CN218866056U

CN218866056U - Auxiliary detection device and battery manufacturing equipment

Info

Publication number: CN218866056U
Application number: CN202222729777.4U
Authority: CN
Inventors: 吴凯; 李永杰
Original assignee: Contemporary Amperex Technology Co Ltd; Contemporary Amperex Intelligence Technology Shanghai Ltd
Current assignee: Contemporary Amperex Technology Co Ltd; Contemporary Amperex Intelligence Technology Shanghai Ltd
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2023-04-14
Anticipated expiration: 2032-10-17

Abstract

The application discloses supplementary detection device and battery manufacture equipment. The auxiliary detection device includes: a battery management unit and a detection circuit. The battery management unit is used for being connected with the battery detection equipment. The detection circuit is used for connecting the battery management unit and the battery to be detected. In the technical scheme of the embodiment of the application, the battery management unit is arranged to acquire the state information of the battery to be detected through the detection circuit, and the state information is sent to the battery detection equipment, so that the detection efficiency and the production efficiency of the battery are improved.

Description

Auxiliary detection device and battery manufacturing equipment

Technical Field

The present application relates to the field of battery manufacturing equipment, and in particular, to an auxiliary detection device and battery manufacturing equipment.

Background

Batteries are widely used in various electronic devices such as mobile phones, notebook computers, battery cars, electric automobiles, electric airplanes, electric ships, electric toy cars, electric toy ships, electric toy airplanes, electric tools, and the like. The battery can include cadmium nickel battery, hydrogen nickel battery, lithium ion battery, secondary alkaline zinc manganese battery, etc.

At present, in the process of manufacturing batteries, how to improve the production efficiency of batteries is one of the research focuses in the field.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present application provides an auxiliary detection device and a battery manufacturing apparatus, which can improve the manufacturing efficiency of a battery.

In a first aspect, the present application provides an auxiliary detection apparatus, comprising: a battery management unit and a detection circuit. The battery management unit is used for being connected with the battery detection equipment. The detection circuit is used for connecting the battery management unit and the battery to be detected.

In the technical scheme of the embodiment of the application, the battery management unit is arranged to acquire the state information of the battery to be detected through the detection circuit, and the state information is sent to the battery detection equipment, so that the detection efficiency and the production efficiency of the battery are improved.

In some embodiments, the detection circuitry comprises: a voltage detection circuit and a temperature detection circuit. The voltage detection circuit is used for connecting the battery management unit and the battery to be detected. The temperature detection circuit is used for connecting the battery management unit and the battery to be detected. The voltage detection circuit and the temperature detection circuit can acquire the voltage and temperature information of the battery, and realize the detection of the voltage and temperature of the battery.

In some embodiments, the battery management unit is connected to the voltage detection line and the temperature detection line respectively for acquiring the voltage information and the temperature information, and the battery management unit is connected to the detection device for transmitting the voltage information and the temperature information to the battery detection device. In the above configuration, the temperature information and the voltage information of the battery are transmitted to the battery detection device.

In some embodiments, the voltage detection line includes a first signal line and a second signal line connected to the battery management unit; the first signal line is used for being connected with the anode of the battery to be tested, and the second signal line is used for being connected with the cathode of the battery to be tested. The voltage of the battery can be directly obtained through the connection with the anode and the cathode of the battery, and the structure is simple and convenient to operate.

In some embodiments, the temperature detection circuit includes a third signal line connected to the battery management unit, the third signal line being configured to be connected to a temperature sensor of the battery under test. Through setting up the third signal line, be convenient for acquire the temperature information of battery.

In some embodiments, the auxiliary detection device further comprises a current detection circuit, wherein the current detection circuit comprises a fourth signal line connected to the battery management unit, and the fourth signal line is used for being connected with a current sensor of the battery to be detected. And the fourth signal line is arranged to acquire the current information of the battery.

In some embodiments, the auxiliary detection device further comprises a battery parameter detection circuit, and the battery parameter detection circuit comprises a direct current charging module, a first charging wire, a first relay, a second charging wire and a second relay. The direct current charging module comprises a positive electrode output end and a negative electrode input end. And two ends of the first charging wire are respectively connected with the anode of the battery to be tested and the anode output end. The first relay is connected in series with the first charging wire and used for controlling the on-off of the first charging wire. And two ends of the second charging wire are respectively connected with the negative electrode of the battery to be tested and the negative electrode output end. And the second relay is connected in series with the second charging wire and used for controlling the on-off of the second charging wire.

