Flexible connection structure of connector and vehicle

Abstract

The present invention relates to a flexible connection structure of a connector and a vehicle, which relates to the technical field of automobile manufacturing. The connector includes a connector body, an insertion terminal, a transition terminal, a flexible conductor, and a transmission conductor, and the insertion terminal is provided in the connector body, and one end of the transition terminal is connected to the insertion terminal and the other end of the flexible conductor is connected to one end of the flexible conductor, and the other end of the flexible conductor is connected to the transmission conductor. The connector with the flexible connection transition can solve the problem of rigidly fixing the terminal and the transmission conductor, and when a charging gun is inserted into the connector, the insertion terminal can have a certain amount of wobble according to the direction of the insertion force of the charging gun at the moment the charging gun is inserted, thereby releasing the impact on the insertion terminal caused by the insertion force. In particular, when the angle between the insertion direction of the charging gun and the insertion terminal is too large, the impact force can be better reduced, and the risk of uneven wear of the terminal is greatly reduced, thereby improving the safety of high voltage charging.

Description

[Technical field]

[0001] This application claims priority to a Chinese patent application filed on March 14, 2022, bearing application number 202210248399.X and entitled "Flexible Connection Structure of Connector and Vehicle," the entire contents of which are hereby incorporated by reference in their entirety.

[0002] The present invention relates to the technical field of automobile manufacturing, and more particularly to a flexible connection structure of a connector and a vehicle. [Background technology]

[0003] With the development of society and the improvement of economic level, people's awareness of environmental protection is gradually increasing, and the demand for low-carbon life and low-carbon economy is also getting stronger. Electric vehicles are being used more and more. Electric vehicles are provided with a connector and are charged by matching it with a charging gun. The connector in the charging system includes a device fixed to the vehicle body, a cable, and a terminal, and the connector is fixed to the vehicle and the charging terminal is connected to the cable. In the process of properly designing a connector, the terminal and the transmission conductor are usually rigidly connected, and the terminal is unevenly worn during insertion and removal of the charging gun, so that the plating layer of the terminal is scraped off and the terminal body is exposed. This increases the resistance, reduces the charging efficiency, and is prone to cause the temperature rise at the connection point of the terminal, which affects the safety of high-voltage charging. Therefore, in the prior art, a new solution to solve the above problems is urgently required. Summary of the Invention

[0004] The present invention aims to solve the problem of rigid fixation between the terminal and the transmission conductor, significantly reduce the risk of uneven wear of the terminal, and improve the safety of high voltage charging.

[0005] The present invention provides a flexible connection structure of a connector, the flexible connection structure of the connector including a connector body, a flexible conductor, and a transmission conductor, an insertion terminal is provided within the connector body, an end of the insertion terminal is provided with a first connection member, and an end of the transmission conductor is provided with a second connection member, The flexible conductor has one end electrically connected to the first connection member and the other end electrically connected to the second connection member.

[0006] When the second connection member vibrates, the flexible conductor is deformed, thereby cushioning the vibration of the second connection member.

[0007] The flexible conductor is configured such that radial displacement occurs along the longitudinal direction of the flexible conductor from one end connected to the second connection member over at least a portion of the flexible conductor that accounts for 2% of the length of the flexible conductor.

[0008] The flexible conductor is free from radial displacement in a portion that accounts for at least 1% of the length of the flexible conductor along the longitudinal direction of the flexible conductor from the one end connected to the first connection member.

[0009] The insertion terminal and the first connection member are integrally formed.

[0010] The insertion terminal and the first connection member are separate structures, and the insertion terminal and the first connection member are fixed to each other by welding or crimping.

[0011] The insertion terminal and the first connection member are separate structures, and the insertion terminal and the first connection member are detachably connected to each other by engagement, screwing, or crimping.

[0012] The transmission conductor and the second connection member are of an integral structure.

[0013] The transmission conductor and the second connection member are fixed to each other by welding or crimping.

