Mounting structure of evaporator assembly and cabinet air conditioner thereof

Abstract

The invention provides a mounting structure of an evaporator assembly. The mounting structure comprises a direct discharge evaporator; the two mounting brackets are separably arranged on a rear frame of the cabinet air conditioner and jointly form a mounting cavity for mounting the direct-discharge evaporator; the plurality of electric heating modules are arranged between the two mounting brackets; the fixing assembly comprises a plurality of first mounting holes formed in the mounting support and a plurality of second mounting holes formed in the rear frame, and the first mounting holes correspond to the second mounting holes one to one. A traditional U-shaped evaporator is replaced by the in-line evaporator, a rotation space of an elbow section does not need to be reserved any more, the mounting cavity is formed in the rear frame through the two separable mounting supports, the evaporator can be mounted in the indoor unit of the air conditioner in a more compact mode, and the size of the air conditioner in the depth direction is effectively reduced; and meanwhile, the mounting bracket is matched with the second mounting hole in the rear frame through the first mounting hole and is directly locked and fixed through a screw, so that the structure is simple and the mounting is convenient.

Description

An evaporator assembly mounting structure and its air conditioning unit Technical Field

[0001] This invention relates to the field of air conditioning indoor unit technology, specifically to an evaporator assembly mounting structure and its air conditioning cabinet unit. Background Technology

[0002] Currently, most floor-standing air conditioner indoor units on the market use a U-shaped evaporator. This U-shaped evaporator consists of two parallel vertical sections and a bottom bend connecting the two. While this structure increases the heat exchange area, it also brings the following drawbacks:

[0003] (1) Large overall thickness and low space utilization: Due to the need to reserve the turning space of the bend section for the U-shaped structure, the installation structure of the evaporator assembly has a large dimension (i.e. thickness) in the depth direction of the air conditioner. This makes it difficult to achieve an ultra-thin design for the indoor unit of the air conditioner and occupies a lot of indoor space.

[0004] (2) Complex assembly structure and high cost: Fixing the U-shaped evaporator usually requires the design of a special and complex evaporator bracket, which needs to be assembled with the rear frame of the air conditioner at multiple points and angles. This not only increases the cost of molds and materials, but also makes the production and assembly process cumbersome and inefficient;

[0005] (3) Poor adaptability of electric heating modules: In the existing U-shaped evaporator assembly installation structure, the auxiliary electric heating modules (such as PTC heaters) are usually designed as long strips and fixedly installed on the upper and lower supports of the evaporator. This installation method requires that the length of the electric heating module must match the overall length of the evaporator. Therefore, for cabinet air conditioners of different capacities and models, electric heating modules of different lengths need to be developed, which makes it impossible to achieve standardization and universality of electric heating modules, thus increasing production costs. Summary of the Invention

[0006] In view of the shortcomings of the prior art, the purpose of this invention is to provide an evaporator assembly installation structure and its air conditioning unit, so as to solve the problems of large overall thickness, complex assembly structure and poor compatibility of electric heating module that are common in the U-shaped evaporator installation structure of the prior art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An evaporator assembly mounting structure, installed on the rear frame of an air conditioning unit, includes:

[0009] The evaporator is installed vertically with a direct discharge configuration.

[0010] Two mounting brackets are detachably mounted on the rear frame and together form a mounting cavity for mounting the direct-vent evaporator;

[0011] Multiple electric heating modules are disposed between the two mounting brackets and spaced apart along the length of the direct-vent evaporator;

[0012] The fixing component includes a plurality of first mounting holes formed in the mounting bracket and a plurality of second mounting holes formed in the rear frame, wherein the plurality of first mounting holes and the plurality of second mounting holes correspond one-to-one and are all used for screws to pass through and be locked.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. By using a direct-vent evaporator instead of the traditional U-shaped evaporator, there is no need to reserve space for the bend section. The evaporator can be installed in the indoor unit of the air conditioner in a more compact manner by forming a mounting cavity on the rear frame through two separable mounting brackets, which effectively reduces the size of the air conditioner in the depth direction. At the same time, the mounting brackets are engaged with the second mounting hole on the rear frame through the first mounting hole and are directly locked with screws. Its structure is simple and easy to install.

