Battery pack shell, battery pack and electric equipment

Abstract

The utility model discloses a battery pack shell, a battery pack and a battery, the battery pack shell comprises: a tray, the tray comprises a plurality of boundary beams, the plurality of boundary beams are used for enclosing to form an accommodating cavity; the cover plate is arranged on the tray in a covering mode to seal the containing cavity, a first groove body suitable for being provided with a first sealing piece and a second groove body suitable for being provided with a second sealing piece are arranged between the cover plate and at least one edge beam, and the second groove body is located on the side, away from the containing cavity, of the first groove body; and the first groove body is communicated with the second groove body. According to the battery pack shell disclosed by the utility model, the first groove body and the second groove body which are communicated are arranged between the at least one edge beam and the cover plate, so that a setting space can be provided for the first sealing element and the second sealing element, and the sealing reliability of the battery pack can be effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of batteries, and more specifically, relates to a battery pack shell, a battery pack having the shell, and an electrical device. Background Art

[0002] In the prior art, the battery pack housing generally includes a tray and a cover plate, and a glue layer is generally provided between the side beam of the tray and the cover plate to seal the battery pack. However, the sealing structure is difficult to meet various working conditions, has low reliability, and is prone to sealing failure. Utility Model Content

[0003] The utility model provides a new technical solution for a battery pack shell, which can at least solve the technical problem of low sealing reliability of the existing battery pack.

[0004] The utility model also provides a battery pack, which includes the battery pack shell.

[0005] The utility model also provides an electrical device, which includes the battery pack.

[0006] According to the first aspect of the utility model, a battery pack shell is provided, comprising: a tray, the tray comprising a plurality of side beams, the plurality of side beams being used to enclose a accommodating cavity; a cover plate, the cover plate being arranged on the tray to close the accommodating cavity, a first groove body suitable for setting a first seal and a second groove body suitable for setting a second seal are arranged between the cover plate and at least one of the side beams, the second groove body being located on a side of the first groove body away from the accommodating cavity, and the first groove body being connected to the second groove body.

[0007] Optionally, a plurality of the side beams form a rectangle, and the first trough body and the second trough body are provided between at least two of the side beams that are oppositely arranged and the cover plate.

[0008] Optionally, the first groove body is formed as a first annular groove extending along the circumference of the tray.

[0009] Optionally, the second groove body is formed as a second annular groove extending along the circumference of the tray.

[0010] Optionally, the surface of the side beam close to the cover plate defines the first slot body and the second slot body.

[0011] Optionally, a first groove or a first protrusion is provided on the side of the cover plate close to the side beam, and the first groove or the first protrusion corresponds to the first groove body; and / or, a second groove or a second protrusion is provided on the side of the cover plate close to the side beam, and the second groove or the second protrusion corresponds to the second groove body.

[0012] Optionally, in the case where the cover plate is provided with the first groove, a third protrusion is provided on the side of the cover plate away from the side beam, the third protrusion corresponds to the position of the first groove, and the first groove extends to the third protrusion; and / or, in the case where the cover plate is provided with the second groove, a fourth protrusion is provided on the side of the cover plate away from the side beam, the fourth protrusion corresponds to the position of the second groove, and the second groove extends to the fourth protrusion.

[0013] Optionally, the first sealing member is a glue sealing layer, which is formed by solidifying glue, and the first groove body includes a glue-applying groove and a glue storage groove distributed along its width direction, wherein the glue-applying groove is connected to the glue storage groove, the depth of the glue storage groove is greater than the depth of the glue-applying groove, and the glue storage groove is suitable for accommodating glue overflowing from the glue-applying groove.

[0014] Optionally, the width of the glue applying groove is W1, the depth of the glue applying groove is H1, the width of the glue storing groove is W2, the depth of the glue storing groove is H2, W1×H1=A×W2×H2, 2≤A≤3.

[0015] Optionally, the battery pack shell further includes at least one fastener, which is used to connect the cover plate and the side beam, and the fastener is located on a side of the second slot body away from the first slot body; or, the fastener is located on a side of the first slot body away from the second slot body.

[0016] According to a second aspect of the utility model, a battery pack is provided, comprising the battery pack shell described in the above embodiment; a first seal, the first seal is arranged in the first groove body, and the first seal is suitable for filling the gap between the cover plate and the side beam; a second seal, the second seal is arranged in the second groove body, and the second seal is arranged to fill the gap between the cover plate and the side beam.

