Vertical air conditioner indoor unit

Abstract

The utility model discloses a vertical air conditioner indoor unit which comprises a machine shell, a heat exchanger, a heat exchange fan, a fresh air module, a fixing piece and a filtering device, a heat exchange air inlet, a heat exchange air outlet, a fresh air inlet and a fresh air outlet are formed in the machine shell, the heat exchanger, the heat exchange fan and the fresh air module are arranged in the machine shell, and the fresh air module comprises a fresh air volute and a fresh air fan. The fresh air fan is arranged in the fresh air volute; the fixing piece is arranged on the side, close to the fresh air inlet, of the fresh air volute and provided with a mounting cavity, an insertion opening and a ventilation opening, the filtering device is inserted into the mounting cavity through the insertion opening, and part of the filtering device is opposite to the ventilation opening; the minimum distance W between the first side and the second side of the insertion opening is larger than or equal to 40 mm and smaller than or equal to 45 mm. According to the vertical air conditioner indoor unit, the filtering device can be smoothly mounted or dismounted, the arms of a child can be prevented from stretching into the fixing piece through the insertion opening, and the risk that the arms of the child are injured by the fresh air fan is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to a vertical air conditioner indoor unit. Background Art

[0002] In the related art, more and more vertical air conditioners have added fresh air functions, that is, vertical air conditioners can introduce fresh air from the outside and discharge dirty air from the inside to achieve air purification, giving users a natural and comfortable experience. Among them, the filter is the core part of the fresh air system of the vertical air conditioner, which has the functions of filtering and purifying the air. However, the filter will accumulate many pollutants after long-term use, so it is necessary to replace the filter regularly. However, when replacing the filter, a large gap will appear after the filter located at the bottom is pulled out, and even the fresh air volute and the fresh air fan will be exposed. If the fresh air fan is running, it is easy for children to reach into the cavity inside the vertical air conditioner through the large gap, and there is a possibility of touching the rotating fresh air fan, which may cause a dangerous situation. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a vertical air conditioner indoor unit that ensures smooth installation and removal of the filter device while restricting the insertion of a child's arm into the fixing member through the insertion port, thereby reducing the risk of injury to the child's arm from the fresh air blower.

[0004] The indoor unit of the vertical air-conditioner of the utility model comprises: a casing, wherein the casing is formed with a heat exchange air inlet, a heat exchange air outlet, a fresh air inlet and a fresh air outlet; the heat exchanger is arranged in the casing; the heat exchange fan is arranged in the casing, and the rotation of the heat exchange fan can make the air enter the casing from the heat exchange inlet, and can make the air entering the casing flow to the heat exchanger after exchanging heat with the heat exchanger and enter the indoor through the heat exchange outlet; the fresh air module is arranged in the casing, and the fresh air module comprises: a fresh air volute and a fresh air blower, and the fresh air blower is arranged in the fresh air volute, and the fresh air blower is located below the heat exchange fan, and the rotation of the fresh air blower can make the air enter the fresh air volute from the fresh air inlet, and then enter the indoor through the fresh air volute and the fresh air outlet; the vertical air conditioner The air conditioner also includes: a fixing part, which is arranged on a side of the fresh air volute adjacent to the fresh air inlet, the fixing part having an installation cavity and an insertion port and a ventilation port connected to the installation cavity, the ventilation port being opposite to the fresh air inlet; a filtering device, the filtering device is inserted into the installation cavity through the insertion port, and part of the filtering device is opposite to the ventilation port; wherein, the insertion port is formed on one side of the fixing part in the width direction of the casing, and part of the fresh air volute is opposite to the insertion port in the thickness direction of the casing; the side of the insertion port adjacent to the fresh air inlet in the thickness direction of the casing is the first side, and the side of the insertion port away from the fresh air inlet in the thickness direction of the casing is the second side, and the minimum distance between the first side and the second side is W, wherein, W satisfies: 40mm≤W≤45mm.

[0005] According to the embodiment of the present invention, the vertical air conditioner indoor unit is equipped with a fixing member for fixing the filter device between the fresh air volute and the fresh air outlet. The filter device can be inserted into the fixing member through the fixing member's insertion opening, and the minimum width of the insertion opening in the thickness direction of the housing is controlled to be between 40mm and 45mm. This ensures that the filter device can be smoothly installed or removed while preventing children's arms from reaching into the fixing member through the insertion opening, thereby reducing the risk of children's arms being injured by the fresh air blower.

[0006] According to some embodiments of the present invention, the minimum distance between the end of the insertion port adjacent to the fresh air inlet and the fresh air volute in the thickness direction of the housing is L, where L and W satisfy the relationship: L < W. This minimizes the thickness of the vertical air conditioner indoor unit, facilitates its miniaturized design, and improves its practicality.

[0007] According to some embodiments of the present invention, L satisfies the following conditions: 5 mm ≤ L ≤ 12 mm. This ensures smooth assembly and disassembly of the filter assembly while also serving as a secondary barrier to prevent children's arms from entering the mounting cavity of the fixture, further improving the safety of the indoor unit of the vertical air conditioner.

[0008] According to some embodiments of the present invention, L further satisfies the following: 10 mm ≤ L ≤ 12 mm. This further restricts children's arms from entering the mounting cavity of the fixing member, thereby further improving the safety of the vertical air conditioner indoor unit.

[0009] According to some embodiments of the present invention, the fresh air volute includes: a front volute, the front volute is arranged on a side of the fixing member away from the fresh air inlet, and a portion of the front volute protrudes in a direction toward the fixing member to form a first protrusion; a rear volute, the rear volute is arranged on a side of the front volute away from the fixing member, and a portion of the rear volute protrudes in a direction away from the front volute to form a second protrusion, the second protrusion and the first protrusion jointly define an accommodating cavity, and the fresh air blower is arranged in the accommodating cavity; a baffle, the baffle is arranged on a side of the front volute adjacent to the insertion port, and the width of the insertion port along the thickness direction of the casing is greater than the width of the baffle. This arrangement ensures that there is a gap between the front surface of the baffle and the front end of the insertion port, so that the filter device can pass through the above gap and be installed in the fixing member.

