A portable new energy electric vehicle lithium battery

Abstract

The utility model discloses a portable new energy electric vehicle lithium battery, including a shell, a bottom cover, an upper cover, a charge and discharge interface, a communication interface and a battery cell assembly, the battery cell assembly is detachably arranged in the shell, the battery cell assembly includes a plurality of cylindrical lithium ion batteries, a mounting plate, a protective plate, a connecting conductive sheet and an insulating protective cover, the cylindrical lithium ion batteries are detachably fixedly connected to each other, the inner side wall of the mounting plate is concavely provided with a plurality of accommodating grooves, the rear ends of the cylindrical lithium ion batteries are detachably embedded in the accommodating grooves, the protective plate is arranged between the cylindrical lithium ion batteries, the connecting conductive sheets are respectively arranged on the outer side wall of the mounting plate, and the connecting conductive sheets are respectively detachably fixedly connected to the cylindrical lithium ion batteries, and the insulating protective covers are respectively detachably covered on the outer side wall of the mounting plate. The technical solution of the utility model can make the assembly of the lithium battery more convenient and quick, and the batteries and the connecting conductive sheets can be conveniently installed and disassembled.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a portable new energy electric vehicle lithium battery. Background Art

[0002] A lithium battery pack refers to one or more lithium cells plus a battery protection board, with a specific functional output. Lithium battery components are connected in series and in parallel. A parallel battery pack requires that each battery has the same voltage, and the output voltage is equal to the voltage of one battery. A parallel battery pack can provide a stronger current.

[0003] However, the existing lithium batteries for new energy electric vehicles have the problems of cumbersome assembly operations and low efficiency, and the battery cells and connecting conductive plates are mostly connected by welding. This makes the assembly, disassembly and replacement of the battery cells cumbersome, which brings inconvenience to the maintenance of the lithium batteries. Utility Model Content

[0004] The main purpose of the utility model is to propose a portable new energy electric vehicle lithium battery, aiming to solve the technical problems that the existing portable new energy electric vehicle lithium battery assembly operation is cumbersome, inefficient, and brings inconvenience to the maintenance of the lithium battery.

[0005] To achieve the above-mentioned purpose, the portable new energy electric vehicle lithium battery proposed in the utility model includes a shell, a bottom cover, an upper cover, a charge and discharge interface, a communication interface and a battery cell assembly, wherein the bottom cover and the upper cover are detachably covered on the lower end and the upper end of the shell respectively by screws, the charge and discharge interface and the communication interface are arranged on the front end wall of the upper cover, the battery cell assembly is detachably arranged in the shell, the battery cell assembly includes a plurality of cylindrical lithium ion battery cells, a mounting plate, a protective plate, a connecting conductive sheet and an insulating protective cover, the front and rear adjacent cylindrical lithium ion battery cells are detachably fixedly connected, and the inner wall of the mounting plate A plurality of accommodating grooves are recessed, the rear ends of the cylindrical lithium-ion batteries are respectively detachably embedded in the accommodating grooves, the protection plate is arranged between the cylindrical lithium-ion batteries, the connecting conductive sheets are respectively arranged on the outer side walls of the mounting plate, and the connecting conductive sheets are respectively detachably fixedly connected to the cylindrical lithium-ion batteries, the insulating protective covers are respectively detachably covered on the outer side walls of the mounting plate, the cylindrical lithium-ion batteries are all electrically connected to the protection plates, the charging and discharging interfaces and the communication interfaces are respectively electrically connected to the protection plates, and the outer side walls of the insulating protective covers are all arranged in contact with the inner side walls of the shell.

[0006] Optionally, it also includes a fastening screw and a first nut, the front end wall and the rear end wall of the cylindrical lithium ion battery cell are respectively protruding with a screw and a second nut, the screw can be detachably screwed on the second nut setting, and the front and rear adjacent cylindrical lithium ion battery cells are detachably fixedly connected by the screw and the second nut, the bottom of the accommodating groove is respectively recessed with a first through hole, the screw and the second nut are respectively penetrated through the first through hole setting, the connecting conductive sheet is recessed with a plurality of second through holes, the screw is respectively penetrated through the second through hole setting, the first nut is respectively screwed on the screw, the fastening screws are respectively penetrated through the second through hole and screwed on the second nut, the protective plate is recessed with a plurality of third through holes, the screw and the second nut can be penetrated through the third through hole setting.

