Contactor, charging system of vehicle, vehicle and charging pile

Abstract

The application discloses a contactor, a charging and power supply system of a vehicle, the vehicle and a charging pile. The contactor comprises: at least two wiring terminal groups, each wiring terminal group comprising a first wiring terminal and a second wiring terminal; at least two main joint conductors, each main joint conductor being connected with a corresponding first wiring terminal; a pre-charging joint conductor and a pre-charging resistor, the pre-charging joint conductor and the pre-charging resistor being connected with the first wiring terminal and the second wiring terminal of one wiring terminal group respectively; and a driving assembly, the driving assembly being used for driving the main joint conductor to be electrically connected with the corresponding second wiring terminal and also used for driving the pre-charging joint conductor to be electrically connected with the pre-charging resistor. Thus, the contactor of the application can meet the high-voltage on and off requirements of the whole vehicle and also meet the active discharge requirements of other components, and the multiple contactors can be integrated together, and meanwhile, the risk of mutual influence between the high-voltage main loop and the low-voltage control loop can be avoided, thereby being beneficial to enhancing the safety and practicability of the contactor.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of contactors, in particular to a contactor, a charging and power distribution system of a vehicle, the vehicle and a charging pile. BACKGROUND

[0002] In the related art, the contactor of the automobile generally controls the on-off of the high-voltage main loop through the low-voltage coil, which makes the contactor have the risk of mutual influence between the high-voltage main loop and the low-voltage control loop, and makes the contactor have a safety hazard. At the same time, multiple contactors need to be set in the power distribution system of the automobile to meet various needs, in order to avoid the mutual influence between multiple electrical elements, multiple contactors are independently set respectively, which leads to complex circuit arrangement, large space occupation and high cost. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, one object of the present application is to propose a contactor which can integrate at least three DC contactors and a pre-charge resistor together, can meet the high-voltage power-on and power-off requirements of the whole vehicle, and can also meet the active discharge requirements of other components.

[0004] The present application further proposes a charging and power distribution system of a vehicle.

[0005] The present application further proposes a vehicle.

[0006] The present application further proposes a charging pile.

[0007] The contactor according to the present application comprises: at least two terminal groups, each terminal group comprising a first terminal and a second terminal; at least two main contact conductors, the main contact conductors corresponding to the terminal groups one by one, each main contact conductor being connected with the corresponding first terminal; a pre-charge contact conductor and a pre-charge resistor, the pre-charge contact conductor and the pre-charge resistor being connected with the first terminal and the second terminal of one terminal group respectively; a driving assembly, the driving assembly being used to drive the main contact conductors to be electrically connected with the corresponding second terminals, and also being used to drive the pre-charge contact conductor to be electrically connected with the pre-charge resistor.

[0008] The contactor according to the present application can meet the high-voltage power-on and power-off requirements of the whole vehicle, and can also meet the active discharge requirements of other components, and can integrate multiple contactors together, at the same time, can avoid the risk of mutual influence between the high-voltage main loop and the low-voltage control loop, which is beneficial to enhance the safety and practicality of the contactor.

[0009] In some examples of the present application, the driving assembly comprises a sector-shaped driving part configured to rotate around the first axis; wherein the sector-shaped driving part pushes the plurality of main joint conductors and the pre-charge joint conductor during rotation and releases the pushing of the plurality of main joint conductors and the pre-charge joint conductor, the sector-shaped driving part pushes the plurality of main joint conductors to connect the plurality of main joint conductors with the corresponding second terminal, and the sector-shaped driving part pushes the pre-charge joint conductor to connect the pre-charge joint conductor with the pre-charge resistor.

[0010] In some examples of the present application, the sector-shaped driving part comprises a first sector-shaped part, a second sector-shaped part and a third sector-shaped part distributed along the first axis, the main joint conductor comprises a first joint conductor and a second joint conductor, the first sector-shaped part is used to push the first joint conductor and release the pushing of the first joint conductor, the second sector-shaped part is used to push the second joint conductor and release the pushing of the second joint conductor, and the third sector-shaped part is used to push the pre-charge joint conductor and release the pushing of the pre-charge joint conductor.

[0011] In some examples of the present application, the first sector-shaped part, the second sector-shaped part and the third sector-shaped part rotate synchronously around the first axis, and each of the first sector-shaped part, the second sector-shaped part and the third sector-shaped part comprises a rotating front side and a rotating rear side; during rotation of the first sector-shaped part, the first sector-shaped part pushes the first joint conductor after the rotating front side of the first sector-shaped part contacts the first joint conductor and before the rotating rear side of the first sector-shaped part contacts the first joint conductor; during rotation of the second sector-shaped part, the second sector-shaped part pushes the second joint conductor after the rotating front side of the second sector-shaped part contacts the second joint conductor and before the rotating rear side of the second sector-shaped part contacts the second joint conductor; and during rotation of the third sector-shaped part, the third sector-shaped part pushes the pre-charge joint conductor after the rotating front side of the third sector-shaped part contacts the pre-charge joint conductor and before the rotating rear side of the third sector-shaped part contacts the pre-charge joint conductor.

[0012] In some examples of the present application, the pre-charge joint conductor is connected with the first joint conductor, the pre-charge resistor is connected with the second terminal of the terminal group corresponding to the first joint conductor, and there is an included angle between the projection of the rotating front side of the third sector-shaped part and the projection of the rotating front side of the second sector-shaped part, and between the projection of the rotating front side of the second sector-shaped part and the projection of the rotating front side of the first sector-shaped part along the direction of the first axis.

[0013] In some examples of the present application, the projection of the rotating front side of the first sector along the first axis direction and the projection of the rotating back side of the third sector, the projection of the rotating back side of the third sector and the projection of the rotating back side of the second sector, and the projection of the rotating back side of the second sector and the projection of the rotating back side of the first sector all have an included angle therebetween.

[0014] In some examples of the present application, the driving assembly further comprises a power source and a transmission rod, the second terminal of the power source is connected to the end of the transmission rod, the sector driving part is arranged on the transmission rod, and the first axis is coincident with the axis of the transmission rod.

[0015] In some examples of the present application, the main contact conductor comprises a fixed part and a contact part, the fixed part and the contact part are connected, the fixed part is fixedly connected to the corresponding first terminal, and the driving assembly is adapted to drive the contact part to drive the contact part to contact the corresponding second terminal.

[0016] In some examples of the present application, the main contact conductor further comprises a weakened part, and the fixed part and the contact part are connected through the weakened part.

[0017] In some examples of the present application, the weakened part is configured as an arc segment, one end of the arc segment is connected to the fixed part and the other end is connected to the contact part, and the weakened part has a weakened cavity therein.

[0018] In some examples of the present application, the pre-charging contact conductor has the same structure as the main contact conductor.

[0019] In some examples of the present application, the contact further comprises a housing, the driving assembly, the main contact conductor, the pre-charging resistor and the pre-charging contact conductor are arranged in the housing, the first terminal and the second terminal are arranged on the housing, and the housing is provided with an insulating partition plate between the first terminal and the second terminal.

[0020] In some examples of the present application, the housing is provided with a fixed support, and the fixed support has a mounting hole part.

[0021] In some examples of the present application, the contactor further comprises a temperature sensor and a controller, the temperature sensor is electrically connected with the controller, and the temperature sensor is arranged adjacent to the first terminal or the second terminal or the main joint conductor or the pre-charge joint conductor and is used to detect the circuit signal of the first terminal or the second terminal or the main joint conductor or the pre-charge joint conductor in real time, and the controller is adapted to control the driving assembly to open or close the electrical connection between the main joint conductor and the second terminal or the electrical connection between the pre-charge joint conductor and the pre-charge resistor according to the circuit signal.

[0022] In some examples of the present application, the controller is used to obtain the temperature or voltage or current of the first terminal or the second terminal or the main joint conductor or the pre-charge joint conductor according to the circuit signal.

[0023] The controller is configured to open the electrical connection between the main joint conductor and the second terminal or the electrical connection between the pre-charge joint conductor and the pre-charge resistor when the temperature of the first terminal or the second terminal or the main joint conductor or the pre-charge joint conductor is greater than a first temperature threshold value; and / or the voltage is greater than a first voltage threshold value; and / or the current is greater than a first current threshold value.

[0024] In some examples of the present application, the controller is configured to close the electrical connection between the main joint conductor and the second terminal or the electrical connection between the pre-charge joint conductor and the pre-charge resistor when the temperature of the first terminal or the second terminal or the main joint conductor or the pre-charge joint conductor is less than a second temperature threshold value; and / or the voltage is less than a second voltage threshold value; and / or the current is less than a second current threshold value, wherein the second temperature threshold value is less than or equal to the first temperature threshold value, the second voltage threshold value is less than or equal to the first voltage threshold value, and the second current threshold value is less than or equal to the first current threshold value.

