Switch

Abstract

The utility model provides a switch which comprises a key, a transition piece and a supporting structure, the key and the transition piece are both rotatably connected with the supporting structure, a part of the transition piece is located between the key and the supporting structure, and the transition piece is located between the key and the supporting structure. The transition piece can rotate along with rotation of the key, the rotation angle of the transition piece is larger than that of the key, and the rotation center of the transition piece is located on the side, away from the supporting structure, of the key. The rotation angle of the key of the switch is small, and the ultra-thin requirement of the switch is met.

Description

Technical Field

[0001] This application relates to the technical field of electrical equipment, and particularly to a switch. Background Art

[0002] A switch is usually configured with a panel. By pressing the panel to rotate it by a certain angle, the on / off control and switching control of the circuit are realized. The smaller the rotation angle of the panel, the more conducive to thinning the switch.

[0003] Currently, some switches are configured with a driving member. The driving member is located on the back side of the panel. When the panel rotates, it can drive the driving member to rotate. The rotation centers of both the panel and the driving member are located on the back side of the panel. The rotation angle of the driving member is greater than that of the panel. When the driving member rotates, it drives the moving contact to make the moving contact combine with or separate from the static contact. Such a design can reduce the rotation angle of the panel to a certain extent, but the reduction amplitude still cannot meet the ultra-thin requirement of the switch.

[0004] Therefore, how to further reduce the rotation angle of the panel to meet the ultra-thin requirement of the switch is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] To solve the above problems, this application provides a switch. The switch includes a button, a transition member, and a support structure. Both the button and the transition member are rotatably connected to the support structure. A part of the transition member is located between the button and the support structure. The transition member can rotate with the rotation of the button and the rotation angle of the transition member is greater than that of the button. The rotation center of the transition member is located on the side of the button away from the support structure.

[0006] In an implementation manner of the switch, one of the support structure and the button is provided with a round shaft, and the other is provided with a round hole that cooperates with the round shaft. The support structure and the button are rotatably connected through the round shaft and the round hole.

[0007] In an implementation manner of the switch, one of the support structure and the transition member is provided with a connection hole, and the other is provided with a connection shaft. The support structure and the button are rotatably connected through the connection shaft and the connection hole. An arc-shaped side wall is provided on one side and / or the other side of the connection hole close to the button. When the transition member rotates, the connection shaft slides along the arc-shaped side wall.

[0008] In an implementation manner of the switch, an arc-shaped side surface is provided on one side and / or the other side of the connection shaft close to the button. The arc-shaped side surface has the same radian as the arc-shaped side wall on the same side, the arc length is shorter than that of the arc-shaped side wall on the same side, and is arranged parallel to the arc-shaped side wall on the same side.

[0009] In one embodiment of the switch, a side of the button close to the transition piece is integrally provided with a resistance protrusion, and the button pushes the transition piece to rotate via the resistance protrusion; or, a swingable transmission member is provided between the button and the transition piece, and the button drives the transition piece to rotate via the transmission member.

[0010] In one embodiment of the switch, the support structure includes a bracket and a fixing seat, the bracket is assembled on a side of the fixing seat close to the button, the bracket is provided with a central through hole, and a receiving cavity for receiving a conductive structure is formed between the bracket and the fixing seat, the switch includes a connecting sleeve, the right end of the connecting sleeve is connected to the transition piece, and the other end of the connecting sleeve passes through the central through hole of the bracket and extends into the receiving cavity to be connected to the conductive structure.

[0011] In one embodiment of the switch, the conductive structure includes a spring and a seesaw, the spring is installed in the connecting sleeve, the spring is connected to the seesaw, a moving contact is provided on the seesaw, the transition piece can drive the connecting sleeve to swing, and the connecting sleeve drives the seesaw to swing through the spring to achieve engagement or separation of the moving contact and the static contact.

[0012] In one embodiment of the switch, a hole or a shaft for connecting the button is provided on the bracket, and a hole or a shaft for connecting the transition piece is provided on the bracket.

