Earphone charging case

Abstract

This utility model belongs to the field of headphone technology, specifically relating to an earphone charging case. The earphone charging case includes a body, a top cover, a sensor, and a shock-absorbing component. The body has a mounting cavity and an opening communicating with the mounting cavity. The mounting cavity is used to store earphones. The top cover is rotatably connected to the body and movably closes to the opening. The sensor is located inside the body and is used to detect the free-fall state of the earphone charging case. The shock-absorbing component is electrically connected to the sensor. At least one of the body and / or the top cover has a shock-absorbing component, which includes a shock-absorbing assembly and a shock-absorbing cavity communicating with the shock-absorbing cavity. The shock-absorbing assembly is located inside the shock-absorbing cavity and is used to absorb shock according to the earphone charging case being in a free-fall state. This utility model improves the structural integrity and reliability of the earphone charging case in drop scenarios, solving the problem that existing earphone charging cases lack effective protection during drops and are easily damaged by impact.

Description

Technical Field

[0001] This utility model belongs to the field of headphone technology, specifically relating to an earphone charging case. Background Technology

[0002] With the widespread adoption of wireless earbuds, charging cases, serving as storage and charging devices, are frequently carried and used by users. Most existing charging cases are made of hard plastic or metal, and their structure mainly includes a shell to house the earbuds, a charging port, and an internal battery assembly. However, in actual use, charging cases often slip from hands or fall from heights such as tabletops. Due to the lack of effective impact-resistant structures or cushioning devices, these cases are prone to shell breakage, internal component damage, and even malfunction. This not only affects the user experience but also increases maintenance and replacement costs.

[0003] While some existing technologies attempt to improve drop resistance by thickening the shell or adding rubber rings to the corners, these measures often fail to provide effective protection without significantly increasing the product's size or weight, and may still cause damage in actual drop scenarios. Therefore, improving the drop resistance of earphone charging cases within a limited space is a pressing issue that needs to be addressed in this technological field. Utility Model Content

[0004] The purpose of this invention is to at least solve the problem that existing earphone charging cases are easily damaged by impact during drops. This purpose is achieved through the following technical solution:

[0005] This utility model proposes an earphone charging case, comprising:

[0006] The main body has a mounting cavity and an opening communicating with the mounting cavity, the mounting cavity being used to store the earphones;

[0007] The upper cover is rotatably connected to the body and movably closes to the opening;

[0008] A sensor, located within the main body, is used to detect the free-falling state of the earphone charging case;

[0009] A shock-absorbing component is electrically connected to the sensor. At least one of the body and / or the top cover is provided with the shock-absorbing component. The shock-absorbing component includes a shock-absorbing cavity and a shock-absorbing assembly disposed within the shock-absorbing cavity. The shock-absorbing cavity is configured to communicate with the outside of the earphone charging case. The shock-absorbing assembly is configured to dampen the earphone charging case based on the sensor detecting that the earphone charging case is in a free-fall state.

[0010] The earphone charging bin according to the present utility model is used to store TWS (true wireless stereo earphones). By providing a shock-absorbing cavity connected to the outside in the earphone charging bin and arranging a controllable shock-absorbing component in the shock-absorbing cavity, when the sensor detects that the charging bin is in a free-falling state, the shock-absorbing component responds and forms a linkage buffer mechanism with the external environment through the shock-absorbing cavity, effectively reducing the impact force when the earphone charging bin contacts the ground instantaneously and reducing the risk of the housing cracking or internal components being damaged. Thus, the present utility model improves the structural integrity and use reliability of the earphone charging bin in a falling scenario, and solves the problem in the prior art that the earphone charging bin lacks effective protection means during the falling process and is vulnerable to impact damage.

[0011] In addition, the earphone charging bin according to the present utility model may further have the following additional technical features:

[0012] In some embodiments of the present utility model, the shock-absorbing component includes a spring, and one such spring is provided in each of the shock-absorbing cavities.

