CN216761485U

CN216761485U - Fill electric pile with awaken up that charges

Info

Publication number: CN216761485U
Application number: CN202220079744.7U
Authority: CN
Inventors: 陈盼; 许凯; 韦聪; 万军
Original assignee: Zhejiang Chargedot New Energy Technology Co ltd; Shanghai Abb Lianzhuang New Energy Technology Co ltd
Current assignee: Zhejiang Chargedot New Energy Technology Co ltd; Shanghai Abb Lianzhuang New Energy Technology Co ltd
Priority date: 2022-01-13
Filing date: 2022-01-13
Publication date: 2022-06-17
Anticipated expiration: 2032-01-13

Abstract

The application provides a pair of electric pile that fills with awakening of charging, it includes to fill electric pile: a lance tip, comprising: the circuit comprises a first resistor, a first switch connected with the first resistor in parallel, and a second resistor connected with the first switch in series; the first switch is connected with a second switch in series, and the first switch and the second switch are connected in parallel with a first resistor; the controller is used for sending a wake-up instruction to wake up charging; and the switch driving circuit is respectively connected with the controller and the second switch and used for outputting voltage according to the awakening instruction so as to control the second switch to execute one opening action and one closing action. According to the method and the device, awakening after charging termination can be achieved, the vehicle does not need to be transformed or additionally installed, automatic awakening under unmanned conditions can be achieved, or awakening is timed, and stability and power utilization convenience of the charging process are greatly guaranteed.

Description

Fill electric pile with awaken up that charges

Technical Field

The application relates to the technical field of charging control and charging piles, in particular to a charging pile with charging awakening function.

Background

Fig. 1 is a schematic diagram of a conventional charging circuit. The figure shows the ac charging control pilot circuit and control principle described in appendix a of GB/T18487.1-2015, specifically the control pilot circuit principle of the charging mode 3 connection mode C. At present, a vehicle control device triggers vehicle charging wake-up by detecting a change of a resistor between a PE and a CC, wherein a switch S3 is switched from an open state to a closed state by pressing a button of a gun head, so that a resistance value detected by the vehicle control device is changed from RC + R4 to RC, and charging wake-up is triggered.

And when charging is suspended:

1) if the charging pile CP signal is changed into direct-current voltage to be output, the electric vehicle can judge that the transaction is finished and enters a dormant state;

2) even if the CP signal of the charging pile keeps PWM square wave output, the electric vehicle can also actively stop the charging process and enter a dormant state after a certain time because the AC power supply loop has no power output.

The reliable way to wake up an electric vehicle after it has gone to sleep is to reinsert the charging gun, which, while effective for all electric vehicles, cannot be re-woken up when the owner of the vehicle does not find or leave. In addition, some charging pile manufacturers can also wake up the dormant electric vehicle by changing the CP signal (for example, setting the CP signal to negative 12V dc output) after the charging pile manufacturers are in agreement with the electric vehicle manufacturers, but this requires participation of the vehicle side, and thus, the practical application and popularization are difficult.

Therefore, it is necessary to provide a guidance circuit based on the conventional ac charging control, which can intelligently wake up again after the vehicle is stopped.

SUMMERY OF THE UTILITY MODEL

In view of the above drawbacks of the prior art, an object of the present application is to provide a charging pile with wake-up function, so as to solve the problem of wake-up after the charging is terminated.

In order to achieve the above objects and other related objects, the present application provides a charging pile with wake-up on charging, the charging pile includes: a lance tip, comprising: the circuit comprises a first resistor, a first switch connected with the first resistor in parallel, and a second resistor connected with the first switch in series; the first switch is connected with a second switch in series, and the first switch and the second switch are connected in parallel with a first resistor; the controller is used for sending a wake-up instruction to wake up charging; and the switch driving circuit is respectively connected with the controller and the second switch and used for outputting voltage according to the awakening instruction so as to control the second switch to execute one opening action and one closing action.

In an embodiment of the present application, the first switch is a normally closed switch.

In an embodiment of the application, the lance tip further includes: a button is pressed down and used for releasing the mechanical locking of the gun head; the first switch of the push button is pressed to be disconnected, and the first switch of the push button is released to be closed.

In an embodiment of the present application, the second switch is a relay switch.

In an embodiment of the present application, the second switch is a normally closed relay switch.

In an embodiment of the present application, the wake-up command includes an instant wake-up command and a timing wake-up command.

In an embodiment of the present application, the wake-up command includes a one-off command and a one-on command.

To sum up, the utility model provides a fill electric pile with charge and awaken up, fill electric pile and include: a lance tip, comprising: the circuit comprises a first resistor, a first switch connected with the first resistor in parallel, and a second resistor connected with the first switch in series; the first switch is connected with a second switch in series, and the first switch and the second switch are connected in parallel with a first resistor; the controller is used for sending a wake-up instruction to wake up charging; and the switch driving circuit is respectively connected with the controller and the second switch and used for outputting voltage according to the awakening instruction so as to control the second switch to execute one opening action and one closing action.

