CN106025616A - Power interface, mobile terminal and power adapter - Google Patents

Abstract

The invention discloses a power interface, a mobile terminal and a power adapter. The power interface includes: main part, data pin and power pin. The main part is suitable for being connected with the circuit board, and the data pin foot is a plurality of spaced apart and is connected with the main part. The power pin may be spaced apart and connected to the body part. The power supply pin and the data pin are arranged at intervals, at least one of the power supply pins comprises a widening section, and the cross sectional area of the widening section is larger than that of the data pin so as to increase the current load capacity of the power supply pins. According to the power interface, the widening section is arranged on the pin of the power supply, so that the current load capacity of the pin of the power supply can be increased, the transmission speed of current can be increased, the power interface has a quick charging function, and the charging efficiency of a battery is improved.

Description

Power interface, mobile terminal and power adapter

technical field

The present invention relates to the technical field of communication, and in particular, relates to a power interface, a mobile terminal and a power adapter.

Background technique

With the progress of the times, the Internet and mobile communication networks provide a large number of functional applications. Users can not only use mobile terminals for traditional applications, such as: use smart phones to answer or make calls; at the same time, users can not only use mobile terminals for web browsing, picture transmission, games, etc.

While using the mobile terminal to handle things, due to the increase in the frequency of using the mobile terminal, the power of the battery cell of the mobile terminal will be consumed in large quantities, which requires frequent charging; due to the accelerated pace of life, especially more and more emergencies, users hope Charge the batteries of mobile terminals with high current.

Contents of the invention

The present invention aims to solve one of the technical problems in the related art at least to a certain extent. Therefore, the present invention proposes a power interface, which has the advantages of reliable connection and rapid charging.

The present invention also proposes a mobile terminal, which includes the above-mentioned power interface.

The present invention also provides a power adapter, which includes the power interface as described above.

A power interface according to an embodiment of the present invention, comprising: a main body adapted to be connected to a circuit board; a plurality of spaced apart data pins connected to the main body; and a plurality of spaced apart power pins pin, the power supply pin is connected to the main body and the power supply pin is spaced apart from the data pin, at least one of the plurality of power supply pins includes a widened section, and the cross section of the widened section The area is larger than the cross-sectional area of the data pin to increase the current load of the power pin.

According to the power supply interface of the embodiment of the present invention, by setting the widening section on the power supply pin, the current load of the power supply pin can be increased, thereby increasing the transmission speed of the current, enabling the power supply interface to have a fast charging function, and improving the battery life. charging efficiency.

According to an embodiment of the present invention, the cross-sectional area of the widening section is S, and the S≥0.09805mm ² .

According to an embodiment of the present invention, said S=0.13125mm ² .

According to an embodiment of the present invention, the thickness of the power supply pin is D, and the D satisfies: 0.1mm≤D≤0.3mm.

According to an embodiment of the present invention, the D=0.25mm.

According to an embodiment of the present invention, a stepped surface is provided at a position of the widened section close to the front end of the power supply pin.

According to an embodiment of the present invention, there is one step surface and it is located on a first side wall of the widening section, and the first side wall is suitable for being electrically connected to a conductive member.

According to an embodiment of the present invention, one side of the first side wall located on the stepped surface is a contact surface suitable for contacting the conductive member, and the portion of the first side wall located on the other side of the stepped surface An insulating spacer layer is laid on one side.

According to an embodiment of the present invention, in the width direction of the power supply pin, the width of the contact surface is W, and the W satisfies: 0.24mm≤W≤0.32mm.

According to an embodiment of the present invention, the W=0.25mm.

According to an embodiment of the present invention, the two opposite side walls of the widening section are a first side wall and a second side wall, the first side wall is suitable for being electrically connected to a conductive member, and the stepped surface is two and are respectively a first step surface and a second step surface, the first step surface is located on the first side wall of the widened section, and the second stepped surface is located on the second side wall of the widened section, The two step surfaces are distributed at intervals in the width direction of the widening section.

