Leakage current trip mechanism and switch device

Abstract

The present invention relates to the field of low-voltage electrical appliances, and specifically relates to a leakage current trip mechanism and a switch device comprising same. In order to ensure that the leakage current trip mechanism can be successfully tripped when a leakage current fault occurs, in a leakage current trip device, during rotation of a push rod in a direction d1, a latch rod is driven to actuate so as to release latched engagement between the latch rod and a lever, an energy storage member releases energy and drives the lever to actuate, the lever is configured to drive the push rod to continue to rotate in the direction d1, and after the push rod rotates to a push rod trigger position, the push rod has a tendency of rotating in the direction d1 by means of an acting force applied by the energy storage member to the push rod via the lever; and after an operating mechanism is tripped, a second reset member drives the latch rod to reset and the push rod drives the lever to reset, such that the lever and the latch rod restore the latched engagement, and also, the lever enables the energy storage member to store energy. The leakage current trip mechanism and the switch device have a stable and reliable residual current protection function.

Description

Electric leakage tripping mechanism and switching device

[0001] The present application claims priority to Chinese Patent Application No. 202411381326.3, filed on September 30, 2024, the contents of which are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0002] The present application relates to the field of low-voltage electrical apparatus, in particular to an electric leakage tripping mechanism and a switching device comprising the same. BACKGROUND

[0003] The existing switching device with residual current protection function is usually provided with an operating mechanism, a magnetic tripping device and an intermediate transmission structure. The magnetic tripping device drives the operating mechanism to trip through the intermediate transmission structure when the leakage fault occurs in the circuit where the switching device is located, so as to realize the residual current protection function. The intermediate transmission structure is usually composed of two or more than two rods. Due to the influence of the cooperation gap between the rods of the operating mechanism and the intermediate transmission structure and the slight deformation of the rods under stress, the position of the tripping part (such as the transmission rod 10 shown in FIGS. 1, 3, 5-6) has a slight displacement when the operating mechanism is in the closed state relative to the position when the operating mechanism is in the open state. The magnetic tripping device must drive the tripping part to run through the slight displacement before it can push the mechanism tripping part. With the extension of the service time of the switching device, the slight displacement may gradually increase. After the magnetic tripping device trips, the pushing force of the top rod decreases with the increase of the stroke of the top rod. When the slight displacement is too large, the pushing force of the top rod of the magnetic tripping device decreases too much to push the mechanism tripping part, resulting in unstable residual current protection function. SUMMARY

[0004] The present application aims to overcome at least one of the defects of the prior art and provide an electric leakage tripping mechanism and a switching device comprising the same, which has stable and reliable residual current protection function.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0006] An electric leakage tripping mechanism comprising a magnetic tripping device, a push rod, a first reset part and an operating mechanism of a switching device; the operating mechanism drives the first reset part to store energy during the closing process; the magnetic tripping device comprises a top rod and is used to drive the top rod to pop out when the leakage fault occurs in the circuit where the switching device is located, the push rod is driven by the top rod to rotate along direction d1 to the push rod triggering position, and the push rod drives the operating mechanism to trip when or before the push rod reaches the push rod triggering position; after the operating mechanism trips, the first reset part releases energy to drive the push rod to rotate along direction d2, and the top rod is reset by the push rod; the direction d1 and the direction d2 are opposite directions;

[0007] The electric leakage tripping mechanism further comprises an energy storage mechanism, the energy storage mechanism comprising a snap-fitted locking lever and a lever, an energy storage member, and a second reset member; in the process of rotating the push rod in the direction d1, the locking lever is driven to act so as to release the snap-fitting between the locking lever and the lever, the energy storage member is released to drive the lever to act, the lever is used to drive the push rod to continue rotating in the direction d1, after the push rod rotates to the push rod triggering position, the energy storage member applies a force to the push rod through the lever so that the push rod has a tendency to rotate in the direction d1; after the operating mechanism is tripped, the second reset member drives the locking lever to reset and the push rod drives the lever to reset, so that the lever and the locking lever restore the snap-fitting, and the lever stores energy for the energy storage member.

[0008] Further, the locking lever is rotationally arranged, the second reset member makes the locking lever have a tendency to rotate in the direction d1; and / or, the lever is rotationally arranged, the energy storage member makes the lever have a tendency to rotate in the direction d2.

[0009] Further, the locking lever and the lever are respectively rotationally arranged, the rotation shaft directions of the locking lever and the lever are parallel and the same as the rotation shaft direction of the push rod.

[0010] Further, the locking lever comprises a locking lever fitting part, the lever comprises a lever fitting part, the push rod comprises a push rod driven arm, and the push rod driven arm is inserted between the locking lever fitting part and the lever fitting part; when the push rod is driven to rotate in the direction d1 by the push rod driven arm, the push rod driven arm presses the locking lever fitting part to drive the locking lever to rotate in the direction d2, so that the locking lever and the lever release the snap-fitting; in the process of switching to the tripped state after the operating mechanism is tripped, the second reset member drives the locking lever to rotate in the direction d1, the push rod is driven to rotate in the direction d2 by the first reset member and drives the lever to rotate in the direction d1 by pressing the lever fitting part through the push rod driven arm, so that the locking lever and the lever restore the snap-fitting.

[0011] Further, in the closed state of the operating mechanism, a first gap allowing the push rod driven arm to freely swing within a preset angle is arranged between the locking lever fitting part and the lever fitting part.

[0012] Further, when the push rod driven arm contacts the locking lever fitting part, the distance between the push rod driven arm and the push rod is ≤2.5 mm.

[0013] Further, the locking lever further comprises a locking lever main stem, the locking lever main stem comprising a locking lever snap surface; the lever further comprises a lever locking arm, the lever locking arm comprising a lever locking part, and the lever locking part abuts on the locking lever snap surface so as to make the locking lever and the lever snap-fitted.

[0014] Further, the operating mechanism is in the closed state, and the lever locking part abuts against the buckle lever clasp surface; the operating mechanism is in the open state, and a second gap is formed between the lever locking part and the buckle lever clasp surface.

[0015] Further, the buckle lever clasp surface is an arc surface, and the center of the arc surface coincides with the rotation center of the buckle lever; the lever locking part comprises a locking ridge; the operating mechanism is in the closed state, and the locking ridge abuts against the buckle lever clasp surface; the operating mechanism is in the open state, and a second gap is formed between the locking ridge and the buckle lever clasp surface.

[0016] Further, the buckle lever main body further comprises a first limiting surface and a second limiting surface, and the first limiting surface, the buckle lever clasp surface and the second limiting surface are sequentially arranged;

[0017] In the closed state of the operating mechanism, the lever locking part abuts against the buckle lever clasp surface, and the first limiting surface abuts against the lever locking part; in the open state of the operating mechanism, a second gap is formed between the lever locking part and the buckle lever clasp surface, and the first limiting surface abuts against the lever locking part; in the tripped state of the operating mechanism, the second limiting surface is opposite to the lever locking part.

[0018] Further, the lever locking part comprises a lever limiting surface, a lever clasp surface and a locking ridge, the lever limiting surface and the lever clasp surface are connected by bending, and the bending connection between the lever limiting surface and the lever clasp surface forms the locking ridge;

[0019] In the closed state of the operating mechanism, the locking ridge abuts against the buckle lever clasp surface, and the first limiting surface abuts against the lever limiting surface; in the open state of the operating mechanism, a second gap is formed between the locking ridge and the buckle lever clasp surface, and the first limiting surface abuts against the lever limiting surface; in the tripped state of the operating mechanism, the second limiting surface is opposite to the lever clasp surface.

[0020] Further, the buckle lever comprises a buckle lever mounting part, a buckle lever main body and a buckle lever cooperation part which are sequentially connected, the buckle lever is rotationally arranged through the buckle lever mounting part, the buckle lever main body cooperates with the lever clasp, and the buckle lever cooperation part cooperates with the push rod transmission.

