CN201294293Y - USB connector - Google Patents

Abstract

The utility model provides a USB connector, comprising: a first shell; a second shell; an insulating body; at least one conductive terminal arranged on the insulating body; a metal shell is arranged on the first shell part, the metal shell part wraps the insulating body provided with the conductive terminal, wherein: the first shell and the second shell are connected by a buckle. A stable matching structure is obtained by snap-fitting the first shell and the second shell. The matching structure can cope with unexpected large pulling force or frequent plugging with external devices, and provides good protection for the connection between the first shell and the second shell, and is not easy to fall off, thereby improving the connection Quality and longevity of this USB connector.

Description

usb connector

technical field

The utility model relates to an electric connector, in particular to an improved USB connector used for mobile communication devices, computers and the like.

Background technique

With the trend of miniaturization and multi-functionalization of electronic equipment, the demand for electrical connectors is gradually increasing. The electrical connectors need to have strong signal transmission capabilities, and have the characteristics of miniaturization and simplification of structure. At present, the Universal Serial Bus (USB) connector has become a commonly used input/output interface, and is popularized in portable electronic products such as mobile phones, MP3 players, and GPS navigators. The Ministry of Information Industry of the People's Republic of China also officially released my country's first mobile phone charger and interface technology standard to limit the connector method of the charger. USB connectors, especially mini-USB connectors, have been used more and more in actual production.

Micro USB connector is often used for charging and/or data transmission between mobile phones, digital cameras and other products and computers. It combines the traditional MINI USB connector and headphone plug connector together, and has the characteristics of small size and strong function.

The existing micro-USB connector includes a first shell 1' and a second shell 2' combined with each other, the first end of the first shell 1' is provided with an insulating body 5', fixed on the insulating body The conductive terminal 4' on the 5' and the metal shell part 3' covering the insulating body 5'. The conductive terminal 4' is installed on the insulating body 5' and the metal shell part 3' covers the insulating body 5', so that good protection and electromagnetic shielding effect can be improved. Simultaneously, the insulating body 5' welded with the PCB board (not shown) and the wire is accommodated in the metal shell part 3', and then the second shell 2' covers the second end of the first shell 1', and The structure is fixed with glue in the subsequent injection moulding.

However, the disadvantage of this structure is that due to the limitation of the combination of the first shell 1' and the second shell 2', the parts that are combined with each other are loose and easily fall off, thus affecting the connection quality and service life of the USB connector. In addition, during the injection molding process, the colloid can easily enter the internal space through the gap of the connection structure, which may cause structural deformation or misalignment of the assembled connector, and reduce the yield of the product.

Utility model content

Therefore, the purpose of this utility model is to solve the technical problem of the unreliable connection part of the USB connector, and to provide a USB connector with reliable connection and long service life.

In order to achieve the above purpose of the utility model, the utility model provides a USB connector, comprising: a first shell; a second shell; an insulating body; at least one conductive terminal arranged on the insulating body; A shell is provided with a metal shell, and the metal shell covers the insulating body provided with the conductive terminals, wherein: the first shell and the second shell are connected by buckles.

By snap-fitting the first shell and the second shell, the USB connector according to the present invention obtains a stable mating structure. The matching structure can cope with unexpected large pulling force or frequent plugging with external devices, and provides good protection for the connection between the first shell and the second shell, and makes it difficult for the shells connected to each other to occur fall off, thereby improving the quality and service life of the connector.

Additional aspects and advantages of the present invention will be set forth in part in the description which follows, and part will be apparent from the description which follows, or can be learned by practice of the present invention.

Description of drawings

The above-mentioned and/or additional aspects and advantages of the present utility model will become apparent and easy to understand from the following description of the embodiments in conjunction with the accompanying drawings, wherein:

Fig. 1 is a three-dimensional schematic diagram according to an existing micro-USB connector;

Fig. 2 is a three-dimensional schematic diagram of a micro-USB connector according to an embodiment of the present invention;

Fig. 3 is a three-dimensional exploded view of a micro-USB connector according to an embodiment of the present invention;

Fig. 4a, 4b are the front view exploded view and the side view exploded view of the micro USB connector of the present utility model of the micro USB connector according to an embodiment of the present utility model; And

5a, 5b are the front view and side view of the micro USB connector of the present invention after assembly according to an embodiment of the present invention.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout.

