CN110211838A - A kind of knob - Google Patents
A kind of knob Download PDFInfo
- Publication number
- CN110211838A CN110211838A CN201910591080.5A CN201910591080A CN110211838A CN 110211838 A CN110211838 A CN 110211838A CN 201910591080 A CN201910591080 A CN 201910591080A CN 110211838 A CN110211838 A CN 110211838A
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- China
- Prior art keywords
- knob
- code
- disc
- interface
- photoelectric switch
- Prior art date
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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
- H01H19/54—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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- Optical Transform (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
The invention discloses a kind of knob, including knob body, code-disc, circuit board and groove type photoelectric switch, first kind interface and the second class interface are provided on the circuit board, first kind interface and the second class interface are for connecting groove type photoelectric switch.By select groove type photoelectric switch quantity and port number and be correspondingly arranged code-disc coding can obtain needs gear number knob.Original contact is changed to optoelectronic induction is contactless, therefore the service life of knob can be improved, it is simple and reliable for structure, it is low to structural member requirement on machining accuracy.Groove type photoelectric switch compares more hollow potentiometer and encoder, and price is cheaper, and component cost is lower.Potentiometer in the prior art and encoder functionality are substituted by groove type photoelectric switch, it is realized in structure with memory and without the unification for remembering hollow knob structure, knob body that no replacement is required and circuit board, potentiometer and encoder functionality are realized using groove type photoelectric switch, it is versatile, it can effectively save cost.
Description
Technical field
The invention belongs to mobile unit fields, more particularly, to a kind of knob.
Background technique
Hollow Knob mechanisms are widely used on automobile due to its strong operability beautiful and generous, such as air-conditioning control
Device processed, electronic knob type selector, light regulating switch etc..Current hollow knob mainly has band position memory and remembers without position
Recall two kinds.Band position memory generally uses potentiometer structure, and encoder or waved switch structure are generally used without position memory.
It is insufficient that hollow knob in the prior art is primarily present three aspects: first, the structure that the prior art provides is more
For contact, potentiometer mostly uses brush+carbon film, and encoder mostly uses plectrum+spring, since the structure of contact can generate mill
Damage, therefore restricted lifetime.Second, the hollow knob with memory area is different to gear and unit angle demand because purposes is different,
30 ° of unit angle have 4 grades 5 grades 6 grades, and 15 ° of unit angle have 3-22 grades.Therefore a variety of potentiometer encoders of demand and pcb board
Match, it is many kinds of and can not be general.Third, hollow potentiometer and encoder are mostly with the presence of independent component, since automobile can
It is harsh by property requirement, import brand is mostly used in the industry such as: ALPS Panasonic.Material Cost is high.
It is, therefore, desirable to provide a kind of knob at low cost and versatile.
Summary of the invention
The purpose of the present invention is to provide a kind of knobs, are that contact type structure uses the longevity for solving knob in the prior art
Order the problems such as short and at high cost.
In order to solve the above-mentioned technical problem, the present invention proposes a kind of knob, including knob body, code-disc, circuit board and
Groove type photoelectric switch, the knob body are connect with the circuit board, and the knob body and the circuit board cooperate shape
At an accommodating space；
It is provided at least one first kind interface and a second class interface on the circuit board, the first kind interface,
The second class interface and the groove type photoelectric switch are respectively positioned in the accommodating space；
According to preset gear type, the groove type photoelectric switch and the first kind interface or the second class interface connect
It connects；
The code-disc is arranged in the accommodating space and is fixedly connected with the knob body, and the code-disc includes coding
Section, occlusion part and hollow-out parts are provided on the coding section, when rotating the knob body, the knob body drives institute
Coding section is stated to move in the groove of the groove type photoelectric switch, when the coding section moves in the groove, the light
Electric switch exports the first signal to the circuit board, and the circuit board is used for according to first signal acquisition that interface arrives
The gear of knob.
Optionally, according to preset numbers of gear steps, point of the occlusion part and the hollow-out parts on the coding section is set
Cloth.
