WO2021056774A1

WO2021056774A1 - Composite busbar of vehicle-mounted controller

Info

Publication number: WO2021056774A1
Application number: PCT/CN2019/119583
Authority: WO
Inventors: 李孟军; 余俊; 李昌华
Original assignee: 温州丰迪接插件有限公司
Priority date: 2019-09-26
Filing date: 2019-11-20
Publication date: 2021-04-01
Also published as: CN112713465B; CN110601130A; CN110601130B; CN112713465A

Abstract

Provided is a composite busbar of a vehicle-mounted controller, relating to the technical field of circuit breaker equipment, and comprising a busbar board (9), an A relay (12), a D fuse (14), a main fuse (18), and the like; the positive electrode of the input end of the busbar board (9) is electrically connected to the positive electrode of the E output end via the main fuse (18) and a main contactor (10); the positive electrode of the input end of the busbar board (9) is electrically connected to the positive electrode of the E output end via the main fuse (18), a B relay (13), and a pre-charge resistor (71); the positive electrode of the input terminal of the busbar board (9) is electrically connected to the positive electrode of the A output terminal via the main fuse (18), the A relay (12), and an A fuse (17); the positive electrode of the input end of the busbar board (9) is electrically connected to the positive electrode of the B output terminal via the main fuse (18), the A relay (12), and a B fuse (16); the positive electrode of the input end of the busbar board (9) is electrically connected to the positive electrode of the C output end via the main fuse (18) and a C fuse (15); the positive electrode of the input terminal of the busbar board (9) is electrically connected to the positive electrode of the output terminal D via the main fuse (18) and a D fuse (14); the negative electrode of the input end of the busbar board (9) is separately electrically connected to the negative electrodes of the five output ends. The invention has one-time installation, is not prone to errors, has a compact structure, and is easy to maintain and install.

Description

Composite busbar of vehicle-mounted controller

Technical field

The invention belongs to the technical field of circuit breaker equipment, and particularly relates to a vehicle-mounted controller composite busbar.

Background technique

At present, the controller, air conditioner, PTC and other electrical components of the new energy vehicle on-board system are powered by the on-board battery as a high-voltage power supply. However, in low-temperature environments, battery feeding, high lubricating oil viscosity, or traffic jams, the on-board battery voltage The current will cause frequent occurrence of the peak value of the on-board battery voltage and current output to the load of each branch due to factors such as start and stop and overload of the on-board load, and it is easy to damage various devices. There are many fuse hardware used to protect the current and voltage of the circuit in the internal electrical parts of the car. Different fuses need to be electrically connected to the circuit. The many joints for the electrical connection of the circuit will easily lead to complicated installation and easy connection errors. In addition, the intermediate fuse used by the vehicle controller for current carrying and protection of current and voltage is generally set in a single setting. When the current needs to be regulated and shunted, it can only be realized by this single set of fuse, so that the constant current and voltage cannot be guaranteed. Unstable voltage can easily damage the on-board controller. In the prior art, the current provided by the on-board battery is directly connected to each electrical component through a copper bar, but this electrical connection method cannot guarantee the constant current transmission, and the unstable current may easily cause damage to the electrical component. Secondly, the installation of some electrical components or conductive sheets of the existing on-board controllers generally uses bolts or nuts for fastening, especially when some electrical components or conductive sheets are in a narrow space, the installation of electrical components or conductive sheets and Disassembly will be very troublesome.

The present invention designs a vehicle-mounted controller composite busbar to solve the above problems.

Summary of the invention

In order to solve the above-mentioned defects in the prior art, the present invention discloses a vehicle-mounted controller composite busbar, which is realized by adopting the following technical solutions.

In the description of the present invention, it should be noted that the terms "inner", "lower", "upper" and other indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, or are customary when the product of the invention is used. The placement or positional relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore cannot be understood as a reference to the present invention. limits. In addition, the terms "first", "second", etc. are only used for distinguishing description, and cannot be understood as indicating or implying relative importance.

