Switch and vehicle-mounted electronic equipment

Abstract

The invention relates to the technical field of electronic equipment, and discloses a switch and vehicle-mounted electronic equipment, and the switch comprises an adjusting part which is provided with at least two reflective areas with different reflectivity; the light emitting component is used for emitting light to the light reflecting area; the light receiving component is used for receiving the reflected light reflected by each light reflecting area and generating a corresponding reflected signal according to each reflected light; and the switching module is electrically connected with the light receiving component, and the switching module is used for performing electrical state switching according to the reflected signals. According to the invention, the light emitting part can emit the light to the reflective area, the reflective part can receive the reflected light reflected by the reflective area, the corresponding reflected signal is generated and transmitted to the switching module, and then the switching module performs electrical state switching according to the received reflected signals. Compared with the prior art, the device is replaced by a light form, so that friction is reduced, and the service life of the device is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a switch and a vehicle-mounted electronic equipment. Background Art

[0002] At present, switches can include push-type and knob-type switches. Regardless of the type of switch, a mechanical structure is generally used to detect whether the user needs to switch the electrical state. That is, when the user presses or rotates, the switch knob part directly contacts the switch contact point part through the mechanical structure to achieve detection, thereby completing the switching of the electrical state. However, when pressing or rotating the switch, it is necessary to directly contact the contact point, which causes friction, resulting in a low service life of the device. Summary of the invention

[0003] The main purpose of the present application is to provide a switch and an in-vehicle electronic device, aiming to solve the technical problem that the existing switch needs to directly contact the contact point during operation, thereby causing friction and resulting in a short service life of the device.

[0004] To achieve the above object, the present application provides a switch, the switch comprising:

[0005] An adjusting portion, wherein the adjusting portion is provided with at least two reflective areas with different reflectivity;

[0006] A light emitting component, the light emitting component is used to emit light to the reflective area;

[0007] A light receiving component, the light receiving component is used to receive the reflected light reflected by each of the reflective areas, and generate a corresponding reflection signal according to each of the reflected lights;

[0008] A switching module is electrically connected to the light receiving component, and is used to switch the electrical state according to each of the reflection signals.

[0009] In one embodiment, the adjusting portion includes a rotating portion and a rotating shaft connected to each other;

[0010] Each of the reflective areas is arranged along the circumference of the rotating shaft.

[0011] In one embodiment, the reflective regions are arranged in sequence along the rotating shaft, and the sum of the lengths of the reflective regions along the circumference of the rotating shaft is equal to the circumference of the rotating shaft.

[0012] In one embodiment, the switching module is further used to determine current information according to each of the reflected signals, and determine a rotation feature according to the current information, wherein the rotation feature includes at least one of a rotation direction, a rotation angle, or a rotation angular velocity;

[0013] The switching module is further used to switch the electrical state according to the rotation characteristics.

[0014] In one embodiment, the adjusting portion comprises a pressing portion and a rotating shaft connected to each other, and the rotating shaft moves synchronously with the pressing portion;

[0015] Each of the reflective areas is arranged along the axial direction of the rotating shaft.

[0016] In one embodiment, the switching module is further used to determine current information according to each of the reflection signals, and determine a pressing feature according to the current information, wherein the pressing feature includes a pressing depth or a pressing speed;

[0017] The switching module is further used to switch the electrical state according to the pressing feature.

[0018] In one embodiment, each of the reflective regions includes at least two reflective units having different reflectivities and arranged along the circumference of the rotation axis.

[0019] In one embodiment, the switch further comprises an adjustment component;

[0020] The adjustment component is arranged on the light path between the light emitting component and the light reflecting area;

[0021] The adjustment component is used to adjust the light in parallel and transmit the adjusted light to each of the reflective areas.

[0022] In one embodiment, the switching module includes: an amplification unit, a conversion unit and a switching unit;

[0023] The amplifying unit is electrically connected to the light receiving component and the converting unit respectively, and the converting unit is electrically connected to the switching unit;

[0024] The amplifying unit is used to amplify each of the reflected signals and transmit each amplified reflected signal to the converting unit;

[0025] The conversion unit is used to perform analog-to-digital conversion on each of the amplified reflected signals, and transmit each converted reflected signal to the switching unit;

[0026] The switching unit is used to switch the electrical state according to each of the converted reflection signals.

[0027] In addition, to achieve the above-mentioned purpose, the present application also provides an in-vehicle electronic device, which includes the switch described above.

