Thermal lunch box

Abstract

The utility model discloses a kind of thermal lunch boxes, including box, heating element and lunch box cover, box has accommodating cavity and the bowl accommodating groove of upper opening, accommodating cavity is located between the first bottom surface of bowl accommodating groove and the second bottom surface of box, first bottom surface has water inlet hole, second bottom surface has water outlet hole located below water inlet hole, accommodating cavity is equipped with drainage part, drainage part has drainage passage;Heating element is located in accommodating cavity and is located in one side of drainage part;Lunch box cover is installed in the top of box;The first bottom surface of the utility model bowl accommodating groove has water inlet hole, the second bottom surface of box has water outlet hole, water inlet hole is communicated with water outlet hole by the drainage passage of drainage part, heating element is installed in one side of drainage part, when there is liquid in bowl accommodating groove, liquid can be discharged from thermal lunch box through water inlet hole, drainage passage and water outlet hole, and, due to the structure barrier of drainage part, liquid cannot contact heating element, to avoid the risk of electric leakage.

Description

Technical Field

[0001] This utility model relates to the field of insulated boxes, and more particularly to an insulated lunch box. Background Technology

[0002] Existing electric insulated lunch boxes typically consist of a box body, a lid, and a bowl. The box body contains heating elements and other electronic components, and the bowl is placed between the box body and the lid. When the insulated lunch box is tilted, because there is no dedicated drainage channel inside the box body, the liquid in the bowl may come into contact with the heating elements and other electronic components, posing a risk of electric leakage. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an insulated lunch box.

[0004] The technical solution of this utility model is as follows: it includes a box body, a heating element, and a lunch box lid. The box body has a receiving cavity and a bowl receiving groove with an upper opening. The receiving cavity is located between the first bottom surface of the bowl receiving groove and the second bottom surface of the box body. The first bottom surface has a water inlet hole, and the second bottom surface has a water outlet hole located below the water inlet hole. The receiving cavity is provided with a drainage part corresponding to the position of the water inlet hole. The drainage part has drainage channels that communicate with the water inlet hole and the water outlet hole respectively. The heating element is located in the receiving cavity and on one side of the drainage part. The lunch box lid is installed on the top of the box body.

[0005] Furthermore, the drainage channel extends in the vertical direction.

[0006] Furthermore, the horizontal cross-sectional area of ​​the drainage channel is larger than the horizontal cross-sectional areas of the inlet and the outlet, and the inlet and outlet are located in the middle of the drainage channel in the vertical direction.

[0007] Furthermore, the second bottom surface is provided with a blocking member, which is located inside the drainage channel and directly above the water outlet. There is a flow channel between the blocking member and the second bottom surface, and the flow channel is connected to the drainage channel and the water outlet respectively.

[0008] Furthermore, it also includes a battery located within the accommodating cavity and on one side of the drain section, the battery being located below the heating element.

[0009] Furthermore, the cavity has a battery slot and a battery cover on top of the battery slot. The battery slot and the battery cover are located on one side of the drainage section. The battery is placed in the battery slot. The upper and lower surfaces of the battery cover are provided with heat insulation elements. The heat insulation element on the upper surface of the battery cover is located between the battery cover and the heating element.

[0010] Furthermore, there are multiple water inlets, water outlets, and drainage sections. The multiple water inlets are spaced apart on the first bottom surface, and the positions of the multiple water outlets and the multiple drainage sections correspond one-to-one with the positions of the multiple water inlets.

[0011] Furthermore, the housing includes a support, a heating plate, and a base. The base has an upper-opening mounting cavity. The heating plate is located within the mounting cavity and positioned on top of multiple drainage sections. The support is annular and located within the mounting cavity. The top of the support is fixedly connected to the top of the base. The bottom of the support abuts against the heating plate. The support and the heating plate together form the bowl-shaped receiving groove. The water inlet is located on the heating plate, the water outlet is located on the bottom of the base, the heating element is located on the heating plate, and the drainage section is located on the base.

[0012] Furthermore, the lunchbox lid is snapped into place with the box body.

[0013] Furthermore, the insulation component is insulation cotton.

