Coffee machine steam system

Abstract

The utility model discloses a coffee machine steam system which comprises a water tank, a steam generator, an electromagnetic valve, a steam pipe, a main controller and a switch, the steam generator is communicated with the water tank, a water pump is arranged between the steam generator and the water tank, the steam generator is connected with the steam pipe through a steam conveying pipe, and the electromagnetic valve is arranged on the steam conveying pipe. The electromagnetic valve controls on and off of the steam conveying pipe, the switch is arranged on the shell of the coffee machine, the main controller is electrically connected with the electromagnetic valve and the switch, a user can control on and off of steam only by controlling the switch when using the coffee machine, and operation is more convenient. The switch sends a signal to the main controller, and the main controller automatically controls the electromagnetic valve, so that the electromagnetic valve is automatically opened or closed, manual rotation is not needed to control the electric valve, and steam leakage is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to coffee machine technical field, specifically, especially, a kind of coffee machine steam system. BACKGROUND

[0002] Coffee machine usually has extraction coffee and milk bubble production function, milk bubble production is to use steam to hit milk, air is hit into liquid milk, to form fine foam, so that the volume of liquid milk is expanded into foam milk bubble.

[0003] The steam system of conventional coffee machine is to use steam valve to control the opening and closing of steam, steam valve generally includes valve body, spring, sealing ring and other components, one side of valve body is provided with steam input port, the other end is provided with handle, user can make valve body open or close by rotating handle, to make steam input into the steam passage of steam valve. In order to improve the sealing property inside valve body, usually valve body is set to need to exert certain force to rotate, also indirectly leads to more inconvenient to use. In addition, with the increase of rotation times, sealing member is extruded and rubbed, especially the force in each rotation process is different, easy to cause the gap between sealing member and valve body to increase, cause steam leakage. SUMMARY

[0004] The utility model aims at providing a kind of coffee machine steam system, to solve the technical problems that the steam system switch operation of existing coffee machine is inconvenient, and steam leakage is prone to occur.

[0005] The coffee machine steam system of the utility model can be realized by the following technical solutions:

[0006] A kind of coffee machine steam system, including water tank, steam generator, electromagnetic valve, steam pipe, main controller and switch, the steam generator is communicated with the water tank, water pump is arranged between the steam generator and the water tank, the steam generator is connected between the steam pipe by steam delivery pipe, the electromagnetic valve is arranged on the steam delivery pipe, the electromagnetic valve controls the conduction and closing of the steam delivery pipe, the switch is arranged on the shell of coffee machine, the main controller is electrically connected with the electromagnetic valve and switch respectively.

[0007] In one of the embodiments, the switch includes PCB board and button, the PCB board is arranged on the inner wall of the shell, the PCB board is electrically connected with the main controller, the PCB board is provided with tactile switch and elastic member, the elastic member is wrapped around the periphery of the tactile switch, the shell is provided with through hole, the tactile switch is opposite to the position of the through hole, the button triggers the tactile switch after one end passes through the through hole.

[0008] In one of the embodiments, the switch further comprises a bracket, the PCB is fixed on the bracket, and the bracket is provided with a plurality of supporting columns fixed on the inner wall of the shell.

[0009] In one of the embodiments, the switch further comprises a limiting ring, the limiting ring is fixed on the outer wall of the shell, and the button is movably embedded on the limiting ring.

[0010] In one of the embodiments, the button comprises a pressing part and an abutting part, the pressing part is connected with the abutting part, the pressing part is embedded on the limiting ring, the abutting part is embedded in the through hole, and the outer wall of the abutting part abuts against the elastic member.

[0011] In one of the embodiments, the limiting ring is provided with an annular cylindrical wall, the annular cylindrical wall is provided with a clamping groove, the pressing part is provided with a lug, and the lug is located in the clamping groove.

[0012] In one of the embodiments, the bracket is provided with a mounting groove, and the PCB is embedded in the mounting groove.

[0013] In one of the embodiments, the edge of the mounting groove is provided with a buckle, and one end of the PCB is buckled with the buckle.

