CN208819369U - A kind of infrared mutual-tube key circuit - Google Patents
A kind of infrared mutual-tube key circuit Download PDFInfo
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- CN208819369U CN208819369U CN201821578785.0U CN201821578785U CN208819369U CN 208819369 U CN208819369 U CN 208819369U CN 201821578785 U CN201821578785 U CN 201821578785U CN 208819369 U CN208819369 U CN 208819369U
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- infrared
- pin
- key
- remote
- tube
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Abstract
The utility model discloses a kind of infrared mutual-tube key circuits, including input key, remote-controlled chip and infrared transmitting tube, the input key is electrically connected with remote-controlled chip, remote-controlled chip is electrically connected with infrared transmitting tube, remote-controlled chip encodes input key, and externally sends infrared signal by infrared transmitting tube；It further include infrared receiver portion, the infrared receiver portion includes infrared receiving terminal and the connecting terminal that is electrically connected with infrared receiving terminal, the infrared receiving terminal receives the infrared signal that the infrared transmitting tube is sent, and the connecting terminal is connected with the external electronic device of decoding function.While the utility model has electronic equipment mostly by key control, a large amount of I/O mouthfuls of resource can be saved for the main control MCU of electronic equipment.
Description
Technical field
The utility model relates to technical field of key more particularly to a kind of infrared mutual-tube key circuits.
Background technique
Currently, most of electronic equipment on the market is both provided with man-machine interactive operation unit, man-machine interactive operation unit
It is provided with key panel, key panel is connected to the main control MCU of electronic equipment by key circuit.
And existing key circuit is generally attached control using the I/O mouth directly using electronic equipment main control MCU, when
When key is more, the I/O mouth that will lead to main control MCU is largely occupied, when electronic equipment needs to be increased according to use demand
When new function, then not extra I/O carries out expansion use, can not be expanded.
Therefore, there are also to be developed for the prior art.
Utility model content
Place in view of above-mentioned deficiencies of the prior art, the purpose of this utility model is to provide a kind of infrared mutual-tube keys
Circuit, it is intended to meet electronic equipment mostly by key control while, can for electronic equipment main control MCU save it is a large amount of I/O mouthful provide
Source.
To achieve the above object, the utility model takes following technical scheme:
A kind of infrared mutual-tube key circuit, wherein
It is electrically connected, is remotely controlled with remote-controlled chip including input key, remote-controlled chip and infrared transmitting tube, the input key
Chip is electrically connected with infrared transmitting tube, remote-controlled chip to input key encode, and by infrared transmitting tube externally send it is red
Outside line signal；
It further include infrared receiver portion, the infrared receiver portion includes infrared receiving terminal and what is be electrically connected with infrared receiving terminal connect
Line terminals, the infrared receiving terminal receive the infrared signal that the infrared transmitting tube is sent, and the connecting terminal is connected with solution
The external electronic device of code function.
Wherein, the remote-controlled chip model RH5404, including OUT pin, I0 draw to I7 pin and KIO0 to KIO7
Foot, the OUT pin connect infrared transmitting tube, and the I0 to I7 pin, KIO0 to KIO7 pin, 64 key switch matrix connect
Connect composition 64 bit matrix input key.
Wherein, the remote-controlled chip model HT6222, including DOUT pin, R1 be to R8 pin and C1 to C8 pin,
The DOUT pin connects infrared transmitting tube, the R1 to R8 pin, C1 to C8 pin, 64 key switch matrix connection compositions
64 bit matrix input key.
Wherein, the infrared receiving terminal model HM338R.
Wherein, the connecting terminal is connected with pin end and/or female connector.
The infrared mutual-tube key circuit of the utility model, by setting input key, remote-controlled chip, infrared transmitting tube,
And infrared receiver socket part, infrared receiver socket part includes infrared receiving terminal and the connecting terminal that is electrically connected with infrared receiving terminal, infrared
It receives head and receives the infrared signal that infrared transmitting tube is sent, connecting terminal is connected with the external electronic device of decoding function.This
Sample electronic equipment only needs one using electronic equipment main control MCU in the infrared mutual-tube key circuit using the utility model
I/O mouthfuls can realize functions of multiple keys, be that the main control MCU of electronic equipment saves a large amount of I/O mouthfuls of resource, at low cost, circuit
It is easy to use, there is very strong versatility, be suitable for popularization and application.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the comprising modules schematic diagram of the utility model infrared mutual-tube key circuit；
Fig. 2 is the first embodiment schematic diagram of the utility model infrared mutual-tube key circuit；
Fig. 3 is second of embodiment schematic diagram of the utility model infrared mutual-tube key circuit.