[0028] The present application provides a switch and an on-vehicle electronic device, the switch comprising: an adjustment part, the adjustment part is provided with at least two reflective areas with different reflectivity; a light emitting component, the light emitting component is used to emit light to the reflective area; a light receiving component, the light receiving component is used to receive the reflected light reflected by each of the reflective areas, and generate a corresponding reflection signal according to each of the reflected light; a switching module, the switching module is electrically connected to the light receiving component, and the switching module is used to switch the electrical state according to each of the reflected signals. Since the present application is provided with at least two reflective areas with different reflectivity on the adjustment part, when in use, the light emitting component emits light to the reflective area, and the reflected light reflected by the reflective area can be received by the reflective component, and a corresponding reflection signal is generated and transmitted to the switching module. Due to the different reflectivity, the intensity of the reflected light is different, and the reflection signal is also different, so the switching module can switch the electrical state according to each received reflection signal. Compared with the existing electrical state switching operation realized by a mechanical structure, the present application replaces it with the form of light, thereby reducing friction and improving the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0030] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0031] Figure 1 This is a schematic diagram of the structure of the first embodiment of the switch of the present application;

[0032] Figure 2 This is a circuit schematic diagram of a switching module in the first embodiment of the switch of this application;

[0033] Figure 3 A side view of the adjustment portion of the second embodiment of the switch of the present application;

[0034] Figure 4 A top view of the adjustment portion in the second embodiment of the switch of the present application;

[0035] Figure 5 This is a schematic diagram of a reflection signal in the second embodiment of the switch of the present application;

[0036] Figure 6 This is a side view of the adjustment part in the third embodiment of the switch of the present application.

[0037] Description of Figure Numbers:

[0038]

[0039]

[0040] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0041] It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0042] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0043] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0044] In addition, the descriptions of "first", "second", etc. in this application are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0045] It is understandable that currently, switches can include push-type and knob-type switches. However, no matter which type of switch it is, a mechanical structure is generally used to detect whether the user has a need to switch the electrical state. That is, when the user presses or rotates, the switch knob part directly contacts the switch contact point part through the mechanical structure to achieve detection, thereby completing the switching of the electrical state. However, when pressing or rotating the switch, it is necessary to directly contact the contact point, which results in friction, resulting in a low service life of the device.

[0046] Therefore, in order to solve the above defects, this embodiment provides a switch, which can be provided with at least two reflective areas with different reflectivity on the adjustment part, and then when in use, the light emitting component emits light to the reflective area, and the reflective component can receive the reflected light reflected by the reflective area, and generate a corresponding reflection signal to transmit to the switching module. Due to the different reflectivity, the intensity of the reflected light is different, and the reflection signal is also different, so the switching module can switch the electrical state according to each received reflection signal. Compared with the existing electrical state switching operation realized by mechanical structure, this embodiment replaces it with light, thereby reducing friction and improving the service life of the device.

[0047] For ease of understanding, the following combination Figures 1 to 6 The switch provided in the embodiment of the present application is introduced in detail.

[0048] Reference Figure 1 , Figure 1 This is a schematic diagram of the structure of the first embodiment of the switch of the present application. The first embodiment of the switch of the present application is proposed. Figure 1 As shown, in this embodiment, the switch includes:

[0049] An adjusting portion 1, wherein the adjusting portion 1 is provided with at least two reflective areas with different reflectivities;

[0050] A light emitting component 2, wherein the light emitting component 2 is used to emit light toward the reflective area;

[0051] A light receiving component 3, the light receiving component 3 is used to receive the reflected light reflected by each of the reflective areas, and generate a corresponding reflection signal according to each of the reflected lights;

[0052] A switching module 4, wherein the switching module 4 is electrically connected to the light receiving component 3, and the switching module 4 is used for switching the electrical state according to each of the reflection signals.

[0053] It is understandable that the switch in this embodiment may be a knob switch or a push switch, and of course may be a switch that implements electrical state switching in other ways, which is not limited in this embodiment.

[0054] It should be understood that the adjustment part 1 can be a component that interacts with the user to realize press or rotation detection, such as a knob, etc. In actual use, if the user needs to switch the electrical state (such as switch, shift, etc.), the user can press or rotate the adjustment part 1 to switch the electrical state.

