Pipeline Pump with Thermal Protection
A pipeline pump with thermal protection includes a motor, a handle arranged on the motor, a pump body arranged on a motor shaft, a water outlet and a water inlet arranged on the pump body, and an impeller arranged inside the pump body. One side of the pump body is fixed and sealed with a pump cover. A temperature detecting device is fixed on the pump body. The temperature detecting device is connected to a circuit board. The pump body is made of a copper material, a blind hole is provided on the pump body, and the temperature detecting device is sealed on the pump body through a thermally conductive adhesive.
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1. Field of the Invention
The present invention relates to a pipeline pump technology, and more particularly to a pipeline pump with thermal protection capable of protecting the pump body under a situation that the pipeline pump is overheated.
2. Related Art
In daily life, during use of a water pump, it is often required to mop the floor with water. When there is much water, much labor is required. There is a water pump like a dust collector which sucks water on the floor to dry the floor. An impeller is rotated at a high speed by using a motor, a negative pressure is generated at a water inlet, and the water flows to the place at a low pressure, so that the water is sucked into a pipeline pump. Under a situation of normal use, the water pump may cool the impeller and the pump body by using the sucked water. However, when the water is pumped completely, there is no water to cool the pump body and the impeller, and after the water in the chamber of the pump body is evaporated completely, the temperature of the pump body rises very quickly. At this time, if there is no thermal protection, the impeller will be damaged in dozens of seconds to several minutes.
SUMMARY OF THE INVENTIONThe technical problem is solved by the present invention by providing a pipeline pump with thermal protection capable of stopping a water pump in time from working under a situation that a pump body is overheated.
The technical solution adopted by the present invention to solve the technical problem is: a pipeline pump with thermal protection, including a motor, where a handle is arranged on the motor, a pump body is arranged on a motor shaft, a water outlet and a water inlet are arranged on the pump body, an impeller is arranged inside the pump body, one side of the pump body is fixed and sealed with a pump cover, a temperature detecting device is fixed on the pump body, and the temperature detecting device is connected to a temperature control circuit board.
In order to be capable of achieving better effect in the thermally conductive aspect, and not to influence normal working of the pump, the pump body is made of a copper material, a blind hole is provided on the pump body, and the temperature detecting device is sealed on the pump body through a thermally conductive adhesive.
Another structure capable of achieving the thermally conductive effect is as follows, a copper insert is arranged between the pump body and the impeller, a blind hole is provided on the inside of the pump body, and the temperature detecting device is sealed on the pump body through a thermally conductive adhesive.
For convenience of mounting the pipeline pump, for convenience of mounting the temperature control circuit board and in order that the appearance does not appear swollen, a bracket is arranged below the motor, a temperature control box is arranged inside the bracket, the temperature control circuit board is mounted inside the temperature control box, and a temperature control box cover seals the temperature control box.
In order to be capable of better detecting the temperature, the temperature detecting device adopts a thermosensitive resistor.
Beneficial effects of the present invention are as follows: the thermosensitive resistor is adopted to monitor the temperature of the pump body and the impeller, and once the temperature of the copper pump body is excessively high, the circuit board outputs a signal to cut off the power source of the pipeline pump, and the pipeline pump stops rotating, so that the damage on the impeller caused by the excessively high temperature of the pump body and the impeller so as to be incapable of working normally can be effectively prevented.
The present invention will become more fully understood from the detailed description given herein below for illustration only, and thus are not limitative of the present invention, and wherein:
- 1. Cross recess head screw
- 2. Pump cover
- 3. Pump body seal gasket
- 4. Impeller
- 5. Pump body
- 6. Temperature detecting device
- 7. Blind hole
- 8. Framework oil seal
- 9. Water thrower
- 10. Motor
- 11. Bracket
- 12. Temperature control box
- 13. Temperature control circuit board
- 14. Temperature control box cover
- 15. Rubber foot pad
- 16. Handle
- 5-1. Water inlet
- 5-2. Water outlet
- 10-1. Motor shaft
As shown in
The thermosensitive resistor is embedded into the blind hole of the copper pump body through the thermally conductive adhesive. When the temperature is excessively high, the power source of the pipeline pump is cut off in time, to protect the impeller from being damaged; and the circuit board is arranged in the bracket below the motor, so the pipeline pump does not appear swollen.
The above description is merely a specific application example, but is not intended to impose any limitation on the protective scope of the present invention. Any technical solution in the form of equivalent replacement or equivalent transformation falls within the protective scope of the claims.
Claims
1. A pipeline pump with thermal protection, comprising a motor, wherein a handle is arranged on the motor, a pump body is arranged on a motor shaft, a water outlet and a water inlet are arranged on the pump body, an impeller is arranged inside the pump body, one side of the pump body is fixed and sealed with a pump cover, a temperature detecting device is fixed on the pump body, and the temperature detecting device is connected to a temperature control circuit board.
2. The pipeline pump with thermal protection according to claim 1, wherein the pump body is made of a copper material, a blind hole is provided on the pump body, and the temperature detecting device is sealed on the pump body through a thermally conductive adhesive.
3. The pipeline pump with thermal protection according to claim 1, wherein a copper insert is arranged between the pump body and the impeller, a blind hole is provided on the inside of the pump body, and the temperature detecting device is sealed on the pump body through a thermally conductive adhesive, and is in contact with the inner wall of the profile cavity of the pump body.
4. The pipeline pump with thermal protection according to claim 1, wherein a bracket is arranged below the motor, a temperature control box is arranged inside the bracket, a temperature control circuit board is mounted inside the temperature control box, and a temperature control box cover seals the temperature control box.
5. The pipeline pump with thermal protection according to claim 1, wherein the temperature detecting device includes a thermosensitive resistor.
Type: Application
Filed: Oct 8, 2011
Publication Date: Sep 19, 2013
Applicant: GP ENTERPRISES CO., LTD. (Suzhou City)
Inventor: Xian Wang (Suzhou City)
Application Number: 13/989,571
International Classification: F04D 29/58 (20060101);