Charging head with automatic awakening function

Abstract

The utility model discloses a charging head with an automatic wake-up function, which comprises a substrate, a charging end, a bonding pad, a soldering tin layer and a control circuit, the substrate is provided with a charging terminal, the bonding pad, the soldering tin layer and the control circuit, the charging terminal is electrically connected with the bonding pad and the control circuit respectively, the bonding pad is electrically connected with the control circuit, and the control circuit is electrically connected with the control circuit. The charging terminal is provided with a No.2 pin, a No.10 pin, a No.17 pin, a No.18 pin, a No.19 pin and a No.20 pin, the No.2 pin and the No.10 pin of the charging terminal are connected with the bonding pad, the No.17 pin and the No.18 pin of the charging terminal are electrically connected respectively, and the No.17 pin and the No.18 pin of the charging terminal are provided with soldering tin layers; a No.19 pin and a No.20 pin of the charging terminal are electrically connected respectively, and the No.19 pin and the No.20 pin of the charging terminal are provided with soldering tin layers.

Description

Technical Field

[0001] The utility model relates to the field of charging cables, and in particular to a charging head with an automatic wake-up function. Background Art

[0002] Smartphones are now widely used in our daily lives. With the development of smartphones, accessories that match smartphones have gradually appeared on the market. For example, Bluetooth headsets, power banks, etc. Among them, power banks are the most commonly used accessories. As people's use of smartphones has increased, they often use smartphones for entertainment activities such as games and videos; and use apps on smartphones for office work. When smartphones are used in the above-mentioned conditions, the battery level of the smartphone quickly decreases. Users cannot replenish the battery of the phone in time outdoors or in places without sockets, so they need to use a power bank to charge the phone. However, after connecting the smartphone and the power bank with a charging cable, the power bank needs to be turned on to charge the smartphone, which causes inconvenience to the user. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the utility model provides a charging head with an automatic wake-up function.

[0004] The purpose of this utility model is achieved through the following solutions:

[0005] A charging head with an automatic wake-up function includes: a substrate, a charging end, a soldering pad, a solder layer and a control circuit. The substrate is provided with a charging terminal, a soldering pad, a solder layer and a control circuit. The charging terminal is electrically connected to the soldering pad and the control circuit respectively, and the soldering pad is electrically connected to the control circuit. The charging terminal has pins 2, 10, 17, 18, 19 and 20. Pin 2 and pin 10 of the charging terminal are connected to the soldering pad, pin 17 and pin 18 of the charging terminal are electrically connected respectively, and a solder layer is provided on pins 17 and 18 of the charging terminal; pin 19 and pin 20 of the charging terminal are electrically connected respectively, and pin 19 and pin 20 of the charging terminal are provided with a solder layer.

[0006] In one embodiment, the pad includes a signal identification terminal, a positive power terminal and a negative power terminal, the signal identification terminal is electrically connected to pin 2 of the charging terminal, the positive power terminal is electrically connected to the control circuit, and the negative power terminal is connected to the ground.

[0007] In one embodiment, the control circuit includes a control module and a switch module, the control module is electrically connected to the switch module and the charging terminal respectively, and the switch module is electrically connected to the pad and the charging terminal respectively.

[0008] In one embodiment, the control module comprises a control chip, the control chip is electrically connected with the charging terminal, and the control chip is grounded.

[0009] In one embodiment, the control module further comprises a first current limiting component, the first current limiting component is electrically connected with the charging terminal, the control chip and the switch module respectively.

[0010] In one embodiment, the control module further comprises an anti-static component, the anti-static component is electrically connected with the control chip and the first current limiting component respectively, and the anti-static component is further grounded.

[0011] In one embodiment, the control module further comprises a filtering component, the filtering component is electrically connected with the control chip, and the filtering component is further grounded.

[0012] In one embodiment, the switch module comprises a on-off component, the on-off component is electrically connected with the charging terminal, the control chip and the pad respectively.

[0013] In one embodiment, the switch module further comprises a second current limiting component, the second current limiting component is electrically connected with the on-off component, the charging terminal, the pad and the first current limiting component respectively.

