JP cabinet fusible core clamping structure
By incorporating conductive sheets and compression springs into the JP cabinet's molten core clamping structure, the problem of small contact area between the molten material and the base is solved, achieving rapid current transmission and timely molten material response.
Patent Information
- Application Number
- CN202522157860.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-13
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2035-10-13
AI Technical Summary
In the existing technology, the contact area between the melt and the base is small, resulting in a slow current flow and the melt not responding in time when the circuit is overloaded.
A JP cabinet melt core clamping structure was designed. By setting conductive plates and contact rods between the melt and the base, the conductive plates are clamped on both sides of the contact rods, and compression springs are used to increase the contact tightness between the conductive plates and the melt, thereby improving the conductive area and current transmission speed.
This improves the contact area and tightness between the conductive sheet and the contact rod, ensuring that current can pass through quickly and that the fusible element can react promptly and cut off the fault current when the circuit is overloaded.
Smart Images
Figure CN223552492U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of JP cabinet technology, specifically to a JP cabinet core clamping structure. Background Technology
[0002] The fuse in the JP cabinet (integrated distribution box) is mainly used to quickly cut off the fault current when the circuit is overloaded or short-circuited, so as to protect the safe operation of the power distribution system and connected equipment. The fuse includes a fuse element and a base, and there is a conductive connection between the fuse element and the base. In the existing technology, due to the small contact area between the fuse element and the base, the current flows slowly, which ultimately causes the fuse element to fail to react in time when the circuit is overloaded. Utility Model Content
[0003] Therefore, the technical problem to be solved by this utility model is to overcome the defect that the contact area between the melt and the base is small in the prior art, which leads to a slow current flow and ultimately causes the melt to be unable to react in time when the circuit is overloaded. Thus, a JP cabinet melt core clamping structure with fast conductivity is provided.
[0004] Therefore, this utility model provides a JP cabinet molten core clamping structure, including a base and a molten body fixed on the base. The upper and lower ends of the molten body are provided with a conductive connection structure between the base and the upper and lower ends. The conductive connection structure includes a conductive sheet disposed on one side of the molten body or the base and a contact rod disposed on the other side and in contact with the conductive sheet. The conductive sheet is clamped on both sides of the contact rod.
[0005] Furthermore: the conductive sheet is disposed on the base, the contact rod is located on the melt, and a compression spring is disposed on the side of the conductive sheet facing away from the melt. The compression spring abuts against the conductive sheet to drive the conductive sheet to deform toward the side closer to the contact rod.
[0006] Furthermore: the conductive sheet includes a first contact sheet, a second contact sheet, and a connecting sheet for connecting the two, respectively clamped on both sides of the contact rod. There is a receiving groove between the first contact sheet and the second contact sheet to accommodate the contact rod. The connecting sheet has an extension sheet on the side facing away from the contact rod that connects to an external copper busbar. The connecting sheet and the extension sheet are arranged in an "L" shape.
[0007] Furthermore: the compression spring includes a first bent end abutting against the side of the first contact piece, a second bent end abutting against the side of the second contact piece, and a connecting end disposed between the two, wherein the first bent end, the second bent end, and the connecting end are integrally formed.
[0008] Furthermore, the first contact piece and the second contact piece are respectively provided with a first guide slope and a second guide slope, and the first guide slope and the second guide slope form a funnel-shaped opening for the contact rod to be inserted.
[0009] The technical solution of this utility model has the following advantages:
[0010] 1. The present invention provides a JP cabinet fuse core clamping structure, wherein conductive sheets are clamped on both sides of the contact rod. The conductive sheets have a large area, so the contact area between the contact rod and the conductive sheets is large. The contact positions between the contact rod and the conductive sheets on both sides can transmit current and have good conductivity. When the current flow rate increases, the fuse can react in time and quickly cut off the fault current when the circuit is overloaded.
