End cover assembly of battery pack

Abstract

The utility model relates to the technical field of battery packs, and discloses an end cover assembly of a battery pack, which comprises an end cover body, an air switch interface communicated with the outside is arranged on the end cover body, and the air switch interface comprises a first limiting structure and a second limiting structure which are oppositely arranged and vertically connected with the outer wall of the end cover body; and the first shielding piece is rotatably covered on the air switch interface and can seal the air switch interface, one end of the first shielding piece is rotatably connected with the first limiting structure, and the other end of the first shielding piece is connected with the second limiting structure in a buckling manner. The sealing structure has the advantages of being easy to assemble, low in production cost and good in sealing performance.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery pack technical field especially relates to a battery pack's end cover assembly. BACKGROUND

[0002] In the field of new energy storage equipment, the battery pack as the core energy carrier, its protection performance directly affects the safety and service life of the system. The existing battery pack end cover is usually arranged horizontally upward, resulting in various interfaces (such as air switch interface, wireless communication interface, indicator light interface, Ethernet interface, etc.) arranged thereon are directly exposed to the outdoor environment. Especially in rainy and snowy weather or equipment cleaning scene, water flow will form continuous impact along the end cover surface, which constitutes a severe test to the sealing structure of the interface.

[0003] For this, the air switch interface is usually configured with an openable protective cover assembly, and the wireless communication interface, Ethernet interface, etc. are configured with detachable baffles. Such protective cover assemblies and baffles are basically fixed on the end cover by screws to close the interface. Although this design can block most of the frontal water flow, there are still many defects in actual application. First, the independently arranged protective cover assembly needs to be fixed on the end cover by screws before the opening and closing operation, which not only is complicated to install, but also increases the production cost. Second, there are inevitably small gaps between each baffle and the end cover, so that part of the water flow can penetrate into the battery pack through these gaps or screws, thereby affecting the working stability of electronic components and even causing damage. SUMMARY

[0004] In view of the above deficiencies of the prior art, the technical problem to be solved by the utility model is to provide an end cover assembly of a battery pack which is easy to assemble, has low production cost and good sealing performance.

[0005] The utility model solves its technical problems by adopting the technical scheme of an end cover assembly of a battery pack, which comprises:

[0006] An end cover body is provided with an air switch interface in communication with the outside, and the air switch interface comprises a first limiting structure and a second limiting structure arranged opposite to each other and connected perpendicularly to the outer wall of the end cover body.

[0007] A first shielding piece is rotatably closed on the air switch interface and can close the air switch interface, and one end of the first shielding piece is rotatably connected with the first limiting structure, and the other end is snap-connected with the second limiting structure.

[0008] Further, the first limiting structure is provided with a movable hole, one end of the first shielding piece is provided with a rotating shaft rotatably extending into the movable hole, the other end is provided with a protruding part buckled with the second limiting structure, and the protruding part is provided with a first guide surface and a second guide surface oppositely arranged and inclined.

[0009] Further, the side opposite to the first limiting structure of the first shielding piece is provided with a first circular arc surface, and the first shielding piece is provided with a second circular arc surface oppositely arranged with the first circular arc surface.

[0010] Further, the end cover body is provided with a wireless communication interface and an indicator light interface communicating with the outside, the end cover assembly further comprises a second shielding piece and an indicator light module, the second shielding piece is detachably arranged on the end cover body; the indicator light module is detachably arranged on the end cover body and has at least one indicator light penetrating the indicator light interface;

[0011] The first sealing piece is arranged between the second shielding piece and the wireless communication interface, and the second sealing piece is arranged between the indicator light and the indicator light interface, and the first sealing piece and the second sealing piece have elastic deformation amount.

[0012] Further, the wireless communication interface comprises a first groove recessed inward along the outer wall of the end cover body, the second shielding piece is detachably embedded in the first groove, and the top of the second shielding piece is flush with or lower than the outer wall of the end cover body; the side of the second shielding piece facing the wireless communication interface is provided with a second groove arranged along the circumference of the second shielding piece, the first sealing piece is arranged between the second groove and the first groove, and abuts with the inner walls of the second groove and the first groove respectively.

[0013] Further, the height of the first sealing piece is less than the height of the first groove and greater than the height of the second groove, and the height of the first sealing piece after elastic deformation under pressure is 60% of the height of the first groove.

