A light touch switch with excellent contact performance

Abstract

The utility model discloses a kind of light touch switches with excellent contact performance, comprising: main casing, the accommodating cavity for disposing each component is formed on main casing, the first through-hole of first sealing member is equipped in first through-hole, which is communicated with the accommodating cavity, above main casing;With the cover body of main casing bonding;First pole piece and second pole piece, the first pole piece and second pole piece are all inserted in main casing;U-shaped elastic member installed in the accommodating cavity, the U-shaped elastic member includes third connecting portion, U-shaped bending portion and fourth connecting portion connected in sequence, the fourth connecting portion is fixedly connected with the second pole piece, and the third connecting portion is placed below the first pole piece and is in contact with the first pole piece;Button is inserted in the first through-hole on.The utility model effectively improves the waterproof and dustproof performance of switch, and simultaneously realizes long-lasting durable, response accurate technical effect.

Description

Technical Field

[0001] This utility model relates to the field of tactile switch technology, and in particular to a tactile switch with excellent contact performance. Background Technology

[0002] A tactile switch, also known as a push-button switch, is used to close the circuit by applying pressure in the direction of operation. When the pressure is released, the switch opens. Its internal structure relies on the force change of a metal spring to achieve on / off switching. Currently, the metal spring is a circular spring with an upward convex center. The metal spring connects to the electrodes / pins on both sides to achieve opening and closing. A button is located on the top cover. Pressing the button compresses the middle of the metal spring, causing its two ends to deform and detach from the contact position with the electrodes, thus achieving the disconnection function. At the same time, the curved metal piece makes a crisp sound during the deformation process, serving as an indicator. However, current traditional switches have poor waterproof and dustproof performance, allowing water or dust and other impurities to enter the reservoir through the gap between the top and bottom covers in daily life, corroding the electrodes and metal pieces and affecting their service life. Utility Model Content

[0003] The purpose of this invention is to overcome the aforementioned deficiencies in the prior art and provide a tactile switch with excellent contact performance. This invention effectively improves the switch's waterproof and dustproof performance, while achieving long-lasting durability and precise response, significantly enhancing the product's operational stability and reliability in harsh environments such as humid and dusty conditions.

[0004] To achieve the above objectives, this utility model provides a tactile switch with excellent contact performance, comprising:

[0005] The main housing has a cavity for housing various components. A first through hole communicating with the cavity is opened on the top of the main housing, and a first sealing element is provided in the first through hole.

[0006] A cover body is bonded to the main housing, and the cover body seals the receiving cavity;

[0007] The first electrode and the second electrode are both inserted into the main housing, such that one end of the first electrode and the second electrode are placed inside the receiving cavity, and the other end of the first electrode and the second electrode are placed outside the main housing.

[0008] The U-shaped elastic element installed in the receiving cavity includes a third connecting part, a U-shaped bending part and a fourth connecting part connected in sequence. The fourth connecting part is fixed to the second electrode plate, and the third connecting part is located below the first electrode plate and abuts against the first electrode plate.

[0009] A button is inserted into the first through hole, the lower end of the button is connected to the first connecting part, and a return spring is provided on the button.

[0010] Furthermore, it also includes a sound-emitting component. A sound-emitting support is provided on the receiving cavity, and the sound-emitting component is inserted into the sound-emitting support, placing the sound-emitting component below the button so that the button can touch the sound-emitting component when pressed. The sound-emitting component enables a sound to be emitted each time the button is pressed, thereby providing clear operational feedback and enhancing the user experience.

[0011] Furthermore, the sound-generating component is a press-generating device or a sound-generating spring. The sound-generating component has a first locking edge, and the sound-generating support has a first locking groove that mates with the first locking edge. The engagement of the first locking edge and the first locking groove ensures stable installation of the sound-generating component, guaranteeing a crisp and consistent sound when pressed, thus enhancing the product's quality.

