CN220710477U - Shell for new energy automobile battery pack - Google Patents

Abstract

The utility model relates to a battery assembly of a new energy automobile, in particular to a shell for a battery pack of the new energy automobile, which comprises a lower shell and an upper shell. The lower shell is provided with an inner cavity for accommodating the battery module; the upper shell is arranged on the upper side of the lower shell; the side wall of the inner cavity of the lower shell is provided with a shell connecting part connected with the battery module; the middle part of the lower shell is provided with a middle partition plate extending along the length direction of the lower shell, the middle partition plate is provided with an elastic abutting part, and the elastic abutting part is used for abutting with the battery modules arranged on two sides of the middle partition plate. Through setting up this middle baffle on lower casing, set up elasticity butt spare and casing connecting portion on middle baffle and carry out the butt to the group battery, not only let this structure can make the location of group battery on lower casing more swift, set up middle baffle and elasticity butt spare, can not only separate both sides group battery when the battery module receives vibration or impact, also on horizontal direction simultaneously, as buffer unit for playing the shock-proof effect.

Description

Shell for new energy automobile battery pack

Technical Field

The utility model relates to a battery assembly of a new energy automobile, in particular to a shell for a battery pack of the new energy automobile.

Background

The new energy automobile battery is one of important components of the new energy automobile, and is responsible for storing electric energy and providing power for the new energy automobile. The new energy automobile battery is composed of a battery monomer module, a battery module and a battery pack. The battery module is formed by combining a plurality of battery cell modules, and generally comprises a plurality of battery cell modules, wherein each battery cell module generally comprises a single battery and a sheath or jacket covering the single battery. The battery module has the main function of improving the voltage and the capacity of the battery, so that the battery module can meet the power requirement of a new energy automobile. The battery modules are different in size and shape, and the battery modules of different new energy automobiles are also different in size and shape.

The battery pack is integrally arranged in the battery shell, the battery of the whole new energy automobile is arranged at the position close to the ground of the automobile, and the battery pack is integrally packaged by adopting a detachable shell. At present, when the whole battery pack is installed, each battery module is arranged and installed in the shell one by one through bolts, so that the assembly of the assembled battery pack is more troublesome, the mode of bolt fixing is adopted, the whole battery pack is not perfect enough in shock-resistant buffer performance, the whole battery pack can be positioned quickly, packaging is completed, and meanwhile, the battery pack packaging equipment also has certain shock resistance.

Disclosure of Invention

The utility model aims to provide a battery pack shell which can reliably complete the positioning of the battery pack after the battery pack is integrally assembled and can buffer the whole battery pack, and the battery modules at two sides are extruded and fixed by arranging the partition plate with the elastic abutting piece in the shell, and meanwhile, the partition plate can provide certain buffer for the movement of the battery pack in the shell, so that the safety of the battery pack is improved.

The utility model adopts the scheme that the shell for the battery pack of the new energy automobile comprises a lower shell and an upper shell. The lower shell is provided with an inner cavity for accommodating the battery module; the upper shell is arranged on the upper side of the lower shell and is used for closing the inner cavity after being in butt joint with the lower shell; wherein, the side wall of the inner cavity of the lower shell is provided with a shell connecting part for connecting with a battery module; the middle part of lower casing is provided with the middle septum that extends along lower casing length direction, and this middle septum is provided with elasticity butt spare, and this elasticity butt spare is used for with arrange in the battery module butt of this middle septum both sides side.

According to the utility model, the middle partition plate is arranged on the lower shell, and the elastic abutting piece and the shell connecting part are arranged on the middle partition plate to abut and connect the battery packs, so that the battery packs can be positioned on the lower shell more quickly and more stably, in addition, when the battery module is vibrated or impacted, the middle partition plate and the elastic abutting piece can separate the battery packs on two sides, reduce mutual interference between the battery packs on two sides, and meanwhile, in the horizontal direction, the battery packs are provided with shock-resistant and vibration-resistant effects as a buffer part, and normal operation of the battery is ensured.

