Inductive switch structure

Abstract

The utility model provides an inductive switch structure, and relates to the technical field of key switches. The button comprises a button body, an induction unit, an elastic unit and a base, the base is placed on a PCB, the bottom of the PCB is provided with an induction coil and an induction hole, the button body is movably connected with the base, the elastic unit is located between the button body and the base, the induction unit is detachably connected with the button body, and the induction unit is formed by stamping metal materials. The induction unit can penetrate through the induction hole and cut a magnetic field formed by the induction coil by pressing the button. The sensing unit is formed by stamping metal materials, the sensing unit is detachably connected with the button, and the button and the sensing unit can be produced separately and then assembled into a whole, so that the sensing unit is simpler in structural form, convenient to assemble, particularly simpler in processing and manufacturing, relatively low in cost and convenient to manufacture. And automatic mass production is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to key switch technical field, especially a kind of induction switch structure. BACKGROUND

[0002] As the most important input device in computer, keyboard is mainly used to input text, symbol or number in computer.In addition, in addition to computer, consumer electronics products or large-scale processing equipment used in industrial field contacted in daily life need to set key structure as input device, to operate the electronic products and processing equipment.

[0003] The applicant finds that there are at least the following technical problems in the prior art: the induction switch structure of the prior art keyboard generates a signal by cutting the magnetic field generated by the induction coil on the PCB through the induction assembly. Such induction assembly is usually a solid structure, which needs to be integrated with the key, and the production process is complex, the structure is complex, and the cost is high. UTILITY MODEL CONTENT

[0004] The utility model aims at providing an induction switch structure to solve the technical problems in the prior art. The preferred technical solutions in the many technical solutions provided by the utility model can produce many technical effects, which are described below.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions:

[0006] An induction switch structure includes a button, an induction unit, an elastic unit and a base, the base is placed on a PCB, the bottom of the PCB is provided with an induction coil and an induction hole, the button is movably connected with the base, the elastic unit is located between the button and the base, the induction unit is detachably connected with the button, the induction unit is stamped from metal material, and pressing the button can make the induction unit pass through the induction hole and cut the magnetic field formed by the induction coil.

[0007] Preferably, the lower part of the induction unit is gradually tapered from top to bottom to form a conical structure.

[0008] Preferably, the induction unit is a metal induction sleeve, the bottom of the button is provided with a protruding connecting column, and the top of the metal induction sleeve can be sleeved on the connecting column.

[0009] Preferably, the induction unit is a metal induction sheet, the bottom of the button is provided with a plug-in slot, the top of the metal induction sheet is provided with a plug-in part, and the plug-in part can be plugged with the plug-in slot.

[0010] Preferably, a first guide post is arranged on the button, and a second guide post is arranged on the base, and the first guide post is capable of being arranged inside the second guide post.

[0011] Preferably, the elastic unit is a spring, and the spring is sleeved outside the second guide post.

[0012] Preferably, an upper cover is further arranged, and the upper cover is connected with the base, and an opening is arranged on the upper cover and capable of being passed through by the button.

[0013] Preferably, a buffer unit is further arranged, and the buffer unit is connected outside the button, and the buffer unit is capable of being contacted with the upper cover during the upward movement of the button after the pressing on the sensing unit is released.

[0014] Preferably, the buffer unit comprises a structure body and an elastic buffer, the structure body is connected on the button, the elastic buffer is connected on the top of the structure body, and the elastic buffer is capable of being elastically deformed when being contacted with the upper cover.

[0015] Preferably, a positioning post is arranged on the bottom of the base, and a positioning hole is arranged on the PCB, and the positioning post is capable of being arranged inside the positioning hole when the base is placed on the PCB.

[0016] The beneficial effects of the utility model are as follows: the sensing unit is formed by stamping a metal material, and the sensing unit and the button are detachably connected, the button and the sensing unit can be respectively produced, and then assembled into one, the structure of the sensing unit is more simple, the assembly is convenient, especially, the processing and manufacturing are simpler, the cost is relatively lower, and the automatic mass production is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the drawings without paying creative labor.

[0018] Figure 1 It is the explosion structural drawing of the utility model;

[0019] Figure 2 It is the combined structural drawing of the utility model;

[0020] Figure 3 It is the combined structural drawing when the utility model is connected with the PCB;

[0021] Figure 4The structure diagram of the induction unit of the utility model for metal induction sleeve;

[0022] Figure 5 The structure diagram of the induction unit of the utility model for metal induction sheet, and the metal induction sheet is arranged in parallel direction;

[0023] Figure 6 The structure diagram of the induction unit of the utility model for metal induction sheet, and the metal induction sheet is arranged in vertical direction;

[0024] Figure 7 The structure diagram of the buffer unit of the utility model;

[0025] Figure 8 The structure diagram of the computer keyboard key of the utility model;

[0026] Figure 9 The structure diagram of the shaft body notebook computer of the utility model;

[0027] 1, upper cover in the figure;

[0028] 2, button; 21, connecting column; 22, plug-in slot; 23, first guide column;

[0029] 3, induction unit; 31, metal induction sleeve; 32, metal induction sheet; 321, plug-in part;

[0030] 4, elastic unit;

[0031] 5, base; 51, second guide column; 52, positioning column;

[0032] 6, PCB board; 61, induction coil; 62, induction hole; 63, positioning hole;

[0033] 7, buffer unit; 71, structure main body; 72, elastic buffer piece. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantage of the utility model more clear, the technical scheme of the utility model will be described in detail below. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the scope protected by the utility model.

