CN216246924U - Pressure sensor of intelligent terminal - Google Patents
Pressure sensor of intelligent terminal Download PDFInfo
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- CN216246924U CN216246924U CN202122786833.3U CN202122786833U CN216246924U CN 216246924 U CN216246924 U CN 216246924U CN 202122786833 U CN202122786833 U CN 202122786833U CN 216246924 U CN216246924 U CN 216246924U
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Abstract
The utility model relates to the technical field of mobile terminals, in particular to a pressure sensor of an intelligent terminal. The device comprises a supporting arm, a first flexible circuit board, a second flexible circuit board, a first pressure sensing chip and a second pressure sensing chip; the support arm comprises a first side arm and a second side arm, one end of the first side arm is connected with one end of the second side arm, and the other end of the first side arm and the other end of the second side arm are respectively connected with a screen of the intelligent terminal; one end of the supporting arm, which is connected with the first side arm and the second side arm, is fixedly arranged on a middle frame of the intelligent terminal; the first pressure sensing chip is fixedly arranged on the first side arm or the second side arm through the first flexible circuit board, the second pressure sensing chip is fixedly arranged on the first side arm or the second side arm through the second flexible circuit board, and the first pressure sensing chip and the second pressure sensing chip are not arranged on the first side arm or the second side arm at the same time; and the first flexible circuit board and the second flexible circuit board are respectively connected with the terminal processor of the intelligent terminal. The control range and the sensitivity of the screen of the intelligent terminal are improved.
Description
Technical Field
The utility model relates to the technical field of mobile terminals, in particular to a pressure sensor of an intelligent terminal.
Background
With the development of mobile communication and the continuous improvement of living standard of people, various mobile terminals such as mobile phones are more and more popular. The mobile phone is an indispensable communication tool in life of people, and is also entertainment equipment of most people, so that in order to pursue the texture brought by the mobile phone, the screen of the mobile phone is also larger and larger, the content of the screen is also more and more, and therefore, the control on the mobile phone is also required to be higher and higher, and the requirement on the sensitivity is also required to be higher and higher.
Among the prior art, respectively place a pressure sensor through the head and the tail both ends at intelligent terminal, through the pressure on the response cell-phone screen, and then control intelligent terminal operation, but the defect of this scheme is, can't realize intelligent terminal's full screen control, because reasons such as the restriction of structure, pressure sensor can appear the dead angle in work, especially in the border position of cell-phone screen, can't operate, and then influenced intelligent terminal's screen and accounted for the ratio. And the other scheme is that a pressure sensing sheet is attached under the screen of the intelligent terminal, and the received pressure is sensed by detecting the deformation curvature of the screen, so that the dead angle problem can also exist in the scheme.
In summary, how to increase the control range of the screen of the intelligent terminal becomes a problem to be solved.
SUMMERY OF THE UTILITY MODEL
In order to overcome the technical defects, the utility model aims to provide the pressure sensor of the intelligent terminal, which improves the control range of the screen of the intelligent terminal.
The utility model discloses a pressure sensor of an intelligent terminal, which comprises a supporting arm, a first flexible circuit board, a second flexible circuit board, a first pressure sensing chip and a second pressure sensing chip, wherein the supporting arm is arranged on the supporting arm; the support arm comprises a first side arm and a second side arm, one end of the first side arm is connected with one end of the second side arm, and the other end of the first side arm and the other end of the second side arm are respectively connected with a screen of the intelligent terminal; one end of the supporting arm, which is connected with the first side arm and the second side arm, is fixedly arranged on a middle frame of the intelligent terminal; the first pressure sensing chip is fixedly arranged on the first side arm or the second side arm through the first flexible circuit board, the second pressure sensing chip is fixedly arranged on the first side arm or the second side arm through the second flexible circuit board, and the first pressure sensing chip and the second pressure sensing chip are not arranged on the first side arm or the second side arm at the same time; the first flexible circuit board and the second flexible circuit board are respectively connected with a terminal processor of the intelligent terminal; when the screen of the intelligent terminal is stressed, the first side arm and/or the second side arm deform or the first side arm and the second side arm are connected to the screen of the intelligent terminal and move along the screen of the intelligent terminal to generate displacement information, the first pressure sensing chip and/or the second pressure sensing chip respectively detect the displacement information of the first side arm or the second side arm and send the displacement information to the terminal processor through the first flexible circuit board or the second flexible circuit board, the terminal processor processes the displacement information to obtain pressure sensing information, and when the pressure on the screen of the intelligent terminal disappears, the first side arm and the second side arm of the support arm restore to the shape of the initial state.