[0010] According to some embodiments of the present invention, the maximum distance between the baffle and the insertion port in the width direction of the housing is D, where D satisfies the following: 40 mm ≤ D ≤ 50 mm. This allows for smooth installation and removal of the filter device while ensuring aesthetics, improves space utilization, reduces the size of the portion of the filter device between the baffle and the insertion port, and reduces costs.

[0011] According to some embodiments of the present invention, D further satisfies: 45 mm ≤ D ≤ 48 mm. This allows the filter device to be smoothly installed and disassembled, further improves space utilization, and reduces costs.

[0012] According to some embodiments of the present invention, the fixing member includes: two first side panels, the two first side panels are spaced apart along the height direction of the casing, and each first side panel extends along the width direction of the casing; two second side panels, the two second side panels are spaced apart along the width direction of the casing, and both ends of each second side panel are respectively connected to the two first side panels, and the insertion port is formed on one of the two second side panels.

[0013] According to some embodiments of the present invention, the filter device includes a filter screen and a handle connected to each other, the filter screen is located in the installation cavity and opposite to the vent, and the handle is located at the insertion port; at least one slot is formed on one of the handle and the fixing member, and at least one clip is provided on the other of the handle and the fixing member, and the clip fits into the slot. As a result, the air flowing in from the fresh air inlet can flow into the fresh air volute under the guidance of the side panels (i.e., the first side panel and the second side panel mentioned above), ensuring that the air filtered by the filter device can all flow into the fresh air volute, ensuring that the vertical air conditioner indoor unit has a good fresh air function and can better regulate the quality of the indoor air.

[0014] According to the embodiment of the utility model, the vertical air-conditioning indoor unit includes: a casing, the casing is formed with a heat exchange inlet, a heat exchange outlet, a fresh air inlet and a fresh air outlet; a heat exchanger, the heat exchanger is arranged in the casing; a heat exchange fan, the heat exchange fan is arranged in the casing, the rotation of the heat exchange fan can make air enter the casing from the heat exchange inlet, and can make the air entering the casing flow to the heat exchanger, and enter the room through the heat exchange outlet after heat exchange with the heat exchanger; a fresh air module, the fresh air module is arranged in the casing, the fresh air module includes: a fresh air volute and a fresh air fan, the fresh air fan is arranged in the fresh air volute, the fresh air fan is located below the heat exchange fan, and the rotation of the fresh air fan can make air enter the fresh air volute from the fresh air inlet The fresh air is then drawn into the air by the guide rails and into the casing, and then enters the room through the fresh air volute and the fresh air outlet; the vertical air conditioner indoor unit also includes: a fixing part, the fixing part is arranged on a side of the fresh air volute adjacent to the fresh air inlet, the fixing part has an installation cavity and an insertion port and a vent connected to the installation cavity, and the vent is opposite to the fresh air inlet; a filter device, the filter device is inserted into the installation cavity through the insertion port, and part of the filter device is opposite to the vent; wherein the fixing part is formed with the insertion port on one side in the width direction of the casing, and part of the fresh air volute is opposite to the insertion port in the thickness direction of the casing; the minimum distance between the two sides of the insertion port in the thickness direction of the casing is W, wherein W satisfies: 40mm≤W≤45mm.

[0015] According to the embodiment of the present invention, the vertical air conditioner indoor unit is provided with a fixing member for fixing the filter device between the fresh air volute and the fresh air outlet. The filter device can be inserted into the fixing member through the fixing member's insertion opening, and the width of the insertion opening in the thickness direction of the housing is controlled to be between 40mm and 45mm. This ensures that the filter device can be smoothly installed or removed while restricting a child's arm from reaching into the fixing member through the insertion opening, thereby reducing the risk of injury to a child's arm from the fresh air blower and ensuring that the vertical air conditioner indoor unit has a good fresh air function.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 is a schematic diagram of a vertical air conditioner indoor unit according to an embodiment of the present utility model;

[0019] Figure 2 yes Figure 1 A cross-sectional view of a vertical air conditioner indoor unit is shown;

[0020] Figure 3 yes Figure 1 A cross-sectional view of a vertical air conditioner indoor unit is shown, wherein the filter device is not shown;

[0021] Figure 4 Schematic diagram of a fresh air module and fixing components of a vertical air conditioner indoor unit according to an embodiment of the present invention;

[0022] Figure 5 yes Figure 4 The front view of the fresh air module and fixing parts of the vertical air conditioner indoor unit shown;

[0023] Figure 6 yes Figure 4 An exploded view of the fresh air module and fixings of the vertical air conditioner indoor unit is shown;

[0024] Figure 7 is another cross-sectional view of the vertical air conditioner indoor unit according to an embodiment of the present invention, wherein the filter device is not shown;

[0025] Figure 8 is another cross-sectional view of the indoor unit of a vertical air conditioner according to an embodiment of the present invention, wherein the filter device is not shown;

[0026] Figure 9is another cross-sectional view of the vertical air conditioner indoor unit according to an embodiment of the present utility model, wherein the filter device is not shown;

[0027] Figure 10 This is a partial side view of a fresh air module and a fixing member of a vertical air conditioner indoor unit according to an embodiment of the present utility model;

[0028] Figure 11 It is a schematic diagram of a fixing member of a vertical air conditioner indoor unit according to an embodiment of the present utility model.

[0029] Reference numerals:

[0030] 100: Vertical air conditioner indoor unit;

[0031] 10: Casing: 101: Heat exchange air inlet; 102: Fresh air inlet; 20: Fresh air module; 201: Fresh air volute; 2011: Front volute; 2012: First protrusion; 2013: Rear volute; 2014: Second protrusion; 2015: Accommodating chamber; 202: Fresh air fan; 203: Baffle; 30: Fixing part; 301: Installation chamber; 302: Insertion port; 303: Ventilation port; 304: First side panel; 305: Second side panel; 306: Buckle; 40: Filter device; 401: Filter net; 402: Handle. DETAILED DESCRIPTION

[0032] Reference below Figures 1-11 A vertical air conditioner indoor unit 100 according to an embodiment of the present invention is described.

