Busbar sealing device and energy storage all-in-one machine

Abstract

The utility model relates to a busbar sealing device and an energy storage all-in-one machine. The sealing device comprises a base; the cover body is suitable for buckling the base; an accommodating groove is formed in the base and / or the cover body; the base is provided with a containing groove, the at least one first flexible part is arranged in the containing groove, each first flexible part is provided with a wire passing groove used for containing a copper bar, each wire passing groove is provided with a groove opening which is opened towards a first direction, after the cover body is connected with the base, the groove opening is closed by the cover body, and the first flexible parts can be stressed to deform. According to the sealing device, by arranging the first flexible part, when the cover body is pressed to the base, the first flexible part deforms in the containing groove, and then the wire passing groove deforms to be attached to the peripheral side of the cable; the wire passing grooves correspond to the busbars, the busbars are fixed more stably, the cover body is detachably connected to the base, and the busbars are convenient to disassemble and assemble.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to busbar sealing devices and integrated energy storage devices. Background Technology

[0002] In today's era, with the continuous progress and vigorous development of society, the intelligentization of many fields such as warehousing, homes, and transportation is particularly noteworthy. Portable consumer electronics are showing an increasingly diversified trend, from the initial smartphones and tablets to today's new energy vehicles, smartwatches, and smart headphones. In the application of these electronic products, the battery, as the energy output terminal, undertakes the crucial task of providing a stable power supply to the devices. The copper busbar structure inside the battery is a key component of the battery system. The busbar structure is mainly responsible for connecting the individual battery cells to form a complete circuit, ensuring smooth current transmission.

[0003] For integrated energy storage systems, the PCS (Power Conversion System) controls the charging and discharging process of the battery, performing AC-DC conversion and directly supplying power to AC loads in the absence of a power grid. Isolating the PCS compartment and the battery compartment is a crucial part of energy storage system design. When the busbar passes between the PCS and battery compartments, a suitable sealing structure is required. In related technologies, the busbar is generally not sealed, or uses a threaded ring seal. This sealing structure is not tight enough, leaving gaps. During battery thermal runaway, a large amount of high-temperature fumes are generated, which may contain corrosive gases and particulate matter. If these fumes enter the PCS compartment through these gaps, they can corrode or contaminate sensitive electronic components within the PCS, leading to equipment failure, electrical short circuits, or even more serious accidents such as fires. Utility Model Content

[0004] Therefore, it is necessary to provide a busbar sealing device and energy storage unit that provides stable and fixed copper busbars and strong sealing performance to address the above-mentioned technical problems.

[0005] On one hand, a busbar sealing device is provided, the sealing device comprising:

[0006] Base;

[0007] The cover is detachably disposed on the base; and

[0008] The base and / or cover are provided with a receiving groove; at least one first flexible member is provided in the receiving groove, each first flexible member is provided with a wire passage for placing copper busbars, the wire passage has a slot opening open in a first direction, after the cover is connected to the base, the cover closes the slot opening, and the first flexible member can be deformed under force.

[0009] In one embodiment, the first flexible member includes a bottom wall and a side wall, one side of the bottom wall and the side wall abutting against the groove wall of the receiving groove and the other side forming the wire passage groove.

[0010] In one embodiment, the base includes a body and partitions, the partitions protruding from the body, and the receiving grooves are formed between adjacent partitions.

[0011] In one embodiment, the base further includes a retaining edge disposed between adjacent partitions and on the side of the receiving groove facing the battery compartment, the edge of the retaining edge being lower than the edge of the wire passage groove.

[0012] In one embodiment, the width of the base tends to increase in the direction away from the cover.

[0013] In one embodiment, the sealing device further includes a second flexible member disposed on the cover facing the receiving groove, and the second flexible member is capable of deformation under force after the cover is connected to the base.

[0014] In one embodiment, the surface of the second flexible member is planar, or the surface of the second flexible member has at least one recessed groove; and / or, the second flexible member is made of silicone or rubber.

[0015] In one embodiment, the first flexible element is made of silicone or rubber.

[0016] In one embodiment, the surface of the cover facing the base is provided with a connecting arm, and the end of the connecting arm is provided with a hook for engaging and connecting the base.

[0017] In one embodiment, the base is provided with a snap-fit ​​groove for detachably connecting with the hook.

