Interface assembly of USB charging seat
By adding an extension and a support overlap in the Type-A port of the USB charging dock, the grounding failure caused by impact or drop in traditional USB chargers is solved, ensuring stable grounding and improving the reliability and safety of the charging dock.
Patent Information
- Application Number
- CN202423172780.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Traditional USB chargers' 1A ports are prone to grounding failures due to drops or impacts during use, preventing static electricity and leakage from being conducted to the ground and causing damage to the port.
In the Type A interface of the USB charging dock, a first grounding terminal extension and a carrier bearing are added. On the first grounding terminal, the overlapping part and the overlapping part of the first shielding shell are connected so that they remain connected when impacted or dropped. The overlapping part and the extension of the carrier bearing of the first grounding terminal and the carrier bearing ensure stable grounding.
It effectively prevents grounding failures caused by impacts or drops, ensures proper grounding of the Type A interface, avoids static electricity and leakage problems, and improves the reliability and safety of the charging dock.
Smart Images
Figure CN223693392U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field technology of USB charger, especially to an interface assembly of a USB charging base. BACKGROUND
[0002] In recent years, the market size of mobile devices such as smart phones and tablet computers has experienced explosive growth, which has also helped the rapid rise of the surrounding product market, such as mobile power supplies, USB chargers, wires, wireless earphones, and sound boxes. As a device that provides power for mobile devices such as smart phones and tablet computers, the USB charger plays an indispensable role in the surrounding product market.
[0003] Currently, the USB ports of USB chargers on the market are usually divided into 1A1C, 1A2C, 2A2C, 3A1C, or 4A types. After investigating the USB chargers used by most people, it was found that people tend to use USB chargers with 1A1C USB ports.
[0004] However, the traditional charger that combines 1A1C USB ports usually has two extension pieces installed on the inner shell and the terminal and are lapped together. However, with the use of the USB charger and the impact of falling to the ground or table during use, the two extension pieces that are simply lapped together are prone to separation under impact. After separation, the grounding of the 1A interface fails, making static electricity and leakage unable to be directed to the ground, and causing failure of the 1A interface. SUMMARY
[0005] Therefore, the utility model provides an interface assembly of a USB charging base to solve the problem of the grounding of the A interface, which is usually handled by installing two extension pieces on the inner shell and the terminal and lapping them together. However, with the use of the USB charger and the impact of falling to the ground or table during use, the two extension pieces that are simply lapped together are prone to separation under impact. After separation, the grounding of the A interface fails, making static electricity and leakage unable to be directed to the ground, and causing failure of the A interface.
[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: an interface assembly of a USB charging base, comprising a main body, an A-type interface, and a C-type interface spaced apart above and below the main body, characterized in that: the A-type interface comprises a first grounding terminal and a first shielding shell in contact with the first grounding terminal.
[0007] The first grounding terminal extends in a first direction A with an extension part on one side, and the end of the extension part extends in a second direction B with a bearing part. The extension paths of the first direction A and the second direction B are different.
[0008] The first shielding shell extends with a lap joint, and two different sides of the lap joint are respectively connected with the extension part and the bearing part.
[0009] Further, the extension direction of the extension part is perpendicular to the insertion direction of the first grounding terminal, and the first contact surface of the extension part faces backward; the bearing part extends backward from the lower surface of the end of the extension part, and the second contact surface of the bearing part faces upward; the front end surface of the lap joint is in contact with the first contact surface, and the lower end surface of the lap joint is in contact with the second contact surface.
[0010] Further, the main body is provided with a step corresponding to the position of the bearing part, and the lower surface of the bearing part abuts on the step.
[0011] Further, the A-type interface includes a row of first conductive terminals located in the same horizontal plane as the first grounding terminal, the C-type interface includes two rows of second terminal groups arranged vertically, and the main body is provided with a rubber plug, and the first grounding terminal, the first conductive terminal and the second terminal group all pass through the rubber plug.
[0012] Further, the rubber plug has a first insertion hole and a second insertion hole, and the welding end of the first grounding terminal and the first conductive terminal is inserted into the first insertion hole, and the second terminal group is inserted into the second insertion hole.
