CN212625881U - Automobile battery pack - Google Patents

Abstract

The application discloses car battery package, car battery package includes lid, a plurality of electric core pile body, framework and bottom plate, and is wherein a plurality of the electric core pile body is arranged in the framework, go up the lid fit the framework top and go up the lid with be equipped with first sealing washer between the framework top, the bottom plate install in the framework bottom, its characterized in that, first sealing washer is formed by the concatenation of the solitary sealing strip of multistage, the sealing strip is the vertical bar. The utility model provides a sealing washer structure cost of manufacture of car battery package is low, sealed effectual.

Description

Automobile battery pack

Technical Field

The utility model relates to a new energy automobile, concretely relates to battery package.

Background

An existing vehicle battery pack generally includes an upper cover, a plurality of battery modules, a frame, and a base plate, wherein the plurality of battery modules are accommodated in the frame. The upper cover body is arranged at the top of the frame body, and a sealing ring is arranged between the upper cover body and the frame body. The bottom plate is connected to the bottom of the frame, and a sealing ring is usually arranged between the bottom plate and the bottom of the frame.

With the development of new energy automobiles, people have higher and higher requirements on the endurance mileage of the new energy automobiles, so that the power of the automobile batteries is higher and higher, and the size of the battery pack is larger and larger. Correspondingly, the sealing rings between the upper cover body and the frame body and between the bottom plate and the frame body are made larger and even are as long as several meters. This results in high manufacturing costs and difficulty in installation.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a low in manufacturing cost, sealed effectual car battery package.

In order to achieve the above object, the utility model provides an automobile battery package, automobile battery package includes lid, a plurality of electric core pile stack, framework and bottom plate, and is wherein a plurality of the electric core pile stack is arranged in the framework, go up the lid and fit the framework top and go up the lid with be equipped with first sealing washer between the framework top, the bottom plate install in the framework bottom, wherein, first sealing washer is formed by the concatenation of multistage sealing strip, the sealing strip is the straight bar.

In one embodiment, in two adjacent sealing strips, a male connecting structure is arranged at one end of one sealing strip connected with the other sealing strip, and a female connecting structure is arranged at the corresponding end of the other sealing strip, wherein the male connecting structure is matched with the female connecting structure, so that the two adjacent sealing strips are connected with each other.

In one embodiment, the male connecting structure is a protrusion extending from one end of the sealing strip along the length direction of the sealing strip, and the female connecting structure is a notch recessed from the long side of the sealing strip.

In one embodiment, the protrusions are dovetail protrusions and the indentations are dovetail slots.

In one embodiment, the joint of two adjacent sealing strips is coated with glue.

In one embodiment, an angle formed between two adjacent sections of sealing strips is 90 degrees, and the length of the first sealing ring is greater than 3 meters.

In one embodiment, the whole first sealing ring is provided with positioning holes which are spaced apart from each other, the upper surface of the whole periphery of the frame body is provided with positioning protrusions which are spaced apart from each other, and the positioning holes correspond to the positioning protrusions one to one.

In an embodiment, the positioning protrusion is provided with a threaded hole, and the first sealing ring is fixedly connected to the top of the frame body through a screw passing through the upper cover body, the positioning hole and the threaded hole in sequence.

In one embodiment, a second sealing ring is arranged between the bottom plate and the bottom of the frame body.

In one embodiment, the first seal ring and the second seal ring have the same structure.

The sealing ring of the automobile battery pack is low in manufacturing cost, convenient to install and good in sealing effect.

Drawings

Fig. 1 is a schematic exploded view of a structure of an automotive battery pack according to a first embodiment of the present invention.

Fig. 2 is a schematic structural view of a first sealing ring of the automotive battery pack of fig. 1.

Fig. 3 is a schematic exploded view of a vehicle battery pack according to a second embodiment of the present invention, with the battery module removed for clarity.

Fig. 4 is a schematic exploded view of a third embodiment of an automotive battery pack according to the present invention, with parts removed for clarity.

Fig. 5 is a schematic structural view of a first sealing ring of the automotive battery pack of fig. 4.

Fig. 6 is a schematic exploded view of a vehicle battery pack according to a fourth embodiment of the present invention, with parts removed for clarity.

Fig. 7 is a schematic structural view of a first sealing ring of the automotive battery pack of fig. 6.

