CN217215234U

CN217215234U - Flat belt type connecting mechanism, electric energy transmission device and motor vehicle

Info

Publication number: CN217215234U
Application number: CN202122400678.7U
Authority: CN
Inventors: 王超; 刘川
Original assignee: Changchun Jetty Automotive Parts Co Ltd
Current assignee: Changchun Jetty Automotive Parts Co Ltd
Priority date: 2021-10-01
Filing date: 2021-10-01
Publication date: 2022-08-16
Anticipated expiration: 2031-10-01

Abstract

The utility model provides a bandlet formula coupling mechanism, electric energy transmission device and motor vehicle, including public end coupling mechanism and female end coupling mechanism, public end coupling mechanism includes bandlet, bandlet terminal and the public end shell of being connected with bandlet and bandlet terminal, and female end coupling mechanism includes two bandlets, press from both sides the line terminal and the female end shell of being connected with two bandlets and press from both sides the line terminal, and public end coupling mechanism and female end coupling mechanism pass through the bandlet terminal and are connected with the terminal electricity of pressing from both sides the line, and public end shell and female end shell be assembled between/be connected, form bandlet formula coupling mechanism. Through the range upon range of setting of bandlet to set up appropriate interval, electromagnetic interference that can effectual reduction bandlet circular telegram back caused other spare parts, thereby reach cancellation high voltage charging harness shielding layer structure, reach the purpose that reduces cost, reduce weight.

Description

Flat belt type connecting mechanism, electric energy transmission device and motor vehicle

Technical Field

The utility model relates to a technical field that charges especially relates to a bandlet formula coupling mechanism, electric energy transmission device and motor vehicle.

Background

A new energy battery of a new energy automobile supplements energy by using a charging system. Besides the charging seat, the charging system also comprises a high-voltage flat belt type connecting mechanism connected with the battery system, the charging harness is the most important unit in the high-voltage system of the electric vehicle, the traditional charging harness adopts a copper wire as a charging cable, and the tail end of the copper wire is connected with a plug-in terminal and is electrically connected with the battery system. Present high-voltage flat belt type connecting mechanism all is the assembly structure connector, has the structure complicacy, the assembly difficulty, and the connector is with high costs scheduling problem, and the copper product use amount of cable and terminal is high in addition, connects processing more complicacy, also is that high-voltage flat belt type connecting mechanism cost is high at all.

When a large current passes through the high-voltage charging harness, electromagnetic interference can be generated on other parts, in order to avoid the electromagnetic interference, a shielding layer needs to be added on the outer side of the high-voltage charging harness, and the cost and the weight of the high-voltage charging harness are obviously increased by the shielding layer.

In addition, in a general charging system, a temperature measuring structure is installed on a charging seat, and a flat belt type connecting mechanism is not provided, but the conduction current is the same, and when the temperature of the flat belt type connecting mechanism rises, monitoring and timely stopping charging operation are also needed to protect the safety of a charging harness and a battery system.

With the expansion of the market of electric vehicles, a flat belt type connecting mechanism and an electric energy transmission device with simple structure and cost advantage are urgently needed for a charging system.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a bandlet formula coupling mechanism, the range upon range of setting of bandlet to set up suitable interval, electromagnetic interference that can cause other spare parts after the effectual reduction bandlet circular telegram, thereby reach cancellation high-voltage charging wire harness shielding layer structure, reach the purpose that reduces cost, reduce weight.

The above object of the present invention can be achieved by the following technical solutions:

the utility model provides a bandlet formula coupling mechanism, including public end coupling mechanism and female end coupling mechanism, public end coupling mechanism include bandlet, bandlet terminal and with the bandlet with the public end shell that the bandlet terminal is connected, female end coupling mechanism include two bandlets, press from both sides the line terminal and with two bandlets with the female end shell that the press from both sides the line terminal and connect, public end coupling mechanism with female end coupling mechanism passes through the bandlet terminal with press from both sides the line terminal electricity and connect, public end shell with female end shell connects, forms bandlet coupling mechanism.

In a preferred embodiment, the aspect ratio of the cross-section of the flat strip is 1:1 to 120: 1.

In a preferred embodiment, the aspect ratio of the cross-section of the double flat strip is 1:1 to 120: 1.

In a preferred embodiment, the number of the flat belts is at least two, the flat belts are stacked up and down, and the male end housing is integrally injection-molded between at least part of the flat belts and/or at least part of the flat terminals and/or on the periphery to form an insulation structure.

In a preferred embodiment, the flat belt comprises a first flat wire core and a first outer insulation layer, the first outer insulation layer being partly stripped off to expose the first flat wire core, the first outer insulation layer having an end portion within or abutting the male end housing.

In a preferred embodiment, the flat ribbon comprises a first flat wire core having a hardness of 8HV to 105 HV.

In a preferred embodiment, the number of the flat belts is at least two, the flat belts are stacked up and down, the flat belts comprise first flat wire cores, and the vertical distance between the two first flat wire cores is less than or equal to 27 cm.

In a preferred embodiment, the number of the flat belts is at least two, the flat belts are stacked up and down, the flat belts comprise first flat wire cores, and the vertical distance between the two first flat wire cores is less than or equal to 7 cm.

In a preferred embodiment, the number of the flat belts is at least two, the flat belts are stacked up and down, the flat belts comprise first flat wire cores, and the overlapping degree of the two first flat wire cores in the stacking direction is 40% -100%.

In a preferred embodiment, the flat belt comprises a first flat wire core, the front end of the first flat wire core is connected with the flat terminal, and the male end housing covers at least part of the flat terminal.

In a preferred embodiment, the flat belt comprises a first flat wire core, and the first flat wire core and the flat terminal are of an integral structure.

In a preferred embodiment, the flat terminal protrudes at least partially out of the male housing, or the male housing has a receiving cavity, and the flat terminal protrudes at least partially out of the bottom surface of the receiving cavity but does not protrude beyond the male housing.

In a preferred embodiment, the flat ribbon comprises a first flat wire core, a first bent part is arranged between the first flat wire core and the flat terminal, and the angle of the first bent part is 0-180 °.

In a preferred embodiment, the flat terminal is at least partially provided with a first transition layer.

In a preferred embodiment, the thickness of the first transition layer is 0.3 μm to 3000 μm.

In a preferred embodiment, the thickness of the first transition layer is from 2.5 μm to 1000 μm.

In a preferred embodiment, the flat terminal is provided with a chamfer at an end thereof.

In a preferred embodiment, the male end connection mechanism includes an interlocking connector that is at least partially integrally molded in the male end housing.

In a preferred embodiment, the number of the double flat belts is at least two, the double flat belts are stacked up and down, and the female end housing is integrally injection-molded between and/or around at least part of the double flat belts and/or at least part of the wire clamping terminal to form an insulation structure.

In a preferred embodiment, the double flat belt includes a second flat wire core and a second outer insulating layer, the second outer insulating layer is partially stripped to expose the second flat wire core, and an end portion of the second outer insulating layer is in the female end housing or abuts against the female end housing.

In a preferred embodiment, the double flat ribbon comprises a second flat wire core having a hardness of from 8HV to 105 HV.

In a preferred embodiment, the number of the double flat belts is at least two, the double flat belts are stacked up and down, the double flat belts comprise second flat wire cores, and the vertical distance between the two second flat wire cores is smaller than or equal to 27 cm.

In a preferred embodiment, the number of the double flat belts is at least two, the double flat belts are stacked up and down, the double flat belts comprise second flat wire cores, and the vertical distance between the two second flat wire cores is less than or equal to 7 cm.

In a preferred embodiment, the number of the double flat belts is at least two, the double flat belts are stacked up and down, the double flat belts comprise second flat wire cores, and the overlapping ratio of the two second flat wire cores in the stacking direction is 40% -100%.

In a preferred embodiment, the double flat ribbon comprises a second flat wire core, and the second flat wire core is overlapped and connected by two flat conductors.

In a preferred embodiment, the double flat belt comprises a second flat wire core, the front end of the second flat wire core is connected with the wire clamping terminal, and the female end housing covers at least part of the wire clamping terminal.

In a preferred embodiment, the double flat belt comprises a second flat wire core, and the second flat wire core and the wire clamping terminal are of an integral structure.

In a preferred embodiment, the wire clamping terminal at least partially protrudes out of the outer wall of the female housing, or an opening boss is provided on the female housing, and the wire clamping terminal is at least partially disposed in the opening boss.

In a preferred embodiment, the double flat belt comprises a second flat wire core, a second bent part is arranged between the front end of the second flat wire core and the wire clamping terminal, and the angle of the second bent part is 0-180 °.

In a preferred embodiment, at least a part of the surface of the wire clamping terminal is provided with a second transition layer.

In a preferred embodiment, the thickness of the second transition layer is from 0.3 μm to 3000 μm.

In a preferred embodiment, the thickness of the second transition layer is from 2.5 μm to 1000 μm.

In a preferred embodiment, the front end of the wire clamping terminal is provided with an open groove, and the distance of the open side of the groove is greater than the distance of the closed side of the groove.

In a preferred embodiment, a clip is sleeved on the wire clamping terminal, and the material of the clip is memory alloy.

In a preferred embodiment, the transformation temperature of the memory alloy is set within the range of 40 ℃ to 70 ℃, and the clamping band is in an expanded state in a state that the temperature of the clamping band is lower than the transformation temperature; and under the condition that the temperature of the clamp is higher than the transformation temperature, the clamp is in a clamping state.

In a preferred embodiment, a clamping hoop is sleeved on the wire clamping terminal, the clamping hoop includes a side wall and an elastic unit fixed on the side wall, and the elastic unit is connected with the wire clamping terminal.

In a preferred embodiment, the force applied to the wire clamping terminal by the elastic unit ranges from 3N to 200N.

In a preferred embodiment, the elastic unit is an elastic rubber body, a spring or a metal elastic sheet.

In a preferred embodiment, the female end connection mechanism has a high voltage interlock structure that is electrically connected to the interlock connector to form a circuit.

In a preferred embodiment, the female end connection and/or the male end connection has a sealing structure.

In a preferred embodiment, the seal structure is over-molded on the female end housing and/or the male end housing.

In a preferred embodiment, the female end connection has at least one temperature measurement structure for measuring the temperature of the double straps and/or the wire clamping terminal.

In a preferred embodiment, the female end connecting mechanism has at least one temperature measuring structure, and the temperature measuring structure is attached to the double flat belts and/or the wire clamping terminals and is used for measuring the temperature of the double flat belts and/or the wire clamping terminals.

In a preferred embodiment, the female end connecting mechanism has at least one temperature measuring structure, the number of the double flat belts is at least two, and the temperature measuring structure is located between the double flat belts and used for measuring the temperature of the double flat belts.

In a preferred embodiment, the male end connection has at least one temperature measurement structure for measuring the temperature of the ribbon and/or the ribbon terminals.

In a preferred embodiment, the male end connecting mechanism has at least one temperature measuring structure, and the temperature measuring structure is attached to the flat belt and/or the flat terminal and is used for measuring the temperature of the flat belt and/or the flat terminal.

In a preferred embodiment, the male end connecting mechanism is provided with at least one temperature measuring structure, the flat belts are at least two, and the temperature measuring structure is positioned between the flat belts and used for measuring the temperature of the flat belts.

In a preferred embodiment, the male end connection mechanism and the female end connection mechanism are connected by one or more of an adhesive connection, a magnetic attraction connection, a bayonet connection, a plug connection, a latch connection, a bundling connection, a screw connection, a rivet connection and a welding connection.

In a preferred embodiment, the insertion force between the flat terminal and the wire clamping terminal is between 3N and 150N.

In a preferred embodiment, the insertion force between the flat terminal and the wire clamping terminal is between 10N and 130N.

In a preferred embodiment, the contact resistance between the flat terminal and the clip terminal is less than 9m Ω.

In a preferred embodiment, the contact resistance between the flat terminal and the clip terminal is less than 1m Ω.

In a preferred embodiment, the number of plugging and unplugging between the male end connection mechanism and the female end connection mechanism is greater than or equal to 9.

In a preferred embodiment, the male end connection mechanism has a weight of 305g or less.

In a preferred embodiment, the height of the male end connecting mechanism along the plugging direction is less than or equal to 208 mm.

An electrical energy transmission device comprising a flat belt connection as claimed in any one of the preceding claims.

A motor vehicle comprising a flat belt connection as claimed in any one of the preceding claims.

The utility model discloses a characteristics and advantage are:

1. the utility model discloses a bandlet formula coupling mechanism sets up injection moulding's public end shell and female end shell, and processing is simple, and the cost is lower, can directly mould plastics and carry out the insulation among the bandlet, can reduce the installation cost of bandlet to can be multiple shape with the bandlet front end according to the demand shaping, and need not consider the problem of assembly, save manufacturing procedure, reduce the processing cost.

2. The utility model discloses a bandlet formula coupling mechanism, the range upon range of setting of bandlet to set up suitable interval, electromagnetic interference that can cause other spare parts after the effectual reduction bandlet circular telegram, thereby reach cancellation high-voltage charging wire bundle shielding layer structure, reach the demand that reduces cost, reduce weight.