Optionally, when the first kind interface quantity is two, the first kind interface and the second class interface phase
For the position of the code-disc are as follows:
The code-disc is projected as circular ring shape on the circuit board, one of them first kind interface and the annulus
The line in the center of circle of shape is L, and the line in the center of circle of the second class interface and the circular ring shape is M, another described first kind
The line in the center of circle of interface and the circular ring shape is that the angle of N, the L and the N are 180 °, and the angle of the L and the M are
90°。
Optionally, first signal is made of high level and/or low level, when the occlusion part passes through the groove
When, the groove type photoelectric switch exports high level to the circuit board, when the hollow-out parts pass through the groove, the groove profile
Optoelectronic switch exports low level to the circuit board, and the high level is encoded to 1, described low level to be encoded to 0.
Optionally, the first kind interface for connect four-way groove type photoelectric switch for provide four tunnel level signals,
The second class interface is for connecting two channel groove type photoelectric switches for providing two-way level signal.
Optionally, the gear type includes absolute type coding and incremental coding, and the code-disc includes incremental code
Disk and absolute type code-disc, the incremental code-disc are encoded for the incremental, and the absolute type code-disc is for described absolute
Type coding.
Optionally, when preset gear type and quantity are the absolute type coding less than or equal to 16 grades, described first
Class interface quantity is 1；
The first kind interface connects four-way groove type photoelectric switch, and the second class interface is reserved, the code-disc selection
The absolute type code-disc.
Optionally, described when preset gear type and quantity are the absolute type coding greater than 16 grades and less than 32 grades
First kind interface quantity is two；
Two first kind interfaces are separately connected a four-way groove type photoelectric switch, and the second class interface is reserved, institute
It states code-disc and selects the absolute type code-disc.
Optionally, when preset gear type is that incremental encodes, the first kind interface is reserved, and second class connects
Mouth two channel groove type photoelectric switches of connection, the code-disc select the incremental code-disc.
Optionally, the knob body includes knob cap and knob base, and the code-disc further includes cooperation section, the cooperation
Section with the knob cap for connecting, and the knob base is fixedly connected with the circuit board, and the knob base includes the accommodating
Space, the code-disc is set on the knob and is rotatablely connected with the knob base, when rotating the knob cap, the rotation
Button hatband moves the coding section and moves in the groove.
Optionally, the quantity of first signal is equal to the numbers of gear steps of the knob.
The present invention provides a kind of knob, including knob body, code-disc, circuit board and groove type photoelectric switch, the circuit
First kind interface and the second class interface are provided on plate, first kind interface and the second class interface are for connecting groove type photoelectric switch.
By selecting the quantity of groove type photoelectric switch and port number and being correspondingly arranged the coding of code-disc and can obtain the gear number of needs
Knob.Original contact is changed to optoelectronic induction is contactless, therefore the service life of knob can be improved, structure is simple
Reliably, low to structural member requirement on machining accuracy.Groove type photoelectric switch compares more hollow potentiometer and encoder, and price is more just
Preferably, therefore, component cost is lower.
