CN219677594U - Battery control circuit and battery pack - Google Patents
Battery control circuit and battery pack Download PDFInfo
- Publication number
- CN219677594U CN219677594U CN202321020972.8U CN202321020972U CN219677594U CN 219677594 U CN219677594 U CN 219677594U CN 202321020972 U CN202321020972 U CN 202321020972U CN 219677594 U CN219677594 U CN 219677594U
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- control circuit
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- 238000002955 isolation Methods 0.000 claims description 21
- 230000000087 stabilizing effect Effects 0.000 claims description 19
- 238000001514 detection method Methods 0.000 claims description 15
- 230000008054 signal transmission Effects 0.000 claims description 5
- 238000003466 welding Methods 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 15
- 238000010586 diagram Methods 0.000 description 14
- 239000000463 material Substances 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 238000010923 batch production Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- MFIWAIVSOUGHLI-UHFFFAOYSA-N selenium;tin Chemical compound [Sn]=[Se] MFIWAIVSOUGHLI-UHFFFAOYSA-N 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 1
Classifications
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- 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
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- Battery Mounting, Suspending (AREA)
Abstract
The utility model provides a battery control circuit and a battery pack, wherein the battery control circuit is adapted to a battery shell with an elongated surface, and comprises a first circuit board with a control unit and a second circuit board with a switching unit; and the control unit on the first circuit board is connected with the switching unit on the second circuit board in a plug-in connection way through the plug-in connector and the jack. Compared with the connection mode of wire welding, the connection mode of grafting is more swift convenient, and the operation degree of difficulty is lower, has improved the efficiency of connection. In addition, the plug connection mode is adopted, errors are not easy to occur in the connection process, the accuracy of a connection result is guaranteed, and the reliability of a battery control circuit is further guaranteed.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a battery control circuit and a battery pack.
Background
The cell refers to an electrochemical cell comprising a single positive electrode and a single negative electrode. The battery core cannot be directly used as a battery, and the protection and the shell inside the battery are required to work in a coordinated manner.
The control circuit in the existing battery is mostly connected with external equipment (such as a main board of the whole battery) in a wire welding mode, the wire welding operation is difficult, the welding time is long, and the phenomenon of cold joint or cold joint can occur. Therefore, the conventional wire bonding method has low connection efficiency.
Disclosure of Invention
Accordingly, an objective of the present utility model is to provide a battery control circuit and a battery pack for solving the technical problem of low connection efficiency in the conventional wire bonding method.
In a first aspect, embodiments of the present utility model provide a battery control circuit adapted to a battery housing having an elongated surface; the battery control circuit includes:
a first circuit board with a control unit and a second circuit board with a switching unit;
the first circuit board is arranged on the long and narrow surface of the battery shell; the second circuit board is arranged on the end surface of the battery shell, which is adjacent to the long and narrow surface;
the first circuit board includes a first end proximate to the second circuit board; the second circuit board includes a second end proximate the first circuit board;
one of the first end and the second end is provided with a first preset number of jacks, and the other of the first end and the second end is provided with connectors corresponding to the number of the jacks;
the plug connector is configured to be plug-connected with the jack so as to realize connection of the control unit and the switching unit.
In the implementation process, the battery control circuit realizes the plug connection of the control unit positioned on the first circuit board and the switching unit positioned on the second circuit board through the plug connection of the plug connector and the jack; the battery control circuit can be connected with external equipment based on the switching unit. Compared with the connection mode of wire welding, the connection mode of grafting is more swift convenient, and the operation degree of difficulty is lower, has improved the efficiency of connection. In addition, the plug connection mode is adopted, errors are not easy to occur in the connection process, the accuracy of a connection result is guaranteed, and the reliability of a battery control circuit is further guaranteed.
Optionally, in an embodiment of the present utility model, a second preset number of first connection holes are distributed on the first circuit board; the first circuit board is mounted on the long and narrow surface of the battery shell through the first connecting hole and the first connecting piece matched with the first connecting hole.
In the above implementation process, the first circuit board is disposed on the long and narrow surface of the battery case through the first connection member and the first connection holes distributed on the first circuit board. The connection mode reduces the operation complexity of the installation and the disassembly of the first circuit board, is convenient for quickly replacing the fault components when the electronic components are in fault, is more convenient to maintain, simplifies the assembly flow of the battery pack comprising the battery control circuit, and improves the efficiency of batch production.
