Fluid connector

Abstract

The application provides a fluid connector, which comprises a first connecting assembly and a second connecting assembly, the first connecting assembly comprises a first barrel, an abutting ring, a valve block and a first elastic member which are sequentially connected in the first barrel, and the second connecting assembly comprises a second barrel, an abutting block, a valve barrel and a second elastic member which are arranged in the second barrel; the fluid connector has a disassembled state and an assembled state, in the disassembled state, the first connecting assembly and the second connecting assembly are automatically closed, and in the assembled state, the first connecting assembly and the second connecting assembly are inserted into each other and are mutually pushed to be opened. The fluid connector is reliable in sealing, convenient in connection and good in fluid flowing effect.

Description

Technical Field

[0001] This application relates to the field of connector technology, and more particularly to a fluid connector. Background Technology

[0002] With the continuous improvement of power density and the expansion of application scenarios in outdoor energy storage systems, traditional air-cooling technology can no longer meet the high-efficiency temperature control requirements of battery packs. Advanced heat dissipation solutions such as liquid cooling and immersion cooling are gradually becoming the mainstream development direction in the industry. Among them, liquid cooling solutions connect heat dissipation pipes through fluid connectors, using fluid to directly remove the heat generated by the battery cells. This enables precise temperature control of the battery, effectively improving the operational safety, energy conversion efficiency, and lifespan of the energy storage system. Therefore, it has received widespread attention and application in the field of outdoor energy storage. As a key connecting component between pipes and equipment, and between devices in the liquid cooling system, the performance of the fluid connector directly determines the operational stability and heat dissipation efficiency of the entire cooling system, and is one of the core supports for the large-scale application of liquid cooling technology.

[0003] However, the fluid connectors used in existing outdoor energy storage liquid cooling systems still have many technical defects, which seriously restrict the application effect of liquid cooling technology: First, the connection operation is difficult. Existing fluid connectors mostly rely on bolt fixing and complex thread mating, which not only requires professional tools and skilled operators, but also has a cumbersome installation and maintenance process, resulting in low deployment efficiency of the heat dissipation system and significantly increasing construction and operation and maintenance costs; some quick-connect fluid connectors simplify the operation, but it is difficult to balance the ease of plugging and unplugging with the reliability of the connection, thus limiting their practicality. Second, the connection stability is insufficient. Outdoor energy storage equipment faces complex environmental tests such as rainstorms, salt spray corrosion, extreme temperature differences, and high-frequency vibrations for a long time. The connection structure design of existing fluid connectors is unreasonable, and problems such as loosening and aging and failure of sealing rings are prone to occur. This not only affects the sealing performance of the heat dissipation system, but may also lead to fluid leakage, which may cause safety hazards such as battery short circuits. Third, the fluid flow effect is poor. Existing fluid connectors lack optimized internal flow channel designs, often exhibiting issues such as abrupt structural changes, excessive bends, and rough inner walls. This results in high flow resistance when fluid flows through them, easily generating eddies and dead volumes. This not only reduces fluid circulation efficiency and increases system drive energy consumption but also causes uneven flow distribution, affecting the consistency of heat dissipation among battery cells. Furthermore, an unreasonable flow channel design exacerbates the impact and wear of fluid on various components, further reducing the sealing reliability and service life of the fluid connector.

[0004] It is important to note that the techniques described in this section are not necessarily those previously conceived or adopted. Unless otherwise specified, no technique described in this section should be assumed to be prior art simply because it is included in this section. Similarly, unless otherwise specified, the issues mentioned in this section should not be considered to be recognized in any prior art. Utility Model Content

[0005] This application provides a fluid connector designed to solve the technical problems of existing fluid connectors, such as difficult connection operation, unstable connection, and poor fluid flow effect.

[0006] To achieve the above objectives, this application provides a fluid connector, the fluid connector comprising: A first connecting assembly includes a first cylindrical body, an abutment ring, a valve block, and a first elastic element disposed within the first cylindrical body and connected sequentially thereto. The first cylindrical body includes a first connecting end, the valve block is movably connected to the first connecting end, and the abutment ring is fixedly connected to the first cylindrical body. The second connecting assembly includes a second cylinder, an abutment block disposed within the second cylinder, a valve cylinder, and a second elastic member. The second cylinder includes a second connecting end. One end of the abutment block is located inside the second connecting end with a gap, and the other end of the abutment block is fixedly connected to the second cylinder. A liquid passage gap is formed between the abutment block and the second cylinder. The valve cylinder is movably sleeved between the second connecting end and the abutment block. The second elastic member is sleeved outside the abutment block, and both ends of the second elastic member are respectively connected to the end of the abutment block connected to the second cylinder and the valve cylinder. The fluid connector has a detached state and an assembled state. In the detached state, the valve block is sealed to the first connecting end under the push of the first elastic member, and the valve cylinder is sealed to the second connecting end and the abutment block under the push of the second elastic member. In the assembled state, the first connecting end is inserted into the second connecting end and abuts against the valve cylinder. The inner wall of the first connecting end and the inner wall of the valve cylinder are smoothly connected. The valve cylinder is located between the two ends of the second cylinder. The valve cylinder opens to close the second connecting end. The length of the first elastic member is shorter than its length in the detached state. The abutment block extends into the first cylinder and abuts against the valve block. The abutment block and the valve block are smoothly connected. The valve block is located between the two ends of the first cylinder. The valve block opens to close the first connecting end. The length of the second elastic member is shorter than its length in the detached state. The first cylinder and the second cylinder are in communication with each other.

