Electric heating lunch box

Abstract

The utility model discloses an electric heating lunch box which comprises a box body and an upper cover, the box body comprises a base and an inner container, the inner container is arranged on the base, the base is provided with a heater used for heating the inner container and a storage cavity used for containing and storing tableware, the base comprises an inner container base and an outer shell, and an installation cavity used for containing the heater and the storage cavity is formed between the inner container base and the outer shell. And the storage cavity is positioned below the heater. According to the lunch box, the problem that the overall volume of the lunch box is increased due to the fact that the storage cavity for containing tableware occupies the space for storing food is solved, and the effect that the storage cavity for containing the tableware is more sanitary while the original space for storing the food is not occupied is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to lunch box technical field, especially an electric lunch box. BACKGROUND

[0002] With the acceleration of urbanization process, the life rhythm of modern city is increasingly fast, especially for the white-collar, the lunch break time of weekdays is greatly compressed. Because the residence of many white-collar is far from the company, it is impractical to go home for lunch. Although the catering service is provided in the park restaurant, the single of dishes makes people feel boring soon. Although the takeout has many choices, the health problem is worrying. Therefore, more and more white-collar choose to bring lunch, and the lunch box becomes an indispensable tool in this habit.

[0003] The prior art CN219373997U mentions a portable lunch box convenient for storing tableware, which comprises a base chamber and a box cover, the inner side wall of the base chamber is fixedly connected with a storage part, a storage bin is formed in the storage part, a placing assembly for placing chopsticks and spoons is arranged on one side of the storage bin, and the storage part has two downwardly open air holes on the two sides, the storage part is arranged in the base chamber and divides the base chamber into two spaces for placing dishes and rice respectively, although the air holes can make the lunch box ventilated and convenient for heating in the microwave oven, but the soup, rice steam or water vapor generated in the heating process of the lunch box can also enter the storage part through the air holes, thereby polluting the internal space of the storage part, since the storage part is fixedly connected with the base chamber, the storage part cannot be removed from the base chamber for cleaning, so that dirt difficult to remove will accumulate in the storage part after long time use, bacteria will breed, thereby affecting the user's experience.

[0004] At the same time, in the above-mentioned application, the storage part for storing chopsticks and spoons is arranged in the base chamber, which occupies the original food space, in order to ensure the capacity of the lunch box for rice and dishes, the overall volume of the lunch box will inevitably increase, which will also lead to inconvenient carrying of the lunch box. UTILITY MODEL CONTENTS

[0005] The utility model wants to achieve the purpose of providing an electric lunch box, solving the problem that the storage cavity for accommodating tableware occupies the space for storing food, leading to the increase of the overall volume of the lunch box, achieving the effect of ensuring the storage cavity for accommodating tableware more hygienic without occupying the original space for storing food.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a kind of electric heating lunch box, including box body and upper cover, the box body includes base and inner container, inner container is placed in base, base is equipped with the heater for heating inner container and the storage cavity for accommodating utensil storage, base includes inner container seat and outer shell, installation cavity for accommodating heater and storage cavity is formed between inner container seat and outer shell, storage cavity is located below heater.

[0007] After adopting the above technical scheme, the utility model has the following advantages: the box body includes base and inner container, inner container is placed in base, so that the base wraps the inner container, which not only protects the inner container but also provides certain heat preservation for the inner container. The base includes an inner container seat and an outer shell, and an installation cavity is formed between the inner container seat and the outer shell for accommodating the heater and the storage cavity. The storage cavity for storing utensils does not occupy the space originally used for storing food in the lunch box, thereby improving the space utilization rate of the lunch box. Moreover, the storage cavity is located inside the base of the lunch box, so that the storage position of the utensils is more concealed, and the overall appearance looks more simple and neat. Since the storage cavity is arranged below the heater, the heater can not only heat the food in the inner container but also effectively transfer the heat generated by the heater when heating the inner container to the storage cavity to heat and dry the utensils. This greatly improves the utilization rate of the heater, and the heated and dried utensils are more hygienic, avoiding the breeding of bacteria in a humid environment.

