Battery module and battery pack

Abstract

The application relates to the technical field of power batteries, and provides a battery module and a battery pack. The battery module comprises a module unit, an integrated busbar, the integrated busbar comprises a plurality of busbar units which are arranged at intervals, and a pressing strip. The pressing strip is arranged between two adjacent busbar units, and the pressing strip, the top of the module unit and the surrounding structures of the two busbar units form a glue filling space. The battery module of the application forms the glue filling space by the pressing strip, the module unit and the surrounding structures of the two adjacent busbar units, which is beneficial to limiting the thickness and width of the structural glue to a certain extent, avoiding waste of the structural glue, effectively improving the bonding effect among the pressing strip, the integrated busbar and the module unit, and thus facilitating the improvement of the battery module mode.

Description

Technical Field

[0001] This application relates to the field of power battery technology, and in particular to a battery module and battery pack. Background Technology

[0002] Currently, after the battery modules are placed in the casing, they need to be positioned using pressure strips to secure the integrated busbar and the battery module. Structural adhesive is typically applied between the pressure strip and the battery module. After the adhesive is applied, the pressure strip and the battery module are bonded and fixed together, ensuring the effective positioning of the battery module and integrated busbar by the pressure strip. However, the application of structural adhesive is generally done manually, making it difficult to control the thickness and width of the adhesive, which can easily affect the bonding effect and thus hinder the improvement of battery module modes. Utility Model Content

[0003] In view of this, this application aims to propose a battery module to improve the bonding effect of the pressure strip.

[0004] To achieve the above objectives, the technical solution of this application is implemented as follows:

[0005] A battery module includes a module unit and an integrated busbar disposed on the top of the module unit;

[0006] The integrated busbar includes multiple busbar units spaced apart, and pressure strips disposed between two adjacent busbar units;

[0007] The pressure strip, the top of the module unit, and the enclosure of the two busbar units form a potting space.

[0008] Furthermore, a connector is provided between adjacent busbar units; the connector is configured to be a plurality of such connectors arranged at intervals along a first preset direction, and the connector is located between the pressure strip and the module unit.

[0009] Furthermore, the pressure strip is provided with a plurality of glue-filling holes spaced apart along the first preset direction, and the glue-filling holes are in communication with the glue-filling space.

[0010] Furthermore, the connector is bonded to the pressure strip, and / or, the connector has foam abutting against the top of the module unit on the side facing the module unit.

[0011] Furthermore, at least one of the busbar units has a side strip on the side facing the pressure strip, and a gap is formed between the side of the busbar unit with the side strip and the pressure strip; the side strip is located below the pressure strip and extends into the glue-filling space along a second preset direction, the gap is located above the side strip and communicates with the glue-filling space.

[0012] Furthermore, the busbar unit has a fixing part on the side where the edge strip is located, and the fixing part abuts against the pressure strip; and / or, the busbar unit has a fixing strip on the side where the edge strip is located, and the fixing strip is located at the front and rear ends of the busbar unit in a first preset direction and abuts against the pressure strip.

[0013] Furthermore, the module unit includes multiple battery cell groups arranged along a second preset direction and abutting each other, and the battery cell group includes multiple battery cells arranged along a first preset direction; the pressure strip is located above the abutting point of two battery cell groups, and the pressure strip, the two busbar units and the top of the two battery cell groups form the potting space.

[0014] Furthermore, a partition is sandwiched between two adjacent module units, and the partition is provided at both ends of each of the battery cells in the first preset direction.

[0015] Compared with related technologies, this application has the following advantages:

[0016] (1) The battery module described in this application, through the arrangement of multiple busbar units and pressure strips, forms a space between two adjacent busbar units for accommodating the pressure strip, so as to realize the positioning of the pressure strip. At the same time, the pressure strip, the top of the module unit, and the opposite sides of two adjacent busbar units together form a potting space for injecting structural adhesive. The potting space helps to limit the thickness and width of the structural adhesive to a certain extent. While avoiding waste of structural adhesive, it can effectively improve the bonding effect between the pressure strip, the integrated busbar, and the module unit, thereby facilitating the improvement of the battery module mode.

