Heat exchange device

Abstract

The utility model provides a heat exchange device which comprises the following components: a frame body which comprises a top surface and a bottom surface which is arranged opposite to the top surface; the heat exchange accommodating structure is arranged in the frame body and is used for accommodating the heat exchange unit; each heat exchange unit comprises a first attaching part close to the top face and away from the bottom face, and a second attaching part close to the bottom face and away from the top face. The third fitting part and the fourth fitting part are arranged between the top surface and the bottom surface, and the first fitting part and the second fitting part are oppositely arranged; the third fitting part and the fourth fitting part are oppositely arranged; the heat exchange containing structure comprises a first fixing part, a second fixing part, a third fixing part and a fourth fixing part, and the first fixing part, the second fixing part, the third fixing part and the fourth fixing part make at least partial contact with the first attaching part, the second attaching part, the third attaching part and the fourth attaching part correspondingly. The first fixing part, the third fixing part and the fourth fixing part are of an integrally-formed structure.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, specifically to a heat exchange device. Background Technology

[0002] Existing heat exchange devices typically use sheet metal guide rails to secure the heat exchange unit. Specifically, these guide rails fix the relative corners of the heat exchange unit, ensuring its stable installation within the heat exchange device. During assembly, the bottom sheet metal guide rails are first installed on the bottom surface of the frame, followed by the heat exchange unit, which is then placed on top to secure its bottom corners. Next, the middle sheet metal guide rails are installed to secure the left and right corners of the heat exchange unit, preventing it from wobbling when placed horizontally. Finally, the top sheet metal guide rails are installed on the top surface of the frame. Once the top surface of the frame is closed, the top sheet metal guide rails align with the top corners of the heat exchange unit, securing it firmly within the heat exchange device. When inspection of the heat exchange unit is required, disassembly is performed in the reverse order of assembly: the top surface of the frame is opened, and the sheet metal guide rails securing the left and right sides of the heat exchange unit are removed before the unit can be removed.

[0003] The assembly process is complex and involves many sheet metal guide rail components, which makes the assembly time long. Even after the installer has completed the inspection and reinstalled the parts, errors are likely to occur during the assembly process, affecting safety and performance. Utility Model Content

[0004] To address the aforementioned issues, this invention provides a heat exchange device that facilitates the installation of a heat exchange unit. By forming a single, integrated structure with the first, third, and fourth fixing parts, and cooperating with the second fixing part, the heat exchange unit is secured and limited. This eliminates the need for individual fixing components, significantly reducing assembly time and preventing assembly errors.

[0005] The heat exchange device proposed in this utility model includes: a frame forming an outline, which is box-shaped and includes a top surface and a bottom surface opposite to the top surface; a heat exchange housing structure disposed in the frame for housing a heat exchange unit; the heat exchange unit includes: a first fitting part disposed near the top surface and away from the bottom surface, and a second fitting part disposed near the bottom surface and away from the top surface. The third fitting portion is disposed between the top surface and the bottom surface; the fourth fitting portion is disposed between the top surface and the bottom surface; the first fitting portion and the second fitting portion are disposed opposite to each other; the third fitting portion and the fourth fitting portion are disposed opposite to each other; the heat exchange accommodating structure includes a first fixing portion, a second fixing portion, a third fixing portion and a fourth fixing portion, the first fixing portion, the second fixing portion, the third fixing portion and the fourth fixing portion respectively being in at least partial contact with the first fitting portion, the second fixing portion, the third fitting portion and the fourth fitting portion; the first fixing portion is disposed between the top surface and the first fitting portion; the second fixing portion is disposed between the bottom surface and the second fitting portion; the first fixing portion, the third fixing portion and the fourth fixing portion are integrally formed structures.

[0006] In some illustrative embodiments, the first fitting portion includes an upper edge, and the first fixing portion is at least partially fitted with the upper edge; the second fitting portion includes a lower edge, and the second fixing portion is at least partially fitted with the lower edge; the third fitting portion includes a first side edge, and the third fixing portion is at least partially fitted with the first side edge; the fourth fitting portion includes a second side edge, and the fourth fixing portion is at least partially fitted with the second side edge.

[0007] In some illustrative embodiments, the first fixing part is completely fitted with the upper edge.

[0008] In some illustrative embodiments, the second fixing part is completely fitted with the lower edge.

[0009] In some illustrative embodiments, the third fixing part is completely fitted with the first side corner, and the third fixing part is in the shape of "<".

[0010] In some illustrative embodiments, the fourth fixing part is completely fitted with the second side edge, and the fourth fixing part is in the shape of ">".

[0011] In some illustrative embodiments, the heat exchange unit is a hexagonal prism; the first fitting part further includes a first connecting surface, which connects the two upper corners; the first fixing part is fitted with the first connecting surface; the second fitting part further includes a second connecting surface, which connects the two lower corners; the second fixing part is fitted with the second connecting surface.

[0012] In some illustrative embodiments, the heat exchange unit is a quadrangular prism; the first fixing part is in the shape of "∧" and the second fixing part is in the shape of "∨".

[0013] In some illustrative embodiments, the heat exchange device further includes a water storage tank located upstream of the heat exchange unit, which has a recessed structure extending from inside the frame to outside the frame.

[0014] In some illustrative embodiments, the heat exchange unit further includes: a first bonding surface, a surface formed by extending the third bonding portion toward the second bonding portion; a second bonding surface, a surface formed by extending the fourth bonding portion toward the second bonding portion; the water storage tank includes: a first water storage tank and / or a second water storage tank; the first water storage tank is located upstream of the first bonding surface; the second water storage tank is located upstream of the second bonding surface.

[0015] In some illustrative embodiments, the first water storage tank includes: a first water-retaining wall connected to the second fitting portion, which is an inclined surface extending from the second fitting surface toward the bottom surface of the frame.

