CN201690007U - Electronic device with connecting interface - Google Patents

Abstract

The utility model relates to an electronic device with connection interface, including a plurality of elastic terminals and a circuit substrate. Wherein, each elastic terminal comprises an inserting part, a lifting section and a contact part. In addition, the circuit substrate comprises a plurality of fixing slots, and the inserting parts of the elastic terminals are respectively inserted into the fixing slots of the circuit substrate and are respectively fixed and electrically connected to the gold-plated layer in the fixing slots through solder. In addition, the lifting section of each elastic terminal extends outwards along the radial direction from the corresponding fixed slot and lifts away from the circuit substrate, so that the solder is not adhered between the lifting section and the circuit substrate. Therefore, the utility model discloses can improve electric contact's reliability by a wide margin, and life, and simple structure, equipment convenience can effective reduce cost.

Description

Electronic device with connection interface

technical field

The utility model relates to an electronic device with a connection interface, in particular to an electronic device, an electronic card, or a memory card suitable for the connection interface.

Background technique

With the continuous innovation of portable electronic devices, electronic cards, or other electronic equipment, the connector interface specifications are also constantly changing, such as the Universal Serial Bus (Universal Serial Bus, referred to as "USB"), whose specification is from the early USB1. 0 to USB2.0, has developed to USB3.0 today, and will continue to develop in the future.

The current common connection interface can refer to an electronic device disclosed in the US patent application US2009/0093136A1 published on April 9, 2009. Please refer to Fig. 5 for the exploded view of this case, and Fig. 5 is an exploded view of the known technology. As shown in the figure, the electronic device includes a circuit board 90 , and the circuit board 90 is provided with a plurality of metal conductive sheets 91 and a plurality of slots 92 behind the metal conductive sheets. In addition, there is a terminal seat 93 below, and a plurality of elastic terminals 94 are arranged on the upper surface thereof. The terminal base 93 is fixed upward on the lower surface of the circuit board 90 , and a plurality of elastic terminals 94 protrude corresponding to the plurality of slots 92 to facilitate electrical contact.

Wherein, two side ends 941 of each elastic terminal 94 are respectively welded to the terminal base 93 , and the arched portion is the contact portion 942 . However, because the two side ends 941 of each elastic terminal 94 are all welded and fixed, when the electronic device is inserted into the socket connector, when the contact portion 942 is deformed, the two side ends 941 will have a downward or sideward effect. Therefore, the two side ends 941 of the elastic terminal 94 are easy to loosen on the circuit board 90, thereby affecting the reliability of the electrical contact.

Utility model content

The purpose of the utility model is to provide an electronic device with a connection interface, which can greatly improve the reliability of electrical contact and service life, and has a simple structure, convenient assembly, and can effectively reduce costs.

The utility model relates to an electronic device with a connection interface, comprising: a plurality of elastic terminals and a circuit substrate. Wherein, each elastic terminal includes an insertion portion, a lifting portion, and a contact portion, and the lifting portion is adjacent to the insertion portion, and the lifting portion is interposed between the insertion portion and the contacting portion. In addition, the circuit substrate includes a plurality of fixing slots, and each fixing slot is provided with a gold-plated layer. Wherein, the insertion parts of the plurality of elastic terminals are respectively inserted into the plurality of fixing slots of the circuit board, and are respectively fixed and electrically connected to the gold-plated layers in the plurality of fixing slots by solder. In addition, the lifting section of each elastic terminal extends radially outward from its corresponding fixing slot and lifts away from the circuit substrate, so that solder does not adhere between the lifting section and the circuit substrate. Accordingly, the utility model can greatly improve the reliability and service life of the electrical contact, has a simple structure, is convenient to assemble, and can effectively reduce costs.

