Integrated range hood system

Abstract

The invention relates to the technical field of kitchen appliances, in particular to an integrated range hood system. According to the integrated extractor hood system, a heat exchange cavity of a shell comprises a first area and a second area which are independent of each other, a phase change evaporator is arranged in the first area, and a phase change condenser is arranged in the second area; the oil smoke suction channel is located in the first area and does not communicate with the heat exchange cavity. The fresh air flow channel comprises a first flow section and a second flow section which intersect in the flowing direction. The flow guide plate is arranged in the second area, the flow guide plate is arranged on an airflow flowing path of the fresh air flow channel, and the flow guide plate is provided with a guide opening capable of enabling the fresh air flow channel to be bent from the first flow section to form a second flow section. The guide plates and the guide ports formed in the guide plates can form at least two circulation areas, so that the flowing direction of the fresh air flow can be changed, the fresh air can be stirred and mixed, and the temperature uniformity of the fresh air flow can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen appliances, and in particular to an integrated range hood system. Background Art

[0002] Generally, there is no fresh air system in the kitchen. The main limitation is that when cooking in winter, the outdoor temperature is usually lower than the indoor temperature. Directly introducing outdoor air will cause the indoor temperature to drop, which will cause human discomfort. Kitchen air conditioners with fresh air function need to add electric auxiliary heating to heat the fresh air, which consumes a lot of energy.

[0003] A phase change heat exchange device is used, including an evaporator, a condenser and a circulation pipe connected between the evaporator and the condenser, and there is a height difference between the evaporator and the condenser; the evaporator can use the heat of the gas in the smoke exhaust pipe to realize the conversion of the refrigerant from liquid to gas, the density of the refrigerant is reduced, and it enters the condenser through the circulation pipe; the refrigerant is converted from gas to liquid in the condenser to release heat, thereby heating the surrounding air, and at the same time, the refrigerant density increases and enters the evaporator through the circulation pipe, and the cycle is repeated.

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

[0005] The purpose of the present invention is to provide a circulating connection component and a phase change heat exchange device, so as to solve the technical problem existing in the related art that fresh air enters the equipment, the fresh air flow has poor smoothness, and thus leads to poor fresh air heat exchange efficiency.

[0006] The present invention provides an integrated range hood system, comprising: a shell having a range hood suction channel, a range hood having a range hood inlet and a range hood outlet, both of which are fluidically connected to the range hood suction channel; a heat exchange chamber is further provided inside the shell, a fresh air inlet for connecting to the outside and an air supply port for connecting to the inside of the room are provided on the shell, both of which are fluidically connected to the heat exchange chamber to form a fresh air flow channel; the heat exchange chamber comprises a first region and a second region which are independent of each other, a phase change evaporator is provided in the first region, and a A phase change condenser; an air supply fan, which is arranged in the second area and the air outlet end is connected to the air supply port; the oil fume suction channel is located in the first area and is not connected to the heat exchange chamber; in the height direction of the shell, the phase change condenser is higher than the phase change evaporator; the fresh air flow channel includes a first flow segment and a second flow segment whose flow directions intersect; and also includes: a guide plate, which is arranged in the second area, the guide plate is arranged on the airflow path of the fresh air flow channel, and the guide plate is provided with a guide port for the fresh air flow channel to bend from the first flow segment to form the second flow segment.

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

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

[0009] Furthermore, the windward end of the guide plate is arranged higher than the front end of the guide plate, and the guide plate is arranged in an arc shape that bulges backwards.

[0010] Furthermore, the guide port extends from a position close to the windward end of the guide plate toward the middle of the guide plate and can cover the most concave part of the guide plate.

[0011] Furthermore, the fresh air flow channel also includes a third flow segment whose flow direction intersects with the flow direction of the first flow segment and the flow direction of the second flow segment; in the width direction of the guide plate, the guide port includes relatively arranged air induction side walls, and in the extension direction of the guide plate, the guide port includes a diversion side wall located on the lower side, and the third flow segment is located on the upper side of the guide plate and downstream of the diversion side wall.

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

[0013] Furthermore, a first flow cavity and a second flow cavity isolated from each other are provided in the guide plate, and both the first flow cavity and the second flow cavity are connected between the phase change evaporator and the phase change condenser to realize the circulation of refrigerant between the phase change evaporator and the phase change condenser.