According to an embodiment of the present invention, the first stepped surface and the second stepped surface are located in the same plane.

According to an embodiment of the present invention, the widened section is located in the middle of the power supply pin.

According to an embodiment of the present invention, some of the power supply pins are VBUS, and some of the power supply pins are GND.

According to the mobile terminal of the embodiment of the present invention, the mobile terminal has the above-mentioned power interface.

According to the mobile terminal of the embodiment of the present invention, by setting the widening section on the power supply pin, the current load of the power supply pin can be increased, so that the transmission speed of the current can be improved, the power interface has the function of fast charging, and the battery life is improved. charging efficiency.

According to the power adapter of the embodiment of the present invention, the power adapter has the above-mentioned power interface.

According to the power adapter of the embodiment of the present invention, by setting the widening section on the power pin, the current load of the power pin can be increased, so that the transmission speed of the current can be increased, the power interface has the function of fast charging, and the battery life is improved. charging efficiency.

Description of drawings

FIG. 1 is a schematic diagram of a partial structure of a power interface according to an embodiment of the present invention;

2 is an exploded view of a power interface according to an embodiment of the present invention;

Fig. 3 is a partially enlarged schematic diagram of place A in Fig. 2;

4 is a schematic cross-sectional view of a power interface according to an embodiment of the present invention;

Fig. 5 is a partially enlarged schematic diagram of place B in Fig. 4;

6 is a schematic structural diagram of a power pin of a power interface according to an embodiment of the present invention;

7 is a schematic structural diagram of a power pin of a power interface according to an embodiment of the present invention;

Fig. 8 is a schematic structural diagram of a power pin of a power interface according to an embodiment of the present invention

9 is a schematic structural diagram of a power pin of a power interface according to an embodiment of the present invention;

Fig. 10 is a schematic structural diagram of a power pin of a power interface according to an embodiment of the present invention.

Reference signs:

power interface 100,

main body 110,

Data pin 120,

Power supply pin 130, front end 131, widened section 132, first side wall 134, stepped surface 133, first stepped surface 133a, second side wall 135, second stepped surface 133b, first wall surface 136, second wall surface 137, chamfer 138, insulating spacer 139,

Rough part 140, middle patch 150.

detailed description

Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

In describing the present invention, it should be understood that the terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by "bottom", "inner", "outer", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying References to devices or elements must have a particular orientation, be constructed, and operate in a particular orientation and therefore should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; can be mechanically connected, can also be electrically connected or can communicate with each other; can be directly connected, can also be indirectly connected through an intermediary, can be the internal communication of two components or the interaction relationship between two components, Unless expressly defined otherwise. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

The power interface 100 according to the embodiment of the present invention will be described in detail below with reference to FIGS. 1-10 . It should be noted that the power interface 100 can be an interface for charging or data transmission, which can be set on a mobile phone, a tablet computer, a notebook computer or other mobile terminals with a rechargeable function, and the power interface 100 can be connected to a corresponding power adapter. Connect to realize the communication connection of electrical signal and data signal.

As shown in FIGS. 1-10 , the power interface 100 according to the embodiment of the present invention includes: a main body 110 , a data pin 120 and a power pin 130 .

Specifically, the main body 110 is adapted to be connected to a circuit board, and a plurality of data pins 120 are spaced apart and connected to the main body 110 . The power supply pins 130 may be multiple spaced apart and connected to the main body 110 . The power pins 130 and the data pins 120 are arranged at intervals. At least one of the plurality of power pins 130 includes an enlarged section 132 , the cross-sectional area of the widened section 132 is larger than that of the data pin 120 to increase the current carrying capacity of the power pin 130 . It should be noted that the power interface 100 can be set on the mobile terminal, a battery can be installed inside the mobile terminal (such as a mobile phone, a tablet computer, a notebook computer, etc.), and an external power supply can charge the battery through the power interface 100 .

According to the power supply interface 100 of the embodiment of the present invention, by setting the widening section 132 on the power supply pin 130, the current load of the power supply pin 130 can be increased, so that the transmission speed of the current can be improved, and the power supply interface 100 has the function of fast charging. function to improve the charging efficiency of the battery.

