Battery box and battery pack

Abstract

The utility model provides a battery box and a battery pack, and relates to the technical field of batteries. The battery box comprises a box body and a side cover plate, wherein the box body is provided with a containing cavity, a side opening is formed in the peripheral side of the box body, and the side cover plate covers the side opening. The side opening is communicated with the containing cavity, one of the bottom of the box body and the bottom of the side cover plate is provided with a protrusion, the other one of the bottom of the box body and the bottom of the side cover plate is provided with a groove, and the protrusion is arranged in the groove in a penetrating mode so that the bottom of the side cover plate can be connected with the bottom of the box body in a buckled mode. When the battery box provided by the utility model is assembled, screws do not need to be used for connecting the bottom of the side cover plate and the bottom of the box body, and the bottom of the side cover plate and the bottom of the box body can be buckled and connected only by moving the side cover plate from top to bottom to enable the bulges to be arranged in the grooves in a penetrating manner, so that the operation is more convenient, and time and labor are saved.

Description

Technical Field

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

[0002] The information disclosed in this background section is intended only to enhance the understanding of the general background of this disclosure and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art.

[0003] In related technologies, battery packs typically have side covers for the battery compartment, which are then connected to the casing using screws. However, some screws are located at the bottom of the casing, requiring the casing to be lifted or the screws to be tightened when connecting the bottom of the side cover to the bottom of the casing. This process is difficult, time-consuming, and labor-intensive. Utility Model Content

[0004] In view of this, the purpose of this application is to provide a battery box and battery pack, which aims to solve the technical problem of inconvenient battery box assembly in the related art.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0006] In a first aspect, embodiments of this application provide a battery box, comprising:

[0007] The box has a receiving cavity, and a side opening communicating with the receiving cavity is provided on the outer periphery of the box;

[0008] A side cover is provided to seal the side opening. One of the bottom of the box body and the bottom of the side cover is provided with a protrusion, and the other is provided with a groove. The protrusion passes through the groove to achieve a snap-fit ​​connection between the bottom of the side cover and the bottom of the box body.

[0009] In one embodiment of the first aspect, the bottom of the side cover is provided with the protrusion, and the bottom of the housing is provided with the groove.

[0010] In one embodiment of the first aspect, multiple protrusions and grooves are provided, with each pair of adjacent protrusions spaced apart and each pair of adjacent grooves spaced apart, and each protrusion passing through one groove.

[0011] In one embodiment of the first aspect, the battery box further includes a seal that abuts against the bottom of the side cover and the bottom of the box body, the seal having a through hole, and the protrusion passing through the through hole.

[0012] In one embodiment of the first aspect, the side cover includes a plate and a connector connected to each other. The plate covers the side opening, and the connector is located on the side of the plate facing the receiving cavity. At least a portion of the connector passes through the side opening and the receiving cavity. The connector is provided with the protrusion or the groove. The sealing member abuts between the bottom of the housing and the bottom of the connector.

[0013] In one embodiment of the first aspect, the plate extends relative to the connector to form a shielding portion for shielding the seal.

[0014] In one embodiment of the first aspect, the battery box further includes a first fastener, which is disposed on the outer periphery of the box body and connected to the side of the connector.

[0015] In one embodiment of the first aspect, the battery box further includes a top cover plate, the top of the box body is provided with a top opening, the top opening is respectively connected to the side opening and the receiving cavity, the top cover plate is provided to cover the top opening and is respectively connected to the box body and the side cover plate.

[0016] In one embodiment of the first aspect, the battery box further includes a second fastener, which is disposed through the top cover and connected to the top of the side cover;

[0017] And / or, the battery box further includes a third fastener, which is disposed through the top cover plate and connected to the top of the box body.

[0018] Secondly, embodiments of this application provide a battery pack including a plurality of individual batteries and a battery box as described in any of the embodiments of the first aspect above, wherein the plurality of individual batteries are disposed within the receiving cavity.

