CN209375632U - A kind of electronic components identification device and electronic building brick - Google Patents
A kind of electronic components identification device and electronic building brick Download PDFInfo
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- CN209375632U CN209375632U CN201920043081.1U CN201920043081U CN209375632U CN 209375632 U CN209375632 U CN 209375632U CN 201920043081 U CN201920043081 U CN 201920043081U CN 209375632 U CN209375632 U CN 209375632U
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- electronic components
- identification device
- accessory interface
- outside appurtenances
- components identification
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Abstract
The utility model relates to a kind of electronic components identification device and electronic building bricks, include the multiple contact terminals of a circuit board and setting on circuit boards including shell, the accessory interface being arranged on shell, accessory interface, further includes at least one sensing unit being arranged in accessory interface；At least one sensing unit incudes the pressure information of contact terminal in outside appurtenances grafting accessory interface and generates corresponding electric signal；Multiple contact terminals are in no outside appurtenances grafting accessory interface in power-off and high-impedance state.When this programme realizes that electronic components identification device is not connected with outside appurtenances, exposed electric interfaces contact is completely isolated, high voltage power supply touching damage accessory interface, accessory interface water inlet, contact terminal electrification and accelerated oxidation exposed for a long time, external abnormal input lead to short circuit or damage when outside appurtenances being avoided to connect, the identification to outside appurtenances can be realized without electric interfaces, do not need the design for changing existing outside appurtenances.
Description
Technical field
The utility model relates to field of electronic devices, more specifically to a kind of electronic components identification device and electronics
Component.
Background technique
Intercom is a kind of bidirectional mobile communication instrument, in the case where not needing any network support, so that it may be realized
Call in a certain range, and telephone expenses are not generated, it is led suitable for relatively fixed and frequently conversing occasion, therefore in security protection
Domain is using more and more extensive.
The accessory connection type of common intercom uses spring needle frequently with the exposed copper contact of host computer side, accessory side in the market
The mode of connector, and interface is at working condition in booting.There is voltage difference between the different contacts of accessory interface at this time,
Contact is also easy to produce electrochemical corrosion when encountering water or being in moist environment for a long time, which will lead to host accessory interface
It is not available；Part accessory interface is directly connected to host inside chip, is easily led to and is touched high-voltage power supply or external environment and cause
It is short-circuit between host side difference contact, damage host inside chip is easily led to, which will lead to host damage.
Currently, the mode for generalling use increase access flap regarding to the issue above avoids host side accessory interface and external environment
Contact.Which can not fundamentally solve the problems, such as that accessory interface is made moist first, can only delay；Secondly because accessory need to often make
With, cause access flap to be frequently necessary to dismantle, it is inconvenient and easy to be lost.
To solve the above-mentioned problems, it is existing additionally use using more I/O port level logics or ADC detection identification and
At intercom accessory interface place mechanical key mode, but these modes have the defects that it is certain.Utilize more I/O port level
Logic or ADC detection know method for distinguishing: identification interface must charge and it is exposed outside to be easy to cause accessory to connect when
High voltage power supply touching damage interface, attachment interface water inlet, contact accelerated oxidation exposed for a long time, external abnormal input lead to machine
The problems such as device short circuit or damage；It needs to increase additional electric interfaces as accessory and identifies interface.At intercom accessory interface
The method for placing mechanical key: in accessory access, key needs biggish stroke, deposits asking of damaging after prolonged use
Topic, and mechanical key is easy because causing key stuck into foreign matter；It can not accomplish to identify fitting type, need to increase additional electricity
Gas interface identifies interface as accessory.
Utility model content
The technical problem to be solved by the present invention is in view of the above drawbacks of the prior art, provide a kind of electronics and match
Part identification device and electronic building brick.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of electronic components identification device is constructed,
Accessory interface, the accessory interface including shell, setting on the housing include a circuit board and are arranged in the electricity
Multiple contact terminals on the plate of road further include at least one sensing unit being arranged in the accessory interface；
The pressure of the contact terminal is incuded when at least one sensing unit accessory interface described in outside appurtenances grafting
Force information simultaneously generates corresponding electric signal；
In power-off and high-impedance state when the multiple contact terminal accessory interface described in no outside appurtenances grafting.
