CN115149936A - Mistaken-touch-preventing tail door touch switch and control method thereof - Google Patents
Mistaken-touch-preventing tail door touch switch and control method thereof Download PDFInfo
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- CN115149936A CN115149936A CN202210554890.5A CN202210554890A CN115149936A CN 115149936 A CN115149936 A CN 115149936A CN 202210554890 A CN202210554890 A CN 202210554890A CN 115149936 A CN115149936 A CN 115149936A
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/96—Touch switches
- H03K17/962—Capacitive touch switches
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/96—Touch switches
- H03K2217/9607—Capacitive touch switches
- H03K2217/960755—Constructional details of capacitive touch and proximity switches
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Abstract
The invention discloses a mistaken-touch-preventing tail door touch switch and a control method thereof, and the mistaken-touch-preventing tail door touch switch comprises a through lamp mask, wherein a touch film is arranged inside the through lamp mask, the touch film is connected with a circuit board, the circuit board is connected with a vehicle body controller, and the vehicle body controller is connected with a tail door electric control mechanical switch; the touch film comprises a plurality of touch electrodes which are arranged at equal intervals. A touch film comprising a plurality of touch electrodes is arranged on the surface cover of the penetration lamp, and the opening and closing of the tail door are controlled according to the touch film; the touch electrodes are arranged at equal intervals, so that the interference of a complex environment outside the automobile can be prevented, and the effect of preventing false touch is realized; and the structure of the invention can ensure good sealing performance. The control method of the mistaken touch preventing tail door touch switch is also provided, when the touch electrodes are touched in sequence, the tail door can be triggered and opened, the mistaken touch caused by other obstacles or external environment factors is prevented, and meanwhile, the safety performance of the automobile is improved.
Description
Technical Field
The invention relates to the technical field of vehicle tail gate switches, in particular to a mistaken-touch-prevention tail gate touch switch and a control method thereof.
Background
With the development of science and technology, automobiles are not only vehicles for people, and more users pay more attention to the experience of use. 1. The traditional tail gate switch uses a button, but the button switch has a moving stroke, so that a sealing structure is unstable, after the pressing times reach a certain value, the button sealant is fatigued or even fails, and the influence of pressing hand feeling or even water leakage is caused. 2. In the conventional touch switch, since the touch switch is easily touched by mistake and the external environment of the automobile is complicated, the touch switch is always arranged in the automobile, and the switch outside the automobile cannot use a touch type switch. 3. Traditional tail-gate switch generally arranges on license plate upside tail-gate panel beating to reduce the interference of external environment high and low temperature, wind and rain to the switch, reduce the switch and wade the risk that dirt became invalid because of wading, but this position outward appearance is invisible, and button or touch operation can only open by the blind, and the operation experience feels poor.
The patent literature of china discloses "a touch switch and car of preventing mistake and touching", its publication number is CN113114205A, discloses a touch switch and car of preventing mistake and touching, includes pressing the subassembly, circuit board, first diaphragm and second diaphragm, and first diaphragm sets up on the circuit board, and the second diaphragm is connected with pressing the subassembly, and is equipped with the clearance of predetermineeing the distance between first diaphragm and the second diaphragm. However, the invention has simple structure, still has the risk of false touch, and cannot accurately prevent false touch.
Disclosure of Invention
The invention solves the problems of mistaken touch and difficult operation caused by invisible installation position of the conventional tail door switch, and provides a mistaken touch prevention tail door touch switch and a control method thereof, wherein a touch film comprising a plurality of touch electrodes is arranged on a through lamp face cover, and the tail door is controlled to be opened and closed according to the touch film; the touch electrodes are arranged at equal intervals, so that the interference of a complex environment outside the automobile can be prevented, and the effect of preventing false touch is realized; and the structure of the invention can ensure good sealing performance.
In order to achieve the purpose, the invention adopts the following technical scheme: a mistaken-touch-prevention tail door touch switch comprises a through lamp face cover, wherein a touch film is arranged inside the through lamp face cover, the touch film is connected with a circuit board, the circuit board is connected with a vehicle body controller, and the vehicle body controller is connected with a tail door electric control mechanical switch; the touch film comprises a plurality of touch electrodes which are arranged at equal intervals.
