Coffee bean grinding system with anti-static structure

Abstract

The utility model discloses a coffee bean grinding system with an anti-static structure, which comprises a shell provided with a powder outlet channel, a grinding component rotatably arranged in the shell, a negative ion generating device, a negative ion generating device, a negative ion generating device, a negative ion generating device, a negative ion generating device and a negative ion generating device, and is characterized in that the grinding component is used for grinding coffee beans to form coffee powder and outputting the coffee powder from the powder outlet channel; the electrode probe is arranged on the outer side of the powder outlet channel, extends in the length direction of the powder outlet channel, is electrically connected with the negative ion generating device and can take away static electricity on the powder outlet channel; the electrode probe is arranged on the outer side of the powder outlet channel and extends in the length direction of the powder outlet channel, the dual effects of static elimination and physical isolation are achieved, negative ions directly act on the surface of the powder outlet channel through the structure, the electrostatic adsorption phenomenon in the coffee powder conveying process is effectively eliminated, and the service life of the coffee powder is prolonged. And meanwhile, the problem of powder accumulation failure caused by direct contact between the probe and the coffee powder is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of coffee machine technology, and in particular relates to a coffee grinding system with an anti-static structure. Background Technology

[0002] When coffee beans are ground, the coffee particles constantly rub against each other, generating static electricity. This static electricity causes the coffee grounds to attract or repel other objects. Coffee grounds can attract each other or adhere to other objects. Current coffee grinders commonly use plasma generators to produce negative ions to neutralize the static electricity in the coffee grounds, but the design has significant flaws. For example, Case 1 (patent CN 206183046 U) inserts an electrode probe directly into the powder outlet channel to contact the coffee grounds. While this efficiently releases negative ions, coffee grounds tend to accumulate on the probe surface after prolonged use, hindering ion release and disabling the anti-powder-fall function, requiring frequent cleaning and maintenance. Case 2, a common competing design, fixes the electrode probe to the machine body to prevent powder accumulation, but because the probe is too far from the powder outlet channel, negative ions cannot effectively cover the powder flow area, significantly reducing the anti-powder-fall effect and failing to solve the problem of powder sticking caused by static electricity within the powder outlet channel. Both schemes have obvious shortcomings in terms of practicality, durability and efficiency, and there is an urgent need for a new structural design that can both avoid probe powder accumulation and ensure the negative ion action distance. Utility Model Content

[0003] (I) Purpose of the utility model

[0004] To overcome the above shortcomings, the purpose of this utility model is to provide a coffee grinding system with an anti-static structure, so as to solve the technical problems in existing coffee grinders where the electrode probes fail due to direct contact with coffee powder, or where the negative ion efficiency is low due to the distance between the electrode probes and the powder outlet channel.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the technical solution provided in this application is as follows:

[0007] A coffee grinding system with an anti-static structure includes: a housing having a powder outlet channel; a grinding assembly rotatably disposed within the housing for grinding coffee beans into coffee powder and outputting it from the powder outlet channel; a negative ion generator; and an electrode probe disposed outside the powder outlet channel and extending along the length of the powder outlet channel, electrically connected to the negative ion generator, capable of discharging static electricity from the powder outlet channel.

[0008] By arranging the electrode probes on the outside of the coffee powder outlet channel and extending them along its length, the dual effects of static elimination and physical isolation are achieved. This structure allows negative ions to act directly on the surface of the coffee powder outlet channel, effectively eliminating the static adsorption phenomenon during the coffee powder delivery process, while avoiding the problem of powder accumulation and failure caused by direct contact between the probes and coffee powder.

[0009] In some embodiments, the upper end of the electrode probe is positioned below the upper powder inlet of the powder outlet channel;

[0010] By designing the probe height to be lower than the powder inlet, negative ions are concentrated and released in key areas of the powder outlet channel, which can effectively act on the falling coffee powder.

[0011] In some embodiments, it further includes: a fixing base, the upper end of which forms a fixing plate surface, and the lower end extends vertically to form a fixing sleeve through the fixing plate surface for the electrode probe to be fitted into.

[0012] The fixed base enables precise positioning and rapid assembly of the electrode probe. The vertical extension design of the fixed sleeve ensures that the probe and the powder outlet channel remain parallel, effectively eliminating static electricity from the entire powder outlet channel. At the same time, the through structure allows for free adjustment of the probe length to adapt to the installation requirements of different equipment models.

[0013] In some embodiments, the outer side of the housing is provided with a mounting protection groove for embedding the electrode probe at the position corresponding to the powder outlet channel, wherein the lower end of the fixing sleeve abuts against the top of the mounting protection groove.

[0014] The electrode probe is embedded in the mounting protection groove, which provides physical protection and effectively prevents probe displacement or damage caused by external impact. In addition, the lower end of the fixing sleeve abuts against the top of the mounting protection groove to ensure the stability of the entire mounting base.

[0015] In some embodiments, the outer side of the housing protrudes outward at the position corresponding to the powder outlet channel to form an integrally formed boss for screws to be inserted into and locked onto the fixed plate surface.

[0016] The protrusion is integrally formed on the outer shell, which allows for connection to the mounting base without adding any parts. This is cost-effective and easy to assemble. In addition, the protruding protrusion can prevent deformation of the outer shell caused by locking stress and also provides a precise screw guide plane to ensure the horizontality of the mounting base.

[0017] In some embodiments, two integrally formed auxiliary positioning blocks are symmetrically formed on both sides of the corresponding powder outlet channel on the outer surface of the outer shell;

[0018] The symmetrical auxiliary positioning component design further ensures the stability of the mounting base and effectively eliminates the probe deflection problem caused by equipment vibration.

[0019] In some embodiments, the housing includes a first housing for mounting the grinding assembly and a second housing detachably connected to the first housing, the first and second housings together forming a powder outlet channel;

[0020] The split-type outer shell design allows for quick disassembly and assembly for cleaning and maintenance of the powder dispensing channel. Attached Figure Description

[0021] Figure 1 This is a first-view structural schematic diagram of the coffee grinding system with an anti-static structure according to this utility model;

[0022] Figure 2 This is a second-view structural schematic diagram of the coffee grinding system with an anti-static structure according to this utility model;

[0023] Figure 3 This is an exploded view of the coffee grinding system with an anti-static structure according to this utility model;

[0024] Figure 4 This is a cross-sectional view of the coffee grinding system with an anti-static structure according to this utility model;

[0025] Figure 5 This is an assembly diagram of the second outer shell, the fixing base, and the electrode probe in the coffee grinding system with an anti-static structure of this utility model.

[0026] Figure 6 This is a schematic diagram of the structure of the second outer shell in the coffee grinding system with an anti-static structure according to this utility model;

[0027] Figure 7 This is an assembly diagram of the fixing base and electrode probe in the coffee grinding system with anti-static structure of this utility model.

[0028] Figure label:

[0029] 1. Outer shell; 101. Powder outlet channel; 1011. Second outer shell; 1012. First outer shell; 102. Auxiliary positioning block; 103. Mounting protection groove; 104. Boss; 2. Grinding assembly; 3. Negative ion generator; 4. Electrode probe; 5. Fixing base; 501. Fixing plate; 502. Fixing sleeve; 6. Powder dispensing component. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0031] This invention provides a coffee grinding system with an anti-static structure. Its core lies in optimizing the layout and assembly of the electrode probes 4 to avoid direct contact between coffee powder and the probes while improving the efficiency of negative ions in eliminating static electricity in the powder outlet channel 101. The following detailed description of the implementation of this invention is provided in conjunction with its specific structure.

[0032] The anti-static grinding structure mainly includes a housing 1, a grinding assembly 2, a negative ion generator 3, and an electrode probe 4. The housing 1 has a powder outlet channel 101 inside. The grinding assembly 2 is rotatably installed inside the housing 1 and is used to grind coffee beans into powder and output it through the powder outlet channel 101. The negative ion generator 3 is located outside the housing 1 and connected to it. It is electrically connected to the electrode probe 4 via a wire. The electrode probe 4 is located on the outside of the housing 1 and corresponds to the powder outlet channel 101. The electrode probe 4 is parallel to the powder outlet channel 101 and can eliminate static electricity on the surface of the powder outlet channel 101. Specifically, the electrode probe 4 includes a positive electrode probe 4 and a negative electrode probe 4.

[0033] Specifically, the negative ion generator 3 operates at a voltage of 12V DC, outputs a current of 2mA, and generates a negative ion concentration of 1×10⁻⁶. 6 ions / cm 3 The voltage of the electrode probe 4 is -5kV to -8kV (preferably -6kV). The electrode probe 4 can contact the outer surface of the powder outlet channel 101 or maintain a certain distance (e.g., 0.5 to 10 mm) from the powder outlet channel 101. The high voltage electric field neutralizes the electrostatic charge on the surface of the powder outlet channel 101.

[0034] Specifically, the grinding assembly 2 includes a pair of relatively rotatable grinding discs for grinding coffee beans into powder and outputting it through the powder outlet channel 101. It can be driven by a motor or manually. Specifically, a guide ramp can be provided inside the housing 1 corresponding to the bottom of the grinding discs to guide the coffee powder to the powder outlet channel 101, or a powder-dispensing component 6 connected to the grinding discs can be provided. When the active grinding discs rotate, the powder-dispensing component 6 rotates synchronously, dispensing the coffee powder into the powder outlet channel 101 for dispensing.

[0035] The arrangement of the electrode probe 4 is one of the key improvements in this design. Specifically, the electrode probe 4 extends along the length of the outer side of the coffee powder dispensing channel 101. This design avoids the problem of coffee powder accumulation caused by direct contact between the electrode probe 4 and the coffee powder, while also allowing negative ions to act efficiently on the surface of the coffee powder dispensing channel 101, effectively reducing electrostatic adsorption. In addition, the tip of the electrode probe 4 is parallel to the direction in which the coffee powder falls, further optimizing the coverage of negative ions.

[0036] To improve probe stability, this design incorporates a dedicated mounting base 5. The upper end of the mounting base 5 is a mounting plate 501, and the lower end extends into a vertical mounting sleeve 502. The electrode probe 4 can be fitted into the mounting sleeve 502 for precise positioning. A mounting protection groove 103 is provided on the outer side of the housing 1 corresponding to the powder outlet channel 101. The lower end of the mounting sleeve 502 abuts against the top of the mounting protection groove 103, preventing the electrode probe 4 from shifting due to external force and ensuring the mounting base 5 is securely installed. Simultaneously, a boss 104 is integrally formed on the outer surface of the housing 1. The mounting plate 501 is locked onto the boss 104 using screws, allowing assembly to be completed without additional parts, thus reducing manufacturing costs.

[0037] Furthermore, auxiliary positioning blocks 102 are symmetrically provided on both sides of the outer casing 1. Preferably, each positioning block has an auxiliary positioning groove on its inner side for limiting the position of the fixing sleeve 502. This design can counteract the vibration effect during equipment operation and prevent the electrode probe 4 from deflecting.

[0038] Furthermore, the outer casing 1 adopts a split structure, consisting of a first outer casing 1012 and a second outer casing 1011 that are detachably connected, together forming the internal coffee powder dispensing channel 101. Specifically, the first outer casing 1012 and the second outer casing 1011 are connected by four sets of clips and two M3 screws. During disassembly, loosening the screws and gently pressing the clips will separate the outer casing 1, making it easy to clean the coffee powder residue inside the dispensing channel 101.

[0039] In practical applications, the upper end of the electrode probe 4 is positioned below the inlet of the coffee powder outlet channel 101 (the opening in which coffee powder enters the outlet channel 101), ensuring that negative ions are concentrated on the key area where the coffee powder falls. Simultaneously, the electrode probe 4 is slightly higher than the lower surface of the protective mounting slot 103 to prevent accidental contact by the user. This layout, combined with an optimized assembly structure, significantly improves the anti-coffee-spraying effect and extends the equipment maintenance cycle.

[0040] In summary, this invention achieves both anti-static and anti-powder-accumulation effects through the synergistic optimization of probe position, fixing structure, and outer shell 1 design, while maintaining controllable costs. This structure is particularly suitable for coffee grinders requiring miniaturization and high efficiency, and has broad application prospects.

[0041] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A coffee grinding system with an antistatic structure, characterized in that, include: The outer casing (1) has a powder outlet channel (101), a grinding assembly (2) rotatably disposed inside the outer casing (1) for grinding coffee beans into coffee powder and outputting it from the powder outlet channel (101), a negative ion generator (3), an electrode probe (4) disposed outside the powder outlet channel (101) and connected to the outer casing (1), extending along the length direction of the powder outlet channel (101) and electrically connected to the negative ion generator (3), and capable of removing static electricity from the powder outlet channel (101).

2. The coffee grinding system with an antistatic structure according to claim 1, characterized in that, The upper end of the electrode probe (4) is lower than the upper powder inlet of the powder outlet channel (101).

3. The coffee grinding system with an antistatic structure according to claim 1, characterized in that, Also includes: The fixing base (5) has a fixing plate surface (501) at its upper end and a fixing sleeve (502) that extends vertically through the fixing plate surface (501) for the electrode probe (4) to be fitted into.

4. The coffee grinding system with an antistatic structure according to claim 3, characterized in that, The outer side of the outer shell (1) is provided with a mounting protection groove (103) for embedding the electrode probe (4) at the position corresponding to the powder outlet channel (101), wherein the top of the mounting protection groove (103) abuts against the lower end of the fixing sleeve (502).

5. The coffee grinding system with an antistatic structure according to claim 3, characterized in that, The outer side of the outer shell (1) protrudes outward at the position corresponding to the powder outlet channel (101) to form an integrally formed boss (104), which is used for screws to be inserted to lock the fixing plate (501).

6. The coffee grinding system with an antistatic structure according to claim 3, characterized in that, The outer surface of the outer shell (1) is integrally formed on both sides of the corresponding powder outlet channel (101) to form two auxiliary positioning blocks (102) that abut against the fixed sleeve (502).

7. The coffee grinding system with an antistatic structure according to claim 1, characterized in that, The housing (1) includes a first housing (1012) for mounting the grinding assembly (2) and a second housing (1011) detachably connected to the first housing (1012) to form the powder outlet channel (101).

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