CN213664078U - Electric heating lunch box and upper cover thereof - Google Patents

Abstract

The utility model provides an electric heating lunch box and an upper cover thereof. The upper cover comprises an upper shell with a second accommodating cavity and an electric cooking element arranged on the upper shell; the top of going up the casing is equipped with exhaust passage, and exhaust passage's last end is the gas vent of exposing the casing outward, and exhaust passage's lower end is equipped with the air inlet, is equipped with the detachable sealing plug at the air inlet. The utility model discloses can keep the drying in the exhaust passage, prevent to form the incrustation scale in exhaust passage and take place to block up, multiply the bacterium because of remaining the comdenstion water in reducing exhaust passage to improve the sanitary condition of use of electric heat lunch-box.

Description

Electric heating lunch box and upper cover thereof

Technical Field

The utility model relates to a culinary art tableware field especially relates to an electric heat lunch-box and upper cover of electric heat lunch-box.

Background

This section merely provides background information related to the present application so as to enable those skilled in the art to more fully and accurately understand the present application, which is not necessarily prior art.

The existing electric heating lunch box mainly comprises an upper cover and a main body, wherein the upper cover covers the main body to form a relatively closed cooking cavity when in use, and a heating body is arranged in the main body to play a role in heating food and even cooking food. The upper cover is simple in structure and easy to deform, the upper cover is generally provided with the exhaust holes, and condensed water accumulated in the exhaust holes easily forms water scales to block the exhaust holes, so that unsmooth exhaust is caused, and even certain potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an electric heating lunch box and an upper cover thereof, which can effectively prevent the exhaust passage of the upper cover from forming scale and blocking.

The utility model provides an upper cover of an electric heating lunch box, which comprises an upper shell with a second holding cavity and an electric cooking element arranged on the upper shell; the top of going up the casing is equipped with exhaust passage, and exhaust passage's last end is the gas vent of exposing the casing outward, and exhaust passage's lower end is equipped with the air inlet, is equipped with the detachable sealing plug in air inlet department.

In a preferred embodiment, the vent passage extends longitudinally to the top of the second receiving chamber, the vent passage is communicated with the second receiving chamber when the sealing plug is detached, and the vent passage and the second receiving chamber are blocked when the sealing plug is installed.

In a preferred embodiment, the upper housing includes an outer housing and an inner housing disposed within the outer housing, the exhaust passage is disposed between the outer housing and the inner housing, the air inlet is disposed on the inner housing, and the air outlet is disposed on the outer housing.

In a preferred embodiment, the inner housing is provided with a concave heating water tank, and the electric cooking element is fixed on the heating water tank.

In a preferred embodiment, a seal is provided between the electric cooking element and the heating water bath to prevent liquid from leaking from a gap between the electric cooking element and the heating water bath.

In a preferred embodiment, a sealing ring is provided on the sealing plug.

The utility model discloses an electric heating lunch box, which comprises a lunch box main body, wherein the lunch box main body comprises a lower shell with a first accommodating cavity and a first electric heating body arranged on the lower shell; the device also comprises the upper cover; the electric heating lunch box comprises a first working state that the upper cover is covered on the lunch box body and a second working state that the upper cover is turned over to the second containing cavity and the opening of the second containing cavity faces upwards; the sealing plug is arranged at the air inlet to seal the air inlet only when the electric heating lunch box is in the second working state.

In a preferred embodiment, the lower shell is further provided with a power supply end electrically connected with the first electric heating element and a power switch connected in series between the power supply end and the first electric heating element.

In a preferred embodiment, the lower shell is further provided with a first coupler electrically connected with a power supply end of the power supply, and the upper shell is further provided with a second coupler electrically connected with the electric cooking element; when the electric heating lunch box is in the second working state, the upper cover and the lunch box body are arranged side by side, and the first coupler is electrically coupled with the second coupler.

