Battery box and electric equipment

Abstract

The utility model provides a battery box and electric equipment, and relates to the technical field of battery boxes. A containing groove is formed in the outer surface of the battery box. The battery box comprises a box body, a cover body, a connecting piece and sealant. Wherein a containing cavity is formed in the box body, and the containing cavity is provided with an opening; the cover body covers the opening in a sealing mode, a through hole is formed in one of the box body and the cover body, and the through hole is located in the bottom of the containing groove; the connecting piece penetrates through the through hole and is connected to the other one of the box body and the cover body, so that the box body and the cover body are mutually fastened; the containing groove is filled with the sealant, and the sealant covers the connecting piece and the through hole. The battery box provided by the utility model is used for supplying power, and the sealing performance of the battery box can be improved, so that the power supply reliability of the battery box can be improved.

Description

Technical Field

[0001] This application relates to the field of battery box technology, and more particularly to a battery box and electrical device. Background Technology

[0002] The battery box is used to power external devices. In related technologies, the battery box has poor sealing, resulting in poor reliability of the power supply. Utility Model Content

[0003] This application provides a battery box and an electrical device that can improve the sealing of the battery box, thereby improving the power supply reliability of the battery box.

[0004] In a first aspect, this application provides a battery box with a receiving groove on its outer surface. The battery box includes a box body, a cover, a connector, and sealant. The box body forms a receiving cavity with an opening; the cover sealably covers the opening, and one of the box body and the cover forms a through hole located at the bottom of the receiving groove; the connector passes through the through hole and connects to the other of the box body and the cover to secure the box body and the cover together; the sealant fills the receiving groove and covers the connector and the through hole.

[0005] The battery box provided in this application has a connector that passes through a through hole and connects to the other of the box body and cover, allowing the box body and cover to be securely installed together. The through hole is located at the bottom of the receiving groove, and sealant is filled into the receiving groove and covers the connector, thus sealing the gap between the connector and the through hole. Substances in the external environment, such as water, are not easily able to enter the receiving cavity through this gap, resulting in high sealing performance of the battery box and thus high power supply reliability. Therefore, the battery box provided in this application can improve the sealing performance of the battery box, thereby improving the power supply reliability of the battery box.

[0006] In some implementations of this application, sealant covers the gap between the battery box and the cover. This helps to further improve the sealing performance of the battery box.

[0007] In some implementations of this application, the cover includes an adhesive surface that is sealed to the box body and surrounds the opening.

[0008] In some implementations of this application, the distance between the adhesive surface and the box body is 0.01 mm to 0.8 mm.

[0009] In some implementations of this application, a connecting groove is formed in the recess of the surface of the side of the box body where the opening is formed, the connecting groove surrounds the opening, the cover body has a connecting part, the connecting part mates with the connecting groove; an adhesive surface is formed on the connecting part, and is sealed and bonded to at least one of the two opposite side walls of the connecting groove and the bottom of the connecting groove.

[0010] In some implementations of this application, one of the two opposite sidewalls of the connecting groove forms a receiving groove with the cover.

[0011] In some implementations of this application, the surface of the cover away from the opening includes a body portion and a protrusion portion, with the protrusion portion protruding relative to the body portion along the orientation of the opening. The sidewall of the connecting groove surrounds the protrusion portion, and the sidewall of the connecting groove, the body portion, and the protrusion portion together form a receiving groove.

[0012] In some implementations of this application, the number of connectors is at least two, the at least two connectors are arranged around the opening, and the distance between two adjacent connectors is less than or equal to 150 mm.

[0013] In some implementations of this application, a sealing groove is formed on the surface of the cover near the opening along a first direction, the first direction being parallel to the orientation of the opening, and the sealing groove surrounding the opening. The battery box also includes a sealing ring that mates with the sealing groove, and the sealing ring abuts against the box body along the first direction.

[0014] In some implementations of this application, the housing includes a body and a flange. The body forms a receiving cavity, and the flange is formed on the outer surface of the body, extending around the opening. Along a first direction, a sealing ring abuts against the flange. Along the first direction, a flange is formed on the surface of the cover near the opening, and the flange surrounds the flange. The body, the flange, and the flange together form a receiving groove.

