Sealing structure and electrical apparatus

Abstract

A sealing structure (100) and an electrical apparatus, relating to the technical field of batteries. The sealing structure (100) is used for sealing gaps between a battery pack box body (110) and an electrical apparatus frame (130). The sealing structure (100) comprises: a first sealing member (165), which extends circumferentially around the upper surface of the battery pack box body (110) and is arranged at a first gap (170) between the upper surface of the battery pack box body (110) and the electrical apparatus frame (130) so as to seal the first gap (170); and a second sealing member (180), which extends circumferentially around the periphery of the battery pack box body (110) and is arranged at a second gap (190) between the battery pack box body (110) and the electrical apparatus frame (130) so as to seal the second gap (190).

Description

Sealing structure and electrical device

[0001] Cross-references

[0002] This application refers to Chinese Patent Application No. 202410069561.0, filed on January 17, 2024, entitled “Sealing Structure and Electrical Device,” which is incorporated herein by reference in its entirety. Technical Field

[0003] The present application relates to the field of battery technology, and in particular to a sealing structure and an electrical device. Background Art

[0004] In the field of new energy vehicle technology, the battery pack can be directly integrated into the electrical device frame, such as the underbody. This integration not only reduces the weight and volume of the battery pack, but also indirectly enhances the structural strength of the electrical device frame, such as the structural members of the underbody.

[0005] In such an integrated structure, there is an installation gap between the battery pack case and the electrical device frame. Sealing this installation gap often leads to a series of problems, such as poor sealing and difficulty in cleaning the sealing interface when replacing or repairing the battery pack case.

[0006] Summary of the Invention

[0007] In view of the above problems, the present application provides a sealing structure and an electrical device, aiming to alleviate, mitigate or eliminate at least one of a series of problems caused by the installation gap between the sealed battery pack box and the electrical device frame.

[0008] An embodiment of the first aspect of the present application provides a sealing structure for sealing the gap between a battery pack case and an electrical device frame, the sealing structure comprising: a first sealing member extending circumferentially along the upper surface of the battery pack case and arranged at the first gap between the upper surface of the battery pack case and the electrical device frame to seal the first gap; and a second sealing member extending circumferentially along the periphery of the battery pack case and arranged at the second gap between the battery pack case and the electrical device frame to seal the second gap.

[0009] The technical solution of the embodiments of the present application utilizes two seals to alleviate, mitigate, or eliminate at least one of a series of problems caused by the gap between the sealed battery pack case and the frame of the electrical device. For example, the improved sealing performance of the inner and outer seals increases the effectiveness of the seal, thereby reducing the possibility of air, water, and sound leaks. In another example, the seals clip onto the battery pack case, making them easy to remove and maintain without requiring cleaning of the sealing interface, thereby alleviating the difficulty of cleaning the sealing interface during battery pack case replacement or repair.

[0010] In some embodiments, the battery pack case is connected to the frame of an electrical device via fasteners. The battery pack case includes an upper cover, the upper surface of which forms a first gap with the frame of the electrical device; and a lower case, which is removably connected to the upper cover. The lower case and the upper cover are each provided with mounting portions for mounting the fasteners, with the upper surfaces of the mounting portions forming a second gap with the frame of the electrical device. By configuring the battery pack case as a removable upper cover and lower case, the manufacturing of the battery pack case can be simplified and reduced in cost.

[0011] In some embodiments, a clip is provided on the upper surface of the upper cover, and the first sealing member includes: a first attachment portion extending circumferentially around the upper surface of the upper cover for attachment to the clip; and a first sealing portion connected to the first attachment portion and extending circumferentially around the upper surface of the upper cover for abutting the electrical device frame. This design allows the first sealing member to be divided into two parts, simplifying the overall structure: one part attaches to the clip on the upper cover, while the other part abuts the electrical device frame to seal the installation gap between the battery pack housing and the electrical device frame.

[0012] In some embodiments, the first attachment portion includes: a first sidewall extending circumferentially around the upper surface of the upper cover; a second sidewall extending circumferentially around the upper surface of the upper cover, located outside and spaced apart from the first sidewall; and a first connecting portion connecting the top end of the first sidewall to the top end of the second sidewall. By designing the first attachment portion into a U-shaped structure, it can be more easily inserted into the connector, resulting in a simple structure and low manufacturing costs.