[0018] In one embodiment, the base includes a spacer that protrudes to isolate adjacent busbars.

[0019] On the other hand, an integrated energy storage unit is provided, including the busbar sealing device and a compartment wall, the compartment wall being configured to separate the battery compartment and power compartment of the integrated energy storage unit, and the base being disposed on the compartment wall.

[0020] The aforementioned sealing device and energy storage unit, by incorporating a first flexible component, deform within the receiving groove when the cover is pressed against the base. The cable groove adaptively adjusts according to the cable diameter, deforming to fit against the circumference of the cable, forming a continuous contact surface that wraps around the cable. The cable groove corresponds to the busbar, more stably fixing the busbar and preventing damage to the cable through elastic contact while maintaining cable stability. The cover is snapped onto the base, facilitating the assembly and disassembly of the busbar. The aforementioned sealing device, installed on the compartment wall of the integrated energy storage unit, can fix the busbar at a specific position on the compartment wall and seal it along the outer periphery of the busbar, with no gap between it and the busbar, thus isolating the space on both sides of the busbar. When the sealing device is installed inside the battery, it is located between the battery compartment and the power compartment, used to fix and seal the busbar passing through the battery compartment and the power compartment, preventing a large amount of high-temperature smoke generated during battery thermal runaway from entering the power compartment, avoiding corrosion or contamination of the sensitive electronic components in the power compartment, and preventing more serious accidents such as equipment failure, electrical short circuits and fires. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the sealing device and compartment wall according to an embodiment of this application.

[0022] Figure 2 This is a schematic diagram of the structure of a sealing device according to an embodiment of this application.

[0023] Figure 3 This is an exploded structural diagram of a sealing device according to an embodiment of this application.

[0024] Figure 4 This is a schematic diagram of the exploded structure of a sealing device according to an embodiment of this application.

[0025] Explanation of icon numbers:

[0026] 1. Battery compartment; 2. Power compartment; 10. Compartment wall; 20. Busbar; 100. Sealing device; 110. Base; 111. Body; 112. Divider; 1121. Intermediate divider; 1122. End divider; 113. Receiving groove; 114. Edge guard; 115. Folded wall; 116. Abutment platform; 1161. Snap-fit ​​groove; 117. Isolator; 120. Cover; 121. First side; 1211. Fixing groove; 1212. Fixing hole; 122. Second side; 123. Connecting arm; 1231. Hook; 130. First flexible component; 131. Cable routing groove; 132. Bottom wall; 133. Side wall; 140. Second flexible component. Detailed Implementation

[0027] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0028] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0029] Furthermore, where the terms "first" and "second" appear, these terms are 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 with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via 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. Similarly, "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.

[0032] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0033] See Figure 1 , Figure 1 The diagram shows a structural schematic of a busbar sealing device 100 and a compartment wall 10 in one embodiment of this application. The sealing device 100 provided in one embodiment of this application is used to fix cables. In particular, it is located at the compartment wall 10 between the battery compartment 1 and the power compartment 2 (which contains PCS) of the integrated energy storage device. The compartment wall 10 is used to separate the battery compartment 1 and the power compartment 2. The sealing device 100 is used to fix the busbar passing through the battery compartment 1 and the power compartment 2. The sealing device 100 can also be used in other equipment with high sealing requirements.

[0034] See Figure 2 , Figure 2 A schematic diagram of a busbar sealing device 100 according to an embodiment of this application is shown. The sealing device 100 includes a base 110, a cover 120, and at least one first flexible member 130. The base 110 and / or the cover 120 are provided with receiving grooves 113. The cover 120 is detachably disposed on the base 110. At least one first flexible member 130 is disposed within the receiving groove 113. Each first flexible member 130 is provided with a wire passage groove 131 for accommodating copper busbars. The wire passage groove 131 has an opening that opens in a first direction. After the cover 120 is connected to the base 110, the cover 120 closes the opening, and the first flexible member 130 is deformable under force. The first direction is defined as the direction toward the cover 120, or the direction in which the cover 120 closes onto the base. For example, the first direction... Figure 2 The X direction is shown.

[0035] An embodiment of this application also provides an integrated energy storage unit, which includes a compartment wall 10 and a sealing device 100. The compartment wall 10 is used to separate a battery compartment 1 and a power compartment 2. The sealing device 100 is disposed on the compartment wall 10, and the base 110 is disposed on the compartment wall 10.

