Key switch and vehicle

Abstract

The utility model provides a button switch and a vehicle, the button switch comprises a button, a pedestal, a housing and a switch, the pedestal comprises a main body part and a step part, the step part is connected to the outer surface of the main body part, the step part surrounds the main body part, the housing is sleeved outside the pedestal, the button is hermetically connected with the housing, at least one part of the button is exposed outside the housing, and the switch is arranged on the pedestal. The step part is welded with the shell to realize sealing between the base and the shell, the key and the main body part jointly define a cavity, the switch is arranged in the cavity, and the key is used for triggering the switch. According to the key switch, sealing between the base and the shell is achieved through welding of the step part and the shell, and the key switch has a good waterproof effect.

Description

Technical Field

[0001] The utility model relates to the technical field of key switches, in particular to a key switch and a vehicle. Background Art

[0002] As the intelligence of automobiles gradually increases, the number of key switches equipped on automobiles is also gradually increasing. The tailgate (trunk door) of some automobiles is equipped with a key switch. The user can start the driving mechanism for driving the tailgate by pressing the button, so that the tailgate is opened or closed. Since part of the key switch is exposed, the key switch needs to have good waterproof ability to prevent the key switch from becoming ineffective due to water ingress. In the prior art, the base and the shell of the key switch are usually sealed by a sealing ring. However, after the key switch has been used for a long time, the sealing ring between the base and the shell will age, and the waterproof effect of the key switch needs to be further improved. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a key switch with good waterproof effect.

[0004] The utility model also provides a vehicle comprising the key switch.

[0005] According to the first aspect of the present invention, the key switch of the embodiment includes: a key; a base, the base includes a main body and a step portion, the step portion is connected to the outer surface of the main body, and the step portion surrounds the main body; a shell, the shell is sleeved on the outside of the base, the key is sealed and connected to the shell, at least a part of the key is exposed outside the shell, the step portion is welded to the shell to achieve sealing between the base and the shell, the key, the main body and the shell jointly define a chamber, or the key and the main body jointly define a chamber; a switch, the switch is arranged in the chamber, and the key is used to trigger the switch.

[0006] The key switch according to the embodiment of the first aspect of the utility model has at least the following beneficial effects: the protruding step portion facilitates the welding of the housing and the base. The connection at the welding point between the step portion and the housing is highly secure and is not easily damaged over a long period of time (relative to the sealing ring). Therefore, the key switch of this embodiment has a better waterproof effect. Moreover, since the step portion is welded to the housing, the tortuosity of the gap near the welding point is high, and it is more difficult for external water to flow to the welding point, which is also conducive to improving the waterproof effect of the key switch. In addition, the present embodiment welds the step portion to the housing instead of directly welding through the main body, and the shape of the main body does not need to be significantly changed relative to the prior art, which is conducive to reducing the design and manufacturing costs of the key switch.

[0007] According to some embodiments of the utility model, the main body includes a first section and a second section that are connected to each other, the first section and the second section are distributed along the axial direction of the main body, the outer diameter of the first section is larger than the outer diameter of the second section, the first section includes a first end face, the first end face is located at one end of the first section close to the second section, and the outer circumferential surface of the first end face and the second section are both connected to the step portion.

[0008] According to some embodiments of the present invention, the base includes a plurality of step portions, and the plurality of step portions are distributed at intervals along the axial direction of the main body.

[0009] According to some embodiments of the utility model, there are two step portions, which are respectively a first step portion and a second step portion, the main body portion includes a first section, a second section and a third section distributed along the axial direction, the first section and the third section are respectively connected to the two ends of the second section, the outer diameter of the first section is greater than the outer diameter of the second section, and the outer diameter of the second section is greater than the outer diameter of the third section; the first section includes a first end face, the first end face is located at one end of the first section close to the second section, and the first end face and the outer peripheral surface of the second section are both connected to the first step portion; the second section includes a second end face, the second end face is located at one end of the second section close to the third section, and the second end face and the outer peripheral surface of the third section are both connected to the second step portion.

