CN215834651U - Lower box frame and power battery - Google Patents
Lower box frame and power battery Download PDFInfo
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- CN215834651U CN215834651U CN202122352780.4U CN202122352780U CN215834651U CN 215834651 U CN215834651 U CN 215834651U CN 202122352780 U CN202122352780 U CN 202122352780U CN 215834651 U CN215834651 U CN 215834651U
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- end plate
- positioning end
- cross beam
- longitudinal beam
- lower box
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model provides a lower box body frame and a power battery, relating to the technical field of power batteries, and the lower box body frame provided by the utility model comprises: a frame, a beam and a longitudinal beam; the cross beam and the longitudinal beam are respectively arranged in the frame; the cross beam is crossed with the longitudinal beam, and the longitudinal beam penetrates through the notch in the cross beam. According to the lower box body frame and the power battery, the cross beam and the longitudinal beam can be compactly matched, so that the cross beam can be prevented from deflecting relative to the longitudinal beam, and the cross beam and the longitudinal beam can be supported in the side frame together, so that the shape stability of the lower box body frame is improved.
Description
Technical Field
The utility model relates to the technical field of power batteries, in particular to a lower box body frame and a power battery.
Background
The cross beam and the longitudinal beam are fixed inside the lower box body of the power battery in a welding mode, and the cross beam and the longitudinal beam bear stress through welding seams, so that the technical problems that the welding seams have high bearing pressure and are easy to weld loose are solved. In addition, the cross part of the cross beam and the longitudinal beam is connected in a welding mode, and under the condition that the stress bearing capacity of a welding seam is limited, the connecting part of the cross beam and the longitudinal beam is easy to loosen, so that the shape stability of the lower box body is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a lower box body frame and a power battery, so as to solve the technical problem that the shape stability of the lower box body frame is poor in the prior art.
In a first aspect, the present invention provides a lower case frame comprising: a frame, a beam and a longitudinal beam;
the cross beam and the longitudinal beam are respectively arranged in the frame;
the cross beam is crossed with the longitudinal beam, and the longitudinal beam penetrates through the notch in the cross beam.
With reference to the first aspect, the present invention provides a first possible implementation manner of the first aspect, wherein the lower box frame further includes a reinforcing member, and the cross member and the longitudinal member are respectively connected to the reinforcing member.
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 reinforcing member includes a first bracket, the first bracket has a first positioning end plate and a second positioning end plate connected to the first positioning end plate, and the first positioning end plate and the second positioning end plate have an included angle;
the first positioning end plate is perpendicular to the extending direction of the longitudinal beam and connected with the cross beam;
the second positioning end plate is connected with the top surface of the longitudinal beam.
In combination with the first possible embodiment of the first aspect, the present disclosure provides a third possible embodiment of the first aspect, wherein the reinforcement comprises a second bracket;
the beam is provided with an embedded groove communicated with the notch, the second support is installed in the embedded groove, the second support is provided with a third positioning end plate and a fourth positioning end plate connected with the third positioning end plate, and an included angle is formed between the third positioning end plate and the fourth positioning end plate;
the third positioning end plate is perpendicular to the extending direction of the cross beam and connected with the longitudinal beam;
the fourth positioning end plate is connected with the cross beam.
With reference to the third possible implementation manner of the first aspect, the present invention provides a fourth possible implementation manner of the first aspect, wherein a partition plate is installed in the cross beam, and the fourth positioning end plate is connected to the partition plate.
With reference to the first aspect, the present invention provides a fifth possible implementation manner of the first aspect, wherein the frame is provided with a socket, and an end of the beam is provided with a plug, and the plug is inserted into the socket.
With reference to the first aspect, the present invention provides a sixth possible implementation manner of the first aspect, wherein a first supporting platform and a second supporting platform are arranged on an inner side wall of the side frame;
the first extending parts at two ends of the cross beam are correspondingly abutted against the top surfaces of the two first supporting tables one by one;
the second extending parts at two ends of the longitudinal beam are correspondingly abutted to the top surfaces of the two second supporting tables one by one.