[0014] The insulated lunch box according to this utility model has at least the following technical effects: 1. The first bottom surface of the bowl-containing compartment has a water inlet hole, and the second bottom surface of the box has a water outlet hole. The water inlet hole is connected to the water outlet hole through the drainage channel of the drainage part. The heating element is installed on one side of the drainage part. When there is liquid in the bowl-containing compartment, the liquid can be discharged out of the insulated lunch box through the water inlet hole, the drainage channel and the water outlet hole. Moreover, due to the structural barrier of the drainage part, the liquid will not come into contact with the heating element, thereby avoiding the risk of electric leakage.

[0015] 2. The blocking component is located directly above the water outlet. The blocking component prevents foreign objects from the outside of the insulated lunch box from entering the drainage channel through the water outlet and affecting drainage.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] Additional aspects and advantages of this utility model will become apparent and readily understood from the description of the technical solution in conjunction with the following drawings, wherein: Figure 1 This is a cross-sectional view of the insulated lunchbox without the inner bowl inside. Figure 2 This is an axonometric sectional view of the insulated lunchbox without the inner bowl inside. Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 An exploded view of an insulated lunchbox; Figure 5 A cross-sectional view of the insulated lunchbox after the inner bowl has been placed inside; Figure 6 This is a schematic diagram of a structure where the water inlet is located inside the drainage channel in the vertical direction; Figure 7 This is a schematic diagram of the battery mounted on the base. Figure 8 This is a schematic diagram of the support and heating plate.

[0018] Reference numerals: Box body 100, accommodating cavity 110, bowl accommodating groove 120, first bottom surface 121, water inlet 1211, second bottom surface 130, water outlet 131, drainage part 140, drainage channel 141, flow channel 142, blocking component 150, support 160, heating plate 170, base 180, mounting cavity 181, heating element 200, lunch box lid 300, battery 400, battery slot 410, battery cover 420, heat insulation component 430, inner bowl 500. Detailed Implementation The technical solution of this utility model is described in detail below. Examples of the technical solution are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The technical solution described below with reference to the accompanying drawings is exemplary and is only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] Reference Figure 1 , 2 As shown in Figure 3, the insulated lunch box provided in the embodiment of this utility model includes a box body 100, a heating element 200, and a lunch box lid 300. The box body 100 has a receiving cavity 110 and a bowl receiving groove 120 with an upper opening. The receiving cavity 110 is located between the first bottom surface 121 of the bowl receiving groove 120 and the second bottom surface 130 of the box body 100. The first bottom surface 121 has a water inlet hole 1211, and the second bottom surface 130 has a water outlet hole 131 located below the water inlet hole 1211. The receiving cavity 110 is provided with a drainage part 140 corresponding to the position of the water inlet hole 1211. The drainage part 140 has a drainage channel 141 communicating with the water inlet hole 1211 and the water outlet hole 131 respectively. The heating element 200 is located in the receiving cavity 110 and is located on one side of the drainage part 140. The lunch box lid 300 is installed on the top of the box body 100.

[0023] The first bottom surface 121 of the bowl holding slot 120 has a water inlet hole 1211, and the second bottom surface 130 of the box body 100 has a water outlet hole 131. The water inlet hole 1211 is connected to the water outlet hole 131 through the drainage channel 141 of the drainage part 140. The heating element 200 is installed on one side of the drainage part 140. When there is liquid in the bowl holding slot 120, the liquid can be discharged out of the insulated lunch box through the water inlet hole 1211, the drainage channel 141 and the water outlet hole 131. Moreover, due to the structural barrier of the drainage part 140, the liquid will not come into contact with the heating element 200, thereby avoiding the risk of electric leakage.

[0024] like Figure 4 , 5 As shown, when using, remove the lunchbox lid 300, place the inner bowl 500 containing the ingredients into the bowl receiving slot 120, and then close the lunchbox lid 300. Figure 1As shown, when the heating element 200 is activated, it heats the first bottom surface 121, which then transfers heat to the inner bowl 500 to keep the food inside warm. When the liquid in the inner bowl 500 flows out, it is discharged from the insulated lunch box through the water inlet 1211, the drain channel 141, and the water outlet 131. Since the liquid enters the drain channel 141 through the water inlet 1211, it will not come into contact with the heating element 200 or other electronic components in the accommodating cavity 110.

