CN220205905U

CN220205905U - Buried indoor unit

Info

Publication number: CN220205905U
Application number: CN202321040724.XU
Authority: CN
Inventors: 周志军; 牛亮; 雷朋飞; 张利; 黄世哲; 刘远辉; 蔡远登; 李建铭
Original assignee: Guangdong PHNIX Eco Energy Solution Ltd
Current assignee: Guangdong PHNIX Eco Energy Solution Ltd
Priority date: 2023-05-04
Filing date: 2023-05-04
Publication date: 2023-12-19
Anticipated expiration: 2033-05-04

Abstract

The utility model relates to an underground indoor unit. The buried indoor unit comprises a floor layer, wherein the floor layer is provided with an air return opening and an air supply opening, the air return opening is internally embedded with an air return machine, the air supply opening is internally embedded with an air feeder, the air return machine is internally provided with a heat exchanger and a controller, the floor layer comprises a plurality of support columns distributed in a matrix, a plurality of air channels are formed between the support columns, the air outlet of the air return machine and the air inlet of the air feeder are oppositely arranged at two ends of the air channels, the controller is electrically connected with the air return machine and the air supply machine, negative pressure is formed in the air channels after the air feeder is started, so that indoor air is driven to enter the air return machine for heat exchange, and after sequentially passing through the air outlet, the air channels and the air inlet, the air feeder returns to the room to form convection circulation. The buried indoor unit has the advantage of low energy consumption.

Description

Buried indoor unit

Technical Field

The utility model relates to the technical field of indoor refrigeration and heating, in particular to a buried indoor unit.

Background

The traditional indoor units are mostly installed by hanging on the wall, and the pipelines and the brackets installed outside the traditional indoor units are exposed outside the wall and are distributed densely and densely, so that the indoor units occupy space and are not attractive. At the same time, customers also need to pay expensive installation costs due to the great difficulty in installing these pipes and brackets. The indoor unit mounted on the wall is easy to form upper reflux when blowing indoor, so that the refrigerating/heating effect of the lower part is greatly reduced. Indoor units in which pipes are buried under floors are also available, but these pipes have low space utilization and are difficult to repair and maintain. Meanwhile, more turning points and connecting points exist in the pipeline, water leakage or condensed water accumulation easily occurs in the positions, so that bacteria and viruses are bred in the space inside the pipeline or under the floor, the quality of air and indoor environment is reduced, and larger wind resistance can be formed in the positions, so that the indoor unit needs to maintain larger running power and resources are consumed.

Disclosure of Invention

Based on the above, the utility model aims to provide an underground indoor unit, which has the advantages of simple structure and low energy consumption.

The utility model provides an underground indoor unit, includes the floor layer, the floor layer is equipped with return air inlet and supply-air outlet, inlay in the return air inlet and be equipped with the return air inlet, inlay in the supply-air outlet and be equipped with the forced draught blower, be provided with heat exchanger and controller in the return air inlet, the floor layer includes a plurality of support columns that the matrix was laid, form a plurality of wind channels between the support column, the air outlet of return air inlet with the air inlet of forced draught blower is established relatively the both ends in wind channel, the controller with return air inlet and air supply machine are connected, the forced draught blower starts the back and is in form negative pressure in the wind channel, thereby drive indoor air gets into return air inlet exchanges heat, and loops through after air outlet, wind channel and the air inlet, through the forced draught blower returns indoor, forms the convection current circulation.

The buried indoor unit provided by the utility model has a simple and compact structure and is convenient to install and maintain. Through reasonable layout, the unit reduces flowing wind resistance of cold air and hot air in the floor layer, and reduces energy consumption required by the unit while guaranteeing surface radiation effect and indoor heat exchange efficiency. Meanwhile, the structure can avoid the generation and accumulation of a large amount of condensed water at the corner position of the air, and frequent cleaning of the floor layer is not needed.

Further, the support column is of a cylindrical structure. The cylinder can reduce wind resistance and increase the inner space of the floor layer.