Preferably, at least one described sensing unit is incuded between the circuit board and the shell, and with it
Contact terminal be correspondingly arranged.
Preferably, the shell is equipped at least one and is used to supply at least one sensing unit accommodating therein recessed
Slot, the opening of the groove is towards the circuit board.
It preferably, further include the control circuit being connect at least one described sensing unit；
The control circuit be used at least one described sensing unit generate electric signal when, identify the outside appurtenances,
And working condition corresponding with the outside appurtenances is set by the accessory interface after identifying the outside appurtenances.
Preferably, the control circuit includes control chip, and the control chip is equipped with multiple IO and detects port, described more
A IO detection port is connect at least one described sensing unit respectively.
It preferably, further include switch, the switch includes control terminal, input terminal and output end；
The control terminal of the switch is connect with the control chip, and the input terminal of the switch connects power supply, the switch
Output end connect any one contact terminal in the multiple contact terminal.
Preferably, the switch is N-type metal-oxide-semiconductor.
Preferably, the sensing unit is pressure sensor.
Preferably, the electronic components identification device is handheld terminal.
The utility model also provides a kind of electronic building brick, including above-described electronic components identification device and outside are matched
Part.
A kind of electronic components identification device for implementing the utility model has the advantages that the utility model is realized
When electronic components identification device is not connected with outside appurtenances, exposed electric interfaces contact is completely isolated, when outside appurtenances being avoided to connect
High voltage power supply touching damage accessory interface, accessory interface water inlet, contact terminal electrification and exposed accelerated oxidation, outside for a long time
Abnormal input leads to short circuit or damage, and the identification to outside appurtenances can be realized without electric interfaces, do not need to change
The design of existing outside appurtenances.
Detailed description of the invention
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing:
Fig. 1 is a kind of functional block diagram of electronic components identification device provided by the utility model；
Fig. 2 is a kind of structural schematic diagram of electronic components identification device provided by the utility model；
Fig. 3 is a kind of sectional view of the accessory interface of electronic components identification device provided by the utility model；
Fig. 4 is a kind of circuit diagram of electronic components identification device first embodiment provided by the utility model；
Fig. 5 is a kind of electronic components identification device second embodiment sensing unit and contact terminal provided by the utility model
Structural schematic diagram；
Fig. 6 is the circuit diagram of Fig. 5.
Specific embodiment
For a clearer understanding of the technical features, objectives and effects of the utility model, now control attached drawing carries out
It is described in detail.
Fig. 1 to Fig. 3 shows a kind of electronic components identification device provided by the utility model, the electronic components identification device
For handheld terminal, for example, can be the handheld terminals such as mobile phone, intercom.
As shown in Figure 1, the electronic components identification device includes: shell 10, setting accessory interface 20 on the housing 10, matches
Part interface 20 includes a circuit board 201 and the multiple contact terminals 202 being arranged on circuit board 201, further includes that setting is being matched
At least one sensing unit 203 in part interface 20；At least one sensing unit 203 is in outside appurtenances grafting accessory interface 20
Incude the pressure information of contact terminal 202 and generates corresponding electric signal.Wherein, multiple contact terminals 202 are in no outside appurtenances
In power-off and high-impedance state when grafting accessory interface 20.
Wherein, which connects between circuit board 201 and shell 10, and with what it was incuded
Contravention 202 is correspondingly arranged.
As shown in figure 3, for the diagrammatic cross-section of the device position in accessory interface 20.
The circuit board 201 includes pcb board, and the front of pcb board is arranged in contact terminal 202, and the correspondence of sensing unit 203 is tied up
The bottom surface of pcb board is arranged in fixed contact terminal 202, i.e., between the sensing unit 203 and contact terminal 202 of the utility model between
It is separated with circuit board 201, and sensing unit 203 can according to need and be arranged on the corresponding position of contact terminal not 202.Example
Such as, it when needing to bind different contact terminals 202 according to different functions, respectively corresponds bound contact terminal 202 and sets
Set corresponding sensing unit 203.As illustrated in fig. 2, it is assumed that contact terminal 202A binds a certain set-up function, then in circuit board 201
A sensing unit 203 is arranged in the underface of face contact terminal 202A；Or assume contact terminal 202A, contact terminal 202B
Simultaneously be bound a certain set-up function, then circuit board 201 face contact terminal 202A and face contact terminal 202B just under
Two sensing units 203 are respectively set in side.That is, the sensing unit 203 of the utility model need to be according to bound contact
Terminal 202 is correspondingly arranged, and one, two or multiple sensing units 203 positioned at different location can be set, wherein induction
The position of unit 203 and the position of the contact terminal 202 incuded required for it are correspondingly arranged.The utility model does not limit specifically
It is fixed.
