A ring micro push button switch

Abstract

This utility model relates to the field of switch technology, and more particularly to a ring-shaped miniature push-button switch, comprising a housing and a button; the button is installed in a stepped through hole in the housing; a first terminal and a second terminal are horizontally embedded in the housing; a conductive element is embedded in the button; a cover is installed at the bottom of the housing; a spring is provided in the stepped through hole of the housing, the top end of the spring abutting against the button, and the lower end abutting against the cover; when the button is not pressed, the conductive element is in contact with the first terminal and the second terminal respectively, conducting electricity; when the button is pressed down, the conductive element moves downward with the button, disengaging from the first terminal and the second terminal. The first terminal and the second terminal are horizontally arranged and embedded in the housing, which helps to reduce the height of the switch and facilitates its miniaturization.

Description

Technical Field

[0001] This utility model relates to the field of switch technology, and in particular to a ring-shaped miniature push button switch. Background Technology

[0002] With the continuous trend of miniaturization and micro-miniaturization in electronic devices, traditional switches are gradually becoming unable to meet the demands in terms of size, structure, and function. Common push-button switches are relatively large, taking up too much space for microelectronic devices with extremely compact internal spaces, thus limiting the further miniaturization of these devices.

[0003] In the prior art, patent CN209183430U discloses a push-button normally closed switch. When the first terminal is pressed by a first pressing block and the second terminal is pressed by a second pressing block, the portions of the first and second terminals near the push cap come into contact. During the transition from a pressed state to an unpressed state, the upper portions of the first and second terminals separate, and the push-button normally closed switch changes from a closed state to an open state. Specifically, a movable inner shell is installed inside the outer casing, and the first and second pressing blocks are disposed on the inner wall of the inner shell. Pressing the push cap drives the inner shell to move downwards, thereby causing the two pressing blocks to separate from the terminals, thus changing the first and second terminals from a pressed state to an unpressed state.

[0004] The aforementioned prior art has the following problems:

[0005] (1) The structure of the outer shell nested within the inner shell makes the entire switch large in size, which is not conducive to the miniaturization of the switch;

[0006] (2) The two terminals are set vertically, which is not conducive to reducing the height of the switch. Utility Model Content

[0007] The main objective of this invention is to propose a ring-shaped miniature push button switch, which aims to solve the aforementioned technical problems.

[0008] To achieve the above objectives, this utility model proposes a ring-shaped miniature push button switch, comprising a housing and a button; the button is installed in a stepped through hole in the housing; a first terminal and a second terminal are horizontally embedded in the housing; a conductive element is embedded in the button; a cover is installed at the bottom of the housing; a tower spring is provided in the stepped through hole of the housing, the top end of the tower spring abutting against the button, and the lower end abutting against the cover; when the button is not pressed, the conductive element is in contact with the first terminal and the second terminal respectively, conducting electricity; when the button is pressed down, the conductive element moves downward with the button, disconnecting from the first terminal and the second terminal.

[0009] Preferably, the stepped through hole of the housing has a cylindrical hole at the top and a rectangular hole at the bottom; the button includes a rectangular plate and a first cylindrical boss integrally formed on the top surface of the rectangular plate; the rectangular plate is disposed in the rectangular hole of the housing, and the outer peripheral surface of the rectangular plate slides against the inner wall of the rectangular hole; the first cylindrical boss is disposed in the cylindrical hole of the housing, and the first cylindrical boss is clearance-fitted with the cylindrical hole; when the button is not pressed, the tower spring acts upward on the button, so that the top surface of the rectangular plate abuts against the top wall of the rectangular hole.

[0010] Preferably, the button further includes a second cylindrical boss integrally formed on the bottom surface of the rectangular plate; the top of the tower spring is sleeved on the outer peripheral surface of the second cylindrical boss.

