CN205986813U - Key module based on pressure sensor - Google Patents

Abstract

The utility model relates to a button module based on a pressure sensor. A touch assembly is supported on the support plate through an elastic body. At least one pressure sensor module is arranged between the component and the support plate, and the pressure sensor module is configured to generate a pressure signal representing the degree of pressing according to the pressing of the touch component. The button module of the utility model integrates the touch component and the pressure sensor module in the casing, so that the pressure sensor can be directly installed on the terminal product in the form of a module, thereby improving the production efficiency. When the user presses the touch component, the touch component will squeeze the elastic body to deform, so that the pressure sensor matched with the touch component will output a feedback signal, and the feedback signal can be converted into an instruction of the client terminal after back-end processing, thereby Realized the control of the terminal.

Description

A button module based on a pressure sensor

technical field

The utility model belongs to the technical field of touch control, more specifically, the utility model relates to a button module based on a pressure sensor.

Background technique

With the development of science and technology, electronic devices such as mobile phones and computers have become indispensable tools in our lives. For example, the display screen and volume keys of mobile phones are the main control parts of mobile phones. On the casing; after the display screen and other control buttons are assembled with the casing of the mobile phone, there will inevitably be large or small gaps, especially the commonly used volume keys and the like. These gaps will inevitably affect the water resistance of the mobile phone. Moreover, these keys usually need to protrude from the casing for operation, thus affecting the appearance of the whole machine.

Utility model content

One purpose of the present utility model is to provide a button module based on a pressure sensor.

According to one aspect of the present utility model, there is provided a button module based on a pressure sensor, which includes a housing with a hollow inner cavity, and a support plate fixed on the housing and closing one end of the inner cavity of the housing; The touch component in the inner cavity of the housing, the touch component is supported on the support plate by an elastic body, and the touch component includes a touch panel protruding from the opening end of the inner cavity of the housing;

Wherein, at least one pressure sensor module is arranged between the touch component and the support plate, and the pressure sensor module is configured to generate a pressure signal representing the degree of pressing according to the pressing of the touch component.

Optionally, the touch assembly further includes a flange structure provided on the lower edge of the touch panel, and the touch assembly is locked in the step structure provided at the upper end of the inner cavity of the housing through the flange structure.

Optionally, there are two elastic bodies, which are respectively located at two ends of the touch component; or, the elastic body is in a ring structure matching the shape of the touch component.

Optionally, the pressure sensor module includes a circuit board and a pressure sensor electrically connected to the circuit board.

Optionally, there are two pressure sensors, which are respectively denoted as a first pressure sensor and a second pressure sensor; the first pressure sensor and the second pressure sensor are respectively located at two ends of the touch component.

Optionally, protruding contacts are provided on the support plate at positions for cooperating with the first pressure sensor and the second pressure sensor.

Optionally, a limiting column is also provided between the support plate and the touch assembly.

Optionally, there are two limit posts, which are respectively distributed at positions adjacent to the first pressure sensor and the second pressure sensor.

Optionally, a first sealing ring surrounding the inner chamber of the housing is further provided at the position where the housing is connected to the support plate.

Optionally, a second sealing ring surrounding the inner cavity of the housing is provided on the end face of the housing for connecting to the external terminal.

The button module of the utility model integrates the touch component and the pressure sensor module in the casing, so that the pressure sensor can be directly installed on the terminal product in the form of a module, thereby improving the production efficiency. When the user presses the touch component, the touch component will squeeze the elastic body to deform, so that the pressure sensor matched with the touch component will output a feedback signal, and the feedback signal can be converted into an instruction of the client terminal after back-end processing, thereby Realized the control of the terminal.

Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings.

Description of drawings

The accompanying drawings, which constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention.

Fig. 1 is a structural schematic diagram of the button module of the present invention.

detailed description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature, and in no way serves as any limitation of the invention and its application or use.

Techniques and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques and devices should be considered part of the description.

In all examples shown and discussed herein, any specific values should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have different values.

It should be noted that like numerals and letters denote like items in the following figures, therefore, once an item is defined in one figure, it does not require further discussion in subsequent figures.

Referring to FIG. 1 , the present invention provides a key module based on a pressure sensor, which includes a housing 1 with a hollow inner cavity, and a touch assembly confined in the inner cavity of the housing 1 . The hollow cavity of the housing 1 runs through its two ends, and a support plate 6 is also provided at the lower end of the housing 1, and the support plate 6 is fixed on the housing 1, and the inner cavity of the housing 1 is The lower end is closed. The housing 1 and the support plate 6 of the present invention can be formed by injection molding, or can be formed by machining with metal parts.

