Battery pack and electric equipment

Abstract

The utility model relates to the field of lithium ion batteries, and discloses a battery pack and electric equipment. Comprising a battery pack body, a plug group, a lead arranged at the front end of the battery pack body and fixed in each plug wire hole of the plug group, a hole plugging plate, and a rear end surface which is arranged between the plug group and the battery pack body and clings to the plug group, wherein each lead extending out of the rear end of the plug group penetrates through each hole part on the hole plugging plate; the periphery of each wire is tightly attached to a penetrating hole part, each wire extending out of the hole blocking plate is electrically connected with an electrode of the battery pack body, the rubber sleeve is tightly sleeved at the front end of the battery pack body, and a plug at the front end of the plug group extends out of the front end of the rubber sleeve for external plugging. The rear end of the rubber sleeve wraps the periphery of the side wall of the battery pack body from front to back, the rear end of the hole sealing plate and the rear end of the plug group are fastened and wrapped at the front end of the battery pack body through the rubber sleeve, the rubber sleeve is filled with the rubber body in a formed and solidified mode, and the front end of the battery pack body, the electric connection structure of the electrodes and the wires, the hole blocking plate and the rear end of the plug group are packaged in the rubber body.

Description

TECHNICAL FIELD

[0001] The utility model relates to a battery field especially relates to a battery pack and electric equipment. BACKGROUND

[0002] With the more and more widely used battery, especially the application of lithium ion battery, the equipment using lithium ion battery is also more and more, and the production efficiency and automation degree of lithium ion battery pack need to be improved.

[0003] The present inventor found that the assembly stability of the current lithium ion battery pack is relatively poor during the research of the utility model. SUMMARY

[0004] One of the purposes of the utility model embodiment is to provide a battery and electric equipment, and the application of the technical scheme in the battery pack production can improve the production efficiency of the battery pack and improve the product quality.

[0005] The utility model embodiment provides a battery pack, which comprises:

[0006] The battery pack body, the end where the electrode is located is defined as the front end,

[0007] The plug group is arranged at the front end of the battery pack body, and a wire is fixed in each wire hole of the plug group,

[0008] The hole plugging plate is located between the plug group and the battery pack body, is tightly attached to the rear end face of the plug group, each wire extending out of the rear end of the plug group penetrates through each hole part on the hole plugging plate, the outer periphery of each wire is tightly attached to the hole part penetrated by the wire, and each wire extending out of the hole plugging plate is electrically connected to the electrode of the battery pack body.

[0009] The rubber sleeve is tightly sleeved at the front end of the battery pack body, the plug of the front end of the plug group extends out of the front end of the rubber sleeve to be externally connected, the rear end of the rubber sleeve is wrapped from front to back to the outer periphery of the side wall of the battery pack body, and the rubber sleeve tightly wraps the rear end of the hole plugging plate and the plug group at the front end of the battery pack body.

[0010] The rubber body is formed, solidified and filled in the rubber sleeve, and the front end of the battery pack body, the electrical connection structure of the electrode and each wire, the hole plugging plate and the rear end of the plug group are packaged in the rubber body.

[0011] Optionally, a first fixing member is arranged on the front end face of the hole plugging plate, and the first fixing member tightly fixes the rear end face of the plug group to the hole plugging plate.

[0012] Optionally, at least one first fixing member is arranged on each side of the front end face of the hole plugging plate.

[0013] Optionally, each of the first fixing members comprises a column standing on the front end surface of the hole-plugging plate, each of the columns is distributed on the outer periphery of the area where each of the hole portions is located, and a laterally protruding buckle portion is arranged on the inner side of each of the columns,

[0014] The plug group comprises a plug-in plug at the front end and a rear seat wider than the plug at the rear end, the rear seat is limited between each of the columns, and the front end surface and the rear end surface of the rear seat are fastened and limited between each of the buckle portions and the front end surface of the hole-plugging plate.

[0015] Optionally, at least one corner limiting portion is arranged on the outer side of the area where each of the hole portions is located on the front end surface of the hole-plugging plate,

[0016] At least one outer corner of the rear seat of the plug group is tightly attached to the inner side of the corner limiting portion.

[0017] Optionally, a groove is arranged on the inner wall of the side wall of the rubber sleeve as a glue injection port,

[0018] One slot opening of the groove is in communication with the outside and is located at the rear end of the side wall of the rubber sleeve, and the other slot opening is located in the rubber sleeve and is in communication with the space where the electrode is located.

[0019] Optionally, at least one second fixing member protruding from the inner wall is arranged on at least one position of the inner wall of the side wall of the rubber sleeve, the rear end surface of the hole-plugging plate is tightly attached to the front end of each of the second fixing members, and the hole-plugging plate and the rear seat of the plug group are limited between the second fixing members and the front end surface of the rubber sleeve.