[0011] Preferably, vertical U-shaped grooves are respectively formed on the two opposite sidewalls of the rectangular hole; the first terminal and the second terminal each include a hemispherical contact; the contact is located at the upper part of the U-shaped groove; the conductive element includes a rectangular sheet and contact pieces integrally formed on the two opposite sides of the rectangular sheet; the rectangular sheet is embedded in the rectangular plate of the button; the contact pieces extend into the U-shaped groove for contacting the contact.

[0012] Preferably, the first terminal and the second terminal are each provided with two contacts; two U-shaped grooves are respectively formed on the two opposite sidewalls of the rectangular hole; the two contacts of the first terminal are respectively disposed on the upper part of the two U-shaped grooves on one sidewall of the rectangular hole; the two contacts of the second terminal are respectively disposed on the upper part of the two U-shaped grooves on the other sidewall of the rectangular hole; the number of contact pieces is four, of which two are located on one side of the rectangular piece for contact between the two contacts of the first terminal; the other two are located on the other side of the rectangular piece for contact between the two contacts of the second terminal.

[0013] Preferably, multiple ventilation holes are provided on the rectangular plate.

[0014] Preferably, the housing includes a disc and an annular body integrally formed on the bottom surface of the disc; an annular groove is formed between the disc and the annular body; the cover is fastened to the annular body, and the opening of the cover is bent inward and engaged in the annular groove.

[0015] Optionally, the cover and the annular body are riveted together.

[0016] Due to the adoption of the above technical solution, the beneficial effects of this utility model are as follows:

[0017] (1) In this utility model, the first terminal and the second terminal are arranged in a horizontal manner and embedded in the housing, which is beneficial to reducing the height of the switch and miniaturizing the switch.

[0018] (2) In this utility model, the button is directly installed in the stepped through hole of the housing and the conductive element is embedded in the button. When the button is not pressed down, the conductive element can always be kept in contact with the two terminals under the elastic force of the tower spring, forming a normally closed push-button switch. Compared with the structure in the prior art CN209183430U, the ring-shaped micro push-button switch structure provided by this utility model is more compact and is conducive to the miniaturization of the switch. Attached Figure Description

[0019] To more clearly illustrate the technical solutions 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 An exploded view of the ring-shaped miniature push-button switch provided by this utility model;

[0021] Figure 2 This is a cross-sectional view of the ring-shaped miniature push button switch provided by this utility model.

[0022] Explanation of reference numerals: 1. Housing; 1a. Cylindrical hole; 1b. Rectangular hole; 1c. U-shaped groove; 1d. Disc; 1e. Ring-shaped body; 1f. Annular groove; 2. Button; 2a. First cylindrical boss; 2b. Rectangular plate; 2c. Second cylindrical boss; 2d. Vent hole; 3. First terminal; 4. Second terminal; 5. Conductive component; 5a. Rectangular piece; 5b. Contact piece; 6. Cover; 7. Contact point; 8. Tower spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] 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.

[0025] Furthermore, the use of terms such as "first" and "second" in this utility model is 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0026] Combination Figure 1 and Figure 2 As shown, a ring-shaped miniature push-button switch includes a housing 1 and a button 2. The button 2 is installed in a stepped through-hole of the housing 1. A first terminal 3 and a second terminal 4 are horizontally embedded in the housing 1; a conductive element 5 is embedded in the button 2; and a cover 6 is installed at the bottom of the housing 1. A spring 8 is provided in the stepped through-hole of the housing 1, with its top end abutting against the button 2 and its lower end abutting against the cover 6. The spring 8 is always in a compressed, energy-storing state, used to generate an upward force on the button 2.

[0027] In this embodiment, the housing 1 and the button 2 are both plastic parts, and the cover 6 is a metal shell structure.

[0028] When the button 2 is not pressed, the conductive element 5 is in contact with the first terminal 3 and the second terminal 4 respectively, and the first terminal 3 and the second terminal 4 are connected.

[0029] When button 2 is pressed down, the conductive element 5 moves downward with button 2, breaking contact with the first terminal 3 and the second terminal 4. At this time, the first terminal 3 and the second terminal 4 are disconnected.

