Junction box

Abstract

The utility model relates to a junction box which comprises a box body and a wiring terminal installed in the box body, the box body is provided with a wire inlet and a wire outlet, the junction box further comprises a clamping mechanism installed outside the box body, and the box body is detachably installed at a to-be-fixed position through the clamping mechanism; and the limiting mechanism is installed in the box body, and the limiting mechanism is configured to abut against and limit electric wires at the wire inlet and the wire outlet to the side wall of the box body. The clamping mechanism is installed outside the box body, and the junction box is detachably connected with a position to be fixed through the clamping mechanism. The limiting mechanism is installed in the box body and can make wires at the wire outlet and the wire inlet abut against the side wall of the box body, it is guaranteed that the wires can be stably connected with the wiring terminals, the situation that the wires are separated from the wiring terminals after an operator touches the wires by mistake is avoided, and the using effect of the junction box is guaranteed.

Description

Technical Field

[0001] The present disclosure relates to the technical field of junction boxes, and in particular, to a junction box. Background Art

[0002] A junction box mainly has two functions: one is to connect multiple cables or wires to achieve connection and communication between different electrical devices; the other is to protect the wires and electrical devices.

[0003] In the related art, after a maintenance personnel accidentally touches a wire, it may cause the wire to detach from the terminal block, affecting the use effect of the junction box. Summary of the Utility Model

[0004] The purpose of the present disclosure is to provide a junction box to at least partially solve the problems existing in the related art.

[0005] To achieve the above purpose, the present disclosure provides a junction box, which includes a box body and terminal blocks installed in the box body. The box body is provided with an inlet and an outlet. The junction box further includes: a clamping mechanism installed outside the box body, and the box body is detachably installed at a position to be fixed through the clamping mechanism; and a limiting mechanism installed in the box body, and the limiting mechanism is configured to: abut and limit the wires at the inlet and the outlet against the side wall of the box body.

[0006] Optionally, the inlet and the outlet are oppositely arranged and arranged on the same straight line. The limiting mechanism includes a limiting plate arranged in the box body, and the limiting plate can move back and forth between both sides of the straight line where the inlet and the outlet are located. Among them, when the limiting plate moves forward, the wires at the inlet and the outlet can be connected to the terminal blocks; when the limiting plate moves backward, the wires can be limited between the side wall of the box body and the limiting plate.

[0007] Optionally, notches are provided at both ends of the limiting plate. The limiting mechanism further includes two elastic sheets. The elastic sheets are provided with a free end and a fixed end that are oppositely arranged. The fixed end is fixedly connected to the side wall of the notch. During the process of the limiting plate moving backward, the free end can elastically abut the wire against the side wall of the box body.

[0008] Optionally, the limiting mechanism further includes a sliding rod, and the sliding rod is slidably inserted into the box body and fixedly connected to the limiting plate, and the sliding rod is pulled to drive the limiting plate to move back and forth.

[0009] Optionally, the limiting mechanism further includes a spring sleeved on the sliding rod, and both ends of the spring respectively abut against the limiting plate and the inner wall of the box body, where

[0010] The limiting plate moves forward, and the spring is compressed;

[0011] Under the action of the restoring deformation force of the spring, the limiting plate is driven to move backward.

[0012] Optionally, the clamping mechanism includes a housing and a clamping plate. The housing has a fixing part connected to the box body and a clamping part spaced below the box body. The clamping plate can extend out of or retract into the housing to clamp and fix the junction box at the position to be fixed or release it from the position to be fixed.

[0013] Optionally, the clamping mechanism further includes a transmission assembly and a screw rod. The transmission assembly is arranged inside the housing and is connected between the screw rod and the clamping plate. The transmission assembly is used to convert the rotational motion of the screw rod into the up-and-down linear motion of the clamping plate.

[0014] Optionally, the transmission assembly includes: a mounting seat sleeved on the screw rod and screwed to the screw rod; a telescopic rod with two ends respectively connected to the inner wall of the mounting seat and the housing; and two mounting rods. The two mounting rods are respectively arranged on both sides of the clamping plate. The mounting rod is provided with a first end, a second end and a middle end which are oppositely arranged. The first end is hinged to the mounting seat, the second end is hinged to the clamping plate, and the middle end is hinged to the housing. Rotate the screw rod to make the mounting seat drive the first end to move downward, so that the second end pushes the clamping plate to extend upward out of the housing.

