Push switch structure

Abstract

The utility model discloses a push switch structure, which comprises an outer shell, a key body and a microswitch, the key body is provided with a guide part which is inserted into the outer shell in a sliding manner, the bottom end, which is inserted into the outer shell, of the guide part is provided with an accommodating cavity groove, and the accommodating cavity groove is internally provided with a touch partition plate which is far away from a groove opening of the accommodating cavity groove; a containing cavity groove is formed in the bottom end of the guide part, the microswitch is installed in the outer shell and extends upwards into the containing cavity groove, the touch partition plate and the microswitch are oppositely arranged in the pressing and sliding direction of the key body, and the microswitch is arranged in the containing cavity groove in the bottom end of the guide part instead of the position below the key body. According to the push switch structure, the touch partition plate in the containing cavity groove makes contact with the microswitch to achieve the key function, on the premise that the overall size of the key body is not increased, the guide part of the key body is relatively prolonged, the internal space utilization rate of the push switch structure is increased, and the shake amount of the key body and the size of the push switch structure can be reduced.

Description

Technical Field

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

[0002] Push switches are currently used in many fields. In related technologies, the push switch keys cannot avoid key shaking due to the existence of their own guide structure. In order to reduce the key shaking and ensure the user feel, the push switch keys need to have a longer key movement guide distance, which makes the key size along the pressing direction larger. Utility Model Content

[0003] The utility model provides a push switch structure, which prolongs the guide distance and reduces the shaking amount of the key without increasing the overall size of the key.

[0004] According to an embodiment of the utility model, a push switch structure includes: an outer shell, a button body and a micro switch, the button body is provided with a guide portion that is slidably inserted into the outer shell, the bottom end of the guide portion inserted into the outer shell is provided with a accommodating cavity groove, the accommodating cavity groove is provided with a touch partition away from the notch of the accommodating cavity groove; the micro switch is installed in the outer shell, the micro switch extends upward into the accommodating cavity groove, and the touch partition plate and the micro switch are arranged opposite to each other along the pressing and sliding direction of the button body.

[0005] According to some embodiments of the utility model, a support frame is provided in the outer shell, the micro switch is installed on the top of the support frame, and the support frame is sleeved in the accommodating cavity.

[0006] According to some embodiments of the utility model, the outer shell is provided with a pressing groove that slidably cooperates with the guide portion, a bottom cover is provided at the bottom of the pressing groove, and the support frame is installed on the bottom cover.

[0007] According to some embodiments of the present invention, a limiting step groove is provided at the top of the pressing groove for limiting the position corresponding to the top edge of the button body.

[0008] According to some embodiments of the utility model, a PCB board on which the micro switch is fixedly mounted is provided on the top of the support.

[0009] According to some embodiments of the utility model, the bottom cover is provided with a first through hole, the support frame is provided with a second through hole corresponding to the first through hole, and the PCB board is provided with a wiring harness passing through the second through hole and the first through hole.

[0010] According to some embodiments of the utility model, an LED lamp is disposed on the upper surface of the PCB board, the touch partition is provided with a light-transmitting hole corresponding to the LED lamp, and the top of the button body is a light-transmitting component.

[0011] According to some embodiments of the present invention, the top surface of the button body is arranged flush with the top surface of the outer shell.

[0012] According to some embodiments of the present invention, an extension sleeve is detachably connected to the lower end of the button body, and the touch partition is integrally arranged with the extension sleeve.

[0013] According to some embodiments of the utility model, a first slot is provided at the lower end of the button body, and a second slot engaged with the first slot is provided at the upper end of the extension sleeve.

[0014] The push switch structure according to the embodiment of the utility model has at least the following beneficial effects:

[0015] The utility model arranges the micro switch in the accommodating cavity groove at the bottom end of the guide part, rather than in the position below the key body, and realizes the key function through the contact between the touch partition in the accommodating cavity groove and the micro switch. Without increasing the overall size of the key body, the guide part of the key body is relatively extended, the internal space utilization rate of the push switch structure is improved, which is beneficial to reduce the shaking amount of the key body and reduce the size of the push switch structure.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0018] Figure 1 It is a cross-sectional view of a conventional push switch structure;

[0019] Figure 2 This is a schematic diagram for calculating the amount of shaking of a key;

[0020] Figure 3 It is a cross-sectional view of the push switch structure of the utility model;

[0021] Figure 4 It is an exploded view of the push switch structure of the utility model.