[0030] Furthermore, the stepped through hole of the housing 1 has a cylindrical hole 1a at the top and a rectangular hole 1b at the bottom; the button 2 includes a rectangular plate 2b and a first cylindrical boss 2a integrally formed on the top surface of the rectangular plate 2b; the rectangular plate 2b is disposed in the rectangular hole 1b of the housing 1, and the outer peripheral surface of the rectangular plate 2b slides in fit with the inner wall of the rectangular hole 1b; the first cylindrical boss 2a is disposed in the cylindrical hole 1a of the housing 1, and the first cylindrical boss 2a is clearance-fitted with the cylindrical hole 1a; when the button 2 is not pressed, the tower spring 8 acts upward on the button 2, so that the top surface of the rectangular plate 2b abuts against the top wall of the rectangular hole 1b, forming a limiting effect to restrict the axial position of the button 2.

[0031] Combination Figure 2As shown, the button 2 also includes a second cylindrical boss 2c integrally formed on the bottom surface of the rectangular plate 2b; the top of the tower spring 8 is sleeved on the outer circumferential surface of the second cylindrical boss 2c. The second cylindrical boss 2c provides a radial limiting effect on the tower spring 8.

[0032] Combination Figure 1 As shown, vertical U-shaped grooves 1c are respectively formed on the two opposite side walls of the rectangular hole 1b; the first terminal 3 and the second terminal 4 each include a hemispherical contact 7; the contact 7 is located at the upper part of the U-shaped groove 1c; the conductive element 5 includes a rectangular piece 5a and contact pieces 5b integrally formed on the two opposite sides of the rectangular piece 5a; the rectangular piece 5a is embedded in the rectangular plate 2b of the button 2; the contact pieces 5b extend into the U-shaped groove 1c for contacting the contact 7.

[0033] Furthermore, each of the first terminal 3 and the second terminal 4 is provided with two contacts 7; two U-shaped grooves 1c are respectively formed on the two opposite sidewalls of the rectangular hole 1b; the two contacts 7 of the first terminal 3 are respectively located on the upper part of the two U-shaped grooves 1c on one sidewall of the rectangular hole 1b; the two contacts 7 of the second terminal 4 are respectively located on the upper part of the two U-shaped grooves 1c on the other sidewall of the rectangular hole 1b; the number of contact pieces 5b is four, two of which are located on one side of the rectangular piece 5a for contact between the two contacts 7 of the first terminal 3; the other two are located on the other side of the rectangular piece 5a for contact between the two contacts 7 of the second terminal 4. Each terminal and the conductive element 5 adopt a double-contact, double-contact-piece structure, so that when the contact on one terminal is not making good contact, the other contact can still make good contact, providing the stability of the switch.

[0034] Combination Figure 1 As shown, multiple vent holes 2d are provided on the rectangular plate 2b. The vent holes 2d connect the upper and lower chambers of the rectangular plate 2b. When button 2 is pressed downwards, air from the lower chamber can enter the upper part of the rectangular plate 2b through the vent holes 2d, facilitating the smooth pressing of button 2. When the press is released, under the elastic force of the tower spring 8, button 2 returns to its original position, allowing air to enter the lower chamber of the rectangular plate 2b through the vent holes 2d. If vent holes 2d were not provided, the pressure in the lower chamber of the rectangular plate 2b would be high when pressed downwards, making pressing difficult. Similarly, if vent holes 2d were not provided, the pressure in the lower chamber of the rectangular plate 2b would be low when returning to its original position, making it difficult to return to its original position.

[0035] Combination Figure 1 and Figure 2As shown, the housing 1 includes a disc body 1d and an annular body 1e integrally formed on the bottom surface of the disc body 1d; an annular groove 1f is formed between the disc body 1d and the annular body 1e; the cover 6 is fastened to the annular body 1e, and the opening of the cover 6 is bent inward and engaged in the annular groove 1f.

[0036] In addition, the cover 6 and the annular body 1e can also be fixed by riveting.