[0014] The transmission conductor and the second connection member are detachably connected by engagement, screwing, or crimping.

[0015] The flexible conductor is a braided flat ribbon.

[0016] The flexible conductor is a flexible flat ribbon made by stacking multiple layers of thin plates.

[0017] The flexible conductor has a twisted portion, and the angle between two adjacent planes connected by the twisted portion is 0° to 90°.

[0018] The flexible conductor is formed by winding or twisting a plurality of core wires.

[0019] The flexible conductor is a spiral conductor.

[0020] The flexible conductor has a cross-sectional area different from that of the first connection member or the second connection member.

[0021] The flexible conductor has a cross-sectional shape different from that of the first connection member or the second connection member.

[0022] The flexible conductor and the first connection member are connected by welding or crimping.

[0023] The flexible conductor and the first connection member are detachably connected by engagement, screwing, or crimping.

[0024] The end of the first connecting member is a first flat portion, the first flat portion having a first through hole, the flexible conductor has a second through hole, and the first through hole and the second through hole are connected by a bolt or a rivet.

[0025] The first flat portion includes two parallel portions each having a first through hole, and the second through hole is located between the two first through holes.

[0026] The flexible conductor and the second connection member are detachably connected by engagement, screwing, or crimping.

[0027] The end of the second connecting member is a second flat portion, the second flat portion has a third through hole, the flexible conductor has a fourth through hole, and the third through hole and the fourth through hole are connected by a bolt or a rivet.

[0028] The second flat portion includes two parallel portions each having a third through hole, and the fourth through hole is located between the two third through holes.

[0029] The material of the insertion terminals includes copper.

[0030] The material of the transmission conductor and / or the flexible conductor includes aluminum.

[0031] The connector body is a charging inlet.

[0032] The present invention further provides a vehicle, including the flexible connection structure of a connector as described above, wherein the connector body is detachably provided on the vehicle.

[0033] The beneficial effects of the present invention are that the connector with flexible connection transition can solve the problem of rigid fixation between the terminal and the transmission conductor, and when the charging gun is inserted into the connector body, the insertion terminal can have a certain amount of wobble according to the direction of the insertion force of the charging gun at the moment the charging gun is inserted, thereby releasing the impact on the insertion terminal caused by the insertion force. In particular, when the angle between the insertion direction of the charging gun and the insertion terminal is too large, the impact force can be better reduced, and the risk of uneven wear of the terminal is greatly reduced, thereby improving the safety of high voltage charging. The second connection member is easy to attach and detach, and when the connector body needs to be replaced, the second connection member and the transmission conductor can be separated.

[0034] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the invention, taken in conjunction with the accompanying drawings. [Brief description of the drawings]

[0035] The drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0036] [Figure 1] 1 is a structural schematic diagram of a flexible connection structure of a connector according to the present invention; [Diagram 2] 1 is a side view of a flexible connection structure of a connector according to the present invention; [Diagram 3] 1 is a structural schematic diagram of an aluminum flat ribbon of a flexible connection structure of a connector according to the present invention; FIG. [Figure 4] 1 is a schematic diagram showing the structure of a spiral conductor of a flexible connection structure of a connector according to the present invention; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0037] Various exemplary embodiments of the present invention will now be described in detail with reference to the drawings. It should be noted that unless specifically stated otherwise, the relative arrangement of the components and steps, the formulas and numerical values ​​described in these embodiments do not limit the scope of the present invention.

[0038] The following detailed description of at least one illustrative embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0039] Techniques, methods and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, said techniques, methods and equipment should be considered part of the specification.

[0040] In all examples shown and discussed herein, any specific values ​​should be construed as merely illustrative and not restrictive, and thus other instances of the example embodiment may have different values.

[0041] As shown in FIGS. 1 to 4, the present invention discloses a flexible connection structure of a connector.

