A shell of a cabinet type air conditioner indoor unit and a cabinet type air conditioner indoor unit

Abstract

The utility model provides a kind of cabinet type air conditioner indoor unit's shell and cabinet type air conditioner indoor unit, wherein, the shell includes base, front shell, rear shell and top cover, the lower end of the front shell and the rear shell is respectively installed on the base, the front shell and the rear shell between detachable connection, the top cover is installed in the upper end of the front shell and the rear shell;The front shell includes first front shell and second front shell that detachable connection of up and down;Air outlet is provided on the first front shell;The rear shell includes first rear shell and second rear shell that detachable connection of up and down;Air inlet is provided on the first rear shell;The second rear shell with the second front shell is level.The utility model can solve the problem of low material utilization rate, high cost of complete machine and uneven heat exchange caused by the shell structure shared by different models of cabinet type air conditioner indoor unit in the prior art.

Description

Technical Field

[0001] This utility model relates to the technical field of cabinet air conditioner indoor units, specifically to a cabinet air conditioner indoor unit housing and a cabinet air conditioner indoor unit. Background Technology

[0002] Floor-standing air conditioner indoor units are typically used in larger spaces such as living rooms. They consist of a base, front casing, rear casing, top cover, heat exchanger, and fan. The lower ends of the front and rear casings are mounted on the base, while the upper ends connect to the top cover. The front and rear casings are detachably connected, and together they form the casing of the floor-standing air conditioner indoor unit. The front and rear casings each have an air outlet and an air inlet, respectively, forming an air duct between them. The heat exchanger and fan are housed within this duct. When the fan operates, it creates negative pressure within the duct, drawing outside air into the casing through the air inlet. As the air enters the casing, it exchanges heat with the heat exchanger, achieving cooling or heating. Finally, under the action of the fan, the air is blown out through the air outlet, thus realizing the cooling or heating function of the floor-standing air conditioner indoor unit.

[0003] Based on the actual space requirements, common cabinet air conditioner indoor unit models mainly include 3-horsepower and 2-horsepower specifications, with their indoor unit height generally designed to be around 1.7 meters to 1.8 meters. Due to the height of the front and rear plastic casings of cabinet air conditioner indoor units, large molds are required for their creation, resulting in high mold development costs. To reduce mold investment costs, current technology typically only develops dedicated molds for the casings of 3-horsepower models, and directly applies the same casing structure to 2-horsepower models. However, this shared shell structure design has obvious drawbacks: 1. For the 2HP cabinet air conditioner indoor unit, its heat exchange components are small. Using the same shell structure as the 3HP model results in redundant shell structure, which not only leads to low material utilization but also increases the overall cost of the unit; 2. As a key heat exchange component, the evaporator needs to be adapted to a smaller heat exchange area in the 2HP model. Currently, the common approach is to remove some copper tubes from the 3HP evaporator to reduce the area. This results in an irregular appearance of the evaporator after tube removal, affecting the product's aesthetics; moreover, the uneven distribution of heat exchanger pipes can easily lead to uneven airflow distribution, reduced heat exchange efficiency, and affect the overall performance of the unit.

[0004] Therefore, there is an urgent need to provide an optimized structural design scheme for the casing of indoor units of cabinet air conditioners, in order to solve the problems of low material utilization, high overall cost and uneven heat exchange in low-horsepower models caused by the shared casing structure of indoor units of different models of cabinet air conditioners in the existing technology. Utility Model Content

[0005] The purpose of this utility model is to overcome the defects of the prior art and provide a housing and indoor unit of a cabinet air conditioner, which can solve the problems of low material utilization, high overall cost and uneven heat exchange in low-horsepower models caused by the sharing of housing structure among different models of cabinet air conditioner indoor units in the prior art.

[0006] To achieve the above and other objectives, this utility model is implemented through the following technical solution: As a first aspect, this utility model proposes a housing for a cabinet-type air conditioner indoor unit, including a base, a front housing, a rear housing, and a top cover. The lower ends of the front housing and the rear housing are respectively mounted on the base, and the front housing and the rear housing are detachably connected. The top cover is mounted on the upper ends of the front housing and the rear housing. The front housing includes a first front housing and a second front housing that are detachably connected vertically. An air outlet is provided on the first front housing. The rear housing includes a first rear housing and a second rear housing that are detachably connected vertically. An air inlet is provided on the first rear housing. The second rear housing is the same height as the second front housing.

