Range hood

By wrapping a drain pipe around the outside of the compressor to dissipate heat using condensate, the problem of high temperature in the compressor of the range hood is solved, the service life of the equipment is extended, and the self-cleaning of the volute and impeller is achieved.

CN223755449UActive Publication Date: 2026-01-02NINGBO FOTILE KITCHEN WARE CO LTD
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Patent Information

Application Number
CN202520015930.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-03
Publication Date
2026-01-02
Estimated Expiration
2035-01-03

AI Technical Summary

Technical Problem

The high-temperature problem of compressors in existing range hoods has not been effectively solved, leading to damage to the lubricating oil inside the casing and shortening its service life.

Method used

A drain pipe is wrapped around the outside of the compressor to dissipate heat from the compressor casing using condensate. The high-temperature water vapor is removed by a cleaning component, which also enables self-cleaning of the volute and impeller.

Benefits of technology

It effectively reduces the temperature of the compressor casing, extends its service life, and cleans the volute and impeller through the atomization of condensate, thereby improving the operational reliability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a range hood which comprises a smoke suction assembly and a refrigeration assembly, the refrigeration assembly comprises an evaporator assembly and a compressor, the evaporator assembly comprises an evaporator and a receiving part capable of receiving condensate water generated by the evaporator, and the refrigeration assembly further comprises a drainage pipe capable of draining the condensate water in the receiving part. The drain pipe is at least partially wound on the outer side of the compressor. Compared with the prior art, the compressor has the advantage that the high temperature problem of the compressor can be solved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to an oil fume purification device, especially an oil fume extractor. BACKGROUND

[0002] The oil fume extractor is a kitchen appliance for purifying the kitchen environment, which can quickly extract and discharge the waste of the stove combustion and the oil fume generated in the cooking process to the outdoor, reduce pollution, purify air, etc.

[0003] For example, a kind of oil fume extractor disclosed in Chinese patent application No.202410432913.4, the oil fume extractor includes a casing and a fan frame, and an oil fume extractor is installed inside the fan frame, the oil fume extractor has a main motor, and a refrigeration system is installed outside the fan frame, the refrigeration system includes a compressor, a condenser and an evaporator.

[0004] The high temperature of the compressor in the above-mentioned patent has no good solution. INVENTION CONTENTS

[0005] The utility model solves the technical problems of the prior art, provides an oil fume extractor, which can solve the high temperature problem of the compressor.

[0006] The utility model adopts the technical scheme to solve the above technical problems: an oil fume extractor, comprising a smoke suction assembly and a refrigeration assembly, the refrigeration assembly includes an evaporator assembly and a compressor, characterized in that: the evaporator assembly includes an evaporator and a receiving part capable of receiving the condensed water generated by the evaporator, the refrigeration assembly further includes a drain pipe capable of discharging the condensed water in the receiving part, and the drain pipe is at least partially wound outside the compressor.

[0007] By winding the drain pipe at least partially outside the compressor, the condensed water in the drain pipe is used to cool the shell of the compressor, which can effectively remove the shell temperature of the compressor.

[0008] Further, to facilitate the setting of the compressor and the evaporator assembly of the refrigeration assembly, the refrigeration assembly includes a first shell, the evaporator assembly and the compressor are arranged inside the first shell, the evaporator assembly includes a second shell, and the evaporator is arranged in the second shell.

[0009] Preferably, the receiving part is part of the second shell, so that the receiving part does not need to be separately arranged.

[0010] In order to cool the shell of the compressor and clean the inside of the volute with condensed water, the smoke suction assembly includes a fan, and the fan includes a volute and an impeller arranged in the volute.