[0055] The above-mentioned light emitting component 2 can be a component for emitting light, and can include a light emitting diode (LED) device. Of course, light can also be emitted through other devices. This embodiment uses LED for illustration. The above-mentioned light receiving component 3 can be a component for receiving light, such as a photosensitive diode, etc. Of course, it can also be other devices with similar functions. This embodiment uses a photosensitive diode for illustration. The above-mentioned light emitting component 2 can be set at a position where light can be emitted onto the luminescent material, and the above-mentioned light receiving component 3 can be set at a position where reflected light can be received. Specifically, the positions of the light emitting component 2 and the light receiving component 3 are not limited in this embodiment.

[0056] like Figure 1 As shown, the adjusting portion 1 of this embodiment may be provided with at least two reflective areas with different reflectivity, which may be attached to the outer peripheral wall of the adjusting portion 1 by coating or pasting, for example, materials with different reflectivity are coated on the outer peripheral wall of the adjusting portion 1. Of course, other methods may also be used, such as forming the adjusting portion 1 with materials with different reflectivity, etc., which are not limited in this embodiment.

[0057] At the same time, when setting the reflective area, the area of ​​the reflective area of ​​each reflectivity in this embodiment can be set according to the actual situation, and the number of specific reflectivities can also be set according to needs. This embodiment adopts three reflectivities (i.e. Figure 1 The reflectivity corresponding to the reflective area a is recorded as reflectivity a, the reflectivity corresponding to the reflective area b is recorded as reflectivity b, and the reflectivity corresponding to the reflective area c is recorded as reflectivity c. The reflective areas are arranged in the same area and are uniformly arranged on the outer peripheral wall of the rotating shaft 12 in sequence.

[0058] It should be emphasized that the setting order of each reflective area can also be set according to needs. For example, when setting reflective areas with two reflectivities (reflectivity a and reflectivity b), the clockwise setting order can be reflectivity a, reflectivity b, reflectivity a, reflectivity b; if three reflectivities (reflectivity a, reflectivity b and reflectivity c) are set, the clockwise setting order can be reflectivity a, reflectivity b, reflectivity c, or reflectivity b, reflectivity a, reflectivity c, and of course, reflectivity c, reflectivity b, reflectivity a. In this embodiment, reflectivity a, reflectivity b, reflectivity c (i.e., Figure 1 ) for explanation.

[0059] The switching module 4 may be a module capable of identifying a reflection signal and implementing electrical state switching according to the reflection signal, and may include, for example, an analog-to-digital converter and a processor, and may also include other components, which are not limited in this embodiment.

[0060] Furthermore, in actual use, the light emitting component 2 can continuously emit light to the reflective area of ​​the adjustment part 1, and the light receiving component 3 can continuously receive the reflected light, and generate a corresponding reflection signal to transmit to the switching module 4. When the user rotates or presses the adjustment part 1, the position of the light projected to the light-emitting area changes, the intensity of the reflected light received by the light receiving component 3 changes, and the generated reflection signal changes. Then the switching module 4 determines that the user has pressed or rotated according to the change of the reflection signal, thereby performing an electrical state switch. Compared with the existing electrical state switching operation achieved through a mechanical structure, this embodiment replaces it with a light form, thereby reducing friction and increasing the service life of the device.

[0061] As another implementation, the above-mentioned reflective area can also be arranged on the inner peripheral wall of the adjusting part 1, that is, the adjusting part 1 is arranged as a hollow structure, and the light emitting component 2 and the light receiving component 3 are arranged inside the adjusting part 1 together.

[0062] As another implementation method, the above-mentioned adjustment part 1 can also be set to be light-transmitting, and be provided with light-transmitting areas (i.e., the above-mentioned reflective areas) with different transmittances (i.e., the above-mentioned reflectances), and then the light emitting component 2 or the light receiving component 3 is arranged outside the adjustment part 1, and the other component is arranged inside the adjustment part 1. The above-mentioned function can also be achieved. The specific structure can be set according to the actual situation, and this embodiment does not limit this.

[0063] Further, in order to improve the light quality, continue as Figure 1 As shown, in this embodiment, the switch further includes an adjustment component 5;

[0064] The adjustment component 5 is arranged on the light path between the light emitting component 2 and the light reflecting area;

[0065] The adjusting component 5 is used to adjust the light in parallel and transmit the adjusted light to each of the reflective areas.

