Switching device
By introducing a sliding part into the switch device to swing the movable contact part, contacting or separating it from the fixed contact part, the wear problem caused by the increase in the movement amount of the movable contact part is solved, and the contact reliability is improved and the device is miniaturized.
Patent Information
- Application Number
- CN202210328659.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2021-04-12
- Filing Date
- 2022-03-30
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2042-03-30
AI Technical Summary
In the conventional switching device, an increase in the movement amount of the movable contact portion leads to an increase in the wear amount of the fixed contact portion, which in turn affects contact reliability.
A switching device is designed in which the pressed member has a sliding portion that slides in a direction intersecting with the moving direction. The movable contact portion is swung by sliding the sliding portion, contacting or separating the fixed contact portion, and reducing the amount of movement of the movable contact portion to suppress wear.
The contact reliability between the movable contact portion and the fixed contact portion is effectively suppressed, the durability and reliability of the device are improved, and it helps to miniaturize and reduce manufacturing costs.
Smart Images

Figure CN115206714B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a switching device, and particularly to a push-button type switching device. Background Art
[0002] As a switching device, there is known a switching device provided with: a pressed-in member which moves from a reference position to a pressed-in position side in a specified moving direction when pressed from the outside, and returns from the pressed-in position to the reference position when released from the pressing; a plurality of fixed contact portions; and a movable contact portion which switches the conduction state between the plurality of fixed contact portions. The movable contact portion of this switching device is linked to the movement of the pressed-in member and contacts / separates from the fixed contact portion (for example, Patent Document 1).
[0003] Prior Art Documents
[0004] Patent Documents
[0005] Patent Document 1: Japanese Utility Model Registration No. 3169859 Summary of the Invention
[0006] Technical Problem to be Solved by the Invention
[0007] In the switching device of the above Patent Document 1, since the movable contact portion is attached to the pressed-in member, the movement amount of the movable contact portion is necessarily the same as the movement amount of the pressed-in member. Therefore, when attempting to ensure robustness against the positional difference of the peripheral accessories that operate the switching device and ensuring a long stroke of the pressed-in member, the movement amount of the movable contact portion also necessarily increases. When the movement amount of the movable contact portion increases, the sliding distance of the movable contact portion sliding on the fixed contact portion becomes longer. Therefore, there are problems such as an increase in the wear amount of the fixed contact portion and a decrease in the contact reliability between the movable contact portion and the fixed contact portion.
[0008] The present invention is proposed to solve the above existing problems, and aims to provide a switching device capable of suppressing a decrease in the contact reliability between the movable contact portion and the fixed contact portion.
[0009] Technical Solution for Solving the Technical Problem
[0010] To achieve the above object, the switch device described in the present application has: a pressed-in member that moves from a reference position to the pressed-in position side in a specified moving direction when pressed from the outside and returns to the reference position when released from the pressing; a biasing member that biases the pressed-in member toward the reference position; a plurality of fixed contact portions; and at least one movable contact portion that is swingably provided in a direction intersecting the moving direction of the pressed-in member and switches the conduction state with the plurality of fixed contact portions. The switch device is characterized in that the pressed-in member has a sliding portion formed in a direction obliquely intersecting the moving direction and on which the movable contact portion can slide. When the pressed-in member moves from the reference position to the pressed-in position side, the movable contact portion is pressed by the sliding of the sliding portion of the pressed-in member, whereby the movable contact portion swings and contacts / separates from at least one of the plurality of fixed contact portions.
[0011] In addition, based on the switch device, the sliding portion may also include a plurality of inclined surfaces formed stepwise in a direction obliquely intersecting the moving direction of the pressed-in member.
[0012] In addition, based on the switch device, the formation direction of the inclined surface when the movable contact portion contacts one of the plurality of fixed contact portions may form a smaller angle with respect to the moving direction of the pressed-in member than the formation direction of the inclined surface when the movable contact portion does not contact any of the plurality of fixed contact portions.
[0013] In addition, based on the switch device, the movable contact portion may also have an arm portion electrically connected to one of the plurality of fixed contact portions. By the sliding of the sliding portion of the pressed-in member, the arm portion is pressed by the sliding portion, whereby the movable contact portion swings and contacts / separates from other fixed contact portions among the plurality of fixed contact portions.
[0014] In addition, based on the switch device, the movable contact portion may also have a plurality of contact portions that contact / separate from at least one of the plurality of fixed contact portions.
[0015] In addition, based on the switch device, there may also be a plurality of the movable contact portions.
[0016] In addition, based on the switch device, the pressed-in member may have the sliding portion with respect to each of the plurality of movable contact portions.
[0017] In addition, based on the switch device, there may also be a pair of movable contact portions, and the pressed-in member has a pair of the sliding portions with respect to the pair of movable contact portions.
[0018] In addition, based on the switch device, a plurality of fixed contact portions may also have a first fixed contact portion and a second fixed contact portion. The movable contact portion is electrically connected to the first fixed contact portion, and when the pressed member moves toward the pressed position side, it contacts the second fixed contact portion, and when the pressed member moves toward the reference position side, it separates from the second fixed contact portion.
[0019] In addition, based on the switch device, a plurality of fixed contact portions may also have a first fixed contact portion and a second fixed contact portion. The movable contact portion is electrically connected to the first fixed contact portion, and when the pressed member moves toward the pressed position side, it separates from the second fixed contact portion, and when the pressed member moves toward the reference position side, it contacts the second fixed contact portion.
[0020] In addition, based on the switch device, a plurality of fixed contact portions may also have a first fixed contact portion, a second fixed contact portion, and a third fixed contact portion. The movable contact portion is electrically connected to the first fixed contact portion, and when the pressed member moves toward the pressed position side, it separates from the second fixed contact portion and contacts the third fixed contact portion, and when the pressed member moves toward the reference position side, it separates from the third fixed contact portion and contacts the second fixed contact portion.
[0021] Effects of the Invention
[0022] According to the present invention, it is possible to suppress a decrease in contact reliability between the movable contact portion and the fixed contact portion. Description of the Drawings
[0023] Figure 1 It is a perspective view showing an example of the switch device of the first embodiment.
[0024] Figure 2 It shows Figure 1 A perspective view showing an example of the internal structure of the switch device.
[0025] Figure 3 It is a side view of the internal structure of the switch device viewed from the left direction. Figure 2 of the switch device.
[0026] Figure 4 It is a top view of the internal structure of the switch device viewed from above. Figure 2 of the switch device.
[0027] Figure 5 It is a schematic view showing an example of the sliding portion of the first embodiment.
[0028] Figure 6is a side view and a top view schematically showing the insulated state of the first fixed contact portion and the second fixed contact portion of the first embodiment.