In the above embodiment, the battery can be charged by setting the battery parameter detection circuit, and the accuracy of battery voltage detection is ensured.

In some embodiments, the battery parameter detection circuit further comprises a fusing device connected in series on the first charging wire. Through setting up fusing device, the circuit takes place the fusing when the electric current surpasss the default, guarantees the security of battery parameter detection circuit.

In some embodiments, the auxiliary detection device further comprises a first control line, a second control line. A first control line: both ends are connected with the first relay and the battery management unit respectively. And two ends of the second control line are respectively connected with the second relay and the battery management unit. The battery management unit is used for sending signals to control the opening of the first relay and the second relay. Through setting up first control line and second control line, realize sending the control of signal in order to first relay and second relay through the battery management unit, improve detection efficiency.

In some embodiments, the battery parameter detection circuit further comprises a pre-charge module comprising a pre-charge line, a pre-charge resistor, and a third relay. A pre-charging wire: and the two ends of the first relay are connected in parallel. Pre-charging a resistor: connected in series to the pre-charge line. A third relay: connected in series to the pre-charge line. Through setting up the pre-charge module, carry out the pre-charge to the battery, improve the security.

In some embodiments, the battery parameter detection circuit further includes a fourth relay connected in series to the first charging line, and the fourth relay is disposed between the pre-charging module and the positive output terminal for controlling the dc charging module to be turned on. Through the arrangement of the fourth relay, the control of the direct current charging module by sending signals through the battery management unit is realized, and automatic charging is realized.

In some embodiments, the auxiliary detection device further comprises a locking plug, the locking plug is connected with the battery management unit in series, and the locking plug is used for being connected with the battery detection equipment. And a locking connector clip is arranged, so that the connection stability between the battery detection equipment and the battery management unit is improved.

In a second aspect, the present application provides a battery manufacturing apparatus including the auxiliary detection device in the above-described embodiments.

The foregoing description is only an overview of the technical solutions of the present application, and the present application can be implemented according to the content of the description in order to make the technical means of the present application more clearly understood, and the following detailed description of the present application is given in order to make the above and other objects, features, and advantages of the present application more clearly understandable.

Drawings

Features, advantages and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of an auxiliary detection device in an embodiment of the present application;

fig. 2 is a schematic structural diagram of an auxiliary detection device in another embodiment of the present application.

Detailed description of the reference numerals

1. An auxiliary detection device; 10. a battery management unit; 20. detecting a line; 201. a voltage detection circuit; 202. a temperature detection circuit; 203. a first signal line; 204. a second signal line; 205. a third signal line; 206. a current sensor; 207. a fourth signal line; 208. a current sensor; 30. a battery detection device; 40. a battery to be tested; 50. a battery parameter detection circuit; 501. a DC charging module; 502. a first charging wire; 503. a first relay; 504. a second charging wire; 505. a second relay; 506. a fusing device; 507. a first control line; 508. a second control line; 509. a pre-charging module; 510. a pre-charging line; 511. pre-charging a resistor; 512. a third relay; 513. a fourth relay; 60. locking plug connector.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are merely used to more clearly illustrate the technical solutions of the present application, and therefore are only examples, and the protection scope of the present application is not limited thereby.

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 application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions.

In the description of the embodiments of the present application, the technical terms "first", "second", and the like are used only for distinguishing different objects, and are not to be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary-secondary relationship of the technical features indicated. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In the description of the embodiments of the present application, the term "and/or" is only one kind of association relationship describing an associated object, and means that three relationships may exist, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two sets), "plural pieces" refers to two or more (including two pieces).

In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the directions or positional relationships indicated in the drawings, and are only for convenience of description of the embodiments of the present application and for simplicity of description, but do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; mechanical connection or electrical connection is also possible; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. Specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

From the development of market situation, batteries are applied to more and more electronic products and electric devices. Therefore, the market places higher demands on the production efficiency of the battery. Before the battery is shipped, it is usually necessary to detect its internal state and connection status, for example, to read state information such as voltage, temperature, or current of the battery. The above-described inspection process is usually performed after the battery is assembled with the battery management unit. The inventors have studied and found that assembling and disassembling the battery management unit to a defective product lowers the production efficiency of the battery.

In view of the above, in order to improve the production efficiency of the battery, the inventors have studied to design an auxiliary detection device including a battery management unit and a detection line. The battery management unit is used for being connected with the battery detection device. The detection circuit is used for connecting the battery management unit and the battery to be detected.