[0020] Optionally, at least one second fixing member is arranged on the inner wall of each of the opposite side walls of the rubber sleeve.

[0021] Optionally, the anti-plugging plate is a rubber plate.

[0022] In the second aspect, the utility model embodiment provides an electric device, comprising a driving circuit, and the power interface of the driving circuit is connected with the plug-in port of the front end of the plug group of any of the battery groups.

[0023] As can be seen from the above, by adopting the technical scheme of the embodiment, since the hole-plugging plate is tightly attached to the rear end surface of the plug group, the un-solidified and formed glue can be prevented from overflowing into the wiring hole of the plug group and thus affecting the plug-in conductivity of the plug-in plug. In the production of the battery group, the application of the technical scheme of the embodiment can be beneficial to improving the production efficiency of the battery group and improving the quality of the product.

[0024] The battery pack of the embodiment can be used with the plug, and is flexible and convenient in application. The power supply of the electric device is also used with the plug, and the user can conveniently replace the battery pack. BRIEF DESCRIPTION OF DRAWINGS

[0025] The accompanying drawings, which are included to provide a further understanding of the present application and constitute a part of this application, illustrate embodiments of the present application and together with the description serve to explain the present application.

[0026] Figure 1 The accompanying drawings, which are included to provide a further understanding of the present application and constitute a part of this application, illustrate embodiments of the present application and together with the description serve to explain the present application.

[0027] Figure 2 , 3 The accompanying drawings, which are included to provide a further understanding of the present application and constitute a part of this application, illustrate embodiments of the present application and together with the description serve to explain the present application.

[0028] Figure 4 , 5 The accompanying drawings, which are included to provide a further understanding of the present application and constitute a part of this application, illustrate embodiments of the present application and together with the description serve to explain the present application.

[0029] Figure 6 The accompanying drawings, which are included to provide a further understanding of the present application and constitute a part of this application, illustrate embodiments of the present application and together with the description serve to explain the present application.

[0030] Figure 7 The accompanying drawings, which are included to provide a further understanding of the present application and constitute a part of this application, illustrate embodiments of the present application and together with the description serve to explain the present application.

[0031] Figure 8 , 9 The accompanying drawings, which are included to provide a further understanding of the present application and constitute a part of this application, illustrate embodiments of the present application and together with the description serve to explain the present application.

[0032] 1: battery pack body; 11: electrode;

[0033] 2: plug group; 21: wire; 22: plug; 23: rear seat; 24: wire hole;

[0034] 3: hole plate; 31: hole part; 32: column; 33: buckle part; 34: corner limiting part

[0035] 4: rubber sleeve; 41: glue injection port; 42: groove; 43: second fixing part. DETAILED DESCRIPTION

[0036] The present application will be described in detail below with reference to the accompanying drawings and specific embodiments. The schematic embodiments and the description of the present application are used to explain the present application, but do not limit the present application. EMBODIMENT

[0037] Referring to Figures 1-9 as shown.

[0038] The embodiment provides a battery pack structure which can be but is not limited to a lithium ion battery pack. It mainly comprises a shell and a battery pack body 1 fixed in the shell.

[0039] The battery pack body 1 is composed of at least two battery monomers in series or in parallel or in a combination of series and parallel. The electrode 1 of the battery pack body 1 as a whole is the electrode 1 of the battery. For the convenience of assembly, the plurality of battery monomers can be but are not limited to combined together by plastic packaging. The specific series-parallel connection scheme between the battery monomers can be but is not limited to referring to the prior art.

[0040] For the convenience of description, the end where the electrode 1 of the battery pack body 1 is located is referred to as the front end, and the end corresponding to the front end is referred to as the rear end.

[0041] The plug group 2 is arranged at the front end of the battery pack body 1. A plurality of wires 21 are respectively crimped in each wire hole of the plug group 2. The front ends of the plurality of wires 21 are respectively electrically connected to the plug 22 at the front end of the plug group 2, so as to be connected to the external plug. The rear ends of the plurality of wires 21 respectively extend from the rear end of the plug group 2 and pass through each hole part 31 on the plug hole plate 3 located at the rear end thereof. Each wire 21 passing through is closely attached to each hole part 31 on the plug hole plate 3. The front end face of the plug hole plate 3 is tightly attached to the rear end face of the plug group 2. The aperture of each wire hole 24 of the plug group 2 located at the outer periphery of each wire 21 is tightly blocked by the front end face of the plug hole plate 3 and is not in communication with the outside.

[0042] The rubber sleeve 4 has a certain elastic deformation. The front end of the rubber sleeve 4 tightly covers the rear end of the plug 22. The plug 22 at the front end of the plug group 2 extends from the front opening of the rubber sleeve 4. The rear end of the rubber sleeve 4 tightly covers the outer periphery of the side wall of the battery pack body 1 along the front end of the battery pack body 1. The rubber sleeve 4 tightly covers the side wall of the battery pack by a certain length. The plug hole plate 3 and the plug are fixed at the front end of the battery pack body 1 by the rubber sleeve 4.