[0021] Further, the buckle lever further comprises an annular table, and the annular table is arranged on one side of the buckle lever mounting part in the rotation shaft direction of the buckle lever; the second reset member is a torsion spring, a helical body of the torsion spring is sleeved on the annular table, one spring arm is fixedly arranged, and the other spring arm cooperates with the buckle lever.

[0022] Further, the lever comprises a lever mounting portion, a lever lock catch arm and a lever cooperation arm, the lever is rotatably arranged through the lever mounting portion, the lever lock catch arm comprises a lock catch arm connecting portion and a lever lock catch portion, the lever lock catch portion is used for buckling cooperation with the lock catch rod, one end of the lock catch arm connecting portion is connected with the lever mounting portion and the other end is connected with the lever lock catch portion, the lever cooperation arm comprises a cooperation arm connecting portion and a lever cooperation portion, the lever cooperation portion is used for transmission cooperation with the push rod, one end of the cooperation arm connecting portion is connected with the lever mounting portion and the other end is connected with the lever cooperation portion, the lever lock catch arm and the lever cooperation arm are sequentially arranged along the rotation direction of the lever.

[0023] Further, the lever further comprises a lever spring hook portion, the lever spring hook portion is arranged on one side of the lever lock catch arm in the rotation shaft direction of the lever; the energy storage member is a tension spring, one end of which is fixedly arranged and the other end of which is hung on the lever spring hook portion.

[0024] Further, the push rod further comprises a push rod main plate, a push rod mounting arm and a push rod driving arm, the push rod driving arm, the push rod main plate and the push rod mounting arm are sequentially connected, two groups of push rod mounting arms are oppositely and spacedly arranged along the rotation shaft direction of the push rod and are respectively connected with a pair of sides of the push rod main plate along the bending, the push rod is rotatably arranged through the push rod mounting arm, and the push rod driving arm is used for driving the operating mechanism to be tripped.

[0025] Further, the electric leakage release mechanism further comprises a lever, after the operating mechanism is tripped, the first reset member is released to drive the lever to rotate, the push rod is driven by the lever to rotate along the direction d2, and the top rod is driven by the push rod to reset; the operating mechanism drives the first reset member to store energy through the lever during the closing process; the rotation shaft directions of the push rod and the lever are parallel.

[0026] Further, the operating mechanism and the energy storage mechanism are sequentially arranged along the direction d3, the push rod and the lever are located between the operating mechanism and the energy storage mechanism along the direction d3; the push rod, the lever and the energy storage mechanism are located on one side of the magnetic release along the direction d4, and the top rod is movably arranged along the direction d4; the push rod, the lever, the energy storage mechanism and the magnetic release are located on the same side of the operating mechanism along the direction d3; the direction d3 and the direction d4 are perpendicular to each other, and the direction d3 and the direction d4 are both perpendicular to the rotation shaft directions of the push rod and the lever.

[0027] Further, the operating mechanism comprises a lock catch member and a trip catch member which are used in cooperation; the electric leakage release mechanism further comprises a transmission lever which is movably arranged along the direction d3, one end of the transmission lever is connected with the trip catch member in transmission and the other end is connected with the push rod in transmission.

[0028] A switch device comprising the electric leakage release mechanism.

[0029] Compared with the prior art, the electric leakage release mechanism of the present application not only rotates the push rod under the action of the top rod of the magnetic release device to drive the operating mechanism to release, but also uses the additional energy storage mechanism to apply force to the push rod, so as to ensure that the push rod can be moved to the push rod triggering position to drive the operating mechanism to release, thereby ensuring the reliability and stability of the residual current protection function of the switch device of the present application.

[0030] In addition, the first gap avoids the misdriving of the push rod to rotate the locking lever to disengage the locking lever from the lever, thereby improving the stability of the product.

[0031] In addition, when the push rod driven arm contacts the locking lever fitting part, the distance between the push rod driven arm and the top rod is ≤2.5 mm, so as to limit the distance between the push rod and the top rod when the operating mechanism is in the closed state to a small value, thereby increasing the force output by the top rod of the magnetic release device, and ensuring that the push rod can drive the locking lever to rotate under the action of the top rod to disengage the locking lever from the lever.

[0032] The switch device of the present application includes the electric leakage release mechanism, and the residual current protection function is stable and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0033] Fig. 1 is a projection view of the switch device of the present application, and the switch device is in the state that the operating mechanism is released and the contact system is not disconnected;

[0034] Fig. 2 is an enlarged view of part 14 of Fig. 1 of the present application;

[0035] Fig. 3 is a perspective structural schematic view of the switch device of the present application, and the switch device is in the state that the operating mechanism is released and the contact system is not disconnected;

[0036] Fig. 4 is an enlarged view of part 15 of Fig. 3 of the present application;

[0037] Fig. 5 is a partial view of the switch device of the present application in the closed state, showing the states of the push rod, the push rod, and the energy storage mechanism;

[0038] Fig. 6 is a partial view of the switch device of the present application in the open state, showing the states of the push rod, the push rod, and the energy storage mechanism;

[0039] Fig. 7 is a structural schematic view of the push rod of the present application;

[0040] Fig. 8 is a structural schematic view of the push rod of the present application;

[0041] Fig. 9 is a structural schematic view of the locking lever of the present application, wherein Fig. (91) is a structural schematic view of the locking lever in one perspective, and Fig. (92) is a structural schematic view of the locking lever in another perspective;

[0042] Fig. 10 is a structural schematic diagram of the lever of the present application;

[0043] Fig. 11 is a structural schematic diagram of the first reset member of the present application;

[0044] Fig. 12 is a structural schematic diagram of the second reset member of the present application;

[0045] Fig. 13 is a structural schematic diagram of the energy storage member of the present application;

[0046] Fig. 14 is a structural schematic diagram of the base of the present application;

[0047] Fig. 15 is a structural schematic diagram of the partition plate of the present application.

[0048] The reference signs are explained as follows: push rod 1, push rod main plate 101, push rod mounting arm 102, push rod mounting hole 1020, push rod driven arm 103, driven arm first section 1031, driven arm second section 1032, push rod driving arm 104; pusher 2, pusher mounting part 201, pusher mounting hole 2010, pusher intermediate part 202, pusher connecting part 203, pusher connecting hole 2030, pusher matching part 204; first reset member 3, first spiral body 300, first fixed arm 301, first matching arm 302; lock rod 4, lock rod mounting part 401, lock rod mounting hole 4010, lock rod main stem 402, lock rod matching part 403, first limiting surface 404, lock rod clasp surface 405, second limiting surface 406, annular platform 407; lever 5, lever mounting part 501, lever mounting hole 5010, lever lock arm 502, lock arm connecting part 5021, lever lock part 5022, lever limiting surface 50221, lever clasp surface 50222, lock edge 50223, lever matching arm 503, matching arm connecting part 5031, lever matching part 5032, lever spring hanging part 504; second reset member 6, second spiral body 600, second fixed arm 601, second matching arm 602; energy storage member 7, first hanging ear 701, second hanging ear 702; base 8, lever mounting column 805; partition plate 9, push rod mounting column 901, pusher mounting column 902, lock rod mounting column 904, lever positioning part 905, positioning rib 906, spring hanging column 907; transmission rod 10; operating mechanism 11, handle 1100, jump buckle member 1101, lock member 1102, first connecting rod 1103, second connecting rod 1104, rotating plate 1105; magnetic release 12, top rod 1201; pull rod 13. DETAILED DESCRIPTION

[0049] The following embodiments, which are further illustrated by the accompanying drawings, further illustrate the specific implementation of the switch device of the present application. The switch device of the present application is not limited to the description of the following embodiments.

[0050] The switch device of the present application is a switch device with residual current protection function, in particular, a residual current operated circuit breaker.

[0051] As shown in Figs. 1-15, an embodiment of the switch device of the present application is shown.

