CN209028159U - Battery access state detection circuit and connector - Google Patents
Battery access state detection circuit and connector Download PDFInfo
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- CN209028159U CN209028159U CN201821545211.3U CN201821545211U CN209028159U CN 209028159 U CN209028159 U CN 209028159U CN 201821545211 U CN201821545211 U CN 201821545211U CN 209028159 U CN209028159 U CN 209028159U
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Abstract
The utility model discloses a kind of battery access state detection circuit and connectors, wherein battery access state detection circuit includes: connector, order wire circuit, RTC block and controller；Connector is equipped with connection needle, and order wire circuit is electrically connected by connecting needle with battery to be detected, by the voltage transmission of battery to be detected to order wire circuit；Order wire circuit is also electrically connected with RTC block and controller respectively, when battery to be detected is with connecting needle and contacting, it is RTC block power supply by order wire circuit, and the voltage value of the pin of switch controller, controller is set to determine the access state of battery to be detected based on voltage value, circuit structure is greatlied simplify, the area occupied of circuit structure is reduced, reduces cost.
Description
Technical field
The utility model relates to field of circuit technology more particularly to a kind of battery access state detection circuit and connectors.
Background technique
For the circuits such as notebook or all-in-one machine (All In One, AIO), real-time clock usually can be all set
(Real-Time Clock, RTC) battery so that real-time clock (Real-Time Clock, RTC) module under any state all
It can work normally.Judge whether RTC battery accesses mainboard in order to quickly identify, powers for RTC block, in the related technology
There are a kind of identification circuits, as shown in Figure 1, RTC battery is connect by the stitch of connector (Connector) with mainboard.At this point,
Connector then needs that numerous stitch are arranged, and the stitch connecting with RTC block is such as arranged, so that RTC battery is RTC block power supply,
It there is provision of the stitch connecting with the M_TEMP of mainboard chip, so that mainboard chip quickly identifies whether RTC battery accesses mainboard.
In conjunction with Fig. 2, when RTC battery does not access, the voltage value of the stitch of M_TEMP connection is 3.3V；After the access of RTC battery, M_
It is 2V that the voltage value of the stitch of TEMP connection changes from 3.3V.If more stitch is arranged in connector, connector can be made
Increased costs, also will affect the volume of connector, and largely occupy board area.In addition, needing to set between connector and mainboard
Set two connection circuits, it is also desirable to occupy certain board area.And present notebook or all-in-one machine (All In One,
) etc. AIO circuits all develop toward frivolous direction, and board area can be smaller and smaller, how to simplify circuit structure, reduces circuit structure
Area occupied reduces cost, becomes those skilled in the art's urgent problem to be solved.
Utility model content
In view of the above-mentioned problems in the prior art, the utility model provide a kind of battery access state detection circuit and
Connector can simplify circuit structure, reduce the area occupied of circuit structure, reduce cost.
In order to solve the above-mentioned technical problem, technical solution provided by the utility model is:
A kind of battery access state detection circuit comprising: connector, order wire circuit, RTC block and controller；It is described
Connector is equipped with connection needle, and the order wire circuit is electrically connected by the connection needle with battery to be detected, will be described to be detected
The voltage transmission of battery is to the order wire circuit；The order wire circuit is also electrically connected with the RTC block and the controller respectively
It connects, to be RTC block power supply by the order wire circuit when the battery to be detected and the connection needle contact, and
The voltage value for switching the pin of the controller makes the controller determine connecing for the battery to be detected based on the voltage value
Enter state.
Preferably, the connector includes battery connector and motherboard connector, the battery connector setting first
Connect needle, motherboard connector setting the second connection needle, the first connection needle and the second connection needle series connection, described the
One connection needle with the battery to be detected for contacting, and the second connection needle is also electrically connected with the order wire circuit, to pass through
Concatenated first connection needle and described second connects needle for the voltage transmission of the battery to be detected to the order wire circuit.
