A mounting structure for a wire wound resistor

Abstract

The utility model discloses a mounting structure of a wire wound resistor, comprising two brackets for detachably connecting with the resistor, the two brackets are symmetrically distributed along the length direction of the resistor, the brackets comprise an elastic metal sheet and a conductive cap, the upper end of the elastic metal sheet is welded and fixed to the outer side of the conductive cap, the inner side of the conductive cap is provided with an assembly cavity adapted to the resistor end cap, and the spacing between the inner walls of the assembly cavities on the two conductive caps is less than the length of the resistor. The resistor of the utility model is more convenient to replace later, saving time and effort, and the replacement efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of resistors, in particular to an installation structure of a wire-wound resistor. Background Art

[0002] As an important electronic component, resistors are widely used in electrical equipment. Most current resistors include a resistor body and a lead wire, which is connected to the lead end of the resistor body to form a resistor. This type of resistor can meet the needs to a certain extent, but its disadvantage is that after the resistor is soldered on the PCB board, if it is damaged and needs to be replaced, the tin on the soldering point needs to be removed, which is troublesome to disassemble, time-consuming and labor-intensive, and the replacement efficiency is low. Utility Model Content

[0003] The utility model aims to provide an installation structure for a wire-wound resistor, which makes it easier to replace the resistor later, saves time and effort, and improves the replacement efficiency.

[0004] In order to solve the above technical problems, the utility model adopts the following solutions:

[0005] A mounting structure for a wire-wound resistor comprises two brackets for detachably connecting to the resistor, the two brackets are symmetrically distributed along the length direction of the resistor, the brackets comprise an elastic metal sheet and a conductive cap, the upper end of the elastic metal sheet is welded and fixed to the outer side of the conductive cap, an assembly cavity adapted to the resistor end cap is provided on the inner side of the conductive cap, and the spacing between the inner walls of the assembly cavities on the two conductive caps is smaller than the length of the resistor.

[0006] Due to the adoption of the above technical solution, the two brackets are symmetrically distributed along the length direction of the resistor, ensuring that the resistor can maintain balance during installation. Each bracket is composed of an elastic metal sheet and a conductive cap. The elastic metal sheet is used to provide the necessary elasticity and flexibility, and can adapt to resistors of different sizes or slight changes in the installation environment. The upper end of the elastic metal sheet is fixed to the outer side of the conductive cap by welding. This connection method is both firm and conductive, ensuring that the current can be smoothly transmitted from the bracket to the resistor. An assembly cavity adapted to the resistor end cap is provided on the inner side of the conductive cap. After the resistor is installed on the bracket, the conductive cap can tightly wrap the end cap of the resistor to form a stable electrical connection. The spacing between the inner walls of the assembly cavities on the two conductive caps is smaller than the length of the resistor. It ensures that when the resistor is placed in the assembly cavity, the conductive caps at both ends will compress the resistor, thereby generating sufficient friction to fix the resistor and prevent it from loosening or moving during operation. When replacing or repairing the resistor, it is only necessary to push the conductive cap to both sides or one side. Since the elastic metal sheet has a certain elasticity, the connection between the conductive cap and the resistor can be loosened, and the resistor can be taken out, and then the new resistor can be placed in the assembly cavity and re-fixed. This installation structure of the wire wound resistor has a simple and reasonable design, convenient installation and disassembly of the resistor, and is convenient for rapid replacement of the resistor, saving time and effort, and improving replacement efficiency. At the same time, due to the role of the bracket, the installation height of the conductive cap is raised, and the resistor will not be directly attached to the PCB board, so that the heat dissipation space of the resistor is increased and the heat dissipation performance of the resistor is improved.

[0007] Optionally, the elastic metal sheet includes a connecting portion, a supporting portion and a bending portion, the upper end of the bending portion is connected to the lower end of the connecting portion, the lower end of the bending portion is connected to the upper end of the supporting portion, and the upper end of the connecting portion is welded and fixed to the outer side of the conductive cap.

