An instant electric water heating device

Abstract

The application discloses a kind of instant electric water heating device, including electric heating tube, terminal, main control board, water guide pipe, rotor, water inlet joint, water outlet joint, heat conduction sleeve and preheating water pipe, shaft sleeve is rotationally engaged with water guide pipe, rotor and water guide pipe are arranged in electric heating tube, spiral plate is rotationally engaged with electric heating tube and constitutes threaded water passage;Electric heating tube is connected with upper water conversion cavity and lower water conversion cavity respectively, the upper end of water guide pipe is inserted with center pipe seat and is communicated, the frustum of cone of column conical table shape spare supports the lower end of water guide pipe;Heat conduction sleeve surrounds electric heating tube, preheating water pipe and heat conduction sleeve are attached and are communicated with preheating water inlet interface pipe and preheating water outlet interface pipe respectively;Terminal hole of terminal around electric heating tube, heat conduction sleeve is equipped with heat insulation insulating part, terminal is stretched out from heat insulation insulating part and is connected with main control board.Rotor rotates in electric heating tube, and heating speed is accelerated, and rotor cleans the inner wall of electric heating tube and prevents scale;The setting of heat conduction sleeve and preheating water pipe makes full use of the outer surface temperature of electric heating tube, and energy is saved.

Description

Technical Field

[0001] This utility model relates to an instant electric water heater. Background Technology

[0002] Current technology, specifically Chinese patent 201620683425.1, describes an instantaneous combined heating element, comprising a shell, a thick-film instantaneous heating element inserted into the shell, a central screw inserted into the heating element, and end caps sealing the bottom and top of the shell. The central screw has a rotating groove at its end, which causes the sidewall of the central screw end to gradually thicken axially. The end cap has an annular flange extending into the heating element. The annular flange extends into the groove and radially presses against the sidewall of the central screw end, causing it to tightly adhere to the inner wall of the heating element. In other words, the annular flange extending into the groove converts axial displacement into radial displacement, driving the outer wall of the groove to tightly adhere to the inner wall of the heating element, thus fixing the central screw inside the heating element. The problems are: it produces scale and wastes residual heat on the outer surface of the heating element. Utility Model Content

[0003] The purpose of this invention is to provide an instant electric water heater that features rapid heating, scale prevention, and full utilization of thermal energy.

[0004] This utility model is implemented as follows: an instant electric water heater, characterized in that it includes an electric heating element, wiring terminals, a main control board, a water pipe, a rotor, an inlet connector, an outlet connector, a heat-conducting sleeve, and a preheating water pipe.

[0005] The rotor includes a bushing and a spiral plate mounted on the bushing.

[0006] The water inlet connector includes a water inlet interface pipe, a preheated water inlet interface pipe connected to the water inlet interface pipe, a top-opening drain conversion chamber, and a truncated columnar cone-shaped component, on which an axial water groove is provided;

[0007] The water outlet connector includes a water outlet interface pipe, a central tube seat with a lower opening, a preheated water outlet interface pipe, and a water inlet conversion chamber. The central tube seat is located inside the water outlet interface pipe, and the preheated water outlet interface pipe passes through the water outlet interface pipe and communicates with the central tube seat.

[0008] The bushing rotates and engages with the water guide pipe. The rotor and the water guide pipe are located inside the electric heating tube. The spiral plate rotates and engages with the electric heating tube, forming a threaded water channel. The two ends of the electric heating tube are connected to the upper water conversion chamber and the lower water conversion chamber, respectively. The upper end of the water guide pipe is inserted into and connected to the central tube seat. The frustum-shaped part of the columnar conical component supports the lower end of the water guide pipe. The heat-conducting sleeve surrounds the electric heating tube, and the preheating hot water pipe is fitted with the heat-conducting sleeve and connected to the preheating inlet interface pipe and the preheating outlet interface pipe, respectively. The wiring terminals are provided with heat-insulating components in the terminal holes surrounding the electric heating tube and the heat-conducting sleeve. The wiring terminals extend from the heat-insulating components and are connected to the main control board. The heat-insulating sleeve is located in the terminal holes.

[0009] Preferably, the heat-conducting sleeve includes a left half and a right half.

