CN218730663U - Pluggable contactor assembly and switch cabinet - Google Patents
Pluggable contactor assembly and switch cabinet Download PDFInfo
- Publication number
- CN218730663U CN218730663U CN202221505555.8U CN202221505555U CN218730663U CN 218730663 U CN218730663 U CN 218730663U CN 202221505555 U CN202221505555 U CN 202221505555U CN 218730663 U CN218730663 U CN 218730663U
- Authority
- CN
- China
- Prior art keywords
- contactor
- pluggable
- patch
- base module
- patching
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005611 electricity Effects 0.000 claims abstract 2
- 239000004020 conductor Substances 0.000 claims description 42
- 230000013011 mating Effects 0.000 claims description 7
- 230000014759 maintenance of location Effects 0.000 claims 1
- 230000007704 transition Effects 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Landscapes
- Patch Boards (AREA)
Abstract
The utility model relates to a but plug contactor subassembly, it includes: a base module comprising an electrically interconnectable patch socket and a main loop connection terminal configured to connect to a main loop; the contactor module, but install with dismantling the base module, the contactor module includes the contactor, the contactor be provided with the adapter socket electricity of base module interconnects's connecting terminal. The utility model discloses still relate to a cubical switchboard, the cubical switchboard includes above-mentioned but plug contactor subassembly, wherein, but plug contactor subassembly via base module fixed connection to the cabinet body of cubical switchboard.
Description
Technical Field
The utility model relates to a but plug contactor subassembly and including the cubical switchboard of this kind of plug contactor subassembly.
Background
In the prior art, contactors are generally fixed contactors, that is, the whole contactor is fixed in a switch cabinet, and a connecting terminal of the contactor is connected to a bus bar of a main circuit at the back side of the switch cabinet, so that the fixed contactor cannot be overhauled and replaced as fast as a plug-in plastic shell, and the connecting terminal of the fixed contactor must be firstly wound to the back side of the switch cabinet to be disconnected from the bus bar of the main circuit, which limits the use of the fixed contactor in the fixed switch cabinet. In addition, according to the conventional coupling manner of the molded case circuit breaker and the contactor in the drawer, a primary circuit (a main circuit) and a secondary circuit (a control circuit) between the molded case circuit breaker and the contactor and linked to the drawer terminal are simultaneously present in the drawer due to the attachment limitation of the current contactor product, and the wiring is complicated. And when the drawer door is opened, the electric body is touched with a certain probability. And, because circuit breaker and contactor are fixed connection when the drawer, when circuit breaker or contactor broke down, need take out whole drawer and maintain, and the assembly of drawer in whole cabinet body is comparatively complicated, and whole drawer is taken out and is maintained and need longer time, has increased outage time.
To achieve more convenient and rapid maintenance of the contactor, a pluggable contactor assembly is needed.
SUMMERY OF THE UTILITY MODEL
Therefore, according to an aspect of the present invention, a pluggable contactor assembly is provided, including: a base module comprising a base and a patch socket and a main loop connection terminal supported by the base and electrically interconnectable, the main loop connection terminal configured to connect to a main loop; a contactor module detachably mounted to the base module, the contactor module including a contactor provided with a connection terminal electrically interconnected with the adaptor socket of the base module.
According to various embodiments of the present invention, the proposed pluggable contactor assembly may comprise one or more of the following further developments.
In some embodiments, the contactor module further comprises a patch terminal subassembly configured to connect the connection terminals of the contactors with a patch receptacle of the base module.
In some embodiments, the patch terminal sub-assembly includes interconnected patch conductors configured to interconnect with the connection terminals of the contactor, and a patch plug configured to be inserted into a patch receptacle of the base module to interconnect with the patch receptacle.
In some embodiments, the patch conductor includes an input terminal hole and an output terminal hole, and the patch conductor is connected to the connection terminal of the contactor by a screw inserted into the input terminal hole and connected to the patch plug by a screw inserted into the output terminal hole.
In some embodiments, the patch plug includes a threaded bore section corresponding to the output end bore of the corresponding patch conductor to receive a screw and a plug section disposed opposite the threaded bore section configured to be inserted into a patch receptacle of the base module.
In some embodiments, the patch terminal sub-assembly further includes a housing configured to retain the patch conductor and the patch plug.
In some embodiments, the housing includes a retaining wall configured to retain at least the transit conductors, the retaining wall being provided with apertures, each transit conductor passing through a respective aperture such that the input and output port apertures are located on either side of the retaining wall.
In some embodiments, each transit conductor is provided with a stop protrusion configured to limit the positioning of the transit conductor in the respective hole.