[0013] In some embodiments, the first sealing portion is disposed on the first connecting portion. In such a design, the head of the first sealing portion can be compressed in the vertical direction to seal the installation gap between the upper surface of the upper cover of the battery pack case and the frame of the electrical device.

[0014] In some embodiments, the first sealing portion is disposed on the first side wall. In such a design, the side of the first sealing portion can be compressed in the vertical direction to seal the installation gap between the upper surface of the upper cover of the battery pack case and the frame of the electrical device.

[0015] In some embodiments, at least one of an inner surface of the first side wall opposite to the second side wall and an inner surface of the second side wall opposite to the first side wall includes a first clamping lip, wherein the first clamping lip is used to clamp the clip when the first attachment portion is attached to the clip. Providing the first clamping lip facilitates more stable clamping of the clip when the first attachment portion is attached to the clip.

[0016] In some embodiments, the second seal comprises: a second attachment portion extending circumferentially along the periphery of the mounting portion for attachment to the edge of the upper cover and the edge of the lower case; and a second sealing portion connected to the second attachment portion and extending circumferentially along the periphery of the mounting portion for abutting the electrical device frame. This design allows the second seal to be divided into two parts, simplifying the overall structure: one part attaches to the edge of the upper cover and the edge of the lower case, while the other part abuts the electrical device frame to seal the installation gap between the battery pack case and the electrical device frame.

[0017] In some embodiments, the second attachment portion includes: a third sidewall extending circumferentially along the periphery of the mounting portion; a fourth sidewall extending circumferentially along the periphery of the mounting portion, located below and spaced apart from the third sidewall; and a second connecting portion connecting an outer end of the third sidewall to an outer end of the fourth sidewall. By designing the second attachment portion into a U-shaped structure, it can be more easily inserted into the edge of the mounting portion, resulting in a simple structure and low manufacturing costs.

[0018] In some embodiments, the second sealing portion is disposed on the third side wall. In such a design, the head of the second sealing portion can be compressed in the vertical direction to seal the installation gap between the edge of the upper cover of the battery pack case and the frame of the electrical device.

[0019] In some embodiments, at least one of an inner surface of the third side wall opposing the fourth side wall and an inner surface of the fourth side wall opposing the third side wall includes a second clamping lip, the second clamping lip being configured to clamp an edge of the mounting portion when the second attachment portion is attached to the mounting portion. Providing the second clamping lip facilitates more stable clamping of the edge of the mounting portion when the second attachment portion is attached to the edge of the mounting portion.

[0020] An embodiment of the second aspect of the present application provides an electrical device, including an electrical device frame and the sealing structure in the above embodiment, wherein the sealing structure is used for sealing between the battery pack case and the electrical device frame.

[0021] Such an electrical device can provide the advantages described above with respect to the sealing structure, which will not be described in detail for the sake of brevity.

[0022] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application. In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on the drawings without paying creative work.

[0024] FIG1 is an exploded schematic diagram of a sealing structure and an electrical device frame according to some embodiments of the present application;

[0025] FIG2 is a top view of the sealing structure and the electrical device frame of FIG1 ;

[0026] 3 is a cross-sectional view of the sealing structure and the electrical device frame taken along section line AA of FIG. 2 ;

[0027] FIG4 is an enlarged schematic diagram of a portion B of FIG3 ;

[0028] FIG5 is a cross-sectional view of a first sealing member according to some embodiments of the present application;

[0029] FIG6 is a cross-sectional view of a second sealing member according to some embodiments of the present application;

[0030] FIG7 is a partial cross-sectional view of a sealing structure and an electrical device frame according to other embodiments of the present application;

[0031] FIG8 is a schematic structural diagram of a vehicle according to some embodiments of the present application.

[0032] Description of reference numerals:

[0033] Sealing structure 100; battery pack case 110; fastener 120; electrical device frame 130; upper cover 140; lower case 150; mounting portion 160; first sealing member 165; first gap 170; second sealing member 180; second gap 190; snap-fit ​​member 300; first attachment portion 400; first sealing portion 410; first side wall 420; second side wall 430; first connecting portion 435; first clamping lip 440; second attachment portion 450; second sealing portion 460; third side wall 470; fourth side wall 480; second connecting portion 490; second clamping lip 495; vehicle 700. DETAILED DESCRIPTION

[0034] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0036] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0037] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0038] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0039] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0040] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0041] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0042] In describing the embodiments of the present application, flow charts are used to illustrate the operations performed by the system according to the embodiments of the present disclosure. It should be understood that the preceding or following operations are not necessarily performed in exact order. Instead, the steps may be processed in reverse order or simultaneously. Furthermore, other operations may be added to these processes, or one or more operations may be removed from these processes.