[0010] The right half has longitudinal insertion slots at both ends of the circumference and a left half terminal hole at one end, and a longitudinal tube groove in the middle of the outer circumference surface.

[0011] The left half of the outer peripheral part has a longitudinal groove in the middle and a right half terminal hole at one end of the circumference.

[0012] The two circumferential ends of the right half are inserted into the longitudinal insertion groove, and the left half terminal hole and the right half terminal hole form a terminal hole; the preheating water pipe is embedded in the longitudinal pipe groove.

[0013] Preferably, there are two preheating water inlet pipes and two preheating water outlet pipes, which are on the same diameter line;

[0014] It also includes a connector with one end open, and the connector has a radial tube hole;

[0015] The preheating inlet pipe and the preheating outlet pipe are respectively inserted into and sealed to the connector body of the connector, and the radial pipe holes of the connector on the preheating inlet pipe and the preheating outlet pipe are opposite to each other; the two ends of the preheating hot water pipe are respectively inserted into and connected to the radial pipe holes.

[0016] Preferably, the water inlet interface pipe of the water inlet connector is provided on a bracket plate with a diameter line, and the bracket plate is provided with fixing seats on both sides;

[0017] The water outlet pipe of the water outlet connector is provided on a bracket plate with a diameter line, and fixed seats are provided on both sides of the bracket plate.

[0018] It also includes a frame-shaped fixing bracket with one end open, and fixing feet are provided on the longitudinal plates of the frame-shaped fixing bracket.

[0019] The fixed foot plate and the fixed base are fixed with screws, and the horizontal plate of the frame-shaped fixing frame fixes the connector.

[0020] Preferably, there is a gap between the heat-conducting sleeve and the heating element.

[0021] Preferred: also includes a water flow sensor body and a Hall sensor,

[0022] The main body of the water flow sensor is located inside the water inlet pipe, and the Hall sensor is located on the water inlet pipe and works in conjunction with the main body of the water flow sensor.

[0023] Preferably, the terminal block includes an annular portion with an opening, a long terminal plate and a short terminal plate at one end, the short terminal plate having a connecting hole and the long terminal plate having a screw hole;

[0024] The screw passes through the connecting hole and engages with the screw hole to fix the annular part and the heating element; the long terminal plate extends from the heat insulation component.

[0025] Preferably, the main control board is provided with a plug-in hole.

[0026] The long terminal board is inserted into the plug hole and supports the main control board.

[0027] Preferably, it also includes a heat insulation plate, which is located between the main control board and the heat-conducting sleeve.

[0028] Preferably, the heating element has external threads at both ends, and the two ends of the heating element are screwed into and sealed with the water inlet conversion chamber and the water outlet conversion chamber;

[0029] It may also include metal sleeves, which are pre-embedded in the water supply conversion cavity and the water supply conversion cavity respectively;

[0030] The heating element is inserted into the metal sleeve, and the suspended end of the metal sleeve is welded to the metal element.

[0031] This utility model discloses an instant electric water heater. The rotor rotates inside the heating tube, which accelerates the heating speed and cleans the inner wall of the heating tube from scale. The heat-conducting jacket and preheating water pipe make full use of the outer surface temperature of the heating tube, thus saving energy. Attached Figure Description

[0032] Figure 1 This is a cross-sectional view of the present invention.

[0033] Figure 2 yes Figure 1 A-A view.

[0034] Figure 3 yes Figure 2 B-B view.

[0035] Figure 4 This is a perspective view of the present invention.

[0036] Figure 5 This is one of the exploded perspective views of this utility model.

[0037] Figure 6 This is the second exploded perspective view of this utility model.

[0038] Figure 7 This is the third exploded perspective view of this utility model.

[0039] Figure 8 This is a perspective view of the water inlet connector of this utility model.

[0040] Figure 9 This is a three-dimensional sectional view of the water inlet connector of this utility model.

[0041] Figure 10 This is a three-dimensional sectional view of the water outlet connector of this utility model.

[0042] Figure 11 This is a bottom view of the water outlet connector of this utility model.

[0043] Figure 12 This is a cross-sectional view of the second embodiment of this utility model. Detailed Implementation

[0044] The embodiments of this utility model are described in detail below. Examples of these embodiments 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 embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0045] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0046] like Figure 1 , Figure 2 As shown, an instant electric water heater includes a heating element 1, a terminal block 2, a main control board 3, a water pipe 4, a rotor 5, an inlet connector 6, an outlet connector 7, a heat-conducting sleeve 8, and a preheating water pipe 9.

