Bean grinding device and coffee machine

Abstract

The utility model discloses a bean grinding device and coffee machine, the bean grinding device comprises a shell, a grinding assembly and a plasma generator, the shell is provided with a bean box, the grinding assembly is arranged in the shell, the grinding assembly comprises a support, a grinding knife and a powder outlet channel, the support is provided with a grinding cavity, the grinding knife is arranged in the grinding cavity, and the plasma generator is arranged in the grinding cavity. The grinding cutter is arranged in the grinding cavity, the bean box is located above the grinding cavity, one end of the powder outlet channel is communicated with the grinding cavity, and the other end of the powder outlet channel is inserted into the shell to form a powder outlet; the plasma generator is arranged in the shell and provided with an electrode needle, the electrode needle is located outside the powder outlet channel, and the emitting end of the electrode needle penetrates through the shell and then is located on one side of the powder outlet. The electrode needle is arranged outside the powder outlet channel and located on one side of the powder outlet, the coffee powder cannot be accumulated in the powder outlet channel even if the electrode needle adsorbs the coffee powder, and the powder outlet channel is prevented from being blocked.

Description

TECHNICAL FIELD

[0001] The utility model relates to coffee bean grinding technical field, specifically, especially, it is a kind of grinder and coffee machine. BACKGROUND

[0002] Grinder and semi-automatic coffee machine etc. have the function of grinding beans, and coffee beans are broken into coffee powder by high-speed rotation of cutter head in the grinding process, causing coffee powder to have negative charge static electricity, and flying powder problem occurs.

[0003] The existing grinder or coffee machine usually inserts positive electrode and negative electrode in the powder outlet channel of grinding mechanism, generates positive and negative ions by ionizing air molecules through plasma generator, so as to neutralize the charge of coffee powder, to solve the problem of flying powder. However, since the positive electrode and the negative electrode have electric charge, the positive electrode and the negative electrode will adsorb coffee powder, and after long-term use, a large amount of powder will be accumulated and adhered to the electrode, causing the powder outlet channel to be blocked, and also affecting the flying powder removal effect of the positive electrode and the negative electrode. SUMMARY

[0004] The utility model aims at providing a kind of grinder and coffee machine, to solve the problem that the electrode surface of existing grinder is easy to adsorb dust, causing the powder outlet channel to be blocked.

[0005] The grinding mechanism of the utility model can be realized by the following technical solutions:

[0006] A kind of grinder, including shell, grinding assembly and plasma generator, the shell is equipped with bean box, the grinding assembly is arranged in the shell, the grinding assembly includes support, grinding knife, driving mechanism and powder outlet channel, the support is equipped with grinding cavity, the grinding knife is arranged in the grinding cavity, the grinding knife is electrically connected with the driving mechanism, the bean box is located above the grinding cavity, one end of the powder outlet channel is communicated with the grinding cavity, the other end of the powder outlet channel is inserted in the shell and forms powder outlet; The plasma generator is located in the shell, the plasma generator is equipped with electrode needle, the electrode needle is located outside the powder outlet channel, and the emission end of the electrode needle is located on one side of the powder outlet after passing through the shell.

[0007] In one embodiment, the electrode needle includes positive electrode and negative electrode, the outer wall surface of the shell is provided with first baffle, the first baffle is located at the edge of the powder outlet, and the horizontal projection of the first baffle is located between the positive electrode and the negative electrode.

[0008] In one embodiment, the outer wall surface of the shell is also provided with second baffle, the second baffle is wrapped around the periphery of the positive electrode and negative electrode, and both ends of the second baffle are arranged adjacent to the edge of the powder outlet.

[0009] In one embodiment, the second baffle has an opening between two ends thereof, the opening is towards the edge of the powder outlet, the first baffle is located at the opening, and the length of the first baffle is less than the width of the opening.

[0010] In one embodiment, the second baffle has a "U" shape structure with two corners, the shell has a through hole at the corner, the positive electrode and the negative electrode emitting end pass through the through hole, and the two ends of the second baffle have a gap between the first baffle, and the gap is opposite to the through hole.

[0011] In one embodiment, the plasma generator further comprises an electrode support frame, the electrode needle is fixed on the electrode support frame, and the electrode support frame is fixedly connected with the shell.

[0012] Alternatively, the electrode support frame is fixed on the outer wall of the powder outlet channel.

[0013] In one embodiment, the shell is provided with a support column, the electrode support frame is provided with a top plate and a positioning column, the top plate is fixed on the support column through a screw, and the electrode needle is arranged in the positioning column.