[0013] In some embodiments of the present utility model, the shock-absorbing component further includes a cover plate and a locking mechanism. One end of the spring is connected to the inner wall of the shock-absorbing cavity, and the other end of the spring abuts against the cover plate. The locking mechanism is electrically connected to the sensor and is configured to control the cover plate to close the shock-absorbing cavity when the earphone charging bin is in a first state, and the locking mechanism is further configured to control the cover plate to open the shock-absorbing cavity when the earphone charging bin is in a second state, and the spring can extend out of the earphone charging bin through the shock-absorbing cavity.

[0014] In some embodiments of the present utility model, the shock-absorbing component includes a micro fan, and the micro fan is arranged in the shock-absorbing cavity and is electrically connected to the sensor.

[0015] In some embodiments of the present utility model, the shock-absorbing component further includes a valve, and the valve is electrically connected to the sensor and is used to open or close the shock-absorbing cavity.

[0016] In some embodiments of the present utility model, the main body is provided with the shock-absorbing component, and the upper cover is provided with a first air passage connected to the outside of the earphone charging bin. The first air passage is connected to the shock-absorbing cavity, and along the direction from the upper cover to the main body, the flow cross-section of the first air passage gradually decreases.

[0017] In some embodiments of the present utility model, the main body is provided with the shock-absorbing component, and the upper cover is provided with a pneumatic cavity, and the pneumatic cavity is connected to the shock-absorbing cavity.

[0018] In some embodiments of this utility model, the earphone charging case further includes a microprocessor, and the shock-absorbing component is electrically connected to the sensor through the microprocessor.

[0019] In some embodiments of this utility model, the shock-absorbing cavity is connected to the side of the body opposite to the upper cover.

[0020] In some embodiments of this utility model, the earphone charging case includes a plurality of shock-absorbing components, and the shock-absorbing cavities of the plurality of shock-absorbing components are spaced apart, with the distance between two adjacent shock-absorbing cavities ranging from 0.5cm to 1cm. Attached Figure Description

[0021] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0022] Figure 1 A schematic diagram of the opening and closing structure of the earphone charging case according to an embodiment of the present invention is shown.

[0023] Figure 2 A schematic diagram of the headphone charging case when closed according to an embodiment of the present invention is shown.

[0024] Figure 3 A cross-sectional view of plane AA is shown when this embodiment is the first embodiment;

[0025] Figure 4 for Figure 3 A magnified view of a section at point B in the middle;

[0026] Figure 5 A cross-sectional view of plane AA is shown when this embodiment is the second embodiment a;

[0027] Figure 6 A cross-sectional view of plane AA is shown when this embodiment is the second embodiment b.

[0028] The attached figures are labeled as follows:

[0029] 100. Earphone charging case;

[0030] 10. Top cover; 20. Main body;

[0031] 30. Vibration damping chamber; 31. Vibration damping assembly; 311. Spring; 312. Cover plate; 313. Locking mechanism; 314. Miniature fan; 32. First air passage; 33. Air pressure chamber; 34. Valve. Detailed Implementation

[0032] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0033] 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 include 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.

[0034] 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.

[0035] 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.

[0036] like Figures 1 to 6 As shown, according to an embodiment of the present invention, an earphone charging case 100 is proposed. The earphone charging case 100 includes a body 20, a top cover 10, a sensor, and a shock-absorbing component. The body 20 has a mounting cavity and an opening communicating with the mounting cavity. The mounting cavity is used to store earphones. The top cover 10 is rotatably connected to the body 20 and movably closes to the opening. The sensor is located inside the body 20 and is used to detect the free-fall state of the earphone charging case 100. The shock-absorbing component is electrically connected to the sensor. Multiple shock-absorbing cavities 30 are respectively provided on the upper arm of the body 20 and / or the top cover 10. The shock-absorbing component includes a shock-absorbing assembly 31 and a shock-absorbing cavity 30 communicating with the shock-absorbing cavity 30. The shock-absorbing assembly 31 is provided inside the shock-absorbing cavity 30 and is used to take shock-absorbing measures according to the free-fall state of the earphone charging case 100.

