Leakage tripping mechanism and switch device

Abstract

The present invention relates to the field of low-voltage electrical appliances, and in particular to a leakage tripping mechanism and a switch device including the leakage tripping mechanism. In order to ensure that the leakage tripping mechanism can be successfully tripped when a leakage fault occurs, in the leakage tripping device, during the process of a push rod rotating along a direction d1, a lock rod is driven to move so that the lock rod and a lever are released from the buckle, and an energy storage component releases energy to drive the lever to move. The lever is used to drive the push rod to continue rotating along the direction d1. After the push rod rotates to a push rod trigger position, the energy storage component applies a force to the push rod through the lever to make it have a tendency to rotate along the direction d1. After the operating mechanism is tripped, the second reset component drives the lock rod to reset and the push rod drives the lever to reset, so that the lever and the lock rod resume the buckle fit, and at the same time the lever causes the energy storage component to store energy. The leakage tripping mechanism and the switch device have stable and reliable residual current protection functions.

Description

Technical Field

[0001] The invention relates to the field of low-voltage electrical appliances, and in particular to an electric leakage tripping mechanism and a switch device comprising the electric leakage tripping mechanism. Background Art

[0002] The existing switchgear with residual current protection function is usually equipped with an operating mechanism, a magnetic release and an intermediate transmission structure. When a leakage fault occurs in the circuit where the switchgear is located, the magnetic release drives the operating mechanism to trip through the intermediate transmission structure to achieve the residual current protection function; wherein, the intermediate transmission structure is usually composed of two or more rods. Due to the matching clearance between the operating mechanism and the rods of the intermediate transmission structure and the influence of slight deformation of the rods under force, the tripping member (such as Figure 1 , 3 The position of the transmission rod 10) shown in 5-6 when the operating mechanism is in the closed state has a slight displacement relative to the position when the operating mechanism is in the open state. The magnetic release must drive the release part to complete this slight displacement stroke before it can push the mechanism release part. As the use time of the switching device increases, the slight displacement may gradually increase. After the magnetic release is tripped, the thrust of the top rod decays as the stroke of the top rod increases. When the slight displacement is too large, the thrust of the magnetic release top rod decays too much and cannot push the mechanism to trip, resulting in unstable residual current protection function. Summary of the invention

[0003] The object of the present invention is to overcome at least one defect of the prior art and to provide a leakage tripping mechanism and a switch device including the leakage tripping mechanism, wherein the residual current protection function thereof is stable and reliable.

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

[0005] A leakage tripping mechanism comprises a magnetic tripping device, a push rod, a first reset member and an operating mechanism of a switch device; the operating mechanism drives the first reset member to store energy during the closing process; the magnetic tripping device comprises a push rod and is used to drive the push rod to be pushed out when a leakage fault occurs in the circuit where the switch device is located, the push rod is driven by the push rod to rotate along a direction d1 to a push rod triggering position, and the operating mechanism is driven to trip when or before the push rod reaches the push rod triggering position; after the operating mechanism is tripped, the first reset member releases energy and drives the push rod to rotate along a direction d2, and the push rod is driven by the push rod to reset; the directions d1 and d2 are opposite directions to each other;

[0006] The leakage tripping mechanism also includes an energy storage mechanism, which includes a lock rod and a lever that fit together with a snap, an energy storage component, and a second reset component; during the process of the push rod rotating along the direction d1, the lock rod is driven to move so that the lock rod and the lever are released from the snap fit, and the energy storage component releases energy to drive the lever to move, and the lever is used to drive the push rod to continue rotating along the direction d1. After the push rod rotates to the push rod trigger position, the energy storage component applies a force to the push rod through the lever to make it have a tendency to rotate along the direction d1; after the operating mechanism is tripped, the second reset component drives the lock rod to reset and the push rod drives the lever to reset, so that the lever and the lock rod resume the snap fit, and at the same time the lever causes the energy storage component to store energy.

[0007] Further, the lock rod is rotatably arranged, and the second reset member makes the lock rod have a tendency to rotate along the direction d1; and / or, the lever is rotatably arranged, and the energy storage member makes the lever have a tendency to rotate along the direction d2.

[0008] Furthermore, the locking rod and the lever are rotatably arranged respectively, and the rotation axis directions of the locking rod and the lever are parallel and the same as the rotation axis direction of the push rod.

[0009] Furthermore, the locking rod includes a locking rod matching portion, the lever includes a lever matching portion, and the push rod includes a push rod actuated arm, which is inserted between the locking rod matching portion and the lever matching portion; when the push rod drives the push rod to rotate in direction d1 through the push rod actuated arm, the push rod actuated arm presses against the locking rod matching portion to drive the locking rod to rotate in direction d2, so that the locking rod and the lever are released from the snap-fitting; in the process of switching from the operating mechanism to the disengaged state after being disengaged, the second reset member drives the locking rod to rotate in direction d1, the push rod is driven by the first reset member to rotate in direction d2 and drives the lever to rotate in direction d1 through the push rod actuated arm to press against the lever matching portion, so that the locking rod and the lever resume the snap-fitting.

[0010] Furthermore, when the operating mechanism is in the closed state, a first gap is provided between the lock rod matching portion and the lever matching portion to allow the push rod driven arm to swing freely within a preset angle.

[0011] Furthermore, when the push rod actuated arm contacts the mating portion of the lock rod, the distance between the push rod actuated arm and the push rod is ≤2.5mm.

[0012] Furthermore, the locking rod also includes a locking rod trunk, which includes a locking rod buckle surface; the lever also includes a lever locking arm, which includes a lever locking part, and the lever locking part rests on the locking rod buckle surface to make the locking rod cooperate with the lever buckle.

[0013] Furthermore, when the operating mechanism is in a closed state, the lever locking portion abuts against the locking rod buckle surface; when the operating mechanism is in an open state, a second gap is formed between the lever locking portion and the locking rod buckle surface.

[0014] Furthermore, the latch surface of the locking rod is an arc-shaped surface, the center of which coincides with the rotation center of the locking rod; the lever locking portion includes a locking edge; when the operating mechanism is in a closed state, the locking edge rests on the latch surface of the locking rod; when the operating mechanism is in an open state, a second gap is formed between the locking edge and the latch surface of the locking rod.

[0015] Furthermore, the locking rod trunk further comprises a first limiting surface and a second limiting surface, and the first limiting surface, the locking rod buckle surface and the second limiting surface are arranged in sequence;

[0016] When the operating mechanism is in the closed state, the lever locking part abuts against the locking surface of the locking rod and the first limiting surface abuts against the lever locking part; when the operating mechanism is in the open state, a second gap is formed between the lever locking part and the locking surface of the locking rod and the first limiting surface abuts against the lever locking part; when the operating mechanism is in the released state, the second limiting surface is opposite to the lever locking part.

[0017] Furthermore, the lever locking portion includes a lever limiting surface, a lever buckle surface and a locking edge, the lever limiting surface and the lever buckle surface are bent and connected, and the locking edge is formed at the bent connection between the lever limiting surface and the lever buckle surface;

[0018] When the operating mechanism is in the closed state, the lock edge abuts against the lock rod buckle surface and the first limit surface abuts against the lever limit surface; when the operating mechanism is in the open state, a second gap is formed between the lock edge and the lock rod buckle surface and the first limit surface abuts against the lever limit surface; when the operating mechanism is in the released state, the second limit surface is opposite to the lever buckle surface.