[0007] Optionally, the first cylinder includes a first sub-cylinder, a second sub-cylinder, a third sub-cylinder, and a fourth sub-cylinder. The first sub-cylinder includes a small-diameter section and a large-diameter section connected to each other. One end of the second sub-cylinder is disposed within the large-diameter section. The third sub-cylinder is sleeved between the large-diameter section and the second sub-cylinder and connects to the large-diameter section. The outer wall of the end of the second sub-cylinder located within the large-diameter section extends outward to form a first abutment platform. The first abutment platform is located between the end face of the large-diameter section and the end face of the third sub-cylinder and abuts against the large-diameter section and the third sub-cylinder, respectively. The third sub-tube is located outside the large-diameter section and its outer wall extends outward to form a second abutment platform. The second abutment platform abuts against the end face of the large-diameter section away from the small-diameter section. The fourth sub-tube is sleeved outside the large-diameter section, and the orthographic projection of the fourth sub-tube onto the large-diameter section coincides with the orthographic projection of the third sub-tube onto the large-diameter section. The abutment ring is located inside the end of the second sub-tube located inside the large-diameter section. The valve block is located inside the end of the second sub-tube located outside the large-diameter section. The first elastic element is located inside the second sub-tube.

[0008] Optionally, the third sub-cylinder is threadedly connected to the large-diameter section, and the fourth sub-cylinder is threadedly connected to the large-diameter section.

[0009] Optionally, the first sub-cylinder is cavity-shaped, and the radial dimensions of the small-diameter section and the large-diameter section can be floating.

[0010] Optionally, the inner wall of the first connecting end extends inward to form a docking portion. The valve block includes an integrally formed connecting sub-part and a flow guiding sub-part connected to each other. The connecting sub-part is used to seal the docking portion. The flow guiding sub-part is arranged to first expand and then contract in the direction away from the connecting sub-part. The size of the end of the flow guiding sub-part connected to the connecting sub-part is larger than the size of the connecting sub-part. The peripheral sidewall of the flow guiding sub-part is concave to form at least two flow guiding areas. The length direction of the at least two flow guiding areas is parallel to the length direction of the flow guiding sub-part. The at least two flow guiding areas are arranged circumferentially along the flow guiding sub-part.

[0011] Optionally, the inner wall of the first connecting end extends inward to form a limiting part, the limiting part is located on the side of the docking part near the flow guide sub-part, the limiting part is smoothly connected to the docking part, the shape of the limiting part is adapted to the shape of the end of the flow guide sub-part connected to the connecting sub-part, the limiting part is used to movably connect the peripheral sidewall of the end of the flow guide sub-part connected to the connecting sub-part, and the limiting part is used to prevent the valve block from detaching from the first cylinder.

[0012] Optionally, the inner wall of the first cylinder is recessed outward to form an annular groove, the length direction of which is parallel to the circumferential direction of the first cylinder, and the fluid connector includes: A sealing ring is disposed in the annular groove. The outer wall of the abutment ring extends outward to form an annular protrusion coaxial with it. The sealing ring connects the abutment ring and the annular protrusion on the side away from the first connecting end. The first elastic member abuts against the abutment ring and the annular protrusion on the side facing the first connecting end. The valve block has an abutment groove formed in the recess of the first elastic element away from the first elastic element, and the first elastic element abuts against the abutment groove.

[0013] Optionally, the second cylinder includes a fifth sub-cylinder, a sixth sub-cylinder, and a seventh sub-cylinder. One end of the fifth sub-cylinder is sleeved outside one end of the sixth sub-cylinder. The inner wall of the portion of the fifth sub-cylinder located outside and near the sixth sub-cylinder is recessed outward to form a connecting groove. The side of the connecting groove facing the sixth sub-cylinder extends through the fifth sub-cylinder so that the connecting groove communicates with the end face of the sixth sub-cylinder. The outer wall of the portion of the sixth sub-cylinder located outside the fifth sub-cylinder extends outward to form a third abutment platform. The fifth sub-cylinder connects to the fifth sub-cylinder... One end face of the sixth sub-tube abuts against the third abutment platform, and the seventh sub-tube is sleeved outside the third abutment platform; one end of the abutment block is located in the end of the sixth sub-tube away from the fifth sub-tube, and the other end of the abutment block extends out of the end of the sixth sub-tube connected to the fifth sub-tube and is connected to the end face of the sixth sub-tube and the connecting groove on opposite sides respectively; the valve tube is located in the end of the sixth sub-tube away from the fifth sub-tube and is movably connected to the sixth sub-tube and the abutment block; the second elastic element is located inside the sixth sub-tube.

[0014] Optionally, the abutment block includes an integrally formed connecting plate, a connecting frame, and a connecting ring connected in sequence. The connecting plate is located in the second connecting end with a gap. The peripheral sidewall of the connecting plate is used to seal the valve cylinder. The two ends of the connecting frame are gradually tapered inward. The outer ring wall of the connecting ring is fixedly sleeved on the inner wall of the second cylinder.

[0015] Optionally, the connecting frame includes a connecting sub-block, a connecting rod, and a connecting sub-plate connected in sequence. The connecting sub-block is conical, with its circular surface connected to the connecting plate and its conical end connected to the connecting rod. The connecting sub-plate is triangular, with one corner connected to the connecting frame and the remaining two corners connected to the opposite sides of the connecting ring.

[0016] Optionally, the inner wall of the valve cylinder is gradually widened in the direction away from the second connecting end; a notch is provided at one end of the valve cylinder opposite to the second connecting end, the notch is L-shaped, the notch extends along the axial direction of the valve cylinder, and the length of the notch on the outer wall of the valve cylinder is greater than its length on the inner wall of the valve cylinder.