[0037] The earphone charging case 100 of this invention is used to store wireless earphones. A shock-absorbing cavity 30, connected to the outside, is provided within the charging case 100, and a controllable shock-absorbing component 31 is installed within the shock-absorbing cavity 30. When a sensor detects that the charging case is in a free-fall state, the shock-absorbing component 31 responds, forming a linkage buffer mechanism between the shock-absorbing cavity 30 and the external environment. This effectively reduces the impact force of the earphone charging case 100 upon contact with the ground, lowering the risk of shell breakage or damage to internal components. Therefore, this invention improves the structural integrity and reliability of the earphone charging case 100 in drop scenarios, solving the problem of existing earphone charging cases 100 lacking effective protection during drops and being easily damaged by impact.

[0038] It is understood that this utility model provides two different specific embodiments. In the first embodiment, the shock-absorbing component 31 includes a spring 311, which uses the elastic force of the spring 311 to absorb shock when the earphone charging case 100 is in a free-falling state. In the second embodiment, the shock-absorbing component 31 includes a miniature fan 314, which generates an air cushion area between the earphone charging case 100 and the ground when the earphone charging case 100 is in a free-falling state, which can absorb shock.

[0039] like Figure 3 and Figure 4As shown, in the first embodiment, there are multiple shock-absorbing components, including a shock-absorbing assembly 31 comprising a spring 311, with each shock-absorbing cavity 30 containing a spring 311. When the sensor detects that the earphone charging case 100 is in a free-fall state, the spring 311 in the shock-absorbing cavity 30 extends outward under the action of the control mechanism. By first contacting the ground or providing elastic cushioning, it absorbs part of the impact energy, thereby reducing the impact force generated by the collision between the earphone charging case 100 body 20 and the ground. By setting spring 311 structures in multiple shock-absorbing cavities 30 respectively, combined with the design of connecting the shock-absorbing cavities 30 to the outside, multi-point elastic support can be achieved during the falling process of the charging case. When the spring 311 extends, it can preferentially contact the ground to form a buffer support surface, effectively absorbing the impact of the collision and reducing the risk of shell deformation, internal circuit or battery damage. This embodiment improves the impact resistance of the earphone charging case 100 in drop scenarios, realizes distributed shock absorption protection, and solves the technical problem that the existing earphone charging case 100 is easily damaged as a whole when falling.

[0040] Furthermore, the shock-absorbing assembly 31 also includes a cover plate 312 and a locking mechanism 313. One end of the spring 311 abuts against the inner wall of the shock-absorbing cavity 30, and the other end of the spring 311 abuts against the cover plate 312. The locking mechanism 313 connects the cover plate 312 and the side wall of the shock-absorbing cavity 30 respectively and is electrically connected to the sensor. When the earphone charging case 100 is in the first state (i.e., the normal state), the cover plate 312 closes the shock-absorbing cavity 30 through the locking mechanism 313. When the earphone charging case 100 is in the second state (i.e., the free-fall state), the cover plate 312 and the shock-absorbing cavity 30 separate (i.e., the shock-absorbing cavity 30 is opened), and the spring 311 extends out of the shock-absorbing cavity 30. The locking mechanism 313 is unlocked under the control of the sensor signal, causing the cover plate 312 to separate from the shock-absorbing cavity 30, thereby allowing the spring 311 to extend out of the shock-absorbing cavity 30 under the action of elasticity, thus achieving external buffering. By incorporating a sensor-controlled locking mechanism 313 and a cover plate 312, the spring 311 can be reliably stored within the shock-absorbing cavity 30 in a non-drop-prone state, ensuring a compact and aesthetically pleasing structure that does not affect daily use. Upon detecting a drop, the locking mechanism 313 automatically unlocks, opening the cover plate 312. The spring 311 quickly releases and extends outside the housing, first contacting the ground to buffer shock and effectively absorb impact energy, reducing the risk of damage to the earphone charging case 100. This structure offers advantages such as automatic release, rapid response, and significant shock absorption. It also facilitates the spring 311's return to its original position, improving the practicality and reliability of the shock-absorbing device.