[0052] As shown in Figs. 1 and 3, the switch device of the embodiment comprises a device housing and an operating mechanism 11 and a contact system (not shown in the figures) disposed in the device housing, the contact system comprising a movable contact (not shown in the figures) and a static contact (not shown in the figures) used in cooperation, the operating mechanism 11 being in transmission connection with the movable contact to drive the movable contact to close and open the static contact, thereby to close and open the switch device. Further, the closing state of the operating mechanism 11 (i.e. the state of the operating mechanism 11 when the switch device is in the closing state) corresponds to the closing state of the switch device, and the opening state of the operating mechanism 11 (i.e. the state of the operating mechanism 11 when the switch device is in the opening state) corresponds to the opening state of the switch device.

[0053] As shown in Figs. 1 and 3, the length direction, the width direction and the height direction of the switch device of the embodiment are direction d3, direction d5 and direction d4 (in the present patent, direction d3 is represented by 53 in the figures, direction d5 is represented by 55 in the figures, and direction d4 is represented by 54 in the figures), and direction d3, direction d4 and direction d5 are perpendicular to each other.

[0054] As shown in Figs. 1, 3, 14-15, the device housing comprises a base 8 and a cover (not shown in the figures) relatively split together, and the base 8 and the cover are relatively disposed along direction d5.

[0055] As shown in FIG. 1 and FIG. 3, the operating mechanism 11 is realized by prior art, for example, the operating mechanism 11 is a cam-five-link mechanism, which comprises a handle 1100, a lock piece 1102, a jump piece 1101, a rotating plate 1105, a first link 1103 and a second link 1104, the handle 1100 is rotatably arranged on the device housing, the lock piece 1102 and the jump piece 1101 are snap-fitted, the jump piece 1101 is driven to rotate by an external force (for example, the external force can come from a top rod 1201 of a magnetic trip 12 described later) to make the jump piece 1101 and the lock piece 1102 disengage, thereby making the operating mechanism 11 trip. Further, the handle 1100 has a closing position, a tripping position and an opening position arranged in sequence along the rotating direction of the handle 1100; the handle 1100 is rotated to the closing position to drive the switch device of the embodiment to close; the handle 1100 is rotated to the opening position to drive the switch device of the embodiment to open; when the switch device of the embodiment trips (i.e. the operating mechanism 11 trips), the handle 1100 is rotated from the closing position to the tripping position; in the tripped state of the switch device of the embodiment, the handle 1100 is rotated from the tripping position to the opening position by an external force to make the switch device of the embodiment re-trip (i.e. the operating mechanism 11 re-trips, thereby making the jump piece 1101 and the lock piece 1102 of the operating mechanism 11 resume snap-fitting), after the switch device of the embodiment re-trips, the switch device switches to the opening state, i.e. the opening state is also the re-tripped state of the switch device of the embodiment.

[0056] Further, the jump piece 1101 is coaxially arranged with the rotating plate 1105, the rotating shaft directions of the handle 1100, the lock piece 1102, the jump piece 1101 and the rotating plate 1105 are all the same as the direction d5.

[0057] It should be pointed out that the operating mechanism 11 is not limited to the above-mentioned implementation, but can also adopt other forms (for example, a four-link operating mechanism), no matter what structure the operating mechanism 11 has, the operating mechanism 11 always comprises the snap-fitted lock piece 1102 and jump piece 1101.

[0058] As shown in FIG. 1 and FIG. 3, the switch device of the embodiment further comprises an electric leakage tripping mechanism, which comprises a magnetic tripping device 12, a push rod 1, a first reset member 3 and an operating mechanism 11; the push rod 1 is rotationally arranged (for example, rotationally arranged on the device housing); the operating mechanism 11 drives the first reset member 3 to store energy during closing; the magnetic tripping device 12 comprises a top rod 1201 and is used to drive the top rod 1201 to pop out when an electric leakage fault (i.e. a residual current) occurs in the circuit where the switch device is located, the push rod 1 is driven by the top rod 1201 to rotate along the direction d1 (in this patent, the direction d1 is represented by 51 in the figure, as shown in FIG. 5) to a push rod triggering position, the push rod 1 drives the operating mechanism 11 to trip when or before the push rod 1 reaches the push rod triggering position; that is, in the closed state of the operating mechanism 11 (i.e. the closed state of the operating mechanism 11), if an electric leakage fault occurs in the circuit where the switch device of the embodiment is located, the magnetic tripping device 12 drives the top rod 1201 to pop out, the top rod 1201 drives the push rod 1 to rotate, and the push rod 1 drives the operating mechanism 11 to trip when or before the push rod 1 reaches the push rod triggering position; after the operating mechanism 11 trips, the first reset member 3 releases energy to drive the push rod 1 to rotate, and the top rod 1201 is driven by the push rod 1 to reset; the direction d1 and the direction d2 (in this patent, the direction d1 is represented by 51 in the figure, and the direction d2 is represented by 52 in the figure, as shown in FIG. 5) are opposite directions. The position of the push rod 1 when the operating mechanism 11 trips (i.e. when the push rod 1 drives the tripping catch member 1101 to rotate to release the latching cooperation with the latching member 1102, at this time the operating mechanism 11 is in a critical state) is recorded as the first position; in an ideal case, the push rod 1 is arranged to trigger the operating mechanism 11 to trip when the push rod 1 rotates to the first position, that is, the push rod 1 drives the operating mechanism 11 to trip when the push rod 1 reaches the push rod triggering position, at this time the push rod triggering position is the first position; however, considering the machining error, matching error and / or wear (and / or deformation) caused by long-term use of each part of the operating mechanism 11, the push rod 1 is arranged to rotate a certain angle after triggering the operating mechanism 11 to trip to reach the push rod triggering position, that is, the push rod 1 can drive the operating mechanism 11 to trip before reaching the push rod triggering position, so as to ensure that the push rod 1 can reliably trigger the operating mechanism 11 to trip, therefore, the push rod 1 needs to rotate a preset angle after reaching the first position to reach the push rod triggering position.

[0059] Further, as shown in FIG. 1-6, the electric leakage tripping mechanism further comprises a push rod 2, which is rotationally arranged (for example, rotationally arranged on the device housing), and after the operating mechanism 11 is tripped, the first reset member 3 is released to drive the push rod 2 to rotate, the push rod 1 is driven by the push rod 2 to rotate in the direction d2, and the top rod 1201 is reset by the push rod 1; the operating mechanism 11 stores energy for the first reset member 3 through the push rod 2 during the closing process, that is, the operating mechanism 11 drives the push rod 2 to rotate during the closing process, and the first reset member 3 is simultaneously driven by the push rod 2 to store energy. Further, the rotation shaft direction of the push rod 1 and the push rod 2 are both parallel to the direction d5; the top rod 1201 is movably arranged in the direction d4.

[0060] Further, as shown in FIG. 1-6, the electric leakage tripping mechanism further comprises a push rod 2, which is rotationally arranged (for example, rotationally arranged on the device housing), and after the operating mechanism 11 is tripped, the first reset member 3 is released to drive the push rod 2 to rotate, the push rod 1 is driven by the push rod 2 to rotate in the direction d2, and the top rod 1201 is reset by the push rod 1; the operating mechanism 11 stores energy for the first reset member 3 through the push rod 2 during the closing process, that is, the operating mechanism 11 drives the push rod 2 to rotate during the closing process, and the first reset member 3 is simultaneously driven by the push rod 2 to store energy. Further, the rotation shaft direction of the push rod 1 and the push rod 2 are both parallel to the direction d5; the top rod 1201 is movably arranged in the direction d4.

