Bluetooth earphone with buffer protection structure and charging cabin thereof

Abstract

The utility model provides a kind of bluetooth headset with buffer protection structure and its charging cabin, including cabin, interlayer, inner bag, the inner side of the cabin is fixedly connected with interlayer, the inner side of the interlayer is fixedly connected with inner bag;The back of the cabin is equipped with the charging port of connecting inner bag, the inside of the inner bag is equipped with slot;The top of the cabin is movably connected with cabin cover, the inside of the cabin cover is equipped with the hole of corresponding slot is dug.This utility model's advantage lies in: between inner bag bottom and shell design multiple miniature silica gel elastic column (diameter is about 1.5-2mm, height is about 1mm), material selects high resilience silica gel, supports the whole of inner bag, impact force is dispersed by silica gel elastic column and interlayer absorption, not direct conduction.When earphone cabin falls: silica gel elastic column cooperates with interlayer buffer absorption external impact force;Reduce the hard contact of inner bag and cabin;Reduce the damage risk of earphone, inner bag and its internal structure.

Description

Technical Field

[0001] This utility model relates to the field of Bluetooth headset technology, and in particular to a Bluetooth headset with a buffer protection structure and its charging case. Background Technology

[0002] With the development of wireless communication technology, Bluetooth headsets have become a mainstream form of everyday consumer electronics. For ease of portability and charging, Bluetooth headsets are usually equipped with a dedicated charging case, the structure of which directly affects the headset's protective performance and lifespan. Existing charging cases mostly use a hard plastic shell (such as ABS, PC, etc.) to directly encase the earphone slot structure, or add a silicone sleeve between a single-layer shell and an inner liner to achieve basic shock absorption. However, this solution still has the following significant drawbacks: Insufficient cushioning: Traditional double-layer structures (outer shell + silicone sleeve) can only absorb some impact energy through material deformation. However, the silicone sleeve and outer shell are designed to fit tightly together, so the impact force can still be directly transmitted to the internal circuit board and earphone charging contacts through the rigid material of the outer shell during a drop. This leads to the following problems: the internal precision circuit board may experience solder joint cracking or component detachment due to vibration; the collision between the earphone and the charging contacts may cause the metal springs to deform and fail; and repeated drops may accumulate damage, increasing the product failure rate. The bottom's impact resistance is a weakness: the industry generally neglects the cushioning design of the charging case's bottom. When the charging case is dropped vertically, the bottom directly bears the maximum impact force. In existing solutions, the bottom of the inner liner is usually in hard contact with the bottom surface of the outer shell, leaving no cushioning path for the impact energy. Therefore, this paper proposes a Bluetooth headset and its charging case with a cushioning and protective structure to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0004] Therefore, one objective of this utility model is to provide a Bluetooth headset and its charging case with a buffer protection structure to solve the problems mentioned in the background art and overcome the shortcomings of the prior art.

[0005] To achieve the above objectives, one embodiment of the present invention provides a Bluetooth headset with a buffer protection structure and its charging case, including a body, a partition, and an inner liner. The partition is fixedly connected to the inner side of the body, and the inner liner is fixedly connected to the inner side of the partition. The back of the cabin is equipped with a charging port for connecting to the inner liner, and the inner liner has a slot inside. The top of the cabin is movably connected to a hatch cover, and the inner side of the hatch cover has a corresponding slot hole. There is a gap between the bottom of the inner side of the outer shell and the bottom of the inner liner. Several elastic columns are fixedly connected between the bottom of the inner side of the outer shell and the bottom of the inner liner, and the diameter of the middle section of the elastic columns is reduced.

[0006] Preferably, in any of the above embodiments, the cabin body, inner liner, and cabin cover are all made of plastic, and the partition side surrounds the inner liner.

[0007] By adopting the above technical solution, the Bluetooth headset itself and its charging case have buffering and protective properties.

[0008] This device is mainly divided into two parts. The first part is the charging compartment, which consists of a compartment body, a partition, an inner liner, a charging port, a cover, and a flexible column structure. The inner liner has a built-in circuit board, and the slot in the inner liner is equipped with charging contacts for Bluetooth headsets. The second part is the Bluetooth headset, which consists of the main body, the in-ear part, and the pad structure.

[0009] Preferably, in any of the above solutions, the partition is made of silicone, and the partition is bonded to the inside of the cabin and the outside of the inner liner with adhesive.

