Cassette wireless device
The mechanical device, which links the transmission and damping mechanisms, solves the problem of preventing the box-type wireless device from falling, and achieves both locking protection and ease of normal use for the earphone.
Patent Information
- Application Number
- CN202511160320.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-19
- Publication Date
- 2025-11-11
AI Technical Summary
Existing box-type wireless devices have poor drop protection against impacts, and the headphone case lid can easily open accidentally, causing the headphones to fall off, be damaged, or be lost.
Design a mechanical linkage anti-drop protection device including a transmission mechanism, a damping mechanism, and a locking mechanism. The transmission mechanism transmits the rotational force between the case body and the lid to the damping mechanism, generating reverse resistance to control the locking mechanism, so that it remains locked during a drop to prevent the earphones from falling off; and provides a small reverse resistance during normal use to facilitate opening the lid.
It effectively prevents the earphones from falling off, getting damaged, or being lost when dropped, while maintaining a smooth opening operation during normal use, thus improving the drop protection effect.
Smart Images

Figure CN120935963A_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of electronic technology, and specifically relates to a box-type wireless device. Background Technology
[0002] Wireless charging devices, with their compact and portable design, have become popular consumer electronics products. A prime example is the case-type wireless Bluetooth headset, which includes the earbuds and their charging case. While the case primarily serves to store and charge the earbuds, in the event of a drop, the case lid may accidentally open, posing a risk that the earbuds may fall out and be damaged by the impact. Furthermore, due to their small size, the earbuds are easily lost after a drop and difficult to recover, leading to even greater losses.
[0003] In existing technologies, to improve the drop protection of earphones, most charging cases employ magnetic or snap-lock closure structures. However, when subjected to a drop impact, the case lid may still accidentally open due to inertial impact, causing the earphones inside to fall out and be damaged, or even lost. Therefore, the drop protection performance of existing charging case-type wireless devices is relatively poor. Summary of the Invention
[0004] The purpose of this application is to provide a box-type wireless device that can solve the problem of poor drop protection in existing box-type wireless devices.
[0005] In a first aspect, embodiments of this application provide a box-type wireless device, including: a box body, a wireless device, and a protective structure, wherein the box body is used to house the wireless device;
[0006] The box body includes a box body and a box lid, and the box body and the box lid are rotatably connected.
[0007] The protective structure includes a transmission mechanism, a damping mechanism, and a locking mechanism connected in sequence. The transmission mechanism is located at the connection between the box body and the box cover, and the locking mechanism is located opposite to the wireless device.
[0008] When the rotational speed of the lid relative to the body is less than a first threshold, the damping mechanism is in a first damping state, and the locking structure avoids the wireless device; when the rotational speed of the lid relative to the body is greater than or equal to the first threshold, the damping mechanism is in a second damping state, and the locking mechanism is at least partially inserted into the wireless device to limit the wireless device.
[0009] In the embodiments of this application, a mechanical linkage anti-drop protection device based on a transmission mechanism, a damping mechanism, and a locking mechanism is creatively designed for box-type wireless devices. When the box-type wireless device is subjected to a drop impact, the transmission mechanism transmits the high-speed rotational force between the box body and the lid to the damping mechanism, which then generates a relatively large reverse resistance. This reverse resistance controls the locking mechanism to maintain the wireless device in a locked state, thereby preventing the wireless device from falling out of the box and achieving a true anti-drop protection effect. This effectively prevents the wireless device from being damaged by drops or even accidentally lost. In addition, under normal use, the transmission mechanism transmits the low-speed rotational force between the box body and the lid to the damping mechanism, which then generates a relatively small reverse resistance. Because this reverse resistance is small, the locking mechanism can be in an unlocked state, thus maintaining the smoothness of normal operation when opening the lid to retrieve the wireless device.
[0010] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description
[0011] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0012] Figure 1 This is a schematic diagram of the structure of a box-type wireless device according to an embodiment of this application;
[0013] Figure 2 This is a partially enlarged structural schematic diagram of a box-type wireless device according to an embodiment of this application;
[0014] Figure 3a and Figure 3b This is an assembly diagram of the anti-fall protection structure according to an embodiment of this application;
[0015] Figure 4 This is a schematic diagram of the gear and belt drive mechanism according to an embodiment of this application;
[0016] Figure 5 This is a schematic diagram of the sliding damping mechanism according to an embodiment of this application;
[0017] Figure 6 This is a schematic diagram of the transmission lever according to an embodiment of this application;
[0018] Figure 7 This is a schematic diagram of the components of the elastic locking mechanism according to an embodiment of this application;
[0019] Figure 8a This is a schematic diagram of the locking state assembly of the elastic locking mechanism according to an embodiment of this application;
[0020] Figure 8b This is a schematic diagram of the structure of the box-type wireless device in the locked state according to an embodiment of this application;
[0021] Figure 8c This is a partially enlarged structural diagram of the elastic locking mechanism when the box-type wireless device according to an embodiment of this application is in a locked state;
[0022] Figure 9a This is a schematic diagram of the unlocked state assembly of the elastic locking mechanism according to an embodiment of this application;
[0023] Figure 9b This is a schematic diagram of the structure of a box-type wireless device in an unlocked state according to an embodiment of this application;
[0024] Figure 9c This is a partially enlarged structural diagram of the elastic locking mechanism of the box-type wireless device in the unlocked state according to an embodiment of this application. Detailed Implementation
[0025] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0026] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and do not limit the number of objects; for example, a first object can be one or more. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0027] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0028] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0029] The box-type wireless device provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.