Preferably, the order wire circuit includes power supply circuit and signal circuit, the power supply circuit and the letter
Number transmission circuit parallel connection；The input terminal of the power supply circuit and the signal circuit connect needle with described second and is electrically connected
It connects, the output end of the power supply circuit is electrically connected with the RTC block, with for RTC block power supply, the signal transmission is electric
The output end on road is electrically connected with the controller, to switch the voltage value of the pin of the controller.
Preferably, the signal circuit includes current-limiting resistance；Between the second connection needle and the controller
It is realized and is electrically connected by the current-limiting resistance.
Preferably, the signal circuit further include: first resistor；The first resistor and the current-limiting resistance are simultaneously
Connection, the first resistor be connected to it is described second connection needle and the current-limiting resistance tie point, the first resistor also with connect
Ground terminal electrical connection.
Preferably, the signal circuit includes the first divider resistance in sequential series, the second divider resistance and electricity
Press control element；First divider resistance is also electrically connected with system power supply end, and the controller is connected to first partial pressure
The tie point of resistance and second divider resistance, the voltage controlled element also connect needle electrical connection with described second；Institute
When stating voltage controlled element and not turning on, the controller is connected to by first divider resistance with the system power supply end, with
The voltage for receiving the system power supply end, it is first divider resistance, second point described in voltage controlled element conducting
The series circuit conducting that piezoresistance and the voltage controlled element are constituted, to switch the voltage value of the pin of the controller.
Preferably, the voltage controlled element is field-effect tube, the grid of the field-effect tube is connect with described second
Needle electrical connection.
Compared with prior art, the utility model has the beneficial effects that:
Battery access state detection circuit provided by the utility model, setting connection needle, is conducted in the connectors with connecting
Circuit is electrically connected with the RTC block and the controller respectively by order wire circuit, can either be powered for the RTC block,
It can guarantee that controller effectively identifies the connection status of battery again, additionally it is possible to simplify the structure of connector, reduce equipment cost, contracting
The volume of small connector.
The utility model also provides a kind of connector, applied to the battery access state detection circuit of electronic equipment, packet
Include: connection needle, for being electrically connected with battery to be detected, the other end of the connection needle is used for and conduction for one end of the connection needle
Circuit electrical connection, wherein the electronic equipment includes the order wire circuit, RTC block and controller, and the order wire circuit also divides
It is not electrically connected with the RTC block and the controller；When the battery to be detected and the connection needle contact, by described
Needle is connected by the voltage transmission of the battery to be detected to the order wire circuit, to pass through the order wire circuit as the RTC mould
Block power supply, and switch by the order wire circuit voltage value of the pin of the controller, make the controller based on the electricity
Pressure value determines the access state of the battery to be detected.
The utility model connector includes: battery connector and motherboard connector；The battery connector setting first connects
Needle, the second connection of motherboard connector setting needle are connect, the first connection needle and the second connection needle are connected, and described first
Connection needle with the battery to be detected for contacting, and the second connection needle is also electrically connected with the order wire circuit, to pass through string
First connection needle of connection and described second connects needle for the voltage transmission of the battery to be detected to the order wire circuit.
Preferably, the first connection needle is one.
Compared with prior art, the utility model has the beneficial effects that:
Connector provided by the utility model, setting connects needle in the connectors, by connecting needle for battery to be detected
Energy transfer can simplify the structure of connector, reduce equipment cost, reduce the volume of connector to order wire circuit.
Detailed description of the invention
Fig. 1 is a kind of circuit diagram of the battery access state detection circuit provided in the related technology；
Fig. 2 is that the voltage status of battery access state detection circuit in the related technology changes schematic diagram；
Fig. 3 is the hardware connection structure schematic diagram of battery access state detection circuit provided by the embodiment of the utility model；
Fig. 4 is the circuit diagram of the first battery access state detection circuit provided by the embodiment of the utility model；
Fig. 5 is that the voltage status of the first battery access state detection circuit in the utility model embodiment changes signal
Figure；
Fig. 6 is the circuit diagram of second of battery access state detection circuit provided by the embodiment of the utility model；
Fig. 7 is that the voltage status of second of battery access state detection circuit in the utility model embodiment changes signal
Figure.
