Charging adapter apparatus, charging device and vehicle

Abstract

A charging adapter apparatus (100), comprising a charging adapter apparatus body (110), and an input terminal (120) and an output terminal (130) disposed on the charging adapter apparatus body (110), wherein the input terminal (120) is used for connecting to a direct-current charger, and the output terminal (130) is used for connecting to a vehicle. The charging adapter apparatus body (110) comprises a charging controller (111) and a detection circuit (112) connected to the charging controller (111), wherein the detection circuit (112) comprises a detection point, and the charging controller (111) is connected to the detection point to detect the connection state between the direct-current charger and the vehicle by means of the detection point. In addition, the present application further relates to a charging device and a vehicle.

Description

Charging adapter, charging device and vehicle

[0001] Cross-reference to Related Applications

[0002] This application is based on and claims priority to Chinese Patent Application No. 2024211581233, filed on May 24, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present application belongs to the technical field of vehicles, and specifically, the present application relates to a charging adapter, a charging device and a vehicle. BACKGROUND

[0004] With the vigorous development of new energy automobile and new energy facility industry, subsidies gradually tend to charging operation facility enterprises, especially the governments and social resources in various places vigorously develop public charging. On the one hand, since the charging pile generally adopts an alternating current and direct current integrated charging port, and the electric vehicle generally adopts an alternating current and direct current split type charging interface; on the other hand, since the charging pile adopts power line carrier (PLC) communication, which is consistent with the controller area network (CAN) communication of the electric vehicle, therefore, the charging pile cannot directly charge the electric vehicle, which greatly limits the sales market of the electric vehicle.

[0005] In order to solve the problem that the electric vehicle can be charged on the direct current charging pile and ensure the compatibility of the electric vehicle charging, an adapter scheme can be adopted to realize the direct current charging of the electric vehicle by the direct current charging pile. Detection points are arranged between the charging pile and the adapter and between the vehicle and the adapter, and whether the charging pile and the vehicle are reliably connected is determined through the detection points. However, when one of the detection points is abnormal, the entire circuit is abnormal, so the connection reliability of the adapter is low, and the use experience is poor.

[0006] DISCLOSURE

[0007] An object of an embodiment of the present application is to provide a charging adapter, a charging device and a vehicle.

[0008] The embodiment of the present application provides a charging adapter, which comprises: a charging adapter body; and an input end and an output end arranged on the charging adapter body, the input end is used for connecting a direct current charger, and the output end is used for connecting a vehicle; wherein the charging adapter body comprises: a charging controller and a detection circuit connected with the charging controller; wherein the detection circuit comprises a detection point, the charging controller is connected to the detection point, and the connection state of the direct current charger and the vehicle is detected through the detection point.

[0009] In some embodiments, the detection circuit further comprises: a first resistor, a first end of the first resistor is connected with a voltage end; a second resistor, a second end of the second resistor is connected with the output end; and a control switch, a first end of the control switch is connected with a second end of the first resistor, and a second end of the control switch is connected with a first end of the second resistor; wherein the detection point is located between the first resistor and the control switch.

[0010] In some embodiments, the charging adapter further comprises: a switching circuit and an auxiliary power supply; the switching circuit is connected with the charging controller; and the auxiliary power supply is connected with the switching circuit.

[0011] In some embodiments, the charging adapter further comprises: a direct current contactor, the direct current contactor is connected with the switching circuit.

[0012] In some embodiments, the switching circuit comprises: a first switch and a second switch; a first end of the first switch and a first end of the second switch are connected with the auxiliary power supply; and a second end of the first switch and a second end of the second switch are connected with the direct current contactor.

[0013] In some embodiments, the charging adapter further comprises: a pulse width modulation circuit, the pulse width modulation circuit is connected with the direct current contactor.

[0014] In some embodiments, the pulse width modulation circuit comprises: a diode, a third switch, a third resistor and a fourth resistor; a positive electrode of the diode is connected with the direct current contactor; a negative electrode of the diode is connected with a first end of the third resistor and a first end of the third switch; a second end of the third switch is connected with a first end of the fourth resistor; and a second end of the third resistor and a second end of the fourth resistor are connected with a ground end.

[0015] In some embodiments, the charging adapter further comprises: an indicating lamp connected with the charging controller, and the on-off state of the indicating lamp indicates the connection state of the direct current charger and the vehicle.

