CN218300079U

CN218300079U - Lower box and battery package

Info

Publication number: CN218300079U
Application number: CN202222393285.2U
Authority: CN
Inventors: 宋亮亮; 闵忠国; 孙永刚
Original assignee: Neusoft Reach Automotive Technology Shenyang Co Ltd
Current assignee: Neusoft Reach Automotive Technology Shenyang Co Ltd
Priority date: 2022-09-06
Filing date: 2022-09-06
Publication date: 2023-01-13
Anticipated expiration: 2032-09-06

Abstract

The utility model provides a lower box and battery package relates to battery package technical field, the utility model provides a lower box, include: a metal frame and a composite joint; the metal frame is provided with a supporting part, the composite material joint is positioned at the supporting part, and the composite material joint is fixedly bonded with the metal frame. The utility model provides a lower box and battery package, the processing cost is low, does not have the heat altered shape, can not produce the influence of processing stress factor, has realized the combination that metal crate and combined material connect moreover, not only can resist outside mechanical oscillation and strike, can alleviate the weight of box down again.

Description

Lower box and battery package

Technical Field

The utility model belongs to the technical field of the power battery technique and specifically relates to a lower box and battery package are related to.

Background

The lower box body structure is formed by welding aluminum alloy materials, and the structural strength of the welding position is reduced, so that the lower box body is difficult to bear mechanical vibration impact from the outside. If the lower box body is formed by combining the aluminum alloy and the composite material, the metal material and the composite material cannot be thermally connected, so that the processing difficulty of the lower box body is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lower box and battery package to alleviate the technical problem that lower box structure is difficult to resist outside mechanical shock among the prior art.

The first aspect, the utility model provides a lower box, include: a metal frame and a composite joint;

the metal frame is provided with a supporting part, the composite material joint is positioned at the supporting part, and the composite material joint is fixedly bonded with the metal frame.

With reference to the first aspect, the present invention provides a first possible implementation manner of the first aspect, wherein the metal frame includes: the first frame, the second frame, the third frame and the fourth frame;

the first frame, the second frame, the third frame and the fourth frame are sequentially connected end to form a rectangular frame;

a first corner is formed between the first frame and the second frame, a second corner is formed between the second frame and the third frame, a third corner is formed between the third frame and the fourth frame, and a fourth corner is formed between the fourth frame and the first frame;

the support site includes: the first corner, the second corner, the third corner, and the fourth corner.

In combination with the first possible implementation manner of the first aspect, the present invention provides a second possible implementation manner of the first aspect, wherein the composite material joint includes: a first elbow piece, a second elbow piece, a third elbow piece, and a fourth elbow piece;

first elbow piece bond in first frame with between the second frame, second elbow piece bond in the second frame with between the third frame, third elbow piece bond in the third frame with between the fourth frame, fourth elbow piece bond in the fourth frame with between the first frame.

In combination with the second possible implementation manner of the first aspect, the present invention provides a third possible implementation manner of the first aspect, wherein both ends of the first frame are provided with first sockets, both ends of the second frame are provided with second sockets, both ends of the third frame are provided with third sockets, and both ends of the fourth frame are provided with fourth sockets;

the first frame, the second frame, the third frame and the fourth frame are all provided with glue injection holes, and the first jack, the second jack, the third jack and the fourth jack are respectively communicated with the glue injection holes in a fluid mode;

one end of the first elbow piece is inserted into one first inserting opening of the first frame, and the other end of the first elbow piece is inserted into one second inserting opening of the second frame;

one end of the second elbow piece is inserted into the other second inserting hole of the second frame, and the other end of the second elbow piece is inserted into one third inserting hole of the third frame;

one end of the third elbow piece is inserted into the other third insertion opening of the third frame, and the other end of the third elbow piece is inserted into one fourth insertion opening of the fourth frame;

one end of the fourth elbow piece is inserted into the other fourth inserting hole of the fourth frame, and the other end of the fourth elbow piece is inserted into the other first inserting hole of the first frame.

In combination with the third possible implementation manner of the first aspect, the present invention provides a fourth possible implementation manner of the first aspect, wherein positioning ribs are all disposed in the first socket, the second socket, the third socket and the fourth socket.

In combination with the second possible implementation manner of the first aspect, the present invention provides a fifth possible implementation manner of the first aspect, wherein the first elbow piece, the second elbow piece, the third elbow piece and the fourth elbow piece all include: a corner, a first plug and a second plug;

the corner portion is connected between the first plug and the second plug.

In combination with the fifth possible implementation manner of the first aspect, the present invention provides a sixth possible implementation manner of the first aspect, wherein the first plug and the second plug are both provided with positioning grooves.

