A large current terminal block with push block unlocking

Abstract

The utility model discloses a big current wiring board of push block unlocking, include: base shell and upper cover, the upper cover is up and down swing cooperation has push block, the push block rear side is provided with first connecting block, the base shell front side is provided with connecting seat, be provided with second connecting block on the connecting seat, when the upper cover is placed in the base shell front side, push push block moves from the unlocking position to the locking position, can link first connecting block and move to the second connecting block rear side, to make the upper cover connect on the base shell, through first clamping protrusion and first clamping groove clamping cooperation between push block and upper cover simultaneously to make push block keep in the locking position, when reverse push push block can make it from the locking position to the unlocking position, remove the connection between the upper cover and the base shell. Adopt above -mentioned technical scheme, through the mode of manual push push block, time -saving and labor -saving, fast, need not rely on work piece unlocking, and unlocking is simpler and more convenient, makes it more convenient operation when wiring.

Description

Technical Field

[0001] This utility model relates to the technical field of terminal blocks, and in particular to a high-current terminal block with push-block unlocking. Background Technology

[0002] Currently, high-current power strips on the market generally consist of a base shell and a top cover. The wiring assembly is installed inside the base shell, and the top cover is connected to the base shell by bolts. The wiring assembly is placed in a recessed cavity on the back of the top cover. In use, one must first loosen the bolts with a screwdriver to remove the top cover, then connect the wires to the wiring assembly, and then place the top cover back onto the base shell and tighten the bolts with a screwdriver to secure the top cover, thus covering the wiring assembly. This method of locking the top cover is time-consuming, laborious, and overly reliant on tools. Therefore, designing a high-current power strip that allows the top cover to be installed on the base shell without tools and can be quickly removed is an urgent technical problem to be solved. Utility Model Content

[0003] In order to overcome the existing technical defects, the purpose of this utility model is to provide a high-current terminal block for push-block unlocking to solve the above-mentioned technical problems.

[0004] The technical solution adopted by this utility model to solve the technical problem is as follows:

[0005] According to one aspect of this utility model, a high-current connector board with push-block unlocking is designed, comprising: a base shell and a top cover. A push block is movably fitted on the top cover. A first connecting block is provided on the rear side of the push block. A connecting seat is provided on the front side of the base shell. A second connecting block is provided on the connecting seat. When the top cover is placed on the front side of the base shell, pushing the push block from the unlocked position to the locked position can move the first connecting block to the rear side of the second connecting block, so that the top cover is connected to the base shell. At the same time, the push block and the top cover are engaged by a first snap-fit ​​protrusion and a first snap-fit ​​groove to keep the push block in the locked position. When the push block is pushed in the opposite direction, it can be moved from the locked position to the unlocked position, releasing the connection between the top cover and the base shell.

[0006] Using the above technical solution, the connection and disconnection between the upper cover and the base shell can be achieved by manually pushing the push block up and down. Compared with the existing method of connecting and disconnecting the upper cover and the base shell by tightening bolts with a screwdriver, manually pushing the push block is time-saving, labor-saving, and fast. It does not require unlocking with a workpiece, making unlocking simpler and more convenient, and making it easier to operate during wiring. When the first connecting block moves to the rear of the second connecting block, and the upper cover and the base shell are in the connected state, the push block can be kept in the locked position by the engagement of the first locking protrusion and the first locking groove, preventing the two from separating due to external vibration and ensuring a stable and reliable connection between them.

[0007] To better address the aforementioned technical deficiencies, this utility model also offers a superior technical solution:

[0008] In some embodiments, when the push block moves from the locked position to the unlocked position, the push block and the top cover engage through a second engaging protrusion and a second engaging slot to keep the push block in the unlocked position. Thus, when the push block is in the unlocked position, it facilitates connection between the top cover and the base housing.

[0009] In some embodiments, a wiring assembly is installed inside the base housing, with a portion of the wiring assembly inserted into a recess on the rear side of the top cover. When the top cover is placed in front of and in contact with the base housing, the wiring assembly is inserted into the recess on the rear side of the top cover and contacts or maintains a small gap with the side wall of the recess. Even if the top cover and the base housing are not connected, the top cover will not move up or down relative to the base housing, i.e., the wiring assembly will prevent the top cover from moving up or down relative to the base housing.

