Plate-shaped resistive element and resistor

Abstract

The utility model discloses a plate-shaped resistor element and a resistor. The plate-shaped resistor element comprises a metal plate, the metal plate is provided with a plurality of stamping parts, the stamping parts are arranged side by side in a strip-shaped structure, the stamping parts protrude out of the surface of the metal plate, and gaps are formed between the stamping parts and the surface of the metal plate. No extra waste material is generated in the process of processing the stamping part, so that the generation amount of the waste material in the whole processing process of the metal plate can be reduced, the generation amount of the waste material in the processing process is reduced, and the manufacturing cost of the resistor is reduced. Meanwhile, waste materials are not generated in the gap forming process, the metal plate with the same area has higher power, the overall structural strength of the metal plate is improved through the protruding stamping part, deformation is not likely to happen, the performance is more stable, and the service life is longer.

Description

Technical Field

[0001] The utility model relates to the technical field of resistors, in particular to a plate-shaped resistor element and a resistor. Background Art

[0002] In industrial production, resistors are widely used. Among them, resistors using sheet resistors are mainly used when large current is overloaded for a short time because of their strong impact resistance. Chinese Patent Publication No. CN213092950U U discloses a resistor sheet of a resistor, including at least two layers of serpentine resistor sheets. During the use of the resistor sheet, multiple resistor sheets are usually installed on an insulating component and used side by side. For the resistor sheet, in order to meet the requirements of the resistance value, punching is usually used to form an open groove on the metal plate. In the actual processing and production process, the open groove at the punching will generate more waste, which will lead to waste of raw materials and increase manufacturing costs. In view of this, how to design a resistor that reduces waste generation to reduce manufacturing costs is a technical problem to be solved by the utility model. Utility Model Content

[0003] The utility model provides a plate-shaped resistance element and a resistor, which can reduce the amount of waste generated during the processing process, thereby reducing the manufacturing cost of the resistor.

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

[0005] The utility model provides a plate-shaped resistor element, comprising a metal plate, on which a plurality of stamping parts are arranged side by side in a strip structure, the stamping parts protrude from the surface of the metal plate, and gaps are formed between the stamping parts and the surface of the metal plate.

[0006] Furthermore, two end portions of the stamping portion are fixedly disposed on the metal plate.

[0007] Furthermore, one side of the stamping portion is arranged on the metal plate, and the gap is formed between the other side of the stamping portion and the surface of the metal plate.

[0008] Furthermore, the stamping portion has an inclined section and a bent section, the inclined section is arranged on the metal plate and extends obliquely outward, and the bent section is arranged on the inclined section and extends toward the surface of the metal plate;

[0009] Wherein, the gap is formed between the bending section and the metal plate.

[0010] Furthermore, gaps are formed between two side portions of the stamping portion and the surface of the metal plate respectively.

[0011] Furthermore, it also includes corner guards, which are respectively provided on both sides of the metal plate, and the stamping part is arranged between the two corner guards.

[0012] Furthermore, both ends of the metal plate are respectively provided with mounting and fixing parts;

[0013] The installation and fixing portion includes an installation opening formed at the end of the metal plate and / or a notch formed at the end of the metal plate.

[0014] The utility model also provides a resistor, comprising an insulating support member and the plate-shaped resistance element; a plurality of the plate-shaped resistance elements are arranged side by side and are provided on the insulating support member.

[0015] The technical solution of the utility model has the following technical effects compared with the prior art: by using stamping to form a stamping part of an integrated structure on a metal plate, the stamping part is separated from the surface of the metal plate during the forming process, thereby forming a gap between the stamping part and the metal plate to meet the use requirements of the plate-shaped resistor element, and no additional waste is generated during the processing of the stamping part, thereby reducing the amount of waste generated during the overall processing of the metal plate, thereby reducing the amount of waste generated during the processing, so as to reduce the manufacturing cost of the resistor. In addition, since the stamping part protrudes from the surface of the metal plate after the processing is completed and acts as a reinforcing rib, the overall structural strength of the plate-shaped resistor element is improved to improve the reliability of use. At the same time, since no waste is generated during the process of forming the gap, the metal plate of the same area has higher power, and the protruding stamping part improves the overall structural strength of the metal plate, is not easy to deform, and thus has more stable performance and longer life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is one of the structural schematic diagrams of an embodiment of the plate-shaped resistor element of the utility model;

