Battery compartment structure of underwater cleaning robot

Abstract

The utility model relates to the technical field of underwater robots, in particular to a battery compartment structure of an underwater cleaning robot, which comprises a battery compartment arranged in the underwater robot, and a circuit board and a plurality of battery monomers are arranged in the battery compartment; the single batteries are arranged in an inner cavity of the battery compartment side by side along the length direction and the width direction of the battery compartment; each plurality of adjacent battery monomers are divided into a battery pack, and a battery positive electrode and a battery negative electrode in each battery pack are respectively and jointly connected with a series connection sheet; and each battery pack is electrically connected to a circuit of the circuit board through a serial connection sheet of a positive electrode and a serial connection sheet of a negative electrode. According to the battery compartment structure of the underwater cleaning robot, the battery packs in the underwater cleaning robot can be arranged in the battery compartment more orderly and reasonably, and the battery compartment can be matched with various different battery connection modes.

Description

Technical Field

[0001] The utility model relates to the technical field of underwater robots, in particular to a battery compartment structure of an underwater cleaning robot. Background Art

[0002] In order to protect the health of swimming pool users, swimming pools need to be cleaned regularly to prevent bacteria and harmful substances or suspended matter from entering the digestive tract and respiratory tract of users, protect the health of users, and improve water quality to give users a good swimming experience. Cleaning swimming pools is a time-consuming and laborious task. Among the existing methods, manual cleaning is used, but manual cleaning takes a long time and is costly, and the cleaning quality is difficult to guarantee. However, with the development of technology, underwater cleaning robots are increasingly being used in swimming pool cleaning.

[0003] Underwater cleaning robots used to clean swimming pools generally need to be equipped with necessary structures such as power supply, motor, transmission structure, filtration system, circuit board and garbage bin. As an important part of the robot, the power supply generally includes a battery compartment, in which multiple battery cells are installed. In practical applications, it is also necessary to implement a variety of different connection methods for each battery cell according to the underwater cleaning robots with different performance requirements. Different battery connection methods can combine different capacities and supply voltages. For example, the battery connection methods of 7 series 2 parallel, 7 series 3 parallel, 7 series 4 parallel, and 7 series 5 parallel are particularly commonly used for underwater cleaning robots. The implementation process is to pre-connect multiple battery cells in parallel, and then connect each pre-connected battery pack in series on the circuit board through multiple sets of wires, and finally install the connected battery combination into the battery compartment for the final waterproof seal. However, in the current common design, different battery connection methods have different arrangements in the battery compartment. Some battery connection methods will cause the battery combination to be arranged unevenly inside the battery compartment, and there is obvious surplus space that is not fully utilized, resulting in low space utilization. The battery layout design in the battery compartment lacks rationality, resulting in the need to match a larger battery compartment when encountering a battery connection method with a large number of battery cells due to the unreasonable arrangement of the battery combination itself. Replacing a larger battery compartment will occupy more internal space of the underwater cleaning robot, so it will not only affect the structure of the garbage bin inside the robot, but may also reduce the smoothness of water flow through the cleaning robot.

[0004] Therefore, it is urgent to optimize the internal battery compartment structure of the current underwater cleaning robot so that the arrangement of the battery pack in the battery compartment can be more neat and reasonable, and the battery compartment can be adapted to a variety of different battery connection methods. Utility Model Content

[0005] In order to solve the technical problems existing in the prior art to a certain extent as much as possible, the utility model provides a battery compartment structure of an underwater cleaning robot, which can make the arrangement of the battery pack inside the underwater cleaning robot more neat and reasonable in the battery compartment, and can also make the battery compartment adapt to a variety of different battery connection methods.

[0006] The utility model discloses a battery compartment structure of an underwater cleaning robot, comprising a battery compartment arranged inside the underwater cleaning robot, wherein a circuit board and a plurality of battery cells are arranged in the battery compartment;

[0007] The battery cells are arranged side by side in the inner cavity of the battery compartment along the length direction and the width direction of the battery compartment;

[0008] Every plurality of adjacent battery cells is divided into a battery group, and the positive electrode and the negative electrode of the battery in each battery group are respectively connected to a series connection plate;

[0009] Each of the battery packs is electrically connected to the circuit of the circuit board through the positive and negative series connection sheets.

