Tandem formation and capacity grading device

Abstract

The utility model discloses a serial-connection formation and capacity grading device. The serial-connection formation and capacity grading device comprises a battery cell formation and capacity grading module, a serial-connection control module, a battery module assembly and a fixing frame, the battery cell formation and capacity grading module comprises a plurality of groups of testing units which are connected in parallel, and the testing units are electrically connected with the battery module assembly through the series control module; the battery module assembly comprises a plurality of power supply units, each power supply unit is formed by connecting a plurality of power supplies in series, the set number of the power supply units is matched with the set number of the test units, and each test unit is connected with one power supply unit. According to the utility model, the integral displacement in the formation and capacity grading process is realized, the power supply voltage can be effectively controlled by arranging the series control module, the stability of the test process is improved, the power supply unit is formed by connecting a plurality of power supplies in series, and the power supply can be supplied to the test unit with the high-power electric quantity requirement.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical component capacity charge and discharge, in particular to a series chemical component capacity device. Background Art

[0002] At present, in the market, the chemical component capacity is carried out by the method of fixing a power supply cabinet beside the rack to supply power for the chemical component capacity charge and discharge test of the battery cells. However, when the traditional chemical component capacity machine is used for chemical component capacity, it is necessary to fix the chemical forming equipment and the power supply cabinet. After providing power to the power module, the battery cells are put into the equipment, and then the probes are made to contact the battery cells for chemical forming, component capacity charge and discharge test. The disadvantage is that the battery cells can only move after the chemical forming and component capacity time of the equipment reaches, with low flexibility. Content of the Utility Model

[0003] In view of the above problems, the present utility model is proposed to provide a series chemical component capacity device that overcomes or at least partially solves the above problems.

[0004] The present utility model provides a series chemical component capacity device, which includes: a battery cell chemical component capacity module, a series control module, a battery module assembly and a fixing frame; the battery cell chemical component capacity module and the battery module assembly are respectively fixedly arranged on the fixing frame, and the series control module is arranged on one side of the battery cell chemical component capacity module; the series control module is electrically connected to the battery cell chemical component capacity module and the battery module assembly respectively;

[0005] The battery cell chemical component capacity module includes multiple groups of parallel test units, and the test units are respectively electrically connected to the battery module assembly through the series control module;

[0006] The battery module assembly includes multiple power supply units, each power supply unit is composed of multiple power supplies connected in series, and the number of the arranged power supply units matches the number of the arranged test units, and each test unit is respectively connected to one power supply unit.

[0007] Optionally, both between the battery module assembly and the series control module and between the series control module and the battery cell chemical component capacity module are connected through quick-connect plugs.

[0008] Optionally, the series control module includes an inverter and a control component, the inverter and the control component are electrically connected, and the inverter is respectively connected to the battery cell chemical component capacity module and the battery module assembly.

[0009] Optionally, the test unit includes a negative test module and a positive test module.

[0010] Optionally, the battery module assembly is detachably mounted on the fixing bracket.

[0011] Optionally, a moving component is further provided at the bottom of the fixing bracket.

[0012] The technical solution provided in the embodiment of the present invention has at least the following technical effects or advantages:

[0013] Compared with the prior art, the series formation and grading device in the embodiment of the present invention assembles the cell formation and grading module, the series control module, and the battery module assembly into one body through the fixing plate, realizes the overall displaceability during the formation and grading process, and at the same time, the supply voltage can be effectively controlled by setting the series control module, improving the stability of the test process. By connecting multiple power supplies in series to form a power supply unit, it can supply power to the test unit with high-power power requirements, and has good application prospects.

[0014] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly, it can be implemented according to the content of the specification. In order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following specifically describes the specific embodiments of the present invention. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is a schematic structural diagram of the series formation and grading device of the present invention;

[0017] Figure 2 It is a schematic diagram of the power supply principle of the series formation and grading device of the present invention.

[0018] Description of the Reference Numerals:

[0019] 1. Test module electrical components; 2. Negative test module; 3. Positive test module; 4. Fixing bracket; 5. Cell formation and grading module; 6. Series control module; 7. Battery module assembly. Detailed Embodiments

[0020] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the drawings.

[0021] To enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. The accompanying drawings show the preferred embodiments of the present utility model. The present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present utility model more thorough and comprehensive.

[0022] Unless otherwise specifically stated, various raw materials, instruments, equipment, etc. used in the present utility model can be obtained through market purchase or can be prepared by existing methods.

[0023] Figure 1 is a schematic structural diagram of a series formation and grading device provided by an embodiment of the present utility model. Figure 2 is a schematic diagram of the power supply principle of the series formation and grading device described in the present utility model. Refer to Figure 1-2 As shown, the series formation and grading device includes a cell formation and grading module 5, a series control module 6, a battery module assembly 7, and a fixing frame 4; the cell formation and grading module 5 and the battery module assembly 7 are respectively fixedly arranged on the fixing frame 4, and the series control module 6 is arranged on one side of the cell formation and grading module 5; the series control module 6 is electrically connected to the cell formation and grading module 5 and the battery module assembly 7 respectively. The battery module assembly 7 is used to provide electric energy, the cell formation and grading module 5 is used to accommodate battery cells to be formed and graded, and the series control module 6 is used to realize the voltage conversion between the cell formation and grading module 5 and the battery module assembly 7. For example, the series control module 6 converts the high-voltage electricity output by the battery module assembly 7 into the low-voltage electricity required by the cell formation and grading module 5, or the series control module 6 converts the low-voltage electricity of the cell formation and grading module 5 into the high-voltage electricity required by the battery module assembly 7; the cell formation and grading module 5 includes multiple groups of parallel test units, and the test units are respectively electrically connected to the battery module assembly 7 through the series control module 6. Each test unit is respectively used to accommodate a battery cell to be formed and graded. The battery module assembly 7 includes multiple power supply units, each power supply unit is composed of multiple power sources connected in series, and the number of power supply units is matched with the number of test units. Each test unit is respectively connected to one power supply unit. Since the test units are arranged in parallel with each other and the test units and the power supply units are in one-to-one correspondence, correspondingly, one power supply unit supplies power to one test unit for testing the battery cells to be formed and graded.

[0024] The battery module assembly 7 and the series control module 6, as well as the series control module 6 and the cell formation and grading module 5 are all connected by quick-connect plugs. Based on the quick-insertion method, electrical connection can be conveniently achieved.

[0025] The series control module 6 includes an inverter and a control component. The inverter and the control component are electrically connected. The inverter is respectively connected to the cell formation and grading module 5 and the battery module assembly 7 to achieve voltage conversion between the cell formation and grading module 5 and the battery module assembly 7. The control component is used to control the number of power supplies in series of the battery module assembly 7 connected by the inverter to be applicable to test units of different specifications, and at the same time perform the data sampling function.

[0026] In the embodiment of the present utility model, the series control module 6 can also be arranged above the cell formation and grading module 5, which can reduce the space occupation in the horizontal direction and also have better flexibility during overall handling.

[0027] The cell formation and grading module 5 further includes a test module electrical component 1. The test units are all detachably installed on the test module electrical component 1. The test module electrical component 1 is composed of a support frame and an electrical component. The support frame provides physical support, and the electrical component provides electrical support for the test units.

[0028] The test unit includes a negative test module 2 and a positive test module 3. The negative test module 2 and the positive test module 3 are respectively connected to the corresponding ear (negative or positive) of the battery unit to be formed and graded for testing the battery unit to be formed and graded.

[0029] In the embodiment of the present utility model, the battery module assembly 7 is detachably installed on the fixing frame 4. When disassembly and assembly are required for maintenance, it is convenient to disassemble. Or when the battery module assembly 7 runs out of power and needs to be charged, it can also be disassembled and moved to other locations for charging. Of course, it should be noted that the battery module assembly 7 is provided with a charging interface and can also be directly connected to an external charging device through a wire harness for charging. On the other hand, since the fixing plate is placed on the ground, the entire device can also be moved with the fixing plate as a fulcrum to achieve displacement for operations such as charging.

[0030] The fixing bracket 4 is placed on a plane to provide physical support for components such as the cell formation and grading module 5, the series connection control module 6, and the battery module assembly 7. In the embodiment of the present invention, in order to enable the battery module assembly 7 to be used when following the movement of the test module, with the fixing plate as the support node, the cell formation and grading module 5, the series connection control module 6, and the battery module assembly 7 are assembled into one body to achieve the overall displaceable effect.

[0031] In other embodiments of the present invention, a moving component (not shown in the figure) may be provided at the bottom of the fixing bracket 4. The moving component may be a wheel set, and the wheel set may be a caster manually pushed by a person or a pulley controlled by an electric motor, which is selected according to actual application requirements to quickly achieve displacement on a plane and reduce labor costs.

[0032] Compared with the prior art, the series connection formation and grading device in the embodiment of the present invention assembles the cell formation and grading module 5, the series connection control module 6, and the battery module assembly 7 into one body through the fixing plate to achieve the overall displaceability during the formation and grading process. At the same time, by setting the series connection control module 6, the supply voltage can also be effectively controlled, improving the stability of the test process. By connecting multiple power supplies in series to form a power supply unit, it can supply power to a test unit with high-power power requirements and has good application prospects.

[0033] In the specification provided herein, a large number of specific details are set forth. However, it can be understood that the embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and technologies have not been shown in detail so as not to obscure the understanding of this specification.

[0034] Similarly, it should be understood that in order to streamline this disclosure and assist in understanding one or more of the various inventive aspects, in the foregoing description of the exemplary embodiments of the present invention, the various features of the present invention are sometimes grouped together in a single embodiment, figure, or description thereof. However, this disclosure should not be construed as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as reflected by the claims, the inventive aspects lie in less than all of the features of the preceding disclosed single embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of the present invention.

[0035] It should be noted that the above embodiments illustrate the present invention rather than limit the present invention, and those skilled in the art can design alternative embodiments without departing from the scope of the appended claims.

Claims

1. A series-connected capacity-splitting device, characterized in that: The series-connected capacity-splitting device comprises: a cell-connected capacity-splitting module, a series control module, a battery module assembly and a fixing frame; the cell-connected capacity-splitting module and the battery module assembly are respectively fixedly arranged on the fixing frame, and the series control module is arranged on one side of the cell-connected capacity-splitting module; the series control module is respectively electrically connected to the cell-connected capacity-splitting module and the battery module assembly; The cell-dividing capacity module comprises a plurality of parallel test units, and the test units are electrically connected to the battery module assembly through the series control module respectively; The battery module assembly includes multiple power supply units, each of which is composed of multiple power supplies connected in series, and the number of power supply units is matched with the number of test units, and each test unit is connected to one power supply unit.

2. The serial volume fractionation device according to claim 1, characterized in that: The battery module assembly and the series control module as well as the series control module and the battery cell capacity module are connected via quick-connect plugs.

3. The serial volume fractionation device according to claim 1, characterized in that: The series control module includes an inverter and a control component, the inverter and the control component are electrically connected, and the inverter is respectively connected to the battery cell capacity module and the battery module component.

4. The serial volume fractionation device according to claim 1, characterized in that: The battery cell componentization module also includes a test module electrical component, and the test units are detachably mounted on the test module electrical component, and the test module electrical component is composed of a support frame and electrical components.

5. The serial volume fractionation device according to claim 1, characterized in that: The test unit includes a negative electrode test module and a positive electrode test module.

6. The serial volume fractionation device according to claim 1, characterized in that: The battery module assembly is detachably mounted on the fixing frame.

7. The serial volume fractionation device according to claim 1, characterized in that: A moving component is also arranged at the bottom of the fixing frame.

Images