[0014] Further, the second shielding piece is further provided with a fixing hole, the fixing hole is outside the second groove, and a fastener can pass through the fixing hole to detachably fix the second shielding piece in the first groove.

[0015] Further, the end cover body is provided with a fixing structure adjacent to the indicator lamp interface, the indicator lamp module further comprises a lamp holder detachably connected with the fixing structure, the indicator lamp interface comprises a plurality of hollow accommodating structures extending towards the lamp holder from the outer wall of the end cover body, the indicator lamp is provided with a plurality of and corresponds to the accommodating structures one by one, and each indicator lamp is provided with one end penetrating in the accommodating structure and the other end penetrating on the lamp holder; the second sealing element is arranged between the accommodating structure and the lamp holder and has a through hole for the indicator lamp to penetrate, the through hole is in interference fit with the indicator lamp, and when the second sealing element is elastically deformed under pressure, a circumferential sealing layer can be formed between the indicator lamp and the inner wall of the accommodating structure.

[0016] Further, the end cover body is further provided with an Ethernet interface and a third shielding element detachably embedded in the Ethernet interface, the Ethernet interface comprises a third groove and a fourth groove respectively in communication with the outside, the third groove surrounds the fourth groove, and the third groove and the fourth groove have a blocking part therebetween; the third shielding element extends into the third groove.

[0017] Further, the third shielding element comprises a first clamping structure and a second clamping structure, the first clamping structure extends into the third groove, and the second clamping structure extends into the fourth groove; a first clamping part is arranged on the side wall of the fourth groove, a second clamping part is arranged on the second clamping structure, the first clamping part and the second clamping part form a concave-convex fit, and a third guide surface and a fourth guide surface are arranged on the first clamping part in opposite directions and in an inclined manner.

[0018] Compared with the prior art, the utility model has at least the following beneficial effects:

[0019] 1、the first shielding element rotatably covers the air switch interface, and one end of the first shielding element is rotatably connected with the first limiting structure, and the other end is buckled with the second limiting structure. The design rotatably integrates the first shielding element on the air switch interface, compared with the traditional screw fixing mode, reduces the need for additional fasteners, not only reduces the complexity of assembly, but also saves production and maintenance time and cost.

[0020] 2、The utility model discloses a first sealing element is equipped between the second shielding piece and wireless communication interface, and a second sealing element is equipped between the indicator lamp and indicator lamp interface, and the first sealing element can be pressed to produce elastic deformation when the second shielding piece is fixed on the end cover body, and the second sealing element can be pressed to produce elastic deformation when the indicator lamp module is fixed on the end cover body. The design forms seamless sealing at the interface through the elastic deformation of the first sealing element and the second sealing element, can effectively prevent external moisture and dust from invading the battery pack inside through the wireless communication interface and the indicator lamp interface, and significantly improves the sealing performance of the end cover assembly.

[0021] 3、The utility model discloses a first sealing element height is 60% of the first recess height after being pressed, which means that the first sealing element is compressed by 40%. The design can ensure sufficient sealing force while taking into account the durability and adaptability of the sealing element, thereby achieving the best sealing effect. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the end cover assembly of the utility model.

[0023] Figure 2 It is an explosion drawing of the end cover assembly of the utility model.

[0024] Figure 3 It is an explosion drawing of the utility model hidden air switch and Ethernet terminal.

[0025] Figure 4 It is Figure 1 It is a structural schematic diagram of another view.

[0026] Figure 5 It is Figure 4 It is a sectional view at A-A in the utility model.

[0027] Figure 6 It is Figure 4 It is a sectional view at B-B in the utility model.

[0028] Figure 7 It is Figure 4 It is a sectional view at C-C in the utility model.

