Air path switcher and heat exchange device using the same

Abstract

The utility model provides a kind of air path switch and the heat exchange device of application, air path switch includes: installation cylinder, the first air outlet and second air outlet of the installation cylinder are sequentially provided with for air flow to blow out the installation cylinder along circumference, and wind wall that blocks air flow to blow out the installation cylinder;Rotary assembly is located in the installation cylinder, and rotates around the center axis of the installation cylinder, and the rotary assembly is equipped with shielding part;Driving assembly is used to drive the rotary assembly to rotate in the installation cylinder, to make the shielding part move between the first air outlet, the second air outlet, the wind wall.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, and in particular to a heat exchange device for a wind path switcher and its application. Background Technology

[0002] Airflow switchers are typically installed in ventilation equipment, such as heat exchangers. They are used to change the airflow path to achieve various operating modes and meet the needs of different living scenarios.

[0003] Existing airflow switchers are generally plate-shaped structures that rotate along an axis to switch between two different airflow paths or to open / close airflow paths. However, to achieve switching between multiple airflow paths, or to switch and turn airflow paths on and off, multiple airflow switchers must be used. Multiple airflow switchers not only increase costs but also occupy internal space when installed in ventilation equipment, leading to a larger overall size. Furthermore, the interaction between multiple airflow switchers and components makes the ventilation equipment structure more complex, affecting sealing and causing performance degradation. Utility Model Content

[0004] In view of the above-mentioned technical problems, this utility model provides an air path switcher that can realize air path switching and air path on / off, thereby simplifying the internal structure of the heat exchange device, keeping the volume of the heat exchange device unchanged, and ensuring sealing and heat exchange efficiency.

[0005] This utility model provides a heat exchange device, comprising: a mounting cylinder, wherein the mounting cylinder is provided with a first air outlet and a second air outlet for airflow to exit the mounting cylinder in a circumferential direction, and a windproof wall for blocking the airflow from exiting the mounting cylinder; a rotating assembly disposed inside the mounting cylinder and rotating around the central axis of the mounting cylinder, the rotating assembly having a shielding part; and a driving assembly for driving the rotating assembly to rotate in the mounting cylinder, so that the shielding part moves between the first air outlet, the second air outlet, and the windproof wall.

[0006] According to an embodiment of the present invention, the rotating assembly further includes an airflow switching port; when the airflow switching port faces the first air outlet, the shielding portion shields the second air outlet; and / or, when the airflow switching port faces the second air outlet, the shielding portion shields the first air outlet; and / or, when the airflow switching port faces the windbreak wall, the shielding portion shields both the first and second air outlets.

[0007] According to an embodiment of the present invention, the airflow switcher includes: a positioning component disposed on the mounting cylinder, used to position the shielding portion at the first air outlet and / or the second air outlet and / or the windbreak wall.

[0008] According to an embodiment of the present invention, the positioning component includes a first positioning part and a second positioning part, wherein the first positioning part and the second positioning part are respectively disposed on either side of the first air outlet, the second air outlet and the windbreak wall in the direction of the windbreak wall.

[0009] According to an embodiment of the present invention, the rotating component further includes: a protrusion connected to the driving component; and the positioning component disposed on the outer periphery of the protrusion.

[0010] According to an embodiment of the present invention, the positioning component is a micro switch, and the micro switch is provided with a spring sheet; the protrusion includes: an engaging structure, which is provided on the inner peripheral side of the protrusion and recessed from the inner peripheral side of the protrusion toward the central axis to accommodate the spring sheet; and an abutting structure, which is provided on the outer peripheral side of the protrusion and abuts against the spring sheet.

[0011] According to an embodiment of the present invention, the first positioning part is a first micro switch, and a first spring sheet is disposed on the first micro switch; the second positioning part is a second micro switch, and a second spring sheet is disposed on the second micro switch; the engaging structure includes a first engaging structure and a second engaging structure, the first engaging structure accommodating one of the first spring sheet and the second spring sheet, and the second engaging structure accommodating the other of the first spring sheet and the second spring sheet.

[0012] According to an embodiment of this utility model, when the airflow switching port faces the first air outlet, the first spring sheet is embedded in the first engaging structure, and the second spring sheet is embedded in the second engaging structure. When the airflow switching port faces the second air outlet, the first spring sheet is embedded in the second engaging structure, and the second spring sheet abuts against the abutting structure. When the airflow switching port faces the windbreak wall, the first spring sheet abuts against the abutting structure, and the second spring sheet is embedded in the first engaging structure.

[0013] According to an embodiment of the present invention, the rotating assembly further includes: an air inlet for airflow to enter the rotating assembly; and an air guide extending from the air inlet to the air path switching port.

[0014] According to an embodiment of the present invention, the air guide is inclined and extends from the air path switching port to the air inlet on the opposite side of the air path switching port.

[0015] According to an embodiment of the present invention, the first air outlet, the second air outlet, and the windbreak wall are all disposed on the side of the mounting cylinder; the rotating component is cylindrical, and the air path switching port is disposed on the side of the rotating component.

[0016] According to an embodiment of the present invention, the airflow switcher further includes: at least two sealing elements, the sealing elements being disposed on the outer wall surface of the rotating assembly, the mounting cylinder extending axially and abutting against the inner wall surface of the mounting cylinder, and the at least two sealing elements being arranged on both circumferential sides of the airflow switching port.

