Coffee scale

Abstract

The utility model discloses a coffee scale, it includes the scale body, and the scale body is by weighing part, display screen part and magnetic detachable connecting structure composition, this structure can realize two parts'split and the combination, and the display screen can be magnetically attracted fixed or handheld after splitting, adapts multiple scene. Weighing part bottom is equipped with first magnetic attraction charging female head, and the top of display screen part is equipped with the matched second magnetic attraction charging female head, and display screen part or weighing part still is equipped with third magnetic attraction charging female head, can realize the combination common charging and separate single charging. Weighing sensor is centrally installed, and the cooperation cushioning block, support frame and many installation groove structure guarantee precision, and the shell adopts aluminum alloy material quality to promote durability. The utility model discloses through detachable design to promote flexibility, and modularization layout reduces maintenance cost, and many magnetic attraction charging female heads optimize endurance adaptation, support separate charging and joint charging, promote endurance flexibility, avoid the influence of the whole use because one part is not powered.

Description

Technical Field

[0001] This utility model relates to the field of weighing device technology, specifically to a coffee scale. Background Technology

[0002] A coffee scale is a precision weighing tool specifically designed for coffee brewing. In traditional brewing, variables such as the ratio of coffee grounds to water and grind size directly affect the flavor, and manual estimation can easily lead to inconsistent taste. With the rise of specialty coffee culture, professionals have discovered that precisely controlling the weight of coffee grounds can significantly improve extraction consistency and release the optimal flavor profile of the coffee beans. Therefore, coffee scales have become a core tool for improving quality and standardizing processes, reflecting the modern coffee industry's pursuit of scientific and professional standards.

[0003] Chinese Patent Publication No. CN208125262U discloses a coffee scale, which consists of a base shell, a front shell covering the base shell, and an inner shell located between the two. The inner shell houses a control board, a display screen for showing mass data, a weighing sensor, and a power supply. A USB charging port is located on one side of the inner shell, with the power supply and charging port positioned opposite each other. The power supply, display screen, and sensor are all electrically connected to the control board. A silicone heat-insulating sleeve is laid on the front shell, its thickness matching the height of the display screen protruding from the front shell, ensuring a flat surface for the scale. Its core function is to solve the problems of high-temperature equipment contact affecting weighing accuracy / lifespan during hand-drip coffee making, and the difficulty in cleaning surface dirt. Regarding the shell material, the base shell and inner shell are made of ABS and fiberglass composite material, while the front shell is made of PC material. However, its integrated weighing and display design makes it difficult to detach the display for separate use or hang it elsewhere, limiting its flexibility. Furthermore, because the weighing and display components are integrated, if one part malfunctions, repair may require complete disassembly and inspection, making repairs more difficult and costly. Furthermore, while some existing coffee scales may have separate components, they lack the ability to charge each component individually or together, making them less flexible in use. For example, when the display unit's battery is depleted, it cannot be charged separately; the entire scale must be charged, which may affect efficiency in some situations.

[0004] Therefore, overcoming the aforementioned shortcomings has become an important issue that urgently needs to be addressed by those skilled in the art. Utility Model Content

[0005] This invention overcomes the shortcomings of the above-mentioned technology and provides a coffee scale.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A coffee scale, characterized in that it includes a scale body 100, the scale body 100 including a weighing part 101 and a display screen part 102 and a detachable connection structure; the detachable connection structure of the weighing part 101 and the display screen part 102 can separate the display screen part 102 and the weighing part 101 into two parts or connect them into one; the weighing part 101 is provided with a first magnetic charging female head 1 at its bottom, and the display screen part 102 is provided with a second magnetic charging female head 2 at its top, which can be attracted together with the first magnetic charging female head 1 and achieve electrical connection; the weighing part 101 or the display screen part 102 is also provided with a third magnetic charging female head 3 for charging together when they are combined.

[0007] Preferably, the detachable connection structure is a magnetic structure, which includes: at least one first magnetic member 103 installed at the bottom of the weighing part 101 and at least one second magnetic member 104 installed at the top of the display part 102 and magnetically attracted to the first magnetic member 103.