Optionally, in an embodiment of the present utility model, a third preset number of second connection holes are distributed on the second circuit board; the second circuit board is mounted on the end surface of the battery case adjacent to the elongated surface through the second connection hole and a second connection member fitted to the second connection hole.
In the implementation process, the second circuit board is arranged on the end surface of the battery shell adjacent to the long and narrow surface through the second connecting piece and the second connecting holes distributed on the second circuit board. The connection mode reduces the operation complexity of the installation and the disassembly of the second circuit board, is convenient for quickly replacing the fault components when the electronic components are in fault, is more convenient to maintain, simplifies the assembly flow of the battery pack comprising the battery control circuit, and improves the efficiency of batch production.
Optionally, in an embodiment of the present utility model, the plug connector is soldered with the socket by solder after being plugged with the socket; the plug connector is plugged with the jack to form a signal end, and the signal end is configured to realize signal transmission between the control unit and the switching unit.
In the implementation process, after the connection, the first circuit board and the second circuit board are connected more firmly by welding with solder. And the plug connector is plugged with the jack to form a signal end, so that signal transmission between the control unit and the switching unit is ensured, and the reliability of the battery control circuit is improved.
Optionally, in an embodiment of the present utility model, the signal terminal includes: the first signal end, the second signal end, the third signal end and the fourth signal end; the first signal end is respectively connected with a signal transmitting interface of the control unit and a signal receiving interface of the switching unit; the second signal end is respectively connected with the signal receiving interface of the control unit and the signal transmitting interface of the switching unit; the third signal end is respectively connected with the power interface of the control unit and the power interface of the switching unit; the fourth signal end is respectively connected with the grounding interface of the control unit and the grounding interface of the switching unit.
In the implementation process, through the first signal end, the second signal end, the third signal end and the fourth signal end, the transmission of one path of signals between the control unit and the switching unit is respectively realized, the guarantee is provided for the signal transmission between the control unit and the switching unit, and the reliability of the battery control circuit is improved.
Optionally, in an embodiment of the present utility model, the first circuit board further has an isolation unit; one end of the isolation unit is configured to be connected with the control unit, and the other end of the isolation unit is configured to be connected with the switching unit; the isolation unit is configured to isolate an electrical signal between the control unit and the switching unit.
In the implementation process, the isolation unit is used for isolating the electric signals between the control unit and the switching unit, so that the anti-interference capability of the battery control circuit can be improved; and when hot plug is carried out between the first circuit board and the second circuit board, certain devices in the battery control circuit are prevented from being burnt. In addition, the interference of the common grounding terminal to the battery control circuit can be effectively restrained.
Optionally, in an embodiment of the present utility model, the isolation unit includes a first photo coupler and a second photo coupler; one end of the first photoelectric coupler is configured to be connected with a signal transmitting interface of the control unit, and the other end of the first photoelectric coupler is configured to be connected with a signal receiving interface of the switching unit; one end of the second photoelectric coupler is configured to be connected with the signal receiving interface of the control unit, and the other end of the second photoelectric coupler is configured to be connected with the signal transmitting interface of the switching unit.
In the implementation process, the first photoelectric coupler is used for isolating the signals sent by the control unit to the switching unit, and the second photoelectric coupler is used for isolating the signals sent by the switching unit to the control unit, so that the mutual interference of the signals between the control unit and the switching unit is avoided, and the anti-interference capability of the battery control circuit is improved.
Optionally, in an embodiment of the present utility model, the first circuit board further has a voltage stabilizing unit; one end of the voltage stabilizing unit is configured to be connected with the control unit, and the other end of the voltage stabilizing unit is configured to be connected with the battery cell; the voltage stabilizing unit is configured to stabilize the output voltage of the battery cell within a preset voltage value range.
In the implementation process, the output voltage of the battery core is stabilized within the preset voltage value range through the voltage stabilizing unit, so that the electric equipment powered by the battery containing the battery control circuit can work normally under the stable rated voltage.
Optionally, in an embodiment of the present utility model, the second circuit board further has a temperature detecting unit; one end of the temperature detection unit is configured to be grounded, and the other end of the temperature detection unit is configured to be connected with external equipment; the temperature detection unit is configured to detect an ambient temperature of the battery cell.
The environment temperature of the battery cell is too high, so that the charging current can be indirectly increased, meanwhile, the damage speed of the battery body structure can be increased, and in addition, the environment temperature of the battery cell exceeds the temperature threshold value which can be born by the battery cell, so that dangerous situations such as internal short circuit, ignition or explosion of the battery can be possibly caused.
