Shell of circuit breaker

Abstract

The utility model relates to the field of low-voltage electric appliances, in particular to a shell of a circuit breaker, a first space, a second space and a third space are sequentially arranged along a direction d1, the first space is used for accommodating a handle and a first wiring device, the third space is used for accommodating a second wiring device, the second space is used for accommodating an operating mechanism, a moving contact, a static contact and an inner shell, and the third space is used for accommodating a third wiring device. The arc extinguish chamber installation cavity, the installation cavity inlet and the installation cavity exhaust port are arranged in the inner shell, the arc extinguish chamber installation cavity is communicated with the external environment only through the installation cavity inlet and the installation cavity exhaust port, and the installation cavity inlet is at least used for allowing one end, provided with a movable contact, of the movable contact to penetrate through and be inserted into the arc extinguish chamber installation cavity. The arc extinguish chamber mounting cavity is used for accommodating the arc extinguish chamber and one end, provided with the static contact, of the static contact; when the shell of the circuit breaker is applied to the circuit breaker, the arc extinguishing performance can be improved, and burning loss of internal parts of the circuit breaker caused by electric arcs can be avoided or reduced.

Description

Technical Field

[0001] The utility model relates to the field of low-voltage electrical appliances, in particular to a housing of a circuit breaker. Background Art

[0002] A circuit breaker is a switching device used to disconnect and connect a load circuit, as well as to cut off a faulty circuit to prevent the accident from expanding, thereby ensuring the safe operation of the load circuit. Among them, a 1U circuit breaker often includes a first circuit (used to control the on and off of the positive pole of the load circuit) and a second circuit (a direct-through circuit for electrically connecting the negative pole of the load circuit).

[0003] The existing 1U circuit breakers have a poor internal layout, often requiring some functions to be sacrificed to meet the overall size requirements of the circuit breaker. In addition, the arc extinguishing system has poor arc extinguishing performance, and arc gas can easily cause burns to the internal components of the circuit breaker. Utility Model Content

[0004] The purpose of the present utility model is to overcome at least one defect of the prior art and provide a circuit breaker housing, which, when applied to the circuit breaker, is conducive to improving arc extinguishing performance and eliminating or reducing arc burning of internal parts of the circuit breaker.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A housing of a circuit breaker, wherein the length direction, width direction and height direction are respectively direction d1, direction d2 and direction d3; the housing comprises an outer shell and an inner shell;

[0007] The shell includes a first space, a second space and a third space arranged in sequence along the direction d1 therein, the first space is used to accommodate the handle and the first wiring device of the circuit breaker, the third space is used to accommodate the second wiring device of the circuit breaker, and of the first wiring device and the second wiring device, one is an incoming terminal and the other is an outgoing terminal. The second space is used to accommodate the operating mechanism, moving contact, static contact and inner shell of the circuit breaker. The inner shell includes an arc extinguishing chamber mounting cavity, a mounting cavity inlet and a mounting cavity exhaust port all arranged therein. The arc extinguishing chamber mounting cavity is connected to the external environment only through the mounting cavity inlet and the mounting cavity exhaust port. The mounting cavity inlet is at least used for allowing the end of the moving contact of the circuit breaker provided with the moving contact to pass through and be inserted into the arc extinguishing chamber mounting cavity. The arc extinguishing chamber mounting cavity is used to accommodate the arc extinguishing chamber of the circuit breaker and the end of the static contact of the circuit breaker provided with the static contact.

[0008] Furthermore, the inner shell is also used to accommodate the operating mechanism and the fourth space of the moving contact and the fifth space for accommodating at least the static contact. The fourth space, the installation cavity inlet and the arc extinguishing chamber installation cavity are arranged in sequence along the direction d1 and are connected in sequence. The first space, the fourth space, the installation cavity inlet, the arc extinguishing chamber installation cavity and the third space are arranged in sequence along the direction d1; a static contact jack is provided on the side wall of the installation cavity inlet for allowing the end of the static contact provided with the static contact point to pass through and enter the arc extinguishing chamber installation cavity.

[0009] Furthermore, the fourth space is also used to accommodate the electric reclosing mechanism of the circuit breaker and the first circuit board assembly of the circuit breaker.

[0010] Furthermore, the inner shell also includes a fifth space for accommodating the thermal trip mechanism of the circuit breaker, and the sixth space is also used to accommodate the magnetic trip mechanism of the circuit breaker. The fifth space and the fourth space are connected to each other through a wire channel, and the wire channel is used for allowing soft wires electrically connected to the thermal trip mechanism and the moving contact respectively to pass through. The fifth space and the sixth space are arranged in sequence along the direction d1 and are connected to each other. The fifth space and the sixth space are located on one side of the fourth space in the direction d2.

[0011] Furthermore, the shell also includes a second gap and a third gap, respectively arranged between the outer shell and the inner shell. The second gap and the third gap are respectively located on both sides of the inner shell in the direction d3. The second gap is used to accommodate the first connecting plate and the manganese-copper shunt respectively connected in series on both sides of the contact system of the circuit breaker, and the third gap is used to accommodate the second connecting plate of the second circuit of the circuit breaker.

[0012] Furthermore, the housing further includes a first gap disposed between the outer housing and the inner housing and arranged side by side with the inner housing along the direction d2 , and the first gap is used to accommodate the second circuit board of the second circuit board assembly of the circuit breaker.

[0013] Furthermore, the shell also includes a terminal block arranged in the first space and arranged side by side with the inner shell along the direction d1, and the terminal block is used to accommodate the first terminal device; the shell also includes a handle mounting cavity arranged between the terminal block and the outer shell and arranged side by side with the terminal block along the direction d3, and the handle mounting cavity is used for the handle of the circuit breaker to be slidably arranged therein.

[0014] Furthermore, the wiring seat includes a wiring hole and a wiring seat retaining wall provided thereon, and the wiring seat retaining wall is located between the wiring hole and the handle mounting cavity in the direction d3.

[0015] Furthermore, the handle mounting cavity is also used to accommodate the anti-force pulling mechanism and the anti-force closing mechanism of the circuit breaker.

[0016] Furthermore, the outer shell includes a first outer half shell and a second outer half shell relatively assembled together along a direction d2; the inner shell includes a first inner half shell and a second inner half shell relatively assembled together along a direction d3.

[0017] Furthermore, the shell also includes heat dissipation holes, and heat dissipation holes are provided on a pair of side walls of the shell perpendicular to the direction d2; the shell also includes guide ribs arranged on its outer surface and used to cooperate with the guide grooves on the shell at the installation position, and the guide ribs extend along the direction d1.

[0018] The housing of the circuit breaker of the present invention provides an independent space for the arc extinguishing chamber, thereby improving the airtightness of the space in which the arc extinguishing chamber is located, which is conducive to increasing the arc voltage and thus improving the arc extinguishing performance. It can also completely eliminate or significantly reduce the possibility of unextinguished arc escaping from the arc extinguishing chamber, thereby preventing other components of the circuit breaker from being burned by the arc.

[0019] In addition, the inner shell first assembles the operating mechanism, electric reclosing mechanism, contact system, thermal trip mechanism, magnetic trip mechanism and arc extinguishing mechanism of the arc extinguishing system together, and then installs them into the outer shell as a whole, which is conducive to improving installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the switch device of the utility model;

[0021] Figure 2 This is an exploded view of the switch device of the present invention;

[0022] Figure 3 This is a cross-sectional view of the switchgear of the utility model in the open state;

[0023] Figure 4 yes Figure 3 A schematic diagram of the enlarged structure of part I;

[0024] Figure 5 It is a cross-sectional view of the switch device of the utility model in the closed state;

[0025] Figure 6 This utility model Figure 5 Schematic diagram of the enlarged structure of part II;

[0026] Figure 7 This is a schematic structural diagram of the switch device of the present invention with the second outer half shell removed;

[0027] Figure 8 This is a schematic structural diagram of the switch device of the present invention with the housing removed;

[0028] Figure 9 It is a structural schematic diagram of the loop structure of the first circuit and the loop structure of the second circuit of the utility model;

[0029] Figure 10 It is a structural diagram of the shell of the utility model;

[0030] Figure 11 This is an exploded view of the housing of the utility model;

[0031] Figure 12 It is a schematic diagram of the structure of the handle of the utility model under two viewing angles;

[0032] Figure 13 It is a structural diagram of the indicator of the utility model;

[0033] Figure 14 This is a structural diagram of the light guide column of the utility model;

[0034] Figure 15 The handle of the utility model is in the handle closing position (such as Figure 15 (151)) and the handle opening position (as shown Figure 15 (152) shows the schematic diagram of the structure of the indicating mechanism;

[0035] Figure 16 This is a schematic diagram of the structure of the anti-strong closing component of the utility model;

[0036] Figure 17 The utility model is a strong closing device in the strong closing device locking position (such as Figure 17 (171)) and the unlocked position of the anti-strong closing member (as shown in Figure 17 (172) Schematic diagram of the structure;

[0037] Figure 18 This is an exploded view of the anti-strong pulling mechanism of the utility model;

[0038] Figure 19 The handle of the utility model is in the handle closing position (such as Figure 19 (191)) and the handle opening position (as shown Figure 19 (192) shows a schematic diagram of a structure of an implementation method of an anti-strong pulling mechanism;

[0039] Figure 20 The handle of the utility model is in the handle closing position (such as Figure 20 (201)) and the handle opening position (as shown Figure 20 (202) shows a schematic diagram of another implementation of the anti-strong pulling mechanism;

[0040] Figure 21 This is a schematic diagram of the structure of the wiring socket of the utility model, wherein the first wiring hole and the second wiring hole adopt the first arrangement mode;

[0041] Figure 22 This is a schematic diagram of an arrangement of the first and second terminal types of the present invention, corresponding to the first arrangement of the first and second wiring holes;

[0042] Figure 23 It is a schematic diagram of the structure of the utility model terminal block under two viewing angles;

[0043] Figure 24 This is a structural diagram of the wiring socket of the utility model, wherein the first wiring hole and the second wiring hole adopt the second arrangement mode;

[0044] Figure 25 This is a schematic diagram of another arrangement of the first and second terminal types of the present invention, corresponding to the second arrangement of the first and second wiring holes;

[0045] Figure 26 It is a schematic diagram of the lock component of the utility model being driven by the magnetic release mechanism to release the lock component and the third connecting rod from having a hasp fit, and a schematic diagram of the lock component being driven by the thermal release mechanism to release the lock component and the third connecting rod from having a hasp fit;

[0046] Figure 27 This is a schematic diagram of the structure of the operating mechanism of the utility model driving the moving contact to the disconnected position after the operating mechanism is tripped;

[0047] Figure 28 This is a schematic structural diagram of the utility model's rotating shaft, moving contact, protective plate and contact spring in an assembled state;

[0048] Figure 29 It is a structural diagram of the protective plate of the utility model;

[0049] Figure 30 This is an exploded view of the thermal trip mechanism of the utility model;

[0050] Figure 31 This is an exploded view of the magnetic tripping mechanism of the utility model;

[0051] Figure 32 This is a structural diagram of one implementation of the arc extinguishing chamber of the utility model;

[0052] Figure 33 This is a structural diagram of another implementation of the arc extinguishing chamber of the utility model;

[0053] Figure 34 This is a schematic structural diagram of the second connecting plate, manganese-copper shunt and first busbar clamp of the utility model in an assembled state;

[0054] Figure 35 It is a structural diagram of the locking component of the utility model.

[0055] Description of Reference Numerals

[0056] The shell w of the mounting position;

[0057] Housing 1a, first space r1, second space r2, third space r3, fourth space r4, fifth space r5, sixth space r6, first outer half shell 1-1a, indicator drive portion 1-11a, anti-strong pulling member mounting platform 1-12a, anti-strong pulling member shaft hole 1-120a, second outer half shell 1-2a, locking side wall 1-21a, first matching portion 1-22a, guide rib 1-23a, first socket 1-3a, second socket 1-4a, signal socket 1-5a, external adjustment hole 1-6a, first locking hole 1-7a, second locking hole 1-8a, heat dissipation hole 1-9a, mounting port 1-10a;

[0058] Inner shell 2a, first inner half shell 2-1a, first spring stopper 2-11a, second spring stopper 2-12a, first shaft column 2-13a, first half chamber 2-14a, second inner half shell 2-2a, second half chamber 2-24a, arc extinguishing chamber mounting chamber 2-3a, mounting chamber inlet 2-4a, mounting chamber exhaust port 2-5a, static contact socket 2-6a;

[0059] Hole cover 3a;

[0060] Handle 1b, handle operating end 1-1b, indicator hole 1-2b, indicator shaft hole 1-3b, indicator mounting hole 1-4b, handle connecting protrusion 1-5b, first locking protrusion 1-6b, indicator mounting cavity 1-7b, first unlocking protrusion 1-8b, handle locking wall 1-9b, handle avoidance hole 1-10b;

[0061] Indicating agencyi;

[0062] Indicator 2b, indicating portion 2-1b, indicator connecting portion 2-2b, indicator mounting portion 2-3b, indicator actuated portion 2-4b, closing actuated portion 2-41b, opening actuated portion 2-42b;

[0063] Light guide column 3b, light guide column outer section 3-1b, light guide column middle section 3-2b, light guide column inner section 3-3b, light guide column assembly groove 3-4b;

[0064] Anti-forced closing mechanism 4b, anti-forced closing member 4-1b, anti-forced closing member protrusion 4-11b, anti-forced closing member chamfer 4-111b, anti-forced closing member limiting portion 4-12b, anti-forced closing member locking portion 4-13b, first reset member 4-2b;

[0065] Anti-force pulling mechanism 5b, anti-force pulling member 5-1b, anti-force pulling member protrusion 5-11b, anti-force pulling member connecting portion 5-12b, anti-force pulling member mounting portion 5-13b, anti-force pulling member shaft 5-14b, anti-force pulling member limiting groove 5-15b, auxiliary unlocking portion 5-16b, anti-force pulling member locking surface 5-17b, anti-force pulling member unlocking portion 5-18b, second reset member 5-2b, second reset member inner plate 5-21b, second reset member outer plate 5-22b;

[0066] Wiring device 6b, terminal block 6-1b, terminal block body 6-11b, wiring side wall 6-111b, terminal cavity 6-12b, terminal cavity insertion hole 6-120b, wiring hole 6-13b, first wiring hole 6-131b, second wiring hole 6-132b, operation hole 6-14b, first operation hole 6-141b, second operation hole 6-142b, terminal block retaining wall 6-15b, wiring terminal 6-2b, type I terminal 6-21b, wiring frame 6-211b, wide portion 6-2111b, narrow portion 6-2112b, wire pressing side wall 6-2113b, wide portion side wall 6-2114b, narrow portion side wall 6-2115b, screw mounting wall 6-2116b, wiring screw 6-212b, wire pressing piece 6-213b, type II terminal 6-22b;

[0067] Operating mechanism 7b, front connecting rod 7-1b, second rotating shaft 7-2b, trigger finger 7-21b, opening positioning part 7-22b, closing positioning part 7-23b, energy storage matching part 7-24b, rear connecting rod 7-3b, first rotating shaft structure 7r, first rotating shaft 7-4b, first rotating shaft body 7-41b, first rotating shaft mounting groove 7-411b, protective plate mounting groove 7-412b, moving contact movable groove 7-413b, center column 7-414b, moving contact jack 7-415b, installation Grooved side wall 7-416b, first rotating shaft matching portion 7-42b, third connecting rod 7-5b, locking component 7-6b, locking body 7-61b, force-bearing member body 7-611b, locking member 7-612b, force-bearing member 7-64b, first matching arm 7-62b, second matching arm 7-63b, locking spring 7-7b, main reset member 7-8b, second rotating shaft reset member 7-9b, contact spring 7-10b, protective plate 7-11b, protective plate mounting hole 7-111b;

[0068] Electric reclosing mechanism 8b, motor 8-1b, gear transmission structure 8s, first gear 8-2b, second gear 8-3b, third gear 8-4b, driving gear 8-5b;

[0069] Thermal trip mechanism 9b, bimetallic component 9-123b, bimetallic strip 9-1b, bimetallic avoidance hole 9-11b, connector 9-2b, connector jack 9-21b, connector hole 9-22b, adjustment screw 9-3b, thermal element 9-4b, traction rod 9-5b, traction rod mounting portion 9-51b, traction rod first arm 9-52b, traction rod second arm 9-53b;

[0070] Magnetic tripping mechanism 10b, armature piece 10-1b, main armature 10-11b, main armature plate 10-111b, armature transmission arm 10-112b, transmission arm connecting plate 10-1121b, transmission arm driving plate 10-1122b, auxiliary armature 10-12b, yoke piece 10-2b, yoke 10-21b, magnetizing plate 10-22b, armature return spring 10-3b, armature guide rod 10-4b;

[0071] Contact system 11b, moving contact 11-1b, moving contact plate 11-11b, moving contact plate connecting section 11-111b, moving contact plate bearing section 11-112b, moving contact point 11-12b, stationary contact 11-2b, stationary contact point 11-21b, stationary contact plate 11-22b, first stationary contact plate section 11-221b, second stationary contact plate section 11-222b, and third stationary contact plate section 11-223b;

[0072] Arc extinguishing mechanism 12b, arc extinguishing chamber 12-1b, arc extinguishing grid 12-11b, arc extinguishing chute 12-12b, gas generating plate 12-13b, moving contact arc striking plate 12-2b, first matching section 12-21b, first middle section 12-22b, first tail section 12-23b, static contact arc striking plate 12-3b, freeing plate 12-4b, exhaust duct 12-5b, first exhaust duct section 12-51b, second exhaust duct section 12-52b;

[0073] Manganese copper shunt 13b, first copper plate 13-1b, manganese copper plate 13-2b, connecting boss 13-20b, second copper plate 13-3b;

[0074] First connecting plate 14b, first connecting main plate 14-1b, first connecting end plate 14-2b;

[0075] First busbar clamp 15b;

[0076] Equipotential column 16b;

[0077] First connecting plate 17b;

[0078] A second connecting plate 18b;

[0079] Second connecting plate 1c, second connecting main plate 1-1c, second connecting end plate 1-2c;

[0080] Second busbar clamp 2c;

[0081] Circuit board device p;

[0082] A first circuit board assembly 1p, a first circuit board 1-1p, a first connector 1-2p, and a first micro switch 1-3p;

[0083] Second circuit board assembly 2p, second circuit board 2-1p, second connector 2-2p, second micro switch 2-3p, first sampling terminal 2-4p, connector 2-5p. DETAILED DESCRIPTION

[0084] The following embodiments are combined with the accompanying drawings to further illustrate the specific implementation of the switch device of the present invention. The switch device of the present invention is not limited to the description of the following embodiments.