[0019] Furthermore, the locking rod includes a locking rod mounting portion, a locking rod trunk and a locking rod matching portion which are connected in sequence. The locking rod is rotatably arranged through the locking rod mounting portion, the locking rod trunk is buckled with the lever, and the locking rod matching portion is transmission-matched with the push rod.

[0020] Furthermore, the locking rod also includes an annular platform, which is arranged on one side of the locking rod mounting portion in the direction of the rotation axis of the locking rod; the second reset member is a torsion spring, the spiral body of the torsion spring is sleeved on the annular platform, one spring arm is fixedly arranged and the other spring arm cooperates with the locking rod.

[0021] Furthermore, the lever includes a lever mounting portion, a lever locking arm and a lever matching arm, the lever is rotatably arranged through the lever mounting portion, the lever locking arm includes a locking arm connecting portion and a lever locking portion, the lever locking portion is used to be snap-fitted with the locking rod, one end of the locking arm connecting portion is connected to the lever mounting portion and the other end is connected to the lever locking portion, the lever matching arm includes a matching arm connecting portion and a lever matching portion, the lever matching portion is used to be matched with the push rod transmission, one end of the matching arm connecting portion is connected to the lever mounting portion and the other end is connected to the lever matching portion, the lever locking arm and the lever matching arm are sequentially arranged along the rotation direction of the lever.

[0022] Furthermore, the lever also includes a lever hanging spring portion, which is arranged on one side of the lever locking arm in the direction of the lever's rotation axis; the energy storage component is a tension spring, one end of which is fixedly arranged and the other end is hung on the lever hanging spring portion.

[0023] Furthermore, the push rod also includes a push rod main board, a push rod mounting arm and a push rod driving arm. The push rod actuated arm, the push rod main board and the push rod driving arm are connected in sequence. The two groups of push rod mounting arms are arranged relatively spaced apart along the rotation axis direction of the push rod and are respectively connected to a pair of side edges of the push rod main board by bending. The push rod is rotatably arranged by the push rod mounting arm, and the push rod driving arm is used to drive the operating mechanism to disengage.

[0024] Furthermore, the leakage tripping mechanism also includes a lever. After the operating mechanism is tripped, the first reset member releases energy and drives the lever to rotate. The push rod is driven by the lever to rotate along the direction d2, and the push 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 axis directions of the push rod and the lever are parallel.

[0025] Furthermore, the operating mechanism and the energy storage mechanism are arranged in sequence along direction d3, and the push rod and the lever are located between the operating mechanism and the energy storage mechanism in direction d3; the push rod, the lever and the energy storage mechanism are located on one side of the magnetic release in direction d4, and the push rod is arranged to move along 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 in direction d3; the direction d3 is perpendicular to the direction d4 and both the direction d3 and the direction d4 are perpendicular to the rotation axis direction of the push rod and the lever.

[0026] Furthermore, the operating mechanism includes a locking member and a tripping member used in conjunction with each other; the leakage tripping mechanism also includes a transmission rod arranged to move along the direction d3, one end of the transmission rod is transmission-connected to the tripping member and the other end is transmission-coordinated with the push rod.

[0027] A switch device comprises the leakage tripping mechanism.

[0028] Compared with the prior art solutions, the leakage tripping mechanism of the present invention has a push rod that not only rotates under the action of the top rod of the magnetic tripper to drive the operating mechanism to trip, but its additional energy storage mechanism is also used to apply force to the push rod to ensure that the push rod can move 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 switching device of this embodiment.

[0029] In addition, the first gap prevents the push rod from accidentally driving the lock rod to rotate so that the lock rod and the lever are released from the hasp fit, thereby improving the stability of the product.

[0030] In addition, when the push rod actuated arm contacts the mating part of the lock rod, the distance between the push rod actuated arm and the push rod is ≤2.5mm, thereby limiting the distance between the push rod and the push rod to a smaller value when the operating mechanism is in the closed state, thereby increasing the force output by the push rod of the magnetic release, ensuring that the push rod can drive the lock rod to rotate under the action of the push rod to release its latching fit with the lever.

[0031] The switch device of the present invention comprises the leakage tripping mechanism, and its residual current protection function is stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a projection view of the switch device of the present invention, the switch device is in a state where the operating mechanism is tripped and the contact system is not disconnected;

[0033] Figure 2 The present invention Figure 1 an enlarged view of a portion 14;

[0034] Figure 3 is a schematic diagram of the three-dimensional structure of the switch device of the present invention, in which the switch device is in a state where the operating mechanism is tripped and the contact system is not disconnected;

[0035] Figure 4 The present invention Figure 3 an enlarged view of a portion 15;

[0036] Figure 5 It is a partial view of the switch device of the present invention in the closed state, showing the states of the push rod, the lever and the energy storage mechanism;

[0037] Figure 6 It is a partial view of the switch device of the present invention in the open state, showing the states of the push rod, the lever and the energy storage mechanism;

[0038] Figure 7 It is a structural schematic diagram of the lever of the present invention;

[0039] Figure 8 It is a schematic structural diagram of the push rod of the present invention;

[0040] Fig. 9 Schematic diagrams of the structure of the locking rod of the present invention, wherein FIG (91) is a schematic diagram of the structure of the locking rod at one viewing angle, and FIG (92) is a schematic diagram of the structure of the locking rod at another viewing angle;

[0041] Fig.10 It is a schematic diagram of the structure of the lever of the present invention;

[0042] Fig.11 It is a structural schematic diagram of the first resetting member of the present invention;

[0043] Fig.12 is a schematic structural diagram of a second resetting member of the present invention;

[0044] Fig.13 It is a schematic diagram of the structure of the energy storage component of the present invention;

[0045] Fig.14 It is a structural schematic diagram of the base of the present invention;

[0046] Fig.15 It is a schematic structural diagram of the partition of the present invention.

[0047] Description of Reference Numerals

[0048] Push rod 1, push rod main board 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;

[0049] The lever 2, the lever mounting portion 201, the lever mounting hole 2010, the lever middle portion 202, the lever connecting portion 203, the lever connecting hole 2030, and the lever matching portion 204;

[0050] A first restoring member 3, a first spiral body 300, a first fixing arm 301, and a first matching arm 302;

[0051] Locking rod 4, locking rod mounting portion 401, locking rod mounting hole 4010, locking rod trunk 402, locking rod matching portion 403, first limiting surface 404, locking rod buckle surface 405, second limiting surface 406, annular platform 407;

[0052] Lever 5, lever mounting portion 501, lever mounting hole 5010, lever locking arm 502, locking arm connecting portion 5021, lever locking portion 5022, lever limiting surface 50221, lever buckle surface 50222, locking edge 50223, lever matching arm 503, matching arm connecting portion 5031, lever matching portion 5032, lever hanging spring portion 504;

[0053] A second restoring member 6, a second spiral body 600, a second fixing arm 601, and a second matching arm 602;

[0054] Energy storage component 7, first hanging ear 701, second hanging ear 702;

[0055] Base 8, lever mounting column 805;

[0056] Partition plate 9, push rod mounting column 901, lever mounting column 902, lock rod mounting column 904, lever positioning portion 905, positioning rib 906, hanging spring column 907;

[0057] Transmission rod 10;

[0058] Operating mechanism 11, handle 1100, jumper 1101, locker 1102, first connecting rod 1103, second connecting rod 1104, rotating plate 1105;

[0059] Magnetic release 12, top rod 1201;

[0060] Pull rod 13. DETAILED DESCRIPTION

[0061] The following is a further description of the specific implementation of the switch device of the present invention in conjunction with the embodiments given in the accompanying drawings. The switch device of the present invention is not limited to the description of the following embodiments.