[0008] Furthermore, a fixing bracket is arranged in the installation cavity to separate the heater from the storage cavity. The heater is fixed between the fixing bracket and the inner container seat, and the storage cavity is located below the fixing bracket. Heat-conducting through holes are arranged on the fixing bracket to guide the heat conduction to the storage cavity.

[0009] By adopting the foregoing technical scheme, the heater is located above the fixing bracket and is fixed between the fixing bracket and the inner container seat. The fixing bracket not only fixes the heater and bears the inner container but also forms an independent space for the storage cavity. Although the fixing bracket separates the installation cavity, heat-conducting through holes are arranged on the fixing bracket to better transfer the heat of the heating plate to the storage cavity without affecting the original bearing function. These heat-conducting through holes allow the heat generated by the heater to pass through the fixing bracket and enter the storage cavity to heat and dry the utensils. The arrangement of the fixing bracket and the heat-conducting through holes makes the internal structure of the electric heating lunch box more compact and the space utilization more reasonable. The heat of the heater is further utilized to heat and dry the utensils without occupying the space originally used for storing food in the lunch box, thereby improving the utilization rate of the heater.

[0010] Further, the heater comprises a main body part and a heat conduction part, the main body part is located below the heat conduction part, steps are formed between the two sides of the main body part and the heat conduction part, the fixing support is provided with limiting protrusions matched with the steps, the main body part is limited between the two limiting protrusions, and the heat conduction through hole is located between the two limiting protrusions.

[0011] By adopting the foregoing technical scheme, the steps between the two sides of the main body part of the heater and the heat conduction part are matched with the limiting protrusions on the fixing support, so that the main body part is limited between the two limiting protrusions to limit the shaking of the heater in the installation cavity, and this installation mode ensures that the heater can be stably installed on the fixing support. The heat conduction through hole is located between the two limiting protrusions, so that the heat generated by the heater can be transmitted to the storage cavity through the heat conduction through hole of the main body part, heat transmission is promoted, heat transmission efficiency is improved, heat loss of the heater in the heating process is reduced, drying of tableware in the storage cavity is accelerated, and heat utilization rate is improved.

[0012] Further, the limiting protrusions are provided with check protrusions, and the steps are provided with check grooves matched with the check protrusions.

[0013] By adopting the foregoing technical scheme, when the steps of the heater are matched with the limiting protrusions of the fixing support, the check protrusions located on the limiting protrusions are clamped into the check grooves located on the steps, so that the heater is further ensured to be fixedly installed on the limiting protrusions, displacement or falling of the heater from the limiting protrusions due to shaking of the electric heating lunch box is avoided, the check protrusions and the check grooves not only have the function of fixing the heater, but also have the function of guiding and positioning, when the heater is installed, only the steps need to be aligned with the limiting protrusions, and the heater needs to be pushed so that the check protrusions are clamped into the check grooves, at this time, the heater is stably installed on the fixing support, this mode can also avoid displacement or falling of the heater from the fixing support due to improper installation of the heater, and the stability of the heater in the installation cavity is ensured.

[0014] Further, the fixing support is provided with a supporting protrusion, the supporting protrusion is away from the main body part and abuts against the heat conduction part, and the heat conduction part is attached to the inner container seat.

[0015] By adopting the foregoing technical scheme, the supporting protrusion directly abuts against the heat conduction part, so that the fixing support can better support the heater, effectively prevents displacement of the heater during use, ensures that the heater can be stably installed on the fixing support, and thus the stability of the heater in the installation cavity is improved, and the supporting protrusion makes the heat conduction part more attached to the inner container seat, so that heat is directly transmitted from the heat conduction part to the inner container seat, heat loss in the transmission process is reduced, heat waste is reduced, and heating efficiency of the heater is improved.

[0016] Further, the storage cavity is provided with an opening in the side wall of the outer shell, the inner wall of the outer shell is provided with a raised baffle, the baffle is located on the transverse two sides of the opening and extends from the opening to the side opposite to the opening, the top of the baffle is provided with a cover plate for preventing foreign matters from falling into the storage cavity through the heat-conducting through hole, and the cover plate, the baffle and the outer shell enclose the storage cavity.

