CN115434994B - Composite material cementing structure and method - Google Patents
Composite material cementing structure and method Download PDFInfo
- Publication number
- CN115434994B CN115434994B CN202211048728.2A CN202211048728A CN115434994B CN 115434994 B CN115434994 B CN 115434994B CN 202211048728 A CN202211048728 A CN 202211048728A CN 115434994 B CN115434994 B CN 115434994B
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- Prior art keywords
- mounting groove
- positioning ridge
- groove
- glue
- opening
- Prior art date
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- 239000002131 composite material Substances 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000003292 glue Substances 0.000 claims abstract description 55
- 238000009434 installation Methods 0.000 claims abstract description 14
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 12
- 238000002347 injection Methods 0.000 claims abstract description 12
- 239000007924 injection Substances 0.000 claims abstract description 12
- 239000000956 alloy Substances 0.000 claims description 12
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 239000006260 foam Substances 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
- F16B11/006—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by gluing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Standing Axle, Rod, Or Tube Structures Coupled By Welding, Adhesion, Or Deposition (AREA)
- Connection Of Plates (AREA)
Abstract
The application provides a composite material gluing structure and a method, comprising a connecting piece, wherein the connecting piece is provided with a mounting groove, one side of the mounting groove is opened, and a mounting space is formed in the mounting groove; a square positioning ridge and an arc positioning ridge are arranged on the inner wall of the mounting groove adjacent to the opening, the square positioning ridge is positioned at the opening of the mounting groove, the arc positioning ridge is positioned at one side of the inner wall of the mounting groove far away from the opening, and a glue containing groove is arranged between the square positioning ridge and the arc positioning ridge; and glue injection holes are formed in the side walls of the mounting grooves where the square positioning ridge and the arc positioning ridge are located, and are communicated with the glue containing grooves. Through setting up square location bank in the open mouth department of mounting groove, set up arc location bank on the inner wall that open mouth was kept away from to the mounting groove, and form between square location bank and the arc location bank and hold the gluey groove, realized treating the location installation of cementing work piece in the mounting groove, improved the straightness of treating cementing work piece, and limited the thickness of glue, help improving glued strength.
Description
Technical Field
The application relates to the technical field of connecting pieces, in particular to a composite material cementing structure and a method.
Background
The bonding is a process method for connecting two bonding members by using mechanical bonding force, physical adsorption force and chemical bonding force generated on a connecting surface by using an adhesive. The adhesive joint is not only suitable for the same kind of material, but also suitable for different kinds of material. The cementing process is simple and convenient, complex process equipment is not needed, and the cementing joint has good sealing property, electrical insulation property and corrosion resistance under the normal condition.
The prior art publication No. CN107323022B discloses a bonding connection structure of a composite material and a metal material and a preparation method thereof, wherein the bonding connection structure comprises a composite material connecting plate, a metal connecting piece and a reinforcing sheet, the metal connecting piece comprises a first sub-connecting plate, a second sub-connecting plate and a third sub-connecting plate which are mutually parallel and are arranged at intervals along the horizontal direction, the first sub-connecting plate is arranged above the second sub-connecting plate, the third sub-connecting plate and the first sub-connecting plate and the second sub-connecting plate form a connecting angle alpha of 20-90 degrees in the length direction, the composite material connecting plate is bonded with the second sub-connecting plate and the third sub-connecting plate through a first bonding layer, and the reinforcing sheet is simultaneously connected with the first sub-connecting plate and the composite material connecting plate through a second bonding layer.
The glue joint structure in the prior art is difficult to control the thickness of glue, and the flatness of the bonding plate is poor, so that the problem to be improved exists.
Disclosure of Invention
Aiming at the defects in the prior art, the application aims to provide a composite material bonding structure and a method.
The application provides a composite material gluing structure, which comprises a connecting piece, wherein a mounting groove is formed in the connecting piece, one side of the mounting groove is opened, and a mounting space is formed in the mounting groove; the mounting groove is provided with a square positioning ridge and an arc positioning ridge on the inner wall adjacent to the opening, the square positioning ridge is positioned at the opening of the mounting groove, the arc positioning ridge is positioned on one side of the inner wall of the mounting groove far away from the opening, and a glue containing groove is arranged between the square positioning ridge and the arc positioning ridge; glue injection holes are formed in the side walls of the mounting grooves where the square positioning ridge and the arc positioning ridge are located, and the glue injection holes are communicated with the glue containing grooves.