[0010] The core advantages of this device, employing the above technical solution, are as follows: It incorporates a partition, an inner liner, a gap between the bottom of the outer shell and the bottom of the inner liner, elastic pillars, and a padding structure for the earphones. An independent inner liner with cushioning function is added inside the earphone compartment, and the elastic structure isolates the inner liner from the outer shell, forming a physical buffer layer. Multiple micro-silicone elastic pillars (approximately 1.5-2mm in diameter and 1mm in height) are designed between the bottom of the inner liner and the outer shell. Made of high-resilience silicone, these pillars support the entire inner liner, and the impact force is dispersed and absorbed through the silicone elastic pillars and the partition, rather than being directly transmitted. When the earphone compartment falls: the silicone elastic pillars, in conjunction with the partition, absorb the external impact force; reduce hard contact between the inner liner and the outer shell; and lower the risk of damage to the earphones, inner liner, and their internal structures.

[0011] Preferably, in any of the above embodiments, the side surface of the cabin is curved and the bottom surface of the cabin is flat.

[0012] The above technical solution comprises the following structural components: Cabin: The outer shell features curved sidewalls and a flat bottom, with internal installation space reserved; Partition: A 1mm thick silicone layer is simultaneously fixed to the inner wall of the cabin and the outer wall of the inner liner using adhesive, forming the first-level buffer interface; Inner Liner: Made of rigid PC plastic, it integrates a charging circuit board and has two slots on its surface for securing headphones; Elastic Pillars: Eight pillars (arranged in a 4×2 pattern) are linearly arrayed between the bottom of the inner liner and the bottom surface of the cabin. Each pillar is 1.2mm high, with diameters of 1.8mm at both ends and 0.8mm in the middle section. Made of liquid silicone, they are connected via a sandwich structure using adhesive; Gap Design: A 1.5mm cavity is maintained between the bottom surface of the cabin and the bottom of the inner liner, allowing the elastic pillars to deform fully. The dumbbell-shaped configuration (narrower diameter in the middle section) of the elastic pillars improves strain efficiency.

[0013] Bluetooth headset structural details: Main body: built-in battery and chip module, bottom connected to the earpiece; Pad: silicone sheet, laser welded to the top of the main body, protruding 0.3mm from the headset surface.

[0014] Preferably, in any of the above embodiments, the elastic columns are arranged in a linear array in the gap between the bottom of the inner side of the outer shell and the bottom of the inner liner, the elastic columns are made of silicone, and the elastic columns are connected to the outer shell and the bottom of the inner liner by adhesive bonding.

[0015] Device manufacturing process: The partition is glued to the inner wall of the cabin with adhesive on both sides; the partition is pressed into the outer wall of the inner liner after being coated with adhesive; liquid silicone is injected into the positioning groove on the bottom of the cabin and cured to form an elastic column; the earphone pad is laser welded to the top of the main body; the charging port is inserted into the welding circuit board from the back of the cabin.

[0016] A Bluetooth headset with a buffer protection structure includes a main body, an earpiece, and a pad. The earpiece is fixedly connected to the bottom of the main body. The main body and the earpiece can be inserted into a slot and a cutout. The pad is fixedly connected to the top of the main body. The pad is made of silicone.

[0017] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows: This Bluetooth headset and its charging case feature a cushioning and protective structure. The design includes a partition, an inner liner, a gap between the bottom of the outer shell and the bottom of the inner liner, elastic pillars, and a padding structure for the headset. An independent inner liner with cushioning function is added inside the headset case, and the elastic structure isolates the inner liner from the outer shell, forming a physical cushioning layer. Multiple micro-silicone elastic pillars (approximately 1.5-2mm in diameter and 1mm in height) are designed between the bottom of the inner liner and the outer shell. Made of high-resilience silicone, these pillars support the entire inner liner, and the impact force is dispersed and absorbed through the silicone elastic pillars and the partition, rather than being directly conducted. When the headset case is dropped: the silicone elastic pillars, in conjunction with the partition, cushion and absorb external impact force; reduce hard contact between the inner liner and the outer shell; and reduce the risk of damage to the headset, inner liner, and their internal structures.

[0018] Additional aspects and advantages of this invention 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 the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a first-view structural schematic diagram of the present invention; Figure 2 This is a structural schematic diagram of the present invention from a second perspective; Figure 3This is a structural schematic diagram of the present invention from a third-view perspective; Figure 4 This is a schematic diagram of the layered structure of the inner liner of this utility model.

