Fuse base with adjustable breaking capacity for high current testing

Abstract

The present invention discloses a fuse base with adjustable fusing capacity for high current testing, which is connected in series in the main circuit of the high current testing platform. The fuse base includes a main contact, a conductive disk, an insulating support, and a fuse elastic clip, wherein the main contact and the conductive disk are an integrated structure; the two ends of the insulating support are respectively fixedly connected to a conductive disk, the main contact on the conductive disk is connected to a busbar, and the fuse base is connected in series to the two ends of the power output of the primary circuit of the high current testing platform through the main contacts on the two conductive disks; the side of the conductive disk is provided with an extension edge facing the direction opposite to the main contact, the elastic clip is tightly welded to the extension edge of the conductive disk, and the fuse is fixed in the elastic clip. The main contact and the conductive disk of the present invention are designed as one body, so that the main contact and the conductive disk have the same current carrying capacity and are strong and durable. The present invention can realize the adjustment of the fuse fusing capacity, is better suitable for the main circuit of high current testing, and is simple to install and easy to operate.

Description

Technical Field

[0001] The present invention relates to the technical field of high-current fuses, and more particularly to a fuse base with adjustable fusing capacity for high-current testing. Background Art

[0002] Existing fuses are traditional devices with mature technology and advantages such as simple structure and reliable performance. They are widely used in various industries to protect various circuits. The shapes of existing fuse bases vary, including spiral type, plug-in type with indicator function, and intelligent type with automatic fuse replacement. However, they all have one thing in common: they are all fixed-value protection. As a result, fuses with high current levels in the circuit that need to be adjusted cannot be adapted to the base, or the adaptation base requires changing the circuit structure, which is uneconomical and wastes manpower and material resources. Summary of the Invention

[0003] The present invention aims to provide a fuse base with adjustable fusing capacity for high-current testing. By welding multiple elastic clips to a conductive disk and installing an appropriate number of fuses on the elastic clips according to the output current intensity, a single fuse base can be used in adjustable high-current loop testing, thus solving the problem of needing to adjust the fusing capacity in the loop under actual working conditions.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] The present invention provides a fuse base with adjustable fusing capacity for high current testing, comprising a main contact, a conductive disk, an insulating support and an elastic buckle;

[0006] The main contact is located directly above the center of the conductive disk, and the main contact and the conductive disk are an integrated structure;

[0007] The insulating pillar is tightly connected to the conductive disk, and the insulating pillar and the main contact are respectively located on both sides of the conductive disk;

[0008] Both ends of the insulating pillar are fixedly connected to a conductive disk respectively;

[0009] The main contacts on the conductive disk are connected to the busbar, and the fuse base is connected in series to both ends of the power output of the primary circuit of the high current test platform through the main contacts on the two conductive disks;

[0010] The conductive disk is provided with an extension edge, and the extension edge is in a direction opposite to the main contact; the elastic clip is tightly welded to the extension edge of the conductive disk; and the fuse is fixed in the elastic clip.

[0011] Furthermore, the conductive disk and the main contact are an integrated copper column structure.

[0012] Furthermore, the conductive disk is in the shape of a hexagon;

[0013] The six identical side surfaces of the hexagon each extend an edge in a direction opposite to the main contact and are of the same size;

[0014] The elastic buckle is ultrasonically welded on the extension edge.

[0015] Furthermore, two elastic buckles are provided on each extension edge.

[0016] Furthermore, the extension edges are in the shape of a cuboid, and there are gaps between adjacent extension edges.

[0017] Furthermore, one end of the main contact is cylindrical and the other end is rectangular;

[0018] At least two parallel and symmetrical busbar connecting waist holes are opened transversely on the rectangular parallelepiped.

[0019] Furthermore, two-thirds of the main contact's overall length is cylindrical, and one-third of its length is rectangular.

[0020] Furthermore, the insulating pillar is made of epoxy resin material.

[0021] Furthermore, the insulating pillar is made by cutting multiple layers of rings on an epoxy resin cylinder;

[0022] Four screw holes are drilled at both ends of the epoxy resin cylinder;

[0023] The insulating support is tightly connected to the conductive disk by screwing the screw into the screw hole.

[0024] Furthermore, the elastic buckle is in the shape of a five-sixths circle, and an inclined angle is protruded at each end of the opening of the elastic buckle, and the inclined angle is in an outward-facing "X" shape.

