Adapter and circuit breaker transfer structure

Abstract

A switching device and a switching structure for a circuit breaker are disclosed. The switching device includes a device housing and a circuit switching component. The circuit switching component includes a device connection portion and a device wiring portion for electrical connection with an external conductor. The device connection portion extends at least partially for insertion. The switching device includes a wiring area and a switching area. The direction from the wiring area to the switching area is a first direction, and the insertion direction of the device connection portion is a second direction. The thickness of the wiring area in the second direction is greater than the thickness of the switching area in the second direction, such that a first mounting notch is formed on one side of the switching area. The device connection portion is located in the switching area and extends at least partially from the switching area into the first mounting notch. The device wiring portion is disposed in the wiring area and connected to the device connection portion. The second wiring terminal of the circuit breaker extends into the first mounting notch. The device has a smaller size.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage electrical appliances, specifically to a switching device and a switching structure for a circuit breaker. Background Technology

[0002] As circuit breakers move towards miniaturization and intelligence, the existing 1U circuit breaker effectively reduces the installation height of traditional circuit breakers, and its plug-in structure facilitates quick wiring and convenient and fast assembly.

[0003] Because in the existing technology, the overall thickness of the switching mechanism is limited by the size of the internal fixing screws and the length inserted into the circuit breaker terminals, the overall thickness is relatively thick and the size is relatively large.

[0004] In addition, due to the limited size of the wiring port, it is necessary to use the male and female contact terminals to make an interference fit to achieve conductive contact and then to transfer electrical energy. However, the insertion and removal process will generate obvious friction, which will cause the contact terminals to wear easily and have a short lifespan. There may even be cases where the male and female contact terminals are mismatched in size, resulting in poor contact or inability to insert. Utility Model Content

[0005] The purpose of this utility model is to overcome at least one defect of the prior art and provide a switching structure for a switching device and a circuit breaker.

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

[0007] In a first aspect, this application provides an adapter, including a device housing and a circuit adapter, the circuit adapter including a device connection portion and a device wiring portion for electrical connection with an external conductor, the device connection portion extending at least partially out of the device housing for insertion and engagement.

[0008] The adapter includes a wiring area and an adapter area. The device wiring portion is disposed in the wiring area and connected to the device connection portion. The direction from the wiring area to the adapter area is a first direction, and the insertion direction of the device connection portion is a second direction. It also includes a third direction, which, along with the second and first directions, is perpendicular to each other.

[0009] The thickness of the wiring area in the second direction is greater than the thickness of the transition area in the second direction, such that a first mounting notch is formed on one side of the transition area, and the device connection portion is located in the transition area and the device connection portion extends at least partially from the transition area into the first mounting notch.

[0010] In one possible implementation, the device connection portion and the device wiring portion are bent and connected; the device wiring portion is arranged along a first direction, and the wiring area has a conductor connection portion on the side away from the transition area, and the insertion direction of the device wiring portion is perpendicular to the connection direction of the external conductor and the transition device.

[0011] And / or, the portion of the device connection that extends out of the device housing is located within the first mounting notch or partially extends out of the first mounting notch.

[0012] In one possible implementation, the adapter further includes a locking element located in the wiring area for securing the external conductor and the circuit adapter.

[0013] In one possible implementation, when the locking member is in the first position, the circuit adapter is movable in a first direction, and when the locking member is in the second position, the locking member fixes the circuit adapter to the device housing.

[0014] In one possible implementation, the device wiring portion includes an elongated first through-hole, the length direction of which is arranged along a first direction, and / or, the locking element includes a mounting rod and a fastener that engage for locking, the fastener being fixed within the device housing or the mounting rod being fixed within the device housing.

[0015] In one possible implementation, two circuit adapters are included, namely a first circuit adapter and a second circuit adapter.

[0016] The device connection part of the first circuit adapter is a first device connection part, and the device wiring part of the first circuit adapter is a first device wiring part; the device connection part of the second circuit adapter is a second device connection part, and the device wiring part of the second circuit adapter is a second device wiring part.

[0017] The first device connection portion includes at least one first connection end, and the second device connection portion includes at least one second connection end.

[0018] In one possible implementation, the first device wiring portion and the second device wiring portion are in the same plane; or, the first device wiring portion and the second device wiring portion are arranged parallel to each other in the second direction, and their projected portions in the second direction overlap.

[0019] In one possible implementation, the first device connection portion and the second device connection portion are on the same plane; or, the first device connection portion and the second device connection portion are arranged parallel to each other and spaced apart in a first direction.

[0020] In one possible implementation, the first device connection portion and the second device connection portion are arranged parallel to each other in a first direction. The first device connection portion includes at least two first connection ends, and the second device connection portion includes at least two second connection ends. The at least two first connection ends and the at least two second connection ends are arranged sequentially along a third direction, or the first connection ends and the second connection ends are arranged alternately along a third direction.

[0021] Alternatively, the first device connection portion and the second device connection portion are on the same plane, and at least one first connection end and at least one second connection end are arranged sequentially along a third direction.

[0022] In one possible implementation, the first device connection portion includes two first connection ends spaced apart, the first device wiring portion includes a first through hole, the right side of the first device wiring portion includes a first extension plate, and the first extension plate includes a first arc-shaped limiting edge located to the right of the first through hole.

[0023] The second device connection part includes two second connection ends spaced apart. The second device wiring part includes a first through hole located at the upper part of the second device wiring part. The right side of the second device wiring part includes a first limiting notch and a first clearance notch from top to bottom. A first clearance hole is provided on the left side of the first clearance notch. The left side of the second device wiring part includes a first extension plate. The first extension plate includes a first arc-shaped limiting edge located on the left side of the first through hole.