[0042] The connector includes a connector body 1, a flexible conductor 4, and a transmission conductor 5, an insertion terminal 2 is provided within the connector body 1, a first connection member 3 is provided at an end of the insertion terminal 2, and a second connection member 6 is provided at an end of the transmission conductor 5, The flexible conductor 4 has one end electrically connected to the first connection member 3 and the other end electrically connected to the second connection member 6 .

[0043] In the conventional connector structure, the transmission conductor 5 is directly connected to the terminal in the connector body 1. The entire connection structure rigidly fixes the connector and the terminal, which causes uneven wear of the terminal during insertion and removal of the charging gun. The uneven wear phenomenon refers to the phenomenon in which the plating layer is damaged and the terminal body is exposed due to repeated friction caused by uneven bearing forces from each direction at the insertion point between the terminal and the mating insertion end. After the terminal body is exposed, the resistance increases, the current decreases, and the amount of heat increases, which affects the safety and charging efficiency of high voltage charging over a long period of time. The flexible conductor 4 of the present invention is not only conductive, but also has flexibility, which allows the insertion terminal 2 in the connector body 1 to have a certain amount of movable space. When the charging gun is inserted into the connector body 1, the flexible conductor 4 causes the insertion terminal 2 to move slightly according to the direction of the force of inserting the charging gun, thereby avoiding an increase in friction strength caused by excessive bearing forces on a certain surface due to rigid contact. In addition, due to the flexibility of the flexible conductor 4, it is not suitable for a connection form that allows easy attachment and detachment by screwing or the like, and only a fixed connection method by welding or the like can be adopted, which makes it difficult to separate from the transmission conductor 5 and therefore difficult to replace. In this case, by providing a second connecting member 6 to connect the flexible conductor 4 and the transmission conductor 5, attachment and detachment can be made easier; in other words, when it is necessary to replace the connector body 1, the second connecting member 6 and the transmission conductor 5 can be separated.

[0044] Furthermore, when the second connection member 6 vibrates, the flexible conductor 4 deforms, thereby cushioning the vibration of the second connection member 6. When the transmission conductor 5 oscillates with the vehicle body while the vehicle is running, and if the oscillation continues for a long time, it drives the second connection member 6 to vibrate, and when the second connection member 6 vibrates, it drives the insertion terminals 2 to oscillate in a rigid connection, and if the oscillation continues for a long time, the connection structure between the insertion terminals 2 and the connector body 1 will be damaged. Therefore, by providing the flexible conductor 4, the vibration of the second connection member 6 can be prevented from being transmitted to the insertion terminals 2 by its own deformation, thereby protecting the insertion terminals 2.

[0045] In some embodiments, the flexible conductor 4 is configured such that radial displacement occurs along the length of the flexible conductor 4 from one end connected to the second connection member 6, at least in a portion that occupies 2% of the length of the flexible conductor 4. If the length of the flexible conductor 4 where the radial displacement occurs is too small, the buffering against vibration is insufficient, and the vibration of the second connection member 6 cannot be sufficiently buffered. In order to find a suitable ratio of the radial displacement generated by the flexible conductor 4 to the length of the flexible conductor 4, the inventors conducted related tests and selected the same second connection member 6 and different flexible conductors 4 as the test method to construct samples, and the flexible conductors 4 have different lengths where radial displacement occurs. The samples were subjected to a vibration test for one hour, and if the ratio of impedance increase exceeded 2%, it was deemed to be unsuccessful, indicating that fretting corrosion still exists, and the test was deemed to be unsuccessful. The results are shown in Table 1.

[0046] Table 1: Effect of radial displacement of flexible conductor 4 on impedance as a percentage of the length of the flexible conductor [Table 1]

[0047] As shown in Table 1, if the length over which the radial displacement of the flexible conductor 4 occurs is less than 2% of the length of the flexible conductor, the increase in impedance between the flexible conductor 4 and the second connecting member 6 after the vibration test will be greater than 2%. Therefore, the inventor would prefer that the radial displacement of the flexible conductor 4 occurs in at least a portion of the flexible conductor 4 that accounts for 2% of the length of the flexible conductor 4 along the longitudinal direction of the flexible conductor 4 from the one end connected to the second connecting member 6.

