Integrated overhead refrigerating unit
By introducing a diversion and hot air recovery system, the heat dissipation, de-icing and dust prevention problems of the rooftop refrigeration unit when used outdoors are solved, ensuring the stability and protection of the unit and enabling normal operation under different weather conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG FLUSTER REFRIGERATION EQUIPMENT CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-04-28
AI Technical Summary
Integrated rooftop refrigeration units are easily affected by the external environment when used outdoors, leading to problems such as poor heat dissipation, icing, dust accumulation, and damage from falling objects.
The unit employs a structure consisting of a flow divider, an air collection box, a flow divider pipe, a flow guide, and a flow guide pipe to divert and utilize cold and hot air for heat dissipation and de-icing. The air distribution box also prevents dust accumulation and protects the unit itself.
It improves the operational stability of the refrigeration unit, prevents external damage, keeps it clean, and ensures normal operation under different weather conditions.
Smart Images

Figure CN224175268U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of refrigeration unit technology, and more specifically, to an integrated top-mounted refrigeration unit. Background Technology
[0002] Integrated rooftop refrigeration units, also known as integrated roof air conditioning units or whole-unit roof air conditioning units, are large and medium-sized air conditioning equipment that integrates refrigeration, heating and air handling functions.
[0003] Currently, commonly used integrated rooftop refrigeration units installed outdoors are easily affected by external environmental interference during use and may fail to function properly. This can also lead to dust accumulation on their surfaces. For example, an integrated rooftop refrigeration unit disclosed in publication number CN119321648A includes a rooftop plate, a condenser, and an internal fan. The condenser is located at the top of the rooftop plate near the right end, and an external fan is installed at the left end of the condenser. The condenser's interior includes an external condenser and an evaporator. The right end of the rooftop plate has two downvents, one and two, which are located below the condenser.
[0004] As can be seen from the above-disclosed scheme, when the integrated rooftop refrigeration unit is installed outdoors, its heat dissipation effect may be poor in hot summer and its exterior may freeze in cold winter, thus failing to guarantee the stability of the refrigeration unit. Furthermore, the integrated rooftop refrigeration unit installed outdoors is not only prone to dust accumulation, but may also be damaged by falling objects. Utility Model Content
[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide an integrated rooftop refrigeration unit. This integrated rooftop refrigeration unit, through the setting of a distribution shroud, air collection box, distribution pipe, guide shroud, and guide pipe, can divert and utilize both cold and hot air. It can dissipate heat and defrost the exterior of the refrigeration unit in both hot and cold weather, ensuring the working stability of the integrated rooftop refrigeration unit installed outdoors. Furthermore, the setting of the air distribution box not only protects the refrigeration unit body from damage by falling objects, but also allows air to be blown onto its surface through the air blowing holes, thereby preventing dust accumulation.
[0006] To solve the above problems, the present invention adopts the following technical solution.
[0007] An integrated rooftop refrigeration unit includes a refrigeration unit body. An inner fan body and an outer fan body are fixedly installed on the surface of the refrigeration unit body. A cold air diversion mechanism is fixedly installed at the air blowing end of the inner fan body, and one end of the cold air diversion mechanism is fixedly connected to an air distribution box. A hot air recovery mechanism is fixedly installed at the air blowing end of the outer fan body, and one end of the hot air recovery mechanism is fixedly connected to the interior of the air distribution box. The top of the air distribution box is arc-shaped, and the bottom of the air distribution box has an air blowing hole. This integrated rooftop refrigeration unit, through the set diversion hood, air collection box, diversion pipe, guide hood, and guide pipe, can divert and utilize both cold and hot air. It can dissipate heat and defrost the exterior of the refrigeration unit in hot and cold weather, ensuring the working stability of the integrated rooftop refrigeration unit installed outdoors. Furthermore, the set air distribution box not only protects the refrigeration unit body from damage by falling objects, but also allows air to be blown onto its surface through the air blowing hole, thereby preventing dust accumulation.
[0008] Furthermore, the cold air diversion mechanism includes a diversion hood, which is movably sleeved on the air outlet end of the inner fan body. An air collection box is fixedly connected to the inner wall of the diversion hood, and a diversion pipe is fixedly sleeved on the inner wall of the air collection box. A diversion valve is fixedly installed on the surface of the diversion pipe. The air collection box can intercept a portion of the cold air when the inner fan body blows out cold air and guide it into the air distribution box through the diversion pipe.
[0009] Furthermore, the hot air recovery mechanism includes a guide shroud, and a guide groove is provided on the side of the guide shroud. An exhaust nozzle and a guide pipe are fixedly sleeved on the inner wall of the guide groove. The exhaust nozzle facilitates the normal discharge of hot air from the external fan body, and the guide pipe can recover the hot air and guide it into the air distribution box.
