Low-voltage switchgear no-drill copper busbar quick-connect socket device

Abstract

This invention relates to the field of copper busbar conductive connection technology, specifically to a quick-connect socket device for low-voltage switchgear copper busbars without drilling, comprising a connecting clip, terminals, and a locking mechanism for the connecting clip. The connecting clip includes four clamping plates forming a rectangular cavity. Each clamping plate has a deformation edge at one end, located between every two adjacent clamping plates, and the deformation edge has a trapezoidal cross-section. This invention's quick-connect socket device for low-voltage switchgear copper busbars, by using a four-sided clamping method, simultaneously presses down on all four surfaces of the copper busbar. This increases the conductive area between the copper busbar and the clamping plates, balances the force exerted by the clamping plates on the copper busbar, preventing damage due to uneven stress. Furthermore, the connecting clip can be directly installed and fixed to the copper busbar without power interruption, eliminating the need for drilling holes in the copper busbar, thus improving power supply reliability, enabling rapid assembly, increasing work efficiency, and ensuring worker safety.

Description

Technical Field

[0001] This invention relates to the field of copper busbar conductive connection technology, specifically to a device for quick connection of a low-voltage switchgear copper busbar to a socket without drilling. Background Technology

[0002] Low-voltage switchgear, as the core equipment for low-voltage power distribution in power systems, has been widely adopted in power grid scenarios such as industrial plants, commercial complexes, residential communities, and municipal infrastructure. Its operational stability directly affects the power supply reliability of various power-consuming units. The structure of low-voltage switchgear is complex and precise, mainly composed of a cabinet (providing protection and installation framework), insulation components (ensuring electrical safety isolation), a busbar system (the core conductive circuit, with copper busbars as the main carrier), cables (connecting external electrical equipment), functional units (such as circuit breakers, contactors, and other control components), and a door panel (facilitating maintenance and operation). Its core function is to distribute and regulate the low-voltage electrical energy after it has been stepped down by a transformer according to the needs of different power-consuming units, ensuring that power resources are efficiently and safely delivered to the end loads.

[0003] In the busbar system of low-voltage switchgear, copper busbars (also known as copper busbars or copper current busbars) are the core components for constructing circuit paths and connecting various electrical equipment due to copper's excellent conductivity, good heat dissipation, and high mechanical strength. Copper busbars are long copper conductors with a rectangular cross-section, capable of stable transmission of large currents within a limited space, and are widely used in power distribution and electrical fields. They are a key component ensuring the power supply efficiency and safety of low-voltage switchgear.

[0004] In the production and use of low-voltage switchgear, to meet users' subsequent cable connection needs, copper busbars are usually pre-punched before leaving the factory. These pre-drilled holes allow users to easily connect cable terminals to the busbars with bolts, enabling circuit expansion or equipment connection. However, in actual use, the target cable connection location may not match the pre-punched hole location on the copper busbar. Furthermore, if users need to add connection points later, there may be insufficient pre-punched holes. In such cases, users must perform secondary punching on the copper busbars on-site. This process is not only cumbersome, but also prevents the low-voltage switchgear from quickly connecting to an emergency generator in case of equipment or line failures, power outages, or other reasons, hindering rapid power restoration and making it difficult to meet flexible and efficient power distribution requirements. Summary of the Invention

[0005] This invention provides a quick-connect socket device for low-voltage switchgear without drilling copper busbars. It allows for the direct installation of quick-connect sockets on the copper busbars of low-voltage switchgear without power interruption, ensuring power supply. The device is simple to operate, eliminating the need for drilling holes in the copper busbars and solving the problem of cumbersome drilling operations and inconvenience for quick assembly and use in existing copper busbar systems.

[0006] The low-voltage switchgear no-drill copper busbar quick-connect socket device of the present invention adopts the following technical solution: The low-voltage switchgear no-drill copper busbar quick-connect socket device is used to connect copper busbars and terminals. The low-voltage switchgear no-drill copper busbar quick-connect socket device includes a connecting clip, which is elastic, and the terminals are locked to the connecting clip. The length direction of the copper busbar is referred to as the first direction, and the cross-section of the copper busbar perpendicular to the first direction is rectangular. The connecting clip can be sleeved on the copper busbar along the first direction. The connecting clip includes four clamps, which are connected end to end around the first direction and form a rectangular cavity. The cross-sectional area of ​​the rectangular cavity perpendicular to the first direction is smaller than the cross-sectional area of ​​the copper busbar perpendicular to the first direction. Each clamp has a deformation edge at one end around the first direction. The deformation edge is located between every two adjacent clamps around the first direction, and the cross-section of the deformation edge perpendicular to the first direction is trapezoidal. Every two adjacent clamps around the first direction are connected to the waist of the deformation edge. The deformation edge on one clamp is engaged with another clamp adjacent to it around the first direction.