[0048] Therefore, the inventors have discovered through testing that if the vibrating part of the flexible conductor 4 is less than 2% of the total length of the flexible conductor 4, it is unable to effectively cushion the vibration of the second connecting member 6, and the force caused by the vibration is released concentratedly at the connection point between the flexible conductor 4 and the second connecting member 6, which over a long period of time can easily lead to the two becoming detached, resulting in a break in the connection. Therefore, the inventors have discovered that it is preferable for radial displacement to occur in a part that accounts for at least 2% of the length of the flexible conductor 4.

[0049] In some embodiments, the flexible conductor 4 does not undergo radial displacement along at least 1% of the length of the flexible conductor 4 from the one end connected to the first connection member 3 along the longitudinal direction of the flexible conductor 4.

[0050] If the portion of the flexible conductor 4 where radial displacement does not occur is too small, the vibration of the second connection member 6 will still be transmitted to the first connection member 3. In order to find the proportion of the length of the flexible conductor 4 where the suitable radial displacement of the flexible conductor 4 does not occur, the inventors conducted related tests, and as a test method, selected the same first connection member 3 and different flexible conductors 4 to construct samples, and the flexible conductors 4 have different lengths where radial displacement can occur. The samples were subjected to a vibration test for 1 hour, and if the ratio of impedance increase exceeded 2%, it was deemed to be unsuccessful, indicating that fretting corrosion still exists, and the results are shown in Table 2.

[0051] Table 2: Effect of the ratio of the length of the flexible conductor 4 where no radial displacement occurs to the length of the flexible conductor on the impedance [Table 2]

[0052] As shown in Table 2, when the proportion of the length of the flexible conductor 4 where radial displacement does not occur is less than 1% of the length of the flexible conductor, the increase in impedance between the flexible conductor 4 and the first connecting member 3 after the vibration test exceeds 2%, resulting in failure. Therefore, if the inventors were to use the flexible conductor 4, it would be preferable that the flexible conductor 4 does not undergo radial displacement in at least a portion that occupies 1% of the length of the flexible conductor 4 along the longitudinal direction of the flexible conductor 4 from the one end connected to the first connecting member 3.

[0053] In some embodiments, the insertion terminal 2 and the first connection member 3 have an integral structure. The integral structure reduces the number of parts, facilitates processing, and reduces costs by reducing the number of steps.

[0054] In some embodiments, the insertion terminal 2 and the first connection member 3 are separate structures, and the insertion terminal 2 and the first connection member 3 are fixed to each other by welding or crimping. The material of the insertion terminal 2 is generally copper or copper alloy, and the flexible conductor 4 may be aluminum. Copper or copper alloy has high conductivity and can be widely used in the field of electrical transmission. The flexible conductor 4 is connected to the insertion terminal 2 by welding, and the welding method used includes one or more of resistance welding, friction welding, ultrasonic welding, arc welding, laser welding, electron beam welding, pressure diffusion welding, and magnetic induction welding, and generates a fusion connection at the contact position between the insertion terminal 2 and the flexible conductor 4 by concentrating thermal energy or pressure, so that the connection by welding is stable, the connection of dissimilar materials can be realized, and the contact positions are fused to each other, resulting in a better conductive effect.

[0055] Resistance welding is a method of achieving welding by passing a strong electric current through the contact point between an electrode and a workpiece, generating heat from the contact resistance.

[0056] Friction welding is a method of welding workpieces by using heat generated by friction on the contact surfaces of the workpieces as a heat source to plastically deform the workpieces using pressure.

[0057] Ultrasonic welding is a method in which high-frequency vibration waves are transmitted between the surfaces of two objects to be welded, and the surfaces of the two objects are rubbed against each other under pressure to form a fusion bond between the molecular layers.