In a preferred embodiment, one coupler is a male coupler end protruding out of one side of the lower housing, the second coupler is a female coupler end recessed into one side of the upper housing, and the female coupler end and the male coupler end are connected by plugging to realize electrical coupling.

In a preferred embodiment, the first electric heating element is provided at the bottom of the lower case, and the electric cooking element is provided at the top of the upper case.

In a preferred embodiment, the upper periphery of the lower shell is provided with a lower frame, and the lower periphery of the upper shell is provided with an upper frame; when the electric heating lunch box is in the first working state, the upper frame and the lower frame are in seamless fit connection.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses an upper cover structure is firm to through setting up exhaust passage at the top of last casing, set up the detachable sealing plug at exhaust passage's air inlet, whether the operating condition according to electric heat lunch-box selects to utilize the sealing plug to seal the air inlet, convenient to use. Especially, electric heat lunch-box is when the second operating condition, and the gas vent is down, lets the electric heat lunch-box remain the comdenstion water in exhaust passage when first operating condition, and the part can be evaporated by electric cooking element electricity during operation, and partial comdenstion water can flow from the gas vent to can keep the drying in the exhaust passage, not only can prevent to form the incrustation scale in the exhaust passage and take place to block up, can also reduce and breed the bacterium because of remaining the comdenstion water in the exhaust passage, thereby improve the sanitary condition of use of electric heat lunch-box.

Drawings

Fig. 1 is a schematic three-dimensional exploded structure of an electric heating lunch box.

Fig. 2 is a schematic perspective view of the upper cover.

Fig. 3 is a schematic view of the internal structure of the upper cover.

Fig. 4 is a schematic perspective view of the lunch box body.

Fig. 5 is a partially cut-away structural schematic diagram of the electric heating lunch box in the first working state.

Fig. 6 is a schematic perspective view of the electric heating lunch box in a second working state.

Detailed Description

To further clarify the technical solutions and effects adopted by the present application to achieve the intended purpose, the following detailed description is given with reference to the accompanying drawings and preferred embodiments according to the present application. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

The "up" and "down" described in the present invention are relative position relationships in the state shown in fig. 1.

As shown in fig. 1-4, the utility model discloses an electric heating lunch box, which comprises a lunch box body 1 and an upper cover 2 which can be covered on the lunch box body 1. The lunch box body 1 includes a lower case 11 having a first accommodating chamber 13 with an upward opening, and a first electric heating unit 14 provided on the lower case 11. The upper cover 2 includes an upper housing 21 having a second receiving cavity 23 with a downward opening, and an electric cooking element 24 disposed on the upper housing 21, an exhaust channel 25 is disposed on a top of the upper housing 21, an exhaust port 252 exposed out of the upper housing 21 is disposed at an upper end of the exhaust channel 25, and an air inlet 251 is disposed at a lower end of the exhaust channel 25.

The air discharge passage 25 longitudinally extends to the top of the second accommodating cavity 24, the air inlet 251 at the lower end of the air discharge passage 25 is communicated with the second accommodating cavity 24 when the sealing plug 27 is detached, and the air inlet 251 of the air discharge passage 25 is blocked from the second accommodating cavity 24 when the sealing plug 27 is installed.

As further shown in conjunction with fig. 5 and 6. The utility model discloses an electric heating lunch-box includes that upper cover 2 covers the first operating condition (as shown in figure 5) that closes on lunch-box main part 1 and upper cover 2 overturns to the opening of second holding chamber 23 up and relative lunch-box main part 1 second operating condition (as shown in figure 6) that sets up alone. When the electric heating lunch box is in the first working state, at least the first electric heating element 14 is powered on to work so as to heat the first accommodating cavity 13, and the generated steam is upwards exhausted from the exhaust port 252 through the exhaust passage 25. When the electric heating lunch box is in the second working state, the upper cover 2 and the lunch box main body 1 are arranged side by side, the detachable sealing plug 27 is arranged at the air inlet to seal the air inlet, at the moment, the first electric heating body 14 and the electric cooking element 24 are both electrically operated, the first electric heating body 14 acts on the first accommodating cavity 13, and the electric cooking element 24 acts on the second accommodating cavity 23.

