Integrated dual-function heater for hot drink equipment

Abstract

The utility model relates to electric heating equipment, and aims to provide an integrated dual-function heater for hot drink equipment. Comprising two aluminum casting wrapping bodies which are connected into a whole, and a first heating assembly used for producing hot water and a second heating assembly used for producing steam are arranged in each aluminum casting wrapping body. The two heating assemblies are connected to a two-position three-way valve body structure of the flow electromagnetic valve through hoses. A water inlet, a first water outlet and a second water outlet are formed in the valve body structure. Wherein the water inlet is connected with the water outlet of the first heating assembly through a pipeline, the first water outlet directly supplies hot water to the outside through a pipeline, and the second water outlet is connected with the water inlet of the second heating assembly through a pipeline. The product is compact in structure, small in occupied volume, high in heat efficiency and good in heating effect; the production and manufacturing process can be simplified, and the overall manufacturing cost of the product is greatly reduced; in the using process, the two heating assemblies mutually utilize heating waste heat, energy utilization is achieved to the maximum extent, and electric energy can be saved.

Description

Technical Field

[0001] The utility model relates to electric heating equipment, in particular to an integrated dual-function heater for hot beverage equipment. Background Art

[0002] With rising consumer spending, electric heaters are becoming increasingly popular in hot beverage processing equipment, such as coffee and tea. In addition to meeting the need for hot water, some specialty coffees also require high-temperature steam. For example, when frothing milk, high-temperature steam is required to heat and bubble the milk.

[0003] There are two main design options for providing high-temperature steam in current hot beverage equipment. The first option is to install two sets of heaters in the equipment, one to heat cold water into hot water, and the other to heat cold water into high-temperature steam. However, this requires a larger internal installation space for the equipment, and the equipment is difficult to miniaturize; the direct heating to steam method results in higher energy consumption and is also prone to scale formation inside the heater. The second option is to install a small boiler in the equipment to heat and store hot water, and use a water pump to extract hot water for further heating to produce high-temperature steam when needed. This solution also requires greater heating power, and the steam heater is also independent of the boiler, requiring additional installation space.

[0004] For these reasons, existing heaters for hot beverage devices generally have high production costs, complicated manufacturing processes, and are difficult to meet the needs of downstream manufacturers for miniaturization. Therefore, it is necessary to propose a new design solution to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide an integrated dual-function heater for hot beverage equipment.

[0006] In order to solve the above technical problems, the solution adopted by the present invention is:

[0007] Provided is an integrated dual-function heater for hot beverage equipment, comprising an electric heating tube as a heat source and a metal water pipe for passing water. Specifically, the heater comprises: a first heating assembly consisting of the first electric heating tube and the main body of the first metal water pipe, located within a first aluminum casting; a second heating assembly consisting of the second electric heating tube and the second metal water pipe, located within the second aluminum casting; the ends of the first electric heating tube and the first metal water pipe both extend out of the first aluminum casting, respectively for connecting to a power source and introducing cold water and discharging hot water; the ends of the second electric heating tube and the second metal water pipe extend out of the second aluminum casting, respectively for connecting to a power source and introducing hot water and discharging steam; the two aluminum castings are connected as an integrated structure.

[0008] The integrated dual-function heater also includes a flow solenoid valve with a two-position three-way valve body structure, on which a water inlet, a first water outlet and a second water outlet are provided; wherein, the water inlet is connected to the water outlet of the first metal water pipe through a pipeline, the first water outlet directly provides hot water to the outside through the pipeline, and the second water outlet is connected to the water inlet of the second metal water pipe through a pipeline.

[0009] As an optimized improvement solution, a water inlet joint is provided at the water outlet of the first metal water pipe, and the water inlet of the flow solenoid valve is connected to the water inlet joint through a pipeline; a steam outlet connector is provided at the end of the second metal water pipe; NTC assembly holes are respectively provided on the water inlet joint and the steam outlet connector, and the NTC component is fixedly installed in the NTC assembly hole by screwing, welding or nesting.

