CN218456049U - Electric leakage test module and circuit breaker - Google Patents

Abstract

The utility model provides an electric leakage test module, includes electric leakage test loop and follows the circuit board that the electric current was got to the major loop, electric leakage test loop includes test button, first elastic component and second elastic component, first elastic component forms the breakpoint in electric leakage test loop with the cooperation of second elastic component, and press the test button and make first elastic component take place elastic deformation and contact with the second elastic component, electric leakage test loop still includes the wiring board, the second elastic component is connected with wiring board and circuit board, the terminal is connected with the major loop as the end of getting jointly of electric leakage test loop and circuit board to the wiring board. A circuit breaker comprises a shell and at least one circuit breaker pole arranged in the shell, and further comprises an electric leakage testing module. The wiring board is used as a power taking end of the circuit board and the electric leakage test loop, wherein the second elastic piece forms a breakpoint and connects the circuit board and the wiring board together, the using amount of wires is reduced, and the wiring board has the advantages of simple structure, high reliability and small occupied space.

Description

Electric leakage test module and circuit breaker

Technical Field

The invention relates to the field of low-voltage electrical appliances, in particular to an electric leakage testing module and a circuit breaker.

Background

The low-voltage circuit breaker can be used for distributing electric energy and protecting overload and short circuit of lines and power supply equipment, and can also be used for infrequent line switching and infrequent motor starting. With the continuous development of the internet of things technology and the artificial intelligence technology, the miniaturization and modularization of the circuit breaker have become a trend.

At present, low voltage circuit breaker has earth leakage protection function and electric leakage test function usually, the user is in the use, regularly press the test button and can detect whether normal electric leakage function, wherein, electric leakage test circuit has one or more breakpoint usually, its breakpoint is connected through the wire and is got the electricity, also get the electricity through the wire connection with electric leakage test circuit complex circuit board, so, electric leakage test circuit and circuit board get the electricity wire too much, it is great in the inside occupation space of circuit breaker, be unfavorable for the miniaturized design of circuit breaker.

SUMMERY OF THE UTILITY MODEL

The invention aims to overcome the defects of the prior art and provides an electric leakage test module which is simple in structure and small in occupied space and a circuit breaker applying the electric leakage test module.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides an electric leakage test module, includes electric leakage test circuit and gets the circuit board of electricity from the major loop, electric leakage test circuit includes test button, first elastic component and second elastic component, first elastic component forms the breakpoint in electric leakage test circuit with the cooperation of second elastic component, presses test button and makes first elastic component take place elastic deformation and contact with the second elastic component, electric leakage test circuit still includes the wiring board, the second elastic component is connected with wiring board and circuit board, the wiring board is as the common end of getting electricity and major loop connection of electric leakage test circuit and circuit board.

Preferably, the second end of the second elastic element is elastically abutted to the wiring board, the first end of the second elastic element is inserted into the circuit board, and the middle part of the second elastic element is matched with the first elastic element to form a breakpoint of the leakage test loop.

Preferably, the wiring board is provided with a connecting groove, and the second end of the second elastic element is elastically limited in the connecting groove and elastically abutted against the wiring board.

Preferably, the second elastic component is arranged between the wiring board and the circuit board, the surface of the wiring board and the surface of the circuit board are arranged in a crossed manner, the second end of the second elastic component extends into the connecting groove along the direction perpendicular to the wiring board and abuts against the side wall of the connecting groove, and the middle of the second elastic component extends to the position between the circuit board and the first elastic component along the direction perpendicular to the surface of the wiring board.

Preferably, the first end of the terminal block is used for being connected with a terminal block of the circuit breaker, and the second end of the terminal block is provided with a connecting groove.

Preferably, the connecting groove link up the wiring board face, and the opening of connecting groove inclines towards one side, and the blind end of connecting groove is the obtuse circle that the internal diameter is greater than the opening internal diameter.