A vehicle-mounted controller composite busbar, which is characterized in that it includes a busbar board with one input terminal and five output terminals, A relay, D fuse, C fuse, B fuse, A fuse, and main fuse , Main contactor, precharge resistor, B relay, where the busbar board is composed of two surface insulation layers and an intermediate layer, the intermediate layer is located between the two surface insulation layers, and the intermediate layer is composed of a conductor and an insulation layer; busbar board The five output terminals are A output terminal, B output terminal, C output terminal, D output terminal and E output terminal in turn.

The positive pole of the input end of the busbar board is electrically connected to the positive pole of the E output terminal through the main fuse and main contactor; the positive pole of the input end of the busbar board is electrically connected to the positive pole of the E output terminal through the main fuse, B relay, and precharge resistor; the busbar board The positive pole of the input terminal is electrically connected to the positive pole of the output terminal A through the main fuse, relay A, and fuse A; the positive pole of the input terminal of the busbar board is electrically connected to the positive pole of the output terminal B through the main fuse, relay A, and fuse B; busbar board The positive pole of the input end is electrically connected to the positive pole of the C output terminal through the main fuse and the C fuse; the positive pole of the input end of the busbar board is electrically connected to the positive pole of the D output terminal through the main fuse and the D fuse.

The negative poles of the input end of the busbar board are electrically connected with the negative poles of the five output ends respectively.

As a further improvement of the present technology, the middle layer of the above-mentioned busbar board is glued to bond two surface insulating layers.

As a further improvement of the present technology, the input end of the above-mentioned busbar board is electrically connected with the battery through the A plug; the E output end of the above-mentioned busbar board is electrically connected with the motor controller through the B plug.

As a further improvement of the present technology, the above-mentioned busbar board is symmetrically fixed with copper bars A and B at both ends of the length direction side; the length direction side of the busbar board has a main cutout, and the main cutout, copper bar A and copper bar B are located On the same side of the busbar board, the main cut is located between the A copper busbar and the B copper bus; the middle layer of the busbar board is close to the width end of the A copper busbar, and A copper sheet and B copper are installed in sequence along the width direction of the busbar board. Sheet, C copper sheet, D copper sheet; the middle layer of the busbar board is installed with the main copper sheet near the width end of the B copper bar. The main copper sheet consists of A straight section, L-shaped section, B-shaped straight section and H-shaped section in sequence Connection structure, A straight section is located on the side of the middle layer with the main cut, B straight section is located at the width end of the middle layer close to the B copper bar, and the h-shaped section with C and D ends is located on the side of the middle layer away from the main cut; An L-shaped copper sheet is installed in the middle of the middle layer. The L-shaped copper sheet with ends A, B and E is located between the A straight section and the h-shaped section; the supporting copper sheet between the B straight section and the h-shaped section is installed on Intermediate layer; the A and B ends on the L-shaped copper sheet correspond to the positions of the A copper sheet and the B copper sheet respectively; the C and D ends on the h-shaped section correspond to the positions of the C copper sheet and the D copper sheet respectively ; U-shaped copper bar is fixedly mounted on the width end of the busbar board close to the A copper bar.

The places where A copper sheet, B copper sheet, C copper sheet, D copper sheet, L-shaped copper sheet, main copper sheet and branch copper sheet are not installed in the middle layer of the above-mentioned busbar are filled with insulating materials.