[0029] In all the drawings, the same reference signs represent the same technical features, specifically:

[0030] 100, end cover body; 110, fixing structure; 200, air switch interface; 210, first limiting structure; 211, movable hole; 212, first circular surface; 213, first limiting edge; 214, second limiting edge; 215, third limiting edge; 216, guide groove; 220, second limiting structure; 221, limiting hole; 300, wireless communication interface; 310, first groove; 400, indicator light interface; 401, hollow containing structure; 410, indicator light module; 411, indicator light; 412, lamp holder; 500, Ethernet interface; 510, third groove; 520, fourth groove; 521, first clamping part; 521a, third guide surface; 521b, fourth guide surface; 530, blocking part; 600, first shielding piece; 610, pivot; 620, convex part; 621, first guide surface; 622, second guide surface; 630, second circular surface; 700, second shielding piece; 710, second groove; 720, fixing hole; 800, third shielding piece; 810, first clamping structure; 820, second clamping structure; 821, second clamping part; 900, first sealing piece; 910, second sealing piece; 911, through hole; 912, annular sealing layer. DETAILED DESCRIPTION

[0031] The following is a specific embodiment of the present application and further describes the technical solution of the present application in combination with the drawings, but the present application is not limited to these embodiments.

[0032] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.

[0033] In addition, the descriptions such as "first", "second", "one" and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0034] In the utility model, unless another definite provision and limitation, the terms "connect", "fix" and the like should do the broad sense understanding, for example, "fix" can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication or the interaction relationship of two elements inside two elements, unless another definite limitation.For the ordinary skilled person in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0035] In addition, the technical solutions of various embodiments of the utility model can be combined with each other, but it must be based on that the ordinary skilled person in the art can realize, when the combination of technical solutions appears mutual contradiction or cannot be realized, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the utility model.

[0036] As Figures 1 to 7 Indicated, in the embodiment, a battery pack end cover assembly, comprising:

[0037] End cover body 100, is provided with the air switch interface 200 that communicates with outside on it, and the air switch interface 200 includes the first limit structure 210 and the second limit structure 220 that are oppositely arranged and are vertically connected with the outer wall of end cover body 100;

[0038] First shielding piece 600, it is rotatably capped on air switch interface 200, and can close air switch interface 200, and first shielding piece 600 one end is rotatably connected with first limit structure 210, and the other end is buckled with second limit structure 220.The design is integrated on air switch interface 200 by rotatably first shielding piece 600, compared with the traditional screw fixing mode, reduces the requirement of additional fastener, not only reduces the complexity of assembly, also saves the time and cost of production and maintenance.

[0039] Specifically, as Figures 1 to 7 Indicated, in the embodiment, a battery pack end cover assembly is assembled on the shell of battery pack, for realizing the connection of electric core and external load.The end cover assembly not only can provide necessary electrical connection function for battery pack, but also can significantly improve the protection performance of battery pack.

[0040] In the embodiment, the end cover assembly includes end cover body 100, and end cover body 100 is the core part of the whole end cover assembly, is directly assembled on the shell of battery pack.The end cover body 100 is provided with a plurality of interfaces, including air switch interface 200, wireless communication interface 300, indicator light interface 400 and Ethernet interface 500 etc..These interfaces are used to realize the connection between electric core and external equipment (such as load, communication module or monitoring system) respectively.

[0041] In the embodiment, the air switch interface 200 has a first gap in the end cover body 100, which is rectangular, for the operating end of the air switch to extend out. This design enables the user to conveniently contact the operating end of the air switch and perform necessary operations, such as opening and closing or adjusting.

[0042] In the embodiment, the air switch interface 200 further comprises a first limiting structure 210 and a second limiting structure 220 arranged oppositely and connected perpendicularly to the outer wall of the end cover body 100, for the first cover 600 to be installed and ensure that it can be stably fixed on the end cover body 100. Preferably, in the embodiment, the first gap is between the first limiting structure 210 and the second limiting structure 220, so that when the first cover 600 is closed, it can effectively cover the first gap and prevent external moisture and dust from entering the inside of the battery pack.

[0043] In the embodiment, the first limiting structure 210 is in the shape of a U, comprising a first limiting edge 213, a second limiting edge 214 and a third limiting edge 215, wherein the first limiting edge 213 is arranged oppositely to the second limiting structure 220, the second limiting edge 214 and the third limiting edge 215 are arranged oppositely and connected perpendicularly to the first limiting edge 213, and the first limiting edge 213, the second limiting edge 214 and the third limiting edge 215 all extend away from the end cover body 100, forming an open U-shaped structure for supporting one end of the first cover 600.

