CN219018796U

CN219018796U - Automobile touch switch based on force sensing assembly

Info

Publication number: CN219018796U
Application number: CN202320060074.9U
Authority: CN
Inventors: 赵松林; 李真龙; 顾勇
Original assignee: Shanghai Kostal Huayang Automotive Electric Co Ltd; Kostal Shanghai Mechatronic Co Ltd
Current assignee: Shanghai Kostal Huayang Automotive Electric Co Ltd; Kostal Shanghai Mechatronic Co Ltd
Priority date: 2023-01-09
Filing date: 2023-01-09
Publication date: 2023-05-12
Anticipated expiration: 2033-01-09

Abstract

The utility model discloses an automobile touch switch based on a force sensing assembly, which comprises a shell, a conducting assembly, the force sensing assembly and a main board; a beacon is arranged on the upper end face of the shell; one end of the conduction component is correspondingly connected with the shell through the beacon, and the other end of the conduction component is correspondingly connected with the force sensing component; the force sensing assembly is arranged on the main board. According to the scheme, through the linkage of the force sensing assembly and the surface deformation of the product shell, the main controller can accurately detect the mechanical deformation, so that the anti-interference capability of the switch is improved, the problem of false function triggering caused by environmental change of the traditional touch switch is avoided, and the reliability of the switch in use is ensured.

Description

Automobile touch switch based on force sensing assembly

Technical Field

The utility model relates to the technical field of electronic appliances, in particular to an automobile touch switch based on a force sensing assembly.

Background

With the development of switches in the cabin of automobiles, more and more traditional mechanical switches are replaced by touch switches.

At present, most of common touch switches adopt a capacitive scheme, and as medium constants in air are easily interfered by complex electromagnetic environments, capacitance is changed, so that capacitance is changed, an MCU samples an error signal, and the problem that a product has no function or is triggered by a function error is caused.

Therefore, the circuit of the conventional touch switch has the technical problem of low reliability, so that how to improve the reliability of the automobile touch switch is a problem to be solved in the field.

Disclosure of Invention

Aiming at the technical problem of low reliability of the conventional automobile touch switch, the utility model aims to provide the automobile touch switch based on the force sensing component, which can improve the anti-interference capability of the switch, can not cause false triggering or function loss under a complex electromagnetic environment, ensures the reliability of the switch in use and well overcomes the problems in the prior art.

In order to achieve the above purpose, the utility model provides an automobile touch switch based on a force sensing component, a shell, a conduction component, the force sensing component and a main board; a beacon is arranged on the upper end face of the shell; one end of the conduction component is correspondingly in abutting fit with the shell, and the other end of the conduction component is correspondingly in abutting fit with the force sensing component; the force sensing assembly is arranged on the main board.

Further, the conduction component is a shell upright post, and two ends of the shell upright post are respectively abutted with the bottom of the shell and the force sensing component.

Further, an MCU main control chip is arranged on the main board; the MCU main control chip is connected with the force sensing component.

Further, the force sensing assembly is a force sensitive resistor.

Further, the force sensing assembly is a pressure sensor.

According to the automobile touch switch based on the force sensing assembly, through linkage of the force sensing assembly and surface deformation of the product shell, the main controller can accurately detect mechanical deformation, so that the anti-interference capability of the switch is improved, the problem of false triggering of functions caused by environmental change of the traditional touch switch is avoided, and the reliability of the switch in use is ensured.

Drawings

The utility model is further described below with reference to the drawings and the detailed description.

FIG. 1 is a schematic diagram of an exploded construction of an automotive touch switch based on a force sensing assembly in this example;

fig. 2 is a diagram showing an example of a state of use of the automobile touch switch based on the force sensing assembly in this example.

The following is a description of the components in the drawings:

100. a beacon; 200, a shell; 300, a shell upright post;

400. a force sensing assembly; 500, a main board; 600 feet.