Through setting up the battery management unit in this application embodiment, acquire the state information of the battery that awaits measuring through the detection circuitry to with state information transmission to battery check out test set, improved the detection efficiency and the production efficiency of battery. Moreover, for some batteries without a battery management unit, the battery auxiliary detection device provided by the application can be used to acquire the state information of the batteries. The application provides a battery auxiliary device, can improve the efficiency of acquireing battery state information.

For convenience of description, the following embodiments are described with reference to an auxiliary detecting device according to an embodiment of the present application.

Referring to fig. 1 to 2, fig. 1 is a schematic structural diagram of an auxiliary detection device 1 according to an embodiment of the present application; fig. 2 is a schematic structural diagram of an auxiliary detecting device 1 in another embodiment of the present application.

As shown in the drawings, the auxiliary detecting device 1 in the embodiment of the present application includes: a battery management unit 10 and a detection line 20. The battery management unit 10 is used to connect with the battery detection device 30. The test line 20 is used to connect the battery management unit 10 and the battery under test 40.

The battery management unit 10 is a device that can receive and transmit signals. For example, the battery management unit 10 can read a voltage signal in a voltage sensor of the battery under test through a signal line, and acquire a temperature signal in a temperature sensor of the battery under test through a signal line. Also, the battery management unit 10 can also transmit the acquired state information to an external detection device. The detection device may be a computer, a mobile communication device, etc. Further, the battery management unit 10 can compare the stored preset information with the acquired real-time status information of the battery to be tested, and if the status information exceeds or is lower than the preset value, the battery management unit 10 can send a signal to the detection device.

In the technical scheme of the embodiment of the application, the battery management unit 10 is arranged to acquire the state information of the battery 40 to be detected through the detection circuit 20 and send the state information to the battery detection equipment 30, so that the detection efficiency and the production efficiency of the battery are improved.

In some embodiments of the present application, the detection circuit 20 includes: a voltage detection line 201 and a temperature detection line 202. The voltage detection line 201 is used to connect the battery management unit 10 and the battery 40 to be tested. The temperature detection line 202 is used to connect the battery management unit 10 and the battery 40 to be tested. The voltage detection circuit 201 and the temperature detection circuit 202 are respectively used for acquiring voltage and temperature information of the battery 40 to be detected, so as to detect the voltage and the temperature of the battery.

In some embodiments of the present application, the battery management unit 10 is connected to the voltage detection line 201 and the temperature detection line 202 for acquiring voltage information and temperature information, respectively, and the battery management unit 10 is connected to the detection device for transmitting the voltage information and the temperature information to the battery detection device 30. In the above structure, the temperature information and the voltage information of the battery are transmitted to the battery detection device 30, so as to detect the state of the battery 40 to be detected.

In some embodiments of the present application, the voltage detection line 201 includes a first signal line 203 and a second signal line 204 connected to the battery management unit 10; the first signal line 203 is used for connecting with the anode of the battery 40 to be tested, and the second signal line 204 is used for connecting with the cathode of the battery 40 to be tested. The voltage information of the battery 40 to be measured can be directly acquired by connecting the positive electrode and the negative electrode of the battery 40 to be measured. Alternatively, the first signal line 203 and the second signal line 204 may be connected to both ends of a battery voltage sensor, respectively, or may acquire voltage information of the battery 40 to be measured. The structure is simple and the operation is convenient.

In some embodiments of the present application, the temperature detection circuit 202 includes a third signal line 205 connected to the battery management unit 10, and the third signal line 205 is used for connecting with a temperature sensor (not shown) of the battery 40 to be tested. In some embodiments, the third signal line 205 has two terminals, and the two terminals can be connected to two ends of the temperature sensor, respectively.

In the above structure, the third signal line 205 is provided, so that the temperature information of the battery 40 to be measured can be conveniently acquired. With continued reference to fig. 1, in some embodiments of the present application, the auxiliary detection device 1 further includes a current detection circuit 20, the current detection circuit 20 includes a fourth signal line 207 connected to the battery unit, and the fourth signal line 207 is used for connecting with a current sensor 208 of the battery. The fourth signal line 207 is provided to acquire current information of the battery. In the embodiment of the application, the current information and the temperature information of the battery to be tested are combined and analyzed, so that the temperature change conditions under different currents can be obtained, and the high-temperature stability of the battery to be tested 40 is detected.

In some embodiments of the present application, please refer to fig. 2 in combination, the auxiliary detection device 1 further includes a battery parameter detection circuit 50, and the battery parameter detection circuit 50 includes a dc charging module 501, a first charging line 502, a first relay 503, a second charging line 504, and a second relay 505.

