Condenser of air conditioning system for agricultural machinery

Abstract

The application relates to the technical field of agricultural machine air conditioners, and discloses a condenser of an agricultural machine air conditioning system, which comprises a first condensing sheet, a second condensing sheet arranged on one side of the first condensing sheet and arranged in parallel with the first condensing sheet, and a heat dissipation fan arranged on the side, away from the first condensing sheet, of the second condensing sheet and arranged with the air direction of the heat dissipation fan facing the first condensing sheet. The following technical effects can be achieved: the high-pressure gaseous refrigerant discharged from the compressor can be preliminarily cooled into liquid state by the first condensing sheet, and the low-temperature and low-pressure gaseous refrigerant after heat absorption in the evaporator flows into the second condensing sheet, so that the air flowing through the second condensing sheet can be pre-cooled, and the cooling efficiency can be further improved when the cooled air flows through the first condensing sheet.

Description

Technical Field

[0001] This application relates to the field of agricultural machinery air conditioning technology, for example to a condenser for an agricultural machinery air conditioning system. Background Technology

[0002] Currently, the cooling principle of vehicle air conditioning is to utilize the circulation and conversion of refrigerant in different states within the system to release or absorb heat to meet the comfort requirements of the cab. In agricultural machinery air conditioning systems, the condenser, as a key heat exchange component, cools the high-temperature and high-pressure gaseous refrigerant discharged from the compressor, converting it into a liquid state, thereby preparing for the subsequent evaporation and heat absorption process.

[0003] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0004] The condensers in existing agricultural machinery air conditioning systems have low heat exchange efficiency, resulting in unsatisfactory cooling effects and failing to meet the demands of the agricultural machinery driving environment for efficient and stable operation of the air conditioning system. Utility Model Content

[0005] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0006] This disclosure provides a condenser for an agricultural machinery air conditioning system to solve the problem of low heat dissipation efficiency of condenser fins.

[0007] In some embodiments, the condenser of the agricultural machinery air conditioning system includes: a first condenser fin; a second condenser fin disposed on one side of the first condenser fin, and the first condenser fin and the second condenser fin are arranged relatively parallel to each other; a cooling fan disposed on the side of the second condenser fin away from the first condenser fin, and the cooling fan is directed towards the first condenser fin; one end of the first condenser fin is connected to one end of the compressor, the other end of the first condenser fin is connected to one end of the evaporator, and the other end of the evaporator is connected to one end of the second condenser fin, and the second condenser fin is connected to one end of the compressor.

[0008] In some embodiments, the first condenser includes a first condenser tube and a second condenser tube, and a first heat exchange tube is arranged in parallel between the first condenser tube and the second condenser tube; the second condenser includes a third condenser tube and a fourth condenser tube, and a second heat exchange tube is arranged in parallel between the third condenser tube and the fourth condenser tube.

[0009] In some embodiments, a high-pressure air inlet is provided at one end of the first condenser tube, a high-pressure air outlet is provided at the other end of the first condenser tube, and a first baffle is provided in the middle of the first condenser tube.

[0010] In some embodiments, a low-pressure air inlet is provided at one end of the fourth condenser tube, a low-pressure air outlet is provided at the other end of the fourth condenser tube, and a second baffle is provided in the middle of the fourth condenser tube.

[0011] In some embodiments, one end of the compressor is connected to a high-pressure intake pipe, which is connected to the high-pressure inlet. The other end of the compressor is provided with a low-pressure outlet pipe, which is connected to the low-pressure outlet. One end of the evaporator is connected to a high-pressure outlet pipe, which is connected to the high-pressure outlet. The other end of the evaporator is provided with a low-pressure intake pipe, which is connected to the low-pressure inlet.

[0012] In some embodiments, a connecting block is provided between the first condenser plate and the second condenser plate.

[0013] In some embodiments, an expansion valve is connected to both the high-pressure outlet pipe and the low-pressure inlet pipe, and a drying bottle is provided on the high-pressure outlet pipe between the high-pressure outlet and the expansion valve.

[0014] In some embodiments, the first heat exchange tube and the second heat exchange tube are hollow tubular structures, and the first heat exchange tube and the second heat exchange tube are flat plate-like structures.