The A positive pole of the A plug is electrically connected to the A copper bar, and the B positive pole of the B plug is electrically connected to the B copper bar; one end of the above-mentioned main fuse is electrically connected to the A copper bar, and the other end is electrically connected to the end of the A straight section of the main copper sheet One end of the main fuse of the main contactor is electrically connected to the A straight section of the main copper sheet, and the other end is electrically connected to the B copper bar; one end of the above A relay is electrically connected to the B straight section of the main copper sheet, and the other end is connected to the L-shaped copper The E end of the piece is electrically connected; one end of the above B relay is electrically connected to the B straight section of the main copper piece, and the other end is electrically connected to the branch copper piece; one end of the above-mentioned precharge resistor is electrically connected to the branch copper piece, and the other end is electrically connected to the B copper row Connection; one end of the above-mentioned A fuse is electrically connected to the A end of the L-shaped copper sheet, and the other end is electrically connected to the A copper sheet; one end of the above-mentioned B fuse is electrically connected to the B end of the L-shaped copper sheet, and the other end is electrically connected to the B copper sheet Connection; one end of the above C fuse is electrically connected to the C end of the h-shaped copper sheet, and the other end is electrically connected to the C copper sheet; one end of the above C fuse is electrically connected to the D end of the h-shaped copper sheet, and the other end is electrically connected to the D copper sheet connection.

The A negative electrode of the A plug is electrically connected to the B negative electrode of the B plug through a copper bar; the A copper sheet is used as the positive output terminal to be electrically connected to the positive pole of the PTC; the above B copper sheet is used as the output terminal positive electrode to be electrically connected to the positive pole of the car air conditioner; The copper sheet C is used as the positive electrode of the output end to be electrically connected to the positive pole of the AC power supply; the copper sheet D is used as the positive electrode of the output end to be electrically connected to the positive pole of the DC power supply.

The negative pole of the PTC, the negative pole of the car air conditioner, the negative pole of the AC power supply and the negative pole of the DC power supply are electrically connected to the negative pole A of the A plug or directly connected to the negative pole A of the A plug through a U-shaped copper bar.

A copper sheet is the anode of the A output terminal, the B copper sheet is the anode of the B output terminal, the C copper sheet is the anode of the C output terminal, and the D copper sheet is the anode of the D output terminal.

As a further improvement of this technology, the A copper sheet, the B copper sheet, the C copper sheet and the D copper sheet of the above-mentioned busbar board each have an electrical contact hole; the L-shaped copper sheet A and B ends of the above-mentioned busbar board There is an electrical connection hole at each end and E end; both ends of the supporting copper sheet of the above-mentioned busbar board each have an electrical connection hole; each end of the main copper sheet A of the above-mentioned busbar board has an electrical connection hole at both ends For the electrical connection hole, each of the C end and the D end of the h-shaped section has an electrical connection hole, and each of the central and end portions of the main copper sheet has an electrical connection hole.

One end of the above-mentioned main fuse is fixed and electrically connected with the electrical connection hole at the copper bar A, and the other end is fixed and electrically connected with the corresponding electrical connection hole at one end of the straight section of the main copper sheet A; One end is fixed and electrically connected with the corresponding electrical connection hole of the main copper sheet A straight section, and the other end is fixed and electrically connected with the electrical connection hole of the B copper bar by bolts; one end of the above-mentioned relay A is corresponding to the main copper sheet B straight section The electrical connection holes are fixed and electrically connected by bolts, the other end is fixed and electrically connected with the electrical connection holes of the L-shaped copper sheet E end by bolts; the above-mentioned B relay one end and the corresponding electrical connection holes of the straight section of the main copper sheet B are fixed by bolts and electrically connected. Connected, the other end is fixed and electrically connected with the corresponding electrical connection hole of the supporting copper sheet; one end of the above-mentioned pre-charge resistor is fixed and electrically connected with the corresponding electrical connection hole of the supporting copper sheet by bolts, and the other end is electrically connected with the B copper bar; One end of the above-mentioned A fuse is fixed and electrically connected with the electrical connection hole of the L-shaped copper piece A, and the other end is fixed and electrically connected with the electrical connection hole of the A copper piece by bolts; one end of the above-mentioned B fuse is fixed and electrically connected with the L-shaped copper piece B The electrical connection holes of one end are fixed and electrically connected by bolts, and the electrical connection holes of the other end and the B copper sheet are fixed and electrically connected by bolts; one end of the above-mentioned C fuse and the electrical connection holes of the h-shaped copper sheet C are fixed and electrically connected by bolts, The electrical connection hole of the other end and the C copper sheet is fixed and electrically connected by bolts; the electrical connection hole of one end of the above-mentioned C fuse and the H-shaped copper sheet D end is fixed and electrically connected by bolts, and the other end is connected to the electrical connection hole of the D copper sheet. The bolts are fixed and electrically connected.

