A position signal device and circuit breaker

Abstract

The application discloses a position signal device, comprising: a switch base and a micro switch, the switch base is provided with a placing groove, and the micro switch is arranged in the placing groove; a terminal base and an auxiliary terminal, the auxiliary terminal is electrically connected with the micro switch, and the auxiliary terminal is fixedly arranged on the terminal base; a connecting part is arranged between the switch base and the terminal base, and is in interference clamping cooperation with the switch base and the terminal base, and when the connecting part is in clamping cooperation with the switch base or the terminal base, a gap groove is formed, and the position signal device is clamped and fixed at the designed position through the gap groove. The switch base and the terminal base are connected through the connecting part, the switch base and the terminal base can be customized or standardized in production under the condition of keeping the connecting structure, and the gap groove can make the position signal device be conveniently fixed at the designed position in the circuit breaker, and the installation and dismounting are convenient and fast. The application further provides a circuit breaker comprising the position signal device.

Description

Technical Field

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

[0002] Position signal devices are commonly used indicating components in circuit breakers. They are installed in drawer-type circuit breakers to indicate the position of the isolating contacts, allowing for direct monitoring of the circuit breaker's operating status. However, since position signal devices are components added later in the circuit breaker design, their level of precision is low and their modularity is poor. The irregular placement of microswitches and auxiliary terminals on the position signal device can easily lead to deviations in the position signal output. In addition, position signal devices typically use screws and other connection methods, resulting in a large number of parts with complex structures, making installation and disassembly difficult. This not only increases the manufacturing and assembly costs of the position signal device but also increases the workload of after-sales service.

[0003] Therefore, how to improve the modularity of position signaling devices to enhance their versatility and reduce the difficulty of their manufacturing, installation, and after-sales service is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a position signal device to improve the modularity and versatility of the position signal device, and reduce the difficulty of its manufacturing, installation and after-sales service.

[0005] Another object of the present invention is to provide a circuit breaker that includes the above-described position signal device.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A position signal device, comprising:

[0008] A switch base and a micro switch, wherein the switch base has a placement slot and the micro switch is disposed in the placement slot;

[0009] A terminal block and an auxiliary terminal, wherein the auxiliary terminal is electrically connected to the micro switch and is fixedly mounted on the terminal block;

[0010] The connecting part is disposed between the switch base and the terminal base, and is interference-fitted with both the switch base and the terminal base. When the connecting part is interference-fitted with the switch base or the terminal base, a gap groove is formed. The position signal device is fixed in its designed position by being clamped through the gap groove.

[0011] Preferably, in the above-described position signal device, the connecting part includes a retaining plate, the retaining plate comprising:

[0012] The switch base is provided with a U-shaped groove and a positioning hole. The U-shaped groove is used for the limiting post to slide in and be locked. When the limiting post slides to the bottom of the U-shaped groove, the positioning protrusion is locked into the positioning hole.

[0013] The latch includes at least two locking parts spaced apart, and one side of the terminal block is provided with the same number of slots as the locking parts, with each locking part and each slot being press-fitted together.

[0014] Preferably, in the above-mentioned position signal device, a disc is fixedly provided at one end of the limiting post away from its mounting surface on the switch base. The diameter of the disc is larger than the diameter of the limiting post, and the disc and the mounting surface are located on opposite sides of the U-shaped groove.

[0015] Preferably, in the above-mentioned position signal device, the placement slot is provided with a wire groove for the micro switch to output and run.

[0016] Preferably, in the above-mentioned position signal device, the switch base is provided with three placement slots, and the three microswitches are respectively and spaced apart in the three placement slots. The three microswitches are used to indicate three locking positions of the circuit breaker: disconnection, test, and connection.

[0017] Preferably, in the above-mentioned position signal device, the switch base is further provided with a material reduction hole.

[0018] Preferably, in the above-described position signal device, the terminal block has a housing structure for setting the auxiliary terminal, and the side of the terminal block facing the switch base is a grid structure with grooves.

[0019] Preferably, in the above-mentioned position signal device, the terminal blocks are provided with snap-fit ​​first protrusions and first slots on opposite sides, and a plurality of the terminal blocks are sequentially connected through the snap-fit ​​first protrusions and first slots.

[0020] Preferably, in the above-mentioned position signal device, the terminal block has a plurality of threaded holes on one side for threaded fixing of the auxiliary terminal.

[0021] A circuit breaker includes a drawer base and a position signal device, wherein the position signal device is the position signal device provided in any of the above embodiments, and the drawer base has a mounting hole on at least one side plate for the position signal device to be engaged and fixed by the gap groove.