[0025] The charging and power supply system of the vehicle according to the present application comprises the contactor described above, wherein,

[0026] The terminal groups are two groups, the first terminal of one of the two groups of terminals is a positive input terminal post and the second terminal is a positive output terminal post, and the first terminal of the other group of terminals is a negative input terminal post and the second terminal is a negative output terminal post.

[0027] The main joint conductor comprises a first joint conductor and a second joint conductor, the first joint conductor is connected with the positive input terminal post and is used to selectively adhere to the positive output terminal post, and the second joint conductor is connected with the negative input terminal post and is used to selectively adhere to the negative output terminal post.

[0028] One of the positive input terminal and the positive output terminal is connected to a positive terminal of a battery terminal interface of the vehicle, and the other is connected to a positive terminal of an electric control terminal interface of the vehicle;

[0029] One of the negative input terminal and the negative output terminal is connected to a negative terminal of the battery terminal interface, and the other is connected to a negative terminal of the electric control terminal interface.

[0030] In some examples of the present application, the driving assembly is configured to selectively turn on or turn off the pre-charge conductor and the pre-charge resistor, the second conductor and the negative output terminal, and the first conductor and the positive output terminal in sequence.

[0031] The vehicle according to the present application comprises the charging and power supply system of the vehicle as described above.

[0032] The charging pile according to the present application comprises the contactor as described above.

[0033] Additional aspects and advantages of the present application will be made apparent from the following description of embodiments of the present application, which is given for the purpose of explanation and non-limitation, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0034] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0035] Figure 1 is a schematic view of a contactor according to an embodiment of the present application;

[0036] Figure 2 is a top view of a contactor according to an embodiment of the present application;

[0037] Figure 3 is Figure 2 a sectional view at A-A in FIG. 1;

[0038] Figure 4 is Figure 2 a sectional view at B-B in FIG. 1;

[0039] Figure 5 is Figure 2 a sectional view at C-C in FIG. 1;

[0040] Figure 6 is Figure 2 a sectional view at D-D in FIG. 1;

[0041] Figure 7 is a sectional view of a contactor according to an embodiment of the present application;

[0042] Figure 8 is a high voltage schematic diagram of a contactor according to an embodiment of the present application;

[0043] Figure 9 is a partial structural schematic diagram of a contactor according to an embodiment of the present application;

[0044] Figure 10 is an assembly schematic diagram of a first terminal, a second terminal, a contact conductor, a drive assembly and a pre-charge resistor of a contactor according to an embodiment of the present application;

[0045] Figure 11 is a schematic diagram of a drive assembly, a contact conductor and a pre-charge contact conductor of a contactor according to an embodiment of the present application;

[0046] Figure 12 is a top view of an assembly of a first terminal, a second terminal, a contact conductor, a drive assembly and a pre-charge resistor of a contactor according to an embodiment of the present application;

[0047] Figure 13 is a schematic diagram of a pre-charge contact conductor and a pre-charge resistor of a contactor according to an embodiment of the present application when being engaged;

[0048] Figure 14 is Figure 13 is a sectional view at E-E in FIG. 11;

[0049] Figure 15 is Figure 13 is a sectional view at F-F in FIG. 12;

[0050] Figure 16 is a schematic diagram of a pre-charge contact conductor and a pre-charge resistor, a second contact conductor and a negative output terminal post of a contactor according to an embodiment of the present application when being engaged;

[0051] Figure 17 is Figure 16 is a sectional view at H-H in FIG. 13;

[0052] Figure 18 is Figure 16 is a sectional view at I-I in FIG. 14;

[0053] Figure 19 is a schematic diagram of a pre-charge contact conductor and a pre-charge resistor, a second contact conductor and a negative output terminal post, a first contact conductor and a positive output terminal post of a contactor according to an embodiment of the present application when being engaged;

[0054] Figure 20 is Figure 19 is a sectional view at G-G in FIG. 13;

[0055] Figure 21is a schematic view of a second joint conductor and a negative output terminal post of a contactor according to an embodiment of the present application when the first joint conductor and the positive output terminal post are engaged;

[0056] Figure 22 is a schematic view of a first joint conductor and a positive output terminal post of a contactor according to an embodiment of the present application when the first joint conductor and the positive output terminal post are engaged;

[0057] Figure 23 is a schematic view of a charging and distribution system according to an embodiment of the present application;

[0058] Figure 24 is a schematic view of a working circuit of a temperature sensor used in the present application.

[0059] Reference Signs:

[0060] Contactors 100;

[0061] First terminal 1; positive input terminal post 11; negative input terminal post 12;

[0062] Second terminal 2; positive output terminal post 21; negative output terminal post 22;

[0063] Main joint conductor 3; first joint conductor 3a; second joint conductor 3b; fixed part 31; weakened part 32; weakened cavity 321; joint part 33;

[0064] Drive assembly 4; fan-shaped drive part 41; first fan-shaped part 411; second fan-shaped part 412; third fan-shaped part 413; power source 42; transmission rod 43;

[0065] Housing 5; upper cover 51;

[0066] Insulating partition 6; fixed support 7; mounting hole part 71; low-voltage signal line 8;

[0067] Pre-charging resistor 9; pre-charging joint conductor 91; second connection end 92;

[0068] Metallic conductor 10;

[0069] Charging and distribution system 1000; main positive contactor 100a; main negative contactor 100b; pre-charging contactor 100c. DETAILED DESCRIPTION

[0070] Embodiments of the present application are described in detail below with reference to examples illustrated in the accompanying drawings, in which the same or similar components are denoted by the same or similar reference numerals throughout. The embodiments described below by reference to the drawings are exemplary and are for the purpose of explanation only and are not to be understood as limiting the present application.

[0071] The following description is made with reference toFigures 1-24 A contactor 100 according to an embodiment of the present invention is described. The contactor 100 is a DC contactor 100. The contactor 100 integrates at least two terminal groups, each terminal group including a first terminal 1 and a second terminal 2. The contactor 100 also integrates a pre-charge resistor 9 and a pre-charge connection conductor 91, thereby enabling the formation of at least three DC circuits. The contactor 100 integrates three DC contactors 100 together. The pre-charge resistor 9 of the contactor 100 has the function of discharging discharge energy.

[0072] like Figures 1-22 As shown, the contactor 100 according to an embodiment of the present invention includes: at least two terminal groups, at least two main contact conductors 3, a drive assembly 4, a pre-charge contact conductor 91, and a pre-charge resistor 9. The number of terminal groups can be flexibly set according to actual usage requirements. Preferably, there are two terminal groups, and the main contact conductors 3 are arranged in a one-to-one correspondence with the terminal groups. That is, one main contact conductor 3 is arranged for each terminal group, and each main contact conductor 3 is connected to a corresponding first terminal 1. The pre-charge contact conductor 91 and the pre-charge resistor 9 are respectively connected to the first terminal 1 and the second terminal 2 of one terminal group. For example, the pre-charge contact conductor 91 is connected to the first terminal 1, and the pre-charge resistor 9 is connected to the second terminal 2.

[0073] It should be noted that one first terminal 1 can correspond to one second terminal 2, and one first terminal 1 and one second terminal 2 can form a DC circuit.

[0074] The main bonding conductor 3 is made of a conductive material, such as iron or soft copper (silver) or other composite metals. This allows for a reduction in the weight and volume of the main bonding conductor 3 while improving its conductivity, enabling it to carry a larger current and thus improving the conductivity of the contactor 100.

[0075] Meanwhile, the use of composite materials such as soft copper (silver) in the main connecting conductor 3 makes the main connecting conductor 3 a soft material, which solves the rigid contact that occurs when the main connecting conductor 3 contacts the second terminal 2, effectively reduces the noise generated during contact, and further enhances the practicality of the contactor 100.

[0076] The pre-charge resistor 9 is connected to the second terminal 2, and the main bonding conductor 3 is connected to the first terminal 1. Further, the pre-charge resistor 9 is connected to a second connection terminal 92, and the pre-charge bonding conductor 91 is adapted to engage with the second connection terminal 92.