[0033] like Figures 1-11 As shown, the vertical air conditioner indoor unit 100 according to an embodiment of the present invention may include a casing 10, on which a heat exchange air inlet 101, a heat exchange air outlet, a fresh air inlet 102 and a fresh air outlet are formed, and the casing 10 can form a accommodating space to facilitate fixing the components of the vertical air conditioner indoor unit 100 and to protect the components of the vertical air conditioner indoor unit 100.

[0034] The vertical air conditioner indoor unit 100 may include a heat exchanger disposed within the housing 10. The heat exchanger may be positioned adjacent to the heat exchange air outlet. When the vertical air conditioner indoor unit 100 is in operation, indoor air may flow into the housing 10 through the heat exchange air inlet 101 of the housing 10, exchange heat with the heat exchanger to form a heat exchange airflow, and then be discharged into the room through the heat exchange air outlet. The heat exchanger may then be used to heat or cool the airflow, thereby achieving heating or cooling of the indoor air.

[0035] The inner unit 100 of the vertical air conditioner can include an air duct member arranged in the cabinet 10 and adjacent to the heat exchange air inlet. The air duct member can guide the air flowing into the cabinet 10, so that the air flow can flow more uniformly and orderly, and the air flowing into the cabinet 10 can flow through the heat exchanger and exchange heat with the heat exchanger, so as to improve the heat exchange efficiency.

[0036] The inner unit 100 of the vertical air conditioner can include a heat exchange fan arranged in the cabinet 10. Specifically, the heat exchange fan can be arranged in the air duct member, and the heat exchange fan can make the air flow into the cabinet 10 from the heat exchange air inlet 101, and make the air flowing into the cabinet 10 flow to the heat exchanger, and then flow into the room through the heat exchange air outlet after exchanging heat with the heat exchanger. The heat exchange fan can drive the air flow to increase the flow speed of the air flow, thereby improving the heat exchange efficiency of the air and the heat exchanger, and improving the cooling or heating efficiency of the inner unit 100 of the vertical air conditioner.

[0037] The inner unit 100 of the vertical air conditioner can include a fresh air module 20 arranged in the cabinet 10, and the fresh air module 20 includes a fresh air volute 201 and a fresh air fan 202 arranged in the fresh air volute 201. The fresh air fan 202 is located below the heat exchange fan, and the fresh air fan 202 can make the air flow into the fresh air volute 201 from the fresh air inlet 102, and then flow into the room through the fresh air volute 201 and the fresh air outlet. The fresh air fan 202 can be arranged adjacent to the fresh air inlet 102, and the fresh air fan 202 and the heat exchange fan are arranged along the height direction (for example, the up-down direction in the figure) of the cabinet 10. The fresh air volute 201 has the same function as the air duct member, and can guide the air flowing into the fresh air volute 201 to flow more uniformly and orderly. The fresh air fan 202 can drive the outdoor air to flow into the fresh air volute 201 through the fresh air inlet 102, and then flow into the room through the fresh air outlet under the guidance of the fresh air volute 201, so as to adjust the air quality in the room. Figure 1

[0038] The inner unit 100 of the vertical air conditioner can include a fixing member 30 arranged on one side of the fresh air volute 201 adjacent to the fresh air inlet 102. The fixing member 30 has a mounting cavity 301, an insertion opening 302 and a ventilation opening 303 communicating with the mounting cavity 301, and the ventilation opening 303 is opposite to the fresh air inlet 102. The filter device 40 can be fixed between the fresh air inlet 102 and the ventilation opening 303 through the fixing member 30, so as to avoid the shaking of the filter device 40 relative to the cabinet 10 caused by the air flow.

[0039] ​The indoor unit 100 of the vertical air conditioner can include a filtering device 40, which is inserted into the installation cavity 301 through the insertion opening 302, and part of the filtering device 40 is opposite to the ventilation opening 303. The filtering device 40 can filter and purify the air to improve the cleanliness of the airflow flowing into the fresh air volute 201 through the fresh air inlet 102.

[0040] Specifically, referring to Figures 1-10 , the heat exchange air inlet 101 is formed in the upper half of the cabinet 10, the fresh air inlet 102 is formed in the lower half of the cabinet 10, and the heat exchanger and the heat exchange fan are arranged in the upper half of the accommodation space of the cabinet 10 to ensure that cold air can be blown from top to bottom to the indoor when cooling, and the user's experience is ensured. The fresh air module 20 is arranged in the lower half of the accommodation space of the cabinet 10, the fresh air volute 201 is formed with an air opening, the air opening is opposite to the fresh air fan 202 and the fresh air inlet 102 respectively, the fixing member 30 is arranged between the fresh air volute 201 and the fresh air inlet 102, and the filtering device 40 is fixed to the fixing member 30 and located between the ventilation opening 303 and the fresh air inlet 102.

[0041] When the fresh air module 20 works, the fresh air fan 202 rotates to drive outdoor air to flow into the fresh air volute 201 through the fresh air inlet 102, the filtering device 40, the ventilation opening 303 and the air opening, the filtering device 40 filters and purifies the air flowing therethrough to remove pollutants in the air, and the clean air filtered by the filtering device 40 flows to the indoor through the fresh air outlet to adjust the indoor air quality, which can improve the user's experience and comfort.

[0042] The insertion opening 302 is formed on one side of the fixing member 30 in the width direction (for example, the left-right direction in Figure 1 , of the cabinet 10, and part of the fresh air volute 201 is opposite to the insertion opening 302 in the thickness direction (for example, the front-rear direction in Figure 1 of the cabinet. For example, the insertion opening 302 can extend along the height direction of the cabinet 10, and part of the fresh air volute 201 can be seen at the insertion opening 302. During installation, one end of the filtering device 40 can be inserted into the fixing member 30 through the insertion opening 302 from the left side or the right side of the cabinet 10, and then the filtering device 40 is pushed to move along the front surface of the fresh air volute 201 to fix the filtering device 40 in the installation cavity 301, and the part of the filtering device 40 located in the installation cavity 301 can completely cover the fresh air inlet 102, so that the air can be filtered by the filtering device 40 before flowing into the fresh air volute 201, and finally flowing out through the fresh air outlet.

