Busbar electric connection wire clamp

Abstract

A busbar electric connecting wire clamp comprises a wire clamp body and clamping plates, the clamping plates are fixedly connected to the lower portions of the two sides of the wire clamp body through first bolt pairs, a groove is formed in the lower end face of the wire clamp body in the line direction, an elastic contact piece is fixed in the groove, and the lower end face of the elastic contact piece protrudes out of the groove; the wire clamp body is arranged above the busbar, the wire clamp body is clamped and fixed on the top of the busbar through the clamping plate, and the lower end face of the elastic contact piece abuts against the top of the busbar.

Description

Technical Field

[0001] This utility model belongs to the field of rigid contact wire technology, and in particular relates to a busbar connection clamp. Background Technology

[0002] Busbar electrical connection clamps are crucial components of rigid contact network power supply systems, ensuring conductive connections between cables and or between cables and busbars. Existing busbar electrical connection clamps (CN204020606U) suffer from poor contact and burning during long-term operation due to busbar vibration and loosening fasteners. This damage can even lead to busbar damage, requiring replacement of not only the clamp but also the entire busbar, resulting in significant economic losses and high operating and maintenance costs. Summary of the Invention

[0003] This utility model provides a busbar connection cable to overcome the shortcomings of the prior art.

[0004] The technical solution adopted by this utility model is as follows: a busbar electrical connection clamp, including a clamp body and a clamp plate. The clamp plate is fixedly connected to the lower sides of the clamp body by a first bolt pair. The lower end face of the clamp body has a groove along the line direction. An elastic contact is fixed in the groove, and the lower end face of the elastic contact protrudes from the groove. The clamp body is set above the busbar, and the clamp plate clamps and fixes the clamp body to the top of the busbar, and makes the lower end face of the elastic contact abut against the top of the busbar.

[0005] Two grooves are provided.

[0006] The elastic contact element is a strip structure, and its two sides are riveted to the groove.

[0007] The elastic contact element is a spring sheet or a watch strap finger.

[0008] The lower end face of the clamp body is provided with a busbar positioning groove and a clamp plate limiting groove along the line direction. The groove is located on the bottom surface of the busbar positioning groove, and the clamp plate limiting groove is located on both sides of the busbar positioning groove. The positioning boss on the outer side of the clamp plate is inserted into the clamp plate limiting groove.

[0009] The lower end face of the clamp is provided with an anti-rotation groove along the line direction, and the bolt head of the first bolt pair is recessed in the anti-rotation groove.

[0010] The clamp body and the clamp plate are vertically provided with several connecting holes, and the lower end of the connecting holes is located in the anti-rotation groove. The first bolt pair passes through the connecting holes to fix the clamp plate to the bottom of the clamp body.

[0011] At least one connection hole should be reserved, through which a second bolt is passed to securely connect to the cable terminal.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model ensures reliable contact between the busbar and the electrical connection clamp by setting an elastic contact element between the online clamp body and the top of the busbar, thus preventing arc burn-out, extending the service life of the busbar and the electrical connection clamp, and reducing operation and maintenance costs.

[0014] 2. The elastic contact of this utility model provides reliable contact force through its own elasticity, ensuring that the lower end face of the elastic contact is pressed against the top of the busbar, avoiding poor contact and arcing, achieving effective electrical transition and improving current carrying capacity.

[0015] 3. This utility model is easy to disassemble during maintenance and can avoid the elastic contact parts scratching the top surface of the busbar. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the wire clamp body structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the clamping plate structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the utility model in use. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in detail with reference to specific embodiments.

[0021] A busbar electrical connection clamp includes a clamp body 1 and a clamp plate 2. The clamp plate 2 is fixedly connected to the lower sides of the clamp body 1 by a first bolt pair 4. The lower end face of the clamp body 1 has a groove 1-1 formed along the line direction. An elastic contact 3 is fixed in the groove 1-1, and the lower end face of the elastic contact 3 protrudes from the groove 1-1. The clamp body 1 is disposed above the busbar 7. The clamp plate 2 clamps and fixes the clamp body 1 to the top of the busbar 7, and the lower end face of the elastic contact 3 abuts against the top of the busbar 7.

[0022] In one embodiment, two grooves 1-1 are provided.

[0023] In one embodiment, the elastic contact 3 is a strip structure, and its two sides are riveted to the groove 1-1. The elastic contact 3 is a spring sheet or a watch strap finger. The surfaces of both the spring sheet and the watch strap finger are silver-plated.