[0010] According to the battery compartment structure of an underwater cleaning robot of the utility model, a plurality of battery packs are connected in parallel to the circuit of the circuit board through the series connection sheet;

[0011] or,

[0012] A plurality of battery packs are connected in series to the circuit of the circuit board through the series connection sheets.

[0013] According to the battery compartment structure of an underwater cleaning robot of the utility model, the circuit board is laid on the side wall of the battery compartment and extends along the arrangement direction of each battery cell;

[0014] Each of the series connection sheets extends to the circuit board in the same direction and is electrically connected to the circuit board respectively.

[0015] According to the battery compartment structure of an underwater cleaning robot of the utility model, the extended ends of each of the series connection pieces are respectively integrally formed with a bending piece;

[0016] Each series connection sheet is buckled with the circuit board through the bending sheet and is electrically connected to the circuit of the circuit board through the bending sheet.

[0017] According to a battery compartment structure of an underwater cleaning robot of the utility model, the series connection piece includes a plurality of p-shaped series connection pieces and / or q-shaped series connection pieces and / or T-shaped series connection pieces;

[0018] Each of the p-shaped series connection pieces, q-shaped series connection pieces, or T-shaped series connection pieces is connected in series to the same electrodes of at least five battery cells.

[0019] According to the battery compartment structure of an underwater cleaning robot of the present utility model, the connecting piece includes a plurality of "mouth"-shaped connecting pieces;

[0020] Each of the "mouth"-shaped connecting pieces is connected in series to the same electrodes of at least four battery cells.

[0021] According to the battery compartment structure of an underwater cleaning robot of the present utility model, the connecting piece includes a plurality of L-shaped connecting pieces;

[0022] Each of the L-shaped connecting pieces is connected in series to the same electrodes of at least three battery cells.

[0023] According to the battery compartment structure of an underwater cleaning robot of the present utility model, the connecting piece includes a plurality of "one"-shaped connecting pieces;

[0024] Each of the "one"-shaped connecting pieces is connected in series to the same electrodes of at least two battery cells.

[0025] According to the battery compartment structure of an underwater cleaning robot of the present utility model, a positive electrode encapsulation layer and a negative electrode encapsulation layer are respectively arranged on opposite sides inside the battery compartment;

[0026] The positive electrode encapsulation layer hermetically wraps the electrical connection points between the positive electrodes of each battery cell and each connecting piece, and hermetically wraps the electrical connection points between each connecting piece and the circuit board;

[0027] The negative electrode encapsulation layer hermetically wraps the electrical connection points between the negative electrodes of each battery cell and each connecting piece, and hermetically wraps the electrical connection points between each connecting piece and the circuit board.

[0028] According to the battery compartment structure of an underwater cleaning robot of the present utility model, both the positive electrode encapsulation layer and the negative electrode encapsulation layer are potting layers.

[0029] According to the battery compartment structure of an underwater cleaning robot of the present utility model, a first mold plate and a second mold plate are respectively arranged on opposite sides inside the battery compartment;

[0030] The positive electrode encapsulation layer and the negative electrode encapsulation layer are respectively potted and formed in the first mold plate and the second mold plate.

[0031] According to the battery compartment structure of an underwater cleaning robot of the present utility model, the inner cavity of the battery compartment is filled with a potting body;

[0032] The potting body hermetically wraps the circuit board, each battery cell and the connecting piece.

[0033] According to the battery compartment structure of an underwater cleaning robot of the present utility model, limiting rings are respectively sleeved on opposite ends of each battery cell;

[0034] At least two adjacent limiting rings are integrally fixed to each other.

[0035] According to the battery compartment structure of an underwater cleaning robot of the utility model, a plurality of limiting plates are integrally formed on the limiting ring;

[0036] Each of the limiting pieces is limited in position in the axial direction of the battery cell and abuts against the end surface of the battery cell.

[0037] According to a battery compartment structure of an underwater cleaning robot of the utility model, a mounting opening is provided on one side of the battery compartment, the mounting opening is detachably covered with a sealing cover, and a sealing ring is sealed between the mounting opening and the sealing cover.

