Air handling modules and cabinets for cabinets

Abstract

The present invention discloses an air processing module for a cabinet and a cabinet, wherein the air processing module for the cabinet comprises: an air outlet, a shell, a fan and a purification module. The shell comprises a back plate, a fresh air inlet is formed on the back plate, a pivotable fresh air inlet baffle is arranged at the fresh air inlet, the fresh air inlet baffle is used to open and close the fresh air inlet and is suitable for adjusting the air volume of the airflow entering from the fresh air inlet; the fan is arranged in the shell; the purification module is arranged upstream of the fan, and the airflow entering from the fresh air inlet into the shell flows through the purification module and the fan in sequence and then is sent out from the air outlet. According to the air processing module of the present invention, a fresh air inlet is formed on the back plate of the air processing module, so that outside air can flow into the air processing module, and a fresh air inlet baffle is arranged at the fresh air inlet, so as to open and close the fresh air inlet and adjust the air volume of the airflow entering from the fresh air inlet.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning and refrigeration, and in particular to an air processing module for a cabinet and the cabinet. Background Art

[0002] In the related art, the air-conditioning cabinet only has the function of cooling, or cooling and heating at the same time, but cannot purify the indoor or outdoor air. Summary of the invention

[0003] The present invention aims to solve at least one of the above-mentioned technical problems in the prior art to a certain extent. To this end, the present invention proposes an air handling module for a cabinet, the fresh air inlet of the air handling module can be opened or closed, and the flow rate of air entering the air handling module can be controlled.

[0004] The invention also proposes a cabinet having the above-mentioned air handling module for the cabinet.

[0005] An air handling module for a cabinet according to an embodiment of the present invention comprises: an air outlet; a shell, the shell comprising a back panel, a fresh air inlet is formed on the back panel, a pivotable fresh air inlet baffle is provided at the fresh air inlet, the fresh air inlet baffle is used to open and close the fresh air inlet and is suitable for adjusting the air volume of the airflow entering from the fresh air inlet; a fan, the fan is arranged in the shell; a purification module, the purification module is arranged upstream of the fan, the airflow entering the shell from the fresh air inlet flows through the purification module and the fan in sequence and is then delivered from the air outlet.

[0006] According to the air processing module for a cabinet unit according to the embodiment of the present invention, the fresh air inlet of the air processing module can be opened or closed, and the flow rate of air entering the air processing module can be controlled.

[0007] In addition, the air handling module for the cabinet according to the embodiment of the invention may also have the following additional technical features:

[0008] According to some embodiments of the present invention, the fresh air inlet is formed in a circular shape.

[0009] According to some embodiments of the present invention, the fresh air inlet is provided with a fresh air inlet portion which surrounds the peripheral wall of the fresh air inlet, and the fresh air inlet portion includes: a baffle mounting portion, which extends forward from the side wall of the fresh air inlet, wherein the fresh air inlet baffle is mounted on the baffle mounting portion; and a fresh air interface, which extends backward from the side wall of the fresh air inlet.

[0010] According to some embodiments of the present invention, the fresh air inlet baffle includes a baffle body and a pivot shaft located in the same plane as the baffle body and passing through the center of the baffle body, both ends of the pivot shaft are passed through the baffle mounting portion, and one of the two ends of the pivot shaft is connected to a motor.

[0011] According to some embodiments of the present invention, a first mounting hole and a second mounting hole are formed on the baffle mounting portion, respectively cooperating with the two ends of the pivot shaft, and the first mounting hole and the second mounting hole both penetrate the baffle mounting portion along the thickness direction of the baffle mounting portion, and the second mounting hole has an opening that penetrates the front end surface of the baffle mounting portion.

[0012] According to some embodiments of the present invention, the width of the front end of the opening gradually decreases from front to back.

[0013] According to some embodiments of the present invention, the pivot axis is arranged in a vertical direction, and the second mounting hole is located below the first mounting hole.

