Portable coffee machine with segmented heating

Abstract

The present invention relates to the technical field of coffee machines, and in particular to a segmented heating portable coffee machine. The coffee machine comprises a coffee machine body, a water pump is arranged inside the coffee machine body, and the characteristics are as follows: a primary heating device is arranged at the water inlet end of the water pump, a secondary heating device is arranged at the water outlet end of the water pump, and the water after secondary heating is injected into the brewing component. Due to the segmented heating, that is, the water in the water tank is heated to a preset temperature before pressurization, when brewing coffee, the high-pressure water pump injects the preheated water into a sealed cavity and heats it again to a temperature suitable for brewing coffee. This not only reduces the temperature of the water flowing into the water pump and increases the working life of the water pump, but also heats the water pump while it is working to brew coffee, which saves the time of the entire process of making coffee and improves the user experience.

Description

Technical Field

[0001] The invention relates to the technical field of coffee machines, and in particular to a segmented heating portable coffee machine. Background Art

[0002] With the popularity of coffee machines, portable coffee machines are becoming more and more popular in the market because of their compactness and portability. Currently, various portable coffee machines are available on the market, but they still have the following disadvantages: existing portable coffee machines on the market usually use a single heating module to heat the water in the water tank. Due to the limited volume, the heating power is relatively small and the heating time is long, which affects the user experience. Summary of the invention

[0003] The object of the present invention is to overcome the deficiencies of the above-mentioned technology and to provide a segmented heating portable coffee machine.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a segmented heating portable coffee machine, a coffee machine body, a water pump is arranged inside the coffee machine body, a primary heating device is arranged at the water inlet end of the water pump, a secondary heating device is arranged at the water outlet end of the water pump, the water inlet end of the secondary heating device is connected to the water outlet end of the water pump, and the water outlet end of the secondary heating device is connected to the brewing component.

[0005] Preferably, the secondary heating device is composed of a heating connecting tube, a heating rod and a heating cylinder. The heating cylinder is a sealed cavity with a water inlet and a water outlet at the bottom. The heating rod is fixed at the center of the heating cylinder, and the heating cylinder is fixed in the cavity of the heating connecting tube.

[0006] Preferably, the coffee machine body consists of an upper body, a lower body, a brewing assembly and a coffee cup, and the secondary heating device is installed in the lower body.

[0007] Preferably, the upper body includes a cup cover, a water tank shell, a stainless steel water tank, a heating plate, a power supply PCB board, a power supply board bracket and an upper sealing plate. A heating plate is provided at the bottom of the stainless steel water tank, and the heating plate is provided with a water tank outlet conduit. The heating plate is connected to the upper sealing plate through studs and fixed together in the cavity of the water tank shell. The power supply PCB board is fixed on the power supply board bracket and is arranged between the heating plate and the upper sealing plate. A power socket is provided on the power supply PCB board near the water tank shell, and power is supplied by connecting the conductive spring sheet welded on the power supply PCB board to the heating plate.

[0008] Preferably, the lower body comprises an electromechanical housing, a water pump, a secondary heating device, a control PCB board, a base and a lower sealing disk; a screw hole is provided at the upper end of the electromechanical housing, which is connected to the stud of the upper sealing disk by screws; the water pump is fixed in an independent cavity in the electromechanical housing, the water inlet of the water pump is sealed and connected to the water outlet pipe of the stainless steel water tank, the water outlet of the water pump is connected to the water inlet of the heating connecting pipe, the secondary heating device and the control PCB board are jointly installed and fixed on the base, and a water inlet chamber and a water outlet chamber are provided on the lower end surface of the base, wherein the water inlet chamber is respectively connected to the water outlet of the heating connecting pipe and the water inlet hole at the bottom of the heating cylinder, and the water outlet chamber is connected to the water outlet of the heating cylinder and the water outlet pipe of the sealing disk.

[0009] Preferably, the outer rings of the water outlet cavity and the water inlet cavity on the lower end surface of the base are respectively provided with sealing rings, and the base is fixedly connected to the lower sealing disk by screws, and the water outlet of the lower sealing disk is connected to the brewing component.

[0010] Preferably, the brewing component includes an upper cover of a raw material seat and a raw material seat, and the upper cover of the raw material seat is connected to the raw material seat by threads to form a brewing component. A water inlet of the upper cover of the raw material seat is provided in the center of the upper cover of the raw material seat. When brewing coffee, the pressurized and secondary heated hot water enters the inner cavity of the brewing component through the water outlet pipe of the lower sealing plate, infiltrates and extracts the coffee, and then flows into the coffee cup through the central water outlet hole of the raw material seat.

[0011] Preferably, the coffee cup is detachably mounted below the brewing assembly and detachably mounted on the upper body, and the upper edge of the coffee cup presses against the lower sealing plate to support the entire coffee machine.

[0012] Preferably, the brewing assembly is detachable and can be stored in the water tank.