Preferably, the first elastic part is located on one side of the second elastic part, the first end of the first elastic part is abutted to the test button, the first end of the first elastic part and the middle part of the second elastic part are spaced and opposite to form a breakpoint of the electric leakage test loop, and the second end of the first elastic part is electrically connected with the circuit board.

Preferably, first elastic component includes integrated into one piece's first inclined plane, second inclined plane and connection face, connect the face and connect between first inclined plane and second inclined plane, the middle part of connecting the face is equipped with fixed mounting portion, and the second inclined plane is held as the second of first elastic component and is passed through the wire and be connected with the circuit board, and first inclined plane is located the top of fixed boss, the middle part and the test button butt on first inclined plane, and the first end and the second elastic component cooperation that are regarded as first elastic component by the tip on first inclined plane form the breakpoint.

Preferably, the second elastic member comprises a first connecting arm, a second connecting arm, a first straight section, a second straight section, an L-shaped connecting section and a bending connecting section,

the first connecting arm is connected with the head end of the second connecting arm, the middle part of the first connecting arm is opposite to the middle part of the second connecting arm at intervals and matched with the first elastic piece to form a breakpoint, the head end of the first straight section is connected to the tail end of the first connecting arm along the direction perpendicular to the first connecting arm, the head end of the L-shaped connecting section is vertically connected to the tail end of the first straight section, the tail end of the L-shaped connecting section is located on one side far away from the second connecting arm, the plane where the first straight section and the L-shaped connecting section are located is perpendicular to the plane where the first connecting arm and the second connecting arm are located, and the tail end of the L-shaped connecting section is used as the first end of the second elastic piece to be plugged with the circuit board;

the second straight section is vertically connected to the tail end of the second connecting arm, the second straight section is parallel to the first straight section, the head end of the bending connecting section is connected to the tail end of the second straight section, the plane of the bending connecting section is parallel to the planes of the first connecting arm and the second connecting arm, and the tail end of the bending connecting section is used as the second end of the second elastic piece to be elastically abutted to the wiring board.

The invention also provides a circuit breaker, which comprises a shell, at least one circuit breaker pole arranged in the shell and the electric leakage test module.

The electric leakage test module and the circuit breaker using the electric leakage test module provided by the invention have the advantages that the wiring board is used as a power taking end of the circuit board and the electric leakage test loop, the second elastic piece forms a breakpoint and connects the circuit board and the wiring board together, the connecting wires of the electric leakage test loop and the circuit board and the main loop are reduced, and the electric leakage test module has the advantages of simple structure, high reliability and small occupied space.

In addition, the wiring board and the second elastic piece are in elastic abutting joint, wiring can be guaranteed, and assembly can be conducted respectively, particularly, the connecting groove is formed in the wiring board, the second end of the second elastic piece extends into the connecting groove and abuts against the connecting groove, and wiring stability is further guaranteed.

Drawings

Fig. 1 is a schematic structural diagram of a circuit breaker in the invention;

FIG. 2 is a schematic structural diagram of an L pole in the invention;

FIG. 3 is a schematic structural diagram of an N pole in the invention;

fig. 4 is a schematic structural diagram of the earth leakage protection module in the invention;

FIG. 5 is a schematic structural diagram of a leakage testing module according to the present invention;

FIG. 6 is a schematic view of the elastic contact between the wiring board and the second elastic member in the invention;

FIG. 7 is a schematic structural view of a second elastic member according to the present invention;

fig. 8 is a schematic structural diagram of the first elastic member in the invention.

Detailed Description

The following describes a specific embodiment of the electrical leakage testing module and the circuit breaker according to the present invention with reference to the embodiments shown in fig. 1 to 8. The electric leakage test module and the circuit breaker of the present invention are not limited to the description of the following embodiments.

