Leakage circuit breaker device

Abstract

The present invention relates to the field of low-voltage electrical appliances, and in particular to a leakage circuit breaker device, which comprises a leakage circuit breaker, a function expansion base arranged at one side of the leakage circuit breaker, and a shunt tripping module plugged with the function expansion base; the shunt tripping module comprises a shunt release, the function expansion base comprises a switch element driven and matched with the shunt release, the leakage circuit breaker comprises a leakage test circuit, the leakage test circuit comprises a test resistor R, the switch element and the test resistor R are connected in series between a phase pole circuit and an N pole circuit of the leakage circuit breaker, the shunt tripping module receives an external tripping signal to actuate the shunt release, drives the switch element to conduct, and opens the leakage circuit breaker; the leakage circuit breaker device of the present invention, wherein the shunt tripping module realizes a shunt tripping working mode of the leakage circuit breaker.

Description

Technical Field

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

[0002] Low-voltage circuit breakers, also known as automatic air switches or automatic air circuit breakers, can be used to distribute electrical energy, protect lines and power equipment in the event of overload or short-circuit faults, and can also be used for infrequent line switching and infrequent motor starting. As an important product of low-voltage circuit breakers, leakage circuit breakers generally have functions such as short-circuit protection, overload protection, leakage protection, over-voltage and under-voltage protection, and leakage self-test. If users also need surge protection, shunt tripping, fault alarm, fault display, auxiliary contacts and other functions, the traditional implementation method is to reconnect an accessory with this function in the distribution box, which is more complicated to wire and occupies a large space. Summary of the invention

[0003] The object of the present invention is to overcome the defects of the prior art and provide a leakage circuit breaker device, wherein the shunt tripping module of the leakage circuit breaker realizes the shunt tripping working mode of the leakage circuit breaker.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A leakage circuit breaker device comprises a leakage circuit breaker 1, a function expansion base 2 arranged at one side of the leakage circuit breaker 1, and a shunt tripping module 3a plugged with the function expansion base 2; the shunt tripping module 3a comprises a shunt release 36a, the function expansion base 2 comprises a switch element 23b driven and matched with the shunt release 36a, the leakage circuit breaker 1 comprises a leakage test circuit, the leakage test circuit comprises a test resistor R, the switch element 23b and the test resistor R are connected in series between the phase pole circuit and the N pole circuit of the leakage circuit breaker 1, the shunt tripping module 3a receives an external tripping signal to actuate the shunt release 36a, drives the switch element 23b to conduct, and opens the leakage circuit breaker 1.

[0006] Preferably, the shunt trip module 3a further includes a first power terminal 31a, and the function expansion base 2 further includes a base power terminal 20b, and the first power terminal 31a is plug-matched with the base power terminal 20b.

[0007] Preferably, the shunt trip module 3a further includes a first signal terminal 34a, the function expansion base 2 further includes a base signal component 25b, the base signal component 25b includes a base signal terminal 252b, and the first signal terminal 34a and the base signal terminal 252b are in contact and mating.

[0008] Preferably, the first power terminal 31a is a plug-type terminal, the base power terminal 20b is an elastic clip-type conductive member; and the switch member 23b is a normally open micro switch.

[0009] Preferably, the first signal terminal 34a is a contact plate terminal, the base signal terminal 252b is a spring sheet terminal, and the first signal terminal 34a and the base signal terminal 252b are in elastic contact and fit.

[0010] Preferably, the base signal component 25b further includes a base signal circuit board 250b and a communication port 251b, and the communication port 251b and the base signal terminal 252b are respectively arranged on both sides of the base signal circuit board 250b.

[0011] Preferably, the function expansion base 2 comprises a module slot 20 of a U-shaped structure, and the base power terminal 20 b and the switch element 23 b are respectively arranged at the bottom of the U-shaped structure of the module slot 20 .

[0012] Preferably, the function expansion base 2 includes a module slot 20 of a U-shaped structure, and the base signal component 25 b is arranged on a side wall of the module slot 20 of the U-shaped structure.

[0013] Preferably, the shunt trip module 3a includes a first module cover 30a, the first module cover 30a includes a first guide rib 300a, a guide groove is provided on the side wall of the module slot 20, and the first guide rib 300a and the guide groove are used in coordination.

[0014] Preferably, the shunt trip module 3 a is inserted from an open end of the U-shaped structure of the module slot 20 or from one side of the U-shaped structure.

[0015] Preferably, the shunt release module 3a also includes a first module cover 30a, a first module mounting plate 37a, a first power terminal 31a, a first signal terminal 34a and a first module circuit board 38a, the first module mounting plate 37a is fixedly arranged in the first module cover 30a, the first module circuit board 38a and the shunt release 36a are respectively arranged on the first module mounting plate 37a, and the first power terminal 31a, the first signal terminal 34a and the shunt release 36a are respectively connected to the first module circuit board 38a.

[0016] Preferably, the leakage circuit breaker 1 is a two-phase circuit breaker, including an L-pole circuit and an N-pole circuit, and the switch element 23b and the test resistor R are connected in series between the L-pole circuit and the N-pole circuit.

[0017] Preferably, the first power terminal 31a of the shunt trip module 3a includes a first L-pole plug, a first N-pole plug and a first grounding plug, and the base power terminal 20b of the function expansion base 2 includes a grounding conductor 200b, an L-pole conductor 201b and an N-pole conductor 202b, which are respectively plugged into the first grounding plug, the first L-pole plug and the first N-pole plug, and the L-pole conductor 201b and the N-pole conductor 202b are respectively connected to the L-pole circuit and the N-pole circuit.

[0018] The shunt trip module of the leakage circuit breaker device of the present invention is easy to install and realizes the shunt trip working mode of the leakage circuit breaker device of the present invention; and the shunt trip module can be used by being inserted into the function expansion base, realizing plug-and-play, thereby improving the work efficiency of the user. In addition, the module slot is a slot of a U-shaped structure, the base power terminal and the switch element are respectively arranged at the bottom of the U-shaped structure of the module slot, and the base signal component is arranged at the side wall of the U-shaped structure of the module slot. As the shunt trip module is inserted into the module socket, the plug-in matching of the first power terminal and the base power terminal and the release matching of the first signal terminal and the base signal terminal can be completed, which greatly improves the assembly efficiency of the shunt trip module and the function expansion base. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the leakage circuit breaker of the present invention, which at least shows the positional relationship between the leakage circuit breaker and the function expansion base;

[0020] Figure 2 It is a schematic diagram of the structure of the leakage circuit breaker device of the present invention, which at least shows the structure of the L-pole circuit;

[0021] Figure 3 It is a schematic diagram of the structure of the leakage circuit breaker device of the present invention, at least showing the structure of the N-pole circuit and the leakage test circuit, and the leakage circuit breaker is in an open state;

[0022] Figure 4 It is a schematic diagram of the structure of the leakage circuit breaker device of the present invention, which at least shows the structure of the N-pole circuit and the base power terminal of the function expansion base;

[0023] Figure 5 It is a schematic diagram of the structure of the leakage circuit breaker device of the present invention, at least showing the structure of the N-pole circuit and the leakage test circuit, and the leakage circuit breaker is in a closed state;

[0024] Figure 6 It is a structural schematic diagram of the leakage test circuit of the present invention;

[0025] Figure 7 is a schematic structural diagram of a function expansion base of the present invention, which at least shows a base power supply terminal, a switch component and a base circuit board;

