Air conditioning unit with snow melting function

Abstract

The utility model provides a kind of air conditioning unit with snow melting function, including air conditioner body, still including setting snow melting device, the snow melting device includes, shell, hollow structure, fixed in the fresh air inlet of air conditioner body, at least part is inserted into the inside of air conditioner body, the shell air inlet end that is exposed in the outside of air conditioner body is fixed with the air inlet grille of oblique arrangement;The hollow portion in the shell is sequentially provided with heating device and fresh air filter screen along air inlet direction, and the heating device and fresh air filter screen are integrally arranged in the shell and are arranged at the fresh air inlet.The utility model provides a kind of air conditioning unit with snow melting function, sets snow melting device at fresh air inlet, while ensuring fresh air volume, heating to fresh air and air inlet grille, to realize the snow melting function of fresh air, avoid in air inlet grille, i.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning unit technology, and in particular to an air conditioning unit with snow melting function. Background Technology

[0002] While providing efficient transportation, rail vehicles must also consider providing a comfortable riding environment for passengers inside the carriages. They should be able to adaptively adjust the temperature and humidity inside the carriages according to changes in the environment, as well as adjust the fresh air volume inside the carriages, to avoid problems such as air pollution and decreased oxygen content inside the carriages, which would affect passenger comfort.

[0003] To address the issues of temperature, humidity, and fresh air intake inside the train, existing rail vehicles are equipped with air conditioning units. These units have fresh air vents that introduce a fixed amount of fresh air into the train and adjust the temperature and humidity inside.

[0004] However, the operating environment of rail vehicles varies with the seasons and altitude, especially the ambient temperature. The air conditioning units on these vehicles cannot be reassembled to adapt to these environmental changes. In cold, snowy weather, when the rail air conditioning is heating, ice and snow accumulate and freeze at the fresh air inlets, blocking them and preventing the air conditioning from receiving fresh air and exchanging air with the outside. This results in foul air inside the carriages, affecting the comfort of the interior environment and, in severe cases, impacting passenger health. Utility Model Content

[0005] To address the technical problems in the existing technology, this utility model provides an air conditioning unit with snow melting function. A snow melting device is installed at the fresh air inlet. While ensuring the fresh air volume, the fresh air and the air intake grille are heated to achieve the snow melting function of the fresh air and avoid snow accumulation at the air intake grille, i.e., the fresh air inlet, blocking the fresh air inlet.

[0006] To solve the above-mentioned technical problems, this utility model provides an air conditioning unit with snow melting function, adopting the following technical solution:

[0007] An air conditioning unit with snow melting function includes an air conditioning body and a snow melting device, wherein the snow melting device includes...

[0008] The housing has a hollow structure and is fixed at the fresh air inlet of the air conditioner body. It is at least partially inserted into the air conditioner body, and the air inlet end of the housing exposed outside the air conditioner body is fixed with an inclined air inlet grille.

[0009] A heating device and a fresh air filter are sequentially arranged in the hollow part of the housing along the air inlet direction. The heating device and the fresh air filter are integrated into the housing and then placed at the fresh air inlet.

[0010] Furthermore, a rainwater separator is provided between the fresh air filter and the heating device. The rainwater separator includes an air inlet channel, in which multiple wind baffles are arranged in a staggered manner, with ventilation gaps left between adjacent wind baffles.

[0011] Furthermore, a drain hole is provided on the bottom wall of the air inlet channel, and a water collection trough is provided between the bottom wall of the air inlet channel and the housing, with the drain hole communicating with the water collection trough.

[0012] Furthermore, a heat insulation layer is provided between the heating device and the adjacent wind baffle.

[0013] Furthermore, the wind deflectors are arranged in multiple rows within the air intake channel.

[0014] Furthermore, adjacent rows are staggered.

[0015] Furthermore, a slot is provided on the inner wall of the housing, and the fresh air filter is installed in the slot.

[0016] Furthermore, the width of the slot is greater than the width of the fresh air filter.

[0017] Furthermore, the fresh air filter is provided with buckles on both sides for assembly and connection with the rainwater separator.

[0018] In summary, the air conditioning unit with snow melting function provided by this utility model has the following advantages compared with the prior art:

[0019] The inclined air intake grille allows snow to slide down the grille under the influence of gravity, preventing snow accumulation in the direction of the air intake.

[0020] The overlapping of the air intake grilles divides the air intake into multiple narrow spaces, further preventing snow from drifting in.