[0085] The utility model discloses a switch device, specifically a circuit breaker. Further, the circuit breaker is a plug-in circuit breaker. Further, the circuit breaker is a 1U circuit breaker.

[0086] like Figure 1-3 , 5, 7-11 are an embodiment of the switch device of the present invention. The switch device of this embodiment is a single-pole switch device, which includes a housing and a first circuit and a second circuit arranged in the housing; the first circuit is a negative circuit, and the first circuit preferably includes a breakpoint (for example, a breakpoint that can be opened and closed, composed of a moving contact and a static contact), that is, the conduction and disconnection of the first circuit can be controlled by controlling the closing and opening of the breakpoint; the second circuit is a positive circuit, and the second circuit is preferably a straight-through circuit. "Straight-through circuit" means that there is no breakpoint (for example, a breakpoint that can be opened and closed, composed of a moving contact and a static contact) in the second circuit, and it always remains in a conducting state. Furthermore, in actual use of the switch device of this embodiment, the two ends of the first circuit are used to connect the negative conductor on the power supply side and the negative conductor on the load side, and the two ends of the second circuit are respectively used to connect the positive conductor on the power supply side and the positive conductor on the load side.

[0087] Furthermore, the length direction, width direction and height direction of the switch device of the present invention are direction d1, direction d2 and direction d3 respectively, and direction d1, direction d2 and direction d3 are perpendicular to each other; the length direction, width direction and height direction of the shell are respectively the same as direction d1, direction d2 and direction d3.

[0088] Further, such as Figure 1-2As shown in Figures 10-11, the housing includes an outer shell 1a, and the first and second circuits are both disposed within the outer shell 1a. The length, width, and height of the outer shell 1a are respectively aligned with directions d1, d2, and d3. Specifically, the outer shell 1a includes a first outer half shell 1-1a and a second outer half shell 1-2a that are relatively assembled along direction d2.

[0089] Specifically, in the switch device of the present invention, the size of the housing 1a in the direction d2 is larger than the size of the housing 1a in the direction d3, and the size of the housing 1a in the direction d1 is larger than the size of the housing 1a in the direction d2.

[0090] Further, such as Figure 1-3 , 5, 7-11, the first circuit includes an operating system, a contact system 11b and an arc extinguishing mechanism 12b, the operating system includes a handle 1b and an operating mechanism 7b, the handle 1b is slidably arranged in the housing (specifically, the handle 1b is slidably arranged in the housing 1a) and switches between the handle closing position and the handle opening position by reciprocating sliding, the contact system 11b includes a moving contact 11-1b and a static contact 11-2b used in conjunction with each other, the handle 1b is transmission-connected to the operating mechanism 7b, and the operating mechanism 7b is transmission-connected to the moving contact 11-1b; when the handle 1b slides to the handle closing position, the handle 1b switches between the handle closing position and the handle opening position by reciprocating sliding. The operating mechanism 7b drives the moving contact 11-1b to the closed position and closes with the static contact 11-2b, that is, the switch device completes the closing operation, and the operating mechanism 7b and the switch device switch from the open state to the closed state; when the handle 1b slides to the handle open position, the handle 1b drives the moving contact 11-1b to the disconnected position through the operating mechanism 7b and disconnects with the static contact 11-2b, that is, the switch device completes the opening operation, and the operating mechanism 7b and the switch device switch from the closed state to the open state; the arc extinguishing mechanism 12b cooperates with the contact system 11b to extinguish the arc generated by the closing and opening of the contact system 11b. The handle 1b is pressed by an external force to slide into the housing 1a and switch to the handle closed position. The handle 1b is pulled by an external force to slide out of the housing 1a and switch to the handle open position. It should be pointed out that the handle 1b is not limited to a sliding setting. The handle 1b can also be rotated. The handle 1b drives the switch device to close and open through the operating mechanism 7b by reciprocating rotation.

[0091] Further, such as Figure 3 、 5 As shown in Figures 9 and 9, the moving contact 11-1b and the static contact 11-2b are arranged opposite to each other along the direction d2.

[0092] Specifically, the moving contact 11 - 1b includes a moving contact plate 11 - 11b and a moving contact point 11 - 12b. One end of the moving contact plate 11 - 11b is transmission-connected to the operating mechanism 7b and the other end is provided with the moving contact point 11 - 12b.

[0093] Specifically, the static contact 11-2b includes a static contact plate 11-22b and a static contact point 11-21b, the static contact plate 11-22b includes a first static contact plate segment 11-221b, a second static contact plate segment 11-222b and a third static contact plate segment 11-223b that are bent and connected in sequence, the static contact point 11-21b is arranged on the first static contact plate segment 11-221b, the first static contact plate segment 11-221b and the third static contact plate segment 11-223b are arranged opposite to each other along the direction d2 and relative to the second static contact plate segment 11-222b. b is bent toward the same side thereof, that is, the static touch plate 11-22b is a U-shaped structure as a whole, the first section 11-221b of the static touch plate and the third section 11-223b of the static touch plate are respectively connected to the two ends of the second section 11-222b of the static touch plate by bending, the first section 11-221b of the static touch plate and the third section 11-223b of the static touch plate are located on the same side of the second section 11-222b of the static touch plate, and the third section 11-223b of the static touch plate and the static contact point 11-21b are respectively located on both sides of the first section 11-221b of the static touch plate in the direction d2.

[0094] Further, such as Figure 2-3As shown in Figures 5 and 8, the operating mechanism 7b includes a second rotating shaft 7-2b, a rear connecting rod 7-3b, a first rotating shaft structure 7r and a main reset member 7-8b. The second rotating shaft 7-2b is rotatably arranged, and the handle 1b is driven by the second rotating shaft 7-2b to rotate (that is, the handle 1b switches between the handle closing position and the handle opening position by reciprocating sliding to drive the second rotating shaft 7-2b to rotate reciprocally, and the second rotating shaft 7-2b switches between the second rotating shaft closing position and the second rotating shaft opening position). The rotating shaft 7-2b drives the first rotating shaft structure 7r to rotate through the rear connecting rod 7-3b and the first rotating shaft structure 7r (that is, the second rotating shaft 7-2b switches between the second rotating shaft closing position and the second rotating shaft opening position by reciprocating rotation, and the first rotating shaft structure 7r switches between the first rotating shaft structure closing position and the first rotating shaft structure opening position). The first rotating shaft structure 7r includes a third connecting rod 7-3b that is respectively rotatably arranged and snap-fitted. 5b and the locking component 7-6b, the first rotating shaft structure 7r is connected to the moving contact 11-1b by transmission, and the main reset component 7-8b acts on the first rotating shaft structure 7r to drive the moving contact 11-1b to move toward the disconnected position. That is, the main reset component 7-8b acts on the first rotating shaft structure 7r to drive the moving contact 11-1b to move toward the opening position of the first rotating shaft structure. For example, when the handle 1b drives the operating mechanism 7b to perform the opening operation or after the operating mechanism 7b is tripped, the main reset component 7-8b acts on the first rotating shaft structure 7r to drive the moving contact 11-1b to move toward the disconnected position. The first rotating shaft structure 7r applies a force to rotate the second rotating shaft 7-2b toward the opening position of the first rotating shaft structure, thereby driving the moving contact 11-1b to the disconnected position. When the operating mechanism 7b is normally opening and closing (that is, when the second rotating shaft 7-2b is driven by an external force—the external force comes from the handle 1b or the electric reclosing mechanism 8b mentioned later—to rotate and drive the moving contact 11-1b and the static contact 11-2b to close and open via the first rotating shaft structure 7r), the third connecting rod 7-5b and the locking component 7-6b maintain a snap-fit ​​fit. Furthermore, the operating mechanism 7b also includes a front connecting rod 7-1b, through which the handle 1b is connected to the second rotating shaft 7-2b for transmission, thereby driving the second rotating shaft 7-2b to rotate.Furthermore, the first rotating shaft structure 7r also includes a first rotating shaft 7-4b and a lock spring 7-7b that are rotatably arranged. The first rotating shaft structure 7r is rotatably arranged through the first rotating shaft 7-4b, and the third connecting rod 7-5b and the lock component 7-6b are rotatably arranged on the rotating shaft 7-4b respectively. The second rotating shaft 7-2b is transmission-connected to the third connecting rod 7-5b through the rear connecting rod 7-3b, and the first rotating shaft 7-4b is transmission-connected to the moving contact 11-1b. The main reset member 7-8b acts on the first rotating shaft 7-4b to enable the first rotating shaft structure 7r to drive the moving contact. The main reset member 7-8b is a compression spring, one end of which is engaged with the first shaft 7-4b and the other end is engaged with the housing (specifically, the inner shell 2a of the housing). Furthermore, the rotation axis directions of the second rotation axis 7-2b, the first rotation axis structure 7r, the first rotation axis 7-4b, the third connecting rod 7-5b and the locking component 7-6b are all parallel to the direction d3; the rotation axis direction of the moving contact 11-1b is parallel to the direction d3, and the rotation plane of the moving contact 11-1b is parallel to the direction d1 and the direction d2 and perpendicular to the direction d3, so that the moving contact 11-1b can rotate within a larger angle range, thereby improving the breaking capacity of the switching device of the utility model.

[0095] Specifically, the handle 1b includes a handle connecting protrusion 1-5b, which is rotatably connected to one end of the front connecting rod 7-1b, and the other end of the front connecting rod 7-1b is rotatably connected to the third connecting rod 7-5b. The lock spring 7-7b is a torsion spring mounted on the rotating shaft of the lock component 7-6b, and its two spring arms respectively cooperate with the lock component 7-6b and the first rotating shaft 7-4b.

[0096] Furthermore, as shown in 3-6, the operating mechanism 7b also includes a second rotating shaft reset member 7-9b, which acts on the second rotating shaft 7-2b to make it have a rotation tendency to drive the operating mechanism 7b to open the gate, that is, the second rotating shaft reset member 7-9b acts on the second rotating shaft 7-2b to make it have a tendency to rotate toward the second rotating shaft opening position.

[0097] Specifically, the second rotating shaft reset member 7-9b is a torsion spring, which is sleeved on the rotating shaft of the second rotating shaft 7-2b, one spring arm cooperates with the second rotating shaft 7-2b, and the other spring arm is fixedly set (for example, the spring arm cooperates with the shell to achieve a fixed setting). Furthermore, the shell also includes a first shaft column 2-13a and a first spring limiting portion 2-11a and a second spring limiting portion 2-12a arranged around the first shaft column 2-13a. One end of the rotating shaft of the second rotating shaft 7-2b is inserted into the first shaft column 2-13a. The second rotating shaft 7-2b includes a second rotating shaft hole arranged therein and with an open end opposite to the first shaft column 2-13a, and an energy storage matching portion 7-24b arranged on the inner side wall of the second rotating shaft hole. The second rotating shaft reset member 7-9b The spiral body 7-90b, the first spring limiting portion 2-11a and the second spring limiting portion 2-12a are all located in the second rotating shaft hole, one spring arm cooperates with the first spring limiting portion 2-11a and the spring arm is a fixed arm 7-91b, and the other spring arm cooperates with the second spring limiting portion 2-12a and the spring arm is a movable arm 7-92b; when the switch device is closed (that is, when the operating mechanism 7b performs the closing operation), the second rotating shaft 7-2b rotates toward the second rotating shaft closing position (that is, when the second rotating shaft 7-2b rotates toward the second rotating shaft closing position). Figure 4 、 6 In the direction shown, when the second rotating shaft 7-2b rotates counterclockwise) the energy storage matching portion 7-24b drives the movable arm 7-92b to move so that the second rotating shaft reset member 7-9b stores energy, and the second rotating shaft 7-2b finally rotates to the second rotating shaft closing position; when the switching device is opened (that is, when the operating mechanism 7b performs the opening operation), the second rotating shaft reset member 7-9b releases energy and presses the energy storage matching portion 7-24b through the movable arm 7-92b to rotate the second rotating shaft 7-2b to the second rotating shaft opening position (that is, as shown). Figure 4 、 6In the direction shown, the second rotating shaft 7-2b rotates clockwise), and the second rotating shaft 7-2b eventually rotates to the second rotating shaft opening position. Furthermore, when the switching device is opened, the movable arm 7-92b eventually moves to cooperate with the second spring limiting portion 2-12a; when the switching device is in the opening state (that is, the operating mechanism 7b is in the opening state), the second rotating shaft 7-2b is in the second rotating shaft opening position, the movable arm and the second spring limiting portion 2-12a are limited and cooperate, and the energy storage cooperation portion 7-24b and the movable arm 7-92b are only in contact with each other without any force acting on each other or there is a gap between the two, so that the first rotating shaft 7-4b can be installed in place without overcoming the force of the second rotating shaft reset member 7-9b. Furthermore, the second rotating shaft 7-2b also includes an opening positioning portion 7-22b and a closing positioning portion 7-23b, which are arranged around the rotation center of the second rotating shaft 7-2b. The first spring limiting portion 2-11a is located between the opening positioning portion 7-22b and the closing positioning portion 7-23b in the rotation direction of the second rotating shaft 7-2b. When the switching device completes opening (that is, when the second rotating shaft 7-2b is in the opening position of the second rotating shaft), the opening positioning portion 7-22b and the first spring limiting portion 2-11a are limited and cooperated. When the switching device completes closing (that is, when the second rotating shaft 7-2b is in the closing position of the second rotating shaft), the closing positioning portion 7-23b and the first spring limiting portion 2-11a are limited and cooperated. The opening positioning portion 7-22b and the closing positioning portion 7-23b cooperate with the first spring limiting portion 2-11a to reliably and accurately limit the rotation stroke of the second rotating shaft 7-2b, thereby ensuring the reliable and stable operation of the operating mechanism 7b. Furthermore, the opening positioning portion 7-22b and the closing positioning portion 7-23b are both arranged on the inner side wall of the second rotating shaft hole; the first spring limiting portion 2-11a, the second spring limiting portion 2-12a and the first shaft column 2-13a are all arranged on the inner shell 2a of the shell.

[0098] Furthermore, when the operating system is in the open state, the second rotating shaft 7-2b is in the second rotating shaft open position and triggers the first microswitch 1-3p of the circuit board device p to switch to the first operating state. When the operating system switches to the closed state, the second rotating shaft 7-2p rotates toward the second rotating shaft closed position, releasing the first microswitch 1-3p, and the first microswitch 1-3p switches to the second operating state. The switching of the first microswitch 1-3p between the first and second operating states and the output of the signal facilitate remote monitoring of the position of the second rotating shaft 7-2p, thereby realizing remote monitoring of the open and closed states of the switch device of the utility model.

[0099] Specifically, the first microswitch 1-3p is disposed on a radially opposite side of the second rotating shaft 7-2b. The first microswitch 1-3p is disposed on the first circuit board 1-1p of the first circuit board assembly 1p. The second rotating shaft 7-2b includes a trigger finger 7-21b, which rotates synchronously with the second rotating shaft 7-2b to trigger and release the first microswitch 1-3p. The second rotating shaft 7-2b directly engages with the first microswitch 1-3p via the trigger finger 7-21b, ensuring stable and reliable engagement between the second rotating shaft 7-2b and the first microswitch 1-3p. The first microswitch 1-3p includes a first operating rod or a first operating protrusion, and the trigger finger 7-21b presses the first operating rod or the first operating protrusion to switch the first microswitch 1-3p to the first working state, and the trigger finger 7-21b releases the first operating rod or the first operating protrusion to switch the first microswitch 1-3p to the second working state; the trigger finger 7-21b is arranged on one axial end of the second rotating shaft 7-2b and extends radially toward the first shaft column 2-13a.

[0100] like Figures 28-29 As shown, this is an assembly method of the first rotating shaft 7-4b and the moving contact 11-1b:

[0101] One end of the moving contact 11-1b is inserted into the first rotating shaft 7-4b and the moving contact 11-1b is rotated relative to the first rotating shaft 7-4b; the operating system also includes a contact spring 7-10b, which acts on the moving contact 11-1b to limit it with the first rotating shaft 7-4b. When the moving contact 11-1b and the static contact 11-2b are closed, the moving contact 11-1b rotates relative to the first rotating shaft 7-4b to compress the contact spring 7-10b, and the force of the contact spring 7-10b makes the moving contact 11-1b and the static contact 11-2b reliably contact each other; the first rotating shaft 7-4b includes a first rotating shaft body 7-41b, and the first rotating shaft body 7-41b includes a first rotating shaft mounting body arranged therein Slot 7-411b, the first rotating shaft mounting groove 7-411b is provided with a mounting groove opening for the contact spring 7-10b to be installed therein, and the mounting groove opening is arranged on one axial end of the first rotating shaft 7-4b (specifically, one axial end of the first rotating shaft body 7-41b), and the contact spring 7-10b is arranged in the first rotating shaft mounting groove 7-411b and cooperates with the moving contact 11-1b and the first rotating shaft 7-4b respectively; the side wall of the first rotating shaft mounting groove 7-411b is the mounting groove side wall 7-416b, and the mounting groove side wall 7-416b is provided with a moving contact socket 7-415b for the moving contact 11-1b to pass through, and the moving contact 11-1b swings in the moving contact socket 7-415b when it rotates relative to the first rotating shaft 7-4b. The first rotating shaft structure 7r further includes a protective plate 7-11b disposed on the movable contact 11-1b and moving synchronously therewith. The protective plate 7-11b always blocks the movable contact socket 7-415b. That is, the protective plate 7-11b blocks the movable contact socket 7-415b when the movable contact 11-1b is relatively stationary with the first rotating shaft 7-4b, and the protective plate 7-11b also blocks the movable contact socket 7-415b when the movable contact 11-1b rotates relative to the first rotating shaft 7-4b. Furthermore, the shape of the movable contact socket 7-415b is adapted to the movement trajectory of the movable contact 11-1b when it rotates relative to the first rotating shaft 7-4b. The contact spring 7-10b acts on the movable contact 11-1b to limit the engagement with one end of the movable contact socket 7-415b. In order to achieve the assembly of the moving contact 11-1b and the first rotating shaft 7-4b, the size of the moving contact socket 7-415b in the axial direction of the first rotating shaft 7-4b must be sufficient to allow the end of the moving contact 11-1b provided with the moving contact point 11-12b to pass through smoothly.

[0102] The benefits brought by the protective plate 7-11b are: it can effectively prevent or significantly reduce the entry of charged particles into the first shaft mounting groove 7-411b, thereby avoiding or significantly reducing damage to the contact spring 7-10b and other components, and ensuring that the moving contact 11-1b and the static contact 11-2b are reliably closed.

