All fresh air direct expansion type air conditioning unit
By introducing a cleaning component into the fresh air direct expansion air conditioning unit, the filter plate can be cleaned without disassembling the structure, solving the problem that the filter structure needs to be disassembled periodically in the existing technology, and improving the convenience and practicality of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DEZHOU MEIDA AIR CONDITIONING EQUIP CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-19
AI Technical Summary
The filter structure of existing direct expansion air conditioning units requires regular disassembly and cleaning, which is complicated and reduces the convenience and practicality of use.
A cleaning assembly was designed, including a mounting cover, a protective shell, a cleaning component, and a collection component. A cylinder drives the mounting rod to move the brush and scraper, enabling the filter plate to be cleaned without disassembly, and dust and impurities are collected in the collection box.
The cleaning process of the filter structure has been simplified, improving the ease of use and practicality of the fresh air direct expansion air conditioning unit and extending the service life of the filter components.
Smart Images

Figure CN224261907U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of direct expansion air conditioning units, and in particular to a fresh air direct expansion air conditioning unit. Background Technology
[0002] Direct expansion air conditioning units include various types of air conditioning products, such as unitary air conditioners, ceiling air conditioners, ceiling-mounted ducted air conditioners, multi-split units (also known as "one-to-many" units, variable frequency multi-split units, etc.), rooftop air conditioners, as well as dehumidifiers, precision air conditioners, etc. In simple terms, an expansion air conditioning unit is a unit with its own compressor. Because the liquid refrigerant in its refrigeration system directly evaporates (expands) in its evaporator coil, it absorbs heat from the air outside the coil (that is, the air inside the air-conditioned room) to achieve cooling.
[0003] Chinese Patent No. CN215175647U discloses a novel direct-expansion air conditioning unit, including a cooling box. An insulated water tank is installed inside the cooling box and is fixedly connected to it. Insulation material is provided between the insulated water tank and the cooling box, and both are in contact with the insulation material. A water supply and drainage pipe is installed on the front surface of the cooling box and is fixedly connected to it, communicating with the insulated water tank. Cooling water is stored inside the insulated water tank. A working box is installed below the cooling box and is fixedly connected to it. An air handling chamber is located inside the cooling box and is an integral structure with it. An air filter is installed inside the air handling chamber and is fixedly connected to it.
[0004] The existing filter structure needs to be disassembled, cleaned, or replaced regularly. When cleaning the filter structure, the air conditioning unit structure needs to be disassembled in order to clean the internal filter structure. The operation is complicated, reduces the usability, and is not convenient to clean the filter structure without disassembling the structure. This reduces the usability of the fresh air direct expansion air conditioning unit and reduces its practicality. Utility Model Content
[0005] To address the problems existing in the background technology, a novel direct-expansion air conditioning unit is proposed.
[0006] This utility model proposes a novel direct-expansion air conditioning unit, comprising: a housing, a cleaning component, and a mounting housing;
[0007] The cleaning assembly is attached to the housing; the cleaning assembly includes a mounting cover, a protective shell, two sets of cleaning components, and a collection component.
[0008] The mounting cover is connected to the housing, the protective shell is connected to the mounting cover, the two sets of cleaning components are connected to the protective shell, and the collection component is connected to the bottom of the inner surface of the housing.
[0009] The two sets of cleaning components include a cylinder, a mounting rod, a mounting block, a support rod, a brush, and a scraper.
[0010] The cylinder is connected to the mounting cover, which has a through hole a. Through holes a and b are opposite each other, and through hole b is located on the housing. The cylinder drive end passes through through holes a and b and is connected to the mounting rod. Mounting blocks are connected to both sides of the outer wall of the mounting rod. The mounting blocks are connected to the support rod, and the support rod is connected to the brush and scraper.
[0011] And the mounting shell is connected to the housing.
[0012] Preferably, one end of the housing is connected to an air inlet and the other end is connected to an air outlet. Inside the housing, from the air inlet end to the air outlet end, there are a filter, an evaporation structure, a cooler, a baffle and an air supply component; the baffle is provided with a square opening.
[0013] Preferably, the filter element includes filter plate a and filter plate b;
[0014] Filter plate a and filter plate b are connected to the housing via a cleaning assembly.
[0015] Preferably, the air supply component includes a base and a fan;
[0016] The base is connected to the bottom of the inner surface of the housing, and the fan is connected to the base with the fan outlet and the air outlet facing each other.
[0017] Preferably, the two sets of cleaning components also include sliders and guide rails;
[0018] There are two sliders and guide rails. The sliders are connected to both ends of the support rod, and the sliders and guide rails correspond one-to-one. The guide rails are connected to the inner wall of the housing. The guide rails are connected to the support plate, and the support plate is connected to the filter element.
[0019] Preferably, the collection components include a collection box, a movable block, a movable rail, a movable cover, a connecting plate, and a handle;
[0020] The collection box is connected to the bottom of the inner surface of the housing. Movable blocks are connected to both sides of the bottom of the collection box. The movable blocks and the movable rails correspond one-to-one, and the movable rails are connected to the bottom of the inner surface of the housing. The movable cover is connected to the collection box. The movable cover is connected to a connecting plate. The connecting plate passes through the elongated opening and is connected to the outside and to the handle. The elongated opening is set on the housing.
[0021] Preferably, extension blocks are connected to both sides of the mounting shell. The extension blocks are connected to the outside of the shell and are detachably connected. The inside of the mounting shell is used to store the connecting plate and the handle.
[0022] Compared with the prior art, the present invention has the following beneficial technical effects:
[0023] This utility model connects a cleaning assembly to the housing. The cleaning assembly includes a mounting cover, a protective shell, two sets of cleaning components, and a collection component. The collection component is connected to the bottom of the inner surface of the housing, while the mounting cover and protective shell are connected to the top of the housing. The two sets of cleaning components are connected to the inside of the housing through through holes a and b, with through hole b located on the housing. The two sets of cleaning components correspond one-to-one with filter plates a and b, respectively, enabling the cleaning of filter plates a and b. This facilitates the use of the fresh air direct expansion air conditioning unit without disassembling the structure. The overall structure of the cleaning assembly works together, making operation simple and convenient. This achieves the purpose of cleaning the filter components, extending the service life of filter plates a and b, improving the practicality of the fresh air direct expansion air conditioning unit, and enhancing the structural performance of the fresh air direct expansion air conditioning unit. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0025] Figure 2 This is a schematic diagram of the interior of the shell in this utility model;
[0026] Figure 3 This is a schematic diagram of the cleaning component structure in this utility model;
[0027] Figure 4 This is a schematic diagram of the collecting component structure in this utility model.
[0028] Reference numerals: 1. Housing; 101. Air inlet; 102. Air outlet; 103. Filter plate a; 104. Filter plate b; 105. Evaporation structure; 106. Cooler; 107. Baffle; 108. Base; 109. Fan; 2. Cleaning assembly; 201. Mounting cover; 202. Protective shell; 203. Cylinder; 204. Mounting rod; 205. Mounting block; 206. Support rod; 207. Brush; 208. Scraper; 209. Slider; 210. Guide rail; 211. Collection box; 212. Moving block; 213. Moving rail; 214. Moving cover; 215. Connecting plate; 216. Handle; 3. Mounting shell; 301. Extension block. Detailed Implementation
[0029] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.
[0030] Example 1
[0031] like Figure 1 - Figure 4As shown, this utility model proposes a novel direct-expansion air conditioning unit, comprising: a housing 1, a cleaning assembly 2, and a mounting housing 3; the cleaning assembly 2 is connected to the housing 1; the cleaning assembly 2 includes a mounting cover 201, a protective housing 202, two sets of cleaning components, and a collection component; the mounting cover 201 is connected to the housing 1, the protective housing 202 is connected to the mounting cover 201, the two sets of cleaning components are connected to the protective housing 202, and the collection component is connected to the bottom of the inner surface of the housing 1; the two sets of cleaning components respectively include a cylinder 203 and a mounting rod 204. The system includes a mounting block 205, a support rod 206, a brush 207, and a scraper 208. A cylinder 203 is connected to a mounting cover 201, which has a through hole a. Through holes a and b are opposite each other, and through hole b is located on the housing 1. The driving end of the cylinder 203 passes through through holes a and b and connects to the mounting rod 204. Mounting blocks 205 are connected to both sides of the outer wall of the mounting rod 204. Mounting blocks 205 are connected to the support rod 206, and the support rod 206 is connected to the brush 207 and the scraper 208. The mounting shell 3 is connected to the housing 1. The cleaning component 2 facilitates the cleaning of dust and impurities from the filter structure of the fresh air direct expansion air conditioning unit. It also facilitates the cleaning of dust and impurities inside the housing 1. The cleaned dust and impurities are collected in a collection component, which reduces the need to disassemble the cover of the fresh air direct expansion air conditioning unit for cleaning the filter structure, thus improving the practicality and performance of the fresh air direct expansion air conditioning unit.
[0032] To further explain, the two sets of cleaning components also include sliders 209 and guide rails 210; there are two sliders 209 and guide rails 210, with sliders 209 connected to both ends of the support rod 206, and sliders 209 and guide rails 210 corresponding one-to-one. The guide rails 210 are connected to the inner wall of the housing 1; the guide rails 210 are connected to the support plate, and the support plate is connected to the filter element. During the movement of the support rod 206, the sliders 209 at both ends move synchronously. The sliders 209 are within the guide rails 210, which facilitates increased movement stability and improves the cleaning effect.
[0033] Further explanation: The collection components include a collection box 211, a moving block 212, a moving rail 213, a moving cover 214, a connecting plate 215, and a handle 216. The collection box 211 is connected to the bottom of the inner surface of the housing 1. The moving blocks 212 are connected to the two sides below the collection box 211, and the moving blocks 212 and the moving rail 213 correspond one-to-one. The moving rail 213 is connected to the bottom of the inner surface of the housing 1. The moving cover 214 is connected to the collection box 211. The moving cover 214 is connected to the connecting plate 215. The connecting plate 215 passes through an elongated opening and is connected to the outside and to the handle 216. The elongated opening is set on the housing 1. Extension blocks 301 are connected to both sides of the mounting shell 3. The extension blocks 301 are connected to the outside of the housing 1 and are detachably connected. The interior of the mounting shell 3 is used to store the connecting plate 215 and the handle 216. Mounting block 205 is detachably connected to housing 1 via extension block 301. By removing mounting housing 3, handle 216 and connecting plate 215 are exposed outside housing 1. The operator operates handle 216 to pull or push connecting plate 215 outward or inward. Connecting plate 215 drives moving cover 214, which opens or closes collection box 211. When collection box 211 is open, support rod 206 drives brush 207 and scraper 208 to move along the outside of filter plate into collection box 211, thus cleaning dust and impurities into collection box 211. According to the cleaning operation, the cleaning components 2 are used in conjunction to facilitate cleaning of the filter structure without disassembling housing 1 of the fresh air direct expansion air conditioning unit, thereby improving the practicality of fresh air direct expansion air conditioning unit.
[0034] Example 2
[0035] like Figure 1 and Figure 2 As shown, this utility model proposes a new type of direct-expansion air conditioning unit. Based on the above embodiments, this embodiment also details the specific components of the housing 1 and their assembly method.
[0036] Further explanation: One end of the housing 1 is connected to an air inlet 101, and the other end is connected to an air outlet 102. Inside the housing 1, from the air inlet end to the air outlet end, there are a filter, an evaporator 105, a cooler 106, a baffle 107, and an air supply component; the baffle 107 has a square opening. The air supply component facilitates the efficient discharge of fresh air from the housing 1 of the 100% fresh air direct expansion air conditioning unit. A reserved connection hole is provided on one side of the housing 1, and the reserved connection hole and the reserved mounting hole are opposite each other. The reserved mounting hole is located on the cover. By using screws to thread through the reserved connection hole and the reserved mounting hole, the cover and the housing 1 are connected. It is convenient to open one side of the housing 1 by disassembling the cover, which facilitates the regular maintenance and use of the 100% fresh air direct expansion air conditioning unit, thereby improving the convenience of using the 100% fresh air direct expansion air conditioning unit.
[0037] Further explanation: The filter components include filter plate a103 and filter plate b104; filter plate a103 and filter plate b104 are supported and connected inside the housing 1 by the cleaning assembly 2; the air supply components include a base 108 and a fan 109; the base 108 is connected to the bottom of the inner surface of the housing 1, and the fan 109 is connected to the base 108, with the air outlet end of the fan 109 facing the air outlet 102. The upper parts of filter plate a103 and filter plate b104 are connected to the inner wall of the housing 1, so that the bottom end does not affect the movement of the movable cover 214 to open or close the collection box 211, and is connected with the support plate to facilitate the connection of the filter components and the housing 1, improving the overall structural connection of the fresh air direct expansion air conditioning unit.