In the implementation process, the temperature detection unit is used for detecting the ambient temperature of the battery cell, so that the occurrence of the dangerous situation can be avoided by avoiding the excessively high ambient temperature of the battery cell, and the reliability of the battery control circuit is further improved.
In a second aspect, an embodiment of the present utility model further provides a battery pack, including: a battery cell, a battery housing, and a battery control circuit as described in the first aspect above; wherein the battery housing has an elongated surface, the battery control circuit being adapted to the battery housing.
By adopting the battery control circuit and the battery pack provided by the utility model, the control unit on the first circuit board is connected with the switching unit on the second circuit board in a plugging manner through the plug connection of the plug connector and the jack; the battery control circuit can be connected with external equipment based on the switching unit. Compared with the connection mode of wire welding, the connection mode of grafting is more swift convenient, and the operation degree of difficulty is lower, has improved the efficiency of connection. In addition, the plug connection mode is not easy to make mistakes in the connection process, the accuracy of a connection result is guaranteed, and further the reliability of a battery control circuit and a battery pack comprising the battery control circuit is guaranteed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments of the present utility model will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present utility model and should not be considered as limiting the scope, and other related drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a first battery control circuit according to an embodiment of the present utility model;
fig. 2 is a schematic structural diagram of a second battery control circuit according to an embodiment of the present utility model;
fig. 3 is a schematic structural diagram of a third battery control circuit according to an embodiment of the present utility model;
fig. 4 is a schematic structural diagram of a control unit according to an embodiment of the present utility model;
fig. 5 is a schematic structural diagram of a switching unit according to an embodiment of the present utility model;
fig. 6 is a schematic structural diagram of an isolation unit according to an embodiment of the present utility model;
fig. 7 is a schematic diagram of a connection relationship between a control unit and a voltage stabilizing unit according to an embodiment of the present utility model.
Detailed Description
Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
In the description of embodiments of the present utility model, the technical terms "first," "second," and the like are used merely to distinguish between different objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more unless otherwise specifically defined.
Referring to fig. 1, fig. 1 is a schematic diagram of a first battery control circuit 1 according to an embodiment of the utility model. Fig. 1 shows a case where the first end 102 of the first circuit board 10 is provided with a first preset number of connectors 103, the second end 202 of the second circuit board 20 is provided with a second preset number of jacks 203, and the numbers of connectors 103 and jacks 203 are both 4.
The battery control circuit 1 is adapted to a battery housing 30 having an elongated surface 301, the battery control circuit 1 comprising: a first circuit board 10 having a control unit 101 and a second circuit board 20 having a switching unit 201;
the first circuit board 10 is disposed on the elongated surface 301 of the battery case 30; the second circuit board 20 is disposed on an end surface 302 of the battery case 30 adjacent to the elongated surface 301;
the first circuit board 10 includes a first end 102 adjacent to the second circuit board 20; the second circuit board 20 includes a second end 202 proximate the first circuit board 10;
the first end 102 is provided with a first preset number of connectors 103, and the second end 202 is provided with a corresponding number of jacks 203 to the connectors 103 (the embodiment in fig. 1 is illustrated with the first end 102 provided with connectors 103 and the second end 202 provided with jacks 203);
the plug connector 103 is configured to be plug-connected with the jack 203 to achieve connection of the control unit 101 with the adapter unit 201.
The aspect ratio of the long and narrow surface is greater than or equal to 2, and the aspect ratio may be an integer or a decimal, which is not particularly limited in the present utility model. The battery case may be a cylindrical case, and in particular, the battery case may be a cylindrical case or a prismatic case. The first circuit board can be mounted on the long and narrow surface of the battery shell through a connecting piece, and can also be mounted on the long and narrow surface of the battery shell through a welding mode; similarly, the second circuit board may be mounted on the end surface of the battery case by a connector, or may be mounted on the end surface of the battery case by soldering.
The specific numerical value of the first preset number can be determined according to the actual application scene of the battery control circuit; the first preset number may be 3, or may be 4 or 5, which is not particularly limited in the present utility model. The first end of the first circuit board is provided with a first preset number of jacks, and the second end of the second circuit board is provided with a first preset number of connectors; the first end of the first circuit board may be provided with a first preset number of connectors, and the second end of the second circuit board may be provided with a first preset number of jacks. Referring to fig. 2, fig. 2 is a schematic structural diagram of a second battery control circuit according to an embodiment of the utility model. Specifically, fig. 2 illustrates a case where the first end 102 of the first circuit board 10 is provided with a first preset number of jacks 104, and the second end 202 of the second circuit board 20 is provided with a second preset number of connectors 204.
