Earphone box opening and closing mechanism
The opening and closing structure of the charging case is simplified by using a magnet-triggered opening component and a Helbeck array magnet arrangement. This solves the problems of complex structure and dust ingress risk in existing technologies, and achieves a simple appearance and highly reliable earphone case design.
Patent Information
- Application Number
- CN202423114486.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-16
AI Technical Summary
Existing charging cases have complex opening and closing structures, high production costs, and button structures that affect the flatness of the appearance and pose a risk of dust ingress, resulting in insufficient safety and reliability.
The opening assembly, triggered by a magnet, achieves one-click flipping and opening through the magnetic attraction and repulsion of the first and second magnets. Combined with the arrangement characteristics of the Helbeck array magnets, the structure is simplified and the production cost is reduced.
It achieves a sleek design for the earphone case, reduces gaps between buttons, extends the lifespan of electronic components, and provides a non-linear sliding feel to meet the diverse needs for opening and closing feel in different products.
Smart Images
Figure CN223540672U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electronic product technology, and more specifically to an opening and closing mechanism for an earphone case. Background Technology
[0002] In recent years, with the continuous development of smart devices, an increasing number of True Wireless Stereo (TWS) earbuds, Open Wearable Stereo (OWS) earbuds, and other smart terminals have emerged. These smart devices typically require a charging case to enable charging anytime, anywhere. Charging cases open and close in various ways, such as flip-top, sliding, and rotating. To improve the user experience, the opening and closing structure of the charging case needs innovation to meet diverse tactile feedback requirements.
[0003] Existing automatic opening and closing charging cases mostly use a button and latch structure, which is complex and has high production costs. On the other hand, the protruding button structure on the charging case body is not conducive to a flat appearance design, and the gap between the button and the shell may allow dust to enter, affecting the lifespan of internal electronic components and resulting in insufficient safety and reliability of the opening and closing components. Utility Model Content
[0004] The purpose of this utility model is to provide an opening and closing mechanism for an earphone case. This mechanism can achieve one-click flipping and opening of the case by triggering the opening component. It has a simple structure, occupies little space, has high reliability, can effectively reduce production costs, and makes the sliding damping of the button non-linearly decrease with distance, unlike the damping of the spring reset structure which increases with distance. This helps to meet the design requirements of different product opening and closing feel.
[0005] Therefore, this utility model provides an earphone case opening and closing mechanism, applied to a first housing and a second housing that are rotatably connected. The earphone case opening and closing mechanism includes:
[0006] A first magnet is disposed in a first housing;
[0007] A cover opening assembly is movably mounted on the second housing.
[0008] The second magnet is movably disposed in the second housing and is positioned opposite to the first magnet. The opening assembly can drive the second magnet to move, so that the first magnet and the second magnet have two states: magnetic attraction and magnetic repulsion.
[0009] At least one of the first magnets and the second magnet satisfies the condition that there are two different polarity distributions at the position opposite to the other magnet;
[0010] The third magnet is located in the second housing, arranged parallel to the second magnet, and positioned in the direction of movement of the second magnet;
[0011] When the opening and closing mechanism is closed, the second magnet is in its initial position and is magnetically attracted to the first magnet;
[0012] When the opening assembly is subjected to an external force, the second magnet moves under the drive of the opening assembly and repels the first magnet magnetically. The first and second housings are subjected to force, and the opening and closing mechanism opens.
[0013] When the opening assembly is not subjected to external force, the second magnet moves in the opposite direction to the initial position under the magnetic force of the third magnet, and the opening assembly resets.
[0014] Preferably, the cover opening assembly includes a sliding key and a sliding bracket. The sliding key is disposed on the outer surface of the second housing and installed on the sliding bracket. The sliding bracket is disposed inside the second housing and is fixedly connected to the second magnet.
[0015] Moving the sliding key will cause the sliding bracket and the second magnet to move.
[0016] Preferably, the outer surface of the second housing is provided with a sliding groove, a connecting hole is provided in the sliding groove, the sliding key is placed in the sliding groove and can slide within the length range of the sliding groove, and the sliding key passes through the connecting hole and is fixedly connected to the sliding bracket.
