Heat dissipation structure of air heat transfer rice cooker

Abstract

The utility model discloses a heat dissipation structure of an air-heat-transfer electric rice cooker, comprising: an outer shell, an inner cover and an inner pot; the inner cover separates the outer shell and the inner pot to form an isolated hot air circulation chamber and a heat dissipation chamber; the outer shell comprises: a base and a middle shell; the hot air assembly comprises: a motor, a hot fan and a cold fan, the hot fan is located in the hot air circulation chamber, and the cold fan is located in the heat dissipation chamber; the base is provided with an annular sleeve, and the motor is located in the sleeve; the base is provided with an air inlet corresponding to the space enclosed by the sleeve, and an air outlet is provided outside the space enclosed by the sleeve. The utility model is provided with an isolated hot air circulation chamber and a heat dissipation chamber in the body of the electric rice cooker, so that the heat is concentrated in the hot air circulation chamber, the inner pot is better heated, and the heat transfer to the heat dissipation chamber is reduced; the cold air is driven by the cold fan to enter the heat dissipation chamber and then sent out from the air outlet, so that the body is cooled down, and the cooling effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of electric rice cookers, and more particularly to a body heat dissipation structure of an air heat transfer electric rice cooker. Background Art

[0002] A rice cooker is a kitchen appliance that uses a heating tube to heat and cook. A traditional rice cooker has a heating tube at the bottom, and the heat from the heating tube is transferred to the inner pot for heating.

[0003] The electric rice cooker has an outer pot, and the outer pot has an outer shell. The heat of the heating tube mainly acts on the inner pot, but part of the heat is also transferred to the outer shell, causing the surface of the electric rice cooker to heat up, which can easily scald the user.

[0004] The applicant has developed an air heat transfer rice cooker. In order to further solve the problem of overheating of the rice cooker surface, the applicant has proposed the following technical solution. Utility Model Content

[0005] In view of this, the utility model provides a body heat dissipation structure of an air heat transfer electric rice cooker.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: the body heat dissipation structure of the air heat transfer electric rice cooker comprises: an outer shell, an inner cover body and an inner pot;

[0007] The inner cover separates the outer shell and the inner liner to form an isolated hot air circulation chamber and a heat dissipation chamber;

[0008] The housing comprises: a base and a middle shell;

[0009] Also included: a hot air component;

[0010] The hot air assembly includes: a motor, a hot fan and a cold fan coaxially mounted on the output shaft of the motor, the hot fan is located in the hot air circulation chamber, and the cold fan is located in the heat dissipation chamber;

[0011] The base is provided with an annular sleeve, and the motor is located in the sleeve; the base is provided with an air inlet corresponding to the space enclosed by the sleeve, and an air outlet is provided outside the space enclosed by the sleeve. After the cold air enters from the air inlet and flows into the heat dissipation chamber, it is sent out from the air outlet.

[0012] As a preferred solution of the utility model, a wind hood is arranged in the heat dissipation chamber corresponding to the sleeve, and through holes are arranged on the surrounding side of the wind hood. Cold air enters the space enclosed by the sleeve from the air inlet, flows out through the through holes, and is finally sent out from the air outlet.

[0013] As a preferred solution of the utility model, an opening is arranged at the center of the wind hood.

[0014] As a preferred solution of the utility model, the cooling fan is located in the housing space of the air hood.

[0015] As a preferred solution of the utility model, the top of the wind cover is in close contact with the bottom of the inner cover body, so that the air flow is squeezed and sent out from the through hole.

[0016] As a preferred solution of the utility model, the wind cover locking screw is fixed above the sleeve body.

[0017] As a preferred solution of the utility model, the inner cover body includes: a first cover body and a second cover body, the second cover body is arranged outside the first cover body, and is divided into a hot air circulation chamber and a heat dissipation chamber by the second cover body.

