CN208655716U - A kind of battery case and a kind of lithium battery - Google Patents

Abstract

The utility model discloses a kind of battery case and a kind of lithium batteries, the battery case includes first shell, insulator and second shell, second shell is connected by insulator and first shell insulation, and form the accommodating cavity for being used for set battery core, wherein, the opposite end of battery is abutted with first shell and second shell respectively.The opposite end of the battery of the utility model is abutted with first shell and second shell respectively, without additional fixed structure to fix battery, to save space shared by fixed structure, the volume of battery can be increased relatively, and then improve lithium battery storage electricity.

Description

A kind of battery case and a kind of lithium battery

Technical field

The utility model relates to technical field of lithium batteries, more particularly to a kind of battery case and a kind of lithium battery.

Background technique

Since 1991, since lithium battery is successfully developed and is commercialized, lithium battery is quickly grown, and application range increasingly expands Greatly, occupation rate of market increasingly improves, and the arrival and environmental pressure in particular with energy crisis are growing, lithium battery conduct Power source is applied on electric car, so that demand further expansion of the market to lithium battery.Lithium battery is on electric car Be different from consumption market battery using the requirement to battery performance, should high-energy density, high power density again, while right Security performance requires also very high.

Lithium battery includes battery case and the battery that is arranged in inside battery case, under the premise of battery density is certain, The volume of battery is bigger, and the electricity stored by lithium battery is more, but because the design of current battery shell needs additional screw Or the fixing pieces such as buckle, to fix battery, additional fixing piece occupies the installation space of battery, thereby reduces lithium electricity The reserve of electricity in pond

Utility model content

The utility model provides a kind of battery case and a kind of lithium battery against the above technical problems, to solve in the prior art Battery needs the fixing pieces such as additional screw or buckle to occupy the storage that battery installation space thereby reduces lithium battery The technical issues of amount.

The utility model use a technical solution be: a kind of battery case is provided, the battery case include first shell, absolutely Edge body and second shell, second shell is by insulator and first shell insulation connection to form the appearance for set battery core Set chamber, wherein the opposite end of battery is abutted with first shell and second shell respectively.

Another technical solution that the utility model uses is: providing a kind of lithium battery, which includes above-mentioned battery Shell.

The beneficial effects of the utility model are: the opposite end of the battery of the utility model respectively with first shell and Two shells abut, without additional fixed structure to fix battery, so that space shared by fixed structure is saved, it can be opposite Increase the volume of battery, and then improves lithium battery storage electricity.

Detailed description of the invention

In order to more clearly explain the technical solutions in the embodiments of the present application, make required in being described below to embodiment Attached drawing is briefly described, it should be apparent that, the drawings in the following description are only some examples of the present application, for For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other Attached drawing, in which:

Fig. 1 is the cross section structure schematic diagram of lithium battery in the utility model first embodiment；

Fig. 2 is the cross section structure schematic diagram of lithium battery in the utility model second embodiment；

Fig. 3 is the cross section structure schematic diagram of lithium battery in the utility model 3rd embodiment；

Fig. 4 is the cross section structure schematic diagram of lithium battery in the utility model fourth embodiment；

Fig. 5 is the partial enlarged view of a-quadrant in Fig. 4.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe.It is understood that specific embodiment described herein is only used for explaining the utility model, rather than Restriction to the utility model.It also should be noted that illustrating only for ease of description, in attached drawing and the utility model Relevant part rather than entire infrastructure.Based on the embodiments of the present invention, those of ordinary skill in the art are not making All other embodiment obtained, fall within the protection scope of the utility model under the premise of creative work.

Term " first ", " second " in the utility model are used for description purposes only, and are not understood to indicate or imply Relative importance or the quantity for implicitly indicating indicated technical characteristic.Define " first " as a result, the feature of " second " can To explicitly or implicitly include at least one this feature.In the description of the utility model, the meaning of " plurality " is at least two, Such as two, three etc., unless otherwise specifically defined.Institute is directional in the utility model embodiment indicates (such as Up, down, left, right, before and after ...) it is only used for explaining opposite between each component under a certain particular pose (as shown in the picture) Positional relationship, motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly. In addition, term " includes " and " having " and their any deformations, it is intended that cover and non-exclusive include.Such as contain one The process, method, system, product or equipment of series of steps or component are not limited to listed step or component, but can Selection of land further includes the steps that not listing or component, or optionally further comprising intrinsic for these process, methods, product or equipment Other steps or component.