[0011] The range hood further comprises a cleaning member for cleaning the inside of the volute and the impeller, the drain pipe comprises a drain pipe input end, a drain pipe output end and a drain pipe body arranged between the drain pipe input end and the drain pipe output end, the drain pipe body is at least partially arranged outside the compressor, the drain pipe input end is in communication with the receiving part, and the cleaning member comprises a cleaning member input end and a cleaning member output end, the cleaning member output end is located inside the volute, and the cleaning member input end is in communication with the drain pipe output end.

[0012] In order to be able to discharge the cleaned sewage, the smoke suction assembly further comprises a third shell, the fan is arranged in the third shell, the bottom of the volute is provided with a first sewage discharge hole for discharging the cleaned sewage to the bottom of the third shell, and the bottom of the third shell is provided with a second sewage discharge hole for discharging the sewage.

[0013] In order to be able to receive the cleaned sewage, the range hood further comprises an oil cup for receiving the oil generated by the smoke suction assembly and the sewage discharged from the second sewage discharge hole.

[0014] In order to be able to receive the cleaned sewage, the range hood further comprises an oil cup for receiving the oil generated by the smoke suction assembly and the sewage discharged from the second sewage discharge hole.

[0015] In order to realize better heat dissipation, preferably, the drain pipe is a metal pipe.

[0016] Compared with the prior art, the range hood has the advantages that the drain pipe is at least partially wound outside the compressor, the condensate water in the drain pipe is used to dissipate heat of the shell of the compressor, and the temperature of the shell of the compressor can be effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 FIG. 1 is a schematic view of a range hood according to an embodiment of the present application;

[0018] Fig. 2 FIG. 2 is a sectional view of the range hood according to the embodiment of the present application;

[0019] Fig. 3 FIG. 3 is a partial sectional view of the range hood according to the embodiment of the present application. DETAILED DESCRIPTION

[0020] The present application will be further described in detail below with reference to the drawings.

[0021] In the description of the utility model, it needs to be 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" is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element 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 orientation indicating 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 limited by "first", "second" can explicitly or implicitly include one or more features.

[0022] Referring to Figs. 1-2 An oil fume extractor comprises an oil fume suction assembly 2 and a refrigeration assembly 1 arranged above the oil fume suction assembly 2.

[0023] The refrigeration assembly 1 comprises a first shell 11, an evaporator assembly 12, a compressor 15 and a condenser 14. The evaporator assembly 12, the compressor 15 and the condenser 14 are arranged in the first shell 11, and the evaporator assembly 12, the compressor 15 and the condenser 14 are connected in communication through refrigerant pipelines. The working principle of the refrigeration assembly 1 is the same as that of the prior art, and will not be described herein. The refrigeration assembly 1 of the embodiment is modularly designed, facilitating disassembly and repair.

[0024] The evaporator assembly 12 comprises a second shell 121 and an evaporator 122 arranged in the second shell 121. The second shell 121 comprises a receiving portion 1211 capable of receiving the condensed water generated by the evaporator 122. The refrigeration assembly 1 further comprises a drain pipe 13 capable of draining the condensed water in the receiving portion 1211, and the drain pipe 13 is arranged around the outer side of the compressor 15. Preferably, the drain pipe 13 is a metal pipe.

[0025] Referring to Figs. 2-3, the smoke suction assembly 2 comprises a third shell 21 and a fan 22 arranged in the third shell 21, the fan 22 comprises a volute 221 and an impeller 222 arranged in the volute 221, the range hood further comprises a cleaning piece 3 for cleaning the inside of the volute 221 and the impeller 222, the drain pipe 13 comprises a drain pipe input end 131, a drain pipe output end 132 and a drain pipe body 133 arranged between the drain pipe input end 131 and the drain pipe output end 132, the drain pipe body 133 is at least partially wound outside the compressor 15, the drain pipe input end 131 is in communication with the receiving part 1211, the cleaning piece 3 comprises a cleaning piece input end 31 and a cleaning piece output end 32, the cleaning piece output end 32 is located inside the volute 221, and the cleaning piece input end 31 is in communication with the drain pipe output end 132.