[0017] By adopting the foregoing technical scheme, the storage cavity is provided with an opening in the side wall of the outer shell, so as to facilitate the storage and taking out of tableware in the storage cavity, the inner wall of the outer shell is provided with a raised baffle, the baffle is located on the transverse two sides of the opening and extends from the opening to the side opposite to the opening, so that the baffle can ensure that the tableware in the storage cavity is limited between the two baffles, and when in use, the tableware can be directly taken out from the opening, thereby avoiding the movement of the tableware in the storage cavity without limitation, which increases the difficulty of taking out the tableware, and the top of the baffle is further provided with a cover plate, so that the storage cavity forms a closed space and prevents foreign matters from falling into the storage cavity through the heat-conducting through hole, thereby ensuring that the space in the storage cavity remains hygienic and clean.

[0018] Further, the cover plate is buckled to the baffle.

[0019] By adopting the foregoing technical scheme, the cover plate is connected to the baffle through buckling, so as to ensure the fixed cooperation between the cover plate and the baffle, prevent the cover plate from falling off due to the shaking of the electric heating lunch box, and improve the stability of the installation between the cover plate and the baffle, and the connection through buckling facilitates disassembly, so that when the storage cavity needs to be cleaned or the cover plate needs to be replaced, the disassembly can be completed by only unfastening the buckle, and therefore the connection mode is more simple and convenient.

[0020] Further, the storage cavity is provided with an opening in the side wall of the outer shell, the storage cavity is provided with a storage box for placing tableware, and the storage box is loaded into or removed from the storage cavity through the opening.

[0021] By adopting the foregoing technical scheme, the storage box is placed in the storage cavity through the opening in the side wall of the outer shell, the opening is arranged to facilitate the placement and taking out of the storage box from the storage cavity, thereby improving the convenience of taking tableware, and the storage box can also avoid the contact of foreign matters in the storage cavity with the tableware, and since the storage box can be taken out of the storage cavity, the storage box is more convenient for regular cleaning and disinfection, thereby ensuring the cleanliness of the tableware.

[0022] Further, the head of the storage box cooperates with the opening, the installation cavity is provided with an elastic pressing piece at the end of the storage cavity, the tail of the storage box abuts against the elastic pressing piece after the storage box is placed in place, the head of the storage box is pressed, and the elastic pressing piece pops the head of the storage box out of the opening.

[0023] The head of the storage box is matched with the opening, when the storage box is completely placed in the storage cavity, the tail of the storage box abuts against the elastic pressing piece, the user presses the head of the storage box, the elastic pressing piece is pressed and deformed, and then the head of the storage box is bounced out of the opening, the structure is convenient for the user to take out the storage box from the storage cavity, the convenience of use of the user is improved, and the abutment of the tail of the storage box and the elastic pressing piece makes the storage box stable in the storage cavity even if the electric heating lunch box shakes.

[0024] Further, the inner container seat is provided with a containing groove accommodating the inner container, and the bottom surface of the containing groove is provided with a heat-conducting boss, the outer bottom surface of the inner container is attached to the outer top surface of the heat-conducting boss, and the heater is attached to the inner top surface of the heat-conducting boss.

[0025] The aforementioned technical scheme is adopted, the inner container is placed in the containing groove of the inner container seat, so that the inner container can be stably placed in the inner container seat, the bottom surface of the containing groove is provided with the heat-conducting boss, the outer bottom surface of the inner container is attached to the outer top surface of the heat-conducting boss, and the heater is attached to the inner top surface of the heat-conducting boss, so that the heat-conducting boss can transmit the heat of the heater to the inner container, heat loss is reduced, heating efficiency is improved, and the heat of the heater can be uniformly distributed on the bottom of the inner container, so that the food in the inner container is heated more uniformly, and local overheating is avoided, and heating quality is improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] The utility model will be further described below in combination with the drawings:

[0027] Figure 1 It is an explosion schematic view of the utility model of an electric heating lunch box;

[0028] Figure 2 It is an explosion schematic view of the utility model of an electric heating lunch box base;

[0029] Figure 3 It is the utility model Figure 2 A place enlarged view in the utility model;

