Refrigeration type range hood

Abstract

An oil smoke suction fan, a compressor, a condenser, an evaporator and an indoor unit fan are installed in a machine shell, a smoke inlet is communicated with an air inlet of the oil smoke suction fan through a smoke exhaust channel, a smoke baffle is installed at the smoke inlet, a heat dissipation air inlet is communicated with the air inlet of the oil smoke suction fan to form a heat dissipation air channel, and the condenser is arranged in the heat dissipation air channel. An air valve is installed in the heat dissipation air channel, the air valve is arranged on the downstream of the condenser in the air flowing direction, and the range hood achieves switching of a refrigeration mode and an oil smoke suction mode by controlling the smoke baffle and the air valve. When the refrigeration type extractor hood is in a refrigeration mode, heat of the condenser is discharged outwards through the oil smoke suction fan, the influence on the oil smoke suction effect is small, the air valve prevents oil smoke from polluting the condenser, the extractor hood can automatically turn on or turn off an air conditioner according to the height of the room temperature, and when the refrigeration type extractor hood is in the refrigeration mode, the smoke baffle closes the smoke inlet to prevent cold energy from being sucked away by the oil smoke suction fan. And the energy efficiency of the air conditioner is improved by lifting the gear of the oil smoke suction fan.

Description

TECHNICAL FIELD

[0001] The utility model relates to a range hood, especially to a refrigeration type range hood. BACKGROUND

[0002] In order to solve the pain point of kitchen stuffy in summer, people invented a refrigeration type range hood, which adds an air conditioning component on the basis of the range hood platform, and can realize all functions of the range hood and the function of air conditioner. The compressor, condenser and evaporator of the air conditioning component are connected through the refrigerant pipeline. The existing refrigeration type range hood usually installs the condenser in the oil smoke channel of the range hood. When the user uses the kitchen air conditioner in the kitchen, the heat dissipation wind of the kitchen air conditioner is discharged through the public flue. On the one hand, it occupies the effective wind volume of the range hood itself, affecting the oil smoke effect, on the other hand, the condenser is in the oil smoke channel, and the oil smoke wind passes through the condenser, so that the condenser has the risk of being polluted by oil dirt, and the reliability of the condenser is low. For example, the patent No. 201620118025.6 (the authorized announcement No. CN 205481215U) of Chinese utility model patent discloses an oil smoke extractor. The condenser of the oil smoke extractor is installed downstream of the oil smoke fan. When the range hood and the air conditioner are opened at the same time, the wind volume of the range hood can be used to cool the condenser, so as to improve the heat exchange efficiency of the condenser, and then improve the energy efficiency of the air conditioner. However, the range hood will also suck the indoor air outward at the same time, which will cause a part of cold air to be sucked away. For example, in the case of food preparation mode, since there is no requirement for the wind volume of the range hood, if the oil smoke fan keeps normal speed, too much cold energy will be sucked away. In summary, the existing refrigeration type range hood needs to be further improved. CONTENT OF THE UTILITY MODEL

[0003] The utility model solves the technical problem in the prior art, and provides a refrigeration type range hood which can avoid the pollution of the condenser by oil smoke and the suction of indoor cold energy by the oil smoke fan in refrigeration mode.

[0004] The utility model discloses a technical scheme that solves the above technical problem is as follows: a refrigeration type range hood, including machine shell, install oil smoke fan, compressor, condenser, evaporimeter and inner machine fan in the machine shell, the compressor, condenser and evaporimeter are linked through the communication of refrigerant pipeline, the machine shell has the smoke inlet and exhaust passage, the smoke inlet is linked through exhaust passage and the air inlet of oil smoke fan, the smoke inlet is installed with the smoke baffle, its characterized in that: the machine shell is equipped with the heat dissipation air inlet, the heat dissipation air inlet is linked with the air inlet of oil smoke fan and forms the heat dissipation air duct between heat dissipation air inlet and the air inlet of oil smoke fan, the condenser is located in the heat dissipation air duct, and the air valve that is used to open or close the heat dissipation air duct is installed in the heat dissipation air duct, along the air flow direction, the air valve is located downstream of condenser, and the range hood is switched between refrigeration mode and oil smoke mode through the control smoke baffle and air valve.