In addition, potentiometer in the prior art and encoder functionality are substituted by groove type photoelectric switch, realized in structure
With memory and without the unification for remembering hollow knob structure, knob body that no replacement is required and circuit board utilize groove type photoelectric switch
Realize potentiometer and encoder functionality, it is versatile, it can effectively save cost.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of knob provided in an embodiment of the present invention；
Fig. 2 is a kind of structural blast schematic diagram of knob provided in an embodiment of the present invention；
Fig. 3 is schematic diagram of three interfaces relative to code-disc relative position in the embodiment of the present invention；
Fig. 4 is three interfaces position view on circuit boards in the embodiment of the present invention；
Fig. 5 is that a kind of absolute type provided in the embodiment of the present invention encodes the groove type photoelectric switch distribution map of knob；
Fig. 6 is that a kind of absolute type provided in the embodiment of the present invention encodes the schematic diagram of knob；
The expanded schematic diagram of code-disc in Fig. 7 Fig. 6；
Fig. 8 is that a kind of absolute type provided in the embodiment of the present invention encodes the code pattern of knob；
Fig. 9 is that another absolute type provided in the embodiment of the present invention encodes the groove type photoelectric switch distribution map of knob；
Figure 10 is that another absolute type provided in the embodiment of the present invention encodes the code pattern of knob；
Figure 11 is the expanded schematic diagram that corresponding code-disc is encoded in Figure 10；
Figure 12 is that a kind of incremental provided in the embodiment of the present invention encodes the groove type photoelectric switch distribution map of knob；
Figure 13 is that a kind of incremental provided in the embodiment of the present invention encodes the schematic diagram of knob；
Figure 14 is that a kind of incremental provided in the embodiment of the present invention encodes the code pattern of knob；
Figure 15 is that a kind of incremental provided in the embodiment of the present invention encodes the Principle of Rotating figure counterclockwise of knob；
Figure 16 be in the embodiment of the present invention a kind of incremental for providing encode knob rotate clockwise schematic diagram；
Figure 17 is the schematic diagram of Acquisition Circuit in a kind of knob provided in the embodiment of the present invention；
Figure 18 is the structure chart of four-way groove type photoelectric switch in the embodiment of the present invention；
10- knob body, 20- code-disc, 201- coding section, 2011- hollow-out parts, 2012- occlusion part, 202- cooperate section, 30-
Circuit board, 301- first kind interface, 302- the second class interface, 40- groove type photoelectric switch, 401- infrared transmitting tube, 402- are infrared
Reception pipe, 50- knob cap, 60- knob base, 70- screw.
Specific embodiment
A specific embodiment of the invention is described in more detail below in conjunction with schematic diagram.According to following description and
Claims, advantages and features of the invention will become apparent from.It should be noted that attached drawing is all made of very simplified form and
Using non-accurate ratio, only for the purpose of facilitating and clarifying the purpose of the embodiments of the invention.
In the description of the present invention, it is to be understood that, the instructions such as term " center ", "upper", "lower", "left", "right"
Orientation or positional relationship are to be based on the orientation or positional relationship shown in the drawings, and are merely for convenience of the description present invention and simplification is retouched
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it is not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is at least two, such as two
It is a, three etc., unless otherwise specifically defined.
As shown in Fig. 1 to Figure 16, the embodiment of the present invention provides a kind of knob, including knob body 10, code-disc 20, circuit board
30 and groove type photoelectric switch 40.The knob body 10 is connect with the circuit board 30, and the knob body 10 and institute
It states circuit board 30 and cooperatively forms an accommodating space.At least one first kind interface 301 and one are provided on the circuit board 30
Second class interface 302.According to preset gear type, the groove type photoelectric switch and the first kind interface 301 or described the
The connection of two class interfaces 302.The first kind interface 301, the second class interface 302 and the groove type photoelectric switch are respectively positioned on
In the accommodating space.The code-disc 20 is arranged in the accommodating space and is fixedly connected with the knob body 10, described
Code-disc 20 includes coding section 201, is provided with occlusion part 2012 and hollow-out parts 2011 on the coding section 201.Described in rotation
When knob body 10, the knob body 10 drives the coding section 201 to move in the groove of the groove type photoelectric switch, when
When the coding section 201 moves in the groove, the groove type photoelectric switch 40 exports the first signal to the circuit board 30.
The circuit board 30 is used for the gear of the knob according to first signal acquisition received.