[0016] In some embodiments, the indicator light comprises: a first indicator light and a second indicator light; the on-off state of the first indicator light indicates the connection relationship between the charging adapter and the DC charger; and the on-off state of the second indicator light indicates the connection relationship between the charging adapter and the vehicle.

[0017] The charging detection device provided by the embodiment of the present disclosure comprises: a detection circuit, a voltage detection device and a judging device; the detection circuit comprises a detection point; the voltage detection device is connected to the detection point of the detection circuit and is used for detecting the voltage value of the detection point; and the judging device is connected to the voltage detection device and is used for determining the connection state of the vehicle and the DC charger according to the voltage value.

[0018] In some embodiments, the detection circuit further comprises: a first resistor, a first end of the first resistor being connected to a voltage end; a second resistor, a second end of the second resistor being connected to an output end; and a control switch, a first end of the control switch being connected to a second end of the first resistor, and a second end of the control switch being connected to a first end of the second resistor; wherein the detection point is located between the first resistor and the control switch.

[0019] In some embodiments, the judging device is used for: when the voltage value is 12V, determining that the connection state is that the vehicle is not connected and the DC charger is not connected; when the voltage value is 4V, determining that the connection state is that the vehicle is not connected and the DC charger is connected; when the voltage value is 6V, determining that the connection state is that the vehicle is connected and the DC charger is not connected; and when the voltage value is 3V, determining that the connection state is that the vehicle is connected and the DC charger is connected.

[0020] In some embodiments, the resistance value of the first resistor is 3KΩ.

[0021] In some embodiments, the resistance value of the second resistor is 2KΩ.

[0022] The charging device provided by the embodiment of the present disclosure comprises the charging adapter provided by the above embodiments or the charging detection device provided by the above embodiments.

[0023] The vehicle provided by the embodiment of the present disclosure comprises the charging adapter provided by the above embodiments or the charging detection device provided by the above embodiments.

[0024] By designing the detection circuit of the electric vehicle and the charger and the charging adapter as the same loop, simplifying the voltage detection point in the detection circuit to one voltage detection point, not needing to set voltage detection points for the charger and the electric vehicle respectively, the loop is simple, thereby realizing the connection confirmation of the electric vehicle and the charger and the charging adapter, improving the connection reliability, reducing the cost, and better user experience. BRIEF DESCRIPTION OF DRAWINGS

[0025] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description thereof taken in conjunction with the accompanying drawings in which:

[0026] Fig. 1 shows an exemplary schematic diagram of a charging adapter according to an embodiment of the present application;

[0027] Fig. 2 shows an exemplary schematic diagram of a detection circuit for detecting the connection of a vehicle and a charger according to an embodiment of the present application;

[0028] Fig. 3 shows an exemplary schematic diagram of another charging adapter according to an embodiment of the present application. DETAILED DESCRIPTION

[0029] In order to make the objectives, technical solutions and advantages of the present application more apparent, the following will describe the example embodiments according to the present application in detail with reference to the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments of the present application, and it should be understood that the present application is not limited to the example embodiments described herein. Based on the embodiments of the present application described in the present application, all other embodiments obtained by those skilled in the art without creative labor should fall within the protection scope of the present application.

[0030] The following will describe a charging adapter 100 according to an embodiment of the present application with reference to Fig. 1. Fig. 1 shows an exemplary schematic diagram of the charging adapter 100 according to an embodiment of the present application. As shown in Fig. 1, the charging adapter 100 comprises: a charging adapter body 110; an input end 120 and an output end 130 arranged on the charging adapter body 110, the input end 120 being used for connecting a direct current charger, and the output end 130 being used for connecting a vehicle; wherein the charging adapter body 110 comprises: a charging controller 111 and a detection circuit 112 connected with the charging controller 111; wherein the detection circuit 112 comprises one detection point, and the charging controller 111 is connected to the detection point, and the connection state of the direct current charger and the vehicle is detected through the detection point.

[0031] According to the charging adapter 100, the electric vehicle and the charger are designed as the same loop with the detection circuit 112 of the charging adapter 100, the voltage detection point in the detection circuit 112 is simplified as one voltage detection point, the voltage detection points of the charger and the electric vehicle do not need to be arranged respectively, the loop is simple, and the connection of the electric vehicle and the charger with the charging adapter 100 is confirmed, the connection reliability is improved, the cost is reduced, and the user experience is better.