[0030] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of a box-type wireless device provided in an embodiment of this application. Figure 1 As shown, the box-type wireless device includes:
[0031] The package includes a housing 100, a wireless device 200, and a protective structure 300. The housing 100 is used to house the wireless device 200.
[0032] The box body 100 includes a box body 101 and a box lid 102, and the box body 101 and the box lid 102 are rotatably connected;
[0033] The protective structure 300 includes a transmission mechanism 301, a damping mechanism 302 and a locking mechanism 303 connected in sequence. The transmission mechanism 301 is located at the connection between the box body 101 and the box cover 102, and the locking mechanism 303 is located opposite to the wireless device 200.
[0034] When the rotational speed of the lid 102 relative to the body 101 is less than the first threshold, the damping mechanism 302 is in the first damping state, and the locking mechanism 303 avoids the wireless device 200; when the rotational speed of the lid 102 relative to the body 101 is greater than or equal to the first threshold, the damping mechanism 302 is in the second damping state, and the locking mechanism 303 is at least partially inserted into the wireless device 200 to limit the wireless device 200.
[0035] Specifically, the end of the transmission mechanism 301 away from the damping mechanism 302 is connected to the first position of the box body 101, and the locking mechanism 303 is set at the second position of the box body 101. The first position is located at the connection between the box body 101 and the box cover 102. The second position is different from the first position. When the wireless device 200 is stored in the box body 100, the locking mechanism 303 abuts against the wireless device 200 to lock the wireless device 200.
[0036] When the box-type wireless device is in a drop impact state and the box cover 102 and the box body 101 are open relative to each other, a first rotational force is generated between the box body 101 and the box cover 102. The transmission mechanism 301 is driven by the first rotational force, which causes the damping mechanism 302 to generate a first reverse resistance corresponding to the first rotational force, thereby keeping the locking mechanism 303 locked to the wireless device 200.
[0037] When the box-type wireless device is in normal use and the lid 102 and the body 101 are open relative to each other, a second rotational force is generated between the body 101 and the lid 102. The transmission mechanism 301 is driven by the second rotational force, which causes the damping mechanism 302 to generate a second reverse resistance corresponding to the second rotational force, thereby causing the locking mechanism 303 to be in the unlocked state of the wireless device 200. The first rotational force is greater than the second rotational force, and the second reverse resistance is less than the first reverse resistance.
[0038] In this application embodiment, to ensure effective drop protection for wireless devices, a box-type wireless device structure is proposed, such as... Figure 1 As shown, the device includes a housing 100, a wireless device 200, and a protective structure 300. The housing 100 includes a body 101 and a lid 102. The lid 102 is rotatable relative to the body 101, allowing the housing 100 to switch between open and closed states. The body 101 provides space to accommodate the wireless device 200, such as a receiving slot adapted to the shape of the wireless device 200, for storing the wireless device 200. The wireless device 200 can be placed in the receiving slot of the body 101, and the wireless device 200 can be locked or unlocked through the protective structure 300 provided on the body 101.
[0039] The wireless device 200 can be a Bluetooth headset or any other wireless device, and the box 100 can be an ordinary storage box or a wireless charging box with charging function, which can charge the wireless device 200 placed in the box 100.
[0040] In a specific application scenario, the box-type wireless device in this application embodiment can be a box-type wireless Bluetooth headset. For example, wireless device 200 is a wireless Bluetooth headset, and the box 100 is a wireless Bluetooth headset case, specifically a portable charging case for wireless Bluetooth headsets. The accompanying drawings of this application embodiment mainly use a box-type wireless Bluetooth headset as an example for illustration.
[0041] The aforementioned protective structure 300 can be understood as a drop protection device for the wireless device 200. This protective structure 300 is modularly placed inside the housing 100, specifically in the housing 101 section, and the assembly effect is as follows: Figure 1 and Figure 2 The diagram shows a partial enlarged view of the protective structure 300. The specific structural composition and connection relationships of the protective structure 300 can be found in [reference needed]. Figure 3a and Figure 3b It is mainly composed of several parts, namely, transmission mechanism 301, damping mechanism 302 and locking mechanism 303, which are connected in sequence.
[0042] like Figure 1 As shown, the transmission mechanism 301 is located at the connection between the box body 101 and the box cover 102. The wireless device 200 is placed in the receiving slot in the box body 101. The locking mechanism 303 is positioned opposite to the wireless device 200 to lock and unlock the wireless device 200. Specifically, one end of the transmission mechanism 301 is connected to a first position of the box body 101, which is the rotational connection between the box body 101 and the box cover 102. The other end of the transmission mechanism 301 is connected to one end of the damping mechanism 302, and the other end of the damping mechanism 302 is connected to the locking mechanism 303. The locking mechanism 303 is located at a second position of the box body 101, specifically near the receiving slot where the wireless device 200 is placed, and can abut against the wireless device 200 placed in the box body 101.