[0014] In one embodiment, the switch module further comprises an overvoltage protection component, the overvoltage protection component is electrically connected with the first current limiting component, the second current limiting component, the on-off component and the pad respectively.

[0015] Compared with the prior art, the utility model has at least the following advantages:

[0016] Through setting up the soldering tin layer, when carrying out the specific work, after the charging terminal is connected with the smart phone, the soldering tin layer contacts with the smart phone as the metal conductor, the smart phone is short-circuited through the soldering tin layer, thereby the 2nd pin and the 10th pin of the charging terminal are pulled down, direct default power supply identification is successful, and then the power supply can directly charge the smart phone, and the step of opening the power supply through the switch and then charging the smart phone is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application.

[0018] Figure 1 It is the structural principle diagram of the utility model;

[0019] Figure 2 It is the working principle diagram of the utility model;

[0020] Figure 3 It is the charging terminal structure diagram of the utility model;

[0021] Figure 4 It is a schematic diagram of the soldering pad structure of the utility model;

[0022] Figure 5 It is a circuit diagram of the control circuit of the utility model;

[0023] Wherein, the reference signs are, 1. base plate; 2. charging terminal;

[0024] 3. soldering pad; 31. signal identification end; 32. power supply positive end; 33. power supply negative end; 4. soldering layer;

[0025] 5. control circuit; 51. control module; 511. control chip; 512. first current limiting component; 513. anti-static component; 514. filter component; 52. switch module; 521. on-off component; 522. second current limiting component; 523. overvoltage protection component; 6. smart phone. DETAILED DESCRIPTION

[0026] The utility model will disclose multiple embodiments of the utility model with drawings, and many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit the utility model. That is, in some embodiments of the utility model, these practical details are unnecessary. In addition, for the sake of simplicity of the drawings, some conventional structures and components will be drawn in a simple schematic manner in the drawings.

[0027] It should be noted that all directional indications such as up, down, left, right, front, back, etc. in the embodiments of the utility model are used only to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture, such as shown in the drawings. If the specific posture changes, the directional indications will also change accordingly.

[0028] In addition, the description of "first", "second" and the like in the utility model is only for the purpose of description, and does not mean to specially indicate the order or sequence, nor to limit the utility model. It is only to distinguish the components or operations described by the same technical terms, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled persons in the art. When the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0029] In order to further understand the utility model content, characteristics and effects of the utility model, the following examples are cited, and the drawings are combined for detailed description as follows:

[0030] As Figures 1-2 shown, the utility model provides a charging head with automatic wake -up function, including substrate 1, charging terminal 2, solder pad 3, soldering tin layer 4 and control circuit 5, charging terminal 2, solder pad 3, soldering tin layer 4 and control circuit 5 are set on substrate 1, and charging terminal 2 is electrically connected with solder pad 3 and control circuit 5 respectively, and solder pad 3 is electrically connected with control circuit 5. Substrate 1 is used as a bearing, and charging terminal 2, solder pad 3, soldering tin layer 4 and control circuit 5 are all welded on substrate 1.

[0031] In the working state, charging terminal 2 is connected with smart phone, solder pad 3 is connected with power supply to transmit electric energy to control circuit 5 and charging terminal 2, soldering tin layer 4 is used as metal conductor to short charging terminal 2 and smart phone 6, and control circuit 5 can control the size of power supply voltage and current to control the charging speed of smart phone 6.

[0032] As Figure 3 shown, in the example, charging terminal 2 has 18 pins, wherein No. 2 pin and No. 10 pin are connected with solder pad 3, No. 17 pin and No. 18 pin are electrically connected with each other, No. 19 pin and No. 20 pin are electrically connected with each other, and soldering tin layer 4 is arranged on No. 19 pin and No. 20 pin respectively.

[0033] Among them, when carrying out specific work, solder pad 3 is connected with power supply first, when charging terminal 2 is connected with smart phone 6, the electric energy of power supply is transmitted through solder pad 3, solder pad 3 is electrically connected with control circuit 5, the electric energy is supplied to charging terminal 2 by control circuit, and finally the electric energy is supplied to smart phone 6 by charging terminal 2.