[0032] In some embodiments, the charging adapter 100 includes a charging adapter body 110, the charging adapter body 110 includes a charging controller 111 and a detection circuit 112 connected with the charging controller 111; wherein the detection circuit 112 includes: a first resistor R, a first end of the first resistor R is connected with a voltage end; a second resistor R1, a second end of the second resistor R1 is connected with an output end 130; a control switch S, a first end of the control switch S is connected with a second end of the first resistor R, and a second end of the control switch S is connected with a first end of the second resistor R1; wherein a detection point is included between the first resistor R and the control switch S, the charging controller 111 is connected to the detection point, and the connection state of the DC charger and the vehicle is detected through the detection point.

[0033] The voltage detection of the detection point between the first resistor R and the control switch S in the detection circuit 112 can be realized through the charging controller 111, and the connection of the DC charger and the vehicle with the charging adapter 100 is identified through the voltage detection at the point.

[0034] In some embodiments, the voltage value of the pull-up voltage U is 12V, the resistance value of the first resistor R is 3KΩ, the resistance value of the second resistor R1 is 2KΩ, the control switch S is used as the state indication of the physical lock rod of the electronic lock, and the voltage value and the resistance value can of course be other suitable values, which are not limited specifically. The pull-up voltage U, the first resistor R, the second resistor R1 and the control switch S can be replaced by other forms or combinations.

[0035] In some embodiments, the charging interfaces of the DC charger and the vehicle can be different types of interfaces, for example, the DC charger is a European standard DC charger, and the vehicle is a national standard vehicle such as a GB / T electric vehicle, and the charging interface of the national standard vehicle is a national standard charging interface.

[0036] The detection point condition of the detection circuit for detecting the connection between the vehicle and the DC charger will be described below in connection with FIG. 2. As shown in FIG. 2, the output port of the DC charger, the charging adapter 100, and the charging port of the vehicle are designed as a same loop, the input port of the charging adapter is connected to the output port of the DC charger (i.e., one end of the resistor R_C in the charger is connected to the input port of the charging adapter), the output port of the charging adapter is connected to the charging port of the vehicle (i.e., the second end of the second resistor R1 in the detection circuit is connected to one end of the resistor R_V in the charging port of the vehicle), wherein the PP terminal is one charging connection terminal in the output port (i.e., the charger socket) of the DC charger, and the CC1 terminal is one charging connection terminal in the charging port (i.e., the vehicle socket) of the vehicle. When the voltage at the detection point (i.e., the detection point 3 in the figure) is 12V, it can be determined that the vehicle is not connected to the charging adapter 100, and the DC charger is not connected to the charging adapter 100; when the voltage at the detection point is 4V, it can be determined that the vehicle is not connected to the charging adapter 100, and the DC charger is reliably connected to the charging adapter 100; when the voltage at the detection point is 6V, it can be determined that the vehicle is reliably connected to the charging adapter 100, and the DC charger is not connected to the charging adapter 100; when the voltage at the detection point is 3V, it can be determined that the vehicle is reliably connected to the charging adapter 100, and the DC charger is reliably connected to the charging adapter 100.

[0037] In some embodiments, the charging adapter 100 further comprises a switching circuit and an auxiliary power supply, the switching circuit is connected to the charging controller 111, and the auxiliary power supply is connected to the switching circuit. The switching circuit and the auxiliary power supply are not shown in FIG. 1, but are not intended to be limiting.

[0038] The closing of the switching circuit can be controlled by the charging controller 111 to provide the auxiliary power supply for the electric vehicle. The auxiliary power supply can be a 12V rechargeable power supply, or can be another suitable voltage value, which is not limited in particular.

[0039] In some embodiments, the charging adapter 100 further comprises a DC contactor, the DC contactor is connected to the switching circuit. The DC contactor is not shown in FIG. 1, but is not intended to be limiting. When the switching circuit is closed, the auxiliary power supply can energize the coil in the DC contactor, and at the same time, the normally open contact in the DC contactor is closed, so that the vehicle and the DC charger can detect the gun insertion signal.

[0040] In some embodiments, the switching circuit comprises a first switch and a second switch, the first end of the first switch and the first end of the second switch are connected to the auxiliary power supply, and the second end of the first switch and the second end of the second switch are connected to the DC contactor.