According to an embodiment of the present invention, the cross-sectional area of the widening section 132 is S, and S≧0.09805mm ² . It has been verified by experiments that when S≥0.09805mm ² , the current load of the power pin 130 is at least 10A, thus the charging efficiency can be improved by increasing the current load of the power pin 130 . After further test verification, when S=0.13125mm ² , the current load of the power supply pin 130 is 12A or above, thereby improving the charging efficiency.

According to an embodiment of the present invention, the thickness of the power supply pin 130 is D, and D satisfies: 0.1mm≤D≤0.3mm. It has been verified by experiments that when 0.1mm≤D≤0.3mm, the current load of the power supply pin 130 is at least 10A, thus the charging efficiency can be improved by increasing the current load of the power supply pin 130. After further test verification, when D=0.25mm, the current load of the power pin 130 can be greatly increased, and the current load of the power pin 130 is 12A or above, thereby improving the charging efficiency.

According to an embodiment of the present invention, as shown in FIG. 2 , the widened section 132 may be located in the middle of the power pin 130 . Thus, the layout of multiple power pins 130 and multiple data pins 120 can be optimized, and the space of the power interface 100 can be fully utilized, thereby improving the compactness and rationality of the structure of the power interface 100 .

According to an embodiment of the present invention, a step surface 133 is provided at a position close to the front end 131 of the power supply pin 130 of the widened section 132 . It should be noted that when the power interface 100 performs fast charging, the power pin 130 with the widened section 132 can be used to carry a relatively large charging current; when the power interface 100 performs normal charging, the stepped surface 133 on the widened section 132 It can prevent the power pin 130 from being in contact with the corresponding pin on the power adapter. Thus, the power interface 100 in this embodiment can be adapted to different power adapters. For example, when the power interface 100 is performing fast charging, the power interface 100 can be electrically connected to a corresponding power adapter with a fast charging function; when the power interface 100 is performing normal charging, the power interface 100 can be electrically connected to a corresponding common power adapter. Here, it should be noted that fast charging can refer to a charging state with a charging current greater than or equal to 2.5A or a charging state with a rated output power of not less than 15W; normal charging can refer to a charging state with a charging current of less than 2.5A or a charging state with a rated output power of less than 15W. charging.

It should be noted that the stepped surface 133 can be processed by stamping, and one side of the stepped surface 133 can be formed as a concave portion. In order to improve the use stability of the power interface 100 , the recessed portion may be filled with an insulating spacer layer 139 . Thus, when the power interface 100 is performing ordinary charging, the insulating spacer layer 139 can effectively separate the corresponding pins of the power supply pin 130 on the power adapter, so as to prevent the widening section 132 from causing charging interference to the pins on the power adapter, thereby It can improve the adaptability of the power interface 100 to common charging power adapters, and improve the stability of the power interface 100 in a normal charging state. It should be noted that the insulating spacer layer 139 can be formed as an encapsulation part wrapping part of the outer surface of the power supply pin 130 and the outer surface of the data pin 120 , wherein the encapsulation part can be made of insulating and thermally conductive material.

As shown in FIG. 7 and FIG. 8 , in order to improve the adhesion of the insulating spacer layer 139 on the concave portion, a rough portion 140 may be provided on the inner wall surface of the concave portion. Thus, the contact area between the insulating spacer layer 139 and the concave portion can be increased, so that the insulating spacer layer 139 can be stably attached in the concave portion. In some examples of the present invention, as shown in FIG. 7, the rough part 140 can be formed as a raised part, and the raised part in the recessed part can be embedded in the insulating spacer layer 139, so that the insulating spacer layer 139 can be firmly attached to the In some other embodiments of the present invention, as shown in FIG. The portion 140 may also be formed as a rough surface.

