CN220065468U - Shell structure of switch - Google Patents

Abstract

The utility model provides a shell structure of switch, includes the shell body, still including setting up the inner shell body in the shell body, be equipped with the contact support sliding space that is used for installing the contact support in the inner shell body, be used for installing two static contact spaces of static contact, be used for installing two explosion chamber spaces of explosion chamber, two static contact space symmetry sets up in contact support sliding space both sides, two explosion chamber space symmetry set up in contact support sliding space both sides, be equipped with in the contact support sliding space with contact support straight line sliding fit's guide structure, still be equipped with the inner shell body that is used for encapsulation contact mechanism through in the shell body, the inner shell body is with static contact, moving contact, after the explosion chamber encapsulation is the contact module, whole installation is in the shell body again, can wholly be used for different switch products, reduce the design cycle and the manufacturing cost of switch product, moreover be convenient for assemble and change.

Description

Shell structure of switch

Technical Field

The utility model relates to the field of piezoelectric devices, in particular to a shell structure of a switch.

Background

The existing switch suitable for new energy automobiles is characterized in that the contact mechanisms are directly arranged in a switch shell, the assembly and the replacement are complex, the types of the new energy automobiles are more, in order to meet different requirements, various switches with different specifications and different shapes are required to be provided, each switch is required to be provided with a contact support structure, a moving contact structure, a fixed contact structure and other mounting structures for mounting the contact mechanisms, the design period is long, and the production cost is relatively high.

Disclosure of Invention

The utility model aims to overcome at least one defect in the prior art and provide a shell structure of a switch.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a shell structure of switch, includes the shell body, still includes the inner shell body that sets up in the shell body, be equipped with the contact support slip space that is used for installing the contact support in the inner shell body for install two static contact spaces of static contact, be used for installing two explosion chamber spaces of explosion chamber, two static contact space symmetry set up in contact support slip space both sides, two explosion chamber space symmetry set up in contact support slip space both sides, be equipped with in the contact support slip space with contact support straight line sliding fit's guide structure.

Preferably, the two static contact spaces are respectively arranged between the two arc extinguishing chamber spaces and the contact supporting sliding space, and a static contact space is arranged between each arc extinguishing chamber space and the contact supporting sliding space.

Preferably, a permanent magnet and a magnetic conductive plate are provided between the inner case and the outer case.

Preferably, the inner housing is provided with a first inner housing hole, and the contact support can extend from the first inner housing hole to increase the moving stroke thereof.

Preferably, a first linkage hole is formed in the side wall of the outer shell, and a linkage piece used for being connected with the contact support passes through the first linkage hole to drive the contact support to linearly move.

Preferably, a first outer groove for mounting the permanent magnet is provided at the outer side of the inner case.

Preferably, the first outer groove is used for mounting the magnetic conductive plate at the same time.

Preferably, the inner housing comprises an inner housing first side wall and an inner housing second side wall which are arranged at intervals relatively, an inner housing third side wall and an inner housing fourth side wall which are arranged at intervals relatively, the inner housing third side wall and the inner housing fourth side wall are connected between the inner housing first side wall and the inner housing second side wall, the inner housing first side wall, the inner housing second side wall, the inner housing third side wall and the inner housing fourth side wall enclose a space with openings on the left side and the right side, the sliding direction supported by the contact is parallel to the inner housing first side wall and the inner housing second side wall and is perpendicular to the inner housing third side wall and the inner housing fourth side wall, and the inner housing third side wall is provided with the first inner housing hole.

Preferably, a second inner shell hole is formed in the fourth side wall of the inner shell, a second protrusion is arranged in the outer shell, and the second protrusion can extend into the contact support from the second inner shell hole to be matched with the contact support.

Preferably, the outer shell is in a cuboid structure and comprises a first upper side wall, a first lower side wall, a first left side wall, a first right side wall, a first front side wall and a first rear side wall, wherein the first upper side wall and the first lower side wall are oppositely arranged at intervals; the first upper side wall and the first lower side wall are perpendicular to the sliding direction supported by the contact.