[0017] Optionally, the second sealing member is an elastic sealing layer, and the width of the second groove body is greater than the width of the elastic sealing layer when it is not compressed.

[0018] Optionally, the compression rate of the elastic sealing layer in the thickness direction is 30% to 70%.

[0019] Optionally, the first sealing member and the second sealing member are arranged in close contact with each other.

[0020] According to a third aspect of the present invention, there is provided an electrical device comprising the battery pack described in the above embodiment.

[0021] According to the battery pack shell of the utility model, by arranging the first slot body and the second slot body between at least one side beam and the cover plate, a setting space can be provided for the first seal and the second seal, so that the battery pack can have two sealing structures, and when one of the first seal and the second seal fails, the other can still play a good sealing effect, which can effectively prevent external impurities such as dust and moisture from entering the battery pack shell, thereby ensuring the sealing effect of the battery pack; the first slot body and the second slot body are connected, so that the first seal and the second seal can fit together, so that when the sealing effect of one of the seals fails, the other seal can immediately play a sealing role, which can effectively improve the reliability of the battery pack sealing.

[0022] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0024] Figure 1 is a three-dimensional diagram of a battery pack according to an embodiment of the utility model;

[0025] Figure 2 is a top view of a battery pack according to an embodiment of the present utility model;

[0026] Figure 3 yes Figure 2 Sectional view at midline AA;

[0027] Figure 4 It is a partial structural schematic diagram of a battery pack according to an embodiment of the utility model;

[0028] Figure 5 It is a partial structural schematic diagram of a side beam of a battery pack according to an embodiment provided by the utility model.

[0029] Reference numerals:

[0030] Battery pack 100;

[0031] Tray 10; side beam 11;

[0032] First tank body 111; glue applying tank 111a; glue storage tank 111b;

[0033] A second tank body 112;

[0034] Cover plate 20; Fastener 30;

[0035] A first sealing member 40 ; a second sealing member 50 . DETAILED DESCRIPTION

[0036] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0037] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0038] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0039] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0040] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0041] The battery pack housing according to the embodiment of the utility model is described in detail below with reference to the accompanying drawings.

[0042] like Figures 1 to 5 As shown, the battery pack housing according to the embodiment of the utility model includes: a tray 10 and a cover plate 20.

[0043] Specifically, the pallet 10 includes a plurality of side beams 11, which are used to enclose a receiving cavity. The cover plate 20 is disposed on the pallet 10 to close the receiving cavity. A first groove body 111 suitable for setting a first seal 40 and a second groove body 112 suitable for setting a second seal 50 are provided between the cover plate 20 and at least one side beam 11. The second groove body 112 is located on a side of the first groove body 111 away from the receiving cavity, and the first groove body 111 is connected to the second groove body 112.

[0044] In other words, if Figures 1 to 5 As shown, the battery pack shell according to the embodiment of the utility model is mainly composed of a tray 10 and a cover plate 20, wherein the tray 10 includes a plurality of side beams 11, and a receiving cavity suitable for receiving the battery module can be enclosed by the plurality of side beams 11 and the bottom plate of the tray 10, and the cover plate 20 is covered on the tray 10, and the opening of the receiving cavity can be closed by the cover plate 20.

[0045] In this embodiment, a first slot body 111 and a second slot body 112 are provided between at least one side beam 11 and the cover plate 20. The first slot body 111 and the second slot body 112 extend along the length direction of the side beam, respectively. The width direction of the first slot body 111 and the second slot body 112 is the width direction of the side beam 11. The arrangement positions of the first slot body 111 and the second slot body 112 include but are not limited to the following situations:

[0046] Case 1: The surface of the side beam 11 close to the cover plate 20 is defined with a first groove 111 and a second groove 112;

[0047] Case 2: The surface of the cover plate 20 close to the side beam 11 is defined with a first groove body 111 and a second groove body 112 .

[0048] The first groove body 111 can provide a setting space for the first seal 40, and the second groove body 112 can provide a setting space for the second seal 50, and the second groove body 112 can be arranged on the side of the first groove body 111 away from the accommodating groove, so that two sealing structures can be provided for the battery pack 100 through the first seal 40 and the second seal 50; and the first groove body 111 is connected to the second groove body 112, so that the first seal 40 and the second seal 50 can fit together, so that when the sealing effect of one of the seals fails, the other seal can immediately play a sealing role.