[0007] Optionally, the outer side wall of the mounting plate is convexly provided with a plurality of plug-in posts, the inner side wall of the insulating protective cover is concavely provided with a plurality of plug-in holes, and the plug-in posts are detachably embedded in the plug-in holes.

[0008] Optionally, it also includes a power switch button and a power indicator light, which are respectively arranged on the upper end wall of the upper cover, and the power switch button and the power indicator light are respectively electrically connected to the protection board.

[0009] Optionally, a handle is further included, and both ends of the handle are respectively connected to the two side walls of the upper cover so as to be rotatable up and down.

[0010] Optionally, the shell, bottom cover and upper cover are all made of aluminum alloy.

[0011] Optionally, the inner side walls of the bottom cover and the upper cover are respectively provided with a limiting flange along the circumferential direction, the limiting flanges are respectively embedded in the shell, and the outer side walls of the limiting flanges are respectively abutted against the inner circumferential wall of the shell.

[0012] The technical scheme of the utility model has the following beneficial effects: According to the technical scheme of the utility model, a screw and a second nut are respectively protruded from the front end wall and the rear end wall of the cylindrical lithium ion battery cell, and the screw can be detachably screwed on the second nut setting. The front and rear adjacent cylindrical lithium ion battery cells are detachably fixedly connected by the screw and the second nut, and the bottoms of the accommodating grooves are respectively recessed with first through holes, and the screw and the second nut are respectively penetrated through the first through hole setting, and the connecting conductive sheet is recessed with a plurality of second through holes, and the screw is respectively penetrated through the second through hole setting, and the first nut is respectively screwed on the screw, and the fastening screws are respectively penetrated through the second through hole and screwed on the second nut, and the protective plate is recessed with a plurality of third through holes, and the screw and the second nut can be penetrated through the third through hole setting, thereby making the assembly of the lithium battery more convenient and quick, and the battery cell and the connecting conductive sheet can be conveniently installed and disassembled, which is convenient for the disassembly and maintenance of the lithium battery, improves efficiency, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0014] Figure 1 This is a schematic diagram of the overall structure of a portable new energy electric vehicle lithium battery according to one embodiment of the utility model;

[0015] Figure 2 This is a schematic diagram of the overall structure of a portable new energy electric vehicle lithium battery from another perspective according to one embodiment of the utility model;

[0016] Figure 3 This is a schematic diagram of the exploded structure of a portable new energy electric vehicle lithium battery according to one embodiment of the utility model;

[0017] Figure 4 This is a schematic diagram of a partially exploded structure of a portable new energy electric vehicle lithium battery according to an embodiment of the utility model;

[0018] Figure 5 This is another partial exploded structural diagram of a portable new energy electric vehicle lithium battery according to one embodiment of the utility model;

[0019] Figure 6 This is another partially exploded structural diagram of a portable new energy electric vehicle lithium battery according to one embodiment of the utility model;

[0020] Figure 7This is another partially exploded structural diagram of a portable new energy electric vehicle lithium battery according to one embodiment of the utility model;

[0021] Figure 8 This is another partial exploded structural schematic diagram of a portable new energy electric vehicle lithium battery according to an embodiment of the utility model.

[0022] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0026] The utility model provides a portable new energy electric vehicle lithium battery.

