Filter screen assembly for duct type air conditioner and duct type air conditioner

Abstract

The utility model relates to the technical field of air conditioners, and discloses a filter screen assembly for a duct type air conditioner and the duct type air conditioner. The filter screen assembly for the duct type air conditioner comprises a fixing flange suitable for being located at an air return opening of the duct type air conditioner, the fixing flange is annular and defines a mounting space, and at least one side of the fixing flange is provided with an insertion opening communicated with the mounting space; the filter screen can be inserted into or pulled out of the mounting space through the insertion opening, and when the filter screen is inserted into the mounting space, the filter screen covers the air return opening; wherein the filter screen comprises a pushing part and a butt joint part which are sequentially arranged in the insertion direction, one of the pushing part and the side wall of the insertion opening is provided with a buckle, the other one of the pushing part and the side wall of the insertion opening is provided with a clamping groove, and when the filter screen is inserted into the installation space and the butt joint part abuts against the fixing flange, the buckle is connected with the clamping groove so as to limit the filter screen to be separated from the fixing flange. In addition, screws do not need to be additionally arranged for connection, the number of parts is reduced, installation convenience of the filter screen is improved, and cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, for example, to a filter assembly for a duct air conditioner and a duct air conditioner. Background Art

[0002] At present, duct air conditioners are generally embedded in the ceiling. The air outlet and return air outlet of the duct air conditioner can adjust the indoor temperature by discharging and returning air to the room. The return air outlet of the duct air conditioner is generally equipped with a filter, which can prevent dust or impurities from entering the duct air conditioner, avoiding the fan and heat exchanger from being dirty and blocked, and breeding bacteria.

[0003] A duct machine filter fixing flange is disclosed in the related art. The duct machine filter fixing flange includes an upper flange, a lower flange and two side flanges. The upper flange, the lower flange and the two side flanges are connected to form a fixing flange. The fixing flange is used to be fixed at the air outlet of the return air box of the duct machine. The length and width of the inner frame of the fixing flange match the length and width of the outer frame of the filter. The inner wall of the upper flange is provided with a limiting structure. The inner walls of the two side flanges are provided with limiting guide rail structures. There is a gap between the lower flange and the box body to allow the filter to pass through. With the end face of the air outlet as the horizontal reference plane, the filter can slide horizontally along the limiting guide rail structure after entering the gap until the frame at one end of the filter sliding direction slides into the limiting structure. The end of the filter opposite to the sliding direction is fixedly connected to the lower flange through a connecting piece. The connecting piece includes a connecting piece and a first screw.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] In the related art, after the filter is slid into place, additional screws are required for connection and limiting, and the filter needs to be held by hand for connection operations, which increases the operation steps and parts and the cost.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The disclosed embodiments provide a filter assembly for a duct air conditioner and a duct air conditioner to improve the convenience of filter installation, reduce installation parts, and reduce costs.

[0009] The disclosed embodiment provides a filter assembly for an air duct machine, the filter assembly for the air duct machine comprising: a fixed flange, suitable for being located at the return air outlet of the air duct machine, the fixed flange being annular and defining an installation space, at least one side of the fixed flange being provided with a socket connected to the installation space; a filter, which can be inserted into or withdrawn from the installation space through the socket, and when the filter is inserted into the installation space, the filter is suitable for covering the return air outlet; wherein the filter comprises a pushing portion and a docking portion sequentially arranged along an insertion direction, one of the side walls of the pushing portion and the socket being provided with a buckle, and the other of the side walls of the pushing portion and the socket being provided with a slot, and when the filter is inserted into the installation space and the docking portion abuts against the fixed flange, the buckle is connected to the slot to limit the filter from being separated from the fixed flange.

[0010] Optionally, the buckle includes: a snap-fitting protrusion, which is snap-fitted with the slot when the buckle is connected to the slot; an operating part, which is connected to the snap-fitting protrusion, and after the snap-fitting protrusion is snap-fitted with the slot, the operating part protrudes out of the outside of the socket, and when the operating part is subjected to force, it can drive the snap-fitting protrusion to move in the direction of leaving the slot, so as to separate the snap-fitting protrusion from the slot.

[0011] Optionally, when the pushing portion is provided with a buckle and the side wall of the socket is provided with a slot, the operating portion includes: a first kneading plate; a second kneading plate, which is arranged opposite to the first kneading plate, and the snap-fitting protrusion is arranged on the side of the first kneading plate away from the second kneading plate and protrudes from the first kneading plate, and / or the snap-fitting protrusion is arranged on the side of the second kneading plate away from the first kneading plate and protrudes from the second kneading plate.

[0012] Optionally, the filter net includes: a fixed frame in a ring shape; reinforcing ribs located in the fixed frame and extending along the width and / or length direction of the fixed frame to divide the fixed frame into multiple filter spaces; a filter medium covering the filter space; wherein, when the pushing portion is provided with a buckle, the buckle and the reinforcing rib are spaced apart; and / or, the fixed frame is made of plastic.