[0029] Figure 7 is a side view and a top view schematically showing the conducting state of the first fixed contact portion and the second fixed contact portion of the first embodiment.
[0030] Figure 8 is a perspective view showing an example of the internal structure of the switching device of the second embodiment.
[0031] Figure 9 is a top view of the internal structure of the switching device viewed from above Figure 8
[0032] Figure 10 is a side view and a top view schematically showing the conducting state of the first fixed contact portion and the second fixed contact portion of the second embodiment.
[0033] Figure 11 is a side view and a top view schematically showing the insulated state of the first fixed contact portion and the second fixed contact portion of the second embodiment.
[0034] Figure 12 is a perspective view showing an example of the internal structure of the switching device of the third embodiment.
[0035] Figure 13 is a side view of the internal structure of the switching device viewed from the left Figure 12
[0036] Figure 14 is a top view of the internal structure of the switching device viewed from above Figure 12
[0037] Figure 15 is a side view and a top view schematically showing the insulated state of the first fixed contact portion and the second fixed contact portion of the third embodiment.
[0038] Figure 16 is a side view and a top view schematically showing the conducting state of the first fixed contact portion and the second fixed contact portion of the third embodiment.
[0039] Figure 17 is a top view schematically showing the conducting state of the first fixed contact portion and the second fixed contact portion of the fourth embodiment.
[0040] Figure 18 is a top view schematically showing the conducting state of the first fixed contact portion and the third fixed contact portion of the fourth embodiment. Detailed implementation mode
[0041] Next, with reference to the accompanying drawings, embodiments of the present invention will be described. It should be noted that for the main structural components that are the same among the following-described embodiments, the same reference numerals are used, and since the description of the above-mentioned main structural components is repeated, it is omitted.
[0042] <Application Example>
[0043] The switch described in the present application is, for example, a vehicle-mounted microswitch used for purposes such as seat position detection, sunroof opening / closing detection, and door opening / closing detection.
[0044] (First Embodiment)
[0045] —Switch Device—
[0046] Figure 1 is a perspective view showing an example of the switch device 1A according to the first embodiment. Figure 2 represents Figure 1 a perspective view showing an example of the internal structure of the switch device 1A. Figure 3 is a side view of the internal structure of the switch device 1A as viewed from the left direction Figure 2 . Figure 4 is a top view of the internal structure of the switch device 1A as viewed from above Figure 2 .
[0047] In the drawings, the mark X represents the front-rear direction (depth direction) of the switch device 1 (A, B, C, D), the -X direction (negative X direction) is the front, and the +X direction (positive X direction) is the rear. The mark Y represents the left-right direction Y of the switch device 1 (A, B, C, D), the -Y direction (negative Y direction) is the left, and the +Y direction (positive Y direction) is the right. The mark Z represents the up-down direction of the switch device 1 (A, B, C, D), the -Z direction (negative Z direction) is the bottom, and the +Z direction (positive Z direction) is the top. The above description is the same in the following embodiments. It should be noted that the description of the above directions used in the embodiments of the present application is for the convenience of description and is not used to limit the arrangement direction of the switch device 1 described in the present application.
[0048] The switch device 1A according to the first embodiment includes: a housing 2, a pressed-in member 3, a biasing member 4, a fixed contact portion 5 (5a, 5b), and a movable contact portion 6 (refer to Figures 1 to 4 ). The switch device 1A according to the first embodiment is configured such that the movable contact portion 6 switches the conduction state with the fixed contact portion 5 (5a, 5b) by reciprocating the pressed-in member 3 in the moving direction D (+D / -D) along the up-down direction (Z direction).
[0049] <Housing>
[0050] The housing 2 has: a housing main body 20, a lid portion 21, and a lid fixing portion 22 (refer to Figure 1 ). The housing 2 houses a pressed-in member 3, a biasing member 4, a plurality of fixed contact portions 5 (5a, 5b), and a movable contact portion 6. The housing 2 of the first embodiment is formed with a structure in which the lid portion 21 is mounted on the upper portion of the housing main body 20 and the lid fixing portion 22 is covered from above the lid portion 21.
[0051] The housing main body 20 is formed in a substantially rectangular parallelepiped shape (refer to Figure 1 ). The housing main body 20 is formed, for example, by injection molding using a synthetic resin material.
[0052] On the upper portions of the outer surfaces of both side surfaces of the housing main body 20 of the first embodiment, there are provided engaged portions 200 for engaging the lid fixing portion 22. On the inner surface of the front surface of the housing main body 20 of the first embodiment, a guide groove 201 for guiding the pressed-in member 3 in the moving direction D is provided in the vertical direction (Z direction) (refer to Figure 3 、 Figure 4 ). Inside the housing main body 20, there is provided a biasing member positioning boss 202 for positioning the biasing member 4 (refer to Figure 3 、 Figure 4 ).
[0053] On the outer surface of the housing main body 20, there are provided pins 203, 204 that can be fitted to peripheral components of the switch device 1A (refer to Figure 1 ).
[0054] The lid portion 21 prevents foreign matters such as water and dust from entering the housing main body 20 and is formed of an elastic body such as rubber having good characteristics such as waterproofness, dustproofness, and flexibility. The lid portion 21 elastically deforms as the pressed-in member 3 moves.
[0055] The lid fixing portion 22 is formed in a U-shaped (substantially U-shaped) shape that opens downward (-Z direction) (refer to Figure 1 ). In the central portion of the lid fixing portion 22, there is provided a through hole 220 for allowing the pressed-in member 3 to protrude to the outside of the housing 2. At both end portions of the lid fixing portion 22 of the first embodiment, there are provided engaged portions 221 that are engaged by the engaged portions 200 of the housing main body 20.
[0056] <Pressed-in member>
[0057] Figure 5 is a schematic view showing an example of the sliding portion 31 of the first embodiment.
[0058] When the pressed-in member 3 receives a press from the outside, it moves from the reference position toward the pressed-in position side in the moving direction D, and returns to the reference position when released from the press. "Press from the outside" includes, for example, the press received due to the operation of the peripheral components of the switch device 1A. The "reference position" refers to the position of the pressed-in member 3 in a state where the pressed-in member 3 does not receive a press from the outside. The "pressed-in position" refers to the position of the pressed-in member 3 that is the farthest from the reference position within the movable range when the pressed-in member 3 receives a press from the outside. The "reference position" of the first embodiment is located closer to the upper side (+Z direction side) than the "pressed-in position". The "pressed-in position" of the first embodiment refers to the position of the pressed-in member 3 in a state where it abuts against the bottom surface of the housing main body 20 and restricts further movement in the downward direction (-Z direction).
