CN219419210U - Self-heating control device with equalization function - Google Patents
Self-heating control device with equalization function Download PDFInfo
- Publication number
- CN219419210U CN219419210U CN202223439760.1U CN202223439760U CN219419210U CN 219419210 U CN219419210 U CN 219419210U CN 202223439760 U CN202223439760 U CN 202223439760U CN 219419210 U CN219419210 U CN 219419210U
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- China
- Prior art keywords
- self
- battery
- control unit
- heating control
- semiconductor switch
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Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 48
- 239000004065 semiconductor Substances 0.000 claims description 24
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a self-heating control device with an equalization function, which belongs to the technical field of battery control circuits and solves the problem that the self-heating device in the prior art is safe and uncontrollable. The utility model is used for controlling the self-heating device of the battery, can realize the balance among the battery cells in the battery box, and can also realize the balance among the battery boxes.
Description
Technical Field
The utility model belongs to the technical field of battery control circuits, and particularly relates to a self-heating control device with an equalization function.
Background
The existing self-heating technology is mainly based on the internal heat source generated by the internal resistance of the nickel sheet or the battery in the battery cell for heating, and compared with the external heat source adopted by the electric heater for heating or the cooling medium for heating, the self-heating technology has the advantages of higher efficiency, more balanced temperature, simpler battery cell grouping structure and the like. The built-in nickel sheet heats the temperature rise fastest, realizes the internal short circuit heating that the people is controllable through the introduction of the third pole piece in the electric core, but also has the security risk.
The existing self-heating technology mainly comprises modes of high-rate direct current discharge based on intermittent instantaneous external short circuit, external alternating current excitation of a power factor correction circuit and bidirectional DCDC, pulse charge and discharge of a double battery pack and bidirectional DCDC, and the like, and has the problems that large energy loss and uncontrollable safety are caused by large current discharge generated by the instantaneous external short circuit, and the requirement on consistency of a battery cell is very high; the external excitation utilizes an external charging pile power supply and a set of conversion device to generate alternating current at the battery side, the device is newly added, and the alternating current has potential influence on the service life of the battery and the system function; the pulse charge and discharge adopts the mutual charge and discharge of double battery packs and DCDC circulation, and the same alternating current is generated for heating, and the same problems exist as the external excitation method.
Disclosure of Invention
The utility model aims at:
in order to solve the problem that the self-heating device in the prior art is safe and uncontrollable, the self-heating control device with the balancing function is provided, so that the balance between the battery cells in the battery boxes can be realized, the balance between the battery boxes can be realized, and a plurality of battery boxes can be connected in parallel at will.
The technical scheme adopted by the utility model is as follows:
the utility model provides a self-heating controlling means with balanced function, includes the system control unit, the system control unit is connected with a plurality of battery boxes of mutual parallel connection, the battery box is connected with a plurality of load units respectively, be connected with self-heating controlling unit between system control unit and the a plurality of battery boxes, self-heating controlling unit passes through system control unit and gathers back with monomer electricity core temperature and voltage, transmits to self-heating controlling unit and carries out heating control, and self-heating controlling unit can be controlled respectively for a plurality of battery boxes or single battery box simultaneously and can realize balanced or the balanced between a plurality of battery boxes of single battery incasement electricity core.
Further, the self-heating control unit comprises a first semiconductor switch S connected in series in turn 1 An inductor coil and a second semiconductor switch S 2 First semiconductor switch S 1 An inductor coil and a second semiconductor switch S 2 Connected in series with the battery box, the first semiconductor switch S 1 Diode D is connected with two ends of the inductance coil in parallel 1 The inductance coil and the second semiconductor switch S 2 Two ends are connected with a diode D in parallel 2 。
Further, the load unit is connected in series with one or more battery boxes.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:
in the step0 stage, the self-heating control unit of the utility model realizes the discharge of the battery by closing the semiconductor switch and simultaneously charges the inductor; step1, the semiconductor switch is turned off, and the energy stored by the inductor reversely charges the battery through the diode; the battery is heated through the rapid cyclic reciprocation of step0 and ststep 1; the device energy consumption is low, and heating efficiency is high, and temperature uniformity is good, discharges to low battery box through self-heating control unit according to the electric quantity difference control high battery box between the battery box, and discharge power is adjustable to realize that the electric quantity is balanced between the battery box, can adjust the parallelly connected quantity of battery box wantonly according to the load demand, satisfies different power user demands.
Drawings
FIG. 1 is a block diagram of the overall structure of the device of the present utility model;
FIG. 2 is a schematic diagram of the self-heating control unit step0 stage switch closure, battery discharge, and inductor charge;
fig. 3 is a schematic diagram of a circuit for turning off a switch and charging a battery in step1 of the self-heating control unit.
