Data line and charging device

Abstract

The embodiment of the utility model discloses a data line and a charging device. The data line comprises a wire, a first connecting terminal, a second connecting terminal and a first thermistor. The first connecting terminal is connected with the first end of the wire; the second connecting terminal is connected with the second end of the wire; the first thermistor is connected in series between the SUB pin and the Vbus pin of the first connecting terminal, or connected in series between the SUB pin and the GND pin of the first connecting terminal, or connected in series between the CC pin and the Vbus pin of the first connecting terminal, or connected in series between the CC pin and the GND pin of the first connecting terminal, and the first thermistor is used for being connected with charging equipment; and the charging equipment supplies power or stops supplying power to the data line according to the resistance value of the first thermistor. When the resistance value of the first thermistor is smaller than the first threshold value and the temperature of the first connecting terminal exceeds the preset temperature, the charging equipment stops outputting to prevent the first connecting terminal from being overheated, so that the charging equipment and the electronic equipment are protected, and the safety of the data line is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of data line, and particularly relates to a data line and a charging device. BACKGROUND

[0002] With the increasing variety of consumer electronics, the number of electronic products purchased and used by users is also increasing. Electronic products need to be charged frequently. During use, the charging line will be worn out and aged due to use, or there will be foreign matter at the port, which may cause abnormal heating, and even melting of the charging port, damage to the charging device, and safety accidents. CONTENT OF THE UTILITY MODEL

[0003] The embodiment of the present application provides a data line and a charging device. A first thermistor is connected in series between two pins of a first connecting terminal, and the resistance value of the first thermistor is detected through the two pins of the first connecting terminal, so that the temperature of the first connecting terminal is detected.

[0004] In a first aspect, the embodiment of the present application provides a data line. The data line comprises a wire, a first connecting terminal, a second connecting terminal and a first thermistor. The wire has a first end and a second end. The first connecting terminal is connected with the first end of the wire. The second connecting terminal is connected with the second end of the wire. The first thermistor is arranged in the first connecting terminal. The first thermistor is connected in series between a SUB pin and a Vbus pin of the first connecting terminal, or connected in series between a SUB pin and a GND pin of the first connecting terminal, or connected in series between a CC pin and a Vbus pin of the first connecting terminal, or connected in series between a CC pin and a GND pin of the first connecting terminal. The first thermistor is used to be connected with a charging device. The charging device stops or supplies power to the data line according to the resistance value of the first thermistor.

[0005] In a second aspect, the embodiment of the present application provides a charging device. The charging device comprises a data line and a charging device. The charging device comprises a power supply module and a control module connected with the power supply module. The control module can be electrically connected with the first connecting terminal or the second connecting terminal.

[0006] Beneficial effects: the first thermistor is used to connect with the charging device, and the charging device supplies power or stops supplying power to the data line according to the resistance value of the first thermistor. When the first connection terminal is connected with the charging device, the charging device is connected with each pin on the first connection terminal, that is, the charging device can be connected with two pins connected with the first thermistor, so as to obtain the resistance value of the first thermistor, and then calculate the temperature of the first thermistor according to the resistance value of the first thermistor. Since the first thermistor is arranged on the first connection terminal, the temperature of the first thermistor is close to the temperature of the first connection terminal, so the approximate temperature of the first connection terminal can be obtained. Thus, by detecting the terminal temperature of the charging line, the charging line is controlled to be disconnected when the temperature is too high, so as to avoid the occurrence of safety accidents. Moreover, the application aims to reuse the existing pins of the charging line without setting a separate interface or lead, and the resistance value of the first thermistor can be detected by using the chip in the charging device, so that a separate chip is not needed, and space and cost can be saved. BRIEF DESCRIPTION OF DRAWINGS

[0007] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0008] Figure 1 a structure schematic diagram of the data line in an embodiment of the present application;

[0009] Figure 2 a structure schematic diagram of the USB Type-C male head in the related art;

[0010] Figure 3 a connection schematic diagram of the first connection terminal and the second connection terminal in the related art;

[0011] Figure 4 a connection schematic diagram of the first connection terminal and the second connection terminal in the related art;

[0012] Figure 5 a connection schematic diagram of the first connection terminal and the second connection terminal in an embodiment of the present application;

[0013] Figure 6 a connection schematic diagram of the first connection terminal and the second connection terminal in another embodiment of the present application;

[0014] Figure 7 a connection schematic diagram of the first connection terminal and the second connection terminal in another embodiment of the present application;

[0015] Figure 8 A connection diagram of the first connection terminal and the second connection terminal in another embodiment of the present application;

[0016] Figure 9 A connection diagram of the first connection terminal and the second connection terminal in another embodiment of the present application;

[0017] Figure 10 A connection diagram of the first connection terminal and the second connection terminal in another embodiment of the present application;

[0018] Figure 11 A connection diagram of the first connection terminal and the second connection terminal in another embodiment of the present application;

[0019] Figure 12 A connection diagram of the first connection terminal and the second connection terminal in another embodiment of the present application.

