Battery pack and electric equipment with same

Abstract

The utility model relates to the technical field of battery packs, and discloses a battery pack and electric equipment with the battery pack, the battery pack has a first direction, and the battery pack comprises a box body provided with an accommodating cavity; the cover plate covers the box body and seals the accommodating cavity; the battery pack is arranged in the accommodating cavity, the battery pack comprises a plurality of batteries, each battery comprises a shell, a battery cell, a top cover and a pole, the battery cells are arranged in the shells, the top covers cover the shells, and the poles are arranged on the top covers and electrically connected with the battery cells; the isolation plate is arranged in the containing cavity and located between the shell and the cover plate in the first direction, and the pole penetrates through the isolation plate; the busbar is arranged in the accommodating cavity, is positioned on one side, facing the cover plate, of the isolation plate along the first direction, and is electrically connected with the post terminal; and the insulating part is arranged in the accommodating cavity and is arranged between the busbar and the cover plate along the first direction, and the insulating part is propped against the cover plate. According to the battery pack, the insulating part is arranged between the busbar and the cover plate, so that the busbar and the cover plate can be separated, and the cover plate can be supported, so that the structural strength of the battery pack is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery pack technical field, concretely relates to battery pack and electric equipment with it. BACKGROUND

[0002] The battery pack in the prior art is usually provided with a box body, a battery and a busbar, the battery and the busbar are connected and located in the box body, and there is a risk of contact between the cover of the box body and the busbar, which causes the box body to be electrified and has a safety hazard. SUMMARY

[0003] Therefore, the utility model provides a battery pack to solve the problem of contact between the cover of the box body and the busbar.

[0004] In a first aspect, the utility model provides a battery pack with a first direction, comprising: a box body provided with a containing cavity; a cover plate covering the box body and closing the containing cavity; a battery pack provided in the containing cavity, the battery pack comprising a plurality of batteries, the battery comprising a shell, a cell, a top cover and a pole, the cell being provided in the shell, the top cover covering the shell, the pole being provided on the top cover and electrically connected with the cell, and the pole being provided through the isolation plate; an isolation plate provided in the containing cavity and located between the top cover and the cover plate along the first direction; a busbar provided in the containing cavity and located on the side of the isolation plate facing the cover plate along the first direction, the busbar being electrically connected with the pole; and an insulating member provided in the containing cavity and located between the busbar and the cover plate along the first direction, the insulating member abutting against the cover plate.

[0005] Beneficial effects: by setting the insulating member, the busbar and the cover plate are separated, the conduction between the busbar and the cover plate is avoided, the electrification of the box body is prevented, the safety of the battery pack is improved, the cover plate can be supported, when the cover plate is pressed by external force, the insulating member can resist the pressure of the cover plate towards the busbar and the battery and the possible deformation, thereby absorbing the pressure of the cover plate, further avoiding the displacement of the cover plate and the contact with the busbar, and the structural strength of the battery pack is improved.

[0006] In an optional embodiment, the battery pack has a second direction intersecting with the first direction, the busbar is provided in plurality, the plurality of busbars are arranged in the second direction, and the insulating member is provided in strip shape and extends along the second direction.

[0007] Beneficial effects: one insulating member can correspond to a plurality of busbars, the number of required insulating members is reduced, the installation steps are reduced, and the production efficiency is improved.

[0008] In an alternative implementation, the battery pack further comprises: a first pressing strip arranged in the accommodating cavity, arranged on the side of the isolation plate facing the cover plate along the first direction, and the first pressing strip is arranged in a spaced manner with the insulating member, at least part of the batteries are arranged along the extension direction of the first pressing strip and connected with the first pressing strip, and the side of the first pressing strip away from the isolation plate along the first direction is in abutment with the cover plate.

[0009] Beneficial effects: through the first pressing strip, the relative positions between the plurality of batteries can be defined, the expansion range of the batteries is reduced, the structural strength and working stability of the battery pack are improved; at the same time, since the first pressing strip is also in abutment with the cover plate, the first pressing strip can also absorb the force of the cover plate pressing or deforming towards the bus bar and the battery side, thereby preventing the cover plate from contacting and conducting with the bus bar.