As shown in Figure 1 to Figure 3, a kind of knob provided in an embodiment of the present invention, in order to deal with different angle and gear demand,
The position of groove type photoelectric switch 40 is planned as a whole, it is only necessary to which replacing groove type photoelectric switch 40 and corresponding code-disc can be completed
The knob function of different stalls.In general, gear type can be divided into: incremental coding and absolute type coding.Without memory function
It is to be encoded using incremental in the knob principle of energy, knob does not remember relative position, can only perceive the direction of knob.And with memory
It is to be encoded using absolute type in the knob principle of function, knob remembers relative position and angle, passes through multiple groups groove type photoelectric switch
40 codings realize the perception of position.It should be noted that the groove type photoelectric switch 40 is slot type groove type photoelectric switch 40, it is described
Coding is the set of some binary numbers composition in fact, the content of coding be by the occlusion part 2012 on the code-disc 20 with
And the hollow-out parts 2011 determine.When rotating knob, the knob body 10 will drive the code-disc 20 in the ditch
Rotary motion in slot, when occlusion part 2012 and hollow-out parts 2011 on the code-disc 20 are by the groove type photoelectric switch 40,
The groove type photoelectric switch 40 will send corresponding signal to the circuit board 30.By change the occlusion part 2012 and
2011 bring of the hollow-out parts coding is different.
Optionally, as shown in Figure 3 and Figure 4, when the quantity of the first kind interface 301 is two, the first kind is connect
The position of mouth 301 and the second class interface 302 relative to the code-disc 20 are as follows: the code-disc 20 is on the circuit board 30
It is projected as circular ring shape, the line in the center of circle of one of them first kind interface 301 and the circular ring shape is L, second class
The line in the center of circle of interface 302 and the circular ring shape is M, the center of circle of another first kind interface 301 and the circular ring shape
Line be the angle of N, the L and the N be 180 °, the angle of the L and the M are 90 °.
Optionally, first signal can be made of high level and/or low level, the coding principle of the code-disc 20 are as follows:
When the occlusion part 2012 is by the groove, the groove type photoelectric switch 40 export high level to the circuit board 30, when
When the hollow-out parts 2011 are by the groove, the groove type photoelectric switch 40 export low level to the circuit board 30, described
High level is encoded to 1, described low level to be encoded to 0.The first kind interface 301 is opened for connecting four-way groove profile photoelectricity
It closes for providing four tunnel level signals, the second class interface 302 is for connecting two channel groove type photoelectric switches for providing two
Road level signal, the four-way groove type photoelectric switch that one of them described first kind interface 301 connects in figure are labeled as A, institute
The two channel groove type photoelectric switches for stating the connection of the second class interface 302 are labeled as B, what another described first kind interface 301 connected
Four-way groove type photoelectric switch is labeled as C.The level signal is high level or low level.
Optionally, as shown in Fig. 2, Fig. 6 and Fig. 7, the knob body 10 includes knob cap 50 and knob base 60, described
Code-disc 20 includes coding section 201 and cooperation section 202, and the coding section 201 is for being arranged the occlusion part 2012 and described
Hollow-out parts 2011, for the cooperation section 202 for connecting with the knob cap 50, the knob base 60 and the circuit board 30 are fixed
Connection, the knob base 60 include the accommodating space, and the first kind interface 301 and the second class interface 302 are in institute
It states in accommodating space, the code-disc 20 is set on the knob base 60 and is rotatablely connected with the knob base 60, the coding
Section 201 is arranged in the accommodating space, and when rotating the knob cap 50, the knob cap 50 drives the coding section 201
It is moved in the groove of the groove type photoelectric switch 40.It can be fixed by screw 70 between the knob base 60 and the circuit board 30
Connection.
As seen in figs. 14-18, general slot type groove type photoelectric switch 40 has infrared transmitting tube 401 and infrared receiving tube
402, wherein in four-way groove type photoelectric switch infrared transmitting tube 401 it is general there are two, infrared receiving tube 402 has 4 can mention
For four tunnel level signals, in two channel groove type photoelectric switches infrared transmitting tube 401 it is general only one, infrared receiving tube 402 has 2
It is a that two-way level signal can be provided.The circuit board 30 includes an Acquisition Circuit for acquiring 301 He of first kind interface
The information of the second class interface 302, wherein AX0, AX1, AX2, AX3 respectively represent four channels of groove type photoelectric switch A,
EA0, EA1, EA2, EA3 respectively correspond the coding in tetra- channels AX0, AX1, AX2, AX3；BX0, BX1 respectively represent groove profile photoelectricity
Two channels of switch B, EB0, EB1 respectively correspond the coding in two channels BX0, BX1；CX0, CX1, CX2, CX3 are respectively represented
Four channels of groove type photoelectric switch C, EC0, EC1, EC2, EC3 respectively correspond the coding in tetra- channels CX0, CX1, CX2, CX3.