[0049] It should be noted that the arrangement positions of the first slot body 111 and the second slot body 112 can be determined according to the positions in the existing battery pack 100 where the sealing effect is prone to failure, which will not be described in detail in this embodiment.

[0050] Therefore, according to the battery pack shell of the embodiment of the utility model, by setting the first groove body 111 and the second groove body 112 between at least one side beam 11 and the cover plate 20, a setting space can be provided for the first seal 40 and the second seal 50, so that the battery pack 100 can have two sealing structures. When one of the first seal 40 and the second seal 50 fails, the other can still play a good sealing effect, which can effectively prevent external dust, moisture and other impurities from entering the battery pack shell, thereby ensuring the sealing effect of the battery pack 100; the first groove body 111 and the second groove body 112 are connected, so that the first seal 40 and the second seal 50 can fit together, so that when the sealing effect of one of the seals fails, the other seal can immediately play a sealing role, which can effectively improve the sealing reliability of the battery pack 100.

[0051] According to an embodiment of the present invention, a plurality of side beams 11 form a rectangle, and a first slot body 111 and a second slot body 112 are provided between at least two oppositely disposed side beams 11 and the cover plate 20 .

[0052] Specifically, the pallet 10 is substantially formed into a rectangular parallelepiped structure, and the pallet 10 has four side beams 11 , and the four side beams 11 form a rectangle.

[0053] In this embodiment, a first groove body 111 and a second groove body 112 are provided between two oppositely disposed side beams 11 and the cover plate 20 , thereby improving the sealing reliability of the battery pack 100 in the width direction or the length direction.

[0054] Optionally, a first slot body 111 and a second slot body 112 are provided between each side beam 11 and the cover plate 20 .

[0055] In some specific embodiments of the present invention, the first groove body 111 is formed as a first annular groove extending along the circumference of the accommodating groove.

[0056] In order to further improve the sealing reliability of the battery pack 100, the first groove body 111 can be set as a first annular groove extending along the circumference of the tray 10, so that a first seal 40 with an annular structure can be set in the first groove body 111, and then a sealing effect can be played at each position of the circumference of the receiving groove, thereby effectively preventing external impurities such as dust and moisture from entering the battery pack shell.

[0057] According to an embodiment of the present invention, the second groove body 112 is formed as a second annular groove extending along the circumference of the accommodating groove.

[0058] In order to further improve the sealing reliability of the battery pack 100, the second groove body 112 can be set as a second annular groove extending circumferentially of the receiving groove, so that a second seal 50 with an annular structure can be set in the second groove body 112, and then a sealing effect can be played at each position of the circumference of the receiving groove. Cooperating with the first seal 40 with an annular structure, the battery pack 100 can have two sealing structures at each position of the circumference of the receiving groove, which can effectively prevent external dust, moisture and other impurities from entering the battery pack shell, thereby ensuring the sealing effect of the battery pack 100. Moreover, in the event that the sealing effect of one of the seals fails at any position, the other seal can immediately play a sealing role, which can effectively improve the sealing reliability of the battery pack 100.

[0059] In some specific embodiments of the present invention, the surface of the side beam 11 close to the cover plate 20 is defined with a first groove body 111 and a second groove body 112, which is helpful to simplify the structure of the cover plate 20 and facilitate the arrangement of other matching structures on the cover plate 20.

[0060] According to one embodiment of the utility model, a first groove or a first protrusion is provided on the side of the cover plate 20 close to the side beam 11, and the first groove or the first protrusion corresponds to the first groove body 111; and / or, a second groove or a second protrusion is provided on the side of the cover plate 20 close to the side beam 11, and the second groove or the second protrusion corresponds to the second groove body 112.

[0061] That is to say, when the battery pack shell is limited by the first groove body 111 through the side beam 11, the side of the cover plate 20 close to the side beam 11 is provided with a first groove corresponding to the first groove body 111, and the first groove can also provide a certain setting space for the first seal 40, so that a larger size of the first seal 40 can be set, thereby effectively increasing the sealing connection area of ​​the battery pack shell; or, the side of the cover plate 20 close to the side beam 11 is provided with a first protrusion corresponding to the first groove body 111, and the first protrusion can extend into the first groove body 111. The first protrusion can improve the structural strength of the cover plate 20 without affecting the overall size of the battery pack shell.