[0026] Figure 8 A schematic diagram of the structure of the function expansion base of the present invention, showing at least the base power supply terminal, the switch element, the base circuit board and the base signal component;

[0027] Fig. 9 is a schematic structural diagram of the second baffle of the present invention;

[0028] Fig.10 It is a structural schematic diagram of a first matching mode between the function expansion module and the function expansion base of the present invention;

[0029] Fig.11 It is a structural schematic diagram of a second matching mode between the function expansion module and the function expansion base of the present invention;

[0030] Fig.12 It is a structural schematic diagram of a third matching mode of the function expansion module and the function expansion base of the present invention;

[0031] Fig.13 It is a structural schematic diagram of a fourth matching mode of the function expansion module and the function expansion base of the present invention;

[0032] Fig.14 is a schematic structural diagram of the shunt trip module of the present invention, at least showing the structure of the first module housing;

[0033] Fig.15 It is a schematic diagram of the matching structure of the shunt trip module, the base signal component and the switch element of the present invention;

[0034] Fig.16 It is a structural schematic diagram of the automatic reclosing module and the leakage circuit breaker of the present invention;

[0035] Fig.17 It is a structural schematic diagram of the automatic reclosing module of the present invention;

[0036] Fig.18 is a structural schematic diagram of the auxiliary contact module of the present invention;

[0037] Fig.19 is a schematic structural diagram of a third handle of the present invention;

[0038] Fig. 20 It is a structural schematic diagram of the fault alarm indication module of the present invention;

[0039] Fig.21 It is a circuit topology diagram of the leakage circuit breaker of the present invention. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1-21The following embodiments are provided to further illustrate the specific implementation of the leakage circuit breaker device of the present invention. The leakage circuit breaker of the present invention is not limited to the description of the following embodiments.

[0041] like Figure 1 , 10 As shown in Figure 13, the leakage circuit breaker device of the present invention comprises a leakage circuit breaker 1, a function expansion base 2 and a function expansion module 3 plugged with the function expansion base 2. Further, the leakage circuit breaker 1 and the function expansion base 2 are used together, and the leakage circuit breaker 1 and the function expansion base 2 are an integrated structure or a detachable split structure.

[0042] Preferably, Figure 1 , 10 As shown in FIG. 13 , the function expansion base 2 is arranged on one side of the leakage circuit breaker 1, and the function expansion base 2 includes a module slot 20, and the function expansion module 30 is inserted into the module slot 20. Further, as Figure 1 , 10 As shown in FIG. 13 , the leakage circuit breaker device further includes a guide structure for guiding and limiting the function expansion module 3 during the process of inserting the function expansion module 3 into the module slot 20. Further, as Figure 1 , 10 As shown in FIG. 13 , the guide structure includes a guide rib and a guide groove used in conjunction with each other, one of which is arranged on the function expansion base 2 , and the other is arranged on the function expansion module 3 .

[0043] Preferably, Figure 10-11 As shown, the module slot 20 is a slot of a U-shaped structure, and the function expansion module 3 is inserted into the module slot 20 from an open end of the U-shaped structure or from one side of the U-shaped structure.

[0044] Preferably, Figure 12-13 As shown, the module slot 20 is a right-angle slot, and the function expansion module 3 is inserted into the module slot 20 from a first direction or a second direction, the first direction is opposite to one side wall of the right-angle slot, and the second direction is opposite to the other side wall of the right-angle slot.

[0045] The module slot 20 can be set to different shapes and the function expansion module 3 can be inserted into the module slot 20 from different directions, so that the function expansion base 2 can cooperate with more function expansion modules 3 of different types (structures and functional types).

[0046] Preferably, the leakage circuit breaker 1 includes a short circuit protection mechanism, an overload protection mechanism, a leakage protection mechanism, an over-voltage and under-voltage protection mechanism, and a leakage self-detection mechanism. Of course, the mechanisms included in the leakage circuit breaker 1 can be increased or decreased according to actual needs.

[0047] Preferably, the function expansion module 3 is a surge protection module, a shunt trip module 3a, an automatic reclosing module 3b, an auxiliary contact module 3c or a fault alarm indication module 3d. The above modules can be plugged into and matched with the module slot 20. Users can replace function expansion modules with different functions as needed, so that the leakage circuit breaker device of the present invention can be suitable for more usage scenarios.

[0048] Preferably, Figure 2-5 As shown in Figures 7 and 9, the leakage circuit breaker 1 includes an L-pole circuit and an N-pole circuit arranged side by side and at intervals, and a circuit breaker housing 1a; the circuit breaker housing 1a includes a first partition 1c arranged therein, and the L-pole circuit and the N-pole circuit are both arranged in the circuit breaker housing 1a and are respectively located on both sides of the first partition 1c; the function expansion base 2 includes a PE-pole circuit and a second partition 2a matched with the circuit breaker housing 1a, the N-pole circuit is located between the first partition 1c and the second partition 2a, and the PE-pole circuit and the N-pole circuit are respectively arranged on both sides of the second partition 2a; the L-pole circuit, the N-pole circuit and the PE-pole circuit are respectively arranged in different spaces, which is beneficial to improving the insulation performance inside the leakage circuit breaker device of the present invention.

[0049] Preferably, Figure 3 , 5 As shown in Figure 9, the N-pole circuit includes an N-pole moving contact 110d and an N-pole static contact 111d used together, and the residual current circuit breaker 1 includes an N-pole arc extinguishing chamber, one end of the N-pole moving contact 110d is inserted into the N-pole arc extinguishing chamber from one end of the N-pole arc extinguishing chamber, and is closed / disconnected with the N-pole static contact 111d in the N-pole arc extinguishing chamber, and an arc-cutting side wall 212c is provided at the other end of the N-pole arc extinguishing chamber, and the arc-cutting side wall 212c is provided with a plurality of arc-extinguishing holes arranged at intervals, and the residual current circuit breaker also includes an exhaust hole 214c corresponding to the arc-cutting side wall 212c; the N-pole arc extinguishing chamber, on the one hand, prevents the arc from spreading in the N-pole circuit, which is beneficial to improving the insulation in the N-pole circuit, and on the other hand, is beneficial to improving the arc extinguishing efficiency and arc extinguishing performance.

[0050] like Figure 8 , 14 , 15, and 21 show an implementation method of the leakage circuit breaker device of the present invention.

[0051] like Fig.14 and 15 As shown, the function expansion module 3 is a shunt trip module 3a, and the shunt trip module 3a includes a shunt release 36a; Figure 8 As shown, the functional expansion base 2 includes a switch member 23b drivingly matched with the shunt release 36a; Fig.21As shown, the leakage circuit breaker 1 includes a leakage test circuit, the leakage test circuit includes a test resistor R, and the switch 23b and the test resistor R are connected in series between the phase pole circuit and the N pole circuit of the leakage circuit breaker 1; the shunt trip module 3a receives an external trip signal to activate the shunt trip 36a, drive the switch 23a to conduct, and open the leakage circuit breaker 1. The shunt trip module 3a is easy to install and realizes the shunt trip working mode of the leakage circuit breaker device of the present invention; and the shunt trip module can be used by being inserted into the function expansion base, realizing plug-and-play, thereby improving the work efficiency of the user.

[0052] It should be pointed out that when the leakage circuit breaker 1 is a two-phase circuit breaker, the phase pole circuit of the leakage circuit breaker 1 is the L pole circuit.