[0027] like Figures 1 to 8As shown, in one embodiment of the utility model, the portable new energy electric vehicle lithium battery includes a shell 101, a bottom cover 102, an upper cover 103, a charge and discharge interface 104, a communication interface 105 and a battery cell assembly 200. The bottom cover 102 and the upper cover 103 are respectively detachably covered on the lower end and the upper end of the shell 101 by screws, the charge and discharge interface 104 and the communication interface 105 are arranged on the front end wall of the upper cover 103, and the battery cell assembly 106 is detachably arranged in the shell 101. The battery cell assembly 200 includes a plurality of cylindrical lithium-ion batteries 201, a mounting plate 202, a protective plate 203, a connecting conductive sheet 204 and an insulating protective cover 205. The front and rear adjacent cylindrical lithium-ion batteries 201 are detachably fixedly connected. The inner wall of the mounting plate 202 is recessed with a plurality of accommodating grooves 2021, the rear ends of the cylindrical lithium-ion battery cells 201 are respectively detachably embedded in the accommodating grooves 2021, the protection plate 203 is arranged between the cylindrical lithium-ion battery cells 201, the connecting conductive sheets 204 are respectively arranged on the outer side walls of the mounting plate 202, and the connecting conductive sheets 204 are respectively detachably fixedly connected to the cylindrical lithium-ion battery cells 201, the insulating protective covers 205 are respectively detachably covered on the outer side walls of the mounting plate 202, the cylindrical lithium-ion battery cells 201 are all electrically connected to the protection plate 203, the charging and discharging interface 104 and the communication interface 105 are respectively electrically connected to the protection plate 203, and the outer side walls of the insulating protective covers 205 are all arranged in contact with the inner side walls of the shell 101.

[0028] Specifically, it also includes a fastening screw (not shown) and a first nut (not shown), the front end wall and the rear end wall of the cylindrical lithium ion battery cell 201 are respectively convexly provided with a screw rod 2011 and a second nut 2012, the screw rod 2011 is detachably screwed on the second nut 2012, and the front and rear adjacent cylindrical lithium ion battery cells 201 are detachably fixedly connected by the screw rod 2011 and the second nut 2012, and the bottom of the accommodating groove 2021 is respectively concavely provided with a first through hole 2022, and the screw rod 2011 and the second nut 2012 are respectively penetrated through the first through hole 2022, and the conductive The sheet 204 is recessed with a plurality of second through holes 2041, the screws 2011 are respectively inserted into the second through holes 2041, the first nuts are respectively screwed on the screws 2011, the fastening screws are respectively inserted into the second through holes 2041 and screwed on the second nuts 2012, the protection plate 203 is recessed with a plurality of third through holes 2031, the screws 2011 and the second nuts 2012 can be inserted into the third through holes 2031, thereby making the assembly of the lithium battery more convenient and quick, and the battery cell and the connecting conductive sheet can be easily installed and disassembled, which is convenient for the disassembly and maintenance of the lithium battery and improves efficiency.

[0029] Specifically, the outer wall of the mounting plate 202 is provided with a plurality of plug-in posts 2023, and the inner wall of the insulating protective cover 205 is provided with a plurality of plug-in holes 2051, and the plug-in posts 2023 are detachably embedded in the plug-in holes 2051, thereby making the assembly of the insulating protective cover more convenient and quick.

[0030] Specifically, it also includes a power switch button 106 and a battery indicator light 107. The power switch button 106 and the battery indicator light 107 are respectively arranged on the upper end wall of the upper cover 103, and the power switch button 106 and the battery indicator light 107 are respectively electrically connected to the protection board 202, thereby improving the safety of the lithium battery.

[0031] Specifically, it also includes a handle 108, and both ends of the handle 108 are respectively connected to the two side walls of the upper cover 103 so as to be rotatable up and down, so that the lithium battery is more convenient to carry.

[0032] Specifically, the housing 101 , the bottom cover 102 and the upper cover 103 are all made of aluminum alloy. Aluminum alloy is strong and durable, and has strong thermal conductivity, which facilitates rapid heat dissipation of the lithium battery.

[0033] Specifically, the inner walls of the bottom cover 102 and the upper cover 103 are respectively provided with a limiting flange 109 along the circumferential direction, the limiting flanges 109 are respectively embedded in the shell 101, and the outer side walls of the limiting flanges 109 are respectively abutted against the inner circumferential wall of the shell 101, playing the role of limiting and aligning, so that the assembly between the bottom cover 102 and the upper cover 103 and the shell is more convenient, quick, firm and reliable.