Among these, connectors are the most basic mechanical electrical connection devices that enable the detachable connection between circuit devices, components or assemblies.
Therefore, in the battery control circuit provided by the embodiment of the utility model, the control unit positioned on the first circuit board is connected with the switching unit positioned on the second circuit board in a plugging manner through the plug connection of the plug connector and the jack; the battery control circuit can be connected with external equipment based on the switching unit. Compared with the connection mode of wire welding, the connection mode of grafting is more swift convenient, and the operation degree of difficulty is lower, has improved the efficiency of connection. In addition, the plug connection mode is adopted, errors are not easy to occur in the connection process, the accuracy of a connection result is guaranteed, and the reliability of a battery control circuit is further guaranteed.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a third battery control circuit according to an embodiment of the utility model.
In some alternative embodiments, the first circuit board 10 has a second predetermined number of first connection holes 105 distributed thereon; the first circuit board 10 is mounted to the elongated surface 301 of the battery case 30 through the first connection hole 105 and the first connection member fitted to the first connection hole 105.
The first connecting piece can be a metal connecting piece, such as a bolt or a rivet, or a non-metal connecting piece with similar shape, such as a connecting piece made of thermosetting plastic; the size and the shape of the opening of the first connecting hole are matched with those of the first connecting piece. The distribution of the first connection holes on the first circuit board may be uniform or non-uniform, which is not particularly limited in the present utility model.
In some alternative embodiments, a third predetermined number of second connection holes 205 are distributed on the second circuit board 20; the second circuit board 20 is mounted to the end surface 302 of the battery case 30 adjacent to the elongated surface 301 through the second connection hole 205 and the second connection fitting to the second connection hole 205.
The second connecting piece can be a metal connecting piece, such as a bolt or a rivet, or a non-metal connecting piece with similar shape, such as a connecting piece made of thermosetting plastic; the size and the shape of the opening of the second connecting hole are matched with those of the second connecting piece. The distribution of the second connection holes on the second circuit board may be uniform or non-uniform, which is not particularly limited in the present utility model.
There is no correlation between the number of first connection holes and the number of second connection holes, for example, in the embodiment provided in fig. 3, the number of first connection holes, i.e., the second preset number, is 3, and the number of second connection holes, i.e., the third preset number, is 2. The number of the first connection holes or the number of the second connection holes may also be other suitable values, and specifically, the second preset number or the third preset number may be adjusted according to the actual application scenario of the battery control circuit.
In some alternative embodiments, the plug 103 is soldered with the socket 203 or the plug 204 is soldered with the socket 104 after plugging; the plug 103 and the jack 203 or the plug 204 and the jack 104 are plugged to form a signal terminal, which is configured to enable signal transmission between the control unit 101 and the switching unit 201.
The welding materials can be welding wires or welding rods, the welding modes can be arc welding, resistance welding, gas welding and the like, and the welding materials and the welding modes can be selected according to specific practical application scenes.
Referring to fig. 4 and fig. 5, fig. 4 is a schematic structural diagram of a control unit according to an embodiment of the present utility model, and fig. 5 is a schematic structural diagram of a switching unit according to an embodiment of the present utility model.
In some alternative embodiments, the signal terminal includes: the first signal end, the second signal end, the third signal end and the fourth signal end; the first signal end is respectively connected with a signal transmitting interface TX/PA6 of the control unit and a signal receiving interface R17 of the switching unit; the second signal end is respectively connected with a signal receiving interface RX/PA7 of the control unit and a signal transmitting interface R18 of the switching unit; the third signal end is respectively connected with the power interface VDD of the control unit and the power interface R16 of the switching unit; the fourth signal end is respectively connected with the ground interface GND of the control unit and the ground interface RT1 of the switching unit.
The signal receiving interface of the switching unit can send the signal received by the switching unit to the external equipment, and the signal transmitting interface of the switching unit can transmit the signal transmitted by the external equipment to the control unit. The first signal end can transmit the transmitting signal of the control unit to the signal receiving interface of the switching unit; the second signal end can transmit the transmitting signal of the switching unit to the signal receiving interface of the control unit; the third signal end and the fourth signal end respectively connect the control unit with the power interface and the grounding interface of the switching unit. The first, second, third and fourth are only used for distinguishing the signal terminals, and are not related to the position relation of the signal terminals in the actual circuit. The control unit can be realized by a single chip microcomputer. The single chip microcomputer can realize charge and discharge control of the whole battery, and can detect and display whether the battery is fully charged or not and the charging progress. In addition, the communication with external equipment can be realized through the singlechip. Specifically, the singlechip can transmit charge and discharge control signals, a charge progress detection result and the like to the external equipment through the switching unit.
