A branch switch base

Abstract

This invention relates to the field of circuit breaker technology and discloses a circuit breaker base, comprising: a base body and connecting components. The front end of the base body is provided with multiple sets of mounting grooves arranged laterally at intervals, each mounting groove including two mounting grooves arranged vertically at intervals. The connecting components are correspondingly disposed in the mounting grooves. Each connecting component includes a conductive block, a conductive pin, and a conductive clamp. The conductive block is fixed in the mounting groove and has a socket hole through which the pins of the circuit breaker can pass. One end of the conductive pin is connected to the conductive block, and the other end of the conductive pin extends out of the rear end of the base body. Two conductive clamps are provided, forming a clamping space between the two conductive clamps for clamping the pins of the circuit breaker. The first end of the conductive clamp is rotatably connected to the conductive block, and the second end of the conductive clamp is connected to the conductive block through an elastic member. The side portion of the conductive clamp covers the socket hole. This invention has high versatility and facilitates the assembly and disassembly of the circuit breaker.

Description

Technical Field

[0001] This invention relates to the field of circuit breaker technology, and in particular to a circuit breaker base. Background Technology

[0002] In the current field of low-voltage switchgear technology for power grids, branch circuit breakers are critical control components. Currently, branch circuit breakers on the market lack a unified, standardized, and modular design. Branch circuit breakers produced by different manufacturers exhibit significant differences in product specifications (different numbers of poles and pin sizes, etc.). A specific brand's base can only be used with a specific model of switch from that brand. This results in a severe lack of versatility and compatibility among existing products. When staff need to replace branch circuit breakers of different brands or upgrade specifications, the original base is often no longer usable. Staff must then customize or replace the entire set of adapter components. This not only incurs costs but also increases the difficulty of inventory management. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a branch switch base that is highly versatile and easy to install and remove.

[0004] To solve the above-mentioned technical problems, the present invention provides a circuit breaker base, comprising: The base has multiple sets of mounting slots arranged at intervals along the horizontal direction at its front end, and the mounting slots include two mounting slots arranged at intervals along the vertical direction. The connecting components are correspondingly disposed in the mounting slots. Each connecting component includes a conductive block, a conductive pin, and a conductive clamp. The conductive block is fixed in the mounting slot and has a socket for the pins of the branch switch to pass through. One end of the conductive pin is connected to the conductive block, and the other end of the conductive pin extends out of the rear end of the base. There are two conductive clamps, and a clamping space for holding the pins of the branch switch is formed between the two conductive clamps. The first end of the conductive clamp is rotatably connected to the conductive block, and the second end of the conductive clamp is connected to the conductive block through an elastic member. The side portion of the conductive clamp covers the socket. When the pin of the shunt switch passes through the socket, the pin interacts with the conductive clamp, causing the conductive clamp to rotate, thus expanding the clamping space to allow the pin to pass through. The elastic member undergoes elastic deformation, and the conductive clamp clamps the pin under the elastic force of the elastic member.

[0005] As a preferred embodiment of the present invention, the two conductive clamps are arranged opposite to each other, and the two conductive clamps gradually move away from each other along the direction from the first end to the second end of the conductive clamps.

[0006] As a preferred embodiment of the present invention, the connecting component further includes an unlocking block, which is slidably connected to the base body. One end of the unlocking block extends out of the base body, and the other end of the unlocking block extends between the second ends of the two conductive clamps. The unlocking block can slide towards the first end of the conductive clamp. When the unlocking block slides towards the first end of the conductive clamp, the unlocking block interacts with the conductive clamp, causing the conductive clamp to rotate, thereby expanding the clamping space.

[0007] As a preferred embodiment of the present invention, the front end of the conductive clamp is provided with a first guide surface for guiding the pins of the shunt switch into the clamping space.

[0008] As a preferred embodiment of the present invention, the mounting groove is fixed with an insulating block that mates with the mounting groove, the insulating block is fixedly connected to the conductive block, and the insulating block is provided with a through hole aligned with the insertion hole.

[0009] As a preferred embodiment of the present invention, the base further includes two insulating blocks. The rear end of each insulating block is provided with a sliding groove. The insulating blocks slide in conjunction with the sliding grooves. There is a gap between the first ends of the two insulating blocks to form a slot. The position of the slot corresponds to the position of the through hole. The second end of each insulating block is connected to the insulating block through an elastic element.