[0017] (2) By setting the connectors, the independent busbar units can be connected together, so as to facilitate the installation and arrangement of multiple busbar units on the module unit. At the same time, the connectors can ensure that the gaps between the busbar units are consistent, thereby ensuring that the size of the glue-filling space is consistent, preventing the amount of structural adhesive used from being affected by the different spacing between the busbar units, and thus ensuring the bonding effect between the module unit and the integrated busbar.

[0018] (3) By setting the injection hole on the pressure strip, the structural adhesive can be directly injected into multiple parts of the injection space through the injection hole, which is beneficial to the injection operation of the structural adhesive and improves the injection efficiency.

[0019] (4) The adhesive connection between the connector and the pressure strip facilitates the fixing of the pressure strip between two adjacent busbar units. Simultaneously, during adhesive injection into the injection space, the connector, by bonding the pressure strip, prevents the pressure strip from detaching upwards due to the pressure of the structural adhesive injection, thus maintaining the volume of the injection space and facilitating control of the amount of structural adhesive used. Furthermore, the foam component limits the thickness of the structural adhesive to ensure effective bonding.

[0020] (5) By setting the gap, during the process of injecting adhesive into the injection space, structural adhesive can overflow from the injection space and enter the gap. The structural adhesive entering the gap not only achieves bonding between the busbar unit and the pressure strip, improving the connection effect between the busbar unit and the pressure strip, but also serves as a guide to avoid excessive structural adhesive. Furthermore, when the structural adhesive enters the gap, through the setting of the edge strip, the structural adhesive can not only bond the opposite sides of the module unit and the busbar unit, but also enter the top of the edge strip through the gap. The cured structural adhesive can form a constraint on the edge strip and the busbar unit in the height direction, further preventing the busbar unit and the module unit from separating, thereby improving the connection effect between the integrated busbar and the module unit.

[0021] (6) By setting the fixing part and the fixing strip, the fixing part and the fixing strip can abut against the side of the pressure strip facing the gap, preventing the pressure strip from moving and causing the width of the gap to change, avoiding the unevenness of the gap width from affecting the entry of the structural adhesive into the gap, and affecting the constraint effect of the structural adhesive on the edge strip.

[0022] (7) By creating a potting space above the contact point of the battery cell assembly, the integrated busbar and multiple battery cells are bonded together.

[0023] (8) By setting the separator, each cell can be separated to prevent the thermal runaway heat from being transferred to other cells when a single cell experiences thermal runaway, thereby enhancing the safety of the battery module. At the same time, the separator can play a supporting and limiting role to ensure the regularity of the arrangement of each cell.

[0024] This application also proposes a battery module, which includes a housing and a battery module as described above disposed within the housing.

[0025] Furthermore, the housing is provided with a crossbeam extending in a second preset direction, and the crossbeam abuts against the end of the module unit in a first preset direction; the end of the pressure strip is provided with a positioning part, and the crossbeam is provided with a positioning mating part for connecting the positioning part.

[0026] The battery pack and / or battery module described in this application have the same technical effects as related technologies, and will not be described in detail here. Attached Figure Description

[0027] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0028] Figure 1 This is a schematic diagram of the overall structure of the battery module described in the embodiments of this application;

[0029] Figure 2 This is a partial structural schematic diagram of the battery module described in the embodiments of this application from a top view.

[0030] Figure 3 for Figure 2 Cross-sectional view at position AA in the middle;

[0031] Figure 4 This is a schematic diagram of the integrated busbar structure described in an embodiment of this application;

[0032] Figure 5 This is a partial structural diagram of the back side of the integrated busbar as described in an embodiment of this application;

[0033] Figure 6 for Figure 4 Enlarged view of the location shown in B;

[0034] Figure 7 This is a schematic diagram of the battery pack structure described in an embodiment of this application;

[0035] Figure 8 for Figure 7 A magnified view of the position shown in C;

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Module unit; 101. Cell assembly; 1011. Cell; 1012. Separator;

[0038] 2. Busbar unit; 201. Busbar bracket; 202. Busbar;

[0039] 3. Pressure strip; 301. Glue filling hole; 302. Through hole; 303. Fastener;

[0040] 4. Glue dispensing space; 401. Gap;

[0041] 5. Connectors; 501. Foam;

[0042] 6. Edge strips;

[0043] 7. Fixing part;

[0044] 8. Fixing strip;

[0045] 9. Shell; 901. Crossbeam. Detailed Implementation

[0046] To make the technical solution and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0047] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0048] Furthermore, it should be noted that in the description of this application, if terms such as "upper," "lower," "inner," or "outer" appear, indicating orientation or positional relationship, these are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0049] Furthermore, in the description of this application, unless otherwise expressly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application in light of the specific circumstances.