[0038] The utility model discloses a battery compartment structure for an underwater cleaning robot that first arranges the battery cells side by side in the inner cavity of the battery compartment along the length and width directions of the battery compartment, so as to fill the internal space of the battery compartment with the battery cells as much as possible, avoid obvious surplus space, improve space utilization, and make the battery arrangement more neat and reasonable. In addition, according to different battery connection methods, each number of adjacent battery cells can be divided into a battery group in advance, and then the positive electrode and the negative electrode of the battery in each battery group are respectively connected to a series connection plate. In this way, a plurality of battery groups can be pre-assembled according to the battery connection method, and the positive electrode and the negative electrode of each battery group are respectively connected in series with a series connection plate, so that each battery group can be connected to an external circuit. Finally, each of the battery groups is electrically connected to the circuit of the circuit board through the positive electrode series connection plate and the negative electrode series connection plate, so that each battery group can be connected as an integral power supply in the battery compartment. When dividing the battery pack, dividing according to adjacent battery cells can make the assembled battery packs arranged side by side inside the battery compartment, and the arrangement is more neat and reasonable. At the same time, in actual applications, according to different battery connection requirements, a corresponding number of battery cells can be pre-divided as a battery pack, and then the positive electrode of each battery pack is independently connected in series with a series connection piece, and the negative electrode of each battery pack is independently connected in series with a series connection piece, which is equivalent to connecting the positive electrodes of each battery cell in each battery pack in series with each other, and connecting the negative electrodes of each battery cell in each battery pack in series with each other. In this way, a corresponding number of battery packs can be pre-connected in parallel, and finally, according to the specific battery connection requirements, each pre-connected battery pack is connected in series or in parallel on the circuit board to complete the battery circuit formation of the power supply. Therefore, the structure can be more flexible in the process of combining battery connection methods, allowing the battery compartment to adapt to a variety of different battery connection methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0040] Figure 1 This is the appearance diagram of the battery compartment of the first embodiment of the utility model;

[0041] Figure 2 This is an internal assembly diagram of the first embodiment of the utility model;

[0042] Figure 3 This is an internal assembly diagram of the first embodiment of the utility model;

[0043] Figure 4 This is an internal assembly diagram of the first embodiment of the utility model (front view);

[0044] Figure 5 This is a structural diagram of the serial connection sheet of the first embodiment of the utility model;

[0045] Figure 6 This is a diagram of the connection structure between the battery and the series connection sheet in the first embodiment of the utility model;

[0046] Figure 7 This is a diagram of the connection structure between the battery and the series connection sheet in the first embodiment of the utility model;

[0047] Figure 8 This is an internal assembly diagram of the first embodiment of the utility model;

[0048] Fig. 9 This is a structural diagram of a limit ring of Embodiment 1 of the present utility model;

[0049] Fig.10 yes Fig. 9 A partial enlarged view of

[0050] Fig.11 This is a structural diagram of a battery compartment in Embodiment 1 of the present utility model;

[0051] Fig.12 This is a cover structure diagram of the first embodiment of the utility model

[0052] Fig.13 This is a structural diagram of the sealing ring of the first embodiment of the utility model

[0053] Fig.14 This is a diagram showing the connection structure between the battery and the series connection sheet in the second embodiment of the present utility model.

[0054] Fig.15This is the connection structure diagram of the battery and the series connection piece in the third embodiment of the present utility model.

[0055] Reference numerals:

[0056] 1. Circuit board, 2. Battery cell, 3. Series connection piece, 31. P-shaped series connection piece, 32.

[0057] Q-shaped series connection piece, 33. T-shaped series connection piece, 34. "Square" - shaped series connection piece, 35. L-shaped series connection piece, 36. "-" - shaped series connection piece, 37. Bending piece, 4. First mold plate, 5. Second mold plate, 6. Limit ring, 61. Limit piece;

[0058] 100. Battery compartment, 101. Installation opening, 102. Cover, 103. Sealing ring. Specific implementation mode

[0059] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model. In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0060] Embodiment 1