[0024] In one possible implementation, the first device connection portion includes two first connection ends spaced apart, and the first device wiring portion includes a first through hole and a first arc-shaped limiting edge located to the right of the first through hole;

[0025] The second device connection part includes two second connection ends spaced apart. The second device wiring part includes a first through hole at the top and a first arc-shaped limiting edge on the left side of the first through hole. The right side of the second device wiring part includes a first limiting notch and a first clearance notch from top to bottom. The left side of the second device wiring part includes the first arc-shaped limiting edge and the second clearance notch from top to bottom. The first clearance notch and the second clearance notch are corresponding to each other.

[0026] In one possible implementation, the first device connection portion includes two first connection ends spaced apart, the first device wiring portion includes a first through hole located at the upper part, the left side of the first device wiring portion includes a first extension plate, the left side of the first extension plate includes a first arc-shaped limiting edge and a first clearance notch from top to bottom, the first arc-shaped limiting edge is located to the left of the first through hole, the right side of the first device wiring portion includes a first limiting notch and a second clearance notch from top to bottom, the first clearance notch and the second clearance notch are corresponding to each other, and a first clearance hole is included between the first clearance notch and the second clearance notch;

[0027] The second device connection part includes two second connection ends spaced apart. The second device wiring part includes a first through hole located at the top. The left side of the second device wiring part includes a first limiting notch and a first clearance notch from top to bottom. The right side of the second device wiring part includes a first extension plate. The right side of the first extension plate includes a first arc-shaped limiting edge and a second clearance notch from top to bottom. The first arc-shaped limiting edge is located to the right of the first through hole. The first clearance notch and the second clearance notch are corresponding to each other, and a first clearance hole is included between the first clearance notch and the second clearance notch.

[0028] In one possible implementation, the device housing includes a first housing and a second housing, the first housing and the second housing being mounted along a third direction and fixed along a second direction;

[0029] The first housing includes a first gap, and the first circuit adapter is limited within the first gap; the second housing includes a second gap, and the second circuit adapter is limited within the second gap; the first housing and the second housing respectively include opposing limiting platforms and limiting grooves, and the limiting platforms and limiting grooves clamp limiting fasteners.

[0030] In one possible implementation, a first limiting post is provided within the first gap and / or the second gap, and the circuit adapter includes a first limiting notch that cooperates with the first limiting post for limiting.

[0031] Secondly, this application provides a switching structure for a circuit breaker, including a circuit breaker and the switching device described above. The circuit breaker includes an operating end with a closing and opening operation component and a second terminal. At least a portion of the operating end of the circuit breaker with the second terminal extends into the first mounting notch. The first mounting notch is located on the side of the switching area closer to the circuit breaker.

[0032] In one possible implementation, the first mounting notch includes a first mating surface and a second mating surface that are connected by a right-angle bend; the operating end of the circuit breaker includes a third mating surface located on the upper surface of the circuit breaker and a fourth mating surface located in front of the second terminal, the first mating surface being in contact with the third mating surface, and the second mating surface being in contact with the fourth mating surface.

[0033] Compared to existing technologies, the adapter of this application includes a device housing and a circuit adapter. The circuit adapter includes a device connection portion and a device wiring portion for electrical connection with an external conductor. The device connection portion extends at least partially to insert the second wiring terminal. The adapter includes a wiring area and an adapter area. The direction from the wiring area to the adapter area is a first direction, and the direction in which the device connection portion inserts into the second wiring terminal is a second direction. The first direction is perpendicular to the second direction. The thickness of the wiring area in the second direction is greater than the thickness of the adapter area in the second direction, so that the adapter area forms a first mounting notch on the side near the circuit breaker. The device connection portion is located in the adapter area and at least partially extends out of the adapter area, which is located within the first mounting notch. The second wiring terminal of the circuit breaker extends into the first mounting notch, which can reduce the volume and size of the adapter.

[0034] Furthermore, the adapter of this application includes a locking member. When the locking member is in the first position, the circuit adapter can move up and down along the first direction. When the locking member is in the second position, the locking member fixes the circuit adapter to the device housing, which facilitates the adjustment of the position of the circuit adapter and prevents the circuit breaker and adapter from having poor installation effect or installation mismatch due to structural errors, which would lead to unstable contact of the male and female contact terminals and affect the service life of the adapter. Attached Figure Description

[0035] Figures 1a-1c This is a schematic diagram of the structure of the first embodiment of the adapter of this utility model;

[0036] Figure 2 This is an exploded view of the first embodiment;

[0037] Figure 3 This is a schematic diagram of the structure of the first embodiment without the first shell;

[0038] Figure 4a and Figure 4b This is a schematic diagram of the second shell structure;

[0039] Figure 5a This is a schematic diagram of the structure of the first circuit adapter in the first embodiment;

[0040] Figure 5b This is a schematic diagram of the structure of the second circuit adapter in the first embodiment;

[0041] Figures 6a-6c This is a schematic diagram of the structure of the second embodiment of the adapter of this utility model;

[0042] Figures 7a-7c This is a schematic diagram of the third embodiment of the adapter of this utility model;

[0043] Figure 8a These are schematic diagrams of the structure of the first circuit adapter in the second and third embodiments;

[0044] Figure 8b These are schematic diagrams of the second circuit adapter in the second and third embodiments;

[0045] Figures 9a-9c This is a schematic diagram of the fourth embodiment of the adapter of this utility model;

[0046] Figure 10a This is a schematic diagram of the structure of the first circuit adapter in the fourth embodiment;

[0047] Figure 10b This is a schematic diagram of the structure of the second circuit adapter in the fourth embodiment;

[0048] Figure 11 and Figure 12 This is a schematic diagram of the structure of the adapter of this utility model installed with two types of circuit breakers;

[0049] Figure 13 This is a cross-sectional view of the connection between the adapter and the circuit breaker of this utility model;

[0050] Figure 14 This is a schematic diagram of the first and second housings being installed together.

