CN109378242B - Knob switch for commercial vehicle - Google Patents
Knob switch for commercial vehicle Download PDFInfo
- Publication number
- CN109378242B CN109378242B CN201811283330.0A CN201811283330A CN109378242B CN 109378242 B CN109378242 B CN 109378242B CN 201811283330 A CN201811283330 A CN 201811283330A CN 109378242 B CN109378242 B CN 109378242B
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- CN
- China
- Prior art keywords
- knob
- switch
- shell
- commercial vehicle
- knob switch
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/02—Details
- H01H19/10—Movable parts; Contacts mounted thereon
- H01H19/14—Operating parts, e.g. turn knob
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
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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
Landscapes
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
- Mechanisms For Operating Contacts (AREA)
Abstract
The utility model relates to a knob switch for a commercial vehicle, which comprises a mounting plate (4), a knob (3), a shell (7), a chromium plating decorative ring (1), a fixed block (2), a rotating block (5), a cover plate (8) and a circuit board assembly (10), wherein the chromium plating decorative ring (1) is combined with the knob (3) in a buckling manner and is arranged in the shell (7), the fixed block (2) is fixedly assembled with the shell (7), the shell (7) is assembled with the mounting plate (4) in a buckling manner, and the cover plate (8), the circuit board assembly (10) and the rotating block (5) are assembled with the shell (7) in sequence. The knob switch of the commercial vehicle has attractive appearance, light rotation, good hand feeling and small operating force, can output electric signals of switching value and analog value simultaneously, the switching value is realized by the internal small switch, the analog value outputs PWM analog signals by the singlechip, and 0-5V output can be realized.
Description
Technical Field
The utility model relates to an electric switch, in particular to a knob switch of a commercial vehicle.
Background
Knob switches are an important component of automotive electrical appliances, which are mounted on the dashboard of the cab. The operation is simple, and the appearance is attractive; the gear shifting and functional adjustment device is mainly used for gear shifting and functional adjustment of various automobile electrical products; such as volume adjustment, driving mode selection, etc.
In the prior art, chinese patent publication No. CN204289188U discloses an automobile knob switch, which comprises a rotating mechanism and a control board provided with the rotating mechanism (1), wherein the rotating mechanism is provided with a plurality of poking teeth, and the rotating mechanism can drive the poking teeth to poke the poking switch on the control board to swing, so that the structure is simple, and the automobile knob switch is accurate in adjustment. The knob switch provided by the Chinese patent with publication number of CN205211638U comprises a shell, an encoder and a knob, wherein a cover plate is arranged at the top of the shell, and an opening is formed in the cover plate. The encoder is installed in the shell, the encoder is aimed at the position of trompil, the knob is placed in the trompil, the inner wall of knob is fixed with the encoder, the outer wall of knob is fixed with the apron, the bottom of the gear of encoder has the chamfer, the bottom of the inner wall of knob has the barb, barb and chamfer cooperation fixed knob and encoder, the bottom of the outer wall of knob has the flange of outside extension, flange and apron cooperation fixed knob and apron, this technical scheme makes the knob have sufficient extraction force through chamfer, barb and flange, but the structure is comparatively complicated. The knob switch provided by the Chinese patent of publication No. CN204257474U is provided with a circuit board, a knob shell is arranged on the circuit board, an annular assembly groove is coaxially arranged in the middle of the knob shell, a rotating shaft is coaxially inserted in the annular assembly groove, a rotating bearing is arranged between the inner annular wall of the annular assembly groove and the inner wall of the rotating shaft and is respectively and tightly attached to the annular assembly groove and the rotating shaft, a knob which is coaxially linked with the rotating shaft is arranged at the top of the knob shell, and the rotating bearing is additionally arranged between the inner annular wall of the annular assembly groove and the inner wall of the rotating shaft to ensure that the rotating bearing is respectively and tightly attached to the inner annular wall of the annular assembly groove and the inner wall of the rotating shaft. The automobile knob switch provided by the Chinese utility model patent with the publication number of CN206947225U consists of a panel main body, a switch main body and a switch chassis, wherein the switch main body is of a cylindrical structure, the switch chassis is installed at the lower end of the switch main body, the panel main body is installed at the upper end of the switch main body, the panel main body is of a circular plate-shaped structure, a knob is rotatably installed at an inner hole at the upper end of the panel main body, a plurality of plug posts are arranged at the lower end of the panel main body around the inner hole, the plug posts are matched with plug parts arranged at the opening of the upper end of the switch main body, elastic pieces which are arranged at obtuse angles are symmetrically installed on two side walls of the upper part of the switch main body, a plurality of through holes are arranged on the side walls of the lower part of the switch main body around the circumference, hook-shaped elastic buckles matched with the through holes are installed at the upper end of the switch chassis, the middle part of the switch chassis is vertically provided with circular through holes, and the switch of the structure is convenient to assemble and disassemble.