[0016] In some illustrative embodiments, the heat exchange device further includes a first filter screen receiving structure for receiving a first filter screen; the first filter screen receiving structure includes: a first groove, connected to the third fixing part, having a recessed structure from the bottom surface to the top surface; a second groove, disposed opposite to the first groove and having a recessed structure from the top surface to the bottom surface; and the first filter screen, disposed between the first groove and the second groove.

[0017] In some illustrative embodiments, the first water storage tank further includes a second water-retaining wall, connected to the second groove, and having an inclined surface extending from the direction toward the bottom surface.

[0018] In some illustrative embodiments, the heat exchange device further includes a second filter receiving structure for receiving a second filter; the second filter is parallel to the second contact surface; the second filter receiving structure includes: a first slot connected to the fourth fixing part, extending vertically from the fourth fixing part toward the bottom surface; a second slot connected to the second fixing part, recessed from the fourth fixing part toward the second fixing part; and a second filter disposed between the first slot and the second slot.

[0019] In some illustrative embodiments, the second water storage tank includes a third water-retaining wall connected to the second slot and having an inclined surface extending toward the bottom surface.

[0020] As can be seen from the above technical solution, the heat exchange device of this utility model has at least the following beneficial effects: the first fixing part, the third fixing part, and the fourth fixing part in the heat exchange housing structure are integrally formed. That is to say, when installing the heat exchange unit, the components can be assembled only once to make the components abut against the first contact part near the top surface of the frame of the heat exchange unit, as well as the third and fourth contact parts located on both sides of the first contact part, thereby simultaneously limiting the position of the heat exchange unit in the vertical and horizontal directions. In this way, the number of sheet metal guide rail components required for assembling the heat exchange unit is reduced, and the number of steps during assembly and inspection is reduced, thereby shortening the time spent on assembly and inspection. Attached Figure Description

[0021] Figure 1 This is a perspective view of the heat exchange device according to an embodiment of the present utility model;

[0022] Figure 2 This is a side sectional view of the heat exchange device according to the first embodiment of the present invention;

[0023] Figure 3 This is a cross-sectional view of the heat exchange device of the first embodiment of the present invention after disassembling the top surface of the frame;

[0024] Figure 4 This is a cross-sectional view of the heat exchange device according to the first embodiment of the present invention from another angle;

[0025] Figure 5 This is a partial schematic diagram of the heat exchange device according to the first embodiment of the present utility model (first filter screen receiving structure).

[0026] Figure 6 This is a second partial schematic diagram of the heat exchange device according to the first embodiment of the present invention (second filter screen receiving structure).

[0027] Figure 7 This is a partial schematic diagram of the heat exchange device according to the first embodiment of the present utility model (drive component housing structure).

[0028] Figure 8 This is a structural diagram of the water storage tank of the heat exchange device according to an embodiment of the present invention;

[0029] Figure 9 This is a perspective view of the heat exchange device of this utility model after disassembly of the fourth side.

[0030] Figure 10 Here are simplified diagrams of various embodiments of the heat exchange device when the heat exchange unit is a square prism;

[0031] Figure 11 The diagram shows various embodiments of the heat exchange device when the heat exchange unit is a hexagonal prism.

[0032] Figure label:

[0033] 100. Frame; 101. First side; 102. Second side; 103. Third side; 104. Fourth side; 105. First inspection port; 106. Second inspection port; 107. Air inlet; 108. Exhaust outlet; 109. Exhaust inlet; 110. Air inlet; 111. Top surface;

[0034] 200. First housing; 201. Fan blade receiving structure; 202. First groove; 203. Third fixing part; 204. First fixing part; 205. Fourth fixing part; 206. First bypass ventilation duct housing; 2061. Bypass air outlet; 207. First slot;

[0035] 300. Second housing; 301. Motor housing structure; 3011. Inner hollow structure; 3012. Outer hollow structure; 3013. Settling structure; 302. Second groove; 303. First water storage tank; 3031. First water-retaining wall; 3032. Second water-retaining wall; 304. Second fixing part; 305. Second water storage tank; 3051. Third water-retaining wall; 3052. Enclosure wall; 306. Second side ventilation duct shell; 307. Second slot;

[0036] 400. Drive assembly; 401. Fan blade; 402. Electric motor;

[0037] 500, heat exchange unit; 501, first bonding part; 502, second bonding part; 503, third bonding part; 504, fourth bonding part; 505, first bonding surface; 506, second bonding surface;

[0038] 600. First filter screen;

[0039] 700. Second filter screen;

[0040] 800. Air valve. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0042] The orientations or positional relationships described below are for the convenience of describing this utility model and simplifying the description only, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. For example, terms such as "vertical", "horizontal", "left", "right", "up", "down", "front", "rear" and similar expressions are for illustrative purposes only and do not represent the only embodiments.

[0043] Furthermore, the use of ordinal numbers such as "first" and "second" in the specification and claims to modify the corresponding elements does not itself imply or represent any ordinal number of the element, nor does it represent the order of one element with another element, or the order of manufacturing methods. The use of these ordinal numbers is only to enable a named element to be clearly distinguished from another element with the same name.

[0044] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0045] Additionally, the terms "upstream" and "downstream" refer to the airflow formed inside the heat exchanger when it is operating normally. "Upstream direction" refers to the opposite direction of the airflow; "downstream direction" refers to the direction of the airflow. "Upstream side" refers to the side located in the upstream direction; "downstream side" refers to the side located in the downstream direction.

[0046] "Installation status of the heat exchange device" refers to the state in which the heat exchange device is installed on the ceiling and is in normal operation. A heat exchange device is a device that draws in air from indoors and outdoors, exchanges heat within the device, and then exhausts the air out of the room or outdoors. The heat exchange referred to here is the process of heat transfer and energy exchange between spaces caused by temperature differences.

