CN208782535U - A kind of charging unit of intelligent bicycle lock - Google Patents
A kind of charging unit of intelligent bicycle lock Download PDFInfo
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- CN208782535U CN208782535U CN201821608133.7U CN201821608133U CN208782535U CN 208782535 U CN208782535 U CN 208782535U CN 201821608133 U CN201821608133 U CN 201821608133U CN 208782535 U CN208782535 U CN 208782535U
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- resistance
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- intelligent bicycle
- bicycle lock
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Abstract
The utility model belongs to intelligent bicycle lock charging technique field, discloses a kind of charging unit of intelligent bicycle lock, comprising: the decompression of input voltage reduced output voltage is controlled chip；The voltage sampling circuit of the output voltage size of detection decompression control chip；The comparator that the output voltage that voltage sampling circuit acquires is compared with reference voltage；The comparison result of the comparator is connected to the feedback pin of the decompression control chip through follower, so that the decompression controls chip constant current output；And voltage control switching circuit；The resistance value size that the voltage control switching circuit controls the feedback resistance of chip by changing the decompression, to realize the switching for the output voltage for being depressured control chip.The utility model realizes the effect of voltage switchable and constant current output；Secondly, can charge simultaneously for multiple intelligent bicycle locks；Also, the effect and intelligent bicycle lock that can monitor charging progress are with the presence or absence of short trouble.
Description
Technical field
The utility model belongs to intelligent bicycle lock charging technique field, and in particular to a kind of charging unit of intelligent bicycle lock.
Background technique
Currently, because increasing the components of some specific functions in the intelligent bicycle lock of shared bicycle, such as GPS positioning system,
Network communication component and some detection parts for having specific function, thus it is larger to the consumption of electric energy, in order to avoid the frequency of battery
Frequency is replaced, therefore generally installs rechargeable battery in existing intelligent bicycle lock.But the charging unit of existing intelligent bicycle lock exists
Following defect:
(1) voltage is non-adjustable, and different products needs different charging units；
(2) output electric current is unstable, easily causes charging failure even security risk.
Utility model content
In order to solve the above problems existing in the present technology, the utility model aim is to provide a kind of filling for intelligent bicycle lock
Electric installation.
The technology employed by the present utility model is a kind of charging unit of intelligent bicycle lock, comprising:
The decompression of input voltage reduced output voltage is controlled into chip；
The voltage sampling circuit of the output voltage size of detection decompression control chip；
The comparator that the output voltage that voltage sampling circuit acquires is compared with reference voltage；The ratio of the comparator
Relatively result is connected to the feedback pin of the decompression control chip through follower, so that the decompression controls chip constant current output；
And voltage control switching circuit；The voltage control switching circuit is by changing the decompression control chip
The resistance value size of feedback resistance, to realize the switching for the output voltage for being depressured control chip.
Further, the decompression control chip, voltage sampling circuit, comparator and follower are respectively arranged with more
It is a, so that the charging unit is multiple intelligent bicycle lock chargings simultaneously.
Further, the voltage control switching circuit include first microprocessor, switch, first resistor, second resistance,
3rd resistor, switching switch and the 4th resistance；It is described switching switch both ends respectively with one end of the 4th resistance and connect；
The other end of 4th resistance is connected with power module；The binding site and the first microprocessor of 4th resistance and switching switch connect
It connects；One end of the second resistance with it is described decompression control chip output pin connect, the other end of second resistance respectively with
The feedback pin connection of one end of first resistor, one end of 3rd resistor and decompression control chip；The other end of 3rd resistor
Ground connection；The other end of first resistor is grounded after switch；The first microprocessor is connected with the driving switch on and off
Driving circuit.
Further, the first microprocessor is connected with the first display.
Further, the power module includes voltage stabilizing chip；The input terminal of voltage stabilizing chip is connect with input power, pressure stabilizing
The output end of chip is connect with the 4th resistance.