[0010] As a preferred embodiment of the present invention, the front end of the insulating block is provided with a second guide surface that guides the pins of the shunt switch to be inserted into the slot.

[0011] As a preferred embodiment of the present invention, the front end of the insulating block is provided with a third guide surface for guiding the pins of the shunt switch to be inserted into the through hole.

[0012] As a preferred embodiment of the present invention, the base is made of PEEK.

[0013] As a preferred embodiment of the present invention, the conductive clamp is provided with a sensor for detecting the temperature of the conductive clamp.

[0014] This invention discloses a branch switch base, which, compared with existing technologies, offers the following advantages: By incorporating a rotatable conductive clamp with a matching elastic component within the mounting groove of the insulating base, a flexible clamping mechanism capable of adapting to pin sizes is constructed. When different branch switch pins are inserted, the pins directly push the clamp to rotate and expand, achieving automatic locking through elastic restoring force. This not only effectively accommodates manufacturing deviations in pin thickness and inter-pole distance, achieving strong versatility for the base, but also eliminates the cumbersome operation of screw tightening, facilitating the assembly and disassembly of the branch switch. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the present invention; Figure 2 This is a diagram of the fracture structure of the present invention; Figure 3 yes Figure 2 A magnified view of a portion at point A; Figure 4 This is a structural diagram showing the insertion of the branch switch pins into the clamping space of this invention; Figure 5 Structural diagram of the connection component of the present invention; Figure 6 This is a structural diagram of the unlocking block of the present invention extending into the clamping space; Figure 7 Structural diagram of the insulating block of the present invention; In the figure, the base is 1; the mounting groove is 11; the connecting component is 2; the conductive block is 21; the socket is 211; the conductive pin is 22; the conductive clamp is 23; the first guide surface is 231; the elastic member is 24; the unlocking block is 25; the insulating block is 3; the through hole is 31; the third guide surface is 312; the insulating stop is 32; the slot is 321; the second guide surface is 322; the elastic member is 33; the slide is 34; and the sensor is 4. Detailed Implementation

[0016] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0017] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the invention and for simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] like Figure 1-6 As shown, a preferred embodiment of the present invention provides a circuit breaker base, comprising: a base body 1 and a connecting component 2.

[0019] The base 1 is made of insulating material, which effectively isolates current, prevents electric shock from a live base, and ensures operational safety. The front end of the base 1 has multiple sets of horizontally spaced mounting slots. It should be noted that the center-to-center distance between adjacent sets of mounting slots is consistent with the standard pole-to-pole distance of commercially available branch circuit breakers. This allows multiple sets of mounting slots to accommodate branch circuit breakers with different pole numbers. Whether it's a single-pole, double-pole, or three-pole switch, it can be installed by selecting the corresponding number of mounting slots, achieving modular versatility for the base. Each mounting slot includes two vertically spaced mounting slots 11. This vertical arrangement corresponds to the input and output terminals typically found on branch circuit breakers, achieving a physical circuit connection.

[0020] The connecting components 2 are respectively disposed in the mounting slots 11. The connecting components 2 include conductive blocks 21, conductive pins 22 and conductive clamps 23.

[0021] The conductive block 21 is fixed in the mounting groove 11. As a relay station for current transmission, the conductive block 21 is fixed in a way that ensures the stability of the internal structure and prevents loosening. The conductive block 21 has a socket 211 through which the pins of the branch switch can pass. Generally, the socket 211 is located in the center of the mounting groove 11. The diameter of the socket 211 is relatively large. This spacious size design provides sufficient physical space for the pins to be inserted, avoiding insertion difficulties caused by excessively tight fit tolerances. It can also accommodate the thickness deviation and inter-pole distance deviation of the pins of branch switches from different manufacturers. The large diameter can accommodate the pin thickness differences caused by different manufacturing processes, preventing excessively thick pins from getting stuck. At the same time, the margin in the diameter forms a position tolerance zone. Even if there is a slight misalignment between the lateral spacing of the pins of the multi-pole switch and the hole spacing of the base, the pins can still be within the range of the hole without being blocked by the hole wall. That is, it can allow the pins of branch switches from different manufacturers to pass through, thus making it suitable for the installation of different branch switches. This makes the fit between the base and the switch no longer limited to the specific mold size of a single brand, achieving wide compatibility with a variety of product specifications and greatly improving the versatility of the base.

