Alternating current vacuum contactor terminal structure capable of preventing mechanical jamming

Abstract

The utility model relates to the field of alternating-current vacuum contactors, in particular to an alternating-current vacuum contactor wiring terminal structure capable of preventing mechanical jamming, which comprises a wiring board. The wiring grooves are formed in the wiring boards and used for wiring terminals, and the wiring boards are installed on the two sides of the alternating current vacuum contactor body. According to the alternating current vacuum contactor wiring terminal structure capable of preventing mechanical jamming, the wiring board, the wiring groove, the dustproof assembly and the fixing mechanism are arranged, so that the wiring terminal can be effectively isolated from the surrounding environment to a certain extent, dust, particles and other metal parts are effectively prevented from falling into the wiring terminal structure, and the service life of the wiring terminal structure is prolonged. The terminal is connected with the wiring groove in the wiring board, then the dustproof cover is turned over on one side of the wiring board, a clamping block at one end of the dustproof cover is inserted into a clamping groove in one side of the wiring board for limiting connection, and a plurality of dustproof sheets are arranged at an opening of the dustproof cover, so that dust and other metal can be blocked; according to the design, the risks of electrical short circuit and mechanical jamming are reduced to a great extent.

Description

Technical Field

[0001] This utility model relates to the field of AC vacuum contactors, specifically to a terminal structure for an AC vacuum contactor that prevents mechanical jamming. Background Technology

[0002] The main function of an AC vacuum contactor is to connect the DC terminal of an AC power supply to the DC terminal of a vacuum voltage, thereby allowing the AC voltage and vacuum voltage to interact. It can also be used as an isolation element for AC voltage. AC vacuum contactors utilize the fault of a vacuum interrupter (vacuum interrupter) to extinguish arcs, and are therefore frequently used to connect and disconnect normal operating currents.

[0003] In existing AC vacuum contactors, the terminals are exposed during the wiring process. Long-term exposure makes them susceptible to electrical short circuits caused by dust and metal parts falling into the terminals. At the same time, the accumulation of dust and particles may block the mechanical parts of the contactor, resulting in inflexible operation or complete failure.

[0004] Therefore, it is necessary to invent a terminal structure for an AC vacuum contactor that prevents mechanical jamming in order to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a terminal structure for an AC vacuum contactor that prevents mechanical jamming. By connecting the terminals to the wiring slots in the terminal block, and then flipping the dust cover on one side of the terminal block, the locking block at one end of the dust cover is inserted into the locking slot on the side of the terminal block for a limiting connection. Multiple dustproof sheets are provided at the opening of the dust cover to block dust and other metals. This design greatly reduces the risk of electrical short circuits and mechanical jamming, thus solving the problem mentioned in the background art that in the existing AC vacuum contactors, the terminals are exposed during the wiring process. Long-term exposure makes them susceptible to electrical short circuits caused by dust and metal parts falling into the terminals. At the same time, the accumulation of dust and particles may block the mechanical parts of the contactor, leading to inflexible operation or complete failure.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an AC vacuum contactor terminal structure for preventing mechanical jamming, including a terminal block;

[0007] A wiring groove, formed inside the wiring board, is used for wiring terminals. The wiring board is installed on both sides of the AC vacuum contactor body.

[0008] A dustproof component is located on one side of the terminal block to prevent mechanical jamming.

[0009] The fixing mechanism, located inside the dustproof assembly, is used to fix the wiring terminals.

[0010] Preferably, the dustproof component includes a movable shaft, which is disposed on one side of the terminal block. A dustproof cover is movably connected to one side of the movable shaft, and a locking block is fixedly connected to one side of the dustproof cover. A locking groove is provided on the other side of the terminal block.

[0011] Preferably, the front surface of the dust cover has through holes, and each through hole is provided with a dustproof sheet.

[0012] Preferably, the locking block on one side of the dust cover is movably engaged with the locking slot on the side of the wiring board, and the locking block and the locking slot are used in conjunction.

[0013] Preferably, the fixing mechanism includes a fixing sleeve installed inside the dust cover, a telescopic rod movably connected inside the fixing sleeve, a spring sleeved on the outside of the telescopic rod, a pressure plate fixedly connected to one end of the telescopic rod, and a rubber pad pasted on the surface of the pressure plate.