[0007] In this structure, the elastic deformation of the connecting clip and the four-sided clamping structure allow for quick installation at any position on the copper busbar, solving the problems of mismatched pre-punched hole positions and insufficient quantity. The connecting clip can be assembled directly without power interruption in the low-voltage cabinet, ensuring stable power supply.

[0008] Preferably, the wall thickness of the deformation edge is less than the wall thickness of the clamping plate. By making the wall thickness of the deformation edge less than the wall thickness of the clamping plate, the structure of the connecting clamp is further optimized, making it easier to open the connecting clamp and insert the copper busbar.

[0009] More preferably, the low-voltage switchgear no-drill copper busbar quick-connect socket device also includes a locking clip, which is elastic and includes a main clamp body and two pressing plates. The structure of the main clamp body is the same as that of the connecting clamp. The cross-sectional area of ​​the rectangular cavity of the main clamp body perpendicular to the first direction is larger than the cross-sectional area of ​​the copper busbar perpendicular to the first direction. Each deformation edge of the main clamp body is provided with an adjusting element, and each adjusting element on the deformation edge can make the other clamp plate adjacent to it around the first direction fit tightly against the surface of the copper busbar. The two pressing plates are respectively installed at both ends of the main clamp body in the thickness direction of the copper busbar, and the two pressing plates can respectively press the two clamp plates of the connecting clamp in the thickness direction of the copper busbar.

[0010] Furthermore, the adjusting component includes an adjusting bolt, which passes sequentially through the upper and lower bottom edges of the deformation edge corresponding to it, and the adjusting bolt is locked to the upper or lower bottom edge of the deformation edge by a nut.

[0011] Furthermore, the nut is fixed to the upper or lower bottom edge of the deformation edge.

[0012] Furthermore, a housing is snapped onto the terminal block, and a space is defined between the housing and the connector clip to allow the crimping plate to pass through.

[0013] The locking clip in this structure can provide adjustable clamping force to the copper busbar, and together with the clamping plate, it transmits the pressure to the connecting clip. At the same time, the adjustment bolts can compensate for deformation and loosening, which not only ensures the reliable connection between the copper busbar and the connecting clip, but also prevents the connecting clip from loosening due to creep, thus improving the overall connection stability and service life.

[0014] Furthermore, there are two locking clips, which are located on both sides of the connecting clip in the first direction.

[0015] Furthermore, the arrangement of the clamping plates on the connecting clamp and the deformations connected to the clamping plates along the first direction is opposite to the arrangement of the clamping plates on the main clamp body and the deformations connected to the clamping plates along the first direction.

[0016] By adopting the above preferred scheme, the connecting clamp and the clamping plate and deformation edge of the main clamp are arranged in opposite directions. After the two are sleeved on the copper busbar, the corresponding deformation edges apply force to the two ends of the four surfaces of the copper busbar, so as to achieve a balanced distribution of pressure, avoid pressure concentration and damage to the copper busbar, and play a protective role.

[0017] Furthermore, the connecting clip is made of a metal conductor, while the locking clip is made of a non-metallic insulating material.

[0018] Furthermore, the terminal block is locked to the connector clip by a locking element.

[0019] The beneficial effects of this invention are as follows: The low-voltage switchgear copper busbar quick-connect socket device of this invention, by setting a connecting clip, uses a four-sided clamping method to simultaneously press the four surfaces of the copper busbar, which can not only increase the conductive area between the copper busbar and the clamp plate, but also balance the force of the clamp plate on the copper busbar, preventing damage to the copper busbar due to uneven force. Moreover, the connecting clip can be directly installed and fixed on the copper busbar without interrupting power supply, without drilling holes in the copper busbar, thus improving power supply reliability, enabling rapid assembly, improving work efficiency, and ensuring the safety of operators.

