Liquid inlet module of new energy thermal control system and fluid connector applying same

By adopting a novel liquid inlet module structure in the fluid connector of new energy flight equipment, and using radial bumps and positioning guide grooves combined with anti-loosening components, the loosening and leakage problems caused by frequent plugging and unplugging and high current-carrying cooling are solved, achieving stable connection and rapid cooling.

CN224683532UActive Publication Date: 2026-08-25SUZHOU RECODEAL INTERCONNECT SYST
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Patent Information

Application Number
CN202521605171.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-30
Publication Date
2026-08-25
Estimated Expiration
2035-07-30

AI Technical Summary

Technical Problem

The fluid connectors of existing new energy flight equipment are prone to loosening and leakage under frequent plugging and unplugging and high current cooling, resulting in short service life and difficulty in long-term stable use.

Method used

The new liquid inlet module structure includes a plug housing, a liquid inlet component, and an anti-loosening component. It achieves one-time anti-rotation positioning through radial protrusions and positioning guide grooves, and forms a double anti-loosening structure with screw hole blocks, anti-loosening washers, and locking components to ensure the stability of the connection.

Benefits of technology

It achieves stable connection of fluid connectors under long-term frequent mating and unmating conditions and high current carrying capacity cooling conditions, avoiding loosening and leakage, extending service life, and enabling rapid cooling to the optimal temperature.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a new energy heat control system's liquid inlet module and the fluid connector of using it. The fluid connector's liquid inlet module includes plug shell, a plurality of liquid inlet pieces and anti -loose subassembly, is equipped with the axial positioning guide slot in the first axle hole of a plurality of first axle holes of plug shell, and the radial lug of liquid inlet piece is connected positioning guide slot and is positioned shoulder and is pasted the inner chamber wall of plug shell, and the self -locking closure of liquid inlet piece can be pushed by external force and make liquid enter, and anti -loose subassembly includes screw hole block, anti -loose gasket and lock connecting piece, and the outer wall of screw hole block is equipped with a plurality of horizontal perforation, and screw hole block connects screw thread section and makes anti -loose gasket closely and pastes the front end wall of plug shell, and lock connecting piece passes through the perforation of adjacent screw hole block and both ends head locking forms the fixed ring, thereby forms the reliable connection structure of double anti -loose. The utility model has the effect that fastening reliable connection, long -term use has no leakage, and the high flow rate liquid cooling phenomenon is suitable.
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Description

Technical Field

[0001] This utility model relates to the field of connectors, and in particular to the liquid inlet module of a new energy thermal control system and the fluid connectors using it. Background Technology

[0002] In the field of new energy flight equipment, especially electric flying cars, the power supply for these devices is new energy batteries (such as lithium-ion batteries). To achieve lightweight design, these devices lack a built-in thermal management system. The vertical descent phase of an electric flying car is the most energy-intensive part of flight, requiring deceleration and precise maneuvers. This significant energy consumption heats the batteries, with temperatures reaching 60 degrees Celsius or higher. However, the optimal operating temperature range for batteries is 10 to 45 degrees Celsius. Therefore, fluid connectors are needed to connect external liquid cooling sources and internal cooling channels to cool the batteries to their optimal temperature range. Currently, fluid connectors... The fluid connector's inlet module is installed at the battery pack end, and the outlet module is installed at the pipe end. During use, the two are axially plugged in and out to connect or disconnect. The problems are as follows: First, when plugging and unplugging frequently over a long period of time, the inlet terminal tube of the inlet module is prone to loosening. The inlet terminal moves back and forth, resulting in incomplete plugging and unplugging and liquid leakage. Alternatively, the inlet terminal may rotate and tilt, causing difficulty in plugging and unplugging or excessive plugging and unplugging, which may damage the pipe. Therefore, the fluid connector is difficult to use stably for a long time and has a short service life. Second, when the coolant velocity is too high, resulting in excessive impact load, the inlet module will also loosen, resulting in incomplete plugging and unplugging or misalignment. Utility Model Content

[0003] To address one or more of the aforementioned problems, this utility model provides a liquid inlet module for a new energy thermal control system and a fluid connector using the same.