[0025] Furthermore, such as Figure 3 As shown, the drainage channel 141 extends in the vertical direction, thus forming a vertical drainage channel 141, which facilitates the discharge of liquid.

[0026] Furthermore, such as Figure 3 , 6 As shown, the horizontal cross-sectional area of ​​the drainage channel 141 is larger than the horizontal cross-sectional area of ​​the inlet hole 1211 and the horizontal cross-sectional area of ​​the outlet hole 131. In the vertical direction, the inlet hole 1211 and the outlet hole 131 are located in the middle of the drainage channel 141.

[0027] The drainage channel 141, the inlet hole 1211, and the outlet hole 131 adopt the above design, that is, the drainage channel 141 is larger in size and the inlet hole 1211 is smaller in size. During the liquid flow process, the drainage channel 141 has a relatively wide cross-section, which can provide a larger flow space, while the inlet hole 1211 is relatively narrow, so that the liquid flowing in from the inlet hole 1211 can flow smoothly and centrally into the drainage channel 141 and will not flow to other places.

[0028] Furthermore, such as Figure 3 As shown, the second bottom surface 130 is provided with a blocking member 150. The blocking member 150 is located inside the drainage channel 141 and directly above the water outlet 131. There is a flow channel 142 between the blocking member 150 and the second bottom surface 130. The flow channel 142 is connected to the drainage channel 141 and the water outlet 131 respectively.

[0029] By providing a blocking element 150, foreign objects from the outside of the insulated lunch box are prevented from entering the drainage channel 141 through the water outlet 131 and affecting drainage.

[0030] During drainage, the liquid in the drainage channel 141 is discharged out of the insulated lunch box through the flow channel 142 and the water outlet 131.

[0031] Specifically, the blocking member 150 and the second bottom surface 130 can be connected together by a number of reinforcing ribs, so that the blocking member 150 can be located directly above the water outlet 131.

[0032] Furthermore, such as Figure 1As shown, it also includes a battery 400, which is located inside the accommodating cavity 110 and on one side of the drain section 140, and is located below the heating element 200.

[0033] The battery 400 is located inside the accommodating cavity 110 and below the heating element 200 to make the structure inside the accommodating cavity 110 compact.

[0034] Specifically, a circuit board is also installed inside the accommodating cavity 110, and the circuit board is connected to the battery 400 and the heating element 200 respectively.

[0035] Furthermore, such as Figure 1 As shown, the accommodating cavity 110 has a battery compartment 410 and a battery cover 420 covering the top of the battery compartment 410. The battery compartment 410 and the battery cover 420 are located on one side of the drainage section 140, as shown. Figure 7 As shown, battery 400 is placed inside battery slot 410, as Figure 1 As shown, the upper and lower surfaces of the battery cover 420 are provided with heat insulation components 430, and the heat insulation component 430 on the upper surface of the battery cover 420 is located between the battery cover 420 and the heating element 200.

[0036] By setting two heat insulation components 430, heat from the heating element 200 is prevented from being transferred to the battery 400.

[0037] Furthermore, such as Figure 2 As shown, there are multiple water inlets 1211, water outlets 131, and drainage sections 140. The multiple water inlets 1211 are spaced apart on the first bottom surface 121, and the positions of the multiple water outlets 131 and the multiple drainage sections 140 correspond one-to-one with the positions of the multiple water inlets 1211.

[0038] Multiple water inlet holes 1211, water outlet holes 131, and drainage sections 140 are provided to make it easier to drain the liquid in the bowl holding slot 120 out of the insulated lunch box.

[0039] Furthermore, such as Figure 4 , 8 As shown, the housing 100 includes a support 160, a heating plate 170, and a base 180. The base 180 has an upper-opening mounting cavity 181, as shown... Figure 2 As shown, the heating plate 170 is located in the mounting cavity 181 and is placed on top of multiple drainage sections 140. The support 160 is ring-shaped and located in the mounting cavity 181. The top of the support 160 is fixedly connected to the top of the base 180. The bottom of the support 160 abuts against the heating plate 170. The support 160 and the heating plate 170 together form a bowl receiving groove 120. The water inlet hole 1211 is located on the heating plate 170, the water outlet hole 131 is located on the bottom of the base 180, the heating element 200 is located on the heating plate 170, and the drainage section 140 is located on the base 180.