Further, hollow grooves are arranged on the middle partition plate and are arranged along the length direction of the middle partition plate; and one part of the elastic abutting piece is fixed in the hollow groove, and one part of the elastic abutting piece is exposed out of the hollow groove.

Further, a skylight is arranged on the top surface of the middle partition, and a part of the elastic abutting piece is exposed out of the top surface of the middle partition through the skylight and is used for abutting against the upper shell. The side panel of middle baffle sets up the side window, a portion of elasticity butt spare exposes in the middle baffle side through this side window for with battery module butt.

Further, the elastic abutting piece is an elliptic spring piece, two ends of the spring piece are fixed at the bottom of the hollowed-out groove, one part of the spring piece extends out of the skylight, and the other part of the spring piece is exposed out of two sides of the middle partition plate through the side window and is used for being pressed down by the upper shell when the part of the spring piece extending out of the skylight is exposed out of the two sides of the middle partition plate.

Further, the spring piece is a copper plate or a spring steel plate or a rubber plate.

Further, a base plate group is arranged on the lower side plate surface of the upper shell; the pad group comprises a middle pad and a side pad; the middle backing plate is abutted with the top surface of the middle partition plate, and the side backing plate is used for being abutted with the battery module.

Further, an inward sinking groove which is recessed towards the inner direction of the upper shell is formed in the lower side plate surface of the upper shell, and the inward sinking groove corresponds to and is matched with the top surface of the middle partition plate; the middle backing plate is fixed on the bottom of the invagination groove.

Further, the middle partition is detachably connected with the lower shell.

Further, the inner side wall of the lower shell protrudes to the inner cavity of the lower shell to form a part, a vertical clamping groove is formed in the part of the protruding part, the vertical clamping groove is the connecting part of the shell, and the vertical clamping groove is used for being matched with a vertical clamping strip arranged on the side part of the battery module.

Further, through holes are distributed on the middle partition plate.

Further, the elastic abutting piece is any one of a spring piece, a conical spring, a rubber pad or a foam cushion which are distributed on two side plate surfaces of the middle partition plate.

The utility model also provides a protective sleeve and a device for the new energy automobile battery module, which can be used for conveniently disassembling and assembling the new energy automobile battery module, and the battery can be conveniently assembled and disassembled and can be stably assembled in the protective sleeve.

The protective sleeve is used for being sleeved on the side wall of a battery, a module plug-in unit which can extend to the side is arranged on the protective sleeve, and a slot matched with the module plug-in unit is arranged on the other side of the protective sleeve;

the module plug-in unit can be arranged in the protective sleeve when retracted, the top surface of the protective sleeve is provided with a window, and the module plug-in unit is provided with a protruding part exposed out of the window or arranged in the window and used for driving the module plug-in unit to stretch out and draw back on the protective sleeve when the protruding part is shifted to move in the window.

The protective sleeve for the new energy automobile battery module is used as a sleeve of the module to protect single batteries, and simultaneously is used as a connector of a single module, and the module units which are sequentially arranged are mutually connected into a whole row of battery packs through the module plug-in components on the protective sleeve, so that when the module is installed, only the arranged module units are aligned, and then the module plug-in components are sequentially plugged, so that the module units of the row are sequentially connected front and back, a whole is formed, and when the module units of the row are fixed, the first and the last module units of the row are only used, or the main module units of the module units are fixed in the battery pack shell, so that the whole row of module units can be fixed without repeated fixing operation on each module unit, and the rapid installation and fixation of the battery module are realized.

Further, the protective sleeve is of a quadrangular cylindrical structure with upper and lower openings; the module plug-in unit is arranged in one side wall of the protective sleeve; the module plug-in unit is a plate body.

