Heating waterway system of household coffee machine

By setting up a heating water system of a cast aluminum heater and a steam generator in a household coffee machine, the problem of excessive power is solved, and the full power operation of the cast aluminum heater and the steam generator is achieved, ensuring stable coffee temperature and better steam effect.

CN223365388UActive Publication Date: 2025-09-23GUANGDONG SHUNDE FENGCUI INTELLIGENT TECH CO LTD
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Patent Information

Application Number
CN202422664135.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-31
Publication Date
2025-09-23
Estimated Expiration
2034-10-31

AI Technical Summary

Technical Problem

When existing household coffee machines make coffee and steam at the same time, the power is too high, resulting in poor steam effect, and cannot meet the needs of simultaneously producing hot water for brewing coffee and producing steam to heat milk.

Method used

A heating water system using a cast aluminum heater and a steam generator is provided with a first and a second flow channel, which are respectively used to provide hot water and preheated water and then gasify into steam, thereby achieving full power operation of the cast aluminum heater and the steam generator.

Benefits of technology

The cast aluminum heater and steam generator can work at full power at the same time, ensuring stable coffee temperature and better steam effect to meet the needs of making hot milk.

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Abstract

The utility model discloses a heating waterway system of a household coffee machine, which comprises a steam generator, a cast aluminum heater, a water pump and a water tank, and is characterized in that the cast aluminum heater comprises a first electric heating tube, a cast aluminum body, a first flow channel and a second flow channel, and the first flow channel and the second flow channel are connected with the water pump after being connected in parallel; the first flow channel provides hot water for the coffee brewing head, the second flow channel is connected with the steam generator, and water in the water tank is pumped into the second flow channel by the water pump to be preheated and then enters the steam generator to be heated and gasified into steam. Through secondary heating, the amount of finally prepared steam is more sufficient, the requirement for steam for making hot milk can be met, and a device does not need to be additionally arranged for heating the steam. The steam generator and the cast aluminum heater can work at full power at the same time, it can be guaranteed that the coffee temperature is stable, and the steam effect is better.
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Description

Technical Field

[0001] The utility model relates to the technical field of coffee machines, in particular to a heating water channel system of a household coffee machine. Background Art

[0002] When using a coffee machine to make milk coffee, water needs to be heated to generate steam, which is used to make hot milk or hot milk froth. Currently, home coffee machines on the market often use three boilers: one for coffee and two for steam. Using all three boilers simultaneously results in excessive power consumption, so only the coffee boiler can operate at full power, while the two steam boilers can only operate at partial power. This results in poor steam quality and cannot meet the needs of simultaneously producing hot water for brewing coffee and steam for heating milk. Utility Model Content

[0003] The purpose of the utility model is to provide a heating water system for a household coffee machine, which can meet the requirements of the cast aluminum heater and the steam generator working at full power at the same time, solve the problem of excessive power consumption caused by brewing coffee and making steam at the same time, and overcome the shortcomings of the existing technology.

[0004] The technical solution of the present utility model is to provide a heating water system for a household coffee machine, comprising a steam generator, a cast aluminum heater, a water pump, and a water tank. The cast aluminum heater is characterized in that the cast aluminum heater comprises a first electric heating tube, a cast aluminum body, a first flow channel, and a second flow channel. The first and second flow channels are connected in parallel to the water pump. The first flow channel provides hot water to the coffee brewing head, and the second flow channel is connected to the steam generator. Water in the water tank is pumped into the second flow channel by the water pump for preheating before entering the steam generator for heating and vaporization into steam.

[0005] Furthermore, the steam generator includes a front cover, a bottom cover, and a second electric heating tube, and the second electric heating tube is die-cast together with the front cover or the bottom cover.

[0006] Furthermore, spiral grooves are respectively provided on the relative contact surfaces of the front cover and the bottom cover of the steam generator. After the front cover and the bottom cover are combined, the spiral grooves of the front cover and the bottom cover are butted together to form a third flow channel.

[0007] Furthermore, spiral grooves are respectively provided on the relative contact surfaces of the front cover and the bottom cover of the steam generator. After the front cover and the bottom cover are combined, the spiral grooves of the front cover and the bottom cover are butted together to form a third flow channel.

[0008] Furthermore, the third flow channel is a spiral structure.

[0009] Furthermore, the first flow channel and the second flow channel are water pipe tubes coiled into a cylindrical shape, the first electric heater is an electric heating tube coiled into a cylindrical shape, and the electric heating tube of the first electric heater is placed between the first flow channel and the second flow channel.

[0010] This utility model has the following beneficial effects: Two sets of flow channels are provided in the cast aluminum heater. The first channel provides hot water to the coffee brewing head, while the second channel connects to the steam generator. Water from the water tank is pumped into the second channel by a water pump for preheating before entering the steam generator for heating and vaporization into steam. This secondary heating ensures a more sufficient amount of steam, meeting the steam requirements for hot milk production without the need for additional steam heating equipment. In this invention, the steam generator and cast aluminum heater can operate simultaneously at full power, ensuring a stable coffee temperature and achieving a better steaming effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the three-dimensional structure of the heating water system of the household coffee machine of the present invention.

[0012] Figure 2 This is a schematic diagram of the pipes in the cast aluminum heater of the heating water system of the household coffee machine described in the present invention.

[0013] Figure 3 Schematic diagram of the relative contact surfaces of the front cover and bottom cover of the steam generator of the heating water system of the household coffee machine of the present invention

[0014] in, Figure 1-Figure 3 The corresponding relationship between the reference numerals and component names is as follows:

[0015] 1 cast aluminum heater, 2 steam generator, 3 second flow channel water inlet, 4 first flow channel water outlet, 5 second flow channel water outlet, 6 first flow channel water inlet, 7 Teflon tube, 8 third flow channel inlet, 9 third flow channel outlet, 10 first electric heating tube, 11 second electric heating tube, 12 third flow channel, 13 bottom cover, 14 front cover, 15 second flow channel, 16 first flow channel. DETAILED DESCRIPTION

[0016] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0017] The components of the embodiments of the present application generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application.

[0018] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0019] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0021] Refer to the following Figure 1-Figure 3 A heating water system of a household coffee machine according to some embodiments of the present application is described.

[0022] A heating water system for a household coffee machine comprises a steam generator 2, a cast aluminum heater 1, a water pump and a water tank.

[0023] The cast aluminum heater 1 includes a first heating tube 10, a first flow channel 16, a second flow channel 15, and the first electric heating tube 10. The first electric heating tube 10 in the cast aluminum heater 1 is cast together with two sets of water pipes. The heating tube 10 transfers heat to the water in the two sets of pipes, raising the water temperature to the required level. The water in the second flow channel is preheated by the heating tube 10 before entering the steam generator 2 to be heated into steam.

[0024] The steam generator 2 includes a second heating tube 1, a front cover 14, a bottom cover 13, and a third flow channel 12. The second flow channel outlet 5 of the cast aluminum heater 1 is connected to the third flow channel inlet 8 via a Teflon tube 7. Steam preheated by the first heating tube 10 flows through the Teflon tube 7 into the third flow channel 12 of the steam generator 2. The third flow channel 12 is formed by the spiral grooves on the front cover 14 and bottom cover 13 of the steam generator 2. The second heating tube 11 is die-cast with the water flow channel in the steam generator 2. The heating tube transfers heat to the water in the tube, vaporizing it as completely as possible. The steam from the third flow channel outlet 8 can be used to make hot milk or hot milk froth.

[0025] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heating water system for a household coffee machine, comprising a steam generator, a cast aluminum heater, a water pump and a water tank, characterized in that: The cast aluminum heater includes a first electric heating tube, a cast aluminum body, a first flow channel and a second flow channel. The first flow channel and the second flow channel are connected in parallel to the water pump. The first flow channel provides hot water to the coffee brewing head, and the second flow channel is connected to the steam generator. The water in the water tank is pumped into the second flow channel by the water pump for preheating, and then enters the steam generator for heating and vaporization into steam.

2. The heating water system of a household coffee machine according to claim 1, characterized in that: The steam generator comprises a front cover, a bottom cover, and a second electric heating tube, wherein the second electric heating tube is die-casted with the front cover or the bottom cover.

3. The heating water system of a household coffee machine according to claim 2, characterized in that: The front cover and the bottom cover of the steam generator are respectively provided with spiral grooves on their relative contact surfaces. After the front cover and the bottom cover are combined, the spiral grooves of the front cover and the bottom cover are butted together to form a third flow channel.

4. The heating water system of a household coffee machine according to claim 3, characterized in that: The third flow channel is a spiral structure.

5. A heating water system for a household coffee machine according to any one of claims 1 to 4, characterized in that: The first flow channel and the second flow channel are water pipe tubes wound into a cylindrical shape, the first electric heater is an electric heating tube wound into a cylindrical shape, and the electric heating tube of the first electric heater is placed between the first flow channel and the second flow channel.