Coffee machine with high heating efficiency

Abstract

The utility model discloses a coffee machine with high heating efficiency. The coffee machine comprises a base assembly, a water tank assembly and a water outlet seat assembly, the water tank assembly comprises a first shell, an inner container arranged in the first shell, a thick film heating disc welded to the bottom of the inner container, a temperature controller installed at the bottom of the thick film heating disc, a bottom cover arranged on the first shell and located below the inner container and a coupler male end arranged at the bottom of the bottom cover, and the thick film heating disc is provided with two conductive points. The temperature controller is provided with an electric contact in contact with the conductive point, and the temperature controller is electrically connected with the male end of the coupler; the base assembly comprises a second shell, an inner shell arranged in the second shell and a coupler female end arranged on the inner shell, the second shell is connected with the bottom cover in a buckled mode, and the coupler male end is connected with the coupler female end in an inserted mode. According to the coffee machine with the high heating efficiency, the thick film heating disc is welded to the bottom of the inner container, purified water can be directly heated, the heating efficiency is improved, and the coffee brewing time is effectively shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of coffee machines, in particular to a coffee machine with high heating efficiency. Background Art

[0002] As people's living standards improve, coffee drinks have gradually become people's daily drinks. There is a method for making coffee drinks: using coffee powder to automatically brew in a coffee machine. The coffee machine heats water to a certain temperature through a heating device, and then pours hot water onto the coffee powder to brew the coffee drink.

[0003] The patent document with the authorization announcement number CN219206569U discloses a modular mocha coffee machine, which includes a base assembly, a water tank assembly, and a water outlet assembly. The base assembly is provided with a heating plate, which can heat the water in the inner tank of the water tank assembly. The coffee machine heats water in the following way: the heating plate generates heat energy when it is energized, and the heating plate contacts the bottom of the inner tank, and transfers the heat to the inner tank by heat conduction, thereby heating the water in the inner tank. However, the heating efficiency of heating water to a certain temperature by heat transfer is low, and people need to spend a long time to brew coffee.

[0004] It can be seen that the existing technology still needs to be improved and enhanced. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a coffee machine with high heating efficiency, aiming to solve the technical problem of low heating efficiency of the coffee machine.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A coffee machine with high heating efficiency comprises a base assembly, a water tank assembly detachably arranged above the base assembly, and a water outlet seat assembly detachably arranged above the water tank assembly, wherein the water tank assembly comprises a first shell, an inner tank arranged in the first shell, a thick film heating plate welded to the bottom of the inner tank, a thermostat installed at the bottom of the thick film heating plate, a bottom cover arranged on the first shell and below the inner tank, and a male end of a coupler arranged at the bottom of the bottom cover, two conductive points are arranged on the thick film heating plate, an electrical contact contacting the conductive points is arranged on the thermostat, and the thermostat is electrically connected to the male end of the coupler; the base assembly comprises a second shell, an inner shell arranged in the second shell, and a female end of a coupler arranged on the inner shell, the second shell is snap-fittedly connected to the bottom cover, and the male end of the coupler is plugged into the female end of the coupler.

[0008] Furthermore, the temperature controller includes a box body arranged at the bottom of the thick film heating plate, two groups of spring clip groups arranged in the box body, an anti-dry burning device arranged on one group of spring clip groups, a fuse arranged on the other group of spring clip groups, and a temperature sensor arranged on the box body, the two electrical contacts are respectively located at one end of the two groups of spring clip groups, and the other end of the two groups of spring clip groups and the temperature sensor are electrically connected to the male end of the coupler.

[0009] Furthermore, a connecting column is provided at the bottom of the thick film heating plate, and a mounting portion corresponding to the position of the connecting column is provided on the box body, and the mounting portion is connected to the connecting column via a fastener.

[0010] Furthermore, the inner wall of the first shell is provided with a plurality of first mounting seats, the bottom cover is provided with second mounting seats corresponding to the positions of the first mounting seats, and the outer wall of the inner liner is provided with supporting feet, which are located between the first mounting seats and the second mounting seats.

[0011] Furthermore, the top of the inner liner extends to the outside of the first shell, and a sealing ring is provided between the inner liner and the first shell.

[0012] Furthermore, a first mounting platform extending upward is provided at the bottom of the bottom cover, and the male end of the coupler is provided on the first mounting platform; and a first drain hole is provided at the bottom of the bottom cover.

