Heat pump unit with anti-impact stability function

By setting a triangular flow-guiding structure and multiple layers of insect-proof netting inside the power supply box of the heat pump unit, combined with a hydrophobic protective layer, the problems of heat accumulation and pests inside the power supply box are solved, achieving efficient heat dissipation and insect prevention, and improving the stability and impact resistance of the equipment.

CN224498812UActive Publication Date: 2026-07-14HONGYUAN GEOTHERMAL HEAT PUMP TECH (ZHONGSHAN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HONGYUAN GEOTHERMAL HEAT PUMP TECH (ZHONGSHAN) CO LTD
Filing Date
2025-08-12
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The existing heat pump unit's power box has a sealed design that prevents the internal heat from being effectively dissipated. After long-term operation, the electronic components age, which may even trigger overheat protection or malfunction. It is also susceptible to invasion by mosquitoes and corrosion from humid air.

Method used

The design employs a triangular airflow guiding structure, insect-proof netting, and hydrophobic protective layer to separate the main and auxiliary heat dissipation chambers inside the power supply box. Airflow channels are achieved through multiple layers of insect-proof netting and heat dissipation holes, while a drainage system prevents water vapor accumulation, ensuring both heat dissipation and insect prevention effects.

Benefits of technology

It effectively prevents pests and impurities from entering, maintains the stability of internal components of the power box, reduces the risk of damage caused by vibration and impact, and improves the shock resistance and stability of the equipment.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224498812U_ABST
    Figure CN224498812U_ABST
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Abstract

The application discloses a heat pump unit with anti-impact stability function, which comprises a machine box, a power box, a fan cavity, a pressing cavity, an installation cavity arranged in the power box, a partition air-permeable component, a main heat dissipation chamber, an auxiliary heat dissipation chamber and a triangular flow guide structure, wherein the triangular flow guide structure comprises a first connecting plate which is in a triangular structure, a third heat dissipation hole arranged on the first connecting plate, and a first insect-proof net arranged on the side of the first connecting plate away from the second heat dissipation hole; an airflow channel is formed between the first insect-proof net and the first connecting plate, so that external airflow enters the auxiliary heat dissipation chamber through the second heat dissipation hole and the third heat dissipation hole in sequence. Through cooperation of the triangular flow guide structure and other structures, the application can not only ensure heat dissipation, but also reduce the entry of pests or impurities into the interior of the power box, thereby avoiding loosening of internal components of the power box caused by pest activities or impurity accumulation. The loosening may cause vibration during equipment operation, and further affect the stability and anti-impact capability of the equipment.
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Description

Technical Field

[0001] This utility model particularly relates to a heat pump unit with shock resistance and stability. Background Technology

[0002] In heat pump units or air conditioner outdoor units, the power supply box is typically used to install key electrical components such as power modules and control circuits. Because these devices operate outdoors for extended periods, the power supply box is susceptible to problems such as insect intrusion, corrosion from humid air, and poor heat dissipation, leading to short circuits, component aging, and even equipment failure.

[0003] Currently, a common power supply box arrangement (such as the utility model with authorization announcement number CN220711881U) involves placing one end of the power supply box inside the compressor cavity and the other end inside the fan cavity. Since the fan cavity easily draws in outside air and carries insects during operation, the end of the power supply box located inside the fan cavity is usually sealed, and ventilation holes are provided at the end of the power supply box on the compressor cavity side to promote airflow. However, this design has the following technical problems:

[0004] The sealed end of the power supply box (fan cavity side) completely blocks air convection, causing internal heat to be unable to be effectively dissipated. After long-term operation, the internal temperature of the power supply box continues to rise, accelerating the aging of electronic components and even triggering overheat protection or failure. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a heat pump unit with shock resistance and stability.

[0006] To solve the aforementioned technical problems, this utility model adopts the following technical solution:

[0007] A heat pump unit with shock resistance and stability includes a chassis and a power supply box. The chassis includes a fan chamber and a compressor chamber that are isolated from each other. The power supply box has a first end extending into the compressor chamber and a second end extending into the fan chamber. The power supply box has an internal mounting cavity, and a partition and ventilation assembly is provided within the mounting cavity to divide the mounting cavity into a main heat dissipation chamber near the first end and an auxiliary heat dissipation chamber near the second end. The main heat dissipation chamber communicates with the compressor chamber through a first heat dissipation hole at the first end; the auxiliary heat dissipation chamber communicates with the fan chamber through a second heat dissipation hole at the second end. A triangular flow guiding structure is provided within the auxiliary heat dissipation chamber, including:

[0008] The first connecting plate is inclined and its two sides are fixedly connected to the inner sidewall of the partition ventilation component and the auxiliary heat dissipation chamber, respectively. The first connecting plate has a triangular structure.