[0066] It should be noted that the adjustment component 5 may be a component for parallel adjustment of light, such as a convex lens, etc., and this embodiment does not limit this.

[0067] In a specific implementation, this embodiment may be provided with an adjustment component 5 on the optical path between the light emitting component 2 and the reflective area. Then, when the light emitting component 2 transmits the emitted light to the adjustment component 5, the adjustment component 5 may first adjust the light in parallel, and then transmit the parallel adjusted light to each reflective area, thereby making the quality of the light projected to the reflective area higher and facilitating subsequent detection.

[0068] Similarly, in this embodiment, the above-mentioned adjustment component 5 (not shown in the figure) can be set on the optical path between each reflective area and the light receiving component 3, and the reflected light can also be adjusted in parallel, and then the reflected light after parallel adjustment can be transmitted to the light receiving component 3, so as to improve the quality of the reflected light, which can also facilitate subsequent detection.

[0069] Furthermore, considering that the reflected signal generated by the light receiving component 3 is an analog signal and the signal is small, in order to further facilitate subsequent detection, refer to Figure 2 , Figure 2 This is a circuit diagram of the switching module 4 in the first embodiment of the switch of this application. Figure 2 As shown, in this embodiment, the switching module 4 includes: an amplification unit 41, a conversion unit 42 and a switching unit 43;

[0070] The amplifying unit 41 is electrically connected to the light receiving component 3 and the converting unit 42 respectively, and the converting unit 42 is electrically connected to the switching unit 43;

[0071] The amplifying unit 41 is used to amplify each of the reflected signals and transmit each amplified reflected signal to the converting unit 42;

[0072] The conversion unit 42 is used to perform analog-to-digital conversion on each of the amplified reflection signals, and transmit each converted reflection signal to the switching unit 43;

[0073] The switching unit 43 is used to switch the electrical state according to each of the converted reflection signals.

[0074] It is understandable that the amplifying unit 41 may be a unit for amplifying the reflected signal, such as an operational amplifier U, etc., and may also be other units with similar functions, which are not limited in this embodiment. The converting unit 42 may be a unit for converting an analog signal into a digital signal, such as an analog-to-digital converter (ADC), etc., and may also be other units with similar functions, which are not limited in this embodiment.

[0075] It should be understood that the switching unit 43 may be a unit for switching electrical states, such as a processor or a microcontroller unit (MCU), etc., which is not limited in this embodiment.

[0076] In a specific implementation, when the amplifying unit 41 receives the reflection signal generated by the light receiving component 3, it can amplify the current of the reflection signal, and after converting the amplified current into a voltage, transmit the obtained reflection signal to the conversion unit 42. Since the amplified reflection signal is an analog signal, the conversion unit 42 can perform analog-to-digital conversion on the amplified reflection signal into a digital signal, and transmit the obtained converted reflection signal to the switching unit 43. The switching unit 43 can detect pressing or rotation according to the change of the converted reflection signal, and complete the electrical state switching.

[0077] Furthermore, if Figure 2 As shown, in this embodiment, the above-mentioned photoelectric receiving component includes: a photosensitive diode VD; an anode of the photosensitive diode VD and a power supply (ie Figure 2 Vbias) is connected, and the cathode of the photodiode VD is connected to the amplification unit 41.

[0078] The amplifying unit 41 includes: an operational amplifier U, a first resistor R1, and a second resistor R2; the inverting input terminal of the operational amplifier U (i.e., the second pin of the operational amplifier U) can be connected to the cathode of the photosensitive diode VD and the first end of the first resistor R1 respectively, the non-inverting input terminal of the operational amplifier U (i.e., the third pin of the operational amplifier U) can be connected to the ground terminal of the operational amplifier U (i.e., the eighth pin of the operational amplifier U), the ground terminal of the operational amplifier U is grounded, and the power supply terminal of the operational amplifier U (i.e., the fourth pin of the operational amplifier U) is connected to the power supply (i.e., Figure 2 VDD), the output end of the operational amplifier U (ie, the first pin of the operational amplifier U) is respectively connected to the second end of the first resistor R1, the first end of the second resistor R2 and the conversion unit 42, and the second end of the second resistor R2 is grounded.

[0079] Furthermore, in actual use, after receiving the reflected light, the photodiode VD can generate a reflected signal and transmit it to the inverting input terminal of the operational amplifier U. After amplification, the operational amplifier U can transmit the obtained amplified reflected signal through the output terminal of the operational amplifier U to the conversion module for analog-to-digital conversion, and then transmit the converted reflected signal to the switching unit 43 for electrical state switching.