[0062] The switch device of the present invention is a switch device with a residual current protection function, specifically a residual current operated circuit breaker.

[0063] like Figure 1-15 FIG. 1 is an embodiment of the switch device of the present invention.

[0064] like Figure 1 and 3 As shown, the switch device of this embodiment includes a device housing, an operating mechanism 11 and a contact system (not shown in the figure) arranged in the device housing, the contact system includes a moving contact (not shown in the figure) and a static contact (not shown in the figure) used in conjunction with each other, and the operating mechanism 11 is transmission-connected with the moving contact to drive it to close and disconnect with the static contact, so as 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.

[0065] like Figure 1 , Figure 3As shown, the length direction, width direction and height direction of the switch device of this embodiment are direction d3, direction d5 and direction d4 respectively (in this patent, direction d3 is represented by 53 in the figure, direction d5 is represented by 55 in the figure, and direction d4 is represented by 54 in the figure), and direction d3, direction d4 and direction d5 are perpendicular to each other.

[0066] like Figure 1 , 3 As shown in 14-15, the device housing includes a base 8 and a shell cover (not shown in the figure) that are relatively assembled together, and the base 8 and the shell cover are relatively arranged along the direction d5.

[0067] like Figure 1 and 3 As shown, the operating mechanism 11 is implemented by the prior art, for example: the operating mechanism 11 is a cam-five-link mechanism, which includes a handle 1100 rotatably arranged on the device housing, a lock member 1102, a jumper 1101, a rotating plate 1105, a first connecting rod 1103 and a second connecting rod 1104; one end of the first connecting rod 1103 is hinged to the handle 1100 and the other end is hinged to one end of the second connecting rod 1104 and is slidably arranged in the waist-shaped hole of the lock member 1102, the other end of the second connecting rod 1104 is hinged to the rotating plate 1105, the rotating plate 1105 is transmission-connected to the moving contact, the lock member 1102 and the jumper 1101 are snap-fitted, and the jumper 1101 is driven to rotate by an external force (for example, the external force can come from the top rod 1201 of the magnetic release 12 described later), so that the jumper 1101 and the lock member 1102 are released from the snap-fit, thereby releasing the operating mechanism 11. Furthermore, the handle 1100 has a closing position, a tripping position and an opening position which are sequentially arranged along the rotation direction of the handle 1100; the handle 1100 is rotated to the closing position to drive the switch device of the present embodiment to close; the handle 1100 is rotated to the opening position to drive the switch device of the present embodiment to open; when the switch device of the present embodiment is tripped (that is, the operating mechanism 11 is tripped), the handle 1100 is rotated from the closing position to the tripping position; when the switch device of the present embodiment is in the tripped state, an external force drives the handle 1100 to rotate from the tripping position to the opening position, so that the switch device of the present embodiment is re-engaged (that is, the operating mechanism 11 is re-engaged, so that the tripping member 1101 and the locking member 1102 of the operating mechanism 11 resume the snap fit), and after the switch device of the present embodiment is re-engaged, it switches to the opening state, that is, the opening state is also the re-engaged state of the switch device of the present embodiment.

[0068] Furthermore, the jumper 1101 is coaxially arranged with the rotating plate 1105, and the rotation axis directions of the handle 1100, the locking member 1102, the jumper 1101 and the rotating plate 1105 are all the same as the direction d5.

[0069] It should be pointed out that the operating mechanism 11 is not limited to the above-mentioned implementation method, and other forms (such as a four-bar linkage operating mechanism) may also be adopted. Regardless of the structure of the operating mechanism 11, the operating mechanism 11 includes a snap-fit ​​locking member 1102 and a jumper member 1101.

[0070] like Figure 1 and 3 As shown, the switch device of this embodiment also includes a leakage tripping mechanism, which includes a magnetic tripper 12, a push rod 1, a first reset member 3 and an operating mechanism 11; the push rod 1 is rotatably arranged (for example, rotatably arranged on the device housing); the operating mechanism 11 drives the first reset member 3 to store energy during the closing process; the magnetic tripper 12 includes a push rod 1201 and is used to drive the push rod 1201 to push out when a leakage fault occurs in the circuit where the switch device is located (that is, residual current occurs), and the push rod 1 is driven by the push rod 1201 to move along a direction d1 (in this patent, the direction d1 is represented by 51 in the figure, as shown in FIG. Figure 5 As shown) the push rod trigger position is rotated, and the push rod 1 drives the operating mechanism 11 to trip when or before it reaches the push rod trigger position; that is, the switch device of this embodiment is in the closed state (that is, the operating mechanism 11 is in the closed state), if a leakage fault occurs in the circuit where the switch device of this embodiment is located, the magnetic release 12 drives the push rod 1201 to be pushed out, and the push rod 1 drives the push rod 1 to rotate, and the push rod 1 drives the operating mechanism 11 to trip when or before it reaches the push rod trigger position; after the operating mechanism 11 is tripped, the first reset member 3 releases energy and drives the push rod 1 to rotate, and the push rod 1 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) the push rod trigger position is rotated, and the push rod 1 drives the operating mechanism 11 to trip; after the operating mechanism 11 is tripped, the first reset member 3 releases energy and drives the push rod 1 to rotate, and the push rod 1 is driven 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) the push rod trigger position is rotated, and the push rod 1 drives the operating mechanism 11 to trip; Figure 5 The position of the push rod 1 when it triggers the operating mechanism 11 to trip (i.e., when the push rod 1 drives the jumper 1101 to rotate and releases the hasp fit with the lock member 1102, and the operating mechanism 11 is in a critical state at this time) is recorded as the first position; ideally, the push rod 1 is configured to trigger the operating mechanism 11 to trip when it rotates to the first position, that is, the push rod 1 drives the operating mechanism 11 to trip when it reaches the push rod trigger position, and the push rod trigger position is the first position at this time; however, considering the processing error, matching error and / or wear (and / or deformation) caused by long-term use of various components of the operating mechanism 11, the push rod 1 is configured to rotate a certain angle to reach the push rod trigger position after the operating mechanism 11 is triggered to trip, that is, the push rod 1 can drive the operating mechanism 11 to trip before it reaches the push rod trigger position, so as to ensure that the push rod 1 can reliably trigger the operating mechanism 11 to trip, so the push rod 1 needs to rotate a preset angle after reaching the first position to reach the push rod trigger position.

[0071] Further, such as Figure 1-6As shown, the leakage tripping mechanism also includes a lever 2, which is rotatably arranged (for example, rotatably arranged on the device housing). After the operating mechanism 11 is tripped, the first reset member 3 releases energy and drives the lever 2 to rotate, the push rod 1 is driven by the lever 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 lever 2 during the closing process, that is, the operating mechanism 11 drives the lever 2 to rotate during the closing process, and the first reset member 3 is driven by the lever 2 to store energy at the same time. Further, the rotation axis directions of the push rod 1 and the lever 2 are parallel to the direction d5; the top rod 1201 is set to move along the direction d4.

[0072] Further, such as Figure 1 , 3 As shown, the leakage tripping mechanism further includes a transmission rod 10, one end of which is transmission-connected to the tripping catch 1101 and the other end of which is transmission-matched to the push rod 1. The push rod 1 drives the tripping catch 1101 to rotate through the transmission rod 10, so that the tripping catch 1101 and the lock catch 1102 are released from the buckle fit. Further, the transmission rod 10 is integrally movable along the direction d3.