The utility model provides an electric leakage test module, includes electric leakage test circuit and follows the circuit board 35 of electric taking from the major loop, electric leakage test circuit includes experimental button 33, first elastic component 31 and second elastic component 32, first elastic component 31 forms the breakpoint in electric leakage test circuit with the cooperation of second elastic component 32, presses experimental button 33 and makes first elastic component 31 take place elastic deformation and second elastic component 32 contact to the breakpoint in switch-on electric leakage test circuit, electric leakage test circuit still includes wiring board 34, second elastic component 32 is connected with wiring board 34 and circuit board 35, wiring board 34 is connected with the major loop as the common end of getting electric leakage test circuit and circuit board 35, and first elastic component 31 is connected with circuit board 35 and gets the electricity.

The leakage testing module, the leakage protection module 3 and the circuit breaker using the leakage testing module are provided by the invention, the wiring board 34 is used as a power taking end of the circuit board 35 and the leakage testing loop, wherein the second elastic piece 32 not only forms a breakpoint, but also connects the circuit board 35 and the wiring board 34 together, so that the connecting wires of the leakage testing loop, the circuit board 35 and the main loop are reduced, and the leakage testing module has the advantages of simple structure, high reliability and small occupied space.

In conjunction with fig. 1-8, an embodiment of a circuit breaker is provided, where the circuit breaker includes a housing, at least one circuit breaker pole 2 is disposed in the housing, preferably, the housing includes at least one mounting cavity, and each circuit breaker pole 2 is correspondingly assembled in one mounting cavity, and when a plurality of mounting cavities are disposed in the housing, the housing may include a plurality of partition plates fixedly disposed in the housing, and the mounting cavities are formed by intervals between two adjacent partition plates, or the housing includes an upper cover, a base, and partition plates assembled between the upper cover and the base, where the upper cover and one partition plate cover one mounting cavity, the base and another partition plate form another mounting cavity, and the other partition plates respectively form a plurality of independent mounting cavities in pairs, and the two adjacent mounting cavities are spliced together through the partition plates; or the shell is formed by splicing a plurality of independent unit shells, and each unit shell comprises an upper cover and a base which cover to form an installation cavity.

A phase main line is provided in each breaker pole 2, that is, an N phase main line or an L phase main line is provided in each breaker pole 2, each phase main line is connected between a pair of connection terminals 41, of course, it is also possible to provide an L phase main line and an N phase main line simultaneously in the same breaker pole 2, in this embodiment, two breaker poles 2 are taken as an example, only one phase main line is provided in each breaker pole 2, that is, one of the breaker poles 2 is provided with an L phase main line as an L pole 2L, the other breaker pole 2 is provided with an N phase main line as an N pole 2N, and the L phase main line and the N phase main line together form a main circuit of the breaker.

An earth leakage protection module 3 is assembled in a mounting cavity of the housing, as shown in fig. 1 and 4, preferably, the earth leakage protection module 3 is located in a mounting cavity adjacent to the L pole 2L, and a connection terminal 41 is arranged at one end of the mounting cavity where the earth leakage protection module 3 is located, that is, the connection terminals 41 corresponding to the L-phase main line and the N-phase main line are arranged in parallel at one end of the mounting cavity.

As shown in fig. 4 and 5, the leakage protection module 3 further includes a leakage detection circuit and a leakage tripping mechanism, the leakage tripping mechanism includes a release 36 driven by the leakage detection circuit, the leakage detection circuit includes a circuit board 35 and a transformer connected to the circuit board 35, the transformer is coupled to the L-phase main circuit and the N-phase main circuit to detect a leakage signal, when the leakage detection circuit detects a leakage fault, the ejector rod of the release 36 can be driven to move, after the ejector rod completes the movement, the ejector rod is driven to reset by a reset spring of the release 36, in fig. 4, the release 36 is horizontally disposed on the upper portion of the leakage protection module 3, a push plate 38 and an indicator 37 are correspondingly disposed on one side of the ejector rod of the release 36, an avoiding hole is disposed on a side wall of the installation cavity corresponding to the push plate 38, a linking portion of an adjacent breaker pole 2 passes through the avoiding hole to cooperate with the push plate 38, when the leakage fault occurs, the push plate 38 is triggered to rotate by the release 36, so that the linking portion drives a latch to rotate to trip the operating pole, and the indicator 37 operates to indicate leakage.