In some alternative embodiments, the first circuit board further has an isolation unit; one end of the isolation unit is configured to be connected with the control unit, and the other end of the isolation unit is configured to be connected with the switching unit; the isolation unit is configured to isolate an electrical signal between the control unit and the switching unit.
The isolation unit may be an optoelectronic coupler, a digital isolator or other isolation components capable of realizing circuit isolation.
Referring to fig. 6, fig. 6 is a schematic structural diagram of an isolation unit according to an embodiment of the utility model. In some alternative embodiments, the isolation unit includes a first optocoupler and a second optocoupler; one end of the first photoelectric coupler is configured to be connected with a signal transmitting interface TX/PA6 of the control unit, and the other end of the first photoelectric coupler is configured to be connected with a signal receiving interface R18 of the switching unit; one end of the second photoelectric coupler is configured to be connected with a signal receiving interface RX/PA7 of the control unit, and the other end of the second photoelectric coupler is configured to be connected with a signal transmitting interface R17 of the switching unit.
The photoelectric coupler is also called a photoelectric isolator, and transmits an electric signal by taking light as a medium. The model of the first photo coupler may be EL357N, PC817, or the like, and may be determined in combination with the actual application of the battery control circuit. Similarly, the second photocoupler may be EL357N, PC817, or the like. The model of the first photoelectric coupler and the model of the second photoelectric coupler can be the same or different.
Referring to fig. 7, fig. 7 is a schematic diagram illustrating a connection relationship between a control unit and a voltage stabilizing unit according to an embodiment of the present utility model.
In some alternative embodiments, the first circuit board further has a voltage stabilizing unit; one end OUT of the voltage stabilizing unit is configured to be connected with the VDD of the control unit, and the other end IN of the voltage stabilizing unit is configured to be connected with the battery cell; the voltage stabilizing unit is configured to stabilize the output voltage of the battery cell within a preset voltage value range.
The voltage stabilizing unit is a device for stabilizing output voltage, the voltage stabilizing unit can be realized by a voltage stabilizer, and the model of the voltage stabilizer can be selected according to the actual application scene of the battery control circuit. Specifically, the voltage stabilizing unit may be implemented by a step-down voltage stabilizer, for example, a CE6301a50P chip or a CE6260B30M5, or the like. The preset voltage value range can be 3.7, 3.8V or 3.7, 4.2V, which can be determined according to practical application. The cell refers to an electrochemical cell containing a positive electrode and a negative electrode, and is not generally used directly. The battery comprises a protection circuit and a shell, and can be directly used. Taking a lithium ion secondary rechargeable battery as an example, the lithium ion secondary rechargeable battery comprises a battery core and a protection circuit board.
In some alternative embodiments, the second circuit board further has a temperature detection unit; one end of the temperature detection unit is configured to be grounded, and the other end of the temperature detection unit is configured to be connected with external equipment; the temperature detection unit is configured to detect an ambient temperature of the battery cell.
The temperature detection unit can detect the temperature environment of the battery cell. The temperature detection unit may be implemented by a temperature sensor, and may specifically be a thermal resistance type sensor, for example, a negative temperature coefficient (Negative Temperature Coefficient, NTC) thermistor. The material of the NTC thermal sensor may be silicon carbide, tin selenide, tantalum nitride, etc. The external equipment can be an external whole machine main board or other circuit equipment with a data processing function, and the working parameters of the NTC heat-sensitive sensor are sent to the external whole machine main board so as to analyze the working parameters through the external equipment, further determine the ambient temperature of the battery cell and avoid the over-high ambient temperature of the battery cell.
The embodiment of the utility model also provides a battery pack, which comprises: a battery cell, a battery housing, and any one of the battery control circuits described in the first aspect above; wherein the battery housing has an elongated surface, the battery control circuit being adapted to the battery housing.
It should be understood that the battery pack corresponds to the above-described battery control circuit embodiment, and specific functions of the battery pack may be referred to the above description, and detailed descriptions thereof are omitted herein as appropriate to avoid redundancy.
The functional modules in the embodiments of the present utility model may be integrated together to form a single part, or each module may exist alone, or two or more modules may be integrated to form a single part.