[0020] Reference signs: 100, data line; 110, wire; 111, first end; 112, second end; 120, first connection terminal; 130, second connection terminal; NTC1, first thermistor; NTC2, second thermistor; NTC3, third thermistor; NTC4, fourth thermistor. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] It should be noted that all directional indications, such as up, down, left, right, front, back, etc., in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0023] In addition, the description such as "first", "second" and the like in the present application is only for the purpose of description, 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 defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0024] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium; can be internal connection of two elements, or interaction relationship between two elements, unless otherwise clearly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0025] In addition, the technical solutions of various embodiments of the present application can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection claimed in the present application.

[0026] As Figures 1-6 shown, the first aspect of the embodiment of the present application provides a data line 100, the data line 100 is used for charging electronic equipment or transmitting data, the electronic equipment can be mobile phone, tablet computer, notebook computer and the like.

[0027] The data line 100 includes a wire 110, a first connection terminal 120, a second connection terminal 130 and a first thermistor NTC1.

[0028] The wire 110 has a first end 111 and a second end 112, the first connection terminal 120 is connected with the first end 111 of the wire 110, and the second connection terminal 130 is connected with the second end 112 of the wire 110. The wire 110 plays a role of transmitting data or transmitting power, the wire 110 has a plurality of wire cores, one end of the plurality of wire cores is connected with different pins of the first connection terminal 120 respectively, and the other end of the plurality of wire cores is connected with different pins of the second connection terminal 130 respectively, so that the first connection terminal 120 and the second connection terminal 130 are electrically connected.

[0029] The first connection terminal 120 is used for connecting with one of the electronic equipment or the charging equipment, and the second connection terminal 130 is used for connecting with the other of the electronic equipment or the charging equipment. The charging equipment can be a charging head, a mobile power supply and the like. Exemplarily, the first connection terminal 120 is connected with the charging head, and the second connection terminal 130 is connected with the mobile phone, or the second connection terminal 130 is connected with the charging head, and the first connection terminal 120 is connected with the mobile phone.

[0030] As Figure 2As shown, the first connection terminal 120 can exemplarily be a USB Type-C male head, and the second connection terminal 130 can exemplarily be a USB Type-C male head. It should be noted that a standard Type-C male head has 24 contacts, and thus a full-function Type-C data line has 24 cores. However, some users often only have charging needs, and thus do not use all pins of the Type-C male head, but only use part of the pins of the Type-C male head. Therefore, the manufacturer can specifically reduce the number of cores of the wire 110 to only retain the cores of the pins required for connection.

[0031] Common data lines 100 are divided into 3A, 5A, and special specifications according to different current-carrying capacities. Figure 3 As shown, the 3A specification data line 100 at least needs to use the Vbus pin, the DM pin, the DP pin, the CC pin, and the Vbus pin. The Type-C male head has pins on both sides, and each side has two Vbus pins. The two Vbus pins on the same side are divided into a Vbus+ pin and a Vbus- pin. The Vbus+ pin and the Vbus- pin are mainly used to transmit power and have certain requirements for impedance and wire diameter. The DM pin / DP pin is a signal line, and the DM pin and the DP pin respectively represent a data differential transmission line and a data differential reception line, which are used to transmit data and respectively perform voltage pull-up or pull-down operations on the two signal lines. Figure 3 and Figure 4 As shown, the CC pin is used for data transmission and information delivery. According to the USB standard and the requirement of signal delivery, the 3A specification data line 100 at least needs one CC signal line, and the 5A data line 100 needs two CC signal lines (i.e., CC1 and CC2). The special specification Type-C male head is generally a full-function line, and thus contains two cores corresponding to the A8 pin (i.e., the SUB1 pin) and the B8 pin (i.e., the SUB2 pin). The A8 pin and the B8 pin are used for audio / video signal processing.

[0032] Figure 5 The left side of the figure represents the pins of the first connection terminal 120, Figure 5 The left side of the figure represents the pins of the first connection terminal 120, Figure 5 The right side of the figure represents the pins of the second connection terminal 130. The subsequent figures are the same, and thus will not be described again.

[0033] The first thermistor NTC1 is arranged on the first connecting terminal 120. The first thermistor NTC1 can be a positive temperature coefficient thermistor (PTC thermistor) and a negative temperature coefficient thermistor (NTC thermistor). The temperature of the first thermistor NTC1 can be calculated by detecting the resistance value of the first thermistor NTC1. Hereinafter, the first thermistor NTC1 is taken as an example of the positive temperature coefficient thermistor.