[0010] According to some embodiments of the utility model, the push switch also includes a main sealing ring, which is elastic, and is sleeved on the outside of the main body and surrounds the main body. The outer shell abuts against the main sealing ring, and the main sealing ring and the step portion are spaced apart along the axial direction of the main body.

[0011] According to some embodiments of the utility model, the two ends of the shell are respectively a first sealing end and a second sealing end, the button is sealed and connected to the first sealing end, and the main sealing ring and the step portion satisfy: the step portion is welded to the second sealing end, and the main sealing ring is located between the first sealing end and the second sealing end; or, the main sealing ring is abutted against the second sealing end, and the step portion is located between the first sealing end and the second sealing end.

[0012] According to some embodiments of the utility model, the button includes: a pressing part, at least a part of which is exposed outside the shell; a connecting part, both ends of which are sealed and connected to the shell and the pressing part respectively, and the connecting part is elastic, and the elastic force of the connecting part can drive the pressing part to move in a direction away from the switch; a triggering part, the triggering part is connected to the pressing part, the triggering part is located in the chamber, and the triggering part can abut against the switch to trigger the switch.

[0013] According to some embodiments of the utility model, the base includes an interference rib, which is annular in shape, connected to an end surface of the main body portion close to the button, and the connecting portion abuts against the interference rib.

[0014] According to some embodiments of the utility model, the connecting portion is provided with an annular first clamping groove, the outer shell includes an annular first clamping rib, the first clamping rib is arranged in the first clamping groove and clamped with the first clamping groove; and / or, the pressing portion is provided with an annular second clamping groove, the connecting portion includes a second clamping rib, the second clamping rib is arranged in the second clamping groove and clamped with the second clamping groove.

[0015] The vehicle according to the second embodiment of the utility model comprises the key switch described in the first embodiment.

[0016] The beneficial effects of the vehicle according to the embodiment of the second aspect of the utility model are the same as the beneficial effects of the key switch of the embodiment of the first aspect, which will not be repeated here.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 A schematic diagram of a key switch according to an embodiment of the utility model;

[0020] Figure 2 for Figure 1 Exploded view of the push button switch shown (wires omitted);

[0021] Figure 3 for Figure 2 a cross-sectional view of the base shown;

[0022] Figure 4 for Figure 1 A cross-sectional view of the key switch;

[0023] Figure 5 for Figure 4 A magnified image of area A;

[0024] Figure 6 for Figure 4 Magnified view of area B.

[0025] Reference numerals:

[0026] 100-button switch, 101-button, 102-housing, 103-wire, 104-base, 105-main body, 106-first section, 107-second section, 108-third section, 109-step portion, 110-interference rib, 111-trigger portion, 112-pressing portion, 113-connecting portion, 114-chamber, 115-first end surface, 116-first outer peripheral surface, 117-first clamping rib, 118-first clamping groove, 119-second clamping rib, 120-second clamping groove, 121-upper end surface, 122-first step portion, 123-second step portion. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present utility model, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0031] Figure 1 FIG. 1 shows a key switch 100 according to an embodiment of the present utility model. Figure 2 for Figure 1 The exploded view of the key switch 100 is shown in FIG. The key switch 100 includes a key 101, a base 104, and a housing 102. At least a portion of the key 101 is exposed outside the housing 102 so that the user can press the key 101. Figure 3 As shown, the base 104 includes a main body 105 and a step portion 109. The main body 105 is cylindrical and hollow inside. The step portion 109 is connected to the outer surface of the main body 105 and surrounds the main body 105 (the step portion 109 surrounds the main body 105). Figure 4 As shown, the housing 102 is sleeved on the outside of the base 104, the button 101 is sealed and connected to the housing 102, and the step portion 109 is welded to the housing 102 to achieve the sealing between the base 104 and the housing 102. Since the step portion 109 is annular, the weld formed by welding the step portion 109 and the housing 102 is also annular. The step portion 109 and the housing 102 can be welded by an ultrasonic welding process. The button 101 and the main body 105 together define a chamber 114. The "outer surface" of the main body 105 refers to those surfaces facing away from the chamber 114. "The button 101 is sealed and connected to the housing 102" means that the connection between the two can prevent water or other liquids from entering the chamber 114 from the connection. The sealing method between the button 101 and the housing 102 will be described below. Similarly, the sealing between the base 104 and the housing 102 means that water or air pressure liquid cannot enter the chamber 114 from the gap between the base 104 and the housing 102. In this embodiment, the space enclosed by the button 101 and the main body 105 is the chamber 114, and the surface of the housing 102 does not directly serve as a part of the wall of the chamber 114. In other embodiments, the chamber 114 may also be defined by the button 101, the main body 105 and the housing 102, and the surface of the housing 102 may also serve as a part of the wall of the chamber 114.

