Touch sensing device

Abstract

The utility model discloses a touch sensing device, which comprises a touch sensing assembly, a circuit board and an insulating jacket shell, the touch sensing assembly is provided with a sensing piece, the sensing piece is provided with a conductive pin piece, the circuit board is provided with a first conductive contact, the pin piece is contacted with the first conductive contact, the insulating jacket shell is provided with a groove, and the groove is provided with a first conductive contact. The outer sleeve shell is arranged on the touch sensing assembly in a sleeving mode, the sensing piece is close to the bottom face of the groove, the connecting position of the pin piece and the first conductive contact is located in the groove, the touch sensing assembly is stable and reliable to use, and the probability of damage caused by static electricity is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic devices, and in particular to a touch sensing device. Background Art

[0002] As a non-contact sensing device, touch sensing devices are widely used in various electrical equipment. Generally speaking, electrical equipment includes a panel, and touch sensing devices usually include a sensing piece and a circuit board. The pins of the sensing piece are connected to the circuit board, and the sensing piece is in contact with the back of the panel to form a capacitor structure. When the user touches the position corresponding to the sensing piece on the panel surface, the dielectric constant of the capacitor structure changes, and the electrical signal is input into the circuit board along with the sensing piece. However, since the sensing piece is exposed and directly contacts the human body, in dry conditions, the human body is likely to carry static electricity, and static electricity may cause damage to the processing chip through the sensing piece. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides a touch sensing device that is stable and reliable in use and reduces the probability of damage due to static electricity.

[0004] According to an embodiment of the first aspect of the present invention, a touch sensing device includes: a touch sensing component having a sensing sheet, on which a conductive pin is disposed; a circuit board having a first conductive contact, with the pin in contact with the first conductive contact; and an insulating outer shell having a groove, the outer shell being mounted on the touch sensing component, the sensing sheet being close to the bottom surface of the groove, and the connection point between the pin and the first conductive contact being located within the groove.

[0005] A touch sensing device according to an embodiment of the present invention has at least the following beneficial effects:

[0006] In the touch sensing device of the utility model, the sensing piece is close to the bottom surface of the groove. The user can touch the corresponding position of the outer shell, causing the dielectric constant of the sensing position of the sensing piece to change, forming a changed electrical signal that is input into the circuit board through the pin component. Because it is covered by the insulating outer shell, even if static electricity is generated in the environment, it is not easy to enter the sensing piece and the position where the pin component is connected to the first conductive contact, thereby preventing the components on the circuit board from being damaged by static electricity shock. This design is stable and reliable in use and reduces the chance of damage due to static electricity.

[0007] According to some embodiments of the present invention, the touch sensing component further includes an inner sleeve which is hollow and has a mounting channel, the sensing piece is arranged in the inner sleeve and the sensing piece is located at the head end opening of the mounting channel, the circuit board is at least partially passed through the mounting channel so that the pin member is connected to the first conductive contact, and the outer shell is connected to the inner sleeve.

[0008] According to some embodiments of the present invention, the inner wall of the inner sleeve is provided with a slot arranged along the length direction of the installation channel, and the circuit board is inserted into the slot.

[0009] According to some embodiments of the present invention, the pin member includes a first clamping leg and a second clamping leg, there is at least one first conductive contact and it is located on the surface of the circuit board, and the first clamping leg and the second clamping leg are clamped to each other on the circuit board so that at least one of the first clamping leg and the second clamping leg is in contact with the first conductive contact.

[0010] According to some embodiments of the present invention, a limiting groove is provided on the inner wall of the inner sleeve, the pin member is inserted into the limiting groove, and the groove wall of the limiting groove can press against the first clamping foot and the second clamping foot so that the first clamping foot and the second clamping foot are clamped to each other on the circuit board.

[0011] According to some embodiments of the present invention, the outer shell is at least partially made of a light-transmitting material to form a light-transmitting portion, the light-transmitting portion corresponds to the sensor sheet, a light source emitting light toward the installation channel is provided on the circuit board, the sensor sheet is provided with a hollow pattern layer, and the sensor sheet cover is provided at the head end opening of the installation channel.

[0012] According to some embodiments of the present invention, the inner wall surface of the installation channel surrounded by the inner sleeve forms a reflective surface.

[0013] According to some embodiments of the present invention, a first clamping structure is provided between the inner sleeve and the outer shell, and the inner sleeve and the outer shell are connected via the first clamping structure.

[0014] According to some embodiments of the present invention, the circuit board at least partially passes through the tail end opening of the mounting channel, and a second clamping structure is provided between the inner sleeve and the circuit board, and the second clamping structure is used to limit the circuit board from escaping from the tail end opening of the mounting channel, and a second conductive contact is provided at the position where the circuit board passes through the tail end opening of the mounting channel.

