A heat pump unit

Abstract

The application discloses a heat pump unit, and belongs to the field of air conditioning technology. The heat pump unit comprises a frame body, a clamp and a heat exchange assembly. The frame body has a stand and a supporting beam arranged on the stand. The clamp is arranged on the stand and cooperates with the stand to form a clamping groove above the supporting beam. The heat exchange assembly is arranged in the clamping groove and abuts against the supporting beam. The heat exchange assembly comprises a first heat preservation shell, a second heat preservation shell and a heat exchanger. The first heat preservation shell is connected with the second heat preservation shell and cooperates with the second heat preservation shell to form a heat preservation cavity. The first heat preservation shell and / or the second heat preservation shell is / are provided with a pipe hole. The heat preservation cavity is in communication with the outside of the heat preservation cavity through the pipe hole. The heat exchanger is arranged in the heat preservation cavity. The application can avoid the interference of external factors on the heat exchanger during operation, and ensure the normal operation of the heat pump unit.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and more particularly to a heat pump unit. Background Technology

[0002] In the field of heat pump unit technology, the installation and performance of plate heat exchangers play a crucial role in the stable operation of the heat pump unit. Currently, the industry commonly uses clamps to directly fix the plate heat exchanger to the frame. However, this installation method, along with the inherent characteristics of plate heat exchangers, exposes many problems in practical applications. Specifically, from a performance perspective, plate heat exchangers have several inherent shortcomings. Their insulation performance is insufficient to meet actual needs, and they cannot effectively reduce heat loss during heat transfer, resulting in a significant reduction in energy efficiency. Simultaneously, their moisture resistance is extremely weak; in humid environments, they easily absorb moisture from the air, affecting the heat exchange efficiency of the internal medium and potentially causing corrosion and damage to the internal structure. Their temperature resistance is also unsatisfactory; facing significant temperature fluctuations, the material properties of the plate heat exchanger will change significantly, leading to unstable heat exchange performance and, in severe cases, deformation and cracking. Furthermore, the clamp-fixing method also has significant drawbacks in terms of installation stability. Because the connection between the clamp and the plate heat exchanger / frame may become loose or experience uneven stress, the plate heat exchanger is prone to shaking and displacement during heat pump operation. This not only affects heat exchange efficiency but also increases equipment wear and the risk of failure. Moreover, this unstable installation method makes the plate heat exchanger more susceptible to damage from external impacts or vibrations, shortening its lifespan. These defects make the plate heat exchanger highly vulnerable to interference from complex external factors, leading to failure and adversely affecting the normal operation of the heat pump unit, thus reducing the reliability and stability of the entire heat pump system. Utility Model Content

[0003] The purpose of this utility model embodiment is to provide a heat pump unit that can solve the above-mentioned problems existing in the prior art.

[0004] To achieve the above objectives, this application adopts the following technical solution: A heat pump unit, comprising: The frame has an upright and a support beam mounted on the upright; A clamp is installed on the upright and together with the upright forms a clamping groove located above the support beam; A heat exchange assembly is disposed within the clamping groove and abuts against the supporting beam; The heat exchange assembly includes a first insulation shell, a second insulation shell, and a heat exchanger; the first insulation shell and the second insulation shell are connected and together enclose an insulation cavity, the first insulation shell and / or the second insulation shell are provided with pipe holes, the insulation cavity is connected to the outside of the insulation cavity through the pipe holes, and the heat exchanger is disposed inside the insulation cavity.

[0005] Preferably, the first insulation shell is provided with a first engaging portion, and the second insulation shell is provided with a second engaging portion, wherein the first engaging portion engages with the second engaging portion.

[0006] Preferably, a retaining ring is provided at the first engaging portion, and an annular groove is provided at the second engaging portion. Both the retaining ring and the annular groove are arranged around the heat exchanger, and the retaining ring engages with the annular groove.

[0007] Preferably, the first insulation shell is provided with a first receiving groove, and the second insulation shell is provided with a second receiving groove. The inner walls of the first receiving groove and the inner walls of the second receiving groove together enclose the insulation cavity. A portion of the heat exchanger engages with the first receiving groove, and the remaining portion of the heat exchanger engages with the second receiving groove.