[0043] There is a cured glue (not shown in the figure) in the rubber sleeve 4. The glue fills the internal space covered by the rubber sleeve 4. The front end of the battery pack body 1, the electrical connection structure of the electrode 1 of the battery pack body 1 and each wire 21, the plug hole plate 3 and the rear seat 23 of the plug group 2 located in the rubber sleeve 4 are all wrapped in the glue. The cured glue tightly packages the plug group 2 at the front end of the battery pack body 1 and is not easy to be loosened.

[0044] As can be seen from the above, the technical scheme of the embodiment can avoid the un-solidified colloid from overflowing into the wire hole 24 of the plug group 2 and affecting the plugging conductivity of the plug 22, because the hole-plugging plate 3 is tightly attached to the rear end surface of the plug group 2. The application of the technical scheme of the embodiment in the production of the battery pack can improve the production efficiency of the battery pack and the quality of the product.

[0045] The battery pack of the embodiment can be used with the plug group 2, and the power supply of the electric device can also be used with the plug group 2, so that the battery pack is flexible and convenient to use. For the electric device, the power supply can also be used with the plug group 2, and the user can conveniently replace the battery pack.

[0046] As an illustration of the embodiment, at least one fixing member (referred to as a first fixing member) is arranged on the front end surface of the hole-plugging plate 3, and the rear seat 23 of the plug group 2 is fastened to the hole-plugging plate 3 by the first fixing member, so that the front end surface of the hole-plugging plate 3 is tightly attached to the rear end surface of the plug group 2.

[0047] As an illustration of the embodiment, one or more first fixing members can be arranged on at least two sides (such as but not limited to opposite sides) of the hole-plugging plate 3, each first fixing member tightly fastening the rear seat 23 of the plug group 2 to the front end surface of the hole-plugging plate 3, and each wire 21 passes through the hole part 31 of the hole-plugging plate 3.

[0048] For example but not limited to, each first fixing member includes a column 32 standing on the front end surface of the hole-plugging plate and a buckle part 33 arranged on the inner side of the column 32, each column 32 surrounds the outside of the area where the hole part 31 is located, and each buckle part 33 is located in front of the front end surface of the hole-plugging plate 3 and has a certain distance from the front end plate, so as to buckle and limit the rear seat 23 of the plug group 2. The plug group 2 includes the plug 22 at the front end and the rear seat 23 at the rear end, the rear seat 23 is relatively wider than the plug 22 at the front end, and protrudes from at least two sides of the plug 22. When installing, the rear seat 23 of the plug group 2 is placed between the columns 32 of the hole-plugging plate 3, the buckle parts 33 on the columns 32 are tightly attached to the front of the rear seat 23 of the plug group 2, the front end surface of the hole-plugging plate 3 is tightly attached to the rear end surface of the rear seat 23 of the plug group 2, the rear seat 23 of the plug group 2 is limited on the front end surface of the hole-plugging plate 3, and the hole-plugging plate 3 tightly plugs the gap of the wire hole 24 of the rear end surface of the plug group 2. The hole-plugging plate can be made of a plastic material with certain elastic deformation performance, but is not limited to this, the rear seat 23 of the plug group 2 is fastened between the buckle part 33 and the front end surface of the hole-plugging plate 3, without the need for external fastening components, which is also conducive to improving the production efficiency.

[0049] As an embodiment of the present application, at least one corner limiting part 34 is arranged at the front end face of the hole blocking plate 3. As shown in the figure, two corner limiting parts 34 are arranged at the two corners of the front end face, protruding from the front end face, in the shape of "7". The hole part 31 through which the wire 21 is tightly sleeved is located between the two corner limiting parts 34. When the plug group 2 is installed, the outer corners of the rear seat 23 of the plug group 2 are tightly attached to the inner sides of the corner limiting parts 34 of the hole blocking plate 3, so that the plug group 2 is accurately positioned. The embodiment is advantageous in improving the assembly efficiency of the battery group and improving the product quality.

[0050] As an embodiment of the present application, a groove 42 is arranged at the inner wall of the side wall of the rubber sleeve 4, and the groove 42 is used as the glue injection port 41. The glue injection port 41 is in communication with the outside. The other groove of the groove 42 is located in the rubber sleeve 4 and is in communication with the space at the front end of the battery group body 1. After the hole blocking plate 3, the rear seat 23 of the plug group 2, and the front end of the battery group body 1 are sleeved with the rubber sleeve 4, the rubber sleeve 4 is filled with glue through the pre-arranged glue injection port 41. The glue fills the space in the rubber sleeve 4 and encapsulates the electrode 1 connecting structure, the hole blocking plate, and the rear seat 23 of the plug group 2 in the glue. After the glue solidifies, the rubber sleeve 4 is integrated with the battery group body 1, and the plug group 2 is integrated with the battery group body 1. During the use and plugging of the plug group 2, the connection with the electrode 1 is not easy to loosen, which is advantageous in improving the product quality.

