New energy automobile cooling water pipe

By combining the connection design of nylon corrugated pipe and straight pipe with connecting sleeve and sealing structure, the problems of heavy weight and unstable connection of cooling water pipes in new energy vehicles are solved, achieving lightweighting and improved sealing.

CN223708931UActive Publication Date: 2025-12-23LINHAI IRON HORSE TUBES CO LTD
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Patent Information

Application Number
CN202520444764.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2025-12-23
Estimated Expiration
2035-03-13

AI Technical Summary

Technical Problem

Existing cooling water pipes for new energy vehicles are too heavy, making it difficult to meet the requirements for lightweighting, and the connections are prone to loosening and liquid leakage.

Method used

The system uses nylon corrugated pipes and nylon straight pipes for connection, and connects them through connecting sleeves and threads. Combined with the design of plug blocks and sealing rings, it forms a labyrinth sealing structure, which enhances connection stability and sealing.

Benefits of technology

This technology achieves lightweighting of cooling water pipes, reducing weight by approximately 60%, improving connection stability and sealing, preventing liquid leakage, and extending service life.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223708931U_ABST
    Figure CN223708931U_ABST
Patent Text Reader

Abstract

The utility model relates to a new energy automobile cooling water pipe which comprises a cooling pipe body and two connectors, the cooling pipe body comprises a plurality of nylon corrugated pipes and a plurality of connecting sleeves, and nylon straight pipes are arranged at the two ends of the nylon corrugated pipes correspondingly; the two ends of each connecting sleeve are detachably connected to the nylon straight pipes of every two adjacent nylon corrugated pipes respectively, and the two connectors are detachably connected to the two nylon straight pipes located at the two ends of the cooling pipe body respectively. According to the automobile cooling pipe, the nylon corrugated pipes are connected with the nylon straight pipes, and the nylon straight pipes on the two nylon corrugated pipes are connected through the connecting sleeve, so that the cooling pipe main body can be spliced, bent and attached according to different positions of an automobile, and the cooling pipe main body can be suitable for more positions; and the nylon corrugated pipe and the nylon straight pipe are made of nylon, so that the overall weight of the cooling water pipe of the new energy vehicle is reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to cooling water pipe technical field especially relates to a new energy automobile cooling water pipe. BACKGROUND

[0002] With the development of automobile industry, exhaust emission is bringing increasingly serious environmental pollution. Energy and environment are becoming two decisive factors affecting the development of world automobile industry. In order to reduce the consumption of energy and reduce environmental pollution, our country lists new energy automobile as one of the emerging industries and focuses on cultivation. As an important part of new energy automobile, cooling water pipe is used to transfer cooling liquid to cool motor or fuel cell, whether in battery pack or outside battery pack. Therefore, developing new energy cooling water pipe has good market prospect.

[0003] Most of the existing technology focuses on EPDM rubber pipe as cooling pipe. The temperature resistance requirement of cooling water pipe of pure electric motor is generally not more than 100 DEG C. Since pure electric vehicle mainly uses electric energy to drive motor and then drive automobile, under the premise of ensuring automobile strength and safety performance, the lighter the weight of vehicle body, the lower the energy consumption. Therefore, traditional EPDM rubber pipe can not be used as cooling pipe to reduce the overall weight of new energy vehicle cooling water pipe. SUMMARY

[0004] In order to reduce the overall weight of new energy vehicle cooling water pipe, the application provides a new energy vehicle cooling water pipe.

[0005] The application provides a new energy vehicle cooling water pipe adopting the following technical scheme:

[0006] A new energy automobile cooling water pipe, comprising a cooling pipe main body and two joints, the cooling pipe main body comprises a plurality of nylon corrugated pipes and a plurality of connecting sleeves, both ends of each of the plurality of nylon corrugated pipes are respectively provided with a nylon straight pipe, both ends of each of the plurality of connecting sleeves are respectively detachably connected to the nylon straight pipes of two adjacent nylon corrugated pipes, and the two joints are respectively detachably connected to the nylon straight pipes at both ends of the cooling pipe main body.

[0007] By adopting the above technical scheme, the cooling pipe main body can be spliced, bent and fitted according to different positions of automobile through the connection between the nylon corrugated pipe and the nylon straight pipe and the connection of the nylon straight pipes on the two nylon corrugated pipes through the connecting sleeve, so that the cooling pipe main body can be applied to more positions. Moreover, the nylon corrugated pipe and the nylon straight pipe are made of nylon material, the density of nylon water pipe is 1.02*10³ kg / m³, and the density of EPDM is 1.2*10³ kg / m³. Therefore, the nylon pipe material of the same length can be reduced by about 60% to reduce the overall weight of new energy vehicle cooling water pipe.