[0015] Optionally, the clamping mechanism further includes an elastic member elastically connected between the housing and the mounting seat.

[0016] Optionally, a rubber pad is provided on the side of the clamping plate away from the mounting rod.

[0017] The technical solution provided by the embodiment of the present disclosure may include the following beneficial effects: In the junction box provided by the present disclosure, the clamping mechanism is installed outside the box body, and the junction box is detachably connected to the position to be fixed through the clamping mechanism. The limiting mechanism is installed inside the box body and can abut the wires at the wire outlet and the wire inlet against the side wall of the box body, ensuring that the wires can be stably connected to the terminal blocks, preventing the wires from being separated from the terminal blocks after being accidentally touched by the operator, and ensuring the use effect of the junction box.

[0018] Other features and advantages of the present disclosure will be described in detail in the subsequent specific implementation part. Description of the Drawings

[0019] The accompanying drawings are used to provide a further understanding of the present disclosure and form a part of the specification. Together with the following detailed description, they are used to explain the present disclosure, but do not constitute a limitation to the present disclosure. In the accompanying drawings:

[0020] Figure 1 is a schematic diagram of a junction box shown according to an exemplary embodiment of the present disclosure.

[0021] Figure 2 is a cross-section of a junction box shown according to an exemplary embodiment of the present disclosure Figure 1 。

[0022] Figure 3 is a cross-section of a junction box shown according to an exemplary embodiment of the present disclosure Figure 2 。

[0023] Description of Reference Numerals

[0024] 100, box body; 110, inlet; 120, outlet; 130, heat dissipation holes; 200, terminal; 300, clamping mechanism; 310, housing; 320, clamping plate; 330, transmission assembly; 331, mounting base; 332, telescopic rod; 333, mounting rod; 350, screw; 360, rubber pad; 380, elastic member; 400, limiting mechanism; 410, limiting plate; 411, notch; 420, sliding rod; 430, spring; 440, elastic sheet; 441, free end; 442, fixed end. Detailed Description

[0025] The following is a detailed description of the specific embodiments of the present disclosure in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure, and do not limit the present disclosure.

[0026] In the present disclosure, unless otherwise stated, the orientation terms such as "upper, lower, front, and rear" are defined for the convenience of description in combination with the corresponding drawings, and do not limit the direction of the junction box. "Inner and outer" are defined according to the outline of the corresponding components. The terms such as "first, second" used in the present disclosure are used to distinguish one element from another, and do not have sequentiality and importance. In addition, when the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0027] Please refer to Figure 1 and Figure 2, A junction box provided by an embodiment of the present disclosure may include a box body 100 and a terminal 200 installed in the box body 100. The box body 100 may be provided with an inlet 110 and an outlet 120. The junction box may further include a clamping mechanism 300 and a limiting mechanism 400. Among them, the clamping mechanism 300 may be installed outside the box body 100, and the box body 100 may be detachably installed at a position to be fixed through the clamping mechanism 300. The position to be fixed may be a wall surface or a fixing column, a fixing plate, etc. on an electrical cabinet. The junction box is fixed to the wall surface or the electrical cabinet through the clamping mechanism 300. The limiting mechanism 400 may be installed in the box body 100, and the limiting mechanism 400 may be configured to: abut and limit the wires (not shown in the figure) at the inlet 110 and the outlet 120 against the side wall of the box body 100.

[0028] In the related art, the terminal 200 is crimped on the wire to fix the wire in the junction box. When a maintenance worker accidentally touches the wire, the wire may be pulled out from the terminal 200, affecting the use effect of the junction box. In this embodiment, a limiting mechanism 400 is provided in the box body 100. The limiting mechanism 400 can abut the wires at the outlet 120 and the inlet 110 against the side wall of the box body 100, strengthening the connection between the wire and the terminal 200, preventing the wire from being separated from the terminal 200 when the operator accidentally touches the wire, and ensuring the use effect of the junction box.