[0019] The beneficial effects of this application are as follows:

[0020] The battery box provided in this application has a protrusion on one of the bottom of the box body and a groove on the other. Therefore, when assembling the battery box, there is no need to use screws to connect the bottom of the side cover to the bottom of the box body. Simply move the side cover from top to bottom so that the protrusion passes through the groove, and the bottom of the side cover can be fastened to the bottom of the box body. This makes the operation more convenient and saves time and effort.

[0021] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A three-dimensional structural schematic diagram of the battery box in one embodiment of this application is shown;

[0024] Figure 2 It shows Figure 1 Decomposition structure diagram Figure 1 ;

[0025] Figure 3 It shows Figure 1 Decomposition structure diagram Figure 2 ;

[0026] Figure 4 It shows Figure 3 Enlarged structural diagram of region A in the middle;

[0027] Figure 5 A partial structural diagram of the battery box after the top cover is hidden in one embodiment of this application is shown;

[0028] Figure 6 A partial structural diagram of the battery box after concealing the top cover and the box body is shown in one embodiment of this application.

[0029] Explanation of key component symbols:

[0030] 100-Battery box; 110-Box body; 111-Receiving cavity; 112-Side opening; 113-Groove; 114-Top opening; 120-Side cover plate; 121-Plate body; 1211-Shielding part; 122-Connector; 1221-Protrusion; 130-Seal; 131-Through hole; 141-First fastener; 142-Second fastener; 143-Third fastener; 150-Top cover plate. Detailed Implementation

[0031] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0032] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, 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 of this application.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0034] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0035] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] like Figure 1 As shown, in a first aspect, embodiments of this application provide a battery box 100, which relates to the field of battery technology and is mainly used in battery packs, so as to be used in electrical devices such as new energy vehicles, ships, and spacecraft in the form of battery packs.

[0037] Of course, the battery box 100 can also be used in energy storage devices such as energy storage containers and energy storage power stations. No specific restrictions will be placed on the application scenarios of the battery box 100 here.

[0038] like Figures 1 to 3 As shown, the battery box 100 provided in this embodiment includes a box body 110 and a side cover plate 120. The box body 110 has a receiving cavity 111, and a side opening 112 communicating with the receiving cavity 111 is provided on the outer periphery of the box body 110. The side cover plate 120 is provided to cover the side opening 112. One of the bottoms of the box body 110 and the bottom of the side cover plate 120 is provided with a protrusion 1221, and the other is provided with a groove 113. The protrusion 1221 is provided through the groove 113 to achieve a snap-fit ​​connection between the bottom of the side cover plate 120 and the bottom of the box body 110.

[0039] For example, the receiving cavity 111 is used to accommodate multiple battery cells to form a battery pack for use in an electrical device. Of course, when the battery box 100 is used in an energy storage device, the receiving cavity 111 is used to accommodate multiple battery packs or multiple battery modules.

[0040] It is understood that the battery box 100 provided in this embodiment has a protrusion 1221 on one of the bottom of the box body 110 and the bottom of the side cover plate 120, and a groove 113 on the other. In this way, when assembling the battery box 100, there is no need to use screws to connect the bottom of the side cover plate 120 and the bottom of the box body 110. The side cover plate 120 can be moved from top to bottom so that the protrusion 1221 passes through the groove 113, and the bottom of the side cover plate 120 can be fastened to the bottom of the box body 110. The operation is more convenient and saves time and effort.

[0041] like Figure 3 and Figure 4 As shown, in one embodiment, the bottom of the side cover plate 120 is provided with a protrusion 1221, and the bottom of the box body 110 is provided with a groove 113.

[0042] Understandably, during the assembly of the side cover 120, the housing 110 usually remains stationary while the side cover 120 is moved to engage the protrusion 1221 and the groove 113. By placing the protrusion 1221 at the bottom of the side cover 120 and the groove 113 at the bottom of the housing 110, it is easier for operators to align the protrusion 1221 and the groove 113, making it easier for the protrusion 1221 to engage with the groove 113.

[0043] In another embodiment, the bottom of the side cover plate 120 is provided with a groove 113 and the bottom of the box body 110 is provided with a protrusion 1221. This also enables the bottom of the side cover plate 120 to be connected to the bottom of the box body 110 without the use of screws. No specific restrictions are placed on the arrangement of the protrusion 1221 and the groove 113.