[0015] The condenser of the agricultural machinery air conditioning system provided in this embodiment can achieve the following technical effects:

[0016] By setting up a first condenser and a second condenser in parallel, the first condenser can initially cool the high-pressure gaseous refrigerant discharged from the compressor into a liquid state. The low-temperature, low-pressure gaseous refrigerant that has been vaporized and absorbed heat in the evaporator flows into the second condenser. In this way, the air can be pre-cooled when it flows through the second condenser. The cooled air can further improve the cooling efficiency when it flows through the first condenser, thereby achieving efficient cooling and recycling of the refrigerant.

[0017] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0018] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0019] Figure 1 This is a schematic diagram of the condenser structure of the agricultural machinery air conditioning system provided in this embodiment;

[0020] Figure 2 This is a schematic diagram of the structure of the first and second condenser plates provided in the embodiments of this disclosure;

[0021] Figure 3 This is a schematic cross-sectional view of the first condenser fin provided in an embodiment of this disclosure;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the second condenser plate provided in an embodiment of this disclosure.

[0023] Figure label:

[0024] 100. First condenser tube; 101. Second condenser tube; 102. First heat exchange tube; 103. High-pressure inlet; 104. High-pressure outlet; 105. First baffle; 200. Third condenser tube; 201. Fourth condenser tube; 202. Second heat exchange tube; 203. Low-pressure inlet; 204. Low-pressure outlet; 205. Second baffle; 300. Cooling fan; 400. Compressor; 401. High-pressure inlet pipe; 402. Low-pressure outlet pipe; 500. Evaporator; 501. High-pressure outlet pipe; 502. Low-pressure inlet pipe; 600. Connecting block; 700. Expansion valve; 701. Dryer bottle Detailed Implementation

[0025] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0026] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0027] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0028] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0029] Unless otherwise stated, the term "multiple" means two or more.

[0030] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0031] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0033] Combination Figure 1-4 As shown in the figure, this disclosure provides a condenser for an agricultural machinery air conditioning system, comprising: a first condenser fin; a second condenser fin disposed on one side of the first condenser fin, and the first condenser fin and the second condenser fin are arranged relatively parallel to each other; a cooling fan 300 disposed on the side of the second condenser fin away from the first condenser fin, the cooling fan 300 being directed towards the first condenser fin; one end of the first condenser fin is connected to one end of a compressor 400, the other end of the first condenser fin is connected to one end of an evaporator 500, and the other end of the evaporator 500 is connected to one end of the second condenser fin, the second condenser fin being connected to one end of the compressor 400.

[0034] Using the condenser of the agricultural machinery air conditioning system provided in this embodiment, the compressor 400 can pressurize the refrigerant. The pressurized refrigerant is then input into the first condenser fin, where heat exchange occurs. This process cools the refrigerant within the first condenser fin, causing the high-pressure gaseous refrigerant to condense into a high-pressure liquid. The heat generated by the condensation of the refrigerant in the first condenser fin is further cooled through heat exchange. The cooled refrigerant then flows into the evaporator 500 for depressurized evaporation. The evaporator 500 absorbs heat and provides cooling, thereby achieving the cooling effect of the air conditioning system. The refrigerant inside absorbs heat and then turns back into a gaseous state. This low-temperature, low-pressure gaseous refrigerant enters the second condenser fin. The low-temperature, low-pressure gaseous refrigerant in the second condenser fin can exchange heat with the outside air, thus cooling the outside air. The cooling fan 300 allows the air to flow through the second condenser fin for heat exchange and cooling before flowing through the first condenser fin. The air flowing through the second condenser fin can be cooled by the low-temperature, low-pressure gaseous refrigerant, and the cooled air can then cool the first condenser fin. This further improves the heat exchange efficiency of the first condenser fin and reduces the energy consumption of the entire system.

[0035] Optionally, the first condenser includes a first condenser tube 100 and a second condenser tube 101, with a first heat exchange tube 102 arranged in parallel between the first condenser tube 100 and the second condenser tube 101; the second condenser includes a third condenser tube 200 and a fourth condenser tube 201, with a second heat exchange tube 202 arranged in parallel between the third condenser tube 200 and the fourth condenser tube 201.

