Instant electric water heating device and instant electric water heater

Abstract

The instant heating type electric water heating device comprises a circuit board, a thick film / thin film heating pipe, a wiring terminal, a spiral piece, a water inlet pipe fitting and a water outlet pipe fitting, the spiral piece comprises a rotating shaft and a spiral plate, and the water inlet pipe fitting comprises an external thread water inlet connector part, a lower shaft body, a lower radial rib, a fixed seat plate and a water outlet insertion part; the water outlet pipe fitting comprises a water inlet inserting part, an upper shaft body, an upper radial rib, a fixed seat plate and an external thread water outlet connector part; the water outlet insertion part is inserted into the lower end of the thick film / thin film heating tube and sealed, and the water inlet insertion part is inserted into the upper end of the thick film / thin film heating tube and sealed; the spiral piece is arranged in the thick film / thin film heating pipe, a gap is formed between the spiral plate and the inner wall of the thick film / thin film heating pipe, and the two ends of the rotating shaft are rotationally matched with the end of the upper shaft body and the end of the lower shaft body respectively. The two ends of the rotating shaft are in running fit with the end faces of the upper shaft body and the lower shaft body, blocking is prevented, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to an instant electric water heater. Background Art

[0002] The current existing technology, Chinese patent 201921077065.0, discloses a built-in descaling device for a resistance heating tube, comprising a resistance heating tube, a heating cavity provided inside the resistance heating tube, a descaling device embedded inside the heating cavity, a fixed sleeve installed at one end of the descaling device, and the descaling device is specifically made of a spiral, one end of the spiral is provided with a rotating shaft, and the fixed sleeve is installed on the rotating shaft. When cold water enters from the left end of the resistance heating tube, the cold water will flow along the spiral rod and the rotating rod, thereby driving the spiral rod and the rotating rod to rotate rapidly. The spiral rod will rub against the inner wall of the heating cavity during the rotation process, and the rotating rod can throw the cold water onto the inner wall of the heating cavity under the action of centrifugal force during the rotation process, so that the scale on the inner wall of the resistance heating tube can be better removed. The problem is that the spiral is easily deformed, causing it to get stuck and unable to rotate. Utility Model Content

[0003] The purpose of the utility model is to provide an instant electric water heater, which has the characteristic of preventing the spiral parts from getting stuck.

[0004] The utility model is realized as follows: an instant electric water heater, which is special in that it includes a circuit board, a thick film / thin film heating tube, a terminal, a spiral part, a water inlet pipe and a water outlet pipe.

[0005] The spiral member includes a rotating shaft and a spiral plate arranged on the rotating shaft.

[0006] The water inlet pipe fitting includes an external threaded water inlet joint, a lower shaft body and lower radial ribs, a fixed seat plate and a water outlet plug-in part, and the lower shaft body extends out of the water outlet plug-in part;

[0007] The water outlet pipe fitting includes a water inlet plug-in part, an upper shaft body and upper radial ribs, a fixed seat plate and an external threaded water outlet joint part, and the upper shaft body extends out of the water inlet plug-in part;

[0008] The upper and lower ends of the thick film / thin film heating tube are respectively provided with terminal blocks, which are connected to the circuit board; the water outlet plug is inserted into the lower end of the thick film / thin film heating tube and is sealed, and the water inlet plug is inserted into the upper end of the thick film / thin film heating tube and is sealed; the spiral part is arranged in the thick film / thin film heating tube, and there is a gap between the spiral plate and the inner wall of the thick film / thin film heating tube, and the two ends of the rotating shaft are respectively rotated with the ends of the upper shaft body and the lower shaft body.

[0009] Preferably, it further comprises a heat-insulating sleeve, which wraps the thick film / thin film heating tube and the terminal.

[0010] Preferably, the wiring terminal comprises an arc-shaped portion with an opening, fastening plates provided at both ends, and a wiring board provided on one fastening plate; the fastening plate is provided with a connecting hole;

[0011] Also includes bolts and nuts,

[0012] The superior arc-shaped portion is sleeved on the thick film / thin film heating tube, the bolt passes through the connecting hole and is screwed with the nut; the wiring board is fixed to the fixing hole on the circuit board.