[0010] Furthermore, an exhaust valve is fixedly installed on the surface of the exhaust nozzle, and a flow guide valve is fixedly installed on the surface of the flow guide pipe. Both the exhaust valve and the flow guide valve are solenoid valves, which can automatically control the opening and closing of the exhaust nozzle and the flow guide pipe.
[0011] Furthermore, one end of the air blowing hole is fixedly connected to an air distribution chamber, and the inner side wall of the air distribution chamber has a first connecting hole and a second connecting hole respectively, so that the air distribution chamber can distribute the introduced air.
[0012] Furthermore, a partition is fixedly connected to the inner wall of the air distribution chamber. The partition is made of lightweight metal and can increase the air pressure in the air distribution chamber, thereby improving the blowing effect.
[0013] Furthermore, a countersunk groove is provided at the bottom of the refrigeration unit body to accommodate the distribution pipe and ensure that the bottom of the refrigeration unit body is level.
[0014] Compared with existing technologies, the advantages of this utility model are:
[0015] (1) This solution can divert and utilize cold and hot air through the set flow distribution shroud, air collection box, flow distribution pipe, flow guide shroud and flow guide pipe, and can dissipate heat and de-ice the outside of the refrigeration unit in hot and cold weather, thus ensuring the working stability of the integrated rooftop refrigeration unit installed outdoors.
[0016] (2) The air distribution box in this solution can not only protect the main body of the refrigeration unit and prevent falling objects from damaging the main body of the refrigeration unit, but also blow air on its surface through the air blowing hole, thereby avoiding dust accumulation. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 A bottom view of the installation structure of the refrigeration unit body and the internal fan body of this utility model;
[0019] Figure 3 for Figure 2 A schematic diagram of the installation structure of the manifold and manifold;
[0020] Figure 4 This is a cross-sectional view of the air distribution box structure of this utility model;
[0021] Figure 5 This is a schematic diagram of the installation structure of the flow guide cover and flow guide pipe of this utility model.
[0022] Explanation of the labels in the diagram:
[0023] 1. Refrigeration unit body; 11. Countersunk groove; 2. Inner fan body; 3. Outer fan body; 4. Flow divider; 41. Air collection box; 42. Flow divider pipe; 43. Flow divider valve; 5. Flow guide shroud; 51. Flow guide groove; 52. Exhaust nozzle; 53. Exhaust valve; 54. Flow guide pipe; 55. Flow guide valve; 6. Air distribution box; 61. Air distribution chamber; 62. Partition plate; 63. Air blowing hole; 64. First connection hole; 65. Second connection hole. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Example 1
[0026] Please see Figure 1-5An integrated top-mounted refrigeration unit includes a refrigeration unit body 1. The refrigeration unit body 1 also houses an evaporator, a condenser, a control assembly, and sterilization components. Its composition and working principle are existing technologies and will not be described in detail here. An internal fan body 2 and an external fan body 3 are fixedly installed on the surface of the refrigeration unit body 1. The external fan body 3 is used to improve the heat dissipation effect of the condenser and is existing technology. The internal fan body 2 is used to blow cold air into the room and is existing technology. A cold air distribution mechanism is fixedly installed at the air outlet of the internal fan body 2. The cold air distribution mechanism includes a distribution hood 4, which is movably sleeved on the air outlet of the internal fan body 2. A gas collection box 41 is fixedly connected to the inner wall of the distribution hood 4, and a distribution pipe 42 is fixedly sleeved on the inner wall of the gas collection box 41. The surface of the distribution pipe 42... A diversion valve 43 is fixedly installed on the surface. The diversion valve 43 is also a solenoid valve, which facilitates the automatic opening and closing of the diversion pipe 42. The air collection box 41 can intercept a portion of the cold air when the inner fan body 2 blows out cold air and guide it into the air distribution box 6 through the diversion pipe 42. One end of the cold air diversion mechanism is fixedly connected to the air distribution box 6. A hot air recovery mechanism is fixedly installed on the blowing end of the outer fan body 3. The hot air recovery mechanism includes a guide shroud 5. A guide groove 51 is provided on the side of the guide shroud 5. An exhaust nozzle 52 and a guide pipe 54 are fixedly sleeved on the inner wall of the guide groove 51. The exhaust nozzle 52 facilitates the normal discharge of hot air from the outer fan body 3. The guide pipe 54 can recover the hot air and guide it into the air distribution box 6. One end of the hot air recovery mechanism is fixedly connected to the inside of the air distribution box 6. The top of the air distribution box 6 is arc-shaped, and the bottom of the air distribution box 6 has an air blowing hole 63.