[0014] Furthermore, in the thickness direction of the guide plate, the first flow chamber and the second flow chamber are arranged side by side; a first opening is provided on the guide plate to make the first flow chamber arranged in a "U" shape, and a second opening is provided on the guide plate to make the second flow chamber arranged in a "U" shape, and the first opening and the second opening are connected to form the guide port.

[0015] Furthermore, the first opening and the second opening are arranged opposite to each other.

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

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

[0018] The guide plate can guide the fresh air flow. When the fresh air flow flows along the guide plate, at least part of the fresh air flow flows along the first flow segment of the upstream part of one side of the guide plate. When the fresh air flow reaches the guide port, the fresh air flow can pass through the guide port and bend to the other side of the guide plate and continue to flow along the second flow segment of the downstream part of the other side of the guide plate. Under the action of the guide plate, the fresh air can flow along the guide plate in at least two circulation areas.

[0019] On the whole, the guide plate guides the fresh air so that the fresh air enters the room through the air supply port in a certain flow direction, avoiding the fresh air from being scattered and disordered, achieving more efficient air circulation and distribution, improving the smoothness and uniformity of the airflow, thereby improving the heat recovery efficiency, and then improving the heat exchange effect, avoiding a large difference between the temperature of the gas entering the room and the indoor temperature, and improving the user experience; on the other hand, the guide plate and the guide port arranged on the guide plate can form at least two flow areas, 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 fresh air flow temperature can be improved.

[0020] It should be understood that both the foregoing general description and the following specific embodiments are for the purpose of example and illustration and do not necessarily limit the present disclosure. The accompanying drawings, which are incorporated into and constitute 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] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic structural diagram of an integrated range hood system from one perspective 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 shown;

[0024] Figure 3 A schematic structural diagram of an integrated range hood system according to another embodiment of the present invention;

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

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

[0027] Figure 6 A schematic structural diagram of a guide plate in an integrated range hood system according to an embodiment of the present invention.

[0028] icon:

[0029] 100-housing; 101-first area; 102-second area; 103-fresh air inlet; 104-oil fume suction channel;

[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- filling port; 149- wind-inducing side wall; 1410- diversion side wall;

[0034] 150-first flow section;

[0035] 160-second flow section;

[0036] 170-The third flow section. DETAILED DESCRIPTION

[0037] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0038] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0039] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0043] It should be noted that the “front” described in the embodiment of the present invention refers to the direction close to the room, and the “rear” is the direction opposite to the “front”.

[0044] like Figures 1 to 6As shown, an embodiment of the present invention provides an integrated range hood system, comprising: a housing 100, having a range hood duct 104, a range hood inlet and a range hood outlet are provided on the housing 100, and both the range hood inlet and the range hood outlet are fluidly connected to the range hood duct 104; a heat exchange chamber is further provided inside the housing 100, a fresh air inlet 103 for connecting to the outside and an air supply port for connecting to the indoor are provided on the housing 100, and both the fresh air inlet 103 and the air supply port are fluidly connected to the heat exchange chamber to form a fresh air flow channel; the heat exchange chamber comprises a first region 101 and a second region 102 which 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 A phase change condenser 120 is provided; an air supply fan 130 is arranged in the second area 102 and the air outlet end is connected to the air supply port; the oil fume suction channel 104 is located in the first area 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 segment 150 and a second flow segment 160 whose flow directions intersect; and also includes: a guide plate 140, which is arranged in the second area 102, and the guide plate 140 is arranged on the airflow path of the fresh air flow channel, and the guide plate 140 is provided with a guide port 141 that allows the fresh air flow channel to bend from the first flow segment 150 to form the second flow segment 160.

[0045] In this embodiment, the refrigerant is converted from liquid to gas in the phase change evaporator 110, the density of the refrigerant decreases, and it flows to the phase change condenser 120 located at a relatively high position; the refrigerant is converted from gas to liquid in the phase change condenser 120, the density of the refrigerant increases, and it flows to the phase change evaporator 110 located at a relatively low position, and the refrigerant circulates in this way.

[0046] The oil fume suction channel 104 is arranged in the first area 101, and the oil fume in the kitchen can enter the housing through the oil fume inlet, then enter the oil fume suction channel 104, and finally be discharged into the kitchen oil fume channel hole through the oil fume outlet. The temperature of the oil fume is relatively high, and heat can be transferred to the air in the first area 101 to increase the temperature of this part of the air. The temperature difference between the heated air and the refrigerant in the phase change evaporator 110 is larger, so that the phase change of the refrigerant in the phase change evaporator 110 can be faster, and the heat exchange efficiency of the phase change evaporator 110 can be improved, thereby accelerating the circulation of the refrigerant, thereby improving the heat exchange efficiency of the phase change condenser 120, and thereby improving the heat exchange efficiency of the fresh air, so that the heating effect of the fresh air is better. In addition, the residual heat of the oil fume is also utilized and recycled to save energy.