Wherein, be equipped with the sealing washer on sealing plug 27, sealing plug 27 seals the air inlet through the sealing washer, improves the sealing reliability of sealing plug 27 to the air inlet through the sealing washer.

The utility model discloses set up exhaust passage 25 at the top of last casing 21 to air inlet 251 at exhaust passage 25 sets up detachable sealing plug 27, selects whether to utilize sealing plug 27 to seal air inlet 251 according to the operating condition of electric heat lunch-box, convenient to use. Especially, when the electric heat lunch-box was in the second operating condition, gas vent 252 down, let the electric heat lunch-box remain the comdenstion water in exhaust passage 25 when first operating condition, part can be got the evaporation of electricity during operation by electric cooking element 24, and part comdenstion water can flow from gas vent 252 to can keep the drying in the exhaust passage 25, not only can prevent to form the incrustation scale in exhaust passage 25, can also reduce in the exhaust passage 25 because of remaining comdenstion water and breed the bacterium, thereby improve the sanitary condition of use of electric heat lunch-box.

As shown in fig. 3 in particular, the upper housing 21 includes an outer housing 211 and an inner housing 212 provided in the outer housing 211, the exhaust passage 25 is provided between the outer housing 211 and the inner housing 212, the air inlet 251 is provided on the inner housing 212, and the air outlet 252 is provided on the outer housing 211.

Wherein, a concave heating water tank 213 is arranged on the inner shell 212, and the electric cooking element 24 is fixed on the heating water tank 24. The advantage of setting up sunken heating water tank 213 lies in, when electric property cooking element 24 is the second electric heat-generating body, when utilizing upper cover 2 alone to heat alone, if the water in the second holding chamber 23 can concentrate on in heating water tank 213, avoids taking place dry combustion method, improves the operational reliability of electric heat lunch-box.

A sealing member 214 (for example, the sealing member 214 is also a sealing ring) is provided between the electric cooking element 24 and the heating water tank 213, and the sealing member 214 prevents liquid from leaking from a gap between the electric cooking element 24 and the heating water tank 213.

In a preferred embodiment, a seal is provided between the electric cooking element and the heating water bath to prevent liquid from leaking from a gap between the electric cooking element and the heating water bath.

The lower shell 11 is further provided with a power supply end 16 (wherein, the power supply end is a storage battery or a power supply connecting base) electrically connected with the first electric heating element 14, a first coupler 19 electrically connected with the power supply end 16, and a power switch 15 connected in series between the power supply end and the first coupler 19; the upper housing 21 is further provided with a second coupler 29 electrically connected to the electrical cooking element 24. When the electric heating lunch box is in the second working state, the upper cover 2 and the lunch box main body 1 are arranged side by side, the first coupler 19 and the second coupler 29 are electrically coupled to supply power to the electric cooking element 24 by a power supply end, the first electric heating element 14 and the electric cooking element 24 are both electrically operated, the first electric heating element 14 acts on the first accommodating cavity 13, and the electric cooking element 24 acts on the second accommodating cavity 23. Therefore, the electric heating lunch box only needs to be provided with one power supply end, and when the electric heating lunch box is in the second working state, the lunch box body 1 and the upper cover 2 share one power supply end, so that the whole structure is simplified, and the implementation cost is reduced.

The first coupler 19 is a male coupler end protruding out of the lower housing 11, the second coupler 29 is a female coupler end recessed into the upper housing 21, and the female coupler end and the male coupler end are connected by plugging to achieve electrical coupling. Therefore, in the using process, a user can conveniently combine the lunch box body 1 and the upper cover 2 by inserting and pulling the first coupler 19 on the lunch box body 1 and the second coupler 29 on the upper cover 2, and the operation and the use are very convenient.