[0013] In one embodiment of the switch, the bracket includes a plate-shaped body, an enclosure surrounding the plate-shaped body, and two connecting plates arranged in the enclosed space of the enclosure, a hole or an axis for connecting the button is arranged on the enclosure, the two connecting plates are respectively located on opposite sides of the central through hole of the bracket, and a hole or an axis for connecting the transition piece is arranged on the connecting plates.

[0014] In one embodiment of the switch, the fixing seat is provided with an installation opening, the enclosure is located in the installation opening and cooperates with the side wall of the installation opening, the bracket also includes a positioning frame, the positioning frame is arranged on the outside of the enclosure, and the fixing seat is also provided with a positioning groove cooperating with the positioning frame, and the positioning groove is arranged on the outside of the installation opening.

[0015] The technical effect of the present application is that since the rotation angle of the transition piece is greater than the rotation angle of the key, the key only needs to rotate a small angle to make the moving contact reach the target position. Also, since the rotation center of the transition piece is located on the side of the key away from the supporting structure, the rotation angle of the key can be made smaller, thereby meeting the ultra-thin switch requirement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1Assembly diagram of an embodiment of the switch provided in this application;

[0017] Figure 2 For Figure 1 Exploded view of the switch shown;

[0018] Figure 3 Is a cross-sectional view of the switch when it is switched to the lower static contact conduction state, and the fixed seat is hidden in the figure;

[0019] Figure 4 Is a cross-sectional view of the switch when it is switched to the upper static contact conduction state, and the fixed seat is hidden in the figure;

[0020] Figure 5 Is a comparison diagram of the rotation angles of the rotation center of the transition piece in the front and rear sides of the button;

[0021] Figure 6 Is a three-dimensional view of the bracket;

[0022] Figure 7 Is a three-dimensional view of the transition piece and the connecting sleeve;

[0023] Figure 8 Is a side view of the transition piece and the connecting sleeve;

[0024] Figure 9 Is a cross-sectional view of the connection position between the connection protrusion of the transition piece and the connecting sleeve;

[0025] Figure 10 Is a three-dimensional view of the conductive structure;

[0026] The description of the reference numerals is as follows:

[0027] 1 Button, 11 Contact protrusion, 12 Round hole;

[0028] 2 Transition piece, 21 Connecting shaft, 22 Transition plate, 23 Connecting protrusion;

[0029] 3 Bracket, 31 Round shaft, 32 Connecting hole, 33 Central through hole, 34 Connecting structure, 35 Plate-shaped main body, 36 Enclosing plate, 37 Connecting plate, 38 Positioning frame;

[0030] 4 Fixed seat, 41 Mounting opening, 42 Positioning groove;

[0031] 5 Conductive structure, 51 Spring, 52 Rocker, 53 Moving contact, 54 Static contact, 55 Conductive sheet;

[0032] 6 Connecting sleeve. Detailed implementation manners

[0033] In order to enable those skilled in the art of this technical field to better understand the technical solution of this application, the following further elaborates on this application in conjunction with the accompanying drawings and specific implementation manners.

[0034] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, the switch provided by the present application includes a button 1, a transition member 2, and a support structure (including a bracket 3 and a fixed seat 4).

[0035] Both the button 1 and the transition member 2 are rotatably connected to the support structure. A part of the transition member 2 (transition plate 22) is located between the button 1 and the support structure. The transition member 2 can rotate with the rotation of the button 1. In the illustrated perspective, the rotation directions of the button 1 and the transition member 2 are in the front-back direction.

[0036] The rotation angle of the transition member 2 is greater than the rotation angle of the button 1. For example, when the button 1 rotates by 1°, the rotation angle of the transition member 2 may be 2°, 3°, etc.

[0037] The rotation center of the transition member 2 (O1 in the figure) and the rotation center of the button 1 (O2 in the figure) are respectively located on different sides of the button 1. The rotation center of the transition member 2 is located on the side of the button 1 away from the support structure (the front side of the button 1 in the illustrated perspective), and the rotation center of the transition member 2 is located outside the switch. The rotation center of the button 1 is located on the side of the button 1 close to the support structure (the rear side of the button 1 in the illustrated perspective), and the rotation center of the button 1 is located inside the switch.

