Heating device for electric water boiler

Abstract

A heating device for an electric water boiler includes a thick / thin film heating tube and two wiring terminals arranged on the thick / thin film heating tube, and also includes a water inlet guide seat, a water outlet guide seat, a pipe seat, an outer shell, an upper fixing ring and a lower fixing ring. The thick / thin electric heating tube extends from both ends of the tube body, and the gap between the thick / thin electric heating tube and the tube body constitutes a heat dissipation heat conduction cavity; the pipe seat is embedded in the outer shell, the water inlet guide seat body of the water inlet guide seat is inserted into the inner interface of the outer shell, the water guide interface pipe and the return water interface pipe are respectively plugged with the upper ends of the water inlet pipe part and the return water pipe part, and the upper end of the thick / thin electric heating tube is inserted into the upper pipe seat; the water guide interface pipe and the return water interface pipe of the water outlet guide seat are respectively plugged with the lower ends of the water inlet pipe part and the return water pipe part, and the water outlet guide seat body is fixed with the flange at the lower end of the outer shell. The heat emitted by the thick / thin electric heating tube is exchanged with the water inlet pipe part and the return water pipe part through the heat dissipation heat conduction cavity to preheat water, thereby improving the thermal efficiency and reducing the temperature rise of the thick / thin electric heating tube.

Description

Technical Field

[0001] The invention relates to a device for an electric water boiler, in particular to a water heating device. Background Art

[0002] The existing technology currently has a heating device for an electric water boiler, which includes a thick / thin film heating tube and two connection terminals arranged on the thick / thin film heating tube. The problems are: the thick / thin film heating tube dissipates heat to the surroundings, affecting other components, and the temperature itself is high; Summary of the invention

[0003] The purpose of the present invention is to provide a heating device for an electric water boiler, which can preheat water by utilizing waste heat and reduce the temperature rise of thick / thin film heating tubes.

[0004] The present invention is implemented as follows: a heating device for an electric water boiler includes a thick / thin film heating tube and two connecting terminals arranged on the thick / thin film heating tube, and its special features are: it also includes a water inlet guide seat, a water outlet guide seat, a tube seat, a shell, an upper fixing ring and a lower fixing ring,

[0005] The water inlet guide seat comprises a water inlet guide seat body, a water inlet joint, a water outlet interface pipe, an upper pipe seat and a water inlet interface pipe, and the water inlet interface pipe is communicated with the inner cavity of the upper pipe seat;

[0006] The water outlet seat includes a water outlet seat body, a hot water outlet joint, a lower pipe seat, a sink hole, a water guide interface pipe and a return water interface pipe. The hot water outlet joint, the lower pipe seat and the sink hole are connected, and the water guide pipe and the return water interface pipe are connected;

[0007] The pipe seat comprises a pipe body, a water inlet pipe portion and a water return pipe portion arranged on the pipe body;

[0008] The outer shell includes an inner interface arranged at the upper end, a pipe body cavity, a water inlet pipe cavity, a water return pipe cavity and a flange arranged at the lower end.

[0009] The thick / thin electric heating tube extends from both ends of the tube body, the interface of the upper fixing ring is plugged into the upper end of the tube body, the interface of the lower fixing ring is inserted into the lower end of the tube body, the thick / thin electric heating tube is fixed to the center holes of the upper fixing ring and the lower fixing ring, and the gap between the thick / thin electric heating tube and the tube body constitutes a heat dissipation and heat conduction cavity; the tube seat is embedded in the shell, and the tube body, the water inlet pipe part and the return water pipe part are respectively embedded with the tube body cavity, the water inlet pipe cavity and the return water pipe cavity; the water inlet seat body of the water inlet seat is inserted into the inner interface of the shell, the water guide interface pipe and the return water interface pipe are respectively plugged into the upper ends of the water inlet pipe part and the return water pipe part, and the upper end of the thick / thin electric heating tube is inserted into the upper tube seat; the water guide interface pipe and the return water interface pipe of the water outlet seat are respectively plugged into the lower ends of the water inlet pipe part and the return water pipe part, and the water outlet seat body is fitted and fixed with the flange at the lower end of the shell.