According to some embodiments of the present invention, the concave portion penetrates through at least one side wall of the widening section 132 . On the one hand, the power interface 100 can be applied to different types of power adapters; on the other hand, it is easy to process, thereby simplifying the process. Furthermore, the side wall of the widening section 132 penetrated by the concave part is the first wall surface 136, the wall surface of the concave part passing through the widening section is the second wall surface 137, and the position where the first wall surface 136 intersects with the second wall surface 137 is set There are 138 chamfers. It should be noted that the setting of the chamfer 138 can not only increase the contact area between the recessed portion and the insulating spacer layer 139 , improve the adhesion strength of the insulating spacer layer 139 on the recessed portion, but also make the outer surface of the power supply pin 130 transition smoothly. In addition, when the power supply pin 130 needs to be processed by a stamping process, the chamfer 138 can also be used to accommodate the remaining material generated during the stamping process, thereby improving the smoothness of the outer surface of the power supply pin 130 .

According to some embodiments of the present invention, as shown in FIG. 10 , there may be one stepped surface 133 , one stepped surface 133 is located on the first side wall 134 of the widened section 132 , and the first side wall 134 is suitable for electrical connection with the conductive member. It should be noted that when the power interface 100 is electrically connected to the power adapter, the corresponding pins in the power adapter are electrically connected to the first side wall 134 of the power pin 130 as a conductive member. It can be understood that when the power interface 100 is electrically connected to the power adapter, the corresponding pins in the power adapter are closely attached to the first side walls 134 of the power pins 130, so that the connection between the power interface 100 and the power adapter can be realized. Stable electrical connection.

In some examples of the present invention, the portion of the first side wall 134 located on one side of the stepped surface 133 is a contact surface suitable for contacting the conductive member, and the portion of the first side wall 134 located on the other side of the stepped surface 133 An insulating spacer layer 139 is laid. It should be noted that the stepped surface 133 can be processed by stamping. For example, in the example shown in FIG. The part on the left side of the stepped surface 133 is configured as a contact surface suitable for electrical connection with the conductive element, and the part on the first side wall 134 on the right side of the stepped surface 133 is laid with an insulating spacer layer.

According to an embodiment of the present invention, as shown in FIG. 6 and FIG. 10 , in the width direction of the power supply pin 130 (the left-right direction as shown in FIG. 6 and FIG. 10 ), the width of the contact surface is W , the W satisfies: 0.24mm≤W≤0.32mm. It has been verified by experiments that when 0.24mm≤W≤0.32mm, the current load of the power supply pin 130 is at least 10A, thus the charging efficiency can be improved by increasing the current load of the power supply pin 130. After further test verification, when W=0.25mm, the current load of the power pin 130 can be greatly increased, and the current load of the power pin 130 is 12A or above, thereby improving the charging efficiency.

According to other embodiments of the present invention, as shown in FIGS. electrical connections.

As shown in FIGS. 6-9 , there may be two stepped surfaces 133 and they are respectively a first stepped surface 133a and a second stepped surface 133b. The first stepped surface 133a is located on the first side wall 134, and the second stepped surface 133b is located on the On the second side wall 135 , two stepped surfaces 133 are distributed at intervals along the width direction of the widening section 132 . For example, as shown in FIGS. 4-9 , the width direction of the widening section 132 can be the left-right direction shown in FIGS. direction), the second side wall 135 faces the inner side of the power interface 100 (the inner side direction as shown in FIG. Above, the second stepped surface 133b is located on the second side wall 135 .

It should be noted that when processing the power supply pin 130 , the two stepped surfaces 133 can be processed by a stamping process. For example, the first sidewall 134 of the widened section 132 is stamped first to form the first stepped surface 133a, and then the second sidewall 135 of the widened section 132 is stamped to form the second stepped surface 133b. For another example, during the stamping process, by adjusting the shape of the static mold, two stepped surfaces 133 can be formed by one stamping. According to an embodiment of the present invention, the first stepped surface 133a and the second stepped surface 133b are located in the same plane. For example, as shown in FIG. 9 , the first stepped surface 133 a and the second stepped surface 133 b are located in the same vertical plane (a plane perpendicular to the left-right direction as shown in FIG. 9 ).