[0017] During assembly, the fluid connector of this application only requires inserting the first connecting end into the second connecting end. The mechanical interaction between the two triggers a linkage: the first connecting end pushes against the valve cylinder, and the abutment block pushes against the valve block, simultaneously compressing the first and second elastic elements. This causes the valve block to open the seal of the first connecting end and the valve cylinder to open the seal of the second connecting end, achieving communication between the first and second cylinders. The connection process is simple and convenient. In the disassembled state of the fluid connector, the valve block tightly seals the first connecting end under the action of the first elastic element, and the valve cylinder simultaneously seals the second connecting end and the abutment block under the action of the second elastic element; thus preventing fluid leakage when the first and second connecting components are not connected. In the assembled state of the fluid connector, fluid flows only within the first and second cylinders, effectively preventing leakage and improving the safety of the heat dissipation system. Both the first and second elastic elements are in a compressed state, and their elastic restoring force forms a continuous pre-tightening force on the valve block and valve cylinder, indirectly enhancing the tightness of the fit between the first and second connecting components and improving connection stability.

[0018] In the fluid connector of this application, the adaptable flow channel features formed by the structural differences of the abutment ring, valve block, abutment block, and valve cylinder, combined with the smooth transition connection between the inner wall of the valve cylinder and the inner wall of the first cylinder, and the smooth transition connection between the abutment block and the valve block, can produce the following significant technical effects: (1) Constructing a smooth and continuous flow channel to maximize the reduction of flow resistance. The abutment ring, as a fixed structure in the first cylinder, has its inner wall connected to the inner wall of the first cylinder, guiding the fluid to enter the first cylinder stably from upstream; the valve block guides the fluid, and the abutment block and the valve block are smoothly connected to form a continuous flow path, smoothly introducing the fluid into the liquid passage gap of the second cylinder; while the smooth transition connection between the inner wall of the valve cylinder and the inner wall of the first cylinder eliminates the structural abrupt change at the docking point of the first connecting component and the second connecting component. This multi-component relay smooth flow channel design avoids the generation of eddies and turbulence from the fluid inlet to the outlet, and at the same time eliminates the dead volume (i.e., the fluid stagnation area), significantly reducing the flow resistance of the fluid in the fluid connector. This not only increases the circulation speed of the fluid, but also reduces the energy consumption of the drive pump in the heat dissipation system, indirectly enhancing the heat dissipation response efficiency of the battery pack. (2) Reduce fluid impact and extend the service life of components. The smooth flow channel and transition connection design greatly reduces the impact of the fluid on the internal components of the fluid connector, helps to reduce the fatigue wear of the components, can extend the sealing performance of the fluid connector, and improve the reliability of the fluid connector in long-term outdoor use.

[0019] In addition, fluid can also flow in through the second cylinder and out through the first cylinder, and the fluid connector of this application can still produce the above-mentioned beneficial effects.

[0020] It should be understood that the description in this section is not intended to identify key or important features of this application, nor is it intended to limit the scope of this application. Other features of this application will become readily apparent from the following description. Attached Figure Description

[0021] The accompanying drawings exemplify embodiments and form part of the specification, working together with the textual description to explain exemplary implementations of the embodiments. The drawings shown are for illustrative purposes only and do not limit the scope of the claims. Throughout the drawings, the same reference numerals refer to similar but not necessarily identical elements.

[0022] Figure 1 This is a perspective view of an embodiment of the fluid connector of this application; Figure 2 for Figure 1 A perspective view of the first connecting component in the illustrated embodiment; Figure 3 for Figure 1 An exploded view of a portion of the structure of the first connecting component in the embodiment shown. Figure 4 for Figure 1 The three-dimensional valve block in the illustrated embodiment Figure 1 ; Figure 5 for Figure 1 The three-dimensional valve block in the illustrated embodiment Figure 2 ; Figure 6 for Figure 1 A perspective view of the second connecting component in the illustrated embodiment; Figure 7 for Figure 1 An exploded view of a portion of the structure of the second connecting component in the embodiment shown. Figure 8 for Figure 1 The three-dimensional abutment block in the illustrated embodiment Figure 1 ; Figure 9 for Figure 1 The three-dimensional abutment block in the illustrated embodiment Figure 2 ; Figure 10 for Figure 1 A cross-sectional view of the first connecting component in the detached state in the illustrated embodiment; Figure 11 for Figure 1 A cross-sectional view of the second connecting component in the detached state in the embodiment shown; Figure 12 for Figure 1 A cross-sectional view of the assembly state of the embodiment shown.

[0023] Explanation of reference numerals in the attached figures: Detailed Implementation

[0024] To make the inventive objectives, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0026] In the description of the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. The term "multiple" means two or more, unless otherwise explicitly specified. The term "comprising" indicates the presence of the described feature, whole, step, operation, element, and / or component, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or sets thereof. The term "and / or" describes the relationship between related objects, indicating that three relationships may exist. For example, A and / or B may include three cases: A existing alone, A and B existing simultaneously, and B existing alone. The character " / " generally indicates that the related objects before and after are in an "or" relationship.

[0027] Unless otherwise defined, all technical terms used in the embodiments of this application have the same meaning as commonly understood by one of ordinary skill in the art; the terms used in the embodiments of this application are for the purpose of describing specific embodiments only and are not intended to limit this application; the terms "comprising" and "having" and any variations thereof in the specification, claims and foregoing description of the drawings of this application are intended to cover non-exclusive inclusion.

[0028] Furthermore, terms such as "exemplary," "for example," and "optional" are used to indicate illustrative purposes. Any technical solution described by the above terms in the embodiments of this application should not be construed as being more preferred or advantageous than other technical solutions. Specifically, these terms are intended to present the relevant technical concepts in terms of specific implementation methods.

