Battery support, battery assembly and robot sweeper

Abstract

The application relates to the technical field of household appliances, and discloses a battery support, a battery assembly and a sweeping robot. The battery support is used for mounting a battery module. The battery module comprises two groups of battery units. The battery support comprises a first support and a second support which are detachably matched. The first support and the second support form a supporting part and a limiting part after butt joint. The supporting part is located in the gap between the two groups of battery units and is adapted to provide support for the limiting part. The limiting part is located on both sides of the supporting part and is adapted to accommodate at least part of the structure of the two groups of battery units respectively. The application provides that the battery units are limited and fixed through the first support and the second support, the battery units are convenient to disassemble and assemble, the gap between the two groups of battery units is fully utilized, and the problems of large volume and large space occupation of a traditional battery are solved. In addition, the battery module is mounted through the battery support, the battery is easier to heat, and the heat dissipation effect is better.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, specifically to battery brackets, battery components, and robotic vacuum cleaners. Background Technology

[0002] Most battery modules on the market are used by connecting multiple batteries in series and parallel. They are usually fixed by wrapping the entire battery module with a plastic shell. This not only makes the battery module large and takes up a lot of space, but the fully enclosed plastic shell also makes it difficult to disassemble and assemble the battery module, and it is also difficult to dissipate heat well during operation. Summary of the Invention

[0003] In view of this, the present invention provides a battery bracket, a battery assembly, and a robotic vacuum cleaner to solve the problems of large space occupation, difficult disassembly and assembly, and difficult heat dissipation of existing battery modules.

[0004] In a first aspect, the present invention provides a battery bracket for mounting a battery module, the battery module including two sets of battery cells, the battery bracket including a bracket body, the bracket body including a first bracket and a second bracket that are detachably coupled, the first bracket and the second bracket being able to form a support portion and a limiting portion for holding and limiting the battery cells after being mated and fastened; wherein, the support portion is located in the gap between the two sets of battery cells and is adapted to provide support for the limiting portion, the limiting portion is located on both sides of the support portion and is adapted to respectively accommodate at least a portion of the structure of the two sets of battery cells to limit the battery cells.

[0005] In one alternative implementation, the first bracket and the second bracket are snapped together.

[0006] In one alternative embodiment, the support is provided with a clearance portion suitable for avoiding external components.

[0007] In one optional embodiment, the limiting part includes limiting arms fixedly disposed on both sides of the support part.

[0008] In one optional embodiment, both the first bracket and the second bracket include two sets of limiting arms disposed on both sides of the support portion; the limiting arms of the first bracket and the limiting arms of the second bracket are distributed on opposite sides of the bracket body after the first bracket and the second bracket are fastened together.

[0009] In one alternative embodiment, the battery cell includes a cylindrical battery, and two sets of the battery cells are adapted to be arranged sequentially in a direction parallel to the central axis of the cylindrical battery, wherein the extension direction of the limiting arm is parallel to the axial direction of the cylindrical battery.

[0010] In one alternative embodiment, each group of battery cells includes a plurality of cylindrical batteries arranged side by side, and the limiting arm is embedded in the gap formed between two adjacent cylindrical batteries, and the limiting arm abuts against the two cylindrical batteries respectively.

[0011] In one optional embodiment, the limiting arm of the first bracket and the limiting arm of the second bracket are engaged and limited on opposite sides of the cylindrical battery, and the outer wall surface of each limiting arm does not exceed the common tangent of the two adjacent cylindrical batteries.

[0012] In one optional embodiment, the limiting arm is adapted to limit the battery cell in the vertical direction, and the limiting part further includes a limiting rib, which is fixedly disposed on the inner side of the limiting arm and adapted to be inserted into the gap formed between two adjacent cylindrical batteries to limit the battery cell in the horizontal direction.

[0013] In one optional embodiment, the limiting ribs include two limiting ribs that are spaced apart from each other. Both limiting ribs are inserted into the gap formed between two adjacent cylindrical batteries and abut against the two inner sides of the two adjacent cylindrical batteries respectively.

[0014] In one optional embodiment, the limiting arm is provided with multiple sets of limiting ribs at intervals along its length.

[0015] In one optional embodiment, the limiting arm is provided with a limiting rib at one end near the support portion, and the limiting rib is a triangular reinforcing plate fixedly connected between the limiting arm and the support portion.

[0016] In one optional embodiment, the length of the limiting arm is not less than the length of a single battery cell, and the limiting part further includes a limiting baffle, which is fixedly disposed at the end of the limiting arm away from the support part, and is adapted to seal the outer sides of both ends of the two sets of battery cells after the first bracket and the second bracket are docked and engaged.

[0017] In one optional embodiment, the two limiting baffles at both ends of the first bracket are respectively provided with a first snap-fit ​​structure, and the two limiting baffles at both ends of the second bracket are respectively provided with a first snap-fit ​​structure suitable for snap-fitting with the first snap-fit ​​structure.

[0018] In one optional embodiment, the support portion includes a first support half located in the middle of the first bracket and a second support half located in the middle of the second bracket; the first support half is provided with a second snap-fit ​​structure, and the second support half is provided with a corresponding second snap-fit ​​structure suitable for snap-fitting with the second snap-fit ​​structure.

[0019] In one alternative embodiment, one of the first support half and the second support half is provided with a positioning rib, and the other is provided with a positioning slot that mates with the positioning rib.

[0020] In one optional embodiment, one of the first support half and the second support half is provided with a plurality of guide posts at intervals, and the other is provided with a plurality of guide slots, with the plurality of guide slots and the plurality of guide posts being inserted and engaged in a one-to-one correspondence.

