Integrated extractor hood system

Abstract

The present application relates to the technical field of kitchen appliances, in particular to an integrated range hood system. The integrated range hood system comprises: a heat exchange cavity of a shell, which comprises a first region and a second region which are independent of each other, a phase change evaporator is arranged in the first region, and a phase change condenser is arranged in the second region; an oil fume suction channel is located in the first region and is not in communication with the heat exchange cavity; a fresh air flow channel comprises a first flow section and a second flow section which are intersected in a flow direction; further comprising: a guide plate is arranged in the second region, the guide plate is arranged on an airflow flow path of the fresh air flow channel, and the guide plate is provided with a guide opening which can guide the fresh air flow channel to bend from the first flow section to form the second flow section. The guide plate and the guide opening arranged on the guide plate can form at least two flow circulation regions, so that the flow direction of the fresh air flow can be changed, so that the fresh air can be stirred and mixed, and the uniformity of the fresh air flow temperature can be improved.

Description

Technical Field

[0001] This invention relates to the field of kitchen appliance technology, and in particular to an integrated range hood system. Background Technology

[0002] Kitchens typically don't have fresh air systems installed, mainly because in winter, when cooking, the outdoor temperature is usually lower than the indoor temperature. Directly introducing outdoor air would cause the indoor temperature to drop, leading to discomfort. Kitchen air conditioners with fresh air functions require additional electric auxiliary heating to heat the fresh air, resulting in high energy consumption.

[0003] A phase change heat exchange device is employed, comprising an evaporator, a condenser, and a circulation pipe connecting the evaporator and the condenser, with a height difference between them. The evaporator utilizes the heat from the gas in the exhaust pipe to convert the refrigerant from a liquid state to a gaseous state, reducing the refrigerant's density, and then it enters the condenser through the circulation pipe. In the condenser, the refrigerant converts from a gaseous state to a liquid state, releasing heat and thus heating the surrounding air. Simultaneously, the refrigerant's density increases, and it re-enters the evaporator through the circulation pipe, thus completing the cycle.

[0004] The problem is that when fresh air enters the equipment, the airflow is not smooth, resulting in poor heat exchange efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a circulating connection component and a phase change heat exchange device, so as to solve to a certain extent the technical problem in the related technology that when fresh air enters the equipment, the flow of fresh air is poor, resulting in poor fresh air heat exchange efficiency.

[0006] This invention provides an integrated range hood system, comprising: a housing having a fume extraction channel, wherein the housing has a fume inlet and a fume outlet, both of which are in fluid communication with the fume extraction channel; the housing also has a heat exchange chamber, wherein the housing has a fresh air inlet for communication with the outside and an air outlet for communication with the inside, both of which are in fluid communication with the heat exchange chamber and form a fresh air flow channel; the heat exchange chamber includes a first region and a second region, wherein a phase change evaporator is disposed in the first region and a second region is disposed in the second region. A phase change condenser; a blower fan located in the second area with its outlet connected to the air outlet; an oil fume extraction duct located in the first area and not connected to the heat exchange chamber; in the height direction of the housing, the phase change condenser is higher than the phase change evaporator; the fresh air flow channel includes a first flow section and a second flow section with intersecting flow directions; further comprising: a guide plate located in the second area, the guide plate being arranged on the airflow path of the fresh air flow channel, and the guide plate having a guide opening that allows the fresh air flow channel to bend from the first flow section to form the second flow section.

[0007] Furthermore, the guide port is opened along the thickness direction of the guide plate and extends tangentially along the deflection path of the fresh air flow channel.

[0008] Furthermore, the air outlet is located on the front side of the housing, and the fresh air inlet is located on the top of the housing; the guide plate extends forward and backward as a whole, with the rear end of the guide plate close to the phase change condenser to form the windward end, and the front end of the guide plate opposite to the air inlet of the air supply fan.

[0009] Furthermore, the windward end of the deflector is positioned higher than the front end of the deflector, and the deflector is an arc-shaped structure that convexes backward.

[0010] Furthermore, the guide opening extends from the windward end of the guide plate towards the center of the guide plate and is able to cover the most concave part of the guide plate.