[0022] As can be seen from the above technical solution, the position signal device provided by the present invention includes a switch base, a micro switch, a terminal base, an auxiliary terminal, and a connecting part. The switch base has a placement groove, and the micro switch is disposed within the placement groove, specifically embedded within it. Similarly, a limiting component can be provided within the placement groove to limit the micro switch's position. The embedded micro switch can maintain a relatively stable posture to ensure stability when the circuit breaker triggers the switch. The terminal base is a box or plate structure, and the auxiliary terminal is fixedly disposed on the terminal base. The auxiliary terminal is electrically connected to the micro switch to transmit multiple sets of micro switch signals; specifically, this electrical connection refers to wire connection. The connecting part is disposed between the switch base and the terminal base, and the connection part and both the switch base and the terminal base are in an interference fit. Preferably, the connecting part is made of a thermoplastic material with good toughness to ensure the stability of its interference fit with the switch base and the terminal base. On the one hand, the connection part is disposed between the switch base and the terminal base... The connecting part in the middle of the sub-base allows the switch base and terminal base to be disassembled and assembled separately. Under the premise of ensuring the stability of the connection structure between the connecting part and the switch base and terminal base, the switch base and terminal base can be designed according to actual needs. That is, the two ends of the connecting part can be fixed with customized or standardized switch bases and terminal bases. At the same time, the connecting part and the switch base and terminal base are all interference fits, without the need for additional fasteners such as bolts and screws, so the disassembly and assembly process is more convenient. On the other hand, when the connecting part and the switch base or terminal base are clamped together, a gap groove is formed, that is, there is a gap between the connecting part and the body of the switch base or terminal base. The position signal device provided by the present invention can be fixed to any plate or plate structure in the circuit breaker by means of this gap groove, and the clamping effect of the connecting part and the switch base or terminal base keeps the fixing effect stable, making the position design of the position signal device provided by the present invention more flexible.

[0023] The position signal device provided by this invention, through a connecting part disposed between the switch base and the terminal base, allows for an interference-fitting engagement with both the switch base and the terminal base, reducing the fastening accessories required during the assembly process of the position signal device and improving the ease of installation and disassembly. Simultaneously, switch bases and terminal bases of any module can be installed on both sides of the connecting part, enabling standardized or customized module production of the switch base and terminal base, thus improving its versatility. Furthermore, a gap groove is formed when the connecting part engages with the switch base or terminal base, allowing the position signal device to be snapped into any plate-like or plate-like structural position within the circuit breaker, making the position design of the position signal device more flexible. Attached Figure Description

[0024] 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.

[0025] Figure 1 This is a schematic diagram of the position signal device structure provided in an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the placement slot structure provided in an embodiment of the present invention;

[0027] Figure 3 for Figure 2 A bottom view;

[0028] Figure 4 This is a schematic diagram of the card plate structure provided in an embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the terminal block structure provided in an embodiment of the present invention;

[0030] Figure 6 for Figure 5 A bottom view;

[0031] Figure 7 A schematic diagram of the drawer base structure provided in an embodiment of the present invention;

[0032] Figure 8 This is a schematic diagram of a circuit breaker structure provided in an embodiment of the present invention;

[0033] Among them, 10 is a switch base, 110 is a placement groove, 1110 is a wire groove, 120 is a limiting post, 130 is a positioning protrusion, 140 is a disc, 150 is a material reduction hole, 20 is a terminal base, 210 is a card slot, 220 is a first protrusion, 230 is a first slot, 240 is a threaded hole, 250 is a grid structure, 30 is a card plate, 310 is a U-shaped groove, 320 is a positioning hole, 330 is a latch, and 3310 is a locking part;

[0034] 40 is the drawer base, and 410 is the mounting hole. Detailed Implementation

[0035] The purpose of this invention is to disclose a position signal device to improve the modularity and versatility of the position signal device, and to reduce the difficulty of its manufacturing, installation and after-sales service.

[0036] Another object of the present invention is to provide a circuit breaker that includes the above-described position signal device.

[0037] To enable those skilled in the art to better understand the present invention, embodiments of the present invention will be described below with reference to the accompanying drawings. Furthermore, the embodiments shown below do not limit the scope of the invention as described in the claims. Additionally, the complete content of the configurations represented in the following embodiments is not limited to those necessary for the solution of the invention described in the claims.