Fig. 8 is an enlarged view of a portion a of fig. 7.

Detailed Description

Various embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the objects, features and advantages of the invention can be more clearly understood. It should be understood that the embodiments shown in the drawings are not intended as limitations on the scope of the invention, but are merely illustrative of the true spirit of the technical solution of the invention.

In the following description, for the purposes of illustrating various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. One skilled in the relevant art will recognize, however, that the embodiments may be practiced without one or more of the specific details. In other instances, well-known devices, structures and techniques associated with this application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

Throughout the specification and claims, the word "comprise" and variations thereof, such as "comprises" and "comprising," are to be understood as an open, inclusive meaning, i.e., as being interpreted to mean "including, but not limited to," unless the context requires otherwise.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

As used in this specification and the appended claims, the singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "and/or" unless the context clearly dictates otherwise.

In the following description, for the sake of clarity, the structure and operation of the present invention will be described with the aid of directional terms, but the terms "front", "rear", "left", "right", "outer", "inner", "outer", "inward", "upper", "lower", etc. should be understood as words of convenience and not as words of limitation.

The automobile battery pack is used for a new energy automobile and is generally assembled on a chassis of the automobile. The automotive battery pack 100 generally includes an upper cover 1, a plurality of cell stacks 2, a frame 3, and a bottom plate 4. The upper cover body covers the top of the frame body. The bottom plate is arranged at the bottom of the frame body. A plurality of cell stacks 1 are placed in the frame 3. The cell stack, which is also commonly referred to as a battery module, generally includes a plurality of cells connected in series and parallel, a cover plate, an end plate, and the like. Each of the cell stack bodies 2 has one positive electrode and one negative electrode for electrical connection with the other cell stack bodies. The bottom plate typically includes water-cooled panels and a shield. The guard plate is positioned below the water cooling plate. A first sealing ring is usually arranged between the upper cover body and the frame body, and a second sealing ring is arranged between the frame body and the bottom plate. In the present application, the first seal ring and the second seal ring may be the same or different.

In the present application, the frame 3 of the automobile battery pack is divided into a first region 301 and a second region 302. The first region and the second region are both rectangular. The side of the second region 302 facing away from the first region 301 is provided with two electrical component mounting areas 303 spaced apart from each other and from the accommodation. The first region 301 accommodates only one cell stack 2, and the second region accommodates cell stacks in a symmetrical arrangement with a number of less than or equal to 4, preferably 2 arranged side by side, or 2 rows and 2 columns. And adhesive glue is arranged between the battery cell stacked body 2 and the bottom plate. Specifically, adhesive glue is arranged between the cell stack body 2 and the water cooling plate. Each cell stack 2 is fixedly mounted to the base plate mainly by means of adhesive glue and with the aid of a small number of bolts.

As shown in fig. 1, the first area 301 and the second area 302 of the frame body 3 are spaced apart by a spacer beam 304. The first region 301 is formed with a receiving portion 305. The accommodating portion 305 accommodates one cell stack 2. The second region 302 has four accommodation portions 306 arranged two by two symmetrically, and respectively accommodate 4 cell stacks 2. The second region holds 4 electric core pile body 2, wherein positive pole and the negative pole of every electric core pile body all are located the middle part of framework and with the positive pole and the negative pole relative arrangement of the electric core pile body that corresponds.

And adhesive glue is arranged between each battery cell stacking body 2 and the corresponding bottom plate and used for bonding the corresponding battery cell stacking body to the bottom plate. There may be a piece of adhesive in each of the first and second regions. Or, also can set up polylith adhesive cement in the second region, every adhesive cement corresponds a battery core stack body. Preferably, the adhesive is a heat-conducting structural adhesive. In this application, electric core stack body 2 mainly fixes in the bottom plate through the adhesive, and the bolt plays supplementary fixed action. Thereby, the number of bolts may be small, the bolted connection may be arranged only at one side of the cell stack, and only two bolts may be employed per cell stack. Thereby, the installation time of the cell stack body is greatly reduced.