[0014] In one embodiment, the shell is further provided with a supporting frame, and the supporting frame is located directly below the powder outlet.

[0015] The utility model also provides a coffee machine which comprises the above-mentioned bean grinder.

[0016] Compared with the prior art, the utility model discloses a bean grinder and a coffee machine which have the following beneficial effects: the electrode needle of the plasma generator is arranged outside the powder outlet channel, the emitting end of the electrode needle is clamped on the shell, the emitting end of the electrode needle is located on one side of the powder outlet, the coffee powder is removed from the powder outlet by ionizing air, thereby preventing the occurrence of flying powder. Long-term use, the coffee powder adsorbed on the electrode needle will not cause the coffee powder to accumulate in the powder outlet channel, thereby avoiding the phenomenon of powder outlet channel blockage. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and therefore should not be regarded as a limitation to the scope, and for the ordinary skilled person in the art, other related drawings can also be obtained according to these drawings without creative labor.

[0018] Figure 1 It is the internal structure schematic view of the bean grinder of the utility model, and does not contain the shell.

[0019] Figure 2 is the whole structure schematic diagram of the coffee machine, containing a bean grinder device;

[0020] Figure 3 is the structure schematic diagram of the coffee machine with the bean grinder device assembled in it;

[0021] Figure 4 is Figure 2 the cross-sectional schematic diagram of the coffee machine shown in the figure;

[0022] Figure 5 is Figure 2 the bottom view schematic diagram of the coffee machine shown in the figure;

[0023] Figure 6 is Figure 5 the enlarged view of B part in the figure;

[0024] Figure 7 is Figure 4 the enlarged view of A part in the figure.

[0025] In the figure, 1 is a shell, 11 is a first baffle, 12 is a second baffle, 121 is an opening, 122 is a corner, 123 is a gap, 13 is a supporting column, 14 is a supporting frame, 2 is a bean box, 3 is a grinding assembly, 31 is a support, 311 is a grinding cavity, 32 is a grinding knife, 33 is a powder outlet channel, 331 is a powder outlet, 34 is a driving mechanism, 4 is a plasma generator, 41 is an electrode needle, 411 is a positive electrode, 412 is a negative electrode, 42 is an electrode support frame, 421 is a top plate, and 422 is a positioning column. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

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

[0028] Please refer to Figures 1-7The embodiment provides a coffee bean grinding device for grinding coffee beans into coffee powder, which can be a separate coffee bean grinder or a coffee bean grinding mechanism in a semi-automatic coffee machine. The coffee bean grinding device comprises a shell 1, a grinding assembly 3 and a plasma generator 4, the shell 1 is provided with a bean box 2, and the grinding assembly 3 and the plasma generator 4 are arranged in the shell 1. The grinding assembly 3 comprises a support 31, a grinding knife 32 and a powder outlet channel 33, the support 31 is provided with a grinding cavity 311, the grinding knife 32 is arranged in the grinding cavity 311, the grinding knife 32 is electrically connected with a driving mechanism 34, and the driving mechanism 34 provides power for the grinding knife 32. In the embodiment, the driving mechanism 34 is a motor which is directly connected with a power supply in the coffee bean grinding device, and this part is prior art and will not be described herein. The bean box 2 is located above the grinding cavity 311, one end of the powder outlet channel 33 is communicated with the grinding cavity 311, and the other end of the powder outlet channel 33 is inserted into the shell 1 to form a powder outlet 331. When a user needs to grind coffee powder, coffee beans in the bean box 2 fall into the grinding cavity 311, the driving mechanism 34 is started, the grinding knife 32 rotates at a high speed to grind the coffee beans into coffee powder, and the coffee powder falls from the powder outlet 331 after passing through the powder outlet channel 33. When the coffee bean grinding device in the embodiment is a coffee bean grinder or is installed in a semi-automatic coffee machine, the shell 1 is further provided with a supporting frame 14, the supporting frame 14 is located directly below the powder outlet 331, and the user can hold a handle or other container to collect the coffee powder at the powder outlet 331 or can clamp the handle on the supporting frame 14 to complete the powder collection.