Preferably, the first side arm and the second side arm are not connected with one end of the screen of the intelligent terminal, and the first side arm and the second side arm are inclined along opposite directions.
Preferably, the first side arm and the second side arm are respectively connected with a screen of the intelligent terminal through interference fit, and the precision of the interference fit is 0.2 mm-0.3 mm.
Preferably, the support arm further comprises a connecting arm, and when the first side arm and the second side arm are connected, the first side arm and the second side arm are connected through the connecting arm, and the support arm is arranged on the middle frame of the intelligent terminal through the connecting arm.
Preferably, the support arms are symmetrical about the midline of the connecting arm.
Preferably, when the support arm is connected with the middle frame, the connecting arm is fixedly arranged on the opposite surface of the middle frame and the screen of the intelligent terminal, the middle frame of the intelligent terminal is provided with a first opening and a second opening, and the first side arm and the second side arm are respectively connected with the connecting arm through the first opening and the second opening.
Preferably, the support arm further comprises a first bearing arm and a second bearing arm, the first bearing arm and the second bearing arm are respectively arranged at one end, connected with the screen of the intelligent terminal, of the first side arm and the second side arm, and any one surface of the first bearing arm and any one surface of the second bearing arm are in contact with the surface, opposite to the middle frame, of the screen of the intelligent terminal.
Preferably, pressure sensor still including accepting the piece, accept on the fixed opposite face of locating intelligent terminal's screen and center, and pressure sensor's support arm connects intelligent terminal's screen through accepting the piece.
Preferably, the supporting arm of the pressure sensor is connected with the cover plate of the intelligent terminal.
After the technical scheme is adopted, compared with the prior art, the method has the following beneficial effects: the utility model provides a pressure sensor at intelligent terminal, the displacement information that deformation that first side arm and second side arm through first pressure sensing chip and second pressure sensing chip detection support arm produced brought, and obtain the forced induction information after handling in sending the displacement information that detects to the terminal treater through first flexible line way board and second flexible line way board respectively.
Drawings
FIG. 1 is a schematic diagram of an application of a pressure sensor of an intelligent terminal according to the present invention;
FIG. 2 is a schematic diagram of another application of a pressure sensor of an intelligent terminal according to the present invention;
FIG. 3 is a schematic diagram of a support arm of a pressure sensor of an intelligent terminal according to the present invention;
FIG. 4 is a schematic diagram of a pressure sensing chip of a pressure sensor of an intelligent terminal according to the present invention;
fig. 5 is a schematic diagram of a pressure sensing chip of a pressure sensor of an intelligent terminal according to the present invention after deformation is detected.
Reference numerals:
the structure comprises a support arm 1, a first side arm 101, a second side arm 102, a connection arm 103, a first support arm 104, a second support arm 105, a first flexible circuit board 2, a second flexible circuit board 3, a first pressure sensing chip 6, a second pressure sensing chip 7, a support sheet 10, a screen 11 of an intelligent terminal, a middle frame 12 of the intelligent terminal, an R113, an R214, an R315 and an R4 16.
Detailed Description
The advantages of the utility model are further illustrated in the following description of specific embodiments in conjunction with the accompanying drawings.
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in themselves. Thus, "module" and "component" may be used in a mixture.
