Connection, housing assembly of a coffee grinder and coffee grinder

CN224655161UActive Publication Date: 2026-08-21EXPLORER (SHANGHAI) NETWORK TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202521665911.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-06
Publication Date
2026-08-21
Estimated Expiration
2035-08-06

AI Technical Summary

Technical Problem

[0003]并且,目前的磨豆机在对咖啡豆进行研磨时,会因与磨豆组件的内、外刀盘与咖啡豆之间产生的摩擦,从而引起电效应而产生静电,并导致有部分咖啡粉会吸附在内、外刀盘的壁面上,因此当磨豆机在完成对咖啡豆的研磨后,粉杯内承接的咖啡粉的质量会远远小于投豆质量,从而影响咖啡粉在萃取时的浓度,并影响咖啡的最终口感

Benefits of technology

[0014]本实用新型的实施例相对于现有技术而言,由于磨豆机的主机壳体和粉杯之间设置有连接件,且连接件为导电部件,因此当磨豆机在完成对咖啡豆的研磨后,用户可通过触摸连接件,将咖啡粉因磨豆时所产生的电荷通过连接件并经人体导入大地,以达到消除至少部分咖啡粉上的静电的目的,使得吸附于磨豆组件上的咖啡粉至少有部分可顺利掉落于粉杯内,因此极大地消除了粉杯内承接的咖啡粉的质量与投豆质量之间的误差,从而提高了咖啡粉在萃取时的浓度,并提高了咖啡在冲泡后的口感。

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Abstract

The utility model discloses a part embodiment relates to a bean grinder, especially designs a kind of bean grinder, especially designs a kind of connecting piece, the shell assembly and bean grinder of bean grinder, the connecting piece is set to the bottom of the host shell of bean grinder, connecting piece is used to detachably connect the powder cup of bean grinder, and powder cup and host shell are separated;Connecting piece is conductive component, when bean grinder completes bean grinding, connecting piece is used to eliminate at least part of the static electricity generated when bean grinding assembly grinds beans after being touched, so that at least part of coffee powder adsorbed on bean grinding assembly falls in powder cup.Compared with prior art, when bean grinder completes bean grinding, user can touch connecting piece, and the charge generated when coffee powder grinds beans is introduced into the earth through connecting piece and human body, to achieve the purpose of eliminating static electricity on at least part of coffee powder, so that at least part of coffee powder on bean grinding assembly can successfully fall in powder cup.
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Description

Technical Field

[0001] Some embodiments of this utility model relate to a coffee grinder, and specifically design a connector, a housing assembly for the coffee grinder, and the coffee grinder itself. Background Technology

[0002] Portable coffee grinders are portable devices that grind coffee beans into coffee powder. Because of their small size and portability, users can enjoy freshly ground coffee anytime, anywhere.

[0003] Furthermore, current coffee grinders generate static electricity due to friction between the inner and outer blades of the grinding assembly and the coffee beans during grinding. This static electricity causes some coffee powder to adhere to the walls of the inner and outer blades. As a result, after the grinder finishes grinding the coffee beans, the amount of coffee powder in the coffee cup is much less than the amount of beans added, which affects the concentration of the coffee powder during extraction and the final taste of the coffee. Utility Model Content

[0004] The purpose of this invention is to design a connector, a coffee grinder housing assembly, and a coffee grinder that can effectively prevent coffee powder from adhering to the inner and outer blade surfaces of the grinder assembly due to static electricity during grinding. This ensures that the quality of coffee powder held in the coffee cup is basically consistent with the quality of coffee beans added, thereby guaranteeing the concentration of coffee powder during extraction and ensuring the taste of the coffee after brewing.

[0005] To achieve the above objectives, some embodiments of the present invention provide a connector, which is disposed at the bottom of the main housing of the coffee grinder and is used to detachably connect the coffee grinder's powder cup, separating the powder cup from the main housing;

[0006] The connector is a conductive component, and when the coffee grinder finishes grinding, the connector is used to eliminate the static electricity generated by at least part of the grinding components during grinding, so that at least part of the coffee powder adsorbed on the grinding components falls into the powder cup.

[0007] In addition, some embodiments of this utility model also provide a housing assembly for a coffee grinder, the housing assembly comprising:

[0008] The main housing is used to store the grinding components of the coffee grinder;

[0009] As described above, the housing assembly of the coffee grinder is located at the bottom of the main housing and is used to detachably connect the coffee grinder's powder container so that the powder container can receive the coffee powder produced by the grinding assembly when grinding coffee beans.