[0041] Specifically, the locking mechanism 313 includes a retractable limiting block disposed on the inner wall of the shock-absorbing cavity 30 and a limiting groove disposed on the circumferential side wall of the cover plate 312. The limiting block is an elastically telescopic structure (such as controlled by an elastic element or a micro electromagnetic drive), capable of radial movement within the shock-absorbing cavity 30. When the earphone charging case 100 is in the first state (i.e., the normal static state), the limiting block extends outward and embeds into the limiting groove, thereby locking the cover plate 312 at the opening of the shock-absorbing cavity 30. At this time, the surface of the cover plate 312 is flush with the surface of the charging case housing, and the overall appearance is consistent. When the sensor detects that the earphone charging case 100 is in a free-fall state, the control signal causes the limiting block to retract to the inner wall of the shock-absorbing cavity 30, disengaging it from the limiting groove. At this time, the cover plate 312 pops out under the pushing action of the spring 311, exposing the shock-absorbing cavity 30 and releasing the spring 311 to provide cushioning. After the drop cushioning is complete, the user can manually push the cover plate 312 back into the damping cavity 30 along the original path. The limiting block will automatically extend again and lock into the limiting groove under the action of the elastic or driving mechanism, completing the relocking of the cover plate 312. To guide the reset action, a guide ramp can be provided at the opening of the damping cavity 30.

[0042] Specifically, the locking mechanism 313 is a rotatable baffle located on the inner circumferential surface of the opening of the shock-absorbing cavity 30 and connected to a sensor-controlled micro motor or electromagnetic actuator. The baffle can rotate around its axis, and its edge can partially cover the edge of the cover plate 312 to form a lock. In the first state, the baffle rotates to cover the edge of the cover plate 312, preventing the cover plate 312 from popping out. In the second state (free fall), the sensor sends a control signal to rotate the baffle to the unlocked position, and the cover plate 312 pops outward under the push of the spring 311. After the fall, the user can press the cover plate 312 back into its original position, and the baffle can be rotated back to the initial locking position by the micro motor, or automatically reset by the action of the elastic reset mechanism. A button can also be provided to restore the locked state.

[0043] In the second embodiment, the shock-absorbing component 31 includes a miniature fan 314, which is disposed within the shock-absorbing cavity 30 and electrically connected to the sensor. When the sensor detects that the earphone charging case 100 is in a free-fall state, the miniature fan 314 is activated, discharging airflow outward along the shock-absorbing cavity 30 to form an outward high-speed airflow channel, thereby establishing an airflow buffer structure between the inside and outside of the shock-absorbing cavity 30. By providing a shock-absorbing cavity 30 communicating with the outside inside the earphone charging case 100 and integrating a miniature fan 314 within the cavity, an airflow cushion layer can be formed by rapid exhaust when the charging case falls, generating an upward reaction air pressure before the charging case contacts the ground, thereby effectively reducing the falling speed and impact intensity of the main body 20.

[0044] Specifically, the shock absorption assembly 31 also includes valves 34, which are configured to cooperate with the shock absorption chamber 30 and are electrically connected to the sensor. Valves 34 control the opening and closing of the shock absorption chamber 30. Under normal conditions, all valves 34 are closed, sealing the shock absorption chamber 30 and preventing external dust, moisture, or foreign objects from entering, while ensuring the charging case's overall structure is compact and well-sealed. When the sensor detects that the earphone charging case 100 is in a free-fall state, the sensor sends a control signal to the valves 34, causing them to open the shock absorption chamber 30, thus connecting the shock absorption chamber 30 to the outside. This, combined with the exhaust from the micro fan 314, forms an airflow buffer layer, effectively reducing shock. By setting independently controllable electrically controlled valves 34 at each shock absorption chamber 30, the opening and closing state of the shock absorption chamber 30 is dynamically adjusted, making the connection between the shock absorption chamber 30 and the outside controllable and intelligently responsive. This not only improves the airflow efficiency of the micro fan 314 during operation but also allows the shock absorption chamber 30 to be closed in a non-falling state, enhancing the system's protective performance and environmental adaptability. Overall, the reliability and shock resistance of the earphone charging case 100 have been improved in complex usage scenarios.