With reference to the first aspect, the present invention provides a seventh possible implementation manner of the first aspect, wherein the lower box frame further includes: the water cooling plate, the sleeve, the first fastener and the thread sleeve;
the sleeve penetrates through the water cooling plate and the cross beam, the first fastening piece is mounted at the bottom of the sleeve and abuts against the bottom surface of the water cooling plate;
the threaded sleeve is arranged on the sleeve and is abutted against the top surface of the cross beam.
With reference to the seventh possible implementation manner of the first aspect, the present invention provides an eighth possible implementation manner of the first aspect, wherein a second fastening member is installed at the top of the screw sleeve; the threaded sleeve penetrates through the box cover, and the second fastening piece is abutted to the top surface of the box cover.
In a second aspect, the utility model provides a power battery having the lower case frame provided in the first aspect.
The embodiment of the utility model has the following beneficial effects: the transverse beam and the longitudinal beam are respectively arranged in the frame and are crossed with each other through the transverse beam, and the longitudinal beam penetrates through the notch in the transverse beam, so that the transverse beam and the longitudinal beam are in compact fit, the transverse beam can be prevented from deflecting relative to the longitudinal beam, the transverse beam and the longitudinal beam can be jointly supported in the frame, and the shape stability of the lower box body frame is improved.
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 related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of a lower box frame according to an embodiment of the present invention;
FIG. 2 is an exploded view of a lower box frame according to an embodiment of the present invention;
FIG. 3 is a schematic view of the connection between the cross beams and the longitudinal beams of the lower box frame and the first support according to the embodiment of the utility model;
FIG. 4 is a schematic view of the connection between the cross beams and the longitudinal beams of the lower box frame and the second bracket according to the embodiment of the utility model;
FIG. 5 is a schematic diagram of a side frame of a lower box frame according to an embodiment of the present invention;
FIG. 6 is a schematic view of a cross member of a lower box frame according to an embodiment of the present invention;
FIG. 7 is a schematic view of a stringer of a lower box frame according to an embodiment of the present invention;
fig. 8 is a schematic view of a cross beam, a water-cooling plate, a sleeve, a first fastener, a threaded sleeve and a second fastener of a lower box frame according to an embodiment of the utility model.
Icon: 001-frame; 101-a socket; 110-a first support table; 120-a second support table; 002-beam; 201-notch; 202-inner embedded groove; 203-a plug; 204-a first extension; 210-a separator; 003-longitudinal beam; 301-a second extension; 004-reinforcement; 410-a first scaffold; 411-a first positioning end plate; 412-a second positioning end plate; 420-a second bracket; 421-a third positioning end plate; 422-a fourth positioning end plate; 005-water cooling plate; 006-sleeve; 007-first fastener; 008-thread insert; 009-a second fastener; 010-a first seal; 011-a second seal; 012-third seal.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within 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", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular 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, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
As shown in fig. 1 and 2, a lower case frame according to an embodiment of the present invention includes: a frame 001, a beam 002 and a stringer 003; the cross beam 002 and the longitudinal beam 003 are respectively arranged inside the frame 001; the cross beam 002 crosses the longitudinal beam 003, and the longitudinal beam 003 passes through the notch 201 on the cross beam 002.
Specifically, the longitudinal beam 003 is inserted into the notch 201 on the transverse beam 002, so that the transverse beam 002 is compactly matched with the longitudinal beam 003, and the transverse beam 002 is prevented from deflecting relative to the longitudinal beam 003. In addition, the internal face of notch 201 closely laminates with the side of longeron 003, can avoid longeron 003 to remove along the extending direction of crossbeam 002 for crossbeam 002 from this, and can ensure that the contained angle of crossbeam 002 and longeron 003 is stable, supports the inside at frame 001 through crossbeam 002 and longeron 003 jointly to the structural stability of box frame under the improvement.
In the embodiment of the present invention, the lower box frame further includes a reinforcing member 004, and the cross member 002 and the longitudinal member 003 are respectively connected to the reinforcing member 004.
Specifically, crossbeam 002 and longeron 003 are connected with reinforcement 004 through threaded fastener respectively to can make crossbeam 002 fixed for longeron 003, and then crossbeam 002 and longeron 003's mounted position is stable, can avoid crossbeam 002 and longeron 003 to produce not hard up for frame 001.