[0013] Optionally, the fixed flange includes an insertion end and an abutment end arranged in sequence along the filter insertion direction, and the insertion end is provided with a socket. The filter assembly for the duct machine also includes: a folded edge, which is arranged on the side of the abutment end facing the insertion end. After the filter is inserted into the installation space, the abutment part abuts against the abutment end, and the folded edge is located on one side or both sides of the abutment part, and along the direction from the abutment end to the insertion end, the folded edge is inclined in the direction away from the abutment part.

[0014] Optionally, the docking portion of the filter is configured with a chamfer, which matches the folded edge. When the filter is inserted into the fixed flange, the chamfer can cooperate with the folded edge for guidance; and / or, there are multiple folded edges, and the multiple folded edges include: a first folded edge, located on one side of the docking portion, and along the direction from the abutting end to the insertion end, the first folded edge is inclined toward a first direction away from the side of the docking portion; a second folded edge, located on the other side of the docking portion, and along the direction from the abutting end to the insertion end, the second folded edge is inclined toward a second direction away from the other side of the docking portion, and the second direction is opposite to the first direction; wherein the first folded edge and the second folded edge are alternately arranged in sequence along the length direction of the abutting end.

[0015] Optionally, the fixed flange includes: an upper flange; a lower flange, which is arranged opposite to the upper flange and is provided with a socket; a left flange, which is connected between the left end of the upper flange and the left end of the lower flange; and a right flange, which is connected between the right end of the upper flange and the right end of the lower flange; wherein both the left flange and the right flange are defined with a sliding groove, and the sliding groove extends along the length direction of the left flange and the right flange, and the filter net can slide along the sliding groove to be inserted into or pulled out of the installation space.

[0016] Optionally, the filter screen includes a sliding portion, which is connected between the insertion portion and the docking portion, and there are two sliding portions, which are respectively located at both ends of the length direction of the filter screen, and when the filter screen is inserted into the installation space, the sliding portion slides in the sliding groove; wherein, the sliding portion is constructed with a protrusion, and when the sliding portion is located in the sliding groove, the protrusion abuts against the groove wall of the sliding groove; and / or, the fixed flange includes: a first flange, one end or both ends of the first flange are provided with a flange; a second flange, which is connected to one end or both ends of the first flange, and when the first flange is connected to the second flange, the flange is abutted and connected to the second flange; wherein, the first flange includes any one of an upper flange, a lower flange, a left flange and a right flange, and the second flange includes one or two adjacent to any one of the upper flange, the lower flange, the left flange and the right flange.

[0017] Optionally, the pushing portion also includes a baffle, and when the filter is inserted into the installation space and the buckle is engaged with the slot, the baffle covers the side of the socket away from the installation space; and / or, there are multiple buckles, and the multiple buckles are arranged in sequence along the length direction of the pushing portion, and the number of slots is the same as the number of buckles and corresponds one to one.

[0018] The disclosed embodiments further provide an air duct machine, comprising: a housing having a return air outlet; a filter assembly for the air duct machine as described in any one of the above embodiments, wherein a fixing flange is disposed at the return air outlet.

[0019] The filter assembly for a duct air conditioner and the duct air conditioner provided in the embodiments of the present disclosure can achieve the following technical effects:

[0020] The filter assembly for the duct machine provided by the embodiment of the present disclosure has a socket on at least one side of the fixed flange, and the filter can be inserted into or pulled out of the fixed flange through the socket, so that when the filter is inserted into the installation space, the filter covers the return air outlet, so that the filter can filter the airflow of the return air outlet and protect the internal components of the duct machine. After the filter is inserted into the installation space, the push part and the socket are connected by a buckle and a slot, which can limit the filter from being separated from the fixed flange, and there is no need to set up additional screws for connection, and there is no need to hold the filter for screw connection, which reduces the number of parts, improves the convenience of filter installation, and reduces costs. Moreover, when the filter needs to be disassembled, there is no need to disassemble the fixed flange, and the filter can be directly pulled out, which improves the convenience of filter disassembly.

[0021] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0023] Figure 1 is a structural schematic diagram of a duct machine provided by an embodiment of the present disclosure;

[0024] Figure 2 It is a structural schematic diagram of a filter assembly for a duct air conditioner provided by an embodiment of the present disclosure;

[0025] Figure 3 It is a schematic diagram of an exploded structure of a filter assembly for a duct machine provided by an embodiment of the present disclosure;

[0026] Figure 4 is a structural schematic diagram of a fixed flange provided in an embodiment of the present disclosure;

[0027] Figure 5 is a schematic diagram of the structure of a filter provided by an embodiment of the present disclosure;

[0028] Figure 6 It is a schematic cross-sectional structure diagram of a filter assembly for a duct air conditioner provided by an embodiment of the present disclosure;

[0029] Figure 7 is a structural schematic diagram of a right flange provided by an embodiment of the present disclosure;

[0030] Figure 8 is another cross-sectional structural schematic diagram of a filter assembly for a duct air conditioner provided by an embodiment of the present disclosure;

[0031] Fig. 9 is a schematic diagram of a cross-sectional structure of a filter provided in an embodiment of the present disclosure;

[0032] Fig.10 It is a schematic diagram of the partial structure of a fixing flange provided in an embodiment of the present disclosure.