[0010] In addition, some embodiments of this utility model also provide a coffee grinder, the coffee grinder comprising:

[0011] The housing assembly as described above;

[0012] The grinding assembly is disposed within the outer shell of the housing assembly;

[0013] The powder cup is detachably connected to the side of the connector away from the housing assembly.

[0014] Compared with the prior art, the embodiments of this utility model have a connecting part between the main body of the coffee grinder and the powder container. Since the connecting part is a conductive component, after the coffee grinder finishes grinding the coffee beans, the user can touch the connecting part to conduct the charge generated by the coffee powder during grinding through the connecting part and the human body to the ground. This achieves the purpose of eliminating static electricity on at least some of the coffee powder, so that at least some of the coffee powder adsorbed on the grinding component can fall smoothly into the powder container. Therefore, it greatly eliminates the error between the quality of the coffee powder held in the powder container and the quality of the beans fed in, thereby improving the concentration of coffee powder during extraction and improving the taste of coffee after brewing. Attached Figure Description

[0015] Figure 1 This is an isometric view of the connector in some embodiments of the present invention;

[0016] Figure 2 for Figure 1 A top-down view;

[0017] Figure 3 for Figure 2 Schematic diagram of the cross section at point AA;

[0018] Figure 4 This is an isometric view of the coffee grinder in some embodiments of the present invention;

[0019] Figure 5 for Figure 4 Front view diagram;

[0020] Figure 6 for Figure 5 Schematic diagram of the cross section at point BB;

[0021] Figure 7 This is a bottom isometric view of the coffee grinder without the powder cup installed in some embodiments of the present invention;

[0022] Figure 8 This is an isometric view of the connection between the main control module inside the coffee grinder and the negative ion generator in some embodiments of the present invention. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been presented in the various embodiments of this utility model to enable the reader to better understand this application. However, the technical solutions claimed in this application can be implemented even without these technical details and with various changes and modifications based on the following embodiments.

[0024] Example 1

[0025] The first embodiment of this utility model relates to a connector, such as... Figure 4 and Figure 5 As shown, the connector 1 is located at the bottom of the main housing 2 of the coffee grinder, and is combined with... Figure 6 As shown, the connector 1 is used to detachably connect the coffee grinder's powder cup 3 and separate the powder cup 3 from the main housing 2.

[0026] The connector 1 is a conductive component, and when the coffee grinder finishes grinding, the connector 1 is used to eliminate the static electricity generated by at least part of the grinding assembly 4 during grinding after being touched, so that at least part of the coffee powder adsorbed on the grinding assembly 4 falls into the powder cup 3.

[0027] As can be seen from the above, since there is a connector 1 between the main body housing 2 and the coffee caddy 3 of the coffee grinder, and the connector 1 is a conductive component, after the coffee grinder finishes grinding the coffee beans, the user can touch the connector 1 to conduct the charge generated by the coffee powder during grinding through the connector 1 and the human body to the ground, thereby eliminating the static electricity on at least some of the coffee powder. This allows at least some of the coffee powder adsorbed on the grinding component 4 to fall smoothly into the coffee caddy 3, thus greatly eliminating the error between the quality of the coffee powder held in the coffee caddy 3 and the quality of the beans fed in, thereby increasing the concentration of the coffee powder during extraction and improving the taste of the coffee after brewing.

