Battery cell module

Abstract

The utility model discloses a battery cell module which comprises a plurality of battery cell groups which are sequentially arranged along the thickness direction of the battery cell module, a mounting seat is arranged on each battery cell group, and a positioning mechanism is arranged on each mounting seat. The positioning mechanisms are used for being matched with one another to position and connect the battery cell groups when the battery cell groups are arranged in sequence; the battery cell module has the beneficial effects that the mounting seat arranged on the battery cell group is used for mounting the mounting plate, and the connecting sheet connected with the battery cell pole piece is mounted through the mounting plate, so that the electric connection of the battery cell module is realized; positioning structures are arranged on the mounting seats, and the positioning mechanisms on all the mounting seats are matched with one another when being sequentially arranged, so that all the battery cell groups are positioned and connected, and the battery cell groups are prevented from deviating and misplacing one another; and therefore, the electrical connection of the battery cell module can be effectively realized.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a battery core module. Background Art

[0002] The battery cell module is the energy storage unit of the power battery pack. By modularizing multiple battery cells, subsequent installation and use can be facilitated. In the battery cell module in the prior art, in order to facilitate the connection of multiple battery cells, several battery cells are usually first arranged and stacked, and then an aluminum bar is set on the top of the battery cell, and the pole pieces of multiple battery cells in the battery cell row are connected through the aluminum bar. However, since multiple battery cells need to be arranged, the battery cells are easily offset and misaligned with each other, which makes it inconvenient to accurately connect the battery cell pole pieces with the corresponding aluminum bars, and thus cannot effectively ensure the electrical connection of the battery cell module. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a battery core module.

[0004] The utility model is realized by the following technical solutions:

[0005] A battery cell module comprises a plurality of battery cell groups arranged in sequence along its own thickness direction, each of the battery cell groups is provided with a mounting seat, each of the mounting seats is provided with a positioning mechanism, and the positioning mechanism is used to cooperate with each other to position and connect each of the battery cell groups when the battery cell groups are arranged in sequence.

[0006] As a further improvement of the present invention, the positioning mechanism includes positioning pins and positioning slots respectively arranged on both sides of the mounting seat, and the positioning pin of the mounting seat is used to be inserted into the positioning slot of the mounting seat adjacent thereto.

[0007] As a further improvement of the utility model, the battery cell group includes a shell and at least two battery cell units arranged in the shell, the positive electrode sheet and the negative electrode sheet of each battery cell unit are located on the same end face and the end faces are oriented in the same direction, the battery cell units are arranged in sequence along their own thickness direction, the electrode sheets between two adjacent battery cell units are arranged oppositely, and the mounting seat is provided with an exposure opening for exposing the electrode sheets of the battery cell units.

[0008] As a further improvement of the utility model, a connecting portion is provided at the lower end of the mounting seat, and the connecting portion can be inserted into the shell along a preset direction. At least one card block is provided on one side of the connecting portion, and at least one card slot is provided on the shell, and the card block and the card slot are detachably matched.

[0009] As a further improvement of the utility model, it further comprises a foam layer, wherein the foam layer is arranged between the battery cells, and the foam layer is also arranged outside the outermost battery cell of the battery cell group.

[0010] As a further improvement of the utility model, at least one mounting plate for connecting each mounting seat is provided on the plurality of battery cell groups, a connecting opening corresponding to the exposed opening is provided on the mounting plate, and a connecting plate for respectively connecting the positive electrode sheet or the negative electrode sheet of each battery cell unit is provided on the mounting plate.

[0011] As a further improvement of the present invention, a plurality of bus bars are provided on each of the connecting sheets, and the bus bars are used for connecting the battery cells in series or in parallel.

[0012] As a further improvement of the utility model, it also includes module end plates arranged at the front and rear ends of the battery cell module, and a total connecting plate is arranged on the module end plate. The other end of the total connecting plate is connected to the electrode sheet of the battery cell monomer to respectively lead out the total positive and total negative electrodes of the battery cell module on both sides of the battery cell module.

