A small liquid heating component

Abstract

The present invention relates to the technical field of liquid heating devices, and in particular to a small liquid heating component, comprising an outer shell, a heating tube assembly is arranged inside the outer shell, a water pump for providing water to the heating tube assembly is connected to the outer shell through a water pump fixing assembly, the heating tube assembly comprises a water inlet pipe connected to a water outlet of the water pump, a plurality of heating tubes surrounding the circumference of the water inlet pipe and having a nano-electric heating film sprayed on the surface, an upper electrode assembly is commonly connected to the upper ends of the plurality of heating tubes, and a lower electrode assembly is commonly connected to the lower ends, and a power supply unit is connected between the upper electrode assembly and the lower electrode assembly. The device not only improves the heating speed, but also can recycle heat energy, which is more energy-efficient. At the same time, the device has a reasonable structural design, and the tubes are connected through an integrally formed structure, which is simple and convenient to assemble, easy to produce, and has a longer service life.

Description

Technical Field

[0001] The invention relates to the technical field of liquid heating devices, and in particular to a small liquid heating component. Background Art

[0002] With the advancement of science and technology, electrical appliances involved in home life tend to be miniaturized. However, the smaller the size of the liquid electric heating equipment, the lower the electric heating power. As a result, small miniaturized water boilers, coffee machines, and beverage mixers heat up very slowly, seriously affecting the user experience. At the same time, the heat radiated into the narrow interior of the machine by the general electric heater can easily cause a large temperature rise inside the machine, making it difficult to select materials and causing safety hazards in use. Therefore, a mini and fast-heating liquid electric heating component is needed. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the liquid electric heating components in the prior art, such as low heating power, large volume and low electric heat conversion efficiency, and to propose a small liquid heating component.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A small liquid heating component is designed, including an outer shell, a heating tube assembly is arranged inside the outer shell, a water pump that provides water to the heating tube assembly is connected to the outer shell through a water pump fixing assembly, the heating tube assembly includes a water inlet pipe connected to a water outlet of the water pump, and a plurality of heating tubes that surround the circumference of the water inlet pipe and are sprayed with nano-electric heating films on the surface, the upper ends of the plurality of heating tubes are commonly connected to an upper electrode assembly, and the lower ends are commonly connected to a lower electrode assembly, and a power supply unit is connected between the upper electrode assembly and the lower electrode assembly.

[0006] Preferably, the water inlet pipe is a metal pipe.

[0007] Preferably, the plurality of heating tubes are respectively a first heating tube, a second heating tube, a third heating tube, and a fourth heating tube, the outer shell comprises an upper shell, an upper tube bracket, a middle shell, a lower tube bracket, and a lower shell connected in sequence, the middle shell is a metal shell and is integrally formed with the water inlet pipe, the lower shell is integrally formed with a third water tank, a water inlet, and a fourth water tank, the upper shell is integrally formed with a second water tank, a water outlet, and a first water tank, the first water tank, the second water tank, the third water tank, and the fourth water tank opening ends are respectively connected through The first water cover, the second water cover, the third water cover and the fourth water cover are sealed, the bottom end of the water inlet pipe is connected with the water inlet, the water inlet is connected with the water pump outlet through the water inlet joint, the bottom ends of the second heating tube and the third heating tube are connected with the third water tank, the bottom ends of the first heating tube and the fourth heating tube are connected with the fourth water tank, the top ends of the first heating tube and the second heating tube are connected with the second water tank, the top ends of the third heating tube and the water inlet pipe are connected with the first water tank, the top end of the fourth heating tube is connected with the water outlet, and the water outlet is connected with a water outlet joint.

[0008] Preferably, the top of the upper shell is sealed by an upper cover, and the bottom of the lower shell is sealed by a lower cover.

[0009] Preferably, a water outlet NTC mounting seat is provided on the upper shell, a water outlet NTC is fixed on the water outlet NTC mounting seat, and the water outlet NTC probe is arranged in the water outlet.

[0010] Preferably, a water inlet NTC mounting seat is provided on the lower cover, a water inlet NTC is fixed on the water inlet NTC mounting seat, and the water inlet NTC probe is arranged between the water inlet joint and the water inlet.

[0011] Preferably, the water pump fixing assembly comprises two symmetrically arranged clamping arms, the clamping arms are integrally formed with the lower tube bracket, and the water pump is clamped between the two clamping arms.