[0022] One end of the conductive pin 22 is connected to the conductive block 21, and the other end of the conductive pin 22 extends out of the rear end of the base 1 for wiring. The conductive pin 22 guides the current inside the base to the external circuit, making it convenient for workers to connect cables or busbars.

[0023] Two conductive clamps 23 are provided, forming a clamping space between them for holding the pins of the branch switch. The two conductive clamps 23 form a double-sided clamping, which increases the conductive contact area and reduces the contact resistance. The conductive clamps 23 contact the conductive block 21 to achieve a conductive connection between them. In addition, the first end of the conductive clamp 23 is rotatably connected to the conductive block 21, and its rotation axis is set longitudinally. The rotatable connection gives the clamp a degree of freedom of movement, so that the opening angle can be automatically adjusted according to the thickness of the pin. The second end of the conductive clamp 23 is connected to the conductive block 21 through an elastic member 24. The elastic member 24 not only plays a reset role, but also assists in current transmission, avoiding local overheating caused by current transmission only through the rotating shaft. The side part of the conductive clamp 23 covers the socket 211. This covered state is the initial state, ensuring that the pin will touch the clamp when inserted, thereby triggering the clamping action.

[0024] When the pin of the branch switch passes through the socket 211, the pin interacts with the conductive clamp 23 (the part that initially blocks the socket 211). The end of the pin presses against the surface of the conductive clamp 23, converting the downward pressure into a thrust that pushes the clamp to move laterally, causing the conductive clamp 23 to rotate. This expands the clamping space to allow the pin to pass through. The conductive clamp 23 rotates around the pivot at the first end, forcibly opening the originally closed or narrow space to accommodate the thickness of the pin. The elastic member 24 undergoes elastic deformation. The elastic member 24 (such as a spring or sheet) is compressed or stretched, storing elastic potential energy. Under the elastic force of the elastic member 24, the conductive clamp 23 clamps the pin. Under the action of the elastic restoring force, the two conductive clamps 23 firmly press against the sides of the pin from both sides, ensuring the reliability of the electrical connection. At the same time, the mechanical friction prevents the switch from accidentally falling off in a vibration environment.

[0025] This embodiment has the following advantages: 1. High versatility and strong compatibility. By incorporating a rotatable conductive clamping block and an elastic component, a flexible clamping mechanism with an automatically adjustable opening size is constructed. This structure can accommodate branch switch pins from different manufacturers. Regardless of variations in pin thickness or slight deviations in the spacing between different poles, the rotating clamping block can adaptively adjust its angle to accommodate these differences, thus breaking the limitation that a specific brand's base can only be used with a specific switch.

[0026] 2. Easy assembly and disassembly, high operational efficiency. The conductive clamp is driven by the thrust of the pins themselves, achieving a convenient "plug-and-play" installation method. When installing the branch switch, operators do not need to use additional tools to tighten screws; simply align the switch pins and insert them, and the internal mechanism will automatically complete the locking action, greatly shortening equipment maintenance and replacement time.

[0027] 3. Tight contact and stable electrical performance. The conductive clamp firmly holds the pin under the continuous elastic force of the elastic component. This flexible floating clamping method ensures that the contact surface is always in contact. Even if the base is subjected to external vibration or long-term operation, the clamping force can be automatically compensated to prevent arcing or overheating caused by loose contact, ensuring safe and reliable current transmission.

[0028] 4. Modular layout reduces costs. The front end of the base 1 has multiple sets of mounting slots arranged at horizontal intervals. This standardized array design can flexibly match different specifications of branch switches, such as single-pole, double-pole, or triple-pole switches. There is no need to prepare multiple models of bases for switches with different numbers of poles on site, which significantly reduces the types and quantities of spare parts, and reduces the complexity of inventory management and procurement costs.

[0029] For example, see Figure 4 , 5 6. Two conductive clamps 23 are positioned opposite each other. Along the direction from the first end to the second end of the conductive clamps 23, the two conductive clamps 23 gradually move away from each other. This structure forms a funnel-like shape between the two clamps. When the pin is inserted deeply, the contact point between the clamp and the pin has a long lever arm, which can generate sufficient clamping torque with a small elastic force, and also facilitates the pin to slide into the deep end.