[0014] Preferably, connecting plates are fixedly connected to both sides of the pressure plate, a sliding sleeve is provided inside the connecting plate, a sliding rod is slidably connected inside the sliding sleeve, and the sliding rod is fixedly connected to the dust cover.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] This utility model, through the arrangement of a terminal block, wiring groove, dustproof components, and fixing mechanism, effectively isolates the terminal block from the surrounding environment, preventing dust, particles, and other metal parts from falling in. By connecting the terminal block to the wiring groove in the terminal block, and then flipping the dustproof cover on one side of the terminal block, the locking block at one end of the dustproof cover inserts into the locking groove on the side of the terminal block for a limited connection. Multiple dustproof sheets are provided at the opening of the dustproof cover to block dust and other metals. This design greatly reduces the risk of electrical short circuits and mechanical jamming. At the same time, the pressure plate and rubber pad inside the dustproof cover, combined with the spring outside the telescopic rod, provide a spring-loaded rebound effect, strengthening the terminal block's firmness and preventing loosening that could lead to electrical short circuits and mechanical jamming. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2This is a schematic diagram of the wiring board and dust cover structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the dustproof component structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the dust cover of this utility model;

[0022] Figure 5 This is a schematic diagram of the fixing mechanism of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Terminal block; 2. AC vacuum contactor body; 3. Wiring groove; 4. Dustproof assembly; 401. Movable shaft; 402. Dust cover; 403. Locking block; 404. Locking groove; 405. Dustproof sheet; 5. Fixing mechanism; 501. Fixing sleeve; 502. Telescopic rod; 503. Spring; 504. Pressure plate; 505. Rubber pad; 506. Connecting plate; 507. Sliding sleeve; 508. Sliding rod. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model provides, for example Figure 1-5 The diagram shows a terminal structure for an AC vacuum contactor to prevent mechanical jamming, including a terminal block 1;

[0027] The wiring groove 3 is located inside the wiring plate 1 and is used for wiring terminals. The wiring plate 1 is installed on both sides of the AC vacuum contactor body 2.

[0028] Dustproof component 4 is located on one side of terminal block 1 to prevent mechanical jamming;

[0029] The fixing mechanism 5, located inside the dustproof assembly 4, is used to fix the wiring terminals. By connecting the terminals to the wiring slots 3 in the terminal block 1, the dustproof cover 402 is flipped on one side of the terminal block 1, so that the locking block 403 at one end of the dustproof cover 402 is inserted into the locking slot 404 on one side of the terminal block 1 for limiting connection. Multiple dustproof sheets 405 are provided at the opening of the dustproof cover 402 to block dust and other metals. This design greatly reduces the risk of electrical short circuits and mechanical jamming. At the same time, the pressure plate 504 and rubber pad 505 inside the dustproof cover 402, along with the spring 503 outside the telescopic rod 502, play a rebound squeezing role, which strengthens the firmness of the wiring terminals and avoids loosening that could lead to electrical short circuits and mechanical jamming.

[0030] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the dustproof assembly 4 includes a movable shaft 401, which is disposed on one side of the terminal block 1. A dustproof cover 402 is movably connected to one side of the movable shaft 401, and a locking block 403 is fixedly connected to one side of the dustproof cover 402. A locking groove 404 is provided on the other side of the terminal block 1. When the terminal block is connected to the terminal block 1, the dustproof cover 402 flips on one side of the terminal block 1 via the movable shaft 401, so that the dustproof cover 402 is locked in the locking groove 404 on the other side of the terminal block 1, thus enclosing the terminal block 1 and the terminal block and preventing dust and mechanical parts from entering the connection of the terminal block.

[0031] like Figure 3 and Figure 4 As shown, the front surface of the dust cover 402 has through holes, and each through hole is provided with a dustproof sheet 405. Multiple sets of dustproof sheets 405 are provided inside the through holes on the front side of the dust cover 402, which can effectively prevent dust from entering the terminal connection from the through holes.

[0032] like Figure 3 As shown, the locking block 403 on one side of the dust cover 402 is movably engaged with the locking groove 404 on one side of the terminal block 1. The locking block 403 and the locking groove 404 work together to improve the firmness of the dust cover 402 by locking the locking block 403 on one side of the dust cover 402 into the locking groove 404 on the side of the terminal block 1, and to prevent the dust cover 402 from loosening and opening due to shaking, thereby losing its dustproof effect.