Based on the current knob switch technology for vehicles, and considering that the operation is simple, the appearance is attractive, and the gear assembly and the function adjustment are suitable for business vehicles, technical improvements are needed to be made on the knob switch in the prior art.
Disclosure of Invention
In order to solve the technical problems, the utility model provides the knob switch of the commercial vehicle, which has attractive appearance and light rotation, the outer ring chromium coating drives the internal small switch to rotate, the hand feeling is good, the operating force is small, the electric signal output of the switching value and the analog value can be simultaneously output, the switching value is realized through the internal small switch, the analog value outputs the PWM analog signal through the singlechip, and the 0-5V output can be realized.
In order to achieve the above purpose, the present utility model adopts the following technical scheme.
The knob switch of the commercial vehicle comprises a mounting plate for mounting and fixing the knob switch of the commercial vehicle on an automobile instrument board, a knob, a shell, a chromium plating decorative ring, a fixed block, a rotating block, a cover plate and a circuit board assembly, wherein the chromium plating decorative ring is combined with the knob in a buckling manner and is arranged in the shell, the fixed block is fixedly assembled with the shell, the shell is assembled with the mounting plate in a buckling manner, and the cover plate, the circuit board assembly and the rotating block are sequentially assembled with the shell.
Preferably, the inside of the shell is a snap-in structure.
In any of the above technical solutions, preferably, the chromed decorative ring is snap-fitted on the knob.
In any of the above embodiments, it is preferable that the knob device having the chrome-plated decorative ring is inserted into the housing and is snap-fitted with the rotary block.
In any of the above embodiments, preferably, the fixing block is disposed in the housing for fixing the knob.
In any of the above embodiments, preferably, the rotating block is disposed in the housing and is engaged with the knob.
In any of the above technical solutions, preferably, the circuit board assembly is soldered with a small switch.
In any of the above technical solutions, preferably, one end of the rotating block is connected to the knob, and the other end is connected to the small switch.
In any of the above technical solutions, preferably, the circuit board assembly is fixedly connected with the housing through a screw.
In any of the above technical solutions, preferably, a connector is further disposed between the circuit board assembly and the cover plate.
In any of the above technical solutions, preferably, the commercial vehicle knob switch includes 5 gears with 120 ° stroke, and the 5 gears include 0, 1, 2, 3 and 4 gears.
In any of the above technical solutions, preferably, the circuit board assembly includes a single chip microcomputer, an operational amplifier, a switch on-off signal output 1 end, a switch on-off signal output 2 end, a switch on-off signal output 3 end, a switch on-off signal output 4 end, and a PWM signal output end.
In any of the above technical solutions, it is preferable that a first capacitor and a second capacitor are connected between the VSS end and the VDD end of the single chip microcomputer in parallel, the GP0 end is connected to the switch on-off signal output 2 end through a fourth resistor, the GP1 end is connected to the switch on-off signal output 3 end through a fifth resistor, the GP2 end is connected to the switch on-off signal output 4 end through a sixth resistor, the GP3 end is connected to the ninth resistor and the third capacitor in parallel, the GP4 end is connected to the eighth resistor and the seventh resistor in parallel and is connected to the switch on-off signal output 1 end through a seventh resistor, and the GP5 is connected to the input end of the operational amplifier through a tenth resistor.