[0034] The first thermistor NTC1 has a small volume, so it can be easily integrated in the first connecting terminal 120 and will not increase or will not significantly increase the volume of the first connecting terminal 120.

[0035] The first thermistor NTC1 is connected in series between the SUB pin and the Vbus pin of the first connecting terminal 120. The SUB pin includes a SUB1 pin and a SUB2 pin. The Vbus pin includes a Vbus- pin and a Vbus+ pin.

[0036] That is, the first thermistor NTC1 can be connected in series between the SUB1 pin (i.e., the A8 pin) and the Vbus pin of the first connecting terminal 120. For example, the first thermistor NTC1 is connected in series between the A8 pin and the Vbus- pin of the first connecting terminal 120, or is connected in series between the A8 pin and the Vbus+ pin of the first connecting terminal 120.

[0037] Alternatively, the first thermistor NTC1 can also be connected in series between the SUB2 pin (i.e., the B8 pin) and the Vbus pin of the first connecting terminal 120. For example, the first thermistor NTC1 is connected in series between the B8 pin and the Vbus- pin of the first connecting terminal 120, or is connected in series between the B8 pin and the Vbus+ pin of the first connecting terminal 120. The A8 pin and the B8 pin of the first connecting terminal 120 are respectively located on two surfaces of the first connecting terminal 120.

[0038] The first thermistor NTC1 is used to connect with the charging device, and the charging device stops supplying power to the data line 100 according to the resistance value of the first thermistor NTC1. The resistance value of the first thermistor NTC1 is detected by using a chip in the charging device, and a chip does not need to be separately arranged in the data line 100, so that the space and cost can be saved. When the first connection terminal 120 is connected with the charging device, the charging device is connected with each pin on the first connection terminal 120, that is, the charging device can be connected with two pins connected with the first thermistor NTC1, so as to obtain the resistance value of the first thermistor NTC1, and then the temperature of the first thermistor NTC1 is calculated according to the resistance value of the first thermistor NTC1. Since the first thermistor NTC1 is arranged on the first connection terminal 120, the temperature of the first thermistor NTC1 is close to the temperature of the first connection terminal 120, so that the approximate temperature of the first connection terminal 120 can be obtained. When the resistance value of the first thermistor NTC1 is less than the first threshold value, the temperature of the first connection terminal 120 exceeds the preset temperature, and then the charging device stops outputting, so as to prevent the first connection terminal 120 from overheating, thereby protecting the charging device and the electronic device, and improving the safety of the data line 100.

[0039] The SUB pin is an auxiliary channel itself and is in an idle state in a non-audio mode. The SUB pin does not affect the charging function of the data line after the first thermistor NTC1 is connected to the SUB pin. By multiplexing the existing pin, a separate interface or lead does not need to be arranged, and the space and cost can be saved.

[0040] The Vbus pin is used to carry a large current, and the heat of the data line 100 during charging is concentrated on the Vbus pin. The first thermistor NTC1 is connected in parallel between the SUB pin and the Vbus pin, and the first thermistor NTC1 can directly perceive the real-time temperature of the data line 100, so that the detection delay caused by the physical distance can be reduced as much as possible.

[0041] It should be noted that when the first thermistor NTC1 is connected to the A8 pin of the first connection terminal 120, as shown in Figure 5 , the A8 pin of the second connection terminal 130 can not be connected with the A8 pin of the first connection terminal 120, so that the wire core can be reduced, and the cost of the lead wire 110 can be reduced.

[0042] Alternatively, as shown in Figure 6As shown, pin A8 of the second connection terminal 130 can be connected to pin A8 of the first connection terminal 120 via wire 110, thereby allowing either the first connection terminal 120 or the second connection terminal 130 to be connected to a charging device. When the first connection terminal 120 is connected to the charging device, the second connection terminal 130 is connected to the electronic device, and the charging device monitors the temperature of the first connection terminal 120, i.e., monitors the temperature at the charging device end; when the first connection terminal 120 is connected to the electronic device, the second connection terminal 130 is connected to the charging device, and the charging device monitors the temperature of the first connection terminal 120, i.e., monitors the temperature at the electronic device end.

[0043] Similarly, when the first thermistor NTC1 is connected to pin B8 of the first connection terminal 120, as... Figure 5 As shown, pin B8 of the second connection terminal 130 can be disconnected from pin B8 of the first connection terminal 120, thereby reducing the wire core and saving the cost of wire 110. Pin B8 of the second connection terminal 130 can be connected to pin B8 of the first connection terminal 120 through wire 110, thereby enabling the charging device to simultaneously detect the temperature of the first connection terminal 120 and the second connection terminal 130.