[0045] like Figure 5 As shown, specifically in the second embodiment a, the upper cover 10 is provided with a first air passage 32 connected to the shock-absorbing cavity 30 and a shock-absorbing cavity 30 located in the body 20. The first air passage 32 and the shock-absorbing cavity 30 are connected, and a micro fan 314 is located inside the shock-absorbing cavity 30. Along the direction from the upper cover 10 to the body 20, the flow cross-section of the first air passage 32 gradually decreases, while the flow cross-section of the shock-absorbing cavity 30 can be constant or gradually increase. However, at the connection between the first air passage 32 and the shock-absorbing cavity 30, the flow cross-section of the shock-absorbing cavity 30 is larger than that of the first air passage 32. Because the flow cross-section of the first air passage 32 gradually decreases, the micro fan 314 will form a relatively large negative pressure on the side of the first air passage 32 when it is working, thereby forming an adsorption force between the upper cover 10 and the body 20, so that the upper cover 10 will not automatically pop open or separate due to inertia during the falling process.

[0046] like Figure 6As shown, specifically in the second embodiment b, the shock-absorbing cavity 30 is also located in the body 20, and the upper cover 10 has a semi-enclosed air pressure cavity 33. The shock-absorbing cavity 30 is connected to the air pressure cavity 33, and a miniature fan 314 is located inside the shock-absorbing cavity 30. When the sensor detects that the earphone charging case 100 is in a free-falling state, the miniature fan 314 starts, drawing airflow along the direction of the shock-absorbing cavity 30, causing the air in the air pressure cavity 33 to flow downward, thereby forming a negative pressure area inside the air pressure cavity 33. By setting a semi-enclosed air pressure cavity 33 in the upper cover 10 and a shock-absorbing cavity 30 connected to it in the body 20, a stable negative pressure environment is formed in the air pressure cavity 33 through the airflow suction when the miniature fan 314 is working. This negative pressure will generate a downward suction force on the upper cover 10 during the fall of the earphone charging case 100, thereby effectively suppressing the upper cover 10 from separating from the body 20 due to inertia or rebound.

[0047] Furthermore, the main body 20 is also provided with a second air duct. One end of the second air duct is connected to the shock-absorbing cavity 30, and the other end is connected to the outside of the earphone charging case 100. This second air duct is used to provide a continuous and sufficient airflow source to the shock-absorbing cavity 30 when the miniature fan 314 is working. When the charging case is in a free-fall state, the miniature fan 314 is started under the control of the sensor. It introduces external air through the second air duct and quickly discharges it through the shock-absorbing cavity 30, forming a high-speed airflow that is ejected outward at the bottom of the earphone charging case 100, thereby forming an air buffer layer between the charging case and the ground.

[0048] In some embodiments, the earphone charging case 100 also includes a microprocessor, and the shock-absorbing component is electrically connected to a sensor via the microprocessor. The sensor is used to monitor the acceleration or position of the earphone charging case 100 in real time. When it detects that the earphone charging case 100 is in a free-fall state, it transmits the monitoring signal to the microprocessor. The microprocessor makes a judgment based on the received signal and outputs control commands to the shock-absorbing component to trigger the execution of shock-absorbing measures, such as driving the micro fan 314 to start, opening the valve 34 of the shock-absorbing chamber 30, or releasing the spring 311 mechanism.

[0049] In some embodiments, the shock-absorbing cavities 30 are all located at the bottom of the body 20 (i.e., the side of the body 20 facing away from the top cover 10). Since the internal structure of the earphone charging case 100 typically makes its bottom relatively heavy, during free fall, the earphone charging case 100 will naturally land on its bottom side first due to the distribution of its center of gravity. Concentrating the shock-absorbing cavities 30 at the bottom of the body 20 allows the shock-absorbing components 31 (such as springs 311 or miniature fans 314) to act precisely on the part that first contacts the ground, effectively absorbing the impact energy at the moment of impact.