[0010] In an alternative implementation, the isolation plate is provided with windows, the windows are provided in a penetrating manner along the first direction, a plurality of windows are provided, and the plurality of windows are arranged in a spaced manner along the extension direction of the first pressing strip; the first pressing strip comprises a base body and a protruding rib, the base body is connected with the top cover through the window on one side along the first direction, and the protruding rib is arranged on the other side of the base body along the first direction and is in abutment with the cover plate.

[0011] Beneficial effects: through the arrangement of the windows, the connection between the first pressing strip and the batteries can be realized, through the arrangement of the protruding rib, the structural strength of the first pressing strip can be increased, the probability of damage of the first pressing strip is reduced, and the structural strength of the battery pack is further improved.

[0012] In an alternative implementation, along the first direction, the side of the protruding rib away from the base body is flush with the side of the insulating member away from the bus bar.

[0013] Beneficial effects: while realizing that the insulating member and the first pressing strip are in abutment with the cover plate, the thickness of the battery pack can be avoided to be increased, which is beneficial to the flat arrangement of the battery pack.

[0014] In an alternative implementation, the isolation plate is provided with a first area and a second area, the bus bar is arranged in the first area, and the window is arranged in the second area; along the first direction, the second area is convex towards the direction of the battery pack relative to the first area; the isolation plate is provided with a plurality of protrusions, the protrusions are convexly arranged away from the top cover along the first direction, adjacent protrusions are arranged in a spaced manner and form a first groove, a plurality of first grooves are arranged, the first pressing strip is arranged in the first groove.

[0015] Beneficial effect: by setting the protrusion, on one hand, the structural strength of the isolation plate can be increased, and on the other hand, the relative position between the first pressing strip and the isolation plate can be limited.

[0016] In an alternative embodiment, along the first direction, the side of the protrusion away from the battery does not exceed the isolation plate located in the first area.

[0017] Beneficial effect: the thickness of the isolation plate is not increased, which is beneficial to reduce the size of the battery pack in the first direction.

[0018] In an alternative embodiment, the battery pack further comprises: a second pressing strip arranged in the accommodating cavity, arranged on the side of the isolation plate facing the top cover along the first direction, and the second pressing strip is arranged in space with the insulating piece, and at least part of the battery is arranged along the extension direction of the second pressing strip and connected with the second pressing strip.

[0019] Beneficial effect: through the second pressing strip, the relative position between the plurality of batteries can be limited, the expansion range of the battery is reduced, and the structural strength and working stability of the battery pack are improved.

[0020] In an alternative embodiment, the side of the isolation plate facing the battery along the first direction is provided with a second groove, the groove opening of the second groove faces the top cover, and the second groove is provided with a plurality of second grooves, the plurality of second grooves are arranged in space, and the second pressing strip is arranged in the second groove.

[0021] Beneficial effect: the relative position between the second pressing strip and the isolation plate is fixed.

[0022] Secondly, the utility model provides a kind of electric equipment, including the battery pack of first aspect.

[0023] Beneficial effect: the electric equipment of the utility model, by using the battery pack of first aspect, setting insulating piece not only separates busbar and cover plate, avoids conduction between busbar and cover plate, improves the security of battery pack, and can support cover plate, strengthens the effect of structural strength of battery pack. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the drawings needed in the specific embodiments or prior art description will be briefly introduced as follows, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0025] Figure 1The utility model discloses a battery pack's structure schematic drawing for the embodiment of the utility model;

[0026] Figure 2 The utility model discloses a battery pack's explosion drawing for the embodiment of the utility model;

[0027] Figure 3 The utility model discloses a battery's structure schematic drawing for the embodiment of the utility model;

[0028] Figure 4 The utility model discloses a first pressing strip, insulating piece and the cooperation schematic drawing of isolating board for the embodiment of the utility model;

[0029] Figure 5 The utility model discloses a second pressing strip, insulating piece and the cooperation schematic drawing of isolating board for the embodiment of the utility model;