Description of symbols:
1- connector；11- battery connector；12- motherboard connector；2- order wire circuit；21- power supply circuit；22- signal passes
Transmission of electricity road；3-RTC module；4- controller.
Specific embodiment
The embodiments of the present invention are described in detail below in conjunction with attached drawing, but not as the limit to the utility model
It is fixed.
As shown in figure 3, the embodiments of the present invention provide a kind of battery access state detection circuit, comprising: connection
Device 1, order wire circuit 2, RTC block 3 and controller 4；The connector 1 is equipped with connection needle, and the order wire circuit 2 passes through the company
It connects needle to be electrically connected with battery to be detected, by the voltage transmission of the battery to be detected to the order wire circuit 2；The conduction electricity
Road 2 is also electrically connected with the RTC block 3 and the controller 4 respectively, to contact in the battery to be detected with the connection needle
When, it is the RTC block 3 power supply by the order wire circuit 2, and switch the voltage value of the pin of the controller 4, makes described
Controller 4 determines the access state of the battery to be detected based on the voltage value.Wherein, battery to be detected is RTC battery.
Battery access state detection circuit provided by the utility model, the setting connection needle in connector 1, to connect conduction
Circuit 2 is electrically connected with the RTC block 3 and the controller 4 respectively by order wire circuit 2, can either be the RTC block 3
Power supply, and can guarantee the connection status of the effectively identification battery of controller 4, additionally it is possible to simplify the structure of connector 1, reduces equipment
Cost reduces the volume of connector 1.
In order to further increase the performance of the present embodiment battery access state detection circuit, specifically, in setting for connector
Aspect is set, in conjunction with Fig. 4 or Fig. 6, the connector 1 includes battery connector 11 and motherboard connector 12, the battery connector
11 setting the first connection needles, second connection of the setting of motherboard connector 12 needle, the first connection needle and second connection
Needle series connection, the first connection needle with the battery to be detected for contacting, and in conjunction with Fig. 4 or Fig. 6, battery connector passes through RTC/
P stitch is contacted with the anode of the battery to be detected, and the second connection needle is also electrically connected with the order wire circuit 2, to pass through
Concatenated first connection needle and described second connects needle for the voltage transmission of the battery to be detected to the order wire circuit 2.
Here, by battery connector 11 and motherboard connector 12, by the energy transfer of battery to be detected to conducting electricity
Road 2 simplifies the assembling process of electronic product, the electricity between battery and order wire circuit 2 to be detected can be realized by pluggable mode
Connection, it is easy to operate.
Preferably, battery connector is electrically connected by RTC/P stitch with the anode of RTC battery in conjunction with Fig. 4 or Fig. 6, the
One connection needle and the second connection needle are one, can reduce equipment cost, additionally it is possible to reduce occupancy of the connector 1 on mainboard
Area.
In terms of 2 setting of order wire circuit, in conjunction with Fig. 3, the order wire circuit 2 includes power supply circuit 21 and signal circuit
22, the power supply circuit 21 is in parallel with the signal circuit 22；The power supply circuit 21 and the signal circuit 22
Input terminal connect with described second needle electrical connection, in conjunction with Fig. 4 or Fig. 6, the output end of the power supply circuit 21, i.e. VCCRTC
End be electrically connected with the RTC block 3, with for the RTC block 3 power, the output end of the signal circuit 22 with it is described
Controller 4 is electrically connected, to switch the voltage value of the pin of the controller 4.Wherein, power supply circuit 21 is to be laid on mainboard
Metal wire rod, that is, battery to be detected passes sequentially through connection needle and metal wire rod is electrically connected with RTC block 3.Here, this implementation
Example battery access state detection circuit is the power supply of RTC block 3 by power supply circuit 21, by signal circuit 22 and controller 4
Electrical connection, so that variation of the controller 4 based on pin voltage value, detects the access state of battery to be detected.
