Touch module and electronic equipment

Abstract

The embodiment of the invention relates to the field of touch control, and discloses a touch control module and electronic equipment. A first circuit board, an auxiliary bracket, a supporting sheet, a metal sheet and a second circuit board are sequentially arranged in a preset direction; the vibration module and the touch detection module are arranged on the first circuit board, and the pressure detection module is arranged on the second circuit board. The auxiliary support comprises a first containing area corresponding to the arrangement position of the vibration module, the supporting piece comprises a second containing area corresponding to the arrangement position of the vibration module, and the touch module further comprises a main support arranged on the periphery of the first circuit board and the periphery of the second circuit board in a surrounding mode. The layered and stacked overall structures in the touch module are all contained in the surrounding range of the main support, connection of all the layered structures occurs in the main support, and the area occupied by the touch module in the whole machine shell is reduced to a certain degree. The whole structure is tightly connected, and the utilization rate of the occupied space is improved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of touch control, and in particular to a touch control module and an electronic device. Background Art

[0002] The touch module is a new type of module that integrates touch detection, pressure detection and vibration feedback. It is usually installed on the touchpad of laptop computers and handheld game consoles.

[0003] The inventors have discovered that while the touch module integrates multiple functions to provide a rich experience, it also has problems such as complex structure and large space occupation. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide a touch module and an electronic device, simplify the structure of the touch module, reduce the area occupied by the touch module in the whole housing, and improve the utilization rate of the space.

[0005] To solve the above technical problems, an embodiment of the present invention provides a touch module, comprising: a first circuit board, an auxiliary bracket, a support sheet, a metal sheet, and a second circuit board arranged in sequence in a preset direction; the touch module also comprises: a vibration module and a touch detection module arranged on the first circuit board, and a pressure detection module arranged on the second circuit board; the auxiliary bracket comprises a first accommodating area corresponding to the setting position of the vibration module, the support sheet comprises a second accommodating area corresponding to the setting position of the vibration module, and the shape of the first accommodating area matches the shape of the vibration module, and the vibration module passes through the first accommodating area and the second accommodating area, and penetrates the auxiliary bracket and the support sheet; the touch module also comprises: a first connector connected to the first circuit board, a second connector connected to the second circuit board, and a flexible circuit board FPC connecting the first connector and the second connector; the touch module also comprises: a main bracket arranged around the periphery of the first circuit board and the second circuit board, and the first circuit board, the auxiliary bracket, the support sheet, the metal sheet, and the second circuit board are all included in the enclosed range of the main bracket.

[0006] An embodiment of the present invention further provides an electronic device, comprising: a housing, and a touch panel provided on the housing and having the above-mentioned touch control module.

[0007] Compared with the prior art, the embodiment of the present invention sequentially arranges a first circuit board, an auxiliary bracket, a support sheet, a metal sheet and a second circuit board in a preset direction by means of layered stacking, and at the same time, a first accommodating area and a second accommodating area are respectively cut out at appropriate positions of the auxiliary bracket and the support sheet to accommodate a vibration module arranged on the first circuit board. In addition, a touch detection module is arranged on the first circuit board, and a pressure detection module is arranged on the second circuit board. At the same time, the overall structure of the layered stacking is contained within the enclosure of the main bracket, and the connection of each layered structure occurs inside the main bracket, which reduces the area occupied by the touch module in the housing of the whole machine to a certain extent. The entire structure is tightly connected, which improves the utilization rate of the occupied space.

[0008] In addition, a silicone pad is provided on the surface of the support sheet facing the auxiliary bracket, and the silicone pad is in contact with the auxiliary bracket; the vibration module drives the auxiliary bracket to move back and forth in a vibration state.

[0009] In addition, there are four silicone pads, which are respectively arranged at positions corresponding to the four corners of the support sheet.

[0010] In addition, the main bracket includes a bracket frame, and a first fixing member extending from the bracket frame into the enclosed range; screw holes are provided at positions corresponding to the support sheet and the first fixing member, and the screw holes are on the surface of the support sheet facing the metal sheet and protrude toward the metal sheet; the first fixing member and the screw holes at the corresponding positions are fixed by screws to fix the support sheet to the main bracket.

[0011] In addition, the support sheet is composed of a first support portion formed around the second accommodating area, and a first extension portion and a second extension portion formed by extending outward from both sides of the first support portion respectively; the number of the screw holes is six, wherein two screw holes are arranged in the first extension portion, two screw holes are arranged in the second extension portion, and two screw holes are arranged in the first support portion; the two screw holes arranged in the first support portion are respectively arranged on the opposite sides of the first support portion.