An elastic body 7 is also arranged on the support plate 6, and the touch assembly located in the inner cavity of the housing 1 is supported on the support plate 6 through the elastic body 7; Bonded to prevent falling off of touch components. The elastic body 7 of the present invention can adopt PC, TPU and other materials well known to those skilled in the art. The elastic body 7 has a certain elastic performance. When the user presses the touch component, the touch component will squeeze the elastic body 7 at the lower end to deform, thereby causing the touch component to move toward the direction of the support plate 6; Under the action of the body 7, the touch assembly is reset.

The number of elastic bodies 7 is preferably set to two, which are respectively located at both ends of the touch assembly, and the two elastic bodies 7 can provide good support for the touch assembly. It is also possible that the elastic body 7 is a ring structure matching the shape of the touch component, and the edge of the touch component is matched with the ring-shaped elastic body 7 to squeeze different positions of the touch component, so that it can be connected with the touch component. The elastic body 7 matched in the corresponding position is extruded and deformed. The elastic body 7 of the present invention can also buffer the impact force of the touch assembly on the pressure sensor module, so as to avoid damage to the pressure sensor module when it is dropped or under rapid impact.

The touch assembly of the present invention includes a touch panel 2 protruding from the opening end of the inner cavity of the housing 1 , as shown in FIG. 1 . The touchpad 2 protrudes from the open end of the housing 1, so that the user can perform corresponding operations through the touchpad 2, for example, the user can press the upper end and the lower end of the touchpad 2, or slide from one end of the touchpad 2 to the touchpad The other end of 2 and so on. Wherein, the touch assembly preferably further includes a flange structure 11 arranged on the lower end edge of the touch panel 2, and the flange structure 11 cooperates with the step structure provided at the upper end of the inner cavity of the casing 1, so as to prevent the touch assembly from falling out of the casing. protruded from the lumen of body 1. The way of engaging through such flange and step structure belongs to the common knowledge of those skilled in the art, and will not be described in detail here.

In the button module of the present utility model, at least one pressure sensor module is arranged between the touch component and the support plate 6, and the pressure sensor module is configured to generate a pressure representing the degree of pressing according to the pressing of the touch component Signal.

The pressure sensor module of the present utility model can be installed on the support plate 6, and can also be installed on the touch assembly. When the touch assembly is pressed, the displacement that occurs after the touch assembly squeezes the elastic body 7 will act on the support plate 6 and the touch assembly. on the pressure sensor module between the touch components, so as to output a pressure signal representing the pressing degree of the touch component through the pressure sensor module. In a preferred embodiment of the present invention, the pressure sensor module includes a circuit board 3 and a pressure sensor electrically connected to the circuit board 3 . The circuit board 3 can be an FPCB board, which can be arranged at the lower end of the touch assembly, for example, at the lower end of the touch panel 2, and the pressure sensor is connected with the circuit board 3, so that the signal output by the pressure sensor can pass through the circuit board 3 transmitted to the control terminal.

The button module of the utility model integrates the touch component and the pressure sensor module in the casing, so that the pressure sensor can be directly installed on the terminal product in the form of a module, thereby improving the production efficiency. When the user presses the touch component, the touch component will squeeze the elastic body to deform, so that the pressure sensor matched with the touch component will output a feedback signal, and the feedback signal can be converted into an instruction of the client terminal after back-end processing, thereby Realized the user's control of the external terminal.

In a specific embodiment of the present utility model, the pressure sensor can be provided with two, which are respectively marked as the first pressure sensor 4 and the second pressure sensor 5; the first pressure sensor 4 and the second pressure sensor 5 are respectively Distributed at both ends of the touch component. It should be noted here that the "both ends" here not only include the two end positions of the touch component, but also include the two sides of the touch component in the length or width direction, such as above, below, left, Right, front, rear, etc.

Referring to the view direction of FIG. 1 , for example, when a force is applied to a position on the touch panel close to the first pressure sensor 4, the touch assembly moves downward as a whole, and the displacement of the end of the touch assembly close to the first pressure sensor 4 is relatively large, far away from the first pressure sensor 4. The displacement at one end of the pressure sensor 4 is small, and the entire touch assembly moves like a "seesaw", which makes the pressure of the touch assembly on the first pressure sensor 4 greater than its pressure on the second pressure sensor 5, so that The first pressure sensor 4 and the second pressure sensor 5 can output different pressure signals, and the force-bearing position on the touch component can be obtained through subsequent calculations, thereby realizing the judgment of human body gestures. Based on the same principle, when the position on the touch panel close to the second pressure sensor 5 is stressed, this makes the pressure of the touch component on the first pressure sensor 4 smaller than its pressure on the second pressure sensor 5, which can be obtained through subsequent calculations The force-bearing position on the touch component realizes the judgment of human gestures.