[0073] Further, such as Figure 1 As shown, the leakage tripping mechanism further includes a pull rod 13, which is in transmission cooperation with the rotating plate 1105 of the operating mechanism 11 and one end of which is in transmission connection with the lever 2. Further, the pull rod 13 is arranged to move as a whole, one end of which is in transmission cooperation with the rotating plate 1105 and the other end of which is in rotation connection with the lever 2; when the operating mechanism 11 is switched to the closing state, the rotating plate 1105 rotates to drive the pull rod 13 to move, and the pull rod 13 drives the lever 2 to rotate along the direction d1; when the operating mechanism 11 is switched to the opening state, the rotating plate 1105 rotates to avoid the pull rod 13, the first reset member 3 releases energy and drives the lever 2 to rotate along the direction d2, the lever 2 drives the push rod 1 to rotate along the direction d2, and the push rod 1 drives the top rod 1201 to reset, and the direction d1 and the direction d2 are opposite directions to each other.

[0074] Specifically, Figure 1-6 As shown, the lever 2 has a lever first position and a lever second position sequentially arranged along its rotation direction; the push rod 1 has a push rod first position and a push rod third position (i.e., a push rod trigger position) sequentially arranged along its rotation direction; Figure 1-4 As shown, when the operating mechanism 11 is tripped and the contact system is not disconnected (that is, when the jumper 1101 rotates under the drive of the push rod 1 and releases the buckle with the lock member 1102), the push rod 2 is in the second push rod position, and the push rod 1 is in the third push rod position under the action of the push rod 1201; Figure 6 As shown, the switch device of this embodiment is in the open state, the lever 2 is in the first lever position, and the push rod 1 is in the first push rod position under the action of the lever 2 (for example, Figure 6 In the direction shown, the lever mating portion 204 of the lever 2 presses against the push rod driving arm 104 of the push rod 1, so that the push rod 1 is in the first push rod position); Figure 5 As shown, the switch device of this embodiment is in the closed state, and the lever 2 is in the second lever position, so that the lever 2 avoids the push rod 1, and prepares for the push rod 1 to rotate along the direction d1 under the drive of the top rod 1201 to drive the operating mechanism 11 to trip; Figure 5 and 6 As shown, the switch device of this embodiment switches from the open state to the closed state, the operating mechanism 11 drives the lever 2 to rotate from the first position of the lever to the second position of the lever through the pull rod 13, and the lever 2 drives the first reset member 3 to store energy; Figure 1-5 As shown, when the switch device of this embodiment is switched from the closed state to the state in which the operating mechanism 11 is tripped and the contact system is not disconnected (that is, when the tripping member 1101 of the operating mechanism 11 is driven by the push rod 1 to rotate and release the hasp fit with the lock member 1102), the push rod 1201 drives the push rod 1 to rotate to the third push rod position, and the push rod 1 drives the operating mechanism 11 to trip (the tripping member 1101 and the lock member 1102 are released from the hasp fit), and the lever 2 remains in the second lever position; Figure 1-4 As shown in Figures 6, when the switch device of this embodiment is switched from the state in which 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 and drives the lever 2 to rotate from the second position of the lever to the first position of the lever, and at the same time, the lever 2 drives the push rod 1 to rotate from the third position of the push rod to the first position of the push rod, and at the same time, the push rod 1 drives the push rod 1201 to reset.

[0075] Further, such as Figure 1 , 3 , 14-15, the device housing further includes a partition 9 disposed between the base 8 and the shell cover, the contact system is disposed between the base 8 and the partition 9, the partition 9 is disposed side by side with the operating mechanism 11 in the direction d3, the partition 9 and the magnetic release 12 are disposed side by side along the direction d4, the push rod 1 and the lever 2 are disposed between the partition 9 and the shell cover, and the operating mechanism 11 and the magnetic release 12 are disposed between the base 8 and the shell cover. Further, the transmission rod 10 and the pull rod 13 are disposed between the partition 9 and the shell cover.

[0076] Further, such as Figure 1-6As shown in , 8, the push rod 1 includes a push rod main board 101 and a push rod mounting arm 102, a push rod actuated arm 103, and a push rod driving arm 104 respectively connected to the push rod main board 101. The push rod 1 is rotatably arranged by the push rod mounting arm 102, and the push rod actuated arm 103, the push rod main board 101 and the push rod driving arm 104 are connected in sequence. The push rod actuated arm 103 is in transmission cooperation with the top rod 1201 of the magnetic release 12, and the push rod driving arm 104 is in transmission cooperation with the transmission rod 10. Furthermore, the two groups of push rod mounting arms 102 are respectively connected to a pair of side edges of the push rod main board 101 by bending, and the two groups of push rod mounting arms 102 are arranged opposite to each other along the direction d5. The push rod mounting arms 102 are rotatably set on the device housing. For example, one push rod mounting arm 102 is rotatably set on the push rod mounting column 901 of the partition 9 of the device housing, and the other push rod mounting arm 102 is rotatably set on the push rod mounting column 901 of the shell cover (not shown in the figure) of the device housing. The push rod mounting arm 102 is provided with a push rod mounting hole 1020, and the push rod mounting arm 102 is rotatably sleeved on the push rod mounting column 901 through the push rod mounting hole 1020.

[0077] As other embodiments of the push rod 1, it is a rod with a certain thickness in the direction d5, a push rod shaft is provided in the middle of the rod, and both ends of the push rod shaft are rotatably set on the device housing, or a push rod shaft hole is provided in the middle of the rod, and the push rod 1 is sleeved on the push rod shaft fixedly set on the device housing through the push rod shaft hole.

[0078] Further, such as Figure 1-6 As shown in Figures 7 and 8, the lever 2 includes a lever mounting portion 201, a lever middle portion 202, a lever connecting portion 203 and a lever matching portion 204 which are connected in sequence. The lever 2 is rotatably arranged through the lever mounting portion 201, and the lever connecting portion 203 is transmission-connected with one end of the pull rod 13 (specifically, the lever connecting portion 203 is provided with a lever connecting hole 2030, and one end of the pull rod 13 is rotationally inserted into the lever connecting hole 2030, so that the lever connecting portion 203 is transmission-connected with one end of the pull rod 13), and the lever matching portion 204 is used for transmission-matching with the first reset member 3 and the push rod 1 respectively. Further, the free end of the lever matching portion 204 abuts against the push rod driven arm 103 of the push rod 1. Further, the lever mounting portion 201 is provided with a lever mounting hole 2010, and the lever 2 is rotationally sleeved on the lever mounting column 902 of the partition 9 of the device housing through the lever mounting hole 2010.

[0079] Further, such as Figure 1-6As shown in , 11, the first reset member 3 is a torsion spring, which includes a first spiral body 300 and two spring arms respectively connected to the first spiral body 300, the two spring arms are respectively a first fixed arm 301 and a first matching arm 302, the first spiral body 300 is fixedly arranged (for example, sleeved on the 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), the first matching arm 302 is transmission-matched with the lever matching portion 204 of the lever 2, and the first matching arm 302 and the push rod actuated arm 103 of the push rod 1 are respectively located on both sides of the lever matching portion 204.

[0080] As other embodiments of the first restoring member 3, it is a compression spring, a tension spring or a spring sheet.