[0043] The transmission mechanism 301 is mainly used to transmit the rotational force between the lid 102 and the body 101 to the damping mechanism 302 when the box 100 is opened. The specific implementation of the transmission mechanism 301 can be a mechanical transmission form such as gear transmission, belt transmission, chain transmission, or linkage mechanism.
[0044] The damping mechanism 302 generates a corresponding reverse resistance based on the rotational force transmitted from the transmission mechanism 301. For example, the greater the rotational force received by the damping mechanism 302, the greater the reverse resistance generated, thereby preventing the locking mechanism 303 from unlocking the wireless device 200 and keeping it locked, thus achieving a drop protection effect for the wireless device 200. The damping mechanism 302 can be implemented using a damper or similar structure, generating the reverse resistance through a built-in viscous fluid or friction plate.
[0045] The locking mechanism 303 primarily locks the wireless device 200, ensuring it remains securely placed in the box 101 without external force. It also prevents the wireless device 200 from falling out of the box 101 due to external force in the event of an accidental drop, thus avoiding potential risks such as impact damage or loss. Of course, the locking mechanism 303 can also unlock the wireless device 200, allowing the user to easily remove it from the box 101 during normal use.
[0046] When the lid 102 is opened normally to retrieve the wireless device 200, the rotation speed of the lid 102 relative to the body 101 is relatively small, usually less than the first threshold. However, under drop impact conditions, the lid 102 is easily opened by the impact force, and in this case, the rotation speed of the lid 102 relative to the body 101 is often larger, exceeding the first threshold. Therefore, the rotation speed of the lid 102 relative to the body 101 reflects the different states of the box-type wireless device. In this embodiment, the damping mechanism 302 can be in different damping states at different rotational speeds of the lid 102 relative to the body 101. Specifically, the higher the rotational speed, the greater the damping generated by the damping mechanism 302. When the rotational speed of the lid 102 relative to the body 101 is relatively low, such as below the first threshold, the damping mechanism 302 is in the first damping state. In this damping state, the damping is relatively low, and the corresponding reverse resistance generated by the damping mechanism 302 is relatively low. In this case, to meet the normal usage needs of the user, the locking mechanism 303 avoids the wireless device 200, so that the wireless device 200 is in an unlocked state. Users can easily retrieve the wireless device 200. When the rotational speed of the lid 102 relative to the body 101 is relatively high, such as greater than or equal to the first threshold, the damping mechanism 302 is in a second damping state. In this damping state, the damping is greater, and the corresponding reverse resistance generated by the damping mechanism 302 is greater. In this case, to prevent the wireless device 200 from falling out of the body 101, the locking mechanism 303 is at least partially inserted into the wireless device 200 to limit the wireless device 200. The locking mechanism 303 avoids the wireless device 200, so that the wireless device 200 is in an unlocked state, allowing the user to easily retrieve the wireless device 200. The first threshold can be determined based on an empirical value of the rotational speed of the lid 102 relative to the body 101 when the lid is normally open.
[0047] Thus, when the box-type wireless device is subjected to a drop impact, the lid 102 and the body 101 are prone to relative rotation due to the impact force. That is, the lid 102 rotates away from the body 101, causing the body 100 to open. This generates a relative rotational force between the lid 102 and the body 101. The greater the impact force and the faster the rotation speed, the greater the rotational force. This rotational force is transmitted to the damping mechanism 302 through the transmission mechanism 301. Based on the transmitted rotational force, the damping mechanism 302 generates resistance in the opposite direction and of a corresponding magnitude, preventing the force from being further transmitted to the locking mechanism 303. This keeps the locking mechanism 303 locked to the wireless device 200, preventing the wireless device 200 from falling out of the body 101, thereby achieving the purpose of drop protection.
[0048] In addition, when the box-type wireless device is in normal use, and the lid 102 and body 101 are opened by the user's normal opening force, a relatively small rotational force is generated between the lid 102 and body 101. This rotational force is transmitted to the damping mechanism 302 through the transmission mechanism 301. Based on the transmitted rotational force, the damping mechanism 302 generates a resistance in the opposite direction and of a corresponding magnitude. That is, the reverse resistance generated under normal use is small. Under the action of the small reverse resistance, the locking mechanism 303 will be in the unlocked state of the wireless device, so as to maintain the smoothness of operation when the lid is opened normally to take out the wireless device.
[0049] According to some embodiments of this application, such as Figure 4 As shown, the transmission mechanism 301 includes a main gear shaft 3011, a gear transmission belt 3012, and a two-stage speed-increasing gear set 3013;
[0050] The main gear shaft 3011 is located at the connection between the box body 101 and the box cover 102, and the box cover 102 rotates around the main gear shaft 3011 when it rotates relative to the box body 101.
[0051] The two-stage speed-increasing gear set 3013 includes a secondary gear shaft 30131 and a first gear 30132, with the first gear 30132 sleeved on the secondary gear shaft 30131.