Preferably, the protrusions of the square positioning ridge and the arc positioning ridge on the same side wall of the mounting groove are the same in height, and the protrusions of the square positioning ridge and the arc positioning ridge are the thickness of the glue required by the process.
Preferably, a thermal expansion groove is formed between one side of the mounting groove away from the opening and the workpiece to be glued.
Preferably, a threaded connector is arranged on the side wall of the mounting groove opposite to the opening.
Preferably, any two of the installation grooves adjacent to the opening are provided with square positioning ridges and arc positioning ridges on the inner walls which are oppositely arranged.
Preferably, the two side walls of the square positioning ridge and the arc positioning ridge are arranged oppositely, and the distances from the open opening of the mounting groove to the inner wall of the mounting groove opposite to the open opening are equal.
Preferably, the inclination angle of the inner wall of the mounting groove opposite to the opening of the mounting groove is 45-90 degrees.
Preferably, the plurality of mounting grooves are formed in the connecting piece, and the included angle between any two mounting grooves is 0-180 degrees.
Preferably, the material of the connecting piece comprises an alloy material, and the material of the workpiece to be glued comprises a composite aluminum honeycomb, a paper honeycomb and a foam core; or the connecting piece is made of composite aluminum honeycomb, paper honeycomb and foam core, and the workpiece to be glued is made of alloy material.
According to the application, the bonding method of the composite material comprises the following steps:
s1, inserting a workpiece to be glued into the mounting groove, respectively clamping the workpiece to be glued by the square positioning ridge and the arc positioning ridge, and reserving a thermal expansion groove; s2, after the fact that the workpiece to be glued is inserted into the mounting groove stably is determined, glue is injected into the glue containing groove through the glue injection hole, and the glue containing groove is filled; s3, waiting for the glue to be cured completely.
Compared with the prior art, the application has the following beneficial effects:
1. according to the application, the square positioning ridge is arranged at the opening of the mounting groove, the arc positioning ridge is arranged on the inner wall of the mounting groove far away from the opening, and the glue containing groove is formed between the square positioning ridge and the arc positioning ridge, so that the positioning and mounting of the workpiece to be glued in the mounting groove are realized, the flatness of the workpiece to be glued is improved, the thickness of glue is limited, and the glue strength is improved.
2. According to the application, the arc-shaped positioning ridge is arranged in the mounting groove, so that convenience in inserting the workpiece to be glued in place in the mounting groove is improved, and the workpiece to be glued can be allowed to have a larger tolerance range.
3. The application solves the problem of the thermal expansion space of the alloy part through the reserved thermal expansion groove, and achieves the aim of weakening the thermal stress generated by the alloy and the composite material when the temperature changes.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of a bonding connection structure of a workpiece to be bonded and a connecting piece according to the present application;
fig. 2 is a schematic diagram showing that the connecting piece is connected with two workpieces to be glued in a gluing way.
The figure shows:
arc-shaped positioning ridge 1 heat expansion groove 5
Square positioning ridge 2 workpiece 6 to be glued
Screw joint 7 of glue containing groove 3
Glue injection hole 4
Detailed Description
The present application will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present application, but are not intended to limit the application in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present application.
Example 1
As shown in fig. 1, the composite material bonding structure provided by the application comprises a connecting piece, wherein an installation groove is integrally formed on the connecting piece, one side of the installation groove is opened, an installation space is formed in the installation groove, and the installation space is used for accommodating a workpiece 6 to be bonded. The mounting groove has square location bank 2 and arc location bank 1 with the adjacent inner wall of open mouth integrated into one piece on, and square location bank 2 is located the open mouth department of mounting groove, and arc location bank 1 is located the mounting groove inner wall and keeps away from open one side. And be formed with between square location bank 2 and the arc location bank 1 and hold gluey groove 3, be formed with injecting glue hole 4 on the mounting groove lateral wall that square location bank 2 and arc location bank 1 are located, injecting glue hole 4 and hold gluey groove 3 intercommunication.