[0047] Heating element 1 is a thick-film / thin-film heating element, or a resistance heating element;

[0048] The rotor 5 includes a bushing 51 and a spiral plate 52 disposed on the bushing 51.

[0049] like Figure 8 , Figure 9 As shown, the water inlet connector 6 includes a water inlet interface pipe 61, a preheating water inlet interface pipe 62 connected to the water inlet interface pipe 61, a drain conversion chamber 63 with an upper opening, and a columnar-conical-shaped component 64, with an axial water groove provided on the columnar-conical-shaped component 64.

[0050] like Figure 10 , Figure 11 As shown, the water outlet connector 7 includes a water outlet interface pipe 71, a lower-opening central pipe seat 72, a preheated water outlet interface pipe 73, and a water inlet conversion chamber 74. The central pipe seat 72 is located inside the water outlet interface pipe 71, and the preheated water outlet interface pipe 73 passes through the water outlet interface pipe 71 and communicates with the central pipe seat 72. There is a water guiding gap between the central pipe seat 72 and the water outlet interface pipe 71.

[0051] The bushing 51 is rotatably engaged with the water guide pipe 4. The rotor 5 and the water guide pipe 4 are located inside the electric heating tube 1. The spiral plate 52 is rotatably engaged with the inner surface of the electric heating tube 1 and forms a spiral water channel. Alternatively, the inner surfaces of the rotor 5 and the electric heating tube 1 form a spiral water channel. The two ends of the electric heating tube 1 are respectively connected and fixed to the upper water conversion chamber 74 and the lower water conversion chamber 63. The upper end of the water guide pipe 4 is inserted into and connected to the central tube seat 72. The frustum-shaped part 641 of the column-cone-shaped part 64 supports the lower end of the water guide pipe 4. This structure facilitates assembly and prevents the water guide pipe 4 from moving up and down. The heat-conducting sleeve 8 surrounds the electric heating tube 1. The preheating water pipe 9 is fitted with the heat-conducting sleeve 8 and is respectively connected to the preheating water inlet interface pipe 62 and the preheating water outlet interface pipe 73. The wiring terminal 2 is provided with a heat-insulating part 10 in the terminal hole surrounding the electric heating tube 1 and the heat-conducting sleeve 8. The wiring terminal 2 extends out from the heat-insulating part 10 and is connected to the main control board 3.

[0052] With this structure, the heat-conducting sleeve 8 absorbs the heat energy released from the outer surface of the heating tube 1, and the heat-conducting sleeve 8 transfers the heat energy to the preheating water pipe 9 to preheat the water.

[0053] In use, water enters the lower water conversion chamber 64 through the water inlet pipe 61, the preheating water inlet pipe 62, the preheating hot water pipe 9, the preheating water outlet pipe 73, the central pipe seat 72, and the water guide pipe 4; the water drives the rotor 5 to rotate, and the water flows upward spirally through the spiral water channel in the electric heating tube 1 and finally enters the upper water conversion chamber 74, and then flows out through the gap between the central pipe seat 72 and the water outlet pipe 71.

[0054] The water guide pipe 4 and the bushing 51 are rotatably fitted and sealed. The lower end of the water guide pipe 4 is provided with an annular flange and the upper part is provided with an annular baffle. The bushing rotates on the water guide pipe 4 between the annular flange and the annular baffle. There are movable gaps between the upper end and the lower end of the water guide pipe 4 and the annular flange and the annular baffle, respectively.

[0055] The heat-conducting sleeve 8 includes a right half 81 and a left half 82.

[0056] The right half 81 has longitudinal insertion grooves 811 at both ends of the circumferential direction and a left half terminal hole at one end of the circumferential direction. The middle part of the outer circumferential surface has a longitudinal tube groove 83.

[0057] The left half 82 has a longitudinal tube groove 83 in the middle of the outer peripheral part and a right half terminal hole at one end of the circumference.

[0058] The two circumferential ends of the left half 82 are inserted into the longitudinal insertion groove 811, and the left half terminal hole and the right half terminal hole constitute the terminal hole; the preheating water pipe 9 is embedded in the longitudinal pipe groove 83.