[0010] As an optimized improvement solution, NTC assembly holes are respectively provided on the surface of the first aluminum casting inclusion near the end of the first metal water pipe and the surface of the second aluminum casting inclusion near the end of the second metal water pipe; the NTC components are fixedly installed in the NTC assembly holes by screwing or welding.

[0011] As an optimized improvement solution, a temperature controller is provided on the surface of the first aluminum casting enclosure, and the end of the first electric heating tube and the temperature controller are connected to an external power supply through a wiring harness to form a loop; the end of the second electric heating tube is connected to an external power supply through a wire to form a loop.

[0012] As an optimized improvement solution, the second metal water pipe is in the shape of a straight pipe, and the second electric heater is spirally wrapped around the outside of the second metal water pipe; water inlet connectors and steam outlet connectors are respectively installed at both ends of the second metal water pipe, and interface ends for connecting pipelines are respectively provided on the outside of the water inlet connector and the steam outlet connector.

[0013] As an optimized improvement solution, a spoiler is installed inside the second metal water pipe.

[0014] As an optimized improvement solution, the spoiler is a fin structure having a plurality of fins arranged in parallel and at intervals, and each fin is a straight structure or a zigzag structure.

[0015] As an optimized improvement solution, a plurality of mounting brackets or mounting seats are respectively provided on the outside of the two aluminum casting enclosures for achieving fixed installation inside the hot beverage device.

[0016] As an optimized improvement solution, in the first heating assembly and the second heating assembly, the main parts of the electric heating pipe and the metal water pipe have any of the following structural forms and relative positional relationships:

[0017] (1) The main body of the electric heating tube is arranged in a spiral shape, and the main body of the metal water pipe is arranged in a spiral or return shape; the inner diameter of the spiral shape of the main body of the electric heating tube is larger than the maximum outer diameter of the main body of the metal water pipe, and the latter is nested inside the former;

[0018] (2) The main part of the metal water pipe is arranged in a spiral shape, and the main part of the electric heating pipe is arranged in a spiral or return shape; the inner diameter of the spiral shape of the main part of the metal water pipe is larger than the maximum outer diameter of the main part of the electric heating pipe, and the latter is nested inside the former;

[0019] (3) The main body of the electric heating pipe and the main body of the metal water pipe are arranged in a broken line shape and have the same size. The two are arranged adjacent to each other in the same direction.

[0020] Compared with the prior art, the technical effects of the present invention are:

[0021] 1. The integrated dual-function heater provided by this utility model is well suited to the specific application scenario of hot beverage appliances. A conventional hot water heater and steam generator are combined through an integrated die-casting process, and the switching control of a flow solenoid valve is used to achieve both hot water and steam generation. This achieves the design goals of a compact structure, small footprint, high thermal efficiency, and excellent heating effect. The emergence of this heater can promote the development of hot beverage appliances such as coffee makers and tea makers towards miniaturization, energy conservation, high efficiency, and rapid preheating.

[0022] 2. During the processing of the present invention, it is only necessary to assemble the two heating components and then perform integral die-casting, which simplifies the process of assembling the two heating components separately; therefore, it can simplify the production process and greatly reduce the overall manufacturing cost of the product.

[0023] 3. The utility model uses a flow solenoid valve with a two-position three-way valve body structure to control the supply of hot water and steam, without the need to use a boiler for storage in advance, thus avoiding scale formation.

[0024] 4. Since the two aluminum castings are connected in an integrated structure, the two heating components can utilize the residual heat after being heated by electricity during use to maximize energy utilization; thus, it can greatly save electricity.

[0025] 5. The utility model adopts a two-step method of preparing hot water first and then preparing steam, rather than directly using cold water to prepare steam, which can increase the steam production speed and avoid scale formation inside the steam heating component.