[0041] When the first switch and the second switch are closed under the action of the charging controller 111, the auxiliary power supply can provide an auxiliary power supply for the electric vehicle at this time, and can also make the coil of the DC contactor electrified and close the normally open contact of the DC contactor at the same time, so that the vehicle and the DC charger can detect the plug-in signal at this time.

[0042] When the charging adapter 100 is reliably connected with the DC charger, and the vehicle is not reliably connected with the charging adapter 100, the voltage value of the detection point in the detection circuit 112 at this time is 3V, the switch circuit is not closed, the coil of the DC contactor is not electrified, and the normally open contact of the DC contactor is not closed, so that the vehicle and the DC charger cannot detect the plug-in signal at this time, and the vehicle cannot be charged. When the charging adapter 100 is not reliably connected with the DC charger, and the vehicle is reliably connected with the charging adapter 100, the voltage value of the detection point in the detection circuit 112 at this time is not 6V, the switch circuit is not closed, the coil of the DC contactor is not electrified, and the normally open contact of the DC contactor is not closed, so that the vehicle and the DC charger cannot detect the plug-in signal at this time, and the vehicle cannot be charged. When the charging adapter 100 is not reliably connected with the DC charger, and the vehicle is not reliably connected with the charging adapter 100, the voltage value of the detection point in the detection circuit 112 at this time is 12V, the switch circuit is not closed, the coil of the DC contactor is not electrified, and the normally open contact of the DC contactor is not closed, so that the vehicle and the DC charger cannot detect the plug-in signal at this time, and the vehicle cannot be charged. When the charging adapter 100 is reliably connected with the DC charger, and the vehicle is reliably connected with the charging adapter 100, the voltage value of the detection point in the detection circuit 112 at this time is 3V, the switch circuit is closed through the charging controller 111, the closure of the switch circuit makes the auxiliary power supply provide an auxiliary power supply for the vehicle, makes the DC loop conductive, and further makes the coil of the DC contactor electrified, so that the normally open contact of the DC contactor is also closed at this time. After the normally open contact is closed, the vehicle and the DC charger can detect the plug-in signal. Therefore, by additionally increasing the DC contactor, the plug-in signal detection must be performed after the vehicle and the DC charger are reliably connected with the adapter, so that the subsequent connection problem can be confirmed.

[0043] In some embodiments, the charging adapter 100 further comprises a pulse width modulation circuit connected with the DC contactor. The pulse width modulation circuit is not shown in FIG. 1, but is not intended to be limiting. The pulse width modulation circuit is mainly used for identifying a pulse width modulation (PWM) wave.

[0044] In some embodiments, the pulse width modulation circuit comprises a diode D1, a third switch S2, a third resistor R2 and a fourth resistor R3, the positive pole of the diode D1 is connected to the DC contactor; the negative pole of the diode D1 is connected to the first end of the third resistor R2 and the first end of the third switch S2; the second end of the third switch S2 is connected to the first end of the fourth resistor R3; the second end of the third resistor R2 and the second end of the fourth resistor R3 are connected to the ground.

[0045] In some embodiments, the charging adapter 100 further comprises an indicator light connected to the charging controller 111, the on-off state of the indicator light indicates the connection state of the DC charger and the vehicle. The indicator light is not shown in FIG. 1, but is not intended to be limiting. Since when the vehicle is not reliably connected to the charging adapter 100 or the DC charger is not reliably connected to the charging adapter 100, at this time the electric vehicle cannot be charged, and the user cannot determine what causes it, the present application provides an indicator light for the plug-in gun, and when it is detected that the vehicle is reliably connected to the charging adapter 100 or the DC charger is reliably connected to the charging adapter 100, the on-off state of the indicator light indicates the connection state of the DC charger and the vehicle to the user.

[0046] In some embodiments, the indicator light comprises a first indicator light and a second indicator light, the on-off state of the first indicator light indicates the connection relationship between the charging adapter 100 and the DC charger; the on-off state of the second indicator light indicates the connection relationship between the charging adapter 100 and the vehicle.

