Automatic power-off type coffee bean grinder based on magnetic induction switch

Abstract

The utility model discloses an automatic power-off coffee bean grinder based on a magnetic induction switch. The automatic power-off coffee bean grinder comprises a shell provided with a seat body, a main control board contained in the shell, a driving device and a bean grinding bin, wherein the driving device and the bean grinding bin are jointly and electrically connected with the main control board; an opening for exposing the grinding disc of the bean grinding bin is formed in the top of the shell; the grinding disc is detachably connected into the bean grinding bin; the bean grinding machine further comprises a bean storage bin detachably connected with the opening, and a magnetic induction switch electrically connected with the main control board is embedded in the outer wall of the bean grinding bin. When the bean storage bin and the shell are in a detached state, the magnetic induction switch induces the magnetic intensity carried by the bean storage bin, if the magnetic intensity is lower than an intensity threshold value, power supply is cut off, actions such as safe maintenance, cleaning or millstone replacement can be achieved without additionally pulling out a power line, and the bean grinding bin and the shell can be reassembled after the actions become expected actions. When the magnetic induction switch induces that the magnetic intensity is higher than a threshold value, the main control board enters a power-on state, and the whole action is safer, simpler and more convenient.

Description

Technical Field

[0001] This utility model relates to the field of coffee bean grinders, and more particularly to an automatic power-off type coffee bean grinder based on a magnetic induction switch. Background Technology

[0002] As people's lifestyles change and their quality of life improves, more and more people are beginning to accept and enjoy coffee as a beverage, and as a result, various coffee grinders for home use have begun to appear in people's lives.

[0003] In existing technology, coffee grinders generally include a bean inlet, a grinding chamber, and a base connected together. The base provides the driving force required for grinding to drive the grinding chamber, thereby transforming coffee beans into coffee powder. To taste the flavor characteristics of different types of coffee beans, the grinding discs in the grinding chamber can be either conical or flat. During daily use, after a certain period of use, it is inevitable to disassemble, replace, inspect, and clean the grinding discs. However, there is a concern about the machine starting automatically when powered on. To ensure safety, the power cord is usually unplugged before assembly and then plugged back in, which is a rather cumbersome process. Therefore, there is an urgent need for a coffee grinder with a more reasonable structure to solve the above-mentioned shortcomings. Utility Model Content

[0004] This invention addresses the safety hazards associated with disassembling and maintaining the grinding disc in existing coffee grinders when the power is on.

[0005] To achieve the above objectives, this utility model provides an automatic power-off coffee bean grinder based on a magnetic induction switch, comprising a housing with a base, a main control board, a drive device electrically connected to the main control board, and a grinding chamber; the top of the housing has an opening for exposing the grinding disc of the grinding chamber; the grinding disc is detachably connected to the grinding chamber.

[0006] It also includes a bean storage bin that is detachably connected to the opening. The outer wall of the bean grinding bin is fitted with a magnetic induction switch that is electrically connected to the main control board. The magnetic induction switch senses the magnetic strength carried by the bean storage bin and disconnects the power supply if it is lower than the strength threshold.

[0007] As an improvement of this application, the outer wall of the grinding chamber is provided with a mounting groove, and the magnetic induction switch is fixed in the mounting groove.

[0008] As an improvement of this application, the mounting groove is divided into a first groove and a second groove that are connected to each other, the second groove extending to the end of the grinding chamber to form a wiring channel; the main control board is located in the space of the base.

[0009] As an improvement of this application, the bean storage bin and the closed end of the opening are fixed with an induction magnetic ring adapted to the magnetic induction switch.

[0010] As an improvement of this application, the outer bottom of the bean storage bin is provided with a fixing ring, the inner bottom is conical and is provided with a material distribution bracket, and several mounting feet of the material distribution bracket pass through the bottom of the bean storage bin and the induction magnetic ring and are connected to the fixing ring.

[0011] As an improvement of this application, the side of the feed rack away from the grinding chamber is provided with a cone.

[0012] As an improvement of this application, the outer wall of the grinding chamber is also provided with a powder outlet pipe, and the two ends of the powder outlet pipe form an inlet and an outlet respectively.

[0013] As an improvement of this application, the powder outlet pipe is composed of a first pipe and a second pipe. One end of the first pipe is connected to the grinding chamber of the grinding chamber, and the other end is located on the outer wall of the shell and is in contact with the second pipe. The second pipe is fitted with a return structure, the outer edge of the return structure is fixedly connected to the outer wall of the shell, and the second pipe reciprocates to impact the first pipe.