[0059] The pressed-in member 3 has a key portion 30 and a sliding portion 31 (refer to Figure 2 , Figure 3 ).
[0060] The key portion 30 is the part that receives a press from the outside. The upper end of the key portion 30 of the first embodiment is formed in a substantially frustum of a quadrangular pyramid shape (refer to Figures 1 to 3 ).
[0061] The sliding portion 31 is formed in the -X direction / +Z direction that is oblique to the moving direction D and is a part that can slide on the movable contact portion 6. In the first embodiment, by making the sliding portion 31 slide and move relative to the movable contact portion 6, the sliding portion 31 can slide on the movable contact portion 6.
[0062] The sliding portion 31 of the first embodiment includes a first inclined surface 310 and a second inclined surface 311 that are formed stepwise in a direction oblique to the moving direction D of the pressed-in member 3 inside the leg portion 33 that extends downward from the key portion 30 along the inner surface of the front surface of the housing 2 (refer to Figure 3 , Figure 5 ). The first inclined surface 310 is formed in a direction that is oblique to the moving direction D of the pressed-in member 3 at an angle θ when viewed from the left-right direction (Y direction), and the second inclined surface 311 is above the first inclined surface (+Z direction side) and is formed in a direction that is oblique to the moving direction D of the pressed-in member 3 at an angle φ smaller than the angle θ when viewed from the left-right direction (Y direction).
[0063] Next, refer to Figure 3, a specific example in which the inserted component 3 of the first embodiment slides on the movable contact portion 6 with the sliding portion 31 will be described. As the inserted component 3 moves from the reference position toward the insertion position side in the +D direction, the sliding portion 31 of the inserted component 3 contacts the movable contact portion 6 in the +D direction and slides on the movable contact portion 6. As described above, since the sliding portion 31 of the first embodiment is formed in the -X direction / +Z direction, by contacting the sliding portion 31 in the +D direction, the movable contact portion 6 slides relative to the inserted component 3 on the sliding portion 31 in the -X direction / +Z direction. In this way, the inserted component 3 slides on the movable contact portion 6 with the sliding portion 31.
[0064] <Force applying component>
[0065] The force applying component 4 applies a force to the inserted component 3 toward the reference position and is formed of, for example, a spiral spring or the like. The force applying component 4 is inserted through the force applying component positioning boss 202 of the housing main body 20 (refer to Figure 3 , Figure 4 ). By providing the force applying component 4, when the inserted component 3 is released from an external press, the inserted component 3 returns to the reference position.
[0066] <Fixed contact portion>
[0067] The plurality of fixed contact portions 5 of the first embodiment include a first fixed contact portion 5a and a second fixed contact portion 5b (refer to Figure 2 , Figure 4 ). Both the first fixed contact portion 5a and the second fixed contact portion 5b of the first embodiment project from the lower part of the housing main body 20 and can be electrically connected to peripheral components of the switch device.
[0068] The first fixed contact portion 5a is arranged on the right side (+Y direction side) inside the housing main body 20 (refer to Figure 2 , Figure 4 ). The second fixed contact portion 5b is arranged on the left side (-Y direction side) inside the housing main body 20 (refer to Figure 2 , Figure 4 ). A contacted portion 51 for contacting the movable contact portion 6 is provided at the upper end portion of the second fixed contact portion 5b.
[0069] It should be noted that a resistor such as a chip resistor may be electrically connected between the first fixed contact portion 5a and the second fixed contact portion 5b, for example.
[0070] <Movable contact portion>
[0071] The movable contact portion 6 is swingably provided in a direction intersecting the moving direction D of the pressed-in member 3, and switches the conduction state between the first fixed contact portion 5a and the second fixed contact portion 5b. "Switching the conduction state" means an operation of switching from a conductive state to an insulating state or the reverse operation. The movable contact portion 6 of the first embodiment is electrically connected to the first fixed contact portion 5a and contacts / separates from the second fixed contact portion 5b to switch the conduction state between the first fixed contact portion 5a and the second fixed contact portion 5b.
[0072] The movable contact portion 6 of the first embodiment has an arm portion 60 and a contact portion 61 (see Figure 2 , Figure 4 ).
[0073] The arm portion 60 of the first embodiment opens toward the central portion of the housing main body 20 and is formed in a shape that is substantially U-shaped (roughly U-shaped) when viewed from above along the left-right direction (Y direction) (see Figure 4 ). The first fixed contact portion 5a is electrically connected to the end portion on the right side (+Y direction side) of the arm portion 60. As a specific example, the first fixed contact portion 5a is inserted into a slit 62 provided at the end portion on the right side (+Y direction side) of the arm portion 60, and the arm portion 60 is electrically connected to the first fixed contact portion 5a (see Figure 2 ).
[0074] The movable contact portion 6 is swingably provided with the right side (+Y direction side) corner portion 65 of the U-shaped arm portion 60 as the base end in a swing direction S (+S / −S) along the front-rear direction (X direction) (see Figure 4 ). In addition, the movable contact portion 6 uses the arm portion 60 as a leaf spring and returns to its natural state in a load-free state.
[0075] The contact portion 61 (610, 611) of the first embodiment contacts / separates from the second fixed contact portion 5b and is formed by branching the end portion on the left side (−Y direction side) of the arm portion 60 into a fork shape (see Figure 4 ). The contact portion 61 (610, 611) is arranged separately from the second fixed contact portion 5b when the arm portion 60 is in a load-free state (see Figures 2 to 4 ). Both the contact portion 610 and the contact portion 611 are formed in a U-shape that opens upward (+Z direction). The contact portion 611 is located inside the contact portion 610. Compared with the contact portion 610, the width of the contact portion 611 closer to the swing base end of the movable contact portion 6 is set smaller than the width of the contact portion 610 (see Figure 4 ). Thus, since the frictional force between the contact portion 610 and the second fixed contact portion 5b can be made uniform with the frictional force between the contact portion 611 and the second fixed contact portion 5b, the contact / separation between the contact portion 61 (610, 611) and the second fixed contact portion 5b is made smooth.
[0076] Next, with reference to Figure 4 , a specific example of switching the conduction state between the movable contact portion 6 of the first embodiment and the first fixed contact portion 5a and the second fixed contact portion 5b will be described.