[0011] 2. The JP cabinet molten core clamping structure provided by this utility model, in order to increase the tightness of the connection between the conductive sheet and the molten body and ensure that the current can pass smoothly, a compression spring is set on the side of the conductive sheet facing away from the molten body. The compression spring uses its own elastic restoring force to apply a compression force to the conductive sheet to deform towards the molten body, thereby making the conductive sheet and the contact rod fit more tightly. Attached Figure Description
[0012] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the connection structure between the melt and the base;
[0014] Figure 2 This is a schematic diagram of the front structure of the melt and the base;
[0015] Figure 3 This is a schematic diagram of the connection structure between the conductive sheet and the compression spring.
[0016] Explanation of reference numerals in the attached figures:
[0017] 1. Base; 2. Melt; 3. Conductive sheet; 31. First contact sheet; 32. Second contact sheet; 33. Connecting sheet; 36. Extension sheet; 4. Contact rod; 5. Compression spring; 51. First bent end; 52. Second bent end; 53. Connecting end; 6. Receiving groove; 7. First guide slope; 8. Second guide slope; 9. Opening. Detailed Implementation
[0018] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0021] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0022] Example
[0023] This embodiment provides a JP cabinet fused core clamping structure, including a base 1 and a fused body 2 fixed on the base 1. The upper and lower ends of the fused body 2 are provided with conductive connection structures between them and the base 1. The conductive connection structure includes a conductive sheet 3 disposed on one side of the fused body 2 or the base 1 and a contact rod 4 disposed on the other side and in contact with the conductive sheet 3. The conductive sheet 3 is clamped on both sides of the contact rod 4.
[0024] The specific improvements mentioned above are as follows: Figure 1 and Figure 3As shown, the conductive sheet 3 is clamped on both sides of the contact rod 4. The conductive sheet 3 has a large area, so the contact area between the contact rod 4 and the conductive sheet 3 is large. The contact positions of the contact rod 4 and the conductive sheets 3 on both sides can transmit current and have good conductivity. When the current speed increases, when the fuse 2 is overloaded in the circuit, the fuse 2 can react in time and quickly cut off the fault current.
[0025] Based on the above embodiments: the conductive sheet 3 is disposed on the base 1, the contact rod 4 is located on the melt 2, and a compression spring 5 is disposed on the side of the conductive sheet 3 facing away from the melt 2. The compression spring 5 abuts against the conductive sheet 3 to drive the conductive sheet 3 to deform toward the side closer to the contact rod 4.
[0026] The specific improvements mentioned above are as follows: Figure 3 As shown, in order to increase the tightness of the connection between the conductive sheet 3 and the melt 2 and ensure that the current can pass through smoothly, a compression spring 5 is provided on the side of the conductive sheet 3 facing away from the melt 2. The compression spring 5 uses its own elastic restoring force to apply a compression force to the conductive sheet 3, pushing the conductive sheet 3 to deform towards the melt 2, so that the conductive sheet 3 and the contact rod 4 fit more tightly.
[0027] Based on the above embodiments: the conductive sheet 3 includes a first contact sheet 31, a second contact sheet 32 respectively clamped on both sides of the contact rod 4, and a connecting sheet 33 for connecting the two. There is a receiving groove 6 between the first contact sheet 31 and the second contact sheet 32 to accommodate the contact rod 4. The side of the connecting sheet 33 facing away from the contact rod 4 is provided with an extension sheet 36 connected to an external copper busbar. The connecting sheet 33 and the extension sheet 36 are arranged in an "L" shape.
[0028] The specific improvements mentioned above are as follows: Figure 3 As shown, the conductive sheet 3 includes a first contact sheet 31, a second contact sheet 32, and a connecting sheet 33 for connecting the two. All three are formed from a single copper sheet. During processing, the first contact sheet 31, the second contact sheet 32, and the connecting sheet 33 are cut out by a machine. Then, the first contact sheet 31 and the second contact sheet 32 are bent at 90° to effectively increase the contact area between the first contact sheet 31 and the second contact sheet 32 and the contact rod 4. An extension piece 36 is provided at the position where the connecting sheet 33 connects to the external copper busbar. The extension piece 36 is connected to the copper busbar by fastening pins.