[0103] Specifically, the third connecting rod 7-5b and the locking component 7-6b are both arranged on one axial end of the first rotating shaft 7-4b (specifically, one axial end of the first rotating shaft body 7-41b), and the first rotating shaft mounting groove 7-411b is arranged on the other axial end of the first rotating shaft 7-4b (specifically, the other axial end of the first rotating shaft body 7-41b); the first rotating shaft mounting groove 7-411b is an annular side wall.

[0104] Specifically, the mounting groove sidewall 7-416b further includes a protective plate mounting groove 7-412b for the protective plate 7-11b to be movably mounted therein, and the protective plate mounting groove 7-412b is located on a radial side of the first rotating shaft mounting groove 7-411b. Furthermore, the protective plate 7-11b is an arc-shaped plate, and a protective plate mounting hole 7-111b is provided in its center. The protective plate 7-11b is mounted on the moving contact 11-1b through the anti-slip plate mounting hole 7-111b. The shape of the anti-slip plate mounting hole 7-111b is adapted to the moving contact 11-1b to minimize the gap between the moving contact 11-1b and the side edge of the anti-slip plate mounting hole 7-111b; the protective plate mounting groove 7-412b is an arc-shaped groove.

[0105] Specifically, the contact spring 7-10b is a torsion spring, the first rotating shaft 7-4b includes a center column 7-414b arranged in the first rotating shaft mounting groove 7-411b, the torsion spring is sleeved on the center column 7-414b and its two spring arms are respectively matched with the first rotating shaft 7-4b and the moving contact 11-1b; the contact spring 7-10b acts on the moving contact 11-1b to make it limit and match with the first rotating shaft 7-4b; when the switch device of the present invention is closed, the first rotating shaft 7-4b drives the moving contact 11-1b to rotate until the moving contact 11-1b is in contact with the static contact 11-2b, and the first rotating shaft 7-4 b continues to rotate by an angle, causing the first rotating shaft 7-4b and the moving contact 11-1b to rotate relative to each other and causing the contact spring 7-10b to store energy, achieving overtravel. The force exerted by the contact spring 7-10b on the moving contact 11-1b causes the moving contact 11-1b to reliably close with the static contact 11-2b. When the switch device of the utility model is opened, the first rotating shaft 7-4b and the moving contact 11-1b first rotate relative to each other. The moving contact 11-1b, under the action of the contact spring 7-10b, resumes its limited engagement with the first rotating shaft 7-4b. Then, the moving contact 11-1b, driven by the first rotating shaft 7-4b, moves to the disconnected position. Furthermore, the central column 7-414b is coaxially arranged with the first rotating shaft 7-4b.

[0106] Furthermore, the center column 7-414b also serves as the rotation axis of the first rotating shaft 7-4b and is rotatably connected to the housing; specifically, the center column 7-414b is rotatably arranged on the inner housing 2a. Furthermore, the rotation center of the moving contact 11-1b relative to the first rotating shaft 7-4b coincides with the rotation center of the first rotating shaft 7-4b, and the moving contact 11-1b is rotatably sleeved on the center column 7-414b. Furthermore, the side wall 7-416b of the mounting groove is further provided with a moving contact movable groove 7-413b, and one end of the moving contact 11-1b ( Figure 28 The free end of the movable contact plate connecting section 11-111b of the movable contact 11-1b shown is used to connect to a wire to connect the movable contact 11-1b to the corresponding circuit. This end of the movable contact 11-1b is movably arranged in the movable contact movable groove 7-413b. During assembly, the end of the movable contact 11-1b provided with the movable contact point 11-12 passes through the movable contact socket 7-415b, and the movable contact 11-1b is sleeved on the center column 7-414b, so that the free end of the movable contact plate connecting section 11-111b is placed in the movable contact movable groove 7-413b. Furthermore, the movable contact socket 7-415b and the movable contact movable groove 7-413b are arranged at both axial ends of the first rotating shaft 7-4b. Furthermore, the moving touch plate 11-11b of the moving contact 11-1b includes a moving touch plate bearing section 11-112b and a moving touch plate connecting section 11-111b, one end of the moving touch plate bearing section 11-112b is connected to one end of the moving touch plate connecting section 11-111b, and a moving contact shaft hole is provided at the connection between the two. The moving contact 11-1b is sleeved on the center column 7-414b through the moving contact shaft hole, and the other end of the moving touch plate bearing section 11-112b is provided with a moving contact point 11-12b, and the other end of the moving touch plate connecting section 11-111b is movably set in the moving contact movable groove 7-413b.

[0107] Further, such as Figure 2-3 As shown in Figures 5 and 8, the operating system further includes an electric reclosing mechanism 8b, which is in transmission cooperation with the handle 1b or the second rotating shaft 7-2b to drive the operating mechanism 7b to open or close. In this embodiment, the electric reclosing mechanism 8b is preferably in transmission cooperation with the second rotating shaft 7-2b. Further, the electric reclosing mechanism 8b includes a motor 8-1b and a gear transmission structure 8s that are in transmission cooperation with each other. The gear transmission structure 8s is also in transmission cooperation with the second rotating shaft 7-2b to drive it to rotate, so as to drive the operating mechanism 7b to reclose. The electric reclosing mechanism 8b is conducive to realizing remote closing and remote opening of the switch device of the utility model.

[0108] Specifically, the gear transmission structure 8s includes a drive gear 8-5b, which cooperates with the second rotating shaft 7-2b to drive the second rotating shaft 7-2b to rotate, thereby driving the operating mechanism 7b to reclose the switch. Furthermore, the drive gear 8-5b and the second rotating shaft 7-2b are coaxially arranged to rotate synchronously. Furthermore, the drive gear 8-5b and the second rotating shaft 7-2b are integral or separate structures. In this embodiment, the drive gear 8-5b and the second rotating shaft 7-2b are preferably integral. Furthermore, the gear transmission structure 8s includes an output gear, an intermediate gear group and a driving gear 8-5b that are meshed in sequence. The output gear is arranged to rotate coaxially with the output shaft of the motor 8-1b (for example, the output gear is fixedly connected to the output shaft). The intermediate gear group includes a first gear 8-2b, a second gear 8-3b, and a third gear 8-4b that are meshed in sequence. The output gear is meshed with the first gear 8-2b, the third gear 8-4b is meshed with the driving gear 8-5b, and the driving gear 8-5b is matched with the second rotating shaft 7-2b. The first gear 8-2b, the second gear 8-3b, and the third gear 8-4b are all double gears, each of which includes a small-diameter gear and a large-diameter gear arranged to rotate coaxially and synchronously. The output gear meshes with the large-diameter gear of the first gear 8-2b, the small-diameter gear of the first gear 8-2b meshes with the large-diameter gear of the second gear 8-3b, the small-diameter gear of the second gear 8-3b meshes with the large-diameter gear of the third gear 8-4b, and the small-diameter gear of the third gear 8-4b meshes with the drive gear 8-5b. The axial direction of each gear of the gear transmission structure 8s is parallel to the direction d3. It should be noted that the number of gears included in the intermediate gear set can be adjusted according to actual needs, and the number of gears included in the intermediate gear set is at least one.

[0109] Further, such as Figure 2 、 7 -8, the switch device also includes a first wiring component and a second wiring component arranged in the shell, and of the first wiring component and the second wiring component, one is an outgoing wiring component and the other is an incoming wiring component; the first wiring component includes a first negative wiring component and a first positive wiring component, and the second wiring component includes a second negative wiring component and a second positive wiring component, and the first negative wiring component and the second negative wiring component are respectively connected in series at both ends of the first circuit (i.e., the negative circuit), that is, the first circuit is connected to the corresponding external circuit through the first negative wiring component and the second negative wiring component, and the first positive wiring component and the second positive wiring component are respectively connected in series at both ends of the second circuit (i.e., the positive circuit / through circuit), and the second circuit is connected to the corresponding external circuit through the first positive wiring component and the second positive wiring component.

[0110] Specifically, the first and second wiring components are respectively arranged at two ends of the housing, the first wiring component is an outgoing wiring component, and the second wiring component is an incoming wiring component. The second wiring component is a plug-in wiring component, such as a busbar clamp.

[0111] Further, such as Figure 2-3 As shown in Figures 5, 7-9, the first circuit further includes a first connecting plate 14b, a first negative electrode wiring member, the first connecting plate 14b, a contact system 11b, and a second negative electrode wiring member connected in series. Specifically, the first negative electrode wiring member, the first connecting plate 14b, the movable contact 11-1b, the static contact 11-2b, and the second negative electrode wiring member are connected in series in series. Furthermore, the first connecting plate 14b is a metal conductive plate.

[0112] Further, such as Figure 2 、 7As shown in Figures 9 and 34, the first circuit further includes a manganese-copper shunt 13b, which is preferably connected in series between the contact system 11b and the second negative electrode wiring component; specifically, the manganese-copper shunt 13b is connected in series between the static contact 11-2b and the second negative electrode wiring component. Furthermore, the first circuit further includes a second connecting plate 18b, through which the manganese-copper shunt 13b is electrically connected to the static contact plate 11-22b of the static contact 11-2b. Furthermore, the manganese-copper shunt 13b and the second connecting plate 18b are preferably integrally formed, connected by a bend. The second connecting plate 18b is stacked and fixed to the third static contact plate segment 11-223b of the static contact plate 11-22b along direction d2, and is electrically connected. Furthermore, the manganese copper shunt 13b includes a first copper plate 13-1b, a manganese copper plate 13-2b, and a second copper plate 13-3b, which are connected in sequence and form an integrated structure. The manganese copper plate 13-2b is provided with two connecting bosses 13-20b, each of which is electrically connected to the circuit board assembly p via a set of wires. The first copper plate 13-1b is connected to the second connecting plate 18b, and the second copper plate 13-3b is connected to the first busbar clamp 15b. Furthermore, the first copper plate 13-1b and the second connecting plate 18b are connected by a bend. The first copper plate 13-1b, the manganese copper plate 13-2b, and the second copper plate 13-3b are arranged in sequence along direction d1 and are coplanar, with the plane of the manganese copper shunt 13b being perpendicular to direction d3. Furthermore, the second connecting plate 18b is connected at a right angle to the first copper plate 13-1b. The plane of the second connecting plate 18b is perpendicular to direction d2, and the plane of the first copper plate 13-1b is perpendicular to direction d3. Furthermore, the manganese-copper shunt 13b and the second negative electrode terminal component are integrally formed, and the manganese-copper shunt 13b is connected to the second negative electrode terminal component via the second copper plate 13-3b. For example, the second copper plate 13-3b and the second negative electrode terminal component are connected by welding or by a fixed connection member (such as a screw, rivet, etc.).

[0113] Further, such as Figure 2 and 9 As shown, the second circuit further includes a second connecting plate 1c. The first positive electrode wiring component, the second connecting plate 1c, and the second positive electrode wiring component are sequentially connected in series. Furthermore, the second connecting plate 1c is a metal conductive plate, and the second positive electrode wiring component is a second busbar clamp 2c. The second connecting plate 1c and the second busbar clamp 2c are welded or connected via fasteners (e.g., rivets or screws).

[0114] Further, such as Figure 2-3, 5, 8, 26-27, the operating system further includes a thermal trip mechanism 9b and / or a magnetic trip mechanism 10b, the thermal trip mechanism 9b and / or the magnetic trip mechanism 10b are used to drive the locking component 7-6b to rotate and release the buckle with the third connecting rod 7-5b when an overload fault and / or a short circuit fault occurs in the circuit where the switch device is located (which is also the circuit where the contact system 11b, the moving contact 11-1b, and the static contact 11-2b are located), so as to trip the operating mechanism 7b; Figure 26 As shown in (261), when a short circuit occurs in the circuit where the switch device of the present invention is located, the locking member 7-6b is rotated by the magnetic release 10b, so that the locking member 7-6b and the third connecting rod 7-5b are released from the latching fit. At this time, the moving contact 11-1b and the static contact 11-2b have not yet been disconnected; Figure 26 As shown in (262), when an overload fault occurs in the circuit where the switch device of the present invention is located, the locking component 7-6b is driven by the thermal trip mechanism 9b to rotate, so that the locking component 7-6b and the third connecting rod 7-5b are released from the latching engagement. At this time, the moving contact 11-1b and the static contact 11-2b have not yet been disconnected. Further, the locking component 7-6b includes a first engaging arm 7-62b and a second engaging arm 7-63b. The thermal trip mechanism 9b is coupled with the first engaging arm 7-62b to drive the locking component 7-6b to rotate and release the latching engagement with the third connecting rod 7-5b when an overload fault occurs in the circuit where the switch device is located. The magnetic trip mechanism 10b is coupled with the second engaging arm 7-63b to drive the locking component 7-6b to rotate and release the latching engagement with the third connecting rod 7-5b when a short circuit fault occurs in the circuit where the switch device is located. Furthermore, the locking component 7-6b also includes a locking body 7-61b, and the locking component 7-6b is rotatably arranged on the first rotating shaft 7-4b of the first rotating shaft structure 7r through the locking body 7-61b, and the first cooperating arm 7-62b and the second cooperating arm 7-63b are respectively connected to the locking body 7-61b.

[0115] Further, such as Figure 35As shown, the locking component 7-6b includes a locking member 7-612b and a force-bearing member 7-64b fixed together and rotating coaxially and synchronously; the locking member 7-612b is used to snap-fit ​​with the third connecting rod 7-5b, and the third connecting rod 7-5b and the locking member 7-612b are metal parts with high structural strength and long service life; the force-bearing member 7-64b includes a force-bearing member main body 7-611b, a first cooperating arm 7-62b and a second cooperating arm 7-63b, one end of the first cooperating arm 7-62b and the second cooperating arm 7-63b are respectively connected to the force-bearing member main body 7-611b and the other end are respectively transmission-cooperated with the thermal trip mechanism 9b and the magnetic trip mechanism 10b; the force-bearing member 7-64b is an insulating member with good insulation, which is beneficial to improving the insulation performance of the operating mechanism 7b; the locking member 7-612b cooperates with the force-bearing member main body 7-611b to form the locking body 7-61b. Furthermore, the locking member 7-612b and the force-bearing member body 7-611b are stacked along the rotation axis direction of the locking member 7-6b.

[0116] Furthermore, the thermal trip mechanism 9b and the magnetic trip mechanism 10b are arranged side by side along direction d1 and on the same side of the operating mechanism 7b, creating a more rational and compact layout and helping to reduce the space occupied by the thermal trip mechanism 9b and the magnetic trip mechanism 10b. Specifically, the thermal trip mechanism 9b and the magnetic trip mechanism 10b are arranged on the same side of the operating mechanism 7b along direction d2.

[0117] Specifically, such as Figures 26-27As shown in Figures 30 and 31, the thermal trip mechanism 9b includes a bimetallic strip 9-1b, which is connected in series between the first connecting plate 14b and the contact system 11b. Furthermore, the thermal trip mechanism 9b includes a bimetallic component 9-123b and a traction rod 9-5b. The traction rod 9-5b is rotatably arranged and the rotation axis direction is parallel to the direction d3. The traction rod 9-5b includes a first traction rod arm 9-52b and a second traction rod arm 9-53b. One end of the bimetallic component 9-123b is fixed and the other end is in transmission cooperation with the first traction rod arm 9-52b to drive the traction rod 9-5b to rotate. The second traction rod arm 9-53b is in transmission cooperation with the first cooperation arm 7-62b of the locking component 7-6b to drive the locking component 7-6b to rotate, so that the locking component 7-6b and the third connecting rod 7-5b are released from the coupling. Furthermore, the traction rod 9-5b also includes a traction rod mounting portion 9-51b, and the traction rod 9-5b is rotatably set through the traction rod mounting portion 9-51b. The rotation axis direction of the traction rod 9-5b is parallel to the direction d3, and one end of the traction rod first arm 9-52b and the traction rod second arm 9-53b are connected to the traction rod mounting portion 9-51b and are distributed along the circumference of the traction rod mounting portion 9-51b. Furthermore, the bimetallic component 9-123b includes a bimetallic strip 9-1b, a connecting piece 9-2b and an adjusting screw 9-3b. The length of the bimetallic strip 9-1b extends along the direction d1, one end is fixed and the other end is inserted in the connecting piece 9-2b, the connecting piece 9-2b is a plastic part, the adjusting screw 9-3b is a self-tapping screw and is arranged on the connecting piece 9-2b, the adjusting screw 9-3b is in transmission cooperation with the first arm 9-52b of the traction rod, and the adjusting screw 9-3b is convenient for adjusting the driving gap between the bimetallic component 9-123b and the first arm 9-52b of the traction rod 9-5b according to actual needs. In the prior art, the adjusting screw 9-3b is directly set on the bimetallic strip 9-1b. After the position of the adjusting screw 9-3b is adjusted through testing, the threaded sealant is applied to fix the adjusting screw 9-3b and the bimetallic strip 9-1b together. The adjusting screw 9-3b cannot be adjusted again, and then the shell assembly is completed. In this embodiment, the adjusting screw 9-3b is set on the connecting piece 9-2b. After the switch device of this embodiment is assembled, the adjusting screw 9-3b can be adjusted. The adjusting screw 9-3b cooperates with the connecting piece 9-2b to ensure that the adjusting screw 9-3b is stably and reliably maintained in the working position, so that the thermal trip mechanism 9b can reliably, timely and accurately drive the operating mechanism 7b to trip.Furthermore, the bimetallic strip 9-1b is provided with a bimetallic avoidance hole 9-11b for avoiding the adjusting screw 9-3b; the connecting piece 9-2b includes a connecting piece socket 9-21b arranged therein and a connecting piece hole 9-22b arranged on a pair of side walls of the connecting piece socket 9-21b; the aperture of the bimetallic avoidance hole 9-11b is larger than the aperture of the connecting piece hole 9-22b and the outer diameter of the adjusting screw 9-3b, and the aperture of the connecting piece hole 9-22b is smaller than the outer diameter of the adjusting screw 9-3b, thereby avoiding interference between the adjusting screw 9-3b and the bimetallic strip 9-1b when the adjusting screw 9-3b is screwed, ensuring that the adjusting screw 9-3b is reliably maintained in the working position after adjustment; one end of the bimetallic strip 9-1b is inserted into the connecting piece socket 9-21b, so that the bimetallic avoidance hole 9-11b corresponds to the connecting piece hole 9-22b.