[0077] When the movable contact portion 6 of the first embodiment described above is pressed in the -X direction along the arm portion 60, it swings in the +S direction with the corner portion 65 as the base end. Due to the swing of the movable contact portion 6 in the +S direction, the contact portion 61 of the movable contact portion 6 separated from the second fixed contact portion 5b comes into contact with the contacted portion 51 of the second fixed contact portion 5b. Since the movable contact portion 6 electrically connected to the first fixed contact portion 5a comes into contact with the second fixed contact portion 5b, the first fixed contact portion 5a and the second fixed contact portion 5b are in a conductive state. Further, when the movable contact portion 6 is released from the pressing along the -X direction and becomes a no-load state, it attempts to return to the natural state and swings in the -S direction. Due to the swing of the movable contact portion 6 in the -S direction, the contact portion 61 of the movable contact portion 6 in contact with the second fixed contact portion 5b is separated from the second fixed contact portion 5b. Since the movable contact portion 6 electrically connected to the first fixed contact portion 5a is separated from the second fixed contact portion 5b, the first fixed contact portion 5a and the second fixed contact portion 5b are in an insulating state. In this way, the movable contact portion 6 switches the conduction state between the first fixed contact portion 5a and the second fixed contact portion 5b.
[0078] As described above, since the movable contact portion 6 has a plurality of contact portions 61 (610, 611), for example, even when there is a contact problem with the second fixed contact portion 5b due to oxidation of the contact portion 610 or the like, conduction between the first fixed contact portion 5a and the second fixed contact portion 5b can be ensured via the contact portion 611, so the contact reliability between the first fixed contact portion 5a and the second fixed contact portion 5b is improved.
[0079] Both the first fixed contact portion 5a and the second fixed contact portion 5b of the first embodiment are integrally formed with the housing main body 20 by insert molding.
[0080] —Operation of the Switch Device—
[0081] Next, the operation of the switch device 1A of the first embodiment will be described.
[0082] Figure 6 are a side view and a top view schematically showing the insulating state of the first fixed contact portion 5a and the second fixed contact portion 5b of the first embodiment. Figure 7FIG. 0 is a side view and a top view schematically showing a state where the first fixed contact portion 5a and the second fixed contact portion 5b of the first embodiment are conducting. In the drawings, a longitudinal dashed line indicates the sliding position of the pressed-in member 3 relative to the movable contact portion 6. In the drawings, a lateral dashed line conceptually indicates the reference position of the pressed-in member 3. Further, in the drawings, the shaded portion indicates the portion that contacts the second fixed contact portion 5b in the contact portion 61 of the movable contact portion 6. The above settings are the same in the following embodiments.
[0083] As Figure 6 shown, when the pressed-in member 3 is at the reference position, the movable contact portion 6 is in a no-load state, the contact portion 61 of the movable contact portion 6 is separated from the second fixed contact portion 5b, and the first fixed contact portion 5a and the second fixed contact portion 5b are in an insulated state.
[0084] As Figure 7 shown, when the pressed-in member 3 is pressed from the outside, the pressed-in member 3 is guided by the guide groove 201 of the housing 2 and moves toward the pressed-in position side in the +D direction. As the pressed-in member 3 moves toward the pressed-in position side, the sliding portion 31 slides toward the rear side (+X direction side) of the arm portion 60 of the movable contact portion 6. When the pressed-in member 3 slides on the arm portion 60 of the movable contact portion 6, the arm portion 60 slides relative to the pressed-in member 3 on the sliding portion 31 in the -X direction / +Z direction and is pressed in the -X direction by the sliding portion 31. Due to the pressing of the sliding portion 31 in the -X direction, the movable contact portion 6 swings in the +S direction, that is, in a direction crossing the moving direction D of the pressed-in member 3. Due to the +S direction swing of the movable contact portion 6, the contact portion 61 of the movable contact portion 6 electrically connected to the first fixed contact portion 5a contacts the contacted portion 51 of the second fixed contact portion 5b, and the first fixed contact portion 5a and the second fixed contact portion 5b are in a conducting state.
[0085] As Figure 6 shown, when the pressed-in member 3 is released from the external pressing, the pressed-in member 3 moves in the -D direction due to the biasing force of the biasing member 4 and returns to the reference position. The sliding of the pressed-in member 3 relative to the movable contact portion 6 stops, the movable contact portion 6 is released from the pressing in the -X direction by the sliding portion 31, and swings in the -S direction. Due to the -S direction swing of the movable contact portion 6, the contact portion 61 of the movable contact portion 6 is separated from the second fixed contact portion 5b, and the first fixed contact portion 5a and the second fixed contact portion 5b are again in an insulated state.
[0086] As described above, when the pressed-in member 3 moves from the reference position toward the pressed-in position side, due to the sliding of the sliding portion 31 of the pressed-in member 3, the movable contact portion 6 is pressed by the sliding portion 31. As a result, the movable contact portion 6 swings, contacts / separates from one of the plurality of fixed contact portions 5 (5a, 5b), i.e., the second fixed contact portion 5b, and switches the conduction state between the first fixed contact portion 5a and the second fixed contact portion 5b.
[0087] Here, when the angle at which the sliding portion 31 intersects obliquely with the moving direction D of the pressed-in member 3 is ω, the ratio of the moving amount in the moving direction D of the pressed-in member 3 to the sliding amount of the movable contact portion 6 on the sliding portion 31 is approximately cos(ω):1. In addition, since the sliding portion 31 is formed in the +sin(ω) direction / +cos(ω) direction, the movable contact portion 6 slides relative to the pressed-in member 3 on the sliding portion 31 in the +sin(ω) direction / +cos(ω) direction, and is pressed by the sliding portion 31 in the +sin(ω) direction to swing. That is, the ratio of the moving amount in the moving direction D of the pressed-in member 3 to the moving amount in the swinging direction S of the movable contact portion 6 is approximately 1:tan(ω). Therefore, the moving amount in the swinging direction S of the movable contact portion 6 is necessarily smaller than the moving amount in the moving direction D of the pressed-in member 3. By suppressing the moving amount of the movable contact portion 6, after the movable contact portion 6 contacts the second fixed contact portion 5b, the sliding distance on the second fixed contact portion 5b is also controlled. Therefore, the wear amount of the second fixed contact portion 5b can be suppressed, and furthermore, the reduction in the contact reliability between the movable contact portion 6 and the second fixed contact portion 5b can be suppressed.
[0088] Of course, the shape of the sliding portion 31 is not limited to the above description. For example, it can be a flat surface, a curved surface, or a concavo-convex surface. In short, as long as it is a shape that can suppress the moving amount in the swinging direction S of the movable contact portion 6 with respect to the moving amount in the moving direction D of the pressed-in member 3. The angle ω formed by the moving direction D of the pressed-in member 3 and the sliding portion 31 that intersects obliquely with the moving direction D is not limited to the above example. For example, it can also change according to the moving amount of the pressed-in member 3. In addition, the forming direction of the sliding portion 31 is not limited to the above description. For example, it can be the +X direction / +Z direction, or the Y direction / Z direction.