For the circuit design of signal circuit 22, as a kind of preferred electrical architecture, in conjunction with Fig. 4, the signal is passed
Transmission of electricity road 22 includes current-limiting resistance R1；It is realized between the second connection needle and the controller 4 by the current-limiting resistance R1
Electrical connection.Here, current-limiting resistance R1 is set between battery to be detected and controller 4, to prevent battery to be detected and connector 1
Connection needle contact when electric current it is excessive, influence controller 4 normal work, improve the stability of circuit.
Wherein, the signal circuit 22 further include: first resistor R2；The first resistor R2 and the current-limiting resistance
R1 is in parallel, and the first resistor R2 is connected to the tie point of the second connection needle and the current-limiting resistance R1, first electricity
Resistance R2 is also electrically connected with ground terminal.In conjunction with Fig. 5, here, battery to be detected with connect needle not in contact with when, the pin of controller 4
It is to be connected to by first resistor R2 with ground terminal, at this point, the voltage value of the pin of controller 4 is zero.Battery to be detected with
When the connection needle contact of connector 1, the voltage value of the pin of controller 4 can change, i.e., become 3.3V from 0V, at this point, control
Device 4 processed can judge the access situation of battery to be detected according to the changing condition of pin voltage value.
For the circuit design of signal circuit 22, as another preferred electrical architecture, in conjunction with Fig. 6, the signal
Transmission circuit 22 includes the first divider resistance R3 in sequential series, the second divider resistance R4 and voltage controlled element；Described first
Divider resistance R3 is also electrically connected with system power supply end, and the controller 4 is connected to the first divider resistance R3 and described second
The tie point of divider resistance R4, the voltage controlled element also connect needle electrical connection with described second；Member is controlled in the voltage
When part does not turn on, the controller 4 is connected to by the first divider resistance R3 with the system power supply end, to receive the system
The voltage of system feeder ear, in voltage controlled element conducting, the first divider resistance R3, the second divider resistance R4
The series circuit conducting constituted with the voltage controlled element, to switch the voltage value of the pin of the controller 4.In conjunction with figure
7, here, the first divider resistance R3 is connected to system power supply end, battery to be detected with connect needle not in contact with when, voltage control
Element processed is in close state, and only the circuit between system power supply end and controller 4 is connected, at this point, the electricity of the pin of controller 4
Pressure value is the first voltage value.When the connection needle of battery to be detected and connector 1 contacts, voltage controlled element is on shape
Partial pressure effect, the electricity of the pin of controller 4 can be realized since the first divider resistance R3 and the second divider resistance R4 connects in state
Pressure value can change, i.e., become second voltage value from the first voltage value, such as become 2V from 3.3V, at this point, controller 4 can root
According to the changing condition of pin voltage value, the access situation of battery to be detected is judged.
Wherein, the voltage controlled element is field-effect tube, and the grid of the field-effect tube connect needle electricity with described second
Connection.Here, low in energy consumption, be easily integrated using field-effect tube as voltage controlled element.
The utility model embodiment also provides a kind of connector, and the battery access state applied to electronic equipment detects electricity
Road, in conjunction with Fig. 4 or Fig. 6 comprising: connection needle, one end of the connection needle with battery to be detected for being electrically connected, in conjunction with Fig. 3,
The other end of the connection needle with order wire circuit 2 for being electrically connected, wherein the electronic equipment include the order wire circuit 2,
RTC block 3 and controller 4, the order wire circuit 2 are also electrically connected with the RTC block 3 and the controller 4 respectively；Described
When battery to be detected and the connection needle contact, by the connection needle by the voltage transmission of the battery to be detected to the biography
Conductive path 2 to be the RTC block 3 power supply by the order wire circuit 2, and switches the control by the order wire circuit 2
The voltage value of the pin of device 4 makes the controller 4 determine the access state of the battery to be detected based on the voltage value.