[0058] Arc welding is a method that uses an arc as a heat source and utilizes the physical phenomenon of air discharge to convert electrical energy into the thermal and mechanical energy required for welding to join metals. The main methods include shielded metal arc welding, submerged arc welding, and gas-shielded arc welding.

[0059] Laser welding is a highly efficient and precise welding method that uses a high-energy density laser beam as a heat source.

[0060] Friction welding is a method of welding workpieces by using heat generated by friction on the contact surfaces of the workpieces as a heat source to plastically deform the workpieces using pressure.

[0061] Electron beam welding is a method in which an accelerated and focused electron beam is collided with a welding surface placed in a vacuum or non-vacuum to melt the workpiece to be welded, thereby achieving welding.

[0062] Pressure welding is a method in which pressure is applied to the workpieces to be welded, bringing the joining surfaces into close contact and causing a certain amount of plastic deformation to complete the weld.

[0063] Magnetic induction welding is a method in which two workpieces to be welded collide instantaneously at high speed under the action of a strong pulsed magnetic field, and the atoms of the two materials meet within the interatomic distance under the action of a very high pressure wave on the surface of the materials, forming a stable metallic bond at the interface. It is a type of solid-state cold welding, and can weld conductive metals with similar or dissimilar properties.

[0064] Crimping is a production process in which the insertion terminal 2 and the first connection member 3 are assembled and then punched together using a crimping machine. Crimping is suitable for mass production, and the advantage of using an automatic crimping machine is that products of stable quality can be mass-produced quickly.

[0065] In some embodiments, the insertion terminal 2 and the first connection member 3 are separate structures, and the insertion terminal 2 and the first connection member 3 are detachably connected by engagement, screwing, or crimping. The engagement method refers to providing the insertion terminal 2 and the first connection member 3 with corresponding locking claws or locking grooves, respectively, and assembling and connecting them to each other by the locking grooves and locking claws. The advantage of the engagement method is that it allows quick connection and is detachable.

[0066] The screw connection is such that the plug-in terminal 2 and the first connection member 3 each have a screw structure and can be screwed together, or connected using a separate stud and nut. The advantage of the screw connection is that it is easy to attach and detach, and it can be repeatedly assembled and removed, making it suitable for situations where it is necessary to attach and detach it regularly.

[0067] The crimping method employs a rivet to crimp the insertion terminal 2 and the first connection member 3 together to form a single unit. The crimping method has the advantages of providing a strong connection, being simple to process, and being easy to operate.

[0068] In some embodiments, the transmission conductor 5 and the second connection member 6 are of an integral structure. The integral structure reduces the number of parts, facilitates installation, and reduces costs by reducing the number of processes.

[0069] In some embodiments, the transmission conductor 5 and the second connection member 6 are fixed together by welding or crimping.

[0070] In some embodiments, the flexible conductor 4 and the first connection member 3 are connected by welding or crimping.

[0071] The welding methods used include one or more of resistance welding, friction welding, ultrasonic welding, arc welding, laser welding, electron beam welding, pressure diffusion welding, and magnetic induction welding, which ensure stable connection between dissimilar materials and better electrical conductivity due to the contact points melting together. The specific welding methods are as mentioned above. Crimping has the advantage of being mass-productive, and the use of an automatic crimping machine allows for the rapid mass production of products with stable quality.

[0072] In some embodiments, the transmission conductor 5 and the second connection member 6 are detachably connected by locking, screwing, or crimping. The locking method refers to providing the transmission conductor 5 and the second connection member 6 with corresponding locking claws or locking grooves, respectively, and assembling and connecting them to each other by the locking grooves and locking claws. The locking method has the advantages of quick connection and detachability.

[0073] The screw connection is that the transmission conductor 5 and the second connection member 6 each have a screw structure and can be screwed together or connected using a separate stud and nut. The screw connection has the advantage of being detachable, allowing repeated assembly and disassembly, and is suitable for situations where it is necessary to always attach and detach.

