New energy automobile waterproof connector and connection method thereof

Abstract

The invention relates to the technical field of connectors, in particular to a new energy automobile waterproof connector and a connecting method thereof.The new energy automobile waterproof connector comprises two sets of driving frames which are installed on a connecting seat, inclined planes are formed on the driving frames, and the inclined planes are matched with connecting shafts arranged on connectors and can drive the connectors to move towards the connecting seat; the fixing plate is connected with the connecting base, symmetrical guide grooves are formed in the fixing plate, coaxial wheel sets are installed in the guide grooves, and the coaxial wheel sets are matched with the driving frames and can drive the two sets of driving frames to move relatively; the traction structure is connected with the coaxial wheel set, the traction assembly is matched with the guide groove, and the coaxial wheel set can be in a locked state or a state of moving close to each other; and the triggering structure is arranged on the connecting base in a sliding mode and matched with a thrust piece installed on the connector, and when the connector is inserted into the connecting base, the triggering structure can drive the two coaxial wheel sets to be switched from the locked state to the state that the two coaxial wheel sets get close to each other, so that the connecting stability is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and in particular to a waterproof connector for a new energy vehicle and a connection method thereof. Background Art

[0002] With the transformation of energy forms, electric energy has become the mainstay of vehicle driving energy. Compared with traditional fossil energy driving methods, electric energy can effectively reduce vehicle noise during driving and improve the driving experience.

[0003] In vehicles that use electric energy as a driving energy source, the number of internal wiring harnesses has greatly increased, and there are many high-voltage wiring harnesses. In order to facilitate the assembly of these high-voltage wiring harnesses, they are mostly connected through connectors. However, precisely because these wiring harnesses carry high voltage electricity, the requirements for the connection tightness, waterproofness and dustproofness of the connectors connecting the wiring harnesses are becoming increasingly higher.

[0004] For traditional wiring harness connectors, most of them use a snap-on method to connect the male end and the female end, and use a sealing ring to achieve good connection performance and waterproof and dustproof performance. However, for the snap-on connection method, there will inevitably be a certain connection gap, which will cause the male end and the female end on the connector to move relative to each other when the external force pulls the wiring harness. The gap is generated and cannot be automatically restored, which leads to a decrease in the connection stability between the male end and the female end. At the same time, the gap between the male end and the female end also causes the sealing effect of the sealing ring to decrease. If the above-mentioned wiring harness connector is directly applied to a vehicle that uses electric energy as a driving source, there is a certain risk of short circuit fire and vehicle power failure. Summary of the invention

[0005] The object of the present invention is to provide a new energy vehicle waterproof connector and a connection method thereof to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A waterproof connector for a new energy vehicle, comprising a connector head and a connector seat adapted to each other, and also comprising: A driving frame, which is provided with two groups and is installed on the connecting seat, wherein an inclined surface is formed on the driving frame, and the inclined surface cooperates with a connecting shaft provided on the connecting head to drive the connecting head to move toward the connecting seat; A fixing plate connected to the connecting seat, wherein a symmetrical guide groove is formed on the fixing plate, wherein a coaxial wheel set is installed in the guide groove, and the coaxial wheel set cooperates with the driving frame to drive the two sets of the driving frames to move relative to each other; A traction structure connected to the coaxial wheel set, wherein the traction assembly cooperates with the guide groove to enable the coaxial wheel set to be locked or move toward each other; A trigger structure is slidably arranged on the connecting seat and adapted to the thrust piece installed on the connecting head. When the connecting head is inserted into the connecting seat, the trigger structure can drive the two sets of coaxial wheel sets to switch from a locked state to a state of moving towards each other.

[0007] As a further solution of the present invention: a second retardation groove is formed at one end of the driving frame away from the inclined surface, and the coaxial wheel set is rollingly connected to the second retardation groove; The driving frame is also provided with a stop surface connected to the inclined surface.