[0030] Figure 6 The utility model discloses the cooperation schematic drawing of information collection subassembly and isolating board for the embodiment of the utility model;

[0031] Figure 7 The utility model discloses the structure schematic drawing of isolating board for the embodiment of the utility model one of;

[0032] Figure 8 The utility model discloses the structure schematic drawing of isolating board for the embodiment of the utility model two of;

[0033] Figure 9 The utility model discloses the cooperation schematic drawing of pressing piece and temperature collection end of isolating board for the embodiment of the utility model;

[0034] Figure 10 The utility model discloses the partial schematic drawing of information collection subassembly for the embodiment of the utility model;

[0035] Figure 11 The utility model discloses the section view of battery for the embodiment of the utility model.

[0036] Mark explanation:

[0037] 1, battery pack;

[0038] 100, box; 101, hold cavity; 102, cover plate;

[0039] 200, battery pack; 210, battery; 211, pole; 212, top cover; 213, insulating film; 214, via hole; 220, shell; 230, electric core;

[0040] 300, isolating board; 310, first area; 320, second area; 321, window; 323, protruding; 325, first recess; 326, second recess; 340, pressing piece;

[0041] 400, information collection subassembly; 402, temperature collection end; 403, electric signal collection end; 404, main part department;

[0042] 500, busbar; 600, insulator;

[0043] 800, first pressing strip; 810, convex rib; 811, base body; 830, second pressing strip;

[0044] Z, first direction; Y, second direction; X, third direction. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of protection of the present application.

[0046] In the description of the present application, it should be understood that the orientations or positional relationships indicated by 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" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0047] In the description of the present application, the meaning of "multiple" is two or more. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0048] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. Those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0049] The embodiments of the present application will be described below in combination with Figures 1-11 the drawings.

[0050] According to the embodiment of the utility model, first, a battery pack 1 is provided, the battery pack 1 has a first direction Z, the battery pack 1 includes box body 100, cover plate 102, battery group 200, isolation plate 300, busbar 500 and insulating part 600.

[0051] Box body 100 is provided with accommodating cavity 101, cover plate 102 is covered in box body 100 and closes accommodating cavity 101.Battery group 200 is located in accommodating cavity 101 and includes multiple batteries 210. Figure 11 As shown, each battery 210 includes shell 220, battery core 230, pole 211 and top cover 212, battery core 230 is arranged in shell 220, top cover 212 is covered in shell 220 and closes battery core 230 in shell 220, pole 211 is arranged in top cover 212, and one end of pole 211 is connected with battery core 230, and the other end exposes outside top cover 212.Isolation plate 300 is located in accommodating cavity 101, isolation plate 300 is arranged between top cover 212 and cover plate 102 along the first direction Z, and pole 211 is arranged in isolation plate 300 to be electrically connected with busbar 500.

[0052] Wherein, isolation plate 300 can be made of insulating material, for example, isolation plate 300 is made of insulating plastic, isolation plate 300 can separate battery group 200 from cover plate 102, avoid the electrical connection between battery group 200 and cover plate 102, reduce the probability of cover plate 102 being electrified, and improve the safety of battery pack 1.

[0053] Busbar 500 is arranged in accommodating cavity 101, busbar 500 is located on the side of isolation plate 300 towards cover plate 102 along the first direction Z, and busbar 500 is electrically connected with pole 211.

[0054] Specifically, busbar 500 connects the poles 211 of two adjacent batteries 210, for example, the positive pole 211 of one battery 210 is connected with busbar 500, and the negative pole 211 of another battery 210 is connected with busbar 500, and busbar 500 connects the two adjacent batteries 210 in series, or the positive pole 211 of one battery 210 is connected with busbar 500, and the positive pole 211 of another battery 210 is connected with busbar 500, and busbar 500 connects the two adjacent batteries 210 in parallel, or the negative pole 211 of one battery 210 is connected with busbar 500, and the negative pole 211 of another battery 210 is connected with busbar 500, and busbar 500 connects the two adjacent batteries 210 in parallel, thereby realizing the series connection or parallel connection of the multiple batteries 210 of battery group 200.