[0077] The driving assembly 4 is in communication control with the upper computer using CAN (Controller Area Network), and is used to drive the main joint conductor 3 to be electrically connected with the corresponding second connecting terminal 2 according to the signal control of the CAN, and the driving assembly 4 is also used to drive the pre-charging joint conductor 91 to be electrically connected with the pre-charging resistor 9. Further, the pre-charging joint conductor 91 and the second connecting terminal 92 are electrically connected, and the control of the pre-charging joint conductor 91 and the main joint conductor 3 can be realized through the same driving assembly 4. After the contactor 100 of the application is applied to a vehicle (for example, a new energy vehicle), the high-voltage on and off requirements of the whole vehicle can be met, and the active discharge requirements of other components (the charging and discharging principle is described below) can also be met. In addition, a plurality of contactors can be integrated together, at the same time, the risk of mutual influence between the high-voltage main loop and the low-voltage control loop can be avoided, which is beneficial to enhance the safety and practicability of the contactor 100.

[0078] At the same time, the contactor 100 can also include a temperature sensor, which is welded on the main joint conductor 3 and is electrically connected with the upper computer. The temperature sensor is used to detect the temperature change of the main joint conductor 3 and transmit the real-time temperature value of the main joint conductor 3 to the upper computer. Then, the upper computer determines whether the temperature meets the threshold temperature for disconnecting the first connecting terminal 1 and the second connecting terminal 2. If the temperature reaches the threshold temperature, the first connecting terminal 1 and the second connecting terminal 2 are controlled to be disconnected, so as to prevent the contactor 100 from overheating due to the high temperature of the main joint conductor 3, which is beneficial to enhance the safety of the contactor 100. Of course, the temperature sensor can also be arranged at other positions of the direct current loop for detecting the temperature of the direct current loop, which is not limited herein.

[0079] Therefore, the contactor 100 of the application can integrate at least three direct current contactors 100 and the pre-charging resistor 9 together, and the contactor 100 has a pre-charging loop, which can meet the high-voltage on and off requirements of the whole vehicle and the active discharge requirements of other components. In addition, the control of the pre-charging joint conductor 91 and the main joint conductor 3 can be realized through the same driving assembly 4. In addition, the contactor 100 can avoid the risk of mutual influence between the high-voltage main loop and the low-voltage control loop, which is beneficial to enhance the safety and practicability of the contactor 100.

[0080] In some embodiments of the application, as Figure 2As shown, the terminal groups are two groups, the first terminal 1 of one of the two groups of terminal groups is a positive input terminal post 11 and the second terminal 2 is a positive output terminal post 21, and the first terminal 1 of the other group of terminal groups is a negative input terminal post 12 and the second terminal 2 is a negative output terminal post 22, wherein the positive input terminal post 11 and the positive output terminal post 21 form a group of direct current loops, the main joint conductor 3 connected with the positive input terminal post 11 can selectively control the conduction or disconnection of the positive input terminal post 11 and the positive output terminal post 21, and the negative input terminal post 12 and the negative output terminal post 22 form another group of direct current loops, the main joint conductor 3 connected with the negative input terminal post 12 can selectively control the conduction or disconnection of the negative input terminal post 12 and the negative output terminal post 22.

[0081] Further, as shown, Figure 3 The main joint conductor 3 can include a first joint conductor 3a and a second joint conductor 3b.

[0082] The first joint conductor 3a is connected with the positive input terminal post 11 and is used to selectively disconnect or conduct with the positive output terminal post 21, and the second joint conductor 3b is connected with the negative input terminal post 12 and is used to selectively disconnect or conduct with the negative output terminal post 22. That is, the first joint conductor 3a can selectively control the conduction or disconnection of the positive input terminal post 11 and the positive output terminal post 21, and the second joint conductor 3b can selectively control the conduction or disconnection of the negative input terminal post 12 and the negative output terminal post 22, so as to selectively control the conduction or disconnection of the two groups of direct current loops through the first joint conductor 3a and the second joint conductor 3b.

[0083] In some embodiments of the present application, the driving assembly 4 is used to drive the pre-charging joint conductor 91 and the second connection end 92, the second joint conductor 3b and the negative output terminal post 22, and the first joint conductor 3a and the positive output terminal post 21 to be selectively conducted in turn. Specifically, after receiving the control signal issued by the upper computer, the driving assembly 4 starts to work, as shown in Figure 13 The driving assembly 4 first drives the pre-charging joint conductor 91 and the second connection end 92 to be conducted, at which time the pre-charging loop becomes a conduction state, as shown in Figure 16 Then the driving assembly 4 drives the second joint conductor 3b and the negative output terminal post 22 to be conducted, which corresponds to the vehicle being in a pre-charging state of being charged with high voltage on the whole vehicle, as shown in Figure 19 Then the driving assembly 4 drives the first joint conductor 3a and the positive output terminal post 21 to be conducted, so that the main positive loop of the contactor 100 is in a conduction state, as shown in Figure 21As shown, the driving assembly 4 drives the pre-charging connecting conductor 91 to disconnect from the second connecting end 92, and the pre-charging circuit is in an open state, at this time, the whole vehicle is in a normal high-voltage working state, and the contactor 100 is in this state all the time when the whole vehicle needs high-voltage electricity. When the whole vehicle needs to lower the high-voltage electricity, as shown, Figure 22 As shown, the driving assembly 4 drives the second connecting conductor 3b to disconnect from the negative output terminal post 22, and then the driving assembly 4 drives the first connecting conductor 3a to disconnect from the positive output terminal post 21, as shown, Figure 12 As shown, the main negative circuit, the main positive circuit and the pre-charging circuit are in an open state, at this time, the whole vehicle is in a state of lowering high-voltage electricity, and the contactor 100 is in this state all the time when the whole vehicle does not need high-voltage electricity. Therefore, the contactor 100 can meet the needs of the whole vehicle for high-voltage electricity and the needs of other components for active discharge, and the structure of the contactor 100 is simple.

[0084] In some embodiments of the present application, as shown, Figure 7As shown, the driving assembly 4 comprises a sector driving part 41 configured to rotate around a first axis. The sector driving part 41 pushes the plurality of main joint conductors 3 and the pre-charge joint conductor 91 during rotation and releases the pushing of the plurality of main joint conductors 3 and the pre-charge joint conductor 91. When the sector driving part 41 pushes the plurality of main joint conductors 3, the plurality of main joint conductors 3 are connected with the corresponding second connecting terminals 2. When the sector driving part 41 pushes the pre-charge joint conductor 91, the pre-charge joint conductor 91 is connected with the pre-charge resistor 9. Further, the sector driving part 41 pushes the pre-charge joint conductor 91 and the second connecting terminal 92, the first joint conductor 3a and the positive output terminal 21, and the second joint conductor 3b and the negative output terminal 22 to conduct during rotation. That is, when the sector driving part 41 rotates, the sector driving part 41 can drive the pre-charge joint conductor 91 and the second connecting terminal 92 to conduct, the sector driving part 41 can also drive the second joint conductor 3b and the negative output terminal 22 to conduct, and the sector driving part 41 can also drive the first joint conductor 3a and the positive output terminal 21 to conduct. It should be noted that the sector driving part 41 first drives the pre-charge joint conductor 91 and the second connecting terminal 92 to conduct, then the sector driving part 41 drives the second joint conductor 3b and the negative output terminal 22 to conduct, then the sector driving part 41 drives the first joint conductor 3a and the positive output terminal 21 to conduct, then the sector driving part 41 is separated from the pre-charge joint conductor 91, the pre-charge joint conductor 91 and the second connecting terminal 92 are disconnected, then the sector driving part 41 is separated from the second joint conductor 3b, the second joint conductor 3b and the negative output terminal 22 are disconnected, and then the sector driving part 41 is separated from the first joint conductor 3a, the first joint conductor 3a and the positive output terminal 21 are disconnected, thereby achieving the technical effect of driving the pre-charge joint conductor 91 and the second connecting terminal 92, the first joint conductor 3a and the positive output terminal 21, and the second joint conductor 3b and the negative output terminal 22 to be selectively conducted or disconnected in sequence.

[0085] Specifically, as shown in the figure, Figure 4 the sector driving part 41 can be configured as a sector structure, and the sector driving part 41 can rotate around the first axis. When the sector driving part 41 rotates, the sector driving part 41 is used to drive the main joint conductor 3 and the corresponding second connecting terminal 2 to conduct, and the sector driving part 41 is also used to drive the pre-charge joint conductor 91 and the second connecting terminal 92 to conduct.