The copper bar between the negative electrode A and the negative electrode B is electrically connected to the negative electrode A and the negative electrode B by means of bolts.

As a further improvement of the present technology, the above-mentioned U-shaped copper bar has a supporting end at both ends, and the U-shaped copper bar is buried in the middle layer of the busbar board through the supporting ends at both ends.

As a further improvement of the present technology, the width end of the busbar board equipped with U-shaped copper bars has a mounting hole at one corner and a branch cut at the other corner; the U-shaped buckle with limiting teeth is fixed in the branch cut away from the installation On the inner wall of the hole; one end of the U-shaped copper bar has a rotating end, and the other end is fixedly connected with an elastic plate through a fixed end; the side of the elastic plate has limit teeth, and the elastic plate has a dial block; the limit teeth of the elastic plate are U-shaped The limit teeth of the buckle are used for limit coordination; the B threaded sleeve for fastening the busbar plate and the U-shaped copper bar is located directly below the mounting hole of the busbar plate, the top of the B threaded sleeve has a B washer; the middle of the screw has an A washer and The upper surface of the A washer is fixedly equipped with two pillars. The acute angle formed by the connecting line between the two pillars and the central axis of the screw is between 20° and 30°. The connecting line between the two pillars and the width end of the busbar board Vertical, the connecting line between the two pillars is located between the central axis of the screw and the length side of the busbar plate away from the branch cut. The top of the screw is dome with a slot on the dome; the rotating end of the U-shaped copper bar is rounded The hole passes through the upper end of the screw and is matched with the A washer; the internal thread of the A nut is threaded with the external thread of the screw, and the A nut is extrusion-fitted with the two pillars; the external thread of the screw is threaded with the internal thread of the B thread sleeve Cooperate.

As a further improvement of the present technology, the above D fuse, C fuse, B fuse and A fuse are installed on the busbar board with a single-sided fastening bolt, and are electrically connected to the corresponding circuit.

As a further improvement of the present technology, the above-mentioned single-sided fastening bolt includes a regular hexagonal ring, a C threaded sleeve, a C nut, a guide post, a gear, a swing plate, a sliding rod, and a swivel bar, wherein the C threaded sleeve passes through the circle connecting the copper sheet The hole enters into the electrical connection hole of the busbar board; the upper end of the C thread sleeve has a positive hexagonal ring, and the lower end has a ring bevel; the two inner walls of the positive hexagonal ring are symmetrically opened with two limit grooves; C thread The inner sleeve near the lower end of the sleeve has two gears installed axially symmetrically, and each gear is fixedly equipped with a swing plate; a guide post is fixed in the middle of the C thread sleeve; the top of the sliding rod is symmetrically equipped with two rotating bars, the lower end Passing through the guide post and between the two gears, a segment of ring teeth is distributed at the lower end of the sliding rod, and a segment of ring teeth meshes with the two gears; the internal thread of the C nut is threaded with the external thread of the C thread sleeve; the above-mentioned positive hexagon ring The distance between the two symmetrical sharp corners of the outer ring surface is equal to the diameter of the outer surface of the C thread sleeve; the distance from the end of the above-mentioned rotating bar away from the sliding rod to the center axis of the sliding rod is less than the inner corner of the positive hexagon ring to the positive hexagon ring The distance of the axis; the distance from the end of the rotating bar away from the sliding rod to the central axis of the sliding rod is greater than the shortest distance from the inner wall of the regular hexagonal ring to the central axis of the regular hexagonal ring. The setting of the distance from the end of the rotating bar away from the sliding rod to the central axis of the sliding rod is to ensure that the rotating bar can be screwed into the corresponding limit groove when rotating, thereby restricting the axial up and down movement of the sliding rod.

