A chassis for a sideless variable frequency air-cooled heat pump air conditioning unit

Abstract

This utility model discloses a sideless inverter air-cooled heat pump air conditioning unit chassis, including a chassis base plate, a front crossbeam, and a rear crossbeam. Corner block connectors are provided around the bottom of the chassis base plate, and the front and rear crossbeams are installed on the front and rear sides of the chassis base plate via these corner block connectors. A heat exchanger support longitudinal beam and several compressor support longitudinal beams are provided between the front and rear crossbeams; these beams are respectively located on the left and right sides between the front and rear crossbeams. This sideless inverter air-cooled heat pump air conditioning unit chassis of this utility model greatly expands the direction of on-site piping, allowing piping to be connected from both the left and right sides, providing significant convenience for on-site installation.

Description

Technical Field

[0001] This utility model belongs to the field of air conditioning technology, and in particular relates to a chassis for a sideless variable frequency air-cooled heat pump air conditioning unit. Background Technology

[0002] Variable frequency air-cooled heat pump air conditioning units have been widely used in the field of medical purification, especially in the makeshift hospitals, sophisticated medical laboratories, and high-standard clean medical rooms that have emerged in recent years, thanks to their compact size and excellent performance.

[0003] Traditional air-cooled heat pump air conditioning unit chassis designs mostly employ a side-mounted structure. For locations with limited installation space, such as small equipment rooms or reserved locations in old building renovation projects, the unit's piping can only be installed from the front and rear, making it unsuitable for varying on-site installation environments.

[0004] From a manufacturing perspective, chassis with side panels involve more processing steps, requiring multiple bending and welding processes to form the side panels. This not only consumes a lot of manpower and material resources, increasing production costs, but the complex process can also easily introduce processing errors, affecting the overall precision and quality stability of the chassis, which may lead to problems such as increased vibration and noise during unit operation.

[0005] In the maintenance and upkeep of air conditioning units, the side chassis can hinder the operation of maintenance personnel. For example, when it is necessary to inspect critical components such as the compressor and heat exchanger at the bottom of the unit, the side structure makes it difficult for maintenance tools to reach the bottom working area smoothly, increasing the difficulty and time cost of maintenance and reducing maintenance efficiency.

[0006] With the increasing demands for refined space utilization in modern architecture, and the pursuit of cost reduction, efficiency improvement, and enhanced product maintainability in the air conditioning manufacturing industry, existing side-cooled heat pump air conditioning unit chassis can no longer meet market demands. An innovative chassis design is needed, and the sideless inverter air-cooled heat pump air conditioning unit chassis can solve the problems we face above. Utility Model Content

[0007] In view of this, the present invention aims to provide a sideless variable frequency air-cooled heat pump air conditioning unit chassis to solve at least one technical problem in the background art.

[0008] A chassis for a sideless variable frequency air-cooled heat pump air conditioning unit includes a chassis base plate, a front crossbeam, and a rear crossbeam. The bottom of the chassis floor is equipped with corner block connectors around the perimeter, and the front and rear crossbeams are installed on the front and rear sides of the chassis floor via the corner block connectors.

[0009] Between the front crossbeam and the rear crossbeam, there is a heat exchange support longitudinal beam and several compressor support longitudinal beams; The heat exchanger support beam and several compressor support beams are respectively set on the left and right sides between the front crossbeam and the rear crossbeam; Several evenly distributed heat exchanger drain holes are provided on the left, right and rear sides of the chassis bottom plate near the heat exchanger support longitudinal beam. The chassis bottom plate has heat exchanger end plate fixing holes on the side near the heat exchanger support longitudinal beam; The chassis base plate has compressor bolt positioning holes on the side near the compressor support longitudinal beam; The chassis base plate has several chassis-corner block connection holes around its perimeter.

[0010] Furthermore, the rear crossbeam has rear crossbeam-corner block connection holes on both sides for connection with corner block connectors, and two first ventilation holes on the rear crossbeam.

[0011] Furthermore, the front crossbeam has front crossbeam-corner block connection holes on both sides for connecting with the corner block connectors, and two second ventilation holes on the front crossbeam.