As shown in fig. 2 and 3, the reinforcement 004 comprises a first bracket 410, the first bracket 410 having a first positioning end plate 411 and a second positioning end plate 412 connected to the first positioning end plate 411, the first positioning end plate 411 and the second positioning end plate 412 having an included angle; the first positioning end plate 411 is perpendicular to the extending direction of the longitudinal beam 003, and the first positioning end plate 411 is connected with the cross beam 002; the second positioning end plate 412 is connected to the top surface of the stringer 003.
Specifically, a rib plate is connected between the first positioning end plate 411 and the second positioning end plate 412, and a stable included angle is formed between the first positioning end plate 411 and the second positioning end plate 412 through the support of the rib plate. In this embodiment, the first positioning end plate 411 is perpendicular to the second positioning end plate 412, the first positioning end plate 411 abuts against the cross beam 002, the second positioning end plate 412 abuts against the top surface of the longitudinal beam 003, the first positioning end plate 411 and the cross beam 002 are connected by bolts, and the second positioning end plate 412 and the longitudinal beam 003 are connected by bolts. First brackets 410 are respectively mounted on both sides of the cross beam 002, and the cross beam 002 is limited between the two first brackets 410, so that the cross beam 002 is fixed relative to the longitudinal beam 003.
As shown in fig. 2, 4 and 6, the reinforcement 004 includes a second bracket 420; the cross beam 002 is provided with an embedded groove 202 communicated with the notch 201, the second support 420 is installed in the embedded groove 202, the second support 420 is provided with a third positioning end plate 421 and a fourth positioning end plate 422 connected with the third positioning end plate 421, and an included angle is formed between the third positioning end plate 421 and the fourth positioning end plate 422; the third positioning end plate 421 is perpendicular to the extending direction of the cross beam 002, and the third positioning end plate 421 is connected with the longitudinal beam 003; the fourth positioning end plate 422 is connected to the cross member 002.
Specifically, notch 201 and embedded groove 202's opening all are located the bottom of crossbeam 002, during the assembly earlier with longeron 003 install to notch 201, install second support 420 again to embedded groove 202 in, be connected crossbeam 002 and longeron 003 with second support 420 respectively through the bolt, under the fixed condition of crossbeam 002 for longeron 003, install crossbeam 002 and longeron 003 in the inside of frame 001 jointly. The both sides of notch 201 are equipped with interior caulking groove 202 respectively, all install second support 420 in two interior caulking grooves 202, and longeron 003 is spacing between two second supports 420 to improve longeron 003 for the stability of crossbeam 002.
Further, a partition 210 is installed in the cross beam 002, and a fourth positioning end plate 422 is connected with the partition 210.
Specifically, the partition 210 is installed in the inner cavity of the cross beam 002, and the structural strength of the cross beam 002 is improved by the support of the partition 210. The third positioning end plate 421 is connected to the longitudinal beam 003 by a bolt, and the fourth positioning end plate 422 is connected to the partition plate 210 by a bolt, so that the cross beam 002 can be stably connected to the longitudinal beam 003.
As shown in fig. 5 and 6, the bezel 001 is provided with a socket 101, the end of the cross bar 002 is provided with a plug 203, and the plug 203 is inserted into the socket 101.
Specifically, along the extending direction of the cross member 002, two sockets 101 are arranged oppositely, and the plugs 203 at both ends of the cross member 002 are inserted into the two sockets 101 in one-to-one correspondence, thereby ensuring the positional stability of the cross member 002 with respect to the frame 001 in the direction extending along the longitudinal beams 003. In addition, crossbeam 002 passes through welded connection with frame 001, under the spacing condition of socket 101 to crossbeam 002, has reduced the stress that the welding seam bore between crossbeam 002 and frame 001.
As shown in fig. 1, 2, 5, 6 and 7, the inner sidewall of the frame 001 is provided with a first support stage 110 and a second support stage 120; the first extending portions 204 at the two ends of the cross beam 002 are abutted against the top surfaces of the two first supporting platforms 110 in a one-to-one correspondence manner; the second extending portions 301 at the two ends of the longitudinal beam 003 are abutted against the top surfaces of the two second supporting platforms 120 in a one-to-one correspondence.