[0030] Figure 4 It is a sectional view of the utility model of an electric heating lunch box;

[0031] Figure 5 It is a structure schematic Figure 1 of the utility model of an electric heating lunch box;

[0032] Figure 6 It is a structure schematic Figure 2 of the utility model of an electric heating lunch box. DETAILED DESCRIPTION

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0034] The terms "first," "second," etc. (if present) in the specification and claims of this utility model are used to distinguish similar objects, not to describe a specific order or sequence. Even if "second" is used before a technical feature for distinction, it does not necessarily imply the presence of "first." It should be understood that in this utility model, "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. It should be understood that in this utility model, "multiple" refers to two or more. "And / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, X and / or Y can represent: X alone, X and Y simultaneously, and Y alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "Containing X, Y, and Z," "Containing X, Y, and Z" means that all three X, Y, and Z are included; "Containing X, Y, or Z" means that one of X, Y, and Z is included; "Containing X, Y, and / or Z" means that any one, two, or three of X, Y, and Z are included.

[0035] The technical solution of this utility model will be described in detail below with specific embodiments. The following specific embodiments can be selected to be combined or substituted with each other according to the actual situation, and the same or similar concepts or processes may not be described again in some embodiments.

[0036] like Figures 1 to 4 As shown, this utility model provides an electric lunch box, including a box body 4 and a top cover 3. The box body 4 includes a base 1 and an inner liner 2. The inner liner 2 is placed on the base 1. The base 1 is provided with a heater 13 for heating the inner liner 2 and a storage cavity 14 for accommodating tableware. The base 1 includes an inner liner seat 11 and an outer shell 12. An installation cavity for accommodating the heater 13 and the storage cavity 14 is formed between the inner liner seat 11 and the outer shell 12. The storage cavity 14 is located below the heater 13 (the direction described in the embodiment is consistent with the direction indicated in the figure).

[0037] It can be understood that the box body 4 includes the base 1 and the inner container 2, the inner container 2 is placed in the base 1, the base 1 wraps the inner container 2, which not only can protect the inner container 2 but also can keep the inner container 2 warm, the base 1 includes the inner container seat 11 and the outer shell 12, the inner container seat 11 and the outer shell 12 form the mounting cavity, which is used for accommodating the heater 13 and the storage cavity 14, so that the storage cavity 14 for storing tableware does not occupy the space of the lunch box originally used for storing food, the space utilization rate of the lunch box is improved, and the storage cavity 14 is located in the inside of the base 1 of the lunch box, so that the storage position of the tableware is more hidden, and the whole looks more simple and neat, and since the storage cavity 14 is arranged below the heater 13, the heater 13 can not only heat the food in the inner container 2 but also effectively transfer the heat generated by the heater 13 to the storage cavity 14 when the heater 13 heats the inner container 2, so that the tableware can be heated and dried, which greatly improves the utilization rate of the heater 13, and the tableware after heating and drying is more hygienic, and bacteria breeding in a humid environment is avoided.

[0038] Specifically, the mounting cavity is provided with a fixed support 15 for separating the heater 13 from the storage cavity 14, the heater 13 is fixed between the fixed support 15 and the inner container seat 11, and the storage cavity 14 is located below the fixed support 15, so that the heater 13 is located above the fixed support 15 and is fixed between the fixed support 15 and the inner container seat 11, so that the fixed support 15 can not only be used for fixing the heater 13 and bearing the inner container 2, but also forms an independent space for the storage cavity 14. Although the fixed support 15 plays a role in separating the mounting cavity, the fixed support 15 is provided with heat-conducting through holes 151 between the heater 13 and the storage cavity 14 to guide heat conduction to the storage cavity 14, so that the fixed support 15 can better transfer the heat of the heating plate to the storage cavity 14 without affecting the original bearing function. These heat-conducting through holes 151 allow the heat generated by the heater 13 to pass through the fixed support 15 and enter the storage cavity 14 to heat and dry the tableware. Through the arrangement of the fixed support 15 and the heat-conducting through holes 151, the internal structure of the electric heating lunch box is more compact, the space utilization is more reasonable, the tableware can be stored without occupying the space of the lunch box originally used for storing food, the heat of the heater 13 is further utilized to heat and dry the tableware, and the utilization rate of the heater 13 is improved.