[0017] Figure 2 This is a second structural schematic diagram of an embodiment of a plate-shaped resistor element of the utility model;

[0018] Figure 3 This is a third structural schematic diagram of an embodiment of a plate-shaped resistor element of the utility model;

[0019] Figure 4 for Figure 3 Middle AA section view;

[0020] Figure 5 for Figure 4 A partial enlarged schematic diagram of area B in the middle.

[0021] Reference numerals:

[0022] 1. Metal plate; 11. Stamping part; 12. Mounting opening; 13. Notch; 10. Gap;

[0023] 111, inclined section; 112, bent section;

[0024] 2. Corner protectors. DETAILED DESCRIPTION

[0025] like Figure 1-Figure 3 As shown, the utility model provides a plate-shaped resistor element, including a metal plate 1, on which a plurality of stamping portions 11 are provided, wherein the plurality of stamping portions 11 are arranged side by side in a strip-shaped structure, and the stamping portions 11 protrude from the surface of the metal plate 1, and a gap 10 is formed between the stamping portions 11 and the surface of the metal plate 1.

[0026] Specifically, the plate-shaped resistor element is mainly supported by the metal plate 1, which acts as a resistor. During the processing of the metal plate 1, in order to meet the requirement of achieving the set resistance value, the metal plate 1 is subjected to a stamping process. During the stamping process, a stamping portion 11 of an integral structure is formed on the metal plate 1. The stamping portion 11 protrudes from the surface of the metal plate 1 due to the stamping effect, and a gap 10 is formed between the stamping portion 11 and the surface of the metal plate 1.

[0027] Since no waste is generated in the process of forming the stamping portion 11 when stamping the metal plate 1, the amount of waste generated can be reduced. At the same time, in order to form the gap 10 between the stamping portion 11 and the metal plate 1, the stamping portion 11 will protrude from the surface of the metal plate 1, so that the overall structural strength of the metal plate 1 can be enhanced by the protruding stamping portion 11.

[0028] Furthermore, both ends of the punching portion 11 are fixedly disposed on the metal plate 1 .

[0029] Specifically, during the stamping process of the metal plate 1 , a gap 10 is formed between the stamping portion 11 and the metal plate 1 along the length direction of the stamping portion 11 , while both ends of the stamping portion 11 are still an integral structure with the metal plate 1 .

[0030] In one embodiment, one side of the stamping portion 11 is disposed on the metal plate 1 , and the gap 10 is formed between the other side of the stamping portion 11 and the surface of the metal plate 1 .

[0031] Specifically, according to the design requirements of the resistance value, a single gap 10 can be formed between the stamping portion 11 and the metal plate 1, that is, one side of the stamping portion 11 is still an integral structure with the metal plate 1 and is not separated, while the edge formed on the other side of the stamping portion 11 forms a gap 10 with the surface of the metal plate 1.

[0032] Furthermore, the stamping portion 11 has an inclined section 111 and a bent section 112, wherein the inclined section 111 is disposed on the metal plate 1 and extends obliquely outward, and the bent section 112 is disposed on the inclined section 111 and extends toward the surface of the metal plate 1;

[0033] The gap 10 is formed between the bending section 112 and the metal plate 1 .

[0034] Specifically, in order to improve the structural strength of the stamping portion 11, the cross-section of the stamping portion 11 is a bent structure, that is, it has an inclined section 111 and a bent section 112. The inclined section 111 extends obliquely from the surface of the metal plate 1, and the bent section 112 is bent relative to the inclined section 111 to form a gap with the metal plate 1.

[0035] In another embodiment, gaps 10 are formed between two side portions of the stamping portion 11 and the surface of the metal plate 1 .

