CN-115247889-B - Flat inner container and electric water heater

CN115247889BCN 115247889 BCN115247889 BCN 115247889BCN-115247889-B

Abstract

The invention discloses a flat liner and an electric water heater, wherein the flat liner comprises a liner, a pipe seat which is integrally formed on the liner, the pipe seat is arranged on the cambered surface of the liner and extends towards the outside of the liner, a water pipe assembly comprises an insulating pipe and a water pipe, the water pipe is inserted into the insulating pipe, the insulating pipe is arranged on the pipe seat, and the water pipe is inserted into the pipe seat and extends into the liner. The thickness dimension of the flat liner is reduced, so that the space utilization rate is improved, and the user experience of the electric water heater is improved.

Inventors

SU JIN
MA TENG
WANG JUN
ZHAO XIAOYONG

Assignees

青岛经济技术开发区海尔热水器有限公司
海尔智家股份有限公司

Dates

Publication Date: 20260512
Application Date: 20210428

Claims (9)

1. An electric water heater comprises a shell and is characterized by also comprising a flat inner container; the flat liner includes: The inner container is provided with a tube seat with an integrated structure, and the tube seat is arranged on the cambered surface of the inner container and extends towards the outside of the inner container; A water pipe assembly including an insulating pipe and a water pipe inserted in the insulating pipe; The insulating pipe is arranged on the pipe seat, and the water pipe is inserted into the pipe seat and extends into the inner container; the flat inner container is arranged in the shell, and an insulating layer is arranged between the flat inner container and the shell; The shell comprises a rear shell, a lining plate and a front shell, wherein a first screw hole is formed in the edge of the rear shell, and a mounting surface is formed in the back of the rear shell; the inner surface of the front shell is provided with a second clamping part, the lining plate is connected with the rear shell, a screw penetrates through the first through hole and is in threaded connection with a corresponding first screw hole, the front shell covers the lining plate, and the first clamping part is connected with the corresponding second clamping part; The first clamping part comprises a clamping groove and a first positioning groove, the second clamping part comprises a clamping jaw and a first inserting tongue, the clamping jaw is clamped in the clamping groove, the first inserting tongue is inserted in the first positioning groove, a first guide sliding groove and a second guide sliding groove are arranged on the outer surface of the lining plate, the first guide sliding groove extends to the clamping groove, and the second guide sliding groove extends to the first positioning groove.
2. The electric water heater as claimed in claim 1, wherein the liner comprises two liner shells, the liner shells are integrally in a cambered surface structure, and the tube seat is arranged on at least one liner shell.
3. The electric water heater of claim 2, wherein the punched flange on the liner forms the outwardly extending tube socket.
4. The electric water heater as set forth in any one of claims 1-3, wherein a connecting pipe is provided on the pipe seat, an internal thread is provided in the connecting pipe, a first insert is provided at one end of the insulating pipe, the first insert is of a cylindrical structure, an external thread is formed on an outer circumferential ring of the first insert, and the first insert is screwed into the internal thread.
5. The electric water heater of claim 4, wherein the first insert is further sleeved with a sealing ring, the sealing ring being compressed between the connecting tube and the insulating tube.
6. The electric water heater as claimed in claim 4, wherein the other end of the insulating tube is provided with a second insert having a cylindrical structure, and an outer circumference of the second insert is also formed with an external thread.
7. The electric water heater as claimed in claim 4, wherein a sleeve is further provided outside the water pipe, and a plurality of through holes are provided on a wall of the sleeve.
8. The electric water heater of claim 7, wherein a functional filter material is further filled between the sleeve and the water pipe, and a first annular plug is disposed between the upper end of the sleeve and the water pipe.
9. The electric water heater of claim 8, wherein the lower end of the sleeve is connected to the insulating tube, or wherein the lower end of the sleeve is connected to the first insert, or wherein a second annular plug is disposed between the lower end of the sleeve and the water tube.

Description

Flat inner container and electric water heater Technical Field The invention belongs to the technical field of household appliances, and particularly relates to a flat liner and an electric water heater. Background At present, water heaters are household appliances commonly used in daily life of people, and the water heaters are divided into electric water heaters and gas water heaters according to different heating sources. The electric water heater is widely used because of its convenient installation. The electric water heater generally comprises a liner and an electric heater, wherein the electric heater is arranged in the liner to heat water in the liner through the electric heater. For conventional water storage type electric water heater, it generally includes a water tank, an electric heating component and an electric control board, the water tank includes a housing and an inner container, the inner container is disposed in the housing, and a heat insulation layer is formed between the housing and the inner container to improve the heat insulation performance of the water tank. The liner is generally arranged laterally, whereas for heating pipes, which are generally arranged in the liner along the length direction of the liner, the heating pipes are energized to generate heat to heat the water in the liner. Conventional water tanks are generally cylindrical in structure, which results in a large space occupied by the electric water heater in a room, resulting in poor user experience. Chinese patent application number 201810022007.1 discloses an inner container for an electric water heater, which adopts a two-stage structure and forms a flat container shell, thereby reducing the occupation amount of indoor space. However, due to the limitation of the installation of the water inlet and outlet pipes, the water inlet and outlet is arranged on the straight line section of the liner, which increases the thickness dimension of the liner. In view of this, it is an object of the present invention to design a water heater technology with a small thickness to reduce the indoor space occupation and improve the user experience. Disclosure of Invention The invention provides a flat liner and an electric water heater, which can reduce the thickness of the flat liner, so as to improve the space utilization rate and further improve the user experience of the electric water heater. In order to achieve the technical purpose, the invention is realized by adopting the following technical scheme: In one aspect, the present invention provides a flat liner comprising: The inner container is provided with a tube seat with an integrated structure, and the tube seat is arranged on the cambered surface of the inner container and extends towards the outside of the inner container; A water pipe assembly including an insulating pipe and a water pipe inserted in the insulating pipe; the insulating pipe is arranged on the pipe seat, and the water pipe is inserted into the pipe seat and extends into the inner container. In an embodiment of the present application, the liner includes two liner shells, the liner shells are integrally in a cambered surface structure, and the tube seat is disposed on at least one liner shell. In one embodiment of the present application, the punched hole flanging on the liner shell forms the tube seat extending outwards. In one embodiment of the application, a connecting pipe is arranged on the pipe seat, an internal thread is arranged in the connecting pipe, a first embedded part is arranged at one end part of the insulating pipe, the first embedded part is of a barrel-shaped structure, an external thread is formed on the peripheral ring of the first embedded part, and the first embedded part is in threaded connection with the internal thread. In an embodiment of the present application, a sealing ring is further sleeved outside the first insert, and the sealing ring is extruded between the connecting pipe and the insulating pipe. In an embodiment of the present application, a second insert is disposed at the other end of the insulating tube, the second insert has a cylindrical structure, and an external thread is formed on an outer circumferential ring of the second insert. In an embodiment of the application, a sleeve is further arranged outside the water pipe, and a plurality of through holes are formed in the wall of the sleeve. In an embodiment of the application, a functional filter material is filled between the sleeve and the water pipe, and a first annular plug is arranged between the upper end of the sleeve and the water pipe. In one embodiment of the application, the lower end of the sleeve is connected to the insulating pipe, or the lower end of the sleeve is connected to the first embedded part, or a second annular plug is arranged between the lower end of the sleeve and the water pipe. The invention also provides an electric water heater, which comprises a shell and the flat inner contai