Air supply assembly of refrigeration assembly, refrigeration assembly and refrigeration extractor hood

Abstract

The utility model discloses an air supply assembly of a refrigeration assembly, the refrigeration assembly and a refrigeration range hood, the air supply assembly of the refrigeration assembly comprises an evaporator, a filter screen, an air outlet assembly and a cold air dissipation machine, and the cold air dissipation machine is used for sucking air to exchange heat with the evaporator and blowing cold air after heat exchange to the air outlet assembly; the evaporator and at least part of the filter screen are arranged in the support, an air inlet channel allowing air to be sucked in is formed in the support, the air outlet assembly comprises a frame, air guide blades and an air outlet channel formed in the frame, and the air guide blades can open and close the air outlet channel; the air supply assembly further comprises a valve plate assembly capable of opening and closing the air inlet channel, and the filter screen is located between the valve plate assembly and the evaporator. Compared with the prior art, the air inlet device has the advantages that the air inlet channel can be opened and closed by arranging the valve plate assembly, oil smoke particles or dust can be prevented from entering the filter screen or the evaporator when the air inlet channel is closed, the filter screen failure is reduced, and the risk of oil contamination accumulation and blockage of the evaporator is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioning technology especially, a kind of air supply assembly of refrigeration assembly, the refrigeration assembly of application with this air supply assembly, and the refrigeration range hood of application with this refrigeration assembly. BACKGROUND

[0002] With the improvement of material life level, people's requirement to kitchen environment is higher and higher, people need to use stove etc. during cooking, a large amount of heat is generated in kitchen, which leads to the increase of temperature of whole space, so that the comfort of environment decreases. At present, most families adopt temporary addition fan to solve this problem, however, this method is not only inconvenient, but also occupies kitchen area.

[0003] The range hood with refrigeration function has been disclosed in prior art, which can blow cold air from the shell of range hood to cool down the kitchen. The air supply assembly of existing refrigeration range hood or air conditioner generally adopts indoor air inlet or outdoor fresh air introduction to cool down the room, such as the refrigeration range hood disclosed in Chinese patent with application number 201610382769.3. Due to the special environment of kitchen, evaporator is easily dirty and blocked, which leads to the decrease of refrigeration effect. Generally, the way of adding air inlet filter screen in front of evaporator is adopted to reduce the blockage of evaporator, but filter screen is consumable and needs to be replaced frequently. The air supply assembly adopting outdoor fresh air introduction needs wall hole, and there is a risk that wall hole cannot be opened in some kitchen scenes.

[0004] In addition, the air supply assembly inlet channel of existing refrigeration range hood or kitchen air conditioner is in open state when air conditioner is not used, oil stains or dust are accumulated on the filter screen of inlet channel for a long time, which leads to the failure of inlet filter screen. Air valve can be arranged at air supply port, but the movement mechanism of air valve needs separate stepping motor or other driving device to drive it to open and close, which causes complex structure.

[0005] Therefore, further improvement is needed. UTILITY MODEL CONTENTS

[0006] The first technical problem to be solved by the utility model is to provide an air supply assembly of refrigeration assembly, which can reduce the risk of filter screen failure and the risk of evaporator blockage.

[0007] The second technical problem to be solved by the utility model is to provide a refrigeration assembly with the above air supply assembly.

[0008] The third technical problem to be solved by the utility model is to provide a refrigeration range hood with the above refrigeration assembly.

[0009] The utility model discloses a technical scheme that solves the first technical problem is as follows: a kind of air supply assembly of refrigeration assembly, including evaporator, filter screen, air outlet assembly and the cold air blower that air is inhaled and exchanges heat with evaporator and the cold air after heat exchange is blown to air outlet assembly, the evaporator and at least part of filter screen are arranged in support, air inlet passage is formed in the support for air suction, the air outlet assembly includes frame, air guide blade and the air outlet passage formed in frame, the air guide blade can open and close air outlet passage;Its characterized in that:

[0010] The air supply assembly further includes a valve plate assembly capable of opening and closing the air inlet passage, and the filter screen is located between the valve plate assembly and the evaporator.