[0013] Furthermore, a plurality of standing points are provided at the bottom of the bottom cover.

[0014] Furthermore, the outer wall of the bottom cover is provided with a plurality of clamping points, and the second shell is provided with a plurality of L-shaped clamping grooves, and the clamping points are slidably connected to the L-shaped clamping grooves.

[0015] Furthermore, a plurality of third mounting seats are provided on the inner wall of the second shell, and a fourth mounting seat corresponding to the position of the third mounting seats is provided on the outer wall of the inner shell; a second drainage hole is provided at the bottom of the inner shell, and a support column abutting against the bottom of the inner shell is provided in the second shell, and a through hole coaxial with the second drainage hole is opened in the support column.

[0016] Furthermore, a second mounting platform extending upward is provided at the bottom of the inner shell, the female end of the coupler is provided on the second mounting platform, a pressure cover is connected to the female end of the coupler, and the pressure cover abuts against the bottom of the second mounting platform.

[0017] Beneficial effects: The base assembly and the water tank assembly of the coffee machine provided by the utility model are detachably connected, and the male end of the coupler located on the water tank assembly and the female end of the coupler located on the base assembly are powered on by plugging; the thick film heating plate is welded to the bottom of the inner tank, the thermostat is installed on the thick film heating plate, and the male end of the coupler is installed under the inner tank through the bottom cover, which is beneficial to the electrical connection between the thick film heating plate, the thermostat and the male end of the coupler. After the thick film heating plate is powered on, the electrical energy is converted into thermal energy, and the thermal energy directly heats the pure water in the inner tank. Compared with the existing technology, the heating efficiency is high, and the time for brewing coffee is effectively shortened. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of a coffee machine with high heating efficiency provided by the utility model.

[0019] Figure 2 This is a cross-sectional view of a coffee machine with high heating efficiency provided by the utility model.

[0020] Figure 3 This is a partial cross-sectional view of the coffee machine with high heating efficiency provided by the utility model.

[0021] Figure 4 This is a structural diagram of a water tank assembly in a coffee machine with high heating efficiency provided by the utility model.

[0022] Figure 5 This is an exploded view of a water tank assembly in a coffee machine with high heating efficiency provided by the utility model.

[0023] Figure 6 This is a structural diagram of a base assembly in a coffee machine with high heating efficiency provided by the utility model.

[0024] Description of the main component symbols: first shell 1, first mounting seat 11, inner tank 2, support leg 21, sealing ring 22, thick film heating plate 3, conductive point 31, connecting column 32, thermostat 4, electrical contact 41, box body 42, mounting part 421, spring group 43, movable spring 431, fixed spring 432, anti-dry burning device 44, fuse 45, temperature sensor 46, bottom cover 5, second mounting seat 51, first mounting platform 52, first drain hole 53, standing point 54, card point 55, coupler male end 6, second shell 7, L-shaped slot 71, third mounting seat 72, support column 73, inner shell 8, fourth mounting seat 81, second drain hole 82, second mounting platform 83, coupler female end 9, pressure cover 91, base assembly 10, water tank assembly 20, water outlet seat assembly 30, powder bin 40. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-6 The utility model provides a coffee machine with high heating efficiency, including a base assembly 10, a water tank assembly 20 detachably arranged above the base assembly 10, and a water outlet seat assembly 30 detachably arranged above the water tank assembly 20, the water tank assembly 20 includes a first shell 1, an inner tank 2 arranged in the first shell 1, a thick film heating plate 3 welded to the bottom of the inner tank 2, a thermostat 4 installed at the bottom of the thick film heating plate 3, a bottom cover 5 arranged on the first shell 1 and below the inner tank 2, and a coupler male end 6 arranged at the bottom of the bottom cover 5, two conductive points 31 are arranged on the thick film heating plate 3, and an electrical contact 41 contacting the conductive point 31 is arranged on the thermostat 4, and the thermostat 4 is electrically connected to the coupler male end 6; the base assembly 10 includes a second shell 7, an inner shell 8 arranged in the second shell 7, and a coupler female end 9 arranged on the inner shell 8, the second shell 7 is snap-fitted with the bottom cover 5, and the coupler male end 6 and the coupler female end 9 are plugged.