[0009] A third heat dissipation hole is provided on the first connecting plate; a first insect-proof net is provided on the side of the first connecting plate opposite to the second heat dissipation hole; an airflow channel is formed between the first insect-proof net and the first connecting plate, so that external airflow enters the auxiliary heat dissipation chamber through the second heat dissipation hole and the third heat dissipation hole in sequence.

[0010] Preferably, the air-permeable partition includes a fixed frame, and a second insect-proof net is provided on the fixed frame.

[0011] Preferably, a third insect-proof net is provided on the outside of the first heat dissipation hole, and the third insect-proof net is fixedly covered to the first heat dissipation hole by a detachable connection structure.

[0012] Preferably, a water receiving trough is provided at the bottom of the fan cavity, the water receiving trough is connected to a drain pipe, and the water receiving trough is connected to an external drainage system.

[0013] Preferably, the first connecting plate is coated with a hydrophobic protective layer.

[0014] Preferably, the hydrophobic protective layer is a fluorosilicone-modified acrylic material.

[0015] The beneficial effects of this utility model are:

[0016] This application utilizes a triangular airflow guiding structure, a first insect-proof mesh, and a second insect-proof mesh to ensure heat dissipation while reducing the entry of insects or impurities into the power supply box. This prevents internal components from loosening due to insect activity or impurity accumulation. Such loosening could cause vibration during equipment operation, affecting the equipment's stability and shock resistance. By effectively preventing insects and impurities from entering, the internal components remain stable, reducing the risk of damage caused by vibration or impact. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a structural schematic diagram of a heat pump unit with shock resistance and stability function according to this application;

[0019] Figure 2 This is a cross-sectional view of a heat pump unit with shock resistance and stabilization function according to this application;

[0020] Figure 3 For the purposes of this application Figure 2 A magnified view of a portion of A;

[0021] Figure 4 For the purposes of this application Figure 3 A magnified view of part B;

[0022] Figure 5 For the purposes of this application Figure 3 A magnified view of part C. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0024] The orientation shown in the accompanying drawings should not be construed as limiting the specific protection scope of this utility model, but is only for reference and understanding of preferred embodiments. The product components shown in the drawings can be changed in position, increased in number, or simplified in structure.

[0025] The “connection” described in the specification and the “connection” relationship between the components shown in the accompanying drawings can be understood as a fixed connection, a detachable connection, or a connection that forms an integral unit; it can be a direct connection or a connection through an intermediate medium. Those skilled in the art can understand the connection relationship according to the specific circumstances and can derive different implementation methods such as screwing, riveting, soldering, snap-fitting, or embedding to suitably replace it.

[0026] The directional terms such as up, down, left, right, top, and bottom mentioned in the instruction manual and the directions shown in the attached drawings indicate that the components can directly contact each other or contact each other through other features; for example, "up" can mean directly above or diagonally above, or it simply means above other objects; other directions can be understood by analogy.

[0027] The materials used to manufacture solid-shaped parts as shown in the specification and drawings may be metallic, non-metallic, or other synthetic materials. The machining processes used for solid-shaped parts may include stamping, forging, casting, wire cutting, laser cutting, injection molding, CNC milling, 3D printing, machining, etc. Those skilled in the art may adapt or combine the above materials and manufacturing processes according to different processing conditions, costs, and precision requirements.

[0028] A heat pump unit with shock resistance and stability includes a chassis 1 and a power supply box 2. The chassis 1 includes a fan chamber 3 and a compressor chamber 4, which are isolated from each other. The power supply box 2 has a first end extending into the compressor chamber 4 and a second end extending into the fan chamber 3. The power supply box 2 has an internal mounting cavity, and a partition and ventilation assembly 6 is provided within the mounting cavity to divide the mounting cavity into a main heat dissipation chamber 7 near the first end and an auxiliary heat dissipation chamber 8 near the second end. The main heat dissipation chamber 7 communicates with the compressor chamber 4 through a first heat dissipation hole 9 at the first end; the auxiliary heat dissipation chamber 8 communicates with the fan chamber 3 through a second heat dissipation hole 10 at the second end. The auxiliary heat dissipation chamber 8 has a triangular flow guiding structure, including:

[0029] The first connecting plate 11 is inclined and its two sides are fixedly connected to the inner sidewalls of the separating and ventilating component 6 and the auxiliary heat dissipation chamber 8, respectively. The first connecting plate 11 has a triangular structure.