[0032] The key switch 100 also includes a circuit board and a wire 103, and the circuit board includes a switch. The circuit board and the switch are not shown in the accompanying drawings. The circuit board is arranged in the chamber 114, and the circuit board can be connected to the base 104 by screws. Correspondingly, the switch is also located in the chamber 114. The circuit board is electrically connected to the wire 103. The key 101 is used to trigger the switch. After the switch is triggered, the key switch 100 can output a signal to the outside through its wire 103. The bottom of the base 104 is provided with an avoidance hole through which the wire 103 can pass. In order to prevent water from entering the key switch 100, a sealing ring (not shown) can be provided between the hole wall of the avoidance hole and the wire 103. If water enters the chamber 114, the water may cause the circuit board to short-circuit, thereby causing the key switch 100 to malfunction. Therefore, the "waterproof" of the present utility model mainly refers to preventing water from entering the chamber 114.

[0033] The key switch 100 of this embodiment is equivalent to replacing the main sealing ring on the outside of the main body 105 in the prior art with a step portion 109 that can be used for welding. The connection between the step portion 109 and the housing 102 is highly secure and is not easily damaged over a long period of time (compared to the sealing ring). Therefore, the key switch 100 of this embodiment has a better waterproof effect. Moreover, since the step portion 109 is welded to the housing 102, the tortuosity of the gap near the welding point is high, and it is more difficult for external water to flow to the welding point, which is also conducive to improving the waterproof effect of the key switch 100. In addition, in this embodiment, the step portion 109 is welded to the housing 102 instead of the main body 105, and the shape of the main body 105 does not need to be significantly changed, which is conducive to reducing the design and manufacturing costs of the key switch 100.

[0034] like Figure 3 As shown, in some embodiments, the base 104 may include a plurality of step portions 109, and the plurality of step portions 109 are spaced apart along the axial direction of the main body 105. Figure 3 For example, the axial direction of the main body 105 is the vertical direction. Since each step portion 109 is welded to the housing 102 , providing a plurality of step portions 109 is beneficial to further improve the sealing performance between the housing 102 and the base 104 . Figure 3 In the illustrated embodiment, the number of the step portions 109 is two. In other embodiments not shown, the number of the step portions 109 may be greater than two.

[0035] In other embodiments, in order to reduce the cost of the key switch 100, the base 104 may include only one step portion 109. For example, Figure 3 The two step portions 109 in the embodiment are respectively a first step portion 122 and a second step portion 123 ; in other embodiments, the base 104 may be provided with only the first step portion 122 or only the second step portion 123 .

[0036] In some embodiments not shown, the key switch 100 further includes a main sealing ring (not shown). The main sealing ring is elastic and is sleeved on the outside of the main body 105. The main sealing ring surrounds the main body 105 (around one circle). The inner surface of the housing 102 abuts against the main sealing ring, and the main sealing ring and the step portion 109 are spaced apart along the axial direction of the main body 105. For example, Figure 3 The first step portion 122 or the second step portion 123 in the embodiment is replaced by the main sealing ring, thereby obtaining a key switch 100 with a main sealing ring. In this arrangement, two sealing structures are provided between the housing 102 and the base 104, one of which is the main sealing ring, and the other is the weld formed by welding the step portion 109 and the housing 102. Even if one of the sealing structures fails first, the other sealing structure can still play a sealing role. Compared with the prior art that only provides one sealing ring to seal the housing 102 and the base 104, this embodiment is provided with both a sealing ring and a weld, and the key switch 100 of this embodiment has a better waterproof effect.