Further, two ends of the supporting columns are connected with each other through the first upper connecting plate and the first lower connecting plate respectively to form an integrated structure. The integral structure can be limited by means of a wall body or a small number of limiting clamping pieces, and is convenient to install.

Further, the floor frame empty layer includes heating module and a plurality of parallel and interval setting's support bracket, the support bracket includes the support column with connect the second upper junction plate and the second lower junction plate of support column, interval formation between the support bracket the wind channel, the support bracket is made by metal material, heating module with the controller electricity is connected, is used for right the support bracket heats. The structure can adapt to the sizes and the positions of the air inlets of different air blowers and air return fans by adjusting the distance between the support brackets. The metal material can improve the emissivity of the earth surface, and the heating module can effectively prevent air from forming a large amount of condensed water on the surface of the metal material.

Further, return air machine and forced draught blower paste the wall setting, the return air machine is provided with the new trend blast gate, the orientation and the wall body parallel of new trend blast gate set up the return air machine is close to one side of door, with the pipeline of its intercommunication by the floor layer is worn out to communicate with outside air below the door. The structure can greatly reduce the trampling frequency of a user on the return air machine and the air blower in the moving process, and effectively reduce the falling of dust or other pollutants into the return air machine or the air blower.

Further, a water receiving tray and a bearing plate which is integrally formed with the water receiving tray or vertically inserted into the water receiving tray are arranged in the shell of the return air machine, the inner cavity of the shell is divided into a fresh air cavity and a return air cavity by the bearing plate, the fresh air cavity is communicated with the fresh air valve and the air outlet, a heat exchanger is arranged in the return air cavity, and the heat exchanger is vertically inserted into the bearing plate through an end plate to divide the return air cavity into a return air channel communicated with the return air inlet and an air outlet channel communicated with the air outlet; the air blower is internally provided with a wind wheel, an air deflector is arranged on the wind wheel along the vertical cover, and the air deflector is clamped with the shell of the air blower through an elastic buckle. The structure enables fresh air and return air to circulate independently in the air return machine, and the influence of the fresh air on the heat exchange efficiency of the heat exchanger is avoided. Simultaneously, the structure is convenient for maintenance personnel to disassemble and assemble the internal parts of the air returning machine and the air feeder through the air returning opening and the air supplying opening in the maintenance process, and damage to the floor layer is avoided.

Further, the controller is arranged in the fresh air cavity. Compared with the controller which is arranged independently, the structure integrates the controller in the air return machine, so that the structure is more compact. Meanwhile, the fresh air cavity and the return air cavity are mutually independent, so that condensate water or mist formed in the heat exchange process of the return air cannot influence electronic components in the controller.

Further, the bearing plate and the water receiving disc are made of EPP materials, gaps are filled through PU sponge, and sealing performance is improved. The EPP foam material can realize the heat insulation effect on the return air cavity, reduce heat loss and improve heat exchange efficiency.

Further, a partition plate is further arranged in the return air machine, the partition plate is erected above the fresh air cavity and connected with the end plate, the fresh air cavity is isolated from the return air inlet, and a sensor is arranged on the partition plate and used for monitoring PM2.5, oxygen concentration and temperature and humidity. The space above the fresh air cavity can be effectively utilized to carry out air return through the arrangement of the partition plate, and the partial air return is sampled and detected, so that parameters of indoor air quality are obtained, and the unit is conveniently controlled through the controller.

Further, the floor layer further comprises a calcium carbonate plate and a floor body, wherein stepped grooves are formed in the shell of the return air fan and the shell of the air blower, and the stepped grooves are used for supporting and limiting the calcium carbonate plate and the floor body. The structure realizes the matched installation among the return fan, the air feeder and the floor.

Further, the air return cover plate is arranged in the air return opening in a covering manner, the air supply cover plate is arranged in the air supply opening in a covering manner, and the two limit switches are electrically connected with the controller, wherein the limit switches are respectively arranged in the air return machine and the air supply machine and are close to the side face of the air return opening or the air supply opening, the air return cover plate and the air supply cover plate enable the limit switches to be pressed down, and when the air return cover plate or the air supply cover plate is detached, the pressed limit switches are sprung up, so that the power supply of the air return machine and the air supply machine is cut off. The mounting position of the limit switch is not easy to be pressed down due to treading, so that damage to maintenance personnel is avoided in the maintenance process through power failure, and the safety is improved.