Description of symbols:
100- key circuit, 10- input key, 20- remote-controlled chip, 30- infrared transmitting tube, 40- infrared receiver portion, 41-
Infrared receiving terminal, 42- connecting terminal, 200- external electronic device.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, fall within the protection scope of the utility model.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment
It is only used for explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, such as
When the fruit particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In the present invention unless specifically defined or limited otherwise, term " connection ", " fixation " etc. should do broad sense reason
Solution, for example, " connection " may be a fixed connection, may be a detachable connection, or integral；It can be mechanical connection, it can also
To be electrical connection；It can be directly connected, the connection inside two elements can also be can be indirectly connected through an intermediary
Or the interaction relationship of two elements, unless otherwise restricted clearly.It for the ordinary skill in the art, can be with
The concrete meaning of above-mentioned term in the present invention is understood as the case may be.
In addition, the description for being such as related to " first ", " second " in the present invention is used for description purposes only, and cannot manage
Solution is its relative importance of indication or suggestion or the quantity for implicitly indicating indicated technical characteristic.Define as a result, " the
One ", the feature of " second " can explicitly or implicitly include at least one of the features.
Fig. 1 to Fig. 3 is please referred to, the utility model proposes a kind of infrared mutual-tube key circuits 100, including input key
10, remote-controlled chip 20 and infrared transmitting tube 30, the input key 10 are electrically connected with remote-controlled chip 20, remote-controlled chip 20 with it is red
Outer transmitting tube 30 is electrically connected, and 20 pairs of input keys 10 of remote-controlled chip encode, and pass through infrared transmitting tube 30 externally send it is red
Outside line signal.
The utility model further includes infrared receiver portion 40, the infrared receiver portion 40 include infrared receiving terminal 41 and with it is infrared
The connecting terminal 42 that head 41 is electrically connected is received, the infrared receiving terminal 41 receives the infrared ray letter that the infrared transmitting tube 30 is sent
Number, the connecting terminal 42 is connected with the external electronic device 200 of decoding function.
External electronic device 200 includes mobile unit, playing audio/video, Baffle Box of Bluetooth etc., and connecting terminal 42 can be with
It is the included connecting terminal of infrared receiving terminal 41, is also possible in addition increase the connecting terminal on infrared receiving terminal 41, use
When directly by the main control MCU of the connecting terminal 42 of the utility model infrared mutual-tube key circuit 100 and external electronic device 200
One I/O mouthfuls connection, can be the modes such as welded connecting, plug connection.When the utility model infrared mutual-tube key
After one I/O mouthfuls of the connecting terminal 42 of circuit 100 and the main control MCU of external electronic device 200 are connect, input key 10 is received
Push button signalling is encoded by remote-controlled chip 20, then sends pulse signal, infrared receiver portion 40 by infrared transmitting tube 30
41 wireless receiving of the infrared receiving terminal pulse signal, and be transmitted to by connecting terminal 42 master control of external electronic device 200
MCU is decoded, then main control MCU according to it is decoded it is novel electronic equipment is controlled, realize to electronic equipment by
The function of key control, simultaneously because the infrared mutual-tube key circuit 100 of the utility model only takes up the master of external electronic device 200
One I/O mouthfuls of MCU are controlled, in the case of having mostly by key control, dramatically save 200 main control MCU of external electronic device
I/O mouthfuls of resources, make the expansion of other function conducive to external electronic device 200.
Meanwhile to be also highly convenient for some old-fashioned nothings in life more for the infrared mutual-tube key circuit 100 of the utility model
Lifting transformation is carried out by the electronic equipment of key control, as long as by the terminals of the utility model infrared mutual-tube key circuit 100
After son 42 is mostly connect by one I/O mouthfuls of the main control MCU of the electronic equipment of key control with old-fashioned nothing, in conjunction with the program of main control MCU
Old-fashioned nothing can be mostly transformed into the electronic equipment of more key control functions, transformation letter by control by the electronic equipment of key control
Folk prescription just, is suitable for promoting.
Input key 10, remote-controlled chip 20 and the infrared transmitting tube 30 of the utility model infrared mutual-tube key circuit 100
It can be set in a shell, and infrared receiver portion 40 is provided separately with shell.
Specifically, as a kind of embodiment of the utility model, as shown in Fig. 2, 20 model of the remote-controlled chip
RH5404, including OUT pin, I0, to I7 pin and KIO0 to KIO7 pin, the OUT pin connects infrared transmitting tube 30,
The I0 connects 64 bit matrix of composition to I7 pin, KIO0 to KIO7 pin, 64 key switch matrix and inputs keys.Matrix is defeated
Enter key 10 push button signalling is sent to RH5404 remote-controlled chip 20 to encode, then passes through OUT pin, infrared transmitting tube 30
It is sent to infrared receiving terminal 41, and is transmitted to after external electronic device 200 is decoded processing by connecting terminal 42 and controls electricity
Sub- equipment.
The infrared mutual-tube key circuit 100 of the utility model becomes a remote keying that key control is pressed with 64 in this way
Circuit to meet more key control functions of external electronic device 200, while saving the I/O of external electronic device main control MCU
Mouthful.The circuit of the present embodiment infrared mutual-tube key circuit 100 is simple, at low cost, has very strong versatility, is suitable for widely
It promotes and applies.