[0008] As a further solution of the present invention: the coaxial wheel set includes a second groove wheel rollingly matched with the guide groove, a first groove wheel rollingly matched with the traction structure, and an abutment shaft penetrating the second hysteresis groove and adapted to the trigger structure; The first sheave, the second sheave and the abutment shaft are coaxially arranged.

[0009] As a further solution of the present invention: the guide groove includes an inclined groove symmetrically arranged on the fixing plate, and one end of the inclined groove is provided with a locking groove connected thereto.

[0010] As a further solution of the present invention: the traction structure includes a guide groove arranged on the side of the fixed plate, a pulling plate is slidably installed in the guide groove, and the pulling plate is provided with a first retardation groove along its length direction, and the first groove wheel can roll in the first retardation groove; The traction structure further includes a first spring connecting the connection seat and the pulling plate.

[0011] As a further solution of the present invention: the trigger structure comprises an abutment rod slidably mounted on the connecting seat and adapted to the thrust member, and a trigger member adapted to the abutment shaft is provided at one end of the abutment rod; Two groups of first inclined portions are symmetrically arranged on the trigger member, and the first inclined portions are parallel to the inclined grooves.

[0012] As a further solution of the present invention: it also includes: The sealing structure is slidably connected to the connecting seat, and the sealing structure is elastically connected to the pulling plate.

[0013] As a further solution of the present invention: the sealing structure includes a follower frame slidably arranged on the connecting seat, a first sealing ring is arranged on a side of the follower frame facing the connecting head, and a second sealing ring is arranged on an outer side of the follower frame.

[0014] As a further solution of the present invention: a connecting plate is connected to the follower frame, and the connecting plate is connected to the pulling plate via a second spring.

[0015] A connection method, applied to the new energy vehicle waterproof connector, comprises the following steps: Step 1: Align the connector with the connector base and insert it. During the insertion process, the connector will first abut against the sealing structure, and then the thrust piece will abut against the trigger structure; Step 2: When the thrust member abuts against the trigger structure, the trigger structure can drive the coaxial wheel set to move, thereby releasing the locked state of the coaxial wheel set and pulling the two sets of driving frames to move closer to each other; Step 3: When the two sets of driving frames move toward each other, the inclined surface can abut against the connecting shaft, so that under the action of the traction structure, the connecting shaft has a tendency to drive the connecting head to move further toward the inside of the connecting seat and complete the connection.

[0016] Compared with the prior art, the present invention has the following beneficial effects: When the connecting shaft is between the two sets of driving frames, firstly, under the cooperation of the connecting shaft and the inclined surface, the connecting head has a tendency to move further toward the connecting seat, so that the plugging between the connecting head and the connecting seat is tighter, and when an external force acts on the connecting head or the connecting seat to make the two move in the opposite direction, the cooperation of the connecting shaft and the inclined surface can also play a certain reverse traction and buffering effect, and when the external force is removed, the connecting head is driven to continue to move toward the inside of the connecting seat, thereby improving the tightness of the connection between the connecting head and the connecting seat; Secondly, the cooperation between the connecting shaft and the stop surface can prevent the connector and the connector from slipping due to excessive external force, ensuring the stability of the two during the transmission of power and signals, ensuring the stability of the operation of new energy vehicles, and avoiding short circuit fires and vehicle power failures. At the same time, when the connector is connected to the connector seat, the first sealing ring can maintain an abutment state with the end of the connector, thereby providing stable waterproof and dustproof performance for the electrical connection between the connector and the connector seat, and when the connector or the connector seat is driven by external force to move away from each other, the second spring can keep the first sealing ring in a stable fit with the connector, so that the first sealing ring can fit with the connector under various working conditions, thereby ensuring the waterproof and dustproof effect, and when the first sealing ring fails, the first sealing ring can also abut against the end of the connector, and can maintain a certain degree of waterproof and dustproof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of an embodiment of a waterproof connector for new energy vehicles.