Further, it is therein recessed for accommodating at least one sensing unit 203 that it is equipped at least one on the housing 10
Slot (not shown), the opening of groove is towards circuit board 201.Wherein, the depth of groove can be placed in groove with sensing unit 203
And sensing unit 203 and circuit board 201 are the state of micro- contact, i.e., when no outside appurtenances is inserted into accessory interface 20, induction
Unit 203 is in not subjected to pressure state.
Further, as shown in Fig. 2, the electronic components identification device further includes connecting at least one sensing unit 203
Control circuit 30.
Control circuit 30 is used to identify outside appurtenances, and identifying when at least one sensing unit 203 generates electric signal
Working condition corresponding with outside appurtenances is set by accessory interface 20 after outside appurtenances out.
Wherein, control circuit 30 includes control chip, and control chip is equipped with multiple IO and detects port, and multiple IO detect port
It is connect respectively at least one sensing unit 203.
Further, control circuit 30 is also used to be arranged the working condition of accessory interface 20.Specifically, matching in no outside
When part is inserted into accessory interface 20, accessory contact is set off working state by control circuit 30；When have outside appurtenances be inserted into accessory
When interface 20, accessory interface 20 is set off working state by control circuit 30.
In the present embodiment, control circuit 30 and some or all contact terminals 202 being arranged on circuit board 201 are not according to
Function with outside appurtenances is bound.When the setting of accessory interface 20 is in working condition by control circuit 30, it is arranged in circuit
At least partly contact terminal 202 on plate 201 is in and can communicate or energized state, at this point, the part contact terminal 202 is usual
Electrification is in low resistance state.Correspondingly, when accessory interface 20 is off working state, it is arranged in all on circuit board 201
Contact terminal 202 is in power-off and high-impedance state.
As shown in Fig. 2, the accessory interface 20 of the electronic components identification device of the utility model using pcb board as carrier, contacts
For terminal 202 in the front of pcb board, sensing unit 203 is located at the underface of the contact terminal 202 of binding, i.e., between pcb board,
It is isolated between sensing unit 203 and contact terminal 202 by PCB, the pcb board back side is contacted with shell 10.
When not having outside appurtenances to be inserted into accessory interface 20, sensing unit 203 is open-circuit condition, and control circuit 30 will be arranged
It is disposed as powering off and in high-impedance state in the positive all contact terminals 202 of pcb board.
When there is outside appurtenances to be inserted into accessory interface 20, setting is in the positive contact terminal of pcb board 202 by outside appurtenances
Extruding generate towards pcb board pressure, which is applied to corresponding with the contact terminal 202 of the outside appurtenances function binding
On sensing unit 203, when these corresponding sensing units 203 sense the pressure of bound contact madman, sensing unit 203
Corresponding corresponding conducting resistance is generated, and then generates corresponding electric signal, while the electric signal is detected by control circuit 30,
Control circuit 30 identifies the type of outside appurtenances according to detected electric signal, and controls corresponding contact terminal 202 and lead
Lead to and be in the working condition of setting, completes the connection of electronic components identification device and outside appurtenances.
Optionally, the sensing unit 203 of the utility model includes but is not limited to pressure sensor.Pressure sensor is a kind of
Power responsive type device shows as opening a way when the power being applied thereto is lower than certain value；When the power being applied thereto is higher than centainly
When value, resistance variations can be turned on and generated, resistance value is inversely proportional with the power size being applied thereto.Specifically, pressure sensing
The conduction threshold of device is about 30g power, and when the power being applied thereto is greater than 150g, conducting resistance is lower than 5000 ohm.So
When the utility model is using outside appurtenances insertion accessory interface 20, the thimble (such as POGO PIN needle) of outside appurtenances abuts setting and exists
Contact terminal 202 on pcb board and generate certain pressure, the pressure conduction to pressure sensing corresponding with contact terminal 202
It is to be the resistance of certain resistance value from open circuit variation, and then the change is detected by control circuit 30 from pressure sensor on device
The electric signal of change, then by control circuit 30 according to the type of electric signal detected identification outside appurtenances and to contact terminal 202
Control.
