Receiver dryer and automobile air conditioning system

Abstract

The utility model provides a receiver-drier and an automobile air conditioning system. The receiver-drier provided by the utility model is used for a condenser of an automobile air conditioning system, and the receiver-drier comprises a drier main body which is provided with a hollow slender tubular structure extending along an axis; the end covers are mounted at the upper end and the lower end of the dryer main body; the drying part is contained in the dryer body, and the cross section, perpendicular to the axis, of the dryer body is in a rectangular circle shape. According to the receiver-drier, the cross section (namely, the cross section perpendicular to the axial direction X) of the drier body is arranged to be in the rectangular circle shape, the liquid storage space of the receiver-drier can be effectively increased, and then the refrigeration performance of a condenser used in cooperation with the receiver-drier is improved.

Description

Technical Field

[0001] The present disclosure relates to a liquid storage drier and an automobile air conditioning system comprising the liquid storage drier, and in particular to a liquid storage drier with a relatively large volume. Background Art

[0002] The automobile air conditioning system includes components such as condenser, receiver-drier, compressor and evaporator. As the main heat exchanger of the conventional engine cooling system, the condenser needs to ensure the reliability of the product while ensuring its heat dissipation performance. The receiver-drier fluid is connected to the condenser to absorb moisture in the refrigerant and filter impurities in the refrigerant to ensure the refrigeration performance of the condenser and prevent impurities from entering the condenser and causing pipeline blockage, thereby reducing the reliability of the product.

[0003] Limited by the effective installation space in the vehicle body, most of the existing liquid storage dryers have a cylindrical structure, and / or include double walls such as an outer wall and an inner wall. The liquid storage space is small, resulting in low refrigeration performance of the condenser and an inability to provide good refrigeration performance for the vehicle. In addition, the existing liquid storage dryer has a complex structure and a high preparation cost.

[0004] Therefore, those skilled in the art are committed to developing a new type of liquid storage dryer to solve the above-mentioned defects of the prior art. Summary of the invention

[0005] The purpose of the present disclosure is to provide a liquid storage dryer, which can effectively increase the liquid storage space of the liquid storage dryer by setting the cross-section of the dryer body (i.e., the cross-section perpendicular to the axial direction X) to a rectangular shape, thereby improving the refrigeration performance of the condenser used therewith.

[0006] The present disclosure provides a liquid storage dryer, which includes: a dryer body, which has a hollow, slender tubular structure extending along an axis; end covers installed to the upper and lower ends of the dryer body; and a drying part accommodated in the dryer body, wherein the dryer body has a rectangular circular shape in a cross section perpendicular to the axis.

[0007] The present disclosure adopts the above-mentioned structural design of the dryer body to enable the liquid storage dryer to have a larger volume to accommodate more fluid (such as refrigerant), thereby improving the refrigeration performance of the condenser in the automobile air-conditioning system.

[0008] In one or more embodiments, the dryer body has only a single wall.

[0009] The present invention uses the above-mentioned design of the dryer body to simplify the structure of the liquid storage dryer, facilitate manufacturing, and reduce costs.

[0010] In one or more embodiments, the dryer body is provided with an inlet and an outlet near the lower end thereof, wherein the outlet is closer to the lower end of the dryer body than the inlet.

[0011] The present invention discloses the above-mentioned design of the inlet and outlet of the dryer body, so that the liquid fluid entering the liquid storage-drier from the inlet can flow toward the lower end of the liquid storage-drier under the action of gravity, and can flow out of the liquid storage-drier from the outlet after storing a certain amount of liquid fluid.

[0012] In one or more embodiments, the liquid storage dryer further comprises a filter disposed in the dryer body, wherein the fluid entering the liquid storage dryer from the inlet is filtered by the filter and then reaches the outlet.

[0013] In one or more embodiments, the filter is located between the inlet and the lower end, and the outlet faces a side wall of the filter.

[0014] The present invention can filter impurities in the fluid by setting a filter, and retain the impurities inside the filter, so as to avoid the fluid flowing out of the liquid storage dryer from containing impurities and clogging the downstream pipeline, thereby improving the reliability of the product.

[0015] In one or more embodiments, the filter has an oblong shape in a cross section perpendicular to the axis.

[0016] The shape design of the filter disclosed herein can make the filter fit the inner wall of the dryer body in the circumferential direction, thereby preventing the unfiltered fluid entering from the inlet from directly flowing to the outlet through the gap between the dryer body and the filter.

[0017] In one or more embodiments, the liquid storage dryer further comprises a bracket, wherein the bracket is fixed to the dryer body.