Further, two sides of the protruding part are extended with limit parts; in the two opposite directions of the poking of the protruding part, the limiting part is arranged between the protruding part and the inner wall of the window, and when the limiting part is abutted against the inner wall of the window, a gap is kept between the protruding part and the inner wall of the window.

Further, the protective cover is a box-shaped structure with an open top made of any one of polystyrene, polypropylene and polycarbonate.

Further, the lower part of the protective sleeve is provided with a side hole which is communicated with the inside and the outside of the protective sleeve in the lateral direction; the side hole is connected with a cam piece through a spring hinge, and the spring hinge is positioned above the cam piece; in the loose state of the spring hinge, one end of the cam piece is exposed out of the outer wall of the protective sleeve, and the other end of the cam piece is accommodated in the lower part of the protective sleeve; and in the contracted state of the spring hinge, one end of the cam piece is accommodated in the outer wall of the protective sleeve, and the other end of the cam piece stretches into the inner cavity of the protective sleeve.

Further, the outer wall part of the side hole positioned at the upper side of one end of the inner cavity of the protective sleeve forms a downward extending slope; the slope is used for limiting the rotation angle of the cam piece to an acute angle towards the inner cavity of the protective sleeve. When a part of the cam piece is inserted into a battery groove described below, the battery is prevented from moving in the vertical direction, so that the stability of the battery in the protective sleeve is ensured.

The utility model also provides a new energy automobile battery protection device, which comprises the protection sleeve for the new energy automobile battery module in the first aspect and the improvement scheme thereof; the battery protection device of the new energy automobile further comprises a lower shell and an upper shell, wherein a shell connecting part matched with the unit sleeve connecting part on the protective sleeve is arranged on the inner side wall of the lower shell; the lower side edge of the upper shell is connected with the upper side edge of the lower shell, and the lower side plate surface of the upper shell is in butt joint with the top end of the protective sleeve.

Through adopting this new energy automobile battery protector, when assembling battery module, need not to adopt the mode of bolt fastening one by one and fix the module unit on lower casing, only need with the module unit to the back through the butt joint of module plug-in components, can initially accomplish the module unit of lining fixed on lower casing on the horizontal direction, later cover the casing, accomplish the installation of whole battery, it is swift, convenient.

Further, the inner side wall of the lower shell protrudes to the inner cavity of the lower shell to form a part, and a vertical clamping groove is formed in the part protruding to the inner cavity of the lower shell and is the shell connecting part; the side part of the protective sleeve is provided with a vertical clamping strip which is matched with the clamping groove, and the vertical clamping strip is the unit sleeve connecting part.

Further, the clamping grooves are arranged on the inner side wall of the lower shell along the length direction of the lower shell.

The utility model also provides a new energy automobile battery, which comprises a single battery shell, wherein the lower part of the single battery shell is a base, a groove is arranged on the side edge of the base and is used for being matched with the cam piece in the protective sleeve for the new energy automobile battery module in the first aspect; the upper part of the battery is provided with a convex edge which extends outwards and is used for being abutted with the inner wall of the protective sleeve. Through adopting this new energy automobile battery's recess and foretell cam member to cooperate, can be more firm stable battery.

Drawings

In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present utility model, the drawings that are needed in the examples will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and that other related drawings may be obtained from these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view illustrating the structure of a protective cover for a battery module of a new energy automobile according to embodiment 2 or 3;

fig. 2 is a schematic view for explaining a unit cell in an embodiment;

fig. 3 is a schematic view for explaining that the unit cell of example 2 or 3 is being assembled into a protective sheath;

fig. 4 is a schematic view for explaining the extension of a module insert of the protective cover for a battery module of a new energy automobile of example 2 or 3;

fig. 5 is a schematic view for explaining one side of a boot slot for a battery module of a new energy automobile of embodiment 2 or 3;

FIG. 6 is a schematic diagram for explaining the connection of three cases of embodiment 2 or 3 when the battery cell is not mounted in the protective cover;

