Grinding equipment

By designing a combination of annular electrical connectors and spring probe conductive plates on the power supply base and electric grinder, the problem of charging alignment for electric grinders is solved, enabling a flexible and convenient charging method and improving the reliability and service life of the equipment.

CN223504086UActive Publication Date: 2025-11-04ZHUHAI CHEER TECH CO LTD
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Patent Information

Application Number
CN202422821534.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-19
Publication Date
2025-11-04
Estimated Expiration
2034-11-19

AI Technical Summary

Technical Problem

The current charging method for electric grinders requires precise alignment of the charging contacts, resulting in a poor user experience. Improper placement can easily lead to mechanical wear and electrical failures, and there is also a risk of short circuits.

Method used

The electrical connections for the power supply base and the electric grinder are designed with a circular and concentric layout to ensure reliable electrical contact when placed at multiple angles. The connection stability is improved by combining spring probes and conductive plates, and a grinder receiving groove is provided to enhance stability and waterproof performance.

Benefits of technology

It improves charging flexibility and convenience, reduces mechanical wear and electrical failures, lowers the risk of short circuits, extends equipment life, and enhances user experience and reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides grinding equipment which comprises a power supply base and an electric grinder, the power supply base comprises a power supply part, a first electrical connecting piece and a second electrical connecting piece, the first electrical connecting piece and the second electrical connecting piece are arranged on the power supply part at intervals, the first electrical connecting piece is annular, and the second electrical connecting piece is annular. The second electrical connecting piece is located at the circle center of the first electrical connecting piece. The electric grinder comprises a third electrical connecting piece and a fourth electrical connecting piece, the third electrical connecting piece and the fourth electrical connecting piece are arranged at an interval, and under the condition that the electric grinder is placed on the power supply base, the third electrical connecting piece is electrically contacted with the first electrical connecting piece, and the fourth electrical connecting piece is electrically contacted with the second electrical connecting piece; according to the electric grinder, a user does not need to worry about the alignment problem, charging can be started only by placing the electric grinder on the base, the use experience of the user is improved, and the flexibility and convenience of charging are greatly improved.
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Description

Technical Field

[0001] This utility model relates to the field of grinding technology, and more specifically, to a grinding device. Background Technology

[0002] Currently, electric grinders on the market are charged by placing them on a power base, with the charging contacts of the electric grinder making contact with the charging contacts of the power base to achieve charging.

[0003] Currently, electric grinders on the market are charged by placing them on a power base, with the charging contacts of the electric grinder making contact with the charging contacts of the power base to achieve charging. Utility Model Content

[0004] This utility model provides a grinding device to solve the above-mentioned technical problems.

[0005] The present invention achieves the above objectives through the following technical solutions.

[0006] This utility model provides a grinding device, which includes a power supply base and an electric grinder. The power supply base includes a power supply section, a first electrical connector, and a second electrical connector. The first and second electrical connectors are spaced apart from each other on the power supply section. The first electrical connector is annular, and the second electrical connector is located at the center of the first electrical connector. The electric grinder includes a third electrical connector and a fourth electrical connector, which are spaced apart. When the electric grinder is placed on the power supply base, the third electrical connector is in electrical contact with the first electrical connector, and the fourth electrical connector is in electrical contact with the second electrical connector.

[0007] In some embodiments, the power supply base also includes a base housing, the base housing having a grinder receiving groove, the power supply part being located in the grinder receiving groove, and the end of the electric grinder being detachably disposed in the grinder receiving groove.

[0008] In some embodiments, the inner side of the grinder receiving groove and the outer peripheral surface of the end of the electric grinder are rotating surfaces; the second electrical connector passes through the rotation axis of the inner side of the grinder receiving groove, and the first electrical connector deviates from the rotation axis of the inner side of the grinder receiving groove; the fourth electrical connector passes through the rotation axis of the outer peripheral surface of the end of the electric grinder, and the third electrical connector deviates from the rotation axis of the outer peripheral surface of the end of the electric grinder.

[0009] In some embodiments, the power supply part protrudes from the bottom surface of the grinder receiving groove, the end of the electric grinder is provided with a clearance groove, and the third electrical connector and the fourth electrical connector are both located in the clearance groove. When the electric grinder is placed on the power supply base, the power supply part is embedded in the clearance groove.

[0010] In some embodiments, one of the first electrical connector and the third electrical connector is a spring probe and the other is a conductive sheet.

[0011] In some embodiments, one of the second electrical connector and the fourth electrical connector is a spring probe and the other is a conductive sheet.

[0012] In some embodiments, the first electrical connector and the second electrical connector are of the same type, or the second electrical connector and the fourth electrical connector are of the same type.