Therefore, when the electric heating lunch box is in the first working state, the upper cover 2 is used as a common cover, and the electric heating lunch box realizes the heating and steaming functions of the traditional electric heating lunch box. Electric heat lunch-box is when second operating condition, and upper cover 2 and 1 electric coupling of lunch-box main part are in order to carry out the food culinary art simultaneously, provide diversified culinary art function, are favorable to improving the culinary art efficiency to food and satisfy the culinary art demand of user differentiation.

The electric cooking element 24 is a second electric heating element or a refrigeration module (for example, the refrigeration module is a hot spot refrigeration sheet), so that the electric cooking element 24 can correspondingly heat or refrigerate the second accommodating cavity 23. In a preferred embodiment, the first electric heating element 14 is disposed at the bottom of the lower case 11, and the electric cooking element 24 is disposed at the top of the upper case 21. In this way, the first electric heating element 14 and the electric cooking element 24 can respectively act on the first accommodating cavity 13 and the second accommodating cavity 23 from bottom to top, and the working efficiency can be improved.

In a preferred embodiment, the lower frame 12 is disposed on the upper periphery of the lower housing 11, and the combination of the lower frame 12 and the lower housing 11 makes the overall structure of the lunch box body 1 more stable and deformation resistant, thereby improving the use experience of the product. Also, the lower periphery of the upper case 21 is provided with an upper frame 22, and the entire structure of the upper cover 2 is more stable against deformation by the combination of the upper frame 22 and the upper case 21. When the electric heating lunch box is in the first working state, the upper frame 22 is in seamless fit connection with the lower frame 12, so that the first accommodating cavity 13 and the second accommodating cavity 23 form a closed cavity, and the heating efficiency of the accommodating container 3 is improved.

The top end surface of the lower frame 12 is provided with a first step portion 121, when the container 3 is placed in the first accommodating cavity 13, the peripheral edge of the container 3 is erected on the inner side of the first step portion 121, and the lower end edge of the upper frame 22 can be abutted on the outer side of the first step portion 121, so that the seamless fit connection between the upper frame 22 and the lower frame 12 is realized. Therefore, the container 3 is conveniently placed through the first step part 121, and a condition for covering the upper cover 2 on the lunch box body 1 is provided.

The lower end surface of the upper frame 22 is provided with a second step part 221, when the electric heating lunch box is in the second working state, the container 3 'is placed in the second accommodating cavity 23 of the upper cover 2, and the periphery of the container 3' is arranged on the second step part. The second stepped portion 121 is provided through the lower end surface of the upper frame 22 to facilitate the taking and placing of the container 3'. In addition, a plurality of supporting legs 28 are arranged on the top surface of the upper shell 21, and when the box body 2 is placed after being turned over, the supporting legs 28 support and place more stably, so that the use is convenient.

Referring again to the embodiment shown in fig. 5, the electric-heating lunch box is in the first working state to realize the heating and steaming functions of the conventional electric-heating lunch box. Taking out the sealing plug 27 from the upper cover 2, adding a proper amount of water into the first accommodating cavity 13, putting the container 3 into the first accommodating cavity 13, then covering the upper cover 2 on the lunch box body 1, and forming a heating cavity by the first accommodating cavity 13 and the second accommodating cavity 23; the first electric heating element 14 is powered by a power supply end on the lunch box main body 1, at the moment, the first coupler 19 is separated from the second coupler 29, the upper cover 2 does not work and is only used as a common cover body, and only the lunch box main body 1 works; when the power switch 15 is turned on, the first electric heating body 14 is electrified to start heating, steam generated in the heating cavity during heating is discharged from the exhaust port 252 through the exhaust passage 25, but part of the steam may form condensed water in the exhaust passage 25.