[0027] When in use, the water tank assembly 20 is snapped onto the base assembly 10, and the female end 9 of the coupler is plugged into the male end 6 of the coupler to achieve power supply. The inner tank 2 is filled with pure water. After the thermostat 4 is powered on, when the two electrical contacts 41 abut against the two conductive points 31, the current flows to the thick film heating disk 3. The thick film heating disk 3 is provided with a conductive circuit that can convert electrical energy into thermal energy. The thick film heating disk 3 is in direct contact with the pure water to directly heat the pure water in the inner tank 2. Compared with the prior art, when heating the same volume of pure water to the temperature for brewing coffee, the heat transfer heating method using the heating disk takes 6-10 minutes, while the direct heating method using the thick film heating disk 3 only takes 3 minutes, which greatly improves the heating efficiency and shortens the time people spend brewing coffee beverages.

[0028] It should be noted that if Figure 2 As shown, the inner tank 2 is provided with a powder bin 40 connected to the water outlet assembly 30. After the pure water in the inner tank 2 is heated, the pure water is driven to flow to the powder bin 40 by the pressure of the inner tank 2, that is, after heating, the internal pressure of the inner tank 2 becomes larger, which prompts the hot water to flow to the powder bin 40 to brew coffee powder to form coffee liquid, and prompts the coffee liquid to flow to the water outlet assembly 30. The working principle and related structure of the coffee machine of the utility model for brewing coffee are prior art, and specific reference can be made to a modular mocha coffee machine disclosed in the authorization announcement number CN219206569U.

[0029] In a preferred embodiment, see Figure 5 The temperature controller 4 includes a box body 42 disposed at the bottom of the thick film heating plate 3, two groups of spring sheet groups 43 disposed in the box body 42, an anti-dry burning device 44 disposed on one group of spring sheet groups 43, a fuse 45 disposed on the other group of spring sheet groups 43, and a temperature sensor 46 disposed on the box body 42. Two electrical contacts 41 are respectively located at one end of the two groups of spring sheet groups 43, and the other ends of the two groups of spring sheet groups 43 and the temperature sensor 46 are electrically connected to the male end 6 of the coupler. After overheating, the anti-dry burning device 44 and the fuse 45 respectively trigger the corresponding connected spring sheet groups 43 to act, so as to disconnect the power supply, thereby playing the role of dry burning protection, and the temperature sensor 46 is set to detect the temperature of the thick film heating plate 3 in real time, that is, to detect the temperature of the water in the inner tank 2, so as to achieve temperature control of the water.

[0030] Furthermore, a connecting column 32 is provided at the bottom of the thick film heating disk 3, and a mounting portion 421 corresponding to the position of the connecting column 32 is provided on the box body 42, and the mounting portion 421 is connected to the connecting column 32 through a fastener. Through the above structure, it is convenient to install the thermostat 4 on the thick film heating disk 3, the anti-dry burning device 44, the fuse 45 and the temperature sensor 46 are all in contact with the bottom of the thick film heating disk 3, and the electric contact 41 on the spring group 43 is in contact with the conductive point 31 on the thick film heating disk 3 to realize power supply, and there is no need to connect the electric contact 41 with the conductive point 31 by wire welding, which is convenient for the maintenance and replacement of the thermostat 4.

[0031] Specifically, each group of the spring sheet groups 43 includes a movable spring sheet 431 and a fixed spring sheet 432 that touch each other, the movable spring sheet 431 and the fixed spring sheet 432 are connected in series, and the touching ends between the movable spring sheet 431 and the fixed spring sheet 432 are respectively provided with a movable contact and a fixed contact, and the touching effect of the movable spring sheet 431 and the fixed spring sheet 432 is ensured by the movable contact and the fixed contact; the fixed spring sheets 432 of the two groups of spring sheet groups 43 are electrically connected to the thick film heating plate 3 through the abutment of the electrical contacts 41 and the conductive points 31, and the movable spring sheets 431 of the two groups of spring sheet groups 43 are electrically connected to the male end 6 of the coupler through wire welding, that is, they are connected to the neutral wire and the live wire. The anti-dry-burning device 44 and the fuse 45 are respectively in contact with the movable spring piece 431 on the corresponding spring piece group 43. When the inner tank 2 is dry-burned or the temperature of the thick-film heating plate 3 is too high, the anti-dry-burning device 44 and the fuse 45 are actuated to disconnect the movable spring piece 431 from the fixed spring piece 432, and the thick-film heating plate 3 is disconnected, thereby achieving the function of anti-dry-burning.