[0080] In this embodiment, the light emitting component 2 can continuously emit light to the reflective area of ​​the adjustment part 1, and the light receiving component 3 can continuously receive the reflected light, and generate a corresponding reflection signal to transmit to the switching module 4. When the user rotates or presses the adjustment part 1, the position of the light projected to the light-emitting area changes, the intensity of the reflected light received by the light receiving component 3 changes, and the generated reflection signal changes. Then the switching module 4 determines that the user has pressed or rotated according to the change of the reflection signal, thereby performing electrical state switching. Compared with the existing electrical state switching operation achieved through a mechanical structure, this embodiment replaces it with light, thereby reducing friction and increasing the service life of the device.

[0081] Reference Figure 3 , Figure 3 This is a side view of the adjustment part 1 in the second embodiment of the switch of the present application. Based on the above-mentioned first embodiment, the second embodiment of the switch of the present application is proposed.

[0082] In order to realize the knob-type function, such as Figure 3 As shown, in this embodiment, the adjusting portion 1 includes a rotating portion 11a and a rotating shaft 12 connected to each other;

[0083] Each of the reflective areas is arranged along the circumference of the rotating shaft 12 .

[0084] It should be noted that the rotating part 11a can be fixedly connected to the rotating shaft 12, and the rotating part 11a can be a part operated by the user to move the rotating shaft 12, such as a button cap. The switch in this embodiment can also include a base (not shown in the figure), one end of the rotating shaft 12 is fixedly connected to the rotating part 11a, and the other end can be rotatably connected to the base. Then, when the user needs to perform operations such as switching or adjustment, the rotating part 11a can be rotated, thereby driving the rotating shaft 12 to rotate together. Since the reflective area is arranged along the circumference of the rotating shaft 12, the intensity of the reflected light will be different due to the different reflectivity of the reflective area where the light is irradiated, thereby realizing the function of a rotary switch.

[0085] Furthermore, considering that if the reflective area is only provided at a part of the outer peripheral wall of the rotating shaft 12, a limit position needs to be provided to prevent the light from being unable to irradiate the reflective area when the user rotates. Figure 4 , Figure 4 FIG. 1 is a top view of the adjustment portion 1 in the second embodiment of the switch of the present application; Figure 4 As shown, the reflective regions are arranged in sequence along the rotating shaft 12 , and the sum of the lengths of the reflective regions along the circumference of the rotating shaft 12 is equal to the circumference of the rotating shaft 12 .

[0086] It is understandable that in this embodiment, the outer wall of the shaft 12 can be set as a reflective area all around, that is, the sum of the lengths of the reflective areas along the axial direction of the shaft 12 is consistent with the circumference of the shaft 12. The refractive indexes of the reflective areas are arranged in sequence, and the widths of the reflective areas can be set to be consistent, or inconsistent, which is not limited in this embodiment. Therefore, when using, the user does not need to consider the limit situation, and the knob function can be realized at any rotation angle.

[0087] Furthermore, considering that after the light hits the reflective area, it can reflect light of different intensities, and then the photodiode VD can generate reflection signals of different current sizes, refer to Figure 5 , Figure 5 This is a schematic diagram of the reflection signal in the second embodiment of the switch of this application. If the reflectivity is set as reflectivity a, reflectivity b and reflectivity c in sequence, the current changes formed by the light irradiating the reflectivity a, reflectivity b and reflectivity c in sequence are as follows Figure 5 As shown, Figure 5 (a) is a schematic diagram of the reflected signal when the user rotates the adjustment part 1 clockwise. Figure 5 (b) is a schematic diagram of the reflected signal when the user rotates counterclockwise.

[0088] according to Figure 5 (a) It is not difficult to see that when the user rotates clockwise, the current of the reflected signal changes with time to the current corresponding to the reflectivity a (i.e. Figure 5 (a) reflectivity a), reflectivity b (i.e. Figure 5 (a) The current corresponding to the reflectivity b) and the current corresponding to the reflectivity c (i.e. Figure 5 The reflectivity in (a) changes cyclically; according to Figure 5 (b) It is not difficult to see that when the user rotates counterclockwise, the current of the reflected signal changes with time to the current corresponding to the reflectivity c (i.e. Figure 5 (b) reflectivity c), reflectivity b (i.e. Figure 5 (b) The current corresponding to the reflectivity b) and the current corresponding to the reflectivity a (i.e. Figure 5 The reflectivity in (b) and (c) varies cyclically.