[0010] The heating device of the electric water boiler is special in that: among the wiring terminals, one wiring terminal is located in the inner interface of the shell, and the other wiring terminal is located in the countersunk hole of the water outlet seat.

[0011] The heating device of the electric water boiler is special in that the tube seat is made of metal material, the shell is made of plastic material, and the tube seat is pre-buried in the shell.

[0012] The heating device of the electric water boiler is special in that the pipe seat and the shell are made of plastic material and are formed in one step.

[0013] The heating device of the electric water boiler of the present invention adopts such a structure that the heat emitted by the thick / thin electric heating tube is exchanged with the water inlet pipe part and the water return pipe part through the heat dissipation and heat conduction cavity to preheat the water, thereby improving the thermal efficiency and reducing the temperature rise of the thick / thin electric heating tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a cross-sectional view of the present invention.

[0015] Figure 2 It is a three-dimensional cross-sectional view of the present invention.

[0016] Figure 3 It is a three-dimensional cross-sectional view of the water inlet guide seat of the present invention.

[0017] Figure 4 It is a bottom view of the shell of the present invention.

[0018] Figure 5 It is a top view of the housing of the present invention.

[0019] Figure 6 It is one of the three-dimensional exploded views of the present invention.

[0020] Figure 7 It is the second of the three-dimensional exploded diagrams of the present invention. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] like Figure 1 As shown, a heating device of an electric water boiler includes a thick / thin film heating tube 1 and two connecting terminals 2 arranged on the thick / thin film heating tube, and also includes a water inlet guide seat 3, a water outlet guide seat 4, a tube seat 5, a shell 6, an upper fixing ring 71 and a lower fixing ring 72.

[0023] like Figure 3 As shown, the water inlet guide seat 3 includes a water inlet guide seat body 31, a water inlet joint 32, a water outlet interface pipe 33, an upper pipe seat 34 and a water inlet interface pipe 35, and the water inlet interface pipe 35 is connected to the inner cavity of the upper pipe seat 34;

[0024] The water outlet seat 4 includes a water outlet seat body 41, a hot water outlet joint 42, a lower pipe seat 43, a sink hole 44, a water guide interface pipe 45 and a return water interface pipe 46. The hot water outlet joint 42, the lower pipe seat 43 and the sink hole 44 are connected. Figure 2 As shown, the water guide pipe 45 is connected to the water return pipe 46, and the water flow direction is the direction of the arrow in the figure;

[0025] The pipe seat 5 comprises a pipe body 51, a water inlet pipe portion 52 and a water return pipe portion 53 arranged on the pipe body;

[0026] The housing 6 includes an inner interface 61 at the upper end, a tube body cavity 62, a water inlet tube cavity 63, a water return tube cavity 64 and a flange 65 at the lower end.

[0027] The thick / thin electric heating tube 1 extends from both ends of the tube body 51, the interface of the upper fixing ring 71 is plugged into the upper end of the tube body 51, and the interface of the lower fixing ring 72 is inserted into the lower end of the tube body 51. The thick / thin electric heating tube 1 is fixed to the center holes of the upper fixing ring 71 and the lower fixing ring 72, and the gap between the thick / thin electric heating tube 1 and the tube body 51 constitutes a heat dissipation and heat conduction cavity; the tube seat 5 is embedded in the shell 6, and the tube body 51, the water inlet pipe part 52 and the water return pipe part 53 are respectively connected to the tube body cavity 62 and the water inlet pipe cavity 63, and the return pipe cavity 64 are embedded; the water inlet seat body 31 of the water inlet seat 3 is inserted into the inner interface 1 of the outer shell 6, the water guide interface pipe 33 and the return water interface pipe 35 are respectively plugged with the upper ends of the water inlet pipe part 52 and the return water pipe part 53, and the upper end of the thick / thin electric heating tube 1 is inserted into the upper tube seat 34; the water guide interface pipe 45 and the return water interface pipe 46 of the water outlet seat 4 are respectively plugged with the lower ends of the water inlet pipe part 52 and the return water pipe part 53, and the water outlet seat body 41 is fixed with the flange 65 at the lower end of the outer shell 6.