Detailed Description

The utility model is further described with reference to the following detailed drawings in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the implementation of the utility model easy to understand.

Based on the technical problem that the reliability of the conventional automobile touch switch is low, the utility model provides the automobile touch switch based on the force sensing component, which can enable an MCU to accurately detect mechanical deformation through linkage of the force sensing resistor and the surface deformation of a product shell, further improve the anti-interference capability of the switch, avoid the problem of false function triggering caused by environmental change of the conventional touch switch and ensure the reliability of the switch in use.

Referring to fig. 1, the force sensing assembly-based automotive touch switch provided in this example scheme includes a housing 200, a housing column 300, a force sensing assembly 400, a main board 500, and a base 600.

The housing 200 in the present switch cooperates with the base 600 to form a housing assembly for carrying other components.

Wherein, a beacon 100 is provided above the housing 200, and the beacon 100 is used for corresponding functions.

The base 600 is disposed at the bottom of the housing 200 and is used for carrying the motherboard 500; meanwhile, the force sensing assemblies 400 are disposed on the main board 500 and correspond to beacons on the housing 200 one by one.

In cooperation with this, the housing columns 300 are disposed between the housing 200 and the base 600, each housing column 300 is disposed in a distributed manner corresponding to a set of beacons 100 and force sensing assemblies 400, the top end of each housing column 300 abuts against the inner wall of the housing 200 and corresponds to the corresponding beacon 100 thereon, and the bottom end of the housing column 300 abuts against and cooperates with the corresponding force sensing assembly 400 on the motherboard 500.

The automobile touch switch formed by the method is based on the cooperation of the beacon and the shell, the shell directly receives the pressure born by the beacon and generates corresponding deformation; when the deformation of the shell is transmitted to the corresponding force sensing assembly through the corresponding shell upright post, the linkage of the deformation of the surface of the shell of the product through the force sensing assembly is realized, the MCU can accurately detect the mechanical deformation, and the anti-interference capability of the switch is improved.

The following specifically describes a specific implementation scheme of the automobile touch switch based on the force sensing component provided by the example.

Referring to fig. 1 and fig. 2, in the present example, a positioning slot may be specifically provided on an upper end surface of a housing 200, and a corresponding beacon 100 is disposed in the positioning slot and connected to the housing 200; the beacon 100 may be attached to the upper end surface of the housing 200.

Here, the connection structure between the beacon 100 and the housing 200 is not limited, and may be according to actual situations.

In addition, the upper end surface of the shell 200 can be provided with a plurality of beacons 100 according to practical situations, wherein each beacon 100 can correspond to different functions to improve the applicability of the device,

if a plurality of beacons 100 are adopted, preferably, the beacons 100 can be equidistantly arranged on the housing 200, so that each functional module is ensured not to interfere with each other.

When the beacon 100 is pressed by an external force, the pressure applied by the beacon 100 is directly transferred to the upper surface of the housing 200, so that the housing 200 is pressed, and the position of the housing 200 bearing the beacon 100 is slightly deformed.

On this basis, in this example, a housing column 300 is correspondingly disposed below each beacon 100, the housing column 300 is disposed inside the housing 200 and is correspondingly disposed with the beacon 100, the top end abuts against the inner wall of the housing 200 and the position corresponding to the beacon 100, and the bottom end of the housing column 300 directly abuts against and cooperates with the corresponding force sensing component 400 on the motherboard. Thus, when the surface of the housing 200 is deformed, the deformation amount generated can be directly transmitted to the force sensing assembly 400 through the housing column 300, so as to form a corresponding pressure on the force sensing assembly 400.

Here, for the distribution setting of the beacons 100, a corresponding number of housing columns 300 are employed, and a one-to-one distribution setting is provided within the housing 200.

In order to be able to well cooperate with the housing column 300, the stable reliability of the cooperation of the two is ensured, and the motherboard 500 is fixedly arranged on the base 600 in this example. On the basis, corresponding force sensing assemblies 400 are arranged on the main board 500, and each force sensing assembly 400 corresponds to a beacon 100 on the shell 200 one by one, namely corresponds to a shell upright 300 in the shell one by one.

