USB interface device

Abstract

The utility model discloses a universal serial bus (USB) interface device, which comprises a first main body and a second main body which are detachable. The first main body is locked with the second main body through a composite interlocking structure, the interlocking structure limits the uniqueness of the assembly direction through main buckling grooves and auxiliary positioning bosses which are asymmetrically distributed, and a tolerance guide groove provides clearance fit so as to reduce the machining precision requirement. The open cover adopts a hinge shaft hollow design, so that the weight is reduced and the heat dissipation is enhanced; and the ladder-shaped cover opening groove is matched with the peak-shaped buckle, so that the operation is simplified. The light weight and the heat dissipation performance are optimized through the bottom hollowed-out ring and the plastic material. The utility model solves the problems of complex disassembly, insufficient stability and low heat dissipation efficiency of the traditional device, and is suitable for connection scenes of various electronic devices.

Description

Technical Field

[0001] This utility model relates to the field of interfaces, and more particularly to a USB interface device. Background Technology

[0002] With the rapid development of technology and the popularization of smart living, mobile devices have become indispensable tools in modern people's daily lives. However, the frequent use of such functions relies on high-energy-consuming hardware and software support, leading to rapid battery depletion and higher demands from users for extended battery life. Currently, to extend the battery life of mobile devices, traditional USB interface devices generally adopt fixed structures or simple snap-fit ​​connections, making it difficult for users to quickly replace parts and resulting in high maintenance costs. Ordinary snap-fits are prone to loosening due to long-term use or external force, causing poor interface contact or accidental disconnection, affecting data transmission reliability. In addition, when the assembly direction is not uniquely restricted, misoperation can easily lead to structural misalignment, increasing the risk of functional failure. While a closed design can protect internal components, it hinders heat dissipation, and long-term use can lead to heat accumulation affecting device stability.

[0003] Therefore, there is an urgent need for a new type of USB interface device that can solve problems such as inconvenient disassembly, insufficient connection stability, and low heat dissipation efficiency through structural optimization. Utility Model Content

[0004] This invention aims to address the technical shortcomings of traditional USB interface devices, such as complex disassembly processes, insufficient connection stability, poor assembly tolerance, and limited heat dissipation performance, and provides an improved solution that combines rapid disassembly and assembly, high reliability, and efficient heat dissipation.

[0005] This utility model provides a USB interface device, including a first body and a second body. The first body includes a base plate, a receiving cavity, a USB interface structure placed inside the first body, and a cover. The second body is configured to detachably accommodate the first body and is tightly fitted to the first body through a snap-fit ​​structure. The openings of the first body and the second body both extend outward to form a first contact surface and a second contact surface. The first contact surface and the second contact surface lock the first body and the second body through a composite misaligned interlocking structure.

[0006] It should be noted that the second body can be detachably wrapped around the first body and forms a tight fit with the first body through a composite interlocking structure.

[0007] Preferably, the composite misaligned interlocking structure includes a main engagement groove, an auxiliary positioning boss and a corresponding main engagement boss and a tolerance guide groove, and the first contact surface and the second contact surface restrict the uniqueness of the assembly direction through an asymmetrical phase distribution.

[0008] Preferably, the second contact surface is provided with alternating main engagement grooves and auxiliary positioning bosses, and the main engagement grooves and auxiliary positioning bosses are staggered. The first contact surface is provided with a main engagement boss that corresponds to and cooperates with the main engagement groove, and a tolerance guide groove that accommodates the auxiliary positioning boss. The width of the tolerance guide groove is greater than the diameter of the auxiliary positioning boss to form a clearance fit.

[0009] It should be noted that the composite interlocking structure is located on the contact surface between the first and second main bodies, including staggered main engagement grooves and auxiliary positioning bosses, as well as corresponding main engagement bosses and tolerance guide grooves. The main engagement grooves and auxiliary positioning bosses are asymmetrically distributed, forcibly limiting the uniqueness of the assembly direction and avoiding misoperation; the width of the tolerance guide groove is slightly larger than the diameter of the auxiliary positioning boss, forming a clearance fit, reducing the machining accuracy requirements, and improving assembly fault tolerance.

[0010] Preferably, the first body is placed inside the second body via a slot-type housing, and the opening direction of the cover is consistent with the direction in which the second body houses the first body, and both are top-opening.