[0047] It should be noted that if the heat exchange device is installed between the roof and ceiling of a building, the vertical direction can be understood as perpendicular to the ceiling, and the horizontal direction can be understood as parallel to the ceiling. In some embodiments, after normal installation, the heat exchange device can be installed between the roof and ceiling of the building, and one side wall of the heat exchange device can be flush with the ceiling. For example, the bottom surface of an air conditioning unit can be flush with the ceiling.

[0048] The heat exchange device of this invention can be installed in either a first space or a second space. The first space and the second space are two separate spaces, for example, separated by a wall. The heat exchange device can draw in air from either of the two spaces and then supply air to that space, or supply air to the other space. For example, the heat exchange device can draw in air from the first space and then supply air to the first space, or supply air to the second space. In this embodiment, the heat exchange device is installed in the first space, but the heat exchange device can also be installed in the second space or other spaces besides the first and second spaces. In this embodiment, the first space is indoors, and the second space is outdoors.

[0049] This utility model's heat exchange device includes two installation directions: a first installation direction and a second installation direction. Operators can choose the appropriate installation direction based on the location of the air inlet and outlet of the installation unit. The first installation direction of the heat exchange device is with the first fixing part 204 close to the roof and away from the ceiling. The second installation direction of the heat exchange device is with the first fixing part 204 close to the ceiling and away from the roof. In other words, rotating the heat exchange device in the first installation direction 180 degrees around its central horizontal axis will result in the heat exchange device being in the second installation direction.

[0050] The following is combined Figures 1 to 11 The heat exchange device of this utility model will be specifically described with respect to the first installation direction.

[0051] like Figures 1 to 4 , Figure 9 As shown, the heat exchange device of this utility model includes a frame 100, a heat exchange housing structure, a heat exchange unit 500, a first side ventilation duct shell 206, a second side ventilation duct shell 306, and an air valve 800.

[0052] The frame 100 forms an outline and is box-shaped. The frame 100 may have six sidewalls, which can be a top, a bottom, and four sides, with the top surface 111 facing the bottom surface. The two opposing sides are defined as the first side 101 and the second side 102, and the third side 103 and the fourth side 104 connect the first side 101 and the second side 102, with the third side 103 and the fourth side 104 facing each other.

[0053] The side wall of the frame 100 is provided with an air inlet 107, an air outlet 110, an exhaust inlet 109, and an exhaust outlet 108. In this embodiment, the air inlet 107 and the exhaust outlet 108 are located on the same side wall of the frame 100, while the exhaust inlet 109 and the air outlet 110 are located on opposite side walls. For example, the first side 101 has an air inlet 107 and an exhaust outlet 108, and the second side 102 has an exhaust inlet 109 and an air outlet 110. Furthermore, the air inlet 107 and the air outlet 110 are arranged diagonally, as are the exhaust inlet 109 and the exhaust outlet 108.

[0054] The air inlet 107 is an opening that connects the interior of the frame 100 to the outside through a pipe, allowing outdoor air to enter the interior of the frame 100. The air inlet 107 is normally open, meaning that the air outlet 110 is open in both heat exchange mode and ventilation mode.

[0055] Air outlet 110 is an opening that connects the interior of frame 100 to the room via a pipe, allowing air from inside frame 100 to be blown into the room. Air outlet 110 is normally open, meaning that air outlet 110 is open in both heat exchange mode and ventilation mode.

[0056] The exhaust air inlet 109 is an opening that connects the interior of the frame 100 and the room via a pipe, so as to draw indoor air into the frame 100. In this embodiment, a damper 800 for switching the airflow direction is provided on the downstream side of the exhaust air inlet 109 to switch different air paths. Details are described below.

[0057] The exhaust vent 108 is an opening that connects the interior of the frame 100 to the exterior via a pipe, allowing air inside the frame 100 to be blown to the outside. The exhaust vent 108 is normally open, meaning that the exhaust vent 108 is open in both heat exchange mode and ventilation mode.

[0058] like Figures 2 to 4 As shown, the heat exchange device has an air supply path, an exhaust path, and a bypass path.

[0059] The air supply path is located inside the frame 100. It is a path that connects the air supply inlet 107 and the air supply outlet 110, so that the air in the air supply path flows from the air supply inlet 107 through the heat exchange unit 500 to the air supply outlet 110.

[0060] The exhaust air path is located inside the frame 100 and is a path that connects the exhaust air inlet 109 and the exhaust air outlet 108, so that the air in the exhaust air path flows from the exhaust air inlet 109 through the heat exchange unit 500 to the exhaust air outlet 108.

[0061] In this embodiment, the supply air path and the exhaust air path do not intersect. However, based on the fact that the supply air inlet 107 and the supply air outlet 110 are diagonally arranged, and the exhaust air inlet 109 and the exhaust air outlet 108 are diagonally arranged, from the cross-section and / or longitudinal section of the heat exchange device, the supply air path and the exhaust air path form a cross air path. The cross air path can make full use of the entire heat exchange unit 500 and improve the overall heat exchange efficiency.

[0062] For example, the air supply path formed by the air inlet 107 and the air outlet 110 can be used to introduce fresh outdoor air; correspondingly, the exhaust air path formed by the exhaust inlet 109 and the exhaust outlet 108 can be used to exhaust indoor return air. Since the fresh air and return air do not interfere with each other in the heat exchange unit 500 and pass through each other, heat exchange between the fresh air and return air can be achieved.

[0063] like Figure 4 As shown, the bypass ventilation path is located inside the frame 100. It is a ventilation path that guides air to enter from the exhaust air inlet 109, pass through the bypass channel below, but does not pass through the heat exchange unit 500, and is directly discharged from the exhaust air outlet 108.