[0029] Based on the above embodiments: the compression spring 5 includes a first bent end 51 abutting against the side of the first contact piece 31, a second bent end 52 abutting against the side of the second contact piece 32, and a connecting end 53 disposed between the two, wherein the first bent end 51, the second bent end 52 and the connecting end 53 are integrally formed.
[0030] The specific improvements mentioned above are as follows: Figure 3 As shown, the compression spring 5 includes a first bent end 51 abutting against the side of the first bent piece, a second bent end 52 abutting against the side of the second bent piece, and a connecting end 53 connecting the first bent end 51 and the second bent end 52. The first bent end 51, the second bent end 52 and the connecting end 53 are integrally formed. The first bent end 51 and the second bent end 52 are welded to the first contact piece 31 and the second contact piece 32, respectively.
[0031] Based on the above embodiments: the first contact piece 31 and the second contact piece 32 are respectively provided with a first guide slope 7 and a second guide slope 8, and the first guide slope 7 and the second guide slope 8 form a trumpet-shaped opening 9 for the contact rod 4 to be inserted.
[0032] The specific improvements mentioned above are as follows: Figure 3 As shown, the first contact piece 31 and the second contact piece 32 are provided with a first guide slope 7 and a second guide slope 8 at the opening 9 where the contact rod 4 is inserted. The first guide slope 7 and the second guide slope 8 extend from the receiving groove 6 to both sides to form a trumpet-shaped opening 9, thereby effectively guiding the contact rod 4 to be inserted into the receiving groove 6.
[0033] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A JP cabinet core clamping structure, characterized in that: It includes a base (1) and a melt (2) fixed on the base (1). The upper and lower ends of the melt (2) are provided with a conductive connection structure between them and the base (1). The conductive connection structure includes a conductive sheet (3) disposed on one side of the melt (2) or the base (1) and a contact rod (4) disposed on the other side and in contact with the conductive sheet (3). The conductive sheet (3) is clamped on both sides of the contact rod (4).
2. The JP cabinet core clamping structure according to claim 1, characterized in that: The conductive sheet (3) is disposed on the base (1), the contact rod (4) is located on the melt (2), and a compression spring (5) is disposed on the side of the conductive sheet (3) facing away from the melt (2). The compression spring (5) abuts against the conductive sheet (3) to drive the conductive sheet (3) to deform toward the side closer to the contact rod (4).
3. The JP cabinet core clamping structure according to claim 2, characterized in that: The conductive sheet (3) includes a first contact sheet (31), a second contact sheet (32) respectively clamped on both sides of the contact rod (4), and a connecting sheet (33) for connecting the two. There is a receiving groove (6) between the first contact sheet (31) and the second contact sheet (32) for accommodating the contact rod (4). The connecting sheet (33) has an extension sheet (36) connected to an external copper busbar on the side facing away from the contact rod (4). The connecting sheet (33) and the extension sheet (36) are arranged in an "L" shape.
4. The JP cabinet core clamping structure according to claim 2, characterized in that: The compression spring (5) includes a first bent end (51) abutting against the side of the first contact piece (31), a second bent end (52) abutting against the side of the second contact piece (32), and a connecting end (53) disposed between the two. The first bent end (51), the second bent end (52), and the connecting end (53) are integrally formed.
5. A JP cabinet core clamping structure according to claim 3 or 4, characterized in that: The first contact piece (31) and the second contact piece (32) are respectively provided with a first guide slope (7) and a second guide slope (8), and the first guide slope (7) and the second guide slope (8) form a trumpet-shaped opening (9) for the contact rod (4) to be inserted.