[0061] As Figures 1 to 5 shown, the battery compartment structure of an underwater cleaning robot in this embodiment includes a battery compartment 100 installed inside the underwater cleaning robot. A circuit board 1 and several battery cells 2 are installed in the battery compartment 100. The battery compartment 100 is a long rectangular box. Each battery cell 2 is arranged side by side along the length direction and width direction of the battery compartment 100 in the inner cavity of the battery compartment 100. Optionally, in combination with Figure 6As shown, in this embodiment, the battery cells 2 are arranged in 12 columns and 3 rows in the inner cavity of the battery compartment 100, and the battery cells 2 in the battery compartment 100 need to be connected in a 7-series-5-parallel connection mode. At the same time, in order to ensure that the battery cells after the connection are arranged neatly in the battery compartment 100, in this embodiment, every 5 adjacent battery cells 2 are divided into a battery group, and the positive electrodes of the batteries in each battery group are welded with a series connection piece 3, and the negative electrodes of the batteries in each battery group are also welded with a series connection piece 3. In order to facilitate the connection of every 5 adjacent battery electrodes in series, optionally, the series connection piece 3 of this embodiment includes three shapes, namely, a p-type series connection piece 31, a q-type series connection piece 32 and a T-shaped series connection piece 33. The first battery group is the same as the second battery group. The same electrodes at opposite ends are connected in series through p-shaped serial connection pieces 31, the same electrodes at both ends of the third battery pack are connected in series through T-shaped serial connection pieces 33, the same electrodes at both ends of the fourth battery pack are connected in series through q-shaped serial connection pieces 32, the same electrodes at both ends of the fifth battery pack are connected in series through p-shaped serial connection pieces 31, the same electrodes at both ends of the sixth battery pack are connected in series through T-shaped serial connection pieces 33, the same electrodes at both ends of the seventh battery pack are connected in series through q-shaped serial connection pieces 32, and finally the seven battery packs are connected in series in the circuit board 1 through the positive and negative serial connection pieces, so that the battery cells arranged in 12 columns and 3 rows in the battery compartment 100 can be neatly and reasonably arranged in a 7-series-5-parallel connection mode to complete the connection of the battery circuit. Of course, other battery connection modes can also be changed in the same battery compartment, refer to Figure 7 As shown, taking the connection of each battery cell 2 in the battery compartment 100 in a 7-series and 4-parallel connection mode as an example, every four adjacent battery cells 2 are divided into a battery group. Similarly, the positive electrodes of the batteries in each battery group are welded with a series connection piece 3, and the negative electrodes of the batteries in each battery group are also welded with a series connection piece 3. In order to facilitate the connection of every 4 adjacent battery electrodes in series, the series connection piece 3 can be replaced with a "mouth"-shaped series connection piece 34 and an L-shaped series connection piece 35. The first battery group, the second battery group, and the third battery group are connected in series. The same as the fourth battery pack, the fifth battery pack and the seventh battery pack, the same electrodes at the opposite ends are connected in series through the "mouth"-shaped serial connection piece 34, the same electrodes at the ends of the third battery pack and the sixth battery pack are connected in series through the L-shaped serial connection piece 35, and the last seven battery packs are connected in series in the circuit of the circuit board 1 through the positive and negative serial connection pieces, so that the battery cells arranged in 12 columns and 3 rows in the battery compartment 100 can be arranged neatly and reasonably in accordance with the 7 series and 4 parallel connection mode to complete the connection of the battery circuit. It can be seen that changing the battery connection mode does not require changing the specifications of the battery compartment, and there is no need to replace the battery compartment, so there is no need to change the mold of the battery compartment, so the battery compartment structure of this embodiment can be adapted to a variety of different battery connection modes.