[0037] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A ring micro push button switch, characterized by, Includes a housing (1) and a button (2); The button (2) is installed in the stepped through hole of the housing (1); A first terminal (3) and a second terminal (4) are horizontally embedded on the housing (1); a conductive element (5) is embedded in the button (2); a cover (6) is installed at the bottom of the housing (1); A tower spring (8) is provided in the stepped through hole of the housing (1). The top end of the tower spring (8) abuts against the button (2) and the bottom end abuts against the cover (6). When the button (2) is not pressed, the conductive element (5) is in contact with the first terminal (3) and the second terminal (4) respectively to conduct electricity; When the button (2) is pressed down, the conductive element (5) moves down with the button (2) and disconnects from the first terminal (3) and the second terminal (4).

2. A ring micro push button switch as claimed in claim 1, wherein, The stepped through hole of the shell (1) has a cylindrical hole (1a) at the top and a rectangular hole (1b) at the bottom; The button (2) includes a rectangular plate (2b) and a first cylindrical boss (2a) integrally formed on the top surface of the rectangular plate (2b); The rectangular plate (2b) is disposed in the rectangular hole (1b) of the housing (1), and the outer peripheral surface of the rectangular plate (2b) slides in fit with the inner wall of the rectangular hole (1b); The first cylindrical boss (2a) is disposed in the cylindrical hole (1a) of the housing (1), and the first cylindrical boss (2a) and the cylindrical hole (1a) are in clearance fit; When the button (2) is not pressed, the tower spring (8) acts upward on the button (2), causing the top surface of the rectangular plate (2b) to abut against the top wall of the rectangular hole (1b).

3. A ring-shaped miniature push-button switch as described in claim 2, characterized in that, The button (2) also includes a second cylindrical boss (2c) integrally formed on the bottom surface of the rectangular plate (2b); the top of the tower spring (8) is sleeved on the outer peripheral surface of the second cylindrical boss (2c).

4. A ring-shaped miniature push-button switch as described in claim 2, characterized in that, Vertical U-shaped grooves (1c) are respectively opened on the two opposite side walls of the rectangular hole (1b); The first terminal (3) and the second terminal (4) each include a hemispherical contact (7); the contact (7) is located at the upper part of the U-shaped groove (1c); The conductive element (5) includes a rectangular piece (5a) and contact pieces (5b) integrally formed on two opposite sides of the rectangular piece (5a); the rectangular piece (5a) is embedded in the rectangular plate (2b) of the button (2); the contact piece (5b) extends into the U-shaped groove (1c) for contacting the contact point (7).

5. A ring-shaped miniature push-button switch as described in claim 4, characterized in that, Two contacts (7) are respectively provided on the first terminal (3) and the second terminal (4); two U-shaped grooves (1c) are respectively opened on the two opposite side walls of the rectangular hole (1b); The two contacts (7) of the first terminal (3) are respectively disposed on the upper part of the two U-shaped grooves (1c) on one side wall of the rectangular hole (1b); the two contacts (7) of the second terminal (4) are respectively disposed on the upper part of the two U-shaped grooves (1c) on the other side wall of the rectangular hole (1b); The number of contact pieces (5b) is four, two of which are located on one side of the rectangular piece (5a) for contact between the two contacts (7) of the first terminal (3); the other two are located on the other side of the rectangular piece (5a) for contact between the two contacts (7) of the second terminal (4).

6. A ring-shaped miniature push-button switch as described in claim 2, characterized in that, Multiple ventilation holes (2d) are provided on the rectangular plate (2b).

7. A ring-shaped miniature push-button switch as described in claim 1, characterized in that, The shell (1) includes a disc body (1d) and an annular body (1e) integrally formed on the bottom surface of the disc body (1d); An annular groove (1f) is formed between the disk (1d) and the annular body (1e); The cover (6) is fastened to the annular body (1e), and the opening of the cover (6) is bent inward and engaged in the annular groove (1f).

8. A ring-shaped miniature push-button switch as described in claim 1, characterized in that, The cover (6) is riveted to the annular body (1e).

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