[0047] In some embodiments, when the charging adapter 100 identifies that the DC charger is reliably connected to the charging adapter 100, the charging controller 111 lights up the first indicator light; when the charging adapter 100 does not identify that the DC charger is reliably connected to the charging adapter 100, the charging controller 111 turns off the first indicator light; when the charging adapter 100 identifies that the vehicle is reliably connected to the charging adapter 100, the charging controller 111 lights up the second indicator light; when the charging adapter 100 does not identify that the vehicle is reliably connected to the charging adapter 100, the charging controller 111 turns off the second indicator light. By adding the indicator light to indicate the connected state of the DC charger and the vehicle to the user, the user's use is facilitated, and the experience is good.

[0048] The charging adapter 100 of the present application embodiment simplifies the voltage detection point in the detection circuit to one voltage detection point by designing the electric vehicle and the charger and the detection circuit 112 of the charging adapter 100 as the same loop, without the need to set voltage detection points for the charger and the electric vehicle respectively, the loop is simple, thereby realizing the connection confirmation of the electric vehicle and the charger and the charging adapter 100, improving the connection reliability, also reducing the cost, and the user experience is better.

[0049] The charging adapter 100 according to another embodiment of the present application is described below in combination with FIG. 3, which is a more specific structural example of the charging adapter 100 described above. As shown in FIG. 3, the charging adapter 100 includes a charging controller (i.e., an integrated charging controller), a detection circuit, a switching circuit, a DC contactor, and a pulse width modulation circuit. The detection circuit includes a first resistor R, a control switch S, and a second resistor R1. The first end of the first resistor R is connected to a voltage U, the second end of the first resistor R is connected to the first end of the control switch S, the second end of the control switch S is connected to the first end of the second resistor R1, the second end of the second resistor R1 is connected to the output end of the charging adapter 100 and connected to one of the charging connection ends in the charging port of the vehicle (i.e., connected to the port CC1 end connected to the fifth resistor R4 in the vehicle), and there is a unique detection point (detection point 3) between the first resistor R and the control switch S, which is connected to the input end of the charging adapter 100 and connected to the output port of the DC charger (i.e., connected to the PP port connected to the resistor R_C, which is one of the charging connection ports of the output port of the DC charger), so that whether the DC charger and the vehicle are reliably connected to the charging adapter 100 can be determined through the detection point 3. The resistor R_C can be 1.5KΩ, the first resistor R can be 3KΩ, the second resistor R1 can be 2KΩ, the fifth resistor R4 in the vehicle can be 1KΩ, and the voltage U can be 12V. Of course, these resistors and voltages can also be other suitable values, which are not specifically limited.

[0050] When the integrated charging controller detects that the voltage at the detection point 3 is 12V, it can be determined that the vehicle is not connected to the charging adapter 100 and the DC charger is not connected to the charging adapter 100. When the integrated charging controller detects that the voltage at the detection point 3 is 4V, it can be determined that the vehicle is not connected to the charging adapter 100 and the DC charger is reliably connected to the charging adapter 100. When the integrated charging controller detects that the voltage at the detection point 3 is 6V, it can be determined that the vehicle is reliably connected to the charging adapter 100 and the DC charger is not connected to the charging adapter 100. When the integrated charging controller detects that the voltage at the detection point 3 is 3V, it can be determined that the vehicle is reliably connected to the charging adapter 100 and the DC charger is reliably connected to the charging adapter 100.

[0051] In some embodiments, the charging adapter 100 further comprises a switching circuit (switches K3 and K4), an auxiliary power supply, a DC contactor (KM), a pulse width modulation circuit (diode D1, third resistor R2, third switch S2 and fourth resistor R3), indicator lights (first indicator light LED1 and second indicator light LED2). Among them, the third resistor R2 can be 1.3KΩ, the fourth resistor R3 can be 2.74KΩ, and the diode D1 conduction voltage is 0.7V. These resistors can also be other suitable resistance values, which are not specifically limited. The integrated charging controller is connected to the switching circuit for controlling the opening and closing of the switching circuit, and the switching circuit is connected to the DC contactor.

[0052] The switch K3 is connected to the positive electrode A+ of the auxiliary power supply, and the switch K4 is connected to the negative electrode A- of the auxiliary power supply. When the switching circuit is closed, i.e. the switches K3 and K4 are closed, a closed loop is formed at this time, and the auxiliary power supply will provide auxiliary power to the electric vehicle. The auxiliary power is preferably 12V, and can also be other suitable voltage values. At the same time, the coil in the DC contactor is powered, and the normally open contact in the DC contactor is closed. At this time, the DC charger and the vehicle can detect the plug-in signal.