[0017] Preferably, the sliding bracket includes a magnet fixing seat, a sliding key mounting part, and a sliding shaft. The second magnet is placed inside the magnet fixing seat, the sliding key is fixedly connected to the sliding key mounting part, and the sliding shaft is fixed to both ends of the magnet fixing seat and movably engaged with the second housing.
[0018] Preferably, the third magnet is positioned on the side close to the initial position of the second magnet, and the side opposite to the second magnet is magnetically attracted to it. Under the magnetic attraction of the third magnet, the second magnet returns to its initial position.
[0019] Preferably, the third magnet is positioned on the side away from the initial position of the second magnet, and the side opposite to the second magnet is magnetically repelled. The second magnet is reset to its initial position under the magnetic repulsion of the third magnet.
[0020] Preferably, the third magnet consists of two magnets, which are respectively disposed on both sides of the second magnet in the direction of movement. The magnet on the side closer to the initial position of the second magnet is magnetically attracted to the opposite side of the second magnet, and the magnet on the side farther away from the initial position of the second magnet is magnetically repelled to the opposite side of the second magnet. The second magnet is reset to the initial position under the combined action of the magnetic attraction and magnetic repulsion of the third magnet.
[0021] Preferably, at least one of the first magnet and the second magnet is a Helbeck array magnet, which is formed by alternating connections of at least three magnets with different magnetization directions to form a linear combination;
[0022] When the opening and closing mechanism is closed, the opposite poles of all the opposing magnets in the first magnet and the second magnet are facing each other and are attracted to each other magnetically.
[0023] When the opening assembly moves the second magnet away from its initial position, all the opposing magnets in the first and second magnets with the same poles face each other and repel each other magnetically.
[0024] Preferably, a rotating assembly is provided at the rotatable connection between the first housing and the second housing. The rotating assembly includes a torsion spring, which acts on the first housing to provide a torque that pushes the first housing to rotate around the second housing and open. The torque is less than the magnetic attraction torque between the first magnet and the second magnet when the opening and closing mechanism is closed.
[0025] Preferably, the first housing further includes a magnet fixing assembly disposed opposite to the cover opening assembly. The magnet fixing assembly includes a magnet fixing part and a housing connecting part. The magnet fixing assembly is fixedly connected to the first housing through the housing connecting part.
[0026] The magnet fixing part has an opening facing the second housing. The first magnet is fixed to the magnet fixing part, and at least part of the opening of the magnet fixing part is exposed opposite the second magnet.
[0027] Compared with the prior art, the advantages and positive effects of this utility model are:
[0028] 1. The headphone case is opened with a single click via a sliding mechanism. Compared to a push-button mechanism, this saves space on the outer surface of the headphone case, making the design more concise and practical. It also reduces gaps at the button, lowering the possibility of dust getting into the gaps and extending the lifespan of the internal electronic components.
[0029] 2. The use of magnets to reset the opening component makes the sliding damping of the button decrease non-linearly with distance, unlike the damping of the spring reset structure which increases with distance. This can meet the design requirements of different product opening and closing feel.
[0030] 3. By utilizing the array arrangement characteristics of Hellbeck magnets, the opening and closing states of the shell can be switched. The structure is simple, occupies little space, has high reliability, and can effectively reduce production costs. Attached Figure Description
[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0032] Figure 1 An external view of an earphone case opening assembly provided by this utility model;
[0033] Figure 2 This is an exploded schematic diagram of a second casing provided by this utility model;
[0034] Figure 3 This is a schematic diagram of an explosion of the first casing provided by this utility model;
[0035] Figure 4 A side sectional view of an earphone case opening and closing mechanism provided by this utility model in the open state;
[0036] Figure 5 A side sectional view of the earphone case opening and closing mechanism in the closed state provided by this utility model;
[0037] Figure 6 A schematic diagram of an opening and closing mechanism provided by this utility model when it is not subjected to external force;
[0038] Figure 7 A schematic diagram of an opening and closing mechanism provided by this utility model when subjected to external force;
[0039] Figure 8 A schematic diagram of the opening principle of an opening and closing mechanism for a Hellbeck magnet array provided by this utility model;
[0040] Figure 9 This is a schematic diagram illustrating the opening principle of the opening and closing mechanism for another application of the Heilbeck magnet array provided by this utility model.