[0017] According to an embodiment of the present invention, the rotating assembly further includes: a receiving portion formed on the outer wall surface of the rotating assembly for receiving the sealing element; the mounting cylinder further includes: a rib formed on the inner wall surface of the mounting cylinder for contacting the sealing element.

[0018] According to an embodiment of the present invention, the aforementioned ribs include: at least two first ribs, each located on both sides of the first air outlet along the circumference of the mounting cylinder; at least two second ribs, each located on both sides of the second air outlet along the circumference of the mounting cylinder; and at least two third ribs, spaced apart along the circumference of the mounting cylinder on the windbreak wall.

[0019] According to an embodiment of the present invention, when the air path switching port faces the first air outlet, the sealing member contacts the first rib; when the air path switching port faces the second air outlet, the sealing member contacts the second rib; and when the air path switching port faces the windbreak wall, the sealing member contacts the third rib.

[0020] According to an embodiment of the present invention, the receiving portion consists of two strip-shaped structures extending from the top surface of the rotating assembly to the bottom surface of the rotating assembly and protruding relative to the outer wall surface of the mounting cylinder, so as to form a groove between the two strip-shaped structures to accommodate the sealing member; the rib is a strip-shaped structure extending from the top surface of the mounting cylinder to the bottom surface of the mounting cylinder and protruding relative to the inner wall surface of the mounting cylinder.

[0021] This utility model also provides a heat exchange device, comprising: a housing; an air inlet disposed on the housing for supplying air from a first space into the housing; an air outlet disposed on the housing for supplying air entering the housing to be blown out to a second space; an air supply path connecting the air inlet and the air outlet; an exhaust outlet disposed on the housing for supplying air entering the housing to be blown out to the first space; an external circulation path connecting the air inlet and the exhaust outlet; and an air path switch disposed within the housing.

[0022] According to an embodiment of the present invention, the air path switcher is located downstream of the air supply inlet and is used to close or switch the air supply path and the external circulation path.

[0023] According to an embodiment of the present invention, when the air path switching port faces the first air outlet, the air supply air path is connected; when the air path switching port faces the second air outlet, the external circulation air path is connected; when the air path switching port faces the windbreak wall, the air supply air path and the external circulation air path are closed.

[0024] As can be seen from the above technical solution, the airflow switch of this utility model has at least the following beneficial effects:

[0025] (1) The mounting cylinder includes a first air outlet and a second air outlet for airflow, as well as a baffle wall to block the airflow; the rotating assembly is provided with a baffle. This allows the baffle to move between the first air outlet, the second air outlet, and the baffle wall when the rotating assembly rotates. This allows the airflow to exit through the first air outlet or the second air outlet, or to close the airflow path. This achieves airflow path switching and on / off functionality.

[0026] (2) Since the air path switcher includes a seal and the mounting cylinder includes a rib, when the rotating component rotates inside the mounting cylinder and the air path switching port is located at the first air outlet, the second air outlet, or the windproof wall, its seal can be interference-fitted with any set of ribs to ensure sealing. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a perspective view of the airflow switcher according to an embodiment of the present utility model;

[0029] Figure 2 This is a cross-sectional view of the airflow switch according to an embodiment of the present utility model;

[0030] Figure 3 This is a perspective view of the rotating component according to an embodiment of the present utility model;

[0031] Figure 4 This is a cross-sectional view of the rotating component according to an embodiment of the present utility model;

[0032] Figure 5 This is a perspective view of the mounting cylinder according to an embodiment of the present utility model;

[0033] Figure 6 This is a cross-sectional view of the mounting cylinder according to an embodiment of the present utility model;

[0034] Figure 7A perspective view of the first state of the airflow switcher according to an embodiment of the present utility model;

[0035] Figure 8 This is a perspective view of the first state of the airflow switcher according to an embodiment of the present invention from another angle.

[0036] Figure 9 This is a diagram showing the engagement of the drive assembly and the rotating assembly in the first state of the airflow switcher according to an embodiment of the present invention.

[0037] Figure 10 A perspective view of the second state of the airflow switch according to an embodiment of the present utility model;

[0038] Figure 11 This is a perspective view of the second state of the airflow switcher according to an embodiment of the present invention;

[0039] Figure 12 This is a diagram showing the engagement of the drive assembly and the rotating assembly in the second state of the airflow switch according to an embodiment of the present invention.

[0040] Figure 13 This is a perspective view of the third state of the airflow switcher according to an embodiment of the present utility model;

[0041] Figure 14 This is a perspective view of the third state of the airflow switch according to an embodiment of the present invention.

[0042] Figure 15 This is a diagram showing the engagement of the drive assembly and the rotating assembly in the third state of the airflow switch according to an embodiment of the present invention.

[0043] Figure 16 This is a diagram of the airflow path of the heat exchange device when the airflow switcher is in the third state according to an embodiment of the present invention.

[0044] Figure 17 This is a diagram of the airflow path of the heat exchange device when the airflow switcher is in the first state according to an embodiment of the present invention.

[0045] Figure 18 This is a diagram of the airflow path of the heat exchange device when the airflow switcher is in the second state according to an embodiment of the present invention.

[0046] Figure 19 This is a diagram of the airflow path of the heat exchange device when the airflow switcher is in the third state according to an embodiment of the present invention.