Infrared receiving tube 402 is represented when the switch is closed and receives optical signal, indicates that hollow-out parts 2011 pass through groove profile photoelectricity
The groove of switch 40 is wherein encoded to 0 in groove type photoelectric switch 40 at this time all the way；Infrared receiver is represented when the switches are opened
Pipe 402 is not received by optical signal, and optical signal is stopped by code-disc, indicates ditch of the occlusion part 2012 Jing Guo groove type photoelectric switch 40
Slot is wherein encoded to 1 in groove type photoelectric switch 40 at this time all the way.For example, being provided with slot at the first kind interface 301
When type optoelectronic switch A, when AX0 channel of the occlusion part 2012 by groove type photoelectric switch A, groove type photoelectric switch A at this time
The channel AX0 can send high level, the value for being encoded to 1 namely EA0 in the channel AX0 is 1.Certainly, for those skilled in the art
For, it can also be 1 by the encoding setting for receiving optical signal, the encoding setting for being not received by optical signal is 0.
The gear type generally comprises absolute type coding and incremental coding, the code-disc 20 generally comprise incremental
Code-disc and absolute type code-disc, the incremental code-disc are encoded for the incremental, and the absolute type code-disc is for described exhausted
Type is encoded.Certain absolute type type code-disc not only has a kind of form, need to specifically be selected according to different gear demands.
In general, knob can be divided into three kinds of forms according to different code-discs and gear type, the first is 16 grades of absolute type coding
Knob, is for second 31 grades of absolute type coding knob, the third is incremental coding knob.Each type is made a concrete analysis of below
Knob structure.
When preset gear type and quantity are the absolute type coding less than or equal to 16 grades, as shown in Fig. 5 to Fig. 8,
The quantity of the first kind interface 301 is set as one, and the first kind interface 301 connects four-way groove type photoelectric switch, institute
It is reserved to state the second class interface 302, the code-disc 20 selects the absolute type code-disc.At this point, only on the first kind interface 301
Connect a four-way groove type photoelectric switch A.The set of the value composition of EA0, EA1, EA2, EA3 can are as follows: and 0001,1001,
1101,0101,0111,1111,1011,0011,0010,1010,1110,0110,0100,1100,1000,0000 }, Yi Gongke
To realize 16 grades of knob demand.The value of EA0, EA1, EA2, EA3 have corresponded to the coding of absolute type code-disc.It should be noted that
For above-mentioned coding only for 16 grades of knob demand, it is adjacent then to choose several in set less than 16 for gear number if necessary
The location information as the code-disc 20 is encoded, for example, may be selected at this time when gear number if desired is 5 0001,1001,
1101,0101,0111 } as the coding of code-disc, { 1001,1101,0101,0111,1111 } also may be selected, there are also a lot of other
Combination it can be selected that this will not be repeated here, the code-disc setting of other quantity gears is similar therewith.It is compiled according to these binary systems
Code is correspondingly arranged occlusion part 2012 and hollow-out parts 2011 on the code-disc 20, and coding 0 is correspondingly arranged hollow-out parts 2011, encodes
1 is correspondingly arranged occlusion part 2012.Fig. 7 is the expanded schematic diagram of code-disc coding section 201 in Fig. 8.In addition, when gear is less than 16 grades
When, using snap part is arranged on the knob base 60, snap part is used to limit the code-disc 20 on knob base 60
Rotation angle so that the code-disc is only capable of rotating by a certain angle so that 201 part of coding section of code-disc can only be allowed to pass through groove profile
Optoelectronic switch can satisfy demand of the gear less than 16 grades when in this way, and certainly, the rotation angle of limitation needs according to actual needs
To select.