[0052] The two ends of the gear drive belt 3012 are respectively sleeved on the main gear shaft 3011 and the secondary gear shaft 30131;
[0053] One end of the damping mechanism 302 is provided with a meshing tooth 3023, and the first gear 30132 meshes with the meshing tooth 3023 provided on the damping mechanism 302;
[0054] When the lid 102 and the body 101 are opened relative to each other, the main gear shaft 3011 generates rotational force. The transmission mechanism 301 transmits the rotational force to the damping mechanism 302 through the gear transmission belt 3012 and the two-stage speed-increasing gear set 3013, so that the damping mechanism 302 generates reverse resistance.
[0055] In some embodiments, the transmission mechanism 301 can be implemented using a gear and belt drive structure, such as... Figure 4 As shown, the transmission mechanism 301 includes a main gear shaft 3011 coaxial with the rotating shaft of the lid 102, a gear transmission belt 3012, and a two-stage speed-increasing gear set 3013. Exemplarily, the main gear shaft 3011 consists of two parts: one part is the rotating shaft between the lid 102 and the body 101, and the other part is the gear shaft and gears of the transmission mechanism 301. The gear transmission belt 3012 includes gears and a transmission belt. The two-stage speed-increasing gear set 3013 includes two gears, namely a first gear 30132 and a second gear 30121, and a secondary gear shaft 30131. The gear transmission belt 3012 is respectively sleeved on the second gear 30121 on the main gear shaft 3011 and the second gear 30121 on the secondary gear shaft 30131, and both its left and right ends mesh with the sleeved second gear 30121, thereby realizing the gear transmission function of the gear transmission belt 3012.
[0056] Figure 4 The specific working mechanism of the transmission mechanism 301 shown is as follows: when the cover 102 of the wireless device 200 is opened or closed, the main gear shaft 3011 will convert the opening and closing angle of the cover 102 into the rotational motion of the gear set of the transmission mechanism 301. The gear transmission belt 3012, through meshing with the second gear 30121 of the two-stage speed-increasing gear set 3013, transmits the motion of the main gear shaft 3011 to the two-stage speed-increasing gear set 3013. The first gear 30132 of the two-stage speed-increasing gear set 3013 transmits the axial rotational motion amplitude of the main gear shaft 3011 to the next stage damping mechanism 302.
[0057] In addition, such as Figure 5 As shown, the damping mechanism 302 has a meshing tooth 3023 at one end near the first gear 30132, and is meshed with the first gear 30132 through the meshing tooth 3023. In this way, the rotational force on the first gear 30132 can be transmitted to the damping mechanism 302, driving the damping mechanism 302 to move.
[0058] Thus, this embodiment provides an effective gear belt drive implementation that can transmit rotational force to the wireless device box cover through simple gear meshing, belt transmission, and multi-stage meshing.
[0059] According to a further embodiment of this application, the size of the first gear 30132 is larger than the size of the second gear 30121 sleeved on the secondary gear shaft 30131 on the gear transmission belt 3012.
[0060] To amplify the rotational motion of the cover 102, the size of the first gear 30132 on the secondary gear shaft 30131 can be designed to be larger than the size of the second gear 30121. Specifically, a small gear and a large gear are respectively mounted on the secondary gear shaft 30131, and the gear transmission belt 3012 is mounted on the small gear. In this way, the gear transmission belt 3012, through meshing with the small gear (i.e., the second gear 30121) of the two-stage speed-increasing gear set 3013, transmits the motion of the main gear shaft 3011 to the two-stage speed-increasing gear set 3013. The large gear (i.e., the first gear 30132) of the two-stage speed-increasing gear set 3013 amplifies the rotational motion of the main gear shaft 3011 and transmits it to the next stage damping mechanism 302. This allows the damping mechanism 302 to generate greater reverse resistance, increasing the locking force of the locking mechanism 303 on the wireless device 200, and further effectively improving the drop protection effect of the box-type wireless device.
[0061] According to some embodiments of this application, such as Figure 5 As shown, the damping mechanism 302 includes a sliding rod 3021 and a damper 3022, with the damper 3022 sleeved on the middle part of the sliding rod 3021;
[0062] One end of the sliding rod 3021 is connected to the transmission mechanism 301, and the other end of the sliding rod 3021 is connected to the locking mechanism 303.
[0063] When the sliding rod 3021 moves under the transmission action of the transmission mechanism 301, the damper 3022 generates resistance in the opposite direction to the movement of the sliding rod 3021.
[0064] In some embodiments, the damping mechanism 302 can be implemented using a sliding damping structure, such as... Figure 5As shown, the damping mechanism 302 includes a sliding rod 3021 and a damper 3022 sleeved in the middle of the sliding rod 3021. That is, the mechanism is composed of a sliding rod 3021 and a damper 3022 that are linked to the large gear of the two-stage speed-increasing gear set 3013. One end of the sliding rod 3021 has a meshing tooth 3023, which meshes with the large gear of the two-stage speed-increasing gear set 3013. This meshing tooth 3023 converts the rotational motion of the large gear of the two-stage speed-increasing gear set 3013 into the reciprocating translational motion of the sliding rod 3021. The other end of the sliding rod 3021 is connected to the locking mechanism 303, thus transmitting the reciprocating translational motion of the sliding rod 3021 to the locking mechanism 303. The damper 3022 contains a viscous fluid or friction plate. When the two-stage speed-increasing gear set 3013 rotates at high speed, driving the sliding rod 3021 to slide, it generates a large amount of reverse resistance. At this time, the damper 3022 can absorb a large amount of drop impact energy and prevent the impact force from being transmitted to the locking mechanism 303, achieving the anti-drop protection function. During normal opening, the two-stage speed-increasing gear set 3013 rotates at low speed, driving the sliding rod 3021 to slide. Under this condition, the resistance generated by the damper 3022 is also relatively small, and the opening force is accurately transmitted to the next stage locking mechanism 303.