[0020] Furthermore, by using the locking clip and connecting clip together, the locking clip ensures the clamping force with the copper busbar, and the clamping force of the locking clip is transmitted to the connecting clip through the pressing plate, making the connection more reliable. When the deformation of the locking clip becomes loose due to long-term use, the clamping force of the locking clip on the copper busbar can be increased by further rotating the adjusting bolt, ensuring the strength of the connection. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure and copper busbar of Embodiment 1 of the present invention after installation;

[0023] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0024] Figure 3 This is a front view of the overall structure and copper busbar of Embodiment 1 of the present invention after installation;

[0025] Figure 4 This is a cross-sectional view of the overall structure and copper busbar of Embodiment 1 of the present invention after installation;

[0026] Figure 5 This is a cross-sectional view of the overall structure and copper busbar of Embodiment 1 of the present invention in another location after installation.

[0027] Figure 6 This is a front view of the connecting clip according to Embodiment 1 of the present invention;

[0028] Figure 7 This is a front view of the locking clip according to Embodiment 1 of the present invention;

[0029] Figure 8 This is a schematic diagram of the locking clip according to Embodiment 1 of the present invention;

[0030] Figure 9 This is a schematic diagram of the overall structure and copper busbar of Embodiment 2 of the present invention after installation;

[0031] Figure 10 This is a schematic diagram of the overall structure of Embodiment 2 of the present invention;

[0032] Figure 11 This is a cross-sectional view of the overall structure and copper busbar of Embodiment 2 of the present invention before installation;

[0033] Figure 12 This is a cross-sectional view of the overall structure and copper busbar of Embodiment 2 of the present invention after installation.

[0034] In the diagram: 100, copper busbar; 101, first surface; 102, second surface; 103, third surface; 104, fourth surface; 200, terminal block; 210, locking element; 220, housing; 300, connecting clip; 310, clamping plate; 311, first plate; 312, second plate; 313, third plate; 314, fourth plate; 320, rectangular cavity; 330, deformation edge; 331, first edge; 332, second edge; 333, third edge; 334 400. Fourth edge; 410. Locking clamp; 411. Main clamp body; 412. Fifth plate; 413. Sixth plate; 414. Seventh plate; 415. Fifth edge; 416. Sixth edge; 417. Seventh edge; 418. Eighth edge; 420. Pressing plate; 430. Adjusting bolt; 440. Nut; 500. Connecting plate; 600. Quick-connect clamp; 610. Clamping opening; 611. Waist-shaped groove; 612. Connecting bolt; 613. Abutment bolt. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] An embodiment of the low-voltage switchgear no-drill copper busbar quick-connect socket device of the present invention, such as... Figures 1 to 12 As shown.

[0037] Example 1:

[0038] See Figures 1 to 8 As shown, the low-voltage switchgear no-drill copper busbar quick-connect socket device is used to connect the copper busbar 100 to the terminal block 200. The copper busbar 100 is installed on the low-voltage switchgear with bolts. The low-voltage switchgear no-drill copper busbar quick-connect socket device includes a connecting clip 300. The connecting clip 300 is elastic and is made of a metal conductor, specifically copper or silver. Given that copper's conductivity is second only to silver and its cost is lower, it is usually the preferred material.

[0039] The terminal 200 is locked to the connecting clamp 300 by a locking element 210, which is a locking bolt. The length direction of the copper busbar 100 is referred to as the first direction, and the cross-section of the copper busbar 100 perpendicular to the first direction is rectangular. The connecting clamp 300 can be fitted onto the copper busbar 100 along the first direction.

[0040] The connecting clamp 300 includes four clamping plates 310, which are connected end to end in a first direction to form a rectangular cavity 320. The cross-sectional area of ​​the rectangular cavity 320 perpendicular to the first direction is smaller than the cross-sectional area of ​​the copper busbar 100 perpendicular to the first direction. Each clamping plate 310 has a deformation edge 330 at one end in the first direction. The deformation edge 330 is located between every two adjacent clamping plates 310 in the first direction, and the cross-section of the deformation edge 330 perpendicular to the first direction is trapezoidal. Every two adjacent clamping plates 310 in the first direction are connected to the waist of the deformation edge 330. The deformation edge 330 on one clamping plate 310 is engaged with the other clamping plate 310 adjacent to it in the first direction.