[0021] In one alternative embodiment, the two sets of battery cells are connected in series, and the support portion is provided with a wiring structure that allows the connection lines of the two sets of battery cells to pass through.

[0022] In one optional embodiment, the wire-passing structure includes a first semi-open groove disposed on the first support half and a second semi-open groove disposed on the second support half. The first semi-open groove and the second semi-open groove form a circumferentially closed through groove with open ends after the first bracket and the second bracket are mated together.

[0023] Secondly, the present invention also provides a battery assembly, including a battery module and a battery bracket as described in any of the above embodiments, wherein the battery module includes two sets of battery cells and the battery module is mounted on the battery bracket.

[0024] In one alternative embodiment, the battery assembly further includes an insulating sleeve adapted to clamp and wrap around the outer periphery of the battery cell after the first and second supports of the battery bracket are mated and engaged, so as to reinforce the connection between the battery cell and the bracket body.

[0025] In one alternative embodiment, the battery assembly further includes a pull strap fixed to the outer wall of the insulating sleeve, the pull strap having a lifting portion for user lifting operation.

[0026] Thirdly, the present invention also provides a sweeping robot, including a bottom shell and a battery assembly, wherein the battery assembly is disposed inside the bottom shell, and the battery assembly is the battery assembly described in any of the above embodiments.

[0027] In one alternative embodiment, the robot vacuum cleaner further includes a swivel wheel mounted on the bottom shell and located on one side of the battery assembly. The swivel wheel is positioned near the center of the battery assembly, and the support portion of the battery bracket is recessed on the side near the swivel wheel to form a clearance portion that can accommodate part of the swivel wheel.

[0028] The present invention has the following advantages:

[0029] 1. The battery bracket provided by this invention splits the battery module into two sets of battery units, and installs the two sets of battery units through detachable first and second brackets, making battery installation and removal more convenient and quick. After the first and second brackets are mated and fastened, they form a support part and a limiting part for holding and limiting the battery units. The support part is located in the gap between the two sets of battery units and is suitable for providing support for the limiting part, thereby making full use of the gap between the two battery units and solving the problem of large size and large space occupation of traditional batteries. In addition, by limiting and fixing the battery units through the limiting parts of the first and second brackets, compared with fixing the entire battery module by wrapping it with a plastic shell, the battery units are easier to dissipate heat around them, resulting in better heat dissipation and effectively solving the problem of difficult heat dissipation of traditional batteries.

[0030] 2. The first and second brackets of the battery bracket provided by the present invention are snapped together to connect and fix the two sets of battery units. The connection structure is simple, easier to disassemble and assemble, and the connection is reliable and stable, effectively solving the problems of complex structure, weak and unstable structure of existing battery brackets.

[0031] 3. The battery bracket provided by this invention, while ensuring the structural strength of the battery bracket, effectively solves the problem of the battery assembly easily conflicting with the positions of other components by setting a clearance part on the support part in the middle of the battery bracket to avoid interference with adjacent components, thereby maximizing space utilization. For example, in a robotic vacuum cleaner, a caster wheel needs to be placed on one side of the battery assembly. By setting a clearance part on the support part in the middle of the battery bracket, the caster wheel can be cleverly avoided, improving the utilization rate of the internal space of the robotic vacuum cleaner.

[0032] 4. The battery holder provided by this invention includes limiting arms fixedly disposed on both sides of the support portion. These limiting arms effectively limit the battery while minimizing obstruction of the battery cells, thus facilitating heat dissipation and improving heat dissipation efficiency. Furthermore, the limiting arms are embedded in the gap between two adjacent cylindrical batteries. The dimensions and shape of the limiting arms in the width direction are designed according to the gap between the two adjacent cylindrical batteries, and the outer wall of the limiting arms does not exceed the outer peripheral wall of the battery cells, resulting in a more compact, robust, and smaller overall structure.

[0033] 5. The battery holder provided by the present invention has a limiting arm adapted to limit the battery unit in the vertical direction. The limiting part also includes a limiting rib, which is fixedly disposed on the inner side of the limiting arm and adapted to be inserted into the gap formed between two adjacent cylindrical batteries to limit the battery unit in the horizontal direction. This design can limit the battery unit from multiple directions, prevent the battery unit from moving around, and improve the stability of the battery unit position.

[0034] 6. The battery bracket provided by the present invention has a wire-passing structure in the support part for the connection lines of the two sets of battery units to pass through, which facilitates the routing and wiring of the two battery units, while also hiding the wires and avoiding the phenomenon of wires becoming tangled and messy.

[0035] 7. The battery assembly provided by the present invention includes an insulating sleeve. The insulating sleeve is adapted to clamp and wrap around the outer periphery of the battery unit after the first and second supports of the battery bracket are engaged. While providing insulation, the insulating sleeve also further reinforces the connection between the battery unit and the bracket body, making the entire battery assembly structure more robust and secure. Furthermore, a pull strap facilitates the removal of the battery module from the battery bracket. Attached Figure Description

[0036] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0037] Figure 1 This is an exploded view of the battery assembly in an embodiment of the present invention;

[0038] Figure 2 This is a schematic diagram of the battery assembly in an embodiment of the present invention;

[0039] Figure 3 This is a schematic diagram of the battery holder structure in an embodiment of the present invention;

[0040] Figure 4 This is a schematic diagram of the battery module structure in an embodiment of the present invention;

[0041] Figure 5 This is a schematic diagram of the structure of a single battery cell in an embodiment of the present invention;

[0042] Figure 6 for Figure 2 A schematic diagram of the battery assembly after removing the insulating sleeve and pull strap;

[0043] Figure 7 This is a schematic diagram of the structure of the first support in an embodiment of the present invention;

[0044] Figure 8 This is a schematic diagram of the structure of the second bracket in an embodiment of the present invention;

[0045] Figure 9 This is a schematic diagram of the internal structure of the bottom shell of the sweeping robot in an embodiment of the present invention.