[0061] Further, as shown in FIG. 1-6, the electric leakage tripping mechanism further comprises a push rod 2, which is rotationally arranged (for example, rotationally arranged on the device housing), and after the operating mechanism 11 is tripped, the first reset member 3 is released to drive the push rod 2 to rotate, the push rod 1 is driven by the push rod 2 to rotate in the direction d2, and the top rod 1201 is reset by the push rod 1; the operating mechanism 11 stores energy for the first reset member 3 through the push rod 2 during the closing process, that is, the operating mechanism 11 drives the push rod 2 to rotate during the closing process, and the first reset member 3 is simultaneously driven by the push rod 2 to store energy. Further, the rotation shaft direction of the push rod 1 and the push rod 2 are both parallel to the direction d5; the top rod 1201 is movably arranged in the direction d4.

[0062] Specifically, as shown in FIG. 1-6, the lever 2 has a lever first position and a lever second position arranged in sequence along the rotation direction of the lever 2; the push rod 1 has a push rod first position and a push rod third position (i.e. a push rod trigger position) arranged in sequence along the rotation direction of the push rod 1; as shown in FIG. 1-4, when the operating mechanism 11 is tripped and the contact system is not disconnected (i.e. when the jump buckle 1101 is rotated under the drive of the push rod 1 to release the buckle cooperation with the lock buckle 1102), the lever 2 is in the lever second position, and the push rod 1 is in the push rod third position under the action of the top rod 1201; as shown in FIG. 6, the switch device of the embodiment is in the open state, the lever 2 is in the lever first position, and the push rod 1 is in the push rod first position under the action of the lever 2 (for example, as shown in FIG. 6, the lever cooperation part 204 of the lever 2 presses the push rod drive arm 104 of the push rod 1, so that the push rod 1 is in the push rod first position); as shown in FIG. 5, the switch device of the embodiment is in the closed state, the lever 2 is in the lever second position, so that the lever 2 avoids the push rod 1, and prepares for the trip of the operating mechanism 11 under the drive of the top rod 1201; as shown in FIG. 5 and 6, the switch device of the embodiment is switched from the open state to the closed state, the operating mechanism 11 drives the lever 2 to rotate from the lever first position to the lever second position through the pull rod 13, and the lever 2 drives the first reset member 3 to store energy; as shown in FIG. 1-5, when the switch device of the embodiment is switched from the closed state to the state that the operating mechanism 11 is tripped and the contact system is not disconnected (i.e. when the jump buckle 1101 of the operating mechanism 11 is rotated under the drive of the push rod 1 to release the buckle cooperation with the lock buckle 1102), the top rod 1201 drives the push rod 1 to rotate to the push rod third position, the push rod 1 drives the operating mechanism 11 to trip (the jump buckle 1101 releases the buckle cooperation with the lock buckle 1102), and the lever 2 remains in the lever second position; as shown in FIG. 1-4 and 6, when the switch device of the embodiment is switched from the state that the operating mechanism 11 is tripped and the contact system is not disconnected to the open state, the rotating plate 1105 of the operating mechanism 11 avoids the pull rod 13, the first reset member 3 releases energy to drive the lever 2 to rotate from the lever second position to the lever first position, at the same time, the lever 2 drives the push rod 1 to rotate from the push rod third position to the push rod first position, and at the same time, the push rod 1 drives the top rod 1201 to reset.

[0063] Further, as shown in FIG. 1, 3, 14-15, the device housing further comprises a partition plate 9 arranged between the base 8 and the shell cover, the contact system is arranged between the base 8 and the partition plate 9, the partition plate 9 is arranged side by side with the operating mechanism 11 in the direction d3, the partition plate 9 and the magnetic trip are arranged side by side in the direction d4, the push rod 1 and the lever 2 are arranged between the partition plate 9 and the shell cover, and the operating mechanism 11 and the magnetic trip are arranged between the base 8 and the shell cover. Further, the transmission rod 10 and the pull rod 13 are arranged between the partition plate 9 and the shell cover.

[0064] Further, as shown in FIG. 1-6, 8, the push rod 1 comprises a push rod main plate 101, and a push rod mounting arm 102, a push rod driven arm 103, and a push rod driving arm 104 connected with the push rod main plate 101 respectively, the push rod 1 is rotationally arranged through the push rod mounting arm 102, the push rod driven arm 103, the push rod main plate 101, and the push rod driving arm 104 are connected in sequence, the push rod driven arm 103 is in transmission cooperation with the top rod 1201 of the magnetic trip unit 12, and the push rod driving arm 104 is in transmission cooperation with the transmission rod 10. Further, the two groups of push rod mounting arms 102 are respectively connected with a pair of side along the push rod main plate 101, the two groups of push rod mounting arms 102 are oppositely arranged along the direction d5, the push rod mounting arm 102 is rotationally arranged on the device shell, for example, one push rod mounting arm 102 is rotationally arranged on the push rod mounting column 901 of the partition plate 9 of the device shell, and the other push rod mounting arm 102 is rotationally arranged on the push rod mounting column 901 of the shell cover (not shown in the figure) of the device shell, the push rod mounting arm 102 is provided with a push rod mounting hole 1020, and the push rod mounting arm 102 is rotationally sleeved on the push rod mounting column 901 through the push rod mounting hole 1020.

[0065] As another embodiment of the push rod 1, it is a rod member with a certain thickness in the direction d5, a push rod rotating shaft is arranged in the middle of the rod member, and the two ends of the push rod rotating shaft are rotationally arranged on the device shell, or a push rod shaft hole is arranged in the middle of the rod member, and the push rod 1 is sleeved on the push rod rotating shaft fixedly arranged on the device shell through the push rod shaft hole.

[0066] Further, as shown in FIG. 1-6, 7, the push rod 1 comprises a push rod main plate 101, and a push rod mounting arm 102, a push rod driven arm 103, and a push rod driving arm 104 connected with the push rod main plate 101 respectively, the push rod 1 is rotationally arranged through the push rod mounting arm 102, the push rod driven arm 103, the push rod main plate 101, and the push rod driving arm 104 are connected in sequence, the push rod driven arm 103 is in transmission cooperation with the top rod 1201 of the magnetic trip unit 12, and the push rod driving arm 104 is in transmission cooperation with the transmission rod 10. Further, the two groups of push rod mounting arms 102 are respectively connected with a pair of side along the push rod main plate 101, the two groups of push rod mounting arms 102 are oppositely arranged along the direction d5, the push rod mounting arm 102 is rotationally arranged on the device shell, for example, one push rod mounting arm 102 is rotationally arranged on the push rod mounting column 901 of the partition plate 9 of the device shell, and the other push rod mounting arm 102 is rotationally arranged on the push rod mounting column 901 of the shell cover (not shown in the figure) of the device shell, the push rod mounting arm 102 is provided with a push rod mounting hole 1020, and the push rod mounting arm 102 is rotationally sleeved on the push rod mounting column 901 through the push rod mounting hole 1020.

[0067] Further, as shown in FIG. 1-6, 11, the first reset member 3 is a torsion spring, which includes a first spiral body 300 and two spring arms connected with the first spiral body 300 respectively, i.e. a first fixed arm 301 and a first matching arm 302. The first spiral body 300 is fixedly arranged (for example, arranged on a lever mounting column 805 on the base 8 of the device housing), the first fixed arm 301 is fixedly arranged (for example, fixedly arranged on the device housing), and the first matching arm 302 is in transmission cooperation with the lever cooperation part 204 of the lever 2. The first matching arm 302 and the push rod driven arm 103 of the push rod 1 are located on both sides of the lever cooperation part 204 respectively.

[0068] As other embodiments of the first reset member 3, it can be a compression spring, a tension spring or a spring sheet, etc.