The power interface 100 according to the embodiment of the present invention will be described in detail below with reference to FIGS. 1-10 . It should be understood that the following description is only an illustration rather than a specific limitation to the present invention.

For convenience of description, the power interface 100 is Type-C as an example. The full name of the Type-C interface is the USB Type-C interface. It is an interface form. It is a new data and video developed by the USB standardization organization to solve the long-term lack of uniform physical interface specifications of the USB interface and the fact that power can only be transmitted in one direction. , Audio, power transmission interface specification.

The characteristic of Type-C is that standard devices can declare their willingness to occupy VBUS (that is, the positive end connection line of traditional USB) to the other party through the CC pin in the interface specification. VBUS outputs voltage and current, and the other party accepts the power supply of the VBUS bus, or still refuses to accept power supply, but does not affect the transmission function. In order to be able to use this bus definition more conveniently. Type-C interface chips (such as LDR6013) generally divide devices into four roles: DFP, Strong DRP, DRP, and UFP. The willingness of these four roles to occupy the VBUS bus decreases in turn.

Among them, DFP is equivalent to an adapter, which will continue to output voltage to VBUS, and Strong DRP is equivalent to a mobile power supply, and will only give up outputting VBUS when encountering an adapter. DRP is equivalent to a mobile phone. Under normal circumstances, they expect the other party to provide power to them, but when they encounter a device that is weaker than their own, they will reluctantly output power to the other party. UFP does not output power to the outside world. Generally, it is a device with a weak battery, or Battery-free devices, such as Bluetooth headsets. USB Type-C supports front and back insertion, and since there are a total of four sets of power and ground on the front and back sides, the power support can be greatly improved.

The power interface 100 in this embodiment can be a USB Type-C interface, which is suitable for power adapters with a fast charging function, and also suitable for common power adapters. Here, it should be noted that fast charging can refer to a charging state with a charging current greater than 2.5A or a charging state with a rated output power not less than 15W; normal charging can refer to a charging state with a charging current less than or equal to 2.5A or a charging state with a rated output power less than 15W. charging. That is to say, when using a power adapter with fast charging function to charge the power interface 100, the charging current is greater than or equal to 2.5A or the rated output power is not less than 15W; when using an ordinary power adapter to charge the power interface 100, the charging current is less than 2.5A A or the rated output power is less than 15W.

In order to standardize the power interface 100 and the power adapter compatible with the power interface 100 , the size of the power interface 100 meets the design requirements of a standard interface. For example, the number of pin pins is 24 for the power interface 100, the width required by its design (the width on the left-right direction of the power interface 100, the left-right direction as shown in Figure 1) is a, in order to make the power interface in this embodiment 100 satisfies the design standard, and the width of the power interface 100 in this embodiment (the width of the power interface 100 in the left-right direction, the left-right direction shown in FIG. 1 ) is also a. In order to enable the power supply pin 130 to carry a large charging current in a limited space, some of the 24 pins can be omitted, and at the same time, the cross-sectional area of the power supply pin 130 can be increased to carry a larger charging current. charging current, and the enlarged part of the power pin 130 can be arranged at the position of the omitted pin. On the one hand, the optimized layout of the components of the power interface 100 is realized; ability to carry current.

Specifically, as shown in FIGS. 1-3 , the power interface 100 includes: a main body 110 , six data pins 120 and eight power pins 130 . Among them, the six data pins 120 are A5, A6, A7, B5, B6, B7, the eight power pins 130 are A1, A4, A9, A12, B1, B4, B9, B12, and the eight power pins Four of the pins 130 are four VBUS, and the other four are GND. An intermediate patch 150 is sandwiched between two opposite GNDs. It should be noted that the power interface 100 can be provided on a mobile terminal, and a battery can be provided inside the mobile terminal (such as a mobile phone, a tablet computer, a notebook computer, etc.). The external power supply can be connected to the power interface 100 through the power adapter, and then the battery can be charged.