[0012] In addition, the first extension portion is in the shape of an elongated strip, and the two screw holes are arranged side by side in the middle area of ​​the first extension portion; the second extension portion is in the shape of an elongated strip, and the two screw holes are arranged side by side in the middle area of ​​the second extension portion.

[0013] In addition, a plurality of connecting columns are arranged on the surface of the metal sheet facing the support sheet; some of the connecting columns pass through the support sheet from the position between the first support portion and the first extension portion, and the remaining connecting columns pass through the support sheet from the position between the first support portion and the second extension portion; the connecting columns also pass through the auxiliary bracket to be attached to the first circuit board.

[0014] In addition, the main bracket also includes a second fixing member arranged on the surface of the bracket frame close to the second circuit board; a through hole is arranged at a position corresponding to the second circuit board and the second fixing member; the second fixing member and the through hole at the corresponding position are fixed by screws to fix the second circuit board to the main bracket.

[0015] In addition, the pressure detection module is: an inductance module composed of an inductance coil, or a capacitance module composed of an emitter plate and a receiving plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0017] Figure 1 is an exploded diagram of a touch module provided by the present invention;

[0018] Figure 2 It is a structural schematic diagram of a touch detection module in a touch control module provided by the present invention;

[0019] Figure 3 It is a schematic diagram of the assembly structure of a vibration module in a touch control module provided by the present invention;

[0020] Figure 4 It is a schematic diagram of the assembly structure of a metal sheet in a touch module provided by the present invention;

[0021] Figure 5 It is a schematic diagram of the assembly structure of a second circuit board in a touch module provided by the present invention;

[0022] Figure 6 It is a structural schematic diagram of a pressure detection module in a touch control module provided by the present invention;

[0023] Figure 7 It is a schematic diagram of the detection principle of a pressure detection module in a touch control module provided by the present invention;

[0024] Figure 8 It is a schematic diagram of the detection principle of a pressure detection module in a touch control module provided by the present invention;

[0025] Fig. 9 It is a schematic diagram of the three-dimensional structure of a touch module provided by the present invention. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that in the embodiments of the present invention, many technical details are provided to enable the reader to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical scheme claimed in the present application can be implemented.

[0027] The following embodiments are divided for the convenience of description and shall not constitute any limitation on the specific implementation of the present invention. The embodiments may be combined with each other and referenced to each other without contradiction.

[0028] An embodiment of the present invention relates to a touch module. Figure 1 As shown, it includes: a cover plate 1, a first circuit board 2, an auxiliary bracket 3, a support sheet 4, a metal sheet 5 and a second circuit board 6 arranged in sequence in a preset direction; the touch module also includes: a vibration module 8 and a touch detection module (not shown) arranged on the first circuit board 2, and a pressure detection module arranged on the second circuit board 6; the auxiliary bracket 3 includes a first accommodating area corresponding to the setting position of the vibration module 8, and the support sheet 4 includes a second accommodating area corresponding to the setting position of the vibration module 8, and the shape of the first accommodating area matches the shape of the vibration module, and the vibration module 8 passes through the first accommodating area and the second accommodating area, and passes through the auxiliary bracket 3 and the support sheet 4; the touch module also includes: a first connector 21 connected to the first circuit board 2, a second connector 61 connected to the second circuit board 6, and a flexible circuit board 22 connecting the first connector 21 and the second connector 61; the touch module also includes: a main bracket 9 arranged around the periphery of the first circuit board 2 and the second circuit board 6, and the first circuit board 2, the auxiliary bracket 3, the support sheet 4, the metal sheet 5 and the second circuit board 6 are included in the enclosed range of the main bracket 9.

[0029] Compared with the prior art, the embodiment of the present invention sequentially arranges a first circuit board, an auxiliary bracket, a support sheet, a metal sheet and a second circuit board in a preset direction by means of layered stacking, and at the same time, a first accommodating area and a second accommodating area are respectively cut out at appropriate positions of the auxiliary bracket and the support sheet to accommodate a vibration module arranged on the first circuit board. In addition, a touch detection module is arranged on the first circuit board, and a pressure detection module is arranged on the second circuit board. At the same time, the overall structure of the layered stacking is contained within the enclosure of the main bracket, and the connection of each layered structure occurs inside the main bracket, which reduces the area occupied by the touch module in the housing of the whole machine to a certain extent. The entire structure is tightly connected, which improves the utilization rate of the occupied space.