[0055] The insulating piece 600 is arranged in the accommodating cavity 101, and the insulating piece 600 is arranged on the side of the busbar 500 away from the isolation plate 300 along the first direction Z, and the insulating piece 600 is arranged between the busbar 500 and the cover plate 102 along the first direction Z. In addition, along the first direction Z, the insulating piece 600 abuts against the cover plate 102.

[0056] By arranging the insulating piece 600, on the one hand, the busbar 500 and the cover plate 102 are separated, the conduction between the busbar 500 and the cover plate 102 is avoided, the battery pack 1 is prevented from being electrified, and the safety of the battery pack 1 is improved. On the other hand, the insulating piece 600 can support the cover plate 102. When the cover plate 102 is pressed by an external force (for example, when the battery pack 1 is located at the bottom of the vehicle, the passengers jump on the vehicle or the external force hits the bottom of the vehicle, the force of the bottom of the vehicle can be transmitted to the battery pack to form a downward pressure or an impact force), at this time, the insulating piece 600 can resist the pressure of the cover plate 102 towards the busbar 500 and the battery 210 and the possible deformation, thereby absorbing the pressure of the cover plate 102, and further avoiding the cover plate 102 from being in contact with the busbar 500 due to a large displacement, thereby strengthening the structural strength of the battery pack 1.

[0057] It should be noted that the abutment of the insulating piece 600 and the cover plate 102 can be direct contact connection of the insulating piece 600 and the cover plate 102, so that the insulating piece 600 can receive the pressure transmitted from the cover plate 102. Alternatively, the insulating piece 600 and the cover plate 102 can be indirectly in contact, for example, the outer surface of the cover plate 102 is covered with an insulating film, and the insulating piece 600 directly contacts the insulating film, but the cover plate 102 can still transmit the pressure to the insulating piece 600, so that the insulating piece 600 can support the cover plate 102.

[0058] The insulating piece 600 can be made of insulating rubber or insulating silica gel. At this time, when the battery pack 1 is pressed, the insulating piece 600 can elastically deform to absorb the pressure between the busbar 500 and the cover plate 102, thereby reducing the influence of processing errors or assembly errors, improving production efficiency and yield. In addition, when the cover plate 102 is pressed by an external force, the insulating piece 600 can elastically deform to absorb the pressure of the cover plate 102, thereby reducing the deformation amplitude of the cover plate 102, and further avoiding the cover plate 102 from being in contact with the busbar 500 due to the stress, thereby supporting the cover plate 102 and improving the structural strength of the battery pack 1.

[0059] As shown in FIG. 1, the battery pack 1 comprises a box body 100, a plurality of batteries 210, a busbar 500, a cover plate 102, and an isolation plate 300. Figure 2 , Figure 4 and Figure 5As shown, in the technical solution of the embodiment, the battery pack 1 has a second direction Y intersecting the first direction Z, the busbars 500 are provided in plurality, the plurality of busbars 500 are arranged at intervals along the second direction Y, and the insulating member 600 is provided in strip shape and extends along the second direction Y. In this way, one insulating member 600 can correspond to the plurality of busbars 500, the number of insulating members 600 required is reduced, the installation steps are reduced, and the production efficiency is improved.

[0060] As shown, Figure 4 As shown, in the technical solution of the embodiment, the battery pack 1 further includes a first pressing strip 800, the first pressing strip 800 is arranged in the accommodating cavity 101, the first pressing strip 800 is arranged on the side of the isolation plate 300 facing the cover plate 102 along the first direction Z, and the first pressing strip 800 is arranged at intervals with the insulating member 600, at least part of the batteries 210 are arranged along the extension direction of the first pressing strip 800 and connected with the first pressing strip 800, and the side of the first pressing strip 800 away from the isolation plate 300 along the first direction Z abuts against the cover plate 102.