[0050] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0051] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0052] An embodiment of the first aspect of this application provides a battery module.

[0053] In related technologies, after the battery module is placed in the casing, a pressure strip is needed to position the integrated busbar and the battery module. Structural adhesive is typically applied between the pressure strip and the battery module, followed by a pressing process to bond and fix the strip to the module, ensuring the effective positioning of the battery module and integrated busbar by the pressure strip. However, the application of structural adhesive is usually done manually, making it difficult to control the thickness and width of the adhesive during the pressing process. This can easily affect the bonding effect, thus hindering the improvement of battery module modes.

[0054] In view of this, in order to overcome the shortcomings of related technologies, the battery module of this embodiment combines... Figures 1 to 3 As shown, the overall design includes a module unit 1 and an integrated busbar located on top of the module unit 1.

[0055] The integrated busbar includes multiple busbar units 2 spaced apart, and a pressure strip 3 located between two adjacent busbar units 2. The pressure strip 3, the top of the module unit 1, and the enclosure of the two busbar units 2 form an adhesive filling space 4.

[0056] Thus, by setting up multiple busbar units 2 and pressure strips 3, a space for accommodating the pressure strip 3 is formed between two adjacent busbar units 2. This allows the pressure strip 3, the top of the module unit 1, and the opposite sides of two adjacent busbar units 2 to jointly form a filling space 4 for structural adhesive. The filling space 4 helps to limit the thickness and width of the structural adhesive to a certain extent. While avoiding waste of structural adhesive, it can effectively improve the bonding effect between the pressure strip, the integrated busbar, and the module unit 1, thereby facilitating the improvement of the battery module mode.

[0057] Based on the above general introduction, specifically, the busbar unit 2 of this embodiment includes a busbar bracket 201 and a plurality of busbars 202 disposed on the busbar bracket 201. The busbars 202 are used to connect the terminals of the battery cells 1011 in the module unit 1. The busbar bracket 201 of this embodiment is provided with holes for passing through the terminals of the battery cells 1011, and the holes extend to one side of the busbar bracket 201 and communicate with the outside. This makes the potting space 4 not only formed between two adjacent busbar brackets 201, but also extend along a second preset direction, that is, the width direction of the battery module, into the area between the busbar bracket 201 and the terminals of the battery cells 1011. When structural adhesive is injected into the injection space 4, it can flow into the space between the busbar support 201 and the battery cell 1011 terminal. Of course, since the space between the busbar support 201 and the battery cell 1011 terminal is limited, the injection space 4 can still control the amount of structural adhesive used as a whole, as well as limit the width and thickness of the structural adhesive, to ensure the bonding effect.

[0058] In some of the exemplary implementations, combined with Figures 4 to 6As shown, a connector 5 is provided between adjacent busbar units 2. Multiple connectors 5 are arranged at intervals along a first preset direction, i.e., the length direction of the battery module, and are located between the pressure strip 3 and the module unit 1. The connectors 5 connect the individual busbar units 2 together, facilitating the installation and arrangement of multiple busbar units 2 on the module unit 1. Simultaneously, the connectors 5 ensure consistent spacing between the busbar units 2, thereby ensuring consistent size of the potting space 4 and preventing variations in the gap 401 between the busbar units 2 from affecting the amount of structural adhesive used, thus ensuring the bonding effect between the module unit 1 and the integrated busbar.

[0059] In some exemplary embodiments, the pressure strip 3 has a plurality of injection holes 301 spaced apart along a first preset direction, and the injection holes 301 communicate with the injection space 4. It is understood that if the injection holes 301 are not provided, since the injection space 4 is through in the first preset direction, the structural adhesive can only be injected from one end of the injection space 4. The structural adhesive needs to flow from one end of the injection space 4 to the other end to complete the injection operation, which is not only time-consuming, but also detrimental to the flow of the structural adhesive and affects the uniformity of the injection.