[0089] In addition, in the first embodiment, as described above, since the sliding portion 31 includes the first inclined surface 310 and the second inclined surface 311 that are stepwise formed in a direction obliquely intersecting the moving direction D of the pressed-in member 3, when the pressed-in member 3 moves from the reference position toward the pressed-in position side, first, the first inclined surface 310 of the sliding portion 31 slides on the movable contact portion 6, and as this movement progresses, the second inclined surface 311 of the sliding portion 31 slides on the movable contact portion 6. Since the angles of the first inclined surface 310 and the second inclined surface 311 with respect to the moving direction D of the pressed-in member 3 are the angle θ and the angle φ, respectively, the amount of movement in the swinging direction S of the movable contact portion 6 varies according to the first inclined surface 310 and the second inclined surface 311. In this way, by including the sliding portion 31 with a plurality of inclined surfaces (the first inclined surface 310 and the second inclined surface 311) that are stepwise formed in a direction obliquely intersecting the moving direction D of the pressed-in member 3, it is possible to vary the amount of movement in the swinging direction S of the movable contact portion 6 according to the amount of movement of the pressed-in member 3 with a simple structure.
[0090] Furthermore, in the first embodiment, when the movable contact portion 6 comes into contact with the second fixed contact portion 5b, the pressed-in member 3 slides on the movable contact portion 6 with the second inclined surface 311 of the sliding portion 31. As described above, the first inclined surface 310 is formed in a direction obliquely intersecting the moving direction D of the pressed-in member 3 at an angle θ, and the second inclined surface 311 is formed in a direction obliquely intersecting the moving direction D of the pressed-in member 3 at an angle φ smaller than the angle θ. When applying the ratio of the amount of movement in the moving direction D of the pressed-in member 3 to the amount of movement in the swinging direction S of the movable contact portion 6 described above, the ratio of the amount of movement in the swinging direction S of the movable contact portion 6 when it comes into contact with the second fixed contact portion 5b to the amount of movement in the swinging direction S of the movable contact portion 6 when it is not in contact with any of the fixed contact portions 5 is approximately tan(φ):tan(θ). Therefore, the amount of movement in the swinging direction S of the movable contact portion 6 when it comes into contact with the second fixed contact portion 5b is smaller than the amount of movement in the swinging direction S of the movable contact portion 6 when it is not in contact with any of the fixed contact portions 5. As a result, after the movable contact portion 6 comes into contact with the second fixed contact portion 5b, the sliding distance on the second fixed contact portion 5b can be suppressed, so that the amount of wear of the second fixed contact portion 5b can be suppressed, and further, the reduction in the contact reliability between the movable contact portion 6 and the second fixed contact portion 5b can be suppressed.
[0091] In the first embodiment, as described above, by suppressing the sliding distance of the movable contact portion 6 on the second fixed contact portion 5b, the switch device 1A can be miniaturized.
[0092] In addition, in the first embodiment, as described above, the movable contact portion 6 has an arm portion 60 that is electrically connected to one of the plurality of fixed contact portions 5 (5a, 5b), namely, the first fixed contact portion 5a. Due to the sliding of the sliding portion 31 of the inserted member 3, the arm portion 60 is pressed by the sliding portion 31, whereby the movable contact portion 6 swings and contacts / separates from the other fixed contact portion, namely, the second fixed contact portion 5b. By having the arm portion 60 in the movable contact portion 6, the movable contact portion 6 can be swingably provided with a simple structure. In addition, since the sliding portion 31 of the inserted member 3 slides on the arm portion 60, the conduction state between the first fixed contact portion 5a and the second fixed contact portion 5b of the arm portion 60 can be switched with a simple structure that uses the sliding of the sliding portion 31 to swing the movable contact portion 6.
[0093] In addition, from the perspective of corrosion resistance, the contacted portion 51 of the second fixed contact portion 5b contacted by the movable contact portion 6 is preferably covered with a coating film such as a plating. In the first embodiment, as described above, by suppressing the sliding distance of the movable contact portion 6 on the second fixed contact portion 5b, the plating area of the second fixed contact portion 5b can be reduced, so that the manufacturing cost can be reduced.
[0094] As described above, the switch device 1A of the first embodiment can be applied to a normally open (NO) type switch.
[0095] (Second Embodiment)
[0096] Next, for the switch device 1B of the second embodiment, only the differences from the above-described first embodiment will be described.
[0097] Figure 8 It is a perspective view showing an example of the internal structure of the switch device 1B of the second embodiment. Figure 9 It is a top view of the internal structure of the switch device 1B viewed from above Figure 8
[0098] The contact portions 61 (610, 611) of the second embodiment are arranged to contact the contacted portion 51 of the second fixed contact portion 5b when the arm portion 60 is in a no-load state.
[0099] Next, with reference to Figure 9 A specific example of switching the conduction state between the movable contact portion 6 of the second embodiment and the first fixed contact portion 5a and the second fixed contact portion 5b will be described.
[0100] When the movable contact portion 6 of the second embodiment described above is pressed in the -X direction along the arm portion 60, it swings in the +S direction. Due to the swing of the movable contact portion 6 in the +S direction, the contact portion 61 of the movable contact portion 6 that contacts the second fixed contact portion 5b separates from the second fixed contact portion 5b. Since the movable contact portion 6 electrically connected to the first fixed contact portion 5a separates from the second fixed contact portion 5b, the first fixed contact portion 5a and the second fixed contact portion 5b are in an insulated state. In addition, when the movable contact portion 6 is released from the pressing in the -X direction and is in a no-load state, it attempts to return to the natural state and swings in the -S direction. Due to the swing of the movable contact portion 6 in the -S direction, the contact portion 61 of the movable contact portion 6 that has separated from the second fixed contact portion 5b contacts the second fixed contact portion 5b. Since the movable contact portion 6 electrically connected to the first fixed contact portion 5a contacts the second fixed contact portion 5b, the first fixed contact portion 5a and the second fixed contact portion 5b are in a conductive state. In this way, the movable contact portion 6 switches the conductive state between the first fixed contact portion 5a and the second fixed contact portion 5b.
[0101] Next, the operation of the switch device 1B of the second embodiment will be described.
[0102] Figure 10 are side views and top views schematically showing the conductive state of the first fixed contact portion 5a and the second fixed contact portion 5b of the second embodiment. Figure 11 are side views and top views schematically showing the insulated state of the first fixed contact portion 5a and the second fixed contact portion 5b of the second embodiment.