[0012] Furthermore, a second through hole is provided on the third connecting part. The button includes a pressing part, a locking part, a limiting part, an abutting part, and a triggering part. The diameter of the triggering part is smaller than that of the abutting part, and the triggering part passes through the second through hole. The diameter of the abutting part is larger than that of the second through hole. The return spring is attached to the abutting part, and both ends of the return spring abut against the lower ends of the third connecting part and the limiting part. The locking part passes through the first sealing member. When the button is pressed by an external force, the abutting part pushes the third connecting part of the U-shaped elastic member downward, causing the U-shaped bending part to undergo elastic deformation. At this time, the third connecting part separates from the first electrode, thus disconnecting the circuit. When the external force is removed, the return spring releases its elastic potential energy, pushing the button upward to reset. The U-shaped elastic member returns to its original shape, causing the third connecting part to reset upward, maintaining contact with the first electrode, so that the circuit remains conductive.

[0013] Furthermore, the first seal is a silicone seal, and the first seal is a hollow cone structure. The inner diameter of the first seal matches the snap-fit ​​portion and is sleeved onto the snap-fit ​​portion. The diameter of the limiting portion is larger than the diameter of the snap-fit ​​portion, so that the lower end face of the first seal abuts against the upper end face of the limiting portion. The outer diameter of the upper end of the first seal matches the diameter of the pressing portion. The first seal fits tightly against the periphery of the first through hole on the housing, achieving waterproof and dustproof protection. When the button is pressed, the pressing portion drives the snap-fit ​​portion downward, and the first seal is compressed and deformed, ensuring that the sealing performance is not lost during movement, thus improving the product's environmental adaptability and service life.

[0014] Furthermore, a second locking edge extends from the lower outer edge of the first seal, and a third locking edge extends from the end of the first through hole toward the axis to prevent the second locking edge from falling off. This prevents the first seal from shifting or coming off during long-term reciprocating motion, ensuring the long-term reliability of the sealing structure.

[0015] Furthermore, the button is provided with a strip-shaped second through groove that passes through the latching part and the limiting part, and a first limiting post is provided on the inner side of the cover body for insertion into the strip-shaped second through groove. The first limiting post cooperates with the second through groove to restrict the button to move only up and down, ensuring a smooth and stable pressing action.

[0016] Furthermore, a first insertion groove is formed on one side of the main housing. The first electrode includes a first connecting portion and a first external connecting portion. The first electrode is inserted into the first insertion groove, with the first connecting portion placed inside the receiving cavity and the first external connecting portion placed outside the main housing. A first connecting terminal is fixedly connected to the first connecting portion, and a second connecting terminal is fixedly connected to the third connecting portion. The first and second connecting terminals are arranged facing each other and abut against each other under the action of the U-shaped bend. This achieves a snap-fit ​​installation of the first electrode while maintaining a stable and reliable electrical connection. During assembly, the first electrode only needs to be pushed in along the first insertion groove until the first connecting terminal and the second connecting terminal contact and are tightly fitted by the elastic action of the U-shaped bend. During disassembly, it can be separated by applying reverse force, greatly improving assembly efficiency and maintenance convenience.

[0017] Furthermore, a second insertion slot is formed on one side of the main housing. The second electrode includes a second connecting portion and a second external connecting portion. The second electrode is inserted into the second insertion slot. The fourth connecting portion is fixedly connected to the second connecting portion. A first auxiliary seat is provided on the receiving cavity. A first supporting groove for supporting the second connecting portion is provided on the first auxiliary seat. The first auxiliary seat is placed below the sound-generating support. The distance between the sound-generating support and the first supporting groove is equal to the sum of the thicknesses of the second connecting portion and the fourth connecting portion. The distance ensures that the second electrode does not interfere with the sound-generating support after installation, while maintaining the stability of the electrical connection. When the second electrode is inserted into the second insertion slot, the second connecting portion slides in along the first supporting groove and is supported by it, avoiding stress concentration caused by suspension and extending service life. The fourth connecting portion is fixed to the second connecting portion by welding or riveting, ensuring a reliable conductive path. The overall structure is compact, facilitating automated assembly and improving production efficiency and product consistency.

