Circuit breaking plug and circuit breaker
By designing the mechanical structure of the circuit breaker plug, the telescopic parts and transmission parts disconnect the electrical connection when leakage is used, the threat of leakage to personal safety is solved, small and compact leakage current protection is achieved, and production costs are reduced.
Patent Information
- Application Number
- CN202421138764.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-23
AI Technical Summary
During the use of electrical equipment, leakage may cause electric shock to users and endanger life safety. The existing technology is difficult to effectively prevent the harm of leakage current to personal safety.
A circuit breaker plug is designed, including a first circuit board, a circuit breaker assembly, a second circuit board and a pin. The mechanical structure of the telescopic element, a transmission element, a moving contact, and a static contact are used to operate when the electrical circuit is working normally. It is attracted to the static contact to form an electrical connection; when leakage occurs, the telescopic member extends, driving the transmission member to rotate, disconnect the moving contact from the static contact, and disconnect the electrical connection to avoid leakage.
It realizes automatic disconnection of the power supply before the leakage current reaches the amount of harmful to the human body, protecting the personal safety of users, and the circuit breaker is small in size and simple in structure, reducing production costs.
Smart Images
Figure CN222300903U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of leakage protection, in particular to a disconnect plug and a circuit breaker. Background Art
[0002] At present, when users are using electrical equipment, if the electrical equipment sends leakage, in its electrical circuit, there must be a part of the current that does not flow back to the transformer from the live wire through the neutral wire, but flows into the earth through the ground wire or "conductors" such as the human body, forming a "branch" outside the main circuit, thus causing the phenomenon of "leakage". When this part of the current flows into the earth through the user, it causes the user to get an electric shock, thus endangering the user's life safety. At this time, leakage is generally avoided by using a circuit breaker. If leakage occurs, the power supply of the electrical equipment is automatically cut off before the leakage current reaches the current amount that can harm the human body, so as to protect the user's personal safety.
[0003] The above information disclosed in the Background section is only for enhancement of understanding of the background of the present disclosure and therefore it may include information that does not constitute the prior art that is already known to one of ordinary skill in the art. Summary of the invention
[0004] The utility model provides a disconnect plug and a circuit breaker, which can prevent leakage current in electrical equipment from causing harm to the personal safety of users.
[0005] In a first aspect, the present disclosure provides a disconnect plug, comprising:
[0006] a first circuit board;
[0007] A circuit breaker assembly is located on the first circuit board and includes a bracket, a telescopic member, a connecting member and a transmission member, wherein the bracket is located on the first circuit board, the connecting member is rotatably connected to the bracket, the connecting member is located between the telescopic member and the transmission member, one end of the connecting member is engaged with the telescopic member, the other end of the connecting member is in contact with the end surface of the transmission member, the transmission member is rotatably connected to the bracket, and a moving contact is also provided on the transmission member;
[0008] A second circuit board is located on a side of the bracket away from the first circuit board, and a static contact corresponding to the moving contact is provided on a side of the second circuit board close to the first circuit board;
[0009] The pin is located at a side of the second circuit board away from the first circuit board.
[0010] In an exemplary embodiment of the present disclosure, the bracket is provided with a first through hole and a second through hole, the second through hole is located on a side of the first through hole away from the first circuit board, the connecting member is rotatably connected to the bracket through the first through hole, and the transmission member is rotatably connected to the bracket through the second through hole.
[0011] In an exemplary embodiment of the present disclosure, the telescopic member includes a piston rod and a piston chamber slidably matched with the piston rod.
[0012] In an exemplary embodiment of the present disclosure, the piston rod is made of metal, and a coil is disposed in the piston cavity.
[0013] In an exemplary embodiment of the present disclosure, the connecting member includes a U-shaped groove and a first protrusion arranged at one end of the U-shaped groove, and a second protrusion is arranged at the end of the piston rod away from the piston cavity, and the diameter of the second protrusion is larger than the slot width of the U-shaped groove.