[0059] As a further improvement of this utility model: two preheating water inlet pipes 62 and two preheating water outlet pipes 73 are provided and are on the same diameter line;

[0060] It also includes a connector 11 with one end open, and the connector 11 has a radial tube hole 111;

[0061] The preheating water inlet pipe 62 and the preheating water outlet pipe 73 are respectively inserted into and sealed with the connector 11, and the radial pipe holes 111 on the connector 11 on the preheating water inlet pipe 62 and the preheating water outlet pipe 73 are opposite to each other; the two ends of the preheating water pipe 9 are respectively inserted into and sealed with the radial pipe holes 111 and connected.

[0062] As a further improvement of this utility model: the water inlet interface pipe 61 of the water inlet connector 6 is provided with a bracket plate 65 on a diameter line, and the bracket plate 65 is provided with a fixing seat 651 on both sides; the end is provided with a connecting hole 652.

[0063] The water outlet pipe 71 of the water outlet connector 7 is provided on a bracket plate (not marked) with a diameter line, and the two ends of the bracket plate are provided with fixing seats.

[0064] It also includes a frame-shaped fixing bracket 12 with one end open, and fixing feet 121 are provided on the longitudinal plate of the frame-shaped fixing bracket 12.

[0065] The fixed foot plate 121 and the fixed base 651 are fixed with screws, and the horizontal plate 122 of the frame-shaped fixing bracket 12 fixes the connector 11.

[0066] There is a gap between the heat-conducting sleeve 8 and the heating element 1.

[0067] As a further improvement of this utility model: it also includes a water flow sensing body 13 and a Hall sensor.

[0068] The water flow sensor body 13 is disposed inside the water inlet pipe 61, and the Hall sensor is disposed on the water inlet pipe 61 and cooperates with the water flow sensor body 13. The water flow sensor body 131 has been disclosed in Chinese Patent 202123056203.7, Utility Model Title: A Built-in Water Flow Sensor Body.

[0069] As a further improvement of this utility model: the terminal block 2 includes an annular portion 21 with an opening, a long terminal plate 22 and a short terminal plate 23 at one end, the short terminal plate 23 is provided with a connecting hole and the long terminal plate 22 is provided with a screw hole;

[0070] The screw passes through the connecting hole and engages with the screw hole to fix the annular part 21 and the heating tube 1; the long terminal plate 22 extends from the heat insulation component 10.

[0071] As a further improvement of this utility model: the main control board 3 is provided with a plug-in hole 31.

[0072] The long terminal block 22 is inserted into the insertion hole 31 and supports the main control board 3.

[0073] As a further improvement of this utility model, it also includes a heat insulation plate 13, which is disposed between the main control board 3 and the heat-conducting sleeve 8 to protect the main control board 3.

[0074] As a further improvement to this utility model: such as Figure 1 As shown, the electric heating tube 1 has external threads 1A at both ends, and the external threads 1A on the electric heating tube are screwed into and sealed with the water inlet conversion chamber and the water outlet conversion chamber, respectively.

[0075] This utility model can also be implemented in the following way: (e.g.) Figure 12 As shown, it also includes a metal sleeve 14, one end of which is provided with an inner annular plate 141 and an annular groove 142 on the outer circumferential surface;

[0076] Metal sleeves 14 are pre-embedded in the water inlet conversion cavity 74 and the water outlet conversion cavity 63, respectively;

[0077] The metal tube 1 is inserted into the metal sleeve 14, and the suspended end of the metal sleeve 14 is welded to the metal tube 1.