[0011] Preferably, the cover is hinged to the receiving cavity via a hinge shaft, and the opening edge of the cover is provided with a trapezoidal opening groove for cooperating opening.

[0012] It should be noted that the lid is connected to the receiving cavity via a hinge shaft, and the edge of the lid has a trapezoidal opening groove to facilitate one-handed operation by applying force with fingers;

[0013] Preferably, the hinge shaft has a first hollow area extending axially on its central axis, and a second hollow area extending through the shaft is symmetrically distributed on both sides of the axis.

[0014] The hinge shaft has a first hollow area extending axially in the center, and a second hollow area with through-type structures symmetrically distributed on both sides. The hollow design reduces weight and enhances heat dissipation efficiency.

[0015] Preferably, the inner side of the cover is provided with a mountain-shaped buckle, and there are two buckles symmetrically distributed on both sides of the bottom edge of the cover. The receiving cavity is provided with a locking groove for engaging with the buckle and locking with the corresponding groove of the receiving cavity.

[0016] It should be noted that the symmetrically distributed mountain-shaped buckles on the inside of the cover engage with the slots of the receiving cavity to lock in place, ensuring a secure fit.

[0017] Preferably, both the first body and the second body have corresponding hollow rings around their bottom perimeter.

[0018] It should be noted that the bottom of the first and second main bodies is provided with hollow rings. The hollow rings prevent the first main body from being placed on the second main body, thus reducing the pressure of assembling and disassembling the first and second main bodies. At the same time, by reducing the amount of material used to reduce the overall weight, it can also help dissipate heat.

[0019] Preferably, the base plate of the first body is connected to the first body using a tenon and mortise structure so that the USB interface structure is fixed inside the first body. The side of the first body is provided with a data cable interface for connecting the USB interface structure, and the second body is provided with a data cable outlet at a matching opening position.

[0020] Preferably, the first body and the second body are made of plastic.

[0021] It should be noted that, apart from the USB interface structure, the entire device is made of plastic. The injection molding process achieves lightweight and low-cost production, and its insulation properties further ensure safety during use.

[0022] The technical solution provided by this utility model has the following beneficial effects:

[0023] 1. The composite interlocking structure significantly improves connection stability, and the asymmetrical distribution design forces the assembly direction to be unique, avoiding misalignment caused by misoperation; the clearance fit of the tolerance guide groove reduces the processing difficulty and improves production yield.

[0024] 2. The combination of the bottom hollow ring and plastic material further optimizes lightweight design and heat dissipation efficiency, balancing functionality and economy;

[0025] 3. The hollow design of the hinge shaft reduces the weight of the device. The trapezoidal opening groove and the mountain-shaped buckle work together to simplify the opening operation process, improve the reliability of the fastening, and extend the service life of the product. Attached Figure Description

[0026] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally represent like parts.

[0027] Figure 1 : A schematic diagram of the structure of a USB interface device;

[0028] Figure 2 : A schematic diagram of the structure of the first main body of the USB interface device;

[0029] Figure 3 : A schematic diagram of the structure of the second main body of the USB interface device;

[0030] Figure 4 : A schematic diagram of the rear structure of the first main body of the USB interface device.

[0031] Explanation of markings in the diagram: 1. First subject;

[0032] 2. Second subject;

[0033] 3. Base plate;

[0034] 4. To accommodate the cavity;

[0035] 5. USB interface structure;

[0036] 6. Open the lid;

[0037] 7. First contact surface;

[0038] 8. Second contact surface;

[0039] 9. Main fastening groove;

[0040] 10. Auxiliary positioning boss;

[0041] 11. Tolerance guide groove;

[0042] 12. Main engagement boss;

[0043] 13. Hinge shaft;

[0044] 14. Open the cover groove;

[0045] 15. First hollowed-out area;

[0046] 16. Second hollow area

[0047] 17. Buckle;

[0048] 18. Card slot;

[0049] 19. Hollowed-out ring;

[0050] 20. Data cable interface;

[0051] 21. Data cable outlet; Detailed Implementation

[0052] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0053] It should be understood that although the terms "first," "second," "third," etc., may be used in this invention to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this invention, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0054] To address the aforementioned issues, this utility model provides a USB interface device that combines quick assembly / disassembly, high reliability, and efficient heat dissipation.