[0047] Under the action of the air supply fan 130, fresh air can enter the second area 102 of the heat exchange chamber from the fresh air inlet 103. When the fresh air passes 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 guide plate 140, the guide plate 140 can guide the fresh air flow. During the flow of the fresh air flow along the guide plate 140, at least part of the fresh air flow flows along the first flow segment 150 of the upstream part of one side of the guide 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 the other side of the guide plate 140 and continue to flow along the second flow segment 160 of the downstream part of the other side of the guide plate 140. Under the action of the guide plate 140, the fresh air can flow along the guide plate 140 in at least two circulation areas.

[0049] On the whole, the guide plate 140 guides the fresh air so that the fresh air enters the room through the air supply port in a certain flow direction, thereby preventing the fresh air from being scattered and disordered. By adjusting the airflow direction, more efficient air circulation and distribution can be achieved, and the smoothness and uniformity of the airflow can be improved, thereby improving the heat recovery efficiency, and then improving the heat exchange effect, avoiding a large difference between the temperature of the gas entering the room and the indoor temperature, and improving the user experience. On the other hand, the guide plate 140 and the guide port 141 arranged on the guide plate 140 can form at least two flow areas, 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 fresh air flow temperature can be improved.

[0050] Among them, the number of guide openings 141 can be one, or two, three or four, etc. When the number of guide openings 141 is multiple, within a certain range, multiple guide openings 141 can be spaced apart along the length direction of the guide plate 140, or spaced apart along the width direction of the guide plate 140, or multiple guide openings 141 can be criss-crossed.

[0051] A panel may be provided in the first area 101, and the panel may enclose a passage to form an oil fume suction passage 104. As an optional solution, Figure 1 As shown, the integrated range hood system further includes: a circulation duct, which is arranged in the first area 101. The interior of the circulation duct is hollow to form a fume suction channel 104. The circulation duct is arranged to facilitate 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 front side of the lower part 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. The oil fume outlet can be opened at the top of the shell 100.

[0053] A first baffle may be provided in the housing 100 to separate the inner cavity of the housing 100 into a lower smoke exhaust cavity and an upper heat exchange cavity, and a second baffle may be provided in the heat exchange cavity to separate the heat exchange cavity 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 cavity, the inner cavity of the lower shell forms the smoke exhaust cavity, and a baffle is provided in the inner cavity of the upper shell to separate the inner cavity into the first region 101 and the second region 102.

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

[0055] As an optional solution, the air supply port is opened on the front side of the shell 100 (optionally, the air supply port is arranged at the upper part of the shell 100), and the fresh air inlet 103 is opened at the top of the shell 100, so that the fresh air inlet 103 can be connected to the external pipe to communicate with the outdoors, and the new air inlet is arranged at the top of the shell 100, so the external pipe can be arranged at the top of the shell 100 to avoid occupying the thickness space or width space of the integrated range hood system.

[0056] like Figure 4 As shown, based on the above embodiment, further, the guide plate 140 extends forward and backward as a whole, and the rear end of the guide plate 140 is the windward end 147, the windward end 147 is close to the phase change condenser 120, and the front end of the guide plate 140 is opposite to the air inlet end of the air supply fan 130. The front end of the guide plate 140 is opposite to the air inlet end of the air supply fan 130, so that the fresh air can be directly guided to the air supply fan 130, and the air supply fan 130 can send the fresh air into the room faster, thereby improving the indoor air quality adjustment efficiency.

[0057] Among them, the guide plate 140 can be extended forward and backward in various forms, for example: the guide plate 140 is arranged in an oblique straight plate, one end of the guide plate 140 is close to the phase change condenser 120, and the other end is close to the air inlet end of the air supply fan 130. It can be understood that the oblique straight plate means that the contour 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 side surfaces) can be wavy, serrated, etc.; or the guide plate 140 includes a front straight plate section and a rear straight plate section connected to each other, and a corner is 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 in 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, Figures 2 to 6As shown, the windward end 147 of the guide plate 140 is higher than the front end of the guide plate 140, and the guide plate 140 is arranged in an arc shape that bulges backward (such as Figures 2 to 6 As shown, the guide plate 140 is arranged in an arc shape that convexly moves away from the phase change condenser 120). The guide plate 140 is arranged in an arc shape (the side profile of the guide plate 140 and the plate surface of the guide plate 140 are both arranged in an arc shape), which can make the fresh air flow more smoothly, further improve the smoothness and uniformity of the airflow, and thus further improve the heat recovery efficiency.