3. In the connection of the flat terminal and the wire clamping terminal, the transition layer can reduce the electrochemical reaction between the flat terminal of the flat belt and the wire clamping terminal, and the technical problem that the flat belt can be connected with other terminals or electric devices only through the copper terminal is solved.

4. The bandlet can integrated into one piece with bandlet terminal, two bandlets and press from both sides line terminal, and through bandlet terminal and the function of pressing from both sides line terminal, bandlet and two bandlets self realize the terminal, have solved bandlet and two bandlets need connect the problem with high costs of other terminals, inefficiency, can realize safe, quick plug.

5. Adopt the clamp to press from both sides tight fixedly to the clip line terminal, can increase the pressure that the clip line terminal applied to flat terminal, avoid because long-time the use, lead to the clamping-force of clip line terminal to reduce, the contact resistance increase between clip line terminal and the flat terminal leads to the conduction current increase to and clip line terminal and flat terminal temperature rise, can lead to the burning accident when serious.

6. The clamp has a memory function, when the abnormal temperature is lower than the abnormal temperature, the clamp is usually in an expansion state, the flat terminal of the flat belt can be butted with the wire clamping terminal without insertion force, and the electric appliance is conveniently inserted by an operator easily. The wire clamping terminal conducts current in work, the temperature of the wire clamping terminal and the temperature of the clamping hoop gradually rise under the action of the resistor, when the temperature rises above the abnormal temperature, the clamping hoop can be contracted radially, the contact area and the contact force of the wire clamping terminal and the flat terminal are increased through the rise of the temperature, the contact reliability is improved, the requirement of insertion force is omitted, the work is easier, and the work efficiency is improved.

7. The embedded high-voltage interlocking structure replaces the prior assembled high-voltage interlocking, is fixed in the connecting mechanism in an integrated injection molding mode, does not need to be assembled, reduces the cost and completely meets the high-voltage interlocking effect.

8. The sealing structure of the connecting mechanism is not provided with an independent sealing ring, but adopts a secondary injection molding sealing structure instead of the traditional sealing ring, can be directly molded on the connecting mechanism, and has better injection molding combination property and reduced cost.

9. Adopt temperature measurement mechanism, can monitor the terminal temperature of coupling mechanism inside alone, avoid because the temperature sensor of other positions damages, and can't monitor coupling mechanism's temperature.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained without inventive efforts.

Fig. 1 is a schematic structural view of the middle flat belt type connecting mechanism of the present invention.

Fig. 2 is a cross-sectional view of the connection between the middle flat belt and the double flat belts of the present invention.

Fig. 3 is a schematic view of the connection structure of the middle flat belt and the double flat belts of the present invention.

Fig. 4 is a schematic structural view of the male-end connection mechanism of the present invention.

Fig. 5 is a schematic view of the structure of the middle flat belt of the present invention.

Fig. 6 is a schematic structural view of the male-end connection mechanism of the present invention.

Fig. 7 is a schematic view of the structure of the middle double flat belt of the present invention.

Fig. 8 is a schematic view of the middle clip structure of the present invention.

Fig. 9 is a schematic diagram of the interlock connector of the present invention.

Fig. 10 is a schematic view of a medium-high voltage interlock structure according to the present invention.

Fig. 11 is a schematic view of the magnetic field structure of the middle flat belt and the double flat belts of the present invention.

Fig. 12 is a schematic view of the magnetic field structure of the middle flat belt and the double flat belts of the present invention.

Fig. 13 is a schematic sectional view of the flat belt type connecting mechanism of fig. 1 in the direction of a.

Wherein:

10. a male end connection mechanism; 11. a flat belt; 12. a male end housing; 111. a first insulating layer; 112. a first flat wire core; 113. a flat terminal; 1131. a first bent portion; 13. an interlocking connector;

20. a female end connection mechanism; 21. a double flat belt; 22. a female end housing; 211. a second outer insulating layer; 212. a second ribbon core; 213. a wire clamping terminal; 2131. a second bent portion; 214. a flat conductor; 23. a high-voltage interlock structure;

30. clamping; 31. a side wall; 32. an elastic unit;

40. a sealing structure;

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In one embodiment, a flat belt type connection mechanism includes a male end connection mechanism 10 and a female end connection mechanism 20, the male end connection mechanism 10 includes a flat belt 11, a flat terminal 113 and a male end housing 12 connected to the flat belt 11 and the flat terminal 113, the female end connection mechanism 20 includes a double flat belt 21, a wire clamping terminal 213 and a female end housing 22 connected to the double flat belt 21 and the wire clamping terminal 213, the male end connection mechanism 10 and the female end connection mechanism 20 are electrically connected to the wire clamping terminal 213 through the flat terminal 113, and the male end housing 12 is assembled with the female end housing 22 to form the flat belt type connection mechanism, as shown in fig. 1 to 6.

The bandlet is range upon range of to set up suitable interval, electromagnetic interference that can effectual reduction bandlet circular telegram after to other spare parts cause, thereby reach and cancel high-voltage charging wire bundle shielding layer structure, reach the demand that reduces cost, reduction in weight.

Furthermore, the flat belt 11 or the double flat belts 21 have great advantages in heat dissipation and assembly, and the width and the height of the conductive part of the flat belt 11 or the double flat belts 21 are large, namely, the flat belt 11 or the double flat belts 21 are in large plane contact with the external environment, so that effective heat dissipation can be performed, the temperature rise of the cable caused by current can be rapidly reduced, and the service life of the cable is prolonged. In addition, when the cable is assembled and the installation environment is not high enough, the flat belts 11 or the double flat belts 21 can be adopted, the cable laying height is reduced, the cable can be effectively attached to the installation environment for assembly, the requirement on the installation space is reduced, and the space utilization rate is improved.

In some embodiments, the flat terminal 113 and the wire clamping terminal 213 are made of a conductive metal material containing one or more of nickel, cadmium, zirconium, chromium, cobalt, manganese, aluminum, tin, titanium, zinc, copper, silver, gold, phosphorus, tellurium, beryllium, and lead, which have stable properties and good conductivity, and the preferred material is a material containing copper or a copper alloy or aluminum or an aluminum alloy.

In some embodiments, the material of the conductive portions of the flat belts 11 and the double flat belts 21 is one or more of aluminum, phosphorus, tin, copper, iron, manganese, chromium, titanium and lithium, wherein the material of the conductive portions of the flat belts 11 and the double flat belts 21 contains aluminum or aluminum alloy, which is one of the main means for recently saving energy and reducing cost. In the field of electrical connection, copper wires are used for conducting current, and copper has high conductivity and good ductility. However, as the price of copper increases, the material cost for using copper as a wire becomes higher. For this reason, alternatives to metallic copper are being sought to reduce costs. The content of metal aluminum in the earth crust is about 7.73%, the price is relatively low after the refining technology is optimized, the weight of the aluminum is lighter than that of copper, the conductivity is only inferior to that of the copper, and the aluminum can replace part of the copper in the field of electrical connection. Therefore, aluminum is a trend to replace copper in the field of automotive electrical connection. In one embodiment, the cross-sectional aspect ratio of the ribbons 11 is from 1:1 to 120: 1;

in order to verify the influence of the length and width ratio of the cross section of the flat belt 11 on the temperature rise and the tensile strength of the flat belt 11, the inventor selects flat belt 11 samples with the same sectional area specification and different length-width ratios, tests the temperature rise and the tensile strength of the flat belt 11, and the test results are shown in table 1.

Test method of temperature rise of flat belt 11: the same current is applied to the flat belt 11, the temperature of the flat belt 11 at the same position before the application of the current and after the temperature stabilization is detected in a closed environment, and the absolute value is obtained by taking the difference. In this example, a temperature rise greater than 50K is considered unacceptable.

The tensile strength test method of the flat belt 11 comprises the following steps: using a universal tensile testing machine, fixing two ends of the flat belt 11 sample piece on a stretching clamp of the universal tensile testing machine respectively, stretching at a speed of 50mm/min, and recording a tensile value at the final stretch-break, wherein in the embodiment, the tensile value is greater than 1600N as a qualified value.

Table 1: influence of the length/width ratio of the cross section of the flat belt 11 on the temperature rise and tensile strength of the flat belt 11

As can be seen from table 1 above, when the aspect ratio of the cross section of the flat belt 11 is less than 1:1, the temperature rise of the flat belt 11 is less than 50K, and the temperature rise of the flat belt 11 is greater than 50K, and the condition is better, because the larger the aspect ratio of the cross section of the flat belt 11 is, the larger the heat dissipation area of the flat belt 11 is, the same temperature is increased, and the lower the temperature rise value of the flat belt 11 with better heat dissipation is. When the aspect ratio of the cross section of the flat belt 11 is greater than 120:1, because the flat belt 11 is too thin, when the flat belt 11 is under tension, the too thin flat belt 11 cannot bear large tension and is broken, and at this time, the tensile strength of the flat belt 11 does not meet the requirement of a qualified value. Accordingly, the inventors set the cross-sectional aspect ratio of the ribbon 11 to be 1:1 to 120: 1.

In one embodiment, the cross-sectional aspect ratio of the double flat strip 21 is from 1:1 to 120: 1;

in order to verify the influence of the length and width ratio of the cross section of the double-flat belt 21 on the temperature rise and the tensile strength of the double-flat belt 21, the inventor selects double-flat belt 21 samples with the same sectional area specification and different length-width ratios to test the temperature rise and the tensile strength of the double-flat belt 21, and the test results are shown in table 2.

Test method of temperature rise of the double flat belt 21: the same current is applied to the double flat belts 21, the temperatures of the same positions of the double flat belts 21 before the application of the current and after the temperature stabilization are detected in a closed environment, and the absolute value is obtained by taking the difference. In this example, a temperature rise greater than 50K is considered unacceptable.

The tensile strength test method of the double flat belt 21 comprises the following steps: using a universal tensile testing machine, fixing two ends of the double flat belt 21 sample piece on a stretching jig of the universal tensile testing machine respectively, stretching at a speed of 50mm/min, and recording a tensile value at the final stretch-break, wherein in the embodiment, the tensile value is greater than 1600N as a qualified value.

Table 2: influence of the ratio of the length and width of the cross section of the double flat belt 21 on the temperature rise and tensile strength of the double flat belt 21

As can be seen from table 2 above, when the aspect ratio of the cross section of the double flat belt 21 is less than 1:1, the temperature rise of the double flat belt 21 is less than 50K, and the temperature rise of the double flat belt 21 is greater than 50K, and the condition is better, because the larger the aspect ratio of the cross section of the double flat belt 21 is, the larger the heat dissipation area of the double flat belt 21 is, the same temperature rise is made, and the lower the temperature rise value of the double flat belt 21 with better heat dissipation is made. When the aspect ratio of the cross section of the double flat belt 21 is greater than 120:1, because the double flat belt 21 is too thin, when the double flat belt 21 is subjected to a tensile force, the excessively thin double flat belt 21 cannot bear a large tensile force and is broken, and at this time, the tensile strength of the double flat belt 21 does not meet the requirement of a qualified value. Thus, the inventors set the cross-sectional aspect ratio of the double-ribbonized band 21 to be 1:1 to 120: 1.

In one embodiment, as shown in fig. 3, at least two of the flat belts are stacked one on top of the other, and the male housing is integrally injection molded between and/or around at least a portion of the flat belts and/or at least a portion of the flat terminals to form an insulating structure.

A general conductive circuit is configured with two circuits, for example, a dc positive charging cable and a dc negative charging cable in a dc charging station, and an ac live line charging cable and an ac neutral line charging cable in an ac charging station. The flat belts 11 are stacked up and down, so that the assembly space can be effectively utilized, and the function of counteracting electromagnetic interference is achieved. After the two flat belts 11 are stacked up and down, the raw material of the male end shell 12 is injected between at least parts of the flat belts 11 and/or the flat terminals 113 and the periphery of the flat belts 11 and/or the flat terminals 113 through an injection mold to form the male end shell 12, so that the flat belts 11 and the flat terminals 113 can be well insulated and protected.

In some embodiments, when there are more connected circuits, the flat belts 11 may be 3, 4 or more, and connect different circuits.

The flat belt type connecting mechanism in the embodiment is provided with the injection-molded male end shell 12, is simple to process and low in cost, can be directly injected into the flat belt 11 or the double flat belts 21 and is insulated, can reduce the installation cost of the flat belt 11 or the double flat belts 21, and can mold the front ends of the flat belt 11 or the double flat belts 21 into various shapes according to requirements without considering the problem of assembly, thereby saving the processing procedure and reducing the processing cost.

In one embodiment, as shown in fig. 2, the flat ribbon 11 includes a first outer insulating layer 111 and a first flat core 112, the first outer insulating layer 111 is partially stripped to expose the first flat core 112, and an end of the first outer insulating layer 111 is in the male end housing 12 or abuts against the male end housing 12. The first flat wire core 112 is a conductive part of the flat belt 11, the first outer insulating layer 111 is an insulating part of the flat belt 11, before the male end housing 12 is injection-molded, a part of the first outer insulating layer 111 of the flat belt 11 needs to be stripped, the first flat wire core 112 inside is exposed, and then the connection with the flat terminal 113 and the integral injection molding with the male end housing 12 are performed.

