Residual-current circuit breaker

Abstract

The invention provides a residual-current circuit breaker, and relates to the technical field of low-voltage apparatuses, and the residual-current circuit breaker comprises a pedestal and a button located on the pedestal, the button is provided with a residual-current switching assembly, the pedestal is provided with a power taking member and a first conductive column, the first conductive column is used for being electrically connected with a line of the residual-current circuit breaker, and the residual-current switching assembly is provided with a switching button. The switching button is controlled to drive the electric leakage switching assembly and the electricity taking piece to abut or release abutting, the electricity taking piece makes contact with the first conductive column to take electricity during abutting to achieve the electric leakage function, and the electricity taking piece is separated from the first conductive column to exit the electric leakage function when abutting is released. The on-off button is operated to realize use or quit of the electric leakage function, the electric leakage circuit breaker is put into the electric leakage function for standby use when the electric leakage function needs to be used, the electric leakage circuit breaker quits the electric leakage function when the electric leakage function is not needed, and the requirements of different occasions are met; the electric leakage function can be quickly switched between input and quit through the input and quit button, the response is quick, the performance is good, and the use requirements of users are met.

Description

Technical Field

[0001] The present application relates to the technical field of low-voltage electrical appliances, and in particular to a leakage circuit breaker. Background Art

[0002] As the name suggests, a leakage protection circuit breaker takes certain measures to provide protection when there is a leakage. It can automatically cut off the power supply of the equipment when the equipment leaks, the insulation is damaged, or there is a danger to people, to prevent the equipment and its lines from causing electric shock due to leakage, making the use of electrical appliances safer.

[0003] Existing leakage protection circuit breakers all have leakage protection function, but in some power consumption places where leakage protection is not needed temporarily, the leakage function needs to be temporarily turned off; and the existing leakage protection circuit breakers cannot turn off the leakage function, causing inconvenience to use. Summary of the invention

[0004] The purpose of the present application is to provide a leakage circuit breaker to address the deficiencies in the above-mentioned prior art, which can turn on or off the leakage function as needed to adapt to different scenario requirements.

[0005] To achieve the above purpose, the technical solution adopted in the embodiment of the present application is as follows:

[0006] According to one aspect of an embodiment of the present application, a leakage circuit breaker is provided, comprising a base and a button located on the base, wherein a leakage throw-in assembly is arranged on the button, a power supply member and a first conductive column are arranged on the base, the first conductive column is used to be electrically connected to the line of the leakage circuit breaker, and a throw-in button is arranged on the leakage throw-in assembly, and the throw-in button is operated to drive the leakage throw-in assembly and the power supply member to abut or release the abutment, when abutting, the power supply member and the first conductive column contact to draw power to realize the leakage function, and when releasing the abutment, the power supply member and the first conductive column are separated to exit the leakage function.

[0007] Optionally, the leakage current throw-in / out assembly includes a stopper sleeved on the rotating shaft on the button, and a throw-in / out slider in a state of abutment with the stopper, and the throw-in / out button is arranged on the throw-in / out slider; the throw-in / out button is manipulated to translate so that the throw-in / out slider approaches the stopper for abutment, or moves away from the stopper to release the abutment.

[0008] Optionally, a first guide protrusion is formed at the end of the stopper, and a second guide protrusion is formed on the insertion and withdrawal slider, and through the abutment between the first arc surface of the first guide protrusion and the second arc surface of the second guide protrusion, the insertion and withdrawal slider drives the stopper to rotate and abut against the power extraction member.

[0009] Optionally, a first limiting block is formed on the stopper, and a second limiting block is formed on the throwing and retracting slider, and the movement of the throwing and retracting slider is limited by the abutment of a first limiting surface of the first limiting block and a second limiting surface of the second limiting block.