[0051] The reference numerals in the attached drawings include: 1. Adapter; 2. Circuit breaker; 11. Housing; 12. Circuit adapter; 121. Connecting part; 122. Wiring part; 15. Wiring area; 16. Adapter area; 13. Locking element; 131. Mounting rod; 1221. First through hole; 132. Fastener; 1311. Operating part; 1312. Mounting end; 123. First circuit adapter; 124. Second circuit adapter; 1231. First device connecting part; 1232. First connecting part; 1233. Second device connecting part; 124. 41; Second device wiring section 1242; Second connection end 1243; First extension plate 1234; First arc-shaped limiting edge 1235; First limiting notch 1244; First clearance notch 1245; First clearance hole 1246; First limiting post 1249; Second clearance notch 1250; First housing 111; Second housing 112; Limiting platform 113; Limiting groove 114; Second gap 115; External conductor 14; Second through hole 141; Terminal block 142; Wire lug 143; First mounting notch 116. Detailed Implementation

[0052] The specific embodiments of this utility model are further described below with reference to the accompanying drawings. The scope of protection of this utility model is not limited to the description of the following embodiments.

[0053] The following is in conjunction with the appendix Figures 1a-14 The given embodiments further illustrate the switching structure of the adapter 1 and circuit breaker 2 of this utility model. The switching structure of the adapter 1 and circuit breaker 2 of this utility model is not limited to the description in the following embodiments.

[0054] like Figure 11 , Figure 12 As shown, a circuit breaker switching structure includes a switching device 1 and a circuit breaker 2. In this embodiment, the circuit breaker 2 is a plug-in type. One end of its length is provided with a first terminal, which can serve as an incoming line terminal. It is plugged into a cabinet and electrically connected to the copper busbar inside the cabinet. The other end of its length is an operating terminal, which includes a closing / opening operating component and a second terminal, which can serve as an outgoing line terminal. The second terminal is equipped with terminals for wiring. The closing / opening operating component is a handle or button, connected to an operating mechanism inside the circuit breaker 2. The operating mechanism is connected to a moving contact, allowing for closing / opening operations. The switching device 1 is located at the second terminal of the circuit breaker 2, enabling the switching of the circuit breaker's outgoing line terminal and the conductor. Figure 11 and Figure 12 This is a schematic diagram of the installation structure of the transfer device of this application with two types of circuit breakers. Figure 13 This is a cross-sectional view of the connection between the adapter and the circuit breaker of this utility model.

[0055] like Figures 1a-1cAs shown, the adapter 1 includes a housing 11 and a circuit adapter 12. The circuit adapter 12 includes a device connection portion 121 for electrical connection with the circuit breaker 2 and a device wiring portion 122 for electrical connection with an external conductor 14. The device connection portion 121 extends at least partially to insert the second wiring terminal.

[0056] The adapter 1 includes a wiring area 15 and an adapter area 16. The direction from the wiring area 15 to the adapter area 16 is the first direction, and the direction in which the device connection part 121 is inserted into the second wiring terminal is the second direction. The first direction is perpendicular to the second direction. The first direction is also the height direction of the circuit breaker, and the second direction is also the length direction of the circuit breaker. It also includes a third direction. The third direction, the first direction, and the second direction are perpendicular to each other. The third direction is also the width direction of the circuit breaker.

[0057] The thickness of the wiring area 15 in the second direction is greater than the thickness of the transition area 16 in the second direction, such that the transition area 16 forms a first mounting notch 116 on the side near the circuit breaker 2. The device connection portion 121 is located in the transition area 16 and the device connection portion 121 extends at least partially from the transition area 16 into the first mounting notch 116. The second terminal of the circuit breaker 2 extends into the first mounting notch 116. The device wiring portion 122 is disposed in the wiring area 15 and is connected to the device connection portion 121, which can reduce the volume and size of the transition device.

[0058] like Figure 2 and Figure 3 As shown, the device connection part 121 and the device wiring part 122 are bent and connected. The device wiring part 122 is arranged along the first direction. The wiring area 15 has a conductor connection part on the side away from the transfer area 16. Thus, the external conductor 14 is connected to the conductor connection part along the first direction, so that the connection direction of the circuit breaker 2 and the transfer device 1 is perpendicular to the connection direction of the external conductor 14 and the transfer device. That is, the insertion direction of the device wiring part 122 is perpendicular to the connection direction of the external conductor 14 and the transfer device.

[0059] It should be noted that the portion of the device connection 121 extending out of the device housing 11 is located within the first mounting notch 116, or partially extends out of the first mounting notch 116, that is, the portion of the device connection 121 extending out of the device housing 11 is longer than the first mounting notch 116.

[0060] Furthermore, the first mounting notch 116 includes a first mating surface and a second mating surface that are connected by a right-angle bend; the operating end of the circuit breaker 2 includes a third mating surface located on the upper surface of the circuit breaker 2 and a fourth mating surface located in front of the second terminal, the first mating surface being in contact with the third mating surface, and the second mating surface being in contact with the fourth mating surface.

[0061] Preferably, the adapter 1 further includes a locking member 13 located in the wiring area 15, the locking member 13 being used to fix the external conductor 14 and the circuit adapter 12. In a preferred embodiment of this application, the locking member fixes the external conductor 14 and the circuit adapter 12 along a second direction. The locking member 13 may be a screw, bolt, or other locking structure.