In any of the above technical solutions, preferably, the operational amplifier is connected to a PWM signal output terminal; the operational amplifier adopts a two-stage operational amplifier structure, and an input signal transmitted to the operational amplifier by the singlechip is amplified by the operational amplifier and then transmitted to the PWM signal output end as an analog signal.
The knob on the circuit board drives the rotating block to rotate, so that each gear of the switch is input, after a switch signal is input to the singlechip, the singlechip converts 5V output into 0-100% analog voltage signals through internal operation, and the accurate control of the switch is realized corresponding to 0%, 25%, 50%, 75% and 100% of five-gear output. Compared with the prior art, the technical scheme provided by the utility model has the following innovation: the appearance is attractive, the rotation is light, the outer ring chromium plating layer drives the internal small switch to rotate, the hand feeling is good, and the operating force is small; the switching value and the electric signal output of the analog quantity can be simultaneously output, the switching value is realized through an internal small switch, the analog quantity outputs the PWM analog signal through the singlechip, and the 0-5V output can be realized.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is an assembled structural cross-sectional view of a preferred embodiment of a commercial vehicle knob switch according to the present utility model;
FIG. 2 is a three-dimensional exploded view of the overall structure of a preferred embodiment of a commercial vehicle knob switch according to the present utility model;
FIG. 3 is a view of a chrome plated bezel of a preferred embodiment of a commercial vehicle knob switch according to the present utility model snapped onto a knob in the direction of the arrow;
FIG. 4 is a view of a knob mounted in a housing in the direction of the arrow and a rotating block snapped together in accordance with a preferred embodiment of the commercial vehicle knob switch of the present utility model;
FIG. 5 is a view of a preferred embodiment of a commercial vehicle knob switch according to the present utility model with a fixed block mounted and secured to a housing in the direction of the arrow;
FIG. 6 is a view of a housing of a preferred embodiment of a commercial vehicle knob switch according to the present utility model assembled together by an inner and outer clasp and mounting plate;
FIG. 7 is a view of a cover plate of a preferred embodiment of a commercial vehicle knob switch according to the present utility model assembled to a housing in the direction indicated by the arrow;
FIG. 8 is a circuit block diagram of a preferred embodiment of a commercial vehicle knob switch according to the present utility model;
reference numerals:
the device comprises a chromed decorative ring 1, a fixed block 2, a knob 3, a mounting plate 4, a rotating block 5, a small switch 6, a shell 7, a cover plate 8, screws 9, a circuit board assembly 10 and a connector 11.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In order to overcome the problems of the knob switch for the vehicle in the prior art and considering gear change and function adjustment suitable for the commercial vehicle, the embodiment of the utility model provides the knob switch for the commercial vehicle, which has attractive appearance and light rotation, the outer ring chromium plating layer drives the internal small switch to rotate, the hand feeling is good, the operating force is small, the electric signal output of the switching value and the analog value can be simultaneously output, the switching value is realized through the internal small switch, the analog value outputs PWM (pulse width modulation) analog signals through the singlechip, and the output of 0-5V can be realized.
The commercial car knob switch of this embodiment include the mounting panel 4 that is fixed in commercial car knob switch installation on the header board to and knob 3, casing 7, chromium plating decorative ring 1, fixed block 2, rotatory piece 5, apron 8 and circuit board subassembly 10, as shown in fig. 1, chromium plating decorative ring 1 and knob 3 buckle formula combination and device put into casing 7, fixed block 2 and casing 7 fixed assembly, casing 7 and mounting panel 4 buckle formula assembly, apron 8, circuit board subassembly 10, rotatory piece 5 in proper order with casing 7 assembly combination.
In the commercial vehicle knob switch of this embodiment, the interior of the housing 7 is of a snap-in structure.
In the commercial vehicle knob switch according to the embodiment, as shown in fig. 2, a chrome-plated decorative ring 1 is assembled on a knob 3 in a snap-fit manner.