[0039] In addition, as Figures 4 to 6As shown, the storage cavity 14 is provided with an opening 121 in the side wall of the outer shell 12, and a storage box 142 for placing tableware is arranged in the storage cavity 14, and the storage box 142 is placed in or removed from the storage cavity 14 through the opening 121 in the side wall of the outer shell 12. The opening 121 is arranged to facilitate the placement and removal of the storage box 142 in the storage cavity 14, thereby improving the convenience of taking tableware, and the storage box 142 can also prevent foreign matter in the storage cavity 14 from contacting the tableware. Since the storage box 142 can be removed from the storage cavity 14, it is more convenient to regularly clean and disinfect the storage box 142, thereby ensuring the cleanliness of the tableware.

[0040] As a preferred mounting mode of the storage box 142 in the storage cavity 14, the head of the storage cavity 14 is matched with the opening 121, and a spring pressing piece 141 is arranged at the end of the storage cavity 14 in the mounting cavity. The tail of the storage box 142 abuts against the spring pressing piece 141 after the storage box 142 is placed in position, and the head of the storage box 142 is pressed to make the spring pressing piece 141 pop out the head of the storage box 142 from the opening 121.

[0041] In this way, when the storage box 142 is completely placed in the storage cavity 14, the tail of the storage box 142 abuts against the spring pressing piece 141, and the user presses the head of the storage box 142 to make the spring pressing piece 141 generate a spring force and pop out the head of the storage box 142 from the opening 121. This structure facilitates the user to remove the storage box 142 from the storage cavity 14, thereby improving the convenience of use, and the abutment of the tail of the storage box 142 and the spring pressing piece 141 ensures that the storage box 142 can be stably placed in the storage cavity 14 even if the electric heating lunch box is shaken. The spring pressing piece 141 can be a press lock commonly used in the prior art.

[0042] For the mounting mode of the storage box 142 in the storage cavity 14, a locking buckle can also be arranged at the opening 121 in the side wall of the outer shell 12, and a protruding rib matched with the locking buckle is arranged at a position opposite to the opening 121 of the storage box 142. When the storage box 142 is placed in the storage cavity 14, the locking buckle fastens the protruding rib, and when the storage box 142 is removed, the locking buckle is actuated to remove the storage box 142 from the storage cavity 14.

[0043] To reduce parts and cost, in other embodiments, the storage box can be cancelled, such as Figure 2 As shown, the inner wall of the outer shell 12 is also provided with a protruding baffle 122, the baffle 122 is located on the two sides of the opening 121 in the side wall of the storage cavity 14 and extends from the opening 121 to the side opposite to the opening 121, and the top of the baffle 122 is provided with a cover plate 123 for preventing foreign matter from falling into the storage cavity 14 through the heat-conducting through hole 151, and the cover plate 123, the baffle 122 and the outer shell 12 form the storage cavity 14.

[0044] According to the above, the storage cavity 14 is provided with an opening 121 on the side wall of the outer shell 12 to facilitate the storage and taking out of tableware in the storage cavity 14, and a raised baffle 122 is arranged on the inner wall of the outer shell 12, the baffle 122 is located on the transverse sides of the opening 121 and extends from the opening 121 to the side opposite to the opening 121, which makes the baffle 122 can ensure that the tableware in the storage cavity 14 is limited between the baffles 122 on both sides, and in use, it is convenient to directly take out the tableware from the opening 121, avoiding the movement of the tableware in the storage cavity 14 without limitation, which will increase the difficulty of taking out the tableware when needed, and the top of the baffle 122 is also provided with a cover plate 123, which makes the storage cavity 14 form a closed space to prevent foreign matter from falling into the storage cavity 14 through the heat-conducting through hole 151, thereby ensuring that the space in the storage cavity 14 remains hygienic and clean.