[0011] Furthermore, the fresh air duct also includes a third flow section whose flow direction intersects with both the flow direction of the first flow section and the flow direction of the second flow section; in the width direction of the guide plate, the guide port includes an air-guiding sidewall disposed opposite to the guide plate; in the extension direction of the guide plate, the guide port includes a flow-dividing sidewall located on the lower side; the third flow section is located on the upper side of the guide plate and downstream of the flow-dividing sidewall.

[0012] Furthermore, the guide plate is arranged in a flat shape.

[0013] Further, a first flow cavity and a second flow cavity which are isolated from each other are provided in the flow guide plate. Both the first flow cavity and the second flow cavity are connected between the phase change evaporator and the phase change condenser to enable the refrigerant to circulate between the phase change evaporator and the phase change condenser.

[0014] Further, in the thickness direction of the flow guide plate, the first flow cavity and the second flow cavity are arranged side by side; a first through port is provided on the flow guide plate to make the first flow cavity arranged in a "return" shape, and a second through port is provided on the flow guide plate to make the second flow cavity arranged in a "return" shape. The first through port and the second through port are connected to form the guiding port.

[0015] Further, the first through port and the second through port are arranged opposite to each other.

[0016] Further, fins are provided on the upper plate surface of the flow guide plate.

[0017] Compared with the prior art, the beneficial effects of the present invention mainly lie in:

[0018] The flow guide plate can guide the fresh air flow. During the process of the fresh air flow flowing along the flow guide plate, at least part of the fresh air flow flows along the first flow section of the upstream part on one side of the flow guide plate. When the fresh air flow reaches the guiding port, the fresh air flow can pass through the guiding port and bend to flow along the second flow section of the downstream part on the other side of the flow guide plate. Under the action of the flow guide plate, the fresh air can flow along the flow guide plate in at least two flow regions.

[0019] Overall, the flow guide plate guides the fresh air, enabling the fresh air to enter the room through the air supply port in a certain flow direction, avoiding the fresh air from being scattered and disorderly, achieving more efficient air circulation and distribution, improving the smoothness and uniformity of the air flow, thereby improving the heat recovery efficiency, further improving the heat exchange effect, avoiding a large temperature difference between the gas entering the room and the indoor temperature, and improving the user experience. On the other hand, the flow guide plate and the guiding port provided on the flow guide plate can form at least two flow regions, which can change the flow direction of the fresh air flow, so that the fresh air can be stirred and mixed, and the uniformity of the temperature of the fresh air flow can be improved.

[0020] It should be understood that both the foregoing general description and the following detailed description are for the purpose of illustration and example and are not necessarily restrictive of the present disclosure. The accompanying drawings incorporated in and constituting a part of the specification illustrate the subject matter of the present disclosure. At the same time, the specification and the drawings are used to explain the principles of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the integrated range hood system according to an embodiment of the present invention.

[0023] Figure 2 for Figure 1 A structural schematic diagram of the integrated range hood system from another perspective;

[0024] Figure 3 This is a schematic diagram of the structure of an integrated range hood system according to another embodiment of the present invention;

[0025] Figure 4 A partial structural schematic diagram of the integrated range hood system according to an embodiment of the present invention;

[0026] Figure 5 Another partial structural diagram of the integrated range hood system according to an embodiment of the present invention;

[0027] Figure 6 A schematic diagram of the baffle plate in the integrated range hood system of this invention.

[0028] icon:

[0029] 100 - Housing; 101 - First Zone; 102 - Second Zone; 103 - Fresh Air Inlet; 104 - Fume Extraction Duct;

[0030] 110 - Phase change evaporator;

[0031] 120 - Phase change condenser;

[0032] 130 - Air supply fan;

[0033] 140-Guide plate; 141-Guide port; 142-First flow cavity; 143-Second flow cavity; 144-Fin; 145-Upper plate surface; 146-Lower plate surface; 147-Windward end; 148-Injection port; 149-Induced air sidewall; 1410-Diverter sidewall;

[0034] 150 - First flow section;

[0035] 160 - Second flow section;

[0036] 170 - Third flow section. Detailed Implementation

[0037] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0038] The components of the embodiments of the invention described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0039] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0042] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0043] It should be noted that, in the embodiments of the present invention, "front" refers to the direction closer to the interior, and "rear" is the opposite direction to "front".