In the commercial vehicle knob switch according to the present embodiment, as shown in fig. 2, a knob 3 having a chrome-plated decorative ring 1 is fitted into a housing 7 and is snap-fitted with a rotary block 5.
In the commercial vehicle knob switch according to the present embodiment, as shown in fig. 2, a fixing block 2 is disposed in a housing 7 for fixing a knob 3.
In the commercial vehicle knob switch according to the present embodiment, as shown in fig. 2, the rotating block 5 is disposed in the housing 7 and is engaged with the knob 3.
In the commercial vehicle knob switch according to the present embodiment, as shown in fig. 2, a small switch 6 is welded on a circuit board assembly 10.
In the commercial vehicle knob switch according to the present embodiment, as shown in fig. 2, one end of the rotating block 5 is connected to the knob, and the other end is connected to the small switch 6.
In the commercial vehicle knob switch according to the present embodiment, as shown in fig. 2, a circuit board assembly 10 is fixedly connected with a housing 7 by a screw 9.
In the commercial vehicle knob switch of the present embodiment, as shown in fig. 2, a connector 11 is further disposed between the circuit board assembly 10 and the cover plate 8.
The commercial vehicle knob switch of this embodiment has 5 gears 120 ° strokes, and 5 gears include 0, 1, 2, 3 and 4.
The commercial vehicle knob switch of this embodiment, circuit board subassembly 10 include singlechip U1, operational amplifier U2 and switch on-off signal output 1 end, switch on-off signal output 2 ends, switch on-off signal output 3 ends, switch on-off signal output 4 ends, PWM signal output. The on-off signal output 2 end of the switch is connected between the VSS end and the VDD end of the singlechip U1 in parallel, the GP0 end is connected with the on-off signal output 2 end of the switch through a fourth resistor R4, the GP1 end is connected with the on-off signal output 3 end of the switch through a fifth resistor R5, the GP2 end is connected with the on-off signal output 4 end of the switch through a sixth resistor R6, the GP3 end is connected with a ninth resistor R9 and a third capacitor C3 in parallel, the GP4 end is connected with an eighth resistor R8 and a seventh resistor R7 in parallel and is connected with the on-off signal output 1 end of the switch through a seventh resistor R7, and the GP5 is connected with the input end of the operational amplifier U2 through a tenth resistor R10. The operational amplifier U2 is connected with the PWM signal output end; the operational amplifier U2 adopts a two-stage operational amplifier structure, and an input signal transmitted to the operational amplifier by the singlechip U1 is amplified by the operational amplifier U2 and then transmitted to the PWM signal output end as an analog signal.
In this embodiment, the single chip microcomputer U1 adopts a PIC12F683 type chip, and the operational amplifier U2 adopts an LM2904 type amplifier. In terms of hardware structure, the chromed decorative ring 1 mainly plays a role in appearance decoration; the fixed block 2 is used for fixing the knob, so that the knob is prevented from loosening up and down; the knob 3 drives the rotating block to rotate, so that a gear function is realized; the mounting plate 4 realizes that the knob switch is mounted and fixed on an automobile instrument panel; one end of the rotating block 5 is connected with the knob, and the other end is connected with the small switch; the knob drives the small switch to rotate together through the rotating block after rotating; the small switch 6 is turned on once every 30-degree internal contact, and signals are transmitted to the singlechip circuit, so that the waterproof function is realized; the shell 7 mainly plays a role in connection, one end of the shell is connected with the cover plate, the other end of the shell is connected with the mounting plate, and the circuit board assembly is fixed inside the shell; the cover plate 8 is connected with the shell to prevent water and dust from entering the inside of the switch; the screw 9 is used for fixing the circuit board on the shell; the circuit board assembly 10 is a core of a switch and is used for realizing signal processing of input and output of the switch and realizing the function of the switch; the connector 11 is used for connecting a switch and a vehicle body harness, and transmitting signals. The switch of this embodiment adopts the snap-in structure inside, combines the three-dimensional explosion view that fig. 2 shows and fig. 3 to 7, wherein: the chromed decorative ring 1 is buckled on the knob 3 along the arrow direction as shown in fig. 3; the knob 3 is mounted in the housing 7 and snapped together with the rotating block 5 in the direction of the arrow, as shown in fig. 4; the fixed block 2 is fixedly arranged on the shell 7 along the arrow direction as shown in fig. 5; the housing 7 is also assembled with the mounting plate 4 by means of inner and outer snaps, as shown in fig. 6; the cover plate 8 is also fitted to the housing 7 in the direction indicated by the arrow, as shown in fig. 7.