[0044] In the embodiment, the second limiting edge 214 and / or the third limiting edge 215 is / are provided with a movable hole 211 for rotatable connection with the first cover 600, ensuring that the first cover 600 can be flexibly opened and closed. Preferably, in the embodiment, the second limiting edge 214 and / or the third limiting edge 215 is / are provided with a guide groove 216 communicating with the movable hole 211. This design enables the user to efficiently and accurately insert or extract the rotating shaft 610 of the first cover 600 into or out of the movable hole 211 by pushing or pulling it along the direction of the guide groove 216, saving the dependence on traditional screw fixing tools and effectively improving the efficiency and convenience of the installation of the first cover 600.

[0045] In the embodiment, the first limiting edge 213 has a first arc surface 212 on the side opposite to the first cover 600, and the first cover 600 is provided with a second arc surface 630 arranged oppositely to the first arc surface 212. This design ensures the smoothness and stability of the first cover 600 during rotation.

[0046] In the embodiment, the second limiting structure 220 is in the shape of a strip, with a length adapted to that of the first limiting structure 210, and is arranged opposite to the first limiting structure 210 to form a complete support frame, ensuring that the first shielding member 600 remains stable during opening and closing.

[0047] In the embodiment, the second limiting structure 220 extends away from the end cover body 100 and has a limiting hole 221 parallel to the first limiting edge 213. The limiting hole 221 is in the shape of a rectangle, used to form a snap connection with the protrusion 620 of the first shielding member 600, thereby achieving stable fixation of the other end of the first shielding member 600, ensuring the stability of the first shielding member 600 in the closed state.

[0048] In the embodiment, the first shielding member 600 is in the shape of a box, which is rotatably latched on the air switch interface 200 and can enclose the air switch interface 200. This design can completely cover the air switch interface 200, forming a closed space that effectively prevents external moisture, dust and other pollutants from entering the battery pack.

[0049] In the embodiment, one end of the first shielding member 600 is rotatably connected with the movable hole 211 of the first limiting structure 210, and the other end is snap-connected with the limiting hole 221 of the second limiting structure 220. This design enables users to quickly complete the opening and closing operations of the first shielding member 600 through simple pushing and pulling actions without the need for any tools, greatly improving the convenience of operation.

[0050] In the embodiment, the left and right sides of one end of the first shielding member 600 are provided with rotating shafts 610 rotatably extending into the movable hole 211, and the other end is provided with a protrusion 620 snap-connected with the limiting hole 221. This design realizes flexible rotation of the first shielding member 600 through the cooperation of the rotating shafts 610 and the movable hole 211, and ensures the stability and sealing performance of the first shielding member 600 in the closed state through the snap connection of the protrusion 620 and the limiting hole 221.

[0051] Preferably, in the embodiment, the protrusion 620 is provided with a first guide surface 621 and a second guide surface 622 arranged oppositely and obliquely. The first guide surface 621 is mainly used to guide the protrusion 620 to easily enter the limiting hole 221 during closing, and the second guide surface 622 assists the protrusion 620 to quickly exit the limiting hole 221 during opening, thereby achieving smooth operation in both directions and significantly reducing the force required by users during operation. Users only need to gently push or pull the first shielding member 600 to complete the snap connection or disconnection.

[0052] In the embodiment, the end cover body 100 is provided with a wireless communication interface 300 and an indicator light interface 400 which are in communication with the outside. The wireless communication interface 300 is specially used for installing a Bluetooth or WiFi device, so that the battery pack can be seamlessly connected with other smart devices, realizing remote monitoring and data transmission functions. The indicator light interface 400 is used for installing an indicator light module 410, providing intuitive visual feedback for users and helping users quickly understand the working state of the device.

[0053] In the embodiment, the end cover assembly further includes a second shielding piece 700 and an indicator light module 410. The second shielding piece 700 is detachably arranged on the end cover body 100 and can close the wireless communication interface 300. This design can provide additional protection when the wireless communication device is not in use, and the detachable nature of the second shielding piece 700 allows users to flexibly choose to install or remove it according to actual needs, facilitating the inspection or replacement of the wireless communication interface 300, while also reducing maintenance costs. The indicator light module 410 is detachably arranged on the end cover body 100 and has at least one indicator light 411 passing through the indicator light interface 400. This design can be used to provide intuitive state feedback to users, and the detachable design of the indicator light module 410 makes its installation and maintenance more convenient, allowing users to quickly replace damaged indicator lights 411 or upgrade the module, thereby improving the maintainability and service life of the device.