[0015] 2. By setting multiple electric heating modules spaced apart along the length of the straight-flow evaporator between two mounting brackets, the heating requirements of evaporators with different capacities and heights can be met; at the same time, multiple electric heating modules also make the heating area more uniformly covered, effectively improving heating efficiency.

[0016] Furthermore, each of the mounting brackets is connected to the direct-vent evaporator via a connecting plate.

[0017] Furthermore, the connecting plate has an arc-shaped structure.

[0018] Furthermore, the mounting bracket has a flange extending outward along its edge, and a plurality of the first mounting holes are formed in the flange.

[0019] Furthermore, the rear frame is provided with a first connecting hole, the flange is provided with a notch, the notch is bent to form a connecting part, the connecting part and the connecting plate are respectively provided with a second connecting hole and a third connecting hole corresponding to the first connecting hole, all for screws to pass through and lock.

[0020] Furthermore, the electric heating module has a first fixing hole at both ends, and the mounting bracket has a second fixing hole. The first fixing hole and the second fixing hole are connected to allow screws to pass through and be locked.

[0021] Furthermore, an upper water receiving tray and a lower water receiving tray are respectively provided above and below the direct-discharge evaporator, and both the upper water receiving tray and the lower water receiving tray are fixedly connected to the rear frame by a snap-fit ​​assembly.

[0022] Furthermore, the snap-fit ​​assembly includes several snap-fit ​​blocks and several snap-fit ​​slots, one of which is located on the upper water receiving tray / the lower water receiving tray, and the other is located on the rear frame, and the snap-fit ​​blocks engage with the snap-fit ​​slots.

[0023] Furthermore, both the upper water tray and the lower water tray are fixedly connected to the mounting bracket via a plug-in assembly. The plug assembly includes several pins and several slots. One of the pins and the slots is located on the upper water tray / lower water tray, and the other is located on the mounting bracket. The pins are plugged into the slots.

[0024] An air conditioning unit includes an installation structure for the aforementioned evaporator assembly, and also includes a cabinet connected to a rear frame. Attached Figure Description

[0025] Figure 1: Schematic diagram of the installation structure of the evaporator assembly in this embodiment;

[0026] Figure 2: Schematic diagram of the rear frame in the installation structure of the evaporator assembly in this embodiment;

[0027] Figure 3: Schematic diagram of the mounting bracket in the mounting structure of the evaporator assembly in this embodiment;

[0028] Figure 4: Schematic diagram of the electric heating module in the installation structure of the evaporator assembly in this embodiment;

[0029] Figure 5: Schematic diagram of the connecting plate in the installation structure of the evaporator assembly in this embodiment;

[0030] Figure 6: Schematic diagram of the upper water tray in the installation structure of the evaporator assembly in this embodiment;

[0031] Figure 7: Schematic diagram of the upper water tray in the installation structure of the evaporator assembly in this embodiment (II);

[0032] Figure 8: Schematic diagram of the lower water tray in the installation structure of the evaporator assembly in this embodiment;

[0033] Figure 9: Schematic diagram of the lower water tray in the installation structure of the evaporator assembly in this embodiment (II);

[0034] Figure 10: A schematic diagram of the installation structure of the evaporator assembly in this embodiment installed on the air conditioner cabinet unit;

[0035] Explanation of icon numbers:

[0036] 1. Rear frame; 101. Second mounting hole; 102. First connecting hole;

[0037] 2. Direct-vent evaporator;

[0038] 3. Mounting bracket; 301. Flanged edge; 302. Connecting part; 303. Supporting part; 31. First mounting hole; 32. Second connecting hole; 33. Second fixing hole;

[0039] 4. Electric heating module; 41. First fixing hole;

[0040] 5. Connecting plate; 51. Third connecting hole;

[0041] 6. Upper water tray; 61. Drain hole; 7. Lower water tray; 71. Drain nozzle;

[0042] 8. Snap-fit ​​assembly; 81. Snap-fit ​​block; 82. Snap-fit ​​slot;

[0043] 9. Connecting assembly; 91. Pin; 92. Slot;

[0044] 10. Cabinet; 11. Centrifugal fan; 12. Top air outlet; 13. Bottom air outlet.

