Novel battery pack

Abstract

The utility model discloses a novel battery pack. The novel battery pack comprises a box body, a box cover is arranged at the top of the box; a battery module is arranged in an inner cavity of the box body; the battery module comprises a plurality of transversely-arranged battery combinations which are transversely distributed; each transverse row battery combination comprises a plurality of batteries which are transversely distributed; longitudinally distributed battery contact plates are vertically arranged in the inner cavity of the box body; the front end and the rear end of the battery contact plate are fixedly connected with the opposite sides of the front panel and the rear panel of the box body respectively; the right end surface of each horizontal row of battery combination is attached to the left side surface of the battery contact plate; and an electrical cavity for arranging electrical elements is formed among the upper surface of the bottom plate of the box body, the right side surface of the battery contact plate, the left side wall of the right panel of the box body and the bottom surface of the box cover. According to the utility model, after the battery is expanded after being used for a long time, the problem of bad deformation of the shell of the battery pack box body caused by direct contact between the expanded battery cell and the shell of the battery pack box body is effectively avoided, and normal installation and use of the battery pack are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery technology field especially a novel battery package. BACKGROUND

[0002] With the development of automation technology and artificial intelligence, more and more intelligent robots are applied to industry, service industry, medical treatment and other fields. Intelligent robots need to run independently, and stable and efficient battery system is the basis for its persistent work and completion of complex tasks.

[0003] The application scene of the robot has strict requirements on the weight of the battery. The traditional lead-acid battery or heavy battery will increase the total weight of the robot, affecting its running efficiency. Lithium ion battery has become the current mainstream choice due to its lightweight and high energy density characteristics.

[0004] After long-time charging and discharging, the thickness of the battery will change, and the battery will swell. However, the existing battery package including multiple lithium ion batteries has unreasonable structure design,

[0005] The swollen battery cell directly contacts the battery package box shell, which will cause the battery package box shell to deform abnormally. Since the installation space of the battery package is limited, when the battery cell swells, the battery package box deforms and swells, which causes installation failure or damages other components in the narrow installation space of the battery package use equipment.

[0006] Therefore, it is urgent to develop a technology that can solve the above technical problems. UTILITY MODEL CONTENTS

[0007] The utility model aims at the technical defects existing in the prior art, and provides a novel battery package.

[0008] Therefore, the utility model provides a novel battery package, which comprises a top-opened and hollow box body,

[0009] The top of the box body is provided with a box cover;

[0010] The inner cavity of the box body is provided with a battery module;

[0011] The battery module comprises a plurality of horizontal battery combinations distributed horizontally;

[0012] Each horizontal battery combination comprises a plurality of batteries distributed horizontally;

[0013] The inner cavity of the box body is vertically provided with a battery contact plate distributed longitudinally;

[0014] The battery contact plate and the left panel of the box body are arranged in parallel with each other;

[0015] The front and back ends of the battery contact plate are fixedly connected with the opposite sides of the front panel and the back panel of the box body respectively;

[0016] The right end surface of each horizontal row of battery combinations is in close contact with the left side surface of the battery contact plate;

[0017] The battery contact plate is welded with a reinforcing fixed beam on the right side surface of the non-contact battery module;

[0018] An electrical cavity for arranging electrical elements is formed between the upper surface of the bottom plate of the box body, the right side surface of the battery contact plate, the left side wall of the right panel of the box body and the bottom surface of the box cover;

[0019] A protection plate mounting bracket is arranged on the right side wall of the battery contact plate;

[0020] A protection plate is arranged on the protection plate mounting bracket;

[0021] The protection plate is located in the electrical cavity;

[0022] A protection plate lower insulating sheet is bonded to the position directly below the protection plate on the upper surface of the bottom plate of the box body;

[0023] A box cover insulating plate is arranged on the bottom surface of the box cover in a position corresponding to the electrical cavity;

[0024] The box cover insulating plate is located directly above the protection plate.