[0014] According to some embodiments of the present invention, the motor is connected to the lower end of the pivot shaft.

[0015] According to some embodiments of the present invention, baffles are respectively provided at the two ends of the pivot shaft, and the baffles are located between the baffle body and the inner peripheral wall of the baffle mounting portion.

[0016] A cabinet unit according to another aspect of the present invention comprises the above-mentioned air processing module and indoor heat exchange module for the cabinet unit, wherein the air processing module and the indoor heat exchange module are arranged up and down. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the structure of a cabinet according to an embodiment of the present invention;

[0018] Figure 2 is a schematic structural diagram of a fresh air inlet baffle of a rear back plate when it is closed according to an embodiment of the present invention;

[0019] Figure 3 is a schematic structural diagram of a rear panel according to an embodiment of the present invention, wherein a fresh air inlet baffle and an indoor air inlet baffle are not shown;

[0020] Figure 4 is a schematic structural diagram of a fresh air inlet baffle of a rear back plate when it is opened according to an embodiment of the present invention;

[0021] Figure 5 is an exploded view of a back plate according to an embodiment of the present invention;

[0022] Figure 6 is a cross-sectional view of an air processing module according to an embodiment of the present invention;

[0023] Figure 7 is an exploded view of a fan according to an embodiment of the present invention;

[0024] Figure 8 is an exploded diagram of a purification module according to an embodiment of the present invention.

[0025] Reference numerals:

[0026] Air processing module 100, air outlet 1, shell 2, back panel 21, fresh air inlet 211, fresh air inlet baffle 212, fan 3, purification module 4, fresh air inlet part 213, baffle mounting part 2131, fresh air interface 2132, baffle body 2121, pivot shaft 2122, motor 5, first mounting hole 21311, second mounting hole 21312, opening 21313, baffle 21221, cabinet 200, indoor heat exchange module 6. DETAILED DESCRIPTION

[0027] Embodiments of the present invention are described in detail below, examples of which 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 intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] Reference below Figure 1-Figure 8 The air processing module 100 for the cabinet 200 according to an embodiment of the present invention is described. The air processing module 100 can be applied to the cabinet 200. The cabinet 200 can be a single cooling machine with only a cooling function. Of course, the cabinet 200 can also be a cooling and heating machine with both cooling and heating functions. In the following description of the present application, the air processing module 100 is applied to the cabinet 200, such as a cooling and heating machine, as an example for explanation.

[0033] like Figure 1-Figure 8 As shown, an air processing module 100 for a cabinet 200 such as a cooling and heating machine according to an embodiment of the present invention may include: an air outlet 1, a shell 2, a fan 3 and a purification module 4.

[0034] like Figure 1-6As shown, the housing 2 includes a back plate 21, on which a fresh air inlet 211 is formed, and a pivotable fresh air inlet baffle 212 is provided at the fresh air inlet 211, and the fresh air inlet baffle 212 is used to open and close the fresh air inlet 211 and is suitable for adjusting the air volume of the airflow entering from the fresh air inlet 211. Specifically, the fresh air inlet 211 can be a through hole formed on the back plate 21, which is used to connect the inside of the air treatment module 100 with the outside (for example, outside the building, etc.), so that the outdoor air can enter the inside of the air treatment module 100 through the fresh air inlet 211. Here, it should be noted that "fresh air" can be understood as outdoor air, such as outside the building, or in the corridor of the building, or air that has not been circulated by the air conditioning and ventilation system before entering the building.