[0010] Optionally, a handle assembly is further provided in the base for connecting with the operating mechanism, and an indicator is also sleeved on the rotating shaft. The indicator and the handle assembly are linked, and the indicator has an indicating surface for indicating the opening and closing status of the leakage circuit breaker.

[0011] Optionally, the handle assembly includes an inner handle placed in the base and a button located on the base connected to the inner handle, and the inner handle and the operating mechanism are linked; a first boss is formed on the inner handle, and a second boss is formed on the indicator member, and the first boss and the second boss are abutted against each other so that the inner handle drives the indicator member to rotate to display the closing status.

[0012] Optionally, a torsion spring is also sleeved on the rotating shaft, and the torsion spring is located between the stopper and the indicator. The two ends of the torsion spring are respectively connected to the stopper and the indicator, so as to respectively drive the stopper to reset to separate from the power-taking component and exit the leakage function, and drive the indicator to reset to display the disconnecting state.

[0013] Optionally, the ejection / rejection button and the indicating surface of the indicating member are displayed through the same window on the base.

[0014] Optionally, the power extraction member is a power extraction shrapnel or a power extraction spring, and the leakage circuit breaker further includes a second conductive column, one end of the power extraction member contacts the second conductive column, and the other end contacts or is separated from the first conductive column.

[0015] Optionally, a convex column is provided in the base, and the power extraction component is sleeved on the convex column.

[0016] Optionally, a slot is provided in the base, and the power extraction component is located in the slot. Optionally, a portion of the power extraction component located between the second conductive column and the first conductive column is placed in the slot.

[0017] The beneficial effects of this application include:

[0018] The present application provides a leakage circuit breaker, including a base and a button on the base, a leakage throw-in assembly is arranged on the button, a power-collecting member and a first conductive column are arranged on the base, the first conductive column is used to be electrically connected to the line of the leakage circuit breaker, and a throw-in button is arranged on the leakage throw-in assembly. By manipulating the throw-in button, the leakage throw-in assembly and the power-collecting member are driven to abut or release the abutment. When abutting, the power-collecting member and the first conductive column are in contact to take power to realize the leakage function, and when releasing the abutment, the power-collecting member and the first conductive column are separated to exit the leakage function. Manipulating the throw-in button realizes the activation or exit of the leakage function. When the leakage function needs to be used, the leakage circuit breaker is activated to be ready for use. When the leakage function is not needed, the leakage circuit breaker is exited from the leakage function, which meets the needs of different occasions. The throw-in button can quickly switch between activation or exit of the leakage function, with fast response and good performance, meeting the needs of users.

[0019] In addition, the leakage current throw-in / out component is arranged on the button, which can save the internal space of the leakage circuit breaker, facilitate the layout of other functions of the leakage circuit breaker, and improve the space utilization rate of the leakage circuit breaker; the leakage current throw-in / out component is arranged on the button and can be assembled into a complete independent component (assembly), which can be produced, transported and stored separately during the production process; the two are assembled together and can also ensure the movement stability of the parts assembly, and the various parts are tightly connected together to ensure the stability of the movement of the entire leakage circuit breaker, such as shaking, loosening and other problems; the leakage current throw-in / out component is arranged on the button to avoid the movement relationship between the leakage current throw-in / out component and the base directly, avoid mutual friction and sensitivity of dimensional functions, and ensure smooth and stable movement of parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of the partial appearance structure of a leakage circuit breaker provided in an embodiment of the present application;

[0022] Figure 2 One of the partial structural schematic diagrams of a leakage circuit breaker provided in an embodiment of the present application;

[0023] Figure 3 A second partial structural schematic diagram of a leakage circuit breaker provided in an embodiment of the present application;

[0024] Figure 4 A third schematic diagram of a partial structure of a leakage circuit breaker provided in an embodiment of the present application;

[0025] Figure 5 A schematic diagram of a stopper structure of a leakage circuit breaker provided in an embodiment of the present application;

[0026] Figure 6 A schematic diagram of the structure of a throw-in and retractable slider of a leakage circuit breaker provided in an embodiment of the present application;

[0027] Figure 7 A fourth partial structural diagram of a leakage circuit breaker provided in an embodiment of the present application;

[0028] Figure 8 A schematic diagram of a partial explosion structure of a leakage circuit breaker provided in an embodiment of the present application.