[0030] For example, see Figure 1 , 2 In addition to component 6, the connecting assembly 2 also includes an unlocking block 25, which is slidably connected to the base 1. This sliding connection restricts the movement trajectory of the unlocking block 25, allowing it to move only in a straight line in a specific direction. One end of the unlocking block 25 extends out of the base 1, serving as an operating button for easy pressing or pulling by the operator using fingers or tools. The other end of the unlocking block 25 extends between the second ends of the two conductive clamping blocks 23, allowing it to slide towards the first end of the conductive clamping blocks 23. This end of the unlocking block 25 acts as a wedge. When the unlocking block 25 slides towards the first end of the conductive clamping blocks 23, it interacts with the conductive clamping blocks 23, causing them to rotate and expanding the clamping space. The unlocking block 25 forcefully squeezes between the two clamping blocks, overcoming the elastic force of the elastic element 33 and forcing the clamping blocks to open to both sides. At this point, the clamping force disappears, allowing the operator to easily and effortlessly pull out the branch switch, avoiding damage to the equipment from violent plugging and unplugging and improving maintenance efficiency.

[0031] For example, see Figure 6The conductive clamp 23 (the part that initially blocks the socket 211) has a first guide surface 231 at its front end for guiding the pins of the shunt switch into the clamping space. The first guide surface 231 is usually a slope or an arc surface. When the pin position is slightly off, the pin tip touches the guide surface and slides along the slope to the center position, automatically correcting the insertion angle and avoiding a hard impact between the pin end face and the clamp end face.

[0032] For example, see Figure 2 and 3 An insulating block 3 is fixed to the mounting groove 11, fitting tightly into the opening of the mounting groove 11, thus sealing and reinforcing the internal structure. This fit eliminates installation gaps, preventing dust or foreign objects from entering the base. The insulating block 3, in conjunction with the mounting groove 11, isolates the conductive block 21, preventing it from being exposed and causing electric shock. The insulating block 3 forms a robust physical barrier, completely enclosing the live parts. Workers cannot directly touch the internal metal components with their fingers, ensuring personal safety during live operations. The insulating block 3 is fixedly connected to the conductive block 21; this rigid connection ensures their relative position is fixed, preventing loosening or misalignment under vibration from frequent insertion and removal. The insulating block 3 has a through hole 31 aligned with the socket 211, with the central axis of the through hole 31 coinciding with the central axis of the socket 211 of the conductive block 21, forming a smooth straight path. This alignment design prevents the pins from being obstructed during insertion. The pins of the circuit breaker can pass through the through hole 31 and the socket 211 in sequence. The through hole 31 first limits and guides the pins, guiding them accurately into the deep conductive area. The pins pass smoothly through these two holes and are finally captured by the internal clamping mechanism, completing the guiding process of physical connection.

[0033] For example, see Figure 2 , 3In addition to component 7, the base also includes two insulating blocks 32, which form a movable protective door for the internal energized area, shielding the internal structure when no switch is inserted. The rear end of the insulating block 3 has a sliding groove 34, with the insulating block 32 slidingly engaging with the groove 34. The groove 34 restricts the movement trajectory of the block, ensuring that it can only move smoothly along a plane perpendicular to the insertion direction of the pin, preventing the block from tilting or jamming under force. A slot 321 is formed between the first ends of the two insulating blocks 32, providing positioning space for the pin tip, allowing the pin to be accurately aligned and not directly hitting the plane of the block, thus preventing insertion. The position of the slot 321 corresponds to the position of the through hole 31, ensuring that the pin entering from the external through hole 31 can directly align with the joint between the two blocks, smoothly triggering the opening action. The second end of the insulating block 32 is connected to the insulating block 3 via an elastic element 33. In its natural state, the pushing force of the elastic element 33 causes the two blocks to close together. When the pin is inserted, it presses against the edge of the slot 321, overcoming the resistance of the elastic element 33 and pushing the stop block to both sides along the slide groove 34, opening the channel for conductive connection. When the pin is pulled out, the elastic element 33 releases its elastic force, driving the stop block to quickly reset and close, thereby automatically cutting off the physical channel with the outside and preventing dust from entering or accidental electric shock.

[0034] For example, see Figure 3 The front end of the insulating block 32 is provided with a second guide surface 322 to guide the pins of the shunt switch into the slot 321. This guide surface reduces the resistance when the pins push open the insulating block 32. The pins can smoothly push open the block and enter the interior, making the operation smoother and preventing jamming.