[0041] Explanation of icon numbers:
[0042] First housing 1, second housing 2, rotating assembly 3, first magnet 11, magnet fixing assembly 12, second magnet 21, third magnet 22, sliding key 23, sliding bracket 24, magnet fixing seat 241, sliding shaft 242, sliding groove 25, middle housing 26, lower housing 27, torsion spring 31, rotating shaft 32, bushing 33. Detailed Implementation
[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0044] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also mean including the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.
[0045] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.
[0046] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations.
[0047] This utility model provides an earphone case opening and closing mechanism. This mechanism can realize one-click flip opening of the case by triggering the opening component. It has a simple structure, small space occupation, high reliability, and can effectively reduce production costs. It also makes the sliding damping of the button non-linearly decrease with distance, unlike the damping of the spring reset structure which increases with distance. This helps to meet the design requirements of differentiated product opening and closing feel.
[0048] The embodiments of this application adopt the following technical solutions:
[0049] refer to Figure 1-3 This application provides an earphone case opening and closing mechanism applied to a first housing 1 and a second housing 2 that are rotatably connected. The mechanism includes a first magnet 11, a second magnet 21, a third magnet 22, and a cover opening assembly. The first magnet 11 is disposed on the first housing 1. The cover opening assembly is movably disposed on the second housing 2. The second magnet 21 is movably disposed on the second housing 2 and is positioned opposite to the first magnet 11. The cover opening assembly can drive the second magnet 21 to move, allowing the first magnet 11 and the second magnet 21 to have both magnetic attraction and magnetic repulsion states. The first magnet 11 and the second magnet 22... At least one of the two magnets 21 satisfies the condition that it has two different polarity distributions opposite to the other magnet; the third magnet 22 is disposed in the second housing 2, arranged parallel to the second magnet 21, and located in the direction of movement of the second magnet 21; when the opening and closing mechanism is closed, the second magnet 21 is in the initial position and is magnetically attracted to the first magnet 11; when the opening assembly is subjected to an external force, the second magnet 21 moves under the drive of the opening assembly and is magnetically repelled by the first magnet 11, and the first housing 1 and the second housing 2 are subjected to force, causing the opening and closing mechanism to open.
[0050] Based on common headphone case designs, the first housing 1 can be the headphone case lid, and the second housing 2 can be the headphone case body, or the first housing 1 can be the headphone case body, and the second housing 2 can be the headphone case lid. In this embodiment, the first housing 1 is chosen as the headphone case lid, and the second housing 2 is chosen as the headphone case body. Specifically, the lid is connected to the body via a rotating assembly 3.
[0051] Among them, at least one of the first magnet 11 and the second magnet 21 satisfies the condition that it has an "N" pole and an "S" pole distributed at the position opposite to the other magnet, so that the magnetic action mode of the first magnet 11 and the second magnet 21 changes when the second magnet 21 slides; the first magnet 11 and the second magnet 22 can be composed of a single magnet or multiple magnets arranged in a distributed manner, but they must satisfy the condition that there are two different polarity distributions at the position opposite to the other magnet.
[0052] In this embodiment, the rotating component 3 adopts a pin structure, including a bushing 33 and a rotating shaft 32. The bushing 33 is located at the end of the lid near the box body, and the rotating shaft 32 passes through the bushing 33, with both ends fixedly connected to the box body. The first magnet 11, the second magnet 21, and the third magnet 22 are all made of hard magnetic materials. Hard magnetic materials refer to materials that are not easily demagnetized after magnetization and retain their magnetism for a long time. Common materials include samarium cobalt magnets, neodymium iron boron magnets, and AlNiCo magnets. The first magnet 11 and the second magnet 21 are respectively located at the relative positions of the lid and the box body, so that when the box body is closed, the first magnet 11 and the second magnet 21 are magnetically attracted to each other, ensuring that the lid and the box body are tightly closed. The lid opening component is placed inside the box body, and the user can open the lid with one click by triggering the lid opening component. After the lid is opened, the user removes the external force, and the lid opening component can automatically return to its initial state under the magnetic action of the third magnet 22.