[0046] Explanation of reference numerals in the attached figures:

[0047] 100. Battery components;

[0048] 10. Battery holder;

[0049] 101. Support section; 1011. Clearance section; 1012. Through-line structure;

[0050] 102. Limiting part; 1021. Limiting arm; 1022. Limiting rib; 1023. Limiting baffle;

[0051] 11. First bracket; 111. First snap-fit ​​structure; 112. First support half; 1121. Second snap-fit ​​structure; 1122. Positioning rib; 1123. Guide slot;

[0052] 12. Second bracket; 121. First snap-fit ​​structure; 122. Second support half; 1221. Second snap-fit ​​structure; 1222. Positioning slot; 1223. Guide post;

[0053] 13. Insulating sleeve; 14. Pull strap;

[0054] 20. Battery module; 21. Battery cell; 211. Cylindrical battery; 22. Conductive sheet; 23. Power cord; 24. Insulating pad; 25. PCB board; 26. Signal line; 28. Tail conductive sheet;

[0055] 30. Robotic vacuum cleaner; 31. Base shell; 32. Casters; 33. Roller brush. Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0057] Currently, battery modules formed from cylindrical batteries are generally encased in a plastic shell. This results in battery modules that are large in size, occupy a lot of space, are difficult to install, and have difficulty dissipating heat during operation. To solve the problems of large size and space occupation of traditional batteries, related technologies have broken down the battery module into multiple parts and connected them separately. However, the connection structure of this type of battery has problems such as complex structure or insufficient connection.

[0058] The following is combined with Figures 1 to 9 The following describes embodiments of the present invention.

[0059] According to an embodiment of the present invention, in one aspect, the present invention provides a battery bracket 10 for mounting a battery module 20, the battery module 20 including two sets of battery cells 21. The battery bracket 10 includes a bracket body, the bracket body including a first bracket 11 and a second bracket 12 that are detachably coupled. After the first bracket 11 and the second bracket 12 are mated and fastened, they can form a support portion 101 and a limiting portion 102 for holding and limiting the battery cells 21; wherein, the support portion 101 is located in the gap between the two sets of battery cells 21 and is adapted to provide support for the limiting portion 102, and the limiting portion 102 is located on both sides of the support portion 101 and is adapted to respectively accommodate at least a portion of the structure of the two sets of battery cells 21 to limit the battery cells 21.

[0060] The battery bracket 10 provided in the above embodiment uses a detachable first bracket 11 and a second bracket 12 to install two sets of battery units 21, making it more convenient and quick to install and remove the battery. After the first bracket 11 and the second bracket 12 are connected and fastened, they can form a support part 101 and a limiting part 102 for holding and limiting the battery unit 21. The support part 101 is located in the gap between the two sets of battery units 21 and is suitable for providing support for the limiting part 102. This makes full use of the gap between the two battery units 21 and solves the problem of traditional batteries being large in size and occupying a lot of space.

[0061] In addition, the battery unit 21 is fixed by limiting the first bracket 11 and the second bracket 12 through the limiting part 102. Compared with the entire battery module 20 being wrapped and fixed by a plastic shell, fixing the battery unit 21 by the bracket makes it easier for the battery unit 21 to dissipate heat around its perimeter, resulting in better heat dissipation and effectively solving the problem of heat dissipation difficulties in traditional batteries.

[0062] It should be noted that in this embodiment, the battery module 20 is divided into two parts, namely, two sets of battery units 21. The two sets of battery units 21 can work independently, or they can work in series or in parallel. This embodiment does not limit this.

[0063] This embodiment uses two sets of battery cells 21 connected in series as an example for detailed explanation.

[0064] Combination Figure 1 , Figure 4 , Figure 7 and Figure 8 As shown, two sets of battery units 21 are connected in series. The support part 101 is provided with a wire passage structure 1012 for the connection lines of the two sets of battery units 21 to pass through. This design facilitates the routing and wiring of the two battery units 21, while also hiding the lines and avoiding the phenomenon of the lines becoming tangled and messy.

[0065] In one optional embodiment, the first bracket 11 and the second bracket 12 are snap-fitted together. The two sets of battery units 21 are connected and fixed together by the snap-fitting first bracket 11 and the second bracket 12. The connection structure is simple, easier to disassemble and assemble, and the connection is reliable and stable, effectively solving the problems of complex structure, weak stability and poor stability of the existing battery bracket 10.

[0066] In one alternative implementation, such as Figures 1 to 3 , Figure 6 As shown, the support portion 101 is provided with a clearance portion 1011 suitable for avoiding external components. The clearance portion 1011 is formed by a partial inward recess of the support portion 101. While ensuring the structural strength of the battery bracket 10, by providing a clearance portion 1011 on the support portion 101 in the middle of the battery bracket 10 to avoid interference with adjacent components, the problem of the battery assembly 100 easily conflicting with other components is effectively solved, and space utilization is maximized.

[0067] It should be noted that the shape and size of the avoidance part 1011 in this embodiment can be set according to the structural strength of the battery bracket 10 and actual needs.

[0068] In one alternative embodiment, the limiting part 102 includes limiting arms 1021 disposed on both sides of the support part 101.

[0069] Furthermore, both the first bracket 11 and the second bracket 12 include two sets of limiting arms 1021 disposed on both sides of the support portion 101. The limiting arms 1021 can effectively limit the movement while minimizing obstruction of the battery unit 21, making it easier for the battery unit 21 to dissipate heat and improving the heat dissipation effect.