[0086] It should be noted that the fan-shaped driving part 41 can drive the main joint conductor 3 to be connected with the corresponding second terminal 2, and the fan-shaped driving part 41 can drive the pre-charging joint conductor 91 to be connected with the pre-charging resistor 9. When the fan-shaped driving part 41 does not drive the main joint conductor 3 and the pre-charging joint conductor 91, the main joint conductor 3 and the pre-charging joint conductor 91 can be reset by the elasticity of the main joint conductor 3 and the pre-charging joint conductor 91, so as to separate the main joint conductor 3 from the corresponding second terminal 2, and separate the pre-charging joint conductor 91 from the pre-charging resistor 9. However, the application is not limited to this, and a reset driving structure can be arranged in the contactor 100, and the reset driving structure can drive the main joint conductor 3 to be disconnected from the corresponding second terminal 2, and drive the pre-charging joint conductor 91 to be disconnected from the pre-charging resistor 9. The reset driving structure can be a torsional spring.

[0087] Preferably, as shown in Figure 10 the main joint conductor 3 is connected with the first terminal 1 through the metal conductor 10 arranged between the first terminal 1 and the main joint conductor 3. The metal conductor 10 can conduct electricity between the first terminal 1 and the main joint conductor 3. One end of the main joint conductor 3 is connected with the metal conductor 10, so as to ensure the electrical conductivity between the first terminal 1 and the main joint conductor 3. When the fan-shaped driving part 41 rotates, the main joint conductor 3 can be connected with the second terminal 2. The rotation of the fan-shaped driving part 41 can realize the connection between the first terminal 1 and the second terminal 2, so as to facilitate the control of the working state of the contactor 100, and meet the different DC charging needs of users.

[0088] Further, as shown in Figure 7 the fan-shaped driving part 41 includes a first fan-shaped part 411, a second fan-shaped part 412 and a third fan-shaped part 413 distributed along the axial direction of the first axis, the main joint conductor 3 includes a first joint conductor 3a and a second joint conductor 3b, the first fan-shaped part 411 is used to push the first joint conductor 3a and release the pushing of the first joint conductor 3a, the second fan-shaped part 412 is used to push the second joint conductor 3b and release the pushing of the second joint conductor 3b, and the third fan-shaped part 413 is used to push the pre-charging joint conductor 91 and release the pushing of the pre-charging joint conductor 91.

[0089] Thus, the first sector 411 is used to push the first joint conductor 3a to enable the first joint conductor 3a to control the conduction of the positive input terminal post 11 and the positive output terminal post 21, the second sector 412 is used to push the second joint conductor 3b to enable the second joint conductor 3b to control the conduction of the negative input terminal post 12 and the negative output terminal post 22, and the third sector 413 is used to push the pre-charging joint conductor 91 to enable the pre-charging joint conductor 91 and the pre-charging resistor 9 to conduct, that is, the first sector 411 and the second sector 412 correspond to the first joint conductor 3a and the second joint conductor 3b one by one, and the third sector 413 corresponds to the pre-charging joint conductor 91, so as to facilitate the separate control of the first joint conductor 3a, the second joint conductor 3b and the pre-charging joint conductor 91 through the first sector 411, the second sector 412 and the third sector 413, and then facilitate the separate conduction of one group of DC circuits.

[0090] It should be noted that when at least two groups of terminal posts are integrated in the contactor 100, the number of joint conductors and the number of sectors should be the same as the number of the first terminal posts 1, so as to realize the control of the multiple groups of the first terminal posts 1 and the second terminal posts 2.

[0091] In some embodiments of the present application, the first sector 411, the second sector 412 and the third sector 413 rotate synchronously around the first axis, that is, the first sector 411, the second sector 412 and the third sector 413 rotate simultaneously. Further, the first sector 411, the second sector 412 and the third sector 413 each include a rotating front side and a rotating back side. It should be noted that the rotating front side refers to that the sector has a front side and a back side in the rotating direction of the sector, and the front side of the sector in the rotating direction of the sector is the rotating front side, and the back side is the rotating back side.

[0092] During the rotation of the first sector 411, after the rotating front side of the first sector 411 contacts the first joint conductor 3a, before the rotating back side of the first sector 411 contacts the first joint conductor 3a, the first sector 411 pushes the first joint conductor 3a, so as to enable the first joint conductor 3a to joint with the corresponding second terminal post 2. It should be noted that after the rotating back side of the first sector 411 contacts the first joint conductor 3a, before the rotating front side of the first sector 411 contacts the first joint conductor 3a, the first sector 411 releases the pushing of the first joint conductor 3a.

[0093] During the rotation of the second sector 412, the second sector 412 pushes the second joint conductor 3b before the rotation front side of the second sector 412 contacts the second joint conductor 3b and the rotation rear side of the second sector 412 contacts the second joint conductor 3b, so that the second joint conductor 3b is jointed with the corresponding second terminal 2. It should be noted that the second sector 412 releases the push on the second joint conductor 3b after the rotation rear side of the second sector 412 contacts the second joint conductor 3b and before the rotation front side of the second sector 412 contacts the second joint conductor 3b.

[0094] During the rotation of the third sector 413, the third sector 413 pushes the pre-charge joint conductor 91 before the rotation front side of the third sector 413 contacts the pre-charge joint conductor 91 and the rotation rear side of the third sector 413 contacts the pre-charge joint conductor 91, so that the pre-charge joint conductor 91 is jointed with the pre-charge resistor 9. It should be noted that the third sector 413 releases the push on the pre-charge joint conductor 91 after the rotation rear side of the third sector 413 contacts the pre-charge joint conductor 91 and before the rotation front side of the third sector 413 contacts the pre-charge joint conductor 91.

[0095] In some embodiments of the application, the pre-charge joint conductor 91 is connected with the first joint conductor 3a, the pre-charge resistor 9 is connected with the second terminal 2 of the terminal group corresponding to the first joint conductor 3a, and the projection of the rotation front side of the third sector 413 and the projection of the rotation front side of the second sector 412, and the projection of the rotation front side of the second sector 412 and the projection of the rotation front side of the first sector 411 have an included angle in the first axis direction. Such an arrangement can make the third sector 413 push the pre-charge joint conductor 91 to joint with the pre-charge resistor 9 first, then make the second sector 412 push the second joint conductor 3b to joint with the negative output terminal post 22, and then make the third sector 413 push the first joint conductor 3a to joint with the positive output terminal post 21, so as to realize the time difference between the opening of the contactor 100. It should be noted that the pre-charge resistor 9 is connected in parallel with the first joint conductor 3a, and the jointing sequence of the contactor 100 is that the pre-charge joint conductor 91 is jointed with the pre-charge resistor 9 first, then the second joint conductor 3b is jointed with the negative output terminal post 22, and then the first joint conductor 3a is jointed with the positive output terminal post 21.

[0096] Further, along the first axis direction, the included angle between the projection of the rotating front side of the first sector 411 and the projection of the rotating front side of the second sector 412 is A, which satisfies the relationship: 60°≤A≤70°, preferably, A is 65°, and the included angle between the projection of the rotating front side of the second sector 412 and the projection of the rotating front side of the third sector 413 is B, which satisfies the relationship: 20°≤B≤30°, preferably, B is 25°. By setting A to 65° and B to 25°, when the first sector 411, the second sector 412 and the third sector 413 rotate synchronously, it is ensured that the three contactors 100 have a time difference when turned on, which meets the high-voltage on and off requirements of the whole vehicle and can also meet the active discharge requirements of other components.

[0097] In some embodiments of the application, along the first axis direction, the projection of the rotating front side of the first sector 411 and the projection of the rotating back side of the third sector 413, the projection of the rotating back side of the third sector 413 and the projection of the rotating back side of the second sector 412, and the projection of the rotating back side of the second sector 412 and the projection of the rotating back side of the first sector 411 all have included angles. Such a setting can make the third sector 413 loosen the pre-charging contact conductor 91 first, then make the second sector 412 loosen the second contact conductor 3b, and then make the third sector 413 loosen the first contact conductor 3a.

[0098] In some embodiments of the application, as shown in Figure 7 The driving assembly 4 can further include a power source 42 and a transmission rod 43. The output end of the power source 42 is connected to the end of the transmission rod 43, and the sector driving part 41 is arranged on the transmission rod 43. It can also be understood that the first sector 411, the second sector 412 and the third sector 413 are arranged on the transmission rod 43 and spaced apart along the axial direction of the transmission rod 43, and the first axis coincides with the axis of the transmission rod 43. The power source 42 is electrically connected to the upper computer. The power source 42 can be configured as an electric motor, which is convenient for controlling the speed and direction of the electric motor through the upper computer. It should be noted that the first sector 411, the second sector 412 and the third sector 413 are distributed in a certain angular range on the transmission rod 43. The transmission rod 43 can rotate at a uniform speed or a non-uniform speed.