[0044] like Figures 1 to 6As shown, this embodiment of the invention provides an integrated range hood system, including: a housing 100 having a fume extraction channel 104, a fume inlet and a fume outlet on the housing 100, both of which are in fluid communication with the fume extraction channel 104; the housing 100 also has a heat exchange chamber inside, and a fresh air inlet 103 for communicating with the outside and an air outlet for communicating with the inside are provided on the housing 100, both of which are in fluid communication with the heat exchange chamber and form a fresh air flow channel; the heat exchange chamber includes a first region 101 and a second region 102 that are independent of each other, a phase change evaporator 110 is provided in the first region 101, and a phase change evaporator 110 is provided in the second region 102. The system includes a phase change condenser 120; a blower 130 located in the second region 102 with its outlet connected to the air supply port; an oil fume extraction duct 104 located in the first region 101 and not connected to the heat exchange chamber; the phase change condenser 120 is higher than the phase change evaporator 110 in the height direction of the shell 100; the fresh air flow channel includes a first flow section 150 and a second flow section 160 with intersecting flow directions; and a guide plate 140 located in the second region 102, the guide plate 140 being arranged on the airflow path of the fresh air flow channel, and the guide plate 140 having a guide port 141 that allows the fresh air flow channel to bend from the first flow section 150 to form the second flow section 160.

[0045] In this embodiment, the refrigerant changes from a liquid state to a gaseous state in the phase change evaporator 110, and the density of the refrigerant decreases, flowing towards the phase change condenser 120 located at a relatively high position; the refrigerant changes from a gaseous state to a liquid state in the phase change condenser 120, and the density of the refrigerant increases, flowing towards the phase change evaporator 110 located at a relatively low position, and the refrigerant circulates in this way.

[0046] The fume extraction duct 104 is located within the first zone 101. Kitchen fumes enter the outer casing through the fume inlet, then enter the fume extraction duct 104, and finally exit through the fume outlet into the kitchen fume duct hole. The high temperature of the fumes transfers heat to the air in the first zone 101, raising its temperature. This increased temperature difference between the heated air and the refrigerant in the phase change evaporator 110 leads to a faster phase change, improving the heat exchange efficiency of the evaporator and accelerating refrigerant circulation. This, in turn, improves the heat exchange efficiency of the phase change condenser 120, ultimately enhancing the heat exchange efficiency of the fresh air and resulting in better warming of the fresh air. Furthermore, the residual heat from the fumes is utilized and recovered, saving energy.

[0047] Under the action of the air supply fan 130, fresh air can enter the second area 102 of the heat exchange chamber through the fresh air inlet 103. During the process of the fresh air passing through the phase change condenser 120, the fresh air exchanges heat with the refrigerant in the phase change condenser 120 and the fresh air is heated.

[0048] When the heated fresh air reaches the deflector plate 140, the deflector plate 140 can guide the fresh air flow. During the flow of the fresh air along the deflector plate 140, at least part of the fresh air flow flows along the first flow section 150 of the upstream part of one side of the deflector plate 140. When the fresh air flow reaches the guide port 141, the fresh air flow can pass through the guide port 141 and bend to reach the other side of the deflector plate 140 and continue to flow along the second flow section 160 of the downstream part of the other side of the deflector plate 140. Under the action of the deflector plate 140, the fresh air can flow along the deflector plate 140 in at least two flow areas.

[0049] Overall, the deflector 140 guides the fresh air flow, ensuring it enters the room through the air outlet in a specific direction, preventing the fresh air from becoming scattered and disorderly. By adjusting the airflow direction, more efficient air circulation and distribution can be achieved, improving airflow smoothness and uniformity, thereby increasing heat recovery efficiency and heat exchange effect. This also prevents a large temperature difference between the incoming air and the indoor temperature, improving the user experience. On the other hand, the deflector 140 and the guide opening 141 on it can form at least two flow areas, which can change the flow direction of the fresh air, allowing the fresh air to be agitated and mixed, thus improving the temperature uniformity of the fresh air flow.