Due to being only unable to satisfy the demand of knob of the gear number greater than 16 when by a four-way groove type photoelectric switch, because
This, is when preset gear type and quantity are the absolute type coding greater than 16 grades and less than 32 grades, as shown in Figures 9 to 11,
The quantity of the first kind interface 301 is set as two, one of them described first kind interface 301 connects four-way groove profile photoelectricity
Switch, the second class interface 302 is reserved, another described first kind interface connects another four-way groove type photoelectric switch,
The code-disc 20 selects the absolute type code-disc.Connect four-way groove profile at a first kind interface 301 wherein at this time
Optoelectronic switch A connects four-way groove type photoelectric switch C in another described first kind interface.EA0,EA1,EA2,EA3,
EC0, EC1, EC2, EC3 are the value in four channels of four-way groove type photoelectric switch A and four-way groove type photoelectric switch C respectively,
The set of the value composition of EA0, EA1, EA2, EA3, EC0, EC1, EC2, EC3 can are as follows: and 00010111,10011111,
11011011,01010011,01110010,11111010,10111110,00110110,00100100,10101100,
11101000,01100000,01000001,11001001,10001101,00000101,01110001,11111001,
10111101,00110101,00100111,10101111,11101011,01100011,01000010,11001010,
10001110,00000110,00010100,10011100,11011000,01010000 }, the need of 31 grades of knobs can be achieved altogether
It asks, the value of EA0, EA1, EA2, EA3, EC0, EC1, EC2, EC3 have corresponded to the coding of absolute type code-disc, and Figure 11 is that coding is corresponding
The expanded view of code-disc.It should be noted that above-mentioned coding, only for 31 grades of knob demand, gear number if necessary is less than 31
And when being greater than 16 grades, then location information of the adjacent coding of several in set as the code-disc 20 is chosen, for example, if desired
Gear number when being 17, may be selected at this time 00010111,10011111,11011011,01010011,01110010,
11111010,10111110,00110110,00100100,10101100,11101000,01100000,01000001,
11001001,10001101,00000101,01110001 } as the coding of code-disc, also may be selected 10011111,
11011011,01010011,01110010,11111010,10111110,00110110,00100100,10101100,
11101000,01100000,01000001,11001001,10001101,00000101,01110001,11111001 }, also
It can be selected that this will not be repeated here, the code-disc setting of other quantity gears is similar therewith for a lot of other combinations.According to these
Binary coding is correspondingly arranged occlusion part 2012 and hollow-out parts 2011 on the code-disc 20, and coding 0 is correspondingly arranged hollow-out parts
2011, coding 1 is then correspondingly arranged occlusion part 2012.In addition, when gear is less than 31 grades, it is available to be set on the knob base 60
Snap part is set, snap part is used to limit rotation angle of the code-disc 20 on knob base 60, so that the code-disc is only capable of
It rotates by a certain angle that 201 part of coding section of code-disc can only be allowed by groove type photoelectric switch, it is small to can satisfy gear in this way
Demand when 16 grades, certainly, the rotation angle of limitation need according to actual needs to select.
As shown in Figure 12 to Figure 16, when preset gear type is that incremental encodes, the first kind interface 301 is pre-
It stays, the second class interface 302 connects two channel groove type photoelectric switches, and the code-disc 20 selects the incremental code-disc.Due to
The knob of incremental coding does not remember relative position, only can perceive the direction of knob, therefore only need in the second class interface
Two channel groove type photoelectric switch B are connected at 302, when Figure 14 rotates clockwise for code-disc, code-disc and groove type photoelectric switch B's
Each state diagram；When Figure 15 rotates clockwise for code-disc, each state diagram of code-disc and groove type photoelectric switch B.