According to the method and the device, awakening after charging termination can be achieved, the vehicle does not need to be transformed or additionally installed, automatic awakening under the unmanned condition can be achieved, or awakening at regular time is achieved, and stability and power utilization convenience of the charging process are greatly guaranteed.

Drawings

Fig. 1 is a schematic diagram of a conventional charging circuit according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of a charging source circuit according to an embodiment of the present invention.

Detailed Description

The following description of the embodiments of the present application is provided by way of specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. The present application is capable of other and different embodiments and its several details are capable of modifications and/or changes in various respects, all without departing from the spirit of the present application. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.

It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present application, and although the drawings only show the components related to the present application and are not drawn according to the number, shape and size of the components in actual implementation, the type, quantity and proportion of each component in actual implementation may be changed at will, and the layout of the components may be more complicated.

Throughout the specification, when a part is referred to as being "connected" to another part, this includes not only a case of being "directly connected" but also a case of being "indirectly connected" with another element interposed therebetween. In addition, when a certain part is referred to as "including" a certain component, unless otherwise stated, other components are not excluded, but it means that other components may be included.

The terms first, second, third, etc. are used herein to describe various elements, components, regions, layers and/or sections, but are not limited thereto. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the scope of the present application.

Also, as used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," and/or "comprising," when used in this specification, specify the presence of stated features, operations, elements, components, items, species, and/or groups, but do not preclude the presence, or addition of one or more other features, operations, elements, components, items, species, and/or groups thereof. The terms "or" and/or "as used herein are to be construed as inclusive or meaning any one or any combination. Thus, "A, B or C" or "A, B and/or C" means "any of the following: a; b; c; a and B; a and C; b and C; A. b and C ". An exception to this definition will occur only when a combination of elements, functions or operations are inherently mutually exclusive in some way.

Fig. 2 shows a schematic diagram of the charging primary circuit according to the present application. As shown, it includes: the charging pile comprises a charging pile 100 and a vehicle 200, wherein the charging pile 100 is provided with a gun head, the vehicle 200 is provided with a socket 210, and the gun head 110 is inserted into the socket 210 for charging.

In this application, the charging pile 100 includes: a lance tip 110; the lance tip 110 includes: the circuit comprises a first resistor R4, a first switch S3 connected with the first resistor R4 in parallel, and a second resistor RC connected with the first switch S3 in series. Wherein the first switch is a normally closed switch. The lance tip 110 further comprises: a push button (not shown) is pressed down for releasing the mechanical locking of the gun head 110; the first switch of the push button is pressed to be disconnected, and the first switch of the push button is released to be closed.

In brief, the first resistor R4 and the second resistor RC are installed in the gun head 110, the first switch S3 is an internal normally closed switch of the gun head 110, and is linked with a push button on the gun head 110, the push button (e.g., a trigger) is used to trigger the mechanical locking device, and the push button can release the mechanical locking function and simultaneously turn off the first switch S3.

And (3) a conventional wake-up process: the vehicle 200 control device on the vehicle 200 determines whether the lance tip 110 is completely connected to the socket 210 of the vehicle 200 by measuring the resistance value between the detection point 3 and PE (ground line).

1) If the lance tip 110 is not inserted into the socket 210, the resistance value detected by the control device of the vehicle 200 is infinite;

2) when the push button is pressed, the mechanical locking device of the gun head 110 is contacted, the first switch S3 is switched off, and the gun head 110 is inserted into the socket 210, wherein the resistance value detected by the control device of the vehicle 200 is RC + R4;

3) when the lance tip 110 is inserted into the socket 210 of the vehicle 200 and the push button is released, the first switch S3 is closed again, and the resistance value detected by the control device of the vehicle 200 is RC.

4) When the vehicle 200 control device detects that the resistance value is RC → RC + R4, the charging function or module of the vehicle 200 is awakened and charging is started.

Charging and stopping processes:

the vehicle 200 detects the CP signal in real time through the detection point 2: the CP signal is a PWM square wave, which correspondingly indicates whether the charging pile 100 can normally provide electric energy or normally charge; when the CP signal is dc, the charging pile 100 cannot provide electric energy normally, for example, the charging is finished normally or cannot be continued due to a fault.

In the charging process, the charging pile 100 outputs the PWM square wave through the CP signal while outputting the electric energy from the ac power supply circuit; when charging is stopped, the charging pile 100 disconnects the output relay, the alternating current power supply loop has no electric energy output, and at the moment, the CP signal can be set to be direct current voltage output or the PWM square wave output is continuously kept.

When the charging is stopped, if the charging pile 100CP signal is changed into the dc voltage output, the vehicle 200 will determine that the transaction is finished and enter a sleep state; even if the charging pile 100CP signal keeps PWM square wave output, the electric vehicle 200 will actively stop the charging process and enter the sleep state after a certain time since the ac power supply circuit has no power output.

