Secondary plug-in of low-voltage drawer cabinet

Abstract

The utility model discloses a secondary plug-in of a low-voltage drawer cabinet, the secondary plug-in of the low-voltage drawer cabinet comprises a unit drawer, a plug fixed in the unit drawer, and a socket inserted in the plug, the socket is provided with a plurality of jacks, the jacks are provided with a plurality of elastic sheets and act on the plug, the socket is provided with a clamping device, and the clamping device is used for clamping the unit drawer. The clamping device comprises a spring, a supporting frame and a clamping assembly, the clamping assembly is arranged on the supporting frame and used for guiding the clamping assembly, and the spring abuts against the supporting frame and the clamping assembly, so that the clamping assembly abuts against the plug and is used for improving the connection stability of the plug and the socket. According to the utility model, the fixation of the plug and the socket is improved through the elastic sheet, the stable connection of the plug and the socket is ensured through the clamping device, the vibration of the unit drawer is absorbed through the spring, the influence of the vibration on the connection of the plug and the socket is avoided, and the product has the advantages of high safety, stable and reliable connection and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to a secondary plug-in unit of a low-voltage drawer cabinet. Background Art

[0002] In the field of low-voltage power distribution and control, drawer-type switchgear is widely used. With the development and progress of science and technology, the existing switchgear shell structure has been improved, and it is safe and reliable to use. The switchgear is stable in use and meets the existing intelligent needs.

[0003] The existing low-voltage drawer cabinet secondary plug-in mainly consists of a plug and a socket when in use. The plug is directly inserted into the socket to complete the isolated plug-in. However, when the low-voltage drawer cabinet is in operation, the cabinet will vibrate due to the operation of electronic equipment and electronic components, thereby causing the plug and socket to separate or loosen, which will lead to circuit failure, malfunction, frequent separation and combination of the plug and socket, and electric arc damage to the surface of the plug, thereby increasing the contact resistance value, causing the plug and socket to heat up rapidly, and severely causing a fire, which greatly increases the safety hazard. Therefore, the applicant has made a beneficial design and found a solution to the above problem. The technical solution to be introduced below is produced in this context. Summary of the invention

[0004] The purpose of the utility model is to overcome the shortcomings of the secondary plug-in design of the above-mentioned traditional low-voltage drawer cabinet and provide a product with high safety and stable and reliable connection.

[0005] To solve the above problems, the utility model adopts the following technical solutions.

[0006] A secondary plug-in unit for a low-voltage drawer cabinet comprises a unit drawer, a plug fixed to the unit drawer, and a socket inserted into the plug, wherein the socket is provided with a plurality of jacks, the jacks are provided with a plurality of springs and act on the plug, the socket is provided with a clamping device, the clamping device comprises a spring, a support frame, and a clamping assembly, the clamping assembly is arranged on the support frame and is used to provide a guiding effect for the clamping assembly, the spring abuts against the support frame and the clamping assembly, so that the clamping assembly abuts against the plug, and is used to improve the connection stability between the plug and the socket.

[0007] Preferably, the number of the jacks is set to at least five, the spring sheets are arranged on both sides of the inner wall of the jack, the shape of the spring sheets is set to be arc-shaped, the top and bottom of the jack are provided with clearance holes, and an elastic part is provided at the entrance of the jack.

[0008] Preferably, the plug is provided with a first terminal row and is located inside the unit drawer.

[0009] Preferably, the socket is provided with a first extension block and a second extension block, the first extension block and the second extension block are provided with mounting holes, and the socket is provided with a second terminal row, which is located behind the second extension block.

[0010] Preferably, the first terminal row and the second terminal row are provided with connection terminals with a corresponding number of jacks.

[0011] Preferably, support plates are provided on both sides of the support frame and fixed on both sides of the socket, the inner wall of the support plate is provided with a limiting groove, and the top of the support frame is provided with at least three guide through holes, and the guide through holes are provided with countersunk holes.

[0012] Preferably, the clamping assembly includes a top plate, a guide column, and a clamping member. Guide blocks are provided on both sides of the top plate and are set in limiting grooves. The guide column is fixed on one side of the top plate and is set in the guide through hole. The clamping member is fixed on the other side of the top plate. The spring is set on the outer wall of the guide column and abuts against the countersunk hole and the top plate, so that the clamping member passes through the clearance through hole and abuts against the plug.

[0013] Preferably, the clamping member is provided with a through hole in a shape matching the plug, and a chamfer is provided at the entrance of the through hole.