When code-disc rotates counterclockwise, as shown in figure 15, two the channels BX0 and BX1 of groove type photoelectric switch B when position 1
It can receive optical signal, infrared receiving tube 402 triggers, EB0 and EB1 state is 00；BX0 can receive optical signal when position 2
Triggering ground connection, BX1 optical signal is blocked by code-disc not to be triggered, EB0 and EB1 state is 01；BX0 and BX1 are kept off by code-disc when position 3
Optical signal can not be firmly received, infrared receiving tube 402 does not trigger, EB0 and EB1 state is 11；BX0 optical signal is by code when position 4
Disk, which blocks, not to be triggered, and power supply is pulled to, and BX1 can receive optical signal triggering ground connection, EB0 and EB1 state is 10；BX0 when position 5
It can receive optical signal with BX1, infrared receiving tube 402 triggers, EB0 and EB1 state is 00.So circulation executes, and forms 00-
The process of > 01- > 11- > 10- > 00.
When code-disc rotates clockwise, as shown in figure 16, BX0BX1 can receive optical signal, infrared receiving tube when position 1
402 trigger, and EB0EB1 state is 00；BX0 optical signal is blocked by code-disc when position 2 does not trigger, is pulled to power supply, and BX1 can connect
Optical signal triggering ground connection is received, EB0EB1 state is 10；BX0BX1, which is blocked by code-disc, when position 3 can not receive optical signal, red
Outer reception pipe 402 does not trigger, and EB0EB1 state is 11；BX0 can receive optical signal triggering ground connection, BX1 optical signal when position 4
It is blocked by code-disc and is not triggered, EB0EB1 state is 01；BX0BX1 can receive optical signal when position 5, and infrared receiving tube 402 touches
Hair, EB0EB1 state are 00.So circulation executes, and forms the process of 00- > 10- > 11- > 01- > 00.
The circuit board 30 only passes through the state change of identification state EB0 and EB1, according to the He of 00- > 01- > 11- > 10- > 00
The process of 00- > 10- > 11- > 01 > 00 can recognize direction and change frequency, so that it may reach knob collection process.
Using the knob structure of above-mentioned three kinds of forms, and according to corresponding coding, vehicle-mounted knob structure 80% can be met
Demand.
In conclusion the present invention provides a kind of knob, including knob body, code-disc, circuit board and groove type photoelectric switch,
First kind interface and the second class interface are provided on the circuit board, first kind interface and the second class interface are for connecting groove profile
Optoelectronic switch.By selecting the quantity of groove type photoelectric switch and port number and being correspondingly arranged the coding of code-disc and can be needed
Gear number knob.Original contact is changed to optoelectronic induction is contactless, therefore the service life of knob can be improved,
It is simple and reliable for structure, it is low to structural member requirement on machining accuracy.Groove type photoelectric switch compares more hollow potentiometer and encoder, valence
Lattice are cheaper, and therefore, component cost is lower.In addition, potentiometer in the prior art and encoder functionality are passed through groove profile light
Electric switch substitutes, and is realized in structure with memory and without the unification for remembering hollow knob structure, knob body that no replacement is required and electricity
Road plate realizes potentiometer and encoder functionality using groove type photoelectric switch, versatile, can effectively save cost.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example " or " specifically show
The description of example " etc. means that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained in the present invention
At least one embodiment or example in.In the present specification, schematic expression of the above terms are necessarily directed to phase
Same embodiment or example.And particular features, structures, materials, or characteristics described can be real in any one or more
Applying in example can be combined in any suitable manner.In addition, those skilled in the art can be by different embodiments described in this specification
Or example is engaged and is combined.
The above is only a preferred embodiment of the present invention, does not play the role of any restrictions to the present invention.Belonging to any
Those skilled in the art, in the range of not departing from technical solution of the present invention, to the invention discloses technical solution and
Technology contents make the variation such as any type of equivalent replacement or modification, belong to the content without departing from technical solution of the present invention, still
Within belonging to the scope of protection of the present invention.
