Quick connector

Abstract

The utility model relates to the technical field of electric connectors, in particular to a quick connector which comprises a connector body, the connector body comprises a connecting end used for being connected with a circuit breaker and a plugging end used for being connected with a wiring copper bar on a bus adapter, the connecting end and the plugging end are integrally formed in a bending mode, and the connecting end is connected with the wiring copper bar. The plugging end comprises a first clamping piece and a second clamping piece, the first clamping piece and the second clamping piece are symmetrically arranged on the two sides of the connecting end, the first clamping piece and the second clamping piece are provided with a first clamping groove and a second clamping groove respectively, and the first clamping groove and the second clamping groove are used for simultaneous plugging of wiring copper bars. According to the utility model, the connection structure of the wiring copper column is optimized through the connector which can be rapidly plugged, the connector is a detachable independent connector, the connection direction can be changed through bending, the connector is connected with the wiring copper bar in a plugging manner, and the connection steps are simple.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric connection spare, especially to a quick connector. BACKGROUND

[0002] Busbar system is mainly applied to low-voltage power distribution cabinet, and the incoming and outgoing line circuit adopts holeless electrical installation technology, and the switch is connected with the busbar through a busbar adapter, and the distribution busbar is both a conductor and a support of electrical components and is enclosed behind, wherein the busbar adapter is a connecting device between the circuit breaker and the busbar copper bar, and its function is to connect the electrical components on the live copper bar without connecting the incoming cable, and the disassembly and maintenance are very convenient.

[0003] The busbar adapter is provided with a wiring copper bar, one end of the wiring copper bar is connected with the busbar through a hook, and the other end is connected with the incoming end of the circuit breaker through a wiring copper column, and in the prior art, the wiring copper column and the wiring copper bar are usually integrally formed or welded, and the wiring copper column is fixedly connected with the incoming end of the circuit breaker through a screw, the connection direction of the wiring copper column cannot be changed, and the connection steps with the circuit breaker are complicated, so a quick connector is needed to optimize the connection structure of the wiring copper column. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a kind of quick connectors, and the utility model discloses the connection structure of wiring copper column is optimized by the connector of quick insertion, and the connector is detachable independent connecting piece, the connection direction is changed by bending, and the connector is connected with wiring copper bar insertion, and connection step is simple.

[0005] The technical scheme adopted by the utility model is as follows: a kind of quick connector, including connector body, the connector body includes the connecting end for being connected with circuit breaker and the insertion end for being connected with the wiring copper bar on busbar adapter, the connecting end and insertion end are integrally bent and formed, the insertion end includes first clamping piece and second clamping piece, the first clamping piece and second clamping piece are symmetrically arranged on the two sides of connecting end, and first clamping groove and second clamping groove are respectively set on the first clamping piece and second clamping piece, the first clamping groove and second clamping groove are inserted with wiring copper bar simultaneously.

[0006] The first clamping groove and second clamping groove extend to connecting end, and the two side edges of the first clamping groove and second clamping groove are provided with guide bevels.

[0007] The two side inner walls of the first clamping groove and second clamping groove are recessed with deformation accommodation grooves.

[0008] It also includes two card springs respectively clamped with the first clamping piece and the second clamping piece, and the two card springs are clamped to the inside of the corresponding clamping groove from the two ends of the corresponding clamping piece away from the connecting end.

[0009] The retaining spring includes an elastic connecting piece and two buckles that are bent and disposed at both ends of the elastic connecting piece. The elastic connecting pieces of the two retaining springs are respectively attached to the side of the corresponding clamping piece. The outer walls of both ends of the first clamping piece and the second clamping piece are provided with slots for the buckles to be inserted.

[0010] The end of the buckle also extends to a locking block that abuts against the inner wall of the corresponding clip.

[0011] The middle section of the elastic connecting piece is arched towards the connecting end.

[0012] The inner wall of the elastic connecting piece has a disassembly stop protrusion.