The A plug and B plug in the present invention adopt the existing technology, preferably the Tyco HV800 connector socket; the main contactor, relay and fuse in the present invention are purchased according to actual needs; the main contactor and relay in the present invention The low-voltage output signal is controlled by BMS.

In the present invention, the acute angle formed by the connecting line between the two pillars and the central axis of the screw is between 20° and 30°, the connecting line between the two pillars is perpendicular to the width end of the busbar, and the two pillars are The connecting line is located between the central axis of the screw and the length side of the busbar plate away from the branch cut; this design is that it is convenient for the rotating end of the U-shaped copper bar to swing around the screw in a large range to ensure the fixing of the U-shaped copper bar The end can be completely rotated out of the busbar board, which satisfies the design purpose of the present invention.

The layout of A copper sheet, B copper sheet, C copper sheet, D copper sheet, main copper sheet, L-shaped copper sheet and branch copper sheet in the present invention is defined according to the electrical schematic diagram and the interface position of each branch electrical device Scheme.

Compared with the prior art, the beneficial effects of the present invention:

1. The high-voltage current output by the on-board battery is transmitted to the composite busbar of the present invention, and is electrically connected to different on-board electrical components through corresponding fuses. When the current shunted on the composite busbar of the present invention is too high, the corresponding fuse can be automatically disconnected, thereby avoiding the overload protection of the corresponding on-board electrical components.

2. The composite busbar of the present invention is designed in the form of integrated circuits, which is very convenient for the circuit line interfaces of different on-board electrical components to be electrically connected with the corresponding interfaces of the composite busbar of the present invention, which solves the needs of different traditional on-board electrical components. The problem of easy connection error or reverse connection when each individual electrical connection is made. The composite busbar of the present invention improves the modularity of circuit integration, reduces manual assembly cost, has good integration effect, high assembly efficiency, can effectively compress the space of the whole machine, and is very convenient for maintenance and installation.

3. The composite busbar of the present invention adopts a structure in which the positive and negative electrodes are stacked in parallel, which reduces the line distribution inductance, thereby reducing the reverse peak voltage and current at both ends of the power element, and reducing the power device's requirements for the voltage and current protection absorption circuit. Improve the reliability and stability of power device operation.

4. Generally, the composite busbar technology is mainly applied to wind power photovoltaics, and the composite busbar of the present invention is applied to automobiles, and the original single-chip copper strip electric connection fuse and contactor/relay combination scheme is optimized for integrated circuit modularization. It can be regarded as a highway of power distribution system. The composite busbar can be installed at one time and is not easy to make mistakes. The composite busbar has a compact structure, which reduces the size of the whole machine and reduces the cost of the whole machine. The densely stacked structure of the composite busbar, the stray inductance value reaches the nh level. The composite busbar of the present invention can increase the electric capacity by changing the laminated material. The copper sheet in the composite busbar of the present invention adopts a sheet-like structure and has good heat dissipation performance, the copper sheet can be completely covered with the structure, and the service life reliability is greatly improved.

5. The present invention adopts the design of U-shaped copper bar, A nut, A washer, B threaded sleeve, elastic plate, limit gear, shift block, pillar, screw and B washer, so that the U-shaped copper bar is bolted to the corresponding line When tightening and electrically connecting, the U-shaped copper bar can be placed on one side of the busbar plate to make the installation of the bolts more convenient, greatly improving the installation efficiency, and easy to disassemble during maintenance.

6. The advantages of the design of the single-sided fastening bolt used in the present invention are: first, compared with the traditional single-sided bolt installation technology, the one-side fastening bolt of the present invention requires less space at the end where the nut is not installed; second, Compared with the traditional installation method of bolts and nuts, the single-sided fastening bolts of the present invention only need to be installed on one side, which is convenient for fastening and installation, and also for disassembly; third, compared to the bolt fastening structure, the present invention The single-sided fastening bolts use the rotating bar located in the limit slot and the limit contact between the two swing plates and the lower end of the electrical connection hole to fasten the connecting copper plate on the busbar. The strength of the bolt fastening is Limited; but for the fastening of the connecting copper sheets on the busbar board, the required fastening does not need to be great, so the single-sided fastening bolt of the present invention meets the strength of the fastening and connecting copper sheets, and also It has the advantage of being used in a narrow space, and the range of use is larger.