[0089] Furthermore, in actual detection, the present embodiment can determine the specific rotation direction according to different current changes, and in order to realize the detection of the rotation angle, each reflective area can be set to the same width, and the detection of the rotation angle can be realized according to the number of detected changes. Similarly, the angular velocity of the rotation can be calculated in combination with the change time, which is specifically:

[0090] The switching module 4 is further used to determine current information according to each of the reflected signals, and determine a rotation feature according to the current information, wherein the rotation feature includes at least one of a rotation direction, a rotation angle or a rotation angular velocity;

[0091] The switching module 4 is further used to switch the electrical state according to the rotation characteristics.

[0092] It should be understood that the above-mentioned current information may be information related to the current of the reflected signal, which may be the current value, the number of current changes or the duration of current changes, etc. In the present embodiment, when the switch implements different electrical state switching according to different rotation directions, the above-mentioned switching module 4 (specifically, it may be the switching unit 43 in the switching module 4) may store a preset mapping relationship table, and the preset mapping relationship table may store current values ​​corresponding to different reflectivities. Furthermore, in actual use, when the user rotates the adjustment part 1, the switching module 4 may determine the current value of the reflected signal at each moment according to the reflected signal after receiving the reflected signal, and by querying the preset mapping relationship table, it can be determined which reflective area is currently irradiated, and then according to the change of the reflective area, it can be determined whether it is clockwise or counterclockwise rotation. For example, if the current change corresponding to the clockwise rotation is as follows: Figure 5 As shown in (a), the corresponding current change for counterclockwise rotation is as follows Figure 5 As shown in (b), after detecting that the current changes are the current corresponding to the reflectivity a, the current corresponding to the reflectivity b and the current corresponding to the reflectivity c, the switching module 4 can determine that the light currently irradiates the reflective area corresponding to the reflectivity a, the reflective area corresponding to the reflectivity b and the reflective area corresponding to the reflectivity c, and then it can be determined that the adjustment part 1 is currently rotated clockwise, and the switching module 4 can perform the corresponding electrical state switching operation according to the rotation characteristic of the clockwise rotation.

[0093] Similarly, when the switch realizes different electrical state switching according to different rotation angles, the switching module 4 may store the number of reflective areas (for example Figure 4 14 parts), and then according to the number of changes in the current of the reflected signal, the number of reflective areas that the light passes through during rotation (that is, the number of changes in the current of the detected reflected signal) is determined to obtain the rotation angle. Exemplarily, if there are three reflectivities, the axial length of the rotating shaft 12 is divided into integer multiples of 3, assuming that the number of divisions is 3N, and each refractive index is N parts, and then when the user rotates the adjustment part 1, if the number of changes in the current of the reflected signal detected by the switching module 4 is 1 time (for example, from reflectivity a to reflectivity b), then the rotation angle A = (1 / 3N) × 2π.

[0094] Similarly, when the switch realizes different electrical state switching according to different rotational angular velocities, the number of reflective areas can be stored in the switching module 4. In actual use, the number of parts passing through the reflective area can be determined according to the reflection signal, and the rotation angle can be obtained by combining the duration of the current change of the reflection signal. For example, if the number of parts divided into 3N reflective areas is 3N, assuming that the number of current changes detected is 1 (for example, from reflectivity a to reflectivity b), and the duration of the current change is t, then the rotational angular velocity w = (1 / 3N) × 2π × (1 / t).

[0095] It should also be emphasized that this embodiment can not only switch the electrical state according to the rotation direction, rotation angle and rotation angular velocity respectively, but also switch the three together, which will not be described in detail in this embodiment. In addition, in order to facilitate detection, this embodiment can set the difference in reflectivity of each reflective area to be not close, which can be selected according to the actual needs of the user.

[0096] Reference Figure 6 , Figure 6 This is a side view of the adjustment part 1 in the third embodiment of the switch of the present application. Based on the above embodiments, the third embodiment of the switch of the present application is proposed.

[0097] To achieve push-button functions, such as Figure 6 As shown, in this embodiment, the adjusting portion 1 includes a pressing portion 11b and a rotating shaft 12 connected to each other, and the rotating shaft 12 moves synchronously with the pressing portion 11b;

[0098] Each of the reflective areas is arranged along the axial direction of the rotating shaft 12 .