[0062] Furthermore, the circuit adapter 12 can move up and down along the first direction, facilitating position adjustment and preventing poor installation or mismatch between the circuit breaker and adapter due to structural errors. Moreover, by adjusting the position of the circuit adapter 12, it can be adapted to different circuit breakers; when the positions of the second terminals of the circuit breaker are different, the position of the circuit adapter 12 can be adjusted. In one implementation, when the locking member 13 is in the first position, the circuit adapter 12 can move up and down along the first direction; when the locking member 13 is in the second position, the locking member 13 fixes the circuit adapter 12 to the device housing 11.

[0063] Preferred, such as Figure 2 As shown, the bending angles of the device connection portion 121 and the device wiring portion 122 are right angles. The device wiring portion 122 is at least partially located inside the device housing 11, and the device connection portion 121 extends at least partially out of the device housing 11 and is connected to the circuit breaker 2.

[0064] in, Figures 1a-1c This is a schematic diagram of the structure of the first embodiment of the adapter 1 provided in this application; Figures 6a-6c This is a schematic diagram of the structure of the second embodiment of the adapter 1 provided in this application; Figures 7a-7c This is a schematic diagram of the third embodiment of the adapter 1 provided in this application; Figures 9a-9c This is a schematic diagram of the fourth embodiment of the adapter 1 provided in this application.

[0065] Preferably, in one embodiment, the device wiring portion 122 includes a limiting area, and the locking member 13 includes a mounting rod 131. The mounting rod 131 is movably or rotatably mounted on the device housing 11. Driving the mounting rod 131 causes one end of the mounting rod 131 to abut against the limiting area, thereby limiting the movement of the circuit adapter 12.

[0066] Furthermore, the mounting rod 131 is a screw, which is rotatably mounted on the device housing 11. By rotating the screw, one end of the screw is pressed and fixed against the limiting area of ​​the device wiring portion 122. The device housing 11 includes a first mounting hole, in which a thread is provided to mate with the screw. The screw is rotatably mounted within the first mounting hole. Preferably, the device wiring portion 122 has a frosted limiting area, and the end of the screw that mates with the limiting area is a pointed structure. The pointed structure mates with the frosted limiting area to increase friction and improve the fixing effect.

[0067] Preferred, such as Figure 2 and Figure 3 As shown, the wiring portion 122 of the device includes an elongated first through-hole 1221, the length direction of which is set along a first direction. In this embodiment, the first through-hole 1221 is elliptical. The locking member 13 includes a mounting rod 131 and a fastener 132 for locking. The mounting rod 131 passes through the first through-hole 1221 along the length direction of the circuit breaker 2. When the locking member 13 is in the first position, the circuit adapter 12 can move up and down along the height direction of the circuit breaker 2; the adapter 1 and the circuit breaker... When the device 2 is fixed after connection, the circuit adapter 12 is adjusted to a suitable position, which can drive the mounting rod 131 and / or fastener 132 of the locking member 13 to move, so that the distance between the mounting rod 131 and the fastener 132 is shortened, that is, the locking member 13 changes from the first position to the second position; when the locking member 13 is in the second position, the mounting rod 131 and the fastener 132 fix the circuit adapter 12, so that the circuit adapter 12 is fixedly connected to the device housing 11, when the adapter 1 is fixed on the circuit breaker 2.

[0068] Compared to the prior art, the circuit adapter 12 of this application can move up and down along the first direction before being installed with the circuit breaker 2, which facilitates the adjustment of the position of the circuit adapter 12 and prevents the circuit breaker 2 and the adapter 1 from having poor installation effect or installation mismatch due to structural errors, which would lead to unstable contact of the male and female contact terminals and affect the service life of the adapter 1.

[0069] Preferably, the fastener 132 is fixed inside the device housing 11 or the mounting rod 131 is fixed inside the device housing 11. By operating the fastener 132 or the mounting rod 131, the distance between the fastener 132 and the mounting rod 131 can be shortened, thereby achieving the function of squeezing and fixing the circuit adapter 12.

[0070] Preferably, both the fastener 132 and the mounting rod 131 are movable, and the distance between the fastener 132 and the mounting rod 131 can be shortened by operating the fastener 132 and the mounting rod 131 simultaneously.

[0071] Furthermore, such as Figure 3As shown, the fastener 132 is fixed inside the device housing 11, and the mounting rod 131 is movably disposed. The mounting rod 131 has an operating part 1311 and a mounting end 1312 at each end. The mounting end 1312 is fitted with the fastener 132. The operating part 1311 causes the mounting rod 131 to move, with the mounting end 1312 located inside or extending out of the device housing 11. The operating part 1311 is also located inside or extending out of the device housing 11.

[0072] Specifically, such as Figures 1a-1c , Figures 6a-6c and Figures 9a-9c As shown, when the locking member 13 is in the first position, the mounting end 1312 is at least partially located inside the device housing 11; when the locking member 13 is in the second position, the mounting end 1312 extends at least partially out of the device housing 11.

[0073] Alternatively, when the locking member 13 is in the first position and the second position, the mounting ends 1312 are either inside the device housing 11 or outside the device housing 11.

[0074] like Figures 1a-1c , Figures 6a-6c and Figures 9a-9c As shown, when the locking member 13 is in the first position, the operating part 1311 extends at least partially out of the device housing 11; when the locking member 13 is in the second position, the operating part 1311 is at least partially located inside the device housing 11; or when the locking member 13 is in the first position and the second position, the operating part 1311 is either inside the device housing 11 or outside the device housing 11.