[0062] It can be understood that the battery compartment structure of the underwater cleaning robot of the present embodiment first arranges the battery cells 2 side by side in the inner cavity of the battery compartment 100 along the length and width directions of the battery compartment 100, so as to fill the internal space of the battery compartment 100 with the battery cells 2 as much as possible, avoid obvious surplus space, improve space utilization, and make the battery arrangement more neat and reasonable. In addition, according to different battery connection methods, every several adjacent battery cells 2 can be divided into a battery group in advance, and then the positive electrode and the negative electrode of the battery in each battery group are respectively connected to a series connection plate 3. In this way, a plurality of battery groups can be pre-assembled according to the battery connection method, and the positive electrode and the negative electrode of each battery group are respectively connected in series with a series connection plate 3, so each battery group can be connected to an external circuit. Finally, each battery group is electrically connected to the circuit of the circuit board 1 through the positive series connection plate 3 and the negative series connection plate 3, so that each battery group can be connected as an integral power supply in the battery compartment 100. When dividing the battery pack, the battery pack is divided according to adjacent battery cells 2, so that the assembled battery packs can be arranged side by side inside the battery compartment 100, and the arrangement is more neat and reasonable. At the same time, in actual applications, according to different battery connection requirements, a corresponding number of battery cells 2 can be pre-divided as a battery pack, and then the positive electrode of each battery pack is independently connected in series with a series connection plate 3, and the negative electrode of each battery pack is independently connected in series with a series connection plate 3, which is equivalent to connecting the positive electrodes of each battery cell in each battery pack in series with each other, and connecting the negative electrodes of each battery cell in each battery pack in series with each other. In this way, a corresponding number of battery packs can be pre-connected in parallel, and finally, according to the specific battery connection requirements, each pre-connected battery pack is connected in series or in parallel on the circuit board to complete the battery circuit formation of the power supply. Therefore, the structure can be more flexible in the process of combining battery connection methods, so that the battery compartment can be adapted to a variety of different battery connection methods.

[0063] Of course, the seven battery packs divided as above can be connected in parallel to the circuit of the circuit board 1 through the series connection pieces 3, or can be connected in series to the circuit of the circuit board 1 through the series connection pieces 3, and the circuit can be flexibly changed according to the actual performance requirements of the robot.

[0064] Specifically, the circuit board 1 is laid on the side wall of the battery compartment 100, and the circuit board 1 extends along the arrangement direction of each battery cell 2. After each series connection piece 3 extends to the circuit board 1 in the same direction, it is electrically connected to the circuit board 1, so that the connection structure can be simpler. Furthermore, the extended end of each series connection piece 3 is integrally formed with a bending piece 37. After each series connection piece 3 is buckled together with the circuit board 1 through the bending piece 37, each bending piece 37 is welded to the circuit board 1, so that the circuit board 1 can be more stably installed on the side of the battery pack.

[0065] In one embodiment, a positive electrode packaging layer and a negative electrode packaging layer (not shown) are provided on the upper and lower sides of the battery compartment 100, respectively. The positive electrode packaging layer is sealed and wrapped around the welding points between the positive electrode of each battery cell 2 and each series connection plate 3, and is also sealed and wrapped around the welding points between each series connection plate 3 and the circuit board 1. The negative electrode packaging layer is sealed and wrapped around the welding points between the negative electrode of each battery cell 2 and each series connection plate 3, and is also sealed and wrapped around the welding points between each series connection plate 3 and the circuit board 1, so as to achieve the purpose of protecting the welding points, forming the first level of protection for the battery pack inside the battery compartment. Furthermore, both the positive electrode packaging layer and the negative electrode packaging layer are glue-filled layers, which can further enhance the waterproof performance and also have a shock-absorbing effect. However, in order to facilitate the manufacture of the glue-filled layer, such as Figure 8 As shown, the first mold plate 4 and the second mold plate 5 are respectively installed on the upper and lower sides of the battery compartment 100, and the positive electrode packaging layer and the negative electrode packaging layer are respectively poured into the first mold plate 4 and the second mold plate 5. Therefore, as long as hot glue is poured into the first mold plate 4 and the second mold plate 5 in turn, after the hot glue is cooled and solidified, the positive electrode packaging layer and the negative electrode packaging layer can be naturally formed, which is convenient for manufacturing.

[0066] Furthermore, for further protection, the inner cavity of the battery compartment 100 is filled with a colloid (not shown in the figure), and the colloid is sealed and wrapped around the circuit board 1, each battery cell 2 and the series connection plate 3, so that each solder joint and each structural part inside the battery compartment 100 can be more comprehensively protected, with a higher waterproof level, and also plays a role in shock absorption, effectively protecting the battery in the battery compartment. However, the material of the glue is selected from materials with extremely low saturated water absorption rate to avoid micro-seepage when the user forgets to turn on the machine and soaks it in water for a long time, and hydrolysis-resistant, chemical-corrosion-resistant, and aging-resistant materials are selected to adapt to the leakage and short circuit caused by the increasing disinfection and destruction in the swimming pool environment.

