Abstract: A small reactor with high heat-release performance is provided. A reactor 1 includes an assembly (10) and a case (4), the assembly (10) having a coil (2) and a magnetic core (3) at which the coil (2) is arranged, the case (4) housing the assembly (10). The case (4) includes a bottom plate (40) that contacts a fixing object when the reactor (1) is installed on the fixing object, a side wall (41) that is mounted on the bottom plate (40) with an adhesive and surrounds the assembly (10), and a junction layer (42) that fixes the coil (2) to an inner surface of the bottom plate (40). The bottom plate (40) is formed of a material with higher thermal conductivity than that of the side wall (41). The reactor (1) easily transfers heat of the coil (2) to the bottom plate (40) and hence has high heat-release performance because the reactor (1) includes the bottom plate (40) with the high thermal conductivity and the coil (2) is joined to the bottom plate (40) through the junction layer (42).

Abstract: A reactor being small in size and exhibiting excellent productivity, a method for manufacturing the same, and a reactor component suitable as the constituent component of the reactor are provided. The reactor includes a combined product including a coil and a magnetic core, and a case storing the combined product. The case includes a bottom plate portion made of aluminum, a side wall portion made of an insulating resin, and a joining layer formed on the inner face of the bottom plate portion for fixing the coil. The bottom plate portion and the side wall portion are independent separate members, which are integrated with each other by bolts and the like. Terminal fittings having a pair of joining pieces, which are disposed at the positions opposing to the end portions of the wire structuring the coil, are fixed to the side wall portion.

Abstract: Provided is a reactor and a reactor component that can prevent cracking of a resin portion that is interposed between a coil and an internal core portion. The reactor includes a coil 10 and a core that includes an internal core portion 22 and a couple core portion 24. The coil 10 is formed by helically winding a wire. The internal core portion 22 is disposed inside the coil and forms a part of a closed magnetic path. The couple core portion 24 is joined to the internal core portion 22 and forms the remaining part of the closed magnetic path. The reactor includes a resin portion (internal resin portion 30) including a region that is interposed between the coil 10 and the internal core portion 22, and a cushioning member 70 that is interposed between the resin portion and the internal core portion 22 and that does not cover the couple core portion 24. It is preferable that the material of the cushioning member 70 has a Young's modulus that is smaller than a resin material of the resin portion.

Abstract: A reactor 1 of the present invention includes a coil 2, a magnetic core 3 at which the coil 2 is disposed, and a case 4 storing a combined product 10 made up of the coil 2 and the magnetic core 3. The case 4 includes a bottom plate portion and a side wall portion 41A surrounding the combined product 10. The side wall portion 41A is made of an insulating resin. A hook portion 43a on which a line 71, which is coupled to a sensor 7 for measuring the physical quantity of the reactor 1, such as a temperature sensor, is hooked is integrally molded with the side wall portion 41A by the resin structuring the side wall portion 41A. Allowing the line 71 to be hooked on the hook portion 43a and fixed thereto, the sensor 7 can be prevented from being displaced or coming off because of the line 71 being pulled or the like. Thus, the sensor 7 can be maintained at a proper position.

Abstract: To provide a reactor with which resin can fully be packed between a core and a coil with ease, and in which the core can easily be handled when the reactor is manufactured. The reactor includes: a coil 10 formed with paired coil elements 10A and 10B that are made of a spirally wound wire, the coil elements being coupled to each other in a paralleled state; internal core portions 22 that are fitted into the coil elements 10A and 10B to structure a part of an annular core 20; and exposed core portions 24 that are exposed outside the coil elements 10A and 10B to couple the internal core portions 22 to each other, to thereby form the rest of the annular core 20. The reactor includes an external resin portion that covers at least a part of an assembled product 1A made up of the coil 10 and the core 20. An interval between the inner end face 24f of the exposed core portion 24 and the end face of the coil 10 is 0.5 mm to 4.0 mm, whereby the resin can easily be packed between the coil 10 and the core 20.