[0075] Preferred, such as Figures 7a-7c As shown, the housing 11 of the device is thickened. When the adapter 1 is in the second position, the operating part 1311 and the mounting end 1312 are located inside the housing and will not extend from the sides of the housing 11, thus enhancing the aesthetics of the adapter 1 structure.

[0076] Preferred, such as Figures 5a-5b , Figures 8a-8b and Figures 10a-10bAs shown, the adapter 1 includes two circuit adapters 12, which are a first circuit adapter 123 for connecting to the L pole line and a second circuit adapter 124 for connecting to the N pole line. There is an electrical gap between the first circuit adapter 123 and the second circuit adapter 124 to achieve electrical insulation. The device connection portion 121 of the first circuit adapter 123 is a first device connection portion 1231, and the device wiring portion 122 of the first circuit adapter 123 is a first device wiring portion 1232. The first device connection portion 1231 includes at least one first connection terminal 1233. The device connection portion 121 of the second circuit adapter 124 is a second device connection portion 1241, and the device wiring portion 122 of the second circuit adapter 124 is a second device wiring portion 1242. The second device connection portion 1241 includes at least one second connection terminal 1243. The first connection terminal 1233 is connected to the L pole of the circuit breaker 2, and the second connection terminal 1243 is connected to the N pole of the circuit breaker 2.

[0077] In particular, in one possible implementation, the first circuit adapter 123 and the second circuit adapter 124 can move up and down in the height direction of the circuit breaker, and the locking member 13 can fix the first circuit adapter 123 and the second circuit adapter 124. Therefore, the first device connection part 1231 and the second device connection part 1241 can be in the same plane or can be offset up and down in the height direction of the circuit breaker. Thus, the adapter 1 can be used with various types of plug-in circuit breakers, making its application more extensive.

[0078] Preferably, the first device wiring portion 1232 and the second device wiring portion 1242 are on the same plane, that is, they are flush in a third direction (not shown in the figure); or, as Figures 1a-1c In the first embodiment shown, the first device wiring portion 1232 and the second device wiring portion 1242 are arranged parallel to each other in the second direction, and their projected portions in the second direction overlap, i.e., reference Figure 1c In the side view, the two external wires 14 are arranged in a way that is spaced back and forth and partially overlapped in the second direction. In the embodiment where the first device wiring portion 1232 and the second device wiring portion 1242 are on the same plane, the overlapping of the projected portions of the first device wiring portion 1232 and the second device wiring portion 1242 in the second direction can reduce the size of the device housing 11 in the third direction and ensure the creepage distance.

[0079] Preferred, such as Figures 9a-9c In the fourth embodiment shown, the first device connection portion 1231 and the second device connection portion 1241 are on the same plane; or, as shown... Figures 1a-1c ,like Figures 6a-6c ,like Figures 7a-7cThe first device connecting portion 1231 and the second device connecting portion 1241 are arranged parallel to each other at intervals in a first direction, preferably, as shown below. Figure 6a In the second embodiment shown, the projected portions of the first device connecting portion 1231 and the second device connecting portion 1241 overlap in the first direction, reducing the size of the device housing 11 in the third direction. Of course, it is also possible to... Figure 1a As shown, the first device connection portion 1231 and the second device connection portion 1241 are arranged sequentially along a third direction, and their projections in the first direction do not overlap. At least one first connection end 1233 and at least one second connection end 1243 are arranged sequentially along a third direction.

[0080] Preferably, the first device connection portion 1231 and the second device connection portion 1241 are arranged parallel to each other in a first direction. The first device connection portion 1231 includes at least two first connection ends 1233, and the second device connection portion 1241 includes at least two second connection ends 1243, such as... Figure 1a As shown, at least two first connecting ends 1233 and at least two second connecting ends 1243 are arranged sequentially along a third direction, that is, multiple first connecting ends 1233 are arranged first, and then multiple second connecting ends 1243 are arranged, or, as shown... Figure 6a As shown, the first connecting end 1233 and the second connecting end 1243 are arranged alternately along the third direction.

[0081] Specifically, in the first embodiment, such as Figures 1a-1c , Figures 5a-5b As shown, Figures 1a-1c A schematic diagram of a structure is shown, in which the first device connection portion 1231 and the second device connection portion 1241 are arranged parallel to each other in a first direction, and at least one first connection end 1233 and at least one second connection end 1243 are arranged sequentially in a third direction.

[0082] like Figure 5a and Figure 5b As shown, the first device connection portion 1231 includes two first connection ends 1233 spaced apart, the first device wiring portion 1232 includes a first through hole 1221, the right side of the first device wiring portion 1232 includes a first extension plate 1234 protruding from the first device connection portion 1231, and the first extension plate 1234 includes a first arc-shaped limiting edge 1235 located on the right side of the first through hole 1221.

[0083] The second device connection portion 1241 includes two second connection ends 1243 spaced apart. The second device wiring portion 1242 includes a first through hole 1221 located on the upper part of the second device wiring portion 1242. The right side of the second device wiring portion 1242 includes a first limiting notch 1244 and a first clearance notch 1245 from top to bottom. A first clearance hole 1246 is provided on the left side of the first clearance notch 1245. The left side of the second device wiring portion 1242 includes a first extension plate 1234 protruding from the second device connection portion 1241. The first extension plate 1234 includes a first arc-shaped limiting edge 1235 located on the left side of the first through hole 1221.