[0067] Specifically, Figures 2 to 4 , Fig. 9 and Fig.10As shown, the upper and lower ends of each battery cell 2 are respectively sleeved with a limit ring 6, and at least two adjacent limit rings 6 are integrally fixed to each other, so that the battery can be fixed by each limit ring 6 when the battery cell is installed. Furthermore, a plurality of limit pieces 61 are integrally formed on the limit ring 6, and each limit piece 61 is limited in the axial direction of the battery cell 2 and abuts against the upper end face and the lower end face of the battery cell 2 to prevent the installed battery cell 2 from falling off the limit piece 61, thereby ensuring that each battery cell 2 is installed and fixed.

[0068] In one embodiment, Figure 1 , Figures 11 to 13 As shown, a mounting opening 101 is formed on one side of the battery compartment 100, and the mounting opening 101 is detachably covered with a cover 102 to facilitate installation and removal of batteries and circuit boards in the battery compartment 100, and a sealing ring 103 is sealed between the mounting opening 101 and the cover 102, thereby achieving the purpose of waterproofing and shock absorption.

[0069] Embodiment 2

[0070] like Fig.14 As shown, this embodiment is similar to the first embodiment, and the difference lies in that each battery cell 2 in the battery compartment 100 is connected in a 7-series-3-parallel connection mode, and every three adjacent battery cells 2 are divided into a battery group. Similarly, the positive electrodes of the batteries in each battery group are welded with a series connection piece 3, and the negative electrodes of the batteries in each battery group are also welded with a series connection piece 3. In order to facilitate the connection of every 3 adjacent battery electrodes in series, the series connection piece 3 is replaced by an L-shaped series connection piece 35. The first battery group to the seventh battery group are all the same, and the same electrodes at the opposite ends thereof are respectively connected in series through the L-shaped series connection piece 35. The last seven battery groups are respectively connected in series in the circuit board 1 through the positive and negative series connection pieces. In this way, the battery circuit connection can be completed in a neat and reasonable manner according to the 7-series-3-parallel connection mode for the battery cells arranged in 12 columns and 3 rows in the battery compartment 100.

[0071] Embodiment 3

[0072] like Fig.15As shown, this embodiment is similar to the first embodiment, and the difference lies in that each battery cell 2 in the battery compartment 100 is connected in a 7-series-2-parallel connection mode, and every two adjacent battery cells 2 are divided into a battery group. Similarly, the positive electrodes of the batteries in each battery group are welded with a series connection piece 3, and the negative electrodes of the batteries in each battery group are also welded with a series connection piece 3. In order to facilitate the connection of every two adjacent battery electrodes in series, the series connection piece 3 is replaced by a "one"-shaped series connection piece 36. The first battery group to the seventh battery group are all the same, and the same electrodes at the opposite ends are connected in series through the "one"-shaped series connection piece 36 respectively. The last seven battery groups are connected in series in the circuit of the circuit board 1 through the positive and negative series connection pieces respectively. In this way, the battery circuit connection can be completed in a neat and reasonable manner according to the 7-series-2-parallel connection mode for the battery cells arranged in 12 columns and 3 rows in the battery compartment 100.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A battery compartment structure for an underwater cleaning robot, characterized in that: It includes a battery compartment (100) provided inside an underwater cleaning robot, and a circuit board (1) and a plurality of battery cells (2) are provided in the battery compartment (100); Each battery cell (2) is arranged side by side in the inner cavity of the battery compartment (100) along the length direction and the width direction of the battery compartment (100); Every several adjacent battery cells (2) are divided into a battery group, and a connecting piece (3) is commonly connected to the positive electrode and the negative electrode of each battery in each battery group respectively; Each of the battery groups is electrically connected to the circuit of the circuit board (1) through the connecting pieces (3) of the positive electrode and the negative electrode respectively; 2. The battery compartment structure of the underwater cleaning robot according to claim 1, characterized in that: A plurality of the battery groups are connected in parallel to the circuit of the circuit board (1) through the connecting pieces (3) respectively; Or, A plurality of the battery groups are connected in series to the circuit of the circuit board (1) through the connecting pieces (3) respectively.