[0018] Figure 2 This is a schematic diagram of the split structure of the connector and the connector base in one embodiment of a waterproof connector for new energy vehicles.

[0019] Figure 3 This is a structural schematic diagram of a connector in an embodiment of a waterproof connector for new energy vehicles.

[0020] Figure 4 This is a structural schematic diagram of a connecting seat in an embodiment of a waterproof connector for new energy vehicles.

[0021] Figure 5 This is a structural schematic diagram of a drive frame, a fixing plate, a coaxial wheel set, a traction structure, and a trigger structure in an embodiment of a waterproof connector for new energy vehicles.

[0022] Figure 6 for Figure 5 Schematic diagram of the structure from another angle.

[0023] Figure 7 This is a structural explosion diagram of the drive frame, fixed plate, coaxial wheel set, traction structure, and trigger structure in one embodiment of a waterproof connector for new energy vehicles.

[0024] Figure 8 This is a structural schematic diagram of the sealing structure in an embodiment of a waterproof connector for new energy vehicles.

[0025] Fig. 9 This is a structural schematic diagram of a drive frame, a fixed plate, a coaxial wheel set, and a traction structure in an initial state in an embodiment of a waterproof connector for new energy vehicles.

[0026] Fig.10 This is a structural schematic diagram of a drive frame, a fixing plate, a coaxial wheel set, and a trigger structure in an embodiment of a waterproof connector for new energy vehicles.

[0027] Fig.11 This is a structural schematic diagram of a fixing plate and a trigger member in an embodiment of a waterproof connector for new energy vehicles.

[0028] In the figure: 1, connector; 101, connecting shaft; 102, thrust member; 2, outer shell; 201, slide groove; 3, connecting seat; 4, annular chamber; 5, guide member; 6, limit groove; 601, guide surface; 7, fixing plate; 701, guide groove; 702, inclined groove; 703, locking groove; 8, pulling plate; 801, first retardation groove; 9, first spring; 10, first groove wheel; 11, second groove wheel; 12, abutment shaft; 13, driving frame; 1301, second retardation groove; 1302, inclined surface; 1303, stop surface; 14, trigger member; 1401, first inclined portion; 1402, second inclined portion; 15, abutment rod; 16, second spring; 17, connecting plate; 18, follower frame; 19, first sealing ring; 20, second sealing ring; 21, traction rod. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0031] In an embodiment of the present invention, a waterproof connector for new energy vehicles includes a connector 1 and a connector seat 3 adapted to each other, a drive frame 13, a fixing plate 7, a coaxial wheel set, a traction structure, and a trigger structure, which are specifically as follows: See also Figure 1 to Figure 11 The driving frame 13 is provided with two groups and is installed on the connecting seat 3. Specifically, the connecting seat 3 is provided with a slide groove 201, the driving frame 13 is slidably arranged in the slide groove 201, and the driving frame 13 is connected with a traction rod 21. An inclined surface 1302 is formed on the driving frame 13, and the inclined surface 1302 cooperates with the connecting shaft 101 provided on the connecting head 1, so as to drive the connecting head 1 to move toward the connecting seat 3; Furthermore, a second hysteresis groove 1301 is formed at one end of the driving frame 13 away from the inclined surface 1302, and the coaxial wheel set is rollingly connected to the second hysteresis groove 1301; The driving frame 13 is also provided with a stop surface 1303 connected to the inclined surface 1302, wherein the length direction of the stop surface 1303 is perpendicular to the direction of relative movement between the connecting head 1 and the connecting seat 3, so that when the stop surface 1303 abuts against the connecting shaft 101, the stop surface 1303 will not be subjected to force along its length direction to cause the driving frame 13 to move in the opposite direction, thereby ensuring the stopping effect of the stop surface 1303 on the connecting shaft 101.