In some embodiments, the patch receptacle is configured to include a receiving end and a terminating end, and has two resiliently deformable gripping branches at the receiving end, the two gripping branches configured to retain a respective patch plug by resilient deformation.
In some embodiments, the primary loop connection terminal has an input configured to connect with the transition end of the transition socket via a plug connection and an output provided with a threaded portion for connection with a corresponding bus bar of the primary loop.
In some embodiments, the contactor further comprises a fixing portion, and the base module comprises a mating fixing portion, the fixing portion mating with the mating fixing portion to detachably fix the contactor with respect to the base module.
According to another aspect of the present invention, a switchgear is proposed, which comprises a pluggable contactor assembly according to the above, wherein the pluggable contactor assembly is via the base module is fixed to the cabinet body of the switchgear.
Drawings
To more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present disclosure and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings may be obtained from the drawings without inventive effort. In the drawings:
figure 1 illustrates a perspective schematic view of a pluggable contactor assembly according to one embodiment of the present invention;
figure 2 illustrates a perspective view of the pluggable contactor assembly of figure 1 with the cage removed;
fig. 3 shows a schematic perspective view of a contactor module according to an embodiment of the invention;
figure 4 shows a perspective schematic view of the contacts of the contact module shown in figure 3;
figure 5 illustrates a perspective view of the patching terminal subassembly of the contactor module shown in figure 3;
figure 6 shows a cross-sectional view of the patching terminal subassembly shown in figure 5;
figure 7 shows a perspective view of the patching conductors of the patching terminal subassembly shown in figure 5;
fig. 8 shows a partially cut-away perspective schematic view of a base module according to an embodiment of the invention;
FIG. 9 is a perspective view of the patch socket and main loop connection terminal of the base module of FIG. 8;
figure 10 illustrates a perspective view of the cage of the pluggable contactor assembly of figure 1.
List of reference numerals:
1. pluggable contactor assembly
10. Base module
500. Base seat
520. Fitting fixing part
100. Adapter socket
110. Receiving end
111. Clamping branch
120. Switching end
200. Main loop connecting terminal
210. Input terminal
220. Output end
30. Contactor module
300. Contactor
310. Connecting terminal
320. Fixing part
400. Adapting terminal subassembly
410. Adapting conductor
411. Input end hole
412. Output port hole
413. Spacing protrusion
420. Adapter plug
421. Plug-in section
422. Threaded bore section
430. Shell body
431. Retaining wall
432. Roof wall
4321. First hollow part
4322. Second hollow part
433. First side wall
434. Second side wall
435. Holding part
600. Cover
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
Hereinafter, a pluggable contactor assembly and a switchgear according to embodiments of the present disclosure are described in detail with reference to the accompanying drawings. To make the objects, technical solutions and advantages of the present disclosure more clear, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are some, but not all embodiments of the present disclosure.
Thus, the following detailed description of the embodiments of the present disclosure, presented in conjunction with the figures, is not intended to limit the scope of the claimed disclosure, but is merely representative of selected embodiments of the disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
The singular forms include the plural unless the context otherwise dictates otherwise. Throughout the specification, the terms "comprises," "comprising," "has," "having," "includes," "including," "having," "including," and the like are used herein to specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.
In addition, even though terms including ordinal numbers such as "first", "second", etc., may be used to describe various elements, the elements are not limited by the terms, and the terms are used only to distinguish one element from another. For example, a first component could be termed a second component, and, similarly, a second component could be termed a first component, without departing from the scope of the present disclosure.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the disclosed product is used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are merely for convenience of description and simplification of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present disclosure.
As shown in fig. 1-4 and 8, according to an embodiment of the present invention, a pluggable contactor assembly 1 is proposed, which comprises a base module 10 and a contactor module 30 detachably mounted to the base module 10, the base module 10 comprising a base 500 and an adaptor socket 100 supported by the base 500 and capable of being electrically interconnected and a main circuit connecting terminal 200, the main circuit connecting terminal 200 being configured to be connected to a main circuit (not shown), more specifically to a bus bar of the main circuit; the contactor module 30 comprises contactors 300, which contactors 300 can be received, for example, at least partially in a base 500 of the base module 10 and are provided with connection terminals 310, which connection terminals 310 are connected with the patch sockets 100 of the base module 10. Thereby, the connection terminals 310 of the contactors 300 of the contactor module 30 detachably mounted to the base module 10 are coupled with the relay sockets 100 of the base module 10, the relay sockets 100 are electrically interconnected with the main circuit connection terminals 200 of the base module 10, and the main circuit connection terminals 200 are also connected to the main circuit, thereby achieving connection of the contactors 300 to the main circuit. And since the contactor module 30 is detachably mounted to the base module 10, the contactor module 30 can be easily detached from the base module 10 when the contactor module 30 malfunctions and needs to be repaired or replaced. It should be noted that in a specific embodiment, the pluggable contactor module 1 is used in a switchgear and the base module 10 thereof may be fixed to a cabinet body (not shown) of the switchgear, such pluggable contactor module 1 makes it possible to eliminate the need to provide a conventional drawer in the switchgear, thereby simplifying the structure of the switchgear and improving cost efficiency.