[0045] This embodiment can also serve as a storage function for tableware, and in order to ensure the fixed cooperation between the cover plate 123 and the baffle 122, the cover plate 123 is connected with the baffle 122 through the buckle 124, which prevents the cover plate 123 from falling off due to the shaking of the electric food warmer, resulting in the inability to tightly cooperate with the baffle 122, thereby improving the stability of the installation between the cover plate 123 and the baffle 122, and the connection through the buckle 124 is convenient for disassembly, when it is necessary to clean the storage cavity 14 or replace the cover plate 123, only need to unfasten the buckle 124 to complete the disassembly, therefore, this connection method is more simple and convenient, and it is also convenient for cleaning the storage cavity 14.

[0046] Among them, the cover plate 123 and the baffle 122 can also be additionally provided with a sealing element, such as a sealing ring, to ensure the sealing between the two.

[0047] In addition, as shown in Figure 1 , the upper cover 3 includes a cover shell 31 and an inner cover 32, the inner cover 32 is provided with a ventilation hole 321 for discharging steam generated during the operation of the electric food warmer, and the storage cavity 14 can also be arranged outside the cover shell 31, which can also achieve the storage of tableware without occupying the space originally used for storing food in the electric food warmer.

[0048] In addition, as shown in Figure 1 , Figure 2 and 4As shown, the inner container seat 11 is also provided with a receiving groove 22 for accommodating the inner container 2, so that the inner container 2 can be stably placed in the inner container seat 11. The bottom surface of the receiving groove 22 is provided with a metal heat-conducting boss 111, the outer bottom surface of the inner container 2 is attached to the outer top surface of the heat-conducting boss 111, and the heater 13 is attached to the inner top surface of the heat-conducting boss 111. In this way, the heat-conducting boss 111 can transmit the heat of the heater 13 to the inner container 2, reducing heat loss and improving heating efficiency. In addition, the heat-conducting boss 111 can also make the heat of the heater 13 evenly distributed on the bottom of the inner container 2, so that the food in the inner container 2 is heated more evenly, avoiding local overheating and improving heating quality.

[0049] As shown, Figure 1 In this embodiment, the inner container 2 of the electric heating lunch box is divided into three areas by the retaining wall 21. The inner wall surface of the inner container 2 is provided with an inner wall groove for inserting the retaining wall 21 to separate the space inside the inner container 2. Users can set the space distribution of the inner container 2 according to their needs for dishes and rice.

[0050] As shown, Figure 2 In this embodiment, the electric heating lunch box is square. The inner surface of the base 1 of the electric heating lunch box is provided with four annular first mounting columns 16 at the four corner positions. The bottom surface of the fixing bracket 15 is provided with four second mounting columns 152 which are matched with the first mounting columns 16. During installation, the second mounting columns 152 are inserted into the first mounting columns 16 to ensure that the fixing bracket 15 is fixedly installed on the base 1 of the electric heating lunch box.

[0051] The first mounting column 16 and the second mounting column 152 are detachably connected, which makes it more convenient to detach the fixing bracket 15 from the base 1, facilitating the cleaning of the base 1 of the electric heating lunch box or the maintenance of the heater 13 when it fails.

[0052] The first mounting column 16 and the second mounting column 152 are detachably connected, which makes it more convenient to detach the fixing bracket 15 from the base 1, facilitating the cleaning of the base 1 of the electric heating lunch box or the maintenance of the heater 13 when it fails.

[0053] The base 1 of the electric heating lunch box is also provided with a power supply assembly 17, which is electrically connected with the heater 13 through an electric wire. The fixed support 15 is also provided with a space for avoiding the electric wire. In the embodiment, the power supply assembly 17 is an external power supply. The power supply assembly 17 also includes an external electric plug. When the electric heating lunch box needs to be heated, the external electric plug is only needed to be plugged into a socket, and then the switch is turned on to make the heater 13 start working to heat the electric heating lunch box. This mode is more suitable for use in an office or at home.

[0054] In other embodiments, the power supply assembly 17 can also use a battery to supply power to the heater 13. This mode is more suitable for outdoor picnic or camping. The power supply assembly 17 can also use a USB power supply, so that the electric heating lunch box can be heated without household power supply. This mode is more suitable for use in a vehicle.