[0047] Figure Labels

[0048] 100. Airflow switch; 101. Mounting cylinder; 1011. First air outlet; 1012. Second air outlet; 1013. Windbreak wall; 1014. Through opening; 1015. Receiving opening; 1016. Mounting part; 1017. Rib; 10171. First rib; 10172. Second rib; 10173. Third rib; 102. Rotating assembly; 1021. Airflow switching port; 1022. Protrusion; 10221. First 10222, Second engaging structure; 10223, Abutting structure; 1023, Air inlet; 1024, Air guide; 1025, Insertion part; 1026, Blocking part; 1207, Receiving part; 103, Gear motor; 104, Positioning assembly; 1041, First micro switch; 10411, First spring plate; 1042, Second micro switch; 10421, Second spring plate; 105, Pressure ring; 106, Seal;

[0049] 200. Housing; 201. Air inlet; 202. Air outlet; 203. Air supply path; 204. Exhaust outlet; 205. Exhaust inlet; 206. External circulation path; 207. First side; 208. Second side; 209. Exhaust path; 2010. Internal circulation path;

[0050] 300. Heat exchange unit;

[0051] 400. Heat exchange device; 401. Heat exchange unit; 4011. First heat exchanger; 4012. Second heat exchanger; 4013. Compressor;

[0052] 500. Filter screen. Detailed Implementation

[0053] 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 a part of the embodiments of this utility model, not all of them. 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.

[0054] In the description of this utility model, it should be noted that the terms "vertical," "horizontal," "left," "right," "upper," "lower," "front," "rear," and similar expressions are for illustrative purposes only and do not represent the only possible embodiments. Furthermore, in the following description, the directional terms "upstream side" and "downstream side" are defined with reference to the direction of air flow within the heat exchange device.

[0055] 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.

[0056] Furthermore, 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.

[0057] The following is combined Figures 1 to 15 The structure of the air path switcher according to an embodiment of this utility model will be described in detail.

[0058] like Figures 1 to 15 As shown, this utility model provides a wind path switcher 100, including: a mounting cylinder 101, a rotating component 102, a driving component, and a positioning component 104.

[0059] The mounting cylinder 101 is cylindrical, having a top surface and a bottom surface opposite each other along the axial direction, and a side surface located between the top and bottom surfaces. The side surface of the mounting cylinder 101 includes an outer wall surface and an inner wall surface. The inner wall surface faces the rotating assembly 102, and the outer wall surface is the opposite side of the inner wall surface. Furthermore, to enhance the robustness of the mounting cylinder 101, reinforcing ribs are provided on the outer wall surface.

[0060] The mounting cylinder 101 includes a first air outlet 1011, a second air outlet 1012, and a windproof wall 1013. The first air outlet 1011 and the second air outlet 1012 allow airflow to exit the mounting cylinder 101, while the windproof wall 1013 blocks the airflow from exiting the mounting cylinder 101. The first air outlet 1011, the second air outlet 1012, and the windproof wall 1013 are all located on the side of the mounting cylinder 101. Specifically, from the bottom surface of the mounting cylinder 101 towards the top surface, the side of the mounting cylinder 101 is divided into three areas of equal area. The first air outlet 1011, the second air outlet 1012, and the windproof wall 1013 are distributed in the three areas respectively, that is, the windproof wall 1013, the first air outlet 1011, and the second air outlet 1012 are arranged adjacent to each other. The first air outlet 1011 and the second air outlet 1012 are openings extending from the top surface of the mounting cylinder 101 towards the bottom surface of the mounting cylinder 101. The openings have rounded edges near the bottom surface of the mounting cylinder 101, and the first air outlet 1011 and the second air outlet 1012 have the same shape. The windbreak wall 1013 can be understood as the wall surface on the side of the mounting cylinder 101.

[0061] The mounting cylinder 101 also includes: a through port 1014, a receiving port 1015, and a mounting part 1016.

[0062] The through-hole 1014 is a circular opening located at the center of the bottom surface of the mounting cylinder 101. The through-hole 1014 allows the protrusion 1022 to pass through.

[0063] A receiving opening 1015 is provided on the top surface of the mounting cylinder 101, through which the rotating component 102 described below can be installed inside the mounting cylinder 101. Specifically, the receiving opening 1015 can be a circular opening on the top surface of the mounting cylinder 101, so that the rotating component 102 can be installed inside the mounting cylinder 101.

[0064] The mounting part 1016 is provided on the bottom surface of the mounting cylinder 101 near the side and is arranged around the through opening 1014, forming a groove that is recessed from the top surface of the mounting cylinder 101 toward the bottom surface.

[0065] A rotating assembly 102 is disposed within a mounting cylinder 101 and rotates around the central axis of the mounting cylinder 101. The rotating assembly 102 is provided with a shielding portion 1026. In this embodiment, the rotating assembly 102 is cylindrical, formed by a top surface, a bottom surface, and a side surface. The shielding portion 1026 can be part of the side surface. The side surface of the rotating assembly 102 includes an outer wall surface and an inner wall surface. The outer wall surface faces the inner wall surface of the mounting cylinder 101, and the inner wall surface faces the outer wall surface. The volume of the rotating assembly 102 is slightly smaller than that of the mounting cylinder 101 so that the rotating assembly 102 can be installed inside the mounting cylinder 101, that is, the outer wall surface of the rotating assembly 102 faces the inner wall surface of the mounting cylinder 101. The rotating assembly 102 and the mounting cylinder 101 are coaxially arranged. Specifically, the central axis of the rotating component 102 coincides with the central axis of the mounting cylinder 101, and the rotating component 102 can rotate around the central axis within the mounting cylinder 101.

