Abstract: The present disclosure discloses a loudspeaker apparatus. The loudspeaker apparatus may include a support connection member configured to contact with a user's head. The loudspeaker apparatus may include at least one loudspeaker assembly. The loudspeaker assembly may include an earphone core and a core housing configured to accommodate the earphone core. The core housing may be fixedly connected to the support connection member. At least one button module may be arranged on the core housing. The interior of the core housing may further include at least two microphones, and the at least two microphones may be arranged at a position different from a user's mouth. The loudspeaker apparatus may further include a control circuit or a battery accommodated in the support connection member. The control circuit or the battery may drive the earphone core to vibrate to generate sound.

Abstract: A pH-sensitive temporary plugging agent and its preparation method, and the use thereof in exploitation of a low-permeability oil reservoir are disclosed. The temporary plugging agent is prepared by raw materials including, in percentages by mass, 3-8% of carboxymethyl chitosan, 0.2-0.7% of gelatin, 0.1-0.6% of an initiator, 5-15% of a toughener, and a balance of water, wherein the initiator is a solution of AgNO3 in ammonia water having a concentration of 0.1-0.3 mol/L, and the toughener is a carboxyl-terminated hyperbranched polyester.

Abstract: The present disclosure relates to a speaker device. The speaker device may include a speaker assembly and a supporting connector. The speaker assembly may include a speaker module and a button module. The supporting connector may be configured to contact with the human head and provide a vibration fulcrum for a vibration of the speaker assembly. A distance between a center of the button module and the vibration fulcrum may be not greater than a distance between a center of the speaker module and the vibration fulcrum.

Abstract: The present disclosure discloses a loudspeaker apparatus. The loudspeaker apparatus comprises a core housing for accommodating the earphone core; a circuit housing for accommodating a control circuit that drives the earphone core to vibrate to generate a sound, wherein the sound includes at least two resonance peaks; an ear hook for connecting the core housing and the circuit housing; a key arranged at a keyhole on the circuit housing, wherein the key moves relative to the keyhole to generate a control signal for the control circuit; and an elastic pad arranged between the key and the keyhole, wherein the elastic pad hinders a movement of the key towards the keyhole. In the present disclosure, by providing an elastic pad between the key and the keyhole, the waterproof effect of the loudspeaker apparatus may be improved, and the space occupied by the key may be reduced.

Abstract: A loudspeaker device includes a speaker component, a first microphone element, and a second microphone element. The speaker component includes an earphone core and a core housing. The first microphone element is disposed on a first branch circuit board of a circuit board. The second microphone element is disposed on a second branch circuit board of the circuit board. The circuit board is configured to electrically connect to an audio signal wire, a first auxiliary signal wire, and a second auxiliary signal wire of an external control circuit. The audio signal wire, the first auxiliary signal wire, and the second auxiliary signal wire are electrically and respectively connected to the earphone core, the first microphone element, and the second microphone element through the circuit board. A board surface of the second branch circuit board is tilt with respect to a board surface of the first branch circuit board.

Abstract: The present disclosure relates to a speaker device including a circuit housing, an ear hook, a rear hook, and a speaker assembly. The speaker assembly may include a headphone core and a housing for accommodating the headphone core, the housing may include a housing panel facing a human body and a housing back opposite to the housing panel, and the headphone core may cause the housing panel and the housing back to vibrate. An absolute value of a difference between a first phase of a vibration of the housing panel and a second phase of a vibration of the housing back may be less than 60 degrees when a frequency of each of the vibration of the housing panel and the vibration of the housing back is between 2000 Hz and 3000 Hz.

Abstract: The present disclosure discloses a loudspeaker apparatus. The loudspeaker apparatus may include a support connection member configured to contact with a user's head. The loudspeaker apparatus may include at least one loudspeaker assembly. The loudspeaker assembly may include an earphone core and a core housing configured to accommodate the earphone core. The core housing may be fixedly connected to the support connection member. At least one button module may be arranged on the core housing. The interior of the core housing may further include at least two microphones, and the at least two microphones may be arranged at a position different from a user's mouth. The loudspeaker apparatus may further include a control circuit or a battery accommodated in the support connection member. The control circuit or the battery may drive the earphone core to vibrate to generate sound.