[0043] Referring to Figure 7 and Figure 8 , the insertion opening 302 is in the thickness direction (for example, the front-rear direction in Figure 1The side of the air conditioner 100 adjacent to the fresh air inlet 102 in the front-rear direction of the air conditioner 100 is a first side, and the side of the air conditioner 100 away from the fresh air inlet 102 in the thickness direction of the air conditioner 100 is a second side. The minimum distance between the first side and the second side is W, and W satisfies: 40mm≤W.

[0044] That is, the width of the insertion opening 302 in the thickness direction of the casing 10 cannot be too small. If the width of the insertion opening 302 is too small, the installation and removal of the filter device 40 will be affected, and the filter device 40 is likely to interfere with the fixing member 30 during assembly, causing the filter device 40 to deform and seriously affecting the filtering effect of the filter device 40. Therefore, the width of the insertion opening 302 in the thickness direction of the casing 10 cannot be less than 40mm, so as to avoid the width of the insertion opening 302 in the thickness direction of the casing 10 being too small, so that the filter device 40 can be smoothly installed and removed on the fixing member 30 through the insertion opening 302, and interference between the filter device 40 and the fixing member 30 during disassembly is avoided.

[0045] Referring to Figure 7 and Figure 8 , the minimum distance between the first side and the second side is W, and W satisfies: W≤45mm.

[0046] That is, the width of the insertion opening 302 in the thickness direction of the casing 10 cannot be too large. If the width of the insertion opening 302 is too large, on the one hand, after the filter device 40 is removed, the appearance of the air conditioner 100 will be affected; on the other hand, the arms of children are likely to extend into the mounting cavity 301 of the fixing member 30 through the insertion opening 302, and when the fresh air fan 202 is working, there is a risk of accidentally touching the fresh air fan 202. Therefore, the width of the insertion opening 302 in the thickness direction of the casing 10 cannot be greater than 45mm, which can avoid the width of the insertion opening 302 in the thickness direction of the casing 10 being too large, so as to ensure the appearance of the outer surface of the air conditioner 100, and at the same time, the arms of children can be further limited to extend into the fixing member 30 through the insertion opening 302, thereby further reducing the risk of the arms of children being injured by the fresh air fan 202.

[0047] Preferably, the width of the insertion opening 302 in the thickness direction of the casing 10 can be controlled to be 44mm. In this way, while ensuring that the filter device 40 can be smoothly installed and removed, the arms of children can be limited to extend into the fixing member 30 through the insertion opening 302.

[0048] According to the vertical air conditioner indoor unit 100, the fixing part 30 of the fixed filtering device 40 is arranged between the fresh air volute 201 and the fresh air outlet 102, the filtering device 40 can be inserted on the fixing part 30 through the insertion port 302 of the fixing part 30, and the minimum width of the insertion port 302 in the thickness direction of the machine shell 10 is controlled to be between 40mm-45mm. Therefore, while ensuring that the filtering device 40 can be smoothly installed or removed, the risk of the child's arm being injured by the fresh air fan 202 can be reduced.

[0049] According to some embodiments of the utility model, as Figure 7 As shown in the thickness direction of the machine shell 10, the minimum distance between the one end of the insertion port 302 adjacent to the fresh air inlet 102 and the fresh air volute 201 is L, and L, W satisfy: L < W. When L > W, at this time, the side of the fresh air volute 201 adjacent to the fresh air inlet 102 in the thickness direction of the machine shell 10 is located in front of the insertion port 302, which leads to that the size of the fresh air module 20 in the thickness direction of the machine shell 10 is large, thereby increasing the thickness of the vertical air conditioner indoor unit 100, so that the vertical air conditioner indoor unit 100 occupies a large space, which is not conducive to the miniaturization design of the vertical air conditioner indoor unit 100, and the practicability of the vertical air conditioner indoor unit 100 is reduced. Therefore, by the minimum distance between the one end of the insertion port 302 adjacent to the fresh air inlet 102 and the fresh air volute 201 in the thickness direction of the machine shell 10 being less than the width of the insertion port 302, the thickness of the vertical air conditioner indoor unit 100 can be reduced as much as possible, which is conducive to the miniaturization design of the vertical air conditioner indoor unit 100, thereby improving the practicability of the vertical air conditioner indoor unit 100.

[0050] In some specific embodiments, referring to Figure 10 The minimum distance between the one end of the insertion port 302 adjacent to the fresh air inlet 102 and the fresh air volute 201 in the thickness direction of the machine shell 10 is L, and 5mm≤L.

[0051] That is, the minimum distance between the front surface of the fresh air volute 201 and the front end of the insertion port 302 in the thickness direction of the machine shell 10 cannot be too small. If the minimum distance between the front surface of the fresh air volute 201 and the front end of the insertion port 302 is too small, when the filtering device 40 is installed, the filtering device 40 will interfere with the fresh air volute 201 after being inserted into the installation cavity 301 of the fixing part 30 through the insertion port 302, which leads to that the filtering device 40 is not smoothly installed, and the filtering device 40 is deformed. Therefore, the minimum distance between the front surface of the fresh air volute 201 and the front end of the insertion port 302 in the thickness direction of the machine shell 10 cannot be less than 5mm.

[0052] Preferably, the minimum distance L between the end of the insertion port 302 adjacent to the fresh air inlet 102 and the front surface of the fresh air volute 201 in the thickness direction of the casing 10 is not less than 10 mm. In this way, the minimum distance between the front surface of the fresh air volute 201 and the front end of the insertion port 302 can be prevented from being too small, and the filter device 40 can be prevented from interfering with the fresh air volute 201 during disassembly, so that the filter device 40 can be smoothly disassembled, the deformation of the filter device 40 during disassembly is reduced, the damage rate of the filter device 40 is reduced, and the arm of a child can be prevented from entering the fixing member 30 through the insertion port 302.

[0053] In some embodiments, the minimum distance L between the end of the insertion port 302 adjacent to the fresh air inlet 102 and the front surface of the fresh air volute 201 in the thickness direction of the casing 10 is L≤12 mm.