[0013] Preferably, both ends of the rotating shaft are hemispherical; and the ends of the upper shaft body and the lower shaft body are hemispherical.

[0014] Preferably, it further includes a thyristor and a heat conductor, the heat conductor surrounds the lower end of the thick film / thin film heating tube, and the thyristor is fitted and fixed to the heat conductor.

[0015] Preferably: further comprising an ultrasonic vibrator;

[0016] The heat conducting member is provided with a cavity, and the ultrasonic vibrator is arranged in the cavity.

[0017] Preferably: the water outlet pipe is provided with a sensor installation hole;

[0018] It also includes a temperature sensor, which is arranged in the sensor installation hole and extends into the water outlet pipe.

[0019] Preferably: it also includes a water flow sensing body and a Hall sensor,

[0020] The water flow sensing body is arranged in the water inlet end of the water inlet pipe, and the Hall sensor is arranged on the water inlet pipe and cooperates with the water flow sensing body.

[0021] An instant electric water heater, which is special in that it comprises a housing, a hanging base plate and the instant electric water heater device described above,

[0022] The top and bottom of the shell are respectively provided with a top hole and a bottom hole, and the back plate is provided with a hanging hole;

[0023] The hanging seat plate is provided with two hooks and fixing holes arranged upper and lower;

[0024] The instant electric water heater is fixed to a housing through a fixed seat plate, and an external threaded water outlet joint and an external threaded water inlet joint extend out of the housing through a top hole and a bottom hole respectively, and the hanging hole is matched with a hook.

[0025] The instant electric water heater is special in that the shell comprises a front half shell and a rear half shell.

[0026] The front half shell includes a window on the front wall, a front fixed column seat, a front top half hole and a front bottom half hole.

[0027] The rear half shell includes the hanging hole, rear support column seat, rear top half hole and rear bottom half hole on the rear back plate; the rear support column seat is provided with a countersink, a connecting hole and a head hole;

[0028] The fixed seat plate is provided with a through hole, a seat countersunk hole and a seat plug sleeve.

[0029] The seat connector is inserted into the countersunk hole of the rear support column seat, the front fixed column seat is inserted into the seat countersunk hole, the screw passes through the connecting hole, the fixed seat plate is screwed with the front fixed column seat, and the screw passes through the connecting hole and is screwed with the front fixed column seat; the front top half hole and the front bottom half hole and the rear top half hole and the rear bottom half hole form the top hole and the bottom hole;

[0030] Also includes a display,

[0031] The display is integrated with the window.

[0032] The instant electric water heater of the utility model has two ends of the rotating shaft that are rotatably matched with the end faces of the upper shaft body and the lower shaft body, thereby preventing jamming and extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a three-dimensional diagram of the present utility model.

[0034] Figure 2 This is one of the cross-sectional views of the present invention.

[0035] Figure 3 This is the second sectional view of the present invention.

[0036] Figure 4 This is one of the three-dimensional exploded views of the present invention.

[0037] Figure 5 This is the second three-dimensional exploded view of the present invention.

[0038] Figure 6 It is a three-dimensional exploded view of the wiring terminal of the present utility model.

[0039] Figure 7 It is a perspective view of the second embodiment of the present utility model.

[0040] Figure 8 It is a cross-sectional view of the second embodiment of the present invention.

[0041] Figure 9 yes Figure 8 A-A view.

[0042] Figure 10 This is one of the three-dimensional exploded views of the second embodiment of the present invention.

[0043] Figure 11 This is the second exploded perspective view of the second embodiment of the present invention. DETAILED DESCRIPTION

[0044] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0045] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediary, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0046] Example 1

[0047] like Figure 1 、 Figure 4 、 Figure 5 As shown, an instant electric water heater 1 includes a circuit board 2, a thick film / thin film heating tube 3, a terminal 4, a screw 5, a water inlet pipe 6 and a water outlet pipe 7.

[0048] The spiral member 5 includes a rotating shaft 51 and a spiral plate 52 provided on the rotating shaft 51. The spiral member 5 is made of a high-temperature resistant plastic material. The spiral member 5 is provided with one, two or more spiral plates 52.

