Safety device for a high-voltage control box

Abstract

The utility model discloses a kind of safety equipment of high-voltage control box, including leakage sensor, support, the leakage sensor front surface lower end is equipped with terminal, the terminal outside is equipped with protective shell, the support is positioned with the lower end of leakage sensor and is provided with limiting structure, the limiting structure includes limit seat, fixed block, trapezoidal sliding slot, trapezoidal slide, connecting rod, reset spring, rectangular slot, No. The utility model is positioned with a kind of safety equipment of high-voltage control box, can when installing leakage sensor, pull fixed block, make rectangular clamping block retract into rectangular sliding hole, then the rectangular plug block of leakage sensor lower surface fixed installation is inserted into the rectangular insertion slot of support upper surface opening, release fixed block again, under the action of reset spring elasticity, drive rectangular clamping block insertion rectangular card slot, installation can be completed.

Description

Technical Field

[0001] This utility model relates to the technical field of protection devices for high-voltage control boxes, and in particular to a safety device for high-voltage control boxes. Background Technology

[0002] The high-voltage control box distributes and outputs the high-voltage electricity from the power battery to various branch electrical devices, such as motor controllers, drive motors, electric air conditioning compressors, and PTC heaters. The safety devices in the high-voltage control box are mainly used to ensure its safe operation in high-voltage environments and prevent damage to equipment and personnel caused by overcurrent, overvoltage, and leakage. Therefore, a leakage current sensor is installed inside the high-voltage control box to monitor the leakage current of the high-voltage circuit in real time. Once a leakage current phenomenon is detected, the protection mechanism will be triggered immediately to cut off the high-voltage power supply to ensure the safety of personnel and equipment. However, the leakage current sensors currently used require tools to tighten multiple bolts to install them on the internal bracket or shell of the high-voltage control box, resulting in low installation efficiency. Utility Model Content

[0003] The main objective of this invention is to provide a safety device for a high-voltage control box, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A safety device for a high-voltage control box includes a leakage current sensor and a bracket. The lower end of the front surface of the leakage current sensor is provided with a wiring terminal, and the wiring terminal is provided with a protective shell. The bracket and the lower end of the leakage current sensor are provided with a limit structure. The limit structure includes a limit seat, a fixing block, a trapezoidal slide groove, a trapezoidal slide bar, a connecting rod, a return spring, a rectangular groove, a first wedge block, a convex slide bar, a second wedge block, a convex slide groove, a rectangular locking block, a rectangular slide groove, a rectangular slider, a rectangular slide hole, a rectangular slot, a rectangular insert block, and a rectangular locking groove. The limit seat is fixedly installed on the front surface of the bracket.

[0006] In a further preferred embodiment, the limiting seat has a rectangular groove inside, and a trapezoidal sliding groove is formed on the front surface of the rectangular groove, with a trapezoidal slide bar slidably installed inside the trapezoidal sliding groove.

[0007] In a further preferred embodiment, a connecting rod is fixedly installed on one end surface of the trapezoidal slide, a return spring is sleeved on one end of the trapezoidal slide on the outer surface of the connecting rod, and a fixing block is fixedly installed on one end surface of the connecting rod.

[0008] More preferably, a first wedge block is fixedly installed on the rear surface of the trapezoidal slide, a convex slide is fixedly installed on the inclined surface of the first wedge block, and a second wedge block is fixedly installed on the front surface of the rectangular block.

[0009] More preferably, the inclined surface of the second wedge block is provided with a convex groove, a convex slide bar is slidably installed in the convex groove, and rectangular sliders are fixedly installed at the front ends of both ends of the rectangular block.

[0010] More preferably, rectangular sliding grooves are provided on both ends of the rectangular groove near the rear end, and rectangular sliders are slidably installed in the rectangular sliding grooves. A rectangular sliding hole is provided on the front surface of the bracket, and a rectangular locking block is slidably installed in the rectangular sliding hole.

[0011] More preferably, the upper surface of the bracket is provided with a rectangular slot, the lower surface of the leakage current sensor is fixedly installed with a rectangular plug, the front surface of the rectangular plug is provided with a rectangular slot, and the rectangular plug is inserted into the rectangular slot.

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

[0013] In this utility model, by setting a limiting structure, when installing the leakage current sensor, the fixing block is pulled to make the rectangular card block retract into the rectangular sliding hole, and then the rectangular insert block fixedly installed on the lower surface of the leakage current sensor is inserted into the rectangular slot opened on the upper surface of the bracket. Then the fixing block is released, and at this time, under the action of the return spring, the rectangular card block is driven to insert into the rectangular slot, thus completing the installation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a safety device for a high-voltage control box according to this utility model;

[0015] Figure 2 This is a cross-sectional view of a safety device for a high-voltage control box according to this utility model;

[0016] Figure 3 This utility model relates to a safety device for a high-voltage control box. Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 This utility model relates to a safety device for a high-voltage control box. Figure 2 Enlarged view of section B in the middle.