[0043] Currently, the battery pack case is directly integrated into the electrical device frame, such as the bottom of the vehicle body, to save the structural weight and volume of the battery pack case and enhance the structural strength of the electrical device frame, such as the strength of the structural parts of the bottom of the vehicle body.

[0044] In such an integrated structure, since there is an installation gap between the battery pack case and the electrical device frame, sealing the installation gap may often lead to poor sealing, resulting in air leakage, water leakage and sound leakage. In addition, when the battery pack case is replaced or repaired, the use of sealant may make the sealing interface difficult to clean.

[0045] To alleviate, mitigate, or eliminate at least one of the numerous issues caused by the gap between the sealed battery pack case and the electrical device frame, a dual-sealing seal can be employed. For example, the enhanced sealing performance of the inner and outer seals increases the effectiveness of the seal, thereby reducing the likelihood of air, water, and sound leaks. Another example is that the seals snap onto the battery pack case, making them easy to remove and maintain without requiring cleaning of the sealing interface, thus facilitating replacement or repair of the battery pack case.

[0046] Based on the above considerations, a sealing structure is designed to alleviate, mitigate or eliminate at least one of a series of problems caused by the installation gap between the sealed battery pack box and the electrical device frame by adopting two sealing members.

[0047] The sealing structure disclosed in the embodiment of the present application can be used in batteries. The sealing structure disclosed in the present application can be applied to the power supply system of an electrical device.

[0048] Referring to Figure 1 and further to Figures 2 to 4 , Figure 1 is an exploded schematic diagram of a sealing structure 100 and an electrical device frame 130 according to some embodiments of the present application; Figure 2 is a top view of the sealing structure 100 and the electrical device frame 130 of Figure 1 ; Figure 3 is a cross-sectional view of the sealing structure 100 and the electrical device frame 130 taken along section line AA of Figure 2 ; and Figure 4 is an enlarged schematic diagram of a portion B of Figure 3 .

[0049] The sealing structure 100 is used to seal the gap between the battery pack case 110 and the electrical device frame 130. The sealing structure 100 includes a first sealing member 165 and a second sealing member 180. The first sealing member 165 extends circumferentially around the upper surface of the battery pack case 110 and is disposed in a first gap 170 between the upper surface of the battery pack case 110 and the electrical device frame 130 to seal the first gap 170. The second sealing member 180 extends circumferentially around the periphery of the battery pack case 110 and is disposed in a second gap 190 between the battery pack case 110 and the electrical device frame 130 to seal the second gap 190.

[0050] In the example shown in FIG4 , after the battery pack case 110 is connected to the power-consuming device frame 130, a first gap 170 exists between the upper surface of the battery pack case 110 and the power-consuming device frame 130, and a second gap 190 exists between the battery pack case 110 and the power-consuming device frame 130. After installation, the first seal 165 and the second seal 180 seal the first gap 170 and the second gap 190, respectively. In some embodiments, the second seal 180 is arranged around the outer ring of the first seal 165 when viewed from above.

[0051] According to some embodiments of the present application, at least one of the first sealing member 165 and the second sealing member 180 may include solid rubber, sponge rubber, or the like.

[0052] By employing two seals, it is possible to mitigate, reduce, or eliminate at least one of a number of issues caused by the gap between the battery pack case 110 and the electrical device frame 130. For example, the improved sealing performance of the inner and outer seals increases the effectiveness of the seal, thereby reducing the possibility of air, water, and sound leaks. In another example, the seals snap onto the battery pack case 110, making them easy to remove and maintain, and eliminating the need to clean the sealing interface, thus facilitating replacement or repair of the battery pack case 110.