[0069] As shown in FIG. 1-6, the leakage tripping mechanism further includes an energy storage mechanism, which includes a snap-fitted lock rod 4 and a lever 5, an energy storage member 7, and a second reset member 6. During the rotation of the push rod 1 along the direction d1, i.e. during the rotation of the push rod 1 along the direction d1 to the push rod trigger position driven by the top rod 1201, the lock rod 4 is driven to act to release the snap-fitted cooperation between the lock rod 4 and the lever 5, the energy storage member 7 releases energy to drive the lever 5 to act, and the lever 5 is used to drive the push rod 1 to rotate along the direction d1. After the push rod 1 rotates to the push rod trigger position, the push rod 1 has a tendency to rotate along the direction d1 by the force applied by the energy storage member 7 through the lever 5. The operating mechanism 11 is tripped when or before the push rod 1 reaches the push rod trigger position. During the process of switching to the tripped state after the operating mechanism 11 is tripped (i.e. during the process of the trip release member 1101 and the lock member 1102 of the operating mechanism 11 releasing the snap-fitted cooperation, and the rotating plate 1105 driving the movable contact to act to the movable contact open position), the second reset member 6 drives the lock rod 4 to reset and the push rod 1 drives the lever 5 to reset, so that the lever 5 and the lock rod 4 restore the snap-fitted cooperation, and the lever 5 stores energy for the energy storage member 7. Specifically, during the process of switching to the tripped state after the operating mechanism 11 is tripped, the rotating plate 1105 rotates to avoid the pull rod 13, the first reset member 3 releases energy to drive the lever 2 to rotate, the push rod 1 is driven by the lever 2 to rotate to drive the top rod 1201 to reset, at the same time, the push rod 1 drives the lever 5 to reset and the lever 5 stores energy for the energy storage member 7, the push rod 1 avoids the lock rod 4, the second reset member 6 releases energy to drive the lock rod 4 to reset, and the lever 5 and the lock rod 4 reset to restore the snap-fitted cooperation. Further, as shown in FIG. 1 and 3, the lock rod 4 is arranged between the partition plate 9 and the cover of the device housing, and the lever 5 is arranged between the base 8 and the cover.

[0070] The force condition during the process of the push rod 1 rotating to the push rod trigger position is as follows:

[0071] Case one, the push rod 1 rotates to the push rod trigger position only under the action of the top rod 1201 of the magnetic release 12, the lever 5 simultaneously acts under the action of the energy storage member 7, and after the push rod 1 reaches the push rod trigger position, the lever 5 contacts the push rod 1, the energy storage member 7 applies force to the push rod 1 through the lever 5 to make the push rod 1 have a tendency to rotate in the direction d1. Case two, the push rod 1 rotates to the push rod trigger position under the double actions of the top rod 1201 of the magnetic release 12 and the force applied to the push rod 1 by the energy storage member 7 through the lever 5, and after the push rod 1 reaches the push rod trigger position, the energy storage member 7 still applies force to the push rod 1 through the lever 5 to make the push rod 1 have a tendency to rotate in the direction d1. Case three, the push rod 1 rotates in the direction d1 under the action of the top rod 1201 of the magnetic release 12, but the push rod 1 is not enough to rotate to the trigger operating mechanism 11 tripping under the action of the top rod 1201 of the magnetic release 12, the energy storage member 7 applies force to the push rod 1 through the lever 5 to drive the push rod 1 to rotate to the trigger operating mechanism 11 tripping and finally to the push rod trigger position, and after the push rod 1 reaches the push rod trigger position, the energy storage member 7 still applies force to the push rod 1 through the lever 5 to make the push rod 1 have a tendency to rotate in the direction d1.

[0072] Compared with the prior art, the leakage release mechanism, the push rod 1 not only rotates under the action of the top rod 1201 of the magnetic release 12 for driving the operating mechanism 11 to trip, but also has an additional energy storage mechanism for applying force to the push rod 1, so as to ensure that the push rod 1 can act to the push rod trigger position to drive the operating mechanism to trip, thereby ensuring the reliability and stability of the residual current protection function of the switch device of the embodiment.

[0073] Further, as shown in FIGS. 1-6, the locking rod 4 is rotationally arranged, and the second reset member 6 makes the locking rod 4 have a tendency to rotate in the direction d1; and / or, the lever 5 is rotationally arranged, and the energy storage member 7 makes the lever 5 have a tendency to rotate in the direction d2.

[0074] In the switch device of the embodiment, the locking rod 4 and the lever 5 are respectively rotationally arranged, and the directions of the rotation axes of the locking rod 4 and the lever 5 are parallel; in the process that the push rod 1 rotates in the direction d1, the locking rod 4 is driven to rotate in the direction d2 to make the locking rod 4 and the lever 5 disengage, the energy storage member 7 releases energy to drive the lever 5 to rotate in the direction d2, and the lever 5 drives the push rod 1 to rotate in the direction d1. Further, the directions of the rotation axes of the locking rod 4 and the lever 5 are the same as the directions of the rotation axes of the push rod 1 and the push rod 2, which are all the direction d5.

[0075] As other embodiments of the action modes of the locking rod 4 and the lever 5, the locking rod 4 is movably arranged as a whole, and the lever 5 is rotationally arranged; or, the locking rod 4 is rotationally arranged, and the lever 5 is movably arranged as a whole; or, the locking rod 4 and the lever 5 are respectively movably arranged as a whole.

[0076] Further, as shown in FIG. 1-6, the lock bar 4 comprises a lock bar matching part 403, the lever 5 comprises a lever matching part 5032, and the push rod 1 comprises a push rod driven arm 103, which is inserted between the lock bar matching part 403 and the lever matching part 5032. When the push rod 1 rotates in the direction d1, the push rod driven arm 103 presses against the lock bar matching part 403 to drive the lock bar 4 to rotate in the direction d2, so that the lock bar 4 and the lever 5 are uncoupled, and the push rod 1 continues to rotate in the direction d2 through the lock bar matching part 403 until the push rod 1 reaches the push rod trigger position, while the lock bar 4 stores energy for the second reset member 6, and the energy storage member 7 releases energy to drive the lever 5 to rotate in the direction d2 until the push rod 1 reaches the push rod trigger position. During the process of switching to the tripped state after the operating mechanism 11 is tripped (after the catch member 1101 and the lock member 1102 of the operating mechanism 11 are uncoupled), i.e. during the process of switching from the critical state to the tripped state of the operating mechanism 11, the second reset member 6 drives the lock bar 4 to rotate in the direction d1, and the push rod 1 is driven by the first reset member 3 to rotate in the direction d2 and press against the lever matching part 5032 through the push rod driven arm 103 to drive the lever 5 to rotate in the direction d1, so that the lock bar 4 and the lever 5 are coupled again. That is, during the process of switching to the tripped state after the operating mechanism 11 is tripped, the push rod driven arm 103 avoids the lock bar matching part 403, so that the lock bar 4 rotates in the direction d1 under the drive of the second reset member 6, and the lock bar 4 is reset, at the same time, the push rod driven arm 103 presses against the lever matching part 5032 to drive the lever 5 to rotate in the direction d1, so that the lever 5 is reset and the lever 5 stores energy for the energy storage member 7, and finally the lock bar 4 and the lever 5 are coupled again. Further, the lock bar matching part 403 and the lever matching part 5032 each comprise a circular arc matching surface, which cooperates with the two sides of the push rod driven arm 103, which is beneficial to reduce the friction when the lock bar matching part 403, the lever matching part 5032 and the push rod driven arm 103 are coupled.

[0077] As other embodiments of the lock bar matching part 403 and the lever matching part 5032, both of them can also be provided with a pointed protrusion which cooperates with the push rod driven arm 103.