[0014] In one of the embodiments, the shell comprises an inner shell and an outer shell, a gap is formed between the inner shell and the outer shell, the through hole is arranged on the inner shell and the outer shell, the limiting ring is embedded on the outer shell, one end of the limiting ring is fixed on the inner shell, and the PCB is arranged on the inner wall of the inner shell.

[0015] Compared with the prior art, the coffee machine steam system has the beneficial effects that: the electromagnetic valve is arranged between the steam generator and the steam pipe, the electromagnetic valve controls the conduction and closing of the steam, the switch for controlling the electromagnetic valve is arranged on the coffee machine shell, and the user only needs to control the switch to control the opening and closing of the steam during use, so that the operation is more convenient. The switch sends a signal to the main controller, and the main controller automatically controls the electromagnetic valve, so that the electromagnetic valve is automatically opened or closed, without the need for manual rotation to control the opening or closing of the valve, and steam leakage is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 is a coffee machine steam system structure schematic diagram of the utility model;

[0018] Figure 2 is with Figure 1 coffee machine structure schematic diagram of the coffee machine steam system shown in the figure;

[0019] Figure 3 is the overall structure schematic diagram of the switch in the coffee machine steam system of the utility model;

[0020] Figure 4 is Figure 3 the exploded schematic diagram of the switch in the figure;

[0021] Figure 5 is Figure 4 the support structure schematic diagram in the figure;

[0022] Figure 6 is Figure 4 the key exploded schematic diagram in the figure;

[0023] Figure 7 is Figure 2 the coffee machine cross section schematic diagram shown in the figure;

[0024] Figure 8 is Figure 7 the A part enlarged view in the figure.

[0025] Indicated in the figure: 1, water tank;2, steam generator;3, electromagnetic valve;4, main controller;5, water pump;6, switch;61, PCB board;611, light touch switch;612, elastic piece;62, key;621, pressing part;6211, lug;622, abutment part;63, support;631, support column;632, installation slot;633, buckle;64, limit ring;641, annular cylinder wall;6411, clamping groove;7, shell;71, outer shell;72, inner shell;73, through hole;8, steam pipe;9, steam delivery pipe. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantage of the utility model embodiment more clear, the technical scheme in the utility model embodiment will be described clearly and completely below in conjunction with the drawings in the utility model embodiment, obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiment. The components of the utility model embodiment described and shown in the drawing here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of embodiments of the application provided in the drawings is not intended to limit the scope of the application claimed, but merely represents selected embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the application.

[0028] Referring to Figures 1-8 The coffee machine steam system includes a water tank 1, a steam generator 2, a solenoid valve 3, a steam pipe 8, a main controller 4, and a switch 6. The steam generator 2 is in communication with the water tank 1. A water pump 5 is arranged between the steam generator 2 and the water tank 1. The water pump 5 is used to deliver water in the water tank 1 to the steam generator 2. The steam generator 2 heats the water to generate steam. The steam generator 2 is connected to the steam pipe 8 through a steam delivery pipe 9, so as to deliver the steam to the steam pipe 8. The steam pipe 8 is inserted into liquid milk, so as to whip the liquid milk into milk foam. The solenoid valve 3 is arranged on the steam delivery pipe 9. The solenoid valve 3 controls the conduction and the closing of the steam delivery pipe 9. When the solenoid valve 3 is in a closed state, the steam delivery pipe 9 is in a closed state, and the steam cannot be output from the steam pipe 8. When the solenoid valve 3 is in an open state, the steam delivery pipe 9 is in a conduction state, and the steam pipe 8 can output the steam. The switch 6 is arranged on a shell 7 of the coffee machine. The main controller 4 is electrically connected to the solenoid valve 3 and the switch 6. The switch 6 sends a signal to the main controller 4. The main controller 4 controls the opening and the closing of the solenoid valve 4 after receiving the signal. The user only needs to control the switch 6 to realize the opening or the closing of the steam. Manual rotation of the valve is not needed, and the operation is more convenient. The solenoid valve 4 is controlled automatically, so as to avoid the problem of steam leakage caused by uneven force in manual adjustment.