[0103] As Figure 10 shown, when the pressed-in member 3 is in the reference position, the movable contact portion 6 is in a no-load state, the contact portion 61 of the movable contact portion 6 contacts the contacted portion 51 of the second fixed contact portion 5b, and the first fixed contact portion 5a and the second fixed contact portion 5b are in a conductive state.
[0104] As Figure 11 shown, when the pressed-in member 3 is pressed from the outside, it moves toward the pressed-in position side in the +D direction. As the pressed-in member 3 moves toward the pressed-in position side, the sliding portion 31 slides on the arm portion 60 of the movable contact portion 6. When the movable contact portion 6 slides from the pressed-in member 3, the sliding portion 31 presses it in the -X direction and it swings in the +S direction. Due to the swing of the movable contact portion 6 in the +S direction, the contact portion 61 of the movable contact portion 6 electrically connected to the first fixed contact portion 5a separates from the second fixed contact portion 5b, and the first fixed contact portion 5a and the second fixed contact portion 5b are in an insulated state.
[0105] As Figure 10As shown, when the pressed member 3 is released from an external press, the pressed member 3 moves in the -D direction due to the biasing force of the biasing member 4 and returns to the reference position. The sliding of the pressed member 3 relative to the movable contact portion 6 stops, and the movable contact portion 6 is released from the press in the -X direction of the sliding portion 31 and swings in the -S direction. Due to the -S direction swing of the movable contact portion 6, the contact portion 61 of the movable contact portion 6 contacts the contacted portion 51 of the second fixed contact portion 5b, and the first fixed contact portion 5a and the second fixed contact portion 5b are again in a conductive state.
[0106] As described above, the switch device 1B of the second embodiment can be applied to a normally closed (NC) type switch.
[0107] (Third Embodiment)
[0108] Next, for the switch device 1C of the third embodiment, only the differences from the above-described first embodiment will be described.
[0109] Figure 12 FIG. is a perspective view showing an example of the internal structure of the switch device 1C of the third embodiment. Figure 13 Viewed from the left direction Figure 12 FIG. is a side view of the internal structure of the switch device 1C. Figure 14 Viewed from above Figure 12 FIG. is a top view of the internal structure of the switch device 1C.
[0110] The switch device 1C of the third embodiment includes: a housing 2, a pressed member 3, a biasing member 4, fixed contact portions 5 (5a, 5b), and a pair of opposed movable contact portions 6a and 6b (see Figure 12 ).
[0111] The pressed member 3 of the third embodiment has a sliding portion with respect to each of the movable contact portions 6a and 6b. Specifically, the pressed member 3 has: a sliding portion 31a that can slide on the movable contact portion 6a, and a sliding portion 31b that can slide on the movable contact portion 6b (see Figure 13 ). The sliding portion 31a is formed inside a leg portion 33a that extends downward from the key portion 30 along the inner surface of the front surface of the housing 2, in the -X direction / +Z direction, and the sliding portion 31b is formed inside a leg portion 33b that extends downward from the key portion 30 along the inner surface of the back surface of the housing 2, in the +X direction / +Z direction (see Figure 13 ).
[0112] Next, refer to Figure 13, a specific example in which the inserted member 3 of the third embodiment slides on the movable contact portions 6a and 6b with the sliding portions 31a and 31b will be described. When the inserted member 3 moves from the reference position toward the insertion position side in the +D direction, the sliding portion 31a of the inserted member 3 contacts the movable contact portion 6a in the +D direction and slides on the movable contact portion 6a. At this time, the movable contact portion 6a slides relative to the inserted member 3 on the sliding portion 31a in the -X direction / +Z direction. Similarly, the sliding portion 31b contacts the movable contact portion 6b in the +D direction and slides on the movable contact portion 6b. At this time, the movable contact portion 6b slides relative to the inserted member 3 on the sliding portion 31b in the +X direction / +Z direction.
[0113] At the upper end portion of the first fixed contact portion 5a of the third embodiment, a contacted portion 51a for contacting the movable contact portion 6b is provided. At the upper end portion of the second fixed contact portion 5b of the third embodiment, a contacted portion 51b for contacting the movable contact portion 6a is provided (refer to Figure 12 , Figure 14 ).
[0114] The movable contact portions 6a and 6b of the third embodiment are respectively electrically connected to the first fixed contact portion 5a and the second fixed contact portion 5b, contact and separate from each other, and switch the conduction state between the first fixed contact portion 5a and the second fixed contact portion 5b.
[0115] The movable contact portion 6a of the third embodiment has an arm portion 60a and a contact portion 61a, and the movable contact portion 6b has an arm portion 60b and a contact portion 61b (refer to Figure 12 , Figure 14 ). The first fixed contact portion 5a is electrically connected to the end portion on the right side (+Y direction side) of the arm portion 60a of the movable contact portion 6a. The second fixed contact portion 5b is electrically connected to the end portion on the left side (-Y direction side) of the arm portion 60b of the movable contact portion 6b (refer to Figure 12 , Figure 14 ).
[0116] The movable contact portion 6a is swingably provided about the right side (+Y direction side) corner portion 65a of the U-shaped arm portion 60a in the swing direction S1 (+S1 / -S1) along the front-rear direction (X direction) (refer to Figure 14 ). Similarly, the movable contact portion 6b is swingably provided about the left side (-Y direction side) corner portion 65b of the U-shaped arm portion 60b in the swing direction S2 (+S2 / -S2) along the front-rear direction (X direction) (refer to Figure 14 ).
[0117] The contact portion 61a is arranged to be separated from the second fixed contact portion 5b when the arm portion 60a is in a no-load state. Similarly, the contact portion 61b is arranged to be separated from the first fixed contact portion 5a when the arm portion 60b is in a no-load state.
[0118] Next, with reference to Figure 14 , a specific example of switching the conduction state between the movable contact portions 6a and 6b and the first fixed contact portion 5a and the second fixed contact portion 5b in the third embodiment will be described.