[0099] As shown in Figure 7 The output end of the power source 42 is connected to the end of the transmission rod 43, and the other end of the transmission rod 43 extends away from the power source 42. The first axis coincides with the axis of the transmission rod 43, so that the transmission rod 43 can rotate along the first axis under the action of the power source 42, thereby facilitating the power source 42 to provide driving force for the transmission rod 43. By controlling the rotation of the power source 42, the conduction and disconnection of the contactor 100 can be realized.

[0100] Further, as shown in Figure 7 the second sector 412, the first sector 411 and the third sector 413 are arranged on the transmission rod 43 and sequentially distributed along the axial direction of the transmission rod 43, so as to facilitate the first sector 411 to control the first joint conductor 3a to be in conduction with the positive output terminal post 21, facilitate the second sector 412 to control the second joint conductor 3b to be in conduction with the negative output terminal post 22, and facilitate the third sector 413 to control the pre-charging joint conductor 91 to be in conduction with the pre-charging resistor 9.

[0101] In some embodiments of the present application, as shown in Figure 9 and Figure 10 the main joint conductor 3 can include a fixed portion 31 and a joint portion 33, the fixed portion 31 and the joint portion 33 are connected, the fixed portion 31 is fixedly connected with the corresponding first terminal 1, and the driving assembly 4 is adapted to drive (push) the joint portion 33 to drive (push) the joint portion 33 to be in joint with the corresponding second terminal 2.

[0102] Further, the main joint conductor 3 can further include a weakened portion 32, and the fixed portion 31 and the joint portion 33 are connected through the weakened portion 32. It should be noted that the first joint conductor 3a and the second joint conductor 3b have the same structure, and the first joint conductor 3a and the second joint conductor 3b both include the fixed portion 31, the weakened portion 32 and the joint portion 33. The fixed portion 31, the weakened portion 32 and the joint portion 33 are sequentially connected, and the fixed portion 31, the weakened portion 32 and the joint portion 33 can be an integral molding structure. The fixed portion 31 and the joint portion 33 are connected through the weakened portion 32, the fixed portion 31 is fixedly connected with the first terminal 1, and the driving assembly 4 is adapted to push the joint portion 33 to push the joint portion 33 to be in joint with the second terminal 2.

[0103] Specifically, one end of the main joint conductor 3 close to the first terminal 1 is the fixed portion 31, one end of the main joint conductor 3 away from the first terminal 1 is the joint portion 33, the fixed portion 31 and the joint portion 33 are connected through the weakened portion 32, that is, the weakened portion 32 is arranged between the fixed portion 31 and the joint portion 33, and the fixed portion 31 is fixedly connected with the metal conductor 10 of the first terminal 1, so as to facilitate to ensure the connection stability and conductivity between the first terminal 1 and the fixed portion 31, and the sector driving portion 41 is adapted to abut against the joint portion 33 to push the joint portion 33 to be in joint with the second terminal 2.

[0104] It can be understood that, referring to Figure 7 and Figure 9 the main joint conductor 3 can include a fixed portion 31 and a joint portion 33, the fixed portion 31 and the joint portion 33 are connected, the fixed portion 31 is fixedly connected with the corresponding first terminal 1, and the driving assembly 4 is adapted to drive (push) the joint portion 33 to drive (push) the joint portion 33 to be in joint with the corresponding second terminal 2.When it is needed to control the first terminal 1 and the second terminal 2 to be connected, the power source 42 generates driving force, the transmission rod 43 rotates under the action of the driving force, and the transmission rod 43 drives the sector driving part 41 to rotate. When the end of the sector driving part 41 away from the transmission rod 43 contacts the engaging part 33, the end of the sector driving part 41 away from the transmission rod 43 will extrude the engaging part 33 to move towards the second terminal 2, and then the engaging part 33 engages with the second terminal 2, so that the first terminal 1 and the second terminal 2 are connected.

[0105] When it is needed to control the first terminal 1 and the second terminal 2 to be disconnected, referring to Figure 12 , the power source 42 generates driving force, the transmission rod 43 rotates under the action of the driving force, and the transmission rod 43 drives the sector driving part 41 to rotate. When the end of the sector driving part 41 away from the transmission rod 43 does not contact the engaging part 33, the end of the sector driving part 41 away from the transmission rod 43 will not extrude the engaging part 33. At this time, the engaging part 33 will automatically return to the initial position, that is, the engaging part 33 does not engage with the second terminal 2, so that the first terminal 1 and the second terminal 2 are disconnected.

[0106] For example, when it is needed to control the positive input terminal 11 and the positive output terminal 21 to be connected, the power source 42 generates driving force, the transmission rod 43 rotates under the action of the driving force, and the transmission rod 43 drives the first sector part 411 to rotate. When the end of the first sector part 411 away from the transmission rod 43 contacts the engaging part 33 of the first engaging conductor 3a, the end of the first sector part 411 away from the transmission rod 43 will extrude the engaging part 33 of the first engaging conductor 3a to move towards the positive output terminal 21, and then the engaging part 33 engages with the positive output terminal 21, so that the first terminal 1 and the second terminal 2 are connected.

[0107] When it is needed to control the positive input terminal 11 and the positive output terminal 21 to be disconnected, the power source 42 generates driving force, the transmission rod 43 rotates under the action of the driving force, and the transmission rod 43 drives the first sector part 411 to rotate. When the end of the first sector part 411 away from the transmission rod 43 does not contact the engaging part 33 of the first engaging conductor 3a, the end of the first sector part 411 away from the transmission rod 43 will not extrude the engaging part 33. At this time, the engaging part 33 of the first engaging conductor 3a will automatically return to the initial position, that is, the engaging part 33 does not engage with the second terminal 2, so that the positive input terminal 11 and the positive output terminal 21 are disconnected.

[0108] The switching on / off of the negative input terminal 12 and the negative output terminal 22 is the same as the switching on / off of the positive input terminal 11 and the positive output terminal 21, and is performed synchronously, so it will not be described again here. Similarly, the switching on / off of the pre-charge contact conductor 91 and the second connection terminal 92 is the same as the switching on / off of the positive input terminal 11 and the positive output terminal 21, and is performed synchronously, so it will not be described again here. All three share a single power source 42 and a transmission rod 43. Therefore, the same power source 42 can be used to connect the two sets of first terminals 1 and second terminals 2, as well as the pre-charge contact conductor 91 and the second connection terminal 92. This significantly reduces the size of the device by integrating three contactors and provides the advantage of easy control.

[0109] In some embodiments of the present invention, the pre-charged bonding conductor 91 has the same structure as the main bonding conductor 3. Furthermore, the structure of the pre-charged bonding conductor 91 is the same as that of the main bonding conductor 3. That is, the pre-charged bonding conductor 91 includes a fixing part 31, a weakening part 32, and a bonding part 33. When it is necessary to control the pre-charged bonding conductor 91 and the second connection end 92 to be connected, the power source 42 generates a driving force, the transmission rod 43 rotates under the action of the driving force, and the transmission rod 43 drives the third sector part 413 to rotate. When the end of the third sector part 413 away from the transmission rod 43 contacts the bonding part 33 of the pre-charged bonding conductor 91, the end of the third sector part 413 away from the transmission rod 43 will squeeze the bonding part 33 of the pre-charged bonding conductor 91 to move toward the second connection end 92, thereby making the bonding part 33 of the pre-charged bonding conductor 91 engage with the second connection end 92, thereby making the pre-charged bonding conductor 91 and the second connection end 92 connected.

[0110] When it is necessary to control the disconnection of the pre-charged bonding conductor 91 and the second connection terminal 92, refer to Figure 12 The power source 42 generates driving force, and the transmission rod 43 rotates under the action of driving force. The transmission rod 43 drives the third sector 413 to rotate. When the end of the third sector 413 away from the transmission rod 43 does not contact the joint 33 of the pre-charged joint conductor 91, the end of the third sector 413 away from the transmission rod 43 will not squeeze the joint 33 of the pre-charged joint conductor 91. At this time, the joint 33 of the pre-charged joint conductor 91 will automatically return to its initial position, that is, the joint 33 of the pre-charged joint conductor 91 will not engage with the second connection end 92, thereby causing the pre-charged joint conductor 91 and the second connection end 92 to disconnect.