[0049] The water inlet pipe fitting 6 includes an externally threaded water inlet joint 61, a lower shaft body 62, lower radial ribs (not labeled), a fixed seat plate, and a water outlet plug-in portion 63. The fixed seat plates are arranged on the left and right sides. The lower radial ribs are fixed to one end of the lower shaft body 62 and the inner wall of the water inlet pipe fitting 6. The lower shaft body and the inner wall of the water inlet pipe fitting 6 between two adjacent lower radial ribs form a water guide hole; the lower shaft body 62 extends out of the water outlet plug-in portion 63.

[0050] The water outlet pipe 7 includes a water inlet plug-in portion 71, an upper shaft 72, upper radial ribs, a fixed seat plate and an externally threaded water outlet joint portion 73, and the upper shaft 72 extends out of the water inlet plug-in portion 71;

[0051] The thick film / thin film heating tube 3 is provided with terminal blocks 4 at the upper and lower ends, respectively, and the terminal blocks 4 are connected to the circuit board 2; the water outlet connector 63 is inserted into the lower end of the thick film / thin film heating tube 3 and sealed, and the water inlet connector 71 is inserted into the upper end of the thick film / thin film heating tube 3 and sealed; the spiral member 5 is provided in the thick film / thin film heating tube 3, with a gap between the spiral plate 52 and the inner wall of the thick film / thin film heating tube 3, and the ends of the rotating shaft 51 are respectively rotatably engaged with the ends of the upper shaft 72 and the lower shaft 62;

[0052] The ends of the rotating shaft 51 rotate in conjunction with the ends of the upper shaft body 72 and the lower shaft body 62, effectively preventing jamming, especially when the spiral member 5 is deformed and bent, thereby preventing jamming; overcoming the jamming of the shaft caused by the rotational cooperation between the shaft and the shaft hole in the prior art.

[0053] It also includes a heat-insulating sleeve 8 , which wraps the thick-film / thin-film heating tube 3 and the terminal 4 .

[0054] As a further improvement of the present invention: Figure 6 As shown, the terminal block 4 includes an arc-shaped portion 41 with an opening, fastening plates 42 provided at both ends, and a terminal block 43 provided on a fastening plate; a connecting hole is provided on the fastening plate 42;

[0055] It also includes bolts 91 and nuts 92,

[0056] The arc-shaped portion 41 is sleeved on the thick film / thin film heating tube 3, and the bolt 91 passes through the connection hole and is screwed into the nut 92; the terminal block 43 is fixed to the fixing hole on the circuit board 2. The terminal block 43 supports the circuit board.

[0057] As a further improvement of the present invention: both ends of the rotating shaft 51 are hemispherical;

[0058] The ends of the upper shaft 72 and the lower shaft 62 are hemispherical, and there is a gap between the two ends of the rotating shaft and the upper shaft 72 and the lower shaft 62. With such a structure, the friction force is small during rotation, and the rotation speed is increased.

[0059] As a further improvement of the present invention: it also includes a thyristor 10 and a heat conducting member 11, and the heat conducting member is made of metal aluminum or copper;

[0060] The heat conducting member 11 surrounds the lower end of the thick film / thin film heating tube 3, and the thyristor 10 is fixed to the heat conducting member 11. The thyristor 10 is connected to the circuit board. The inlet water temperature is used to reduce the temperature rise of the thyristor and protect the thyristor.

[0061] As a further improvement of the present invention: Figure 3 As shown, it also includes an ultrasonic vibrator 12;

[0062] The heat conducting member 11 is provided with a cavity, and an ultrasonic vibrator 12 is provided in the cavity. The ultrasonic vibrator 12 is provided to achieve descaling of the thick film / thin film heating tube 3.

[0063] As a further improvement of the present invention: the water outlet pipe 7 is provided with a sensor mounting hole 74;

[0064] It also includes a temperature sensor, which is arranged in the sensor mounting hole and extends into the water outlet pipe 7. The outlet water temperature is used as a signal to adjust the power of the thick film / thin film heating tube 3 through the thyristor to achieve adjustable water outlet temperature.

[0065] As a further improvement of the present invention: Figure 1 、 Figure 4 、 Figure 8 As shown, it also includes a water flow sensing body 131 and a Hall sensor 132.