As shown in fig. 2-3 and 5-7, in some embodiments, the contactor module 30 may further include a patching terminal subassembly 400 to connect the connection terminals 310 of the contactors 300 with the patching receptacles 100 of the base module 10. More specifically, the patching terminal subassembly 400 may include interconnected patching conductors 410 and patching plugs 420, the patching conductors 410 being configured to interconnect with the connection terminals 310 of the contacts 300, and the patching plugs 420 being configured to be inserted into the patching receptacles 100 of the base module 10 to interconnect with the patching receptacles 100. As shown in fig. 5-7, in some embodiments, the patch conductor 410 may be, for example, a patch copper bar, which may include an input terminal hole 411 and an output terminal hole 412 disposed opposite to each other, and the patch conductor 410 may be connected to the connection terminal 310 of the contactor 300 by a screw inserted into the input terminal hole 411 thereof, and connected to the patch plug 420 by a screw inserted into the output terminal hole 412. More specifically, as shown in the drawing, the connection terminal 310 of the contactor 300 is provided with a hole corresponding to the input terminal hole 411 of the transit conductor 410, thereby connecting the transit conductor 410 with the contactor 300 by a screw inserted into the hole and the input terminal hole 411. Likewise, the patch plug 420 of the patch terminal assembly 400 can be provided with a threaded bore section 422 corresponding to the output port hole 412 of the patch conductor 410 and a plug section 421 opposite the threaded bore section 422, whereby the patch plug 420 is connected to the patch conductor 410 by screws inserted through the output port hole 412 of the patch conductor 410 and the threaded bore section 422 of the patch plug 420, and the plug section 421 is used to be inserted into the patch socket 100 of the base module 10, thereby interconnecting the patch terminal assembly 400 to the base module 10 and, thus, interconnecting the contactor 300 to the base module 10.
In some embodiments, as shown in fig. 2-3 and 5-6, patching terminal sub-assembly 400 can further include a housing 430 configured to hold patching conductors 410 and patching plugs 420. More specifically, housing 430 may include a retaining wall 431 configured to retain at least transconductor 410, the retaining wall 431 being provided with holes, each transconductor 410 passing through a respective hole transverse to retaining wall 431 such that input terminal hole 411 and output terminal hole 412 of transconductor 410 are located on either side of retaining wall 431. In a more specific embodiment, as shown, the housing 430 may include a top wall 432 and first and second side walls 433 and 434 interconnecting the top wall 432 on opposite sides of the top wall 432 to define an interior space, with the retaining wall 431 being disposed to extend transversely to the top wall 432 toward the interior space. More specifically, in some embodiments, as shown in fig. 7, each patch conductor 410 is provided with a stop protrusion 413, the stop protrusion 413 being configured to limit the positioning of the patch conductor 410 in the corresponding hole, i.e., the depth of insertion of the patch conductor 410 into the corresponding hole. For example, the stopper protrusions 413 may be provided on a side surface or opposite two side surfaces of the transit conductor 410, i.e., each stopper protrusion 413 protrudes with respect to the corresponding side surface, thereby being able to be caught at an edge of the corresponding hole to limit the positioning of the transit conductor 410 in the corresponding hole; more specifically, the input terminal hole 411 and the output terminal hole 412 of the transit conductor 410 may be provided at opposite longitudinal ends of the transit conductor 410, and the stopper protrusion 413 is provided on a side surface of the transit conductor 410 parallel to the longitudinal direction. In embodiments not shown in the figures, the stop protrusion may be provided on a major surface or on two opposing major surfaces of patch conductor 410.
5-6, in a more specific embodiment, housing 430 may also be provided with a retaining portion 435 for retaining threaded bore segments 422 of patch plug 420, such retaining portion 435 being provided, for example, to form a receiving cavity for surrounding the periphery and possibly an end face of the respective threaded bore segment 422. Furthermore, the holder 435 may be fixed to the holding wall 431, for example, by a projection on the holder 435 snapping into the holding wall 431.