[0014] Beneficial effects:

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model improves the fixation of the plug and the socket by means of a spring sheet, ensures the stable connection between the plug and the socket by means of a clamping device, and when the unit drawer generates vibration, the vibration is transmitted to the plug, the plug performs irregular movement in the socket, and the spring is used to absorb and reduce the shock, thereby preventing the vibration from affecting the connection between the plug and the socket, thereby overcoming the problems raised by the background technology and making the product have the advantages of high safety, stable and reliable connection, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a secondary plug-in unit of a low-voltage drawer cabinet according to the utility model;

[0018] Figure 2 This is a schematic diagram of the side cross-sectional structure of a socket of a secondary plug-in unit of a low-voltage drawer cabinet according to the utility model;

[0019] Figure 3 It is a cross-sectional structural diagram of a top view of a socket of a secondary plug-in unit of a low-voltage drawer cabinet according to the utility model;

[0020] Figure 4 The utility model is a secondary plug-in explosion-proof device for a low-voltage drawer cabinet. Figure 1 ;

[0021] Figure 5 The utility model is a secondary plug-in explosion-proof device for a low-voltage drawer cabinet. Figure 2 ;

[0022] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0023] Reference numerals: 1, unit drawer; 2, plug; 3, socket; 4, spring; 5, clamping device; 6, terminal;

[0024] 21. First terminal block;

[0025] 31. jack; 32. clearance through hole; 33. first extension block; 34. second extension block; 35. mounting hole; 36. second terminal row; 37. elastic part;

[0026] 51. Spring; 52. Support frame; 53. Clamping assembly;

[0027] 521, support plate; 522, limiting groove; 523, guide through hole; 524, countersunk hole;

[0028] 531, top plate; 532, guide column; 533, clamping member; 534, guide block;

[0029] 5331, avoidance through hole; 5332, give way chamfer. DETAILED DESCRIPTION

[0030] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left" and "right" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0032] Reference example Figures 1 to 5A secondary plug-in unit of a low-voltage drawer cabinet comprises a unit drawer 1, a plug 2 fixed to the unit drawer 1, and a socket 3 inserted into the plug 2, wherein the socket 3 is provided with a plurality of jacks 31, the jacks 31 are provided with a plurality of springs 4 and act on the plug 2, the socket 3 is provided with a clamping device 535, the clamping device 535 comprises a spring 51, a support frame 52, and a clamping member 533, the clamping member 533 is arranged on the support frame 52, and is used to provide a guiding function for the clamping member 533, the spring 51 abuts against the support frame 52 and the clamping member 533, so that the clamping member 533 abuts against the plug 2, and is used to improve the connection stability between the plug 2 and the socket 3;

[0033] It is worth mentioning that the number of the jacks 31 is set to be at least five, the spring pieces 4 are set on both sides of the inner wall of the jack 31, the shape of the spring pieces 4 is set to be arc-shaped, the top and bottom of the jack 31 are provided with a clearance through hole 32, and the entrance of the jack 31 is provided with an elastic part 37. The jack 31 is used in conjunction with the plug 2, and the spring piece 4 improves the fastening of the plug 2 and the jack 31. The arc design allows the spring piece 4 to store energy and release the reaction force to the plug 2. The clearance through hole 32 is used in conjunction with the clamping member 533, and the elastic part 37 is used in conjunction with the spring piece 4, which further improves the connection stability and reliability of the plug 2;

[0034] It is worth mentioning that the plug 2 is provided with a first terminal row 21 and is located inside the unit drawer 1. The first terminal row 21 is connected to the electronic equipment inside the unit drawer 1;

[0035] It is worth mentioning that the socket 3 is provided with a first extension block 33 and a second extension block 34, the first extension block 33 and the second extension block 34 are provided with mounting holes 35, the socket 3 is provided with a second terminal row 36, and is located behind the second extension block 34, the first extension block 33 and the second extension block 34 are used in conjunction with the mounting holes 35, and the second terminal row 36 is connected to the electrical equipment in the low-voltage drawer cabinet; by providing two mounting holes 35, the socket 3 can be securely fixed inside the cabinet;

[0036] It is worth mentioning that the first terminal row 21 and the second terminal row 36 are provided with the same number of connection terminals 6 as the number of the jacks 31, and the connection terminals 6 are convenient for connection with wires and cables;

[0037] It is worth mentioning that support plates 521 are provided on both sides of the support frame 52 and fixed on both sides of the socket 3. The inner wall of the support plate 521 is provided with a limiting groove 522. The top of the support frame 52 is provided with at least three guide through holes 523. The guide through holes 523 are provided with countersunk holes 524. The support plate 521 provides support for the support frame 52. The limiting grooves 522 limit the range of the top plate 531 to be lifted and lowered. The guide through holes 523 provide a guiding role for the lifting and lowering of the top plate 531. The countersunk holes 524 provide a accommodating space for the compression of the spring 51.

[0038] It is worth mentioning that the clamping assembly 53 includes a top plate 531, a guide column 532, and a clamping member 533. Guide blocks 534 are provided on both sides of the top plate 531 and are arranged in the limiting groove 522. The guide column 532 is fixed to one side of the top plate 531 and is arranged in the guide through hole 523. The clamping member 533 is fixed to the other side of the top plate 531. The spring 51 is arranged on the outer wall of the guide column 532 and abuts against the countersunk hole 524 and the top plate 531, so that the clamping member 533 passes through the clearance through hole 32 and abuts against the plug 2. The reaction force of the spring 51 is transmitted to the clamping member 533 through the top plate 531. The guide block 534 is used in conjunction with the limiting groove 522, and the guide column 532 is used in conjunction with the guide through hole 523. The guide column 532 also prevents the spring 51 from falling off. The spring 51 applies a reaction force to the clamping member 533 and absorbs the vibration generated by the plug 2.