[0041] Specifically, the dimension of the rectangular cavity 320 on the connector 300 in the thickness direction of the copper busbar 100 is referred to as the first dimension, and the dimension of the copper busbar 100 in the thickness direction is referred to as the second dimension. The difference between the first dimension and the second dimension is 1mm to 2mm. The dimension of the rectangular cavity 320 on the connector 300 in the width direction of the copper busbar 100 is referred to as the third dimension, and the dimension of the copper busbar 100 in the width direction is referred to as the fourth dimension. The difference between the third dimension and the fourth dimension is 1mm to 2mm. This range of differences ensures that the connector 300 generates sufficient contact pressure within its elastic deformation range, while also facilitating installation.

[0042] Furthermore, the wall thickness of the deformation line 330 is less than the wall thickness of the clamping plate 310, which makes the deformation line 330 more prone to deformation when the position where the deformation line 330 is engaged with the clamping plate 310 is opened and the deformation line 330 is rotated around the first direction to the side away from the clamping plate 310 it is engaged with.

[0043] In this embodiment, by setting a connecting clip 300, when connecting the terminal 200 to the copper busbar 100, the terminal 200 and the connecting clip 300 are locked together first, and then the position where the deformation axis 330 is engaged with the clamp 310 is opened, and the deformation axis 330 is rotated around the first direction to the side away from the clamp 310 with which it is engaged.

[0044] For ease of explanation, the four clamping plates 310 of the connecting clamp 300 are referred to as the first plate 311, the second plate 312, the third plate 313, and the fourth plate 314, respectively. The deformation edge 330 on the first plate 311 is referred to as the first edge 331, the deformation edge 330 on the second plate 312 is referred to as the second edge 332, the deformation edge 330 on the third plate 313 is referred to as the third edge 333, and the deformation edge 330 on the fourth plate 314 is referred to as the fourth edge 334.

[0045] See Figure 6As shown, when the snap-fit ​​position between the first edge 331 and the fourth plate 314 is opened, causing the first edge 331 to rotate clockwise around the first direction away from the fourth plate 314, the first edge 331 will drive the first plate 311 to rotate clockwise. The first plate 311 will drive the second plate 312 to rotate clockwise through the second edge 332. The second plate 312 will drive the third plate 313 to rotate clockwise through the third edge 333. The third plate 313 will drive the fourth plate 314 to rotate clockwise through the fourth edge 334. This causes the connecting clamp 300 to deform as a whole until the opening between the first edge 331 and the fourth plate 314 can fit the copper busbar 100. After the copper busbar 100 enters the rectangular cavity 320, the first edge 331 and the fourth plate 314 snap-fit ​​together again.

[0046] Since the cross-sectional area of ​​the rectangular cavity 320 perpendicular to the first direction is smaller than that of the copper busbar 100 perpendicular to the first direction in its natural state, when the connecting clamp 300 is fitted onto the copper busbar 100, the four sides of the copper busbar 100 will respectively press against the four clamping plates 310, thereby causing each clamping plate 310 to press against the deformation edge 330 on the other clamping plate 310 adjacent to it around the first direction. That is, the first plate 311 presses against the second edge 332, the second plate 312 presses against the third edge 333, the third plate 313 presses against the fourth edge 334, and the fourth plate 314 presses against the first edge 331, causing the four deformation edges 330 to deform. The deformation of the deformation edges 330 will exert a reverse force on the clamping plates 310, thereby making all four clamping plates 310 fit tightly against the surface of the copper busbar 100.

[0047] By using a four-sided clamping method, the four surfaces of the copper busbar 100 are pressed simultaneously. This not only increases the conductive area between the copper busbar 100 and the clamping plate 310, but also balances the force exerted by the clamping plate 310 on the copper busbar 100, preventing damage to the copper busbar 100 due to uneven force. Furthermore, the connecting clamp 300 can be directly installed and fixed on the copper busbar 100 without interrupting power supply, eliminating the need to drill holes in the copper busbar 100. This improves power supply reliability, enables rapid assembly, increases work efficiency, and ensures the safety of operators.

[0048] In a further embodiment, the low-voltage switchgear no-drill copper busbar quick-connect socket device also includes a locking clip 400. The locking clip 400 is elastic and is made of a non-metallic insulating material, specifically nylon. The hardness of the locking clip 400 should be greater than that of the connecting clip 300 to prevent deformation of the locking clip 400 under force, thereby reducing the clamping force.