[0012] Preferably, a screw connection hole is provided on one side of the two clamping arms close to the lower tube bracket, and a screw nut is connected between the two screw connection holes.

[0013] Preferably, the free end of the clamping arm is elastic, and the inner wall of the clamping arm is provided with striped protrusions.

[0014] Preferably, a thermostat is fixed between the lower tube bracket and the upper tube bracket, the thermostat is in contact with the middle shell, and a thyristor is installed on the outer wall of the middle shell.

[0015] A small liquid heating component proposed by the present invention has the following beneficial effects: since the nanofilm has fast electric heating speed and high thermal efficiency, and the device is a miniaturized design with a small structural size, it is easy to overheat and burn out. Cold water enters the device from the middle water inlet pipe, and is then heated in turn through four heating tubes connected in series or in parallel. Since the water inlet pipe and the middle shell are made of metal material, preferably aluminum material is integrally formed, it has a good heat absorption function. The heat radiated by the nanofilm tube to the surrounding environment is absorbed by the cold water and the shell itself and then transferred to the cold water to be heated. Not only the heating speed is improved, but also the heat energy can be recycled, further improving the electric heating efficiency of the heater assembly and saving more energy. It can also ensure that the outer surface temperature of the heater is very low when working. At the same time, the structural design of the device is reasonable, and the tubes are connected through an integrally formed structure, which is simple and convenient to assemble, easy to produce and manufacture, and has a longer service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0017] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0018] Figure 3 The internal structure of the present invention is shown in FIG. Figure 1 ;

[0019] Figure 4 The internal structure of the present invention is shown in FIG. Figure 2 ;

[0020] Figure 5 It is a schematic diagram of the upper shell structure of the present invention;

[0021] Figure 6 It is a schematic diagram of the lower shell structure of the present invention;

[0022] Figure 7 It is a schematic diagram of the structure of the middle shell of the present invention;

[0023] Figure 8 It is a schematic diagram of the structure of the lower tube support of the present invention;

[0024] Fig. 9 It is a schematic diagram of the structure of the electrode assembly of the present invention.

[0025] In the figure: water pump 1, water pump fixing assembly 2, water inlet joint 3, lower cover 4, lower shell 5, lower tube bracket 6, middle shell 7, thermostat 8, upper tube bracket 9, upper shell 10, upper cover 11, water outlet joint 12, thyristor 13, water outlet NTC 14, water inlet NTC 15, first water cover 16, second water cover 17, upper electrode assembly 18, first heating tube 19, second heating tube 20, third heating tube 21, lower electrode assembly 22, fourth heating tube 23, third water cover 24, fourth water cover 25, second water trough 26, water outlet 27, first water trough 28, third water trough 29, water inlet 30, fourth water trough 31, water inlet pipe 32, screw connection hole 33, clamping arm 34. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] Reference Figure 1-8 A small liquid heating component comprises an outer shell, a heating tube assembly is arranged inside the outer shell, a water pump 1 for providing water source to the heating tube assembly is connected to the outer shell through a water pump fixing assembly 2, the heating tube assembly comprises a water inlet pipe 32 connected to the water outlet of the water pump 1, a plurality of heating tubes surrounding the water inlet pipe 32 and having a nano-electric heating film sprayed on the surface, the upper ends of the plurality of heating tubes are commonly connected to an upper electrode assembly 18, and the lower ends are commonly connected to a lower electrode assembly 22, a power supply unit is connected between the upper electrode assembly 18 and the lower electrode assembly 22, the water inlet pipe 32 is a metal tube, preferably an aluminum tube, reference Fig. 9 The electrode includes two symmetrically arranged metal sheets, each of which has a bent V-shaped opening. The heating tube is clamped in the V-shaped opening, and then the metal sheet is fastened to the heating tube by screws and nuts. The electronic components of the heating assembly are electrically connected to the PCB board, and then the PCB board is snapped onto the outer shell.