[0119] When the movable contact portion 6a of the above-described first embodiment is pressed along the -X direction by the arm portion 60a, it swings in the +S1 direction with the corner portion 65a as the base end. Similarly, when the movable contact portion 6b is pressed along the +X direction by the arm portion 60b, it swings in the +S2 direction with the corner portion 65b as the base end. Due to the swing of the movable contact portion 6a in the +S1 direction, the contact portion 61a of the movable contact portion 6a separated from the second fixed contact portion 5b comes into contact with the contacted portion 51b of the second fixed contact portion 5b, and due to the swing of the movable contact portion 6b in the +S2 direction, the contact portion 61b of the movable contact portion 6b separated from the first fixed contact portion 5a comes into contact with the contacted portion 51a of the first fixed contact portion 5a. Since the first fixed contact portion 5a and the second fixed contact portion 5b are in contact with each other, the first fixed contact portion 5a and the second fixed contact portion 5b are in a conductive state. In addition, when the movable contact portion 6a is released from the press along the -X direction and is in a no-load state, it attempts to return to the natural state and swings in the -S1 direction. Similarly, when the movable contact portion 6b is released from the press along the +X direction and is in a no-load state, it attempts to return to the natural state and swings in the -S2 direction. Due to the swing of the movable contact portion 6a in the -S1 direction, the contact portion 61a of the movable contact portion 6a in contact with the second fixed contact portion 5b is separated from the second fixed contact portion 5b, and due to the swing of the movable contact portion 6b in the -S2 direction, the contact portion 61b of the movable contact portion 6b in contact with the first fixed contact portion 5a is separated from the first fixed contact portion 5a. Since the first fixed contact portion 5a and the second fixed contact portion 5b are separated from each other, the first fixed contact portion 5a and the second fixed contact portion 5b are in an insulating state. In this way, the conduction state between the movable contact portion 6 and the first fixed contact portion 5a and the second fixed contact portion 5b is switched.
[0120] As described above, since the switching device 1C has a plurality of movable contact portions (movable contact portion 6a and movable contact portion 6b), for example, even when contact problems occur between the first fixed contact portion 5a and the second fixed contact portion 5b due to oxidation of the movable contact portion 6a or the like, conduction between the first fixed contact portion 5a and the second fixed contact portion 5b can be ensured via the movable contact portion 6b. Therefore, the contact reliability between the first fixed contact portion 5a and the second fixed contact portion 5b is improved.
[0121] Next, the operation of the switching device 1C of the third embodiment will be described.
[0122] Figure 15 FIGS. are side views and top views schematically showing a state in which the first fixed contact portion 5a and the second fixed contact portion 5b of the third embodiment are insulated. Figure 16 FIGS. are side views and top views schematically showing a state in which the first fixed contact portion 5a and the second fixed contact portion 5b of the third embodiment are conducting.
[0123] As Figure 15 shown, when the pressed member 3 is in the reference position, both the movable contact portion 6a and the movable contact portion 6b are in a no-load state, the movable contact portion 6a and the movable contact portion 6b are separated from each other, and the first fixed contact portion 5a and the second fixed contact portion 5b are in an insulated state.
[0124] As Figure 16 shown, when the pressed member 3 is pressed from the outside, the pressed member 3 is guided by the guide groove 201 of the housing 2 and moves toward the pressed position side in the +D direction. As the pressed member 3 moves toward the pressed position side, the sliding portion 31a slides on the rear side (+X direction side) of the arm portion 60a of the movable contact portion 6a, and the sliding portion 31b slides on the front side (−X direction side) of the arm portion 60b of the movable contact portion 6b. When the pressed member 3 slides on the arm portion 60a of the movable contact portion 6a, the arm portion 60a slides relative to the pressed member 3 in the −X direction / +Z direction on the sliding portion 31a and is pressed in the −X direction by the sliding portion 31a. The movable contact portion 6a swings in the +S1 direction due to the pressing of the sliding portion 31a in the −X direction. Similarly, when the pressed member 3 slides on the arm portion 60b of the movable contact portion 6b, the arm portion 60b slides relative to the pressed member 3 in the +X direction / +Z direction on the sliding portion 31b and is pressed in the +X direction by the sliding portion 31b. The movable contact portion 6b swings in the +S2 direction due to the pressing of the sliding portion 31b in the +X direction.
[0125] Due to the swing of the movable contact portion 6a in the +S1 direction and the swing of the movable contact portion 6b in the +S2 direction, the contact portion 61a of the movable contact portion 6a contacts the contacted portion 51b of the second fixed contact portion 5b, and the contact portion 61b of the movable contact portion 6b contacts the contacted portion 51a of the first fixed contact portion 5a. That is, the first fixed contact portion 5a and the second fixed contact portion 5b contact each other, and the first fixed contact portion 5a and the second fixed contact portion 5b are in a conductive state.
[0126] As Figure 15 shown, when the pressed-in member 3 is released from the external pressing, the pressed-in member 3 moves in the -D direction and returns to the reference position due to the biasing force of the biasing member 4. The sliding of the pressed-in member 3 relative to the movable contact portion 6 stops, and the movable contact portion 6a is released from the pressing along the -X direction of the sliding portion 31a and swings in the -S1 direction. Similarly, the movable contact portion 6b is released from the pressing along the +X direction of the sliding portion 31b and swings in the -S2 direction. Due to the swing of the movable contact portion 6 in the -S1 direction and the swing of the movable contact portion 6b in the -S2 direction, the first fixed contact portion 5a and the second fixed contact portion 5b are separated from each other, and the first fixed contact portion 5a and the second fixed contact portion 5b are again in an insulating state.
[0127] As described above, in the third embodiment, by providing the sliding portions for the pressed-in member 3 with respect to each of the plurality of movable contact portions (the movable contact portion 6a and the movable contact portion 6b), the plurality of movable contact portions (the movable contact portion 6a and the movable contact portion 6b) can be swung respectively, and the design freedom of the switch device 1C is improved.
[0128] In addition, as described above, the switch device 1C has a pair of movable contact portions 6a and 6b, and the pressed-in member 3 has a pair of sliding portions 31a and 31b with respect to the pair of movable contact portions 6a and 6b. Thus, as the pressed-in member 3 moves from the reference position toward the pressed-in position side, the pair of sliding portions 31a and 31b slide on the movable contact portions 6a and 6b with good balance respectively. Therefore, the stability when the pressed-in member 3 is pressed in is improved.
[0129] As described above, the switch device 1C of the third embodiment can be applied to a normally open (NO) type switch.
[0130] (Fourth Embodiment)
[0131] Next, for the switch device of the fourth embodiment, only the differences from the above-described first embodiment will be described.
[0132] Figure 17It is a top view schematically showing the conducting state of the first fixed contact portion 5a and the second fixed contact portion 5b of the fourth embodiment. Figure 18 It is a top view schematically showing the conducting state of the first fixed contact portion 5a and the third fixed contact portion 5c of the fourth embodiment.
[0133] The fixed contact portion 5 of the fourth embodiment includes: a first fixed contact portion 5a, a second fixed contact portion 5b, and a third fixed contact portion 5c (see Figure 17 , Figure 18 ). The second fixed contact portion 5b has a contacted portion 51b disposed on the left side (-Y direction side) within the housing main body 20, and the third fixed contact portion 5c has a contacted portion 51c disposed in front of the contacted portion 51b of the second fixed contact portion 5b (-X direction side) (see Figure 17 , Figure 18 ).