[0064] like Figure 9 As shown, both the first bypass ventilation duct shell 206 and the second bypass ventilation duct shell 306 are disposed within the frame 100. The fourth side 104 of the frame 100 is interconnected with the first bypass ventilation duct shell 206 and the second bypass ventilation duct shell 306 to form a bypass channel. In this embodiment, the bypass channel is located near the side wall of the frame 100 and is separated from the heat exchange housing structure. The bypass channel includes a bypass air inlet and a bypass air outlet 2061. The bypass air inlet is located downstream of the exhaust air inlet 109, as described in detail below; the bypass air outlet 2061 is disposed on the first bypass ventilation duct shell 206 and connects to the exhaust air outlet 108. Specifically, the bypass air outlet 2061 is an opening in the first bypass ventilation duct shell 206.

[0065] like Figure 4 , 9 As shown, the damper 800 is located downstream of the exhaust inlet 109 and is used to switch between the bypass ventilation path and the exhaust ventilation path. Further, the first bypass ventilation duct housing 206 and the second bypass ventilation duct housing 306 are interconnected to form a slot and a bypass inlet. The damper 800 is fixed downstream of the exhaust inlet 109 by cooperating with the slot. The damper 800 can be controlled by a stepper motor to swing, opening and closing the bypass inlet to switch between the bypass ventilation path and the exhaust ventilation path. When the damper 800 opens the bypass inlet, the bypass channel is connected to the exhaust inlet / outlet.

[0066] When the heat exchanger is operating in heat exchange mode, both the supply air path and the exhaust air path are connected. When the heat exchanger is operating in ventilation mode, both the bypass air path and the supply air path are connected. Specifically, the damper 800 downstream of the exhaust air inlet 109 is used to switch whether air enters the frame 100 through the exhaust air path or the bypass air path. That is, when the damper 800 closes the exhaust air path, air enters the frame 100 through the bypass air path; when the damper 800 closes the bypass air path, air enters the frame 100 through the exhaust air path.

[0067] In this way, when the air valve 800 opens the bypass air inlet, the indoor return air is discharged through the bypass air duct and does not exchange heat with the outdoor fresh air. This can be applied to scenarios where outdoor air conditions (such as temperature, humidity, air quality and other air parameters) are suitable to improve indoor air quality.

[0068] like Figure 1 As shown, a first inspection port 105 and a second inspection port 106 are also provided on the side wall of the frame 100. The first inspection port 105 is used for the inspection of the first filter screen 600 described below, and the second filter screen 700 is used for the inspection of the second filter screen 700 described below. The first inspection port 105 and the second inspection port 106 can be provided on the same side wall or different side walls. For example, the first inspection port 105 and the second inspection port 106 are provided on the third side wall 103; or the first inspection port 105 and the second inspection port 106 are provided on the fourth side wall 104; or the first inspection port 105 is provided on the third side wall 103, and the second inspection port 106 is provided on the fourth side wall 104; or the first inspection port 105 is provided on the fourth side wall 104, and the second inspection port 106 is provided on the third side wall 103. In this embodiment, for ease of inspection, the first inspection port 105 and the second inspection port 106 are both provided on the same side wall, that is, on the third side wall 103.

[0069] like Figures 2 to 3 As shown, the heat exchange housing structure is located inside the frame 100 and is used to house the heat exchange unit 500.

[0070] A heat exchange unit 500 is housed within a heat exchange housing structure. It is constructed from multiple thin plates bonded together. For example, the heat exchange unit 500 can be a full heat exchange core. Air flows through the supply and exhaust air paths and undergoes heat exchange as it passes through the heat exchange unit 500. The heat exchange unit 500 can consist of one heat exchange core or two or more heat exchange cores, and its shape is designed to fit the heat exchange housing structure. Figure 4 As shown, this embodiment consists of multiple heat exchange cores. For example, two heat exchange cores are arranged side by side, both of which are hexagonal prisms, and the two heat exchange cores form a heat exchange unit 500. In other optional embodiments, the heat exchange cores can also be square prisms.

[0071] The heat exchange unit 500 includes a first bonding portion 501, a second bonding portion 502, a third bonding portion 503, and a fourth bonding portion 504. The first bonding portion 501 is located near the top surface 111 of the frame 100 and away from the bottom surface of the frame 100; the second bonding portion 502 is located near the bottom surface of the frame 100 and away from the top surface 111 of the frame 100; the third bonding portion 503 is located between the top surface 111 and the bottom surface of the frame 100; and the fourth bonding portion 504 is located between the top surface 111 and the bottom surface of the frame 100. The first bonding portion 501 and the second bonding portion 502 are arranged opposite to each other; the third bonding portion 503 and the fourth bonding portion 504 are arranged opposite to each other.

[0072] The heat exchange containment structure includes a first fixing part 204, a second fixing part 304, a third fixing part 203, a fourth fixing part 205, a first contact surface 505, and a second contact surface 506.

[0073] The first fixing part 204, the second fixing part 304, the third fixing part 203, and the fourth fixing part 205 are at least partially in contact with the first fitting part 501, the second fitting part 502, the third fitting part 503, and the fourth fitting part 504, respectively. The first fixing part 204 is disposed between the top surface 111 and the first fitting part 501; the second fixing part 304 is disposed between the bottom surface and the second fitting part 502. The first fitting surface 505 is a surface formed by extending from the third fitting part 503 toward the second fitting part 502. The second fitting surface 506 is a surface formed by extending from the fourth fitting part 504 toward the second fitting part 502.

[0074] The first fixing part 204, the third fixing part 203, and the fourth fixing part 205 are integrally formed. Specifically, the first fixing part 204, the third fixing part 203, and the fourth fixing part 205 are connected by a connecting part, that is, the first fixing part 204, the third fixing part 203, the fourth fixing part 205, and the connecting part are integrally formed. The connecting part includes a first connecting part and a second connecting part. The first connecting part connects the first fixing part 204 and the third fixing part 203 in a "┌" shape, and the second connecting part connects the first fixing part 204 and the fourth fixing part 205 in a "┐" shape.