[0050] In some embodiments, the earphone charging case 100 includes multiple shock-absorbing components spaced apart, with the distance between two adjacent shock-absorbing components ranging from 0.5 cm to 1 cm. By arranging multiple shock-absorbing components spaced apart along the outer wall of the body 20 or the top cover 10, and limiting the distance between two adjacent shock-absorbing components to within the range of 0.5 to 1 cm, the shock-absorbing components can be structurally evenly distributed and moderately dense, thereby achieving a more stable and continuous shock absorption effect.

[0051] It is understood that the upper cover 10 and the body 20 are rotatably connected by a hinge structure. Specifically, one end of the body 20 is provided with a first hinge seat, and one end of the upper cover 10 is provided with a second hinge seat that cooperates with it. The two are rotatably connected by a pivot, so that the upper cover 10 can rotate relative to the body 20 to open or close around the pivot.

[0052] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An earphone charging pod, characterized in that, include: The main body has a mounting cavity and an opening communicating with the mounting cavity, the mounting cavity being used to store the earphones; The upper cover is rotatably connected to the body and movably closes to the opening; A sensor, located within the main body, is used to detect the free-falling state of the earphone charging case; A shock-absorbing component is electrically connected to the sensor. At least one of the body and / or the top cover is provided with the shock-absorbing component. The shock-absorbing component includes a shock-absorbing cavity and a shock-absorbing assembly disposed within the shock-absorbing cavity. The shock-absorbing cavity is configured to communicate with the outside of the earphone charging case. The shock-absorbing assembly is configured to dampen the earphone charging case based on the sensor detecting that the earphone charging case is in a free-fall state.

2. The earphone charging pod of claim 1, wherein, The shock absorption assembly includes a spring, and each shock absorption cavity contains one of the springs.

3. The earphone charging pod of claim 2, wherein, The shock-absorbing assembly also includes a cover plate and a locking mechanism. One end of the spring is connected to the inner wall of the shock-absorbing cavity, and the other end of the spring abuts against the cover plate. The locking mechanism is electrically connected to the sensor. The locking mechanism is configured to control the cover plate to close the shock-absorbing cavity when the earphone charging case is in a first state. The locking mechanism is also configured to control the cover plate to open the shock-absorbing cavity when the earphone charging case is in a second state. The spring can extend through the shock-absorbing cavity to the outside of the earphone charging case.

4. The earphone charging pod of claim 1, wherein, The vibration damping component includes a miniature fan, which is disposed inside the vibration damping cavity and electrically connected to the sensor.

5. The earphone charging pod of claim 4, wherein, The shock absorption assembly also includes a valve, which is electrically connected to the sensor and is used to open or close the shock absorption chamber.

6. The earphone charging case according to claim 4, characterized in that, The main body is provided with the shock-absorbing component, and the upper cover is provided with a first air passage that communicates with the outside of the earphone charging case. The first air passage is connected to the shock-absorbing cavity, and the flow cross-section of the first air passage gradually decreases along the direction from the upper cover to the main body.

7. The earphone charging case according to claim 4, characterized in that, The main body is provided with the shock-absorbing component, and the upper cover is provided with a pressure chamber, which is connected to the shock-absorbing chamber.

8. The earphone charging case according to any one of claims 1 to 7, characterized in that, The earphone charging case also includes a microprocessor, and the shock-absorbing component is electrically connected to the sensor through the microprocessor.

9. The earphone charging case according to any one of claims 1 to 7, characterized in that, The shock-absorbing cavity is connected to the side of the body opposite to the top cover.

10. The earphone charging case according to any one of claims 1 to 7, characterized in that, The earphone charging case includes multiple shock-absorbing components, and the shock-absorbing cavities of the multiple shock-absorbing components are spaced apart, with the distance between two adjacent shock-absorbing cavities ranging from 0.5cm to 1cm.

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