[0134] The movable contact portion 6 of the fourth embodiment is electrically connected to the first fixed contact portion 5a and contacts / separates from the second fixed contact portion 5b and the third fixed contact portion 5c to switch the conducting state between the second fixed contact portion 5b and the third fixed contact portion 5c.
[0135] The contact portion 61 of the fourth embodiment is disposed in contact with the second fixed contact portion 5b when the arm portion 60 is in a no-load state.
[0136] Next, with reference to Figure 17 and Figure 18 , a specific example of the movable contact portion 6 of the fourth embodiment switching the conducting state between the second fixed contact portion 5b and the third fixed contact portion 5c will be described.
[0137] When the movable contact portion 6 of the above-described fourth embodiment is pressed in the -X direction along the arm portion 60, it swings in the +S direction. Due to the +S direction swing of the movable contact portion 6, the contact portion 61 of the movable contact portion 6 that contacts the second fixed contact portion 5b separates from the second fixed contact portion 5b and contacts the contacted portion 51c of the third fixed contact portion 5c (see Figure 18)。Since the movable contact portion 6 electrically connected to the first fixed contact portion 5a separates from the second fixed contact portion 5b and contacts the third fixed contact portion 5c, the first fixed contact portion 5a and the second fixed contact portion 5b are in an insulated state, and the first fixed contact portion 5a and the third fixed contact portion 5c are in a conducting state. In addition, when the movable contact portion 6 is released from the pressing along the -X direction and is in a no-load state, it attempts to return to its natural state and swings in the -S direction. Due to the swing of the movable contact portion 6 in the -S direction, the contact portion 61 of the movable contact portion 6 that contacts the third fixed contact portion 5c separates from the third fixed contact portion 5c and contacts the contacted portion 51b of the second fixed contact portion 5b (see Figure 17 )。Since the movable contact portion 6 electrically connected to the first fixed contact portion 5a separates from the third fixed contact portion 5b and contacts the second fixed contact portion 5b, the first fixed contact portion 5a and the second fixed contact portion 5b are in a conducting state, and the first fixed contact portion 5a and the third fixed contact portion 5c are in an insulated state. In this way, the conduction state between the first fixed contact portion 5a and the second fixed contact portion 5b is switched by the movable contact portion 6.
[0138] As described above, the switch device of the fourth embodiment can be applied to a double-throw switch.
[0139] It should be noted that in the above first to fourth embodiments, a single-pole switch is exemplified and described, but the switch device described in the present application can also be applied to a multi-pole switch.
[0140] The above embodiments and examples are illustrative in all aspects and are not the basis for limiting descriptions. Therefore, the technical scope of the present invention is not defined only by the above embodiments and examples, but is defined based on the description of the scope of the technical solution. In addition, it includes all changes within the meaning and scope equivalent to the scope of the technical solution.
[0141] Description of Reference Numerals
[0142] 1 Switch device; 2 Housing; 3 Pressed-in member; 30 Button portion; 31 Sliding portion; 4 Biasing member; 5 Fixed contact portion; 6 Movable contact portion; 60 Arm portion; 61 Contact portion; D Moving direction; S Swing direction.
Claims
1. A switch device having: A pressed-in member which, when pressed from the outside, moves from a reference position toward a pressed-in position side in a specified moving direction, and returns to the reference position when released from the pressing; A biasing member which biases the pressed-in member toward the reference position; A plurality of fixed contact portions; At least one movable contact portion which is swingably provided in a direction crossing the moving direction of the pressed-in member, and switches the conduction state between the plurality of fixed contact portions by swinging in a direction crossing the moving direction of the pressed-in member; The switch device is characterized in that The pressed-in member has a sliding portion formed in a direction obliquely intersecting the moving direction and slidable on the movable contact portion, When the pressed-in member moves from the reference position toward the pressed-in position side, due to the sliding of the sliding portion of the pressed-in member, the movable contact portion is pressed by the sliding portion, whereby the movable contact portion swings in a direction crossing the moving direction of the pressed-in member and contacts / separates from at least one of the plurality of fixed contact portions.
2. The switch device according to claim 1, characterized in that The sliding portion includes a plurality of inclined surfaces formed stepwise in a direction obliquely intersecting the moving direction of the pressed-in member.
3. The switch device according to claim 2, characterized in that The formation direction of the inclined surface when the movable contact portion contacts one of the plurality of fixed contact portions forms a smaller angle with respect to the moving direction of the pressed-in member than the formation direction of the inclined surface when the movable contact portion does not contact any of the plurality of fixed contact portions.
4. The switch device according to any one of claims 1 to 3, characterized in that The movable contact portion has an arm portion electrically connected to one of the plurality of fixed contact portions, Due to the sliding of the sliding portion of the pressed-in member, the arm portion is pressed by the sliding portion, whereby the movable contact portion swings and contacts / separates from other fixed contact portions among the plurality of fixed contact portions.
5. The switch device according to any one of claims 1 to 3, characterized in that The movable contact portion has a plurality of contact portions which contact / separate from at least one of the plurality of fixed contact portions.
6. The switch device according to any one of claims 1 to 3, characterized in that There are a plurality of the movable contact portions.
7. The switch device according to claim 6, characterized in that The pressed-in member has the sliding portion with respect to each of the plurality of movable contact portions.
8. The switch device according to claim 7, characterized in that There is a pair of movable contact portions, The pressed-in member has a pair of the sliding portions with respect to the pair of movable contact portions.
9. The switch device according to any one of claims 1 to 3, characterized in that The plurality of fixed contact portions have a first fixed contact portion and a second fixed contact portion, The movable contact portion is electrically connected to the first fixed contact portion, and contacts the second fixed contact portion when the pressed member moves toward the pressed position side, and separates from the second fixed contact portion when the pressed member moves toward the reference position side.
10. The switch device according to any one of claims 1 to 3, characterized in that the plurality of fixed contact portions include a first fixed contact portion and a second fixed contact portion, the movable contact portion is electrically connected to the first fixed contact portion, separates from the second fixed contact portion when the pressed member moves toward the pressed position side, and contacts the second fixed contact portion when the pressed member moves toward the reference position side.
11. The switch device according to any one of claims 1 to 3, characterized in that the plurality of fixed contact portions include: a first fixed contact portion, a second fixed contact portion, and a third fixed contact portion, the movable contact portion is electrically connected to the first fixed contact portion, separates from the second fixed contact portion and contacts the third fixed contact portion when the pressed member moves toward the pressed position side, and separates from the third fixed contact portion and contacts the second fixed contact portion when the pressed member moves toward the reference position side.
Citation Information
Patent Citations
Key structure
US20170294276A1