[0075] The first fitting portion 501 includes an upper angle, and the first fixing portion 204 is at least partially fitted with the upper angle. Further, the first fixing portion 204 can be completely fitted with the upper angle. The upper angle includes two adjacent faces that are continuously formed and extend in an angle, which can be an obtuse angle, a right angle, or an acute angle. Based on this, the partial fitting of the first fixing portion 204 with the upper angle can be understood as a portion of the first fixing portion 204 being arranged parallel to one face forming the upper angle and abutting against that surface of the upper angle, while the other face forming the upper angle is exposed outside the first fixing portion 204, such as being located on the left side of the first fixing portion 204, or, such as being located on the right side of the first fixing portion 204. Additionally, the complete fitting of the first fixing portion 204 with the upper angle can be understood as the first fixing portion 204 forming a receiving groove adapted to the aforementioned angle, so that the upper angle is fitted into the receiving groove, and the adjacent inner walls of the receiving groove also abut against the aforementioned two adjacent faces of the upper angle.

[0076] The second fitting portion 502 includes a lower edge, and the second fixing portion 304 is at least partially fitted with the lower edge. Further, the second fixing portion 304 can be completely fitted with the lower edge. Similar to the upper edge and the first fixing portion 204 described above, the lower edge also has two adjacent and continuous surfaces. Based on this, the way the second fixing portion 304 partially fits with the lower edge, and the way the second fixing portion 304 completely fits with the lower edge, are similar to the way the upper edge and the first fixing portion 204 are fitted, and therefore will not be described further.

[0077] The third fitting portion 503 includes a first side angle, and the third fixing portion 203 is at least partially fitted with the first side angle. Further, the third fixing portion 203 can be completely fitted with the first side angle, and the third fixing portion 203 is in the shape of a "<". The first side angle includes two adjacent faces that are continuously formed and whose extending directions form an included angle, which can be an obtuse angle, a right angle, or an acute angle. Based on this, the partial fitting of the third fixing portion 203 with the first side angle can be understood as a portion of the third fixing portion 203 being arranged parallel to one face forming the first side angle and abutting against that surface of the first side angle, while the other face forming the first side angle is exposed outside the third fixing portion 203, such as being located below or above the third fixing portion 203. Furthermore, the fact that the third fixing part 203 is completely fitted to the first side corner can be understood as the third fixing part 203 forming a receiving groove that is adapted to the aforementioned included angle, so that the first side corner is fitted into the receiving groove, and the adjacent inner walls of the receiving groove also abut against the aforementioned two adjacent surfaces of the first side corner.

[0078] The fourth fitting portion 504 includes a second side angle, and the fourth fixing portion 205 is at least partially fitted with the second side angle. Further, the fourth fixing portion 205 can be completely fitted with the second side angle, and the fourth fixing portion 205 is in the shape of ">". Similar to the second side angle and the fourth fixing portion 205 described above, the lower angle also has two adjacent and continuous surfaces. Based on this, the way the second fixing portion 304 partially fits with the lower angle, and the way the second fixing portion 304 completely fits with the lower angle, is similar to the way the second side angle and the fourth fixing portion 205 are fitted, and therefore will not be described further.

[0079] Figure 10 The diagram shows various embodiments of the heat exchange device when the heat exchange unit is a square prism.

[0080] like Figure 10 As shown, when the heat exchange unit 500 is a quadrangular prism, the first bonding part 501, the second bonding part 502, the third bonding part 503, and the fourth bonding part 504 are the four corners of the quadrangular prism.

[0081] As in the second embodiment, refer to Figure 10 As shown in (a), the first fixing part 204, the second fixing part 304, the third fixing part 203 and the fourth fixing part 205 can respectively be at least partially attached to the upper edge, the lower edge, the first side edge and the second side edge, that is, the first fixing part 204, the second fixing part 304, the third fixing part 203 and the fourth fixing part 205 are respectively attached to one side of the four edges, that is, the first fixing part 204, the second fixing part 304, the third fixing part 203 and the fourth fixing part 205 can be flat. Furthermore, the first fixing part 204 can also be parallel to the second fixing part 304, and the third fixing part 203 and the fourth fixing part 205 are in the shape of an "eight".

[0082] As in the third embodiment, refer to Figure 10 As shown in (b), the first fixing part 204 and the second fixing part 304 can at least partially fit with the upper and lower corners, respectively. The shape, structure, and position of the first fixing part 204 and the second fixing part 304 are the same as in the second embodiment, and will not be described in detail here. The third fixing part 203 is completely fitted with the first side corner. Based on the first side corner being a "<" shape, the third fixing part 203 is in a "<" shape. The fourth fixing part 205 is completely fitted with the second side corner. Based on the second side corner being a ">" shape, the fourth fixing part 205 is in a ">" shape.

[0083] As in the fourth embodiment, refer to Figure 10As shown in (c), the first fixing part 204 can completely fit with the upper corner, and based on the upper corner being in the shape of a "∧", the first fixing part 204 is in the shape of a "∧". The second fixing part 304 can completely fit with the lower corner, and based on the lower corner being in the shape of a "∨", the second fixing part 304 is in the shape of a "∨". The shape, structure, and position of the third fixing part 203 and the fourth fixing part 205 are the same as in the first embodiment, and will not be described in detail here.

[0084] As in the fifth embodiment, refer to Figure 10 As shown in (d), the first fixing part 204, the second fixing part 304, the third fixing part 203, and the fourth fixing part 205 are completely fitted to the upper edge, the lower edge, the first side edge, and the second side edge, respectively. The shape, structure, and position of the first fixing part 204 and the second fixing part 304 are the same as those in the fourth embodiment, and the shape, structure, and position of the third fixing part 203 and the fourth fixing part 205 are the same as those in the third embodiment, and will not be described in detail here.