[0020] In the diagram: 1-cabinet, 2-partition, 3-inner liner, 4-charging port, 5-slot, 6-cabin cover, 7-elastic column, 8-main body, 9-earpiece, 10-pad. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown 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 intended to explain this utility model, and should not be construed as limiting this utility model.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] like Figure 1-4 As shown, the Bluetooth headset with a buffer protection structure and its charging case include a body 1, a partition 2, and an inner liner 3. The partition 2 is fixedly connected to the inner side of the body 1, and the inner liner 3 is fixedly connected to the inner side of the partition 2. The back of the cabin 1 is equipped with a charging port 4 that connects to the inner liner 3, and the inner liner 3 has a slot 5 inside. The top of the cabin 1 is movably connected to the hatch cover 6, and the inner side of the hatch cover 6 has a hole for a corresponding slot 5. There is a gap between the bottom of the inner side of the outer shell of the cabin 1 and the bottom of the inner liner 3. Several elastic columns 7 are fixedly connected between the bottom of the inner side of the outer shell of the cabin 1 and the bottom of the inner liner 3. The diameter of the middle section of the elastic column 7 is reduced.

[0024] Example 1: The body 1, inner liner 3, and cover 6 are all made of plastic, with a partition 2 surrounding the inner liner 3. The partition 2 is made of silicone and is bonded to the inner side of the body 1 and the outer side of the inner liner 3 by adhesive. The sides of the body 1 are curved, and the bottom is flat. Elastic pillars 7 are linearly arrayed in the gap between the bottom of the inner shell of the body 1 and the bottom of the inner liner 3. The elastic pillars 7 are made of silicone, and are bonded to the bottom of the outer shell of the body 1 and the inner liner 3 by adhesive. A Bluetooth headset with a buffer protection structure includes a main body 8, an earpiece 9, and a pad 10. The bottom of the main body 8 is fixedly connected to the earpiece 9. The main body 8 and the earpiece 9 can be inserted into the slot 5 and the cutout. The top of the main body 8 is fixedly connected to the pad 10, which is made of silicone.

[0025] Example 2: The Bluetooth headset itself and its charging case have cushioning and protective properties.

[0026] This device is mainly divided into two parts. The first part is the charging compartment, which consists of a compartment body 1, a partition 2, an inner liner 3, a charging port 4, a cover 6, and a flexible column 7. The inner liner 3 has a built-in circuit board, and the slot 5 of the inner liner 3 is equipped with charging contacts for Bluetooth headsets. The second part is the Bluetooth headset, consisting of a main body 8, an earpiece 9, and a pad 10. Structural components: Body 1: The outer shell features curved sidewalls and a flat bottom, with internal installation space; Partition 2: A 1mm thick silicone layer, simultaneously fixed to the inner wall of body 1 and the outer wall of inner liner 3 with adhesive, forming the first-level buffer interface; Inner liner 3: Made of rigid PC plastic, integrating a charging circuit board internally, with two slots 5 on the surface for securing the headset; Elastic pillars 7: Eight linearly arrayed (4×2 arrangement) between the bottom of inner liner 3 and the inner bottom surface of body 1, each pillar with a height of 1.2mm, diameters at both ends of 1.8mm, and a middle diameter of 0.8mm, made of liquid silicone, connected via adhesive to achieve a sandwich structure; Gap design: A 1.5mm cavity is maintained between the inner bottom surface of body 1 and the bottom of inner liner 3, allowing the elastic pillars 7 to deform fully. The dumbbell-shaped configuration (narrower diameter in the middle section) of the elastic pillars 7 improves strain efficiency.

[0027] Bluetooth headset structural details: Main body 8: Built-in battery and chip module, bottom connected to the earpiece 9; Pad 10: Silicone sheet, laser welded to the top of the main body 8, protruding 0.3mm from the headset surface.

[0028] The working principle of this utility model is as follows: Device processing: Double-sided adhesive is applied to the partition 2 and bonded to the inner wall of the chamber 1; adhesive is applied to the outer wall of the inner liner 3 and then the partition 2 is pressed in; liquid silicone is injected into the positioning groove on the bottom of the chamber 1 and cured to form an elastic column 7; the earphone pad 10 is laser welded to the top of the main body 8; the charging port 4 is inserted into the welding circuit board from the back of the chamber 1.

[0029] When the device is subjected to external impact (such as a drop), the graded protection mechanism is triggered sequentially: Phase 1: External impact dispersion of cabin 1; the curved cabin 1 disperses the impact force through surface deformation; the flat bottom increases the contact area and reduces local pressure.