Specifically, the dc charging module 501 includes a positive output terminal and a negative input terminal. Two ends of the first charging line 502 are respectively connected to the positive electrode of the battery 40 to be tested and the positive electrode output end of the dc charging module 501. The first relay 503 is connected in series to the first charging line 502, and is used for controlling the on/off of the first charging line 502. Two ends of the second charging line 504 are respectively connected to the negative electrode of the battery 40 to be tested and the negative electrode output end of the dc charging module 501. A second relay 505 is connected in series to the second charging line 504 for controlling the on/off of the second charging line 504.

In the above embodiment, the battery parameter detection circuit 50 is provided, so that the battery 40 to be detected can be charged, and the accuracy of the battery voltage detection result is ensured.

In some embodiments of the present application, the battery parameter detection circuit 50 further comprises a fuse device 506 connected in series to the first charging wire 502. By arranging the fusing device 506, the fusing device 506 fuses to cut off the current of the first charging wire 502 when the current of the first charging wire 502 exceeds a preset value, and the safety of the battery parameter detection circuit 50 is ensured.

In some embodiments of the present application, the auxiliary detection device 1 further comprises a first control line 507 and a second control line 508. Both ends of the first control line 507 are connected to the first relay 503 and the battery management unit 10, respectively. Both ends of the second control line 508 are connected to the second relay 505 and the battery management unit 10, respectively. The battery management unit 10 is configured to send a signal to control the on/off of the first relay 503 and the second relay 505. The control signal may be a variable frequency signal.

In the embodiment of the present application, by providing the first control line 507 and the second control line 508, the battery management unit 10 sends signals to control the first relay 503 and the second relay 505, so that the detection efficiency is improved.

In some embodiments of the present application, the battery parameter detection circuit 50 further comprises a pre-charge module 509, the pre-charge module 509 comprising a pre-charge line 510, a pre-charge resistor 511, and a third relay 512. A pre-charge line 510 is connected in parallel across the first relay 503. The pre-charge resistor 511 is connected in series to the pre-charge line 510. A third relay 512 is connected in series to the pre-charge line 510. Through setting up pre-charge module 509, carry out the pre-charge to the battery, reduce the peak voltage that charges to the battery 40 that awaits measuring, prevent that the battery from damaging, improve the security that detects.

In some embodiments of the present application, the battery parameter detecting circuit 50 further includes a fourth relay 513 connected in series to the upper first charging line 502, and the fourth relay 513 is disposed between the pre-charging module 509 and the positive output terminal of the dc charging module 501, and the fourth relay 513 is used to control the on/off of the dc charging module 501, so as to connect the first charging line 502.

A fourth relay 513 is provided to intentionally control the dc charging module 501 by sending a signal through the battery management unit 10. The technical scheme can realize automatic charging of the battery 40 to be detected, and can effectively improve the detection efficiency.

In some embodiments of the present application, the auxiliary detection apparatus 1 further includes a locking plug 60, the locking plug 60 is connected in series with the battery management unit 10, and the locking plug 60 is used for connecting with the battery detection device 30. The provision of the locking plug 60 will improve the stability of the connection between the battery detection device 30 and the battery management unit 10.

Illustratively, the resulting connector 60 may include a connector and a locking member, the connector detachably connects the auxiliary detection device 1 and the battery management unit 10, and the locking member is connected to the connector to fixedly connect the connector, thereby improving the connection stability of the connector.

An embodiment of the present application provides an auxiliary detection device 1, including: a battery management unit 10 and a detection line 20. The battery management unit 10 is used to connect with the battery test equipment 30. The test line 20 is used to connect the battery management unit 10 and the battery under test 40. The detection circuit 20 includes: a voltage detection line 201 and a temperature detection line 202. The voltage detection line 201 is used to connect the battery management unit 10 and the battery 40 to be tested. The temperature detection line 202 is used to connect the battery management unit 10 and the battery 40 to be tested. The voltage detection circuit 201 and the temperature detection circuit 202 are respectively used for acquiring voltage and temperature information of the battery 40 to be detected, and detecting the voltage and the temperature of the battery. The voltage detection line 201 includes a first signal line 203 and a second signal line 204 connected to the battery management unit 10; the first signal line 203 is used for connecting with the anode of the battery 40 to be tested, and the second signal line 204 is used for connecting with the cathode of the battery 40 to be tested. The voltage information of the battery 40 to be measured can be directly acquired by connecting the positive electrode and the negative electrode of the battery 40 to be measured. Alternatively, the first signal line 203 and the second signal line 204 may be connected to both ends of a battery voltage sensor, respectively, or may acquire voltage information of the battery 40 to be measured.