[0053] When the charging adapter 100 is reliably connected to the DC charger, and the vehicle is not reliably connected to the charging adapter 100, the voltage value of the detection point 3 at this time is 3V, the switching circuit is not closed, the coil of the DC contactor is not powered, and the normally open contact of the DC contactor is not closed. At this time, the vehicle and the DC charger cannot detect the plug-in signal, and the vehicle cannot be charged. When the charging adapter 100 is not reliably connected to the DC charger, and the vehicle is reliably connected to the charging adapter 100, the voltage value of the detection point 3 at this time is 6V, the switching circuit is not closed, the coil of the DC contactor is not powered, and the normally open contact of the DC contactor is not closed. At this time, the vehicle and the DC charger cannot detect the plug-in signal, and the vehicle cannot be charged. When the charging adapter 100 is not reliably connected to the DC charger, and the vehicle is not reliably connected to the charging adapter 100, the voltage value of the detection point 3 at this time is 12V, the switching circuit is not closed, the coil of the DC contactor is not powered, and the normally open contact of the DC contactor is not closed. At this time, the vehicle and the DC charger cannot detect the plug-in signal, and the vehicle cannot be charged. When the charging adapter 100 is reliably connected to the DC charger, and the vehicle is reliably connected to the charging adapter 100, the voltage value of the detection point 3 at this time is 3V, the switching circuit is closed through the integrated charging controller, the closing of the switching circuit causes the auxiliary power supply to provide auxiliary power to the vehicle, the DC loop is turned on, and the coil of the DC contactor is powered. At this time, the normally open contact of the DC contactor is also closed. After the normally open contact is closed, the vehicle and the DC charger can detect the plug-in signal.

[0054] In some embodiments, the DC contactor is connected to a pulse width modulation circuit for identifying a pulse width modulation wave (PWM wave). An input end of the DC contactor is also connected to one end of a second resistor R1 in the DC charger (i.e. an output port of the DC charger), and the other end of the second resistor R1 in the DC charger is connected to a voltage and inputs the PWM wave. An output end of the DC contactor is also connected to one end of a sixth resistor R5 in the vehicle, and the other end of the sixth resistor R5 is connected to one of the charging connection ports (CC2) in the vehicle charging port. In some embodiments, the second resistor R1 in the DC charger can be 1KΩ, and the sixth resistor R5 in the vehicle can be 1KΩ, and the resistors can also be other suitable resistance values, which are not specifically limited. The pulse width modulation circuit is also connected to the charging port of the vehicle, and the PWM wave is provided through the output port of the DC charger, transmitted to the pulse width modulation circuit through the DC contactor, and modulated and output.

[0055] In some embodiments, the integrated charging controller is also connected to indicator lights, which are divided into a first indicator light LED1 and a second indicator light LED2. The first indicator light LED1 is used to display the connection status of the DC charger and the charging adapter 100, and the second indicator light LED2 is used to display the connection status of the vehicle and the charging adapter 100.

[0056] When the charging adapter 100 identifies that the DC charger and the charging adapter 100 are reliably connected, the integrated charging controller lights up the first indicator light LED1. When the charging adapter 100 does not identify that the DC charger and the charging adapter 100 are reliably connected, the integrated charging controller turns off the first indicator light LED1. When the charging adapter 100 identifies that the vehicle and the charging adapter 100 are reliably connected, the integrated charging controller lights up the second indicator light LED2. When the charging adapter 100 does not identify that the vehicle and the charging adapter 100 are reliably connected, the integrated charging controller turns off the second indicator light LED2. By adding the indicator lights to indicate the connected status of the DC charger and the vehicle to the user, the user's use is facilitated, and the experience is good. The integrated charging controller is also connected to S+ and S- in the vehicle, which are CAN communication interfaces of the charger and the vehicle end, used to provide handshake signals between the DC charger and the vehicle controller, confirm each other's identity, perform high-voltage insulation and safety detection in the charger, determine the appropriate charging voltage and current according to the actual remaining capacity parameters of the power battery, and fully prepare for starting charging. In addition, the switches K1, K2, K5, and K6 in the figure represent that the opening and closing of these switches are controlled to provide a DC power supply.