As shown in fig. 4 and 5, the leakage protection module 3 further includes a leakage testing module, the leakage testing module includes a circuit board 35 and a leakage testing loop, wherein the circuit board 35 and the leakage testing loop respectively take power from the main loop, that is, one end of the circuit board 35 and one end of the leakage testing loop are respectively connected to the L-phase main circuit, and the other end of the circuit board 35 and the other end of the leakage testing loop are connected to the N-phase main circuit, in this embodiment, the circuit board 35 also belongs to a leakage detecting circuit.

The leakage test loop comprises a test button 33, a first elastic piece 31 and a second elastic piece 32, a button groove 11 is formed in a shell, the button groove 11 is formed in the upper portion of a mounting cavity for assembling the leakage protection module 3, preferably, a fixing boss 12 is correspondingly arranged below the corresponding button groove 11, the test button 33 is assembled in the button groove 11 in a sliding mode, one end, extending into the shell, of the test button 33 is located above the fixing boss 12, the first elastic piece 31 and the second elastic piece 32 are located on two sides of the fixing boss 12 respectively, a breakpoint of the leakage test loop is formed by matching the first elastic piece 31 and the second elastic piece 32, in the drawing, the second end of the first elastic piece 31 extends to one side close to the second elastic piece 32 and abuts against the test button 33, the first elastic piece 31 deforms by pressing the test button 33, the first elastic piece 31 is driven by the test button 33 to contact with the second elastic piece 32, the breakpoint of the leakage test loop can be connected at the moment, leakage current is generated in the leakage test loop, and after a leakage signal is detected, a leakage tripping mechanism is driven by a circuit board 35 to complete a leakage test action.

The improvement of this application lies in, electric leakage test circuit still includes wiring board 34, the one end and the main loop of wiring board 34 are connected and are got the electricity, it is also to correspond L looks main line or N looks main line's binding post 41 in wiring board 34's one end and the earth leakage protection module 3 and be connected, wiring board 34's the other end passes through second elastic component 32 and is connected with circuit board 35, at this moment, wiring board 34 is as electric leakage test circuit and electric leakage detection circuit's the end of getting jointly to be connected with the main loop, first elastic component 31 is connected with circuit board 35, make electric leakage test circuit get the electricity from circuit board 35, so, can avoid electric leakage test circuit and electric leakage detection circuit to set up too much and get the electric wire, electric leakage test circuit has also been reduced, circuit board 35 and the main circuit connected wire, possess simple structure, the reliability is high and occupation space advantage few.

It should be noted that, in addition to a break point formed by the first elastic member 31 and the second elastic member 32, the leakage test circuit may also be provided with other break points that are not formed by the first elastic member 31 and the second elastic member 32, such as a second break point driven by a handle or an operating mechanism, and the like, which all belong to the protection scope of the present application. In addition, the first elastic member 31 may be electrically connected to the circuit board 35 directly or indirectly.

Furthermore, second end 322 of second elastic component 32 and the elasticity butt joint of wiring board 34, both can guarantee that the wiring also conveniently assembles, preferably, wiring board 34 is provided with spread groove 341, second end 322 of second elastic component 32 is spacing in spread groove 341 by elasticity, further guaranteed that the wiring is stable, first end 321 of second elastic component 32 pegs graft in circuit board 35, form the breakpoint of electric leakage test return circuit by the cooperation of the middle part of second elastic component 32 and first elastic component 31, the wiring operation of second elastic component 32 has been simplified.