[0018] Furthermore, a first mounting groove covering the outlet of the first insertion groove and a second mounting groove covering the outlet of the second insertion groove are provided on the outer side of the main housing. A second sealing element and a third sealing element are respectively provided on the first mounting groove and the second mounting groove. This effectively prevents external moisture and dust from entering from the outlet of the insertion groove, further improving the product's environmental adaptability and safety performance.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] This invention, through its multi-level limiting and plug-in structure design, achieves precise guidance of button movement and rapid installation of electrode plates, significantly improving assembly efficiency and connection reliability. The cooperation between the seal and the mounting groove effectively prevents the intrusion of external pollutants, enhancing the product's stability in humid and dusty environments. The compact structure and reasonable stress distribution among the components reduce manufacturing costs and improve maintenance convenience, making it suitable for large-scale automated production and possessing significant industrial application value. Attached Figure Description

[0021] To more clearly illustrate the technology in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a tactile switch with excellent contact performance according to this utility model;

[0023] Figure 2 It is along Figure 1 Schematic diagram of the cross section of line AA;

[0024] Figure 3 yes Figure 1 A structural diagram with the cover removed;

[0025] Figure 4 This is a schematic diagram of the main shell structure of this utility model;

[0026] Figure 5 This is a schematic diagram of the main shell of this utility model from another perspective;

[0027] Figure 6 This is a structural schematic diagram of the sound-generating component of this utility model;

[0028] Figure 7 This is a structural schematic diagram of the U-shaped elastic element of this utility model;

[0029] Figure 8This is a structural schematic diagram of the button of this utility model;

[0030] Figure 9 This is a schematic diagram of the structure of the first sealing element of this utility model;

[0031] Figure 10 This is a schematic diagram of the structure of the cover of this utility model.

[0032] The diagram includes:

[0033] 1. Main housing; 11. Receiving cavity; 12. First through hole; 121. Third snap-fit ​​edge; 13. Sound-generating support; 131. First snap-fit ​​groove; 14. First insertion groove; 15. Second insertion groove; 16. First auxiliary seat; 161. First support groove; 17. First mounting groove; 18. Second mounting groove; 2. Cover; 21. First limiting post; 3. First pole piece; 31. First connecting part; 32. First external part; 33. First connecting terminal; 4. Second pole piece; 41. Second connecting part; 42. 43. Second external part; 54. Rivet; 6. U-shaped elastic element; 7. Third connecting part; 8. Second through hole; 9. U-shaped bend; 10. Fourth connecting part; 11. Second connecting terminal; 12. Sound-emitting element; 13. First snap-fit ​​edge; 14. Button; 15. Reset spring; 16. Pressing part; 17. Snap-fit ​​part; 18. Limiting part; 19. Strip-shaped second through groove; 10. Abutting part; 10. Triggering part; 11. First sealing element; 12. Second snap-fit ​​edge; 13. Second sealing element; 14. Third sealing element. Detailed Implementation

[0034] The technology of this embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiment is one embodiment of the present invention, and not all embodiments thereof. Based on this embodiment of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0035] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0036] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second", such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0037] Please see Figures 1 to 10 The present invention provides a tactile switch with excellent contact performance, including a main housing 1, a cover 2, a first electrode 3, a second electrode 4, a U-shaped elastic element 5, a sound-emitting element 6, and a button 7;

[0038] like Figure 1 Only Figure 5 As shown, a receiving cavity 11 for accommodating various components is formed on the main housing 1. The cover 2 is directly bonded to one side of the main housing 1 with sealant or the like to seal the receiving cavity 11. A first through hole 12 communicating with the receiving cavity 11 is opened on the top of the main housing 1. A first sealing element 8 is provided in the first through hole 12. The button 7 is inserted into the first through hole 12 so that the first sealing element 8 is sleeved on the button 7.

[0039] A sound-generating support 13 is provided on the receiving cavity 11. The sound-generating element 6 is inserted into the sound-generating support 13, so that the sound-generating element 6 is positioned below the button 7. When the button 7 is pressed, it can touch the sound-generating element 6. In this embodiment, the sound-generating element 6 is a press generator or a sound-generating spring. Its specific installation structure is as follows: the sound-generating element 6 is provided with a first locking edge 61, and the sound-generating support 13 is provided with a first locking groove 131 that cooperates with the first locking edge 61. During assembly, the first locking edge 61 is directly inserted into the first locking groove 131. When the cover 2 is fixed, the first locking groove 131 can be sealed, thereby ensuring that the sound-generating element 6 will not fall off due to vibration or impact during use.