[0015] In some implementations of this application, the extending direction of the connector is parallel to the orientation of the opening. There are at least two connectors, arranged along the contour of the opening, with a spacing of less than or equal to 40 mm between adjacent connectors.

[0016] In some implementations of this application, the thickness of the sealant covering the connector and the through hole is not less than 1 mm.

[0017] In some implementations of this application, the thickness of the sealant covering the gap between the box body and the cover is not less than 1 mm.

[0018] In some implementations of this application, the connector is a screw, the screw nut is disposed in the receiving groove, the screw shank passes through the through hole and is threaded to the other of the box body and the cover body, and the screw shank is fitted with a sealing gasket, the surfaces of the sealing gasket on opposite sides along the thickness direction respectively abut against the bottom of the nut and the receiving groove.

[0019] In some implementations of this application, the connector is a screw, the screw nut is disposed in a receiving groove, the screw shank passes through a through hole and is threaded to the other of the box body and the cover body, and the axial length of the nut is less than or equal to millimeters.

[0020] Secondly, this application provides an electrical device, which includes the battery box provided in the first aspect.

[0021] The electrical equipment provided in this application, including the battery box provided in the first aspect of this application, can achieve the same technical effect, namely, it can improve the sealing performance of the battery box.

[0022] In some implementations of this application, the electrical device is a pool cleaning robot, which includes a body and a battery box disposed within the body. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is one of the cross-sectional views of the battery box in the embodiments of this application;

[0025] Figure 2 This is a second cross-sectional view of the battery box in the embodiments of this application;

[0026] Figure 3 This is a schematic diagram of the battery box structure in an embodiment of this application;

[0027] Figure 4 This is one of the structural schematic diagrams of the connection between the cover and the box in the embodiments of this application;

[0028] Figure 5 This is the second structural schematic diagram of the connection between the cover and the box in the embodiments of this application.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Box body; 12. Receiving cavity; 121. Opening; 13. First protrusion; 14. Second protrusion; 15. Body; 16. Flange; 161. Protruding ring; 2. Cover body; 21. Connecting part; 211. Adhesive surface; 22. Body part; 23. Protrusion; 24. Fourth protrusion; 25. Protruding edge; 3. Connector; 4. Sealing ring; 5. Receiving groove; 6. Sealing gasket. Detailed Implementation

[0031] The technical solutions in this application will now be described clearly and in detail with reference to the accompanying drawings.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this application.

[0033] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0034] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0035] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0036] This application provides an electrical device, which can be of various types. For example, it can be a pool cleaning robot. During operation, the pool cleaning robot is placed inside a pool and can filter and clean the water. Examples of pool cleaning robots include swimming pool cleaning robots, recreational pool cleaning robots, landscape pool cleaning robots, bathtub cleaning robots, or water storage pool cleaning robots. Recreational pool cleaning robots include wave pool cleaning robots, wading pool cleaning robots, and children's shallow water pool cleaning robots.

[0037] The electrical device provided in this application includes a battery box. Exemplarily, in some embodiments of this application, the electrical device is a pool cleaning robot, which includes a body and a battery box disposed within the body. The battery box can power various systems of the pool cleaning robot. Exemplarily, in some embodiments of this application, the pool cleaning robot includes a power system, which includes an electric motor and wheels. The stator of the electric motor is fixed relative to the body, and the rotor of the electric motor is drively connected to the wheels to drive the wheels to rotate relative to the body. During the rotation of the wheels relative to the body, the wheels can drive the body to move within the pool. The battery box can power the electric motor. Exemplarily, in some embodiments of this application, the pool cleaning robot includes a cleaning system, which includes a water pump and a filter. The battery can power the water pump, enabling the water pump to drive water in the pool through the filter.

[0038] Of course, in some embodiments of this application, the electrical device may also be other devices besides the pool cleaning robot. For example, the electrical device may be a mobile phone, portable device, laptop, electric vehicle, electric toy, power tool, vehicle, ship and spacecraft, etc., wherein the spacecraft may be an airplane, rocket, space shuttle, spacecraft, etc.