3. The battery compartment structure of the underwater cleaning robot according to claim 1, characterized in that: The circuit board (1) is laid on the side wall of the battery compartment (100) and extends along the arrangement direction of each battery cell (2); Each of the connecting pieces (3) extends in the same direction to the circuit board (1) and is electrically connected to the circuit of the circuit board (1) respectively.

4. The battery compartment structure of the underwater cleaning robot according to claim 3, characterized in that: Bending pieces (37) are integrally formed at the extending ends of each of the connecting pieces (3); Each of the connecting pieces (3) is commonly buckled to the circuit board (1) through the bending piece (37) and is electrically connected to the circuit of the circuit board (1) through the bending piece (37) respectively.

5. The battery compartment structure of the underwater cleaning robot according to claim 1, characterized in that: The connecting piece (3) includes a plurality of p-shaped connecting pieces (31) and / or q-shaped connecting pieces (32) and / or T-shaped connecting pieces (33); Each p-shaped connecting piece (31) or q-shaped connecting piece (32) or T-shaped connecting piece (33) is connected in series to the same electrodes of at least five battery cells (2).

6. The battery compartment structure of the underwater cleaning robot according to claim 1, characterized in that: The connecting piece (3) includes a plurality of "mouth"-shaped connecting pieces (34); Each of the "mouth"-shaped connecting pieces (34) is connected in series to the same electrodes of at least four battery cells (2).

7. The battery compartment structure of the underwater cleaning robot according to claim 1, characterized in that: The connecting piece (3) includes a plurality of L-shaped connecting pieces (35); Each L-shaped connecting piece (35) is connected in series to the same electrodes of at least three battery cells (2).

8. The battery compartment structure of the underwater cleaning robot according to claim 1, characterized in that: The connecting piece (3) includes a plurality of "-"-shaped connecting pieces (36); Each of the "-"-shaped connecting pieces (36) is connected in series to the same electrodes of at least two battery cells (2).

9. The battery compartment structure of the underwater cleaning robot according to claim 1, characterized in that: Positive electrode encapsulation layers and negative electrode encapsulation layers are respectively provided on the opposite sides inside the battery compartment (100); The positive electrode encapsulation layer hermetically wraps the electrical connection points between the positive electrodes of each battery cell (2) and each connecting piece (3) and hermetically wraps the electrical connection points between each connecting piece (3) and the circuit board (1); The negative electrode encapsulation layer hermetically wraps the electrical connection points between the negative electrodes of each battery cell (2) and each connecting piece (3) and hermetically wraps the electrical connection points between each connecting piece (3) and the circuit board (1).

10. The battery compartment structure of the underwater cleaning robot according to claim 9, characterized in that: Both the positive electrode encapsulation layer and the negative electrode encapsulation layer are glue injection layers.

11. The battery compartment structure of the underwater cleaning robot according to claim 10, characterized in that: A first mold plate (4) and a second mold plate (5) are respectively provided on the opposite sides inside the battery compartment (100); The positive electrode encapsulation layer and the negative electrode encapsulation layer are respectively formed by pouring in the first mold plate (4) and the second mold plate (5).

12. The battery compartment structure of the underwater cleaning robot according to claim 1, characterized in that: The inner cavity of the battery compartment (100) is filled with a colloid; The colloid potting body is sealed and wrapped around the circuit board (1), each battery cell (2) and the series connection sheet (3).

13. The battery compartment structure of the underwater cleaning robot according to claim 1, characterized in that: The opposite ends of each battery cell (2) are respectively sleeved with a limiting ring (6); At least two adjacent limiting rings (6) are integrally fixed to each other.

14. The battery compartment structure of the underwater cleaning robot according to claim 13, characterized in that: The limiting ring (6) is integrally formed with a plurality of limiting plates (61); Each of the limiting pieces (61) is in contact with the end surface of the battery cell (2) at an upper limit position in the axial direction of the battery cell (2).

15. The battery compartment structure of the underwater cleaning robot according to claim 1, characterized in that: A mounting opening (101) is provided on one side of the battery compartment (100); the mounting opening (101) is detachably covered and connected with a sealing cover (102); a sealing ring (103) is sealed between the mounting opening (101) and the sealing cover (102).

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