[0008] Preferably, a first internal thread is formed on the inner wall of the connecting sleeve, an external thread is formed on the outer wall of the nylon straight pipe and can be threadedly connected with the first internal thread, and an abutting block is threadedly connected to the nylon straight pipe, and when the connecting sleeve is threadedly connected with the nylon straight pipe, the abutting block is moved to abut on the two sides of the connecting sleeve in the axial direction.

[0009] By adopting the above technical scheme, that is, by forming the first internal thread and the external thread, the nylon straight pipes on the two nylon corrugated pipes are simultaneously threadedly connected to the connecting sleeve to complete the connection of the two nylon corrugated pipes, and the position of the connecting sleeve on the two nylon straight pipes is limited by abutting the abutting block on the connecting sleeve, thereby reducing the possibility of loosening and falling off of the connecting sleeve caused by the vibration of the vehicle body.

[0010] Preferably, a first sealing ring is arranged on the side of the abutting block away from the corresponding nylon corrugated pipe, and when the abutting block is moved to abut on the connecting sleeve, the first sealing ring simultaneously abuts on the side of the connecting sleeve in the axial direction.

[0011] By adopting the above technical scheme, the connecting sleeve and the nylon water pipe are sealed by arranging the first sealing ring on the abutting block, the connecting sleeve and the nylon water pipe are threadedly connected, and the first sealing ring is abutted, thereby reducing the possibility of liquid overflowing from the connection between the connecting sleeve and the nylon water pipe.

[0012] Preferably, the nylon straight pipes at the two ends of the nylon corrugated pipe are respectively fixedly connected with plug-in blocks or are respectively provided with plug-in grooves which can be plug-in matched with the plug-in blocks, and when the two nylon corrugated pipes are connected, the plug-in blocks and the plug-in grooves are plug-in matched.

[0013] By adopting the above technical scheme, the plug-in matching between the plug-in grooves and the plug-in blocks facilitates the butt joint of the nylon straight pipes of the two nylon corrugated pipes, and at the same time, the effect of labyrinth sealing is achieved, thereby reducing the possibility of liquid overflowing from the gap between the two nylon straight pipes.

[0014] Preferably, the connecting sleeve is hollow.

[0015] By adopting the above technical scheme, the weight of the connecting sleeve is reduced, thereby reducing the overall weight of the cooling water pipe of the new energy vehicle.

[0016] Preferably, one end of the connector is provided with a second internal thread which can be threadedly connected with the external thread.

[0017] By adopting the above technical scheme, the second internal thread on the connector can be threadedly connected to the external thread of the nylon straight pipe.

[0018] Preferably, the nylon bellows comprises, from inside to outside, a corrosion-resistant layer, a reinforcing layer and a wear-resistant layer, and the corrosion-resistant layer, the reinforcing layer and the wear-resistant layer are successively adhered, the corrosion-resistant layer and the wear-resistant layer are made of different nylon materials, and the reinforcing layer is made of carbon fiber material.

[0019] By adopting the technical scheme, the inner and outer layers of the nylon bellows are made of nylon material, the middle layer is made of reinforcing material, the inner nylon layer provides a smooth inner surface to reduce fluid resistance, the middle reinforcing layer improves the strength and pressure resistance of the water pipe, and the outer nylon layer provides corrosion resistance and wear resistance, so that the cooling pipe body has high pressure resistance during use, can withstand high pressure, is suitable for high-pressure fluid conveying, has good tensile resistance and can prevent the water pipe from being broken due to stretching during use, and has strong corrosion resistance and can resist the corrosion of various chemicals to prolong the service life.

[0020] The technical effects of the utility model mainly lie in the following aspects:

[0021] 1. The utility model discloses a nylon straight pipe and a nylon bellows, which are connected between the nylon bellows and the nylon straight pipe, and the nylon straight pipes on the two nylon bellows are connected through the connecting sleeve, so that the cooling pipe body can be spliced, bent and attached according to different positions of the automobile, and the cooling pipe body can be applied to more positions. In addition, the nylon bellows and the nylon straight pipe are made of nylon material, the density of the nylon water pipe is 1.02*10³ kg / m³, the density of EPDM is 1.2*10³ kg / m³, and the nylon water pipe is lighter than the EPDM water pipe under the same volume. Therefore, the nylon pipe material of the same length can be reduced by about 60% to reduce the overall weight of the new energy vehicle cooling water pipe.

[0022] 2. The utility model discloses a connecting sleeve and an abutting block, which are connected through the first internal thread and the external thread, so that the nylon straight pipes on the two nylon bellows are simultaneously threadedly connected to the connecting sleeve to complete the connection of the two nylon bellows. In addition, the abutting block is abutted to the connecting sleeve to limit the position of the connecting sleeve on the two nylon straight pipes and reduce the possibility of loosening and falling out of the connecting sleeve caused by the vibration of the vehicle body.