[0066] In other possible embodiments, the rotating assembly 102 may be formed by a blocking portion 1026 and a connecting portion connected to the blocking portion 1026. The blocking portion 1026 is an arcuate surface close to the side of the mounting cylinder 101, and the connecting portion is a plane close to the bottom surface of the mounting cylinder 101. Specifically, the plane may be fan-shaped, and the position where the blocking portion 1026 and the connecting portion are connected is the arcuate edge of the fan shape. The corner corresponding to the arcuate edge of the fan shape coincides with the axis of the mounting cylinder 101, so that the rotating assembly 102 can rotate around the central axis of the mounting cylinder 101.

[0067] The rotating assembly 102 also includes: an air path switching port 1021, a protrusion 1022, an air inlet 1023, an air guide 1024, and an insertion part 1025.

[0068] An airflow switching port 1021 is located on the side of the rotating assembly 102. The airflow switching port 1021 is an opening extending from the top surface of the rotating assembly 102 towards the bottom surface of the rotating assembly 102, with a rounded edge near the bottom surface of the mounting cylinder 101. Furthermore, the airflow switching port 1021 has the same shape as the first air outlet 1011 and the second air outlet 1012.

[0069] A protrusion 1022 passes through the through-hole 1014 and is connected to the drive assembly. The protrusion 1022 includes an engaging structure and an abutting structure 10223. The engaging structure is located on the inner circumferential side of the protrusion 1022 and is recessed from the inner circumferential side towards the central axis to accommodate the spring sheet of the micro switch. The engaging structure includes a first engaging structure 10221 and a second engaging structure 10222. The first engaging structure 10221 can accommodate one of the first spring sheet 10411 and the second spring sheet 10421, and the second engaging structure 10222 can accommodate the other of the first spring sheet 10411 and the second spring sheet 10421. The abutting structure 10223 is located on the outer circumferential side of the protrusion 1022 and abuts against the spring sheet. Specifically, the abutting structure 10223 can be a wall surface of the protrusion 1022.

[0070] An air inlet 1023 is located on the top surface of the rotating assembly 102 and has a circular opening, allowing airflow to enter the rotating assembly 102. When the rotating assembly 102 is installed on the mounting cylinder 101, the air inlet 1023 is located on the inner circumference of the receiving port 1015.

[0071] An air guide section 1024 is disposed on the inner wall surface of the rotating assembly 102, extending from the air inlet 1023 to the air path switching port 1021. The air guide section 1024 is inclined, extending from the air path switching port 1021 to the air inlet 1023 on the opposite side of the air path switching port 1021. Furthermore, in order to make the air path smoother, the air guide section 1024 is an arc surface in this embodiment.

[0072] The insertion part 1025 is provided on the bottom surface of the rotating assembly 102 near the side and is provided around the protrusion 1022. It is a groove protruding from the top surface of the rotating assembly 102 toward the bottom surface and is installed in the mounting part 1016.

[0073] A drive assembly is used to drive the rotating assembly 102 to rotate within the mounting cylinder 101, so that the shielding part 1026 moves between the first air outlet 1011, the second air outlet 1012, and the windbreak wall 1013. The drive assembly is located on the outer wall surface of the bottom surface of the mounting cylinder 101.

[0074] The drive assembly includes a gear motor 103. The gear motor 103 is fixed in the opposite direction to the through opening 1014 and includes a rotating shaft that is inserted into the protrusion 1022 so that when the gear motor 103 is running, the rotating shaft drives the protrusion 1022 to rotate, thereby causing the rotating assembly 102 to rotate in the mounting cylinder 101.

[0075] A positioning component 104 is disposed on the mounting cylinder 101 and is used to position the shielding portion 1026 at the first air outlet 1011 and / or the second air outlet 1012 and / or the windbreak wall 1013. Further, the positioning component 104 is disposed on the outer peripheral side of the protrusion 1022. Specifically, the positioning component 104 can be disposed on the inner wall surface of the bottom surface of the mounting cylinder 101 or on the outer wall surface of the bottom surface of the mounting cylinder 101.

[0076] The positioning component 104 includes a first positioning part and a second positioning part. The first positioning part and the second positioning part are respectively disposed on either side of the direction in which the first air outlet 1011, the second air outlet 1012, and the windbreak wall 1013 are located. In this embodiment, the first positioning part is disposed on one side of the direction in which the windbreak wall 1013 is located, and the second positioning part is disposed on one side of the direction in which the second air outlet 1012 is located.

[0077] In other alternative embodiments, the positioning component 104 can be magnetically positioned. In this embodiment, the positioning component 104 is a micro switch, and the micro switch is provided with a spring sheet. The first positioning part is defined as the first micro switch 1041, and the first spring sheet 10411 is provided on the first micro switch 1041; the second positioning part is defined as the second micro switch 1042, and the second spring sheet 10421 is provided on the second micro switch 1042.

[0078] The airflow switch 100 also includes a pressure ring 105 and a seal 106.

