Technical field
The present application relates to the field of transmission heat transfer technology, specifically relates to a heat exchanger tube assembly for a gearbox, and further relates to a gearbox assembly and a vehicle comprising the gearbox assembly.
Background technology
In order to improve fuel economy, the current automatic transmission for cars generally uses heat exchangers for transmission oil temperature control to keep the oil temperature in a reasonable range. The oil pipe used for heat transfer in the gearbox usually uses steel pipe with a composite coating, the purpose of which is to prevent corrosion of the steel pipe. However, during the use of the vehicle, due to the exposure of the oil pipe to the front compartment environment, the composite coating will cause coating damage under the collision of foreign matter such as sand and gravel, and in the subsequent use of the vehicle, the coating damage point gradually expands, which can easily lead to corrosion or even rust penetration of the steel pipe inside the coating. In addition, in the process of durability verification of new models, with the increasing requirements for vehicle corrosion resistance, coated steel pipes cannot cope with the test of full life, and steel pipe corrosion problems will occur in the later stage of vehicle durability tests.
Utility model content
The present application is intended to provide a heat exchanger tube assembly, a gearbox assembly, and a vehicle to address or alleviate at least part of the problems mentioned in the background technology.
In order to achieve one of the foregoing purposes, according to one aspect of the present application, a heat exchanger tube assembly is provided for a gearbox, the heat exchanger tube assembly comprising: a tube body, which communicates with the gearbox fluid; and pressure plates; the end of the tube body passes through the pressure plate and is inserted into the gearbox and fixed and installed to the gearbox by the pressure plate; And, the tube body is made of aluminum alloy.
In addition to one or more of the above features, or as an alternative, in a further embodiment, the end of the tube body has a radially convex tube flange, the tube flange is against the pressure plate and the gearbox.
In addition to one or more of the above features, or as an alternative, in a further embodiment, the heat exchanger tube assembly further comprises a sealing gasket sleeved on the end of the tube body and disposed between the tube flange and the gearbox.
In addition to one or more of the above features, or as an alternative, in another embodiment, the pressure plate comprises a connecting portion and a mounting portion, the connecting portion is constructed with a through hole and is set on the end of the tube body through the through hole, and the connecting portion is against the side of the pipe flange that deviates from the gearbox.
In addition to one or more of the above features, or as an alternative, in a separate embodiment, the mounting portion is attached to the gearbox and fixed to the gearbox by fasteners.
In addition to one or more of the above features, or as an alternative, in a further embodiment, the mounting portion is provided with threaded through holes, and the mounting portion is mounted to the gearbox by bolting through the threaded through holes.
In addition to one or more of the above features, or as an alternative, in another embodiment, the connecting portion is recessed from the mounting portion against the gearbox, along the extension direction of the end of the tube body, to form a groove on the side of the pressure plate facing the gearbox, and the tube flange is accommodated in the groove.
In addition to one or more of the above features, or as an alternative, in another embodiment, the recessed distance of the connecting portion is less than or equal to the total thickness of the tube flange and the sealing gasket along the extension direction of the end of the tube body.
In order to achieve one of the foregoing purposes, according to another aspect of the present application, a gearbox assembly is provided, the gearbox assembly comprises a gearbox and any of the aforementioned heat exchanger tube assemblies, the heat exchanger assembly is connected to the gearbox fluid.
To achieve one of the foregoing purposes, the present application also provides a vehicle, the vehicle comprises the gearbox assembly described in the foregoing aspects.
According to the heat exchanger tube assembly, gearbox assembly and vehicle of the present application, the corrosion resistance of the heat exchanger tube assembly is significantly improved by using the aluminum alloy tube body, the corrosion and failure caused by the damage of the traditional steel pipe due to the anti-corrosion coating are avoided, and the durability of the heat exchanger tube assembly is improved. Moreover, the stable connection between the tube body and the gearbox is ensured through the pressure plate connection, and the adaptability of the heat exchanger tube assembly to various complex working conditions is improved.
Description of the drawings
Referring to the drawings, the disclosure of this application will be easier to understand. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present application. In the picture:
FIG 1 shows a schematic diagram of a heat exchanger tube assembly according to one embodiment of the present application; and
FIG 2 shows a cross-sectional view of one end of the heat exchanger tube assembly shown in FIG. 1.
Specific embodiment
The present application will be described in detail hereinafter with reference to exemplary embodiments in the accompanying drawings. However, it should be understood that the present application may be implemented in a plurality of different forms and should not be understood as being limited to the embodiments described herein. These embodiments are provided herein to make the disclosure of the present application more complete and clear, and the idea of the present application is completely transmitted to those skilled in the art.
Further, for any single technical feature described or implied in the embodiments referred to herein, or any single technical feature shown or implied in the drawings, those skilled in the art are likely to think of continuing to appropriate combination or derogation between these technical features (or their equivalents), thereby obtaining more other embodiments of the present application that may not be directly mentioned herein, which do not depart from the scope of technical thought of the present application.
