Novel welding cooling water pipe for heat management of new energy automobile
By using laser welding machines in the thermal management cooling water pipe of new energy vehicles to achieve sealing connection between the joints and the flow diversion pipeline, the problems of excessive performance requirements and increased complexity of the sealing layer in the prior art are solved, and processing efficiency and docking convenience are improved.
Patent Information
- Application Number
- CN202420884228.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-04-25
AI Technical Summary
The existing thermal management cooling pipelines of new energy vehicles have problems with excess performance requirements in the application of new energy vehicles. In the processing and production process, sealing layers need to be added to the diversion pipeline port, resulting in cumbersome processing operations and affecting batch processing efficiency.
A new type of welded cooling water pipe is designed, using quick plug joints, joints and flow diversion pipelines. The sealing connection between the joints and flow diversion pipelines is achieved through a laser welding machine, avoiding the sealing layer requirements on the outer side walls of the flow diversion pipelines.
It realizes efficient sealing connection between the joint and the flow guide pipeline, simplifies processing steps, improves batch processing efficiency, and improves the convenience and stability of docking through arc-shaped guide slopes.
Smart Images
Figure CN222687610U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of thermal management of new energy vehicles, in particular to a novel welded cooling water pipe for thermal management of new energy vehicles. Background Art
[0002] At present, the thermal management cooling pipeline of new energy vehicles still follows the technical route of traditional vehicles. Due to the existence of the engine, the application environment of the pipeline for cooling the engine is relatively harsh, such as high temperature and pressure. The materials of the cooling pipeline and joints of traditional vehicles are generally rubber and nylon, and the connection between the pipeline and the joint is connected by a metal clamp. With the development of new energy vehicles and the widespread use of power batteries, the requirements for cooling pipelines have also been greatly reduced, and the temperature and pressure resistance requirements of materials have been reduced. Then, after the requirements for the cooling system are reduced, the materials and accessories used in the prior art will have some excess requirements in terms of performance. The applicant previously applied for a welding cooling water pipe for thermal management of new energy vehicles (application number: 2024207081831), which effectively solved the problem of excess performance requirements for the direct application of cooling pipelines in new energy vehicles using the above-mentioned traditional vehicles. However, the applicant found in the actual processing and production process that due to the technical solution of the above-mentioned application, there is a problem that a sealing layer must be added to the port of the guide pipeline. The sealing layer is added at the end of the guide pipeline, which makes the processing operation of the cooling pipe too cumbersome, which is not conducive to improving the batch processing efficiency of the cooling water pipe. Utility Model Content
[0003] The purpose of the utility model is to provide a new type of welded cooling water pipe for thermal management of new energy vehicles. In the cooling water pipe, the sealed connection between the joint and the guide pipeline does not require additional sealing components. After docking, a laser welding machine is directly used for sealing welding, and the processing efficiency is high.
[0004] The technical solution adopted by the utility model to solve its technical problems is: a new type of welded cooling water pipe for thermal management of new energy vehicles, including a quick-plug connector, a butt connector, and a guide pipe, the quick-plug connector and the guide pipe are both made of TPV opaque material, the butt connector is made of PP translucent material, a braided layer is arranged in the pipe wall of the guide pipe, a first butt connection of the quick-plug connector is sleeved on the inner side of a first butt end of the butt connector, the other second butt end of the butt connector is sleeved in a third butt end of the guide pipe, the outer side wall of the first butt connection and the inner side wall of the first butt end are sealed and fixedly connected by laser welding, and the outer side wall of the second butt end and the inner side wall of the third butt end are fixedly connected by laser welding.
[0005] Preferably, a reinforcing annular wall is provided on the outer side of the second butt joint end, a guiding inserting groove is provided between the reinforcing annular wall and the second butt joint end, and the third butt joint end is sleeved in the guiding inserting groove.
[0006] Furthermore, the outer side wall of the third butt joint end is in contact with the inner side wall of the reinforced annular wall.
[0007] Furthermore, an arc-shaped guide slope is provided on the outer edge of the first docking port, the inner edge of the first docking end, the outer edge of the second docking end and the inner edge of the reinforced annular wall.