[0035] Among them, a fresh air inlet baffle 212 for opening or closing the fresh air inlet 211 is provided at the fresh air inlet 211. When the fresh air inlet baffle 212 closes the fresh air inlet 211, outside air cannot flow into the air treatment module 100 from the fresh air inlet 211. When the fresh air inlet baffle 212 opens the fresh air inlet 211, outside (i.e., outdoor) air can flow into the air treatment module 100 from the fresh air inlet 211. In addition, the fresh air inlet baffle 212 also has the function of regulating the flow rate of outside air flowing from the fresh air inlet 211 into the air treatment module 100. For example, when the ventilation part of the fresh air inlet 211 opened by the fresh air inlet baffle 212 is larger, the flow rate of the airflow of the outside air entering the air treatment module 100 is larger. When the ventilation part of the fresh air inlet 211 opened by the fresh air inlet baffle 212 is smaller, the flow rate of the airflow of the outside air entering the air treatment module 100 is smaller.

[0036] Therefore, by setting the fresh air inlet 211 and the fresh air inlet baffle 212, it is not only convenient for outside air to enter the air processing module 100, but also can prevent the outside dust and other debris from entering the air processing module 100 from the fresh air inlet 211 when the cabinet 200 is not running, causing adverse effects on the normal operation of the air processing module 100. In addition, the operator can also control the opening and closing size of the fresh air inlet 211 by controlling the fresh air inlet baffle 212, and then control the air volume of the airflow entering the air processing module 100 from the fresh air inlet 211, so as to control the exhaust volume of the air processing module 100, thereby facilitating the operation and control of the exhaust volume of the air processing module 100.

[0037] Combination Figure 6 and Figure 7As shown, the fan 3 is arranged in the housing 2. Specifically, the fan 3 is in air communication with the fresh air inlet 211, and provides power for the outside air to enter the air processing module 100 from the fresh air inlet 211. The fan 3 operates to form a low-pressure space in the air processing module 100. Since the outside air pressure is higher than the internal air pressure of the air processing module 100, the air will flow into the air processing module 100 from the fresh air inlet 211.

[0038] Combination Figure 6 and Figure 8 In the illustrated embodiment, the purification module 4 is arranged upstream of the fan 3, and the airflow entering the housing 2 from the fresh air inlet 211 flows through the purification module 4 and the fan 3 in sequence and is then sent out from the air outlet 1. Under the action of the fan 3, the outside air will flow into the air treatment module 100 from the fresh air inlet 211, and since the purification module 4 is arranged upstream of the fan 3, the inflowing air will first flow through the purification module 4, which will cause the particles in the air to settle to refresh the air, and then be transformed into pure air under the purification action of the purification module 4, and then flow to the fan 3, and the fan 3 will press the air to the air outlet 1, during which the air will also undergo other treatments (such as humidification, etc., in which case the cabinet 200 also includes a humidification module), and finally the completely treated air will be discharged from the air outlet 1 to the room. Here, it should be noted that "upstream" can be understood as the upstream in the flow direction of the air.

[0039] According to the air processing module 100 for the cabinet 200 of the embodiment of the present invention, a fresh air inlet 211 is formed on the back plate 21 of the air processing module 100, which allows outside air to flow into the air processing module 100, and a fresh air inlet baffle 212 is provided at the fresh air inlet 211, which is used to open and close the fresh air inlet 211 and adjust the air volume of the airflow entering from the fresh air inlet 211. When the air processing module 100 is applied to the cabinet 200, such as a cooling and heating machine, the functions of the cabinet 200, such as a cooling and heating machine, are expanded, so that the cabinet 200, such as a cooling and heating machine, can not only cool and heat, but also purify and / or humidify the air flowing into it, so as to better meet the actual needs of users.

[0040] Optionally, refer to Figure 1-Figure 6 The fresh air inlet 211 is formed in a circular shape. Since the shape of the external air duct is mostly circular, the fresh air inlet 211 is formed in a circular shape to facilitate connection with the external air duct, so that the connection and fixing effect is better, and the phenomenon that the external air duct falls off from the fresh air inlet 211 is avoided to affect the normal operation of the cabinet 200.