Particularly, the second elastic element 32 is disposed between the wiring board 34 and the circuit board 35, the board surface of the wiring board 34 and the board surface of the circuit board 35 are disposed in a crossing manner, preferably, the board surface of the wiring board 32 and the board surface of the circuit board 35 are perpendicular to each other, the second end 322 of the second elastic element 32 extends into the connection groove 341 in a direction perpendicular to the wiring board 34 and abuts against a side wall of the connection groove 341, the middle part of the second elastic element 32 extends between the circuit board 35 and the first elastic element 31 in a direction perpendicular to the board surface of the wiring board 34, at this time, the middle part of the second elastic element 32 and the first elastic element 31 are respectively located on two sides of the fixed boss 12, preferably, the middle part of the first elastic element 31 is fixed on the fixed boss 12, the first end of the first elastic element 31 is located below the test button 33 and abuts against the test button 33, the first end of the first elastic element 31 and the middle part of the second elastic element 32 are spaced and opposed to form a breakpoint of the leakage test loop, and the second end of the first elastic element 31 is electrically connected to the circuit board 35, so that the first elastic element 31 and the second elastic element 32 are disposed along a gap inside the housing, thereby reducing a space occupied by the leakage test loop. It should be noted that, of course, the first elastic element 31 and the second elastic element 32 may be cooperatively disposed to form one or more breaking points, and this embodiment is only exemplified by the first elastic element 31 and the second elastic element 32 forming one breaking point.

A specific structure of the test button 33, the terminal block 34, the first elastic member 31, and the second elastic member 32 in the electrical leakage test circuit will be described with reference to fig. 1, 4 to 8.

As shown in fig. 1, 4, 5 and 8, the test button 33 includes a push head and a push rod, the push rod is slidably assembled in the button slot 11 of the housing, the push head is located outside the button slot 11, a stop plate is arranged at the joint of the push head and the push rod, a spring is arranged outside the push rod, two ends of the spring are respectively matched with the stop plate and the housing, the test button 33 is prevented from coming off from the edge of the button slot 11 by the stop plate being clamped at the edge of the button slot 11, the push rod extends above the first elastic member 31, a push inclined surface is arranged at the tail end of the push rod, the test button 33 is pressed, the push inclined surface is abutted against the second end of the first elastic member 31 to generate elastic deformation, and the breakpoint of the leakage test loop is connected.

As shown in fig. 4 to 6, the first end of the terminal plate 34 is used for being connected to the connection terminal 41 of the circuit breaker, the second end of the terminal plate 34 is provided with a connection groove 341 penetrating through the plate surface, and the connection groove 341 is elastically abutted to the second elastic member 32, so that the connection is ensured and the assembly is convenient, the connection between the second elastic member 32 and the connection groove 341 is simplified, the number of used connection wires is reduced, and meanwhile, the connection groove 341 limits the second end of the second elastic member 32, thereby ensuring the stable connection.

As shown in fig. 5, the middle portion of the wiring board 34 is bent so that the wiring board 34 forms a zigzag plate-shaped structure, that is, the wiring board 34 includes a first connection board, a second connection board and a third connection board which are connected in sequence, wherein the first connection board and the third connection board are arranged along a horizontal direction in the drawing, the second connection board is arranged along a vertical direction in the drawing, the second connection board can be regarded as the middle portion of the wiring board 34 is bent, wherein one end of the first connection board far away from the second connection board is connected with the terminal 41 of the circuit breaker as a first end of the wiring board 34, one end of the third connection board far away from the second connection board is used as a second end of the wiring board 34, and a connection groove 341 is formed on the third connection board.

The connecting groove 341 runs through the face of the wiring board 34, the opening of the connecting groove 341 inclines towards one side, the closed end of the connecting groove 341 is in the shape of an obtuse circle with the inner diameter larger than the inner diameter of the opening, the second end 322 of the second elastic element 32 vertically extends into the connecting groove 341 along the direction perpendicular to the face of the wiring board 34, the inclined connecting groove 341 enables the second elastic element 32 not to easily fall off, and the closed end of the obtuse circle can limit the abutting joint of the second end 322 of the second elastic element 32.