[0004] According to one aspect of the present invention, the liquid inlet module of the new energy thermal control system includes: a plug shell, a plurality of liquid inlet components, and an anti-loosening component; The rear end of the plug housing is open and its front wall is provided with multiple first shaft holes, and the first shaft holes are provided with axial positioning guide grooves. The outer wall of the middle connecting section of the liquid inlet is integrally provided with a radial protrusion. The rear end of the connecting section is provided with a positioning shoulder and the front end is provided with a threaded section. The connecting section passes through the first shaft hole, the radial protrusion connects to the positioning guide groove, and the positioning shoulder fits against the inner wall of the plug shell. The front end of the liquid inlet is interference-fitted with the pipeline of the thermal control system, and the self-locking sealing part of its rear port can be pushed by external force to allow liquid to enter. The anti-loosening component includes a screw hole block, an anti-loosening washer, and a locking member. The outer wall of the screw hole block has multiple transverse through holes. The anti-loosening washer passes through the threaded section. The screw hole block connects to the threaded section and makes the anti-loosening washer fit tightly against the front wall of the plug housing. The locking member passes through the through holes of adjacent screw hole blocks and the two ends are locked to form a fixing ring, thereby forming a reliable connection structure with double anti-loosening.

[0005] The liquid inlet module of this new energy thermal control system adopts a novel and stable structure. The liquid inlet module achieves primary anti-rotation through radial protrusions 22 and positioning guide grooves 11, primary positioning through positioning shoulders 23 and the inner wall of the plug housing 1, and primary anti-loosening through screw hole blocks 31 and anti-loosening washers 32 of the novel anti-loosening component 3. Furthermore, multiple liquid inlet components 2 are connected into a whole through locking couplings 33, effectively reducing their rotation and forward and backward movement, and achieving a highly reliable and stable fixed connection. Its beneficial effects are: First, the connection structure has a constant and stable position, effectively preventing loosening and rotation, and is suitable for long-term and frequent plugging and unplugging applications. There is no liquid leakage caused by forward and backward loosening or skewed plugging and unplugging caused by rotation and tilting. The accuracy of the pipe remains unchanged after long-term use, so that the fluid connector can be used effectively and stably for a long time with a long service life. Second, the connection is tight and can use high current carrying capacity cooling phenomenon, which can quickly cool to the optimal temperature.

[0006] In some implementations, the screw hole block is a regular polygon, with the through hole extending laterally through both sides of the edge of the regular polygon.

[0007] In some implementations, the locking element is a steel wire that passes through a hole and has both ends tightened. Alternatively, the locking element may be a steel cable tie structure, with the free end of the cable tie entering the locking port through a through hole until the cable tie is taut.

[0008] In some embodiments, the front end wall of the plug housing is further provided with an outer annular groove that is concentric with the first shaft hole, and an outer sealing ring is installed in the outer annular groove; The anti-loosening component also includes an annular pad, with an anti-loosening gasket attached to the outside of the pad and an outer sealing ring pressed tightly against its inside.

[0009] In some embodiments, the front end face of the positioning shoulder is coaxially provided with an inner annular groove, and an inner sealing ring is installed in the inner annular groove, with the inner sealing ring fitting against the inner wall of the plug housing.

[0010] In some implementations, both the outer and inner sealing rings are O-rings.

[0011] In some embodiments, the inlet component includes a front connector and a rear connector. The rear end of the front connector is sequentially formed with a connecting section, a positioning shoulder, and an end screw hole section. The front end of the rear connector is externally threaded into the end screw hole section and an end seal is provided at the front end of the connection. The rear port of the rear connector is provided with a stop end ring. A self-locking seal is located inside the rear connector and a damping return spring is provided between its front wall and the inner limiting wall of the front connector. The end seal of the self-locking seal and the port of the rear connector are in sliding sealing fit.

[0012] In some implementations, the outer peripheral wall of the positioning shoulder forms a regular hexagonal surface.

[0013] In some embodiments, the front wall of the plug housing is provided with two first axial holes symmetrically in the transverse direction. The inner wall of the plug housing also integrally protrudes backward to form a guide tube, and its inner wall is integrally provided with an axial guide strip. The inner wall of the guide tube and the guide post of the liquid outlet module are connected in cooperation. The outer wall of the guide tube and the middle tube hole of the socket housing of the liquid outlet module are slidably sleeved. The guide strip is connected to the axial groove of the outer peripheral wall of the socket housing.

