Compressor assembly and air conditioning unit

Abstract

The utility model provides a compressor assembly and an air conditioning unit. The compressor assembly comprises a compressor body, and an air suction end is arranged on the compressor body. And a cooling structure. According to the compressor assembly and the air conditioning unit, the air inlet and the air outlet of the cooling structure are connected to the air suction end of the compressor, and negative pressure values generated by the air suction end of the compressor at the air inlet and the air outlet are different through the distance difference between the air inlet and the air suction end and the distance difference between the air outlet and the air suction end. According to the negative pressure difference value, refrigerants can enter the air inlet and are discharged through the air outlet, so that reliable work of the cooling structure can be guaranteed, the refrigerant amount of the cooling structure can be dynamically adjusted along with the working efficiency of the compressor, the cooling efficiency of the cooling structure can be dynamically adjusted, and the working efficiency of the compressor is improved. The problem that the cooling capacity of a cooling structure in the prior art is too large is avoided, and the working reliability and the service life of an electronic element cooled by the cooling structure are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of compression equipment, in particular to a compressor component and an air-conditioning unit. Background Art

[0002] As a converter, a VFD generates a certain amount of power during operation. Due to differences in the components used and the control methods used, the heat generated by VFDs of different specifications varies. Data indicates that VFD power consumption is generally 3-5% of its capacity. The inverter portion accounts for approximately 50%, the rectifier and DC circuit approximately 40%, and the control and protection circuits 5-15%. The compressor is a core component of a water-cooled screw chiller system, and unit performance is adjusted by varying the compressor's speed. Since the compressor is controlled by a VFD, heat generation increases as the motor speed increases. Maintaining a reasonable VFD operating temperature and managing heat dissipation can improve component reliability and extend the life of the equipment.

[0003] The main cooling methods for inverters in the existing technology include air cooling, liquid cooling, and natural cooling. For higher-power inverters, liquid cooling is usually required. Its main structural form is: a reserved interface on the evaporator is connected to the inverter's liquid cooling inlet via a pipeline, and a reserved interface on the condenser is connected to the inverter's liquid cooling outlet via a pipeline. This structure requires a separate refrigerant channel from the air conditioning unit to flow through the inverter to continuously cool the inverter in a certain amount. When the compressor speed decreases, the cooling required by the inverter will be less than the cooling provided by this structure, resulting in the inverter temperature being too low and the inverter's operating reliability being unable to be guaranteed. Utility Model Content

[0004] In order to solve the technical problem that the cooling structure of the inverter in the prior art cannot ensure reliability, a compressor assembly and air-conditioning unit are provided, in which both ends of the cooling structure are connected to the suction end of the compressor and the cooling capacity of the cooling structure is dynamically adjusted through the suction capacity of the compressor to improve reliability.

[0005] A compressor assembly comprising:

[0006] A compressor body, wherein the compressor body is provided with an air suction end;

[0007] A cooling structure, wherein the air inlet and the air outlet of the cooling structure are both connected to the air suction end, and the distance from the air inlet to the air suction end is greater than the distance from the air outlet to the air suction end.

[0008] The compressor assembly further includes an air suction structure, one end of which is communicated with the air suction end, and the air inlet and the air outlet are both communicated with the air suction structure.

[0009] The cooling structure is provided with a mounting groove, and the air intake structure is provided with a mounting protrusion, and the mounting protrusion is snap-fitted with the mounting groove.

[0010] There are two mounting grooves, the air inlet is arranged in one mounting groove, and the air outlet is arranged in the other mounting groove.

[0011] The air intake structure is provided with a mounting groove, and the cooling structure is provided with a mounting protrusion, and the mounting protrusion is snap-fitted with the mounting groove.

[0012] There are two mounting protrusions, the air inlet is arranged at the top of one mounting protrusion, and the air outlet is arranged at the top of the other mounting protrusion.

[0013] A sealing member is provided between the mounting groove and the mounting protrusion.

[0014] The compressor assembly further includes an electronic component, which is disposed on the compressor body. The cooling structure is disposed between the electronic component and the compressor body.

[0015] The electronic component includes a frequency converter.

[0016] An air conditioning unit comprises the above-mentioned compressor assembly.

[0017] The compressor assembly and air-conditioning unit provided by the utility model connect the air inlet and air outlet of the cooling structure to the suction end of the compressor, and the distance difference between the air inlet and the air outlet and the suction end makes the negative pressure values generated at the air inlet and the air outlet of the suction end of the compressor different, and then the refrigerant can enter the air inlet and be discharged through the air outlet according to the negative pressure difference, thereby ensuring the reliable operation of the cooling structure, and the refrigerant amount of the cooling structure can also be dynamically adjusted with the working efficiency of the compressor, thereby enabling the cooling efficiency of the cooling structure to be dynamically adjusted, avoiding the problem of excessive cooling amount of the cooling structure in the prior art, and ensuring the working reliability and service life of the electronic components cooled by the cooling structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a compressor assembly provided in an embodiment of the present utility model;

[0019] In the picture:

[0020] 1. Compressor body; 11. Intake end; 2. Cooling structure; 21. Air inlet; 22. Air outlet; 3. Intake structure; 4. Electronic components. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0022] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0023] It should be noted that the terms "first," "second," and the like in the specification and claims of the present invention and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate for the embodiments of the present invention described herein. In addition, the terms "including" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or apparatuses.

[0024] It should be noted that in the description of this utility model, terms such as "upper," "lower," "left," "right," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These terms are used solely for ease of description and are not intended to indicate or imply that the device or component described must have a specific orientation, be constructed, or operate in a specific position. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "set," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0026] The cooling methods of the inverter in the prior art mainly include: air cooling, liquid cooling, and natural cooling. For inverters with higher power, liquid cooling is usually required for cooling, and its main structural form is: the reserved interface on the evaporator is connected to the liquid cooling inlet of the inverter through a pipeline, and the reserved interface on the condenser is connected to the liquid cooling outlet of the inverter through a pipeline. This structure requires a separate refrigerant to be drawn out from the air-conditioning unit to flow through the inverter to always perform quantitative cooling on the inverter. When the compressor speed decreases, the cooling amount required by the inverter will be less than the cooling amount provided by this structure, which makes the temperature at the inverter too low and the working reliability of the inverter cannot be guaranteed. To this end, the present application provides a method such as Figure 1 The compressor assembly shown includes: a compressor body 1, on which an air intake end 11 is provided; a cooling structure 2, wherein an air inlet 21 and an air outlet 22 of the cooling structure 2 are both connected to the air intake end 11, and the distance from the air inlet 21 to the air intake end 11 is greater than the distance from the air outlet 22 to the air intake end 11. The air inlet 21 and the air outlet 22 of the cooling structure 2 are both connected to the suction end 11 of the compressor, and the distance difference between the air inlet 21 and the air outlet 22 and the suction end 11 makes the negative pressure values generated at the air inlet 21 and the air outlet 22 of the compressor suction end 11 different. Then, the refrigerant can enter the air inlet 21 and be discharged through the air outlet 22 according to the negative pressure difference, thereby ensuring the reliable operation of the cooling structure 2, and the refrigerant amount of the cooling structure 2 can also be dynamically adjusted with the working efficiency of the compressor, thereby enabling the cooling efficiency of the cooling structure 2 to be dynamically adjusted, avoiding the problem of excessive cooling amount of the cooling structure 2 in the prior art, and ensuring the working reliability and service life of the electronic components cooled by the cooling structure 2.

[0027] The compressor assembly further includes an air intake structure 3, one end of which is connected to the air intake end 11. The compressor utilizes the air intake structure 3 to connect with other structures to achieve the purpose of air intake of the compressor. The air inlet 21 and the air outlet 22 are both connected to the air intake structure 3, which facilitates the arrangement of the positions of the air inlet 21 and the air outlet 22. The distance difference between the air inlet 21 and the air outlet 22 can also be directly formed according to the size of the air intake structure 3 to ensure the cooling reliability of the cooling structure 2. Preferably, the air intake structure 3 is an air intake pipe, and two connecting ports are provided on the side wall of the air intake pipe along the direction of air flow in the air intake pipe. The air inlet 21 is provided at the connecting port away from the air intake end 11, and the air outlet 22 is provided at the connecting port close to the air intake end 11.

[0028] As an embodiment, a mounting groove is provided on the cooling structure 2, and a mounting protrusion is provided on the air intake structure 3. The mounting protrusion is snap-fitted with the mounting groove, thereby realizing a reliable connection between the cooling structure 2 and the air intake structure 3, thereby ensuring the connection reliability of the cooling structure 2.

[0029] There are two mounting grooves, with the air inlet 21 located in one and the air outlet 22 located in the other. The connection port for the air intake structure 3 is located on top of the mounting protrusion. By installing the mounting protrusion into the corresponding mounting groove, the cooling structure 2 and the air intake structure 3 are connected. The mounting grooves and mounting protrusions securely connect the cooling structure 2 and the air intake structure 3, while also facilitating communication between the air inlet 21, the air outlet 22, and the air intake structure 3.

[0030] As another embodiment, a mounting groove is provided on the air intake structure 3, and a mounting protrusion is provided on the cooling structure 2. The mounting protrusion is snap-fitted with the mounting groove, which can also achieve a reliable connection between the cooling structure 2 and the air intake structure 3, thereby ensuring the connection reliability of the cooling structure 2.

[0031] There are two mounting protrusions, with the air inlet 21 located at the top of one mounting protrusion and the air outlet 22 located at the top of the other. The connection port of the air intake structure 3 is located within the mounting groove. By installing the mounting protrusions into the corresponding mounting grooves, the cooling structure 2 and the air intake structure 3 are connected. The mounting grooves and mounting protrusions securely connect the cooling structure 2 and the air intake structure 3, while also facilitating communication between the air inlet 21, the air outlet 22, and the air intake structure 3.

[0032] A sealing member is provided between the mounting groove and the mounting protrusion, and the connection position of the mounting groove and the mounting protrusion is sealed by the sealing member, thereby improving the reliability of the connection between the cooling structure 2 and the air intake structure 3.

[0033] The compressor assembly also includes an electronic component 4, which is arranged on the compressor body 1, and the cooling structure 2 is arranged between the electronic component 4 and the compressor body 1. By arranging the electronic component 4 on the compressor body 1, the electronic component 4 can be integrated with the compressor, thereby facilitating the arrangement of the cooling structure 2, shortening the size of the air inlet channel and the air outlet channel of the cooling structure 2, and reducing the structural complexity of the cooling structure 2. Preferably, the electronic component 4 is arranged on the air intake structure 3, and the cooling structure 2 is located between the air intake structure 3 and the electronic component 4. At this time, the low-temperature refrigerant flowing in the air intake structure 3 can also further cool the electronic component 4, thereby improving the cooling efficiency of the electronic component 4.

[0034] The electronic component 4 includes a frequency converter. When a frequency converter is installed on the compressor, the cooling structure 2 cools the frequency converter. The compressor speed is proportional to the heat generated by the frequency converter. As the compressor speed increases, the frequency converter heats up, the compressor intake volume increases, and the amount of refrigerant entering the cooling structure 2 also increases, improving the cooling effect on the frequency converter. As the compressor speed decreases, the frequency converter heats up, the compressor intake volume increases, and the amount of refrigerant entering the cooling structure 2 also decreases, reducing the cooling effect on the frequency converter. This avoids the problem of excessive cooling of the cooling structure 2 causing the frequency converter temperature to drop too low. The frequency converter heats up and dissipates heat in a relatively balanced manner, and the frequency converter operates in a relatively ideal state, ensuring its reliability and service life.

[0035] An air conditioning unit comprises the above-mentioned compressor assembly.

[0036] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A compressor assembly, characterized in that: include: A compressor body (1), wherein the compressor body (1) is provided with an air intake end (11); A cooling structure (2), wherein the air inlet (21) and the air outlet (22) of the cooling structure (2) are both connected to the air intake end (11), and the distance from the air inlet (21) to the air intake end (11) is greater than the distance from the air outlet (22) to the air intake end (11).

2. The compressor assembly according to claim 1, wherein: The compressor assembly further comprises an air suction structure (3), one end of the air suction structure (3) is in communication with the air suction end (11), and the air inlet (21) and the air outlet (22) are both in communication with the air suction structure (3).

3. The compressor assembly according to claim 2, characterized in that: The cooling structure (2) is provided with a mounting groove, and the air intake structure (3) is provided with a mounting protrusion, and the mounting protrusion is engaged with the mounting groove.

4. The compressor assembly according to claim 3, wherein: There are two mounting grooves, the air inlet (21) is arranged in one mounting groove, and the air outlet (22) is arranged in the other mounting groove.

5. The compressor assembly according to claim 2, wherein: The air intake structure (3) is provided with a mounting groove, and the cooling structure (2) is provided with a mounting protrusion, and the mounting protrusion is engaged with the mounting groove.

6. The compressor assembly according to claim 5, characterized in that: There are two mounting protrusions, the air inlet (21) is arranged at the top of one mounting protrusion, and the air outlet (22) is arranged at the top of the other mounting protrusion.

7. The compressor assembly according to any one of claims 3 to 6, characterized in that: A sealing member is provided between the mounting groove and the mounting protrusion.

8. The compressor assembly according to claim 1, wherein: The compressor assembly further comprises an electronic component (4), wherein the electronic component (4) is arranged on the compressor body (1), and the cooling structure (2) is arranged between the electronic component (4) and the compressor body (1).

9. The compressor assembly according to claim 8, wherein: The electronic component (4) includes a frequency converter.

10. An air conditioning unit, characterized in that: A compressor assembly comprising the compressor assembly of any one of claims 1 to 9.

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