Further, the switch is metal-oxide-semiconductor；The driving circuit includes the 5th resistance and the 6th resistance；Described 5th
One end of resistance is connect with first microprocessor, the other end of the 5th resistance grid with one end of the 6th resistance and switch respectively
Pole connection；The other end of 6th resistance is grounded；The source electrode of switch is grounded；The drain electrode of switch is connect with the first resistor.
Further, the voltage sampling circuit includes the second microprocessor, the 7th resistance and the 8th resistance；Described
The both ends of seven resistance are connect with one end of the output pin of the decompression control chip and the 8th resistance respectively, the 8th resistance
Other end ground connection；The binding site of 7th resistance and the 8th resistance is connect with the second microprocessor；Second microprocessor and the ratio
It is connected compared with device.
Further, second microprocessor is connected with second display.
The utility model has the following beneficial effects:
Using the utility model charging unit when, setting first needs the corresponding voltage of current value that exports, then leads to
The size of the output voltage of overvoltage sample circuit acquisition decompression control chip, the output voltage of acquisition and reference voltage are carried out
Compare, when output voltage exceeds, directly drags down the feedback pin of decompression control chip, perseverance is played in control output voltage decline
Flow the effect of output；And the feedback resistance size of the feedback pin by changing decompression control chip, so that feedback voltage size
It changes, so that the effect of output voltage switching is realized, thus compatible all products；Secondly, the utility model passes through setting
Multiple decompression control chip U1, voltage sampling circuit, comparator and follower, convenient for concentrating charging；Also, the utility model
Electric current is shown by setting second display, not only realizes the effect of monitoring charging progress, but also can determine that intelligent bicycle lock whether there is
Short trouble.
Detailed description of the invention
Fig. 1 is a kind of schematic block circuit diagram of the charging unit of intelligent bicycle lock of the utility model；
Fig. 2 is the circuit diagram of decompression control chip in a kind of charging unit of intelligent bicycle lock shown in FIG. 1；
Fig. 3 is the circuit diagram of comparator and follower in a kind of charging unit of intelligent bicycle lock shown in FIG. 1；
Fig. 4 is the circuit diagram of the first display in a kind of charging unit of intelligent bicycle lock shown in FIG. 1；
Fig. 5 is the circuit diagram of second display in a kind of charging unit of intelligent bicycle lock shown in FIG. 1；
Fig. 6 is the circuit diagram of voltage control switching circuit in a kind of charging unit of intelligent bicycle lock shown in FIG. 1；
Fig. 7 is the circuit diagram of voltage sampling circuit in a kind of charging unit of intelligent bicycle lock shown in FIG. 1；
Fig. 8 is the circuit diagram of power module in a kind of charging unit of intelligent bicycle lock shown in FIG. 1.
Specific embodiment
With reference to the accompanying drawing and specific embodiment is further elaborated the utility model.
As shown in Figure 1, the decompression by input voltage reduced output voltage of the present embodiment controls chip U1；As shown in Fig. 2, this reality
It applies in example, decompression control chip U1 is realized using the decompression chip of model AO1212, it is to be understood that decompression control chip
The model that U1 can be used is not limited to that；
The voltage sampling circuit of the output voltage size of detection decompression control chip U1；
The comparator that the output voltage that voltage sampling circuit acquires is compared with reference voltage；The ratio of the comparator
Relatively result is connected to the feedback pin of the decompression control chip U1 through follower, so that decompression control chip U1 constant current is defeated
Out；
And voltage control switching circuit；The voltage control switching circuit controls chip U1 by changing the decompression
Feedback resistance resistance value size, with realize be depressured control chip U1 output voltage switching.
Specifically, as shown in fig. 7, the voltage sampling circuit in the present embodiment includes the second microprocessor U4, the 7th resistance
R31 and the 8th resistance R32；The both ends of the 7th resistance R31 respectively with it is described decompression control chip U1 output pin with
And the 8th resistance R32 one end connection, the 8th resistance R32 the other end ground connection；The knot of 7th resistance R31 and the 8th resistance R32
Chalaza is connect with the second microprocessor U4；Second microprocessor U4 is connect with the comparator.Preferably, for convenience of monitoring charging
Progress, and intelligent bicycle lock is determined with the presence or absence of short trouble, as shown in Fig. 5 and Fig. 7, the second microprocessor U4 is connected with the second display
Device.In the present embodiment, second display is realized using three segment numeral pipes.It is understood that second display can also use
Other displays that can be realized display effect such as LCD display are realized.