[0013] Further, the first insertion hole and the second insertion hole are both designed as a horn mouth, and are divided into an expansion part and a horizontal part, the expansion part corresponds to the inner cavity of the main body, and the horizontal part is in close contact with the first grounding terminal, the first conductive terminal and the second terminal group.
[0014] Further, the two opposite side edges of the terminal in the second terminal group are provided with a first protruding part, and the width of the terminal provided with the first protruding part is longer than the width of the expansion part, so that when the first protruding part moves from the expansion part to the horizontal part, it is in close contact with the inner wall of the expansion part.
[0015] Further, the rear end surface of the main body is provided with a row of card slots arranged at equal intervals, and the first grounding terminal and the first conductive terminal pass through the card slots.
[0016] Further, the side edge of the first grounding terminal and the first conductive terminal at the connection with the card slot is provided with a second protruding part, and the second protruding part is in contact with the inner wall of the card slot.
[0017] Further, the second terminal group is divided into an upper half part and a lower half part, and the second insertion hole corresponding to the second terminal group includes a first part and a second part, the first part corresponds to the upper half part, and the second part corresponds to the lower half part.
[0018] The utility model discloses an improved USB charging seat, which is characterized by comprising a main body, a first grounding terminal, a first shielding shell, a second terminal group, a rubber plug and a second protruding part.
[0019] To make the structural characteristics and advantages of the utility model clearer, the utility model will be described in detail below with reference to the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 is the front view perspective drawing of embodiment 1 of the utility model.
[0021] Figure 2 is the back view perspective drawing of embodiment 1 of the utility model.
[0022] Figure 3 is the three-dimensional display drawing of the first shielding shell of embodiment 1 of the utility model.
[0023] Figure 4 is the three-dimensional display drawing of the first grounding terminal of embodiment 1 of the utility model.
[0024] Figure 5 is the side view of the first shielding shell of embodiment 1 of the utility model.
[0025] Figure 6 is the three-dimensional display drawing of the second terminal group of embodiment 1 of the utility model.
[0026] Figure 7 is the connection drawing of the second terminal group and the rubber plug of embodiment 1 of the utility model.
[0027] Figure 8 is the planing surface drawing of the rubber plug of embodiment 1 of the utility model.
[0028] BRIEF DESCRIPTION OF DRAWINGS
[0029] 10 main body, 11 step, 12 clamping groove;
[0030] 20 A type interface, 21 first grounding terminal, 22 first shielding shell, A first direction, B second direction, 23 extension, 231 first contact surface, 24 bearing part, 241 second contact surface, 25 lap joint part, 26 first conductive terminal, 27 second protruding part;
[0031] 30 C-type interface, 31 second terminal group, 311 first protruding part, 312 upper half, 313 lower half;
[0032] 40 rubber plug, 41 first socket, 42 second socket, 421 first part, 422 second part, 43 extension part, 44 horizontal part. DETAILED DESCRIPTION
[0033] Please refer to Figures 1-8 As shown in the figure, which shows the specific structure of the preferred first embodiment of the utility model, it is an interface assembly of USB charging stand, including main body 10 and A-type interface 20 and C-type interface 30 which are spaced apart on the main body 10, and its characterized in that: A-type interface 20 includes first ground terminal 21 and first shielding shell 22 which is in contact with first ground terminal 21;
[0034] Among them, one side of first ground terminal 21 extends to have extension 23 in first direction A, the end of extension 23 extends to have bearing part 24 in second direction B, and the extension paths of first direction A and second direction B are different;
[0035] First shielding shell 22 extends to have lap joint part 25, and two different sides of lap joint part 25 are respectively in contact with extension 23 and bearing part 24. In the interface assembly of the existing USB charging stand, the grounding of A-type interface is completed by two extension sheets which are lapped together between the inner shell and the terminal, and if the USB charging stand is dropped or impacted by external force when the user takes it, the two extension sheets are easily separated, so that static electricity and leakage cannot be introduced into the ground, and the USB charging stand is damaged. Compared with the prior art, the USB charging stand increases extension 23 on first ground terminal 21, and increases bearing part 24 on extension 23, and then increases lap joint part 25 on first shielding shell 22, lap joint part 25 and extension 23 are lapped together, when the USB charging stand is dropped or impacted by external force, lap joint part 25 and extension 23 are separated, because bearing part 24 lapped lap joint part 25 and extension 23, lap joint part 25 separated can be lapped with bearing part 24, so as to ensure that A-type interface 20 will not be affected by the separation of lap joint part 25 and extension 23, and the grounding of A-type interface 20 is affected.