[0033] Reference numerals:

[0034] 10. Fixed flange; 101. Upper flange; 102. Lower flange; 103. Left flange; 104. Right flange; 105. Flanged edge; 106. Installation space; 107. Socket; 108. Slot; 109. Sliding slot; 110. Insertion end; 111. Abutment end; 112. Folded edge; 1121. First folded edge; 1122. Second folded edge; 20. Filter; 201. Fixed frame; 202. Reinforcement rib; 203. Pushing part; 204. Docking part; 205. Buckle; 2051. Snap-on protrusion; 2052. Operating part; 2053. First kneading plate; 2054. Second kneading plate; 206. Sliding part; 207. Protrusion; 208. Chamfer; 209. Baffle; 30. Shell; 301. Return air outlet. DETAILED DESCRIPTION

[0035] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0036] The terms "first", "second", etc. in the specification and claims of the disclosed embodiments and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate to describe the disclosed embodiments here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0037] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0038] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0039] Unless otherwise stated, the term "plurality" means two or more.

[0040] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0041] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0042] For ease of description, the front and back, up and down, and left and right directions of this application are as follows: Figure 1 As shown. The length direction of the fixed flange and the filter screen refers to the left-right direction of the fixed flange and the filter screen, and the width direction of the fixed flange and the filter screen refers to the up-down direction of the fixed flange and the filter screen. The length direction of the upper flange and the lower flange refers to the left-right direction, and the length direction of the left flange and the right flange refers to the up-down direction.

[0043] like Figure 1 As shown, an embodiment of the present disclosure provides an air duct machine, which includes a shell 30. The shell 30 is provided with a return air port 301 and an air outlet. A heat exchanger and a fan are also provided inside the air duct machine. The fan can drive the airflow outside the shell 30 to flow into the air duct machine from the return air port 301, flow through the heat exchanger, and then flow out from the air outlet, thereby realizing temperature regulation of the indoor airflow.

[0044] Combination Figures 2 to 10As shown, the embodiment of the present disclosure provides a filter assembly for a duct machine, the filter assembly for the duct machine includes a fixed flange 10 and a filter 20, the fixed flange 10 is annular, and the interior of the fixed flange 10 defines an installation space 106, the fixed flange 10 is suitable for being located at the return air port 301 of the duct machine, the installation space 106 corresponds to and is connected to the return air port 301, at least one side of the fixed flange 10 is provided with a socket 107 connected to the installation space 106; the filter 20 can be inserted into or removed from the installation space 106 through the socket 107, and the filter 20 can be inserted into or removed from the installation space 106 through the socket 107. 0 is inserted into the installation space 106, the filter 20 is suitable for covering the return air outlet 301; wherein, the filter 20 includes a pushing portion 203 and a docking portion 204 sequentially arranged along the insertion direction, one of the side walls of the pushing portion 203 and the socket 107 is provided with a buckle 205, and the other of the side walls of the pushing portion 203 and the socket 107 is provided with a slot 108. After the filter 20 is inserted into the installation space 106, and when the docking portion 204 abuts against the fixing flange 10, the buckle 205 is connected with the slot 108 to limit the filter 20 from being separated from the fixing flange 10.

[0045] In the disclosed embodiment, a socket 107 is provided on one or more sides of the fixed flange 10, and the filter 20 can be inserted into the fixed flange 10 through the socket 107. When the filter 20 is inserted into the installation space 106, the filter 20 can cover the return air port 301, thereby realizing the installation of the filter 20, and the filter 20 can filter the airflow flowing through the return air port 301. When the filter 20 needs to be removed, there is no need to remove the fixed flange 10, and the filter 20 only needs to be pulled out from the socket 107, which improves the convenience of installation and removal of the filter 20. After the filter 20 is inserted into the installation space 106, the push part 203 of the filter 20 can be connected to the socket 107 through the buckle 205 and the slot 108, so there is no need to set screws to limit the filter 20, which not only improves the convenience of limiting the filter 20, but also reduces the number of parts and reduces the cost.

[0046] Optionally, the installation space 106 matches the return air outlet 301 , that is, the size and shape of the installation space 106 are the same as or similar to those of the return air outlet 301 , so that the ventilation volume of the return air outlet 301 can be guaranteed.