[0079] A pressure ring 105 is disposed at the receiving opening 1015 for fixing the rotating assembly 102 inside the mounting cylinder 101. Specifically, the pressure ring 105 is an annular shape with grooves, from... Figure 2 As can be seen, the pressure ring 105 forms a clamping structure with the side of the mounting cylinder 101 near the receiving port 1015 and the side of the rotating component 102 near the air inlet 1023.

[0080] like Figure 16As shown, a seal 106 is disposed on the outer wall surface of the rotating assembly 102, and the mounting cylinder 101 extends axially and abuts against the inner wall surface of the mounting cylinder 101. At least two seals 106 are each arranged on both circumferential sides of the air duct switching port 1021. It can be understood that the seal 106 is disposed between the inner wall surface of the mounting cylinder 101 and the outer wall surface of the rotating assembly 102. Further, the inner wall surface of the mounting cylinder 101 is provided with a rib 1017 that can be interference-fitted with the seal 106. The rib 1017 is a strip-shaped structure extending from the top surface of the mounting cylinder 101 to the bottom surface of the mounting cylinder 101 and protruding relative to the inner wall surface of the mounting cylinder 101. The outer wall surface of the rotating assembly 102 is provided with a receiving portion 1207 that can accommodate the seal 106. The receiving portion 1207 is formed on the outer wall surface of the rotating assembly 102 and extends from the top surface of the rotating assembly 102 to the bottom surface of the rotating assembly 102. Two strip-shaped structures protrude relative to the outer wall surface of the rotating assembly 102 to form a groove between the two strip-shaped structures to accommodate the seal 106.

[0081] In this embodiment, at least two sealing elements 106 are provided, respectively located on both sides of the air duct switching port 1021. Correspondingly, the number of receiving portions 1207 corresponds to the number of sealing elements 106, that is, two. There are six ribs 1017, arranged in groups of two. Each group of ribs 1017 is equidistantly positioned on the inner wall surface of the mounting cylinder 101 for contact with the sealing elements. Further, the two ribs 1017 located on both sides of the first air outlet 1011 can be defined as the first ribs 10171, the two ribs 1017 located on both sides of the second air outlet 1012 can be defined as the second ribs 10172, and the two ribs 1017 located on both sides of the windbreak wall 1013 can be defined as the third ribs 10173. Specifically, when the rotating assembly 102 rotates inside the mounting cylinder 101, and the air duct switching port 1021 is located at the first air outlet 1011, the second air outlet 1012, or the windbreak wall 1013, its sealing element 106 can be interference-fitted with any set of protruding ribs 1017 to ensure sealing, as described in detail in the following specific rotation states.

[0082] The specific type of seal 106 is not limited here; it can be rubber, silicone or other elastic sealing materials, or it can be a material such as sponge.

[0083] The following describes the implementation of the air path switcher 100 according to an embodiment of the present invention.

[0084] The airflow switch 100 has three rotation states: the first state, the second state, and the third state.

[0085] Start the air path switch 100, run the gear motor 103, and the rotating component 102 rotates around the central axis of the mounting cylinder 101 under the drive of the rotating shaft of the gear motor 103.

[0086] When the airflow switcher 100 is in the first state, the airflow switching port 1021 faces the first air outlet 1011, and the shielding part 1026 shields the second air outlet 1012. At this time, the first spring plate 10411 is embedded in the first engaging structure 10221, and the second spring plate 10421 is embedded in the second engaging structure 10222. The sealing member 106 is press-fitted with the first rib 10171 (i.e., the sealing member 106 is in contact with the first rib 10171). Since the air guide part 1024 is an arc surface extending from the airflow switching port 1021 to the air inlet 1023 on the opposite side of the airflow switching port 1021, the airflow can smoothly enter from the air inlet 1023 to the airflow switching port 1021, and when the airflow switching port 1021 is located at the first air outlet 1011, the airflow can smoothly flow out from the first air outlet 1011. When the airflow is strong, some of the airflow will flow around along the gap between the airflow switching port 1021 and the first air outlet 1011. A sealing element 106 is provided between the inner wall of the mounting cylinder 101 and the outer wall of the rotating component 102, and first ribs 10171 are provided on both sides of the first air outlet 1011. The sealing element 106 and the first ribs 10171 are interference-fitted, so that the airflow will not flow out from the gap between the airflow switching port 1021 and the first air outlet 1011, thereby ensuring the airtightness.

[0087] When the airflow switcher 100 is in the second state, the airflow switching port 1021 faces the second air outlet 1012, and the outer wall of the rotating assembly 102 blocks the first air outlet 1011. The first spring plate 10411 is embedded in the second engaging structure 10222, and the second spring plate 10421 abuts against the contact structure 10223. The seal 106 is press-fitted with the second rib 10172 (i.e., the seal 106 is in contact with the second rib 10172). Since the air guide 1024 is an arc-shaped surface extending from the airflow switching port 1021 to the air inlet 1023 on the opposite side of the airflow switching port 1021, the airflow can smoothly enter from the air inlet 1023 to the airflow switching port 1021, and when the airflow switching port 1021 is located at the second air outlet 1012, the airflow can smoothly flow out from the second air outlet 1012. When the airflow is strong, some of the airflow will flow around along the gap between the airflow switching port 1021 and the second air outlet 1012. A sealing element 106 is provided between the inner wall of the mounting cylinder 101 and the outer wall of the rotating component 102, and second ribs 10172 are provided on both sides of the second air outlet 1012. The sealing element 106 and the second ribs 10172 are interference-fitted, so that the airflow will not flow out from the gap between the airflow switching port 1021 and the second air outlet 1012, thereby ensuring the airtightness.