[0053] In one alternative implementation, such as Figure 1 As shown, the lid opening assembly adopts a sliding trigger method, including a sliding key 23 and a sliding bracket 24; the sliding key 23 is located on the outer surface of the box and is mounted on the sliding bracket 24; the sliding bracket 24 is located inside the box and is fixedly connected to the second magnet 21, as shown. Figure 4 As shown.
[0054] The outer surface of the box is provided with a sliding groove 25, and a connecting hole is opened in the sliding groove 25. The sliding key 23 is placed in the sliding groove 25 and can slide horizontally within the length of the sliding groove 25. The sliding key 23 passes through the connecting hole and is fixedly connected to the sliding bracket 24. The sliding bracket 24 includes a magnet fixing seat 241, a sliding key mounting part (not shown in the figure), and sliding shafts 242 at both ends. The second magnet 21 is placed in the magnet fixing seat 241, and the sliding shafts 242 at both ends are movably engaged with the second housing. Figure 6-7 The second housing is equipped with a snap-fit structure, in which the sliding shaft 242 of the sliding bracket 24 is movably inserted and can slide horizontally. Compared with a push-button structure, the sliding structure saves space on the outer surface of the earphone case, making the appearance design simpler and more practical. It also reduces the connection gaps at the buttons, lowers the possibility of dust entering the gaps, and extends the service life of the internal electronic components.
[0055] In one optional embodiment, the third magnet 22 is disposed on the side close to the initial position of the second magnet 21, and the side opposite to the second magnet 21 is magnetically attracted. When the opening assembly is subjected to an external force, the second magnet 21 moves away from the third magnet 22, and the second magnet 21 is reset to the initial position under the magnetic attraction of the third magnet.
[0056] like Figure 6-7In this embodiment, the third magnet 22 is placed above the sliding shaft 242 on one side of the sliding bracket 24, at the same height as the second magnet 21, and with their magnetic poles facing each other. The third magnet 22 is fixedly connected to the side wall of the second housing 2. The side of the third magnet 22 closest to the second magnet 21 is the "S" pole, and the side of the second magnet 21 closest to the third magnet 22 is the "N" pole. The two attract each other.
[0057] When the opening assembly is subjected to an external force, the sliding bracket 24 carries the second magnet 21 and moves it away from the third magnet 22. The user can feel the damping sensation of the third magnet 22, which decreases non-linearly with the sliding distance. When the opening assembly is not subjected to an external force, the second magnet 21 moves back to its initial position under the magnetic force of the third magnet 22, and the opening assembly resets. The third magnet 22 enables the automatic reset of the opening assembly, preparing it for the next opening.
[0058] Compared with the trigger button that uses spring elastic reset in the existing technology, this technical solution uses magnetic reset, which can reduce the space occupied by the internal design and has a simpler structure. It can effectively reduce the probability of failure of the opening and closing mechanism components and extend the service life of the product. The sliding damping of the button brought by the third magnet 22 changes non-linearly with the movement distance of the sliding key, which brings users a button sliding feel from tight to loose, which helps to meet the design requirements of differentiated product opening and closing feel.
[0059] In another optional embodiment, the third magnet 22 is positioned on the side away from the initial position of the second magnet 21, and is magnetically repelled by the side opposite to the second magnet 21. The second magnet 21 returns to its initial position under the magnetic repulsion of the third magnet 22. Compared to the previous embodiment, the third magnet 22 is positioned on the opposite side of the second magnet 21, resulting in a different magnetic effect of the third magnet 22 on the second magnet 21, but the basic principle and connection method remain the same.