Referenced herein " embodiment " is it is meant that a particular feature, structure, or characteristic described can wrap in conjunction with the embodiments It is contained at least one embodiment of the utility model., which there is the phrase, in each position in the description to be each meant Identical embodiment, nor the independent or alternative embodiment with other embodiments mutual exclusion.Those skilled in the art are explicit Ground and implicitly understand, embodiment described herein can be combined with other embodiments.

Referring to Fig. 1, Fig. 1 is the cross section structure schematic diagram of lithium battery in the utility model first embodiment.

In the first embodiment, lithium battery includes battery case 100 and battery 200, and battery 200 is accommodated in battery case In 100.100 one side of battery case can protect battery 200 from external impact, on the other hand can also be by battery 200 Electricity export, for energy consumption equipment use.

Wherein, battery case 100 includes first shell 110, second shell 120 and insulator 130, and second shell 120 passes through Insulator 130 and the insulation of first shell 110 connect, and form the accommodating cavity 116 for being used for set battery core 200, battery 200 Opposite end is abutted with first shell 110 and second shell 120 respectively, to fix battery core 200.

The opposite end of the battery of the utility model is abutted with first shell and second shell respectively, is consolidated without additional Structure is determined to fix battery, to save space shared by fixed structure, can increase the volume of battery, Jin Erti relatively High lithium battery stores electricity.

Wherein, the material of first shell 110 and second shell 120 can be in stainless steel, aluminium alloy or magnesium alloy It anticipates one kind.

Optionally, insulator 130 is transparent insulation material.Specifically, insulator 130 be glass, second shell 120 and absolutely Edge body 130 is connected using sintering processing, and insulator 130 is fixedly connected with first shell 110 by insulating cement, thus by first shell Body 110, second shell 120 and insulator 130 connect into a complete entirety.

It is clearly observed the inside concrete condition of battery 200, by transparent insulator 130 to exclude battery in time 200 failure of core provides possibility.Insulator 130 can also be made of nontransparent isolation materials such as ceramics, nontransparent plastic cement.

Further, first shell 110 can also include bottom plate 112 and coaming plate 114, and coaming plate 114 is set around bottom plate 112 Set, second shell 120 is connect by insulator 130 with coaming plate 114, wherein the opposite end of battery 200 respectively with bottom plate 112 and 120 close-fitting of second shell abut, to fix battery 200, while by battery 200 and first shell 110 and second shell Body 120 is electrically connected.

Specifically, insulator 130 is annular in shape, and the ring-type of insulator 130 can be circular ring shape, the ring-type of insulator 130 It can be rectangular.Insulator 130 includes upper and lower two end faces (131 and 133), outer peripheral surface 132 and inner peripheral surface 134, outer peripheral surface 132 It is connect respectively with upper and lower two end faces (131 and 133) with inner peripheral surface 134.

In the first embodiment, 130 gland of insulator is on coaming plate 114, the inner circumferential of second shell 120 and insulator 130 Face 134 connects, i.e., insulator 130 a end face 131 is connect with coaming plate 114, the inner peripheral surface 134 and second shell of insulator 130 Body 120 connects.

Further, the distance between the inner peripheral surface 134 of insulator 130 and outer peripheral surface 132 are greater than the thickness of coaming plate 114, To avoid second shell 120 and 110 contact short circuit of first shell.

Referring to Fig. 2, Fig. 2 is the cross section structure schematic diagram of lithium battery in the utility model second embodiment.

The difference of second embodiment and first embodiment is that 130 gland of insulator is on coaming plate 114, second shell 120 Gland is connected on insulator 130, i.e., the two of insulator 130 end face (131 and 133) respectively with coaming plate 114 and second shell 120 connections.