[0065] According to further embodiments of this application, such as Figure 3a , Figure 3b and Figure 6 As shown, the protective structure 300 also includes a transmission lever 304, with the two ends of the transmission lever 304 connected to a sliding rod 3021 and a locking mechanism 303, respectively.
[0066] In some embodiments, a transmission lever 304 is further provided between the damping mechanism 302 and the locking mechanism 303. The reverse resistance generated on the damping mechanism 302 is transmitted to the next-stage locking mechanism 303 through the transmission lever 304. Specifically, the transmission lever 304 has the following structure: Figure 6 As shown, the transmission lever 304 can transmit the reciprocating translational motion of the sliding rod 3021 to the locking mechanism 303. The damper 3022 can generate a large reverse resistance when the two-stage speed-increasing gear set 3013 rotates at high speed and drives the sliding rod 3021 to slide. At this time, the damper 3022 can absorb a large amount of falling impact energy and prevent the impact force from being transmitted to the transmission lever 304. When the cover is opened normally, the two-stage speed-increasing gear set 3013 rotates at low speed and drives the sliding rod 3021 to slide. The resistance of the damper 3022 is small, and the opening force is accurately transmitted to the next stage locking mechanism 303 through the transmission lever 304.
[0067] According to further embodiments of this application, such as Figure 6 As shown, a first actuation buckle 30211 is provided at one end of the sliding rod 3021 that is connected to the transmission lever 304, and the sliding rod 3021 is connected to the first end of the transmission lever 304 through the first actuation buckle 30211.
[0068] like Figure 6 As shown, the end of the sliding rod 3021 near the transmission lever 304 has a toggle buckle, namely the first toggle buckle 30211. The first toggle buckle 30211 is connected to the transmission lever 304, transmitting the reciprocating translational motion of the sliding rod 3021 to the locking mechanism 303. This implementation method has the advantages of simple structure and easy implementation.
[0069] According to some embodiments of this application, such as Figure 6 As shown, a rotating shaft 3041 is provided at the third position on the transmission lever 304. The transmission lever 304 is rotatably connected to the box body 101 through the rotating shaft 3041. The third position is located at one end of the transmission lever 304 near the sliding rod 3021.
[0070] In some embodiments, a rotating shaft 3041 is provided at a third position on the transmission lever 304 near the sliding rod 3021 of the damping mechanism 302, such as... Figure 1 and Figure 2 As shown, the transmission lever 304 is rotatably connected to the box body 101 via the rotating shaft 3041. The function of the rotating shaft 3041 is to limit the movement of the transmission lever 304, restricting the transmission lever 304 to only move up and down around the rotating shaft 3041, and preventing the transmission lever 304 from moving to other directions and disengaging from the sliding rod 3021.
[0071] According to some embodiments of this application, such as Figure 7 As shown, the locking mechanism 303 includes a sliding locking block 3031, a sliding locking pin 3032, and a guide fixing base 3033;
[0072] The sliding locking block 3031 is elastically connected to the guide fixing base 3033, and the guide fixing base 3033 is provided with an open groove 30331, in which the sliding locking block 3031 is accommodated.
[0073] The sliding locking block 3031 has a groove 30311, and the sliding locking pin 3032 passes through the groove 30311 and can move in the groove 30311 along a first direction, which is the longitudinal direction along the sliding locking pin 3032.
[0074] Specifically, when the sliding locking pin 3032 switches from a first position state to a second position state relative to the sliding locking block 3031, the sliding locking block 3031 moves in the second direction, so that the sliding locking pin 3032 and the sliding locking block 3031 are in a relatively locked state, and the wireless device 200 is in a locked state. The second direction is the direction from the self-guided fixed base 3033 to the sliding locking block 3031. The first position state is when the sliding locking pin 3032 and the sliding locking block 3031 are in an unlocked position state, and the second position state is when the sliding locking pin 3032 and the sliding locking block 3031 are in a locked position state.
[0075] When the sliding locking pin 3032 switches from the second position state to the first position state relative to the sliding locking block 3031, the sliding locking block 3031 moves in a third direction, so that the sliding locking pin 3032 and the sliding locking block 3031 are in a relatively unlocked state, and the wireless device 200 is in an unlocked state. The third direction is opposite to the second direction.
[0076] In some embodiments, the locking mechanism 303 may employ, for example... Figure 7 The elastic locking structure implementation shown is as follows: Figure 7 As shown, the locking mechanism 303 includes components such as a sliding locking block 3031, a sliding locking pin 3032, and a guide fixing base 3033. Specifically, the sliding locking block 3031 and the guide fixing base 3033 are elastically connected. The guide fixing base 3033 has an open groove 30331, meaning the side of the open groove 30331 facing the sliding locking block 3031 is open and not closed, allowing the sliding locking block 3031 to be accommodated within it. Furthermore, the sliding locking block 3031 and the guide fixing base 3033 can undergo a certain degree of translational movement under elastic action.