[0045] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0046] To make the objectives, technical solutions, and beneficial effects of this invention clearer, the technical solutions of this invention are further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0047] In the description of this invention, it should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding and reading. They are not intended to limit the implementation conditions of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0048] As shown in Figures 1-10, this embodiment of the invention proposes an evaporator assembly installation structure, installed on the rear frame 1 of an air conditioner cabinet unit, including: a vertically arranged direct-vent evaporator 2; two detachable mounting brackets 3, which are disposed on the rear frame 1 and together form an installation cavity for installing the direct-vent evaporator 2; multiple electric heating modules 4, which are disposed between the two mounting brackets 3 and spaced apart along the length direction of the direct-vent evaporator 2; and a fixing assembly, including multiple first mounting holes 31 formed on the mounting brackets 3 and multiple second mounting holes 101 formed on the rear frame 1, wherein the multiple first mounting holes 31 and the multiple second mounting holes 101 correspond one-to-one and are all used for screws to pass through and lock.

[0049] Specifically, during use, the two mounting brackets 3 are first installed at the preset mounting positions on the rear frame 1, and screws are passed through the corresponding first mounting holes 31 and second mounting holes 101 in sequence and then locked to make the mounting brackets 3 firmly fixed and form a mounting cavity. Then, the direct-vent evaporator 2 is directly inserted into the mounting cavity formed by the two mounting brackets 3 from the front to complete the installation. Next, multiple electric heating modules 4 are installed at the preset positions between the two mounting brackets 3 to realize multi-segment heating along the height direction of the evaporator, so that the evaporator assembly can be quickly positioned and fixed. At the same time, the modular electric heating structure also makes it suitable for cabinet models of different capacities and heights, effectively improving assembly efficiency and production versatility.

[0050] Thus, through the above structure and usage, the present invention, by employing a direct-vent evaporator 2 in conjunction with a split mounting bracket 3, makes the overall structure thinner, effectively reducing the dimensions of the air conditioner in the depth direction; at the same time, the electric heating module 4 adopts a segmented, combinable arrangement, avoiding the problem of traditional long strip heaters needing to be redeveloped for different models, improving the degree of universality and reducing production costs; furthermore, the mounting bracket 3 can be quickly assembled on the rear frame 1 through the cooperation of multiple sets of holes in the fixing components, which not only simplifies the production process but also improves the reliability of assembly and the convenience of maintenance.

[0051] As shown in Figures 1-2 and 5, in this embodiment, each mounting bracket 3 is connected to the direct-vent evaporator 2 via a connecting plate 5, thereby fixing the direct-vent evaporator 2 within the mounting cavity. To enhance the support effect, multiple connecting plates 5 are provided, and the connecting plates 5 on both sides of the direct-vent evaporator 2 are preferably arranged in a staggered manner, meaning that the connecting plate 5 on one side is located at a offset position from the adjacent connecting plate 5 on the other side. This staggered arrangement not only enhances the lateral stability of the direct-vent evaporator 2 within the mounting cavity, preventing swaying or tilting, but also makes the overall stress on the evaporator more uniform, thereby improving the structural reliability during operation.

[0052] Furthermore, to prevent the connecting plate 5 from interfering with the refrigerant pipes, distribution pipes, and other pipelines on the side of the direct-vent evaporator 2 during installation, the connecting plate 5 preferably adopts an arc-shaped structure so that the connecting plate 5 avoids the side pipelines and avoids interference.

[0053] As shown in Figures 1-2, in this embodiment, the mounting bracket 3 has a flange 301 extending outward along its edge, and a plurality of first mounting holes 31 are formed in the flange 301. Specifically, the side of the mounting bracket 3 away from the flange 301 is also bent outward to form a support portion 303, which is used to abut against the rear frame 1, while the flange 301 overlaps the surface of the rear frame 1, so that the overall cross-section of the mounting bracket 3 has a Z-shaped structure. This structure not only allows the support portion 303 and the flange 301 to form stable multi-point contact with the rear frame 1, improving the fixing reliability of the mounting bracket 3, but also facilitates the setting of the first mounting holes 31 at the flange 301, making assembly more convenient.

[0054] As shown in Figures 2-3 and 5, in this embodiment, to achieve reliable multi-point fixing of the direct-vent evaporator 2, the rear frame 1 is provided with a first connecting hole 102, the flange 301 is provided with a notch, and the notch is bent to form a connecting part 302. The connecting part 302 and the connecting plate 5 are respectively provided with a second connecting hole 32 and a third connecting hole 51 corresponding to the first connecting hole 102, both for screws to pass through and lock. Specifically, during the installation process, the mounting bracket 3 is first placed against the rear frame 1, so that the connecting part 302 and the connecting plate 5 are aligned with the first connecting hole 102. Then, the screws are passed through the third connecting hole 51, the second connecting hole 32, and the first connecting hole 102 in sequence and locked, so that the mounting bracket 3 is fixedly connected to the rear frame 1 through the connecting part 302 and the connecting plate 5. Through the above structural design, not only can the fixing strength and stability between the mounting bracket 3 and the rear frame 1, as well as between the mounting bracket 3 and the connecting plate 5, be effectively improved, avoiding loosening or swaying caused by a single connection point, but the assembly of the connecting part 302 position is also made smoother, reducing spatial interference, thereby improving the overall assembly efficiency and reliability.

[0055] As shown in Figure 4, in this embodiment of the invention, the electric heating module 4 has first fixing holes 41 at both ends, and the mounting bracket 3 has second fixing holes 33. The first fixing holes 41 and the second fixing holes 33 communicate with each other for screws to pass through and lock. Specifically, in the actual installation process, the electric heating module 4 is placed between the two mounting brackets 3, aligning the first fixing holes 41 at both ends with the second fixing holes 33 on the mounting bracket 3; then, screws are passed through the first fixing holes 41 and locked into the second fixing holes 33 to complete the fixing of the electric heating module 4. Through the above structural design, the electric heating module 4 can be stably installed in segments at different heights of the direct-vent evaporator 2. This not only simplifies the assembly process and ensures accurate positioning, but also prevents the module from loosening or shifting during operation, which helps to ensure the uniformity of heating effect and long-term reliability.

[0056] Of course, in other embodiments, a third fixing hole can also be provided on the rear frame 1 for cooperating with the first fixing hole 41 and the second fixing hole 33. Specifically, the end of the electric heating module 4 can be simultaneously screwed through the first fixing hole 41, the second fixing hole 33, and locked into the third fixing hole. The three-point mounting structure can further improve the overall stability of the electric heating module 4, making the module less prone to swaying or loosening during long-term operation. At the same time, the setting of the third fixing hole can also indirectly limit and assist in fixing the mounting bracket 3, thereby improving the overall strength and reliability of the mounting structure.

[0057] As shown in Figures 1 and 6-9, in this embodiment, an upper water receiving tray 6 and a lower water receiving tray 7 are respectively provided above and below the direct-vent evaporator 2. Both the upper water receiving tray 6 and the lower water receiving tray 7 are fixedly connected to the rear frame 1 via a snap-fit ​​assembly 8. The upper water receiving tray 6 has a drain hole 61, which is positioned directly above the direct-vent evaporator 2. Since the upper region of the direct-vent evaporator 2 has an air outlet, condensate is easily generated on the outside of its air duct during operation. Therefore, this condensate needs to be guided to the surface of the direct-vent evaporator 2 and discharged downwards. By setting a drain hole 61 on the upper water tray 6, condensate water falls through the drain hole 61 onto the surface of the direct-discharge evaporator 2, and then flows naturally into the lower water tray 7 along the direct-discharge evaporator 2. At the same time, the condensate water also plays a certain role in rinsing the surface of the direct-discharge evaporator 2 during the flow process, reducing dust adhesion and improving the heat exchange effect. The lower water tray 7 is used to receive the water flow from the evaporator surface, and the collected condensate water is discharged from the unit through the drain pipe via the drain nozzle 71, thereby ensuring smooth drainage and dryness of the entire cabinet unit.