[0032] In the initial state, under the action of the fixing plate 7 and the traction structure, the two groups of driving frames 13 are in a locked state. At this time, the minimum distance between the two groups of driving frames 13 is greater than the distance between the two groups of connecting shafts 101, so that when the connector 1 moves toward the connecting seat 3 and is plugged in, the two groups of connecting shafts 101 can enter between the two groups of driving frames 13, and when the connector 1 and the connecting seat 3 are completely plugged in, the connector 1 can drive the trigger structure to operate, so that the driving frames 13 are switched from the locked state to the moving state of approaching each other, and at this time, the inclined surface 1302 on the driving frame 13 can abut against the connecting shaft 101, and at the same time Under the action of the traction structure, the driving frame 13 has a force on the connecting shaft 101, and under the action of this force, the connecting head 1 can have a tendency to move further toward the connecting seat 3 under the cooperation of the connecting shaft 101 and the inclined surface 1302, so that the insertion between the connecting head 1 and the connecting seat 3 is tighter, and when an external force acts on the connecting head 1 or the connecting seat 3 and causes the two to move in reverse, the cooperation between the connecting shaft 101 and the inclined surface 1302 can also play a certain reverse traction and buffering effect, and when the external force is removed, drive the connecting head 1 to continue to move toward the inside of the connecting seat 3.

[0033] Furthermore, the connection shaft 101 cooperates with the inclined surface 1302, and has a tendency to drive the connector 1 to move toward the connecting seat 3. However, when an external force acts on the connector 1 or the connecting seat 3 and causes the connector 1 and the connecting seat 3 to move in opposite directions, the cooperation between the connection shaft 101 and the inclined surface 1302 can only play a buffering and slowing effect. At this time, the connection shaft 101 will move along the inclined surface 1302 toward the stop surface 1303, and when the connection shaft 101 abuts against the stop surface 1303, the stop surface 1303 prevents the connection shaft 101 from continuing to move, thereby ensuring the connection stability between the connector 1 and the connecting seat 3, avoiding excessive external force from causing slippage between the connector 1 and the connecting seat 3, ensuring the stability of the two in the process of transmitting power, signals, etc., and ensuring the stability of the operation of new energy vehicles.

[0034] It should be noted that a guide member 5 is formed on the outer wall of the connecting seat 3, a limiting groove 6 is formed on the inner wall of the connecting head 1, and a symmetrical guide surface 601 is provided at the open end of the limiting groove 6, so that in the process of plugging the connecting head 1 and the connecting seat 3, the guide member 5 can be guided by the guide surface 601 to enter the limiting groove 6 and align the pins on the connecting head 1 with the needle grooves of the connecting seat 3, and then the pins on the connecting head 1 will enter the needle grooves of the connecting seat 3, thereby assisting the plugging of the connecting head 1 and the connecting seat 3, having a certain "fool-proof" effect, reducing the difficulty of plugging the two together, and on the other hand, having the effect of protecting the pins.

[0035] See also Figure 5~Figure 7 , Figure 9~Figure 11The fixing plate 7 is connected to the connecting seat 3, and a symmetrical guide groove is formed on the fixing plate 7. A coaxial wheel set is installed in the guide groove. The coaxial wheel set cooperates with the driving frame 13 to drive the two sets of the driving frames 13 to move relative to each other; The guide groove includes an inclined groove 702 symmetrically arranged on the fixing plate 7, one end of the inclined groove 702 is provided with a locking groove 703 connected thereto, and the length direction of the locking groove 703 is parallel to the traction reverse direction of the traction structure pulling the coaxial wheel set; The coaxial wheel set includes a second groove wheel 11 rollingly matched with the guide groove, a first groove wheel 10 rollingly matched with the traction structure, and an abutment shaft 12 penetrating the second hysteresis groove 1301 and adapted to the trigger structure; The first sheave 10 , the second sheave 11 and the abutting shaft 12 are coaxially arranged.

