CN206640350U - A kind of protection device for preventing electric bicycle charge port short circuit - Google Patents
A kind of protection device for preventing electric bicycle charge port short circuit Download PDFInfo
- Publication number
- CN206640350U CN206640350U CN201720374743.4U CN201720374743U CN206640350U CN 206640350 U CN206640350 U CN 206640350U CN 201720374743 U CN201720374743 U CN 201720374743U CN 206640350 U CN206640350 U CN 206640350U
- Authority
- CN
- China
- Prior art keywords
- charge port
- diode
- positive pole
- negative pole
- short circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a kind of protection device for preventing electric bicycle charge port short circuit.It includes positive pole charge port and negative pole charge port, positive pole charge port is connected with battery discharge loop, the positive pole of battery discharge loop and battery connects, the battery discharge loop includes the first diode, the second diode, current-limiting resistance and voltage-regulator diode, second diode and current-limiting resistance series connection, then with the first diodes in parallel, positive pole charge port connects the positive pole of the first diode, the negative pole of first diode connects the positive pole of battery, negative pole charge port is grounded, the negative pole of voltage-regulator diode is connected between the second diode and current-limiting resistance, the plus earth of voltage-regulator diode.The utility model can be protected to electric bicycle positive pole charge port and negative pole charge port short circuit.
Description
Technical field
A kind of protection device for preventing electric bicycle charge port short circuit is the utility model is related to, belongs to electronic hardware technology
Field.
Background technology
Nowadays, in the market electric bicycle charge port is mostly without any protection, has occurred the N and L of charge port is short
Connect, and the situation for causing human body to burn.N and L short circuits make the direct both positive and negative polarity short circuit electric discharge of battery, damage battery, or even cause fire
Calamity.
Utility model content
In view of this, the utility model provides a kind of protection device for preventing electric bicycle charge port short circuit, can be right
Electric bicycle positive pole charge port and negative pole charge port short circuit are protected.
The utility model solves above-mentioned technical problem by following technological means：
A kind of protection device for preventing electric bicycle charge port short circuit of the present utility model, it include positive pole charge port and
Negative pole charge port, positive pole charge port are connected with battery discharge loop, the positive pole connection of battery discharge loop and battery, the battery
Discharge loop includes the first diode, the second diode, current-limiting resistance and voltage-regulator diode, the second diode and current-limiting resistance string
Connection, then connects the positive pole of the first diode, the negative pole of the first diode connects battery with the first diodes in parallel, positive pole charge port
Positive pole, negative pole charge port ground connection, the negative pole of voltage-regulator diode are connected between the second diode and current-limiting resistance, voltage-regulator diode
Plus earth.
Positive pole charge port and negative pole charge port are joined directly together with charger during charging, positive pole charge port and negative pole when uncharged
During charge port short circuit, battery discharge loop is separated by the first diode.
When the both positive and negative polarity of charger is with positive pole charge port and reversed negative pole charge port, electric current is cut off by the first diode and returned
Road.
Second diode and voltage-regulator diode vise the voltage of the first diode cathode.
The beneficial effects of the utility model：
Personnel protection, prevent from that human body can be burnt positive pole charge port and negative pole charge port short circuit；Prevent and treat short circuit, protection electricity
Pond, positive pole charge port and negative pole charge port short circuit are prevented, battery, which directly discharges, damages battery；Avoid causing fire, prevent battery
Heavy-current discharge holds fire hazardous；Reversal connection is prevented, protects battery, prevents the positive pole and negative pole and the positive pole of charge port of charger
Charge port and negative pole charge port is reversed causes charging to burn out battery；Simple in construction, cost is low.
Brief description of the drawings
The utility model is further described with reference to the accompanying drawings and examples.
Fig. 1 is structural representation of the present utility model.
Embodiment
The utility model is described in detail below with reference to accompanying drawing, as shown in Figure 1：It of the present embodiment includes positive pole
Charge port 1 and negative pole charge port 2, positive pole charge port 1 are connected with battery discharge loop 3, and battery discharge loop 3 and battery 4 are just
Pole connects, and the battery discharge loop 3 includes the first diode 5, the second diode 6, current-limiting resistance 7 and voltage-regulator diode 8, the
Two diodes 6 and current-limiting resistance 7 are connected, then in parallel with the first diode 5, and positive pole charge port 1 is connecing the first diode 5 just
Pole, the negative pole of the first diode 5 connect the positive pole of battery 4, and negative pole charge port 2 is grounded, and the negative pole of voltage-regulator diode 8 is connected to second
Between diode 6 and current-limiting resistance 7, the plus earth of voltage-regulator diode 8.
Positive pole charge port 1 and negative pole charge port 2 are joined directly together with charger during charging, the He of positive pole charge port 1 when uncharged
During negative pole 2 short circuit of charge port, battery discharge loop 3 is separated by the first diode 5.
When the both positive and negative polarity of charger is with positive pole charge port 1 and reversed negative pole charge port 2, electricity is cut off by the first diode 5
Flow back to road.
Second diode 6 and voltage-regulator diode 8 vise the voltage of the positive pole of the first diode 5.
Finally illustrate, above example is only unrestricted to illustrate the technical solution of the utility model, although ginseng
The utility model is described in detail according to preferred embodiment, it will be understood by those within the art that, can be to this
The technical scheme of utility model is modified or equivalent substitution, without departing from the objective and model of technical solutions of the utility model
Enclose, it all should cover among right of the present utility model.
Claims (4)
- A kind of 1. protection device for preventing electric bicycle charge port short circuit, it is characterised in that：Including positive pole charge port and negative pole Charge port, positive pole charge port are connected with battery discharge loop, the positive pole connection of battery discharge loop and battery, the battery discharge Loop includes the first diode, the second diode, current-limiting resistance and voltage-regulator diode, the second diode and current-limiting resistance series connection, Then the positive pole of the first diode is connect with the first diodes in parallel, positive pole charge port, the negative pole of the first diode is connecing battery just Pole, negative pole charge port ground connection, the negative pole of voltage-regulator diode are connected between the second diode and current-limiting resistance, voltage-regulator diode Plus earth.
- A kind of 2. protection device for preventing electric bicycle charge port short circuit according to claim 1, it is characterised in that：Fill Positive pole charge port and negative pole charge port are joined directly together with charger when electric, positive pole charge port and negative pole charge port short circuit when uncharged When, battery discharge loop is separated by the first diode.
- A kind of 3. protection device for preventing electric bicycle charge port short circuit according to claim 1, it is characterised in that：Fill When the both positive and negative polarity of electrical equipment is with positive pole charge port and reversed negative pole charge port, current loop is cut off by the first diode.
- A kind of 4. protection device for preventing electric bicycle charge port short circuit according to claim 1, it is characterised in that：The Two diodes and voltage-regulator diode vise the voltage of the first diode cathode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720374743.4U CN206640350U (en) | 2017-04-11 | 2017-04-11 | A kind of protection device for preventing electric bicycle charge port short circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720374743.4U CN206640350U (en) | 2017-04-11 | 2017-04-11 | A kind of protection device for preventing electric bicycle charge port short circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206640350U true CN206640350U (en) | 2017-11-14 |
Family
ID=60247248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720374743.4U Expired - Fee Related CN206640350U (en) | 2017-04-11 | 2017-04-11 | A kind of protection device for preventing electric bicycle charge port short circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206640350U (en) |
-
2017
- 2017-04-11 CN CN201720374743.4U patent/CN206640350U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171114 Termination date: 20190411 |