[0029] In the embodiment, the plasma generator 4 is provided with an electrode needle 41, the electrode needle 41 is located outside the powder outlet channel 33, and an emitting end of the electrode needle 41 is located on one side of the powder outlet 331 after penetrating through the shell 1. The emitting end of the electrode needle 41 ionizes air to generate ions, so that air around the powder outlet 331 becomes a charged environment, and the coffee powder falling from the powder outlet 331 is adsorbed by the ions, thereby avoiding the coffee powder from flying. In the coffee bean grinding device in the embodiment, the electrode needle 41 is arranged outside the powder outlet channel 33, and coffee powder adsorbed on the electrode needle 41 will not cause the coffee powder to accumulate in the powder outlet channel 33 after long-term use, thereby avoiding the powder outlet channel 33 from being blocked and unable to discharge the coffee powder. In addition, since the emitting end of the electrode needle 41 is clamped on the shell 1 after penetrating through the shell 1, it can be understood that the emitting end of the electrode needle 41 is exposed outside the shell 1, and the user can directly clean the emitting end of the electrode needle 41 from the outside when the anti-flying effect is poor after long-term use, so that the cleaning is more convenient.

[0030] In the embodiment, when the coffee bean grinding device is a coffee bean grinder which only has the coffee bean grinding function, the shell 1 refers to the shell of the coffee bean grinder; when the coffee bean grinding device is installed in a coffee machine, the shell 1 refers to the shell of the coffee machine.

[0031] Further, refer to Figures 3-7The coffee machine including the bean grinder device of the embodiment is shown, and preferably, the coffee machine is a semi-automatic coffee machine. The electrode needle 41 of the embodiment includes a positive electrode 411 and a negative electrode 412, and the outer wall surface of the shell 1 is provided with a first baffle 11. The first baffle 411 is located at the edge of the powder outlet 331, and the horizontal projection of the first baffle 411 is located between the positive electrode 411 and the negative electrode 412. The first baffle 411 is arranged at the edge of the powder outlet 331 to avoid a large amount of coffee powder falling from the edge of the powder outlet 311 directly being adsorbed on the positive electrode 411 and the negative electrode 412, so that the positive electrode 411 and the negative electrode 412 can be protected by the first baffle 411, and the electrode needle 41 can effectively remove the static electricity of the coffee powder for a long time. At the same time, the horizontal projection of the first baffle 411 is located between the positive electrode 411 and the negative electrode 412, that is, the first baffle 411 does not shield the positive electrode 411 and the negative electrode 412, avoiding blocking the contact between the isolated air and the powder outlet 311, thereby avoiding affecting the effect of removing the static electricity of the coffee powder.

[0032] Further, please refer to Figure 6 and Figure 7 The outer wall surface of the shell 1 is further provided with a second baffle 12, the second baffle 12 surrounds the periphery of the positive electrode 411 and the negative electrode 412, and both ends of the second baffle 12 are arranged adjacent to the edge of the powder outlet 331. The second baffle 12 can be arranged in a semicircular arc shape or an irregular curved shape. When the coffee powder is ground to be finer, the grinding knife 32 rotates faster, resulting in finer coffee powder, and a large amount of coffee powder with static electricity is more likely to fly. By arranging the second baffle 12 to surround the positive electrode 411 and the negative electrode 412, a barrier can be formed around the periphery of the positive electrode 411 and the negative electrode 412, avoiding the positive electrode 411 and the negative electrode 412 adsorbing external dust, and further ensuring the long-term effective effect of the positive electrode 411 and the negative electrode 412 on removing the static electricity of the coffee powder. Since the second baffle 12 adopts a surrounding manner, an opening 121 is formed between the two ends of the second baffle 12, the opening 121 faces the edge of the powder outlet 331, the first baffle 11 is located at the opening 121, and the length of the first baffle 11 is less than the width of the opening 121, that is, the first baffle 11 does not block the opening 121, so that there is a distance between the first baffle 11 and the two ends of the second baffle 12, and the electrode needle 41 can ionize the air around the powder outlet 331, without affecting the effect of the plasma generator 4 on removing static electricity.

[0033] Specifically, in the embodiment, the second baffle 12 is in a "Fang" type structure, which has two corners 122, the shell 1 is provided with through holes (not marked in the figure), the through holes are also provided with two, respectively located at the two corners 122, the emitting end of the positive electrode 411 and the negative electrode 412 correspondingly passes through the two through holes, so that the positive electrode 411 and the negative electrode 412 are fixed at the corners 122. The two ends of the second baffle 12 have a gap 123 between the first baffle 11, the gap 123 is opposite to the through hole, it can be understood that the two ends of the second baffle 12 form an opening 121, the first baffle 11 is located in the range of the opening 121, thereby forming two gaps 123, the positive electrode 411 and the negative electrode 412 are opposite to the two gaps 123 respectively, so that the air near the powder outlet 33 can be ionized, without affecting the effect of removing the static electricity of the coffee powder.