[0029] Icons: 10-base; 10a-injection and withdrawal button; 10b-button; 101-rotating shaft; 102-slot; 11-injection and withdrawal assembly; 111-stopper; 1110-first guide protrusion; 1111-first limiting block; 111a-first arc surface; 111b-first limiting surface; 111d-limiting boss; 112-injection and withdrawal slider; 1120-second guide protrusion; 1121-second limiting block; 112a-second arc surface; 112b-second limiting surface; 113-torsion spring; 12-indicator; 120-indicator surface; 121-second boss; 20-inner handle; 201-first boss; 21-first connecting rod; 22-second connecting rod; 30-operating mechanism; 40-power-collecting member; 51-second conductive column; 52-first conductive column. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. It should be noted that, in the absence of conflict, the various features in the embodiments of the present application can be combined with each other, and the combined embodiments are still within the scope of protection of the present application.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0034] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] In some electrical places where leakage protection is not needed temporarily, if the user chooses a leakage protection switch, when the leakage function needs to be turned off, a leakage protection activation and deactivation function will need to be added, such as in medical equipment undergoing surgery, fire scenes where rescue is being carried out, fire-fighting facilities, etc.

[0037] The present application embodiment provides a leakage circuit breaker, which can turn on or off the leakage function as needed to meet the use requirements of different scenarios. Figure 1 to Figure 3 As shown, an embodiment of the present application provides a leakage circuit breaker, including a base 10 and a button 10b located on the base 10, a leakage throw-in assembly 11 is arranged on the button 10b, a power supply member 40 and a first conductive column 52 are arranged on the base 10, the first conductive column 52 is used to be electrically connected to the line of the leakage circuit breaker, and a throw-in button 10a is arranged on the leakage throw-in assembly 11. By manipulating the throw-in button 10a, the leakage throw-in assembly 11 and the power supply member 40 are driven to abut or release the abutment. When abutting, the power supply member 40 and the first conductive column 52 are in contact to take power to realize the leakage function. When releasing the abutment, the power supply member 40 and the first conductive column 52 are separated to exit the leakage function.

[0038] A throw-in button 10a is provided on the leakage current throw-in component 11. By operating the throw-in button 10a, the leakage current throw-in component 11 and the power extraction component 40 are driven to abut or release the abutment. When abutting, the power extraction component 40 and the first conductive column 52 are in contact to extract power to realize the leakage current function. When releasing the abutment, the power extraction component 40 and the first conductive column 52 are separated to exit the leakage current function.

[0039] The first conductive column 52 is connected to the line of the leakage circuit breaker, and the leakage throw-in assembly 11 is connected or separated from the first conductive column 52 through the power-taking component 40. When the leakage throw-in assembly 11 drives the power-taking component 40 to abut against the first conductive column 52, the leakage function of the leakage circuit breaker can be put into use; when the leakage throw-in assembly 11 drives the power-taking component 40 to separate from the first conductive column 52, the leakage function of the leakage circuit breaker is withdrawn and cannot be used.

[0040] Furthermore, if Figure 2 As shown, a throw button 10a is provided at one end of the leakage current throw-in / out assembly 11. By operating the throw button 10a, the leakage current throw-in / out assembly 11 is driven to operate, so that the other end of the leakage current throw-in / out assembly 11 drives the power extraction member 40 and the first conductive column 52 to abut or separate.

