Low-temperature air conditioning unit access door structure and low-temperature air conditioning unit

Abstract

The utility model belongs to the technical field of air conditioning equipment, and discloses a low-temperature air conditioning unit access door structure and a low-temperature air conditioning unit. The access door structure of the low-temperature air conditioning unit comprises an air conditioning unit panel, a door body and a temperature sensing element. Wherein the door body is rotationally connected with the air conditioning unit panel, a mounting cavity is formed in the door body, and a heating piece is arranged in the mounting cavity. The temperature sensing element is arranged on the air conditioning unit panel and used for detecting the temperature of the air conditioning unit panel. According to the access door structure of the low-temperature air conditioning unit, the heating piece is arranged on the door body, when the temperature of the door body is too low, the door body is heated, the door frame is prevented from frosting or freezing, and the problems of mildewing or difficult overhaul are avoided. And the mounting cavity is formed in the door body, so that the heating piece can be buried in the door body, and a good heating effect is achieved. The temperature sensing element is arranged on the door frame to measure the temperature of the door frame, and the heating element adjusts the temperature according to the temperature of the door frame, so that the door frame can be prevented from forming a cold bridge, and energy waste can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning equipment, in particular to a low-temperature air-conditioning unit maintenance door structure and a low-temperature air-conditioning unit. Background Art

[0002] Air conditioning box, also known as combined air conditioning unit or air handling unit, is a device specially used for processing air. Air conditioning box has multiple functions such as cooling, dehumidification and drying, heating and humidification, filtration and purification, and is widely used in the fields of biomedicine, electronic semiconductors, automobile spraying or textile factories. Placing the heat exchange equipment in a closed low-temperature air conditioning box can reduce energy loss and improve heat exchange efficiency. The air conditioning box body is usually equipped with an openable and closable inspection door, which maintenance personnel can open to maintain and repair the internal heat exchange equipment.

[0003] The existing inspection door structure includes door panels, door frames, observation windows, door hinges and door locks, which usually only have inspection and observation functions. However, in some ultra-low temperature air conditioners, the door frames around the inspection door are very likely to form cold bridges, causing frost or ice on the door frames, which in turn causes the inspection door to become moldy or difficult to open and close.

[0004] Therefore, it is urgent to propose a low-temperature air-conditioning unit maintenance door structure and a low-temperature air-conditioning unit to solve the above problems. Utility Model Content

[0005] One purpose of the utility model is to provide a maintenance door structure for a low-temperature air-conditioning unit, which can effectively prevent frost or ice on the door frame to avoid mold or maintenance difficulties.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A low-temperature air conditioning unit maintenance door structure, comprising:

[0008] An air conditioning unit panel, wherein a door frame is provided on the air conditioning unit panel;

[0009] A door body, wherein the door body and the door frame are rotatably connected, an installation cavity is provided in the door body, and a heating element is provided in the installation cavity;

[0010] A temperature sensing element is arranged on the door frame and is used to detect the temperature of the door frame.

[0011] Optionally, the installation cavity includes a longitudinal installation cavity, the longitudinal installation cavity is arranged along the length direction of the door body, and the heating element in the longitudinal installation cavity is arranged along the extension direction of the longitudinal installation cavity.

[0012] Optionally, the number of the longitudinal installation cavities is at least two, and at least one longitudinal installation cavity is respectively provided on two long sides of the door body close to the door frame.

[0013] Optionally, the installation cavity further includes a transverse installation cavity, the transverse installation cavity is arranged along the width direction of the door body, and the heating element in the transverse installation cavity is arranged along the extension direction of the transverse installation cavity.

[0014] Optionally, the number of the transverse installation cavities is at least two, and at least one transverse installation cavity is respectively provided on two short sides of the door body close to the door frame.

[0015] Optionally, the heating element is an electric heating wire.

[0016] Optionally, the low-temperature air-conditioning unit inspection door structure also includes an inner door frame and an inner door body, the inner door frame is arranged on the air-conditioning unit panel, the inner door body and the inner door frame are rotatably connected, the inner door body opens toward the inside of the air-conditioning unit, and the door body opens toward the outside of the air-conditioning unit.

[0017] Optionally, the inner door body and the door body are spaced apart to form a sealed temperature-insulating chamber.

[0018] Optionally, an observation window is provided on the inner door body.

[0019] Another object of the utility model is to provide a low-temperature air conditioning unit, which can effectively prevent frost or ice on the door frame to avoid mold or maintenance difficulties.

[0020] To achieve this purpose, the utility model adopts the following technical solutions:

[0021] A low-temperature air-conditioning unit comprises the above-mentioned low-temperature air-conditioning unit maintenance door structure.