[0038] like Figure 1 As shown, the position signal device provided in this embodiment of the invention includes a switch base 10, a micro switch, a terminal block 20, an auxiliary terminal, and a connecting part. The switch base 10 has a placement groove 110, and the micro switch is disposed in the placement groove 110, specifically embedded in the placement groove 110. Similarly, a limiting component can be provided in the placement groove 110 to limit the micro switch. The embedded micro switch can maintain a relatively stable posture to ensure the stability when the circuit breaker triggers the switch.

[0039] Terminal block 20 is a box or plate structure. Auxiliary terminals are fixedly mounted on terminal block 20 and are electrically connected to microswitches to transmit multiple sets of microswitch signals. This electrical connection specifically refers to wire connection. A connecting part is located between switch block 10 and terminal block 20, and the connecting part and both switch block 10 and terminal block 20 are interference-fitted. Preferably, the connecting part is made of a resilient thermoplastic material to ensure the stability of the interference fit with switch block 10 and terminal block 20. On the one hand, the connecting part located in the middle of switch block 10 and terminal block 20 allows for individual assembly and disassembly of switch block 10 and terminal block 20. While ensuring the stability of the connection structure between the connecting part and switch block 10 and terminal block 20, switch block 10 and terminal block 20 can be designed according to actual needs. That is, both ends of the connecting part can be fitted with customized or standardized switch block 10 and terminal block 20, while the connecting part and switch block 10 and terminal block 20 are interference-fitted. The connection does not require additional fasteners such as bolts and screws, making the assembly and disassembly process more convenient. On the other hand, when the connecting part and the switch base 10 or terminal base 20 are engaged, a gap groove is formed, that is, there is a gap between the connecting part and the body of the switch base 10 or terminal base 20. The position signal device provided in this embodiment of the invention can be fixed to any sheet or plate structure in the circuit breaker by means of this gap groove, and the fixing effect is kept stable by the clamping action of the connecting part and the switch base 10 or terminal base 20. That is, the position signal device provided in this embodiment of the invention can be installed at any required position in the circuit breaker, that is, the setting position, by fixing only a sheet or plate structure, so that the position signal device can be set, making the position design of the position signal device provided in this embodiment of the invention more flexible.

[0040] The position signal device provided in this embodiment of the invention, through a connecting part disposed between the switch base 10 and the terminal base 20, allows for an interference-fitting engagement with the switch base 10 and the terminal base 20, reducing the fastening accessories required during the assembly process of the position signal device and improving its ease of installation and disassembly. Simultaneously, any module of the switch base 10 and terminal base 20 can be installed on both sides of the connecting part, enabling standardized or customized module production of the switch base 10 and terminal base 20, thus improving its versatility. Furthermore, when the connecting part engages with the switch base 10 or terminal base 20, a gap groove is formed, allowing the position signal device to be snapped into any sheet-like or plate-like structural position within the circuit breaker, making the position design of the position signal device more flexible.

[0041] It should be noted that in some circuit breakers, only one set of signal indication is required, and indication can be completed by micro switch without the need to set auxiliary terminals. In this case, in order to reduce the volume occupied by the position signal device provided in the embodiment of the present invention in the circuit breaker, the terminal block 20 can be eliminated. When the terminal block 20 is eliminated, the gap groove is only formed when the connecting part and the switch block 10 are engaged.

[0042] Furthermore, such as Figure 2 , Figure 3 and Figure 4 As shown, in a specific embodiment of the present invention, the connecting part includes a retaining plate 30, on which a U-shaped groove 310, a positioning hole 320, and a latch 330 are provided. The U-shaped groove 310 and the positioning hole 320 are used to fix the switch base 10. Correspondingly, a limiting post 120 and a positioning protrusion 130 are provided on the switch base 10. The U-shaped groove 310 cooperates with the limiting post 120, specifically, the limiting post 120 can slide into the opening end of the U-shaped groove 310 and slide towards the bottom position of the U-shaped structure. The positioning hole 320 is used to cooperate with the positioning protrusion 130. When the limiting post 120 slides along the U-shaped groove 310 to the bottom position of the U-shaped structure, the positioning hole 320 coincides with the central axis of the positioning protrusion 130, and the positioning protrusion 130 is engaged in the positioning hole 320 to realize the installation and limiting of the switch base 10. Figure 4 and Figure 5 As shown, one side of the latch 330 includes at least two locking parts 3310 spaced apart. Correspondingly, one side of the terminal block 20 is provided with the same number of slots 210 as the locking parts 3310. Each locking part 3310 is press-fitted with a single slot 210 to achieve a tight connection of the terminal block 20.