Abstract: The present invention provides a reactor with which a sensor for measuring the physical quantity (temperature or the like) of the reactor and an external apparatus can be connected to each other in a stable manner. The reactor 1A of the present invention includes a coil 2, a magnetic core 3 at which the coil 2 is disposed, and a case 4 storing a combined product 10 made up of the coil 2 and the magnetic core 3. The case 4 includes a bottom plate portion and a side wall portion 41 surrounding the combined product 10. The side wall portion 41 is made of an insulating resin. A connector hooking portion 44 on which a connector portion 72, which is coupled via a line 71 to a sensor such as a temperature sensor for measuring the physical quantity of the reactor 1A is hooked is integrally molded with the side wall portion 41 by the resin structuring the side wall portion 41.

Abstract: To provide a reactor with which resin can fully be packed between a core and a coil with ease, and in which the core can easily be handled when the reactor is manufactured. The reactor includes: a coil 10 formed with paired coil elements 10A and 10B that are made of a spirally wound wire, the coil elements being coupled to each other in a paralleled state; internal core portions 22 that are fitted into the coil elements 10A and 10B to structure a part of an annular core 20; and exposed core portions 24 that are exposed outside the coil elements 10A and 10B to couple the internal core portions 22 to each other, to thereby form the rest of the annular core 20. The reactor includes an external resin portion that covers at least a part of an assembled product 1A made up of the coil 10 and the core 20.

Abstract: A small reactor capable of appropriately measuring the temperature of a coil is provided. The reactor includes a coil 2 including a pair of coil elements 2a and 2b and a magnetic core including a pair of inner core portions 31 disposed in the respective coil elements 2a and 2b and outer core portions that connect the inner core portions 31 to form a closed magnetic circuit. Each of the coil elements 2a and 2b has an end face shape having a rounded corner portion 21, which is a corner portion of a rectangle that is rounded. A temperature sensor 7 is disposed in a trapezoidal space between the rounded corner portions 21 of the coil elements 2a and 2b that face each other. The temperature sensor 7 is pressed so as to contact the rounded corner portions 21 by the sensor holder portion 54 provided on an insulator, and is capable of appropriately measuring the temperature of the coil 2.

Abstract: A reactor being small in size and exhibiting excellent productivity, a method for manufacturing the same, and a reactor component suitable as the constituent component of the reactor are provided. The reactor includes a combined product including a coil and a magnetic core, and a case storing the combined product. The case includes a bottom plate portion made of aluminum, a side wall portion made of an insulating resin, and a joining layer formed on the inner face of the bottom plate portion for fixing the coil. The bottom plate portion and the side wall portion are independent separate members, which are integrated with each other by bolts and the like. Terminal fittings having a pair of joining pieces, which are disposed at the positions opposing to the end portions of the wire structuring the coil, are fixed to the side wall portion.

Abstract: A small reactor with high heat-release performance is provided. A reactor 1 includes an assembly (10) and a case (4), the assembly (10) having a coil (2) and a magnetic core (3) at which the coil (2) is arranged, the case (4) housing the assembly (10). The case (4) includes a bottom plate (40) that contacts a fixing object when the reactor (1) is installed on the fixing object, a side wall (41) that is mounted on the bottom plate (40) with an adhesive and surrounds the assembly (10), and a junction layer (42) that fixes the coil (2) to an inner surface of the bottom plate (40). The bottom plate (40) is formed of a material with higher thermal conductivity than that of the side wall (41). The reactor (1) easily transfers heat of the coil (2) to the bottom plate (40) and hence has high heat-release performance because the reactor (1) includes the bottom plate (40) with the high thermal conductivity and the coil (2) is joined to the bottom plate (40) through the junction layer (42).