[0081] like Figure 1-6 As shown, the leakage tripping mechanism also includes an energy storage mechanism, which includes a snap-fitting 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, that is, during the rotation of the push rod 1 along the direction d1 to the push rod trigger position under the drive of the push rod 1201, the lock rod 4 is driven to act so that the lock rod 4 and the lever 5 are released from the snap fit, and 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 energy storage member 7 applies a force to the push rod 1 through the lever 5 to make it have a tendency to rotate along the direction d1; when or before the push rod 1 reaches the push rod trigger position, the operating mechanism 11 is driven to trip. During the process of the operating mechanism 11 switching to the tripped state after being tripped (i.e., after the jumper 1101 and the lock member 1102 of the operating mechanism 11 are released from the snap fit, the rotating plate 1105 drives the moving contact to move to the disconnected position of the moving contact), 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 resume the snap fit, and at the same time, the lever 5 causes the energy storage member 7 to store energy; specifically, during the process of the operating mechanism 11 switching to the tripped state after being tripped, the rotating plate 1105 rotates to avoid the pull rod 13, the first reset member 3 releases energy and drives 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, and at the same time, the push rod 1 drives the lever 5 to reset and the lever 5 causes the energy storage member 7 to store energy, the push rod 1 avoids the lock rod 4, the second reset member 6 releases energy and drives the lock rod 4 to reset, the lever 5 and the lock rod 4 reset and resume the snap fit. Further, as Figure 1 and 3 As shown, the locking rod 4 is arranged between the partition 9 and the shell cover of the device housing, and the lever 5 is arranged between the base 8 and the shell cover.

[0082] The force applied to the push rod 1 during the process of rotating to the push rod trigger position is as follows:

[0083] In case 1, the push rod 1 rotates to the push rod trigger position only under the action of the push rod 1201, and the lever 5 is simultaneously actuated by the energy storage member 7. The lever 5 does not contact the push rod 1 until the push rod 1 reaches the push rod trigger position. The energy storage member 7 applies an action force to the push rod 1 through the lever 5, so that the push rod 1 has a tendency to rotate along the direction d1. In case 2, the push rod 1 rotates to the push rod trigger position along the direction d1 under the dual action of the action force of the push rod 1201 and the action force applied to the push rod 1 by the energy storage member 7 through the lever 5. After the push rod 1 reaches the push rod trigger position, the energy storage member 7 still applies an action force to the push rod 1 through the lever 5, so that the push rod 1 has a tendency to rotate along the direction d1. In case three, the push rod 1 rotates in direction d1 under the force of the push rod 1201, but the push rod 1 is not rotated enough under the force of the push rod 1201 to trigger the operating mechanism 11 to be disengaged. The force applied by the energy storage component 7 to the push rod 1 through the lever 5 drives the push rod 1 to rotate until the trigger operating mechanism 11 is disengaged and finally rotates to the push rod trigger position. After the push rod 1 reaches the push rod trigger position, the energy storage component 7 still applies a force to the push rod 1 through the lever 5 to make the push rod 1 have a tendency to rotate in direction d1.

[0084] Compared with the prior art solutions, the leakage tripping mechanism has a push rod 1 that not only rotates under the action of the top rod 1201 of the magnetic tripper 12 to drive the operating mechanism 11 to trip, but its additional energy storage mechanism is also used to apply force to the push rod 1 to ensure that the push rod 1 can move 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 switching device of this embodiment.

[0085] Further, such as Figure 1-6 As shown, the lock rod 4 is rotatably arranged, and the second reset member 6 makes the lock rod 4 have a tendency to rotate along the direction d1; and / or, the lever 5 is rotatably arranged, and the energy storage member 7 makes the lever 5 have a tendency to rotate along the direction d2.

[0086] In the switch device of this embodiment, the lock rod 4 and the lever 5 are respectively rotatably arranged and the rotation axis directions of the lock rod 4 and the lever 5 are parallel; during the rotation of the push rod 1 along the direction d1, the lock rod 4 is driven to rotate along the direction d2 so that the lock rod 4 and the lever 5 are released from the buckle, the energy storage member 7 releases energy to drive the lever 5 to rotate along the direction d2, and the lever 5 drives the push rod 1 to rotate along the direction d1. Furthermore, the rotation axis directions of the lock rod 4 and the lever 5 are the same as the rotation axis directions of the push rod 1 and the lever 2, both of which are direction d5.

[0087] As other embodiments of the action mode of the locking rod 4 and the lever 5, the locking rod 4 is moved as a whole and the lever 5 is rotated; or, the locking rod 4 is rotated and the lever 5 is moved as a whole; or, the locking rod 4 and the lever 5 are moved as a whole respectively.

[0088] Further, such as Figure 1-6 As shown, the lock rod 4 includes a lock rod matching portion 403, the lever 5 includes a lever matching portion 5032, and the push rod 1 includes a push rod actuated arm 103, which is inserted between the lock rod matching portion 403 and the lever matching portion 5032. When the push rod 1 rotates along the direction d1, the push rod actuated arm 103 presses the lock rod matching portion 403 to drive the lock rod 4 to rotate along the direction d2, so that the lock rod 4 and the lever 5 are released from the buckle, and the push rod 1 continues to rotate along the direction d2 through the lock rod matching portion 403 until the push rod 1 reaches the push rod trigger position, and at the same time, the lock rod 4 causes the second reset member 6 to store energy, and at the same time, the energy storage member 7 releases energy to drive the lever 5 to rotate along the direction d2 until the push rod 1 reaches the push rod trigger position. In the process of switching from the operating mechanism 11 to the tripped state after the tripping member 1101 of the operating mechanism 11 and the locking member 1102 are released from the buckle fit, that is, in the process of switching the operating mechanism 11 from the critical state to the tripped state, the second reset member 6 drives the locking rod 4 to rotate along the direction d1, and the push rod 1 is driven by the first reset member 3 to rotate along the direction d2, and the push rod is driven by the movable arm 103 to press the lever fitting portion 5032 to drive the lever 5 to rotate along the direction d1, so that the locking rod 4 That is, when the operating mechanism 11 is switched to the disengaged state after being disengaged, the push rod actuated arm 103 avoids the lock rod actuating portion 403 and causes the lock rod 4 to rotate along the direction d1 under the drive of the second reset member 6, so that the lock rod 4 is reset. At the same time, the push rod actuated arm 103 presses the lever actuating portion 5032 and drives the lever 5 to rotate along the direction d1, so that the lever 5 is reset and the lever 5 causes the energy storage member 7 to store energy, and finally the lock rod 4 and the lever 5 are restored to the lock. Further, the lock rod actuating portion 403 and the lever actuating portion 5032 both include arc-shaped mating surfaces, and the two arc-shaped mating surfaces respectively cooperate with the two sides of the push rod actuated arm 103, which is conducive to reducing the friction when the lock rod actuating portion 403, the lever actuating portion 5032 and the push rod actuated arm 103 cooperate.

[0089] As other embodiments of the lock rod matching portion 403 and the lever matching portion 5032 , both of them may also be provided with a pointed protrusion matching with the push rod actuated arm 103 .

[0090] Further, such as Figure 1-6 As shown, a first gap is provided between the lock rod matching portion 403 and the lever matching portion 5032 to allow the push rod driven arm 103 to swing freely within a preset angle, thereby preventing the switch device of this embodiment from vibrating and causing the push rod 1 to drive the lock rod 4 to rotate by mistake, so that the lock rod 4 and the lever 5 are released from the buckle fit, thereby improving the stability of the product. Furthermore, the push rod 1 also has a push rod second position, and the push rod first position, push rod second position and push rod third position are sequentially arranged along the rotation direction of the push rod 1; Figure 5As shown, the operating mechanism 11 is in the closed state, the push rod 1 is in the second push rod position, and the push rod 1 can rotate freely between the first push rod position and the second push rod position; the push rod 1 is in contact with the lock rod matching portion 403 when it is in the second push rod position. When the operating mechanism 11 is in the closed state and the push rod 1 is in the first push rod position (the push rod actuated arm 103 is in contact with the push rod 1201), the magnetic release 12 is actuated to drive the push rod actuated arm 103 through the first gap through the push rod 1201 and contact with the lock rod matching portion 403, thereby driving the lock rod 4 to rotate so that it releases the snap fit with the lever 5.