[0060] Therefore, by setting the injection hole 301 on the pressure strip 3, structural adhesive can be directly injected into multiple parts of the injection space 4 through the injection hole 301. The structural adhesive entering the injection space 4 through the injection hole 301 can flow in the first preset direction, which is beneficial to the injection operation of structural adhesive and improves the injection effect.

[0061] In practical implementation, since the injection space 4 is through in the first preset direction, when the structural adhesive overflows from both ends of the injection space 4, it can be said that the injection space 4 is completely filled, thus ensuring the amount of structural adhesive used and the injection effect.

[0062] Furthermore, the relationship between the width S of the pressure strip 3 and the diameter D of the glue-filling hole 301 satisfies 8mm≤D≤(S-4)mm, and the thickness N of the pressure strip 3 ≥6mm, to limit the minimum diameter of the glue-filling hole 301, ensure smooth glue filling, and simultaneously guarantee the structural strength of the pressure strip 3. The specific dimensions of the pressure strip 3 and the diameter of the glue-filling hole 301 will not be elaborated here.

[0063] In some exemplary embodiments, the connector 5 is bonded to the pressure strip 3. This bonding arrangement secures the pressure strip 3 between two adjacent busbar units 2. Simultaneously, during the filling of the adhesive space 4, the connector 5, by bonding the pressure strip 3, prevents the pressure strip 3 from detaching upwards due to the pressure of the adhesive filling, thus preventing the adhesive space 4 from rupturing and failing. This helps maintain the volume of the adhesive space 4 and facilitates control over the amount of structural adhesive used. Furthermore, the connector 5 has a foam 501 on the side facing the module unit 1 that abuts against the top of the module unit 1. The foam 501, by abutting against the top of the module unit 1, limits the thickness of the structural adhesive, ensuring a good bond. In specific implementations, the pressure strip 3, the foam, and the connector 5 are bonded together with double-sided adhesive.

[0064] In some exemplary embodiments, at least one busbar unit 2 has a side strip 6 on the side facing the pressure strip 3, and a gap 401 is formed between the side of the busbar unit 2 with the side strip 6 and the pressure strip 3. The side strip 6 is located below the pressure strip 3 and extends into the glue-filling space 4 along a second preset direction. The gap 401 is located above the side strip 6 and communicates with the glue-filling space 4.

[0065] By setting the gap 401, during the process of injecting adhesive into the injection space 4, structural adhesive can overflow from the injection space 4 and enter the gap 401. The structural adhesive entering the gap 401 not only achieves the bonding between the busbar unit 2 and the pressure strip 3, improving the connection effect between the busbar unit 2 and the pressure strip 3, but also serves as an indicator. By observing whether there is structural adhesive in the gap 401, it can be determined whether the structural adhesive has been injected in place, so as to avoid the occurrence of excessive or insufficient structural adhesive.

[0066] Furthermore, when the structural adhesive enters the gap 401, through the setting of the edge strip 6, the structural adhesive can not only bond the opposite sides of the module unit 1 and the busbar unit 2, but also enter the top of the edge strip 6 through the gap 401. The cured structural adhesive can form a constraint on the edge strip 6 and the busbar unit 2 in the height direction, so as to further prevent the busbar unit 2 from separating from the module unit 1, thereby improving the connection effect between the integrated busbar and the module unit 1.

[0067] In specific implementation, each busbar unit 2 is provided with a side strip 6, which is formed by the connecting member 5 extending along the first preset direction, and the front and rear ends of the busbar unit 2 in the first preset direction are also provided with side strips 6.

[0068] In some exemplary embodiments, the busbar unit 2 has a fixing part 7 on the side with the edge strip 6, and the fixing part 7 abuts against the pressure strip 3. At the same time, the busbar unit 2 may also have a fixing strip 8 on the side with the edge strip 6, the fixing strip 8 being located at the front and rear ends of the busbar unit 2 in a first preset direction, and abutting against the pressure strip 3.

[0069] With the fixing part 7 and the fixing strip 8 in place, both the fixing part 7 and the fixing strip 8 can abut against the side of the pressure strip 3 facing the gap 401, preventing the pressure strip 3 from moving towards the side where the gap 401 is located, thus avoiding changes in the width of the gap 401. This prevents unevenness in the width of the gap 401 from affecting the entry of structural adhesive into the gap 401 and the constraint effect of the structural adhesive on the edge strip 6. At the same time, the fixing part 7 and the fixing strip 8 abut against the pressure strip 3, which can further improve the fixing effect of the pressure strip 3.