[0021] A heating device is installed at the air inlet to heat the air inlet grille and the air flow channel behind it, so as to melt the snow at the air inlet grille and the snow flying in from the air inlet grille, thus achieving the snow melting function.

[0022] The heating device may also preheat the incoming cold air, thereby increasing the temperature of the fresh air entering the fresh air duct, reducing the workload of the air conditioning unit, and preventing fluctuations in the temperature inside the vehicle.

[0023] A rainwater collector is installed to separate and collect rainwater and melted snow water that enters the snow melting device, and in conjunction with a heating device, to reduce the humidity of the fresh air.

[0024] The filter screen can further block the flying snow, and under the action of the heating device, the flying snow melts;

[0025] A limiting step is set at the slot to limit the position of the filter screen, prevent the filter screen from tilting, and create a larger gap between the filter screen and the housing, allowing snow to enter the fresh air duct; and when the filter screen is wet, the heating device can dry the filter screen and improve the air permeability of the filter screen.

[0026] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0027] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0028] In the attached diagram:

[0029] Figure 1 This is a schematic diagram of the structure of an air conditioning unit with snow melting function according to this utility model;

[0030] Figure 2 This is a schematic diagram of the snow melting device in an air conditioning unit with snow melting function according to this utility model;

[0031] In the picture:

[0032] 1. Snow melting device; 2. Ventilation fan; 3. Condenser; 4. Evaporator; 5. Return air inlet; 6. Fresh air inlet; 7. Outdoor fan; 8. Electric heating element; 9. Rainwater separator; 10. Fresh air filter; 11. Air inlet grille.

[0033] It should be noted that the accompanying drawings and text description are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0035] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] This utility model provides an air conditioning unit with snow melting function, including an air conditioning body and a snow melting device 1, wherein the snow melting device 1 includes...

[0038] The housing has a hollow structure and is fixed at the fresh air inlet 6 of the air conditioner body. It is at least partially inserted into the air conditioner body. The air inlet end of the housing exposed outside the air conditioner body is fixed with an inclined air inlet grille 11.

[0039] A heating device and a fresh air filter 10 are sequentially arranged in the hollow part of the housing along the air intake direction. The heating device and the fresh air filter 10 are integrated into the housing and then placed at the fresh air inlet 6.

[0040] This utility model provides an air conditioning unit with snow melting function. In this embodiment, such as... Figure 1 As shown, the air conditioning unit includes a main body, which is divided into an indoor cavity and an outdoor cavity by a partition. Inside the indoor cavity, there are two sets of evaporators 4, each equipped with a fan 2. The indoor cavity is connected to the heat exchange duct (not shown in the figure) of the interior (the vehicle compartment, hereinafter referred to as the indoor area), supplying heat-exchanged air to the interior to regulate indoor temperature and humidity. A return air vent 5 is located on the air conditioning unit between the two sets of evaporators 4. The return air vent 5 connects to the indoor return air duct (not shown in the figure), allowing indoor return air to enter the indoor cavity and exchange heat with the evaporators 4 again.

[0041] The outdoor cavity is equipped with a condenser 3, a compressor and an outdoor fan 7. Similarly, there are two sets of condensers 3, and the outdoor fan 7 is installed between the two sets of condensers 3.

[0042] A fresh air inlet 6 is also provided on one side wall of the indoor cavity, that is, a fresh air inlet 6 is provided on the side wall of the indoor cavity of the air conditioning unit, such as... Figure 1 As shown, on the two opposite side walls of the inner cavity, that is, on the two side walls parallel to the evaporator 4, there is a fresh air inlet 6. The fresh air inlet 6 is connected to the heat exchange duct through the fresh air duct (not shown in the figure).

[0043] The specific structures of the indoor and outdoor cavities can adopt existing conventional technologies or any structure and layout that may emerge in the future, without any requirements or restrictions.

[0044] In this embodiment, a snow melting device 1 is installed at the fresh air inlet 6.

[0045] The snow melting device 1 includes a housing, which is a hollow structure, such as a square tube structure, and is fixed at the fresh air inlet 6. It is at least partially inserted into the air conditioner body, that is, the air outlet end of the housing is inserted into the indoor cavity through the fresh air inlet 6 and connected to the fresh air duct, while the other end, the air inlet end, can extend out of the fresh air inlet 6 and be exposed outside the air conditioner body.