[0054] Due to the inevitable gaps between the second shielding piece 700 and the wireless communication interface 300, and between the indicator light 411 and the indicator light interface 400, in order to prevent external moisture from entering the battery pack, in the embodiment, a first sealing piece 900 is arranged between the second shielding piece 700 and the wireless communication interface 300, and a second sealing piece 910 is arranged between the indicator light 411 and the indicator light interface 400. The first sealing piece 900 and the second sealing piece 910 have an elastic deformation amount, and when the second shielding piece 700 is fixed on the end cover body 100, the first sealing piece 900 is elastically deformed under pressure, and when the indicator light module 410 is fixed on the end cover body 100, the second sealing piece 910 is elastically deformed under pressure. This design forms a seamless seal at the interface through the elastic deformation of the first sealing piece 900 and the second sealing piece 910, effectively preventing external moisture and dust from entering the battery pack through the wireless communication interface 300 and the indicator light interface 400, and significantly improving the sealing performance of the end cover assembly.

[0055] In the embodiment, the wireless communication interface 300 comprises a first groove 310 recessed inward along the outer wall of the end cover body 100, and the second shielding member 700 is detachably embedded in the first groove 310 and is adapted to the size of the first groove 310, and the top of the second shielding member 700 is flush with or lower than the outer wall of the end cover. This design not only improves the convenience of disassembly and maintenance of the second shielding member 700, but also improves the appearance of the end cover assembly.

[0056] In the embodiment, the second shielding member 700 is provided with a second groove 710 arranged along the circumference thereof towards the side of the wireless communication interface 300, and the first sealing member 900 is arranged between the second groove 710 and the first groove 310 and abuts against the inner walls of the second groove 710 and the first groove 310, respectively. This design provides a mounting position for the first sealing member 900, ensuring that the first sealing member 900 can be tightly fitted between the second shielding member 700 and the end cover body 100, thereby effectively filling the gap between the second shielding member 700 and the end cover body 100 and preventing external moisture and dust from entering the interior of the wireless communication interface 300.

[0057] In the embodiment, the first sealing member 900 is annular and adapted to the shape of the second groove 710, and the height of the first sealing member 900 is less than the height of the first groove 310 and greater than the height of the second groove 710, and the height of the first sealing member 900 after elastic deformation under pressure is 60% of the height of the first groove 310, which means that the first sealing member 900 is compressed by 40%. This design can balance the durability and adaptability of the sealing member while ensuring sufficient sealing force, thereby achieving the best sealing effect.

[0058] In the embodiment, the second shielding member 700 is further provided with a fixing hole 720 outside the second groove 710, and a fastener can pass through the fixing hole 720 to detachably fix the second shielding member 700 in the first groove 310. This design ensures the stability of the connection between the second shielding member 700 and the end cover body 100 while avoiding the penetration of external water flow into the battery pack through the fastener, further improving the sealing performance of the end cover assembly.

[0059] In the embodiment, the first groove 310 is further provided with a first positioning part, and the second shielding member 700 is provided with a second positioning part, the first positioning part and the second positioning part form a concave-convex fit, and both the first positioning part and the second positioning part are outside the second groove 710. This design is a foolproof design that ensures the correct installation and stable fixation of the second shielding member 700 and prevents potential problems caused by misoperation.

[0060] Preferably, in the embodiment, the first positioning part is a triangular protrusion, and the second positioning part is a V-shaped groove.

[0061] In the embodiment, the first seal 900 and the second seal 910 are made of elastic material (such as rubber or silicone), have good elasticity and weather resistance, and can maintain stable sealing performance under various environmental conditions, ensuring long-term reliability.

[0062] In the embodiment, the indicator interface 400 includes a plurality of hollow accommodating structures 401 extending along the outer side of the end cover body 100 to the direction of the lamp holder 412, which are in a cylindrical shape and have a diameter greater than that of the individual indicator 411, for allowing the plurality of indicators 411 to respectively extend out, and also for sealing with the second seal 910.