As shown in fig. 4, 5 and 8, the first elastic member 31 includes a first inclined surface 311, a second inclined surface 312 and a connection surface 313, which are integrally formed, the connection surface 313 is connected between the first inclined surface 311 and the second inclined surface 312, so that the first elastic member 31 forms a trapezoid structure, the trapezoid structure can be arranged along one side of the fixing boss 12, and a fixing installation portion is arranged in the middle of the connection surface 313, wherein the fixing installation portion is a groove structure or a boss structure, and correspondingly, the fixing boss 12 is provided with a boss structure or a groove structure matched with the fixing installation portion, so that the first elastic member 31 and the fixing boss 12 are fixed in a concave-convex matching manner, but other fixing manners are also possible; the second inclined surface 312 is used as the second end of the first elastic member 31 and is connected with the circuit board 35 through a conducting wire, the first inclined surface 311 is positioned above the fixed boss 12, the middle part of the first inclined surface 311 is abutted against the test button 33, and the end part of the first inclined surface 311 is used as the first end of the first elastic member 31 and is matched with the second elastic member 32 to form a breakpoint.

As shown in fig. 4-7, the second elastic member 32 includes a first connecting arm 32a, a second connecting arm 32b, a first straight section 32c, a second straight section 32d, an L-shaped connecting section and a bent connecting section, the first connecting arm 32a is connected to a head end of the second connecting arm 32b, a middle portion of the first connecting arm 32a is spaced from and opposite to a middle portion of the second connecting arm 32b and is matched with the first elastic member 31 to form a break point, the head end of the first straight section 32c is connected to a tail end of the first connecting arm 32a in a direction perpendicular to the first connecting arm 32a, the head end of the L-shaped connecting section is connected to a tail end of the first straight section 32c in a direction perpendicular to the first straight section 32c, the tail end of the L-shaped connecting section is parallel to the first straight section 32c and is located on a side away from the second connecting arm 32b, a plane where the first straight section 32c and the L-shaped connecting section 32c are located is perpendicular to a plane where the first connecting arm 32a second connecting arm 32a and the second connecting arm 32b are located, and the tail end of the L-shaped connecting section is used as a first end 321 of the second elastic member 32 and is plugged into a circuit board 35; the second straight section 32d is perpendicularly connected to the end of the second connecting arm 32b, the second straight section 32d is parallel to the first straight section 32c, the head end of the bent connecting section is connected to the end of the second straight section 32d, the plane of the bent connecting section is parallel to the planes of the first connecting arm 32a and the second connecting arm 32b, and the end of the bent connecting section is used as the second end 322 of the second elastic element 32 to be elastically abutted to the wiring board 34.

As shown in fig. 2 and 3, in this embodiment, the structures of the L pole 2L and the N pole 2N are similar, and the structure of the circuit breaker pole 2 is described by taking fig. 2 and 3 as an example, where the circuit breaker pole 2 includes a pair of connection terminals 41 connected to a main line of one phase, and a handle mechanism 42, an operating mechanism 43 and a contact mechanism 44 which are connected in a linkage manner in sequence, the pair of connection terminals 41 includes an incoming terminal and an outgoing terminal, the contact mechanism 44 includes a moving contact and a stationary contact which are matched with each other, the moving contact is connected with the operating mechanism 43 in a linkage manner, the stationary contact is fixedly mounted on a side opposite to the moving contact, the operating mechanism 43 is driven by manually operating the handle mechanism 42, and the moving contact is separated from or contacted with the stationary contact to implement on-off control of the main line in the circuit breaker pole 2. In addition, each circuit breaker pole 2 is further provided with an arc extinguishing system 45 and a short-circuit protection mechanism 46 and/or an overload protection mechanism 47 which are matched with the operating mechanism 43, the arc extinguishing system 45 is arranged on one side of the contact mechanism 44 in a matched mode and used for extinguishing electric arcs generated by the moving contact and the static contact in the opening and closing processes, and the short-circuit protection mechanism 46 or the overload protection mechanism 47 is respectively used for triggering the operating mechanism 43 to trip when a main circuit is in a short-circuit fault or an overload fault.