[0070] It should be noted that the number of limit arms 1021 in each group can be one or more.

[0071] For example, such as Figure 3 , Figures 6 to 8As shown, a limiting arm 1021 is provided on each side of the first bracket 11 and the second bracket 12. After the first bracket 11 and the second bracket 12 are fastened together, the limiting arm 1021 of the first bracket 11 and the limiting arm 1021 of the second bracket 12 are distributed on opposite sides of the bracket body, limiting the battery unit 21 from the upper and lower sides or the left and right sides, reducing obstruction and improving the heat dissipation effect of the battery unit 21.

[0072] Alternatively, two limiting arms 1021 are provided on both sides of the first bracket 11. The limiting arms 1021 of the first bracket 11 and the limiting arms 1021 of the second bracket 12 are distributed around the bracket body after the first bracket 11 and the second bracket 12 are fastened together, thereby limiting the battery unit 21 from all sides and improving the limiting effect.

[0073] This embodiment takes the example of a limiting arm 1021 on each side of the first bracket 11 and the second bracket 12 for detailed explanation.

[0074] It should be noted that in this embodiment, the width of the limiting arm 1021 is smaller than the outer diameter of the battery cell 21, reducing the obstruction of the battery cell 21. The limiting arm 1021 is a long strip-shaped thin plate structure.

[0075] In one optional embodiment, the battery cell 21 includes a cylindrical battery 211, and two sets of battery cells 21 are adapted to be arranged sequentially along a direction parallel to the central axis of the cylindrical battery 211. The extending direction of the limiting arm 1021 is parallel to the axial direction of the cylindrical battery 211. This can be understood as the two sets of battery cells 21 being arranged linearly, with their arrangement direction parallel to the central axis of the cylindrical battery 211. The limiting arm 1021 abuts against the outer periphery of the cylindrical battery 211 to limit its movement.

[0076] In one optional embodiment, each battery cell 21 includes multiple cylindrical batteries 211 arranged side by side, with a limiting arm 1021 embedded in the gap formed between two adjacent cylindrical batteries 211, and the limiting arm 1021 abutting against the two cylindrical batteries 211 respectively. In this embodiment, the limiting arm 1021 is embedded in the gap formed between two adjacent cylindrical batteries 211, and the size and shape of the limiting arm 1021 in the width direction are designed according to the gap between the two adjacent cylindrical batteries 211, making the overall structure more compact and smaller in size.

[0077] It should be noted that in this embodiment, multiple cylindrical batteries 211 are arranged side by side in close proximity in the horizontal direction.

[0078] Preferably, each group of battery cells 21 includes a multilayer cylindrical battery 211.

[0079] This embodiment will be described in detail with an example of each battery unit 21 comprising two layers of cylindrical batteries 211, each layer comprising two cylindrical batteries 211 arranged side by side.

[0080] Furthermore, the limiting arm 1021 of the first bracket 11 and the limiting arm 1021 of the second bracket 12 are engaged and limited on opposite sides of the cylindrical battery 211, and the outer wall surface of the limiting arm 1021 does not exceed the common tangent of the two adjacent cylindrical batteries 211.

[0081] In one embodiment of the above scheme, the limiting arm 1021 is located within two common tangents on opposite sides of two adjacent cylindrical batteries 211. Alternatively, in another embodiment, the outer wall surface of the limiting arm 1021 is flush with the common tangents of the two adjacent cylindrical batteries 211. By adopting the above design, the outer wall surface of the limiting arm 1021 does not exceed the outer peripheral wall surface of the battery cell 21, thereby making the overall structure more compact and smaller in size.

[0082] Preferably, in this embodiment, the outer wall surface of the limiting arm 1021 is flush with the common tangent of the two adjacent cylindrical batteries 211. The limiting arm 1021 is set in the gap between the two cylindrical batteries 211 to provide support and prevent collapse at the gap between the two cylindrical batteries 211 when the insulating sleeve 13 is applied later.

[0083] In a preferred embodiment, the limiting arm 1021 of the first bracket 11 and the limiting arm 1021 of the second bracket 12 are engaged and limited on the upper and lower sides of the cylindrical battery 211. For example, the first bracket 11 is located above the battery unit 21 and the second bracket 12 is located below the battery unit 21, thereby limiting and fixing the battery unit 21 from the upper and lower sides to prevent the battery unit 21 from falling off from below the battery bracket 10.

[0084] In one alternative implementation, such as Figure 1 , Figure 3 , Figures 6 to 8 As shown, the limiting arm 1021 is adapted to limit the battery unit 21 in the vertical direction. The limiting part 102 also includes a limiting rib 1022, which is fixedly disposed on the inner side of the limiting arm 1021 and is adapted to be inserted into the gap formed between two adjacent cylindrical batteries 211 to limit the battery unit 21 in the horizontal direction. This design can limit the battery unit 21 from multiple directions, prevent the battery unit 21 from moving around, and improve the stability of the battery unit 21 position.

[0085] In one optional embodiment, the limiting rib 1022 includes two limiting ribs 1022 that are spaced apart from each other. Both limiting ribs 1022 are inserted into the gap formed between two adjacent cylindrical batteries 211 and abut against the two opposite inner sides of the adjacent cylindrical batteries 211. The spacing between the two limiting ribs 1022 matches the gap spacing between the two cylindrical batteries 211. The two limiting ribs 1022 are inserted into and engaged within the gap between the two cylindrical batteries 211, resulting in a higher degree of fit between the limiting ribs 1022 and the two cylindrical batteries 211, further improving the stability of the battery unit 21 after it is installed in the battery holder 10.