[0038] Press the button 1 to rotate the button 1. When the button 1 rotates, the transition member 2 rotates accordingly. When the transition member 2 rotates, it drives the moving contact 53 of the conductive structure 5 to move to a position where it is combined with or separated from the static contact 54, thereby realizing the on-off control and switching control of the circuit.

[0039] Since the rotation angle of the transition member 2 is greater than the rotation angle of the button 1, the button 1 only needs to rotate a small angle to make the moving contact 53 reach the target position. Also, since the rotation center of the transition member 2 is located on the side of the button 1 away from the support structure, this can make the rotation angle of the button 1 smaller, thus meeting the requirement of the ultra-thin design of the switch.

[0040] Refer to Figure 5 for understanding. Figure 5In the figure, the vertical line indicates the key 1. The dot indicates the moving contact 53, which needs to move the target distance L to achieve the combination or separation with the static contact 54. The horizontal thick solid line indicates the initial position of the transition piece 2. The horizontal thin solid line indicates the position of the transition piece 2 after rotating a certain angle with point A as the rotation center, and point A is located on the side of the key 1 away from the support structure (that is, the front side of the key 1). The horizontal dotted line indicates the position of the transition piece 2 after rotating a certain angle with point B as the rotation center, and point B is located on the side of the key 1 close to the support structure (that is, the back side of the key 1). If the transition piece 2 rotates with point A as the rotation center, the moving contact 53 can reach the target position by rotating 3° from the initial position. If the transition piece 2 rotates with point B as the rotation center, the moving contact 53 can reach the target position by rotating 8° from the initial position. It can be seen that when the length of the transition piece 2 is the same, the required rotation angle of the transition piece 2 is smaller when the rotation center of the transition piece 2 is set on the front side of the key 1 than when the rotation center of the transition piece 2 is set on the back side of the key 1.

[0041] From another perspective, since the rotation center of transition piece 2 is set on the front side of key 1, the rotation angle of transition piece 2 is smaller than that of transition piece 2 when the rotation center is set on the rear side of key 1, when the rotation angle of key 1 is the same, according to the lever principle, the contact area between key 1 and transition piece 2 can be further away from the rotation center of transition piece 2. Therefore, the precision requirement of the contact area between key 1 and transition piece 2 can be reduced, thereby making production and processing more convenient.

[0042] From another perspective, if you want the transition piece 2 to rotate 3° with point B as the rotation center so that the moving contact 53 can reach the target position, you need to lengthen the front-to-back dimension of the transition piece 2. Therefore, when the rotation angle of the transition piece 2 is the same, setting the rotation center of the transition piece 2 on the front side of the button 1 is compared to setting the rotation center of the transition piece 2 on the rear side of the button 1. The required front-to-back dimension of the transition piece 2 is smaller. Since the transition piece 2 needs to extend into the interior of the fixing seat 4 on the rear side, the smaller the front-to-back dimension of the transition piece 2, the smaller the thickness (front-to-back dimension) requirement of the fixing seat 4. Therefore, setting the rotation center of the transition piece 2 on the front side of the button 1 can reduce the thickness of the fixing seat 4. The reduced thickness of the fixing seat 4 can make the wall installation operation of the switch more convenient.

[0043] Specifically, Figure 3 As shown, a side of the key 1 close to the transition piece 2 (the rear side of the key 1) is integrally provided with a resisting protrusion 11, and a resisting protrusion 11 is provided at the upper and lower parts of the key 1, and the key 1 pushes the transition piece 2 to rotate through the resisting protrusion 11. With this design, the number of parts of the switch is small, and the assembly and production are relatively convenient. Alternatively, a swingable transmission member can be provided between the key 1 and the transition piece 2, and when the key 1 rotates, the transmission member is driven to swing, and then the transmission member drives the transition piece 2 to rotate.