Wherein, the circuit board of the present utility model may further include a plurality of contact portion accommodation grooves, and the contact portions of the plurality of elastic terminals correspond to the plurality of contact portion accommodation grooves respectively, and can be selectively accommodated in the plurality of contact portion accommodation in the slot. Accordingly, the utility model has a storage space for the deformation of the contact part of the elastic terminal, which can reduce the stress of the insertion part during electrical contact, avoid loosening, and greatly improve the reliability and service life of the electrical contact. Moreover, each elastic terminal of the present invention further includes at least one supporting section, which is adjacent to the insertion portion and relative to the lifting section, and is used to increase the supporting force of the elastic terminal.

Furthermore, the lifting section of each elastic terminal of the present invention can include an arc section to improve the lifting contact portion, which can not only provide a partial elastic effect, but also prevent the solder from spreading and climbing up along the elastic terminal. In addition, the lifting section of each elastic terminal may also include a reversing section, which is also mainly used to prevent the solder from spreading and climbing up along the elastic terminal during the soldering process. Moreover, the contact portion of each elastic terminal of the present invention may include an arc-shaped contact portion, a tapered contact portion, or any other equivalent geometric polygonal contact portion.

Furthermore, the gold-plated layer of the present invention may further include an extension layer extending on the upper surface of the circuit substrate, and the insertion portion of each elastic terminal includes an extension plate extending on the extension layer of the gold-plated layer and are electrically connected to each other. According to this, the extension layer of the gold-plated layer and the extension plate of the elastic terminal in the utility model can not only greatly increase the electrical contact area and greatly improve the reliability, but also increase the welding joint force due to the increase of the electrical contact area, and then Significantly increased service life.

In addition, the circuit substrate of the present utility model may also include a plurality of conductive contact pieces; wherein, a plurality of fixed slots, a plurality of contact portion receiving grooves, and a plurality of conductive contact pieces are respectively arranged in three rows, and the plurality of contact portions The receiving slots are arranged between the multiple fixing slots and the multiple conductive contact pieces. In addition, the utility model may further include an upper cover plate including a plurality of opening slots and a plurality of openings. The plurality of opening slots correspond to the plurality of conductive contact pieces of the circuit substrate, and the plurality of openings correspond to the contact portions of the plurality of elastic terminals. Accordingly, the utility model uses the upper cover to protect the circuit substrate. Except for the contact parts of the plurality of elastic terminals and the plurality of conductive contact pieces, the rest are covered and protected by the upper cover to increase the service life.

The beneficial effect of the utility model is that the reliability and service life of electrical contact can be greatly improved, and the structure is simple, the assembly is convenient, and the cost can be effectively reduced.

Description of drawings

In order to further disclose the specific technical content of the present utility model, the following detailed description is as follows in conjunction with the accompanying drawings, wherein:

Fig. 1 is a perspective view of a preferred embodiment of the present invention.

Fig. 2 is an exploded view of a preferred embodiment of the present invention.

Fig. 3 is a sectional view of a preferred embodiment of the present invention.

Fig. 4 is a sectional view of another preferred embodiment of the present invention.

Figure 5 is an exploded view of the known technology.

Detailed ways

Please refer to FIG. 1 . FIG. 1 is a perspective view of a preferred embodiment of the electronic device with a connection interface of the present invention. In the following embodiments, the interface specification of USB3.0 is used for illustration, but the present invention is not limited to the interface specification of USB3.0, and connection interfaces of other specifications are applicable. Furthermore, as shown in FIG. 1 , there is an electronic device 1 with a connection interface, and a socket (Socket) 6 . Wherein, the electronic device 1 includes five elastic terminals 2 , a circuit substrate 3 , four conductive contact pieces 33 , an upper cover 4 , and a lower bottom 5 . In addition, the socket 6 includes an accommodating groove 60 , and the upper part of the accommodating groove 60 includes four metal elastic pieces 62 and five contact terminals 61 . Wherein, when the electronic device 1 is inserted into the accommodating groove 60, the four metal elastic pieces 62 of the socket 6 will correspond to the four conductive contact pieces 33 of the electronic device 1, and the five elastic terminals 2 of the electronic device 1 The five contact terminals 61 of the socket 6 will be correspondingly electrically contacted.