Abstract: The present disclosure relates to a speaker device. The speaker device may include a core housing, a circuit housing, an ear hook, and a housing sheath. The core housing may be configured to accommodate an earphone core. The circuit housing may be configured to accommodate a control circuit or a battery. The control circuit or the battery may be configured to drive the earphone core to vibrate to produce sound. The ear hook may be configured to connect the core housing with the circuit housing. The housing sheath may at least partially cover the circuit housing and the ear hook. The housing sheath may include waterproof material. The waterproof effect of a speaker device may be improved through sealed connections between various components of the speaker device in this the present disclosure.

Abstract: The present disclosure discloses a loudspeaker apparatus. The loudspeaker apparatus comprises a core housing for accommodating the earphone core; a circuit housing for accommodating a control circuit that drives the earphone core to vibrate to generate a sound, wherein the sound includes at least two resonance peaks; an ear hook for connecting the core housing and the circuit housing; a key arranged at a keyhole on the circuit housing, wherein the key moves relative to the keyhole to generate a control signal for the control circuit; and an elastic pad arranged between the key and the keyhole, wherein the elastic pad hinders a movement of the key towards the keyhole. In the present disclosure, by providing an elastic pad between the key and the keyhole, the waterproof effect of the loudspeaker apparatus may be improved, and the space occupied by the key may be reduced.

Abstract: A speaker device is provided, including a circuit housing for accommodating a control circuit or a battery, an ear hook connected to the circuit housing, a core housing for accommodating an earphone core, a button, and an elastic pad. The control circuit or the battery may drive the earphone core to vibrate to generate sound. The core housing may be connected to the ear hook through a hinge component, which may rotate to change a location of the core housing relative to the ear hook, thereby making the core housing attach to a front or back of a user's ear. The button may be disposed at a button hole on the circuit housing and move relative to the button hole to generate a control signal for the control circuit. The elastic pad may be disposed between the button and the button hole and hinder a movement therebetween.

Abstract: The present disclosure relates to a speaker device. The speaker device may include a core housing, a circuit housing, an ear hook, and a housing sheath. The core housing may be configured to accommodate an earphone core. The circuit housing may be configured to accommodate a control circuit or a battery. The control circuit or the battery may be configured to drive the earphone core to vibrate to produce sound. The ear hook may be configured to connect the core housing with the circuit housing. The housing sheath may at least partially cover the circuit housing and the ear hook. The housing sheath may include waterproof material. The waterproof effect of a speaker device may be improved through sealed connections between various components of the speaker device in this the present disclosure.

Abstract: The present disclosure discloses a loudspeaker apparatus, including an earphone core housing configured to accommodate an earphone core; and a circuit housing including an accommodating body and a cover. The accommodating body may include a cavity with an opening at one end, and the cover may be disposed on the opening for sealing the cavity. The circuit housing may accommodate a control circuit. The control circuit may drive the earphone core to vibrate to generate sound. The loudspeaker apparatus may further include an ear hook configured to connect the earphone core housing and the circuit housing, and a button disposed at a button hole on the circuit housing. The button may move relative to the button hole to generate a control signal for the control circuit. The loudspeaker apparatus may further include an elastic pad disposed between the button and the button hole. The elastic pad may hinder a movement of the button toward the button hole.

Abstract: The present disclosure provides a loudspeaker device. The loudspeaker device includes a support connector configured to be in contact with a head and at least one speaker component. The at least one speaker component may include an earphone core and a core housing for accommodating the earphone core. The core housing may be fixedly connected to the support connector. The core housing may be provided with at least one key module. The support connector may accommodate a control circuit or a battery. The control circuit or the battery may drive the earphone core to vibrate to produce sound. The loudspeaker device of the present disclosure may optimize sound transmission efficiency and increase volume, th ereby improving the user experience.