It is further preferred that protruding contacts 10 are respectively provided on the supporting plate 6 at the positions for cooperating with the first pressure sensor 4 and the second pressure sensor 5, and the supporting plate 6 is respectively connected by the two contacts 10. Cooperating with the first pressure sensor 4 and the second pressure sensor 5, the force-bearing area of the two pressure sensors can be greatly reduced, thereby improving the sensitivity of the two pressure sensors.

In the button module of the present utility model, a limiting column 8 can also be arranged between the support plate 6 and the touch assembly. The limiting column can be fixed on the support plate 6, or can be arranged on the touch assembly. There are preferably two limit posts, which are respectively distributed at positions adjacent to the first pressure sensor 4 and the second pressure sensor 5. The two limit posts 8 are used to limit the position, which can prevent excessive pressing of the touch assembly on the first pressure sensor. Damage caused by the pressure sensor 4 and the second pressure sensor 5.

In the button module of the present invention, a first sealing ring 9 surrounding the inner cavity of the housing 1 is further provided at the position where the housing 1 is connected to the support plate 6 . The sealing performance between the housing 1 and the support plate 6 can be greatly improved by the first sealing ring 9 . Of course, a second sealing ring 12 surrounding the inner cavity of the housing 1 may also be provided on the end face of the housing 1 for connecting to the external terminal, so as to realize the sealing performance between the key module and the external terminal, and improve the The waterproof and dustproof ability of the button module.

Although some specific embodiments of the present utility model have been described in detail through examples, those skilled in the art should understand that the above examples are only for illustration, rather than limiting the scope of the present utility model. It should be understood by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the invention is defined by the appended claims.

Claims (10)

1. a kind of button module based on pressure transducer it is characterised in that：Including the housing (1) with hollow cavity, and It is fixed on housing (1) and closes the gripper shoe (6) of described housing (1) inner chamber one end；Also include being limited in described housing (1) Touch assembly in chamber, described touch assembly is supported in described gripper shoe (6) by elastomer (7), described touch assembly bag Include the touch pad (2) stretching out from described housing (1) lumen openings end；

Wherein, it is provided with least one pressure transducer module between described touch assembly and gripper shoe (6), described pressure passes Sensor module is arranged to produce, according to the described pressing touching assembly, the pressure signal characterizing press degree.

2. button module according to claim 1 it is characterised in that：Described touch assembly also includes being arranged on touch pad (2) flanged structure (11) of lower edge, described touch assembly is stuck in housing (1) inner chamber upper end by described flanged structure (11) In the ledge structure of setting.

3. button module according to claim 1 it is characterised in that：Described elastomer (7) is provided with two, is located at respectively Touch the two ends of assembly；Or, described elastomer (7) is in touch, with described, the loop configuration that element shapes are mated.

4. button module according to claim 1 it is characterised in that：Described pressure transducer module includes circuit board (3) And the pressure transducer electrically connecting with circuit board (3).

5. button module according to claim 4 it is characterised in that：Described pressure transducer is provided with two, remembers respectively For first pressure sensor (4), second pressure sensor (5)；Described first pressure sensor (4), second pressure sensor (5) It is located at the two ends touching assembly respectively.

6. button module according to claim 5 it is characterised in that：Described gripper shoe (6) is upper to be used for passing with first pressure The position that sensor (4), second pressure sensor (5) coordinate is provided with the contact (10) of projection.

7. button module according to claim 5 it is characterised in that：Between described gripper shoe (6) and touch assembly also It is provided with limited post (8).

8. button module according to claim 7 it is characterised in that：Described limited post (8) is provided with two, is distributed respectively Position in neighbouring first pressure sensor (4), second pressure sensor (5).

9. button module according to claim 1 it is characterised in that：The position being connected with gripper shoe (6) in described housing (1) Put the first sealing ring (9) being additionally provided with around described housing (1) inner chamber.

10. button module according to claim 1 it is characterised in that：It is used for connecting exterior terminal in described housing (1) The second sealing ring (12) around described housing (1) inner chamber is provided with end face.