[0085] Figure 11 The diagram shows various embodiments of the heat exchange device when the heat exchange unit is a hexagonal prism.

[0086] like Figure 11 As shown, the heat exchange unit 500 is a hexagonal prism with six edges: two upper edges, two lower edges, a first side edge, and a second side edge. Further, the upper edge closest to the first side edge is defined as the first upper edge, the upper edge closest to the second side edge as the second upper edge, the lower edge closest to the first side edge as the first lower edge, and the lower edge closest to the second side edge as the second lower edge. The first mating portion 501 may include the two upper edges and a first connecting surface between them, which connects the first and second upper edges. The first fixing portion 204 may mat with the first connecting surface. The second mating portion 502 may include the two lower edges and a second connecting surface between them, which connects the first and second lower edges. The second fixing portion 304 mats with the second connecting surface. The first and second connecting surfaces are parallel to each other.

[0087] As in the sixth embodiment, refer to Figure 11As shown in (a), the first fixing part 204, the second fixing part 304, the third fixing part 203 and the fourth fixing part 205 can respectively be at least partially attached to the upper corner, the lower corner, the first side corner and the second side corner, that is, the first fixing part 204, the second fixing part 304, the third fixing part 203 and the fourth fixing part 205 are respectively attached to one side of each corner, that is, the first fixing part 204, the second fixing part 304, the third fixing part 203 and the fourth fixing part 205 can be flat. Furthermore, one side of the first upper corner and the second upper corner constitutes part of the first connecting surface, and one side of the first lower corner and the second lower corner constitutes part of the second connecting surface. The first fixing part 204 can be parallel to the second fixing part 304, and the third fixing part 203 and the fourth fixing part 205 are in the shape of an "eight".

[0088] As in the seventh embodiment, refer to Figure 11 As shown in (c), the first fixing part 204 and the second fixing part 304 can at least partially fit with the upper and lower corners, respectively. The shape, structure, and position of the first fixing part 204 and the second fixing part 304 are the same as in the sixth embodiment, and will not be described in detail here. The third fixing part 203 is completely fitted with the first side corner. Based on the first side corner being a "<" shape, the third fixing part 203 is in a "<" shape. The fourth fixing part 205 is completely fitted with the second side corner. Based on the second side corner being a ">" shape, the fourth fixing part 205 is in a ">" shape.

[0089] As in the first embodiment, refer to Figure 11 As shown in (b), the first fixing part 204 can be completely fitted with the upper corner, that is, completely fitted with the first upper corner, the first connecting surface, and the second upper corner. The second fixing part 304 can be completely fitted with the lower corner, that is, completely fitted with the first lower corner, the second connecting surface, and the second lower corner. The first fixing part 204 and the second fixing part 304 form a symmetrical structure. The third fixing part 203 and the fourth fixing part 205 can be at least partially fitted with the first side corner and the second side corner, respectively. The shape, structure, and position of the third fixing part 203 and the fourth fixing part 205 are the same as those in the sixth embodiment, and will not be described in detail here.

[0090] As in the eighth embodiment, refer to Figure 11 As shown in (d), the first fixing part 204, the second fixing part 304, the third fixing part 203, and the fourth fixing part 205 are completely fitted to the upper edge, the lower edge, the first side edge, and the second side edge, respectively. The shape, structure, and position of the first fixing part 204 and the second fixing part 304 are the same as in the first embodiment, and the shape, structure, and position of the third fixing part 203 and the fourth fixing part 205 are the same as in the seventh embodiment, which will not be described in detail here.

[0091] The heat exchange device also includes: a first filter screen 600 housing structure, a second filter screen 700 housing structure, a drive component 400 housing structure, and a water storage tank.

[0092] like Figure 5 As shown, a first filter screen 600 receiving structure is used to receive the first filter screen 600. The first filter screen 600 is disposed on the upstream side of the first mating surface 505. The first filter screen 600 receiving structure includes a first groove 202 and a second groove 302. The first groove 202 is connected to the third fixing part 203 and has a recessed structure from the bottom surface to the top surface 111. Further, the first groove 202 can also be integrally formed with the third fixing part 203. The second groove 302 is disposed opposite to the first groove 202 and has a recessed structure from the top surface 111 to the bottom surface. The first filter screen 600 is disposed between the first groove 202 and the second groove 302. Figure 6 As shown, a second filter screen 700 receiving structure is used to receive the second filter screen 700. The second filter screen 700 is disposed on the upstream side of the second mating surface 506 and is parallel to the second mating surface 506. The second filter screen 700 receiving structure includes a first slot 207 and a second slot 307. The first slot 207 is connected to the fourth fixing part 205 and has a structure that extends vertically from the fourth fixing part 205 toward the bottom surface. Further, the first slot 207 can also be integrally formed with the fourth fixing part 205. The second slot 307 is connected to the second fixing part 304 and has a structure that is recessed from the fourth fixing part 205 toward the second fixing part 304. Further, the second slot 307 can also be integrally formed with the second fixing part 304. The second filter screen 700 is disposed between the first slot 207 and the second slot 307.

[0093] The first filter 600 and the second filter 700 purify the drawn-in air and prevent dust and fine particles from entering the room. Specifically, the filter unit can be one or more of the following: a pre-filter, an activated carbon filter, a Hepa (High Efficiency Particulate Air) filter, an electrostatic filter, etc. It is understood that the filter unit can also be other filtration forms besides those mentioned above, and this invention does not limit the specific type of filtration.

[0094] like Figure 2 and Figure 5As shown in some illustrative embodiments, a first filter 600 is disposed between the air inlet 107 and the first mating surface 505. Specifically, the first filter 600 includes, but is not limited to, forming an angle with the extending direction of the first mating surface 505, and is disposed vertically. Further, a second filter 700 is disposed between the exhaust inlet 109 and the second mating surface 506, and is connected to the heat exchange unit 500. The first filter 600 and the second filter 700 can be different filters.