Referring to fig. 1, the embodiment provides a pressure sensor of an intelligent terminal, including a supporting arm 1, a first flexible printed circuit 2, a second flexible printed circuit 3, a first pressure sensing chip 6, and a second pressure sensing chip 7, where the supporting arm 1 includes a first side arm 101 and a second side arm 102, as shown in fig. 3. One end of the first side arm 101 and one end of the second side arm 102 are connected to form a support arm 1 shaped like a "V", in this case, if the support arm is shaped like a "V", two sides of the "V" character are the first side arm 101 and the second side arm 102, and the other ends of the first side arm 101 and the second side arm 102 are respectively connected to the screen 11 of the intelligent terminal. The end of the support arm 1 where the first side arm 101 and the second side arm 102 are connected is fixed on the middle frame 12 of the intelligent terminal, and the end of the support arm 1 where the first side arm 101 and the second side arm 102 are connected is a tip position of the bottom of a character "V". The first pressure sensing chip 6 is fixedly arranged on the first side arm 101 through the first flexible circuit board 2, namely, the first pressure sensing chip 6 is not in contact with the first side arm 101 and is indirectly arranged on the first side arm 101 through the first flexible circuit board 2, the second pressure sensing chip 7 is fixedly arranged on the second side arm 102 through the second flexible circuit board 3, and the second pressure sensing chip 7 is not in contact with the second side arm 102.
It should be noted that the first pressure sensing chip 6 may also be fixed on the second side arm 102, and the second pressure sensing chip 7 may also be fixed on the first side arm 101, and the description here is not a fixed position, but describes how each pressure sensing chip is fixed, but when the first pressure sensing chip 6 and the second pressure sensing chip 7 are mounted, the first pressure sensing chip 6 and the second pressure sensing chip 7 should be on the first side arm 101 and the second side arm 102, respectively.
The first flexible circuit board 2 connected with the first pressure sensing chip 6 and the first side arm 101 and the second flexible circuit board 3 connected with the second pressure sensing chip 7 and the second side arm 102 are respectively connected with a terminal processor of the intelligent terminal
It should be noted that, when the end, connected to the first side arm 101 and the second side arm 102, of the first side arm is connected to the middle frame 12 of the intelligent terminal, the fixing mode may be fixing by welding, applying adhesive, dispensing, and the like. The support arm 1 may be made of an elastic material.
It should be noted that the operating principle of the pressure sensor is as follows: when the screen 11 of the intelligent terminal is stressed, the first side arm 101 and/or the second side arm 102 deform, or the first side arm 101 and the second side arm 102 are connected to one end of the screen 11 of the intelligent terminal and move along the screen 11 of the intelligent terminal to generate displacement information, the first pressure sensing chip 6 and/or the second pressure sensing chip 7 detect the displacement information and send the detected displacement information to the terminal processor of the intelligent terminal through the first flexible circuit board 2 and the second flexible circuit board 3, the terminal processor processes the displacement information and obtains pressure sensing information after processing, and when the pressure on the screen 11 of the intelligent terminal disappears, the first side arm 101 and the second side arm 102 of the support arm 1 restore to the original shapes.
It should be noted that the ends of the first side arm 101 and the second side arm 102 connected to the screen 11 of the smart terminal are not connected, and the first side arm 101 and the second side arm 102 are inclined in opposite directions, and when the shape is the character "V" as described above, the first side arm 101 and the second side arm 102 are connected only when the bottom is connected to the middle frame 12 of the smart terminal, and the other portions are not connected and are inclined in different directions. The first side arm 101 and the second side arm 102 are respectively connected with the screen 11 of the intelligent terminal in an interference fit manner, and the precision of the interference fit is 0.2 mm-0.3 mm, because the clearance between the screen 11 of each intelligent terminal and the middle frame 12 of the intelligent terminal is not uniform, when the pressure sensor is configured on different intelligent terminals, the inclination angles of the first side arm 101 and the second side arm 102 need to be determined according to the models of the intelligent terminals, but the precision is optimal, and other fit precisions can be selected. The included angle between the first side arm 101 and the screen 11 of the intelligent terminal is equal to the included angle between the second side arm 102 and the screen 11 of the intelligent terminal.
Referring to fig. 3, the support arm 1 further includes a connecting arm 103, when the first side arm 101 and the second side arm 102 are connected, the connecting arm 103 is connected, the first side arm 101 and the second side arm 102 are respectively disposed at two ends of the connecting arm 103, the support arm 1 is disposed on the middle frame 12 of the smart terminal through the connecting arm 103, and the support arm 1 is symmetrical with respect to any central line of the connecting arm 103. Through setting up linking arm 103, the toper that first side arm 101 and second side arm 102 direct link to each other and form is cancelled directly links to each other with intelligent terminal's center 12 to this area of contact when increasing support arm 1 and intelligent terminal's center 12 and linking to each other, thereby protect intelligent terminal's center 12, and also can prolong support arm 1's life simultaneously.