Preferably, the 41 model HM338R of infrared receiving terminal of the utility model.HM338R dedicated infrared connects as one
Head is received, receiving angle is wide, and it is remote and at low cost to receive distance.
Preferably, the connecting terminal 42 of the utility model is connected with pin end and/or female connector (not shown).In this way, this
Utility model infrared mutual-tube key circuit 100 can by the pin end and/or female connector directly with external electronic device 200 such as
The input interface of mobile unit connects, and use can be easily combined with external electronic device 200 or separates use,
It is convenient to disassembly, while being also transformed conducive to the lifting of used equipment.
As the another embodiment of the utility model, as shown in figure 3,20 model HT6222 of the remote-controlled chip,
Including DOUT pin, R1 to R8 pin and C1 to C8 pin, the DOUT pin connects infrared transmitting tube 30, and the R1 is extremely
R8 pin, C1 to C8 pin, 64 key switch matrix connection 64 bit matrix of composition input key.Input matrix key 10 will be by
Key signals are sent to HT6222 remote-controlled chip 20 and are encoded, and are then sent to by DOUT pin, infrared transmitting tube 30 infrared
Receive head 41, and by connecting terminal 42 be transmitted to external electronic device 200 be decoded processing after controlling electronic devices.
It is appreciated that remote-controlled chip 20 can also be the chip for meeting encoding function of other models.Input key 20
It can be other such as 32 more key-press input key circuits.
The infrared mutual-tube key circuit 100 of the utility model that the utility model embodiment proposes is inputted by setting
Key 10, remote-controlled chip 20, infrared transmitting tube 30 and infrared receiver socket part 40, infrared receiver socket part 40 include infrared receiving terminal
41 and the connecting terminal 42 that is electrically connected with infrared receiving terminal 41, infrared receiving terminal 41 receive the infrared ray that infrared transmitting tube 30 is sent
Signal, connecting terminal 42 are connected with the external electronic device 200 of decoding function.Electronic equipment is using the utility model in this way
Infrared mutual-tube key circuit 100 only needs to realize more key function using one I/O mouthfuls of electronic equipment main control MCU
Can, it is that the main control MCU of electronic equipment saves a large amount of I/O mouthfuls of resource, at low cost, circuit is easy to use, has very strong general
Property, it is suitable for popularization and application.The utility model is a large amount of by existing key circuit by electronic equipment I/O mouthfuls of infrared tube technology solution
The resource bottleneck problem of occupancy, while quick upgrading can be carried out to the electronic equipment in the past without functions of multiple keys and become to have
Press the electronic equipment of key control more.
The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model,
Under all utility models in the utility model are conceived, equivalent structure made based on the specification and figures of the utility model
Transformation, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.
Claims (5)
1. a kind of infrared mutual-tube key circuit, which is characterized in that
It is electrically connected including input key, remote-controlled chip and infrared transmitting tube, the input key with remote-controlled chip, remote-controlled chip
It is electrically connected with infrared transmitting tube, remote-controlled chip encodes input key, and externally sends infrared ray by infrared transmitting tube
Signal；
It further include infrared receiver portion, the infrared receiver portion includes infrared receiving terminal and the terminals that are electrically connected with infrared receiving terminal
Son, the infrared receiving terminal receive the infrared signal that the infrared transmitting tube is sent, and the connecting terminal is connected with decoding function
The external electronic device of energy.
2. infrared mutual-tube key circuit according to claim 1, which is characterized in that the remote-controlled chip model
RH5404, including OUT pin, I0, to I7 pin and KIO0 to KIO7 pin, the OUT pin connects infrared transmitting tube, institute
I0 is stated to I7 pin, KIO0 to KIO7 pin, 64 key switch matrix connection composition 64 bit matrix input keys.
3. infrared mutual-tube key circuit according to claim 1, which is characterized in that the remote-controlled chip model
HT6222, including DOUT pin, R1, to R8 pin and C1 to C8 pin, the DOUT pin connects infrared transmitting tube, described
R1 connects 64 bit matrix of composition to R8 pin, C1 to C8 pin, 64 key switch matrix and inputs keys.
4. infrared mutual-tube key circuit according to claim 1, which is characterized in that the infrared receiving terminal model
HM338R。
5. infrared mutual-tube key circuit according to claim 1, which is characterized in that the connecting terminal is connected with public access
Head and/or female connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821578785.0U CN208819369U (en) | 2018-09-27 | 2018-09-27 | A kind of infrared mutual-tube key circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821578785.0U CN208819369U (en) | 2018-09-27 | 2018-09-27 | A kind of infrared mutual-tube key circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208819369U true CN208819369U (en) | 2019-05-03 |
Family
ID=66278527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821578785.0U Active CN208819369U (en) | 2018-09-27 | 2018-09-27 | A kind of infrared mutual-tube key circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208819369U (en) |
-
2018
- 2018-09-27 CN CN201821578785.0U patent/CN208819369U/en active Active
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