[0053] Continuing with reference to Figures 1 and 4, according to some embodiments of the present application, the battery pack case 110 is used to be connected to the electrical device frame 130 via a fastener 120. The battery pack case 110 includes an upper cover 140 and a lower case 150. A first gap 170 is formed between the upper surface of the upper cover 140 and the electrical device frame 130. The lower case 150 is detachably connected to the upper cover 140. The periphery of the lower case 150 and the periphery of the upper cover 140 are both provided with an installation portion 160 for installing the fastener 120. A second gap 190 is formed between the upper surface of the installation portion 160 and the electrical device frame 130.

[0054] In the example shown in Figure 4, after the battery pack case 110 is connected to the electrical device frame 130, there is a first gap 170 between the upper surface of the upper cover 140 of the battery pack case 110 and the electrical device frame 130, and there is a second gap 190 between the upper surface of the mounting portion 160 and the electrical device frame 130.

[0055] According to some embodiments of the present application, the fastener 120 may include a bolt, a screw, etc., which is not limited in the present disclosure.

[0056] By providing the battery pack case with a detachable upper cover and lower case, the manufacture of the battery pack case can be simplified and the manufacturing cost can be lowered.

[0057] Please continue to refer to Figure 4. According to some embodiments of the present application, a clip 300 is provided on the upper surface of the upper cover 140. The first sealing member 165 includes a first attachment portion 400 and a first sealing portion 410. The first attachment portion 400 extends circumferentially along the upper surface of the upper cover 140 and is configured to be attached to the clip 300. The first sealing portion 410 is connected to the first attachment portion 400 and extends circumferentially along the upper surface of the upper cover 140 to abut against the electrical device frame 130.

[0058] As shown in FIG4 , an L-shaped clip 300 is provided on the upper surface of the upper cover 140, one end of which is used to clip the first attachment portion 400 of the first sealing member 165. Although FIG4 shows that the clip 300 is L-shaped, it is understood that other shapes of clips are also feasible, and the present disclosure is not limited thereto.

[0059] In the example shown in FIG. 4 , the first sealing portion 410 is elastically deformed when abutting against the electric device frame 130 to seal the first gap 170 .

[0060] According to some embodiments of the present application, the first sealing portion 410 may be hollow or solid.

[0061] In such a design, the first seal can be divided into two parts, and the overall structure is simple. One part is attached to the clip of the upper cover, and the other part is against the electrical device frame to seal the installation gap between the battery pack box and the electrical device frame.

[0062] Please further refer to Figure 5. Figure 5 is a cross-sectional view of the first sealing member 165 according to some embodiments of the present application. According to some embodiments of the present application, the first attachment portion 400 includes a first sidewall 420, a second sidewall 430, and a first connecting portion 435. The first sidewall 420 extends circumferentially around the upper surface of the upper cover 140. The second sidewall 430 extends circumferentially around the upper surface of the upper cover 140, is located outside the first sidewall 420, and is spaced apart from the first sidewall 420. The first connecting portion 435 connects the top end of the first sidewall 420 with the top end of the second sidewall 430.

[0063] In the example shown in FIG. 5 , the first side wall 420 , the second side wall 430 and the first connecting portion 435 located therebetween together form a U-shaped first attachment portion 400 , the notch of which can be used to attach to the clip 300 .

[0064] The second sidewall 430 is located outside the first sidewall 420 . That is, the first sidewall 420 is closer to the edge of the upper cover 140 than the second sidewall 430 .

[0065] In some embodiments, the first sidewall 420, the second sidewall 430, and the first connecting portion 435 may have the same thickness. In some embodiments, the first sidewall 420, the second sidewall 430, and the first connecting portion 435 may have different thicknesses.

[0066] By designing the first attachment portion into a U-shaped structure, it can be more suitably plugged into the clamping member, and has a simple structure and low manufacturing cost.

[0067] According to some embodiments of the present application, the first sealing portion 410 is disposed on the first connecting portion 435 .

[0068] In the example shown in FIG. 4 , the first sealing portion 410 is configured to extend outward from the first connecting portion 435 , and the head of the first sealing portion 410 vertically contacts the frame of the electric device and is elastically compressed.

[0069] In such a design, the head of the first sealing portion can be compressed in the vertical direction to seal the installation gap between the upper surface of the upper cover of the battery pack case and the frame of the electrical device.