[0018] It can be seen from the above technical solutions that, compared with the prior art, the present invention has the following beneficial technical effects:

[0019] The utility model provides a hot air circulation chamber and a heat dissipation chamber which are isolated from each other in the body of the electric rice cooker, so that the heat is concentrated in the hot air circulation chamber, the inner pot is heated better, and the heat transfer to the heat dissipation chamber is reduced; in addition, a cold fan is provided in the heat dissipation chamber, and the cold air is driven by the cold fan to enter the heat dissipation chamber and then sent out from the air outlet, so that the body is cooled down, and the cooling effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0021] Figure 1 It is a schematic structural diagram of the air heat transfer rice cooker of the utility model;

[0022] Figure 2 It is a cross-sectional schematic diagram of the air heat transfer rice cooker of the utility model;

[0023] Figure 3 This is a schematic diagram of the air heat transfer rice cooker of the utility model after the middle shell is removed;

[0024] Figure 4 It is a schematic diagram of the base of the air heat transfer rice cooker of the utility model;

[0025] Figure 5 It is a partial explosion diagram of the air heat transfer rice cooker of the utility model.

[0026] Description of Reference Numerals

[0027] Outer shell 100; hot air circulation chamber 01; heat dissipation chamber 02; base 110; sleeve 111; air inlet 112; air outlet 113; middle shell 120; wind cover 130; through hole 131; opening 132; inner cover 200; first cover 210; second cover 220; liner 300; hot air assembly 400; motor 410; hot fan 420; cold fan 430. DETAILED DESCRIPTION

[0028] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0029] In the description of the present application, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply 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 a limitation on the present application. In the description of the present application, unless otherwise specified, "plurality" means two or more.

[0030] In the description of this application, 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 directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] For the heat dissipation structure of the air heat transfer rice cooker, please refer to Figure 1-5 As shown, it includes: an outer shell 100, an inner cover body 200, an inner liner 300 and a hot air component 400; the inner cover body 200 separates the outer shell 100 and the inner liner 300, forming an isolated hot air circulation chamber 01 and a heat dissipation chamber 02, the hot air circulates in the hot air circulation chamber 01 to heat the inner liner 300, and the cold air flows in the heat dissipation chamber 02 to dissipate the heat from the outer shell 100, that is, the heat from the body.

[0032] The shell 100 includes: a base 110 and a middle shell 120; the hot air component 400 includes: a motor 410, a hot fan 420 and a cold fan 430 coaxially installed on the output shaft of the motor 410, the hot fan 420 is located in the hot air circulation chamber 01, and the cold fan 430 is located in the heat dissipation chamber 02; the base 110 is provided with an annular sleeve 111, and the motor 410 is located in the sleeve; the base 110 is correspondingly provided with an air inlet 112 in the space enclosed by the sleeve 111, and an air outlet 113 is provided outside the space enclosed by the sleeve 111, and the cold air enters from the air inlet 112 and flows into the heat dissipation chamber 02, and is then sent out from the air outlet 113.

[0033] When the motor 410 is running, the hot fan 420 and the cold fan 430 are running at the same time. The hot fan 420 mainly promotes the hot air to circulate in the hot air circulation chamber 01 to heat the inner tank 300; while the cold fan 430 is running, it promotes the cold air to enter from the air inlet 112, and then flows in the heat dissipation chamber 02 and is sent out from the air outlet 113. In the process of the cold air flowing, the heat of the outer shell 100 is taken away.

[0034] like Figure 2 As shown, the hot air circulation chamber 01 and the heat dissipation chamber 02 are isolated by the inner cover 200, but some heat will still be transferred to the heat dissipation chamber 02 through the inner cover 200. If the heat is allowed to accumulate, the heat in the outer shell 100 will increase, thereby Figure 2 and Figure 4 It can be seen that electronic boards and other circuit components are installed in the heat dissipation chamber 02. If the heat dissipation chamber 02 is not cooled, the temperature of the housing 100 will be too high, which may easily burn the user. At the same time, electronic boards and other circuit components may be damaged or their lifespan may be affected due to the excessive temperature.

[0035] The cold fan 430 rotates to push cold air to flow in the heat dissipation chamber 02 and take away the heat, so that the body is effectively cooled.

[0036] Furthermore, a hood 130 is provided in the heat dissipation chamber 102 corresponding to the casing 111, and a through hole 131 is provided on the circumference of the hood 130. Cold air enters the space enclosed by the casing 111 from the air inlet 112, flows out through the through hole 131, and is finally sent out from the air outlet 113.

[0037] The sleeve 111 is integrally formed with the base 110 . The sleeve 111 protrudes upward. The fan cover 130 is screwed and fixed on the top of the sleeve 111 . An opening 132 is arranged at the center of the fan cover 130 . The cooling fan 430 is located in the covering space of the fan cover 130 .

