Liquid injection port quick connection assembly

Abstract

The utility model discloses a liquid injection port quick connection assembly which comprises a valve, a first connector and a second connector, the first connector and the second connector are connected with the valve into a whole, and the valve comprises a valve body. A fixing part integrally formed with the second joint is arranged on the second joint; the two ends of the valve are integrally connected with the first connector and the second connector respectively so as to reduce detachable parts; according to the utility model, through the integrated structural design and process innovation, the inherent defects of the traditional split type liquid injection port joint are overcome. A plurality of original joints, fixed metal plates and valves are simplified into a single module, so that the leakage risk is greatly reduced, and the reliability of the liquid injection port quick connection assembly is remarkably improved; and meanwhile, impurity particles in the fluid can be efficiently filtered through a precise filter screen in the integrated flow channel, and a gasket-free welding sealing structure is matched, so that no leakage is ensured, and the overall failure rate of the quick connection assembly is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of liquid-cooled energy storage systems, and in particular to quick-connect components for liquid injection ports. Background Technology

[0002] The liquid filling port connector of a liquid-cooled energy storage system is a critical component ensuring efficient filling and sealing of the cooling medium, and its reliability directly affects the operational stability of the thermal management system. Currently, commercially available liquid filling port connectors typically employ a split design, mainly composed of five parts: a CQC20 quick-connect connector, a fixing sheet metal, a sealing gasket, a valve, and an SAE connector. This structure has the following technical drawbacks in practical applications:

[0003] 1. Existing split designs require multiple independent components to be connected sequentially via threads or welding. The assembly process involves multiple thread tightening and welding operations. Cumulative tolerances between components can easily lead to coaxiality deviations, requiring repeated adjustments to the mounting angle of the fixed sheet metal to adapt to the interface, significantly increasing assembly time and labor costs.

[0004] 2. Each component relies on a sealing gasket to achieve end face sealing. Under frequent temperature alternation conditions, the sealing gasket is prone to creep and loosening, resulting in micro-leakage at the interface.

[0005] 3. Low space utilization: The split structure occupies a large amount of space. Utility Model Content

[0006] This utility model addresses the shortcomings of existing technologies by providing a quick-connect assembly for the injection port.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a quick-connect assembly for the injection port, comprising a valve and a first connector and a second connector integrally connected to the valve, wherein the valve comprises a valve body;

[0008] The second connector is provided with a fixing part integrally formed therewith;

[0009] The valve is integrally connected to the first connector and the second connector at both ends to reduce the number of detachable parts.

[0010] In the above scheme, preferably, a filter screen is provided between the first connector and the valve.

[0011] In the above scheme, preferably, the valve body and the first connector are welded together as one unit.

[0012] In the above scheme, preferably, the valve body and the second connector are integrally formed, and the forming method is integral precision casting.

[0013] In the above scheme, preferably, the fixing part is located between the valve body and the second connector, and the valve body, the fixing part and the second connector are integrally precision cast.

[0014] In the above scheme, preferably, one end of the first connector is provided with a first cavity, one end of the valve body is provided with a second cavity connected to the first cavity, and the filter screen is provided in the first cavity or the second cavity.

[0015] In the above scheme, preferably, one end of the first connector is provided with a first connecting part that cooperates with the valve body, and the valve body is provided with a second connecting part, and the first connecting part and the second connecting part are welded together.

[0016] In the above scheme, preferably, the outer edge of the first connecting part is provided with a first welding groove, and the second connecting part is provided with a second welding groove; the first welding groove and the second welding groove cooperate to form an annular welding groove.

[0017] In the above scheme, preferably, the valve body is provided with a valve core, the valve core is connected to a valve stem, and the valve stem passes through the valve body wall and is connected to a handle.

[0018] In the above scheme, preferably, the valve body is provided with a limiting ring that cooperates with the valve core, a first damping ring is provided between one side of the valve core and the limiting ring, a second damping ring is provided on the other side, and a limiting nut that abuts against the second damping ring is provided in the valve body.