For a better understanding and implementation, the present utility model is described in detail below with reference to the drawings.

Drawings

FIG. 1 is an exploded view of an underground indoor unit according to the present utility model;

FIG. 2 is a layout view of an indoor unit of the present utility model in a room;

FIG. 3 is a view showing another layout structure of the buried indoor unit in a room according to the present utility model;

FIG. 4 is a combination diagram of a floor layer and a return air blower and a blower according to a first embodiment;

FIG. 5 is a block diagram of the return air blower;

FIG. 6 is a cross-sectional view of the return air mover;

FIG. 7 is a cross-sectional view of the blower;

FIG. 8 is a diagram showing a floor layer in combination with a return air blower and a blower according to a second embodiment;

FIG. 9 is a schematic diagram of an air convection cycle;

reference numerals illustrate:

1. a floor layer; 11. a first upper connection plate; 12. a first lower connection plate; 13. a support column; 14. a calcium carbonate plate; 15. a floor; 16. a second upper connecting plate; 17. a second lower connection plate; 2. a return air machine; 21. a housing; 211. a first air outlet; 212. a second air outlet; 22. a water receiving tray; 221. a diversion trench; 222. a flow guiding surface; 23. a bearing plate; 24. a heat exchanger; 25. a controller; 26. a fresh air valve; 27. a partition plate; 28. a sensor; 29. a limit switch; 3. a blower; 31. a housing; 311. an air inlet; 32. a wind wheel; 33. an air deflector; 4. a return air cover plate; 5. and (5) an air supply cover plate.

Detailed Description

Example 1

Referring to fig. 1 to 7, fig. 1 is an exploded view of an underground indoor unit according to the present utility model; FIG. 2 is a layout view of an indoor unit of the present utility model in a room; FIG. 3 is a view showing another layout structure of the buried indoor unit in a room according to the present utility model; FIG. 4 is a combination diagram of a floor layer and a return air blower and a blower according to a first embodiment;

FIG. 5 is a block diagram of the return air blower; FIG. 6 is a cross-sectional view of the return air mover; FIG. 7 is a cross-sectional view of the blower; fig. 9 is a schematic diagram of an air convection cycle.

The utility model discloses an underground indoor unit which comprises a floor layer 1, an air return machine 2 and an air feeder 3. The air blower 3 is started to form negative pressure in the floor layer 1, so that indoor air is driven to enter the air return machine 2 for heat exchange, and the air after heat exchange is returned into the room by the air blower 3 after passing through the floor layer 1, so that convection circulation of the air is formed. The air after cooling or heating can be in dynamic contact when flowing in the floor layer 1, so that the air can be cooled or heated to the indoor space in a radiation mode through the floor layer 1, the temperature difference between the floor and the indoor air is reduced, and the comfort of a user is improved.

The floor layer 1 is arranged on the indoor ground, the top surface of the floor layer is provided with an air return opening and an air supply opening, the air return opening is embedded with an air return fan 2, the air supply opening is embedded with an air feeder 3, and the air return fan 2 and the air feeder 3 are oppositely arranged. The lengths of the air return machine 2 and the air feeder 3 determine the size of a convection circulation space, in the actual installation process, the convection circulation can be carried out only on the indoor part space according to the size of the movable space, and the positions of the air return opening and the air supply opening are required to be close to a wall body as much as possible, so that the treading frequency of the air return machine 2 and the air feeder 3 in the user activity process is reduced, and the service life is prolonged. The air outlet effect and efficiency of the oppositely arranged wall bodies are the best, so that the effective refrigerating/heating area of the room can be concentrated in the center of the room, and the comfort level of the room is improved.

The floor layer 1 may have various structural forms, in this embodiment, the floor layer 1 includes a first upper connection board 11, a first lower connection board 12, and a plurality of support columns 13 arranged between the first upper connection board 11 and the first lower connection board 12 in a matrix, and a plurality of air channels connected with the air return machine 2 and the air blower 3 are formed between the support columns 13, and the air channels transversely extend, so that air flows along a straight line direction, and the obstruction of the floor layer structure is avoided. The first upper connecting plate 11 is paved with a calcium carbonate plate 14, the calcium carbonate plate 14 is spliced and paved with a floor 15, and the number and the spacing of the support columns 13 can be arranged according to the size of the calcium carbonate plate 14 or the floor 15.

Preferably, the first upper connecting plate 11, the first lower connecting plate 12 and the supporting columns 13 are integrally formed and made of waterproof plastic, so that a large amount of condensed water can be prevented from being generated in the heat exchange process, and pollution of the air duct caused by bacterial growth is avoided.

The support column 13 may have various structural forms, such as a truncated cone shape, and in this embodiment, the support column 13 has a cylindrical structure, so as to reduce the space occupied by the support column and reduce wind resistance.

The return air machine 2 comprises a shell 21, and a water receiving tray 22, a bearing plate 23, a heat exchanger 24 and a controller 25 which are arranged in the shell 21. The top of the shell 21 is communicated with the air return opening, a plurality of air outlets are formed in the side face, facing the air blower 3, of the shell, the air outlets are in one-to-one correspondence and are communicated with the air channels, and the air outlets are in one-to-one correspondence with the air inlets. The air outlets include a first air outlet 211 and a second air outlet 212.

The water pan 22 is provided with a diversion trench 221, and two sides of the diversion trench 221 are provided with diversion surfaces 222 which incline downwards. The support plate 23 and the water receiving tray 22 are integrally formed or vertically inserted into the water receiving tray 22, so that the inner cavity of the shell 21 is divided into a fresh air cavity and a return air cavity. The shell 21 is further provided with a fresh air valve 26 electrically connected with the controller 25, and the fresh air cavity is communicated with the first air outlet 211. A heat exchanger 24 is arranged in the return air cavity, and the heat exchanger 24 can be a surface cooler and the like. The heat exchanger 24 is vertically inserted on the supporting plate 23 through an end plate, and separates the return air cavity into a return air channel communicated with the return air inlet and an air outlet channel communicated with the second air outlet 212. The controller 25 is arranged in the fresh air cavity, so that the compactness of the structure of the return air fan 2 is improved. The condensed water produced by the surface cooler drops into the water pan 22, is guided into the guide groove 221 by the guide surface 222, flows into the fresh air cavity along the guide groove 221, and is accumulated in the water collecting cavity. When the water level is exceeded, the water level switch sends out a signal to enable the water suction pump to be started, so that the wastewater is pumped away from the air return machine.

Preferably, a partition plate 27 is further disposed in the air return machine 2, and the partition plate 27 is erected above the fresh air cavity and connected with the end plate, so that the fresh air cavity is isolated from the air return port, and the indoor air entering from the air return port is cooled or heated directly through the heat exchanger 24, and flows along the partition plate 27 until contacting with the heat exchanger 24 after being blocked by the partition plate 27. Be provided with multiple sensor 28 on the baffle 27, sensor 28 includes PM2.5 detector, oxygen concentration detector and temperature and humidity detector etc. to carry out real-time supervision to multiple parameter, improve user's experience and feel.

Preferably, the partition plate 27 is further provided with a limit switch 29 electrically connected to the controller 25, and the limit switch 29 is disposed on the partition plate 27 and near a side surface of the return air inlet. The return air machine 2 is also provided with a return air cover plate 4 in the return air inlet. The return air cover plate 4 enables the limit switch 29 to be pressed down, and the limit switch 29 is sprung up when the return air cover plate 4 is disassembled, so that the power supply of the return air machine 2 and the blower 3 is cut off.

Preferably, the supporting plate 23 and the water receiving tray 22 are made of EPP material, and the gap is filled by PU sponge, so that the sealing performance is improved.

The blower 3 includes a housing 31, a wind wheel 32 rotatably provided in the housing 31, and a wind deflector 33 provided over the wind wheel 32. A plurality of air inlets 311 are formed in one side of the casing 31 facing the air return machine 2, and the air inlets 311 are in one-to-one correspondence with the air channels, so that air flowing out of the air outlets passes through the air channels along a straight line and then enters the air inlets 311. The air deflector 33 is vertically covered in the housing 31 and is clamped with the housing 31 by an elastic buckle. The upper cover of the air supply opening is provided with an air supply cover plate 5. The air supply device is characterized in that the limit switch is also arranged in the air supply device, the limit switch is close to the side face of the air supply port, the air supply cover plate enables the limit switch to be pressed down, and when the air supply cover plate is detached, the pressed limit switch is sprung up, so that the power supply of the air return device and the air supply device is cut off.

Referring to fig. 2 and 3, in order to enable the blower 3 and the air return machine 2 to be arranged close to a wall, the fresh air valve 26 is parallel to the wall and arranged on one side of the air return machine 2 close to a door, and a fresh air pipeline communicated with the fresh air valve passes through the floor layer 1 from below the door so as to be communicated with external air, so that the convection circulation space is maximized. The blower 3 and the air return machine 2 may be disposed in the house transversely or longitudinally, and preferably, the fresh air valve 26 faces the door, so that the outdoor fresh air may flow into the fresh air cavity along a straight line, bending of the pipeline is avoided, the length of the fresh air duct is reduced, and the fresh air efficiency may be increased.

Preferably, the casing 21 of the return air machine 2 and the casing 31 of the blower 3 are respectively provided with a stepped groove, and the stepped grooves are used for supporting and limiting the calcium carbonate plate 14 and the floor 15.

When the air conditioner is used, the controller controls the return air blower and the air feeder to be started, so that indoor air flows along the convection circulation direction. When the indoor temperature is required to be reduced or heated, the heat exchanger refrigerates or heats the return air, and the indoor temperature is reduced or raised rapidly through circulation. When the indoor air quality is reduced, the fresh air valve is opened, so that fresh air does not need to exchange heat through the heat exchanger after entering the fresh air cavity, directly enters the air duct from the second air outlet, and is mixed with return air after heat exchange in the air duct.

When maintaining, only need take out air supply apron and return air apron, can overhaul or dismantle the inner structure of return air machine and forced draught blower. In the process, the limit switch is sprung to cut off the power supply of the return fan and the blower, so that the safety of the operation process of maintenance personnel is improved.

Example 2

Referring to fig. 8, fig. 8 is a combination diagram of a floor layer, a return air blower and a blower according to a second embodiment.

This embodiment is substantially the same as embodiment 1, except that: the blank floor frame comprises a plurality of parallel support brackets which are arranged at intervals, wherein each support bracket comprises a plurality of support columns 13 which are arranged along a straight line, and a second upper connecting plate 16 and a second lower connecting plate 17 which are connected with the support columns 13. The air duct is formed by the interval between the support brackets. The split structure can be convenient for field installation and has strong universality.

Preferably, the support bracket is made of a metal material such as stainless steel, aluminum, etc., so as to enhance the radiation effect.

Preferably, the floor frame blank further comprises a heating module (not shown) electrically connected to the controller 25 for heating the support frame. When there is great difference in temperature between support bracket and the air (especially when the support bracket temperature is less than the temperature of air), start heating module and carry out the heating of short time to support bracket to make its temperature rise fast, reduce the difference in temperature with the air, prevent because of producing ponding problem that a large amount of comdenstions water leads to. Besides the heating module, the flocked fabric can be coated on the outer side of the support bracket, so that condensed water is prevented from being formed after air contact.

After the machine is started, if heating operation is performed, the heating module is started, the support bracket is heated up rapidly, the temperature difference between the support bracket and indoor air is reduced, and then the blower and the air return machine are started for operation.

It should be understood that in the description of the present application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application. The terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, i.e., features defining "first," "second," may explicitly or implicitly include one or more such features. Furthermore, unless otherwise indicated, the meaning of "a plurality" is two or more.

It should be noted that, in the description of the present application, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "hollow" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the spirit of the utility model, and the utility model is intended to encompass such modifications and improvements.