[0008] Optionally, the bending portion is arc-shaped, and the connecting portion is located inside the supporting portion.

[0009] Optionally, a mounting plate is fixed to the lower end of the support portion.

[0010] Optionally, the mounting plate is a circular plate or a square plate.

[0011] Optionally, the bottom surface of the mounting plate has a wavy surface and a flat surface, and the flat surfaces are located on both sides of the wavy surface.

[0012] Optionally, the wavy surface is distributed along the length or width direction of the mounting plate.

[0013] Optionally, the trough position of the wavy surface is in the same plane as the straight surface.

[0014] Optionally, the elastic metal sheet is made of stainless steel.

[0015] The utility model has the beneficial effects:

[0016] 1. In the utility model, the installation structure of the wire wound resistor has a simple and reasonable design, and the installation and disassembly of the resistor is convenient, and the resistor can be quickly replaced, which saves time and effort and improves the replacement efficiency. At the same time, due to the function of the bracket, the installation height of the conductive cap is raised, and the resistor will not be directly attached to the PCB board, so that the heat dissipation space of the resistor is increased, and the heat dissipation performance of the resistor is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the conductive cap.

[0019] Figure numerals: 1-resistor, 2-end cap, 3-conductive cap, 301-assembly cavity, 4-elastic metal sheet, 401-connecting part, 402-bending part, 403-supporting part, 5-mounting plate, 501-flat surface, 502-wavy surface, 6-PCB board. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below in conjunction with the embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0021] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0022] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "open", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Example

[0024] A mounting structure for a wire-wound resistor comprises two brackets for detachably connecting to a resistor 1, wherein the two brackets are symmetrically distributed along the length direction of the resistor 1, the brackets comprise an elastic metal sheet 4 and a conductive cap 3, the upper end of the elastic metal sheet 4 is welded and fixed to the outer side of the conductive cap 3, an assembly cavity 301 adapted to the end cap 2 of the resistor 1 is provided on the inner side of the conductive cap 3, and the spacing between the inner walls of the assembly cavities 301 on the two conductive caps 3 is smaller than the length of the resistor 1.

[0025] In this embodiment, Figure 1 As shown, the two brackets are symmetrically distributed along the length direction of the resistor 1 to ensure that the resistor 1 can maintain balance during installation. Each bracket is composed of an elastic metal sheet 4 and a conductive cap 3. The elastic metal sheet 4 can be made of stainless steel, which is not easily corroded and has a long service life. The elastic metal sheet 4 is used to provide the necessary elasticity and flexibility to adapt to resistors 1 of different sizes or slight changes in the installation environment. The upper end of the elastic metal sheet 4 is fixed to the outer side of the conductive cap 3 by welding. This connection method is both firm and conductive, ensuring that the current can be smoothly transmitted from the bracket to the resistor 1. Figure 2 As shown, an assembly cavity 301 adapted to the end cap 2 of the resistor 1 is provided on the inner side of the conductive cap 3. After the resistor 1 is installed on the bracket, the conductive cap 3 can tightly wrap the end cap 2 of the resistor 1 to form a stable electrical connection. The spacing between the inner walls of the assembly cavities 301 on the two conductive caps 3 is smaller than the length of the resistor 1, ensuring that when the resistor 1 is placed in the assembly cavity 301, the conductive caps 3 at both ends will compress the resistor 1, thereby generating sufficient friction to fix the resistor 1 to prevent it from loosening or moving during operation. When replacing or repairing the resistor 1, it is only necessary to push the conductive cap 3 to both sides or one side. Since the elastic metal sheet 4 has a certain elasticity, the connection between the conductive cap 3 and the resistor 1 can be loosened, the resistor 1 can be taken out, and then the new resistor 1 can be placed in the assembly cavity 301 and re-fixed. This installation structure of the wound resistor 1 has the advantages of simple and reasonable design, convenient installation and disassembly of the resistor 1, and convenient and quick replacement of the resistor 1, saving time and effort, and improving replacement efficiency. At the same time, due to the function of the bracket, the installation height of the conductive cap 3 is raised, and the resistor 1 will not directly fit with the PCB board 6, so that the heat dissipation space of the resistor 1 is increased and the heat dissipation performance of the resistor 1 is improved.