[0086] In one optional embodiment, multiple sets of limiting ribs 1022 are provided at intervals along the length direction on the limiting arm 1021. By providing multiple sets of limiting ribs 1022, a more uniform and stable limiting can be formed in the axial direction of the cylindrical battery 211.

[0087] In one optional embodiment, a limiting rib 1022 is provided at one end of the limiting arm 1021 near the support portion 101. The limiting rib 1022 is a triangular reinforcing plate fixedly connected between the limiting arm 1021 and the support portion 101. The limiting rib 1022 can also improve the structural strength of the limiting arm 1021.

[0088] In one optional embodiment, the length of the limiting arm 1021 is not less than the length of a single battery cell 21. The limiting part 102 also includes a limiting baffle 1023, which is fixedly disposed at the end of the limiting arm 1021 away from the support part 101. It is adapted to seal the two ends of the two sets of battery cells 21 after the first bracket 11 and the second bracket 12 are mated together. By cooperating with the support part 101, the limiting baffle 1023 can effectively limit the battery cell 21 in the axial direction. The limiting arm 1021 and the limiting rib 1022 are adapted to limit the battery cell 21 in the radial direction, thereby stably limiting the battery cell 21 within the battery holder 10 in both the axial and radial directions.

[0089] In one alternative implementation, combined with Figure 1 , Figures 6 to 8 As shown, the two limiting baffles 1023 at both ends of the first bracket 11 are respectively provided with a first snap-fit ​​structure 111, and the two limiting baffles 1023 at both ends of the second bracket 12 are respectively provided with a first snap-fit ​​structure 121 suitable for snap-fitting with the first snap-fit ​​structure 111. Through the snap-fitting with the first snap-fit ​​structure 111 and the first snap-fit ​​structure 121, the two ends of the two brackets can be detachably connected together, which facilitates disassembly and assembly, and further improves the stability of the overall structure.

[0090] Optionally, in the above embodiment, the first snap-fit ​​structure 111 is a slot formed on the limiting baffle 1023 of the first bracket 11, and the first snap-fit ​​engagement structure 121 is a buckle provided on the limiting baffle 1023 of the second bracket 12. Preferably, there are multiple slots and buckles arranged at intervals.

[0091] In one optional embodiment, the support portion 101 includes a first support half 112 located in the middle of the first bracket 11 and a second support half 122 located in the middle of the second bracket 12. The first support half 112 and the second support half 122 are joined together to form the support portion 101. The first support half 112 is provided with a second snap-fit ​​structure 1121, and the second support half 122 is correspondingly provided with a second snap-fit ​​structure 1221 adapted to snap-fit ​​with the second snap-fit ​​structure 1121. Through the snap-fit ​​engagement of the second snap-fit ​​structure 1121 and the second snap-fit ​​structure 1221, the middle parts of the two brackets can be detachably connected together, which facilitates disassembly and assembly while further improving the overall structural stability.

[0092] Specifically, the splicing surface of the first support half 112 is fixedly provided with an extension rib, and the second snap-fit ​​structure 1121 is a snap hole opened on the extension rib. The second snap-fit ​​mating structure 1221 is a buckle correspondingly provided on the second support half 122.

[0093] Furthermore, the first support half 112 and the second support half 122 each have a U-shaped main body, the U-shaped main body including two oppositely arranged side walls, and two extension ribs, which are respectively fixedly arranged on the two inner sides of the opposite side walls of the first support half 112. The two extension ribs are adapted to be inserted into the inner sides of the opposite side walls of the second support half 122, and the inner sides of the opposite side walls of the second support half 122 are respectively provided with buckles.

[0094] Furthermore, the shaped body also includes end walls connected to one end of each of the two side walls, and the first support half 112 and the second support half 122 also include arc-shaped walls connected to the opening side of the shaped body, the opening direction of the arc-shaped walls is the same as the opening direction of the shaped body, and a U-shaped clearance portion 1011 is formed between the arc-shaped walls and the opposite side walls of the shaped body.

[0095] In one optional embodiment, one of the first support half 112 and the second support half 122 is provided with a positioning rib 1122, and the other is provided with a positioning slot 1222 that mates with the positioning rib 1122. The positioning rib 1122 and the positioning slot 1222 can form a preliminary positioning when the first bracket 11 and the second bracket 12 are docked, thereby improving assembly efficiency.

[0096] Specifically, the first support half 112 and the second support half 122 each include a bent baffle wall disposed on the outer side of the end wall of the C-shaped main body. The bent baffle wall includes an arc-shaped connecting section and a straight sealing section. The straight sealing section is disposed at a distance from the end wall of the C-shaped main body, and the arc-shaped connecting section connects the straight sealing section and the C-shaped main body. The bent baffle wall of the first support half 112 is provided with a positioning rib 1122. The bent baffle wall portion of the first support half 112 is pressed outward to form a positioning slot 1222 on the inner side of the bent baffle wall that mates with the positioning rib 1122.

[0097] In one optional embodiment, one of the first support half 112 and the second support half 122 is provided with a plurality of guide posts 1223 at intervals, and the other is provided with a plurality of guide slots 1123 corresponding to each other. The plurality of guide slots 1123 are inserted into the plurality of guide posts 1223 in a one-to-one correspondence. The guide posts 1223 and guide slots 1123 can play a guiding and positioning role when the first bracket 11 and the second bracket 12 are docked, so that the mating position of the two brackets can be accurately aligned, thereby improving the assembly efficiency of the two brackets.