[0013] The beneficial effects of this utility model are as follows: By setting a symmetrical clamping plate structure with a first clamping groove and a second clamping groove, the copper busbar can be quickly and simultaneously inserted into the clamping grooves on both sides, realizing a plug-in connection with the busbar adapter. This optimizes the cumbersome steps of welding the traditional copper post to the copper busbar, significantly improves assembly efficiency, and facilitates quick on-site installation and maintenance. The double clamping plate and double clamping groove design can clamp the copper busbar evenly and tightly, ensuring the contact area and contact pressure of the electrical connection, effectively reducing contact resistance, and ensuring the conductivity stability and reliability of long-term operation. The connection end with the bent plug-in end removes the restriction on the connection direction of the traditional copper post, making the circuit breaker more adaptable to the direction when connected to the busbar system, facilitating the layout and installation in the distribution cabinet. The circuit breaker can also be quickly connected and disconnected from the busbar adapter through the connector. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.

[0015] Fig. 1 This is a schematic diagram of the structure of this utility model;

[0016] Fig. 2 This is a schematic diagram of the connector body in this utility model;

[0017] Fig. 3 This is a schematic diagram of the snap ring structure in this utility model;

[0018] Fig. 4 This is a schematic diagram of the structure of this utility model installed between the circuit breaker and the busbar adapter;

[0019] In the diagram, 1-connection end, 2-plug-in end, 3-first clamping piece, 4-second clamping piece, 5-first clamping groove, 6-second clamping groove, 7-guide slope, 8-deformation clearance groove, 9-spring clip, 10-elastic connecting piece, 11-buckle, 12-slot, 13-block, 14-arch, 15-disassembly stop, 16-circuit breaker, 17-busbar adapter, 18-copper busbar. Detailed Implementation

[0020] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0021] It should be noted that all uses of "first" and "second" in the embodiments of this utility model are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.

[0022] The directional and positional terms used in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," "outer," "top," "bottom," and "side," are merely for reference to the accompanying drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, and not for limiting the scope of protection of this utility model.

[0023] like Figs. 1 to 4 As shown, this is an embodiment of the present invention. A quick connector includes a connector body, which includes a connection end 1 for connecting to a circuit breaker and a plug-in end 2 for connecting to a copper busbar on a busbar adapter. The connection end 1 and the plug-in end 2 are integrally bent. The plug-in end 2 includes a first clamping piece 3 and a second clamping piece 4. The first clamping piece 3 and the second clamping piece 4 are symmetrically arranged on both sides of the connection end 1, and the first clamping piece 3 and the second clamping piece 4 are respectively provided with a first clamping groove 5 and a second clamping groove 6. The first clamping groove 5 and the second clamping groove 6 are for simultaneous insertion of the copper busbar.

[0024] The beneficial effects of this design are as follows: By using a symmetrical clamping structure with a first clamping slot and a second clamping slot, the copper busbar can be quickly and simultaneously inserted into the clamping slots on both sides, achieving a plug-in connection with the busbar adapter. This optimizes the cumbersome steps of traditionally welding copper posts to the copper busbar, significantly improving assembly efficiency and facilitating rapid on-site installation and maintenance. The double-clamping, double-slot design ensures even and tight clamping of the copper busbar, guaranteeing the contact area and contact pressure of the electrical connection, effectively reducing contact resistance, and ensuring long-term conductive stability and reliability. The bent connection end removes the restriction on connection direction imposed by traditional copper posts, giving the circuit breaker better directional adaptability when connected to the busbar system, facilitating layout and installation in the distribution cabinet. The circuit breaker can also be quickly connected and disconnected from the busbar adapter via connectors. In the attached diagram, the circuit breaker is labeled 16, the busbar adapter is labeled 17, and the copper busbar is labeled 18.

[0025] Furthermore, the first clamping groove 5 and the second clamping groove 6 both extend to the connecting end 1, and both sides of the first clamping groove 5 and the second clamping groove 6 are provided with guide slopes 7.