[0055] The technical solutions of the embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0056] See Figures 1 to 2 A USB interface device includes a first body 1 and a second body 2. The first body 1 includes a base plate 3, a receiving cavity 4, a USB interface structure 5 placed inside the first body 1, and a cover 6. The second body 2 is configured to detachably accommodate the first body 1 and is tightly fitted to the first body 1 by a snap-fit ​​structure. The openings of the first body 1 and the second body 2 both extend outward to form a first contact surface 7 and a second contact surface 8. The first contact surface 7 and the second contact surface 8 are locked to the first body 1 and the second body 2 by a composite misaligned interlocking structure.

[0057] To achieve the goal of quick assembly and disassembly in this embodiment, a composite staggered interlocking structure is used to achieve a stable connection and quick disassembly between the first and second main bodies. At the same time, when the USB interface device needs to be replaced, the first main body can simply be removed from the second main body, achieving a quick replacement effect.

[0058] The composite misaligned interlocking structure includes a main engaging groove 9, an auxiliary positioning boss 10 and corresponding main engaging boss 12 and tolerance guide groove 11. The first contact surface 7 and the second contact surface 8 restrict the uniqueness of the assembly direction through an asymmetrical phase distribution. This further clarifies the specific composition of the composite misaligned interlocking structure, ensuring the uniqueness of the assembly direction through an asymmetrical phase distribution.

[0059] The second contact surface 8 has alternating main engagement grooves 9 and auxiliary positioning bosses 10, and the main engagement grooves 9 and auxiliary positioning bosses 10 are staggered. The first contact surface 7 has a main engagement boss 12 that corresponds to and cooperates with the main engagement grooves 9, and a tolerance guide groove 11 that accommodates the auxiliary positioning bosses 10. The width of the tolerance guide groove 11 is greater than the diameter of the auxiliary positioning bosses 10 to form a clearance fit.

[0060] The composite interlocking structure can significantly improve the connection stability and reduce the processing difficulty. The interference fit between the main engagement boss and the main engagement groove forms a rigid constraint. The clearance fit between the auxiliary positioning boss and the tolerance guide groove provides single-degree-of-freedom axial alignment. Furthermore, the two contact surfaces restrict the uniqueness of the assembly direction through asymmetrical phase distribution.

[0061] The first main body 1 is housed within the second main body 2 via a slot-type fitting. The opening direction of the cover 6 is consistent with the direction in which the second main body 2 accommodates the first main body 1, and both are top-opening. The purpose is to ensure consistent assembly direction. The slot-type structure of the first main body accommodates the second main body, ensuring convenient assembly and operation.

[0062] The cover 6 is hinged to the receiving cavity 4 via a hinge shaft 13, and the opening edge of the cover 6 is provided with a trapezoidal opening groove 14 for cooperating opening. The design of the hinge shaft and trapezoidal opening groove allows for one-handed operation, optimizing the ergonomic experience of opening the cover.

[0063] The hinge shaft 13 has a first hollow area 15 extending axially along its central axis, and second hollow areas 16 symmetrically distributed on both sides of the axis. To improve the practicality and durability of the embodiment, the first hollow area is used to disperse stress concentration at the hinge joint and prevent fatigue fracture; the second hollow area is also used to alleviate stress concentration during the machining or assembly of the hinge shaft.

[0064] The inner side of the cover 6 is provided with two mountain-shaped buckles 17, which are symmetrically distributed on both sides of the bottom edge of the cover 6. The receiving cavity 4 is provided with a locking groove 18 that engages with the buckles 17 for locking. The symmetrically distributed mountain-shaped buckles improve the stability of the fastening and the balance of force.

[0065] Both the first main body 1 and the second main body 2 have corresponding hollow rings 19 around their bottom perimeter. The bottom hollow rings further reduce weight and assist in heat dissipation, while also reducing the extrusion pressure during the assembly and disassembly of the first and second main bodies.

[0066] The base plate 3 of the first main body 1 is connected to the first main body 1 using a mortise and tenon structure, so that the USB interface structure 5 is fixed inside the first main body 1. The side of the first main body 1 is provided with a data cable interface 20 for connecting the USB interface structure 5, and the second main body 2 is provided with a data cable outlet 21 that matches the opening. The USB interface is fixed by a mortise and tenon structure, without other assembly parts, to prevent internal loosening.

[0067] The first main body 1 and the second main body 2 are made of plastic. Except for the USB interface structure, the entire device is made of plastic, taking into account lightweight, insulation and economy.