[0074] The crimping method employs a rivet to crimp the transmission conductor 5 and the second connection member 6 together to form a single unit. The crimping method has the advantages of providing a strong connection, being simple to process, and being easy to operate.

[0075] In some embodiments, the flexible conductor 4 is a braided aluminum flat ribbon 41. As shown in Fig. 3, the braided aluminum flat ribbon 41 has flexibility, is easy to bend, and has excellent conductive performance.

[0076] In some embodiments, the flexible conductor 4 is a flexible flat ribbon made of multiple layers of laminated thin plates. A thin plate is soft and easily deformed, and is suitable for the flexible conductor 4. By laminating multiple layers of laminated thin plates, not only flexibility but also current efficiency can be ensured.

[0077] Furthermore, the flexible conductor 4 has a twisted portion, and the included angle between two adjacent planes connected by the twisted portion is 0° to 90°. In different connector bodies 1, the angles of the lead wires of the transmission conductors 5 are different, and the flexible conductor 4 can be provided to have a twisted portion, that is, both ends of the flexible conductor 4 form an angle due to the twisting by the twisted portion, and the angle may be any value as required to meet different assembly environments.

[0078] In some embodiments, the flexible conductor 4 is formed by winding or twisting a plurality of core wires. The plurality of core wires are flexible, easy to bend, and have excellent conductive performance. The flexible conductor 4 made of a plurality of core wires can be provided at both ends with different welding planes as required. In order to avoid the large current flowing through the flexible conductor 4, which generates a large amount of electromagnetic interference around the flexible conductor 4 and affects the power receiving device of the automobile, the flexible conductor 4 is manufactured by winding or twisting non-shielded multi-core wires around each other, thereby reducing the electromagnetic interference generated in the flexible conductor 4. The flexible conductor 4 twisted around each other cancels out the generated electromagnetic interference, so that the power receiving device of the automobile is not affected, the use of shielding layers is reduced, the processing and material costs are reduced, and the cost of the automobile is reduced.

[0079] In another embodiment, the flexible conductor 4 is a spiral conductor 42. As shown in Fig. 4, the spiral conductor 42 has a spring shape and has spring elasticity, and can effectively release vibration force.

[0080] In some embodiments, the flexible conductor 4 has a different cross-sectional area from the first connecting member 3 or the second connecting member 6. When transmitting current, the cross-sectional area only needs to meet the requirements of current transmission, thus ensuring sufficient current strength even when the cross-sectional area is reduced, thereby saving costs.

[0081] In another embodiment, the flexible conductor 4 has a different cross-sectional shape from the first connection member 3 or the second connection member 6. In this way, it can be disposed in different connectors as needed to meet different assembly environments and be easily inserted into connectors with different hole sizes.

[0082] In some embodiments, the flexible conductor 4 and the first connection member 3 are detachably connected by locking, screwing, or crimping. The locking method refers to providing corresponding locking claws or locking grooves on the flexible conductor 4 and the first connection member 3, respectively, and assembling and connecting them to each other by the locking grooves and locking claws. The locking method has the advantages of quick connection and detachability.

[0083] The screw connection is that the flexible conductor 4 and the first connection member 3 each have a screw structure and can be screwed together or connected using a separate stud and nut. The screw connection has the advantage of being detachable, allowing repeated assembly and disassembly, and is suitable for situations where assembly and disassembly are required regularly.

[0084] The crimping method employs a rivet to crimp the flexible conductor 4 and the first connection member 3 together to form a single unit. The advantages of crimping are that the connection is strong, the processing method is simple, and the operation is easy.

[0085] In some embodiments, the end of the first connection member 3 is a first flat portion, the first flat portion has a first through hole, the flexible conductor 4 has a second through hole, and the first through hole and the second through hole are connected by a bolt or a rivet. The first flat portion and the flexible conductor 4 are more suitable for screwing or caulking and are stronger than columnar direct screwing.