[0015] According to some embodiments of the present invention, the outer shell is in a cylindrical shape, and a threaded structure is provided on the outer peripheral wall of the outer shell.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 This is a three-dimensional schematic diagram of one embodiment of the touch switch device of the present invention;

[0019] Figure 2 This is an exploded view of one embodiment of the touch switch device of the present invention;

[0020] Figure 3 for Figure 1 FIG. 1 is a schematic diagram of a cross section AA of one embodiment of a touch switch device of the present invention.

[0021] Reference numerals:

[0022] Circuit board 100; first conductive contact 110; second conductive contact 120; light source 130; outer shell 200; light-transmitting portion 210; threaded structure 220; groove 230; sensor sheet 300; hollow pattern layer 310; pin member 320; first clamping foot 321; second clamping foot 322; inner sleeve 400; mounting channel 410; slot 420; limiting groove 430; first clamping structure 500; bayonet 510; buckle 520; second clamping structure 600. DETAILED DESCRIPTION

[0023] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0024] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientations or positional relationships indicated by terms such as "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", and "outside", are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0025] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0026] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0027] like Figures 1 to 3 As shown, a touch sensing device according to an embodiment of the first aspect of the present utility model includes a touch sensing component, a circuit board 100 and an insulating outer shell 200. The touch sensing component has a sensing sheet 300, and a conductive pin member 320 is provided on the sensing sheet 300. The circuit board 100 is provided with a first conductive contact 110, and the pin member 320 is in contact with the first conductive contact 110. The insulating outer shell 200 has a groove 230, and the outer shell 200 is sleeved on the touch sensing component. The sensing sheet 300 is close to the bottom surface of the groove 230, and the connection position between the pin member 320 and the first conductive contact 110 is located in the groove 230.

[0028] Among them, the outer shell 200 can be made of plastic or resin material, which can isolate static electricity to prevent static electricity from entering the groove 230. The sensor piece 300 and the pin part 320 can be made of copper or other metals or alloy materials with good conductive properties. The circuit board 100 is selected from a conventional PCB board. A processing chip can be set on the circuit board 100, and the processing chip is connected to the conductive contacts.

[0029] In the touch sensing device of the present invention, the sensing piece 300 is close to the bottom surface of the groove 230. The user can touch the corresponding position of the outer shell 200, causing the dielectric constant of the sensing position of the sensing piece 300 to change, forming a changed electrical signal that is input into the circuit board 100 through the pin member 320. Due to the coverage of the insulating outer shell 200, even if static electricity is generated in the environment, it is not easy to enter the sensing piece 300 and the position where the pin member 320 is connected to the first conductive contact 110, thereby preventing the components on the circuit board from being damaged by static electricity shock. This design is stable and reliable to use, and reduces the chance of damage due to static electricity.

[0030] In some embodiments of the present invention, Figure 2 、 3 As shown, the touch sensing component also includes an inner sleeve 400 which is hollow and has a mounting channel 410. The sensing piece 300 is arranged in the inner sleeve 400 and the sensing piece 300 is located at the head end opening of the mounting channel 410. The circuit board 100 is at least partially inserted into the mounting channel 410 so that the pin member 320 is connected to the first conductive contact 110, and the outer shell 200 is connected to the inner sleeve 400.

[0031] The inner sleeve 400 can be made of materials such as resin or plastic. The inner sleeve 400 has a certain length. The circuit board 100 can be inserted into the installation channel 410. The inner sleeve 400 supports and fixes the circuit board 100 and the pin component 320. On the basis of reducing the length of the pin component 320, the pin component 320 can be stably contacted with the first conductive contact 110 on the circuit board 100, and the connection position between the pin component 320 and the first conductive contact 110 can be deepened into the groove 230 to optimize the anti-static effect.

[0032] In some embodiments of the present invention, Figure 3 As shown, the inner wall of the inner sleeve 400 is provided with a slot 420 arranged along the length direction of the installation channel 410 , and the circuit board 100 is inserted into the slot 420 .

[0033] The circuit board 100 has a certain length, and the circuit board 100 can be inserted into the slot 420 along the length direction of the installation channel 410, thereby preventing the circuit board 100 from swinging during use and transportation, which may cause the conductive contact between the pin 320 and the first conductive contact 110 to loosen.

[0034] Specifically, there are two slots 420 , which are respectively disposed on the left and right sides of the inner wall of the installation channel 410 , and the two sides of the circuit board 100 are correspondingly inserted into the slots 420 on both sides.