[0030] A third heat dissipation hole 12 is provided on the first connecting plate 11; a first insect-proof net 13 is provided on the side of the first connecting plate 11 facing away from the second heat dissipation hole 10; an airflow channel is formed between the first insect-proof net 13 and the first connecting plate 11, so that external airflow enters the auxiliary heat dissipation chamber 8 through the second heat dissipation hole 10 and the third heat dissipation hole 12 in sequence.

[0031] Furthermore, the air-permeable partition component 6 includes a fixing frame 14, on which a second insect-proof net 15 is provided.

[0032] Furthermore, a third insect-proof net 16 is provided on the outside of the first heat dissipation hole 9, and the third insect-proof net 16 is fixedly covered to the first heat dissipation hole 9 by a detachable connection structure.

[0033] Furthermore, a water receiving trough 17 is provided at the bottom of the fan cavity 3, and the water receiving trough 17 is connected to a drain pipe 18 and is connected to an external drainage system.

[0034] Furthermore, the first connecting plate 11 is coated with a hydrophobic protective layer.

[0035] Furthermore, the hydrophobic protective layer is a fluorosilicone-modified acrylic material.

[0036] The working principle of this utility model is as follows:

[0037] The heat pump unit of this utility model includes a casing 1 and a power supply box 2. The casing 1 is internally divided into a fan chamber 3 and a compressor chamber 4. The power supply box 2 passes through the fan chamber 3 and the compressor chamber 4. Its internal mounting cavity is divided into a main heat dissipation chamber 7 and an auxiliary heat dissipation chamber 8 by a ventilating partition 6.

[0038] The main heat dissipation chamber 7 is connected to the compressor chamber 4 through the first heat dissipation hole 9, and is used to dissipate heat within the main heat dissipation chamber 7. The auxiliary heat dissipation chamber 8 is connected to the fan chamber 3 through the second heat dissipation hole 10, and is used to dissipate heat within the auxiliary heat dissipation chamber 8. A triangular airflow guiding structure is provided within the auxiliary heat dissipation chamber 8, including an inclined first connecting plate 11, whose two sides are fixedly connected to the inner sidewalls of the separating ventilated component 6 and the auxiliary heat dissipation chamber 8, respectively. A third heat dissipation hole 12 is provided on the first connecting plate 11, and a first insect-proof net 13 is provided on the side facing away from the second heat dissipation hole 10. An airflow channel is formed between the first insect-proof net 13 and the first connecting plate 11. External airflow enters the auxiliary heat dissipation chamber 8 sequentially through the second heat dissipation hole 10 and the third heat dissipation hole 12, achieving a highly efficient heat dissipation effect. Here, the airflow channel refers to the channel formed by the mesh openings of the third heat dissipation hole 12 and the first insect-proof net 13. In this technical solution, the triangular structure of the first connecting plate 11 is necessary because, during the fan's rotation, water vapor may be introduced into the second heat dissipation hole 10. This water vapor will adhere to the first connecting plate 11, and its inclined surface effectively guides the water vapor to slide off the plate, preventing water vapor from accumulating and forming droplets. This avoids droplets entering the auxiliary heat dissipation chamber 8 and causing short circuits or other safety hazards to the equipment's electrical components. As a preferred solution, this application coats the first connecting plate 11 with a hydrophobic protective layer made of fluorosilicone-modified acrylic material. This material has excellent hydrophobic properties, effectively preventing water vapor from adhering to and accumulating on the surface of the first connecting plate 11. When water vapor introduced during the fan's rotation comes into contact with the first connecting plate 11, it will quickly form water droplets and slide off due to the hydrophobic protective layer, thus preventing water vapor from remaining on the first connecting plate 11 for extended periods and further reducing the risk of water vapor damaging the internal electrical components of the equipment.

[0039] Based on the above technical solution, the partition ventilation component 6 includes a fixed frame 14, on which a second insect-proof net 15 is provided. This is because the compressor and the fan generate different heat characteristics during operation. The compressor generates higher and more concentrated heat, while the fan generates relatively lower heat but has a larger airflow. For example, when the heat inside the compressor chamber is high, some of the heat can be transferred to the auxiliary heat dissipation chamber through the partition ventilation component, and further dissipated with the help of the airflow in the fan chamber, thus avoiding local overheating. The second insect-proof net 15 is provided to prevent insects from entering the main heat dissipation chamber 7 while allowing airflow and heat exchange.