[0054] That is, the minimum distance between the front surface of the fresh air volute 201 and the front end of the insertion port 302 in the thickness direction of the casing 10 cannot be too large. If the minimum distance between the front surface of the fresh air volute 201 and the front end of the insertion port 302 is too large, the arm of a child can easily touch the fresh air volute 201 or the fresh air fan 202 through the above gap, and a dangerous situation can occur. Therefore, the minimum distance between the front surface of the fresh air volute 201 and the front end of the insertion port 302 in the thickness direction of the casing 10 cannot be greater than 10 mm.

[0055] Therefore, by controlling the minimum distance between the front surface of the fresh air volute 201 and the front end of the insertion port 302 to be between 5 mm and 12 mm, the filter device 40 can be smoothly disassembled, and the arm of a child can be prevented from entering the mounting cavity 301 of the fixing member 30 as a second protection, thereby further improving the use safety of the indoor unit 100 of the vertical air conditioner.

[0056] Further preferably, the minimum distance between the front surface of the fresh air volute 201 and the front end of the insertion port 302 in the thickness direction of the casing 10 can be set to 11.5 mm. In this way, the filter device 40 can be smoothly installed and disassembled, and the arm of a child can be further prevented from entering the fixing member 30 through the insertion port 302.

[0057] According to some embodiments of the present application, the fresh air volute 201 includes a front volute 2011, and the front volute 2011 is arranged on the side of the fixing member 30 away from the fresh air inlet 102. Part of the front volute 2011 protrudes in the direction towards the fixing member 30 to form a first protruding portion 2012. The front volute 2011 can protect the front part of the fresh air fan 202, and can separate the front surface of the fresh air fan 202 from the filter device 40, so that the fresh air fan 202 is not directly exposed after the filter device 40 is removed, and a safety problem can be avoided.

[0058] The fresh air volute 201 comprises a rear volute 2013 arranged on the side of the front volute 2011 away from the fixing member 30, and part of the rear volute 2013 protrudes in a direction away from the front volute 2011 to form a second protruding portion 2014. The second protruding portion 2014 and the first protruding portion 2012 jointly define a receiving cavity 2015 in which the fresh air fan 202 is arranged. The rear volute 2013 can protect the rear of the fresh air fan 202, and separate the fresh air fan 202 from other components in the casing 10, while also playing a flow guiding role to enable air to flow smoothly to the filtering device 40.

[0059] The fresh air volute 201 comprises a baffle 203 arranged on the side of the front volute 2011 adjacent to the insertion opening 302. The baffle 203 can extend in the height direction of the casing 10, and the length of the baffle 203 in the height direction of the casing 10 is substantially equal to the length of the insertion opening 302. The insertion opening 302 and the first protruding portion 2012 are separated by the baffle 203, which plays a blocking role and further prevents the arms of children from accidentally touching the fresh air fan 202.

[0060] Specifically, as shown in Figures 1-10 , the fresh air volute 201 comprises the front volute 2011, the rear volute 2013, and the baffle 203. The first protruding portion 2012 is located in the lower half of the front volute 2011, the second protruding portion 2014 is located in the lower half of the rear volute 2013, and the fresh air fan 202 is arranged between the first protruding portion 2012 and the second protruding portion 2014. The upper end of the front volute 2011 and the upper end of the rear volute 2013 define an air outlet. Outdoor air can enter the fresh air volute 201 through the fresh air inlet, flow to the filtering device 40 under the drive of the fresh air fan 202 for filtering, and finally flow to the indoor through the air outlet and the fresh air outlet.

[0061] As shown in Figure 8 and Figure 10 , the width of the insertion opening 302 in the thickness direction of the casing 10 is greater than the width of the baffle 203. In this way, a gap is ensured between the front surface of the baffle 203 and the front end of the insertion opening 302, so that the filtering device 40 can be installed in the fixing member 30 through the gap.

[0062] In some embodiments, referring to Figure 10 , the maximum distance between the baffle 203 and the insertion opening 302 in the width direction of the casing 10 is D, and 40mm≤D.

[0063] That is to say, the maximum distance between the side surface of the baffle 203 and the front end of the insertion port 302 in the width direction of the casing 10 cannot be too small. If the maximum distance between the side surface of the baffle 203 and the front end of the insertion port 302 is too small, the fresh air volute 201 and even the fresh air fan 202 can be seen after the filter device 40 is disassembled, which affects the aesthetics and reduces the assembly space, which is not conducive to the installation of the filter device 40. Therefore, the maximum distance between the baffle 203 and the insertion port 302 in the width direction of the casing 10 cannot be less than 40 mm.

[0064] Preferably, the maximum distance D between the baffle 203 and the insertion port 302 in the width direction of the casing 10 is not less than 45 mm. In this way, the maximum distance between the side surface of the baffle 203 and the front end of the insertion port 302 can be avoided to be too small, which can ensure the aesthetics and make the filter device 40 be smoothly installed and disassembled.

[0065] In some specific embodiments, the maximum distance between the baffle 203 and the insertion port 302 in the width direction of the casing 10 is D, and D≤50 mm.

[0066] That is to say, the maximum distance between the side surface of the baffle 203 and the front end of the insertion port 302 in the width direction of the casing 10 cannot be too large. If the maximum distance between the side surface of the baffle 203 and the front end of the insertion port 302 is too large, the space utilization rate is reduced, the size of the part of the filter device 40 located between the baffle 203 and the insertion port 302 is relatively increased, the aesthetics is affected, and the installation path is also lengthened, which increases the cost.

[0067] Preferably, the maximum distance D between the baffle 203 and the insertion port 302 in the width direction of the casing 10 is not greater than 48 mm. In this way, the maximum distance between the side surface of the baffle 203 and the front end of the insertion port 302 can be avoided to be too large, the space utilization rate can be improved, the size of the part of the filter device 40 located between the baffle 203 and the insertion port 302 can be reduced, and the cost can be reduced.

[0068] Further preferably, the maximum distance between the side surface of the baffle 203 and the front end of the insertion port 302 can be set to 46.5 mm. In this way, the filter device 40 can be smoothly disassembled, and the child's arm can be prevented from contacting the fresh air fan 202, which further ensures the use safety of the indoor unit 100.