[0038] The working principle of this utility model is as follows: When the fresh air direct expansion air conditioning unit is in operation, fresh air enters the housing 1 through the air inlet 101, is filtered by the filter element, and is discharged from the air outlet 102 by the air supply element. The filter element filters dust and impurities from the fresh air, causing dust and impurities to accumulate on the surfaces of filter plates a103 and b104 after a period of use. This triggers the cylinder 203, which drives the mounting rod 204 downwards. The mounting rod 204 drives the mounting block 205, which in turn drives the support rod 206. The support rod 206 then drives the brush 207 and scraper 208. The scraper 208 moves downwards to remove the difficult-to-clean dust and impurities from the filter element, while the brush 207 moves downwards to remove dust and impurities from the surface of the filter element. When the brush 207 and scraper 208 move downwards during cleaning, the movable cover 214 is pulled outwards via the connecting plate 215 and handle 216, thereby collecting the cleaned dust and impurities in the collection box 211. The collection box 211 is opened according to the use of the cleaning component. When the cleaning component is not in use, the movable cover 214 is connected to the collection box 211, so that the collection box 211 is in a closed state. After the collection box 211 has collected a certain amount of dust and impurities, the cover of the housing 1 is opened to remove the collection box 211 from the housing 1, thereby cleaning the collected dust and impurities. Then, it is installed on the bottom of the inner surface of the housing 1 in conjunction with the cleaning component to clean the filter structure of the fresh air direct expansion air conditioning unit. This facilitates cleaning of the filter structure inside the housing 1 and improves the use of the fresh air direct expansion air conditioning unit.
[0039] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.
Claims
1. A novel direct-expansion air conditioning unit, characterized in that, include: Shell (1); A cleaning assembly (2) is attached to the housing (1); the cleaning assembly (2) includes a mounting cover (201), a protective shell (202), two sets of cleaning components and a collection component; The mounting cover (201) is connected to the housing (1), the protective shell (202) is connected to the mounting cover (201), the two sets of cleaning parts are connected to the protective shell (202), and the collecting parts are connected to the bottom of the inner surface of the housing (1); The two sets of cleaning components include a cylinder (203), a mounting rod (204), a mounting block (205), a support rod (206), a brush (207), and a scraper (208); The cylinder (203) is connected to the mounting cover (201). The mounting cover (201) is provided with a through hole a, and the through hole a and through hole b are opposite to each other. The through hole b is located on the housing (1). The driving end of the cylinder (203) passes through the through hole a and through hole b and is connected to the mounting rod (204). The mounting rod (204) is connected to the mounting blocks (205) on both sides of its outer wall. The mounting blocks (205) are connected to the support rod (206). The support rod (206) is connected to the brush (207) and the scraper (208). And mounting shell (3), which is connected to the shell (1).
2. A fresh air direct expansion air conditioning unit according to claim 1, characterized in that, One end of the housing (1) is connected to an air inlet (101), and the other end is connected to an air outlet (102). Inside the housing (1), from the air inlet end to the air outlet end, there are a filter, an evaporation structure (105), a cooler (106), a baffle (107) and an air supply component; the baffle (107) is provided with a square opening.
3. A fresh air direct expansion air conditioning unit according to claim 2, characterized in that, The filter element includes filter plate a (103) and filter plate b (104); Filter plate a (103) and filter plate b (104) are supported and connected to the housing (1) by cleaning assembly (2).
4. A fresh air direct expansion air conditioning unit according to claim 3, characterized in that, The air supply component includes a base (108) and a fan (109); The base (108) is connected to the bottom of the inner surface of the housing (1), and the fan (109) is connected to the base (108). The air outlet of the fan (109) is opposite to the air outlet (102).
5. A fresh air direct expansion air conditioning unit according to claim 4, characterized in that, The two sets of cleaning components also include a slider (209) and a guide rail (210); There are two sliders (209) and guide rails (210), and the sliders (209) are connected to both ends of the support rod (206). The sliders (209) and guide rails (210) correspond one to one. The guide rails (210) are connected to the inner wall of the housing (1). The guide rails (210) are connected to the support plate, and the support plate is connected to the filter element.
6. A fresh air direct expansion air conditioning unit according to claim 5, characterized in that, The collection components include a collection box (211), a moving block (212), a moving rail (213), a moving cover (214), a connecting plate (215), and a handle (216); The collection box (211) is connected to the bottom of the inner surface of the housing (1). The two sides below the collection box (211) are connected to the moving blocks (212). The moving blocks (212) and the moving rails (213) correspond one-to-one, and the moving rails (213) are connected to the bottom of the inner surface of the housing (1). The moving cover (214) is connected to the collection box (211). The moving cover (214) is connected to the connecting plate (215). The connecting plate (215) passes through the elongated opening and is connected to the outside and to the handle (216). The elongated opening is set on the housing (1).
7. A fresh air direct expansion air conditioning unit according to claim 6, characterized in that, The mounting shell (3) is connected to extension blocks (301) on both sides. The extension blocks (301) are connected to the outside of the shell (1) and can be detached. The mounting shell (3) is used to store the connecting plate (215) and the handle (216).