[0070] Please further refer to Figure 7 . Figure 7 is a partial cross-sectional view of the sealing structure 100 and the electrical device frame 130 according to some other embodiments of the present application. As shown in Figure 7 , the first sealing portion 410 is disposed on the first sidewall 420 .

[0071] According to some embodiments of the present application, the first sealing portion 410 is configured to extend outward from the first sidewall 420 , and a side portion of the first sealing portion 410 contacts the electrical device frame in a vertical direction and is elastically compressed.

[0072] In such a design, the side of the first sealing portion can be compressed in the vertical direction to seal the installation gap between the upper surface of the upper cover of the battery pack case and the frame of the electrical device.

[0073] 5 , in some embodiments, at least one of the inner surface of the first sidewall 420 opposite to the second sidewall 430 and the inner surface of the second sidewall 430 opposite to the first sidewall 420 includes a first clamping lip 440. The first clamping lip 440 is used to clamp the clip 300 when the first attachment portion 400 is attached to the clip 300.

[0074] 5 , two first clamping lips 440 are provided on the inner surface of the first side wall 420 opposing the second side wall 430, and two first clamping lips 440 are provided on the inner surface of the second side wall 430 opposing the first side wall 420. However, in other embodiments of the first seal 165, each of the inner surface of the first side wall 420 opposing the second side wall 430 and the inner surface of the second side wall 430 opposing the first side wall 420 may be provided with more or fewer first clamping lips than shown in FIG5 .

[0075] Providing the first clamping lip facilitates more stable clamping of the clip when the first attachment portion is attached to the clip.

[0076] 4 , the second sealing member 180 includes a second attachment portion 450 and a second sealing portion 460. The second attachment portion 450 extends circumferentially around the periphery of the mounting portion 160 and is configured to be attached to the edge of the mounting portion 160. The second sealing portion 460 is connected to the second attachment portion 450 and extends circumferentially around the periphery of the mounting portion 160 to abut against the electrical device frame 130.

[0077] In the example shown in FIG. 4 , the second sealing portion 460 is elastically deformed when abutting against the electric device frame 130 to seal the second gap 190 .

[0078] According to some embodiments of the present application, the second sealing portion 460 may be hollow or solid.

[0079] In such a design, the second seal can be divided into two parts with a simple overall structure. One part is attached to the edge of the mounting portion 160 and the other part abuts against the electrical device frame 130 to seal the installation gap between the battery pack case and the electrical device frame.

[0080] Please further refer to Figure 6, which is a cross-sectional view of the second sealing member 180 according to some embodiments of the present application. According to some embodiments of the present application, the second attachment portion 450 includes a third sidewall 470, a fourth sidewall 480, and a second connecting portion 490. The third sidewall 470 extends circumferentially around the periphery of the mounting portion 160. The fourth sidewall 480 extends circumferentially around the periphery of the mounting portion 160, is located below the third sidewall 470, and is spaced apart from the third sidewall 470. The second connecting portion 490 connects the outer end of the third sidewall 470 with the outer end of the fourth sidewall 480.

[0081] In the example shown in Figure 6, the third side wall 470, the fourth side wall 480 and the second connecting portion 490 located between the two together form a U-shaped second attachment portion 450, the notch of the U-shaped second attachment portion 450 can be used to attach to the edge of the mounting portion 160.

[0082] The outer end of the third sidewall 470 refers to the end of the third sidewall 470 that is farther from the geometric center of the ring formed by the third sidewall 470. Similarly, the outer end of the fourth sidewall 480 refers to the end of the fourth sidewall 480 that is farther from the geometric center of the ring formed by the fourth sidewall 480.

[0083] In some embodiments, the wall thicknesses of the third sidewall 470, the fourth sidewall 480, and the second attachment portion 450 may be the same. In some embodiments, the wall thicknesses of the third sidewall 470, the fourth sidewall 480, and the second attachment portion 450 may also be different.

[0084] By designing the second attachment portion into a U-shaped structure, it can be more suitably plugged into the edge of the mounting portion 160 , and has a simple structure and low manufacturing cost.

[0085] 6 , the second sealing portion 460 is disposed on the third sidewall 470 .

[0086] According to some embodiments of the present application, the second sealing portion 460 is configured to extend outward from the third sidewall 470 , and the head of the second sealing portion 460 contacts the electrical device frame in a vertical direction and is elastically compressed.