Referring to the embodiment shown in fig. 6 again, the electric heating lunch box is in the second working state to realize the function of cooking the upper cover 2 and the lunch box main body 1 respectively. The upper cover 2 is reversely placed on a plane, the first coupler 19 is coupled with the second coupler 29, the opening of the second accommodating cavity 12 faces upwards, the upper cover 2 and the lunch box body 1 are arranged side by side, and the sealing plug 27 seals the air outlet 252 to seal the air outlet channel 25; adding a proper amount of water into the first accommodating cavity 13 of the lunch box body 1, and also injecting a proper amount of water into the second accommodating cavity 23 of the upper cover 2 (when the electric cooking element 24 provides independent heating to the upper cover 2); the power switch 15 is turned on, the first electric heating element 14 is powered on to start heating the container 3 placed in the first accommodating cavity 13, and the electric cooking element 24 is powered on to start heating or cooling the container 3' placed in the first accommodating cavity 13. At this time, since the exhaust port 252 faces downward, the condensed water remaining in the exhaust passage 25 flows downward, and the exhaust passage is kept dry. Therefore, when the electric heating lunch box is in the second working state, the lunch box main body 1 and the upper cover 2 can work simultaneously to improve and cook two containers simultaneously, improve the cooking efficiency of food and satisfy the cooking demand of user differentiation.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. An upper cover of an electric heating lunch box comprises an upper shell with a second accommodating cavity and is characterized by also comprising an electric cooking element arranged on the upper shell; the top of going up the casing is equipped with exhaust passage, and exhaust passage's last end is the gas vent of exposing the casing outward, and exhaust passage's lower end is equipped with the air inlet, is equipped with the detachable sealing plug in air inlet department.

2. The upper cover according to claim 1, wherein the vent passage extends longitudinally to the top of the second receiving chamber, the vent passage is communicated with the second receiving chamber when the sealing plug is removed, and the vent passage and the second receiving chamber are blocked when the sealing plug is installed.

3. The upper cover according to claim 1 or 2, wherein the upper casing comprises an outer casing and an inner casing provided in the outer casing, the exhaust passage is provided between the outer casing and the inner casing, the air inlet is provided on the inner casing, and the air outlet is provided on the outer casing.

4. The upper cover as claimed in claim 3, wherein the inner housing is provided with a heating water tank having a recess, and the electric cooking element is fixed to the heating water tank.

5. The lid as claimed in claim 4, wherein a sealing member is provided between the electric cooking element and the heating water tank to prevent liquid from leaking from a gap between the electric cooking element and the heating water tank.

6. A closure according to claim 1, wherein a sealing ring is provided on the sealing plug.

7. An electric heating lunch box comprises a lunch box main body, wherein the lunch box main body comprises a lower shell with a first accommodating cavity and a first electric heating body arranged on the lower shell; characterized in that it further comprises a cover according to any one of claims 1 to 4; the electric heating lunch box is provided with a first working state that the upper cover is covered on the lunch box body and a second working state that the upper cover is turned over to the second containing cavity and the opening of the second containing cavity faces upwards; the sealing plug is arranged at the air inlet to seal the air inlet only when the electric heating lunch box is in the second working state.

8. An electric heating lunch box as claimed in claim 7, wherein the lower case is further provided with a power supply terminal electrically connected to the first electric heating element and a power switch connected in series between the power supply terminal and the first electric heating element.

9. An electrically heated lunch box according to claim 8 wherein the lower housing further comprises a first coupler electrically connected to a power supply terminal of the power supply, and the upper housing further comprises a second coupler electrically connected to the electrical cooking element; when the electric heating lunch box is in the second working state, the upper cover and the lunch box body are arranged side by side, and the first coupler is electrically coupled with the second coupler.

10. The electric lunch box of claim 9, wherein the first coupler is a male coupler end protruding out of the lower case, the second coupler is a female coupler end recessed into the upper case, and the female coupler end is connected to the male coupler end by plugging so as to electrically couple the male coupler end and the female coupler end.

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