[0078] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An instant electric water heater, characterized in that: Includes heating element, terminal block, main control board, water pipe, rotor, inlet connector, outlet connector, heat-conducting sleeve, and preheating water pipe. The rotor includes a bushing and a spiral plate mounted on the bushing. The water inlet connector includes a water inlet interface pipe, a preheated water inlet interface pipe connected to the water inlet interface pipe, a top-opening drain conversion chamber, and a truncated columnar cone-shaped component, on which an axial water groove is provided; The water outlet connector includes a water outlet interface pipe, a central tube seat with a lower opening, a preheated water outlet interface pipe, and a water inlet conversion chamber. The central tube seat is located inside the water outlet interface pipe, and the preheated water outlet interface pipe passes through the water outlet interface pipe and communicates with the central tube seat. The bushing rotates and engages with the water guide pipe. The rotor and the water guide pipe are located inside the electric heating tube. The spiral plate rotates and engages with the electric heating tube, forming a threaded water channel. The two ends of the electric heating tube are connected to the upper water conversion chamber and the lower water conversion chamber, respectively. The upper end of the water guide pipe is inserted into and connected to the central tube seat. The frustum-shaped part of the columnar conical component supports the lower end of the water guide pipe. The heat-conducting sleeve surrounds the electric heating tube, and the preheating hot water pipe is fitted with the heat-conducting sleeve and connected to the preheating inlet pipe and the preheating outlet pipe, respectively. The wiring terminals are provided with heat-insulating components in the terminal holes surrounding the electric heating tube and the heat-conducting sleeve. The wiring terminals extend from the heat-insulating components and are connected to the main control board.

2. The instantaneous electric water heater according to claim 1, characterized in that: The heat-conducting sleeve includes a left half and a right half. The right half has longitudinal insertion slots at both ends of the circumference and a left half terminal hole at one end, and a longitudinal tube groove in the middle of the outer circumference surface. The left half of the outer peripheral part has a longitudinal groove in the middle and a right half terminal hole at one end of the circumference. The two circumferential ends of the right half are inserted into the longitudinal insertion groove, and the left half terminal hole and the right half terminal hole form a terminal hole; the preheating water pipe is embedded in the longitudinal pipe groove.

3. The instantaneous electric water heater according to claim 1, characterized in that: The preheating water inlet interface pipe and the preheating water outlet interface pipe are each provided in two parts and are on the same diameter line; It also includes a connector with one end open, and the connector has a radial tube hole; The preheating inlet pipe and the preheating outlet pipe are respectively inserted into and sealed with the connector, and the radial pipe holes of the connector on the preheating inlet pipe and the preheating outlet pipe are opposite to each other; the two ends of the preheating water pipe are respectively inserted into and connected to the radial pipe holes.

4. The instantaneous electric water heater according to claim 3, characterized in that: The water inlet connector has a water inlet interface pipe with a bracket plate on a diameter line, and the bracket plate has fixed seats on both sides. The water outlet connector has a water outlet interface pipe with a bracket plate on a diameter line, and the bracket plate has fixed seats on both sides. It also includes a frame-shaped fixing bracket with one end open, and fixing feet are provided on the longitudinal plates of the frame-shaped fixing bracket. The fixed foot plate and the fixed base are fixed with screws, and the horizontal plate of the frame-shaped fixing frame fixes the connector.

5. The instantaneous electric water heater according to claim 1, characterized in that: There is a gap between the heat-conducting sleeve and the heating element.

6. The instantaneous electric water heater according to claim 1, characterized in that: It also includes a water flow sensor and a Hall sensor. The main body of the water flow sensor is located inside the water inlet pipe, and the Hall sensor is located on the water inlet pipe and works in conjunction with the main body of the water flow sensor.

7. The instantaneous electric water heater according to claim 1, characterized in that: The terminal block includes an annular portion with an opening, a long terminal plate and a short terminal plate at one end, the short terminal plate having a connection hole and the long terminal plate having a screw hole; The screw passes through the connecting hole and engages with the screw hole to fix the annular part and the heating element; the long terminal plate extends from the heat insulation component.

8. The instantaneous electric water heater according to claim 7, characterized in that: The main control board is equipped with a plug-in hole. The long terminal board is inserted into the plug hole and supports the main control board.

9. An instantaneous electric water heater according to claim 8, characterized in that: It also includes a heat insulation plate, which is placed between the main control board and the heat-conducting sleeve.

10. An instantaneous electric water heater according to claim 1, characterized in that: The electric heating tube has external threads at both ends, and the two ends of the electric heating tube are screwed into and sealed with the water inlet conversion chamber and the water outlet conversion chamber; It may also include metal sleeves, which are pre-embedded in the water supply conversion cavity and the water supply conversion cavity respectively; The heating element is inserted into the metal sleeve, and the suspended end of the metal sleeve is welded to the metal element.

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