[0111] In some embodiments of the present invention, such as Figure 10As shown, the weakening portion 32 is configured as an arc segment, one end of the arc segment is connected with the fixed portion 31 and the other end is connected with the joint portion 33, and the weakening portion 32 is recessed towards the direction close to the second connecting terminal 2 to form a weakening cavity 321 in the weakening portion 32. By arranging the weakening cavity 321, it is convenient to reduce the extrusion force of the fan-shaped driving portion 41 on the joint piece when the fan-shaped driving portion 41 extrudes the joint piece to connect the joint piece with the second connecting terminal 2, thereby reducing the consumption of the power source 42, facilitating to reduce the energy consumption and production cost, and facilitating the joint piece to quickly return to the initial position when the joint piece is not connected with the second connecting terminal 2, thereby improving the speed of the first connecting terminal 1 and the second connecting terminal 2 in being connected or disconnected, and improving the working efficiency of the contactor 100.

[0112] In some embodiments of the present application, as shown in Figure 1 The contactor 100 can further include a housing 5, an installation space is formed in the housing 5, the driving assembly 4, the main joint conductor 3, the pre-charging resistor 9 and the pre-charging joint conductor 91 are all arranged in the housing 5, and the first connecting terminal 1 and the second connecting terminal 2 are both arranged on the housing 5, so that the driving assembly 4, the joint conductor 3, the pre-charging resistor 9 and the pre-charging joint conductor 91 do not occupy the external installation space, the space utilization rate in the contactor 100 is improved, and the miniaturization design of the contactor 100 is facilitated. It should be noted that the housing 5 is made of insulating material, that is, the housing 5 can prevent the contactor 100 from generating a leakage problem, thereby enhancing the safety of the contactor 100.

[0113] Further, as shown in Figure 1 The housing 5 includes an upper cover 51, and the first connecting terminal 1 and the second connecting terminal 2 are both arranged on the peripheral wall of the housing 5. Preferably, the first connecting terminal 1 and the second connecting terminal 2 are both arranged on the upper cover 51 of the housing 5 and are spaced apart, which facilitates the separate processing of the first connecting terminal 1 and the second connecting terminal 2 and reduces the processing difficulty.

[0114] At the same time, as shown in Figure 1 The peripheral wall of the housing 5 is provided with an insulating partition plate 6 between the first connecting terminal 1 and the second connecting terminal 2. Preferably, the insulating partition plate 6 is arranged on the upper cover 51 of the housing 5, the insulating partition plate 6 extends away from the upper cover 51 along the width direction thereof, and the insulating partition plate 6 and the upper cover 51 can be an integral molding structure, which facilitates simultaneous molding of the two, reduces the production efficiency, and facilitates spacing of the first connecting terminal 1 and the second connecting terminal 2 by the insulating partition plate 6. It can be understood that the insulating partition plate 6 is made of insulating material, which can avoid the problem of electric shock adhesion of the first connecting terminal 1 and the second connecting terminal 2 when the electronic elements are connected with the first connecting terminal 1 and the second connecting terminal 2, thereby enhancing the safety of the electrical connection of the first connecting terminal 1 and the second connecting terminal 2 and further enhancing the safety and practicability of the contactor 100.

[0115] It should be noted that, as shown in Figure 1 The low-voltage signal line 8 is arranged on the side wall of the shell 5, penetrates the shell 5, and has one end extending into the shell 5 to be connected with the driving assembly 4 in the contactor 100 and the other end extending out of the shell 5 to be connected with the control module. Thus, the control module and the driving assembly 4 can be connected through the low-voltage signal line 8, such as the low-voltage signal line 8 being electrically connected with the power source 42, so as to facilitate the control of the power source 42 through the control module, and then the control of the driving assembly 4 is realized, the working state of the contactor 100 is adjusted, and different charging needs of the user for the vehicle are facilitated to improve the user experience. However, the present application is not limited thereto, and a connector can be arranged on the side wall of the shell 5 to replace the low-voltage signal line 8 in the above embodiment.

[0116] In some embodiments of the present application, as shown in Figure 1 The shell 5 can be provided with a fixing support 7 having a mounting hole portion 71, and the contactor 100 is mounted on other components through the mounting hole portion 71. It should be noted that the shell 5 has a polygonal cross section, for example, the cross section of the shell 5 can be quadrangular, or the cross section of the shell 5 can be hexagonal, of course, in some examples, the cross section of the shell 5 can also be circular, etc., so as to flexibly design the shape of the shell 5 according to the actual structure of the contactor 100.

[0117] In some embodiments of the present application, the contactor 100 can further include a temperature sensor and a controller (i.e. an upper computer), the temperature sensor is electrically connected with the controller, and the temperature sensor is arranged near the first wiring terminal 1 or the second wiring terminal 2 or the main joint conductor 3 or the pre-charging joint conductor 91 and is used to detect the circuit signal of the first wiring terminal 1 or the second wiring terminal 2 or the main joint conductor 3 or the pre-charging joint conductor 91 in real time, and the controller is adapted to control the driving assembly 4 to disconnect or close the electrical connection between the main joint conductor 3 and the second wiring terminal 2 according to the circuit signal, or the controller is adapted to control the driving assembly 4 to disconnect or close the electrical connection between the pre-charging joint conductor 91 and the pre-charging resistor 9 according to the circuit signal.

[0118] The controller can be the original upper computer of the vehicle, and the temperature sensor and the upper computer use CAN (Controller Area Network) communication control, so as to realize the control of the temperature sensor by using the original upper computer, facilitate the simplification of the control structure of the temperature sensor, and reduce the production cost.

[0119] Further, the temperature sensor is used to detect the circuit signal of the first wiring terminal 1 or the second wiring terminal 2 or the main joint conductor 3 or the pre-charging joint conductor 91, and the controller is used to control the main joint conductor 3 to adhere to or separate from the second wiring terminal 2 according to the circuit signal. Preferably, the circuit signal includes a temperature signal or a on-off signal of the main joint conductor 3, etc., which is not limited herein.

[0120] In some examples, the temperature sensor is welded on the main joint conductor 3, and the temperature sensor is electrically connected with the host computer, as the main joint conductor 3 conducts the first terminal 1 and the second terminal 2, and / or the pre-charging joint conductor 91 conducts the pre-charging resistor 9, the current-carrying capacity of the high-voltage loop and the heat generation will change, and the temperature will change accordingly. The sensor can obtain the change information (temperature change, current-carrying capacity change, etc.) in the working process of the high-voltage loop. The temperature sensor is used to detect the temperature change of the main joint conductor 3 and / or the pre-charging joint conductor 91, and transmit it to the controller in the form of a circuit signal. The controller determines whether the high-voltage loop reaches the cut-off threshold according to the circuit signal, and controls the driving assembly 4 to loosen the electrical connection between the main joint conductor 3 and the second terminal 2 when the high-voltage loop needs to be disconnected. Not only does it not need to set a fuse to reduce high-voltage loss and cost, but also when the electrical equipment using the contactor 100 of the application needs to continue to work after the contactor 100 is controlled to be disconnected, it can also ensure that the electrical equipment can be powered on high voltage, and the safety can be improved.

[0121] Specifically, as shown in Figure 24 The voltage conversion principle of the thermistor and its corresponding voltage is: V=(NTC / (NTC+R))xVCC; Wherein, V is the input voltage, VCC is the standard voltage, R is the fixed resistance, and NTC is the thermistor; Therefore, the calculation method of the circuit signal AD is: AD=(V / VCC)x2 n =(NTC / (NTC+R))x2 n .

[0122] In this way, by obtaining the voltage value of the thermistor, the required circuit signal can be converted.

[0123] It should be pointed out that after the fuse is melted, the high-voltage circuit is completely disconnected, and the controller and the sensor are set in the application, even if the information obtained based on the sensor needs to disconnect the high-voltage, but in the extreme condition, it can still be powered on high voltage to improve the safety, for example: the contactor 100 of the application is applied to an electric vehicle, when the circuit information indicates that the contactor 100 needs to be disconnected, but the vehicle is in a dangerous situation and needs to maintain the working condition, then the high-voltage state can be maintained, and the electrical connection between the main joint conductor 3 and the second terminal 2 is disconnected after driving to a safe position or after the dangerous situation is removed.

[0124] Further, the controller is used to obtain the temperature or voltage or current of the first terminal 1 or the second terminal 2 or the main joint conductor 3 or the pre-charging joint conductor 91 according to the circuit signal;

[0125] The controller is configured to open the electrical connection between the main contact conductor 3 and the second terminal 2 or the electrical connection between the pre-charging contact conductor 91 and the pre-charging resistor 9 when the temperature of the first terminal 1 or the second terminal 2 or the main contact conductor 3 or the pre-charging contact conductor 91 is greater than a first temperature threshold value; and / or the voltage is greater than a first voltage threshold value; and / or the current is greater than a first current threshold value.