[0118] Specifically, such as Figures 26-27 As shown in Figure 30, the thermal trip mechanism 9b also includes a thermal element 9-4b, one end of the bimetallic strip 9-1b is fixedly mounted on the thermal element 9-4b, and the thermal element 9-4b cooperates with the housing limiter to achieve fixed installation of the bimetallic component 9-123b, and is also used to be electrically connected to the first connecting plate 14b. Furthermore, the first circuit also includes a first connecting plate 17b, and the first connecting plate 14b is electrically connected to the thermal element 9-4b through the first connecting plate 17b. Furthermore, the first connecting plate 14b and the first connecting plate 17b are preferably an integrated structure, and the two are bent and connected; the first connecting plate 17b and the thermal element 9-4b are stacked and fixed together along the direction d2 and are electrically connected. Furthermore, the thermal element 9-4b is a plate-like structure, and the planes thereof and the first connecting plate 17b are perpendicular to the direction d2.

[0119] Further, such as Figure 1 As shown, the housing of the switch device of the present invention is further provided with an adjustment hole for operating the adjustment screw 9-3b; specifically, the adjustment hole includes an outer adjustment hole 1-6a provided on the outer shell 1a and an inner adjustment hole provided on the inner shell 2a, and one end of the adjustment screw 9-3b for external force operation passes through the inner adjustment hole and protrudes outside the inner shell 2a and is opposite to the outer adjustment hole 1-6a; Figure 2 As shown, the switch device of the present invention further includes a hole cover 3a for blocking the outer adjustment hole 1-6a. After the operator completes the adjustment of the position of the adjustment screw 9-3b, the hole cover 3a is covered on the outer adjustment hole 1-6a.

[0120] As another embodiment of the cooperation between the adjustment hole and the adjustment screw 9-3b, one end of the adjustment screw 9-3b for external force operation is located inside the inner shell 2a, and the external force operates the adjustment screw 9-3b through the outer adjustment hole 1-6a and the inner adjustment hole in turn.

[0121] Specifically, such as Figures 26-27As shown in Figure 31, the magnetic tripping mechanism 10b is an electromagnetic tripping mechanism, which includes an armature 10-1b, a yoke 10-2b, an armature return spring 10-3b, and a conductive plate used in conjunction with each other; the armature return spring 10-3b acts on the armature 10-1b to make it have a movement tendency away from the yoke 10-2b; the conductive plate is used to be connected in series in the circuit to be disconnected (in this embodiment, the first circuit is the circuit to be disconnected, and the conductive plate is realized by the static contact plate 11-22b of the static contact 11-2b) and at least part of it is inserted in the yoke 10-2b. When a short-circuit current flows through the circuit to be disconnected, an electromagnetic field is generated and the armature 10-1b is attracted by the yoke 10-2b. The armature 10-1b drives the locking component 7-6b to rotate so that it releases the lock fit with the third connecting rod 7-5b.

[0122] Furthermore, the armature 10-1b and the yoke 10-2b are arranged relative to each other along the direction d1, and the armature 10-1b moves back and forth along the direction d1 to engage and disengage with the yoke 10-2b. Furthermore, the second section 11-222b of the stationary touch plate 11-22b passes through the middle of the yoke 10-2b, and the first section 11-221b and the third section 11-223b of the stationary touch plate are respectively located on both sides of the yoke 10-2b along the direction d2.

[0123] Furthermore, the magnetic tripping mechanism 10b also includes an armature guide rod 10-4b, which cooperates with the armature piece 10-1b to guide the armature piece 10-1b.

[0124] Specifically, one end of the armature guide rod 10-4b is fixedly connected to the armature part 10-1b, and the other end is slidably arranged in the armature guide hole on the bottom wall of the yoke part 10-2b. The armature guide hole is composed of guide holes arranged on the conductive plate, the yoke bottom plate and the magnetizing plate 10-22b, which are spliced ​​along the direction d1; the armature return spring 10-3b is a compression spring, which is sleeved on the armature guide rod 10-4b and its two ends are respectively matched with the armature part 10-1b and the conductive plate.

[0125] As other embodiments of the armature guide rod 10-4b, a group of armature guide rods 10-4b are respectively provided on the two yoke arms of the yoke part 10-2b, and the armature guide rods 10-4b extend along the direction d1 and one end is connected to the yoke arm; the armature part 10-1b includes an armature slide hole or an armature slide groove cooperating with the two groups of armature guide rods 10-4b.

[0126] Furthermore, the armature piece 10-1b includes a main armature 10-11b and a secondary armature 10-12b, the main armature 10-11b includes a main armature plate 10-111b and an armature transmission arm 10-112b, one end of the armature transmission arm 10-112b is bent and connected to the main armature plate 10-111b and the other end is used to output a driving force, the driving force is used to drive the locking component 7-6b to rotate so that it releases the latching fit with the third connecting rod 7-5b, and the main armature plate 10-111b and the secondary armature 10-12b are stacked along the direction d1. The structural design of the armature 10-1b can reduce the thickness requirement for the main armature 10-11b, reduce the difficulty of forming the armature transmission arm 10-112b, and facilitate processing. The auxiliary armature 10-12b and the main armature 10-11b cooperate to ensure the reliable cooperation between the armature 10-1b and the yoke 10-2b. The number of auxiliary armatures 10-12b can be adjusted according to actual needs. The number of auxiliary armatures 10-12b is ≥1. The auxiliary armature 10-12b and the main armature 10-11b are preferably split structures. In this embodiment, the auxiliary armature 10-12b is preferably arranged closer to the yoke 10-2b relative to the main armature plate 10-111b of the main armature 10-11b. The armature transmission arm 10-112b includes a transmission arm connecting plate 10-1121b and a transmission arm driving plate 10-1122b. The transmission arm connecting plate 10-1121b extends along direction d1, one end is bent and connected to the main armature plate 10-111b and the other end is bent and connected to the transmission arm driving plate 10-1122b. The transmission arm driving plate 10-1122b is arranged parallel to the main armature plate 10-111b.

[0127] As another embodiment of the armature piece 10-1b, the main armature plate 10-111b and the auxiliary armature 10-12b are an integral structure, and one end of the two is bent and connected; when the armature piece 10-1b includes multiple auxiliary armatures 10-12b, adjacent auxiliary armatures 10-12b are bent and connected to each other.

[0128] Further, such as Figure 3 、 5 As shown, the yoke 10 - 2 b is arranged close to the contact system 11 b .

[0129] Furthermore, the yoke component 10-2b includes a yoke bottom wall and yoke arms, the two yoke arms are arranged opposite to each other and are respectively connected to the two ends of the yoke bottom wall by bending, and the conductive plate is inserted between the two yoke arms and overlapped with the yoke bottom wall along the direction d1. Furthermore, the yoke component 10-2b includes a yoke 10-21b and at least one magnetizing plate 10-22b, the yoke 10-21b includes a yoke bottom plate and yoke arms, the two yoke arms are arranged opposite to each other and are respectively connected to the two ends of the yoke by bending, the yoke bottom plate and the magnetizing plate 10-22b are overlapped along the direction d1, the yoke bottom plate and the magnetizing plate 10-22b together constitute the yoke bottom wall of the yoke component 10-2b, and the yoke bottom plate and the magnetizing plate 10-22b are preferably split structures. The magnetizing plate 10-22b can increase the magnetic attraction force, improve the reliability of the fit between the armature 10-1b and the yoke 10-2b, and increase the magnetic field of the yoke 10-2b, thereby accelerating the arc generated by the moving contact 11-1b and the static contact 11-2b to enter the arc extinguishing chamber 12-1b. Furthermore, the conductive plate and the magnetizing plate 10-22b are located on both sides of the yoke bottom plate in the direction d1, and the conductive plate, the yoke bottom plate, and the magnetizing plate 10-22b are fixedly connected together.

[0130] As other embodiments of the magnetic yoke 10-2b, the magnetic yoke 10-2b is not provided with a magnetizing plate 10-22b; or, the magnetic yoke 10-2b and the magnetizing plate 10-22b are an integrated structure, and the two are connected by bending.

[0131] Specifically, such as Figure 2 、 26 -27, the first cooperating arm 7-62b and the second cooperating arm 7-63b are radially arranged, that is, the extension lines of the first cooperating arm 7-62b and the second cooperating arm 7-63b pass through the rotation center of the lock component 7-6b, one end of the first cooperating arm 7-62b is connected to the lock body 7-61b and the other end is used for transmission and cooperation with the thermal tripping mechanism 9b, and one end of the second cooperating arm 7-63b is connected to the lock body 7-61b and the other end is used for transmission and cooperation with the magnetic tripping mechanism 10b; the first cooperating arm 7-62b and the second cooperating arm 7-63b are arranged in the direction d3 (that is, the rotation center of the lock component 7-6b). axial direction); the first cooperating arm 7-62b and the transmission arm connecting plate 10-1121b are respectively located on both sides of the second cooperating arm 7-63 in the direction d3, and the transmission arm driving plate 10-1122b is located between the first cooperating arm 7-62b and the second cooperating arm 7-63b in the rotation direction of the locking part 7-6b, and the free end of the transmission arm driving plate 10-1122b is spaced apart from the first cooperating arm 7-62b in the direction d3, so as to avoid interference between the first cooperating arm 7-62b and the transmission arm driving plate 10-1122b when the locking part 7-6b rotates, thereby affecting the disengagement of the operating mechanism 7b.

[0132] Specifically, such as Figure 31 As shown, the armature part 10-1b also includes an armature avoidance notch, which is used to avoid the second mating arm 7-63b when the locking part 7-6b is driven by the thermal tripping mechanism 9b to rotate.

[0133] Further, such as Figure 1-2 , 7-8, 21-25, the switch device of the present invention also includes a wiring device 6b, the wiring device 6b includes a wiring seat 6-1b and a wiring terminal 6-2b arranged in the wiring seat 6-1b; the wiring seat 6-1b includes a wiring side wall 6-111b, the wiring side wall 6-111b is provided with two groups of wiring holes 6-13b, the wiring holes 6-13b are matched with the wiring terminals 6-2b one to one, the two groups of wiring holes 6-13b are respectively a group one wiring hole and a group two wiring hole, the group one wiring hole includes at least two first wiring holes The wire holes 6-131b, the wiring terminals 6-2b matched with each first wiring hole 6-131b are Class I terminals 6-21b, and each Class I terminal 6-21b is used to be connected in series at one end of the first circuit. The second wiring hole group includes at least two second wiring holes 6-132b, and the number of the first wiring holes 6-131b and the second wiring holes 6-132b is the same. The wiring terminals 6-2b corresponding to each second wiring hole 6-132b are Class II terminals 6-22b, and each Class II terminal 6-22b is used to be connected in series at one end of the second circuit. Furthermore, the at least two Class I terminals 6-21b are used to be electrically connected to the first connecting plate 14b, that is, m connecting terminals 6-2b are electrically connected to the first connecting plate 14b, and m is a positive integer ≥2; the at least two Class II terminals 6-22b are used to be electrically connected to the second connecting plate 1c, that is, m connecting terminals 6-2b are electrically connected to the second connecting plate 1c, and m is a positive integer ≥2.

[0134] Specifically, the terminal block 6-2b is a first wiring device; in this embodiment, the first wiring hole group includes two first wiring holes 6-131b, and correspondingly, two first-class wiring terminals 6-21b are provided in the wiring seat 6-1b, which respectively correspond to the two first wiring holes 6-131b; the second wiring hole group includes two second wiring holes 6-132b, and correspondingly, two second-class wiring terminals 6-22b are provided in the wiring seat 6-1b, which respectively correspond to the two second wiring holes 6-132b; the first-class terminal 6-21b is electrically connected to the first connecting plate 14b, and the second-class terminal 6-22b is electrically connected to the second connecting plate 1c.

[0135] The wiring device 6b brings the following benefits: the wiring device 6b is provided with a plurality of first-class terminals 6-21b connected in series with one end of the first circuit and a plurality of second-class terminals 6-22b connected in series with one end of the second circuit. The first circuit can be connected to a plurality of external conductors through the plurality of first-class terminals 6-21b, and the second circuit can be connected to a plurality of external conductors through the plurality of second-class terminals 6-22b, which plays a shunting role and can reduce the cross-sectional area of ​​the wire connected to each wiring terminal, thereby facilitating the connection between the wire and the switch device of this embodiment. Specifically, the current specification of the switch device of this embodiment is 250A. In order to meet the current carrying requirements, if the first circuit and the second circuit are respectively connected to the external conductor through a single wire, If the switching device of this embodiment is connected to the entire circuit, the interface area of ​​the single wire will be larger. However, due to the size limitation of the switching device of this embodiment, if only one Class I terminal 6-21b and one Class II terminal 6-22b are provided, the maximum size of the wiring hole 6-13b allowed to cooperate with each wiring terminal is provided on the housing of the switching device, and it cannot accommodate a single wire - that is, a single wire cannot be inserted into the wiring hole 6-13b. However, the switching device of this embodiment is provided with multiple Class I terminals 6-21b and multiple Class II terminals 6-22b, so the cross-sectional area of ​​the single wire connected to each wiring terminal 6-2b can be reduced by at least half, so that the single wire can pass through the corresponding wiring hole 6-13b and be connected to the corresponding wiring terminal 6-2b.

[0136] Furthermore, the wiring device 6b is also provided in the housing 1a and is located at one end of the housing 1a. The wiring seat 6-1b and the housing 1a are of a separate structure. The wiring seat 6-1b combines the wiring terminals 6-2b into a whole, which is conducive to the overall installation and removal, and improves the assembly efficiency of the switch device. Figure 10 As shown, the housing 1a is provided with a mounting opening 1-10a at one end in the direction d1, and the wiring device 6b is arranged in the mounting opening 1-10a.

[0137] As another embodiment of the wiring socket 6 - 1 b and the housing 1 a , the wiring socket 6 - 1 b and the housing 1 a are an integrated structure. In other words, a part of the structure of the housing 1 a serves as the wiring socket 6 - 1 b .

[0138] Furthermore, the terminal block 6-2b includes a terminal frame 6-211b and a wire pressing piece 6-213b, wherein the wire pressing piece 6-213b cooperates with the terminal frame 6-211b to compress an external conductor inserted into the terminal frame 6-211b, and an external force directly or indirectly operates the wire pressing piece 6-213b to release the external conductor. Furthermore, the terminal block 6-2b also includes a terminal screw 6-212b, which is arranged on the terminal frame 6-211b and cooperates with the wire pressing piece 6-213b to drive the wire pressing piece 6-213b to move to compress and release the external conductor.

[0139] Specifically, the wire pressing member 6-213b is a wire pressing block that is rotatably mounted on the wiring frame 6-211b. The wire pressing block is driven by the wiring screw 6-212b to swing within the wiring frame 6-211b to compress and release the external conductor inserted into the wiring frame 6-211b. Furthermore, the wiring frame 6-211b includes a wide portion 6-2111b and a narrow portion 6-2112b that are sequentially arranged and connected to each other along direction d3. The wiring screw 6-212b is threadedly connected to the narrow portion 6-2112b. The wide portion 6-2111b is used to allow the external conductor to be inserted therein. The wire pressing block is driven by the wiring screw 6-212b to swing within the wiring frame 6-211b to compress and release the external conductor inserted into the wide portion 6-2111b. In the direction d2, the size of the wide portion 6-2111b is larger than the size of the narrow portion 6-2112b. The wide and narrow portion design of the wiring frame helps reduce the space occupied by the terminal. Furthermore, the wiring frame 6-211b includes a wire pressing side wall 6-2113b, a wide portion side wall 6-2114b, a narrow portion side wall 6-2115b and a screw mounting wall 6-2116b, and the wire pressing side wall 6-2113b is used to cooperate with the wire pressing block to press and release the external conductor inserted into the wide portion 6-2111b (specifically, the first connecting end plate 14-2b of the first connecting plate 14b or the second connecting end plate 1-2c of the second connecting plate 1c is inserted into the wiring frame 6-211b of the corresponding terminal 6-2b and is overlapped with the wire pressing side wall 6-2113b of the corresponding wiring frame 6-211b, and the external conductor is inserted between the wire pressing block and the first connecting end plate 14-2b or the second connecting end plate 1-2c, and the wire pressing block rotates to press the external conductor against the first connecting end plate 14-2b or the second connecting end plate Plate 1-2c), the two wide side walls 6-2114b are relatively arranged along the direction d2 and are respectively connected to the two ends of the wire pressing side wall 6-2113b by bending, the two narrow side walls 6-2115b are relatively arranged along the direction d2, the two narrow side walls 6-2115b are respectively connected to the two wide side walls 6-2114b and the two narrow side walls 6-2115b are offset between the two wide side walls 6-2114b, the two screw mounting walls 6-2116b are stacked together along the direction d1 and are respectively connected to the two narrow side walls 6-2115b by bending, the wiring screw 6-212b is arranged along the direction d1 and is threadedly connected to the two screw mounting walls 6-2116b, and the wire pressing block includes a wire pressing block shaft, and the two ends of the wire pressing block shaft are respectively rotatably arranged in the wire pressing block shaft grooves of the two narrow side walls 6-2115b.

[0140] As another embodiment of the terminal block 6-2b, the wire pressing member 6-213b is a spring piece with one end being rotatably arranged on the wiring frame 6-211b. When wiring, the wiring screw 6-212b presses the spring piece so that its other end presses the external conductor inserted into the wiring frame 6-211b. When removing the wires, the wiring screw 6-212b avoids the spring piece, and the spring piece automatically resets and releases the external conductor.

[0141] As another embodiment of the terminal block 6-2b, the wire pressing member 6-213b is provided on a wiring spring, one end of which is fixed and the other end is used to press the external conductor inserted into the wiring frame 6-211b; an external force (such as a screwdriver) presses the wiring spring through the operating hole 6-14b to release the external conductor.

[0142] Furthermore, the wiring side wall 6-111b of the wiring seat 6-1b is also provided with two groups of operating holes 6-14b, the operating holes 6-14b are matched one-to-one with the wiring screws 6-212b, the aperture of the operating hole 6-14b is smaller than the aperture of the wiring hole 6-13b, and the two groups of operating holes 6-14b are respectively group one operating holes and group two operating holes. The group one operating holes includes at least two first operating holes 6-141b that are matched one-to-one with the first wiring holes 6-131b, and the group two operating holes includes at least two second operating holes 6-142b that are matched one-to-one with the second wiring holes 6-132.

[0143] Specifically, the wiring side wall 6-111b is provided with two groups of first operating holes 6-141b, which respectively cooperate with the two groups of first wiring holes 6-131b; the wiring side wall 6-111b is provided with two groups of second operating holes 6-142b, which respectively cooperate with the two groups of second wiring holes 6-132b. It should be noted that the operating holes 6-14b and the corresponding wiring holes 6-13b can be two holes provided independently of each other, or two holes connected to each other.

