CN110653481A - Water channel cover plate mounting structure and method - Google Patents
Water channel cover plate mounting structure and method Download PDFInfo
- Publication number
- CN110653481A CN110653481A CN201910981121.1A CN201910981121A CN110653481A CN 110653481 A CN110653481 A CN 110653481A CN 201910981121 A CN201910981121 A CN 201910981121A CN 110653481 A CN110653481 A CN 110653481A
- Authority
- CN
- China
- Prior art keywords
- cover plate
- water channel
- edge
- channel cover
- friction stir
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
- B23K20/1245—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding characterised by the apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
- B60K2001/005—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric storage means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention provides a water channel cover plate mounting structure and a water channel cover plate mounting method. The water channel cover plate is fixed on the shell in a friction stir welding mode, so that the connection firmness and stability between the water channel cover plate and the shell are effectively guaranteed, the pressure resistance of a connection part is guaranteed, the service life of the connection part is prolonged, and the purpose of enhancing the heat dissipation effect is achieved.
Description
Technical Field
The invention relates to the technical field of new energy automobiles, in particular to the technical field of sealing of a shell water channel of a new energy automobile.
Background
With the increasing development of new energy automobiles, the power supply power is larger and larger, and the requirement on heat dissipation is higher and higher, so that the pressure resistance, operability and service life of the water channel seal are required to be improved. At present, the similar sealing structures adopt a sealing ring and a screw to fix a water channel cover plate, and the sealing ring loses the sealing effect after being used for a long time; and the pressure resistance is low, the phenomenon of screw loosening or seal ring displacement can be generated when the pressure resistance is about 0.6MPa, the sealing performance is invalid, and the shell leaks water, so that water can be introduced only by adopting smaller pressure in the water channel, the heat dissipation effect is poor, and the requirement is difficult to meet.
Disclosure of Invention
The present invention is directed to solving the problems described above. It is an object of the present invention to provide a waterway cover plate installation structure and method that solves the above problems. Specifically, the invention provides a water channel cover plate mounting structure and a water channel cover plate mounting method capable of improving the pressure resistance, the service life and the heat dissipation effect of a water channel.
According to a first aspect of the invention, the invention provides a water channel cover plate mounting structure, which is used for a new energy automobile shell cooling water channel and comprises a water channel cover plate and a shell, wherein the edge of the water channel cover plate is fixedly connected with the edge of a supporting platform of the shell through friction stir welding.
The pressing amount between the edge of the water channel cover plate and the edge of the supporting table of the shell is 0.2-0.3 mm.
Wherein, the edge thickness of the supporting table is 0.8-1.2 mm.
Wherein, the width of the edge of the support table of the casing is 3.2-3.8 mm.
According to another aspect of the invention, the invention further provides a method for installing the water channel cover plate, wherein the edge of the water channel cover plate is fixed on the machine shell in a friction stir welding mode.
Wherein the friction stir welding comprises the following steps:
and arranging a plurality of positioning points along the edge of the water channel cover plate, and then carrying out friction stir welding along the anticlockwise direction by taking the predetermined positions as starting points.
In the friction stir welding mode, the diameter of a shaft shoulder of an adopted stirring head is 6-8 mm, the length of an adopted stirring needle is 2-2.4 mm, and the pressing-in amount of the water channel cover plate is 0.2-0.3 mm during welding.
Wherein the rotating speed of the stirring head is 1400-1600 r/min, and the inclination angle is 1.4-1.6 degrees.
Wherein in the friction stir welding mode, the welding speed is 220-280 mm/min.
The water channel cover plate is fixed on the shell in a friction stir welding mode, so that the connection firmness and stability between the water channel cover plate and the shell are effectively guaranteed, the pressure resistance of a connection part is guaranteed, the service life of the connection part is prolonged, and the purpose of enhancing the heat dissipation effect is achieved.
Other characteristic features and advantages of the invention will become apparent from the following description of exemplary embodiments, which is to be read in connection with the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention. In the drawings, like reference numerals are used to indicate like elements. The drawings in the following description are directed to some, but not all embodiments of the invention. For a person skilled in the art, other figures can be derived from these figures without inventive effort.
FIG. 1 schematically illustrates a waterway cover plate mounting structure of the present invention;
FIG. 2 schematically illustrates a structure of the stirring head;
fig. 3 is an enlarged view of a portion a of fig. 2.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
Because the friction stir welding in the prior art can only be applied to welding thicker materials, for example, to welding metal materials with the thickness of more than 5mm, the connection between the shell and the water channel, such as automobiles, made of thin materials can only adopt the traditional connection mode. The inventor has realized the friction stir welding between the ultra-thin metal material through designing dedicated stirring head and stirring pin, adopts friction stir welding's mode to carry out fixed connection with water course apron and casing, increases the compressive capacity and the life of junction to reach reinforcing radiating effect's effect.