Claims

1. The utility model provides an indoor unit of buried, includes the floor layer, the floor layer is equipped with return air inlet and supply-air outlet, inlay in the return air inlet and be equipped with the return air fan, inlay in the supply-air outlet and be equipped with forced draught blower, its characterized in that: the air return machine is characterized in that a heat exchanger and a controller are arranged in the air return machine, the floor layer comprises a plurality of supporting columns distributed in a matrix, a plurality of air channels are formed between the supporting columns, an air outlet of the air return machine and an air inlet of the air blower are oppositely arranged at two ends of the air channels, the controller is electrically connected with the air return machine and the air blower, negative pressure is formed in the air channels after the air blower is started, so that indoor air is driven to enter the air return machine to exchange heat, and the indoor air returns to the indoor through the air blower after sequentially passing through the air outlet, the air channels and the air inlet, so that convection circulation is formed.

2. The underground indoor unit of claim 1, wherein: the support column is of a cylindrical structure.

3. The underground indoor unit of claim 2, wherein: the two ends of the supporting columns are respectively connected with each other through the first upper connecting plate and the first lower connecting plate to form an integrated structure.

4. The underground indoor unit of claim 2, wherein: the floor layer includes heating module and a plurality of parallel and interval setting's support bracket, the support bracket includes the support column with connect the second upper junction plate and the second lower junction plate of support column, interval formation between the support bracket the wind channel, the support bracket is made by metal material, heating module with the controller electricity is connected, is used for right the support bracket heats.

5. A buried indoor unit according to claim 3 or 4, wherein: the wall setting is pasted to return air machine and forced draught blower, the return air machine is provided with the new trend blast gate, the orientation and the wall body parallel of new trend blast gate set up return air machine is close to one side of door, with the pipeline of its intercommunication by the floor layer is worn out to communicate with outside air below the door.

6. The underground cabinet assembly of claim 5, wherein:

the air return device comprises a shell, a water receiving disc and a bearing plate, wherein the water receiving disc is arranged in the shell of the air return device, the bearing plate is integrally formed with the water receiving disc or vertically inserted into the water receiving disc, the inner cavity of the shell is divided into a fresh air cavity and an air return cavity by the bearing plate, the fresh air cavity is communicated with a fresh air valve and an air outlet, a heat exchanger is arranged in the air return cavity, the heat exchanger is vertically inserted into the bearing plate through an end plate, and the air return cavity is divided into an air return channel communicated with an air return opening and an air outlet channel communicated with the air outlet;

the air blower is internally provided with a wind wheel, an air deflector is arranged on the wind wheel along the vertical cover, and the air deflector is clamped with the shell of the air blower through an elastic buckle.

7. The underground cabinet assembly of claim 6, wherein: the controller is arranged in the fresh air cavity.

8. The underground cabinet assembly of claim 7, wherein: the bearing plate and the water pan are made of EPP materials, gaps are filled through PU sponge, and sealing performance is improved.

9. The underground cabinet assembly of claim 8, wherein: still be provided with the baffle in the return air machine, the baffle erects fresh air chamber top and with the end plate is connected, makes the fresh air chamber with the return air inlet is isolated, be provided with the sensor on the baffle, the sensor is used for monitoring PM2.5, oxygen concentration and humiture.

10. The underground cabinet assembly of claim 9, wherein: the floor layer further comprises a calcium carbonate plate and a floor body, wherein stepped grooves are formed in the shell of the return air machine and the shell of the air feeder, and the stepped grooves are used for supporting and limiting the calcium carbonate plate and the floor body.

11. The underground cabinet assembly of claim 10, wherein: the air return cover plate and the air supply cover plate are arranged in the air return opening in a covering manner, the air supply cover plate and the two limit switches are electrically connected with the controller, the limit switches are respectively arranged in the air return machine and the air supply machine and are close to the side face of the air return opening or the air supply opening, the air return cover plate and the air supply cover plate enable the limit switches to be pressed down, and when the air return cover plate or the air supply cover plate is detached, the pressed limit switches are sprung up, so that the power supply of the air return machine and the air supply machine is cut off.