[0043] It should be noted that at least two spaced locking parts 3310 improve the uniformity of force on the terminal block 20 and enhance the stability of the terminal block 20.

[0044] It should be further noted that in the above structure, the connection structure between the connecting part and the switch base 10 and the terminal base 20 can be interchanged, and detachable connection methods such as snap-fit ​​connection and Velcro fastening commonly used in the prior art can also be used.

[0045] To further optimize the above technical solution, the position signal device provided in this embodiment of the invention also includes a disk 140 fixedly mounted on the limiting post 120. One end of the limiting post 120 is fixedly mounted on the switch base 10, and the other end is fixed to the disk 140. The diameter of the disk 140 is larger than the diameter of the limiting post 120. Since the limiting post 120 slides into and engages with the U-shaped groove 310, the diameter of the disk 140 is also larger than the width of the U-shaped groove 310. Furthermore, the disk 140 is fixed to the switch base 10 at the connecting part. At a set time, the two ends of the limiting post 120 are respectively located on both sides of the U-shaped groove 310. The disc 140 is set to keep the limiting post 120 stable as it slides along the U-shaped groove 310, preventing the limiting post 120 from falling out of the U-shaped groove 310. At the same time, when the limiting post 120 slides to the bottom of the U-shape of the U-shaped groove 310 and is locked, the disc 140 can stick to the side wall of the clamping plate 30 to limit the switch base 10, preventing the switch base 10 from sliding out of the U-shaped groove 310 due to the loosening of the limiting post 120.

[0046] Furthermore, considering the wiring requirements of the micro switch, in a specific embodiment of the present invention, a wire groove 1110 is provided on the placement groove 110 for the lead-out wire of the micro switch and for the wire to be embedded therein. The wire groove 1110 is usually located at the bottom of the placement groove 110, that is, the bottom of the placement groove 110 faces away from the micro switch. When the micro switch is placed in the placement groove 110, the wire that is squeezed to the bottom of the placement groove 110 is led out of the placement groove 110 through the open wire groove 1110 and embedded in the switch base 10 along the wire groove 1110. The above structure can not only improve the precision of the position signal device, but also improve the operational safety of the embedded wire and avoid the collision and scratch damage that the exposed wire may be affected by.

[0047] Furthermore, in a specific embodiment of the present invention, the switch base 10 is provided with three placement slots 110, and three microswitches are respectively arranged in the three placement slots 110 at intervals. The distance between the three placement slots 110, that is, the distance between the three microswitches, is set according to the indication function requirements of the circuit breaker. Preferably, its design spacing meets the three locking positions of disconnection, testing and connection that are often required in the use of the circuit breaker body.

[0048] In order to reduce material consumption and lighten the weight of the position signal device to reduce its load-bearing difficulty, in a specific embodiment of the present invention, a material reduction hole 150 is also provided on the switch base 10.

[0049] It should be noted that the feed hole 150 can be set at any position on the position signal device where there is no functional requirement.

[0050] Furthermore, in a specific embodiment of the present invention, the terminal base 20 has a housing structure for setting auxiliary terminals. The auxiliary terminals are sequentially arranged inside the housing. It should be noted that the terminal base 20 is a component for placing and supporting the auxiliary terminals. It can be of any configuration, such as a plate or a housing. It is only necessary to fix the auxiliary terminals on the terminal base 20. In this embodiment, the terminal base 20 with a housing structure is preferred to facilitate the placement and wrapping of the auxiliary terminals, thereby achieving the support and protection of the auxiliary terminals. At the same time, since the auxiliary terminals all need to be wired to the micro switch, in this embodiment, the side of the terminal base 20 facing the switch base 10 is a grid structure 250 with grooves. The grooves on the grid structure 250 can ensure that auxiliary terminals and micro switches with different wiring methods have wiring positions.

[0051] Considering that different application scenarios have different requirements for the number of auxiliary terminals, and that designing the terminal block 20 to be too large would result in wasted space, in a specific embodiment of the present invention, the size of the terminal block 20 is similar to that of the switch block 10. At the same time, a first protrusion 220 and a first slot 230 are respectively provided on the opposite side walls of the terminal block 20. The first protrusion 220 and the first slot 230 are components that can be snapped together. When the auxiliary terminals need to be expanded, the above structure only needs to take out several new terminal blocks 20 and connect the several new terminal blocks 20 sequentially through the snap-fit ​​of the first protrusion 220 and the first slot 230 to realize the expansion installation of the terminal block 20.