The square positioning ridge 2 and the arc positioning ridge 1 can be used for positioning when the workpiece 6 to be glued is inserted into the mounting groove, the arc positioning ridge 1 arranged on the inner wall of the mounting groove far away from the opening can reduce the resistance when the workpiece 6 to be glued is inserted into the mounting groove, and the workpiece 6 to be glued with larger mechanical tolerance can be smoothly inserted into the mounting groove in place by virtue of the guiding function of the arc surface of the arc positioning ridge 1. It should be noted that the workpiece 6 to be glued according to the present application may be a plate, a cylindrical member, a rectangular member, or the like, or a workpiece of a regular shape or an irregular shape.
If the square positioning ridge 2 is adopted at the open opening of the mounting groove and the inside of the mounting groove, when the workpiece 6 to be glued is inserted into the mounting groove, the square positioning ridge 2 positioned in the mounting groove is difficult to insert, especially when the workpiece 6 to be glued has a larger tolerance.
By means of the cooperation of the square positioning ridge 2 positioned at the opening of the mounting groove and the arc positioning ridge 1 inside the mounting groove, the workpiece 6 to be glued can be inserted into the mounting groove more accurately, the workpiece 6 to be glued is more straight, and the workload of subsequent tool adjustment is reduced. In particular, when the workpiece 6 to be bonded is a plate-shaped member, the straightening effect thereof is more remarkable.
In particular, the connection may be welded or directly pultruded from an alloy material. The workpiece 6 to be glued is made of composite materials, including one or more of composite aluminum honeycomb, paper honeycomb and foam core.
Another possible implementation is: the connector may be made of a composite material including one or more of a composite aluminum honeycomb, a paper honeycomb, a foam core. The workpiece 6 to be glued is made of alloy material.
It should be noted that the adhesive bonding connection structure of the present application can be applied not only to the adhesive bonding of alloy materials and composite materials, but also to adhesive bonding connection between alloy materials and between composite materials.
More specifically, the protruding heights of the square positioning ridge 2 and the arc positioning ridge 1 positioned on the side wall of the same mounting groove are the same, and the protruding heights of the square positioning ridge 2 and the arc positioning ridge 1 are the thickness of the glue required by the process. The protruding heights of the square positioning ridge 2 and the arc positioning ridge 1 determine the thickness of the glue containing groove 3, so that the square positioning ridge 2 and the arc positioning ridge 1 also have the function of limiting the thickness of glue.
Taking epoxy bonding as an example: one design requirement is that the optimal bonding thickness of the epoxy resin is 0.3mm, and the optimal bonding strength is achieved, so that the protrusion heights of the square positioning ridge 2 and the arc positioning ridge 1 can be designed to be 0.3mm to ensure the optimal bonding strength.
Further, the glue groove 3 is used for accommodating glue with a certain thickness, and the width of the glue groove needs to be changed according to actual design requirements so as to achieve an ideal bonding area. And the width of the sol groove depends on the interval distance between the square positioning ridge 2 and the arc positioning ridge 1.
Still further, the glue injection hole 4 is used for injecting glue into the glue containing groove 3, but when the injected glue is too much, the glue can flow out from the glue injection hole 4. The application can also arrange the threaded connector 7 on the side wall of the mounting groove opposite to the opening, the threaded connector 7 can be externally connected with other workpieces, and the connecting piece and the workpiece 6 to be glued can be further reinforced by using a fastener.
During installation, a thermal expansion groove 5 is formed between one side of the installation groove away from the opening and the workpiece 6 to be glued. The thermal expansion groove 5 is a space for giving thermal expansion to the alloy member, and reduces thermal stress generated when the temperature of the alloy and the composite material changes due to different thermal expansion coefficients.
The application has the preferable scheme that: and square positioning ridge 2 and arc positioning ridge 1 are arranged on the inner walls of any two adjacent installation grooves and the opening, which are oppositely arranged. The two side walls which are arranged oppositely are arranged on the square positioning ridge 2 and the arc positioning ridge 1, and the distances from the open opening of the mounting groove to the inner wall of the mounting groove opposite to the open opening are equal.
The application has the preferable scheme that: the inclination angle of the inner wall of the mounting groove opposite to the opening of the mounting groove is 45-90 degrees.