[0029] Referring to Figures 2-6 The switch 6 includes a PCB board 61 and a button 62. The PCB board 61 is arranged on an inner wall of the shell 7. The PCB board 61 is electrically connected to the main controller 4. The PCB board 61 is provided with a tactile switch 611 and an elastic member 612. The elastic member 612 is wrapped around the periphery of the tactile switch 611. The shell 7 is provided with a through hole 73. The tactile switch 611 is opposite to the through hole 73. One end of the button 62 passes through the through hole 73 and abuts against the tactile switch 611, so as to trigger the tactile switch 611. Then, the button 62 transmits a signal to the main controller 4. The main controller 4 sends an instruction to the solenoid valve 3 after receiving the signal. The solenoid valve 3 is opened or closed, so as to control the opening or the closing of the steam system. In the coffee machine steam system, the user only needs to press the button 62 to control the opening and the closing of the steam. After the button 62 triggers the tactile switch 611, the button 62 is rebounded by the restoring force of the elastic member 612 due to the abutment of the outer wall of the button 62 and the elastic member 612, so as to avoid the control failure caused by the continuous abutment of the button 62 and the tactile switch 611.

[0030] Further, the switch 6 further comprises a bracket 63, the PCB board 61 is fixed on the bracket 63, the bracket 63 is provided with a plurality of supporting columns 631, the supporting columns 631 are fixed on the inner wall of the shell 7, so that the PCB board 61 is not directly pasted on the inner wall of the shell 7, and a heat dissipation gap is formed between the PCB board 61 and the shell 7, which is beneficial to heat dissipation of the electronic elements on the PCB board 61.

[0031] The bracket 63 is provided with a mounting groove 632, and the PCB board 61 is embedded in the mounting groove 632. On the one hand, the gap between the PCB board 61 and the shell 7 can be further increased, and heat dissipation can be better; on the other hand, too many screws are not needed to fix the PCB board 61, and subsequent maintenance and disassembly are facilitated. The edge of the mounting groove 632 is provided with a buckle 633, one end of the PCB board 61 is buckled with the buckle 633, the PCB board 61 is inserted in the mounting groove 632, and the buckle 633 is used to fix the PCB board 61, so as to avoid that the PCB board 61 falls off from the mounting groove 632 due to vibration in the carrying process. Specifically, in the embodiment, the other end of the PCB board 61 is fixed on the bracket 63 through a screw, and one side of the bracket 63 is provided with a through hole, the through hole is located in the mounting groove 632, and heat dissipation of the PCB board 61 is more favorable.

[0032] Further, the switch 6 further comprises a limiting ring 64, the limiting ring 64 is fixed on the outer wall of the shell 7, and the key 62 is movably embedded on the limiting ring 64. It can be understood that the key 62 is not fixed together with the limiting ring 64, and the key 62 is limited by the limiting ring 64 and is fixed on the shell 7. When the user presses the pressing part 621 on the outer wall of the shell 7, the pressing part 621 is retracted towards the through hole 73, at this time, the abutting part 622 is away from the through hole 73 and abuts against the trigger switch 611, the PCB board 61 sends a signal to the main controller 4, thereby sending an instruction to control the electromagnetic valve 3, at this time, the elastic element 612 is extruded. When the user releases his hand, the restoring force of the elastic element 612 makes the abutting part 622 rebound into the through hole 73, at this time, the pressing part 621 returns to the limiting ring 64.

[0033] Please refer to Figures 4-8In the embodiment, the key 62 comprises a pressing portion 621 and an abutting portion 622, the pressing portion 621 is connected with the abutting portion 622, the pressing portion 621 is embedded on the limiting ring 64, the abutting portion 622 is arranged in the through hole 73, and the outer wall of the abutting portion 622 abuts against the elastic member 612. Specifically, one end of the elastic member 612 is fixed on the PCB 61, and the other end is clamped on the outer wall surface of the abutting portion 622, so that the abutting portion 622 is kept opposite to the trigger switch 611. Further, the limiting ring 64 is provided with an annular barrel wall 641, the annular barrel wall 641 is provided with a clamping groove 6411, the pressing portion 621 is provided with a lug 6211, the lug 6211 is located in the clamping groove 6411, so that one end of the pressing portion 621 is exposed outside, and the other end is movably embedded on the annular barrel wall 641. When the user presses the pressing portion 621, the lug 6211 slides out of the clamping groove 6411, the abutting portion 622 passes through the through hole 73 to trigger the touch switch 611, and when the user no longer applies force to the pressing portion 621, the elastic member 612 applies force in the reverse direction to make the lug 6211 return to the clamping groove 6411.

[0034] Please refer to Figures 7-8 In the embodiment, the shell 7 comprises an inner shell 72 and an outer shell 71, and a gap is formed between the inner shell 72 and the outer shell 71, which can be used to accommodate the abutting portion 622. The inner shell 72 and the outer shell 71 are both provided with the through hole 73, that is, the abutting portion 622 can pass through the two through holes in sequence. The limiting ring 64 is embedded on the outer shell 71, and one end of the limiting ring 64 is fixed on the inner shell 72, and the PCB is arranged on the inner wall of the inner shell 72. In the embodiment, the inner shell 72 and the outer shell 71 are connected in a buckling manner, and since there is a gap between the two, a part of the pressing portion 621 of the key 62 can be embedded in the gap, so that the protruding part of the pressing portion 622 relative to the outer shell 71 is avoided from being too much, so that the whole switch 6 is embedded on the outer shell 71, and the whole is more beautiful.

[0035] The technical features of the above-described embodiments can be combined arbitrarily, and in order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, it should be considered that it is within the scope of the present application.

[0036] The above-described embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A coffee machine steam system, characterized in that, The switch comprises a PCB board and a button, the PCB board is arranged on the inner wall of the shell, the PCB board is electrically connected with the main controller, the PCB board is provided with a tactile switch and an elastic element, the elastic element is wrapped around the periphery of the tactile switch, the shell is provided with a through hole, the tactile switch is opposite to the through hole, one end of the button passes through the through hole to trigger the tactile switch.

2. A steam system for a coffee maker as defined in claim 1, wherein, The switch further comprises a bracket, the PCB board is fixed on the bracket, the bracket is provided with a plurality of supporting columns, the supporting columns are fixed on the inner wall of the shell.

3. A steam system for a coffee maker as defined in claim 2, wherein, The switch further comprises a limiting ring, the limiting ring is fixed on the outer wall of the shell, the button is movably embedded on the limiting ring.

4. A steam system for a coffee maker as defined in claim 2, wherein, The button comprises a pressing part and an abutting part, the pressing part is connected with the abutting part, the pressing part is embedded on the limiting ring, the abutting part is embedded in the through hole, and the outer wall of the abutting part abuts against the elastic element.

5. A steam system for a coffee maker as defined in claim 4, wherein, The limiting ring is provided with an annular cylindrical wall, the annular cylindrical wall is provided with a clamping groove, the pressing part is provided with a lug, and the lug is located in the clamping groove.

6. A steam system for a coffee maker as defined in claim 5, wherein, The bracket is provided with a mounting groove, and the PCB board is embedded in the mounting groove.

7. A steam system for a coffee maker as defined in claim 3, wherein, The edge of the mounting groove is provided with a buckle, and one end of the PCB board is buckled with the buckle.

8. A steam system for a coffee maker as defined in claim 7, wherein, The shell comprises an inner shell and an outer shell, a gap is formed between the inner shell and the outer shell, the through hole is arranged on the inner shell and the outer shell, the limiting ring is embedded on the outer shell, one end of the limiting ring is fixed on the inner shell, and the PCB board is arranged on the inner wall of the inner shell.

9. A steam system for a coffee maker according to any one of claims 4-6, characterized in that, ​

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