[0069] According to some specific embodiments of the present application, the fixing member 30 includes two first side plates 304, and the two first side plates 304 are spaced apart along the height direction of the casing 10, and each first side plate 304 extends along the width direction of the casing 10. The fixing member 30 can be fixed in the casing 10 through the two first side plates 304, so that the fixing member 30 is prevented from shaking compared with the casing 10.

[0070] The fixing member 30 includes two second side panels 305 spaced apart along the width of the housing 10. Each second side panel 305 is connected at both ends to the two first side panels 304. An insertion opening 302 is formed in one of the two second side panels 305. The two second side panels 305 effectively support the two first side panels 304, ensuring the structural strength and stability of the fixing member 30.

[0071] like Figure 4 、 Figure 5 and Figure 11 As shown, the fixing member 30 includes two first side panels 304 and two second side panels 305, so that the fixing member 30 has a rectangular frame structure, the two first side panels 304 are respectively located on the upper and lower sides of the fresh air fan 202, and the two second side panels 305 are respectively located on the left and right sides of the fresh air fan 202. At this time, the two first side panels 304 and the two second side panels 305 jointly define the vent 303, and the area of ​​the vent 303 is larger than the cross-sectional area of ​​the fresh air fan 202, so that the air flowing in from the fresh air inlet 102 can flow to the fresh air volute 201 under the guiding action of the side panels (i.e. the above-mentioned first side panels 304 and the second side panels 305), ensuring that the air filtered by the filter device 40 can all flow into the fresh air volute 201, ensuring that the vertical air conditioner indoor unit 100 has a good fresh air function and can better adjust the quality of the indoor air.

[0072] According to some specific embodiments of the present invention, the filter device 40 includes a filter screen 401 and a handle 402, which are connected to each other. The filter screen 401 is located in the installation cavity 301 and opposite the ventilation opening 303. The handle 402 is located at the insertion opening 302. At least one slot is formed in one of the handle 402 and the fixing member 30. At least one buckle 306 is provided on the other of the handle 402 and the fixing member 30. The buckle 306 engages with the slot. Alternatively, the handle 402 may have at least one slot and the fixing member 30 may have at least one buckle 306; or the fixing member 30 may have at least one slot and the handle 402 may have at least one buckle 306.

[0073] For example, in Figure 11 In the example shown, three clips 306 are provided on the second side panel 305 on the left side. The three clips 306 are evenly spaced along the height of the housing 10. Accordingly, three slots are formed on the handle 402. The clips 306 cooperate with the slots to achieve a detachable connection between the filter device 40 and the fixing member 30. Furthermore, securing the handle 402 to the insertion port 302 facilitates the user's installation and removal of the filter device 40.

[0074] Figure 11Three clips 306 are shown for illustrative purposes, but after reading the technical solution of this application, ordinary technicians can obviously understand that the solution can be applied to technical solutions with other numbers of clips 306, which also falls within the scope of protection of the present utility model.

[0075] like Figures 1-11 As shown, the vertical air conditioner indoor unit 100 according to an embodiment of the present invention may include a casing 10, on which a heat exchange air inlet 101, a heat exchange air outlet, a fresh air inlet 102 and a fresh air outlet are formed, and the casing 10 can form a accommodating space to facilitate fixing the components of the vertical air conditioner indoor unit 100 and to protect the components of the vertical air conditioner indoor unit 100.

[0076] The vertical air conditioner indoor unit 100 may include a heat exchanger disposed within the housing 10. The heat exchanger may be positioned adjacent to the heat exchange air outlet. When the vertical air conditioner indoor unit 100 is in operation, indoor air may flow into the housing 10 through the heat exchange air inlet 101 of the housing 10, exchange heat with the heat exchanger to form a heat exchange airflow, and then be discharged into the room through the heat exchange air outlet. The heat exchanger may then be used to heat or cool the airflow, thereby achieving heating or cooling of the indoor air.

[0077] The vertical air conditioner indoor unit 100 may include an air duct member disposed within the housing 10 and adjacent to the heat exchange inlet. The air duct member guides the air flowing into the housing 10 to ensure a more uniform and orderly flow. Furthermore, the air flowing into the housing 10 is ensured to flow through the heat exchanger and exchange heat with the heat exchanger, thereby improving heat exchange efficiency.

[0078] The vertical air conditioner indoor unit 100 may include a heat exchange fan, which is disposed within the housing 10. Specifically, the heat exchange fan may be disposed within the air duct. The heat exchange fan rotates to allow air to enter the housing 10 through the heat exchange air inlet 101. The air entering the housing 10 flows toward the heat exchanger, and after exchanging heat with the heat exchanger, it enters the room through the heat exchange air outlet. The heat exchange fan drives air flow, thereby accelerating the flow rate of the airflow, thereby improving the heat exchange efficiency between the air and the heat exchanger, thereby enhancing the cooling or heating efficiency of the vertical air conditioner indoor unit 100.

[0079] The vertical air conditioner indoor unit 100 may include a fresh air module 20, which is arranged in the housing 10. The fresh air module 20 includes a fresh air volute 201 and a fresh air fan 202. The fresh air fan 202 is arranged in the fresh air volute 201 and is located below the heat exchange fan. The rotation of the fresh air fan 202 allows air to enter the fresh air volute 201 from the fresh air inlet 102, and then enter the room through the fresh air volute 201 and the fresh air outlet. The fresh air fan 202 can be arranged adjacent to the fresh air inlet 102, and the fresh air fan 202 and the heat exchange fan are arranged along the height direction of the housing 10 (for example,Figure 1 The new air volute 201 is arranged in the up-down direction of the air duct, and has the same effect as the air duct, and can guide the air flowing into the new air volute 201, so that the air flow can flow more uniformly and orderly. The new air fan 202 can drive outdoor air to flow into the new air volute 201 through the new air inlet 102, and then flow into the indoor through the new air outlet under the guidance of the new air volute 201, so as to adjust the air quality in the indoor.