[0013] As a further improvement of the present invention, the module end plate is provided with a first screw hole, the main connecting plate is provided with a second connecting hole corresponding to the first screw hole, and the main connecting plate is fixedly connected to the module end plate by bolts.

[0014] As a further improvement of the present invention, a plurality of binding straps are wound around the outer side of the battery core module.

[0015] The beneficial effects of the utility model are as follows: in the utility model, the mounting seat arranged on the battery cell group is used to install the mounting plate, and then the connecting plate connected to the battery cell pole piece is installed through the mounting plate to realize the electrical connection of the battery cell module; and a positioning structure is provided on the mounting seat, and the positioning mechanisms on each mounting seat cooperate with each other when arranged in sequence to realize the positioning and connection of each battery cell group, thereby preventing the battery cell groups from being offset and misaligned with each other; thereby ensuring that the battery cell module can effectively realize electrical connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following is a detailed description of the preferred implementation examples of the present invention with reference to the accompanying drawings to help understand the purpose and advantages of the present invention, wherein:

[0017] Figure 1 It is a schematic diagram of the structure of a utility model embodiment;

[0018] Figure 2 This is a schematic diagram of the structure of the mounting base in the embodiment of the utility model;

[0019] Figure 3 For the embodiment of the utility model corresponding to Figure 2A partial enlarged view of the middle part;

[0020] Figure 4 This is a schematic diagram of the structure of the battery pack in the embodiment of the utility model;

[0021] Figure 5 This is a schematic diagram of the mounting plate structure in an embodiment of the utility model;

[0022] Figure 6 This is a schematic diagram of the connecting piece structure in an embodiment of the utility model;

[0023] Figure 7 It is a schematic diagram of the upper structure of the battery cell group in the embodiment of the utility model. DETAILED DESCRIPTION

[0024] The utility model is further described in detail below based on the accompanying drawings and implementation cases.

[0025] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. The words "inside" and "outside" refer to the direction toward or away from the geometric center of a specific component, respectively. They are relative concepts, and therefore may change accordingly according to different locations and different usage conditions. Therefore, these or other directional terms should not be interpreted as restrictive terms.

[0026] refer to Figures 1 to 7 , the utility model embodiment discloses:

[0027] A battery cell module, the battery cell module 1 comprises a plurality of battery cell groups 101 arranged in sequence along its own thickness direction, each of the battery cell groups 101 is provided with a mounting seat 102, each of the mounting seats 102 is provided with a positioning mechanism, the positioning mechanism is used to cooperate with each other when the battery cell groups 101 are arranged in sequence to position and connect each of the battery cell groups 101; specifically, the positioning mechanism comprises a positioning pin 1021 and a positioning slot 1022 respectively arranged on both sides of the mounting seat 102, the positioning pin 1021 of the mounting seat 102 21, used to be inserted into the positioning slot 1022 of the adjacent mounting seat 102; a plurality of battery cell groups 101 are arranged in sequence to achieve stacking, at this time, the positioning pin 1021 of the mounting seat 102 can be removed into the positioning slot 1022 of the adjacent mounting seat 102, so as to achieve positioning and connection of each battery cell group 101, and prevent the battery cell groups 101 from being offset and misaligned with each other through the cooperation of the positioning pin 1021 and the positioning slot 1022; thereby ensuring that the battery cell module 1 can be effectively electrically connected later.

[0028] In this embodiment, the battery cell group 101 includes a shell 1011, at least two battery cell monomers 1012 (two in this embodiment) arranged in the shell 1011, the positive electrode sheet and the negative electrode sheet of each battery cell monomer 1012 are located on the same end surface and the end surfaces face the same direction, the battery cell monomers 1012 are arranged in sequence along their own thickness direction, and the electrode sheets of two adjacent battery cell monomers 1012 are arranged oppositely, and the mounting seat 102 is provided with an exposure opening 1023 for exposing the electrode sheets of the battery cell monomers 1012; through the above arrangement, the electrode sheets of the plurality of battery cell groups 101 arranged in sequence face the same direction to facilitate subsequent electrical connection; Figure 4 As shown, in this embodiment, one side of the shell 1011 is open, and the upper end of the shell 1011 is also provided with an opening for connecting the mounting seat 102 .

