Search

EP-4485709-B1 - HIGH-VOLTAGE CONNECTOR CAPABLE OF REALIZING JOGGING CONTROL OVER HIGH-VOLTAGE INTER-LOCK

EP4485709B1EP 4485709 B1EP4485709 B1EP 4485709B1EP-4485709-B1

Inventors

  • WANG, CHAO

Dates

Publication Date
20260513
Application Date
20230217

Claims (7)

  1. A high-voltage connector for jogging control over high-voltage inter-lock, comprising a socket housing (1) and a plug housing (6), wherein a high-voltage male terminal (5) and a high-voltage female terminal (9), which are electrically connectable to each other by being plugged with each other, are provided in the socket housing (1) and the plug housing (6), respectively; and the high-voltage connector further comprises a high-voltage inter-lock system, on which a jogging control structure (4) is provided, wherein the jogging control structure (4) is configured to control, by means of a short-distance action, the high-voltage inter-lock system to be powered on or powered off, so as to control an electrical connectivity state between the high-voltage male terminal (5) and the high-voltage female terminal (9); wherein the high-voltage inter-lock system comprises two high-voltage inter-lock terminals (3) provided in the socket housing (1), and the jogging control structure (4) comprises a jogging control housing (44) provided in the socket housing (1) and a high-voltage inter-lock ejector block (8) provided in the plug housing (6); and a high-voltage inter-lock short-distance connection reed (42) is slidably provided in the jogging control housing (44), and the high-voltage inter-lock ejector block (8) is capable of ejecting and pushing the high-voltage inter-lock short-distance connection reed (42) to slide to be electrically connected to the high-voltage inter-lock terminals (3); wherein a jogging control slider (43) is slidably provided in the jogging control housing (44), the high-voltage inter-lock short-distance connection reed (42) is connected to a side of the j ogging control slider (43) away from the high-voltage inter-lock ejector block (8), and a return spring (41) is provided on and abutted against a side of the high-voltage inter-lock short-distance connection reed (42) away from the high-voltage inter-lock ejector block (8); and the high-voltage inter-lock ejector block (8) is capable of ejecting and pushing the jogging control slider (43) and the high-voltage inter-lock short-distance connection reed (42) to slide towards the high-voltage inter-lock terminals (3), and the return spring (41) is capable of pushing the jogging control slider (43) to slide away from the high-voltage inter-lock terminals (3); characterized in that the high-voltage inter-lock short-distance connection reed (42) is bent in a bow shape to form a first accommodating curved groove (421), two sides of which form a second accommodating curved groove (422), respectively, and the return spring (41) is provided in the first accommodating curved groove (421); and the jogging control slider (43) comprises a slider body (432) provided with two reed connecting plates (433) which are clamped in the second accommodating curved grooves (422), respectively.
  2. The high-voltage connector for jogging control over high-voltage inter-lock according to claim 1, wherein a side of the jogging control housing (44) close to the high-voltage inter-lock terminals (3) is provided with an opening, a sidewall of the jogging control housing (44) away from the high-voltage inter-lock terminals (3) is provided with a guide post (431) through-hole, and the jogging control slider (43) is provided with a guide post (431) slidably inserted into the guide post (431) through-hole; and the high-voltage inter-lock ejector block (8) is capable of ejecting the guide post (431) to push the jogging control slider (43).
  3. The high-voltage connector for jogging control over high-voltage inter-lock according to claim 1, wherein two sidewalls of the first accommodating curved groove (421) are provided with a connecting tab (423), respectively, the two reed connecting plates (433) are provided with a tab clamping groove (434), respectively, and each of the connecting tabs (423) is clamped in the corresponding tab clamping groove (434).
  4. The high-voltage connector for jogging control over high-voltage inter-lock according to claim 1, wherein two ends of the high-voltage inter-lock short-distance connection reed (42) are provided with a reed insertion portion (424), respectively, the slider body (432) is provided with reed plugging grooves (435), and the reed insertion portions (424) are inserted into the reed plugging grooves (435), respectively.
  5. The high-voltage connector for jogging control over high-voltage inter-lock according to claim 1, wherein a positioning block (12) is provided in the socket housing (1), a positioning clamping groove (13) is provided on the positioning block (12), a positioning protrusion (442) is provided on the jogging control housing (44), and the positioning protrusion (442) is clamped in the positioning clamping groove (13).
  6. The high-voltage connector for jogging control over high-voltage inter-lock according to claim 2, wherein the high-voltage inter-lock ejector block (8) is provided on an ejector block enclosure frame (81), which is detachably clamped in the plug housing (6); and an end of the high-voltage inter-lock ejector block (8) is provided with an abutting hole (82), which is capable of abutting against the guide post (431) to push the guide post (431) to slide.
  7. The high-voltage connector for jogging control over high-voltage inter-lock according to claim 2, wherein the high-voltage inter-lock terminals (3) are plugged into the socket housing (1) from an end away from the plug housing (6), and the high-voltage inter-lock terminals (3) are locked and fixed in the socket housing (1) by a dual self-locking structure (2).