[0062] When the battery pack shell is limited by the second slot body 112 through the side beam 11, a second groove corresponding to the second slot body 112 is provided on the side of the cover plate 20 close to the side beam 11. The second groove can also provide a certain setting space for the second seal 50, so that a larger-sized second seal 50 can be set, thereby effectively increasing the sealing connection area of ​​the battery pack shell; or, a second protrusion corresponding to the second slot body 112 is provided on the side of the cover plate 20 close to the side beam 11, and the second protrusion can extend into the second slot body 112. The second protrusion can improve the structural strength of the cover plate 20 without affecting the overall size of the battery pack shell.

[0063] In some specific embodiments of the present invention, when the cover plate 20 is provided with a first groove, a third protrusion is provided on the side of the cover plate 20 away from the side beam 11, the third protrusion corresponds to the position of the first groove, and the first groove extends to the third protrusion; and / or, when the cover plate 20 is provided with a second groove, a fourth protrusion is provided on the side of the cover plate 20 away from the side beam 11, the fourth protrusion corresponds to the position of the second groove, and the second groove extends to the fourth protrusion.

[0064] In other words, when the first groove is provided in the cover plate 20, in order to ensure that the first groove has a sufficient depth, the cover plate 20 is provided with a third protrusion on a side away from the side beam 11, and the width of the third protrusion is greater than the width of the first groove, so that the first groove can be extended into the third protrusion, thereby avoiding the first groove being restricted by the thickness of the cover plate 20, and ensuring that the first groove has a sufficient depth;

[0065] When the second groove is provided on the cover plate 20, in order to ensure that the second groove has a sufficient depth, the cover plate 20 is provided with a fourth protrusion on the side away from the side beam 11, and the width of the fourth protrusion is greater than the width of the second groove, thereby ensuring that the second groove can extend into the fourth protrusion, thereby avoiding the second groove being restricted by the thickness of the cover plate 20, and ensuring that the second groove has a sufficient depth.

[0066] In addition, the third protrusion and the fourth protrusion may also be formed as a whole to form a protrusion structure, which may be specifically determined according to actual needs and will not be described in detail in the embodiments.

[0067] In some specific embodiments of the present invention, the first sealing member 40 is a glue sealing layer, which is formed by solidifying glue, and the first groove body 111 includes a glue-applying groove 111a and a glue-storing groove 111b distributed along its width direction, wherein the glue-applying groove 111a is connected to the glue-storing groove 111b, the depth of the glue-storing groove 111b is greater than the depth of the glue-applying groove 111a, and the glue-storing groove 111b is suitable for accommodating glue overflowing from the glue-applying groove 111a.

[0068] In other words, if Figures 3 to 5 As shown, in order to avoid glue overflowing during the assembly process, the first groove body 111 can be set to a glue groove 111a and a glue storage groove 111b distributed along its own width direction, wherein the glue groove 111a is connected with the glue storage groove 111b on one side of the width direction of the side beam 11, and the depth of the glue storage groove 111b is greater than the depth of the glue groove 111a; during assembly, glue can be injected into the glue groove 111a, and when the amount of glue is sufficient, the glue can protrude from the glue groove 111a under the action of its own tension, thereby ensuring that the glue can contact the cover plate 20; when the cover plate 20 is installed, the cover plate 20 contacts the glue and squeezes the glue toward the side beam 11, and the glue overflows to the glue storage groove 111b under the squeezing action of the cover plate 20.

[0069] Therefore, the glue storage groove 111b can accommodate the glue overflowing from the glue application groove 111a, which can effectively prevent the glue from overflowing and ensure that the glue sealing layer can form a predetermined shape.

[0070] Specifically, when the first seal 40 is a glue sealing layer and the second seal 50 is an elastic sealing layer, before the glue sealing layer is cured, the first groove body 111 can provide a certain deformation space for the second seal 50 in its width direction, and before setting the glue sealing layer, it is convenient to install the second seal 50 in the second groove body 112.

[0071] Optionally, the cross-sections of the glue-applying groove 111a and the glue-storing groove 111b are both formed into a rectangular shape, and the glue-applying groove 111a is located on a side of the glue-storing groove 111b away from the elastic sealing layer.