[0144] like Figure 21The figure shows a first arrangement of the first wiring holes 6-131b and the second wiring holes 6-132: the wiring holes in group 1 are offset to one side relative to the wiring holes in group 2 in direction d3, the first wiring holes 6-131b of group 1 are arranged side by side along direction d2, and the second wiring holes 6-132b of group 2 are arranged side by side along direction d2; the wiring holes 6-13b and the corresponding operation holes 6-14b are arranged side by side along direction d3; the wiring holes 6-13b and the corresponding wiring terminals 6-2b are arranged opposite each other along direction d1, and the operation holes 6-14b and the corresponding wiring terminals 6-2b are arranged opposite each other along direction d1. Furthermore, the first wiring holes 6-131b and the second wiring holes 6-132b are arranged alternately in sequence along direction d2, with a second operation hole 6-142b provided between two adjacent first wiring holes 6-131b, and a first operation hole 6-141b provided between two adjacent second wiring holes 6-132b.

[0145] Specifically, such as Figure 7 In the direction shown, on the wiring side wall 6-111b of the wiring seat 6-1b, from right to left, the first wiring hole 6-131b, the second wiring hole 6-132b, the first wiring hole 6-131b, and the second wiring hole 6-132b are arranged in sequence.

[0146] Furthermore, when the first wiring hole 6-131b and the second wiring hole 6-132b of the wiring device 6b adopt the above-mentioned arrangement method, the first-class terminals 6-21b and the second-class terminals 6-22b of the wiring device 6b are alternately arranged in sequence along the direction d2, and among the adjacent first-class terminals 6-21b and second-class terminals 6-22b, the wide part 6-2111b of the first-class terminal 6-21b and the narrow part 6-2112b of the second-class terminal 6-22b are arranged side by side along the direction d2, and the narrow part 6-2112b of the first-class terminal 6-21b and the wide part 6-2111b of the second-class terminal 6-22b are arranged side by side along the direction d2.

[0147] like Figure 24 As shown, this is a second arrangement of the first wiring holes 6-131b and the second wiring holes 6-132b. The difference between this arrangement and the above arrangement is that: the group one wiring holes and the group two wiring holes are arranged in sequence in the direction d2, the group one wiring holes are located to one side of the group two wiring holes in the direction d2, the group two wiring holes and the group two operating holes are arranged side by side along the direction d2, and the group two wiring holes and the group one operating holes are arranged side by side along the direction d2.

[0148] Furthermore, when the first wiring hole 6-131b and the second wiring hole 6-132b of the wiring device 6b adopt the above-mentioned arrangement method, the first-class terminal 6-21b of the wiring device 6b is located on one side of the second-class terminal 6-22b in the direction d2, the wide part 6-2111b of each first-class terminal 6-21b is side by side along the direction d2 and the narrow part 6-2112b is side by side along the direction d2, the wide part 6-2111b of each second-class terminal 6-22b is side by side along the direction d2 and the narrow part 6-2112b is side by side along the direction d2, the wide part 6-2111b of each first-class terminal 6-21b and the narrow part 6-2112b of each second-class terminal 6-22b are side by side along the direction d2, and the narrow part 6-2112b of each first-class terminal 6-21b and the wide part 6-2111b of each second-class terminal 6-22b are side by side along the direction d2.

[0149] The first wiring hole 6-131b and the second wiring hole 6-132b of the wiring device 6b adopt the above-mentioned two arrangement methods, which is conducive to reducing the space required for each wiring hole 6-13b, and at the same time reducing the space required for each wiring terminal 6-2b, which is conducive to reducing the overall specifications and dimensions of the wiring device 6b.

[0150] It should be noted that the arrangement of the first wiring hole 6-131b and the second wiring hole 6-132b is not limited to the above two. The two can also adopt the following arrangement: Method 1 - Refer to Figure 21 As shown, this arrangement is similar to Figure 21 The arrangement shown has at least the following differences: from right to left, the second wiring hole 6-132b, the first wiring hole 6-131b, the second wiring hole 6-132b and the first wiring hole 6-131b. Figure 24 As shown, this arrangement is similar to Figure 24 The arrangement shown has at least the following differences: from right to left, the second wiring hole 6-132b, the second wiring hole 6-132b, the first wiring hole 6-131b, and the first wiring hole 6-131b. Method 3: In the direction d2, the two second wiring holes 6-132b are located at both ends, and the two first wiring holes 6-131b are located between the two second wiring holes 6-132b; in the direction d3, the two second wiring holes 6-132b are offset to one side relative to the two first wiring holes 6-131b. Method 4: The difference from Method 3 is that in the direction d2, the two first wiring holes 6-131b are located at both ends, and the two second wiring holes 6-132b are located between the two first wiring holes 6-131b. The first wiring holes 6-131b and the second wiring holes 6-132b can also be arranged in many other ways, which are not listed here one by one.

[0151] Furthermore, the terminal block 6-1b also includes a terminal cavity 6-12b arranged therein and used to accommodate the terminal 6-2b. The terminal cavity 6-12b is matched with the terminal 6-2b one-to-one, that is, a terminal 6-2b is arranged in each terminal cavity 6-12b, and the terminal cavity 6-12b includes a terminal cavity opening for allowing the terminal 6-2b to be transferred into the terminal cavity 6-12b. The terminal cavity opening is arranged at one end of the corresponding terminal cavity 6-12b in the direction d3. The terminal cavity 6-12b that cooperates with the first type terminal 6-21b is the first cavity, and the terminal cavity 6-12b that cooperates with the second type terminal 6-22b is the second cavity. The terminal cavity opening of the first cavity and the terminal cavity opening of the second cavity are respectively arranged on the two side walls of the terminal block 6-1b that are opposite to each other along the direction d3.

[0152] The layout of the terminal cavity opening of the first cavity and the terminal cavity opening of the second cavity is conducive to improving the insulation gap and creepage distance between the first cavity and the second cavity.

[0153] As another embodiment of the terminal cavity opening, the terminal cavity opening is provided on the bottom wall of the corresponding terminal cavity 6-12b, and the bottom wall of the terminal cavity 6-12b refers to the side wall of the terminal cavity 6-12b opposite to the wiring side wall 6-111b along the direction d1.

[0154] Furthermore, the terminal cavity 6-12b also includes a terminal cavity insertion hole 6-120b provided on its bottom wall for the corresponding connecting plate (the first connecting plate 14b or the second connecting plate 1c) to be inserted therein and cooperate with the wiring frame 6-211b of the corresponding wiring terminal 6-2b; the first connecting end plate 14-2b of the first connecting plate 14b of the first circuit is inserted therein through the terminal cavity insertion hole 6-120b of the first cavity and cooperates with the wiring frame 6-211b of the first type of terminal 6-21b, and the second connecting end plate 1-2c of the second connecting plate 1c of the second circuit is inserted therein through the terminal cavity insertion hole 6-120b of the second cavity and cooperates with the wiring frame 6-211b of the second type of terminal 6-22b.

[0155] Specifically, the first connecting plate 14b includes a first connecting main board 14-1b and a first connecting end plate 14-2b, the first connecting end plate 14-2b is arranged on one end of the first connecting main board 14-1b and is matched with a type of terminal 6-21b one to one, each first connecting end plate 14-2b is arranged side by side along the direction d2, and each first connecting end plate 14-2b is inserted into the wiring frame 6-211b of the corresponding terminal 6-2b through the corresponding terminal cavity insertion hole 6-120b and is connected to the wire pressing side wall 6-2113b of the corresponding wiring frame 6-211b. Stacked together; the second connecting plate 1c includes a second connecting main plate 1-1c and a second connecting end plate 1-2c, the second connecting end plate 1-2c is arranged on one end of the second connecting main plate 1-1c and is one-to-one matched with the second type terminal 6-22b, and each second connecting end plate 1-2c is arranged side by side along the direction d2, and each second connecting end plate 1-2c is inserted into the wiring frame 6-211b of the corresponding wiring terminal 6-2b through the corresponding terminal cavity insertion hole 6-120b and is stacked with the wire pressing side wall 6-2113b of the corresponding wiring frame 6-211b.

[0156] Further, such as Figure 1-3 , 5, 7-8, the size of the shell 1a in the direction d2 is larger than the size of the shell 1a in the direction d3, that is, the width of the shell 1a is larger than the height of the shell 1a; the second negative wiring component is the first busbar clamp 15b, and the second positive wiring component is the second busbar clamp 2c. The first busbar clamp 15b and the second busbar clamp 2c are arranged relatively spaced along the direction d3. The first busbar clamp 15b and the second busbar clamp 2c both include a pair of clamping plates arranged relatively along the direction d3 and used to clamp the external conductor, and each clamping plate extends to both ends of the shell 1a along the direction d2.

[0157] Specifically, the first busbar clamp 15b and the second busbar clamp 2c both have a generally Ω-shaped structure in the projection perpendicular to the direction d2; the housing 1a is provided with a first socket 1-3a that cooperates with the first busbar clamp 15b and a second socket 1-4a that cooperates with the second busbar clamp 2c, and the first socket 1-3a and the second socket 1-4a are arranged side by side and spaced apart along the direction d3.

[0158] The arrangement of the first busbar clamp 15b and the second busbar clamp 2c facilitates increasing their structural dimensions, enabling them to be plugged into larger busbars, increasing their maximum current carrying capacity and thereby increasing the rated current of the switchgear of the present invention. This arrangement of the first busbar clamp 15b and the second busbar clamp 2c can be applied to switchgear with a rated current of 250A or above.

[0159] Furthermore, the first connecting plate 14b and the second connecting plate 1c are respectively arranged at the two ends inside the shell 1a along the direction d3, so that more internal space of the shell 1a can be utilized to increase the structural dimensions of the first connecting plate 14b and the second connecting plate 1c, thereby increasing the current carrying capacity of the two.

[0160] Further, such as Figure 2-3 As shown in Figures 5 and 8, the operating system further includes a circuit board device p, which is connected to the electric reclosing mechanism 8b for control. Specifically, the circuit board device p is connected to the motor 8-1b of the electric reclosing mechanism 8b for control. After receiving a remote closing signal, the circuit board device p controls the motor 8-1b to operate, thereby driving the electric reclosing mechanism 8b to close the circuit. Furthermore, the circuit board device p includes a connector 2-5p (also known as a gold finger). The circuit board device p outputs and receives signals and / or data through the connector 2-5p. For example, the circuit board device p can output the opening and closing status signal of the switch device through the connector 2-5p, output the operating status data (voltage, current, etc.) of the switch device through the connector 2-5p, and receive reclosing control signals through the connector 2-5p. Furthermore, the housing 1a is provided with a signal socket 1-5a that mates with the connector 2-5p. The signal socket 1-5a is located between the first socket 1-3a and the second socket 1-4a in direction d3.

[0161] Furthermore, the circuit board device p also includes a first microswitch 1-3p. The first microswitch 1-3p is in transmission cooperation with the gear transmission structure 8s or the operating mechanism 7b of the electric reclosing mechanism 8b. After the switch device of the present invention is opened, it is driven by the gear transmission structure 8s or the operating mechanism 7b to change its operating state, which can be used to indicate the current opening and closing state of the switch device of the present invention. Specifically, the first microswitch 1-3p is in transmission cooperation with the second rotating shaft 7-2b of the operating mechanism 7b.

[0162] Specifically, the circuit board device p includes a first circuit board assembly 1p and a second circuit board assembly 2p that are communicatively connected. The first circuit board assembly 1p includes a first circuit board 1-1p and a first microswitch 1-3p disposed on the first circuit board 1-1p. The second circuit board assembly 2p includes a second circuit board 2-1p and a connector 2-5p disposed on the second circuit board 2-1p. The second circuit board assembly 2p outputs and receives data and / or signals through the connector 2-5p. Furthermore, the first circuit board assembly 1p includes a first connector 1-2p disposed on the first circuit board 1-1p. The second circuit board assembly 2p includes a second connector 2-2p disposed on the second circuit board 2-1p. The first connector 1-2p and the second connector 2-2p are plugged together to achieve a communicative connection between the first circuit board assembly 1p and the second circuit board assembly 2p. Furthermore, the first connector 1-2p and the second connector 2-2p are plugged together along direction d2. Furthermore, the circuit board device p also includes a first sampling terminal 2-4p and a second sampling terminal. The first sampling terminal 2-4p is used to plug and electrically connect to the first connecting plate 14b of the first circuit, and the second sampling terminal is used to plug and electrically connect to the second connecting plate 1c of the second circuit to obtain operating power. Furthermore, the first sampling terminal 2-4p and the second sampling terminal are both disposed on the second circuit board 2-1p of the second circuit board assembly 2p.

[0163] Further, such as Figure 2-3 As shown in , 5, 12-15, the switch device of the present invention also includes an indicating mechanism i for indicating the opening and closing status of the switch device.

[0164] The indicator mechanism i is disposed within the handle 1b and slides synchronously therewith. The handle 1b is provided with an indicator hole 1-2b that cooperates with the indicator mechanism i. Furthermore, the circuit board device p includes a signal light for indicating the open and closed states of the switch device. One end of the indicator mechanism i cooperates with the indicator hole 1-2b, and the other end cooperates with the signal light, which is the inner end of the indicator mechanism, transmitting light from the signal light to the indicator hole 1-2b.

[0165] Furthermore, the circuit board device p also includes a second microswitch 2-3p. When the switch device is opened (i.e., when the operating system is opened - when the operating system performs the opening operation), the inner end of the indicator mechanism triggers the second microswitch 2-3p to switch the working state. The second microswitch 2-3p can convert the opening and closing state of the switch device of the present invention into an electrical signal output, thereby realizing remote monitoring of the opening and closing state of the switch device of the present invention. Furthermore, the second microswitch 2-3p is arranged on the second circuit board 2-1p of the second circuit board assembly 2p. The second microswitch 2-3p includes a second operating rod or a second operating protrusion. The inner end of the indicator mechanism presses against the second operating rod or the second operating protrusion to switch the working state of the second microswitch 2-3p. It should be noted that the first microswitch 1-3p and the second microswitch 2-3p can be set at one of the two. In this embodiment, the first microswitch 1-3p and the second microswitch 2-3p are set at the same time, which improves the reliability and accuracy of indicating the current opening and closing state of the switch device of the present invention.

[0166] Specifically, the indicating mechanism i includes an indicating member 2b and a light guide column 3b rotatably arranged in the handle 1b. When the handle 1b drives the operating mechanism 7b to close and open the switch, the indicating member 2b is driven by an external force to rotate and switch between the closing indication position and the opening indication position. The indicating member 2b includes a translucent indicating portion 2-1b. The indicating portion 2-1b preferably includes two indicating sub-portions of different colors connected to each other. The two indicating sub-portions are respectively opposite to the light guide column 3b when the switch device of the utility model is closed and opened. One end of the light guide column 3b and the indicating hole 1-2b are respectively located on both sides of the indicating portion 2-1b. The other end of the light guide column 3b cooperates with the signal light and this end is the inner end of the indicating mechanism. The signal light is preferably an LED indicator light or a diode; the second microswitch 2-3p and the signal light are arranged on the second circuit board 2-1p of the second circuit board assembly 2p.

[0167] As other embodiments of the indicating portion 2-1b, different symbols and / or text labels may be provided on the two indicating sub-portions; or, the indicating portion 2-1b is misaligned with the indicating hole 1-2b when the switching device of the present invention is closed, and the light guide column 3b directly transmits the light of the signal lamp into the indicating hole 1-2b, and the indicating portion 2-1b moves between the indicating hole 1-2b and the light guide column 3b when the switching device of the present invention is opened; or, the two indicating sub-portions have the same color, and different symbols and / or text labels are provided on the two indicating sub-portions.

[0168] As another embodiment of the indicating mechanism i, the indicating mechanism i only includes the indicating member 2b, which is made of a light-conducting material and is also in transmission cooperation with the second micro switch 2-3p.

[0169] Specifically, the indicator 2b includes an indicator portion 2-1b, an indicator connecting portion 2-2b, an indicator mounting portion 2-3b and an indicator actuated portion 2-4b connected in sequence. The indicator portion 2-1b and one end of the indicator connecting portion 2-2b are bent and connected. The indicator 2b is rotatably mounted in the handle 1b through the indicator mounting portion 2-3b. The indicator actuated portion 2-4b is driven by an external force to rotate the indicator 2b during the closing and opening process of the switching device (i.e., the closing and opening process of the operating system - the process of the operating system performing the opening and closing operations). Furthermore, the indicator actuated portion 2-4b is connected to one axial end of the indicator mounting portion 2-3b; the indicator actuated portion 2-4b includes a closing actuated portion 2-41b and an opening actuated portion 2-42b, which form a V-shaped structure as a whole and the bent connection between the two is connected to one axial end of the indicator mounting portion 2-3b; the shell is provided with an indicator driving portion 1-11a, when the switch device is closed (that is, when the operating system is closed - when the operating system performs the closing operation), the indicator driving portion 1-11a presses the closing actuated portion 2-41b to rotate the indicator 2b toward the closing indication position, and when the switch device is opened (that is, when the operating system performs the opening operation - when the operating system performs the opening operation), the indicator driving portion 1-11a presses the opening actuated portion 2-42b to rotate the indicator 2b toward the opening indication position.

[0170] Furthermore, the rotation axis direction of the indicating member 2b of the indicating mechanism i is parallel to the direction d3.

[0171] Furthermore, during the sliding process of the handle 1b, the handle 1b and the light guide column 3b remain relatively stationary. Furthermore, the light guide column 3b is also used to cooperate with the sliding limit of the housing of the switch device to limit the movement trajectory of the light guide column 3b and keep the light guide column 3b and the handle 1b relatively stationary.

[0172] Furthermore, the light guide column 3b cooperates with the handle 1b to keep the indicator 2b in the working position. Furthermore, the light guide column 3b includes a light guide column assembly groove 3-4b, which is clamped on the indicator component mounting portion 2-3b of the indicator component 2b. The light guide column assembly groove 3-4b cooperates with the handle 1b to keep the indicator component 2b in the working position. Furthermore, the light guide column 3b includes an outer light guide column section 3-1b, a middle light guide column section 3-2b and an inner light guide column section 3-3b that are connected in sequence. The three are arranged in sequence along the direction d1, the outer light guide column section 3-1b and the inner light guide column section 3-3b are arranged in parallel, and the inner light guide column section 3-3b is offset relative to the outer light guide column section 3-1b to the side away from the indicator 2b; the light guide column assembly groove 3-4b is preferably arranged on the outer light guide column section 3-1b and the outer light guide column section 3-1b and the indicator connecting portion 2-2b of the indicator 2b are arranged relative to each other along the direction d2.