[0026] Furthermore, the elastic metal sheet 4 includes a connecting portion 401, a supporting portion 403 and a bending portion 402, the upper end of the bending portion 402 is connected to the lower end of the connecting portion 401, the lower end of the bending portion 402 is connected to the upper end of the supporting portion 403, and the upper end of the connecting portion 401 is welded and fixed to the outer side of the conductive cap 3.

[0027] Specifically, the connecting portion 401 is located at the upper end of the elastic metal sheet 4, and its main function is to be welded and fixed to the outer side of the conductive cap 3. This welding method provides stable mechanical and electrical connections to ensure that the current can be smoothly transmitted from the conductive cap 3 to the resistor 1. The bending portion 402 is located between the connecting portion 401 and the supporting portion 403, and it plays a role in connecting the two parts. The bending portion 402 makes the elastic metal sheet 4 have good elasticity and flexibility, making the replacement of the resistor 1 more convenient, and can also adapt to different sizes of resistors 1 or slight changes in the installation environment. The supporting portion 403 is located at the lower end of the elastic metal sheet 4, and it is the main supporting structure of the entire bracket. The supporting portion 403 is connected to the bending portion 402 to provide stable support for the resistor 1 together. The supporting portion 403 is used to be welded to the corresponding position on the PCB board 6. The length and width of the supporting portion 403 can be adjusted according to the size and weight of the resistor 1 to ensure that the bracket can firmly support the resistor 1 and prevent it from loosening or moving during use.

[0028] Furthermore, the bending portion 402 is in an arc shape, and the connecting portion 401 is located inside the supporting portion 403 .

[0029] Specifically, the bending portion 402 is designed to be in an arc shape. Such a design allows the elastic metal sheet 4 to be more easily deformed when subjected to pressure, thereby providing stronger elasticity and adaptability. This design enables the mounting structure to better adapt to the end caps 2 of resistors 1 of different sizes, ensuring the tightness and stability of the assembly. The arc-shaped bending portion 402 can also reduce stress concentration and improve the durability and reliability of the entire bracket. The connecting portion 401 is located on the inner side of the supporting portion 403. Such a layout can make the connection between the conductive cap 3 and the resistor 1 more compact and reduce the occupied space. At the same time, this can also ensure that the connection between the connecting portion 401 and the supporting portion 403 is more secure, thereby improving the overall stability.

[0030] Furthermore, a mounting plate 5 is fixed to the lower end of the support portion 403 .

[0031] Furthermore, the mounting plate 5 is a circular plate or a square plate.

[0032] Specifically, Figure 1As shown, the mounting plate 5 is mainly used to fix the support portion 403 (and the entire bracket) on the PCB board 6. The mounting plate 5 can ensure that the resistor 1 remains stable during operation and will not shift due to vibration or other external factors. The mounting plate 5 can also provide additional support area to disperse the weight and stress generated by the resistor 1, thereby improving the stability and reliability of the entire mounting structure. The mounting plate 5 can be a circular plate or a square plate. The connection method between the mounting plate 5 and the support portion 403 can be welding to ensure that the connection between the mounting plate 5 and the support portion 403 is firm and reliable and can withstand the weight and stress generated by the resistor 1. By adding the mounting plate 5, the stability and reliability of the entire mounting structure are improved. The mounting plate 5 can disperse stress, prevent displacement, and ensure the stability of the resistor 1 during operation.