[0050] The number of guide ports 141 can be one, two, three or four, etc. When there are multiple guide ports 141, within a certain range, the multiple guide ports 141 can be arranged at intervals along the length direction of the guide plate 140, or at intervals along the width direction of the guide plate 140, or the multiple guide ports 141 can be arranged in a crisscross pattern.

[0051] A partition can be installed within the first area 101 to create a passageway, forming a fume extraction passageway 104. As an optional solution, such as... Figure 1 As shown, the integrated range hood system also includes a circulation duct, which is set in the first area 101. The circulation duct is hollow inside to form a fume extraction channel 104. The circulation duct facilitates assembly.

[0052] Specifically, the upper part of the shell 100 has a heat exchange chamber, the lower part of the shell 100 has a smoke exhaust chamber, and an oil fume inlet is opened on the lower front side of the shell 100. The oil fume inlet is connected to the smoke exhaust chamber. One end of the oil fume suction channel is connected to the smoke exhaust chamber, and the other end is connected to the oil fume outlet. An oil fume outlet can be opened on the top of the shell 100.

[0053] A first baffle can be provided within the housing 100 to divide the inner cavity of the housing 100 into a lower exhaust chamber and an upper heat exchange chamber. A second baffle can be provided within the heat exchange chamber to divide the heat exchange chamber into a first region 101 and a second region 102 that are independent of each other. Alternatively, the housing 100 includes an upper shell and a lower shell that are connected to each other. The inner cavity of the upper shell forms the heat exchange chamber, and the inner cavity of the lower shell forms the exhaust chamber. A baffle can be provided within the inner cavity of the upper shell to divide the inner cavity into a first region 101 and a second region 102.

[0054] like Figure 6 As shown, based on the above embodiment, the guide port 141 is further opened in the thickness direction of the guide plate 140 and extends tangentially along the deflection path of the fresh air flow channel, thereby facilitating the fresh air flow to bend from the guide port 141 to form the second flow section 160 from the first flow section 150.

[0055] As an optional solution, the air outlet is located on the front side of the housing 100 (optionally, the air outlet is located on the upper part of the housing 100), and the fresh air inlet 103 is located on the top of the housing 100, which facilitates the connection of the fresh air inlet 103 to the external pipe for communication with the outside. Furthermore, the fresh air inlet is located on the top of the housing 100, which allows the external pipe to be located on the top of the housing 100, thus avoiding occupying the thickness or width space of the integrated range hood system.

[0056] like Figure 4 As shown, based on the above embodiment, the guide vane 140 extends forward and backward as a whole, with its rear end being the windward end 147, which is close to the phase change condenser 120. The front end of the guide vane 140 is opposite to the air inlet of the supply fan 130. This alignment of the front end of the guide vane 140 with the air inlet of the supply fan 130 allows fresh air to be directly directed to the supply fan 130, enabling the supply fan 130 to deliver fresh air into the room more quickly and improving indoor air quality regulation efficiency.

[0057] The guide plate 140 can extend in various forms, such as: the guide plate 140 is set as a slanted straight plate, with one end of the guide plate 140 close to the phase change condenser 120 and the other end close to the air inlet of the blower 130. It can be understood that the slanted straight plate means that the outline of the side of the guide plate 140 is a straight line, and the plate surface of the guide plate 140 (the two surfaces located between the two sides) can be wavy, sawtooth, etc.; or the guide plate 140 includes a front straight plate section and a rear straight plate section connected to each other, with a corner formed between the front straight plate section and the rear straight plate section. The guide port 141 can be set in the front straight plate section or the rear straight plate section. Preferably, the guide port 141 extends from the front straight plate section to the rear straight plate section.