[0034] Specifically, the utility model provides a screw and a second nut protruding from the front end wall and the rear end wall of the cylindrical lithium ion battery cell respectively, the screw can be detachably screwed on the second nut setting, and the front and rear adjacent cylindrical lithium ion battery cells are detachably fixedly connected by the screw and the second nut, the bottom of the accommodating groove is respectively concavely provided with a first through hole, the screw and the second nut are respectively penetrated through the first through hole setting, the connecting conductive sheet is concavely provided with a plurality of second through holes, the screw is respectively penetrated through the second through hole setting, the first nut is respectively screwed on the screw, the fastening screw is respectively penetrated through the second through hole and screwed on the second nut, the protective plate is concavely provided with a plurality of third through holes, the screw and the second nut can be penetrated through the third through hole setting, thereby making the assembly of the lithium battery more convenient and quick, and the battery cell and the connecting conductive sheet can be conveniently installed and disassembled, which is convenient for the disassembly and maintenance of the lithium battery and improves the efficiency.

[0035] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A portable new energy electric vehicle lithium battery, characterized in that: The battery pack comprises a shell, a bottom cover, an upper cover, a charge and discharge interface, a communication interface and a battery cell assembly, wherein the bottom cover and the upper cover are detachably covered on the lower end and the upper end of the shell respectively by screws, the charge and discharge interface and the communication interface are arranged on the front end wall of the upper cover, and the battery cell assembly is detachably arranged in the shell, and the battery cell assembly comprises a plurality of cylindrical lithium-ion batteries, a mounting plate, a protective plate, a connecting conductive sheet and an insulating protective cover, and the front and rear adjacent cylindrical lithium-ion batteries are detachably and fixedly connected, the inner side wall of the mounting plate is recessed with a plurality of accommodating grooves, the rear ends of the cylindrical lithium-ion batteries are detachably embedded in the accommodating grooves, the protective plate is arranged between the cylindrical lithium-ion batteries, the connecting conductive sheets are respectively arranged on the outer side walls of the mounting plate, and the connecting conductive sheets are respectively detachably and fixedly connected to the cylindrical lithium-ion batteries, the insulating protective covers are respectively detachably covered on the outer side walls of the mounting plate, and the cylindrical The lithium-ion batteries are all electrically connected to the protection plate, the charging and discharging interface and the communication interface are respectively electrically connected to the protection plate, and the outer side walls of the insulating protective cover are respectively arranged in abutment with the inner side walls of the shell, and also include a fastening screw and a first nut. The front end wall and the rear end wall of the cylindrical lithium-ion battery are respectively provided with a screw and a second nut, and the screw can be detachably screwed on the second nut setting. The front and rear adjacent cylindrical lithium-ion batteries are detachably fixedly connected by the screw and the second nut. The bottom of the accommodating groove is respectively recessed with a first through hole, and the screw and the second nut are respectively penetrated through the first through hole setting. The connecting conductive sheet is recessed with a plurality of second through holes, and the screw is respectively penetrated through the second through hole setting. The first nut is respectively screwed on the screw, and the fastening screw is respectively penetrated through the second through hole and screwed on the second nut. The protection plate is recessed with a plurality of third through holes, and the screw and the second nut can be penetrated through the third through hole setting.

2. The portable new energy electric vehicle lithium battery according to claim 1, characterized in that: The outer side wall of the mounting plate is convexly provided with a plurality of plug-in posts, and the inner side wall of the insulating protective cover is concavely provided with a plurality of plug-in holes, and the plug-in posts are detachably embedded in the plug-in holes.

3. The portable new energy electric vehicle lithium battery according to claim 1, characterized in that: It also includes a power switch button and a power indicator light, which are respectively arranged on the upper end wall of the upper cover, and are respectively electrically connected to the protection board.

4. The portable new energy electric vehicle lithium battery according to claim 1, characterized in that: It also includes a handle, and both ends of the handle are respectively connected to the two side walls of the upper cover so as to be rotatable up and down.

5. The portable new energy electric vehicle lithium battery according to claim 1, characterized in that: The shell, bottom cover and upper cover are all made of aluminum alloy.

6. The portable new energy electric vehicle lithium battery according to claim 1, characterized in that: The inner side walls of the bottom cover and the upper cover are respectively provided with a limiting flange along the circumferential direction, the limiting flanges are respectively embedded in the shell, and the outer side walls of the limiting flanges are respectively abutted against the inner circumferential wall of the shell.

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