Instant electric water heating device with low temperature rise of heating pipe

Abstract

An instant heating type electric water heating device with low temperature rise of a heating pipe comprises a circuit board, a thick film / thin film heating pipe, a wiring terminal, a heat exchanger, a water inlet pipe fitting and a water outlet pipe fitting, the water inlet pipe fitting comprises an inlet insertion part, an inlet external thread part and a water distribution branch pipe, and the water outlet pipe fitting comprises an outlet insertion part, an outlet external thread part and a water inlet branch pipe. The out-inserting part and the in-inserting part are respectively inserted into the upper end and the lower end of the thick film / thin film heating tube, the upper part and the lower part of the thick film / thin film heating tube are respectively provided with wiring terminals, and the wiring terminals are connected with the circuit board; one end of the heat exchanger is connected with the water distribution branch pipe, and the other end of the heat exchanger is connected with the water inlet branch pipe. The heat exchanger is arranged and surrounds the thick-film / thin-film heating pipe, so that the temperature rise of the thick-film / thin-film heating pipe is reduced, and heat energy is fully utilized.

Description

Technical Field

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

[0002] Current technology, specifically Chinese patent 201921077065.0, discloses a descaling device built into a resistance heating tube. This device includes a resistance heating tube with a heating chamber inside. The descaling device is embedded within the heating chamber, and a fixed bushing is installed at one end of the device. The device is specifically made of a spiral, with a rotating shaft at one end, and the fixed bushing is mounted on the rotating shaft. When cold water enters from the left end of the resistance heating tube, it flows along the spiral rod and rotating rod, driving them to rotate rapidly. During rotation, the spiral rod rubs against the inner wall of the heating chamber, while the rotating rod, under centrifugal force, throws the cold water onto the inner wall of the heating chamber, effectively removing scale from the inner wall of the resistance heating tube. The problem is that the outer surface of the resistance heating tube dissipates heat, causing a temperature rise. Utility Model Content

[0003] The purpose of this invention is to provide an instant electric water heater with low heating element temperature rise, characterized by a heat exchanger surrounding a thick / thin film heating element and low temperature rise of the thick / thin film heating element.

[0004] This invention is implemented as follows: an instant electric water heater with low heating element temperature rise, characterized by comprising a circuit board, a thick / thin film heating element, wiring terminals, a heat exchanger, an inlet pipe, and an outlet pipe.

[0005] The water inlet fittings include the inlet spigot, the inlet external thread, and the branch pipes.

[0006] The outlet pipe fittings include an outlet spigot, an outlet external thread, and an inlet branch pipe.

[0007] The outlet and inlet connectors are inserted into the upper and lower ends of the thick film / thin film heating tube, respectively. The upper and lower parts of the thick film / thin film heating tube are respectively provided with wiring terminals, which are connected to the circuit board. One end of the heat exchanger is connected to the water distribution branch pipe, and the other end is connected to the water inlet branch pipe. The heat exchanger surrounds the thick film / thin film heating tube.

[0008] The instant electric water heater with low heating element temperature rise is characterized by the fact that it also includes a heat insulation sleeve that wraps around the heat exchanger and wiring terminals.

[0009] The instant electric water heater with low heating element temperature rise is characterized in that: the wiring terminal includes an arc-shaped part with an opening, fastening plates at both ends, and a wiring plate on a fastening plate; the fastening plate is provided with connection holes.

[0010] It also includes bolts and nuts.

[0011] The curved part is fitted onto the thick film / thin film heating tube, and the bolt passes through the connecting hole and is screwed into the nut; the terminal block is fixed to the fixing hole on the circuit board.

[0012] The instant electric water heater with low heating element temperature rise is characterized in that: the inlet end of the outlet pipe fitting is provided with an outlet seat and an outlet shaft, and the outlet end of the inlet pipe fitting is provided with an inlet seat and an inlet shaft.

[0013] It also includes a helical rotating component, which comprises a rotating shaft and a helical plate mounted on the rotating shaft.

[0014] The spiral rotating component is located inside the thick film / thin film heating tube, and the ends of the water inlet shaft and the water outlet shaft are matched with the end of the rotating shaft.

[0015] The instant electric water heater with low heating element temperature rise is characterized by the fact that the ends of the inlet shaft, outlet shaft, and rotating shaft are spherical.

[0016] The aforementioned instant electric water heater with low heating element temperature rise is characterized by the fact that it also includes a water flow sensing body and a Hall sensor.

[0017] The main body of the water flow sensor is located inside the inlet end of 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.

[0018] The instant electric water heater with low heating element temperature rise is characterized in that the heat exchanger is made of a metal tube wound into a cylindrical shape.

[0019] This utility model discloses an instant electric water heater with low heating element temperature rise. The heat exchanger is set up and surrounds the thick film / thin film heating element, which reduces the temperature rise of the thick film / thin film heating element and makes full use of the heat energy. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of the present invention.

[0021] Figure 2 yes Figure 1 A-A view.

[0022] Figure 3 This is one of the exploded perspective views of this utility model.

[0023] Figure 4This is the second exploded perspective view of this utility model.

[0024] Figure 5 This is the third exploded perspective view of this utility model.

[0025] Figure 6 This is a perspective view of the present invention.

[0026] Figure 7 This is a perspective view of the water inlet pipe fitting of this utility model.

[0027] Figure 8 This is a perspective view of the water outlet pipe fitting of this utility model. Detailed Implementation

[0028] 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.

[0029] 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.

[0030] like Figure 1 , Figure 2 , Figure 3 As shown, an instant electric water heater with low heating element temperature rise includes a circuit board 1, a thick-film / thin-film heating element 2, a wiring terminal 3, a heat exchanger 4, an inlet pipe 5, and an outlet pipe 6.