[0024] In one embodiment, the lower end face of the clamp body 1 is provided with a busbar positioning groove 1-2 and a clamp plate limiting groove 1-3 along the line direction. The groove 1-1 is located on the bottom surface of the busbar positioning groove 1-2, and the clamp plate limiting groove 1-3 is located on both sides of the busbar positioning groove 1-2. The positioning boss 2-1 on the outer side of the clamp plate 2 is inserted into the clamp plate limiting groove 1-3.

[0025] In one embodiment, the lower end face of the clamping plate 2 is provided with an anti-rotation groove 2-2 along the line direction, and the bolt head of the first bolt pair 4 is recessed in the anti-rotation groove 2-2.

[0026] In one embodiment, the clamp body 1 and the clamp plate 2 are vertically provided with a plurality of connecting holes 5, and the lower port of the connecting hole 5 is located in the anti-rotation groove 2-2. The first bolt pair 4 passes through the connecting hole 5 to fix the clamp plate 2 to the lower part of the clamp body 1.

[0027] In one embodiment, at least one connection hole 5 is reserved, through which a second bolt pair 8 passes and is fixedly connected to the terminal 6 of the cable 9.

[0028] In the above embodiments, the clamp body 1 and the clamp plate 2 are both made of aluminum alloy profiles, and the elastic contact 3 is made of copper alloy.

[0029] In use, the busbar positioning groove 1-2 at the lower end of the clamp body 1 is snapped into the top of the busbar, and is clamped and fixed to the top of the busbar 7 by the first bolt pair 4 along with the clamp plates 2 on both sides. The terminal 6 is placed above the clamp body 1, and is fixedly connected to the clamp body 1 by the second bolt pair 8 to complete the electrical connection, thereby enabling current conduction between the busbars through the cable. During line operation, the spring plate or watch strap contact finger provides a certain contact force through its own elasticity, ensuring that the busbar and the electrical connection clamp can still make reliable contact under long-term fatigue vibration, avoiding poor contact and arc burning, achieving effective electrical transition, increasing current carrying capacity, and extending the service life of the busbar 7 and the electrical connection clamp, reducing operation and maintenance costs. After a period of operation, the protruding part of the elastic contact 3 will embed into the top of the busbar. During maintenance and disassembly, the first bolt pair 4 and the second bolt pair 8 are removed, the clamp body 1 is separated from the clamp plate 2, and the clamp body 1 is removed from the top of the busbar, avoiding scratches on the top of the busbar.

[0030] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of implementation of the present utility model. Therefore, all equivalent variations made based on the content described in the claims of the present utility model should be included within the scope of the claims of the present utility model.

Claims

1. A busway electrical connection clamp characterized by: The device includes a clamp body (1) and a clamp plate (2). The clamp plate (2) is fixedly connected to the lower sides of the clamp body (1) by a first bolt pair (4). The lower end face of the clamp body (1) has a groove (1-1) along the line direction. An elastic contact (3) is fixed in the groove (1-1), and the lower end face of the elastic contact (3) protrudes from the groove (1-1). The clamp body (1) is set above the busbar (7). The clamp plate (2) clamps and fixes the clamp body (1) to the top of the busbar (7), and the lower end face of the elastic contact (3) abuts against the top of the busbar (7).

2. An electrical bus connector as defined in claim 1, wherein: Two grooves (1-1) are provided.

3. An electrical bus connector as defined in claim 2, wherein: The elastic contact (3) is a strip structure, and its two sides are riveted to the groove (1-1).

4. An electrical bus connector as defined in claim 3, wherein: The elastic contact (3) is a spring sheet or a watch strap finger.

5. An electrical bus connector as claimed in claim 1 or 2 or 3, wherein: The lower end face of the clamp body (1) is provided with a busbar positioning groove (1-2) and a clamp plate limiting groove (1-3) along the line direction. The groove (1-1) is located on the bottom surface of the busbar positioning groove (1-2), and the clamp plate limiting groove (1-3) is located on both sides of the busbar positioning groove (1-2). The positioning boss (2-1) on the outer side of the clamp plate (2) is inserted into the clamp plate limiting groove (1-3).

6. An electrical bus connector as defined in claim 5, wherein: The lower end face of the clamp (2) is provided with an anti-rotation groove (2-2) along the line direction, and the bolt head of the first bolt pair (4) is sunk into the anti-rotation groove (2-2).

7. An electrical bus connector as defined in claim 6 wherein: The clamp body (1) and clamp plate (2) are vertically provided with several connecting holes (5), and the lower port of the connecting hole (5) is located in the anti-rotation groove (2-2). The first bolt pair (4) passes through the connecting hole (5) to fix the clamp plate (2) below the clamp body (1).

8. An electrical bus connector as defined in claim 6, wherein: At least one connection hole (5) is reserved, and the second bolt pair (8) passes through the connection hole to be fixedly connected to the terminal (6) of the cable (9).

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