In this embodiment, a pair of connection terminals 41 are respectively disposed at two ends of the breaker poles 2, the incoming line terminals (outgoing line terminals) of two adjacent breaker poles 2 are located at the same end of the housing, the handle mechanism 42 is rotatably assembled on the upper portion of the housing, the operating mechanism 43 is disposed at one side of the handle mechanism 42, the handle mechanism 42 and the operating mechanism 43 are linked by a link, the movable contact is connected to the lower portion of the operating mechanism 43, the operating mechanism 43 and the handle mechanism 42 of two adjacent breaker poles 2 are linked and connected, respectively, the arc extinguishing chamber and the fixed contact of the arc extinguishing system 45 are fixed at the middle portion of the housing, wherein the fixed contact is opposite to the movable contact, the short-circuit protection mechanism 46 is disposed between the handle mechanism 42 and the arc extinguishing chamber, one end of the short-circuit protection mechanism 46 is opposite to the operating mechanism 43, the overload protection mechanism 47 and the short-circuit protection mechanism 46 are respectively disposed at two sides of the operating mechanism 43, one end of the overload protection mechanism 47 is matched with the operating mechanism 43, as shown in fig. 3, the overload protection mechanism 47 is not disposed in the N pole 2N.

In this embodiment, the operating mechanism 43 of each circuit breaker pole 2 includes a lever rotatably mounted in the housing, the lever can be rotatably connected with a side wall of the housing or a partition plate in the housing, a trip buckle and a latch are rotatably mounted on the lever, the moving contact is rotatably mounted through a contact support and is linked with the lever, the trip buckle is in snap fit with one end of the latch, the other end of the trip buckle is linked with a connecting rod, the latch is provided with a linkage portion integrally in a rod-shaped structure, an avoiding hole is formed in the side wall of the housing or the partition plate corresponding to the linkage portion, and one end of the linkage portion can penetrate through the avoiding hole and extend into an adjacent mounting cavity; an energy storage spring is assembled between the lever and the contact support, two elastic arms of the energy storage spring are respectively abutted against the contact support and the lever, and the energy storage spring is preferably a torsion spring which is coaxially and rotatably assembled with the contact support.

It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when used, and are only for convenience of description, but do not indicate that the referred device or element must have a specific orientation, and thus, should not be construed as limiting the present invention. Moreover, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating relative importance.

The foregoing is a more detailed description of the invention, taken in conjunction with the accompanying preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the inventive concept, and all such changes should be considered as falling within the scope of the invention.

Claims (10)

1. The utility model provides an electric leakage test module, includes electric leakage test circuit and gets circuit board (35) of electricity from the major loop, electric leakage test circuit includes experimental button (33), first elastic component (31) and second elastic component (32) cooperation form the breakpoint in electric leakage test circuit, press experimental button (33) to make first elastic component (31) take place elastic deformation and second elastic component (32) contact, its characterized in that: the electric leakage test circuit also comprises a wiring board (34), the second elastic piece (32) is connected with the wiring board (34) and the circuit board (35), and the wiring board (34) is used as a common electricity taking end of the electric leakage test circuit and the circuit board (35) to be connected with the main circuit.

2. An electrical leakage test module according to claim 1, characterized in that: the second end (322) of the second elastic piece (32) is elastically abutted to the wiring board (34), the first end (321) of the second elastic piece (32) is plugged in the circuit board (35), and the middle part of the second elastic piece (32) is matched with the first elastic piece (31) to form a breakpoint of the electric leakage test loop.

3. An electrical leakage test module according to claim 1, characterized in that: the wiring board (34) is provided with a connecting groove (341), and the second end (322) of the second elastic piece (32) is elastically limited in the connecting groove (341) and elastically abutted against the wiring board (34).