[0036] The battery compartment is mainly used to house the battery cells, while the power compartment houses the power conversion device. The power conversion device and the battery cells can communicate and transmit power to each other, connected by signal lines and power lines. To prevent thermal runaway of the battery cells from affecting the normal operation of the power conversion device, battery compartment 1 and power compartment 2 must be isolated from each other, and the wiring points also need to be fixed and sealed.

[0037] The aforementioned sealing device 100 and energy storage unit, by setting a first flexible element 130, allow the first flexible element 130 to deform within the receiving groove 113 when the cover 120 is pressed onto the base 110. The cable groove 131 adaptively adjusts according to the cable diameter, thereby deforming to fit against the periphery of the cable, forming a continuous contact surface that wraps around the circumference of the cable. The cable groove 131 corresponds to the busbar 20, more stably fixing the busbar 20. While maintaining the stability of the cable fixation, the elastic contact avoids damage to the cable. The cover 120 is suitable for fastening onto the base 110, facilitating the assembly and disassembly of the busbar 20. The aforementioned sealing device 100 is installed on the compartment wall of the integrated energy storage unit. It can fix the busbar 20 at a specific position on the compartment wall 10 and seal it along the outer periphery of the busbar 20. It is installed without gaps between the sealing device 100 and the busbar 20 to isolate the space on both sides of the busbar 20. When the sealing device 100 is installed inside the battery, it is located between the battery compartment 1 and the power compartment 2. It is used to fix and seal the busbar 20 that passes through the battery compartment 1 and the power compartment 2, so as to prevent a large amount of high-temperature smoke generated during battery thermal runaway from entering the power compartment 2, and to prevent corrosion or contamination of the sensitive electronic components of the power compartment 2, and to prevent more serious accidents such as equipment failure, electrical short circuit and fire.

[0038] In one embodiment, the cover 120 is detachably connected to the base 110 or rotatably fastened to the base 110, so that the cover 120 and the base 110 form a separable and closable connection, which facilitates the disassembly and assembly and fixing of cables.

[0039] In one embodiment, the first flexible member 130 is made of silicone or rubber. Preferably, the rubber material can be nitrile rubber (NBR), silicone rubber, fluororubber (FKM), ethylene propylene diene monomer (EPDM), etc.

[0040] See Figure 3 , 4 , Figure 3 , 4An exploded structural schematic diagram of a busbar sealing device 100 according to one embodiment of this application is shown. In one embodiment, the first flexible member 130 includes a bottom wall 132 and a side wall 133, one side of the bottom wall 132 and the side wall 133 abutting against the groove wall of the receiving groove 113, and the other side forming the wire passage groove 131.

[0041] Specifically, the bottom wall 132 and the side wall 133 are integrally formed. The side wall 133 is vertically disposed at both ends of the bottom wall 132, making the first flexible member 130 have a C-shaped or groove-shaped structure. The side of the bottom wall 132 facing away from the cover 120 abuts against the receiving groove 113, and the side of the side wall 133 facing away from the busbar 20 (the side of the side walls 133 facing away from each other) abuts against the receiving groove 113. The side of the bottom wall 132 facing the cover 120 serves as the bottom of the cable passage 131, and the side of the side wall 133 facing the busbar 20 (the side of the side walls 133 facing each other) serves as the two sides of the cable passage 131. A channel is formed between the two sides of the bottom wall 132 without the side wall 133 and the cover 120 after it is closed, and the busbar 20 passes through this channel.

[0042] In one embodiment, the base 110 includes a body 111 and a partition 112, the partition 112 protruding from the body 111, and the receiving groove 113 being formed between adjacent partitions 112.

[0043] like Figure 3 As shown, the base 110 extends along the direction in which the multiple busbar rows 20 are arranged side by side; that is, the longitudinal direction of the base 110 is defined as the direction in which the multiple busbar rows 20 are arranged side by side. In the longitudinal direction of the base 110, the partition 112 includes two end partitions 1122 located at both ends of the base 110 and an intermediate partition 1121 located between the two end partitions 1122. At least one intermediate partition 1121 is provided, and the number of receiving grooves 113 is equal to the number of intermediate partitions 1121 plus one. The height of the intermediate partition 1121 is less than the height of the end partitions 1122.