[0013] The beneficial effects of the present invention are as follows: due to the segmented heating, that is, the water in the water tank is heated to a preset temperature before pressurization, when brewing coffee, the high-pressure water pump injects the preheated water into a sealed cavity and heats it again to a temperature suitable for brewing coffee. This not only reduces the temperature of water flowing into the water pump and increases the working life of the water pump, but also heats the water pump while it is working to brew coffee, which saves time in the entire process of making coffee and improves the user experience.

[0014] The water pump is arranged in a separate sealed cavity, so even when the water pump leaks, no water will splash onto the circuit board to cause a short circuit and thus cause use safety hazards.

[0015] Due to the unique structural design, the brewing component is placed in the upper water tank in the storage state, and the coffee cup used to hold coffee is placed outside the water tank at the upper end of the machine. This maximizes the volume utilization rate and makes the coffee machine smallest in the storage state, making it easy to carry and transport. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional view of one direction of the present invention;

[0017] Figure 2 It is a cross-sectional view in another direction of the present invention;

[0018] Figure 3 It is a cross-sectional view in the third direction of the present invention;

[0019] Figure 4 It is a schematic diagram of the lower body in the present invention;

[0020] Figure 5 It is a schematic diagram of the lower body in the present invention;

[0021] Figure 6 It is a cross-sectional view of the interior of the lower body in one direction of the present invention;

[0022] Figure 7 It is a cross-sectional view of the interior of the lower body in another direction of the present invention;

[0023] Figure 8 It is a cross-sectional view of the interior of the lower body in the present invention in the third direction;

[0024] Fig. 9 It is a storage state diagram of the present invention;

[0025] Fig.10 It is a front view of the present invention;

[0026] Fig.11 It is a rear view of the present invention. DETAILED DESCRIPTION

[0027] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between one device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0028] like Figure 1-Figure 7As shown, a segmented heating portable coffee machine is composed of an upper body, a lower body, a brewing component and a coffee cup from top to bottom.

[0029] The upper body is composed of a cup cover 1, a water tank shell 2, a stainless steel water tank 3, a heating plate 4, a power supply board bracket 7, a power supply PCB board 9 and an upper sealing plate 10. The upper outer ring of the stainless steel water tank 3 is provided with a thread and connected to the upper cup cover 1. The stainless steel water tank 3 is installed into the water tank shell 2 from top to bottom, and a sealing ring 33 is provided on the upper edge to seal with the water tank shell 2.

[0030] A heating plate 4 is provided at the bottom of the stainless steel water tank, and the heating plate is welded to the bottom of the stainless steel water tank 3. The heating plate is provided with a water tank outlet conduit 5, and three studs 8 are welded thereto, and the heating plate is connected and fixed to the cavity of the water tank shell through the studs and the upper sealing plate 10. The power supply PCB board 9 is fixed on the power supply board bracket 7, and is arranged between the heating plate and the upper sealing plate. The power supply PCB board 9 is provided with a power socket 21 near the water tank shell, and the power supply is connected to the heating plate through the conductive spring 6 welded on the power supply PCB board.

[0031] The lower body is mainly composed of an electromechanical housing 11, a water pump 12, a secondary heating device, a control PCB board 22, a base 16 and a lower sealing disk 17. The upper end of the electromechanical housing 11 is provided with four screw holes, which are connected to the studs 41 of the upper sealing disk 10 by screws.

[0032] Since the water pump of portable coffee machines currently on the market is usually set in the same cavity as the control circuit board, when the water pump fails or leaks under high temperature and high pressure, it will cause a short circuit in the circuit board, thus creating a safety hazard. In this device, the water pump 12 is fixed in an independent cavity in the electromechanical housing. After installation, it is located on the upper end surface of the electromechanical housing. The end surface is provided with a sealing ring 36, which is sealed after being fixed with the upper sealing disk 10. The water pump is set in a separate sealed cavity, so even if the water pump leaks, water will not splash onto the circuit board to cause a short circuit and thus cause use safety.

[0033] The secondary heating device is composed of a heating connecting pipe 13, a heating rod 14 and a heating cylinder 15. The heating cylinder 15 is a sealed cavity, with a cavity 23 for placing the heating rod welded in the center. The bottom of the heating cylinder is provided with a heating cylinder water inlet 27 and a heating cylinder water outlet 28. It is installed and fixed in the cavity of the heating connecting pipe 13 to form a secondary heating device, and is fixedly installed on the base 16. The water outlet of the water pump is connected to the water inlet of the heating cylinder of the secondary heating device through the heating connecting pipe, and the water outlet of the heating cylinder of the secondary heating device is connected to the water outlet pipe of the lower sealing plate, and finally enters the cavity of the brewing component to extract coffee.

[0034] The water inlet 25 of the water pump is sealedly connected to the water tank water outlet conduit 5 of the upper body, and the water outlet 26 of the water pump is connected to the water inlet 41 of the heating connecting pipe.