[0077] The sliding locking block 3031 has a groove 30311 in the middle that matches the shape and size of the sliding locking pin 3032. The sliding locking pin 3032 is precisely locked in the groove 30311 and can move up and down in the longitudinal direction in the groove 30311, so that it can be inserted and removed in the groove 30311.
[0078] In this embodiment, the sliding locking pin 3032 can be in at least two different position states relative to the sliding locking block 3031, corresponding to the locked state and unlocked state of the locking mechanism 303, respectively. Specifically, this can be achieved by setting a limiting structure between the sliding locking pin 3032 and the inner wall of the sliding locking block 3031. Specifically, when the sliding locking pin 3032 switches from one position state to another relative position state with respect to the sliding locking block 3031, the sliding locking block 3031 moves away from the guide fixing base 3033. At this time, the sliding locking pin 3032 and the sliding locking block 3031 are in a relatively locked state, generating pre-pressure between the guide fixing base 3033 and the sliding locking block 3031, causing the sliding locking block 3031 to press against the wireless device 200. At this time, the wireless device 200 cannot move and is in a locked state, providing anti-fall protection.
[0079] When the sliding locking pin 3032 switches from the second position state to the first position state relative to the sliding locking block 3031, the sliding locking block 3031 moves towards the guide fixing base 3033. At this time, the sliding locking pin 3032 and the sliding locking block 3031 are in a relatively unlocked state. The sliding locking block 3031 is forced to squeeze the guide fixing base 3033 and move away from the wireless device 200. At this time, the wireless device 200 is in an unlocked state, and the user can take the wireless device 200 out of the box 101 for normal use.
[0080] According to further embodiments of this application, such as Figure 7 As shown, the first side of the sliding locking pin 3032 is provided with a ramp protrusion structure 30321, and the groove 30311 wall of the sliding locking block 3031 is provided with a ramp structure 30312 adapted to the ramp protrusion structure 30321. The first side is the side of the sliding locking pin 3032 facing the guide fixing base 3033.
[0081] When the sliding locking pin 3032 is in the first position relative to the sliding locking block 3031, the slope surface of the ramp protrusion structure 30321 is in contact with the slope surface of the ramp structure 30312.
[0082] In some embodiments, the sliding locking pin 3032 and the sliding locking block 3031 can achieve a limiting function through matching ramp protrusion structures, allowing them to have different relative positional states. Specifically, for example... Figure 7As shown, the sliding locking pin 3032 has a ramp protrusion structure 30321 on its side facing the guide fixing base 3033. Specifically, it can be a triangular ramp protrusion structure. The groove 30311 wall of the sliding locking block 3031 has a ramp structure 30312 that matches the ramp surface of the ramp protrusion structure 30321. When the sliding locking pin 3032 is located in the groove 30311 and the two are in the first position relative to each other, the ramp protrusion structure 30321 and the ramp structure 30312 fit together perfectly. In practical applications, the transmission lever 304 can drive the sliding locking pin 3032 to move up and down. The sliding locking pin 3032 and the sliding locking block 3031 cooperate through the beveled surfaces of the same slope to convert the up and down movement of the sliding locking pin 3032 into the horizontal movement of the sliding locking block 3031, thereby realizing the locking and unlocking states of the locking mechanism 303.
[0083] According to some embodiments of this application, such as Figure 7 As shown, the locking mechanism 303 also includes a compression spring 3034, with the two ends of the compression spring 3034 connected to the sliding locking block 3031 and the guide fixing base 3033, respectively.
[0084] In some embodiments, the locking mechanism 303 further includes a compression spring 3034, which is assembled between the guide fixing base 3033 and the sliding locking block 3031. That is, the guide fixing base 3033 and the sliding locking block 3031 are elastically connected by the compression spring 3034, so that the compression spring 3034 can provide pre-pressure and horizontal pushing force to the sliding locking block 3031.
[0085] According to some embodiments of this application, such as Figure 7 As shown, the second side of the sliding locking pin 3032 is provided with a first guide rail 30322, and the second side is the side of the sliding locking pin 3032 opposite to the inner wall of the open groove 30331;
[0086] The inner wall of the open groove 30331 is also provided with a second guide rail 30333, and at least one guide ball 3035 is filled between the first guide rail 30322 and the second guide rail 30333.
[0087] In some embodiments, a longitudinal first guide rail 30322 may be provided on the side of the sliding locking pin 3032 opposite to the inner wall of the open groove 30331. Correspondingly, a longitudinal second guide rail 30333 is also provided on the inner wall of the open groove 30331 opposite to the first guide rail 30322. At least one guide ball 3035 is filled between the first guide rail 30322 and the second guide rail 30333, so that the sliding locking pin 3032 can slide relative to the guide fixing base 3033 through the guide ball 3035.