As shown in fig. 6, the voltage control switching circuit in the present embodiment includes first microprocessor U3, switch Q1, first
Resistance R7, second resistance R8,3rd resistor R9, switching switch S1 and the 4th resistance R27；The both ends point of the switching switch S1
Not with one end of the 4th resistance R27 and connect；The other end of 4th resistance R27 is connected with power module；4th resistance R27 with
The binding site of switching switch S1 is connect with the first microprocessor U3；One end of the second resistance R8 and the decompression control
The output pin of chip U1 connects, the other end of second resistance R8 respectively with one end of first resistor R7,3rd resistor R8 one
The feedback pin connection of end and decompression control chip U1；The other end of 3rd resistor R9 is grounded；The other end of first resistor R7
It is grounded after switch Q1；The first microprocessor U3 is connected with the driving circuit for driving the switch Q1 on-off.Such as Fig. 6 institute
Show, in the present embodiment, switch Q1 is metal-oxide-semiconductor；The driving circuit includes the 5th resistance R5 and the 6th resistance R6；5th electricity
One end of resistance R5 is connect with first microprocessor U3, the other end of the 5th resistance R5 respectively with one end of the 6th resistance R6 and open
Close the grid connection of Q1；The other end of 6th resistance R6 is grounded；The source electrode of switch Q1 is grounded；The drain electrode of switch Q1 and described first
Resistance R7 connection.It is understood that switch Q1 can also be realized using prior arts such as relay or triodes, tool
Body circuit is common knowledge in the art, is not described in detail herein.In the present embodiment, intuitively determined for convenience of user
Its charging voltage switched, as shown in figs. 4 and 6, first microprocessor U3 is connected with the first display.In the present embodiment, first
Display is realized using two segment numeral pipes.It is understood that the first display can also using LCD display etc. other
The display that can be realized display effect is realized.As shown in figure 8, the power module in the present embodiment includes voltage stabilizing chip U5；Surely
The input terminal of pressure chip U5 is connect with input power, and the output end of voltage stabilizing chip U5 is connect with the 4th resistance R27.Such as Fig. 2
Shown in 7, the power module in the present embodiment is also respectively decompression control chip U1 and the second microprocessor U4 power supply.Such as figure
Shown in 3, power module is also comparator and follower power supply, while also passing through the bleeder circuit of resistance R3 and resistance R4 composition
Reference voltage as comparator.
As shown in Figure 1, being improved efficiency, in the present embodiment, decompression controls chip U1, voltage sample for convenient for concentrating charging
Circuit, comparator and follower be respectively arranged with it is multiple so that the charging unit is the charging of multiple intelligent bicycle locks simultaneously.
The utility model is not limited to above-mentioned optional embodiment, anyone can obtain under the enlightenment of the utility model
Other various forms of products, however, making any variation in its shape or structure, all the utility model rights that falls into are wanted
The technical solution in confining spectrum is sought, is all fallen within the protection scope of the utility model.
Claims (8)
1. a kind of charging unit of intelligent bicycle lock, it is characterised in that: include:
The decompression of input voltage reduced output voltage is controlled into chip (U1)；
The voltage sampling circuit of the output voltage size of detection decompression control chip (U1)；
The comparator that the output voltage that voltage sampling circuit acquires is compared with reference voltage；The comparison knot of the comparator
Fruit is connected to the feedback pin of decompression control chip (U1) through follower, so that decompression control chip (U1) constant current is defeated
Out；
And voltage control switching circuit；The voltage control switching circuit is by changing decompression control chip (U1)
The resistance value size of feedback resistance, to realize the switching for the output voltage for being depressured control chip (U1).
2. a kind of charging unit of intelligent bicycle lock according to claim 1, it is characterised in that: the decompression controls chip
(U1), voltage sampling circuit, comparator and follower are respectively arranged with multiple, so that the charging unit is simultaneously multiple
Intelligent bicycle lock charging.