[0032] In a preferred embodiment, see Figure 3, the first shell 1 is provided with a plurality of first mounting seats 11 on the inner wall, the bottom cover 5 is provided with a second mounting seat 51 corresponding to the position of the first mounting seat 11, and the outer wall of the inner tank 2 is provided with a support leg 21, and the support leg 21 is located between the first mounting seat 11 and the second mounting seat 51. The first shell 1 is roughly formed into a square structure, the first mounting seat 11 is located at the corner position of the first shell 1, and the second mounting seat 51 is connected with the support leg 21 and the first mounting seat 11 through fasteners, so as to realize that the first shell 1, the inner tank 2 and the bottom cover 5 are fixed together, so as to facilitate the assembly of the water tank assembly 20.

[0033] Further, see Figure 3 The top of the inner liner 2 extends to the outside of the first shell 1 , and a sealing ring 22 is provided between the inner liner 2 and the first shell 1 . The sealing ring 22 is provided to increase the sealing between the inner liner 2 and the first shell 1 to prevent liquid from penetrating into the first shell 1 .

[0034] In a preferred embodiment, see Figure 2 , 3 The bottom of the bottom cover 5 is provided with a first mounting platform 52 extending upward, and the male end 6 of the coupler is provided on the first mounting platform 52. During assembly, the thermostat 4 and the male end 6 of the coupler are electrically connected by wire welding, the thermostat 4 is installed on the thick film heating plate 3, and the male end 6 of the coupler is installed on the first mounting platform 52. Finally, the bottom cover 5, the inner tank 2 and the first shell 1 are fixed by fasteners, and the assembly is simple. The bottom of the bottom cover 5 is provided with a first drainage hole 53; because the inner tank 2 and the thick film heating plate 3 are welded and fixed, once water leaks between the inner tank 2 and the thick film heating plate 3, the water flows to the bottom of the bottom cover 5, and finally flows out along the first drainage hole 53, which plays a role in protecting the thermostat 4 and the male end 6 of the coupler, and avoiding leakage and damage to electronic components.

[0035] Further, see Figure 4 The bottom of the bottom cover 5 is provided with a plurality of standing points 54. In this embodiment, the number of the standing points 54 is three. When the water tank assembly 20 is placed independently on the desktop, the standing points 54 serve as a support to ensure the cleanliness of the bottom of the bottom cover 5 and to protect the male end 6 of the coupler.

[0036] In a preferred embodiment, see Figure 4 , 6 The outer wall of the bottom cover 5 is provided with a plurality of clamping points 55, and the second shell 7 is provided with a plurality of L-shaped clamping grooves 71, and the clamping points 55 are slidably connected with the L-shaped clamping grooves 71. During assembly, the clamping points 55 slide into the vertical section of the L-shaped clamping groove 71 and rotate an angle so that the clamping points 55 enter the horizontal section of the L-shaped clamping groove 71, so as to realize the buckling connection between the water tank assembly 20 and the base assembly 10.

[0037] In a preferred embodiment, see Figure 3, the inner wall of the second shell 7 is provided with a plurality of third mounting seats 72, and the outer wall of the inner shell 8 is provided with a fourth mounting seat 81 corresponding to the position of the third mounting seat 72. The second shell 7 is roughly formed into a rectangular block structure, and the fourth mounting seat 81 is installed on the third mounting seat 72 by fasteners to achieve the installation of the inner shell 8. The bottom of the inner shell 8 is provided with a second drainage hole 82, and the second shell 7 is provided with a support column 73 abutting against the bottom of the inner shell 8. The support column 73 is provided with a through hole coaxial with the second drainage hole 82, and the through hole extends to the bottom of the second shell 7. The leaked water flows along the first drainage hole 53 to the bottom of the inner shell 8, and is discharged from the second shell 7 along the second drainage hole 82 and the through hole, so as to achieve timely drainage of water and prevent the leaked water from damaging the electronic components.

[0038] Furthermore, the bottom of the inner shell 8 is provided with a second mounting platform 83 extending upward, the coupler female end 9 is provided on the second mounting platform 83, a gland 91 is connected to the coupler female end 9, and the gland 91 abuts against the bottom of the second mounting platform 83. By providing the second mounting platform 83 and the gland 91, it is convenient to install the coupler female end 9 on the bottom of the inner shell 8, and under the action of the second mounting platform 83, the installation height of the coupler female end 9 is raised, so as to prevent the water flowing from the first drain hole 53 to the inner shell 8 from penetrating into the coupler female end 9.