[0022] Beneficial effects:

[0023] The low-temperature air conditioning unit maintenance door structure provided by the utility model heats the door body by arranging a heating element on the door body when the door body temperature is too low, thereby preventing the door frame from frosting or icing, thereby avoiding the problem of mold or difficulty in maintenance. By arranging an installation cavity inside the door body, the heating element can be buried inside the door body, thereby achieving a good heating effect. By arranging a temperature sensing element on the door frame to measure the door frame temperature, the heating element adjusts the temperature according to the door frame temperature, thereby preventing the door frame from forming a cold bridge and reducing energy waste.

[0024] The utility model also provides a low-temperature air-conditioning unit, including the above-mentioned low-temperature air-conditioning unit inspection door structure. The inspection door of the low-temperature air-conditioning unit is provided with a heating element, which can heat the door frame when the door frame temperature is low, effectively reducing the problem of frost or ice on the door frame. The door frame temperature is measured by a temperature sensing element, and the heating element is controlled according to the door frame temperature, ensuring that the heating element can prevent frost or ice, and at the same time, it can also avoid energy waste caused by excessively high temperature of the heating element. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0026] Figure 1 The utility model is a structural schematic diagram of the maintenance door structure of a low-temperature air-conditioning unit.

[0027] In the figure:

[0028] 100. Air conditioning unit panel; 200. Door body; 300. Installation cavity. DETAILED DESCRIPTION

[0029] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] See also Figure 1 This embodiment provides a low-temperature air conditioning unit maintenance door structure, including: an air conditioning unit panel 100, a door body 200 and a temperature sensing element. The door body 200 is rotatably connected to the air conditioning unit panel 100, and a mounting cavity 300 is provided in the door body 200, and a heating element is provided in the mounting cavity 300. The temperature sensing element is provided on the air conditioning unit panel 100, and is used to detect the temperature of the air conditioning unit panel 100.

[0034] The above-mentioned low-temperature air conditioning unit maintenance door structure is provided with a heating element on the door body 200. When the temperature of the door body 200 is too low, the door body 200 is heated to prevent the door frame from frosting or icing, thereby avoiding the problem of mold or difficulty in maintenance. By providing an installation cavity 300 inside the door body 200, the heating element can be buried inside the door body 200 to play a good heating role. By providing a temperature sensing element on the door frame to measure the temperature of the door frame, the heating element adjusts the temperature according to the temperature of the door frame, which can not only avoid the formation of cold bridges in the door frame, but also reduce energy waste.

[0035] Optionally, the temperature sensing element may be a temperature sensor. The temperature sensing element is connected to the air conditioning unit control unit signal, the temperature sensing element detects the door frame temperature and transmits the detected temperature signal to the control unit, and the control unit controls the operating time and heating temperature of the heating element according to the temperature information. The setting of the control unit is a mature technical means in the art and will not be described in detail here.

[0036] Further, the installation cavity 300 includes a longitudinal installation cavity, which is arranged along the length direction of the door body 200, and the heating element in the longitudinal installation cavity is arranged along the extension direction of the longitudinal installation cavity. Optionally, the number of longitudinal installation cavities is at least two, and at least one longitudinal installation cavity is respectively arranged on the two long sides of the door body 200 close to the door frame.

[0037] It is understandable that frost or ice usually occurs at the door frame, so setting the longitudinal installation cavity close to the long side of the door frame can effectively reduce the occurrence of frost or ice on the door frame. In this embodiment, two longitudinal installation cavities are provided, and the two longitudinal installation cavities are respectively located near the two long sides of the door frame. In other embodiments, the number of longitudinal installation cavities can also be three, four, or five, and the plurality of longitudinal installation cavities are spaced apart along the width direction of the door body 200.

[0038] Furthermore, the installation cavity 300 also includes a transverse installation cavity, which is arranged along the width direction of the door body 200, and the heating element in the transverse installation cavity is arranged along the extension direction of the transverse installation cavity. The number of transverse installation cavities is at least two, and at least one transverse installation cavity is respectively arranged on the two short sides of the door body 200 close to the door frame.

[0039] In this embodiment, the number of transverse installation cavities is two, and the two transverse installation cavities are respectively located near the two short sides of the door frame. In other embodiments, the number of transverse installation cavities can be three, four, or five, etc., and the plurality of transverse installation cavities are arranged at intervals along the length direction of the door body 200. The number of transverse installation cavities can be set according to the use requirements and is not specifically limited here.

[0040] Furthermore, the heating element is an electric heating wire, and its main material can be iron-chromium-aluminum alloy, nickel-chromium alloy, copper-nickel alloy or molybdenum alloy, etc., which can be selected according to the specific use requirements. Optionally, the heating element is fixed to the inner wall of the installation cavity 300 by welding.