[0033] Furthermore, the bottom surface of the mounting plate 5 has a wavy surface 502 and a flat surface 501 , and the flat surface 501 is located on both sides of the wavy surface 502 .

[0034] Furthermore, the wavy surface 502 is distributed along the length or width direction of the mounting plate 5 .

[0035] Furthermore, the trough position of the wavy surface 502 is in the same plane as the straight surface 501 .

[0036] Specifically, Figure 1 As shown, the flat surface 501 is located on both sides of the wavy surface 502. This design can provide additional friction and support force on the basis of ensuring the overall stability of the mounting plate 5. When the flat surface 501 contacts the mounting surface, it can ensure a stable connection between the mounting plate 5 and the mounting surface to prevent sliding or displacement. The wavy surface 502 can increase the contact area between the mounting plate 5 and the mounting surface, and to a certain extent increase the friction force, further improving the stability of the mounting structure. When the mounting plate 5 is welded to the PCB board 6, the wavy surface 502 can accommodate more solder, further improving the firmness of the welding of the mounting plate 5 and the PCB board 6, thereby improving the connection firmness between the entire bracket and the PCB board 6, ensuring the normal use of the resistor 1. The trough position of the wavy surface 502 is in the same plane as the flat surface 501. This design can ensure that the bottom surface of the mounting plate 5 remains flat as a whole. When the mounting plate 5 is placed on the PCB, both the wavy surface 502 and the flat surface 501 can be in close contact with the mounting surface to provide uniform support force.

[0037] The above is only a preferred embodiment of the utility model and does not limit the utility model in any form. According to the technical essence of the utility model, within the spirit and principles of the utility model, any simple modification, equivalent replacement and improvement made to the above embodiment still falls within the protection scope of the technical solution of the utility model.

Claims

1. A mounting structure for a wire wound resistor, characterized in that: The invention comprises two brackets for being detachably connected to a resistor (1), the two brackets being symmetrically distributed along the length direction of the resistor (1), the brackets comprising an elastic metal sheet (4) and a conductive cap (3), the upper end of the elastic metal sheet (4) being welded and fixed to the outer side of the conductive cap (3), the inner side of the conductive cap (3) being provided with an assembly cavity (301) adapted to an end cap (2) of the resistor (1), and the spacing between the inner walls of the assembly cavities (301) on the two conductive caps (3) being smaller than the length of the resistor (1).

2. The installation structure of a wire wound resistor according to claim 1, characterized in that: The elastic metal sheet (4) comprises a connecting portion (401), a supporting portion (403) and a bending portion (402); the upper end of the bending portion (402) is connected to the lower end of the connecting portion (401); the lower end of the bending portion (402) is connected to the upper end of the supporting portion (403); and the upper end of the connecting portion (401) is fixed to the outer side of the conductive cap (3) by welding.

3. The installation structure of a wire wound resistor according to claim 2, characterized in that: The bending portion (402) is in an arc shape, and the connecting portion (401) is located inside the supporting portion (403).

4. The installation structure of a wirewound resistor according to claim 2, characterized in that: A mounting plate (5) is fixed to the lower end of the support portion (403).

5. The installation structure of a wire wound resistor according to claim 4, characterized in that: The mounting plate (5) is a circular plate or a square plate.

6. The installation structure of a wirewound resistor according to claim 5, characterized in that: The bottom surface of the mounting plate (5) comprises a wavy surface (502) and a flat surface (501), wherein the flat surface (501) is located on both sides of the wavy surface (502).

7. The installation structure of a wirewound resistor according to claim 6, characterized in that: The wavy surface (502) is distributed along the length or width direction of the mounting plate (5).

8. The installation structure of a wirewound resistor according to claim 6, characterized in that: The trough position of the wavy surface (502) is in the same plane as the straight surface (501).

9. The installation structure of a wirewound resistor according to claim 1, characterized in that: The elastic metal sheet (4) is made of stainless steel.

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