[0029] This application provides a fluid connector, which is a blind-mating connector. It reduces the connection difficulty for end users under unfavorable space, lighting, and temperature limitations. It allows for pressurized connection / disconnection in active liquid loop environments and is suitable for concealed terminal access interfaces. The fluid connector's operating pressure is 0~2.0MPa, its operating temperature is -40℃~110℃, and its working medium can be ethylene glycol aqueous solution (0~50% concentration) or pure water + corrosion inhibitor. The connector's housing is made of stainless steel and its surface is strengthened. The connector has a mechanical life of 500 mating cycles and features a radial ±6mm float and an axial ±3mm float.

[0030] The fluid connector of this application will be described in detail below with reference to the accompanying drawings.

[0031] Please see Figures 1 to 12The fluid connector 1 provided in this application includes a first connecting assembly 10 and a second connecting assembly 20. The first connecting assembly 10 includes a first cylindrical body 110 (i.e., the aforementioned housing portion), an abutment ring 120, a valve block 130, and a first elastic member 140 disposed within the first cylindrical body 110 and connected in sequence. The first cylindrical body 110 includes a first connecting end 100, the valve block 130 is movably connected to the first connecting end 100, and the abutment ring 120 is fixedly connected to the first cylindrical body 110. The second connecting assembly 20 includes a second cylinder 210 (i.e., the aforementioned shell portion), an abutment block 220 disposed within the second cylinder 210, a valve cylinder 230, and a second elastic member 240. The second cylinder 210 includes a second connecting end 200. One end of the abutment block 220 is located within the second connecting end 200 with a gap, and the other end of the abutment block 220 is fixedly connected to the second cylinder 210. A liquid passage gap is formed between the abutment block 220 and the second cylinder 210. The valve cylinder 230 is movably sleeved between the second connecting end 200 and the abutment block 220. The second elastic member 240 is sleeved outside the abutment block 220, and both ends of the second elastic member 240 are respectively connected to one end of the abutment block 220 that connects to the second cylinder 210 and the valve cylinder 230. The fluid connector 1 has a detached state and an assembled state. In the detached state, the valve block 130 is sealed to the first connecting end 100 under the push of the first elastic member 140, and the valve cylinder 230 is sealed to the second connecting end 200 and the abutment block 220 under the push of the second elastic member 240. In the assembled state, the first connecting end 100 is inserted into the second connecting end 200 and abuts against the valve cylinder 230. The inner wall of the first connecting end 100 and the inner wall of the valve cylinder 230 are smoothly connected. The valve cylinder 230 is located between the two ends of the second cylinder 210. The valve cylinder 230 opens to close the second connecting end 200. The length of the first elastic element 140 is shorter than its length in the detached state. The abutment block 220 extends into the first cylinder 110 and abuts against the valve block 130. The abutment block 220 and the valve block 130 are smoothly connected. The valve block 130 is located between the two ends of the first cylinder 110. The valve block 130 opens to close the first connecting end 100. The length of the second elastic element 240 is shorter than its length in the detached state. The first cylinder 110 and the second cylinder 210 are interconnected.

[0032] In the fluid connector 1 of this application, during assembly, it is only necessary to insert the first connecting end 100 into the second connecting end 200. The mechanical cooperation between the two can trigger the linkage: the first connecting end 100 pushes the valve cylinder 230 and the abutment block 220 pushes the valve block 130, simultaneously compressing the first elastic element 140 and the second elastic element 240, so that the valve block 130 opens the closure of the first connecting end 100 and the valve cylinder 230 opens the closure of the second connecting end 200, realizing the connection between the first cylinder 110 and the second cylinder 210. The connection process is simple and convenient. In the disassembled state of fluid connector 1, valve block 130 tightly seals the first connecting end 100 under the action of the first elastic element 140, and valve cylinder 230 simultaneously seals the second connecting end 200 and the abutment block 220 under the action of the second elastic element 240, preventing fluid leakage when not connected; in the assembled state of fluid connector 1, fluid only flows within the first cylinder 110 and the second cylinder 210, effectively preventing leakage and improving the safety of the heat dissipation system; both the first elastic element 140 and the second elastic element 240 are in a compressed state, and the elastic restoring force forms a continuous pre-tightening force on valve block 130 and valve cylinder 230 respectively, indirectly enhancing the tightness of the fit between the first connecting component 10 and the second connecting component 20, and improving the connection stability.

[0033] In the fluid connector 1 of this application, the adaptable flow channel features formed by the structural differences of the abutment ring 120, valve block 130, abutment block 220, and valve cylinder 230, combined with the smooth transition connection between the inner wall of valve cylinder 230 and the inner wall of the first cylinder 110, and the smooth transition connection between abutment block 220 and valve block 130, can produce the following significant technical effects: (1) Constructing a smooth and continuous flow channel to maximize the reduction of flow resistance. The abutment ring 120, as a fixed structure inside the first cylinder 110, has its inner wall connected to the inner wall of the first cylinder 110, guiding the fluid to enter the first cylinder 110 stably from upstream; the valve block 130 guides the fluid, and the abutment block 220 and valve block 130 are smoothly connected to form a continuous flow path, smoothly introducing the fluid into the liquid passage gap of the second cylinder 210; while the smooth transition connection between the inner wall of valve cylinder 230 and the inner wall of the first cylinder 110 eliminates the structural abrupt change at the docking point of the first connecting component 10 and the second connecting component 20. This multi-component relay-style smooth flow channel design avoids the generation of eddies and turbulence from the fluid inlet to the outlet, and eliminates dead volume (i.e., fluid stagnation area), significantly reducing the flow resistance of the fluid in the fluid connector 1. This not only increases the fluid circulation speed, but also reduces the energy consumption of the drive pump in the heat dissipation system, indirectly enhancing the heat dissipation response efficiency of the battery pack. (2) Reduce fluid impact and extend component lifespan. The smooth flow channel and transition connection design greatly reduce the impact of the fluid on the internal components of the fluid connector 1, which helps to reduce the fatigue wear of each component, extends the sealing performance retention time of the fluid connector 1, and improves the reliability of the fluid connector 1 in long-term outdoor use. In addition, the fluid can also flow in through the second cylinder 210 and flow out through the first cylinder 110, and the fluid connector 1 of this application can still produce the above-mentioned beneficial effects.