[0011] By setting the valve plate assembly in the air inlet passage, the air inlet passage can be opened and closed, and thus the opening and closing of the air inlet passage of the air supply assembly can be controlled according to the use condition or user demand. For example, when the refrigeration assembly is closed, the air inlet passage is closed by the valve plate assembly, preventing oil smoke particles or dust from entering the filter screen or the evaporator through the air inlet passage, reducing the risk of filter screen failure (extending the filter screen replacement cycle) and the risk of evaporator oil accumulation blockage.

[0012] According to one aspect of the utility model, the valve plate assembly includes valve plates, a first connecting rod and a second connecting rod. The valve plates are at least two and arranged side by side. Each valve plate has a rotation shaft and can rotate relative to the support. Each rotation shaft is connected to the first connecting rod through the second connecting rod.

[0013] According to another aspect of the utility model, the valve plate assembly includes valve plates. The valve plates have rotation shafts and can rotate relative to the support.

[0014] Preferably, the air supply assembly further includes a motion mechanism for driving the air guide blade and the valve plate linkage. The motion mechanism includes a motor for driving the air guide blade to rotate relative to the frame to open and close the air outlet passage, a first transmission shaft rotating with the air guide blade, and a driving gear in transmission connection with the first transmission shaft. The driving gear directly or indirectly drives the rotation shaft of the valve plate assembly to rotate. Thus, the control of the valve plate does not require a separate driving motor. The driving motor of the air guide blade is used to drive the valve plate to open and close, which is simple in structure and low in cost.

[0015] Further, to better utilize the space, the rotation axes of the air guide blade and the valve plate are perpendicular to each other. The motion mechanism further includes a gear pair and a second transmission shaft. The gear pair includes a driving bevel gear and a driven bevel gear in mesh with each other. The driving bevel gear is arranged on the first transmission shaft to realize linkage. The driven bevel gear is arranged on the second transmission shaft to realize linkage. The driving gear is arranged on the second transmission shaft.

[0016] Further, in order to facilitate the transmission between the driving gear and the rotating shaft, avoid the motion interference caused by the rotating shaft and the second transmission shaft arranged on the same gear, etc., the movement mechanism further comprises a driven gear meshing with the driving gear, and the driven gear is arranged on one of the rotating shafts and rotates synchronously.

[0017] Further, in order to facilitate the connection between the guide vane and the first transmission shaft, the movement mechanism further comprises a connecting shaft connecting the first transmission shaft and the guide vane.

[0018] The technical scheme adopted by the utility model to solve the second technical problem is: a refrigeration assembly, comprising a compressor and a condenser, characterized in that: the air supply assembly is applied.

[0019] The technical scheme adopted by the utility model to solve the third technical problem is: a refrigeration range hood, comprising a smoke suction assembly, the smoke suction assembly comprising a smoke collecting hood, a fan frame arranged above the smoke collecting hood, and a fan system arranged in the fan frame; characterized in that: the refrigeration range hood applies the refrigeration assembly, the refrigeration assembly is arranged above the smoke suction assembly, and the refrigeration assembly further comprises a shell, the compressor, the air supply assembly, and the condenser are arranged in the shell, and the shell is provided with an air inlet at a position opposite to the inlet of the air inlet channel.

[0020] In order to avoid the exposure of the shell and facilitate the supply of cold air, the refrigeration range hood further comprises an outer cover covering the outer side of the fan frame and the refrigeration assembly, the outer cover is provided with a cold air outlet, and the air outlet assembly is arranged at the cold air outlet.