[0066] The water flow sensing body 131 has been disclosed in Chinese patent 202123056203.7, utility model name: a patent with a built-in water flow sensor body.

[0067] The water flow sensing body 131 is provided in the water inlet end of the water inlet pipe 6 , and the Hall sensor 132 is provided on the water inlet pipe 6 and cooperates with the water flow sensing body 131 .

[0068] The sealing sleeve 17 is provided with a flange 171 at one end and an inner angle buckle edge at the other end.

[0069] The outlet connector 63 of the water inlet pipe 6 is inserted into the sealing sleeve 17, and the end portion is engaged with the angled buckle edge 172;

[0070] The water inlet plug-in portion 71 of the water outlet pipe 7 is inserted into the sealing sleeve 17 , and the end portion is matched with the angle buckle edge; the provision of the sealing sleeve 7 improves the sealing performance with the thick film / thin film heating tube 3 .

[0071] Thick film / thin film heating tube 3 is in Chinese patent 201921077065.0, utility model name: a resistance heating tube with built-in descaling device is called resistance heating tube

[0072] Example 2

[0073] like Figure 7 、 Figure 8 、 Figure 9 As shown, an instant electric water heater comprises a housing 14, a mounting plate 15 and the instant electric water heater 1 as described above.

[0074] The top and bottom of the housing 14 are respectively provided with a top hole and a bottom hole, and the back plate is provided with a hanging hole 141. The hanging holes are provided up and down on the back plate and at least two are provided.

[0075] The hanging plate 15 is provided with two hooks 151 and fixing holes (not marked) set up above and below. When in use, the screws pass through the fixing holes and are screwed into the wall or cabinet wallboard, and the hanging plate 15 fits the wall or cabinet wallboard; such a setting is adopted for easy disassembly and assembly.

[0076] The instant electric water heater 1 is fixed in the housing 14 via a fixed seat plate, the externally threaded water outlet connector 73 and the externally threaded water inlet connector 61 extend out of the housing through the top hole and the bottom hole respectively, the hanging hole 141 and the hook 151 cooperate; the back plate of the housing 14 is in contact with the hanging seat plate 15.

[0077] The housing 14 includes a front half shell 14A and a rear half shell 14B.

[0078] The front half shell 14A includes a window provided on the front wall plate, a front fixing column seat 14A1, a front top half hole 14A2 and a front bottom half hole 14A3.

[0079] The rear half shell 14B includes the hanging hole 141 on the back plate, the rear support column seat 14B1, the rear top half hole 14B2 and the rear bottom half hole 14B3; the rear support column seat is provided with a countersunk hole, a connecting hole and a head hole;

[0080] The fixed seat plate is provided with a through hole, a seat countersunk hole and a seat plug sleeve.

[0081] The seat connector sleeve is inserted into the countersunk hole of the rear support column seat 14B1, the front fixed column seat 14A1 is inserted into the seat countersunk hole, the screws pass through the connecting holes, the fixed seat plate is screwed together with the front fixed column seat 14A1, and the screws pass through the connecting holes and are screwed together with the front fixed column seat 14A1; the front top half hole 14A2 and the front bottom half hole 14A3 form the top hole and bottom hole with the rear top half hole 14B2 and the rear bottom half hole 14B3;

[0082] The device further includes a display 16 , which is embedded in the window.

[0083] As a further improvement of the present invention: the top hole and the bottom hole are in the shape of a regular hexagon;

[0084] The water inlet pipe 6 is provided on a regular hexagonal portion adjacent to the externally threaded water inlet joint portion 61, and the water outlet pipe 7 is provided on a regular hexagonal portion adjacent to the externally threaded water outlet joint portion 73;

[0085] The regular hexagonal portion of the water inlet pipe 6 is engaged with the bottom hole, and the regular hexagonal portion of the water outlet pipe 7 is engaged with the top hole. Such a structure can prevent the water inlet pipe 6 and the water outlet pipe 7 from rotating when connected to the water inlet pipe and the water outlet pipe.