3. a kind of charging unit of intelligent bicycle lock according to claim 1, it is characterised in that: the voltage switching control electricity
Road includes first microprocessor (U3), switch (Q1), first resistor (R7), second resistance (R8), 3rd resistor (R9), switches and open
Close (S1) and the 4th resistance (R27)；The both ends of the switching switch (S1) connect with one end of the 4th resistance (R27) and ground respectively
It connects；The other end of 4th resistance (R27) is connected with power module；4th resistance (R27) and switching switch (S1) binding site with
First microprocessor (U3) connection；One end of the second resistance (R8) and the output of decompression control chip (U1) are drawn
Foot connection, the other end of second resistance (R8) respectively with one end of first resistor (R7), one end of 3rd resistor (R8) and drop
The feedback pin of voltage-controlled coremaking piece (U1) connects；The other end of 3rd resistor (R9) is grounded；The other end of first resistor (R7) passes through
Switch (Q1) is crossed to be grounded afterwards；The first microprocessor (U3) is connected with the driving circuit for driving described switch (Q1) on-off.
4. a kind of charging unit of intelligent bicycle lock according to claim 3, it is characterised in that: the first microprocessor
(U3) it is connected with the first display.
5. a kind of charging unit of intelligent bicycle lock according to claim 3, it is characterised in that: the power module includes steady
It presses chip (U5)；The input terminal of voltage stabilizing chip (U5) is connect with input power, the output end of voltage stabilizing chip (U5) and the described 4th
Resistance (R27) connection.
6. a kind of charging unit of intelligent bicycle lock according to claim 3, it is characterised in that: the switch (Q1) is MOS
Pipe；The driving circuit includes the 5th resistance (R5) and the 6th resistance (R6)；One end of 5th resistance (R5) and first micro-
Processor (U3) connection, the other end of the 5th resistance (R5) grid with one end of the 6th resistance (R6) and switch (Q1) respectively
Connection；The other end of 6th resistance (R6) is grounded；Switch the source electrode ground connection of (Q1)；Switch the drain electrode and the first resistor of (Q1)
(R7) it connects.
7. a kind of charging unit of intelligent bicycle lock according to claim 1, it is characterised in that: the voltage sampling circuit packet
Include the second microprocessor (U4), the 7th resistance (R31) and the 8th resistance (R32)；Distinguish at the both ends of 7th resistance (R31)
Connect with the output pin of decompression control chip (U1) and one end of the 8th resistance (R32), the 8th resistance (R32) it is another
One end ground connection；The binding site of 7th resistance (R31) and the 8th resistance (R32) is connect with the second microprocessor (U4)；Second micro- place
Reason device (U4) is connect with the comparator.
8. a kind of charging unit of intelligent bicycle lock according to claim 7, it is characterised in that: second microprocessor
(U4) it is connected with second display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821608133.7U CN208782535U (en) | 2018-09-29 | 2018-09-29 | A kind of charging unit of intelligent bicycle lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821608133.7U CN208782535U (en) | 2018-09-29 | 2018-09-29 | A kind of charging unit of intelligent bicycle lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208782535U true CN208782535U (en) | 2019-04-23 |
Family
ID=66161453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821608133.7U Active CN208782535U (en) | 2018-09-29 | 2018-09-29 | A kind of charging unit of intelligent bicycle lock |
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| Country | Link |
|---|---|
| CN (1) | CN208782535U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112398095A (en) * | 2020-12-02 | 2021-02-23 | 福州物联网开放实验室有限公司 | Constant-current charging protection circuit |
-
2018
- 2018-09-29 CN CN201821608133.7U patent/CN208782535U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112398095A (en) * | 2020-12-02 | 2021-02-23 | 福州物联网开放实验室有限公司 | Constant-current charging protection circuit |
| CN112398095B (en) * | 2020-12-02 | 2022-05-27 | 福州物联网开放实验室有限公司 | Constant-current charging protection circuit |
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