In one embodiment, there are at least two ribbons 11, the ribbons 11 are stacked one on top of the other, the ribbons 11 comprise first ribbon cores 112, and the vertical distance between the two first ribbon cores 112 is 27cm or less.

Further, at least two flat belts 11 are provided, the flat belts 11 are stacked up and down, the flat belts 11 comprise first flat wire cores 112, and the vertical distance between the two first flat wire cores 112 is less than or equal to 7 cm.

When the flat belt 11 is powered on, an induced magnetic field is generated, and the induced magnetic field may generate electromagnetic interference to the outside, and a common solution in the prior art is to provide an electromagnetic shielding layer outside the flat belt 11. In order to cancel shielding structure, reduce cost, weight reduction, the utility model discloses a following design, an electric energy transmission system for vehicle includes the bandlet 11 of two range upon range of settings.

When two flat belts 11 are stacked one on top of the other, the magnetic field generated is as shown in fig. 11 and 12. Because the first flat wire cores 112 are of a flat structure, the strongest magnetic field is located at the position with the largest area, the magnetic fields of the two first flat wire cores 112 can be offset by laminating the first flat wire cores 112 (because the currents in the two first flat wire cores 112 are the same in magnitude and the directions are opposite, the induced magnetic field strengths are the same and the directions are opposite), and therefore the electromagnetic interference on other electric devices when the first flat wire cores 112 are electrified is eliminated.

Preferably, the two flat belts 11 are parallel to each other in the width direction. The flat bands 11 are mirror images of each other. The distance between the first flat wire cores 112 is H. The two flat belts 11 are stacked in the vertical direction in fig. 11 and 12.

When the overlapping ratio of the two flat belts 11 in the stacking direction is 100%, the influence of the distance H between the first flat wire cores 112 on the magnetic field cancellation is shown in table 3,

a percentage of field cancellation greater than 30% is a passing value.

Table 3: when the degree of lamination of the two flat belts 11 is 100%, the influence of the distance H between the first flat wire cores 112 on the magnetic field cancellation

The term "overlap ratio" means the percentage of the overlapping area of the two flat belts 11 in the stacking direction to the area of one flat belt 11.

As can be seen from table 3, when the contact ratio of the two flat belts 11 along the stacking direction is 100%, and the distance H between the two first flat wire cores 112 is less than or equal to 27cm, the magnetic field cancellation percentage is qualified, and a certain effect is provided on electromagnetic interference prevention; preferably, when the vertical distance between the two first flat wire cores 112 is less than or equal to 7cm, the magnetic field can be effectively counteracted, and the effect is obvious, so the distance H between the two first flat wire cores 112 is further set to be less than or equal to 7 cm.

The bandlet formula coupling mechanism of this embodiment, 11 range upon range of settings of bandlet to set up suitable interval, electromagnetic interference to other spare parts cause after can the 11 circular telegrams of effectual reduction bandlet, thereby reach cancellation high voltage charging wire bundle shielding layer structure, reach the demand that reduces cost, reduction in weight.

In one embodiment, there are at least two ribbons 11, the ribbons 11 are stacked one on top of the other, the ribbons 11 include first ribbon cores 112, and the ratio of overlap of the two first ribbon cores 112 in the stacking direction is 40% to 100%.

When the straps 11 are laid one on top of the other. Because the flat belt 11 is a flat structure, the strongest magnetic field is at the position with the largest area, the magnetic fields of the positive and negative charging flat belts 11 can be counteracted by placing the flat belts 11 in a laminated manner, and therefore the electromagnetic interference on other electric devices when the flat belts 11 are electrified is eliminated.

Distance between the bandlets 11 and the stromatolite contact ratio of bandlets 11 have very big influence to the degree of offsetting in magnetic field, the utility model discloses a control to the stromatolite distance of two bandlets 11 and two bandlets and contact ratio effectively offsets the magnetic field of bandlets 11.

When the distance between the first flat wire cores 112 of the two flat belts 11 is 7cm, the influence of the overlap ratio of the two flat belts 11 in the stacking direction on the magnetic field cancellation is shown in table 2, and the magnetic field cancellation percentage greater than 30% is a qualified value.

Table 4: when the distance between the two first flat wire cores 112 is 7cm, the influence of the overlapped area of the laminated layers of the flat belts 11 on magnetic field cancellation

As can be seen from table 4, when the distance between the two first flat wire cores 112 is 7cm, the overlap ratio of the flat belts 11 along the stacking direction is 40% to 100%, the magnetic field cancellation percentage is qualified, and a certain effect is provided for electromagnetic interference resistance, the overlap ratio of the two flat belts 11 along the stacking direction is more than 90%, and the effect is optimal when the overlap ratio of the two flat belts 11 along the stacking direction is 100%.

In one embodiment, as shown in fig. 1-5, the flat ribbon 11 includes a first flat wire core 112 and a first outer insulating layer 111, the front end of the first flat wire core 112 is connected to a flat terminal 113, and the male housing 12 covers at least a portion of the flat terminal 113. The ribbon 11 is stripped from the first outer insulating layer 111, the first flat wire core 112 is exposed, the first flat wire core 112 is connected with the flat terminal 113, the flat terminal 113 is arranged, and the flat belt type connecting mechanism can be effectively connected with the wire clamping terminal 213 in an opposite insertion mode, so that effective electric connection of the flat belt type connecting mechanism is realized.

In order to effectively connect the flat terminal 113 with the wire clamping terminal 213, the flat terminal 113 needs to be exposed outside the male housing 12 during the integral molding process of the flat belt 11 and the male housing 12, so as to prevent the flat terminal 113 and the wire clamping terminal 213 from being unable to be connected by plugging due to the covering of the male housing 12.

Further, the connection mode of the front end of the first flat wire core 112 and the flat terminal 113 is one or more of resistance welding, friction welding, ultrasonic welding, arc welding, laser welding, electron beam welding, pressure diffusion welding, screw connection, clamping connection, splicing connection and crimping connection.

The resistance welding method is a method of welding by using a strong current to pass through a contact point between an electrode and a workpiece and generating heat by a contact resistance, and the front end of the first flat wire core 112 and the flat terminal 113 are welded by resistance welding.

The friction welding method is a method of welding by plastically deforming a workpiece under pressure using heat generated by friction of a contact surface of the workpiece as a heat source, and the front end of the first flat wire core 112 and the flat terminal 113 are welded by friction welding.

The ultrasonic welding method is a method in which a high-frequency vibration wave is transmitted to the surfaces of two objects to be welded, and the surfaces of the two objects are rubbed against each other under pressure to form fusion between molecular layers, and the tip of the first flat wire core 112 and the flat terminal 113 are ultrasonically welded.

The arc welding method is a method of connecting metals by converting electric energy into thermal energy and mechanical energy required for welding using an electric arc as a heat source and utilizing a physical phenomenon of air discharge, and the main methods include shielded metal arc welding, submerged arc welding, gas shielded welding, and the like.

The laser welding method is an efficient and precise welding method using a laser beam with high energy density as a heat source.

The electron beam welding mode is that accelerated and focused electron beams are used to bombard the welding surface in vacuum or non-vacuum to melt the workpiece to be welded for welding.

The pressure welding method is a method of applying pressure to a workpiece to bring the joining surfaces into close contact with each other to generate a certain plastic deformation, thereby completing welding.

Diffusion welding refers to a solid state welding method in which a workpiece is pressed at a high temperature without visible deformation and relative movement.

The magnetic induction welding mode is that two workpieces to be welded produce instantaneous high-speed collision under the action of strong pulse magnetic field, and the surface layer of the material makes the atoms of the two materials meet in the interatomic distance under the action of very high pressure wave, so that a stable metallurgical bonding is formed on the interface. Which is one type of solid state cold welding, the first fixed end 121, which may or may not have similar properties, may be welded with the first cable 11.

The screw connection mode refers to a screw connection, and the connected piece is connected into a whole by a screw element (or a screw thread part of the connected piece) to form a detachable connection. The common threaded connecting parts include bolts, studs, screws, set screws and the like, and are mostly standard parts.

The clamping mode is that the connecting end or the connecting surface is respectively provided with a corresponding clamping jaw or a clamping groove, and the clamping jaw are assembled to be connected together. The clamping mode has the advantages of quick connection and detachability.

The splicing mode is that corresponding grooves and bulges are respectively arranged on the connecting ends or the connecting surfaces, and the connecting ends or the connecting surfaces are assembled by mutually joggling or splicing the grooves and the bulges so as to be connected together. The splicing mode has the advantages of stable connection and detachability.

The crimping mode is a production process that the front end of the first flat wire core 112 and the flat terminal 113 are assembled and then are punched and pressed into a whole by using a crimping machine. The advantage of crimping is mass productivity, and the adoption of automatic crimping machines can rapidly manufacture a large number of products of stable quality.

In one embodiment, the flat ribbon 11 includes a first flat wire core 112, and the first flat wire core 112 and the flat terminal 113 are an integral structure. The first flat wire core 112 and the flat terminal 113 can be made of the same material, or the front end part of the first flat wire core 112 can be directly molded into the flat terminal 113, so that the use of the flat terminal 113 can be saved, the material cost is reduced, the processing time is saved, and the front end of the first flat wire core 112 can be molded into various shapes as required without considering the problem of assembly.

In one embodiment, the blade terminal 113 at least partially protrudes from the male housing 12, or the male housing 12 has a receiving cavity, and the blade terminal 113 at least partially protrudes from the bottom of the receiving cavity but does not protrude beyond the male housing 12. The flat terminal 113 is at least partially protruded out of the male housing 12, and can be directly connected with the wire clamping terminal 213 in the female housing 22 by plugging, or can be arranged in the accommodating cavity of the male housing 12, and the wire clamping terminal 213 in the female housing 22 goes deep into the accommodating cavity and is connected with the flat terminal 113 by plugging, so that safe and quick plugging can be realized.

In one embodiment, as shown in fig. 2-3, the ribbon includes a first flat wire core, a first bend portion 1131 is included between the first flat wire core 112 and the flat terminal 113, and the angle of the first bend portion 1131 is 0 ° to 180 °. Different bending angles are set to the first bending part 1131, different shapes can be suitable for, different first flat wire cores 112 and connecting mechanisms of the flat terminal 113 directions, according to the needs of installation environment, and the connecting mechanisms simplify the structure, and the needs of connecting space are reduced, the designer can set the first bending part 1131 of different angles, the wire clamping terminal 213 for making the flat terminal 113 and different angles carry out the opposite insertion connection, thereby the cable on the two sides of the connecting mechanism goes to, in addition, the first flat wire cores 112 and the flat terminal 113 are connected through the first bending part 1131, the extending direction of the first flat wire cores 112 is adjusted through the first bending part 1131, the flat belt 11 and the installation environment are convenient to adapt to each other.

In this embodiment, the advantage of bandlet 11 still lies in convenient bending, and bandlet 11 can keep the shape after the bending promptly, can arrange along with the automobile body panel beating like this, can bend the shaping as required in different positions to save space, also can conveniently fix simultaneously.

In one embodiment, the blade terminal 113 is at least partially provided with a first transition layer. When the materials of the flat terminal 113 and the wire clamping terminal 213 are not the same, the electrical conduction therebetween may generate electrochemical corrosion due to potential difference, so as to reduce the service life of the flat terminal 113 and the wire clamping terminal 213, in order to reduce the electrochemical corrosion, a first transition layer may be disposed on the flat terminal 113, the material of the first transition layer may use a metal material having a potential between the potential potentials of the materials of the flat terminal 113 and the wire clamping terminal 213, so as to isolate the flat terminal 113 and the wire clamping terminal 213, and the first transition layer may reduce the electrochemical reaction between the flat terminal 113 and the wire clamping terminal 213, so as to prolong the service life of the flat terminal 113 and the wire clamping terminal 213.

Further, the first transition layer is attached to at least part of the surface of the flat terminal through one or more of electroplating, chemical plating, magnetron sputtering, vacuum plating, pressure welding, diffusion welding, friction welding, resistance welding, ultrasonic welding or laser welding.

The electroplating method is a process of plating a thin layer of other metals or alloys on the surface of some metals by utilizing the electrolysis principle.

The chemical plating method is a deposition process for generating metal through controllable oxidation-reduction reaction under the catalysis of the metal.

The magnetron sputtering method is characterized in that electrons spirally run near the surface of a target by utilizing the interaction of a magnetic field and an electric field, so that the probability of generating ions by the electrons colliding with argon is increased. The generated ions collide with the target surface under the action of the electric field so as to sputter the target material.

The vacuum plating method is to deposit various metal and non-metal films on the surface of the plastic part by distillation or sputtering under vacuum condition.

Pressure welding is a method of applying pressure to a welding material to bring the joining surfaces into close contact with each other to cause a certain plastic deformation, thereby completing the welding.

The friction welding method is a method of welding by plastically deforming a workpiece under pressure using heat generated by friction of a contact surface of the workpiece as a heat source.

The resistance welding method is a method of welding by using a strong current to pass through a contact point between an electrode and a workpiece and generating heat by a contact resistance.

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

Diffusion welding refers to a solid state welding method in which the workpiece is pressed at high temperature without visible deformation and relative movement. The first transition layer may be stably disposed on the surface of the flat terminal 113 in various manners or a combination thereof.