[0046] The hollow portion of the casing forms an air duct, through which fresh outdoor air enters. The casing has a certain length for fixing and installing the various snow-melting devices provided in this application.

[0047] An inclined air inlet grille 11 is fixed to the air inlet end of the housing exposed outside the air conditioner body; such as Figure 2 As shown, an air inlet grille 11 is provided at the air inlet of the housing, i.e., at the port of the housing. Each grille plate of the air inlet grille 11 is inclined. Specifically, the grille plates are inclined outwards from top to bottom. In two adjacent grille layers, the back of the upper grille plate is spaced apart on the top surface of the lower grille plate. The vertical distance between two adjacent grille layers is greater than or equal to 3mm, and the upper and lower grille plates have at least an overlapping portion. Preferably, the bottom edge of the upper grille plate is at least within a range of 1 / 5 to 1 / 3 of the grille plate width downwards from the top edge of the lower grille plate. This ensures that the fresh air must move upwards along the gap between the two grille plates along the bottom edge of the upper grille plate before entering the hollow part of the housing at the top edge of the lower grille plate, thus forming an approximately... path.

[0048] Preferably, the air inlet end of the casing is also inclined, and the bottom distance of the part extending out of the air conditioner body is greater than the top distance. More preferably, the top edge of the air inlet end of the casing is flush with the side wall of the air conditioner body at the fresh air inlet 6, the bottom extends out of the air conditioner body, and the bottom wall extending out of the air conditioner body is inclined downward, so that the water vapor entering the casing can flow out along the bottom wall.

[0049] By setting inclined gratings, the impact of fresh air on the air intake grille 11 is reduced, and the snow accumulated on it slides down the gratings under the action of gravity; the upper grating is located above the lower grating and there is an overlap, so that the snow or snow water and rainwater slide down the gratings layer by layer and will not enter the interior of the shell through the gaps between the gratings.

[0050] A heating device and a fresh air filter 10 are sequentially arranged inside the housing (referring to the hollow part) along the air intake direction.

[0051] The heating device can be a heating pipe, which can be arranged along the grid plate to heat the air inlet grille 11, thereby melting the snow accumulated at the ventilation grille and preventing the snow from blocking the air inlet channel. Furthermore, the heating pipe is a serpentine pipe with multiple bends, and each pipe is attached to the back of the grid plate without blocking the air inlet channel of the air inlet grille 11, thus avoiding affecting the air intake volume.

[0052] Furthermore, to avoid the heating element directly contacting the grille, which could cause the grille temperature to become too high or affect air intake, the heating element can be positioned at a certain distance from the air intake grille 11. This allows the grille temperature to be increased through thermal radiation, achieving the snow melting function. At the same time, the incoming air is heated, increasing the fresh air temperature so that the fresh air temperature entering the evaporator 4 is much higher than the ambient temperature, thereby improving the heat exchange efficiency of the air conditioning unit and reducing the energy consumption of the air conditioning unit.

[0053] A fresh air filter 10 is installed at the air outlet of the casing to filter impurities in the fresh air, and can also filter out moisture and snow contained in the fresh air.

[0054] A slot is provided near the air outlet of the housing. The slot can be arranged in a ring along the inner wall of the housing or only on the opposite side walls. The fresh air filter 10 is installed in the slot. The slot limits the position of the fresh air filter 10 within the housing, preventing it from shifting. The width of the slot is greater than the width of the fresh air filter 10, facilitating the installation and maintenance of the filter.

[0055] The snow melting device 1 also includes a rainwater separator 9, which is installed in the fresh air filter 10 and the heating device. The rainwater separator 9 includes an air inlet channel, in which multiple wind baffles are arranged in a staggered manner, with ventilation gaps left between adjacent wind baffles.

[0056] In this embodiment, the air inlet channel is the hollow part of the housing between the fresh air filter 10 and the heating device / fresh air grille. Alternatively, the air inlet channel can be another cylindrical structure embedded in the hollow part of the housing, or a plate-like structure arranged parallel to the top and bottom walls of the housing, which can be used to fix the wind baffle, without any requirements or limitations.

[0057] Taking the air inlet channel as the hollow part of the shell as an example, the baffle is set on the inner wall of the shell. The baffle is a sheet structure with multiple pieces, which are staggered in the air inlet channel. Preferably, the baffles are arranged in multiple rows in the air inlet channel, and each row is also equipped with multiple baffles. There is a ventilation gap between the baffles in the same row. Between the baffles in adjacent rows, the baffles are staggered, that is, the ventilation gap of the baffle in the front row is directly opposite the windward side of a baffle in the back row.