[0047] Optionally, the fixing flange 10 may be provided with a socket 107 on one side or multiple sides, and the filter 20 may be selectively inserted into the installation space 106 from different sockets 107 , thereby improving the convenience of installing the filter 20 .

[0048] Optionally, the socket 107 is located on the lower side of the fixed flange 10, so that when the duct unit is installed on the ceiling, the filter can be freely pulled out from the bottom without being blocked by walls or other components, and sufficient extraction space can be left to facilitate the extraction and insertion of the filter.

[0049] Alternatively, if Figures 4 to 6 As shown, the buckle 205 includes a snap-fitting protrusion 2051 and an operating part 2052. When the buckle 205 is connected to the slot 108, the snap-fitting protrusion 2051 is snap-fitted with the slot 108; the operating part 2052 is connected to the snap-fitting protrusion 2051. After the snap-fitting protrusion 2051 is snap-fitted with the slot 108, the operating part 2052 protrudes out of the outside of the socket 107. When the operating part 2052 is subjected to force, it can drive the snap-fitting protrusion 2051 to move in the direction of disengaging from the slot 108, so that the snap-fitting protrusion 2051 is separated from the slot 108.

[0050] In the disclosed embodiment, the clamping protrusion 2051 of the buckle 205 is used to clamp with the clamping slot 108 to achieve the connection and limit between the filter screen 20 and the socket 107, and prevent the filter screen 20 from being separated from the fixed frame 201. The buckle 205 also includes an operating part 2052, which is connected to the clamping protrusion 2051. The operating part 2052 is used to drive the clamping protrusion 2051 to move, so that the clamping protrusion 2051 can be separated from the clamping slot 108, thereby facilitating the filter screen 20 to be pulled out of the fixed flange 10.

[0051] Optionally, the operating part 2052 is made of elastic material. When force is applied to the operating part 2052, the buckle 205 is deformed so that the operating part 2052 drives the clamping protrusion 2051 to move out of the slot 108. When the operating part 2052 is released and no force is applied, the elastic member can return to its original state. When the filter screen 20 is inserted into the fixed flange 10 through the socket 107, the clamping protrusion 2051 drives the operating part 2052 to undergo elastic deformation under the pressure of the socket 107, so that the clamping protrusion 2051 can pass through the socket 107 and then be inserted into the slot 108. After the clamping protrusion 2051 is inserted into the slot 108, the operating part 2052 returns to its original state so that the clamping protrusion 2051 can be clamped in the slot 108 to prevent the clamping protrusion 2051 from being separated from the slot 108.

[0052] In some optional embodiments, the pushing portion 203 is provided with a buckle 205, the side wall of the socket 107 is provided with a slot 108, the socket 107 includes two opposite side walls, at least one side wall of the socket 107 is provided with a slot 108, and the opening of the slot 108 faces the other side wall opposite to the side wall where the slot 108 is located.

[0053] Alternatively, if Figure 5 and Figure 6As shown, the operating portion 2052 includes a first kneading plate 2053 and a second kneading plate 2054, the second kneading plate 2054 is arranged opposite to the first kneading plate 2053, the clamping protrusion 2051 is arranged on the side of the first kneading plate 2053 away from the second kneading plate 2054, and protrudes from the first kneading plate 2053, and / or, the clamping protrusion 2051 is arranged on the side of the second kneading plate 2054 away from the first kneading plate 2053, and protrudes from the second kneading plate 2054.

[0054] In the embodiment of the present disclosure, the first kneading plate 2053 and the second kneading plate 2054 are arranged relatively to each other along the width direction of the socket, so that the first kneading plate 2053 and the second kneading plate 2054 are pinched at the same time to make the first kneading plate 2053 and the second kneading plate 2054 move relative to each other. This is convenient for applying force and can also drive the clamping protrusion 2051 provided on the first kneading plate 2053 and / or the second kneading plate 2054 to move in the direction of disengaging from the clamping groove 108, so as to facilitate the movement of the buckle 205 and further facilitate the disassembly and assembly of the filter 20. The clamping protrusion 2051 protrudes from the first kneading plate 2053 and / or the second kneading plate 2054, so that when the first kneading plate 2053 and the second kneading plate 2054 move toward each other, the clamping protrusion 2051 can move in the direction of disengaging from the slot 108, and when the first kneading plate 2053 and the second kneading plate 2054 move away from each other, the clamping protrusion 2051 can be inserted into the slot 108, thereby realizing the connection between the filter screen 20 and the fixing flange 10.

[0055] Optionally, the first kneading plate 2053 and the second kneading plate 2054 are made of elastic material.

[0056] Optionally, the first kneading plate 2053 and the second kneading plate 2054 are disposed opposite to each other along the width direction of the socket 107 .