[0173] Specifically, the end of the handle 1b for external force operation is the handle operating end 1-1b, the handle operating end 1-1b is provided with an indication hole 1-2b, the handle 1b also includes an indicator mounting cavity 1-7b arranged in the middle thereof and communicated with the indication hole 1-2b, the side wall of the indicator mounting cavity 1-7b is provided with an indicator mounting hole 1-4b and an indicator shaft hole 1-3b, the indicator mounting hole 1-4b is communicated with the indicator shaft hole 1-3b, the indicator mounting cavity 1-7b is provided with an indicator mounting cavity entrance, and the indicator mounting cavity entrance is connected to the handle operating end 1- 1b relative; during installation, the indicating part 2-1b, the indicating part connecting part 2-2b, and the indicating part mounting part 2-3b of the indicating part 2b first enter the indicating part mounting cavity 1-7b through the indicating part mounting hole 1-4b, the indicating part mounting part 2-3b enters the indicating part shaft hole 1-3b and is rotated and set therein, the indicating part actuated part 2-4b is located outside the indicating part mounting cavity 1-7b, the light guide column 3b is inserted into the indicating part mounting cavity 1-7b through the indicating part mounting cavity entrance, and the light guide column assembly groove 3-4b is clamped on the indicating part mounting part 2-3b. Further, the handle operating end 1-1b and the handle connecting protrusion 1-5b are respectively arranged at both ends of the handle 1b in the direction d1. Further, the indicating part driving part 1-11a is arranged on the outer shell 1a, and one end of the outer shell 1a is inserted between the closing actuated part 2-41b and the opening actuated part 2-42b.

[0174] As another embodiment of the indicator driving portion 1-11a, the indicator driving portion 1-11a is provided on the wiring seat 6-1b or the inner shell 2a of the wiring device 6b. Figure 2 、 7 -8, 16-17, the switch device of the present invention further includes an anti-forced closing mechanism 4b, which is used to prevent the switch device of the present invention from closing when the switch device of the present invention is not installed in the installation position or is installed in the installation position but not installed in place.

[0175] The anti-strong closing mechanism 4b includes an anti-strong closing member 4-1b and a first reset member 4-2b arranged to move linearly. The anti-strong closing member 4-1b has an anti-strong closing member unlocking position and an anti-strong closing member locking position. The anti-strong closing member 4-1b includes an anti-strong closing member protrusion 4-11b. The housing 1a includes a first locking hole 1-7a. The first reset member 4-2b acts on the anti-strong closing member 4-1b to make the anti-strong closing member protrusion 4-11b have a tendency to move toward the anti-strong closing member locking position. When the anti-strong closing member 4-1b is in the anti-strong closing member locking position, At least part of the anti-strong closing member protrusion 4-11b protrudes outside the housing 1a through the first locking hole 1-7a and the anti-strong closing member 4-1b is limited by the button 1b to prevent the handle 1b from sliding and driving the switch device to close. When the anti-strong closing member protrusion 4-11b (specifically, the part of the anti-strong closing member protrusion 4-11b protruding outside the housing 1a) is squeezed by an external force to move the anti-strong closing member 4-1b to the anti-strong closing member unlocking position, the anti-strong closing member 4-1b and the handle 1b are released from the limited cooperation, allowing the handle 1b to slide and drive the switch device to close. Furthermore, the movement direction of the anti-strong closing member 4-1b is perpendicular to the sliding direction of the handle 1b (direction d1), and the anti-strong closing member 4-1b preferably slides along the direction d3.

[0176] When the switch device of the present invention is not installed in the installation position, the anti-force closing member 4-1b is in the anti-force closing member locking position, preventing the handle 1b from sliding and closing the switch device of the present invention; when the switch device of the present invention is in the process of being installed in the installation position and is not installed in place, the anti-force closing member 4-1b is always kept in the anti-force closing member locking position, preventing the handle 1b from sliding and closing the switch device of the present invention; after the switch device of the present invention is installed in the installation position and is installed in place, the housing w of the installation position squeezes the anti-force closing member protrusion 4-11b, causing the anti-force closing member 4-1b to move to the anti-force closing member unlocking position, then the anti-force closing member 4-1b and the handle 1b are released from the limit, and the handle 1b is allowed to slide and drive the switch device to close. In general, the anti-force closing mechanism 4b prevents the switch device of the present invention from closing when it is not installed in the installation position and when it is in the process of being installed in the installation position and is not installed in place, thereby ensuring the personal safety of the operator. The "installation position" refers to the position in the cabinet used to install the switch device. The cabinet can be, for example, a switch cabinet, a control cabinet, a distribution cabinet, etc., and the "shell w of the installation position" refers to the cabinet itself used to install the switch device.

[0177] Specifically, the housing 1a further includes a locking side wall 1-21a, and the first locking hole 1-7a is provided on the locking side wall 1-21a. Furthermore, the locking side wall 1-21a is perpendicular to the direction d3, that is, the plane where the locking side wall 1-21a is located is perpendicular to the direction d3, and the corresponding locking side wall 1-21a is parallel to the direction d1 and the direction d2.

[0178] Specifically, the anti-strong closing component 4-1b also includes an anti-strong closing component locking portion 4-13b connected to the anti-strong closing component protrusion 4-11b, and the handle 1b includes a handle avoidance hole 1-10b arranged at one end thereof, and a side wall of the handle avoidance hole 1-10b is a handle locking wall 1-9b; when the anti-strong closing component 4-1b is in the anti-strong closing component unlocking position, the anti-strong closing component locking portion 4-13b is opposite to the handle avoidance hole 1-10b, and when the handle 1b is driven by external force to slide to drive the switch device of the utility model to close, the anti-strong closing component locking portion 4-13b enters the handle avoidance hole 1-10b; when the anti-strong closing component 4-1b is in the anti-strong closing component locking position, the anti-strong closing component locking portion 4-13b and the handle locking wall 1-9b are relatively limited and cooperated to prevent the handle 1b from sliding and driving the switch device of the utility model to close. Furthermore, the anti-strong closing member locking portion 4-13b is connected to one end of the anti-strong closing member protrusion 4-11b and is perpendicular to the moving direction of the anti-strong closing member 4-1b, and the other end of the anti-strong closing member protrusion 4-11b is used to protrude from the shell 1a through the first locking hole 1-7a of the shell 1a, and the anti-strong closing member 4-1b preferably also includes an anti-strong closing member limiting portion 4-12b, and the anti-strong closing member limiting portion 4-12b and the anti-strong closing member locking portion 4-13b are connected to the same end of the anti-strong closing member protrusion 4-11b and are located on both sides of the anti-strong closing member protrusion 4-11b (anti-strong closing member locking portion 4-13b). The fixed part 4-13b and the anti-force closing member limiting part 4-12b are preferably located on both sides of the anti-force closing member protrusion 4-11b in the direction d1. When the anti-force closing member 4-1b is in the anti-force closing member locking position, the anti-force closing member locking part 4-13b and the anti-force closing member limiting part 4-12b are both limitedly matched with the side wall of the housing 1a (i.e., the locking side wall 1-21a). The anti-force closing member locking part 4-13b and the anti-force closing member limiting part 4-12b are located between the handle 1b and the locking side wall 1-21a to prevent the anti-force closing member 4-1b from falling out through the first locking hole 1-7a. Furthermore, the first reset member 4-2b is a compression spring, the anti-force closing member protrusion 4-11b is provided with an anti-force closing member spring hole, the housing 1a is provided with a first mating portion 1-22a, one end of the first reset member 4-2b is placed in the anti-force closing member spring hole and the other end is mated with the first mating portion 1-22a. Furthermore, the first mating portion 1-22a is spaced apart from the locking side wall 1-21a, and the first mating portion 1-22a and the locking side wall 1-21a are respectively located on both sides of the handle 1b in direction d3. Furthermore, the handle avoidance hole 1-10b and the indicator mounting cavity 1-7b are respectively provided at both ends of the handle 1b along direction d2 and on both sides of the handle connecting protrusion 1-5b. Furthermore, the anti-strong closing member protrusion 4-11b protruding from the outer shell 1a is provided with an anti-strong closing member chamfer structure 4-111b at one end, which facilitates the shell w in the installation position to squeeze the anti-strong closing member protrusion 4-11b to move the anti-strong closing member 4-1b to the anti-strong closing member unlocking position.

[0179] Further, such as Figure 1-2 As shown in Figures 7-8, 12, and 18-20, the switch device of the present invention also includes an anti-forced pulling mechanism 5b. After the switch device of the present invention is installed in the installation position, the anti-forced pulling mechanism 5b is used to prevent the switch device of the present invention from being pulled out of the installation position in the closed state.

[0180] The anti-force pulling mechanism 5b includes an anti-force pulling member 5-1b, and the anti-force pulling member 5-1b includes an anti-force pulling member protrusion 5-11b. The housing 1a includes a second locking hole 1-8a arranged on its locking side wall 1-21a for cooperating with the anti-force pulling member protrusion 5-11b; when the handle 1b slides to the handle closing position, that is, when the switch device of the present invention is closed, the anti-force pulling member 5-1b is driven to move so that at least part of the anti-force pulling member protrusion 5-11b protrudes outside the housing 1a through the second locking hole 1-8a, and when the handle 1b slides to the handle opening position, the anti-force pulling member 5-1b is reset so that the anti-force pulling member protrusion 5-11b moves into the housing 1a.

[0181] The switch device of the present invention is installed in the installation position and in place, and the handle 1b slides to the handle closing position to close the switch device of the present invention, and the anti-force pulling member 5-1b moves under the drive of the handle 1b so that at least part of the anti-force pulling member protrusion 5-11b protrudes outside the shell 1a and enters the locking hole of the shell w of the installation position, and the anti-force pulling member protrusion 5-11b cooperates with the shell w of the installation position to prevent the switch device of the present invention from being pulled out of the installation position in the closed state; after the handle 1b slides to the handle opening position to open the switch device of the present invention, the anti-force pulling member 5-1b resets so that the anti-force pulling member protrusion 5-11b moves into the shell 1a, so that the anti-force pulling member protrusion 5-11b releases the limit cooperation with the shell w of the installation position, and the switch device of the present invention can be pulled out of the installation position; the anti-force pulling mechanism 5b ensures the safety and reliability of electricity use and ensures the personal safety of the operator.

[0182] Furthermore, the anti-strong pulling member 5-1b is rotatably arranged between the handle 1b and the locking side wall 1-21a, which is easy to install and reliable in operation. It should be noted that the anti-strong pulling member 5-1b is not limited to being rotatable, for example, the anti-strong pulling member 5-1b can also be moved as a whole.

[0183] Furthermore, the second locking hole 1 - 8a and the first locking hole 1 - 7a are arranged side by side and spaced apart on the locking side wall 1 - 21a along the direction d2.

[0184] like Figure 18-19 As shown, this is an implementation of the anti-strong pulling mechanism 5b:

[0185] The anti-force pull mechanism 5b also includes a second reset member 5-2b. When the handle 1b slides to the handle-off position, the second reset member 5-2b drives the anti-force pull member 5-1b to move (in this embodiment, the second reset member 5-2b drives the anti-force pull member 5-1b to rotate), causing the anti-force pull member protrusion 5-11b to move into the housing 1a. Furthermore, the second reset member 5-2b is disposed between the anti-force pull member 5-1b and the locking side wall 1-21a.

[0186] Furthermore, the second reset member 5-2b is a V-shaped spring piece, which includes a second reset member inner plate 5-21b and a second reset member outer plate 5-22b. The second reset member inner plate 5-21b cooperates with the anti-strong pull-out member 5-1b, and the second reset member outer plate 5-22b cooperates with the locking side wall 1-21a. The second reset member 5-2b has a simple structure and occupies a small space. Furthermore, the anti-force pulling member 5-1b also includes an anti-force pulling member mounting portion 5-13b and an anti-force pulling member connecting portion 5-12b, one end of the anti-force pulling member connecting portion 5-12b is connected to the anti-force pulling member mounting portion 5-13b and the other end is provided with an anti-force pulling member protrusion 5-11b, the anti-force pulling member 5-1b is rotatably set through the anti-force pulling member mounting portion 5-13b, and the side of the anti-force pulling member connecting portion 5-12b facing the locking side wall 1-21a is provided with an anti-force pulling member limiting groove 5-15b, and the second reset member inner plate 5-21b is arranged in the anti-force pulling member limiting groove 5-15b.

[0187] Furthermore, the handle 1b includes a first locking protrusion 1-6b, and the anti-force pull member 5-1b includes an anti-force pull member locking surface 5-17b. When the handle 1b slides to the handle closing position, the first locking protrusion 1-6b presses against the anti-force pull member locking surface 5-17b, driving the anti-force pull member 5-1b to rotate, causing the anti-force pull member protrusion 5-11b to protrude outside the housing 1a through the second locking hole 1-8a. Furthermore, the anti-force pull member locking surface 5-17b is provided on the anti-force pull member connecting portion 5-12b, and the anti-force pull member locking surface 5-17b and the anti-force pull member protrusion 5-11b are respectively located on both sides of the anti-force pull member connecting portion 5-12b.

[0188] Furthermore, the anti-force-pulling member 5-1b also includes an auxiliary unlocking portion 5-16b. When the handle 1b slides to the opening position and continues to slide, the first locking protrusion 1-6b drives the auxiliary unlocking portion 5-16b to rotate around the rotation center of the anti-force-pulling member 5-1b, thereby rotating the anti-force-pulling member 5-1b, thereby causing the anti-force-pulling member protrusion 5-11b to move toward the inside of the shell 1a. Therefore, after the switch device of the present invention is opened, the anti-force-pulling member protrusion 5-11b and the shell w of the installation position may have friction, so that the anti-force-pulling member protrusion 5-11b cannot move toward the shell 1a. The first locking protrusion 1-6b cooperates with the auxiliary unlocking portion 5-16b to reset the anti-force-pulling member 5-1b, so that the switch device of the present invention can be successfully pulled out from the installation position.

[0189] Specifically, when the handle 1b slides to the opening position and continues to slide, the first locking protrusion 1-6b presses against the auxiliary unlocking portion 5-16b, so that the anti-force pulling member 5-1b has a rotational tendency to drive the anti-force pulling member protrusion 5-11b to move toward the inside of the outer shell 1a, that is, the first locking member 1-6b presses against the auxiliary unlocking portion 5-16b and drives the anti-force pulling member 5-1b to rotate, and the anti-force pulling member protrusion 5-11b moves toward the inside of the outer shell 1a under the drive of the anti-force pulling member 5-1b.

[0190] Furthermore, the auxiliary unlocking portion 5-16b is an auxiliary unlocking protrusion provided on the anti-force pulling member mounting portion 5-13b, and the first locking protrusion 1-6b presses the auxiliary unlocking protrusion to rotate the anti-force pulling member 5-1b so that the anti-force pulling member protrusion 5-11b moves toward the inside of the housing 1a.

[0191] Further, such as Figure 10 and 18 As shown, the anti-force pulling member 5-1b also includes an anti-force pulling member shaft 5-14b, one end of which is connected to the anti-force pulling member mounting portion 5-13b; the housing 1a also includes an anti-force pulling member mounting platform 1-12a disposed on the inner side of the locking side wall 1-21a, and the anti-force pulling member mounting platform 1-12a is provided with an anti-force pulling member shaft hole 1-120a; the anti-force pulling member shaft 5-14b is rotatably inserted into the anti-force pulling member shaft hole 1-120a, and the anti-force pulling member 5-1b and the anti-force pulling member mounting platform 1-12a are arranged side by side along the axial direction of the anti-force pulling member shaft 5-14b. Furthermore, the rotation axis direction of the anti-force pulling member 5-1b is parallel to the direction d2.

[0192] like Figure 20 As shown, another implementation of the anti-strong pulling mechanism 5b is shown. The difference between this implementation and the previous implementation is that:

[0193] When the handle 1b slides to the handle-off position, the anti-force-pull member 5-1b is driven to rotate, causing the anti-force-pull member protrusion 5-11b to move into the housing 1a, rather than the second reset member 5-2b driving the anti-force-pull member 5-1b to move the anti-force-pull member protrusion 5-11b into the housing 1a. The anti-force-pull member 5-1b also does not include an auxiliary unlocking portion 5-16b or a structure that cooperates with the second reset member 5-2b. This implementation of the anti-force-pull mechanism 5b eliminates the need for a second reset member 5-2b, reduces the number of components, and simplifies assembly.

[0194] The anti-force pulling member 5-1b includes an anti-force pulling member unlocking portion 5-18b, an anti-force pulling member mounting portion 5-13b and an anti-force pulling member connecting portion 5-12b connected in sequence. The anti-force pulling member 5-1b is rotatably set through the anti-force pulling member mounting portion 5-13b. One end of the anti-force pulling member connecting portion 5-12b is connected to the anti-force pulling member mounting portion 5-13b and the other end is provided with an anti-force pulling member protrusion 5-11b; the handle 1b also includes a first unlocking protrusion 1-8b. When the handle 1b slides to the handle opening position, the first unlocking protrusion 1-8b presses against the anti-force pulling member unlocking portion 5-18b and drives the anti-force pulling member 5-1b to rotate, so that the anti-force pulling member protrusion 5-11b moves into the outer shell 1a. Furthermore, the unlocking portion 5-18b of the anti-force pulling member is offset on one side of the anti-force pulling member connecting portion 5-12b along the rotation axis (i.e., direction d2) of the anti-force pulling member 5-1b; the first unlocking protrusion 1-8b is offset on one side of the first locking protrusion 1-6b along the rotation axis direction of the anti-force pulling member 5-1b.