[0068] During assembly, the first main body is inserted into the second main body along the slot direction, so that the main locking boss is embedded into the main locking groove, and the auxiliary positioning boss enters the tolerance guide groove to complete the locking. When opening is required, the cover is lifted by applying force through the trapezoidal opening slot, and the mountain-shaped buckle separates from the slot, achieving quick opening. The hollow area of ​​the hinge shaft and the hollow ring at the bottom work together to ensure efficient heat dissipation while reducing the overall weight. The plastic material is molded using an injection molding process, balancing structural strength and production cost.

[0069] This utility model achieves the following significant effects through the above structural design:

[0070] 1. The composite misaligned interlocking structure restricts the uniqueness of the assembly direction through asymmetrical phase distribution, avoiding misoperation. At the same time, the precise fit between the main engagement boss and the groove significantly improves the connection stability. The gap design between the auxiliary positioning boss and the tolerance guide groove reduces the production accuracy requirements and improves the yield.

[0071] 2. The hollow design of the hinge shaft reduces the weight of the device and enhances heat dissipation, thus extending the service life of the device;

[0072] 3. The mountain-shaped buckle and the trapezoidal opening groove work together to make opening the lid easier and the fastening more reliable;

[0073] 4. The plastic materials of the first and second main bodies have been further optimized for lightweighting and heat dissipation, reducing manufacturing costs.

[0074] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A USB interface device, comprising a first body (1) and a second body (2), wherein the first body (1) includes a base plate (3), a receiving cavity (4), a USB interface structure (5) disposed inside the first body (1), and a cover (6), characterized in that, The second body (2) is configured to detachably accommodate the first body (1) and fit tightly with the first body (1) through a snap-fit ​​structure. The openings of the first body (1) and the second body (2) extend outward to form a first contact surface (7) and a second contact surface (8). The first contact surface (7) and the second contact surface (8) lock the first body (1) and the second body (2) through a composite misaligned interlocking structure.

2. The USB interface device according to claim 1, characterized in that: The composite misaligned interlocking structure includes a main engagement groove (9), an auxiliary positioning boss (10), and a corresponding main engagement boss (12) and a tolerance guide groove (11). The first contact surface (7) and the second contact surface (8) restrict the uniqueness of the assembly direction through asymmetrical phase distribution.

3. A USB interface device according to claim 2, characterized in that: The second contact surface (8) has alternating main engagement grooves (9) and auxiliary positioning bosses (10), and the main engagement grooves (9) and auxiliary positioning bosses (10) are staggered. The first contact surface (7) has a main engagement boss (12) that corresponds to the main engagement groove (9) and a tolerance guide groove (11) that accommodates the auxiliary positioning boss (10). The width of the tolerance guide groove (11) is greater than the diameter of the auxiliary positioning boss (10) to form a clearance fit.

4. A USB interface device according to claim 3, characterized in that: The first body (1) is placed inside the second body (2) by a slot-type housing. The opening direction of the cover (6) is consistent with the direction in which the second body (2) houses the first body (1) and both are top openings.

5. A USB interface device according to claim 1, characterized in that: The cover (6) is hinged to the receiving cavity (4) via a hinge shaft (13), and the opening edge of the cover (6) is provided with a trapezoidal opening groove (14) for opening.

6. A USB interface device according to claim 5, characterized in that: The hinge shaft (13) has a first hollow area (15) extending axially on its central axis, and a second hollow area (16) is symmetrically distributed on both sides of the axis.

7. A USB interface device according to claim 5, characterized in that: The inner side of the cover (6) is provided with a mountain-shaped buckle (17). There are two buckles (17) and they are symmetrically distributed on both sides of the bottom edge of the cover (6). The receiving cavity (4) is provided with a locking groove (18) for engaging the buckle (17) for locking.

8. A USB interface device according to claim 1, characterized in that: The bottom of the first body (1) and the second body (2) are provided with corresponding hollow rings (19).

9. The USB interface device according to claim 1, characterized in that: The base plate (3) of the first body (1) is connected to the first body (1) by a tenon and mortise structure so that the USB interface structure (5) is fixed inside the first body (1). The side of the first body (1) is provided with a data cable interface (20) for connecting the USB interface structure (5), and the second body (2) is provided with a data cable outlet (21) that matches the opening position.

10. A USB interface device according to any one of claims 1-9, characterized in that: The first body (1) and the second body (2) are made of plastic.

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