[0028] The plurality of heating tubes are respectively a first heating tube 19, a second heating tube 20, a third heating tube 21, and a fourth heating tube 23. An appropriate number of heating tubes can be set as required. The outer shell includes an upper shell 10, an upper tube bracket 9, a middle shell 7, a lower tube bracket 6, and a lower shell 5 which are connected in sequence. The upper shell 10 and the lower shell 5 are plastic parts. The PCB board is snapped on the upper shell 10 or the lower shell 5 of the outer shell. The middle shell 7 is a metal shell, preferably an aluminum shell and is integrally formed with the water inlet pipe 32. A spoiler component is provided inside the heating tube and the water inlet pipe, for example, a spiral spring is provided inside the heating tube and the water inlet pipe, and the heating effect is better under the effect of spoiler. A third water tank 29, a water inlet 30, and a fourth water tank 31 are integrally formed in the lower shell 5. A second water tank 26, a water outlet 27, and a first water tank 28 are integrally formed in the upper shell 10. The opening ends of the first water tank 28, the second water tank 26, the third water tank 29, and the fourth water tank 31 are respectively connected through the first water cover 1 6. The second water cover 17, the third water cover 24, and the fourth water cover 25 are blocked, the bottom end of the water inlet pipe 32 is connected to the water inlet 30, and the water inlet 30 is connected to the water outlet of the water pump 1 through the water inlet joint 3, the bottom ends of the second heating pipe 20 and the third heating pipe 21 are connected to the third water tank 29, the bottom ends of the first heating pipe 19 and the fourth heating pipe 23 are connected to the fourth water tank 31, the top ends of the first heating pipe 19 and the second heating pipe 20 are connected to the second water tank 26, the third heating pipe 21 and the water inlet pipe The top of the fourth heating tube 23 is connected to the water outlet 27, the water outlet 27 is connected to the water outlet joint 12, both ends of the heating tube and the water inlet pipe are covered with silicone sleeves, and are sealed with the upper and lower shells through the silicone sleeves. A thermostat 8 is fixed between the lower tube bracket 6 and the upper tube bracket 9, the thermostat 8 is in contact with the middle shell 7, and a thyristor 13 is installed on the outer wall of the middle shell 7. Two thermostats are provided, one is a resettable thermostat and the other is a non-resettable thermostat.

[0029] The heating tubes and the heating tubes and the water inlet pipes can also be connected through silicone tubes. Coil springs are provided between the silicone tubes, the heating tubes and the water inlet pipes. The setting of the springs can prevent the silicone tubes from bending and causing blockage of the water path. On the other hand, they can play a turbulent role and improve the heat exchange effect. This connection method can effectively reduce manufacturing costs.

[0030] When working, the water inlet end of the water pump 1 is connected to the water source, and the cold water is sent to the water inlet 30 through the water pump 1, and then passes through the water inlet pipe 32, the third heating pipe 21, the second heating pipe 20, the first heating pipe 19, and the fourth heating pipe 23 in sequence, and finally flows out from the water outlet joint 12. Each heating pipe adopts a method of spraying a nano-electric heating film on the outer surface of the quartz tube, and then connecting the power supply through the electrode to heat the liquid; since the nano-film electric heating has a high thermal efficiency, and the device is a miniaturized design with a small structural size, it is easy to overheat and burn. The cold water of the device is from the middle inlet The water pipe 32 enters and is then heated in turn through four heating tubes. Since the water inlet pipe 32 and the middle shell 7 are integrally formed of aluminum material, they have a good heat absorption function. The excess heat radiated by the electric heating tube to the surrounding area is absorbed by cold water and the shell itself, which not only improves the heating speed, but also can recycle heat energy, which is more energy-saving and can ensure that the outer surface temperature of the heater is very low when it is working. At the same time, the structure of the device is reasonably designed, and the tubes are connected through an integrally formed structure, which is simple and convenient to assemble, easy to produce and manufacture, and has a longer service life.

[0031] In order to facilitate the detection of water inlet and outlet temperatures, the top of the upper shell 10 is encapsulated by an upper cover 11, and the bottom of the lower shell 5 is encapsulated by a lower cover 4. A water outlet NTC mounting seat is provided on the upper shell 10, and a water outlet NTC14 is fixed on the water outlet NTC mounting seat. The water outlet NTC14 probe is arranged in the water outlet 27. A water inlet NTC mounting seat is provided on the lower cover 4, and a water inlet NTC mounting seat is fixed on the water inlet NTC mounting seat. The water inlet NTC15 probe is arranged between the water inlet joint 3 and the water inlet 30.