Further, the utility model, which is also achieved, identifies that outside appurtenances connects with accessory without electric interfaces
Whether mouth 20 connects and connection type, and without carrying out corresponding change in design for accessory.Meanwhile the utility model is logical
Excessive contact terminal 202 detects the type identification that outside appurtenances may be implemented, and the fitting type according to connection is by control circuit 30
Control fitting interface 20 is in corresponding working condition；And it may determine that whether outside appurtenances connects by the size of detected resistance
It connects reliable.In addition, the contact madman on pcb board is arranged in not connected outside appurtenances in the accessory interface 20 of the utility model
When it is fully powered-off and be in high-impedance state, when so as to effectively outside appurtenances be avoided to connect high voltage power supply touching damage accessory interface
20, attachment interface water inlet, the electrification of contact terminal 202 and accelerated oxidation exposed for a long time, external abnormal input cause machine suitable
In or the problems such as damage.
Further, as shown in Fig. 2, the electronic components identification device further includes switch 40, which includes control terminal, defeated
Enter end and output end；The control terminal of switch 40 is connect with control chip, and the input terminal of switch 40 connects power supply, the output of switch 40
End connects any one contact terminal 202 in multiple contact terminals 202.
Optionally, which can be N-type metal-oxide-semiconductor.
It is a kind of circuit diagram of electronic components identification device first embodiment provided by the utility model with reference to Fig. 4.
In this embodiment, sensing unit 203 includes a pressure sensor, which terminates power vd D,
The other end is by a precision resister R ground connection, and the connecting node of pressure sensor and precision resister R are also connected with control electricity
The IO detection mouth on road 30.
As shown in figure 4, the thimble at outside appurtenances end is pressed together on accessory interface 20 when outside appurtenances is inserted into accessory interface 20
Contact terminal 202 on, and then generate certain touch pressure.Pressure sensor detects the touch pressure, and generates corresponding
Resistance value, the resistance value and precision resister R, which are formed, to be divided；Control circuit 30 detects pressure sensor and high-precision by detection I/O port
The voltage value of node between resistance R, according to the voltage value judge outside appurtenances whether connect and connect it is whether reliable, thus real
Show for detecting whether there is the function of outside appurtenances access accessory interface 20.
It is a kind of circuit diagram of electronic components identification device second embodiment provided by the utility model with reference to Fig. 5.
In this embodiment, there are two the contact terminals 202 of binding, similarly, the two contact terminals 202 just under
Side (be separated with pcb board) is respectively equipped with two pressure sensors.Data by increasing pressure sensor may be implemented accessory and connect
Connect detection and fitting type identification function.
Wherein, the circuit diagram of the embodiment is as shown in Figure 6.The first end of first pressure sensor 501 connects power vd D,
The first end of the second end connection second pressure sensor 502 of first pressure sensor 501, the of second pressure sensor 502
Two ends ground connection；The second end of first pressure sensor 501 connect control with the connecting node of the first end of second pressure sensor 502
The IO detection mouth of circuit 30 processed.The lower section of the first contact terminal 1, second pressure sensor is arranged in first pressure sensor 501
502 are arranged in the lower section of the second contact terminal 2.
Its concrete operating principle are as follows: when not there is outside appurtenances to access accessory interface 20, two pressure sensors are not felt
Touch pressure is measured, so two pressure sensors are in open-circuit condition.First contact terminal 1 is touched, the second contact terminal 2
When not touched, the signal of IO detection mouth detection is VDD, and then identifies that outside appurtenances is Class1；First contact terminal 1 not by
It presses, when the second contact terminal 2 is touched, the signal of IO detection mouth detection is GND, and then identifies that outside appurtenances is type 2；
When the first contact terminal 1 and touched the second contact terminal 2, IO detection mouth is detected as intermediate value, and then identifies that outside appurtenances is
Type 3；When the first contact terminal 1 and not touched the second contact terminal 2, signal is not detected in IO detection mouth, and then judges
There is no outside appurtenances to access accessory interface 20.It will of course be understood that ground identifies in some other embodiment when needing to detect
Fitting type increase when, can by expand detection contact terminal 202 and detection I/O port, by contact madman it is reasonable
Arrangement is realized, for example, can recognize up to 10 kinds of fitting types using 4 contact madman.When control circuit 30 identifies that outside is matched
After the type of part, i.e., corresponding contact terminal 202 is connected and is in corresponding working condition in control fitting interface 20.