[0078] Further, as shown in FIG. 1-6, the first gap between the lock rod matching part 403 and the lever matching part 5032 allows the push rod driven arm 103 to swing freely within a preset angle, thus avoiding the switch device of the present embodiment from being misdriven by vibration, causing the push rod 1 to drive the lock rod 4 to rotate and thus to release the lock rod 4 from the snap-fit with the lever 5, thus improving the stability of the product. Further, the push rod 1 also has a push rod second position, the push rod first position, the push rod second position and the push rod third position being arranged in sequence along the rotation direction of the push rod 1; as shown in FIG. 5, the operating mechanism 11 is in the closed state, the push rod 1 is in the push rod second position, and the push rod 1 can rotate freely between the push rod first position and the push rod second position; the push rod 1 is in contact with the lock rod matching part 403 when in the push rod second position. When the operating mechanism 11 is in the closed state and the push rod 1 is in the push rod first position (the push rod driven arm 103 is in contact with the top rod 1201), the magnetic release 12 is actuated to drive the push rod driven arm 103 to first pass through the first gap and be in contact with the lock rod matching part 403, and then to drive the lock rod 4 to rotate and release the snap-fit with the lever 5.

[0079] Further, as shown in FIG. 5, when the push rod driven arm 103 of the push rod 1 is in contact with the lock rod matching part 403 (i.e. when the push rod 1 is in the push rod second position), the distance between the push rod driven arm 103 and the top rod 1201 is ≤2.5mm, thus limiting the maximum distance between the push rod 1 and the top rod 1201 when the operating mechanism 11 is in the closed state to a smaller value, thus increasing the force output by the top rod 1201 of the magnetic release 12, and ensuring that the push rod 1 can drive the lock rod 4 to rotate and release the snap-fit with the lever 5 under the action of the top rod 1201.

[0080] Further, as shown in FIG. 1-6, 8, the push rod driven arm 103 of the push rod 1 comprises a first driven arm segment 1031 and a second driven arm segment 1032 connected by bending, the push rod main plate 101, the first driven arm segment 1031 and the second driven arm segment 1032 of the push rod 1 being connected in sequence, the first driven arm segment 1031 being in transmission cooperation with the lock rod matching part 403 of the lock rod 4, and the second driven arm segment 1032 being in transmission cooperation with the lever matching part 5032 of the lever 5. Further, the push rod main plate 101 is coplanar with the first driven arm segment 1031.

[0081] Further, as shown in Figs. 1-6, 9-10, the locking lever 4 further comprises a locking lever stem 402, which is provided with a locking lever clasp surface 405; the lever 5 further comprises a lever locking arm 502, which comprises a lever locking portion 5022, which abuts against the locking lever clasp surface 405 to make the locking lever 4 and the lever 5 clasp together. Further, in the closed state of the operating mechanism 11, the lever locking portion 5022 abuts against the locking lever clasp surface 405; in the open state of the operating mechanism 11, a second gap is formed between the lever locking portion 5022 and the locking lever clasp surface 405, i.e., when the operating mechanism is reclosed, the lever 5 rotates under the drive of the push rod 1, and the lever locking portion 5022 rotates past the locking lever clasp surface 405 and then rotates by a preset angle, and a second gap is formed between the lever locking portion 5022 and the locking lever clasp surface 405, thereby ensuring that when the operating mechanism 11 is reclosed, the locking lever 4 and the lever 5 can reliably restore the clasp together, and the reliable and stable operation of the energy storage mechanism is ensured. Further, the locking lever clasp surface 405 is a circular arc surface, the center of which coincides with the rotation center of the locking lever 4; the lever locking portion 5022 comprises a locking edge 50223; in the closed state of the operating mechanism 11, the locking edge 50223 abuts against the locking lever clasp surface 405; in the open state of the operating mechanism 11, a second gap is formed between the locking edge 50223 and the locking lever clasp surface 405. The locking lever clasp surface 405 is provided as a circular arc surface, so that the force of the locking edge 50223 against the locking lever clasp surface 405 passes through the rotation center of the locking lever 4, thereby reducing the tripping force between the locking lever 4 and the lever 5.

[0082] Specifically, as shown in FIG. 9, the lock bar stem 402 further comprises a first limiting surface 404 and a second limiting surface 406, the first limiting surface 404, the lock bar clasp surface 405 and the second limiting surface 406 are sequentially arranged; as shown in FIG. 5, in the closed state of the operating mechanism 11, the lever lock portion 5022 abuts against the lock bar clasp surface 405 and the first limiting surface 404 abuts against the lever lock portion 5022 to prevent the lock bar 4 from continuing to rotate in the direction d1; as shown in FIG. 6, in the open state of the operating mechanism 11, a second gap is formed between the lever lock portion 5022 and the lock bar clasp surface 405 and the first limiting surface 404 abuts against the lever lock portion 5022; as shown in FIGS. 1-2, in the tripped state of the operating mechanism 11, the second limiting surface 406 is opposite to the lever lock portion 5022. Further, as shown in FIG. 10, the lever lock portion 5022 comprises a lever limiting surface 50221, a lever clasp surface 50222 and a lock bar ridge 50223, the lever limiting surface 50221 and the lever clasp surface 50222 are connected by bending, and the bending connection portions of the two form the lock bar ridge 50223; in the closed state of the operating mechanism 11, the lock bar ridge 50223 abuts against the lock bar clasp surface 405 and the first limiting surface 404 abuts against the lever limiting surface 50221; in the open state of the operating mechanism 11, a second gap is formed between the lock bar ridge 50223 and the lock bar clasp surface 405 and the first limiting surface 404 abuts against the lever limiting surface 50221, the lever clasp surface 50222 is opposite to and spaced apart from the lock bar clasp surface 405; in the tripped state of the operating mechanism 11, the second limiting surface 406 is opposite to the lever clasp surface 50222.

[0083] As another embodiment of the lock bar clasp surface 405, the lock bar clasp surface 405 is a flat surface.

[0084] As another embodiment of the lever lock portion 5022, the lever lock portion 5022 is not provided with the lock bar ridge 50223, but is provided with an arc-shaped protrusion for clasp cooperation with the lock bar clasp surface 405, and the linear contact of the two can also be achieved.

[0085] As another embodiment of the lever lock portion 5022, the lever lock portion 5022 is not provided with the lever clasp surface 50222, but is provided with a wedge-shaped protrusion, the tip of the wedge-shaped protrusion abuts against the lock bar clasp surface 405 to achieve the clasp cooperation of the lock bar 4 and the lever 5.

[0086] As another embodiment of the snap-fitting of the snap lever snap surface 405 and the lever snap surface 50222, the snap lever snap surface 405 and the lever snap surface 50222 abut to realize the snap-fitting of the snap lever 4 and the lever 5, but due to the machining precision of the parts and / or the matching error, etc., it is difficult to realize the complete parallel abutment of the snap lever snap surface 405 and the lever snap surface 50222 in actual situation.

[0087] Further, as shown in FIGS. 1-6 and 9, the snap lever 4 further comprises a snap lever mounting portion 401, the snap lever mounting portion 401, the snap lever main stem 402 and the snap lever matching portion 403 are sequentially connected, the snap lever 4 is rotationally arranged through the snap lever mounting portion 401, the snap lever main stem 402 is snap-fitted with the lever 5 (the specific matching mode of the two is described above), and the snap lever matching portion 403 is transmissionally matched with the push rod 1 (the specific matching mode of the two is described above). Further, as shown in FIGS. 1-6 and 14, the snap lever mounting portion 401 comprises a snap lever mounting hole 4010, the device housing comprises a snap lever mounting column 904, and the snap lever mounting portion 401 is rotationally sleeved on the snap lever mounting column 904 through the snap lever mounting hole 4010.

[0088] Further, as shown in FIGS. 1-6 and 12, the snap lever 4 further comprises an annular table 407, which is arranged on one side of the snap lever mounting portion 401 in the rotation axis direction (i.e. direction d5) of the snap lever 4; the second reset member 6 is a torsion spring, the helical body (second helical body 600) of the torsion spring is sleeved on the annular table 407, one spring arm is fixedly arranged (for example, fixedly arranged on the partition plate 9 of the device housing, specifically, the spring arm abuts against the positioning rib 906 of the partition plate 9) and is a second fixed arm 601, and the other spring arm is matched with the snap lever 4 (the spring arm is matched with the snap lever main stem 402 of the snap lever 4) and is a second matching arm 602. Further, the center hole of the annular table 407 is in communication with the snap lever mounting hole 4010.