[0044] Specifically, as Figure 3 shown, one of the support structure and the button 1 is provided with a circular shaft 31, and the other is provided with a circular hole 12 that mates with the circular shaft 31. That is to say, the positions of the circular shaft 31 and the circular hole 12 can be swapped. The support structure and the button 1 are rotatably connected through the circular shaft 31 and the circular hole 12, and the center of the circular shaft 31 and the circular hole 12 is the rotation center of the button 1.

[0045] Specifically, as Figure 3 shown, one of the support structure and the transition member 2 is provided with a connecting shaft 21, and the other is provided with a connecting hole 32. That is to say, the positions of the connecting shaft 21 and the connecting hole 32 can be swapped. The connecting shaft 21 extends at least partially into the connecting hole 32, and the support structure and the transition member 2 are rotatably connected through the connecting shaft 21 and the connecting hole 32. An arc-shaped side wall is provided on one side of the connecting hole 32 close to the button 1 and / or on one side away from the button 1 (the front side and / or the rear side of the connecting hole 32 in the figure). When the transition member 2 rotates, the connecting shaft 21 slides along the arc-shaped side wall, and the arc-shaped side wall guides the connecting shaft 21, so that the transition member 2 rotates smoothly along a predetermined trajectory.

[0046] More specifically, an arc-shaped side surface can be provided on one side of the connecting shaft 21 close to the button 1 and / or on one side away from the button 1 (the front side and / or the rear side of the connecting shaft 21 in the figure). The arc-shaped side surface has the same radian as the arc-shaped side wall on the same side, the arc length is shorter than the arc-shaped side wall on the same side, and is arranged parallel to the arc-shaped side wall on the same side. In this way, the rotation of the transition member 2 can be made smoother.

[0047] In the figure, the cross-sectional shape of the connecting shaft 21 is arc-shaped, and the connecting hole 32 is an arc-shaped hole. Of course, in actual implementation, on the basis of ensuring that the connecting shaft 21 can slide in the connecting hole 32, the cross-sectional shape and cross-sectional size of the connecting shaft 21 and the shape and size of the connecting hole 32 can be appropriately adjusted.

[0048] More specifically, as Figure 2 shown, the support structure includes a bracket 3 and a fixed seat 4. The bracket 3 is assembled on one side of the fixed seat 4 close to the button 1 (the front side of the fixed seat 4 in the figure). The hole or shaft for connecting the button 1 and the hole or shaft for connecting the transition member 2 can be provided on the bracket 3 or on the fixed seat 4. If it is provided on the bracket 3, it is more convenient for the assembly of the switch.

[0049] More specifically, as Figure 6 shown, the bracket 3 includes a plate-shaped main body 35. A connecting structure 34 is provided on the rear side of the plate-shaped main body 35, and is snap-connected to the fixed seat 4 through the connecting structure 34. The bracket 3 further includes a surrounding plate 36 surrounding the plate-shaped main body 35 and a positioning frame 38 provided outside the surrounding plate 36. In the figure, there is one positioning frame 38 on each of the left and right sides of the surrounding plate 36. As Figure 2As shown, the fixed seat 4 is provided with an installation opening 41 and a positioning groove 42. The positioning groove 42 is arranged outside the installation opening 41. In the figure, a positioning groove 42 is provided on each of the left and right sides of the installation opening 41. After assembly, the surrounding plate 36 is located within the installation opening 41 and cooperates with the side walls of the installation opening 41, and the positioning frame 38 is located within the positioning groove 42. In this way, a reliable connection between the bracket 3 and the fixed seat 4 is achieved. Of course, the connection structure 34 between the bracket 3 and the fixed seat 4 is not limited to this, as long as a reliable connection can be achieved.

[0050] More specifically, as Figure 6 shown, a circular shaft 31 for connecting the button 1 is provided on each of the left and right side plates of the surrounding plate 36. Circular holes 12 for cooperating with the two circular shafts 31 are provided on the left and right sides of the button 1. Combining Figure 3 shown, a side opening is provided at the rear of the circular hole 12, and the circular shaft 31 is inserted into the circular hole 12 through this side opening.