[0088] When the airflow switcher 100 is in the third state, the airflow switching port 1021 faces the windbreak wall 1013, and the outer wall of the rotating assembly 102 blocks the first air outlet 1011 and the second air outlet 1012. The first spring plate 10411 abuts against the contact structure 10223, and the second spring plate 10421 is embedded in the first engaging structure 10221. The seal 106 is press-fitted with the third rib 10173 (i.e., the seal 106 is in contact with the third rib 10173). The airflow entering from the air inlet 1023 flows along the air guide 1024 to the airflow switching port 1021. Since the airflow switching port 1021 is located on the windbreak wall 1013, the airflow cannot flow out from the mounting cylinder 101, and the airflow will flow around along the gap between the airflow switching port 1021 and the windbreak wall 1013. A sealing element 106 is provided between the inner wall surface of the mounting cylinder 101 and the outer wall surface of the rotating component 102. A third rib 10173 is provided on both sides of the windbreak wall 1013. The sealing element 106 and the third rib 10173 are interference fit, so that no airflow flows into the air path switcher 100 when it is closed, thus ensuring the sealing performance.

[0089] According to an embodiment of the present invention, a heat exchange device 400 is provided, wherein the air path switcher 100 is applied to the heat exchange device 400.

[0090] The heat exchange device 400 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 400 can draw in air from either of the two spaces and then supply air to that space or to the other space. For example, the heat exchange device 400 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 400 is installed in the second space, but the heat exchange device 400 can also be installed in the second space or in any space other than the first and second spaces. In this embodiment, the first space is outdoors, and the second space is indoors.

[0091] like Figures 17 to 19 As shown, the heat exchange device 400 in this embodiment may include a housing 200, an air inlet 201, an air outlet 202, an exhaust inlet 205, an exhaust outlet 204, an air supply path 203, an exhaust path 209, an external circulation path 206, an internal circulation path 2010, and a heat exchange unit 300.

[0092] The shell 200 forms an outer contour and is box-shaped. The shell 200 may have six sidewalls, which may be a top surface, a bottom surface, and four side surfaces, with the top surface and bottom surface facing each other. The two opposite side surfaces are defined as the first side surface 207 and the second side surface 208.

[0093] An air inlet 201 is provided on the housing 200 to allow air from the first space to enter the housing 200. Specifically, the air inlet 201 is an opening that connects the interior of the housing 200 and the outside through a pipe to allow outdoor air to enter the interior of the housing 200.

[0094] An air outlet 202 is provided on the housing 200 and is used to supply air entering the housing 200 to blow out into the second space. Specifically, the air outlet 202 is an opening that connects the interior of the housing 200 and the room through a pipe, so that air inside the housing 200 can be blown out of the room.

[0095] An exhaust air inlet 205 is provided on the housing 200 to allow air from the second space to enter the housing 200. Specifically, the exhaust air inlet 205 is an opening that connects the interior of the housing 200 and the room through a pipe, so as to draw air from the room into the housing 200.

[0096] An exhaust vent 204 is provided on the housing 200 and is used to allow air entering the housing 200 to be blown out to the first space. Specifically, the exhaust vent 204 is an opening that connects the interior of the housing 200 and the exterior through a pipe, so that air inside the housing 200 can be blown out to the exterior.

[0097] The air inlet 201 and the exhaust outlet 204 can be located on the same side of the housing 200, while the air outlet 202 and the exhaust inlet 205 can be located on the opposite side of the housing 200. For example, the air inlet 201 and the exhaust outlet 204 can be located on the first side 207, and the air outlet 202 and the exhaust inlet 205 can be located on the second side 208. This utility model does not limit this.

[0098] The air supply passage 203 is located inside the housing 200. The air supply passage 203 is an air passage that connects the air supply inlet 201 and the air supply outlet 202, so that the air passing through the air supply passage 203 flows from the air supply inlet 201 to the air supply outlet 202.

[0099] The exhaust air passage 209 is located inside the housing 200. The exhaust air passage 209 is an air passage that connects the exhaust air inlet 205 and the exhaust air outlet 204, so that the air passing through the exhaust air passage 209 flows from the exhaust air inlet 205 to the exhaust air outlet 204.

[0100] The external circulation air passage 206 is located inside the housing 200. The external circulation air passage 206 is an air passage that connects the air supply inlet 201 and the exhaust outlet 204, so that the air passing through the external circulation air passage 206 flows from the air supply inlet 201 to the exhaust outlet 204.

[0101] The internal circulation air passage 2010 is located inside the housing 200. The internal circulation air passage 2010 is an air passage that connects the exhaust air inlet 205 and the air supply outlet 202, so that the air passing through the internal circulation air passage 2010 flows from the exhaust air inlet 205 to the air supply outlet 202.

[0102] The heat exchange unit 300 is used for the exchange of energy between the air supplied to the air passage 203 and the air in the exhaust air passage 209. The heat exchange unit 300 can consist of one heat exchange core or two or more heat exchange cores. The heat exchange core can be constructed by bonding multiple thin plates together, and different shapes of heat exchange cores can be used depending on the internal structure. For example, they can all be square prisms or hexagonal prisms. A filter screen is also included in the heat exchange unit 300.