[0126] The controller is further configured to close the electrical connection between the main contact conductor 3 and the second terminal 2 or the electrical connection between the pre-charging contact conductor 91 and the pre-charging resistor 9 when the temperature of the first terminal 1 or the second terminal 2 or the main contact conductor 3 or the pre-charging contact conductor 91 is less than a second temperature threshold value; and / or the voltage is less than a second voltage threshold value; and / or the current is less than a second current threshold value, wherein the second temperature threshold value is less than or equal to the first temperature threshold value, the second voltage threshold value is less than or equal to the first voltage threshold value, and the second current threshold value is less than or equal to the first current threshold value.

[0127] That is, the contactor 100 of the present application can open the contactor 100 when the voltage of the high-voltage circuit to which the contactor 100 is connected exceeds the first voltage threshold value, the current exceeds the first current threshold value, or the temperature exceeds the first temperature threshold value, thereby improving the safety of the contactor 100, reducing the safety hazards of the high-voltage circuit, and avoiding the burning of the contactor 100.

[0128] Further, when the voltage of the high-voltage circuit to which the contactor 100 is connected is reduced to below the second voltage threshold value, the current is reduced to below the first current threshold value, or the temperature is reduced to below the first temperature threshold value, the contactor 100 can be controlled to close again, so that the high-voltage circuit to which the contactor 100 is connected can be switched to the working state in time, thereby effectively improving the safety and reducing the property loss.

[0129] Therefore, the temperature of the main contact conductor 3 can be prevented from being too high to cause the contactor 100 to overheat, thereby enhancing the safety of the contactor 100, and when the vehicle is in a dangerous situation and needs to maintain the working condition, the high-voltage state can be maintained, thereby enhancing the practicability of the contactor 100.

[0130] Of course, the temperature sensor can also be arranged at other positions of the high-voltage circuit in other structural forms to detect the circuit signal of the high-voltage circuit, which is not limited herein.

[0131] It should be noted that the positive input terminal 11 and the positive output terminal 21 constitute a main positive contactor 100a (K1), and the negative input terminal 12 and the negative output terminal 22 constitute a main negative contactor 100b (K2). Figure 8 The pre-charging contact conductor 91 is connected to the pre-charging resistor 9 in parallel, and the pre-charging resistor 9 is connected to the main contact conductor 3 in series. Figure 8In K2), the pre-charge contactor 100c is composed of the pre-charge conductor 91 and the pre-charge resistor 9 Figure 8 In K3), the main positive contactor 100a, the main negative contactor 100b and the pre-charge contactor 100c are turned on by the actions of the first sector 411, the second sector 412 and the third sector 413 respectively. As shown in Figure 8 As shown in the high-voltage schematic diagram, it can be seen that the contactor 100 contains three DC contactors 100 and a pre-charge resistor 9 with a discharge function. The pre-charge contactor 100c and the pre-charge resistor 9 are connected in series in the pre-charge circuit, and there is no external interface on the shell 5. The series circuit is connected across the main positive contactor 100a (i.e. the first terminal 1) and the main negative contactor 100b (i.e. the second terminal 2) of the contactor 100. Figure 8 In K1), the contactor 100 does not distinguish between the first terminal 1 and the second terminal 2. When assembling, it is only necessary to ensure that the high-voltage positive and negative of the same group of circuits are connected to the corresponding positive and negative positions on the same side of the integrated contactor baffle.

[0132] Specifically, the working principle of the contactor 100 of the present application is described in detail below.

[0133] The power source 42 (electric motor) receives a uniform rotation signal from the upper computer in a stationary state, and the electric motor is switched to a uniform rotation state.

[0134] Under the transmission of the power source 42, the third sector 413 first pushes the corresponding pre-charge conductor 91 through the rotation of the transmission rod. The engagement part 33 is connected to the second connection end 92 on the pre-charge resistor 9 through deformation. At this time, the pre-charge circuit is in a conductive state. During the entire process, the electric motor is in a rotating state and continues to rotate Figure 13 In action 2).

[0135] Then the pre-charge contactor 100c and the main negative contactor 100b are in a conductive state, and the main positive contactor 100a is in an open state Figure 16 In action 3), the whole vehicle is in a pre-charge state of being charged with high voltage (before the whole vehicle is charged with high voltage, some on-board high-voltage components need to be pre-charged to prevent short circuit of the capacitors when they are suddenly connected to high-voltage large current). At this time, the second sector 412 and the third sector 413 push the corresponding engagement parts 33, and the main negative circuit and the pre-charge circuit are in a conductive state. Generally, the state action process time is X milliseconds (for example, X is 200 milliseconds), and the electric motor is in a rotating state during the entire process.

[0136] X milliseconds later, as the electric motor continues to rotate, the first sector 411 continues to rotate and pushes its corresponding engagement portion 33, so that the main positive circuit is in the on state Figure 19 Generally, the state action process time is Y milliseconds (such as Y is 500 milliseconds), and during the entire process, the electric motor is always in the rotating state and continues to rotate. (Note: the values of X and Y are selected according to the parameters of the vehicle, such as the capacitance capacity of the high-voltage parts carried by the vehicle, the percentage of the set pre-charge to the capacitance capacity, the time required for the vehicle insulation detection, and the program judgment time, etc.).

[0137] Y milliseconds later, as the electric motor continues to rotate, the third sector 413 leaves its corresponding pre-charge engagement conductor 91 engagement portion 33, and the third sector 413 no longer pushes the engagement portion 33 corresponding thereto, and the engagement portion 33 returns to the state when the circuit is open, that is, the pre-charge circuit is in the open state Figure 21 Action 5). At this time, the vehicle is in a normal high-voltage power supply state, and the contactor 100 always continues this state during the entire time when the vehicle needs high-voltage power.

[0138] When the vehicle needs to lower the high-voltage power, the electric motor receives the uniform rotation signal sent by the upper computer, and the electric motor is switched to the rotating state Figure 22 Action 6). As the electric motor rotates, the second sector 412 and the first sector 411 successively leave the engagement portion 33 corresponding thereto, and the second sector 412 and the first sector 411 no longer push the engagement portion 33 corresponding thereto, and the engagement portion 33 returns to the state when the circuit is open, that is, the main negative and main positive circuits are in the open state Figure 12 Action 1). At this time, the vehicle is in a state of lowering the high-voltage power. The contactor 100 always continues this state during the entire time when the vehicle does not need high-voltage power.

[0139] As shown in Figure 8 and Figure 23 The power supply system 1000 of the vehicle according to the embodiment of the application includes the contactor 100 of the above-mentioned embodiment.

[0140] The two groups of terminals include a first terminal 1 and a second terminal 2, and the first terminal 1 of one of the two groups of terminals is a positive input terminal post 11 and the second terminal 2 is a positive output terminal post 21, and the first terminal 1 of the other of the two groups of terminals is a negative input terminal post 12 and the second terminal 2 is a negative output terminal post 22. The main joint conductor 3 includes a first joint conductor 3a and a second joint conductor 3b, the first joint conductor 3a is connected with the positive input terminal post 11, and the first joint conductor 3a is used to selectively fit with the positive output terminal post 21, and the second joint conductor 3b is connected with the negative input terminal post 12, and the second joint conductor 3b is used to selectively fit with the negative output terminal post 22.

[0141] Further, one of the positive input terminal post 11 and the positive output terminal post 21 is connected with a positive terminal of a battery end interface of the vehicle, the other of the positive input terminal post 11 and the positive output terminal post 21 is connected with a positive terminal of an electric control end interface of the vehicle, one of the negative input terminal post 12 and the negative output terminal post 22 is connected with a negative terminal of the battery end interface, and the other of the negative input terminal post 12 and the negative output terminal post 22 is connected with a negative terminal of the electric control end interface.

[0142] It should be noted that the positive input terminal post 11 and the positive output terminal post 21 constitute a main positive contactor 100a (K1), the negative input terminal post 12 and the negative output terminal post 22 constitute a main negative contactor 100b (K2), and the pre-charge joint conductor 91 and the pre-charge resistor 9 constitute a pre-charge contactor 100c (K3). Figure 23 Figure 23 Figure 23

[0143] Specifically, the charge and distribution power supply system 1000 includes a battery end interface, an electric control end interface, and a direct current charging interface, a charging circuit is formed between the direct current charging interface and the battery end interface, a distribution circuit is formed between the electric control end interface and the battery end interface, and the distribution circuit is used to provide electric energy for the whole vehicle, the positive terminal of the direct current charging interface and the positive terminal of the battery end interface are both provided with the main positive contactor 100a, the negative terminal of the direct current charging interface and the negative terminal of the battery end interface are both provided with the main negative contactor 100b, and the positive terminal of the battery end interface is further provided with a pre-charge circuit, and the pre-charge circuit is provided with the pre-charge contactor 100c in series with the pre-charge resistor 9 and in parallel with the main positive contactor 100a.

