Anti-lost hearing aid without charging box
By using an anti-loss lanyard structure and a Type-C connector, the problem of hearing aids easily falling out while charging is solved, achieving a convenient and safe charging method.
Patent Information
- Application Number
- CN202520188251.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-07
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-07
AI Technical Summary
Existing rechargeable hearing aids require a charging case to recharge when the battery is depleted. However, elderly people often find it difficult to keep the hearing aids in a stable position, making them prone to falling and being lost while charging.
It adopts an anti-loss lanyard structure, connects the left and right hearing aids via a Type-C connector, and uses the friction between the charging copper pins and the socket to maintain the connection and prevent it from falling out, without requiring an additional circuit board to occupy the internal space of the hearing aid.
This design prevents hearing aids from falling out while charging, simplifies the charging process, and improves ease of use and safety.
Smart Images
Figure CN223798354U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hearing aids, and in particular to an anti-loss hearing aid that does not require a charging case. Background Technology
[0002] A hearing aid is a device that amplifies sound. Its function is to increase the intensity of sound energy and transmit it into the ear with as little distortion as possible. It converts sound energy into electrical signals, processes and amplifies them through circuitry, and then converts them back into sound energy. Wearing such a hearing aid can compensate for hearing loss in people with hearing impairments to varying degrees. Hearing aids are generally classified into four types according to their external structure: behind-the-ear (BTE), in-the-ear (ITE), in-the-canal (ITC), and completely-in-the-canal (CIC).
[0003] Existing rechargeable hearing aids require placement in a charging case when the battery is depleted. During charging, charging pins inside the case connect to contacts on the hearing aid to establish a circuit. However, because hearing aids are generally used by older people, and due to their smooth surfaces and small size, elderly individuals often struggle to hold the hearing aids securely and place them accurately in the charging case. This makes the hearing aids prone to falling or being lost during charging.
[0004] Therefore, this utility model provides a hearing aid that does not require a charging case to prevent loss, thereby solving the problem that hearing aids need a charging case to replenish power and that hearing aids are prone to falling out during the replenishment process. Utility Model Content
[0005] To achieve the above objectives, this utility model adopts the following technical solution: a hearing aid that does not require a charging case, comprising: an anti-loss cord, a left hearing aid, and a right hearing aid. The anti-loss cord includes a first charging cable, a second charging cable, and a charging connector. Both the first and second charging cables have charging plugs at their other ends. One end of each charging cable is connected in parallel to the output end of the charging connector. Both the left and right hearing aids have charging areas, and each charging area has a charging interface. The charging plugs and charging interfaces are electrically connected one-to-one. The charging plug includes a plug body, a positive conductive pin, and a negative conductive pin. The positive and negative conductive pins are arranged parallel to each other on the plug body. The charging connector is a Type-C male or a Type-C female connector. The charging connector is a Type-C connector, which is convenient for compatibility with conventional power supply devices such as power banks. The anti-loss cord has two dual-copper-pin plugs, which are electrically connected to the hearing aids only through two charging copper pins, while the power supply circuit of the hearing aids remains unchanged. No additional circuit board needs to be installed, and there is no need to adjust the hearing aid's charging protocol, thus avoiding the need for Type-C and USB interface circuit boards to take up internal space in the hearing aid.
[0006] Preferably, both the first and second charging cables include a protective layer, a positive cable, and a negative cable. The plug body is integrally formed and connected to the protective layer. The positive and negative cables are both sleeved inside the protective layer. The two ends of the positive cable are respectively connected to the positive conductive pin and the positive power supply pin of the charging connector, and the two ends of the negative cable are respectively connected to the negative conductive pin and the negative power supply pin of the charging connector. The charging connector provides power to the positive and negative terminals of the two dual-copper-pin plugs through the first and second charging cables.
[0007] Preferably, the charging interface includes a positive terminal and a negative terminal, with the positive conductive pin electrically connected to the inside of the positive terminal and the negative conductive pin electrically connected to the inside of the negative terminal. The charging copper pin mates with the terminal; when an anti-loss lanyard is installed, the charging copper pin is inserted into the terminal to increase the contact area. The friction between the charging copper pin and the terminal enhances the connection strength, preventing the charging copper pin from detaching from the hearing aid.