[0051] As an embodiment of the present application, at least one fixing part (denoted as a second fixing part 43) protruding from the inner wall is arranged at the inner wall of the side wall of the rubber sleeve 4. During assembly, the rear end face of the hole blocking plate 3 is tightly attached to the front end of each second fixing part 43, and the front end of the rear seat 23 of the plug is tightly attached to the inner wall of the front end face of the rubber sleeve 4. The hole blocking plate 3 and the rear seat 23 of the plug group 2 are limited between each second fixing part 43 of the rubber sleeve 4 and the front end face of the rubber sleeve 4 and are fixed in the rubber sleeve 4. The embodiment is advantageous in further improving the structural stability of the hole blocking plate and the rear seat 23 of the plug group 2 in the rubber sleeve 4 and improving the product quality.

[0052] For example, but not limited to, two second fixing parts 43 are arranged at two opposite sides of the sleeve, and the hole blocking plate 3 and the rear seat 23 of the plug group 2 are clamped between the two second fixing parts 43.

[0053] As an embodiment of the present application, the hole blocking plate can be, but is not limited to, a rubber plate.

[0054] The above-described embodiments do not constitute a limitation on the protection scope of the technical solutions. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the above-described embodiments shall be included in the protection scope of the technical solutions.

Claims

1. A battery pack characterized by, The battery pack comprises: a battery pack body, the end where the electrodes are located is the front end, a plug group arranged at the front end of the battery pack body, each wire hole of the plug group is fixed with a wire, a hole blocking plate located between the plug group and the battery pack body, tightly attached to the rear end surface of the plug group, each wire from the rear end of the plug group penetrates through each hole of the hole blocking plate, the outer periphery of each wire is tightly attached to the hole it penetrates through, and each wire extending from the hole blocking plate is electrically connected to the electrode of the battery pack body, a rubber sleeve tightly sleeved at the front end of the battery pack body, the plug of the front end of the plug group extends from the front end of the rubber sleeve for external connection, the rear end of the rubber sleeve wraps around the outer periphery of the side wall of the battery pack body from front to back, and the rubber sleeve tightly wraps the hole blocking plate and the rear end of the plug group at the front end of the battery pack body, a rubber body formed and cured to fill in the rubber sleeve, and the front end of the battery pack body, the electrical connection structure of the electrodes and each wire, the hole blocking plate, and the rear end of the plug group are packaged in the rubber body.

2. The battery pack according to claim 1, wherein a first fixing member is arranged on the front end surface of the hole blocking plate, and the first fixing member tightly fixes the rear end surface of the plug group to the hole blocking plate.

3. The battery pack according to claim 2, wherein at least one first fixing member is arranged on each side of the front end surface of the hole blocking plate.

4. The battery pack according to claim 3, wherein each first fixing member comprises a column standing on the front end surface of the hole blocking plate, each column is distributed around the area where each hole is located, and a laterally protruding buckle part is arranged on the inner side of each column, the plug group comprises a plug at the front end and a rear seat wider than the plug at the rear end, the rear seat is limited between each column, and the front end surface and the rear end surface of the rear seat are tightly limited between each buckle part and the front end surface of the hole blocking plate.

5. The battery pack according to claim 3, wherein at least one corner limiting part is arranged on the outer side of the area where each hole is located on the front end surface of the hole blocking plate, at least one outer corner of the rear seat of the plug group tightly abuts the inner side of the corner limiting part.

6. The battery pack according to claim 1, wherein a groove is arranged on the inner wall of the side wall of the rubber sleeve as a glue injection port, one slot of the groove is in communication with the outside and is located at the rear end of the side wall of the rubber sleeve, and the other slot is located in the rubber sleeve and is in communication with the space where the electrode is located.

7. The battery pack according to claim 1, wherein at least one second fixing member protruding from the inner wall is arranged at least at one position of the inner wall of the side wall of the rubber sleeve, the rear end surface of the hole blocking plate tightly abuts the front end of each second fixing member, and the hole blocking plate and the rear seat of the plug group are limited between the second fixing member and the front end surface of the rubber sleeve.

8. The battery pack according to claim 7, wherein at least one second fixing member is arranged on the inner wall of each of the opposite side walls of the rubber sleeve.

9. The battery pack according to claim 1, wherein the anti-blocking plate is a rubber plate.

10. An electrically powered device, characterized by including, a driving circuit, a power supply interface of which is connected to the plug of the battery pack according to any one of claims 1 to 9.

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