[0034] As Figure 2As shown, when the charging terminal 2 is connected with the smart phone 6, the solder layer 4 is connected with the smart phone 6 as a conductor, the No. 2 pin and the No. 10 pin of the charging terminal 2 are connected with the smart phone 6, and the smart phone 6 is connected with the resistance R. The solder layer 4 is provided on the No. 17 pin, the No. 18 pin, the No. 19 pin and the No. 20 pin of the charging terminal 2. Since the solder layer 4 is a connecting conductor, the resistance of the solder layer 4 is smaller than that of the resistance R. When the charging terminal 2 is connected with the smart phone 6, the solder layer 4 directly contacts the ground end of the resistance R to form a loop. In this way, the circuit of the No. 2 pin and the No. 10 pin of the charging terminal 2 connected with the smart phone 6 is short-circuited, so that the resistance R is also short-circuited. Since the No. 2 pin and the No. 10 pin of the charging terminal 2 are power signal identification terminals, when they are short-circuited, the voltage levels of the No. 2 pin and the No. 10 pin are directly lowered, and at the same time, they are shielded. Thus, the smart phone 6 connected with the charging terminal 2 is regarded as a power consumption device by default, and the power supply can directly charge the smart phone 6.

[0035] Specifically, as shown in the figure, Figure 4 The solder layer 4 is provided on the No. 17 pin, the No. 18 pin, the No. 19 pin and the No. 20 pin of the charging terminal 2. Since the solder layer 4 is a connecting conductor, the resistance of the solder layer 4 is smaller than that of the resistance R. When the charging terminal 2 is connected with the smart phone 6, the solder layer 4 directly contacts the ground end of the resistance R to form a loop. In this way, the circuit of the No. 2 pin and the No. 10 pin of the charging terminal 2 connected with the smart phone 6 is short-circuited, so that the resistance R is also short-circuited. Since the No. 2 pin and the No. 10 pin of the charging terminal 2 are power signal identification terminals, when they are short-circuited, the voltage levels of the No. 2 pin and the No. 10 pin are directly lowered, and at the same time, they are shielded. Thus, the smart phone 6 connected with the charging terminal 2 is regarded as a power consumption device by default, and the power supply can directly charge the smart phone 6.

[0036] Further, as shown in the figure, Figure 5 The control circuit 5 includes a control module 51 and a switch module 52, and the control module 51 is electrically connected with the switch module 52 and the charging terminal 2, and the switch module 52 is electrically connected with the solder layer 3 and the charging terminal 2. It should be noted that the switch module 52 is electrically connected with the solder layer 3 and the charging terminal 2. After the charging terminal 2 is connected with the smart phone 6, the switch module 52 is opened so that the power supply can supply power to the smart phone, and the control module 51 can control the current and voltage of the power supply, thereby realizing the fast charging of the smart phone 6.

[0037] Specifically, as shown in the figure, Figure 5As shown, control module 51 includes a control chip 511, which is electrically connected to charging terminal 2 and grounded. Control chip 511 has pins 1-6, with pin 1 of control chip 511 electrically connected to charging terminal 2, and pin 6 of charging terminal 2 grounded. During operation, control chip 511 controls the current and voltage of the power supply, thereby achieving rapid charging of smartphone 6. In this example, control chip 511 is PD007G.

[0038] Specifically, if Figure 5 As shown, the control module 51 also includes a first current-limiting component 512, which is electrically connected to the charging terminal 2, the control chip 511, and the switch module 52. The first current-limiting component includes resistors R4, R5, and R6, each having a terminal 1 and a terminal 2. Terminal 1 of resistor R4 is electrically connected to the switch module 52, terminal 2 of resistor R4 is electrically connected to terminal 1 of resistor R5, and terminal 2 of resistor R5 is electrically connected to terminal 5 of the control chip 511. Terminal 1 of resistor R6 is electrically connected to pin 5 of the charging terminal 2, and terminal 2 of resistor R6 is electrically connected to terminal 1 of the control chip 511. During operation, resistors R4, R5, and R6 act as current limiters to prevent current from damaging the control chip 511.