Connector provided by the utility model, the setting connection needle in connector 1, by connecting needle for battery to be detected
Energy transfer can simplify the structure of connector 1, reduce equipment cost, reduce the volume of connector 1 to order wire circuit 2.
In actual application, in conjunction with Fig. 4 or Fig. 6, the present embodiment connector 1 includes: battery connector 11 and mainboard
Connector 12；The battery connector 11 setting the first connection needle, second connection of the setting of motherboard connector 12 needle, described the
One connection needle and the second connection needle series connection, the first connection needle with the battery to be detected for contacting, and described second
Connection needle also be electrically connected with the order wire circuit 2, with by it is concatenated first connection needle and it is described second connection needle will described in
The voltage transmission of battery is detected to the order wire circuit 2.It here, will be to be checked by battery connector 11 and motherboard connector 12
The energy transfer of battery is surveyed to order wire circuit 2, simplifies the assembling process of electronic product, can be realized by pluggable mode to be checked
Being electrically connected between battery and order wire circuit 2 is surveyed, it is easy to operate.
Preferably, battery connector is electrically connected by RTC/P stitch with the anode of RTC battery in conjunction with Fig. 4 or Fig. 6, the
One connection needle and the second connection needle are one, can reduce equipment cost, additionally it is possible to reduce occupancy of the connector 1 on mainboard
Area.
Above embodiments are only the exemplary embodiment of the utility model, are not used in limitation the utility model, this is practical new
The protection scope of type is defined by the claims.Those skilled in the art can be in the essence and protection scope of the utility model
It is interior, various modifications or equivalent replacements are made to the utility model, this modification or equivalent replacement also should be regarded as falling in originally practical new
In the protection scope of type.
Claims (10)
1. a kind of battery access state detection circuit characterized by comprising connector, order wire circuit, RTC block and control
Device；
The connector is equipped with connection needle, and the order wire circuit is electrically connected by the connection needle with battery to be detected, by institute
The voltage transmission of battery to be detected is stated to the order wire circuit；
The order wire circuit is also electrically connected with the RTC block and the controller respectively, in the battery to be detected and institute
It is RTC block power supply by the order wire circuit, and switch the voltage of the pin of the controller when stating connection needle contact
Value, makes the controller determine the access state of the battery to be detected based on the voltage value.
2. battery access state detection circuit according to claim 1, which is characterized in that the connector includes that battery connects
Meet device and motherboard connector, the first connection of battery connector setting needle, the second connection of motherboard connector setting needle, institute
The first connection needle and the second connection needle series connection are stated, the first connection needle is described for contacting with the battery to be detected
Second connection needle is also electrically connected with the order wire circuit, will be described to connect needle by concatenated first connection needle and described second
The voltage transmission of battery to be detected is to the order wire circuit.
3. battery access state detection circuit according to claim 2, which is characterized in that the order wire circuit includes power supply
Circuit and signal circuit, the power supply circuit are in parallel with the signal circuit；
The input terminal of the power supply circuit and the signal circuit connect needle electrical connection, the power supply electricity with described second
The output end on road is electrically connected with the RTC block, with for the RTC block power supply, the output end of the signal circuit with
The controller electrical connection, to switch the voltage value of the pin of the controller.
4. battery access state detection circuit according to claim 3, which is characterized in that the signal circuit includes
Current-limiting resistance；
It is electrically connected between the second connection needle and the controller by current-limiting resistance realization.
5. battery access state detection circuit according to claim 4, which is characterized in that the signal circuit also wraps
It includes: first resistor；
The first resistor is in parallel with the current-limiting resistance, and the first resistor is connected to the second connection needle and the current limliting
The tie point of resistance, the first resistor are also electrically connected with ground terminal.