The electronic components identification device of the utility model may be implemented when accessory interface 20 does not access outside appurtenances, exposed
The contact terminal 202 of electric interfaces is completely isolated, while the identification to external fitting type can be realized without electric interfaces,
The design of existing accessory is not needed to change.
Further, the utility model additionally provides a kind of electronic building brick, which includes that electronics above-mentioned is matched
Part identification device and outside appurtenances.
Above embodiments are only to illustrate the technical ideas and features of the present invention, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement accordingly, the protection scope of the utility model can not be limited.It is all with
The equivalent changes and modifications that the utility model claims range is done, should belong to the utility model claims covers model
It encloses.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations all should belong to the protection scope of the appended claims for the utility model.
Claims (10)
1. a kind of electronic components identification device, which is characterized in that including shell, setting accessory interface on the housing, institute
Multiple contact terminals that accessory interface includes a circuit board and is arranged on the circuit board are stated, further include that setting is matched described
At least one sensing unit in part interface；
The pressure letter of the contact terminal is incuded when at least one sensing unit accessory interface described in outside appurtenances grafting
It ceases and generates corresponding electric signal；
In power-off and high-impedance state when the multiple contact terminal accessory interface described in no outside appurtenances grafting.
2. electronic components identification device according to claim 1, which is characterized in that at least one described sensing unit is located at
Between the circuit board and the shell, and the contact terminal incuded with it is correspondingly arranged.
3. electronic components identification device according to claim 2, which is characterized in that the shell is equipped at least one use
In accommodating groove therein at least one described sensing unit, the opening of the groove is towards the circuit board.
4. electronic components identification device according to claim 1, which is characterized in that further include and at least one described induction
The control circuit of unit connection；
The control circuit is used to identify the outside appurtenances when at least one described sensing unit generates electric signal, and
It identifies and sets working condition corresponding with the outside appurtenances for the accessory interface after the outside appurtenances.
5. electronic components identification device according to claim 4, which is characterized in that the control circuit includes control core
Piece, the control chip are equipped with multiple IO and detect port, and the multiple IO detection port is single at least one described induction respectively
Member connection.
6. electronic components identification device according to claim 5, which is characterized in that further include switch, the switch includes
Control terminal, input terminal and output end；
The control terminal of the switch is connect with the control chip, and the input terminal of the switch connects power supply, the switch it is defeated
Outlet connects any one contact terminal in the multiple contact terminal.
7. electronic components identification device according to claim 6, which is characterized in that the switch is N-type metal-oxide-semiconductor.
8. electronic components identification device according to claim 1-7, which is characterized in that the sensing unit is pressure
Force snesor.
9. electronic components identification device according to claim 1, which is characterized in that the electronic components identification device is hand
Hold terminal.
10. a kind of electronic building brick, which is characterized in that including the described in any item electronic components identification devices of claim 1-9 and
Outside appurtenances.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920043081.1U CN209375632U (en) | 2019-01-11 | 2019-01-11 | A kind of electronic components identification device and electronic building brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920043081.1U CN209375632U (en) | 2019-01-11 | 2019-01-11 | A kind of electronic components identification device and electronic building brick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209375632U true CN209375632U (en) | 2019-09-10 |
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ID=67825292
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920043081.1U Active CN209375632U (en) | 2019-01-11 | 2019-01-11 | A kind of electronic components identification device and electronic building brick |
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| Country | Link |
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| CN (1) | CN209375632U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111929734A (en) * | 2020-05-29 | 2020-11-13 | 维沃移动通信有限公司 | Electronic apparatus and control method |
-
2019
- 2019-01-11 CN CN201920043081.1U patent/CN209375632U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111929734A (en) * | 2020-05-29 | 2020-11-13 | 维沃移动通信有限公司 | Electronic apparatus and control method |
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