[0036] Specifically, according to the requirements of the resistance value, gaps 10 may be formed between the two sides of the stamping portion 11 and the surface of the metal plate 1 , respectively, and the edges of the two sides of the stamping portion 11 are separated from the metal plate 1 .

[0037] Based on the above technical solution, optionally, the plate-shaped resistor element further includes corner guards 2 , the corner guards 2 are respectively provided on both sides of the metal plate 1 , and the stamping portion 11 is arranged between the two corner guards 2 .

[0038] Specifically, after the metal plate 1 is stamped, the corner guards 2 may be wrapped around both sides of the metal plate 1 to protect the edges of the metal plate 1 through the corner guards 2 .

[0039] Based on the above technical solution, optionally, both ends of the metal plate 1 are respectively provided with mounting and fixing parts;

[0040] The installation and fixing portion includes an installation opening 12 formed at the end of the metal plate 1 and / or a notch 13 formed at the end of the metal plate 1 .

[0041] Specifically, since the plate-shaped resistor element needs to be fixedly mounted on an insulating support member during actual use, in order to meet the installation requirements, a mounting opening 12 or a notch 13 may be provided on the metal plate 1 according to the installation requirements.

[0042] The utility model also provides a resistor, comprising an insulating support member and the plate-shaped resistance element in the above embodiment; a plurality of the plate-shaped resistance elements are arranged side by side and are provided on the insulating support member.

[0043] The technical solution of the utility model has the following technical effects compared with the prior art: by using stamping to form a stamping part of an integrated structure on a metal plate, the stamping part is separated from the surface of the metal plate during the forming process, thereby forming a gap between the stamping part and the metal plate to meet the use requirements of the plate-shaped resistor element, and no additional waste is generated during the processing of the stamping part, thereby reducing the amount of waste generated during the overall processing of the metal plate, thereby reducing the amount of waste generated during the processing, and reducing the manufacturing cost of the resistor. In addition, since the stamping part protrudes from the surface of the metal plate after the processing is completed and acts as a reinforcing rib, the overall structural strength of the plate-shaped resistor element is improved to improve the reliability of use.

[0044] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited to this. Any changes or substitutions that can be easily thought of by technicians familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A plate-shaped resistor element, characterized in that: It comprises a metal plate, on which a plurality of stamping parts are arranged side by side in a strip-shaped structure, the stamping parts protrude from the surface of the metal plate, and gaps are formed between the stamping parts and the surface of the metal plate.

2. The plate-shaped resistor element according to claim 1, characterized in that: Both ends of the punching portion are fixedly disposed on the metal plate.

3. The plate-shaped resistor element according to claim 1, wherein: One side of the punching portion is disposed on the metal plate, and the gap is formed between the other side of the punching portion and the surface of the metal plate.

4. The plate-shaped resistor element according to claim 3, characterized in that: The stamping portion has an inclined section and a bent section, the inclined section is arranged on the metal plate and extends outwardly in an inclined manner, and the bent section is arranged on the inclined section and extends toward the surface of the metal plate; Wherein, the gap is formed between the bending section and the metal plate.

5. The plate-shaped resistor element according to claim 1, wherein: Gaps are formed between the two side portions of the punching portion and the surface of the metal plate respectively.

6. The plate-shaped resistor element according to any one of claims 1 to 5, characterized in that: It also includes corner guards, which are respectively arranged on both sides of the metal plate, and the stamping part is arranged between the two corner guards.

7. The plate-shaped resistor element according to any one of claims 1 to 5, characterized in that: The two ends of the metal plate are respectively provided with mounting and fixing parts; The installation and fixing portion includes an installation opening formed at the end of the metal plate and / or a notch formed at the end of the metal plate.

8. A resistor, comprising an insulating support, characterized in that: It also includes a plate-shaped resistor element as described in any one of claims 1 to 7; a plurality of the plate-shaped resistor elements are arranged side by side and disposed on the insulating support member.

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