[0041] Therefore, in the leakage circuit breaker provided by the embodiment of the present application, a button 10b is arranged on the base 10, a leakage throw-in assembly 11 is arranged on the button 10b, and a power-collecting member 40 and a first conductive column 52 are also arranged on the base 10, wherein the first conductive column 52 is used to be electrically connected to the line of the leakage circuit breaker so as to connect the leakage function through the first conductive column 52; one end of the leakage throw-in assembly 11 and the power-collecting member 40 are in abutment state so that the power-collecting member 40 and the first conductive column 52 are in contact with each other to realize the leakage function; one end of the leakage throw-in assembly 11 is also in a state of releasing the abutment with the power-collecting member 40 so that the power-collecting member 40 and the first conductive column 52 are in contact with each other to realize the leakage function. The first conductive column 52 is separated, and the leakage function is then exited; a throw-in / out button 10a is provided at the other end of the leakage throw-in / out component 11, and the throw-in / out button 10a is operated to make the leakage throw-in / out component 11 and the power taking component 40 abut or release the abutment, thereby realizing the putting into use or exiting of the leakage function, so that when the leakage function is needed, the leakage circuit breaker is put into the leakage function for use, and when the leakage function is not needed, the leakage circuit breaker is exited from the leakage function, so as to meet the needs of different occasions; the throw-in / out button 10a can be used to quickly switch between the putting into or exiting of the leakage function, with fast response and good performance, meeting the needs of users.

[0042] In addition, the leakage current throw-in / out component 11 is arranged on the button 10b, which can save the internal space of the leakage circuit breaker, facilitate the layout of other functions of the leakage circuit breaker, and improve the space utilization rate of the leakage circuit breaker; the leakage current throw-in / out component 11 is arranged on the button 10b and can be assembled into a complete independent component (assembly), which can be produced, transported and stored separately during the production process; the two are assembled together and can also ensure the movement stability of the parts assembly. The parts are tightly connected together to ensure the stability of the movement of the entire leakage circuit breaker, such as shaking, loosening and other problems; the leakage current throw-in / out component 11 is arranged on the button 10b to avoid the movement relationship between the leakage current throw-in / out component 11 and the base 10 directly, avoid mutual friction and sensitivity of dimensional functions, and ensure smooth and stable movement of parts.

[0043] In one embodiment, Figure 4 As shown, the leakage current throw-in assembly 11 includes a stopper 111 sleeved on the rotating shaft 101 on the button 10b, and a throw-in slider 112 in abutment state with the stopper 111, and the throw-in button 10a is arranged on the throw-in slider 112; by manipulating the throw-in button 10a to translate, the throw-in slider 112 is moved close to the stopper 111 to abut, or moved away from the stopper 111 to release the abutment.

[0044] The button 10b is provided with a rotating shaft 101, and a stopper 111 is sleeved on the rotating shaft 101 to rotate along the rotating shaft 101; it also includes a throw-in / out slider 112 matched with the stopper 111, and a throw-in / out button 10a is provided on the top of the throw-in / out slider 112, and the throw-in / out slider 112 can be driven to approach or move away from the stopper 111 by manipulating the throw-in / out button 10a; when the throw-in / out slider 112 approaches the stopper 111 and abuts against the stopper 111, the stopper 111 can be driven to rotate, so that the other end of the stopper 111 drives the power-collecting component 40 to contact the first conductive column 52 to collect electricity; when the throw-in / out slider 112 moves away from the stopper 111, the other end of the stopper 111 is separated from the power-collecting component 40, and then the power-collecting component 40 is separated from the first conductive column 52.

[0045] Furthermore, a first guide protrusion 1110 is formed at the end of the stopper 111, and a second guide protrusion 1120 is formed on the retractable slider 112. Through the abutment between the first guide protrusion 1110 and the second guide protrusion 1120, the retractable slider 112 drives the stopper 111 to rotate and abut against the power extraction member 40.