[0021] Compared with the prior art, the utility model has the advantages that: by arranging the valve plate assembly in the air inlet channel, the air inlet channel can be opened and closed, and then the opening and closing of the air inlet channel of the air supply assembly can be controlled according to the use condition or user demand, for example, when the refrigeration assembly is closed, the air inlet channel is closed through the valve plate assembly, so as to prevent the oil smoke particles or dust from entering the filter screen or the evaporator through the air inlet channel, reduce the risk of filter screen failure (prolong the filter screen replacement period), and reduce the risk of oil accumulation and blockage of the evaporator. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is an open state schematic view of the range hood of the utility model embodiment (from front to back);

[0023] Figure 2 It is a schematic view of the range hood of the utility model embodiment (from back to front);

[0024] Figure 3A schematic view of a hidden part of a range hood (seen from back to front) of an embodiment of the present application;

[0025] Figure 4 A schematic view of an opening state of a air supply assembly of a range hood of an embodiment of the present application;

[0026] Figure 5 A schematic view of an air supply assembly of a range hood of an embodiment of the present application (from different view angle); Figure 4

[0027] Figure 6 A schematic view of an exploded structure of an air supply assembly of a range hood of an embodiment of the present application;

[0028] Figure 7 A schematic view of a part of an air supply assembly of a range hood of an embodiment of the present application; Figure 6

[0029] Figure 8 A schematic view of a part of an air supply assembly of a range hood of an embodiment of the present application;

[0030] Figure 9 A schematic view of a part of a moving mechanism of an air supply assembly of a range hood of an embodiment of the present application;

[0031] Figure 10 A schematic view of a closing state of a range hood of an embodiment of the present application;

[0032] Figure 11 A schematic view of a closing state of an air supply assembly of a range hood of an embodiment of the present application. DETAILED DESCRIPTION

[0033] Embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements having the same or similar functions.

[0034] ​​In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and are not indicative or suggestive of the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, since the disclosed embodiments of the utility model can be arranged in different directions, so these directional terms are only as an illustration and should not be regarded as a limitation, for example, "upper", "lower" are not necessarily limited to the direction opposite or consistent with the direction of gravity. In addition, the features defined as "first", "second" can be explicitly or implicitly include one or more features.

[0035] Referring to Figures 1-7 A refrigeration range hood, comprising a fume suction assembly and a refrigeration assembly, the fume suction assembly can comprise a common fume collecting cover 11, a fan frame 12 arranged above the fume collecting cover 11 and a fan system 13 arranged in the fan frame 12. The refrigeration assembly is arranged above the fume suction assembly and comprises a compressor 21, a condenser 23 and a housing 24, the compressor 21 and the condenser 23 are arranged in the housing 24. The range hood further comprises an outer cover 3 arranged outside the fan frame 12 and the refrigeration assembly. The outer cover 3 is provided with a cold air outlet 31 for blowing the cold air generated by the refrigeration assembly.

[0036] The refrigeration assembly further comprises an air supply assembly, the air supply assembly comprises an evaporator 22, a cold air fan 25, a valve plate assembly 26, a wind guide 27 and an air outlet assembly 28, the evaporator 22 is supported and arranged in the housing 24 by a support 221, the compressor 21, the evaporator 22 and the condenser 23 cooperate to realize the refrigeration principle of the existing air conditioner. The housing 24, such as the top of the housing 24, is provided with an air inlet 241 to facilitate the suction of normal temperature air in the kitchen room to exchange heat with the evaporator 22. The cold air fan 25 is arranged adjacent to the evaporator 22, the air outlet assembly 28 is arranged at the cold air outlet 31 of the outer cover 3, and the cold air fan 25 and the air outlet assembly 28 are connected through the wind guide 27, so that the cold air exchanged with the evaporator 22 can be blown out to the kitchen room space through the cold air fan 25, the wind guide 27 and the air outlet assembly 28.

[0037] The top of the support 221 is open to form an air inlet passage 222, the inlet of the air inlet passage 222 is opposite to the air inlet 241, the air inlet passage 222 and the evaporator 22 are in fluid communication, and the valve plate assembly 26 is arranged in the air inlet passage 222 to open and close the air inlet passage 222.

[0038] In combination Figure 8 and Figure 9 The air outlet assembly 28 comprises a frame 281 fixed to the outer cover 3 and air guide vanes 282 arranged in the frame 281, the frame 281 is shaped and sized to fit the cold air outlet 31 of the outer cover 3. The frame 281 is hollow, forming an air outlet channel 283 therein, the air guide vanes 282 are arranged in the air outlet channel 283, so as to open and close the air outlet channel 283, and thus open and close the cold air outlet 31.

