Front-insertion rear-pasting light touch switch

Abstract

The utility model discloses a front-inserted back-attached touch switch, which comprises a base, a cover plate arranged at the top of the base, and a button movably arranged in the base, two terminals are respectively arranged at the bottom of the inner wall of the base, two first contacts are arranged on one side of one terminal, a second contact is arranged on one side of the other terminal, and the first contacts and the second contacts are arranged in the base. The top of each first contact is provided with a reed, the button is pre-pressed on the reed, the pre-pressing force of the button is smaller than the triggering force of the reed, a lower sound insulation part is installed on the inner wall of the base, a through hole is formed in the middle of the lower sound insulation part in a penetrating mode, empty grooves are symmetrically formed in the lower sound insulation part, and an upper sound insulation part is installed on the top of the lower sound insulation part. According to the utility model, the button is pre-pressed on the reed, so that the button and the reed are always in a tight fit state, when the button is pressed, noise generated by collision is avoided, and the upper sound insulation part and the lower sound insulation part are arranged to play a sound insulation role, so that the noise generated when the button is pressed is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tactile switches, in particular to a front-inserted and back-pasted tactile switch. Background Technique

[0002] A tactile switch is an electronic switch mainly composed of a base, a button, a cover plate, a reed and a pair of terminals. Its working principle is mainly that when the button is pressed, the button deforms the reed, enabling the terminals to be connected to each other, thereby realizing the connection of the circuit. On the contrary, when the button is released, the reed returns to its original state, disconnecting the terminals, thereby realizing the disconnection of the circuit.

[0003] When the existing tactile switch is pressed, the button will collide with the reed to generate noise, and the deformation of the reed will also emit relatively large noise, resulting in a poor user experience. Especially when used on a sound pickup device, the noise generated by pressing will be picked up by the sound pickup device, affecting the sound pickup effect. Content of the Utility Model

[0004] The purpose of the utility model is to provide a front-inserted and back-pasted tactile switch to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A front-inserted and back-pasted tactile switch, including a base, a cover plate installed on the top of the base, and a button movably arranged inside the base. Two terminals are respectively arranged at the bottom of the inner wall of the base. Two first contacts are arranged on one side of one terminal, and a second contact is arranged on one side of the other terminal. A reed is arranged on the top of the two first contacts. The button is pre-pressed on the reed. The pre-pressure of the button is less than the triggering force of the reed. A lower sound insulation member is installed on the inner wall of the base. A through hole is penetrated through the middle of the lower sound insulation member. Empty grooves are symmetrically arranged on the lower sound insulation member. An upper sound insulation member is installed on the top of the lower sound insulation member. Four positioning columns are arranged on the top of the upper sound insulation member in an annular and equally spaced manner. A positioning hole matching with the positioning column is arranged at the bottom of the cover plate. A convex ring is arranged on one side of the upper sound insulation member. A first round hole is penetrated through the middle of the upper sound insulation member.

[0006] As a preferred scheme of the utility model, the materials of the upper sound insulation member and the lower sound insulation member are both EVA foam.

[0007] As a preferred scheme of the utility model, the top of the button extends through the cover plate to the outside of the cover plate, and one end of the two terminals extends through the base to the outside of the base.

[0008] As a preferred scheme of the utility model, an insertion block is arranged on one side of the cover plate.

[0009] As a preferred scheme of the utility model, a rivet is installed between the cover plate and the base.

[0010] As a preferred embodiment of the present utility model, a plurality of riveting holes are provided through the cover plate, and a second round hole is provided through the middle of the cover plate.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: by pre-pressing the button on the reed, the button and the reed are always in a tightly fitting state, and when the button is pressed, there will be no noise generated by collision, and the upper sound insulation member and the lower sound insulation member provided play a sound insulation role, thereby greatly reducing the noise generated during pressing. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0013] Figure 2 is the Figure 1 exploded view of the present utility model;

[0014] Figure 3 is a sectional view of the present utility model;

[0015] Figure 4 is a structural schematic diagram of the present utility model after the cover plate is disassembled;

[0016] Figure 5 is a structural schematic diagram of the lower sound insulation member of the present utility model;

[0017] Figure 6 is a structural schematic diagram of the upper sound insulation member of the present utility model;

[0018] Figure 7 is a structural schematic diagram of the cover plate of the present utility model;

[0019] Figure 8 is a structural schematic diagram of the terminal of the present utility model.

[0020] In the figure: 1, base; 2, cover plate; 3, button; 4, upper sound insulation member; 5, reed; 6, lower sound insulation member; 7, terminal; 8, insertion block; 9, rivet; 10, convex ring; 11, positioning post; 12, riveting hole; 13, first contact; 14, second contact; 15, empty groove; 16, through hole; 17, first round hole; 18, positioning hole; 19, second round hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1 to 8 , the present invention provides a technical solution: a front-inserted and rear-attached tactile switch, which includes a base 1, a cover plate 2 installed on the top of the base 1, and a button 3 movably arranged inside the base 1. Two terminals 7 are respectively arranged at the bottom of the inner wall of the base 1. Two first contacts 13 are arranged on one side of one terminal 7, and a second contact 14 is arranged on one side of the other terminal 7. A reed 5 is arranged on the top of the two first contacts 13. The button 3 is pre-pressed on the reed 5. The pre-pressure of the button 3 is less than the triggering force of the reed 5. The pre-pressure of the button 3 comes from the pressure of the cover plate 2. By pre-pressing the button 3 on the reed 5, the button 3 and the reed 5 are always in a tightly attached state. When the button 3 is pressed, the button 3 will not collide with the reed 5, and thus there will be no noise generated due to the collision. And the upper sound insulation member 4 and the lower sound insulation member 6 arranged play a sound insulation role to reduce the noise generated when the button 3 is pressed. The inner wall of the base 1 is installed with a lower sound insulation member 6. A through hole 16 is penetrated through the middle of the lower sound insulation member 6. The through hole 16 is used to avoid the second contact 14 to ensure that the reed 5 can contact the second contact 14. Symmetric empty slots 15 are arranged on the lower sound insulation member 6. The empty slots 15 are used to avoid the first contacts 13. The upper sound insulation member 4 is installed on the top of the lower sound insulation member 6. Four positioning columns 11 are arranged on the top of the upper sound insulation member 4 in an annular and equally spaced manner. The positioning columns 11 cooperate with the positioning holes 18 to fix the upper sound insulation member 4 to ensure that the upper sound insulation member 4 is firmly installed. The positioning holes 18 matched with the positioning columns 11 are arranged at the bottom of the cover plate 2. A convex ring 10 is arranged on one side of the upper sound insulation member 4. The convex ring 10 can block the gap between the cover plate 2 and the button 3 to prevent external impurities from entering and improve the reliability of the tactile switch. A first round hole 17 is penetrated through the middle of the upper sound insulation member 4. The first round hole 17 is used to avoid the button 3.