[0012] Furthermore, the longitudinal beam supporting the heat exchanger is provided with several first mounting holes corresponding to the fixing holes of the heat exchanger end plate.

[0013] Furthermore, the compressor support longitudinal beam is provided with several second mounting holes corresponding to the compressor bolt positioning holes.

[0014] Furthermore, the corner block connector includes a first connecting plate, a second connecting plate, and a third connecting plate; Three second connecting plates are perpendicularly arranged around the front side of the first connecting plate, and a third connecting plate is perpendicularly arranged around the rear side of the first connecting plate. The second connecting plate is provided with a third mounting hole for connecting to the chassis bottom plate, and the third connecting plate is provided with a fourth mounting hole for connecting to the front crossbeam or the rear crossbeam.

[0015] To achieve the above objectives, the technical solution of this utility model is implemented as follows: Compared with existing technologies, the sideless variable frequency air-cooled heat pump air conditioning unit chassis of this utility model has the following advantages: 1. The sideless inverter air-cooled heat pump air conditioning unit chassis described in this utility model has a widened range of on-site piping directions due to its sideless design, allowing piping to be connected from both the left and right sides, which greatly facilitates on-site installation.

[0016] 2. The sideless variable frequency air-cooled heat pump air conditioning unit chassis of this utility model has sheet metal bending edges on the four sides of the chassis bottom plate facing downwards. During the operation of the unit, especially during defrosting, the water generated can be drained in time, avoiding water accumulation around the chassis in winter and causing ice formation.

[0017] 3. The chassis of the sideless variable frequency air-cooled heat pump air conditioning unit described in this utility model has three rows of round holes on the back and left sides of the chassis base plate. The heat exchanger of the air conditioning unit is located at the top of these three rows of round holes. This is mainly to prevent the air conditioning compressor, container, etc. from being immersed in water during heavy rain, which could cause the air conditioning unit to malfunction or experience performance degradation.

[0018] 4. In order to enhance the overall strength of the sideless variable frequency air-cooled heat pump air conditioning unit chassis described in this utility model, a heat exchange longitudinal beam is added to the left side of the chassis. This not only increases the strength of the load-bearing heat exchanger, but also increases the overall strength of the chassis. At the same time, in order not to affect drainage, the longitudinal beam is perforated, and the chassis bottom plate is perforated simultaneously.

[0019] 5. The sideless variable frequency air-cooled heat pump air conditioning unit chassis of this utility model has sufficient ventilation space reserved under the chassis to meet heat dissipation requirements. Combined with the airflow direction of the unit's fan, it forms an efficient heat dissipation channel to ensure that the heat generated by the compressor, electronic control components and other heat-generating components can be dissipated in time, maintain the normal operating temperature range of the unit, and ensure the stable and efficient operation of the air conditioning unit. Attached Figure Description

[0020] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings: Figure 1 This is a schematic diagram of the exploded structure of the chassis of a sideless variable frequency air-cooled heat pump air conditioning unit in an embodiment of this utility model; Figure 2 This is a schematic diagram of the chassis structure of a sideless variable frequency air-cooled heat pump air conditioning unit in an embodiment of this utility model; Figure 3 This is a schematic diagram of the internal sheet metal connection of a chassis assembly of a sideless variable frequency air-cooled heat pump air conditioning unit in an embodiment of this utility model; Figure 4 This is a schematic diagram of the chassis base plate of a sideless variable frequency air-cooled heat pump air conditioning unit in an embodiment of this utility model; Figure 5 This is a schematic diagram of a corner block connector on the chassis bottom plate of a sideless variable frequency air-cooled heat pump air conditioning unit according to an embodiment of this utility model; Figure 6 This is a schematic diagram of the front crossbeam of the chassis bottom plate of a sideless variable frequency air-cooled heat pump air conditioning unit in an embodiment of this utility model.

[0021] Explanation of reference numerals in the attached figures: 1. Chassis base plate; 1-1. Heat exchanger drain hole; 1-2. Heat exchanger end plate fixing hole; 1-3. Compressor bolt positioning hole; 1-4. Chassis-corner block connection hole; 2. Rear crossbeam; 3. Front crossbeam; 4. Heat exchanger support longitudinal beam; 5. Compressor support longitudinal beam; 6. Corner block connector; 6-1. First connecting plate; 6-2. Second connecting plate; 6-3. Third connecting plate; 6-4. Third mounting hole; 6-5. Fourth mounting hole; 7. First vent hole; 8. First mounting hole; 9. Second mounting hole. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.