[0010] In some embodiments, the push block includes a push head and a connecting plate disposed at the upper and lower ends of the push head. The push head is movably engaged with a vertical through hole on the upper cover. The connecting plate is located inside the upper cover. The upper cover is provided with a plurality of mounting buckles for restricting the separation of the connecting plate from it. There are two first connecting blocks. Two second connecting blocks are provided laterally spaced on the connecting seat. When the push block moves to the locking position, the two first connecting blocks are located behind the two second connecting blocks and contact them.

[0011] In some embodiments, the connecting plate is provided with a vertical strip-shaped limiting hole, and the upper cover is provided with a limiting post that cooperates with the strip-shaped limiting hole. When the push block is pushed down, the upper inner wall of the strip-shaped limiting hole abuts against the limiting post, and the push block moves from the unlocked position to the locked position. When the push block is pushed up, the lower inner wall of the strip-shaped limiting hole abuts against the limiting post, and the push block moves from the locked position to the unlocked position.

[0012] In some embodiments, the upper cover has two slidingly fitted push blocks, and the lower front side of the first connecting block is provided with a first inclined surface. Thus, the first inclined surface facilitates the smooth sliding of the first connecting block to the rear side of the second connecting block.

[0013] In some embodiments, a second inclined surface is provided on the front side of the end of the connecting plate. The second inclined surface can prevent the first and second locking protrusions from colliding with the edges at the upper and lower ends of the two connecting plates and affecting their movement, thus ensuring smooth movement of the connecting plates.

[0014] In some embodiments, the first snap-fit ​​protrusion is semi-circular and located on the inner wall of the upper cover, the first snap-fit ​​groove is elongated with a semi-circular cross-section and located on the front side of the lower end of the push block, the second snap-fit ​​protrusion is semi-circular and located on the inner wall of the upper cover, and the second snap-fit ​​groove is elongated with a semi-circular cross-section and located on the front side of the upper end of the push block.

[0015] In some embodiments, the connector engages with the base housing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a high-current terminal block with push-block unlocking according to one embodiment of the present invention. The push-block on the left is in the unlocked state, and the push-block on the right is in the locked state.

[0017] Figure 2 This is a schematic diagram of the upper cover structure;

[0018] Figure 3 This is a schematic diagram of the pusher block structure;

[0019] Figure 4 This is a schematic diagram of the base shell structure;

[0020] Figure 5 This is a schematic diagram of the connector structure;

[0021] Figure 6 This is a structural diagram of the base shell and the push block. The push block on the left is in the unlocked state, and the push block on the right is in the locked state.

[0022] Figure 7 This is a schematic diagram of the wiring assembly.

[0023] Figure label:

[0024] 1. Base shell; 11. Wedge-shaped locking block; 2. Top cover; 21. Mounting buckle; 22. First locking protrusion; 23. Second locking protrusion; 24. Limiting post; 3. Push block; 30. First connecting block; 301. First inclined surface; 31. Push head; 32. Connecting plate; 321. Second inclined surface; 322. First locking groove; 323. Second locking groove; 324. Strip-shaped limiting hole; 4. Connecting seat; 41. Buckle; 42. Second connecting block; 5. Wiring assembly; 51. Copper busbar; 52. Connector; 53. Wire clamping screw; 54. Conductive seat. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, unless otherwise explicitly defined, terms such as setting, installing, connecting, and fixing should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0028] refer to Figures 1 to 7 As shown, the present invention provides a high-current wiring board for push-block unlocking, comprising: a base shell 1 and an upper cover 2.

[0029] The upper cover 2 is equipped with a push block 3 that moves up and down. A first connecting block 30 is provided on the rear side of the push block 3. Specifically, the push block 3 includes a push head 31 and a connecting plate 32 located at the upper and lower ends of the push head 31. The push head 31 moves up and down with the vertical through hole on the upper cover 2. The push head 31 is displayed on the front side of the upper cover 2. The connecting plate 32 is located inside the upper cover 2. The upper cover 2 is equipped with a plurality of mounting buckles 21 for restricting the connection plate 32 from separating from it. There are two, three, four or more mounting buckles 21. In this embodiment, there are preferably six mounting buckles 21, divided into three pairs, located on both sides of the connecting plate 32 and the push head 31. The wedge-shaped buckle head on the mounting buckle 21 is located on the rear side of the connecting plate 32. There are two first connecting blocks 30. A first inclined surface 301 is provided on the front side of the lower end of the first connecting block 30. A second inclined surface 321 is provided on the front side of the upper and lower ends of the connecting plate 32, respectively.

