Arc-shaped flow guide cover for improving operation efficiency of heat pump
By using an arc-shaped air guide and an opening/closing structure at the air inlet of the heat pump, the problem of uneven air distribution is solved, thereby achieving efficient operation of the heat pump and improving the heat exchange effect.
Patent Information
- Application Number
- CN202520520399.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-03-24
AI Technical Summary
The air intake of existing heat pumps is not concentrated enough, resulting in poor air distribution on the heat exchanger surface and affecting the improvement of heat pump operating efficiency.
An arc-shaped air guide shroud is adopted, with internal guide plates and transverse partitions. The arc shape is designed to reduce resistance and turbulence. The air is evenly dispersed on the surface of the heat exchanger through the guide plates, and the air intake is controlled by the opening and closing structure to adjust the airflow to meet the operating requirements of the heat pump.
It improves the uniform distribution of air on the heat exchanger surface, enhances the heat exchange efficiency and operating efficiency of the heat pump, while reducing noise and avoiding the problem of the heat pump's own heat dissipation effect deteriorating.
Smart Images

Figure CN223778147U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of heat pump technology, specifically relating to an arc-shaped flow guide shroud for improving the operating efficiency of a heat pump. Background Technology
[0002] Heat pump systems typically have clearly defined air inlet and exhaust outlets, which perform different functions during operation.
[0003] The air inlet is the part of the heat pump system where air enters, and it is usually located outside the heat pump unit or near the front end of the heat exchanger. Its main functions include: introducing air; the air inlet is responsible for introducing outside air into the heat pump system to provide sufficient airflow to the heat exchanger to achieve heat transfer.
[0004] The exhaust end is the part of the heat pump system where air is discharged, usually located outside the heat pump unit or near the rear end of the heat exchanger. Its main functions include: discharging air, removing the air after it has passed through the heat exchanger from the system, and completing the heat transfer process.
[0005] In existing technologies, an air intake grille is usually provided on the outside of the air intake end of a heat pump. The purpose of this is to evenly disperse the incoming air, so that the air is evenly distributed on the surface of the heat exchanger, thereby improving the heat exchange efficiency of the incoming air and thus improving the operating efficiency of the heat pump. However, in actual use, because the air drawn in at the air intake end is not concentrated enough (it may be drawn in from the edge of the air intake grille or from the middle), the effect of evenly distributing the air on the surface of the heat exchanger is poor, resulting in a less significant improvement in the operating efficiency of the heat pump. Utility Model Content
[0006] In view of this, the purpose of this utility model is to provide an arc-shaped air guide shroud to improve the operating efficiency of a heat pump, thereby enhancing the air intake effect of the heat pump and thus improving the heat exchange efficiency during operation.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] An arc-shaped airflow guide for improving the operating efficiency of a heat pump includes an airflow guide, which is a curved arc-shaped tube with a diameter at one end connected to the heat pump larger than the diameter at the other end. An installation tube is provided inside the airflow guide, and several guide plates are provided on the installation tube. One side of each guide plate is fixed to the installation tube, and the other side is fixed to the inner wall of the airflow guide. The two ends of the installation tube and the guide plates are flush with the two ends of the airflow guide. Several horizontal partitions are provided on the guide plate at the end of the airflow guide connected to the heat pump inlet. The two ends of each horizontal partition are fixed to the sides of adjacent guide plates, and several vertically arranged horizontal partitions are provided between adjacent guide plates. One end of the airflow guide is connected to the heat pump inlet, and the other end of the airflow guide is located below the heat pump inlet and facing the ground.
[0009] Furthermore, the other end of the air deflector is provided with an opening and closing structure, which is used to control the air intake area at the other end of the air deflector.
[0010] Furthermore, the opening and closing structure includes a hollow spherical shell. A connector is provided at one end of the spherical shell, and the connector connects one end of the spherical shell to the flow guide. A circular baffle is provided inside the spherical shell, and a rotating shaft is provided in the middle of the circular baffle. Both ends of the rotating shaft extend out of the spherical shell. A limiting block is provided at one end of the rotating shaft, and the limiting block is fixed on the rotating shaft. A rotary motor is provided at the other end of the rotating shaft, and the output end of the rotary motor is connected to the rotating shaft. A fixing block is provided on the rotary motor, and the fixing block connects the rotary motor to the spherical shell.
[0011] Furthermore, the connector is a connecting pipe, and the two ends of the connecting pipe are respectively welded to the end of the flow guide and the end of the spherical shell.
[0012] Furthermore, a 3-5mm gap is provided between the edge of the circular baffle and the interior of the spherical shell.
[0013] Furthermore, the circular baffle is provided with a plurality of air inlets, which are evenly distributed on the circular baffle.
[0014] Furthermore, the interior of the mounting tube is hollow.
[0015] Furthermore, the flow guide is provided with a connecting ring at one end connected to the heat pump, and the connecting ring is provided with several bolt holes. The connecting ring is connected to the air inlet end of the heat pump by bolts.