[0037] When a main sealing ring is provided, the position of the main sealing ring can be flexibly adjusted according to demand.

[0038] For example, in some embodiments, the two ends of the housing 102 are respectively a first sealed end and a second sealed end, the button 101 is sealedly connected to the first sealed end, the step portion 109 (first step portion 122) is welded to the second sealed end, and the main sealing ring is located between the first sealed end and the second sealed end. Figure 4 For example, the first sealed end is the top of the housing 102, and the second sealed end is the bottom of the housing 102. Figure 4 The second step 123 in the housing 102 is replaced by the main sealing ring. Compared with the main sealing ring, the step 109 is closer to the bottom opening of the housing 102, and the step 109 is more convenient to weld with the housing 102. In addition, the main sealing ring is located at a more inner position, the main sealing ring is not easy to contact with the outside air, and the main sealing ring ages slowly.

[0039] For example, in some other embodiments, the second sealing end may abut against the main sealing ring, and the step portion 109 (second step portion 123) is located between the first sealing end and the second sealing end. Figure 4 The first step portion 122 in the embodiment is replaced by a main sealing ring. The main sealing ring is closer to the bottom opening of the housing 102 than the step portion 109, and the assembly of the main sealing ring is more convenient.

[0040] like Figure 3As shown, in some embodiments, the main body 105 includes a first section 106 and a second section 107 connected to each other, and the first section 106 and the second section 107 are distributed along the axial direction of the main body 105. The outer diameter of the first section 106 is greater than the outer diameter of the second section 107, so that the outer surface of the main body 105 is also stepped, which is conducive to achieving axial positioning between the base 104 and the housing 102. Figure 5 As shown, the first section 106 includes a first end surface 115, and the first end surface 115 is located at one end of the first section 106 close to the second section 107. For example, the first end surface 115 is the top surface of the first section 106. The outer peripheral surface of the second section 107 is the first outer peripheral surface 116, and the first end surface 115 and the first outer peripheral surface 116 are both connected to the step portion 109.

[0041] In other embodiments, in order to simplify the structure of the base 104, it is not necessary to additionally provide a raised step portion 109 on the first end surface 115. Figure 3 To adjust the base 104 as a basis, you can remove Figure 3 The step portion 109 in the embodiment is directly used as the step portion 109, and the portion of the first section 106 protruding relative to the first outer peripheral surface 116 is directly used as the step portion 109. The main body 105 of the adjusted scheme is equivalent to including Figure 3 The portion of the first section 106 that does not protrude relative to the first outer peripheral surface 116 and Figure 3 The second section 107 in the adjusted solution is the step portion 109. Figure 3 The portion of the first section 106 that protrudes relative to the first outer peripheral surface 116.

[0042] Relatively speaking, for Figure 3 The base 104 shown has a step portion 109 disposed at the junction of the first section 106 and the second section 107, which helps to further increase the tortuosity of the gap near the step portion 109, making it more difficult for external water to flow to the welding point of the step portion 109, and the push switch 100 has a better waterproof effect.

[0043] Similarly, if Figure 3As shown, in the case where the base 104 includes two step portions 109, the main body 105 may further include a third section 108. The first section 106, the second section 107 and the third section 108 are distributed along the axial direction of the main body 105, and the first section 106 and the third section 108 are respectively connected to the two ends of the second section 107, and the outer diameter of the second section 107 is greater than the outer diameter of the third section 108. The first end face 115 and the outer circumference of the second section 107 are connected to the first step portion 122. The second section 107 includes a second end face, and the second end face is located at one end of the second section 107 close to the third section 108. The second end face may be the top surface of the second section 107. The second end face and the outer circumference of the third section 108 are both connected to the second step portion 123. In this arrangement, the first step portion 122 is arranged at the intersection of the first section 106 and the second section 107, and the second step portion 123 is arranged at the intersection of the second section 107 and the third section 108. The tortuosity of the gap near the step portion 109 is relatively high, and it is difficult for external water to flow to the welding point of the step portion 109. The waterproof effect of the push switch 100 is better.

[0044] The structure of the button 101 and the sealing connection between the button 101 and the housing 102 are described below.