[0049] The locking clamp 400 includes a main clamp body 410 and two pressing plates 420. The structure of the main clamp body 410 is the same as that of the connecting clamp 300. The cross-sectional area of ​​the rectangular cavity 320 of the main clamp body 410 perpendicular to the first direction is larger than the cross-sectional area of ​​the copper busbar 100 perpendicular to the first direction. Each deformation edge 330 of the main clamp body 410 is provided with an adjusting member, and each adjusting member on the deformation edge 330 can make the other clamping plate 310 adjacent to it around the first direction fit tightly against the surface of the copper busbar 100. The two pressing plates 420 are respectively installed at both ends of the main clamp body 410 in the thickness direction of the copper busbar 100, and the two pressing plates 420 can respectively press the two clamping plates 310 of the connecting clamp 300 in the thickness direction of the copper busbar 100.

[0050] The adjusting component includes an adjusting bolt 430, which passes sequentially through the upper and lower bottom edges of the deformation edge 330 corresponding to it. The adjusting bolt 430 is locked to the upper or lower bottom edge of the deformation edge 330 by a nut 440, and the nut 440 is fixedly connected to the upper or lower bottom edge of the deformation edge 330.

[0051] The terminal block 200 is snapped with a housing 220. A space is defined between the housing 220 and the connecting clip 300, allowing the crimping plate 420 to pass through.

[0052] Specifically, the dimension of the rectangular cavity 320 on the main clamping body 410 in the thickness direction of the copper busbar 100 is referred to as the fifth dimension, and the difference between the fifth dimension and the second dimension is 1mm to 2mm. The dimension of the rectangular cavity 320 on the main clamping body 410 in the width direction of the copper busbar 100 is referred to as the sixth dimension, and the difference between the sixth dimension and the fourth dimension is 1mm to 2mm.

[0053] Furthermore, there are two locking clips 400, which are located on both sides of the connecting clip 300 in the first direction.

[0054] In this embodiment, by setting a locking clip 400, during use, after the connecting clip 300 is sleeved on the copper busbar 100 and the installation of the copper busbar 100 and the connecting clip 300 is completed, the locking clip 400 is sleeved on the copper busbar 100, and the pressing plate 420 on it passes through the space defined between the outer shell 220 and the connecting clip 300, which facilitates the subsequent pressing of the pressing plate 420 and the clamping plate 310 on the connecting clip 300.

[0055] Then, using the adjusting bolt 430 to pass through the deformation edge 330, see... Figure 7As shown, for ease of explanation, the four clamping plates 310 of the locking clamp 400 are referred to as the fifth plate 411, the sixth plate 412, the seventh plate 413, and the eighth plate 414, respectively. The deformation edge 330 on the fifth plate 411 is referred to as the fifth edge 415, the deformation edge 330 on the sixth plate 412 is referred to as the sixth edge 416, the deformation edge 330 on the seventh plate 413 is referred to as the seventh edge 417, and the deformation edge 330 on the eighth plate 414 is referred to as the eighth edge 418.

[0056] When the adjusting bolt 430 on the fifth edge 415 is rotated, the adjusting bolt 430 will cause the upper and lower bottom edges of the fifth edge 415 to move closer together. This, in turn, applies a force to the sixth plate 412 near the copper busbar 100 via the waist edge of the fifth edge 415, allowing the sixth plate 412 to press firmly against the surface of its corresponding copper busbar 100. Similarly, when the adjusting bolt 430 on the sixth edge 416 is rotated, the adjusting bolt 430 will cause the upper and lower bottom edges of the sixth edge 416 to move closer together. This, in turn, applies a force to the seventh plate 413 near the copper busbar 100 via the waist edge of the sixth edge 416, allowing the seventh plate 413 to press firmly against the surface of its corresponding copper busbar 100. When the adjusting bolt 430 on the seventh edge 417 is rotated, the adjusting bolt 430 will cause the upper and lower bottom edges of the seventh edge 417 to move closer together. This, in turn, applies a force to the eighth plate 414 near the copper busbar 100 via the waist edge of the seventh edge 417, allowing the eighth plate 414 to press firmly against the surface of its corresponding copper busbar 100. When the adjusting bolt 430 on the eighth edge 418 is rotated, the adjusting bolt 430 will cause the upper and lower bottom edges of the eighth edge 418 to move closer together. This, in turn, applies a force to the fifth plate 411 near the copper busbar 100 via the waist edge of the eighth edge 418, allowing the fifth plate 411 to press firmly against the surface of its corresponding copper busbar 100.