According to the invention, the tail gate switch and the rear through lamp are integrally designed, the through lamp face cover is used as the touch panel, the touch film is arranged inside the through lamp face cover, namely the back surface of the touch panel, the touch film is fixed on the inner side wall of the through lamp in an adhesion mode, the circuit board is also arranged inside the through lamp face cover, other parts such as a rear cover and a bracket are not needed, the cost can be saved, and meanwhile, the sealing property can be ensured; in the invention, the touch film comprises a plurality of touch electrodes which are regularly and equidistantly arranged, the capacitance value of the touch electrodes can be changed after the touch electrodes are pressed, and the tail gate can be opened only after the touch electrodes are sequentially touched; the switch is arranged outside the automobile, so that the touch is convenient; the touch switch can prevent the interference of the complex environment outside the automobile.
Preferably, the through-lamp cover includes a transparent portion and a black portion, and the transparent portion is connected to the touch film; the black portion is used for mounting the circuit board. In the invention, the through lamp cover is a double-color injection molding part, and the appearance defects such as sink marks and the like are generated on the outer side of the through lamp cover if the transparent part is provided with the threaded hole. Therefore, the stability of the structure is ensured by adopting a double-shot molding mode.
Preferably, the black portion is including setting up in the installation department of both sides, the installation department is kept away from one side of transparent portion and is provided with the screw hole, the screw hole with the circuit board passes through the fastener and connects. In the invention, the threaded hole is arranged on one side of the black part for connecting with the circuit board, and a sealing element can be adopted during connection to ensure the sealing performance of the whole penetrating lamp mask.
Preferably, the circuit board includes a connector, the touch film is connected to the connector through a flexible circuit board, and the flexible circuit board includes a first connector connected to the circuit board. In the invention, the first connector of the flexible circuit board is connected with the second connector of the circuit board.
Preferably, the touch electrodes are equal in size and are arranged in a linear array. In the invention, the touch panel area of the touch film is attached with black ink and a pattern of a silk-screen touch switch, and is used as one arrangement mode, the touch electrodes are arranged in a linear array mode, at the moment, the single-side maximum limit angle is alpha degrees, namely only 2 alpha degrees can realize the opening of the switch, and the condition of mistaken touch in the area of 360 degrees to 2 alpha degrees can be prevented; when touching, touch with first touch electrode, second touch electrode, nth touch electrode in order, promptly the finger run through on the lamp face guard do ascending slip operation can, can prevent under the unblock state, because rainwater or other barriers from top to bottom the landing, the mistake that leads to touches the condition.
Preferably, the touch electrodes are equal in size and are arranged in an annular array. In the invention, as another arrangement mode, the touch electrodes are arranged in an annular array, and when the touch electrodes are operated, the touch electrodes are touched sequentially in an annular manner through fingers, so that the touch electrodes are touched.
Preferably, the circuit board comprises a second connector connected with the automobile body controller and a third connector connected with the flexible circuit board, the second connector is connected with a multiplexer, the multiplexer is connected with a capacitance detection chip, the capacitance detection chip is connected with a controller, and the controller is connected with the third connector. In the invention, a multiplexer is arranged in the circuit board and can read the state of each touch electrode, a capacitance detection chip can sample the capacitance value of the touch electrode, and a controller can judge the instant state of the touch switch according to the change of the capacitance value.
A control method of a mistaken-touch-prevention tail door touch switch is suitable for the mistaken-touch-prevention tail door touch switch and comprises the following steps:
s1, judging whether a tail gate touch switch is activated or not, and if so, entering a step S2; if not, touch invalidation is carried out;
s2, judging whether a plurality of touch electrodes of the touch switch are touched in sequence, if so, entering the step S3, and if so, judging whether the touch electrodes of the touch switch are touched in sequence and the touch time reaches a set value; if not, the touch is invalid, and the tail gate maintains the original state;
and S3, opening the tail gate electrically controlled mechanical switch, and opening the tail gate. In the invention, when touch operation is carried out, firstly, the touch switch is required to be ensured to be in an activated state, and when a vehicle runs or is in a locked state, the touch switch of the tail gate is also in a locked state, and all touches are invalid, so that false touch does not exist; after the activation state, the tail gate can be opened by sequentially touching a plurality of touch electrodes penetrating through a switch panel on the lamp cover.
Preferably, in step S2, when a single touch electrode is touched or within a certain distance from a touch object, the capacitance of the touch electrode changes, the capacitance detection chip samples a capacitance value, and the controller determines whether the touch switch is in a touch state or a release state according to the capacitance value. In the invention, the touch electrode is equivalent to a capacitor, and the capacitance value of the touch electrode changes according to the pressure condition.