[0039] Specifically, if Figure 5 As shown, the control module 51 also includes an anti-static component 513, which is electrically connected to the control chip 511 and the first current limiting component 512, and the anti-static component 513 is also grounded. Among them, the anti-static component 513 includes a diode D3, which has a terminal 1 and a terminal 2. Terminal 1 of the diode D3 is electrically connected to the terminal 2 of the resistor R6 and the terminal 1 of the control chip 511, and the terminal 2 of the diode D3 is grounded. It should be noted that the diode D3 is an ESD diode with an electrostatic protection function to prevent static electricity from damaging the control chip 511.

[0040] Specifically, if Figure 5 As shown, the control module 51 also includes a filter component 514, which is electrically connected to the control chip 511 and is also grounded. Among them, the filter component 514 includes a capacitor C1 and a capacitor C2, and the capacitor C1 and the capacitor C2 have a terminal 1 and a terminal 2 respectively. The terminal 1 of the capacitor C1 and the capacitor C2 are grounded respectively, the terminal 2 of the capacitor C1 is electrically connected to the terminal 2 of the control chip 511, and the terminal 2 of the capacitor C2 is electrically connected to the terminal 3 of the control chip 511. It should be noted that the capacitors C1 and C2 act as filters to eliminate the interference of ripple noise on the control chip 511, making the operation of the control chip 511 more stable.

[0041] Specifically, as shown in Figure 5 The switch module 52 includes a switch-on component 521, which is electrically connected with the charging terminal 2, the control chip 511 and the pad 3. The switch-on component 521 includes a MOS tube, which has a gate G, a source S and a drain D. The gate G is electrically connected with the No. 1 terminal of the resistor R4, the source S is electrically connected with the power positive terminal 32 of the pad 3, and the drain D is electrically connected with the charging terminal 2. When the power is input from the power positive terminal 32 of the pad 3 to the MOS tube Q1, since the MOS tube Q1 is a PMOS, the voltage of the source S is greater than that of the drain D, so that the MOS tube Q1 is turned on, thereby delivering the electric energy to the charging terminal 2 to charge the smart phone.

[0042] Specifically, as shown in Figure 5 The switch module 52 further includes a second current-limiting component 522, which is electrically connected with the switch-on component 521, the charging terminal 2, the pad 3 and the first current-limiting component 512. The second current-limiting component 522 includes a resistor R1 and a resistor R2, which have No. 1 terminals and No. 2 terminals. The No. 1 terminal of the resistor R1 is electrically connected with the drain D of the MOS tube, the No. 2 terminal of the resistor R1 is electrically connected with the source S of the MOS tube, and the No. 1 terminal of the resistor R2 is electrically connected with the gate G of the MOS tube and the No. 2 terminal of the resistor R4. The functions of the resistors R1 and R2 are the same as those of the resistors R4, R5 and R6, which will not be repeated here.

[0043] Specifically, as shown in Figure 1 The switch module 52 further includes an overvoltage protection component 523, which is electrically connected with the first current-limiting component 512, the second current-limiting component 522, the switch-on component 521 and the pad 3. The overvoltage protection component includes a diode D1, which has a No. 1 terminal and a No. 2 terminal. The No. 1 terminal of the diode D1 is electrically connected with the gate G of the MOS tube, the No. 1 terminal of the resistor R2 and the No. 1 terminal of the resistor R4, respectively. The diode D1 is a TVS diode, which can provide fast overvoltage protection and prevent damage to the MOS tube.

[0044] As shown in Figure 2 , Figure 3 and ​ The charging head with the automatic wake-up function is provided with the soldering layer 4. When the charging terminal 2 is connected with the smart phone during the specific work, the soldering layer 4 serves as a metal conductor to contact the smart phone. After the No. 2 pin and the No. 10 pin of the charging terminal 2 are connected with the smart phone, since the No. 2 pin and the No. 10 pin are power identification terminals, the power can charge the smart phone after the voltage level is pulled down.

