Air conditioning apparatus and elevator

Abstract

This utility model discloses an air conditioning device and an elevator. The air conditioning device is applied to an elevator, which includes a protective outer shell and an inner wall, with a hollow space between the outer shell and the inner wall. The inner wall includes a top surface, a bottom surface, and side walls. The air conditioning device includes: a heat exchange coil disposed between the protective outer shell and the side walls; a first air vent disposed at the top of the protective outer shell; a second air vent disposed at the bottom of the protective outer shell; a third air vent disposed on the inner wall of the elevator, located in the upper part of the elevator's interior space; a fourth air vent disposed on the inner wall of the elevator, located in the lower part of the elevator's interior space; and a controller for controlling the opening and closing of the first, second, third, and fourth air vents according to the elevator's load status and direction of travel. This utility model avoids the use of a fan, reducing energy consumption and noise.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and more specifically, to an air conditioning device and an elevator. Background Technology

[0002] Elevators are crucial transportation equipment in high-rise buildings. To meet users' comfort needs, some elevators are equipped with air conditioning. Currently, the air conditioning units are located at the top of the elevator, with air outlets and return vents. Cooling air is forced into the elevator by fans. However, this fan-based air supply method leads to increased energy consumption and noise levels.

[0003] There is currently no effective solution to the problem that the air conditioning in elevators uses fans to deliver air, which leads to increased energy consumption and noise. Utility Model Content

[0004] This utility model provides an air conditioning device and an elevator to solve the problems of increased energy consumption and noise caused by the use of fans in the air conditioning devices in elevators in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model provides an air conditioning device applied to an elevator. The elevator includes a protective outer shell and an inner wall, with a hollow space between the protective outer shell and the inner wall. The inner wall includes a top surface, a bottom surface, and side walls. The air conditioning device comprises:

[0006] A heat exchange coil is disposed between the protective outer shell and the side wall;

[0007] The first air vent is located at the top of the protective casing;

[0008] The second air vent is located at the bottom of the protective casing;

[0009] The third air vent is located on the inner wall of the elevator, in the upper part of the elevator's interior space.

[0010] The fourth air vent is located on the inner wall of the elevator, in the lower part of the elevator's interior space.

[0011] Furthermore, the third air vent is located on the top surface of the inner wall or on the upper part of the side wall;

[0012] The fourth air vent is located on the bottom surface of the inner wall or the lower part of the side wall.

[0013] Furthermore, the air conditioning equipment also includes:

[0014] Water inlet pipe, connected to the water inlet of the heat exchange coil;

[0015] The water outlet pipe is connected to the water outlet of the heat exchange coil.

[0016] Furthermore, the air conditioning equipment also includes:

[0017] The first air valve is located at the first air outlet, and the opening angle of the first air valve is adjustable.

[0018] The second air valve is located at the second air outlet, and the opening angle of the second air valve is adjustable.

[0019] A third air valve is installed at the third air outlet, and the opening angle of the third air valve is adjustable.

[0020] A fourth air valve is installed at the fourth air outlet, and the opening angle of the fourth air valve is adjustable;

[0021] The controller is also used to control the opening angles of the first air valve, the second air valve, the third air valve, and the fourth air valve according to the elevator's load parameters; wherein, the load parameters include the elevator's internal temperature, the number of passengers, and the elevator door opening and closing frequency.

[0022] This utility model also provides an elevator, including the aforementioned air conditioning equipment.

[0023] By applying the technical solution of this utility model, air vents are respectively set at the top and bottom of the elevator's protective shell, connecting to the space inside the elevator shaft. Air vents are also respectively set at the upper and lower positions of the inner wall of the elevator, connecting to the internal space of the elevator. A heat exchanger is set between the protective shell and the inner wall. By controlling the opening and closing of the above-mentioned air vents according to the elevator's load status and running direction, it is possible to achieve strong convection and thus achieve rapid heat exchange when the elevator load is high, based on the elevator's running direction. When the elevator load is low, by controlling the opening and closing of the air vents at the upper and lower parts of the elevator's internal space, natural convection is achieved based on the characteristics of hot air rising and cold air sinking, thus achieving heat exchange. Although the heat exchange effect is lower than that of strong convection, it can still meet the lower cooling needs due to the low elevator load and low usage frequency. This embodiment reduces the elevator's internal temperature by combining strong convection or natural convection with heat exchange coils, based on the elevator's load status. This eliminates the need for fans, reducing energy consumption and noise. Furthermore, since the heat exchange coils are located between the elevator's side wall and the protective outer shell, they can also cool the elevator's interior through radiant cooling. Attached Figure Description

[0024] Figure 1 This is a structural diagram of the air conditioning equipment in an existing elevator.