[0005] Preferably, the smoke baffle and the air valve are linked, in the oil smoke mode, the air valve moves to the position of closing the heat dissipation air duct, and the smoke baffle is opened, in the refrigeration mode, the air valve moves to the position of opening the heat dissipation air duct, and the smoke baffle is closed.

[0006] Further preferably, the air valve can have various structures, preferably, the exhaust passage is a vertical passage, and the air valve is a telescopic valve arranged above the exhaust passage, in the oil smoke mode, the telescopic valve extends outward to separate the heat dissipation air duct from the exhaust passage, and in the refrigeration mode, the telescopic valve retracts inward to connect the heat dissipation air duct with the exhaust passage.

[0007] The machine shell can have various structures, preferably, the machine shell includes an upper box body and a lower box body, the oil smoke fan is installed in the upper box body, and the smoke inlet is arranged on the lower box body.

[0008] In order to enable the hot air at the condenser to smoothly enter the oil smoke fan, the air inlet of the oil smoke fan is a single-sided air inlet and is arranged at the rear side of the oil smoke fan, and the heat dissipation air duct is arranged directly above the exhaust passage.

[0009] In order to blow cold air from the front of the machine shell, an air outlet module is installed on the upper part of the front of the upper box body, and the air outlet of the inner machine fan is connected with the air outlet module.

[0010] The compressor and the inner machine module can have multiple installation positions, preferably, the compressor is arranged in the upper box body and located at the side of the oil smoke fan, the evaporimeter and the inner machine fan are integrated on the inner machine module, the inner machine module is arranged above the compressor, an air outlet cover is installed on the air outlet of the oil smoke fan, and the air outlet cover and the inner machine module are respectively arranged on the left and right sides of the oil smoke fan.

[0011] In order to detect the indoor temperature, a temperature sensor for detecting the external temperature of the casing is installed on the casing.

[0012] In order to achieve the treatment of air conditioner condensate, a condensate treatment module is also installed inside the casing. The condensate treatment module collects the condensate that condenses on the surface of the evaporator and uses a water pump to transport the collected condensate to the condenser.

[0013] In a further preferred embodiment, the condensate treatment module includes a water collection box, a water outlet pipe, and a nozzle. The water collection box collects condensate, the nozzle is installed on the water outlet pipe and faces the condenser surface, and the water pump delivers the condensate in the water collection box to the nozzle through the water outlet pipe. In the condenser cleaning mode, the water pump is turned on.

[0014] Compared with the prior art, the advantages of this utility model are as follows: This cooling range hood switches between cooling mode and fume extraction mode by controlling the smoke baffle and the air valve. In cooling mode, the heat of the condenser can be discharged to the outside through the fume extraction fan, which has little impact on the fume extraction effect. The air valve can prevent oil fumes from contaminating the condenser, and the condenser has high reliability. This range hood can automatically turn the air conditioner on or off according to the room temperature. In cooling mode, the smoke baffle closes the smoke inlet to prevent the cold air from being drawn away by the fume extraction fan. The air conditioner's energy efficiency can be improved by increasing the speed of the fume extraction fan. In addition, after the air conditioner is turned off, the water pump can be turned on to deliver the condensate to the high-temperature condenser, and the heat of the condenser is used to evaporate the condensate. The condensate is finally blown into the public flue or flows into the oil cup of the range hood, achieving effective treatment of the condensate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the range hood according to an embodiment of the present utility model (cooling mode);

[0016] Figure 2 for Figure 1 The diagram shows the structure of the range hood from another angle.