In one embodiment, the first transition layer has a thickness of 0.3 μm to 3000 μm.

Further, the thickness of the first transition layer is 2.5 μm to 1000 μm.

In order to test the influence of the thicknesses of the different first transition layers on the voltage drop, the inventor adopted the flat terminal 113 with the same material and structure, and set the first transition layers with different thicknesses on the flat terminal 113, and the wire clamping terminal 213 did not set the transition layers, and then tested the voltage drop after the flat terminal 113 and the wire clamping terminal 213 were plugged.

In this embodiment, it is not acceptable that the voltage drop of the flat terminal 113 and the wire clamping terminal 213 after being plugged is greater than 4 mV.

Table 5: effect of different first transition layer thicknesses on the voltage drop (mV):

as can be seen from the data in table 5 above, when the thickness of the first transition layer is greater than 3000 μm and less than 0.3 μm, the voltage drop of the plug structure of the flat terminal 113 and the wire clamping terminal 213 is greater than 4mV, which is not desirable, therefore, the thickness of the first transition layer is selected from 0.3 μm to 3000 μm by the inventors. Here, when the thickness of the first transition layer is in the range of 2.5 μm to 1000 μm, the voltage drop of the plug structure of the flat terminal 113 and the wire clamping terminal 213 is an optimal value, and therefore, the inventor preferably selects the thickness of the first transition layer to be 2.5 μm to 1000 μm.

In one embodiment, the first transition layer is made of a material containing one or more of nickel, cadmium, manganese, zirconium, cobalt, tin, titanium, chromium, gold, silver, zinc, tin-lead alloy, silver-antimony alloy, palladium-nickel alloy, graphite silver, graphene silver, hard silver, and silver-gold-zirconium alloy.

The material of the first transition layer is the same as that of the electrode overlapped with the flat terminal 113. Such a configuration can enhance the surface strength of the flat terminal 113 and prevent corrosion caused by the lap joint of the flat terminal 113 and the dissimilar metal.

To demonstrate the effect of different first transition layer materials on the performance of the flat terminal 113, the inventors performed a series of corrosion resistance time tests using the same specification and material with the flat terminal 113 of different first transition layer materials, and the experimental results are shown in table 6.

The corrosion resistance time test in table 6 is to put the flat terminal 113 sample into the salt spray test box, spray salt spray to each position of the flat terminal 113, take out and clean every 20 hours to observe the surface corrosion condition, i.e. a cycle, stop the test until the surface corrosion area of the flat terminal 113 sample is greater than 10% of the total area, and record the cycle number at that time. In this example, the cycle number is less than 80 times considered as failing.

Table 6: effect of different first transition layer materials on Corrosion resistance of Flat terminal 113 samples

As can be seen from table 6, when the first transition layer material contains the commonly used metals of tin, nickel and zinc, the experimental results are inferior to those of other selected metals, and the experimental results of other selected metals exceed the standard values more, and the performance is more stable. Therefore, the inventor selects the material of the first transition layer to contain (or be) one or more of nickel, cadmium, manganese, zirconium, cobalt, tin titanium, chromium, gold, silver, zinc-tin-lead alloy, silver-antimony alloy, palladium-nickel alloy, graphite silver, graphene silver, hard silver and silver-gold-zirconium alloy. And more preferably, the material of the first transition layer is selected to contain (or be) one or more of cadmium, manganese, zirconium, cobalt, titanium, chromium, gold, silver, tin-lead alloy, silver-antimony alloy, palladium-nickel alloy, graphite silver, graphene silver, hard silver and silver-gold-zirconium alloy.

In one embodiment, the ribbon comprises a first flat wire core, and the first flat wire core 112 has a hardness of 8HV to 105 HV.

In order to verify the influence of the hardness of the first flat wire core 112 on the peeling force of the first transition layer from the first flat wire core 112 and the bending torque of the first flat wire core 112 in the XY direction, the inventor selects the first flat wire core 112 sample piece with the same size and specification and with different hardness, and tests the peeling force of the first transition layer of the first flat wire core 112 and the bending torque of the first flat wire core 112, wherein the test results are shown in table 7.

The method for testing the peeling force of the first transition layer comprises the following steps: and (3) using a universal tensile testing machine, fixing the first flat wire core 112 sample piece welded with the first transition layer on a stretching jig of the universal tensile testing machine, stretching at the speed of 50mm/min, and recording the final tensile value when the first transition layer is peeled from the first flat wire core 112, wherein in the embodiment, the tensile value is greater than 900N and is a qualified value.

The torque test method when the first flat wire core 112 is bent comprises the following steps: when the first flat wire core 112 is bent at the same speed and the same radius by 90 degrees by using a torque tester, the torque value of the deformation of the first flat wire core 112 during the bending process is tested, and in the embodiment, the torque value is smaller than 30N · m, which is a qualified value.

Table 7: influence of hardness of the first flat wire core 112 on the peeling force of the first transition layer and the torque at the time of bending

It can be seen from table 7 above that, when the hardness of the first flat wire core 112 is less than 8HV, the tensile force value when the first transition layer is peeled off from the first flat wire core 112 is less than the qualified value, at this moment, the first transition layer on the first flat wire core 112 is easily peeled off from the first flat wire core 112 under the action of external force, so that the first flat wire core 112 cannot be protected, and the first flat wire core 112 fails in function, so that the purpose of electric energy transmission cannot be achieved, and a short circuit can be caused to cause a combustion accident in severe cases. When the hardness of first flat sinle silk 112 is for being greater than 105HV, because the hardness of first flat sinle silk 112 itself is very high, when first flat sinle silk 112 needs to be bent, need bigger moment of torsion to make first flat sinle silk 112 warp, the value of moment of torsion does not satisfy the qualification value requirement this moment. Therefore, the inventors set the hardness of the first flat wire core 112 to 8HV to 105 HV.

As can be seen from the data in table 7, when the hardness of the first flat wire core 112 is 10HV to 55HV, the tensile value when the first transition layer is peeled off from the first flat wire core 112 and the torque value when the first flat wire core 112 is bent in the XY direction are both in a good range, and therefore, the inventors prefer that the hardness of the first flat wire core 112 is 10HV to 55 HV.

In one embodiment, the ends of the flat terminals 113 are provided with chamfers. The flat terminal 113 and the wire clamping terminal 213 have assembly errors during injection molding and installation respectively, and the flat terminal 113 and the wire clamping terminal 213 are also subjected to large assembly errors during plug-in assembly.

In one embodiment, as shown in fig. 9 and 13, the male end connection mechanism 10 includes an interlock connector 13, the interlock connector 13 being at least partially integrally molded in the male end housing 12. The high-voltage interlocking is a safety design method for monitoring the integrity of a high-voltage circuit by using a low-voltage signal, a specific high-voltage interlocking implementation form has different designs for different projects, and the high-voltage interlocking is used for monitoring the accidental disconnection of the high-voltage circuit, so that the damage to an automobile caused by sudden power loss is avoided. In the embodiment, the high-voltage interlock, one end of the interlock connector 13 is provided with two pairs of pins, and two U-shaped or V-shaped low-voltage loops electrically connected with the pins do not need to be installed, and can be directly molded in the male end housing 12 in an integrated injection molding manner, so that the pins are exposed out of the male end housing 12 and are connected with the high-voltage interlock structure 23 in the female end connecting mechanism 20 in a matching manner, thereby forming a low-voltage monitoring loop.

In one embodiment, as shown in fig. 7, the number of the double flat belts is at least two, the double flat belts are stacked up and down, and the female end housing is integrally injection molded between and/or around at least a portion of the double flat belts and/or at least a portion of the wire clamping terminal to form an insulation structure.

A general conductive circuit is composed of two circuits, for example, a dc positive charging cable and a dc negative charging cable in a dc charging base, and an ac live wire charging cable and an ac neutral wire charging cable in an ac charging base. The double flat belts 21 are stacked up and down, so that the assembly space can be effectively utilized, and the function of counteracting electromagnetic interference is achieved. After the two double flat belts 21 are stacked up and down, the raw material of the female housing 22 is injected between and around at least a part of the double flat belts 21 and/or the wire clamping terminal 213 by an injection mold to form the female housing 22.

In one embodiment, as shown in fig. 2, the double flat ribbon 21 includes a second outer insulation layer 211 and a second flat wire core 212, the second outer insulation layer 211 is partially stripped to expose the second flat wire core 212, and the end of the second outer insulation layer 211 is in the female housing 22 or abuts against the female housing 22. The second flat wire core 212 is a conductive part of the double flat belt 21, the second outer insulating layer 211 is an insulating part of the double flat belt 21, before the injection molding of the female end housing 22, a part of the second outer insulating layer 211 of the double flat belt 21 needs to be stripped to expose the second flat wire core 212 inside, and then the connection of the wire clamping terminal 213 and the integral injection molding of the female end housing 22 are performed.

In one embodiment, the number of the double flat belts 21 is at least two, the double flat belts 21 are stacked up and down, the double flat belts 21 include second flat wire cores 212, and the vertical distance between the two second flat wire cores 212 is not more than 27 cm.

Further, the number of the double flat belts 21 is at least two, the double flat belts 21 are stacked up and down, the double flat belts 21 comprise second flat wire cores 212, and the vertical distance between the two second flat wire cores 212 is less than or equal to 7 cm.

Preferably, the two double straps 11 are parallel to each other in the width direction. The double flat strips 21 are mirror images of each other. The distance between the two second flat wire cores 212 is H. The two double flat belts 21 are stacked in the vertical direction in fig. 10.

When the overlap ratio of the two double flat belts 21 in the stacking direction is 100%, the influence of the distance H between the two second flat wire cores 212 on the magnetic field cancellation is shown in table 8, and the magnetic field cancellation percentage greater than 30% is a qualified value.

Table 8: when the overlapping area of the two flat belts 21 is 100%, the influence of the distance H between the two second flat wire cores 212 on the magnetic field cancellation

The term "degree of overlap" means the percentage of the overlapping area of the two double flat belts 21 in the stacking direction to the area of one double flat belt 21.

As can be seen from table 8, when the contact ratio of the two double flat belts 11 along the stacking direction is 100%, and the distance H between the two second flat wire cores 212 is less than or equal to 27cm, the magnetic field cancellation percentage is qualified, and a certain effect is achieved on electromagnetic interference prevention; preferably, when the vertical distance between the two second flat wire cores 212 is less than or equal to 7cm, the magnetic field can be effectively counteracted, and the effect is obvious, so that the distance H between the two second flat wire cores 212 is further less than or equal to 7 cm.

The bandlet formula coupling mechanism of this embodiment, 11 range upon range of settings of two bandlets to set up appropriate interval, the electromagnetic interference that causes other spare parts after 11 circular telegrams of two bandlets of effectual reduction, thereby reach cancellation high voltage charging wire harness shielding layer structure, reach the demand that reduces cost, reduction in weight.

In one embodiment, there are at least two double flat belts 21, the double flat belts 21 are stacked up and down, the double flat belt 21 includes the second flat wire core 212, and the overlapping ratio of the two second flat wire cores 212 along the stacking direction is 40% to 100%.

When the double straps 21 are placed one on top of the other. Because the flat belt 21 is of a flat structure, the strongest magnetic field is positioned at the position with the largest area, the magnetic fields of the positive and negative charged double flat belts 21 can be counteracted by the laminated arrangement of the double flat belts 21, and the electromagnetic interference to other electric devices when the double flat belts 21 are electrified is eliminated.

Distance between two bandlets 21 and two bandlets 21's stromatolite coincidence degree have very big influence to the degree of offsetting in magnetic field, the utility model discloses a control effectively offsets two bandlets 21's magnetic field to two bandlets 21's stromatolite design and two bandlets 21's stromatolite distance and coincidence degree.

When the distance between the first flat wire cores 112 of the two double flat belts 21 is 7cm, the influence of the contact ratio of the two flat belts 11 in the stacking direction on the magnetic field cancellation is shown in table 6, and the magnetic field cancellation percentage greater than 30% is a qualified value.

Table 9: when the distance between the two second flat wire cores 212 is 7cm, the influence of the overlapping area of the two flat belts 21 on magnetic field offset

As can be seen from table 9, when the distance between the two second flat wire cores 212 is 7cm, the overlap ratio of the double flat belts 21 in the stacking direction is 40% to 100%, the magnetic field cancellation percentage is qualified, and a certain effect is provided on electromagnetic interference resistance, the overlap ratio of the two double flat belts 21 in the stacking direction is above 90%, and the effect is optimal when the overlap ratio of the two double flat belts 21 in the stacking direction is 100%.

In one embodiment, the double flat ribbon 21 includes a second flat wire core 212, the second flat wire core 212 is overlapped and connected by two flat conductors 214, and the two flat conductors 214 may be overlapped and attached or may have a certain gap. When the two flat conductors 214 are bonded, the two flat conductors 214 are connected by one or more of pressure welding, diffusion welding, friction welding, resistance welding, ultrasonic welding, and laser welding.

The ultrasonic welding method is a method in which a high-frequency vibration wave is transmitted to the surfaces of two objects to be welded, and the surfaces of the two objects are rubbed against each other under pressure to form fusion between molecular layers.