[0035] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "center", "lateral", "length", "width", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side" and the like is based on the drawings, and is only for the purpose of illustrating and describing the utility model, not for indicating or indicating the utility model.Figure 1 The orientation or positional relationship shown is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0036] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0037] Referring to Figures 1 to 7 The utility model provides a kind of induction switch structure, including button 2, sensing unit 3, elastic unit 4 and base 5;

[0038] PCB board 6 is external structure, not belong to induction switch structure, and the bottom of PCB board 6 is provided with induction coil 61, and is provided with induction hole 62, induction coil 61 can magnetic field, base 5 is placed on PCB board 6;

[0039] Button 2 is movably connected with base 5, in the embodiment, preferably form sliding connection between button 2 and base 5, so that button 2 can move relative to base 5;

[0040] Elastic unit 4 is located between button 2 and base 5, and elastic unit 4 can be compressed when button 2 moves towards base 5 under pressure, and can drive button 2 to rebound after pressure is removed;

[0041] Button 2 is preferably made of plastic material, and sensing unit 3 is stamped and formed using metal material, and sensing unit 3 is detachably connected with button 2, and button 2 and sensing unit 3 can be produced respectively, and then assembled into one, so that the structure of sensing unit 3 is more simple, convenient to assemble, especially more simple in processing and manufacturing, relatively low cost, and convenient for automated mass production;

[0042] Pressing button 2 can drive sensing unit 3 to move towards base 5 synchronously, and in the moving process, sensing unit 3 can pass through induction hole 62 and cut the magnetic field formed by induction coil 61 to generate a signal.

[0043] After the pressing of button 2 is released, elastic unit 4 can drive button 2 to rebound and move away from base 5, so that no signal is generated.

[0044] As an optional implementation, the lower part of the induction unit 3 is tapered from top to bottom to form a tapered structure. In this way, when the induction unit 3 cuts the magnetic field generated by the induction coil 61, the strength of the signal can be changed.

[0045] As an optional implementation, the specific structure of the induction unit 3 has a relatively rich choice, and can be flexibly selected according to actual use needs. In the embodiment, two forms are preferred.

[0046] Referring to the accompanying Figure 4 In the first form, the induction unit 3 is a metal induction sleeve 31, which is a hollow structure and is stamped from a metal material. In order to facilitate connection, a protruding connecting column 21 is preferably arranged at the bottom of the button 2. The connecting column 21 cooperates with the metal induction sleeve 31, so that the top of the metal induction sleeve 31 can be sleeved on the connecting column 21. The connection structure here is relatively simple, and it is more convenient and fast to disassemble and assemble, and the processing and manufacturing are simpler and the cost is relatively low.

[0047] Referring to the accompanying Figure 5 and the accompanying Figure 6 In the second form, the induction unit 3 is a metal induction sheet 32, which is also stamped from a metal material. In order to facilitate connection, a plug-in slot 22 is preferably arranged at the bottom of the button 2, and a plug-in part 321 is arranged at the top of the metal induction sheet 32. The plug-in part 321 cooperates with the plug-in slot 22, so that the plug-in part 321 can be plugged into the plug-in slot 22. The connection structure here is also relatively simple, and it is more convenient and fast to disassemble and assemble, and the processing and manufacturing are simpler and the cost is relatively low.

[0048] In the accompanying Figure 5 , the setting direction of the plug-in slot 22 and the plug-in part 321 is parallel to the setting direction of the button 2, and in the accompanying Figure 6 , the setting direction of the plug-in slot 22 and the plug-in part 321 is perpendicular to the setting direction of the button 2. The setting direction can be flexibly selected according to actual use needs.

[0049] It is worth noting that in order to further change the strength of the signal in the process of cutting the induction coil 61, the lower part of the metal induction sleeve 31 and the lower part of the metal induction sheet 32 need to form a tapered structure.

[0050] In addition to the above two structure forms, other connection forms can be used between the induction unit 3 and the button 2, which will not be further described here.

[0051] As an optional implementation, a first guide column 23 is arranged on the button 2, and a second guide column 51 is arranged on the base 5. The first guide column 23 can be arranged inside the second guide column 51.

[0052] The button 2 can be moved up and down in a certain direction by forming a cooperation between the first guide column 23 and the second guide column 51, and the button 2 can be prevented from being stuck during the movement, which is helpful for the normal use of the product.

[0053] As an optional implementation, the elastic unit 4 is a spring, the spring is sleeved outside the second guide column 51, and the spring has good elasticity and can be elastically deformed when being pressed and can rebound when the pressure is removed.