[0059] The guide port 141 may be disposed at a position close to the rear end of the guide plate 140 , or may be disposed at a position close to the front end of the guide plate 140 .

[0060] As an alternative, Figure 6 As shown, the guide port 141 extends from the windward end 147 near the guide plate 140 to the middle part of the guide plate 140, and can cover the most concave part of the guide plate 140. With such arrangement, 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, on the basis of the above embodiments, further, the fresh air flow channel also includes a third flow segment 170 whose flow direction intersects with the flow direction of the first flow segment 150 and the flow direction of the second flow segment 160; in the width direction of the guide plate 140, the guide port 141 includes relatively arranged air induction side walls 149, and in the extension direction of the guide plate 140, the guide port 141 includes a diversion side wall 1410 located on the lower side, the third flow segment 170 is located on the upper side of the guide plate 140 and downstream of the diversion side wall 1410, the second flow segment 160 is located on the lower side of the guide plate 140, and the third flow segment 170 is located on the upper side of the guide plate 140.

[0062] In this embodiment, when the fresh air flows along the guide port 141, the fresh air in the middle of the guide port 141 can be bent to enter the second flow segment 160; the fresh air near the guide port 141 can flow along the guide port 149 to the diversion side wall 1410, and after hitting the diversion side wall 1410, this part of the fresh air can be bent upward to enter the third flow segment 170, and the other part can be bent to enter the second flow segment 160; and a part of the fresh air can directly hit the diversion side wall 1410, so that this part of the fresh air can be bent upward to enter the third flow segment 170, and the other part can be bent to enter the second flow segment 160. Of course, the fresh air that does not have time to bend through the guide port 141 can directly enter the third flow segment 170 from the first flow segment 150. In this embodiment, the fresh air flow has at least three flow areas along the guide plate 140, which can further improve the smoothness and uniformity of the fresh air flow, thereby further improving the heat exchange efficiency; moreover, part of the fresh air flow can be bent multiple times, and the fresh air flow can be further stirred, thereby making the temperature of the fresh air more uniform.

[0063] Preferably, the diversion side wall 1410 is arranged in an inclined surface, and the upper edge of the diversion side wall 1410 is closer to the front end of the guide plate 140 than the lower edge of the diversion side wall 1410. Such a setting can increase the area in contact with the fresh air flow, receive more fresh air, and be more conducive to diverting the fresh air flow.

[0064] As an optional solution, the guide plate 140 is preferably arranged in a flat shape, which can avoid a large difference between the air flow velocity of the second flow section 160 and the air flow velocity of the third flow section 170, which is conducive to maintaining the consistency of the air flow velocities of the two paths.

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

[0066] In this embodiment, the phase change condenser 120 is arranged adjacent to the fresh air inlet 103. After the fresh air enters the second area 102 from the fresh air inlet 103, it will pass through the phase change condenser 120 faster, exchange heat faster, and facilitate more fresh air to pass through the phase change condenser 120, and more fresh air is heated. At least part of the guide plate 140 is located below the phase change condenser 120, so that the fresh air after heat exchange can reach the guide plate 140 faster and be guided by the guide plate 140.

[0067] Part of the guide plate 140 may be disposed below the phase change condenser 120 , or the entire guide plate 140 may be disposed below the phase change condenser 120 .

[0068] A portion of the windward surface of the phase change condenser 120 may be arranged to be directly opposite to the fresh air inlet 103 .

[0069] As an alternative, Figure 2 and Figure 3 As shown, the windward surface of the phase change condenser 120 is arranged opposite to the fresh air inlet 103 , and the projection of the phase change condenser 120 on the plane where the fresh air inlet 103 is located can cover the fresh air inlet 103 .

[0070] In this embodiment, the windward surface of the phase change condenser 120 is arranged directly opposite to the fresh air inlet 103. It can be understood that the phase change condenser 120 is arranged directly below the fresh air inlet 103 and can be arranged close to the wall of the shell 100. With such a setting, 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 scheme, in the thickness direction of the shell 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 first.