Preferably, the first front side wall and/or the first rear side wall are/is provided with a first linkage hole, the first linkage hole is long and strip-shaped, and the length direction of the first linkage hole is parallel to the moving direction supported by the contact.

Preferably, the first upper side wall is provided with two power supply wiring parts.

Preferably, a first protrusion is provided on a first upper side wall of the outer case at a position corresponding to the contact supporting moving direction, and the first protrusion is located between the two power supply connection parts.

Preferably, the first protrusion is disposed corresponding to a movement track of the contact support, and the contact support is capable of moving into the first protrusion.

Preferably, the first left side wall and the first right side wall are provided with exhaust ports.

Preferably, the inner housing includes a first partition and a second partition, the first partition and the second partition being mounted opposite to each other to form the inner housing.

Preferably, the outer shell comprises a first base and a second base, and the first base and the second base are relatively fixedly installed to form the outer shell.

The shell structure of the switch is characterized in that the shell body of the switch is also provided with the inner shell body for packaging the contact mechanism, and the inner shell body packages the fixed contact, the moving contact and the arc extinguishing chamber into the contact module and then is integrally installed in the shell body, so that the shell structure can be integrally used for different switch products, the design period and the production cost of the switch products are reduced, and the switch is convenient to assemble and replace.

In addition, the outside of inner shell still is equipped with first outside groove, can be used for installing permanent magnet and magnetic conduction board.

In addition, the inner housing is provided with a first inner housing aperture from which the contact support can protrude to increase its travel.

In addition, the shell body is provided with a first bulge which is positioned between the two power connection parts, the creepage distance between the two power connection parts is increased by the first bulge, and meanwhile, the movable space supported by the contact can be formed in the first bulge, so that the height of the switch is reduced, and the opening distance of the moving contact is guaranteed.

Drawings

FIG. 1 is a schematic diagram of an electromagnetic system;

FIG. 2 is a schematic view of the structure of the contact mechanism;

fig. 3 is a partial schematic view of a switching device according to the first embodiment;

fig. 4 is an exploded view of the switching device of the first embodiment, showing the inner housing located within the outer housing;

fig. 5 is an exploded view of the switching device of the first embodiment, showing the permanent magnet 18 and the magnetic conductive plate 17;

fig. 6 is an exploded view of the inner housing and contact mechanism of the first embodiment;

fig. 7 is a schematic view showing the overall structure of the inner housing of the first embodiment;

fig. 8 is a schematic diagram of the overall structure of a switching device according to the first embodiment;

fig. 9 is a schematic structural diagram of a switching device of the second embodiment.

The elements in the figures are numbered as follows:

the contact unit 1, the outer case 10, the first linking hole 101, the exhaust port 102, the power supply wiring part 103, the first protrusion 104, the second protrusion 105, the first cavity 108, the second cavity 109, the stationary contact 11, the first contact part 111, the first wiring part 113, the moving contact 12, the contact 120, the second contact part 121, the contact support 124, the chute 1244, the arc extinguishing chamber 14, the magnetic conductive plate 17, the first magnetic conductive plate 171, the second magnetic conductive plate 173, the connection plate 172, the permanent magnet 18, the first permanent magnet 18A, the second permanent magnet 18B, the electromagnetic unit 2, the second outer case 20, the electromagnetic coil 21, the stationary core 23, the moving core 22, the return spring 24, the link 25, the second moving hole 201, the first base 10A, the second base 10B, the first partition plate 30A, the second partition plate 30B, the contact support sliding space 301, the stationary contact space 302, the arc extinguishing chamber space 303, the first inner case hole 304, the second inner case hole 305, the third inner case hole 306, the guide structure 307, the first side wall 311, and the inner case fourth side wall 312.

Detailed Description

Specific embodiments of the switching device according to the utility model are further described below with reference to the examples given in the figures. The switching device of the present utility model is not limited to the description of the following embodiments.