[0057] Furthermore, the crimping plates 420 on the sixth plate 412 and the eighth plate 414 will simultaneously crimp the clamping plate 310 on the connecting clamp 300. Through the cooperation of the locking clamp 400 and the connecting clamp 300, the locking clamp 400 ensures the clamping force with the copper busbar 100, and this clamping force is transmitted to the connecting clamp 300 through the crimping plate 420, making the connection more reliable. That is, the locking clamp 400 provides the main clamping force, while the connecting clamp 300 only provides pre-tightening force to prevent the connecting clamp 300 from loosening due to creep deformation, resulting in a loose connection. Moreover, when the deformation edge 330 on the locking clamp 400 deforms and loosens due to prolonged use, the clamping force of the locking clamp 400 on the copper busbar 100 can be increased by further rotating the adjusting bolt 430, ensuring the strength of the connection.

[0058] In a further embodiment, the arrangement of the clamping plate 310 on the connecting clamp 300 and the deformation connected to the clamping plate 310 along the first direction along the 330 is opposite to the arrangement of the clamping plate 310 on the main clamping body 410 and the deformation connected to the clamping plate 310 along the first direction along the 330.

[0059] That is, see Figure 6 As shown in the figure, the clamping plate 310 on the connecting clamp 300 and the deformation connected to the clamping plate 310 are arranged counterclockwise along 330 around the first direction. See also Figure 7 As shown in the figure, the clamping plate 310 on the main clamping body 410 and the deformation connected to the clamping plate 310 are arranged clockwise along the first direction 330.

[0060] For ease of explanation, the four surfaces of the copper busbar 100 along the first direction are referred to as the first surface 101, the second surface 102, the third surface 103, and the fourth surface 104. When the connecting clip 300 and the locking clip 400 are both fitted onto the copper busbar 100, the second edge 332 and the fifth edge 415 simultaneously apply forces to both ends of the first surface 101. The sixth edge 416 and the third edge 333 simultaneously apply forces to both ends of the second surface 102, the fourth edge 334 and the seventh edge 417 simultaneously apply forces to both ends of the third surface 103, and the first edge 331 and the eighth edge 418 simultaneously apply forces to both ends of the fourth surface 104. This ensures that the pressure acting on the four surfaces of the copper busbar 100 is more evenly distributed, preventing pressure concentration on the copper busbar 100 and thus protecting it from damage.

[0061] Based on the above embodiments, the specific working process is as follows:

[0062] When connecting the terminal 200 to the copper busbar 100, first lock the terminal 200 and the connecting clamp 300 together with the locking bolt, then open the position where the deformation axis 330 is engaged with the clamp 310, and rotate the deformation axis 330 around the first direction to the side away from the clamp 310 with which it is engaged.

[0063] See Figure 6As shown, when the snap-fit ​​position between the first edge 331 and the fourth plate 314 is opened, causing the first edge 331 to rotate clockwise around the first direction away from the fourth plate 314, the first edge 331 will drive the first plate 311 to rotate clockwise. The first plate 311 will drive the second plate 312 to rotate clockwise through the second edge 332. The second plate 312 will drive the third plate 313 to rotate clockwise through the third edge 333. The third plate 313 will drive the fourth plate 314 to rotate clockwise through the fourth edge 334. This causes the connecting clamp 300 to deform as a whole until the opening between the first edge 331 and the fourth plate 314 can fit the copper busbar 100. After the copper busbar 100 enters the rectangular cavity 320, the first edge 331 and the fourth plate 314 snap-fit ​​together again.

[0064] Since the cross-sectional area of ​​the rectangular cavity 320 perpendicular to the first direction is smaller than that of the copper busbar 100 perpendicular to the first direction in its natural state, when the connecting clamp 300 is fitted onto the copper busbar 100, the four sides of the copper busbar 100 will respectively press against the four clamping plates 310, thereby causing each clamping plate 310 to press against the deformation edge 330 on the other clamping plate 310 adjacent to it around the first direction. That is, the first plate 311 presses against the second edge 332, the second plate 312 presses against the third edge 333, the third plate 313 presses against the fourth edge 334, and the fourth plate 314 presses against the first edge 331, causing the four deformation edges 330 to deform. The deformation of the deformation edges 330 will exert a reverse force on the clamping plates 310, thereby enabling all four clamping plates 310 to be in close contact with the surface of the copper busbar 100.