FIG. 7 is a schematic view partly in section illustrating the stacking of a module unit and an adjacent module unit according to embodiment 3;

FIG. 8 is a schematic view for explaining the relaxation of the spring hinge in the module unit of embodiment 3;

fig. 9 is a partially enlarged schematic view for explaining a portion at a in fig. 8;

fig. 10 is a schematic view for explaining an upper case and a lower case of a battery protection device for a new energy automobile of embodiment 4;

fig. 11 is a schematic top view showing a battery protector of a new energy automobile of example 4 after opening an upper case;

fig. 12 is a view for explaining a case for a battery pack of a new energy automobile of embodiment 1;

fig. 13 is a schematic plan view for explaining the lower case of embodiment 1;

fig. 14 is a schematic view from below for explaining the upper case of embodiment 1;

fig. 15 is a schematic view for explaining the case where the elastic abutment on the intermediate separator of embodiment 1 is not pressed;

fig. 16 is a schematic view for explaining the case where the elastic abutment on the intermediate separator of embodiment 1 is pressed;

FIG. 17 is a partially enlarged schematic illustration of the use at B in FIG. 16;

reference numerals: 1-protective sleeve, 110-module plug-in unit, 111-protruding part, 112-limit part, 120-slot, 130-window, 140-slope, 150-cam piece, 160-clamping strip, 2-lower shell, 210-clamping groove, 220-middle baffle, 221-elastic abutting piece, 222-hollowed groove, 223-skylight, 224-side window, 3-upper shell, 310-backing plate group, 311-middle backing plate, 312-side backing plate, 320-inward sink, 4-single battery shell and 410-groove.

Detailed Description

Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Example 1

As shown in fig. 12 to 17, a housing for a battery pack of a new energy vehicle includes a lower housing 2 and an upper housing 3. The lower case 2 has an inner cavity for receiving the battery module; the upper shell 3 is arranged on the upper side of the lower shell 2 and is used for closing the inner cavity after being butted with the lower shell 2; wherein, the side wall of the inner cavity of the lower shell 2 is provided with a shell connecting part for connecting with a battery module; the middle part of the lower case 2 is provided with a middle spacer 220 extending along the length direction of the lower case 2, the middle spacer 220 is provided with elastic abutment members 221, and the elastic abutment members 221 are used for abutting against the battery modules arranged at both sides of the middle spacer 220.

According to the utility model, the middle partition plate 220 is arranged on the lower shell 2, and the elastic abutting piece 221 and the shell connecting part are arranged on the middle partition plate 220 to abut and connect the battery packs, so that the battery packs can be positioned on the lower shell 2 more quickly and more stably, in addition, when the battery module is vibrated or impacted, the middle partition plate 220 and the elastic abutting piece 221 can separate the battery packs on two sides, reduce the mutual interference between the battery packs on two sides, and simultaneously provide an impact-resistant vibration-resistant effect for the battery packs as a buffer part in the horizontal direction, so that the normal operation of the battery is ensured.

Based on the above embodiment, specifically, the hollow grooves 222 are arranged on the middle partition 220, and the hollow grooves 222 are arranged along the length direction of the middle partition 220; a portion of the elastic contact element 221 is fixed in the hollow groove 222, and a portion of the elastic contact element 221 is exposed out of the hollow groove 222. The exposed portion here is a portion for abutting against the battery pack or the upper case 3.