With reference to the first possible implementation manner of the first aspect, the present invention provides a seventh possible implementation manner of the first aspect, wherein the metal frame further includes: a cross beam and a longitudinal beam;

the cross beam is crossed with the longitudinal beam, the cross beam is connected between the first frame and the third frame, and the longitudinal beam is connected between the second frame and the fourth frame;

the composite material joint also comprises adapter pieces, wherein the adapter pieces are bonded at two ends of the cross beam and two ends of the longitudinal beam;

the adapter is provided with a first step-type glue coating surface and a second step-type glue coating surface, the first step-type glue coating surface is attached to the rectangular frame, and the cross beam and the longitudinal beam are respectively attached to the second step-type glue coating surface.

In combination with the seventh possible implementation manner of the first aspect, the utility model provides an eighth possible implementation manner of the first aspect, wherein the adaptor is provided with a groove, and the first frame, the second frame, the third frame and the fourth frame are both provided with a limiting protrusion adapted to the groove.

In a second aspect, the present invention provides a battery pack including the lower case described in the first aspect.

The embodiment of the utility model provides a following beneficial effect has been brought: the metal frame is provided with a supporting part, the composite material joint is positioned at the supporting part and is fixedly bonded with the metal frame, the processing cost is low, the thermal deformation is avoided, the influence of processing stress factors is avoided, the combination of the metal frame and the composite material joint is realized, the external mechanical vibration impact can be resisted, and the weight of the lower box body can be reduced.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention or the related art, the drawings required to be used in the description of the embodiments or the related art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of a lower box provided in an embodiment of the present invention;

fig. 2 is an exploded view of a first side frame, a fourth side frame and a fourth elbow of the lower box according to the embodiment of the present invention;

fig. 3 is a partially enlarged schematic view of a joint between a first frame and a longitudinal beam of a lower box according to an embodiment of the present invention;

fig. 4 is a partial schematic view of a cross beam of the lower box provided by the embodiment of the present invention.

An icon: 100-a metal frame; 101-positioning ribs; 102-a limit protrusion; 103-glue injection holes; 110-a first border; 111-bottom edge rib; 120-a second bezel; 130-a third frame; 140-a fourth border; 150-a cross beam; 151-spreading the glue surface; 152-glue groove; 160-longitudinal beams; 010-a support portion; 011-first corner; 012-second corner; 013-third corner; 014-fourth corner; 200-a composite joint; 201-positioning grooves; 210-a first elbow piece; 211-corner section; 212-a first plug; 213-a second plug; 220-a second elbow piece; 230-a third elbow piece; 240-fourth elbow piece; 250-an adaptor; 251-a first step gluing surface; 252-second step gluing surface; 253-grooves.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "physical quantity" in the formula, unless otherwise noted, is understood to mean a basic quantity of a basic unit of international system of units, or a derived quantity derived from a basic quantity by a mathematical operation such as multiplication, division, differentiation, or integration.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in FIG. 1, the embodiment of the present invention provides a lower box, including: a metal frame 100 and a composite joint 200; the metal frame 100 has a supporting portion 010, the composite material joint 200 is located at the supporting portion 010, and the composite material joint 200 is adhesively fixed to the metal frame 100.

Specifically, the supporting portion 010 comprises corners of the lower box body and end portions of the reinforcing beam, the composite material connector 200 is fixedly bonded with the metal frame 100, welding and riveting are not needed, the bonding process is single, the processing cost is low, thermal deformation cannot occur, the structure of the lower box body cannot be affected by stress factors, and the structural stability is improved. In addition, since the composite material joint 200 is located at the supporting portion 010 of the metal frame 100, the composite material joint 200 can better alleviate the external mechanical vibration impact on the metal frame 100, and can reduce the weight of the lower box.

In the embodiment of the present invention, the metal frame 100 includes: a first bezel 110, a second bezel 120, a third bezel 130, and a fourth bezel 140; the first frame 110, the second frame 120, the third frame 130 and the fourth frame 140 are sequentially connected end to form a rectangular frame; a first corner 011 is formed between the first frame 110 and the second frame 120, a second corner 012 is formed between the second frame 120 and the third frame 130, a third corner 013 is formed between the third frame 130 and the fourth frame 140, and a fourth corner 014 is formed between the fourth frame 140 and the first frame 110; the supporting portion 010 includes: a first corner 011, a second corner 012, a third corner 013, and a fourth corner 014.

Specifically, combined material connects 200 is installed respectively to first corner 011, second corner 012, third corner 013 and fourth corner 014, so, can form stable support in four corners of box down, and combined material can slow down the vibrations impact better than the metal material, so make down the box possess better structural stability.