FIG 1 shows a schematic diagram of a heat exchanger tube assembly 10 according to one embodiment of the present application. The heat exchanger tube assembly 10 comprises: a tube body 100 communicating with the gearbox fluid and two pressure plates 200 sleeved at both ends 110 of the tube body 100. The end 110 of the tube body 100 passes through the pressure plate 200 and is inserted into the gearbox and fixed to the gearbox by the pressure plate 200, thereby realizing the flow of oil in the gearbox. The heat exchanger tube assembly 10 will be heated or cooled by the transmission heat exchanger transmission oil into the gearbox, thereby ensuring that the transmission oil temperature is maintained within the normal range, so that the gearbox can operate normally. The tube body 100 is made of aluminum alloy, such as the grade 3103-H14 aluminum alloy pipe, which is a single metal material, the corrosion resistance is greatly improved compared to the steel pipe, and does not need to use additional anti-corrosion composite coating, simple structure, low manufacturing cost.
Under this arrangement, the heat exchanger tube assembly described in this paper significantly improves the corrosion resistance of the heat exchanger tube assembly through the aluminum alloy tube body, avoids the corrosion and failure of the heat exchanger tube assembly caused by the damage of the anti-corrosion coating, improves the durability of the heat exchanger tube assembly, and then ensures its effectiveness in the actual operation of the vehicle, and is conducive to the effective performance of the vehicle durability test. Moreover, the stable connection between the tube body and the gearbox is ensured through the pressure plate connection, and the adaptability of the heat exchanger tube assembly to various complex working conditions is improved.
The following will introduce the further specific implementation or refinement and improvement process of the heat exchanger tube assembly through exemplary explanations in order to further improve its work efficiency, reliability or other improvement considerations.
A cross-sectional view of one end 110 of the heat exchanger tube assembly 10 shown in FIG. 2 is shown in FIG. 1. It can be seen that the pressure plate 200 includes a connection portion 210 and an installation portion 220, the connection portion 210 is constructed with a through hole and is provided on the end 110 of the pipe body 100 through a through hole. The end 110 of the tube body 100 has a radially convex tube flange 111 (which may be formed by a cold heading forming process), the tube flange 111 is against the connection portion 210 of the pressure plate 200 and the gearbox (not shown), so that the pressure plate 200 may press the tube flange 111 to the gearbox, preventing the displacement of the tube body 100. Between the pipe flange 111 and the gearbox, a sealing gasket 300 is also provided on the end 110 of the tube body 100 to seal the high-pressure oil to prevent transmission oil leakage.
Also as shown in FIG. 2, in a more specific embodiment, the connection portion 210 from the mounting portion 220 and the gearbox against the retreat surface, along the extension direction of the end of the tube body 100 110 divergence from the gearbox recess, to form a groove 211 on the side of the pressure plate 200 towards the gearbox, the tube flange 111 is accommodated in the groove 211, and the recess distance of the connection portion 210 is less than or equal to the tube flange 111 and the sealing gasket 300 along the extension direction of the end 110 of the tube body 100 ( i.e., the total thickness of the left and right directions in FIG. 2), so that the connecting portion 210 may be the sealing gasket 300 pressed between the tube flange 111 and the gearbox to ensure its sealing effect.
Further, returning to the stereoscopic view shown in FIG. 1, it can be seen that the mounting portion 220 is constructed with a threaded through hole 221, the mounting portion 220 may be attached to the gearbox, and mounted to the gearbox by a bolt through the threaded through hole 221. In other embodiments, the mounting portion 220 may also be constructed with other fastening structures and fixed to the gearbox by other fasteners compatible with the fastening structure.
By pressing the connecting portion 210 to the pipe flange 111 and tightening the installation portion 220 to the gearbox, the fixed installation of the tube body 100 to the gearbox can be realized, thereby ensuring that under various complex working conditions, the tube body 100 is always maintained in a fixed position.
In this arrangement, the corrosion resistance of the heat exchanger tube assembly 10 is effectively improved according to the present application, thereby improving its durability and extending its service life, thereby significantly reducing the cost of the gearbox assembly comprising the heat exchanger tube assembly 10 and the vehicle; And by setting the pressure plate 200 and the sealing gasket 300 can further ensure the stability and sealing of the heat exchanger tube assembly 10, thereby significantly improving the heat exchange effect of the heat exchanger tube assembly 10 and improving the work efficiency of the gearbox assembly.
The above examples mainly illustrate the heat exchanger tube assembly, gearbox assembly and vehicle of the present application. Although only some of these embodiments of the present application are described, those of ordinary skill in the art should understand that the present application may be implemented in many other forms without deviating from its subject matter and scope. Therefore, the examples and embodiments shown are considered illustrative rather than restrictive, and without departing from the spirit and scope of the technical solution of the present application, the present application may cover various modifications and replacements.
Heat exchange tube assembly, gearbox assembly and vehicle
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