[0044] In some embodiments, the first connection terminal 120 has four Vbus pins, and the first thermistor NTC1 is connected in series between the SUB1 pin of the first connection terminal 120 and the Vbus pin adjacent to the SUB1 pin. Alternatively, the first thermistor NTC1 is connected in series between the SUB2 pin of the first connection terminal 120 and the Vbus pin adjacent to the SUB2 pin. The first thermistor NTC1 does not need to cross other pins during installation, thereby reducing the size occupied by the first thermistor NTC1 and simplifying installation.

[0045] like Figure 7 and Figure 8 As shown, in some embodiments, the data line 100 further includes a second thermistor NTC2, which is disposed on the second connection terminal 130. The second thermistor NTC2 is connected in series between the SUB1 pin (i.e., the A8 pin) and the Vbus pin of the second connection terminal 130. For example, the second thermistor NTC2 is connected in series between the A8 pin and the Vbus- pin of the second connection terminal 130, or in series between the A8 pin and the Vbus+ pin of the second connection terminal 130.

[0046] Of course, the second thermistor NTC2 can also be connected in series between the SUB2 pin (i.e., the B8 pin) and the Vbus pin of the second connection terminal 130. For example, the second thermistor NTC2 is connected in series between the B8 pin and the Vbus- pin of the second connection terminal 130, or between the B8 pin and the Vbus+ pin of the second connection terminal 130. The A8 pin and the B8 pin of the second connection terminal 130 are located on two sides of the second connection terminal 130, respectively.

[0047] The second thermistor NTC2 is used to connect with the charging device. The charging device stops supplying power to the data line 100 according to the resistance value of at least one of the first thermistor NTC1 and the second thermistor NTC2. For example, when the resistance value of the first thermistor NTC1 is less than a first threshold value, the charging device stops supplying power. When the resistance value of the second thermistor NTC2 is less than a second threshold value, the charging device stops supplying power. The first threshold value and the second threshold value can be the same or different.

[0048] As shown in FIG. 1, optionally, when the first thermistor NTC1 is connected to the A8 pin of the first connection terminal 120 and the second thermistor NTC2 is connected to the A8 pin of the second connection terminal 130, the A8 pin of the first connection terminal 120 and the A8 pin of the second connection terminal 130 can be disconnected, thereby reducing the number of cores and reducing the cost of the wire 110. When the charging device is connected to the first connection terminal 120 or the second connection terminal 130, the temperature at the end of the charging device can be monitored. Figure 7 As shown in FIG. 1, optionally, when the first thermistor NTC1 is connected to the A8 pin of the first connection terminal 120 and the second thermistor NTC2 is connected to the A8 pin of the second connection terminal 130, the A8 pin of the first connection terminal 120 and the A8 pin of the second connection terminal 130 can be connected by the wire 110. At this time, the first thermistor NTC1 and the second thermistor NTC2 are connected in parallel. When either of the first connection terminal 120 and the second connection terminal 130 is overheated, the resistance of the first thermistor NTC1 and the second thermistor NTC2 connected in parallel will decrease, thereby enabling the temperature of the first connection terminal 120 and the second connection terminal 130 to be monitored.

[0049] Figure 8 Similarly, when the first thermistor NTC1 is connected to the B8 pin of the first connection terminal 120 and the second thermistor NTC2 is connected to the B8 pin of the second connection terminal 130, the B8 pin of the first connection terminal 120 and the B8 pin of the second connection terminal 130 can be disconnected, thereby reducing the number of cores and reducing the cost of the wire 110. When the charging device is connected to the first connection terminal 120 or the second connection terminal 130, the temperature at the end of the charging device can be monitored. Figure 8

[0050] Similarly, when the first thermistor NTC1 is connected to the B8 pin of the first connection terminal 120 and the second thermistor NTC2 is connected to the B8 pin of the second connection terminal 130, the B8 pin of the first connection terminal 120 and the B8 pin of the second connection terminal 130 can be disconnected, thereby reducing the number of cores and reducing the cost of the wire 110. When the charging device is connected to the first connection terminal 120 or the second connection terminal 130, the temperature at the end of the charging device can be monitored.

[0051] When the first thermistor NTC1 is connected to the B8 pin of the first connecting terminal 120 and the second thermistor NTC2 is connected to the B8 pin of the second connecting terminal 130, the B8 pin of the first connecting terminal 120 and the B8 pin of the second connecting terminal 130 can be connected by the wire 110, at this time, the first thermistor NTC1 and the second thermistor NTC2 are connected in parallel, when any one of the first connecting terminal 120 and the second connecting terminal 130 is overheated, the resistance of the first thermistor NTC1 and the second thermistor NTC2 connected in parallel will be reduced, so that the temperature of the first connecting terminal 120 and the second connecting terminal 130 can be monitored.