[0053] Preferably, Fig.14 and 15 As shown, the shunt trip module 3a includes a first power terminal 31a and a first signal terminal 34a; Figure 4 and 8 As shown, the function expansion base 2 includes a base power terminal 20b and a base signal component 25b, the base signal component 25b includes a base signal terminal 252b, the first power terminal 31a is plugged with the base power terminal 20b, and the first signal terminal 34a is in contact with the base signal terminal 252b. The first power terminal 31a cooperates with the base power terminal 20b, and the first signal terminal 34a cooperates with the base signal terminal 252b, which improves the convenience of wiring the shunt trip module 3a with the function expansion base 2. Further, as Figure 8 As shown, the module slot 20 is a slot of a U-shaped structure, the base power terminal 20b and the switch element 23b are respectively arranged at the bottom of the U-shaped structure of the module slot 20, and the base signal component 25b is arranged at the side wall of the U-shaped structure of the module slot 20. As the shunt trip module 3a is inserted into the module socket 20, the plug-in matching of the first power terminal 31a and the base power terminal 20b and the contact matching of the first signal terminal 34a and the base signal terminal 252b can be completed, which greatly improves the assembly efficiency of the shunt trip module 3a and the function expansion base 2.

[0054] like Figure 1 , 7 , 16 and 17 show another implementation of the leakage circuit breaker device of the present invention.

[0055] like Fig.16 and 17As shown, the function expansion module 3 is an automatic reclosing module 3b, which includes a second module housing 30b and a motor 32b, a gear set, a driving connecting rod 34b, and a second handle 31b, which are respectively arranged in the second module housing 30b. The second handle 31b is pivotally arranged on the second module housing 30b, and the gear set is driven and matched with the second handle 31b through the driving connecting rod 34b. The leakage circuit breaker 1 includes a first handle 11b, and the second handle 31b is driven and connected to the first handle 11b and moves synchronously. The automatic reclosing module 3b is plug-in-matched with the function expansion base 2, which is easy to assemble and realizes the remote automatic reclosing operation of the leakage circuit breaker 1. Further, as Fig.16 As shown, the second handle 31b includes a second rotating portion 311b pivotally disposed on the second module housing 30b and a second toggle portion 310b disposed around the second rotating portion 311b, one end of the second toggle portion 310b is connected to the second rotating portion 311b, and the other end is detachably connected to the first handle 11b. Fig.16 As shown, the handle toggle portion 310b has a second slot at one end, and the first handle 11b is inserted into the second slot. The second handle 31b and the first handle 11b are easy to assemble / disassemble, further improving the assembly efficiency of the automatic reclosing module 3b and the function expansion base 2.

[0056] Preferably, Fig.17 As shown, the second handle 31b also includes a second driven portion 312b arranged on the periphery of the second rotating portion 311b of the second handle 31b; the gear set of the automatic reclosing module 3b includes a driving gear 35b pivotally arranged on the second module housing 30b, one end of the driving connecting rod 34b is drivingly connected to the driving gear 35b, and the other end is drivingly matched with the second driven portion 312b. Figure 2 As shown, the leakage circuit breaker 1 also includes an operating mechanism 12b, which includes a lock member 122b and a jumper 123b that lock and match, and the jumper 122b is driven and matched with a driving gear 35b; the driving gear 35b rotates in a first direction, and the leakage circuit breaker 1 is closed by sequentially driving the matched driving connecting rod 34b, the second handle 31b, and the first handle 11b; the driving gear 35b rotates in a second direction, drives the jumper 123b to rotate and releases the lock and match with the lock member 122b, so that the leakage circuit breaker 1 is opened. The automatic reclosing module 3b can realize both the automatic closing and the automatic opening of the leakage circuit breaker 1.

[0057] like Figure 1 , 7 20 is another implementation of the leakage circuit breaker device of the present invention.

[0058] like Fig. 20 As shown, the function expansion module 3 is a fault alarm indication module 3d, which includes a fourth module housing 30d, an alarm circuit board 34d, an alarm element, and a fourth power terminal 36d, which are respectively arranged in the fourth module housing 30d; the alarm element is arranged on the alarm circuit board 34d, and the fourth power terminal 36d is connected to the alarm circuit board 34d and plugged with the function expansion base 2. The fault alarm indication module 3d is quick and easy to assemble with the function expansion base 2, and when a fault occurs, an alarm signal will be issued to remind the user to eliminate the fault in time and ensure the normal operation of the power equipment. Further, the alarm element includes a sound alarm element 37d, and / or the alarm element includes a light-emitting alarm element 32d.

[0059] like Figure 1 , 7 , 18 and 19 show another implementation of the leakage circuit breaker device of the present invention.

[0060] like Fig.18 As shown, the function expansion module 3 is an auxiliary contact module 3c, which includes a third module housing 30c, a third handle 31c and at least one contact group arranged in the third module housing 30c, the third handle 31c is pivotally arranged on the third module housing 30c, each auxiliary contact group includes an auxiliary moving contact 320c and an auxiliary static contact 321c used in conjunction, and the auxiliary moving contact 320c is connected to the third handle 31c by driving; the leakage circuit breaker 1 includes a first handle 11b, which is connected to the third handle 31c by driving and acting synchronously. The third handle 31c is connected to the first handle 11b by driving and acting synchronously, realizing the synchronous action of the auxiliary contact module 3c and the leakage circuit breaker 1. The auxiliary contact module 3c is easy to assemble with the function expansion base 2, realizing the synchronous action of the auxiliary moving contact and the moving contact of the leakage circuit breaker, and providing convenience for the function expansion of the leakage circuit breaker device.

[0061] like Figure 3-6 21 shows another implementation of the leakage circuit breaker device of the present invention.

[0062] The leakage circuit breaker 1 includes a circuit breaker housing 1a and at least one phase pole circuit, N pole circuit, leakage test circuit and test button 13g respectively arranged in the circuit breaker housing 1a; the phase pole circuit includes a first handle 11b and an operating mechanism 12b connected by driving, and the phase pole circuit and the N pole circuit are synchronously closed / disconnected; the leakage test circuit includes a test resistor R and a switch circuit connected in series, and the switch circuit includes a first switch S1 and a second switch S2 connected in series, and the first switch S1 and the second switch S2 are both normally open switches, respectively driving and cooperating with the operating mechanism 12b and the test button 13g; when the first handle 11b is turned to drive the operating mechanism 12b to close the leakage circuit breaker 1, the operating mechanism 12b drives the first switch S1 to close; and the test button 13g is pressed to drive the second switch S2 to close. In the leakage circuit breaker device of the present invention, the leakage test circuit is only turned on when the test button 13g is pressed after the leakage circuit breaker 1 is closed, so as to avoid the situation that the test button 13g is accidentally touched and the leakage circuit breaker device is damaged.

[0063] Preferably, Figure 3-6 As shown in , the switch circuit includes a first conductive member 10g, a second conductive member 11g and a third conductive member 12g, the second conductive member 11g is driven to cooperate with the test button 13g, the second conductive member 11g and the first conductive member 10g constitute a second switch S2, the third conductive member 12g is driven to cooperate with the operating mechanism 12b, and the third conductive member 12g and the first conductive member 10g constitute a first switch S1. Further, as Figure 3 , 5 As shown in , the second conductive member 11g and the third conductive member 12g are both torsion springs, one end of the second conductive member 11g and the third conductive member 12g are respectively fixed, and the other end is respectively driven and matched with the test button 13g and the operating mechanism 12b. The switch circuit is composed of the first conductive member 10g, the second conductive member 11g and the third conductive member 12g, and has a simple structure, small space occupation, and low cost. It should be pointed out that the switch circuit is not limited to the above-mentioned implementation method, and its first switch S1 and the second switch S2 can also be implemented by a micro switch, but it occupies a relatively large space and has a relatively high cost.