[0144] It should be noted that the charging and discharging process of the vehicle has been described in the above description, and will not be repeated here.

[0145] According to the charge and distribution power supply system 1000 of the embodiment of the present application, the above-mentioned contactor 100 can prolong the working stability, the use safety, and the service life of the charge and distribution power supply system.

[0146] ​​​The vehicle according to the embodiment of the present application adopts the contactor 100 in the above-described embodiment.

[0147] The charging pile according to the embodiment of the present application includes the contactor 100 in the above-described embodiment, and the use safety of the charging pile can be improved.

[0148] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0149] Although the embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A contactor characterized by, The application relates to a connector, comprising: at least two terminal groups, each terminal group comprising a first terminal and a second terminal; at least two main joint conductors, each main joint conductor corresponding to a terminal group, each main joint conductor being connected to the corresponding first terminal; a pre-charge joint conductor and a pre-charge resistor, the pre-charge joint conductor and the pre-charge resistor being connected to the first terminal and the second terminal of one terminal group respectively; a driving assembly for driving the main joint conductors to be electrically connected to the corresponding second terminals and for driving the pre-charge joint conductor to be electrically connected to the pre-charge resistor.

2. The contactor of claim 1, wherein The driving assembly comprises a sector-shaped driving part configured to rotate around a first axis; wherein the sector-shaped driving part pushes the main joint conductors and the pre-charge joint conductor during rotation and releases the pushing of the main joint conductors and the pre-charge joint conductor, the sector-shaped driving part pushes the main joint conductors to be connected to the corresponding second terminals when pushing the main joint conductors, and the sector-shaped driving part pushes the pre-charge joint conductor to be connected to the pre-charge resistor when pushing the pre-charge joint conductor.

3. The contactor of claim 2, wherein, The sector-shaped driving part comprises a first sector-shaped part, a second sector-shaped part and a third sector-shaped part distributed along the first axis, the main joint conductors comprise a first joint conductor and a second joint conductor, the first sector-shaped part is used for pushing the first joint conductor and releasing the pushing of the first joint conductor, the second sector-shaped part is used for pushing the second joint conductor and releasing the pushing of the second joint conductor, and the third sector-shaped part is used for pushing the pre-charge joint conductor and releasing the pushing of the pre-charge joint conductor.

4. The contactor of claim 3, wherein The first sector-shaped part, the second sector-shaped part and the third sector-shaped part rotate synchronously around the first axis, and each of the first sector-shaped part, the second sector-shaped part and the third sector-shaped part comprises a rotating front side and a rotating rear side; during rotation of the first sector-shaped part, the first sector-shaped part pushes the first joint conductor after the rotating front side of the first sector-shaped part contacts the first joint conductor and before the rotating rear side of the first sector-shaped part contacts the first joint conductor; during rotation of the second sector-shaped part, the second sector-shaped part pushes the second joint conductor after the rotating front side of the second sector-shaped part contacts the second joint conductor and before the rotating rear side of the second sector-shaped part contacts the second joint conductor; during rotation of the third sector-shaped part, the third sector-shaped part pushes the pre-charge joint conductor after the rotating front side of the third sector-shaped part contacts the pre-charge joint conductor and before the rotating rear side of the third sector-shaped part contacts the pre-charge joint conductor.

5. The contactor of claim 4, wherein, The pre-charging conductor is connected with the first joint conductor, the pre-charging resistor is connected with the second terminal of the terminal group corresponding to the first joint conductor, and the projection of the rotating front side of the third sector along the first axis direction and the projection of the rotating front side of the second sector have an included angle, and the projection of the rotating front side of the second sector and the projection of the rotating front side of the first sector have an included angle.

6. The contactor of claim 5, wherein, The projection of the rotating front side of the first sector and the projection of the rotating rear side of the third sector along the first axis direction have an included angle, the projection of the rotating rear side of the third sector and the projection of the rotating rear side of the second sector have an included angle, and the projection of the rotating rear side of the second sector and the projection of the rotating rear side of the first sector have an included angle.

7. The contactor of claim 2, wherein The driving assembly further comprises a power source and a transmission rod, the second terminal of the power source is connected with the end of the transmission rod, the sector driving part is arranged on the transmission rod, and the first axis is coincident with the axis of the transmission rod.

8. The contactor of claim 1, wherein, The main joint conductor comprises a fixed part and a joint part, the fixed part and the joint part are connected, the fixed part is fixedly connected with the corresponding first terminal, and the driving assembly is adapted to drive the joint part to drive the joint part to be connected with the corresponding second terminal.

9. The contactor of claim 8, wherein, The main joint conductor further comprises a weakened part, and the fixed part and the joint part are connected through the weakened part.

10. The contactor of claim 9, wherein, The weakened part is configured as an arc segment, one end of the arc segment is connected with the fixed part, the other end is connected with the joint part, and the weakened part has a weakened cavity.

11. The contactor of claim 9, wherein, The pre-charging conductor has the same structure as the main joint conductor.

12. The contactor of claim 1, wherein Further comprising: A housing, the driving assembly, the main joint conductor, the pre-charging resistor and the pre-charging conductor are arranged in the housing, the first terminal and the second terminal are arranged on the housing, and the peripheral wall of the housing is provided with an insulating partition plate between the first terminal and the second terminal.

13. The contactor of claim 12, wherein, The housing is provided with a fixed support, and the fixed support has a mounting hole part.

14. The contactor of claim 1, wherein Further comprising: A temperature sensor and a controller, the temperature sensor is electrically connected with the controller, the temperature sensor is arranged near the first terminal or the second terminal or the main joint conductor or the pre-charging conductor and is used for detecting the circuit signal of the first terminal or the second terminal or the main joint conductor or the pre-charging conductor in real time, and the controller is adapted to control the driving assembly to disconnect or close the electrical connection between the main joint conductor and the second terminal or the electrical connection between the pre-charging conductor and the pre-charging resistor according to the circuit signal.

15. The contactor of claim 14, wherein, The controller is used to obtain the temperature or voltage or current of the first terminal or the second terminal or the main joint conductor or the pre-charging conductor according to the circuit signal. The controller is configured to open the electrical connection between the main contact conductor and the second terminal or the electrical connection between the pre-charge contact conductor and the pre-charge resistor when the temperature of the first terminal or the second terminal or the main contact conductor or the pre-charge contact conductor is greater than a first temperature threshold; and / or the voltage is greater than a first voltage threshold; and / or the current is greater than a first current threshold.

16. The contactor of claim 15, wherein, The controller is configured to close the electrical connection between the main contact conductor and the second terminal or the electrical connection between the pre-charge contact conductor and the pre-charge resistor when the temperature of the first terminal or the second terminal or the main contact conductor or the pre-charge contact conductor is less than a second temperature threshold; and / or the voltage is less than a second voltage threshold; and / or the current is less than a second current threshold, wherein the second temperature threshold is less than or equal to the first temperature threshold, the second voltage threshold is less than or equal to the first voltage threshold, and the second current threshold is less than or equal to the first current threshold.

17. A charging and power supply system of a vehicle, characterized by, The contactor according to any one of claims 1-16, wherein, The terminal groups are two groups, the first terminal of one of the two terminal groups is a positive input terminal and the second terminal is a positive output terminal, and the first terminal of the other of the two terminal groups is a negative input terminal and the second terminal is a negative output terminal; The main contact conductor comprises a first contact conductor and a second contact conductor, the first contact conductor is connected to the positive input terminal and is used to selectively adhere to the positive output terminal, and the second contact conductor is connected to the negative input terminal and is used to selectively adhere to the negative output terminal; One of the positive input terminal and the positive output terminal is connected to a positive terminal of a battery end interface of the vehicle, and the other is connected to a positive terminal of an electronic control end interface of the vehicle; One of the negative input terminal and the negative output terminal is connected to a negative terminal of the battery end interface, and the other is connected to a negative terminal of the electronic control end interface.

18. The vehicle's charging and power supply system according to claim 17, characterized in that, The driving assembly is used to drive the pre-charge contact conductor and the pre-charge resistor, the second contact conductor and the negative output terminal, and the first contact conductor and the positive output terminal to be selectively turned on or turned off in sequence.

19. A vehicle characterized by comprising: The charging and power supply system of the vehicle according to claim 17 or 18.

20. A charging station, characterized in that The contactor according to any one of claims 1-16. The contactor according to any one of claims 1-16.

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