[0046] like Figure 5 As shown, a first guide protrusion 1110 is formed at one end of the stopper 111, and a first arc surface 111a is formed on the first guide protrusion 1110; similarly, Figure 6As shown, a second guide protrusion 1120 is formed at a corresponding position of the throw-in / out slider 112, and the second guide protrusion 1120 forms a second arc surface 112a; when the throw-in / out slider 112 approaches the stopper 111, the second arc surface 112a matches and abuts against the first arc surface 111a, and drives the stopper 111 to rotate counterclockwise. At this time, the other end of the stopper 111 approaches the power-collecting component 40 until it abuts against the power-collecting component 40, so as to drive the power-collecting component 40 to contact the first conductive column 52, thereby realizing the connection of the leakage function through the first conductive column 52, so that the leakage function is put into use.

[0047] When the retractable slider 112 is away from the stopper 111, under the action of the torsion spring 113, the stopper 111 reverses clockwise and separates from the power extraction component 40, and then the power extraction component 40 separates from the first conductive column 52 under the action of the elastic force, and the leakage circuit is disconnected, thereby realizing the exit leakage function.

[0048] On this basis, a first limiting block 1111 is formed on the stopper 111, and a second limiting block 1121 is formed on the ejection slider 112. The first limiting block 1111 and the second limiting block 1121 are abutted against each other to limit the movement of the ejection slider 112.

[0049] like Figure 7 As shown, the first limit block 1111 on the stopper 111 is located on one side of the first arc surface 111a, and the second limit block 1121 on the throw-in / out slide block 112 is located on one side of the second arc surface 112a. When the throw-in / out slide block 112 drives the first arc surface 111a through the second arc surface 112a to rotate the stopper 111, after rotating to a certain position, the first limit surface 111b at the end of the first limit block 1111 and the second limit surface 112b at the end of the second limit block 1121 abut against each other, and the first limit block 1111 blocks the second limit block 1121 from continuing to move, thereby limiting the throw-in / out slide block 112, and the throw-in / out slide block 112 will no longer be able to approach the stopper 111. At this time, the stopper 111 also stops rotating, and the stopper 111 and the throw-in / out slide block 112 remain in a locked state.

[0050] It should be noted that the locking force of the stopper 111 and the ejection and retraction slider 112 must be greater than the torsion of the torsion spring 113 in order to keep the two in a locked state. Otherwise, once the torsion of the torsion spring 113 exceeds the locking force, the two cannot remain in a locked state, and the torsion spring 113 will drive the stopper 111 to reverse.

[0051] On the other hand, the present application also integrates an indicator 12 for displaying the opening and closing status into the leakage circuit breaker assembly 11 to save space; specifically, a handle assembly is also provided in the base 10 for connecting with the operating mechanism 30, and an indicator 12 is also sleeved on the rotating shaft 101. The indicator 12 and the handle assembly are linked, and the indicator 12 has an indicating surface 120 for indicating the opening and closing status of the leakage circuit breaker.

[0052] The operating mechanism 30 can be driven by the operating handle assembly to realize opening and closing, and the handle assembly and the indicator 12 are linked to follow the opening and closing actions of the handle assembly and display the opening and closing status through the indicator surface 120. At the same time, the indicator 12 and the stopper 111 are sleeved on the rotating shaft 101 together, so that the leakage throw-in function and the opening and closing indication function are integrated, which effectively saves the space inside the leakage circuit breaker.

[0053] In one embodiment, the handle assembly includes an inner handle 20 placed in the base 10 and a button 10b located on the base 10 connected to the inner handle 20, and the inner handle 20 and the operating mechanism 30 are linked; a first boss 201 is formed on the inner handle 20, and a second boss 121 is formed on the indicator 12. Through the abutment between the first boss 201 and the second boss 121, the inner handle 20 drives the indicator 12 to rotate to display the closed state.

[0054] The button 10b is placed on the base 10 for operation. The button 10b is connected to the inner handle 20 via the first connecting rod 21, and the inner handle 20 is connected to the operating mechanism 30 via the second connecting rod 22, so as to realize the opening and closing functions by pressing the button 10b.