[0086] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. An instant electric water heater, characterized in that: Including circuit boards, thick film / thin film heating tubes, terminal blocks, screw parts, water inlet pipes and water outlet pipes The spiral member includes a rotating shaft and a spiral plate arranged on the rotating shaft. The water inlet pipe fitting includes an external threaded water inlet joint, a lower shaft body and lower radial ribs, a fixed seat plate and a water outlet plug-in part, and the lower shaft body extends out of the water outlet plug-in part; The water outlet pipe fitting includes a water inlet plug-in part, an upper shaft body and upper radial ribs, a fixed seat plate and an external threaded water outlet joint part, and the upper shaft body extends out of the water inlet plug-in part; The upper and lower ends of the thick film / thin film heating tube are respectively provided with terminal blocks, which are connected to the circuit board; the water outlet plug is inserted into the lower end of the thick film / thin film heating tube and is sealed, and the water inlet plug is inserted into the upper end of the thick film / thin film heating tube and is sealed; the spiral part is arranged in the thick film / thin film heating tube, and there is a gap between the spiral plate and the inner wall of the thick film / thin film heating tube, and the two ends of the rotating shaft are respectively rotated with the ends of the upper shaft body and the lower shaft body.

2. The instant electric water heater according to claim 1, characterized in that: It also includes a thermal insulation sleeve, which wraps the thick film / thin film heating tube and the terminal.

3. The instant electric water heater according to claim 1, characterized in that: The terminal comprises an arc-shaped portion with an opening, fastening plates provided at both ends, and a terminal plate provided on one fastening plate; the fastening plate is provided with a connection hole; Also includes bolts and nuts, The superior arc-shaped portion is sleeved on the thick film / thin film heating tube, the bolt passes through the connecting hole and is screwed with the nut; the wiring board is fixed to the fixing hole on the circuit board.

4. The instant electric water heater according to claim 1, characterized in that: Both ends of the rotating shaft are hemispherical; and the ends of the upper shaft body and the lower shaft body are hemispherical.

5. The instant electric water heater according to claim 1, characterized in that: It also includes a thyristor and a heat conductor. The heat conductor surrounds the lower end of the thick film / thin film heating tube, and the thyristor is fitted and fixed to the heat conductor.

6. The instant electric water heater according to claim 5, characterized in that: It also includes an ultrasonic vibrator; The heat conducting member is provided with a cavity, and the ultrasonic vibrator is arranged in the cavity.

7. The instant electric water heater according to claim 1, characterized in that: The water outlet pipe is provided with a sensor mounting hole; It also includes a temperature sensor, which is arranged in the sensor installation hole and extends into the water outlet pipe.

8. An instant electric water heater according to claim 1, 2, 3, 4, 5, 6 or 7, characterized in that: It also includes water flow sensing body and Hall sensor, The water flow sensing body is arranged in the water inlet end of the water inlet pipe, and the Hall sensor is arranged on the water inlet pipe and cooperates with the water flow sensing body.

9. An instant electric water heater, characterized in that: The instant electric water heater comprises a housing, a mounting plate and any one of claims 1 to 8. The top and bottom of the shell are respectively provided with a top hole and a bottom hole, and the back plate is provided with a hanging hole; The hanging seat plate is provided with two hooks and fixing holes arranged upper and lower; The instant electric water heater is fixed in the shell through a fixed base plate, an external thread water outlet joint part and an external thread water inlet joint part extend out of the shell through a top hole and a bottom hole respectively, and a hanging hole is matched with a hook.

10. The instant electric water heater according to claim 9, characterized in that: The housing comprises a front half shell and a rear half shell, The front half shell includes a window on the front wall, a front fixed column seat, a front top half hole and a front bottom half hole. The rear half shell includes the hanging hole, rear support column seat, rear top half hole and rear bottom half hole on the rear back plate; the rear support column seat is provided with a countersink, a connecting hole and a head hole; The fixed seat plate is provided with a through hole, a seat countersunk hole and a seat plug sleeve. The seat connector is inserted into the countersunk hole of the rear support column seat, the front fixed column seat is inserted into the seat countersunk hole, the screws pass through the connecting holes, the fixed seat plate is screwed to the front fixed column seat, and the screws pass through the connecting holes and are screwed to the front fixed column seat; the front top half hole and the front bottom half hole and the rear top half hole and the rear bottom half hole form the top hole and the bottom hole; Also includes a display, The display is integrated with the window.

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