Thus, when the main board 500 is mounted on the housing 200 along with the base 600, the force sensing assemblies 400 on the main board are exactly in one-to-one correspondence with the housing columns 300 in the housing, and can be in abutting fit with the bottom ends of the corresponding housing columns 300.

The specific configuration and structure of the motherboard 500 in this embodiment are not limited herein, and may be specifically determined according to actual requirements.

As an example, the motherboard 500 in this example is preferably configured based on an MCU host chip, and a connection circuit connected to the force sensing assembly 400 is provided thereon.

In order to ensure the accuracy of measurement and the connection reliability with the motherboard, the force sensing assembly 400 in this example preferably adopts a patch structure, so that the force sensing assembly can be conveniently and reliably disposed on the motherboard 500, and also can form a stable abutting engagement structure with the housing upright 300.

It should be noted that, in this embodiment, the specific configuration of the force sensing assembly 400 is not limited, and as an example, the force sensing assembly 400 may use a force sensitive resistor, may also use a pressure sensor, and the specific configuration is not limited, and may be determined according to practical situations.

The following illustrates the working process of the present solution in a specific application, where the following needs to illustrate only one specific application example of the present solution, and is not limited to the present solution or specific functional configuration.

In addition, when the scheme is specifically implemented, some matched setting or control functions may need to be added according to practical situations. These supporting settings or control functions are only introduced to illustrate the implementation of the present solution, and are not necessarily essential to the present solution, but are not limited to the present solution or specific functional configurations.

Referring to fig. 1 and 2, according to the required functions, when a user presses the corresponding beacon 100 from top to bottom, the corresponding position on the surface of the product housing 200 is slightly deformed, the small deformation on the surface of the housing 200 is transmitted to the force sensing resistor 400 (i.e., the force sensing assembly 400) through the housing column 300, and the force sensing resistor 400 is synchronously changed after being pressed, so that the resistance value is changed.

At that time, the resistance value generated by the force sensitive resistor 400 is transmitted to the MCU control chip on the main board 500; the MCU control chip acquires the corresponding resistance signal, thereby identifying the resistance signal as an effective touch signal and sending out a corresponding control command.

As a further example, to avoid false triggering, the MCU control chip may collect the force-sensing resistor signal quantities of two adjacent positions of the force-sensing resistor at the same time for the collected force-sensing resistor 400 signal to perform comprehensive judgment. The specific implementation manner of the judgment is not limited herein, and may be specific to the actual requirement.

According to the automobile touch switch based on the force sensing assembly, which is formed by the scheme, mechanical deformation can be accurately detected by the main controller through linkage of deformation of the force sensing assembly and the surface of the shell of the product, so that the anti-interference capability of the switch is improved, the problem of false function triggering caused by environmental change of the traditional touch switch is avoided, and the reliability of the switch in use is ensured.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. An automobile touch switch based on a force sensing assembly is characterized by comprising a shell, a conducting assembly, the force sensing assembly and a main board; a beacon is arranged on the upper end face of the shell; one end of the conduction component is correspondingly in abutting fit with the shell, and the other end of the conduction component is correspondingly in abutting fit with the force sensing component; the force sensing assembly is arranged on the main board.

2. The automobile touch switch based on a force sensing assembly according to claim 1, wherein the conductive assembly is a housing column, and two ends of the housing column are respectively abutted with the bottom of the housing and the force sensing assembly.

3. The automobile touch switch based on the force sensing assembly according to claim 1, wherein the main board is provided with an MCU main control chip; the MCU main control chip is connected with the force sensing component.

4. The vehicle touch switch of claim 1, wherein the force sensing assembly is a force sensitive resistor.

5. The vehicle touch switch of claim 1, wherein the force sensing assembly is a pressure sensor.