[0064] The leakage circuit breaker device of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0065] like Figure 1-13 FIG. 1 shows a first embodiment of a leakage circuit breaker device according to the present invention.

[0066] like Figure 1 , 10As shown in Figure 13, the leakage circuit breaker device of the present invention comprises an integrated leakage circuit breaker 1 and a function expansion base 2, and a function expansion module 3 plugged with the function expansion base 2; the function expansion base 2 is arranged on one side of the leakage circuit breaker 1, the function expansion base 2 comprises a module slot 20, and the function expansion module 3 is inserted into the module slot 20. Of course, the leakage circuit breaker 1 and the function expansion base 2 can also be detachably spliced ​​together.

[0067] It should be pointed out that the leakage circuit breaker 1, as a commonly used electrical switching device, generally has a short-circuit protection mechanism (short-circuit protection function), an overload protection mechanism (overload protection function), a leakage protection mechanism (leakage protection function), an over- and under-voltage protection mechanism (over- and under-voltage protection function) and a leakage self-detection mechanism (leakage self-detection function). Of course, depending on the product type of the leakage circuit breaker 1, the above-listed mechanisms (functions) may increase or decrease.

[0068] Preferably, the function expansion module 3 is a surge protection module, a shunt trip module 3a, an automatic reclosing module 3b, an auxiliary contact module 3c or a fault alarm indication module 3d. The function expansion module 3 can be any of the above modules, but is not limited to the above module range, and can also be expanded according to the actual needs of the user, so that the leakage circuit breaker device of the present invention meets the application in different scenarios and different needs.

[0069] Preferably, the function expansion base 2 includes an elastic clip-type conductive member, and the function expansion module 3 includes a module plug, which is plug-fitted with the elastic clip-type conductive member.

[0070] Preferably, Figure 1 , 10 As shown in FIG. 13 , the leakage circuit breaker device further includes a guide structure for guiding and limiting the function expansion module 3 during the process of inserting the function expansion module 3 into the module slot 20. Further, as Figure 1 , 10 As shown in FIG. 13 , the guide structure includes a guide rib and a guide groove used in conjunction with each other, one of which is arranged on the function expansion base 2, and the other is arranged on the function expansion module 3. Specifically, as Figure 1 , 10 -As shown in FIG13, the function expansion base 2 includes a guide groove arranged on the side wall of the module slot 20, and the function expansion module 3 includes a guide rib, and the guide groove and the guide rib cooperate to guide and limit the path of the function expansion module 3 inserted into the function expansion base 2, so that the function expansion module 3 can be inserted into the module slot 20 more smoothly, and the function expansion module 3 can be more accurately connected to the function expansion base 2 (for example, the power terminal of the function expansion module 3 is aligned with the power terminal on the function expansion base 2 more easily and accurately).

[0071] Preferably, Figure 10-13 As shown, the function expansion module 3 is inserted into the module slot 20 from a first direction or from a second direction, and the first direction and the second direction are perpendicular to each other.

[0072] Preferably, Figure 10-11 As shown, the module slot 20 is a slot of a U-shaped structure, and the function expansion module 3 is inserted into the module slot 20 from the open end of the U-shaped structure or from the side of the U-shaped structure opposite to the leakage circuit breaker 1. Specifically, as Fig.10 and 11 In the direction shown, the module slot 20 is a U-shaped slot with an opening end facing upward, and the function expansion module 3 is inserted into the module slot 20 from above, or the function expansion module 3 is inserted into the module slot 20 from the right side.

[0073] Preferably, Figure 12-13 As shown, the module slot 20 is a right-angle slot, the first direction is opposite to one side wall of the right-angle slot, and the second direction is opposite to the other side wall of the right-angle slot. Fig.12 and 13 In the direction shown, the module slot 20 is a right-angle slot, the first direction is opposite to the left side wall of the module slot 20, and the second direction is opposite to the bottom wall of the module slot 20, that is, the function expansion module 3 is horizontally inserted into the module slot 20 from the right, or vertically inserted into the module slot 20 from the top.

[0074] Preferably, the leakage circuit breaker includes at least one phase pole circuit and an N pole circuit, and the phase pole circuit and the N pole circuit are closed / opened synchronously.

[0075] like Figure 2-5 As shown in 7-9, the leakage circuit breaker 1 is preferably a two-phase circuit breaker, including an L-pole circuit and an N-pole circuit arranged side by side, and the L-pole circuit is a phase-pole circuit; the function expansion base 2 includes a PE-pole circuit, and the L-pole circuit is respectively located on both sides of the N-pole circuit, and the PE-pole circuit cooperates with the function expansion module 3. The PE-pole circuit is arranged on one side of the N-pole circuit, which is conducive to the electrical connection between the PE-pole circuit and the leakage test circuit and the leakage circuit breaker.

[0076] Preferably, Figure 2-3As shown in 7-9, the leakage circuit breaker 1 includes a circuit breaker housing 1a, the circuit breaker housing 1a includes a first partition 1c arranged in the middle thereof, the first partition 1c divides the circuit breaker housing 1a into a first space and a second space, the L-pole circuit and the N-pole circuit are both arranged in the circuit breaker housing 1a and are respectively located on both sides of the first partition 1c, the L-pole circuit is located in the first space, and the N-pole circuit is located in the second space; the function expansion base 2 includes a second partition 2a that cooperates with the circuit breaker housing 1a, the N-pole circuit is located between the first partition 1c and the second partition 2a, and the PE-pole circuit and the N-pole circuit are respectively arranged on both sides of the second partition 2a.

[0077] Preferably, Figure 3 and 5 As shown, the N-pole circuit includes an N-pole moving contact 110d and an N-pole static contact 111d used in conjunction with each other; Figure 3 , 5 As shown in Figure 9, the circuit breaker housing 1a includes an N-pole arc extinguishing cavity, one end of the N-pole moving contact 110d is inserted into the N-pole arc extinguishing cavity from one end thereof, and is closed / disconnected with the N-pole static contact 111d in the N-pole arc extinguishing cavity. The other end of the N-pole arc extinguishing cavity is provided with an arc-cutting side wall 212c, and the arc-cutting side wall 212c is provided with a plurality of arc-extinguishing holes arranged at intervals. The circuit breaker housing 1a also includes an exhaust hole 214c corresponding to the arc-cutting side wall 212c. Further, as Figure 3 As shown, the first partition plate 1c includes a first upper retaining rib 213c and a first side retaining rib 211c; Fig. 9 As shown, the second partition 2a includes a second upper baffle 23a and a second side baffle 21a. The second upper baffle 23a and the first upper baffle 213c cooperate to form the upper side wall of the N-pole arc extinguishing chamber. One end of the N-pole moving contact 110d passes through the upper side wall of the arc extinguishing chamber, which can prevent the arc gas in the N-pole arc extinguishing chamber from spraying to the side where the N-pole moving contact 110d is exposed from the N-pole arc extinguishing chamber. The second side baffle 21a and the first side baffle 211c cooperate to form one side wall of the N-pole arc extinguishing chamber, the side wall of the circuit breaker housing 1a constitutes the other side wall of the N-pole arc extinguishing chamber, and the arc cutting side wall 212c constitutes the bottom wall of the N-pole arc extinguishing chamber.