[0039] Please refer to Figure 1 and Figure 2 The battery box provided in this application embodiment includes a box body 1, a cover 2, a connector 3, and sealant. The box body 1 forms a receiving cavity 12 with an opening 121. The cover 2 is sealed over the opening 121. One of the box body 1 and the cover 2 has a through hole located at the bottom of the receiving groove 5. The connector 3 passes through the through hole and connects to the other of the box body 1 and the cover 2, thereby securing the box body 1 and the cover 2 together. The sealant fills the receiving groove 5 and covers the connector 3 and the through hole.

[0040] The battery box provided in this application embodiment has a connector 3 passing through a through hole and connected to the other of the box body 1 and the cover 2, so that the box body 1 and the cover 2 are securely installed together. The through hole is located at the bottom of the receiving groove 5, and sealant is filled in the receiving groove 5 and covers the connector 3, so that the gap between the connector 3 and the through hole and the gap between the box body and the cover are sealed. Substances in the external environment are not easily able to enter the receiving cavity 12 through these gaps, resulting in high sealing performance of the battery box and thus high power supply reliability. Therefore, the battery box provided in this application can improve the sealing performance of the battery box, thereby improving the power supply reliability of the battery box.

[0041] Please refer to Figure 1 and Figure 2 In some embodiments of this application, sealant covers the gap between the housing 1 and the cover 2. This helps to further improve the sealing performance of the battery box.

[0042] Please refer to Figure 1 and Figure 2 It is understood that in this embodiment of the application, the cover 2 covers the opening 121 in the opposite direction to the orientation of the opening 121, the cover 2 and the box 1 are sealed and abutted together, and the sealed and abutted part surrounds the opening 121 circumferentially, that is, the cover 2 is sealed and abutted over the opening 121. It should be explained that the sealed and abutted relationship between the cover 2 and the box 1 can be direct contact between the cover 2 and the box 1, or indirect contact through an intermediate medium layer.

[0043] Please refer to Figure 1 and Figure 2 It is understood that in this embodiment of the application, the through hole is located at the bottom of the receiving groove 5, the first end of the connector 3 is located inside the receiving groove 5, the first end of the connector 3 is located on one side of the through hole along the depth direction of the through hole, and the second end of the connector 3 extends through the through hole to the outside of the receiving groove 5 to connect with the other of the box body 1 and the cover body 2 so that the box body 1 and the cover body 2 are fastened to each other. The second end of the connector 3 is located on the other side of the through hole along the depth direction of the through hole. The direction from the first end to the second end of the connector 3 is the depth direction of the receiving groove 5, which is opposite to the orientation of the receiving groove 5.

[0044] Please refer to Figure 1 and Figure 2 The connector 3 in this application embodiment can be implemented in various forms, such as a screw, rivet, bolt, or stud. Exemplarily, in some embodiments of this application, the connector 3 is a screw, with its axial direction parallel to the depth direction of the receiving groove 5. The screw head is disposed within the receiving groove 5, and the screw shank passes through a through hole and is threaded to the other of the housing 1 and cover 2. In some embodiments of this application, a sealing gasket 6 is fitted onto the screw shank. The sealing gasket 6 is disposed within the receiving groove 5, and the surfaces of the sealing gasket 6 on opposite sides along its thickness direction abut against the screw head and the bottom of the receiving groove 5, respectively. This allows the sealing gasket 6 to seal the through hole, improving the sealing performance of the battery box. In some embodiments of this application, the bottom of the receiving groove 5 is recessed along its depth direction to form an installation groove, and the sealing gasket 6 is embedded within the installation groove. This improves the stability of the sealing gasket 6 installation.

[0045] Please refer to Figure 1 and Figure 2 It is understood that in this embodiment, the sealant covers the connector 3, that is, the sealant wraps around the first end of the connector 3. In this embodiment, the sealant is, for example, silicone or epoxy resin. In some embodiments of this application, the sealant can be filled into the receiving groove 5 by a potting process.

[0046] Please refer to Figure 1 and Figure 2 In some embodiments of this application, the depth direction of the through hole is parallel to the first direction, which is parallel to the orientation of the opening 121. This allows the cover 2 to fit more tightly over the opening 121, improving the sealing effect of the cover 2 on the box 1. Of course, in some embodiments of this application, the depth direction of the through hole can also be other than the first direction, such as a direction perpendicular to the first direction.

[0047] Please refer to Figure 1 and Figure 2 In some embodiments of this application, one of the housing 1 and the cover 2 has a blind hole, which is arranged opposite to the through hole, and the second end of the connector 3 mates with the blind hole. In this way, one end of the blind hole is open and the other end is closed. The open end allows the second end of the connector 3 to extend into it, and the closed end has a high sealing performance, which helps to improve the sealing performance of the battery box.

[0048] Please refer to Figure 1 and Figure 2 For ease of understanding, along the depth direction of the through hole, the end of the through hole closer to the receiving groove 5 is called the first end of the through hole, and the end of the through hole farther from the receiving groove 5 is called the second end of the through hole. The surface of the port with the second end of the through hole abuts against the other of the box body 1 and the cover body 2. This helps to improve the stability of the installation of the box body 1 and the cover body 2, and also helps to improve the sealing at the connection between the box body 1 and the cover body 2.

[0049] Please refer to Figure 1 and Figure 2 In this application embodiment, the orientation of the opening 121 can be various. For example, in some embodiments of this application, the orientation of the opening 121 can be parallel to the vertical direction or parallel to the horizontal direction.

[0050] Please refer to Figure 1 and Figure 2 In some embodiments of this application, the thickness of the sealant covering the connector 3 and the through hole is not less than 1 mm, and the thickness of the sealant covering the gap between the cover 2 and the box 1 is not less than 1 mm. Preferably, it can be 3 mm, 5 mm, 7 mm, etc. In this case, the sealant can not only seal the connector 3 and the through hole as well as the box 1 and the cover 2, achieving a better sealing effect and improving the sealing performance of the battery box, but also avoids waste and overuse of the sealant.

[0051] In one possible embodiment, the depth of the receiving groove 5 is 1 mm to 15 mm, preferably 2 mm to 8 mm, and exemplaryly, it can be 3 mm, 5 mm, 6 mm, or 7 mm, etc. This ensures that the depth of the receiving groove 5 meets the requirements for the sealant potting depth, resulting in better sealing of the through-hole by the sealant. This improves the sealing performance of the battery box.

[0052] Please refer to Figure 1 and Figure 2 In some embodiments of this application, the cover 2 includes an adhesive surface 211, which is sealed and bonded to the box body 1, and the adhesive surface 211 surrounds the opening 121. This structural form is beneficial to improving the stability of the installation of the box body 1 and the cover 2, and also to improving the sealing performance at the connection between the box body 1 and the cover 2.

[0053] Please refer to Figure 1 and Figure 2 It should be explained that, in the embodiments of this application, the adhesive surface 211 surrounds the opening 121, which means that the adhesive surface 211 surrounds the opening 121 along the outline of the opening 121 to form a circumferential structure.

[0054] Please refer to Figure 1 and Figure 2 In some embodiments of this application, the adhesive surface 211 and the box body 1 can be sealed and bonded together with adhesive. In this way, the bond between the box body 1 and the cover 2 is relatively strong.

[0055] Please refer to Figure 1 and Figure 2 In some embodiments of this application, the distance between the adhesive surface 211 and the box body 1 is 0.01 mm to 0.8 mm, preferably 0.05 mm to 0.5 mm. Exemplarily, it can be 0.1 mm, 0.15 mm, 0.2 mm, 0.3 mm, or 0.4 mm, etc. With this structural configuration, the gap between the adhesive surface 211 and the box body 1 is suitable, and the adhesive has good flowability between them. This facilitates a more uniform distribution of the adhesive on the adhesive surface 211, which improves the sealing performance between the adhesive surface 211 and the box body 1. Furthermore, when the gap between the adhesive surface 211 and the box body 1 is suitable, the thickness of the adhesive layer formed after curing is smaller, resulting in greater rigidity of the adhesive layer. This improves the stability of the connection between the box body 1 and the cover 2.

[0056] Please refer to Figure 1 and Figure 2In some embodiments of this application, a connecting groove is formed in the recess of the surface of the box body 1 on the side where the opening 121 is formed, the connecting groove surrounds the opening 121, the cover body 2 is formed with a connecting part 21, the connecting part 21 cooperates with the connecting groove; the adhesive surface 211 is formed on the connecting part 21 and is sealed and bonded to at least one of the two opposite side walls of the connecting groove and the bottom of the connecting groove.

[0057] By mounting the box body 1 and the cover 2 together via the connecting part 21 and the connecting groove, the stability of the installation of the box body 1 and the cover 2 is improved. Furthermore, the path of substances from the external environment into the receiving cavity 12 has more bends, resulting in better sealing at the connection between the cover 2 and the box body 1. In addition, when the cover 2 moves relative to the box body 1 in the opposite direction to the orientation of the opening 121, so that the cover 2 covers the opening 121, the connecting part 21 can extend into the connecting groove in the opposite direction to the orientation of the opening 121 as the cover 2 moves, making the installation of the connecting groove and the connecting part 21 more convenient.

[0058] By forming the adhesive surface 211 on the connecting part 21 and sealing it to at least one of the two opposite sidewalls of the connecting groove and the bottom of the connecting groove, the connecting part 21 is not only used to realize the connection between the box body 1 and the cover body 2, but also to arrange the adhesive surface 211. The connecting part 21 is fully utilized, which is beneficial to improving the compactness of the structure.

[0059] Please refer to Figure 1 and Figure 2 It should be explained that, in this embodiment of the application, the two sidewalls of the connecting groove and the bottom of the connecting groove together form the inner surface of the connecting groove. The two sidewalls of the connecting groove are arranged opposite to each other along the width direction of the connecting groove. The width direction of the connecting groove is perpendicular to the orientation of the opening 121, and the orientation of the bottom of the connecting groove is the same as the orientation of the opening 121.

[0060] Please refer to Figure 1 and Figure 2 It is understood that in the embodiments of this application, the connecting groove surrounds the circumferential opening 121 along the opening 121.

[0061] Please refer to Figure 1 and Figure 2 In some embodiments of this application, one of the two opposite sidewalls of the connecting groove forms a receiving groove 5 with the cover 2. In this way, the connecting groove is not only used for bonding with the adhesive surface 211, but also for forming the receiving groove 5, thus making full use of the connecting groove and improving the compactness of the structure. Furthermore, the connecting groove and the cover 2 forming the receiving groove 5 allows the sealant to cover the gap between the adhesive surface 211 and the box body 1, further improving the sealing effect of the battery box.

[0062] Please refer to Figure 1 and Figure 2In some embodiments of this application, at least one of the two opposite sidewalls and the bottom of the connecting groove is bonded to the bonding surface 211 with adhesive. In a preferred embodiment, all three sides of the connecting groove are bonded to the corresponding bonding surface 211. Because the adhesive is fluid, it can fill the gap between the connecting groove and the corresponding bonding surface 211 while bonding the connecting groove and the connecting part 21, thus achieving both bonding and sealing. For ease of understanding, the one of the two opposite sidewalls of the connecting groove that, together with the cover 2, forms the receiving groove 5 is called the first sidewall, and the other is called the second sidewall. At least one of the lower part of the first sidewall, at least the lower part or the entire second sidewall, and the bottom is bonded to the corresponding bonding surface 211 with adhesive. Preferably, all three surfaces are bonded, making the bonding between the bonding parts more secure, and simultaneously achieving stability and sealing of the installation of the box 1 and the cover 2. During the process of filling the receiving groove 5 with sealant, the sealant can also penetrate into the upper part of the gap between the first side wall and the bonding surface 211, thereby filling and covering the gap between the first side wall and the cover 2 with a certain thickness. That is, the operation of filling the receiving groove 5 with sealant can achieve the sealing coverage of the gap between the box body 1 and the cover 2. Through the bonding of the connecting groove and the connecting part 21 and the filling of the receiving groove 5 with sealant, the sealing effect between the box body 1 and the cover 2 is more reliable through two seals.

[0063] Please refer to Figure 1 and Figure 2 In some embodiments of this application, the surface of the cover 2 away from the opening 121 includes a body portion 22 and a protrusion 23, with the protrusion 23 protruding relative to the body portion 22 along the orientation of the opening 121. The sidewall of the connecting groove surrounds the protrusion 23, and the sidewall of the connecting groove, the body portion 22, and the protrusion 23 together form a receiving groove 5. This structural form, where the sidewall of the connecting groove, the body portion 22, and the protrusion 23 together form the receiving groove 5, makes the implementation of the receiving groove 5 more convenient and facilitates the processing and manufacturing of the battery box.

[0064] Please refer to Figure 1 and Figure 2 It is understood that, in the embodiments of this application, both the body portion 22 and the protrusion portion 23 are formed on the side surface of the cover 2 away from the opening 121 along the first direction.

[0065] Please refer to Figure 1 and Figure 2 It is understandable that the side wall of the connecting groove, the one furthest from the opening 121, forms a receiving groove 5 with the cover 2.

[0066] Please refer to Figure 1 and Figure 2 It is understood that in the embodiments of this application, the orientation of the connecting groove, the orientation of the receiving groove 5, and the orientation of the opening 121 are consistent.

[0067] Please refer to Figure 1 and Figure 2 In some embodiments of this application, a through hole is located in the body portion 22, and the depth direction of the through hole is parallel to the first direction. The connector 3 extends through the through hole to the housing 1 and connects to the housing 1. This facilitates the arrangement of the connector 3 on the battery box.

[0068] Please refer to Figure 1 and Figure 2 In some embodiments of this application, along a first direction, a first protrusion 13 and a second protrusion 14 are formed on the surface of the box body 1 near the opening 121. The sides of the first protrusion 13 and the second protrusion 14 that are close to each other are the two sidewalls of the connecting groove. Along a direction perpendicular to the opening 121, the first protrusion 13 is farther away from the opening 121 than the second protrusion 14. It can be understood that the surface of the first protrusion 13 near the second protrusion 14, the protrusion 23, and the body 15 together form the receiving groove 5, and the surface of the second protrusion 14 near the first protrusion 13 is bonded to the adhesive surface 211. In this way, the processing and manufacturing of the connecting groove is more convenient.

[0069] Please refer to Figure 1 and Figure 2 In some embodiments of this application, along a first direction, a third protrusion and a fourth protrusion 24 are formed on the surface of the cover 2 near the opening 121. Along a direction perpendicular to the opening 121, the third protrusion is positioned relative to the fourth protrusion 24 near the edge of the cover 2. The third protrusion is the connecting portion 21, and a second protrusion 14 is located between the third and fourth protrusions 24. This arrangement, by positioning the second protrusion 14 between the third and fourth protrusions 24, further improves the stability of the cover 2 and the housing 1 during installation, and allows for more bends in the path of substances from the external environment into the receiving cavity 12, thus improving the sealing performance of the battery box.

[0070] Please refer to Figure 1 and Figure 2 In some embodiments of this application, the number of connectors 3 is at least two, and at least two connectors 3 are arranged around the opening 121. This ensures a relatively stable connection between each part of the cover 2 and the box 1 along the circumference of the opening 121. In some embodiments of this application, the distance between two adjacent connectors 3 is less than or equal to 150 mm, preferably less than or equal to 90 mm. Exemplarily, the distance between two adjacent connectors 3 can be 40 mm, 50 mm, 60 mm, 70 mm, or 80 mm, etc. This helps to reduce the gap between the cover 2 and the box 1 along the depth direction of the through hole, making it less likely for substances from the external environment to pass through this gap, thus improving the sealing performance of the battery box.

[0071] Please refer to Figure 3 , Figure 4 and Figure 5 In some embodiments of this application, a sealing groove is formed on the surface of the cover 2 near the opening 121 along the first direction, and the sealing groove surrounds the opening 121. The battery box also includes a sealing ring 4, which cooperates with the sealing groove and abuts against the box body 1 along the first direction. With this structure, the sealing ring 4 can seal the gap between the box body 1 and the cover 2, preventing substances from the external environment from entering the receiving cavity 12 through the opening 121, thus achieving a high level of sealing performance for the battery box.

[0072] Please refer to Figure 3 , Figure 4 and Figure 5 It is understood that, in this embodiment of the application, one end of the sealing ring 4 extends out of the sealing groove in the opposite direction to the opening 121 and abuts against the box body 1 in the opposite direction to the opening 121. Along the first direction, the end faces of both ends of the sealing ring 4 abut against the cover 2 and the box body 1 respectively, so that the sealing ring seals the opening 121.

[0073] Please refer to Figure 3 , Figure 4 and Figure 5 Of course, in some embodiments of this application, a sealing groove may be formed on the surface of the box body 1 near the opening 121 along the first direction, and the sealing groove surrounds the opening 121. The sealing ring 4 cooperates with the sealing groove, and in a direction parallel to the opening 121, the sealing ring 4 abuts against the cover body 2.

[0074] Please refer to Figure 3 , Figure 4 and Figure 5 In some embodiments of this application, the hardness of the sealing ring 4 is 40HA to 70HA. This is beneficial for improving the sealing performance of the cover 2 to the box 1.

[0075] Please refer to Figure 3 , Figure 4 and Figure 5In some embodiments of this application, the box body 1 includes a body 15 and a flange 16. The body 15 forms a receiving cavity 12, and the flange 16 is formed on the outer surface of the body 15, extending around the opening 121. Along a first direction, the sealing ring 4 abuts against the flange 16. Along the first direction, a flange 25 is formed on the surface of the cover 2 near the opening 121, that is, a flange 25 is formed on the surface of the cover 2 near the box body 1, and the flange 25 surrounds the flange 16. The body 15, the flange 25, and the flange 16 together form a receiving groove 5. With this structural form, the flange 16 is used to abut against the sealing ring 4 on the one hand, and to form the receiving groove 5 together with the body 15 and the flange 25 on the other hand. The utilization rate of the flange 16 is high, which is beneficial to improving the compactness of the structure. At the same time, the setting of the flange 25 is beneficial to improving the strength and rigidity of the cover 2 structure, which is beneficial to pressing the sealing ring 4 and improving the reliability of the seal.

[0076] It is understood that in the embodiments of this application, the flange 25 surrounds the flange 16 circumferentially around the opening 121, the bottom of the receiving groove 5 is formed on the flange 16, the two opposite sidewalls of the receiving groove 5 are respectively formed on the outer surface of the body 15 and the flange 25, and the orientation of the receiving groove 5 is opposite to the orientation of the opening 121.

[0077] Please refer to Figure 3 , Figure 4 and Figure 5 In some embodiments of this application, a raised ring 161 is formed on the side surface of the flange 16 near the receiving groove 5. The raised ring 161 extends around the opening and is located at the end of the flange 16 near the raised edge 25. The setting of the raised ring 161 is beneficial to increasing the structural strength of the flange 16 and improving the stability of the installation of the box body 1 and the cover body 2.

[0078] Please refer to Figure 3 , Figure 4 and Figure 5 In some embodiments of this application, a through hole is formed on the flange 16. Based on this, in some embodiments of this application, a through hole may be formed on the convex ring 161.

[0079] Please refer to Figure 3 , Figure 4 and Figure 5In some embodiments of this application, the extending direction of the connector 3 is parallel to the orientation of the opening 121. There are at least two connectors 3, arranged along the contour of the opening 121. The distance between two adjacent connectors 3 is less than or equal to 40 mm, preferably less than or equal to 35 mm. Exemplarily, the distance between two adjacent connectors 3 can be 10 mm, 20 mm, 25 mm, or 30 mm, etc. This structural configuration ensures a relatively stable connection between the various parts of the cover 2 and the box 1 along the circumference of the opening 121, and also ensures a relatively uniform degree of compression for the various parts of the sealing ring 4 along the circumference of the opening 121, which is beneficial for improving the sealing performance of the battery box.

[0080] Please refer to Figure 3 , Figure 4 and Figure 5 In some embodiments of this application, the outer surface of the housing 1 is provided with reinforcing ribs. This helps to improve the strength and rigidity of the housing 1, enabling the housing 1 to adequately protect the energy storage module inside the receiving cavity 12.

[0081] The above embodiments are merely illustrative of the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way.

Claims

1. A battery box, characterized in that, The outer surface of the battery box is provided with a receiving groove, and the battery box includes: The box body has a receiving cavity with an opening; A cover is provided to seal over the opening, and one of the box body and the cover body has a through hole located at the bottom of the receiving groove; A connector is provided through the through hole and connected to the other of the box body and the cover body, so that the box body and the cover body are fastened to each other; Sealant is filled into the receiving groove and covers the connector and the through hole.

2. The battery box according to claim 1, characterized in that, The sealant covers the gap between the box body and the cover body.

3. The battery box according to claim 1, characterized in that, The cover includes an adhesive surface that is sealed and bonded to the box body, and the adhesive surface surrounds the opening.

4. The battery box according to claim 3, characterized in that, The distance between the adhesive surface and the box body is 0.01 mm to 0.8 mm.

5. The battery box according to claim 3, characterized in that, A connecting groove is recessed on one side of the box body where the opening is formed, the connecting groove surrounds the opening, and a connecting part is formed on the cover body, the connecting part cooperating with the connecting groove; The adhesive surface is formed on the connection portion and is sealed and bonded to at least one of the two opposite sidewalls of the connection groove and the bottom of the connection groove.

6. The battery box according to claim 5, characterized in that, One of the two opposite sidewalls of the connecting groove, together with the cover, forms the receiving groove.

7. The battery box according to claim 6, characterized in that, The surface of the cover away from the opening includes a body portion and a protrusion portion, the protrusion portion protruding relative to the body portion along the orientation of the opening; The sidewall of the connecting groove surrounds the protrusion, and the sidewall of the connecting groove, the main body, and the protrusion together form the receiving groove.

8. The battery box according to claim 3, characterized in that, The number of connectors is at least two, and the at least two connectors are arranged around the opening, with the spacing between two adjacent connectors being less than or equal to 150 mm.

9. The battery box according to claim 1, characterized in that, Along a first direction, a sealing groove is formed on the surface of the cover near the opening, the first direction being parallel to the orientation of the opening, and the sealing groove surrounding the opening; The battery box also includes a sealing ring, which cooperates with the sealing groove and abuts against the box body along the first direction.

10. The battery box according to claim 9, characterized in that, The box includes a body and a flange. The body forms the receiving cavity. The flange is formed on the outer surface of the body and extends around the opening. Along the first direction, the sealing ring abuts against the flange. Along the first direction, a raised edge is formed on the surface of the cover near the opening, and the raised edge surrounds the flange; The body, the protruding edge, and the flange together form the receiving groove.

11. The battery box according to claim 10, characterized in that, The extension direction of the connector is parallel to the orientation of the opening; The number of connectors is at least two, and the at least two connectors are arranged along the outline of the opening, with the spacing between two adjacent connectors being less than or equal to 40 mm.

12. The battery box according to any one of claims 1 to 11, characterized in that, The sealant covering the connector and the through hole has a thickness of not less than 1 mm.

13. The battery box according to any one of claims 1 to 11, characterized in that, The thickness of the sealant covering the gap between the box and the cover is not less than 1 mm.

14. The battery box according to any one of claims 1 to 11, characterized in that, The connector is a screw, the screw nut is disposed in the receiving groove, the screw shank passes through the through hole and is threaded to the other of the box body and the cover body, the screw shank is fitted with a sealing gasket, and the surfaces of the sealing gasket on opposite sides along the thickness direction respectively abut against the nut and the bottom of the receiving groove.

15. An electrical appliance, characterized in that, The battery box includes any one of claims 1 to 14.

16. The electrical equipment according to claim 15, characterized in that, The electrical equipment is a pool cleaning robot, which includes a body and a battery box disposed within the body.

Images