[0039] It is worth mentioning that the clamping piece 533 is provided with a through hole 5331 which matches the shape of the plug 2, and a chamfer 5332 is provided at the entrance of the through hole 5331. The through hole 5331 increases the contact area with the plug 2 and improves the friction. The chamfer 5332 facilitates the plug 2 to enter between the clamping pieces 533 and reduces the wear between the two.

[0040] The use principle of the utility model is now described as follows:

[0041] When the unit drawer 1 enters the drawer groove of the low-voltage drawer cabinet, the plug 2 enters the socket 31, and the plug 2 squeezes the elastic part 37, so that the elastic part 37 stores energy and releases the reaction force to the plug 2. This is the first fixed point. When the plug 2 enters between the spring pieces 4, the arc of the spring piece 4 is compressed and moves toward the side wall direction of the socket 31, so that the spring piece 4 stores energy. This is the second fixed point. When the plug 2 abuts against the yield chamfer 5332 and moves on the yield chamfer 5332, the clamping member 533 is gradually opened, so that the clamping member 533 moves upward, and the guide block 534 and the top plate 531 move upward. The pitch of the spring 51 is compressed and in an energy storage state. When the plug 2 enters the avoidance hole 5331, the spring 51 releases the reaction force to push the top plate 531, the guide block 534, and the clamping member 533 to sink, so that the avoidance hole 32 is tightly against the plug 2. This is the third fixed point. Through the design of the above three fixed points, the connection stability between the plug 2 and the socket 3 is improved. When the unit drawer 1 vibrates and transmits it to the plug 2, the plug 2 performs irregular movement in the socket 31, which is absorbed and shock-absorbing by the spring 51 to prevent the vibration from affecting the connection between the plug 2 and the socket 3.

[0042] The above design scheme can make the product have the advantages of high safety and stable and reliable connection.

[0043] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A secondary plug-in unit of a low-voltage drawer cabinet, comprising a unit drawer (1), a plug (2) fixed to the unit drawer (1), and a socket (3) inserted into the plug (2), characterized in that: The socket (3) is provided with a plurality of jacks (31), the jacks (31) are provided with a plurality of spring sheets (4) and act on the plug (2), the socket (3) is provided with a clamping device (5), the clamping device (5) comprises a spring (51), a support frame (52), and a clamping assembly (53), the clamping assembly (53) is arranged on the support frame (52) and is used to provide a guiding function for the clamping assembly (53), the spring (51) abuts against the support frame (52) and the clamping assembly (53), so that the clamping assembly (53) abuts against the plug (2), so as to improve the connection stability between the plug (2) and the socket (3).

2. The secondary plug-in unit of the low-voltage drawer cabinet according to claim 1, characterized in that: The number of the insertion holes (31) is set to be at least five, the spring pieces (4) are arranged on both sides of the inner wall of the insertion hole (31), the shape of the spring pieces (4) is set to be arc-shaped, the top and bottom of the insertion hole (31) are provided with clearance holes (32), and the entrance of the insertion hole (31) is provided with an elastic part (37).

3. The secondary plug-in unit of the low-voltage drawer cabinet according to claim 2, characterized in that: The plug (2) is provided with a first terminal row (21) and is located inside the unit drawer (1).

4. The secondary plug-in unit of the low-voltage drawer cabinet according to claim 3 is characterized in that: The socket (3) is provided with a first extension block (33) and a second extension block (34); the first extension block (33) and the second extension block (34) are provided with mounting holes (35); the socket (3) is provided with a second terminal row (36) which is located behind the second extension block (34).

5. The secondary plug-in unit of the low-voltage drawer cabinet according to claim 4, characterized in that: The first terminal row (21) and the second terminal row (36) are provided with connection terminals (6) of a number corresponding to the number of jacks (31).

6. The secondary plug-in unit of the low-voltage drawer cabinet according to claim 2, characterized in that: Support plates (521) are provided on both sides of the support frame (52) and are fixed on both sides of the socket (3); the inner wall of the support plate (521) is provided with a limiting groove (522); the top of the support frame (52) is provided with at least three guide through holes (523); and the guide through holes (523) are provided with countersunk holes (524).

7. The secondary plug-in unit of the low-voltage drawer cabinet according to claim 6, characterized in that: The clamping assembly (53) comprises a top plate (531), a guide column (532), and a clamping member (533). Guide blocks (534) are provided on both sides of the top plate (531) and are arranged in the limiting groove (522). The guide column (532) is fixed to one side of the top plate (531) and is arranged in the guide through hole (523). The clamping member (533) is fixed to the other side of the top plate (531). The spring (51) is arranged on the outer wall of the guide column (532) and abuts against the countersunk hole (524) and the top plate (531), so that the clamping member (533) passes through the clearance through hole (32) and abuts against the plug (2).

8. The secondary plug-in unit of the low-voltage drawer cabinet according to claim 7, characterized in that: The clamping member (533) is provided with a through hole (5331) in the shape of the anastomotic plug (2), and a chamfer (5332) is provided at the entrance of the through hole (5331).

Images