[0008] Preferably, the weighing part 101 includes: a first bottom shell 11 and a first cover 12 covering the first bottom shell 11. The first bottom shell 11 is equipped with a battery 13, a weighing sensor 14 and a first control circuit board 15. The battery 13, the weighing sensor 14 and the first control circuit board 15 are electrically connected. The first magnetic charging female connector 1 is electrically connected to the battery 13 through a wire. The weighing sensor 14 is installed in the middle of the first bottom shell 11.

[0009] Preferably, the first bottom shell 11 includes: a first bottom plate 111, a first mounting partition 112 stacked on the first bottom plate 111, and a first cover 113 covering the first bottom plate 111. The top outer surface of the first cover 113 is recessed with a first mounting groove 1131 for mounting a battery 13, a second mounting groove 1132 for mounting a weighing sensor 14, a third mounting groove 1133 for mounting a first control circuit board 15, and a fourth mounting groove 1134 for mounting a first magnetic charging female connector 1. The bottom surface of the first cover 113 is provided with a first opening 114 through which a portion of the first magnetic charging female connector 1 passes.

[0010] Preferably, the first mounting partition 112 is equipped with a shim 115 at a corresponding position below the second mounting groove 1132, and a support frame 116 is mounted on the shim 115. The support frame 116 is connected to the first cover 113 by screws and is located below the weighing sensor 14.

[0011] Preferably, the first mounting partition 112 has a central protrusion forming a convex surface 1121 and a first hollow opening 1122 is provided on the convex surface 1121. The shim block 115 is mounted on the first hollow opening 1122, and the support frame 116 has a second hollow opening 1161 in the middle.

[0012] Preferably, the top inner surface of the first cover 113 is provided with multiple first reinforcing ribs 1135, the first base plate 111 is provided with multiple second reinforcing ribs 1111, and the bottom surface of the first base plate 111 is uniformly provided with multiple protective pads 1112 and through grooves 1113 with screw holes.

[0013] Preferably, the first magnetic charging female connector 1, the second magnetic charging female connector 2, and the third magnetic charging female connector 3 each include: a mounting base 41, a plurality of charging pins 42 passing through the mounting base 41, and magnetic blocks 43 installed at the left and right ends of the mounting base 41.

[0014] Preferably, the display screen portion 102 includes: a second bottom shell 21 and a second cover 22 covering the second bottom shell 21. The second bottom shell 21 is sequentially equipped with a second battery 23, a second control circuit board 24, and a display screen 25 from bottom to bottom. The second bottom shell 21 has a second opening 211 at the top and a third opening 212 at the bottom. The second magnetic charging female connector 2 is installed on the second opening 211, and the third magnetic charging female connector 3 is installed on the third opening 212.

[0015] Preferably, the housing of the weighing part 101 and the display part 102 is an aluminum alloy housing.

[0016] Compared with the prior art, the beneficial effects of this utility model are: 1. Compared to existing integrated coffee scales, this design utilizes a magnetic, detachable connection structure, allowing for the free separation and assembly of the weighing and display components. When assembled, it functions as a traditional coffee scale, meeting basic weighing needs. When disassembled, the display can be magnetically attached to the surface of a coffee machine or other metal surface, or held for easy viewing. This solves the problems of limited viewing angle and inconvenient operation inherent in integrated designs, facilitating real-time monitoring of brewing parameters by professional baristas. Furthermore, the magnetic connection eliminates the need for clips or screws, simplifying assembly and disassembly, reducing mechanical wear, and extending the device's lifespan. Thus, the detachable magnetic design enhances usability and adapts to diverse usage scenarios.