[0025] As can be seen from the technical scheme provided by the utility model, compared with the prior art, the utility model provides a novel battery pack, the structural design of which is scientific, can effectively avoid the problem of poor deformation of the battery pack box body shell caused by the direct contact of the expanded battery cell with the battery pack box body shell after the long-time use of the battery, guarantees the normal installation and use of the battery pack, prolongs the service life of the battery pack and has great practical significance. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The utility model provides an assembly diagram of a novel battery pack (box cover diagram is omitted);

[0027] Figure 2 The utility model provides a three-dimensional explosion decomposition schematic view of a novel battery pack;

[0028] Figure 3 The utility model provides a three-dimensional structure schematic view of a box body of a novel battery pack;

[0029] In the drawing, 1, box cover, 2, box cover insulating plate (polycarbonate PC material), 3, module pressing plate, 4, first series busbar, 5, output busbar;

[0030] 6, battery, 7, module side buffer foam, 8, protection plate mounting bracket, 9, protection plate, 10, protection plate lower insulating sheet;

[0031] 11, insulator, 12, box, 13, first gland, 14, second gland, 15, communication connector;

[0032] 16, spring handle, 17, module bottom insulating sheet, 18, battery interval buffer foam, 19, battery interval insulating sheet, 20, module end face insulating sheet;

[0033] 21, welding insulating plate (polycarbonate PC material), 22, second series bus bar. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0035] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" 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 referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0036] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "setting" should be understood broadly, for example, it can be fixedly connected, set, or detachably connected, set, or integrally connected, set. For those skilled in the art, the specific meanings of the above terms in the present patent can be understood according to the specific circumstances.

[0037] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0038] Referring to Figures 1 to 3 The utility model provides a novel battery pack, include: the top opening, hollow box body 12,

[0039] The top of the box body 12 is provided with a box cover 1.

[0040] The inner cavity of the box body 12 is provided with a battery module.

[0041] The battery module comprises a plurality of (for example, three) horizontal row battery combinations distributed horizontally.

[0042] Each horizontal row battery combination comprises a plurality of (for example, four) batteries 6 distributed horizontally.

[0043] The inner cavity of the box body 12 is vertically provided with a battery contact plate 120 (that is, as a battery baffle) distributed longitudinally (that is, along the long edge of the box body 12).

[0044] The battery contact plate 120 is arranged in parallel with the left panel of the box body 12.

[0045] The front and rear ends of the battery contact plate 120 are fixedly connected (for example, welded) to the sides opposite to the front panel and the rear panel of the box body 12, respectively.

[0046] The right end surface (that is, the right end surface of the rightmost battery 6) of each horizontal row battery combination is fitted to the left side surface of the battery contact plate 120.

[0047] The battery contact plate 120 is welded with a reinforcing fixed beam 123 distributed longitudinally (that is, front and rear distribution) on the side (that is, the right side surface) not in contact with the battery module.

[0048] Between the upper surface of the bottom plate of the box body 12, the right side surface of the battery contact plate 120, the left side wall of the right panel of the box body 12, and the bottom surface of the box cover 1, an electrical cavity 121 for arranging electrical elements (for example, a protection plate 9) is formed.

[0049] In the utility model, specifically, the front and rear ends of the reinforcing fixed beam 123 are respectively welded and fixed to the sides opposite to the front panel and the rear panel of the box body 12.

[0050] In the utility model, specifically, the left panel of the box body 12 is welded with a reinforcing rib 122 distributed longitudinally at the position opposite to the battery contact plate 120.

[0051] The reinforcing rib 122 is located on the side of the left panel of the box body 12 facing the batteries 6.

[0052] The front and rear ends of the reinforcing rib 122 are respectively welded and fixed to the sides opposite to the front panel and the rear panel of the box body 12, thereby increasing the strength of the left panel (that is, the welded end plate) on the box body 12.

[0053] It should be noted that, for the utility model, in the contact direction with the end face of the battery 6 in the box body 12, the battery contact plate 120 (that is, the baffle) is arranged by welding, and a one-side cavity (electrical cavity 121) is integrally welded, after the expansion of the battery (usually the thickness direction expands), the battery contact plate 120 absorbs certain deformation, prevents the deformation of the shell of the box body 12 directly contacting the battery 6, and further causes the influence on the use of the battery pack. Meanwhile, on the other side of the transverse battery combination, the left panel (that is, the welded end plate) on the box body 12 is arranged, and the left panel (that is, the welded end plate) of the box body 12 is welded with the reinforcing rib 122, which is beneficial to enhance the structural strength of the end plate, so that the force generated by the expansion of the battery is mainly released to the direction of the battery contact plate 120 (that is, the baffle), and the certain deformation is absorbed by the battery contact plate 120.

[0054] In the utility model, specifically, the plurality of batteries 6 are connected in parallel, series or series-parallel (that is, the combination of series connection and parallel connection).

