CN210554253U

CN210554253U - Novel charging seat insertion force detection protection device

Info

Publication number: CN210554253U
Application number: CN201920828943.1U
Authority: CN
Inventors: 椤炬芳; 顾淼
Original assignee: Nolead Shanghai Automotive Technology Co Ltd
Current assignee: Nolead Shanghai Automotive Technology Co Ltd
Priority date: 2019-06-04
Filing date: 2019-06-04
Publication date: 2020-05-19
Anticipated expiration: 2029-06-04

Abstract

The utility model discloses a novel charging seat insertion force detects protection device, including charging socket, the rifle that charges is provided with micro-gap switch with the contact surface of charging socket, and micro-gap switch's surface is provided with pressure sensor, and pressure sensor draws forth low voltage wire and connects battery management module, and battery management module passes through automobile body control bus with received signal and transmits the panel board. The novel design adopts the product that integrates, and be connected the power with whole car, both CAN use after ground connection and the CAN bus signal line, CAN in time read the size of the every access power of charging seat to whether will the charging seat atress at every turn normally sends for whole car CAN network through the CAN bus, CAN realize the change maintenance to the control of the insertion power of charging seat and in time warn the charging seat, confirm that the charging seat guarantees safe state when using, do benefit to popularization and use.

Description

Novel charging seat insertion force detection protection device

Technical Field

The utility model relates to a new energy automobile technical field, in particular to novel charging seat insertion force detects protection device.

Background

With the rapid development of new energy vehicle technology, the high-voltage safety problem of the vehicle-mounted charging seat is attracted wide attention; compared with the traditional vehicle, the new energy electric vehicle has the advantages that the charging seat is an input carrier of the energy of the new energy electric vehicle, but the potential risk of fire due to high current and high voltage and temperature rise exists in the charging process; thus requiring a check for the time the charging gun is inserted. The plug-in force of the charging seat has a range when the charging seat is designed, if the plug-in force is too large or impurities exist in the charging seat, the charging seat can be deformed or terminals can be deformed, but the current charging seat does not detect the plug-in force, so that a client does not know whether the charging seat has potential safety hazards or not.

The charging seat on the existing market does not have the detection of the high-voltage rifle insertion force of charging, and when the electric motor car is preparing the charging process, because there is impurity in the charging seat, leads to charging the rifle and can't normally insert in the charging seat. If too much force is applied, the terminal can be deformed, so that the contact surface of the terminal and a charging gun is reduced, the temperature of a high-voltage charging seat is too high, the charging seat can be directly damaged and ablated, the insulation fault of the whole vehicle is caused, and even the serious accident of vehicle burning can be caused in serious conditions.

In summary, in view of the problems in the prior art, a novel charging seat insertion force detection protection device is particularly needed to solve the deficiencies in the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel charging seat insertion force detects protector, the modern design, when there is impurity or terminal to take place deformation in the charging seat, can indicate on the instrument in time to overhaul, the troubleshooting, confirm the state that the charging seat guaranteed safety when using, the defect of prior art has been solved.

In order to achieve the above purpose, the technical solution of the present invention is as follows:

the utility model provides a novel charging seat insertion force detects protector, is provided with micro-gap switch including charging socket, the rifle that charges and the contact surface of charging socket, and micro-gap switch's surface is provided with pressure sensor, and pressure sensor draws forth low voltage wire and connects battery management module, and battery management module passes through automobile body control bus with received signal and transmits the panel board.

Further, the pressure sensor adopts an RFP-602 film pressure sensor.

Further, the pressure sensor is led out by adopting a 2P pin.

The utility model has the advantages that: the novel design adopts the product that integrates, and be connected the power with whole car, both CAN use after ground connection and the CAN bus signal line, CAN in time read the size of the every access power of charging seat to whether will the charging seat atress at every turn normally sends for whole car CAN network through the CAN bus, CAN realize the change maintenance to the control of the insertion power of charging seat and in time warn the charging seat, confirm that the charging seat guarantees safe state when using, do benefit to popularization and use.

Drawings

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a structural diagram of the charging socket of the present invention;

FIG. 3 is a flow chart of the present invention;

figure 100-charging receptacle; 110-a charging gun; 120-a microswitch; 130-pressure sensor, 140-battery management module, 150-body control bus, 160-dashboard.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.