[0072] like Figure 3 As shown, in some optional examples of the present invention, the width of the glue groove 111a is W1, the depth of the glue groove 111a is H1, the width of the glue storage groove 111b is W2, the depth of the glue storage groove 111b is H2, W1, W2, H1, H2 satisfy: W1×H1=A×W2×H2, wherein A is the coefficient of the area of ​​the glue groove 111a to the area of ​​the glue storage groove 111b. In order to control the amount of glue used and to ensure the sealing effect of the glue sealing layer, the range of the coefficient A can be: 2≤A≤3, thereby effectively ensuring that the glue sealing layer can meet the expected effect.

[0073] In some specific embodiments of the present invention, the battery pack shell also includes at least one fastener 30, which is used to connect the cover plate 20 and the side beam 11, and the fastener 30 is located on the side of the second slot body 112 away from the first slot body 111, or the fastener 30 is located on the side of the first slot body 111 away from the second slot body 112.

[0074] Specifically, Figure 5 As shown, the cover plate 20 can be fixedly connected to the side beam 11 by one or more fasteners 30. The fastener 30 can be located on the side of the second slot body 112 away from the first slot body 111, or on the side of the first slot body 111 away from the second slot body 112. Specifically, the fastener 30 can be a screw. A threaded hole suitable for connecting to the first end of the screw is provided on the side of the side beam 11 close to the cover plate 20, and the cover plate 20 is provided with a through hole suitable for the first end of the screw to pass through. During assembly, the first end of the screw passes through the through hole and is threadedly connected to the threaded hole, and the second end of the screw presses the cover plate 20 onto the side beam 11, so that the cover plate 20 around the fastener 30 fits tightly with the side beam 11. Under the action of the fastener 30, the failure rate of the first sealing layer and the second sealing layer can be effectively reduced, thereby improving the sealing reliability of the battery pack 100.

[0075] like Figure 1 and Figure 2 As shown, an embodiment of the utility model further provides a battery pack 100, which includes a battery pack shell, a first seal 40 and a second seal 50 as described in any of the above embodiments, the first seal 40 is arranged in the first groove body 111, and the first seal 40 is suitable for filling the gap between the cover plate 20 and the side beam 11, and the second seal 50 is arranged in the second groove body 112, and the second seal 50 is arranged to fill the gap between the cover plate 20 and the side beam 11.

[0076] Since the battery pack shell according to the embodiment of the present invention has the above technical effects, the battery pack 100 according to the embodiment of the present invention also has the corresponding technical effects, that is, the sealing reliability of the battery pack 100 can be effectively improved.

[0077] According to an embodiment of the present invention, the second sealing member 50 is an elastic sealing layer, and the width of the second groove body 112 is greater than the width of the elastic sealing layer when it is not compressed.

[0078] Specifically, the width of the second groove body 112 is W3, and the second seal 50 is an elastic sealing layer. When the elastic sealing layer is not compressed, that is, when the elastic sealing layer is not installed, the width is W4, W3>W4, for example, W3=W4+5mm, thereby reserving a deformation width for the elastic sealing layer, thereby ensuring the performance of the elastic sealing layer and the reliability of the sealing of the battery pack 100.

[0079] Optionally, the width W4 of the elastic sealing layer when it is not compressed is ≥6 mm. In the present embodiment, the width W4 of the elastic sealing layer when it is not compressed is 9 mm, and the thickness of the elastic sealing layer when it is not compressed is 5 mm. The elastic sealing layer has good sealing performance at this size, and can ensure the reliability of the sealing of the battery pack 100.

[0080] In some specific embodiments of the present invention, the compression rate of the elastic sealing layer in the thickness direction is 40% to 70%. For example, the thickness of the elastic sealing layer when not compressed is 5 mm. After the cover plate 20 and the tray 10 are assembled, the elastic sealing layer is compressed and its thickness is 2.5 mm. At this time, the compression rate of the elastic sealing layer in the thickness direction is 30%.

[0081] The elastic sealing layer adopts the above compression rate to ensure a good sealing effect and the reliability of the sealing of the battery pack 100 even when the glue sealing layer fails.

[0082] According to an embodiment of the present invention, the first sealing member 40 and the second sealing member 50 are disposed in close contact with each other.

[0083] Specifically, the first seal 40 and the second seal 50 are arranged in a close fit with each other in the width direction of the side beam 11 , so that when the sealing effect of one of the seals fails, the other seal can immediately play a sealing role, which can effectively ensure the reliability of the sealing of the battery pack 100 .