[0045] like Figure 4 As shown, the button 101 includes a pressing portion 112, a connecting portion 113 and a triggering portion 111. The pressing portion 112 and the connecting portion 113 are exposed outside the housing 102, and the triggering portion 111 is located in the chamber 114. The pressing portion 112 is the portion of the button 101 that directly contacts the user's finger. The connecting portion 113 is truncated cone-shaped, and the connecting portion 113 is elastic. The elastic force of the connecting portion 113 can drive the pressing portion 112 to move in a direction away from the switch, thereby resetting the pressing portion 112. The triggering portion 111 is connected to the pressing portion 112, and the triggering portion 111 can abut against the switch to trigger the switch (the switch is a contact switch). More specifically, if Figure 4 The position of the trigger part 111 is the initial position, so when the pressing part 112 is pressed by the user, the trigger part 111 moves downward to the trigger position. For the trigger part 111 at the trigger position, the bottom end of the trigger part 111 abuts against the switch to trigger the switch. After the user releases the pressing part 112, the elastic force of the connecting part 113 drives the pressing part 112 to move upward, so that the pressing part 112 returns to the initial position. In other embodiments, the switch can also be set as a non-contact switch such as a Hall switch or a photoelectric switch. The trigger part 111 does not need to contact the switch. The trigger part 111 only needs to move to the sensing area of ​​the switch to trigger the switch.

[0046] In some embodiments, the pressing portion 112, the connecting portion 113 and the triggering portion 111 may be integrally formed, for example, they are integrally formed by an injection molding process. In addition, since the connecting portion 113 needs to be elastic, the pressing portion 112 and the connecting portion 113 may be made of different materials (the hardness of the pressing portion 112 may be higher than the hardness of the connecting portion 113), and the button 101 may be made by a two-color injection molding process.

[0047] like Figure 6 As shown, in some embodiments, the connecting portion 113 is provided with an annular first clamping groove 118, the housing 102 includes an annular first clamping rib 117, the first clamping rib 117 is arranged in the first clamping groove 118, and the first clamping rib 117 is clamped with the first clamping groove 118. This arrangement can prevent water from the external environment from entering the chamber 114 through the gap between the connecting portion 113 and the housing 102, so that the key switch 100 has a good waterproof effect. Similarly, in some embodiments, the pressing portion 112 is provided with an annular second clamping groove 120, the connecting portion 113 includes a second clamping rib 119, the second clamping rib 119 is arranged in the second clamping groove 120, and the second clamping rib 119 is clamped with the second clamping groove 120. This arrangement can prevent water from the external environment from entering the chamber 114 through the gap between the pressing portion 112 and the connecting portion 113, so that the key switch 100 has a good waterproof effect. In other embodiments, the sealing between the connecting portion 113 and the pressing portion 112 may be achieved by a sealing ring, and the sealing between the connecting portion 113 and the housing 102 may also be achieved by a sealing ring.

[0048] like Figure 6 As shown, in some embodiments, the base 104 further includes an interference rib 110, which is annular and connected to the end surface of the main body 105 close to the button 101. Figure 6 As shown in FIG. 1 , “the end of the main body 105 close to the button 101” is the top of the main body 105, that is, the top of the third section 108; “the end surface of the end of the main body 105 close to the button 101” is the top surface of the third section 108, that is, Figure 6 The upper end surface 121 of the key switch 100 is formed by the connecting portion 113 abutting against the interference rib 110, thereby preventing water from entering the cavity 114 from the gap between the connecting portion 113 and the main body 105, thereby improving the waterproof effect of the key switch 100.

[0049] The utility model also provides a vehicle, which includes the key switch 100 in any of the above embodiments. The vehicle can be a private car, such as a sedan, SUV, MPV or pickup truck. The vehicle can also be an operating vehicle, such as a van, bus, small truck or large trailer. The vehicle can be a gasoline vehicle or a new energy vehicle. When the vehicle is a new energy vehicle, it can be a hybrid vehicle or a pure electric vehicle.