A micro-USB connector will be disclosed in the specific embodiments of the present invention below, which is suitable for charging and/or data transmission of portable electronic devices such as mobile communication devices. In this embodiment, however, it is obvious to those skilled in the art that the micro-USB connector can be applied to any other types of USB connectors or structures that require USB connection, especially in the communication field. Therefore, the description of the following specific embodiments is only for the purpose of illustration, and should not be regarded as limiting the protection scope of the present utility model.

An embodiment of the present utility model will be described in detail below with reference to FIGS. 2 and 3 . Wherein, FIG. 2 is a perspective view of a micro USB connector according to an embodiment of the present invention. Fig. 3 is an exploded perspective view of a micro-USB connector according to an embodiment of the present invention.

As shown in Figure 2, according to an embodiment of the present utility model, the micro-USB connector includes: a first shell 1; a second shell 2; an insulating body 5; at least A conductive terminal 4; the first shell is provided with a metal shell part 3, and the metal shell part 3 covers the insulating body 5 provided with the conductive terminal 4, the first shell 1 and the second The housing 2 is connected by a buckle, as shown in the middle connection part in FIG. 2 .

As shown in detail in Fig. 3, the left side of the first housing 1 is formed with a metal shell 3, and the metal shell needs to meet the standard requirements of the MINI-USB connector interface, thus for the sake of brevity and without affecting the present invention. The elaboration of the main points of the utility model, its detailed structure is not described in further detail here. A bottom portion 101 extends outward from the bottom of the metal shell portion 3 , and a lateral side portion 102 is formed on a lateral side of the bottom portion 101 . On the right side (second end) of the first housing 1 , extending outward from the bottom portion 101 is formed a lower wire fixing portion 105 (located at the second end of the second housing 2 ). The metal shell part 3 of the first housing 1 is provided with a card slot 104, which is used for snap connection with the hook 201 (will be described in detail later) provided on the second housing 2, and the card slot 104 The hook 201 is disposed at the left end (first end) of the second housing 2 . The hooks 201 respectively extend outward from lateral sides at the left end (first end) of the second housing 2 .

Terminal accommodating grooves 501 are respectively formed on the insulating body 5 shown in FIG. The shell part is electrically connected with the terminal 4 disposed in the terminal receiving groove 501 . The number of the terminals 4 can vary according to the requirements of specific electronic products. Meanwhile, the insulating body 5 is provided with a terminal positioning portion 503 , and the terminal 4 can be fixed in the terminal receiving groove 501 through a hole (not shown) on the terminal positioning portion 503 .

The second housing 2 has a top portion 202, two lateral side portions 206 extending vertically downward from the top portion, and two hooks 201 extending outward from the lateral side portions 206, in order to pull the hooks 201 from the The inner side of the first housing 1 protrudes into and engages with the slot 104 , the hook formed on the lateral side portion 206 is slightly offset inward, and a front end of the hook 201 is formed with a The protrusion protruding upwards is used for firmly engaging with the engaging slot 104 . Thus, the first shell 1 and the second shell 2 can form a stable matching structure, even in the case of accidental large pulling force or frequent plugging and unplugging, the matching structure can also ensure that the first shell and the second shell The second shell will not fall off, thereby improving the connection quality and the service life of the micro-USB connector.

Further, those of ordinary skill can make changes to the above-mentioned structure, for example, a hook extending outwards can be formed from the top surface of the right side of the metal shell 4, that is, the hook 201 extends from the metal shell 4. The top side of 4 extends outwards, and a card slot is formed on the top surface 202 of the second housing 2, the hook is slightly offset downwards and can pass under the top part 202 of the second housing 2 And engage with the card slot formed on the top part 202 , so that the similar technical effect as above can be obtained.