[0072] like Figure 3 As shown, based on any of the above embodiments, as an optional solution, in the thickness direction of the shell 100, the rear end of the guide plate 140 (i.e., the windward end 147) 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 arranged opposite to the middle part of the phase change condenser 120, and 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 side of the guide plate 140, and the other path is located at the rear side of the guide plate 140. The fresh air flow at the front side first flows along the first flow segment 150, and then a part of it can flow along the third flow segment 170, and the other part passes through the guide port 141, wherein the fresh air flow passing through the guide port 141 can enter the second flow segment 160 in part, and the other part enters the third flow segment 170; the fresh air flow at the rear side flows along the rear side of the guide plate 140 until it is mixed with the fresh air flow of the second flow segment 160. In this case, at least four flow areas can be formed, so that the fresh air flow can flow more smoothly, and during the flow process, the fresh air flow will be agitated during the turning and mixing process, so as to further improve the uniformity of the fresh air flow temperature.

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

[0075] Specifically, the first circulation cavity 142 is connected between the outlet of the phase change condenser 120 and the inlet of the phase change evaporator 110, and the second circulation cavity 143 is connected between the inlet of the phase change condenser 120 and the outlet of the phase change evaporator 110. The liquid refrigerant enters the first circulation cavity 142 from the outlet of the phase change condenser 120, and then enters the phase change evaporator 110 from the first circulation cavity 142 through the inlet of the phase change evaporator 110. After the liquid refrigerant absorbs heat in the phase change evaporator 110 and is converted into gas, the gaseous refrigerant enters the second circulation cavity 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 realizing the refrigerant circulation. In this embodiment, the guide plate 140 can not only realize the gas diversion, but also realize the circulation and circulation of the refrigerant, and can replace a part of the refrigerant circulation pipeline, reduce the pipeline setting in the heat exchange cavity, and make the refrigeration section circulation structure between the phase change evaporator 110 and the phase change condenser 120 simple and compact.

[0076] It is understandable that the guide plate 140 is located in the second area 102 and the phase change evaporator 110 is located in the first area 101 , and the pipeline between the guide plate 140 and the phase change evaporator 110 needs to pass through the wall between the first area 101 and the second area 102 .

[0077] The guide plate 140 may be hollow, and a partition is disposed in the inner cavity of the guide plate 140 , so that the partition divides 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 may 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, Figure 3 and Figure 4As shown, in the thickness direction of the guide plate 140, the first circulation cavity 142 and the second circulation cavity 143 are arranged side by side, and it can also be understood that the first circulation cavity 142 and the second circulation cavity 143 are arranged up and down. With such an arrangement, the area of ​​the plate surface of the guide plate 140 corresponding to the first circulation cavity 142 and the area of ​​the plate surface corresponding to the second circulation cavity 143 can both reach the maximum, thereby maximizing the effective heat exchange area between the airflow and the refrigerant in the first heat exchange cavity and / or maximizing the effective heat exchange area between the airflow and the refrigerant in the second heat cavity.

[0080] For example: the first circulation cavity 142 is located above the second circulation cavity 143. When the rear end of the guide plate 140 is opposite to the rear side of the phase change condenser 120 in the thickness direction of the shell 100, when the airflow flows through the upper plate surface 145 of the guide plate 140 (when the guide plate 140 is tilted, the upper plate surface 145 of the guide plate 140 is also its upper plate surface 145), the gas can exchange heat with the liquid refrigerant in the first circulation cavity 142 on the upper plate surface 145 of the guide plate 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 the airflow channels are formed on both the front and rear sides of the guide plate 140 in the thickness direction of the shell 100, the fresh air flow on the upper side exchanges heat with the liquid refrigerant in the first circulation cavity 142, and the fresh air flow on the lower side exchanges heat with the gaseous refrigerant in the second circulation cavity 143, and the temperature of both fresh air can be increased.

[0081] Among them, the upper layer of the guide plate 140 is provided with a first opening, the first opening passes through the first circulation cavity 142, the lower layer of the guide plate 140 is provided with a second opening, the second opening passes through the second circulation cavity 143, the first opening and the second opening are connected, thereby forming a guide port 141 that can enable fresh air to pass through.

[0082] The first opening may be arranged in a circular, elliptical, waist-shaped, triangular, or pentagonal shape. The second opening may also be arranged in a circular, elliptical, waist-shaped, triangular, or pentagonal shape. The shapes of the first opening and the second opening may be different. Optionally, the shapes of the first opening and the second opening are the same, which is convenient for processing.