The commercial vehicle knob switch of this embodiment with above-mentioned structure, its implementation mode:
the knob on the circuit board drives the rotating block to rotate, so that each gear input of the switch is realized, after the switch signal is input to the singlechip, the singlechip converts output 5V into 0-100% analog voltage signals through internal operation, and the accurate control of the switch is realized corresponding to 0%, 25%, 50%, 75% and 100% in five-gear output. The following describes the operation principle of the knob switch of the present embodiment with reference to the drawings.
The working principle of the mechanical component is as in fig. 1 to 7:
firstly, the chrome-plated decorative ring 1 is arranged in the knob 3, then the arranged knob 3 is arranged in the shell 7, then the fixed block 2 is arranged in the shell 7, the fixed block 2 fixes the upper and lower positions of the knob 3, and the knob 3 can only rotate. The rotary block 5 is then placed in alignment on the knob 3 in the housing 7, and finally the circuit board assembly 10 with the welded small switch 6 is placed in the housing 7 and the cover plate 8 is placed. The knob 3 rotates to drive the rotary block 5 to rotate, and then the small switch 6 also rotates, and the small switch 6 rotates for 30 degrees once every time, and the stroke of 5 gears is 120 degrees.
As shown in fig. 8, the circuit board assembly operates according to the following principle: the knob switch is internally provided with two paths of outputs, one path is a common switch on-off signal, the switch has 5 gears, no output signal is in 0 gear, 1 gear output signal 1 (5V), 2 gear output signal 2 (5V), 3 gear output signal 3 (5V) and 4 gear output signal 4 (5V); the other output is PWM signal, and the signals 1-4 are connected to the single-chip input pins respectively. When each gear is connected, the input voltage of the corresponding PIC12F683 type singlechip U1 is high, and after the inside of the PIC12F683 type singlechip U1 is operated, A/D sampling and packaging are carried out; the output is in the form of PWM duty ratio voltage, and the specific output is 1 gear 25% (1.25V), 2 gear 50% (2.50V), 3 gear 75% (3.75V) and 4 gear 100% (5.00V); finally, amplifying the signals by an LM2904 type operational amplifier U2; and the output of the switch analog signal is achieved.
The commercial car knob switch of this embodiment combines the car light card in the past and heavily blocks knob switch characteristics and innovates, includes: the inner ring and the outer ring of the old knob switch integrally rotate at the same time, so that the operability and the aesthetic property are poor; the outer ring of the knob switch is plated with chromium, the rotating inner ring of the outer ring is fixed, the knob switch is attractive and practical, and the knob switch accords with the development direction of an internal switch of a cab of a commercial vehicle; the traditional knob switch adopts the sliding contact of a metal contact, and the metal contact is easy to deform, oxidize, vibrate and contact poorly, and does not prevent the defects of dust, water splashing and the like; the inside of the knob switch adopts a waterproof type small switch, and has the advantages of stable contact, no deformation, no oxidation, vibration resistance, long service life and the like; the knob switch can realize analog output signals and has the energy-saving effect; the application range is wide, and the device is suitable for adjusting the brightness of a headlight on a commercial vehicle, rotating gears, selecting a working mode and the like.
The foregoing description of the preferred embodiments of the utility model is merely illustrative of the utility model and is not intended to limit the scope of the utility model; the foregoing is merely illustrative of the present utility model and is not intended to limit the scope of the present utility model; any modification, equivalent replacement, improvement or the like of the technical scheme of the present utility model by those skilled in the art should fall within the protection scope of the present utility model as defined in the claims without departing from the design spirit of the present utility model.