[0055] It should be noted that, for the battery pack, the specific way of connecting the plurality of batteries 6 in series, in parallel and in series-parallel is the existing conventional known technology, which will not be repeated here.

[0056] In the utility model, specifically, the box body 12 is a cuboid shape, that is, a square structure, which has good space utilization and universal application range, and is the optimal shape design of the battery pack.

[0057] In the utility model, specifically, the box body 12 adopts Q235 steel material, which ensures the overall strength of the battery pack while greatly reducing the weight of the box body.

[0058] In the utility model, specifically, a plurality of countersunk holes are arranged around the periphery of the box cover 1.

[0059] The box cover 1 is connected with the box body 12 through the countersunk screw.

[0060] Specifically, a ring of flanges is arranged around the top opening of the box body 12.

[0061] A plurality of press-in nuts are arranged on the flanges.

[0062] In the utility model, specifically, on the side opposite to the front panel and the rear panel of the box body 12, a vertical distribution module side edge buffer foam 7 is respectively bonded at positions corresponding to the front and rear sides of the battery module.

[0063] The left and right sides of the battery module are respectively provided (for example, bonded) with a vertical distribution module end surface insulating sheet 20.

[0064] That is, the left panel of the box body 12 and the battery module, and the side of the battery contact plate 120 towards the battery module and the battery module are respectively provided with a module end face insulating sheet 20.

[0065] The upper surface of the bottom plate of the box body 12 is provided with a module bottom insulating sheet 17.

[0066] Between any two adjacent horizontal row battery combinations, a transversely distributed battery inter-insulating sheet 19 is vertically arranged.

[0067] In the utility model, specifically, for each horizontal row battery combination, between any adjacent each battery 6, a battery inter-buffering foam 18 is arranged.

[0068] Specifically, the left and right end faces of each horizontal row battery combination are respectively provided with a battery inter-buffering foam 18 between the battery contact plate 120 and the left panel of the box body 12.

[0069] In the utility model, specifically, the top of the battery module is provided with a welded insulating plate (polycarbonate PC material) 21.

[0070] The welded insulating plate 21 is provided with a pole exposure hole and a pressure relief valve exposure hole at a position corresponding to the pole (including the positive pole and the negative pole) and the pressure relief valve at the top of each battery 6.

[0071] Specifically, the top of the welded insulating plate 21 is bonded with a first series bus bar 4, a second series bus bar 22 and an output bus bar 5 above the pole exposure hole.

[0072] The first series bus bar 4, the second series bus bar 22 and the output bus bar 5 are welded with the poles of the battery module at the top.

[0073] It should be noted that the arrangement and connection mode between the first series bus bar 4, the second series bus bar 22 and the output bus bar 5 and the poles of the plurality of batteries 6 in the battery module is the existing mature battery module series and parallel technology, which can be as shown in the figure, and will not be described here. Figure 1 、 Figure 2

[0074] In the utility model, specifically, two press-in studs are arranged on the right side wall of the battery contact plate 120.

[0075] An insulator 11 and a downwardly bent portion of an output bus bar 5 are arranged on each press-in stud.

[0076] In the utility model, specifically, a protection plate mounting bracket 8 is arranged on the right side wall of the battery contact plate 120.

[0077] ​On the protection board mounting bracket 8, a protection board 9 is provided.

[0078] The protection board 9 is located in the electrical cavity 121.

[0079] On the upper surface of the bottom plate of the box body 12, directly below the protection board 9, a protection board lower insulating sheet 10 is adhesively bonded.

[0080] Specifically, on the bottom surface of the box cover 1, at a position corresponding to the electrical cavity 121, a box cover insulating board (made of polycarbonate PC material) 2 is provided.

[0081] The box cover insulating board 2 is located directly above the protection board 9.

[0082] In the present utility model, specifically, on the top of the battery module, a plurality of (for example, four) module pressing plates 3 arranged longitudinally and distributed horizontally are provided.

[0083] The left and right ends of the module pressing plate 3 are respectively fixedly connected to the upper parts of the opposite sides of the battery contact plate 120 and the left panel of the box body 12.

[0084] Specifically, the shape of the module pressing plate 3 is a "C" shape with an upward opening.

[0085] Specifically, the module pressing plate 3 is located directly above the explosion-proof valve at the top of the battery in each row of battery combinations.

[0086] The module pressing plate 3 is provided with an explosion-proof valve pressure relief port (waist-shaped hole) at a position corresponding to each explosion-proof valve.