[0078] Preferably, Figure 2 As shown, a plurality of parallel and spaced wiring ribs 10a are provided on one side of the first partition plate 1c facing the L-pole circuit, and the wires of the L-pole circuit are placed on the wiring ribs 10a, so that the wires of the L-pole circuit are closer to the side wall of the leakage circuit breaker 1, which is beneficial to the heat dissipation of the leakage circuit breaker 1.

[0079] Preferably, Figure 4 , 7As shown in FIG. 8 , the PE pole circuit includes a base power terminal 20b, and the base power terminal 20b includes a grounding conductive member 200b, an L pole conductive member 201b connected to the L pole circuit, and an N pole conductive member 202b connected to the N pole circuit. Further, the grounding conductive member 200b, the L pole conductive member 201b, and the N pole conductive member 202b are all elastic clip-type conductive members.

[0080] Preferably, Figure 4 , 7 As shown in , 8, the PE pole circuit also includes a switch 23b; the leakage circuit breaker 1 also includes a leakage test circuit, the leakage test circuit includes a test resistor R and a switch circuit connected in series between the L pole circuit and the N pole circuit, and the switch 23b is connected in parallel with the switch circuit. Further, the test circuit R and the switch circuit are connected in series between the output terminal of the L pole circuit and the input terminal of the N pole circuit (or, the test resistor R and the switch circuit are connected in series between the input terminal of the L pole circuit and the output terminal of the N pole circuit); the switch 23b is a micro switch.

[0081] Preferably, Figure 7-8 As shown, the PE pole circuit also includes a base circuit board 24b, and the switch element 23b is connected to the base circuit board 24b. Figure 7-8 As shown, the switch element 23 b and the base circuit board 24 b are stacked at the bottom of the module slot 20 .

[0082] Preferably, when the function expansion module 3 is a surge protection module or a shunt trip module 3a, it cooperates with the switch 23b drive. Further, the function expansion module 3 is a surge protection module. When a surge current appears in the circuit, the surge module mechanism will be activated (the general surge protection module uses a low-temperature solder gas discharge tube and a varistor. When an overcurrent occurs, the low-temperature solder will be burned off, and the corresponding mechanism will be driven after burning off). The switch 23b is pushed to turn on through the surge module mechanism, so that the leakage circuit breaker 1 trips, and the surge current is connected to the ground through the grounding conductive member 200b of the PE pole.

[0083] Preferably, Figure 8 As shown, the PE pole circuit also includes a base signal component 25b, and the function expansion module 3 is a shunt trip module 3a or an automatic reclosing module 3b, which cooperates with the base signal component 25b, and the external control signal is input into the function expansion module 3 through the base signal component 25b.

[0084] Preferably, Figure 1 , 10-11, when the module slot 20 is a slot of a U-shaped structure, the base power terminal 20b, the switch element 23b and the base circuit board 24b are all arranged at the bottom of the module slot 20, and the base signal component 25b is arranged on the side wall of the module slot 20.

[0085] Preferably, Figure 12-13 As shown, when the module slot 20 is a right-angle slot, the base power terminal 20b, the switch element 23b and the base circuit board 24b are arranged on one side wall of the module slot 20, and the base signal component 25b is arranged on the other side wall of the module slot 20.

[0086] It should be pointed out that the layout of the PE pole circuit in the function expansion base 2 is not limited to the above two types, and can be adjusted according to actual needs. For example, when the module slot 20 is a slot with a U-shaped structure, the base power terminal 20b, the switch element 23b, the base circuit board 24b and the base signal terminal 25b are all arranged at the bottom of the module slot 20; for example, when the module slot 20 is a right-angle slot, the base power terminal 20b, the switch element 23b, the base circuit board 24b and the base signal terminal 25b are all arranged on a side wall of the module slot 20, which are not listed one by one here.

[0087] like Figure 2 As shown, an embodiment of the L-pole circuit is shown: the L-pole circuit includes a first handle 11b, an operating mechanism 12b, a moving contact 130b and a stationary contact 131b used in conjunction with each other, the first handle 11b is pivotally arranged on the first partition 1c and is drivingly connected to the operating handle 12b, and the operating handle 12b is drivingly connected to the moving contact 130b. Further, the operating mechanism 12b includes a first connecting rod 120b, a rotating plate 121b, a locking member 122b, and a jumper 123b, the first handle 11b is drivingly connected to the locking member 122b through the first connecting rod 120b, the rotating plate 121b is pivotally arranged on the first partition 1c, the locking member 122b and the jumper 123b are respectively pivotally arranged on the rotating plate 121b and locked, and the rotating plate 121b is drivingly connected to the moving contact 130b.

[0088] Preferably, the L-pole circuit further includes a short-circuit protection mechanism 14b, an overload protection mechanism 15b and an arc extinguishing chamber 16b.

[0089] It should be noted that when the residual current circuit breaker 1 includes multiple phase-pole circuits, each phase-pole circuit may include an independent operating mechanism, or all phase-pole circuits may share a set of operating mechanisms.

[0090] like Figure 3As shown, it is an embodiment of the N-pole circuit: the N-pole circuit includes an N-pole moving contact 110d and an N-pole static contact 111d used in conjunction with each other, and a driving rod 10d; the N-pole moving contact 110d is rotatably arranged on the first partition 1c, the rotating plate 121b of the operating mechanism 12b is drivingly connected to one end of the driving rod 110d, and the other end of the driving rod 110d is drivingly connected to the N-pole moving contact 110d.

[0091] Preferably, Figure 3 As shown, the circuit breaker also includes a residual current detection coil 10e and a residual current release 11e, both of which are located on the same side of the first partition 1c as the N-pole circuit. The residual current release 11e is driven to cooperate with the rotating plate 121b of the operating mechanism 12b through a driving lever pivotally arranged on the first partition 1c, driving the rotating plate 121b to rotate and release the locking cooperation with the locking member 120b, so that the leakage circuit breaker 1 is opened.

[0092] Preferably, Figure 8 and 15 FIG. 2 is an example of the base signal component 25b: the base signal component 25b includes a base signal circuit board 250b, a communication port 251b and a base signal terminal 252b, wherein the communication port 251b and the base signal terminal 252b are respectively located on both sides of the base signal circuit board 250b. Figure 8 and 15 As shown, the base signal terminal 252b is a spring piece with a V-shaped structure.

[0093] like Figure 1 , 4 , 7-8, 10-11, and 14-15 show the second embodiment of the leakage circuit breaker device of the present invention.

[0094] In the leakage circuit breaker device of this embodiment, its function expansion module 3 is a shunt trip module 3a, and the shunt trip module 3a includes a shunt release 36a; the function expansion base 2 includes a switch 23b driven and matched with the shunt release 36a; the leakage circuit breaker 1 includes a leakage test circuit, and the leakage test circuit includes a test resistor R. The switch 23b and the test resistor R are connected in series between the phase pole circuit and the N pole circuit of the leakage circuit breaker 1. The shunt trip module 3a receives an external trip signal to activate the shunt release 36a, drive the switch 23b to conduct, and open the leakage circuit breaker 1. The shunt release 36a can be an electromagnetic release.

[0095] Preferably, the leakage circuit breaker 1 is a two-phase circuit breaker, including an L-pole circuit and an N-pole circuit, and the L-pole circuit is a phase-pole circuit.

