Coffee grinding device

Abstract

The utility model belongs to the field of coffee machines, and particularly relates to a coffee grinding device. The plasma grinding device comprises a grinding cavity, a powder outlet cavity and a plasma generator, the plasma generator comprises a plasma generator electrode, an inlet of the powder outlet cavity is communicated with an outlet of the grinding cavity, the powder outlet cavity comprises a powder outlet channel, and the powder outlet channel extends downwards from the inlet of the powder outlet cavity. The plasma generating cavity is located above the powder outlet channel and communicated with the powder outlet channel, and at least part of the plasma generator electrode extends into the plasma generating cavity. After the technical scheme is adopted, the plasma generating cavity is arranged above the coffee powder outlet channel, plasmas can be fully generated, an electrode of the plasma generator extends into the generating cavity, and the electrode of the plasma generator and a channel through which coffee powder passes are staggered, so that the coffee powder is prevented from polluting and covering the electrode; plasma generated by the plasma generation cavity located above the coffee powder channel can be fully mixed with coffee powder passing through the coffee powder channel, static electricity is eliminated, and the coffee powder cannot adhere to the inner wall of the powder outlet cavity.

Description

Technical Field

[0001] This utility model belongs to the field of coffee machines, specifically relating to a coffee grinding device. Background Technology

[0002] Coffee grinding devices are used to grind coffee beans into coffee powder. During the crushing and grinding process, friction between the coffee beans and the grinding blades generates static electricity, causing the coffee powder to carry a certain amount of charge and resulting in fly-like powder. This manifests as adsorption or scattering due to static electricity, leading to dirt accumulation and potential malfunctions in the grinding device. Patent number CN 216293769 U discloses a technology that uses a plasma generator to eliminate static electricity. The plasma electrode is positioned in the coffee powder channel below the grinding blades. This technology eliminates the static electricity carried by the coffee powder, effectively solving the fly-like powder and adsorption problems. However, because the plasma electrode is located in the coffee powder channel, after a period of use, the flowing coffee powder gradually covers the plasma generator electrode, reducing the contact area between the plasma electrode and the air, which leads to a decrease in ionization efficiency. Authorization announcement number CN220695017 U discloses another technology that uses plasma to eliminate static electricity. The plasma generator electrode is located on the outside of the powder outlet tube and close to the powder drop inlet of the powder outlet tube. Although this technology can reduce the coverage of coffee powder on the electrode, because it is located on the outside of the powder outlet tube, the generated plasma cannot be fully mixed with the coffee powder, resulting in poor static electricity elimination. Furthermore, because the electrode is close to the powder drop inlet, the static electricity of the coffee powder passing through the powder outlet tube channel before reaching the powder drop inlet is not effectively eliminated and will adhere to the inner wall of the powder outlet tube. After a period of accumulation, it may cause blockage of the powder outlet tube. Utility Model Content

[0003] The purpose of this invention is to provide a coffee grinding device that uses plasma to eliminate static electricity in coffee powder. This device can effectively eliminate static electricity generated by ground coffee powder, and the plasma electrode used to eliminate static electricity is not easily covered by coffee powder, ensuring the continuity and stability of the ionization effect. In addition, coffee powder does not easily stick to the coffee powder outlet chamber, and the coffee channel is not easily blocked.

[0004] The above objectives are achieved in this way.

[0005] A coffee grinding apparatus includes a grinding chamber, a powder dispensing chamber, and a plasma generator. The plasma generator includes a plasma generator electrode. The inlet of the powder dispensing chamber is connected to the outlet of the grinding chamber. The powder dispensing chamber includes a powder dispensing channel that extends downward from the inlet of the powder dispensing chamber. It also includes a plasma generator chamber located above and communicating with the powder dispensing channel. The plasma generator electrode extends at least partially into the plasma generator chamber.

[0006] The objective of this utility model can also be optimized by the following technical measures.

[0007] Preferably, the vertical distance L between the plasma generator electrode and the powder outlet channel is greater than or equal to 0.5 mm.

[0008] Preferably, the narrowest width S at the connection between the plasma generating chamber and the powder outlet channel is greater than or equal to 0.5 mm.

[0009] Preferably, a baffle is provided between the plasma generating chamber and the powder outlet channel.

[0010] Preferably, the vertical distance L1 between the plasma generator electrode and the end of the baffle is greater than or equal to 0.5 mm.

[0011] Preferably, the narrowest width S1 of the plasma generating cavity in the baffle section is greater than or equal to 0.5 mm.

[0012] Preferably, the plasma generating chamber has an opening, and the plasma generating chamber is connected to the outside through the opening.

[0013] By adopting the above technical solution, this utility model can fully generate plasma by setting a plasma generating chamber above the coffee powder channel. The plasma generator electrode extends into the generating chamber and is staggered from the channel through which the coffee powder passes, thereby avoiding contamination and covering of the electrode by the coffee powder. The plasma generated by the plasma generating chamber located above the coffee powder channel can fully mix with the coffee powder passing through the coffee powder channel, eliminate static electricity, and prevent the coffee powder from adhering to the inner wall of the dispensing chamber. Attached Figure Description

[0014] Figure 1 This is a three-dimensional diagram of a coffee grinding device.

[0015] Figure 2 This is a partial cross-sectional view of a coffee grinding device.

[0016] Figure 3 for Figure 2 Sectional view of AA.

[0017] Figure 4 This is a partial cross-sectional view of Example 2.

[0018] Figure 5 This is a partial cross-sectional view of Example 3. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] Example 1, combined with Figures 1 to 3A coffee grinding device includes a grinding chamber 1, a powder dispensing chamber 2, and a plasma generator (not shown in the figure). The plasma generator also includes a plasma generator electrode 3. The grinding chamber 1 houses components for grinding coffee beans into powder. The inlet of the powder dispensing chamber 2 connects to the outlet of the grinding chamber 1. The powder dispensing chamber 2 includes a powder dispensing channel 21 extending downward from the inlet of the powder dispensing chamber 2. The coffee grinding device also includes a plasma generator chamber 31, located above and communicating with the powder dispensing channel 21. The plasma generator electrode 3 at least partially extends into the plasma generator chamber 31 but not into the powder dispensing channel 21. The vertical distance L between the plasma generator electrode 3 and the powder dispensing channel 21 is greater than or equal to 0.5 mm, and the narrowest width S of the plasma generator chamber 31 is greater than or equal to 0.5 mm. When the plasma generator is operating, it ionizes the air in the powder dispensing chamber 2 through the plasma generator electrode 3.

[0021] Example 2, combined with Figure 4 The difference between Example 2 and Example 1 is that a baffle 22 is provided between the plasma generating chamber 31 and the powder outlet channel 21. The baffle 22 is used to separate the powder outlet channel 21 from the plasma generating chamber 31. It should be noted that the baffle 22 only serves as a barrier and does not completely isolate the plasma generating chamber 31 from the powder outlet channel 21. The vertical distance L1 between the plasma generator electrode 3 and the end of the baffle 22 is greater than or equal to 0.5 mm, and the narrowest width S1 of the plasma generating chamber 31 in the baffle section is greater than or equal to 0.5 mm.

[0022] Example 3, combined with Figure 5 The difference between Example 3 and Example 1 is that the plasma generating chamber 31 is provided with an opening 23, and the plasma generating chamber 31 is connected to the outside through the opening 23.

Claims

1. A coffee grinding apparatus, comprising a grinding chamber, a powder dispensing chamber, and a plasma generator, wherein the plasma generator includes plasma generator electrodes, the inlet of the powder dispensing chamber is connected to the outlet of the grinding chamber, and the powder dispensing chamber includes a powder dispensing channel extending downward from the inlet of the powder dispensing chamber, characterized in that: It also includes a plasma generating chamber, which is located above and communicates with the powder outlet channel, and the plasma generator electrode extends at least partially into the plasma generating chamber.

2. The coffee grinding apparatus according to claim 1, characterized in that: The vertical distance L between the plasma generator electrode and the powder outlet channel is greater than or equal to 0.5 mm.

3. The coffee grinding device according to claim 1, characterized in that: The narrowest width S at the connection between the plasma generating chamber and the powder outlet channel is greater than or equal to 0.5 mm.

4. The coffee grinding apparatus according to claim 1, characterized in that: A baffle is provided between the plasma generating chamber and the powder outlet channel.

5. The coffee grinding apparatus according to claim 4, characterized in that: The vertical distance L1 between the plasma generator electrode and the end of the baffle is greater than or equal to 0.5 mm.

6. The coffee grinding apparatus according to claim 4, characterized in that: The narrowest width S1 of the plasma generating cavity in the baffle section is greater than or equal to 0.5 mm.

7. The coffee grinding apparatus according to claim 1, characterized in that: The plasma generating chamber has an opening, and the plasma generating chamber is connected to the outside world through the opening.

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