[0061] By means of the first pressing strip 800, the relative positions between the plurality of batteries 210 can be defined, the expansion range of the batteries 210 is reduced, and the structural strength and working stability of the battery pack 1 are improved; at the same time, since the first pressing strip 800 also abuts against the cover plate 102, the first pressing strip 800 can also absorb the force of the cover plate 102 pressing or deforming towards the side of the busbar 500 and the battery 210, thereby preventing the cover plate 102 from contacting and conducting with the busbar 500.

[0062] It should be noted that the abutment of the first pressing strip 800 and the cover plate 102 can be direct abutment or indirect abutment, for example, the surface of the cover plate 102 is wrapped with an insulating film, at this time the first pressing strip 800 and the cover plate 102 are indirectly abutted with the insulating film in between, but the pressure of the cover plate 102 can still be transmitted to the first pressing strip 800, which will not be described herein again.

[0063] For example, in some embodiments, the battery pack 1 has a third direction X intersecting both the first direction Z and the second direction Y, the first pressing strip 800 and the insulating member 600 are arranged at intervals along the first direction Z; in other embodiments, the first pressing strip 800 extends along the third direction X, that is, the extension directions of the first pressing strip 800 and the insulating member 600 can intersect each other, and the first pressing strip 800 is provided with a notch to avoid the insulating member 600. In this way, the first pressing strip 800 and the insulating member 600 will not interfere with each other, which is convenient for layout and will not increase the thickness of the battery pack 1.

[0064] The first pressing strip 800 is connected with the top cover 212 of the battery 210. For example, the first pressing strip 800 and the top cover 212 can be connected by means of adhesion, buckle connection, threaded connection, etc.

[0065] Optionally, the first pressing strip 800 is an adhesive strip, which can be adhered to the top cover 212 of the plurality of batteries 210 arranged in a row or a column, so as to arrange the plurality of batteries 210 in a row or a column.

[0066] By means of the first pressing strip 800, on the one hand, the relative positions between the plurality of batteries 210 can be defined, the expansion range of the battery 210 is reduced, and the structural strength and working stability of the battery pack 1 are improved, and on the other hand, the first pressing strip 800 can support the cover plate 102, further avoiding the contact between the bus bar 500 and the cover plate 102, and improving the safety and structural strength of the battery pack 1.

[0067] As shown in Figure 4 , Figures 6-8 In the technical scheme of the embodiment, the isolation plate 300 is provided with windows 321, the windows 321 are provided through along the first direction Z, and the windows 321 are provided in plurality, and the plurality of windows 321 are provided spaced apart along the extension direction of the first pressing strip 800. The first pressing strip 800 comprises a base body 811 and a protruding rib 810, the base body 811 is connected with the battery 210 through the window 321 on one side along the first direction Z, and the protruding rib 810 is arranged on the other side of the base body 811 along the first direction Z, and the protruding rib 810 abuts against the cover plate 102.

[0068] The protruding rib 810 can be an integral body extending along the length direction of the first pressing strip 800, or the protruding rib 810 can be provided in plurality, each protruding rib 810 extending along the length direction of the first pressing strip 800, and the plurality of protruding ribs 810 are provided spaced apart along the length direction of the first pressing strip 800.

[0069] By means of the window 321, the top cover 212 of the battery 210 can be exposed from the window 321, the connection between the first pressing strip 800 and the top cover 212 of the battery 210 can be realized, the structural strength of the first pressing strip 800 can be increased by means of the protruding rib 810, the probability of damage of the first pressing strip 800 in the process of carrying, transporting and assembling is reduced, and the effect of limiting the expansion range of the battery 210 by the first pressing strip 800 is better. Further, along the first direction Z, the side of the protruding rib 810 away from the base body 811 is flush with the side of the insulating piece 600 away from the bus bar 500.

[0070] In this way, while realizing that the insulating piece 600 and the first pressing strip 800 abut against the cover plate 102, the thickness of the battery pack 1 can be avoided from being increased, and the flat setting of the battery pack 1 is facilitated.