Claims (11)
1. a kind of knob, which is characterized in that including knob body, code-disc, circuit board and groove type photoelectric switch, the knob sheet
Body is connect with the circuit board, and the knob body and the circuit board cooperatively form an accommodating space；
It is provided at least one first kind interface and a second class interface on the circuit board, it is the first kind interface, described
Second class interface and the groove type photoelectric switch are respectively positioned in the accommodating space；
According to preset gear type, the groove type photoelectric switch is connect with the first kind interface or the second class interface；
The code-disc is arranged in the accommodating space and is fixedly connected with the knob body, and the code-disc includes coding section,
Occlusion part and hollow-out parts are provided on the coding section, when rotating the knob body, described in the knob body drive
Coding section moves in the groove of the groove type photoelectric switch, when the coding section moves in the groove, the photoelectricity
Switch exports the first signal to the circuit board, and the circuit board is used for the rotation according to first signal acquisition that interface arrives
The gear of button.
2. a kind of knob as described in claim 1, which is characterized in that according to preset numbers of gear steps, the coding section is arranged
The distribution of the upper occlusion part and the hollow-out parts.
3. a kind of knob as described in claim 1, which is characterized in that described when the first kind interface quantity is two
The position of first kind interface and the second class interface relative to the code-disc are as follows:
The code-disc is projected as circular ring shape on the circuit board, one of them first kind interface and the circular ring shape
The line in the center of circle is L, and the line in the center of circle of the second class interface and the circular ring shape is M, another described first kind interface
Line with the center of circle of the circular ring shape is that the angle of N, the L and the N are 180 °, and the angle of the L and the M are 90 °.
4. a kind of knob as described in claim 1, which is characterized in that first signal is by high level and/or low level group
At when the occlusion part passes through the groove, the groove type photoelectric switch exports high level to the circuit board, engraves when described
When the groove is passed through in empty portion, the groove type photoelectric switch exports low level to the circuit board, and the high level is encoded to
1, it is described low level to be encoded to 0.
5. a kind of knob as claimed in claim 4, which is characterized in that the first kind interface is for connecting four-way groove profile light
Electric switch is for providing four tunnel level signals, and the second class interface is for connecting two channel groove type photoelectric switches for providing two
Road level signal.
6. a kind of knob as claimed in claim 5, which is characterized in that the gear type includes absolute type coding and increment
Type coding, the code-disc include incremental code-disc and absolute type code-disc, and the incremental code-disc is encoded for the incremental,
The absolute type code-disc is encoded for the absolute type.
7. a kind of knob as claimed in claim 6, which is characterized in that when preset gear type and quantity be less than or equal to
When 16 grades of absolute type coding, the first kind interface quantity is 1；
The first kind interface connects four-way groove type photoelectric switch, and the second class interface is reserved, described in the code-disc selection
Absolute type code-disc.
8. a kind of knob as claimed in claim 6, which is characterized in that when preset gear type and quantity be greater than 16 grades and
When absolute type less than 32 grades encodes, the first kind interface quantity is two；
Two first kind interfaces are separately connected a four-way groove type photoelectric switch, and the second class interface is reserved, the code
Disk selects the absolute type code-disc.
9. a kind of knob as claimed in claim 6, which is characterized in that when preset gear type is that incremental encodes, institute
It is reserved to state first kind interface, the second class interface connects two channel groove type photoelectric switches, and the code-disc selects the incremental
Code-disc.
10. a kind of knob as described in claim 1, which is characterized in that the knob body includes knob cap and knob base,
The code-disc further includes cooperation section, and for the cooperation section for connecting with the knob cap, the knob base and the circuit board are solid
Fixed connection, the knob base include the accommodating space, and the code-disc is set on the knob and rotates with the knob base
Connection, when rotating the knob cap, the knob cap drives the coding section to move in the groove.
11. a kind of knob as described in claim 1, which is characterized in that the quantity of first signal is equal to the knob
Numbers of gear steps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910591080.5A CN110211838A (en) | 2019-07-02 | 2019-07-02 | A kind of knob |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910591080.5A CN110211838A (en) | 2019-07-02 | 2019-07-02 | A kind of knob |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110211838A true CN110211838A (en) | 2019-09-06 |
Family
ID=67795783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910591080.5A Pending CN110211838A (en) | 2019-07-02 | 2019-07-02 | A kind of knob |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110211838A (en) |
-
2019
- 2019-07-02 CN CN201910591080.5A patent/CN110211838A/en active Pending
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