[0091] Further, such as Figure 5 As shown, when the operating mechanism 11 is in the closed state and the push rod actuated arm 103 of the push rod 1 contacts the locking rod mating portion 403 (i.e., when the push rod 1 is in the second push rod position), the distance between the push rod actuated arm 103 and the push rod 1201 is ≤2.5mm, thereby limiting the maximum distance between the push rod 1 and the push rod 1201 to a smaller value when the operating mechanism 11 is in the closed state, thereby increasing the force output by the push rod 1201 of the magnetic release 12, ensuring that the push rod 1 can drive the locking rod 4 to rotate under the action of the push rod 1201 to release the latching fit with the lever 5.

[0092] Further, such as Figure 1-6 As shown in Figures 8 and 9, the push rod driven arm 103 of the push rod 1 includes a first driven arm section 1031 and a second driven arm section 1032 which are connected by bending. The push rod main board 101, the first driven arm section 1031 and the second driven arm section 1032 of the push rod 1 are connected in sequence. The first driven arm section 1031 is in transmission cooperation with the lock rod matching portion 403 of the lock rod 4, and the second driven arm section 1032 is in transmission cooperation with the lever matching portion 5032 of the lever 5. Further, the push rod main board 101 and the first driven arm section 1031 are coplanar.

[0093] Further, such as Figure 1-6As shown in Figures 9-10, the locking rod 4 also includes a locking rod trunk 402, which is provided with a locking rod buckle surface 405; the lever 5 also includes a lever locking arm 502, which includes a lever locking portion 5022, which rests on the locking rod buckle surface 405 to make the locking rod 4 and the lever 5 buckle together. Furthermore, when the operating mechanism 11 is in the closed state, the lever locking portion 5022 abuts against the locking rod buckle surface 405; when the operating mechanism 11 is in the open state, a second gap is formed between the lever locking portion 5022 and the locking rod buckle surface 405, that is, when the operating mechanism is buckled again, the lever 5 rotates under the drive of the push rod 1, so that the lever locking portion 5022 rotates over the locking rod buckle surface 405 and then rotates a preset angle, and a second gap is formed between the lever locking portion 5022 and the locking rod buckle surface 405, thereby ensuring that when the operating mechanism 11 is buckled again, the locking rod 4 and the lever 5 can reliably restore the buckle fit, thereby ensuring the reliable and stable operation of the energy storage mechanism. Further, the locking rod buckle surface 405 is an arc-shaped surface, and its center coincides with the rotation center of the locking rod 4; the lever locking portion 5022 includes a locking edge 50223; when the operating mechanism 11 is in the closed state, the locking edge 50223 abuts against the locking rod buckle surface 405; when the operating mechanism 11 is in the open state, a second gap is formed between the locking edge 50223 and the locking rod buckle surface 405. The locking rod buckle surface 405 is set as an arc-shaped surface, so that the force of the locking edge 50223 on the locking rod buckle surface 405 passes through the rotation center of the locking rod 4, thereby reducing the tripping force between the locking rod 4 and the lever 5.

[0094] Specifically, Fig. 9 As shown, the locking rod trunk 402 also includes a first limiting surface 404 and a second limiting surface 406, and the first limiting surface 404, the locking rod buckle surface 405 and the second limiting surface 406 are arranged in sequence; Figure 5 As shown, when the operating mechanism 11 is in the closed state, the lever locking portion 5022 abuts against the locking rod buckle surface 405 and the first limiting surface 404 abuts against the lever locking portion 5022 to prevent the locking rod 4 from continuing to rotate along the direction d1; Figure 6 As shown, when the operating mechanism 11 is in the off state, a second gap is formed between the lever locking portion 5022 and the locking rod buckle surface 405, and the first limiting surface 404 abuts against the lever locking portion 5022; Figure 1-2 As shown, when the operating mechanism 11 is in the tripped state, the second limiting surface 406 is opposite to the lever locking portion 5022. Fig.10As shown, the lever locking portion 5022 includes a lever limiting surface 50221, a lever buckle surface 50222 and a buckle edge 50223, the lever limiting surface 50221 and the lever buckle surface 50222 are bent and connected, and the buckle edge 50223 is formed at the bent connection between the two; when the operating mechanism 11 is in the closed state, the buckle edge 50223 abuts against the buckle surface 405 of the buckle rod and the first limiting surface 404 abuts against the lever limiting surface 50221; when the operating mechanism 11 is in the open state, a second gap is formed between the buckle edge 50223 and the buckle surface 405 of the buckle rod and the first limiting surface 404 abuts against the lever limiting surface 50221, and the lever buckle surface 50222 is relatively spaced from the buckle surface 405 of the buckle rod; when the operating mechanism 11 is in the released state, the second limiting surface 406 is opposite to the lever buckle surface 50222.

[0095] As another embodiment of the locking rod buckle surface 405, the locking rod buckle surface 405 is a plane.

[0096] As another embodiment of the lever locking portion 5022, the lever locking portion 5022 is not provided with a locking edge 50223, but is provided with an arc-shaped protrusion for snap-fitting with the locking rod snap surface 405, and can also achieve linear contact between the two.

[0097] As another embodiment of the lever locking portion 5022, the lever locking portion 5022 is not provided with a lever buckle surface 50222, but is provided with a wedge-shaped protrusion, and the tip of the wedge-shaped protrusion abuts against the buckle surface 405 of the locking rod to achieve the buckle fit between the locking rod 4 and the lever 5.

[0098] As other embodiments of the snap-fitting of the locking rod buckle surface 405 and the lever locking portion 5022, the locking rod buckle surface 405 abuts against the lever buckle surface 50222 to achieve the snap-fitting of the locking rod 4 and the lever 5. However, due to the processing accuracy and / or matching errors of the components, it is difficult to achieve complete parallel abutment between the locking rod buckle surface 405 and the lever buckle surface 50222 in actual situations.

[0099] Further, such as Figure 1-6 As shown in FIG. 9 , the lock rod 4 further includes a lock rod mounting portion 401, the lock rod mounting portion 401, the lock rod trunk 402 and the lock rod matching portion 403 are sequentially connected, the lock rod 4 is rotatably arranged through the lock rod mounting portion 401, the lock rod trunk 402 is snap-fitted with the lever 5 (the specific matching method of the two is described above), and the lock rod matching portion 403 is transmission-matched with the push rod 1 (the specific matching method of the two is described above). Further, as Figure 1-6As shown in FIG. 14 , the locking rod mounting portion 401 includes a locking rod mounting hole 4010 , and the device housing includes a locking rod mounting column 904 , and the locking rod mounting portion 401 is rotatably sleeved on the locking rod mounting column 904 through the locking rod mounting hole 4010 .

[0100] Further, such as Figure 1-6 As shown in , 12, the lock rod 4 also includes an annular platform 407, which is arranged on one side of the lock rod mounting portion 401 in the direction of the rotation axis of the lock rod 4 (i.e., direction d5); the second reset member 6 is a torsion spring, the spiral body of the torsion spring (the second spiral body 600) is sleeved on the annular platform 407, one spring arm is fixedly arranged (for example, fixed on the partition 9 of the device housing, specifically, the spring arm abuts against the positioning rib 906 of the partition 9) and the spring arm is the second fixed arm 601, and the other spring arm cooperates with the lock rod 4 (the spring arm cooperates with the lock rod trunk 402 of the lock rod 4) and the spring arm is the second cooperation arm 602. Further, the center hole of the annular platform 407 is relatively connected with the lock rod mounting hole 4010.