[0026] 6. By installing a spoiler inside the steam heating component, the heat transfer efficiency can be improved and scaling can be prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the explosion of the heater in the present invention;

[0028] Figure 2 This is a schematic diagram of the assembly structure of the heater in the present utility model;

[0029] Figure 3 This is a schematic diagram of the assembly structure of the heater in the present invention.

[0030] Reference numerals in the figure: 1 first aluminum casting enclosure; 2 first metal water pipe; 3 first electric heating pipe; 4 terminal block; 5 bracket; 6 wire; 7 second electric heating pipe; 8 second metal water pipe; 9 NTC assembly; 10 clamp; 11 water inlet connector; 12 hose; 13 hose; 14 flow solenoid valve; 15 terminal block; 16 wiring harness; 17 screw; 18 thermostat bracket; 19 thermostat; 20 steam outlet connector; 21 clamp; 22 NTC assembly; 23 clamp; 24 spoiler; 25 second aluminum casting enclosure. DETAILED DESCRIPTION

[0031] The specific implementation of the present utility model is described in detail below with reference to the accompanying drawings.

[0032] 1. Product structure

[0033] like Figure 1-3 As shown, the integrated dual-function heater described in the present invention includes an electric heating tube as a heat source and a metal water pipe for passing water. Specifically, it includes: a first heating assembly composed of the main parts of the first metal water pipe 2 and the first electric heating tube 3, which is located inside the first aluminum casting enclosure 1; a second heating assembly composed of the second electric heating tube 7 and the second metal water pipe 8, which is located inside the second aluminum casting enclosure 25; the ends of the first metal water pipe 2 and the first electric heating tube 3 both extend out of the first aluminum casting enclosure 1, respectively used for connecting to a power source and introducing cold water and leading out hot water; the ends of the second electric heating tube 7 and the second metal water pipe 8 extend out of the second aluminum casting enclosure 25, respectively used for connecting to a power source and introducing hot water and leading out steam. The two aluminum casting enclosures are connected as an integrated structure; in order to achieve fixed installation inside the hot beverage equipment, multiple mounting brackets or mounting seats are provided on the outside of the two aluminum casting enclosures.

[0034] The integrated dual-function heater also includes a flow solenoid valve with a two-position three-way valve body structure, on which a water inlet, a first water outlet and a second water outlet are provided; wherein, the water inlet is connected to the water outlet of the first metal water pipe 2 through a pipeline, the first water outlet directly provides hot water to the outside through the pipeline, and the second water outlet is connected to the water inlet of the second metal water pipe 8 through a pipeline.

[0035] To detect hot water and steam temperatures, a water inlet connector is installed at the outlet of the first metal water pipe 2. The water inlet of the flow solenoid valve 14 is connected to this connector via a pipeline. A steam outlet connector 20 (the steam outlet can be a quick-release connector) is installed at the end of the second metal water pipe 7. NTC assembly holes are provided on the water inlet connector and steam outlet connector 20, respectively. NTC assembly 9 is screwed into the holes, and NTC assembly 22 is nested and secured with a clamp 22. Alternatively, during the integrated die-casting process, NTC assembly holes can be provided on the surface of the first aluminum casting 1 near the end of the first metal water pipe 2 and on the surface of the second aluminum casting 25 near the end of the second metal water pipe 8. NTC assembly 9 and NTC assembly 22 are fixedly installed in the NTC assembly holes by screwing or welding. A thermostat is also provided on the surface of the first aluminum casting 2. The end of the first electric heating tube 3 and the thermostat 19 are connected to an external power supply via a wiring harness 16 to form a circuit. The end of the second electric heating tube 7 is connected to an external power source through a wire 6 to form a loop.