[0026] Example 1 A chassis for a sideless variable frequency air-cooled heat pump air conditioning unit includes a chassis base plate 1, a front crossbeam 3, and a rear crossbeam 2; corner block connectors 6 are provided around the bottom of the chassis base plate 1, and the front crossbeam 3 and the rear crossbeam 2 are installed on the front and rear sides of the chassis base plate 1 through the corner block connectors 6. Between the front crossbeam 3 and the rear crossbeam 2, there is a heat exchange support longitudinal beam 4 and several compressor support longitudinal beams 5; the heat exchange support longitudinal beam 4 and several compressor support longitudinal beams 5 are respectively set on the left and right sides between the front crossbeam 3 and the rear crossbeam 2; the chassis base plate 1 has several evenly distributed heat exchanger drain holes 1-1 on the left and right sides and the rear side near the heat exchange support longitudinal beam 4; the chassis base plate 1 has heat exchanger end plate fixing holes 1-2 on the side near the heat exchange support longitudinal beam 4; the chassis base plate 1 has compressor bolt positioning holes 1-3 on the side near the compressor support longitudinal beam 5; the chassis base plate 1 has several chassis-corner block connection holes 1-4 around its perimeter; the rear crossbeam 2 has rear crossbeam 2-corner block connection holes on both sides that connect to the corner block connector 6, and the rear crossbeam 2 has two first vent holes 7. The front crossbeam 3 has front crossbeam 3-corner block connection holes on both sides that connect to the corner block connector 6, and the front crossbeam 3 has two second vent holes. The heat exchanger support longitudinal beam 4 is provided with several first mounting holes 8 corresponding to the heat exchanger end plate fixing holes 1-2; the compressor support longitudinal beam 5 is provided with several second mounting holes 9 corresponding to the compressor bolt positioning holes 1-3.

[0027] The corner block connector 6 includes a first connecting plate 6-1, a second connecting plate 6-2, and a third connecting plate 6-3; the three second connecting plates 6-2 are vertically arranged around the front side of the first connecting plate 6-1, and the third connecting plate 6-3 is vertically arranged on the rear side of the first connecting plate 6-1; the second connecting plate 6-2 is provided with a third mounting hole 6-4 for connecting with the chassis bottom plate 1, and the third connecting plate 6-3 is provided with a fourth mounting hole 6-5 for connecting with the front crossbeam 3 or the rear crossbeam 2.

[0028] Example 2 like Figure 1 As shown, all components of a sideless variable frequency air-cooled heat pump air conditioning unit chassis are connected by M6 stainless steel bolts. The sideless variable frequency air-cooled heat pump air conditioning unit chassis includes a chassis base plate 1, a rear crossbeam 2, a front crossbeam 3, a heat exchange support longitudinal beam 4, a compressor support longitudinal beam 5, and corner block connectors 6.

[0029] The chassis base plate is provided with heat exchanger drain hole 1-1, heat exchanger end plate fixing hole 1-2, compressor bolt positioning hole 1-3, and chassis-corner block connection hole 1-4; like Figure 1As shown, first place the front crossbeam 3 and connect the heat exchange support longitudinal beam 4 and the compressor support longitudinal beam 5. Then, connect the rear crossbeam 2 to the heat exchange support longitudinal beam 4 and the compressor support longitudinal beam 5 using M6 bolts. Four corner block connectors 6 are placed at the four corners of the chassis and connected to the rear crossbeam 2 and the two sides of the front crossbeam 3 using M6 bolts. The chassis base plate 1 is fixed to... Figure 3 On the internal sheet metal connector shown.