[0101] As other embodiments of the second restoring member 6, it is a compression spring, a tension spring or a spring sheet.

[0102] Further, such as Figure 1-6 As shown in Figure 10, the lever 5 also includes a lever mounting portion 501, and 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, and the lever mounting portion 501 is rotatably sleeved on the lever mounting column 805 of the base 8 through the lever mounting hole 5010), and the lever locking arm 502 includes a locking arm connecting portion 5021 and a lever locking portion 5022, and the lever locking portion 5022 is used to be snap-fitted with the locking rod 4 (the specific matching method of the two is described above), and one end of the locking arm connecting portion 5021 is snap-fitted with the locking rod 4 The lever mounting portion 501 is connected to the lever locking portion 5022 at one end and the other end is connected to the lever matching portion 5022. The lever matching arm 503 includes a matching arm connecting portion 5031 and a lever matching portion 5032. The lever matching portion 5032 is used for transmission matching with the push rod 1 (the specific matching method of the two is described above). One end of the matching arm connecting portion 5031 is connected to the lever mounting portion 501 and the other end is connected to the lever matching portion 5032. The lever locking arm 502 and the lever matching arm 503 are both arranged on the circumferential side surface of the lever mounting portion 501 and are arranged in sequence along the rotation direction of the lever 5. Further, the lever locking arm 502 and the lever matching arm 503 are distributed in a V shape as a whole.

[0103] Further, such as Figure 1-6As shown in Figures 10, the lever 5 also includes a lever spring portion 504, which is arranged on one side of the lever locking arm 502 in the direction of the rotation axis of the lever 5 (i.e., direction d5); the energy storage component 7 is a tension spring, one end of which is fixedly arranged (for example, hung on the spring column 907 of the partition 9 of the device housing) and the end is the first hanging ear 701, and the other end is hung on the lever spring portion 504 and the end is the second hanging ear 702.

[0104] As other embodiments of the energy storage element 7, it is a compression spring, a torsion spring or a spring sheet.

[0105] Further, such as Figure 1 , 15 As shown, the device housing also includes a lever positioning portion 905. When the operating mechanism 11 is in the disengaged state, the lever 5 and the lever positioning portion 905 are limitedly cooperated to limit the maximum rotation angle of the lever 5, thereby preventing the lever 5 from excessively rotating in the direction d2 under the action of the energy storage component 7, thereby avoiding excessive rotation of the lever 5 to damage the push rod 1 or deform the push rod 1.

[0106] Specifically, the lever positioning portion 905 is disposed on the partition plate 9 of the device housing, and the lever positioning portion 905 is limitedly matched with the lever locking arm 502 of the lever 5. Further, the lever positioning portion 905 is limitedly matched with the locking arm connecting portion 5021 of the lever locking arm 502.

[0107] like Figure 1 and 3 FIG. 1 is a layout of the switch device of this embodiment.

[0108] The operating mechanism 11 and the energy storage mechanism are arranged in sequence along the direction d3. The handle 1100 of the operating mechanism 11 and the energy storage mechanism are located at both ends of the device housing in the direction d3. The push rod 1 and the lever 2 are located between the operating mechanism 11 and the energy storage mechanism in the direction d3. The push rod 1, the lever 2 and the energy storage mechanism are located on one side of the magnetic release 12 in the direction d4. The push rod 1201 is arranged to move along the direction d4. The push rod 1, the lever 2, the energy storage mechanism and the magnetic release 12 are arranged in the direction d4. The energy storage component 7 and the lever 5 are located on the same side of the locking rod 4 in the direction d3; the energy storage component 7 and the magnetic release 12 are located on both sides of the lever 5 in the direction d4; the locking rod 4 and the magnetic release 12 are located on both sides of the push rod 1 in the direction d4; the rotation axis directions of the push rod 1, the lever 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 arranged to move along the direction d4.

[0109] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate directions or positional relationships based on directions or positional relationships shown in the accompanying drawings, or directions or positional relationships that are usually placed when in use, and are only for the convenience of description, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish descriptions, and cannot be understood as indicating relative importance.

[0110] 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 tripping mechanism, comprising a magnetic tripping device (12), a push rod (1), a first reset member (3), and an operating mechanism (11) of a switch device; the operating mechanism (11) drives the first reset member (3) to store energy during the closing process; the magnetic tripping device (12) comprises a push rod (1201) and is used to drive the push rod (1201) to be pushed out when a leakage fault occurs in the circuit where the switch device is located, the push rod (1) is driven by the push rod (1201) to rotate along a direction d1 toward 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) is tripped, the first reset member (3) releases energy and drives the push rod (1) to rotate along a direction d2, and the push rod (1) is driven by the push rod (1) to reset; the direction d1 and the direction d2 are opposite to each other; Features: The leakage tripping mechanism further comprises an energy storage mechanism, which comprises a lock rod (4) and a lever (5) that are snap-fitted, an energy storage component (7), and a second reset component (6); during the process of the push rod (1) rotating in the direction d1, the lock rod (4) is driven to move so that the lock rod (4) and the lever (5) are released from the snap-fitting, and the energy storage component (7) releases energy to drive the lever (5) to move, and the lever (5) is used to drive the push rod (1) to continue rotating in the direction d1. After the push rod (1) rotates to the push rod trigger position, the energy storage component (7) applies a force to the push rod (1) through the lever (5) so that the push rod has a tendency to rotate in the direction d1; after the operating mechanism (11) is tripped, the second reset component (6) drives the lock rod (4) to reset, and the push rod (1) is driven by the first reset component (3) to rotate in the direction d2 to drive the lever (5) to reset, so that the lever (5) and the lock rod (4) resume the snap-fitting, and at the same time, the lever (5) causes the energy storage component (7) to store energy.

2. The leakage tripping mechanism according to claim 1, characterized in that: The locking rod (4) is rotatably arranged, and the second reset member (6) causes the locking rod (4) to have a tendency to rotate along a direction d1; and / or the lever (5) is rotatably arranged, and the energy storage member (7) causes the lever (5) to have a tendency to rotate along a direction d2.

3. The leakage tripping mechanism according to claim 2, characterized in that: The locking rod (4) and the lever (5) are rotatably arranged respectively, and the rotation axis directions of the locking rod (4) and the lever (5) are parallel and the same as the rotation axis direction of the push rod (1).

4. The leakage tripping mechanism according to claim 3, characterized in that: The locking rod (4) comprises a locking rod matching portion (403), the lever (5) comprises a lever matching portion (5032), and the push rod (1) comprises a push rod actuated arm (103), wherein the push rod actuated arm (103) is inserted between the locking rod matching portion (403) and the lever matching portion (5032); when the push rod (1201) drives the push rod (1) to rotate along a direction d1 via the push rod actuated arm (103), the push rod actuated arm (103) presses against the locking rod matching portion (403) to drive the push rod (1) to rotate along a direction d1. The lock rod (4) rotates in the direction d2, so that the lock rod (4) and the lever (5) are released from the snap fit; in the process of the operating mechanism (11) switching to the release state after being released, the second reset member (6) drives the lock rod (4) to rotate in the direction d1, the push rod (1) is driven by the first reset member (3) to rotate in the direction d2 and the push rod driven arm (103) presses the lever fitting portion (5032) to drive the lever (5) to rotate in the direction d1, so that the lock rod (4) and the lever (5) resume the snap fit.