According to the bonding method of the composite material, which is provided by the application, the bonding structure is adopted, and the bonding method comprises the following steps:
s1, inserting a workpiece 6 to be glued into the mounting groove, respectively clamping the workpiece 6 to be glued by the square positioning ridge 2 and the arc positioning ridge 1, and reserving the thermal expansion groove 5. The width of the thermal expansion tank 5 should be determined according to the result of thermal expansion FEA of the actual structure in use.
S2, after the fact that the workpiece 6 to be glued is inserted into the mounting groove stably is confirmed, glue is injected into the glue containing groove 3 through the glue injection holes 4, and the glue containing groove 3 is filled.
S3, waiting for the glue to be cured completely.
Example 2
According to the first embodiment of the application, a plurality of mounting grooves are integrally formed on the connecting piece, and the included angle between any two adjacent mounting grooves is 0-180 degrees.
As shown in fig. 2, the connecting piece is provided with two mounting grooves with an included angle of 90 degrees, the workpiece 6 to be glued is a plate, the two plates are respectively inserted into the two mounting grooves and glued by adopting the scheme of the first embodiment, so that the gluing reliability of the two plates can be improved, and the included angle of the mounting grooves on the connecting piece can be designed according to the angle of actual needs, so that the gluing convenience and accuracy of the two workpieces 6 to be glued are improved.
It should be noted that the structure of both mounting grooves is designed according to the corresponding work piece 6 to be glued.
Principle of operation
Inserting a workpiece 6 to be glued into the mounting groove, respectively clamping the workpiece 6 to be glued by both the square positioning ridge 2 and the arc positioning ridge 1, and reserving the thermal expansion groove 5; the width of the thermal expansion tank 5 should be determined according to the result of thermal expansion FEA of the actual structure in use; after the fact that the workpiece 6 to be glued is inserted into the mounting groove stably is determined, glue is injected into the glue containing groove 3 through the glue injection holes 4, and the glue containing groove 3 is filled; waiting for the glue to solidify completely.
In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
The foregoing describes specific embodiments of the present application. It is to be understood that the application is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the application. The embodiments of the application and the features of the embodiments may be combined with each other arbitrarily without conflict.
Claims (6)
1. The composite material gluing structure is characterized by comprising a connecting piece, wherein a mounting groove is formed in the connecting piece, one side of the mounting groove is opened, and a mounting space is formed in the mounting groove;
the mounting groove is provided with a square positioning ridge (2) and an arc positioning ridge (1) on the inner wall adjacent to the opening, the square positioning ridge (2) is positioned at the opening of the mounting groove, the arc positioning ridge (1) is positioned on one side, far away from the opening, of the inner wall of the mounting groove, and a glue containing groove (3) is arranged between the square positioning ridge (2) and the arc positioning ridge (1);
the side wall of the mounting groove where the square positioning ridge (2) and the arc positioning ridge (1) are located is provided with a glue injection hole (4), and the glue injection hole (4) is communicated with the glue containing groove (3);
only one arc-shaped positioning ridge (1) is arranged;
the protrusion heights of the square positioning ridge (2) and the arc positioning ridge (1) which are positioned on the same side wall of the mounting groove are the same, and the protrusion heights of the square positioning ridge (2) and the arc positioning ridge (1) are the thickness of the glue required by the process;
a thermal expansion groove (5) is formed between one side of the mounting groove, which is away from the opening, and the workpiece (6) to be glued;
the installation grooves are formed in the connecting piece, and the included angle between any two installation grooves is 0-180 degrees;
the connecting piece is made of alloy materials, and the workpiece (6) to be glued is made of composite aluminum honeycomb, paper honeycomb and foam core;
or the connecting piece comprises a composite material aluminum honeycomb, a paper honeycomb and a foam core, and the workpiece (6) to be glued is made of an alloy material;
the connecting piece is provided with two mounting grooves with an included angle of 90 degrees, the workpiece (6) to be glued is a plate, and the two plates are respectively inserted into the two mounting grooves for gluing.
2. A composite material gluing structure according to claim 1, characterized in that the side wall of the mounting groove opposite the opening is provided with a threaded connection head (7).
3. The composite material bonding structure according to claim 1, wherein any two of the inner walls of the mounting groove adjacent to the opening are provided with square positioning ridges (2) and arc positioning ridges (1) which are arranged oppositely.
4. A composite material gluing structure according to claim 3, wherein the mounting groove is provided with two side walls which are arranged opposite to each other and are square positioning ridges (2) and arc positioning ridges (1), and the distances from the opening of the mounting groove to the inner wall of the mounting groove opposite to the opening are equal.