[0103] The heat exchange device 400 also includes a heat exchange unit 401 and a compressor 4013, housed within the casing 200, for dehumidifying the air. The heat exchange unit 401 includes a first heat exchanger 4011 and a second heat exchanger 4012. The first heat exchanger 4011 is located on the supply air passage 203 or the external circulation air passage 206, and the second heat exchanger 4012 is located on the exhaust air passage 209 or the internal circulation air passage 2010. The first heat exchanger 4011 and the second heat exchanger 4012 are located in two separate, non-overlapping spaces. The first heat exchanger 4011 and the compressor 4013 are located in the same space. The heat exchange unit 401 can be an evaporator or a condenser. The air exchange unit and the compressor 4013 can be turned on or off depending on the operating mode of the heat exchange device 400.

[0104] The heat exchange device 400 also includes a control component, which is connected to the positioning component 104 and the drive component respectively, thereby controlling the operation of the positioning component 104 and the drive component. The control component can be a circuit board (not shown). Specifically, a micro switch is connected to the circuit board via leads, and a gear motor 103 is connected to the circuit board via leads. Feedback is sent to the circuit board based on the engagement of the spring plate of the micro switch with the engaging or abutting structure 10223, thereby controlling the operation and stop of the gear motor 103.

[0105] The following describes an embodiment in which the airflow switch 100 is applied to the heat exchange device 400.

[0106] The air path switcher 100 is located downstream of the air supply inlet 201 and is used to close the air supply inlet 201 or switch the air supply path 203 and the external circulation path 206.

[0107] like Figure 17As shown, when the heat exchange device 400 operates in heat exchange mode, the control component controls the gear motor 103 to run. Driven by the rotating shaft of the gear motor 103, the rotating component 102 rotates around the central axis of the mounting cylinder 101. When the first spring plate 10411 is embedded in the first engaging structure 10221 and the second spring plate 10421 is embedded in the second engaging structure 10222, the circuit board recognizes that the spring plates of the first micro switch 1041 and the second micro switch 1042 are in the open state, instructing the gear motor 103 to stop running. At this time, the air path switcher 100 is in the first state, that is, the air path switching port 1021 rotates to the first air outlet 1011, connecting to the supply air path 203. Simultaneously, the exhaust air path 209 is also connected. For example, the air supply path 203 formed by the air inlet 201 and the air outlet 202 can be used to introduce fresh outdoor air; correspondingly, the exhaust air path 209 formed by the exhaust inlet 205 and the exhaust outlet 204 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 300 and pass through each other, heat exchange between the fresh air and return air can be achieved. The heat exchange unit 401 and the compressor 4013 can be turned on or off according to the usage scenario. For example, when the outdoor air humidity is high, the heat exchange unit 401 and the compressor 4013 can be turned on to dehumidify the fresh air.

[0108] like Figure 18 As shown, when the heat exchange device 400 operates in dehumidification mode, the control component controls the gear motor 103 to operate. The rotating component 102 rotates around the central axis of the mounting cylinder 101 under the drive of the gear motor 103's rotating shaft. When the first spring plate 10411 is embedded in the second engaging structure 10222, and the second spring plate 10421 abuts against the contact structure 10223, the circuit board recognizes that the spring plate of the first micro switch 1041 is in the open state and the spring plate of the second micro switch 1042 is in the pressed state, instructing the gear motor 103 to stop operating. At this time, the air path switch 100 is in the second state, that is, the air path switch port 1021 rotates to the second air outlet 1012, connecting the external circulation air path 206. At this time, the first heat exchanger 4011 and compressor 4013 are turned on, allowing heat dissipation from the air in the external circulation air path 206. Simultaneously, the internal circulation air path 2010 is connected, and the second heat exchanger 4012 is turned on, allowing dehumidification of the indoor air.

[0109] like Figure 19As shown, when the heat exchange device 400 operates in internal circulation mode, the control component controls the gear motor 103 to run. The rotating component 102, driven by the rotating shaft of the gear motor 103, rotates around the central axis of the mounting cylinder 101. When the first spring plate 10411 abuts against the contact structure 10223, and the second spring plate 10421 is embedded in the first engaging structure 10221, the circuit board recognizes that the spring plate of the first micro switch 1041 is in a pressed state, and the spring plate of the second micro switch 1042 is in a released state, indicating that the gear motor 103 stops running. At this time, when the airflow switch 100 is in the third state, that is, the airflow switch port 1021 rotates to the windbreak wall 1013, closing the external circulation airflow 206. Simultaneously, the internal circulation airflow 2010 is connected. At this time, the condenser and compressor 4013 are shut down.

[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] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An air path switcher characterized by comprising: include: The mounting cylinder is provided with a first air outlet and a second air outlet along its circumference for airflow to exit the mounting cylinder, as well as a windproof wall to block airflow from exiting the mounting cylinder. A rotating component is disposed inside the mounting cylinder and rotates around the central axis of the mounting cylinder; the rotating component is provided with a shielding part. A drive assembly is used to drive the rotating assembly to rotate in the mounting cylinder so that the shielding part moves between the first air outlet, the second air outlet, and the windbreak wall.

2. The air path switcher according to claim 1, characterized by, The rotating assembly also includes an airflow switching port; When the air path switching port faces the first air outlet, the shielding part blocks the second air outlet; And / or, when the air path switching port faces the second air outlet, the shielding part blocks the first air outlet; And / or, when the air path switching port faces the windbreak wall, the shielding part blocks the first air outlet and the second air outlet.