The temperature detection line 202 includes a third signal line 205 connected to the battery management unit 10, and the third signal line 205 is used for connecting with a temperature sensor (not shown) of the battery 40 to be tested. In some embodiments, the third signal line 205 has two terminals, and the two terminals can be connected to two ends of the temperature sensor, respectively.

The auxiliary detection device 1 further comprises a battery parameter detection circuit 50, wherein the battery parameter detection circuit 50 comprises a dc charging module 501, a first charging line 502, a first relay 503, a second charging line 504 and a second relay 505. The dc charging module 501 includes a positive output terminal and a negative input terminal. Two ends of the first charging wire 502 are respectively connected to the positive electrode of the battery 40 to be tested and the positive electrode output end of the dc charging module 501. The first relay 503 is connected in series to the first charging line 502, and is used for controlling the on/off of the first charging line 502. Two ends of the second charging line 504 are respectively connected to the negative electrode of the battery 40 to be tested and the negative electrode output end of the dc charging module 501. A second relay 505 is connected in series to the second charging line 504 for controlling the on/off of the second charging line 504.

The battery parameter sensing circuit 50 also includes a fuse device 506 connected in series to the first charging wire 502. The auxiliary detection device 1 further comprises a first control line 507 and a second control line 508. Both ends of the first control line 507 are connected to the first relay 503 and the battery management unit 10, respectively. Both ends of the second control line 508 are connected to the second relay 505 and the battery management unit 10, respectively. The battery management unit 10 is configured to send signals to control the first relay 503 and the second relay 505 to be turned on. The control signal may be a variable frequency signal.

The battery parameter detection circuit 50 further includes a pre-charge module 509, the pre-charge module 509 including a pre-charge line 510, a pre-charge resistor 511, and a third relay 512. A pre-charge line 510 is connected in parallel across the first relay 503. The pre-charge resistor 511 is connected in series to the pre-charge line 510. A third relay 512 is connected in series to the pre-charge line 510. The battery parameter detecting circuit 50 further includes a fourth relay 513 connected in series to the upper first charging line 502, and the fourth relay 513 is disposed between the positive output terminals of the pre-charging module 509 and the dc charging module 501, and the fourth relay 513 is used for controlling the opening of the dc charging module 501 to realize the connection of the first charging line 502. The auxiliary detection device 1 further comprises a locking plug 60, the locking plug 60 being connected in series with the battery management unit 10, the locking plug 60 being intended to be connected to the battery detection equipment 30.

The method for acquiring the state information of the battery 40 to be tested by using the auxiliary detection device 1 provided by the embodiment of the application is as follows.

1. Voltage information of the battery 40 to be measured is acquired.

The battery management unit 10 is connected to the positive electrode and the negative electrode of the battery 40 through the first signal line 203 and the second signal line 204, and acquires voltage information of the battery 40 through a voltage sensor.

2. Temperature information of the battery 40 to be measured is acquired.

The battery management unit 10 is connected to the temperature sensor of the battery under test 40 via a third signal line 205, and acquires temperature information from the temperature sensor of the battery under test 40.

3. The current information of the battery 40 to be measured is acquired.

The battery management unit 10 is connected to the current sensor of the battery under test 40 via a fourth signal line 207, and acquires current information from the current sensor of the battery under test 40.

4. And acquiring the direct current resistance of the battery.

The battery management unit 10 sends signals to control the first relay 503 and the second relay 505 to be closed;

under the condition of room temperature, the direct current power supply is kept at 400A (if 3C is more than 400A, 400A is recommended) and is discharged for 12s;

the battery management unit 10 obtains the voltage drop Δ U of each battery cell to be tested at the end of 0-10s and the maximum voltage drop Δ Umax and the minimum voltage drop Δ umin in the battery cell to be tested through the first signal line 203 and the second signal line 204;

the battery management unit 10 sends a signal to control the first relay 503 to close, so as to realize the connection of the charging circuit, charge the battery for 48s with 100A current and supplement the amount of the discharged power loss.

5. And acquiring the battery capacity of the battery to be tested.

The upper limit of the cell protection voltage is 4.25V, the lower limit of the cell protection voltage is 2.5V, the upper limit of the cell protection voltage is 816V, and the lower limit of the cell protection voltage is 538V.