[0040] like Figure 2 and Figure 3 As shown, the U-shaped elastic element 5 is installed inside the receiving cavity 11. The U-shaped elastic element 5 includes a third connecting part 51, a U-shaped bending part 52, and a fourth connecting part 53 connected in sequence. The first pole piece 3 and the second pole piece 4 are both inserted into the main housing 1, such that one end of the first pole piece 3 and the second pole piece 4 are both placed inside the receiving cavity 11, and the other end of the first pole piece 3 and the second pole piece 4 are both placed outside the main housing 1; specifically, as shown... Figure 4 As shown, a first insertion groove 14 is formed on one side of the main housing 1. The first electrode 3 includes a first connecting part 31 and a first external connecting part 32. The first electrode 3 is inserted into the first insertion groove 14, so that the first connecting part 31 is placed inside the receiving cavity 11 and the first external connecting part 32 is placed outside the main housing 1.

[0041] A second insertion groove 15 is formed on one side of the main housing 1. The second electrode 4 includes a second connecting part 41 and a second external connecting part 42. The second electrode 4 is inserted into the second insertion groove 15. The fourth connecting part 53 overlaps with the second connecting part 41 and is fixedly connected, specifically by riveting with rivets 43, or by welding. It is sufficient to ensure that the fourth connecting part 53 and the second connecting part 41 are tightly overlapped and fixed, thus maintaining good contact between the fourth connecting part 53 and the second connecting part 41 and achieving conductivity. Figure 4 As shown, a first auxiliary seat 16 is provided on the receiving cavity 11, and a first supporting groove 161 for supporting the second connecting part 41 is provided on the first auxiliary seat 16. The first auxiliary seat 16 is placed below the sound-emitting support 13. The distance between the sound-emitting support 13 and the first supporting groove 161 is equal to the sum of the thicknesses of the second connecting part 41 and the fourth connecting part 53. This can further improve the firmness of the connection between the fourth connecting part 53 and the second connecting part 41, so that the two maintain good contact. At the same time, the first auxiliary seat 16 can provide a support point for the U-shaped elastic member 5, so that it maintains good elastic performance.

[0042] A first connecting terminal 33 is fixedly connected to the first connecting part 31, and a second connecting terminal 54 is fixedly connected to the third connecting part 51. The first connecting terminal 33 and the second connecting terminal 54 are arranged facing each other. When the U-shaped elastic member 5 is installed in the first support groove 161, the third connecting part 51 is just below the first electrode 3. Under the action of the U-shaped bending part 52, they abut against each other, so that the third connecting part 51 maintains an upward pressure, so that the first connecting terminal 33 and the second connecting terminal 54 remain in contact, realizing the conduction between the U-shaped elastic member 5 and the first electrode 3, forming a normally closed contact structure.

[0043] In a preferred embodiment, a first mounting groove 17 covering the outlet of the first insertion groove 14 and a second mounting groove 18 covering the outlet of the second insertion groove 15 are provided on the outer side of the main housing 1. A second sealing element 9 and a third sealing element 91 are respectively provided on the first mounting groove 17 and the second mounting groove 18. Both the second sealing element 9 and the third sealing element 91 are block-shaped sealing elements made of silicone material. This effectively prevents external moisture and dust from entering from the outlet of the insertion groove, further improving the product's environmental adaptability and safety performance.