[0052] When the first thermistor NTC1 is connected to the A8 pin of the first connecting terminal 120 and the second thermistor NTC2 is connected to the B8 pin of the second connecting terminal 130, the A8 pin of the first connecting terminal 120 and the A8 pin of the second connecting terminal 130 can be disconnected, and the B8 pin of the first connecting terminal 120 and the B8 pin of the second connecting terminal 130 can be disconnected, so that the wire core can be reduced and the cost of the wire 110 can be reduced. When the charging device is connected to the first connecting terminal 120 or the second connecting terminal 130, the temperature at the end of the charging device can be monitored.

[0053] When the first thermistor NTC1 is connected to the A8 pin of the first connecting terminal 120 and the second thermistor NTC2 is connected to the B8 pin of the second connecting terminal 130, the A8 pin of the first connecting terminal 120 and the A8 pin of the second connecting terminal 130 can be connected by the wire 110, and the B8 pin of the first connecting terminal 120 and the B8 pin of the second connecting terminal 130 can be connected by the wire 110, so that the charging device can be connected to the first thermistor NTC1 and the second thermistor NTC2 at the same time, thereby, no matter whether the first connecting terminal 120 or the second connecting terminal 130 is connected to the charging device, the charging device can monitor the temperature of the first connecting terminal 120 and the second connecting terminal 130 respectively, and the heating conditions of the first connecting terminal 120 and the second connecting terminal 130 can be distinguished.

[0054] As Figure 9 and Figure 10As shown, in some embodiments, the first thermistor NTC1 is connected in series between the SUB1 pin and the Vbus pin of the first connection terminal 120. The data line 100 further comprises a third thermistor NTC3, which is connected in series between the SUB2 pin and the Vbus pin of the first connection terminal 120, and is arranged on the first connection terminal 120 to monitor the temperature of the first connection terminal 120 together with the first thermistor NTC1. The third thermistor NTC3 is arranged apart from the first thermistor NTC1, for example, the third thermistor NTC3 and the first thermistor NTC1 are arranged on two opposite sides of the first connection terminal 120 respectively.

[0055] The third thermistor NTC3 is used to connect with a charging device, and the charging device stops supplying power to the data line 100 according to the resistance values of the first thermistor NTC1 and the third thermistor NTC3. For example, when the resistance value of the first thermistor NTC1 is less than a first threshold value, or when the resistance value of the third thermistor NTC3 is less than a third threshold value, the charging device stops supplying power, and the first threshold value and the third threshold value can be the same or different.

[0056] The first thermistor NTC1 and the third thermistor NTC3 can be backups of each other. When the first thermistor NTC1 is damaged, the temperature of the first connection terminal 120 can still be calculated by only the third thermistor NTC3, so as to improve the service life of the data line 100.

[0057] Optionally, the SUB1 pin of the first connection terminal 120 and the SUB1 pin of the second connection terminal 130 are connected by the wire 110, and the SUB2 pin of the first connection terminal 120 and the SUB2 pin of the second connection terminal 130 are connected by the wire 110, so that the charging device can detect the temperature of the first connection terminal 120 no matter the first connection terminal 120 or the second connection terminal 130 is connected.

[0058] As shown in FIG. 1, the data line 100 comprises a first connection terminal 120 and a second connection terminal 130. The first connection terminal 120 and the second connection terminal 130 are connected by a wire 110. The first connection terminal 120 comprises a SUB1 pin, a SUB2 pin, and a Vbus pin. The second connection terminal 130 comprises a SUB1 pin, a SUB2 pin, and a Vbus pin. The SUB1 pin of the first connection terminal 120 and the SUB1 pin of the second connection terminal 130 are connected by the wire 110. The SUB2 pin of the first connection terminal 120 and the SUB2 pin of the second connection terminal 130 are connected by the wire 110. Figure 11 As shown in FIG. 1, the data line 100 comprises a first connection terminal 120 and a second connection terminal 130. The first connection terminal 120 and the second connection terminal 130 are connected by a wire 110. The first connection terminal 120 comprises a SUB1 pin, a SUB2 pin, and a Vbus pin. The second connection terminal 130 comprises a SUB1 pin, a SUB2 pin, and a Vbus pin. The SUB1 pin of the first connection terminal 120 and the SUB1 pin of the second connection terminal 130 are connected by the wire 110. The SUB2 pin of the first connection terminal 120 and the SUB2 pin of the second connection terminal 130 are connected by the wire 110. Figure 12 As shown in FIG. 1, the data line 100 comprises a first connection terminal 120 and a second connection terminal 130. The first connection terminal 120 and the second connection terminal 130 are connected by a wire 110. The first connection terminal 120 comprises a SUB1 pin, a SUB2 pin, and a Vbus pin. The second connection terminal 130 comprises a SUB1 pin, a SUB2 pin, and a Vbus pin. The SUB1 pin of the first connection terminal 120 and the SUB1 pin of the second connection terminal 130 are connected by the wire 110. The SUB2 pin of the first connection terminal 120 and the SUB2 pin of the second connection terminal 130 are connected by the wire 110.