[0008] Preferably, the charging area is provided with a groove, the charging interface is provided inside the groove, and the end face of the plug body away from the protective layer is provided with a protrusion, the protrusion being provided inside the groove.
[0009] Preferably, the anti-loss lanyard further includes a cable tie slider, which comprises a housing and a cable tie block. The cable tie block has a first through hole and a second through hole, the center lines of which are parallel to each other. The first charging cable passes through the first through hole, and the second charging cable passes through the second through hole. The radius of the first through hole is less than or equal to the radius of the first charging cable, and the radius of the second through hole is less than or equal to the radius of the second charging cable. The cable tie slider can slide along the anti-loss lanyard to adjust the distance between the cable tie slider and the charging connector. When the distance between the cable tie slider and the charging connector increases, the cable length between the hearing aid and the cable tie slider will shorten, thereby reducing the distance between the left and right hearing aids, and vice versa. Users can adjust the length of the anti-loss lanyard and the distance between the left and right hearing aids according to their needs.
[0010] Preferably, L≤R1+R2, where L is the distance between the center lines of the first through hole and the second through hole, R1 is the radius of the first through hole, and R2 is the radius of the second through hole.
[0011] Preferably, the outer shell is a hollow cylinder, and each of the two bottom surfaces of the outer shell has an opening at its center for the first charging cable and the second charging cable to pass through simultaneously. The cable bundle block is interference-fitted with the opening, and the cable bundle block is an elastic block. By constraining the shape of the cable bundle block with the outer shell, it is beneficial to increase the interaction force between the cable bundle block and the cable surface.
[0012] Preferably, the anti-loss hearing aid that does not require a charging case also includes indicator lights, and both the left and right hearing aids have indicator lights embedded on their outer surfaces.
[0013] Preferably, both the positive and negative conductive needles are charging copper needles or spring needles.
[0014] Preferably, the protrusion and the groove are detachably connected. The protrusion is an isosceles trapezoidal block, and the groove is an isosceles trapezoidal recess. The cross-section of the protrusion gradually decreases towards the protective layer. The snap-lock design prevents the anti-loss cord from detaching from the left and right hearing aids and falling off.
[0015] The anti-loss hearing aid that does not require a charging case also includes a protective cover, which is removable and located on the charging connector.
[0016] The beneficial effects of this utility model are as follows: The anti-loss rope has a one-to-two charging function. The two dual-copper-pin plugs of the anti-loss rope are connected to the left and right hearing aids respectively, preventing the hearing aids from being dropped and lost. The Type-C plug of the anti-loss rope is used to connect to an external power source with a Type-C interface, such as a power bank. The two dual-copper-pin plugs are powered simultaneously through the same Type-C plug. The two charging copper pins of the dual-copper-pin plugs are directly connected to the left and right hearing aids. It is only necessary to change the charging contacts of the left and right hearing aids to sockets made of conductive material. There is no need to set up additional circuit boards such as Type-C and USB inside the hearing aids, thus avoiding taking up internal space. Attached Figure Description
[0017] The accompanying drawings further illustrate the present invention, but the embodiments in the drawings do not constitute any limitation on the present invention.
[0018] Figure 1 This is a schematic diagram of the structure of an anti-loss hearing aid provided in an embodiment of the present invention;
[0019] Figure 2 This is a schematic diagram of the structure of an anti-loss rope provided in an embodiment of the present invention;
[0020] Figure 3 This is a schematic diagram of the structure of a left hearing aid provided in an embodiment of the present invention;
[0021] Figure 4 This is a schematic diagram of the structure of a right hearing aid provided in an embodiment of the present invention;
[0022] Reference numerals: 1: Anti-loss lanyard; 2: Left hearing aid; 3: Right hearing aid; 4: First charging cable; 5: Second charging cable; 6: Charging connector; 7: Charging plug; 8: Cable tie slider; 9: Positive conductive pin; 10: Negative conductive pin; 11: Positive socket; 12: Negative socket. Detailed Implementation
[0023] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.