[0007] In one embodiment, the lower end of the first front housing is provided with a first flange, and the upper end of the second front housing is provided with a groove, wherein the first flange is matched and engaged with the groove.

[0008] In one embodiment, a plurality of first fasteners are provided on the first flange, and a through hole is provided on the bottom surface of the groove, through which the first fasteners pass and are fastened to the groove.

[0009] In one embodiment, the lower end of the first rear housing is provided with a second flange, the second flange is provided with a plurality of slots, and the upper inner side of the second rear housing is provided with a plurality of second fasteners, the second fasteners being matched and engaged with the slots.

[0010] In one embodiment, an operation panel is further provided on the first front housing, and the operation panel is located above the air outlet.

[0011] In one embodiment, the first front housing and the first rear housing are detachably connected by snaps and / or screws.

[0012] In one embodiment, the second front housing and the second rear housing are detachably connected by snaps and / or screws.

[0013] As a second aspect, the present invention provides a cabinet-type air conditioner indoor unit, including the housing of the cabinet-type air conditioner indoor unit as described in the first aspect.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model designs the front and rear shells as a detachable connection structure, which allows the base, the second front shell and the second rear shell below, and the top cover of cabinet air conditioner indoor units of different horsepower to be designed with the same structure. Different models are distinguished only by changing the length of the first front shell and the first rear shell. Compared with the scheme of sharing the shell structure for different models of cabinet air conditioner indoor units, this design can reduce the material used in the shell of low-horsepower models, reduce the volume, and save transportation and storage space. According to calculations, after a certain sales volume, the cost reduction of this solution can offset the mold investment cost and generate more profit. On the other hand, it can make the internal evaporator full of copper tubes, which improves the heat exchange uniformity.

[0016] 2. Compared with the scheme of making different sizes of front and rear shell molds for different models of cabinet air conditioner indoor units, the design of this utility model can change the original 2 models that need to make 4 large-size half shells to 2 models that need to make 6 regular-size half shells, and the mold opening cost is significantly lower.

[0017] 3. The first and second front housings of this utility model are connected by a flange with a snap fastener and a groove with a through hole, which can facilitate the installation of the upper and lower housings and achieve a stable snap connection between the upper and lower housings.

[0018] 4. The first and second rear housings of this utility model are connected by a snap-fit ​​mechanism with slots and fasteners, which facilitates installation, disassembly and maintenance.

[0019] 5. The control panel of this utility model is located above the air outlet, which makes it more convenient for the operator to stand and operate. Attached Figure Description

[0020] Figure 1 The diagram shown is a three-dimensional structural schematic of an indoor unit of a cabinet-type air conditioner according to this utility model.

[0021] Figure 2 The image shown is an exploded view of the casing of an indoor unit of a cabinet-type air conditioner according to this utility model.

[0022] Figure 3 Displayed as Figure 2 Enlarged view of point A in the middle.

[0023] Figure 4 Displayed as Figure 2 Enlarged view of point B in the middle.

[0024] Figure 5 The image shown is a magnified view of a portion of the first and second front housings after they are snapped together.

[0025] Figure 6The image shows front views of the indoor units of two different models of cabinet air conditioners (the 3-horsepower model on the left and the 2-horsepower model on the right).

[0026] In the figure, 10 is the base; 21 is the first front housing; 211 is the air outlet; 212 is the control panel; 213 is the first flange; 214 is the first fastener; 22 is the second front housing; 221 is the groove; 222 is the through hole; 31 is the first rear housing; 311 is the air inlet; 312 is the second flange; 313 is the slot; 32 is the second rear housing; 321 is the second fastener; and 40 is the top cover. Detailed Implementation

[0027] Please see Figures 1-6 The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0028] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings of this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0029] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The word "plural" as used herein means two or more. Similarly, words such as "a," "one," or "the" do not indicate a quantity limitation, but are used only to indicate the presence of at least one. Words such as "comprising" or "including" mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents, without excluding other elements or objects. And the term "connection" as used herein, unless otherwise specified, includes both direct and indirect connections.