[0098] Specifically, a predetermined interval space exists between the arc-shaped wall and the end wall of the U-shaped main body. Multiple partitions are spaced within the interval space of the first supporting half 112, forming multiple guide slots 1123 within this interval space. Similarly, multiple partitions are spaced within the interval space of the second supporting half 122, forming multiple sub-spaces within this interval space. Each sub-space contains one or more guide posts 1223, which protrude from the second supporting half 122 and can extend into the guide slots 1123 of the first supporting half 112. The guide posts 1223 strengthen the surrounding structure and facilitate installation guidance.

[0099] In one optional embodiment, the cable guide structure 1012 includes a first semi-open slot on the first support half 112 and a second semi-open slot on the second support half 122. The first and second semi-open slots, after being mated together, form a circumferentially closed through-slot with open ends. The cable guide structure 1012, formed by the combination of the first and second semi-open slots, facilitates the assembly and disassembly of connected cables.

[0100] Specifically, there is a set gap between the bent baffle and the C-shaped body, which respectively form the first semi-open groove and the second semi-open groove.

[0101] In this embodiment, the two sets of battery cells 21 are electrically connected by conductive sheets 22, and a signal line 26 is also connected between the two sets of battery cells 21. The connection lines in this embodiment include, but are not limited to, the conductive sheets 22 and the signal line 26, and the provided wire-passing structure 1012 allows the conductive sheets 22 and the signal line 26 connected between the two battery cells 21 to pass through. Preferably, in this embodiment, there are two conductive sheets 22, and they are nickel sheets.

[0102] In an embodiment not shown in this example, the battery holder 10 has only a central support portion 101, and the limiting portion 102 can be a limiting groove or a limiting rib formed on the support portion 101. There are no limiting arms 1021 or limiting baffles 1023 on either side; the battery units 21 on both sides are connected only by the central support portion 101 and then wrapped by the insulating sleeve 13. The support portion 101 can connect two battery units 21 and avoids other components near the battery assembly 100, saving structural space.

[0103] According to an embodiment of the present invention, in another aspect, a battery assembly 100 is provided, including a battery module 20 and a battery bracket 10 of any of the above embodiments, wherein the battery module 20 includes two sets of battery cells 21 and the battery module 20 is mounted on the battery bracket 10.

[0104] In one alternative implementation, combined with Figure 1 , Figure 2 and Figure 6 As shown, the battery assembly 100 also includes an insulating sleeve 13. The insulating sleeve 13 is adapted to clamp and wrap around the outer periphery of the battery unit 21 after the first bracket 11 and the second bracket 12 of the battery holder 10 are engaged, so as to reinforce the connection between the battery unit 21 and the holder body. The insulating sleeve 13 not only provides insulation but also further reinforces the connection between the battery unit 21 and the holder body, making the entire battery assembly 100 structure more robust and secure.

[0105] It should be noted that in this embodiment, the insulating sleeve 13 is a plastic film. The insulating sleeve 13 is thermoformed on the outer periphery of the limiting arm 1021 of the installed battery unit 21 and battery bracket 10. After the insulating sleeve 13 is formed, the plastic packaging will generally not deform or move unless subjected to violent operation. Its cross-sectional shape is consistent with the cross-sectional outer contour shape of the battery unit 21.

[0106] In one alternative implementation, combined with Figure 1 and Figure 2 As shown, the battery assembly 100 also includes a pull strap 14, which is fixed to the outer wall of the insulating sleeve 13. The pull strap 14 has a lifting part for the user to pull. The pull strap 14 facilitates the removal of the battery module 20 from the battery holder 10.

[0107] Preferably, in the above embodiment, the middle part of the pull strap 14 is bonded to one side of the outer wall of the insulating sleeve 13, and the two ends are free ends to form a lifting part, which can make the force for picking up the battery unit 21 more uniform and make it easier to take out the battery unit 21.

[0108] In this embodiment, each of the two battery units 21 is provided with a pull strap 14. The two pull straps 14 facilitate the removal of the battery, making the force applied when removing the battery module 20 more even and making it easier to take the battery module 20 out.

[0109] Preferably, in this embodiment, the pull strap 14 is a transparent pull strap, which makes the battery look better.

[0110] Furthermore, combined Figure 1 , Figure 2 , Figure 4 , Figure 6 As shown, for ease of understanding, the end of the battery module 20 with the power line 23 is defined as the head. The battery module 20 also includes a PCB board 25 disposed at the head, which is connected between the power line 23 and the battery cell 21 near the power line 23. The insulating pad 24 includes a first insulating pad disposed on the outside of the PCB board 25, a second insulating pad disposed on the inside of the PCB board 25, and a third insulating pad disposed at the tail of another battery cell 21. The second insulating pad is located between the PCB board 25 and the battery cell 21, and a tail conductive piece 28 is disposed between the third insulating pad and the battery cell 21. The tail conductive piece 28 is connected to the PCB board 25 via a signal line 26.

[0111] According to an embodiment of the present invention, in another aspect, combined with Figure 2 and Figure 9 As shown, a sweeping robot 30 is also provided, including a bottom shell 31 and a battery assembly 100. The battery assembly 100 is disposed inside the bottom shell 31, and the battery assembly 100 is the battery assembly 100 of any of the above embodiments.

[0112] In one optional embodiment, the robotic vacuum cleaner 30 further includes a caster wheel 32, which is mounted on the bottom shell 31 and located on one side of the battery assembly 100. The caster wheel 32 is positioned near the center of the battery assembly 100. The support portion 101 of the battery bracket 10 is recessed on the side near the caster wheel 32 to form a clearance portion 1011 that can accommodate part of the caster wheel 32. The clearance portion 1011 is a groove, preferably a U-shaped groove. By setting the clearance portion 1011 in the support portion 101 in the middle of the battery bracket 10, the caster wheel 32 can be cleverly cleared, improving the utilization rate of the internal space of the robotic vacuum cleaner 30.