[0013] In some embodiments, the first and second electrical connectors are conductive sheets, and the third and fourth electrical connectors are spring probes.

[0014] In some embodiments, the power supply part is provided with a first mounting groove, which is annular in shape, and the first electrical connector is installed in the first mounting groove.

[0015] In some embodiments, the power supply section is further provided with a second mounting slot, which is spaced apart from the first mounting slot. The second mounting slot is located at the center of the first mounting slot, and the second electrical connector is installed in the second mounting slot.

[0016] In any of the above embodiments of this utility model, the power supply base of the grinding device includes a power supply section, a first electrical connector, and a second electrical connector. The first and second electrical connectors are spaced apart at the power supply section. The first electrical connector is annular, and the second electrical connector is located at the center of the first electrical connector. The electric grinder includes a third electrical connector and a fourth electrical connector, which are spaced apart. When the electric grinder is placed on the power supply base, the third electrical connector is in electrical contact with the first electrical connector, and the fourth electrical connector is in electrical contact with the second electrical connector. Thus, because the first electrical connector is annular and the fourth electrical connector is located at the center, this design helps users avoid overly precise alignment when placing the electric grinder. Even when the electric grinder is placed on the power supply base at various angles or orientations (e.g., left, right, front, rear, etc.), electrical contact between the electrical connectors can be achieved. Users do not need to worry about alignment issues; they only need to place the electric grinder on the base to start charging, improving the user experience and greatly enhancing the flexibility and convenience of charging. Because the design reduces the need for alignment and adjustment, it helps reduce mechanical wear and electrical failures caused by improper placement, thus extending the equipment's lifespan and improving its overall reliability. Furthermore, the spacing between the first and second electrical connectors creates physical isolation, reducing the possibility of electrical conduction due to water accumulation between them, thereby lowering the risk of short circuits. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the grinding equipment provided in an embodiment of the present invention is shown.

[0019] Figure 2 It shows Figure 1 A partial structural schematic diagram of the grinding equipment provided in the implementation method.

[0020] Figure 3 It shows Figure 2 A cross-sectional schematic diagram of the grinding equipment provided in the embodiment.

[0021] Figure 4 It shows Figure 1 A schematic diagram of the structure of the electric grinder in the grinding equipment provided in the embodiment. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments.

[0024] Please see Figure 1 This utility model provides a grinding device 100, which includes a power supply base 110 and an electric grinder 120. The electric grinder 120 is detachably mounted on the power supply base 110. For example, when the electric grinder 120 needs to be charged, it can be mounted on the power supply base 110 so that the power supply base 110 can charge the electric grinder 120. Alternatively, when the electric grinder 120 is depleted of power, it can be detached from the power supply base 110 for use.

[0025] Please see Figures 2 to 3 The power supply base 110 includes a power supply section 111, a first electrical connector 112, and a second electrical connector 113. The first electrical connector 112 and the second electrical connector 113 are spaced apart from each other in the power supply section 111. The first electrical connector 112 is annular, and the second electrical connector 113 is located at the center of the first electrical connector 112. The electric grinder 120 includes a third electrical connector 121 and a fourth electrical connector 122. The third electrical connector 121 and the fourth electrical connector 122 are spaced apart. When the electric grinder 120 is placed on the power supply base 110, the third electrical connector 121 is in electrical contact with the first electrical connector 112, and the fourth electrical connector 122 is in electrical contact with the second electrical connector 113.

[0026] Thus, because the first electrical connector 112 is annular and the fourth electrical connector 122 is located at the center, this design helps users avoid overly precise alignment when placing the electric grinder 120. Even when the electric grinder 120 is placed on the power base 110 at various angles or orientations (e.g., left, right, front, rear), electrical contact between the electrical connectors can be achieved. Users do not need to worry about alignment issues; they can simply place the electric grinder 120 on the base to begin charging, improving the user experience and greatly enhancing charging flexibility and convenience. The reduced need for alignment and adjustment helps decrease mechanical wear and electrical faults caused by improper placement, extending the device's lifespan and improving overall reliability. Furthermore, the spacing between the first electrical connector 112 and the second electrical connector 113 provides physical isolation, reducing the possibility of electrical conduction due to water accumulation between them, thereby lowering the risk of short circuits.

[0027] In some embodiments, the power supply base 110 further includes a base housing 114, the base housing 114 having a grinder receiving groove 1141, the power supply part 111 being located in the grinder receiving groove 1141, and the end of the electric grinder 120 being detachably disposed in the grinder receiving groove 1141.

[0028] Thus, the design of the grinder housing 1141 helps the electric grinder 120 to be placed more stably, reducing movement caused by external vibration or collision, helping to provide a more stable charging environment, improving charging reliability, and the grinder housing 1141 helps to optimize space utilization, improve the overall integration of the equipment, make the whole system more compact and integrated, and facilitate user management and storage.

[0029] In addition, the end of the electric grinder 120 is detachably disposed in the grinder receiving slot 1141. This design helps to simplify the user's operation steps. The user can simply insert or pull the electric grinder 120 into or out of the grinder receiving slot 1141 to charge or use it, which improves the convenience of operation.

[0030] In some embodiments, the inner surface 1142 of the grinder receiving groove 1141 and the outer peripheral surface 123 of the end of the electric grinder 120 are surfaces of rotation; the second electrical connector 113 passes through the axis of rotation of the inner surface 1142 of the grinder receiving groove 1141, and the first electrical connector 112 is offset from the axis of rotation of the inner surface 1142 of the grinder receiving groove 1141; the fourth electrical connector 122 passes through the axis of rotation of the outer peripheral surface 123 of the end of the electric grinder 120, and the third electrical connector 121 is offset from the axis of rotation of the outer peripheral surface 123 of the end of the electric grinder 120.

[0031] Thus, the rotating surface design helps simplify the operation of placing the electric grinder 120 on the power base 110 for charging. Even without additional alignment, it ensures that the electric grinder 120 is accurately inserted into the grinder receiving slot 1141 and that electrical contact between the electrical connectors is maintained. This design helps simplify the user's operation steps. The user does not need to align precisely; they can simply insert the electric grinder 120 into the receiving slot to charge, thus improving the ease of use.

[0032] In some embodiments, the power supply part 111 protrudes from the bottom surface of the grinder receiving groove 1141, and the end of the electric grinder 120 is provided with a clearance groove 124. The third electrical connector 121 and the fourth electrical connector 122 are both located in the clearance groove 124. When the electric grinder 120 is placed on the power supply base 110, the power supply part 111 is embedded in the clearance groove 124.

[0033] Thus, since the power supply part 111 protrudes from the bottom surface of the grinder receiving tank 1141, this design helps to enhance the reliability of the grinding equipment 100 in humid environments, especially in environments where moisture is easily generated, such as kitchens. Even if a small amount of water splashes into the grinder receiving tank 1141, the protruding power supply part 111 can effectively prevent water from contacting the first electrical connector 112 and the second electrical connector 113, which helps to protect the safety of the circuit and improve the waterproof performance of the grinding equipment 100.

[0034] In addition, the clearance groove 124 provides a clear positioning point for the power supply part 111. By inserting the power supply part 111 into the clearance groove 124, it helps to increase the mechanical bonding force between the electric grinder 120 and the power supply base 110, and helps to improve the contact accuracy between electrical connectors. This allows the user to simply place the electric grinder 120 on the power supply base 110 to achieve automatic alignment and power supply. It also helps to reduce the movement or shaking of the device during charging, thereby helping to maintain a stable and reliable electrical connection.

[0035] In some embodiments, one of the first electrical connector 112 and the third electrical connector 121 is a spring probe, and the other is a conductive plate. In some embodiments, one of the second electrical connector 113 and the fourth electrical connector 122 is a spring probe, and the other is a conductive plate. Thus, using the combination of a spring probe and a conductive plate ensures tight contact between the electrical connectors when the electric grinder 120 is installed on the power supply base 110, which helps improve the stability and reliability of the connection and reduces failures caused by poor contact. The spring probe's design provides a degree of flexibility, reducing wear on the conductive plate during repeated insertion and removal, thus extending the service life of the electrical connector. The spring probe's elasticity can adapt to conductive plates of different sizes and shapes, improving the connector's versatility and adaptability, making it suitable for various devices and applications. The combined design of the spring probe and the conductive plate makes connecting and disconnecting the electric grinder 120 and the power supply base 110 faster and more convenient, improving user efficiency and reducing short circuits or electrical sparks caused by poor contact, thereby providing a safer operating environment during charging. In addition, the combination design of the spring probe and conductive sheet is relatively simple, which helps to simplify the circuit design of the base and grinder, reduce manufacturing costs and maintenance difficulty.

[0036] In some embodiments, the first electrical connector 112 and the second electrical connector 113 are conductive plates, and the third electrical connector 121 and the fourth electrical connector 122 are spring probes. Using the same type of electrical connector simplifies the assembly process, reduces the possibility of assembly errors, and helps improve assembly efficiency and production speed. This helps simplify the manufacturing process of the electric grinder 120 and the power supply base 110, reduces the need for different types of parts, and thus lowers production costs.

[0037] In some embodiments, the first electrical connector 112 and the second electrical connector 113 are the same type of electrical connector, or the second electrical connector 113 and the fourth electrical connector 122 are the same type of electrical connector.

[0038] In some embodiments, the power supply unit 111 is provided with a first mounting groove 1111, which is annular in shape, and the first electrical connector 112 is mounted in the first mounting groove 1111. Thus, the first mounting groove 1111 ensures the accurate positioning of the first electrical connector 112 during installation, reducing poor contact problems caused by installation deviations. The first mounting groove 1111 provides good support for the first electrical connector 112, reducing loosening caused by external vibrations or collisions, contributing to a more stable electrical connection and enhancing the structural stability of the electrical connector.

[0039] In some embodiments, the power supply unit 111 is further provided with a second mounting groove 1112, which is spaced apart from the first mounting groove 1111. The second mounting groove 1112 is located at the center of the first mounting groove 1111, and the second electrical connector 113 is installed in the second mounting groove 1112. Thus, the second mounting groove 1112 ensures the accurate positioning of the second electrical connector 113 during installation, reducing contact problems caused by installation deviations. The second mounting groove 1112 provides good support for the second electrical connector 113, reducing loosening caused by external vibrations or collisions, contributing to a more stable electrical connection and enhancing the structural stability of the electrical connector.

[0040] In some embodiments, the second mounting groove 1112 may be generally circular, elliptical, triangular, square, polygonal, irregular, or other shapes.

[0041] In this utility model, unless otherwise explicitly specified or limited, the terms "installation," "connection," and "fixation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can be a mechanical connection or an electrical connection; they can be a direct connection or an indirect connection through an intermediate medium; they can be a connection within two components, or merely surface contact, or a surface contact connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] Furthermore, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as referring to specific or particular structures. The terms "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this utility model, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate different embodiments or examples described in this utility model, as well as the features of different embodiments or examples.

[0043] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A grinding device, characterized in that, include: A power supply base, comprising a power supply section, a first electrical connector, and a second electrical connector, wherein the first electrical connector and the second electrical connector are spaced apart at the power supply section, the first electrical connector being annular in shape, and the second electrical connector being located at the center of the first electrical connector; and An electric grinder includes a third electrical connector and a fourth electrical connector, which are spaced apart. When the electric grinder is placed on the power supply base, the third electrical connector is in electrical contact with the first electrical connector, and the fourth electrical connector is in electrical contact with the second electrical connector.

2. The grinding equipment according to claim 1, characterized in that, The power supply base also includes a base housing, which has a grinder receiving groove. The power supply part is located in the grinder receiving groove, and the end of the electric grinder is detachably disposed in the grinder receiving groove.

3. The grinding equipment according to claim 2, characterized in that, The inner side of the grinder receiving groove and the outer peripheral surface of the end of the electric grinder are rotating surfaces; the second electrical connector passes through the rotation axis of the inner side of the grinder receiving groove, and the first electrical connector deviates from the rotation axis of the inner side of the grinder receiving groove; the fourth electrical connector passes through the rotation axis of the outer peripheral surface of the end of the electric grinder, and the third electrical connector deviates from the rotation axis of the outer peripheral surface of the end of the electric grinder.

4. The grinding equipment according to claim 2, characterized in that, The power supply part protrudes from the bottom surface of the grinder receiving groove. The end of the electric grinder is provided with a clearance groove. The third electrical connector and the fourth electrical connector are both located in the clearance groove. When the electric grinder is placed on the power supply base, the power supply part is embedded in the clearance groove.

5. The grinding equipment according to claim 1, characterized in that, One of the first electrical connector and the third electrical connector is a spring probe, and the other is a conductive sheet.

6. The grinding equipment according to claim 5, characterized in that, One of the second electrical connector and the fourth electrical connector is a spring probe, and the other is a conductive sheet.

7. The grinding equipment according to claim 6, characterized in that, The first electrical connector and the second electrical connector are of the same type, or the third electrical connector and the fourth electrical connector are of the same type.

8. The grinding equipment according to claim 6, characterized in that, The first and second electrical connectors are conductive sheets, and the third and fourth electrical connectors are spring probes.

9. The grinding equipment according to claim 1, characterized in that, The power supply unit is provided with a first mounting groove, which is annular in shape, and the first electrical connector is installed in the first mounting groove.

10. The grinding equipment according to claim 9, characterized in that, The power supply unit is also provided with a second mounting slot, which is spaced apart from the first mounting slot. The second mounting slot is located at the center of the first mounting slot, and the second electrical connector is installed in the second mounting slot.