[0054] As an optional implementation, the inductive switch structure further comprises a cover 1 connected with the base 5, and the connection is preferably detachable, so that the cover 1 and the base 5 can be easily disassembled and maintained. The cover 1 is provided with an opening through which the button 2 passes, and the button 2 can be moved up and down relative to the cover 1, and the cover 1 will not block the movement of the button 2.

[0055] As an optional implementation, the inductive switch structure further comprises a buffer unit 7 connected to the outside of the button 2, and the buffer unit 7 can move synchronously with the button 2, and the connection is preferably fixed, so that the buffer unit 7 is firmly connected with the button 2.

[0056] After the pressing on the inductive unit 3 is removed, the elastic unit 4 can recover the elastic deformation and drive the button 2 to move upward, and in the process of the upward movement of the button 2, the buffer unit 7 can first contact the cover 1, thereby buffering the button 2 and the cover 1, so as to effectively reduce the impact sound generated in the rebounding process of the button 2.

[0057] In this embodiment, the buffer unit 7 preferably comprises a structure body 71 and an elastic buffer 72, the structure body 71 is connected to the button 2, and the elastic buffer 72 is connected to the top of the structure body 71. The elastic buffer 72 can be elastically deformed when contacting the cover 1, thereby buffering the button 2 and the cover 1, so as to effectively reduce the impact sound.

[0058] In this embodiment, the buffer unit 7 is symmetrically arranged on both sides of the button 2, so that the force can be effectively and uniformly borne, and the buffering effect is further improved.

[0059] As an optional implementation, the bottom of the base 5 is provided with positioning columns 52, the number of the positioning columns 52 is preferably two and is symmetrically distributed, and the PCB 6 is provided with positioning holes 63, the number of the positioning holes 63 is the same as that of the positioning columns 52 and the positions of the positioning holes 63 correspond to those of the positioning columns 52. When the base 5 is placed on the PCB 6, the positioning columns 52 can be inserted into the positioning holes 63, so that the relative positions between the base 5 and the PCB 6 are more accurately positioned, and the inductive unit 3 can more accurately cut the magnetic field generated by the inductive coil 61.

[0060] As an optional implementation, refer to the attached drawings Figure 8 The utility model also provides a computer keyboard key, and the computer keyboard key applies the above-mentioned induction switch structure.

[0061] As an optional implementation, refer to the attached drawings Figure 9 The utility model also provides a shaft body notebook computer, and the shaft body notebook computer applies the above-mentioned computer keyboard key.

[0062] The above, only is the specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the technology range disclosed by the utility model can easily think of change or replacement, should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be the protection scope of the claims.

Claims

1. An inductive switch structure, characterized by The button (2), the induction unit (3), the elastic unit (4), the base (5) and the buffer unit (7), the base (5) is placed on the PCB board (6), the bottom of the PCB board (6) is provided with induction coil (61) and is opened with induction hole (62), the button (2) with the base (5) is movably connected, the elastic unit (4) is located between the button (2) and the base (5), the induction unit (3) is detachably connected with the button (2), the induction unit (3) is formed by stamping with metal material, the button (2) can be pressed to make the induction unit (3) pass through the induction hole (62) and cut the magnetic field formed by the induction coil (61), the buffer unit (7) is connected on the outside of the button (2).

2. The inductive switch structure according to claim 1, characterized in that The lower part of the induction unit (3) is gradually tapered from top to bottom to form a tapered structure.

3. The inductive switch structure of claim 1, wherein, The induction unit (3) is a metal induction sleeve (31), the bottom of the button (2) is provided with a protruding connecting column (21), the top of the metal induction sleeve (31) can be sleeved on the connecting column (21).

4. The inductive switch structure of claim 1, wherein, The induction unit (3) is a metal induction sheet (32), the bottom of the button (2) is provided with a plug-in slot (22), the top of the metal induction sheet (32) is provided with a plug-in part (321), the plug-in part (321) can be plugged with the plug-in slot (22).

5. The inductive switch structure of claim 1, wherein, The button (2) is provided with a first guide column (23), and the base (5) is provided with a second guide column (51), and the first guide column (23) can be arranged in the inside of the second guide column (51).

6. The inductive switch structure according to claim 5, characterized in that The elastic unit (4) is a spring, and the spring is sleeved on the outside of the second guide column (51).

7. The inductive switch structure of claim 1, wherein It also includes an upper cover (1), the upper cover (1) is connected with the base (5), and the upper cover (1) is provided with an opening hole for the button (2) to pass through.

8. The inductive switch structure according to claim 7, characterized in that After the pressing on the induction unit (3) is released, the buffer unit (7) can contact with the upper cover (1) during the upward movement of the button (2).

9. The inductive switch structure according to claim 8, characterized in that The buffer unit (7) includes a structure body (71) and an elastic buffer (72), the structure body (71) is connected on the button (2), the elastic buffer (72) is connected on the top of the structure body (71), and the elastic buffer (72) can be elastically deformed when contacting with the upper cover (1).

10. The inductive switch structure of claim 1, wherein, The bottom of the base (5) is provided with a positioning column (52), and the PCB board (6) is provided with a positioning hole (63), and when the base (5) is placed on the PCB board (6), the positioning column (52) can be inserted into the inside of the positioning hole (63).

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