[0095] For example, the first filter 600 can be configured to filter PM2.5 particles in the fresh air input through the air inlet 107, while the second filter 700 can be configured to filter dust in the return air input through the exhaust inlet 109. Specifically, since the first filter 600, which filters PM2.5 particles, requires higher filtration precision, the pore size of its filter material can be smaller and thicker than that of the second filter 700. Therefore, it can be arranged vertically to avoid occupying the space required for assembling the heat exchange unit 500 on the first mating surface 505. The second filter 700 is thinner than the first filter 600, and therefore, it is disposed on the second mating surface 506 to reduce the pressure loss of the return air input through the exhaust inlet 109. It should be understood that the embodiments of this invention are not limited thereto.

[0096] For example, the first filter screen 600 and the second filter screen 700 also use the same filter screen.

[0097] For example, the first filter screen 600 and the second filter screen 700 can also be installed in the same way, that is, both are set in the vertical direction, or they are set on the first bonding surface 505 and the second bonding surface 506 respectively.

[0098] like Figure 7 As shown, the drive component 400 housing structure is used to house the drive component 400.

[0099] The drive assembly 400 includes fan blades 401 and a motor 402 that drives the fan blades 401. In this embodiment, the fan blades 401 are centrifugal single-sided intake fan blades 401. The airflow after heat exchange is drawn away and discharged by the centrifugal single-sided intake fan blades 401, reducing the pressure loss in the air duct. In addition, since the airflow does not pass through the motor 402, it prevents the motor 402 from heating up and affecting the airflow temperature, thereby ensuring heat exchange efficiency. The motor 402 is fixed to the frame 100 and housed in the motor housing structure 301 described below. In this embodiment, the motor 402 is fixed to the bottom surface of the frame 100 by a motor support frame (not shown).

[0100] The drive assembly 400 housing structure includes: a fan blade housing structure 201 and a motor housing structure 301.

[0101] The fan blade receiving structure 201 is located on the upstream side near the exhaust outlet 108 and the air supply outlet 110 and near the top surface 111 of the frame 100, and is used to receive the fan blade 401.

[0102] The motor housing structure 301 is located upstream of both the exhaust outlet 108 and the air supply outlet 110, and near the bottom surface of the frame 100, below the fan blade housing structure 201, for housing the motor 402. The motor housing structure 301 includes an inner hollow structure 3011 protruding from the outside of the frame 100 into the frame 100, an outer hollow structure 3012 located outside the inner hollow structure 3011, and a settling structure 3013 located between the outer hollow structure 3012 and the inner hollow structure 3011. The settling structure 3013 is a bowl-shaped structure that sinks from the outer hollow structure 3012 into the inner hollow structure 3011, with the bowl opening facing the outer hollow structure 3012 and the bowl bottom facing the inner hollow structure 3011. The motor 402 can pass through the settling structure 3013 and connect to the fan blade 401. The settling structure 3013 can effectively increase the minimum gap between itself and the edge of the fan blade 401, reducing the risk of interference between the motor housing structure 301 and the fan blade 401.

[0103] like Figure 8 As shown, a water storage tank is located on the upstream side of the heat exchange unit 500 and has a recessed structure from the inside of the frame 100 to the outside of the frame 100. It is used to store the water extracted by the heat exchange unit 500.

[0104] The water storage tank includes a first water storage tank 303 and / or a second water storage tank 305. The first water storage tank 303 is located upstream of the first mating surface 505. Further, the first water storage tank 303 is located between the first filter screen 600 and the first mating surface 505. The second water storage tank 305 is located upstream of the second mating surface 506. Further, the second water storage tank 305 is located upstream of the second filter screen 700. That is, the first water storage tank 303 and the second water storage tank 305 are respectively located on both sides of the heat exchange unit 500.

[0105] The first water storage tank 303 includes a first water-retaining wall 3031 and a second water-retaining wall 3032. The first water-retaining wall 3031 is connected to the second mating portion 502 and has an inclined surface extending from the second mating surface 506 toward the bottom surface of the frame 100. The second water-retaining wall 3032 is connected to the second groove 302 and has an inclined surface extending toward the bottom surface.

[0106] The second water storage tank 305 includes a third water-retaining wall 3051 and a surrounding wall 3052. The third water-retaining wall 3051 is an inclined surface connected to the second slot 307 and extending in the direction toward the bottom surface. The surrounding wall 3052 is formed by the outer wall of the outer hollow structure 3012 of the motor housing structure 301 near the air outlet 110.

[0107] When the heat exchange device operates in heat exchange mode, the air in the first space and the air in the second space exchange heat in the heat exchange unit 500. Due to the temperature difference between the two air streams, condensation may occur in the heat exchange unit 500, which will then drip into the water storage tank. For example, in winter, when the outdoor air temperature drops below zero, the large temperature difference between indoors and outdoors makes the condensation phenomenon more pronounced.

[0108] When the heat exchange device is in ventilation mode, the air in the second space passes through the air inlet 107, the heat exchange unit 500, and is discharged from the air outlet 110. For example, in a high-humidity outdoor environment, especially during the humid season in the south, the high-humidity air entering the heat exchange unit 500 will absorb moisture due to the material of the heat exchange unit 500. When the moisture accumulates to a certain level, it will drip into the water storage tank.