[0038] Furthermore, the top of the air cover 130 is in close contact with the bottom of the inner cover body 200 , so that the airflow is squeezed and sent out from the through hole 131 .

[0039] When the cooling fan 430 is running, the cold air is drawn in axially from the air inlet 112 and blown out radially into the heat dissipation chamber 02 . During the flow of the cold air in the heat dissipation chamber 02 , the heat is taken away, and finally the cold air is sent out from the air outlet 113 .

[0040] In this way, when hot air circulates in the hot air circulation chamber 01, the heat is applied to the inner tank 300 as much as possible, reducing the heat transfer in the heat dissipation chamber 02; and the heat in the heat dissipation chamber 02 can be taken away by cold air for heat dissipation.

[0041] In one embodiment, the inner cover 200 includes: a first cover 210 and a second cover 220, wherein the second cover 220 is disposed outside the first cover 210 and is divided into a hot air circulation chamber 01 and a heat dissipation chamber 02 by the second cover 220;

[0042] Specifically, a first hot air gap is formed between the first cover body 210 and the liner 300, a second hot air gap is formed between the first cover body 210 and the second cover body 220, a hot air inlet is provided on the side of the first cover body 210, and a hot air outlet is provided on the bottom of the first cover body 220;

[0043] A first cover body 210 and a second cover body 220 are arranged in the body of the rice cooker, which can more effectively reduce the heat transfer to the heat dissipation chamber 02.

[0044] The utility model arranges a cold fan 430 in the heat dissipation chamber 02 and a hot fan 420 in the hot air circulation chamber 01. Firstly, the heat dissipation chamber 02 and the hot air circulation chamber 01 are isolated, thereby reducing the heat transfer to the heat dissipation chamber 02. The cold fan 430 drives the cold air to flow in the heat dissipation chamber 02, thereby further cooling the body.

[0045] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The heat dissipation structure of the air heat transfer rice cooker is characterized by: include: An outer shell (100), an inner cover (200) and an inner liner (300); The inner cover (200) separates the outer shell (100) and the inner liner (300), thereby forming an isolated hot air circulation chamber (01) and a heat dissipation chamber (02); The housing (100) comprises: a base (110) and a middle housing (120); It also includes: a hot air component (400), the hot air component (400) includes: a motor (410), a hot fan (420) and a cold fan (430) coaxially mounted on the output shaft of the motor (410), the hot fan (420) is located in the hot air circulation chamber (01), and the cold fan (430) is located in the heat dissipation chamber (02); The base (110) is provided with an annular sleeve (111), and the motor (410) is located in the sleeve; the base (110) is provided with an air inlet (112) corresponding to the space enclosed by the sleeve (111), and an air outlet (113) is provided outside the space enclosed by the sleeve (111); cold air enters from the air inlet (112) and flows into the heat dissipation chamber (02), and is then sent out from the air outlet (113).

2. The heat dissipation structure of the air heat transfer rice cooker according to claim 1, characterized in that: A wind hood (130) is arranged in the heat dissipation chamber (02) corresponding to the sleeve (111), and a through hole (131) is arranged on the peripheral side of the wind hood (130). Cold air enters the space enclosed by the sleeve (111) from the air inlet (112), flows out through the through hole (131), and is finally sent out from the air outlet (113).

3. The heat dissipation structure of the air heat transfer rice cooker according to claim 2, characterized in that: An opening (132) is provided at the center of the wind shield (130).

4. The heat dissipation structure of the air heat transfer rice cooker according to claim 2, characterized in that: The cooling fan (430) is located in the housing space of the wind housing (130).

5. The heat dissipation structure of the air heat transfer rice cooker according to claim 2, characterized in that: The top of the wind cover (130) is in close contact with the bottom of the inner cover body (200), so that the airflow is squeezed and sent out from the through hole (131).

6. The heat dissipation structure of the air heat transfer rice cooker according to claim 2, characterized in that: The wind cover (130) is fixed on the upper side of the sleeve body (111) by means of locking screws.

7. The heat dissipation structure of the air heat transfer rice cooker according to claim 1, characterized in that: The inner cover body (200) comprises: a first cover body (210) and a second cover body (220); the second cover body (220) is arranged outside the first cover body (210) and is divided into a hot air circulation chamber (01) and a heat dissipation chamber (02) by the second cover body (220).

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