CN-224206663-U - Electric heating heat preservation device

CN224206663UCN 224206663 UCN224206663 UCN 224206663UCN-224206663-U

Abstract

The disclosure relates to an electric heating heat preservation device, which comprises an inner container, a heating component and a shell, wherein the inner container is used for containing liquid to be heated and preserved, an opening is formed in the top of the inner container, the heating component is arranged on the outer wall of the bottom of the inner container, the heating component is connected with a conductive component, the conductive component extends to the outside of the electric heating heat preservation device and is used for being connected with a power supply, a first vacuum cavity is formed below the bottom of the inner container, the heating component is contained in the first vacuum cavity, the shell is sleeved on the outer side of the inner container, gaps are reserved among the shell, the inner container and the first vacuum cavity, and the gaps form a second vacuum cavity. The lower extreme three-layer that the device provided, two vacuum structure can effectively prevent the heat that heating element produced and pass through the lateral wall conduction, avoid long-time heating to lead to the overheated and scald user's of casing risk, play better heat preservation function again simultaneously, reduce heat loss.

Inventors

WANG ENPING
ZHU HONGMEI
ZHANG YUBO

Assignees

浙江喂养家智能科技有限公司

Dates

Publication Date: 20260508
Application Date: 20250407

Claims (10)

1. An electric heating and heat preserving device is characterized by comprising an inner container, a heating component and a shell; The heating component is connected with a conductive component, and the conductive component extends to the outside of the electric heating heat preservation device and is used for being connected with a power supply; The heating assembly is arranged in the first vacuum cavity, the shell is sleeved outside the inner container, a gap is reserved between the shell and the inner container and between the shell and the first vacuum cavity, and the gap forms a second vacuum cavity.
2. The electrically heated insulating device of claim 1, wherein the heating assembly comprises a heating pan.
3. The electrical heating and thermal insulation device according to claim 1, wherein the bottom circumference of the inner container is connected with a first vacuum element, a gap between the first vacuum element and the bottom of the inner container forms the first vacuum cavity, and one end of the conductive component penetrates out of the bottom of the first vacuum element.
4. An electrically heated insulating device as claimed in claim 3 wherein the electrically conductive assembly comprises electrically conductive pins having one end extending from the base of the first vacuum member.
5. The electrical heating and thermal insulation device according to claim 4, wherein a through hole for the conductive pin to penetrate is formed in the bottom of the first vacuum element, and a ceramic insulating element is arranged in the through hole.
6. An electric heating and heat preserving device according to claim 3, wherein the first vacuum cavity is provided with a temperature sensing probe for detecting temperature, and one end of the temperature sensing probe penetrates out of the bottom of the first vacuum part.
7. The electrical heating and thermal insulation device according to claim 6, further comprising a temperature sensing probe mounting tube, wherein two ends of the temperature sensing probe mounting tube are respectively connected with the heating assembly and the bottom of the first vacuum element, and the temperature sensing probe is mounted in the temperature sensing probe mounting tube.
8. An electrical heating and heat preservation device according to claim 3, wherein the first vacuum member is provided with an annular protrusion around the bottom, the second vacuum member is connected to the first vacuum member along the annular protrusion, and a gap is left between the first vacuum member and the second vacuum member; The shell is connected with the second vacuum piece, and gaps among the shell, the liner, the first vacuum piece and the second vacuum piece form the second vacuum cavity.
9. The electrical heating and thermal insulation device according to claim 8, wherein the first vacuum member is provided with a first vacuum-pumping hole, and the second vacuum member is provided with a second vacuum-pumping hole.
10. An electrically heated insulating device as claimed in any of claims 1 to 9 wherein the electrically heated insulating device is provided with a base for supplying electricity and with a conductive portion which communicates when in interference with the conductive member.

Description

Electric heating heat preservation device Technical Field The disclosure relates to the technical field of electric heating, in particular to an electric heating heat preservation device. Background Compared with the traditional heat preservation devices such as a thermos cup/a thermos flask, the electric heating heat preservation device is more suitable for use in use scenes such as milk powder brewing, milk warming, tea boiling and the like, in which the liquid needs to be kept in a certain temperature range. The electric heating heat preservation device generally comprises an inner container, a heating disc and an outer shell, wherein the liquid is kept at a certain temperature through the heating of the heating disc, and the heat preservation and heat insulation of the liquid in the device are realized through forming a cavity between the inner container and the outer shell into a vacuum state. For example, CN219479749U discloses a heating thermos cup, including inner shell and the shell body outside of inner shell body, the inner shell body bottom outside is equipped with heating element, and the shell body includes outer drain pan and connects the outside shell on outer drain pan, and even outer drain pan in heating element, inner shell body bottom is equipped with the clearance. This scheme directly is equipped with heating element in the inside casing bottom outside, and has kept the structure that bottom and lateral part have the vacuum layer, can carry out fine heat preservation. The heating vacuum cup and the similar structures form an integrated vacuumizing structure between the shell and the liner, and the cavity where the heating disc is positioned and the side wall vacuum layer are in the same space. This structure can lead to the condition that the heat that generates of heating disk after the long-time heating was conducted to the shell lateral wall, has the risk of scalding. Disclosure of utility model The purpose of this disclosure is to prevent the electric heating heat preservation device bottom from scalding the user because the heating element heats for a long time and will heat transfer to the shell. In order to achieve the above purpose, the present disclosure adopts the following technical scheme: an electric heating and heat preserving device comprises an inner container, a heating component and a shell; The heating component is connected with a conductive component, and the conductive component extends to the outside of the electric heating heat preservation device and is used for being connected with a power supply; The heating assembly is arranged in the first vacuum cavity, the shell is sleeved outside the inner container, a gap is reserved between the shell and the inner container and between the shell and the first vacuum cavity, and the gap forms a second vacuum cavity. Preferably, the heating assembly comprises a heating plate. More preferably, the bottom circumference of the inner container is connected with a first vacuum part, a gap between the first vacuum part and the bottom of the inner container forms the first vacuum cavity, and one end of the conductive component penetrates out of the bottom of the first vacuum part. Preferably, the conductive assembly includes a conductive pin having one end penetrating from the bottom of the first vacuum member. More preferably, a through hole for the conductive pin to pass through is formed in the bottom of the first vacuum element, and a ceramic insulating element is arranged in the through hole. Preferably, the first vacuum cavity is provided with a temperature sensing probe for detecting temperature, and one end of the temperature sensing probe penetrates out of the bottom of the first vacuum part. More preferably, the device further comprises a temperature sensing probe mounting pipe, wherein two ends of the temperature sensing probe mounting pipe are respectively connected with the heating component and the bottom of the first vacuum piece, and the temperature sensing probe is mounted in the temperature sensing probe mounting pipe. More preferably, the first vacuum member is provided with an annular protrusion around the bottom, the second vacuum member is connected to the first vacuum member along the annular protrusion, and a gap is left between the first vacuum member and the second vacuum member; The shell is connected with the second vacuum piece, and gaps among the shell, the liner, the first vacuum piece and the second vacuum piece form the second vacuum cavity. Preferably, the first vacuum member is provided with a first vacuum-pumping hole, and the second vacuum member is provided with a second vacuum-pumping hole. More preferably, the electric heating and heat preserving device is provided with a base, and the base is used for supplying power and is provided with a conductive part communicated with the conductive component when in interference. The technical scheme claimed by the disclosure has the following bene