[0089] As another embodiment of the second reset member 6, it is a compression spring, a tension spring or a spring plate, etc.

[0090] Further, as shown in FIG. 1-6, 10, the lever 5 further comprises a lever mounting portion 501, the lever 5 is rotatably arranged through the lever mounting portion 501 (for example, the lever mounting portion 501 is provided with a lever mounting hole 5010, the lever mounting portion 501 is rotatably arranged on the lever mounting column 805 of the base 8 through the lever mounting hole 5010), the lever locking arm 502 comprises a locking arm connecting portion 5021 and a lever locking portion 5022, the lever locking portion 5022 is used for buckling cooperation with the locking rod 4 (the specific cooperation manner of the two is described above), the locking arm connecting portion 5021 is connected with the lever mounting portion 501 at one end and connected with the lever locking portion 5022 at the other end, the lever cooperation arm 503 comprises a cooperation arm connecting portion 5031 and a lever cooperation portion 5032, the lever cooperation portion 5032 is used for transmission cooperation with the push rod 1 (the specific cooperation manner of the two is described above), the cooperation arm connecting portion 5031 is connected with the lever mounting portion 501 at one end and connected with the lever cooperation portion 5032 at the other end, the lever locking arm 502 and the lever cooperation arm 503 are both arranged on the circumferential side of the lever mounting portion 501 and sequentially arranged along the rotation direction of the lever 5. Further, the lever locking arm 502 and the lever cooperation arm 503 are integrally distributed in a V shape.

[0091] Further, as shown in FIG. 1-6, 10, the lever 5 further comprises a lever mounting portion 501, the lever 5 is rotatably arranged through the lever mounting portion 501 (for example, the lever mounting portion 501 is provided with a lever mounting hole 5010, the lever mounting portion 501 is rotatably arranged on the lever mounting column 805 of the base 8 through the lever mounting hole 5010), the lever locking arm 502 comprises a locking arm connecting portion 5021 and a lever locking portion 5022, the lever locking portion 5022 is used for buckling cooperation with the locking rod 4 (the specific cooperation manner of the two is described above), the locking arm connecting portion 5021 is connected with the lever mounting portion 501 at one end and connected with the lever locking portion 5022 at the other end, the lever cooperation arm 503 comprises a cooperation arm connecting portion 5031 and a lever cooperation portion 5032, the lever cooperation portion 5032 is used for transmission cooperation with the push rod 1 (the specific cooperation manner of the two is described above), the cooperation arm connecting portion 5031 is connected with the lever mounting portion 501 at one end and connected with the lever cooperation portion 5032 at the other end, the lever locking arm 502 and the lever cooperation arm 503 are both arranged on the circumferential side of the lever mounting portion 501 and sequentially arranged along the rotation direction of the lever 5. Further, the lever locking arm 502 and the lever cooperation arm 503 are integrally distributed in a V shape.

[0092] As other embodiments of the energy storage member 7, it is a compression spring, a torsion spring or a spring sheet, etc.

[0093] Further, as shown in FIG. 1-6, 10, the lever 5 further comprises a lever mounting portion 501, the lever 5 is rotatably arranged through the lever mounting portion 501 (for example, the lever mounting portion 501 is provided with a lever mounting hole 5010, the lever mounting portion 501 is rotatably arranged on the lever mounting column 805 of the base 8 through the lever mounting hole 5010), the lever locking arm 502 comprises a locking arm connecting portion 5021 and a lever locking portion 5022, the lever locking portion 5022 is used for buckling cooperation with the locking rod 4 (the specific cooperation manner of the two is described above), the locking arm connecting portion 5021 is connected with the lever mounting portion 501 at one end and connected with the lever locking portion 5022 at the other end, the lever cooperation arm 503 comprises a cooperation arm connecting portion 5031 and a lever cooperation portion 5032, the lever cooperation portion 5032 is used for transmission cooperation with the push rod 1 (the specific cooperation manner of the two is described above), the cooperation arm connecting portion 5031 is connected with the lever mounting portion 501 at one end and connected with the lever cooperation portion 5032 at the other end, the lever locking arm 502 and the lever cooperation arm 503 are both arranged on the circumferential side of the lever mounting portion 501 and sequentially arranged along the rotation direction of the lever 5. Further, the lever locking arm 502 and the lever cooperation arm 503 are integrally distributed in a V shape.

[0094] Specifically, the lever positioning portion 905 is arranged on the partition plate 9 of the device housing, and the lever positioning portion 905 is limitingly matched with the lever locking arm 502 of the lever 5. Further, the lever positioning portion 905 is limitingly matched with the locking arm connecting portion 5021 of the lever locking arm 502.

[0095] As shown in FIG. 1 and 3, it is one layout mode of the switch device of the embodiment.

[0096] The operating mechanism 11 and the energy storage mechanism are sequentially arranged along the direction d3, the handle 1100 of the operating mechanism 11 and the energy storage mechanism are located at two ends of the device shell along the direction d3, the push rod 1 and the push rod 2 are located between the operating mechanism 11 and the energy storage mechanism along the direction d3; the push rod 1, the push rod 2 and the energy storage mechanism are located on one side of the magnetic tripper 12 along the direction d4, the top rod 1201 is movably arranged along the direction d4; the push rod 1, the push rod 2, the energy storage mechanism and the magnetic tripper 12 are located on the same side of the operating mechanism 11 along the direction d3; the energy storage piece 7 and the lever 5 are located on the same side of the locking rod 4 along the direction d3; the energy storage piece 7 and the magnetic tripper 12 are respectively located on two sides of the lever 5 along the direction d4; the locking rod 4 and the magnetic tripper 12 are respectively located on two sides of the push rod 1 along the direction d4; the rotation shaft directions of the push rod 1, the push rod 2, the locking rod 4 and the lever 5 are the same as the direction d5; the transmission rod 10 and the pull rod 13 are movably arranged along the direction d4.

[0097] It should be noted that, in the description of the present application, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when in use, and are only for the convenience of description, and do not indicate that the device or element referred to must have a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating relative importance.

[0098] The above is a further detailed description of the present application in combination with specific preferred embodiments, and cannot be considered as a limitation on the specific implementation of the present application. For ordinary skilled persons in the technical field to which the present application belongs, a number of simple deductions or replacements can be made without departing from the concept of the present application, and all of them should be considered as falling within the protection scope of the present application.

Claims

1. An electric leakage tripping mechanism, comprising a magnetic tripping device (12), a push rod (1), a first reset member (3), and an operating mechanism (11) of a switching device; the operating mechanism (11) drives the first reset member (3) to store energy during closing; the magnetic tripping device (12) comprises a top rod (1201) and is used to drive the top rod (1201) to pop out when an electric leakage fault occurs in a circuit in which the switching device is located, the push rod (1) is driven by the top rod (1201) to rotate in a direction d1 to a push rod triggering position, and the push rod (1) drives the operating mechanism (11) to trip when or before the push rod (1) reaches the push rod triggering position; after the operating mechanism (11) trips, the first reset member (3) drives the push rod (1) to rotate in a direction d2, and the top rod (1201) is driven by the push rod (1) to reset; the direction d1 and the direction d2 are opposite directions. characterized in that The electric leakage tripping mechanism further comprises an energy storage mechanism, which comprises a snap-fitted locking rod (4) and a lever (5), an energy storage member (7), and a second reset member (6); during the rotation of the push rod (1) in the direction d1, the locking rod (4) is driven to act to disengage the locking rod (4) from the lever (5), the energy storage member (7) is released to drive the lever (5) to act, and the lever (5) is used to drive the push rod (1) to continue to rotate in the direction d1; after the operating mechanism (11) trips, the second reset member (6) drives the locking rod (4) to reset and the push rod (1) drives the lever (5) to reset, so that the lever (5) and the locking rod (4) are restored to be snap-fitted, and the lever (5) stores energy for the energy storage member (7).