Preferably, in step S2, when the plurality of touch electrodes are touched, the multiplexer periodically reads states of the plurality of electrodes, and the controller determines a state, a sequence, and a time delay of each touch electrode. In the invention, when a plurality of touch electrodes are touched for 0.1-0.5 seconds in sequence, the touch switch needs to execute an opening command and output a signal to the automobile body controller, and the automobile body controller outputs the signal to the tail gate electric control mechanical switch to realize the operation of opening the tail gate, otherwise, the tail gate electric control mechanical switch does not act, thereby achieving the effect of preventing mistaken touch.
The beneficial effects of the invention are: the invention relates to a mistaken touch preventing tail door touch switch, wherein a touch film comprising a plurality of touch electrodes is arranged on a surface cover of a penetration lamp, and the opening and closing of a tail door are controlled according to the touch film; the touch electrodes are arranged at equal intervals, so that the interference of a complex environment outside the automobile can be prevented, and the effect of preventing false touch is realized; and the structure of the invention can ensure good sealing performance. According to the control method, when the touch electrodes are touched in sequence, the tail gate can be triggered and opened, so that mistaken touch caused by other obstacles or external environment factors is prevented, and meanwhile, the safety performance of the automobile is improved.
Drawings
FIG. 1 is a schematic structural diagram of a mis-touch preventing tail gate touch switch of the present invention;
FIG. 2 is a schematic structural diagram of a touch membrane of a mis-touch prevention tail gate touch switch of the present invention;
FIG. 3 is a schematic diagram of an arrangement of touch electrodes of a mis-touch preventing tail gate touch switch of the present invention;
FIG. 4 is a schematic view of another arrangement of the touch electrodes of the anti-false-touch tail gate touch switch of the present invention;
FIG. 5 is a schematic circuit diagram of a mis-touch preventing tail gate touch switch of the present invention;
FIG. 6 is a flow chart of a method for controlling a mis-touch preventing tail gate touch switch according to the present invention;
FIG. 7 is a schematic structural diagram of another embodiment of a mis-touch preventing tail gate touch switch of the present invention;
the touch screen lamp 1 penetrates through the lamp cover 11, the transparent part 12, the black part 2, the touch film 21, the touch electrode 3, the circuit board 31, the connector 4, the rear shell 5 and the sealing ring.
Detailed Description
The first embodiment is as follows:
the embodiment provides a mistaken touch preventing tail door touch switch, and referring to fig. 1, fig. 2 and fig. 5, the mistaken touch preventing tail door touch switch comprises a penetrating lamp cover 1, a touch film 2 is arranged inside the penetrating lamp cover 1, the touch film 2 is connected with a circuit board 3, the circuit board 3 is connected with a vehicle body controller, and the vehicle body controller is connected with a tail door electric control mechanical switch; the touch film 2 includes a plurality of touch electrodes 21, and the touch electrodes 21 are disposed at equal intervals.
Referring to fig. 1, the through lamp cover 1 includes a transparent part 11 and a black part 12, the transparent part 11 being connected to the touch film 2; the black portion 12 is used for mounting the circuit board 3.
Referring to fig. 1, the black portion 12 includes mounting portions disposed at both sides, and a threaded hole is disposed at one side of the mounting portion away from the transparent portion 11 and connected to the circuit board 3 by a fastener.
Referring to fig. 1 and 5, the circuit board 3 includes a socket connector 31, and the touch film 2 is connected to the socket connector 31 through a flexible circuit board including a first connector connected to the circuit board 3.
Referring to fig. 3, the plurality of touch electrodes 21 are equal in size and arranged in a linear array.
Referring to fig. 4, the plurality of touch electrodes 21 are equal in size and arranged in a circular array.
Referring to fig. 5, the circuit board 3 includes a second connector and a third connector, the third connector is connected to the vehicle body controller, the second connector is connected to the flexible circuit board, the second connector is connected to a multiplexer, the multiplexer is connected to a capacitance detection chip, the capacitance detection chip is connected to a controller, and the controller is connected to the third connector.
According to the invention, the tail gate switch and the rear through lamp are integrally designed, the through lamp face cover is used as the touch panel, the touch film is arranged inside the through lamp face cover, namely the back surface of the touch panel, the touch film is fixed on the inner side wall of the through lamp in an adhesion mode, the circuit board is also arranged inside the through lamp face cover, other parts such as a rear cover and a bracket are not needed, the cost can be saved, and meanwhile, the sealing property can be ensured; according to the invention, the touch film comprises a plurality of touch electrodes which are regularly and equidistantly arranged, the capacitance value of the touch electrodes can be changed after the touch electrodes are pressed, and the tail gate can be opened only after the touch electrodes are sequentially touched; the switch is arranged outside the automobile, so that the touch is convenient; the touch switch can prevent the interference of the complex environment outside the automobile.