[0055] At the same time, a first boss 201 is formed on the inner handle 20, and a second boss 121 is formed at the corresponding position of the indicator 12. When the inner handle 20 is rotated to open or close the switch, the second boss 121 is driven by the first boss 201 to rotate the indicator 12, and then different areas of the indicating surface 120 are displayed in the corresponding windows on the base 10 to show the opening and closing status.

[0056] For example, a red area and a green area are formed on the indicating surface 120. When the switch is closed, the first boss 201 on the inner handle 20 presses the second boss 121 of the indicating member 12, the inner handle 20 rotates counterclockwise, and the indicating member 12 rotates clockwise, and the indicating surface 120 rotates and switches to expose the red area to display the closed state; in the open state, due to the torsion spring 113, the indicating member 12 is forced to rotate counterclockwise, and the indicating surface 120 rotates to the green area to display the green open state.

[0057] It can be seen that the torsion spring 113 provides a reset force for the stopper 111 and the indicator 12; specifically, a torsion spring 113 is also sleeved on the rotating shaft 101, and the torsion spring 113 is located between the stopper 111 and the indicator 12, and the two ends of the torsion spring 113 are respectively connected to the stopper 111 and the indicator 12, so as to respectively drive the stopper 111 to reset to separate from the power taking component 40 and exit the leakage function, and drive the indicator 12 to reset to display the disconnecting state.

[0058] As mentioned above, by operating the throw-in / out button 10a, the throw-in / out slider 112 is brought close to the stopper 111, driving the stopper 111 to rotate, thereby driving the power extraction component 40 and the first conductive column 52 to contact and extract power, thereby realizing the use of the leakage function; in this process, the torsion spring 113 accumulates torque through the rotation of the stopper 111, and the torque of the torsion spring 113 acts on the stopper 111 and the indicator 12; when the torque acts on the stopper 111, after the throw-in / out slider 112 moves away from the stopper 111, the torque drives the stopper 111 to reverse, and the power extraction component 40 and the first conductive column 52 are separated, and the leakage function is exited.

[0059] When the torque acts on the indicator 12, if it is in the closed state at this time, the inner handle 20 presses against the second boss 121 of the indicator 12 through the first boss 201, and the indicator 12 cannot be reversed and will continue to remain in the closed indication state; once the opening operation is performed, the inner handle 20 and the indicator 12 are released from the abutment, and the indicator 12 is reset under the action of the torque, and drives the indicator 12 to rotate to the open indication state.

[0060] In one embodiment, Figure 8 As shown, a limiting boss 111d is also provided on the stopper 111. When the torsion spring 113 is sleeved on the rotating shaft 101, the limiting boss 111d and the outer periphery of the torsion spring 113 are abutted to limit and fix the torsion spring 113.

[0061] Furthermore, when the opening and closing indication and the throwing and un throwing indication are integrated into one, the throwing and un throwing button 10 a and the indication surface 120 of the indicator 12 are indicated through the same window on the base 10 .

[0062] In terms of functional experience, the on / off status and indication are displayed in the same window for easy identification by users, and it is convenient to observe the status of the leakage circuit breaker and adjust the on / off status of the leakage circuit breaker at the same time; in terms of appearance, the front of the leakage circuit breaker is more concise, complete and beautiful.

[0063] The prior art separates the insertion and withdrawal and indication into two windows, and the space occupied by the corresponding structure is wasted, and the space utilization rate will be greatly reduced; on the other hand, the protection capability of the circuit breaker will be reduced, and dust and the like will enter the circuit breaker more easily, affecting the normal use of the circuit breaker.

[0064] It is the best solution to display the ejection, withdrawal and indication through the same window. It is also possible to refer to the prior art to display the ejection, withdrawal and indication through different windows, for example, by adding a partition between the ejection, withdrawal and indication button 10a and the indication member 12.