[0057] In some other optional embodiments, the push portion 203 is provided with a slot 108, and the socket 107 is provided with a buckle 205, and the buckle 205 is made of elastic material. When the filter screen 20 moves toward the installation space 106 along the socket 107, the buckle 205 is elastically deformed under the pressure of the filter screen 20 to avoid the movement of the filter screen 20. When the filter screen 20 moves to the right position, the slot 108 corresponds to the buckle 205, the buckle 205 returns to its original state, and the snap-connecting protrusion 2051 of the buckle 205 can be inserted into the slot 108, thereby realizing the connection between the buckle 205 and the slot 108. When the filter screen 20 needs to be disassembled, an external force is applied to the operating portion 2052 of the buckle 205, so that the buckle 205 is elastically deformed and separated from the slot 108, so that the slot 108 and the buckle 205 can be separated.

[0058] Alternatively, if Figure 5 and Figure 6As shown, the filter screen 20 includes a fixed frame 201, a reinforcing rib 202 and a filter medium. The fixed frame is annular. The reinforcing rib 202 is located in the fixed frame 201 and extends along the width and / or length direction of the fixed frame 201 to divide the fixed frame 201 into multiple filter spaces; the filter medium covers the filter space; wherein, when the push portion 203 is provided with a buckle 205, the buckle 205 and the reinforcing rib 202 are spaced apart.

[0059] In the disclosed embodiment, the fixing frame 201 provides support for the filter medium, and the reinforcing ribs 202 can strengthen the strength of the fixing frame 201 and also facilitate the installation of the filter medium. The buckle 205 is spaced apart from the reinforcing ribs 202, that is, the buckle 205 is not connected to the reinforcing ribs 202, which can ensure the elasticity and activity space of the buckle 205, thereby ensuring the connection and separation of the buckle 205 and the slot 108.

[0060] Optionally, the filter medium can be a metal mesh, a cloth, a microporous filter membrane or activated carbon, etc.

[0061] Alternatively, if Figure 4 and Figure 5 As shown, the fixing flange 10 includes an insertion end 110 and an abutment end 111 which are sequentially arranged along the insertion direction, and the insertion end 110 is provided with a socket 107. The filter assembly for the duct machine also includes a folded edge 112, and the folded edge 112 is arranged on one side or both sides of the abutment end 111 facing the insertion end 110. When the filter 20 is inserted into the installation space 106, the docking portion 204 abuts against the abutment end 111, and the folded edge 112 is located on one side of the docking portion 204, and along the direction from the abutment end 111 to the insertion end 110, the folded edge 112 is inclined in a direction away from the docking portion 204.

[0062] In the disclosed embodiment, when the filter screen 20 moves toward the fixed flange 10, the abutting end 111 of the fixed frame 201 is provided with a folded edge 112, and the folded edge 112 is arranged at an angle, so that the folded edge 112 can guide the docking portion 204 of the filter screen 20 to ensure that the filter screen 20 can be smoothly inserted into place and prevent the filter screen 20 from tilting. In addition, the folded edge 112 is located on one side of the filter screen 20, and the folded edge 112 can limit the filter screen 20 to prevent the filter screen 20 from moving forward and backward.

[0063] Optionally, there are multiple folded edges 112 , and the multiple folded edges 112 are sequentially spaced apart along the length direction of the abutting end 111 .

[0064] Optionally, the plurality of folded edges 112 include a first folded edge and a second folded edge, wherein the first folded edge is located at one side of the docking portion and is inclined in a first direction away from one side of the filter screen 20 along the direction from the abutting end 111 to the insertion end 110; the second folded edge is located at the other side of the docking portion and is inclined in a second direction away from the other side of the filter screen 20 along the direction from the abutting end 111 to the insertion end 110, and the first direction and the second direction are opposite. In this way, the filter screen 20 can be limited and guided from both ends of the docking portion 204 of the filter screen 20.

[0065] Optionally, the first folded edge and the second folded edge are alternately arranged in sequence along the length direction of the abutting end 111 , so as to further improve the stability of the folded edge 112 in guiding and limiting the filter screen 20 .

[0066] Alternatively, if Figure 6 As shown, the docking portion 204 of the filter screen 20 is configured with a chamfer 208 , and the chamfer 208 matches the folded edge 112 . When the filter screen 20 is inserted into the fixing flange 10 , the chamfer 208 can cooperate with the folded edge 112 for guidance.

[0067] In the disclosed embodiment, the docking portion 204 of the filter 20 is also provided with a chamfer 208, and the inclination direction and inclination angle of the chamfer 208 are the same as or similar to the folded edge 112. In this way, when the filter 20 is inserted into the fixed flange 10, the chamfer 208 can cooperate with the folded edge 112 for guidance, thereby further improving the accuracy of the insertion of the filter 20.

[0068] Optionally, both ends of the butt joint 204 of the filter screen 20 in the thickness direction are provided with chamfers 208 to facilitate matching with the first folded edge and the second folded edge.