Diffusion welding refers to a solid state welding method in which a workpiece is pressed at a high temperature without visible deformation and relative movement. The two flat conductors 214 may be combined together in a variety of ways, or combinations thereof.

In one embodiment, the double flat tape 21 includes a second flat wire core 212 and a second outer insulation layer 211, the front end of the second flat wire core is connected to the wire clamping terminal 213, and the female end housing 22 covers at least a portion of the wire clamping terminal 213. The double flat belts 21 are formed by stripping the second outer insulating layer 211 to expose the second flat wire core 212, the second flat wire core 212 is connected with the wire clamping terminal 213, the wire clamping terminal 213 is arranged, the double flat belts can be effectively connected with the flat terminals 113 in an opposite insertion mode, and effective electric connection of the flat belt type connecting mechanism is achieved.

In order to effectively connect the wire clamping terminal 213 with the flat terminal 113 in an inserting manner, in the process of integrally forming the double flat belts 21 and the female end housing 22, the wire clamping terminal 213 needs to be exposed outside the female end housing 22, so as to prevent the wire clamping terminal 213 and the flat terminal 113 from being unable to be connected in an inserting manner due to the covering of the female end housing 22.

In one embodiment, the front end of the second flat wire core 212 is connected to the wire clamping terminal 213 by one or more of resistance welding, friction welding, ultrasonic welding, arc welding, laser welding, electron beam welding, pressure diffusion welding, magnetic induction welding, screwing, clamping, splicing and crimping. The connection method is the same as the above method, and is not described herein again.

In one embodiment, the second flat wire core 212 and the wire clamping terminal 213 are an integral structure. The second flat wire core 212 and the wire clamping terminal 213 may be made of the same material, or may have a structure in which two flat conductors 214 extend and the wire clamping terminal 213 is formed at the front end, so that the use of the wire clamping terminal 213 can be saved, the material cost can be reduced, the processing time can be saved, and the two flat conductors 214 at the front end of the second flat wire core 212 can be molded into various shapes as required without considering the problem of assembly.

In one embodiment, the wire trap terminal 213 at least partially protrudes from the outer wall of the female housing 22, the female housing 22 is provided with an opening boss, and the wire trap terminal 213 is at least partially disposed in the opening boss. In the above embodiment, the flat terminal 113 is provided protruding from the male housing 12, and can be connected to the terminal 213 provided in the opening boss by mating insertion. Alternatively, the male housing 12 has a recess, and the flat terminal 113 protrudes from the bottom of the recess but does not protrude beyond the male housing 12, and can be inserted into the wire-clamping terminal 213 protruding from the outer wall of the female housing 22.

In one embodiment, as shown in fig. 2 to 3, the double flat ribbon 21 includes a second flat wire core 212, a second bent portion 2131 is included between the front end of the second flat wire core 212 and the wire clamping terminal 213, and the angle of the second bent portion 2131 is 0 ° to 180 °. The second bending portion 2131 is set to different bending angles, which can be suitable for different shapes, the connecting mechanism of different flat terminals 113 directions, according to the requirements of installation environment, and the connecting mechanism simplifies the structure, reduce the requirement of connecting space, the designer can set the second bending portion 2131 of different angles, which is used for connecting with the flat terminals 113 of different angles, thereby changing the cable trend on both sides of the connecting mechanism, in addition, the main body of the double flat belts 21 is connected with the wire clamping terminal 213 through the second bending portion 2131, the extending direction of the double flat belts 21 is adjusted through the second bending portion 2131, and the double flat belts 21 are convenient to adapt to the installation environment.

In one embodiment, at least a portion of the surface of the wire clamping terminal 213 is provided with a second transition layer. When the materials of the wire clamping terminal 213 and the flat terminal 113 are not the same, the electrical conduction between the two terminals can generate electrochemical corrosion due to potential difference, so as to reduce the service life of the wire clamping terminal 213 and the flat terminal 113, in order to reduce the electrochemical corrosion, a transition layer can be arranged on at least part of the surface of the wire clamping terminal 213, and the material of the transition layer can use a metal material with the potential between the potential potentials of the materials of the wire clamping terminal 213 and the flat terminal 113, so as to isolate the wire clamping terminal 213 and the flat terminal 113, slow down the electrochemical corrosion, and prolong the service life of the wire clamping terminal 213 and the flat terminal 113.

Further, the second transition layer is attached to at least a portion of the surface of the wire clamping terminal 213 by one or more of electroplating, chemical plating, magnetron sputtering, vacuum plating, pressure welding, diffusion welding, friction welding, resistance welding, ultrasonic welding, or laser welding. The method of securing the second transition layer to the wire trap terminal 213 is the same as the method of securing the first transition layer to the blade terminal 113.

In one embodiment, the second transition layer has a thickness of 0.3 μm to 3000 μm.

Further, the second transition layer has a thickness of 2.5 μm to 1000 μm.

In order to test the influence of different thicknesses of the second transition layer on the voltage drop between the wire clamping terminal 213 and the flat terminal 113, the inventor adopted the wire clamping terminal 213 with the same material and structure, set the first transition layers with different thicknesses on the wire clamping terminal 213, and set the flat terminal 113 without the transition layer, and then tested the voltage drop after the flat terminal 113 and the wire clamping terminal 213 are plugged.

In the present embodiment, it is not acceptable that the voltage drop of the wire clamping terminal 213 after being plugged into the flat terminal 113 is greater than 4 mV.

Table 10: effect of different second transition layer thicknesses on the voltage drop (mV):

as can be seen from the data in table 10 above, when the thickness of the second transition layer is greater than 3000 μm and less than 0.3 μm, the voltage drop of the plug structure of the flat terminal 113 and the wire clamping terminal 213 is greater than 4mV, which is not a desirable value, and therefore, the inventors chose the thickness of the second transition layer to be 0.3 μm to 3000 μm. Here, when the thickness of the second transition layer is in the range of 2.5 μm to 1000 μm, the voltage drop of the plug structure of the flat terminal 113 and the wire clamping terminal 213 is an optimal value, and therefore, the inventor preferably selects the thickness of the second transition layer to be 2.5 μm to 1000 μm.

In one embodiment, the second transition layer is made of a material containing one or more of nickel, cadmium, manganese, zirconium, cobalt, tin, titanium, chromium, gold, silver, zinc, tin-lead alloy, silver-antimony alloy, palladium-nickel alloy, graphite silver, graphene silver, hard silver, and silver-gold-zirconium alloy.

The material of the second transition layer is the same as that of the electrode overlapped with the wire clamping terminal 213. Such a scheme can enhance the surface strength of the wire clamping terminal 213 and prevent corrosion caused by the overlapping of the wire clamping terminal 213 and the dissimilar metal.

To demonstrate the effect of different second transition layer materials on the performance of the wire clamping terminal 213, the inventor performed a series of time tests of corrosion resistance using the same specification and material and using the wire clamping terminal 213 with different second transition layer materials, and the experimental results are shown in table 11.

The corrosion resistance time test in table 11 is to put the sample piece of the wire clamping terminal 213 into the salt spray test box, spray salt spray to each position of the wire clamping terminal 213, take out and clean every 20 hours to observe the surface corrosion condition, i.e. a cycle, stop the test until the surface corrosion area of the sample piece of the wire clamping terminal 213 is greater than 10% of the total area, and record the cycle number at that time. In this example, the number of cycles less than 80 was considered to be unacceptable.

Table 11: effect of different second transition layer materials on Corrosion resistance of sample wire clamping terminal 213

As can be seen from table 11, when the second transition layer material contains the commonly used metals of tin, nickel and zinc, the experimental results are inferior to those of the other metals, and the experimental results of the other metals exceed the standard value more, and the performance is more stable. Therefore, the inventor selects the material of the second transition layer to contain (or be) one or more of nickel, cadmium, manganese, zirconium, cobalt, tin titanium, chromium, gold, silver, zinc-tin-lead alloy, silver-antimony alloy, palladium-nickel alloy, graphite silver, graphene silver, hard silver and silver-gold-zirconium alloy. And more preferably, the second transition layer material is selected to contain (or is) one or more of cadmium, manganese, zirconium, cobalt, titanium, chromium, gold, silver, tin-lead alloy, silver-antimony alloy, palladium-nickel alloy, graphite silver, graphene silver, hard silver and silver-gold-zirconium alloy.

In one embodiment, the second flat wire core 212 has a hardness of 8HV to 105 HV.

In order to verify the influence of the hardness of the second flat wire core 212 on the peeling force of the second transition layer from the second flat wire core 212 and the bending torque of the second flat wire core 212 in the XY direction, the inventor selects a second flat wire core 212 sample piece with the same size and specification and different hardness to test the peeling force of the second transition layer of the second flat wire core 212 and the bending torque of the second flat wire core 212, and the test results are shown in table 12.

Test method of the peeling force of the second transition layer: and (3) using a universal tensile testing machine, fixing the second flat wire core 212 sample piece welded with the second transition layer on a stretching jig of the universal tensile testing machine, stretching at the speed of 50mm/min, and recording the final tensile value when the second transition layer is peeled off from the second flat wire core 212, wherein in the embodiment, the tensile value is greater than 900N and is a qualified value.

The torque test method of the second flat wire core 212 comprises the following steps: and (3) using a torque tester to test the torque value of the deformation of the second flat wire core 212 in the bending process when the second flat wire core 212 is bent by 90 degrees at the same radius and the same speed, wherein in the embodiment, the torque value is less than 30 N.m and is a qualified value.

Table 12: influence of hardness of the second flat wire core on peeling force of the electric energy switching layer and torque during bending

It can be seen from table 12 above that, when the hardness of the second flat wire core 212 is less than 8HV, the pulling force value when the second transition layer is peeled off from the second flat wire core 212 is less than the qualified value, at this moment, the second transition layer welded on the second flat wire core 212 is easily peeled off from the second flat wire core 212 under the action of external force, so that the protection on the second flat wire core 212 cannot be realized, and the function of the second flat wire core 212 fails, so that the purpose of electric energy transmission cannot be achieved, and a combustion accident caused by a short circuit can be caused in a serious case. When the hardness of second flat core 212 is for being greater than 105HV, because the hardness of second flat core 212 itself is very high, when second flat core 212 needs to bend, need bigger moment of torsion to make second flat core 212 warp, the value of moment of torsion does not satisfy the qualification value requirement this moment. Therefore, the inventors set the hardness of the second flat wire core 212 to be 8HV to 105 HV.

As can be seen from the data in table 12, when the hardness of the second flat wire core 212 is 10HV to 55HV, the tensile force value when the second transition layer is peeled off from the second flat wire core 212 and the torque value when the second flat wire core 212 is XY-bent are both in a good range, and therefore, the inventors prefer that the hardness of the second flat wire core 212 is 10HV to 55 HV.

In one embodiment, the front end of the wire clamping terminal 213 is provided with an open groove, and the distance of the open side of the groove is larger than that of the closed side of the groove. When the wire clamping terminal 213 is assembled and processed, there is an error, when the flat terminal 113 and the flat belt 11 are assembled, there is an assembly error, and at this time, there is a large assembly error when the flat terminal 113 and the wire clamping terminal 213 are assembled, and in order to enable the flat terminal 113 to be conveniently and accurately connected with the wire clamping terminal 213 by plugging, a chamfer needs to be provided at the end part on the side of the opening of the groove, and when the flat terminal 113 is inserted into the groove, a guiding effect is achieved.

In one embodiment, as shown in fig. 3 and 8, the wire clamping terminal 213 is sleeved with the clamping hoop 30, and the clamping hoop 30 is made of memory alloy. A memory alloy is a smart metal with memory, the microstructure of which has two relatively stable states, at high temperatures the alloy can be brought into any desired shape, at lower temperatures the alloy can be stretched, but if it is reheated it remembers its original shape and returns, the crystal structure of the memory alloy above and below its transformation temperature being different, but the temperature changes above and below the transformation temperature the memory alloy contracts or expands causing its morphology to change. In some embodiments, the memory alloy is a nickel titanium alloy.

In one embodiment, the transformation temperature of the memory alloy is set within the range of 40 ℃ to 70 ℃, and the clamping band 30 is in an expanded state in a state where the temperature of the clamping band 30 is lower than the transformation temperature; in a state where the temperature of the clip 30 is higher than the transformation temperature, the clip 30 is in a clamped state.

Generally, the transformation temperature is selected to be between 40 ℃ and 70 ℃, because if the transformation temperature is lower than 40 ℃, the ambient temperature of the wire clamping terminal 213 and the clip 30 can also reach approximately 40 ℃ under the condition of no conducting current, at this time, the clip 30 is in a clamping state, the strip-shaped groove of the wire clamping terminal 213 becomes small, the flat terminal 113 cannot be inserted into the wire clamping terminal 213, and the plugging structure of the flat terminal 113 and the wire clamping terminal 213 cannot be plugged, so that the work cannot be performed.