[0096] Preferably, Figure 14-15As shown, the shunt trip module 3a includes a first power terminal 31a and a first signal terminal 34a; Figure 4 , 7 -8, 15, the function expansion base 2 includes a base power terminal 20b and a base signal component 25b, the base signal component 25b includes a base signal terminal 252b, the first power terminal 31a is plugged into the base power terminal 20b, and the first signal terminal 34a is in contact with the base signal terminal 252b.

[0097] Preferably, Figure 14-15 As shown, the first power terminal 31a is a plug-type terminal. Figure 7-8 As shown, the base power terminal 20b is an elastic clip-type conductive member; Figure 8 and 15 As shown, the base signal terminal 252b is a spring-type terminal. Fig.15 As shown, the first signal terminal 34a is a contact plate terminal, which is elastically in contact with the base signal terminal 252b. Figure 14-15 As shown, the first power terminal 31a includes a first L-pole plug, a first N-pole plug and a first grounding plug. Figure 7-8 As shown, the base power terminal 20b includes a grounding conductive member 200b, an L-pole conductive member 201b and an N-pole conductive member 202b, which are respectively plugged and matched with the first grounding plug, the first L-pole plug and the first N-pole plug.

[0098] Preferably, Figure 4 , 7 As shown in Figure 8, the switch element 23b is a normally open micro switch.

[0099] Preferably, Fig.14 and 15 As shown, the shunt release module 3a also includes a first module housing 30a, a first module mounting plate 37a and a first module circuit board 38a. The first module mounting plate 37a is fixedly arranged in the first module housing 30a. The first module circuit board 38a and the shunt release 36a are respectively arranged on the first module mounting plate 37a. The first power terminal 31a, the first signal terminal 34a and the shunt release 36a are respectively connected to the first module circuit board 38a. Further, as Fig.14 and 15 As shown, one end of the first power terminal 31a protrudes from the lower side of the shunt trip module 3a, and the first signal terminal 34a is located at the left side wall of the first module cover 30a.

[0100] Preferably, Figure 1 , 10-11, the module slot 20 is a slot of a U-shaped structure, the base power terminal 20b and the switch element 23b are respectively arranged at the bottom of the U-shaped structure of the module slot 20, and the base signal terminal 25b is arranged on the side wall of the U-shaped structure of the module slot 20.

[0101] Preferably, Fig.14 As shown, the first module housing 30a includes a first guide rib 300a; Figure 1 , 10 As shown in FIG. 11 , guide grooves are provided on the side walls of the module slot 20 .

[0102] like Figure 1 , 4 , 7-8, 10-11, and 16-17 show the third embodiment of the leakage circuit breaker device of the present invention.

[0103] In the leakage circuit breaker device of this embodiment, its function expansion module is a 3-position automatic reclosing module 3b, the automatic reclosing module 3b includes a second module housing 30b and a motor 32b, a gear set, a driving connecting rod 34b and a second handle 31b respectively arranged in the second module housing 30b, and the second handle 31b is pivotally arranged on the second module housing 30b, and the gear set is driven and matched with the second handle 31b through the driving connecting rod 34b; the leakage circuit breaker 1 includes a first handle 11b, and the second handle 31b is driven and connected to the first handle 11b and moves synchronously.

[0104] Preferably, the automatic reclosing module 3b includes a second signal terminal, which contacts and cooperates with the base signal terminal 252b of the function expansion base 2, and the external opening / closing signal is input into the automatic reclosing module 3b through the base signal terminal 252b and the second signal terminal.

[0105] Preferably, Fig.16 and 17 As shown, the second handle 31b includes a second rotating portion 311b pivotally disposed on the second module housing 30b and a second toggle portion 310b disposed around the second rotating portion 311b, one end of the second toggle portion 310b is connected to the second rotating portion 311b, and the other end is detachably driven and connected to the first handle 11b and moves synchronously. Fig.16 and 17 As shown, the second handle 31b also includes a second driven portion 312b arranged on the periphery of the second rotating portion 311b; the gear set of the automatic reclosing module 3b includes a driving gear 35b pivotally arranged on the second module housing 30b, one end of the driving connecting rod 34b is drivingly connected to the driving gear 35b, and the other end is drivingly matched with the second driven portion 312b.

[0106] Preferably, one end of the second shifting portion 310b is connected to the second rotating portion 311b, and the other end is provided with a second slot, and the first handle 11b is inserted into the second slot.

[0107] Preferably, the automatic reclosing module 3b further includes a guide limit groove 300b provided on the second module housing 30b, one end of the driving connecting rod 34b is drivingly connected to the driving gear 35b, and the other end is movably inserted in the guide limit groove 300b and drivingly cooperates with the second driven part 312b. Further, the guide limit groove 300b is an arc groove.

[0108] Preferably, the tripping member 123b of the operating mechanism 12b is driven and matched with the driving gear 35b; the driving gear 35b rotates in a third direction, and closes the leakage circuit breaker 1 by sequentially driving the matched driving connecting rod 34b, the second handle 31b, and the first handle 11b; the driving gear 35b rotates in a fourth direction, drives the tripping member 123b to rotate and releases the locking match with the locking member 122b, so that the leakage circuit breaker 1 is opened; the third direction and the fourth direction are opposite (i.e., they are in opposite directions to each other). Furthermore, the tripping member 123b includes a tripping member actuated column, which is driven and matched with the driving gear 35b, and the driving gear 35b rotates and drives the tripping member to rotate through the tripping member actuated column. Fig.16 As shown, a corresponding transmission member is provided below the driving gear 35b, and a corresponding transmission hole is provided on the second module housing 30b, and the driving gear 35b can drive the jumper 123b through the transmission member.

[0109] Preferably, Fig.16 As shown, the gear set includes a worm 33b, a first intermediate gear 37b, a second intermediate gear 36b and a driving gear 35b that are meshed in sequence, and the worm 33b is drivingly connected to the motor 32b.

[0110] Preferably, the driving connecting rod 34b is a U-shaped connecting rod.

[0111] It should be pointed out that the automatic reclosing module 3b, the structure and principle of its motor 32b and gear group driving the second handle 31b to rotate, and the structure and principle of the driving gear 35 driving the tripping member 123b to rotate and release the lock cooperation with the lock member 122b, are all prior arts in this field and will not be described in detail here; one of the main improvements of the leakage circuit breaker device of this embodiment is: the connection method of the second handle 31b and the first handle 11b, and the cooperation method of the automatic reclosing module 3b and the function expansion base 2.

[0112] Preferably, Fig.16 and 17As shown, the automatic reclosing module 3b also includes a second power terminal 38b, which is plugged with the base power terminal 20b of the function expansion base 2. Further, the leakage circuit breaker 1 is preferably a two-phase circuit breaker; the second power terminal 38b includes a second L-pole plug and a second N-pole plug, which are respectively plugged with the L-pole conductive member 201b and the N-pole conductive member 202b of the base power terminal 20b.

[0113] Preferably, Fig.17 As shown, the second module housing 30b includes a second guide rib; Figure 1 , 10 As shown in FIG. 11 , a guide groove is provided on the side wall of the module slot 20 , and the second guide rib is used in conjunction with the guide groove.

[0114] Preferably, Figure 1 , 10 As shown in FIG. 11 , the module slot 20 is a slot of a U-shaped structure, and the base power terminal 20b is arranged at the bottom of the U-shaped structure of the module slot 20; Fig.17 As shown, one end of the second power terminal 38b protrudes from the lower side of the automatic reclosing module 3b.