[0099] It should be noted that one end of the rotating shaft 12 in this embodiment is fixedly connected to the pressing portion 11b, and the other end can be slidably connected to the base. When the user needs to perform a switch or adjustment operation, he can press the pressing portion 11b, thereby driving the rotating shaft 12 to be pressed together so that the end of the rotating shaft 12 away from the pressing portion 11b is closer to or farther away from the base. Since the reflective area is arranged along the axial direction of the rotating shaft 12, the reflective area will move up and down, and the intensity of the reflected light will be different due to the different reflectivity of the reflective area where the light is irradiated, thereby realizing the function of a push-type switch.

[0100] In order to limit the movable stroke of the rotating shaft 12 and ensure that the rotating shaft 12 moves with the pressing portion 11b, the base of the present embodiment may also be provided with a sliding sleeve, and the end of the rotating shaft 12 away from the pressing portion 11b is arranged in the sliding sleeve. When the user presses the pressing portion 11b, the end of the rotating shaft 12 away from the pressing portion 11b can slide in the sliding sleeve, thereby moving closer to or away from the base. It should be noted that when the rotating shaft 12 is moving, the reflective area on the rotating shaft 12 will not be shielded by the sliding sleeve, so when setting the position and length of the sliding sleeve, it is necessary to design it according to the actual situation.

[0101] It is understandable that in this embodiment, the reflective areas on the same horizontal plane can be referred to as a layer, and then Figure 6 In order to demonstrate the situation of two layers of reflective areas with different reflectivities, the number of layers of reflective areas can be set according to actual conditions in this embodiment, and there is no limitation on this.

[0102] It should also be noted that the above embodiments and Figure 3 The knob switch is shown in the figure, so the above embodiment refers to the part of the adjustment part 1 connected to the rotating shaft 12 as the rotating part 11a, and the present embodiment and Figure 6 What is shown is a push switch, so in this embodiment, the component in the adjustment part 1 connected to the shaft 12 is called the push part 11b. The different names are only convenient for reflecting different electrical switching methods. The specific structures can be set to be consistent or different, and this embodiment does not limit this.

[0103] In order to facilitate the user's pressing, the present embodiment may further provide an elastic component (such as a spring or a spring sheet, etc.) in the base, specifically, it may be provided in the base at one end of the rotating shaft 12 away from the pressing portion 11b. After the user presses, the pressing portion 11b and the rotating shaft 12 may rebound through the elastic component to facilitate the next press.

[0104] Furthermore, in actual detection, similarly, the present embodiment can determine the specific pressing depth and pressing speed according to different current changes, and in order to realize the detection of pressing depth and pressing speed, each reflective area can also be set to the same height, and the detection of pressing depth and pressing speed can be realized according to the number of detected changes, specifically: the switching module 4 is also used to determine the current information according to each of the reflected signals, and determine the pressing characteristics according to the current information, and the pressing characteristics include pressing depth or pressing speed;

[0105] The switching module 4 is further used to switch the electrical state according to the pressing feature.

[0106] It should be understood that the above current information may be information about the current change of the reflected signal, which may be the current value, the number of current changes, or the duration of the current change, etc. In the present embodiment, when the switch realizes the electrical state switching according to different pressing depths, the above switching module 4 (specifically, the switching unit 43 in the switching module 4) may store a preset mapping relationship table, and the preset mapping relationship table may store current values ​​corresponding to different reflectivities. Furthermore, in actual use, when the user presses the adjustment part 1, the switching module 4 may determine the current value at each moment according to the change of the reflected signal after receiving the reflected signal, and then determine the corresponding reflectivity based on the current value, and the corresponding pressing depth may be determined in combination with the depth of the corresponding reflective area, and then the corresponding electrical state switching may be realized according to the different pressing depths.

[0107] Similarly, when the switch switches different electrical states according to different pressing speeds, the number of reflective areas (i.e., the number of layers) can be stored in the switching module 4. In actual use, the number of layers passing through the reflective area can be determined based on the reflected signal, and the pressing speed can be obtained by combining the duration of the current change of the reflected signal.

[0108] It should also be emphasized that the present embodiment can not only switch the electrical state according to the pressing depth and the pressing speed respectively, but also switch the electrical state in combination with the pressing depth and the pressing speed. The present embodiment will not elaborate on this in detail.