[0058] As an alternative, such as Figures 2 to 6As shown, the windward end 147 of the deflector 140 is positioned higher than the front end of the deflector 140, and the deflector 140 is a rearwardly convex arc shape (e.g. Figures 2 to 6 As shown, the guide plate 140 is arranged in an arc shape convex away from the phase change condenser 120. The guide plate 140 is arranged in an arc shape (the side profile and the surface of the guide plate 140 are both arc-shaped), which can make the fresh air flow smoother, further improve the airflow smoothness and uniformity, and thus further improve the heat recovery efficiency.

[0059] The guide port 141 can be located near the rear end of the guide plate 140 or near the front end of the guide plate 140.

[0060] As an alternative, such as Figure 6 As shown, the guide port 141 extends from the windward end 147 of the guide plate 140 to the middle of the guide plate 140 and can cover the concave part of the guide plate 140. With this configuration, when the fresh air flow flows along the first flow section 150 to the turning point of the guide plate 140, it can better pass through the guide port 141 and flow along the second flow section 160, making the fresh air flow smoother and more uniform.

[0061] like Figure 3 As shown, based on the above embodiment, the fresh air flow channel further includes a third flow section 170 whose flow direction intersects both the flow direction of the first flow section 150 and the flow direction of the second flow section 160; in the width direction of the guide plate 140, the guide port 141 includes an air-guiding sidewall 149 disposed opposite to it; in the extension direction of the guide plate 140, the guide port 141 includes a flow-dividing sidewall 1410 located on the lower side; the third flow section 170 is located on the upper side of the guide plate 140 and downstream of the flow-dividing sidewall 1410; the second flow section 160 is located on the lower side of the guide plate 140; and the third flow section 170 is located on the upper side of the guide plate 140.

[0062] In this embodiment, as the fresh airflow flows along the guide port 141, the fresh airflow located in the middle of the guide port 141 can bend and enter the second flow section 160; the fresh airflow near the air intake sidewall 149 of the guide port 141 can flow along the air intake sidewall 149 to the diversion sidewall 1410. After impacting the diversion sidewall 1410, this part of the fresh airflow bends upward and enters the third flow section 170, while the other part bends and enters the second flow section 160; and a part of the fresh airflow directly impacts the diversion sidewall 1410, which can also cause this part of the fresh airflow to bend upward and enter the third flow section 170, while the other part bends and enters the second flow section 160. Of course, the fresh airflow that does not have time to bend through the guide port 141 can directly enter the third flow section 170 from the first flow section 150. In this embodiment, the fresh airflow has at least three flow areas along the guide plate 140, which can further improve the smoothness and uniformity of the fresh airflow, thereby further improving the heat exchange efficiency; moreover, part of the fresh airflow can be bent multiple times, and the fresh airflow can be further agitated, thereby making the temperature of the fresh air more uniform.

[0063] Preferably, the diversion sidewall 1410 is arranged at an angle, and the upper edge of the diversion sidewall 1410 is closer to the front end of the guide plate 140 than the lower edge of the diversion sidewall 1410. This arrangement can increase the contact area with the fresh air flow, receive more fresh air, and is more conducive to diverting the fresh air flow.

[0064] As an alternative, the deflector 140 is preferably flat, which can avoid a large difference in airflow velocity between the second flow section 160 and the third flow section 170, and help to keep the airflow velocities of the two flow paths consistent.

[0065] As an alternative, such as Figure 2 and Figure 3 As shown, the phase change condenser 120 is arranged adjacent to the fresh air inlet 103, and the baffle 140 is at least partially located below the phase change condenser 120.

[0066] In this embodiment, the phase change condenser 120 is arranged adjacent to the fresh air inlet 103. Therefore, after the fresh air enters the second region 102 from the fresh air inlet 103, it will pass through the phase change condenser 120 more quickly, resulting in faster heat exchange. This also allows more fresh air to pass through the phase change condenser 120 and be heated. At least a portion of the guide vane 140 is located below the phase change condenser 120, enabling the heat-exchanged fresh air to reach the guide vane 140 more quickly and receive airflow from it.

[0067] Alternatively, a portion of the guide vane 140 may be positioned below the phase change condenser 120, or the entire guide vane 140 may be positioned below the phase change condenser 120.