[0059] The third thermistor NTC3 is connected in series between the SUB2 pin and the Vbus pin of the first connection terminal 120, and the fourth thermistor NTC4 is connected in series between the SUB2 pin and the Vbus pin of the second connection terminal 130. The first thermistor NTC1 and the third thermistor NTC3 can be mutual backups, and the second thermistor NTC2 and the fourth thermistor NTC4 can be mutual backups, so as to improve the service life of the data line 100.

[0060] The third thermistor NTC3 and the fourth thermistor NTC4 are used to connect with the charging device. The charging device stops supplying power to the data line 100 according to the resistance values of the first thermistor NTC1, the second thermistor NTC2, the third thermistor NTC3 and the fourth thermistor NTC4. For example, when the resistance value of the first thermistor NTC1 is less than a first threshold value, or when the resistance value of the first thermistor NTC1 is less than a first threshold value, or when the resistance value of the third thermistor NTC3 is less than a third threshold value, or when the resistance value of the first thermistor NTC1 is less than a first threshold value, the charging device stops supplying power.

[0061] Optionally, the SUB1 pin of the first connection terminal 120 and the SUB1 pin of the second connection terminal 130 are connected by the wire 110, and the SUB2 pin of the first connection terminal 120 and the SUB2 pin of the second connection terminal 130 are connected by the wire 110. At this time, the first thermistor NTC1 and the third thermistor NTC3 are connected in parallel, and the second thermistor NTC2 and the fourth thermistor NTC4 are connected in parallel. When the first connection terminal 120 is overheated, the resistance values of the first thermistor NTC1 and the second thermistor NTC2 decrease, the resistance value of the first thermistor NTC1 and the third thermistor NTC3 connected in parallel decreases, and the resistance value of the second thermistor NTC2 and the fourth thermistor NTC4 connected in parallel decreases. The same is true when the second connection terminal 130 is overheated. The charging device can detect the temperature of the first connection terminal 120 and the second connection terminal 130.

[0062] In some embodiments, the first thermistor NTC1 can also be connected in series between the SUB pin and the GND pin of the first connection terminal 120. For example, the first thermistor NTC1 is connected in series between the SUB1 pin and the GND pin of the first connection terminal 120, or is connected in series between the SUB2 pin and the GND pin of the first connection terminal 120.

[0063] In some embodiments, the first thermistor NTC1 can also be connected in series between the CC pin and the Vbus pin of the first connection terminal 120.

[0064] That is, the first thermistor NTC1 can be connected in series between the CC1 pin (and the Vbus pin) of the first connection terminal 120, for example, the first thermistor NTC1 is connected in series between the CC1 pin and the Vbus- pin, or between the CC1 pin and the Vbus+ pin of the first connection terminal 120.

[0065] Alternatively, the first thermistor NTC1 can also be connected in series between the CC2 pin and the Vbus pin of the first connection terminal 120, for example, the first thermistor NTC1 is connected in series between the CC2 pin and the Vbus- pin, or between the CC2 pin and the Vbus+ pin of the first connection terminal 120.

[0066] In some embodiments, the first thermistor NTC1 can also be connected in series between the CC pin and the GND pin of the first connection terminal 120. For example, the first thermistor NTC1 is connected in series between the CC1 pin and the GND pin, or between the CC2 pin and the GND pin of the first connection terminal 120.

[0067] In the above embodiments, the existing pins can be multiplexed without affecting the charging function of the data line, without the need to set up a separate interface or lead, thereby saving space and cost.

[0068] Similarly, in some embodiments, the second thermistor NTC2 can also be connected in series between the SUB pin and the GND pin of the second connection terminal 130. For example, the second thermistor NTC2 is connected in series between the SUB1 pin and the GND pin, or between the SUB2 pin and the GND pin of the second connection terminal 130.

[0069] In some embodiments, the second thermistor NTC2 can also be connected in series between the CC pin and the Vbus pin of the second connection terminal 130.

[0070] That is, the second thermistor NTC2 can be connected in series between the CC1 pin (and the Vbus pin) of the second connection terminal 130, for example, the second thermistor NTC2 is connected in series between the CC1 pin and the Vbus- pin, or between the CC1 pin and the Vbus+ pin of the second connection terminal 130.