The top surface of the middle partition 220 is provided with a skylight 223, and a part of the elastic abutting piece 221 is exposed to the top surface of the middle partition 220 through the skylight 223 and is used for abutting against the upper shell 3. The side panel of the middle spacer 220 is provided with a side window 224, and a part of the elastic contact 221 is exposed to the side of the middle spacer 220 through the side window 224 for contact with the battery module. Like this, when last casing 3 extrudees elasticity butt spare 221 downwards, let the both sides part of elasticity butt spare 221 outwards extrude promptly, in order to butt the group battery of middle baffle 220 both sides, when making the maintenance battery, only need open last casing 3, elasticity butt spare 221 is automatic to be released, the contact is to the butt state of group battery, make the location of group battery, spacing and dismouting more simple and convenient, the installation is the same, after group battery is connected with the casing connecting portion, with lower casing 2 and last casing 3 again, upward casing 3 extrudees elasticity butt spare 221, elasticity butt spare 221 outwards expands the butt group battery, accomplish the spacing of group battery in the horizontal direction.

The elastic contact element 221 is an elliptic spring piece, two ends of the spring piece are fixed at the bottom of the hollow groove 222, a part of the spring piece extends out of the skylight 223, a part of the spring piece is exposed out of two sides of the middle partition 220 through the side window 224, and when the upper shell 3 is used for pressing down the part of the spring piece extending out of the skylight 223, the part of the spring piece exposed out of two sides of the middle partition 220 is outwards unfolded. The elastic abutment 221 is an elliptical spring plate, which can provide proper buffering and elasticity, so that the battery pack is protected from movement and vibration, and meanwhile, the stability and safety of the battery pack are maintained. In addition, the spring piece can extend out and expose through different windows, so that the spring piece can be abutted and connected with a plurality of parts, and the versatility and the adaptability of the spring piece are improved.

The spring piece is a copper plate or a spring steel plate or a rubber plate. The spring piece of different materials is selected to meet the elasticity and durability of different demands, the copper plate and the spring steel plate have better elasticity and durability, and the rubber plate has better buffering effect.

The lower side plate surface of the upper shell 3 is provided with a backing plate group 310; the pad group 310 includes a middle pad 311 and a side pad 312; the middle pad 311 is abutted against the top surface of the middle spacer 220, and the side pad 312 is abutted against the battery module. The method can provide a buffer effect for the shell of the battery pack of the new energy automobile, so that the battery pack can move safely and reliably in the shell, and meanwhile, the anti-seismic performance of the battery pack on equipment is improved. The middle pad 311 is abutted with the top surface of the middle baffle 220, so that the stability of the shell can be further enhanced; the side pad 312 is used for abutting against the battery pack, and can play a role in isolation and buffering, so that the upper shell 3 is prevented from being in direct contact with the battery pack, and direct abrasion between the upper shell and the battery pack is reduced, namely friction and collision inside the battery pack are reduced.

The lower side plate surface of the upper shell 3 is provided with an inward-sinking groove 320 which is concave towards the inner direction of the upper shell 3, and the inward-sinking groove 320 corresponds to and is matched with the top surface of the middle partition 220; the middle pad 311 is fixed on the bottom of the invagination groove 320. The recess 320 of the upper case 3 is designed to fit and fix the middle pad 311 on the middle spacer 220, and also to position and limit the upper portion of the middle spacer 220, so that the whole battery pack and the internal structure of the case are more stable and safe.

The middle partition 220 is detachably connected with the lower case 2, so that the middle partition 220 can be conveniently installed and replaced. The inside wall of lower casing 2 is to the protruding part of casing 2 inner chamber downwards, is provided with vertical draw-in groove on this protruding part, and this vertical draw-in groove is for casing connecting portion, this vertical draw-in groove is used for with the vertical card strip adaptation that sets up on the battery module lateral part. The middle partition 220 is provided with through holes, which play a role in heat dissipation and ventilation of the battery packs at two sides. The elastic abutting piece 221 is any one of a spring piece, a conical spring, a rubber pad or a sponge pad distributed on two side plate surfaces of the middle partition plate 220.