[0022] Figure Number:

[0023] Button 100;

[0024] Housing 200;

[0025] Micro switch 400;

[0026] Outer shell 500; pressing groove 510; limiting step groove 511;

[0027] Button body 600; guide portion 610; accommodating cavity groove 611; touch partition 612; light-transmitting hole 613; top plate 620; limiting step structure 630; first card slot 640;

[0028] Support frame 700; PCB board 710; second through hole 720;

[0029] Bottom cover 800; first through hole 810;

[0030] Extension sleeve 900; second slot 910. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0034] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0035] like Figure 1 As shown in FIG. 1 , a certain guide distance X2 is formed between the button 100 and the housing 200. The rib plate on the button 100 contacts the micro switch 400 on the PCB board 710 in the pressed state to realize the switch triggering. The distance between the surface of the button 100 and the limiting structure of the housing 200 is X1. Figure 2 As shown, the clearance between the key 100 and the housing 200 is X3. If the key 100 is approximated as a volume without considering the thickness, the shaking amount of the key can be calculated:

[0036] ΔX=1 / 2*X3+1 / 2*X3*(X1+X2) / X2=X3(1+X1 / (2*X2));

[0037] It can be seen that reducing the ratio of X1 to X2 can reduce the amount of key shaking. In order to reduce this value, the traditional push switch extends the size of X2, which will result in a larger switch size.

[0038] Furthermore, the utility model proposes a new push switch structure, such as Figure 3 and Figure 4 As shown, the push switch structure of the present utility model includes an outer shell 500, a button body 600 and a micro switch 400. The button body 600 is provided with a guide portion 610, and the guide portion 610 is extended up and down. In some other embodiments, according to the pressing direction of the button body 600, the guide portion 610 can be extended left and right or front and back. This embodiment is described by taking the guide portion 610 extending up and down as an example.

[0039] The guide portion 610 of this embodiment is disposed at the lower portion of the button body 600 , and the guide portion 610 is slidably inserted into the outer shell 500 , so that the button body 600 can slide up and down relative to the outer shell 500 .

[0040] Among them, the outer shell 500 of this embodiment is provided with a pressing groove 510 that slidably cooperates with the guide part 610. The pressing groove 510 is extended up and down. The matching clearance between the pressing groove 510 and the guide part 610 is X3. In order to make the button body 600 press smoothly, X3 is generally a fixed value.

[0041] A limiting step groove 511 corresponding to the top edge of the button body 600 is provided at the top of the pressing groove 510. A top plate 620 is provided at the top of the button body 600 of this embodiment. The four sides of the top plate 620 extend out toward the four sides of the guide part 610 to form a limiting step structure 630. The limiting step structure 630 matches the limiting step groove 511 for limiting, wherein the distance between the limiting step groove 511 and the top surface of the top plate 620 is X1.

[0042] The guide portion 610 of this embodiment is a columnar structure, the cross section of the guide portion 610 is rectangular, and the cross section of the pressing groove 510 is also rectangular. In some other embodiments, the guide portion 610 and the pressing groove 510 may be cylindrical structures.

[0043] An accommodating cavity groove 611 is disposed at the bottom end of the guide portion 610 , wherein the notch of the accommodating cavity groove 611 is disposed downward, and the accommodating cavity groove 611 also extends in the up-down direction in the guide portion 610 .

[0044] A touch partition 612 is arranged in the accommodating cavity groove 611. The touch partition 612 of this embodiment is relatively fixed on the inner wall of the accommodating cavity groove 611. The height of the touch partition 612 is determined according to actual conditions. The touch partition 612 of this embodiment is at a certain distance from the bottom of the accommodating cavity groove 611, and the micro switch 400 is arranged in the outer shell 500. The micro switch 400 of this embodiment extends upward into the accommodating cavity groove 611, and the micro switch 400 is arranged below the touch partition 612. When the button body 600 is pressed down, the touch partition 612 contacts the micro switch 400 to realize switch triggering, wherein the guide portion 610 guides the button body 600.

[0045] In this embodiment, the micro switch 400 is arranged in the accommodating cavity 611 at the bottom end of the guide portion 610, rather than at a position below the bottom of the button body 600, and the key function is realized by the contact between the trigger partition 612 in the accommodating cavity 611 and the micro switch 400. Without increasing the overall size of the button body 600, the guide portion 610 of the button body 600 is relatively extended, that is, the guide distance X2 between the lower end of the guide portion 610 and the limit step groove 511 is extended, thereby improving the internal space utilization rate of the push switch structure, which is beneficial to reducing the shaking amount of the button body 600 and reducing the size of the push switch structure.

[0046] If the shaking amount of the push switch of the present invention is kept consistent with that of the current push switch, the size of the push switch of the present invention is significantly reduced; if the size of the push switch of the present invention is kept consistent with that of the current push switch, the shaking amount of the push switch of the present invention is reduced.