[0060] In another optional embodiment, the two reset methods described above can be superimposed. The third magnet 22 consists of two magnets, which are respectively disposed on both sides of the second magnet 21 in the direction of movement. The magnet on the side closer to the initial position of the second magnet 21 is magnetically attracted to the opposite side of the second magnet 21, and the magnet on the side farther away from the initial position of the second magnet 21 is magnetically repelled to the opposite side of the second magnet 21. The second magnet 21 is reset to the initial position under the combined action of magnetic attraction and magnetic repulsion of the third magnet 22.
[0061] It should be noted that the position of the third magnet 22 can be located on the straight line of the moving path of the second magnet 21, or it can be located on the side of the moving path, as long as it can provide the magnetic force required for the second magnet 21 to reset; the third magnet 22 can be composed of a single magnet or multiple magnets arranged in a distributed manner, and this technical solution does not limit this.
[0062] In an optional embodiment, at least one of the first magnet 11 and the second magnet 21 is a Helbeck array magnet, consisting of at least three magnets with different magnetization directions alternately connected to form a linear combination. When the opening and closing mechanism is closed, all opposing magnets in the first magnet 11 and the second magnet 21 are opposite poles facing each other and magnetically attracted. When the opening assembly is subjected to an external force, all opposing magnets in the first magnet 11 and the second magnet 21 are like poles facing each other and magnetically repelled. The number of magnets in the first magnet 11 and the second magnet 21 may be equal or unequal.
[0063] like Figure 6-8 In an optional embodiment, the first magnet 11 and the second magnet 21 are both Haier shell array magnets, which are formed by five small magnets with different magnetization directions connected in parallel and alternately to form a linear combination.
[0064] When the opening and closing mechanism closes, such as Figure 8 (a) The first magnet 11 faces the second housing 2 with its magnetic poles arranged in an alternating "SNSNS" pattern, while the second magnet 21 faces the first housing 1 with its magnetic poles arranged in an alternating "NSNSN" pattern. Each "N" pole attracts the opposite "S" pole, thus achieving a strong magnetic attraction between the first magnet 11 and the second magnet 21 as a whole. Compared to a single magnet of the same volume, the Helbeck array magnet can provide greater attraction and repulsion, thereby ensuring a tight seal between the headphone case lid and the housing. This technical solution utilizes the array arrangement characteristics of Helbeck magnets to achieve switching between the open and closed states of the housing. It has a simple structure, occupies little space, has high reliability, and can effectively reduce production costs.
[0065] When the opening and closing mechanism is subjected to external force, such as Figure 8 (b) The second magnet 21 moves to one side by the distance of a small magnet under the support of the sliding bracket 24, just so that each "N" pole on the upper and lower sides repels the "N" pole on the opposite side, and each "S" pole on the opposite side repels the "S" pole on the opposite side, so that the first magnet 11 and the second magnet 21 repel each other, and the first housing 1 and the second housing 2 are subjected to force, thereby pushing the opening and closing mechanism to open.
[0066] In another alternative implementation, the first magnet 11 is not a Hellbeck array magnet, but a linear combination of two magnets connected side by side alternately, and the second magnet 21 is a Hellbeck array magnet, which is a linear combination of three small magnets with different magnetization directions connected side by side alternately.
[0067] When the opening and closing mechanism closes, such as Figure 9 (a) The first magnet 11 faces the second housing 2 with its magnetic poles arranged in an alternating "NS" pattern, while the second magnet 21 faces the first housing 1 with its magnetic poles arranged in an alternating "SNS" pattern. Each "N" pole attracts the "S" pole on the opposite side. The extra "S" pole of the second magnet 21 has no magnet opposite it, thus achieving a strong magnetic attraction between the first magnet 11 and the second magnet 21 as a whole.