[0036] As Figure 4As shown, the extension direction of the extension part 23 is perpendicular to the insertion direction of the first grounding terminal 21, and the first contact surface 231 of the extension part 23 faces backward; the bearing part 24 extends backward from the lower surface of the end of the extension part 23, and the second contact surface 241 of the bearing part 24 faces upward; the front end surface of the lapping part 25 is in contact with the first contact surface 231, and the lower end surface of the lapping part 25 is in contact with the second contact surface 241. Since the extension direction of the extension part 23 is perpendicular to the insertion direction of the first grounding terminal 21, the occupied area of the overall extension part 23 is reduced, making the overall USB charging base more beautiful. The first contact surface 231 of the extension part 23 faces backward, which is in contact with the lapping part 25 lapping the back of the extension part 23. Since the lapping part 25 is located on the back of the extension part 23, the extension direction of the bearing part 24 also faces backward and is in contact with the lapping part 25. In this way, the contact area of the lapping part 25, the bearing part 24 and the extension part 23 is increased, so as to reduce the grounding failure of the A-type interface 20 caused by the separation of the extension part 23 and the lapping part 25.
[0037] As shown in Figure 2 , the main body 10 is provided with a step 11 corresponding to the position of the bearing part 24, and the lower surface of the bearing part 24 abuts against the step 11. The step 11 on the main body 10 provides support for the bearing part 24, so that when the extension part 23 and the lapping part 25 are accidentally separated, the step 11 can limit the movement range of the extension part 23, so that the lapping part 25 can be connected with the extension part 23 as much as possible, to ensure the normal grounding of the A-type interface 20.
[0038] As shown in Figure 6 , the A-type interface 20 includes a row of first conductive terminals 26 located in the same horizontal plane as the first grounding terminal 21, the C-type interface 30 includes two rows of second terminal groups 31 arranged in an upper and lower interval, and the main body 10 is provided with a rubber plug 40. The first grounding terminal 21, the first conductive terminal 26 and the second terminal group 31 all pass through the rubber plug 40. The rubber plug 40 can clamp and position the first grounding terminal 21, the first conductive terminal 26 and the second terminal group 31, so as to avoid the first grounding terminal 21, the first conductive terminal 26 and the second terminal group 31 being easily moved under external force, thereby affecting the length deviation of the welding legs of the first grounding terminal 21, the first conductive terminal 26 and the second terminal group 31 during welding due to displacement.
[0039] The rubber plug 40 has a first insertion hole 41 and a second insertion hole 42, the soldering end of the first grounding terminal 21 and the first conductive terminal 26 are inserted into the first insertion hole 41, and the second terminal group 31 is inserted into the second insertion hole 42. Since the first grounding terminal 21 and the first conductive terminal 26 are different in size from the second terminal group 31, in order to facilitate the insertion of the first grounding terminal 21 and the first conductive terminal 26 through the rubber plug 40, the first insertion hole 41 corresponding to the first grounding terminal 21 and the first conductive terminal 26 and the second insertion hole 42 corresponding to the second terminal group 31 are formed on the rubber plug 40, so that the rubber plug 40 can be conveniently connected with the first grounding terminal 21, the first conductive terminal 26 and the second terminal group 31.