[0026] The beneficial effects of this design are as follows: By extending both the first and second clamping slots to the connection end connected to the circuit breaker, the insertion length between the connector body and the copper busbar is significantly increased. This not only enhances the stability and mechanical strength of the clamping, preventing loosening during use, but also greatly increases the effective electrical contact area, thereby further reducing contact resistance, improving current carrying capacity and long-term operational reliability. Guide slopes are provided on both sides of the first and second clamping slots. This structure can automatically center and guide the copper busbar during insertion, making the insertion operation smoother and less strenuous. It effectively avoids insertion difficulties caused by alignment deviations or damage to the clamps and copper busbar edges, greatly simplifying the assembly process and improving the user experience and efficiency.

[0027] Furthermore, both sides of the inner walls of the first clamping groove 5 and the second clamping groove 6 are recessed with deformation relief grooves 8.

[0028] The beneficial effects of this design are as follows: By providing deformation relief grooves on both inner walls of the first and second clamping grooves, this structure provides an outward elastic deformation space for the clamping end when clamping the copper busbar. This allows the clamping piece to more closely adapt to copper busbars of different thicknesses or with slight tolerances, generating uniform and lasting contact pressure. This significantly improves the tightness and anti-loosening ability of the connection, ensuring the long-term stability and reliability of the electrical connection. The design of the deformation relief groove also provides moderate elastic buffering during the clamping process. When inserting the copper busbar, a smoother, progressive resistance can be felt, resulting in a better operating experience. When pulling out, it effectively avoids plastic deformation or damage to the clamping piece due to instantaneous stress concentration, improving the protection of the clamping piece and extending the service life of the connector.

[0029] Further, it also includes two retaining springs 9 that respectively engage with the first clamping piece 3 and the second clamping piece 4. The two retaining springs 9 clamp the two ends of the corresponding clamping pieces away from the connecting end 1 toward the inside of the corresponding clamping groove.

[0030] The beneficial effects of this design are as follows: By setting a retaining spring on the first and second clamping plates respectively, a continuous and stable external mechanical clamping force is provided for the clamping plates. This force acts directly on the end of the clamping plate away from the connection end, which can effectively compensate for the stress relaxation that may occur due to the elasticity of the material. This resists the risk of connection loosening caused by vibration, thermal cycling or long-term use, and significantly enhances the long-term stability and safety of the electrical connection. The concentrated clamping force applied by the retaining spring allows the clamping plates to more firmly adapt to different specifications of copper busbars. At the same time, this external locking method distributes the bending stress on the end of the clamping plate near the connection end, reducing the risk of plastic deformation or fatigue damage to the clamping plates due to repeated insertion and removal or overload insertion, thereby protecting the core structure of the connector body and extending its overall service life.

[0031] Further, the retaining spring 9 includes an elastic connecting piece 10 and two buckles 11 that are bent and disposed at both ends of the elastic connecting piece 10. The elastic connecting pieces 10 of the two retaining springs 9 are respectively attached to the side of the corresponding clamping piece. The outer walls of both ends of the first clamping piece 3 and the second clamping piece 4 are provided with slots 12 for the buckles 11 to be inserted.

[0032] The beneficial effects of this design are as follows: By creating specialized slots on the outer walls of both ends of the clamping plate and precisely embedding the snap fasteners at both ends of the retaining spring into these slots, a mechanical interlocking structure is formed. This design ensures that the retaining spring has a unique and fixed installation position on the clamping plate, effectively preventing the retaining spring from sliding axially or rotating circumferentially along the clamping plate during long-term use or under vibration. This ensures that the direction and position of the clamping force applied are consistent, greatly improving the stability of the connection. The elastic connecting piece of the retaining spring fits closely to the side of the clamping plate over a large area, allowing the applied clamping force to be distributed more evenly throughout the clamping area of ​​the clamping plate, avoiding local stress concentration. This protects the clamping plate structure and improves the clamping effect. At the same time, the cooperation between the snap fasteners and the slots provides a clear installation feel and positioning indication, making the installation and removal of the retaining spring intuitive, simple, and reliable, requiring no additional tools and significantly improving the convenience of on-site installation and maintenance.