The present invention provides a waterway cover plate installation structure and method, which are described in detail below with reference to the accompanying drawings.
Fig. 1 shows a schematic diagram of a water channel cover plate mounting structure of the invention, which is used for a new energy automobile casing cooling water channel, and comprises a water channel cover plate 1 and a casing 2, wherein the edge of the water channel cover plate 1 is fixedly connected with the edge of a support table 21 of the casing 2 by friction stir welding. The thickness of the water channel cover plate 1 and the thickness of the shell 2 are both thin, so that the traditional friction stir welding equipment and the traditional friction stir welding process are not suitable, and the inventor carries out special design on the equipment.
In the water channel cover plate mounting structure, the press-in amount between the edge of the water channel cover plate 1 and the edge of the support table 21 of the casing 2 is 0.2-0.3 mm.
Specifically, the thickness of the edge of the support table 21 of the housing 2 is 0.8-1.2 mm, and the width of the edge of the support table 21 is 3.2-3.8 mm. Illustratively, the thickness of the edge of the support platform 21 of the housing 2 is 1mm, and the width of the edge of the support platform 21 is 3.5 mm.
The invention also provides a water channel cover plate installation method which is suitable for the water channel cover plate installation structure and comprises the following steps: the edge of the water channel cover plate 1 is fixed on the shell 2 in a friction stir welding mode, so that the pressure resistance and the service life of the joint of the water channel cover plate 1 and the shell 2 can be effectively improved, and the effect of enhancing the heat dissipation effect is achieved.
In one exemplary embodiment, the friction stir welding mode includes the steps of:
a plurality of positioning points are arranged along the edge of the water channel cover plate 1, and the water channel cover plate 1 is preliminarily positioned so as to prevent the water channel cover plate from tilting due to deformation in the friction stir welding process to influence the installation effect and the structural stability; and then performing friction stir welding in a counterclockwise direction with a predetermined position as a starting point.
Specifically, positioning points are arranged at the corner positions of the edges of the water channel cover plate 1, the middle parts of the long straight edges and the like, so that the positioning effect and the installation effect of the water channel cover plate 1 are guaranteed. In a particular embodiment, the starting point of the welding may be provided at an edge corner position of the waterway cover plate 1.
Fig. 2 shows a schematic structural diagram of a stirring head used in friction stir welding of the present invention, in the friction stir welding of the present invention, a diameter of a shoulder 31 of the stirring head 3 is 6 to 8mm, a length of a stirring pin 32 is 2 to 2.4mm, and an amount of penetration of the water channel cover plate 1 during welding is 0.2 to 0.3 mm. In an exemplary embodiment, the head 3 is selected to have a shoulder 31 of 6.5mm or 7.5mm diameter and a pin 32 of 2.2mm length. In the stirring head 3 designed by the present invention, the root of the stirring pin 32 is recessed into the shoulder 31, and the recessed inclination angle of the end surface of the shoulder 31 is β, and β may be set to 4 ° to 6 °, for example, 5 °.
In the friction stir welding process, the rotating speed of the stirring head 3 is 1400-1600 r/min, the inclination angle is 1.4-1.6 degrees, and the welding speed is 220-280 mm/min. Illustratively, the rotational speed of the stirring head 3 is 1500r/min, the inclination angle is 1.5 degrees, the welding speed is 250mm/min, and the projection radius is 17.1 mm. The projection radius is a parameter in a system normal following function of the friction stir welding device 828D, the main purpose of the projection radius is to change a main shaft center of operation control to the stirring pin 32 of the stirring head 3 at a system control center, and when the arc track welding is adopted, dynamic compensation is carried out through X, Y two degrees of freedom, so that the welding inclination angle of the main shaft and the normal of the arc at any position is kept unchanged, and the welding stability is ensured.
The above-described aspects may be implemented individually or in various combinations, and such variations are within the scope of the present invention.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Finally, it should be noted that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. The water channel cover plate mounting structure is used for a new energy automobile shell cooling water channel and comprises a water channel cover plate (1) and a shell (2), and the edge of the water channel cover plate (1) is fixedly connected with the edge of a supporting table (21) of the shell (2) through friction stir welding.
2. The waterway cover plate mounting structure of claim 1, wherein the pressing amount between the edge of the waterway cover plate (1) and the edge of the support base (21) of the casing (2) is 0.2 to 0.3 mm.
3. The waterway cover plate mounting structure of claim 1, wherein the support platform (21) has an edge thickness of 0.8 to 1.2 mm.
4. The waterway cover plate mounting structure of claim 1, wherein the width of the edge of the support base (21) of the housing (2) is 3.2 to 3.8 mm.