[0065] After fitting the connecting clip 300 onto the copper busbar 100 and completing the installation of the copper busbar 100 and the connecting clip 300, fit the locking clip 400 onto the copper busbar 100, and make its pressing plate 420 pass through the space defined between the housing 220 and the connecting clip 300, so as to facilitate the subsequent pressing of the pressing plate 420 and the clamping plate 310 on the connecting clip 300.

[0066] Then, by using the adjusting bolt 430 to pass through the deformation edge 330, when the adjusting bolt 430 on the fifth edge 415 is rotated, the adjusting bolt 430 will cause the upper and lower bottom edges of the fifth edge 415 to move closer together, thereby applying a force to the sixth plate 412 near the copper busbar 100 through the waist edge of the fifth edge 415, so that the sixth plate 412 can be pressed tightly against the surface of its corresponding copper busbar 100. Similarly, when the adjusting bolt 430 on the sixth edge 416 is rotated, the adjusting bolt 430 will cause the upper and lower bottom edges of the sixth edge 416 to move closer together, thereby applying a force to the seventh plate 413 near the copper busbar 100 through the waist edge of the sixth edge 416, so that the seventh plate 413 can be pressed tightly against the surface of its corresponding copper busbar 100. When the adjusting bolt 430 on the seventh edge 417 is rotated, the adjusting bolt 430 will cause the upper and lower bottom edges of the seventh edge 417 to move closer together. This, in turn, applies a force to the eighth plate 414 near the copper busbar 100 via the waist edge of the seventh edge 417, allowing the eighth plate 414 to press firmly against the surface of its corresponding copper busbar 100. When the adjusting bolt 430 on the eighth edge 418 is rotated, the adjusting bolt 430 will cause the upper and lower bottom edges of the eighth edge 418 to move closer together. This, in turn, applies a force to the fifth plate 411 near the copper busbar 100 via the waist edge of the eighth edge 418, allowing the fifth plate 411 to press firmly against the surface of its corresponding copper busbar 100.

[0067] Furthermore, the crimping plates 420 on the sixth plate 412 and the eighth plate 414 will simultaneously crimp the clamping plate 310 on the connecting clamp 300. The locking clamp 400 achieves adjustable clamping of the copper busbar 100 and provides the main crimping force. Together with the crimping plate 420, it transmits the pressure to the connecting clamp 300. At the same time, the adjusting bolt 430 can compensate for deformation and loosening. This ensures a reliable connection between the copper busbar 100 and the connecting clamp 300, and prevents the connecting clamp 300 from loosening due to creep, thereby improving the overall connection stability and service life.

[0068] Example 2:

[0069] See Figures 9 to 12As shown. A quick-connect socket device for low-voltage switchgear without drilling copper busbars includes a connecting plate 500 and a quick-connect clip 600. The connecting plate 500 can abut against the copper busbar 100. The quick-connect clip 600 has a C-shaped structure and a clamping opening 610. A slotted groove 611 is formed on the quick-connect clip 600, extending along the width of the copper busbar 100. A connecting bolt 612 is inserted into the slotted groove 611, extending along the thickness of the copper busbar 100 and screwed onto the connecting plate 500, thereby allowing the quick-connect clip 600 to move relative to the connecting plate 500 along the width of the copper busbar 100. The quick-connect clip 600 also has an abutment groove, into which an abutment bolt 613 is screwed. In the initial state, the abutment bolt 613 does not abut against the connecting plate 500. The dimension of the clamping opening 610 in the thickness direction of the copper busbar 100 is greater than the sum of the dimension of the copper busbar 100 in the thickness direction and the dimension of the connecting plate 500 in the thickness direction of the copper busbar 100.

[0070] This embodiment uses a connecting plate 500 and a quick-connect clip 600 in conjunction. For usage, please refer to... Figure 11 As shown, the connecting plate 500 and the quick-connect clamp 600 are first locked together by the connecting bolt 612, and at this time, the abutting bolt 613 does not abut against the connecting plate 500. Since the dimension of the clamping opening 610 in the thickness direction of the copper busbar 100 is greater than the sum of the dimensions of the copper busbar 100 in its thickness direction and the dimension of the connecting plate 500 in the thickness direction of the copper busbar 100, the quick-connect clamp 600 can be pushed relative to the connecting plate 500 in the width direction of the copper busbar 100, so that the copper busbar 100 and the connecting plate 500 can be confined within the clamping opening 610.