The main body 110 is adapted to be connected to a circuit board, and a plurality of data pins 120 are spaced apart and connected to the main body 110 . The power supply pins 130 may be multiple spaced apart and connected to the main body 110 . The power pins 130 and the data pins 120 are arranged at intervals. At least one of the plurality of power supply pins 130 includes an enlarged section 132, the widened section 132 is located in the middle of the power supply pin 130, and the cross-sectional area of the widened section 132 is larger than the cross-sectional area of the data pin 120 to increase the current of the power supply pin 130 payload. The widened section 132 can occupy the position of the omitted pin. On the one hand, it can increase the charging current that the power pin 130 can carry, which is easy to realize the fast charging function. On the other hand, it can improve the space utilization rate of the power interface 100 .

As shown in Figure 6 and Figure 10, the thickness of the power supply pin 130 is D, and the cross-sectional area of the widening section 132 is S. After experimental verification, when D=0.25mm, S=0.13125mm ² , the power supply pin 130 The current load capacity is at least 12A, which can improve the charging efficiency. Further, as shown in FIG. 10 , when W=0.25mm, the current load of the power supply pin 130 can be 14A or above, so that the charging efficiency can be improved.

As shown in Figure 6 and Figure 10, the power supply pin 130 has a contact surface suitable for electrical connection with the power adapter, in the width direction of the power supply pin 130 (the left and right direction as shown in Figure 6 and Figure 10 ), The width of the contact surface is W, and the W satisfies: 0.24mm≤W≤0.32mm. It has been verified by experiments that when 0.24mm≤W≤0.32mm, the current load of the power supply pin 130 is at least 10A, thus the charging efficiency can be improved by increasing the current load of the power supply pin 130. After further test verification, when W=0.25mm, the current load of the power pin 130 can be greatly increased, and the current load of the power pin 130 can be 10A, 12A, 14A or more, thereby improving the charging efficiency.

As shown in FIGS. 4-8 , part of the outer surface of the power supply pin 130 and the outer surface of the wrapping data pin 120 are wrapped with an encapsulating portion, wherein the encapsulating portion may be made of insulating and heat-conducting materials. A stepped surface 133 is provided on the widened section 132 near the front end 131 of the power supply pin 130 , and the stepped surface 133 can be filled with an encapsulation part. The inner wall surface of the stepped surface 133 may be provided with a rough surface, thereby increasing the contact area between the rubberized part and the stepped surface 133 , so that the rubberized part can be stably attached to the stepped surface 133 .

It should be noted that when the power interface 100 is performing fast charging, the power pin 130 with the widened section 132 can be used to carry a relatively large charging current; The part can avoid the contact between the power pin 130 and the corresponding pin on the power adapter. Thus, the power interface 100 in this embodiment can be adapted to different power adapters.

As shown in FIG. 6 , there may be two stepped surfaces 133 , and the two stepped surfaces 133 are distributed at intervals in the left-right direction (the left-right direction shown in FIGS. 4-8 ). As shown in FIGS. 4 and 5, the second side wall 135 is opposite to the first side wall 134, and the first side wall 134 is suitable for being electrically connected with the conductive member and facing the outside of the power interface 100 (the outside direction shown in FIG. 4 ), the second side wall 135 is opposite to the first side wall 134 and faces the inner side of the power interface 100 (inward direction as shown in FIG. Located on the second side wall 135 .

As shown in FIG. 6 , the stepped surface 133 penetrates at least one side wall of the widening section 132 . On the one hand, the power interface 100 can be applied to different types of power adapters; on the other hand, it is easy to process, thereby simplifying the process. Furthermore, the side wall of the widening section 132 penetrated by the stepped surface 133 is the first wall surface 136, the wall surface of the stepped surface 133 passing through the widening section is the second wall surface 137, and the position where the first wall surface 136 intersects with the second wall surface 137 There is a chamfer 138 there. It should be noted that the setting of the chamfer 138 can not only increase the contact area between the stepped surface 133 and the insulating spacer layer 139, improve the adhesion strength of the insulating spacer layer 139 on the stepped surface 133, but also make the outer surface of the power supply pin 130 smooth transition. In addition, when the power supply pin 130 needs to be processed by a stamping process, the chamfer 138 can also be used to accommodate the remaining material generated during the stamping process, thereby improving the smoothness of the outer surface of the power supply pin 130 .