Abstract: To provide a reactor with which resin can fully be packed between a core and a coil with ease, and in which the core can easily be handled when the reactor is manufactured. The reactor includes: a coil 10 formed with paired coil elements 10A and 10B that are made of a spirally wound wire, the coil elements being coupled to each other in a paralleled state; internal core portions 22 that are fitted into the coil elements 10A and 10B to structure a part of an annular core 20; and exposed core portions 24 that are exposed outside the coil elements 10A and 10B to couple the internal core portions 22 to each other, to thereby form the rest of the annular core 20. The reactor includes an external resin portion that covers at least a part of an assembled product 1A made up of the coil 10 and the core 20.

Abstract: A compact reactor with excellent productivity and heat dissipation is provided. Reactor 1? includes a coil formed by spirally winding a wire 2w and a magnetic core 3 having an inside core portion inserted into the coil and an outside core portion 32 coupled to the inside core portion. These core portions form a closed magnetic circuit. The coil is covered with an inside resin portion 4 on the outer circumference thereof to form a coil molded unit 20? with its shape being held. The outer circumference of a combination unit 10 of the coil molded unit 20? and the magnetic core 3 is covered with an outside resin portion 5?. Reactor 1? does not have a case and is thus compact. A surface of the outside core portion 32 on the installation side (core installation surface 32d) is exposed form the outside resin portion 5? and is in direct contact with a fixed object, thereby achieving excellent heat dissipation.

Abstract: To provide a reactor with which resin can fully be packed between a core and a coil with ease, and in which the core can easily be handled when the reactor is manufactured. The reactor includes: a coil 10 formed with paired coil elements 10A and 10B that are made of a spirally wound wire, the coil elements being coupled to each other in a paralleled state; internal core portions 22 that are fitted into the coil elements 10A and 10B to structure a part of an annular core 20; and exposed core portions 24 that are exposed outside the coil elements 10A and 10B to couple the internal core portions 22 to each other, to thereby form the rest of the annular core 20. The reactor includes an external resin portion that covers at least a part of an assembled product 1A made up of the coil 10 and the core 20.

Abstract: Provided is a reactor and a reactor component that can prevent cracking of a resin portion that is interposed between a coil and an internal core portion. The reactor includes a coil 10 and a core that includes an internal core portion 22 and a couple core portion 24. The coil 10 is formed by helically winding a wire. The internal core portion 22 is disposed inside the coil and forms a part of a closed magnetic path. The couple core portion 24 is joined to the internal core portion 22 and forms the remaining part of the closed magnetic path. The reactor includes a resin portion (internal resin portion 30) including a region that is interposed between the coil 10 and the internal core portion 22, and a cushioning member 70 that is interposed between the resin portion and the internal core portion 22 and that does not cover the couple core portion 24. It is preferable that the material of the cushioning member 70 has a Young's modulus that is smaller than a resin material of the resin portion.

Abstract: A compact reactor with excellent productivity and heat dissipation is provided. Reactor 1? includes a coil formed by spirally winding a wire 2w and a magnetic core 3 having an inside core portion inserted into the coil and an outside core portion 32 coupled to the inside core portion. These core portions form a closed magnetic circuit. The coil is covered with an inside resin portion 4 on the outer circumference thereof to form a coil molded unit 20? with its shape being held. The outer circumference of a combination unit 10 of the coil molded unit 20? and the magnetic core 3 is covered with an outside resin portion 5?. Reactor 1? does not have a case and is thus compact. A surface of the outside core portion 32 on the installation side (core installation surface 32d) is exposed form the outside resin portion 5? and is in direct contact with a fixed object, thereby achieving excellent heat dissipation.

Abstract: An apparatus for specifying three-dimensional coordinates of a body includes an image position sensing unit for converging a light radiating from a specific body arranged in a space on a plane to form an image and detecting a position of the image on the plane, one or a plurality of mirrors for reflecting the light from the specific body to allow the reflected light to enter the image position sensing unit, and a coordinate calculating unit for calculating coordinates of the specific body in a three-dimensional coordinate system defined in a three-dimensional space based on the positions of the images respectively formed by a light radiating from the specific body and directly entering the image position sensing unit and a light reflected by the mirror and entering the image position sensing unit.