5. The method for installing the water channel cover plate is characterized in that the edge of the water channel cover plate (1) is fixed on the machine shell (2) in a friction stir welding mode.
6. The waterway cover plate installation method of claim 5, wherein the friction stir welding comprises the steps of:
and arranging a plurality of positioning points along the edge of the water channel cover plate (1), and then carrying out friction stir welding along the anticlockwise direction by taking the predetermined positions as starting points.
7. The method for installing the waterway cover plate according to claim 5, wherein in the friction stir welding mode, the diameter of the shaft shoulder (31) of the stirring head (3) is 6-8 mm, the length of the stirring needle (32) is 2-2.4 mm, and the pressing amount of the waterway cover plate (1) during welding is 0.2-0.3 mm.
8. The method for installing the water channel cover plate according to claim 7, wherein the rotation speed of the stirring head (3) is 1400-1600 r/min, and the inclination angle is 1.4-1.6 °.
9. The method for installing the waterway cover plate of claim 5, wherein the friction stir welding is performed at a welding speed of 220 to 280 mm/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910981121.1A CN110653481A (en) | 2019-10-16 | 2019-10-16 | Water channel cover plate mounting structure and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910981121.1A CN110653481A (en) | 2019-10-16 | 2019-10-16 | Water channel cover plate mounting structure and method |
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| Publication Number | Publication Date |
|---|---|
| CN110653481A true CN110653481A (en) | 2020-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910981121.1A Pending CN110653481A (en) | 2019-10-16 | 2019-10-16 | Water channel cover plate mounting structure and method |
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| CN (1) | CN110653481A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0604886A2 (en) * | 1992-12-21 | 1994-07-06 | Stephan Vandaele | Electrically heated cooking vessel |
| JP2001313357A (en) * | 2000-04-27 | 2001-11-09 | Hitachi Ltd | Method for manufacturing heat sink plate, and heat sink structure |
| CN102672345A (en) * | 2012-05-29 | 2012-09-19 | 哈尔滨工业大学 | Welding set applicable for welding with pushing friction stir welding of thin plate and welding method thereof |
| CN105414737A (en) * | 2015-12-29 | 2016-03-23 | 哈尔滨工业大学 | Method for improving performance of sheet friction-stir welding head |
| CN106181268A (en) * | 2016-09-12 | 2016-12-07 | 广州市锐美汽车零部件有限公司 | A kind of new-energy automobile water-cooled motor case and friction welding technological thereof |
| CN106735971A (en) * | 2017-01-05 | 2017-05-31 | 中国电子科技集团公司第三十八研究所 | A kind of diffusion welding (DW) agitating friction weldering integrated welding method of aluminium alloy liquid cooled module |
| CN108723576A (en) * | 2018-05-25 | 2018-11-02 | 合肥工业大学 | A kind of processing method of aluminium alloy microwave liquid cooled module |
-
2019
- 2019-10-16 CN CN201910981121.1A patent/CN110653481A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0604886A2 (en) * | 1992-12-21 | 1994-07-06 | Stephan Vandaele | Electrically heated cooking vessel |
| JP2001313357A (en) * | 2000-04-27 | 2001-11-09 | Hitachi Ltd | Method for manufacturing heat sink plate, and heat sink structure |
| CN102672345A (en) * | 2012-05-29 | 2012-09-19 | 哈尔滨工业大学 | Welding set applicable for welding with pushing friction stir welding of thin plate and welding method thereof |
| CN105414737A (en) * | 2015-12-29 | 2016-03-23 | 哈尔滨工业大学 | Method for improving performance of sheet friction-stir welding head |
| CN106181268A (en) * | 2016-09-12 | 2016-12-07 | 广州市锐美汽车零部件有限公司 | A kind of new-energy automobile water-cooled motor case and friction welding technological thereof |
| CN106735971A (en) * | 2017-01-05 | 2017-05-31 | 中国电子科技集团公司第三十八研究所 | A kind of diffusion welding (DW) agitating friction weldering integrated welding method of aluminium alloy liquid cooled module |
| CN108723576A (en) * | 2018-05-25 | 2018-11-02 | 合肥工业大学 | A kind of processing method of aluminium alloy microwave liquid cooled module |
Non-Patent Citations (3)
| Title |
|---|
| 廖健，等: "《铝合金挤压材生产与应用》", 31 March 2018, 冶金工业出版社 * |
| 张柯柯等: "《特种先进连接方法第3版》", 31 August 2016, 哈尔滨工程大学出版社 * |
| 林忠钦: "《民用飞机构件先进成形技术》", 31 December 2016, 上海交通大学出版社 * |
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Application publication date: 20200107 |
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