As shown in fig. 1 and 2, the composite material joint 200 includes: a first elbow piece 210, a second elbow piece 220, a third elbow piece 230, and a fourth elbow piece 240; the first elbow part 210 is adhered between the first frame 110 and the second frame 120, the second elbow part 220 is adhered between the second frame 120 and the third frame 130, the third elbow part 230 is adhered between the third frame 130 and the fourth frame 140, and the fourth elbow part 240 is adhered between the fourth frame 140 and the first frame 110. The first elbow piece 210, the second elbow piece 220, the third elbow piece 230 and the fourth elbow piece 240 all have corner connection functions, so that adjacent frames can extend in the vertical direction.

In this embodiment, two ends of the first frame 110 are both provided with first sockets, two ends of the second frame 120 are both provided with second sockets, two ends of the third frame 130 are both provided with third sockets, and two ends of the fourth frame 140 are both provided with fourth sockets; the first frame 110, the second frame 120, the third frame 130 and the fourth frame 140 are all provided with glue injection holes 103, and the first jack, the second jack, the third jack and the fourth jack are respectively communicated with the glue injection holes 103 in a fluid mode; one end of the first elbow piece 210 is inserted into a first insertion opening of the first frame 110, and the other end of the first elbow piece 210 is inserted into a second insertion opening of the second frame 120; one end of the second elbow piece 220 is inserted into the other second insertion hole of the second rim 120, and the other end of the second elbow piece 220 is inserted into one third insertion hole of the third rim 130; one end of the third elbow piece 230 is inserted into another third insertion opening of the third frame 130, and the other end of the third elbow piece 230 is inserted into a fourth insertion opening of the fourth frame 140; one end of the fourth elbow piece 240 is inserted into another fourth insertion hole of the fourth rim 140, and the other end of the fourth elbow piece 240 is inserted into another first insertion hole of the first rim 110. The end parts of the four elbow pieces are respectively inserted into the first inserting hole, the second inserting hole, the third inserting hole and the fourth inserting hole, a 0.5mm space is formed between the elbow pieces and the inner walls of the inserting holes, and glue can be coated between the elbow pieces and the inner walls of the inserting holes, so that the elbow pieces are tightly bonded with the frame.

Further, all be equipped with location muscle 101 in first socket, second socket, third socket and the fourth socket, location muscle 101 configuration is equipped with the supporting role for the socket for deep floor, can improve the structural stability of first frame 110, second frame 120, third frame 130 and fourth frame 140.

Further, the first, second, third and

fourth elbow pieces

210, 220, 230, 240 each include: a corner 211, a first plug 212, and a second plug 213; the corner 211 is connected between the first plug 212 and the second plug 213.

Specifically, the outer side of the corner portion 211 is configured as a round corner structure, the extending direction of the first plug 212 is perpendicular to the extending direction of the second plug 213, the first plug 212 is inserted into the socket of one side beam, and the second plug 213 is inserted into the socket of the other side beam adjacent to the side beam.

In addition, the first plug 212 and the second plug 213 are both provided with a positioning groove 201, and the positioning rib 101 is inserted into the positioning groove 201 during assembly, so that the elbow piece can be stably positioned relative to the frame.

As shown in fig. 1, 3 and 4, the metal frame 100 further includes: cross member 150 and longitudinal member 160; the cross beam 150 crosses the longitudinal beam 160, the cross beam 150 is connected between the first frame 110 and the third frame 130, and the longitudinal beam 160 is connected between the second frame 120 and the fourth frame 140; the composite material joint 200 further comprises adapters 250, wherein the adapters 250 are bonded to two ends of the cross beam 150 and two ends of the longitudinal beam 160; the adaptor 250 is provided with a first stepped glue spreading surface 251 and a second stepped glue spreading surface 252, the first stepped glue spreading surface 251 is attached to the rectangular frame, and the cross beam 150 and the longitudinal beam 160 are respectively attached to the second stepped glue spreading surface 252.

Specifically, the bottom ribs 111 are connected to the bottoms of the first frame 110, the second frame 120, the third frame 130, and the fourth frame 140, and the first stepped glue spreading surface 251 is attached to the inner wall surface of the frame and the bottom ribs 111. The end parts of the cross beam 150 and the longitudinal beam 160 are configured into a stepped structure and are provided with a transverse glue coating surface 151 and a glue groove 152 with an opening end surface perpendicular to the glue coating surface 151, and the opening end surface and the glue coating surface 151 of the glue groove 152 are respectively attached to a second stepped glue coating surface 252, so that the areas of a first stepped glue coating surface 251 and a second stepped glue coating surface 252 are increased, and the bonding strength of the cross beam 150 and the longitudinal beam 160 is improved.

The adapter 250 is provided with a groove 253, and the first frame 110, the second frame 120, the third frame 130 and the fourth frame 140 are provided with a limiting protrusion 102 matched with the groove 253. The limiting protrusion 102 is inserted into the groove 253, so that the cross beam 150 and the longitudinal beam 160 can be accurately positioned relative to the adapter 250, the gluing area of the first stepped gluing surface 251 is increased by arranging the groove 253, and the structure of the lower box body can be stable.