[0023] 3. The utility model discloses a plug-in block and a plug-in slot, which are plugged and matched between the plug-in slot and the plug-in block to facilitate the butt joint of the nylon straight pipes of the two nylon bellows and achieve the effect of labyrinth sealing to reduce the possibility of liquid overflow from the gap between the two nylon straight pipes. ACCURACY OF DRAWINGS

[0024] Figure 1 It is a whole structure schematic diagram of the embodiment of the application.

[0025] Figure 2 It is a whole structure split diagram of the embodiment of the application.

[0026] Figure 3 is a schematic view of a connecting sleeve structure according to an embodiment of the present application.

[0027] Figure 4 is an enlarged view of A in Figure 3

[0028] Figure 5 is a schematic view of a nylon straight pipe structure according to an embodiment of the present application.

[0029] Figure 6 is a schematic view of a nylon corrugated pipe structure according to an embodiment of the present application.

[0030] Figure 7 is an enlarged view of B in Figure 6

[0031] DETAILED DESCRIPTION

[0032] The following will be described in detail in combination with the accompanying drawings. Figures 1-7 The present application will be further described in detail to make the technical solution of the present application easier to understand and master.

[0033] The present application discloses a new energy vehicle cooling water pipe.

[0034] With reference to Figure 1 , Figure 6 and Figure 7 , the new energy vehicle cooling water pipe according to the present embodiment comprises a cooling pipe body 1 and two connectors 2. The cooling pipe body 1 comprises a plurality of nylon corrugated pipes 11 and a plurality of connecting sleeves 13. The two ends of each of the nylon corrugated pipes 11 in the axial direction are coaxially and fixedly connected with a nylon straight pipe 12. The two ends of each of the connecting sleeves 13 are detachably connected with the nylon straight pipes 12 of two adjacent nylon corrugated pipes 11. The connecting sleeves 13 are hollow to reduce the overall weight of the cooling water pipe. The two connectors 2 are detachably connected with the two nylon straight pipes 12 at the two ends of the cooling pipe body 1. The nylon corrugated pipe 11 comprises, from inside to outside, a corrosion-resistant layer 111, a reinforcing layer 112 and a wear-resistant layer 113. The corrosion-resistant layer, the reinforcing layer 112 and the wear-resistant layer 113 are sequentially adhered. The corrosion-resistant layer 111 and the wear-resistant layer 113 are made of different nylon materials. The reinforcing layer 112 is made of carbon fiber material.

[0035] With reference to Figure 1 , Figure 6 and Figure 7 ​​​The cooling pipe body 1 can be spliced and bent to fit different positions of the automobile through the connection between the nylon corrugated pipe 11 and the nylon straight pipe 12, and the connection of the nylon straight pipes 12 on the two nylon corrugated pipes 11 through the connecting sleeve 13, so that the cooling pipe body can be applied to more positions. Moreover, the nylon corrugated pipe 11 and the nylon straight pipe 12 are made of nylon material, the density of the nylon water pipe is 1.02×10³ kg / m³, and the density of EPDM is 1.2×10³ kg / m³. Therefore, the same length of nylon pipe material can be reduced by about 60% to reduce the overall weight of the new energy vehicle cooling water pipe.

[0036] With reference to Figure 1 , Figure 6 and Figure 7 , the inner and outer layers of the nylon corrugated pipe 11 are made of nylon material, and the middle layer is made of reinforcing material. The inner layer of nylon provides a smooth inner surface to reduce fluid resistance. The middle reinforcing layer 112 improves the strength and pressure resistance of the water pipe. The outer layer of nylon provides corrosion resistance and wear resistance, so that the cooling pipe body 1 has high pressure resistance during use and can withstand high pressure, suitable for high-pressure fluid transportation. It has good tensile resistance and can prevent the water pipe from breaking due to stretching during use. It has strong corrosion resistance and can resist the corrosion of various chemicals to prolong the service life.

[0037] With reference to Figure 2 and Figure 3 , the inner wall of the connecting sleeve 13 is provided with a first inner thread 131, and the outer wall of the nylon straight pipe 12 is provided with an outer thread 121 which can be threadedly connected with the first inner thread 131. A plurality of nylon straight pipes 12 are respectively threadedly connected with abutting blocks 14. When the connecting sleeve 13 is threadedly connected with the nylon straight pipe 12, the abutting blocks 14 are moved to abut on the two side surfaces of the connecting sleeve 13 in the axial direction. That is, by providing the first inner thread 131 and the outer thread 121, the nylon straight pipes 12 on the two nylon corrugated pipes 11 are simultaneously threadedly connected to the connecting sleeve 13 to complete the connection of the two nylon corrugated pipes 11. By abutting the abutting blocks 14 on the connecting sleeve 13, the position of the connecting sleeve 13 on the two nylon straight pipes 12 is limited, reducing the possibility of loosening and falling out of the connecting sleeve 13 due to vehicle body vibration. One end of the connector 2 is provided with a second inner thread 21 which can be threadedly connected with the outer thread 121. The second inner thread 21 on the connector 2 can be threadedly connected to the outer thread 121 of the nylon straight pipe 12.