[0030] like Figure 1As shown, this embodiment provides a cabinet-type air conditioner indoor unit, including a housing formed by a base 10, a front housing, a rear housing, and a top cover 40, as well as a heat exchanger (not shown), a fan (not shown), and an electrical control box (not shown) disposed within the housing; the base 10 is rectangular or circular and is used to support the entire cabinet-type air conditioner indoor unit, and is provided with multiple mounting slots and screw holes for insertion and screw fixing with the protrusions at the lower ends of the front housing and the rear housing; the front housing and the rear housing are arranged opposite each other and are detachably connected by means of snaps and / or screws, for example, first connected by snaps and then tightened with screws, so as to facilitate the disassembly of the rear housing during subsequent maintenance and repair; the top cover 40 is installed on the upper ends of the front housing and the rear housing by screws.

[0031] Since the length of the front and rear casings of different horsepower models is around 1.8 meters, which are large components, the mold opening cost is expensive. Therefore, the conventional practice is to share the casing structure between 3-horsepower and 2-horsepower models. However, sharing the casing structure between different models of cabinet air conditioner indoor units leads to problems such as low utilization rate of casing materials, high overall cost, and uneven heat exchange in lower horsepower models. Therefore, in order to control the mold opening cost while ensuring that it does not cause cost waste and uneven heat exchange in lower horsepower models, this application improves the casing structure. The structure, layout, and connection method of the heat exchanger, fan, and electrical control box in this application all adopt existing technology, which will not be described in detail here.

[0032] Please combine Figure 1 and Figure 2The front housing is designed as a first front housing 21 and a second front housing 22 that are detachably connected vertically. The first front housing 21 has an air outlet 211, which can be vertically oriented and is used to blow out air processed by the heat exchanger. An operation panel 212 is also provided on the first front housing 31, positioned above the air outlet 211 for convenient standing operation. The rear housing is designed as a first rear housing 31 and a second rear housing 32 that are detachably connected vertically. The first rear housing 31 has an air inlet 311 for introducing external air. Multiple air inlets 311 can be provided, evenly spaced vertically. An air inlet grille is installed inside each air inlet 311, and a filter can be added behind the grille to filter the air. Specifically, at least the second front housing 22 and the second rear housing 23 are designed to be of equal height to improve the overall aesthetics. Furthermore, the height of the second front housing 22 and the second rear housing 23 should be approximately 0.7 to 0.8 meters to ensure that the length of the first front housing 21 and the first rear housing 31 conforms to the mold opening size range of small and medium-sized molds. The upper housing space formed by the first front housing 21 and the first rear housing 31, due to the air duct formed by the air inlet 311 and the air outlet 211, is preferentially used for arranging heat exchangers and fans; the lower housing space formed by the second front housing 22 and the second rear housing 23 can be used to arrange electrical control boxes, etc. Under the control of the electrical control box, the fan operates, creating negative pressure in the air duct, allowing external air to enter the housing through the air inlet 311; when the air enters the housing, it exchanges heat with the heat exchanger, achieving cooling or heating of the air; then, under the action of the fan, it is blown out through the air outlet 211 to realize the cooling or heating function of the indoor unit of the cabinet air conditioner.

[0033] like Figure 6 As shown, the base 10, second front housing 22, second rear housing 32, and top cover 40 of the 3-horsepower and 2-horsepower models are designed to have completely identical structures. Then, the length dimensions of the first front housing 21 and the first rear housing 22 are designed differently according to different models. This reduces the need for large molds for the front and rear housings to be controlled by using conventional molds. At the same time, the second front housing 22 and the second rear housing 32 are the same for different horsepower models, which can relatively reduce the number of molds and further reduce the mold cost. It also allows the housing of the small-horsepower model to be adapted to its actual space requirements, avoiding problems such as low housing material utilization, high overall cost, and uneven heat exchange caused by using the housing of the large-horsepower model for the small-horsepower model.