[0087] In such a design, the head of the second sealing portion can be compressed in the vertical direction to seal the installation gap between the edge of the upper cover of the battery pack case and the frame of the electrical device.

[0088] According to some embodiments of the present application, at least one of the inner surface of the third side wall 470 opposite to the fourth side wall 480 and the inner surface of the fourth side wall 480 opposite to the third side wall 470 includes a second clamping lip 495. The second clamping lip 495 is used to clamp the edge of the mounting portion 160 when the second attachment portion 450 is attached to the mounting portion 160.

[0089] 6 , the inner surface of the third sidewall 470 opposing the fourth sidewall 480 is provided with two first clamping lips 440, and the inner surface of the fourth sidewall 480 opposing the third sidewall 470 is provided with two second clamping lips 495. However, in other embodiments of the second seal 180, each of the inner surface of the third sidewall 470 opposing the fourth sidewall 480 and the inner surface of the fourth sidewall 480 opposing the third sidewall 470 may be provided with more or fewer second clamping lips than shown in FIG6 .

[0090] By providing the second clamping lip, it is helpful to more stably clamp the edge of the mounting portion 160 when the second attaching portion is attached to the edge of the mounting portion 160 .

[0091] According to some embodiments of the present application, referring to FIG. 1 , the present application provides a sealing structure 100 for sealing the gap between a battery pack case 110 and an electrical device frame 130 . The sealing structure 100 includes a first sealing member 165 and a second sealing member 180 . The first sealing member 165 extends circumferentially around the upper surface of the battery pack case 110 and is disposed at a first gap 170 between the upper surface of the battery pack case 110 and the electrical device frame 130 to seal the first gap 170 . The second sealing member 180 extends circumferentially around the periphery of the battery pack case 110 and is disposed at a second gap 190 between the battery pack case 110 and the electrical device frame 130 to seal the second gap 190 . Furthermore, the battery pack case 110 is configured to be connected to the electrical device frame 130 via fasteners 120 . The battery pack case 110 includes an upper cover 140 and a lower case 150 . A first gap 170 is formed between the upper surface of the upper cover 140 and the electrical device frame 130. The lower case 150 is detachably connected to the upper cover 140. The periphery of the lower case 150 and the periphery of the upper cover 140 are both provided with mounting portions 160 for mounting the fasteners 120. A second gap 190 is formed between the upper surface of the mounting portion 160 and the electrical device frame 130. Furthermore, a clip 300 is provided on the upper surface of the upper cover 140. The first sealing member 165 includes a first attachment portion 400 and a first sealing portion 410. The first attachment portion 400 extends circumferentially around the upper surface of the upper cover 140 for attachment to the clip 300. The first sealing portion 410 is connected to the first attachment portion 400 and extends circumferentially around the upper surface of the upper cover 140 for contact with the electrical device frame 130. Furthermore, the second sealing member 180 includes a second attachment portion 450 and a second sealing portion 460. The second attachment portion 450 extends circumferentially around the periphery of the mounting portion 160 for attachment to the edge of the mounting portion 160. The second sealing portion 460 is connected to the second attachment portion 450 and extends circumferentially around the periphery of the mounting portion 160 for abutting against the electrical device frame 130.

[0092] In some embodiments, the electrical device may include an electrical device frame 130 and the sealing structure 100 of the above-described embodiment. The sealing structure 100 is used to seal the battery pack housing 110 and the electrical device frame 130. Examples of electrical devices include, but are not limited to, electric vehicles, ships, and spacecraft. Spacecraft may include, for example, airplanes, rockets, space shuttles, and spacecraft.

[0093] For the convenience of explanation, an electric device according to an embodiment of the present application is taken as an example, a vehicle 700 .

[0094] Please refer to Figure 8, which is a schematic structural diagram of a vehicle in some embodiments of the present application. The vehicle 700 can be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery pack case 110 is provided inside the vehicle 700. The battery pack case 110 can be provided at the bottom of the vehicle 700, that is, on the power device frame 130 at the bottom. In some embodiments, the batteries in the battery pack case 110 can be used to power the vehicle 1100, for example, as an operating power source for the vehicle 700. The vehicle 700 may also include a controller 710 and a motor 720. The controller 710 is used to control the batteries in the battery pack case 110 to power the motor 720, for example, for starting, navigating and driving the vehicle 700.