[0070] In specific implementation, the fixing part 7 is fixed on the busbar bracket 201 of each busbar unit 2, and the fixing strip 8 is connected to the side strip 6.

[0071] In some exemplary embodiments, the module unit 1 includes a plurality of battery cell groups 101 arranged along a second preset direction and abutting each other, and the battery cell group 101 includes a plurality of battery cells 1011 arranged along a first preset direction. A pressure strip 3 is located above the abutting point of two battery cell groups 101, and the pressure strip 3, two busbar units 2, and the top of the two battery cell groups 101 form a potting space 4. By forming the potting space 4 above the abutting point of the battery cell groups 101, the integrated busbar and the plurality of battery cells 1011 are bonded together.

[0072] In a specific implementation, the module unit 1 of this embodiment includes two battery cell groups 101. Of course, the module unit 1 of this embodiment may also include only one battery cell group 101. In this case, the busbar unit 2 is only used to connect the terminal post on one side of the battery cell 1011.

[0073] In some exemplary embodiments, a partition 1012 is sandwiched between two adjacent module units 1, and each cell 1011 has a partition 1012 at both ends in a first preset direction. The partition 1012 separates the individual cells 1011, preventing thermal runaway from spreading to other cells 1011 and thus enhancing the safety of the battery module. Simultaneously, the partition 1012 provides support and positioning, ensuring the regularity of the cell arrangement.

[0074] In specific implementation, the partition 1012 can be a conventional partition 1012 known to those skilled in the art, such as mica board, plastic partition 1012, ceramic partition 1012, etc., which can prevent the spread of thermal runaway to a certain extent.

[0075] It is worth noting that, regarding the battery module of this embodiment, based on the above exemplary embodiments, in specific implementation, as a preferred embodiment, it is still composed of... Figures 1 to 6 As shown in the image.

[0076] The battery module in this embodiment includes a module unit 1 and an integrated busbar disposed on the top of the module unit 1.

[0077] The module unit 1 includes two battery cell groups 101 arranged in a second preset direction and abutting each other. Each battery cell group 101 includes multiple battery cells 1011 arranged in a first direction. A partition 1012 is sandwiched between two adjacent module units 1, and each battery cell 1011 has a partition 1012 at both ends in the first preset direction.

[0078] Furthermore, the integrated busbar includes two busbar units 2 spaced apart, each located on top of one of the two cell groups 101. Each busbar unit 2 includes a busbar support 201 and multiple busbars 202 disposed on the busbar support 201. The busbars 202 are used to connect the terminals of the cell 1011 in the module unit 1. The busbar support 201 has holes for inserting the terminals of the cell 1011, and these holes extend to one side of the busbar support 201 to communicate with the outside, allowing the potting space 4 to extend along a second preset direction into the space between the busbar support 201 and the terminal of the cell 1011.

[0079] Specifically, multiple connectors 5 are spaced apart between adjacent busbar units 2, and foam 501 is attached to the side of the connectors 5 facing the module unit 1. Each busbar unit 2 has a side strip 6 facing the pressure strip 3, and a gap 401 is formed between the side of the busbar unit 2 with the side strip 6 and the pressure strip 3, and a fixing part 7 is provided. The front and rear ends of the busbar unit 2 in a first preset direction are provided with fixing strips 8. The fixing part 7 is fixedly mounted on the busbar bracket 201 of each busbar unit 2, and the fixing strips 8 are connected to the side strips 6.

[0080] Additionally, the pressure strip 3 is located above the contact point of the two battery cell groups 101, and the pressure strip 3, the two busbar units 2, and the top of the two battery cell groups 101 form a potting space 4. The pressure strip 3 is bonded to the connector 5, and the pressure strip 3 is provided with multiple potting holes 301 communicating with the potting space 4.