[0088] According to some embodiments of this application, such as Figure 7 As shown, the outer surface of the sliding locking block 3031 is provided with a slider 30313, and the inner wall of the open groove 30331 is provided with a sliding guide rail 30332 adapted to the slider 30313. When the sliding locking block 3031 moves in the second direction, the slider 30313 moves along the sliding guide rail 30332.
[0089] In some embodiments, the outer surface of the sliding locking block 3031 has an outwardly protruding slider 30313 at the upper end. Correspondingly, the inner wall of the open groove 30331 is provided with a sliding guide rail 30332 that matches the shape and size of the slider 30313. Thus, the sliding locking block 3031 can smoothly move horizontally by cooperating with the guide fixing base 3033 through the lateral sliding guide rail 30332.
[0090] According to some embodiments of this application, such as Figure 7 As shown, one end of the sliding locking pin 3032 is provided with a toggle buckle, namely the second toggle buckle 30323, and the sliding locking pin 3032 is connected to the second end of the transmission lever 304 through the second toggle buckle 30323.
[0091] In some embodiments, the bottom end of the sliding locking pin 3032 is provided with a second toggle buckle 30323, and the sliding locking pin 3032 is connected to the second end of the transmission lever 304 through the second toggle buckle 30323.
[0092] The following is combined Figures 8a to 9c The locked and unlocked states of the elastic locking mechanism 303 of the box-type wireless device structure described in this application embodiment are illustrated by the following example:
[0093] In the locked state, under normal closed conditions, the compression spring 3034 generates pre-pressure between the guide fixed base 3033 and the sliding locking block 3031, causing the sliding locking block 3031 to press against the wireless device 200, at which point the wireless device 200 cannot move. In the drop state, as mentioned above, the damping mechanism 302 prevents the drop impact force from being transmitted to the locking mechanism 303, and the locking mechanism 303 remains in the locked state under normal conditions, preventing the wireless device 200 from moving arbitrarily during a drop. The structural state of the locking mechanism 303 in the locked state is as follows: Figure 8a , Figure 8b and Figure 8c As shown.
[0094] In the unlocked state, under normal opening conditions, the opening force of the locking mechanism 303 is precisely transmitted to the sliding locking pin 3032 through the aforementioned protective structure 300. The sliding locking pin 3032 moves downwards under the action of the transmission lever 304, forcing the sliding locking block 3031 to compress the compression spring 3034 and move away from the wireless device 200, thus unlocking the device. The structural state of the locking mechanism 303 in the unlocked state is as follows: Figure 9a , Figure 9b and Figure 9c As shown.
[0095] Most existing Bluetooth earphone cases use magnetic or snap-on closure structures. When subjected to a drop impact, the case lid may still accidentally open due to inertial impact, causing the earphones inside to fall out and be damaged, or even lost. Strengthening the snap-on clamping force or increasing the magnetic strength can improve this problem, but these methods suffer from drawbacks such as difficulty in opening the case and structural fatigue after long-term use. The problem of earphones falling out and being lost during high-speed drops still exists. The case-type wireless device provided in this application embodiment effectively solves the above problems, achieving the advantages of both drop protection and smooth opening operation.
[0096] In summary, this application provides a drop protection device for box-type wireless devices based on gear transmission and a damping mechanism. Through mechanical linkage, it automatically locks the lid upon drop impact while maintaining smooth operation during normal opening. The specific features of this device are as follows: Normal opening: During manual opening, the gear transmission group rotates at low speed, and the damper provides moderate resistance to ensure smooth operation; During a drop: The impact force triggers high-speed rotation of the gear transmission group, and the damper generates exponentially increased dynamic resistance; The elastic locking pin engages with the gear teeth to form a mechanical lock, ensuring that the earphones do not detach from the charging case.
[0097] This application achieves a significant resistance to opening the earphone case lid during a drop impact through a mechanical linkage device, making it difficult to open completely. Even if the drop impact energy is too large, causing the lid to open at an excessive angle, the locking mechanism ensures that the earphones inside the charging case will not move or collide during the drop, preventing damage or accidental loss of the earphones. However, it also maintains smooth operation when opening the lid normally.
[0098] This application presents a novel mechanical linkage anti-drop protection device for box-type wireless devices, based on a transmission mechanism, a damping mechanism, and a locking mechanism. When the box-type wireless device is subjected to a drop impact, the transmission mechanism transmits the high-speed rotational force between the box body and the lid to the damping mechanism. The damping mechanism then generates a relatively large reverse resistance, which controls the locking mechanism to maintain the wireless device in a locked state, thereby preventing the wireless device from falling out of the box and achieving a true anti-drop protection effect. This effectively prevents damage or accidental loss of the wireless device. Furthermore, during normal use, the transmission mechanism transmits the low-speed rotational force between the box body and the lid to the damping mechanism, which then generates a relatively small reverse resistance. Because this reverse resistance is small, the locking mechanism remains unlocked, ensuring smooth operation when opening the lid to retrieve the wireless device.
[0099] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," 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 application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0100] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.