[0063] In the embodiment, the indicator module 410 further includes the lamp holder 412 detachably connected with the fixing structure 110, and the plurality of indicators 411 are provided and correspond to the accommodating structures one by one, and each indicator 411 has one end penetrating in the accommodating structure and the other end penetrating on the lamp holder 412. This design ensures that each indicator 411 can be accurately installed at the specified position, avoiding functional failure caused by misalignment or looseness.

[0064] To realize the fixation of the indicator module 410, in the embodiment, the end cover body 100 is provided with the fixing structure 110 adjacent to the indicator interface 400, which is in a columnar shape, vertically arranged on the side of the end cover body 100 away from the second shielding member 700, and extends away from the end cover body 100, and forms detachable connection with the lamp holder 412 through fasteners.

[0065] In the embodiment, the second seal 910 is arranged between the accommodating structure and the lamp holder 412, and has a through hole 911 for the indicator 411 to pass through, which forms an interference fit with the indicator 411 to avoid moisture and dust from the outside penetrating along the gap between the through hole 911 and the indicator 411. When the second seal 910 is elastically deformed under pressure, it can form a circumferential sealing layer 912 between the indicator 411 and the inner wall of the accommodating structure, thereby effectively filling the gap between the indicator 411 and the indicator interface 400, preventing external moisture and dust from penetrating through the indicator interface 400.

[0066] Preferably, in the embodiment, the second seal 910 is in an L shape to avoid interference with the fixing structure 110.

[0067] In the embodiment, the end cover body 100 is further provided with an Ethernet interface 500 and a third shielding piece 800 detachably embedded in the Ethernet interface 500. Although the third shielding piece 800 can protect the Ethernet interface 500, there is still a small gap between them, and external moisture can still enter the Ethernet interface 500. To this end, in the embodiment, the Ethernet interface 500 includes a third groove 510 and a fourth groove 520 arranged along the circumference thereof and respectively in communication with the outside, the third groove 510 surrounds the fourth groove 520, and there is a blocking part 530 between the third groove 510 and the fourth groove 520, and the third shielding piece 800 extends into the third groove 510. By providing the blocking part 530 between the third groove 510 and the fourth groove 520, the water flow along the third shielding piece 800 is collected in the third groove 510, effectively preventing external moisture and dust from entering the inside of the Ethernet interface 500, and significantly improving the waterproof and dustproof level.

[0068] In the embodiment, the third shielding piece 800 includes a first clamping structure 810 and a second clamping structure 820, the first clamping structure 810 extends into the third groove 510, and the second clamping structure 820 extends into the fourth groove 520; and the fourth groove 520 side wall is provided with a first clamping part 521, and the second clamping structure 820 is provided with a second clamping part 821, and the first clamping part 521 and the second clamping part 821 form a concave-convex cooperation. Among them, the first clamping structure 810 is mainly used for preliminary positioning, and the third shielding piece 800 is stably embedded in the third groove 510, and the second clamping structure 820 further cooperates with the first clamping part 521 in the fourth groove 520 to provide additional fixing function, reduce the use of screws, and further improve the waterproof performance.

[0069] Preferably, in the embodiment, the second clamping structure 820 is provided with a plurality of second clamping structures 820, at least one of which is provided with a second clamping part 821, wherein the second clamping part 821 is a rectangular clamping groove, the first clamping part 521 is a triangular protrusion, and the first clamping part 521 is provided with a third guide surface 521a and a fourth guide surface 521b facing opposite and arranged obliquely. This design not only improves the accuracy and stability of the installation of the third shielding piece 800, but also further simplifies the operation process and enhances the protection performance of the overall system.

Claims

1. An end cap assembly for a battery pack, characterized in that, include: An end cap body (100) is provided with an air switch interface (200) communicating with the outside. The air switch interface (200) includes a first limiting structure (210) and a second limiting structure (220) arranged opposite to each other and perpendicularly connected to the outer wall of the end cap body (100). The first shield (600) is rotatably covered on the air switch interface (200) and can close the air switch interface (200). One end of the first shield (600) is rotatably connected to the first limiting structure (210), and the other end is snapped to the second limiting structure (220).

2. The end cap assembly of a battery pack according to claim 1, characterized in that, The first limiting structure (210) is provided with a movable hole (211), and one end of the first blocking member (600) is provided with a rotating shaft (610) that can be rotatably extended into the movable hole (211), and the other end is provided with a protrusion (620) that is snapped into the second limiting structure (220). The protrusion (620) is provided with a first guide surface (621) and a second guide surface (622) that are arranged in opposite directions and at an inclination.