[0008] The beneficial effects of the utility model are as follows: the utility model has a simple structure and is easy to manufacture; when the butt joint is connected to the guide pipe, a laser welding machine is used to melt-weld the inner wall of the guide pipe and the outer wall of the second butt end of the butt joint, thereby effectively blocking the flowing liquid from entering the braided layer of the guide pipe, and then there is no need to add a sealing layer to seal the outer wall of the guide pipe, simplifying the processing steps of the guide pipe; the laser welding machine can be used to achieve rapid welding and sealing between the quick-insert joint and the butt joint, and between the butt joint and the guide pipe, thereby improving the processing efficiency of the utility model. By using the arc-shaped guide slope provided on the first butt joint, the first butt end, the second butt end and the reinforced annular wall, the effective and rapid docking of the quick-insert joint, the butt joint and the guide pipe can be improved, thereby facilitating the improvement of the docking efficiency of the three. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some preferred embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0011] Figure 2 It is a partial longitudinal sectional view of the overall structure of the utility model;
[0012] Figure 3 for Figure 1 Enlarged view of point A in the middle;
[0013] In the figure: 1 quick-insert connector, 11 first pair of interfaces, 2 pair of connectors, 21 first butt end, 22 second butt end, 221 reinforced annular wall, 3 guide pipeline, 31 third butt end, 32 braided layer, 4 first welding fusion connection layer, 5 second welding fusion connection layer, 101 arc-shaped guide slope. DETAILED DESCRIPTION
[0014] The following will be combined with specific embodiments and attached Figure 1-3 , the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the preferred embodiments of the utility model, not all of the embodiments. Those skilled in the art can make similar modifications without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.
[0015] The technical principle of laser welding of plastic materials is: the laser beam penetrates the upper transmissive component and irradiates the lower plastic component that absorbs the laser. The laser energy is absorbed by the dye or additive particles in the absorbing component and converted into heat, melting the absorbing component. Through heat conduction, the heat is transferred to the upper transmissive component to achieve the melting of the upper component. The joints between the absorbing component and the upper component are melted, thereby achieving fusion welding of the absorbing component and the upper component.
[0016] The utility model provides a new type of welded cooling water pipe for thermal management of new energy vehicles (such as Figure 1As shown), it includes a quick-insert connector 1, a butt connector 2, and a guide pipe 3. The quick-insert connector 1 and the guide pipe 3 are both made of TPV opaque material, the butt connector 2 is made of PP translucent material, a braided layer 32 is arranged in the pipe wall of the guide pipe 3, and the braided layer 32 can provide the guide pipe 3 with pressure resistance. A first butt connector 11 of the quick-insert connector 1 is sleeved on the inner side of a first butt end 21 of the butt connector 2, and another second butt end 22 of the butt connector 2 is sleeved in a third butt end 31 of the guide pipe 3. The outer side wall of the first butt connector 11 and the inner side wall of the first butt end 21 are sealed and fixedly connected by laser welding. Specifically, when the first butt connector 11 is sleeved in the first butt end 21, a laser welding machine is used to perform laser welding on the outside of the first butt end 21, so that an annular first weld is formed between the outer side wall of the first butt connector 11 and the inner side wall of the first butt end 21. The first welding molten connection layer 4 is connected. When the first welding molten connection layer 4 is cooled and solidified, the fixed sealing connection between the first docking interface 11 and the first docking end 21 is realized; the outer wall of the second docking end 22 and the inner wall of the third docking end 31 are fixedly connected by laser welding. Specifically, after the second docking end 22 is inserted into the third docking end 31, a laser welding machine is used to laser weld the second docking end 22 and the third docking end 31 from the inside of the second docking end 22. A second welding molten connection layer 5 is formed between the outer wall of the second docking end 22 and the inner wall of the third docking end 31. When the second welding molten connection layer 5 is cooled and solidified, the fixed sealing welding between the second docking end 22 and the third docking end 31 is realized. The sealing effect of the second welding molten connection layer 5 can effectively prevent liquid from entering the braided layer 32 from the end surface of the third docking end 31, thereby realizing the waterproof effect of the braided layer 32. In the actual laser welding process, the laser beam can generate a high temperature of 100°C to 250°C at the joint between the outer wall of the first docking interface 11 and the inner wall of the first docking end 21 and between the outer wall of the second docking end 22 and the inner wall of the third docking end 31, thereby melting the bonding materials at the above-mentioned welding points. After the molten material solidifies, a sealed and fixed connection is achieved.