At room temperature, the flat terminal 113 and the wire clamping terminal 213 start to conduct electricity after being plugged, because the clamping hoop 30 is in an expanded state just after the plugging, the contact area between the flat terminal 113 and the wire clamping terminal 213 is small, the current is large, so that the temperature of the plugged wire clamping terminal 213 and the clamping hoop 30 starts to rise, if the metamorphic temperature is higher than 70 ℃, the temperature rise time of the clamping hoop 30 is long, the plugging structure of the flat terminal 113 and the wire clamping terminal 213 is in a large current state for a long time, electrical aging is easily caused, and in serious cases, the plugging structure of the flat terminal 113 and the wire clamping terminal 213 is overloaded and damaged, and unnecessary loss is caused.

Therefore, the transformation temperature of the memory alloy is generally set to be between 40 ℃ and 70 ℃.

The clip 30 has a memory function, when the temperature is lower than the abnormal temperature, the strip-shaped groove of the wire clamping terminal 213 is usually in an expanded state, and at the moment, the flat terminal 113 of the flat belt 11 can realize butt joint without insertion force, so that an operator can conveniently and easily carry out butt joint on the electrical appliance. When the wire clamping terminal 213 conducts current in operation, the temperature of the wire clamping terminal 213 gradually rises due to the effect of the resistor, when the temperature rises above the metamorphosis temperature, the clamping hoop 30 will contract radially, the contact area and the contact force of the strip-shaped groove of the wire clamping terminal 213 and the flat terminal 113 of the flat strip 11 are increased through the rise of the temperature, the contact reliability is improved, the operation is easier due to the omission of the requirement of the insertion force, and the work efficiency is improved.

In one embodiment, as shown in fig. 8, a clip 30 is sleeved on the wire clamping terminal 213, the clip 30 includes a sidewall 31 and an elastic unit 32 fixed on the sidewall, and the elastic unit 32 is connected to the wire clamping terminal 213. The clamp 30 applies pressure to the wire clamping terminal 213 through the elastic unit 32 arranged on the inner wall of the side wall, so that the strip-shaped groove of the wire clamping terminal 213 can clamp the flat terminal 113 of the flat belt 11, the contact area between the wire clamping terminal 213 and the flat terminal 113 is ensured, the contact resistance is reduced, and the conductivity is improved.

The clamp 30 is disposed to ensure that the wire clamping terminal 213 is tightly connected to the flat terminal 113.

Further, the force applied to the pinch terminal 213 by the elastic unit 32 ranges from 3N to 200N.

In order to verify the influence of the pressure applied by the elastic unit 32 to the flat terminal 213 after the flat terminal 113 with larger eccentricity is plugged and the plugging and unplugging conditions, the inventor selects the flat terminal 113 and the wire clamping terminal 213 with the same size and specification, applies different pressures to the flat terminal 213 by the elastic unit 32, then selects the flat terminal 113 and the wire clamping terminal 213 with the same eccentricity for plugging and unplugging, respectively tests the contact resistance between the plugged terminals, tests the successful plugging proportion of the flat terminal 113 in multiple plugging and unplugging experiments, and the test results are shown in table 13.

The contact resistance test method comprises the following steps: using the micro resistance meter, the measuring end of the micro resistance meter is placed on the flat terminal 113 and the wire clamping terminal 213 at the same position for each measurement, and then the contact resistance reading on the micro resistance meter is read. In this example, a contact resistance of more than 1m Ω is not acceptable.

The method for testing the plug-in success rate comprises the following steps: the amount of pressure applied to the terminals 213 by each spring element 32 is compared to 100 flat terminals 113 of the same eccentricity, and the number of successful insertions is recorded and multiplied by 100% compared to the total number. In the present embodiment, the success rate of the pair insertion is less than 95%.

Table 13: effect of different pressures on contact resistance and on insertion success

As can be seen from table 13, when the pressure applied to the pinch terminal 213 by the elastic unit 32 is less than 3N, although the success rate of the insertion is acceptable, the contact resistance between the flat terminal 113 and the pinch terminal 213 is greater than 1m Ω, and the contact resistance is too large; when the pressing force of the elastic unit 32 applied to the crimp terminal 213 is greater than 200N, the insertion rate is less than 95%, and the application requirement cannot be satisfied, and therefore, the inventors set the pressing force of the elastic unit 32 applied to the crimp terminal 213 to 3N-200N.

In one embodiment, the elastic unit 32 is an elastic rubber body, a spring or a metal spring. The elastic unit 32 may be an elastic rubber body, and ensures a pressure applied to the binding post 213 by virtue of an elastic force compressed by the elastic rubber body; the elastic unit 32 may be a compression spring, which guarantees a pressure applied to the wire clamping terminal 213 by virtue of an elastic force compressed by the compression spring; the elastic unit 32 may also be a metal elastic sheet, which is integrally formed with the clip 30, and may be a single-end elastic sheet with one end fixed and one free end, or a double-end elastic sheet with two ends fixed and a middle protrusion, which is ensured to apply a pressure on the binding post 213 by the elastic force of the metal elastic sheet.

In one embodiment, as shown in fig. 10 and 13, the female connection mechanism 20 has a high voltage interlock structure 23, and the high voltage interlock structure 23 is electrically connected to the interlock connector 13 to form a circuit. The high voltage interlock structure 23 is electrically connected to the interlock connector 13 to form a circuit. The high-voltage interlocking is a safety design method for monitoring the integrity of a high-voltage circuit by using a low-voltage signal, and the high-voltage interlocking is used for monitoring the accidental disconnection of the high-voltage circuit so as to avoid the damage to an automobile caused by sudden loss of power. In the embodiment, the high-voltage interlock, one end of the interlock connector 13 is provided with two opposite pins, and two U-shaped or V-shaped low-voltage loops are electrically connected with the pins, and the other end of the interlock connector 13 is arranged in the female end connecting mechanism 20 and is connected with two plug terminals of the low-voltage loop, and the plug terminal of the high-voltage interlock structure 23 is connected with the opposite pins of the interlock connector 13 in a matching manner to form a low-voltage monitoring loop.

The embedded high-voltage interlocking structure replaces the prior assembled high-voltage interlocking, is fixed in the connecting mechanism in an integrated injection molding mode, does not need to be assembled, reduces the cost and completely meets the high-voltage interlocking effect.

In one embodiment, the female connection mechanism 20 and/or the male connection mechanism 10 has a sealing structure 40, and the sealing structure 40 can seal the flat terminal 113, the wire clamping terminal 213, and a part of the flat belt 11 and the double flat belts 21 in the connection mechanism, so as to prevent external dust and water from damaging and corroding the internal conductive mechanism, and greatly prolong the service life of the connection mechanism.

In one embodiment, the seal structure 40 is over-molded on the female housing 22 and/or the male housing 12, as shown in FIG. 13. The sealing structure 40 of the connecting mechanism is not provided with an independent sealing ring, but adopts the secondary injection molding sealing structure 40 instead of the traditional sealing ring, can be directly molded on the connecting mechanism, and has better injection molding combination property and reduced cost.

Further, the sealing structure 40 is made of rubber, soft glue or silica gel. The materials are selected for use, the materials can be heated and melted by an injection molding machine and are molded in a corresponding injection mold, the processing is simple, the adhesion is firm, the service life of the sealing structure can be greatly prolonged, in addition, the materials have good elasticity, the materials can be extruded and deformed during the assembly of the connecting mechanism, the good sealing performance is realized in the filled gap, the materials are water-resistant and oil-resistant, and the sealing structure can be ensured to have longer service life and safe sealing performance.

The maximum clearance of the sealing structure 40 with the male end connection 10 and/or with the female end connection 20 is less than 520 nm.

In order to verify the influence of the size of the gap between each sealing structure 40 and the adjacent device on the sealing grade, the inventor tests the sealing device by using a dry air method, controls the difference between the internal pressure and the external pressure of a tested sample by vacuumizing or air pressurization, and reduces the difference between the internal pressure and the external pressure if leakage exists. The tightness can be detected by detecting a change in air pressure. The detection medium is dry air, is non-toxic and harmless, does not damage the detected product, and simultaneously has clean and tidy detection environment. Taking the example of detecting that the sealing structure 40 is disposed on the male end connecting mechanism 10, the inventor completely seals other joints after the male end connecting mechanism 10 and the female end connecting mechanism 20 are connected, selects the sealing structures 40 with different sealing degrees, and extracts the dry air part in the sealing structure 40, so that the air pressure in the sealing structure 40 is lower than the external air pressure, continuously detects the internal air pressure of the sealing structure 40, finds that the air pressure is not qualified when increasing, and the test structure is shown in table 14.

Table 14: maximum clearance of seal 40 from male end coupling 10 and/or female end coupling 20 affects air pressure variations

Maximum gap (nm)	530	520	500	450	400	350	300	280	260
										Whether the air pressure changes	Is that	Whether or not	Whether or not	Whether or not	Whether or not	Whether or not	Whether or not	Whether or not	Whether or not

As can be seen from table 14, when the maximum clearance between the seal structure 40 and the male end connection 10 and/or the female end connection 20 exceeds 520nm, the gas pressure changes, meaning that gas enters the seal structure 40 and the test fails. The inventors chose that the maximum clearance of the sealing structure 40 with the male end connection 10 and/or the female end connection is not less than 520 nm.

In one embodiment, the female end connection 20 has at least one temperature measurement structure for measuring the temperature of the double flat band 21 and/or the wire clamp terminal 213. The temperature measuring structure can have a certain distance with the double flat belts 21 and/or the wire clamping terminals 213, the heat radiation of the double flat belts 21 and/or the wire clamping terminals 213 is transmitted to the temperature measuring structure, and then the temperature measuring structure measures the temperature of the double flat belts 21 and/or the wire clamping terminals 213, or the temperature measuring structure comprises a conducting element, the conducting element is attached to the double flat belts 21 and/or the wire clamping terminals 213, and the temperature of the double flat belts 21 and/or the wire clamping terminals 213 is measured through the temperature transmitted by the conducting element. And communicated to the control system for regulating the current through the double ribbonized band 21 and/or the crimp terminal 213, thereby regulating the temperature of the female end connection 20.

Further, the female end connecting mechanism 20 has at least one temperature measuring structure, and the temperature measuring structure is attached to the double flat belt 21 and/or the wire clamping terminal 213 and is used for measuring the temperature of the double flat belt 21 and/or the wire clamping terminal 213. The temperature measuring structure is a temperature sensor, the temperature measuring structure is directly attached to the double flat belts 21 and/or the wire clamping terminals 213, the actual temperatures of the double flat belts 21 and/or the wire clamping terminals 213 can be directly obtained, the actual temperatures of the double flat belts 21 and/or the wire clamping terminals 213 are not required to be obtained through calculation, the structure is simple, and the temperature measurement is more accurate.

Further, the female end connecting mechanism 20 has at least one temperature measuring structure, and the temperature measuring structure is located between the two double flat belts 21 and is used for measuring the temperature of the double flat belts 21. The temperature measurement structure is placed between the two double flat belts 21, heat conducted by the two double flat belts 21 can be obtained at the same time, the heat productivity of the two double flat belts 21 can be balanced, the number of the temperature measurement structure is saved, the highest temperature of the two double flat belts 21 can be directly obtained, and a good effect on temperature control of the double flat belts 21 can be achieved.

In one embodiment, male end connection 10 has at least one temperature measurement structure for measuring the temperature of ribbon 11 and/or ribbon terminals 113. The temperature measuring structure can have a certain distance with the flat belt 11 and/or the flat terminal 113, the heat radiation of the flat belt 11 and/or the flat terminal 113 is transmitted to the temperature measuring structure, and then the temperature measuring mechanism measures the temperature of the flat belt 11 and/or the flat terminal 113, or the temperature measuring structure comprises a conducting element, the conducting element is attached to the flat belt 11 and/or the flat terminal 113, and the temperature of the flat belt 11 and/or the flat terminal 113 is measured through the temperature transmitted by the conducting element. And communicated to a control system for regulating the current through the straps 11 and/or the spade terminals 113, thereby regulating the temperature of the male end connection mechanism 10.

In one embodiment, male end connection 10 has at least one temperature measurement structure attached to ribbon 11 and/or ribbon terminals 113 for measuring the temperature of ribbon 11 and/or ribbon terminals 113. The temperature measuring structure is a temperature sensor, is directly attached to the flat belt 11 and/or the flat terminal 113, can directly obtain the actual temperature of the flat belt 11 and/or the flat terminal 113, does not need to obtain the actual temperature of the flat belt 11 and/or the flat terminal 113 through calculation, and is simple in structure and more accurate in temperature measurement.

In one embodiment, the male end connection 10 has at least one temperature measuring structure located between the two straps 11 for measuring the temperature of the straps 11. The temperature measurement structure is placed between the two flat belts 11, can obtain the heat conducted by the two flat belts 11 at the same time, can balance the heat productivity of the two flat belts 11, not only saves the number of the temperature measurement structure, but also can directly obtain the highest temperature of the two flat belts 11, and can play a good role in controlling the temperature of the flat belts 11.

The temperature measuring structure can be a temperature sensor which can be an NTC temperature sensor or a PTC temperature sensor, and the temperature of the male end connecting mechanism 10 or the female end connecting mechanism 20 can be timely and accurately monitored.