[0036] The first condenser fin includes a first condenser tube 100 and a second condenser tube 101. A first heat exchange tube 102, arranged in parallel, is positioned between the first condenser tube 100 and the second condenser tube 101. The design of the first heat exchange tube 102 significantly increases the refrigerant flow area, thereby improving heat exchange efficiency. The first condenser tube 100 and the second condenser tube 101 are connected by the first heat exchange tube 102, allowing the refrigerant to undergo sufficient heat exchange within the first heat exchange tube 102 as it flows between them, further enhancing condensation efficiency. A second heat exchange tube 202 is also provided between the third condenser tube 200 and the fourth condenser tube 201 in the second condenser fin. This structural design not only enhances the refrigerant flow area but also effectively improves the heat exchange capacity of the second condenser fin. Through these structural optimizations, the refrigerant flows more evenly within the condenser, avoiding the efficiency reduction problem caused by excessive local thermal resistance, thus effectively improving the overall operating efficiency and stability of the agricultural machinery air conditioning system.

[0037] Optionally, a high-pressure air inlet 103 is provided at one end of the first condenser tube 100, a high-pressure air outlet 104 is provided at the other end of the first condenser tube 100, and a first partition 105 is provided in the middle of the first condenser tube 100.

[0038] In this way, the high-pressure inlet 103 is used to receive high-temperature and high-pressure gaseous refrigerant from the compressor 400. After the refrigerant enters the first condenser tube 100, it is diverted to part of the first heat exchange tube 102 by the first partition 105, and then collected by the second condenser tube 101 and led to the high-pressure outlet 104 at the other end of the first condenser tube 100, thereby realizing the efficient circulation of refrigerant.

[0039] Optionally, a low-pressure air inlet 203 is provided at one end of the fourth condenser tube 201, a low-pressure air outlet 204 is provided at the other end of the fourth condenser tube 201, and a second baffle 205 is provided in the middle of the fourth condenser tube 201.

[0040] In this way, the low-pressure inlet 203 is used to receive the low-temperature, low-pressure gaseous refrigerant from the evaporator 500. After the refrigerant enters one end of the fourth condenser tube 201, it is diverted to part of the second heat exchange tube 202 through the second baffle 205. The refrigerant in the second heat exchange tube 202 enters the third condenser tube 200, and is then led out through the second heat exchange tube 202 on the other side of the second baffle 205 to the low-pressure outlet 204 at the other end of the fourth condenser tube 201, thus completing the circulation of the refrigerant.

[0041] Optionally, one end of the compressor 400 is connected to a high-pressure intake pipe 401, which is connected to the high-pressure intake port 103. The other end of the compressor 400 is provided with a low-pressure outlet pipe 402, which is connected to the low-pressure outlet port 204. One end of the evaporator 500 is connected to a high-pressure outlet pipe 501, which is connected to the high-pressure outlet port 104. The other end of the evaporator 500 is provided with a low-pressure intake pipe 502, which is connected to the low-pressure intake port 203.

[0042] In this way, the high-pressure intake pipe 401 delivers the high-temperature, high-pressure gaseous refrigerant output from the compressor 400 to the high-pressure intake port 103 of the first condenser pipe 100. After being diverted by the first baffle 105, it undergoes preliminary condensation in the first heat exchange pipe 102. Then, it is delivered from the high-pressure outlet port 104 of the first condenser pipe 100 to the evaporator 500 via the high-pressure outlet pipe 501. The refrigerant in the evaporator 500 is depressurized and vaporized, absorbing heat to become a low-temperature, low-pressure gaseous refrigerant. The heat absorption of the evaporator 500 can effectively cool the interior of the agricultural machinery cab. The low-temperature, low-pressure gaseous refrigerant then enters the low-pressure intake port 203 of the fourth condenser pipe 201 through the low-pressure intake pipe 502. Under the action of the second baffle 205, it is diverted to the second heat exchange pipe 202, where it further completes heat exchange and then flows back to the other end of the fourth condenser pipe 201. It is then discharged through the low-pressure outlet port 204 to the low-pressure outlet pipe 402 and delivered back to the compressor 400, completing the entire refrigerant circulation process.

[0043] Optionally, a connecting block 600 is provided between the first condenser plate and the second condenser plate.

[0044] In this way, the connecting block 600 is used to fix and support the first condenser fin and the second condenser fin, ensuring that a stable gap is maintained between them, thereby forming a uniform heat dissipation channel and improving condensation efficiency. In this way, the cooling fan 300 on the side of the second condenser fin can blow the air cooled by the second condenser fin onto the first condenser fin, further enhancing the heat dissipation effect of the first condenser fin, thereby improving the overall heat dissipation capacity.

[0045] Optionally, an expansion valve 700 is connected to both the high-pressure outlet pipe 501 and the low-pressure inlet pipe 502, and a drying bottle 701 is provided on the high-pressure outlet pipe 501 between the high-pressure outlet 104 and the expansion valve 700.

[0046] In this way, the desiccant 701 is used to filter impurities and absorb moisture in the refrigerant, preventing blockage of the expansion valve 700 or damage to system components. This ensures that the refrigerant is dry and clean before entering the evaporator 500, thereby improving system stability and service life. The expansion valve 700 effectively controls the refrigerant flow, allowing it to fully absorb heat and complete the vaporization process in the evaporator 500, further ensuring efficient system operation.

[0047] Optionally, the first heat exchange tube 102 and the second heat exchange tube 202 are hollow tubular structures, and the first heat exchange tube 102 and the second heat exchange tube 202 are flat plate-like structures.

[0048] In this way, the flat design can effectively increase the contact area between the refrigerant and the pipe wall, thereby improving the heat exchange efficiency. Both the outer walls of the first heat exchange pipe 102 and the second heat exchange pipe 202 are provided with finned structures. The fins can further enhance the heat dissipation effect, allowing the refrigerant to release heat more quickly during the flow of the pipe, thereby improving the overall condensation efficiency of the system.

[0049] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A condenser for an agricultural machinery air conditioning system, characterized in that, include: First condenser plate; The second condenser plate is disposed on one side of the first condenser plate, and the first condenser plate and the second condenser plate are arranged relatively parallel to each other; A cooling fan (300) is disposed on the side of the second condenser plate away from the first condenser plate, and the cooling fan (300) is directed toward the first condenser plate; One end of the first condenser is connected to one end of the compressor (400), the other end of the first condenser is connected to one end of the evaporator (500), and the other end of the evaporator (500) is connected to one end of the second condenser, and the second condenser is connected to one end of the compressor (400).

2. The condenser of the agricultural machinery air conditioning system according to claim 1, characterized in that, The first condenser includes a first condenser tube (100) and a second condenser tube (101), and a first heat exchange tube (102) is arranged in parallel between the first condenser tube (100) and the second condenser tube (101). The second condenser includes a third condenser tube (200) and a fourth condenser tube (201), and a second heat exchange tube (202) is arranged in parallel between the third condenser tube (200) and the fourth condenser tube (201).

3. The condenser of the agricultural machinery air conditioning system according to claim 2, characterized in that, The first condenser tube (100) has a high-pressure air inlet (103) at one end and a high-pressure air outlet (104) at the other end. A first partition (105) is provided in the middle of the first condenser tube (100).

4. The condenser of the agricultural machinery air conditioning system according to claim 3, characterized in that, The fourth condenser tube (201) is provided with a low-pressure air inlet (203) at one end and a low-pressure air outlet (204) at the other end. A second baffle (205) is provided in the middle of the fourth condenser tube (201).

5. The condenser of the agricultural machinery air conditioning system according to claim 4, characterized in that, One end of the compressor (400) is connected to a high-pressure air inlet pipe (401), which is connected to the high-pressure air inlet (103). The other end of the compressor (400) is provided with a low-pressure air outlet pipe (402), which is connected to the low-pressure air outlet (204). One end of the evaporator (500) is connected to a high-pressure outlet pipe (501), and the other end of the high-pressure outlet pipe (501) is connected to the high-pressure outlet (104). The other end of the evaporator (500) is provided with a low-pressure inlet pipe (502), and the low-pressure inlet pipe (502) is connected to the low-pressure inlet (203).

6. The condenser of the agricultural machinery air conditioning system according to claim 1, characterized in that, A connecting block (600) is provided between the first condenser plate and the second condenser plate.

7. The condenser of the agricultural machinery air conditioning system according to claim 5, characterized in that, An expansion valve (700) is connected to both the high-pressure outlet pipe (501) and the low-pressure inlet pipe (502), and a drying bottle (701) is installed on the high-pressure outlet pipe (501) between the high-pressure outlet (104) and the expansion valve (700).

8. The condenser of the agricultural machinery air conditioning system according to claim 2, characterized in that, The first heat exchange tube (102) and the second heat exchange tube (202) are hollow tubular structures, and the first heat exchange tube (102) and the second heat exchange tube (202) are flat plate structures.

Images