[0044] Specifically, each of the multiple receiving slots 113 corresponds one-to-one with the wire passage slot 131 of the first flexible member 130. The receiving slot 113 can be a continuous structure or a segmented structure. Correspondingly, the first flexible member 130 can be a continuous structure or a segmented structure. In this embodiment, the receiving slot 113 is a segmented structure, and the multiple receiving slots 113 are not connected to each other. There are multiple first flexible members 130, each of which is disposed in each receiving slot 113. The side wall 133 of the first flexible member 130 is flush with the upper edge of the receiving slot 113, that is, the side wall 133 of the first flexible member 130 is flush with the upper edge of the partition 112. The opening of each wire passage slot 131 is covered by a cover 120. After the cover 120 is closed, it abuts against the partition 112 and the side wall 133 of the first flexible member 130. Furthermore, the partition 112 has a hollow structure and is a shell shape that protrudes from the main body 111.

[0045] In one embodiment, the base 110 further includes a retaining edge 114, which is disposed between adjacent partitions 112 and on the side of the receiving groove 113 facing the battery compartment 1, with the edge of the retaining edge 114 being lower than the edge of the wire passage groove 131.

[0046] like Figure 3 , 4 As shown, the retaining edge 114 is used to position the first flexible member 130 and restrict the deformation direction of the first flexible member 130. Specifically, the retaining edge 114 is provided on at least one side of the body 111, that is, the retaining edge 114 is provided on the side of the body 111 facing the battery compartment 1, and / or the retaining edge 114 is provided on the side of the body 111 facing the power compartment 2. In this embodiment, the retaining edge 114 is provided on the side of the body 111 facing the battery compartment 1, the retaining edge 114 protrudes from the body 111 and is located on the side outside the receiving groove 113, and the retaining edge 114 is integrally connected with the body 111 and the partition 112.

[0047] The height of the baffle portion 114 protruding from the body 111 is 0.1-3mm, and the edge of the baffle portion 114 is 0.1-5mm lower than the edge of the wire channel 131. In this embodiment, on the side facing the battery compartment 1, the baffle portion 114 and the partition portion 112 form a wire outlet communicating with the wire channel 131; on the side facing the power compartment 2, the partition portion 112 and the body 111 form a wire outlet communicating with the wire channel 131. The busbar 20 passes through the wire outlets on both sides and the wire channel 131. The depth of the wire outlet is greater than the depth of the wire channel 131, so that a portion of the first flexible member 130 can protrude from the wire outlet. After the first flexible member 130 deforms, it partially fills the gap between the wire outlet and the busbar 20.

[0048] In one embodiment, the width of the base 110 increases toward the compartment wall 10 of the hopper.

[0049] like Figure 2 , 3 As shown, specifically, the base 110 body 111 and the partition 112 are integrally formed. The base 110 has an overall trapezoidal shape. On the one hand, the widened base 110 enhances the support stability of the base 110, and on the other hand, it facilitates the setting of a sealing layer on the outside of the sealing device 100. The end partition 1122 serves as the edges at both ends of the base 110, and the outer sides of the end partition 1122 form the two inclined sides of the trapezoid. The length of the cover 120 matches the sum of the lengths of the through groove 131 and the intermediate partition 1121. After the cover 120 is closed, the two ends of the cover 120 are joined to the inner side of the end partition 1122, and the upper surface of the cover 120 is flush with the upper surface of the end partition 1122. The outer corners of the end partition 1122 have a chamfered structure, so that the upper surface of the cover 120 and the chamfered structure surface of the end partition 1122 form a smooth and continuous surface, which facilitates external sealing.

[0050] In one embodiment, the base 110 includes a spacer 117 that protrudes from the body 111 and extends from the body 111 toward the busbar 20 to isolate adjacent busbars 20 and ensure a safe distance between the busbars 20.

[0051] like Figure 4 As shown, in one embodiment, the base 110 includes a folded wall 115, which protrudes from the bottom of the body 111 and is located on the side of the body 111 facing the battery compartment 1 or the power compartment 2. The folded wall 115 is parallel to and abuts against the compartment wall 10, and is perpendicular to the body 111. The folded wall 115 has a through hole for mounting a fastener to connect the support to the compartment wall 10.