[0025] Furthermore, the elastic buckle is made of two layers, the inner ring is made of pure copper material, and the outer ring is made of alloy material.

[0026] The beneficial effects of the present invention are:

[0027] The present invention provides a fuse base with adjustable fusing capacity for high current testing. The conductive disk and the main contact are made of the same material and are integrally manufactured, so that the installation operation is simple and the main contact and the conductive disk have the same current carrying capacity.

[0028] When the present invention is used, a suitable number of fuses can be installed on the elastic clips of the fuse base according to the output current intensity. The higher the high current intensity, the more fuses are installed, and the lower the high current intensity, the fewer fuses are installed. In this way, the fuse breaking capacity in the high current test changes with the high current level of the power supply output, and the adjustment is time-saving and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A top view of a fuse base with adjustable fusing capacity for high current testing according to an embodiment of the present invention;

[0030] Figure 2 This is a structural diagram of a fuse base with main contacts and a conductive disk integrated with each other for high current testing with adjustable fusing capacity according to an embodiment of the present invention;

[0031] Figure 3 This is a structural diagram of the connection between the main contact, the conductive disk, and the insulating support of a fuse base with adjustable fusing capacity for high current testing according to an embodiment of the present invention;

[0032] Figure 4 Schematic diagram of an insulating support of a fuse base with adjustable fusing capacity for high current testing according to an embodiment of the present invention;

[0033] Figure 5 Schematic diagram of an elastic buckle of a fuse base with adjustable fusing capacity for high current testing according to an embodiment of the present invention. DETAILED DESCRIPTION

[0034] The present invention will be further described below. The following examples are only used to more clearly illustrate the technical solution of the present invention and are not intended to limit the scope of protection of the present invention.

[0035] This embodiment provides a fuse base with adjustable fusing capacity for high current testing, which is installed on the primary circuit of a high current testing platform. Figure 1 , including a main contact 4, a conductive disk 2, an insulating support and a fuse elastic buckle.

[0036] See also Figure 2 The main contact is located directly above the center of the conductive disk, and the main contact and the conductive disk are an integrated structure.

[0037] See also Figure 1 、 Figure 3 and Figure 4 The insulating support 5 is tightly connected to the conductive disk 2 through the screw 1, opposite to the main contact 4. And the two ends of the insulating support 5 are respectively fixedly connected to a conductive disk.

[0038] The main contacts on the conductive disk are connected to the busbar, and the fuse base is connected in series to both ends of the power output of the primary circuit of the high current test platform through the main contacts on the two conductive disks.

[0039] The conductive disk is provided with an extension edge, and the elastic clip is welded on the extension edge.

[0040] The fuse is fixed in the elastic buckle.

[0041] As a preferred embodiment, in one embodiment of the present invention, the main contact and the conductive disc are an integrally formed structure made of the same material. Figure 2 As shown, the main contact and conductive disc are integrated into one structure. Because the conductive disc and the main contact are manufactured using the same material and process, installation is simple and the current carrying capacity of the main contact and the conductive disc are consistent. The overall structural design makes the fuse base strong and durable.

[0042] As a preferred implementation manner, in an embodiment of the present invention, the conductive disk and the main contact are formed integrally as a copper column.

[0043] As a preferred embodiment, in one embodiment of the present invention, the conductive disk is a hexagon and an extension edge is extended from six identical sides, such as Figure 2 As shown, the elastic buckle is welded on the extension edge. There is a gap between adjacent extension edges.

[0044] It should be noted that, see Figure 2 , extending along 3 to form a rectangular parallelepiped, and facing in the opposite direction to the main contact.

[0045] As a preferred implementation, in one embodiment of the present invention, the main contacts adopt a waist hole design, and the connection busbar is highly operable and firm.

[0046] As a preferred embodiment, in one embodiment of the present invention, one end of the main contact is cylindrical and the other end is rectangular, and at least two parallel and symmetrical busbar connection waist holes are opened on the rectangular parallelepiped. Figure 2 and Figure 3 .

[0047] As a preferred implementation manner, in an embodiment of the present invention, two-thirds of the main contact is cylindrical and one-third is rectangular.

[0048] As a preferred implementation, in an embodiment of the present invention, the insulating pillar is made of epoxy resin material.

[0049] See also Figure 4 The epoxy resin cylinder is cut into multiple layers of rings. This ring shape increases the distance that leakage current can "climb" along the surface, thereby increasing the resistance of the insulating support and reducing the risk of leakage. Four screw holes are drilled at both ends of the cylinder. Screws are screwed into the holes to tightly connect the integral main contact and conductive disk to the insulating support, making it easy to operate and install.