Please refer to FIG. 2 and FIG. 3 at the same time. FIG. 2 is an exploded view of a preferred embodiment of the utility model, and FIG. 3 is a cross-sectional view of a preferred embodiment of the utility model. As shown in the figure, there are five elastic terminals 2 , and each elastic terminal 2 includes an insertion portion 21 , a lifting section 22 , and a contact portion 23 . The lifting section 22 is adjacent to the insertion portion 21 , and the lifting section 22 is interposed between the insertion portion 21 and the contact portion 23 . In this embodiment, the lifting section 22 of each elastic terminal 2 is an arc-shaped section 221 , and the contact portion 23 is an arc-shaped contact portion 230 . In addition, each side of the insertion portion 21 of each elastic terminal 2 has a support section 212, that is, the two support sections 212 are adjacent to the insertion portion 21 and relative to the lifting section 22, and the two support sections 212 are mainly used to lift the elastic terminal. support.

In addition, a circuit substrate 3 is shown in the figure, which includes five fixing slots 31, each fixing slot 31 is provided with a gold-plated layer 311, and the gold-plated layer 311 is arranged on the upper surface 30 of the circuit substrate 3 and includes There is an extension layer 312 . The insertion portions 21 of the five elastic terminals 2 are respectively inserted into the five fixing slots 31 of the circuit board 3 , and are respectively fixed and electrically connected to the gold plating layer 311 in the five fixing slots 31 by solder. In addition, in this embodiment, the insertion portion 21 of each elastic terminal 2 includes an extension plate 213 corresponding to the extension layer 312 of the gold-plated layer 311 and electrically connected by soldering. Accordingly, in addition to inserting the insertion portion 2 into the fixed slot 31 and fixing it by welding, the utility model also strengthens the electrical connection by welding the extension layer 312 and the extension plate 213, which can greatly increase the electrical contact area and improve reliability. In addition, due to the increase of the electrical contact area, the welding joint force can be increased, and the service life can be significantly improved.

Furthermore, in this embodiment, the lifting section 22 of each elastic terminal 2 extends radially outward from its corresponding fixing slot 31 and lifts away from the circuit substrate 3, so that the solder does not adhere to the lifting section 22 and the circuit. Between the substrates 3. That is to say, the structure of the arc section 221 of the lifting section 22 of the elastic terminal 2 rises steeply upwards away from the circuit substrate 3 outside the fixing slot 31, thereby preventing the solder from spreading and climbing up the elastic terminal 2 during the soldering process, and Further providing a partial stretch effect. In addition, the insertion portion 21 of each elastic terminal 2 in this embodiment is welded on the circuit board 3 and in the plurality of fixing slots 311 by surface mount technology (SMT, Surface mount technology).

Furthermore, the circuit substrate 3 of this embodiment further includes five contact portion receiving grooves 32 and four conductive contact pieces 33 . Wherein, five fixed slots 31, five contact portion accommodation slots 32, and four conductive contact pieces 33 are respectively arranged in three rows, and the contact portion accommodation grooves 32 are arranged between the fixed slots 31 and the conductive contact pieces. Between 33. However, the five contact portion receiving grooves 32 are respectively corresponding to the contact portions 23 of the five elastic terminals 2 , and the contact portions 23 of the five elastic terminals 2 can be selectively accommodated in the five contact portion receiving grooves 32 respectively. Accordingly, the utility model leaves a storage space for the deformation of the contact portion 23 of the elastic terminal 2, which can reduce the stress of the insertion portion 21 during electrical contact, avoid loosening, and greatly improve the reliability of electrical contact and ease of use. life.