It should be noted that, when the support arm 1 is connected to the middle frame, the connection arm 103 is fixed to the opposite surface of the middle frame 12 and the screen 11 of the intelligent terminal, and the opposite surface of the middle frame 11 when the middle frame 12 and the screen 11 of the intelligent terminal are opposite, and the middle frame 12 of the intelligent terminal is provided with a first opening and a second opening respectively, and the first side arm 101 and the second side arm 102 pass through the first opening and the second opening respectively to be connected to two ends of the connection arm 103 when the connection arm 103 is connected. It should be noted that the sizes of the first opening and the second opening should satisfy the variation range of the deformation of the first side arm 101 and the second side arm 102 caused by the pressure applied to the screen 11 of the smart terminal, and also satisfy the moving range when the first side arm 101 and the second side arm 102 are connected to the screen 11 of the smart terminal and slide along the screen.
Referring to the above embodiment, the support arm 1 further includes a first receiving arm 104 and a second receiving arm 105, the first receiving arm 104 and the second receiving arm 105 are respectively disposed at one end of the first side arm 101 and the second side arm 102, which are connected to the screen 11 of the smart terminal, and any one surface of the first receiving arm 104 and the second receiving arm 105 is in contact with a surface of the screen 11 of the smart terminal, which is opposite to the middle frame 12. Through setting up first accepting arm 104 and second accepting arm 105, increased the area of contact of support arm 1 with intelligent terminal's screen 11 to when having pressure on intelligent terminal's screen 11, can protect intelligent terminal's screen 11, also improved the area of contact of support arm 1 with intelligent terminal's screen 11 simultaneously, reduced the dead angle.
Referring to the above embodiment, one end of the support arm 1, which is connected to the first side arm 101 and the second side arm 102, is fixed on the screen 11 of the intelligent terminal, and the other end is arranged on the middle frame 12 of the intelligent terminal; here, the pressure sensor is an implementation mode in which the above-mentioned embodiment is rotated by 180 °, and at this time, when the screen 11 of the intelligent terminal is pressed, the end of the first side arm 101 and/or the second side arm 102, which is connected to the middle frame 12 of the intelligent terminal, moves along the middle frame, or the first side arm 101 and the second side arm 102 deform, and further displacement information may be generated.
In the above embodiments, the contact piece 10 may be provided at the connection point between the pressure sensor and the screen 11 of the smart terminal, and the contact area between the pressure sensor and the screen 11 of the smart terminal may be increased again by the contact piece 10, thereby further increasing the control range of the pressure sensor. And foretell pressure sensor can also set up on intelligent terminal's apron, apron and intelligent terminal's outer screen.
It should be noted that, referring to fig. 4 and 5, the operating principle of the first pressure sensing chip and the second pressure sensing chip is as follows: the first pressure sensing chip and the second pressure sensing chip are of a Wheatstone bridge structure, when micro-deformation occurs, the resistors R113 and R416 distributed on the first pressure sensing chip receive compressive stress, the resistance value is reduced, the resistors R214 and R315 receive tensile stress, the resistance value is increased, a voltage difference is formed between V1 and V2, when the external applied force is larger, the deformation quantity is larger, the voltage difference is correspondingly larger, finally the voltage difference is transmitted to the terminal processor through the flexible circuit board, and pressure sensing information is obtained after calculation and analysis.
The smart terminal may be implemented in various forms. For example, the terminal described in the present invention may include an intelligent terminal such as a mobile phone, a smart phone, a notebook computer, a PDA (personal digital assistant), a PAD (tablet computer), a PMP (portable multimedia player), a navigation device, etc., and a fixed terminal such as a digital TV, a desktop computer, etc. In the following, it is assumed that the terminal is a smart terminal. However, it will be understood by those skilled in the art that the configuration according to the embodiment of the present invention can be applied to a fixed type terminal in addition to elements particularly used for moving purposes.