[0028] Among the wiring terminals 2 , one wiring terminal 2 is located in the inner interface 61 of the housing 6 , and the other wiring terminal 2 is located in the countersunk hole 44 of the water outlet seat 4 .

[0029] The tube base 5 is made of metal material, such as aluminum or copper; the shell 6 is made of plastic material, and the tube base 5 is pre-buried in the shell 6;

[0030] Or the tube base 5 and the shell 6 are made of plastic material and are formed in one step.

[0031] When the present invention is used, water from the source does not pass through the water inlet joint 32 of the water guide seat 3, the water outlet interface pipe 33, the water inlet pipe portion 52, the water guide interface pipe 45 and the return interface pipe 46 of the water guide seat 4, the return pipe portion 53, the water inlet interface pipe 35, the upper pipe seat 34, the thick / thin electric heating tube 1, and the lower pipe seat 43, but flows out from the hot water outlet joint 42.

[0032] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, which are also considered as the protection scope of the present invention.

Claims

1. A heating device for an electric water boiler, comprising a thick / thin film heating tube and two connection terminals arranged on the thick / thin film heating tube, characterized in that: It also includes an inlet water guide seat, an outlet water guide seat, a pipe seat, a shell, an upper fixing ring and a lower fixing ring. The water inlet guide seat comprises a water inlet guide seat body, a water inlet joint, a water outlet interface pipe, an upper pipe seat and a water inlet interface pipe, and the water inlet interface pipe is communicated with the inner cavity of the upper pipe seat; The water outlet seat includes a water outlet seat body, a hot water outlet joint, a lower pipe seat, a sink hole, a water guide interface pipe and a return water interface pipe. The hot water outlet joint, the lower pipe seat and the sink hole are connected, and the water guide pipe and the return water interface pipe are connected; The pipe seat comprises a pipe body, a water inlet pipe portion and a water return pipe portion arranged on the pipe body; The outer shell includes an inner interface arranged at the upper end, a pipe body cavity, a water inlet pipe cavity, a water return pipe cavity and a flange arranged at the lower end. The thick / thin electric heating tube extends from both ends of the tube body, the interface of the upper fixing ring is plugged into the upper end of the tube body, the interface of the lower fixing ring is inserted into the lower end of the tube body, the thick / thin electric heating tube is fixed to the center holes of the upper fixing ring and the lower fixing ring, and the gap between the thick / thin electric heating tube and the tube body constitutes a heat dissipation and heat conduction cavity; the tube seat is embedded in the shell, and the tube body, the water inlet pipe part and the return pipe part are respectively embedded with the tube body cavity, the water inlet pipe cavity and the return pipe cavity; the water inlet seat body of the water inlet seat is inserted into the inner interface of the shell, the water guide interface pipe and the return interface pipe are respectively plugged into the upper ends of the water inlet pipe part and the return pipe part, and the upper end of the thick / thin electric heating tube is inserted into the upper tube seat; the water guide interface pipe and the return interface pipe of the water outlet seat are respectively plugged into the lower ends of the water inlet pipe part and the return pipe part, and the water outlet seat body is fixed with the flange at the lower end of the shell; Among the wiring terminals, one wiring terminal is located in the inner interface of the housing, and the other wiring terminal is located in the countersunk hole of the water outlet seat; The water from the water source flows out from the hot water outlet joint through the water inlet joint of the water inlet seat, the water outlet interface pipe, the water inlet pipe part, the water outlet interface pipe and the return interface pipe, the return pipe part, the water inlet interface pipe, the upper pipe seat, the thick / thin electric heating pipe, and the lower pipe seat; The tube seat is made of metal material, the shell is made of plastic material, and the tube seat is pre-buried in the shell.

2. The heating device of an electric water boiler according to claim 1, characterized in that: The tube seat and the shell are made of plastic material and are formed in one step.

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