[0036] In the initial state (the state in which the connector 1 and the connector seat 3 are about to be connected but are not connected), the second sheave 11 is at the end of the locking groove 703 away from the inclined groove 702. At this time, due to the pulling of the traction structure on the first sheave 10, the second sheave 11 is subjected to a force away from the inclined groove 702. That is, in this state, the second sheave 11 has good stability to ensure that the distance between the two sets of drive frames 13 is greater than the distance between the two sets of connecting shafts 101, thereby preventing the connecting shafts 101 from interfering with the drive frames 13 when following the movement of the connector 1.

[0037] When the connector 1 is inserted into the connecting seat 3 and the connecting shaft 101 is located between the two groups of driving frames 13, the connector 1 will also drive the trigger structure to operate, and the trigger structure can drive the abutment shaft 12 to move along the length direction of the locking groove 703. At this time, the second groove wheel 11 will also move synchronously. After the second groove wheel 11 moves to the end of the locking groove 703, the second groove wheel 11 can move along the inclined groove 702, and with the cooperation of the abutment shaft 12 and the second retardation groove 1301, the two groups of driving frames 13 can move close to each other, and then when the inclined surface 1302 abuts against the connecting shaft 101, the connecting shaft 101 has a force to drive the connector 1 to move toward the inside of the connecting seat 3 to ensure the tightness of the connection between the two.

[0038] The traction structure is connected to the coaxial wheel set, and the traction assembly cooperates with the guide groove to enable the coaxial wheel set to be locked or move closer to each other; The traction structure includes a guide groove 701 arranged at the side of the fixing plate 7, a pulling plate 8 is slidably installed in the guide groove 701, and the pulling plate 8 is provided with a first retardation groove 801 along its length direction, and the first groove wheel 10 can roll in the first retardation groove 801, wherein the first retardation groove 801 is perpendicular to the second retardation groove 1301 and the locking groove 703; The traction structure further includes a first spring 9 connecting the connection seat 3 and the pulling plate 8 .

[0039] In the initial state, the first spring 9 is in a stretched state and has a traction force on the pulling plate 8, so that the first groove wheel 10 in the first retardation groove 801 has a force to drive the second groove wheel 11 in the locking groove 703 to move away from the inclined groove 702, so that in this state, the first groove wheel 10, the second groove wheel 11 and the abutment shaft 12 have a stable locking state, thereby improving the stability in this state.

[0040] When the trigger structure is in action, it can drive the corresponding abutment shaft 12 to move, and make the second groove wheel 11 move along the length direction of the locking groove 703. During this process, the first spring 9 is further stretched. When the second groove wheel 11 moves into the inclined groove 702, the first spring 9 releases its elastic potential energy and pulls the first groove wheel 10 to move through the pulling plate 8, so that the second groove wheel 11 can move along the inclined groove 702. At the same time, with the cooperation of the abutment shaft 12 and the second hysteresis groove 1301, the two groups of drive frames 13 can move close to each other, so that the inclined surface 1302 is used to act on the connecting shaft 101, so that the connecting head 1 has a force to keep moving toward the connecting seat 3.

[0041] See also Figure 6~Figure 7 , Figure 10~Figure 11 The trigger structure is slidably arranged on the connecting seat 3 and is adapted to the thrust piece 102 installed on the connecting head 1. When the connecting head 1 is inserted into the connecting seat 3, the trigger structure can drive the two sets of coaxial wheel sets to switch from a locked state to a state of moving close to each other; The trigger structure includes an abutment rod 15 slidably mounted on the connection seat 3 and adapted to the thrust member 102, and a trigger member 14 adapted to the abutment shaft 12 is provided at one end of the abutment rod 15; The trigger member 14 is symmetrically provided with two sets of first inclined portions 1401 and second inclined portions 1402 , and the first inclined portions 1401 are parallel to the inclined grooves 702 .