[0014] As an improvement of this application, the two opposite sides of the second pipe are further provided with fixed protrusions; the recovery structure includes elastic members matching the number of fixed protrusions, one end of the elastic members is connected to the fixed protrusions, and the other end is connected to the end face of the recovery structure.

[0015] As an improvement of this application, the housing is provided with a receiving notch, and the recovery structure is located within the receiving notch so as to be flush with the surface formed by the outer shell.

[0016] The beneficial effects of this utility model are as follows: Compared with the prior art, this utility model provides an automatic power-off coffee bean grinder based on a magnetic induction switch, including a housing with a base, a main control board, a drive device electrically connected to the main control board, and a grinding chamber; the top of the housing has an opening for exposing the grinding disc of the grinding chamber; the grinding disc is detachably connected to the grinding chamber; it also includes a bean storage chamber detachably connected to the opening, and a magnetic induction switch electrically connected to the main control board is embedded in the outer wall of the grinding chamber; when the bean storage chamber is detached from the housing, the magnetic induction switch senses the magnetic strength of the bean storage chamber. If it is lower than the strength threshold, the power supply is disconnected, and safe maintenance, cleaning, or grinding disc replacement can be achieved without unplugging the power cord. After the expected action is achieved, the grinding chamber and housing can be reassembled. When the magnetic induction switch senses that the magnetic strength is higher than the threshold, the main control board enters the power-on state, making the overall operation safer and simpler. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present utility model;

[0018] Figure 2 This is an exploded view of the present invention;

[0019] Figure 3 This is an exploded schematic diagram of the soybean storage bin of this utility model;

[0020] Figure 4 This is a schematic diagram of the cooperation between the recovery structure and the second pipe of this utility model;

[0021] Figure 5 This is a schematic diagram of the receiving notch of this utility model;

[0022] Figure 6 For the present utility model Figure 5 A magnified view of a portion of region A.

[0023] The symbols for the main components are explained below:

[0024] 1. Base body;

[0025] 2. Shell; 21. Accommodation notch;

[0026] 3. Grinding chamber; 31. Magnetic induction switch; 32. Mounting slot; 33. First slot section; 34. Second slot section;

[0027] 4. Main control board;

[0028] 5. Drive motor;

[0029] 6. First pipeline;

[0030] 7. Second pipe; 71. Fixed protrusion;

[0031] 8. Rebound structure; 81. Elastic component;

[0032] 9. Bean storage bin; 91. Induction magnetic ring; 92. Fixing ring; 93. Feeding support. Detailed Implementation

[0033] To more clearly illustrate this utility model, the following description, in conjunction with the accompanying drawings, will provide a further picture.

[0034] In the following description, specific examples are given to provide a more in-depth understanding of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of them. It should be understood that the specific embodiments described are only used to explain the present invention and are not intended to limit the present invention.

[0035] It should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of the said feature, integral, step, operation, element, or component, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, or combinations thereof.

[0036] In existing coffee grinders, there are safety hazards when disassembling or maintaining the grinder while the power is on. This application provides an automatic power-off type coffee grinder based on a magnetic induction switch 31. Please refer to the appendix. Figure 1 To be continued Figure 6 The system includes a housing 2 with a base 1, a main control board 4, a drive device 5 electrically connected to the main control board 4, and a grinding chamber 3. The top of the housing 2 has an opening for exposing the grinding disc of the grinding chamber 3. The grinding disc is detachably connected to the grinding chamber 3. The system also includes a bean storage chamber 9 detachably connected to the opening. The outer wall of the grinding chamber 3 is fitted with a magnetic induction switch 31 electrically connected to the main control board 4. The magnetic induction switch 31 senses the magnetic strength carried by the bean storage chamber 9 and disconnects the power supply if the magnetic strength is lower than the strength threshold.

[0037] To better suit practical use, the aforementioned solution addresses the following: During coffee machine use, there is a need for periodic cleaning, replacement, or maintenance of the grinding disc. In this embodiment, the user only needs to remove most of the coffee beans from the coffee grinder, then unlock and separate the bean storage compartment 9 from the housing 2 (this process does not require unplugging the power cord). At this point, the grinding disc is exposed through an opening. The bean storage compartment 9 and the housing 2 can be detached using threaded, plug-in, magnetic, or snap-fit ​​connections. Since the magnetic induction switch 31 can sense changes in the magnetic strength carried by the bean storage compartment 9, when the strength is below the threshold, the magnetic induction switch 31 closes, causing the main control board 4 to enter a power-off state. This allows the user to quickly perform maintenance, cleaning, or replacement of the grinding disc. Subsequently, after the maintenance and cleaning work is completed, the bean storage compartment 3 and the housing 2 are reassembled. After reassembly, the magnetic induction switch 31 senses a magnetic strength above the preset threshold and enters a conductive state, powering on the main control board 4 to support the normal operation of the coffee grinder.