[0017] Figure 3 This is a schematic diagram of the structure of a range hood according to an embodiment of the present utility model (condensate water treatment mode);

[0018] Figure 4 This is a schematic diagram of the structure of the range hood according to an embodiment of the present utility model (range hood extraction mode);

[0019] Figure 5 for Figure 4 The diagram shows the structure of the range hood from another angle.

[0020] Figure 6 This is a connection diagram of the air conditioning assembly according to an embodiment of the present utility model;

[0021] Figure 7 This is a flowchart illustrating the control method of the range hood according to an embodiment of the present invention. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0023] like Figures 1 to 6 As shown, the refrigerated range hood of this embodiment includes a housing 1. A range hood fan 2, a compressor 3, a condenser 4, an evaporator 5, and an indoor fan 6 are installed inside the housing 1. The compressor 3, condenser 4, and evaporator 5 are connected via refrigerant piping 7. Specifically, the housing 1 includes an upper casing 101 and a lower casing 102. The range hood fan 2 is installed inside the upper casing 101, and the lower casing 102 has a smoke inlet 103 with a baffle plate 8 installed thereon. The housing 1 has an exhaust channel 104 inside. The smoke inlet 103 is connected to the air inlet of the range hood fan 2 through the exhaust channel 104. The air inlet of the range hood fan 2 is a single-sided inlet located at the rear of the range hood fan 2. The exhaust channel 104 is a vertical channel located at the rear of the housing 1. An air outlet module 10 is installed on the upper front of the upper housing 101. The air outlet of the indoor unit fan 6 is connected to the air outlet module 10. When working in cooling mode, cold air is blown out through the air outlet of the air outlet module 10.

[0024] The top of the upper housing 102 is provided with a heat dissipation air inlet 105, which is connected to the air inlet of the range hood 2, forming a heat dissipation air duct 106 between the heat dissipation air inlet 105 and the air inlet of the range hood 2. The heat dissipation air duct 106 is located directly above the exhaust duct 104. The condenser 4 is located inside the heat dissipation air duct 106, and a damper 9 is installed inside the heat dissipation air duct 106, located downstream of the condenser 4 along the airflow direction. The damper 9 can be used to open or close the heat dissipation air duct 106 by controlling it. In this embodiment, the damper 9 is a telescopic valve located above the exhaust duct 104. In the fume extraction mode, the telescopic valve extends outward to separate the heat dissipation air duct 106 from the exhaust duct 104. In the cooling mode, the telescopic valve retracts inward to connect the heat dissipation air duct 106 with the exhaust duct 104.

[0025] In this embodiment, the smoke baffle 8 and the air valve 9 adopt a linkage structure. The linkage between the smoke baffle 8 and the air valve 9 is controlled by the controller. In the fume extraction mode, the air valve 9 moves to the position of closing the heat dissipation air duct 106 and the smoke baffle 8 opens. In the cooling mode, the air valve 9 moves to the position of opening the heat dissipation air duct 106 and the smoke baffle 8 closes, thereby realizing the switching between the cooling mode and the fume extraction module.

[0026] by Figure 1The direction indicated by arrow A is left. In this embodiment, the compressor 3 is located inside the upper housing 101 and to the left of the range hood 2. The evaporator 5 and the indoor unit fan 6 are integrated on the indoor unit module 11, which is located above the compressor 3 and to the upper left of the range hood. An exhaust hood 12 is installed at the air outlet of the range hood 2, located to the upper right of the range hood 2. In addition, a temperature sensor (not shown in the figure) is installed on the outside of the housing 1 to detect the temperature outside the housing 1, i.e., the indoor temperature.

[0027] This cooling range hood also features a condensate treatment module, which includes a water pump 13, a water collection box 14, a water outlet pipe 15, and a nozzle 16. The water collection box 14 is located below the indoor unit module 11 and is used to collect condensate. The nozzle 16 is mounted on the water outlet pipe 15 and faces the surface of the condenser 4. The water pump 13 delivers the condensate from the water collection box 14 to the nozzle 16 through the water outlet pipe 15. In cooling mode, the water pump 13 is turned on, and the condensate is sprayed onto the condenser 4 to dissipate heat, improve its heat exchange efficiency, and thus improve the air conditioner's energy efficiency. It also initiates the cleaning function of the condenser 4. After the air conditioner is turned off, the condenser 4 cleaning mode can be activated. In this mode, the water pump 13 is turned on, and the condensate is sprayed onto the condenser 4 to clean it. When the air conditioner is first turned off, the condenser 4 is at a high temperature, which allows the condensate to evaporate. The water vapor is blown into the external flue by the range hood fan 2, and any unused condensate flows into the oil cup.

[0028] like Figure 7 As shown, the control method for the refrigerated range hood in this embodiment includes the following steps:

[0029] S1, Begin;

[0030] S2. Determine if it is in fume extraction mode;

[0031] If so, the air valve 9 closes, the smoke baffle 8 opens, the fume extractor 2 starts working, and then proceeds to step S9;

[0032] If not, proceed to step S3;

[0033] S3. Determine if the room temperature is lower than the set temperature;

[0034] If so, proceed to step S9;

[0035] If not, proceed to step S4;

[0036] S4. Determine if the room temperature is equal to the set temperature;

[0037] If so, compressor 3 will not work, and indoor unit fan 6 will work;

[0038] If not, proceed to step S5;

[0039] S5. Turn on the air conditioner, the air valve 9 opens, the smoke baffle 8 closes, and the oil fume fan 2 runs at the initial speed.

[0040] S6. Run the set time and continue to determine whether the room temperature is greater than the set temperature;

[0041] If so, the range hood 2 will be upgraded to a higher speed, and then proceed to step S7;

[0042] If not, return to step S5;

[0043] S7. Turn off the air conditioner;

[0044] S8, Water Pump 13 Start-up Set Time;

[0045] S9, End.

[0046] In the above control method, the user can freely choose the indoor temperature for determining whether the air conditioner is on, such as setting it to 16℃ or other temperatures. In step S6, the running time can also be freely set in the program, such as 5 minutes. If the indoor temperature is still higher than the set temperature after the air conditioner has been on for 5 minutes, the range hood fan needs to be upgraded. The range hood fan 2 can be divided into P1, P2, and P3, namely low, medium, and high. For example, it can be upgraded from the initial P1 to P2, or even to P3, or from the initial P2 to P3, to improve the heat dissipation effect on the condenser 4, thereby further reducing the outlet air temperature of the indoor unit module 11 and thus lowering the indoor temperature. Finally, after the user turns off the air conditioner, the condenser cleaning mode is entered. In step S8, the start time of the water pump 13 can be programmed, for example, set to 3 minutes. Alternatively, a water level sensor can be installed in the water collection box 14 to control the state of the water pump 13 based on the water level signal from the water level sensor, thus preventing the water pump 13 from running dry.

[0047] As can be seen from the above control method, in cooling mode, the smoke baffle 8 is closed, the air valve 9 is open, the heat dissipation duct 106 is open, and the range hood 2 operates at its initial setting, which is usually P1. After the smoke baffle 9 is closed, the indoor cooling capacity will not be drawn away by the range hood 2. When the cooling system is running, the range hood 2 draws air from the side of the condenser 4 to dissipate heat from the condenser 4, and the heat from the condenser 4 is carried away by the range hood 2. In cleaning mode, the water pump 13 is turned on, pumping condensate water onto the condenser 4 to clean it. In single-fan mode, the user has turned off the cooling mode, but the range hood 2 is still running. The air valve 9 closes the heat dissipation duct 106, the smoke baffle 8 is open, and the range hood 2 operates according to the user-set setting.

[0048] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A refrigerated range hood, comprising a housing (1), wherein a range hood fan (2), a compressor (3), a condenser (4), an evaporator (5), and an indoor fan (6) are installed inside the housing (1), the compressor (3), the condenser (4), and the evaporator (5) are connected via a refrigerant pipeline (7), the housing (1) has a smoke inlet (103) and a smoke exhaust channel (104), the smoke inlet (103) is connected to the air inlet of the range hood fan (2) via the smoke exhaust channel (104), and a smoke baffle (8) is installed on the smoke inlet (103), characterized in that: The housing (1) is provided with a heat dissipation air inlet (105), which is connected to the air inlet of the fume extractor (2) and forms a heat dissipation air duct (106) between the heat dissipation air inlet (105) and the air inlet of the fume extractor (2). The condenser (4) is located in the heat dissipation air duct (106), and a damper (9) for opening or closing the heat dissipation air duct (106) is installed in the heat dissipation air duct (106). Along the air flow direction, the damper (9) is located downstream of the condenser (4). The fume extractor switches between cooling mode and fume extraction mode by controlling the smoke baffle (8) and the damper (9).

2. The refrigerated range hood according to claim 1, characterized in that: The smoke baffle (8) and the air valve (9) are linked together. In the fume extraction mode, the air valve (9) moves to the position of closing the heat dissipation air duct (106) and the smoke baffle (8) opens. In the cooling mode, the air valve (9) moves to the position of opening the heat dissipation air duct (106) and the smoke baffle (8) closes.

3. The refrigerated range hood according to claim 2, characterized in that: The exhaust duct (104) is a vertical duct, and the air valve (9) is a telescopic valve located above the exhaust duct (104). In the fume extraction mode, the telescopic valve extends outward to separate the heat dissipation duct (106) from the exhaust duct (104). In the cooling mode, the telescopic valve retracts inward to connect the heat dissipation duct (106) with the exhaust duct (104).

4. The refrigerated range hood according to claim 1, characterized in that: The housing (1) includes an upper housing (101) and a lower housing (102). The fume extractor (2) is installed inside the upper housing (101), and the smoke inlet (103) is located on the lower housing (102).

5. The refrigerated range hood according to claim 4, characterized in that: The air inlet of the fume extractor (2) is a single-sided air inlet located at the rear of the fume extractor (2), and the heat dissipation duct (106) is located directly above the exhaust duct (104).

6. The refrigerated range hood according to claim 4, characterized in that: An air outlet module (10) is installed on the upper front of the upper housing (101), and the air outlet of the indoor unit fan (6) is connected to the air outlet module (10).

7. The refrigerated range hood according to claim 4, characterized in that: The compressor (3) is located inside the upper housing (101) and on the side of the fume extractor (2). The evaporator (5) and the indoor unit fan (6) are integrated on the indoor unit module (11). The indoor unit module (11) is located above the compressor (3). The air outlet of the fume extractor (2) is equipped with an air hood (12). The air hood (12) and the indoor unit module (11) are respectively located on the left and right sides of the fume extractor (2).

8. The refrigerated range hood according to claim 1, characterized in that: A temperature sensor for detecting the external temperature of the housing (1) is installed on the housing (1).

9. The refrigerated range hood according to any one of claims 1 to 8, characterized in that: A condensate treatment module is also installed inside the housing (1). The condensate treatment module collects the condensate that condenses on the surface of the evaporator (5) and pumps the collected condensate to the condenser (4) via a water pump (13).

10. The refrigerated range hood according to claim 9, characterized in that: The condensate treatment module includes a water collection box (14), a water outlet pipe (15), and a nozzle (16). The water collection box (14) collects condensate. The nozzle (16) is installed on the water outlet pipe (15) and faces the surface of the condenser (4). The water pump (13) delivers the condensate in the water collection box (14) to the nozzle (16) through the water outlet pipe (15). In the condenser (4) cleaning mode, the water pump (13) is turned on.

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