[0058] In addition, by using a snap-fit ​​fixing method, quick assembly can be achieved without additional screws, improving the installation efficiency of the upper water tray 6 and the lower water tray 7; on the other hand, the snap-fit ​​component 8 has a good positioning function, thereby ensuring that condensate can be effectively collected and diverted, further improving the reliability of operation.

[0059] Specifically, as shown in Figures 1-2 and 6-9, in this embodiment, the snap-fit ​​assembly 8 includes several snap-fit ​​blocks 81 and several snap-fit ​​slots 82. One of the snap-fit ​​blocks 81 and the snap-fit ​​slots 82 is located on the upper water receiving tray 6 / lower water receiving tray 7, and the other is located on the rear frame 1. The snap-fit ​​blocks 81 and the snap-fit ​​slots 82 engage. During installation, simply align the corresponding snap-fit ​​slots 82 of the upper water receiving tray 6 and the lower water receiving tray 7 with the snap-fit ​​blocks 81 on the rear frame 1, and press them in along the installation direction to achieve a secure snap-fit. Disassembly can also be achieved quickly by pulling the water receiving tray. By using the snap-fit ​​method of snap-fit ​​blocks 81 and snap-fit ​​slots 82, the installation of the upper water receiving tray 6 and the lower water receiving tray 7 can be completed without screws, which not only improves assembly efficiency and simplifies operation steps, but also ensures reliable positioning with the rear frame 1, thereby ensuring stable condensate collection and smooth drainage.

[0060] As shown in Figures 1-2 and 6-9, in this embodiment, both the upper water tray 6 and the lower water tray 7 are fixedly connected to the mounting bracket 3 via a plug-in assembly 9. The plug-in assembly 9 includes several pins 91 and several slots 92. One of the pins 91 and slots 92 is located on the upper water tray 6 / lower water tray 7, and the other is located on the mounting bracket 3. The pins 91 and slots 92 are plugged into each other. Through the plug-in assembly 9, the upper water tray 6 and lower water tray 7, after being fixed to the rear frame 1 by the snap-fit ​​assembly 8, further achieve stable positioning and support between themselves and the mounting bracket 3. This effectively improves the overall fixing strength of the upper water tray 6 and lower water tray 7, preventing them from shaking or falling off under operational vibration or water flow. Simultaneously, the connection with the mounting bracket 3 also indirectly stabilizes the mounting bracket 3.

[0061] Of course, in other embodiments, threaded holes for screw fastening can also be provided on the rear frame 1 and the mounting bracket 3 respectively. In this case, through holes can also be provided at corresponding positions of the upper water receiving tray 6 and the lower water receiving tray 7, so that the screws can pass through the through holes of the upper water receiving tray 6 or the lower water receiving tray 7 in sequence and be locked in the threaded holes on the rear frame 1 or the mounting bracket 3. Through the above-mentioned screw connection structure, the upper water receiving tray 6 and the lower water receiving tray 7 can obtain reliable mechanical locking on the basis of quick positioning and limiting provided by the snap-fit ​​component 8 and the plug-in component 9, which greatly improves the overall fixing strength and vibration resistance, and ensures that the water receiving trays are not prone to displacement or loosening during long-term operation.

[0062] As shown in Figure 10, this embodiment of the invention also provides a cabinet air conditioner, including the aforementioned evaporator assembly mounting structure and a cabinet 10 connected to the rear frame 1. The specific structure of the evaporator assembly mounting structure is as described in the above embodiment. Since this cabinet air conditioner adopts all the technical solutions of the aforementioned evaporator assembly mounting structure, it possesses at least all the beneficial effects brought about by the technical solution of Embodiment 1, which will not be elaborated upon here.