[0055] In order to facilitate the user to carry when going out, the electric heating lunch box is also provided with a handle 181. Handle seats 18 for fixing the handle 181 are arranged on the outer walls of the opposite sides of the base 1 of the electric heating lunch box. The handle seats 18 can make the handle 181 keep a vertical fixed state when being carried, and at the same time lock the upper cover 3, like the state of the handle in Figure 5 and Figure 6 . In this way, the electric heating lunch box can keep stable during carrying. When the electric heating lunch box needs to be opened, the handle 181 can be rotated relative to the handle seat 18 to not affect the opening of the upper cover 3 of the electric heating lunch box. At this time, the handle 181 is in a placed state, like the state of the handle in Figure 1 .

[0056] Specifically, a clasp can be arranged on the handle seat 18, and a gourd hole is arranged on the handle 181. The large hole of the gourd hole is located above the small hole, so that the gourd hole cooperates with the clasp. When the handle 181 is in a fixed state, the small hole of the gourd hole is in interference fit with the clasp, so that the handle 181 is fixed in a vertical state. When the handle 181 is in a placed state, the large hole of the gourd hole cooperates with the clasp. The diameter of the large hole is at least not smaller than the diameter of the clasp. At this time, the handle 181 can be rotated relative to the clasp.

[0057] In addition, the clasp also has the function of fixing the handle seat 18 to the base 1 of the electric heating lunch box.

[0058] As shown in Figure 2 and Figure 3As shown, the heater 13 includes a main body portion 131 and a heat-conducting portion 132, the main body portion 131 is located below the heat-conducting portion 132, the main body portion 131 and the heat-conducting portion 132 are in an integrated structure, a step 133 is formed between the two sides of the main body portion 131 and the heat-conducting portion 132, the fixing support 15 is provided with a limiting protruding rib 153 matched with the step 133, and the main body portion 131 is limited between the two limiting protruding ribs 153 to limit the shaking of the heater 13 in the installation cavity. This installation mode ensures that the heater 13 can be stably installed on the fixing support 15.

[0059] The heat-conducting through hole 151 is located between the two limiting protruding ribs 153, so that the heat generated by the heater 13 can be transmitted to the storage cavity 14 by the main body portion 131 through the heat-conducting through hole 151, which promotes the heat transmission, improves the heat transmission efficiency, reduces the heat loss of the heater 13 during heating, speeds up the drying of the tableware in the storage cavity 14, and improves the utilization rate of heat.

[0060] In order to better fix and install the heater 13 on the limiting protruding rib 153, a check protrusion 154 is further arranged on the limiting protruding rib 153, and the step 133 is provided with a check groove matched with the check protrusion 154. Therefore, when the step 133 of the heater 13 is matched with the check protrusion 154 of the fixing support 15, the check protrusion 154 located on the limiting protruding rib 153 will be clamped into the check groove located on the step 133, which avoids displacement or falling of the heater 13 from the limiting protruding rib 153 due to shaking of the electric heating lunch box. At the same time, the cooperation of the check protrusion 154 and the check groove not only fixes the heater 13, but also has the effect of guiding and positioning. When installing the heater 13, only need to align the step 133 with the limiting protruding rib 153, and push the heater 13 to make the check protrusion 154 clamped into the check groove. At this time, the heater 13 is stably installed on the fixing support 15. This way can also avoid displacement or falling of the heater 13 from the fixing support 15 due to improper installation of the heater 13, and ensures the stability of the heater 13 in the installation cavity.

[0061] Alternatively, a supporting protruding rib 155 is arranged on the fixing support 15, and the supporting protruding rib 155 is arranged away from the main body portion 131 and abuts against the heat-conducting portion 132, so that the fixing support 15 can better support the heater 13, effectively prevent displacement of the heater 13 during use, and ensure that the heater 13 can be stably installed on the fixing support 15, thereby improving the stability of the heater 13 in the installation cavity. Moreover, the supporting protruding rib 155 makes the heat-conducting portion 132 more closely attached to the inner container seat 11, so that the heat is directly transmitted from the heat-conducting portion 132 to the inner container seat 11, reducing the loss of heat in the transmission process, reducing the waste of heat, and improving the heating efficiency of the heater 13.