[0113] In one alternative embodiment, a roller brush 33 is also provided inside the bottom shell 31.

[0114] In one alternative embodiment, the battery assembly 100 is fixed in the groove of the bottom shell 31, and the battery assembly 100 is mainly clamped by the limiting structure. The whole machine also has screws fixed to the cover plate of the bottom shell 31 for fixing the battery assembly 100.

[0115] In this embodiment, the traditional single battery of the robotic vacuum cleaner 30 is split into two parts, namely two sets of battery units 21, and a battery bracket 10 is used to fix them, saving space and making installation easier. The battery bracket 10 has a groove-shaped avoidance part 1011 in the middle to avoid the omnidirectional wheel 32, which makes better use of space.

[0116] In the overall layout, the battery assembly 100 is located at the front of the sweeping section. It is installed inside the bottom shell 31 near the edge. By incorporating recessed grooves to prevent the omnidirectional wheels 32 from flying off, the robot vacuum 30 has a square shape overall, offering more design space at the front compared to a round shape. The space near the edges of the robot vacuum 30 gradually decreases, and the battery assembly 100, which has a relatively small impact on performance, is placed here, resulting in a more rational internal space layout for the robot vacuum 30.

[0117] The structure and installation process of the battery module 100 in this embodiment are described below with reference to the accompanying drawings.

[0118] In this embodiment, the battery bracket 10 has two brackets, an upper bracket and a lower bracket. The upper bracket 11 has a first snap-fit ​​structure 111 and a second snap-fit ​​structure 1121. The lower bracket 12 is provided with a first snap-fit ​​structure 121 and a second snap-fit ​​structure 1221. The entire battery module 20 is fixed by snapping the upper and lower brackets together. Then, it is wrapped with a plastic insulating sleeve 13 and finally, two transparent pull straps 14 are attached.

[0119] In this embodiment, the battery assembly 100 is mainly connected through the middle part of the main support, effectively solving the problem of the large space occupied by the battery assembly 100, and also solving the problem of heat dissipation difficulty of traditional battery assembly 100. In addition, the support part 101 in the middle of the main support is provided with a clearance groove. The shape of the groove can be changed according to the shape of adjacent external components while ensuring strength. For example, if a caster wheel 32 needs to be placed in front of the battery assembly 100, the shape of the groove in the middle part of the support part 101 is designed as a U-shaped groove that matches the shape of the caster wheel 32, cleverly avoiding the caster wheel 32.

[0120] In this embodiment, as Figure 1 , Figure 4 and Figure 5As shown, four cylindrical batteries 211 constitute a battery unit 21. The battery assembly 100 has two battery units 21 and eight cylindrical batteries, distributed on both sides, with each side having a 2*2 configuration. The battery units 21 on both sides are connected by conductive sheets 22. The first bracket 11 and the second bracket 12 of the battery bracket 10 each have a limiting arm 1021 extending from the middle support 101 to both sides. The battery module 20 is locked by the first snap-fit ​​structure 111 and the first snap-fit ​​engagement structure 121 at the end of the limiting arm 1021. The shape of the limiting arm 1021 is designed according to the gap between the two cylindrical batteries 211. The highest plane of the limiting arm 1021 is flush with the outer end plane of the cylindrical battery 211. The two ends of the cylindrical battery 211 are also restricted by the limiting ribs 1022 on the limiting arm 1021, making the structure more compact and more robust.

[0121] After installing the battery bracket 10, the battery unit 21 of the battery module 20 and the battery bracket 10 are wrapped with insulating sleeves 13 to make the entire assembly more secure. At the same time, two transparent pull straps 14, which are respectively glued to the outside of the two insulating sleeves 13, make it easy to remove the battery.

[0122] In this embodiment, the traditional battery module 20 is divided into two parts. The two battery units 21 are connected by conductive sheets 22, and then the battery module 20 is fixed in a designated position by two brackets, and finally locked with buckles. The bracket structure is simple, compact, and has good heat dissipation. The support part 101 in the middle of the battery bracket 10 can be designed into any shape while ensuring strong strength, thus saving space.

[0123] This invention has the following advantages:

[0124] 1. By utilizing the gap between the two cylindrical batteries 211, the outer contour height of the battery bracket 10 is designed to be consistent with the height of the outer end face of the battery, thus solving the problem of the battery assembly 100 being large and occupying a lot of space.

[0125] 2. The support part 101 in the middle of the battery bracket 10 is designed with a clearance groove to avoid adjacent components while ensuring structural strength, so as to solve the problem of positional conflict between the battery assembly 100 and other components.

[0126] 3. The first bracket 11 and the second bracket 12 connect the two sets of battery units 21 by snap-fit, which is easy to install and solves the problems of complex and not strong enough battery connection structure.

[0127] 4. The battery assembly 100 provided in this embodiment mainly uses the support part 101 in the middle of the bracket and the limiting arms 1021 on both sides to fix the battery module 20, making it easier for the entire battery assembly 100 to dissipate heat around, thus solving the problem of difficult heat dissipation of traditional batteries.