The temperature sensor is an NTC temperature sensor or a PTC temperature sensor. The two temperature sensors have the advantages of small volume and capability of measuring gaps which cannot be measured by other thermometers; the use is convenient, and the resistance value can be randomly selected from 0.1-100 k omega; the cable connector is easy to process into a complex shape, can be produced in large batch, has good stability and strong overload capacity, and is suitable for a product with small requirement on volume and stable performance, such as an adapter.

In one embodiment, the male and

female connection mechanisms

10, 20 are connected by one or more of an adhesive connection, a magnetic attraction connection, a bayonet connection, a plug connection, a snap-fit connection, a tie-up connection, a threaded connection, a rivet connection, and a welded connection.

In a first possible technical solution, an adhesive structure may be adopted, for example, adhesive layers are respectively disposed on the surfaces to be spliced of the male end connection mechanism 10 and the female end connection mechanism 20, and the two are fixedly connected by adhesion.

In the second possible technical solution, a magnetic attraction structure may be adopted, for example, magnetic attraction members are also disposed on the surfaces to be spliced of the male end connecting mechanism 10 and the female end connecting mechanism 20, and the connection is convenient and fast.

In a third possible technical solution, a plug-in structure may be adopted, a plug is disposed on a housing of the male end connecting mechanism 10, a slot is disposed on a surface of a housing of the female end connecting mechanism 20, and the plug is inserted into the slot and then fixedly connected, so that the male end connecting mechanism 10 and the female end connecting mechanism 20 are fixedly connected, and the male end connecting mechanism 10 and the female end connecting mechanism 20 are connected.

In a fourth possible technical solution, a clamping structure may be adopted, for example, a buckle is arranged on the male end shielding shell 14 of the male end connecting mechanism 10, a clamping groove is arranged on the female end of the female end connecting mechanism 20, and the buckle and the clamping groove are fixedly connected after being assembled, so that the male end connecting mechanism 10 and the female end connecting mechanism 20 are fixedly connected.

In a fifth possible technical solution, a bolt connection structure may be adopted, where the bolt connection structure includes a bolt and a nut, the bolt is fixed on the surface to be spliced of the male end connection mechanism 10, and the nut is arranged on the surface to be spliced of the female end connection mechanism 20 and can rotate; after the bolt and the nut are screwed and tightened, the surfaces to be spliced of the male end connecting mechanism 10 and the female end connecting mechanism 20 are fixedly connected. The bolt connection structure adopts a bolt and a nut with the minimum M3, and the torque when the bolt connection structure is tightened is minimum 0.2 N.m.

In a sixth possible technical solution, a riveting structure may be adopted, where the riveting structure includes a rivet and a fixing hole, the fixing hole is disposed on the surface to be spliced of the male end connection mechanism 10 and the female end connection mechanism 20, the rivet passes through the fixing hole, and deforms the end through which the rivet passes, so that the fixing hole is tightened, and the surface to be spliced of the male end connection mechanism 10 and the female end connection mechanism 20 is fixedly connected.

In a seventh possible technical solution, a welding structure may be adopted, for example, welding pieces are disposed on the surfaces to be spliced of the male end connection mechanism 10 and the female end connection mechanism 20, and the welding pieces are melted and connected together by using a welding machine, so that the surfaces to be spliced of the male end connection mechanism 10 and the female end connection mechanism 20 are fixedly connected. The welding machine includes a heat fusion welding machine and an ultrasonic welding machine.

In an eighth possible technical solution, a bundling structure may be adopted, where the bundling structure includes a bundling piece, a groove is disposed on the surface of the male end connecting mechanism 10 and the surface of the female end connecting mechanism 20, and the bundling piece is used to bundle the surfaces to be spliced of the male end connecting mechanism 10 and the female end connecting mechanism 20 together at the position of the groove, so as to fixedly connect the splicing surfaces of the male end connecting mechanism 10 and the female end connecting mechanism 20. The strapping includes straps, pipe clamps, hook locks, and the like.

In a ninth possible technical solution, a locking structure may be adopted, where the locking structure includes a locking element, the locking element is disposed at a position adjacent to a surface to be spliced of the male end connecting mechanism 10 and the female end connecting mechanism 20 or on the surface to be spliced, and the splicing surface of the male end connecting mechanism 10 and the splicing surface of the female end connecting mechanism 20 are fixedly connected through the locking element.

In one embodiment, the insertion force between the flat terminal 113 and the wire clamping terminal 213 is between 3N and 150N.

Furthermore, the plugging force between the flat terminal 113 and the wire clamping terminal 213 is between 10N and 95N.

In order to verify the influence of the plugging force between the flat terminal 113 and the wire clamping terminal 213 on the contact resistance between the flat terminal 113 and the wire clamping terminal 213 and the plugging condition, the inventor selects the flat terminal 113 and the wire clamping terminal 213 with the same shape and size, designs the plugging force between the flat terminal 113 and the wire clamping terminal 213 to be different plugging forces, and observes the contact resistance between the flat terminal 113 and the wire clamping terminal 213 and the condition after multiple times of plugging.

The contact resistance is detected by measuring the resistance at the contact position between the flat terminal 113 and the wire clamping terminal 213 using a micro resistance measuring instrument, and reading the value from the micro resistance measuring instrument as the contact resistance between the flat terminal 113 and the wire clamping terminal 213, and in this embodiment, the contact resistance is smaller than 50 μ Ω, which is a desirable value.

The test mode of the mutual insertion condition of the flat terminal 113 and the wire clamping terminal 213 is to perform mutual insertion of the flat terminal 113 and the wire clamping terminal 213 for 50 times, observe the times of dropping and incapability of plugging after plugging, wherein the dropping time requirement after plugging is less than 3 times, and the incapability of plugging is less than 5 times.

Table 15, effect of insertion force between different flat terminals 113 and the wire clamping terminal 213 on contact resistance and insertion condition:

as can be seen from table 15 above, when the insertion force between the flat terminal 113 and the wire clamping terminal 213 is smaller than 3N, the bonding force between the flat terminal 113 and the wire clamping terminal 213 is too small, the contact resistance between the flat terminal and the wire clamping terminal is higher than the ideal value, and the number of times of dropping after insertion exceeds 3 times, which is a failure state. When the insertion force between the flat terminal 113 and the wire clamping terminal 213 is larger than 150N, the number of times the flat terminal 113 and the wire clamping terminal 213 cannot be inserted and removed is larger than 5 or more, and the insertion force between the flat terminal 113 and the wire clamping terminal 213 is set to be 3N to 150N.

As can be seen from table 15 above, when the insertion force between the flat terminal 113 and the wire clamping terminal 213 is between 10N and 95N, the contact resistance value is within the ideal value range without dropping after insertion and removal or without being unable to be inserted and removed, and therefore, the inventors set that the insertion force between the flat terminal 113 and the wire clamping terminal 213 is preferably between 10N and 95N.

In one embodiment, the contact resistance between the flat terminal 113 and the pinch terminal 213 is less than 9m Ω.

Further, the contact resistance between the flat terminal 113 and the pinch terminal 213 is less than 1m Ω.

Generally, a large current needs to be conducted between the flat terminal 113 and the wire clamping terminal 213, if the contact resistance between the flat terminal 113 and the wire clamping terminal 213 is greater than 9m Ω, a large temperature rise occurs at the contact position, and the temperature becomes higher and higher with the increase of time, so that the temperature between the flat terminal 113 and the wire clamping terminal 213 becomes too high, which may cause internal stress between the first transition layer and the flat terminal 113, and between the second transition layer and the wire clamping terminal 213, which may cause the falling off of the first transition layer and the second transition layer, and may not achieve the protection effect, because the mechanical deformation is asynchronous between the flat terminal 113 and the wire clamping terminal 213, and the material is different between the first transition layer and the flat terminal 113, and the thermal expansion rate is different between the second transition layer and the wire clamping terminal 213. Secondly, the excessive temperature of the flat terminal 113 and the wire clamping terminal 232, or the excessive temperature of the insulation layer conducted to the flat belt 11 and the insulation layer of the double flat belts 21, causes the melting of the corresponding insulation layer, and cannot play the role of insulation protection, and may cause the damage of the connection structure due to the short circuit of the line, even the safety accidents such as burning, etc. in severe cases. Therefore, the inventors set the contact resistance between the flat terminal 113 and the pinch terminal 213 to be less than 9m Ω.

In order to verify the influence of the contact resistance between the flat terminal 113 and the wire clamping terminal 213 on the temperature rise and conductivity of the connection mechanism, the inventor selects the same flat terminal 113 and wire clamping terminal 213 with different contact resistances, and tests the conductivity and temperature rise of the plug-in structure,

in the conductivity test, after the flat terminal 113 and the wire clamping terminal 213 are inserted into each other, and the insertion structure is energized, the conductivity of the corresponding insertion position is detected, and in this embodiment, the conductivity is greater than 99% as an ideal value.

The temperature rise test is to apply the same current to the plug-in structure, detect the temperatures of the same positions of the flat terminal 113 and the wire clamping terminal 213 before and after applying the current and after stabilizing the temperature in a closed environment, and take the absolute value of the difference. In this example, a temperature rise greater than 50K is considered unacceptable.

Table 16, the effect of the contact resistance between the different flat terminals 113 and the wire clamping terminal 213 on the conductivity and temperature rise:

as can be seen from the above table 16, when the contact resistance between the flat terminal 113 and the wire clamping terminal 213 is greater than 9m Ω, the temperature rise of the plugging structure exceeds 50K, and meanwhile, the electrical conductivity of the plugging structure is also less than 99%, which does not meet the standard requirement. Therefore, the inventors set the contact resistance between the flat terminal 113 and the pinch terminal 213 to be less than 9m Ω.

Preferably, when the contact resistance between the flat terminal 113 and the wire clamping terminal 213 is less than 1m Ω, the temperature rise of the plugging structure does not exceed 20K, the temperature rise value is small, and in addition, the conductivity of the plugging structure reaches 99.9%, and the conductive effect is good, so the inventor prefers that the contact resistance between the flat terminal 113 and the wire clamping terminal 213 is less than 1m Ω.

In one embodiment, the number of plugging and unplugging between the male end connecting mechanism 10 and the female end connecting mechanism 20 is greater than or equal to 9, when the flat belt type connecting mechanism is assembled with the electric device, the male end connecting mechanism 10 and the female end connecting mechanism 20 need to be assembled together, and then maintenance and assembly disassembly are performed, and plugging and unplugging may be performed after the male end connecting mechanism 10 and the female end connecting mechanism 20 are separated, so the number of plugging and unplugging between the male end connecting mechanism 10 and the female end connecting mechanism 20 cannot be less than 9, if the number of plugging and unplugging is less than 9, the male end connecting mechanism 10 or the female end connecting mechanism 20 may be damaged in a certain disassembling and maintaining process, and cannot play a role together with current, the whole connecting mechanism including the wire harness needs to be completely replaced, not only the maintenance time is consumed, but also the maintenance cost is increased, therefore, no matter the material selection of the male end connecting mechanism 10 and the female end connecting mechanism 20 is performed, the design of the plugging mechanism, the locking mechanism and the sealing mechanism between the male end connecting mechanism 10 and the female end connecting mechanism 20 can meet the use requirement of the connecting mechanism after at least 9 times of disassembly and assembly.

In one embodiment, the male end connection mechanism has a weight of 305g or less. As shown in fig. 1, the male end connector is located above the connection mechanism and is fixedly inserted into the female end connection mechanism 20, when the weight of the male end connection mechanism 10 is too large, the gravity received by the female end connection mechanism 20 is also large, and under the condition of vibration of the electric device, the whole connection mechanism can vibrate along with the male end connection mechanism 10, due to the reason of inertia, the male end connection mechanism 10 can vibrate greatly and generate abnormal sound, and the abnormal sound is not allowed in the use process of the electric device.

In order to verify the influence of the weight of the male end connecting mechanism 10 on the abnormal sound of the connecting mechanism, the inventor adopted the same female end connecting mechanism 20, assembled sample pieces of the male end connecting mechanism 10 with different weights, installed the assembled sample pieces on a vibration test bench, and performed a vibration test to observe whether the abnormal sound of the male end connecting mechanism 10 occurs during the vibration test, and the test results are shown in table 17.

TABLE 17 influence of weight of male end coupling mechanism 10 on the coupling mechanism rattle

Weight (g)	265	275	285	295	305	315	325	335	345
										Whether abnormal sound is present or not	Whether or not	Whether or not	Whether or not	Whether or not	Whether or not	Is that	Is that	Is that	Is that

As can be seen from table 17, when the weight of the male end connection mechanism 10 is greater than 305g, the male end connection mechanism 10 generates abnormal noise during the vibration test, and the test is failed. The inventor chooses the male end connection mechanism 10 to have a weight of 305g or less.

In one embodiment, the height of the male end connection mechanism along the plugging direction is less than or equal to 208 mm. After the male end connection mechanism 10 and the female end connection mechanism 20 are assembled together, the male end connection mechanism needs to be installed in an electric device, but in general, the reserved space of the electric device is small, and if the male end connection mechanism 10 is high, firstly, the male end connection mechanism cannot be installed in the electric device, secondly, raw materials are wasted, and therefore, the male end connection mechanism 10 needs to be lower than a certain height in design.