[0029] In one embodiment, please refer to Figure 2 , the inlet 110 and the outlet 120 may be arranged oppositely and may be arranged on the same straight line. The limiting mechanism 400 may include a limiting plate 410 provided in the box body 100. The limiting plate 410 can move back and forth between both sides of the straight line where the inlet 110 and the outlet 120 are located. Among them, when the limiting plate 410 moves forward, the wires at the inlet 110 and the outlet 120 can be connected to the terminal 200; when the limiting plate 410 moves backward, the wires can be limited between the side wall of the box body 100 and the limiting plate 410.

[0030] It can be understood that by arranging the inlet 110 and the outlet 120 oppositely and on the same straight line, the wires at the inlet 110 and the outlet 120 can be simultaneously abutted against the side wall of the housing 310 by driving the backward movement of the limiting plate 410, improving the abutting efficiency of the wires.

[0031] Furthermore, please refer to Figure 2, drive the limit plate 410 to move forward so that both sides of the limit plate 410 cross the wire inlet 110 and the wire outlet 120, enabling the incoming wire (not shown in the figure) to enter the box body 100 through the wire inlet 110 and be connected to the terminal 200. Also, it allows the outgoing wire (not shown in the figure) to leave the box body 100 through the wire outlet 120 after being connected to the terminal 200. Drive the limit plate 410 to move backward so that both ends of the limit plate 410 can respectively press the wires at the wire inlet 110 and the wire outlet 120 against the opposite side walls of the box body 100, preventing the wires from moving relative to the terminal 200, thus avoiding the wires being accidentally pulled and separated from the terminal 200 and ensuring the stability of the junction box during operation.

[0032] In one embodiment, please refer to Figure 2 , notches 411 can be provided at both ends of the limit plate 410. The limit mechanism 400 can further include two elastic pieces 440. The elastic pieces 440 can be provided with a free end 441 and a fixed end 442 which are oppositely arranged. The fixed end 442 can be fixedly connected to the side wall of the notch 411. During the backward movement of the limit plate 410, the free end 441 can elastically press the wire against the side wall of the box body 100.

[0033] It can be understood that the wires at the wire inlet 110 and the wire outlet 120 are within the backward movement stroke of the limit plate 410. Therefore, these wires can enter the notch 411 during the backward movement of the limit plate 410 and abut against the free end 441 of the elastic piece 440 in the notch 411. The free end 441 can clamp and limit the wire between the elastic piece 440 and the side wall of the box body 100. By means of elastic abutment, the damage of the wire can be avoided and the integrity of the wire can be ensured.

[0034] In one embodiment, please refer to Figure 2 , the limit mechanism 400 can further include a slide bar 420. The slide bar 420 can be slidably inserted into the box body 100 and can be fixedly connected to the limit plate 410. Pull the slide bar 420 to drive the limit plate 410 to move forward and backward. Pull the slide bar 420 to drive the limit plate 410 to move forward, enabling the incoming wire to pass through the wire inlet 110 and be connected to the terminal 200, and enabling the outgoing wire to leave the box body 100 through the wire outlet 120 after being connected to the terminal 200. Pull the slide bar 420 to drive the limit plate 410 to move backward to press the wires at the wire inlet 110 and the wire outlet 120 against the side wall of the box body 100. The user indirectly controls the forward and backward movement of the limit plate 410 by driving the slide bar 420 without the need for the user to put their hand into the box body 100 to drive the limit plate 410 to move.

[0035] Further, please refer to Figure 2, the limiting mechanism 400 may further include a spring 430 sleeved on the sliding rod 420. The two ends of the spring 430 respectively abut against the limiting plate 410 and the inner wall of the box body 100. Among them, when the limiting plate 410 moves forward, the spring 430 is compressed; under the action of the restoring deformation force of the spring 430, the limiting plate 410 is driven to move backward. By arranging the spring 430, the spring 430 can automatically drive the limiting plate 410 to move backward without manually driving the limiting plate 410 to move backward manually, reducing the labor intensity of the user.

[0036] In another embodiment, the limiting mechanism 400 includes a driving motor and a lead screw. The driving motor is in transmission connection with the lead screw. The limiting plate 410 is sleeved on the lead screw and is in threaded connection with the lead screw. The driving motor drives the lead screw to rotate to drive the limiting plate 410 to move forward or backward.

[0037] In one embodiment, please refer to Figure 1 and Figure 2 , a plurality of heat dissipation holes 130 are provided on the side wall of the box body 100, ensuring the working temperature of the components in the box body 100 and ensuring the safety of the junction box during operation.