In the invention, the through lamp cover is a double-color injection molding part, and the appearance defects such as sink marks and the like are generated on the outer side of the through lamp cover if the transparent part is provided with the threaded hole. Therefore, the double-shot injection molding mode is adopted, and the stability of the structure is ensured.
In the invention, the threaded hole is arranged on one side of the black part for connecting with the circuit board, and a sealing element can be adopted during connection to ensure the sealing performance of the whole penetrating lamp mask.
In the invention, the first connector of the flexible circuit board is connected with the second connector of the circuit board.
In the invention, the touch panel area of the touch film is attached with black ink and a pattern of a silk-screen touch switch, and as one of the arrangement modes, the touch electrodes are arranged in a linear array manner, at the moment, the single-side maximum limit angle is alpha degrees, namely only 2 alpha degrees can realize the opening of the switch, and the condition of mistaken touch in the area of 360-2 alpha degrees can be prevented; when touching, touch with first touch electrode, second touch electrode, nth touch electrode in order, promptly the finger run through on the lamp face guard do ascending slip operation can, can prevent under the unblock state, because rainwater or other barriers from top to bottom the landing, the mistake that leads to touches the condition.
In the invention, as another arrangement mode, the touch electrodes are arranged in an annular array, and when the touch electrodes are operated, the touch electrodes are sequentially touched by fingers in an annular mode, so that the touch electrodes are required to be touched.
In the invention, a multiplexer is arranged in the circuit board and can read the state of each touch electrode, a capacitance detection chip can sample the capacitance value of the touch electrode, and a controller can judge the instant state of the touch switch according to the change of the capacitance value.
The embodiment also provides a control method of a wrong touch prevention tail gate touch switch, which is suitable for the wrong touch prevention tail gate touch switch, and referring to fig. 6, the method mainly includes the following steps, step S1, judging whether the tail gate touch switch is activated, if yes, entering step S2; if not, the touch is invalid; s2, judging whether a plurality of touch electrodes 21 of the touch switch are touched in sequence, if so, entering S3, wherein the touch time reaches a set value; if not, the touch is invalid, and the tail gate maintains the original state; and S3, opening the tail gate electric control mechanical switch, and opening the tail gate. In the invention, when touch operation is carried out, firstly, the touch switch is required to be ensured to be in an activated state, and when a vehicle runs or is in a locked state, the touch switch of the tail gate is also in a locked state, and all touches are invalid, so that false touch does not exist; after the activation state, the tail gate can be opened by sequentially touching a plurality of touch electrodes penetrating through a switch panel on the lamp cover.
In step S2, when a single touch electrode 21 is touched or within a certain distance from a touch object, the capacitance of the touch electrode (21) changes, the capacitance detection chip samples the capacitance value, and the controller determines whether the touch switch is in a touch state or a release state according to the capacitance value. In the invention, the touch electrode is equivalent to a capacitor, and the capacitance value of the touch electrode changes according to the pressure condition.
In step S2, when the plurality of touch electrodes 21 are touched, the multiplexer periodically reads the states of the plurality of electrodes, and the controller determines the state, sequence, and delay of each touch electrode 21. In the invention, when a plurality of touch electrodes are touched for 0.1-0.5 seconds in sequence, the touch switch needs to execute an opening command and output a signal to the automobile body controller, and the automobile body controller outputs the signal to the tail gate electric control mechanical switch to realize the operation of opening the tail gate, otherwise, the tail gate electric control mechanical switch does not act, thereby achieving the effect of preventing mistaken touch.
The second embodiment:
the embodiment further provides a mis-touch prevention tail gate touch switch, which mainly comprises a through lamp cover 1, a touch film 2, a circuit board 3, a rear shell 4 and a sealing ring 5, with reference to fig. 7. The through lamp shade 1 is a two-shot injection molded part comprising a transparent part 11 and a black part 12. A layer of touch film 2 is adhered to the back of the lamp cover 1, and the touch film 2 is connected with a connector 31 on the circuit board 3 through a flexible circuit board. The rear shell 4 and the through lamp face shield 1 are sealed by a sealing ring 5 in interference fit, and are fixed with the through lamp face shield 1 through screws.