[0019] The beneficial effects of this utility model are: through integrated structural design and process innovation, this utility model solves the inherent defects of traditional split-type liquid injection port connectors; it simplifies the original multiple connectors, fixed sheet metal and valves into a single module, which greatly reduces the risk of leakage and significantly improves the reliability of the liquid injection port quick-connect assembly.

[0020] Meanwhile, the precision filter screen inside the integrated flow channel can efficiently remove impurities and particles in the fluid, and the gasket-free welded sealing structure ensures no leakage and reduces the overall failure rate of the quick-connect assembly. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0022] Figure 2 This is a cross-sectional view of the present invention.

[0023] Figure 3 This utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments: See below Figures 1-3 .

[0025] The quick-connect assembly for the liquid inlet includes a valve 1 and a first connector 2 and a second connector 3 that are integrated with the valve 1. The valve 1 includes a valve body 101, one end of which is connected to the first connector 2 and the other end of which is connected to the second connector 3.

[0026] In this embodiment, the first connector 2 can be an SEA connector, which is fixed to one end of the valve body 101 by welding. Specifically, the first connector 2 is provided with a first connecting part 202 at the end near the valve body 101, and a first cavity 201 is provided at the inner end of the first connecting part 202. The valve body 101 is provided with a second connecting part 103 at the end that is connected to the first connecting part 202, and a second cavity 102 is provided at the inner end of the second connecting part 103. After the first connector 2 is welded to the valve body 101, the first cavity 201 and the second cavity 102 are connected.

[0027] A filter screen 4 is provided between the first connector 2 and the valve body 101 to filter impurities in the fluid entering the valve body 101. Specifically, the filter screen 4 can be set in either the first cavity 201 or the second cavity 102. The first cavity 201 is connected to the inner hole of the first connector 2, and the second cavity 102 is connected to the inner hole of the valve body 101.

[0028] The outer edge of the first connecting portion 202 is provided with a first welding groove 203. The bottom diameter of the first welding groove 203 is smaller than the outer edge diameter of the first connecting portion 202. The first welding groove 203 is located at the end of the first connector 2 near the valve body 101 and connects with the end face of the valve body 101. Figures 1-3 As shown, the second connecting part 202 is provided with a second welding groove 104. The second welding groove 104 is located at the end of the valve body 101 near the first connector 2 and is in contact with the end face of the first connector 2. After the first connector 2 and the valve body 101 are connected, the first welding groove 203 and the second welding groove 204 are connected to form an annular welding groove 5. At this time, the splice is welded in the welding groove 5 so that the flux fills the annular welding groove 5. After grinding, the weld is connected to the outer edge of the first connector 2 and the valve body 101 as a whole and is ground smooth, thereby realizing the integral welding of the first connector 2 and the valve body 101.

[0029] The first connector 2 and the valve body 101 are made of the same material, which makes the two more integrated after welding, achieving gasket-free sealing and reducing leakage points and failure points.

[0030] The second connector 3 and the valve body 101 are integrally formed by precision casting. The second connector 3 can be a CQC20 quick connector. A fixing part 301 is integrally formed on the outer wall of the second connector 3 near the valve body 101. The fixing part 301 is provided with several bolt holes. The valve body 101 and the second connector 3 are installed and fixed by bolts. That is, the existing CQC20, fixing sheet metal, sealing gasket and valve are simplified into an integral precision casting structure.

[0031] The fixing part 301 is located between the valve body 101 and the second connector 3. The valve body 101, the fixing part 301 and the second connector 3 are integrally precision cast. After the above connection and forming method, the two ends of the valve 1 are respectively connected to the first connector 2 and the second connector 3 in an integral manner, reducing the number of detachable parts and greatly simplifying the structure. The quick-connect assembly of the liquid injection port is connected as a whole through three parts, reducing the number of failure points.

[0032] The valve body 101 is provided with a valve core 6, and the valve core 6 is connected to a valve stem 601. The valve stem 601 passes through the wall of the valve body 101 and is connected to a handle 602 outside the valve body 101. A sealing ring is provided between the valve stem 601 and the valve body 101.

[0033] The valve core 6 has a valve hole, and the valve body 101 has a limiting ring 603 that cooperates with the valve core 6. The limiting ring 603 is fixed in the through hole of the valve body 101 on the side near the second connector 3. The limiting ring 603 is integrally formed with the valve body 101. A first damping ring 604 is provided between one side of the valve core 6 and the limiting ring 603, and a second damping ring 605 is provided on the other side. The valve body 101 has a limiting nut 606 that abuts against the second damping ring 605. The limiting nut 606 is located on the side of the valve core 6 near the first connector 2, and the limiting nut 606 and the through hole in the valve body 101 are adjustablely fixed by a threaded connection.

[0034] During assembly, first, the first damping ring 605 is installed into the integrally formed valve body 101 and the second connector 3, and abuts against the limiting ring 603. Then, the valve core 6 is installed into the valve body 101, and the valve stem 601 is installed onto the valve core 6 from top to bottom. Then, the valve stem 602 is installed on the upper end of the valve stem 601. Next, the second damping ring 605 is installed into... Figure 2 On the left side of the valve core 6, the second damping ring 606 is fixed with a fiber nut 606; then the filter screen 4 is placed in the second cavity 102, the first connector 2 is connected to the left end of the valve body 101 and welded in the annular welding groove 5, and the outer wall is polished after welding to make it smooth, so that the entire liquid injection port quick connection assembly is integrated.

[0035] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model 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 this utility model.

Claims

1. A quick connect assembly for a liquid inlet, characterized by: The utility model provides a valve (1) and first joint (2) and second joint (3) are connected into an organic whole with valve (1), the valve (1) includes valve body (101); The second joint (3) is provided with a fixed part (301) integrally formed with it; The valve (1) is integrally connected with the first joint (2) and the second joint (3) at both ends to reduce detachable parts.

2. The fill port quick connect assembly of claim 1, wherein: The first joint (2) is provided with a filter screen (4) between the valve (1).

3. The fill port quick connect assembly of claim 1, wherein: The valve body (101) is integrally welded with the first joint (2).

4. The fill port quick connect assembly of claim 1, wherein: The valve body (101) is integrally formed with the second joint (3), and the forming mode is integrally precision casting.

5. The fill port quick connect assembly of claim 1, wherein: The fixed part (301) is arranged between the valve body (101) and the second joint (3), and the valve body (101), the fixed part (301) and the second joint (3) are integrally precision cast.

6. The fill port quick connect assembly of claim 2, wherein: One end of the first joint (2) is provided with a first cavity (201), one end of the valve body (101) is provided with a second cavity (102) connected with the first cavity (201), and the filter screen (4) is arranged in the first cavity (201) or the second cavity (102).

7. The fill port quick connect assembly of claim 1, wherein: One end of the first joint (2) is provided with a first connecting part (202) matched with the valve body (101), the valve body (101) is provided with a second connecting part (103), and the first connecting part (202) and the second connecting part (103) are integrally welded.

8. The fill port quick connect assembly of claim 7, wherein: The outer edge of the first connecting part (202) is provided with a first welding groove (203), the second connecting part (103) is provided with a second welding groove (104), and the first welding groove (203) and the second welding groove (104) form an annular welding groove (5) after cooperation.

9. The liquid fill port quick connect assembly of any of claims 1-8, wherein: The valve body (101) is provided with a valve core (6), the valve core (6) is connected with a valve rod (601), and the valve rod (601) is connected with a handle (602) after penetrating the wall of the valve body (101).

10. The fill port quick connect assembly of claim 9, wherein: The valve body (101) is provided with a limiting ring (603) matched with the valve core (6), a first damping ring (604) is arranged between one side of the valve core (6) and the limiting ring (603), a second damping ring (605) is arranged on the other side, and the valve body (101) is provided with a limiting nut (606) abutting against the second damping ring (605).

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