[0030] One of the push block 3 and the upper cover 2 is provided with a first engaging protrusion 22, and the other is provided with a first engaging groove 322 that engages with the first engaging protrusion 22. In this embodiment, the lower front side of the connecting plate 32 of the push block 3 is provided with the first engaging groove 322. The first engaging groove 322 is a horizontally elongated strip with a semi-circular cross-section. The inner side wall of the upper cover 2 is provided with one or two first engaging protrusions 22, which are semi-circular. One of the push block 3 and the upper cover 2 is provided with a second engaging protrusion 23, and the other is provided with a second engaging groove 323 that engages with the second engaging protrusion 23. In this embodiment, the upper front side of the connecting plate 32 of the push block 3 is provided with the second engaging groove 323. The second engaging groove 323 is a horizontally elongated strip with a semi-circular cross-section. The inner side wall of the upper cover 2 is provided with one or two second engaging protrusions 23, which are semi-circular.

[0031] A connecting seat 4 is provided on the front side of the base shell 1. The number of connecting seats 4 is the same as the number of push blocks 3. In this embodiment, it is preferable that two connecting seats 4 are provided on the front side of the base shell 1. The connecting seats 4 are integrally formed with the base shell 1, or the connecting seats 4 are fixed to the base shell 1 by screws, or the connecting seats 4 are snapped together with the base shell 1. In this embodiment, it is preferable that the connecting seats 4 are snapped together with the base shell 1. Specifically, buckles 41 are provided on the left and right sides of the connecting seats 4 respectively. The buckles 41 include a locking plate and a buckle head provided at one end of the locking plate. Inside the base shell 1 An installation groove is provided, and wedge-shaped locking blocks 11 are respectively provided on the left and right side walls of the installation groove. When the connecting seat 4 is inserted into the installation groove on the base shell 1, the buckles of the two buckles 41 abut against the inclined surfaces on the two wedge-shaped locking blocks 11, causing the locking plates of the buckles 41 to tilt and deform inward. After the buckles of the buckles 41 pass through the wedge-shaped locking blocks 11, the locking plates reset, causing the two buckles to be locked on the rear side of the two wedge-shaped locking blocks 11. The wedge-shaped locking blocks 11 prevent the connecting seat 4 from being pulled out of the base shell 1, thus realizing the locking between the connecting seat 4 and the base shell 1.

[0032] The connecting seat 4 is provided with a second connecting block 42, wherein there is one second connecting block 42 or two horizontally spaced apart. In this embodiment, it is preferred that the connecting seat 4 is provided with two second connecting blocks 42 horizontally spaced apart.

[0033] A wiring assembly 5 is installed inside the base housing 1. The wiring assembly 5 includes a copper busbar 51, a frame-shaped connector 52 located at the upper and / or lower end of the copper busbar 51, a wire clamping screw 53 that is threaded into the connector 52, and a conductive seat 54 located inside the connector 52. The conductive seat 54 is made of copper and has an arc-shaped groove on its front side. When the end of the wire is inserted into the connector 52, tightening the wire clamping screw 53 will cause its end to abut against the wire. The wire abuts against the conductive seat 54, the conductive seat 54 abuts against the copper busbar 51, and the copper busbar 51 abuts against the connector 52, thereby achieving a fixed connection of the wire.

[0034] When the top cover 2 is placed in front of the base shell 1 and contacts it, the connector 51 and wire screw 53 on the front side of the wiring assembly 5 are partially inserted into the cavity on the rear side of the top cover 2. The connector 51 and / or the wire screw 53 contact the side wall of the cavity or maintain a small gap to limit the up and down movement of the top cover 2 relative to the base shell 1.

[0035] Vertical strip-shaped limiting holes 324 are provided on the upper connecting plate 32 and / or the lower connecting plate 32. In this embodiment, it is preferred that the two connecting plates 32 are respectively provided with vertical strip-shaped limiting holes 324, and the upper cover 2 is provided with limiting posts 24 that cooperate with the strip-shaped limiting holes 324.