[0030] The following is a detailed description of each layered structure of the touch module in the present invention:

[0031] The touch detection module provided on the first circuit board is as follows: Figure 2 As shown, the first circuit board is divided into several sub-areas, and emitter plates (Rx1, Rx2) and receiving plates (Tx1, Tx2) are respectively arranged in different sub-areas. The emitter plates and the receiving plates form several capacitors, and coupling capacitors are formed between the emitter plates and the receiving plates and the user's fingers, resulting in changes in the capacitance signal. The touch operation and touch position and other information are determined based on the changes in the capacitance signal. Figure 2 Taking the distribution of one type of electrode plates as an example, in practical applications, the first circuit board may also be divided into other shapes such as rectangles and diamonds, and the electrode plates may be closely fitted or may have a certain interval therebetween.

[0032] The vibration module arranged on the first circuit board is as follows Figure 3 As shown, since the vibration module 8 has a certain thickness, in order to make the structure more compact, a first accommodating area corresponding to the setting position of the vibration module 8 is set on the auxiliary bracket 3, and a second accommodating area corresponding to the setting position of the vibration module 8 is set on the support sheet 4. The first accommodating area and the second accommodating area can accommodate the extended part of the vibration module 8 in the thickness direction, reduce the interval between the first circuit board 2, the auxiliary bracket 3 and the support sheet 4, and thereby make the arrangement between the components closer.

[0033] In addition, if Figure 3 As shown, a silicone pad 10 is provided on the surface of the support sheet 4 facing the auxiliary bracket 3, and the silicone pad 10 is in contact with the auxiliary bracket 3. Since the shape of the first accommodating area of ​​the auxiliary bracket 3 matches the shape of the vibration module 8, the vibration module 8 will drive the auxiliary bracket 3 to move back and forth in the vibration state to realize the vibration function. The silicone pad 10 has a certain deformation ability, which can allow the auxiliary bracket 3 to have a certain displacement relative to the support sheet 4, so as to facilitate the realization of the above-mentioned vibration function. There are four silicone pads, which are respectively arranged at the positions corresponding to the four corners of the support sheet.

[0034] like Figure 1 As shown, the edge of the auxiliary bracket 3 has a certain thickness, which is convenient for providing a certain accommodation space for the vibration module 8 in the thickness direction. Four through holes are opened near the edge of the auxiliary bracket 3. The four through holes here correspond to the positions of the four connecting posts set on the metal sheet 5. The connecting posts penetrate the support sheet 4 and pass through the through holes to press against the first circuit board 2, so that when the user presses the cover plate 1 downward with his fingers, the moving distance can act on the connecting posts through the first circuit board 2, and then act on the metal sheet 5, to assist in realizing the pressure detection function. The pressure detection function is described in detail in the subsequent introduction to the pressure detection module.

[0035] In addition, if Figure 3As shown, the support sheet 4 is composed of a first support portion 41 formed around the second accommodating area, and a first extension portion 42 and a second extension portion 43 formed by extending outward from both sides of the first support portion 41. The surface of the support sheet 4 facing the metal sheet 5 is provided with a screw hole protruding toward the metal sheet 5, and the screw hole cooperates with the screw to achieve the fixation between the support sheet 4 and the main bracket. The number of screw holes is six, of which two screw holes are arranged in the first extension part 42, two screw holes are arranged in the second extension part 43, and two screw holes are arranged in the first support part 41; the two screw holes arranged in the first support part 41 are respectively arranged at the opposite sides of the first support part 41, and the two sides of the first support part 41 without screw holes are respectively extended to form a long strip of the first extension part 42 and a long strip of the second extension part 43, the length of the connection position of the first extension part 42 and the first support part 41 is less than the length of the first extension part 42, the length of the connection position of the second extension part 43 and the first support part 41 is less than the length of the second extension part 43, and the two screw holes on the first extension part 42 are located in the middle area, and the two screw holes of the second extension part 43 are arranged side by side in the middle area of ​​the second extension part 43. The silicone pad is arranged at both ends of the first extension part 42 and the second extension part 43. Under such a setting mode, the displacement generated by the vibration module in the vibration state will not affect the metal sheet 5, and will not cause errors in the pressure detection function.