[0040] Based on the above technical solution, a third insect-proof net 16 is provided on the outside of the first heat dissipation hole 9. This net is fixedly attached to the first heat dissipation hole 9 via a detachable connection structure. As part of a multi-layered protection system, the third insect-proof net 16, together with the second and first insect-proof nets, constitutes comprehensive insect protection. It effectively intercepts insects, spiders, and other small animals, preventing them from entering the main heat dissipation chamber 7 through the first heat dissipation hole 9, thereby protecting the internal electrical components of the equipment from insect damage.

[0041] Based on the above technical solution, a water collection trough 17 is provided at the bottom of the fan cavity 3. The water collection trough 17 is connected to the external drainage system through a drain pipe 18. The first connecting plate 11 is coated with a hydrophobic protective layer, which can effectively prevent water vapor from accumulating on the plate surface. Water droplets will slide off along the inclined plate surface. The position design of the water collection trough 17 allows these sliding water droplets to be collected smoothly, preventing water droplets from falling directly on other components of the fan cavity 3, and further protecting the electrical components inside the equipment.

[0042] This application utilizes a triangular airflow guiding structure, a first insect-proof mesh, and a second insect-proof mesh to ensure heat dissipation while reducing the entry of insects or impurities into the power supply box. This prevents internal components from loosening due to insect activity or impurity accumulation. Such loosening could cause vibration during equipment operation, affecting the equipment's stability and shock resistance. By effectively preventing insects and impurities from entering, the internal components remain stable, reducing the risk of damage caused by vibration or impact.

[0043] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the present invention without departing from the principles and spirit of the present invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for explanation only and not for limiting the present invention, but rather the scope of protection is defined by the content of the claims.

Claims

1. A heat pump unit with shock resistance and stability, comprising a chassis (1) and a power supply box (2), characterized in that: The chassis (1) includes a fan chamber (3) and a compressor chamber (4) that are isolated from each other; the power supply box (2) has a first end extending into the compressor chamber (4) and a second end extending into the fan chamber (3); the power supply box (2) has an installation cavity inside, and a partition and ventilation component (6) is provided in the installation cavity to divide the installation cavity into a main heat dissipation chamber (7) near the first end and an auxiliary heat dissipation chamber (8) near the second end, wherein: the main heat dissipation chamber (7) is connected to the compressor chamber (4) through a first heat dissipation hole (9) provided at the first end; the auxiliary heat dissipation chamber (8) is connected to the fan chamber (3) through a second heat dissipation hole (10) provided at the second end; the auxiliary heat dissipation chamber (8) is provided with a triangular flow guiding structure, including: The first connecting plate (11) is inclined and its two sides are fixedly connected to the inner sidewalls of the partition ventilation component (6) and the auxiliary heat dissipation chamber (8), respectively. The first connecting plate (11) has a triangular structure. A third heat dissipation hole (12) is provided on the first connecting plate (11); a first insect-proof net (13) is provided on the side of the first connecting plate (11) facing away from the second heat dissipation hole (10); an airflow channel is formed between the first insect-proof net (13) and the first connecting plate (11), so that the external airflow passes through the second heat dissipation hole (10) and the third heat dissipation hole (12) in sequence and enters the auxiliary heat dissipation chamber (8).

2. A heat pump unit with shock resistance and stability according to claim 1, characterized in that, The partition and breathable component (6) includes a fixed frame (14), on which a second insect-proof net (15) is provided.

3. A heat pump unit with shock resistance and stability according to claim 1, characterized in that, A third insect-proof net (16) is provided on the outside of the first heat dissipation hole (9), and the third insect-proof net (16) is fixedly covered to the first heat dissipation hole (9) by a detachable connection structure.

4. A heat pump unit with shock resistance and stability according to claim 1, characterized in that, A water receiving trough (17) is provided at the bottom of the fan cavity (3), and the water receiving trough (17) is connected to a drain pipe (18). The water receiving trough (17) is connected to an external drainage system.

5. A heat pump unit with shock resistance and stability according to claim 1, characterized in that, The first connecting plate (11) is coated with a hydrophobic protective layer.

6. A heat pump unit with shock resistance and stability according to claim 5, characterized in that, The hydrophobic protective layer is made of fluorosilicone-modified acrylic material.

Citation Information

Patent Citations

  • Heat pump unit

    CN220711881U