Referring to fig. 1-2, a switching device includes a contact mechanism and an electromagnetic mechanism; the electromagnetic mechanism comprises an electromagnetic coil 21, a static iron core 23, a movable iron core 22 and a return spring 24, wherein the electromagnetic coil 21 is used for generating electromagnetic force to drive the movable iron core 22 to move and attract towards the static iron core 23, the return spring 24 acts on the movable iron core 22, when the electromagnetic coil 21 conducts electricity, the electromagnetic force is generated to drive the movable iron core 22 to move and attract towards the static iron core 23, the movable iron core 22 enables the return spring 24 to store energy, and when the electromagnetic coil 21 stops working, the return spring 24 pushes the movable iron core 22 to move and repel away from the static iron core 23. The contact mechanism comprises a moving contact 12 and two fixed contacts 11, the fixed contacts 11 are provided with first contact parts 111, the moving contact 12 comprises a contact 120 arranged on a contact support 124, two ends of the contact 120 are respectively provided with a second contact part 121, and the two second contact parts 121 are used for being matched with the two fixed contacts 11. The moving core 22 of the electromagnetic mechanism can drive the contact support 124 to move linearly, so that the two second contact parts 121 of the contact 120 are contacted with and separated from the first contact parts 111 of the two fixed contacts 11, the contact is used for switching on and off of the switching device, and the arc extinguishing chamber 14 is used for extinguishing an arc generated when the moving contact 12 and the fixed contact 11 are switched off. The two fixed contacts 11 are symmetrically arranged at two sides of the contact support 124, the two arc extinguishing chambers 14 are arranged at two sides of the moving contact 12, namely symmetrically arranged at two sides of the contact 120 and the contact support 124, and the two arc extinguishing chambers 14 are respectively arranged at two sides far away from the contact area of the moving contact 12 and the two fixed contacts 11 and symmetrically distributed.

As shown in fig. 3-8, a modification of the switch device of this embodiment is that, in the switch device housing structure, an inner housing 30 for mounting a contact mechanism is further provided in the switch device outer housing 10, a contact support sliding space 301 for mounting a contact support 124 is provided in the inner housing 30, two fixed contact spaces 302 for mounting a fixed contact 11, two arc extinguishing chamber spaces 303 for mounting an arc extinguishing chamber 14 are provided, the two fixed contact spaces 302 are symmetrically provided at both sides of the contact support sliding space 301, the two arc extinguishing chamber spaces 303 are symmetrically provided at both sides of the contact support sliding space 301, and a guide structure 307 in linear sliding fit with the contact support 124 is provided in the contact support sliding space 301; after the static contact 11, the moving contact 12 and the arc extinguishing chamber 14 are packaged into a contact module through the inner shell 30, the contact module is integrally installed in the outer shell 10, so that the contact module can be integrally used for different switch products, the design period and the production cost of the switch products are reduced, and the contact module is convenient to assemble and replace.

As shown in fig. 3 to 4, the outer case 10 of the present embodiment includes a first base 10A, a second base 10B, and the first base 10A and the second base 10B are installed opposite to each other to form the outer case 10. The inner housing 30 includes a first partition plate 30A and a second partition plate 30B, the first partition plate 30A and the second partition plate 30B are installed relatively to form the inner housing 30, the two stationary contacts 11, the moving contacts 12 and the two arc extinguishing chambers 14 are installed between the first partition plate 30A and the second partition plate 30B, a first installation space for setting a contact mechanism is formed between the first partition plate 30A and the second partition plate 30B, and the first installation space and the second installation space can be connected into an integral contact module by means of screws, rivets, buckles or the like, and then are integrally installed between the first base 10A and the second base 10B.

Preferably, referring to fig. 2 and 6, the contact supporting sliding space 301 is disposed in the middle of the inner case 30, two fixed contact spaces 302 are respectively disposed between the two arc extinguishing chamber spaces 303 and the contact supporting sliding space 301, one fixed contact space 302 is disposed between each arc extinguishing chamber space 303 and the contact supporting sliding space 301, and the fixed contact 11 is disposed between the corresponding arc extinguishing chamber 14 and the contact supporting 124, so that the overall structure is more compact and the arc is advantageously guided to the arc extinguishing chamber 14. Of course, as other embodiments, the stationary contact 11 may be disposed on the upper side or the lower side of the arc extinguishing chamber 14. A guide structure 307 in linear sliding engagement with the contact support 124 is provided in the contact support sliding space 301, and the guide structure 307 includes a guide groove and/or a guide rib, which is provided between the contact support 124 and the first partition 30A and/or the second partition 30B.