[0036] In addition, if Figure 1 As shown, a plurality of connecting columns are arranged on the surface of the metal sheet 5 facing the support sheet 4; some of the connecting columns penetrate the support sheet 4 from the position between the first support portion and the first extension portion, and the remaining connecting columns penetrate the support sheet 4 from the position between the first support portion and the second extension portion; the connecting columns also penetrate the auxiliary bracket 3 and fit the first circuit board 2. Taking the number of connecting columns as 4 as an example, the four connecting columns are respectively arranged at the four corners of the metal sheet 5, and the corresponding positions of the connecting columns and the first support portion of the support sheet 4 are provided with avoidance arc notches to facilitate the connection columns to pass through the support sheet. In practical applications, an avoidance notch is also arranged at the edge of the middle section of the metal sheet 5 to accommodate the screw holes of the support sheet 4.

[0037] The metal sheet 5 cooperates with the pressure detection module on the second circuit board 6 to realize the pressure detection function, such as Figures 4 to 6 As shown, Figure 4 is an assembly structure diagram of the metal sheet 5 in the module, Figure 5 is an assembly structure diagram of the second circuit board 6 in the module, Figure 6 is a schematic diagram of a pressure detection module on the second circuit board 6.

[0038] When the cover plate is subjected to the force exerted by the user's finger, the ends of the first extension part and the second extension part of the support sheet 4 bend and deform, and the cover plate can move downward, thereby driving the metal sheet 5 to move downward through the connecting column, thereby achieving synchronous movement of the cover plate and the metal sheet 5. The metal sheet 5 moves closer to the second circuit board 6, and the distance between the metal sheet 5 and the second circuit board 6 changes. An inductance module composed of an inductor coil, or a capacitance module composed of an emitter plate and a receiving plate is designed on the second circuit board 6. The inductance module or the capacitance module can generate different signals based on the change in distance, thereby determining the magnitude of the finger force.

[0039] Taking the inductor module composed of the inductor coil designed on the second circuit board 6 as an example, the inductor coil pattern designed on the second circuit board is as follows: Figure 6 As shown in the figure, after the metal sheet 5 moves downward, the distance between it and the inductor coil changes, which causes the inductance to change. Figures 7 and 8 As shown, Figure 7 The magnetic field distribution near the inductor coil when the metal sheet 5 does not move. When the metal sheet 5 moves down to the range of the magnetic flux lines, the magnetic permeability of the metal sheet is much smaller than that of air, so the magnetic resistance of the magnetic circuit (shown by the dotted line in the figure) in the area overlapping with the metal sheet is greatly reduced, resulting in a decrease in the magnetic resistance of the entire magnetic circuit and an increase in inductance. The closer the metal sheet 5 is to the second circuit board 6, the greater the inductance of the inductor coil. Therefore, the distance between the metal sheet 5 and the second circuit board 6 can be determined based on the size of the inductance signal, and then the size of the force applied to the cover plate can be determined.

[0040] In addition, the pressure detection function can also be realized by a capacitor module composed of an emitter plate and a receiving plate. The same number of emitter plates and receiving plates are set on the second circuit board. The emitter plate and the receiving plate and the metal sheet 5 together form a capacitor structure. By changing the distance between the metal sheet 5 and the second circuit board, the capacitance value generated by the capacitor structure will change accordingly, thereby determining the magnitude of the force applied to the cover plate. The above is only one way to realize the pressure detection function of the capacitor module. In actual applications, the metal sheet can also be used as the receiving plate of the capacitor, and only the emitter plate of the capacitor is set on the second circuit board to achieve the effect of capacitance signal change based on distance change. The capacitor structure is not specifically limited here.

[0041] The inductance module and the capacitance module described above realize pressure detection, which can reduce the manufacturing cost of the touch module compared to an independent pressure detection sensor.

[0042] like Fig. 9The figure shows a schematic diagram of the overall assembly structure of the touch module. The main bracket 9 includes a bracket frame and a first fixing member extending from the bracket frame to the surrounding range. The first fixing member and the screw holes at the corresponding positions are fixed by screws to fix the support sheet 4 to the main bracket 9. At the same time, the main bracket 9 also includes a second fixing member arranged on the surface of the bracket frame near the second circuit board 6; the second circuit board 6 is provided with a through hole at a position corresponding to the second fixing member; the second fixing member and the through hole at the corresponding position are fixed by screws to fix the second circuit board to the main bracket 9.

[0043] The various stacked structures of the touch module are fixed by bonding or using positioning holes and screws, which takes up less space and is conducive to the close arrangement of components.