[0115] like Figure 1 , 4 , 7-8, 10-11, and 20 show the fourth embodiment of the leakage circuit breaker device of the present invention.

[0116] In the leakage circuit breaker device of this embodiment, its function expansion module 3 is a fault alarm indication module 3d, which includes a fourth module housing 30d, an alarm circuit board 34d, a sound alarm element 37d and a light alarm element 32d, and a fourth power terminal 36d, respectively arranged in the fourth module housing 30d; the sound alarm element 37d and the light alarm element 32d are respectively arranged on the alarm circuit board 34d, and the fourth power terminal 36d is connected to the alarm circuit board 34d and plugged with the function expansion base 2. Further, the fault alarm indication module 3d also includes a fourth mounting plate 38d arranged in the fourth module housing 30d, and the alarm circuit board 34d and the fourth power terminal 36d are respectively arranged on the fourth mounting plate 38d.

[0117] Preferably, Fig. 20 As shown, the fourth module housing 30d includes a light-transmitting structure 33d, which is matched with the light-emitting alarm element 32d. Further, the light-transmitting structure 33d is a transparent part of the fourth module housing 30d.

[0118] Preferably, the sound alarm element 37d is a buzzer, and the light alarm element 32d is a light emitting diode.

[0119] Preferably, the leakage circuit breaker is a two-phase circuit breaker; Fig. 20 As shown, the fourth power terminal 36d includes a fourth L-pole plug 361d, a fourth N-pole plug 362d and a fourth grounding plug 360d, which are respectively plugged into the L-pole conductive member 201b, the N-pole conductive member 202b and the grounding conductive member 200b of the base power terminal 20b.

[0120] Preferably, Fig. 20 As shown, the fourth module housing 30d includes a fourth guide rib, such as Figure 1 , 10 As shown in FIG. 11 , a guide groove is provided on the side wall of the module slot 20, and the fourth guide rib cooperates with the guide groove.

[0121] Preferably, Figure 1 , 10 As shown in FIG. 11 , the module slot 20 is a slot of a U-shaped structure, and the base power terminal 20b is arranged at the bottom of the U-shaped structure of the module slot 20; Fig. 20 As shown, one end of the fourth power terminal 36d protrudes from the lower side of the fault alarm indicating module 3d.

[0122] like Figure 1 , 4 , 7-8, 10-11, and 18-19 show the fifth embodiment of the leakage circuit breaker device of the present invention.

[0123] In the leakage circuit breaker device of this embodiment, its function expansion module 3 is an auxiliary contact module 3c, which includes a third module housing 30c, a third handle 31c and at least one group of auxiliary contact groups arranged in the third module housing 30c, and the third handle 31c is pivotally arranged on the third module housing 30c, and each group of auxiliary contact groups includes an auxiliary moving contact 320c and an auxiliary static contact 321c used in conjunction with each other, and the auxiliary moving contact 320c is drivingly connected to the third handle 31c; the leakage circuit breaker 1 includes a first handle 11b, which is drivingly connected to the third handle 31c and acts synchronously.

[0124] Preferably, Fig.18 As shown, each group of the auxiliary contact groups includes an auxiliary moving contact 320c and two auxiliary static contacts 321c respectively arranged on both sides of the auxiliary moving contact 320c, of which one is a normally closed static contact and the other is a normally open static contact. Further, the auxiliary contact module 3c also includes an auxiliary terminal group used in a one-to-one manner with the auxiliary contact group, and each group of the auxiliary terminal group includes two terminals, which are respectively electrically connected to the two auxiliary static contacts 321c of one group of the auxiliary contact group.

[0125] Preferably, Fig.18 and 19As shown, the third handle 31c includes a third rotating portion 311c pivotally arranged on the third module housing 30c, a third toggle portion 310c drivingly connected to the first handle 11b, and a third mounting portion 312c drivingly connected to the moving contact 320c; the third toggle portion 310c and the third mounting portion 312c are respectively arranged on the circumference of the third rotating portion 311c. Further, as Fig.19 As shown, one end of the third toggle portion 310c is connected to the third rotating portion 311c, and the other end is provided with a third slot 3100c, and the first handle 11b is clamped in the third slot 3100c.

[0126] Preferably, Fig.18 As shown, the auxiliary moving contact 320c includes an auxiliary moving contact bridge and an auxiliary moving contact point, the auxiliary moving contact bridge includes a first part of the auxiliary moving contact bridge and a second part of the auxiliary moving contact bridge, one end of the second part of the auxiliary moving contact bridge is bent and connected to the first part of the auxiliary moving contact bridge, and the other end is provided with an auxiliary moving contact point; the third mounting portion 312c includes a contact slot 3120c, the part of the third mounting portion 312c located on one side of the contact slot 3120c constitutes a contact bridge limiter, the second part of the auxiliary moving contact is clamped in the contact slot 3120c, and the first part of the auxiliary moving contact and the second part of the auxiliary moving contact are respectively located on both sides of the contact bridge limiter. Further, the connection between the first part of the auxiliary moving contact and the second part of the auxiliary moving contact bridge is limitedly matched with the third rotating portion 311c. Preferably, the auxiliary moving contact 320c is integrally formed, and is formed by bending a sheet of elastic metal into a V-shaped structure. The two side walls of the V-shaped structure are respectively the first part of the auxiliary moving contact bridge and the second part of the auxiliary moving contact bridge. The first part of the auxiliary moving contact bridge is shorter than the second part of the auxiliary moving contact bridge.

[0127] Preferably, Fig.18 As shown, the third module housing 30c includes a third guide rib, such as Figure 1 , 10 As shown in FIG. 11 , a guide groove is provided on the side wall of the module slot 20 , and the third guide rib cooperates with the guide groove.

[0128] Preferably, Figure 1 , 10 As shown in FIG. 11 , the module slot 20 is a slot in a U-shaped structure.

[0129] like Figure 3-6 21 shows the sixth embodiment of the leakage circuit breaker device of the present invention.

[0130] In the leakage circuit breaker device of this embodiment, the leakage circuit breaker 1 also includes a test button 13g, and the switch circuit of the leakage test circuit includes a first switch S1 and a second switch S2. The first switch S1 and the second switch S2 are both normally open switches and respectively cooperate with the operating mechanism 12b and the test button 13g. When the first handle 11b is waved to drive the operating mechanism 12b to operate and close the leakage circuit breaker 1, the operating mechanism 12b drives the first switch S1 to close; pressing the test button 13g drives the second switch S2 to close.

[0131] Preferably, Figure 3-6 As shown, the switch circuit includes a first conductive member 10g, a second conductive member 11g and a third conductive member 12g, the second conductive member 11g is driven to cooperate with the test button 13g, the second conductive member 11g and the first conductive member 10g constitute a second switch S2, the third conductive member 12g is driven to cooperate with the operating mechanism 12b, and the third conductive member 12g and the first conductive member 10g constitute a first switch S1. Further, as Figure 3-6 As shown, the second conductive member 11g and the third conductive member 12g are both torsion springs, one end of the second conductive member 11g and the third conductive member 12g are respectively fixed, and the other end is respectively driven and matched with the test button 13g and the operating mechanism 12b. Further, the second conductive member 11g and the third conductive member 12g are respectively sleeved on the spring fixing shaft of the first partition 1c, and the first conductive member 10g is fixed on the first partition 1c.