[0042] In the initial state, the trigger member 14 is in a state of being separated from the abutment shaft 12 (it may also be in an abutment state), and when the connecting head 1 moves toward the connecting seat 3, when the thrust member 102 abuts against the abutment rod 15, the trigger member 14 can be driven to move. When the trigger member 14 abuts against the abutment shaft 12, the first inclined portion 1401 can abut against the abutment shaft 12 and make the abutment shaft 12 move along the length direction of the locking groove 703. After the second groove wheel 11 moves to the end of the locking groove 703, since the first inclined portion 1401 is parallel to the inclined groove 702, the abutment shaft 12 can drive the second groove wheel 11 to enter the inclined groove 702 under the guidance of the first inclined portion 1401, so that the second groove wheel 11 can move along the inclined groove 702.

[0043] Based on the above arrangement, in the initial state, the two groups of drive frames 13 can be in a state of being far apart, and when the connecting shaft 101 follows the movement of the connector 1, no additional resistance will be generated in the movement of the connector 1, thereby reducing the difficulty of inserting the connector 1 into the connecting seat 3. When the connector 1 and the connecting seat 3 move relative to each other to a predetermined position, the drive frames 13 can be triggered to move closer to each other, so that the drive frames 13 can abut against the connecting shaft 101, and the connector 1 can be pushed toward the inside of the connecting seat 3, thereby ensuring the connection stability of the two parts.

[0044] It should also be noted that when the connecting head 1 is separated from the connecting seat 3, pulling the traction rods 21 on both sides of the connecting seat 3 can make the two groups of drive frames 13 move in the opposite direction. At this time, the second groove wheel 11 will also move in the opposite direction along the inclined groove 702, and when the abutment shaft 12 follows the second groove wheel 11 to abut with the second inclined portion 1402 and the first inclined portion 1401, the trigger member 14 can move in the opposite direction, and through the cooperation of the abutment rod 15 and the thrust member 102, the connecting head 1 can move away from the connecting seat 3, and after the second groove wheel 11 moves to the end of the locking groove 703, the first spring 9 can release the elastic potential energy, so that the second groove wheel 11 is locked, and the distance between the two groups of drive frames 13 is locked. In this state, it is only necessary to pull the connecting head 1 and the connecting seat 3 to move in the opposite direction, which reduces the difficulty of separating the connecting head 1 and the connecting seat 3.

[0045] See also Figure 4 , Figure 8 , a waterproof connector for new energy vehicles, further comprising: a sealing structure, the sealing structure is slidably connected to the connecting seat 3, and the sealing structure is elastically connected to the pulling plate 8; It should be supplemented that an outer shell 2 is provided on the outside of the connecting seat 3, and an annular chamber 4 is formed between the outer shell 2 and the connecting seat 3. The connecting head 1 can be plugged into the connecting seat 3 when inserted into the annular chamber 4, and after the two are plugged in, not only can a waterproof effect be achieved through a sealing structure, but also the outer wall of the connecting head 1 and the connecting seat 3 and the inner wall of the outer shell 2 can be tightly fitted to assist in waterproofing, thereby improving the comprehensive waterproof effect when the connecting head 1 and the connecting seat 3 are plugged in.

[0046] The sealing structure includes a follower frame 18 slidably disposed on the connecting seat 3, a first sealing ring 19 is disposed on the side of the follower frame 18 facing the connecting head 1, and a second sealing ring 20 is disposed on the outer side of the follower frame 18, and the second sealing ring 20 is connected to the inside of the outer shell 2 to improve the sealing between the follower frame 18 and the outer shell 2; The follower frame 18 is connected to a connecting plate 17 , and the connecting plate 17 is connected to the pulling plate 8 via a second spring 16 .