5. The leakage tripping mechanism according to claim 4, characterized in that: When the operating mechanism (11) is in a closed state, a first gap is provided between the lock rod matching portion (403) and the lever matching portion (5032) to allow the push rod driven arm (103) to swing freely within a preset angle.

6. The leakage tripping mechanism according to claim 5, characterized in that: When the push rod actuated arm (103) contacts the locking rod matching portion (403), the distance between the push rod actuated arm (103) and the push rod (1201) is ≤2.5 mm.

7. The leakage tripping mechanism according to claim 3, characterized in that: The locking rod (4) further comprises a locking rod trunk (402), the locking rod trunk (402) comprising a locking rod buckle surface (405); the lever (5) further comprises a lever locking arm (502), the lever locking arm (502) comprising a lever locking portion (5022), the lever locking portion (5022) abutting against the locking rod buckle surface (405) so that the locking rod (4) and the lever (5) are buckled together.

8. The leakage tripping mechanism according to claim 7, characterized in that: When the operating mechanism (11) is in a closed state, the lever locking portion (5022) abuts against the locking rod buckle surface (405); when the operating mechanism (11) is in an open state, a second gap is formed between the lever locking portion (5022) and the locking rod buckle surface (405).

9. The leakage tripping mechanism according to claim 8, characterized in that: The locking rod buckle surface (405) is an arcuate surface, the center of which coincides with the rotation center of the locking rod (4); the lever locking portion (5022) comprises a locking edge (50223); when the operating mechanism (11) is in a closed state, the locking edge (50223) abuts against the locking rod buckle surface (405); when the operating mechanism (11) is in an open state, a second gap is formed between the locking edge (50223) and the locking rod buckle surface (405).

10. The leakage tripping mechanism according to claim 8, characterized in that: The locking rod trunk (402) further comprises a first limiting surface (404) and a second limiting surface (406), wherein the first limiting surface (404), the locking rod buckle surface (405) and the second limiting surface (406) are arranged in sequence; When the operating mechanism (11) is in a closed state, the lever locking portion (5022) abuts against the locking rod buckle surface (405) and the first limiting surface (404) abuts against the lever locking portion (5022); when the operating mechanism (11) is in an open state, a second gap is formed between the lever locking portion (5022) and the locking rod buckle surface (405) and the first limiting surface (404) abuts against the lever locking portion (5022); when the operating mechanism (11) is in a released state, the second limiting surface (406) is opposite to the lever locking portion (5022).

11. The leakage tripping mechanism according to claim 10, characterized in that: The lever locking portion (5022) comprises a lever limiting surface (50221), a lever buckle surface (50222) and a locking edge (50223); the lever limiting surface (50221) and the lever buckle surface (50222) are connected by bending, and the locking edge (50223) is formed at the bent connection between the lever limiting surface (50221) and the lever buckle surface (50222); When the operating mechanism (11) is in a closed state, the locking edge (50223) abuts against the locking rod buckle surface (405) and the first limiting surface (404) abuts against the lever limiting surface (50221); when the operating mechanism (11) is in an open state, a second gap is formed between the locking edge (50223) and the locking rod buckle surface (405) and the first limiting surface (404) abuts against the lever limiting surface (50221); when the operating mechanism (11) is in a released state, the second limiting surface (406) is opposite to the lever buckle surface (50222).

12. The leakage tripping mechanism according to claim 3, characterized in that: The locking rod (4) comprises a locking rod mounting portion (401), a locking rod trunk (402) and a locking rod matching portion (403) which are connected in sequence. The locking rod (4) is rotatably arranged via the locking rod mounting portion (401), the locking rod trunk (402) is snap-fitted with the lever (5), and the locking rod matching portion (403) is transmission-matched with the push rod (1).

13. The leakage tripping mechanism according to claim 12, characterized in that: The locking rod (4) further comprises an annular platform (407), the annular platform (407) being arranged on one side of the locking rod mounting portion (401) in the direction of the rotation axis of the locking rod (4); the second reset member (6) is a torsion spring, the spiral body of the torsion spring is sleeved on the annular platform (407), one spring arm is fixedly arranged and the other spring arm cooperates with the locking rod (4).

14. The leakage tripping mechanism according to claim 4, characterized in that: The lever (5) comprises a lever mounting portion (501), a lever locking arm (502) and a lever matching arm (503); the lever (5) is rotatably arranged via the lever mounting portion (501); 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 to be snap-fitted with the locking rod (4); one end of the locking arm connecting portion (5021) is connected to the lever mounting portion (501) and the other end is connected to the lever mounting portion (501). The lever locking portion (5022) is connected to the lever matching arm (503), 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 transmission matching with the push rod (1), one end of the matching arm connecting portion (5031) is connected to the lever mounting portion (501) and the other end is connected to the lever matching portion (5032), and the lever locking arm (502) and the lever matching arm (503) are arranged in sequence along the rotation direction of the lever (5).

15. The leakage tripping mechanism according to claim 14, characterized in that: The lever (5) further comprises a lever hanging spring portion (504), which is arranged on one side of the lever locking arm (502) in the direction of the rotation axis of the lever (5); the energy storage member (7) is a tension spring, one end of which is fixedly arranged and the other end of which is hung on the lever hanging spring portion (504).

16. The leakage tripping mechanism according to claim 4, characterized in that: 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 actuated arm (103), the push rod main plate (101) and the push rod driving arm (104) are connected in sequence; two sets of push rod mounting arms (102) are arranged at intervals relative to each other along the rotation axis direction of the push rod (1) and are respectively connected to a pair of side edges of the push rod main plate (101) by bending; the push rod (1) is rotatably arranged by the push rod mounting arm (102); and the push rod driving arm (104) is used to drive the operating mechanism (11) to release.

17. The leakage tripping mechanism according to claim 1, characterized in that: The leakage tripping mechanism further comprises a lever (2); after the operating mechanism (11) is tripped, the first reset member (3) releases energy and drives the lever (2) to rotate; the push rod (1) is driven by the lever (2) to rotate along a direction d2; and the push rod (1201) is driven by the push rod (1) to reset; during the closing process, the operating mechanism (11) drives the first reset member (3) to store energy via the lever (2); and the rotation axes of the push rod (1) and the lever (2) are parallel.

18. The leakage tripping mechanism according to claim 17, characterized in that: The operating mechanism (11) and the energy storage mechanism are arranged in sequence along direction d3; the push rod (1) and the lever (2) are located between the operating mechanism (11) and the energy storage mechanism in direction d3; the push rod (1), the lever (2) and the energy storage mechanism are located on one side of the magnetic release (12) in direction d4, and the push rod (1201) is arranged to move along direction d4; the push rod (1), the lever (2), the energy storage mechanism and the magnetic release (12) are located on the same side of the operating mechanism (11) in direction d3; the direction d3 and the direction d4 are perpendicular to each other, and both the direction d3 and the direction d4 are perpendicular to the rotation axis direction of the push rod (1) and the lever (2).

19. The leakage tripping mechanism according to claim 18, characterized in that: The operating mechanism (11) comprises a locking member (1102) and a tripping member (1101) that are used in conjunction with each other; the leakage tripping mechanism also comprises a transmission rod (10) that is arranged to move along a direction d3, one end of the transmission rod (10) being transmission-connected to the tripping member (1101) and the other end of the transmission rod (10) being transmission-coordinated with the push rod (1).

20. A switch device, characterized in that: The switch device includes the leakage tripping mechanism described in any one of claims 1-19.

Images