[0083] As an alternative, Figure 6 As shown, the first opening is arranged in a quadrilateral shape so that the first flow cavity 142 is arranged in a "U" shape, and the second opening is arranged in a quadrilateral shape so that the second flow cavity 143 is arranged in a "U" shape, which is convenient for processing.

[0084] The first opening and the second opening may be partially arranged opposite to each other, that is, at least part of the fresh air flow entering the first opening needs to turn before entering the second opening.

[0085] As an alternative, Figure 6 As shown, the first opening and the second opening are arranged opposite to 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, at least on the upper plate surface 145 of the guide plate 140, fins 144 are provided. The provision of the fins 144 can achieve air flow turbulence, make the gas temperature more uniform, and further improve the heat exchange efficiency.

[0087] The fins 144 may be provided only on the upper plate surface 145. The fins 144 may also be provided on both the upper plate surface 145 and the lower plate surface 146.

[0088] It should be noted that a filling port 148 is provided on the guide plate 140, and the filling port 148 can be communicated with the first circulation cavity 142, can be communicated with the second circulation cavity 143, or can be communicated with both the first circulation cavity 142 and the second circulation cavity 143, and refrigerant can be added through the filling 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, rather than to limit them; although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention. In the description provided herein, a large number of specific details are described. However, it can be understood that the embodiments of the present invention can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description. In addition, those skilled in the art can understand that although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments means being within the scope of the present invention and forming different embodiments.

Claims

1. An integrated range hood system, comprising: The housing (100) has an oil fume suction channel (104); an oil fume inlet and an oil fume outlet are provided on the housing (100); the oil fume inlet and the oil fume outlet are both in fluid communication with the oil fume suction channel (104); The shell (100) further comprises a heat exchange cavity inside, and the shell (100) is provided with a fresh air inlet (103) for communicating with the outside and an air supply port for communicating with the indoor, and the fresh air inlet (103) and the air supply port are both in fluid communication with the heat exchange cavity to form a fresh air flow channel; The heat exchange chamber comprises a first region (101) and a second region (102) which are independent of each other; a phase change evaporator (110) is arranged in the first region (101), and a phase change condenser (120) is arranged in the second region (102); An air supply fan (130) is disposed in the second area (102) and has an air outlet connected to the air supply port; Features: The oil fume suction channel (104) is located in the first area (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 comprises a first flow section (150) and a second flow section (160) whose flow directions intersect; Also includes: A guide plate (140) is disposed in the second area (102); the guide plate (140) is arranged on the airflow path of the fresh air flow channel, and the guide plate (140) is provided with a guide opening (141) that allows the fresh air flow channel 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 along the tangent direction of the deflection path of the fresh air flow channel.

3. The integrated range hood system according to claim 2, characterized in that: The air supply port is opened on the front side of the shell (100), and the fresh air inlet (103) is opened on the top of the shell (100); The guide plate (140) extends forward and backward as a whole, and the rear end of the guide plate (140) is close to the phase change condenser (120) to form a windward end (147), and the front end of the guide plate (140) is opposite to the air inlet end of the air supply fan (130).

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

5. The integrated range hood system according to claim 4, characterized in that: The guide port (141) extends from a windward end (147) close to the guide plate (140) toward the middle of the guide plate (140), and is capable of covering the most 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 comprises 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 oppositely arranged air induction side walls (149); in the extension direction of the guide plate (140), the guide port (141) includes a diversion side wall (1410) located at the lower side; and the third flow section (170) is located at the upper side of the guide plate (140) and downstream of the diversion side wall (1410).

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

8. The integrated range hood system according to any one of claims 1 to 7, characterized in that: The guide plate (140) is provided with a first circulation cavity (142) and a second circulation cavity (143) which are isolated from each other. The first circulation cavity (142) and the second circulation cavity (143) are both connected between the phase change evaporator (110) and the phase change condenser (120) to realize the circulation of the refrigerant between the phase change evaporator (110) and the phase change condenser (120).

9. The integrated range hood system according to claim 8, characterized in that: In the thickness direction of the guide plate (140), the first circulation cavity (142) and the second circulation cavity (143) are arranged side by side; the guide plate (140) is provided with a first opening so that the first circulation cavity (142) is arranged in a "U" shape, and the guide plate (140) is provided with a second opening so that the second circulation cavity (143) is arranged in a "U" shape, and the first opening and the second opening are connected to form the guide port (141).

10. The integrated range hood system according to claim 9, characterized in that: The first opening and the second opening are arranged opposite to each other.

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