Battery module assembly method

Abstract

The present application relates to the technical field of power batteries, and discloses a battery module assembly method for assembling module units and outer cover shells using tooling, wherein the tooling includes a support platform, which is used to support the module units of the battery module and is provided with a number of module unit positioning parts; the lower end of the support platform is connected to a tooling base plate, which is used to install the support platform and is provided with a number of outer cover shell positioning parts. The battery module assembly method includes: step S1: positioning the module units on the support platform through the module unit positioning parts; step S2: installing soft copper plates between the module units to achieve electrical connection; step S3: abutting the outer cover shell against the positioning parts of the outer cover shell so that the outer cover shell is sleeved outside the module unit; step S4: fixing the module unit to the outer cover shell. The battery module assembly method of the present application replaces the traditional hoisting into the shell method, and solves the problems of difficult installation of soft copper plates between module units and damage to the soft copper plates due to improper installation.

Description

Technical Field

[0001] The present application relates to the technical field of power batteries, and in particular to a battery module assembly method. Background Art

[0002] The arm battery used in aircraft is different from the car power battery. Generally, during the design process, its size is more compact than that of the car power battery, such as Figure 1 As shown in FIG, if two module units 100 need to be installed in the module housing 200, the installation is very difficult due to the very compact space. Therefore, the soft copper plate 300 used for electrical connection between the module units 100 must be installed before the module units 100 are inserted into the housing, otherwise there will be no installation space after the module units 100 are inserted into the housing. After the soft copper plate is pre-installed, the two module units 100 cannot be inserted into the housing using the traditional battery lifting method because the soft copper plate is not strong enough to support the weight of the module units 100. Summary of the Invention

[0003] The purpose of the present application is to provide a battery module assembly method, which replaces the traditional lifting and shelling method, and solves the problems of difficult installation of soft copper plates between module units and damage to the soft copper plates due to improper installation.

[0004] In order to solve the above technical problems, the present application provides a battery module assembly method for assembling module units and outer cover shells using tooling, the tooling including: a support platform, the support platform is used to support each module unit of the battery module and is provided with a number of module unit positioning parts; the lower end of the support platform is connected to a tooling base plate, the tooling base plate is used to install the support platform and is provided with a number of outer cover shell positioning parts, the battery module assembly method includes: step S1: positioning each module unit on the support platform through the module unit positioning part; step S2: installing soft copper plates between each module unit to achieve electrical connection between the module units; step S3: abutting the outer cover shell against each outer cover shell positioning part so that the outer cover shell is arranged outside the module unit; step S4: fixedly connecting the module unit and the outer cover shell.

[0005] Preferably, the tooling base plate can also be detachably provided with a number of module side positioning parts arranged one by one opposite to each module unit, and the step S1 specifically includes: positioning each module unit on the support platform by the module unit positioning part and the module side positioning part; and the step S3 specifically includes: removing the module side positioning part and abutting the outer cover shell on each outer cover shell positioning part so that the outer cover shell is arranged outside the module unit.

[0006] Preferably, the outer cover shell positioning portion includes a receiving surface and an installation surface, and the installation surface is used to install the outer cover shell positioning portion on the tooling base plate. The step S3 specifically includes: abutting the side edge of the outer cover shell against the receiving surface of each outer cover shell positioning portion so that the outer cover shell is mounted outside the module unit.

[0007] Preferably, a through hole is provided on the tooling base plate, and the through hole is arranged relative to the fixing hole position of the module unit and the outer cover shell; the step S4 specifically includes: passing the bolt through the fixing hole position through the through hole to connect the module unit and the outer cover shell in series.

[0008] Preferably, after step S4, the method further includes: step S5: providing a base plate, and welding the base plate to the outer cover shell to encapsulate the battery module.

[0009] Preferably, the module unit positioning portion protrudes from the support platform and limits the module unit from moving in its length direction.

[0010] Preferably, the module unit positioning parts are arranged along the length direction of the support platform.

[0011] Preferably, the support platform is detachably connected to the tooling base plate.

[0012] Preferably, the module side positioning portion is higher than the support platform.

[0013] Preferably, the support platform includes a plurality of support blocks arranged at equal heights and at intervals.