Abstract: The present disclosure relates to a speaker device including a circuit housing, an ear hook, a rear hook, and a speaker assembly. The speaker assembly may include a headphone core and a housing for accommodating the headphone core, the housing may include a housing panel facing a human body and a housing back opposite to the housing panel, and the headphone core may cause the housing panel and the housing back to vibrate. An absolute value of a difference between a first phase of a vibration of the housing panel and a second phase of a vibration of the housing back may be less than 60 degrees when a frequency of each of the vibration of the housing panel and the vibration of the housing back is between 2000 Hz and 3000 Hz.

Abstract: The present disclosure relates to a speaker device including a core housing. The core housing may accommodate an earphone core. An absolute value of a difference between a first phase of a vibration of a housing panel of the core housing caused by the earphone core and a second phase of the housing back of the core housing caused by the earphone core may be less than 60 degrees when a frequency of each of the vibration of the housing panel and the vibration of the housing back is between 2000 Hz and 3000 Hz. A button may be disposed at a button hole on the circuit housing, and move relative to the button hole to generate a control signal for a control circuit to cause the earphone core to vibrate to generate a sound. An elastic pad may be disposed between the button and the button hole.

Abstract: The present disclosure relates to a speaker device including a circuit housing, an ear hook, a rear hook, and a speaker assembly. The speaker assembly may include a headphone core and a housing for accommodating the headphone core, the housing may include a housing panel facing a human body and a housing back opposite to the housing panel, and the headphone core may cause the housing panel and the housing back to vibrate. An absolute value of a difference between a first phase of a vibration of the housing panel and a second phase of a vibration of the housing back may be less than 60 degrees when a frequency of each of the vibration of the housing panel and the vibration of the housing back is between 2000 Hz and 3000 Hz.

Abstract: A loudspeaker device may include a speaker component, a circuit housing configured to accommodate a control circuit, and a key module disposed on the core housing. The speaker component may include an earphone core and a core housing for accommodating the earphone core. The control circuit may drive the earphone core to vibrate to generate a sound, and the vibration of the earphone core may include at least two resonance peaks. The key module may include a key and an elastic bearing for supporting the key. The elastic bearing may include an integrally formed bearing body and a support column.

Abstract: A pH-sensitive temporary plugging agent and its preparation method, and the use thereof in exploitation of a low-permeability oil reservoir are disclosed. The temporary plugging agent is prepared by raw materials including, in percentages by mass, 3-8% of carboxymethyl chitosan, 0.2-0.7% of gelatin, 0.1-0.6% of an initiator, 5-15% of a toughener, and a balance of water, wherein the initiator is a solution of AgNO3 in ammonia water having a concentration of 0.1-0.3 mol/L, and the toughener is a carboxyl-terminated hyperbranched polyester.

Abstract: The present disclosure relates to a bone conduction speaker and its compound vibration device. The compound vibration device comprises a vibration conductive plate and a vibration board, the vibration conductive plate is set to be the first torus, where at least two first rods inside it converge to its center; the vibration board is set as the second torus, where at least two second rods inside it converge to its center. The vibration conductive plate is fixed with the vibration board; the first torus is fixed on a magnetic system, and the second torus comprises a fixed voice coil, which is driven by the magnetic system. The bone conduction speaker in the present disclosure and its compound vibration device adopt the fixed vibration conductive plate and vibration board, making the technique simpler with a lower cost; because the two adjustable parts in the compound vibration device can adjust both low frequency and high frequency area, the frequency response obtained is flatter and the sound is broader.

Abstract: The present disclosure discloses a loudspeaker apparatus. The loudspeaker may include: a support connector configured to contact a head of a human; at least one loudspeaker component including an earphone core and a housing for accommodating the earphone core, wherein the housing is fixedly connected to the support connector and has at least one key module; a control circuit or a battery that is contained in the support connection, wherein the earphones core is driven by the control circuit or the battery to vibrate to generate sound. The sound includes at least two resonance peaks. The loudspeaker apparatus may optimize the transmission efficiency of the sound, increase sound volume, and improve user experience.