[0041] Combination Figure 3-Figure 5In the illustrated embodiment, a fresh air inlet 211 is provided with a fresh air inlet portion 213 surrounding the peripheral wall of the fresh air inlet 211, and the fresh air inlet portion 213 includes: a baffle mounting portion 2131 and a fresh air interface 2132. The baffle mounting portion 2131 extends forward from the side wall of the fresh air inlet 211, wherein the fresh air inlet baffle 212 is mounted on the baffle mounting portion 2131. Specifically, the shape of the fresh air inlet baffle 212 is suitable for following the shape of the fresh air inlet portion 213, and the fresh air inlet baffle 212 and the fresh air inlet portion 213 need to meet the clearance fit installation, thereby, when the fresh air inlet baffle 212 is installed on the baffle mounting portion 2131, the fresh air inlet baffle 212 can be rotated to realize the opening and closing of the fresh air inlet 211, and adjust the air volume of the airflow entering the air treatment module 100 from the fresh air inlet 211.

[0042] Further, the fresh air interface 2132 extends backward from the side wall of the fresh air inlet 211. Specifically, the external air duct is adapted to be seamlessly connected with the fresh air interface 2132 to form a complete air flow duct, so that outdoor air can flow into the air processing module 100 through the fresh air inlet 211. Thus, it is convenient to connect the external air duct to complete the air circulation, so that the outdoor air can flow smoothly into the air processing module 100.

[0043] Combination Figure 2 , Figure 4 and Figure 5In the illustrated embodiment, the fresh air inlet baffle 212 includes a baffle body 2121 and a pivot shaft 2122 located in the same plane as the baffle body 2121 and passing through the center of the baffle body 2121, both ends of the pivot shaft 2122 are passed through the baffle mounting portion 2131, and one of the two ends of the pivot shaft 2122 is connected to the motor 5. In other words, the fresh air inlet baffle 212 is a rotating body, and the pivot shaft 2122 passes through the baffle body 2121 in the same plane and is located at the center line of the baffle body 2121, thereby allowing the baffle body 2121 to rotate smoothly around the pivot shaft 2122, wherein both ends of the pivot shaft 2122 are respectively fixed to the baffle mounting portion 2131, thereby limiting the pivot shaft 2122 at the baffle mounting portion 2131, so that the fresh air inlet baffle 212 cannot move forward and backward but can only rotate around the pivot shaft 2122, thereby realizing the rotation of the fresh air inlet baffle 212, and further realizing the control of the opening and closing of the fresh air inlet port 211. Moreover, the air volume of the airflow entering from the fresh air inlet 211 can also be adjusted. When the baffle body 2121 rotates around the pivot shaft 2122, when the baffle body 2121 is perpendicular to the plane where the fresh air inlet 211 is located, the opening 21313 of the fresh air inlet 211 is the largest. At this time, the flow rate of air entering the air treatment module 100 from the fresh air inlet 211 is also the largest. When the baffle body 2121 is parallel to the plane where the fresh air inlet 211 is located, the air intake route is completely blocked. At this time, outside air cannot enter the air treatment module 100 from the fresh air inlet 211.

[0044] In addition, one end of the pivot shaft 2122 is also connected to a motor 5. Since the motor 5 can be fixed on the back plate 21 and cannot rotate by itself, when the motor 5 provides power to rotate the motor 5 shaft, the motor 5 will drive the pivot shaft 2122 to rotate, and then drive the baffle body 2121 to rotate, so as to control the opening and closing of the fresh air inlet 211 and adjust the air volume of the airflow entering from the fresh air inlet 211. Moreover, the use of the motor 5 to control the rotation of the fresh air inlet baffle 212 can realize the digitization and controllability of the rotation angle of the fresh air inlet baffle 212. The digitization of the rotation angle of the fresh air inlet baffle 212 can be realized by setting the relationship between the number on the adjustment button of the air conditioner remote control and the motor shaft rotation angle of the motor 5, so that the operator can more intuitively control and understand the size of the opening and closing angle of the fresh air inlet 211 controlled by the fresh air inlet baffle 212, thereby making the overall setting of the cabinet 200 more reasonable and humanized, and improving its use value. Optionally, the motor 5 is a stepping motor. But it is not limited to this.