[0128] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and all such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A battery bracket for mounting a battery module (20), the battery module (20) comprising two sets of battery cells (21), characterized in that, The battery holder (10) includes: The bracket body includes a first bracket (11) and a second bracket (12) that can be detachably engaged. After the first bracket (11) and the second bracket (12) are engaged, they can form a support part (101) and a limiting part (102) for holding and limiting the battery unit (21). The support portion (101) is located in the gap between the two sets of battery cells (21) and is adapted to provide support for the limiting portion (102). The limiting portion (102) is located on both sides of the support portion (101) and is adapted to accommodate at least a portion of the structure of the two sets of battery cells (21) respectively, so as to limit the battery cells (21). The first bracket (11) and the second bracket (12) are engaged; the limiting part (102) includes limiting arms (1021) fixedly disposed on both sides of the support part (101), and both the first bracket (11) and the second bracket (12) include two sets of the limiting arms (1021) disposed on both sides of the support part (101). Each of the first bracket (11) and the second bracket (12) has a limiting arm (1021) on its sides. After the first bracket (11) and the second bracket (12) are fastened together, the limiting arm (1021) of the first bracket (11) and the limiting arm (1021) of the second bracket (12) are distributed on opposite sides of the bracket body, limiting the battery unit (21) from the top and bottom or left and right sides; or, each of the first bracket (11) has two limiting arms (1021) on its sides. After the first bracket (11) and the second bracket (12) are fastened together, the limiting arm (1021) of the first bracket (11) and the limiting arm (1021) of the second bracket (12) are distributed around the bracket body, limiting the battery unit (21) from the surrounding area. The battery cell (21) includes a cylindrical battery (211), and two sets of the battery cells (21) are adapted to be arranged sequentially along a direction parallel to the central axis of the cylindrical battery (211), and the extension direction of the limiting arm (1021) is parallel to the axial direction of the cylindrical battery (211). Each group of battery cells (21) includes a plurality of cylindrical batteries (211) arranged side by side. The limiting arm (1021) is embedded in the gap formed between two adjacent cylindrical batteries (211), and the limiting arm (1021) abuts against the two cylindrical batteries (211) respectively. The outer wall surface of the limiting arm (1021) does not exceed the common tangent of the two adjacent cylindrical batteries (211).

2. The battery holder according to claim 1, characterized in that, The support (101) is provided with a clearance part (1011) suitable for avoiding external components.

3. The battery holder according to claim 1, characterized in that, The limiting arm (1021) of the first bracket (11) and the limiting arm (1021) of the second bracket (12) are engaged and limited on opposite sides of the cylindrical battery (211).

4. The battery holder according to claim 1, characterized in that, The limiting arm (1021) is adapted to limit the battery cell (21) in the vertical direction, and the limiting part (102) further includes: The limiting rib (1022) is fixedly disposed on the inner side of the limiting arm (1021) and is adapted to be inserted into the gap formed between two adjacent cylindrical batteries (211) to limit the battery cell (21) in the horizontal direction.

5. The battery holder according to any one of claims 1 to 4, characterized in that, The length of the limiting arm (1021) is not less than the length of a single battery cell (21), and the limiting part (102) further includes: A limiting baffle (1023) is fixedly disposed at one end of the limiting arm (1021) away from the support (101), and is adapted to seal the outer sides of both ends of the two sets of battery units (21) after the first bracket (11) and the second bracket (12) are docked and engaged.

6. The battery holder according to claim 5, characterized in that, The first bracket (11) has a first snap-fit ​​structure (111) on each of the two limiting baffles (1023) at both ends, and the second bracket (12) has a first snap-fit ​​structure (121) on each of the two limiting baffles (1023) at both ends, which is suitable for snap-fitting with the first snap-fit ​​structure (111).

7. The battery holder according to any one of claims 1 to 4, characterized in that, The support (101) includes a first support half (112) located in the middle of the first bracket (11) and a second support half (122) located in the middle of the second bracket (12). The first support half (112) is provided with a second snap-fit ​​structure (1121), and the second support half (122) is provided with a second snap-fit ​​structure (1221) suitable for snap-fitting with the second snap-fit ​​structure (1121).

8. The battery holder according to claim 7, characterized in that, One of the first support half (112) and the second support half (122) is provided with a positioning rib (1122), and the other is provided with a positioning slot (1222) that cooperates with the positioning rib (1122). And / or, one of the first support half (112) and the second support half (122) is provided with a plurality of guide posts (1223) at intervals, and the other is provided with a plurality of guide slots (1123) corresponding to each other, and the plurality of guide slots (1123) are inserted and engaged with the plurality of guide posts (1223) in a one-to-one correspondence.

9. The battery holder according to any one of claims 1 to 4, characterized in that, The two sets of battery cells (21) are connected in series, and the support (101) is provided with a wire passage structure (1012) through which the connection lines of the two sets of battery cells (21) can pass.

10. A battery assembly, characterized in that, include: The battery module (20) includes two sets of battery cells (21). The battery bracket (10) according to any one of claims 1 to 9, wherein the battery module (20) is mounted on the battery bracket (10).

11. The battery assembly according to claim 10, characterized in that, Also includes: An insulating sleeve (13) is adapted to fit and wrap around the outer periphery of the battery cell (21) after the first bracket (11) and the second bracket (12) of the battery holder (10) are mated and fastened. A pull strap (14) is fixed to the outer wall of the insulating sleeve (13) and has a lifting part for the user to pull.

12. A sweeping robot, characterized in that, include: Bottom shell (31); A battery assembly (100) is disposed within the bottom shell (31), wherein the battery assembly (100) is the battery assembly (100) as described in any one of claims 10 to 11.

13. The sweeping robot according to claim 12, characterized in that, Also includes: The caster wheel (32) is mounted on the bottom shell (31) and located on one side of the battery assembly (100), with the caster wheel (32) located near the middle of the battery assembly (100); The support portion (101) of the battery bracket (10) is recessed on the side near the caster wheel (32) to form a clearance portion (1011) that can accommodate part of the caster wheel (32).

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