Therefore, by setting the widening section 132 on the power pin 130, the current load of the power pin 130 can be increased, thereby increasing the transmission speed of the current, enabling the power interface 100 to have a fast charging function, and improving the charging of the battery. efficiency.

A mobile terminal according to an embodiment of the present invention includes the above-mentioned power interface 100 . The mobile terminal can realize the transmission of electrical signals and data signals through the power interface 100 . For example, the mobile terminal can be electrically connected to a power adapter through the power interface 100 to implement charging or data transmission functions.

According to the mobile terminal of the embodiment of the present invention, by setting the widening section 132 on the power pin 130, the current load of the power pin 130 can be increased, so that the transmission speed of the current can be increased, and the power interface 100 has the function of fast charging , to improve the charging efficiency of the battery.

According to the power adapter of the embodiment of the present invention, the power adapter has the above-mentioned power interface 100 . The mobile terminal can realize the transmission of electrical signals and data signals through the power interface 100 .

According to the power adapter of the embodiment of the present invention, by setting the widening section 132 on the power pin 130, the current load of the power pin 130 can be increased, so that the transmission speed of the current can be improved, and the power interface 100 has the function of fast charging , to improve the charging efficiency of the battery.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

Claims (16)

1. A power interface, characterized in that, comprising: a main body adapted to be connected to a circuit board; a plurality of spaced apart data pins connected to the main body; and a plurality of spaced apart power pins, the power pins are connected to the main body and the power pins are spaced apart from the data pins, at least one of the plurality of power pins includes a widening section, The cross-sectional area of the widening section is larger than that of the data pin to increase the current load of the power pin. 2. The power interface according to claim 1, wherein the cross-sectional area of the widening section is S, and the S≥0.09805mm ² . 3. The power interface according to claim 2, wherein said S=0.13125mm ² . 4. The power interface according to claim 1, wherein the thickness of the power pin is D, and the D satisfies: 0.1mm≤D≤0.3mm. 5. The power interface according to claim 4, wherein the D=0.25mm. 6 . The power interface according to claim 1 , wherein a stepped surface is provided at a position close to the front end of the power pin of the widened section. 6 . 7 . The power interface according to claim 6 , wherein there is one step surface and is located on a first side wall of the widened section, and the first side wall is suitable for being electrically connected to a conductive member. 8 . 8. The power interface according to claim 7, wherein the portion of the first side wall on one side of the stepped surface is a contact surface suitable for contacting the conductive member, the first An insulating spacer layer is laid on the part of the side wall located on the other side of the step surface. 9 . The power interface according to claim 8 , wherein, in the width direction of the power pin, the width of the contact surface is W, and the W satisfies: 0.24mm≤W≤0.32mm. 10. The power interface according to claim 9, wherein the W=0.25mm. 11. The power interface according to claim 6, wherein the two opposite side walls of the widening section are a first side wall and a second side wall, and the first side wall is suitable for electrically connecting with the conductive member. connect, There are two stepped surfaces and they are respectively a first stepped surface and a second stepped surface, the first stepped surface is located on the first side wall, and the second stepped surface is located on the second side wall, The two step surfaces are distributed at intervals in the width direction of the widening section. 12. The power interface according to claim 11, wherein the first stepped surface and the second stepped surface are located in the same plane. 13. The power interface according to claim 1, wherein the widened section is located in the middle of the power pin. 14. The power interface according to claim 1, wherein some of the power supply pins are VBUS, and some of the power supply pins are GND. 15. A mobile terminal, comprising the power interface according to any one of claims 1-14. 16. A power adapter, comprising the power interface according to any one of claims 1-14.