[0008] Preferably, the upright frame is provided with positioning holes and sliding holes, the clamp is U-shaped, the clamp has a first connecting end and a second connecting end, the first connecting end is provided with a connecting plate with a connecting hole, the connecting plate is installed on the upright frame through the connecting hole and the positioning hole by connecting fasteners, the second connecting end of the clamp is provided with a hook groove and slides in the sliding hole along the direction close to or away from the support beam, the second connecting end of the clamp is hooked to the upright frame through the hook groove.

[0009] Preferably, the clamp is formed by bending sheet metal, and the edge of the clamp is bent to form a reinforcing fold.

[0010] Preferably, the support frame is provided with a first limiting plate and a second limiting plate arranged at intervals, both the first limiting plate and the second limiting plate being located above the support beam, and the heat exchange component being clamped between the first limiting plate and the second limiting plate.

[0011] Preferably, multiple first limiting plates are spaced apart along the direction away from the support beam, and the second limiting plates correspond one-to-one with the first limiting plates. At least a portion of the first limiting plates and at least a portion of the second limiting plates are located above the clamp, and at least a portion of the first limiting plates and at least a portion of the second limiting plates are located below the clamp.

[0012] Preferably, both the first insulation shell and the second insulation shell are formed by high-foaming polypropylene.

[0013] Preferably, the bottom of the first insulation shell and / or the second insulation shell abuts against the support beam.

[0014] The beneficial effects of this application are as follows: The heat exchanger assembly of this heat pump unit avoids problems such as insufficient insulation performance, susceptibility to moisture, and poor temperature resistance by encasing the heat exchanger in the first and second insulation shells, thus improving the overall performance of the heat exchanger. Simultaneously, when the heat exchanger assembly of this application is installed on the frame using clamps, the support beams improve the stability of the installation, preventing interference from external factors during heat exchanger operation and improving the reliability and stability of the entire heat pump system. Attached Figure Description

[0015] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the structure of a heat pump unit; Figure 2 This is a schematic diagram of the assembly of the support frame and clamps; Figure 3 Exploded view of the frame and clamps; Figure 4 for Figure 3 A magnified view of point A; Figure 5 This is an exploded view of the heat exchange assembly.

[0017] Explanation of reference numerals in the attached figures: 1. Frame; 2. Clamps; 3. Heat exchange components; 4. Support beams; 5. Grooves; 11. Positioning hole; 12. Sliding hole; 13. First limiting plate; 14. Second limiting plate; 21. First connecting end; 22. Second connecting end; 23. Connecting plate; 24. Connecting hole; 25. Groove; 26. Reinforcing fold; 301, First insulation shell; 302, Second insulation shell; 303, Heat exchanger; 304, Insulation cavity; 305, First engaging part; 306, Second engaging part; 307, Snap ring; 308, Annular groove; 309, First receiving groove; 310, Second receiving groove; 311, Pipe hole. Detailed Implementation

[0018] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "fixed," "linked," "communicated," "abutting," "clamping," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] Before discussing the exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe the operations (or steps) as sequential processes, many of these operations can be performed in parallel, concurrently, or simultaneously. Furthermore, the order of the operations can be rearranged. The process can be terminated when its operation is completed, but it may also have additional steps not included in the figures. The process may correspond to a method, function, procedure, subroutine, subroutine, etc.

[0022] Unless otherwise stated or defined, the term "and / or" as used in this invention includes any and all combinations of one or more of the associated listed items.

[0023] For ease of description, the up and down directions mentioned below are... Figure 1 Its vertical direction is consistent with the horizontal direction mentioned below. Figure 1 Its left and right directions are consistent.

[0024] like Figures 1 to 5 As shown in the figure, this embodiment provides a heat pump unit, including a frame, a clamp 2, and a heat exchange assembly 3. The frame has a stand 1 and a support beam 4 mounted on the stand 1. In the accompanying drawings of this embodiment, only the support beam 4 is shown; the chassis, cover plate, and other components of the frame are not shown.

[0025] The frame has a stand 1 and a support beam 4 mounted on the stand 1. The support beam 4 supports the heat exchange assembly 3. A clamp 2 is installed on the stand 1, and the clamp 2 and the stand 1 together form a groove 5 located above the support beam 4. The heat exchange assembly 3 is located in the groove 5 and abuts against the support beam 4. The support beam 4 and the clamp 2 together provide support and installation positioning for the heat exchange assembly 3.