[0068] A portion of the windward side of the phase change condenser 120 can be positioned directly opposite the fresh air inlet 103.

[0069] As an alternative, such as Figure 2 and Figure 3 As shown, the windward side of the phase change condenser 120 is positioned directly opposite the fresh air inlet 103, and the projection of the phase change condenser 120 onto the plane where the fresh air inlet 103 is located can cover the fresh air inlet 103.

[0070] In this embodiment, the windward side of the phase change condenser 120 is directly opposite the fresh air inlet 103. It can be understood that the phase change condenser 120 is located directly below the fresh air inlet 103 and can be set close to the wall of the housing 100. With this arrangement, the fresh air can immediately and completely pass through the phase change condenser 120 after passing through the fresh air inlet 103, so that all the fresh air can be heated by heat exchange, thereby improving the heat exchange efficiency.

[0071] like Figure 2 As shown, based on any of the above embodiments, as an optional solution, in the thickness direction of the housing 100, the rear end of the guide plate 140 is opposite to the rear side of the phase change condenser 120. In this embodiment, after the fresh air reaches the guide plate 140, it all flows along the upper plate surface 145 of the guide plate 140.

[0072] like Figure 3 As shown, based on any of the above embodiments, as an optional solution, in the thickness direction of the housing 100, the rear end (i.e., the windward end 147) of the guide plate 140 is opposite to the middle part of the phase change condenser 120, so as to form a flow channel on the front and rear sides of the guide plate 140 respectively.

[0073] In this embodiment, the rear end of the guide plate 140 is positioned opposite the middle of the phase change condenser 120. The guide plate 140 can divide the fresh air passing through the phase change condenser 120 into two paths: one path is located at the front of the guide plate 140, and the other path is located at the rear of the guide plate 140. The fresh air flow at the front first flows along the first flow section 150, and then part of it flows along the third flow section 170, while the other part passes through the guide port 141. The fresh air flow passing through the guide port 141 can then partly enter the second flow section 160 and partly enter the third flow section 170. The fresh air flow at the rear flows along the rear of the guide plate 140 until it mixes with the fresh air flow in the second flow section 160. In this case, at least four flow areas can be formed, which makes the fresh air flow smoother. During the flow, the fresh air flow will be agitated during turning and mixing, which can further improve the temperature uniformity of the fresh air flow.

[0074] like Figure 6As shown, based on any of the above embodiments, the guide plate 140 is further provided with a first flow cavity 142 and a second flow cavity 143 that are isolated from each other. The first flow cavity 142 and the second flow cavity 143 are both connected between the phase change evaporator 110 and the phase change condenser 120, so as to realize the circulation of refrigerant between the phase change evaporator 110 and the phase change condenser 120.

[0075] Specifically, the first flow chamber 142 connects the outlet of the phase change condenser 120 and the inlet of the phase change evaporator 110, and the second flow chamber 143 connects the inlet of the phase change condenser 120 and the outlet of the phase change evaporator 110. Liquid refrigerant enters the first flow chamber 142 from the outlet of the phase change condenser 120, and then enters the phase change evaporator 110 through the inlet of the phase change evaporator 110. After absorbing heat and converting to gas within the phase change evaporator 110, the gaseous refrigerant enters the second flow chamber 143 through the outlet of the phase change evaporator 110, and then enters the phase change condenser 120 through the inlet of the phase change condenser 120, thus achieving refrigerant circulation. In this embodiment, the guide plate 140 not only guides the gas flow but also facilitates the circulation of refrigerant, replacing part of the refrigerant circulation piping and reducing the piping within the heat exchange chamber. This results in a simple and compact refrigeration cycle structure between the phase change evaporator 110 and the phase change condenser 120.

[0076] It is understandable that if the baffle plate 140 is located in the second region 102 and the phase change evaporator 110 is located in the first region 101, then the pipe between the baffle plate 140 and the phase change evaporator 110 needs to pass through the wall between the first region 101 and the second region 102.

[0077] The guide plate 140 can be hollow, and a partition is provided in the inner cavity of the guide plate 140 to divide the inner cavity of the guide plate 140 into a first flow cavity 142 and a second flow cavity 143.