[0033] like Figure 1 , Figure 4 and Figure 5 As shown, the fixing mechanism 5 includes a fixing sleeve 501, which is installed inside the dust cover 402. A telescopic rod 502 is movably connected inside the fixing sleeve 501. A spring 503 is sleeved on the outside of the telescopic rod 502. A pressure plate 504 is fixedly connected to one end of the telescopic rod 502. A rubber pad 505 is pasted on the surface of the pressure plate 504. When the dust cover 402 is flipped onto the terminal block 1, the pressure plate 504 is pressed tightly against the outside of the terminal block by the rebound squeezing action of the fixing sleeve 501, the telescopic rod 502 and the external spring 503, which strengthens the firmness of the terminal block and prevents loosening that could lead to electrical short circuits and mechanical jamming.

[0034] like Figure 5 As shown, connecting plates 506 are fixedly connected to both sides of the pressure plate 504. A sliding sleeve 507 is provided inside the connecting plate 506. A sliding rod 508 is slidably connected inside the sliding sleeve 507. The sliding rod 508 is fixedly connected to the dust cover 402. When the pressure plate 504 rebounds and extends within the dust cover 402, it moves outside the sliding rod 508 through the connecting plates 506 and the sliding sleeve 507 on both sides, which improves the stability of the movement.

[0035] The working principle of this utility model is as follows: First, the wiring terminals are threadedly fixed to the wiring groove 3 in the wiring plate 1 on one side of the AC vacuum contactor body 2. After the fixed connection is completed, the dust cover 402 is flipped over by the movable shaft 401 on one side of the wiring plate 1 to cover the wiring terminals in the wiring plate 1. After the cover is flipped over, the locking block 403 on one side of the dust cover 402 is inserted into the locking groove 404 on the other side of the wiring plate 1 to limit and fix the dust cover 402. During the flipping process, the dust cover 402 is spring-loaded by the internal fixing sleeve 501, the telescopic rod 502 and the external spring 503. This design presses the pressure plate 504 firmly against the terminal block, enhancing its stability and preventing loosening that could lead to electrical short circuits and mechanical jamming. Afterward, the power is switched on to energize the terminal block. The dust cover 402 and multiple dustproof plates 405 at the through-hole effectively isolate the terminal block from the surrounding environment, preventing dust, particles, and other metal parts from falling in. This design significantly reduces the risk of electrical short circuits and mechanical jamming. Thus, the process of using this anti-mechanical jamming AC vacuum contactor terminal block structure is complete.

[0036] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A terminal structure for an AC vacuum contactor to prevent mechanical jamming, characterized in that: Including the junction box (1); A wiring groove (3) is provided inside the wiring plate (1) for wiring terminals. The wiring plate (1) is installed on both sides of the AC vacuum contactor body (2). The dustproof component (4) is located on one side of the terminal block (1) to prevent mechanical jamming; The fixing mechanism (5) is located inside the dustproof assembly (4) and is used to fix the wiring terminals.

2. The AC vacuum contactor terminal structure for preventing mechanical jamming according to claim 1, characterized in that: The dustproof component (4) includes a movable shaft (401), which is located on one side of the terminal block (1). A dustproof cover (402) is movably connected to one side of the movable shaft (401), and a locking block (403) is fixedly connected to one side of the dustproof cover (402). A locking groove (404) is provided on the other side of the terminal block (1).

3. The AC vacuum contactor terminal structure for preventing mechanical jamming according to claim 2, characterized in that: The front surface of the dust cover (402) is provided with a through hole, and a dustproof sheet (405) is provided in each of the through holes.

4. The AC vacuum contactor terminal structure for preventing mechanical jamming according to claim 2, characterized in that: The locking block (403) on one side of the dust cover (402) is movably engaged with the slot (404) on one side of the wiring board (1), and the locking block (403) and the slot (404) are used together.

5. The AC vacuum contactor terminal structure for preventing mechanical jamming according to claim 2, characterized in that: The fixing mechanism (5) includes a fixing sleeve (501), which is installed inside the dust cover (402). A telescopic rod (502) is movably connected inside the fixing sleeve (501). A spring (503) is sleeved on the outside of the telescopic rod (502). A pressure plate (504) is fixedly connected to one end of the telescopic rod (502). A rubber pad (505) is pasted on the surface of the pressure plate (504).

6. The AC vacuum contactor terminal structure for preventing mechanical jamming according to claim 5, characterized in that: The pressure plate (504) is fixedly connected to both sides of the connecting plate (506), and a sliding sleeve (507) is provided inside the connecting plate (506). A sliding rod (508) is slidably connected inside the sliding sleeve (507), and the sliding rod (508) is fixedly connected to the dust cover (402).

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