In order to verify the influence of the height of the male end connecting mechanism 10 along the plugging direction on the installation condition of the connecting mechanism, the inventor adopted the same female end connecting mechanism 20, assembled and installed samples of the male end connecting mechanism 10 with different heights along the plugging direction on the electric device, and observed whether the male end connecting mechanism 10 interferes with other parts of the electric device in the installation process, and the test results are shown in table 18.

TABLE 18 influence of height of male end connection 10 in plugging direction on connection installation

Height (mm)	168	178	188	198	208	218	228	238	248
										Whether or not to interfere	Whether or not	Whether or not	Whether or not	Whether or not	Whether or not	Is that	Is that	Is that	Is that

As can be seen from table 18, when the height of the male-end connection mechanism 10 in the inserting/extracting direction is greater than 208mm, the male-end connection mechanism cannot be mounted in the specified position of the electric device, and the test is not qualified. Therefore, the height of the male end connecting mechanism 10 along the plugging direction is less than or equal to 208 mm.

The utility model also provides an electric energy transmission device contains foretell bandlet formula coupling mechanism.

The utility model also provides a motor vehicle contains foretell bandlet formula coupling mechanism and above-mentioned electric energy transmission device.

The utility model discloses a bandlet formula coupling mechanism sets up injection moulding's public end shell 12 and female end shell 22, and processing is simple, and the cost is lower, can directly mould plastics and carry out the insulation among bandlet 11, can reduce bandlet 11's installation cost to can be multiple shape with bandlet 11 front end according to the demand shaping, and need not consider the problem of assembly, save manufacturing procedure, reduce the processing cost.

The utility model discloses a bandlet formula coupling mechanism, 11 range upon range of settings of bandlet to set up appropriate interval, the electromagnetic interference who causes other spare parts after can the 11 circular telegrams of effectual reduction bandlet, thereby reach cancellation high-pressure charging wire harness shielding layer structure, reach the demand that reduces cost, reduce weight.

The clamp 30 is adopted to clamp and fix the wire clamping terminal 213, so that the pressure applied to the flat terminal 113 by the wire clamping terminal 213 can be increased, the phenomenon that the clamping force of the wire clamping terminal 213 is reduced, the contact resistance between the wire clamping terminal 213 and the flat terminal 113 is increased and the conduction current is increased due to long-time use is avoided, and the temperature of the wire clamping terminal 213 and the flat terminal 113 is increased, so that a burning accident can be caused in a serious case.

The embedded high-voltage interlocking structure 23 replaces the prior assembled high-voltage interlocking, is fixed in the connecting mechanism in an integrated injection molding mode, does not need to be assembled, reduces the cost and completely meets the high-voltage interlocking effect.

The sealing structure of the connecting mechanism is not provided with an independent sealing ring, but adopts a secondary injection molding sealing structure to replace the traditional sealing ring, can be directly molded on the connecting mechanism, and has better injection molding combination property and reduced cost.

Adopt temperature measurement mechanism, can monitor the terminal temperature of coupling mechanism inside alone, avoid because the temperature sensor of other positions damages, and can't monitor coupling mechanism's temperature.

The above description is only for the embodiments of the present invention, and those skilled in the art can make various changes or modifications to the embodiments of the present invention according to the disclosure of the application document without departing from the spirit and scope of the present invention.

Claims

1. The utility model provides a bandlet formula coupling mechanism, includes public end coupling mechanism and female end coupling mechanism, its characterized in that, public end coupling mechanism include bandlet, bandlet terminal and with the bandlet with the public end shell that bandlet terminal is connected, female end coupling mechanism include two bandlets, double-layered line terminal and with two bandlets with the female end shell that double-layered line terminal is connected, public end coupling mechanism with female end coupling mechanism passes through bandlet terminal with double-layered line terminal electricity is connected, public end shell with female end shell is connected, forms bandlet coupling mechanism.

2. The ribbonized connection according to claim 1, wherein the ribbonized cross section has an aspect ratio of 1:1 to 120: 1.

3. The ribbonized connection according to claim 1, wherein the ratio of length to width of the double ribbonized cross section is from 1:1 to 120: 1.

4. The strap connector mechanism of claim 1 wherein said at least two straps are stacked one on top of the other and said male housing is integrally injection molded between and/or peripherally surrounding at least some of said straps and/or at least some of said strap terminals to form an insulating structure.

5. The ribbon-type connection of claim 1, wherein the ribbon includes a first flat core and a first outer insulation layer, the first outer insulation layer partially stripped to expose the first flat core, the first outer insulation layer terminating within or abutting the male end housing.

6. The ribbon coupling of claim 1, wherein the ribbon comprises a first flat wire core having a hardness of 8HV to 105 HV.

7. The ribbon coupling mechanism of claim 1, wherein there are at least two of said ribbons, said ribbons being stacked one on top of the other, said ribbons containing first flat wire cores, the vertical distance between said first flat wire cores being 27cm or less.

8. The ribbon-type connecting mechanism of claim 1, wherein the number of the ribbons is at least two, the ribbons are stacked one on top of the other, the ribbons include first ribbon cores, and the vertical distance between the two first ribbon cores is not more than 7 cm.

9. The ribbon-type connecting mechanism according to claim 1, wherein the number of the ribbons is at least two, the ribbons are stacked one on top of the other, the ribbon includes first ribbon cores, and the overlapping ratio of the two first ribbon cores in the stacking direction is 40% to 100%.

10. The ribbon connection of claim 1, wherein the ribbon includes a first flat wire core, the first flat wire core having a front end connected to the flat terminal, the male housing encasing at least a portion of the flat terminal.

11. The ribbon coupling mechanism of claim 1, wherein the ribbon includes a first flat wire core, the first flat wire core being of unitary construction with the ribbon terminal.

12. The ribbon connector of claim 1, wherein the ribbon terminal protrudes at least partially out of the male end housing or the male end housing has a receiving cavity and the ribbon terminal protrudes at least partially out of the bottom surface of the receiving cavity but not beyond the male end housing.

13. The ribbon-type connection mechanism of claim 1, wherein the ribbon comprises a first ribbon wire core, a first bent portion is included between the first ribbon wire core and the ribbon terminal, and an angle of the first bent portion is 0 ° to 180 °.

14. The ribbon connection of claim 1, wherein the ribbon terminal is at least partially provided with a first transition layer.

15. The ribbonized connection according to claim 14, wherein the first transition layer has a thickness of 0.3 μm to 3000 μm.

16. The ribbon coupling of claim 14, wherein the first transition layer has a thickness of 2.5 μ ι η to 1000 μ ι η.

17. The ribbon connection of claim 1, wherein the ends of the ribbon terminals are chamfered.

18. The ribbonized connection according to claim 1, wherein the male end connection includes an interlocking connector that is at least partially integrally molded in the male end housing.

19. The strap connector mechanism of claim 1 wherein said double straps are at least two, said double straps being stacked one on top of the other, said female housing being integrally injection molded between and/or peripherally surrounding at least some of said double straps and/or at least some of said wire clamping terminals to form an insulating structure.

20. The ribbon coupling mechanism of claim 1, wherein the double ribbon includes a second ribbon core and a second outer insulation layer, the second outer insulation layer partially stripped to expose the second ribbon core, the second outer insulation layer having an end portion within or abutting the female end housing.

21. The ribbon connection of claim 1, wherein the double ribbon comprises a second flat wire core having a hardness of 8HV-105 HV.

22. The ribbon coupling mechanism of claim 1, wherein there are at least two of the double ribbons, the double ribbons being stacked one on top of the other, the double ribbons including a second ribbon core, the perpendicular distance between the two second ribbon cores being less than or equal to 27 cm.

23. The ribbon coupling of claim 1, wherein there are at least two of said double ribbons, said double ribbons being stacked one on top of the other, said double ribbons containing second flat wire cores, the vertical distance between said two second flat wire cores being 7cm or less.

24. The ribbon-type connection mechanism of claim 1, wherein the number of the double ribbons is at least two, the double ribbons are stacked one on top of the other, the double ribbons include second ribbon cores, and the overlapping ratio of the two second ribbon cores in the stacking direction is 40% to 100%.

25. The ribbon coupling of claim 1, wherein the double ribbon comprises a second flat wire core, the second flat wire core being connected by two flat conductors in an overlapping relationship.

26. The ribbon-type connection mechanism of claim 1, wherein the double ribbon comprises a second flat wire core, the front end of the second flat wire core is connected with the wire clamping terminal, and the female end housing covers at least a portion of the wire clamping terminal.

27. The ribbon coupling mechanism of claim 1, wherein the double ribbon comprises a second ribbon core, the second ribbon core being integral with the wire clamping terminal.

28. The strap connector of claim 1 wherein said wire gripping terminal at least partially protrudes from an outer wall of said female housing or said female housing is provided with an open boss and said wire gripping terminal is at least partially disposed within said open boss.

29. The ribbon-type connection mechanism of claim 1, wherein the double ribbon comprises a second flat wire core, a second bending portion is included between the front end of the second flat wire core and the wire clamping terminal, and the angle of the second bending portion is 0-180 °.

30. The ribbon connection of claim 1, wherein at least a portion of the surface of the wire clamp terminal is provided with a second transition layer.

31. The ribbon coupling of claim 30, wherein the second transition layer has a thickness of 0.3 μ ι η to 3000 μ ι η.

32. The ribbon coupling of claim 30, wherein the second transition layer has a thickness of 2.5 μ ι η to 1000 μ ι η.

33. The ribbon coupling of claim 1, wherein the front end of the wire clamping terminal is provided with an open groove, and the distance of the open side of the groove is greater than the distance of the closed side of the groove.

34. The flat belt type connecting mechanism according to claim 1, wherein a clip is sleeved on the wire clamping terminal, and the material of the clip is memory alloy.

35. The ribbon coupling mechanism of claim 34, wherein the memory alloy transformation temperature is set within a range of 40 ℃ to 70 ℃, and the clip is in an expanded state in a state where the temperature of the clip is below the transformation temperature; and under the condition that the temperature of the clamp is higher than the transformation temperature, the clamp is in a clamping state.

36. The flat belt type connecting mechanism according to claim 1, wherein a clip is sleeved on the wire clamping terminal, the clip comprises a side wall and an elastic unit fixed on the side wall, and the elastic unit is connected with the wire clamping terminal.

37. The ribbon coupling of claim 36, wherein the force applied to the wire clamp terminal by the resilient unit is in the range of 3N-200N.

38. The strap connection according to claim 36 wherein the resilient unit is an elastic rubber body, a spring or a metal spring.

39. The ribbonized connection according to claim 18, wherein the female connection has a high voltage interlock that electrically connects with the interlock connector to form a circuit.

40. The ribbon coupling of claim 1, wherein the female end coupling and/or the male end coupling have a sealing structure.

41. The strap connector mechanism of claim 40 wherein said sealing structure is over-molded on said female end housing and/or said male end housing.

42. The ribbonized connection according to claim 1, wherein the female connection has at least one temperature measurement structure for measuring the temperature of the double ribbonized and/or the wire clamp terminal.

43. The strap connection according to claim 1 wherein said female connection has at least one temperature measurement structure attached to said double straps and/or said wire clamp terminals for measuring the temperature of said double straps and/or said wire clamp terminals.

44. The strap connector of claim 1 wherein said female end connector has at least one temperature measuring structure, said double straps being at least two, said temperature measuring structure being positioned between said double straps for measuring the temperature of said double straps.

45. The ribbonized connection according to claim 1, wherein the male connection has at least one temperature measurement structure for measuring the temperature of the ribbonized band and/or the ribbonized terminals.

46. The strap connection mechanism of claim 1 wherein said male end connection mechanism has at least one temperature measurement structure attached to said strap and/or said flat terminal for measuring the temperature of said strap and/or said flat terminal.

47. The strap connector of claim 1 wherein said male end connector has at least one temperature measuring structure, said at least two straps, said temperature measuring structure being located between said straps for measuring the temperature of said straps.

48. The strap connector of claim 1 wherein said male connector and said female connector are connected by one or more of an adhesive connection, a magnetic attachment connection, a bayonet connection, a plug-in connection, a snap-lock connection, a strap connection, a threaded connection, a rivet connection, and a welded connection.

49. The ribbon coupling of claim 1, wherein the mating force between the ribbon terminal and the wire clamp terminal is between 3N and 150N.

50. The ribbon connector of claim 1, wherein the mating force between the ribbon terminal and the wire clamp terminal is between 10N and 130N.

51. The ribbon connection of claim 1, wherein the contact resistance between the ribbon terminal and the wire clamp terminal is less than 9m Ω.

52. The ribbon connection of claim 1, wherein the contact resistance between the ribbon terminal and the wire clamp terminal is less than 1m Ω.

53. The ribbonized connection according to claim 1, wherein the number of insertions and removals between the male connection and the female connection is equal to or greater than 9.

54. The flat belt connection of claim 1, wherein the male end connection has a weight of 305g or less.

55. The ribbonized connection according to claim 1, wherein the male connection is 208mm or less in height in the plugging direction.

56. An electrical energy transfer device comprising a flat-belt connection according to any of claims 1 to 55.

57. A motor vehicle comprising a flat belt connection according to any of claims 1 to 55.