[0024] It should be noted that, in this utility model, unless otherwise stated, when an element is referred to as "fixed to," "set on," or "connected to" another element, it may be directly on the other element or an intervening element may be present simultaneously. "Far" and "near" refer to distance from a certain component.
[0025] like Figures 1-4 As shown in the illustration, an embodiment of this utility model provides an anti-loss hearing aid without a charging case, comprising: an anti-loss lanyard 1, a left hearing aid 2, and a right hearing aid 3. The anti-loss lanyard 1 includes a first charging cable 4, a second charging cable 5, and a charging connector 6. Each of the first and second charging cables 4 and 5 has a charging plug 7 at one end, with one end of each cable connected in parallel to the output end of the charging connector 6. Both the left and right hearing aids 2 and 3 have charging areas with charging interfaces inside. The charging plugs 7 are electrically connected to the charging interfaces one-to-one. The charging plug 7 includes a plug body, a positive conductive pin 9, and a negative conductive pin 10, which are arranged parallel to each other on the plug body. The charging connector 6 is a Type-C male or female connector. The Type-C connector 6 facilitates compatibility with conventional power banks and other power supply devices. The anti-loss cord 1 has two dual-copper-pin plugs. These plugs connect to the hearing aid via only two charging copper pins, keeping the hearing aid's power supply circuit unchanged. No additional circuit board is required, nor is any adjustment to the hearing aid's charging protocol necessary, thus avoiding the need for Type-C and USB interface circuit boards to take up internal space in the hearing aid.
[0026] Both the first charging cable 4 and the second charging cable 5 include a protective layer, a positive cable, and a negative cable. The plug body is integrally formed and connected to the protective layer. The positive cable and the negative cable are both sleeved inside the protective layer. The two ends of the positive cable are respectively connected to the positive conductive pin 9 and the positive power supply pin of the charging connector 6. The two ends of the negative cable are respectively connected to the negative conductive pin 10 and the negative power supply pin of the charging connector 6. The charging connector 6 provides power to the positive and negative terminals of the two dual-copper-pin plugs through the first charging cable 4 and the second charging cable 5.
[0027] The charging interface includes a positive terminal 11 and a negative terminal 12. The positive conductive pin 9 is electrically connected to the inside of the positive terminal 11, and the negative conductive pin 10 is electrically connected to the inside of the negative terminal 12. The charging copper pin mates with the terminal; when the anti-loss lanyard 1 is installed, the charging copper pin is inserted into the terminal, increasing the contact area. The friction between the charging copper pin and the terminal enhances the connection strength, preventing the charging copper pin from detaching from the hearing aid.
[0028] The charging area is provided with a groove, and the charging interfaces are all located inside the groove. The end face of the plug body away from the protective layer is provided with a protrusion, and the protrusion is located inside the groove.
[0029] The anti-loss lanyard 1 also includes a cable tie slider 8. The cable tie slider 8 comprises a housing and a cable tie block. The cable tie block has a first through hole and a second through hole, the center lines of which are parallel to each other. The first charging cable 4 passes through the first through hole, and the second charging cable 5 passes through the second through hole. The radius of the first through hole is less than or equal to the radius of the first charging cable 4, and the radius of the second through hole is less than or equal to the radius of the second charging cable 5. The cable tie slider 8 can slide along the anti-loss lanyard 1 to adjust the distance between the cable tie slider 8 and the charging connector 6. When the distance between the cable tie slider 8 and the charging connector 6 increases, the cable length between the hearing aid and the cable tie slider 8 will shorten, thus reducing the distance between the left and right hearing aids 3, and vice versa. Users can adjust the length of the anti-loss lanyard 1 and the distance between the left and right hearing aids 3 according to their needs.
[0030] L≤R1+R2, where L is the distance between the center lines of the first through hole and the second through hole, R1 is the radius of the first through hole, and R2 is the radius of the second through hole.