Because the vehicle 200 control device determines whether the charging gun is inserted into the electric vehicle 200 by measuring the resistance between the detection point 3 and the PE, the reliable way for waking up the electric vehicle 200 after sleeping is to reinsert the charging gun, which is effective for all electric vehicles 200, but when the owner of the vehicle does not find or leave, the intelligent re-waking cannot be performed; in addition, in some examples, the charging pile 100 manufacturer may also wake up the sleeping electric vehicle 200 by changing the CP signal (e.g., setting to negative 12V dc output) after interfacing with the electric vehicle 200 manufacturer via a protocol, but this requires participation of the vehicle 200, which may cause difficulty in practical application and popularization.

In order to improve the above problem, the present application simulates the gun insertion process (i.e., the process of simulating RC + R4 → RC) by adding the second switch S4, the controller 120 and the switch driving circuit 130, thereby ensuring that the electric vehicle 200 can be awakened and recharged at an appropriate time even though it enters the sleep state.

Specifically, the first switch S3 is connected in series with a second switch S4, and the first switch S3 and the second switch S4 are connected in parallel with the first resistor R4; a controller 120 for generating or receiving a wake-up command for suspending charging or waking up charging; the switch driving circuit 130 is connected to the controller 120 and the second switch S4, respectively, and is configured to output a voltage according to the wake-up command to control on/off of the second switch S4.

In this embodiment, the second switch S4 is a relay switch. Preferably, the second switch S4 is a normally closed relay switch.

In short, normally, the second switch S4 is in a normally closed state, and during the process before and after the gun head 110 is inserted into the socket 210, the state of the first switch S3 changes to closed → open → closed, and when the vehicle 200 control device detects that the resistance is RC + R4 → RC, the electric vehicle 200 is awakened and the charging is started.

When the charging is suspended and the electric vehicle 200 needs to be awakened again, the first switch S3 is in the normally closed state, the controller 120 controls the switch state of the second switch S4 to be closed → opened → the simulated gun insertion process is closed through the switch driving circuit 130, and when the vehicle 200 control device detects that the resistance is RC + R4 → RC, the electric vehicle 200 is awakened and the charging is started.

The wake-up instruction comprises a one-time disconnection instruction and a one-time connection instruction. In brief, the controller 120 sends an opening command once to make the switch state of the second switch S4 from closed → open, and the vehicle 200 control device detects that the resistance is RC + R4, and sends a closing command once again to make the switch state of the second switch S4 from open → closed, and the vehicle 200 control device detects that the resistance is RC + R4 → RC, so that the electric vehicle 200 is woken up and starts charging.

In this embodiment, the wake-up command includes an instant wake-up command and a timing wake-up command

For example, when the charging pile 100 detects an unexpected termination of charging, the automatic trigger controller 120 sends an instant wake-up command to re-wake up the charging function of the vehicle 200.

For another example, the user may set when to charge after inserting the gun head 110, for example, when to charge during a low-price electricity consumption interval during the evening, the user stops and inserts the charging gun into the electric vehicle 200, then sets a start time at the app or the charging pile 100, and after reaching the set time, the charging pile 100 controls the second switch S4 to switch from closed → open → closed to simulate the gun inserting process, wakes up the electric vehicle 200, and starts charging. Like this, the user can charge at night power consumption trough time, saves the cost.

In conclusion, the charging pile with charging awakening function can realize awakening after charging termination, does not need to modify or install a vehicle, can realize automatic awakening under unmanned conditions or awaken regularly, and greatly ensures stability and power utilization convenience of a charging process.

The above embodiments are merely illustrative of the principles and utilities of the present application and are not intended to limit the application. Any person skilled in the art can modify or change the above-described embodiments without departing from the spirit and scope of the present application. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed in the present application shall be covered by the claims of the present application.

Claims

1. An electric pile is filled with awakening of charging, its characterized in that fills electric pile and includes:

a lance tip, comprising: the circuit comprises a first resistor, a first switch connected with the first resistor in parallel, and a second resistor connected with the first switch in series; the first switch is connected with a second switch in series, and the first switch and the second switch are connected in parallel with a first resistor;

the controller is used for sending a wake-up instruction to wake up charging;

and the switch driving circuit is respectively connected with the controller and the second switch and used for outputting voltage according to the awakening instruction so as to control the second switch to execute one opening action and one closing action.

2. The charging post with wake-up on charge of claim 1, wherein the first switch is a normally closed switch.

3. The charging post with wake-up on charge of claim 2, further comprising: a button is pressed down and used for releasing the mechanical locking of the gun head; the first switch of the push button is pressed to be disconnected, and the first switch of the push button is released to be closed.

4. The charging post with charge wake-up of claim 1, wherein the second switch is a relay switch.

5. The charging post with wake-up on charge of claim 4, wherein the second switch is a normally closed relay switch.

6. The charging post with charging wakeup according to claim 1, wherein the wakeup command comprises an instant wakeup command and a timed wakeup command.

7. Charging post with wake-up on charge according to claim 1 or 6, characterized in that said wake-up command comprises a one-time off command and a one-time on command.