[0025] Figure 2 This is a structural diagram of an air conditioning device according to an embodiment of the present utility model.

[0026] Figure label:

[0027] 1-Protective outer shell, 2-Inner wall, 21-Top surface, 22-Bottom surface, 23-Side wall, 3-Heat exchange coil, 4-First air outlet, 5-Second air outlet, 6-Third air outlet, 7-Fourth air outlet, 8-Frame, 9-Water inlet pipe, 10-Water outlet pipe. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] The terminology used in the embodiments of this utility model is for the purpose of describing particular embodiments only and is not intended to limit the utility model. The singular forms “a,” “the,” and “the” used in the embodiments of this utility model and the appended claims are also intended to include the plural forms, and “multiple” generally includes at least two unless the context clearly indicates otherwise.

[0030] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0031] It should be understood that although the terms first, second, third, etc., may be used to describe air vents in the embodiments of this utility model, these air vents should not be limited to these terms. These terms are only used to distinguish different air vents. For example, without departing from the scope of the embodiments of this utility model, a first air vent may also be referred to as a second air vent, and similarly, a second air vent may also be referred to as a first air vent.

[0032] Depending on the context, the words “if” or “suppose” as used here can be interpreted as “when” or “in response to determination” or “in response to detection.” Similarly, depending on the context, the phrases “if determination” or “if detection (of the stated condition or event)” can be interpreted as “when determination” or “in response to determination” or “when detection (of the stated condition or event)” or “in response to detection (of the stated condition or event).”

[0033] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or device that includes said element.

[0034] The optional embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0035] Example 1

[0036] Figure 1 Provide a structural diagram of the air conditioning equipment in an existing elevator, such as... Figure 1 As shown, the air conditioning unit is installed at the top of the elevator, with air outlets and return air inlets. Cooling is delivered into the elevator via forced airflow from a fan. However, using a fan results in increased energy consumption and noise levels.

[0037] To address the problems of increased energy consumption and noise caused by the use of fans in existing elevator air conditioning systems, this embodiment provides an air conditioning device for use in elevators. Figure 2 Here is a structural diagram of an air conditioning device according to an embodiment of the present utility model, as shown below. Figure 2 As shown, the elevator includes a protective outer shell 1 and an inner wall 2, with a hollow space between the protective outer shell 1 and the inner wall 2, supported by a frame 8. The inner wall 2 includes a top surface 21, a bottom surface 22, and a side wall 23. The aforementioned air conditioning equipment includes: a heat exchange coil 3, disposed between the protective outer shell 1 and the side wall 23; a first air vent 4, disposed at the top of the protective outer shell 1, connecting to the space inside the elevator shaft; a second air vent 5, disposed at the bottom of the protective outer shell 1, also connecting to the space inside the elevator shaft; a third air vent 6, disposed on the inner wall of the elevator, located in the upper part of the elevator's internal space; and a fourth air vent 7, disposed on the inner wall of the elevator, located in the lower part of the elevator's internal space. A controller (not shown in the figure) controls the opening and closing of the first air vent 4, the second air vent 5, the third air vent 6, and the fourth air vent 7 according to the elevator's load status and direction of travel.

[0038] In this embodiment, the air conditioning equipment has air vents at the top and bottom of the elevator's protective shell 1, connecting to the space inside the elevator shaft. Air vents are also installed at the upper and lower positions of the elevator's inner wall 2, connecting to the elevator's internal space. A heat exchanger 3 is installed between the protective shell 1 and the inner wall 2. The opening and closing of these air vents are controlled according to the elevator's load and direction of travel. When the elevator load is high, the corresponding air vents on the protective shell 1 are opened according to the elevator's direction of travel to achieve strong convection and thus faster heat exchange. When the elevator load is low, by controlling the opening and closing of the air vents at the upper and lower parts of the elevator's internal space, natural convection is achieved based on the characteristics of hot air rising and cold air sinking, thus achieving heat exchange. Although the heat exchange effect is lower than strong convection, it can still meet lower cooling requirements due to the low elevator load and low usage frequency. According to the load status of the elevator, this embodiment reduces the temperature inside the elevator by combining strong convection or natural convection with heat exchange coil 3. No fan is needed, which can reduce energy consumption and noise. In addition, since the heat exchange coil is located between the side wall of the elevator and the protective shell, it can also cool the inside of the elevator through radiative cooling.