[0132] Preferably, Figure 3-6 21, one end of the third conductive member 12g is electrically connected to the incoming line terminal of the N-pole circuit, and the other end is driven and matched with the operating mechanism 12b; the leakage circuit breaker 1 also includes a circuit breaker circuit board 12e, one end of the second conductive member 11g is connected to the circuit breaker circuit board 12e, and the other end is driven and matched with the test button 13g. Further, the circuit breaker circuit board 12e and the N-pole circuit are located on the same side of the first partition 1c of the circuit breaker housing 1a.

[0133] Preferably, Figure 3 and 5 As shown, the operating mechanism 12b is driven and matched with the third conductive member 12g through the driving connecting rod 10d of the N-pole circuit. Figure 3 As shown, the third conductive member 12g is arranged on one side of the driving connecting rod 10d, and the third conductive member of the V-shaped structure of the third conductive member 12g is driven by the movable arm 123g and cooperates with the driving connecting rod 10d.

[0134] Preferably, Figure 6 As shown, the first conductive member 10g is an L-shaped conductive plate, including a first conductive member vertical portion 100g and a first conductive member horizontal portion 101g that cooperate with the third conductive member 12g; Figure 6 As shown, the second conductive member 11g is a torsion spring, including a second conductive member body 110g and a second conductive member horizontal arm 111g and a second conductive member vertical arm 112g respectively connected to the second conductive member body 110g, the second conductive member horizontal arm 111g cooperates with the first conductive member horizontal portion 101g, the second conductive member vertical arm 112g is an L-shaped structure, including a vertical arm vertical portion 1120g and a vertical arm horizontal portion 1121g, the two ends of the vertical arm vertical portion 1120g are respectively connected to the second conductive member body 110g and the vertical arm horizontal portion 1121g, and the free end of the vertical arm horizontal portion 1121g is connected to the circuit breaker circuit board 12e; as shown Figure 6 As shown, the third conductive member 12g includes a third conductive member body 120b and a third conductive member connecting arm 121g and a third conductive member passive arm 123g respectively connected to the third conductive member body 120g. The free end of the third conductive member connecting arm 121g is connected to the incoming line end of the N-pole circuit. The third conductive member passive arm 123g is a V-shaped structure, one end of which is connected to the third conductive member body 120g and the other end is matched with the first conductive member vertical portion 100g. The bending part of the V-shaped structure of the third conductive member active arm 123g is driven and matched with the driving connecting rod 10d. Further, as Figure 6 As shown, the third conductive member passive arm 123g includes a first passive arm portion 1231g, a second passive arm portion 1232g and a third passive arm portion 1233g which are connected in sequence, one end of the first passive arm portion 1231g is connected to the third conductive member body 120g, the first passive arm portion 1231g and the second passive arm portion 1232g are bent and connected to form a V-shaped structure, and the third passive arm portion 1233g is parallel to the vertical portion 100g of the first conductive member when in contact with it.

[0135] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A leakage circuit breaker device, characterized in that: The invention comprises a leakage circuit breaker (1), a function expansion base (2) arranged on one side of the leakage circuit breaker (1), and a shunt tripping module (3a) plugged with the function expansion base (2); the shunt tripping module (3a) comprises a shunt tripper (36a); the function expansion base (2) comprises a switch component (23b) driven and matched with the shunt tripper (36a); the leakage circuit breaker (1) comprises a leakage test circuit; the leakage test circuit comprises a test resistor R; the switch component (23b) and the test resistor R are connected in series between a phase pole circuit and an N pole circuit of the leakage circuit breaker (1); the shunt tripping module (3a) receives an external tripping signal to activate the shunt tripper (36a), drive the switch component (23b) to conduct, and open the leakage circuit breaker (1).

2. The leakage circuit breaker device according to claim 1, characterized in that: The shunt trip module (3a) further comprises a first power terminal (31a), and the function expansion base (2) further comprises a base power terminal (20b), and the first power terminal (31a) is plug-matched with the base power terminal (20b).

3. The leakage circuit breaker device according to claim 1, characterized in that: The shunt trip module (3a) further comprises a first signal terminal (34a), the function expansion base (2) further comprises a base signal component (25b), the base signal component (25b) comprises a base signal terminal (252b), and the first signal terminal (34a) and the base signal terminal (252b) are in contact and mating.

4. The leakage circuit breaker device according to claim 2, characterized in that: The first power terminal (31a) is a plug-type terminal, the base power terminal (20b) is an elastic clip-type conductive part; and the switch part (23b) is a normally open micro switch.

5. The leakage circuit breaker device according to claim 3, characterized in that: The first signal terminal (34a) is a contact plate type terminal, the base signal terminal (252b) is a spring sheet type terminal, and the first signal terminal (34a) and the base signal terminal (252b) are elastically contacted and matched.

6. The leakage circuit breaker device according to claim 3 or 5, characterized in that: The base signal component (25b) further comprises a base signal circuit board (250b) and a communication port (251b), wherein the communication port (251b) and the base signal terminal (252b) are respectively arranged on both sides of the base signal circuit board (250b).

7. The leakage circuit breaker device according to claim 2, characterized in that: The function expansion base (2) comprises a module slot (20) of a U-shaped structure, and a base power terminal (20b) and a switch element (23b) are respectively arranged at the bottom of the U-shaped structure of the module slot (20).

8. The leakage circuit breaker device according to claim 3, characterized in that: The function expansion base (2) comprises a module slot (20) of a U-shaped structure, and the base signal component (25b) is arranged on the side wall of the U-shaped structure of the module slot (20).

9. The leakage circuit breaker device according to claim 7 or 8, characterized in that: The shunt trip module (3a) comprises a first module cover (30a), the first module cover (30a) comprises a first guide rib (300a), a guide groove is provided on the side wall of the module slot (20), and the first guide rib (300a) and the guide groove are used in coordination.

10. The leakage circuit breaker device according to claim 9, characterized in that: The shunt trip module (3a) is inserted from the open end of the U-shaped structure of the module slot (20) or from one side of the U-shaped structure.

11. The leakage circuit breaker device according to claim 1, characterized in that: The shunt release module (3a) further comprises a first module housing (30a), a first module mounting plate (37a), a first power supply terminal (31a), a first signal terminal (34a) and a first module circuit board (38a); the first module mounting plate (37a) is fixedly arranged in the first module housing (30a); the first module circuit board (38a) and the shunt release (36a) are respectively arranged on the first module mounting plate (37a); the first power supply terminal (31a), the first signal terminal (34a) and the shunt release (36a) are respectively connected to the first module circuit board (38a).

12. The residual current circuit breaker device according to claim 1 or 2, characterized in that: The leakage circuit breaker (1) is a two-phase circuit breaker, comprising an L-pole circuit and an N-pole circuit, and the switch element (23b) and the test resistor R are connected in series between the L-pole circuit and the N-pole circuit.

13. The residual current circuit breaker device according to claim 12, characterized in that: The first power terminal (31a) of the shunt trip module (3a) comprises a first L-pole plug, a first N-pole plug and a first grounding plug, and the base power terminal (20b) of the function expansion base (2) comprises a grounding conductive part (200b), an L-pole conductive part (201b) and an N-pole conductive part (202b), which are respectively plugged with the first grounding plug, the first L-pole plug and the first N-pole plug, and the L-pole conductive part (201b) and the N-pole conductive part (202b) are respectively connected to the L-pole circuit and the N-pole circuit.

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