Also, an upper cover plate 4 and a lower base plate 5 are shown in the figure. Wherein, the lower bottom plate 5 is disposed below the circuit substrate 3 , and the upper cover 4 is disposed above the circuit substrate 3 . Accordingly, the upper cover plate 4 and the lower base plate 5 are laminated to cover the circuit substrate 3 to achieve the effect of protection. However, the upper cover 4 includes four opening slots 41 and five openings 42, and the opening slots 41 correspond to the conductive contact pieces 33 of the circuit board 3, and the openings 42 correspond to the plurality of elastic terminals 2 respectively. contact part 23 . Thus, the contact portion 22 of the elastic terminal 2 and the conductive contact piece 23 are exposed for electrical contact.

Please refer to FIG. 4 . FIG. 4 is a cross-sectional view of another preferred embodiment of the present invention. The main difference between this embodiment and the above-mentioned embodiments is that, in this embodiment, the lifting section 22 of each elastic terminal 2 is a folded section 222 . Moreover, the extension plate 213 of the original insertion portion 21 and the extension layer 312 of the gold-plated layer 311 are correspondingly disposed on the rear side of the fixing slot 31 . Therefore, in addition to providing a better elastic effect, it is also possible to completely avoid the occurrence of solder diffusion and climbing during the soldering process.

The above-mentioned embodiments are only examples for convenience of description, and the scope of rights claimed by the utility model should be determined by the scope of the claims, rather than being limited to the above-mentioned embodiments.

Claims (10)

1. An electronic device with a connection interface, comprising: a plurality of elastic terminals, each elastic terminal includes an insertion portion, a lifting section, and a contact portion, the lifting section is adjacent to the insertion portion, and the lifting section is between the insertion portion and the contact portion; and A circuit substrate, including a plurality of fixed slots, each fixed slot is provided with a gold-plated layer; Wherein, the insertion parts of the plurality of elastic terminals are respectively inserted into the plurality of fixing slots of the circuit substrate, and are respectively fixed and electrically connected to the gold-plated layer in the plurality of fixing slots by solder; Wherein, the lifting section of each elastic terminal extends radially outward from the corresponding fixing slot and lifts away from the circuit substrate, and the solder does not adhere between the lifting section and the circuit substrate. 2. The electronic device with a connection interface according to claim 1, wherein, the circuit board further comprises a plurality of contact portion receiving grooves, and the contact portions of the plurality of elastic terminals correspond to the plurality of contact portions respectively. The contact part receiving grooves can be selectively accommodated in the plurality of contact part receiving grooves respectively. 3 . The electronic device with a connection interface as claimed in claim 1 , wherein the lifting section of each elastic terminal includes an arc section. 4 . 4 . The electronic device with a connection interface as claimed in claim 1 , wherein, the raised section of each elastic terminal includes a folded section. 5 . The electronic device with a connection interface as claimed in claim 1 , wherein the contact portion of each elastic terminal comprises an arc-shaped contact portion. 6 . The electronic device with a connection interface as claimed in claim 1 , wherein the gold-plated layer further comprises an extension layer extending on the upper surface of the circuit substrate. 7 . 7. The electronic device with connection interface as claimed in claim 6, wherein the insertion portion of each elastic terminal includes an extension plate extending on the extension layer of the gold-plated layer and electrically connected to each other . 8. The electronic device with a connection interface as claimed in claim 2, wherein the circuit substrate further includes a plurality of conductive contact pieces; wherein the plurality of fixed slots, the plurality of contact portion receiving grooves , and the plurality of conductive contact pieces are respectively arranged in three rows, and the plurality of contact portion accommodating grooves are arranged between the plurality of fixed slots and the plurality of conductive contact pieces. 9. The electronic device with connection interface as claimed in claim 8, characterized in that, it also includes an upper cover plate, the upper cover plate includes a plurality of opening slots and a plurality of openings, the plurality of opening slots Corresponding to the plurality of conductive contact pieces of the circuit substrate, the plurality of openings respectively correspond to the contact portions of the plurality of elastic terminals. 10. The electronic device with a connection interface according to claim 1, wherein each elastic terminal further comprises at least one supporting section, and the at least one supporting section is adjacent to the insertion portion and opposite to the lifting section .

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