[0109] Furthermore, in order to facilitate the switch to realize both a push type and a knob type, continue as follows Figure 6 As shown, in this embodiment, each of the reflective regions includes at least two reflective units with different reflectivities and arranged along the circumference of the rotation axis 12 .

[0110] It can be understood that in this embodiment, a reflective area in a layer may be provided with reflective units with at least two reflectivities, that is, the reflective unit in this embodiment may be the reflective area in the aforementioned embodiment, and the specific setting method of the reflective unit in this embodiment may refer to the setting of the reflective area in the aforementioned embodiment, which is not elaborated in this embodiment.

[0111] It should also be emphasized that for the convenience of detection, when setting the reflection units between different layers, this embodiment tries to ensure that the reflectivity of the reflection units of the upper and lower adjacent layers is different. The best result is that the reflectivity of the reflection units in the reflective area of ​​each layer is different from that of other layers, thereby improving the accuracy of detection, and can realize both push-type and rotation-type.

[0112] In addition, to achieve the above-mentioned purpose, an embodiment of the present application further proposes an in-vehicle electronic device, which may include the switch described above.

[0113] It should be noted that the vehicle-mounted electronic device in this embodiment can be any electronic device on the vehicle that uses a switch, such as a vehicle-mounted air conditioner, a vehicle-mounted lighting device, etc., and this embodiment does not limit this.

[0114] Since the vehicle-mounted electronic device in this embodiment includes the switch described above, this embodiment can achieve the effects achieved by the above embodiments, which will not be described in detail in this embodiment.

[0115] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or system including the element.

[0116] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0117] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A switch, characterized in that: The switch comprises: An adjusting portion, wherein the adjusting portion is provided with at least two reflective areas with different reflectivity; A light emitting component, the light emitting component is used to emit light to the reflective area; A light receiving component, the light receiving component is used to receive the reflected light reflected by each of the reflective areas, and generate a corresponding reflection signal according to each of the reflected lights; A switching module is electrically connected to the light receiving component, and is used to switch the electrical state according to each of the reflection signals.

2. The switch according to claim 1, characterized in that The adjusting part comprises a rotating part and a rotating shaft connected to each other; Each of the reflective areas is arranged along the circumference of the rotating shaft.

3. The switch according to claim 2, characterized in that The reflective regions are arranged in sequence along the rotating shaft, and the sum of the lengths of the reflective regions along the circumference of the rotating shaft is equal to the circumference of the rotating shaft.

4. The switch according to claim 2, characterized in that The switching module is further used to determine current information according to each of the reflected signals, and determine a rotation feature according to the current information, wherein the rotation feature includes at least one of a rotation direction, a rotation angle or a rotation angular velocity; The switching module is further used to switch the electrical state according to the rotation characteristics.

5. The switch according to claim 1, characterized in that The adjusting part comprises a pressing part and a rotating shaft connected to each other, and the rotating shaft moves synchronously with the pressing part; Each of the reflective areas is arranged along the axial direction of the rotating shaft.

6. The switch according to claim 5, characterized in that The switching module is further used to determine current information according to each of the reflection signals, and determine a pressing feature according to the current information, wherein the pressing feature includes a pressing depth or a pressing speed; The switching module is further used to switch the electrical state according to the pressing feature.

7. The switch according to claim 5, characterized in that Each of the reflective regions includes at least two reflective units having different reflectivities and arranged along the circumference of the rotation axis.

8. The switch according to claim 1, characterized in that The switch also includes an adjustment component; The adjustment component is arranged on the light path between the light emitting component and the light reflecting area; The adjustment component is used to adjust the light in parallel and transmit the adjusted light to each of the reflective areas.

9. The switch according to claim 1, characterized in that The switching module includes: an amplification unit, a conversion unit and a switching unit; The amplifying unit is electrically connected to the light receiving component and the converting unit respectively, and the converting unit is electrically connected to the switching unit; The amplifying unit is used to amplify each of the reflected signals and transmit each amplified reflected signal to the converting unit; The conversion unit is used to perform analog-to-digital conversion on each of the amplified reflected signals, and transmit each converted reflected signal to the switching unit; The switching unit is used to switch the electrical state according to each of the converted reflection signals.

10. An in-vehicle electronic device, characterized in that: The in-vehicle electronic device comprises the switch according to any one of claims 1 to 9.

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