CN220210729U - Program-controlled power supply output module for testing new energy battery - Google Patents
Program-controlled power supply output module for testing new energy battery Download PDFInfo
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- CN220210729U CN220210729U CN202321195641.8U CN202321195641U CN220210729U CN 220210729 U CN220210729 U CN 220210729U CN 202321195641 U CN202321195641 U CN 202321195641U CN 220210729 U CN220210729 U CN 220210729U
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Abstract
The specification provides a programmable power output module for new energy battery test, including: a housing; an integrated circuit fixed inside the housing; the surface of the shell is provided with an input interface for connecting a programmable power supply; a plurality of output interfaces on the surface of the housing; each output interface is used as a programmable power supply output channel; the input interface and the output interface are respectively and electrically connected with the integrated circuit board; the system also comprises a CC signal test interface and/or an NTC test interface; the CC signal test interface is arranged on the surface of the shell and is electrically connected with the integrated circuit board; the CC signal test interface is used for being electrically connected with a CC signal end of the battery pack; the NTC test interface is arranged on the surface of the shell and is electrically connected with the integrated circuit board; the NTC test interface is used for being electrically connected with an NTC signal end of the battery pack. The scheme reduces external wiring, makes manual wiring relatively simpler, avoids frequent wire replacement, fully utilizes the space on the integrated circuit board, reduces peripheral interference and improves reliability.
Description
Technical Field
The application relates to the technical field of new energy battery testing, in particular to a programmable power supply output module for testing a new energy battery.
Background
In the new energy battery pack testing process, multiple power supplies are usually required, especially in the case of automatic testing.
The prior art programmable power supply has only one channel, so that components (such as a relay and the like) and a large number of wires are additionally added to expand the channel in the testing process, the wires are complex, and errors are easy to occur.
Disclosure of Invention
The embodiment of the application aims to provide a programmable power supply output module for testing a new energy battery, which is used for solving the problems of complex wiring and easy error in the prior art.
The specification provides a programmable power output module for new energy battery test, including: a housing; the integrated circuit board is fixedly arranged in the shell; the input interface is arranged on the surface of the shell; the input interface is used for connecting a programmable power supply; the plurality of output interfaces are arranged on the surface of the shell; each output interface is used as a programmable power supply output channel; the input interface and the output interface are respectively and electrically connected with the integrated circuit board; the programmable power supply output module further comprises a CC signal test interface and/or an NTC test interface; the CC signal test interface is arranged on the surface of the shell and is electrically connected with the integrated circuit board; the CC signal test interface is used for being electrically connected with a CC signal end of the battery pack so as to realize CC signal test; the NTC test interface is arranged on the surface of the shell and is electrically connected with the integrated circuit board; the NTC test interface is used for being electrically connected with an NTC signal end of the battery pack so as to realize NTC signal test.
In some embodiments, a controllable switch is connected in series in the line between at least one of the plurality of output interfaces and the input interface.
In some embodiments, a resistor is connected in series between a negative terminal in the input interface and the CC signal test interface.
In some embodiments, a first resistor module is connected in series between a negative terminal in the input interface and the CC signal test interface, the first resistor module includes a plurality of parallel branches, and each parallel branch is provided with a resistor and a controllable switch connected in series; and two ends of the parallel branches are used as wiring terminals of the first resistor module.
In some embodiments, the programmable power output module includes at least two CC signal test interfaces.
In some embodiments, the NTC test interface includes two terminals with a resistor in series between the two terminals.
In some embodiments, a second resistor module is connected in series between two terminals of the NTC test interface, where the second resistor module includes a plurality of parallel branches, and each parallel branch is respectively connected in series with a resistor and a controllable switch; the resistances of the resistors on the different branches are different.
In some embodiments, the programmable power output module further comprises a single negative electrode interface electrically connected with a programmable power negative electrode connection end in the input interface; the single negative electrode interface is used for outputting a negative electrode signal of the programmable power supply.
In some embodiments, the programmable power output module includes at least two NTC test interfaces.
In some embodiments, a controllable switch is connected in series between the input interface and at least one of: the input interface, the output interface, the CC signal test interface and the NTC test interface; the programmable power supply output module further comprises: the controller is arranged on the integrated circuit board and used for controlling the opening and closing states of the controllable switch; the communication interface is arranged on the surface of the shell; the communication interface is in communication connection with the controller and is also used for being in communication connection with the upper computer so as to transmit control signals sent by the upper computer to the controllable switch.
According to the program-controlled power supply output module for testing the new energy battery, provided by the specification, the connection relation among devices is realized through the printed circuit on the integrated circuit board, so that external wiring is reduced, and manual wiring is relatively simple and is not easy to make mistakes; the switching of the relays is controlled to realize that a plurality of channels are sequentially connected with a programmable power supply, so that frequent line replacement is avoided; the integrated circuit board and the interfaces are integrated into the shell, so that wiring and devices can be well protected, and the requirements of reliably realizing battery pack testing under various working conditions are met; the programmable power output module not only comprises a power expansion channel, but also comprises a CC signal test interface and an NTC test interface, has higher integration level and fully utilizes the space on the integrated circuit board; the relay, the resistor and the like used for testing are arranged on the integrated circuit board, only an interface used for testing is reserved on the shell, and the manual wiring is replaced by machine bonding wires among components, so that the peripheral interference is reduced, and the reliability is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 shows a schematic structural diagram of a new energy battery test cabinet provided in an embodiment of the present disclosure;
fig. 2 shows a schematic perspective view of a programmable power output module provided in the present specification;
fig. 3 shows a schematic diagram of electrical connections on an integrated circuit board.
Detailed Description
In order to make the technical solutions in the present application better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, based on the embodiments herein, which would be apparent to one of ordinary skill in the art without undue burden are intended to be within the scope of the present application.
The specification provides a new energy battery test cabinet for battery pack testing. The new energy battery testing cabinet comprises a cabinet body 101, an industrial personal computer 102, a code scanning gun 103, a testing instrument and a testing module. For example, the new energy battery test cabinet may be as shown in fig. 1.
The cabinet 101 has a plurality of partitions arranged up and down. The industrial personal computer 102 is arranged on a layer of partition board. The industrial personal computer 102 is used for running a test program module, and in the process of running the test program module, the industrial personal computer sends a control instruction to the test module to acquire test data in the test instrument.
The code scanning gun 103 is arranged outside the cabinet 101. The code scanning gun 103 is used for acquiring a first identification code set on the tested object.
The test instrument and the test module can be respectively arranged on one layer of partition board or on the same layer of partition board. For example, the layers shown at 106 in FIG. 1 are used to set up test instruments and test modules.
At least one interface of the test module is electrically connected with the tested object, and at least one other interface is electrically connected with the test instrument. The test module is used for changing the electrical connection relation between the interface of the test instrument and the interface of the tested object according to the control instruction sent by the industrial personal computer 102.
The industrial personal computer 102 is also in communication connection with the test instrument, so that the industrial personal computer 102 can read the test data in the test instrument.
In fig. 1, 104 denotes a display device, 105 is a small drawer in which an input device such as a keyboard, a mouse, or the like is placed, and 106 denotes an area for setting a test instrument and a test module. The side edge of each of the plurality of areas shown at 106 may be sealed by a cover plate 107, and an observation window for observing data on the test instrument may be formed in the cover plate 107, and the observation window is sealed by a transparent plate body (for example, an acrylic plate). And 108, a plug-in box type power module of the new energy battery test cabinet, wherein the power module converts commercial power into power used by various instruments and modules in the new energy battery test cabinet. 109 is a UPS power source for use as a backup power source in the event of a mains outage. And 110 is an indicator light of the test result or the test status. 111 denotes a vent hole above the cabinet. 112 represents a custom second display device. 113 denotes casters of the cabinet.
The specification provides a programmable power output module which can be placed in the new energy battery cabinet for use, and the programmable power output module is used for testing the new energy battery. The power output module comprises a shell A, an integrated circuit board B, an input interface C and a plurality of output interfaces D. The three-dimensional structure of the programmable power output module can be shown in fig. 2.
The housing a may be box-shaped, may be open on one side (e.g., open above), or may be in the form of a full enclosure. Under the condition of the full surrounding form, the cover plate above is disassembled, so that the inside of the programmable power output module can be inspected and maintained.
The integrated circuit board B is fixedly arranged inside the shell A. Components may be provided on the integrated circuit board B and many connections may be provided. For example, a plurality of controllable switches (e.g., relays, triodes, etc.), resistors, etc. may be disposed on the integrated circuit board B, and many connection lines may be formed between these components and the input interface C and the output interface D. The components are arranged on the integrated circuit board C, and the printed conductors can be used for realizing the electric connection relationship between the components and the input interface C and the output interface D. In addition, the integrated circuit board C is fixedly arranged in the shell A, so that the components and the wiring relation can be effectively protected from being damaged, and the stability of the programmable power output module is improved.
The input interface C is arranged on the surface of the shell A and is used for being connected with a programmable power supply.
The output interfaces D are arranged on the surface of the shell A, and each output interface D is used as an output channel of the programmable power supply, namely, the output signal of each output interface can be equal to the output signal of the programmable power supply. The programmable power source output module outputs the programmable power source with more power channels compared with the self-output power source of the programmable power source.
On the basis of realizing the expansion of the programmable power supply channel through the integrated circuit board B, the space utilization rate on the integrated circuit board B is not high. To increase the space utilization on the integrated circuit board B, the circuitry required for other test items of the battery pack test may be provided on the integrated circuit board B. Thus, the programmable power output module may include at least one of the CC signal test interface E, NTC test interface F.
The CC signal test interface E is arranged on the surface of the shell A and is electrically connected with the integrated circuit board B. The CC signal test interface is used for being electrically connected with a CC signal end of the battery pack so as to realize CC signal test.
The NTC test interface F is arranged on the surface of the shell A and is electrically connected with the integrated circuit board B. The NTC test interface is used for being electrically connected with an NTC signal end of the battery pack so as to realize NTC signal test.
Fig. 3 shows a schematic diagram of electrical connections on an integrated circuit board. Wherein X represents the physical structure of the input interface and is used for connecting a programmable power supply. The input interface X comprises two connecting ends X1 and X2, wherein X1 is used for connecting the positive electrode of the programmable power supply, and X2 is used for connecting the negative electrode of the programmable power supply; y represents the entity structure of the output interface, and comprises a plurality of programmable power supply expansion channels such as Y1, Y2 … … Y6 and the like, wherein each channel comprises two ports, one port is used for being electrically connected with the positive pole of the programmable power supply, and the other port is used for being electrically connected with the negative pole of the programmable power supply. As can be seen from fig. 3, the port of the extension channel may be simply electrically connected to the programmable power supply, without any resistor connected in series in between, etc. Of course, if necessary, a resistor and other devices may be connected in series between the port of the expansion channel and the programmable power supply, so as to change the output module of the programmable power supply to output at least two different power supplies.
In some cases it may be desirable for a certain port of the test module to be connected to the programmable power supply via a plurality of branches, respectively, and whether each branch is conductive or not is controllable, then a controllable switch is connected in series in the line between at least one of the plurality of output interfaces D of the programmable power supply output module and the input interface C.
A resistor is connected in series between the negative terminal of the input interface C and the CC signal test interface E. A resistor may be connected in series between the negative terminal of input interface C and CC signal test interface E. However, in general, a constant-value resistor cannot realize the function of testing the CC signal, for this purpose, a variable resistor may be connected in series between the negative terminal in the input interface C and the CC signal testing interface E, or a first resistor module may be connected in series, where the first resistor module includes multiple parallel branches, each parallel branch is provided with a resistor and an upper controllable switch connected in series, and two ends of the multiple parallel branches after being connected in parallel are used as terminals of the first resistor module. After the resistor is connected in series between the negative terminal of the input interface C and the CC signal test interface, the voltage of the C signal test interface can be increased to reach the voltage value required by CC signal matching.
For example, in fig. 3, a resistor module having two branches is connected in series between the negative terminal of the input interface C and the CC signal test interface E, a resistor and a controllable switch of 220Ω are connected in series to the first branch, and a resistor and a controllable switch of 880 Ω are connected in series to the second branch. The control of the resistance between the negative terminal in the input interface C and the CC signal test interface E, in particular the resistance of the connection 220 Ω or the connection 880 Ω, can be achieved by controlling the opening and closing of the controllable switches on the series branch.
In some embodiments, the programmable power output module includes at least two CC signal test interfaces. The resistances of resistors connected in series between the different CC signal test interfaces and the input interface are different. For example, in fig. 3, a CC2 signal test interface is further included, and a resistor of 1kΩ is connected in series between the CC2 signal test interface and the input interface. Of course, a controllable switch may be connected in series between the CC2 signal test interface and the input interface to control whether the CC2 signal test interface is adopted to implement the test function at a certain time.
The NTC test interface F includes two terminals with a resistor in series between them. In some cases it may be desirable to be able to control when the NTC test is started, for which purpose a controllable switch may also be connected in series between the two terminals of the NTC test interface F.
The NTC test, namely the test of the temperature response capability of the battery pack, can simulate that the battery pack is in a certain temperature state by connecting resistors in series at two NTC signal ends of the battery pack. Typically, the temperature-related test of the battery pack includes a test under a low temperature condition and a test under a high temperature condition. For this purpose, on the integrated circuit board B, a second resistor module is connected in series between two terminals of the NTC test interface F, where the second resistor module may include a plurality of parallel branches, and each parallel branch is respectively connected in series with a resistor and a controllable switch; the resistances of the resistors on the different branches are different. As shown in fig. 3, the second resistor module connected in series between the two terminals of the NTC test interface F includes two parallel branches, where the resistor connected in series on the first branch is 3kΩ, the resistor connected in series on the second branch is 10kΩ, and the resistances of the resistors connected in series on the two branches are different. One of the branches may be used to measure the battery pack at high temperature and the other branch may be used to measure the battery pack at low temperature.
According to the program-controlled power supply output module for testing the new energy battery, provided by the specification, the connection relation among devices is realized through the printed circuit on the integrated circuit board, so that external wiring is reduced, and manual wiring is relatively simple and is not easy to make mistakes; the switching of the relays is controlled to realize that a plurality of channels are sequentially connected with a programmable power supply, so that frequent line replacement is avoided; the integrated circuit board and the interfaces are integrated into the shell, so that wiring and devices can be well protected, and the requirements of reliably realizing battery pack testing under various working conditions are met; the programmable power output module not only comprises a power expansion channel, but also comprises a CC signal test interface and an NTC test interface, has higher integration level and fully utilizes the space on the integrated circuit board; the relay, the resistor and the like used for testing are arranged on the integrated circuit board, only an interface used for testing is reserved on the shell, and the manual wiring is replaced by machine bonding wires among components, so that the peripheral interference is reduced, and the reliability is improved.
In some embodiments, the programmable power output module comprises at least two NTC test interfaces as described above.
In some embodiments, as shown in fig. 3, the programmable power output module further includes a single negative interface G electrically connected to the programmable power negative connection terminal in the input interface. The single negative electrode interface is used for outputting a negative electrode signal of the programmable power supply.
Under the condition that the integrated circuit board B is provided with a controllable switch, the programmable power supply output module also comprises a controller and a communication interface. The controller is arranged on the integrated circuit board B and is used for controlling the opening and closing states of the controllable switch. The communication interface is arranged on the surface of the shell, is in communication connection with the controller, and is also in communication connection with the upper computer so as to transmit control signals sent by the upper computer to the controllable switch.
Through setting up controller and communication module for programmable power output module can realize the automatic switch-over of each power output passageway through the host computer, and cut in CC signal test interface E, NTC test interface F, single negative pole interface G etc. and test at appropriate opportunity.
In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for a hardware+program class embodiment, the description is relatively simple, as it is substantially similar to the method embodiment, as relevant see the partial description of the method embodiment.
The foregoing describes specific embodiments of the present disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims can be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.
The foregoing is merely an example of an embodiment of the present disclosure and is not intended to limit the embodiment of the present disclosure. Various modifications and variations of the illustrative embodiments will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, or the like, which is within the spirit and principles of the embodiments of the present specification, should be included in the scope of the claims of the embodiments of the present specification.
Claims (10)
1. A programmable power output module for testing a new energy battery, comprising:
a housing;
the integrated circuit board is fixedly arranged in the shell;
the input interface is arranged on the surface of the shell; the input interface is used for connecting a programmable power supply;
the plurality of output interfaces are arranged on the surface of the shell; each output interface is used as a programmable power supply output channel;
the input interface and the output interface are respectively and electrically connected with the integrated circuit board;
the programmable power supply output module further comprises a CC signal test interface and/or an NTC test interface;
the CC signal test interface is arranged on the surface of the shell and is electrically connected with the integrated circuit board; the CC signal test interface is used for being electrically connected with a CC signal end of the battery pack so as to realize CC signal test;
the NTC test interface is arranged on the surface of the shell and is electrically connected with the integrated circuit board; the NTC test interface is used for being electrically connected with an NTC signal end of the battery pack so as to realize NTC signal test.
2. The programmable power output module for testing a new energy battery according to claim 1, wherein a controllable switch is connected in series in a line between at least one of the plurality of output interfaces and the input interface.
3. The programmable power output module for testing a new energy battery according to claim 1, wherein a resistor is connected in series between a negative terminal in the input interface and the CC signal test interface.
4. The programmable power supply output module for testing the new energy battery according to claim 1, wherein a first resistor module is connected in series between a negative wiring terminal in the input interface and the CC signal test interface, the first resistor module comprises a plurality of parallel branches, and each parallel branch is provided with a resistor and a controllable switch which are connected in series; and two ends of the parallel branches are used as wiring terminals of the first resistor module.
5. The programmable power output module for new energy battery testing according to claim 1, wherein the programmable power output module comprises at least two CC signal test interfaces.
6. The programmable power output module for new energy battery testing as claimed in claim 1, wherein the NTC test interface comprises two terminals with a resistor connected in series between the two terminals.
7. The programmable power output module for testing a new energy battery according to claim 1, wherein a second resistor module is connected in series between two terminals of the NTC test interface, the second resistor module comprises a plurality of parallel branches, and each parallel branch is respectively provided with a resistor and a controllable switch in series; the resistances of the resistors on the different branches are different.
8. The programmable power output module for testing a new energy battery according to claim 1, further comprising a single negative electrode interface electrically connected to a negative electrode connection terminal of the programmable power supply in the input interface; the single negative electrode interface is used for outputting a negative electrode signal of the programmable power supply.
9. The programmable power output module for new energy battery testing according to claim 1, wherein the programmable power output module comprises at least two NTC test interfaces.
10. The programmable power output module for testing a new energy battery according to claim 1, wherein a controllable switch is connected in series between the input interface and at least one of the following: the input interface, the output interface, the CC signal test interface and the NTC test interface;
the programmable power supply output module further comprises:
the controller is arranged on the integrated circuit board and used for controlling the opening and closing states of the controllable switch;
the communication interface is arranged on the surface of the shell; the communication interface is in communication connection with the controller and is also used for being in communication connection with the upper computer so as to transmit control signals sent by the upper computer to the controllable switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321195641.8U CN220210729U (en) | 2023-05-17 | 2023-05-17 | Program-controlled power supply output module for testing new energy battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321195641.8U CN220210729U (en) | 2023-05-17 | 2023-05-17 | Program-controlled power supply output module for testing new energy battery |
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| CN220210729U true CN220210729U (en) | 2023-12-19 |
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| CN202321195641.8U Active CN220210729U (en) | 2023-05-17 | 2023-05-17 | Program-controlled power supply output module for testing new energy battery |
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