[0052] In one embodiment, the sealing device 100 further includes a second flexible member 140, which is disposed on the cover 120 facing the receiving groove 113. After the cover 120 is connected to the base 110, the second flexible member 140 can be deformed under force. The deformation range is within 0.1-5mm, where the edge of the retaining edge 114 is lower than the edge of the wire groove 131. After the busbar 20 is disposed in the wire groove 131, the cover 120 is connected to the base 110. The busbar 20 is surrounded by the second flexible member 140 and the first flexible member 130. The second flexible member 140 and the first flexible member 130 deform under the compression of the cover 120, thus circumferentially sealing the busbar 20.

[0053] Specifically, the second flexible member 140 is attached to one side of the cover 120 facing the base 110, or the cover 120 has a groove on one side facing the base 110, and the second flexible member 140 is disposed in the groove. At this time, at least a part of the second flexible member 140 needs to protrude out of the groove, or the second flexible member 140 is directly formed to one side of the cover 120 facing the base 110.

[0054] The second flexible member 140 is made of the same material as the first flexible member 130. In one embodiment, the second flexible member 140 is made of silicone or rubber. Preferably, the rubber material can be nitrile rubber (NBR), silicone rubber, fluororubber (FKM), ethylene propylene diene monomer (EPDM), etc. Preferably, the polyester material can be polytetrafluoroethylene (PTFE) or polyurethane (PU).

[0055] The second flexible member 140 can be an integral structure or a segmented structure. When the second flexible member 140 is an integral structure, its length is greater than or equal to the sum of the lengths of the receiving groove 113 and the intermediate partition 1121 of the base 110, so as to completely cover all the wire passage grooves 131. When the second flexible member 140 is a segmented structure, there are multiple second flexible members 140, each of which is matched with a wire passage groove 131, and the length of each second flexible member 140 is greater than or equal to the width of the wire passage groove 131, so as to completely cover the wire passage groove 131.

[0056] In one embodiment, the surface of the second flexible member 140 is planar, or the surface of the second flexible member 140 has at least one recessed groove.

[0057] Specifically, when the surface of the second flexible member 140 is planar, the busbar 20 is placed in the cable tray 131, and most of the busbar 20 is surrounded by the first flexible member 130. After the cover 120 is connected to the base 110, the second flexible member 140 and the first flexible member 130 are deformed under the pressure of the cover 120. The planar second flexible member 140 is squeezed out of the groove by the busbar 20 and deforms in the direction of filling the gap of the first flexible member 130. The planar second flexible member 140 can have a larger deformation to tightly seal the busbar 20.

[0058] When the surface of the second flexible member 140 has a groove, the groove is correspondingly provided with the wire passage groove 131. The center of the arc-shaped groove is located outside the groove, and after the groove and the wire passage groove 131 are joined, the radial cross-sectional area of ​​the area enclosed by the groove and the wire passage groove 131 is smaller than the radial cross-sectional area of ​​the busbar 20. The busbar 20 is placed into the wire passage groove 131, and most of the busbar 20 is surrounded by the first flexible member 130. After the cover 120 is connected to the base 110, the second flexible member 140 and the first flexible member 130 deform under the compression of the cover 120 and deform in the direction of filling the gap of the first flexible member 130. The second flexible member 140 with the groove fits more closely to the outer periphery of the busbar 20, and can tightly seal the busbar 20 after deformation.

[0059] like Figure 3 As shown, the intermediate partition 1121 is provided with a groove, the width of which matches the width of the second flexible member 140. After the cover 120 is connected to the base 110, a part of the second flexible member 140 abuts against the first flexible member 130, a part abuts against the busbar 20, and a part passing through the intermediate partition 1121 is disposed in the groove.

[0060] In one embodiment, the surface of the cover 120 facing the base 110 is provided with a connecting arm 123, and the end of the connecting arm 123 is provided with a hook 1231, which is used to engage and connect the base 110.

[0061] like Figure 3 , 4 As shown, the cover 120 has a first side 121 and a second side 122. The first side 121 faces the base 110, and the second side 122 faces away from the base 110. The first side 121 has a fixing groove 1211 and / or a fixing hole 1212. The fixing groove 1211 has a recessed structure, and its shape matches the surface shape of the second flexible member 140 for mounting the second flexible member 140. The side surface of the second flexible member 140 facing away from the fixing groove 1211 protrudes from the edge of the fixing groove 1211. The fixing hole 1212 is located on one side or at the bottom of the fixing groove 1211. The two ends of the second side 122 have chamfered structures. The length of the cover 120 matches the length of the threaded portion, so that the second side 122 forms a smooth, continuous surface with the outer surface of the base 110, facilitating external sealing.