[0051] More specifically, as Figure 6 shown, the bracket 3 further includes two connecting plates 37 arranged within the enclosed space of the surrounding plate 36. A central through hole 33 is provided at the center of the bracket 3. The two connecting plates 37 are located on the left and right sides of the central through hole 33, and a connection hole 32 for connecting the transition member 2 is provided on each of the two connecting plates 37. As Figure 7 shown, connecting shafts 21 are respectively provided on the left and right sides of the transition member 2. The middle parts of the left and right sides of the transition member 2 are concave inward and convex outward up and down, and the connecting shafts 21 are located within the concave inward region in the middle of the transition member 2. After assembly, the convex outward regions above and below on the left and right sides of the transition member 2 are respectively located above and below the connecting plate 37 on the same side.

[0052] In addition, in the figure, the fixed seat 4 is of an integral structure. In fact, it can also be an assembled structure formed by assembling a fixed frame and a base, and the base is assembled at the rear of the fixed frame. In the figure, both the button 1 and the fixed seat 4 are approximately rectangular. In fact, they can also be of other shapes. In the figure, mounting holes are provided at the four corner positions and the middle positions on the left and right sides of the fixed seat 4. During application, bolts pass through these mounting holes to fix the fixed seat 4 at the target position.

[0053] More specifically, a receiving cavity is formed between the bracket 3 and the fixed seat 4, and the conductive structure 5 of the switch is received within the receiving cavity. The switch includes a connecting sleeve 6. The front end of the connecting sleeve 6 is connected to the transition member 2, and the rear end of the connecting sleeve 6 passes through the central through hole 33 of the bracket 3 and extends into the receiving cavity to be connected to the conductive structure 5.

[0054] More specifically, the connecting sleeve 6 is allowed to have a degree of freedom of relative swing with respect to the transition member 2, that is to say, the connecting sleeve 6 can swing relative to the transition member 2, which is more conducive to reducing the rotation angle of the button 1. In the illustrated embodiment, as Figure 8 and Figure 9As shown, the transition member 2 includes a transition plate 22. A connecting protrusion 23 extending rearward is integrally provided on the rear side of the transition plate 22. The connecting sleeve 6 is sleeved on the outer periphery of the connecting protrusion 23. There is a certain gap between the inner periphery of the connecting sleeve 6 and the connecting protrusion 23, so that there is a degree of freedom for relative swing between the connecting sleeve 6 and the transition member 2.

[0055] More specifically, as Figure 10 shown, the conductive structure 5 includes a spring 51, a rocker 52 and a conductive sheet 55. The conductive sheet 55 is located at the rear side of the rocker 52 and supports the rocker 52. The spring 51 is installed in the connecting sleeve 6. The spring 51 is connected to the rocker 52. In the figure, the spring 51 is snap-fitted on the outer periphery of the convex portion on the rocker 52. A moving contact 53 is provided on the rocker 52. In the figure, a moving contact 53 is provided on each of the upper side and the lower side of the rocker 52. A stationary contact 54 is arranged above and below the rocker 52 respectively. As Figure 3 shown, when the upper part of the button 1 rotates backward, the upper part of the transition plate 22 rotates backward, the rear part of the connecting protrusion 23 rotates downward, driving the front part of the connecting sleeve 6 to swing upward and the rear part to swing downward, and then driving the front end of the rocker 52 to swing downward and the rear end to swing upward through the spring 51, so that the moving contact 53 on the upper side of the rocker 52 is combined with the stationary contact 54 above. As Figure 4 shown, when the lower part of the button 1 rotates backward, the lower part of the transition plate 22 rotates backward, the rear part of the connecting protrusion 23 rotates upward, driving the front part of the connecting sleeve 6 to swing downward and the rear part to swing upward, and then driving the front end of the rocker 52 to swing upward and the rear end to swing downward through the spring 51, so that the moving contact 53 on the lower side of the rocker 52 is combined with the stationary contact 54 below. In this way, dual control is realized. Of course, only one moving contact 53 can also be provided on the upper side or the lower side of the rocker 52, and only one stationary contact 54 can be arranged above or below the rocker 52 to realize single control.