[0040] As shown in Figure 8 , the first insertion hole 41 and the second insertion hole 42 are both designed as trumpet-shaped, and are divided into an expansion part 43 and a horizontal part 44, the expansion part 43 corresponds to the inner cavity of the main body 10, and the horizontal part 44 is in close contact with the first grounding terminal 21, the first conductive terminal 26 and the second terminal group 31. In order to enable the rubber plug 40 to clamp and position the first grounding terminal 21, the first conductive terminal 26 and the second terminal group 31 inserted therein, the first insertion hole 41 and the second insertion hole 42 are designed as trumpet-shaped, and are divided into a trumpet-shaped expansion part 43 and a horizontal part 44 kept horizontal, the expansion part 43 corresponds to the inner cavity of the main body 10, so as to facilitate the insertion of the first grounding terminal 21, the first conductive terminal 26 and the second terminal group 31 into the expansion part 43, when the first grounding terminal 21, the first conductive terminal 26 and the second terminal group 31 inserted into the expansion part 43 move into the horizontal part 44, due to the close contact between the horizontal part 44 and the first grounding terminal 21, the first conductive terminal 26 and the second terminal group 31, the first grounding terminal 21, the first conductive terminal 26 and the second terminal group 31 have a greater resistance when moving in the horizontal part 44, and through the resistance, the first grounding terminal 21, the first conductive terminal 26 and the second terminal group 31 passing through the horizontal part 44 will not easily move during welding.
[0041] As shown in Figure 2As shown, the two opposite side edges of the terminals in the second terminal group 31 are provided with first protruding portions 311. The terminals provided with the first protruding portions 311 have a length greater than the width of the extension portion 43, so that when the first protruding portions 311 are moved from the extension portion 43 to the horizontal portion 44, the first protruding portions 311 are tightly fitted with the inner wall of the extension portion 43. To further strengthen the clamping and positioning of the terminals in the second terminal group 31 by the rubber plug 40, the first protruding portions 311 are integrally formed on the two side edges of the second terminal group 31. Since the extension portion 43 has a trumpet-shaped structure with a wide inlet and a narrow outlet, the first protruding portions 311 will not affect the insertion of the second terminals 32 into the extension portion 43. However, when the first protruding portions 311 on the two side edges of the second terminal group 31 are gradually moved to the outlet of the extension portion 43, the first protruding portions 311 are pressed against the inner wall of the extension portion 43 due to the reduced diameter of the outlet of the extension portion 43. In this way, the second terminal group 31 is further clamped and positioned, and the length of the second terminal group 31 passing through the rubber plug 40 is not excessive, which avoids the uneven welding of a row of second terminal groups 31 during welding.
[0042] As shown in Figure 2 , the rear end surface of the main body 10 is provided with a row of equally spaced card slots 12, and the first grounding terminals 21 and the first conductive terminals 26 pass through the card slots 12. The first grounding terminals 21 and the first conductive terminals 26 pass through the card slots 12 and are tightly fitted with the inner wall of the card slots 12, so as to increase the resistance required to be overcome by the first grounding terminals 21 and the first conductive terminals 26 during movement, thereby strengthening the clamping and positioning effect of the first grounding terminals 21 and the first conductive terminals 26.
[0043] As shown in Figure 7 , the side edges of the first grounding terminals 21 and the first conductive terminals 26 at the connection with the card slots 12 are provided with second protruding portions 27, and the second protruding portions 27 are in contact with the inner wall of the card slots 12. To further strengthen the clamping and positioning effect of the card slots 12 on the first grounding terminals 21 and the first conductive terminals 26, the second protruding portions 27 are integrally formed on the two side edges of the first grounding terminals 21 and the first conductive terminals 26. When the second protruding portions 27 are moved into the card slots 12, the second protruding portions 27 are pressed against the inner wall of the card slots 12, thereby further strengthening the clamping and positioning effect of the first grounding terminals 21 and the first conductive terminals 26.
[0044] The second terminal group 31 is divided into an upper half 312 and a lower half 313, and the second socket 42 corresponding to the second terminal group 31 comprises a first part 421 and a second part 422, the first part 421 corresponding to the upper half 312, and the second part 422 corresponding to the lower half 313. In order to adapt to the structure and characteristics of the C-shaped interface 30, the second terminal group 31 is divided into two rows of the upper half 312 and the lower half 313, and the second socket 42 is also divided into two independent first part 421 and second part 422, and is connected with the upper half 312 and the lower half 313.