[0045] Combination Figure 2 , Figure 4 and Figure 5In the illustrated embodiment, the baffle mounting portion 2131 is formed with a first mounting hole 21311 and a second mounting hole 21312 respectively matched with the two ends of the pivot shaft 2122, the first mounting hole 21311 and the second mounting hole 21312 both penetrate the baffle mounting portion 2131 along the thickness direction of the baffle mounting portion 2131, and the second mounting hole 21312 has an opening 21313 penetrating the front end surface of the baffle mounting portion 2131. Specifically, the first mounting hole 21311 is a full-circular hole penetrating the baffle mounting portion 2131 in the direction of penetrating the baffle mounting portion 2131, and when one end of the pivot shaft 2122 is inserted into the first mounting hole 21311, it cannot move parallel to this plane. The second mounting hole 21312 has an opening 21313, which makes it easy to install the fresh air inlet baffle 212 to the baffle mounting portion 2131. During installation, one end of the pivot shaft 2122 can be connected to the motor 5 first, and then the other end of the pivot shaft 2122 on the assembly consisting of the connected fresh air inlet baffle 212 and the motor 5 is inserted into the first mounting hole 21311 for limiting, and then the connecting section between one end of the pivot shaft 2122 and the motor 5 is installed from the opening 21313 into the second mounting hole 21312, and then the motor 5 is fixed to the back plate 21, thereby, both ends of the pivot shaft 2122 are limited, thereby achieving that the fresh air inlet baffle 212 cannot be moved and can only rotate around the pivot shaft 2122.

[0046] Further, refer to Figure 5 The width of the front end of the opening 21313 gradually decreases from front to back. Therefore, when the connecting section between the motor 5 and the pivot shaft 2122 is installed in the second installation hole 21312, such a setting can play a good guiding role, making the installation of the fresh air inlet baffle 212 more convenient and labor-saving.

[0047] According to some optional embodiments of the present invention, Figure 2 and Figure 4 As shown, the pivot shaft 2122 is arranged in the vertical direction, the second mounting hole 21312 is located below the first mounting hole 21311, and the motor 5 is connected to the lower end of the pivot shaft 2122. Thus, the fresh air inlet baffle 212 can be more stably installed and limited on the baffle mounting portion 2131.

[0048] Of course, the embodiments of the present invention are not limited to this. In other embodiments, since the fresh air inlet baffle 212 and the fresh air inlet portion 213 are both circular, the pivot shaft 2122 can be set in any direction. It is only necessary to ensure that the first mounting hole 21311 and the second mounting hole 21312 are set directly opposite each other, and the motor 5 is linearly connected to one end of the pivot shaft 2122 and fixed to the back panel 21.

[0049] like Figure 5As shown, baffles 21221 are respectively provided at both ends of the pivot shaft 2122 , and the baffles 21221 are located between the baffle body 2121 and the inner circumferential wall of the baffle mounting portion 2131 . Specifically, the cross-sectional area of ​​the baffle 21221 is larger than the cross-sectional area of ​​the first mounting hole 21311, thereby, the baffle 21221 can be clamped between the baffle body 2121 and the inner circumferential wall of the baffle mounting portion 2131, and when the fresh air inlet baffle 212 rotates around the pivot shaft 2122, the baffle 21221 directly contacts and rubs against the inner circumferential wall, rather than the baffle body 2121 contacting and rubbing against the inner circumferential wall of the baffle mounting portion 2131. Therefore, not only can the baffle body 2121 be effectively protected from friction damage, thereby avoiding damage to the fresh air inlet baffle 212, but also the friction force of the fresh air inlet baffle 212 during rotation can be reduced, thereby allowing the fresh air inlet baffle 212 to rotate more smoothly, thereby avoiding jamming and damage to the motor 5.