[0109] In this embodiment, the first side ventilation duct shell 206, the fan blade receiving structure 201, the first groove 202, the third fixing part 203, the first fixing part 204, and the fourth fixing part 205 can be integrally formed, defined as the first shell 200; the second side ventilation duct shell 306, the motor receiving structure 301, the second groove 302, the first water storage tank 303, the second fixing part 304, and the second water storage tank 305 can be integrally formed, defined as the second shell 300. The mating connection between the first shell 200 and the second shell 300 can be designed and adjusted according to the structure and shape of the components to be accommodated. When accommodating components, they can be fixed only by limiting fit, without the need for fixing with screws or other fasteners. The first shell 200 is close to the top surface 111 and far from the bottom surface, and the second shell 300 is close to the bottom surface and far from the top surface 111. That is, from Figure 2 The top surface 111, the first shell 200, the second shell 300, and the bottom surface sequentially form a clamping structure. The frame 100 surrounds the first shell 200 and the second shell 300, making the connection between them more stable. The first shell 200 and the second shell 300 can be foamed liners made of foamed material, such as EPS (Expanded Polystyrene). Foamed liners can improve the heat exchanger's insulation and soundproofing effects, increase heat exchange efficiency, reduce the possibility of condensation, and save on the amount of insulation cotton required.

[0110] The embodiments of this utility model have now been described in detail with reference to the accompanying drawings. Based on the above description, those skilled in the art should have a clear understanding of this utility model.

[0111] It should be noted that implementations not shown or described in the accompanying drawings or the main text of the specification are all forms known to those skilled in the art and are not described in detail. Furthermore, the definitions of the components described above are not limited to the specific structures and shapes mentioned in the embodiments, and those skilled in the art can easily modify or substitute them.

[0112] The above specific embodiments further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above are only specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A heat exchange device, comprising: The frame forms an outline and is box-shaped, including a top surface and a bottom surface opposite to the top surface; A heat exchange housing structure is provided within the frame to house the heat exchange unit; The heat exchange unit includes: a first bonding portion disposed near the top surface and away from the bottom surface; a second bonding portion disposed near the bottom surface and away from the top surface; a third bonding portion disposed between the top surface and the bottom surface; and a fourth bonding portion disposed between the top surface and the bottom surface. The first bonding portion and the second bonding portion are disposed opposite to each other. The heat exchange housing structure includes a first fixing part, a second fixing part, a third fixing part, and a fourth fixing part. The first fixing part, the second fixing part, the third fixing part, and the fourth fixing part are at least partially in contact with the first fitting part, the second fitting part, the third fitting part, and the fourth fitting part, respectively. The first fixing part is located between the top surface and the first fitting part; the second fixing part is located between the bottom surface and the second fitting part. The first fixing part, the third fixing part, and the fourth fixing part are integrally formed structures.

2. The heat exchange device according to claim 1, characterized in that, The first fitting portion includes an upper edge, and the first fixing portion is at least partially fitted with the upper edge; The second fitting portion includes a lower edge, and the second fixing portion is at least partially fitted with the lower edge; The third fitting part includes a first side angle, and the third fixing part is at least partially fitted with the first side angle; The fourth fitting part includes a second side angle, and the fourth fixing part is at least partially fitted with the second side angle.

3. The heat exchange device according to claim 2, characterized in that, The first fixing part is completely fitted with the upper edge.

4. The heat exchange device according to claim 2, characterized in that, The second fixing part is completely fitted with the lower edge.

5. The heat exchange device according to claim 2, characterized in that, The third fixing part is completely fitted to the first side corner, and the third fixing part is in the shape of "<".

6. The heat exchange device according to claim 2, characterized in that, The fourth fixing part is completely fitted with the second side corner, and the fourth fixing part is in the shape of ">".

7. The heat exchange device according to any one of claims 2 to 6, characterized in that, The heat exchange unit is a hexagonal prism; The first bonding portion further includes a first connecting surface, which connects the two upper corners; The first fixing part is in contact with the first connecting surface; The second fitting portion further includes a second connecting surface, which connects the two lower corners; The second fixing part is in contact with the second connecting surface.

8. The heat exchange device according to any one of claims 2 to 6, characterized in that, The heat exchange unit is a square prism; The first fixing part is in the shape of "∧", and the second fixing part is in the shape of "∨".

9. The heat exchange device according to claim 1, characterized in that, The heat exchange device further includes: The water storage tank is located upstream of the heat exchange unit and has a recessed structure extending from inside the frame to outside the frame.

10. The heat exchange device according to claim 9, characterized in that, The heat exchange unit also includes: The first bonding surface is a surface formed by extending the third bonding portion toward the second bonding portion. The second bonding surface is a surface formed by extending the fourth bonding portion toward the second bonding portion; The water storage tank includes: First water storage tank or / and second water storage tank; The first water storage tank is located on the upstream side of the first mating surface; The second water storage tank is located on the upstream side of the second mating surface.

11. The heat exchange device according to claim 10, characterized in that, The first water storage tank includes: The first water-blocking wall is connected to the second fitting part and is an inclined surface extending from the second fitting surface toward the bottom surface of the frame.

12. The heat exchange device according to claim 10, characterized in that, The heat exchange device further includes a first filter screen receiving structure for receiving the first filter screen; The first filter screen housing structure includes: The first groove is connected to the third fixing part and has a structure that is recessed from the bottom surface to the top surface; The second groove is arranged opposite to the first groove and has a recessed structure from the top surface to the bottom surface. The first filter screen is disposed between the first groove and the second groove.

13. The heat exchange device according to claim 12, characterized in that, The first water storage tank also includes: The second water-retaining wall is connected to the second groove and is an inclined surface extending toward the bottom surface.

14. The heat exchange device according to claim 10, characterized in that, The heat exchange device further includes a second filter screen receiving structure for accommodating the second filter screen; The second filter screen is parallel to the second bonding surface; The second filter screen receiving structure includes: The first slot is connected to the fourth fixing part and has a structure that extends vertically from the fourth fixing part toward the bottom surface. The second slot is connected to the second fixing part and has a structure formed by being recessed from the fourth fixing part toward the second fixing part; The second filter screen is located between the first slot and the second slot.

15. The heat exchange device according to claim 14, characterized in that, The second water storage tank includes: The third water-retaining wall is connected to the second slot and has an inclined surface extending from the direction toward the bottom surface.

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