[0029] refer to Figure 5 and Figure 6 , at least one mounting plate 104 for connecting each mounting seat 102 is provided on the plurality of battery cell groups 101, and a connecting opening 105 corresponding to the exposed opening 1023 is provided on the mounting plate 104, and a connecting piece 106 for respectively connecting the positive electrode sheet or the negative electrode sheet of each battery cell monomer 1012 is provided on the mounting plate 104; a plurality of busbars 107 are provided on each of the connecting pieces 106, and the busbars 107 are used to connect each of the battery cell monomers 1012 in series / parallel (in series in this embodiment); through Through the connecting opening 105, the connecting piece 106 can be connected to the connecting piece 106 of the positive electrode sheet or the negative electrode sheet of each battery cell 1012. It is worth noting that the connecting piece 106 corresponds to the positive electrode sheet or the negative electrode sheet of the battery cell 1012 one by one, and the bus 107 is connected to the electrode sheet (positive electrode sheet / negative electrode sheet) of one battery cell 1012 at one end, and is connected to the electrode sheet (negative electrode sheet / positive electrode sheet, note: the positive electrode sheet is connected to the negative electrode sheet) of the adjacent battery cell 1012 at the other end to achieve a series electrical connection.

[0030] In this embodiment, a connecting portion 1024 is provided at the lower end of the mounting seat 102, and the connecting portion 1024 can be inserted into the shell 1011 along a preset direction. At least one card block 1025 is provided on one side of the connecting portion 1024, and at least one card slot is provided on the shell 1011, and the card block 1025 is detachably matched with the card slot.

[0031] The foam layer 103 is also included. The foam layer 103 is disposed between the battery cells 1012 . The foam layer 103 is also disposed outside the outermost battery cell 1012 of the battery cell group 101 .

[0032] It also includes a module end plate 2 arranged at the front and rear ends of the battery cell module 1, and a total connecting plate 108 is arranged on the module end plate 2. The other end of the total connecting plate 108 is connected to the electrode sheet of the battery cell monomer 1012, so as to lead out the total positive electrode and the total negative electrode of the battery cell module 1 on both sides of the battery cell module 1 respectively.

[0033] The module end plate 2 is provided with a first screw hole, and the main connecting plate 108 is provided with a second connecting hole 1081 corresponding to the first screw hole. The main connecting plate 108 is fixedly connected to the module end plate 2 by bolts.

[0034] A plurality of binding bands 109 are wound around the outer side of the battery module 1 to make the battery groups 101 fit more closely.

[0035] Working principle:

[0036] 1. First, control the connecting portion 1024 at the lower end of the mounting seat 102 to be inserted into the housing 1011 so that the clamping block 1025 is matched with the clamping slot.

[0037] 2. A first foam layer 103 is arranged inward from the opening on the side of the shell 1011, and two battery cells 1012 are arranged, and a foam layer 103 is also arranged between the two battery cells 1012, and the two battery cells 1012 are controlled as follows: Figure 7 As shown, the electrode sheets of the two battery cells 1012 face the same direction, but the positive and negative electrode sheets of the two battery cells 1012 are arranged oppositely; finally, a foam layer 103 is arranged at the opening on the side of the shell 1011, which constitutes a battery cell group 101 in this embodiment.

[0038] 3. Control each battery cell group 101 to be arranged in sequence along its own thickness direction. During the arrangement process, the positioning pin 1021 cooperates with the positioning slot 1022 to prevent the battery cell groups 101 from being offset and misaligned with each other; after the arrangement is completed, the mounting plate 104 is installed on the upper end of the battery cell module 1, and then a plurality of connecting pieces 106 are installed on the mounting plate 104 through a connecting piece, and each connecting piece 106 corresponds to the positive electrode piece or the negative electrode piece of the battery cell monomer 1012 one by one and is connected by welding; Figure 1 As shown, a plurality of bus bars 107 are installed to achieve a series electrical connection between the battery cell groups 101 .