[0038] In one embodiment, an observation window is provided on the box body 100. The user can observe whether the wiring on the terminal block 200 is loose through the observation window, which is convenient for maintenance and enhances the practicability of the junction box.

[0039] In one embodiment, please refer to Figure 1 and Figure 3 , the clamping mechanism 300 may include a housing 310 and a clamping plate 320. The housing 310 has a fixing part connected to the box body 100 and a clamping part spaced below the box body 100. The clamping plate 320 can extend out of or retract into the housing 310 to clamp and fix the junction box at the position to be fixed or release it from the position to be fixed. Through the extension and retraction of the clamping plate 320, the detachable connection between the junction box and the position to be fixed can be quickly realized.

[0040] Further, please refer to Figure 3 , the clamping mechanism 300 may further include a transmission assembly 330 and a screw 350. The transmission assembly 330 may be arranged in the housing 310 and may be connected between the screw 350 and the clamping plate 320. The transmission assembly 330 may be used to convert the rotational motion of the screw 350 into the up-and-down linear motion of the clamping plate 320.

[0041] It can be understood that when the screw 350 rotates, the transmission assembly 330 can convert the rotation of the screw 350 into the upward movement of the clamping plate 320, so that the clamping plate 320 extends out of the housing 310 until the position to be fixed is abutted between the clamping plate 320 and the box body 100; when the screw 350 rotates in the reverse direction, the transmission assembly 330 can convert the reverse rotation of the screw 350 into the downward movement of the clamping plate 320, so that the clamping plate 320 retracts into the housing 310, thereby realizing the separation from the position to be fixed.

[0042] In one embodiment, please refer to Figure 3 , the transmission assembly 330 may include a mounting seat 331, a telescopic rod 332 and a mounting rod 333. Among them, the mounting seat 331 can be sleeved on the screw 350 and can be screwed with the screw 350. The two ends of the telescopic rod 332 can be respectively connected to the mounting seat 331 and the inner wall of the housing 310. There may be two mounting rods 333, and the two mounting rods 333 can be respectively arranged on both sides of the clamping plate 320. The mounting rod 333 can be provided with a first end, a second end and a middle end which are oppositely arranged. The first end can be hinged to the mounting seat 331, the second end can be hinged to the clamping plate 320, and the middle end can be hinged to the housing 310. Rotate the screw 350 so that the mounting seat 331 can drive the first end to move downward, so that the second end can push the clamping plate 320 to extend upward out of the housing 310 until the position to be fixed is abutted between the clamping plate 320 and the box body 100, and the telescopic rod 332 is stretched; rotate the screw 350 in the reverse direction so that the mounting seat 331 can drive the first end to move upward, so that the second end can drive the clamping plate 320 to retract into the housing 310, thereby realizing the separation of the clamping plate 320 from the position to be fixed, and the telescopic rod 332 is compressed. The user only needs to rotate the screw 350 to control the clamping or release of the clamping plate 320 and the box body 100 on the position to be fixed. The operation method is simple and convenient for the disassembly and maintenance of the junction box. By arranging the telescopic rod 332, the movement direction of the mounting seat 331 can be restricted, avoiding the rotation of the mounting seat 331 during the working process and ensuring the stability of the clamping plate 320 during operation. In other embodiments, the transmission assembly 330 may also be a gear-rack structure or a multi-link structure, etc.

[0043] Further, please refer to Figure 3 , the clamping mechanism 300 may further include an elastic member 380, and the elastic member 380 can be elastically connected between the housing 310 and the mounting seat 331, increasing the contact area between the mounting seat 331 and the inner wall of the housing 310, reducing the pressure of the mounting seat 331 on the housing 310, and buffering the abutting force of the mounting seat 331 on the housing 310.

[0044] In one embodiment, the mounting base 331 may include a movable seat and a support seat provided on both sides of the clamping plate 320. The end of the telescopic rod 332, the end of the elastic member 380, and the first end of the mounting rod 333 are integrally mounted on the movable seat. The support seat includes a horizontal section and inclined sections located on both sides of the horizontal section. The screw 350 is threadedly connected to the horizontal section, and the inclined sections are connected to the movable seat.