Preferably, as shown in fig. 3 and 6, the inner housing 30 is provided with a first inner housing hole 304 and a second inner housing hole 305 on two sidewalls perpendicular to the moving direction of the contact support 124, respectively, and the contact support 124 can extend from the first inner housing hole 304 to increase the moving stroke thereof to enlarge the opening distance between the moving contact and the static contact. Preferably, the linkage 25 for driving the movement of the contact support 124 is capable of being connected to the contact support 124 protruding from the first inner housing aperture 304; it is understood that, as an alternative embodiment, an inner housing opening may be provided in the side wall of the inner housing 30 parallel to the direction of movement of the contact support 124 for the linkage 25 to pass through to connect with the contact support 124, which is within the scope of the present utility model. Preferably, a first linkage hole 101 is provided in a sidewall of the outer housing 10, and the linkage member 25 for connecting with the contact support 124 is connected with the contact support 124 extended from the first inner housing hole 304 through extending into the outer housing 10 to move the contact support 124 linearly. A sliding groove 1244 is formed at the bottom of the contact support 124, and a second protrusion 105 is correspondingly formed in the outer shell 10, and the second protrusion 105 can extend from the second inner shell hole 305 to cooperate with the sliding groove 1244 of the contact support 124, so that the sliding guide of the contact support 124 and the function of isolating breakpoint arcs on two sides can be realized. Further, the first connection portion 113 of the stationary contact 11 also protrudes from the first inner housing hole 304 for connection.

Preferably, as shown in fig. 7, the inner case 30 is provided with a third inner case hole 306 on a side wall corresponding to the exhaust end of the arc extinguishing chamber 14 for exhausting arc gas from the arc extinguishing chamber 14. Preferably, a dimension of the inner case 30 corresponding to the exhaust end of the arc extinguishing chamber 14 is matched with a dimension of the exhaust end of the arc extinguishing chamber 14, and the inner case 30 is not provided with a sidewall corresponding to the exhaust end of the arc extinguishing chamber 14 as the third inner case hole 306.

Preferably, as shown in fig. 4-6, a permanent magnet 18 and a magnetically permeable plate 17 are provided between the inner housing 30 and the outer housing 10. The permanent magnet 18 is disposed outside the first separator 30A and the second separator 30B, and the magnetic conductive plate 17 is disposed outside the permanent magnet 18. A first outside groove 318 for mounting the permanent magnet 18 is provided on the outside of the inner housing 30. In the following

As shown in fig. 5-6, the switching device of the present embodiment includes two sets of permanent magnets 18 and two sets of magnetic conductive plates 17, the two sets of permanent magnets 18 are respectively disposed corresponding to the two stationary contacts 11 and the two arc extinguishing chambers 14, and a set of magnetic conductive plates 17 is disposed outside each set of permanent magnets 18. Each group of permanent magnets 18 comprises a first permanent magnet 18A and a second permanent magnet 18B which are arranged in parallel at intervals, and at least the arc extinguishing chamber 14, the first contact part 111 of the fixed contact 11 and the second contact part 121 of the moving contact 12 are arranged in the area between the first permanent magnet 18A and the second permanent magnet 18B. Preferably, the magnetic conductive plate 17 includes a first magnetic conductive plate 171, a second magnetic conductive plate 173, and a connection plate 172, where the first magnetic conductive plate 171 and the second magnetic conductive plate 17 are disposed in parallel, and the connection plate 172 is connected to the first magnetic conductive plate 17 and the second magnetic conductive plate 17, so that the magnetic conductive plate 17 is U-shaped. The first magnetic conductive plate 171 and the second magnetic conductive plate 173 are respectively and correspondingly arranged at the outer sides of the first permanent magnet 18A and the second permanent magnet 18B, the connecting plate 172 is arranged at the lower side of the arc extinguishing chamber 14, avoiding the exhaust end of the arc extinguishing chamber 14, and the connecting plate 172 is connected with the lower side edges of the first magnetic conductive plate 17 and the second magnetic conductive plate 17, which are close to the fixed contact 11, and is positioned at the outer side of the first arc striking part 114.