[0044] like Figure 1As shown, the lower end of button 7 in this embodiment is connected to the first connecting part 31. A return spring 71 is provided on button 7. Specifically, a second through hole 511 is provided on the third connecting part 51. Button 7 in this embodiment includes a pressing part 72, a locking part 73, a limiting part 74, an abutting part 75, and a trigger part 76. The diameter of the trigger part 76 is smaller than that of the abutting part 75. The trigger part 76 passes through the second through hole 511 and is positioned above the sound-emitting element 6. The diameter of the abutting part 75 is larger than that of the second through hole 511. The return spring 71 is hooked onto the abutting part 75. Both ends of the return spring 71 are connected to the third connecting part 51 and the... The lower end of the limiting part 74 abuts against the first sealing member 8, and the snap-fit ​​part 73 passes through the first sealing member 8. When the button 7 is pressed by an external force, the abutting part 75 pushes the third connecting part 51 of the U-shaped elastic member 5 downward, causing the U-shaped bending part 52 to undergo elastic deformation. At this time, the third connecting part 51 separates from the first electrode 3, thereby disconnecting the circuit. During the downward movement of the button 7, the trigger part 76 will gradually press down to deform the sound-emitting member 6 and emit a sound, indicating that the disconnection is complete. When the external force is removed, the reset spring 71 releases its elastic potential energy, pushes the button 7 upward to reset, and the U-shaped elastic member 5 returns to its original shape, driving the third connecting part 51 upward to reset, maintaining contact with the first electrode 3, so that the circuit remains conductive.

[0045] Such as 5 and Figure 9 As shown, in this embodiment, the first sealing element 8 is a silicone sealing element. The first sealing element 8 is a hollow conical structure. The inner diameter of the first sealing element 8 matches the snap-fit ​​part 73 and is sleeved on the snap-fit ​​part 73. The diameter of the limiting part 74 is larger than the diameter of the snap-fit ​​part 73, so that the lower end face of the first sealing element 8 abuts against the upper end face of the limiting part 74. The outer diameter of the upper end of the first sealing element 8 matches the diameter of the pressing part 72. The outer edge of the lower end of the first sealing element 8 extends to form a second snap-fit ​​edge 81. A third snap-fit ​​edge 121 extends from the end of the first through hole 12 toward the axis. Preferably, during assembly, the third snap-fit ​​edge 121 is bonded and fixed to the second snap-fit ​​edge 81 by sealant or the like, to prevent the second snap-fit ​​edge 81 from falling off. The first seal 8 fits tightly against the periphery of the first through hole 12 on the housing to achieve waterproof and dustproof protection. When the button 7 is pressed, the pressing part 72 drives the locking part 73 to move downward, and the first seal 8 is compressed and deformed to ensure that the sealing performance is not lost during the movement, thereby improving the environmental adaptability and service life of the product.

[0046] In some preferred methods, such as Figure 2 , Figure 8 and Figure 10As shown, the button 7 has a strip-shaped second through groove 741 that passes through the latching part 73 and the limiting part 74. The inner side of the cover 2 has a first limiting post 21 for insertion into the strip-shaped second through groove 741. The first limiting post 21 cooperates with the strip-shaped second through groove 741 to restrict the button 7 to move only up and down, ensuring a smooth and stable pressing action.

[0047] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A tactile switch with excellent contact performance, characterized in that, include: The main housing (1) has a cavity (11) for accommodating various components. A first through hole (12) communicating with the cavity (11) is opened on the top of the main housing (1). A first sealing element (8) is provided in the first through hole (12). A cover (2) is bonded to the main housing (1), and the cover (2) seals the receiving cavity (11). The first electrode (3) and the second electrode (4) are both inserted into the main housing (1), such that one end of the first electrode (3) and the second electrode (4) are placed inside the receiving cavity (11), and the other end of the first electrode (3) and the second electrode (4) are placed outside the main housing (1). The U-shaped elastic element (5) installed in the receiving cavity (11) includes a third connecting part (51), a U-shaped bending part (52) and a fourth connecting part (53) connected in sequence. The fourth connecting part (53) is fixedly connected to the second electrode (4). The third connecting part (51) is located below the first electrode (3) and abuts against the first electrode (3). A button (7) is inserted into the first through hole (12). The first electrode (3) includes a first connecting part (31). The lower end of the button (7) is connected to the first connecting part (31). A reset spring (71) is provided on the button (7).