[0050] The key switch 100 can be used at the tailgate of a vehicle, and the pressing portion 112 of the key 101 is exposed outside the tailgate so that the user can press the key 101. After the key 101 of the key switch 100 is pressed, the tailgate of the vehicle opens. The key switch 100 can be installed on the sheet metal or plastic part of the tailgate, and can also be installed on the lampshade of the taillight of the tailgate. In addition, the key switch 100 can also be installed in other parts of the vehicle. For example, the key switch 100 can be installed at the cockpit door, and the key switch 100 is used to open the cockpit door. For another example, the key switch 100 can be installed in the cockpit, and the key switch 100 is used to turn on certain electronic devices of the vehicle.

[0051] In the description of the utility model, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A push button switch, characterized in that: include: button; A base, the base comprising a main body and a step portion, the step portion is connected to an outer surface of the main body, and the step portion surrounds the main body; a shell, wherein the shell is sleeved on the outside of the base, the button is sealed and connected to the shell, at least a portion of the button is exposed outside the shell, the step portion is welded to the shell to achieve sealing between the base and the shell, and the button, the main body and the shell jointly define a chamber, or the button and the main body jointly define a chamber; A switch is arranged in the chamber, and the button is used to trigger the switch.

2. The key switch according to claim 1, characterized in that: The main body portion includes a first section and a second section that are connected to each other, the first section and the second section are distributed along the axial direction of the main body portion, the outer diameter of the first section is greater than the outer diameter of the second section, the first section includes a first end face, the first end face is located at one end of the first section close to the second section, and the outer circumferential surface of the first end face and the second section are both connected to the step portion.

3. The key switch according to claim 1, characterized in that: The base includes a plurality of step portions, and the plurality of step portions are spaced apart and distributed along the axial direction of the main body.

4. The key switch according to claim 3, characterized in that: There are two step portions, the two step portions are respectively a first step portion and a second step portion, the main body portion comprises a first section, a second section and a third section distributed along the axial direction, the first section and the third section are respectively connected to two ends of the second section, the outer diameter of the first section is greater than the outer diameter of the second section, and the outer diameter of the second section is greater than the outer diameter of the third section; The first section includes a first end surface, the first end surface is located at one end of the first section close to the second section, and the first end surface and the outer peripheral surface of the second section are both connected to the first step portion; The second section includes a second end surface, the second end surface is located at one end of the second section close to the third section, and the second end surface and the outer peripheral surface of the third section are both connected to the second step portion.

5. The key switch according to claim 1, characterized in that: The key switch also includes a main sealing ring, which is elastic and sleeved on the outside of the main body and surrounds the main body. The shell abuts against the main sealing ring, and the main sealing ring and the step portion are spaced apart along the axial direction of the main body.

6. The key switch according to claim 5, characterized in that: The two ends of the housing are respectively a first sealing end and a second sealing end, the button is sealed and connected to the first sealing end, and the main sealing ring and the step portion meet the following requirements: The step portion is welded to the second sealing end, and the main sealing ring is located between the first sealing end and the second sealing end; or, the main sealing ring is abutted against the second sealing end, and the step portion is located between the first sealing end and the second sealing end.

7. The key switch according to claim 1, characterized in that: The buttons include: A pressing portion, at least a portion of which is exposed outside the housing; A connecting part, two ends of which are respectively sealed and connected to the housing and the pressing part, the connecting part is elastic, and the elastic force of the connecting part can drive the pressing part to move in a direction away from the switch; A triggering part is connected to the pressing part, the triggering part is located in the chamber, and the triggering part can abut against the switch to trigger the switch.

8. The key switch according to claim 7, characterized in that: The base includes an interference rib, which is annular in shape. The interference rib is connected to an end surface of the main body portion close to the button, and the connecting portion abuts against the interference rib.

9. The key switch according to claim 7, characterized in that: The connecting portion is provided with an annular first clamping groove, and the housing includes an annular first clamping rib, the first clamping rib is arranged in the first clamping groove and clamped with the first clamping groove; and / or, The pressing portion is provided with an annular second clamping groove, and the connecting portion includes a second clamping rib, which is arranged in the second clamping groove and clamped with the second clamping groove.

10. A vehicle, characterized in that The invention comprises the key switch according to any one of claims 1 to 9.

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