[0035] For example, see Figure 1 and 3 The front end of the insulating block 3 is provided with a third guide surface 312 for guiding the pins of the shunt switch into the through hole 31. This is the first barrier for the pins to enter the base. It provides a coarse positioning function, and when the operator blindly inserts the pins in a limited field of vision, the guide surface can help guide the pins into the correct position of the socket 211.

[0036] For example, the base 1 is made of PEEK (polyetheretherketone), a material with extremely high heat resistance and mechanical strength. Even when operating under high current, causing a high internal temperature rise, the base will not soften or deform. Excellent insulation and aging resistance ensure long-term stable operation of the base in harsh electrical distribution cabinet environments.

[0037] For example, see Figure 3The conductive clamp 23 is equipped with a sensor 4 for detecting the temperature of the conductive clamp 23. The sensor 4 is in close contact with the key conductive parts and can monitor the heating of the contact point in real time. Once the clamping becomes loose or oxidation causes an increase in contact resistance and an abnormal rise in temperature, the system can receive timely feedback to prevent ablation or fire accidents. Preferably, the sensor 4 is an RFID sensor. RFID technology enables passive wireless temperature measurement, requiring no external power supply or wiring. It transmits temperature data to an external receiving device via wireless radio frequency signals. This non-contact transmission method solves the problem of difficult wiring inside the enclosed base, while also achieving electrical isolation between the high-voltage side and the low-voltage side, ensuring the safety of the detection system.

[0038] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A branch switch base, characterized in that: include: The base has multiple sets of mounting slots arranged at intervals along the horizontal direction at its front end, and the mounting slots include two mounting slots arranged at intervals along the vertical direction. The connecting components are correspondingly disposed in the mounting slots. Each connecting component includes a conductive block, a conductive pin, and a conductive clamp. The conductive block is fixed in the mounting slot and has a socket for the pins of the branch switch to pass through. One end of the conductive pin is connected to the conductive block, and the other end of the conductive pin extends out of the rear end of the base. There are two conductive clamps, and a clamping space for holding the pins of the branch switch is formed between the two conductive clamps. The first end of the conductive clamp is rotatably connected to the conductive block, and the second end of the conductive clamp is connected to the conductive block through an elastic member. The side portion of the conductive clamp covers the socket. When the pin of the shunt switch passes through the socket, the pin interacts with the conductive clamp, causing the conductive clamp to rotate, thus expanding the clamping space to allow the pin to pass through. The elastic member undergoes elastic deformation, and the conductive clamp clamps the pin under the elastic force of the elastic member.

2. The branch switch base according to claim 1, characterized in that: The two conductive clamps are arranged opposite each other, and gradually move away from each other along the direction from the first end to the second end of the conductive clamps.

3. The branch switch base according to claim 2, characterized in that: The connecting assembly further includes an unlocking block, which is slidably connected to the base. One end of the unlocking block extends out of the base, and the other end extends between the second ends of the two conductive clamps. The unlocking block can slide towards the first end of the conductive clamp. When the unlocking block slides towards the first end of the conductive clamp, the unlocking block interacts with the conductive clamp, causing the conductive clamp to rotate, thereby expanding the clamping space.

4. The branch switch base according to claim 1, characterized in that: The front end of the conductive clamp is provided with a first guide surface for guiding the pins of the shunt switch into the clamping space.

5. The branch switch base according to claim 1, characterized in that: An insulating block that mates with the mounting groove is fixedly attached to the mounting groove. The insulating block is fixedly connected to the conductive block. The insulating block has a through hole aligned with the insertion hole.

6. The branch switch base according to claim 5, characterized in that: It also includes two insulating blocks, each with a groove at its rear end. The insulating blocks slide in conjunction with the grooves, and a slot is formed between the first ends of the two insulating blocks by a gap. The position of the slot corresponds to the position of the through hole. The second end of the insulating blocks is connected to the insulating blocks by an elastic element.

7. The branch switch base according to claim 6, characterized in that: The front end of the insulating block is provided with a second guide surface that guides the pins of the shunt switch to insert into the slot.

8. The branch switch base according to claim 5, characterized in that: The front end of the insulating block is provided with a third guide surface for guiding the pins of the shunt switch into the through hole.

9. The branch switch base according to claim 1, characterized in that: The base is made of PEEK.

10. The branch switch base according to claim 1, characterized in that: The conductive clamp is equipped with a sensor for detecting the temperature of the conductive clamp.

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