CN202514813U

CN202514813U - Lunch box

Info

Publication number: CN202514813U
Application number: CN2012201857831U
Authority: CN
Inventors: 谢广民; 赵广吉
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-04-27
Filing date: 2012-04-27
Publication date: 2012-11-07
Anticipated expiration: 2022-04-27

Abstract

The utility model relates to a lunch box which comprises a box shell and a box cover, wherein the box shell is formed by attaching an internal heating layer and an external insulating layer; the bottom end of the external insulating layer is provided with a base, and the base and the bottom surface of the external insulating layer are attached into a whole; the internal heating layer is internally provided with an electrical heating wire; the base is internally provided with a rechargeable battery used for supplying power to the electric heating wire; the external wall of the box shell is provided with a switch connected in series between the electric heating wire and the rechargeable battery; the side wall of the base is provided with a mains supply interface used for charging the rechargeable battery; the contact surface of the external insulating layer and the box cover is higher than that of the internal heating layer and the box cover; the box cover is hermetically fastened with the box shell through a sealing clip; the side wall of the base, adjacent to one side of the rechargeable battery, is provided with a charging indicator light; and two opposite sides of the outer wall of the box shell are respectively fixedly connected with a handle; and the top surface of the box cover is provided with a rotatable lifting handle. By utilizing the charging and discharging principle of the rechargeable battery, self heating at any time and any place of the lunch box can be realized; and the lunch box is simple in structure and is convenient and practicable.

Description

A kind of lunch box

Technical field

The utility model belongs to the daily necessities field, a kind of specifically lunch box.

Background technology

Lunch box has generally comprised box shell, lid, and wherein the box shell surrounds an inner chamber and is used to hold food, and lid covers and on the box shell, is used for sealing.Because food places lunch box promptly to cool off after a period of time, winter especially, ice-cold food had not only influenced taste but also had damaged people's digestive system.Heat-preserving container has the function of insulation, but its volume is excessive and its internal structure is only better to the heat insulation effect of soup class, is incubated with heat-preserving container like fruit vegetables, also very influences the taste of dish when heat insulation effect is bad.

The utility model content

The technical problem that the utility model will solve provides a kind of charge-discharge principle of rechargeable battery that utilizes and realizes from heating, and simple in structure, convenient and practical lunch box.

For solving the problems of the technologies described above; The utility model comprises box shell and lid, and its design feature is that said box shell is made up of interior zone of heating and external thermal insulation applying, and the external thermal insulation bottom is provided with its bottom surface applying and is the base of one; Establish electrical heating wire in the interior zone of heating; Be provided with the rechargeable battery to the electrical heating wire power supply in the base, on the box shell outer wall switch that is connected between electrical heating wire and the rechargeable battery be installed, the sidewall of base is provided with the mains supply interface to rechargeable battery charging usefulness.

The contact-making surface of zone of heating and lid in the contact-making surface of said external thermal insulation and lid is higher than, lid is through seal buckle and box shell sealing snapping.

Said base is equipped with charging indicator light on the sidewall near rechargeable battery one side.

Respectively be connected with handle in two opposite sides on the outer wall of said box shell, rotatable handle is installed on the end face of lid.

The beneficial effect of the utility model is: the mains supply interface is connected civil power through power line and is charged to rechargeable battery; Thereby power supply makes interior zone of heating heat release heat to food to heating wire to utilize rechargeable battery to discharge; External thermal insulation can play the effect of insulation; As long as rechargeable battery also has electric power can carry out supplementary heating, the user can have the food of heat whenever and wherever possible, has not only kept the taste of dish but also has ensured people's health; The contact-making surface of lid and external thermal insulation is higher than the contact-making surface of lid and interior zone of heating, when guaranteeing the lid fastening, has ensured sealing and heat insulation effect to greatest extent; Charging indicator light is used to indicate charging process and indication full power state, and charged state and full power state that the user can clear and definite battery ensure that Electrical Safety is reliable; Handle makes things convenient for the user to support the box shell, and handle is carrying of whole lunch box conveniently.The utility model utilizes the charge-discharge principle of rechargeable battery to realize the heating certainly whenever and wherever possible of lunch box, and is simple in structure, convenient and practical.

Description of drawings

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further explain:

Fig. 1 is the structural representation of the utility model.

The specific embodiment

With reference to Fig. 1; A kind of embodiment of the lunch box of the utility model is for comprising box shell 1 and lid 2; Box shell 1 surrounds inner chamber and is used to hold food, and box shell 1 is fitted with external thermal insulation 12 by interior zone of heating 11 and constituted, and external thermal insulation 12 bottoms are provided with its bottom surface applying and are the base 3 of one; Establish electrical heating wire 4 in the interior zone of heating 11; Be provided with the rechargeable battery 5 to electrical heating wire 4 power supplies in the base 3, the switch 6 that is connected between electrical heating wire 4 and the rechargeable battery 5 is installed on box shell 1 outer wall, the sidewall of base 3 is provided with the mains supply interface 7 to rechargeable battery 5 charging usefulness.Mains supply interface 7 can be connected civil power through power line and give rechargeable battery 5 chargings, utilizes rechargeable battery 5 discharges to give heating wire 4 power supplies.Base 3 is equipped with charging indicator light 9 on the sidewall near rechargeable battery 5 one sides, charging indicator light 9 is used to indicate charging process and indication full power state, and charged state and full power state that the user can clear and definite battery ensure Electrical Safety.The charge-discharge circuit of rechargeable battery 5 is a prior art, repeats no more at this.In order to guarantee better to seal and heat insulation effect between lid 2 and the box shell 1, the contact-making surface of external thermal insulation 12 and lid 2 is higher than the contact-making surface of interior zone of heating 11 and lid 2, and lid 2 seals snapping through seal buckle 8 and box shell 1.Respectively be connected with handle 13 in two opposite sides on the outer wall of box shell 1, rotatable handle 21 is installed on the end face of lid 2.

Claims

1. lunch box; Comprise box shell (1) and lid (2); It is characterized in that said box shell (1) is made up of interior zone of heating (11) and external thermal insulation (12) applying; External thermal insulation (12) bottom is provided with its bottom surface applying and is the base of one (3), establishes electrical heating wire (4) in the interior zone of heating (11), is provided with the rechargeable battery (5) to electrical heating wire (4) power supply in the base (3); The switch (6) that is connected between electrical heating wire (4) and the rechargeable battery (5) is installed on box shell (1) outer wall, and the sidewall of base (3) is provided with the mains supply interface (7) to rechargeable battery (5) charging usefulness.

2. lunch box as claimed in claim 1 is characterized in that the said external thermal insulation (12) and the contact-making surface of lid (2) are higher than the contact-making surface of interior zone of heating (11) and lid (2), and lid (2) is through seal buckle (8) and box shell (1) sealing snapping.

3. lunch box as claimed in claim 1 is characterized in that said base (3) is equipped with charging indicator light (9) on the sidewall near rechargeable battery (5) one sides.

4. like claim 1 or 2 or 3 described lunch boxes, it is characterized in that: respectively be connected with handle (13) in two opposite sides on the outer wall of said box shell (1), rotatable handle (21) is installed on the end face of lid (2).