[0039] In this embodiment, the valve plate assembly 26 and the air guide vanes 282 are linked by a movement mechanism. Specifically, the valve plate assembly 26 comprises at least two parallel arranged valve plates 261 and a first connecting rod 262 connecting the valve plates 261, each valve plate 261 has a rotation shaft 263, each rotation shaft 263 is connected to the first connecting rod 262 by a second connecting rod 264, the extension direction of the first connecting rod 262 is perpendicular to the rotation shaft 263. In this embodiment, the rotation shaft 263 extends forward and backward. Alternatively, there can be only one valve plate 261, in which case the first connecting rod 262 and the second connecting rod 264 are no longer needed.

[0040] The moving mechanism comprises a motor 291, a connecting shaft 292, a first transmission shaft 293, a gear pair, a driving gear 295, a driven gear 296 and a second transmission shaft 297. The motor 291 is preferably a step motor. The motor 291 drives the air guide blade 282 to rotate. The rotation axis of the air guide blade 282 extends in the left-right direction. The connecting shaft 292 is connected with the air guide blade 282 and the first transmission shaft 293 respectively. The connecting shaft 292 rotates synchronously with the air guide blade 282 as the rotation shaft of the air guide blade 282. The first transmission shaft 293 extends in the left-right direction. When the air guide blade 282 rotates, the first transmission shaft 293 rotates around its own axis under the drive of the transmission shaft 292. The air guide blade 282 and the connecting shaft 292, and the connecting shaft 292 and the first transmission shaft 293 can rotate synchronously through key groove cooperation (for easy connection, a connecting seat can be arranged on the air guide blade 282). The gear pair is connected between the first transmission shaft 293 and the second transmission shaft 297, and comprises a driving bevel gear 2941 and a driven bevel gear 2942 which mesh with each other. The driving bevel gear 2941 is arranged on the first transmission shaft 293 to realize linkage, and the driven bevel gear 2942 is arranged on the second transmission shaft 294 to realize linkage. The gear pair realizes movement direction change. The driving gear 295 and the driven gear 296 are both spur gears and mesh with each other. The driven gear 296 can be arranged on one of the rotation shafts 263 to drive the valve plate 261 to rotate, thereby realizing linkage between the valve plate 261 and the air guide blade 282. The structure is simple and the cost is low. Alternatively, the driving gear 295 can be arranged directly on the rotation shaft 263, thereby eliminating the need for the driven gear 296. The number of the driven gears 296 can be increased, and the driven gears 296 mesh with each other in sequence to realize transmission.

[0041] In the embodiment, the rotation axes of the valve plate 261 and the air guide blade 282 are perpendicular to each other, so that the gear pair is needed to realize movement direction change. Alternatively, the rotation axes of the valve plate 261 and the air guide blade 282 can be parallel to each other. When movement direction change is needed, the gear pair described above can be used. Alternatively, the valve plate assembly 26 and the air outlet assembly 28 can be driven by independent moving mechanisms.

[0042] The air supply assembly further comprises a filter screen 30 which is arranged at least partially in the bracket 221, between the valve plate assembly 26 and the evaporator 22, i.e. on the air inlet path, downstream of the valve plate assembly 26 and upstream of the evaporator 22.

[0043] Referring again to Figure 1 When the refrigeration function is started, the air guide blade 282 of the air outlet assembly 28 opens the air outlet channel 283, and drives the valve plate 261 of the air inlet channel 222 to open. Referring to Figure 10 and Figure 11When the refrigeration function is closed, the air outlet assembly 28 closes the air outlet channel 283, and the valve plate 261 of the air inlet channel 222 is closed, preventing the kitchen oil smoke large particle material or dust from falling on the filter screen 30, causing the filter screen 30 and the evaporator 22 to be blocked.

[0044] The "fluid communication" in the utility model refers to the spatial position relationship between two components or parts (hereinafter collectively referred to as the first part, the second part), that is, the fluid (gas, liquid or mixture of the two) can flow or / and be transported from the first part to the second part along the flow path, which can be directly connected between the first part and the second part, or indirectly connected between the first part and the second part through at least one third party, which can be a fluid passage such as a pipeline, a channel, a conduit, a flow guide, a hole, a groove, etc., or a chamber allowing fluid to flow or a combination thereof.