[0065] The throw-in / out button 10a is operated to engage or disengage the leakage function. The throw-in / out button 10a will be located at different positions on the base 10 for indication; the throw-in / out button 10a and the indication surface 120 are displayed through the same window, and the throw-in / out state and the opening / closing state can be indicated at the same time.

[0066] The power extraction member 40 has an elastic function and can be reset through the elastic function. After reset, the power extraction member 40 and the first conductive column 52 are separated.

[0067] In one embodiment, the power extraction component 40 is a power extraction spring or a power extraction spring, and the leakage circuit breaker also includes a second conductive column 51. One end of the power extraction component 40 contacts the second conductive column 51, and the other end contacts the first conductive column 52 to extract power or separate to exit the leakage function.

[0068] The power taking component 40 takes power through two contact points. One end of the power taking component 40 is used to contact the second conductive column 51 to take power, and the other end is used to contact the first conductive column 52 to take power, so as to achieve reliability of power taking.

[0069] Furthermore, a slot 102 is provided in the base 10, and the power extraction member 40 is located in the slot 102. For example, the portion of the power extraction member 40 located between the second conductive column 51 and the first conductive column 52 is placed in the slot 102. The portion of the power extraction member 40 is located in the slot 102, so that the power extraction member 40 forms a bent shape; one end of the power extraction member 40 is half-surrounded on the second conductive column 51, and the other end is in contact with the outer periphery of the first conductive column 52.

[0070] Alternatively, a convex column is provided in the base 10 , and the power taking component 40 is sleeved on the convex column to limit the position.

[0071] In summary, the leakage circuit breaker provided in the embodiment of the present application is provided with a PCB circuit board in the base 10, the power supply conduction position of the leakage is set at the first conductive column 52, one end of the power extraction spring is conductively connected with the second conductive column 51, and the power extraction spring is placed in the card slot 102 of the base 10; when the leakage function is needed, it is switched to the "throw" function state, at this time the stopper 111 is locked, and the throw-in / out button 10a is operated to act on the stopper 111, and the stopper 111 acts on the power extraction spring, so that the power extraction spring is connected to the first conductive column 52 during the closing process. The conductive column 52 contacts, the leakage PCB board is turned on, and a leakage circuit breaker with a leakage function is realized; when the throw-in / out slider 112 is moved to the other side of the leakage circuit breaker, it is switched to the "out" state, indicating that the leakage function of the leakage circuit breaker is exited. At this time, when the leakage circuit breaker is closed, the stopper 111 will not be driven to rotate counterclockwise, but the torsion spring 113 will drive the stopper 111 to rotate counterclockwise, and the conduction function of the power-taking spring will be lost; when the circuit breaker is opened, the torsion spring 113 continues to act, and the stopper 111 will be further away from the power-taking spring, and the leakage function is exited.

[0072] In addition, a guide limit area is formed between the throw-in / out slider 112 and the stopper 111. When the throw-in / out slider 112 continues to slide toward one side close to the stopper 111, the stopper 111 rotates counterclockwise through the limit setting of the first arc surface 111a and the second arc surface 112a, compressing the torsion spring 113. The interaction force of the guide limit area is relatively greater than the torsion force of the torsion spring 113 at this time, otherwise the locking state cannot be maintained. Push the throw-in / out slider 112. When the throw-in / out slider 112 continues to slide away from the stopper 111, the guide limit area between the stopper 111 and the throw-in / out slider 112 is partially separated. After the limit is released, the stopper 111 rotates clockwise under the reaction force of the torsion spring 113, and the "throw" function is converted into the "retract" function, and the leakage function exits the leakage circuit breaker.

