CN215931992U - Mutual inductor assembly capable of reducing temperature rise - Google Patents
Mutual inductor assembly capable of reducing temperature rise Download PDFInfo
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- CN215931992U CN215931992U CN202121697497.9U CN202121697497U CN215931992U CN 215931992 U CN215931992 U CN 215931992U CN 202121697497 U CN202121697497 U CN 202121697497U CN 215931992 U CN215931992 U CN 215931992U
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- 238000003466 welding Methods 0.000 claims abstract description 28
- 238000004804 winding Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
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Abstract
A mutual inductor component for reducing temperature rise comprises a current mutual inductor, a U-shaped terminal, a Z-shaped adapter sheet and two wiring terminals; the current transformer is cylindrical, and a through hole is formed in the middle of the end face of the current transformer; the U-shaped terminal comprises a first support leg, a connecting part and a second support leg which are connected in sequence; the first leg penetrates through a through hole of the current transformer; one side of the first end of the Z-shaped adapter sheet is welded with one side of one end of the first support leg, which is far away from the connecting part, and one side of the second end of the Z-shaped adapter sheet is welded with one wiring terminal; one end of the second support leg, which is far away from the connecting part, is bent by 90 degrees to form a bent part, the tail end of the bent part is bent by 90 degrees to form a welding part, and the welding part is parallel to the second support leg and the first support leg; one side of the welding part is welded with the other connecting terminal. Therefore, only one Z-shaped adapter sheet is needed, the temperature rise is reduced, the reliability is improved, the production procedures are reduced, and the production efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of electrical components, in particular to a mutual inductor assembly capable of reducing temperature rise.
Background
The current transformer is an instrument for measuring by converting a large primary side current into a small secondary side current according to the electromagnetic induction principle. The current magnitude is greatly different in the lines of power generation, transformation, transmission, distribution and power utilization, from several amperes to tens of thousands of amperes. In order to convert the current into a more uniform current for measurement, protection and control, the voltage on the line is generally higher, and direct measurement is very dangerous. The current transformer plays the role of current transformation and electric isolation.
Referring to fig. 4, the conventional transformer assembly includes a current transformer 1, a U-shaped terminal 2, two Z-shaped adapters 3, and two terminals 4. The U-shaped terminal 2 is provided with a first supporting leg 201, a connecting part 202 and a second supporting leg 203 which are sequentially connected, the first supporting leg 201 penetrates through the current transformer 1, the first ends of the two Z-shaped adapter pieces 3 are respectively welded with the first supporting leg 201 and the second supporting leg 203, and the second ends are respectively welded with the two wiring terminals 4. The current transformer mounting structure of the electronic overload relay disclosed in the chinese patent CN210575506U needs two Z-shaped adapter pieces 3, so that the number of welding times is large, the temperature rise of the product is large, the reliability needs to be improved, the number of production processes is large, the operation is troublesome, and the production efficiency is low.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a temperature rise reducing transformer assembly that reduces temperature rise, improves reliability, reduces production processes, and improves production efficiency, so as to solve the above problems.
A mutual inductor component for reducing temperature rise comprises a current transformer, a U-shaped terminal penetrating through the current transformer, a Z-shaped adapter sheet connected with one end of the U-shaped terminal and two wiring terminals; the current transformer is cylindrical, and a through hole is formed in the middle of the end face of the current transformer; the U-shaped terminal comprises a first support leg, a connecting part and a second support leg which are connected in sequence; the first leg penetrates through a through hole of the current transformer; one side of the first end of the Z-shaped adapter sheet is welded with one side of one end of the first support leg, which is far away from the connecting part, and one side of the second end of the Z-shaped adapter sheet is welded with one wiring terminal; one end of the second support leg, which is far away from the connecting part, is bent by 90 degrees to form a bent part, the tail end of the bent part is bent by 90 degrees to form a welding part, and the welding part is parallel to the second support leg and the first support leg; one side of the welding part is welded with the other connecting terminal.
Further, the shape of the via hole is in a cross shape.
Furthermore, a protruding part is arranged on the circumferential side wall of the current transformer in a protruding mode, the protruding part is parallel to the axial direction of the current transformer, and one end of the protruding part is provided with a wire passing hole; the inside of the current transformer is provided with a coil winding, the coil winding is connected with a cable, and the cable is partially positioned in the protruding part and passes through the wire passing hole.
Furthermore, one side of the second end of the Z-shaped adapter sheet, which is far away from the first end, is welded with a wiring terminal.
Further, one side of the welding part, which is far away from the second support leg, is welded with the other wiring terminal.