[0017] 2. In this design, the weighing and display screen components adopt an independent modular design, with internal components integrated into their respective housings: the weighing unit houses the battery 13, weighing sensor 14, and first control circuit board 15; the display screen unit houses the second battery 23, second control circuit board 24, and display screen 25. When any module malfunctions, such as a damaged display screen or a sensor failure, the entire scale body can be replaced without disassembling it, significantly reducing maintenance difficulty and costs. This avoids the resource waste associated with partial faults requiring overall repair in existing integrated designs, making it more environmentally friendly and economical. Thus, modular layout reduces maintenance costs and minimizes resource waste. 3. This design addresses the pain point of existing split-type coffee scales being unable to charge independently. Through the coordinated design of the first, second, and third magnetic charging female connectors, it achieves dual functionality: simultaneous charging when both parts are together and individual charging when separate. When together, both parts can be charged simultaneously via the third magnetic charging female connector; when separate, each part can be individually charged via its corresponding female connector, preventing the overall use from being affected by a single part losing power. The magnetic female connectors have built-in charging pins and magnetic blocks; the circuit is established upon attraction, eliminating the need for cable plugging and unplugging. Precise positioning effectively prevents poor contact, and the ease of operation and charging reliability far surpass traditional USB interface designs. Thus, the combination of multiple magnetic charging female connectors achieves both charging flexibility and reliability. 4. In this case, the load cell 14 is centrally installed on the first bottom shell 11, and with the support structure of the shim block 115 and the support frame 116, the off-center load error and external vibration interference are reduced; the multi-slot design of the first cover 113 realizes physical isolation of the components and reduces electromagnetic interference; the aluminum alloy shell has higher strength and better thermal conductivity than the existing plastic material, which not only improves the resistance to drop and deformation, but also facilitates heat dissipation of internal components. With the surface treatment, it can enhance the waterproof and anti-fouling performance, adapt to the humid environment of coffee brewing, and extend the service life of the equipment. Attached Figure Description

[0018] Figure 1 This is one of the three-dimensional structural diagrams of the scale body when assembled in Embodiment 1 of this case.

[0019] Figure 2 This is a schematic diagram of the scale body when it is divided into parts according to Embodiment 1 of this case.

[0020] Figure 3 This is a schematic diagram of the structure in Embodiment 1 where the first and second covers are hidden when the scale body is assembled.

[0021] Figure 4 This is the second three-dimensional structural diagram of the scale body when assembled in Embodiment 1 of this case.

[0022] Figure 5 This is an exploded structural diagram of the weighing part in Embodiment 1 of this case.

[0023] Figure 6This is a schematic diagram of the structure of the first cover in Embodiment 1 of this case.

[0024] Figure 7 This is an exploded structural diagram of the display screen portion in Embodiment 1 of this case. Detailed Implementation

[0025] The following examples provide a more detailed description of the features and other related characteristics of this utility model, to facilitate understanding by those skilled in the art: Example 1

[0026] like Figures 1 to 7 A coffee scale includes a scale body 100, which includes a weighing part 101, a display screen part 102, and a detachable connection structure. The detachable connection structure of the weighing part 101 and the display screen part 102 can separate the display screen part 102 and the weighing part 101 into two parts or connect them into one. The weighing part 101 is provided with a first magnetic charging female head 1 at its bottom, and the display screen part 102 is provided with a second magnetic charging female head 2 at its top, which can be attracted together with the first magnetic charging female head 1 and electrically connected. The display screen part 102 is also provided with a third magnetic charging female head 3 for charging together when the scale is combined. In practical implementation, when the third magnetic charging female connector 3 is installed on the display part, the placement of the first magnetic charging female connector 1 and the second magnetic charging female connector 2 facilitates a conductive connection between the two when they are magnetically attached together. This allows for simultaneous conduction when the weighing part 101 and the display part 102 are combined. Furthermore, by using an external magnetic charging cable to power the third magnetic charging female connector 3, the entire assembly can be charged together. When the parts are installed separately, the external magnetic charging cable charges the weighing part 101 through the first magnetic charging female connector 1, and the external magnetic charging cable charges the display part 102 through the third magnetic charging female connector 3, enabling individual charging.

[0027] As described above, this invention utilizes a detachable connection structure to allow the weighing portion 101 and the display portion 102 of the scale body 100 to be used both together and separately, balancing integrated use with disassembly. In particular, the display portion 102 can be placed elsewhere for easy observation, offering flexibility and meeting the needs of different scenarios, thus enhancing market competitiveness. The inclusion of a first magnetic charging female connector 1, a second magnetic charging female connector 2, and a third magnetic charging female connector 3 facilitates charging upon magnetic attraction, eliminating the need for cable plugging and unplugging, making operation convenient. Furthermore, the three connectors work together to support individual and combined charging, improving battery life flexibility and preventing the overall use from being affected by a single component running out of power. The precise positioning of the magnets ensures alignment and conductivity of the charging female connectors, preventing poor contact.