[0062] In summary, in the embodiment, the fixing support 15 is detachably connected with the base 1 of the electric food warmer through the first mounting column 16 and the second mounting column 152; in order to achieve the best fixing effect of the fixing support 15 and the heater 13, the cooperation of the check convex 154 and the check concave is arranged, and the supporting convex rib 155 is arranged to abut against the heat conducting part 132, so that the heater 13 and the fixing support 15 are detachably connected; the inner container seat 11 is directly placed above the heater 13; and the inner container 2 is directly placed in the inner container seat 11.

[0063] As known from the above, the electric food warmer is entirely detachably mounted, the installation is more flexible, the user is convenient for cleaning and nursing the inside of the electric food warmer, the detachable connection mode simplifies the installation process, the maintenance and replacement of the parts are facilitated, and the maintenance cost is further reduced.

[0064] In addition to the preferred embodiments, the utility model also has other implementation manners, and all other embodiments obtained by the person skilled in the art based on the embodiments in the utility model without creative labor belong to the range of the utility model claimed.

Claims

1. An electrically heated lunch box comprising a box body and an upper cover, characterized in that, The box body comprises a base and an inner container, the inner container is arranged in the base, the base is provided with a heater for heating the inner container and a storage cavity for storing tableware, the base comprises an inner container seat and an outer shell, an installation cavity for accommodating the heater and the storage cavity is formed between the inner container seat and the outer shell, and the storage cavity is located below the heater.

2. The electrically heated bento box according to claim 1, characterized by The installation cavity is provided with a fixed support for separating the heater and the storage cavity, the heater is fixed between the fixed support and the inner container seat, the storage cavity is located below the fixed support, the fixed support is provided with a heat conduction through hole, and the heat conduction through hole is located between the heater and the storage cavity to guide heat conduction to the storage cavity.

3. The electrically heated bento box according to claim 2, characterized by The heater comprises a main body part and a heat conduction part, the main body part is located below the heat conduction part, steps are formed between the two sides of the main body part and the heat conduction part, the fixed support is provided with limiting protrusions matched with the steps, the main body part is limited between the two limiting protrusions, and the heat conduction through hole is located between the two limiting protrusions.

4. The electrically heated bento box according to claim 3, characterized by The limiting protrusions are provided with check protrusions, and the steps are provided with check grooves matched with the check protrusions.

5. The electrically heated bento box according to claim 3, characterized by The fixed support is provided with a supporting protrusion, the supporting protrusion is away from the main body part and abuts against the heat conduction part, and the heat conduction part is attached to the inner container seat.

6. The electrically heated bento box according to claim 2, characterized by The storage cavity is provided with an opening in the side wall of the outer shell, the inner wall of the outer shell is provided with a protruding baffle, the baffle is located on the transverse sides of the opening and extends from the opening to the side opposite to the opening, the top of the baffle is provided with a cover plate for preventing foreign matters from falling into the storage cavity through the heat conduction through hole, and the cover plate, the baffle and the outer shell surround the storage cavity.

7. The electrically heated bento box according to claim 6, characterized by The cover plate is buckled to the baffle.

8. The electrically heated bento box according to claim 1, characterized by The storage cavity is provided with an opening in the side wall of the outer shell, the storage cavity is provided with a storage box for placing tableware, and the storage box is loaded into or removed from the storage cavity through the opening.

9. The electrically heated bento box according to claim 8, characterized by The head of the storage box is matched with the opening, the installation cavity is provided with an elastic pressing piece at the end of the storage cavity, the tail of the storage box abuts against the elastic pressing piece after the storage box is placed in place, the head of the storage box is pressed, and the elastic pressing piece pops out the head of the storage box from the opening.

10. The electrically heated bento box according to claim 1, characterized by The inner container seat is provided with a containing groove for containing the inner container, the bottom surface of the containing groove is provided with a heat conduction boss, the outer bottom surface of the inner container is attached to the outer top surface of the heat conduction boss, and the heater is attached to the inner top surface of the heat conduction boss.

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