Furthermore, the welding part and the second end of the Z-shaped adapter sheet are located on the same plane, and the two wiring terminals are located on the same plane.
Furthermore, one side of the first end of the wiring terminal is provided with a step groove, the end face of the second end is provided with a wiring hole, and one side of the wiring terminal is provided with a plurality of locking screw holes vertically communicated with the wiring hole.
Compared with the prior art, the mutual inductor component for reducing the temperature rise comprises a current transformer, a U-shaped terminal penetrating through the current transformer, a Z-shaped adapter sheet connected with one end of the U-shaped terminal and two wiring terminals; the current transformer is cylindrical, and a through hole is formed in the middle of the end face of the current transformer; the U-shaped terminal comprises a first support leg, a connecting part and a second support leg which are connected in sequence; the first leg penetrates through a through hole of the current transformer; one side of the first end of the Z-shaped adapter sheet is welded with one side of one end of the first support leg, which is far away from the connecting part, and one side of the second end of the Z-shaped adapter sheet is welded with one wiring terminal; one end of the second support leg, which is far away from the connecting part, is bent by 90 degrees to form a bent part, the tail end of the bent part is bent by 90 degrees to form a welding part, and the welding part is parallel to the second support leg and the first support leg; one side of the welding part is welded with the other connecting terminal. So the second stabilizer blade is buckled and is formed the kink, directly with binding post welding, reduces heat transfer's transition material to reduce the temperature rise, improve the reliability, reduced the Z shape switching piece and reduced a welding step, so reduce production processes, improve production efficiency.
Drawings
Embodiments of the utility model are described below with reference to the accompanying drawings, in which:
fig. 1 is a perspective view of a transformer assembly for reducing temperature rise according to the present invention.
Fig. 2 is a side schematic view of the current transformer of fig. 1.
Fig. 3 is a schematic view of the U-shaped terminal and the Z-shaped interposer shown in fig. 1.
Fig. 4 is a perspective view of a conventional transformer assembly.
Detailed Description
Specific embodiments of the present invention will be described in further detail below based on the drawings. It should be understood that the description herein of embodiments of the utility model is not intended to limit the scope of the utility model.
Referring to fig. 1 to 3, the transformer assembly for reducing temperature rise according to the present invention includes a current transformer 10, a U-shaped terminal 20, a Z-shaped interposer 30 and two connection terminals 40.
The current transformer 10 is cylindrical, a cross-shaped via hole 11 is formed in the middle of the end face of the current transformer, a protruding portion 12 protrudes from the circumferential side wall, the protruding portion 12 is parallel to the axial direction of the current transformer 10, and a wire passing hole 121 is formed in one end of the protruding portion 12. The inside of the current transformer 10 is provided with a coil winding to which a cable is connected, the cable being partially located in the protrusion 12 and passing through the wire passing hole 121.
The U-shaped terminal 20 includes a first leg 21, a connecting portion 22, and a second leg 23 connected in this order.
The first leg 21 and the second leg 23 are both flat, the first leg 21 passes through the through hole 11 of the current transformer 10, and the cross-shaped through hole 11 enables the angle of the first leg 21 passing through the through hole 11 to be adjustable, so that the first leg and the second leg can be conveniently installed with different external shells.
One side of the first end of the Z-shaped adapter sheet 30 is welded to one side of one end of the first leg 201 away from the connecting part 22. The side of the second end of the Z-shaped interposer 30 remote from the first end is soldered to a terminal 40.
One end of the second supporting leg 23, which is far away from the connecting portion 22, is bent by 90 degrees to form a bent portion 24, the end of the bent portion 24 is bent by 90 degrees to form a welding portion 25, and the welding portion 25 is parallel to the second supporting leg 23 and the first supporting leg 21.
The side of the welding portion 25 remote from the second leg 23 is welded to the other terminal 40.
In the present embodiment, the welding portion 25 and the second end of the Z-shaped interposer 30 are located on the same plane, and the two connection terminals 40 are located on the same plane. Thus facilitating installation.
One side of the first end of the wiring terminal 40 is provided with a step groove 41, the end face of the second end is provided with a wiring hole 42, and one side of the wiring terminal 40 is provided with a plurality of locking screw holes 43 vertically communicated with the wiring hole 42. The external cable is positioned in the wiring hole 42, and a locking screw is in threaded connection with the locking screw hole 43 and is abutted against the external cable. The Z-shaped interposer 30 and the soldering portion 25 are respectively bonded to and soldered to the step grooves 41 of the two terminals 40.