The inner case 30 of the present embodiment is provided with first outside grooves 318 on the outer sides of the first and second spacers 30A and 30B, and the first and second permanent magnets 18A and 18B are disposed in the first outside grooves 318 of the first and second spacers 30A and 30B, respectively. Preferably, the first outer groove 318 is used for mounting the magnetic conductive plate 17 at the same time. The first and second magnetic conductive plates 171 and 173 of the magnetic conductive plate 17 are also disposed in the first outer grooves 318 of the first and second separators 30A and 30B, and the connection plate 172 is disposed corresponding to the lower side of the arc extinguishing chamber 14.

Specifically, as shown in fig. 7, the inner housing 30 includes an inner housing first sidewall 311 and an inner housing second sidewall that are disposed at opposite intervals, and an inner housing third sidewall and an inner housing fourth sidewall 312 that are disposed at opposite intervals, wherein the inner housing third sidewall and the inner housing fourth sidewall 312 are both connected between the inner housing first sidewall 311 and the inner housing second sidewall, and the sliding direction of the contact support 124 is parallel to the inner housing first sidewall 311 and the inner housing second sidewall and perpendicular to the inner housing third sidewall and the inner housing fourth sidewall 312. The first inner housing sidewall 311, the second inner housing sidewall, the third inner housing sidewall and the fourth inner housing sidewall 312 enclose a space with openings on the left and right sides, the openings on the left and right sides are used as the third inner housing hole 306 for discharging arc gas from the arc extinguishing chamber 14, the first inner housing hole 304 is disposed on the third inner housing sidewall, and the second inner housing hole 305 is disposed on the fourth inner housing sidewall 312. The first partition plate 30A forms an inner housing first side wall 311, a half inner housing third side wall, and a half inner housing fourth side wall 312, the second partition plate 30B forms an inner housing second side wall, a half inner housing third side wall, and a half inner housing fourth side wall 312, and the first partition plate 30A and the second partition plate 30B are buckled to form the inner housing 30.

Specifically, as shown in fig. 3-4, the outer housing 10 has a rectangular parallelepiped structure, and includes a first upper sidewall and a first lower sidewall that are disposed opposite to each other at intervals, a first left sidewall and a first right sidewall that are disposed opposite to each other, and a first front sidewall and a first rear sidewall that are disposed opposite to each other. The first front side wall and/or the first rear side wall is provided with the first linkage hole 101 for the linkage 25 to pass through and connect to the contact support 124 of the moving contact 12. The first left side wall and the first right side wall of the outer casing 10 are further provided with an exhaust port 102, and the exhaust port 102 corresponds to an exhaust end of the arc extinguishing chamber 14 and is used for exhausting arc gas; the air inlet end of the arc extinguishing chamber 14 faces the fixed contact 11. The first upper side wall and the first lower side wall are arranged at the height of the outer shell 10, the first left side wall and the first right side wall are arranged at the length of the outer shell 10, the first front side wall and the first rear side wall are arranged at the width of the outer shell 10, and the distance between the first front side wall and the first rear side wall is smaller than the distance between the first left side wall and the first right side wall and smaller than the distance between the first upper side wall and the first lower side wall.