[0084] Second embodiment ( Figures 6a-6c ), Third embodiment ( Figures 7a-7c In the first embodiment, the first device connecting portion 1231 and the second device connecting portion 1241 are arranged parallel to each other in a first direction, and the first connecting end 1233 and the second connecting end 1243 are arranged alternately in a third direction. The structures of the first circuit adapter 123 and the second circuit adapter 124 are the same in the second embodiment and the third embodiment. Figure 8a and Figure 8b Schematic diagrams of the first circuit adapter 123 and the second circuit adapter 124 in these two embodiments are shown. The main difference between the third embodiment and the second embodiment is that the maximum thickness of the device housing 11 in the second direction in the third embodiment is greater than that in the second embodiment, so that the locking member 13 in the third embodiment will not protrude from the device housing 11.

[0085] Specifically, such as Figure 8a As shown, the first device connection part 1231 includes two first connection ends 1233 spaced apart, and the first device wiring part 1232 includes a first through hole 1221 and a first arc-shaped limiting edge 1235 located on the right side of the first through hole 1221.

[0086] like Figure 8b As shown, the second device connection portion 1241 includes two second connection ends 1243 spaced apart. The second device wiring portion 1242 includes a first through hole 1221 located at the upper part and a first arc-shaped limiting edge 1235 located to the left of the first through hole 1221. The right side of the second device wiring portion 1242 includes a first limiting notch 1244 and a first clearance notch 1245 from top to bottom. The left side of the second device wiring portion 1242 includes the first arc-shaped limiting edge 1235 and a second clearance notch 1250 from top to bottom. The first clearance notch 1245 and the second clearance notch 1250 correspond to each other on the left and right.

[0087] In the fourth embodiment, as Figures 9a-10bAs shown, the first device wiring portion 1232 and the second device wiring portion 1242 are arranged parallel to each other in the second direction, the first device connection portion 1231 and the second device connection portion 1241 are in the same plane, and at least one first connection end 1233 and at least one second connection end 1243 are arranged sequentially along the third direction.

[0088] Specifically, such as Figure 10a As shown, the first device connection portion 1231 includes two first connection ends 1233 spaced apart, the first device wiring portion 1232 includes a first through hole 1221 located at the upper part, the left side of the first device wiring portion 1232 includes a first extension plate 1234 protruding from the first device connection portion 1231, the left side of the first extension plate 1234 includes a first arc-shaped limiting edge 1235 and a first clearance notch 1245 from top to bottom, the first arc-shaped limiting edge 1235 is located to the left of the first through hole 1221, the right side of the first device wiring portion 1232 includes a first limiting notch 1244 and a second clearance notch 1250 from top to bottom, the first clearance notch 1245 and the second clearance notch 1250 correspond to each other on the left and right, and a first clearance hole 1246 is included between the first clearance notch 1245 and the second clearance notch 1250;

[0089] like Figure 10b As shown, the second device connection portion 1241 includes two second connection ends 1243 spaced apart, the second device wiring portion 1242 includes a first through hole 1221 located at the upper part, the left side of the second device wiring portion 1242 includes a first limiting notch 1244 and a first clearance notch 1245 from top to bottom, the right side of the second device wiring portion 1242 includes a first extension plate 1234 protruding from the second device connection portion 1241, the right side of the first extension plate 1234 includes a first arc-shaped limiting edge 1235 and a second clearance notch 1250 from top to bottom, the first arc-shaped limiting edge 1235 is located to the right of the first through hole 1221, the first clearance notch 1245 and the second clearance notch 1250 correspond to each other, and a first clearance hole 1246 is included between the first clearance notch 1245 and the second clearance notch 1250.

[0090] After the adapter 1 is plugged into the circuit breaker 2, it is fixed with screws along the second direction. The first clearance notch 1245, the first clearance hole 1246 and the second clearance notch 1250 are used to avoid the screws.

[0091] like Figure 4a and Figure 4bAs shown, the device housing 11 is provided with a first limiting structure that cooperates with and limits the first extension plate 1234, the first arc-shaped limiting edge 1235, and the first limiting notch 1244; the first limiting structure includes a first limiting post 1249 that cooperates with and limits the first limiting notch 1244 in the height direction of the circuit breaker 2. Wherein, Figure 4a and Figure 4b This is only a schematic diagram of the second housing 112. The structure of the first housing 111 is similar to that of the second housing 112, and they are installed together, so they are not shown again.

[0092] Preferably, the mounting rod 131 is a push-pull rod with a locking structure, the push-pull rod includes teeth, and the fastener 132 can lock the push-pull rod.

[0093] Preferred, such as Figures 2-4b As shown, in a preferred embodiment of this application, the mounting rod 131 is a screw, the fastener 132 is a nut, the nut is fixed inside the device housing 11, one end of the screw is the mounting end 1312, the mounting end 1312 passes through the nut, and the other end is the operating part 1311, the operating part 1311 faces the outside of the device housing 11 for easy operation.

[0094] In use, the circuit adapter 12 is adjusted to a suitable position, and the screw is rotated by the operating part 1311 to make the screw rotate into the device housing 11. The screw operating part 1311 has a large diameter and can clamp the device wiring part 122 with the nut, so that the circuit adapter 12 is fixedly connected to the device housing 11.

[0095] Furthermore, the device housing 11 includes a first mounting hole through which the screw passes and connects to the nut.

[0096] Preferred, such as Figure 2 As shown, the device housing 11 includes a first housing 111 and a second housing 112, which are installed along the width direction of the circuit breaker 2. Installation can be achieved by snap-fit ​​or by screws. In a preferred embodiment of this application, screws are used for fixing along the length direction of the circuit breaker 2.