Further, a spacer beam 307 is provided between two adjacent receiving portions 306. The spacer beam 307 is fixed with a post with a threaded hole. Bolts can pass through the threaded holes of the upper cover body and the upright posts in sequence to fixedly connect the upper cover body to the frame body 3. In the embodiment shown in fig. 1, the frame body 3 is symmetrical forward and backward as a whole along its central axis, thereby having better dynamic characteristics. Further, the number of cell stacks is thereby small and arranged symmetrically, which further optimizes the dynamics of the automotive battery pack.

Referring to fig. 1 and 2, a first seal ring 5 is provided between the upper cover and the frame 3. The first seal ring 5 is symmetrical about its central axis a. The first seal ring 5 is formed of a plurality of seal strips 501 integrally formed and connected to each other in sequence. The angle formed between two adjacent sealing strips is 90 degrees. It should be understood that the angle formed between two adjacent sealing strips can be other angles according to the shape of the frame body 3. The entire first seal ring 5 is distributed with positioning holes 501 spaced apart from each other. The diameter of the positioning hole 501 may be set slightly smaller than the outer diameter of the positioning projection on the frame body. Preferably, the positioning hole 501 is disposed at a position other than the position where two adjacent sealing strips meet. The first sealing ring 5 is flat and preferably made of rubber material. Preferably, the thickness of the first sealing ring 5 is 3 mm-10 mm. The length of the first sealing ring can be more than 3 meters.

With continued reference to fig. 1, the upper surface of the entire outer periphery of the frame body 3 is distributed with positioning projections 308 spaced apart from each other. The positioning protrusions 308 correspond to the positioning holes 501 one to one. The positioning protrusion 308 is provided with a threaded hole, and the first sealing ring 5 is fixedly connected to the top of the frame 3 through a screw passing through the upper cover 1, the positioning hole 501 and the threaded hole in sequence. Preferably, the distance between two adjacent positioning protrusions ranges from 80mm to 120 mm. Within this range, the sealing effect can be ensured, and the manufacturing and processing time and the installation time can be reduced.

A second sealing ring 6 is arranged between the bottom plate 4 and the bottom of the frame body 3. The overall shape of the second seal ring 6 is substantially the same as that of the first seal ring 5, and the difference is mainly that the second seal ring 6 is not provided with a positioning hole, and correspondingly, the bottom of the frame body 3 is not provided with a positioning bulge. Alternatively, the bottom plate 4 is provided with a seal ring groove 401, and the second seal ring 6 is located in the seal ring groove 401. Further, the second gasket 6 is located inside the connection position between the bottom plate 4 and the frame 3.

Fig. 3 is a schematic exploded view of an automotive battery pack 200 according to a second embodiment of the present invention. The present embodiment is different from the embodiment shown in fig. 1 and 2 in that the first sealing ring and the second sealing ring have the same structure, and the rest is basically the same, and will not be described in detail here.

Fig. 4 shows a schematic structural diagram of an automotive battery pack 300 according to a third embodiment of the present invention, with parts of the structure removed for clarity. The embodiment is different from the embodiment shown in fig. 1 and 2 mainly in the shape of the first seal ring, and the rest is basically the same, and the description of the same parts is not repeated here. As shown in fig. 5, the first sealing ring 7 of the present embodiment is formed by splicing multiple sections of individual sealing strips, and the sealing strips are all straight strips. The angle formed between two adjacent sealing strips is 90 degrees. The hair end of each seal is beveled 502. When the sealing ring is assembled, the inclined planes of the corresponding end parts of the two adjacent sections of sealing strips are mutually abutted and are sequentially connected to form a closed sealing ring. The joint of two adjacent sealing strips can be coated with glue, so that the joint strength between the two adjacent sealing strips can be improved, and the sealing effect of the whole sealing ring can be provided. Because the sealing washer is great, usually the length is several meters, consequently through setting up the sealing washer into the multistage, can greatly reduced manufacturing cost. Similarly, the entire first seal ring 7 of the present application is distributed with positioning holes 701 spaced apart from each other, and the entire upper surface of the outer periphery of the frame body 3 is distributed with positioning protrusions 308 spaced apart from each other, and the positioning holes and the positioning protrusions correspond one to one. The positioning bulge is provided with a threaded hole. During assembly, the first sealing ring is fixedly connected to the top of the frame body through screws sequentially penetrating through the upper cover body, the positioning hole and the threaded hole. The structure of the second sealing ring between the bottom of the frame body and the bottom plate in this embodiment may be the same as the first sealing ring 7, or the sealing ring structure shown in fig. 1 to 3 may be adopted, which is not described in detail.