[0038] With reference to Figure 3 and Figure 4The abutting block 14 is fixedly connected with a first sealing ring 141 on the side away from the corresponding nylon corrugated pipe 11. When the abutting block 14 moves to abut on the connecting sleeve 13, the first sealing ring 141 simultaneously abuts on the side surface of the connecting sleeve 13 in the axial direction. By arranging the first sealing ring 141 on the abutting block 14, the connecting sleeve 13 and the nylon water pipe are sealed, the threaded connection between the connecting sleeve 13 and the nylon water pipe is achieved, and the abutment by the first sealing ring 141 reduces the possibility of liquid overflowing from the connection between the connecting sleeve 13 and the nylon water pipe.

[0039] With reference to Figure 5 and Figure 6 The nylon straight pipes 12 at both ends of the nylon corrugated pipe 11 are respectively fixedly connected with plug-in blocks 122 or are provided with plug-in grooves 123 that can be plug-in matched with the plug-in blocks 122. When the two nylon corrugated pipes 11 are connected, the plug-in blocks 122 and the plug-in grooves 123 are plug-in matched. Through the plug-in matching between the plug-in grooves 123 and the plug-in blocks 122, the two nylon straight pipes 12 of the two nylon corrugated pipes 11 are conveniently butt-jointed, and at the same time, the effect of labyrinth sealing is achieved, reducing the possibility of liquid overflowing from the gap between the two nylon straight pipes 12.

[0040] Of course, the above is only a typical example of the present application, and in addition to this, the present application can have other various specific implementation manners, and any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of the present application.

Claims

1. A new energy vehicle cooling water pipe, comprising a cooling pipe main body (1) and two joints (2), characterized in that: The cooling pipe body (1) comprises a plurality of nylon corrugated pipes (11) and a plurality of connecting sleeves (13), both ends of each of the plurality of nylon corrugated pipes (11) are respectively provided with a nylon straight pipe (12), both ends of each of the plurality of connecting sleeves (13) are respectively detachably connected to the nylon straight pipes (12) of two adjacent nylon corrugated pipes (11), and two joints (2) are respectively detachably connected to the two nylon straight pipes (12) at both ends of the cooling pipe body (1).

2. The cooling water pipe of a new energy vehicle according to claim 1, characterized in that: A first internal thread (131) is formed in the inner wall of the connecting sleeve (13), an external thread (121) threadedly connected with the first internal thread (131) is formed in the outer wall of the nylon straight pipe (12), and an abutting block (14) is threadedly connected to the nylon straight pipe (12), when the connecting sleeve (13) is threadedly connected with the nylon straight pipe (12), the abutting block (14) is moved to abut on the two sides of the connecting sleeve (13) in the axial direction.

3. The cooling water pipe of a new energy vehicle according to claim 2, characterized in that: A first sealing ring (141) is arranged on the side of the abutting block (14) away from the corresponding nylon corrugated pipe (11), when the abutting block (14) is moved to abut on the connecting sleeve (13), the first sealing ring (141) is simultaneously abutted on the side of the connecting sleeve (13) in the axial direction.

4. The cooling water pipe of a new energy vehicle according to claim 2, characterized in that: The nylon straight pipes (12) at both ends of the nylon corrugated pipe (11) are respectively fixedly connected with a plug-in block (122) or are provided with a plug-in groove (123) threadedly connected with the plug-in block (122), when two nylon corrugated pipes (11) are connected, the plug-in block (122) is plug-in matched with the plug-in groove (123).

5. The cooling water pipe of a new energy vehicle according to claim 2, characterized in that: The connecting sleeve (13) is hollow.

6. The cooling water pipe of a new energy vehicle according to claim 2, characterized in that: One end of the joint (2) is provided with a second internal thread (21) threadedly connected with the external thread (121).

7. The cooling water pipe of a new energy vehicle according to claim 1, characterized in that: The nylon corrugated pipe (11) comprises, from inside to outside, a corrosion-resistant layer (111), a reinforcing layer (112) and a wear-resistant layer (113), the corrosion-resistant layer, the reinforcing layer (112) and the wear-resistant layer (113) are sequentially adhered, the corrosion-resistant layer (111) and the wear-resistant layer (113) are made of different nylon materials, and the reinforcing layer (112) is made of carbon fiber material.