[0095] In some embodiments of the present application, the batteries in the battery pack box 110 can not only serve as the operating power source of the vehicle 700, but also serve as the driving power source of the vehicle 700, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 700.

[0096] The specific structure and function of the sealing structure 100 for sealing between the battery pack case 110 and the electrical device frame 130 have been described in detail above.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A sealing structure (100) for sealing a gap between a battery pack housing (110) and an electrical device frame (130), comprising: A first seal (165) extending circumferentially around the upper surface of the battery pack housing (110) and disposed at a first gap (170) between the upper surface of the battery pack housing (110) and the electrical device frame (130) to seal the first gap (170); and A second seal (180) extending circumferentially around the periphery of the battery pack housing (110) and disposed at a second gap (190) between the battery pack housing (110) and the electrical device frame (130) to seal the second gap (190).

2. The sealing structure (100) according to claim 1, wherein, The battery pack housing (110) is adapted to be connected to the electrical device frame (130) by fasteners (120), and the battery pack housing (110) includes: An upper cover (140), a first gap (170) being formed between the upper surface of the upper cover (140) and the electrical device frame (130); and A lower housing (150) detachably connected to the upper cover (140); Wherein, mounting portions (160) for mounting the fasteners (120) are provided on the periphery of the lower housing (150) and the periphery of the upper cover (140), and a second gap (190) is formed between the upper surface of the mounting portion (160) and the electrical device frame (130).

3. The sealing structure (100) according to claim 2, wherein, A clamping member (300) is provided on the upper surface of the upper cover (140), and the first seal (165) includes: A first attachment portion (400) extending circumferentially around the upper surface of the upper cover (140) for attachment to the clamping member (300); and A first sealing portion (410) connected to the first attachment portion (400) and extending circumferentially around the upper surface of the upper cover (140) for abutting against the electrical device frame (130).

4. The sealing structure (100) according to claim 3, wherein, The first attachment portion (400) includes: A first side wall (420) extending circumferentially around the upper surface of the upper cover (140); A second side wall (430) extending circumferentially around the upper surface of the upper cover (140), located outside the first side wall (420) and spaced apart from the first side wall (420); and A first connecting portion (435) connecting the top end of the first side wall (420) and the top end of the second side wall (430).

5. The sealing structure (100) according to claim 4, wherein, The first sealing portion (410) is disposed on the first connecting portion (435).

6. The sealing structure (100) according to claim 4, wherein, The first sealing portion (410) is disposed on the first side wall (420).

7. The sealing structure (100) according to any one of claims 4-6, wherein, At least one of the inner surface of the first side wall (420) facing the second side wall (430) and the inner surface of the second side wall (430) facing the first side wall (420) includes a first clamping lip (440) for clamping the clamping member (300) when the first attachment portion (400) is attached to the clamping member (300).

8. The sealing structure (100) according to any one of claims 2-7, wherein, The second seal (180) includes: A second attachment portion (450) that extends circumferentially around the periphery of the mounting portion (160) for attachment to the edge of the mounting portion (160); and A second sealing portion (460) that is connected to the second attachment portion (450) and extends circumferentially around the periphery of the mounting portion (160) for abutting against the electrical device frame (130).

9. The sealing structure (100) according to claim 8, wherein, The second attachment portion (450) includes: A third side wall (470) that extends circumferentially around the periphery of the mounting portion (160); A fourth side wall (480) that extends circumferentially around the periphery of the mounting portion (160), is located below the third side wall (470) and is spaced apart from the third side wall (470); and A second connecting portion (490) that connects the outer end of the third side wall (470) to the outer end of the fourth side wall (480).

10. The sealing structure (100) according to claim 9, wherein, The second sealing portion (460) is provided on the third side wall (470).

11. The sealing structure (100) according to claim 9 or 10, wherein, At least one of the inner surface of the third side wall (470) facing the fourth side wall (480) and the inner surface of the fourth side wall (480) facing the third side wall (470) includes a second clamping lip (495) for clamping the edge of the mounting portion (160) when the second attachment portion (450) is attached to the mounting portion (160).

12. An electrical device (700) includes an electrical device frame (130) and a sealing structure (100) according to any one of claims 1-11, the sealing structure (100) being used for sealing between the battery pack housing (110) and the electrical device frame (130).

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