As shown in fig. 1, 2, and 3, a novel charging stand insertion force detection protection device includes a charging socket 100 and a charging gun 110, a micro switch 120 is disposed on a contact surface between the charging gun 110 and the charging socket 100, a pressure sensor 130 is disposed on a surface of the micro switch 120, a low-voltage lead is led out from the pressure sensor 130 and connected to a battery management module 140, the battery management module 140 transmits a received signal to an instrument panel 160 through a vehicle body control bus 150, and the pressure sensor 130 employs an RFP-602 film pressure sensor. The pressure sensor 130 is led out by a 2P pin. When the rifle that charges inserts the socket that charges, on pressure sensor can be touch to the rifle bottom of charging, micro-gap switch provided a stroke for pressure sensor, pressure sensor can record the size of the insertion force each time, monitors the safe handling of charging seat, gives the warning in advance, avoids dangerous emergence.

The RFP-602 film pressure sensor is arranged on the microswitch, the microswitch is arranged on the contact surface of the high-voltage charging seat and the charging gun, and the RFP-602 film pressure sensor leads out a low-voltage lead to the BMS controller, namely the battery management module. When the insertion force is less than 100N, the charging gun can be normally inserted, the charging seat and the charging gun can be smoothly matched, and the charging is normally finished; when the insertion force is larger than 100N, the RFP-602 CAN transmit a signal to the BMS controller, and the BMS transmits a signal to the instrument through the CAN bus after receiving the signal to prompt that the charging seat of the driver is overhigh in insertion force and remind the driver of overhauling.

The method comprises the following concrete steps:

in the first step, an RFP-602 membrane pressure sensor is mounted to a microswitch, which is mounted to the contact surface of a high voltage charger.

In the second step, 2 PIN PINs are connected to the BMS controller via low voltage connectors from the RFP-602 membrane pressure sensor.

Thirdly, in the process of inserting the charging gun, the RFP-602 membrane pressure sensor can be contacted with the base of the charging gun, the micro switch can provide an up-and-down stroke for the RFP-602 membrane pressure sensor, when the insertion force is changed, the blocking inside the RFP-602 membrane pressure sensor can be changed and then transmitted to the BMS controller, and when the stress of the RFP-602 membrane pressure sensor is less than 100N, the BMS controller receives a signal in a normal state: when the stress of the RFP-602 membrane pressure sensor is more than 100N, the BMS controller CAN send a warning signal to the instrument through the CAN bus signal to display the maintenance state.

The utility model discloses an integrate the product, RFP-602 film pressure sensor places on micro-gap switch, has both used after being connected power, ground connection and CAN bus signal line with whole car, CAN detect the size of insertion force in the rifle insertion process that charges, through sensor resistance change with signal transmission for BMS, report to the instrument through the CAN bus and show whether normal the inside stress state of charging seat. The warning driver that can be timely avoids dangerous emergence, can protect the charging seat simultaneously, avoids the charging seat to receive the extrusion of abnormal effort and leads to damaging, improves the life of charging seat.

The utility model discloses RFP-602 film pressure sensor is the resistance-type pressure sensor that sensitivity ratio is higher, receives extruded in the charging seat bottom, can be quick give an instantaneous signal of BMS, and the dependable performance is stable, installs RFP-602 pressure sensor pressure real-time supervision in heavy current high voltage connector and has played the guarantee of relative safety, has avoided the possibility to personal safety and vehicle damage, and suggestion navigating mate's effect is simple and easy convenient.

The utility model discloses make traditional charging seat, through pressure sensor's application, become more intelligent, the health degree of charging seat can be known at any time to the driver to according to using the charging seat condition, regularly changing the charging seat on time, realized that the driver is better drives and experienced, and avoided because the overuse of charging seat, and the charge inefficacy that arouses and the potential safety hazard of avoiding vehicle and personnel.

It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a novel charging seat insertion force detects protector, includes charging socket, the rifle that charges, its characterized in that: the contact surface of the charging gun and the charging socket is provided with a microswitch, the surface of the microswitch is provided with a pressure sensor, a low-voltage lead is led out from the pressure sensor and connected with a battery management module, and the battery management module transmits a received signal to an instrument panel through a vehicle body control bus.

2. The novel charging seat insertion force detection protector of claim 1, characterized in that: the pressure sensor employs an RFP-602 diaphragm pressure sensor.

3. The novel charging seat insertion force detection protector of claim 1, characterized in that: the pressure sensor is led out by adopting a 2P pin.