[0050] According to another embodiment of the present invention, a cabinet 200 includes the air processing module 100 and the indoor heat exchange module for the cabinet 200 described in the above embodiment, and the air processing module 100 and the indoor heat exchange module are arranged up and down.

[0051] Specifically, combined Figure 1 and Figure 6 In the illustrated embodiment, the indoor heat exchange module 6 is used to adjust the temperature of the air flow passing through it, thereby adjusting the temperature of the indoor air. The air treatment module 100 is used to purify the air flow passing through it, thereby injecting pure air into the room, wherein the indoor heat exchange module 6 is arranged on the air treatment module 100, or the air treatment module 100 is arranged on the indoor heat exchange module 6. The indoor heat exchange module 6 is used to cool or heat the air flow (for example, air, etc.) flowing through the indoor heat exchange module 6 to achieve the purpose of cooling or heating. The indoor heat exchange module 6 can only have a cooling function, and of course, the indoor heat exchange module 6 can also have cooling and heating functions at the same time. Among them, the indoor heat exchange module 6 can include a heat exchanger and an indoor heat exchange fan, etc. It can be understood that the specific structure and working principle of the indoor heat exchange module 6 are well known to those skilled in the art and will not be repeated here.

[0052] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0053] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A cabinet machine, characterized in that: include: Indoor heat exchange module; The air handling module comprises: an air outlet; a shell, the shell comprising a back plate, a fresh air inlet is formed on the back plate, a pivotable fresh air inlet baffle is provided at the fresh air inlet, the fresh air inlet baffle is used to open and close the fresh air inlet and is suitable for adjusting the air volume of the airflow entering from the fresh air inlet; a fan, the fan is arranged in the shell; a purification module, the purification module is arranged upstream of the fan, the airflow entering from the fresh air inlet into the shell flows through the purification module and the fan in turn and is sent out from the air outlet; the fresh air inlet is provided with a fresh air inlet portion surrounding the peripheral wall of the fresh air inlet, the fresh air inlet portion includes The invention relates to a method for cooling the fresh air inlet and the fresh air inlet baffle, wherein the air inlet baffle is installed on the baffle mounting portion; a fresh air interface, wherein the fresh air interface extends backward from the side wall of the fresh air inlet; the fresh air inlet baffle comprises a baffle body and a pivot shaft which is located in the same plane as the baffle body and passes through the center of the baffle body, wherein both ends of the pivot shaft are passed through the baffle mounting portion, and one of the two ends of the pivot shaft is connected to a motor; baffles are respectively provided at both ends of the pivot shaft, wherein the baffles are located between the baffle body and the inner peripheral wall of the baffle mounting portion, and the indoor heat exchange module is arranged above the air processing module; The baffle mounting portion is formed with a first mounting hole and a second mounting hole respectively matched with the two ends of the pivot shaft, the first mounting hole and the second mounting hole both penetrate the baffle mounting portion along the thickness direction of the baffle mounting portion, and the second mounting hole has an opening penetrating the front end surface of the baffle mounting portion; The width of the front end of the opening gradually decreases from front to back; Among them, when the fresh air inlet baffle is installed on the baffle mounting portion, one end of the pivot shaft is first connected to the motor, and then the other end of the pivot shaft on the assembly consisting of the connected fresh air inlet baffle and the motor is inserted into the first mounting hole for limiting, and then the connecting section between one end of the pivot shaft and the motor is installed from the opening into the second mounting hole, and then the motor is fixed to the back panel.

2. The cabinet according to claim 1, characterized in that: The fresh air inlet is formed in a circular shape.

3. The cabinet according to claim 1, characterized in that: The pivot shaft is arranged in a vertical direction, and the second mounting hole is located below the first mounting hole.

4. The cabinet according to claim 3, characterized in that: The motor is connected to the lower end of the pivot shaft.

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