[0018] In the diagram: 1. Leakage sensor; 2. Wiring terminal; 3. Protective shell; 4. Bracket; 5. Limiting structure; 501. Limiting seat; 502. Fixing block; 503. Trapezoidal groove; 504. Trapezoidal slide bar; 505. Connecting rod; 506. Return spring; 507. Rectangular groove; 508. Wedge block No. 1; 509. Convex slide bar; 510. Wedge block No. 2; 511. Convex groove; 512. Rectangular locking block; 513. Rectangular groove; 514. Rectangular slider; 515. Rectangular sliding hole; 516. Rectangular slot; 517. Rectangular insert block; 518. Rectangular slot. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] Participation Figure 1-4 As shown, a safety device for a high-voltage control box includes a leakage current sensor 1 and a bracket 4. The lower end of the front surface of the leakage current sensor 1 is provided with a wiring terminal 2, and the wiring terminal 2 is provided with a protective shell 3. The bracket 4 and the lower end of the leakage current sensor 1 are provided with a limit structure 5. The limit structure 5 includes a limit seat 501, a fixing block 502, a trapezoidal slide groove 503, a trapezoidal slide bar 504, a connecting rod 505, a reset spring 506, a rectangular groove 507, a first wedge block 508, a convex slide bar 509, a second wedge block 510, a convex slide groove 511, a rectangular locking block 512, a rectangular slide groove 513, a rectangular slider 514, a rectangular sliding hole 515, a rectangular slot 516, a rectangular insert block 517, and a rectangular locking groove 518. The limit seat 501 is fixedly installed on the front surface of the bracket 4.

[0021] Specifically, the wiring terminal 2 located at the lower end of the front surface of the leakage current sensor 1 and the protective shell 3 outside the wiring terminal 2 can protect the wiring terminal 2 and prevent it from being damaged.

[0022] Participation Figure 2-4 As shown, a rectangular groove 507 is provided inside the limiting seat 501, and a trapezoidal slide groove 503 is provided on the front surface of the rectangular groove 507. A trapezoidal slide bar 504 is slidably installed in the trapezoidal slide groove 503. A connecting rod 505 is fixedly installed on one end surface of the trapezoidal slide groove 503. A return spring 506 is sleeved on one end of the trapezoidal slide bar 504 on the outer surface of the connecting rod 505. A fixing block 502 is fixedly installed on one end surface of the connecting rod 505.

[0023] Specifically, the fixed block 502 fixedly installed on one end of the connecting rod 505 and the trapezoidal slide bar 504 slidably installed in the trapezoidal slide groove 503 can pull the fixed block 502, causing the trapezoidal slide bar 504 fixedly installed on the other end of the connecting rod 505 to slide in the trapezoidal slide groove 503 and compress the return spring 506.

[0024] Participation Figure 2-4 As shown, a first wedge block 508 is fixedly installed on the rear surface of the trapezoidal slider 504, a convex slider 509 is fixedly installed on the inclined surface of the first wedge block 508, a second wedge block 510 is fixedly installed on the front surface of the rectangular block 512, a convex groove 511 is opened on the inclined surface of the second wedge block 510, and a convex slider 509 is slidably installed in the convex groove 511. Rectangular sliders 514 are fixedly installed on the front ends of both ends of the rectangular block 512.

[0025] Specifically, the first wedge block 508 fixedly installed on the rear surface of the trapezoidal slide bar 504 and the convex slide bar 509 slidably installed in the convex slide groove 511 can drive the first wedge block 508 to move when the trapezoidal slide bar 504 slides, so that the convex slide bar 509 fixedly installed on the inclined surface of the first wedge block 508 slides in the convex slide groove 511, thereby driving the second wedge block 510 to move forward, and driving the rectangular locking block 512 to move forward.

[0026] Participation Figure 2-4 As shown, rectangular grooves 513 are provided on both ends of the rectangular groove 507 near the rear end. A rectangular slider 514 is slidably installed in the rectangular groove 513. A rectangular sliding hole 515 is provided on the front surface of the bracket 4. A rectangular locking block 512 is slidably installed in the rectangular sliding hole 515. A rectangular slot 516 is provided on the upper surface of the bracket 4. A rectangular plug 517 is fixedly installed on the lower surface of the leakage current sensor 1. A rectangular slot 518 is provided on the front surface of the rectangular plug 517. The rectangular plug 517 is inserted into the rectangular slot 516.