Example 2

As shown in fig. 1 to 6, a protective cover for a battery module of a new energy automobile, wherein the protective cover 1 is used for being sleeved on a battery side wall, a module plug-in 110 which can be extended and contracted towards the side is arranged on the protective cover 1, and a slot 120 matched with the module plug-in 110 is arranged on the other side of the protective cover 1; the module insert 110 is arranged in the protective sleeve 1 when retracted, a window 130 is arranged on the top surface of the protective sleeve 1, and a protruding part 111 exposed out of the window 130 or arranged in the window 130 is arranged on the module insert 110 and used for driving the module insert 110 to stretch out and draw back on the protective sleeve 1 when the protruding part 111 is shifted to move in the window 130.

The protecting sleeve for the battery module of the new energy automobile is used as a sleeve of a module to protect single batteries, and is used as a connector of a single module, and module units which are sequentially arranged are mutually connected into a whole row of battery packs through the module plug-in units 110 on the protecting sleeve 1.

The protective sleeve 1 can be further optimized on the basis of the embodiment, and is of a quadrangular cylindrical structure with upper and lower openings; the module insert 110 is arranged in one side wall of the protective sleeve 1; the module insert 110 is a board. This structure can make the installation and maintenance more convenient, makes lag 1 can carry out the alignment and arrange. Meanwhile, the module insert 110 is built in one side wall of the protection sleeve 1, so that the module units which are sequentially arranged can be connected with each other to form a whole row of battery packs, thereby being quickly installed and fixed. In addition, the module plug-in 110 is a board body, so that the module units can be more firmly connected, and the installation is simpler and more convenient.

Further optimization can be performed on the basis of the embodiment, and two sides of the protruding part 111 extend to form a limiting part 112; in the opposite direction of the protrusion 111, the limiting portion 112 is disposed between the protrusion 111 and the inner wall of the window 130, so that when the limiting portion 112 abuts against the inner wall of the window 130, a gap is maintained between the protrusion 111 and the inner wall of the window 130. In order to make the protruding portion 111 be moved, the limiting portion 112 can limit the movement range of the protruding portion 111, so as to prevent the protruding portion 111 from moving excessively inward or outward, and meanwhile, a gap is kept between the protruding portion 111 and the inner wall of the window 130, so that the protruding portion 111 can be moved more smoothly, and normal operation of the device is ensured.

Specifically, the protective cover 1 has a box-shaped structure with an open top and made of any one of polystyrene, polypropylene and polycarbonate. This structure can make installation and maintenance more convenient because when the battery needs to be overhauled, if when the inner cover plate is not arranged above the protective cover 1, only the upper shell 3 needs to be opened, and then the single battery taking-out operation can be conveniently carried out. Meanwhile, the material can provide enough protection against the influence of external environment on the module.

Example 3

As shown in fig. 1 to 9, in the above-described embodiment 1, a side hole is provided in a lower portion of the above-described protector 1, which communicates the inside and outside of the protector 1 in a lateral direction; the side hole is connected with a cam member 150 through a spring hinge, and the spring hinge is positioned above the cam member 150; in a spring hinge relaxed state, one end of the cam member 150 is exposed out of the outer wall of the protection sleeve 1, and the other end of the cam member 150 is accommodated in the lower part of the protection sleeve 1; in the contracted state of the spring hinge, one end of the cam member 150 is received in the outer wall of the protection sleeve 1, and the other end of the cam member 150 extends into the inner cavity of the protection sleeve 1.

Through adopting this cam spare 150, like this when adjacent lag 1 paste tightly, touch the part of cam spare 150 outside lag 1, extrude cam spare 150 to lag 1 inner chamber swing, the concave part formation bottom border butt on cam spare 150 and the battery, accomplish the locking to the battery in vertical direction, also can be with the recess 410 adaptation in the battery of this application below, accomplish the spacing to the battery in vertical direction.

Further, on the basis of the present embodiment, the outer wall portion of the side hole located at the upper side of one end of the inner cavity of the protecting sleeve 1 forms a downward extending slope 140; the slope 140 is used to limit the rotation angle of the cam member 150 toward the inner cavity of the protection sleeve 1 to an acute angle. Thus, when a part of the cam member 150 is inserted into the battery recess 410 described below, the battery is prevented from moving in the vertical direction, so that the battery is secured in the protection sleeve 1.