The marks in the figure:
s1-first semiconductor switch S 1 ；
S2-second semiconductor switch S 2 ；
D1-diode D 1 ；
D2-diode D 2 。
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
The utility model relates to a self-heating control device with an equalization function, which comprises a system control unit, wherein the system control unit is connected with a plurality of battery boxes which are connected in parallel, the battery boxes are respectively connected with a plurality of load units, a self-heating control unit is connected between the system control unit and the plurality of battery boxes, the self-heating control unit collects the temperature and the voltage of a single battery cell through the system control unit and then transmits the temperature and the voltage to the self-heating control unit for heating control, and the self-heating control unit can be used for respectively controlling the plurality of battery boxes or a single battery box at the same time and realizing the equalization of the battery cells in the single battery box or the equalization among the plurality of battery boxes.
As shown in fig. 1, the self-heating control unit is used as a supplementary unit for system control, and the system control level can be used to collect the temperature and voltage of the single battery cell and then transmit the collected temperature and voltage to the self-heating control unit for heating control, so that the self-heating control unit can realize the simultaneous control of a plurality of battery boxes or a single battery box, and can realize the equalization of the battery cells in the single battery box, and can also realize the equalization among a plurality of battery boxes, thereby achieving the purposes of outputting more power and improving the output power.
The self-heating control unit comprises a first semiconductor switch connected in series in turnS 1 An inductor coil and a second semiconductor switch S 2 First semiconductor switch S 1 An inductor coil and a second semiconductor switch S 2 Connected in series with the battery box, the first semiconductor switch S 1 Diode D is connected with two ends of the inductance coil in parallel 1 The inductance coil and the second semiconductor switch S 2 Two ends are connected with a diode D in parallel 2 。
As shown in fig. 2 and 3, in step0, the semiconductor switch is closed to discharge the battery and charge the inductor; step1, the semiconductor switch is turned off, and the energy stored by the inductor reversely charges the battery through the diode; the battery is heated by rapid cycling of step0 and ststep 1.
The battery has different charge and discharge protection currents under different electric quantity and different temperatures, so that the battery can charge and discharge the battery with the maximum charge and discharge current to rapidly raise the temperature of the battery, the protection currents of the battery under different electric quantity and different temperatures can be considered to be written into a program, a charge and discharge current curve is called by detecting the temperature and the voltage of the single battery cell, and the magnitude of the charge and discharge current is controlled by adding a resistor in a loop.
Preferably, the load unit is connected in series with one or more battery boxes.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (3)
1. The self-heating control device with the equalization function is characterized by comprising a system control unit, wherein the system control unit is connected with a plurality of battery boxes which are connected in parallel, the battery boxes are respectively connected with a plurality of load units, a self-heating control unit is connected between the system control unit and the plurality of battery boxes, the self-heating control unit collects the temperature and the voltage of a single battery cell through the system control unit and then transmits the temperature and the voltage to the self-heating control unit for heating control, and the self-heating control unit can simultaneously control the plurality of battery boxes or the single battery box respectively and realize equalization of the battery cells in the single battery box or equalization among the plurality of battery boxes.
2. Self-heating control device with balancing function according to claim 1, characterized in that the self-heating control unit comprises a first semiconductor switch S connected in series in turn 1 An inductor coil and a second semiconductor switch S 2 First semiconductor switch S 1 An inductor coil and a second semiconductor switch S 2 Connected in series with the battery box, the first semiconductor switch S 1 Diode D is connected with two ends of the inductance coil in parallel 1 The inductance coil and the second semiconductor switch S 2 Two ends are connected with a diode D in parallel 2 。
3. The self-heating control device with a balancing function according to claim 1, wherein the load unit is connected in series with one or more battery boxes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223439760.1U CN219419210U (en) | 2022-12-21 | 2022-12-21 | Self-heating control device with equalization function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223439760.1U CN219419210U (en) | 2022-12-21 | 2022-12-21 | Self-heating control device with equalization function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219419210U true CN219419210U (en) | 2023-07-25 |
Family
ID=87230624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223439760.1U Active CN219419210U (en) | 2022-12-21 | 2022-12-21 | Self-heating control device with equalization function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219419210U (en) |
-
2022
- 2022-12-21 CN CN202223439760.1U patent/CN219419210U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Room 1, 1 / F, building 2, No.2, Keyuan south 2nd Road, high tech Zone, Chengdu, Sichuan 610000 Patentee after: Sichuan Jiayi Xinneng Co.,Ltd. Address before: Room 1, 1 / F, building 2, No.2, Keyuan south 2nd Road, high tech Zone, Chengdu, Sichuan 610000 Patentee before: SICHUAN JIAYI LEIKE ELECTRONIC TECHNOLOGY CO.,LTD. |
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| CP03 | Change of name, title or address |