[0035] In some embodiments of the present invention, Figure 2 、 3 As shown, the pin member 320 includes a first clamping leg 321 and a second clamping leg 322, and the first conductive contact 110 has at least one and is located on the surface of the circuit board 100. The first clamping leg 321 and the second clamping leg 322 are clamped to each other on the circuit board 100 so that at least one of the first clamping leg 321 and the second clamping leg 322 is in contact with the first conductive contact 110.

[0036] The first clamping leg 321 and the second clamping leg 322 are elastic and can be in the shape of a curved sheet. The first clamping leg 321 and the second clamping leg 322 can form an integral structure with the sensing sheet 300. The first clamping leg 321 and the second clamping leg 322 are close to each other and clamped on both sides of the circuit board 100. The first conductive contact 110 can be set on one surface of the circuit board 100, or it can pass through the circuit board 100 and be set on the upper and lower surfaces of the circuit board 100. When the first conductive contact 110 is set on one surface of the circuit board 100, one of the first clamping leg 321 and the second clamping leg 322 contacts the first conductive contact 110. When the first conductive contact 110 is set on the upper and lower surfaces of the circuit board 100, the first clamping leg 321 and the second clamping leg 322 respectively contact the first conductive contact 110 on the upper and lower surfaces of the circuit board 100.

[0037] In some embodiments of the present invention, Figure 3 As shown, a limiting groove 430 is provided on the inner wall of the inner sleeve 400, and the pin member 320 is inserted into the limiting groove 430. The groove wall of the limiting groove 430 can press against the first clamping foot 321 and the second clamping foot 322 so that the first clamping foot 321 and the second clamping foot 322 are clamped to each other on the circuit board 100.

[0038] The limiting groove 430 is opened along the length direction of the installation channel 410, and one end of the limiting groove 430 is provided with a notch on the first end face of the inner sleeve 400. The pin member 320 can be inserted into the limiting groove 430 from the notch. The two side walls of the limiting groove 430 can respectively press against the first clamping foot 321 and the second clamping foot 322, so that the first clamping foot 321 and the second clamping foot 322 can be clamped to each other on the circuit board 100.

[0039] Specifically, the bottom end of the limiting groove 430 can be connected to the end of the slot 420. The width of the slot 420 is slightly larger than the thickness of the circuit board 100, and the width of the limiting groove 430 is larger than the width of the slot 420. The circuit board 100 can be inserted from the notch of the limiting groove 430, and then inserted into the slot 420 through the position where the bottom end of the limiting groove 430 is connected to the end of the slot 420. The position where the first conductive contact 110 is provided on the circuit board 100 remains in the limiting groove 430. The upper and lower surfaces of the circuit board 100 and the two side walls of the limiting groove 430 each have space to allow the first clamping foot 321 and the second clamping foot 322 to be inserted. After the first clamping foot 321 and the second clamping foot 322 are inserted, the first clamping foot 321 and the second clamping foot 322 can be clamped to each other on the circuit board 100.

[0040] In some embodiments of the present invention, Figure 2 、 3As shown, the outer shell 200 is at least partially made of translucent material to form a translucent portion 210, and the translucent portion 210 corresponds to the sensor sheet 300. The circuit board 100 is provided with a light source 130 that emits light toward the installation channel 410. The sensor sheet 300 is provided with a hollow pattern layer 310, and the sensor sheet 300 covers the head end opening of the installation channel 410.

[0041] Among them, the outer shell 200 can be translucent as a whole, or it can be partially translucent at the position corresponding to the position where the sensor sheet 300 is provided. The light source 130 can be an LED lamp bead arranged on the circuit board 100. The sensor sheet 300 blocks the light. A hollow pattern layer 310 can be formed by punching on the sensor sheet 300, and light can pass through the hollow pattern layer 310. The sensor sheet 300 covers the head end opening of the installation channel 410. The light propagates in the installation channel 410, passes through the hollow pattern layer 310 and then passes through the light-transmitting part 210 to emit light.

[0042] In some embodiments of the present invention, the inner wall surface of the mounting channel 410 formed by the inner sleeve 400 forms a reflective surface. The inner wall surface of the mounting channel 410 formed by the inner sleeve 400 remains smooth to form a reflective surface. Light can be reflected from the reflective surface and finally output from the hollow pattern layer 310.

[0043] In some embodiments of the present invention, Figure 1 、 2 As shown in FIG. 3 , a first clamping structure 500 is provided between the inner sleeve 400 and the outer shell 200 , and the inner sleeve 400 and the outer shell 200 are connected via the first clamping structure 500 .

[0044] Specifically, the first clamping structure 500 includes a clamping port 510 provided on the outer shell 200 and a buckle 520 provided on the outer side wall of the inner sleeve 400 . The buckle 520 and the clamping port 510 are clamped together to clamp the inner sleeve 400 and the outer shell 200 .