[0058] Furthermore, the fresh air passing through the ventilation gaps in the front row hits the center of the curved wind deflectors in the rear row, and then is split, creating a labyrinthine airflow path through the wind deflectors. The fresh air hitting the wind deflectors helps to cool and dehumidify the air.

[0059] The bottom wall of the air intake duct is equipped with a drain hole. The drain hole can be connected to the drain pipe in the indoor cavity, or the drain hole can be directly connected to the outside of the air conditioner body through a water collection tank, drain pipe and other structures. Water droplets that slide off the wind deflector are collected on the bottom wall of the air intake duct and discharged through the drain hole.

[0060] Preferably, a water collection trough is provided on the bottom wall of the air inlet channel, and the drain hole is connected to the water collection trough. When the air inlet channel is a plate-shaped structure or a cylindrical structure, a water collection trough is provided between the bottom wall of the ventilation duct and the shell, and the drain hole is connected to the water collection trough. Water droplets dripping from the water baffle are collected in the water collection trough and then discharged through the drain hole.

[0061] Preferably, a heat insulation layer is provided between the heating device and the adjacent baffle plate to prevent the heating tube from directly heating the baffle plate.

[0062] In summary, the air conditioning unit with snow melting function provided by this utility model has the following advantages compared with the prior art:

[0063] The inclined air intake grille allows snow to slide down the grille under the influence of gravity, preventing snow accumulation in the direction of the air intake.

[0064] The overlapping of the air intake grilles divides the air intake into multiple narrow spaces, further preventing snow from drifting in.

[0065] A heating device is installed at the air inlet to heat the air inlet grille and the air flow channel behind it, so as to melt the snow at the air inlet grille and the snow flying in from the air inlet grille, thus achieving the snow melting function.

[0066] The heating device may also preheat the incoming cold air, thereby increasing the temperature of the fresh air entering the fresh air duct, reducing the workload of the air conditioning unit, and preventing fluctuations in the temperature inside the vehicle.

[0067] A rainwater collector is installed to separate and collect rainwater and melted snow water that enters the snow melting device, and in conjunction with a heating device, to reduce the humidity of the fresh air.

[0068] The filter screen can further block the flying snow, and the heating device can melt the flying snow.

[0069] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. The implementation schemes in the above embodiments can be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An air conditioning unit with a snow melting function, comprising an air conditioning body, characterized in that: It also includes the installation of a snow melting device, which includes, The housing has a hollow structure and is fixed at the fresh air inlet of the air conditioner body. It is at least partially inserted into the air conditioner body, and the air inlet end of the housing exposed outside the air conditioner body is fixed with an inclined air inlet grille. A heating device and a fresh air filter are sequentially arranged in the hollow part of the housing along the air inlet direction. The heating device and the fresh air filter are integrated into the housing and then placed at the fresh air inlet.

2. The air conditioning unit with snow melting function according to claim 1, characterized in that: A rainwater separator is provided between the fresh air filter and the heating device. The rainwater separator includes an air inlet channel, in which multiple wind baffles are arranged in a staggered manner, with ventilation gaps left between adjacent wind baffles.

3. An air conditioning unit with snow melting function as described in claim 2, characterized in that: A drain hole is provided on the bottom wall of the air inlet channel, and a water collection tank is provided between the bottom wall of the air inlet channel and the housing, with the drain hole communicating with the water collection tank.

4. An air conditioning unit with snow melting function as described in claim 2, characterized in that: A heat insulation layer is provided between the heating device and the adjacent wind baffle.

5. An air conditioning unit with snow melting function as described in claim 2, characterized in that: The wind deflectors are arranged in multiple rows within the air intake channel.

6. An air conditioning unit with snow melting function as described in claim 5, characterized in that: The adjacent rows are staggered.

7. An air conditioning unit with snow melting function as described in any one of claims 1 to 6, characterized in that: The inner wall of the housing is provided with a slot, and the fresh air filter is installed in the slot.

8. An air conditioning unit with snow melting function as described in claim 7, characterized in that: The width of the slot is greater than the width of the fresh air filter.

9. An air conditioning unit with snow melting function as described in claim 8, characterized in that: The fresh air filter has clips on both sides for assembly and connection with the rainwater separator.

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