[0097] Furthermore, such as Figures 2-4a and Figure 14As shown, the first housing 111 and the second housing 112 respectively include opposing limiting platforms 113 and limiting grooves 114. After the first housing 111 and the second housing 112 are installed, the limiting platforms 113 and the limiting grooves 114 clamp the nuts, thus fixing the nuts. In this embodiment, each of the first housing 111 and the second housing 112 is provided with a limiting platform 113 and a limiting groove 114, and the two limiting platforms 113 and the two limiting grooves 114 clamp two nuts. Alternatively, the first housing 111 can be provided with two limiting platforms 113, and the two second housings 112 can be provided with limiting grooves 114. Figure 14 This is a schematic diagram of the first and second housings being installed together.

[0098] Furthermore, such as Figures 4a-4b As shown in the embodiment of this application, the first housing 111 includes a first gap, the first circuit adapter 123 is limited within the first gap, the second housing 112 includes a second gap 115, the second circuit adapter 124 is limited within the second gap 115; the first limiting post 1249 is provided in the first gap and / or the second gap.

[0099] Preferably, the external conductor 14 is as follows: Figure 2 The structure shown has an external conductor 14 with a second through hole 141 at one end. The mounting rod 131 passes through the second through hole 141 to electrically connect the external conductor 14 to the circuit adapter 12. The external conductor 14 is easy to wire.

[0100] Furthermore, such as Figure 2 As shown, the external conductor 14 includes a flat terminal block 142 and a tubular wire lug 143. The terminal block 142 is made of metal for conducting electricity, and the wire lug 143 is made of insulating material, such as plastic. In use, one end of the wire is inserted into the tubular wire lug 143 and connected to the terminal block 142. The wire lug 143 is deformed by crimping pliers to fix the wire to the terminal block 142. The second through hole 141 is formed on the terminal block 142. The terminal block 142 is at least partially located inside the device housing 11, and the wire lug 143 is located outside the device housing 11, which facilitates the crimping of the terminal block 142 by using crimping pliers.

[0101] Furthermore, in other embodiments, the external conductor 14 may be of other structures, or the wire may not have a lug 143, and one end of the wire may extend directly into the device housing 11 and be electrically connected to the circuit adapter 12.

[0102] Furthermore, such as Figures 1a-2As shown, in a preferred embodiment of this application, the adapter 1 connects two external conductors 14, which are respectively connected to the first circuit adapter 123 and the second circuit adapter 124. The two external conductors 14 are staggered along the length of the circuit breaker 2, which can adapt to the staggered structure of the first device wiring part 1232 and the second device wiring part 1242, lengthen the electrical distance between the two external conductors 14, and prevent the circuit from being broken.

[0103] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used during use. They are only for ease of description and do not indicate that the device or component referred to must have a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating relative importance.

[0104] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. An adapter, comprising a device housing (11) and a circuit adapter (12), the circuit adapter (12) including a device connection portion (121) and a device wiring portion (122) for electrical connection with an external conductor (14), the device connection portion (121) at least partially extending out of the device housing (11) for plug-in engagement. The adapter (1) includes a wiring area (15) and an adapter area (16). The device wiring part (122) is disposed in the wiring area (15) and connected to the device connection part (121). The direction from the wiring area (15) to the adapter area (16) is a first direction, and the insertion direction of the device connection part (121) is a second direction. It also includes a third direction. The third direction, the second direction, and the first direction are perpendicular to each other. The thickness of the wiring area (15) in the second direction is greater than the thickness of the transition area (16) in the second direction, such that a first mounting notch (116) is formed on one side of the transition area (16), the device connection portion (121) is located in the transition area (16) and the device connection portion (121) extends at least partially from the transition area (16) into the first mounting notch (116).

2. The adapter according to claim 1, characterized in that, The device connection part (121) and the device wiring part (122) are bent and connected; the device wiring part (122) is arranged along the first direction, and the wiring area (15) is provided with a conductor connection part on the side away from the transition area (16). The insertion direction of the device wiring part (122) is perpendicular to the connection direction of the external conductor (14) and the transition device. And / or, the portion of the device connection (121) extending out of the device housing (11) is located within or partially extends out of the first mounting notch (116).

3. The adapter according to claim 1, characterized in that, The adapter (1) also includes a locking element (13) located in the wiring area (15), the locking element (13) being used to fix the external conductor (14) and the circuit adapter (12).

4. The adapter according to claim 3, characterized in that, When the locking member (13) is in the first position, the circuit adapter (12) can move along the first direction. When the locking member (13) is in the second position, the locking member (13) fixes the circuit adapter (12) to the device housing (11).

5. The adapter according to claim 4, characterized in that, The device wiring section (122) includes an elongated first through hole (1221), the length direction of which is arranged along a first direction, and / or, the locking member (13) includes a mounting rod (131) and a fastener (132) that cooperate for locking, the fastener (132) being fixed inside the device housing (11) or the mounting rod (131) being fixed inside the device housing (11).

6. The adapter according to claim 5, characterized in that, It includes two circuit adapters (12), namely a first circuit adapter (123) and a second circuit adapter (124). The device connection portion (121) of the first circuit adapter (123) is the first device connection portion (1231), and the device wiring portion (122) of the first circuit adapter (123) is the first device wiring portion (1232); the device connection portion (121) of the second circuit adapter (124) is the second device connection portion (1241), and the device wiring portion (122) of the second circuit adapter (124) is the second device wiring portion (1242). The first device connection portion (1231) includes at least one first connection end (1233), and the second device connection portion (1241) includes at least one second connection end (1243).

7. The adapter according to claim 6, characterized in that, The first device wiring portion (1232) and the second device wiring portion (1242) are on the same plane; or, the first device wiring portion (1232) and the second device wiring portion (1242) are arranged parallel to each other in the second direction, and their projected portions in the second direction overlap.