[0045] The above is only a preferred embodiment of the present application, and does not limit the technical scope of the present application in any way. Any slight modification, equivalent change and modification of the above embodiment according to the technical essence of the present application still belongs to the scope of the technical scheme of the present application.
Claims
1. An interface assembly of a USB charging stand, comprising a main body (10) and an A-type interface (20) and a C-type interface (30) which are spaced apart from each other on the main body (10), characterized in that: The A-shaped interface (20) comprises a first grounding terminal (21) and a first shielding shell (22) in contact with the first grounding terminal (21); The side of the first grounding terminal (21) extends in a first direction (A) to form an extension (23), and the end of the extension (23) extends in a second direction (B) to form a bearing portion (24), the extension paths of the first direction (A) and the second direction (B) are different; The first shielding shell (22) extends to form an overlapping portion (25), and the two different sides of the overlapping portion (25) are in contact with the extension (23) and the bearing portion (24), respectively.
2. The interface assembly of claim 1, wherein: The extension direction of the extension (23) is perpendicular to the plug-in direction of the first grounding terminal (21), and the first contact surface (231) of the extension (23) faces backward; the lower surface of the end of the extension (23) extends backward to form the bearing portion (24), and the second contact surface (241) of the bearing portion (24) faces upward; the front end surface of the overlapping portion (25) is in contact with the first contact surface (231), and the lower end surface of the overlapping portion (25) is in contact with the second contact surface (241).
3. The interface assembly of claim 1, wherein: The main body (10) is provided with a step (11) corresponding to the position of the bearing portion (24), and the lower surface of the bearing portion (24) abuts against the step (11).
4. The interface assembly of claim 1, wherein: The A-shaped interface (20) comprises a row of first conductive terminals (26) located in the same horizontal plane as the first grounding terminal (21), the C-shaped interface (30) comprises two rows of second terminal groups (31) arranged vertically, and the main body (10) is provided with a rubber plug (40), the first grounding terminal (21), the first conductive terminal (26), and the second terminal group (31) all pass through the rubber plug (40).
5. The interface assembly of claim 4, wherein: The rubber plug (40) has a first socket (41) and a second socket (42), the welding end of the first grounding terminal (21) and the first conductive terminal (26) passes through the first socket (41), and the second terminal group (31) passes through the second socket (42).
6. The interface assembly of claim 5, wherein: Both the first socket (41) and the second socket (42) are designed as trumpet mouths and are divided into an expansion part (43) and a horizontal part (44), the expansion part (43) corresponds to the inner cavity of the main body (10), and the horizontal part (44) is in close contact with the first grounding terminal (21), the first conductive terminal (26), and the second terminal group (31).
7. The interface assembly of claim 6, wherein: The two opposite side edges of the terminal in the second terminal group (31) are provided with a first protruding portion (311), and the width of the terminal provided with the first protruding portion (311) is longer than the width of the expansion part (43), so that when the first protruding portion (311) moves from the expansion part (43) to the horizontal part (44), it is tightly fitted with the inner wall of the expansion part (43).
8. The interface assembly of claim 7, wherein: The rear end surface of the main body (10) is provided with a row of equally spaced clamping grooves (12), and the first grounding terminal (21) and the first conductive terminal (26) pass through the clamping grooves (12).
9. The interface assembly of claim 8, wherein: The side edge of the first grounding terminal (21) and the first conductive terminal (26) at the connection with the card slot (12) is provided with a second protruding part (27) which is in abutment with the inner wall of the card slot (12).
10. The interface assembly of claim 7, wherein: The second terminal group (31) is divided into an upper half part (312) and a lower half part (313), and the second socket (42) corresponding to the second terminal group (31) comprises a first part (421) and a second part (422), the first part (421) corresponding to the upper half part (312), and the second part (422) corresponding to the lower half part (313).