[0014] The battery module assembly method of the present application replaces the traditional lifting and shelling method, solving the problems of difficult installation of soft copper plates between module units and damage to the soft copper plates due to improper installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Shown is a schematic diagram of the assembly of a battery module according to the prior art;

[0016] Figure 2 Shown is a schematic flow chart of a battery module assembly method according to an embodiment of the present application;

[0017] Figure 3 Shown is a structural schematic diagram of a battery module assembly method according to an embodiment of the present application;

[0018] Figure 4 Display as Figure 2 A partial enlarged view of position A in the middle;

[0019] Figure 5 Shown is a schematic diagram of assembling a battery module using the battery module assembly method according to an embodiment of the present application;

[0020] Figure 6 Shown is a bottom view of a battery module assembled using the battery module assembly method according to an embodiment of the present application;

[0021] Figure 7 Shown is another flow chart of the battery module assembly method according to an embodiment of the present application. DETAILED DESCRIPTION

[0022] To make the objectives, technical solutions, and advantages of the present invention more apparent, various embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will appreciate that many technical details are provided in various embodiments of the present invention to facilitate a better understanding of the present application. However, even without these technical details and the various variations and modifications based on the following embodiments, the technical solutions claimed in the claims of this application can be implemented.

[0023] Unless the context requires otherwise, throughout the specification and claims, the word "comprise" and variations such as "include" and "have" should be construed in an open, inclusive sense, that is, should be interpreted to mean "including, but not limited to."

[0024] The following will describe in detail various embodiments of the present invention in conjunction with the accompanying drawings to provide a clearer understanding of the objectives, features and advantages of the present invention. It should be understood that the embodiments shown in the accompanying drawings are not intended to limit the scope of the present invention, but are only intended to illustrate the essential spirit of the technical solution of the present invention.

[0025] Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any manner in one or more embodiments.

[0026] As used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "and / or" unless the context clearly dictates otherwise.

[0027] In the following description, in order to clearly show the structure and working mode of the present invention, many directional words will be used for description, but words such as "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", and "down" should be understood as convenient terms and should not be understood as restrictive terms.

[0028] The following describes embodiments of the present application with reference to the accompanying drawings. Figure 2 As shown, the battery module assembly method of the embodiment of the present application includes the following steps:

[0029] Step S1: positioning each module unit on the support platform through the module unit positioning part.

[0030] Specifically, the embodiment of the present application utilizes tooling to assemble the module unit 100 and the outer cover shell 200, such as Figure 3 As shown, the tooling includes a support platform 1 and a tooling base 2. The support platform 1 is used to support each module unit 100 of the battery module. The support platform 1 is provided with a plurality of module unit positioning parts 10 to limit the position of each module unit 100. Specifically, the module unit positioning parts 10 protrude from the support platform 1 and are arranged along the length and width directions of the support platform 1 to respectively limit the movement of each module unit 100 in its length and width directions.

[0031] In some embodiments, the module unit positioning portions 10 are arranged only along the length of the support platform 1 to restrict the movement of each module unit 100 in the lengthwise direction. In this embodiment, the tooling base plate 2 is further provided with a plurality of detachable module side positioning portions 21. The module side positioning portions 21 are higher than the support platform 1. Each module side positioning portion 21 is disposed opposite each module unit 100. The module side positioning portions 21 restrict the movement of each module unit 100 in the width direction of the tooling base plate 2, thereby restricting the movement of the module unit 100 in the width direction of the support platform 1.

[0032] Step S2: Install soft copper plates between the module units to achieve electrical connection between the module units.

[0033] Specifically, each module unit 100 needs to be electrically connected through a soft copper plate 300. In this embodiment, Figure 1 As shown in , the soft copper plate 300 can be connected to the rear side of the module unit side plate 101 of each module unit 100 to prevent the soft copper plate 300 from being affected by contact with the outside world.

[0034] Step S3: placing the outer cover shell against each outer cover shell positioning portion so that the outer cover shell is sleeved outside the module unit.

[0035] Specifically, if Figure 3As shown, the lower end of the support platform 1 is connected to a tooling base plate 2, which is used to install the support platform 1. The tooling base plate 2 is provided with a number of outer cover positioning parts 20. The outer cover positioning parts 20 are arranged around the support platform 1 to position the outer cover 200 of the battery module so that the outer cover 200 is accurately placed on the outside of the module unit 100. Furthermore, the outer cover positioning part 20 includes a receiving surface 201 and a mounting surface 202. The receiving surface 201 is used to support the outer cover 200, and the mounting surface 202 is used to install the outer cover positioning part 20 on the tooling base plate 2. The height difference between the receiving surface 201 and the support platform 1 is used to determine the depth of the module unit 100 entering the outer cover 200. Furthermore, the support platform 1 and the tooling base plate 2 are detachably connected, which facilitates the replacement of the support platform 1. The support platform 1 can be arranged by a number of support blocks of the same height at intervals, which facilitates the expansion and construction of module units 100 of different sizes.

[0036] In some embodiments, the module unit positioning portion 10 is only arranged along the length direction of the support platform 1, and a number of module side positioning portions 21 are detachably provided on the tooling base plate 2. Before the outer cover shell 200 is abutted against each outer cover shell positioning portion 20, the module side positioning portion 21 needs to be removed in advance to avoid interference between the outer cover shell 200 and it.

[0037] Step S4: Fix the module unit to the outer cover.

[0038] Specifically, if Figure 5 and Figure 6 As shown, a through hole 23 is provided on the tooling base plate 2, and the through hole 23 is arranged opposite to the fixing hole 3 of the module unit 100 and the outer cover shell 200. The module unit 100 and the outer cover shell 200 can be connected in series by passing bolts through the fixing hole 3. After the bolts are tightened, the entire product becomes a rigid whole, which can be subsequently hoisted and transported.

[0039] Further, if Figure 7 As shown, after step S4, the following steps may be further included: step S5: providing a bottom plate, and welding the bottom plate to the outer cover shell 200 to encapsulate the battery module.

[0040] The battery module assembly method of the present application replaces the traditional method of hoisting into the shell, which first positions the module unit and then installs the outer cover shell in reverse. It replaces the method of first positioning the outer cover shell and then installing the module unit upright, changes the assembly sequence, and can be used in situations where the installation space is small and hoisting is impossible. It solves the problems of difficult installation of soft copper plates between module units and damage to the soft copper plates due to improper installation.

[0041] The above embodiments are merely illustrative of the principles and effects of this application and are not intended to limit this application. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of this application. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical concepts disclosed in this application shall be covered by the claims of this application.

Claims

1. A battery module assembly method for assembling a module unit (100) and an outer cover shell (200) using a tool, characterized in that: The tooling comprises: a support platform (1), the support platform (1) being used to support each module unit (100) of the battery module and being provided with a plurality of module unit positioning portions (10); a tooling base plate (2) being connected to the lower end of the support platform (1), the tooling base plate (2) being used to install the support platform (1) and being provided with a plurality of outer cover shell positioning portions (20), a through hole (23) being provided on the tooling base plate (2), the through hole (23) being arranged relative to the fixing hole position (3) of the module unit (100) and the outer cover shell (200); and the battery module assembly method comprising: Step S1: positioning each module unit (100) on the supporting platform (1) using the module unit positioning portion (10); Step S2: installing soft copper plates (300) between the module units (100) to achieve electrical connection between the module units (100); Step S3: placing the outer cover shell (200) against each outer cover shell positioning portion (20) so that the outer cover shell (200) is sleeved outside the module unit (100); Step S4: inserting a bolt through the fixing hole (3) via the through hole (23) to connect the module unit (100) and the outer cover shell (200) in series; Step S5: providing a bottom plate, and welding the bottom plate to the outer cover (200) to encapsulate the battery module.

2. The battery module assembly method according to claim 1, characterized in that: The tooling base plate (2) is also detachably provided with a plurality of module side positioning parts (21) arranged one-to-one with each module unit (100). The step S1 specifically includes: positioning each module unit (100) on the support platform (1) by means of the module unit positioning parts (10) and the module side positioning parts (21); and the step S3 specifically includes: removing the module side positioning parts (21) and placing the outer cover shell (200) in contact with each outer cover shell positioning part (20), so that the outer cover shell (200) is sleeved outside the module unit (100).

3. The battery module assembly method according to claim 1, wherein: The outer cover shell positioning portion (20) includes a receiving surface (201) and a mounting surface (202), wherein the mounting surface (202) is used to mount the outer cover shell positioning portion (20) on the tooling base plate (2). The step S3 specifically includes: abutting the side edge of the outer cover shell (200) against the receiving surface (201) of each outer cover shell positioning portion (20) so that the outer cover shell (200) is sleeved outside the module unit (100).

4. The battery module assembly method according to claim 1, wherein: The module unit positioning portion (10) protrudes from the support platform (1) and limits the module unit (100) from moving in its length direction.

5. The battery module assembly method according to claim 1, wherein: The module unit positioning parts (10) are arranged along the length direction of the support platform (1).

6. The battery module assembly method according to claim 1, characterized in that: The support platform (1) is detachably connected to the tooling base plate (2).

7. The battery module assembly method according to claim 2, characterized in that: The module side positioning portion (21) is higher than the support platform (1).

8. The battery module assembly method according to claim 4, characterized in that: The support platform (1) comprises a plurality of support blocks arranged at equal heights and at intervals.

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