[0078] The first flow cavity 142 and the second flow cavity 143 can be arranged side by side in the width direction of the guide plate 140 (the width direction of the guide plate 140 is consistent with the width direction of the housing 100).

[0079] As an alternative, such as Figure 3 and Figure 4As shown, in the thickness direction of the deflector 140, the first flow cavity 142 and the second flow cavity 143 are arranged side by side, which can also be understood as the first flow cavity 142 and the second flow cavity 143 are arranged one above the other. With such an arrangement, the area of the plate surface of the deflector 140 corresponding to the first flow cavity 142 and the area of the plate surface corresponding to the second flow cavity 143 can both reach the maximum, so that the effective heat exchange area between the air flow and the refrigerant in the first heat exchange cavity reaches the maximum and / or the effective heat exchange area between the air flow and the refrigerant in the second heat cavity reaches the maximum.

[0080] For example: The first flow cavity 142 is located above the second flow cavity 143. When in the thickness direction of the housing 100, the rear end of the deflector 140 is opposite to the rear side of the phase change condenser 120, when the air flow passes through the upper plate surface 145 of the deflector 140 (when the deflector 140 is inclined, the upper plate surface 145 of the deflector 140 is also its upper plate surface 145), the gas can exchange heat with the liquid refrigerant in the first flow cavity 142 on the upper plate surface 145 of the deflector 140, further reducing the temperature of the liquid refrigerant, thereby increasing the temperature difference between the liquid refrigerant and the fresh air, improving the heat exchange effect, and the temperature of the fresh air is further increased. When in the thickness direction of the housing 100, air flow channels are formed on both the front and rear sides of the deflector 140. The fresh air flow on the upper side exchanges heat with the liquid refrigerant in the first flow cavity 142, and the fresh air flow on the lower side exchanges heat with the gaseous refrigerant in the second flow cavity 143, and the temperature of both fresh air flows can be increased. <000^189>

[0081] Among them, a first through hole is provided on the upper layer of the deflector 140, the first through hole penetrates through the first flow cavity 142, a second through hole is provided on the lower layer of the deflector 140, the second through hole penetrates through the second flow cavity 143, and the first through hole and the second through hole are connected, thereby forming a guiding port 141 through which the fresh air flow can pass.

[0082] The first through hole can be set in a shape such as a circle, an ellipse, a kidney shape, a triangle, or a pentagon. The second through hole can also be set in a shape such as a circle, an ellipse, a kidney shape, a triangle, or a pentagon. The shapes of the first through hole and the second through hole can be different. Optionally, the shapes of the first through hole and the second through hole are the same, which is convenient for processing.

[0083] As an optional solution, as Figure 6 shown, the first through hole is set in a quadrilateral shape so that the first flow cavity 142 is set in a "return" character shape, and the second through hole is set in a quadrilateral shape so that the second flow cavity 143 is set in a "return" character shape, which is convenient for processing.

[0084] Among them, the first through hole and the second through hole can be partially oppositely arranged, that is, at least part of the fresh air flow entering the first through hole still needs to turn and then enter the second through hole.

[0085] As an alternative, such as Figure 6 As shown, the first and second ports are positioned opposite each other, which facilitates the processing of the guide plate 140.

[0086] like Figures 2 to 6 As shown, based on the above embodiment, further, in the thickness direction of the guide plate 140, fins 144 are provided at least on the upper plate surface 145 of the guide plate 140. The fins 144 can realize airflow turbulence, making the gas temperature more uniform and improving the heat exchange efficiency.

[0087] Alternatively, fins 144 can be provided only on the upper plate surface 145, or on both the upper plate surface 145 and the lower plate surface 146.

[0088] It should be noted that a charging port 148 is provided on the guide plate 140. The charging port 148 can be connected to the first flow chamber 142, the second flow chamber 143, or both the first and second flow chambers 142 and 143. Refrigerant can be charged through the charging port 148. Of course, if necessary, the refrigerant in the phase change condenser 120 and the phase change evaporator 110 can also be discharged.