[0068] When the opening and closing mechanism is subjected to external force, such as Figure 9 (b) The second magnet 21 moves to one side by the distance of a small magnet under the support of the sliding bracket 24, just enough so that each "N" pole on the upper and lower sides repels the "N" pole on the opposite side, one "S" pole of the second magnet 21 repels the "S" pole of the first magnet 11, and the other "S" pole of the second magnet 21 has no opposing magnet, so that the first magnet 11 and the second magnet 21 repel each other, and the first housing 1 and the second housing 2 are subjected to force, thereby pushing the opening and closing mechanism to open.
[0069] It should be noted that the sliding distance of the second magnet 21 can be the width of any number of small magnets, specifically determined by the design and composition of the upper and lower magnets. To achieve the effect of altering the nature of the magnetic force through sliding misalignment, in the Heilbeck array of the first magnet 11 and the second magnet 21, at least one magnet is composed of at least three small magnets connected side-by-side with different magnetization directions. The number of magnets in the first magnet 11 and the second magnet 21 can be equal or unequal.
[0070] In an alternative implementation, such as Figure 4-5 A rotating assembly is provided at the rotatable connection between the first housing 1 and the second housing 2. The rotating assembly 3 includes a torsion spring 31. The torsion spring 31 acts on the first housing 1 to provide a torque that pushes the first housing 1 to rotate around the second housing 2 and open. The torque is less than the magnetic attraction torque between the first magnet 11 and the second magnet 21 when the opening and closing mechanism is closed.
[0071] The torsion spring 31 stores elastic potential energy during the closing process of the case. When the opening and closing mechanism is closed, the magnetic attraction torque between the first magnet 11 and the second magnet 21 is greater than the torque provided by the torsion spring 31, ensuring that the headphone case lid is tightly closed. When an external force is applied to the sliding key 23, changing the relative position of the first magnet 11 and the second magnet 21 until the magnetic force becomes a repulsive force, the opening and closing mechanism opens a certain distance. The energy stored in the torsion spring 31 is released at this time, pushing the case lid to open further to the maximum position, completing the opening of the headphone case.
[0072] In one implementation, such as Figure 2-3 The first housing 1 also includes a magnet fixing assembly 12, which includes a magnet fixing part and a housing connecting part. The magnet fixing assembly 12 is fixedly connected to the first housing 1 through the housing connecting part. The magnet fixing part has an opening facing the second housing 2. The first magnet 11 is fixed to the magnet fixing part and at least partially exposed through the opening of the magnet fixing part opposite to the second magnet. The magnet fixing part is designed according to the shape of the first magnet 11, and the housing connecting part is designed according to the outline of the first housing 1. The second housing 2 includes a middle shell 26 and a lower shell 27. The middle shell 26 is located on the side of the second housing 2 closer to the first housing 1. The main body of the opening assembly is placed in the internal space defined by the middle shell 26 and the lower shell 27, and the sliding key 23 is partially exposed on the outer surface of the lower shell.
[0073] The magnet fixing component 12 is used to fix and protect the first magnet 11, ensuring the stability of the box cover and the box body in the magnetic position and improving the service life of the mechanism. The first magnet 11 and the magnet fixing part can be connected by snap-fit, or by bonding, injection molding or other methods. The middle shell 26 is used to divide and limit the internal space of the headphone box, forming an internal installation position that matches the shape of the headphone, while fixing and protecting other structural components of the box body.
[0074] This utility model also provides an earphone case, such as Figure 1-5 As shown, the earphone case includes any of the above-mentioned earphone case opening and closing mechanisms.
[0075] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.
[0076] The above provides a detailed description of the earphone charging case provided by this utility model. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. An earphone case opening and closing mechanism, characterized in that, The opening and closing mechanism is applied to the first and second housings that are rotatably connected, and includes: A first magnet is disposed in the first housing; A cover opening assembly, which is movably disposed in the second housing; The second magnet is movably disposed in the second housing and is positioned opposite to the first magnet. The opening assembly can drive the second magnet to move, so that the first magnet and the second magnet have two states: magnetic attraction and magnetic repulsion. At least one of the first magnet and the second magnet satisfies the condition that there are two different polarity distributions at the position opposite to the other magnet; A third magnet is disposed in the second housing, arranged parallel to the second magnet, and located in the direction of movement of the second magnet; When the opening and closing mechanism is closed, the second magnet is in its initial position and is magnetically attracted to the first magnet. When the opening assembly is subjected to an external force, the second magnet moves under the drive of the opening assembly and repels the first magnet magnetically. The first housing and the second housing are subjected to force, and the opening and closing mechanism opens. When the opening assembly is not subjected to external force, the second magnet moves in the opposite direction to the initial position under the magnetic force of the third magnet, and the opening assembly is reset.