3. The end cap assembly of a battery pack according to claim 1, characterized in that, The first limiting structure (210) has a first arc surface (212) on the side opposite to the first blocking member (600), and the first blocking member (600) is provided with a second arc surface (630) arranged opposite to the first arc surface (212).

4. The end cap assembly of a battery pack according to claim 1, characterized in that, The end cap body (100) is provided with a wireless communication interface (300) and an indicator light interface (400) for communicating with the outside. The end cap assembly also includes a second shield (700) and an indicator light module (410). The second shield (700) is detachably disposed on the end cap body (100). The indicator light (411) module is detachably disposed on the end cap body (100) and has at least one indicator light (411) passing through the indicator light interface (400). A first sealing element (900) is provided between the second shielding element (700) and the wireless communication interface (300), and a second sealing element (910) is provided between the indicator light (411) and the indicator light interface (400). The first sealing element (900) and the second sealing element (910) have elastic deformation.

5. The end cap assembly of a battery pack according to claim 4, characterized in that, The wireless communication interface (300) includes a first groove (310) recessed inward along the outer wall of the end cap body (100), and a second shielding member (700) is detachably embedded in the first groove (310), with the top of the second shielding member (700) flush with or lower than the outer wall of the end cap body (100); the second shielding member (700) has a second groove (710) arranged circumferentially on the side facing the wireless communication interface (300), and a first sealing member (900) is disposed between the second groove (710) and the first groove (310), and abuts against the inner walls of the second groove (710) and the first groove (310) respectively.

6. The end cap assembly of a battery pack according to claim 5, characterized in that, The height of the first seal (900) is less than the height of the first groove (310) and greater than the height of the second groove (710), and the height of the first seal (900) after elastic deformation under pressure is 60% of the height of the first groove (310).

7. The end cap assembly of a battery pack according to claim 5, characterized in that, The second shielding member (700) is also provided with a fixing hole (720), which is located outside the second groove (710), and the fastener can pass through the fixing hole (720) to detachably fix the second shielding member (700) in the first groove (310).

8. The end cap assembly of a battery pack according to claim 4, characterized in that, The end cap body (100) is provided with a fixing structure (110) adjacent to the indicator light interface (400). The indicator light module (410) also includes a lamp holder (412) detachably connected to the fixing structure (110). The indicator light interface (400) includes a plurality of hollow receiving structures (401) extending along the outer wall of the end cap body (100) toward the lamp holder (412). The indicator lights (411) are provided in a plurality of configurations, each corresponding to one of the receiving structures. 11) One end is inserted into the receiving structure and the other end is inserted into the lamp holder (412); the second sealing member (910) is disposed between the receiving structure and the lamp holder (412) and has a through hole (911) through which the indicator light (411) passes. The through hole (911) and the indicator light (411) form an interference fit. When the second sealing member (910) is subjected to pressure and elastic deformation, it can form an circumferential sealing layer (912) between the indicator light (411) and the inner wall of the receiving structure.

9. The end cap assembly of a battery pack according to claim 1, characterized in that, The end cap body (100) is also provided with an Ethernet interface (500) and a third shield (800) detachably embedded in the Ethernet interface (500). The Ethernet interface (500) includes a third groove (510) and a fourth groove (520) that are respectively connected to the outside. The third groove (510) surrounds the fourth groove (520), and there is a blocking part (530) between the third groove (510) and the fourth groove (520). The third shield (800) extends into the third groove (510).

10. The end cap assembly of a battery pack according to claim 9, characterized in that, The third blocking member (800) includes a first snap-fit ​​structure (810) and a second snap-fit ​​structure (820). The first snap-fit ​​structure (810) extends into the third groove (510), and the second snap-fit ​​structure (820) extends into the fourth groove (520). The fourth groove (520) has a first snap-fit ​​portion (521) on its side wall, and the second snap-fit ​​structure (820) has a second snap-fit ​​portion (821). The first snap-fit ​​portion (521) and the second snap-fit ​​portion (821) form a concave-convex fit. The first snap-fit ​​portion (521) has a third guide surface (521a) and a fourth guide surface (521b) that face opposite directions and are arranged at an inclination.

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