[0031] The outer shell is a hollow cylinder, and each of the two bottom surfaces of the outer shell has an opening at its center for the first charging cable 4 and the second charging cable 5 to pass through simultaneously. The cable bundle block is interference-fitted with the opening and is an elastic block. By constraining the shape of the cable bundle block with the outer shell, the interaction force between the cable bundle block and the cable surface is improved.
[0032] The anti-loss hearing aid that does not require a charging box also includes indicator lights, and both the left hearing aid 2 and the right hearing aid 3 have indicator lights embedded on their outer surfaces.
[0033] Both the positive conductive needle 9 and the negative conductive needle 10 are charging copper needles or spring needles.
[0034] The protrusion and groove are detachably connected. The protrusion is an isosceles trapezoidal block, and the groove is an isosceles trapezoidal recess. The cross-section of the protrusion gradually decreases towards the protective layer. The buckle design prevents the anti-loss cord 1 from detaching from the left and right hearing aids 3 and falling off.
[0035] In one embodiment, the charging case-free anti-loss hearing aid further includes a protective cover, which is removably mounted on the charging connector 6. The edges of the protective cover are rounded to prevent frequent scratches between the Type-C interface and the user's skin, improving tactile comfort.
[0036] The technical features of the embodiments described above can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these should all be considered to be within the scope of this specification.
Claims
1. A lost-proof hearing aid without a charging case, characterized in that: The application relates to an anti-lost rope, left and right hearing aids and a charging connector. The first charging wire and the second charging wire each comprise a protective layer, a positive cable and a negative cable, the plug main body is integrally connected with the protective layer, the positive cable and the negative cable are sleeved in the protective layer, and the two ends of the positive cable are connected with the positive conductive needle and the positive power supply pin of the charging connector respectively.
2. The anti-lost hearing aid without a charging box according to claim 1, characterized in that: The charging interface comprises a positive jack and a negative jack, the positive conductive needle is electrically connected in the positive jack, and the negative conductive needle is electrically connected in the negative jack.
3. The anti-lost hearing aid without a charging box of claim 1, wherein: The charging area is provided with a groove, the charging interface is arranged in the groove, the end face of the plug main body away from the protective layer is provided with a convex block, and the convex block is arranged in the groove.
4. The anti-lost hearing aid without a charging box of claim 2, wherein: The anti-lost rope further comprises a wire binding slider, the wire binding slider comprises an outer shell and a wire binding block, the wire binding block is provided with a first through hole and a second through hole, the center lines of the first through hole and the second through hole are parallel to each other, the first charging wire is arranged in the first through hole, the second charging wire is arranged in the second through hole, the radius of the first through hole is less than or equal to the radius of the first charging wire, and the radius of the second through hole is less than or equal to the radius of the second charging wire.
5. The anti-lost hearing aid without a charging box of claim 1, wherein: L <= R1+R2, wherein L is the distance between the center lines of the first through hole and the second through hole, R1 is the radius of the first through hole, and R2 is the radius of the second through hole.
6. The anti-lost hearing aid without a charging box according to claim 5, characterized in that: The outer shell is a hollow cylinder, the center positions of the two bottom surfaces of the outer shell are provided with openings for the first charging wire and the second charging wire to penetrate, the wire binding block is in interference fit with the openings, and the wire binding block is an elastic block.
7. The non-rechargeable, anti-lost hearing aid according to claim 5 or 6, characterized in that: The left and right hearing aids are each provided with an embedded indicating lamp on the outer surface.
8. The anti-lost hearing aid without a charging box of claim 1, wherein: The positive conductive needle and the negative conductive needle are charging copper needles or spring needles.
9. The anti-lost hearing aid without a charging box of claim 1, wherein: The convex block and the groove are detachably connected, the convex block is an isosceles trapezoidal block, the groove is an isosceles trapezoidal groove, and the cross section of the convex block gradually decreases along the direction close to the protective layer.
10. The anti-lost hearing aid without a charging box according to claim 4, characterized in that: