Battery pack and electric equipment

Abstract

The utility model relates to the technical field of power batteries, in particular to a battery pack and electric equipment.The battery pack comprises a box body, a connector assembly, an upper cover and a sealing ring, the box body comprises a frame body and a containing space defined by the frame body, and the containing space comprises a battery bin for containing a battery module and a first bin arranged on one side of the battery bin; the connector assembly is arranged in the first bin, the upper cover covers the box body and the connector assembly, the sealing ring comprises a body and a head portion, the connector assembly comprises a containing groove, the body is arranged in the containing groove, and the head portion is arranged between the upper cover and the connector assembly. According to the utility model, the sealing reliability can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to power battery technical field, specifically provide a battery pack and electrical equipment. BACKGROUND

[0002] With the development of society, in order to reduce the pollution of automobile exhaust to atmosphere, at present, new energy vehicles such as lithium battery obtain vigorous promotion, as the power source of new energy vehicle, the vehicle-mounted battery will be a large amount of heat dissipation when working, usually a set of special water cooling pipeline is used in the battery pack to control the temperature of battery, in the conventional battery pack cooling system, the box cover and water quick change are connected through bolt, in order to meet the torque of bolt, metal inserts are increased on the box cover and water quick change to ensure that the contact surface is metal, but the increased inserts will cause the large gap between the upper cover and the main body of water quick change, and the conventional sealing ring will be extruded or even damaged, thereby causing sealing failure, which is not conducive to the reliability of sealing.

[0003] Therefore, there is a need in the art for a new technical solution to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at solving above-mentioned technical problem, provides a new battery pack and electrical equipment that can improve the reliability of sealing.

[0005] The utility model provides a battery pack, including:

[0006] The box body includes a frame body and a receiving space formed by the frame body, the receiving space includes a battery compartment for accommodating a battery module and a first compartment provided on one side of the battery compartment;

[0007] The joint assembly is provided in the first compartment;

[0008] The upper cover is provided on the box body and the joint assembly;

[0009] The sealing ring includes a body and a head;

[0010] The joint assembly includes a receiving groove, the body is arranged in the receiving groove, and the head is arranged between the upper cover and the joint assembly.

[0011] In the case of adopting the above technical scheme, the sealing ring of the utility model includes a body and a head, the body is arranged in the receiving groove, and the head is arranged between the upper cover and the joint assembly, the body can not only support the head, but also seal the upper cover and the joint assembly to a certain extent, the head is arranged between the upper cover and the joint assembly, which can avoid the extrusion or damage of the sealing ring in the case of large sealing gap, thereby improving the reliability of sealing.

[0012] In the preferred technical scheme of the battery pack, the upper cover has a bottom surface facing the joint assembly, the joint assembly has a top surface facing the upper cover, and the head portion is in abutment with the bottom surface and the top surface.

[0013] In the preferred technical scheme of the battery pack, the upper cover has a bottom surface facing the joint assembly, the joint assembly has a top surface facing the upper cover, and the head portion is in abutment with the bottom surface and the top surface.

[0014] In the preferred technical scheme of the battery pack, the upper cover has a bottom surface facing the joint assembly, the joint assembly has a top surface facing the upper cover, and the head portion is in abutment with the bottom surface and the top surface.

[0015] In the preferred technical scheme of the battery pack, the upper cover has a bottom surface facing the joint assembly, the joint assembly has a top surface facing the upper cover, and the head portion is in abutment with the bottom surface and the top surface.

[0016] In the preferred technical scheme of the battery pack, the upper cover has a bottom surface facing the joint assembly, the joint assembly has a top surface facing the upper cover, and the head portion is in abutment with the bottom surface and the top surface.

[0017] In the preferred technical scheme of the battery pack, the upper cover has a bottom surface facing the joint assembly, the joint assembly has a top surface facing the upper cover, and the head portion is in abutment with the bottom surface and the top surface.

[0018] In the preferred technical scheme of the battery pack, the upper cover has a bottom surface facing the joint assembly, the joint assembly has a top surface facing the upper cover, and the head portion is in abutment with the bottom surface and the top surface.

[0019] In the preferred technical scheme of the battery pack, the upper cover has a bottom surface facing the joint assembly, the joint assembly has a top surface facing the upper cover, and the head portion is in abutment with the bottom surface and the top surface.

[0020] In the preferred technical scheme of the battery pack, the upper cover has a bottom surface facing the joint assembly, the joint assembly has a top surface facing the upper cover, and the head portion is in abutment with the bottom surface and the top surface.

[0021] In the technical scheme, the head is arranged in the gap between the top surface of the joint assembly and the bottom surface of the upper cover, the body and the head of the sealing ring are compressed when the upper cover is assembled on the joint assembly, the head is arranged in the gap, so that the sealing ring is prevented from being squeezed to one side of the accommodating groove or into the accommodating groove, thereby preventing the sealing failure, and the head is abutted with the bottom surface and the top surface at least in part, the head is compressed after the upper cover is assembled, and is filled in the gap between the upper cover and the joint assembly, thereby having a better sealing effect and improving the sealing reliability.

[0022] In the preferred technical scheme of the battery pack, the head thickness is d, the sealing ring height is D, the distance between the bottom surface and the top surface is h, and the accommodating groove depth is c, and h-0.3mm

[0023] In the technical scheme, the head thickness d needs to meet both the gap between the head and the top surface being greater than 0.3mm and the maximum compression amount of the head being less than the minimum compression amount of the body, so that the head and the body are well compressed, thereby having a better sealing effect and preventing the sealing failure.

[0024] In the preferred technical scheme of the battery pack, the accommodating groove divides the joint assembly into an inner side and an outer side, the head extends from the body to the inner side and the outer side along a direction perpendicular to the accommodating groove depth, and the head width is greater than the width of the accommodating groove opening.

[0025] In the technical scheme, the head width is greater than the width of the accommodating groove opening, so that the head is not pressed into the accommodating groove due to different assembly conditions after the upper cover is assembled on the joint assembly, and the sealing reliability is not affected.

[0026] In the preferred technical scheme of the battery pack, the joint assembly includes a base body, a connecting pipe arranged on a first side of the base body, and a pipe arranged on a second side of the base body, and the top surface is arranged on the base body.

[0027] In the technical scheme, the top surface is arranged on the base body, the top surface of the base body is abutted with the bottom surface of the upper cover, has a large contact area, and is stable during installation, and in addition, the connecting pipe on the first side of the base body and the pipe on the second side of the base body are facilitated to be assembled with other components.

[0028] In a second aspect, the utility model provides a kind of electric equipment, including the battery pack of first aspect. BRIEF DESCRIPTION OF DRAWINGS

[0029] The preferred embodiments of the utility model are described below with reference to the drawings, and in the drawings:

[0030] Figure 1 is a partial structure schematic view of the battery pack of the utility model;

[0031] Figure 2 is a partial structure sectional view of the battery pack of the utility model;

[0032] Figure 3 is a partial structure sectional view of the upper cover and joint assembly of the utility model;

[0033] Figure 4 is a structure schematic view of the sealing ring of the utility model;

[0034] Figure 5 is a cross section schematic view of the sealing ring of the utility model.

[0035] Reference signs:

[0036] 1, box body;11, frame body;12, first bin;

[0037] 2, joint assembly;21, base body;210, top surface;211, accommodating groove;212, installation groove;213, first insert;22, connecting pipe;23, pipe;

[0038] 3, upper cover;30, bottom surface;31, installation hole;32, first insert;33, gap;

[0039] 4, sealing ring;41, body;42, head;

[0040] 5, connecting piece. DETAILED DESCRIPTION

[0041] The preferred embodiments of the utility model are described below with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the utility model, and are not intended to limit the protection scope of the utility model.

[0042] It should be noted that in the description of the utility model, the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer" and the like indicate the direction or positional relationship of the terms based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and is not intended to indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0043] In addition, it needs to be explained that, in the description of the utility model, unless another explicit provision and limitation, the terms "connect", "set", "install" should be understood broadly, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be directly connected, or indirectly connected through the intermediate medium.

[0044] As Figures 1 to 5 Indicated, in the first aspect battery pack of the utility model, including box 1, joint assembly 2, upper cover 3 and sealing ring 4, box 1 includes frame body 11 and the receiving space formed by frame body 11 surrounding, receiving space includes the battery compartment of accommodating battery module and the first compartment 12 at the battery compartment side, joint assembly 2 is set in the first compartment 12, upper cover 3 is set on box 1 and joint assembly 2, sealing ring 4 includes body 41 and head 42, head 42 is set in the side of body 41 close to upper cover 3, joint assembly 2 includes accommodating groove 211, body 41 is set in accommodating groove 211, head 42 is set between upper cover 3 and joint assembly 2.

[0045] The sealing ring 4 of the utility model includes the body 41 and the head 42, the body 41 is set in the accommodating groove 211, and the head 42 is set between the upper cover 3 and the joint assembly 2, the body 41 can not only support the head 42, but also can play a certain sealing effect on the upper cover 3 and the joint assembly 2, the head 42 is set between the upper cover 3 and the joint assembly 2, the sealing ring 4 can be extruded or damaged in the case of large sealing gap 33, and the reliability of sealing is improved.

[0046] As Figures 2 to 3 Indicated, upper cover 3 has the bottom surface 30 towards joint assembly 2, joint assembly 2 has the top surface 210 towards upper cover 3, head 42 at least a part and bottom surface 30 and top surface 210 abut, head 42 at least a part and the bottom surface 30 of upper cover 3 and the top surface 210 of joint assembly 2 abut, head 42 is pressed after the assembly of upper cover 3, fills in the gap 33 between upper cover 3 and joint assembly 2, and then has better sealing effect.

[0047] As Figures 2 to 3As shown, the upper cover 3 is provided with a mounting hole 31, the joint assembly 2 is provided with a mounting groove 212, and the battery pack further comprises a connecting piece 5 penetrating the mounting hole 31 and matched with the mounting groove 212. The connecting piece 5 penetrates the mounting hole 31 and is matched and connected with the mounting groove 212, so that the upper cover 3 is fixed to the joint assembly 2 or the box body 1 through the connecting piece 5, which is simple in structure and convenient to install. The first insert 32 is arranged in the mounting hole 31, the second insert 213 is arranged in the mounting groove 212, the first insert 32 abuts against the second insert 213, and the inserts are arranged in the mounting hole 31 and the mounting groove 212, so that the structural strength of the connecting piece 5 during connection can be met, the joint assembly 2 can be prevented from being damaged during installation of the connecting piece 5, and the service life of the battery pack is improved.

[0048] With reference to Figure 3 , the first insert 32 protrudes from the bottom surface 30, the second insert 213 protrudes from the top surface 210, and the bottom surface 30 and the top surface 210 have a gap 33 therebetween. The first insert 32 and the second insert 213 are metal inserts. The upper cover 3 is connected to the joint assembly 2 through the connecting piece 5. The metal inserts can increase the structural strength of the connecting piece 5. The first insert 32 protrudes from the bottom surface 30 of the joint assembly 2, and the second insert 213 protrudes from the top surface 210 of the upper cover 3. After assembly is completed, the torque of the connecting piece 5 can be met. The upper cover 3 and the joint assembly 2 are both made of plastic. The battery pack is not only reduced in cost and lightened in weight, but also can meet the assembly requirements and improve the service life of the battery pack by using the metal inserts. The head portion 42 is arranged in the gap 33 between the top surface 210 of the joint assembly 2 and the bottom surface 30 of the upper cover 3. When the upper cover 3 is assembled to the joint assembly 2, the body 41 and the head portion 42 of the sealing ring 4 are compressed. The head portion 42 is arranged in the gap 33, so that the sealing ring 4 can be prevented from being squeezed to one side of the accommodating groove 211 or into the accommodating groove 211, thereby causing sealing failure. At least a part of the head portion 42 abuts against the bottom surface 30 and the top surface 210. The head portion 42 is compressed after assembly of the upper cover 3, is filled in the gap 33 between the upper cover 3 and the joint assembly 2, and has good sealing effect, thereby improving the sealing reliability.

[0049] With reference to Figure 3 and Figure 5 , the thickness of the head portion 42 is d, the height of the sealing ring 4 is D, the distance between the bottom surface 30 and the top surface 210 is h, and the depth of the accommodating groove 211 is c. The thickness h-0.3mm < d < hD / (c+h) of the head portion 42 needs to meet that the distance between the head portion 42 and the top surface 210 is greater than 0.3mm, and also needs to meet that the maximum compression amount of the head portion 42 is less than the minimum compression amount of the body 41. In this way, the head portion 42 and the body 41 can be well compressed, thereby having good sealing effect and also not causing sealing failure.

[0050] With reference toFigure 3 The accommodating groove 211 divides the joint assembly 2 into an inner side and an outer side, the head 42 extends from the body 41 to the inner side and the outer side in a direction perpendicular to the depth of the accommodating groove 211, and the head 42 has a width greater than the width of the opening of the accommodating groove 211, so that the head 42 cannot be pressed into the accommodating groove 211 due to different assembly conditions after the upper cover 3 is assembled with the joint assembly 2, and the reliability of the seal is not affected.

[0051] With reference to Figure 2 The joint assembly 2 comprises a base body 21, a connecting pipe 22 arranged on a first side of the base body 21, and a pipe 23 arranged on a second side of the base body 21, and a top surface 210 is arranged on the base body 21, the top surface 210 of the base body 21 abuts against the bottom surface 30 of the upper cover 3, has a large contact area, and is stable during installation, and in addition, the connecting pipe 22 arranged on the first side of the base body 21 and the pipe 23 arranged on the second side of the base body 21 are convenient to assemble with other components.

[0052] The power equipment of the second aspect of the utility model comprises the battery pack of the first aspect, and thus has all the technical effects of the battery pack of any one of the utility model.

[0053] It should be noted that the above preferred embodiments are only used to illustrate the principles of the utility model, and are not intended to limit the protection scope of the utility model. Those skilled in the art can adjust the above setting modes without departing from the principles of the utility model, so that the utility model can be applied to more specific application scenarios.

[0054] Of course, the above alternative embodiments can also be used in cross cooperation between the alternative embodiments and between the alternative embodiments and the preferred embodiments, so as to combine new embodiments to be applied to more specific application scenarios.

[0055] So far, the technical solutions of the utility model have been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to related technical features without departing from the principles of the utility model, and the technical solutions after the changes or replacements will all fall within the protection scope of the utility model.

Claims

1. A battery pack, characterized by, The battery pack comprises: a box body comprising a frame and a receiving space formed by the frame, the receiving space comprising a battery compartment for accommodating a battery module and a first compartment provided at one side of the battery compartment; a joint assembly provided in the first compartment; an upper cover provided on the box body and the joint assembly; a sealing ring comprising a body and a head; wherein the joint assembly comprises a receiving groove, the body is provided in the receiving groove, and the head is provided between the upper cover and the joint assembly.

2. The battery pack of claim 1, wherein, The upper cover has a bottom surface facing the joint assembly, the joint assembly has a top surface facing the upper cover, and at least a part of the head abuts against the bottom surface and the top surface.

3. The battery pack of claim 1, wherein, The upper cover is provided with a mounting hole, the joint assembly is provided with a mounting groove, and the battery pack further comprises a connecting piece penetrating through the mounting hole and matched with the mounting groove.

4. The battery pack of claim 3, wherein, The mounting hole is provided with a first insert, the mounting groove is provided with a second insert, and the first insert abuts against the second insert.

5. The battery pack of claim 4, wherein, The upper cover has a bottom surface facing the joint assembly, the joint assembly has a top surface facing the upper cover, and the first insert protrudes from the bottom surface, the second insert protrudes from the top surface, and the bottom surface and the top surface have a gap therebetween.

6. The battery pack of claim 5, wherein, The head is provided in the gap, and at least a part of the head abuts against the bottom surface and the top surface.

7. The battery pack of claim 2, wherein, The head has a thickness d, the sealing ring has a height D, the distance between the bottom surface and the top surface is h, the depth of the receiving groove is c, and h-0.3 < d < hD / (c+h).

8. The battery pack of claim 2, wherein, The receiving groove divides the joint assembly into an inner side and an outer side, and in a direction perpendicular to the depth of the receiving groove, the head extends from the body to the inner side and the outer side, and the width of the head is greater than the width of the opening of the receiving groove.

9. The battery pack of claim 2, wherein, The joint assembly comprises a base body, a connecting pipe provided at a first side of the base body, and a pipe provided at a second side of the base body, and the top surface is provided on the base body.

10. An electric device, characterized by The battery pack comprises any one of the battery packs according to claims 1-9. The battery pack comprises any one of the battery packs according to claims 1-9.

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