[0080] The indoor unit 100 of the vertical air conditioner can include a fixing member 30 arranged on one side of the new air volute 201 adjacent to the new air inlet 102. The fixing member 30 has a mounting cavity 301, an insertion opening 302 and a ventilation opening 303 in communication with the mounting cavity 301, and the ventilation opening 303 is opposite to the new air inlet 102. The filter device 40 can be fixed between the new air inlet 102 and the ventilation opening 303 through the fixing member 30, so as to avoid shaking of the filter device 40 relative to the cabinet 10 due to air flow.

[0081] The indoor unit 100 of the vertical air conditioner can include a filter device 40, which is inserted into the mounting cavity 301 through the insertion opening 302, and part of the filter device 40 is opposite to the ventilation opening 303. The filter device 40 can filter and purify the air, so as to improve the cleanliness of the air flowing into the new air volute 201 through the new air inlet 102.

[0082] Specifically, referring to Figures 1-10 The heat exchange inlet 101 is formed in the upper half of the cabinet 10, the new air inlet 102 is formed in the lower half of the cabinet 10, and the heat exchanger and the heat exchange fan are arranged in the upper half of the receiving space of the cabinet 10, so as to ensure that the cold air can blow from top to bottom to the indoor when cooling, and to ensure the user experience. The new air module 20 is arranged in the lower half of the receiving space of the cabinet 10, and the new air volute 201 is formed with air outlets opposite to the new air fan 202 and the new air inlet 102. The fixing member 30 is arranged between the new air volute 201 and the new air inlet 102, and the filter device 40 is fixed to the fixing member 30 and located between the ventilation opening 303 and the new air inlet 102.

[0083] When the new air module 20 works, the new air fan 202 rotates to drive outdoor air to flow into the new air volute 201 through the new air inlet 02, the filter device 40, the ventilation opening 303 and the air outlet. The filter device 40 filters and purifies the air flowing therethrough, removes the pollutants in the air, and the clean air filtered by the filter device 40 flows to the indoor through the new air outlet, so as to adjust the air quality in the indoor, and improve the user experience and comfort.

[0084] The fixing member 30 is arranged in the width direction of the cabinet 10 (for example, Figure 1An insertion port 302 is formed on one side of the fresh air volute 201 in the thickness direction of the casing 10 (for example, Figure 1 The front-to-back direction in the housing 10) is opposite to the insertion port 302. For example, the insertion port 302 can extend along the height direction of the housing 10, and part of the fresh air volute 201 can be seen at the insertion port 302. During installation, one end of the filter device 40 can be inserted into the fixing member 30 through the insertion port 302 from the left or right side of the housing 10, and then the filter device 40 can be pushed to move the filter device 40 along the front surface of the fresh air volute 201 to fix the filter device 40 in the installation cavity 301, and the part of the filter device 40 located in the installation cavity 301 can completely cover the fresh air inlet 102, ensuring that all air can be filtered by the filter device 40 before flowing into the fresh air volute 201, and finally flow out through the fresh air outlet.

[0085] Reference Figure 7 and Figure 8 , the insertion port 302 is in the thickness direction of the housing 10 (for example, Figure 1 The minimum distance between the two sides (in the front-to-back direction) is W, and W satisfies: 40mm≤W.

[0086] In other words, the width of the insertion opening 302 in the thickness direction of the housing 10 cannot be too small. If the width of the insertion opening 302 is too small, it will affect the installation and removal of the filter device 40, making it easy for the filter device 40 to interfere with the fixing member 30 during assembly, causing the filter device 40 to deform, seriously affecting the filtering effect of the filter device 40. Therefore, the width of the insertion opening 302 in the thickness direction of the housing 10 cannot be less than 40 mm. To avoid the width of the insertion opening 302 in the thickness direction of the housing 10 being too small, the filter device 40 can be smoothly installed and removed from the fixing member 30 through the insertion opening 302, and to avoid interference between the filter device 40 and the fixing member 30 during assembly and removal.

[0087] Reference Figure 7 and Figure 8 The minimum distance between the two sides of the insertion port 302 in the thickness direction of the housing 10 is W, and W satisfies: W≤45mm.

[0088] That is, the width of the insertion opening 302 in the thickness direction of the casing 10 cannot be too large. If the width of the insertion opening 302 is too large, on the one hand, after the filter device 40 is removed, it will affect the aesthetics of the vertical air conditioner indoor unit 100; on the other hand, a child's arm can easily reach into the installation cavity 301 of the fixing member 30 through the insertion opening 302, posing a safety hazard of accidentally touching the fresh air blower 202 when the fresh air blower 202 is operating. Therefore, the width of the insertion opening 302 in the thickness direction of the casing 10 cannot be greater than 45 mm. This can prevent the insertion opening 302 from being too large in the thickness direction of the casing 10, thereby ensuring the aesthetics of the exterior surface of the vertical air conditioner indoor unit 100 and further limiting the possibility of a child's arm reaching into the fixing member 30 through the insertion opening 302, thereby further reducing the risk of the child's arm being injured by the fresh air blower 202.

[0089] Preferably, the width of the insertion opening 302 in the thickness direction of the housing 10 can be controlled to 44 mm. This arrangement ensures that the filter device 40 can be smoothly installed and removed while limiting the possibility of a child's arm extending into the fixing member 30 through the insertion opening 302.

[0090] According to the embodiment of the vertical air conditioner indoor unit 100 of the present invention, by locating the fixing member 30 for fixing the filter device 40 between the fresh air volute 201 and the fresh air outlet 102, the filter device 40 can be inserted into the fixing member 30 through the insertion opening 302 of the fixing member 30, and the minimum width of the insertion opening 302 in the thickness direction of the housing 10 is controlled to be between 40 mm and 45 mm. In this way, while ensuring smooth installation and removal of the filter device 40, it is possible to restrict a child's arm from extending into the fixing member 30 through the insertion opening 302, thereby reducing the risk of injury to a child's arm from the fresh air blower 202 and ensuring that the vertical air conditioner indoor unit 100 has a good fresh air function.

[0091] Other structures and operations of the vertical air-conditioning indoor unit 100 according to the embodiment of the present invention are well known to those skilled in the art and will not be described in detail here.