[0052] Furthermore, the auxiliary terminals can be mounted on the terminal block 20 by adhesive bonding, cable ties, or screw connections, such as... Figure 6 As shown, in a specific embodiment of the present invention, a plurality of threaded holes 240 are provided on one side of the terminal block 20 for supporting the auxiliary terminal. After the auxiliary terminal is set on the terminal block 20, it is stably connected on the terminal block 20 by passing screws through the threaded holes 240.

[0053] like Figure 7 and Figure 8 As shown, this embodiment of the invention also provides a circuit breaker, which includes a drawer base 40 and a position signal device. In particular, the position signal device has one or more of the technical effects of the position signal device provided in any of the above embodiments. At the same time, a mounting hole 410 is provided on at least one side plate of the drawer base 40, which is engaged with the gap groove. The position signal device passes through the mounting hole 410 and engages the gap groove with the side plate with the mounting hole 410 to achieve stable setting of the position signal device.

[0054] It should be noted that multiple mounting holes 410 can be made on the drawer base 40 to provide multiple mounting positions for the position signal device.

[0055] It needs to be further explained that, such as Figure 7 As shown, when assembling the position signal device, the circuit breaker provided in this embodiment of the invention preferably passes a portion of the switch base 10 through the mounting hole 410 and clamps the connecting part to fix the switch base 10, and then clamps and fixes the terminal block 20 from the other side of the mounting hole 410.

[0056] The terms "first," "second," "left side," and "right side," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units may include steps or units not listed, but rather steps or units not listed.

[0057] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A position signaling device, characterized in that include: A switch base (10) and a micro switch are provided. The switch base (10) has a placement slot (110) and the micro switch is disposed in the placement slot (110). Terminal block (20) and auxiliary terminal, wherein the auxiliary terminal is electrically connected to the micro switch and the auxiliary terminal is fixedly disposed on the terminal block (20); The connecting part is disposed between the switch base (10) and the terminal base (20), and is interference-fitted with both the switch base (10) and the terminal base (20). When the connecting part is clamped with the switch base (10) or the terminal base (20), a gap groove is formed. The position signal device is clamped and fixed in its designed position through the gap groove. The connecting part includes a retaining plate (30), the retaining plate (30) comprising: The switch base (10) is provided with a U-shaped groove (310) and a positioning hole (320). The U-shaped groove (310) is used for the limit post (120) to slide in and be locked. When the limit post (120) slides to the bottom of the U-shaped groove (310), the positioning protrusion (130) is locked into the positioning hole (320). The latch (330) includes at least two locking parts (3310) spaced apart. The terminal block (20) has a number of slots (210) on one side that are the same as the number of locking parts (3310). Each locking part (3310) is press-fitted into a slot (210).

2. The position signal device as described in claim 1, characterized in that, A disc (140) is fixedly provided at one end of the limiting post (120) away from its mounting surface on the switch base (10). The diameter of the disc (140) is larger than the diameter of the limiting post (120), and the disc (140) and the mounting surface are located on opposite sides of the U-shaped groove (310).

3. The position signal device as described in claim 1, characterized in that, The placement slot (110) is provided with a wire slot (1110) for the output and routing of the micro switch wire.

4. The position signal device as described in claim 1, characterized in that, The switch base (10) is provided with three placement slots (110), and three microswitches are respectively arranged in the three placement slots (110) at intervals. The three microswitches are used to indicate the three locking positions of the circuit breaker: disconnection, test and connection.

5. The position signal device as described in claim 1, characterized in that, The switch base (10) is also provided with a material reduction hole (150).

6. The position signal device as described in claim 1, characterized in that, The terminal block (20) has a housing structure for setting the auxiliary terminal, and the side of the terminal block (20) facing the switch base (10) is a grid structure (250) with a groove.

7. The position signal device as described in claim 1, characterized in that, The terminal block (20) is provided with a snap-fit ​​first protrusion (220) and a first slot (230) on opposite sides, and a plurality of terminal blocks (20) are sequentially connected through the snap-fit ​​first protrusion (220) and the first slot (230).

8. The position signal device as described in claim 1, characterized in that, The terminal block (20) has several threaded holes (240) on one side for supporting the auxiliary terminal, which are used to thread the auxiliary terminal.

9. A circuit breaker, comprising a drawer base (40) and a position signal device, characterized in that, The position signal device is the position signal device as described in any one of claims 1-8, and the drawer base (40) has a mounting hole (410) on at least one side plate for the position signal device to be engaged and fixed by the gap groove.

Images