The welded portion 25 is formed by bending in advance. During assembly, the first supporting leg 21 penetrates through the through hole 11, the second supporting leg 23 is bent to form a bent portion 24, the Z-shaped adapter sheet 30 is welded between the first supporting leg 21 and one wiring terminal 40, and the welding portion 25 is welded with the other wiring terminal 40.
Compared with the prior art, the mutual inductor assembly for reducing temperature rise comprises a current mutual inductor 10, a U-shaped terminal 20, a Z-shaped adapter sheet 30 and two wiring terminals 40; the current transformer 10 is cylindrical, and a through hole 11 is formed in the middle of the end face of the current transformer 10; the U-shaped terminal 20 comprises a first support leg 21, a connecting part 22 and a second support leg 23 which are connected in sequence; the first leg 21 passes through the via hole 11 of the current transformer 10; one side of the first end of the Z-shaped adapter sheet 30 is welded with one side of one end of the first support leg 201 far away from the connecting part 22, and one side of the second end of the Z-shaped adapter sheet 30 is welded with one wiring terminal 40; one end of the second supporting leg 23, which is far away from the connecting part 22, is bent by 90 degrees to form a bent part 24, the tail end of the bent part 24 is bent by 90 degrees to form a welding part 25, and the welding part 25 is parallel to the second supporting leg 23 and the first supporting leg 21; one side of the welding portion 25 is welded to the other terminal 40. The second support leg 23 is bent to form a bent part 24, and is directly welded with the wiring terminal 40, so that transition materials for heat transfer are reduced, temperature rise is reduced, reliability is improved, a Z-shaped adapter plate is reduced, a welding step is omitted, production procedures are reduced, and production efficiency is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, and any modifications, equivalents or improvements that are within the spirit of the present invention are intended to be covered by the following claims.
Claims (7)
1. A mutual inductor assembly for reducing temperature rise, comprising: the current transformer comprises a current transformer, a U-shaped terminal penetrating through the current transformer, a Z-shaped adapter sheet connected with one end of the U-shaped terminal and two wiring terminals; the current transformer is cylindrical, and a through hole is formed in the middle of the end face of the current transformer; the U-shaped terminal comprises a first support leg, a connecting part and a second support leg which are connected in sequence; the first leg penetrates through a through hole of the current transformer; one side of the first end of the Z-shaped adapter sheet is welded with one side of one end of the first support leg, which is far away from the connecting part, and one side of the second end of the Z-shaped adapter sheet is welded with one wiring terminal; one end of the second support leg, which is far away from the connecting part, is bent by 90 degrees to form a bent part, the tail end of the bent part is bent by 90 degrees to form a welding part, and the welding part is parallel to the second support leg and the first support leg; one side of the welding part is welded with the other connecting terminal.
2. The reduced temperature rise transformer assembly of claim 1, wherein: the shape of the via hole is in a cross shape.
3. The reduced temperature rise transformer assembly of claim 1, wherein: a protruding part is arranged on the circumferential side wall of the current transformer in a protruding mode, the protruding part is parallel to the axial direction of the current transformer, and one end of the protruding part is provided with a wire passing hole; the inside of the current transformer is provided with a coil winding, the coil winding is connected with a cable, and the cable is partially positioned in the protruding part and passes through the wire passing hole.
4. The reduced temperature rise transformer assembly of claim 1, wherein: and one side of the second end of the Z-shaped adapter sheet, which is far away from the first end, is welded with one wiring terminal.
5. The reduced temperature rise transformer assembly of claim 4, wherein: and one side of the welding part, which is far away from the second supporting leg, is welded with the other connecting terminal.
6. The reduced temperature transformer assembly of claim 5, wherein: the welding part and the second end of the Z-shaped adapter sheet are located on the same plane, and the two wiring terminals are located on the same plane.
7. The reduced temperature rise transformer assembly of claim 1, wherein: one side of the first end of the wiring terminal is provided with a step groove, the end face of the second end is provided with a wiring hole, and one side of the wiring terminal is provided with a plurality of locking screw holes vertically communicated with the wiring hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121697497.9U CN215931992U (en) | 2021-07-23 | 2021-07-23 | Mutual inductor assembly capable of reducing temperature rise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121697497.9U CN215931992U (en) | 2021-07-23 | 2021-07-23 | Mutual inductor assembly capable of reducing temperature rise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215931992U true CN215931992U (en) | 2022-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121697497.9U Active CN215931992U (en) | 2021-07-23 | 2021-07-23 | Mutual inductor assembly capable of reducing temperature rise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215931992U (en) |
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2021
- 2021-07-23 CN CN202121697497.9U patent/CN215931992U/en active Active
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