[0073] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A leakage circuit breaker, characterized in that: The invention comprises a base (10) and a button (10b) located on the base (10); a leakage current throw-in / out assembly (11) is arranged on the button (10b); a power supply component (40) and a first conductive column (52) are arranged on the base (10); the first conductive column (52) is used to be electrically connected to the line of the leakage current circuit breaker; a throw-in / out button (10a) is arranged on the leakage current throw-in / out assembly (11); the throw-in / out button (10a) is operated to drive the leakage current throw-in / out assembly (11) and the power supply component (40) to abut or release the abutment; when abutting, the power supply component (40) and the first conductive column (52) contact to extract power to realize the leakage current function; when releasing the abutment, the power supply component (40) and the first conductive column (52) are separated to exit the leakage current function.

2. The residual current circuit breaker according to claim 1, characterized in that: The leakage current insertion and withdrawal assembly (11) comprises a stopper (111) sleeved on a rotating shaft (101) on the button (10b), and an insertion and withdrawal slider (112) in a state of abutment with the stopper (111); the insertion and withdrawal button (10a) is arranged on the insertion and withdrawal slider (112); the insertion and withdrawal button (10a) is manipulated to translate so that the insertion and withdrawal slider (112) approaches the stopper (111) for abutment, or moves away from the stopper (111) to release the abutment.

3. The residual current circuit breaker according to claim 2, characterized in that: A first guide protrusion (1110) is formed at the end of the stopper (111), and a second guide protrusion (1120) is formed on the insertion and withdrawal slide block (112); through the abutment between the first arc surface (111a) of the first guide protrusion (1110) and the second arc surface (112a) of the second guide protrusion (1120), the insertion and withdrawal slide block (112) drives the stopper (111) to rotate so as to abut against the power extraction member (40).

4. The residual current circuit breaker according to claim 3, characterized in that: A first limiting block (1111) is also formed on the stopper (111), and a second limiting block (1121) is formed on the ejection and retraction slide block (112); the movement of the ejection and retraction slide block (112) is limited by the abutment of a first limiting surface (111b) of the first limiting block (1111) and a second limiting surface (112b) of the second limiting block (1121).

5. The residual current circuit breaker according to any one of claims 2 to 4, characterized in that: A handle assembly is also provided in the base (10) for connecting with the operating mechanism (30), and an indicator (12) is also sleeved on the rotating shaft (101). The indicator (12) and the handle assembly are linked, and the indicator (12) has an indicating surface (120) for indicating the opening and closing state of the leakage circuit breaker.

6. The residual current circuit breaker according to claim 5, characterized in that: The handle assembly comprises an inner handle (20) disposed in the base (10) and a button (10b) connected to the inner handle (20) and located on the base (10); the inner handle (20) and the operating mechanism (30) are linked; a first boss (201) is formed on the inner handle (20), and a second boss (121) is formed on the indicator (12); the inner handle (20) drives the indicator (12) to rotate to display a closed state through the abutment between the first boss (201) and the second boss (121).

7. The residual current circuit breaker according to claim 5, characterized in that: The rotating shaft (101) is also sleeved with a torsion spring (113), the torsion spring (113) being located between the stopper (111) and the indicator (12), and the two ends of the torsion spring (113) being respectively connected to the stopper (111) and the indicator (12), so as to respectively drive the stopper (111) to reset so as to separate from the power extraction component (40) and exit the leakage function, and drive the indicator (12) to reset so as to display the disconnected state.

8. The residual current circuit breaker according to claim 7, characterized in that: The ejection / rejection button (10a) and the indicating surface (120) of the indicating member (12) are displayed through the same window on the base (10).

9. The residual current circuit breaker according to claim 1, characterized in that: The power extraction member (40) is a power extraction spring or a power extraction spring, and the residual current circuit breaker further comprises a second conductive column (51), one end of the power extraction member (40) is in contact with the second conductive column (51), and the other end is in contact with or separated from the first conductive column (52).

10. The residual current circuit breaker according to claim 9, characterized in that: A convex column or a slot (102) is provided in the base (10), and the power extraction component (40) is sleeved on the convex column or located in the slot (102).

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