[0036] When the upper cover 2 is placed in front of the base shell 1, the push block 3 is pushed down, and the upper inner wall of the strip-shaped limiting hole 324 abuts against the limiting post 24. The push block 3 then moves from the unlocked position to the locked position, causing the first connecting block 30 to move down to the rear of the second connecting block 42 and contact it, thus connecting the upper cover 2 to the base shell 1. Simultaneously, the first snap-fit ​​protrusion 22 engages with the first snap-fit ​​groove 322 to keep the push block 3 in the locked position. When the push block 3 is pushed in the opposite direction, i.e., pushed upwards... When the lower inner wall of the strip-shaped limiting hole 324 abuts against the limiting post 24, the push block 3 moves from the locked position to the unlocked position, and the first connecting block 30 moves upward and is offset from the second connecting block 42, thus releasing the connection between the upper cover 2 and the base shell 1. The upper cover 2 can be removed from the base shell 1. When it moves upward, the first locking protrusion 22 separates from the first locking groove 322. When it moves to the upper position, the second locking protrusion 23 engages with the second locking groove 323 to keep the push block 3 in the unlocked position.

[0037] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A high-current terminal block for push-block unlocking, characterized in that, include: The base shell and the top cover are equipped with a push block that moves up and down on the top cover. A first connecting block is provided on the rear side of the push block, and a connecting seat is provided on the front side of the base shell. A second connecting block is provided on the connecting seat. When the top cover is placed on the front side of the base shell, pushing the push block from the unlocked position to the locked position can move the first connecting block to the rear side of the second connecting block, so that the top cover is connected to the base shell. At the same time, the push block and the top cover are engaged by a first snap-fit ​​protrusion and a first snap-fit ​​groove to keep the push block in the locked position. When the push block is pushed in the opposite direction, it can be moved from the locked position to the unlocked position, releasing the connection between the top cover and the base shell.

2. The high-current terminal block for push-block unlocking according to claim 1, characterized in that, When the push block moves from the locked position to the unlocked position, the push block and the top cover engage with the second locking protrusion and the second locking groove to keep the push block in the unlocked position.

3. A high-current terminal block for push-block unlocking according to claim 1 or 2, characterized in that, A wiring assembly is installed inside the base housing, and part of the wiring assembly is placed into a recess on the rear side of the top cover.

4. A high-current terminal block for push-block unlocking according to claim 1, characterized in that, The push block includes a push head and a connecting plate located at the upper and lower ends of the push head. The push head is movably engaged with the vertical through hole on the upper cover. The connecting plate is located inside the upper cover. The upper cover is provided with multiple mounting buckles for restricting the separation of the connecting plate from it. There are two first connecting blocks. Two second connecting blocks are provided horizontally spaced on the connecting seat. When the push block moves to the locking position, the two first connecting blocks are located behind the two second connecting blocks and contact them.

5. A high-current terminal block for push-block unlocking according to claim 4, characterized in that, The connecting plate is provided with a vertical strip-shaped limiting hole, and the upper cover is provided with a limiting post that cooperates with the strip-shaped limiting hole. When the push block is pushed down, the upper inner wall of the strip-shaped limiting hole abuts against the limiting post, and the push block moves from the unlocked position to the locked position. When the push block is pushed up, the lower inner wall of the strip-shaped limiting hole abuts against the limiting post, and the push block moves from the locked position to the unlocked position.

6. A high-current terminal block for push-block unlocking according to claim 1, characterized in that, The upper cover has two sliding blocks, and the lower front side of the first connecting block is provided with a first inclined surface.

7. A high-current terminal block for push-block unlocking according to claim 4, characterized in that, The front side of the end of the connecting plate is provided with a second inclined surface.

8. A high-current terminal block for push-block unlocking according to claim 2, characterized in that, The first snap-fit ​​protrusion is semi-circular and located on the inner wall of the upper cover. The first snap-fit ​​groove is elongated with a semi-circular cross-section and is located on the front side of the lower end of the push block. The second snap-fit ​​protrusion is semi-circular and located on the inner wall of the upper cover. The second snap-fit ​​groove is elongated with a semi-circular cross-section and is located on the front side of the upper end of the push block.

9. A high-current terminal block for push-block unlocking according to claim 1, characterized in that, The connecting seat is engaged with the base shell.

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