[0071] As shown in Figure 4 , Figure 7 and Figure 8 In the technical scheme of the embodiment, the isolation plate 300 is provided with a first area 310 and a second area 320 (as shown in Figure 7The first area 310 and the second area 320 are schematically shown by the dashed lines, and the first area 310 and the second area 320 can be multiple. The multiple first areas 310 and the multiple second areas 320 are arranged alternately along the third direction X. The busbar 500 is arranged in the first area 310, and the second area 320 is provided with a window 321. The first area 310 is arranged in position corresponding to the pole 211, and the top cover 212 is exposed from the window 321. Along the first direction Z, the second area 320 protrudes towards the direction of the battery pack 200 relative to the first area 310.

[0072] In this way, the first area 310 and the top cover 212 have a first space along the first direction Z for accommodating the pole 211, facilitating the connection between the busbar 500 and the pole 211. Moreover, the second area 320 is close to the top cover 212, which is conducive to the connection between the first pressing strip 800 and the top cover 212.

[0073] In addition, as shown in Figure 4 and Figure 7 The isolation plate 300 is provided with multiple protrusions 323. The protrusions 323 protrude away from the battery 210 along the first direction Z. Adjacent protrusions 323 are arranged at intervals and form first grooves 325. The first grooves 325 are multiple, and the multiple first grooves 325 are arranged at intervals. The first pressing strip 800 is arranged in the first grooves 325.

[0074] By arranging multiple protrusions 323, the second area 320 forms a concave-convex structure, which can increase the structural strength of the second area 320, thereby increasing the structural strength of the isolation plate 300. Moreover, the protrusions 323 can limit the relative position between the first pressing strip 800 and the isolation plate 300, avoid the relative displacement between the isolation plate 300 and the first pressing strip 800, and ensure the working reliability of the battery pack 1.

[0075] Further, along the first direction Z, the side of the protrusion 323 away from the battery 210 does not exceed the isolation plate 300 located in the first area 310. In this way, the thickness of the isolation plate 300 is not increased, which is conducive to reducing the size of the battery pack 1 in the first direction Z and achieving the flat arrangement of the battery pack 1.

[0076] As shown in Figure 5 In the technical scheme of the embodiment, the battery pack 1 further includes a second pressing strip 830. The second pressing strip 830 is arranged in the accommodating cavity 101. The second pressing strip 830 is arranged on the side of the isolation plate 300 facing the battery 210 along the first direction Z. The second pressing strip 830 and the insulating member 600 are arranged at intervals. At least part of the batteries 210 are arranged along the extension direction of the second pressing strip 830 and connected with the second pressing strip 830.

[0077] For example, the first pressing strip 800 and the second pressing strip 830 can be simultaneously arranged in the battery pack 1, or only one of the first pressing strip 800 and the second pressing strip 830 is arranged in the battery pack 1.

[0078] The second pressing strip 830 can limit the relative positions between the plurality of batteries 210, reduce the expansion range of the batteries 210, and improve the structural strength and working stability of the battery pack 1. In addition, the second pressing strip 830 has a larger contact area with the battery pack 200, and the limiting effect on the expansion range of the batteries 210 is better.

[0079] Further, as shown in Figure 5 The second recess 326 is arranged on the side of the isolation plate 300 facing the battery 210 along the first direction Z, the opening of the second recess 326 faces the battery 210, and a plurality of second recesses 326 are arranged at intervals. The second pressing strip 830 is arranged in the second recess 326.

[0080] In this way, the relative positions between the second pressing strip 830 and the isolation plate 300 are fixed, and the size of the second pressing strip 830 protruding from the surface of the isolation plate 300 can be reduced. The size of the second pressing strip 830 protruding from the surface of the isolation plate 300 is small, or the second pressing strip 830 does not protrude from the surface of the isolation plate 300. The distance between the isolation plate 300 and the top cover 212 can be reduced, the thickness of the battery pack 1 can be reduced, and the stable connection between the bus bar 500 and the pole 211 can be ensured.