Specifically, the frame 001 encloses to form a cavity with a rectangular cross section, the cross beam 002 is located between the two first supporting tables 110, and the first extending portions 204 at the two ends of the cross beam 002 are correspondingly installed on the top surfaces of the two first supporting tables 110. The longitudinal beams 003 are located between the two second supporting platforms 120, the second extending portions 301 at the two ends of the longitudinal beams 003 are correspondingly mounted on the top surfaces of the two second supporting platforms 120, the two first supporting platforms 110 support the transverse beams 002, and the two second supporting platforms 120 support the longitudinal beams 003, so that the stability of the transverse beams 002 and the longitudinal beams 003 relative to the frame 001 can be improved.
As shown in fig. 1, 2 and 8, the lower case frame further includes: a water-cooled plate 005, a sleeve 006, a first fastener 007 and a thread insert 008; the sleeve 006 passes through the water cooling plate 005 and the cross beam 002, the first fastener 007 is installed at the bottom of the sleeve 006, and the first fastener 007 abuts against the bottom surface of the water cooling plate 005; the screw 008 is mounted on the sleeve 006, and the screw 008 abuts against the top surface of the cross member 002.
Specifically, water-cooling plate 005 butt in the bottom surface of frame 001, first fastener 007 butt in the bottom surface of water-cooling plate 005, swivel nut 008 butt in the top surface of crossbeam 002, carry out spacing fixed to longeron 003 through crossbeam 002.
It should be noted that there are three beams 002, three beams 002 are all perpendicular to the longitudinal beam 003, and one beam 002 located between another two beams 002 is installed at the center of the longitudinal beam 003 in the length direction, and the sleeve 006, the first fastener 007, the thread insert 008 and the second fastener 009 constitute a hoisting point mechanism installed on the beam 002 located in the middle of the longitudinal beam 003.
Further, a second fastening piece 009 is mounted at the top of the screw sleeve 008; the thread insert 008 penetrates through the case cover, and the second fastening piece 009 abuts against the top surface of the case cover.
Specifically, the box cover can be fixed relative to the cross beam 002, and when the battery box is lifted, the lifting appliance can pass through the second fastener 009, the screw 008 and the sleeve 006, so that the lifting appliance can be connected to the battery box.
Further, a first sealing member 010 is installed between the second fastening member 009 and the screw boss 008, a second sealing member 011 is installed between the screw boss 008 and the sleeve 006, and a third sealing member 012 is installed between the first fastening member 007 and the water-cooled plate 005. Outside water can pass through second fastener 009, swivel nut 008 and sleeve 006 from the top down in proper order, seal through first sealing member 010 between second fastener 009 and the swivel nut 008, seal through second sealing member 011 between swivel nut 008 and the sleeve 006, seal through third sealing member 012 between first fastener 007 and the water-cooling board 005, first sealing member 010, second sealing member 011 and third sealing member 012 all can adopt cushion or sealed glue, and then can avoid inside the lower box frame of water infiltration.
Example two
As shown in fig. 1 and 8, the power battery provided by the embodiment of the utility model has a lower case frame provided by the first embodiment.
In the embodiment of the utility model, the power battery has the technical effect of the lower box body frame, the structural stability of the lower box body frame is improved, the sleeve 006, the first fastener 007, the threaded sleeve 008 and the second fastener 009 jointly form a lifting point mechanism, the water cooling plate 005, the cross beam 002 and the box cover are further assembled and fixed through the lifting point mechanism, and water can flow through an axial pipeline formed by the threaded sleeve 008 and the sleeve 006 under the joint action of the first sealing element 010, the second sealing element 011 and the third sealing element 012, so that the water can be prevented from permeating into the box body of the power battery.
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; while the utility model has been described in detail and with reference to the foregoing embodiments, it will 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; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A lower case frame, comprising: the frame (001), the cross beam (002) and the longitudinal beam (003);
the cross beam (002) and the longitudinal beam (003) are respectively arranged inside the frame (001);
the cross beam (002) is crossed with the longitudinal beam (003), and the longitudinal beam (003) penetrates through a notch (201) in the cross beam (002).