[0016] The beneficial effects of this utility model are as follows:
[0017] When air enters from the end of the deflector, it is divided into multiple flow paths by several deflector plates set in the middle. The flow path refers to the flow space between adjacent deflector plates. The ends of the deflector plates point towards the heat exchanger surface, so the heat exchanger surface has several air intake paths. This allows the air inside the machine to be evenly distributed on the heat exchanger surface. The setting of the transverse partition plates at the end of the deflector forms several exhaust channels, which further disperses the incoming air from each exhaust channel. This further improves the effect of evenly distributing the air on the heat exchanger surface, thereby improving the heat exchange effect and the operating efficiency of the heat pump.
[0018] Other advantages, objectives, and features of this invention will be set forth in the following description and will be apparent to those skilled in the art to some extent, or may be learned by practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description
[0019] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration:
[0020] Figure 1 This is a three-dimensional schematic diagram of the arc-shaped air guide shield of this utility model;
[0021] Figure 2 This is a three-dimensional schematic diagram of the air guide shield of this utility model;
[0022] Figure 3 This is a three-dimensional schematic diagram of a guide plate installed in the air guide cover of this utility model;
[0023] Figure 4 Exploded view of the opening and closing structure in the arc-shaped fairing of this utility model.
[0024] The following labels are shown in the attached diagram:
[0025] 1. Draft shield; 2. Connecting ring; 3. Mounting tube; 4. Draft plate; 5. Horizontal partition; 6. Spherical shell; 7. Connecting tube; 8. Circular baffle; 9. Limiting block; 10. Rotating shaft; 11. Rotary motor; 12. Fixing block; 13. Bolt hole. Detailed Implementation
[0026] like Figures 1-4As shown, an arc-shaped flow guide for improving the operating efficiency of a heat pump includes a flow guide 1, which is a curved arc-shaped tube with a diameter at one end connected to the heat pump that is larger than the diameter at the other end. The specific diameter can be set according to actual conditions. An installation tube 3 is provided inside the flow guide 1, and several flow guide plates 4 are provided on the installation tube 3. One side of the flow guide plate 4 is fixed to the installation tube 3, and the other side of the flow guide plate 4 is fixed to the inner wall of the flow guide 1. The two ends of the installation tube 3 and the flow guide plate 4 are flush with the two ends of the flow guide 1. Several horizontal partition plates 5 are provided on the flow guide plate 4 at the end of the flow guide 1 that is connected to the heat pump inlet. The two ends of the several horizontal partition plates 5 are respectively fixed to the side of the adjacent flow guide plate 4, and several vertically arranged horizontal partition plates 5 are provided between the adjacent flow guide plates 4. One end of the flow guide 1 is connected to the heat pump inlet, and the other end of the flow guide 1 is located below the heat pump inlet and facing the ground.
[0027] The working principle of the above technical solution is as follows:
[0028] When air enters from the end of the shroud 1, it is divided into multiple flow paths by several guide plates 4 set in the middle. The flow path refers to the flow space between adjacent guide plates 4. The ends of the guide plates 4 point towards the surface of the heat exchanger. Therefore, the surface of the heat exchanger has several air inlet paths, which can achieve the uniform distribution of the air inside the machine on the surface of the heat exchanger. The setting of the transverse partition 5 forms several exhaust channels at the end of the shroud 1, which further separates the incoming air and discharges it evenly, improving the heat exchange effect and thus improving the operating efficiency of the heat pump. It's easy to understand that the design of the air deflector 1, with one end larger than the other, allows air to be drawn in through the smaller diameter end, enabling better air collection and thus improving the airflow distribution within the various flow spaces. Furthermore, the smaller section is positioned below the heat pump's air intake end and facing the ground. This design prevents rainwater from entering the heat pump and also avoids drawing in heat generated by the heat pump itself by keeping the air intake end away from the heat pump. This would prevent the air deflector 1 from overheating and transferring heat to the heat pump's casing, thus reducing the heat pump's cooling performance.
[0029] Meanwhile, the advantage of the arc-shaped design of the deflector 1 is that it can effectively reduce the resistance and turbulence when the air enters. The inner surface of the arc-shaped deflector 1 is usually designed as a smooth curved surface to guide the air smoothly into the heat pump system. At the same time, it can also reduce the impact force of the airflow when entering the heat exchanger, thereby reducing noise and improving heat exchange efficiency.
[0030] In one feasible embodiment, the other end of the fairing 1 is provided with an opening and closing structure to control the air intake area at the other end of the fairing 1. The opening and closing structure includes a hollow spherical shell 6, one end of which is provided with a connector that connects one end of the spherical shell 6 to the fairing 1. The interior of the spherical shell 6 is provided with a circular baffle 8, and the center of the circular baffle 8 is provided with a rotating shaft 10. Both ends of the rotating shaft 10 extend out of the spherical shell 6. One end of the rotating shaft 10 is provided with a limiting block 9, which is fixed to the rotating shaft 10. The other end of the rotating shaft 10 is provided with a rotary motor 11, the output end of which is connected to the rotating shaft 10. The rotary motor 11 is provided with a fixing block 12, which connects the rotary motor 11 to the spherical shell 6.