[0081] As shown in Figure 4 When the battery pack 1 includes the first pressing strip 800, the first pressing strip 800 can be arranged on the central axis of the second area 320. As shown in Figure 5 When the battery pack 1 includes the second pressing strip 830, the second pressing strip 830 can be arranged on the central axis of the second area 320 in the embodiment. In this way, the stress of the second area 320 is uniform, the probability of stress concentration of the second area 320 is reduced, and the probability of damage of the isolation plate 300 is reduced. In other embodiments, the battery pack 1 can include the first pressing strip 800 and the second pressing strip 830. At this time, the two different structures of the first pressing strip 800 and the second pressing strip 830 are arranged on the same isolation plate 300, for example, the first pressing strip 800 and the second pressing strip 830 are arranged at intervals, and details are not described herein.

[0082] In some embodiments not shown in the drawings, the first area 310 is provided with a transverse slot (not shown in the drawings) extending along the first direction Z, and the insulating piece 600 is arranged in the transverse slot. In this way, the relative positions between the isolation plate 300 and the insulating piece 600 are stable, the connection strength between the isolation plate 300 and the insulating piece 600 is high, and the insulating piece 600 is not easy to swing relative to the isolation plate 300.

[0083] As Figures 6-10 shown in the technical scheme of the embodiment, the battery pack 1 further comprises an information acquisition assembly 400 located between the isolation plate 300 and the battery 210 along the first direction Z. The information acquisition assembly 400 can be used to acquire voltage, current and temperature and other parameter information of the battery pack 200.

[0084] By locating the information acquisition assembly 400 between the isolation plate 300 and the battery pack 200, on the one hand, the information acquisition assembly 400 is closer to the battery pack 200, facilitating the contact between the information acquisition assembly 400 and the battery pack 200, so as to facilitate the information acquisition assembly 400 to acquire voltage, current and temperature and other parameter information of the battery pack 200, on the other hand, the isolation plate 300 can exert pressure on the information acquisition assembly 400 to fix the position of the information acquisition assembly 400, reduce the vibration probability of the information acquisition assembly 400, and be conducive to improving the relative position stability between the information acquisition assembly 400 and the battery pack 200.

[0085] Specifically, as Figure 9 and Figure 10 shown, the information acquisition assembly 400 comprises a main body part 404, a temperature acquisition end 402 and an electric signal acquisition end 403, the temperature acquisition end 402 and the electric signal acquisition end 403 are connected with the main body part 404, the temperature acquisition end 402 extends to the window 321 and contacts with the top cover 212, the electric signal acquisition end 403 is connected with the pole 211, the isolation plate 300 is provided with a pressing sheet 340 and an elastic member 350, the pressing sheet 340 is pressed on the side of the temperature acquisition end 402 away from the top cover 212, and the elastic member 350 is arranged between the pressing sheet 340 and the temperature acquisition end 402.

[0086] The temperature acquisition end 402 contacts with the top cover 212 to acquire the temperature of the battery 210. The electric signal acquisition end 403 is used to acquire voltage, current and other information of the battery 210.

[0087] By arranging the pressing sheet 340, the temperature acquisition end 402 and the top cover 212 can be tightly attached to each other, the heat exchange efficiency between the temperature acquisition end 402 and the top cover 212 is improved, and the temperature detection reliability is higher. The first area 310 can limit the relative position between the electric signal acquisition end 403 and the pole 211. The elastic member 350 can be a sponge block or a rubber block.

[0088] The side of the top cover 212 of the battery 210 facing the isolation plate 300 is provided with an insulating film 213, the insulating film 213 is provided with a via hole 214, and the part of the top cover 212 exposed from the via hole 214 is connected with the temperature acquisition end 402.

[0089] In a second aspect, the utility model provides a kind of electric equipment, and electric equipment includes first aspect battery pack 1.Electric equipment can be vehicle or energy storage device and the like device.

[0090] The utility model discloses an electric equipment, including the battery pack 1 described in any of preceding embodiments.By utilizing first aspect battery pack 1, setting insulating part 600 not only separates busbar 500 with cover plate 102, avoids the conduction between busbar 500 and cover plate 102, improves the security of battery pack 1, moreover, can support cover plate 102, has strengthened the effect of the structure strength of battery pack 1.