[0014] In an exemplary embodiment of the present disclosure, the first protrusion is provided with a first bump corresponding to the first through hole, the extension direction of the first bump is the same as the axial direction of the first through hole, and the diameter of the first bump is the same as the diameter of the first through hole.
[0015] In an exemplary embodiment of the present disclosure, the transmission member includes a contact frame and a contact arm, the contact arm is fixed on the contact frame, a moving contact is provided at one end of the contact arm, the contact frame includes a first contact frame and a second contact frame which are perpendicular to each other, the first contact frame is provided with a second protrusion corresponding to the second through hole, the extension direction of the second protrusion is the same as the axial direction of the second through hole, the diameter of the second protrusion is the same as the diameter of the second through hole, and the second contact frame is in contact with the connecting member on a side close to the first circuit board.
[0016] In an exemplary embodiment of the present disclosure, the disconnect plug also includes an elastic member, and a third protrusion is further provided on the bracket, the third protrusion is located on a side of the second through hole close to the first circuit board, one end of the elastic member is connected to the third protrusion, and the other end is connected to the first contact frame.
[0017] In an exemplary embodiment of the present disclosure, the elastic member is a spring, and a length extension direction of the spring is the same as a length extension direction of the first contact frame.
[0018] According to a second aspect of the present disclosure, a circuit breaker is provided, comprising: a base, a cover body and the above-mentioned circuit breaker plug, wherein the base and the cover body are detachably matched, and when the base and the cover body are closed, a receiving cavity is provided, the circuit breaker plug is located in the receiving cavity, and the pins of the circuit breaker plug are exposed at the end surface of the base.
[0019] Beneficial effects:
[0020] According to the circuit breaker plug provided by the present disclosure, its pins are used to connect to the socket. When the electrical circuit in the electrical equipment works normally, the telescopic part shortens. Since the telescopic part and the transmission part are connected to the bracket and rotate in the same direction, the transmission part is driven to rotate, so that the moving contact and the static contact are attracted. When the electrical circuit has leakage, the telescopic part extends, driving the connecting part and the transmission part to rotate in the opposite direction, so that the moving contact and the static contact are disconnected, thereby disconnecting the electrical connection between the switch and the electrical equipment, so as to disconnect the electrical circuit and avoid the leakage current affecting the personal safety of the user. In addition, the circuit breaker in the present disclosure is small in size, and the structure is relatively simple and compact, which can easily achieve the protection function of leakage current, thereby reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0022] Figure 1 It is a structural schematic diagram of a circuit breaker plug according to an embodiment of the present disclosure.
[0023] Figure 2 yes Figure 1 A schematic diagram of the exploded structure of a circuit breaker plug is shown.
[0024] Figure 3 It is a structural schematic diagram of a circuit breaker according to an embodiment of the present disclosure.
[0025] Description of reference numerals:
[0026] 001, circuit breaker plug; 100, first circuit board; 105, second circuit board; 110, bracket; 120, telescopic member; 130, connecting member; 140, transmission member; 150, moving contact; 160, static contact; 170, plug pin; 180, piston rod; 190, piston chamber; 200, coil; 210, U-shaped groove; 220, first protrusion; 230, second protrusion; 240, first through hole; 250, second through hole; 260, first bump; 270, first contact frame; 280, second contact frame; 290, contact arm; 300, second bump; 310, elastic member; 320, third bump; 330, base; 340, cover. DETAILED DESCRIPTION
[0027] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the disclosure will be more comprehensive and complete and the concepts of the example embodiments are fully conveyed to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present disclosure.
[0028] The described features, structures or characteristics may be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or more of the specific details, or other methods, components, materials, etc. may be adopted. In other cases, known structures, materials or operations are not shown or described in detail to avoid blurring the main technical ideas of the present disclosure.
[0029] When a structure is “on” another structure, it may mean that the structure is integrally formed on the other structure, or that the structure is “directly” disposed on the other structure, or that the structure is “indirectly” disposed on the other structure via another structure.
[0030] The terms "a", "an", "the" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to indicate an open-ended inclusive meaning and mean that there may be additional elements / components / etc. in addition to the listed elements / components / etc. The terms "first" and "second" etc. are used only as labels and are not intended to limit the quantity of their objects.