[0084] The embodiment of the utility model further provides an electric device, which may be a vehicle, etc., and the electric device includes the battery pack 100 described in any of the above embodiments. Since the battery pack shell according to the embodiment of the utility model has the above technical effects, the electric device according to the embodiment of the utility model also has the corresponding technical effects, that is, the reliability of the sealing of the battery pack 100 can be effectively improved.

[0085] The structures of the battery pack 100 and the electrical equipment according to the embodiment of the utility model are understandable and easy to implement for those skilled in the art, so this embodiment will not be described in detail.

[0086] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A battery pack housing, characterized in that: include: A tray, the tray comprising a plurality of side beams, the plurality of side beams being used to enclose and form a receiving cavity; A cover plate is arranged on the tray to close the accommodating cavity, and a first groove body suitable for setting a first seal and a second groove body suitable for setting a second seal are arranged between the cover plate and at least one of the side beams, the second groove body is located on a side of the first groove body away from the accommodating cavity, and the first groove body is connected to the second groove body.

2. The battery pack housing according to claim 1, characterized in that: The plurality of side beams form a rectangle, and the first trough body and the second trough body are provided between at least two of the side beams that are arranged opposite to each other and the cover plate.

3. The battery pack housing according to claim 1, characterized in that: The first groove body is formed as a first annular groove extending along the circumference of the accommodating cavity.

4. The battery pack housing according to claim 1, characterized in that: The second groove body is formed as a second annular groove extending along the circumference of the accommodating cavity.

5. The battery pack housing according to claim 1, characterized in that: The first slot body and the second slot body are defined on a surface of the side beam close to the cover plate.

6. The battery pack housing according to claim 5, characterized in that: A first groove or a first protrusion is provided on one side of the cover plate close to the side beam, and the first groove or the first protrusion corresponds to the first groove body; and / or, A second groove or a second protrusion is provided on one side of the cover plate close to the side beam, and the second groove or the second protrusion corresponds to the second slot body.

7. The battery pack casing according to claim 6, characterized in that: In the case where the cover plate is provided with the first groove, a third protrusion is provided on a side of the cover plate away from the side beam, the third protrusion corresponds to the position of the first groove, and the first groove extends to the third protrusion; and / or, In the case where the cover plate is provided with the second groove, a fourth protrusion is provided on a side of the cover plate away from the side beam, the fourth protrusion corresponds to the position of the second groove, and the second groove extends to the fourth protrusion.

8. The battery pack housing according to any one of claims 1 to 7, characterized in that: The first sealing member is a glue sealing layer, which is formed by curing glue. The first groove body includes a glue groove and a glue storage groove distributed along its width direction. The glue applying groove is connected to the glue storing groove, the depth of the glue storing groove is greater than the depth of the glue applying groove, and the glue storing groove is suitable for accommodating glue overflowing from the glue applying groove.

9. The battery pack casing according to claim 8, characterized in that: The width of the glue applying groove is W1, the depth of the glue applying groove is H1, the width of the glue storing groove is W2, the depth of the glue storing groove is H2, W1×H1=A×W2×H2, 2≤A≤3.

10. The battery pack housing according to any one of claims 1 to 7, characterized in that: It also includes at least one fastener, which is used to connect the cover plate and the side beam, and the fastener is located on a side of the second slot body away from the first slot body, or the fastener is located on a side of the first slot body away from the second slot body.

11. A battery pack, characterized in that: include: The battery pack housing according to any one of claims 1 to 10; A first sealing member, the first sealing member is arranged in the first groove body, and the first sealing member is suitable for filling the gap between the cover plate and the side beam; A second sealing member is provided in the second groove body, and the second sealing member is provided to fill the gap between the cover plate and the side beam.

12. The battery pack according to claim 11, characterized in that: The second sealing member is an elastic sealing layer, and the width of the second groove body is greater than the width of the elastic sealing layer when it is not compressed.

13. The battery pack according to claim 12, characterized in that: The compression rate of the elastic sealing layer in the thickness direction is 30% to 70%.

14. The battery pack according to any one of claims 11 to 13, characterized in that: The first sealing member and the second sealing member are arranged in close contact with each other.

15. An electrical equipment, characterized in that: A battery pack comprising any one of claims 11-14.

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