[0036] As an example, the second metal water pipe 8 is straight, with the second electric heating tube 7 spirally wrapped around the outside of the second metal water pipe 8. A water inlet connector 11 and a steam outlet connector 20 are installed at both ends of the second metal water pipe 8, respectively. Interfaces for connecting pipes are provided on the outsides of the water inlet connector 11 and the steam outlet connector 20. A spoiler 24 is installed inside the second metal water pipe 8. The spoiler 24 can optionally be a fin structure, comprising multiple fins arranged in parallel and alternating patterns, each fin having a straight or zigzag structure.

[0037] The specific structures of the first heating assembly and the second heating assembly can be implemented in a variety of ways. Specifically, the main parts of the electric heating pipe and the metal water pipe can be any of the following structural forms and relative positions:

[0038] (1) The main body of the electric heating tube is arranged in a spiral shape, and the main body of the metal water pipe is arranged in a spiral or return shape; the inner diameter of the spiral shape of the main body of the electric heating tube is larger than the maximum outer diameter of the main body of the metal water pipe, and the latter is nested inside the former;

[0039] (2) The main part of the metal water pipe is arranged in a spiral shape, and the main part of the electric heating pipe is arranged in a spiral or return shape; the inner diameter of the spiral shape of the main part of the metal water pipe is larger than the maximum outer diameter of the main part of the electric heating pipe, and the latter is nested inside the former;

[0040] (3) The main body of the electric heating pipe and the main body of the metal water pipe are arranged in a broken line shape and have the same size. The two are arranged adjacent to each other in the same direction.

[0041] In this example, the thermostat 16 is secured to the first aluminum casting 1 using brackets 18 and screws 17. The circuit is controlled by detecting the surface temperature of the first aluminum casting 1. To facilitate wiring during production, a terminal lug 4 is welded to the guide rod at the end of the second electric heating tube 7. The wiring harness 16 is connected to the terminal lug 8 and the thermostat 19 via plug-in terminals. The NTC assembly 9 is installed in the NTC mounting hole on the water inlet connector at the outlet of the first metal water pipe 2 to detect the outlet water temperature. The NTC assembly 22 is installed in the NTC mounting hole on the steam outlet connector 20 near the outlet of the second metal water pipe 7 and secured with a clamp 22 to detect the outlet steam temperature. The NTC assembly 9, NTC assembly 22, thermostat 19, and flow solenoid valve 14 are connected to the electrical control unit of the hot beverage appliance via wires. Valve channel switching and power regulation of the two heating components are achieved through reasonable control logic. Since this section represents conventional technical means and is not the focus of this utility model, it will not be further described.

[0042] 2. Product processing method

[0043] (1) First, the main parts of the prefabricated first electric heating tube 2 and the first metal water pipe 3 are fixed in the mold with a bracket to form a first heating assembly; then, the main parts of the prefabricated second electric heating tube 7 and the second metal water pipe 8 are fixed in the mold with a bracket to form a second heating assembly;

[0044] (2) High-temperature molten aluminum is injected into a mold and formed into an integrated structure through a die-casting process. The integrated structure includes a first aluminum casting body 1 and a second aluminum casting body 25, which are connected to each other. The first heating component and the second heating component are tightly enclosed within their respective aluminum casting bodies. Multiple mounting brackets or mounting bases are cast on the outside of the two aluminum casting bodies, and the product can be fixedly installed inside the hot beverage device using screws.

[0045] In summary, the integrated die-cast dual heating assembly in this utility model, combined with solenoid valve switching control, can meet the different heating needs and supply of hot water and steam. This product is compact, highly efficient, and enables rapid heat exchange, significantly reducing costs and meeting the needs of downstream manufacturers for product size reduction and optimized product structure.

Claims

1. An integrated dual-function heater for hot beverage equipment, comprising an electric heating tube as a heat source and a metal water pipe for passing water, characterized in that: The integrated dual-function heater specifically includes: A first heating assembly is formed by the main body of a first electric heating tube and a first metal water pipe, and is located inside the first aluminum casting enclosure. A second heating assembly is formed by a second electric heating tube and a second metal water pipe, and is located inside the second aluminum casting enclosure. The ends of the first electric heating tube and the first metal water pipe extend out of the first aluminum casting enclosure, respectively used for connecting to a power source and introducing cold water and draining hot water. The ends of the second electric heating tube and the second metal water pipe extend out of the second aluminum casting enclosure, respectively used for connecting to a power source and introducing hot water and draining steam. The two aluminum casting enclosures are connected as an integrated structure. The integrated dual-function heater also includes a flow solenoid valve with a two-position three-way valve body structure, on which a water inlet, a first water outlet and a second water outlet are provided; wherein, the water inlet is connected to the water outlet of the first metal water pipe through a pipeline, the first water outlet directly provides hot water to the outside through the pipeline, and the second water outlet is connected to the water inlet of the second metal water pipe through a pipeline.

2. The integrated dual-function heater for hot beverage equipment according to claim 1, characterized in that: A water inlet joint is provided at the water outlet of the first metal water pipe, and the water inlet of the flow solenoid valve is connected to the water inlet joint through a pipeline; a steam outlet connector is provided at the end of the second metal water pipe; NTC assembly holes are respectively provided on the water inlet joint and the steam outlet connector, and the NTC component is fixedly installed in the NTC assembly hole by screwing, welding or nesting.

3. The integrated dual-function heater for hot beverage equipment according to claim 1, characterized in that: NTC assembly holes are respectively provided on the surface of the first aluminum casting inclusion near the end of the first metal water pipe and the surface of the second aluminum casting inclusion near the end of the second metal water pipe; NTC components are fixedly installed in the NTC assembly holes by screwing or welding.

4. The integrated dual-function heater for hot beverage equipment according to claim 1, characterized in that: A temperature controller is provided on the surface of the first aluminum casting enclosure. The end of the first electric heating tube and the temperature controller are connected to an external power supply through a wiring harness to form a loop. The end of the second electric heating tube is connected to an external power supply through a wire to form a loop.

5. The integrated dual-function heater for hot beverage equipment according to claim 1, characterized in that: The second metal water pipe is in the shape of a straight pipe, and the second electric heater is spirally wound around the outside of the second metal water pipe; water inlet connectors and steam outlet connectors are respectively installed at both ends of the second metal water pipe, and interface ends for connecting pipelines are respectively provided on the outside of the water inlet connector and the steam outlet connector.

6. The integrated dual-function heater for hot beverage equipment according to claim 1, characterized in that: A spoiler is installed inside the second metal water pipe.

7. The integrated dual-function heater for hot beverage equipment according to claim 6, characterized in that: The spoiler is a fin structure having a plurality of fins arranged in parallel and at intervals, and each fin is a straight structure or a zigzag structure.

8. The integrated dual-function heater for hot beverage equipment according to claim 1, characterized in that: A plurality of mounting brackets or mounting seats are respectively provided on the outside of the two aluminum casting enclosures for achieving fixed installation inside the hot beverage device.

9. The integrated dual-function heater for hot beverage equipment according to any one of claims 1 to 8, characterized in that: In the first heating assembly and the second heating assembly, the main parts of the electric heating pipe and the metal water pipe have any of the following structural forms and relative positional relationships: (1) The main body of the electric heating tube is arranged in a spiral shape, and the main body of the metal water pipe is arranged in a spiral or return shape; the inner diameter of the spiral shape of the main body of the electric heating tube is larger than the maximum outer diameter of the main body of the metal water pipe, and the latter is nested inside the former; (2) The main part of the metal water pipe is arranged in a spiral shape, and the main part of the electric heating pipe is arranged in a spiral or return shape; the inner diameter of the spiral shape of the main part of the metal water pipe is larger than the maximum outer diameter of the main part of the electric heating pipe, and the latter is nested inside the former; (3) The main body of the electric heating pipe and the main body of the metal water pipe are arranged in a broken line shape and have the same size. The two are arranged adjacent to each other in the same direction.

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