[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention 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 or all of the technical features therein; 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 the present invention. Numerous specific details are set forth in the specification provided herein. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification. Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features included in other embodiments but not others, combinations of features from different embodiments are meant to be within the scope of the present invention and form different embodiments.

Claims

1. An integrated range hood system, comprising: The housing (100) has an oil fume extraction channel (104), and the housing (100) has an oil fume inlet and an oil fume outlet, both of which are in fluid communication with the oil fume extraction channel (104); The housing (100) also has a heat exchange chamber inside. The housing (100) is provided with a fresh air inlet (103) for communicating with the outside and an air outlet for communicating with the inside. The fresh air inlet (103) and the air outlet are both in fluid communication with the heat exchange chamber and form a fresh air flow channel. The heat exchange chamber includes a first region (101) and a second region (102) that are independent of each other. A phase change evaporator (110) is provided in the first region (101), and a phase change condenser (120) is provided in the second region (102). A blower (130) is located in the second area (102) and its outlet is connected to the air outlet. Its features are: The fume extraction channel (104) is located within the first region (101) and is not connected to the heat exchange chamber; in the height direction of the shell (100), the phase change condenser (120) is higher than the phase change evaporator (110); the fresh air flow channel includes a first flow section (150) and a second flow section (160) with intersecting flow directions. Also includes: A deflector plate (140) is provided in the second region (102). The deflector plate (140) is arranged on the airflow path of the fresh air duct. The deflector plate (140) has a guide port (141) that allows the fresh air duct to bend from the first flow section (150) to form the second flow section (160).

2. The integrated range hood system according to claim 1, characterized in that, The guide port (141) is opened along the thickness direction of the guide plate (140) and extends tangentially along the deflection path of the fresh air flow channel.

3. The integrated range hood system according to claim 2, characterized in that, The air outlet is located on the front side of the housing (100), and the fresh air inlet (103) is located on the top of the housing (100); The guide plate (140) extends front and back as a whole. The rear end of the guide plate (140) is close to the phase change condenser (120) to form the windward end (147), and the front end of the guide plate (140) is opposite to the air inlet end of the blower (130).

4. The integrated range hood system according to claim 3, characterized in that, The windward end (147) of the guide plate (140) is set higher than the front end of the guide plate (140), and the guide plate (140) is an arc shape that convexes backward.

5. The integrated range hood system according to claim 4, characterized in that, The guide port (141) extends from the windward end (147) near the guide plate (140) toward the middle of the guide plate (140) and can cover the concave part of the guide plate (140).

6. The integrated range hood system according to claim 5, characterized in that, The fresh air flow channel further includes a third flow segment (170) whose flow direction intersects with the flow directions of both the first flow segment (150) and the second flow segment (160); In the width direction of the guide plate (140), the guiding port (141) includes air guiding side walls (149) arranged oppositely, and in the extending direction of the guide plate (140), the guiding port (141) includes a flow dividing side wall (1410) located on the lower side. The third flow segment (170) is located above the guide plate (140) and downstream of the flow dividing side wall (1410).

7. The integrated range hood system according to claim 6, wherein The guide plate (140) is arranged in a flat shape.

8. The integrated range hood system according to any one of claims 1 - 7, wherein The guide plate (140) is provided with a first flow cavity (142) and a second flow cavity (143) that are isolated from each other. Both the first flow cavity (142) and the second flow cavity (143) are connected between the phase change evaporator (110) and the phase change condenser (120) to enable the refrigerant to circulate between the phase change evaporator (110) and the phase change condenser (120).

9. The integrated range hood system according to claim 8, wherein In the thickness direction of the guide plate (140), the first flow cavity (142) and the second flow cavity (143) are arranged side by side; the guide plate (140) is provided with a first through port to make the first flow cavity (142) arranged in a "return" shape, and the guide plate (140) is provided with a second through port to make the second flow cavity (143) arranged in a "return" shape. The first through port and the second through port are connected to form the guiding port (141).

10. The integrated range hood system according to claim 9, wherein The first through port and the second through port are arranged opposite to each other.

Images