It should be noted that the embodiments of the present invention have been described in terms of preferred embodiments, and not by way of limitation, and that those skilled in the art can make modifications and variations of the embodiments described above without departing from the spirit of the utility model.
Claims (9)
1. The pressure sensor of the intelligent terminal is characterized by comprising a support arm, a first flexible circuit board, a second flexible circuit board, a first pressure sensing chip and a second pressure sensing chip; wherein the content of the first and second substances,
the supporting arm comprises a first side arm and a second side arm, one end of the first side arm is connected with one end of the second side arm, and the other end of the first side arm is connected with the other end of the second side arm;
one end of the supporting arm, which is connected with the first side arm and the second side arm, is fixedly arranged on a middle frame of the intelligent terminal;
the first pressure sensing chip is fixedly arranged on the first side arm or the second side arm through the first flexible circuit board, the second pressure sensing chip is fixedly arranged on the first side arm or the second side arm through the second flexible circuit board, and the first pressure sensing chip and the second pressure sensing chip are not arranged on the first side arm or the second side arm at the same time;
the first flexible circuit board and the second flexible circuit board are respectively connected with a terminal processor of the intelligent terminal;
when the screen of the intelligent terminal is stressed, the first side arm and/or the second side arm deform or the first side arm and the second side arm are connected with one end of the screen of the intelligent terminal, displacement information is generated after the screen of the intelligent terminal moves, the first pressure sensing chip and/or the second pressure sensing chip detect the displacement information and send the displacement information to the terminal processor through the first flexible circuit board or the second flexible circuit board to be processed by the displacement information, pressure sensing information is obtained, and when the pressure on the screen of the intelligent terminal disappears, the first side arm and the second side arm of the supporting arm restore to the shape of the initial state.
2. The pressure sensor according to claim 1, wherein the ends of the first side arm and the second side arm connected to the screen of the smart terminal are not connected, and the first side arm and the second side arm are inclined in opposite directions.
3. The pressure sensor according to claim 2, wherein the first side arm and the second side arm are respectively connected with a screen of the intelligent terminal through interference fit, and the precision of the interference fit is 0.2 mm-0.3 mm.
4. The pressure sensor according to claim 1, wherein the support arm further includes a connection arm, and when the first side arm and the second side arm are connected, the connection arm is connected to the support arm, and the support arm is disposed on a middle frame of the smart terminal through the connection arm.
5. A pressure sensor as claimed in claim 4, wherein the support arm is symmetrical about a midline of the connecting arm.
6. The pressure sensor according to claim 4, wherein when the supporting arm is connected to the middle frame, the connecting arm is fixedly disposed on an opposite surface of the middle frame of the intelligent terminal and the screen, a first opening and a second opening are disposed on the middle frame of the intelligent terminal, and the first side arm and the second side arm are respectively connected to the connecting arm through the first opening and the second opening.
7. The pressure sensor according to claim 1, wherein the support arm further includes a first receiving arm and a second receiving arm, the first receiving arm and the second receiving arm are respectively disposed at one end of the first side arm and the second side arm, where the one end is connected to the screen of the smart terminal, and any one surface of the first receiving arm and the second receiving arm is in contact with a surface of the screen of the smart terminal, which is opposite to the middle frame.
8. The pressure sensor according to claim 1, further comprising a receiving sheet, wherein the receiving sheet is fixedly disposed on an opposite surface of the screen of the intelligent terminal to the middle frame, and the supporting arm of the pressure sensor is connected to the screen of the intelligent terminal through the receiving sheet.
9. The pressure sensor according to any one of claims 1 to 8, wherein the supporting arm of the pressure sensor is connected to a cover plate of the intelligent terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122786833.3U CN216246924U (en) | 2021-11-15 | 2021-11-15 | Pressure sensor of intelligent terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122786833.3U CN216246924U (en) | 2021-11-15 | 2021-11-15 | Pressure sensor of intelligent terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216246924U true CN216246924U (en) | 2022-04-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122786833.3U Active CN216246924U (en) | 2021-11-15 | 2021-11-15 | Pressure sensor of intelligent terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216246924U (en) |
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2021
- 2021-11-15 CN CN202122786833.3U patent/CN216246924U/en active Active
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