[0071] Alternatively, the second thermistor NTC2 can also be connected in series between the CC2 pin and the Vbus pin of the second connection terminal 130. For example, the second thermistor NTC2 is connected in series between the CC2 pin and the Vbus- pin of the second connection terminal 130, or connected in series between the CC2 pin and the Vbus+ pin of the second connection terminal 130.

[0072] In some embodiments, the second thermistor NTC2 can also be connected in series between the CC pin and the GND pin of the second connection terminal 130. For example, the second thermistor NTC2 is connected in series between the CC1 pin and the GND pin of the second connection terminal 130, or connected in series between the CC2 pin and the GND pin of the second connection terminal 130.

[0073] In the above embodiments, the charging function of the data line is not affected, and the existing pins are reused without the need to set up a separate interface or lead, thereby saving space and cost.

[0074] The second aspect of the embodiments of the present application provides a charging device, which includes a data line 100 and a charging apparatus. The charging apparatus includes a power supply module and a control module connected with the power supply module. The control module is electrically connected with the first connection terminal 120 or the second connection terminal 130, so as to measure the resistance value of at least one of the first thermistor NTC1, the second thermistor NTC2, the third thermistor NTC3, and the fourth thermistor NTC4. For example, the control module can measure the resistance between the SUB1 pin and the Vbus pin, or measure the resistance between the SUB2 pin and the Vbus pin through the SUB1 pin, the SUB2 pin, and the Vbus pin.

[0075] In some embodiments, the charging apparatus further includes a first switch connected in series between the control module and the SUB1 pin. When the charging apparatus detects a preset signal, the first switch is turned off for a preset time, and then turned on. The first switch can be a triode, a MOS tube, or the like. By controlling the first switch to be turned off, the SUB1 pin can be in a high resistance state, so as to correspond to the inspection instruction of the part of the electronic device during charging. For example, the preset signal can be the DP Alt Mode instruction of Samsung. When the charging apparatus detects the instruction, the first switch can be turned off to make the SUB1 pin in a high resistance state, so as to skip the DP Alt Mode instruction of Samsung. The preset time is related to the duration of the preset signal, and the preset time needs to cover the duration of the preset signal to skip the detection of the preset signal. For example, if the duration of the preset signal is 1s, the preset time can be 1.5s, 2s, or the like.

[0076] In some embodiments, the charging device further comprises a second switch connected in series between the control module and the SUB2 pin. The charging device turns off the second switch for a preset time when detecting the preset signal, and then turns on the second switch. The first switch can be a triode, MOS tube, etc. By controlling the second switch to be turned off, the SUB2 pin can be in a high resistance state, so as to correspond to the inspection instruction of the part of the electronic device when charging. Exemplarily, the preset signal can be a DP Alt Mode instruction of Samsung. When the charging device detects the instruction, the first switch can be turned off to make the SUB1 pin in a high resistance state, so as to skip the DP Alt Mode instruction of Samsung. The preset time is related to the duration of the preset signal, and the preset time needs to cover the duration of the preset signal to skip the detection of the preset signal. For example, the duration of the preset signal is 1s, and the preset time can be 1.5s, 2s, etc.

[0077] In some embodiments, the control module comprises a voltage dividing circuit and a control unit connected with the voltage dividing circuit, and the voltage dividing circuit is connected with the SUB1 pin, the SUB2 pin and the Vbus pin of the first connection terminal 120. The voltage dividing circuit is used to detect the voltage between the SUB1 pin of the first connection terminal 120 and the Vbus pin of the first connection terminal 120, and to detect the voltage between the SUB2 pin of the first connection terminal 120 and the Vbus pin of the first connection terminal 120. Exemplarily, the first thermistor NTC1 is connected in series between the SUB1 pin of the first connection terminal 120 and the Vbus pin of the first connection terminal 120. By measuring the voltage between the SUB1 pin of the first connection terminal 120 and the Vbus pin of the first connection terminal 120, the resistance between the SUB1 pin of the first connection terminal 120 and the Vbus pin of the first connection terminal 120 is measured, that is, the resistance value of the first thermistor NTC1 is measured. Exemplarily, the second thermistor NTC2 is connected in series between the SUB2 pin of the first connection terminal 120 and the Vbus pin of the first connection terminal 120. By measuring the voltage between the SUB2 pin of the first connection terminal 120 and the Vbus pin of the first connection terminal 120, the resistance between the SUB2 pin of the first connection terminal 120 and the Vbus pin of the first connection terminal 120 is measured, that is, the resistance value of the second thermistor NTC2 is measured.