[0091] Although the embodiments of the utility model are described in combination with the drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the utility model, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A battery pack having a first direction (Z), characterized by, The battery pack (200) is arranged in the accommodating cavity (101), and the battery pack (200) comprises a plurality of batteries (210), the battery (210) comprises a shell (220), a battery core (230), a top cover (212) and a pole (211), the battery core (230) is arranged in the shell (220), the top cover (212) is arranged on the shell (220), and the pole (211) is arranged on the top cover (212) and electrically connected with the battery core (230). The isolation plate (300) is arranged in the accommodating cavity (101) and located between the top cover (212) and the cover plate (102) along the first direction (Z), and the pole (211) is arranged through the isolation plate (300). The bus bar (500) is arranged in the accommodating cavity (101) and located on the side of the isolation plate (300) facing the cover plate (102) along the first direction (Z), and the bus bar (500) is electrically connected with the pole (211). The insulating part (600) is arranged in the accommodating cavity (101) and arranged between the bus bar (500) and the cover plate (102) along the first direction (Z), and the insulating part (600) abuts against the cover plate (102) along the first direction (Z). The second direction (Y) intersects with the first direction (Z), the bus bar (500) is provided in plurality, the plurality of bus bars (500) are arranged at intervals along the second direction (Y), and the insulating part (600) is arranged in strip and extends along the second direction (Y). Further comprising: The first pressing strip (800) is arranged in the accommodating cavity (101) and arranged on the side of the isolation plate (300) facing the cover plate (102) along the first direction (Z), and the first pressing strip (800) is arranged at intervals with the insulating part (600), at least part of the battery (210) is arranged along the extension direction of the first pressing strip (800) and connected with the first pressing strip (800), and the side of the first pressing strip (800) away from the isolation plate (300) along the first direction (Z) abuts against the cover plate (102).

2. The battery pack of claim 1, wherein, The isolation plate (300) is provided with a window (321) penetratingly arranged along the first direction (Z), and the window (321) is provided in plurality and arranged at intervals along the extension direction of the first pressing strip (800); 3. The battery pack of claim 1, wherein, The first pressing strip (800) comprises a base body (811) and a convex rib (810), the base body (811) is connected with the top cover (212) through the window (321) on one side along the first direction (Z), and the convex rib (810) is arranged on the other side of the base body (811) along the first direction (Z) and abuts against the cover plate (102). ​ 4. The battery pack of claim 3, wherein, ​ ​ 5. The battery pack of claim 4, wherein, A side of the rib (810) away from the base (811) is flush with a side of the insulation piece (600) away from the busbar (500).

6. The battery pack of claim 4, wherein, The isolation plate (300) is provided with a first area (310) and a second area (320), the busbar (500) is arranged in the first area (310), the window (321) is arranged in the second area (320), and the second area (320) protrudes towards the direction of the battery pack (200) relative to the first area (310) along the first direction (Z). The isolation plate (300) is provided with a plurality of protrusions (323), the protrusions (323) are arranged protruding away from the top cover (212) along the first direction (Z), adjacent protrusions (323) are arranged in a spaced manner and form first grooves (325), the first grooves (325) are arranged in a spaced manner, and the first pressing strip (800) is arranged in the first grooves (325).

7. The battery pack of claim 6, wherein, Along the first direction (Z), a side of the protrusion (323) away from the top cover (212) does not exceed the isolation plate (300) in the first area (310).

8. The battery pack of any one of claims 1-7, wherein, The battery pack (1) further comprises: A second pressing strip (830) is arranged in the accommodating cavity (101), arranged on a side of the isolation plate (300) facing the top cover (212) along the first direction (Z), and the second pressing strip (830) is arranged in a spaced manner with the insulation piece (600), and at least part of the battery (210) is arranged along the extension direction of the second pressing strip (830) and connected with the second pressing strip (830).

9. The battery pack of claim 8, wherein, A side of the isolation plate (300) facing the battery (210) along the first direction (Z) is provided with a second groove (326), an opening of the second groove (326) faces the top cover (212), and the second groove (326) is arranged in a spaced manner, and the second pressing strip (830) is arranged in the second groove (326).

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

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