[0028] Specifically, to ensure that the connector 1 possesses certain electrical conductivity, in some embodiments, the connector 1 can be a metal component, such as one made of iron, aluminum, or copper. Of course, in other embodiments, the connector 1 can also be made of carbon-based or silicon-based materials; however, in this embodiment, the material type of the connector 1 is not specifically limited. Furthermore, to facilitate user touch while also enabling detachable connection between the connector 1 and the powder cup 3, in other embodiments, it is combined with… Figures 1 to 3 As shown, connector 1 is an annular component, and connector 1 includes: a partition 11 and a connecting ring 12. Wherein, combined Figure 4 and Figure 5As shown, a partition 11 is disposed at the bottom of the main housing 2 and connected to the bottom of the main housing 2, and the partition 11 is used to separate the main housing 2 and the powder cup 3. Furthermore, as... Figure 3 As shown, the partition 11 includes: an inner side 112 forming the powder inlet 111, an upper surface 113 facing the main housing 2, and a lower surface 114 facing the powder cup 3. Additionally, as... Figure 1 , Figure 2 and Figure 3 As shown, the connecting ring 12 is arranged circumferentially around the partition 11 and is connected to the partition 11. Furthermore, it is combined with... Figure 1 and Figure 3 As shown, the connecting ring 12 protrudes from the upper surface 113 of the partition 11 to form an upper edge 121, and this upper edge 121 surrounds an upper mounting area 115 on the upper surface 113 of the partition 11. This upper mounting area 115 is used to mount the main unit housing 2. Meanwhile, as... Figure 1 and Figure 3 As shown, the connecting ring 12 also protrudes from the lower surface 114 of the partition 11 to form a lower edge 122, and the lower edge 122 surrounds the lower surface 114 of the partition 11 to form a lower mounting area 116, which is used to install the powder cup 3.

[0029] Furthermore, it is worth mentioning that, such as Figure 1 and Figure 2 As shown, the connecting ring 12 has an inner surface 123 and an outer surface 124. The inner surface 123 is connected to the partition 11 and is combined with... Figure 3 As shown, the inner surface 123 includes a first inner annular surface 1231 connected to the upper surface 113 of the partition 11, and a second inner annular surface 1232 connected to the lower surface 114 of the partition 11, while the outer surface 124 is opposite to the first inner annular surface 1231 and the second inner annular surface 1232 respectively. Furthermore, it is worth noting that, as... Figure 3 and Figure 6 As shown, the second inner ring surface 1232 is also detachably connected to the powder cup 3, for example, in some embodiments, such as Figure 3 As shown, the second inner ring surface 1232 is provided with an internal thread 1233. The internal thread 1233 enables the connecting ring 12 and the powder cup 3 to be threadedly connected, thereby allowing the powder cup 3 to be fixed within the lower mounting area 116 of the connector 1, and also facilitating the user's disassembly and installation of the powder cup 3. Of course, as an alternative, in some embodiments, the second inner ring surface 1232 may also be provided with a snap-fit ​​(not shown in the figure), which enables the connecting ring 12 and the powder cup 3 to be snap-fit ​​connected. However, in this embodiment, the connection method between the connecting ring 12 and the powder cup 3 is not specifically limited.

[0030] Additionally, in order to secure the connector 1 to the bottom of the main unit housing 2, in some other embodiments, such as Figure 6 As shown, the partition 11 of connector 1 can be detached and connected to the cutter head bracket 23 of the main housing 2. For example, as... Figure 2 As shown, multiple mounting holes 118 can be pre-set on the partition 11, and simultaneously combined with Figure 6 and Figure 7 As shown, each mounting hole 118 of the partition 11 can be penetrated by a bolt 25, so that the partition 11 and the cutter head support 23 can be locked and fixed by multiple bolts 25, thereby fixing the partition 11 to the cutter head support 23. Furthermore, to facilitate locking the cutter head support 23 to the partition 11, as a preferred embodiment, in other embodiments, such as... Figure 1 and Figure 3 As shown, a portion of the partition 11 protrudes towards the powder cup 3, allowing a positioning groove 117 to be formed on the upper surface 113 of the partition 11, and in conjunction with... Figure 6 As shown, the positioning groove 117 can be partially embedded in the cutter head bracket 23, so that the positioning groove 117 can position the cutter head bracket 23. Therefore, when the connector 1 and the cutter head bracket 23 are locked and fixed by the bolt 25, the positioning groove 117 can be used to position the cutter head bracket 23, which can prevent the cutter head bracket 23 from generating radial displacement, thereby facilitating the assembly between the connector 1 and the main housing 2.

[0031] Example 2

[0032] Embodiment 2 of this utility model relates to a housing assembly for a coffee grinder, such as... Figure 6 As shown, the housing assembly includes a main housing 2 and a connector 1 as described in Embodiment 1. The main housing 2 is used to house the grinding assembly 4 of the coffee grinder, while the connector 1 is located at the bottom of the main housing 2 and is used to detachably connect to the coffee grinder's powder container 3, so that the powder container 3 can receive the coffee powder produced by the grinding assembly 4 when grinding coffee beans.