[0063] Specifically, in this embodiment, the cabinet 10 is equipped with two centrifugal fans 11, which form an upper air duct and a lower air duct respectively. The air conditioner cabinet also has an upper air outlet 12 and a lower air outlet 13, and the upper air duct and the lower air duct are connected to the upper air outlet 12 and the lower air outlet 13 respectively. The direct-vent evaporator 2 is located on the air inlet side of the two centrifugal fans 11. Thus, the air that has been heated by the direct-vent evaporator 2 is drawn in by the two centrifugal fans 11 and delivered to the corresponding upper air outlet and lower air outlet along the upper air duct and lower air duct respectively, thereby realizing the upper and lower air outlets of the whole unit.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An evaporator assembly mounting structure, installed on the rear frame (1) of an air conditioning unit, characterized in that, include: A vertically arranged direct-vent evaporator (2); two detachable mounting brackets (3) are provided on the rear frame (1) and together form a mounting cavity for mounting the direct-vent evaporator (2); multiple electric heating modules (4) are provided between the two mounting brackets (3) and are spaced apart along the length of the direct-vent evaporator (2); a fixing assembly includes multiple first mounting holes (31) formed on the mounting brackets (3) and multiple second mounting holes (101) formed on the rear frame (1), the multiple first mounting holes (31) and the multiple second mounting holes (101) correspond one-to-one and are all used for screws to pass through and lock.

2. The mounting structure of the evaporator assembly according to claim 1, characterized in that, Each of the mounting brackets (3) is connected to the direct-discharge evaporator (2) via a connecting plate (5).

3. The mounting structure of the evaporator assembly according to claim 2, characterized in that, The connecting plate (5) has an arc-shaped structure.

4. The mounting structure of the evaporator assembly according to claim 2 or 3, characterized in that, The mounting bracket (3) has a flange (301) extending outward along its edge, and a plurality of the first mounting holes (31) are formed in the flange (301).

5. The mounting structure of the evaporator assembly according to claim 4, characterized in that, The rear frame (1) is provided with a first connecting hole (102), the flange (301) is provided with a notch, and the notch is bent to form a connecting part (302). The connecting part (302) and the connecting plate (5) are respectively provided with a second connecting hole (32) and a third connecting hole (51) corresponding to the first connecting hole (102), which are used for screws to pass through and lock.

6. The mounting structure of the evaporator assembly according to claim 1, characterized in that, The electric heating module (4) has a first fixing hole (41) at both ends, and the mounting bracket (3) has a second fixing hole (33). The first fixing hole (41) and the second fixing hole (33) are connected to allow screws to pass through and be locked.

7. The mounting structure of the evaporator assembly according to claim 1, characterized in that, The direct-discharge evaporator (2) is provided with an upper water tray (6) and a lower water tray (7) above and below, respectively. The upper water tray (6) and the lower water tray (7) are both fixedly connected to the rear frame (1) by a snap-fit ​​assembly (8).

8. The mounting structure of the evaporator assembly according to claim 7, characterized in that, The snap-fit ​​assembly (8) includes several snap-fit ​​blocks (81) and several snap-fit ​​slots (82). One of the snap-fit ​​blocks (81) and the snap-fit ​​slots (82) is located on the upper water receiving tray (6) / the lower water receiving tray (7), and the other is located on the rear frame (1). The snap-fit ​​blocks (81) and the snap-fit ​​slots (82) engage with each other.

9. The mounting structure of the evaporator assembly according to claim 7, characterized in that, The upper water tray (6) and the lower water tray (7) are also fixedly connected to the mounting bracket (3) by a plug-in assembly (9). The plug-in assembly (9) includes several pins (91) and several slots (92). One of the pins (91) and the slots (92) is located on the upper water tray (6) / the lower water tray (7), and the other is located on the mounting bracket (3). The pins (91) are plugged into the slots (92).

10. A cabinet air conditioner, characterized in that, The mounting structure includes the evaporator assembly as described in any one of claims 4-9, and also includes a cabinet (10) connected to the rear frame (1).

Images