[0057] The embodiment of the present application further provides a charging detection device, which comprises a detection circuit 112, a voltage detection device and a judging device, wherein the detection circuit 112 comprises a detection point; the voltage detection device is connected to the detection point of the detection circuit 112 and is used for detecting a voltage value of the detection point; and the judging device is connected to the voltage detection device and is used for determining a connection state of the vehicle and the DC charger according to the voltage value.

[0058] When the voltage value is 12V, it is determined that the connection state is that the vehicle is not connected and the DC charger is not connected; when the voltage value is 4V, it is determined that the connection state is that the vehicle is not connected and the DC charger is connected; when the voltage value is 6V, it is determined that the connection state is that the vehicle is connected and the DC charger is not connected; and when the voltage value is 3V, it is determined that the connection state is that the vehicle is connected and the DC charger is connected.

[0059] In some embodiments, the voltage detection device and the judging device can be sub-devices in the charging controller 111.

[0060] In some embodiments, the detection circuit 112 further comprises a first resistor R, a second resistor R1 and a control switch S, wherein a first end of the first resistor R is connected to a voltage end, a second end of the second resistor R1 is connected to an output end 130, a first end of the control switch S is connected to a second end of the first resistor R, and a second end of the control switch S is connected to a first end of the second resistor R1; and the detection point is located between the first resistor R and the control switch S.

[0061] In some embodiments, the first resistor R has a resistance of 3KΩ, and the second resistor R1 has a resistance of 2KΩ. The first resistor R and the second resistor R1 can also have other suitable resistances, which are not limited in particular.

[0062] In addition, the embodiment of the present application further provides a charging device, which can comprise the charging adapter 100 provided in the above embodiment or the charging detection device provided in the above embodiment.

[0063] In addition, the embodiment of the present application further provides a vehicle, which can comprise the charging adapter 100 provided in the above embodiment or the charging detection device provided in the above embodiment.

[0064] Based on the above description, the charging adapter, the charging device and the vehicle of the embodiment of the present application simplify the voltage detection point in the detection circuit to one voltage detection point by designing the detection circuit of the electric vehicle and the charger and the detection circuit of the charging adapter as the same loop, without the need to separately set voltage detection points for the charger and the electric vehicle, so that the loop is simple, the connection confirmation of the electric vehicle and the charger and the charging adapter is realized, the connection reliability is improved, the cost is reduced, and the user experience is better.

[0065] Although example embodiments have been described herein with reference to the accompanying drawings, it is to be understood that the example embodiments are intended to be illustrative only and are not intended to limit the scope of the application. Many variations and modifications of the example embodiments can be made by those skilled in the art without departing from the scope and spirit of the application. All such variations and modifications are intended to be included within the scope of the application as defined in the appended claims.

[0066] Similarly, it is to be understood that the various features of the application described can sometimes be used to advantage together, but each of the features can be used independently of one another. In this respect, no one feature is inherent in the other features. Furthermore, examples of the present application as described herein are to be construed as not limited. It is to be further understood that the steps or processes described can be modified or changed in various ways, and that other steps or processes can be added or removed. Accordingly, the application as described herein is to be construed as not limited.

[0067] Those skilled in the art will appreciate that all features described in this specification (including the summary of the application, abstract, and the claims) together with the drawings also form part of the original disclosure. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be appreciated that various features described herein can form the basis of separate or alternative embodiments of the application.

[0068] In addition, those skilled in the art will appreciate that, unless otherwise indicated herein, embodiments described herein describe only example embodiments and do not limit the scope of the application. Many alternatives not explicitly described can be used. Thus, for example, the order of steps can differ from that described.

[0069] It is to be understood that the above description is illustrative only and not restrictive in nature. There are many alternative ways of implementing the application described herein. The scope of the application is not, therefore, intended to be limited to the examples described herein but is only limited by the scope of the attached claims, appropriately interpreted, with all equivalents of the claimed

[0070] The above merely provides specific implementation manners or specific implementation manners of the present application, and the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, and all the changes or replacements should be covered in the protection scope of the present application. The protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A charging adapter device (100), wherein, The charging adapter (100) comprises: a charging adapter body (110); and an input end (120) and an output end (130) arranged on the charging adapter body (110), the input end (120) being used for connecting a DC charger, and the output end (130) being used for connecting a vehicle; wherein the charging adapter body (110) comprises a charging controller (111) and a detection circuit (112) connected with the charging controller (111); the detection circuit (112) comprises a detection point, and the charging controller (111) is connected to the detection point to detect a connection state of the DC charger and the vehicle through the detection point.