[0195] The following will be combined Figure 2-3 , 5, 8, 11, and 32, the arc extinguishing system is described in detail:

[0196] The arc extinguishing system includes an arc extinguishing system shell and an arc extinguishing mechanism 12b arranged in the arc extinguishing system shell. The arc extinguishing mechanism 12b includes an arc extinguishing chamber 12-1b. The arc extinguishing system shell includes an arc extinguishing chamber installation cavity 2-3a for accommodating the arc extinguishing chamber 12-1b, an installation cavity inlet 2-4a and an installation cavity exhaust port 2-5a. The arc extinguishing chamber installation cavity 2-3a is connected to the external environment only through the installation cavity inlet 2-4a and the installation cavity exhaust port 2-5a. The installation cavity inlet 2-4a is used to supply the moving contact 11-1b with a moving One end of the contact 11-12b passes through and enters the installation cavity 2-3a, a part of the moving contact 11-1b (specifically a part of the moving contact plate 11-11b) moves in the installation cavity entrance 2-4a, and one end of the static contact 11-2b provided with the static contact 11-21b is located in the arc extinguishing chamber installation cavity 2-3a to cooperate with the arc extinguishing chamber 12-1b and the moving contact 11-1b. The arc generated by the closing and opening of the moving contact 11-12b and the static contact 11-21b will enter the arc extinguishing chamber 12-1 b, one end of the arc extinguishing chamber 12-1b is relatively connected to the installation cavity inlet 2-4a and is the arc entrance end, and the other end is relatively connected to the installation cavity exhaust port 2-5a and is the exhaust end. The installation cavity inlet 2-4a, the arc entrance end, the exhaust end and the installation cavity exhaust port 2-5a are arranged in sequence along the direction d1; the arc extinguishing chamber 12-1b includes two or more arc extinguishing grids 12-11b, and each arc extinguishing grid 12-11b is arranged in sequence side by side along the direction d2; the arc extinguishing system also includes An exhaust duct 12-5b is arranged in the arc extinguishing system shell and is located between the exhaust end and the installation cavity exhaust port 2-5a; in the direction d2, the exhaust duct 12-5b extends from one end of the arc extinguishing chamber 12-1b to the other end, that is, the entire exhaust end of the arc extinguishing chamber 12-1b is opposite to the exhaust duct 12-5b, and the installation cavity exhaust port 2-5a is relatively connected to one end of the exhaust duct 12-5b; one end of the exhaust duct 12-5b in the direction d2 is arranged opposite to the installation cavity exhaust port 2-5a along the direction d1. Furthermore, the installation cavity exhaust port 2-5a is also used to be opposite to the moving contact 11-12b of the moving contact 11-1b that moves to the disconnect position along the direction d1, that is, after the moving contact 11-1b moves to the disconnect position, its moving contact 11-12b is opposite to the installation cavity exhaust port 2-5a along the direction d1 (in other words, the position of the installation cavity exhaust port 2-5a is opposite to the moving contact 11-12b of the moving contact 11-1b that moves to the disconnect position along the direction d1).

[0197] The arc extinguishing system has the following advantages: 1. The arc extinguishing chamber 12-1b is located as a whole in the arc extinguishing system shell, which improves the airtightness of the space where the arc extinguishing chamber 12-1b is located, which is conducive to increasing the arc pressure and thus improving the arc extinguishing performance; 2. The exhaust duct 12-5b cooperates with the installation cavity exhaust port 2-5a to ensure that the gas in the arc extinguishing system is discharged in an orderly manner; 3. The position of the installation cavity exhaust port 2-5a is conducive to prolonging the dwelling time of the arc in the arc extinguishing chamber 12-1b, ensuring that the arc is fully extinguished, thereby eliminating or significantly reducing the possibility of unextinguished arc escaping from the arc extinguishing system.

[0198] Specifically, such as Figure 3 and 5 In the direction shown, the exhaust duct 12-5b extends in the left-right direction (i.e., direction d2), and the right end of the exhaust duct 12-5b (the end of the exhaust duct 12-5b in the direction d2) is arranged opposite to the installation cavity exhaust port 2-5a in the up-down direction (i.e., direction d1).

[0199] Furthermore, the planes where the arc-quenching grids 12-11b are located are perpendicular to the direction d2 and parallel to the directions d1 and d3; or, the arc-quenching grids 12-11b are tilted, for example, the arc-quenching grids 12-11b are tilted relative to the directions d1 and d2 and parallel to the direction d3.

[0200] Further, such as Figure 3 and 5 As shown, the exhaust duct 12-5b includes a first exhaust duct section 12-51b and a second exhaust duct section 12-52b arranged in sequence and connected along direction d2. One end of the first exhaust duct section 12-51b is the exhaust duct first end, and the other end is connected to one end of the second exhaust duct section 12-52b. The width of the first exhaust duct section 12-51b along direction d1 gradually increases from the exhaust duct first end to the other end of the first exhaust duct section 12-51b. The installation cavity exhaust port 2-5a is relatively connected to the second exhaust port section 12-52b along direction d1. In direction d2, the length of the first exhaust duct section 12-51b is greater than or equal to the length of the second exhaust duct section 12-52b. Furthermore, the width of the second exhaust duct section 12-52b in direction d1 remains unchanged.

[0201] Specifically, on the projection of the arc extinguishing system perpendicular to the direction d3, the first section 12-51b of the exhaust duct is a wedge-shaped structure as a whole, the second section 12-52b of the exhaust duct is a rectangular structure as a whole, and the large diameter end of the first section 12-51b of the exhaust duct is connected to the second section 12-52b of the exhaust duct.

[0202] The shape design of the exhaust duct 12-5b and the structure from narrow to wide have a guiding function, which is conducive to the gas discharged from the arc extinguishing chamber 12-1b to be stably and orderly guided to the exhaust port 2-5a of the installation cavity for discharge, ensuring that the gas is fully and reliably discharged from the arc extinguishing system, reducing the pressure accumulation at the bottom of the exhaust end of the arc extinguishing chamber, and making the arc enter the arc extinguishing grid 12-11b of the arc extinguishing chamber 12-1b more smoothly, so that the arc can be cut by the arc extinguishing grid 12-11b more quickly, thereby improving the arc extinguishing efficiency.

[0203] Further, such as Figure 3 and 5 As shown, the arc extinguishing mechanism 12b further includes a stray arc extinguishing plate 12-4b arranged in the installation cavity exhaust 2-5a, and the stray arc extinguishing plate 12-4b further prevents the stray arc from being discharged from the arc extinguishing system through the installation cavity exhaust port 2-5a.

[0204] Further, such as Figure 2-3 As shown in Figures 5 and 32, the arc extinguishing mechanism 12b further includes a moving contact arc-strike plate 12-2b and a static contact arc-strike plate 12-3b. One end of the moving contact arc-strike plate 12-2b and the static contact arc-strike plate 12-3b are respectively arranged side by side with the arc extinguishing chamber 12-1b along the direction d2 and are respectively arranged on both sides of the arc extinguishing chamber 12-1b in the direction d2 and are arranged side by side with the arc extinguishing grid 12-11b at intervals. The moving contact arc-strike plate 12-2b is used to cooperate with the moving contact 11-1b that moves to the disconnected position, and the other end of the static contact arc-strike plate 12-3b is used to cooperate with the static contact 11-2b. Furthermore, one end of the moving contact arc-strike plate 12-2b and the static contact arc-strike plate 12-3b are respectively arranged side by side with the arc extinguishing chamber 12-1b along the direction d2 and the other ends are both inclined toward the middle of the arc entrance end along the direction d2 and the two are inclined toward each other.

[0205] Specifically, one end of the moving contact arc-starting plate 12-2b is arranged side by side with the arc extinguishing chamber 12-1b and the other end is in contact with the moving contact 11-1b that moves to the disconnected position. Furthermore, the moving contact arc-starting plate 12-2b includes a first mating section 12-21b, and the first mating section 12-21b is used to be parallel to and in contact with the moving contact plate 11-11b of the moving contact 11-1b that moves to the disconnected position. Furthermore, the moving contact arc-starting plate 12-2b also includes a first middle section 12-22b that is bent and connected to the first mating section 12-21b; the moving contact 11-1b also includes a moving contact arc-starting angle set on the moving contact plate 11-11b, and the first middle section 12-22b is used to fit the moving arc-starting angle of the moving contact 11-1b that moves to the disconnected position. The first mating section 12-21b and the first middle section 12-22b cooperate with the moving contact 11-1b, which is conducive to the transfer of the arc from the moving contact 11-1b to the moving contact arc-starting plate 12-2b, thereby reducing the burning of the moving contact 11-1b. Furthermore, the moving contact arc-starting plate 12-2b also includes a first tail section 12-23b, the first mating section 12-21b, the first middle section 12-22b and the first tail section 12-23b are bent and connected in sequence, and the first tail section 12-23b is arranged parallel to the arc-extinguishing grid 12-11b of the arc-extinguishing chamber 12-1b at intervals, and the first mating section 12-21b, the first middle section 12-22b and the first tail section 12-23b are arranged in sequence in the direction d1 and It is arranged gradually close to the arc extinguishing chamber 12-1b, one end of the first middle section 12-22b is connected to the first tail section 12-23b and the other end is inclined toward the middle of the arc entrance end of the arc extinguishing chamber 12-1b relative to the first tail section 12-23b in the direction d2, and one end of the first matching section 12-21b is connected to the first middle section 12-22b and the other end is inclined toward the middle of the arc entrance end of the arc extinguishing chamber 12-1b relative to the first middle section 12-22b in the direction d2.

[0206] As another embodiment of the movable contact arc striking plate 12-2b, the movable contact 11-1b is not provided with a movable contact arc striking angle, and the first mating section 12-21b and the first intermediate section 12-22b are coplanar. In addition, due to the size limitation of the arc extinguishing chamber, the first mating section 12-21b and the first intermediate section 12-22b can also be coplanar and mated with the movable contact 11-1b. The structure of the movable contact 11-1b is also changed accordingly. Those skilled in the art can make such configurations as needed, and this will not be elaborated here.

[0207] Specifically, one end of the static contact arc-starting plate 12-3b is arranged side by side with the arc extinguishing chamber 12-1b and the other end is connected to the static contact 11-2b, which is conducive to the arc being transferred from the static contact 11-2b to the static contact arc-starting plate 12-3b as soon as possible to reduce the burning of the static contact 11-2b. Furthermore, the static contact arc-starting plate 12-3b includes a second matching section 12-31b, a second middle section 12-32b and a second tail section 12-33b, the second matching section 12-31b is connected to the static contact plate 11-22b of the static contact 11-2b (specifically, the first section 11-221b of the static contact plate 11-22b provided with the static contact point 11-21b) and contacts the static contact point 11-21b, the second tail section 12-33b is arranged in parallel with the arc-extinguishing grid 12-11b of the arc-extinguishing chamber 12-1b, and the second matching section 12-31b is connected to the static contact plate 11-22b of the static contact 11-2b (specifically, the first section 11-221b of the static contact plate 11-22b provided with the static contact point 11-21b) and contacts the static contact point 11-21b. The second middle section 12-32b and the second tail section 12-33b are arranged in sequence in the direction d1 and gradually approach the arc extinguishing chamber 12-1b, one end of the second middle section 12-32b is connected to the second tail section 12-33b and the other end is inclined relative to the second tail section 12-33b in the direction d2 toward the middle of the arc entrance end of the arc extinguishing chamber 12-1b, and one end of the second matching section 12-31b is connected to the second middle section 12-32b and the other end is inclined relative to the second middle section 12-32b in the direction d2 toward the middle of the arc entrance end of the arc extinguishing chamber 12-1b.

[0208] As another embodiment of the static contact arc striking plate 12-3b, the second mating section 12-31b and the second middle section 12-32b are coplanar.

[0209] Further, such as Figure 3-5 As shown, the moving contact arc-starting plate 12-2b is also used to electrically connect with the circuit where the moving contact 11-1b and the static contact 11-2b (that is, the contact system 11b) are located, so that the moving contact arc-starting plate 12-2b and the moving contact 11-1b are at the same potential. When the moving contact 11-1b and the static contact 11-2b are separated, it is beneficial to increase the speed of the arc transferring from the moving contact 11-1b to the moving contact arc-starting plate 12-2b, effectively protect the moving contact 11-1b, and improve the breaking capacity of the contact system 11b.

[0210] Specifically, the switch device of the present invention also includes an equipotential member, one end of which is electrically connected to the moving contact arc-starting plate 12-2b and the other end is electrically connected to the circuit board device p. Furthermore, the equipotential member is an equipotential column 16b, one end of which is electrically connected to the moving contact arc-starting plate 12-2b and the other end is electrically connected to the circuit board device p. The equipotential column 16b has a simple structure and is easy to install. Furthermore, the equipotential column 16b extends along direction d2, and the moving contact arc-starting plate 12-2b, the equipotential column 16b, and the second circuit board 2-1p of the second circuit board assembly 2p of the circuit board device p are arranged in sequence along direction d2. The equipotential column 16b has one end electrically connected to the moving contact arc-starting plate 12-2b and the other end is electrically connected to the second circuit board 2-1p. Furthermore, the first sampling terminal 2-4p, the second circuit board 2-1p, the equipotential member and the moving contact arc-starting plate 12-2b of the circuit board device p are electrically connected in sequence, thereby achieving the equipotentiality of the moving contact arc-starting plate 12-2b and the moving contact 11-1b (contact system 11b); the equipotentiality of the moving contact arc-starting plate 12-2b and the moving contact 11-1b can make the arc be drawn to the moving contact arc-starting angle more quickly, because if the moving contact arc-starting plate 12-2b and the moving contact 11-1b are not at the same potential during the process from the opening of the moving contact 11-1b to the moving contact moving to contact the moving contact arc-starting angle, the arc will either remain at 11-12b or the arc will transfer slowly, which will not only burn the moving contact 11-12b, but also affect the efficiency of the arc being cut by the arc-extinguishing grid 12-11b of the arc-extinguishing chamber 12-1b. Furthermore, the second circuit board 2 - 1 p is provided with a printed circuit, which is electrically connected to the first sampling terminal 2 - 4 p and is also electrically connected to the equipotential member.

[0211] As another embodiment of the equipotential member, the equipotential member is a wire, both ends of which are electrically connected to the moving contact arc-starting plate 12 - 2b and the circuit board device p respectively.

[0212] Further, such as Figure 2 and 32 As shown, the arc extinguishing chamber 12-1b also includes arc extinguishing chute plates 12-12b spaced side by side in a direction d3. Each arc extinguishing grid plate 12-11b is disposed between two arc extinguishing chute plates 12-12b, and each arc extinguishing grid plate 12-11b is fixedly connected or snap-fitted to the two arc extinguishing chute plates 12-12b. Furthermore, the moving contact arc striking plate 12-2b is disposed between the two arc extinguishing chute plates 12-12b in a direction d3, and one end (specifically, the first tail section 12-23b of the moving contact arc striking plate 12-2b) is fixedly connected to the two arc extinguishing chute plates 12-12b.

[0213] As another embodiment of the arc extinguishing chamber 12-1b, the arc extinguishing chamber 12-1b is not provided with an arc extinguishing chute 12-12b, but the arc extinguishing grid 12-11b is directly fixed on the side wall of the arc extinguishing chamber installation cavity 2-3a of the arc extinguishing system shell.

[0214] Further, such as Figure 2 and 32 As shown, the arc extinguishing chamber 12-1b also includes two gas-producing plates 12-13b spaced relative to each other along direction d3. A movement gap is formed between the two gas-producing plates 12-13b for inserting and moving one end of the moving contact 11-1b provided with the moving contact 11-12b therein. The arc extinguishing grid 12-11b includes two grid pins spaced relative to each other along direction d3, with the two grid pins located on either side of the two gas-producing plates 12-13b. The gas-producing plates 12-13b generate gas under the burning of the arc, which helps promote the arc to enter between the arc extinguishing grids 12-11b of the arc extinguishing chamber 12-1b and cool the arc, thereby improving arc extinguishing efficiency. Furthermore, the gas-producing plates 12-13b are provided with grid pin slots into which the grid pins are inserted and which cooperate with the grid pins one-to-one.

[0215] As other embodiments of the arc extinguishing chamber 12-1b, Figure 33 As shown, the arc-extinguishing chamber 12-1b is not provided with an arc-extinguishing chute 12-12b. Instead, the arc-extinguishing grids 12-11b of the arc-extinguishing chamber 12-1b are directly fixed to the two gas-generating plates 12-13b. A pair of side edges of each arc-extinguishing grid 12-11b are fixedly connected or snap-fitted to the two gas-generating plates 12-13b. Furthermore, a pair of side edges of the first tail section 12-23b of the moving contact arc-starting plate 12-2b are also fixed to the two gas-generating plates 12-13b.

[0216] Furthermore, the two gas production plates 12 - 13 b are an integrated structure.

[0217] Furthermore, an arc extinguishing grid opening is formed between the two grid feet of the arc extinguishing grid 12-11b, and the bottom surface of the arc extinguishing grid opening (that is, the side surfaces of the arc extinguishing grid opening respectively connected to the two grid feet) is a slope, and the end of the bottom surface connected to one grid foot is offset toward the exhaust end of the arc extinguishing chamber 12-1b relative to the end of the bottom surface connected to the other grid foot. The bottom surfaces of the arc extinguishing grid openings of adjacent arc extinguishing grids are cross-arranged, which is beneficial to reducing the resistance of the arc entering between the arc extinguishing grids 12-11b, so that the arc entering between the arc extinguishing grids 12-11b is cut, and the number of types of arc extinguishing grids in the arc extinguishing chamber 12-1b can be reduced.

[0218] Further, such as Figure 1-3As shown in Figures 5, 7, 10-11, the shell of the switch device of the present invention also includes an inner shell 2a arranged in the outer shell 1a, and at least an arc extinguishing mechanism 12b of the arc extinguishing system is provided in the inner shell 2a, that is, the inner shell 2a serves as the arc extinguishing system shell of the arc extinguishing system. The inner shell 2a can be used only to accommodate the arc extinguishing mechanism 12b, and can also be used to accommodate more components including the arc extinguishing mechanism 12b (such as an operating mechanism 7b, a contact system 11b, a thermal tripping mechanism 9b, a magnetic tripping mechanism 10b, an electric reclosing mechanism 8b and a first circuit board assembly 1p of the circuit board device p). Furthermore, the operating mechanism 7b, electric reclosing mechanism 8b, thermal trip mechanism 9b, magnetic trip mechanism 10b, contact system 11b, arc extinguishing mechanism 12b of the arc extinguishing system, and first circuit board assembly 1p are all disposed within the inner housing 2a. The handle 1b, first wiring device, second wiring device, manganese-copper shunt 13b, first connecting plate 14b, second connecting plate 1c, second circuit board assembly 2p of the circuit board assembly p, anti-force closing mechanism 4b, and anti-force pulling mechanism 5b are all disposed outside the inner housing 2a and within the outer housing 1a. Furthermore, the inner housing 2a comprises a first inner half-shell 2-1a and a second inner half-shell 2-2a, which are joined relative to each other along direction d3. Furthermore, the arc extinguishing chamber installation cavity 2-3a includes a first half cavity 2-14a arranged in the first inner half shell 2-1a and a second half cavity 2-24a arranged in the second inner half shell 2-2a, and the first half cavity 2-14a and the second half cavity 2-24a are relatively spliced ​​together along the direction d3 to form the arc extinguishing chamber installation cavity 2-3a; the installation cavity inlet 2-4a is composed of a first inlet groove arranged in the first inner half shell 2-1a and a second inlet groove arranged in the second inner half shell 2-2a, which are relatively spliced ​​together along the direction d3; the installation cavity exhaust port 2-5a is composed of a first outlet groove arranged on the first inner half shell 2-1a and a second outlet groove arranged on the second inner half shell 2-2a, which are relatively spliced ​​together along the direction d3.