[0044] like Figure 4 As shown, in one embodiment, both the protrusion 1221 and the groove 113 are strip-shaped.

[0045] Understandably, the interlocking of the strip-shaped protrusion 1221 and the strip-shaped groove 113 can restrict the relative rotation of the side cover 120 and the box 110, so that the bottom of the side cover 120 and the bottom of the box 110 can be connected more stably, resulting in higher structural stability.

[0046] like Figure 3 and Figure 4 As shown, in one embodiment, multiple protrusions 1221 and grooves 113 are provided, with each pair of adjacent protrusions 1221 spaced apart and each pair of adjacent grooves 113 spaced apart, and each protrusion 1221 passing through one groove 113.

[0047] For example, the number of protrusions 1221 and grooves 113 can be two, three, four, five, six, etc., without any specific limitation.

[0048] It is understandable that by setting multiple protrusions 1221 and multiple grooves 113 at intervals, with each protrusion 1221 passing through a groove 113, the relative rotation of the side cover plate 120 and the box body 110 can be restricted, so that the bottom of the side cover plate 120 and the bottom of the box body 110 can be connected more stably, resulting in higher structural stability.

[0049] like Figures 3 to 5 As shown, in one embodiment, the battery box 100 further includes a sealing member 130, which is disposed between the bottom of the side cover plate 120 and the bottom of the box body 110. The sealing member 130 is provided with a through hole 131, and a protrusion 1221 is disposed through the through hole 131.

[0050] For example, the seal 130 can be a silicone pad, rubber pad, sponge, or other element with elastic conforming ability, without any specific limitation.

[0051] Understandably, since a seal 130 is provided between the bottom of the side cover plate 120 and the bottom of the housing 110, and the protrusion 1221 is provided through the through hole 131 of the seal 130, the seal 130 is restricted from moving relative to the side cover plate 120 and the housing 110. This can effectively seal the connection between the bottom of the side cover plate 120 and the bottom of the housing 110, reducing the possibility of dust and water from the external environment entering the housing 111.

[0052] like Figure 3 , Figure 5 and Figure 6 As shown, the side cover plate 120 further includes a plate body 121 and a connector 122 connected to each other. The plate body 121 is provided to cover the side opening 112. The connector 122 is located on the side of the plate body 121 facing the receiving cavity 111. At least a portion of the connector 122 is provided to pass through the side opening 112 and the receiving cavity 111. The connector 122 is provided with a protrusion 1221 or a groove 113. The sealing member 130 is provided between the bottom of the box body 110 and the bottom of the connector 122.

[0053] It is understood that since at least a portion of the connector 122 is provided through the side opening 112 and the receiving cavity 111, and the seal 130 abuts between the bottom of the housing 110 and the bottom of the connector 122, the contact area between the seal 130 and the side cover 120 and the housing 110 can be increased, thereby improving the sealing effect of the seal 130 on the battery box 100.

[0054] like Figure 6 As shown, further, the plate 121 extends relative to the connector 122 to form a shielding portion 1211, which is used to shield the seal 130.

[0055] Understandably, the shielding part 1211 can withstand some of the impact of the external environment on the seal 130, reduce the negative impact on the seal 130, and thus reduce the risk of seal failure of the seal 130.

[0056] like Figure 1 and Figure 5 As shown, the battery box 100 further includes a first fastener 141, which is disposed on the outer periphery of the box body 110 and connected to the side of the connector 122.

[0057] It is understandable that by reinforcing the side of the connector 122 with the first fastener 141, the connection reliability between the side cover 120 and the housing 110 can be increased, thereby improving the structural stability of the battery box 100.

[0058] like Figure 1 and Figure 2As shown, in one embodiment, the battery box 100 further includes a top cover plate 150. The top of the box body 110 is provided with a top opening 114, which is connected to the side opening 112 and the receiving cavity 111 respectively. The top cover plate 150 is provided to cover the top opening 114 and is connected to the box body 110 and the side cover plate 120 respectively.