2. The headphone case opening and closing mechanism according to claim 1, characterized in that, The opening assembly includes a sliding key and a sliding bracket. The sliding key is disposed on the outer surface of the second housing and installed on the sliding bracket. The sliding bracket is disposed inside the second housing and is fixedly connected to the second magnet. By moving the sliding key, the sliding bracket and the second magnet can be moved.
3. The headphone case opening and closing mechanism according to claim 2, characterized in that, The outer surface of the second housing is provided with a sliding groove, and a connecting hole is provided in the sliding groove. The sliding key is placed in the sliding groove and can slide within the length range of the sliding groove. The sliding key passes through the connecting hole and is fixedly connected to the sliding bracket.
4. The headphone case opening and closing mechanism according to claim 2, characterized in that, The sliding bracket includes a magnet fixing base, a sliding key mounting part, and a sliding shaft. The second magnet is placed inside the magnet fixing base, the sliding key is fixedly connected to the sliding key mounting part, and the sliding shaft is fixed to both ends of the magnet fixing base and movably engaged with the second housing.
5. The earphone case opening and closing mechanism according to claim 1, characterized in that, The third magnet is positioned on one side close to the initial position of the second magnet, and is magnetically attracted to the side opposite to the second magnet. Under the magnetic attraction of the third magnet, the second magnet returns to the initial position.
6. The earphone case opening and closing mechanism according to claim 1, characterized in that, The third magnet is positioned on the side away from the initial position of the second magnet, and is magnetically repelled on the side opposite to the second magnet. Under the magnetic repulsion of the third magnet, the second magnet returns to the initial position.
7. The headphone case opening and closing mechanism according to claim 1, characterized in that, The third magnet consists of two magnets, which are respectively arranged on both sides of the second magnet in the direction of movement. The magnet on the side closer to the initial position of the second magnet is magnetically attracted to the opposite side of the second magnet, and the magnet on the side farther away from the initial position of the second magnet is magnetically repelled by the opposite side of the second magnet. Under the combined effect of the magnetic attraction and magnetic repulsion of the third magnet, the second magnet returns to the initial position.
8. The earphone case opening and closing mechanism according to claim 1, characterized in that, At least one of the first magnet and the second magnet is a Helbeck array magnet, which is formed by alternating connection of at least three magnets with different magnetization directions to form a linear combination; When the opening and closing mechanism is closed, the opposite poles of the first magnet and all the opposing magnets in the second magnet are opposite to each other and are magnetically attracted to each other. When the opening assembly moves the second magnet away from the initial position, the first magnet and all the opposing magnets in the second magnet are opposite each other with the same pole, and their magnetism repels each other.
9. The headphone case opening and closing mechanism according to claim 1, characterized in that, A rotating assembly is provided at the rotatable connection between the first housing and the second housing. The rotating assembly includes a torsion spring. The torsion spring acts on the first housing and provides a torque that pushes the first housing to rotate around the second housing to open. The torque is less than the magnetic attraction torque between the first magnet and the second magnet when the opening and closing mechanism is closed.
10. The earphone case opening and closing mechanism according to claim 1, characterized in that, The first housing further includes a magnet fixing assembly disposed opposite to the opening assembly. The magnet fixing assembly includes a magnet fixing part and a housing connecting part. The magnet fixing assembly is fixedly connected to the first housing through the housing connecting part. The magnet fixing part has an opening facing the second housing. The first magnet is fixed to the magnet fixing part, and at least part of the opening of the magnet fixing part is exposed opposite the second magnet.