[0039] It should be noted that the male end 6 of the coupler and the female end 9 of the coupler are both prior art, and their specific structures and wiring methods are not described in detail. The male end 6 of the coupler is electrically connected to the thermostat 4, and the female end 9 of the coupler is electrically connected to the circuit board of the coffee machine. When the bottom cover 5 is buckled and connected with the second shell 7, the male end 6 of the coupler and the female end 9 of the coupler are plugged in, thereby realizing power supply.

[0040] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and the utility model concept of the utility model, and all these changes or substitutions should fall within the protection scope of the utility model.

Claims

1. A coffee machine with high heating efficiency, comprising a base assembly, a water tank assembly detachably arranged above the base assembly, and a water outlet seat assembly detachably arranged above the water tank assembly, characterized in that: The water tank assembly includes a first shell, an inner tank arranged in the first shell, a thick film heating plate welded to the bottom of the inner tank, a thermostat installed at the bottom of the thick film heating plate, a bottom cover arranged on the first shell and located below the inner tank, and a male end of a coupler arranged at the bottom of the bottom cover. Two conductive points are arranged on the thick film heating plate, and electrical contacts contacting the conductive points are arranged on the thermostat. The thermostat is electrically connected to the male end of the coupler. The base assembly includes a second shell, an inner shell arranged in the second shell, and a female end of a coupler arranged on the inner shell. The second shell is snap-fitted to the bottom cover, and the male end of the coupler is plugged into the female end of the coupler.

2. The coffee machine with high heating efficiency according to claim 1, characterized in that: The temperature controller includes a box body arranged at the bottom of the thick film heating plate, two groups of spring clip groups arranged in the box body, an anti-dry burning device arranged on one group of spring clip groups, a fuse arranged on the other group of spring clip groups, and a temperature sensor arranged on the box body, two electrical contacts are respectively located at one end of the two groups of spring clip groups, and the other ends of the two groups of spring clip groups and the temperature sensor are electrically connected to the male end of the coupler.

3. The coffee machine with high heating efficiency according to claim 2, characterized in that: A connecting column is arranged at the bottom of the thick film heating plate, and a mounting portion corresponding to the position of the connecting column is arranged on the box body, and the mounting portion is connected to the connecting column through a fastener.

4. The coffee machine with high heating efficiency according to claim 1, characterized in that: The inner wall of the first shell is provided with a plurality of first mounting seats, the bottom cover is provided with second mounting seats corresponding to the positions of the first mounting seats, and the outer wall of the inner liner is provided with supporting feet, which are located between the first mounting seats and the second mounting seats.

5. The coffee machine with high heating efficiency according to claim 1, characterized in that: The top of the inner container extends to the outside of the first shell, and a sealing ring is arranged between the inner container and the first shell.

6. The coffee machine with high heating efficiency according to claim 1, characterized in that: The bottom of the bottom cover is provided with a first mounting platform extending upward, and the male end of the coupler is arranged on the first mounting platform; the bottom of the bottom cover is provided with a first drain hole.

7. The coffee machine with high heating efficiency according to claim 1, characterized in that: The bottom of the bottom cover is provided with a plurality of standing points.

8. The coffee machine with high heating efficiency according to claim 1, characterized in that: The outer wall of the bottom cover is provided with a plurality of clamping points, and the second shell is provided with a plurality of L-shaped clamping grooves, and the clamping points are slidably connected with the L-shaped clamping grooves.

9. The coffee machine with high heating efficiency according to claim 1, characterized in that: The inner wall of the second shell is provided with a plurality of third mounting seats, and the outer wall of the inner shell is provided with a fourth mounting seat corresponding to the position of the third mounting seats; the bottom of the inner shell is provided with a second drainage hole, and the second shell is provided with a support column abutting the bottom of the inner shell, and the support column is provided with a through hole coaxial with the second drainage hole.

10. The coffee machine with high heating efficiency according to claim 1, characterized in that: The bottom of the inner shell is provided with a second mounting platform extending upwards, the female end of the coupler is arranged on the second mounting platform, the female end of the coupler is connected with a pressure cover, and the pressure cover abuts against the bottom of the second mounting platform.

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