[0031] The heat exchanger 4 is made of a metal tube wound into a cylindrical shape;

[0032] The water inlet fitting 5 includes an inlet plug 51, an inlet external thread 52, and a branch pipe 53.

[0033] The water outlet fitting 6 includes an outlet plug 61, an outlet external thread 62, and an inlet branch pipe 63.

[0034] The outlet connector 61 and the inlet connector 51 are respectively inserted into the upper and lower ends of the thick film / thin film heating tube 2 and sealed. The upper and lower parts of the thick film / thin film heating tube 2 are respectively provided with wiring terminals 3, and the wiring terminals 3 are connected to the circuit board 1. One end of the heat exchanger 4 is connected to the water distribution branch pipe 53 and the other end is connected to the water inlet branch pipe 63. The heat exchanger 4 surrounds the thick film / thin film heating tube 2.

[0035] The heat exchanger 4 absorbs the heat energy from the outer surface of the thick film / thin film heating tube 2. The water flowing out of the heat exchanger mixes with the water flowing out of the thick film / thin film heating tube 2, thereby achieving energy saving, reducing the temperature rise of the thick film / thin film heating tube 2, and extending its service life.

[0036] As a further improvement of this utility model, it also includes a heat insulation sleeve 7, which covers the heat exchanger 4 and the wiring terminals 3. The heat insulation sleeve 7 prevents the circuit board 1 from absorbing heat and extends its service life.

[0037] The terminal block 3 includes an arc-shaped portion 31 with an opening, fastening plates 32 at both ends, and a wiring plate 33 on a fastening plate; the fastening plate 32 is provided with a connection hole;

[0038] It also includes bolts and nuts.

[0039] The curved part 31 is fitted onto the thick film / thin film heating tube 2, and the bolt passes through the connecting hole and is screwed into the nut; the terminal block 33 is fixed to the fixing hole 1A on the circuit board 1.

[0040] As a further improvement of this utility model: the water outlet fitting 6 is provided with a water outlet bracket 64 and a water outlet shaft 65 in the water inlet end, and the water inlet fitting 5 is provided with a water inlet bracket 54 and a water inlet shaft 55 in the water outlet end.

[0041] It also includes a helical rotating component 8, which includes a rotating shaft 81 and a helical plate 82 disposed on the rotating shaft.

[0042] The spiral rotating component 8 is disposed inside the thick film / thin film heating tube 2 and rotates under the drive of water flow inside the thick film / thin film heating tube 2. The ends of the water inlet shaft 55 and the water outlet shaft 65 are engaged with the ends of the rotating shaft 81.

[0043] The ends of the inlet shaft, outlet shaft, and rotating shaft are spherical. This structure prevents the ITER shaft from stopping.

[0044] As a further improvement of this utility model: it also includes a water flow sensing body 91 and a Hall sensor (not shown in the figure),

[0045] The water flow sensor body is located inside the water inlet end of the water inlet pipe 5, and the Hall sensor is located on the water inlet pipe 5 and cooperates with the water flow sensor body. The cooperation between the water flow sensor body 91 and the Hall sensor is a known technology.

[0046] The present invention is further improved by including a housing 10, an operation panel 11 and a wall-mounted plate 12. The housing 10 includes a front half 101 and a rear half 102.

[0047] The operation panel 11 is located on the front half shell 101 and cooperates with the circuit board, while the mounting plate 12 and the rear half shell 102 are detachable.

[0048] 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 with low heating element temperature rise, characterized in that: Includes circuit boards, thick / thin film heating elements, terminals, heat exchangers, inlet pipes, and outlet pipes. The water inlet fittings include the inlet spigot, the inlet external thread, and the branch pipes. The outlet pipe fittings include an outlet spigot, an outlet external thread, and an inlet branch pipe. The outlet and inlet connectors are inserted into the upper and lower ends of the thick film / thin film heating tube, respectively. The upper and lower parts of the thick film / thin film heating tube are respectively provided with wiring terminals, which are connected to the circuit board. One end of the heat exchanger is connected to the water distribution branch pipe, and the other end is connected to the water inlet branch pipe. The heat exchanger surrounds the thick film / thin film heating tube.

2. The instantaneous electric water heater with low heating element temperature rise according to claim 1, characterized in that: It also includes a heat insulation jacket, which wraps around the heat exchanger and wiring terminals.

3. The instantaneous electric water heater with low heating element temperature rise according to claim 1, characterized in that: The terminal block includes an arc-shaped portion with an opening, fastening plates at both ends, and a wiring plate on one of the fastening plates; the fastening plate is provided with connection holes; It also includes bolts and nuts. The curved part is fitted onto the thick film / thin film heating tube, and the bolt passes through the connecting hole and is screwed into the nut; the terminal block is fixed to the fixing hole on the circuit board.

4. The instantaneous electric water heater with low heating element temperature rise according to claim 1, characterized in that: The water outlet fitting has a water outlet bracket and a water outlet shaft inside the water inlet end, and a water inlet bracket and a water inlet shaft inside the water outlet end. It also includes a helical rotating component, which comprises a rotating shaft and a helical plate mounted on the rotating shaft. The spiral rotating component is located inside the thick film / thin film heating tube, and the ends of the water inlet shaft and the water outlet shaft are matched with the end of the rotating shaft.

5. The instantaneous electric water heater with low heating element temperature rise according to claim 4, characterized in that: The ends of the inlet shaft, outlet shaft, and rotating shaft are spherical.

6. The instantaneous electric water heater with low heating element temperature rise 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 inlet end of 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. An instantaneous electric water heater with low heating element temperature rise according to claim 1, 2, 3, 4, 5 or 6, characterized in that: The heat exchanger is made by winding a metal tube into a cylindrical shape.

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