Claims
1. A box-type wireless device, characterized in that, include: The package includes a housing, a wireless device, and a protective structure, wherein the housing is used to house the wireless device. The box body includes a box body and a box lid, and the box body and the box lid are rotatably connected. The protective structure includes a transmission mechanism, a damping mechanism, and a locking mechanism connected in sequence. The transmission mechanism is located at the connection between the box body and the box cover, and the locking mechanism is located opposite to the wireless device. When the rotational speed of the lid relative to the body is less than a first threshold, the damping mechanism is in a first damping state, and the locking structure avoids the wireless device. When the rotational speed of the lid relative to the body is greater than or equal to the first threshold, the damping mechanism is in a second damping state, and the locking mechanism is at least partially inserted into the wireless device to limit the wireless device.
2. The box-type wireless device according to claim 1, characterized in that, The transmission mechanism includes a main gear shaft, a gear transmission belt, and a two-stage speed-increasing gear set; The main gear shaft is located at the connection between the box body and the box cover, and the box cover rotates around the main gear shaft when it rotates relative to the box body; The two-stage speed-increasing gear set includes a secondary gear shaft and a first gear, with the first gear sleeved on the secondary gear shaft; The two ends of the gear transmission belt are respectively sleeved on the main gear shaft and the secondary gear shaft; One end of the damping mechanism is provided with meshing teeth, and the first gear meshes with the meshing teeth provided on the damping mechanism; When the lid and body of the box are opened relative to each other, the transmission mechanism transmits the rotational force generated by the main gear shaft to the damping mechanism through the gear transmission belt and the two-stage speed-increasing gear set, so that the damping mechanism generates reverse resistance.
3. The box-type wireless device according to claim 2, characterized in that, The size of the first gear is larger than the size of the second gear that is sleeved on the secondary gear shaft on the gear transmission belt.
4. The box-type wireless device according to any one of claims 1 to 3, characterized in that, The damping mechanism includes a sliding rod and a damper, with the damper sleeved in the middle of the sliding rod; One end of the sliding rod is connected to the transmission mechanism, and the other end of the sliding rod is connected to the locking mechanism; When the sliding rod moves under the transmission action of the transmission mechanism, the damper generates resistance in the opposite direction to the movement of the sliding rod.
5. The box-type wireless device according to claim 4, characterized in that, The protective structure also includes a transmission lever, the two ends of which are connected to the sliding rod and the locking mechanism, respectively.
6. The box-type wireless device according to claim 5, characterized in that, The sliding rod is provided with a first actuation buckle at one end connected to the transmission lever, and the sliding rod is connected to the first end of the transmission lever through the first actuation buckle.
7. The box-type wireless device according to claim 5, characterized in that, The transmission lever is provided with a rotating shaft at one end near the sliding rod, and the transmission lever is rotatably connected to the box body through the rotating shaft.
8. The box-type wireless device according to any one of claims 1 to 7, characterized in that, The locking mechanism includes a sliding locking block, a sliding locking pin, and a guide fixing base; The sliding locking block is elastically connected to the guide fixing base, and the guide fixing base is provided with an open groove, in which the sliding locking block is accommodated. The sliding locking block has a groove, and the sliding locking pin passes through the groove and can move in the groove along a first direction, which is the longitudinal direction of the sliding locking pin. Specifically, when the sliding locking pin switches from a first position state to a second position state relative to the sliding locking block, the sliding locking block moves in a second direction, causing the sliding locking pin and the sliding locking block to be in a relative locking state, corresponding to the wireless device being in a locked state. The second direction is the direction from the guide fixing base to the sliding locking block. The first position state is when the sliding locking pin and the sliding locking block are in an unlocked position state, and the second position state is when the sliding locking pin and the sliding locking block are in a locked position state. When the sliding locking pin switches from the second position state to the first position state relative to the sliding locking block, the sliding locking block moves in a third direction, so that the sliding locking pin and the sliding locking block are in a relatively unlocked state, corresponding to the wireless device being in an unlocked state, and the third direction is opposite to the second direction.
9. The box-type wireless device according to claim 8, characterized in that, The first side of the sliding locking pin is provided with a ramp protrusion structure, and the groove wall of the sliding locking block is provided with a ramp structure adapted to the ramp protrusion structure. The first side is the side of the sliding locking pin facing the guide fixing base. When the sliding locking pin is in the first position relative to the sliding locking block, the slope surface of the ramp protrusion structure is in contact with the slope surface of the ramp structure.
10. The box-type wireless device according to claim 8, characterized in that, The locking mechanism also includes a compression spring, the two ends of which are respectively connected to the sliding locking block and the guide fixing base.
11. The box-type wireless device according to any one of claims 8 to 10, characterized in that, The outer surface of the sliding locking block is provided with a slider, and the inner wall of the open groove is provided with a sliding guide rail adapted to the slider. When the sliding locking block moves in the second direction, the slider moves along the sliding guide rail.
12. The box-type wireless device according to any one of claims 8 to 10, characterized in that, The second side of the sliding locking pin is provided with a first guide rail, and the second side is the side of the sliding locking pin opposite to the inner wall of the open groove; The inner wall of the open groove is also provided with a second guide rail, and at least one guide ball is filled between the first guide rail and the second guide rail.
13. The box-type wireless device according to any one of claims 8 to 10, characterized in that, One end of the sliding locking pin is provided with a second actuating buckle, and the sliding locking pin is connected to the second end of the transmission lever through the second actuating buckle.