[0050] As a preferred embodiment, in one embodiment of the present invention, each conductive disc extension has two elastic clips, and the fuse base has four elastic clips on one side. This ensures a secure fuse lock and provides high current capacity. Each elastic clip is ultrasonically welded to the conductive disc extension, ensuring a tight surface connection.

[0051] As a preferred embodiment, in one embodiment of the present invention, the elastic buckle is in the shape of a five-sixths circle, and the two ends of the elastic buckle opening each protrude at an inclined angle, and the inclined angle of the opening is in an outward eight-shaped shape. Figure 5 .

[0052] As a preferred embodiment, in one embodiment of the present invention, each elastic buckle is a multi-layer design. The inner ring 6 of the elastic buckle is made of pure copper, and the outer ring 7 of the elastic buckle is made of alloy material. Figure 5 The inner ring has excellent electrical conductivity, while the outer ring has better rebound plasticity, which can tighten the fuse and make the inner ring fit tightly with the fuse.

[0053] During use, the staff can install the fuse on the elastic clip of the fuse base according to the output current intensity. The higher the high current intensity, the more fuses need to be installed. On the contrary, the lower the high current intensity, the fewer fuses need to be installed. In this way, the fuse breaking capacity in the high current test changes with the high current level of the power supply output, and the adjustment is time-saving and easy to operate.

[0054] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A fuse base with adjustable breaking capacity for high current testing, characterized in that: It includes main contacts, conductive discs, insulating pillars and elastic buckles; The main contact is located directly above the center of the conductive disk, and the main contact and the conductive disk are an integrated structure; The insulating pillar is tightly connected to the conductive disk, and the insulating pillar and the main contact are respectively located on both sides of the conductive disk; Both ends of the insulating pillar are fixedly connected to a conductive disk respectively; The main contacts on the conductive disk are connected to the busbar, and the fuse base is connected in series to both ends of the power output of the primary circuit of the high current test platform through the main contacts on the two conductive disks; The conductive disk is provided with an extension edge, and the extension edge is in a direction opposite to the main contact; the elastic clip is tightly welded to the extension edge of the conductive disk; and the fuse is fixed in the elastic clip.

2. The fuse base with adjustable fusing capacity for high current testing according to claim 1, characterized in that: The conductive disk and the main contact are an integrated copper column structure.

3. The fuse base with adjustable fusing capacity for high current testing according to claim 1, characterized in that: The conductive disk is hexagonal; The six identical side surfaces of the hexagon each extend an edge in a direction opposite to the main contact and are of the same size; The elastic buckle is ultrasonically welded on the extension edge.

4. The fuse base with adjustable fusing capacity for high current testing according to claim 3, characterized in that: Two elastic buckles are provided on each extension edge.

5. The fuse base with adjustable fusing capacity for high current testing according to claim 3, characterized in that: The extension edges are in the shape of a cuboid, and there are gaps between adjacent extension edges.

6. The fuse base with adjustable fusing capacity for high current testing according to claim 1, characterized in that: One end of the main contact is cylindrical, and the other end is rectangular; At least two parallel and symmetrical busbar connecting waist holes are opened transversely on the rectangular parallelepiped.

7. The fuse base with adjustable fusing capacity for high current testing according to claim 6, characterized in that: Two-thirds of the main contact's overall length is cylindrical, and one-third of its length is rectangular.

8. The fuse base with adjustable fusing capacity for high current testing according to claim 1, characterized in that: The insulating pillar is made of epoxy resin material.

9. The fuse base with adjustable fusing capacity for high current testing according to claim 1, characterized in that: The insulating pillar is made by cutting multiple layers of rings on an epoxy resin cylinder; Four screw holes are drilled at both ends of the epoxy resin cylinder; The insulating support is tightly connected to the conductive disk by screwing the screw into the screw hole.

10. The fuse base with adjustable fusing capacity for high current testing according to claim 1, characterized in that: The elastic buckle is in the shape of a five-sixths circle, and an inclined angle is protruded at each end of the elastic buckle opening, and the inclined angle is in an outward-facing "X" shape.

11. The fuse base with adjustable fusing capacity for high current testing according to claim 10, characterized in that: The elastic buckle is made of two layers, the inner ring is made of pure copper and the outer ring is made of alloy material.

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