[0045] Thus, the soldering layer 4 is arranged on the No. 17, 18 pins and the No. 19, 20 pins of the charging terminal 2, the resistance R is connected in series on the smart phone pin connected with the No. 2 pin and the No. 10 pin of the charging terminal 2, the resistance R is short-circuited through the soldering layer 4, so that the No. 2 pin and the No. 10 pin of the charging terminal 2 are pulled low, the No. 2 pin and the No. 10 pin are shielded, the direct default power supply recognition is achieved, and then the power supply can directly charge the smart phone, and the step of opening the power supply to charge the smart phone 6 is omitted.

[0046] The above is only the embodiment of the present application, and is not used to limit the present application. The present application can have various changes and variations for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. A charging head with automatic wake-up function, characterized in that: include: A substrate (1), a charging terminal (2), a soldering pad (3), a solder layer (4) and a control circuit (5), wherein the substrate (1) is provided with a charging terminal (2), a soldering pad (3), a solder layer (4) and a control circuit (5), wherein the charging terminal (2) is electrically connected to the soldering pad (3) and the control circuit (5), respectively, and the soldering pad (3) is electrically connected to the control circuit (5), wherein the charging terminal (2) has a pin No. 2, a pin No. 10, a pin No. 17, a pin No. 18, a pin No. 19 and a pin No. 20, wherein the pin No. 2 and the pin No. 10 of the charging terminal (2) are connected to the soldering pad (3), wherein the pin No. 17 and the pin No. 18 of the charging terminal (2) are electrically connected, and the solder layer (4) is provided on the pin No. 17 and the pin No. 18 of the charging terminal (2); wherein the pin No. 19 and the pin No. 20 of the charging terminal (2) are electrically connected, and the solder layer (4) is provided on the pin No. 19 and the pin No. 20 of the charging terminal (2).

2. The charging head with automatic wake-up function according to claim 1, characterized in that: The pad (3) includes a signal identification terminal (31), a positive power terminal (32), and a negative power terminal (33); the signal identification terminal (31) is electrically connected to pin 2 of the charging terminal (2); the positive power terminal (32) is electrically connected to the control circuit (5); and the negative power terminal (33) is connected to the ground.

3. The charging head with automatic wake-up function according to claim 1, characterized in that: The control circuit (5) comprises a control module (51) and a switch module (52), wherein the control module (51) is electrically connected to the switch module (52) and the charging terminal (2), respectively, and the switch module (52) is electrically connected to the pad (3) and the charging terminal (2), respectively.

4. The charging head with automatic wake-up function according to claim 3, characterized in that: The control module (51) comprises a control chip (511), the control chip (511) is electrically connected to the charging terminal (2), and the control chip (511) is grounded.

5. The charging head with automatic wake-up function according to claim 4, characterized in that: The control module (51) further comprises a first current limiting component (512), wherein the first current limiting component (512) is electrically connected to the charging terminal (2), the control chip (511) and the switch module (52), respectively.

6. The charging head with automatic wake-up function according to claim 4, characterized in that: The control module (51) further comprises an anti-static component (513), wherein the anti-static component (513) is electrically connected to the control chip (511) and the first current limiting component (512), respectively, and the anti-static component (513) is also grounded.

7. The charging head with automatic wake-up function according to claim 4, characterized in that: The control module (51) further comprises a filter component (514), wherein the filter component (514) is electrically connected to the control chip (511), and the filter component (514) is also grounded.

8. The charging head with automatic wake-up function according to claim 3, characterized in that: The switch module (52) comprises a switching component (521), and the switching component (521) is electrically connected to the charging terminal (2), the control chip (511), and the pad (3), respectively.

9. The charging head with automatic wake-up function according to claim 8, characterized in that: The switch module (52) further comprises a second current limiting component (522), wherein the second current limiting component (522) is electrically connected to the on-off component (521), the charging terminal (2), the welding pad (3), and the first current limiting component (512), respectively.

10. A charging head with automatic wake-up function according to any one of claims 8-9, characterized in that: The switch module (52) further comprises an overvoltage protection component (523), wherein the overvoltage protection component (523) is electrically connected to the first current limiting component (512), the second current limiting component (522), the on-off component (521), and the pad (3), respectively.

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