Example 4

Referring to fig. 10 and 11, a new energy automobile battery protection device includes the protection sleeve for a new energy automobile battery module according to the above embodiment 1 and its modification; the battery protection device for the new energy automobile further comprises a lower shell 2, wherein a shell connecting part matched with the unit sleeve connecting part on the protective sleeve 1 is arranged on the inner side wall of the lower shell 2. Above-mentioned new energy automobile battery protector goes up casing 3, goes up casing 3 downside border and is connected with lower casing 2 upside border, and this upper casing 3 downside face and lag 1 top butt.

Through adopting this new energy automobile battery protector, when assembling battery module, need not to adopt the mode of bolt fastening one by one and fix the module unit on lower casing, only need with the module unit to the back through the butt joint of module plug-in components, can initially accomplish the module unit of lining fixed on lower casing upper horizontal direction, later cover casing 3, accomplish the installation of whole battery, it is swift, convenient.

Through adopting this new energy automobile battery protector, when assembling the battery module, need not to adopt the mode of bolt fastening with the module unit on casing 2 down one by one, only need with the module unit butt joint through module plug-in components 110 afterwards, can initially accomplish the fixing of module unit on the horizontal direction on casing 2 down, afterwards cover casing 3, accomplish the installation of whole battery, swiftly, conveniently, when dismantling, open casing 3, only need stir above-mentioned bulge 111 and can take out corresponding module unit, simultaneously if only need take out the battery cell, can upwards lift up the module unit and rebound to the spring hinge relaxation state (when this lag 1 is located this list module unit intermediate position) promptly after the part that the cam member 150 was replied to the inner chamber of lag 1 is accomodate into lag 1 inner wall, afterwards, can return down the lag 1 of module unit can, when installing the battery cell, same will lag 1 (if this lag 1 is located this lag 1 and wait for when this lag unit intermediate position) and the spring hinge is in the lag 150 is automatic to be inserted in this lag 1 again, this lag 1 is locked in this lag unit.

Specifically, the inner side wall of the lower housing 2 protrudes to the inner cavity of the lower housing 2, and a vertical clamping groove 210 is provided on the protruding portion, and the vertical clamping groove 210 is the housing connecting portion; the side portion of the protecting jacket 1 is provided with a vertical clamping bar 160, the vertical clamping bar 160 is adapted to the clamping groove 210, and the vertical clamping bar 160 is the unit jacket connecting portion.

This construction can make installation and maintenance more convenient. During installation, the vertical clamping strips 160 of the protective sleeve 1 are only required to be aligned with the vertical clamping grooves 210 of the lower shell 2 to be inserted, so that quick positioning and horizontal of a single module unit in the vertical direction can be completed.

The clamping grooves 210 are arranged on the inner side wall of the lower housing 2 along the length direction of the lower housing 2. The clamping grooves 210 can be arranged at the positions, close to two ends, of the lower shell 2, and can also be arranged on the whole inner side wall, the clamping grooves 210 can be used as connectors for fixing the module units, and gaps or gaps are reserved between the lower shell 2 and the module units through the parts extending downwards to the inner sides of the lower shell 2, so that contact surfaces between the side walls of the lower shell 2 and the module units are reduced, and meanwhile heat dissipation and ventilation are guaranteed.