[0044] It is worth mentioning that all modules involved in this embodiment are logic modules. In practical applications, a logic unit can be a physical unit, a part of a physical unit, or a combination of multiple physical units. In addition, in order to highlight the innovative part of the present invention, this embodiment does not introduce units that are not closely related to solving the technical problem proposed by the present invention, but this does not mean that there are no other units in this embodiment.

[0045] Another embodiment of the present invention relates to an electronic device, comprising: a housing, and a touch panel provided on the housing and having the above-mentioned touch module.

[0046] Compared with the related art, the electronic device provided by this embodiment of the present invention is provided with the touch module provided by the aforementioned embodiment. Therefore, it also has the technical effects provided by the aforementioned embodiment, which will not be elaborated here.

[0047] Those skilled in the art will appreciate that the above embodiments are specific embodiments for implementing the present invention, and that in actual applications, various changes may be made in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A touch module, characterized in that: include: A first circuit board, an auxiliary bracket, a support sheet, a metal sheet, and a second circuit board are sequentially arranged in a preset direction; The touch control module further includes: a vibration module and a touch detection module arranged on the first circuit board, and a pressure detection module arranged on the second circuit board; The auxiliary bracket includes a first accommodating area corresponding to the setting position of the vibration module, the support sheet includes a second accommodating area corresponding to the setting position of the vibration module, and the shape of the first accommodating area matches the shape of the vibration module, and the vibration module passes through the first accommodating area and the second accommodating area, and penetrates the auxiliary bracket and the support sheet; The touch module further includes: a first connector connected to the first circuit board, a second connector connected to the second circuit board, and a flexible circuit board FPC connecting the first connector and the second connector; The touch module further comprises: a main bracket arranged around the first circuit board and the second circuit board, wherein the first circuit board, the auxiliary bracket, the support sheet, the metal sheet and the second circuit board are all included in the surrounding range of the main bracket.

2. The touch module according to claim 1, characterized in that: A silicone pad is provided on the surface of the support sheet facing the auxiliary bracket, and the silicone pad is in contact with the auxiliary bracket; The vibration module drives the auxiliary bracket to move back and forth in a vibration state.

3. The touch module according to claim 2, characterized in that: The number of the silicone pads is four, and the four silicone pads are respectively arranged at positions corresponding to the four corners of the support sheet.

4. The touch module according to claim 1, characterized in that: The main support comprises a support frame, and a first fixing member extending from the support frame into the surrounding range; A screw hole is provided at a position of the support sheet corresponding to the first fixing member, and the screw hole is on a surface of the support sheet facing the metal sheet and protrudes toward the metal sheet; The first fixing member and the screw holes at corresponding positions are fixed by screws to fix the supporting sheet to the main bracket.

5. The touch module according to claim 4, characterized in that: The support sheet is composed of a first support portion formed around the second accommodating area, and a first extension portion and a second extension portion formed by extending outward from two sides of the first support portion respectively; The number of the screw holes is six, wherein two screw holes are arranged in the first extension part, two screw holes are arranged in the second extension part, and two screw holes are arranged in the first support part; the two screw holes arranged in the first support part are respectively arranged on opposite sides of the first support part.

6. The touch module according to claim 5, characterized in that: The first extension portion is in the shape of an elongated strip, and the two screw holes are arranged side by side in the middle area of ​​the first extension portion; the second extension portion is in the shape of an elongated strip, and the two screw holes are arranged side by side in the middle area of ​​the second extension portion.

7. The touch module according to claim 5, characterized in that: A plurality of connecting posts are arranged on the surface of the metal sheet facing the supporting sheet; Part of the connecting columns penetrate the supporting sheet from a position between the first supporting portion and the first extending portion, and the remaining part of the connecting columns penetrate the supporting sheet from a position between the first supporting portion and the second extending portion; The connecting column also passes through the auxiliary bracket and is attached to the first circuit board.

8. The touch module according to claim 4, characterized in that: The main bracket also includes a second fixing member arranged on the surface of the bracket frame close to the second circuit board; A through hole is provided at a position of the second circuit board corresponding to the second fixing member; The second fixing member and the through hole at the corresponding position are fixed by screws to fix the second circuit board to the main bracket.

9. The touch module according to claim 1, characterized in that: The pressure detection module is: an inductance module composed of an inductance coil, or a capacitance module composed of an emitter plate and a receiving plate.

10. An electronic device, characterized in that: The invention comprises: a housing, and a touch panel provided on the housing and having the touch module according to any one of claims 1 to 9.

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