[0040] The box body 100 is disassembled into a support 160, a heating plate 170, and a base 180 so that they can be manufactured separately and are easy to process.

[0041] Understandably, after the top of the support 160 is fixedly connected to the top of the base 180, the bottom of the support 160 rests against the heating plate 170, and the bottom of the support 160 and the heating plate 170 are sealed together, thereby preventing liquid from entering the mounting cavity 181 through the gap between them.

[0042] It is understandable that the receiving cavity 110 is a part of the mounting cavity 181.

[0043] Understandably, the heating plate 170 serves to conduct heat and support the heating element 200.

[0044] Furthermore, the lunchbox lid 300 is snapped into the box body 100, making it easy to install and remove the lunchbox lid 300.

[0045] Furthermore, the insulation component 430 is made of insulation cotton, providing even better insulation.

[0046] Although the technical solutions of this utility model have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these technical solutions without departing from the principles and spirit of this utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A thermally insulated lunch box, characterized by comprising: include: The box body has a receiving cavity and a bowl receiving groove with an upper opening. The receiving cavity is located between the first bottom surface of the bowl receiving groove and the second bottom surface of the box body. The first bottom surface has a water inlet hole, and the second bottom surface has a water outlet hole located below the water inlet hole. The receiving cavity is provided with a drainage part corresponding to the position of the water inlet hole. The drainage part has drainage channels that communicate with the water inlet hole and the water outlet hole respectively. A heating element is located within the accommodating cavity and on one side of the drain section; The lunchbox lid is installed on the top of the box body.

2. The vacuum lunch box according to claim 1, characterized by: The drainage channel extends in the vertical direction.

3. The vacuum lunch box according to claim 2, characterized in that: The horizontal cross-sectional area of ​​the drainage channel is larger than the horizontal cross-sectional areas of the inlet and the outlet. In the vertical direction, the inlet and the outlet are located in the middle of the drainage channel.

4. The thermally insulated lunch box according to any one of claims 1 to 3, characterized in that: The second bottom surface is provided with a blocking member, which is located inside the drainage channel and directly above the water outlet. There is a flow channel between the blocking member and the second bottom surface, and the flow channel is connected to the drainage channel and the water outlet respectively.

5. The vacuum lunch box according to claim 1, wherein: It also includes a battery located within the accommodating cavity and on one side of the drain section, the battery being located below the heating element.

6. The vacuum lunch box according to claim 5, wherein: The cavity contains a battery slot and a battery cover on top of the battery slot. The battery slot and the battery cover are located on one side of the drainage section. The battery is placed inside the battery slot. The upper and lower surfaces of the battery cover are provided with heat insulation elements. The heat insulation element on the upper surface of the battery cover is located between the battery cover and the heating element.

7. The vacuum lunch box according to claim 1, wherein: The water inlet, the water outlet, and the drainage section are all provided in multiples. The multiple water inlets are spaced apart on the first bottom surface, and the positions of the multiple water outlets and the multiple drainage sections correspond one-to-one with the positions of the multiple water inlets.

8. The vacuum lunch box according to claim 7, characterized in that: The housing includes a support, a heating plate, and a base. The base has an upper-opening mounting cavity. The heating plate is located inside the mounting cavity and placed on top of the plurality of drainage sections. The support is annular and located inside the mounting cavity. The top of the support is fixedly connected to the top of the base. The bottom of the support abuts against the heating plate. The support and the heating plate together form the bowl-shaped receiving groove. The water inlet is located on the heating plate. The water outlet is located on the bottom of the base. The heating element is located on the heating plate. The drainage section is located on the base.

9. The vacuum lunch box according to claim 1, wherein: The lunchbox lid is snapped into place with the box body.

10. The vacuum lunch box according to claim 6, wherein: The insulation component is insulation cotton.

Images