[0023] Among them, the materials of the upper sound insulation member 4 and the lower sound insulation member 6 are both EVA foam. EVA foam has excellent sound insulation performance, can block the noise generated during pressing, and is easy to process and convenient for production. At the same time, it has good insulation performance to provide safety.

[0024] Among them, the top of the button 3 passes through the cover plate 2 and extends to the outside of the cover plate 2. One end of the two terminals 7 passes through the base 1 and extends to the outside of the base 1.

[0025] Among them, one side of the cover plate 2 is provided with an insertion block 8. The insertion block 8 is used to be inserted into the PCB board and can be welded to the PCB board, so that the force during pressing is transferred to the insertion block 8, thereby preventing the terminal 7 from separating from the PCB board and improving the firmness of the welding.

[0026] Among them, a rivet 9 is installed between the cover plate 2 and the base 1. The rivet 9 is used to fix the cover plate 2 on the base 1.

[0027] Among them, the cover plate 2 is provided with a plurality of riveting holes 12 penetrating therethrough. The riveting holes 12 facilitate the rivet 9 to pass through the cover plate 2 to fix the cover plate 2 on the base 1. A second round hole 19 penetrates through the middle of the cover plate 2. The second round hole 19 is used to avoid the button 3 and prevent the button 3 from being blocked by the cover plate 2.

[0028] Specifically, when the rivet 9 passes through the riveting hole 12 to fix the cover plate 2 on the base 1, the cover plate 2 will exert a downward pressure on the button 3, causing the button 3 to move downward a short distance, so that the button 3 is pre-pressed on the reed 5, and the button 3 is in close contact with the reed 5. At this time, the reed 5 will not be triggered. When welding to the PCB board, the insertion block 8 is inserted into the PCB board for welding, and then the terminal 7 is welded to the PCB board in a patch form. When pressing the button 3, the button 3 will not collide with the reed 5, and the button 3 will directly cause the reed 5 to deform, so that there will be no noise generated due to collision. Moreover, the upper sound insulation member 4 and the lower sound insulation member 6 play a sound insulation role to reduce the noise generated when pressing the button 3. After the reed 5 deforms, it contacts the second contact 14, thereby conducting the two terminals 7.

[0029] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front part", "center", "both ends", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is 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 should not be construed as a limitation to the present invention.

[0030] In addition, the terms "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", "fourth" may explicitly or implicitly include at least one of such features.

[0031] In the present utility model, unless otherwise clearly stipulated and defined, terms such as "installation", "setting", "connection", "fixation", "swivel connection" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A front-inserted and rear-attached tactile switch, comprising a base (1), a cover plate (2) mounted on the top of the base (1), and a button (3) movably arranged inside the base (1). Two terminals (7) are respectively provided at the bottom of the inner wall of the base (1). Two first contacts (13) are provided on one side of one of the terminals (7), and a second contact (14) is provided on one side of the other terminal (7). A reed (5) is provided at the top of the two first contacts (13), and it is characterized in that: The button (3) is pre-pressed on the reed (5), and the pre-pressure of the button (3) is less than the triggering force of the reed (5). The inner wall of the base (1) is provided with a lower sound insulation member (6). A through hole (16) is provided through the middle of the lower sound insulation member (6). Empty slots (15) are symmetrically arranged on the lower sound insulation member (6). The upper sound insulation member (4) is installed on the top of the lower sound insulation member (6). Four positioning columns (11) are arranged on the top of the upper sound insulation member (4) in an annular and equally spaced manner. Positioning holes (18) matching the positioning columns (11) are provided at the bottom of the cover plate (2). A convex ring (10) is provided on one side of the upper sound insulation member (4). A first round hole (17) is provided through the middle of the upper sound insulation member (4).

2. The tactile switch with front insertion and rear pasting according to claim 1, characterized in that: The materials of both the upper sound insulation member (4) and the lower sound insulation member (6) are EVA foam.

3. The tactile switch with front insertion and rear pasting according to claim 1, characterized in that: The top of the button (3) extends through the cover plate (2) to the outside of the cover plate (2), and one end of the two terminals (7) extends through the base (1) to the outside of the base (1).

4. The tactile switch with front insertion and rear sticking according to claim 1, characterized in that: An insertion block (8) is provided on one side of the cover plate (2).

5. The tactile switch with front insertion and rear sticking according to claim 1, wherein: A rivet (9) is installed between the cover plate (2) and the base (1).

6. The tactile switch with front insertion and back pasting according to claim 1, wherein: A plurality of riveting holes (12) are provided through the cover plate (2), and a second round hole (19) is provided through the middle of the cover plate (2).

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