[0028] like Figure 2 and Figure 7As shown, the detachable connection structure is a magnetic structure, comprising: at least one first magnetic element 103 installed at the bottom of the weighing part 101, and at least one second magnetic element 104 installed at the top of the display part 102 and magnetically attracted to the first magnetic element 103. In specific implementation, two strong circular magnets are installed at the bottom of the weighing part as the first magnetic element, and two strong magnets of opposite polarity are installed at corresponding positions at the top of the display part as the second magnetic element. When the two are close together, the magnets attract each other to achieve a stable connection; they can be separated with slight force, and after separation, the display can be attached to the surface of iron objects such as coffee machines. Thus, the magnetic connection eliminates the need for clips or screws, making assembly and disassembly convenient and reducing mechanical wear. Furthermore, the magnets are precisely positioned to ensure alignment and conductivity of the charging female connector, avoiding poor contact.

[0029] like Figure 2 and Figure 3 as well as Figure 5 As shown, the weighing unit 101 includes: a first bottom shell 11 and a first cover 12 covering the first bottom shell 11. The first bottom shell 11 is equipped with a battery 13, a weighing sensor 14, and a first control circuit board 15. The battery 13, the weighing sensor 14, and the first control circuit board 15 are electrically connected. A first magnetic charging female connector 1 is electrically connected to the battery 13 via a wire to charge the battery 13. The weighing sensor 14 is installed in the middle of the first bottom shell 11. In specific implementation, the weighing sensor detects the weight signal and transmits it to the first control circuit board. After processing, the first control circuit board sends the signal to the display screen via a wireless module. The first magnetic charging female connector is connected to the battery via a wire, and an external charger can charge the battery after it is attracted. Thus, the independent installation of the first battery, the weighing sensor, and the first control circuit board facilitates individual maintenance and replacement; moreover, the independent battery design avoids power outages in the weighing unit when disassembled, extending the single-use time. In addition, the centrally mounted load cell position places the sensor at the center of the weighing pan's force distribution. This ensures that the force is transmitted to the sensor more evenly, regardless of where the coffee maker is placed on the pan, reducing measurement errors caused by off-center loading and improving the stability and accuracy of the weight reading.

[0030] like Figure 5As shown, the first base shell 11 includes: a first base plate 111, a first mounting partition 112 stacked on the first base plate 111, and a first cover 113 covering the first base plate 111. The top outer surface of the first cover 113 is recessed with a first mounting groove 1131 for mounting a battery 13, a second mounting groove 1132 for mounting a weighing sensor 14, a third mounting groove 1133 for mounting a first control circuit board 15, and a fourth mounting groove 1134 for mounting a first magnetic charging female connector 1. The bottom surface of the first cover 113 has a first opening 114 through which the first magnetic charging female connector 1 partially protrudes. In this way, the multiple mounting grooves separate the components, achieving physical isolation, reducing electromagnetic interference, and reducing the influence of batteries and other components not being mounted on the weighing sensor; moreover, the dedicated mounting grooves provide precise positioning, avoiding measurement errors caused by component loosening; at the same time, the first magnetic charging female connector 1 is mounted through the first opening 114 and is partially exposed, ensuring reliable contact during magnetic docking.

[0031] like Figure 5 As shown, a shim 115 is installed at a corresponding position below the second mounting groove 1132 on the first mounting partition 112, and a support frame 116 is installed through the shim 115. The support frame 116 is connected to the first cover 113 by screws and is located below the load cell 14. In this way, the shim isolates the sensor from the base plate, reducing the direct transmission of external impacts such as table vibration and collisions to the sensor, reducing measurement data fluctuations caused by vibration, and improving weighing stability. The support frame is directly installed below the load cell and rigidly connected to the first cover by screws, forming a rigid support frame for the sensor and providing support.

[0032] like Figure 5 As shown, the first mounting partition 112 has a central protrusion forming a convex surface 1121, and a first hollow opening 1122 is formed on the convex surface 1121. The shim block 115 is mounted on the first hollow opening 1122, and the support frame 116 has a second hollow opening 1161 in the middle. In this way, the first hollow opening 1122 not only reduces the amount of material used, but also plays a certain role in heat dissipation, preventing the load cell from overheating.

[0033] The convex surface 1121 provides an air gap between the first mounting partition 112 and the first base plate 111, which can buffer vibration and reduce the impact of external impact on the sensor; and can also further dissipate heat.