[0062] Specifically, the connecting arm 123 is located on the second side 122 and outside the fixing groove 1211. Multiple connecting arms 123 are provided, for example, four connecting arms 123, arranged in pairs. Each pair is located at both ends of the second side 122 of the cover 120, with the two connecting arms 123 in each pair symmetrically arranged. The connecting arms 123 are located on both sides of the second flexible member 140, perpendicular to the second side 122, and extend a certain distance.

[0063] In one embodiment, the base 110 is provided with a snap-fit ​​groove 1161 for detachably connecting with the snap hook 1231.

[0064] The hook 1231 at the end of the connecting arm 123 is a protrusion on the inner surface of the connecting arm 123 (facing the surface of the second flexible member 140). A locking groove 1161 is recessed in the base 110, forming a stepped structure at its edge. The locking groove 1161 accommodates the hook 1231, which engages with the stepped structure at the edge of the locking groove 1161. Optionally, the locking groove 1161 may be located at the end separator 1122.

[0065] like Figure 4 As shown, the base 110 further includes an abutment platform 116, which protrudes from the body 111 and is located between the end partition 1122 and the receiving groove 113. The height of the abutment platform 116 is less than the height of the end partition 1122. After the cover 120 is closed, the second side 122 of the cover 120 abuts against the abutment platform 116. The width of the abutment platform 116 is less than the width of the end partition 1122, so that the connecting arms 123 are located on both sides of the abutment platform 116. The end of the abutment platform 116 near the body 111 is provided with a locking groove 1161, which is recessed into the abutment platform 116.

[0066] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A busbar sealing device, characterized in that, The sealing device includes: Base; Cover body, adapted to fasten the base; and The base and / or cover are provided with a receiving groove; at least one first flexible member is provided in the receiving groove, each first flexible member is provided with a wire passage for placing copper busbars, the wire passage has a slot opening open in a first direction, after the cover is connected to the base, the cover closes the slot opening, and the first flexible member can be deformed under force.

2. The busbar sealing device according to claim 1, characterized in that, The first flexible member includes a bottom wall and a side wall, one side of the bottom wall and the side wall abutting against the groove wall of the receiving groove, and the other side forming the wire passage groove.

3. The busbar sealing device according to claim 1, characterized in that, The base includes a body and a partition, the partition protruding from the body, and the receiving groove is formed between adjacent partitions.

4. The busbar sealing device according to claim 3, characterized in that, The base also includes a retaining edge portion, which is disposed between adjacent partition portions and located on the side of the receiving groove facing the battery compartment, with the edge of the retaining edge portion lower than the edge of the wire passage groove.

5. The busbar sealing device according to any one of claims 1-4, characterized in that, The width of the base tends to increase in the direction away from the cover.

6. The busbar sealing device according to claim 1, characterized in that, The sealing device further includes a second flexible element, which is disposed on one side of the cover facing the base. After the cover is connected to the base, the second flexible element can be deformed under force.

7. The busbar sealing device according to claim 6, characterized in that, The surface of the second flexible member is planar, or the surface of the second flexible member has at least one recessed groove, and / or the second flexible member is made of silicone or rubber.

8. The busbar sealing device according to claim 1, characterized in that, The surface of the cover facing the base is provided with a connecting arm, and the end of the connecting arm is provided with a hook, which is used to engage and connect with the base.

9. The busbar sealing device according to claim 8, characterized in that, The base is provided with a snap-fit ​​groove for detachably connecting with the snap hook.

10. The busbar sealing device according to claim 1, characterized in that, The base includes a spacer that protrudes outward and is used to isolate adjacent busbars.

11. The busbar sealing device according to claim 1, characterized in that, The first flexible component is made of silicone or rubber.

12. An integrated energy storage unit, comprising the busbar sealing device according to any one of claims 1-11, the integrated energy storage unit further comprising a compartment wall, the compartment wall being configured to separate the battery compartment and the power compartment of the integrated energy storage unit, the base being disposed on the compartment wall.

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