[0035] The lower end surface of the base is provided with a water inlet chamber 30 and a water outlet chamber 31. The water inlet chamber is respectively connected to the water outlet 42 of the heating connecting pipe and the heating cylinder water inlet hole 27 at the bottom of the heating cylinder. The water outlet chamber 31 is connected to the heating cylinder water outlet 28 and the lower sealing plate water outlet pipe 29 of the lower sealing plate. A wire hole 32 is also provided on the base.

[0036] A sealing ring 38 is provided on the water outlet cavity 31 of the lower section of the base, a sealing ring 39 is provided on the outer ring of the water inlet cavity 30, and the base is fixedly connected to the sealing disk by screws.

[0037] A lower sealing plate 17 is provided below the base. The lower sealing plate 17 is provided with four screw holes and is fixed to four studs in the electromechanical housing 11 by screws.

[0038] The brewing assembly is composed of a raw material seat upper cover 18 and a raw material seat 19, and the raw material seat upper cover is connected to the raw material seat by threads to form a brewing assembly.

[0039] The sealing plate water outlet pipe 29 is connected to the upper cover 18 of the raw material seat of the brewing component.

[0040] A water inlet 24 is provided in the center of the raw material seat upper cover. When brewing coffee, pressurized and secondary heated hot water passes through the water outlet conduit of the lower sealing disk 17 and enters the inner cavity of the raw material seat 19 to infiltrate and extract the coffee.

[0041] Marks 33 to 40 in the figure are all sealing rings.

[0042] The coffee cup 20 is installed below the brewing assembly, and the upper edge of the coffee cup presses against the skirt of the lower sealing plate 17 to support the entire coffee machine. In the storage state, the brewing assembly is placed in the upper water tank, and the coffee cup used to hold coffee is placed outside the water tank at the upper end of the machine, which maximizes the volume utilization rate and minimizes the volume of the coffee machine in the storage state, making it convenient to carry and transport.

[0043] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A segmented heating portable coffee machine, comprising a coffee machine body, wherein a water pump is provided inside the coffee machine body, and characterized in that: The water inlet of the water pump is provided with a primary heating device, and the water outlet of the water pump is provided with a secondary heating device, and the water after secondary heating is injected into the brewing component; The secondary heating device is composed of a heating connecting pipe, a heating rod and a heating cylinder. The heating cylinder is a sealed cavity with a water inlet and a water outlet at the bottom. The heating rod is fixed inside the heating cylinder, and the heating cylinder is fixed at one end of the water pump outlet. The coffee machine body is composed of an upper body, a lower body, a brewing assembly and a coffee cup, and the secondary heating device is installed in the lower body; The upper body includes a cup cover, a water tank shell, a stainless steel water tank, a heating plate, a power supply PCB board, a power supply board bracket and an upper sealing plate. The bottom of the stainless steel water tank is provided with a heating plate, and the heating plate is provided with a water tank water outlet conduit. The heating plate is connected to the upper sealing plate through studs and is fixed in the cavity of the water tank shell. The power supply PCB board is fixed on the power supply board bracket and is arranged between the heating plate and the upper sealing plate. The power supply PCB board is provided with a power socket near the water tank shell, and is connected to the heating plate for power supply through a conductive spring welded on the power supply PCB board; The lower body includes an electromechanical housing, a water pump, a secondary heating device, a control PCB board, a base and a lower sealing disk; a screw hole is provided at the upper end of the electromechanical housing, which is connected to the stud of the upper sealing disk by screws; the water pump is fixed in an independent cavity in the electromechanical housing, the water inlet of the water pump is sealed and connected to the water outlet pipe of the stainless steel water tank, the water outlet of the water pump is connected to the water inlet of the heating connecting pipe, the secondary heating device and the control PCB board are jointly installed and fixed on the base, and the lower end surface of the base is provided with a water inlet chamber and a water outlet chamber, wherein the water inlet chamber is respectively connected to the water outlet of the heating connecting pipe and the water inlet hole at the bottom of the heating cylinder, and the water outlet chamber is connected to the water outlet of the heating cylinder and the water outlet pipe of the sealing disk.

2. The segmented heating portable coffee machine according to claim 1, characterized in that: The outer rings of the water outlet cavity and the water inlet cavity on the lower end surface of the base are respectively provided with sealing rings, and the base is fixedly connected to the lower sealing plate by screws, and the water outlet of the lower sealing plate is connected to the brewing component.

3. The segmented heating portable coffee machine according to claim 2, characterized in that: The brewing component includes an upper cover of a raw material seat and a raw material seat. The upper cover of the raw material seat is connected to the raw material seat by threads to form a brewing component. A water inlet is provided in the center of the upper cover of the raw material seat. When brewing coffee, pressurized and secondary heated hot water passes through the water outlet pipe of the lower sealing plate and enters the inner cavity of the brewing component to infiltrate and extract the coffee.

4. The segmented heating portable coffee machine according to claim 3, characterized in that: The coffee cup is detachably mounted below the brewing assembly and detachably mounted on the upper body, and the upper edge of the coffee cup presses against the lower sealing plate to support the entire coffee machine.

5. The segmented heating portable coffee machine according to claim 3, characterized in that: The brewing component can be detachably stored in the water tank.

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