[0041] Furthermore, the low-temperature air-conditioning unit maintenance door structure also includes an inner door frame and an inner door body. The inner door frame is arranged on the air-conditioning unit panel 100. The inner door body and the inner door frame are rotatably connected. The inner door body opens toward the inside of the air-conditioning unit, and the door body 200 opens toward the outside of the air-conditioning unit.

[0042] By setting the inspection door structure as a double-layer door structure, the sealing effect can be effectively increased, the cold inside the air-conditioning unit can be prevented from leaking out, the operating efficiency of the air-conditioning unit can be improved, and energy saving and consumption reduction can be achieved. Optionally, handles are provided on the door body 200 and the inner door body to facilitate the operator to open. The door frame and the door body 200 are arranged on the outside, and the inner door frame and the inner door body are arranged on the inside to avoid interference between the two. A sealing strip is sandwiched between the door frame and the inner door frame to prevent cold leakage. Optionally, the door body 200 and the door frame, as well as the inner door body and the inner door frame, are all rotatably connected by hinges.

[0043] Furthermore, the inner door body and the door body 200 are spaced apart to form a sealed temperature-insulating chamber.

[0044] By forming a sealed insulation cavity between the inner door body and the door body 200, the heat exchange between the air conditioning unit and the outside can be effectively reduced, ensuring efficient operation of the air conditioning unit. Optionally, thermal insulation cotton can be bonded to the inner door body to further enhance the thermal insulation effect.

[0045] Furthermore, an observation window is provided on the inner door body, through which the operation of the internal equipment can be observed, which increases the convenience for personnel to observe.

[0046] This embodiment also provides a low-temperature air conditioning unit, including the above-mentioned low-temperature air conditioning unit inspection door structure. The inspection door of the low-temperature air conditioning unit is provided with a heating element, which can heat the door frame when the door frame temperature is low, effectively reducing the problem of frost or ice on the door frame. The door frame temperature is measured by a temperature sensing element, and the heating element is controlled according to the door frame temperature, ensuring that the heating element can prevent frost or ice, and at the same time, it can also avoid energy waste caused by excessive temperature of the heating element.

[0047] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A low temperature air conditioning unit maintenance door structure, characterized in that: include: An air conditioning unit panel (100), wherein a door frame is provided on the air conditioning unit panel (100); A door body (200), wherein the door body (200) and the door frame are rotatably connected, an installation cavity (300) is provided in the door body (200), and a heating element is provided in the installation cavity (300); A temperature sensing element is arranged on the door frame and is used to detect the temperature of the door frame.

2. The low temperature air conditioning unit maintenance door structure according to claim 1, characterized in that: The installation cavity (300) comprises a longitudinal installation cavity, the longitudinal installation cavity is arranged along the length direction of the door body (200), and the heating element in the longitudinal installation cavity is arranged along the extension direction of the longitudinal installation cavity.

3. The low temperature air conditioning unit maintenance door structure according to claim 2, characterized in that: The number of the longitudinal installation cavities is at least two, and at least one longitudinal installation cavity is respectively arranged on two long sides of the door body (200) close to the door frame.

4. The low temperature air conditioning unit maintenance door structure according to claim 1, characterized in that: The installation cavity (300) further comprises a transverse installation cavity, the transverse installation cavity is arranged along the width direction of the door body (200), and the heating element in the transverse installation cavity is arranged along the extension direction of the transverse installation cavity.

5. The low temperature air conditioning unit maintenance door structure according to claim 4, characterized in that: The number of the transverse installation cavities is at least two, and at least one transverse installation cavity is respectively arranged on two short sides of the door body (200) close to the door frame.

6. The low temperature air conditioning unit maintenance door structure according to any one of claims 1 to 5, characterized in that: The heating element is an electric heating wire.

7. The low-temperature air conditioning unit maintenance door structure according to any one of claims 1 to 5, characterized in that: The low-temperature air-conditioning unit inspection door structure also includes an inner door frame and an inner door body, wherein the inner door frame is arranged on the air-conditioning unit panel (100), the inner door body and the inner door frame are rotatably connected, the inner door body opens toward the inside of the air-conditioning unit, and the door body (200) opens toward the outside of the air-conditioning unit.

8. The low-temperature air conditioning unit maintenance door structure according to claim 7, characterized in that: The inner door body and the door body (200) are spaced apart to form a sealed temperature-insulating chamber.

9. The low-temperature air conditioning unit maintenance door structure according to claim 7, characterized in that: An observation window is arranged on the inner door body.

10. A low temperature air conditioning unit, characterized in that: It comprises a low-temperature air conditioning unit maintenance door structure as described in any one of claims 1 to 9.

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