[0078] The above description is only the preferred embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation made by using the content of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A data line, characterized by The data line comprises: a wire having a first end and a second end; a first connection terminal connected to the first end of the wire; a second connection terminal connected to the second end of the wire; a first thermistor arranged on the first connection terminal, the first thermistor being connected in series between a SUB pin and a Vbus pin of the first connection terminal, or connected in series between a SUB pin and a GND pin of the first connection terminal, or connected in series between a CC pin and a Vbus pin of the first connection terminal, or connected in series between a CC pin and a GND pin of the first connection terminal; wherein the first thermistor is used to connect with a charging device, and the charging device supplies power or stops supplying power to the data line according to the resistance value of the first thermistor.

2. The data line of claim 1, wherein, The first thermistor is connected in series between a SUB1 pin and a Vbus pin of the first connection terminal, and the SUB1 pin of the first connection terminal and a SUB1 pin of the second connection terminal are connected by the wire; or The first thermistor is connected in series between a SUB2 pin and a Vbus pin of the first connection terminal, and the SUB2 pin of the first connection terminal and a SUB2 pin of the second connection terminal are connected by the wire.

3. The data line of claim 1, wherein, The data line further comprises a second thermistor arranged on the second connection terminal, the second thermistor being connected in series between a SUB pin and a Vbus pin of the second connection terminal, or connected in series between a SUB pin and a GND pin of the second connection terminal, or connected in series between a CC pin and a Vbus pin of the second connection terminal, or connected in series between a CC pin and a GND pin of the second connection terminal; The second thermistor is used to connect with the charging device, and the charging device supplies power or stops supplying power to the data line according to the resistance value of at least one of the first thermistor and the second thermistor.

4. The data line of claim 3, wherein, The first thermistor is connected in series between a SUB1 pin and a Vbus pin of the first connection terminal, and the second thermistor is connected in series between a SUB2 pin and a Vbus pin of the second connection terminal, and the SUB1 pin of the first connection terminal and a SUB1 pin of the second connection terminal are connected by the wire, and the SUB2 pin of the second connection terminal and a SUB2 pin of the first connection terminal are connected by the wire.

5. The data line of claim 1, wherein, The first thermistor is connected in series between a SUB1 pin and a Vbus pin of the first connection terminal, and the data line further comprises a third thermistor arranged on the first connection terminal, and the third thermistor is arranged apart from the first thermistor, and the third thermistor is connected in series between a SUB2 pin and a Vbus pin of the first connection terminal; The third thermistor is used to connect with the charging device, and the charging device supplies power or stops supplying power to the data line according to the resistance value of at least one of the first thermistor and the third thermistor.

6. The data line of claim 3, wherein, The first thermistor is connected in series between a SUB1 pin and a Vbus pin of the first connection terminal, the second thermistor is connected in series between a SUB1 pin and a Vbus pin of the second connection terminal, and the data line further comprises: A third thermistor is arranged on the first connection terminal and is spaced apart from the first thermistor, and the third thermistor is connected in series between a SUB2 pin and a Vbus pin of the first connection terminal; A fourth thermistor is arranged on the second connection terminal and is spaced apart from the second thermistor, and the fourth thermistor is connected in series between a SUB2 pin and a Vbus pin of the second connection terminal; The third thermistor and the fourth thermistor are used to connect with the charging device, and the charging device stops or supplies power to the data line according to the resistance value of at least one of the first thermistor, the second thermistor, the third thermistor and the fourth thermistor.

7. The data line of claim 1, wherein, The first connection terminal has four Vbus pins, and the first thermistor is connected in series between a SUB1 pin and a Vbus pin adjacent to the SUB1 pin of the first connection terminal, or is connected in series between a SUB2 pin and a Vbus pin adjacent to the SUB2 pin of the first connection terminal.

8. A charging device, characterized by The data line comprises: The data line according to any one of claims 1-7; And The charging device comprises a power supply module and a control module connected with the power supply module, and the control module can be electrically connected with the first connection terminal or the second connection terminal.

9. The charging device of claim 8, wherein, The charging device further comprises a first switch connected in series between the control module and a SUB1 pin of the first connection terminal, and the charging device turns on the first switch after disconnecting the first switch for a preset time when a preset signal is detected; and / or The charging device further comprises a second switch connected in series between the control module and a SUB2 pin of the first connection terminal, and the charging device turns on the second switch after disconnecting the second switch for a preset time when a preset signal is detected.

10. The charging device of claim 8, wherein, The control module comprises a voltage dividing circuit and a control unit connected with the voltage dividing circuit, the voltage dividing circuit is connected with a SUB1 pin, a SUB2 pin and a Vbus pin of the first connection terminal, and the voltage dividing circuit is used to detect the voltage between the SUB1 pin of the first connection terminal and the Vbus pin of the first connection terminal, and is used to detect the voltage between the SUB2 pin of the first connection terminal and the Vbus pin of the first connection terminal.

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