2. The lower box frame according to claim 1, further comprising a reinforcement (004), wherein the cross member (002) and the side member (003) are connected to the reinforcement (004), respectively.
3. A lower box frame according to claim 2, characterised in that the reinforcement (004) comprises a first bracket (410), the first bracket (410) having a first locating end plate (411) and a second locating end plate (412) connecting the first locating end plate (411), the first locating end plate (411) being angled to the second locating end plate (412);
the first positioning end plate (411) is perpendicular to the extending direction of the longitudinal beam (003), and the first positioning end plate (411) is connected with the cross beam (002);
the second positioning end plate (412) is connected with the top surface of the longitudinal beam (003).
4. The lower box frame according to claim 2, wherein the reinforcement (004) comprises a second bracket (420);
the cross beam (002) is provided with an embedded groove (202) communicated with the notch (201), the second support (420) is installed in the embedded groove (202), the second support (420) is provided with a third positioning end plate (421) and a fourth positioning end plate (422) connected with the third positioning end plate (421), and an included angle is formed between the third positioning end plate (421) and the fourth positioning end plate (422);
the third positioning end plate (421) is perpendicular to the extending direction of the cross beam (002), and the third positioning end plate (421) is connected with the longitudinal beam (003);
the fourth positioning end plate (422) is connected with the cross beam (002).
5. The lower box frame according to claim 4, wherein a partition plate (210) is installed in the cross member (002), and the fourth positioning end plate (422) is connected to the partition plate (210).
6. The lower box frame according to claim 1, characterized in that the rim (001) is provided with a socket (101), the end of the cross beam (002) is provided with a plug (203), and the plug (203) is inserted into the socket (101).
7. The lower case frame according to claim 1, wherein the inner side wall of the rim (001) is provided with a first support table (110) and a second support table (120);
the first extending parts (204) at two ends of the cross beam (002) are correspondingly abutted against the top surfaces of the two first supporting tables (110) one by one;
the second extending parts (301) at two ends of the longitudinal beam (003) are correspondingly abutted against the top surfaces of the two second supporting platforms (120) one by one.
8. The lower case frame of claim 1, further comprising: the water cooling plate (005), the sleeve (006), the first fastener (007) and the thread sleeve (008);
the sleeve (006) penetrates through the water cooling plate (005) and the cross beam (002), the first fastener (007) is installed at the bottom of the sleeve (006), and the first fastener (007) abuts against the bottom surface of the water cooling plate (005);
the thread insert (008) is mounted on the sleeve (006), and the thread insert (008) abuts against the top surface of the cross beam (002).
9. The lower case frame of claim 8, wherein a second fastening member (009) is installed at the top of the screw boss (008);
the thread insert (008) penetrates through the box cover, and the second fastening piece (009) abuts against the top surface of the box cover.
10. A power cell, characterized in that it has a lower case frame according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122352780.4U CN215834651U (en) | 2021-09-27 | 2021-09-27 | Lower box frame and power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122352780.4U CN215834651U (en) | 2021-09-27 | 2021-09-27 | Lower box frame and power battery |
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| Publication Number | Publication Date |
|---|---|
| CN215834651U true CN215834651U (en) | 2022-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122352780.4U Active CN215834651U (en) | 2021-09-27 | 2021-09-27 | Lower box frame and power battery |
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| CN (1) | CN215834651U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114784430A (en) * | 2022-04-11 | 2022-07-22 | 中创新航科技股份有限公司 | Battery device and assembling method thereof |
| CN116345035A (en) * | 2023-03-21 | 2023-06-27 | 上汽通用汽车有限公司 | Battery pack and vehicle |
-
2021
- 2021-09-27 CN CN202122352780.4U patent/CN215834651U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114784430A (en) * | 2022-04-11 | 2022-07-22 | 中创新航科技股份有限公司 | Battery device and assembling method thereof |
| CN116345035A (en) * | 2023-03-21 | 2023-06-27 | 上汽通用汽车有限公司 | Battery pack and vehicle |
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