3. The airflow switcher according to claim 2, characterized in that: The airflow switcher includes: A positioning component, disposed on the mounting cylinder, is used to position the shielding part at the first air outlet and / or the second air outlet and / or the windbreak wall.

4. The airflow switcher according to claim 3, characterized in that: The positioning component includes a first positioning part and a second positioning part. The first positioning part and the second positioning part are respectively located on either side of the first air outlet, the second air outlet and the windbreak wall in the direction of the windbreak wall.

5. The airflow switcher according to claim 4, characterized in that, The rotating assembly also includes: The protrusion is connected to the drive component; The positioning component is located on the outer periphery of the protrusion.

6. The airflow switcher according to claim 5, characterized in that, The positioning component is a micro switch, and the micro switch is equipped with a spring plate; The protrusion includes: A snap-fit ​​structure is provided on the inner peripheral side of the protrusion and is recessed from the inner peripheral side of the protrusion toward the central axis to accommodate the spring sheet; An abutting structure is provided on the outer periphery of the protrusion, abutting against the spring sheet.

7. The airflow switcher according to claim 6, characterized in that, The first positioning part is a first micro switch, and a first spring sheet is disposed on the first micro switch; the second positioning part is a second micro switch, and a second spring sheet is disposed on the second micro switch; The engaging structure includes a first engaging structure and a second engaging structure. The first engaging structure accommodates one of the first spring sheet and the second spring sheet, and the second engaging structure accommodates the other of the first spring sheet and the second spring sheet.

8. The airflow switcher according to claim 7, characterized in that, When the air path switching port faces the first air outlet, the first spring sheet is embedded in the first engaging structure, and the second spring sheet is embedded in the second engaging structure; When the air duct switching port faces the second air outlet, the first spring plate is embedded in the second engaging structure, and the second spring plate abuts against the abutting structure; When the airflow switching port faces the windbreak wall, the first spring sheet abuts against the contact structure, and the second spring sheet is embedded in the first engaging structure.

9. The airflow switcher according to claim 2, characterized in that, The rotating assembly further includes: An air inlet allows airflow to enter the rotating assembly. The air guide extends from the air inlet to the air path switching port.

10. The airflow switcher according to claim 9, characterized in that, The air guide section is inclined and extends from the air path switching port to the air inlet on the opposite side of the air path switching port.

11. The airflow switcher according to claim 2, characterized in that, The first air outlet, the second air outlet, and the windproof wall are all located on the side of the mounting cylinder; The rotating component is cylindrical, and the airflow switching port is located on the side of the rotating component.

12. The airflow switcher according to claim 11, characterized in that, The airflow switcher also includes: At least two seals are disposed on the outer wall surface of the rotating assembly, the mounting cylinder extends axially and abuts against the inner wall surface of the mounting cylinder, and the at least two seals are each arranged on both circumferential sides of the air duct switching port.

13. The airflow switcher according to claim 12, characterized in that, The rotating assembly further includes: A receiving portion is formed on the outer wall surface of the rotating assembly for accommodating the seal; The mounting cylinder further includes: The raised ribs are formed on the inner wall surface of the mounting cylinder and are used to contact the seal.

14. The airflow switcher according to claim 13, characterized in that, The protruding rib includes: At least two first convex ribs are located on both sides of the first air outlet along the circumference of the mounting cylinder; At least two second convex ribs are located on both sides of the second air outlet along the circumference of the mounting cylinder; At least two third convex ribs are located on the windbreak wall at circumferential intervals along the mounting cylinder.

15. The airflow switcher according to claim 14, characterized in that, When the air duct switching port faces the first air outlet, the sealing element contacts the first rib. When the air duct switching port faces the second air outlet, the sealing element contacts the second rib. When the air duct switching port faces the windbreak wall, the sealing element contacts the third convex rib.

16. The airflow switcher according to claim 15, characterized in that, The receiving portion consists of two strip-shaped structures extending from the top surface of the rotating assembly to the bottom surface of the rotating assembly and protruding relative to the outer wall surface of the mounting cylinder, so as to form a groove between the two strip-shaped structures to receive the sealing element; The rib is a strip-shaped structure that extends from the top surface of the mounting cylinder to the bottom surface of the mounting cylinder and protrudes relative to the inner wall surface of the mounting cylinder.

17. A heat exchange device, characterized by include: case; An air inlet is provided on the housing to allow air from the first space to enter the housing; An air outlet is provided on the housing to allow air entering the housing to be blown out into the second space; An air supply path connects the air supply inlet and the air supply outlet; An exhaust vent is provided on the housing to allow air entering the housing to be blown out into the first space; An external circulation air path connects the air inlet and the exhaust outlet; The airflow switch as described in any one of claims 1 to 16 is disposed within the housing.

18. The heat exchange device according to claim 17, characterized in that, The air path switcher is located downstream of the air supply inlet and is used to close or switch the air supply path and the external circulation path.

19. The heat exchange device according to claim 18, characterized in that, When the air path switching port of the air path switcher faces the first air outlet, the air supply air path is connected. When the air path switching port faces the second air outlet, the external circulation air path is connected; When the air path switching port faces the windbreak wall, the air supply air path and the external circulation air path are closed.

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