In addition, for the touch form, a layer of strain gauge can be added below the touch film 2, when the touch requirement is met, a certain force is exerted by touch, the strain gauge receives a pressure signal and then feeds the pressure signal and the signal of the touch electrode back to the chip, and the chip can execute naming after reading the signal at the same time. The stress sheet can be designed to increase the pressure requirement on the basis of touch so as to prevent the false touch caused by the touch of dust or foreign objects.
The above embodiments are further illustrated and described in order to facilitate understanding of the invention, and no unnecessary limitations are to be understood therefrom, and any modifications, equivalents, and improvements made within the spirit and principle of the invention should be included therein.
Claims (10)
1. The mistaken-touch-prevention tail gate touch switch is characterized by comprising a through lamp face shield (1), wherein a touch film (2) is arranged inside the through lamp face shield (1), the touch film (2) is connected with a circuit board (3), the circuit board (3) is connected with a vehicle body controller, and the vehicle body controller is connected with a tail gate electric control mechanical switch; the touch film (2) comprises a plurality of touch electrodes (21), and the touch electrodes (21) are arranged at equal intervals.
2. The touch switch of the tail door for preventing the false touch according to claim 1, wherein the through lamp cover (1) comprises a transparent part (11) and a black part (12), and the transparent part (11) is connected to the touch film (2); the black part (12) is used for mounting the circuit board (3).
3. The touch switch of the tail door capable of preventing the false touch according to claim 2, wherein the black part (12) comprises mounting parts arranged on two sides, a threaded hole is arranged on one side of the mounting part, which is far away from the transparent part (11), and the threaded hole is connected with the circuit board (3) through a fastener.
4. The touch switch of the anti-false-touch tail door of claim 1 or 2, wherein the circuit board (3) comprises a connector (31), the touch membrane (2) is connected to the connector (31) through a flexible circuit board, and the flexible circuit board comprises a first connector connected to the circuit board (3).
5. The anti-false-touch tail-gate touch switch of claim 2, wherein the touch electrodes (21) are equal in size and are arranged in a linear array.
6. The touch switch of claim 2, wherein the touch electrodes (21) are equal in size and are arranged in an annular array.
7. The touch switch of claim 4, wherein the circuit board (3) comprises a second connector connected with the flexible circuit board and a third connector connected with the vehicle body controller, the second connector is connected with a multiplexer, the multiplexer is connected with a capacitance detection chip, the capacitance detection chip is connected with a controller, and the controller is connected with the third connector.
8. A control method of a mistaken-touch-preventing tail door touch switch, which is suitable for the mistaken-touch-preventing tail door touch switch in claims 1-7, and is characterized by comprising the following steps:
s1, judging whether a tail gate touch switch is activated or not, and if so, entering a step S2; if not, touch invalidation is carried out;
s2, judging whether a plurality of touch electrodes (21) of the touch switch are touched in sequence, if so, entering the step S3, and if so, judging whether the touch electrodes are touched sequentially and if not, judging whether the touch time reaches a set value; if not, the touch is invalid, and the tail gate maintains the original state;
and S3, opening the tail gate electrically controlled mechanical switch, and opening the tail gate.
9. The method for controlling the anti-false-touch tail gate touch switch according to claim 8, wherein in step S2, when a single touch electrode (21) is touched or within a certain distance from a touch object, the capacitance of the touch electrode (21) changes, the capacitance detection chip samples a capacitance value, and the controller determines whether the touch switch is in a touch state or a release state according to the capacitance value.
10. The method for controlling the anti-false-touch tail gate touch switch according to claim 9, wherein in step S2, when the plurality of touch electrodes (21) are touched, the multiplexer periodically reads the states of the plurality of electrodes, and the controller determines the state, sequence and time delay of each touch electrode (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210554890.5A CN115149936A (en) | 2022-05-19 | 2022-05-19 | Mistaken-touch-preventing tail door touch switch and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210554890.5A CN115149936A (en) | 2022-05-19 | 2022-05-19 | Mistaken-touch-preventing tail door touch switch and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115149936A true CN115149936A (en) | 2022-10-04 |
Family
ID=83406795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210554890.5A Pending CN115149936A (en) | 2022-05-19 | 2022-05-19 | Mistaken-touch-preventing tail door touch switch and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115149936A (en) |
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2022
- 2022-05-19 CN CN202210554890.5A patent/CN115149936A/en active Pending
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