[0086] Furthermore, the first flat portions include two parallel portions each having a first through hole, and the second through hole is located between the two first through holes. That is, the two first flat portions have the flexible conductor 4 interposed therebetween, and the second through hole is provided between the two first through holes and is further fixed by a bolt to make the connection stronger.

[0087] In some embodiments, the flexible conductor 4 and the second connection member 6 are detachably connected by locking, screwing, or crimping. The locking method refers to providing the flexible conductor 4 and the second connection member 6 with corresponding locking claws or locking grooves, respectively, and assembling and connecting them to each other by the locking grooves and locking claws. The locking method has the advantages of quick connection and detachability.

[0088] The screw connection is that the flexible conductor 4 and the second connection member 6 each have a screw structure and can be screwed together or connected using a separate stud and nut. The screw connection has the advantage of being detachable, allowing repeated assembly and disassembly, and is suitable for situations where assembly and disassembly are required.

[0089] The crimping method employs a rivet to crimp the flexible conductor 4 and the second connection member 6 together to form a single unit. The crimping method has the advantages of providing a strong connection, being simple to process, and being easy to operate.

[0090] In some embodiments, the end of the second connecting member is a second flat portion, the second flat portion has a third through hole, the flexible conductor has a fourth through hole, and the third through hole and the fourth through hole are connected by a bolt or a rivet.

[0091] Furthermore, the second flat portion includes two parallel portions each having a third through hole, and the fourth through hole is located between the two third through holes. That is, the two first flat portions have the flexible conductor 4 interposed therebetween, and the second through hole is provided between the two first through holes and is further fixed by a bolt to make the connection stronger.

[0092] In some embodiments, the material of the plug terminal 2 includes copper. The plug terminal 2 including copper has high electrical conductivity and can effectively improve charging efficiency as a part of the charging system.

[0093] In some embodiments, the material of the transmission conductor 5 and / or the flexible conductor 4 includes aluminum. Aluminum has the second highest electrical conductivity after copper, and aluminum resources are abundant and inexpensive, making it one of the main materials to replace copper cables. In addition, aluminum is lightweight, and the transmission conductor 5 and the flexible conductor 4 made of a material containing aluminum can effectively reduce the weight of the vehicle body.

[0094] In some embodiments, the connector body 1 is a charging inlet. A plug terminal 2 is provided in the charging inlet, and a first connecting member 3, a flexible conductor 4, a second connecting member 6 and a transmission conductor 5 are connected to the plug terminal 2 in order, and the transmission conductor 5 is connected to an on-board battery to form a charging system for an electric vehicle.

[0095] The present invention further discloses a vehicle, which includes the flexible connection structure of the connector as described above, and the connector body 1 is detachably provided on the vehicle.

[0096] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are merely illustrative and are not intended to limit the scope of the present application. It should be understood by those skilled in the art that modifications may be made to the above examples without departing from the scope and spirit of the present invention. The scope of the present invention is limited by the appended claims. [Explanation of symbols]

[0097] 1, connector body; 2, insertion terminal; 3, first connecting member; 4, flexible conductor; 41, braided aluminum flat ribbon; 42, spiral conductor; 5, transmission conductor; 6, second connecting member.

Claims

1. The connector includes a connector body, a flexible conductor, and a transmission conductor, an insertion terminal is provided within the connector body, a first connection member is provided at an end of the insertion terminal, and a second connection member is provided at an end of the transmission conductor, The flexible conductor has one end electrically connected to the first connection member and the other end electrically connected to the second connection member. A flexible connection structure of a connector.

2. When the second connection member vibrates, the flexible conductor is deformed, thereby cushioning the vibration of the second connection member.

2. The flexible connection structure of a connector according to claim 1.

3. The flexible conductor is configured such that a radial displacement occurs in a portion of the flexible conductor that occupies at least 2% of the length of the flexible conductor along a longitudinal direction of the flexible conductor from one end connected to the second connection member.