[0038] As can be seen, when the bean storage bin 9 and the shell 2 are disassembled, the magnetic induction switch 31 senses the magnetic strength of the bean storage bin 9. If it is lower than the strength threshold, the power supply is disconnected. The power cord can be unplugged to achieve safe maintenance, cleaning or replacement of the grinding disc without having to unplug it. After the expected action is achieved, the bean grinding bin 3 and the shell 2 can be reassembled. When the magnetic induction switch 31 senses that the magnetic strength is higher than the threshold, the main control board 4 enters the power-on state, making the overall operation safer and simpler.

[0039] In a specific design, the outer wall of the grinding chamber 3 is provided with a mounting groove 32, and the magnetic induction switch 31 is fixed in the mounting groove 32. By setting the mounting groove 32 to position the magnetic induction switch 31 between the grinding chamber 3 and the housing 2, it can be better protected and prevent external impacts from affecting the working stability of the magnetic induction switch 31. In a further design, the mounting groove 32 is divided into a first groove 33 and a second groove 34 that are connected to each other. The second groove 34 extends to the end of the grinding chamber 3 to form a wiring channel. The main control board 4 is located in the space of the base 1. In order to better wire the magnetic induction switch 31, the mounting groove 32 is divided into a first groove 33 and a second groove 34. The first groove 33 is specifically used to house the magnetic induction switch 31, and the second groove 34 is used to arrange the connecting wires. In a preferred design, the width of the second groove 34 is smaller than the width of the first groove 33, because the space required for the connecting wires is less and the overall robustness of the grinding chamber 3 profile can be guaranteed.

[0040] The magnetic design of the grinding chamber 3 can be achieved by using Hall elements, magnetic blocks, iron blocks, etc., or by relying on the metal parts inside the bean storage chamber 9 to provide magnetic force that matches the magnetic induction switch 31. In this embodiment, the bean storage chamber 9 and the closed end of the opening are fixed with an induction magnetic ring 91 that is compatible with the magnetic induction switch 31. By specially designing the annular induction magnetic ring 91 to cooperate with the magnetic induction switch 31, when the housing 2 and the grinding chamber 3 are connected by threads, it can be ensured that the magnetism can be sensed by the magnetic induction switch 31 at any position when rotated to a suitable assembly tightness, so as to achieve faster assembly.

[0041] In order to fix the induction magnetic ring 91, in this embodiment, the outer bottom of the bean storage bin 9 is provided with a fixing ring 92, and the inner bottom is conical and provided with a material distribution bracket 93. Several mounting feet of the material distribution bracket 93 pass through the bottom of the bean storage bin 9 and the induction magnetic ring 91 and are connected to the fixing ring 92. Through the cooperation of the fixing ring 92 and the material distribution bracket 93, the induction magnetic ring 91 is fixed at the bottom of the bean storage bin 9, so as to achieve stable cooperative operation with the magnetic induction switch 31.

[0042] In this embodiment, the side of the dispensing rack away from the grinding chamber 3 is provided with a cone. The cone design can guide the coffee beans to fall into the dispensing port formed by the mounting feet of the dispensing bracket 93 during use, reducing the occurrence of bean jamming.

[0043] In the specific design, the outer wall of the grinding chamber 3 is also equipped with a powder outlet pipe, with the two ends of the powder outlet pipe forming an inlet and an outlet respectively; after grinding, the coffee beans are transformed into coffee powder, which flows from the inlet to the outlet, allowing users to collect and use the coffee powder.

[0044] In this embodiment, the powder outlet pipe consists of a first pipe and a second pipe. One end of the first pipe is connected to the grinding chamber of the grinding chamber 3, and the other end is located on the outer wall of the shell 2 and is in contact with the second pipe. The second pipe is fitted with a return structure, and the outer edge of the return structure is fixedly connected to the outer wall of the shell 2, and the second pipe reciprocates to impact the first pipe.