[0027] Specifically, the rectangular slider 514, which is slidably installed in the rectangular groove 513, and the rectangular block 512, which is slidably installed in the rectangular hole 515, can drive the rectangular slider 514, which is fixedly installed at the front end of both ends of the rectangular block 512, to slide in the rectangular groove 513 when the rectangular block 512 moves forward, until the rectangular block 512 disengages from the rectangular slot 518 opened on the front surface of the rectangular groove 507 and retracts into the rectangular hole 515.

[0028] It should be noted that this utility model is a safety device for a high-voltage control box. When the leakage current sensor 1 needs to be installed, the fixing block 502 is pulled, causing the fixing block 502 to drive the trapezoidal slide bar 504 fixedly installed on the other end surface of the connecting rod 505 to slide in the trapezoidal slide groove 503, and to squeeze the return spring 506. At the same time, it drives the first wedge block 508 to move to one end, causing the convex slide bar 509 fixedly installed on the inclined surface of the first wedge block 508 to slide in the convex slide groove 511, thereby driving the second wedge block 510 to move towards... The rectangular block 512 moves forward, causing the rectangular sliders 514, which are fixedly installed at the front ends of both ends of the rectangular block 512, to slide within the rectangular slide groove 513 until the rectangular block 512 retracts into the rectangular slide hole 515. Then, the rectangular insert 517, which is fixedly installed on the lower surface of the leakage current sensor 1, is inserted into the rectangular slot 516 opened on the upper surface of the bracket 4. Then, the fixing block 502 is released, and under the action of the spring force of the reset spring 506, the rectangular block 512 is inserted into the rectangular slot 518, thus completing the installation.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A safety device for a high-voltage control box, characterized in that, The device includes a leakage current sensor (1) and a bracket (4). The lower end of the front surface of the leakage current sensor (1) is provided with a wiring terminal (2). The wiring terminal (2) is provided with a protective shell (3). The bracket (4) and the lower end of the leakage current sensor (1) are provided with a limiting structure (5). The limiting structure (5) includes a limiting seat (501), a fixing block (502), a trapezoidal slide groove (503), a trapezoidal slide bar (504), a connecting rod (505), a reset spring (506), a rectangular groove (507), a first wedge block (508), a convex slide bar (509), a second wedge block (510), a convex slide groove (511), a rectangular locking block (512), a rectangular slide groove (513), a rectangular slider (514), a rectangular sliding hole (515), a rectangular slot (516), a rectangular insert block (517), and a rectangular locking groove (518). The limiting seat (501) is fixedly installed on the front surface of the bracket (4).

2. The safety device for a high-voltage control box according to claim 1, characterized in that: The limiting seat (501) has a rectangular groove (507) inside, and a trapezoidal slide groove (503) is provided on the front surface of the rectangular groove (507). A trapezoidal slide bar (504) is slidably installed in the trapezoidal slide groove (503).

3. The safety device for a high-voltage control box according to claim 2, characterized in that: A connecting rod (505) is fixedly installed on one end surface of the trapezoidal slide (503), and a return spring (506) is sleeved on one end of the trapezoidal slide strip (504) on the outer surface of the connecting rod (505). A fixing block (502) is fixedly installed on one end surface of the connecting rod (505).

4. The safety device for a high-voltage control box according to claim 3, characterized in that: A first wedge block (508) is fixedly installed on the rear surface of the trapezoidal slide (504), a convex slide block (509) is fixedly installed on the inclined surface of the first wedge block (508), and a second wedge block (510) is fixedly installed on the front surface of the rectangular card block (512).

5. The safety device for a high-voltage control box according to claim 4, characterized in that: The second wedge block (510) has a convex groove (511) on its inclined surface. A convex slide bar (509) is slidably installed in the convex groove (511). A rectangular slider (514) is fixedly installed at the front end of both ends of the rectangular card block (512).

6. The safety device for a high-voltage control box according to claim 5, characterized in that: The rectangular groove (507) has rectangular sliding grooves (513) on both ends near the rear end. A rectangular slider (514) is slidably installed in the rectangular sliding groove (513). The bracket (4) has a rectangular sliding hole (515) on the front surface. A rectangular locking block (512) is slidably installed in the rectangular sliding hole (515).

7. The safety device for a high-voltage control box according to claim 6, characterized in that: The bracket (4) has a rectangular slot (516) on its upper surface, and a rectangular plug (517) is fixedly installed on the lower surface of the leakage current sensor (1). The rectangular plug (517) has a rectangular slot (518) on its front surface, and the rectangular plug (517) is inserted into the rectangular slot (516).

Images