8. The adapter according to claim 6, characterized in that, The first device connecting part (1231) and the second device connecting part (1241) are on the same plane; or, the first device connecting part (1231) and the second device connecting part (1241) are arranged parallel to each other in a first direction.

9. The adapter according to claim 6, characterized in that, The first device connection portion (1231) and the second device connection portion (1241) are arranged parallel to each other in a first direction. The first device connection portion (1231) includes at least two first connection ends (1233), and the second device connection portion (1241) includes at least two second connection ends (1243). The at least two first connection ends (1233) and the at least two second connection ends (1243) are arranged sequentially in a third direction, or the first connection ends (1233) and the second connection ends (1243) are arranged alternately in a third direction. Alternatively, the first device connection portion (1231) and the second device connection portion (1241) are on the same plane, and at least one first connection end (1233) and at least one second connection end (1243) are arranged sequentially along a third direction.

10. The adapter according to claim 9, characterized in that, The first device connection part (1231) includes two first connection ends (1233) spaced apart, the first device wiring part (1232) includes a first through hole (1221), the right side of the first device wiring part (1232) includes a first extension plate (1234), and the first extension plate (1234) includes a first arc-shaped limiting edge (1235) located on the right side of the first through hole (1221). The second device connection part (1241) includes two second connection ends (1243) spaced apart. The second device wiring part (1242) includes a first through hole (1221) located on the upper part of the second device wiring part (1242). The right side of the second device wiring part (1242) includes a first limiting notch (1244) and a first clearance notch (1245) from top to bottom. A first clearance hole (1246) is provided on the left side of the first clearance notch (1245). The left side of the second device wiring part (1242) includes a first extension plate (1234). The first extension plate (1234) includes a first arc-shaped limiting edge (1235) located on the left side of the first through hole (1221).

11. The adapter according to claim 9, characterized in that, The first device connection part (1231) includes two first connection ends (1233) spaced apart, and the first device wiring part (1232) includes a first through hole (1221) and a first arc-shaped limiting edge (1235) located on the right side of the first through hole (1221). The second device connection part (1241) includes two second connection ends (1243) spaced apart. The second device wiring part (1242) includes a first through hole (1221) located at the top and a first arc-shaped limiting edge (1235) located to the left of the first through hole (1221). The right side of the second device wiring part (1242) includes a first limiting notch (1244) and a first clearance notch (1245) from top to bottom. The left side of the second device wiring part (1242) includes the first arc-shaped limiting edge (1235) and a second clearance notch (1250) from top to bottom. The first clearance notch (1245) and the second clearance notch (1250) are corresponding to each other on the left and right.

12. The adapter according to claim 8, characterized in that, The first device connection part (1231) includes two first connection ends (1233) spaced apart. The first device wiring part (1232) includes a first through hole (1221) located at the top. The left side of the first device wiring part (1232) includes a first extension plate (1234). The left side of the first extension plate (1234) includes a first arc-shaped limiting edge (1235) and a first clearance notch (1245) from top to bottom. The first arc-shaped limiting edge (1235) is located to the left of the first through hole (1221). The right side of the first device wiring part (1232) includes a first limiting notch (1244) and a second clearance notch (1250) from top to bottom. The first clearance notch (1245) and the second clearance notch (1250) are corresponding to each other on the left and right sides. A first clearance hole (1246) is included between the first clearance notch (1245) and the second clearance notch (1250). The second device connection part (1241) includes two second connection ends (1243) spaced apart. The second device wiring part (1242) includes a first through hole (1221) located at the top. The left side of the second device wiring part (1242) includes a first limiting notch (1244) and a first clearance notch (1245) from top to bottom. The right side of the second device wiring part (1242) includes a first extension plate (1234). The right side of the first extension plate (1234) includes a first arc-shaped limiting edge (1235) and a second clearance notch (1250) from top to bottom. The first arc-shaped limiting edge (1235) is located to the right of the first through hole (1221). The first clearance notch (1245) and the second clearance notch (1250) are corresponding to each other on the left and right sides, and a first clearance hole (1246) is included between the first clearance notch (1245) and the second clearance notch (1250).

13. The adapter according to claim 6, characterized in that, The device housing (11) includes a first housing (111) and a second housing (112), wherein the first housing (111) and the second housing (112) are installed along a third direction and fixed along a second direction; The first housing (111) includes a first gap, and the first circuit adapter (123) is limited within the first gap; the second housing (112) includes a second gap, and the second circuit adapter (124) is limited within the second gap; the first housing (111) and the second housing (112) respectively include opposing limiting platforms (113) and limiting grooves (114), and the limiting platforms (113) and limiting grooves (114) clamp the limiting fasteners (132).

14. The adapter according to claim 13, characterized in that, A first limiting post (1249) is provided in the first gap and / or the second gap, and the circuit adapter (12) includes a first limiting notch (1244) that cooperates with the first limiting post (1249) for limiting.

15. A switching structure for a circuit breaker, characterized in that, Includes a circuit breaker (2) and a switching device (1) as described in any one of claims 1-13. The circuit breaker (2) includes an operating end with a switching operation element and a second terminal. At least a portion of the operating end of the circuit breaker (2) with the second terminal extends into the first mounting notch (116). The first mounting notch (116) is located on the side of the switching area (16) near the circuit breaker (2).

16. The switching structure of the circuit breaker according to claim 15, characterized in that, The first mounting notch (116) includes a first fitting surface and a second fitting surface that are connected by a right-angle bend; the operating end of the circuit breaker (2) includes a third fitting surface located on the upper surface of the circuit breaker (2) and a fourth fitting surface located in front of the second terminal, the first fitting surface is in contact with the third fitting surface, and the second fitting surface is in contact with the fourth fitting surface.

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