Preferably, the first upper side wall of the outer housing 10 is provided with two power connection parts 103 for connecting conductors so as to connect an external power source and a load, and facilitate connection of the assembled switchgear. Of course, as other embodiments, the power supply wiring portion 103 may be provided on other side walls. The two power supply wiring parts 103 are electrically connected with the two fixed contacts 11; preferably, the fixed contact 11 is integrally formed with the power connection part 103, and the first connection part 113 of the fixed contact 11 extends out of the inner housing 30 and the outer housing 10 to serve as the power connection part 103; of course, the stationary contact 11 may be provided separately from the power supply connection portion 103. The moving direction of the contact support 124 is perpendicular to the first upper side wall and the first lower side wall, a first protrusion 104 is arranged on the first upper side wall corresponding to the position of the moving direction of the contact support 124, the first protrusion 104 is located between the two power wiring parts 103, the first protrusion 104 not only increases the creepage distance between the two power wiring parts 103, but also can form a movable space of the contact support 124 in the first protrusion 104, which is beneficial to reducing the height of the switch and ensuring the opening distance of the movable contact and the static contact. The first protrusion 104 is disposed corresponding to the movement track of the contact support 124, and the contact support 124 can move to the movable space inside the first protrusion 104.

As shown in fig. 8, an applied embodiment of a housing structure of the switch, the switching device of the present embodiment includes an electromagnetic unit 2 and at least one contact unit 1 arranged side by side, the electromagnetic unit 2 including a second housing outer case 20, and an electromagnetic coil 21, a stationary core 23, a moving core 22, and a return spring 24 arranged in the second housing outer case 20; the contact unit 1 comprises an outer housing 10 and a contact module according to the utility model arranged in the outer housing 10, which comprises an inner housing 30, two stationary contacts 11, a moving contact 12 and two arc-extinguishing chambers 14 arranged in the inner housing 30. The side wall of the outer housing 10 is provided with a first linkage hole 101, the side wall of the outer housing 20, which is close to the outer housing 10, is correspondingly provided with a second linkage hole 201, the contact support 124 extends out of a first inner housing hole 304 of the inner housing 30, and the linkage member 25 passes through the first linkage hole 101 and the second linkage hole 201 to connect the moving core 22 with the contact support 124 of the moving contact 12. The first linkage hole 101 and the second linkage hole 201 are elongated, the linkage member 25 is disposed along a direction perpendicular to the moving direction of the contact support 124, the linkage member 25 can move linearly in the first linkage hole 101 and the second linkage hole 201, and the length direction of the first linkage hole 101 and the second linkage hole 201 is parallel to the moving direction of the contact support 124.

As shown in fig. 9, in another embodiment of a case structure of a switch, the switch device of the embodiment includes an outer case 10, the outer case 10 is divided into a first cavity 108 and a second cavity 109 which are arranged up and down, and an electromagnetic coil 21, a stationary core 23, a moving core 22 and a return spring 24 of an electromagnetic system are disposed in the first cavity 108; the second cavity 109 is provided with a contact module (not shown in the figure) according to the utility model, which comprises an inner housing 30, two stationary contacts 11, a moving contact 12 and two arc extinguishing chambers 14 arranged in the inner housing 30. The direction from the first cavity 108 to the second cavity 109 is parallel to the moving direction of the contact support 124, a via hole is provided between the first cavity 108 and the second cavity 109, the linkage 25 is provided along the moving direction parallel to the contact support 124, and the moving core 22 is connected with the contact support 124 of the moving contact 12 through the via hole.

As another application example of the housing structure of the other switch, an outer housing 10 may be further included, in which an electromagnetic system and a plurality of contact modules of the present utility model, etc., are provided in the outer housing 10.

It should be noted that, in the description of the present utility model, the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate an orientation or a positional relationship based on that shown in the drawings or an orientation or a positional relationship conventionally put in use, and are merely for convenience of description, and do not indicate that the apparatus or element to be referred to must have a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating relative importance.

The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.

Claims (17)

1. A housing structure of a switch, comprising an outer housing (10), characterized in that: the contact support sliding space (301) for installing the contact support (124) is arranged in the inner shell (30), two static contact spaces (302) for installing the static contact (11) are arranged in the inner shell (30), two arc-extinguishing chamber spaces (303) for installing the arc-extinguishing chamber (14) are symmetrically arranged on two sides of the contact support sliding space (301), two arc-extinguishing chamber spaces (303) are symmetrically arranged on two sides of the contact support sliding space (301), and guide structures (307) in linear sliding fit with the contact support (124) are arranged in the contact support sliding space (301).