[0033] Furthermore, the end of the buckle 11 extends to a locking block 13 that abuts against the inner wall of the corresponding clip.

[0034] The beneficial effects of this design are as follows: by extending a locking block at the end of the buckle to abut against the inner wall of the clip, this structure adds a radial mechanical barrier to the original lateral engagement of the buckle and the slot. The locking block, like a hook, fastens to the inner wall of the clip, effectively resisting forces from all directions that may cause the snap ring to loosen unexpectedly. This achieves absolute locking of the snap ring under harsh working conditions such as vibration and impact, fundamentally eliminating the risk of connection failure due to snap ring detachment.

[0035] Furthermore, the middle section of the elastic connecting piece 10 is an arch 14 that arches towards the connecting end 1.

[0036] The beneficial effects of this design are as follows: the arch shape essentially forms a pre-compressed elastic energy storage structure, optimizes stress distribution, effectively alleviates material fatigue, and the arch shape arches towards the connection end, avoiding obstruction of the wiring copper busbar insertion.

[0037] As a further feature, the inner wall of the elastic connecting piece 10 has a disassembly block 15 protruding from it.

[0038] The beneficial effects of this design are as follows: the disassembly abutment protruding on the inner wall of the elastic connecting piece provides a clear and reliable dedicated force point for disassembly operations. When tools such as screwdrivers are needed to disassemble the snap ring, the tool can be pressed against the disassembly abutment and pried, causing the elastic connecting piece to undergo controllable elastic deformation, thereby easily releasing the double locking of the snap and the snap block, achieving safe, fast and non-destructive disassembly of the snap ring. This design perfectly solves the contradiction between a highly reliable locking structure and convenient maintainability, allowing the connector to maintain excellent performance even after multiple assembly and disassembly cycles.

[0039] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A quick connector characterized by: The utility model provides a connector body, the connector body includes the connecting end (1) for connecting with circuit breaker and the plug end (2) for connecting with the wiring copper bar on bus adapter, the connecting end (1) is integrally bent and formed with the plug end (2), the plug end (2) includes first clamping piece (3) and second clamping piece (4), first clamping piece (3) and second clamping piece (4) are symmetrically arranged on both sides of connecting end (1), and first clamping piece (3) and second clamping piece (4) are provided with first clamping groove (5) and second clamping groove (6) respectively, and first clamping groove (5) and second clamping groove (6) are used for the wiring copper bar to be inserted simultaneously.

2. A quick connector according to claim 1, wherein: The first clamping groove (5) and the second clamping groove (6) extend to the connecting end (1), and the two side edges of the first clamping groove (5) and the second clamping groove (6) are provided with guide inclined surfaces (7).

3. A quick connector according to claim 1, wherein: The two side inner walls of the first clamping groove (5) and the second clamping groove (6) are recessed with deformation accommodation grooves (8).

4. A quick connector according to claim 1, wherein: The utility model also includes two clamping springs (9) respectively clamped with the first clamping piece (3) and the second clamping piece (4), and the two ends of the clamping spring (9) away from the connecting end (1) are clamped towards the inside of the corresponding clamping groove.

5. A quick connector according to claim 4, wherein: The clamping spring (9) includes an elastic connecting piece (10) and two clamping buckles (11) respectively bent at the two ends of the elastic connecting piece (10), the elastic connecting piece (10) of the two clamping springs (9) is respectively attached to the side surface of the corresponding clamping piece, and the two end outer walls of the first clamping piece (3) and the second clamping piece (4) are provided with clamping grooves (12) for embedding the clamping buckle (11).

6. A quick connector according to claim 5, wherein: The end of the clamping buckle (11) further extends a clamping block (13) abutting against the inner wall of the corresponding clamping piece.

7. A quick connector according to claim 5, wherein: The middle section of the elastic connecting piece (10) is arched towards the connecting end (1).

8. A quick connector according to claim 7, wherein: The inner wall of the elastic connecting piece (10) is provided with a dismounting abutting block (15).

Images