Heating tube mounting structure of electric water boiler

Abstract

The utility model discloses a heating tube mounting structure of an electric water boiler. The heating tube mounting structure comprises a fixing seat arranged on a water tank inner container of the electric water boiler, a plurality of screws are welded on the fixing seat, an opening is formed in the middle of the fixing seat, a limiting concave table is arranged on the periphery of the opening, and a sealing ring is arranged on the limiting concave table. The water heater further comprises a fixing disc, the fixing disc is provided with a heating pipe capable of penetrating through the opening of the fixing base to extend into the water tank inner container, the fixing disc is further provided with a plurality of screw holes allowing the screws to penetrate through, and the fixing disc is further provided with a limiting groove matched with the limiting concave table to fix the sealing ring. The heating tube and the inner container are reliably and stably connected, the structure is simple, assembly is convenient, and cost is low.

Description

[Technical Field]

[0001] This utility model relates to a heating element installation structure for an electric water heater. [Background Technology]

[0002] An electric water heater, also called a water boiler or simply a "water boiler," is a device designed to meet the diverse drinking water needs of different groups of people. It uses electricity to convert into heat energy to boil water. Compared to traditional coal-fired or gas-fired boilers, it offers advantages such as safety, low noise, and no pollution, and provides hot water at any time.

[0003] The inner tank of electric water heaters is typically made of stainless steel or other metal materials. These materials offer advantages such as strong corrosion resistance (especially suitable for areas with good water quality), high temperature stability, hygiene (does not release harmful substances), and high rigidity, making them resistant to deformation. The connection between the heating element and the metal inner tank is crucial; a poor connection can easily lead to leaks.

[0004] The purpose of this invention is to solve the problem of connecting and installing the heating element and the inner liner. [Summary of the Invention]

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a heating element installation structure for an electric water heater that is reliable and stable in connecting the heating element and the inner tank, has a simple structure, is easy to assemble, and is low in cost.

[0006] The purpose of this utility model is achieved as follows:

[0007] A heating element installation structure for an electric water heater is characterized by comprising a fixing seat disposed on the inner tank of the electric water heater, wherein multiple screws are welded on the fixing seat, an opening is provided in the middle of the fixing seat, a limiting recess is provided around the opening, and a sealing ring is provided on the limiting recess; it also comprises a fixing plate, wherein the fixing plate is provided with a heating element that can pass through the opening of the fixing seat and extend into the inner tank of the water tank, the fixing plate is also provided with multiple screw holes for the screws to pass through, and the fixing plate is also provided with a limiting groove that cooperates with the limiting recess to fix the sealing ring.

[0008] The heating element installation structure of an electric water heater as described above is characterized in that an annular ring is provided on the inner edge of the limiting recess, and the fixing plate is provided with a connecting part that cooperates with the annular ring.

[0009] The heating element installation structure of the electric water heater described above is characterized in that the fixing base and the inner tank of the water tank are an integral structure, and the square part protruding from the inner tank of the water tank is formed by stamping.

[0010] The heating element mounting structure of an electric water heater as described above is characterized in that the fixing plate is square.

[0011] The electric water boiler heating tube mounting structure as claimed in claim 1, wherein the opening in the middle of the fixing base is circular, the limiting recess is also circular, and the annular ring on the inner edge of the limiting recess is also circular.

[0012] The electric water boiler heating tube mounting structure as claimed in claim 1, wherein the connecting portion is conical.

[0013] The electric water boiler heating tube mounting structure as claimed in claim 1, wherein the connecting portion is conical.

[0014] The electric water boiler heating tube mounting structure as claimed in claim 1, wherein the connecting portion is conical.

DRAWING DESCRIPTION

[0015] Figure 1 is a structural diagram of the electric water boiler heating tube mounting structure;

[0016] Figure 2 is a structural diagram of the electric water boiler heating tube mounting structure; Figure 1

[0017] Figure 3 is a structural diagram of the electric water boiler heating tube mounting structure;

[0018] Figure 4 is a structural diagram of the electric water boiler heating tube mounting structure;

[0019] Figure 5 is a sectional view of the electric water boiler heating tube mounting structure;

[0020] Figure 6 is a sectional view of the electric water boiler heating tube mounting structure; Figure 5

CONCRETE IMPLEMENTATION

[0021] The electric water boiler heating tube mounting structure as claimed in claim 1, wherein the connecting portion is conical.

[0022] The electric water boiler heating tube mounting structure as claimed in claim 1, wherein the connecting portion is conical.

[0023] The electric water boiler heating tube mounting structure as claimed in claim 1, wherein the connecting portion is conical. Figure 3 ​​As shown, in the embodiment, the four screw rods 3 are welded at the four corners of the fixing base 2, preferably, welding positions 21 are respectively arranged at the four corners of the fixing base 2, and the four screw rods 3 are welded with the welding positions by resistance welding or gas shield welding. The welding position 21 is preferably designed as a groove recessed to the inner side of the inner cavity, and the area of the groove is slightly larger than that of the side of the screw rod, so as to facilitate welding.

[0024] The inner edge of the limiting recess 5 is provided with an annular ring 12, the annular ring 12 is closed, the annular ring 12 and the fixing base 2 are integrated structures, and the fixing disc 7 is provided with a connecting part 13 matched with the annular ring 12.

[0025] The connecting part 13 is conical, the outer side is large and the inner side is small, and the connecting part 13 and the fixing disc 7 are integrated structures.

[0026] The fixing disc 7 is preferably integrally made of metal materials such as stainless steel.

[0027] The fixing base 2 and the water tank inner container 1 are integrated structures, and are formed by stamping the water tank inner container to protrude from the square part of the water tank inner container.

[0028] The opening 4 in the middle of the fixing base 2 is circular, the limiting recess 5 is also circular, and the annular ring 12 in the inner edge of the limiting recess 5 is also circular.

[0029] The edge of the fixing disc 7 is further provided with an outwardly protruding flange 14.

Claims

1. A heating element installation structure for an electric water heater, characterized in that... It includes a fixing seat (2) installed on the inner tank (1) of the electric water heater, with multiple screws (3) welded on the fixing seat (2), an opening (4) in the middle of the fixing seat (2), a limiting recess (5) around the opening (4), and a sealing ring (6) on the limiting recess (5); it also includes a fixing plate (7), with a heating tube (8) that can pass through the opening of the fixing seat and extend into the inner tank of the water heater, and multiple screw holes (9) for the screws to pass through, and a limiting groove (11) that cooperates with the limiting recess (5) to fix the sealing ring (6).

2. The heating element installation structure of an electric water heater according to claim 1, characterized in that... The inner edge of the limiting recess (5) is provided with an annular ring (12), and the fixing plate (7) is provided with a connecting part (13) that mates with the annular ring.

3. The heating element installation structure of an electric water heater according to claim 1, characterized in that... The fixing seat (2) and the inner tank (1) are an integral structure, and the square part protruding from the inner tank is formed by stamping the inner tank.

4. The heating element installation structure of an electric water heater according to claim 1, characterized in that... The fixed plate (7) is square.

5. The heating element installation structure of an electric water heater according to claim 1, characterized in that... The opening (4) in the middle of the fixed base (2) is circular, the limiting recess (5) is also circular, and the annular ring (12) on the inner side of the limiting recess (5) is also circular.

6. The heating element installation structure of an electric water heater according to claim 2, characterized in that... The connecting part (13) is conical.

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