[0030] Second stage: The first stage of energy absorption by the spacer 2 is that the silicone spacer 2 undergoes compression deformation, absorbing 20-30% of the impact energy; the bonding interface dissipates stress through micro-cracks in the adhesive layer.

[0031] Third stage: Secondary buffer of elastic column 7, radial expansion preferentially occurs at the point where the diameter of the middle section of elastic column 7 decreases ( Figure 3 (Enlarged illustration) Extends the buffer time by 5-8ms; the linear array design ensures that the impact is evenly distributed to all elastic columns 7, avoiding single-point overload.

[0032] Phase 4: Inner liner 3 provides current stabilization protection. The residual force after buffering is attenuated by more than 60% when it is transmitted to the inner liner 3. The charging contacts in slot 5 are connected by a flexible copper sheet to further isolate vibration.

[0033] Fifth stage: Protection of the earphone body. When the earphone is stored, the pad 10 protrudes 0.3mm above the earphone housing hole. In the event of a drop, the pad 10 will first contact the top of the inner tube 3, and the silicone will deform to absorb the impact energy. A 0.1mm gap is maintained between the earpiece 9 and the slot 5 to prevent hard contact.

[0034] Compared with the prior art, the present invention has the following advantages: This Bluetooth headset and its charging case, featuring a cushioning and protective structure, incorporates a partition 2, an inner liner 3, a gap between the bottom of the outer shell 1 and the bottom of the inner liner 3, elastic pillars 7, and a padding 10 for the headset. An independent inner liner with cushioning function is added inside the headset case, and the elastic structure isolates the inner liner from the outer shell, forming a physical cushioning layer. Multiple micro-silicone elastic pillars 7 (approximately 1.5-2mm in diameter and 1mm in height) are designed between the bottom of the inner liner 3 and the outer shell. Made of high-resilience silicone, these pillars support the inner liner 3 as a whole. Impact force is dispersed and absorbed through the silicone elastic pillars 7 and the partition 2, rather than being directly conducted. When the headset case is dropped: the silicone elastic pillars 7, in conjunction with the partition 2, cushion and absorb external impact force; reduce hard contact between the inner liner 3 and the shell 1; and reduce the risk of damage to the headset, inner liner 3, and their internal structures.

Claims

1. A charging compartment with a buffer protection structure, characterized in that, It includes a cabin (1), a partition (2), and an inner liner (3). The partition (2) is fixedly connected to the inner side of the cabin (1), and the inner liner (3) is fixedly connected to the inner side of the partition (2). The back of the cabin (1) is equipped with a charging port (4) for connecting the inner liner (3), and the inner liner (3) has a slot (5) inside. The top of the cabin (1) is movably connected to a hatch cover (6), and the inner side of the hatch cover (6) is provided with a hole for a corresponding slot (5). There is a gap between the bottom of the inner side of the outer shell of the cabin (1) and the bottom of the inner liner (3). Several elastic columns (7) are fixedly connected between the bottom of the inner side of the outer shell of the cabin (1) and the bottom of the inner liner (3). The diameter of the middle section of the elastic column (7) is reduced.

2. The charging compartment with a buffer protection structure as described in claim 1, characterized in that: The cabin (1), inner liner (3), and cabin cover (6) are all made of plastic, and the partition (2) surrounds the inner liner (3).

3. A charging compartment with a buffer protection structure as described in claim 2, characterized in that: The partition (2) is made of silicone and is bonded to the inner side of the cabin (1) and the outer side of the inner liner (3) by adhesive.

4. A charging compartment with a buffer protection structure as described in claim 3, characterized in that: The side of the cabin (1) is curved, and the bottom of the cabin (1) is flat.

5. A charging compartment with a buffer protection structure as described in claim 4, characterized in that: The elastic columns (7) are arranged in a linear array in the gap between the bottom of the inner side of the outer shell of the cabin (1) and the bottom of the inner liner (3). The elastic columns (7) are made of silicone. The elastic columns (7) are connected to the bottom of the outer shell of the cabin (1) and the inner liner (3) by adhesive bonding.

6. A Bluetooth headset with a buffer protection structure, characterized in that: It includes a main body (8), an earpiece (9) and a pad (10). The bottom of the main body (8) is fixedly connected to the earpiece (9). The main body (8) and the earpiece (9) can be inserted into the slot (5) and the hole. The top of the main body (8) is fixedly connected to the pad (10). The pad (10) is made of silicone.

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