[0092] The vertical air conditioner 100 of the present invention performs a refrigeration cycle by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the conditioned and heat-exchanged air.

[0093] The compressor compresses high-temperature, high-pressure refrigerant gas and discharges the compressed gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, releasing heat into the surrounding environment through the condensation process.

[0094] The expansion valve expands the high-temperature and high-pressure liquid-phase refrigerant condensed in the condenser into low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a refrigeration effect by exchanging heat with a material to be cooled using latent heat of evaporation of the refrigerant. Throughout the cycle, the ducted-type air conditioner 1 can adjust the temperature and humidity of the indoor space.

[0095] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0096] In the description of the present application, it should be understood that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0097] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" 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 application. In the present application, the exemplary description of the above terms does not necessarily refer to the same embodiment or example.

[0098] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A vertical air conditioner indoor unit, comprising: A housing having a heat exchange inlet, a heat exchange outlet, a fresh air inlet, and a fresh air outlet; a heat exchanger, the heat exchanger being disposed in the casing; a heat exchange fan disposed in the housing, wherein the heat exchange fan rotates to allow air to enter the housing from the heat exchange air inlet, and to allow the air entering the housing to flow toward the heat exchanger, and then enter the room through the heat exchange air outlet after exchanging heat with the heat exchanger; A fresh air module is provided in the housing and includes: Fresh air volute; A fresh air fan is provided in the fresh air volute, and is located below the heat exchange fan. The rotation of the fresh air fan allows air to enter the fresh air volute from the fresh air inlet, and then enter the room through the fresh air volute and the fresh air outlet; It is characterized in that The vertical air conditioner indoor unit also includes: a fixing member, the fixing member being provided on a side of the fresh air volute adjacent to the fresh air inlet, the fixing member having a mounting cavity, an insertion port communicating with the mounting cavity, and a vent, the vent being opposite to the fresh air inlet; a filter device, the filter device being inserted into the installation cavity through the insertion port, with a portion of the filter device facing the vent; The insertion port is formed on one side of the fixing member in the width direction of the housing, and a portion of the fresh air volute is opposite to the insertion port in the thickness direction of the housing; The side of the insertion port adjacent to the fresh air inlet in the thickness direction of the casing is the first side, and the side of the insertion port away from the fresh air inlet in the thickness direction of the casing is the second side. The minimum distance between the first side and the second side is W, wherein W satisfies: 40mm≤W≤45mm.

2. The vertical air conditioner indoor unit according to claim 1, characterized in that: In the thickness direction of the casing, the minimum distance between the end of the insertion port adjacent to the fresh air inlet and the fresh air volute is L, wherein L and W satisfy: L<W.

3. The vertical air conditioner indoor unit according to claim 2, characterized in that: The L satisfies: 5mm≤L≤12mm.

4. The vertical air conditioner indoor unit according to claim 3, characterized in that: The L further satisfies: 10mm≤L≤12mm.

5. The vertical air conditioner indoor unit according to any one of claims 1 to 4, characterized in that: The fresh air volute comprises: a front volute, the front volute being arranged on a side of the fixing member away from the fresh air inlet, and a portion of the front volute protruding toward the fixing member to form a first protrusion; a rear volute, the rear volute being arranged on a side of the front volute away from the fixing member, a portion of the rear volute protruding in a direction away from the front volute to form a second protrusion, the second protrusion and the first protrusion jointly defining an accommodating cavity, the fresh air blower being arranged in the accommodating cavity; A baffle is provided on a side of the front volute adjacent to the insertion port, and a width of the insertion port along a thickness direction of the casing is greater than a width of the baffle.

6. The vertical air conditioner indoor unit according to claim 5, characterized in that: The maximum distance between the baffle and the insertion port in the width direction of the housing is D, wherein D satisfies: 40 mm ≤ D ≤ 50 mm.

7. The vertical air conditioner indoor unit according to claim 6, characterized in that: The D further satisfies: 45mm≤D≤48mm.

8. The vertical air conditioner indoor unit according to claim 1, characterized in that: The fixing member includes: two first side panels, the two first side panels being spaced apart along a height direction of the housing, and each first side panel extending along a width direction of the housing; Two second side panels are spaced apart along the width direction of the housing, two ends of each second side panel are respectively connected to the two first side panels, and the insertion port is formed on one of the two second side panels.

9. The vertical air conditioner indoor unit according to any one of claims 1 to 4, characterized in that: The filter device includes a filter screen and a handle connected to each other, the filter screen is located in the installation cavity and opposite to the vent, and the handle is located at the insertion port; At least one of the handle and the fixing member is formed with at least one slot, and the other of the handle and the fixing member is provided with at least one buckle, and the buckle is fitted in the slot.

10. A vertical air conditioner indoor unit, comprising: A housing having a heat exchange inlet, a heat exchange outlet, a fresh air inlet, and a fresh air outlet; a heat exchanger, the heat exchanger being disposed in the casing; a heat exchange fan disposed in the housing, wherein the heat exchange fan rotates to allow air to enter the housing from the heat exchange air inlet, and to allow the air entering the housing to flow toward the heat exchanger, and then enter the room through the heat exchange air outlet after exchanging heat with the heat exchanger; A fresh air module is provided in the housing and includes: Fresh air volute; A fresh air fan is provided in the fresh air volute, and is located below the heat exchange fan. The rotation of the fresh air fan allows air to enter the fresh air volute from the fresh air inlet, and then enter the room through the fresh air volute and the fresh air outlet; It is characterized in that The vertical air conditioner indoor unit also includes: a fixing member, the fixing member being provided on a side of the fresh air volute adjacent to the fresh air inlet, the fixing member having a mounting cavity, an insertion port communicating with the mounting cavity, and a vent, the vent being opposite to the fresh air inlet; a filter device, the filter device being inserted into the installation cavity through the insertion port, with a portion of the filter device facing the vent; The fixing member is formed with the insertion port on one side in the width direction of the housing, and a portion of the fresh air volute is opposite to the insertion port in the thickness direction of the housing; A minimum distance between two sides of the insertion port in the thickness direction of the housing is W, wherein W satisfies: 40 mm ≤ W ≤ 45 mm.

Images