[0219] like Figure 1-3 , 5, 7-11 show a layout of the switch device of the present invention:

[0220] The first circuit and the second circuit are both arranged in the outer shell 1a; the operating mechanism 7b, electric reclosing mechanism 8b, thermal trip mechanism 9b, magnetic trip mechanism 10b, contact system 11b, and arc extinguishing mechanism 12b of the arc extinguishing system are all arranged in the inner shell 2a.

[0221] In the direction d1, the first wiring device and the handle 1b are arranged in one end of the housing 1a and the second wiring device is arranged in the other end of the housing 1a, which also means that the wiring device 6b and the handle 1b are arranged in one end of the housing 1a and the second wiring device is arranged in the other end of the housing 1a, which also means that the first wiring device (wiring device 6b) is located outside one end of the inner housing 2a in the direction d1, and the second wiring device is arranged outside the other end of the inner housing 2a; the first wiring device and the handle 1b are arranged side by side along the direction d3, which also means that the wiring device 6b and the handle 1b are arranged side by side along the direction d3; the handle 1b, the operating mechanism 7b, the contact system 11b, and the arc extinguishing chamber 12-1b of the arc extinguishing mechanism 12b are arranged in sequence along the direction d1, and the operating mechanism 7b, contact system 11b, and arc extinguishing chamber 12-1b are located between handle 1b and the second wiring device in direction d1. Of course, the operating mechanism 7b, contact system 11b, and arc extinguishing chamber 12-1b are also located between the first wiring device (wiring device 6b) and the second wiring device in direction d1. The movable contact 11-1b and fixed contact 11-2b of the contact system 11b are arranged opposite each other in direction d2. In direction d3, the first connecting plate 14b and manganese-copper shunt 13b of the first circuit are located on the same side of the operating mechanism 7b and contact system 11b and between the inner housing 2a and the outer housing 1a. The second connecting plate 1c of the second circuit is located on the other side of the operating mechanism 7b and contact system 11b and between the inner housing 2a and the outer housing 1a. Furthermore, the first connecting plate 17b and the second connecting plate 18b of the first circuit are located on the same side of the operating mechanism 7b and contact system 11b in direction d2 and are at least partially located within the inner housing 2a.

[0222] The dimensions of the outer shell 1a in direction d2 are greater than those in direction d3, providing greater operating space for the movable contact 11b, thereby increasing the opening distance between the movable contact 11-1b and the stationary contact 11-2b and improving the breaking performance of the switchgear of the present invention. Furthermore, the arrangement of the various components is rational and compact. Furthermore, the operating mechanism 7b, electric reclosing mechanism 8b, thermal trip mechanism 9b, magnetic trip mechanism 10b, and arc extinguishing mechanism 12b of the arc extinguishing system are first installed within the inner shell 2a and then assembled into the outer shell 1a, facilitating efficient installation.

[0223] Furthermore, the electric reclosing mechanism 8b is arranged between the handle 1b and the operating mechanism 7b in the direction d1.

[0224] Furthermore, the first circuit board 1-1p of the first circuit board assembly 1p is arranged perpendicular to the direction d3, and the first circuit board 1-1p is arranged between the handle 1b and the first rotating shaft structure 7r of the operating mechanism 7b in the direction d1, and the first circuit board assembly 1p is arranged inside the inner shell 2a; the second circuit board 2-1p of the second circuit board assembly 2p is arranged perpendicular to the direction d2, and the second circuit board 2-1p is located on one side of the operating mechanism 7b in the direction d2 and is located between the inner shell 2a and the outer shell 1a.

[0225] Furthermore, the thermal trip mechanism 9b and the magnetic trip mechanism 10b are located on the same side of the operating mechanism 7b in direction d2. The thermal trip mechanism 9b and the magnetic trip mechanism 10b are arranged side by side in direction d1. The thermal trip mechanism 9b, the magnetic trip mechanism 10b, the first connecting plate 17b, and the second connecting plate 18b are located on the same side of the operating mechanism 7b in direction d2. Furthermore, the bimetallic strip 9-1b of the thermal trip mechanism 9b extends in direction d1; the armature 10-1b and the yoke 10-2b of the magnetic trip mechanism 10b are arranged side by side in direction d1, with the armature 10-1b being movable in direction d1; and the bimetallic strip 9-1b, the armature 10-1b, and the yoke 10-2b are arranged sequentially in direction d1.

[0226] Furthermore, the second negative electrode connection component (ie, the first busbar clamp 15b) and the second positive electrode connection component (ie, the second busbar clamp 2c) are arranged side by side along the direction d3.

[0227] Furthermore, the rotation axis direction of the indicating member 2b of the indicating mechanism i is parallel to the direction d3.

[0228] Furthermore, the anti-strong pulling mechanism 5b and the handle 1b are arranged side by side along the direction d3.

[0229] Furthermore, the anti-forced closing mechanism 4b and the wiring device 6b are arranged side by side along the direction d3, and the anti-forced closing mechanism 4b and the handle 1b are arranged side by side along the direction d1.

[0230] Furthermore, the anti-force pulling mechanism 5b and the anti-force closing mechanism 4b are arranged side by side along the direction d2.

[0231] like Figure 1-2 , 7-8, and 10-11 are an embodiment of the housing of the switch device of the present invention.

[0232] The housing 1a includes a first space r1, a second space r2 and a third space r3 arranged in sequence along the direction d1. The first space r1 is used to accommodate the handle 1b and the first wiring device, the third space r3 is used to accommodate the second wiring device, the second space r2 is used to accommodate the operating mechanism 7b, the moving contact 11-1b, the static contact 11-2b and the inner housing 2a, and the inner housing 2a includes an arc extinguishing chamber installation cavity 2-3a, an installation cavity inlet 2-4a and an installation cavity exhaust port 2-5a all arranged therein. The arc extinguishing chamber installation cavity 2-3a is only accessible by the installation cavity. The mounting cavity inlet 2-4a and the mounting cavity exhaust port 2-5a are connected to the external environment. The mounting cavity inlet 2-4a is at least used for allowing one end of the moving contact 11-1b provided with the moving contact 11-12b to pass through and enter the arc extinguishing chamber mounting cavity 2-3a. The arc extinguishing chamber mounting cavity 2-3a is also used to accommodate the arc extinguishing chamber 12-1b of the circuit breaker and one end of the static contact 11-2b provided with the static contact 11-21b, that is, the arc extinguishing chamber 12-1b and one end of the static contact 11-2b provided with the static contact 11-21b are both arranged in the arc extinguishing chamber mounting cavity 2-3a.

[0233] The housing provides an independent space for the arc extinguishing chamber, thereby improving the airtightness of the space in which the arc extinguishing chamber is located, which is conducive to increasing the arc voltage, thereby improving the arc extinguishing performance, and can completely eliminate or significantly reduce the possibility of unextinguished arc escaping from the arc extinguishing chamber, thereby preventing other components of the circuit breaker from being burned by the arc.

[0234] Furthermore, the inner housing 2a also includes a fourth space r4 for accommodating the operating mechanism 7b and the movable contact 11-1b, and a sixth space r6 for accommodating at least the static contact 11-2b. The fourth space r4, the mounting chamber entrance 2-4a, and the arc-extinguishing chamber mounting chamber 2-3a are sequentially arranged and interconnected along direction d1. The first space r1, the fourth space r4, the mounting chamber entrance 2-4a, the arc-extinguishing chamber mounting chamber 2-3a, and the third space r3 are sequentially arranged along direction d1. A static contact receptacle 2-6a is provided on the sidewall of the mounting chamber entrance 2-4a, through which the end of the static contact 11-2b, equipped with the static contact point 11-21b, passes and enters the arc-extinguishing chamber mounting chamber 2-3a. Furthermore, the fourth space r4 also accommodates the electric reclosing mechanism 8b and the first circuit board assembly 1p.

[0235] Specifically, the static contact socket 2-6a is formed by relatively splicing together two static contact half sockets respectively arranged on the first inner half shell 2-1a and the second inner half shell 2-2a. During actual assembly, the static contact plate 11-22b of the static contact 11-2b is first inserted into one static contact half socket, and then the first inner half shell 2-1a and the second inner half shell 2-2a are relatively spliced ​​together, so that the static contact plate 11-22b is inserted into the other static contact half socket, thereby achieving the fixation of the static contact 11-2b.

[0236] Furthermore, the inner housing 2a includes a fifth space r5 for accommodating the thermal trip mechanism 9b, and a sixth space r6 for accommodating the magnetic trip mechanism 10b. The fifth and sixth spaces r5 and r6 are arranged sequentially along direction d1 and communicate with each other. The fifth space r5 and the fourth space r4 are connected via a wire channel 2-7a, which is used to pass flexible wires electrically connected to the thermal trip mechanism 9b and the movable contact 11-1b, respectively. The fifth and sixth spaces r5 and r6 are located to one side of the fourth space r4 in direction d2. Furthermore, of the two ends of the sixth space 6 in direction d1, one end is aligned with the fourth space r4 in direction d2 and communicates with the fifth space r5, and the other end is aligned with the arc extinguishing chamber mounting cavity 2-3a in direction d2.

[0237] The above layout means that the inner housing 2a is placed within the second space r2 of the outer housing 1a, while the operating mechanism 7b, electric reclosing mechanism 8b, contact system 11b, arc extinguishing mechanism 12b, and first circuit board assembly 1p are arranged within the inner housing 2a. One end of the movable contact 11-1b is inserted into the fourth space r4 to engage with the first rotating shaft 7-4b of the operating mechanism 7b, and the other end passes through the installation cavity entrance 2-4a to enter the arc extinguishing chamber installation cavity 2-3a. A portion of the stationary contact 11-2b (the second section 11-222b and the third section 11-223b of the stationary contact plate) is located in the sixth space r6 to engage with the magnetic tripping mechanism 10b, while the other portion (the first section 11-221b of the stationary contact plate and the stationary contact point 11-21b) enters the arc extinguishing chamber installation cavity 2-3a to engage with the movable contact 11-1b and the arc extinguishing chamber 12-1b.

[0238] Furthermore, the housing also includes a second gap and a third gap respectively arranged between the outer shell 1a and the inner shell 2a. The second gap and the third gap are respectively located on both sides of the inner shell 2a in the direction d3. The second gap is used to accommodate the first connecting plate 14b and the manganese-copper shunt 13b connected in series on both sides of the contact system 11b, and the third gap is used to accommodate the second connecting plate 1c of the second circuit.

[0239] Furthermore, the shell also includes a first gap arranged between the outer shell 1a and the inner shell 2a, and the first gap is arranged side by side with the inner shell 2a in the direction d2. The first gap is used to accommodate the second circuit board assembly 2p and is arranged side by side with the inner shell 2a along the direction d2.

[0240] Furthermore, the housing also includes a terminal block 6-1b of a wiring device 6b disposed within the first space r1, the terminal block 6-1b being arranged side by side with the inner shell 2a along direction d1; the housing also includes a handle mounting cavity disposed between the terminal block 6-1b and the outer shell 1a, the handle mounting cavity being configured for the handle 1b to be slidably disposed therein and being arranged side by side with the terminal block 6-1b along direction d3. Furthermore, the terminal block 6-1b includes a wiring hole 6-13b disposed thereon and a terminal block retaining wall 6-15b, the terminal block retaining wall 6-15b being located between the wiring hole 6-13b and the handle mounting cavity along direction d3, the terminal block retaining wall 6-15b being configured for an operator to pull out the switch device from its mounting position (e.g., a cabinet, a distribution cabinet, etc.), and the terminal block retaining wall 6-15b can also separate an external conductor inserted into the wiring hole 6-13b from the handle 1b, thereby preventing the movement of the handle 1b from being obstructed by the external conductor. Furthermore, the terminal block 6-1b includes a terminal block body 6-11b and a terminal block retaining wall 6-15b, and the wiring hole 6-13b, the terminal cavity 6-12b, the operating hole 6-14b, and the wiring side wall 6-111b are all arranged on the terminal block body 6-11b, and one end of the terminal block retaining wall 6-15b is connected to the wiring side wall 6-111b.

[0241] Furthermore, the housing 1a further includes heat dissipation holes 1-9a, and the heat dissipation holes 1-9a are provided on a pair of side walls of the housing 1a perpendicular to the direction d2.

[0242] Furthermore, the shell 1a also includes a guide rib 1-23a arranged on its outer surface for cooperating with the guide groove on the shell w of the installation position. The guide rib 1-23a extends along the direction d1. The guide rib 1-23a ensures that the switch device of the present invention is installed in the installation position in the correct posture.

[0243] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, or are conventionally placed directions or positional relationships during use. They are intended solely for ease of description and do not imply that the devices or components referred to must have a specific direction. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely for distinction and description and should not be construed as indicating relative importance.

[0244] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For those skilled in the art of the present invention, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should be considered to fall within the scope of protection of the present invention.

Claims

1. A circuit breaker housing, wherein the length direction, width direction and height direction are respectively direction d1, direction d2 and direction d3; the housing comprises an outer shell (1a) and an inner shell (2a); Its characteristics are: The housing (1a) comprises a first space (r1), a second space (r2) and a third space (r3) arranged in sequence along a direction d1 therein, the first space (r1) being used to accommodate a handle (1b) and a first wiring device of the circuit breaker, the third space (r3) being used to accommodate a second wiring device of the circuit breaker, one of the first wiring device and the second wiring device being an incoming terminal and the other being an outgoing terminal, the second space (r2) being used to accommodate an operating mechanism (7b), a moving contact (11-1b), a static contact (11-2b) and an inner housing (2a) of the circuit breaker, the inner housing (2a) comprising an arc extinguishing chamber arranged therein The arc extinguishing chamber installation cavity (2-3a) comprises an installation cavity (2-3a), an installation cavity inlet (2-4a) and an installation cavity exhaust port (2-5a); the arc extinguishing chamber installation cavity (2-3a) is communicated with the external environment only through the installation cavity inlet (2-4a) and the installation cavity exhaust port (2-5a); the installation cavity inlet (2-4a) is used for allowing at least one end of a moving contact (11-1b) of a circuit breaker provided with a moving contact point (11-12b) to pass through and be inserted into the arc extinguishing chamber installation cavity (2-3a); the arc extinguishing chamber installation cavity (2-3a) is used for accommodating an arc extinguishing chamber (12-1b) of the circuit breaker and one end of a stationary contact (11-2b) of the circuit breaker provided with a stationary contact point (11-21b).

2. The circuit breaker housing according to claim 1, wherein: The inner shell (2a) is also used to accommodate an operating mechanism (7b) and a fourth space (r4) of a moving contact (11-1b), and a fifth space (r5) for accommodating at least a static contact (11-2b). The fourth space (r4), the installation cavity inlet (2-4a), and the arc extinguishing chamber installation cavity (2-3a) are sequentially arranged along a direction d1 and are sequentially connected. The first space (r1), the fourth space (r4), the installation cavity inlet (2-4a), the arc extinguishing chamber installation cavity (2-3a), and the third space (r3) are sequentially arranged along the direction d1. A static contact jack (2-6a) is provided on the side wall of the installation cavity inlet (2-4a) for allowing one end of the static contact (11-2b) provided with a static contact point (11-21b) to pass through and enter the arc extinguishing chamber installation cavity (2-3a).

3. The circuit breaker housing according to claim 2, wherein: The fourth space (r4) is also used to accommodate the electric reclosing mechanism (8b) of the circuit breaker and the first circuit board assembly (1p) of the circuit breaker.

4. The circuit breaker housing according to claim 3, wherein: The inner shell (2a) further includes a fifth space (r5) for accommodating a thermal trip mechanism (9b) of the circuit breaker, and a sixth space (r6) for accommodating a magnetic trip mechanism (10b) of the circuit breaker. The fifth space (r5) and the fourth space (r4) are connected to each other through a wire channel (2-7a). The wire channel (2-7a) is used for allowing soft wires electrically connected to the thermal trip mechanism (9b) and the moving contact (11-1b) to pass through. The fifth space (r5) and the sixth space (r6) are arranged in sequence along a direction d1 and are connected to each other. The fifth space (r5) and the sixth space (r6) are located on one side of the fourth space (r4) in the direction d2.

5. The circuit breaker housing according to claim 4, wherein: The housing further comprises a second gap and a third gap respectively arranged between the outer shell (1a) and the inner shell (2a); the second gap and the third gap are respectively located on both sides of the inner shell (2a) in the direction d3; the second gap is used to accommodate a first connecting plate (14b) and a manganese-copper shunt (13b) respectively connected in series on both sides of the contact system (11b) of the circuit breaker; and the third gap is used to accommodate a second connecting plate (1c) of a second circuit of the circuit breaker.

6. The circuit breaker housing according to claim 4, wherein: The housing further comprises a first gap arranged between the outer shell (1a) and the inner shell (2a) and arranged side by side with the inner shell (2a) along a direction d2, the first gap being used to accommodate a second circuit board (2-1p) of a second circuit board assembly (2p) of the circuit breaker.

7. The circuit breaker housing according to claim 1, wherein: The housing further comprises a wiring seat (6-1b) arranged in the first space (r1) and arranged side by side with the inner shell (2a) along the direction d1, the wiring seat (6-1b) being used to accommodate a first wiring component; the housing further comprises a handle installation cavity arranged between the wiring seat (6-1b) and the outer shell (1a) and arranged side by side with the wiring seat (6-1b) along the direction d3, the handle installation cavity being used for the handle (1b) of the circuit breaker to be slidably installed therein.

8. The circuit breaker housing according to claim 7, wherein: The wiring seat (6-1b) comprises a wiring hole (6-13b) and a wiring seat retaining wall (6-15b) provided thereon, wherein the wiring seat retaining wall (6-15b) is located between the wiring hole (6-13b) and the handle installation cavity in the direction d3.

9. The circuit breaker housing according to claim 8, wherein: The handle installation cavity is also used to accommodate the circuit breaker's anti-forced pulling mechanism (5b) and the circuit breaker's anti-forced closing mechanism (4b).

10. The circuit breaker housing according to claim 1, wherein: The outer shell (1a) comprises a first outer half shell (1-1a) and a second outer half shell (1-2a) relatively joined together along a direction d2; the inner shell (2a) comprises a first inner half shell (2-1a) and a second inner half shell (2-2a) relatively joined together along a direction d3.

11. The circuit breaker housing according to claim 1, wherein: The housing (1a) further comprises heat dissipation holes (1-9a), and the heat dissipation holes (1-9a) are both provided on a pair of side walls of the housing (1a) perpendicular to the direction d2; the housing (1a) further comprises guide ribs (1-23a) arranged on its outer surface and used to cooperate with guide grooves on the housing (w) at the installation position, and the guide ribs (1-23a) extend along the direction d1.

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