[0087] It should be noted that after being bent, the module pressing plate 3 is in a "C" shape, with the two sides folded up and flanged, and holes are arranged on the flanges for subsequent bundling of wire harnesses. Two waist-shaped holes are respectively provided at both ends of the module pressing plate 3 for connecting and fixing to the battery contact plate 120 and the left panel of the box body 12 through screws. Waist-shaped holes of the same size as the battery explosion-proof valves are arranged in the middle section of the module pressing plate 3 to reserve the battery explosion and spraying outlet.

[0088] In the present utility model, specifically, on the front side wall of the front panel of the box body 12, a first gland 13, a second gland 14 and a communication connector 15 are provided.

[0089] In the present utility model, specifically, on the front side wall of the front panel of the box body 12, a spring handle 16 is provided.

[0090] In the present utility model, specifically, the battery 6 is preferably a lithium iron phosphate battery.

[0091] In order to more clearly understand the technical solution of the present utility model, the following describes the specific design and functions of each component in the present utility model.

[0092] In the utility model, specifically realize, first series busbar 4, second series busbar 22 and output busbar 5, for guaranteeing that the whole of module is enough, the temperature of use is in the safe range, all adopt 1.5mm thick aluminum plate blanking, the middle position of first series busbar 4, second series busbar 22 is stamped out arch type, prevents the expansion of battery cell and causes the aluminum row to move up and down and leads to the welding, and first series busbar 4, second series busbar 22 and the pole contact surface of battery exist peephole, for the alignment busbar and the relative position of battery cell.

[0093] In the utility model, specifically realize, the thickness of module side edge buffer foam 7 is 3mm, for buffering the vibration generated when using equipment, thereby protecting the overall stability inside battery pack.

[0094] In the utility model, specifically realize, battery interval buffer foam 18 is placed between two adjacent batteries, for absorbing the expansion extrusion force generated after long time use of battery in battery pack, and absorbing the vibration generated when moving equipment.

[0095] In the utility model, specifically realize, module bottom insulating sheet 17, module end surface insulating sheet 20 adopt 0.5mm thickness PC sheet, guarantee the insulation safety of battery module and box.

[0096] In the utility model, specifically realize, the material of battery contact plate 120 is 1.2mm thickness Q235 steel, and the battery contact plate 120 is welded with the longitudinally distributed (namely front and rear distribution) reinforcing fixed beam 123 on the side (namely right side) of non-contact battery module, which can reduce the box deformation when the battery cell expands, and at the same time, the side of battery contact plate 120 towards battery module is also insulated by the specially set end surface insulating sheet 20, to ensure the insulation between battery module and battery contact plate 120.

[0097] In the utility model, specifically realize, box cover insulating plate 2 and protection plate lower insulating sheet 10 are used to ensure the safe contact between the wire harness connected with the protection plate and the box.

[0098] In the utility model, specifically realize, battery interval insulating sheet 19 plays an insulating role, and ensures the safe contact between batteries.

[0099] In the utility model, specifically realize, welding insulating plate 21 is provided with round holes (pole exposure holes) corresponding to the positions of battery poles on the surface, and a waist-shaped hole (explosion-proof valve exposure hole) corresponding to the explosion-proof valve, and the welding insulating plate 21 is temporarily pasted and fixed on the busbar placed thereon by single-sided adhesive.

[0100] In this utility model, specifically, the insulator 11 is used to support and fix the output busbar 5, while ensuring safe contact between the output busbar 5 and the housing 12.

[0101] In this utility model, it should be noted that the spring handle 16 is installed on the outer side wall of the housing 12 for transferring the battery pack. The spring handle 16 is a conventional structural design and will not be described in detail here.

[0102] In this utility model, specifically, the protective plate mounting bracket 8 is bent into an L-shape for the transfer and installation of the protective plate 9.

[0103] In this utility model, it should be noted that the protection board 9 is a well-known and technically mature module that is widely used in existing battery packs (such as the BMS protection board), and will not be described in detail here. The protection board 9 can be used to ensure battery safety, improve battery performance, extend battery life and optimize battery use, and realize remote monitoring and management.

[0104] To better understand the technical solution of this utility model, the basic assembly process of this utility model is described below.

[0105] First, see Figure 2 As shown, the side buffer foam 7 of the two modules is attached to the opposite side of the front and rear panels of the box 12, the end face insulating sheets 20 of the two modules are attached to the opposite side of the battery contact plate 120 and the left panel of the box 12, and the bottom insulating sheet 17 of the modules is attached to the inner bottom surface of the box 12.