2. The tactile switch with excellent contact performance according to claim 1, characterized in that, It also includes a sound-emitting element (6), and a sound-emitting support (13) is provided on the receiving cavity (11). The sound-emitting element (6) is inserted into the sound-emitting support (13) so that the sound-emitting element (6) is placed below the button (7) and the button (7) can touch the sound-emitting element (6) when it is pressed.

3. A tactile switch with excellent contact performance according to claim 2, characterized in that, The sound-generating component (6) is a press generator or a sound-generating spring. The sound-generating component (6) is provided with a first locking edge (61), and the sound-generating support (13) is provided with a first locking groove (131) that cooperates with the first locking edge (61).

4. A tactile switch with excellent contact performance according to claim 2, characterized in that, A second through hole (511) is provided on the third connecting part (51). The button (7) includes a pressing part (72), a locking part (73), a limiting part (74), an abutting part (75), and a trigger part (76). The diameter of the trigger part (76) is smaller than that of the abutting part (75). The trigger part (76) passes through the second through hole (511). The diameter of the abutting part (75) is larger than that of the second through hole (511). The reset spring (71) is attached to the abutting part (75). The two ends of the reset spring (71) abut against the lower ends of the third connecting part (51) and the limiting part (74). The locking part (73) passes through the first sealing member (8).

5. A tactile switch with excellent contact performance according to claim 4, characterized in that, The first sealing element (8) is a silicone sealing element. The first sealing element (8) is a hollow cone structure. The inner diameter of the first sealing element (8) matches the snap-fit ​​part (73) and is sleeved on the snap-fit ​​part (73). The diameter of the limiting part (74) is larger than the diameter of the snap-fit ​​part (73), so that the lower end face of the first sealing element (8) abuts against the upper end face of the limiting part (74). The outer diameter of the upper end of the first sealing element (8) matches the diameter of the pressing part (72).

6. A tactile switch with excellent contact performance according to claim 5, characterized in that, The lower end of the first seal (8) extends outward to form a second snap-fit ​​edge (81), and a third snap-fit ​​edge (121) extends axially from the end of the first through hole (12) to prevent the second snap-fit ​​edge (81) from falling off.

7. A tactile switch with excellent contact performance according to claim 5, characterized in that, The button (7) is provided with a strip-shaped second through groove (741) that passes through the snap-fit ​​part (73) and the limiting part (74), and a first limiting post (21) for insertion into the strip-shaped second through groove is provided on the inner side of the cover (2).

8. A tactile switch with excellent contact performance according to claim 2, characterized in that, A first insertion groove (14) is formed on one side of the main housing (1). The first electrode (3) includes a first external part (32). The first electrode (3) is inserted into the first insertion groove (14), so that the first connecting part (31) is placed in the receiving cavity (11) and the first external part (32) is placed outside the main housing (1). A first connecting terminal (33) is fixedly connected to the first connecting part (31). A second connecting terminal (54) is fixedly connected to the third connecting part (51). The first connecting terminal (33) and the second connecting terminal (54) are arranged facing each other and abut against each other under the action of the U-shaped bend (52).

9. A tactile switch with excellent contact performance according to claim 8, characterized in that, A second insertion groove (15) is formed on one side of the main housing (1). The second pole piece (4) includes a second connecting part (41) and a second external part. The second pole piece (4) is inserted into the second insertion groove (15). The fourth connecting part (53) is fixedly connected to the second connecting part (41). A first auxiliary seat (16) is provided on the receiving cavity (11). A first supporting groove (161) for supporting the second connecting part (41) is provided on the first auxiliary seat (16). The first auxiliary seat (16) is placed below the sound-emitting support (13). The distance between the sound-emitting support (13) and the first supporting groove (161) is equal to the sum of the thicknesses of the second connecting part (41) and the fourth connecting part (53).

10. A tactile switch with excellent contact performance according to claim 9, characterized in that, A first mounting groove (17) is provided on the outside of the main housing (1) to cover the outlet of the first insertion groove (14), and a second mounting groove (18) to cover the outlet of the second insertion groove (15). A second sealing element (9) and a third sealing element (91) are respectively provided on the first mounting groove (17) and the second mounting groove (18).

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