Claims

1. An air supply assembly of a refrigeration assembly, comprising an evaporator (22), a filter screen (30), an air outlet assembly (28), and a cooling air fan (25) for sucking air into heat exchange with the evaporator (22) and blowing the cooled air to the air outlet assembly (28), the evaporator (22) and at least part of the filter screen (30) being arranged in a support (221) having an air inlet channel (222) formed therein for sucking air into, and the air outlet assembly (28) comprising a frame (281), air guide vanes (282), and an air outlet channel (283) formed in the frame (281) and having the air guide vanes (282) capable of opening and closing the air outlet channel (283); characterized in that: the air supply assembly further comprises a valve plate assembly (26) capable of opening and closing the air inlet channel (222), and the filter screen (30) is arranged between the valve plate assembly (26) and the evaporator (22). The valve plate assembly (26) comprises valve plates (261), a first connecting rod (262), and a second connecting rod (264), the valve plates (261) being at least two in number and arranged side by side, each valve plate (261) having a rotation shaft (263) capable of rotating relative to the support (221), and each rotation shaft (263) being connected to the first connecting rod (262) through the second connecting rod (264).

2. The air supply assembly of claim 1, wherein: The valve plate assembly (26) comprises valve plates (261), each valve plate (261) having a rotation shaft (263) capable of rotating relative to the support (221).

3. The air supply assembly of claim 1, wherein: The air supply assembly further comprises a motion mechanism for driving the air guide vanes (282) and the valve plates (261) in linkage, the motion mechanism comprising a motor (291) for driving the air guide vanes (282) to rotate relative to the frame (281) so as to open and close the air outlet channel (283), a first transmission shaft (293) rotating with the air guide vanes (282), and a driving gear (295) in transmission connection with the first transmission shaft (293), the driving gear (295) directly or indirectly driving the rotation shafts (263) of the valve plate assembly (26) to rotate.

4. A blast assembly for a refrigeration assembly according to claim 2 or 3, characterised in that: The rotation axes of the air guide vanes (282) and the valve plates (261) are perpendicular to each other, the motion mechanism further comprising a gear pair and a second transmission shaft (297), the gear pair comprising a driving bevel gear (2941) and a driven bevel gear (2942) in mesh with each other, the driving bevel gear (2941) being arranged on the first transmission shaft (293) to realize linkage, the driven bevel gear (2942) being arranged on the second transmission shaft (297) to realize linkage, and the driving gear (295) being arranged on the second transmission shaft (297).

5. The air supply assembly of claim 4, wherein: The motion mechanism further comprises a driven gear (296) in mesh with the driving gear (295), the driven gear (296) being arranged on one of the rotation shafts (263) to rotate synchronously.

6. The air supply assembly of claim 4, wherein: The motion mechanism further comprises a connecting shaft (292) connecting the first transmission shaft (293) and the air guide vanes (282).

7. The air supply assembly of claim 4, wherein: The air supply assembly as claimed in any one of claims 1 to 7 is applied.

8. A refrigeration assembly comprising a compressor (21) and a condenser (23), characterized by: ​ 9. A refrigerating range hood comprising an extraction hood assembly, said extraction hood assembly comprising an extraction hood (11), a fan stand (12) arranged above the extraction hood (11), and a fan system (13) arranged in the fan stand (12); characterized in that: The refrigeration range hood applies the refrigeration assembly as claimed in claim 8, which is arranged above the oil suction assembly, and further comprises a housing (24), wherein the compressor (21), the air supply assembly and the condenser (23) are arranged in the housing (24), and the housing (24) is provided with an air inlet (241) at a position opposite to the inlet of the air inlet channel (222).

10. The oil-extraction range hood according to claim 9, characterized in that: The refrigeration range hood further comprises an outer cover (3) covering the outer side of the fan frame (12) and the refrigeration assembly, wherein the outer cover (3) is provided with a cold air outlet (31), and the air outlet assembly (28) is arranged at the cold air outlet (31).

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