[0030] like Figure 4 The diagram shows a schematic of the chassis base plate of a sideless variable frequency air-cooled heat pump air conditioning unit according to an embodiment of this utility model. The openings on the chassis base plate 1 are: heat exchanger drain hole 1-1, heat exchanger end plate fixing hole 1-2, compressor bolt positioning hole 1-3, and chassis-corner block connection hole 1-4. The heat exchanger drain hole 1-1 is located on the left, right, and rear sides of the chassis base plate, with left and right L-shaped heat exchangers placed above each hole to achieve rapid drainage. The heat exchanger end plate fixing hole 1-2 is used for positioning the heat exchanger. A symmetrical hole on the right side of the chassis base plate 1 also serves as a heat exchanger end plate fixing hole, ensuring that the heat exchanger does not shift during unit transportation and operation. The compressor bolt positioning hole 1-3 and chassis-corner block connection hole 1-4 are connection and fixing holes between the chassis base plate and the corner block connector.

[0031] like Figure 4 As shown, the longitudinal beams connecting the heat exchanger support beam 4 and the compressor support beam 5 not only serve as load-bearing beams for the heat exchanger and compressor, but also act as reinforcing ribs. These reinforcing ribs are rationally distributed according to mechanical principles, effectively enhancing the chassis's vibration resistance. This ensures that even when components such as the compressor operate at high speeds and generate significant impact forces during variable frequency speed regulation, the chassis remains stable, reducing the impact of vibration on other components of the unit and the surrounding environment.

[0032] like Figure 2 As shown, the sideless inverter air-cooled heat pump air conditioning unit chassis on both the left and right sides also takes into account heat dissipation requirements. Sufficient ventilation space is reserved under the chassis, which, together with the airflow direction of the unit's fan, forms an efficient heat dissipation channel. This ensures that the heat generated by the compressor, electronic control components and other heat-generating parts can be dissipated in a timely manner, maintaining the normal operating temperature range of the unit and ensuring the stable and efficient operation of the air conditioning unit.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A chassis for a sideless variable frequency air-cooled heat pump air conditioning unit, characterized in that: Including chassis floor, front crossbeam, and rear crossbeam; The bottom of the chassis floor is equipped with corner block connectors around the perimeter. The front and rear crossbeams are installed on the front and rear sides of the chassis floor via the corner block connectors. Between the front crossbeam and the rear crossbeam, there is a heat exchange support longitudinal beam and several compressor support longitudinal beams; The heat exchanger support beam and several compressor support beams are respectively set on the left and right sides between the front crossbeam and the rear crossbeam; Several evenly distributed heat exchanger drain holes are provided on the left, right and rear sides of the chassis bottom plate near the heat exchanger support longitudinal beam. The chassis bottom plate has heat exchanger end plate fixing holes on the side near the heat exchanger support longitudinal beam; The chassis base plate has compressor bolt positioning holes on the side near the compressor support longitudinal beam; The chassis base plate has several chassis-corner block connection holes around its perimeter.

2. The chassis of a sideless variable frequency air-cooled heat pump air conditioning unit according to claim 1, characterized in that: The rear crossbeam has rear crossbeam-corner block connection holes on both sides for connecting to the corner block connector, and two first ventilation holes on the rear crossbeam.

3. The chassis of a sideless variable frequency air-cooled heat pump air conditioning unit according to claim 1, characterized in that: The front crossbeam has front crossbeam-corner block connection holes on both sides for connecting to the corner block connectors, and two second ventilation holes on the front crossbeam.

4. The chassis of a sideless variable frequency air-cooled heat pump air conditioning unit according to claim 1, characterized in that: The longitudinal beam supporting the heat exchanger has several first mounting holes corresponding to the fixing holes of the heat exchanger end plate.

5. The chassis of a sideless variable frequency air-cooled heat pump air conditioning unit according to claim 1, characterized in that: The compressor support longitudinal beam is provided with several second mounting holes corresponding to the compressor bolt positioning holes.

6. The chassis of a sideless variable frequency air-cooled heat pump air conditioning unit according to claim 1, characterized in that: The corner block connector includes a first connecting plate, a second connecting plate, and a third connecting plate; Three second connecting plates are perpendicularly arranged around the front side of the first connecting plate, and a third connecting plate is perpendicularly arranged around the rear side of the first connecting plate. The second connecting plate is provided with a third mounting hole for connecting to the chassis bottom plate, and the third connecting plate is provided with a fourth mounting hole for connecting to the front crossbeam or the rear crossbeam.

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