[0033] As can be seen from the above, since there is a connector 1 between the main body housing 2 and the coffee caddy 3 of the coffee grinder, and the connector 1 is a conductive component, after the coffee grinder finishes grinding the coffee beans, the user can touch the connector 1 to conduct the charge generated by the coffee powder during grinding through the connector 1 and the human body to the ground, thereby eliminating the static electricity on at least some of the coffee powder. This allows at least some of the coffee powder adsorbed on the grinding component 4 to fall smoothly into the coffee caddy 3, thus greatly eliminating the error between the quality of the coffee powder held in the coffee caddy 3 and the quality of the beans fed in, thereby increasing the concentration of the coffee powder during extraction and improving the taste of the coffee after brewing.

[0034] Specifically, in some embodiments, such as Figure 6As shown, the main housing 2 includes: an outer shell 21, an inner shell 22, and a blade holder 23. The outer shell 21 abuts against the upper edge 121 of the connector 1, and the outer shell 21 has an annular lower notch 24 extending from its bottom to its top. This annular lower notch 24 can be inserted into the upper edge 121 of the connector 1, allowing the connector 1 to be positioned radially by the upper edge 21 when assembled with the main housing 21. Furthermore, when the upper edge 21 is inserted into the annular lower notch 24, as... Figure 4 and Figure 5 As shown, the outer surface 124 of the connecting ring 12 can be integrated with the outer side of the outer casing 21, so that the connecting ring 12 does not protrude significantly from the outer casing 21, thus ensuring the integrity of the coffee grinder's casing assembly. Additionally, as... Figure 6 As shown, the burr holder 23 is disposed within the housing 21 and is detachably connected to the partition 11 of the connector 1. This burr holder 23 is used to mount the grinding assembly 4. Furthermore, it is worth noting that, as... Figure 6 As shown, the cutter head support 23 includes: an inner wall 232 forming a mounting hole 231 around the axis of the connector 1; an outer wall 233 opposite to the inner wall 232; and a connecting wall 234 connecting the inner wall 232 and the outer wall 233. Wherein, as... Figure 6 As shown, the outer wall 233 and the inner surface of the outer shell 21 are opposite to each other, and the top side of the outer wall 233 can be pressed against the inner shell 21 of the main housing 2. Furthermore, the inner wall 231 forms a mounting hole 231 around the axis of the connector 1. The grinding assembly 4 can be installed through this mounting hole 231, and simultaneously... Figure 3 and Figure 6 As shown, a portion of the inner wall 232 of the cutter head bracket 23 is inserted into the positioning groove 117 of the partition plate 11. The positioning groove 117 positions the cutter head bracket 23, which can prevent the cutter head bracket 23 from undergoing radial displacement. This allows the user to easily use bolts 25 to lock and fix the connector 1 to the cutter head bracket 23.

[0035] Example 3

[0036] Embodiment 3 of this utility model relates to a coffee grinder, such as... Figure 4 , Figure 5 and Figure 6 As shown, the coffee grinder includes: a housing assembly, a grinding assembly 4, and a powder cup 3 as described in Embodiment 2.

[0037] Among them, such as Figure 6 As shown, the coffee grinding assembly 4 is disposed within the outer shell 21 of the housing assembly, and the coffee powder cup 3 is detachably connected to the side of the connector 1 away from the housing assembly. Furthermore, the coffee powder cup 3 includes a lower shell 31 and a cup body 32, wherein the lower shell 31 is detachably connected to the side of the connector 1 away from the housing assembly, and the cup body 32 is disposed within the lower shell 31, serving to receive the coffee powder produced by the coffee grinding assembly 4 during coffee bean grinding.

[0038] In addition, to further prevent coffee powder from being electrostatically attracted to the grinding assembly 4 after grinding, as a preferred embodiment, in some other embodiments, the cup body 32 can also be a metal cup body. Therefore, after the grinding assembly 4 finishes grinding the coffee beans, the user's touch on the connector 1 can quickly transfer at least some of the undischarged charge on the coffee powder to the metal cup body, allowing at least some of the coffee powder to fall quickly into the cup body 32. This greatly eliminates the error between the quality of the coffee powder held in the cup body 32 and the quality of the beans, thereby increasing the concentration of coffee powder during extraction and improving the taste of the coffee after brewing.

[0039] Furthermore, it is evident from the scheme of Embodiment 1 that since the powder cup 3 and the second inner ring surface 1232 of the connector 1 are installed via a threaded connection, and since the second inner ring surface 1232 is provided with an internal thread 1233, corresponding to the internal thread 1233 on the second inner ring surface 1232, a portion of the lower shell 31 tapers inward from the top to the bottom, forming an annular upper notch 33 at the top of the lower shell 31 into which the lower edge 122 of the connector 1 can be inserted. This allows the lower edge 122 of the connector 1 to position the powder cup 3 radially. Meanwhile, an external thread 34 is provided on the outer side of the lower shell 31 at the position corresponding to the annular upper notch 33. The external thread 34 engages with the internal thread 1233 on the connecting ring 12, so that the powder cup 3 can be fixed to the lower mounting area 116 of the connector 1. After the powder cup 3 and the connector 1 are assembled, since the lower edge 122 is inserted into the annular upper notch 33 of the lower shell 31, the outer surface 124 of the connecting ring 12 can be integrated with the outer side of the lower shell 31 of the powder cup 3, so that the connecting ring 12 will not protrude significantly from the powder cup 3, thus ensuring the integrity of the grinder.

[0040] In addition, during the grinding process of the grinding component 4, in order to avoid affecting the cup body 32's ability to receive coffee powder while also facilitating the stability of the assembly between the cup body 32 and the lower shell 31, in some embodiments, such as Figure 6 As shown, the cup body 32 includes: a cup bottom 321 and side walls 322 circumferentially surrounding the cup bottom 321. The side walls 322 form a powder storage space 323 on the cup bottom 321, and on the side away from the cup bottom 321, the side walls 322 form a cup opening 324 communicating with the powder storage space. Additionally, as... Figure 6As shown, a portion of the sidewall 322 from the cup opening 324 to the cup bottom 321 bends away from the powder storage space 323 to form a hanging ear 325. Therefore, the cup body 32 can be suspended and snapped onto the top side of the lower shell 31 through the hanging ear 325, thereby allowing the cup body 32 to be stably installed inside the lower shell 31. Furthermore, as a preferred embodiment, in some other embodiments, a nut washer 35 can be fixed to the side of the cup bottom 321 away from the cup opening 324, and a threaded hole (not shown in the figure) is provided on the cup bottom 321 corresponding to the nut washer 35. This threaded hole and the nut washer 35 can be coaxially arranged, so that the cup bottom 321 and the cup body 32 can be locked and fixed by bolts 36. That is, the bolts 36 can be screwed into the nut washer 35 from the threaded hole on the cup bottom 321, thereby improving the stability of the cup body 32 installed inside the lower shell 31, and effectively preventing the cup body 32 from vibrating or shifting during the grinding process of the grinding assembly 4.

[0041] Furthermore, as a preferred embodiment, in other embodiments, such as Figure 8 As shown, the coffee grinder also includes a negative ion generator 5, which is located inside the main housing 2 and electrically connected to the main control module 6 of the coffee grinder. It is used to receive electrical energy from the main control module 6 and can also generate electrons that enter the powder cup 3 based on the received electrical energy.

[0042] It is easy to see that since the coffee grinder also includes a negative ion generator 5 installed in the main housing 2, and the negative ion generator 5 is also electrically connected to the main control module 6 of the coffee grinder, after the coffee grinder finishes grinding the coffee beans, the main control module 6 can supply power to the negative ion generator 5, so that the negative ion generator 5 can continuously discharge and generate electrons that enter the powder cup 3. These electrons can quickly transfer to the coffee powder adsorbed on the grinding component 4, so that the coffee powder on the grinding component 4 can quickly fall into the powder cup 3, and ensure that the quality of the coffee powder held in the powder cup 3 is basically consistent with the quality of the beans, thereby improving the concentration of coffee powder during extraction and ensuring the taste of coffee after brewing.

[0043] Specifically, such as Figure 8 As shown, the negative ion generator 5 includes a generator body 51 and an electrical connection assembly 52. ​​The generator body 51 has an emitter 511 that can generate negative ions into the coffee powder container 3 of a coffee machine. Next, as... Figure 8 As shown, the electrical connection component 52 is disposed on the generator body 51, and the electrical connection component 52 is also electrically connected to the main control module 6 of the coffee machine. At the same time, the electrical connection component 52 is also used to transmit the electrical energy generated by the main control module 6 to the generator body 51, so that the emitter 511 of the generator body 51 discharges and generates electrons that enter the powder cup 3.

[0044] Those skilled in the art will understand that the above embodiments are specific implementations of the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A connector, characterized in that, The connector (1) is located at the bottom of the main housing (2) of the coffee grinder and is used to detachably connect the coffee grinder's powder cup (3) to separate the powder cup (3) from the main housing (2). The connector (1) is a conductive component, and when the coffee grinder finishes grinding, the connector (1) is used to eliminate the static electricity generated by at least part of the grinding assembly (4) during grinding after being touched, so that at least part of the coffee powder adsorbed on the grinding assembly (4) falls into the powder cup (3).

2. The connector according to claim 1, characterized in that, The connector (1) is an annular component and includes: A partition (11) is provided at the bottom of the main housing (2) to separate the main housing (2) from the powder cup (3); the partition (11) includes: an inner side (112) forming the powder inlet (111), an upper surface (113) facing the main housing (2), and a lower surface (114) facing the powder cup (3); A connecting ring (12) is arranged around the circumference of the partition (11) and is connected to the partition (11); The connecting ring (12) protrudes from the upper surface (113) of the partition (11) to form an upper edge (121), and the upper edge (121) surrounds the upper surface (113) of the partition (11) to form an upper mounting area (115), which is used to mount the main unit housing (2). The connecting ring (12) also protrudes from the lower surface (114) of the partition (11) to form a lower edge (122), and the lower edge (122) surrounds the lower surface (114) of the partition (11) to form a lower mounting area (116), which is used to mount the powder cup (3).

3. The connector according to claim 2, characterized in that, The connecting ring (12) has: The inner surface is connected to the partition (11); the inner surface includes: a first inner ring surface (1231) connected to the upper surface (113) of the partition (11), and a second inner ring surface (1232) connected to the lower surface (114) of the partition (11); wherein the second inner ring surface (1232) is detachably connected to the powder cup (3); The outer surface is opposite to the first inner annular surface (1231) and the second inner annular surface (1232), respectively.

4. The connector according to claim 3, characterized in that, The second inner annular surface (1232) is provided with an internal thread (1233) and is threadedly connected to the powder cup (3); Alternatively, the second inner ring surface (1232) is provided with a buckle and is snapped into connection with the powder cup (3).

5. The connector according to claim 2, characterized in that, The partition (11) is detachably connected to the blade holder (23) of the main housing (2), and a portion of the partition (11) protrudes toward the powder cup (3), so that the upper surface (113) forms a positioning groove (117). The positioning groove (117) is used to be partially embedded in the cutter head support (23) so that the positioning groove (117) positions the cutter head support (23).

6. A housing assembly for a coffee grinder, characterized in that, The housing assembly includes: Main body housing (2), used to store the grinding components (4) of the coffee grinder; The connecting part (1) of the coffee grinder as described in any one of claims 1-5 is disposed at the bottom of the main housing (2) and is used to detachably connect the coffee grinder's powder cup (3) so that the powder cup (3) receives the coffee powder produced by the coffee grinding assembly (4) when grinding coffee beans.

7. The housing assembly of the coffee grinder according to claim 6, characterized in that, The main unit housing (2) includes: The outer casing (21) presses against the upper edge (121) of the connector (1); A blade holder (23) is disposed inside the housing (21) and is detachably connected to the partition (11) of the connector (1); the blade holder (23) is used to install the grinding assembly (4); The inner shell (22) is disposed inside the outer shell (21) and presses against the cutter head support (23).

8. A coffee grinder, characterized in that, The coffee grinder includes: The housing assembly as described in claim 6 or 7; The grinding assembly (4) is disposed inside the outer shell (21) of the housing assembly; The powder cup (3) is detachably connected to the side of the connector (1) away from the housing assembly.

9. The coffee grinder according to claim 8, characterized in that, The powder cup (3) includes: The lower shell (31) is detachably connected to the side of the connector (1) away from the shell assembly; The cup body (32) is disposed inside the lower shell (31) and is used to receive the coffee powder produced by the grinding assembly (4) when grinding coffee beans; The cup body (32) is a metal cup body.

10. The coffee grinder according to claim 8, characterized in that, The coffee grinder also includes: The negative ion generator (5) is installed inside the main housing (2) and is electrically connected to the main control module (6) of the grinder. It is used to receive the electrical energy delivered by the main control module (6) and generate electrons that enter the powder cup (3) according to the received electrical energy.