5. The composite material bonded structure of claim 1, wherein an inclination angle of an inner wall of the installation groove opposite to the opening of the installation groove is 45 degrees to 90 degrees.
6. A method of bonding a composite material, characterized in that a composite material bonding structure according to any one of claims 1-5 is used, the bonding method comprising the steps of:
s1, inserting a workpiece (6) to be glued into the mounting groove, respectively clamping the workpiece (6) to be glued by the square positioning ridge (2) and the arc positioning ridge (1), and reserving a thermal expansion groove (5);
s2, after the fact that the workpiece (6) to be glued is inserted into the mounting groove stably is confirmed, glue is injected into the glue containing groove (3) through the glue injection hole (4) and the glue containing groove (3) is filled;
s3, waiting for the glue to be cured completely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211048728.2A CN115434994B (en) | 2022-08-30 | 2022-08-30 | Composite material cementing structure and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211048728.2A CN115434994B (en) | 2022-08-30 | 2022-08-30 | Composite material cementing structure and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115434994A CN115434994A (en) | 2022-12-06 |
| CN115434994B true CN115434994B (en) | 2023-09-12 |
Family
ID=84245026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211048728.2A Active CN115434994B (en) | 2022-08-30 | 2022-08-30 | Composite material cementing structure and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115434994B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118387196B (en) * | 2024-06-25 | 2024-10-11 | 比亚迪股份有限公司 | Panel coupling assembling, floor and vehicle |
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|---|---|---|---|---|
| US1292072A (en) * | 1918-03-30 | 1919-01-21 | Leo J F Rooney | Expansion-pipe sleeve. |
| EP0863358A1 (en) * | 1997-03-03 | 1998-09-09 | Polva Pipelife B.V. | Coupling sleeve for a glue coupling |
| US5851036A (en) * | 1995-12-14 | 1998-12-22 | Vanesky; Frank W. | Permanent fitting for fluid-tight connections |
| CN101910651A (en) * | 2007-12-27 | 2010-12-08 | 日本管洗工业株式会社 | The joint method of metal member and connected structure |
| CN203746916U (en) * | 2013-12-25 | 2014-07-30 | 天能电池集团有限公司 | Lead-acid storage battery box capable of preventing adhesive overflowing |
| DE102013007423A1 (en) * | 2013-04-29 | 2014-10-30 | Audi Ag | Arrangement for connecting two components with different thermal expansion coefficients and associated motor vehicle body |
| CN211449310U (en) * | 2019-11-27 | 2020-09-08 | 广东伊米多里实业有限公司 | Cabinet corner connecting piece and cabinet |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006138455A2 (en) * | 2005-06-15 | 2006-12-28 | Panterra Engineered Plastics, Inc. | Housing created from high strength expanded thermoformable honeycomb structures with cementitious reinforcement |
-
2022
- 2022-08-30 CN CN202211048728.2A patent/CN115434994B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1292072A (en) * | 1918-03-30 | 1919-01-21 | Leo J F Rooney | Expansion-pipe sleeve. |
| US5851036A (en) * | 1995-12-14 | 1998-12-22 | Vanesky; Frank W. | Permanent fitting for fluid-tight connections |
| EP0863358A1 (en) * | 1997-03-03 | 1998-09-09 | Polva Pipelife B.V. | Coupling sleeve for a glue coupling |
| CN101910651A (en) * | 2007-12-27 | 2010-12-08 | 日本管洗工业株式会社 | The joint method of metal member and connected structure |
| DE102013007423A1 (en) * | 2013-04-29 | 2014-10-30 | Audi Ag | Arrangement for connecting two components with different thermal expansion coefficients and associated motor vehicle body |
| CN203746916U (en) * | 2013-12-25 | 2014-07-30 | 天能电池集团有限公司 | Lead-acid storage battery box capable of preventing adhesive overflowing |
| CN211449310U (en) * | 2019-11-27 | 2020-09-08 | 广东伊米多里实业有限公司 | Cabinet corner connecting piece and cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115434994A (en) | 2022-12-06 |
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Inventor after: Wang Yuhan Inventor after: Hu Yehui Inventor before: Wang Yuhan Inventor before: Hu Yehui |