[0034] Please refer to Figure 3 and Figure 5To achieve a detachable connection between the first front housing 21 and the second front housing 22, a full-length first flange 213 can be provided at the lower end of the first front housing 21, while a groove 221 matching the first flange 213 can be provided at the upper end of the second front housing 22. The first flange 213 can be fully embedded in the groove 221 to achieve a snap-fit ​​connection. Furthermore, to achieve a secure snap-fit ​​connection between the first flange 213 and the groove 221, multiple first fasteners 214 can be provided on the first flange 213, and through holes 222 can be provided at corresponding positions on the bottom surface of the groove 221. When the first front housing 21 and the second front housing 22 are connected, the first fasteners 214 can pass through the through holes 222 and complete the snap-fit ​​connection with the groove 221.

[0035] Please refer to Figure 4 In order to achieve a detachable connection between the first rear housing 31 and the second rear housing 32, a second flange 312 can be provided at the lower end of the first rear housing 31, and a plurality of slots 313 can be provided on the second flange 312; at the same time, a plurality of second fasteners 321 are provided on the inner side of the upper end of the second rear housing 32, so that when the first rear housing 31 and the second rear housing 32 are connected, the second fasteners 321 match and engage with the slots 313.

[0036] In summary, this utility model designs the front and rear housings as a detachable connection structure, allowing for identical designs for the base, the second front and rear housings, and the top cover of different horsepower cabinet air conditioner indoor units. Different models are distinguished only by changing the length of the first front and rear housings. Compared to solutions where different models of cabinet air conditioner indoor units share a common housing structure, this design reduces the material used in lower horsepower models, resulting in a smaller volume and saving transportation and storage space. Calculations show that once a certain sales volume is achieved, the cost reduction from this solution can offset mold investment costs, generating more profit. Furthermore, it allows the internal evaporator to be made with full copper tubes, improving heat exchange uniformity.

[0037] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value. The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit this utility model. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A housing for a cabinet-type air conditioner indoor unit, comprising a base, a front housing, a rear housing, and a top cover, wherein the lower ends of the front housing and the rear housing are respectively mounted on the base, the front housing and the rear housing are detachably connected, and the top cover is mounted on the upper ends of the front housing and the rear housing; characterized in that, The front housing includes a first front housing and a second front housing that are detachably connected vertically; the first front housing is provided with an air outlet. The rear housing includes a first rear housing and a second rear housing that are detachably connected vertically; the first rear housing is provided with an air inlet; the second rear housing is at the same height as the second front housing.

2. The housing of the indoor unit of the cabinet-type air conditioner according to claim 1, characterized in that, The lower end of the first front housing is provided with a first flange, and the upper end of the second front housing is provided with a groove, wherein the first flange is matched and engaged with the groove.

3. The housing of the indoor unit of the cabinet air conditioner according to claim 2, characterized in that, The first flange is provided with a plurality of first fasteners, and the bottom surface of the groove is provided with a through hole, through which the first fasteners pass and are fastened to the groove.

4. The casing of the indoor unit of the cabinet-type air conditioner according to any one of claims 1 to 3, characterized in that, The lower end of the first rear housing is provided with a second flange, and the second flange is provided with a plurality of slots. The upper inner side of the second rear housing is provided with a plurality of second fasteners, and the second fasteners are matched and engaged with the slots.

5. The housing of the indoor unit of the cabinet-type air conditioner according to claim 1, characterized in that, An operation panel is also provided on the first front housing, and the operation panel is located above the air outlet.

6. The housing of the indoor unit of the cabinet-type air conditioner according to claim 1, characterized in that, The first front housing and the first rear housing are detachably connected by snaps and / or screws.

7. The housing of the indoor unit of the cabinet air conditioner according to claim 1, characterized in that, The second front housing and the second rear housing are detachably connected by snaps and / or screws.

8. A cabinet-type air conditioner indoor unit, characterized in that, Includes the housing of the cabinet-type air conditioner indoor unit as described in any one of claims 1 to 7.

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