Description

RELATED APPLICATION The present disclosure claims priority to Chinese Patent Application No. 202210176329.8, entitled "high-voltage connector for jogging control over high-voltage inter-lock", and filed on February 24, 2022. TECHNICAL FIELD The present disclosure relates to the technical field of high-voltage connectors of new energy vehicles, and particularly to a high-voltage connector for jogging control over high-voltage inter-lock. BACKGROUND With the rapid development of new energy vehicles, the high-voltage connectors of new energy vehicles are constantly updated. However, safety issues related to high-voltage connectors remain a critical concern. The high-voltage connectors of new energy vehicles include high-voltage inter-lock devices, which are used to confirm the integrity of the entire high-voltage electrical system with a small current of 12V. All high-voltage components and wiring harness connectors of the whole vehicle must be mounted in place without short circuit or open circuit. When a controller detects that a High Voltage Inter-lock (HVIL) loop is disconnected or the integrity is damaged, it initiates essential safety measures. When detecting that the high-voltage inter-lock circuit is disconnected and judging that there is a risk in the vehicle system, a Battery Management System (BMS) selects different essential safety measures according to the vehicle conditions at that time. Until the vehicle is stationary and the high-voltage inter-lock forms a complete loop, a high-voltage loop is powered on. When a high-voltage inter-lock loop is disconnected, the high-voltage loop is powered off immediately. When a high-voltage connector needs to be plugged or unplugged for vehicle maintenance, the high-voltage inter-lock can ensure the safety of operators: when the high-voltage connector is to be unplugged, the high-voltage inter-lock loop must be disconnected before the high-voltage loop is disconnected; when the high-voltage connector is to be plugged, the high-voltage inter-lock circuit is connected and conducted after a power terminal is contacted and conducted; otherwise the power terminal will be still in a live state during plugging and unplugging of the high-voltage connector, which is easy to cause arcing and endanger the personal safety of operators. As illustrated in FIGS. 17 and 18, the high-voltage inter-lock devices in the prior art for high-voltage connection all use a pin terminal 201 to cooperate with a socket terminal 202 to form a high-voltage inter-lock loop. Since both the pin terminal 201 and the socket terminal 202 have a certain length, when an operator plugs or unplugs the high-voltage connector, he has to plug or unplug for a certain distance to disconnect or connect the inter-lock loop. However, during the plugging and unplugging process, the high-voltage loop is still in a live state, which means that the operator's operation for a period of time is still high-voltage live plugging and unplugging, thus posing a risk to the operator's safety and creating a potential safety hazard. A high voltage connector for vehicle is known in the prior art, e.g. from US2017/062996A1. A high-voltage electrical connector with an inter-lock circuit is known in the prior art, e.g. from CN207602930U. Therefore, based on years of experiences and practices in related industries, the inventor proposes a high-voltage connector for jogging control over high-voltage inter-lock, so as to overcome the defects in the prior art. SUMMARY The present invention is defined by the independent claims. Further embodiments are set forth in the dependent claims. Any references to inventions or embodiments not falling within the scope of the independent claims are to be interpreted as examples useful for understanding the invention. The present disclosure aims to provide a high-voltage connector for jogging control over high-voltage inter-lock, which solves the problems mentioned in the section of Background, realizes a jogging control over high-voltage inter-lock, such that a high-voltage inter-lock system can be switched on and switched off within an extremely short period of time, thereby greatly reducing a distance of live-line plugging and unplugging, and controlling the power-on and power-off of a high-voltage loop within an extremely short period of time. The objective of the present disclosure is achieved by a high-voltage connector for jogging control over high-voltage inter-lock according to independent claim 1. Based on the above description, the high-voltage connector for jogging control over high-voltage inter-lock of the present disclosure achieves the following advantageous effect: The high-voltage connector for jogging control over high-voltage inter-lock of the present disclosure is provided with a jogging control structure, which can realize jogging control over high-voltage inter-lock, such that a high-voltage inter-lock system can be switched on and switched off within an extremely short