[0017] The existing guide pipe is made of EPDM plus a braided layer. The guide pipe 2 in the utility model is made of TPV plus a braided layer. The density of EPDM material is 1.2g / cm 3 , while the density of TPV material is 0.96g / cm 3 As a result, the guide pipe made of TPV material is 20% lighter than the guide pipe made of EPDM material under the same volume.
[0018] On the basis of the above embodiment, in order to improve the connection stability between the guide pipe 3 and the docking head 2, a reinforcing annular wall 221 is provided on the outer side of the second docking end 22, and a guide plug-in groove is provided between the reinforcing annular wall 221 and the second docking end 221, and the third docking end 31 is inserted into the guide plug-in groove, and the outer wall of the third docking end 31 is in contact with the inner wall of the guide plug-in groove.
[0019] In the actual processing of the cooling water pipe, in order to improve the docking convenience among the quick-connect connector 1, the butt connector 2 and the guide pipe 3, an arc-shaped guide slope 101 is provided on the outer edge of the first docking port 11, the inner edge of the first docking end 21, the outer edge of the second docking end 22 and the inner edge of the reinforced annular wall 221. The arc-shaped guide slope 101 has a guiding function, which can effectively reduce the position placement accuracy requirements of the quick-connect connector 1, the butt connector 2 and the guide pipe 3 during the initial docking, thereby facilitating the improvement of the docking convenience among the quick-connect connector 1, the butt connector 2 and the guide pipe 3.
[0020] In the present utility model, "upper", "lower", "front", "back", "left" and "right" are relative positions used to conveniently describe positional relationships, and therefore cannot be understood as absolute positions to limit the scope of protection.
[0021] Except for the technical features described in the specification, all other technical features are known technologies to those skilled in the art.
[0022] The above description in combination with the accompanying drawings has detailed the preferred implementation modes and embodiments of the utility model, but the utility model is not limited to the above implementation modes and embodiments. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the concept of the utility model, and these improvements and modifications should also be regarded as the protection scope of the utility model.
Claims
1. A new type of welded cooling water pipe for thermal management of new energy vehicles, characterized in that: It includes a quick-plug connector, a butt connector, and a guide pipe. The quick-plug connector and the guide pipe are both made of TPV opaque material, the butt connector is made of PP translucent material, a braided layer is arranged in the pipe wall of the guide pipe, a first butt connector of the quick-plug connector is sleeved on the inner side of a first butt connector end of the butt connector, and the other second butt connector end of the butt connector is sleeved in a third butt connector end of the guide pipe, the outer side wall of the first butt connector and the inner side wall of the first butt connector are sealed and fixedly connected by laser welding, and the outer side wall of the second butt connector and the inner side wall of the third butt connector are fixedly connected by laser welding.
2. According to claim 1, a new type of welded cooling water pipe for thermal management of new energy vehicles is characterized in that A reinforcing annular wall is arranged on the outer side of the second butt joint end, a guiding inserting groove is arranged between the reinforcing annular wall and the second butt joint end, and the third butt joint end is sleeved in the guiding inserting groove.
3. According to claim 2, a new type of welded cooling water pipe for thermal management of new energy vehicles is characterized in that: The outer side wall of the third butt joint end is in contact with the inner side wall of the reinforced annular wall.
4. According to claim 3, a new type of welded cooling water pipe for thermal management of new energy vehicles is characterized in that An arc-shaped guiding slope is arranged on the outer edge of the first butt joint, the inner edge of the first butt joint end, the outer edge of the second butt joint end and the inner edge of the reinforced annular wall.