[0059] It is understandable that by connecting the top cover 150 and the side cover 120, the top cover 150 and the side cover 120 can form a stable structure, thereby giving the battery box 100 higher structural stability.

[0060] like Figure 1 and Figure 2 As shown, the battery box 100 further includes a second fastener 142, which is disposed through the top cover plate 150 and connected to the top of the side cover plate 120; and / or, the battery box 100 also includes a third fastener 143, which is disposed through the top cover plate 150 and connected to the top of the box body 110.

[0061] It should be noted that, for ease of explanation, the following is defined as Embodiment A: "The battery box 100 further includes a second fastener 142, which is disposed through the top cover plate 150 and connected to the top of the side cover plate 120". The following is defined as Embodiment B: "The battery box 100 further includes a third fastener 143, which is disposed through the top cover plate 150 and connected to the top of the box body 110". The above "and / or" means that this embodiment includes Embodiment A or Embodiment B, or a combination of Embodiment A and Embodiment B.

[0062] It is understandable that reinforcing the top of the side cover 120 with the second fastener 142 can increase the structural stability of the side cover 120, and reinforcing the top cover 150 with the third fastener 143 can increase the structural stability of the top cover 150, thereby improving the overall structural stability of the battery box 100.

[0063] It should be noted that the first fastener 141, the second fastener 142 and the third fastener 143 mentioned above can be selected from components with fastening function such as screws, rivets, pins, and clips, and no specific restrictions are made here.

[0064] Secondly, embodiments of this application provide a battery pack including a plurality of individual batteries and the battery case 100 in any of the embodiments of the first aspect described above.

[0065] For example, a single cell can be a square cell, a cylindrical cell, a pouch cell, etc., without any specific limitations.

[0066] It is understood that since the battery pack provided in this embodiment has the battery box 100 in any of the embodiments of the first aspect described above, it has all the beneficial effects of the battery box 100, which will not be described in detail here.

[0067] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are 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. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0068] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A battery box characterized by, The battery box comprises: a box body having a receiving cavity, a side opening being provided on the outer periphery of the box body and communicating with the receiving cavity; a side cover plate covering the side opening, one of the bottom of the box body and the bottom of the side cover plate being provided with a protrusion, and the other being provided with a groove, the protrusion being arranged in the groove to achieve the snap-fit connection of the bottom of the side cover plate and the bottom of the box body, the side cover plate comprising a plate body and a connecting body connected to each other, the plate body covering the side opening, the connecting body being located on the side of the plate body facing the receiving cavity, at least part of the connecting body being arranged in the side opening and the receiving cavity, the connecting body being provided with the protrusion or the groove, and the plate body being arranged to extend relative to the connecting body to form a shielding portion; a sealing member arranged between the bottom of the box body and the bottom of the connecting body, and the shielding portion being used to shield the sealing member.

2. The battery pack of claim 1, wherein, The bottom of the side cover plate is provided with the protrusion, and the bottom of the box body is provided with the groove.

3. The battery pack of claim 1, wherein, Both the protrusion and the groove are provided with a plurality of protrusions and grooves, respectively, each adjacent two protrusions being arranged at intervals, each adjacent two grooves being arranged at intervals, and each protrusion being arranged in one groove.

4. The battery pack of claim 1, wherein, The sealing member is provided with a through hole, and the protrusion is arranged in the through hole.

5. The battery pack of claim 1, wherein, The battery box further comprises a first fastener arranged on the outer periphery of the box body and connected to the side edge of the connecting body.

6. The battery box according to any one of claims 1 to 5, characterized in that, The battery box further comprises a top cover plate, the top of the box body being provided with a top opening, the top opening communicating with the side opening and the receiving cavity, respectively, the top cover plate covering the top opening and being connected to the box body and the side cover plate, respectively.

7. The battery pack of claim 6, wherein, The battery box further comprises a second fastener arranged on the top cover plate and connected to the top of the side cover plate. And / or, the battery box further comprises a third fastener arranged on the top cover plate and connected to the top of the box body.

8. A battery pack, characterized by, The battery box comprises a plurality of single batteries and the battery box according to any one of claims 1 to 7, the plurality of single batteries being arranged in the receiving cavity.

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