6. battery access state detection circuit according to claim 3, which is characterized in that the signal circuit includes
First divider resistance, the second divider resistance and voltage controlled element in sequential series；
First divider resistance is also electrically connected with system power supply end, and the controller is connected to first divider resistance and institute
The tie point of the second divider resistance is stated, the voltage controlled element also connect needle electrical connection with described second；
When the voltage controlled element does not turn on, the controller passes through first divider resistance and the system power supply end
Connection, to receive the voltage at the system power supply end, in voltage controlled element conducting, first divider resistance, institute
The series circuit conducting that the second divider resistance and the voltage controlled element constituted is stated, to switch the pin of the controller
Voltage value.
7. battery access state detection circuit according to claim 6, which is characterized in that the voltage controlled element is field
Effect pipe, the grid of the field-effect tube connect needle electrical connection with described second.
8. a kind of connector, the battery access state detection circuit applied to electronic equipment characterized by comprising connection needle,
One end of the connection needle with battery to be detected for being electrically connected, and the other end of the connection needle with order wire circuit for being electrically connected
Connect, wherein the electronic equipment includes the order wire circuit, RTC block and controller, the order wire circuit also respectively with it is described
RTC block and controller electrical connection；
When the battery to be detected and the connection needle contact, the voltage of the battery to be detected is passed by the connection needle
The order wire circuit is transported to, to be RTC block power supply by the order wire circuit, and institute is switched by the order wire circuit
The voltage value for stating the pin of controller makes the controller determine the access shape of the battery to be detected based on the voltage value
State.
9. connector according to claim 8 characterized by comprising battery connector and motherboard connector；
The first connection of battery connector setting needle, the second connection of motherboard connector setting needle, the first connection needle
With the second connection needle series connection, the first connection needle with the battery to be detected for contacting, and the second connection needle is also
It is electrically connected with the order wire circuit, to connect needle for the battery to be detected by concatenated first connection needle and described second
Voltage transmission is to the order wire circuit.
10. connector according to claim 9, which is characterized in that the first connection needle is one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821545211.3U CN209028159U (en) | 2018-09-20 | 2018-09-20 | Battery access state detection circuit and connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821545211.3U CN209028159U (en) | 2018-09-20 | 2018-09-20 | Battery access state detection circuit and connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209028159U true CN209028159U (en) | 2019-06-25 |
Family
ID=66877886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821545211.3U Active CN209028159U (en) | 2018-09-20 | 2018-09-20 | Battery access state detection circuit and connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209028159U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110646643A (en) * | 2019-10-09 | 2020-01-03 | 龙岩烟草工业有限责任公司 | Serial device, detection system and detection method |
| CN111682616A (en) * | 2020-06-19 | 2020-09-18 | 无锡睿勤科技有限公司 | A kind of anti-charged mis-contact circuit system |
| WO2023123955A1 (en) * | 2021-12-30 | 2023-07-06 | 广东高标电子科技有限公司 | Battery pack connection detection apparatus and method, and electric vehicle |
-
2018
- 2018-09-20 CN CN201821545211.3U patent/CN209028159U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110646643A (en) * | 2019-10-09 | 2020-01-03 | 龙岩烟草工业有限责任公司 | Serial device, detection system and detection method |
| CN110646643B (en) * | 2019-10-09 | 2021-11-19 | 龙岩烟草工业有限责任公司 | Serializer, detection system and detection method |
| CN111682616A (en) * | 2020-06-19 | 2020-09-18 | 无锡睿勤科技有限公司 | A kind of anti-charged mis-contact circuit system |
| WO2023123955A1 (en) * | 2021-12-30 | 2023-07-06 | 广东高标电子科技有限公司 | Battery pack connection detection apparatus and method, and electric vehicle |
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