[0032] To facilitate the installation of the water pump 1, the water pump fixing assembly 2 includes two symmetrically arranged clamping arms 34, which are integrally formed with the lower tube bracket 6. The water pump 1 is clamped between the two clamping arms 34. Screw connecting holes 33 are provided on one side of the two clamping arms 34 close to the lower tube bracket 6. Screw nuts are connected between the two screw connecting holes 33. The free ends of the clamping arms 34 are elastic and the inner walls of the clamping arms 34 are provided with striped protrusions. The design of the screw nuts can adjust the tightness of the water pump installation and has better adaptability.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technical solution, conception, and design obtained by equivalent replacement or modification of the technical solution and inventive concept of the present invention by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention.

Claims

1. A small liquid heating assembly, comprising an outer shell, a heating tube assembly being arranged inside the outer shell, a water pump (1) for providing water to the heating tube assembly being connected to the outer shell via a water pump fixing assembly (2), characterized in that: The heating tube assembly comprises a water inlet pipe (32) connected to a water outlet of a water pump (1), a plurality of heating tubes surrounding the circumference of the water inlet pipe (32) and having a nano-electric heating film sprayed on the surface, the upper ends of the plurality of heating tubes being commonly connected to an upper electrode assembly (18), and the lower ends being commonly connected to a lower electrode assembly (22), a power supply unit being connected between the upper electrode assembly (18) and the lower electrode assembly (22), the outer shell comprising an upper shell (10) and a lower shell (5), the heating tubes comprising a first heating tube (19), a second heating tube (20), a third heating tube (21), and a fourth heating tube (23), the lower shell (5) being integrally formed with a third water tank (29), a water inlet (30), and a fourth water tank (31), the upper shell (10) being integrally formed with a second water tank ( The water inlet pipe (32) is connected to the water inlet (30), the bottom ends of the second heating pipe (20) and the third heating pipe (21) are connected to the third water tank (29), the bottom ends of the first heating pipe (19) and the fourth heating pipe (23) are connected to the fourth water tank (31), the top ends of the first heating pipe (19) and the second heating pipe (20) are connected to the second water tank (26), the top ends of the third heating pipe (21) and the water inlet pipe (32) are connected to the first water tank (28), and the opening ends of the first water tank (28), the second water tank (26), the third water tank (29) and the fourth water tank (31) are blocked by the first water cover (16), the second water cover (17), the third water cover (24) and the fourth water cover (25), respectively.

2. A small liquid heating assembly according to claim 1, characterized in that: The outer shell further comprises an upper tube bracket (9), a middle shell (7), and a lower tube bracket (6); the upper shell (10), the upper tube bracket (9), the middle shell (7), the lower tube bracket (6), and the lower shell (5) are connected together in sequence; the middle shell (7) is a metal shell and is integrally formed with the water inlet pipe (32); the water inlet (30) is connected to the water outlet of the water pump (1) via a water inlet joint (3); the top end of the fourth heating tube (23) is connected to the water outlet (27); and the water outlet (27) is connected to a water outlet joint (12).

3. A small liquid heating assembly according to claim 2, characterized in that: The top of the upper shell (10) is sealed by an upper cover (11), and the bottom of the lower shell (5) is sealed by a lower cover (4).

4. A small liquid heating assembly according to claim 3, characterized in that: A water outlet NTC mounting seat is provided on the upper shell (10), a water outlet NTC (14) is fixed on the water outlet NTC mounting seat, and a water outlet NTC (14) probe is arranged in the water outlet (27).

5. A small liquid heating assembly according to claim 4, characterized in that: A water inlet NTC mounting seat is provided on the lower cover (4), a water inlet NTC (15) is fixed on the water inlet NTC mounting seat, and the water inlet NTC (15) probe is arranged between the water inlet joint (3) and the water inlet (30).

6. A small liquid heating assembly according to claim 2, characterized in that: The water pump fixing assembly (2) comprises two symmetrically arranged clamping arms (34), the clamping arms (34) being integrally formed with the lower tube bracket (6), and the water pump (1) being clamped between the two clamping arms (34).

7. A small liquid heating assembly according to claim 6, characterized in that: A screw connection hole (33) is provided on one side of the two clamping arms (34) close to the lower tube bracket (6), and a screw nut is connected between the two screw connection holes (33).

8. A small liquid heating assembly according to claim 7, characterized in that: The free end of the clamping arm (34) is elastic, and the inner wall of the clamping arm (34) is provided with a striped protrusion.

9. A small liquid heating assembly according to claim 2, characterized in that: A temperature controller (8) is fixed between the lower tube support (6) and the upper tube support (9), the temperature controller (8) is in contact with the middle shell (7), and a thyristor (13) is installed on the outer wall of the middle shell (7).

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