[0047] Regarding the installation and fixation of the micro switch 400, in this embodiment, a support frame 700 is provided in the outer shell 500, and a PCB board 710 is provided on the top of the support frame 700. The micro switch 400 is fixed on the upper surface of the PCB board 710, and the support frame 700 is sleeved in the accommodating cavity groove 611. The PCB board 710 is lifted by the support frame 700 to extend the guiding distance, thereby reducing the size and shaking amount.

[0048] The PCB board 710 of this embodiment is attached to the top of the support frame 700 by glue, or fixed by screws.

[0049] Furthermore, a bottom cover 800 is provided at the bottom of the pressing groove 510, and the support frame 700 is installed on the upper surface of the bottom cover 800. The bottom cover 800 of this embodiment is clamped on the bottom of the pressing groove 510, and the support frame 700 is also clamped on the bottom cover 800 to achieve a quick installation effect.

[0050] In this embodiment, a first through hole 810 is provided on the bottom cover 800, and a second through hole 720 corresponding to the first through hole 810 is provided on the support frame 700. The wiring harness of the PCB board 710 extends downward through the second through hole 720 and the first through hole 810 to facilitate wiring.

[0051] Furthermore, an LED lamp 730 is installed on the upper surface of the PCB board 710, and the touch partition 612 is provided with a light-transmitting hole 613 corresponding to the LED lamp 730. The top plate 620 on the top of the button body 600 of this embodiment is a light-transmitting component, and the switch backlight effect is achieved by the LED lamp 730, wherein the top plate 620 can be a transparent plate or a colored light-transmitting plate.

[0052] In addition, the top surface of the button body 600 of this embodiment is arranged flush with the top surface of the outer shell 500 , which is more aesthetically pleasing.

[0053] To facilitate processing and installation, the lower end of the button body 600 is detachably connected to an extension sleeve 900, and the touch partition 612 is integrally arranged with the extension sleeve 900. The accommodating cavity groove 611 of this embodiment is formed in the lower part of the extension sleeve 900 and the button body 600, and the extension sleeve 900 and the lower part of the button body 600 constitute a guide part 610.

[0054] In this embodiment, a first card slot 640 is provided at the lower end of the button body 600, and a second card slot 910 engaged with the first card slot 640 is provided at the upper end of the extension sleeve 900. The extension sleeve 900 is installed on the lower end of the button body 600 by snapping. The button body 600 and the extension sleeve 900 are connected by snapping to divide the accommodating cavity 611 into two, and the PCB board 710 is arranged in the cavity below the touch partition 612.

[0055] In some embodiments, the extension sleeve 900 and the button body 600 may be an integral structure.

[0056] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A push switch structure, characterized in that: include: outer shell; The button body is provided with a guide portion which is slidably inserted into the outer shell, the bottom end of the guide portion inserted into the outer shell is provided with a receiving cavity groove, and the receiving cavity groove is provided with a touch partition away from the notch of the receiving cavity groove; A micro switch is installed in the outer shell, the micro switch extends upward into the accommodating cavity, and the touch partition and the micro switch are arranged opposite to each other along the pressing and sliding direction of the button body.

2. The push switch structure according to claim 1, characterized in that: A support frame is provided in the outer shell, the micro switch is installed on the top of the support frame, and the support frame is sleeved in the accommodating cavity.

3. The push switch structure according to claim 2, characterized in that: The outer shell is provided with a pressing groove which is slidably matched with the guide part, a bottom cover is provided at the bottom of the pressing groove, and the support frame is installed on the bottom cover.

4. The push switch structure according to claim 3, characterized in that: The top of the pressing groove is provided with a limiting step groove corresponding to the limiting position of the top edge of the button body.

5. The push switch structure according to claim 3, characterized in that: A PCB board on which the micro switch is fixedly mounted is provided on the top of the support.

6. The push switch structure according to claim 5, characterized in that: The bottom cover is provided with a first through hole, the support frame is provided with a second through hole corresponding to the first through hole, and the PCB board is provided with a wiring harness passing through the second through hole and the first through hole.

7. The push switch structure according to claim 5, characterized in that: An LED lamp is arranged on the upper surface of the PCB board, a light-transmitting hole corresponding to the LED lamp is arranged on the touch partition, and the top of the button body is a light-transmitting component.

8. The push switch structure according to claim 3, characterized in that: The top surface of the button body is arranged flush with the top surface of the outer shell.

9. The push switch structure according to claim 1, characterized in that: The lower end of the button body is detachably connected with an extension sleeve, and the touch partition is integrally arranged with the extension sleeve.

10. The push switch structure according to claim 9, characterized in that: A first slot is disposed at the lower end of the button body, and a second slot engaged with the first slot is disposed at the upper end of the extension sleeve.

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