[0056] The above uses specific examples to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present application, several improvements and modifications can still be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A switch, characterized in that, The switch comprises a button (1), a transition piece (2) and a support structure; the button (1) and the transition piece (2) are both rotatably connected to the support structure; a portion of the transition piece (2) is located between the button (1) and the support structure; the transition piece (2) can rotate along with the rotation of the button (1); and the rotation angle of the transition piece (2) is greater than the rotation angle of the button (1); and the rotation center of the transition piece (2) is located on a side of the button (1) away from the support structure.

2. The switch according to claim 1, wherein, The support structure and the button (1) are each provided with a circular shaft (31) and a circular hole (12) that matches the circular shaft (31). The support structure and the button (1) are rotatably connected via the circular shaft (31) and the circular hole (12).

3. The switch according to claim 2, characterized in that, The support structure and the transition piece (2) are provided with a connection hole (32) on one side and a connection shaft (21) on the other side, and the support structure and the key (1) are rotatably connected via the connection shaft (21) and the connection hole (32). The connection hole (32) is provided with an arc-shaped side wall on a side close to the key (1) and / or a side away from the key (1). When the transition piece (2) rotates, the connection shaft (21) slides along the arc-shaped side wall.

4. The switch according to claim 3, characterized in that, The connecting shaft (21) is provided with an arc-shaped side surface on a side close to the button (1) and / or a side away from the button (1); the arc-shaped side surface has the same arc angle as the arc-shaped side wall on the same side, a shorter arc length than the arc-shaped side wall on the same side, and is arranged parallel to the arc-shaped side wall on the same side.

5. The switch according to any one of claims 1-4, characterized in that, A side of the button (1) close to the transition piece (2) is integrally provided with a resistance protrusion (11), and the button (1) pushes the transition piece (2) to rotate via the resistance protrusion (11); or, a rotatable transmission member is provided between the button (1) and the transition piece (2), and the button (1) drives the transition piece (2) to rotate via the transmission member.

6. The switch according to any one of claims 1-4, characterized in that, The support structure comprises a bracket (3) and a fixing seat (4); the bracket (3) is assembled on a side of the fixing seat (4) close to the button (1); the bracket (3) is provided with a central through hole (33); a receiving cavity for receiving a conductive structure (5) is formed between the bracket (3) and the fixing seat (4); the switch comprises a connecting sleeve (6); one end of the connecting sleeve (6) is connected to the transition piece (2); the other end of the connecting sleeve (6) passes through the central through hole (33) and extends into the receiving cavity to be connected to the conductive structure (5).

7. The switch according to claim 6, wherein The conductive structure (5) comprises a spring (51) and a seesaw (52), wherein the spring (51) is installed in the connecting sleeve (6), the spring (51) is connected to the seesaw (52), a moving contact (53) is provided on the seesaw (52), the transition piece (2) can drive the connecting sleeve (6) to swing, and the connecting sleeve (6) drives the seesaw (52) to swing via the spring (51) to achieve engagement or separation of the moving contact (53) and the static contact (54).

8. The switch according to claim 6, characterized in that, The hole or shaft for connecting the button (1) is provided on the bracket (3), and the hole or shaft for connecting the transition member (2) is provided on the bracket (3).

9. The switch according to claim 8, characterized in that, The bracket (3) includes a plate-shaped main body (35), a surrounding plate (36) surrounding the plate-shaped main body (35), and two connecting plates (37) arranged in the enclosed space of the surrounding plate (36). The hole or shaft for connecting the button (1) is provided on the surrounding plate (36). The two connecting plates (37) are respectively located on opposite sides of the central through hole (33) of the bracket (3), and the hole or shaft for connecting the transition member (2) is provided on the connecting plate (37).

10. The switch according to claim 9, wherein, The fixing base (4) is provided with an installation opening (41). The surrounding plate (36) is located in the installation opening (41) and cooperates with the side wall of the installation opening (41). The bracket (3) further includes a positioning frame (38). The positioning frame (38) is arranged on the outer side of the surrounding plate (36). The fixing base (4) is further provided with a positioning groove (42) cooperating with the positioning frame (38). The positioning groove (42) is arranged on the outer side of the installation opening (41).

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