2. The electrical leakage trip unit of claim 1, wherein: The locking rod (4) is rotationally arranged, and the second reset member (6) causes the locking rod (4) to have a tendency to rotate in the direction d1; and / or the lever (5) is rotationally arranged, and the energy storage member (7) causes the lever (5) to have a tendency to rotate in the direction d2.

3. The electrical leakage trip unit of claim 2, wherein: The locking rod (4) and the lever (5) are respectively rotationally arranged, and the directions of rotation axes of the locking rod (4) and the lever (5) are parallel to and the same as the direction of a rotation axis of the push rod (1).

4. The electrical leakage trip unit of claim 3, wherein: The locking lever (4) comprises a locking lever matching part (403), the lever (5) comprises a lever matching part (5032), the push rod (1) comprises a push rod driven arm (103), the push rod driven arm (103) is interposed between the locking lever matching part (403) and the lever matching part (5032); when the top rod (1201) drives the push rod (1) to rotate along the direction d1, the push rod driven arm (103) drives the locking lever (4) to rotate along the direction d2 by pressing the locking lever matching part (403), so that the locking lever (4) and the lever (5) are uncoupled; in the process of switching to the tripped state after the operating mechanism (11) is tripped, the second reset member (6) drives the locking lever (4) to rotate along the direction d1, the push rod (1) is driven by the first reset member (3) to rotate along the direction d2 and drives the lever (5) to rotate along the direction d1 by pressing the lever matching part (5032) through the push rod driven arm (103), so that the locking lever (4) and the lever (5) are coupled again.

5. The electrical leakage trip unit of claim 4, wherein: The operating mechanism (11) is in the closed state, and a first gap is arranged between the locking lever matching part (403) and the lever matching part (5032) to allow the push rod driven arm (103) to swing freely within a preset angle.

6. The electrical leakage trip unit of claim 5, wherein: When the push rod driven arm (103) is in contact with the locking lever matching part (403), the distance between the push rod driven arm (103) and the top rod (1201) is less than or equal to 2.5 mm.

7. The electrical leakage trip unit of claim 3, wherein: The locking lever (4) further comprises a locking lever main stem (402), and the locking lever main stem (402) comprises a locking lever buckle surface (405); the lever (5) further comprises a lever locking arm (502), and the lever locking arm (502) comprises a lever locking part (5022); the lever locking part (5022) is abutted against the locking lever buckle surface (405) to couple the locking lever (4) and the lever (5).

8. The electrical leakage trip unit of claim 7, wherein: The operating mechanism (11) is in the closed state, and the lever locking part (5022) is abutbed against the locking lever buckle surface (405); the operating mechanism (11) is in the open state, and a second gap is formed between the lever locking part (5022) and the locking lever buckle surface (405).

9. The electrical leakage trip unit of claim 8, wherein: The locking lever main stem (402) further comprises a first limiting surface (404) and a second limiting surface (406), and the first limiting surface (404), the locking lever buckle surface (405) and the second limiting surface (406) are sequentially arranged. The operating mechanism (11) is in the closed state, the lever locking part (5022) is abutted against the locking lever buckle surface (405), and the first limiting surface (404) is abutted against the lever locking part (5022); the operating mechanism (11) is in the open state, a second gap is formed between the lever locking part (5022) and the locking lever buckle surface (405), and the first limiting surface (404) is abutted against the lever locking part (5022); the operating mechanism (11) is in the tripped state, and the second limiting surface (406) is opposite to the lever locking part (5022).

10. The electrical leakage trip unit of claim 3, wherein: The lock rod (4) comprises a lock rod mounting portion (401), a lock rod main stem (402) and a lock rod matching portion (403) connected in sequence, the lock rod (4) is rotationally arranged through the lock rod mounting portion (401), the lock rod main stem (402) is snap-fitted with the lever (5), and the lock rod matching portion (403) is transmissionally matched with the push rod (1).

11. The electrical leakage trip mechanism of claim 10, wherein: The lock rod (4) further comprises an annular table (407) arranged on one side of the lock rod mounting portion (401) in the rotation axis direction of the lock rod (4); the second reset member (6) is a torsion spring, the helical body of the torsion spring is sleeved on the annular table (407), one spring arm is fixedly arranged, and the other spring arm is matched with the lock rod (4).

12. The electrical leakage trip unit of claim 4, wherein: The lever (5) comprises a lever mounting portion (501), a lever lock arm (502) and a lever matching arm (503), the lever (5) is rotationally arranged through the lever mounting portion (501), the lever lock arm (502) comprises a lock arm connecting portion (5021) and a lever lock portion (5022), the lever lock portion (5022) is used for snap-fitting with the lock rod (4), one end of the lock arm connecting portion (5021) is connected with the lever mounting portion (501) and the other end is connected with the lever lock portion (5022), the lever matching arm (503) comprises a matching arm connecting portion (5031) and a lever matching portion (5032), the lever matching portion (5032) is used for transmissionally matching with the push rod (1), one end of the matching arm connecting portion (5031) is connected with the lever mounting portion (501) and the other end is connected with the lever matching portion (5032), and the lever lock arm (502) and the lever matching arm (503) are arranged in sequence along the rotation direction of the lever (5). The lever (5) further comprises a lever spring hanging portion (504) arranged on one side of the lever lock arm (502) in the rotation axis direction of the lever (5); the energy storage member (7) is a tension spring, one end of the tension spring is fixedly arranged and the other end is hung on the lever spring hanging portion (504).

13. The electrical leakage trip unit of claim 4, wherein: The push rod (1) further comprises a push rod main plate (101), a push rod mounting arm (102) and a push rod driving arm (104), the push rod driven arm (103), the push rod main plate (101) and the push rod driving arm (104) are connected in sequence, two groups of push rod mounting arms (102) are oppositely and intervally arranged along the rotation axis direction of the push rod (1) and are respectively connected with a pair of sides of the push rod main plate (101) along the bending, the push rod (1) is rotationally arranged through the push rod mounting arm (102), and the push rod driving arm (104) is used for driving the operating mechanism (11) to be tripped.

14. The electrical leakage trip unit of claim 1, wherein: The electric leakage tripping mechanism further comprises a push rod (2), after the operating mechanism (11) is tripped, the first reset member (3) is released to drive the push rod (2) to rotate, the push rod (1) is driven by the push rod (2) to rotate along the direction d2, and the top rod (1201) is driven by the push rod (1) to reset; the operating mechanism (11) drives the first reset member (3) to store energy through the push rod (2) in the closing process; the rotation axis directions of the push rod (1) and the push rod (2) are parallel. The operating mechanism (11) and the energy storage mechanism are sequentially arranged along a direction d3, the push rod (1) and the push lever (2) are located between the operating mechanism (11) and the energy storage mechanism along the direction d3; the push rod (1), the push lever (2) and the energy storage mechanism are located on one side of the magnetic release (12) along a direction d4, the top rod (1201) is movably arranged along the direction d4; the push rod (1), the push lever (2), the energy storage mechanism and the magnetic release (12) are located on the same side of the operating mechanism (11) along the direction d3; the direction d3 and the direction d4 are perpendicular to each other, and the direction d3 and the direction d4 are both perpendicular to the rotation axis direction of the push rod (1) and the push lever (2); The operating mechanism (11) comprises a lock piece (1102) and a jump piece (1101) used in cooperation; the electric leakage release mechanism further comprises a transmission rod (10) movably arranged along the direction d3, one end of the transmission rod (10) is connected with the jump piece (1101) in transmission and the other end is connected with the push rod (1) in transmission.

15. A switching device characterized by: The switch device comprises the electric leakage release mechanism according to any one of claims 1-14.

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