The embodiment of the utility model provides a battery package includes the lower box of above-mentioned embodiment record.

The embodiment of the utility model provides an in, the battery package utensil is equipped with the technical advantage of box down, no longer gives unnecessary details here.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the scope of the invention in its corresponding aspects.

Claims

1. A lower box, comprising: a metal frame (100) and a composite joint (200);

the metal frame (100) is provided with a supporting part (010), the composite material joint (200) is positioned at the supporting part (010), and the composite material joint (200) is fixedly bonded with the metal frame (100).

2. The lower box according to claim 1, characterized in that said metal frame (100) comprises: a first frame (110), a second frame (120), a third frame (130), and a fourth frame (140);

the first frame (110), the second frame (120), the third frame (130) and the fourth frame (140) are sequentially connected end to form a rectangular frame;

a first corner (011) is formed between the first frame (110) and the second frame (120), a second corner (012) is formed between the second frame (120) and the third frame (130), a third corner (013) is formed between the third frame (130) and the fourth frame (140), and a fourth corner (014) is formed between the fourth frame (140) and the first frame (110);

the support portion (010) includes: the first corner (011), the second corner (012), the third corner (013), and the fourth corner (014).

3. The lower box according to claim 2, characterized in that said composite joint (200) comprises: a first elbow piece (210), a second elbow piece (220), a third elbow piece (230), and a fourth elbow piece (240);

the first elbow piece (210) is bonded between the first frame (110) and the second frame (120), the second elbow piece (220) is bonded between the second frame (120) and the third frame (130), the third elbow piece (230) is bonded between the third frame (130) and the fourth frame (140), and the fourth elbow piece (240) is bonded between the fourth frame (140) and the first frame (110).

4. The lower case according to claim 3, wherein the first rim (110) is provided at both ends thereof with first insertion holes, the second rim (120) is provided at both ends thereof with second insertion holes, the third rim (130) is provided at both ends thereof with third insertion holes, and the fourth rim (140) is provided at both ends thereof with fourth insertion holes;

the first border (110), the second border (120), the third border (130) and the fourth border (140) are all provided with glue injection holes (103), and the first jack, the second jack, the third jack and the fourth jack are respectively communicated with the glue injection holes (103) in a fluid manner;

one end of the first elbow piece (210) is inserted into one first insertion opening of the first frame (110), and the other end of the first elbow piece (210) is inserted into one second insertion opening of the second frame (120);

one end of the second elbow piece (220) is inserted into the other second inserting hole of the second frame (120), and the other end of the second elbow piece (220) is inserted into one third inserting hole of the third frame (130);

one end of the third elbow piece (230) is inserted into another third insertion opening of the third frame (130), and the other end of the third elbow piece (230) is inserted into one fourth insertion opening of the fourth frame (140);

one end of the fourth elbow piece (240) is inserted into the other fourth insertion opening of the fourth frame (140), and the other end of the fourth elbow piece (240) is inserted into the other first insertion opening of the first frame (110).

5. The lower case according to claim 4, wherein a positioning rib (101) is provided in each of the first, second, third and fourth sockets.

6. The lower box body according to claim 3, wherein the first elbow piece (210), the second elbow piece (220), the third elbow piece (230) and the fourth elbow piece (240) each comprise: a corner portion (211), a first plug (212), and a second plug (213);

the corner portion (211) is connected between the first plug (212) and the second plug (213).

7. The lower box according to claim 6, characterized in that both the first plug (212) and the second plug (213) are provided with positioning slots (201).

8. The lower box according to claim 2, wherein said metal frame (100) further comprises: a cross beam (150) and a longitudinal beam (160);

the cross beam (150) crosses the longitudinal beam (160), the cross beam (150) is connected between the first frame (110) and the third frame (130), and the longitudinal beam (160) is connected between the second frame (120) and the fourth frame (140);

the composite material joint (200) further comprises adapters (250), and the adapters (250) are bonded to two ends of the cross beam (150) and two ends of the longitudinal beam (160);

adaptor (250) are equipped with first step rubber coating face (251) and second step rubber coating face (252), first step rubber coating face (251) with rectangular frame laminates, crossbeam (150) with longeron (160) laminate respectively in second step rubber coating face (252).

9. The lower box body as claimed in claim 8, wherein the adaptor (250) is provided with a groove (253), and the first rim (110), the second rim (120), the third rim (130) and the fourth rim (140) are provided with a limiting protrusion (102) matched with the groove (253).

10. A battery pack, characterized in that the battery pack comprises the lower case of any one of claims 1 to 9.