[0047] In the initial state, the second spring 16 is in a stretched state, and when the connector 1 is inserted into the connecting seat 3 and the connecting shaft 101 has not entered between the two sets of drive frames 13, the end of the connector 1 has already abutted against the first sealing ring 19. At this time, the second spring 16 can be stretched in the process of the first sealing ring 19 following the movement of the connector 1, and when the thrust piece 102 abuts against the abutment rod 15, the pulling plate 8 can move along the movement direction of the connector 1, and the stretching degree of the second spring 16 is buffered to a certain extent, so as to avoid the second spring 16 being stretched too much due to the movement of the first sealing ring 19, resulting in an increase in the resistance to pushing the connector 1 toward the inside of the connecting seat 3.

[0048] When the two groups of drive frames 13 move toward each other, the pulling plate 8 can move in the opposite direction. At this time, the second spring 16 can be further stretched to increase the contact force between the first sealing ring 19 and the connector 1, and improve the sealing effect between the two, thereby preventing external water stains, dust, etc. from entering the area where the connector 1 is electrically connected to the connector seat 3, causing short circuits and high temperatures.

[0049] Furthermore, when an external force acts on the connector 1 or the connector seat 3 so that the connector 1 and the connector seat 3 have a tendency to move in the opposite direction, since the second spring 16 is always in a stretched state, the first sealing ring 19 can have a tendency to follow the movement of the connector 1, that is, the first sealing ring 19 can always maintain a fit with the connector 1, thereby providing stable waterproof and dustproof performance for the electrical connection between the connector 1 and the connector seat 3 under various working conditions.

[0050] Through the above arrangement, when the connector 1 is connected to the connector seat 3, the first sealing ring 19 can maintain an abutting state with the end of the connector 1, thereby providing stable waterproof and dustproof performance for the electrical connection between the connector 1 and the connector seat 3, and when the connector 1 or the connector seat 3 is driven by an external force to move away from each other, the second spring 16 can keep the first sealing ring 19 in a stable fit with the connector 1, so that under various working conditions, the first sealing ring 19 can fit with the connector 1, thereby ensuring the waterproof and dustproof effect, and when the first sealing ring 19 fails (when the rubber loses its elasticity), the first sealing ring 19 can still abut against the end of the connector 1, and can maintain a certain degree of waterproof and dustproof effect.

[0051] It should be supplemented that, in the prior art, when the connector 1 is plugged into the connector seat 3, the connector 1 can abut against the sealing ring, but when an external force acts on the connector 1 or the connector seat 3, the connector 1 tends to separate from the sealing ring, so that a gap exists between the connector 1 and the sealing ring, thereby reducing the waterproof and dustproof effects.

[0052] As an embodiment of the present invention, a connection method is also proposed, which is applied to the new energy vehicle waterproof connector, comprising the following steps: Step 1: Align the connector 1 with the connector seat 3 and insert it. During the insertion process, the connector 1 will first abut against the sealing structure, and then the thrust piece 102 will abut against the trigger structure; Step 2: When the thrust member 102 abuts against the trigger structure, the trigger structure can drive the coaxial wheel set to move, thereby releasing the locked state of the coaxial wheel set and pulling the two sets of driving frames 13 to move closer to each other; Step 3: When the two sets of driving frames 13 move toward each other, the inclined surface 1302 can abut against the connecting shaft 101, so that under the action of the traction structure, the connecting shaft 101 has a tendency to drive the connecting head 1 to move further toward the inside of the connecting seat 3 and complete the connection.

[0053] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0054] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A waterproof connector for a new energy vehicle, comprising a connector (1) and a connector seat (3) adapted to each other, characterized in that: Also includes: A drive frame (13) having two groups and mounted on the connecting seat (3); an inclined surface (1302) is formed on the drive frame (13); the inclined surface (1302) cooperates with a connecting shaft (101) provided on the connecting head (1) to drive the connecting head (1) to move toward the connecting seat (3); A fixing plate (7) connected to the connecting seat (3), the fixing plate (7) being formed with symmetrical guide grooves, a coaxial wheel set being installed in the guide groove, the coaxial wheel set cooperating with the driving frame (13) to drive the two sets of driving frames (13) to move relative to each other; A traction structure connected to the coaxial wheel set, wherein the traction assembly cooperates with the guide groove to enable the coaxial wheel set to be locked or move toward each other; A trigger structure is slidably arranged on the connecting seat (3) and is adapted to a thrust piece (102) mounted on the connecting head (1); the trigger structure can drive the two sets of coaxial wheel sets to switch from a locked state to a state of moving toward each other when the connecting head (1) is inserted into the connecting seat (3).