[0034] The first baffle 11 can be flush with the opening 121, or can be inclined to the opening 121. In the embodiment, the first baffle 11 is preferably flush with the opening 121, and the two ends of the second baffle 12 are located on a horizontal line with the first baffle 11. In this way, the user can clean it conveniently, and the effect of removing the static electricity of the coffee powder can be better.

[0035] Please refer to Figure 3 、 Figure 4 and Figure 7 , the plasma generator 4 further comprises an electrode support frame 42, the electrode needle 41 is fixed on the electrode support frame 42, and the electrode support frame 42 is fixedly connected with the shell 1, so that the electrode needle 41 is more stably clamped on the shell 1. Of course, the electrode support frame 41 can also be fixed on the outer wall of the powder outlet channel 33, so that the electrode needle 41 can be arranged adjacent to the powder outlet 331.

[0036] Specifically, the shell 1 is provided with a support column 13, the electrode support frame 42 is provided with a top plate 421 and a positioning column 422, the top plate 421 is fixed on the support column 42 by screws, and the electrode needle 41 is arranged in the positioning column 422, so that the electrode needle 41 is more stably fixed on one side of the powder outlet 331. In the embodiment, the positioning column 422 is provided with two, which are respectively used for fixing the positive electrode 411 and the negative electrode 412. The electrode support frame 42 is fixed on the shell 1 through the top plate 421, and the side wall is fixed on the outer wall of the powder outlet channel 33. In this way, the whole electrode needle 41 can be better fixed outside the powder outlet channel 33, and can be adjacent to the powder outlet 331, so as to avoid that the distance between the electrode needle 41 and the powder outlet 331 is too far, thereby affecting the effect of removing the static electricity of the coffee powder.

[0037] The embodiment also provides a coffee machine, which comprises the above-mentioned grinding device, i.e. Figure 2The coffee machine can solve the problem of flying coffee powder and the problem of powder blockage caused by inserting the electrode needle into the powder outlet channel.

[0038] The technical features of the above embodiments can be combined in any manner, and for the sake of brevity, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not contradict, they should be considered within the scope of the present disclosure.

[0039] The above embodiments only express several implementation manners of the present application, and the description is relatively 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 persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A coffee grinding device, characterized in that, Comprising: A housing, on which a bean box is provided; A grinding assembly, which is arranged inside the housing. The grinding assembly includes a bracket, grinding knives, a driving mechanism and a powder outlet channel. The bracket has a grinding cavity, the grinding knives are arranged in the grinding cavity, the grinding knives are electrically connected to the driving mechanism, the bean box is located above the grinding cavity, one end of the powder outlet channel is communicated with the grinding cavity, and the other end of the powder outlet channel is inserted into the housing to form a powder outlet; A plasma generator, which is arranged inside the housing; the plasma generator has electrode needles, the electrode needles are located outside the powder outlet channel, and the emitting ends of the electrode needles pass through the housing and are located on one side of the powder outlet.

2. The grinding device according to claim 1, characterized in that, The electrode needles include a positive electrode and a negative electrode. A first baffle is provided on the outer wall surface of the housing. The first baffle is located at the edge of the powder outlet, and the horizontal projection of the first baffle is located between the positive electrode and the negative electrode.

3. The grinding device according to claim 2, characterized in that, A second baffle is further provided on the outer wall surface of the housing. The second baffle surrounds the positive electrode and the negative electrode, and both ends of the second baffle are adjacent to the edge of the powder outlet.

4. The grinding device according to claim 3, characterized in that, An opening is formed between both ends of the second baffle. The opening faces the edge of the powder outlet. The first baffle is located at the opening, and the length of the first baffle is less than the width of the opening.

5. The grinding device according to claim 3, characterized in that, The second baffle is in a "C" - shaped structure and has two corners; a through - hole is provided on the housing. The through - hole is located at the corner. The emitting ends of the positive electrode and the negative electrode pass through the through - hole. There is a gap between both ends of the second baffle and the first baffle, and the gap is opposite to the through - hole.

6. The grinding device according to claim 1, characterized in that, The plasma generator further includes an electrode support frame. The electrode needles are fixed on the electrode support frame, and the electrode support frame is fixedly connected to the housing; Alternatively, the electrode support frame is fixed on the outer wall of the powder outlet channel.

7. The grinding device according to claim 6, characterized in that, The housing has support columns. The electrode support frame has a top plate and positioning columns. The top plate is fixed on the support columns by screws, and the electrode needles are inserted into the positioning columns.

8. The grinding device according to claim 1, characterized in that, A support bracket is further provided outside the housing. The support bracket is located directly below the powder outlet.

9. A coffee machine, characterized in that, A bean grinding device according to any one of claims 1 - 8.

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