4. A leakage test module according to claim 3, wherein: the second elastic piece (32) is arranged between the wiring board (34) and the circuit board (35), the board surface of the wiring board (34) and the board surface of the circuit board (35) are arranged in a crossed mode, the second end (322) of the second elastic piece (32) extends into the connecting groove (341) along the direction perpendicular to the wiring board (34) and is abutted against the side wall of the connecting groove (341), and the middle of the second elastic piece (32) extends to the position between the circuit board (35) and the first elastic piece (31) along the direction perpendicular to the board surface of the wiring board (34).

5. A leakage test module according to claim 3, wherein: the first end of the wiring board (34) is used for being connected with a wiring terminal (41) of the circuit breaker, and a connecting groove (341) is formed in the end portion of the second end of the wiring board (34).

6. A leakage test module according to claim 3 or 5, wherein: the connecting groove (341) penetrates through the surface of the wiring board (34), the opening of the connecting groove (341) inclines towards one side, and the closed end of the connecting groove (341) is in the shape of an obtuse circle with the inner diameter larger than that of the opening.

7. An electrical leakage test module according to claim 1, characterized in that: the first elastic piece (31) is located on one side of the second elastic piece (32), the first end of the first elastic piece (31) is abutted to the test button (33), the first end of the first elastic piece (31) and the middle of the second elastic piece (32) are opposite at intervals to form a breakpoint of the leakage test loop, and the second end of the first elastic piece (31) is electrically connected with the circuit board (35).

8. An electrical leakage test module according to claim 1, characterized in that: first elastic component (31) are including integrated into one piece's first inclined plane (311), second inclined plane (312) and connection face (313), connect the face and connect between first inclined plane (311) and second inclined plane (312), the middle part of connecting face (313) is equipped with fixed mounting portion, second inclined plane (312) are held through wire and are connected with circuit board (35) as the second of first elastic component (31), first inclined plane (311) are located the top of fixed boss (12), the middle part and experimental button (33) butt of first inclined plane (311), form the breakpoint by the tip on first inclined plane (311) as the first end and the cooperation of second elastic component (32) of first elastic component (31).

9. An electrical leakage test module according to claim 2, characterized in that: the second elastic piece (32) comprises a first connecting arm (32 a), a second connecting arm (32 b), a first straight section (32 c), a second straight section (32 d), an L-shaped connecting section and a bending connecting section;

the first connecting arm (32 a) is connected with the head end of the second connecting arm (32 b), the middle part of the first connecting arm (32 a) is opposite to the middle part of the second connecting arm (32 b) at intervals and is matched with the first elastic piece (31) to form a breakpoint, the head end of the first flat section (32 c) is connected with the tail end of the first connecting arm (32 a) along the direction vertical to the first connecting arm (32 a), the head end of the L-shaped connecting section is vertically connected with the tail end of the first flat section (32 c), the tail end of the L-shaped connecting section is positioned on one side far away from the second connecting arm (32 b), the plane where the first flat section (32 c) and the L-shaped connecting section are positioned is vertical to the plane where the first connecting arm (32 a) and the second connecting arm (32 b) are positioned, and the tail end of the L-shaped connecting section is used as the first end (321) of the second elastic piece (32) to be plugged with the circuit board (35);

the second straight section (32 d) is vertically connected to the tail end of the second connecting arm (32 b), the second straight section (32 d) is parallel to the first straight section (32 c), the head end of the bent connecting section is connected to the tail end of the second straight section (32 d), the plane of the bent connecting section is parallel to the planes of the first connecting arm (32 a) and the second connecting arm (32 b), and the tail end of the bent connecting section is used as the second end (322) of the second elastic piece (32) to be elastically abutted against the wiring board (34).

10. A circuit breaker comprising a housing and at least one breaker pole (2) disposed within the housing, characterized in that: further comprising an electrical leakage test module according to any of claims 1-9.

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