Claims (9)
1. The utility model provides a commercial car knob switch, includes mounting panel (4) on being fixed in the header board with commercial car knob switch installation to and knob (3) and casing (7), its characterized in that: the commercial vehicle knob switch further comprises a chromed decorative ring (1), a fixed block (2), a rotating block (5), a cover plate (8) and a circuit board assembly (10), wherein the chromed decorative ring (1) is combined with the knob (3) in a buckling manner and is arranged in the shell (7), the fixed block (2) is fixedly assembled with the shell (7), the shell (7) is assembled with the mounting plate (4) in a buckling manner, and the cover plate (8), the circuit board assembly (10) and the rotating block (5) are assembled with the shell (7) in sequence; the chrome plating decorative ring (1) is assembled on the knob (3) in a buckle mode, the knob (3) drives the rotating block (5) to rotate, electric signals of switching value and analog value are output, and accurate control of a knob switch of a commercial vehicle is achieved.
2. The commercial vehicle knob switch according to claim 1, wherein: the inside of the shell (7) is of a buckle type structure.
3. The commercial vehicle knob switch according to claim 1, wherein: the knob (3) with the chromed decorative ring (1) is arranged in the shell (7) and is assembled with the rotary block (5) in a buckling way.
4. The commercial vehicle knob switch according to claim 1, wherein: the fixed block (2) is arranged in the shell (7) and is used for fixing the knob (3).
5. The commercial vehicle knob switch according to claim 1, wherein: the rotating block (5) is arranged in the shell (7) and is connected with the knob (3) in a clamping way.
6. The commercial vehicle knob switch according to claim 1, wherein: a small switch (6) is welded on the circuit board assembly (10).
7. The commercial vehicle knob switch according to claim 5, wherein: one end of the rotating block (5) is connected with the knob, and the other end of the rotating block is connected with the small switch (6).
8. The commercial vehicle knob switch according to claim 6, wherein: the circuit board assembly (10) is fixedly connected with the shell (7) through the screw (9).
9. The commercial vehicle knob switch according to claim 8, wherein: and a connector (11) is further arranged between the circuit board assembly (10) and the cover plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811283330.0A CN109378242B (en) | 2018-10-31 | 2018-10-31 | Knob switch for commercial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811283330.0A CN109378242B (en) | 2018-10-31 | 2018-10-31 | Knob switch for commercial vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109378242A CN109378242A (en) | 2019-02-22 |
| CN109378242B true CN109378242B (en) | 2023-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811283330.0A Active CN109378242B (en) | 2018-10-31 | 2018-10-31 | Knob switch for commercial vehicle |
Country Status (1)
| Country | Link |
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| CN (1) | CN109378242B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110502063A (en) * | 2019-07-31 | 2019-11-26 | 延锋伟世通电子科技（上海）有限公司 | A kind of onboard system inductive control knob structure |
| CN114188173B (en) * | 2021-10-26 | 2023-07-21 | 上海科世达-华阳汽车电器有限公司 | Rotary structure trigger switch |
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| KR20160052896A (en) * | 2014-10-29 | 2016-05-13 | 대성전기공업 주식회사 | Vehicular multi-operating switching unit |
| CN106057542A (en) * | 2016-08-17 | 2016-10-26 | 瑞立集团瑞安汽车零部件有限公司 | Switch with locking device |
| CN206947225U (en) * | 2017-07-18 | 2018-01-30 | 吉林省德邦汽车电子有限公司 | A kind of automobile rotary knob switch |
| CN207353150U (en) * | 2017-11-10 | 2018-05-11 | 黄山市瑞兴汽车电子有限公司 | A kind of rotary push formula drive mode switch |
| CN209071201U (en) * | 2018-10-31 | 2019-07-05 | 瑞立集团瑞安汽车零部件有限公司 | Commercial vehicle rotary switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109378242A (en) | 2019-02-22 |
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