[0018] In one or more embodiments, the liquid storage dryer further comprises a mounting block, wherein the mounting block is fixed to an outer surface of the dryer body, and the inlet and the outlet penetrate through the mounting block.

[0019] In one or more embodiments, the dryer body, the bracket and the mounting block are integrally formed parts or welded formed parts.

[0020] The present invention can avoid installation and save assembly time by arranging the above components as an integrally formed piece.

[0021] The present disclosure also provides an automobile air conditioning system, comprising: the aforementioned liquid storage drier; and a condenser, wherein the condenser is in fluid communication with the liquid storage drier. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a perspective view of a liquid storage dryer according to an embodiment of the present disclosure;

[0023] Figure 2 is a three-dimensional view of a liquid storage dryer according to an embodiment of the present disclosure at another viewing angle;

[0024] Figure 3 is an exploded view of a liquid storage dryer according to an embodiment of the present disclosure;

[0025] Figure 4 is a cross-sectional view of a liquid storage dryer according to an embodiment of the present disclosure;

[0026] Figure 5 is a schematic diagram of a cross section of a dryer body according to an embodiment of the present disclosure;

[0027] Figure 6 is a schematic diagram of a cross section of a dryer body according to an embodiment of the present disclosure, wherein the cross section of the dryer body in the prior art and the limited in-vehicle installation space are shown;

[0028] Figure 7 is a perspective view of an automobile air conditioning system according to an embodiment of the present disclosure;

[0029] Figure 8 FIG. 1 is a top view of an automobile air conditioning system according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0030] The following describes the implementation of the present disclosure through specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification.

[0031] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings attached to this specification are only used to match the contents disclosed in the specification for the understanding and reading of those skilled in the art, and are not used to limit the limiting conditions for the implementation of the present disclosure, so they have no substantial technical significance. Any structural modification, change in proportional relationship, or adjustment of size, without affecting the effects and purposes that can be achieved by the present disclosure, should still fall within the scope of the technical contents disclosed by the present disclosure. At the same time, the terms such as "on" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present disclosure. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present disclosure without substantially changing the technical contents.

[0032] In order to more clearly understand the present disclosure, embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0033] The present disclosure provides a liquid storage dryer 1 for an automobile air conditioning system, in particular, connected to a condenser in the automobile air conditioning system. Figures 1 to 4 The liquid storage dryer 1 comprises a dryer body (10), an end cover 20 and a drying part 40. The dryer body 10 may generally have a hollow elongated tubular structure extending along an axis X, and the dryer body 10 has an oblong shape in a cross section perpendicular to the axis X. The oblong shape described in the present disclosure refers to a shape in which the four right angles of a rectangle are replaced by arcs (e.g. Figure 5 and Figure 6 As shown), the diameter 2R of the arc may be less than or equal to the width W of the rectangle, wherein when the diameter 2R of the arc is equal to the width W of the rectangle, both ends of the oblong are exactly semicircular, such as Figure 5 As shown; when the diameter 2R of the arc is smaller than the width W of the rectangle, both ends of the rectangular circle are composed of two arcs and a straight line connecting the two arcs, as shown in Figure 6 As shown. Moreover, the length L of the rectangular shape described in the present disclosure is not equal to its width W. Such a configuration allows the liquid storage dryer 1 to have a larger volume to accommodate more fluid (such as refrigerant), thereby improving the refrigeration performance of the condenser in the automobile air conditioning system.

[0034] Please continue to see Figure 3 and Figure 4 The dryer body 10 is a single-wall structure. Compared with the double-wall structure including the inner wall and the outer wall in the prior art, the liquid storage dryer 1 described in the present disclosure has a simple structure, is easy to manufacture, and can effectively reduce costs. The dryer body 10 includes an upper end (also referred to as a first end) and a lower end (also referred to as a second end). The end cover 20 includes a top cover 21 (also referred to as a first end cover 21) and a bottom cover (also referred to as a second end cover 22), which are respectively sealed and installed at the upper end and the lower end of the dryer body 10 to prevent fluid leakage. In one embodiment, the top cover 21 and the bottom cover 22 cooperate with the inner wall of the dryer body 10, and can be fixed to the dryer body 10 by, for example, welding, to block the two ends of the dryer body 10. Of course, the present disclosure is not limited to this, as long as the end cover 20 is sealed and installed at the upper end and the lower end of the dryer body 10. The dryer body 10 contains a drying part 40, for example, the drying part 40 is a drying bag containing a desiccant. The drying unit 40 can be placed in the dryer body 10 from the upper end or the lower end of the dryer body 10 to absorb moisture in the fluid (eg, refrigerant) entering the receiver-drier 1 .