[0045] In this embodiment, the two opposite sides of the second pipe are also provided with fixed protrusions; the recovery structure includes elastic elements matching the number of fixed protrusions, one end of the elastic element is connected to the fixed protrusion, and the other end is connected to the end face of the recovery structure; after the coffee grinder performs the mixing process on the coffee beans, the resulting coffee powder is transported from the first pipe 6 and the second pipe 7 into the material cup. Due to its light texture, the coffee powder tends to stick to the inside of the pipe wall; it is easy to understand that by separating the first pipe 6 and the second pipe 7, and using the recovery mechanism to make the first pipe 6 reciprocate to impact the second pipe 7, when the second pipe 7 impacts the first pipe 6, the two components vibrate, thereby causing the coffee powder to fall off the inside of the pipe wall; compared with the prior art, single The present application uses a first pipe and a powder-removing structure that impacts the second pipe 7 against the first pipe 6 in the radial direction. Instead, it directly uses a return structure 8 to achieve the impact of the second pipe 7 against the first pipe 6. This allows for a longer energy storage stroke within the same space and prevents coffee powder from accumulating on the pipe wall away from the impact point due to radial impact, thus avoiding secondary accumulation. In general, the cooperation of the first pipe 6, the second pipe 7, and the return structure 8 achieves a better powder removal effect. Regarding the specific assembly of the second pipe 7 and the return structure 8, the return structure 8 can be equipped with a spring, torsion spring, or other structures to achieve the reciprocating motion of the second pipe 7. The fit between the return structure 8 and the housing 2 can be achieved by insertion, snap-fit, or screws.

[0046] In this embodiment, the housing is provided with a receiving notch, and the recovery structure is located within the receiving notch so as to be flush with the surface formed by the outer shell; the flushness of the recovery structure 8 with the surface of the outer shell can significantly increase the harmony of the product appearance without compromising aesthetics.

[0047] The advantages of this utility model are:

[0048] When the bean storage bin and the shell are disassembled, the magnetic induction switch senses the magnetic strength of the bean storage bin. If the strength is lower than the threshold, the power supply is disconnected. This allows for safe maintenance, cleaning, or replacement of the grinding disc without having to unplug the power cord. Once the expected action is achieved, the bean storage bin and the shell can be reassembled. If the magnetic induction switch senses that the magnetic strength is higher than the threshold, the main control board is powered on, making the overall operation safer and simpler.

[0049] The above-disclosed embodiments are only a few specific examples of this utility model. However, this utility model is not limited thereto. Any variations that can be conceived by those skilled in the art should fall within the protection scope of this utility model.

Claims

1. A magnetic induction switch-based automatic power-off type coffee bean grinder, characterized by, The shell is provided with a seat body, a main control board, a driving device and a bean grinding bin, and an opening is arranged on the top of the shell for exposing the grinding disc of the bean grinding bin. The bean storage bin is detachably connected to the opening, and a magnetic induction switch is embedded on the outer wall of the bean grinding bin and electrically connected to the main control board.

2. The magnetic-induction-switch-based, automatic power-off coffee bean grinder according to claim 1, wherein, The magnetic induction switch senses the magnetic intensity carried by the bean storage bin, and if the intensity is lower than a threshold, the power supply is disconnected.

3. The magnetic-induction-switch-based, automatic power-off coffee bean grinder according to claim 2, wherein, The outer wall of the bean grinding bin is provided with a mounting groove, and the magnetic induction switch is fixed in the mounting groove.

4. The magnetic induction switch based auto-off coffee bean grinder as claimed in claim 1, wherein, The mounting groove is divided into a first groove part and a second groove part connected to each other, and the second groove part extends to the end of the bean grinding bin to form a wiring channel.

5. The magnetic induction switch based, automatic power-off coffee bean grinder according to claim 4, wherein, The main control board is located in the space of the seat body.

6. The magnetic-induction-switch-based, automatic power-off coffee bean grinder according to claim 5, wherein, The cover end of the bean storage bin is provided with an induction magnetic ring matched with the magnetic induction switch.

7. The magnetic induction switch based automatic power-off coffee bean grinder as claimed in any one of claims 1 to 6, wherein, The outer bottom of the bean storage bin is provided with a fixing ring, and the inner bottom is conical and provided with a distribution support.

8. The magnetic-induction-switch-based, automatic power-off coffee bean grinder according to claim 7, wherein, The side of the distribution support away from the bean grinding bin is provided with a tapered part.

9. The magnetic-induction-switch-based, automatic power-off coffee bean grinder according to claim 8, wherein, The outer wall of the bean grinding bin is further provided with a powder outlet pipeline, and the two ends of the powder outlet pipeline form an inlet and an outlet, respectively.

10. The magnetic induction switch based auto-off coffee bean grinder as claimed in claim 8, wherein, The powder outlet pipeline is composed of a first pipeline and a second pipeline. The relative sides of the second pipeline are further provided with fixing protrusions. The recovery structure includes elastic members matched in number with the fixing protrusions. The shell is provided with a receiving gap, and the recovery structure is located in the receiving gap to be flush with the surface of the shell.

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