Liquid reservoir

Abstract

The utility model provides a liquid reservoir which comprises a cylinder body with openings at two ends, a bottom side seal head is connected to the opening at one end of the cylinder body in a sealing mode, a top side seal head is connected to the opening at the other end of the cylinder body in a sealing mode, a first liquid outlet and a refrigerant inlet are formed in the bottom side seal head, an inlet pipe is arranged on the refrigerant inlet, and a second liquid outlet is formed in the top side seal head. A first liquid outlet is formed in the top side seal head, a second liquid outlet is formed in the top side seal head, the inlet pipe extends towards one side close to the top side seal head, a liquid outlet pipe is arranged at the second liquid outlet, the liquid outlet pipe extends towards one side close to the bottom side seal head, and the inlet height of the liquid outlet pipe and the inlet height of the first liquid outlet are lower than the outlet height of the inlet pipe. No matter in the direction of a battery thermal management system or an in-vehicle air conditioning system, the pipelines of the battery thermal management system and the in-vehicle air conditioning system do not need to be provided with more bends due to opposite directions, so that the tube pass flow resistance of a refrigerant can be obviously reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal management, in particular to a liquid storage device. Background Art

[0002] Liquid receivers are widely used in thermal management systems to separate the gas-liquid two-phase refrigerant introduced therein to ensure that the liquid refrigerant can flow into the valve of the thermal management system. The utility model patent with the announcement number CN 220187141U discloses a liquid receiver, which includes a shell and a head sealed at one end of the shell. The refrigerant inlet and outlet of the liquid receiver are both formed on the head, and the refrigerant outlet is provided. In order to guide the separated liquid refrigerant to the battery thermal management system and the in-vehicle air conditioning system, a three-way pipe is generally connected at the refrigerant outlet. However, since the battery thermal management system and the in-vehicle air conditioning system are generally in opposite directions, the refrigerants in the battery thermal management system and the in-vehicle air conditioning system in the prior art are both drawn from the head position at one end of the shell, resulting in more bends in one of the pipes and a larger flow resistance in the refrigerant pipe. Utility Model Content

[0003] The liquid storage device designed in the present invention can at least partially solve the above problems.

[0004] The utility model aims to provide a liquid storage device, comprising a cylinder with openings at both ends, wherein a bottom side head is sealedly connected to the opening at one end of the cylinder, and a top side head is sealedly connected to the opening at the other end of the cylinder, wherein a first liquid outlet and a refrigerant inlet are constructed on the bottom side head, an inlet pipe is provided on the refrigerant inlet, a second liquid outlet is constructed on the top side head, the inlet pipe extends toward a side close to the top side head, a liquid outlet pipe is provided at the second liquid outlet, the liquid outlet pipe extends toward a side close to the bottom side head, and the inlet heights of the liquid outlet pipe and the first liquid outlet are lower than the outlet height of the inlet pipe.

[0005] In some embodiments, a first filter is provided at the inlet of the first liquid outlet.

[0006] In some embodiments, a first boss is formed on the inner end surface of the bottom head, the first liquid outlet is formed on the top surface of the first boss and penetrates to the outside of the bottom head along the thickness direction of the bottom head, and the first filter is inserted into the inlet of the first liquid outlet.

[0007] In some embodiments, a second filter is provided at the inlet of the liquid outlet pipe.

[0008] In some embodiments, the second filter includes a barrel-shaped frame with flow holes, a filter screen assembled in the barrel-shaped frame, and a pressure ring assembled on the cup mouth of the barrel-shaped frame. The filter screen is arranged around the inner cylinder wall of the barrel-shaped frame and its two ends are clamped by the bottom plate of the barrel-shaped frame and the pressure ring. The second filter is connected to the liquid outlet pipe via the pressure ring.

[0009] In some embodiments, a plurality of convex strips are provided on the inner wall surface of the bottom plate of the barrel-shaped frame, and the plurality of convex strips are arranged at intervals along the circumferential direction of the barrel-shaped frame and form positioning gaps with the inner cylinder wall of the barrel-shaped frame, and one axial end of the filter is located in the positioning gap.

[0010] In some embodiments, the side of each of the convex strips facing away from the bottom plate of the barrel-shaped frame abuts against the inlet end surface of the liquid outlet pipe.

[0011] In some embodiments, a second boss is formed on the inner end surface of the top side head, the second liquid outlet is formed on the bottom surface of the second boss and penetrates to the outside of the top side head along the thickness direction of the top side head, and the liquid outlet pipe is inserted in the second liquid outlet.

[0012] In some embodiments, a drying bag is provided on the inlet pipe; and / or a mounting bracket is welded on the outer wall surface of the cylinder.

[0013] In some embodiments, the axes of the first liquid outlet, the second liquid outlet and the refrigerant inlet are parallel to each other and are staggered; and / or, the inlet pipe is welded or riveted to the refrigerant inlet.

[0014] The liquid storage device of the utility model is provided with a liquid outlet on the bottom cover and the top cover of the liquid storage device respectively, so that corresponding external pipelines are connected in the upper and lower directions of the cylinder at the same time. No matter it is for the direction of the battery thermal management system or the direction of the in-vehicle air-conditioning system, the pipelines of both do not need to be provided with many bends due to opposite directions, which can significantly reduce the flow resistance of the refrigerant pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the liquid storage container of the utility model.

[0016] Figure 2 It is a bottom view of the liquid storage device of the utility model in the use state.

[0017] Figure 3 yes Figure 2 Sectional view of AA.

[0018] Figure 4 It is a top view of the liquid storage device of the utility model in the use state.

[0019] Figure 5 yes Figure 4 Cross-sectional view of BB.

[0020] Figure 6 yes Figure 1 Schematic diagram of the three-dimensional structure of the liquid reservoir after omitting the cylinder.

[0021] Figure 7 yes Figure 5 Schematic diagram of the three-dimensional structure of the second filter.

[0022] Figure 8 yes Figure 7 Cross-sectional view of .

[0023] In the figure:

[0024] 1. Cylinder; 21. Bottom side head; 211. First liquid outlet; 212. Refrigerant inlet; 2121. Inlet pipe; 213. First boss; 22. Top side head; 221. Second liquid outlet; 222. Liquid outlet pipe; 223. Second boss; 31. First filter; 32. Second filter; 321. Barrel-shaped frame; 322. Filter; 323. Pressing ring; 324. Raised strip; 4. Drying bag; 5. Mounting bracket. DETAILED DESCRIPTION

[0025] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. In the drawings, the thickness of regions and layers are exaggerated for clarity. The same reference numerals in the drawings represent the same or similar structures, and thus their detailed description will be omitted.

[0026] The described features, structures or characteristics may be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present invention. However, those skilled in the art will appreciate that the technical solution of the present invention may be practiced without one or more of the specific details, or other methods, components, materials, etc. may be used. In other cases, known structures, materials or operations are not shown or described in detail to avoid blurring the various aspects of the present invention.

[0027] The following example is a liquid storage device of the utility model. This example is only a part of the embodiments of the utility model, but the protection scope of the utility model is not limited to this. All other embodiments obtained by ordinary technicians in this field without creative work should be included in the protection scope of the utility model.

[0028] Please refer to Figures 1 to 8 According to an embodiment of the utility model, a liquid storage device is provided, comprising a cylinder 1 with openings at both ends, wherein a bottom end seal 21 is sealedly connected to the opening at one end of the cylinder 1, and a top end seal 22 is sealedly connected to the opening at the other end of the cylinder 1. It can be understood that the bottom end seal 21, the top end seal 22 and the cylinder 1 together surround and form a gas-liquid separation space for the entering mixed refrigerant, wherein the bottom end seal 21 is configured with a first liquid outlet 211 and a refrigerant inlet 212 (i.e., an inlet for the gas-liquid two-phase mixed refrigerant) The refrigerant inlet 212 is provided with an inlet pipe 2121, and the top side head 22 is configured with a second liquid outlet 221, the inlet pipe 2121 extends toward a side close to the top side head 22, and the second liquid outlet 221 is provided with a liquid outlet pipe 222, and the liquid outlet pipe 222 extends toward a side close to the bottom side head 21 so as to be below the liquid level of the liquid refrigerant separated from the cylinder 1, and the inlet heights of the liquid outlet pipe 222 and the first liquid outlet 211 are lower than the outlet height of the inlet pipe 2121.

[0029] In this technical solution, a liquid outlet is respectively arranged on the bottom head 21 and the top head 22 of the liquid storage device, so that the corresponding external pipelines are connected in the upper and lower directions of the cylinder 1 at the same time. Regardless of whether it is in the direction of the battery thermal management system or the direction of the in-vehicle air-conditioning system, the pipelines of both do not need to be set with many bends due to opposite directions, which can significantly reduce the flow resistance of the refrigerant pipe.

[0030] In some embodiments, a first filter 31 is provided at the inlet of the first liquid outlet 211, and a second filter 32 is provided at the inlet of the liquid outlet pipe 222 to filter the refrigerant entering the first liquid outlet 211 and the liquid outlet pipe 222. In a specific embodiment, a first boss 213 is formed on the inner end surface of the bottom head 21, the first liquid outlet 211 is formed on the top surface of the first boss 213 and penetrates to the outside of the bottom head 21 along the thickness direction of the bottom head 21, the first filter 31 is inserted into the inlet of the first liquid outlet 211, and by providing the first boss 213 extending toward the inner space of the cylinder 1 and providing the first liquid outlet 211 on the first boss 213, the reliable insertion of the first filter 31 can be ensured, and the structure is more compact.

[0031] See also Figure 7 and Figure 8 As shown, in some embodiments, the second filter 32 includes a barrel-shaped frame 321 with a flow hole (not shown in the figure), a filter 322 assembled in the barrel-shaped frame 321, and a pressure ring 323 assembled at the cup mouth of the barrel-shaped frame 321. The filter 322 is arranged around the inner wall of the barrel-shaped frame 321 and its two ends are clamped by the bottom plate of the barrel-shaped frame 321 and the pressure ring 323. The second filter 32 is sleeved with the liquid outlet pipe 222 via the pressure ring 323. It can be understood that the flow area of ​​the aforementioned flow hole should be as large as possible to minimize its blocking of the filter mesh of the filter 322, thereby ensuring a larger filtering capacity of the filter 322.

[0032] See Figure 8 As shown, a plurality of convex strips 324 are provided on the inner wall surface of the bottom plate of the barrel-shaped skeleton 321. The plurality of convex strips 324 are arranged at intervals along the circumferential direction of the barrel-shaped skeleton 321 and form positioning gaps with the inner cylinder wall of the barrel-shaped skeleton 321. An axial end of the filter screen 322 is located in the positioning gap. By arranging a plurality of convex strips 324 on the bottom plate, a positioning gap of a certain depth can be formed between the protruding height thereof and the inner wall, thereby achieving reliable and stable positioning of an axial end of the filter screen 322.

[0033] In another preferred embodiment, each of the convex strips 324 abuts against the inlet end face of the liquid outlet pipe 222 on the side facing away from the bottom plate of the barrel-shaped frame 321, thereby forming an inlet channel of the liquid outlet pipe 222 between the pipe mouth of the liquid outlet pipe 222 and the bottom plate of the barrel-shaped frame 321, and the structure is simple and compact.

[0034] In some embodiments, a second boss 223 is formed on the inner end surface of the top side head 22, the second liquid outlet 221 is formed on the bottom surface of the second boss 223 and penetrates to the outside of the top side head 22 along the thickness direction of the top side head 22, the liquid outlet pipe 222 is inserted into the second liquid outlet 221, and the second boss 223 can increase the insertion fitting length between the liquid outlet pipe 222 and the top side head 22, thereby further improving the assembly reliability of the liquid outlet pipe 222.

[0035] In some embodiments, a desiccant bag 4 is provided on the inlet pipe 2121 to absorb moisture in the refrigerant. The desiccant bag 4 can be connected to the inlet pipe 2121 by, for example, being tied with a cable tie.

[0036] In some embodiments, a mounting bracket 5 is welded on the outer wall surface of the cylinder 1, and a corresponding connecting hole (not marked in the figure) is constructed on the mounting bracket 5. In this technical solution, the mounting bracket 5 is connected to the cylinder 1 instead of being connected to the bottom head 21 or the top head 22, which can reduce the area occupied by the head and optimize the layout path of the external pipeline.

[0037] In some embodiments, the axes of the first liquid outlet 211, the second liquid outlet 221, and the refrigerant inlet 212 are parallel to each other and are staggered to prevent interference between the filters.

[0038] In some embodiments, the inlet pipe 2121 is welded or riveted to the refrigerant inlet 212 to ensure a reliable sealing connection between the inlet pipe 2121 and the bottom head 21 .

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A liquid storage container, characterized in that: The invention comprises a cylinder (1) with openings at both ends, wherein a bottom end seal (21) is sealedly connected to the opening at one end of the cylinder (1), and a top end seal (22) is sealedly connected to the opening at the other end of the cylinder (1), wherein a first liquid outlet (211) and a refrigerant inlet (212) are configured on the bottom end seal (21), an inlet pipe (2121) is provided on the refrigerant inlet (212), and a second liquid outlet (221) is configured on the top end seal (22), wherein the inlet pipe (2121) extends toward a side close to the top end seal (22), a liquid outlet pipe (222) is provided at the second liquid outlet (221), and the liquid outlet pipe (222) extends toward a side close to the bottom end seal (21), and the inlet heights of the liquid outlet pipe (222) and the first liquid outlet (211) are lower than the outlet height of the inlet pipe (2121).

2. The liquid reservoir according to claim 1, characterized in that A first filter (31) is provided at the inlet of the first liquid outlet (211).

3. The liquid reservoir according to claim 2, characterized in that A first boss (213) is formed on the inner end surface of the bottom end cap (21), the first liquid outlet (211) is formed on the top surface of the first boss (213) and penetrates along the thickness direction of the bottom end cap (21) to the outside of the bottom end cap (21), and the first filter (31) is inserted into the inlet of the first liquid outlet (211).

4. The liquid reservoir according to claim 1, characterized in that A second filter (32) is provided at the inlet of the liquid outlet pipe (222).

5. The liquid reservoir according to claim 4, characterized in that The second filter (32) comprises a barrel-shaped frame (321) with a flow hole, a filter screen (322) assembled in the barrel-shaped frame (321), and a pressure ring (323) assembled on the cup mouth of the barrel-shaped frame (321); the filter screen (322) is arranged around the inner cylinder wall of the barrel-shaped frame (321) and its two ends are clamped by the bottom plate of the barrel-shaped frame (321) and the pressure ring (323); the second filter (32) is sleeved with the liquid outlet pipe (222) via the pressure ring (323).

6. The liquid reservoir according to claim 5, characterized in that A plurality of convex strips (324) are provided on the inner wall surface of the bottom plate of the barrel-shaped frame (321); the plurality of convex strips (324) are arranged at intervals along the circumferential direction of the barrel-shaped frame (321) and form positioning gaps with the inner cylinder wall of the barrel-shaped frame (321); an axial end of the filter screen (322) is located in the positioning gap.

7. The liquid reservoir according to claim 6, characterized in that The side of each convex strip (324) facing away from the bottom plate of the barrel-shaped frame (321) contacts the inlet end surface of the liquid outlet pipe (222).

8. The liquid reservoir according to claim 1, characterized in that A second boss (223) is formed on the inner end surface of the top side seal head (22); the second liquid outlet (221) is formed on the bottom surface of the second boss (223) and penetrates along the thickness direction of the top side seal head (22) to the outside of the top side seal head (22); and the liquid outlet pipe (222) is inserted into the second liquid outlet (221).

9. The liquid reservoir according to claim 1, characterized in that The inlet pipe (2121) is provided with a drying bag (4); and / or a mounting bracket (5) is welded on the outer wall surface of the cylinder (1).

10. The liquid reservoir according to claim 1, characterized in that The axes of the first liquid outlet (211), the second liquid outlet (221) and the refrigerant inlet (212) are parallel to each other and are staggered; and / or the inlet pipe (2121) is welded or riveted to the refrigerant inlet (212).

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