[0045] In some embodiments of the present invention, Figure 1 、 3 As shown, the circuit board 100 at least partially passes through the tail end opening of the mounting channel 410, and a second clamping structure 600 is provided between the inner sleeve 400 and the circuit board 100. The second clamping structure 600 is used to limit the circuit board 100 from escaping from the tail end opening of the mounting channel 410. A second conductive contact 120 is provided at the position where the circuit board 100 passes through the tail end opening of the mounting channel 410.

[0046] The circuit board 100 can be inserted into the mounting channel 410 from one side of the notch of the limiting groove 430, and enter the slot 420 from the limiting groove 430. Then, the circuit board 100 is restricted by the second clamping structure 600 and will not fall out from the tail end opening of the mounting channel 410. Specifically, the second clamping structure 600 includes a convex rib arranged on the inner side of the inner sleeve 400. Electronic components are arranged on the circuit board 100, and the electronic components protruding from the circuit board 100 can be clamped with the convex rib. There is a conductive circuit layer on the circuit board. The first conductive contact 110 can be connected to the electronic component through the conductive circuit layer, and the second conductive contact 120 can also be connected to the electronic component. External electronic devices can be connected to the second conductive contact 120 through wires, etc. The electrical signal generated by the sensor sheet 300 can be transmitted to the external electronic device to form a trigger signal. The second conductive contact 120 is located at the position where the circuit board 100 passes through the tail end opening of the installation channel 410. When the wire is connected to the second conductive contact 120, it will not enter the groove 230, reducing the occurrence of short circuits and signal interference.

[0047] In some embodiments of the present invention, the outer shell 200 is in a cylindrical shape, and a threaded structure 220 is provided on the outer peripheral wall of the outer shell 200 . The outer shell 200 can be quickly installed with the housing of the electrical equipment through the threaded structure 220 .

[0048] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A touch sensing device, characterized in that: include: A touch sensing component comprises a sensing sheet on which a conductive pin is provided; The circuit board is provided with a first conductive contact, and the pin member is in contact with the first conductive contact; The insulating outer shell has a groove, the outer shell is sleeved on the touch sensing component, the sensing sheet is close to the bottom surface of the groove, and the connection position between the pin member and the first conductive contact is located in the groove.

2. The touch sensing device according to claim 1, wherein: The touch sensing component also includes an inner sleeve that is hollow and has a mounting channel. The sensing piece is arranged in the inner sleeve and is located at the head end opening of the mounting channel. The circuit board is at least partially inserted into the mounting channel so that the pin member is connected to the first conductive contact, and the outer shell is connected to the inner sleeve.

3. The touch sensing device according to claim 2, wherein: The inner wall of the inner sleeve is provided with a slot arranged along the length direction of the installation channel, and the circuit board is inserted into the slot.

4. The touch sensing device according to claim 2, wherein: The pin member includes a first clamping leg and a second clamping leg, there is at least one first conductive contact and it is located on the surface of the circuit board, the first clamping leg and the second clamping leg are clamped to each other on the circuit board so that at least one of the first clamping leg and the second clamping leg is in contact with the first conductive contact.

5. The touch sensing device according to claim 4, wherein: The inner wall of the inner sleeve is provided with a limiting groove, the pin member is inserted into the limiting groove, and the groove wall of the limiting groove can press against the first clamping leg and the second clamping leg so that the first clamping leg and the second clamping leg are mutually clamped on the circuit board.

6. The touch sensing device according to claim 2, wherein: The outer shell is at least partially made of translucent material to form a translucent portion, which corresponds to the sensor sheet. The circuit board is provided with a light source that emits light toward the installation channel. The sensor sheet is provided with a hollow pattern layer, and the sensor sheet cover is provided at the head end opening of the installation channel.

7. The touch sensing device according to claim 6, wherein: The inner wall surface of the installation channel surrounded by the inner sleeve forms a reflective surface.

8. The touch sensing device according to claim 2, wherein: A first clamping structure is provided between the inner sleeve and the outer shell, and the inner sleeve and the outer shell are connected via the first clamping structure.

9. The touch sensing device according to claim 2, wherein: The circuit board at least partially passes through the tail end opening of the mounting channel, and a second clamping structure is provided between the inner sleeve and the circuit board. The second clamping structure is used to limit the circuit board from escaping from the tail end opening of the mounting channel, and a second conductive contact is provided at the position where the circuit board passes through the tail end opening of the mounting channel.

10. The touch sensing device according to claim 1, wherein: The outer shell is in a cylindrical shape, and a thread structure is provided on the outer peripheral wall of the outer shell.

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