3. The flexible connection structure of a connector according to claim 2.

4. The flexible conductor has a portion that does not undergo radial displacement along a longitudinal direction of the flexible conductor, the portion being at least 1% of the length of the flexible conductor, from one end connected to the first connection member.

3. The flexible connection structure of a connector according to claim 2.

5. The insertion terminal and the first connection member are integrally formed.

2. The flexible connection structure of a connector according to claim 1.

6. The insertion terminal and the first connection member are separate structures, and the insertion terminal and the first connection member are fixed to each other by welding or crimping.

2. The flexible connection structure of a connector according to claim 1.

7. The insertion terminal and the first connection member are separate structures, and the insertion terminal and the first connection member are detachably connected to each other by engagement, screwing, or crimping.

2. The flexible connection structure of a connector according to claim 1.

8. The transmission conductor and the second connection member are integrally formed.

2. The flexible connection structure of a connector according to claim 1.

9. The transmission conductor and the second connection member are fixed to each other by welding or crimping.

2. The flexible connection structure of a connector according to claim 1.

10. The transmission conductor and the second connection member are detachably connected by engagement, screwing, or crimping.

2. The flexible connection structure of a connector according to claim 1.

11. The flexible conductor is a braided flat ribbon.

2. The flexible connection structure of a connector according to claim 1.

12. The flexible conductor is a flexible flat ribbon made by stacking multiple thin plates.

2. The flexible connection structure of a connector according to claim 1.

13. The flexible conductor has a twisted portion, and the included angle between two adjacent planes connected by the twisted portion is between 0° and 90°.

13. The flexible connection structure of a connector according to claim 11 or 12.

14. The flexible conductor is formed by winding or twisting a plurality of core wires.

2. The flexible connection structure of a connector according to claim 1.

15. The flexible conductor is a spiral conductor.

2. The flexible connection structure of a connector according to claim 1.

16. The flexible conductor has a cross-sectional area different from that of the first connection member or the second connection member.

2. The flexible connection structure of a connector according to claim 1.

17. The flexible conductor has a cross-sectional shape different from that of the first connection member or the second connection member.

2. The flexible connection structure of a connector according to claim 1.

18. The flexible conductor and the first connection member are connected by welding or crimping.

2. The flexible connection structure of a connector according to claim 1.

19. The flexible conductor and the first connection member are detachably connected by engagement, screwing, or crimping.

2. The flexible connection structure of a connector according to claim 1.

20. The end of the first connection member is a first flat portion, the first flat portion has a first through hole, the flexible conductor has a second through hole, and the first through hole and the second through hole are connected by a bolt or a rivet.

20. The flexible connection structure of a connector according to claim 19.

21. The first flat portion includes two parallel portions each having a first through hole, and the second through hole is located between the two first through holes.

21. The flexible connection structure of a connector according to claim 20.

22. The flexible conductor and the second connection member are detachably connected by engagement, screwing, or crimping.

2. The flexible connection structure of a connector according to claim 1.

23. The end of the second connection member is a second flat portion, the second flat portion has a third through hole, the flexible conductor has a fourth through hole, and the third through hole and the fourth through hole are connected by a bolt or a rivet.

23. The flexible connection structure of a connector according to claim 22.

24. The second flat portion includes two parallel portions each having a third through hole, and the fourth through hole is located between the two third through holes.

24. The flexible connection structure of a connector according to claim 23.

25. The material of the insertion terminal includes copper.

2. The flexible connection structure of a connector according to claim 1.

26. The material of the transmission conductor and / or the flexible conductor includes aluminum.

2. The flexible connection structure of a connector according to claim 1.

27. The connector body is a charging inlet.

2. The flexible connection structure of a connector according to claim 1.

28. The flexible connection structure of the connector according to any one of claims 1 to 27 is included, and the connector body is detachably provided on the vehicle. A vehicle characterized by:

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