[0034] The first connecting component 10 and the second connecting component 20 will be described in detail below.

[0035] Please combine Figure 2 , Figure 3 , Figure 10 and Figure 12The first cylinder 110 includes a first sub-cylinder 111, a second sub-cylinder 112, a third sub-cylinder 113, and a fourth sub-cylinder 114. The first sub-cylinder 111 includes a small-diameter section 111a and a large-diameter section 111b connected to each other. Both the small-diameter section 111a and the large-diameter section 111b are cylindrical and coaxially connected, with the diameter of the large-diameter section 111b being larger than the diameter of the small-diameter section 111a. One end of the second sub-cylinder 112 is disposed within the large-diameter section 111b, meaning the outer wall of the second sub-cylinder 112 is not connected to the inner wall of the large-diameter section 111b. An abutment ring 120 is disposed within the end of the second sub-cylinder 112 located within the large-diameter section 111b, a valve block 130 is disposed within the end of the second sub-cylinder 112 located outside the large-diameter section 111b, and a first elastic element 140 is disposed within the second sub-cylinder 112. The third sub-tube 113 is fitted between the large-diameter section 111b and the second sub-tube 112, and the third sub-tube 113 is connected to the large-diameter section 111b.

[0036] The outer wall of the second sub-cylinder 112 located within the large-diameter section 111b extends outward to form a first abutment platform 112a. The first abutment platform 112a is located between the end face of the large-diameter section 111b and the end face of the third sub-cylinder 113, and abuts against the large-diameter section 111b and the third sub-cylinder 113 respectively. The third sub-cylinder 113 is located outside the large-diameter section 111b, and its outer wall extends outward to form a second abutment platform 113a. The second abutment platform 113a abuts against the end face of the large-diameter section 111b away from the small-diameter section 111a. The first abutment platform 112a and the second abutment platform 113a cooperate to achieve axial fixation of the second sub-cylinder 112, the third sub-cylinder 113, and the large-diameter section 111b, thereby preventing axial movement of the components.

[0037] The fourth sleeve 114 is fitted onto the outside of the large-diameter section 111b. (See also...) Figure 10 and Figure 12 The orthographic projection of the fourth sub-tube 114 onto the large-diameter section 111b partially coincides with the orthographic projection of the third sub-tube 113 onto the large-diameter section 111b. This arrangement, while ensuring the function of the fourth sub-tube 114, creates a compact nested structure of "inner layer-middle layer-outer layer" between the large-diameter section 111b, the third sub-tube 113, and the fourth sub-tube 114. The fourth sub-tube 114, through radial constraint, can suppress excessive radial displacement of the large-diameter section 111b under high-pressure fluid impact or vibration, improving the connection stability of the structure. The outer wall of the large-diameter section 111b extends outward to form a fourth abutment platform 111c. The end face of the fourth sub-tube 114 near the third sub-tube 113 abuts against the side of the fourth abutment platform 111c opposite to the second abutment platform 113a, thereby further enhancing the connection effect.

[0038] The third sub-sleeve 113 is threaded to the large-diameter section 111b, and the fourth sub-sleeve 114 is threaded to the large-diameter section 111b. Threaded connections simplify connection operations and reduce assembly and maintenance costs; threaded connections ensure uniform circumferential stress on components, controllable deformation, and guarantee connection stability and coaxiality; threaded connections also enhance sealing reliability and prevent fluid leakage.

[0039] The first sub-tube 111 is cavity-shaped, and the radial dimensions (inner and outer walls) of the small-diameter section 111a and the large-diameter section 111b are adjustable, allowing the fluid connector 1 of this application to have a radial fluctuation of ±6mm. The adjustable radial dimensions (inner and outer walls) of the small-diameter section 111a and the large-diameter section 111b can flexibly absorb coaxiality deviations during assembly, component machining errors, and radial displacement caused by vibration and extreme temperature differences (thermal expansion and contraction) during long-term operation of the outdoor energy storage system. This design avoids stress concentration caused by rigid connections, ensuring that all components maintain a stable fit, significantly improving connection stability in complex environments, avoiding sealing gaps, and significantly reducing the risk of fluid leakage.

[0040] Please combine Figure 10 and Figure 12 The inner wall of the first connecting end 100 (specifically, the end of the second sub-cylinder 112 located outside the large-diameter section 111b) extends inward to form a mating portion 112c. The valve block 130 includes an integrally formed connecting sub-portion 131 and a flow guiding sub-portion 132 that are interconnected. The connecting sub-portion 131 (via a sealing ring) is used to seal the connecting mating portion 112c. The connecting sub-portion 131 may be generally cylindrical or plate-shaped.

[0041] Please combine Figures 3 to 5 , Figure 10 and Figure 12 The flow guide section 132 is configured to first expand and then contract in the direction away from the connecting section 131, and the size of the end of the flow guide section 132 that connects to the connecting section 131 is larger than the size of the connecting section 131. As a result, the end of the flow guide section 132 that connects to the connecting section 131 can prevent the valve block 130 from disengaging from the first connecting end 100. The inner wall of the first connecting end 100 (i.e., the end of the second sub-cylinder 112 located outside the large-diameter section 111b) extends inward to form a limiting portion 112d. The limiting portion 112d is located on the side of the docking portion 112c near the flow guide sub-section 132. The limiting portion 112d and the docking portion 112c are smoothly connected. The shape of the limiting portion 112d is adapted to the shape of one end of the flow guide sub-section 132 connecting to the connecting sub-section 131. The limiting portion 112d is used to movably connect the peripheral sidewall of one end of the flow guide sub-section 132 connecting to the connecting sub-section 131. The limiting portion 112d is used to prevent the valve block 130 from detaching from the first cylinder 110. Based on the above configuration, the connection between the valve block 130 and the second sub-cylinder 112 is more stable, and the increase in flow resistance caused by the abrupt change in the shape of the inner wall of the second sub-cylinder 112 is avoided.

[0042] The peripheral sidewall of the flow guide section 132 is recessed to form at least two flow guide regions 132a. The length direction of the at least two flow guide regions 132a is parallel to the length direction of the flow guide section 132, and the at least two flow guide regions 132a are arranged circumferentially along the flow guide section 132. The at least two flow guide regions 132a can guide the fluid and also increase the flow space within the second sub-tube 112, resulting in better fluid flow.

[0043] Please combine Figure 3 , Figure 10 and Figure 12 The first elastic element 140 can be a spring. The inner wall of the first cylinder 110 (specifically the second sub-cylinder 112) is recessed outward to form an annular groove 112b. The length direction of the annular groove 112b is parallel to the circumferential direction of the first cylinder 110. The fluid connector 1 includes a sealing ring 300, which is disposed within the annular groove 112b (the sealing ring 300 can be made of EPDM rubber). The outer wall of the abutment ring 120 extends outward to form an annular protrusion 121 coaxial with it. The sealing ring 300 connects the abutment ring 120 and the annular protrusion 121 on the side opposite to the first connecting end 100. The first elastic element 140 abuts against the abutment ring 120 and the annular protrusion 121 on the side facing the first connecting end 100. The valve block 130 is recessed away from the first elastic element 140 to form an abutment groove 132b, and the first elastic element 140 abuts against the abutment groove 132b. Therefore, the connection between the first elastic element 140 and the abutment ring 120, and between the first elastic element 140 and the valve block 130, is relatively good, so the first elastic element 140 can play a better role, and the structural connection of the fluid connector 1 is relatively stable in both the disassembled and assembled states.

[0044] Please combine Figure 6 , Figure 7 , Figure 11 and Figure 12The second cylinder 210 includes a fifth sub-cylinder 211, a sixth sub-cylinder 212, and a seventh sub-cylinder 213. One end of the fifth sub-cylinder 211 is sleeved on the outside of one end of the sixth sub-cylinder 212. The inner wall of the portion of the fifth sub-cylinder 211 located outside and close to the sixth sub-cylinder 212 is recessed outward to form a connecting groove 211a. The side of the connecting groove 211a facing the sixth sub-cylinder 212 passes through the fifth sub-cylinder 211 so that the connecting groove 211a communicates with the end face of the sixth sub-cylinder 212. The outer wall of the portion of the sixth sub-cylinder 212 located outside the fifth sub-cylinder 211 extends outward to form a third abutment platform 212a. The end face of the fifth sub-cylinder 211 connected to the sixth sub-cylinder 212 abuts against the third abutment platform 212a. The seventh sub-cylinder 213 is sleeved on the outside of the third abutment platform 212a. The third abutment platform 212a of the sixth sub-cylinder 212 abuts against the end face of the fifth sub-cylinder 211, forming a rigid constraint on the axial displacement of the two, avoiding loosening of the connection caused by axial movement; the fifth sub-cylinder 211 is sleeved on the outside of the sixth sub-cylinder 212, forming a radial constraint structure of the outer layer wrapping the inner layer. Together with the seventh sub-cylinder 213 sleeved on the outer layer of the third abutment platform 212a, the radial fit of the three is further strengthened, which can effectively resist the radial deformation caused by outdoor temperature difference cycle (thermal expansion and contraction), and at the same time reduce the radial sway under high frequency vibration, ensuring the rigidity and stability of the overall structure of the second cylinder 210.

[0045] The sixth sub-cylinder 212 can also be cavity-shaped, and its radial dimensions (inner and outer walls) can float so that the fluid connector 1 of this application has a radial float of ±6 mm.

[0046] Please combine Figure 11 and Figure 12 One end of the abutment block 220 is located within the end of the sixth sub-cylinder 212 away from the fifth sub-cylinder 211, while the other end of the abutment block 220 extends beyond the end of the sixth sub-cylinder 212 that connects to the fifth sub-cylinder 211, and is connected to the end face of the sixth sub-cylinder 212 and the connecting groove 211a on opposite sides, respectively. One side of the abutment block 220 is rigidly connected to the end face of the sixth sub-cylinder 212 (axial positioning), and the other side is embedded in the connecting groove 211a of the fifth sub-cylinder 211 (radial constraint + axial auxiliary fixation), so that the abutment block 220 not only forms an integral rigid connection with the sixth sub-cylinder 212, but also forms a cooperative fixation with the fifth sub-cylinder 211 through the connecting groove 211a, significantly improving the installation stability of the abutment block 220 within the sixth sub-cylinder 212. The valve cylinder 230 is located within the end of the sixth sub-cylinder 212 away from the fifth sub-cylinder 211 and is movably connected to the sixth sub-cylinder 212 and the abutment block 220. The second elastic element 240 is located within the sixth sub-cylinder 212.

[0047] Please combine Figures 7 to 9 , Figure 11 and Figure 12The abutment block 220 includes an integrally formed connecting plate 221, a connecting frame, and a connecting ring 225 connected in sequence. The connecting plate 221 is located within the second connecting end 200 with a gap. The peripheral sidewall of the connecting plate 221 is used to seal the connecting valve cylinder 230. The two ends of the connecting frame are tapered inwards. The outer ring wall of the connecting ring 225 is fixedly sleeved on the inner wall of the second cylinder 210. The fixed connecting ring 225 provides stable support for the connecting frame and the connecting plate 221. The tapered structure of the connecting frame provides sufficient installation space for the second elastic element 240 (the second elastic element 240 is sleeved outside the abutment block 220) without interfering with fluid flow. The sealing surface of the connecting plate 221 is precisely matched with the moving stroke of the valve cylinder 230. The coaxiality of the integrally formed components ensures the coaxiality of the connecting plate 221, the connecting frame, the connecting ring 225, the second cylinder 210, and the valve cylinder 230, ensuring the continuity and smoothness of the flow channel. In addition, the tapered structure of the connecting frame creates a streamlined profile, which avoids eddies and dead volumes caused by structural abrupt changes, significantly reduces flow resistance, and improves fluid circulation speed and flow stability.

[0048] The connecting frame includes a connecting sub-block 222, a connecting rod 223, and a connecting plate 224 connected in sequence. The connecting sub-block 222 is conical, with its circular surface connected to the connecting plate 221 and its conical end connected to the connecting rod 223. The connecting plate 224 is triangular, with one corner connected to the connecting frame and the remaining two corners connected to opposite sides of the connecting ring 225. The differentiated structure of the connecting plate 221, connecting sub-block 222, connecting rod 223, connecting plate 224, and connecting ring 225 forms a continuous flow path of "annular gap inlet → conical guide → thin rod transition → triangular splitting → outlet diffusion," which is well-suited to the high-pressure fluid circulation requirements of the liquid cooling system. The flow path is free of abrupt structural changes such as right angles and steps, ensuring a stable flow field and significantly reducing overall flow resistance and energy consumption of the pump driven by the cooling system.

[0049] Please combine Figure 11 and Figure 12 The inner wall of the valve cylinder 230 gradually widens in the direction away from the second connecting end 200, thereby gradually increasing the fluid flow space and improving the flow effect. A notch 231, L-shaped, is provided at the end of the valve cylinder 230 opposite to the second connecting end 200. The notch 231 extends axially along the valve cylinder 230, and its length on the outer wall of the valve cylinder 230 is greater than its length on the inner wall. The notch 231 reduces the sliding friction resistance during the movement of the valve cylinder 230, making it easier for the valve cylinder 230 to be pushed by the first connecting end 200 during assembly and easier to spring back to its original position under the action of the second elastic element 240 during disassembly.

[0050] The fluid connector 1 of this application has no locking structure and relies on an external structure for locking. By adjusting the insertion depth of the first connecting end 100 and the second connecting end 200, and by the axial floating of the first elastic element 140 and the second elastic element 240, an axial floating of ±3mm can be achieved.

[0051] Please combine Figures 10 to 12 Sealing rings may be provided between the various components of the first connecting assembly 10 and the second connecting assembly 20 to enhance the sealing connection of the various components. Please refer to the attached drawings for details, which will not be described in detail here.

[0052] The above embodiments are only used to illustrate the present application and are not intended to limit it. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included within the protection scope of the present application.

Claims

1. A fluid connector, characterized in that, include: The first connecting assembly includes a first cylinder, an abutment ring, a valve block, and a first elastic element disposed inside the first cylinder and connected in sequence. The first cylinder includes a first connecting end, the valve block is movably connected to the first connecting end, and the abutment ring is fixedly connected to the first cylinder. as well as The second connecting assembly includes a second cylinder, an abutment block disposed within the second cylinder, a valve cylinder, and a second elastic member. The second cylinder includes a second connecting end. One end of the abutment block is located inside the second connecting end with a gap, and the other end of the abutment block is fixedly connected to the second cylinder. A liquid passage gap is formed between the abutment block and the second cylinder. The valve cylinder is movably sleeved between the second connecting end and the abutment block. The second elastic member is sleeved outside the abutment block, and both ends of the second elastic member are respectively connected to the end of the abutment block connected to the second cylinder and the valve cylinder. The fluid connector has a detached state and an assembled state. In the detached state, the valve block is sealed to the first connecting end under the push of the first elastic member, and the valve cylinder is sealed to the second connecting end and the abutment block under the push of the second elastic member. In the assembled state, the first connecting end is inserted into the second connecting end and abuts against the valve cylinder. The inner wall of the first connecting end and the inner wall of the valve cylinder are smoothly connected. The valve cylinder is located between the two ends of the second cylinder. The valve cylinder opens to close the second connecting end. The length of the first elastic member is shorter than its length in the detached state. The abutment block extends into the first cylinder and abuts against the valve block. The abutment block and the valve block are smoothly connected. The valve block is located between the two ends of the first cylinder. The valve block opens to close the first connecting end. The length of the second elastic member is shorter than its length in the detached state. The first cylinder and the second cylinder are in communication with each other.

2. The fluid connector according to claim 1, characterized in that, The first cylinder includes a first sub-cylinder, a second sub-cylinder, a third sub-cylinder, and a fourth sub-cylinder. The first sub-cylinder includes a small-diameter section and a large-diameter section connected to each other. One end of the second sub-cylinder is disposed within the large-diameter section. The third sub-cylinder is sleeved between the large-diameter section and the second sub-cylinder and connects to the large-diameter section. The outer wall of the end of the second sub-cylinder located within the large-diameter section extends outward to form a first abutment platform. The first abutment platform is located between the end face of the large-diameter section and the end face of the third sub-cylinder and abuts against the large-diameter section and the third sub-cylinder, respectively. The third sub-cylinder is partially located outside the large-diameter section, and its outer wall extends outward to form a second abutment platform. The second abutment platform abuts against the end face of the large-diameter section away from the small-diameter section. The fourth sub-cylinder is sleeved outside the large-diameter section. The orthographic projection of the fourth sub-cylinder onto the large-diameter section coincides with the orthographic projection of the third sub-cylinder onto the large-diameter section. The abutment ring is located inside the end of the second sub-tube within the large diameter section, the valve block is located inside the end of the second sub-tube outside the large diameter section, and the first elastic element is located inside the second sub-tube.

3. The fluid connector according to claim 2, characterized in that, The third sub-cylinder is threadedly connected to the large-diameter section, and the fourth sub-cylinder is threadedly connected to the large-diameter section.

4. The fluid connector according to claim 3, characterized in that, The first sub-cylinder is cavity-shaped, and the radial dimensions of the small-diameter section and the large-diameter section can float.

5. The fluid connector according to claim 1, characterized in that, The inner wall of the first connecting end extends inward to form a docking portion. The valve block includes an integrally formed connecting sub-part and a flow guiding sub-part connected to each other. The connecting sub-part is used to seal the docking portion. The flow guiding sub-part is arranged to first expand and then contract in the direction away from the connecting sub-part. The size of the end of the flow guiding sub-part connected to the connecting sub-part is larger than the size of the connecting sub-part. The peripheral sidewall of the flow guiding sub-part is concave to form at least two flow guiding areas. The length direction of the at least two flow guiding areas is parallel to the length direction of the flow guiding sub-part. The at least two flow guiding areas are arranged circumferentially along the flow guiding sub-part.

6. The fluid connector according to claim 5, characterized in that, The inner wall of the first connecting end extends inward to form a limiting part. The limiting part is located on the side of the docking part near the flow guide sub-part. The limiting part and the docking part are smoothly connected. The shape of the limiting part is adapted to the shape of the end of the flow guide sub-part that is connected to the connecting sub-part. The limiting part is used to movably connect the peripheral sidewall of the end of the flow guide sub-part that is connected to the connecting sub-part. The limiting part is used to prevent the valve block from detaching from the first cylinder.

7. The fluid connector according to claim 1, characterized in that, The inner wall of the first cylinder is recessed outward to form an annular groove, the length direction of which is parallel to the circumferential direction of the first cylinder. The fluid connector includes: A sealing ring is disposed in the annular groove. The outer wall of the abutment ring extends outward to form an annular protrusion coaxial with it. The sealing ring connects the abutment ring and the annular protrusion on the side away from the first connecting end. The first elastic member abuts against the abutment ring and the annular protrusion on the side facing the first connecting end. The valve block has an abutment groove formed in the recess of the first elastic element away from the first elastic element, and the first elastic element abuts against the abutment groove.

8. The fluid connector according to claim 1, characterized in that, The second cylinder includes a fifth sub-cylinder, a sixth sub-cylinder, and a seventh sub-cylinder. One end of the fifth sub-cylinder is sleeved outside one end of the sixth sub-cylinder. The inner wall of the portion of the fifth sub-cylinder located outside and close to the sixth sub-cylinder is recessed outward to form a connecting groove. The side of the connecting groove facing the sixth sub-cylinder passes through the fifth sub-cylinder so that the connecting groove communicates with the end face of the sixth sub-cylinder. The outer wall of the portion of the sixth sub-cylinder located outside the fifth sub-cylinder extends outward to form a third abutting platform. The end face of the fifth sub-cylinder connected to the sixth sub-cylinder abuts against the third abutting platform. The seventh sub-cylinder is sleeved outside the third abutting platform. One end of the abutment block is located in the end of the sixth sub-tube away from the fifth sub-tube, and the other end of the abutment block extends out of the end of the sixth sub-tube that connects to the fifth sub-tube and is connected to the end face of the sixth sub-tube and the connecting groove on opposite sides, respectively. The valve tube is located in the end of the sixth sub-tube away from the fifth sub-tube and is movably connected to the sixth sub-tube and the abutment block. The second elastic element is located inside the sixth sub-tube.

9. The fluid connector according to claim 1, characterized in that, The abutting block includes an integrally formed connecting plate, a connecting frame, and a connecting ring connected in sequence. The connecting plate is located in the second connecting end with a gap. The peripheral sidewall of the connecting plate is used to seal the valve cylinder. The two ends of the connecting frame are gradually tapered inward. The outer ring wall of the connecting ring is fixedly sleeved on the inner wall of the second cylinder. The connecting frame includes a connecting sub-block, a connecting rod, and a connecting sub-plate connected in sequence. The connecting sub-block is conical, and the circular surface of the connecting sub-block is connected to the connecting plate. The conical end of the connecting sub-block is connected to the connecting rod. The connecting sub-plate is triangular, and one corner end of the connecting sub-plate is connected to the connecting frame. The remaining two corner ends of the connecting sub-plate are connected to the opposite sides of the connecting ring.

10. The fluid connector according to claim 1, characterized in that, The inner wall of the valve cylinder is gradually widened in the direction away from the second connecting end; a notch is opened at the end of the valve cylinder opposite to the second connecting end, the notch is L-shaped, the notch extends along the axial direction of the valve cylinder, and the length of the notch on the outer wall of the valve cylinder is greater than its length on the inner wall of the valve cylinder.

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