[0106] Then, attach inter-battery buffer foam 18 between two adjacent batteries 6;

[0107] Then, place the batteries 6, which have been covered with the battery buffer foam, into the cavity of the box 12 one by one.

[0108] Then, the first series bus 4 and the second series bus 22 are respectively configured according to... Figure 2 As shown, the first series busbar 4 and the second series busbar 22 are placed on the welding insulation board 21 and temporarily fixed by the single-sided adhesive on the welding insulation board 21.

[0109] It should be noted that, subsequently, the sampling lines can be laser-welded to the temperature acquisition points of each busbar, and the wire bundle can be fixed to the binding port on the welding insulation plate 21 with cable ties to prevent the wire bundle from shaking during equipment operation and causing the sampling terminals to detach. The processed busbars and sampling lines are then integrated and placed on the module, ensuring that the viewing aperture on the busbar coincides with the center point of the cell terminal post to achieve a positioning effect.

[0110] Then, the two insulators 11 are screwed on the rivet studs on the end plate (battery contact plate 120) in the box 12;

[0111] Then, the output busbar 5 is placed on the pole surface of the battery, the peephole on the output busbar 5 is aligned with the midpoint of the battery pole, the waist-shaped hole on one side of the output busbar 5 is vertically bent to align with the screw hole of the insulator 11, and the welding insulating plate 21 is temporarily adhered and fixed by welding;

[0112] Then, the laser welding is used to weld each busbar with the pole surface of the battery;

[0113] Then, the protection plate 9 is fixed on the protection plate mounting bracket 8 using screws;

[0114] Then, the protection plate mounting bracket 8 with the installed protection plate 9 is placed vertically on the bottom surface of the box 12, the waist-shaped holes on both sides of the protection plate mounting bracket 8 pass through the rivet studs on the bottom surface, and finally the nuts are locked and fixed to realize the fixed connection of the bottom plate of the box 12;

[0115] Then, the waist-shaped holes at both ends of the module pressing plate 3 are aligned with the rivet nut hole positions on the cavity end plate (i.e. the battery contact plate 120) and the left panel (a welded end plate) of the box 12, and the module pressing plate 21 is fixed using screws to achieve the fixed limiting effect on the battery module;

[0116] Then, the protection plate lower insulating sheet 10 is pasted below the protection plate 9 to ensure the safe contact of the wire harness with the box 12;

[0117] Then, the first grommet 13, the second grommet 14, and the communication connector 15 are respectively pre-locked through the corresponding hole positions on the box 12. After the communication and power wire harnesses pass through the grommet and communication interface, the grommet is tightened to clamp the wire harness;

[0118] Then, the power wire harness, the sample wire harness, and the communication wire harness are plugged into the protection plate 9; then, the wire harnesses are arranged and bundled using the cable ties at the binding points.

[0119] Then, the box cover insulating plate 2 is pasted on the side of the box cover 1 bottom facing the protection plate 9 to ensure the safe contact of the bent part of the wire harness plugged into it with the box cover 1;

[0120] Finally, the box cover 1 is buckled on the box 12, and the box cover 12 is fixed by countersunk screws to complete the assembly of the entire battery pack.

[0121] In conclusion, the utility model discloses a kind of battery pack of small intelligent robot based on square lithium iron phosphate battery design, using direct-charge type cell placement method, cell arrangement is with the inside of box, through the design of the cavity end plate (i.e. battery contact plate) and the welding end plate (i.e. the left panel of box 12, the left panel is welded with reinforcing rib) of battery and cell expansion contact surface, guarantee the safety of battery pack after long time use, compared with traditional battery pack, the integrated direct-charge battery pack of the application guarantees the safety performance of battery pack, greatly reduces its manufacturing cost, omits redundant structural design, improves the energy density of battery pack, which optimizes the design pain point of traditional battery pack.

[0122] The utility model discloses a kind of lightweight, low cost and high energy density design schemes of intelligent robot battery pack from box structure design and cell layout.

[0123] The above is only preferred embodiment of the utility model, it should be pointed out, for the ordinary skilled person in the prior art, without departing from the principle of the utility model, can make some improvements and refinements, these improvements and refinements also should be considered as the protection scope of the utility model.