[0039] 4. Module end plates 2 are installed at the front and rear ends of the battery cell module 1, and a total connecting plate 108 is also installed at the front and rear ends of the battery cell module 1. Specifically, one end of the total connecting plate 108 is connected to the total positive and negative electrodes of the aforementioned series-connected battery cell groups 101, and the other end is fixed to the first screw hole by bolts.

[0040] 5. Finally, wrap the battery module 1 with the binding tape 109 to complete the assembly of this embodiment.

[0041] Finally, it should be noted that the above implementation cases are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the above implementation cases, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above implementation cases, or replace some of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the implementation cases of the utility model.

Claims

1. A battery cell module, the battery cell module (1) comprising a plurality of battery cell groups (101) arranged in sequence along its own thickness direction, characterized in that: A mounting seat (102) is provided on each of the battery cell groups (101), and a positioning mechanism is provided on each of the mounting seats (102), the positioning mechanism being used to cooperate with each other when the battery cell groups (101) are arranged in sequence to position and connect each of the battery cell groups (101); The positioning mechanism comprises a positioning pin (1021) and a positioning slot (1022) respectively arranged on both sides of the mounting seat (102); the positioning pin (1021) of the mounting seat (102) is used to be inserted into the positioning slot (1022) of the mounting seat (102) adjacent thereto; The battery cell group (101) comprises a shell (1011) and two battery cell units (1012) arranged in the shell (1011); the positive electrode sheet and the negative electrode sheet of each battery cell unit (1012) are located on the same end surface and the end surfaces face the same direction; the battery cell units (1012) are arranged in sequence along their own thickness direction; the electrode sheets of two adjacent battery cell units (1012) are arranged oppositely; and the mounting seat (102) is provided with an exposure opening (1023) for exposing the electrode sheets of the battery cell units (1012).

2. A battery cell module according to claim 1, characterized in that: A connecting portion (1024) is provided at the lower end of the mounting seat (102); the connecting portion (1024) can be inserted into the housing (1011) along a preset direction; at least one clamping block (1025) is provided on one side of the connecting portion (1024); at least one clamping slot is provided on the housing (1011); the clamping block (1025) is detachably matched with the clamping slot.

3. A battery cell module according to claim 2, characterized in that: It also comprises a foam layer (103), wherein the foam layer (103) is arranged between each of the battery cell monomers (1012), and the foam layer (103) is also arranged outside the outermost battery cell monomer (1012) of the battery cell group (101).

4. The battery cell module according to claim 1, characterized in that: At least one mounting plate (104) for connecting to each mounting seat (102) is provided on the plurality of battery cell groups (101); a connection opening (105) corresponding to the exposed opening (1023) is provided on the mounting plate (104); and a connecting plate (106) for respectively connecting to the positive electrode plate or the negative electrode plate of each battery cell unit (1012) is provided on the mounting plate (104).

5. A battery cell module according to claim 4, characterized in that: A plurality of bus bars (107) are arranged on each of the connecting sheets (106), and the bus bars (107) are used to connect the battery cells (1012) in series or in parallel.

6. A battery cell module according to claim 5, characterized in that: It also includes module end plates (2) arranged at the front and rear ends of the battery module (1), a total connection plate (108) being arranged on the module end plate (2), the other end of the total connection plate (108) being connected to the electrode sheet of the battery cell (1012) so as to lead out the total positive electrode and the total negative electrode of the battery module (1) on both sides of the battery module (1) respectively.

7. A battery cell module according to claim 6, characterized in that: The module end plate (2) is provided with a first screw hole, the main connecting plate (108) is provided with a second connecting hole (1081) corresponding to the first screw hole, and the main connecting plate (108) is fixedly connected to the module end plate (2) by means of bolts.

8. The battery cell module according to claim 1, characterized in that: A plurality of binding straps (109) are wound around the outer side of the battery core module (1).

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