Further, in order to strengthen the above-mentioned clamping effect, protrusions 203 are respectively formed on the two lateral side parts 206 of the second housing 2, and correspondingly on the right side of the first housing 1 (second Two lateral side portions 102 of two ends) are provided with opening grooves 103 corresponding to the protrusions 203, so that when assembled, the protrusions 203 are snap-engaged with the opening grooves 103, thereby further enhancing the above-mentioned Hermetic joint effect.

However, as mentioned above, those skilled in the art can make changes to the arrangement of the opening groove 103 and the protrusion 203 . For example, a protrusion 103' is formed on the lateral side part 102, and the opening groove 203' is formed on the lateral side part 206. Therefore, the protrusion 103' and the opening groove 203' can be locked inside.

In addition, the right side of the top part 202 is extended outwardly with an upper wire fixing part 205 , and the upper wire fixing part 205 cooperates with the lower wire fixing part 105 for accommodating the inserted wires. In an embodiment according to the present invention, the combined cross section of the upper wire fixing part 205 and the lower wire fixing part 105 can be formed into a shape suitable for bonding with wires, such as a circle, an ellipse, and the like.

Figures 4a and 4b show a front exploded view and a side exploded view of the micro USB connector of the present invention according to an embodiment of the present invention. Figures 5a and 5b show a front view and a side view of the micro USB connector of the present invention after assembly according to an embodiment of the present invention. In Figs. 4-5, the insulating body 4 provided with the terminals 4 is first inserted into the first housing 1, as shown in Figs. 4a, 4b. Then the assembled first shell 1 is snapped connected with the second shell 2, wherein the hook 201 is snapped into the slot 104, and the protrusion 203 is snapped into the opening slot 103. Figures 5a and 5b show the micro-USB connector after assembly, wherein a wire is bonded between the upper wire fixing part 205 and the lower wire fixing part 105 after assembly. Then, the assembled micro-USB connector is put into a suitable mold for injection molding and forms a product with a suitable shape. Due to the good snap fit between the first shell 1 and the second shell 2, it is difficult for the colloid to enter the internal space of the micro-USB connector through the gap of the matching structure during the injection molding process, so as not to It will lead to structural deformation or dislocation of the assembled connector, thereby ensuring the yield of the product.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (11)

1. A USB connector, comprising: first shell; second shell; insulating body; At least one conductive terminal provided on the insulating body; the first shell is provided with a metal shell part, and the metal shell part covers the insulating body provided with the conductive terminal, which is characterized in that: The first shell and the second shell are connected by a buckle. 2. The USB connector according to claim 1, wherein at least one hook extends from the first end of the second housing, and the metal shell of the first housing is provided with a slot, The slot is adapted to the hook, and the hook protrudes into the first housing and is snap-connected with the slot. 3. The USB connector according to claim 1, wherein at least one hook extends from the metal shell of the first shell, and a slot is provided at the first end of the second shell , the slot is adapted to the hook, and the hook extends into the second housing and is snap-connected with the slot. 4 . The USB connector according to claim 2 , wherein the hooks respectively extend outward from lateral sides at the first end of the second housing. 5. The USB connector according to claim 3, wherein the hook extends outward from the top side of the metal shell. 6. The USB connector according to claim 2 or 3, wherein the hook is an elastic hook. 7. The USB connector according to claim 1, wherein protrusions are respectively provided on the two lateral sides of the second housing, and the side wall at the second end of the first housing Open slots corresponding to the protrusions are provided on the top, and the protrusions snap engage with the opening slots. 8. The USB connector according to claim 1, wherein opening grooves are respectively provided on the two lateral sides of the second housing, and the inner side wall at the second end of the first housing A protrusion corresponding to the opening groove is provided on the top, and the protrusion engages inwardly with the opening groove. 9. The USB connector according to claim 1, wherein the second end of the second housing is provided with an upper wire fixing portion. 10. The USB connector according to claim 9, characterized in that, the bottom surface at the second end of the first housing is provided with a lower wire fixing portion extending outward, and the lower wire fixing portion is connected to the lower wire fixing portion. The upper wire fixing portion cooperates to fix the wire. 11. The USB connector according to claim 1, wherein the USB connector is a micro USB connector.

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