[0026] The highest temperature of the shell of the compressor 15 can reach about 100℃ after the compressor 15 is started, and long-time high-temperature operation can damage the lubricating oil in the shell, thereby greatly shortening the service life of the compressor 15. By winding the drain pipe body 133 outside the compressor 15, the condensate water in the drain pipe body 133 can effectively dissipate the temperature of the shell of the compressor 15.

[0027] The condensate water flowing through the part of the drain pipe body 133 wound outside the compressor 15 absorbs the temperature of the compressor 15 and becomes high-temperature hot water, which enters the inside of the volute 221 through the cleaning piece 3, collides with the high-speed rotating impeller 222 to be atomized, and the atomized particles are discharged with the high-speed airflow, and at the same time, the hot water vapor realizes self-cleaning of the volute 221, the impeller 222 and the inner wall of the flue.

[0028] A first drain hole 2211 is arranged at the bottom of the volute 221 to drain the sewage generated after cleaning to the bottom of the third shell 21, and a second drain hole 211 is arranged at the bottom of the third shell 21 to drain the sewage. The range hood further comprises an oil cup 4 for receiving the oil generated by the smoke suction assembly 2 and the sewage discharged from the second drain hole 211.

Claims

1. A range hood comprising a smoke suction assembly (2) and a refrigeration assembly (1) comprising an evaporator assembly (12) and a compressor (15), characterized in that: The evaporator assembly (12) comprises an evaporator (122) and a receiving portion (1211) capable of receiving the condensed water generated by the evaporator (122), and the refrigeration assembly (1) further comprises a drain pipe (13) capable of draining the condensed water in the receiving portion (1211), wherein the drain pipe (13) is at least partially arranged outside the compressor (15).

2. The hood according to claim 1, characterized in that: The refrigeration assembly (1) comprises a first shell (11), and the evaporator assembly (12) and the compressor (15) are arranged inside the first shell (11), and the evaporator assembly (12) comprises a second shell (121), and the evaporator (122) is arranged inside the second shell (121).

3. The hood according to claim 2, characterized in that: The receiving portion (1211) is a part of the second shell (121).

4. The hood according to claim 1, characterized in that: The smoke suction assembly (2) comprises a fan (22), and the fan (22) comprises a volute (221) and an impeller (222) arranged inside the volute (221). The range hood further comprises a cleaning member (3) for cleaning the inside of the volute (221) and the impeller (222), the drain pipe (13) comprises a drain pipe input end (131), a drain pipe output end (132) and a drain pipe body (133) arranged between the drain pipe input end (131) and the drain pipe output end (132), the drain pipe body (133) is at least partially arranged outside the compressor (15), the drain pipe input end (131) is in communication with the receiving portion (1211), and the cleaning member (3) comprises a cleaning member input end (31) and a cleaning member output end (32), the cleaning member output end (32) is located inside the volute (221), and the cleaning member input end (31) is in communication with the drain pipe output end (132).

5. The hood according to claim 4, characterized in that: The smoke suction assembly (2) further comprises a third shell (21), the fan (22) is arranged inside the third shell (21), a bottom of the volute (221) is provided with a first drain hole (2211) for draining the sewage generated after cleaning to the bottom of the third shell (21), and the bottom of the third shell (21) is provided with a second drain hole (211) for draining the sewage.

6. The hood according to claim 5, characterized in that: The range hood further comprises an oil cup (4) for receiving the oil generated by the smoke suction assembly (2) and the sewage drained from the second drain hole (211).

7. The hood according to claim 4, characterized in that: The range hood further comprises an oil cup (4) for receiving the oil generated by the smoke suction assembly (2) and the sewage drained from the second drain hole (211).

8. The hood according to any one of claims 1-7, characterized in that: The drain pipe (13) is a metal pipe.

Citation Information

Patent Citations

  • Range hood and intelligent starting control method thereof

    CN118274352A