Referring to Fig. 3, Fig. 3 is the cross section structure schematic diagram of lithium battery in the utility model 3rd embodiment.

The difference of 3rd embodiment and first embodiment is that the outer peripheral surface 132 of insulator 130 is connect with coaming plate 114, absolutely The inner peripheral surface 134 of edge body 130 is connect with second shell 120.

Fig. 4 and Fig. 5 are please referred to, Fig. 4 is the cross section structure schematic diagram of lithium battery in the utility model fourth embodiment, Fig. 5 It is the partial enlarged view of a-quadrant in Fig. 4.

The difference of fourth embodiment and first embodiment is that coaming plate 114 is provided in the contact position with second shell 120 Assembly bench 118, assembly bench 118 is for receiving the nested setting of insulator 130.It is empty that assembly bench 118 and coaming plate 114 collectively constitute accommodating Between, insulator 130 is accommodated in accommodating space, and the outer peripheral surface 132 of insulator 130 abuts respectively with one end 131 or 133 Assembly bench 118 and coaming plate 114, to limit the movement of insulator 130.

Preferably, in above-mentioned first embodiment into fourth embodiment, battery case 100 further comprises buffer body 300, is delayed It rushes body 300 to be arranged between coaming plate 114 and battery 200, buffer body 300 can be silica gel, and buffer body 300 is also possible to steep Cotton.When first shell 110 is deformed by external impacts, buffer body 300 can effectively alleviate first shell 110 because of deformation And the pressure to battery 200 generated, to avoid battery 200 because being exploded by external force.

The beneficial effect of the various embodiments described above is: the opposite end of battery is supported with first shell and second shell respectively It connects, without additional fixed structure to fix battery, to save space shared by fixed structure, opposite can increase battery The volume of core, and then improve lithium battery storage electricity.

The utility model also provides a kind of lithium battery, including battery core and accommodates the battery case of the battery core, which is upper Battery case described in any embodiment is stated, details are not described herein.

The foregoing is merely presently filed embodiments, are not intended to limit the scope of the patents of the application, all to utilize this Equivalent structure or equivalent flow shift made by application specification and accompanying drawing content is applied directly or indirectly in other relevant Technical field similarly includes in the scope of patent protection of the application.

Claims (10)

1. a kind of battery case characterized by comprising

First shell, insulator and second shell, the second shell are insulated by the insulator and the first shell Connection, and form the accommodating cavity for being used for set battery core；

Wherein, the opposite end of the battery is abutted with the first shell and the second shell respectively.

2. battery case according to claim 1, which is characterized in that the first shell includes bottom plate and coaming plate, described to enclose Plate is arranged around the bottom plate, and the second shell is connected by the insulator and coaming plate insulation.

3. battery case according to claim 2, which is characterized in that

The insulator gland is connected on the coaming plate, and the second shell is connect with the inner peripheral surface of the insulator.

4. battery case according to claim 2, which is characterized in that

The insulator gland is connected on the coaming plate, and the second shell gland is connected on the insulator.

5. battery case according to claim 2, which is characterized in that

The outer peripheral surface of the insulator is connect with the coaming plate, and the inner peripheral surface of the insulator is connect with the second shell.

6. battery case according to claim 3, which is characterized in that

Assembly bench is convexly equipped with above the coaming plate, the assembly bench and the coaming plate collectively constitute accommodating space, the insulator It is accommodated in the accommodating space, the outer peripheral surface of the insulator abuts the assembly bench respectively with one end and described encloses Plate.

7. battery case according to claim 2, which is characterized in that

The battery case further comprises buffer body, and the buffer body is arranged between the coaming plate and the battery.

8. battery case according to claim 1, which is characterized in that

The material of the battery case is any one in stainless steel, aluminium alloy or magnesium alloy；

The insulator is transparent insulation material.

9. battery case according to claim 8, which is characterized in that

The insulator is glass, and the second shell is connect with the insulator using sintering processing；

The insulator and the first shell pass through insulation glue connection.

10. a kind of lithium battery characterized by comprising the described in any item battery cases of claim 1 to 9.