Claims

1. A novel battery pack characterized by, The hollow box (12) includes a top opening; The top of the box (12) is provided with a box cover (1); The inner cavity of the box (12) is provided with a battery module; The battery module includes a plurality of transversely distributed horizontal battery combinations; Each horizontal battery combination includes a plurality of batteries (6) transversely distributed; The inner cavity of the box (12) is vertically provided with one longitudinally distributed battery contact plate (120); The battery contact plate (120) is arranged in parallel with the left panel of the box (12); The front and rear ends of the battery contact plate (120) are respectively fixedly connected to the sides opposite to the front panel and the rear panel of the box (12); The right end surface of each horizontal battery combination is in close contact with the left side surface of the battery contact plate (120); The battery contact plate (120) is welded with a reinforcing fixed beam (123) on the right side surface of the non-contact battery module; The bottom surface of the box cover (1), the right side surface of the battery contact plate (120), the left side wall of the right panel of the box (12), and the bottom surface of the box cover (1) form an electrical cavity (121) for arranging electrical elements; The right side wall of the battery contact plate (120) is provided with a protection plate mounting bracket (8); The protection plate mounting bracket (8) is provided with a protection plate (9); The protection plate (9) is located in the electrical cavity (121); The bottom surface of the box cover (1) is provided with a box cover insulation plate (2) at a position corresponding to the electrical cavity (121); The box cover insulation plate (2) is located directly above the protection plate (9). The front and rear ends of the reinforcing fixed beam (123) are respectively welded and fixed to the sides opposite to the front panel and the rear panel of the box (12); 2. The novel battery pack of claim 1, wherein, The left panel of the box (12) is welded with a longitudinally distributed reinforcing rib (122) at a position opposite to the battery contact plate (120); The front and rear ends of the reinforcing rib (122) are respectively welded and fixed to the sides opposite to the front panel and the rear panel of the box (12). The box cover (1) is provided with a countersunk hole around the periphery; 3. The novel battery pack as claimed in claim 1, wherein, The box cover (1) is connected to the box (12) through a countersunk screw. The side opposite to the front panel and the rear panel of the box (12) is respectively attached with one vertically distributed module side edge buffer foam (7) at positions corresponding to the front and rear sides of the battery module; 4. The novel battery pack of claim 1, wherein, The left panel of the box (12) and the battery module, and the side of the battery contact plate (120) facing the battery module and the battery module are respectively provided with one module end surface insulation sheet (20); The upper surface of the bottom plate of the box (12) is provided with a module bottom insulation sheet (17); Between any two adjacent horizontal battery combinations, a transversely distributed battery-to-battery insulation sheet (19) is vertically arranged. For each horizontal battery combination, a battery-to-battery buffer foam (18) is arranged between any two adjacent batteries (6); 5. The novel battery pack as claimed in claim 1, wherein, The left and right end surfaces of each horizontal battery combination are respectively provided with battery-to-battery buffer foams (18) between the battery contact plate (120) and the left panel of the box (12). The top of the battery module is provided with a welded insulation plate (21); 6. The novel battery pack of claim 1, wherein, ​ The welding insulation board (21) is provided with a pole exposure hole and a burst valve exposure hole at a position corresponding to the pole and the burst valve on the top of each battery (6).

7. The novel battery pack of claim 6, wherein, The top of the welding insulation board (21) is bonded with a first series bus bar (4), a second series bus bar (22) and an output bus bar (5) above the pole exposure hole. The first series bus bar (4), the second series bus bar (22) and the output bus bar (5) are welded with the pole on the top of the battery module.

8. The novel battery pack as claimed in claim 1, wherein, Two press rivet studs are arranged on the right side wall of the battery contact plate (120). An insulator (11) and a downwardly bent portion of an output bus bar (5) are arranged on each press rivet stud.

9. The novel battery pack as claimed in any one of claims 1 to 8, wherein, The top of the battery module is provided with a plurality of module pressing plates (3) arranged longitudinally and distributed transversely. The left and right ends of the module pressing plate (3) are respectively fixedly connected to the upper part of the side opposite to the left panel of the battery contact plate (120) and the box (12). The module pressing plate (3) is located directly above the burst valve on the top of each battery in each transverse row of battery combination. The module pressing plate (3) is provided with a burst valve pressure relief port at a position corresponding to each burst valve.

10. The novel battery pack as claimed in any one of claims 1 to 9, wherein, The front side wall of the front panel of the box (12) is provided with a first grommet (13), a second grommet (14) and a communication connector (15). The front side wall of the front panel of the box (12) is provided with a spring handle (16).

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