[0069] Alternatively, if Figure 4 and Figure 7 As shown, the fixed flange 10 includes an upper flange 101, a lower flange 102, a left flange 103 and a right flange 104. The lower flange 102 is arranged opposite to the upper flange 101, and the lower flange 102 is provided with a socket 107; the left flange 103 is connected between the left end of the upper flange 101 and the left end of the lower flange 102; the right flange 104 is connected between the right end of the upper flange 101 and the right end of the lower flange 102; wherein, the left flange 103 and the right flange 104 are both defined with a sliding groove 109 on one side facing the installation space, and the sliding groove 109 extends along the length direction of the left flange 103 and the right flange 104, and the filter 20 can slide along the sliding groove 109 to be inserted into or withdrawn from the installation space 106.

[0070] In the embodiment of the present disclosure, the fixed flange 10 includes an upper flange 101, a left flange 103, a lower flange 102 and a right flange 104 which are sequentially connected along the circumference of the fixed flange 10, and the lower flange 102 is provided with a socket 107, so that it can be inserted into the installation space 106 from the bottom of the fixed flange 10. Among them, the inner sides of the left flange 103 and the right flange 104 are both defined with a sliding groove 109, and the sliding groove 109 extends along the length direction of the left flange 103 and the right flange 104, so that the sliding groove 109 is a complete groove along the length direction of the left flange 103 and the right flange 104, and will not be disconnected in the middle. In this way, compared with the discontinuous sliding groove 109, the filter screen 20 will not get stuck, and the smoothness of the sliding of the filter screen 20 is improved, ensuring that the filter screen 20 can slide to the bottom and ensure that the filter screen 20 is installed in place.

[0071] Alternatively, if Figure 7 As shown, the sliding groove is a U-shaped groove.

[0072] Alternatively, if Figure 5 , Fig. 9 and Fig.10 As shown, the filter 20 includes a sliding portion 206, which is connected between the pushing portion 203 and the docking portion 204, and there are two sliding portions 206, which are respectively located at two opposite ends of the length direction of the filter 20; wherein, when the filter 20 is inserted into the installation space 106, the sliding portion 206 slides into the sliding groove 109, and the sliding portion 206 is configured with a protrusion 207. When the sliding portion 206 is located in the sliding groove 109, the protrusion 207 abuts against the groove wall of the sliding groove 109.

[0073] In the disclosed embodiment, sliding parts 206 are provided on both sides of the filter 20. The sliding parts 206 can slide along the sliding groove 109. The sliding parts 206 are constructed with protrusions 207. The protrusions 207 can contact the sliding groove 109, thereby reducing the contact area between the sliding parts 206 and the sliding groove 109, reducing friction, and thus ensuring the smoothness of insertion and extraction of the filter 20.

[0074] Optionally, there are multiple protrusions 207 , and the multiple protrusions 207 are sequentially spaced apart along the length direction of the sliding portion 206 .

[0075] Optionally, the protrusion 207 is arranged on one side or both sides of the sliding portion 206 in the thickness direction, which will not affect the depth of the sliding portion 206 inserted into the sliding groove 109 and can also reduce the contact area between the sliding portion 206 and the sliding groove 109.

[0076] Alternatively, if Figure 5 , Figure 8 and Fig. 9As shown, the push portion 203 further includes a baffle 209 . When the filter screen 20 is inserted into the installation space 106 and the buckle 205 is engaged with the slot 108 , the baffle 209 covers the side of the socket 107 away from the abutment portion.

[0077] In the disclosed embodiment, the pushing portion 203 is provided with a baffle 209. When the filter 20 is inserted into the installation space 106 and installed in place, the baffle can cover the outside of the socket 107, thereby sealing the outside of the socket 107, reducing gaps and improving the appearance of the appearance.

[0078] Optionally, the baffle 209 is overlapped on a side of the lower flange 102 facing away from the upper flange 101 .

[0079] Optionally, the orthographic projection of the baffle 209 on the socket is greater than or equal to the area of ​​the socket so as to completely cover the socket.

[0080] Optionally, the length of the socket 107 is greater than or equal to the length of the filter 20 to ensure smooth extraction and insertion of the filter 20 .

[0081] Optionally, the fixed flange 10 includes a first flange and a second flange, and one end or both ends of the first flange are provided with a flange 105; the second flange is connected to one end or both ends of the first flange, and when the first flange is connected to the second flange, the flange 105 is in contact with and connected to the second flange; wherein the first flange includes any one of the upper flange 101, the lower flange 102, the left flange 103 and the right flange 104, and the second flange includes one or two adjacent to any one of the upper flange 101, the lower flange 102, the left flange 103 and the right flange 104.