The foregoing description is merely an optional implementation of the embodiment of the present utility model, but the scope of the embodiment of the present utility model is not limited thereto, and any person skilled in the art may easily think about changes or substitutions within the technical scope of the embodiment of the present utility model, and the changes or substitutions are covered by the scope of the embodiment of the present utility model.
Claims (10)
1. A battery control circuit adapted to a battery housing having an elongated surface; the battery control circuit includes: a first circuit board with a control unit and a second circuit board with a switching unit;
the first circuit board is arranged on the long and narrow surface of the battery shell; the second circuit board is arranged on the end surface of the battery shell, which is adjacent to the long and narrow surface;
the first circuit board includes a first end proximate to the second circuit board; the second circuit board includes a second end proximate the first circuit board;
one of the first end and the second end is provided with a first preset number of jacks, and the other of the first end and the second end is provided with connectors corresponding to the number of the jacks;
the plug connector is configured to be plug-connected with the jack so as to realize connection of the control unit and the switching unit.
2. The battery control circuit of claim 1, wherein a second predetermined number of first connection holes are distributed on the first circuit board;
the first circuit board is mounted on the long and narrow surface of the battery shell through the first connecting hole and the first connecting piece matched with the first connecting hole.
3. The battery control circuit of claim 1, wherein a third predetermined number of second connection holes are distributed on the second circuit board;
the second circuit board is mounted on the end surface of the battery case adjacent to the elongated surface through the second connection hole and a second connection member fitted to the second connection hole.
4. The battery control circuit of claim 1, wherein the plug is soldered after plugging with the receptacle;
the plug connector is plugged with the jack to form a signal end, and the signal end is configured to realize signal transmission between the control unit and the switching unit.
5. The battery control circuit of claim 4, wherein the signal terminal comprises: the first signal end, the second signal end, the third signal end and the fourth signal end;
the first signal end is respectively connected with a signal transmitting interface of the control unit and a signal receiving interface of the switching unit;
the second signal end is respectively connected with the signal receiving interface of the control unit and the signal transmitting interface of the switching unit;
the third signal end is respectively connected with the power interface of the control unit and the power interface of the switching unit;
the fourth signal end is respectively connected with the grounding interface of the control unit and the grounding interface of the switching unit.
6. The battery control circuit of claim 1, wherein the first circuit board further has an isolation unit;
one end of the isolation unit is configured to be connected with the control unit, and the other end of the isolation unit is configured to be connected with the switching unit;
the isolation unit is configured to isolate an electrical signal between the control unit and the switching unit.
7. The battery control circuit of claim 6, wherein the isolation unit comprises a first optocoupler and a second optocoupler;
one end of the first photoelectric coupler is configured to be connected with a signal transmitting interface of the control unit, and the other end of the first photoelectric coupler is configured to be connected with a signal receiving interface of the switching unit;
one end of the second photoelectric coupler is configured to be connected with the signal receiving interface of the control unit, and the other end of the second photoelectric coupler is configured to be connected with the signal transmitting interface of the switching unit.
8. The battery control circuit of claim 1, wherein the first circuit board further has a voltage stabilizing unit;
one end of the voltage stabilizing unit is configured to be connected with the control unit, and the other end of the voltage stabilizing unit is configured to be connected with the battery cell;
the voltage stabilizing unit is configured to stabilize the output voltage of the battery cell within a preset voltage value range.
9. The battery control circuit of claim 1, wherein the second circuit board further has a temperature detection unit;
one end of the temperature detection unit is configured to be grounded, and the other end of the temperature detection unit is configured to be connected with external equipment;
the temperature detection unit is configured to detect an ambient temperature of the battery cell.
10. A battery pack, the battery pack comprising: a battery cell, a battery housing and a battery control circuit as claimed in any one of claims 1 to 9; wherein the battery housing has an elongated surface, the battery control circuit being adapted to the battery housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321020972.8U CN219677594U (en) | 2023-04-28 | 2023-04-28 | Battery control circuit and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321020972.8U CN219677594U (en) | 2023-04-28 | 2023-04-28 | Battery control circuit and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219677594U true CN219677594U (en) | 2023-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321020972.8U Active CN219677594U (en) | 2023-04-28 | 2023-04-28 | Battery control circuit and battery pack |
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| Country | Link |
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| CN (1) | CN219677594U (en) |
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2023
- 2023-04-28 CN CN202321020972.8U patent/CN219677594U/en active Active
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