[0045] In one embodiment, please refer to Figure 3 , a rubber pad 360 may be provided on the side of the clamping plate 320 away from the mounting rod 333. By providing the rubber pad 360, the abutting force applied by the clamping plate 320 to the position to be fixed can be buffered, and the friction between the two can also be increased, ensuring that the clamping plate 320 and the box body 100 can clamp the position to be fixed from both sides, so as to ensure that the junction box can be stably connected to the position to be fixed and effectively prevent the junction box from falling off.

[0046] The preferred embodiments of the present disclosure have been described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0047] In addition, it should be noted that, among the various specific technical features described in the above specific embodiments, they can be combined in any suitable manner without conflict. To avoid unnecessary repetition, the present disclosure will not separately describe various possible combination methods.

[0048] In addition, any combination can be made between various different embodiments of the present disclosure as long as it does not violate the idea of the present disclosure, and it should also be regarded as the content disclosed by the present disclosure.

Claims

1. A junction box, the junction box comprising a box body and terminal blocks installed in the box body, the box body being provided with an inlet and an outlet, characterized in that, The junction box further comprises: a clamping mechanism, which is installed outside the box body, and the box body is detachably installed at a position to be fixed through the clamping mechanism; and a limiting mechanism, which is installed inside the box body, and the limiting mechanism is configured to: abut and limit the wires at the inlet and outlet against the side wall of the box body.

2. The junction box according to claim 1, characterized in that, The inlet and the outlet are arranged opposite to each other and on the same straight line. The limiting mechanism includes a limiting plate arranged inside the box body, and the limiting plate can move back and forth between both sides of the straight line where the inlet and the outlet are located. Among them, when the limiting plate moves forward, the wires at the inlet and the outlet can be connected to the terminal block; when the limiting plate moves backward, the wires can be limited between the side wall of the box body and the limiting plate.

3. The junction box according to claim 2, characterized in that, Both ends of the limiting plate are provided with notches. The limiting mechanism further includes two elastic pieces. The elastic pieces are provided with a free end and a fixed end arranged opposite to each other. The fixed end is fixedly connected to the side wall of the notch. During the process of the limiting plate moving backward, the free end can elastically abut the wire against the side wall of the box body.

4. The junction box according to claim 2, characterized in that, The limiting mechanism further includes a sliding rod, which is slidably inserted into the box body and fixedly connected to the limiting plate. The sliding rod is pulled to drive the limiting plate to move back and forth.

5. The junction box according to claim 4, wherein, The limiting mechanism further includes a spring sleeved on the sliding rod. Both ends of the spring respectively abut against the limiting plate and the inner wall of the box body. Among them when the limiting plate moves forward, the spring is compressed; under the action of the restoring deformation force of the spring, the limiting plate is driven to move backward.

6. The junction box according to any one of claims 1-5, characterized in that, The clamping mechanism includes a housing and a clamping plate. The housing has a fixing part connected to the box body and a clamping part spaced below the box body. The clamping plate can extend out of or retract into the housing to clamp and fix the junction box at the position to be fixed or release it from the position to be fixed.

7. The junction box according to claim 6, characterized in that, The clamping mechanism further includes a transmission component and a screw rod. The transmission component is arranged inside the housing and is connected between the screw rod and the clamping plate. The transmission component is used to convert the rotational motion of the screw rod into the up-and-down linear motion of the clamping plate.

8. The junction box according to claim 7, characterized in that, The transmission component includes: a mounting seat, which is sleeved on the screw rod and is screwed to the screw rod; a telescopic rod, with both ends respectively connected to the mounting seat and the inner wall of the housing; and two mounting rods, and the two mounting rods are respectively arranged on both sides of the clamping plate. The mounting rods are provided with a first end, a second end and a middle end arranged opposite to each other. The first end is hinged to the mounting seat, the second end is hinged to the clamping plate, and the middle end is hinged to the housing; The screw rod is rotated to make the mounting seat drive the first end to move downward, so that the second end pushes the clamping plate to extend upward out of the housing.

9. The junction box according to claim 8, wherein, The clamping mechanism further includes an elastic member, and the elastic member is elastically connected between the housing and the mounting seat.

10. The junction box according to claim 8, characterized in that, A rubber pad is arranged on one side of the clamping plate away from the mounting rod.

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