2. The switch housing structure of claim 1, wherein: the two static contact spaces (302) are respectively arranged between the two arc-extinguishing chamber spaces (303) and the contact supporting sliding space (301), and one static contact space (302) is arranged between each arc-extinguishing chamber space (303) and the contact supporting sliding space (301).

3. The switch housing structure of claim 1, wherein: a permanent magnet (18) and a magnetic conductive plate (17) are arranged between the inner shell (30) and the outer shell (10).

4. The switch housing structure of claim 1, wherein: the inner housing (30) is provided with a first inner housing hole (304), and the contact support (124) can extend from the first inner housing hole (304) to increase the moving stroke thereof.

5. The switch housing structure of claim 4, wherein: a first linkage hole (101) is formed in the side wall of the outer shell (10), and a linkage piece (25) used for being connected with the contact support (124) penetrates through the first linkage hole to drive the contact support (124) to linearly move.

6. A switch housing structure according to claim 3, wherein: a first outer groove (318) for mounting the permanent magnet (18) is provided on the outer side of the inner case (30).

7. The switch housing structure of claim 6, wherein: the first outside groove (318) is used for installing the magnetic conduction plate (17) at the same time.

8. The switch housing structure of claim 4, wherein: the inner shell (30) comprises an inner shell first side wall (311) and an inner shell second side wall which are arranged at intervals relatively, an inner shell third side wall and an inner shell fourth side wall (312) which are arranged at intervals relatively, the inner shell third side wall and the inner shell fourth side wall (312) are connected between the inner shell first side wall (311) and the inner shell second side wall, the inner shell first side wall (311), the inner shell second side wall, the inner shell third side wall and the inner shell fourth side wall (312) enclose a space with openings on the left side and the right side, the sliding direction of the contact support (124) is parallel to the inner shell first side wall (311) and the inner shell second side wall, the contact support is perpendicular to the inner shell third side wall and the inner shell fourth side wall (312), and the inner shell third side wall is provided with the first inner shell hole (304).

9. The switch housing structure of claim 8, wherein: a second inner shell hole (305) is formed in the fourth side wall (312) of the inner shell, a second protrusion (105) is arranged in the outer shell (10), and the second protrusion (105) can extend into the second inner shell hole (305) to be matched with the contact support (124).

10. The switch housing structure of claim 1, wherein: the outer shell (10) is of a cuboid structure and comprises a first upper side wall, a first lower side wall, a first left side wall, a first right side wall, a first front side wall and a first rear side wall, wherein the first upper side wall and the first lower side wall are oppositely arranged at intervals; the first upper side wall and the first lower side wall are perpendicular to a sliding direction of the contact support (124).

11. The switch housing structure of claim 10, wherein: the first front side wall and/or the first rear side wall are/is provided with a first linkage hole (101), the first linkage hole (101) is long and strip-shaped, and the length direction of the first linkage hole (101) is parallel to the moving direction of the contact support (124).

12. The switch housing structure of claim 10, wherein: the first upper side wall is provided with two power supply wiring parts (103).

13. The switch housing structure of claim 12, wherein: a first protrusion (104) is arranged on the first upper side wall of the outer shell (10) at a position corresponding to the moving direction of the contact support (124), and the first protrusion (104) is positioned between the two power connection parts (103).

14. The switch housing structure of claim 13, wherein: the first protrusion (104) is arranged corresponding to the moving track of the contact support (124), and the contact support (124) can move into the first protrusion (104).

15. The switch housing structure of claim 10, wherein: and exhaust ports (102) are formed in the first left side wall and the first right side wall.

16. The housing structure of a switch according to any one of claims 1-15, wherein: the inner shell (30) comprises a first partition plate (30A) and a second partition plate (30B), and the first partition plate (30A) and the second partition plate (30B) are oppositely installed to form the inner shell (30).

17. The housing structure of a switch according to any one of claims 1-15, wherein: the outer shell (10) comprises a first base (10A) and a second base (10B), and the first base (10A) and the second base (10B) are relatively and fixedly installed to form the outer shell (10).