2. The charging adapter (100) according to claim 1, wherein the detection circuit (112) further comprises: a first resistor (R), a first end of the first resistor (R) being connected to a voltage end; a second resistor (R1), a second end of the second resistor (R1) being connected to the output end (130); and a control switch (S), a first end of the control switch (S) being connected to a second end of the first resistor (R), and a second end of the control switch (S) being connected to a first end of the second resistor (R1); wherein the detection point is located between the first resistor (R) and the control switch (S).

3. The charging adapter (100) according to claim 1 or 2, the charging adapter (100) further comprising: a switch circuit and an auxiliary power supply; the switch circuit is connected with the charging controller (111); the auxiliary power supply is connected with the switch circuit.

4. The charging adapter (100) of claim 3, the charging adapter (100) further comprising: a DC contactor connected with the switch circuit.

5. The charging adapter (100) according to claim 3 or 4, the switching circuit comprising: a first switch and a second switch; a first end of the first switch and a first end of the second switch are connected with the auxiliary power supply; a second end of the first switch and a second end of the second switch are connected with the DC contactor.

6. The charging adapter (100) according to claim 4 or 5, the charging adapter (100) further comprising: a pulse width modulation circuit connected with the DC contactor.

7. The charging adapter (100) of claim 6, the pulse width modulation circuit comprising: a diode (D1), a third switch (S2), a third resistor (R2) and a fourth resistor (R3); a positive electrode of the diode (D1) is connected with the DC contactor; a negative electrode of the diode (D1) is connected with a first end of the third resistor (R2) and a first end of the third switch (S2); a second end of the third switch (S2) is connected with a first end of the fourth resistor (R3); and a second end of the third resistor (R2) and a second end of the fourth resistor (R3) are connected to a ground end.

8. The charging adapter (100) according to any one of claims 1 to 7, further comprising: an indicating lamp connected with the charging controller (111), a bright-dark state of the indicating lamp indicating a connection state of the DC charger and the vehicle.

9. The charging adapter (100) of claim 8, the indicator light comprising: a first indicating lamp (LED1) and a second indicating lamp (LED2); a bright-dark state of the first indicating lamp (LED1) indicating a connection relationship of the charging adapter (100) and the DC charger; and a bright-dark state of the second indicating lamp (LED2) indicating a connection relationship of the charging adapter (100) and the vehicle.

10. A charge detection device, wherein, the charging detection device comprises a detection circuit (112), a voltage detection device and a judgment device; the detection circuit (112) comprises a detection point; The voltage detecting device is connected to the detection point of the detection circuit (112) and is used to detect the voltage value of the detection point; and The judging device is connected to the voltage detecting device and is used to determine the connection state of the vehicle and the DC charger according to the voltage value.

11. The charging detection device according to claim 10, wherein the detection circuit (112) further comprises: a first resistor (R), a first end of which is connected to a voltage end; a second resistor (R1), a second end of which is connected to an output end (130); and a control switch (S), a first end of which is connected to a second end of the first resistor (R), and a second end of which is connected to a first end of the second resistor (R1); wherein the detection point is located between the first resistor (R) and the control switch (S).

12. The charging detection device according to claim 10 or 11, wherein the judging device is used to: determine that the connection state is that the vehicle is not connected and the DC charger is not connected when the voltage value is 12V; determine that the connection state is that the vehicle is not connected and the DC charger is connected when the voltage value is 4V; determine that the connection state is that the vehicle is connected and the DC charger is not connected when the voltage value is 6V; and determine that the connection state is that the vehicle is connected and the DC charger is connected when the voltage value is 3V.

13. The charging detection device according to claim 11 or 12, wherein the first resistor (R) has a resistance of 3KΩ.

14. The charging detection device according to any one of claims 11 to 13, wherein the second resistor (R1) has a resistance of 2KΩ. The charging device comprises the charging adapter (100) according to any one of claims 1 to 9 or the charging detection device according to any one of claims 10 to 14. The vehicle comprises the charging adapter (100) according to any one of claims 1 to 9 or the charging detection device according to any one of claims 10 to 14.

15. A charging device, wherein, ​ 16. A vehicle, wherein, ​

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