[0031] At present, when users are using electrical equipment, if the electrical equipment has leakage, in its electrical circuit, there will inevitably be a part of the current that does not flow back to the transformer from the live wire through the neutral wire, but flows into the earth through the ground wire or "conductors" such as the human body, forming a "branch" outside the main circuit, thus causing the phenomenon of "leakage". When this part of the current flows into the earth through the user, it causes the user to be electrocuted, thereby endangering the user's life safety. At this time, leakage is generally avoided by using a circuit breaker. If leakage occurs, the power supply of the electrical equipment will be automatically cut off before the leakage current reaches the current amount that can harm the human body, so as to protect the user's personal safety.
[0032] like Figure 1-Figure 2 As shown, a circuit breaker plug 001 is provided in an embodiment of the present disclosure, and the circuit breaker plug 001 includes a first circuit board 100, a circuit breaker assembly, a second circuit board 105, and a pin 170. The circuit breaker assembly is located on the first circuit board 100, and includes a bracket 110, a telescopic member 120, a connecting member 130, and a transmission member 140. The bracket 110 is located on the first circuit board 100, and the connecting member 130 is rotatably connected to the bracket 110. The connecting member 130 is located between the telescopic member 120 and the transmission member 140. One end of the connecting member 130 is engaged with the telescopic member 120, and the other end of the connecting member 130 is in contact with the end face of the transmission member 140. The transmission member 140 is rotatably connected to the bracket 110, and a moving contact 150 is also provided on the transmission member 140. The second circuit board 105 can be located on a side of the bracket 110 away from the first circuit board 100, and a static contact 160 corresponding to the moving contact 150 is provided on a side of the second circuit board 105 close to the first circuit board 100. The pin 170 may be located on a side of the second circuit board 105 away from the first circuit board 100 .
[0033] According to the circuit breaker plug 001 provided by the present disclosure, its pin 170 is used to connect the socket. When the electrical circuit in the electrical device works normally, the telescopic member 120 is shortened. Since the telescopic member 120 and the transmission member 140 are connected to the bracket 110 by rotation, and the transmission member 140 is driven to rotate in the same direction, the moving contact 150 and the static contact 160 are attracted to each other; when the electrical circuit has leakage, the telescopic member 120 is extended, driving the connecting member 130 and the transmission member 140 to rotate in the opposite direction, so that the moving contact 150 and the static contact 160 are disconnected, thereby disconnecting the electrical connection between the pin 170 and the socket, so as to disconnect the electrical circuit and avoid the leakage current affecting the personal safety of the user. In addition, the circuit breaker in the present disclosure is small in size, and the structure is relatively simple and compact, which can easily achieve the protection function of leakage current, thereby reducing the production cost.
[0034] The following is a detailed description of the various components of the disconnect plug 001 provided in the embodiment of the present disclosure in conjunction with the accompanying drawings:
[0035] In one embodiment of the present disclosure, the bracket 110 is provided with a first through hole 240 and a second through hole 250, the second through hole 250 is located on the side of the first through hole 240 away from the first circuit board 100, the connecting member 130 is rotatably connected to the bracket 110 through the first through hole 240, and the transmission member 140 is rotatably connected to the bracket 110 through the second through hole 250.
[0036] Optionally, the telescopic member 120 includes a piston rod 180 and a piston chamber 190 slidably matched with the piston rod 180. The piston rod 180 can be extended or shortened in the piston chamber 190.
[0037] For example, the material of the piston rod 180 is metal. Specifically, the material of the piston rod 180 can be a magnetic metal material, such as iron, cobalt, nickel, etc.
[0038] For example, a coil 200 may be provided in the piston chamber 190. When the pin 170 is inserted into the socket, the coil 200 is energized, thereby generating magnetic force. Since the piston rod 180 is made of magnetic material, the piston rod 180 moves toward the coil 200 to shorten the piston rod 180. When the piston rod 180 shortens, the telescopic member 120 and the transmission member 140 are rotatably connected with the bracket 110, and the transmission member 140 is driven to rotate in the same direction, so that the moving contact 150 and the static contact 160 are attracted to each other. When leakage current is generated in the electrical circuit, the coil 200 loses power, the coil 200 loses magnetic attraction, and the piston rod 180 stops moving toward the coil 200. The moving contact 150 is disconnected from the static contact 160 due to gravity, thereby disconnecting the electrical connection between the pin 170 and the socket, so as to disconnect the electrical circuit and prevent leakage current from affecting the personal safety of the user.
[0039] In one embodiment of the present disclosure, the connecting member 130 includes a U-shaped groove 210 and a first protrusion 220 disposed at one end of the U-shaped groove 210, and a second protrusion 230 is disposed at one end of the piston rod 180 away from the piston chamber 190, and the diameter of the second protrusion 230 is greater than the notch width of the U-shaped groove 210. Specifically, the piston rod 180 can pass through the U-shaped groove 210, and the second protrusion 230 can be engaged with the side of the U-shaped groove 210, so that the piston rod 180 is engaged with the U-shaped groove 210 and does not fall off.
[0040] Optionally, the first protrusion 220 is provided with a first convex block 260 corresponding to the first through hole 240, the extension direction of the first convex block 260 is the same as the axial direction of the first through hole 240, and the diameter of the first convex block 260 is the same as the diameter of the first through hole 240. When the first convex block 260 is inserted into the first through hole 240, the connecting member 130 is rotated relative to the bracket 110.
[0041] In one embodiment of the present disclosure, the transmission member 140 includes a contact frame and a contact arm 290, the contact arm 290 is fixed on the contact frame, one end of the contact arm 290 is provided with a moving contact 150, the contact frame includes a first contact frame 270 and a second contact frame 280 which are perpendicular to each other, the first contact frame 270 is provided with a second protrusion 300 corresponding to the second through hole 250, the extension direction of the second protrusion 300 is the same as the axial direction of the second through hole 250, the diameter of the second protrusion 300 is the same as the diameter of the second through hole 250, and the side of the second contact frame 280 close to the first circuit board 100 contacts the connector 130. When the second protrusion 300 is inserted into the second through hole 250, the transmission member 140 can be rotated relative to the bracket 110.
[0042] In one embodiment of the present disclosure, the disconnect plug 001 further includes an elastic member 310, and a third protrusion 320 is further provided on the bracket 110. The third protrusion 320 is located on the side of the second through hole 250 close to the first circuit board 100. One end of the elastic member 310 is connected to the third protrusion 320, and the other end is connected to the first contact frame 270. Specifically, when the pin 170 is inserted into the socket, the coil 200 is energized, thereby generating magnetic force. Since the piston rod 180 is a magnetic material, the piston rod 180 moves in the direction of the coil 200, driving the connecting member 130 and the transmission member 140 to rotate. Since one end of the elastic member 310 is fixed and the other end is connected to the first contact frame 270 of the transmission member 140, the elastic member 310 is bent to store elastic potential energy. When leakage current is generated in the electrical circuit, the coil 200 loses power, the coil 200 loses magnetic attraction, and the piston rod 180 stops moving in the direction of the coil 200. At this time, the elastic member 310 releases its elastic potential energy, driving the transmission member 140 to move in the opposite direction to disconnect the moving contact 150 from the static contact 160, thereby disconnecting the electrical connection between the pin 170 and the socket, thereby disconnecting the electrical circuit and preventing leakage current from affecting the personal safety of the user.
[0043] Optionally, the elastic member 310 is a spring, and the length extension direction of the spring is the same as the length extension direction of the first contact frame 270. It can be understood that the spring is vertically arranged and is not in a compressed or extended state.
[0044] The present disclosure also provides a circuit breaker, such as Figure 3 As shown, the circuit breaker includes a base 330, a cover 340 and the above-mentioned circuit breaker plug 001. The base 330 and the cover 340 are detachably matched. When the base 330 and the cover 340 are closed, there is a receiving cavity. The circuit breaker plug 001 is located in the receiving cavity, and the pins 170 of the circuit breaker plug 001 are exposed on the end surface of the base 330.
[0045] It should be understood that the present disclosure does not limit its application to the detailed structure and arrangement of the components proposed in this specification. The circuit breaker plug 001 and the circuit breaker of the present disclosure can have other embodiments and can be implemented and executed in a variety of ways. The aforementioned deformation forms and modified forms fall within the scope of the present disclosure. It should be understood that the present disclosure disclosed and defined in this specification extends to all alternative combinations of two or more individual features mentioned or evident in the text and / or the drawings. All these different combinations constitute multiple alternative aspects of the present disclosure. The embodiments of the circuit breaker plug 001 and the circuit breaker of this specification illustrate the best known methods for implementing the present disclosure and will enable those skilled in the art to utilize the present disclosure.
Claims
1. A disconnect plug, characterized in that: include: a first circuit board; A circuit breaker assembly is located on the first circuit board and includes a bracket, a telescopic member, a connecting member and a transmission member, wherein the bracket is located on the first circuit board, the connecting member is rotatably connected to the bracket, the connecting member is located between the telescopic member and the transmission member, one end of the connecting member is engaged with the telescopic member, the other end of the connecting member is in contact with the end surface of the transmission member, the transmission member is rotatably connected to the bracket, and a moving contact is also provided on the transmission member; A second circuit board is located on a side of the bracket away from the first circuit board, and a static contact corresponding to the moving contact is provided on a side of the second circuit board close to the first circuit board; The pin is located at a side of the second circuit board away from the first circuit board.
2. The disconnect plug according to claim 1, characterized in that: The bracket is provided with a first through hole and a second through hole, the second through hole is located on a side of the first through hole away from the first circuit board, the connecting member is rotatably connected to the bracket through the first through hole, and the transmission member is rotatably connected to the bracket through the second through hole.
3. The disconnect plug according to claim 2, characterized in that: The telescopic member comprises a piston rod and a piston cavity which is slidably matched with the piston rod.
4. The disconnect plug according to claim 3, characterized in that: The piston rod is made of metal, and a coil is arranged in the piston cavity.
5. The disconnect plug according to claim 3, characterized in that: The connecting member includes a U-shaped groove and a first protrusion arranged at one end of the U-shaped groove, and a second protrusion is arranged at the end of the piston rod away from the piston cavity, and the diameter of the second protrusion is greater than the notch width of the U-shaped groove.
6. The disconnect plug according to claim 5, characterized in that: The first protrusion is provided with a first convex block corresponding to the first through hole, the extension direction of the first convex block is the same as the axial direction of the first through hole, and the diameter of the first convex block is the same as the diameter of the first through hole.
7. The disconnect plug according to claim 2, characterized in that: The transmission member includes a contact frame and a contact arm, wherein the contact arm is fixed on the contact frame, and a moving contact is arranged at one end of the contact arm. The contact frame includes a first contact frame and a second contact frame which are perpendicular to each other, and the first contact frame is provided with a second protrusion corresponding to the second through hole, and an extension direction of the second protrusion is the same as an axial direction of the second through hole, and a diameter of the second protrusion is the same as a diameter of the second through hole, and a side of the second contact frame close to the first circuit board contacts the connecting member.
8. The disconnect plug according to claim 7, characterized in that: The disconnect plug also includes an elastic member. A third protrusion is also provided on the bracket. The third protrusion is located on a side of the second through hole close to the first circuit board. One end of the elastic member is connected to the third protrusion, and the other end is connected to the first contact frame.
9. The disconnect plug according to claim 8, characterized in that: The elastic member is a spring, and a length extension direction of the spring is the same as a length extension direction of the first contact frame.
10. A circuit breaker, characterized in that: include: A base, a cover body, and a disconnect plug as described in any one of claims 1 to 9, wherein the base and the cover body are detachably matched, and when the base and the cover body are closed, there is a receiving cavity, the disconnect plug is located in the receiving cavity, and the pins of the disconnect plug are exposed at the end surface of the base.