Example 5

With reference to fig. 1 and fig. 2, the present embodiment further provides a new energy automobile battery, including a single battery housing 4, wherein a lower portion of the single battery housing 4 is a base, a groove 410 is provided on a side edge of the base, and the groove 410 is adapted to the cam member 150 in the protective cover for a new energy automobile battery module of the first aspect; the upper part of the battery is provided with a convex edge which extends outwards and is used for being abutted with the inner wall of the protective sleeve 1. By adopting the recess 410 of the new energy automobile battery to cooperate with the cam member 150, the battery can be more firmly stabilized. In order to facilitate the taking out of the single battery, two horizontal parallel through grooves can be formed in the top surface of the single-battery single-use shell 4, the single-battery single-use shell is hung out by using a hook or a lead wire penetrating through the through grooves, and objects such as a handle can be arranged on the top surface, so long as the taking out of the single battery can be assisted.

The foregoing detailed description of the utility model has been presented for purposes of illustration and description, and it should be understood that the foregoing is by way of illustration and example only, and is not intended to limit the scope of the utility model.

Claims (10)

1. A casing for new energy automobile group battery, its characterized in that includes:

a lower case having an inner cavity for receiving the battery module;

the upper shell is arranged on the upper side of the lower shell and is used for closing the inner cavity after being in butt joint with the lower shell;

wherein, the side wall of the inner cavity of the lower shell is provided with a shell connecting part for connecting with a battery module;

the middle part of lower casing is provided with the middle septum that extends along lower casing length direction, and this middle septum is provided with elasticity butt spare, and this elasticity butt spare is used for with arrange in the battery module butt of this middle septum both sides side.

2. The housing for a battery pack of a new energy automobile according to claim 1, wherein,

hollow grooves are arranged on the middle partition plate and are arranged along the length direction of the middle partition plate;

and one part of the elastic abutting piece is fixed in the hollow groove, and one part of the elastic abutting piece is exposed out of the hollow groove.

3. The housing for a battery pack of a new energy automobile according to claim 2, wherein,

the top surface of the middle partition plate is provided with a skylight, and a part of the elastic abutting piece is exposed out of the top surface of the middle partition plate through the skylight and is used for abutting against the upper shell;

the side panel of middle baffle sets up the side window, a portion of elasticity butt spare exposes in the middle baffle side through this side window for with battery module butt.

4. The housing for a battery pack of a new energy automobile according to claim 3, wherein,

the elastic abutting piece is an elliptic spring piece, two ends of the spring piece are fixed at the bottom of the hollow groove, one part of the spring piece extends out of the skylight, and the other part of the spring piece is exposed out of two sides of the middle partition plate through the side window and is used for pressing down the part of the spring piece extending out of the skylight by the upper shell, and the part of the spring piece exposed out of two sides of the middle partition plate is outwards unfolded.

5. The housing for a battery pack of a new energy automobile according to claim 4, wherein,

the spring piece is a copper plate or a spring steel plate or a rubber plate.

6. The housing for a battery pack of a new energy automobile according to any one of claims 1 to 5, wherein,

a base plate group is arranged on the lower side plate surface of the upper shell;

the pad group comprises a middle pad and a side pad;

the middle backing plate is abutted with the top surface of the middle partition plate, and the side backing plate is used for being abutted with the battery module.

7. The housing for a battery pack of a new energy automobile according to claim 6, wherein,

the lower side plate surface of the upper shell is provided with an inward sinking groove which is concave towards the inner direction of the upper shell, and the inward sinking groove corresponds to and is matched with the top surface of the middle partition plate;

the middle backing plate is fixed on the bottom of the invagination groove.

8. The housing for a battery pack of a new energy automobile according to any one of claims 1 to 5, wherein,

the middle partition board is detachably connected with the lower shell.

9. The housing for a battery pack of a new energy automobile according to any one of claims 1 to 5, wherein,

the inner side wall of the lower shell protrudes to the inner cavity of the lower shell to form a part, a vertical clamping groove is formed in the part of the protruding part, the vertical clamping groove is formed in the connecting part of the shell, and the vertical clamping groove is used for being matched with a vertical clamping strip arranged on the side part of the battery module.

10. The housing for a battery pack of a new energy automobile according to claim 1, wherein,

through holes are distributed on the middle partition plate.