[0014] According to another aspect of this utility model, a fluid connector includes: a liquid outlet module and a liquid inlet module as described above. Multiple liquid outlet components are installed within the socket housing of the liquid outlet module. A liquid inlet tube is fixed to the rear end of each liquid outlet component. When the socket housing is inserted into the plug housing, the liquid outlet component connects to the liquid inlet component. Its advantages are: this fluid connector provides a secure and reliable connection, is leak-free during long-term use, is easy to install, and is suitable for high-flow-rate liquid cooling applications. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the liquid inlet module of a new energy thermal control system according to one embodiment of the present invention; Figure 2 for Figure 1 A cross-sectional schematic diagram of the liquid inlet module of the new energy thermal control system shown. Figure 3 for Figure 1 A three-dimensional schematic diagram of the plug housing shown; Figure 4 for Figure 3 The diagram shows a cross-sectional view of the plug housing. Figure 5 for Figure 1 A three-dimensional schematic diagram of the liquid inlet shown; Figure 6 for Figure 1 The diagram shows a three-dimensional schematic of the liquid inlet module applied to a fluid connector. Figure 7 for Figure 6 A cross-sectional schematic diagram of the fluid connector shown; Liquid inlet module 00, plug housing 1, first shaft hole 10, positioning guide groove 11, outer ring groove 12, guide tube 13, guide bar 14, liquid inlet component 2, front connecting tube 20, connecting section 21, radial protrusion 22, positioning shoulder 23, threaded section 24, self-locking sealing component 25, rear connecting tube 26, damping return spring 27, inner ring groove 28, anti-loosening component 3, screw hole block 31, through hole 310, anti-loosening gasket 32, locking component 33, pad 34, outer sealing ring 4, inner sealing ring 5, end seal 9; Liquid outlet module 01, socket housing 6, liquid outlet component 7, pagoda connector 71, ejector pin 72, guide post 8; Liquid passage tube 02. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to the directions in the accompanying drawings, while the terms "inner" and "outer" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0017] Figures 1 to 7 The diagram schematically illustrates the liquid inlet module of a new energy thermal control system according to one embodiment of the present invention and the fluid connector thereon.

[0018] like Figures 1 to 5 As shown, the liquid inlet module of the new energy thermal control system includes: a plug housing 1, several liquid inlet components 2, and an anti-loosening component 3; The plug housing 1 has an open rear end and its front wall is provided with a plurality of first shaft holes 10, and an axial positioning guide groove 11 is provided in the first shaft hole 10; The outer wall of the intermediate connecting section 21 of the liquid inlet 2 is integrally provided with a radial protrusion 22. The rear end of the connecting section 21 is provided with a positioning shoulder 23 and the front end is provided with a threaded section 24. The connecting section 21 passes through the first shaft hole 10, the radial protrusion 22 connects to the positioning guide groove 11, and the positioning shoulder 23 fits against the inner wall of the plug shell 1. The front end of the liquid inlet 2 is interference fitted with the pipeline of the thermal control system, and the self-locking sealing member 25 at its rear port can be pushed by external force to allow liquid to enter. The anti-loosening component 3 includes a screw hole block 31, an anti-loosening washer 32, and a locking member 33. The outer wall of the screw hole block 31 is provided with multiple transverse through holes 310. The anti-loosening washer 32 passes through the threaded section 24. The screw hole block 31 connects to the threaded section 24 and makes the anti-loosening washer 32 fit tightly against the front end wall of the plug housing 1. The locking member 33 passes through the through holes 310 of the adjacent screw hole blocks 31 and the two ends are locked to form a fixing ring, thereby forming a reliable connection structure with double anti-loosening.

[0019] The liquid inlet module of this new energy thermal control system adopts a novel and stable structure. The liquid inlet module achieves primary anti-rotation through radial protrusions 22 and positioning guide grooves 11, primary positioning through positioning shoulders 23 and the inner wall of the plug housing 1, and primary anti-loosening through screw hole blocks 31 and anti-loosening washers 32 of the novel anti-loosening component 3. Furthermore, multiple liquid inlet components 2 are connected into a whole through locking couplings 33, effectively reducing their rotation and forward and backward movement, and achieving a highly reliable and stable fixed connection. Its beneficial effects are: First, the connection structure has a constant and stable position, effectively preventing loosening and rotation, and is suitable for long-term and frequent plugging and unplugging applications. There is no liquid leakage caused by forward and backward loosening or skewed plugging and unplugging caused by rotation and tilting. The accuracy of the pipe remains unchanged after long-term use, so that the fluid connector can be used effectively and stably for a long time with a long service life. Second, the connection is tight and can use high current carrying capacity cooling phenomenon, which can quickly cool to the optimal temperature.

[0020] Furthermore, the screw hole block 31 has a regular polygonal structure, with the through hole 310 horizontally penetrating both sides of the edge of the regular polygon. Preferably, the screw hole block 31 is machined from a nut. Its advantages are: the screw hole block 31 is easy to operate, and the through hole 310 facilitates connection.

[0021] Furthermore, the locking element 33 is made of steel wire, which passes through the through hole 310 and has both ends tightened; or the locking element 33 is a steel cable tie structure, with the free end of the cable tie entering the locking port through the through hole 310 until the cable tie is taut. Its advantages are: the locking element 33 is easy to install and can achieve a good elastic fastening connection.

[0022] Furthermore, the front wall of the plug housing 1 is also provided with an outer ring groove 12 that is concentric with the first shaft hole 10, and an outer sealing ring 4 is installed in the outer ring groove 12; the anti-loosening component 3 also includes an annular pad 34, the outer side of the pad 34 is attached to the anti-loosening pad 32 and its inner side is pressed against the outer sealing ring 4.

[0023] Preferably, the front end face of the positioning shoulder 23 is coaxially provided with an inner ring groove 28, and an inner sealing ring 5 is installed in the inner ring groove 28, fitting against the inner cavity wall of the plug housing 1. Preferably, both the outer sealing ring 4 and the inner sealing ring 5 are O-rings. The beneficial effects are: the outer sealing ring 4 and the inner sealing ring 5 have high installation position accuracy, high double-end sealing accuracy, and effectively avoid leakage.

[0024] Furthermore, the liquid inlet component 2 includes a front connecting pipe 20 and a rear connecting pipe 26. The rear end of the front connecting pipe 20 sequentially forms a connecting section 21, a positioning shoulder 23, and an end threaded hole section. The front end of the rear connecting pipe 26 is externally threaded into the end threaded hole section, and an end seal 9 is provided at the front end of the connection. The rear port of the rear connecting pipe 26 is provided with a stop end ring. A self-locking sealing member 25 is located inside the rear connecting pipe 26, and a damping return spring 27 is provided between its front wall and the inner limiting wall of the front connecting pipe 20. The end seal 9 of the self-locking sealing member 25 and the port of the rear connecting pipe 26 are in sliding sealing fit. Its beneficial effects are: the liquid inlet component 2 has detachably connected front and rear pipes, and the floating self-locking sealing member 25 is easy to close and separate, and the end seals 9 at both ends provide a good sealing connection.

[0025] Preferably, the outer peripheral wall of the positioning shoulder 23 is formed into a regular hexagonal surface, making it a hexagonal clamping surface that facilitates installation. The advantage of this design is that it facilitates installation operations.

[0026] Furthermore, the front wall of the plug housing 1 is symmetrically provided with two first axial holes 10. The inner wall of the plug housing 1 also integrally protrudes rearward to form a guide tube 13, and its inner wall is integrally provided with an axial guide strip 14. The inner wall of the guide tube 13 is connected to the guide post 8 of the liquid outlet module 01. The outer wall of the guide tube 13 is slidably sleeved with the middle tube hole of the socket housing 6 of the liquid outlet module 01. The guide strip 14 is connected to the axial sliding groove on the outer peripheral wall of the socket housing 6. Its beneficial effects are: this structure can achieve a good foolproof and guiding structure, which facilitates product installation.

[0027] like Figures 6 to 7 As shown, the fluid connector includes: an outlet module 01 and an inlet module 00 of any of the above-mentioned types. The outlet module 01 includes a socket housing 6 and multiple outlet components 7. Each insertion tube of the socket housing 6 houses one outlet component 7. A liquid inlet tube 02 is fixed to the rear end of the outlet component 7. When the socket housing 6 is inserted into the plug housing 1, the outlet component 7 connects to the inlet component 2. Preferably, the inner cavity of the outlet component 7 is provided with a pin 72 and is connected by a spring for floating connection. Its advantages are: the fluid connector can provide a tight and reliable connection, has no leakage during long-term use, is easy to insert, and is suitable for high-flow-rate liquid cooling phenomena.

[0028] The liquid inlet pipe 02 is connected to the pagoda connector 71 at the rear end of the liquid outlet 7 via an interference fit, and the two are fixed together by a clamp. A nut pair can also be added for locking. The advantages of this design are: a secure connection, preventing liquid leakage, and avoiding pipe damage due to heavy loads during use.

[0029] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A liquid inlet module for a new energy thermal control system, characterized in that, Includes: plug housing (1), several liquid inlet components (2), and anti-loosening components (3); The plug housing (1) has an open rear end and its front wall is provided with a plurality of first shaft holes (10), and the first shaft holes (10) are provided with axial positioning guide grooves (11). The outer wall of the middle connecting section (21) of the liquid inlet (2) is integrally provided with a radial protrusion (22). The rear end of the connecting section (21) is provided with a positioning shoulder (23) and the front end is provided with a threaded section (24). The connecting section (21) passes through the first shaft hole (10), the radial protrusion (22) connects to the positioning guide groove (11), and the positioning shoulder (23) fits against the inner wall of the plug shell (1). The front end of the liquid inlet (2) is interference fitted with the pipeline of the thermal control system, and the self-locking sealing part (25) of its rear port can be pushed by external force to allow liquid to enter. The anti-loosening component (3) includes a screw hole block (31), an anti-loosening washer (32), and a locking member (33). The outer wall of the screw hole block (31) is provided with multiple transverse through holes (310). The anti-loosening washer (32) is fitted through the threaded section (24). The screw hole block (31) is connected to the threaded section (24) and the anti-loosening washer (32) is tightly fitted to the front wall of the plug shell (1). The locking member (33) passes through the through holes (310) of the adjacent screw hole blocks (31) and the two ends are locked to form a fixing ring, thereby forming a reliable connection structure with double anti-loosening.

2. The liquid inlet module of the new energy thermal control system according to claim 1, characterized in that, The screw hole block (31) is a regular polygon, and the through hole (310) extends laterally through both sides of the edge of the regular polygon.

3. The liquid inlet module of the new energy thermal control system according to claim 2, characterized in that, The locking element (33) is a steel wire, which passes through the through hole (310) and tightens both ends; Alternatively, the locking element (33) may be a steel cable tie structure, with the free end of the cable tie entering the locking port through the through hole (310) until the cable tie is tightened.

4. The liquid inlet module of the new energy thermal control system according to claim 1, characterized in that, The front wall of the plug housing (1) is also provided with an outer ring groove (12) that is concentric with the first shaft hole (10), and an outer sealing ring (4) is installed in the outer ring groove (12). The anti-loosening component (3) also includes an annular pad (34), the outer side of which is attached to the anti-loosening gasket (32) and the inner side of which is pressed against the outer sealing ring (4).

5. The liquid inlet module of the new energy thermal control system according to claim 4, characterized in that, The positioning shoulder (23) has an inner ring groove (28) coaxially provided on the front end face. An inner sealing ring (5) is installed in the inner ring groove (28) and fits against the inner wall of the plug shell (1).

6. The liquid inlet module of the new energy thermal control system according to claim 5, characterized in that, Both the outer sealing ring (4) and the inner sealing ring (5) are O-rings.

7. The liquid inlet module of the new energy thermal control system according to claim 1, characterized in that, The liquid inlet component (2) includes a front connecting pipe (20) and a rear connecting pipe (26). The rear end of the front connecting pipe (20) is sequentially formed with a connecting section (21), a positioning shoulder (23), and an end screw hole section. The front end of the rear connecting pipe (26) is externally threaded into the end screw hole section and an end seal (9) is provided at the front end of the connection. The rear port of the rear connecting pipe (26) is provided with a stop end ring. The self-locking sealing component (25) is located inside the rear connecting pipe (26) and a damping return spring (27) is provided between its front wall and the inner limiting wall of the front connecting pipe (20). The end seal (9) of the self-locking sealing component (25) and the port of the rear connecting pipe (26) are in sliding sealing cooperation.

8. The liquid inlet module of the new energy thermal control system according to claim 7, characterized in that, The outer peripheral wall of the positioning shoulder (23) forms a regular hexagonal surface.

9. The liquid inlet module of the new energy thermal control system according to any one of claims 1 to 8, characterized in that, The front wall of the plug housing (1) is provided with two first shaft holes (10) symmetrically arranged laterally. The inner wall of the plug housing (1) also integrally protrudes backward to form a guide tube (13) and its inner wall is integrally provided with an axial guide strip (14). The inner wall of the guide tube (13) and the guide post (8) of the liquid outlet module (01) are connected in cooperation. The outer wall of the guide tube (13) and the middle tube hole of the socket housing (6) of the liquid outlet module (01) are slidably sleeved. The guide strip (14) and the axial groove of the outer peripheral wall of the socket housing (6) are connected.

10. A fluid connector, characterized in that, include: The liquid outlet module (01) and the liquid inlet module (00) according to any one of claims 1 to 9, wherein a plurality of liquid outlet components (7) are installed in the socket housing (6) of the liquid outlet module (01), and the liquid outlet component (7) has a fixed plug tube (02) at the rear end. When the socket housing (6) is inserted into the plug housing (1), the liquid outlet component (7) is connected to the liquid inlet component (2).