Fig. 6 and 7 respectively show a schematic structural diagram of an automotive battery pack 400 and a first sealing ring 8 thereof according to a fourth embodiment of the present invention. The present embodiment differs from the embodiment shown in fig. 4 to 5 in the structure of the first seal ring 8, and the rest is the same, and will not be described in detail here. As shown in fig. 7 and 8, the first sealing ring is formed by splicing multiple sections of independent sealing strips, and the sealing strips are all straight strips and are provided with positioning holes 801. The angle formed between two adjacent sealing strips is 90 degrees. In the two adjacent sections of sealing strips, a male connecting structure is arranged at one end of one section of sealing strip connected with the other section of sealing strip, a female connecting structure is arranged at the corresponding end of the other section of sealing strip, and the male connecting structure is matched with the female connecting structure, so that the two adjacent sections of sealing strips are connected with each other. The male connecting structure is a protrusion extending from one end of the sealing strip along the length direction of the sealing strip, and the female connecting structure is a notch recessed from the long side edge of the sealing strip. In this embodiment, the protrusions are dovetail protrusions 802 and the indentations are dovetail grooves 803. It will be appreciated that the projection may be in the form of a semi-cylinder or other suitable shape, and the corresponding indentation may be of a matching shape. During assembly, the male connecting structures of two adjacent sealing strips are inserted into the female connecting structures and are sequentially connected to form a closed sealing ring. The joint of two adjacent sealing strips can be coated with glue, so that the joint strength between the two adjacent sealing strips can be improved, and the sealing effect of the whole sealing ring can be provided.

While the preferred embodiments of the present invention have been described in detail above, it should be understood that aspects of the embodiments can be modified, if necessary, to employ aspects, features and concepts of the various patents, applications and publications to provide yet further embodiments.

These and other changes can be made to the embodiments in light of the above detailed description. In general, in the claims, the terms used should not be construed to be limited to the specific embodiments disclosed in the specification and the claims, but should be construed to include all possible embodiments along with the full scope of equivalents to which such claims are entitled.

Claims (10)

1. The utility model provides an automobile battery package, automobile battery package includes lid, a plurality of electric core pile stack, framework and bottom plate, and is wherein a plurality of the electric core pile stack is arranged in the framework, go up the lid fit the framework top and go up the lid with be equipped with first sealing washer between the framework top, the bottom plate install in the framework bottom, its characterized in that, first sealing washer is formed by the concatenation of the solitary sealing strip of multistage, the sealing strip is the vertical bar.

2. The automobile battery pack according to claim 1, wherein, in two adjacent sealing strips, one end of one sealing strip connected with the other sealing strip is provided with a male connecting structure, and the corresponding end of the other sealing strip is provided with a female connecting structure, wherein the male connecting structure is matched with the female connecting structure, so that the two adjacent sealing strips are connected with each other.

3. The automotive battery pack of claim 2, wherein the male connection structure is a protrusion extending from one end of the sealing strip in a length direction of the sealing strip, and the female connection structure is a notch recessed from a long side of the sealing strip.

4. The automotive battery pack of claim 3, wherein the protrusion is a dovetail-shaped protrusion and the notch is a dovetail-shaped groove.

5. The automotive battery pack of claim 1, wherein the joint between two adjacent lengths of sealing strip is coated with glue.

6. The automobile battery pack of claim 1, wherein an angle formed between two adjacent sealing strips is 90 degrees, and the length of the first sealing ring is greater than 3 meters.

7. The battery pack for the vehicle as claimed in claim 1, wherein the first sealing ring is provided with positioning holes spaced apart from each other, and the frame is provided with positioning protrusions spaced apart from each other on the upper surface of the outer circumference thereof, and the positioning holes are in one-to-one correspondence with the positioning protrusions.

8. The automobile battery pack of claim 7, wherein the positioning protrusion is provided with a threaded hole, and the first sealing ring is fixedly connected to the top of the frame body through a screw passing through the upper cover body, the positioning hole and the threaded hole in sequence.

9. The vehicle battery pack of claim 1, wherein a second seal ring is disposed between the bottom plate and the bottom of the frame.

10. The automotive battery pack of claim 9, wherein the first and second seal rings are identical in structure.

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