The battery management unit 10 sends signals to control the first relay 503 and the second relay 505 to close;

charging by 1/3C A current until any single battery in the batteries to be tested reaches the upper limit of the protection voltage, stopping charging, and standing for 5 minutes;

charging with 0.05 CA until any battery monomer reaches the upper limit of the protection voltage, stopping charging, and standing for 60 minutes;

discharging at 1/3 CA until any battery monomer reaches the lower limit of the protection voltage, stopping discharging, and standing for 60 minutes;

charging for 72 minutes at 1/3C A, and standing for 5 minutes;

the battery detection device 30 is connected, the auxiliary detection device 1 sends resistance and voltage information to the battery detection device 30, and the battery capacity of the battery is calculated and obtained through the voltage information and the current information of the battery.

The present application also provides a battery manufacturing apparatus including the auxiliary detection device 1 in any of the above embodiments. The battery manufacturing apparatus in the embodiment of the present application, including the auxiliary detection device 1, can also improve the detection efficiency of the battery and improve the production efficiency of the battery.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present disclosure, and the present disclosure should be construed as being covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein, but rather to cover all embodiments falling within the scope of the appended claims.

Claims

1. An auxiliary detection device, comprising:

the battery management unit is used for being connected with the battery detection equipment; and

and the detection circuit is used for connecting the battery management unit and the battery to be detected.

2. The auxiliary detection device of claim 1, wherein the detection circuit comprises:

the voltage detection circuit is used for connecting the battery management unit and a battery to be detected; and

and the temperature detection circuit is used for connecting the battery management unit and the battery to be detected.

3. The auxiliary detection device according to claim 2, wherein the battery management unit is connected to the voltage detection line and the temperature detection line for acquiring the voltage information and the temperature information, respectively, and the battery management unit is connected to a detection device for transmitting the voltage information and the temperature information to the battery detection device.

4. The auxiliary detection device according to claim 2, wherein the voltage detection line includes a first signal line and a second signal line connected to the battery management unit;

the first signal line is used for being connected with the anode of the battery to be tested, and the second signal line is used for being connected with the cathode of the battery to be tested.

5. The auxiliary detection device as claimed in claim 3, wherein the temperature detection circuit comprises a third signal line connected to the battery management unit, the third signal line being configured to be connected to a temperature sensor of the battery under test.

6. The auxiliary detection device as claimed in claim 2, further comprising a current detection circuit, wherein the current detection circuit comprises a fourth signal line connected to the battery management unit, and the fourth signal line is used for connecting with a current sensor of the battery to be detected.

7. The auxiliary detection device according to any one of claims 1 to 6, further comprising a battery parameter detection circuit, the battery parameter detection circuit comprising:

a direct current charging module: comprises a positive electrode output end and a negative electrode input end;

two ends of the first charging wire are respectively connected with the anode of the battery to be tested and the anode output end;

the first relay is connected in series with the first charging wire and used for controlling the on-off of the first charging wire;

two ends of the second charging wire are respectively connected with the negative electrode of the battery to be tested and the negative electrode output end;

and the second relay is connected in series with the second charging wire and used for controlling the on-off of the second charging wire.

8. The auxiliary detection device of claim 7, wherein the battery parameter detection circuit further comprises a fuse device connected in series to the first charging wire.

9. The auxiliary detection device of claim 7, further comprising:

a first control line: two ends of the first relay are respectively connected with the first relay and the battery management unit;

a second control line having both ends connected to the second relay and the battery management unit, respectively,

the battery management unit is used for sending signals to control the first relay and the second relay to be turned on.

10. The auxiliary detection device of claim 7, wherein the battery parameter detection circuit further comprises a pre-charge module, the pre-charge module comprising:

a pre-charging wire: the first relay is connected in parallel with two ends of the first relay;

pre-charging a resistor: the pre-charging wire is connected in series;

a third relay: connected in series to the pre-charge line.

11. The auxiliary detection device as claimed in claim 10, wherein the battery parameter detection circuit further comprises a fourth relay connected in series to the first charging line, and the fourth relay is disposed between the pre-charging module and the positive output terminal for controlling the dc charging module to be turned on.

12. The auxiliary detection device of any one of claims 1-6, further comprising a locking plug, the locking plug being connected in series with the battery management unit, the locking plug being configured to connect to the battery detection equipment.

13. A battery manufacturing apparatus characterized in that it comprises an auxiliary detection device according to any one of claims 1 to 12.