Thus, in the above-described embodiments, housing 430, patching conductors 410, and patch plug 420 of the patching terminal subassembly 400 can be configured such that the patching terminal subassembly 400 can be connected with the contactor 300 as a pre-assembled subassembly. To this end, first and second hollows 4321 and 4322 corresponding to the input and output terminal holes 411 and 412 of the transit conductor 410, respectively, may also be provided in the top wall 432 of the housing 430 to allow the respective screws inserted into the input and output terminal holes 411 and 412 to be tightened or loosened from outside the transit conductor 410.
As shown in fig. 8-9, in some embodiments, the patch socket 100 of the base module 10 can be configured to include a receiving end 110 and a patch end 120, and have two resiliently deformable gripping branches 111 at the receiving end 110, the two gripping branches 111 being configured to be capable of resiliently deforming to retain a respective patch plug 420 inserted therein, and more particularly to retain a plug section 421 of the respective patch plug 420 inserted therein. It should be understood that the patch socket 100 is not limited to the particular configuration described herein, but may have any flexible or resilient configuration capable of retaining a corresponding patch plug.
As shown in fig. 8-9, in some embodiments, the primary loop connection terminals 200 of the base module 10 have input ends 210 and output ends 220, the input ends 210 being configured to connect with the transition ends 120 of the transition socket 100 via a plug-in connection, i.e., in one specific embodiment, as shown, the transition ends 120 of the transition socket 100 may be provided in the form of holes, and the input ends 210 of the primary loop connection terminals 200 of the base module 10 may be plugged into the hole-shaped transition ends 120 of the transition socket 100; in yet another embodiment not shown in the drawings, the input end 210 of the main circuit connecting terminal 200 may be provided in the form of a hole, and accordingly, the relay end 120 of the relay socket 100 may be inserted into the input end 210 of the main circuit connecting terminal 200. In order to connect the main circuit connecting terminal 200 of the base module 10 to the corresponding bus bar of the main circuit, the output end 220 of the main circuit connecting terminal 200 may be provided with a threaded portion for connection with the corresponding bus bar of the main circuit, for example, the threaded portion may be provided as an internal threaded portion or an external threaded portion according to actual needs.
In some embodiments, as shown in fig. 1-4 and 8, to further secure the mounting of the contactor 300 to the base module 10, or the mounting of the contactor module 30 to the base module 10, the contactor 300 may further be provided with a fixing portion 320, and a mating fixing portion 520 is correspondingly provided in the base 500 of the base module 10, and the fixing portion 320 and the mating fixing portion 520 may cooperate to detachably fix the contactor 300 relative to the base module 10, such as screwing, riveting, and the like.
In some embodiments, as shown in fig. 1 and 10, the pluggable contactor assembly 1 of the present invention may further include a cover 600 for covering the housing 430 of the relay terminal subassembly 400, where the cover 600 may insulate and protect the related components.
Furthermore, according to another aspect of the present invention, a switchgear is proposed, which comprises a pluggable contactor assembly 1 according to the above, wherein this pluggable contactor assembly 1 is fixed to the cabinet body of the switchgear via the base module 10. Thus, the switch cabinet can be provided without a drawer for installing the contactor, so that the design and the structure are simpler.
Therefore, according to the utility model provides a but plug contactor subassembly, the base module can be fixed to be set up on the cabinet body of cubical switchboard for example, and the contactor module then can detachably install the base module for when contactor breaks down and needs maintenance or change, can keep fixing the cabinet body at the cubical switchboard at the base module while, dismantle the contactor module from the base subassembly, and need not break off the connection between base subassembly and the major loop. This greatly facilitates installation and maintenance, replacement, etc. of the contactor module.
The exemplary embodiments of the pluggable contactor module and the switch cabinet proposed by the present invention have been described in detail with reference to the preferred embodiments, however, it will be understood by those skilled in the art that various modifications and changes can be made to the above specific embodiments without departing from the concept of the present invention, and various combinations of the various technical features and structures proposed by the present invention can be implemented without departing from the scope of the present invention.
The scope of the present disclosure is not defined by the above-described embodiments but is defined by the appended claims and equivalents thereof.
Claims (12)
1. A pluggable contactor assembly, comprising:
a base module comprising a base and a patch socket and a main loop connection terminal supported by the base and electrically interconnectable, the main loop connection terminal configured to connect to a main loop;
the contactor module, but install with dismantling the base module, the contactor module includes the contactor, the contactor be provided with the adapter socket electricity of base module interconnects's connecting terminal.
2. The pluggable contactor assembly of claim 1, wherein the contactor module further comprises an adaptor terminal subassembly configured to connect the connection terminals of the contactor with an adaptor socket of the base module.