[0034] like Figure 4 and Figure 5 as well as Figure 6As shown, the inner top surface of the first cover 113 is provided with multiple first reinforcing ribs 1135, and the first base plate 111 is equipped with multiple second reinforcing ribs 1111. The bottom surface of the first base plate 111 is evenly provided with multiple protective pads 1112 and through grooves 1113 with screw holes. In this way, the reinforcing ribs improve the structural strength of the shell, enhancing its resistance to drops and deformation; the protective pads prevent the scale body from directly rubbing against the table, reducing noise and wear and providing a cushioning effect; the through groove design facilitates the disassembly and assembly of the scale body.

[0035] like Figure 1 and Figure 7 As shown, the first magnetic charging female connector 1, the second magnetic charging female connector 2, and the third magnetic charging female connector 3 each include: a mounting base 41, multiple charging pins 42 passing through the mounting base 41, and magnetic blocks 43 installed at both ends of the mounting base 41. In specific implementations, the mounting base 41 is a plastic mounting base with two copper charging pins passing through it, each end of which is embedded with a small magnet. When the two female connectors are close together, the magnets attract and align them, allowing the charging pins to make precise contact and achieve electrical connection. Thus, the magnetic blocks 43 further assist in positioning, preventing misalignment and damage to the charging pins and extending the interface lifespan; and by fixing the charging pins in the mounting base, poor contact caused by loosening is prevented.

[0036] As a preferred implementation method, such as Figure 3 and Figure 7 As shown, the display screen portion 102 includes: a second bottom shell 21 and a second cover 22 covering the second bottom shell 21. The second bottom shell 21 is sequentially equipped with a second battery 23, a second control circuit board 24, and a display screen 25 from bottom to bottom. The second bottom shell 21 is equipped with a second magnetic charging female connector 2 at the top and a third magnetic charging female connector 3 at the bottom.

[0037] As described above, the display screen in this design forms a sealed protective space through the second bottom shell and the second cover. Combined with the layered layout of the second battery, second control circuit board, and display screen installed sequentially from bottom to top, this design not only allows the battery to sink for a stable center of gravity, improving its drop and tipping resistance when held or magnetically placed, but also shortens the signal transmission path between the circuit board and the display screen, reducing latency and electromagnetic interference, and ensuring real-time and accurate data display. The second magnetic charging female connector at the top enables linked charging and signal conduction with the weighing component when the scale is assembled, while the third magnetic charging female connector at the bottom meets the independent charging needs when disassembled, solving the pain point of battery life flexibility and perfectly adapting to the dual scenarios of disassembling and assembling the coffee scale.

[0038] like Figure 6As shown, in specific implementation, the housings of the weighing part 101 and the display screen part 102 are made of aluminum alloy. Aluminum alloy has higher strength than plastic, offering superior resistance to drops and deformation, extending the equipment's lifespan. Furthermore, the good thermal conductivity of metal facilitates heat dissipation from internal components, preventing high temperatures from affecting accuracy. Additionally, surface treatment of aluminum alloy improves its waterproof and stain-resistant properties, making it suitable for the humid environment of coffee brewing. In specific implementation, the entire surface of the coffee scale and its joints are waterproofed. Since the display screen part forms a sealed protective space through the second bottom shell and the second cover, combined with the design of the aluminum alloy housing forming a waterproof sealed cavity, a nano-waterproof coating can be applied to the inner wall of the mounting groove. Simultaneously, the weighing sensor 14 can also be waterproofed, for example, by using epoxy resin potting for full encapsulation or applying a waterproof layer, achieving complete waterproof sealing of the sensor and ensuring that no water comes into contact with the core components during immersion. This allows the coffee scale to meet the IP7 waterproof rating requirement. Example 2

[0039] like Figure 7 As shown, the difference between Embodiment 2 and Embodiment 1 is that the third magnetic charging female connector 3 is disposed on the weighing part 101. In specific implementation, the first magnetic charging female connector 1 and the second magnetic charging female connector 2 are also disposed to facilitate conductive connection when they are magnetically attached together. This allows for simultaneous conduction when the weighing part 101 and the display screen part 102 are combined. When the third magnetic charging female connector 3 is powered by an external magnetic charging cable, the entire assembly is charged simultaneously. When the components are disposed separately, the external magnetic charging cable charges the weighing part 101 individually via the third magnetic charging female connector 3, and the external magnetic charging cable charges the weighing part 101 individually via the second magnetic charging female connector 1.

[0040] Thus, in Embodiment 2, the third magnetic charging female head 3 is moved to the weighing part 101, which can be used in a coffee scale with the weighing part fixed and the display part flexibly disassembled, so as to adapt to different usage scenarios.

[0041] As stated above, this case protects a coffee scale, and all technical solutions that are the same as or similar to this case should be considered to fall within the scope of protection of this case.

Claims

1. A coffee scale, characterized in that, The weighing system includes a weighing body (100), which includes a weighing part (101), a display screen part (102), and a detachable connection structure. The detachable connection structure of the weighing part (101) and the display screen part (102) can separate the display screen part (102) and the weighing part (101) into two parts or connect them into one. The weighing part (101) is provided with a first magnetic charging female head (1) at its bottom, and the display screen part (102) is provided with a second magnetic charging female head (2) at its top, which can be attracted together with the first magnetic charging female head (1) and achieve electrical connection. The weighing part (101) or the display screen part (102) is also provided with a third magnetic charging female head (3) for charging together when they are combined.

2. The coffee scale according to claim 1, characterized in that, The detachable connection structure is a magnetic structure, which includes: at least one first magnetic member (103) installed at the bottom of the weighing part (101) and at least one second magnetic member (104) installed at the top of the display part (102) and magnetically attracted to the first magnetic member (103).

3. The coffee scale according to claim 2, characterized in that, The weighing part (101) includes: a first bottom shell (11) and a first cover (12) covering the first bottom shell (11). The first bottom shell (11) is equipped with a battery (13), a weighing sensor (14) and a first control circuit board (15). The battery (13) and the weighing sensor (14) are electrically connected to the first control circuit board (15). A first magnetic charging female head (1) is electrically connected to the battery (13) through a wire. The weighing sensor (14) is installed in the middle of the first bottom shell (11).

4. The coffee scale according to claim 3, characterized in that, The first bottom shell (11) includes: a first bottom plate (111), a first mounting partition (112) stacked on the first bottom plate (111), and a first cover (113) covering the first bottom plate (111). The top outer surface of the first cover (113) is recessed with a first mounting groove (1131) for mounting a battery (13), a second mounting groove (1132) for mounting a weighing sensor (14), a third mounting groove (1133) for mounting a first control circuit board (15), and a fourth mounting groove (1134) for mounting a first magnetic charging female head (1). The bottom surface of the first cover (113) is provided with a first opening (114) through which the first magnetic charging female head (1) partially passes.

5. The coffee scale according to claim 4, characterized in that, The first mounting partition (112) has a shim (115) installed at the corresponding position below the second mounting groove (1132), and a support frame (116) is installed through the shim (115). The support frame (116) is connected to the first cover (113) by screws and is located below the weighing sensor (14).

6. The coffee scale according to claim 5, characterized in that, The first mounting partition (112) has a central protrusion forming a convex surface (1121) and a first hollow opening (1122) is provided on the convex surface (1121). The shim block (115) is mounted on the first hollow opening (1122), and the support frame (116) has a second hollow opening (1161) in the middle.

7. The coffee scale according to any one of claims 4-6, characterized in that, The first cover (113) has multiple first reinforcing ribs (1135) on its top inner surface, and multiple second reinforcing ribs (1111) are installed on the first base plate (111). Multiple protective pads (1112) and through slots (1113) with screw holes are evenly arranged on the bottom surface of the first base plate (111).

8. The coffee scale according to any one of claims 1-3, characterized in that, The first magnetic charging female connector (1), the second magnetic charging female connector (2), and the third magnetic charging female connector (3) each include: a mounting base (41), multiple charging pins (42) passing through the mounting base (41), and magnetic blocks (43) installed at the left and right ends of the mounting base (41).

9. The coffee scale according to claim 1, characterized in that, The display screen portion (102) includes: a second bottom shell (21) and a second cover (22) covering the second bottom shell (21). The second bottom shell (21) is provided with a second battery (23), a second control circuit board (24) and a display screen (25) from bottom to bottom. The second bottom shell (21) has a second port (211) and a third port (212) at the top and bottom respectively. The second port (211) is provided with a second magnetic charging female connector (2). The third port (212) is provided with a third magnetic charging female connector (3).

10. The coffee scale according to claim 1, characterized in that, The housings of the weighing part (101) and the display part (102) are made of aluminum alloy.

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