[0035] See also Figure 2 and Figure 4The dryer body 10 is provided with an inlet 11 and an outlet 12 near its lower end, for the inflow and outflow of fluid respectively. The outlet 12 is located between the inlet 11 and the bottom cover 22, that is, the outlet 12 is closer to the lower end of the dryer body 10 than the inlet 11, so that the gas-liquid mixed fluid (for example, the gas-liquid mixed refrigerant) can enter the liquid storage dryer 1 from the inlet 11, wherein the liquid fluid in the gas-liquid mixed fluid will flow toward the lower end of the liquid storage dryer 1 under the action of gravity, and the gaseous fluid will flow toward the upper end of the liquid storage dryer 1, so that the liquid fluid is stored in the liquid storage dryer 1 until the height of the liquid fluid reaches the height of the outlet 12, that is, the fluid exceeding the outlet 12 will flow out of the liquid storage dryer 1 from the outlet 12; and the gaseous fluid flowing toward the upper end will reach the top of the liquid storage dryer 1 through the drying part 40, that is, the gaseous fluid will fully contact the drying part 40, so that it can effectively absorb the moisture in the gaseous fluid, and the drying part 40 will also absorb the moisture in the liquid refrigerant, thereby improving the purity of the refrigerant, thereby improving the refrigeration performance of the automobile air-conditioning system.

[0036] Please continue to see Figure 3 and Figure 4 The liquid storage dryer 1 may further include a filter 30 to filter impurities in the fluid and retain the impurities inside the filter 30, so as to prevent the fluid flowing out of the liquid storage dryer 1 from clogging the downstream pipeline due to impurities, thereby improving the reliability of the product. The filter 30 is disposed in the dryer body 10, and the fluid entering the liquid storage dryer 1 from the inlet 11 can reach the outlet 12 only after being filtered by the filter 30, so as to ensure that the fluid flowing out is the filtered fluid.

[0037] Specifically, the filter 30 may be a hollow structure with two openings at both ends and a filtering structure (such as a filter mesh) disposed on the side wall. Figure 3As shown. The filter 30 has a rectangular shape in a cross section perpendicular to the axis X, and the size of the rectangular shape is roughly the same as the size of the inner wall of the dryer body 10 in the cross section, so that it can be fixed and attached to the inner wall of the dryer body 10, preventing the unfiltered fluid entering from the inlet 11 from directly flowing to the outlet 12 through the gap between the dryer body 10 and the filter 30. The filter 30 is located between the inlet 11 and the lower end / bottom cover 22 of the dryer body 10, and the outlet 12 of the dryer body 10 is directly opposite to the side wall of the filter 30. Such a setting allows the liquid fluid flowing in from the inlet 11 to fall into the filter 30 through the upper opening of the filter 30, and after the height of the liquid fluid reaches the height of the outlet 12, it will first be filtered by the side wall of the filter 30 before it can flow out of the liquid storage dryer 1 from the outlet 12, which effectively ensures that the fluid flowing out of the outlet 12 is filtered and impurity-free fluid, and avoids the blockage of its downstream pipeline due to impurities contained in the outflowing fluid. A drying part 40 is disposed between the filter 30 and the top cover 21, or the drying part 40 is supported by the side wall of the filter 30 and is located above the filter 30, and the position of the inlet 11 of the dryer body 10 corresponds to the lower end of the drying part 40 (such as Figure 4 As shown), the gaseous fluid in the gas-liquid mixed fluid flowing in from the inlet 11 can reach the top of the liquid storage dryer 1 roughly through the entire drying section 40, that is, it fully contacts the drying section 40, so that it can effectively absorb the moisture in the gaseous fluid. At the same time, the drying section 40 will also absorb the moisture in the liquid refrigerant, thereby improving the purity of the refrigerant and thus improving the refrigeration performance of the automobile air-conditioning system.

[0038] Please return to see Figure 1 and Figure 3 , the liquid storage dryer 1 may also include a bracket 50, which is fixed on the dryer body 10, used to support the dryer body 10 and fix the dryer body 10 on other components (such as the vehicle body) through the bracket 50. In one embodiment, the bracket 50 and the dryer body 10 may be an integrally formed part, for example, they may be formed by an extrusion molding process to avoid installation and save assembly time. However, the present disclosure is not limited to the above form. In other embodiments, the dryer body 10, the bracket 50 and the mounting block 60 may also be welded parts, and their assembly method or the number of brackets or the number of mounting blocks may be changed according to the specific application example. For example, the bracket 50 may also be fixed on the dryer body 10 by welding or brazing, and the present disclosure does not limit the specific structure of the bracket 50, as long as it can support the liquid storage dryer 1 and install it to other components. In addition, the present disclosure is mainly described with two brackets 50, but is not limited thereto. For example, the liquid storage dryer 1 may also include only one bracket or three, four, etc. brackets, which mainly depends on the installation situation and installation requirements.

[0039] Please continue to see Figure 3and Figure 4 The liquid storage dryer 1 may further include a mounting block 60. The mounting block 60 is fixed to the outer surface of the dryer body 10, and is used to fix the dryer body 10 to the liquid collecting pipe of the condenser. Specifically, the mounting block 60 may be roughly a protrusion extending along the axis X direction, and a connection portion 61 that is matched and connected (for example, welded or brazed) with the liquid collecting pipe of the condenser is provided at both ends of the protrusion. In one embodiment, the mounting block 60 and the dryer body 10 may be an integrally formed part, for example, they may be formed by an extrusion molding process to avoid installation and save assembly time. However, the present disclosure is not limited to the above-mentioned form. For example, the mounting block 60 may also be fixed to the dryer body 10 by welding or brazing, as long as the dryer body 10 can be fixedly fitted to the liquid collecting pipe of the condenser. In one embodiment, the inlet 11 and the outlet 12 of the dryer body 10 can penetrate the mounting block 60, especially the connecting portion 61 of the mounting block 60, so that when the connecting portion 61 is cooperatively connected (for example, welded or brazed) to the liquid collecting pipe of the condenser, the liquid storage dryer 1 can be connected to the condenser fluid through the inlet 11 and the outlet 12, and leakage of the fluid at the connection between the two can be avoided.

[0040] See also Figure 6 , which discloses a cross section of a dryer body 10 when a liquid storage dryer 1 is installed in a limited installation space in a vehicle, wherein a, b, c, d, e represent the vehicle body or other components in the vehicle body, and the space defined by a, b, c, d, e represents the installation space in the vehicle. As shown in the figure, the installation space in the vehicle is very limited due to the limitation of the vehicle body or other components a, b, c, d, e. In this case, the dryer body 10 with a rectangular cross section described in the present disclosure is installed in the above installation space (such as Figure 6 ), the liquid storage dryer 1 can have a larger liquid storage space / volume, can store more fluid, and can effectively improve the refrigeration performance of the condenser. Figure 6 The liquid storage drier 1 (shown by the dotted line in the figure) is installed in the above installation space, and its volume is obviously smaller than that of the liquid storage drier with a rectangular cross section, resulting in low refrigeration performance of the condenser, which cannot provide good refrigeration performance for the vehicle. It can be seen that in the same installation space, compared with the prior art, the liquid storage drier 1 of the above structure disclosed in the present invention can provide a larger liquid storage space, which is conducive to improving the efficiency of the condenser used in conjunction with it.

[0041] Although the liquid storage dryer 1 of the above embodiment of the present disclosure is described by taking the condenser used in the automobile air conditioning system as an example, the present disclosure is not limited thereto. For example, the liquid storage dryer 1 can also be used in other occasions where impurities need to be filtered and moisture needs to be absorbed.

[0042] In addition, the above-mentioned embodiment of the present disclosure is described by taking the upper and lower ends of the mounting block 60 as an example in which the mounting block 60 respectively has connecting parts 61, however, the present disclosure is not limited to this. For example, the mounting block 60 can also be provided with connecting parts 61 at other positions, and the number of connecting parts 61 can be one or more, which mainly depends on the specific installation situation and the installation position.

[0043] The present disclosure also provides an automobile air conditioning system 3, see Figure 7 and Figure 8 The automobile air conditioning system 3 includes the aforementioned liquid receiver-drier 1 and a condenser 2 in fluid communication with the liquid receiver-drier 1. In order to fit into the limited installation space in the vehicle, in the top view of the automobile air conditioning system 3, the extension direction of the liquid receiver-drier 1 may be inclined to the extension direction of the condenser 1, but the present disclosure is not limited thereto. For example, the extension directions of the two may be the same, which mainly depends on the specific location and size of the installation space.

[0044] The following mainly combines Figure 7 To illustrate the fluid flow in the condenser 2 and the liquid storage dryer 1 described in the automobile air conditioning system 3.

[0045] The high-temperature and high-pressure gaseous refrigerant compressed by the compressor is Figure 7 The condenser inlet on the upper left side enters the condenser 2, passes through the pipes of the condenser 2 and exchanges heat with the air to convert the high-temperature and high-pressure gaseous refrigerant into a gas-liquid mixed refrigerant, and then the gas-liquid mixed refrigerant enters the liquid storage dryer 1 through the collecting pipe on the right side of the condenser 2 and the inlet 11 of the dryer body 10 connected thereto, wherein the liquid refrigerant in the gas-liquid mixed refrigerant flows toward the lower end of the liquid storage dryer 1 under the action of gravity, and the gaseous refrigerant flows toward the upper end of the liquid storage dryer 1, so that the liquid refrigerant is stored in the liquid storage dryer 1 until the height of the liquid refrigerant reaches the height of the outlet 12, and the liquid refrigerant will flow from the outlet 12 to the collecting pipe on the right side of the condenser 2 and flow into the subcooling circuit of the condenser 2. The drying part 40 in the liquid storage dryer 1 will fully absorb the moisture in the refrigerant flowing through the liquid storage dryer 1, improve the purity of the refrigerant, and further improve the refrigeration performance of the condenser 2. At the same time, the filter 30 in the liquid storage dryer 1 will filter the impurities in the refrigerant and retain the impurities inside the filter 30, so as to avoid the fluid flowing out of the liquid storage dryer 1 from containing impurities and clogging the pipes of the condenser 2, thereby improving the reliability of the product.

[0046] In summary, the present disclosure provides a liquid storage dryer, which can effectively increase the liquid storage space of the liquid storage dryer by setting the cross section of the dryer body (i.e., the cross section perpendicular to the axial direction X) to be rectangular, thereby improving the refrigeration performance of the condenser used with the liquid storage dryer. In addition, the present disclosure also provides an automobile air conditioning system, which can effectively improve the refrigeration performance of the condenser and improve the product reliability of the condenser by including the liquid storage dryer with the above structure and the condenser in fluid communication with the condenser.

[0047] The above describes exemplary implementations of the liquid storage dryer and automobile air-conditioning system provided by the present disclosure with reference to preferred embodiments. However, it can be understood by those skilled in the art that, without departing from the concept of the present disclosure, various modifications and variations can be made to the above-mentioned specific embodiments, and various technical features and structures proposed in the present disclosure can be combined in various ways without exceeding the protection scope of the present disclosure, which is determined by the attached claims.

Claims

1. A liquid storage dryer (1), characterized in that: The liquid storage dryer (1) comprises: A dryer body (10), the dryer body (10) having a hollow elongated tubular structure extending along an axis (X); End covers (20) mounted to the upper and lower ends of the dryer body (10); and A drying part (40) is accommodated in the dryer body (10), The dryer body (10) has a rectangular circular shape in a cross section perpendicular to the axis (X).

2. The liquid storage dryer (1) according to claim 1, characterized in that: The dryer body (10) has only a single wall.

3. The liquid storage dryer (1) according to claim 2, characterized in that: The dryer body (10) is provided with an inlet (11) and an outlet (12) near its lower end, wherein the outlet (12) is closer to the lower end of the dryer body (10) than the inlet (11).

4. The liquid storage dryer (1) according to claim 3, characterized in that: The liquid storage dryer (1) further comprises a filter (30) which is arranged in the dryer body (10) so that the fluid entering the liquid storage dryer (1) from the inlet (11) is filtered by the filter (30) and then reaches the outlet (12).

5. The liquid storage dryer (1) according to claim 4, characterized in that: The filter (30) is located between the inlet (11) and the lower end, and the outlet (12) faces the side wall of the filter (30).

6. The liquid storage dryer (1) according to claim 5, characterized in that: The filter (30) has an oblong shape in a cross section perpendicular to the axis (X).

7. The liquid storage dryer (1) according to any one of claims 3 to 6, characterized in that: The liquid storage dryer (1) further comprises a bracket (50), wherein the bracket (50) is fixed on the dryer body (10).

8. The liquid storage dryer (1) according to claim 7, characterized in that: The liquid storage dryer (1) further comprises a mounting block (60), wherein the mounting block (60) is fixed on the outer surface of the dryer body (10), and the inlet (11) and the outlet (12) penetrate the mounting block (60).

9. The liquid storage dryer (1) according to claim 8, characterized in that: The dryer body (10), the bracket (50) and the mounting block (60) are integrally formed parts or welded formed parts.

10. An automobile air conditioning system (3), characterized in that: The automobile air conditioning system (3) comprises: The liquid storage dryer (1) according to any one of claims 1 to 9; and A condenser (2), wherein the condenser (2) is fluidically connected to the liquid storage dryer (1).

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