[0082] In the embodiment of the present disclosure, two adjacent flanges are connected, and one of the adjacent flanges is provided with a flange 105, which can fit with the end of the other adjacent flange to increase the connection area of ​​the two flanges, thereby improving the connection strength and the strength of the fixed flange 10.

[0083] Optionally, a first flange is provided at one or both ends of the upper flange 101 in the length direction, and the first flange can be attached to and connected with the lower end of the left flange or the upper end of the right flange to achieve the connection between the upper flange and the left flange and the right flange.

[0084] Optionally, a second flange is provided at one or both ends of the length direction of the lower flange, and the second flange can be attached to and connected with the lower end of the left flange or the lower end of the right flange to achieve the connection between the lower flange and the left flange and the right flange.

[0085] Optionally, the upper end and / or lower end of the left flange is provided with a third flange, and the third flange can be attached to and connected to the left end of the upper flange or the lower flange.

[0086] Optionally, the upper end and / or lower end of the right flange is provided with a third flange, and the third flange can be attached to and connected with the right end of the upper flange or the lower flange.

[0087] Optionally, two adjacent flanges are connected by welding.

[0088] Optionally, the flange of the first flange is connected to the end of the second flange by welding.

[0089] Alternatively, if Figure 5 As shown, there are multiple buckles 205 , which are arranged in sequence and spaced apart along the length direction of the pushing portion 203 , and the number of the slots 108 is the same as the number of the buckles 205 and corresponds one to one.

[0090] In the disclosed embodiment, a plurality of buckles 205 are provided, which can improve the connection stability between the filter screen 20 and the fixed flange 10 in the length direction of the pushing portion 203, avoid bending and deformation of the filter screen 20, and also avoid separation of the filter screen 20 from the fixed flange 10.

[0091] For example, the number of the buckles 205 is two, three, or four.

[0092] Optionally, the fixing frame 201 is made of plastic, which facilitates the arrangement of the buckle 205 , thereby enabling the filter screen 20 to be connected to the fixing flange 10 through the buckle 205 and the slot 108 .

[0093] An embodiment of the present disclosure provides an air duct machine, which includes a filter assembly for the air duct machine as described in any of the above embodiments.

[0094] The duct air conditioner provided in the embodiments of the present disclosure includes the filter assembly for duct air conditioners of any of the above embodiments, and thus has the beneficial effects of the filter assembly for duct air conditioners of any of the above embodiments, which will not be described in detail here.

[0095] Alternatively, if Figure 1 As shown, the duct air conditioner includes a housing 30, which defines an air duct having a return air port 301 and an air outlet. The duct air conditioner also includes a fan and a heat exchanger, both of which are located in the air duct, and the fan can drive the airflow of the return air port 301 to flow through the heat exchanger and then to the air outlet.

[0096] Optionally, the fixing flange 10 is disposed at the return air port 301 , and the fixing flange 10 is detachably connected to the shell 30 , so that the fixing flange 10 can be easily disassembled for maintenance and installation.

[0097] Optionally, the fixing flange 10 is connected to the housing 30 by screws.

[0098] Optionally, one or more of the upper flange 101, the lower flange 102, the left flange 103 and the right flange 104 of the fixed flange 10 are provided with a connecting edge, and a connecting plate is connected to the end of the fixed flange 10 facing the shell 30, thereby increasing the connection area between the fixed flange 10 and the shell 30 and facilitating the connection between the connecting plate and the shell 30.

[0099] Optionally, the connecting plate is connected to the housing 30 by screws.

[0100] Optionally, the fixing flange 10 protrudes from the return air port 301 .

[0101] Optionally, the duct machine also includes a return air duct, which is connected to the fixed flange 10, and the outlet of the return air duct is connected to the return air port 301, and when the filter 20 is inserted into the fixed flange 10, the filter 20 is located at the rear side of the return air duct.

[0102] Optionally, the return air duct can be fixed to the fixing flange 10 by screws, rivets or directly, so that when it is necessary to inspect and repair the components inside the duct machine, the return air duct can be directly disassembled without disassembling other parts.

[0103] Optionally, the outlet end of the return air duct is sleeved on the outer wall surface of the fixed flange 10 , and the inner wall surface of the outlet end of the return air duct is in contact with the outer wall surface of the fixed flange 10 .

[0104] It can be understood that the outlet end of the return air duct can also be connected to the inner wall surface of the fixing flange 10.

[0105] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A filter assembly for a duct machine, characterized in that: include: The fixed flange is suitable for being located at the return air outlet of the duct machine, the fixed flange is annular and defines an installation space, and at least one side of the fixed flange is provided with a socket connected to the installation space; The filter can be inserted into or withdrawn from the installation space through the socket. When the filter is inserted into the installation space, the filter is suitable for covering the return air outlet; Among them, the filter includes a pushing part and a docking part arranged in sequence along the insertion direction, one of the side walls of the pushing part and the socket is provided with a buckle, and the other of the side walls of the pushing part and the socket is provided with a slot. When the filter is inserted into the installation space and the docking part abuts against the fixed flange, the buckle is connected to the slot to limit the filter from being separated from the fixed flange.