[0031] The rotation of the rotary motor 11 drives the rotating shaft 10 to rotate, which in turn drives the circular baffle 8 to rotate, thereby controlling the sealing area of the circular baffle 8 inside the spherical shell 6, and thus directly controlling the air intake. In other words, this technology can control the air intake of the heat pump by controlling the air intake area, and can flexibly adjust the airflow according to the operating requirements of the heat pump system.
[0032] In one feasible embodiment, the connector is a connecting pipe 7, with its two ends welded to the end of the flow guide shroud 1 and the end of the spherical shell 6, respectively.
[0033] In one feasible embodiment, a 3-5 mm gap is provided between the edge of the circular baffle and the interior of the spherical housing 6. The advantage of leaving a gap is that it prevents the circular baffle 8 from completely blocking the inner wall of the spherical housing 6 in the event of a malfunction of the rotary motor 11, thus preventing the heat pump from taking in air. It also prevents the circular baffle 8 from getting stuck on the inner wall of the spherical housing 6.
[0034] In one feasible embodiment, a plurality of air inlets are provided on the circular baffle 8, and the plurality of air inlets are evenly distributed on the circular baffle 8. The advantage of providing air inlets on the circular baffle 8 as described above is that the air intake area can be adjusted in coordination with the angle of the circular baffle 8, thereby increasing the range of adjustment of the air intake volume and better matching the various power operating requirements of the heat pump.
[0035] In one feasible approach, the interior of the mounting pipe 3 is hollow, which allows air to enter and act on the heat exchanger, thus avoiding a blind spot in the middle of the heat exchanger that comes into contact with the air.
[0036] In one feasible embodiment, the deflector 1 is provided with a connecting ring 2 at one end connected to the heat pump. The connecting ring 2 is provided with several bolt holes 13. The connecting ring 2 is connected to the air inlet end of the heat pump by bolts. Of course, it can also be connected by other means, such as riveting.
[0037] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.
Claims
1. An arc-shaped flow guide for improving the operating efficiency of a heat pump, characterized in that: The device includes a flow guide (1), which is a curved arc-shaped tube with a diameter at one end connected to the heat pump that is larger than the diameter at the other end. An installation tube (3) is provided inside the flow guide (1), and several flow guide plates (4) are provided on the installation tube (3). One side of each flow guide plate (4) is fixed to the installation tube (3), and the other side is fixed to the inner wall of the flow guide (1). Both ends of the installation tube (3) and the flow guide plates (4) are connected to the flow guide (1). The two ends of the flow guide (1) are flush with each other. The flow guide (1) is connected to the flow guide plate (4) at one end of the heat pump inlet. Several horizontal partition plates (5) are provided on the flow guide plate (4). The two ends of the several horizontal partition plates (5) are respectively fixed on the side of the adjacent flow guide plate (4). Several vertically arranged horizontal partition plates (5) are provided between the adjacent flow guide plates (4). One end of the flow guide (1) is connected to the heat pump inlet. The other end of the flow guide (1) is located below the heat pump inlet and faces the ground.
2. The arc-shaped flow guide shroud for improving the operating efficiency of a heat pump according to claim 1, characterized in that: The other end of the air guide (1) is provided with an opening and closing structure, which is used to control the air intake area at the other end of the air guide (1).
3. The arc-shaped flow guide shroud for improving the operating efficiency of a heat pump according to claim 2, characterized in that: The opening and closing structure includes a hollow spherical shell (6), one end of which is provided with a connector, which connects one end of the spherical shell (6) to the flow guide (1). The interior of the spherical shell (6) is provided with a circular baffle (8), and the middle of the circular baffle (8) is provided with a rotating shaft (10). Both ends of the rotating shaft (10) extend out of the spherical shell (6). One end of the rotating shaft (10) is provided with a limiting block (9), which is fixed to the rotating shaft (10). The other end of the rotating shaft (10) is provided with a rotary motor (11), the output end of which is connected to the rotating shaft (10). The rotary motor (11) is provided with a fixing block (12), which connects the rotary motor (11) to the spherical shell (6).
4. The arc-shaped flow guide shroud for improving the operating efficiency of a heat pump according to claim 3, characterized in that: The connector is a connecting pipe (7), and the two ends of the connecting pipe (7) are respectively welded to the end of the flow guide (1) and the end of the spherical shell (6).
5. The arc-shaped flow guide shroud for improving the operating efficiency of a heat pump according to claim 3, characterized in that: A 3-5mm gap is provided between the edge of the circular baffle and the interior of the spherical shell (6).
6. The arc-shaped flow guide shroud for improving the operating efficiency of a heat pump according to claim 3, characterized in that: The circular baffle (8) is provided with a plurality of air inlets, which are evenly distributed on the circular baffle (8).
7. The arc-shaped flow guide for improving the operating efficiency of a heat pump according to claim 1, characterized in that: The installation tube (3) is hollow inside.
8. The arc-shaped flow guide shroud for improving the operating efficiency of a heat pump according to claim 1, characterized in that: The air guide (1) has a connecting ring (2) on one end connected to the heat pump. The connecting ring (2) has several bolt holes (13). The connecting ring (2) is connected to the air inlet of the heat pump by bolts.