[0026] The heat exchange assembly 3 includes a first insulation shell 301, a second insulation shell 302, and a heat exchanger 303. The heat exchanger 303 is a plate heat exchanger. The first insulation shell 301 and the second insulation shell 302 have a heat preservation function. The first insulation shell 301 and the second insulation shell 302 are connected and together enclose an insulation cavity 304, achieving a sealed installation of the heat exchanger 303. The first insulation shell 301 and / or the second insulation shell 302 are provided with pipe holes 311. The insulation cavity 304 communicates with the outside of the insulation cavity 304 through the pipe holes 311, facilitating the connection of the heat exchanger 303 to the refrigerant pipeline. The heat exchanger 303 is located inside the insulation cavity 304, and the inner wall of the insulation cavity 304 abuts against the heat exchanger 303, achieving heat preservation and sealing of the heat exchanger 303.

[0027] This application improves the insulation performance of the heat exchanger 303 by installing it within the insulation cavity 304 formed by the first insulation shell 301 and the second insulation shell 302. This not only effectively reduces heat loss and improves energy efficiency during heat transfer, but also enhances the heat exchanger 303's moisture resistance and temperature resistance, ensuring the stability of its heat exchange performance. The first insulation shell 301, the second insulation shell 302, and the heat exchanger 303 are positioned and mounted on the frame 1 using clamps 2 and support beams 4. The support beams 4 and clamps 2 together provide support for the first insulation shell 301, the second insulation shell 302, and the heat exchanger 303. Compared to using clamps 2 alone, this application provides a more stable installation, avoiding loosening or uneven stress, eliminating the impact of heat pump unit operation, and reducing the wear and failure risk of the heat exchanger 303. Thus, the heat pump unit of this application avoids the heat exchanger 303 from failing due to interference from complex external factors, thereby avoiding adverse effects on the normal operation of the heat pump host and improving the reliability and stability of the entire heat pump system.

[0028] In one embodiment, the first insulation shell 301 is provided with a first engaging portion 305, and the second insulation shell 302 is provided with a second engaging portion 306. The first engaging portion 305 and the second engaging portion 306 engage with each other. The first insulation shell 301 and the second insulation shell 302 are quickly connected and enclose the heat exchanger 303 through the mutual engagement of the first engaging portion 305 and the second engaging portion 306, thereby realizing the rapid assembly of the first insulation shell 301, the second insulation shell 302, and the heat exchanger 303.

[0029] Furthermore, the first engaging part 305 is located on the outer side of the first insulation shell 301, and the second engaging part 306 is located on the outer side of the second insulation shell 302. The first engaging part 305 is provided with a retaining ring 307, and the second engaging part 306 is provided with an annular groove 308. When the first insulation shell 301 and the second insulation shell 302 are connected, the heat exchanger 303 is located between the first insulation shell 301 and the second insulation shell 302. After the outer side of the first insulation shell 301 abuts against the outer side of the second insulation shell 302, it wraps around the heat exchanger 303. At this time, both the retaining ring 307 and the annular groove 308 are encircled around the heat exchanger 303, and the friction generated by the engagement of the retaining ring 307 and the annular groove 308 realizes the installation of the heat exchanger 303 and completes the initial fixation of the heat exchanger 303.

[0030] In one embodiment, a first receiving groove 309 is provided on the first insulation shell 301, and a second receiving groove 310 is provided on the second insulation shell 302. Both the first receiving groove 309 and the second receiving groove 310 are square grooves. The first receiving groove 309 is located in the area enclosed by the retaining ring 307, and the second receiving groove 310 is located in the area enclosed by the annular groove 308. The inner walls of the first receiving groove 309 and the second receiving groove 310 together enclose to form an insulation cavity 304. A portion of the heat exchanger 303 engages with the first receiving groove 309, and the remaining portion of the heat exchanger 303 engages with the second receiving groove 310. The positioning of the heat exchanger 303 in the up-down, left-right, and front-back directions is achieved through the cooperation of the inner walls of the first receiving groove 309 and the second receiving groove 310, providing comprehensive external protection.