2. The filter assembly for a duct machine according to claim 1, characterized in that the buckle include: The clamping protrusion is clamped with the clamping slot when the clamping buckle is connected with the clamping slot; The operating part is connected with the clamping protrusion. After the clamping protrusion is clamped with the clamping slot, the operating part protrudes out of the outside of the socket. When the operating part is subjected to force, it can drive the clamping protrusion to move in the direction of leaving the clamping slot, so that the clamping protrusion is separated from the clamping slot.

3. The filter assembly for a duct machine according to claim 2, characterized in that: When the push portion is provided with a buckle and the side wall of the socket is provided with a slot, the operating portion includes: First kneading plate; The second kneading plate is arranged opposite to the first kneading plate, and the clamping protrusion is arranged on the side of the first kneading plate away from the second kneading plate and protrudes from the first kneading plate, and / or the clamping protrusion is arranged on the side of the second kneading plate away from the first kneading plate and protrudes from the second kneading plate.

4. The filter assembly for a duct machine according to claim 1, characterized in that the filter include: A fixed frame, in the shape of a ring; The reinforcing rib is located in the fixing frame and extends along the width and / or length direction of the fixing frame to divide the fixing frame into a plurality of filtering spaces; A filter medium covers the filter space; Wherein, when the pushing portion is provided with a buckle, the buckle and the reinforcing rib are arranged at intervals; and / or, the fixing frame is made of plastic.

5. The filter assembly for a duct air conditioner according to claim 1, characterized in that: The fixed flange includes an insertion end and an abutment end sequentially arranged along the filter insertion direction, and the insertion end is provided with a socket. The filter assembly for the duct machine also includes: The folded edge is arranged on the side of the abutting end facing the insertion end. After the filter is inserted into the installation space, the abutting part abuts the abutting end. The folded edge is located on one or both sides of the abutting part, and along the direction from the abutting end to the insertion end, the folded edge is inclined in the direction away from the abutting part.

6. The filter assembly for a duct machine according to claim 5, characterized in that: The butt joint of the filter screen is chamfered, and the chamfer matches the folded edge, so that when the filter screen is inserted into the fixed flange, the chamfer can cooperate with the folded edge for guidance; and / or, The number of folding edges is multiple, and the multiple folding edges include: A first folded edge is located at one side of the butt joint portion and is inclined in a first direction away from the butt joint portion along a direction from the butt joint end to the insertion end; A second folded edge is located at the other side of the butt joint portion and is inclined in a second direction away from the other side of the butt joint portion along a direction from the butt joint end to the insertion end, and the second direction is opposite to the first direction; The first folded edge and the second folded edge are arranged alternately and spaced in sequence along the length direction of the abutting end.

7. The filter assembly for a duct machine according to claim 1, characterized in that: The fixing flange consists of: Upper flange; The lower flange is arranged opposite to the upper flange, and the lower flange is provided with a socket; A left flange connected between the left end of the upper flange and the left end of the lower flange; A right flange connected between the right end of the upper flange and the right end of the lower flange; Wherein, both the left flange and the right flange are defined with a sliding groove, and the sliding groove extends along the length direction of the left flange and the right flange, and the filter net can slide along the sliding groove to be inserted into or pulled out of the installation space.

8. The filter assembly for a duct machine according to claim 7, characterized in that: The filter screen includes two sliding parts, which are respectively located at two ends of the length direction of the filter screen. When the filter screen is inserted into the installation space, the sliding part slides in the sliding groove; wherein the sliding part is configured with a protrusion, and when the sliding part is in the sliding groove, the protrusion abuts against the groove wall of the sliding groove; and / or, The fixing flange consists of: A first flange, wherein one or both ends of the first flange are provided with a flange; The second flange is connected to one end or both ends of the first flange. When the first flange is connected to the second flange, the flange is attached to and connected to the second flange. The first flange includes any one of the upper flange, the lower flange, the left flange and the right flange, and the second flange includes one or two adjacent to any one of the upper flange, the lower flange, the left flange and the right flange.

9. The filter assembly for a duct machine according to any one of claims 1 to 8, characterized in that: The push part further includes a baffle, and when the filter screen is inserted into the installation space and the buckle is engaged with the slot, the baffle covers the side of the socket away from the installation space; and / or, There are multiple buckles, which are arranged in sequence and at intervals along the length direction of the pushing portion, and the number of the card slots is the same as the number of the buckles and corresponds one to one.

10. A duct machine, characterized in that: include: A housing having an air return port; According to any one of claims 1 to 9, the filter assembly for a duct air conditioner, the fixing flange is arranged at the return air outlet.

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