TPR key

Abstract

The utility model discloses a TPR key, and aims to solve the problem that when the key is not vertically pressed, a conductive base and a circuit board conductive sheet can only form point contact, and the connection of a circuit is influenced. According to the technical scheme, the key comprises a key body, a substrate, an inclined wall and a conductive base, the conductive base comprises a connecting part and an arc protruding part connected with the connecting part, the arc protruding part is located on the side, away from the key body, of the connecting part, and the connecting part is connected with the key body. According to the utility model, through the arc structure of the arc protruding part, deformation occurs after abutting against the circuit board conducting strip, so that the contact area with the circuit board conducting strip can be further increased, and the contact stability is improved; the arc protruding part may deform after abutting against the circuit board conducting strip through the arc structure, so that the arc protruding part and the circuit board conducting strip can form a larger contact area, and then connection stability and circuit communication are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of keys, and more specifically to a TPR key. Background Art

[0002] TPR keys are key products made of TPR plastic. TPR keys have high elasticity, high strength, high resilience, and can be injection molded.

[0003] A conductive base is provided at the bottom of the existing TPR button. By pressing the TPR button, the conductive base moves downward and contacts the conductive sheet of the circuit board, triggering the circuit on the circuit board, thereby realizing various operations of the electronic device.

[0004] In order to ensure normal power supply, the existing TPR key conductive base generally coats a layer of conductive ink on the surface of the conductive base. However, when the key is pressed non-vertically, the key will deform, so that the conductive base and the conductive sheet of the circuit board can only form point contact but not surface contact, which affects the connectivity of the circuit.

[0005] Therefore, new solutions need to be proposed to solve this problem. Utility Model Content

[0006] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a TPR key in order to solve the above problems.

[0007] The utility model achieves the above-mentioned purpose through the following technical scheme: a TPR key, including a key body, a substrate, an inclined wall and a conductive base, the conductive base including a connecting portion and an arc convex portion connected to the connecting portion, the arc convex portion is located on a side of the connecting portion away from the key body, and the connecting portion is connected to the key body.

[0008] The utility model is further configured as follows: the arc convex portion is configured as a hollow structure.

[0009] The utility model is further configured as follows: a conducting hole for connecting the inner and outer sides of the circular arc protrusion is opened on the circular arc protrusion.

[0010] The utility model is further configured as follows: the outer surface of the arc convex part is provided with a mesh groove.

[0011] The utility model is further configured as follows: an exhaust passage is arranged on a side of the substrate away from the key body.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The arc structure of the arc protrusion causes the arc protrusion to deform after abutting against the conductive sheet of the circuit board, which can further increase the contact area with the conductive sheet of the circuit board and improve the contact stability. At the same time, when the key is pressed non-vertically, the arc structure may cause the arc protrusion to deform after abutting against the conductive sheet of the circuit board, so that the arc protrusion can form a larger contact area with the conductive sheet of the circuit board, thereby ensuring the connection stability and circuit connectivity. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.

[0016] Figure numerals: 1. key body; 2. substrate; 3. inclined wall; 4. conductive base; 5. connecting part; 6. arc protrusion; 7. conducting hole; 8. mesh groove; 9. exhaust channel. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0018] Example:

[0019] A TPR button, such as Figure 1-Figure 2 As shown, it includes a key body 1, a substrate 2, an inclined wall 3 and a conductive base 4. The key body 1 is connected to the substrate 2 through the inclined wall 3, so that the TPR key forms a covering effect on the conductive sheet of the circuit board to ensure the stability of the contact, and an exhaust channel 9 is provided on the side of the substrate 2 away from the key body 1. Therefore, when the TPR key is pressed, the gas between the TPR key and the conductive sheet of the circuit board can be guided to the outside through the exhaust channel 9, thereby avoiding jamming during the pressing process and improving the comfort of use.

[0020] The conductive base 4 includes a connecting portion 5 and an arc-shaped protrusion 6 connected to the connecting portion 5. The arc-shaped protrusion 6 is located on a side of the connecting portion 5 away from the key body 1. The connecting portion 5 is connected to the key body 1, so that when the key body 1 is pressed to move downward, the arc-shaped protrusion 6 is driven to move downward together through the connecting portion 5, and the arc-shaped protrusion 6 is made to abut against the conductive sheet of the circuit board to form a connected circuit. The arc structure of the arc-shaped protrusion 6 is used to deform after abutting against the conductive sheet of the circuit board, which can further increase the contact area with the conductive sheet of the circuit board, improve the contact stability and the connectivity of the circuit. At the same time, when the key is pressed non-vertically, the arc-shaped protrusion 6 may be deformed after abutting against the conductive sheet of the circuit board through the arc structure, thereby increasing the contact area relative to the existing plane contact.

[0021] In addition, the arc protrusion 6 is set to a hollow structure, which increases the softness and deformability of the arc protrusion 6. Therefore, when the key is pressed non-vertically, the arc protrusion 6 can be deformed more after abutting against the conductive sheet of the circuit board, thereby increasing the contact area, improving the contact stability and circuit connectivity.

[0022] At the same time, a conducting hole 7 for connecting the inner and outer sides of the circular arc protrusion 6 is opened on the circular arc protrusion 6. The conducting hole 7 is used to facilitate the discharge of gas inside the conducting hole 7, so that the circular arc protrusion 6 can be better deformed to fit on the conductive sheet of the circuit board, and a mesh groove 8 is provided on the outer surface of the circular arc protrusion 6. The mesh groove 8 can increase the contact area with the ink, so that the ink can better achieve the adhesion effect when it contacts the circular arc protrusion 6, thereby ensuring the circuit connectivity effect brought by the ink.

[0023] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0024] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A TPR key, comprising a key body, a substrate, an inclined wall and a conductive base, characterized in that: The conductive base includes a connecting portion and an arc convex portion connected to the connecting portion, the arc convex portion is located at a side of the connecting portion away from the key body, and the connecting portion is connected to the key body.

2. A TPR key according to claim 1, characterized in that: The arc convex portion is configured as a hollow structure.

3. A TPR key according to claim 2, characterized in that: The arc convex part is provided with a conducting hole for connecting the inner and outer sides of the arc convex part.

4. A TPR key according to claim 3, characterized in that: The outer surface of the arc convex part is provided with a mesh groove.

5. A TPR key according to claim 4, characterized in that: An exhaust channel is arranged on one side of the substrate away from the key body.

Images