[0031] Optionally, the support frame 1 is provided with positioning holes 11 and sliding holes 12, which are spaced apart along the horizontal direction. The clamp 2 is U-shaped and has a first connecting end 21 and a second connecting end 22. The first connecting end 21 of the clamp 2 is provided with a connecting plate 23 having a connecting hole 24. The connecting plate 23 is installed on the support frame 1 through the connecting hole 24 and the positioning hole 11 by fasteners such as screws and rivets. The second connecting end 22 of the clamp 2 is provided with a hook groove 25 and slides in the sliding hole 12 along the direction close to or away from the support beam 4. The second connecting end 22 of the clamp 2 is hooked to the support frame 1 through the hook groove 25. The second connecting end 22 of the clamp 2 does not need to be fixed with screws, reducing the use of fasteners such as screws. The use of fewer screws simplifies the installation process of the heat exchanger 303 and reduces production and maintenance costs.

[0032] When installing the heat exchange component 3, first place the heat exchange component 3 against the support frame 1, with the lower end of the heat exchange component 3 against the support beam 4. Then, insert the second connecting end 22 of the clamp 2 into the sliding hole 12, and then slide the clamp 2 downward so that the connecting hole 24 is aligned with the positioning hole 11 and the hook groove 25 is hooked onto the support frame 1. Finally, install the connecting fasteners to install the clamp 2 on the support frame 1, thus completing the quick installation of the heat exchange component 3.

[0033] Compared to the method of using fasteners to install the first connecting end 21 and the second connecting end 22 of the clamp 2, this application does not require the first connecting end 21 and the second connecting end 22 of the clamp 2 to be aligned with the positioning hole 11 on the stand 1 for installation. This avoids the risk of misalignment between the other end of the clamp 2 and the positioning hole 11 when fasteners are installed on one end of the clamp 2, making the installation of the clamp 2 simpler and more efficient.

[0034] Furthermore, the clamp 2 is formed by bending sheet metal into three sections to create a clamp 2 with grooves. The connecting plate 23 and the hook groove 25 are integrally formed on the sheet metal. The edges of the clamp 2 are bent to form reinforcing folds 26. The upper and lower edges of each section of sheet metal are bent downwards and upwards respectively to form reinforcing folds 26, which abut against the outer surface of the sheet metal, thereby strengthening the structural strength of the clamp 2.

[0035] In one embodiment, the support frame 1 is provided with a first limiting plate 13 and a second limiting plate 14 spaced apart. The first limiting plate 13 and the second limiting plate 14 are integrally formed with the support frame 1. In this embodiment, the first limiting plate 13 and the second limiting plate 14 are formed by bending the sheet metal of the support frame 1, reducing the use of fasteners such as screws or welding processes, resulting in higher production efficiency and lower costs. The first limiting plate 13 and the second limiting plate 14 are both located above the support beam 4, and the heat exchange component 3 is clamped between the first limiting plate 13 and the second limiting plate 14, improving the stability of the heat exchange component 3 installation. When installing the heat exchange component 3, the heat exchange component 3 is snapped into the first limiting plate 13 and the second limiting plate 14 to achieve the positioning of the heat exchange component 3. The positioning of the first limiting plate 13 and the second limiting plate 14 can better free the installer's hands, allowing the installer to more easily install the clamp 2, greatly improving the convenience and efficiency of heat pump unit production, and ensuring the reliability and stability of the heat exchanger 303 under various working conditions.

[0036] Optionally, multiple first limiting plates 13 are spaced apart along the direction away from the support beam 4, and multiple second limiting plates 14 correspond one-to-one with the first limiting plates 13. Multiple first limiting plates 13 and multiple second limiting plates 14 are also present and correspond one-to-one. The multiple first limiting plates 13 are spaced apart along the direction away from the support beam 4, and the multiple second limiting plates 14 are spaced apart along the same direction. At least some of the first limiting plates 13 and at least some of the second limiting plates 14 are located above the clamp 2, and at least some of the first limiting plates 13 and at least some of the second limiting plates 14 are located below the clamp 2. In this embodiment, one first limiting plate 13 and one second limiting plate 14 are provided above and below the clamp 2, further improving the stability and efficiency of the heat exchange assembly 3 installation.

[0037] Optionally, both the first insulation shell 301 and the second insulation shell 302 are formed by processing high-foaming polypropylene. Compared with sponge, high-foaming polypropylene (EPP) not only has better thermal insulation and water absorption properties, but also has the advantages of being less susceptible to moisture failure, strong temperature resistance, high mechanical strength, and less prone to damage. This allows the first insulation shell 301 and the second insulation shell 302 to better protect the heat exchanger 303 from interference from external factors.