3. The pluggable contactor assembly of claim 2, wherein the patching terminal subassembly comprises interconnected patching conductors configured to interconnect with the connection terminals of the contactor and a patching plug configured to be inserted into a patching receptacle of the base module to interconnect with the patching receptacle.
4. The pluggable contactor assembly of claim 3, wherein the patching conductors include an input terminal hole and an output terminal hole, the patching conductors being connected with the connection terminals of the contactor by screws inserted into the input terminal hole and being connected with the patching plug by screws inserted into the output terminal hole.
5. The pluggable contactor assembly of claim 4, wherein the patch plug includes a threaded bore section corresponding to the output end holes of the corresponding patch conductors for receiving screws and a plug section disposed opposite the threaded bore section, the plug section configured to be inserted into the patch receptacle of the base module.
6. The pluggable contactor assembly of claim 4 or 5, wherein the patch terminal subassembly further comprises a housing configured to retain the patch conductors and the patch plug.
7. The pluggable contactor assembly of claim 6, wherein the housing includes a retaining wall configured to retain at least the transit conductors, the retaining wall being provided with holes, each transit conductor passing through a respective hole, such that the input terminal hole and the output terminal hole are located on either side of the retaining wall.
8. The pluggable contactor assembly of claim 7, wherein each transfer conductor is provided with a retention protrusion configured to limit the positioning of the transfer conductor in the corresponding aperture.
9. The pluggable contactor assembly of any of claims 2-5, wherein the patch receptacle is configured to include a receiving end and a terminating end, and having two resiliently deformable gripping branches at the receiving end, the two gripping branches being configured to retain a corresponding patch plug by resilient deformation.
10. The pluggable contactor assembly of claim 9, wherein the main circuit connection terminal has an input end configured to connect with the patching end of the patching receptacle via a plug-in connection and an output end provided with a threaded portion for connecting with a corresponding bus bar of the main circuit.
11. The pluggable contactor assembly of any of claims 1-5, wherein the contactor further comprises a fixing portion, the base module comprising a mating fixing portion, the fixing portion cooperating with the mating fixing portion to detachably fix the contactor relative to the base module.
12. A switchgear cabinet, characterized in that the switchgear cabinet comprises a pluggable contactor assembly according to any of claims 1-11, wherein the pluggable contactor assembly is fixed to the cabinet body of the switchgear cabinet via the base module.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202220808384 | 2022-04-08 | ||
CN202220808384X | 2022-04-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN218730663U true CN218730663U (en) | 2023-03-24 |
Family
ID=85605872
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202221505555.8U Active CN218730663U (en) | 2022-04-08 | 2022-06-15 | Pluggable contactor assembly and switch cabinet |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN218730663U (en) |
-
2022
- 2022-06-15 CN CN202221505555.8U patent/CN218730663U/en active Active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6220880B1 (en) | Electric outlets | |
US9972819B2 (en) | Connector for battery unit, and battery unit provided with same | |
RU2427952C2 (en) | Distribution cell of intermediate or high voltage electric power with built-in digital communication and multi-function module for such cell | |
CN114223101B (en) | Electric connector | |
US8414334B2 (en) | Holder-mounting structure | |
MXPA01010756A (en) | Low profile combination switch and connector assembly. | |
EP3876353B1 (en) | Terminal block and terminal block set | |
CN218730663U (en) | Pluggable contactor assembly and switch cabinet | |
US8507809B2 (en) | Component-equipped-holder mounting structure | |
CN211404810U (en) | High-voltage interlocking mechanism for high-voltage connector | |
CN220368172U (en) | Relay adapter and connector assembly | |
CN118398441A (en) | High-voltage direct-current relay | |
CN101142650A (en) | Switchable fused power distribution block | |
RU2388120C2 (en) | Component of junction box and screw-free connector | |
US20220077607A1 (en) | Modular plug connector for a printed circuit board | |
CN1258801C (en) | Support base for circuit breaker | |
US11735845B2 (en) | Power connector | |
CN212365882U (en) | Secondary terminal connecting assembly and universal circuit breaker | |
CN216355867U (en) | Quick-connection bus duct and data center power distribution system | |
US20240154326A1 (en) | Plug connection including a plug connector and a plug socket | |
CN220651923U (en) | Circuit breaker | |
EP3767766B1 (en) | Electric or electronic device | |
CN212968303U (en) | Electric leakage module and electric leakage circuit breaker | |
CN218498015U (en) | Fuse module and power distribution unit | |
CN219329456U (en) | Busbar |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |