Electric locking device

Abstract

The utility model provides an electric locking device. The electric locking device comprises a shell, a driving assembly, a main shaft, a screwdriver and a conductive sleeve. The driving assembly is arranged in the shell. The main shaft is arranged in the shell and provided with a first end and a second end, wherein the first end is connected with the driving assembly. The screw driver is connected with the second end of the main shaft and comprises an air nozzle, and the air nozzle is used for adsorbing a screw. The conductive sleeve is arranged in the shell and arranged on the main shaft in a sleeving mode, the interior of the shell is divided into a first containing space and a second containing space through the conductive sleeve, the first containing space and the second containing space are in non-fluid communication, and the conductive sleeve is electrically connected with the screwdriver, the main shaft and the shell.

Description

Technical Field

[0001] This application relates to an electric locking device, and more particularly to an electric locking device that is antistatic and has high airtightness. Background Technology

[0002] Assembly tools such as electrically operated fastening devices are widely used in the assembly of electronic devices. To enable more stable operation, some existing electrically operated fastening devices are equipped with suction components to pick up screws. However, when the airtightness of the electric fastening device itself is poor, the efficiency of the suction component decreases, thus reducing the operational stability of the device. Furthermore, for delicate electronic devices, electrostatic discharge (ESD) damage is common during assembly using electrically operated fastening devices. Therefore, while existing electrically operated fastening devices have gradually met their intended uses, they are not perfect in every aspect. Several problems regarding electrically operated fastening devices still need to be overcome. Utility Model Content

[0003] In some embodiments, an electrically operated fastening device is provided, comprising a housing, a drive assembly, a spindle, a screwdriver, and a conductive sleeve. The drive assembly is disposed inside the housing. The spindle is disposed inside the housing and has a first end and a second end, wherein the first end is connected to the drive assembly. The screwdriver is connected to the second end of the spindle, wherein the screwdriver includes an air nozzle for adsorbing screws. The conductive sleeve is disposed in the housing and sleeved on the spindle, wherein the conductive sleeve separates the interior of the housing into a first accommodating space and a second accommodating space that are not fluidly connected, and the conductive sleeve is electrically connected to the screwdriver, the spindle, and the housing.

[0004] In one embodiment, the conductive sleeve and the main shaft are in a sliding fit.

[0005] In one embodiment, the conductive sleeve and the housing are in a sliding fit.

[0006] In one embodiment, the inner surface of the conductive sleeve has a connecting groove, and the connecting groove corresponds to the spindle.

[0007] In one embodiment, the connection groove is filled with a sealing fluid.

[0008] In one embodiment, the conductive sleeve is a phosphor bronze sleeve.

[0009] In one embodiment, an air extraction component is further included, which is disposed on the housing and is in fluid communication with the air nozzle through the first accommodating space.

[0010] In one embodiment, a speed reducer assembly is further included, and the speed reducer assembly is disposed between the first end of the spindle and the drive assembly.

[0011] In one embodiment, a force detection component is further included, and the force detection component is disposed between the first end of the spindle and the reducer assembly.

[0012] In one embodiment, the force detection component is detachably connected to the reducer assembly.

[0013] The electrically operated locking device of this application can be used to assemble various types of devices. To make the features and advantages of this application more apparent and understandable, various embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0014] The following detailed description, accompanied by accompanying drawings, will provide a better understanding of the embodiments of this application. It is worth noting that, according to industry standard practice, some features may not be drawn to scale. In fact, for clarity of description, the dimensions of different features may be increased or decreased.

[0015] Figure 1 This is a perspective view of an electric locking device according to some embodiments of this application.

[0016] Figure 2 This is a cross-sectional schematic diagram of an electric locking device according to some embodiments of this application.

[0017] Figure 3 This is an exploded schematic diagram of an electrically operated locking device according to some embodiments of this application.

[0018] Figure 4 This is a schematic diagram showing the connection between the spindle and the conductive sleeve according to some embodiments of this application.

[0019] Figure 5 This is a schematic diagram showing the connection between the force detection component and the speed reducer component according to some embodiments of this application.

[0020] Explanation of reference numerals in the attached figures

[0021] 1: Electric locking device

[0022] 10: Shell,

[0023] 101: Outer shell,

[0024] 102: Outer shell,

[0025] 103: Grip section,

[0026] 11: Screwdriver

[0027] 11A: Air valve,

[0028] 12: Spindle

[0029] 12A: Second end,

[0030] 12B: First end,

[0031] 13: Conductive sleeve,

[0032] 131: First sleeve,

[0033] 131A: Connecting trench,

[0034] 132: Second sleeve,

[0035] 132A: Connecting trench,

[0036] 14: Force detection component

[0037] 15: Gearbox assembly,

[0038] 16: Driver components

[0039] A: Axis,

[0040] O1: First opening

[0041] O2: Second opening. Detailed Implementation

[0042] The following provides many different embodiments or examples for implementing the provided apparatus. Specific examples of the components and their configurations are described below to simplify the embodiments of this application, and are not intended to limit the scope of this application. For example, if the description mentions that a first component is formed on a second component, it may include embodiments where the first and second components are in direct contact, or embodiments where an additional component is formed between the first and second components, so that the first and second components are not in direct contact. Furthermore, component symbols and / or characters may be repeated in different embodiments or examples in this application. Such repetition is for brevity and clarity, and is not intended to indicate a relationship between the different embodiments and / or examples discussed.

[0043] In some embodiments of this application, terms such as "setup," "connection," and similar terms, unless specifically defined, may refer to two components in direct contact, or to two components not in direct contact, with an additional connecting component located between the two structures. Terms such as "setup" and "connection" may also include cases where both structures are movable or both structures are fixed.

[0044] In addition, the terms "first," "second," and similar terms mentioned in this specification or the claims are used to name different components or to distinguish different embodiments or scopes, and are not used to limit the upper or lower limit of the number of components, nor to limit the manufacturing order or the order in which the components are installed.

[0045] In this text, the terms "approximately," "about," and "substantially" generally indicate that a given value or range is within 10%, 5%, 3%, 2%, 1%, or 0.5%. The given quantities are approximate, meaning that the terms "approximately," "about," or "substantially" are implied even without specific mention. The phrase "the range is between the first and second values" indicates that the range includes the first value, the second value, and other values ​​in between. Furthermore, any two values ​​or directions used for comparison may have a certain degree of error. If the first value equals the second value, it implies an error of approximately 10%, 5%, 3%, 2%, 1%, or 0.5% between them. If the first direction is perpendicular to the second direction, the angle between the first and second directions may be between 80 and 100 degrees. If the first direction is parallel to the second direction, then the angle between the first direction and the second direction can be between 0 degrees and 10 degrees.

[0046] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art. It is understood that such terms, for example, as defined in commonly used dictionaries, should be interpreted as having a meaning consistent with the relevant art and the background or context of this application, and should not be interpreted in an idealized or overly formal manner, unless specifically defined in the embodiments of this application.

[0047] It should be understood that, for clarity, some components of the apparatus are omitted in the drawings, and only some components are schematically shown. In some embodiments, additional components may be added to the apparatus described below. In other embodiments, some components of the apparatus described below may be replaced or omitted. It should be understood that, in some embodiments, additional operating steps may be provided before, during, and / or after the method of manufacturing the apparatus. In some embodiments, some operating steps may be replaced or omitted, and the order of some operating steps is interchangeable.

[0048] In some existing electric screw fastening devices, an additional air extraction component is used to pick up screws, allowing users to operate the device more stably. Specifically, the air extraction component is fluidly connected to the interior of the housing and further fluidly connected to the air nozzle on the screwdriver, thus achieving the function of screw suction. However, insufficient airtightness inside the housing may prevent the air extraction component from securely picking up the screw. Furthermore, during the screw fastening of electronic devices, static electricity from the user or the surrounding environment may be transferred to the electronic device via the screwdriver. For delicate electronic devices, even a small amount of static electricity can damage components. Therefore, this application incorporates a highly airtight conductive sleeve in the electric screw fastening device, and through this conductive sleeve, which slides and is electrically connected to the housing, solves some of the aforementioned problems.

[0049] In this application, an electrically operated fastening device is used to fasten screws onto electronic devices. Screws can be categorized by the shape of the screw head, including flat-head screws, round-head screws, cylindrical-head screws, or other suitable screws, but this application is not limited to these. Screws can be categorized by the shape of the groove, including slotted screws, Phillips head screws, hexagonal head screws, octagonal head screws, double hexagonal head screws, snake-eye head screws, star-shaped head screws, or other suitable screws, but this application is not limited to these. Screws can be categorized by material, including carbon steel screws, stainless steel screws, copper screws, or other suitable screws, but this application is not limited to these. Furthermore, electronic devices can include various electronic components, such as circuit boards, display devices, tools, or other suitable screws, but this application is not limited to these. Of course, the types of screws and electronic devices described above are merely examples and are not intended to limit this application.

[0050] Reference Figures 1 to 3 This document illustrates, according to some embodiments of the present application, a perspective view, a cross-sectional view, and an exploded view of an electric locking device. For example... Figures 1 to 3 As shown, the electric locking device 1 includes a housing 10, a screwdriver 11, a spindle 12, a conductive sleeve 13, a force detection assembly 14, a reducer assembly 15, and a drive assembly 16. Notably, in this application, the screwdriver 11, spindle 12, conductive sleeve 13, and housing 10 are electrically connected to each other. This allows static electricity from the user, the surrounding environment, or the object to be locked (e.g., an electronic device) to be conducted away from the housing 101, preventing it from traveling towards the interior of the object (i.e., the electronic device). This avoids these static charges interfering with or impacting the object to be locked, thus preventing damage.

[0051] like Figure 3As shown, a housing 10 is fitted over a screwdriver 11, a spindle 12, a conductive sleeve 13, a force detection assembly 14, a speed reducer assembly 15, and a drive assembly 16 arranged sequentially along an axis A. Specifically, the housing 10 is used to prevent the internal components from being contaminated by external moisture or dirt, and to prevent these components from being damaged by impact. In some embodiments, the housing 10 may include an outer shell 101, an outer shell 102, and a grip 103, and these components are used to protect different components or different parts of the same component.

[0052] In some embodiments, the outer casing 101 is sleeved on the screwdriver 11, the spindle 12, and the conductive sleeve 13. In some embodiments, the outer casing 101 has a first opening O1 and a second opening O2 (e.g., ...). Figure 2 (As shown). Specifically, the first opening O1 exposes the screwdriver 11, and the second opening O2 is used to connect a vacuum assembly (not shown). In some embodiments, the housing 101 includes a conductive material to transfer electrostatic charges from there to the outside (e.g., grounding).

[0053] In some embodiments, the housing 102 houses a portion of the force detection assembly 14, the reducer assembly 15, and the drive assembly 16. In some embodiments, the housing 102 is detachably connected to the housing 101. For example, the housing 102 can be assembled to the housing 101 by screw fastening, magnetic connection, mechanical engagement, other suitable methods, or combinations thereof, but this application is not limited thereto. This facilitates the individual disassembly of a portion of the housing 10 for the maintenance of the components within the housing 10.

[0054] In some embodiments, the grip 103 covers the remaining portion of the drive assembly 16. In some embodiments, the grip 103 is detachably connected to the housing 102. For example, the grip 103 can be assembled to the housing 102 by screw fastening, magnetic connection, mechanical engagement, other suitable methods or combinations thereof. This facilitates the individual removal of a portion of the housing 10 for the repair of components within the housing 10.

[0055] In some embodiments, the outer surface of the grip portion 103 may be recessed with multiple anti-slip grooves to correspond to the user's hand and increase grip. For example, the anti-slip grooves may include mesh grooves, strip grooves, other suitable grooves, or combinations thereof. In some embodiments, the material of the outer surface of the grip portion 103 may include an insulating material to reduce the risk of electric shock to the user and increase grip. In some embodiments, one end of the grip portion 103 may be connected to an external power source to provide the power required for the drive assembly 16 to operate. Alternatively, the grip portion 103 may also house a power source such as a disposable battery or a rechargeable battery to provide the power required for the drive assembly 16 to operate.

[0056] like Figure 2 and Figure 3 As shown, the screwdriver 11 is disposed within the outer housing 101 of the housing 10 and extends through the first opening O1. Specifically, the screwdriver 11 is used to embed into a screw to rotate it. In some embodiments, the screwdriver 11 may have a specific shape to correspond to a specific type of screw. For example, specific shapes include slotted, Phillips, hexagonal, octagonal, double hexagonal, snake-eye, or star-shaped, but this application is not limited to these. In this application, the screwdriver 11 also includes an air nozzle 11A, which is disposed at the end of the screwdriver 11 and used to attract the screw. Specifically, the air nozzle 11A penetrates the interior of the screwdriver 11 and is in fluid communication with the internal space of the housing 101. In this way, the air extraction assembly can be in fluid communication with the air nozzle 11A through the internal space of the housing 101, thereby allowing the electric locking device 1 to further attract the screw by means of air extraction.

[0057] In some embodiments, the screwdriver 11 may include a conductive material to allow electrostatic charges from the user, the surrounding environment, or the object to be locked (e.g., an electronic device) to be conducted away from the housing 101 along the screwdriver 11. In some embodiments, the screwdriver 11 may also include a magnetic material to additionally attract screws magnetically. For example, magnetic materials include iron (Fe), cobalt (Co), nickel (Ni), other suitable materials, alloys thereof, or combinations thereof, but this application is not limited thereto. In some embodiments, the screwdriver 11 may also include a wear-resistant material to improve its lifespan. For example, wear-resistant materials include zirconium (Zr), titanium nitride (TiN), other suitable materials, or combinations thereof, but this application is not limited thereto.

[0058] Refer to together Figure 4 This is a schematic diagram showing the connection between the spindle and the conductive sleeve according to some embodiments of this application. Figures 2 to 4 As shown, the spindle 12 is disposed inside the outer housing 101 of the housing 10 and has a first end 12B and a second end 12A. Specifically, the first end 12B of the spindle 12 is connected to the drive assembly 16, and the second end 12A is connected to the screwdriver 11, so that the drive assembly 16 can drive the screwdriver 11 to rotate. In some embodiments, the second end 12A of the spindle 12 and the screwdriver 11 are detachably connected. In this way, the corresponding screwdriver 11 can be replaced for different types of screws, thereby improving the application flexibility of the electric fastening device 1. For example, the screwdriver 11 can be assembled onto the second end 12A of the spindle 12 by screw fastening, magnetic connection, mechanical engagement, other suitable methods or combinations thereof.

[0059] like Figures 2 to 4As shown, a conductive sleeve 13 is disposed within the housing 10 and sleeved onto the spindle 12. In some embodiments, the conductive sleeve 13 may include a first sleeve 131 and a second sleeve 132, with the first sleeve 131 disposed within the second sleeve 132. Specifically, the first sleeve 131 directly contacts the spindle 12, and the second sleeve 132 directly contacts the housing 101. In some embodiments, the first sleeve 131 of the conductive sleeve 13 and the spindle 12 are slidingly fitted. Further, the inner diameter of the first sleeve 131 of the conductive sleeve 13 is similar to or the same as the diameter of the spindle 12, or has only a gap so small that fluid cannot pass through. In this case, a high degree of airtightness can be achieved between the first sleeve 131 and the spindle 12. In some embodiments, the inner surface of the first sleeve 131 may have a connecting groove 131A, and the connecting groove 131A corresponds to the spindle 12. By providing the connecting groove 131A, the connection stability between the conductive sleeve 13 and the spindle 12 can be further improved, as well as the airtightness between them. In some embodiments, the connecting groove 131A may also be filled with a sealing fluid to reduce friction between the conductive sleeve 13 and the spindle 12, while simultaneously improving the airtightness. For example, the sealing fluid may include lubricating oil, other suitable liquids, or combinations thereof.

[0060] In some embodiments, the second sleeve 132 of the conductive sleeve 13 is in a sliding fit with the outer shell 101 of the housing 10. Further, the outer diameter of the second sleeve 132 of the conductive sleeve 13 is similar to or the same as the inner diameter of the outer shell 101, or has only a gap so small that fluid cannot pass through. In this case, a high degree of airtightness can be achieved between the second sleeve 132 and the outer shell 101. In some embodiments, the outer surface of the second sleeve 132 of the conductive sleeve 13 may also have a connecting groove 132A, and the connecting groove 132A corresponds to the outer shell 101. By providing the connecting groove, the connection stability between the conductive sleeve 13 and the outer shell 101 can be further improved, as well as the airtightness between the conductive sleeve 13 and the outer shell 101. In some embodiments, the connecting groove 132A may also be filled with a sealing fluid to reduce friction between the conductive sleeve 13 and the outer shell 101, and simultaneously improve the airtightness between the conductive sleeve 13 and the outer shell 101. For example, the sealing fluid may include lubricating oil, other suitable liquids, or combinations thereof.

[0061] With the above configuration, the conductive sleeve 13 can maintain a certain degree of airtightness with respect to the main shaft 12 and the housing 10, even when they can rotate or slide relative to each other. In this way, the conductive sleeve 13 can prevent fluid (e.g., gas) from flowing along axis A from the front side of the housing 10 (i.e., the side of the housing 101 adjacent to the locking portion) to the rear side (i.e., the side of the housing 101 adjacent to the driving portion). Figure 2 As shown, the conductive sleeve 13 can separate the interior of the outer shell 101 into a first accommodating space 101A and a second accommodating space 101B, and make the first accommodating space 101A and the second accommodating space 101B non-fluidly connected.

[0062] In some embodiments, the conductive sleeve 13 may be made of a highly conductive material, allowing electrostatic charges to travel along the conductive sleeve 13 toward the housing 10, rather than along the spindle 12 toward the object to be fastened. Herein, "highly conductive" means having a resistance less than that of the screw. For example, when the screw is made of stainless steel, the conductive sleeve 13 may comprise a conductive material with a resistance less than that of stainless steel. In some embodiments, the conductive sleeve 13 may be made of a wear-resistant material to prevent rapid wear of the surface of the conductive sleeve 13 when it slides or rotates relative to the spindle 12 or the housing 10. In some embodiments, the conductive sleeve 13 is a phosphor bronze sleeve, and the phosphor bronze sleeve is in direct contact with and electrically connected to the spindle 12. Phosphor bronze is a material that simultaneously possesses high conductivity and high wear resistance, achieving both simultaneously.

[0063] Refer to together Figure 5 This is a schematic diagram showing a force detection component and a reducer component according to some embodiments of this application. Figure 2 , Figure 3 and Figure 5 As shown, the force detection component 14 is disposed between the main shaft 12 and the reducer assembly 15. Specifically, the force detection component 14 is used to monitor the torque of the electric locking device 1. For example, the force detection component 14 may include a resistance strain gauge sensor, a magnetostrictive sensor, a photoelectric sensor, other suitable sensors, or combinations thereof, but this application is not limited to these. Compared with the prior art, the force detection component 14 of this application is disposed externally to the reducer assembly 15 in a modular manner. In this way, when either the force detection component 14 or the reducer assembly 15 needs to be repaired or replaced, the function of replacing one of them can be realized. In other words, this application effectively solves the problem of difficult-to-maintain devices in the prior art by modularizing the various components in the electric locking device 1. In some embodiments, the force detection component 14 can be assembled onto the reducer assembly 15 by screw fastening, magnetic connection, mechanical engagement, other suitable methods, or combinations thereof, but this application is not limited to these.

[0064] like Figure 2 , Figure 3 and Figure 5 As shown, the speed reducer assembly 15 is disposed between the force sensing assembly 14 and the drive assembly 16, and is connected to the spindle 12. Specifically, the speed reducer assembly 15 is used to mechanically couple the spindle 12 and the drive assembly 16 to convert the high speed of the drive assembly 16 into the high torque of the spindle 12. For example, the speed reducer assembly 15 may include a planetary speed reducer or other suitable speed reducer.

[0065] like Figure 2 , Figure 3 and Figure 5 As shown, the drive assembly 16 is disposed on one side of the reducer assembly 15. Specifically, the drive assembly 16 is mechanically coupled to the reducer assembly 15 and rotates the spindle 12 via the reducer assembly 15. In some embodiments, the drive assembly 16 may include a brushless motor or other suitable motor.

[0066] In some embodiments, the electrically operated fastening device 1 may further include an air extraction assembly (not shown). The air extraction assembly is disposed on the outer housing 101 of the housing 10 and is in fluid communication with the air nozzle 11A through the second opening O2 and the first accommodating space 101A. However, this application is not limited thereto. In some embodiments, the electrically operated fastening device 1 may not include the air extraction assembly, but may instead be connected to an external air extraction device via a pipeline such as a hose to avoid interference between the components.

[0067] In summary, this application provides an electrically operated locking device. Specifically, this application incorporates a highly airtight conductive sleeve in the electrically operated locking device, and through the conductive sleeve that slides and is electrically connected to the housing, it solves some of the aforementioned problems.

[0068] Several embodiments have been outlined above to enable those skilled in the art to better understand the viewpoints of the embodiments described herein. Those skilled in the art should understand that other processes and structures can be designed or modified based on the embodiments of this application to achieve the same purpose and / or advantages as the embodiments described herein. Those skilled in the art should also understand that such equivalent processes and structures do not depart from the spirit and scope of this application, and various changes, substitutions, and replacements can be made without departing from the spirit and scope of this application.

Claims

1. An electrically operated locking device wherein, Comprising: a housing; a driving assembly disposed inside the housing; a main shaft disposed inside the housing and having a first end and a second end, wherein the first end is connected to the driving assembly; a screwdriver connected to the second end of the main shaft, wherein the screwdriver comprises an air nozzle and the air nozzle is used to suck a screw; and an electrically conductive sleeve disposed in the housing and sleeved on the main shaft, wherein the electrically conductive sleeve separates the inside of the housing into a first accommodating space and a second accommodating space in non-fluid communication, and the electrically conductive sleeve is electrically connected with the screwdriver, the main shaft and the housing.

2. The motorized attachment device of claim 1, wherein, The electrically conductive sleeve and the main shaft are in sliding fit.

3. The motorized attachment device of claim 2, wherein, The electrically conductive sleeve and the housing are in sliding fit.

4. The motorized attachment device of claim 1, wherein, An inner side surface of the electrically conductive sleeve has a connecting groove corresponding to the main shaft.

5. The motorized attachment device of claim 4, wherein, The connecting groove is filled with a sealing liquid.

6. The motorized attachment device of claim 1, wherein, The electrically conductive sleeve is a phosphor bronze sleeve.

7. The motorized attachment device of claim 1, wherein, Further comprising an air extraction assembly disposed on the housing and in fluid communication with the air nozzle through the first accommodating space.

8. The motorized attachment device of claim 1, wherein, Further comprising a speed reducer assembly disposed between the first end of the main shaft and the driving assembly.

9. The motorized attachment device of claim 8, wherein, Further comprising a force detection assembly disposed between the first end of the main shaft and the speed reducer assembly.

10. The motorized attachment device of claim 9, wherein, The force detection assembly is detachably connected to the speed reducer assembly.

Images