[0038] This application enhances the stability, vibration resistance, and protection of the plate heat exchanger 303 by combining sheet metal and EPP protective material, effectively extending the service life of the plate heat exchanger 303. Therefore, the heat pump unit of this application has good vibration resistance and shock absorption performance, reduces the impact on surrounding equipment, and can better cope with long-term mechanical vibration.

[0039] In one embodiment, the bottom of the first insulation shell 301 and / or the second insulation shell 302 abuts against the support beam 4. In this application, the bottom of the first insulation shell 301 abuts against the support beam 4, the side of the first insulation shell 301 abuts against the upright 1, and the second insulation shell 302 is provided with pipe holes 311 facing outward to facilitate the installation of refrigerant pipes.

[0040] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A heat pump unit, characterized in that, include: The frame has a stand (1) and a support beam (4) provided on the stand (1); The clamp (2) is installed on the upright (1) and together with the upright (1) forms a clamping groove (5) located above the support beam (4); The heat exchange assembly (3) is disposed in the clamping groove (5) and abuts against the support beam (4); The heat exchange assembly (3) includes a first insulation shell (301), a second insulation shell (302), and a heat exchanger (303); the first insulation shell (301) and the second insulation shell (302) are connected and together enclose an insulation cavity (304); the first insulation shell (301) and / or the second insulation shell (302) are provided with pipe holes (311); the insulation cavity (304) is connected to the outside of the insulation cavity (304) through the pipe holes (311); and the heat exchanger (303) is located inside the insulation cavity (304).

2. The heat pump unit according to claim 1, characterized in that, The first heat insulation shell (301) is provided with a first engaging part (305), and the second heat insulation shell (302) is provided with a second engaging part (306), and the first engaging part (305) engages with the second engaging part (306).

3. The heat pump unit according to claim 2, characterized in that, A retaining ring (307) is provided at the first engaging part (305), and an annular groove (308) is provided at the second engaging part (306). The retaining ring (307) and the annular groove (308) are both arranged around the heat exchanger (303), and the retaining ring (307) engages with the annular groove (308).

4. The heat pump unit according to claim 1, characterized in that, The first insulation shell (301) is provided with a first receiving groove (309), and the second insulation shell (302) is provided with a second receiving groove (310). The inner wall of the first receiving groove (309) and the inner wall of the second receiving groove (310) together enclose the insulation cavity (304). A portion of the heat exchanger (303) is engaged with the first receiving groove (309), and the remaining portion of the heat exchanger (303) is engaged with the second receiving groove (310).

5. The heat pump unit according to any one of claims 1 to 4, characterized in that, The upright (1) is provided with a positioning hole (11) and a sliding hole (12). The clamp (2) is U-shaped and has a first connecting end (21) and a second connecting end (22). The first connecting end (21) is provided with a connecting plate (23) with a connecting hole (24). The connecting plate (23) is installed on the upright (1) by connecting fasteners passing through the connecting hole (24) and the positioning hole (11). The second connecting end (22) of the clamp (2) is provided with a hook groove (25) and slides in the sliding hole (12) along the direction close to or away from the support beam (4). The second connecting end (22) of the clamp (2) is hooked to the upright (1) through the hook groove (25).

6. The heat pump unit according to claim 5, characterized in that, The clamp (2) is formed by bending sheet metal, and the edge of the clamp (2) is bent to form a reinforcing fold (26).

7. The heat pump unit according to any one of claims 1 to 4, characterized in that, The support frame (1) is provided with a first limiting plate (13) and a second limiting plate (14) arranged at intervals. The first limiting plate (13) and the second limiting plate (14) are both located above the support beam (4), and the heat exchange component (3) is clamped between the first limiting plate (13) and the second limiting plate (14).

8. The heat pump unit according to claim 7, characterized in that, The first limiting plate (13) is provided in multiple positions along the direction away from the support beam (4). The second limiting plate (14) corresponds to the first limiting plate (13) one by one. At least a portion of the first limiting plate (13) and at least a portion of the second limiting plate (14) are located above the clamp (2), and at least a portion of the first limiting plate (13) and at least a portion of the second limiting plate (14) are located below the clamp (2).

9. The heat pump unit according to any one of claims 1 to 4, characterized in that, Both the first insulation shell (301) and the second insulation shell (302) are formed by high-foaming polypropylene.

10. The heat pump unit according to any one of claims 1 to 4, characterized in that, The bottom of the first insulation shell (301) and / or the second insulation shell (302) abuts against the support beam (4).

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