[0039] Since hot air rises and gathers at the top or upper part of the elevator interior space, in order to ensure that more air enters the third air vent, the third air vent is set on the top surface of the inner wall or the upper part of the side wall.

[0040] Since cold air accumulates at the bottom or lower part of the elevator interior after descending, the fourth air vent is located on the bottom surface of the inner wall or the lower part of the side wall to maximize the airflow.

[0041] Specifically, the controller is used to: determine the elevator's load status; if the elevator's load status is high, it further determines whether the elevator's running direction is upward or downward; if upward, it controls the first and fourth air vents to open, and the second and third air vents to close, allowing air to enter through the first air vent, exchange heat through the heat exchange coil, and form cold air, which is then blown out through the fourth air vent; if downward, it controls the second and third air vents to open, and the first and fourth air vents to close, allowing air to enter through the second air vent, exchange heat through the heat exchange coil, and form cold air, which is then blown out through the third air vent; if the elevator's load status is low, it controls the first and second air vents to open, and the third and fourth air vents to close.

[0042] Furthermore, in existing technologies, a separate cold source is typically designed for heat exchange, such as a semiconductor heat exchanger, which is costly. To address the cold source issue at a lower cost, the air conditioning equipment also includes: an inlet pipe 9, connected to the inlet of the heat exchange coil; and an outlet pipe 10, connected to the outlet of the heat exchange coil. Cold water enters the inlet of the heat exchange coil from the inlet pipe, and after heat exchange and temperature increase, flows out from the outlet of the heat exchange coil. The inlet and outlet pipes can be covered with heat-insulating material and bundled with the elevator cables to reduce space occupation.

[0043] When the elevator is under high load, more cooling air is needed, thus requiring a larger intake and exhaust air volume. Conversely, when the elevator is under low load, less cooling air is needed, allowing for a reduction in the intake and exhaust air volume. To achieve precise control of the intake and exhaust air volume under different loads and improve user comfort, the aforementioned air conditioning equipment further includes: a first air valve located at a first air outlet, with an adjustable opening angle; a second air valve located at a second air outlet, with an adjustable opening angle; a third air valve located at a third air outlet, with an adjustable opening angle; and a fourth air valve located at a fourth air outlet, with an adjustable opening angle. The controller controls the opening angles of the first, second, third, and fourth air valves based on the elevator's load parameters. Since higher elevator interior temperatures, higher elevator loads, more passengers, and frequent door opening and closing lead to significant cooling loss and increased load, the aforementioned load parameters include at least one of the following: elevator interior temperature, number of passengers, and elevator door opening and closing frequency.

[0044] Example 2

[0045] This embodiment provides an elevator, including the air conditioning equipment described in the above embodiment.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An air conditioning device applied to an elevator, the elevator comprising a protective outer shell and an inner wall, wherein the protective outer shell and the inner wall are hollow, and the inner wall comprises a top surface, a bottom surface, and side walls, characterized in that, The air conditioning equipment includes: A heat exchange coil is disposed between the protective outer shell and the side wall; The first air vent is located at the top of the protective casing; The second air vent is located at the bottom of the protective casing; The third air vent is located on the inner wall of the elevator, in the upper part of the elevator's interior space. The fourth air vent is located on the inner wall of the elevator, in the lower part of the elevator's interior space.

2. The air conditioning equipment according to claim 1, characterized in that, The third air vent is located on the top surface of the inner wall or on the upper part of the side wall; The fourth air vent is located on the bottom surface of the inner wall or the lower part of the side wall.

3. The air conditioning equipment according to claim 1, characterized in that, The air conditioning equipment also includes: Water inlet pipe, connected to the water inlet of the heat exchange coil; The water outlet pipe is connected to the water outlet of the heat exchange coil.

4. The air conditioning equipment according to claim 1, characterized in that, The air conditioning equipment also includes: The first air valve is located at the first air outlet, and the opening angle of the first air valve is adjustable. The second air valve is located at the second air outlet, and the opening angle of the second air valve is adjustable. A third air valve is installed at the third air outlet, and the opening angle of the third air valve is adjustable. A fourth air valve is installed at the fourth air outlet, and the opening angle of the fourth air valve is adjustable; The controller is used to control the opening angles of the first air valve, the second air valve, the third air valve, and the fourth air valve according to the elevator's load parameters; wherein the load parameters include the elevator's internal temperature, the number of passengers, and the elevator door opening and closing frequency.

5. An elevator, characterized in that, The air conditioning equipment includes any one of claims 1 to 4.

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