[0071] The operator can then use a wrench to rotate the abutment bolt 613, which in turn moves the quick-connect clamp 600 along the thickness direction of the copper busbar 100 until the abutment bolt 613 and the quick-connect clamp 600 engage to clamp the connecting plate 500 and the copper busbar 100. This embodiment also allows the connecting plate 500 and the quick-connect clamp 600 to be directly installed and fixed onto the copper busbar 100 without power interruption, eliminating the need for drilling holes in the copper busbar 100. This improves power supply reliability, enables rapid assembly, increases work efficiency, and ensures operator safety.

[0072] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A quick-connect socket device for low-voltage switchgear without drilling, used to connect copper busbars and terminals, characterized in that: The system includes a connecting clip, which is elastic, and a terminal block that locks into the clip. The length direction of the copper busbar is referred to as the first direction, and the cross-section of the copper busbar perpendicular to the first direction is rectangular. The connecting clip can be fitted onto the copper busbar along the first direction. The connecting clip includes four clamping plates, which are connected end-to-end around the first direction to form a rectangular cavity. The cross-sectional area of ​​the rectangular cavity perpendicular to the first direction is smaller than the cross-sectional area of ​​the copper busbar perpendicular to the first direction. Each clamping plate has a deformation edge at one end along the first direction. The deformation edge is located between every two adjacent clamping plates along the first direction, and the cross-section of the deformation edge perpendicular to the first direction is trapezoidal. Every two adjacent clamping plates along the first direction are connected to the waist edge of the deformation edge, and the deformation edge on one clamping plate engages with the other clamping plate adjacent to it along the first direction. It also includes a locking clip, which is elastic and includes a main clamp body and two pressing plates. The structure of the main clamp body is the same as that of the connecting clamp. The cross-sectional area of ​​the rectangular cavity of the main clamp body perpendicular to the first direction is larger than the cross-sectional area of ​​the copper busbar perpendicular to the first direction. Each deformation edge of the main clamp body is provided with an adjusting element, and each adjusting element on the deformation edge can make another clamp plate adjacent to it around the first direction fit tightly against the surface of the copper busbar. The two pressing plates are respectively installed at both ends of the main clamp body in the thickness direction of the copper busbar, and the two pressing plates can respectively press the two clamp plates of the connecting clamp in the thickness direction of the copper busbar. The adjusting element includes an adjusting bolt, which passes through the upper bottom edge and the lower bottom edge of the deformation edge corresponding to it in sequence, and the adjusting bolt is locked to the upper bottom edge or the lower bottom edge of the deformation edge by a nut.

2. The low-voltage switchgear no-drill copper busbar quick-connect socket device according to claim 1, characterized in that: The wall thickness along the deformation edge is less than the wall thickness of the clamping plate.

3. The low-voltage switchgear no-drill copper busbar quick-connect socket device according to claim 1, characterized in that: The nut is fixed to the upper or lower bottom edge of the deformation edge.

4. The low-voltage switchgear no-drill copper busbar quick-connect socket device according to claim 1, characterized in that: The terminal block is snapped with a housing, and the space between the housing and the connector clip is defined to allow the crimping plate to pass through.

5. The low-voltage switchgear no-drill copper busbar quick-connect socket device according to claim 1, characterized in that: There are two locking clips, which are located on both sides of the connecting clip in the first direction.

6. The low-voltage switchgear no-drill copper busbar quick-connect socket device according to claim 1, characterized in that: The arrangement of the clamping plates on the connecting clamp and the deformation connected to the clamping plates along the first direction is opposite to the arrangement of the clamping plates on the main clamp body along the first direction.

7. The low-voltage switchgear no-drill copper busbar quick-connect socket device according to claim 1, characterized in that: The connecting clip is made of a metal conductor, while the locking clip is made of a non-metallic insulating material.

8. The low-voltage switchgear no-drill copper busbar quick-connect socket device according to claim 1, characterized in that: The terminal block is locked to the connector by a locking element.

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