2. A new energy vehicle waterproof connector according to claim 1, characterized in that: A second hysteresis groove (1301) is formed at one end of the driving frame (13) away from the inclined surface (1302), and the coaxial wheel set is rollingly connected to the second hysteresis groove (1301); The driving frame (13) is also provided with a stop surface (1303) connected to the inclined surface (1302).

3. A new energy vehicle waterproof connector according to claim 2, characterized in that: The coaxial wheel set comprises a second groove wheel (11) rollingly engaged with the guide groove, a first groove wheel (10) rollingly engaged with the traction structure, and an abutment shaft (12) penetrating the second hysteresis groove (1301) and adapted to the trigger structure; The first groove wheel (10), the second groove wheel (11) and the abutment shaft (12) are coaxially arranged.

4. A new energy vehicle waterproof connector according to claim 3, characterized in that: The guide groove comprises an inclined groove (702) symmetrically arranged on the fixing plate (7), and one end of the inclined groove (702) is provided with a locking groove (703) in communication therewith.

5. A new energy vehicle waterproof connector according to claim 3, characterized in that: The traction structure comprises a guide groove (701) arranged on the side of the fixing plate (7), a pulling plate (8) is slidably mounted in the guide groove (701), the pulling plate (8) is provided with a first retardation groove (801) along its length direction, and the first groove wheel (10) is capable of rolling in the first retardation groove (801); The traction structure also includes a first spring (9) connecting the connection seat (3) and the pulling plate (8).

6. A new energy vehicle waterproof connector according to claim 4, characterized in that: The trigger structure comprises an abutment rod (15) slidably mounted on the connection seat (3) and adapted to the thrust member (102); a trigger member (14) adapted to the abutment shaft (12) is provided at one end of the abutment rod (15); Two groups of first inclined portions (1401) are symmetrically arranged on the trigger member (14), and the first inclined portions (1401) are parallel to the inclined groove (702).

7. A new energy vehicle waterproof connector according to claim 5, characterized in that: Also includes: A sealing structure is slidably connected to the connection seat (3), and the sealing structure is elastically connected to the pulling plate (8).

8. A new energy vehicle waterproof connector according to claim 7, characterized in that: The sealing structure comprises a follower frame (18) slidably arranged on the connecting seat (3), a first sealing ring (19) being arranged on a side of the follower frame (18) facing the connecting head (1), and a second sealing ring (20) being arranged on the outer side of the follower frame (18).

9. A new energy vehicle waterproof connector according to claim 8, characterized in that: A connecting plate (17) is connected to the follower frame (18), and the connecting plate (17) is connected to the pulling plate (8) via a second spring (16).

10. A connection method, characterized in that: The waterproof connector for new energy vehicles according to any one of claims 1 to 9 comprises the following steps: Step 1: Align the connector (1) with the connector seat (3) and insert the connector. During the insertion process, the connector (1) will first abut against the sealing structure, and then the thrust piece (102) will abut against the trigger structure. Step 2: When the thrust member (102) abuts against the trigger structure, the trigger structure can drive the coaxial wheel set to move, thereby releasing the locked state of the coaxial wheel set and pulling the two sets of drive frames (13) to move towards each other; Step three: When the two sets of drive frames (13) move toward each other, the inclined surface (1302) can abut against the connecting shaft (101), so that under the action of the traction structure, the connecting shaft (101) has a tendency to drive the connecting head (1) to move further toward the inside of the connecting seat (3), thereby completing the connection.

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