[0081] The battery module of this embodiment adopts the above design. Through the arrangement of multiple busbar units 2 and pressure strips 3, a space for accommodating the pressure strip 3 is formed between two adjacent busbar units 2. This allows the pressure strip 3, the top of the module unit 1, and the opposite sides of two adjacent busbar units 2 to jointly form a potting space 4 for structural adhesive injection. The potting space 4 helps to limit the thickness and width of the structural adhesive to a certain extent, avoiding waste of structural adhesive while effectively improving the bonding effect between the pressure strip, integrated busbar, and module unit 1, thereby facilitating the improvement of the battery module's mode. The second aspect of this application provides a battery pack, combined with... Figure 7 , Figure 8 As described above, the battery pack includes a housing 9 and a battery module as described above disposed within the housing 9.

[0082] In this embodiment, the battery pack, through the aforementioned battery module arrangement, can limit the thickness and width of the structural adhesive. This avoids adhesive waste and effectively improves the bonding effect between the pressure strip, integrated busbar, and module unit 1. It also facilitates the positioning of the battery module within the battery pack by the pressure strip, thereby improving the overall configuration of the battery pack. Furthermore, in some exemplary embodiments, the housing 9 has a crossbeam 901 extending along a second preset direction, and the crossbeam 901 abuts against the end of the module unit 1 in a first preset direction. The end of the pressure strip 3 has a positioning part, and the crossbeam 901 has a positioning mating part for connecting the positioning part. Through the positioning part and the positioning mating part, the positioning of the battery module within the battery pack can be determined by the pressure strip 3, ensuring the accuracy of module insertion into the housing.

[0083] In a specific implementation, the positioning part includes a through hole 302 at the end of the pressure strip 3, and a fixing member 303 in the through hole 302, and the positioning mating part includes a mounting hole on the crossbeam 901 for connecting the fixing member 303. The fixing member 303 can be a conventional fixing member 303 such as a bolt or rivet.

[0084] The above descriptions are merely some embodiments of this application and are not intended to limit this application. The technical features or structures in the foregoing different embodiments can be arbitrarily combined to form other specific technical solutions as needed. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of the claims of this application.

Claims

1. A battery module, characterized in that: Includes a module unit and an integrated busbar located on top of the module unit; The integrated busbar includes multiple busbar units spaced apart, and pressure strips disposed between two adjacent busbar units; The pressure strip, the top of the module unit, and the two busbar units together form a glue-filling space.

2. The battery module according to claim 1, characterized in that: A connector is provided between adjacent busbar units; The connectors are configured as a plurality of spaced-apart components arranged along a first preset direction, and the connectors are located between the pressure strip and the module unit.

3. The battery module according to claim 2, characterized in that: The pressure strip has a plurality of glue-filling holes spaced apart along the first preset direction, and the glue-filling holes are connected to the glue-filling space.

4. The battery module according to claim 3, characterized in that: The connector is bonded to the pressure strip, and / or the connector has foam abutting the top of the module unit on the side facing the module unit.

5. The battery module according to claim 1, characterized in that: At least one of the busbar units has a side strip on the side facing the pressure strip, and a gap is formed between the side of the busbar unit with the side strip and the pressure strip; The edge strip is located below the pressure strip and extends into the glue-filling space along a second preset direction. The gap is located above the edge strip and communicates with the glue-filling space.

6. The battery module according to claim 5, characterized in that: The busbar unit has a fixing part on one side where the edge strip is located, and the fixing part abuts against the pressure strip; And / or, the busbar unit has a fixing strip on one side where the side strip is provided, the fixing strip is located at the front and rear ends of the busbar unit in a first preset direction, and abuts against the pressure strip.

7. The battery module according to any one of claims 1 to 6, characterized in that: The module unit includes multiple battery cell groups arranged along a second preset direction and abutting each other, and the battery cell group includes multiple battery cells arranged along a first preset direction; The pressure strip is located above the contact point of the two battery cell groups, and the pressure strip, the two busbar units, and the top of the two battery cell groups form the potting space.

8. The battery module according to claim 7, characterized in that: A partition is provided between two adjacent module units, and each of the battery cells is provided with the partition at both ends in a first preset direction.

9. A battery pack, characterized in that: It includes a housing and a battery module disposed within the housing as described in any one of claims 1 to 8.

10. The battery pack according to claim 9, characterized in that: The housing is provided with a crossbeam extending in a second preset direction, and the crossbeam abuts against the end of the module unit in a first preset direction; The end of the pressure strip is provided with a positioning part, and the crossbeam is provided with a positioning mating part for connecting the positioning part.

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