[0027] An exhaust valve 53 is fixedly installed on the surface of the exhaust nozzle 52, and a guide valve 55 is fixedly installed on the surface of the guide pipe 54. Both the exhaust valve 53 and the guide valve 55 are solenoid valves, which can automatically control the opening and closing of the exhaust nozzle 52 and the guide pipe 54. One end of the air blowing hole 63 is fixedly connected to the air distribution chamber 61. The inner side wall of the air distribution chamber 61 has a first connection hole 64 and a second connection hole 65 respectively. The air distribution chamber 61 can distribute the introduced air.
[0028] A partition 62 is fixedly connected to the inner wall of the air distribution chamber 61. The partition 62 is made of lightweight metal. The partition 62 can increase the air pressure in the air distribution chamber 61 and improve the blowing effect. A countersunk groove 11 is provided at the bottom of the refrigeration unit body 1. The countersunk groove 11 is used to receive the diversion pipe 42 and ensure that the bottom of the refrigeration unit body 1 is horizontal.
[0029] In hot summers, this integrated top-mounted refrigeration unit can open the diversion valve 43 to collect some of the cool air blown out by the internal fan body 2. This collected air is then guided through the diversion pipe 42 into the air distribution box 6 and blown downwards through the air outlet 63 onto the surface of the refrigeration unit body 1 for cooling and dust removal. Simultaneously, the guide valve 55 is closed, and the exhaust valve 53 is open, allowing the hot air blown out by the external fan body 3 to be normally exhausted through the exhaust nozzle 52. In cold winters, the exhaust valve 53 can be closed, and the diversion valve 55 can be opened, allowing the hot air blown out by the external fan body 3 to be guided through the diversion pipe 54 into the air distribution box 6 and then blown downwards through the air outlet 63 onto the surface of the refrigeration unit body 1 for cooling and dust removal. The air vent 63 blows air onto the surface of the refrigeration unit body 1 for heating and de-icing. At the same time, the diversion valve 43 is in the closed state. Through the diversion shroud 4, air collection box 41, diversion pipe 42, guide shroud 5 and guide pipe 54, cold air and hot air can be diverted and utilized. This allows for heat dissipation and de-icing of the refrigeration unit's exterior in both hot and cold weather, ensuring the working stability of the integrated rooftop refrigeration unit installed outdoors. Furthermore, the air distribution box 6 not only protects the refrigeration unit body 1 from falling objects, but also blows air onto its surface through the air vent 63, thus preventing dust accumulation.
[0030] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.
Claims
1. An integrated top-mounted refrigeration unit, comprising a refrigeration unit body (1), wherein an internal fan body (2) and an external fan body (3) are fixedly mounted on the surface of the refrigeration unit body (1), characterized in that: The inner fan body (2) is fixedly equipped with a cold air diversion mechanism at the blowing end. One end of the cold air diversion mechanism is fixedly connected to an air distribution box (6). The outer fan body (3) is fixedly equipped with a hot air recovery mechanism at the blowing end. One end of the hot air recovery mechanism is fixedly connected to the inside of the air distribution box (6). The top of the air distribution box (6) is arc-shaped, and the bottom of the air distribution box (6) has an air blowing hole (63).
2. The integrated top-mounted refrigeration unit according to claim 1, characterized in that: The cold air diversion mechanism includes a diversion hood (4), which is movably sleeved on the air outlet of the inner fan body (2). An air collection box (41) is fixedly connected to the inner wall of the diversion hood (4), and a diversion pipe (42) is fixedly sleeved on the inner wall of the air collection box (41). A diversion valve (43) is fixedly installed on the surface of the diversion pipe (42).
3. The integrated top-mounted refrigeration unit according to claim 1, characterized in that: The hot air recovery mechanism includes a flow guide shroud (5), and a flow guide groove (51) is provided on the side of the flow guide shroud (5). An exhaust nozzle (52) and a flow guide pipe (54) are fixedly sleeved on the inner wall of the flow guide groove (51).
4. The integrated top-mounted refrigeration unit according to claim 3, characterized in that: An exhaust valve (53) is fixedly installed on the surface of the exhaust nozzle (52), and a flow guide valve (55) is fixedly installed on the surface of the flow guide pipe (54). Both the exhaust valve (53) and the flow guide valve (55) are solenoid valves.
5. The integrated top-mounted refrigeration unit according to claim 1, characterized in that: One end of the air blowing hole (63) is fixedly connected to the air distribution chamber (61), and the inner side wall of the air distribution chamber (61) is respectively provided with a first connecting hole (64) and a second connecting hole (65).
6. The integrated top-mounted refrigeration unit according to claim 5, characterized in that: The inner wall of the air distribution chamber (61) is fixedly connected to a partition (62), which is made of lightweight metal.
7. The integrated top-mounted refrigeration unit according to claim 1, characterized in that: The bottom of the refrigeration unit body (1) is provided with a countersunk groove (11).
Citation Information
Patent Citations
Integrated overhead refrigerating unit
CN119321648A