Description of the drawings

Figure 1 is a schematic diagram of the installation of the composite busbar, A plug and B plug.

Figure 2 is a schematic diagram of the A plug and B plug structure.

Figure 3 is a schematic diagram of the busbar board structure.

Figure 4 is a schematic diagram of the middle layer of the busbar board.

Figure 5 is an enlarged schematic diagram of the installation of the U-shaped copper bar.

Fig. 6 is a schematic diagram of the installation section of the rotating end of the U-shaped copper bar and the matching of the rotating end of the U-shaped copper bar with the A washer.

Figure 7 is a schematic diagram of the structure at both ends of the U-shaped copper bar and the installation diagram of the U-shaped buckle.

Fig. 8 is a schematic diagram of the limiting cooperation between the upper limit teeth of the U-shaped buckle and the upper limit teeth of the elastic plate.

Figure 9 is a schematic diagram and a cross-sectional schematic diagram of the tightening of the C threaded sleeve and the C nut.

Fig. 10 is a schematic diagram of the structure of the regular hexagonal ring and the revolving bar, and the top view of the cooperation of the regular hexagonal ring and the revolving bar.

Fig. 11 is a schematic diagram of the mating of the connecting copper sheet and the electrical connection hole and the structure diagram of the ring teeth.

Figure 12 is a schematic cross-sectional view of the internal structure of the C threaded sleeve and an enlarged view of the gear meshing with the ring teeth.

Figure 13 is the electrical schematic diagram of the composite busbar.

The name of the label in the figure: 1. A plug; 2. A positive pole; 3. A negative pole; 4. B plug; 5. B negative pole; 6, B positive pole; 7. A copper bar; 8, B copper bar; 9, female Arrangement board; 10, main contactor; 12, A relay; 13, B relay; 14, D fuse; 15, C fuse; 16, B fuse; 17, A fuse; 18, main fuse; 19 , U-shaped copper bar; 20, middle layer; 21, surface insulation layer; 22, A copper sheet; 23, B copper sheet; 24, C copper sheet; 25, D copper sheet; 26, main copper sheet; 27, A Straight section; 28, L-shaped section; 29, B straight section; 30, h-shaped section; 31, L-shaped copper sheet; 32, A end; 33, B end; 34, C end; 35, D end; 36, Main incision; 37, copper plate; 38, E end; 40, U-shaped buckle; 41, branch incision; 42, fixed end; 43, A nut; 44, A washer; 45, B threaded sleeve; 46, rotating end ; 48. Elastic plate; 49. Limiting tooth; 50. Dial block; 51. Mounting hole; 52. Pillar; 53, Slotted mouth; 54, Screw rod; 55, B washer; 56, Turning strip; 57, Hexagon Ring; 58, C thread sleeve; 59, C nut; 60, guide post; 61, ring gear; 62, gear; 63, swing plate; 64, sliding rod; 66, limit groove; 67, ring bevel; 68, Connect the copper sheet; 69, branch end; 70, electrical connection hole; 71, precharge resistor.

detailed description

The present invention will be described below with reference to the accompanying drawings. The structural ratios of the accompanying drawings are only schematic, and the structural ratios can be specified according to actual needs; however, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present disclosure. . In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily obscuring the concept of the present disclosure. All terms (including technical and scientific terms) used herein have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used here should be interpreted as having meanings consistent with the context of this specification, and should not be interpreted in an idealized or overly rigid manner.

A vehicle-mounted controller composite busbar, as shown in Figure 1, it includes a busbar board 9 with one input and five output terminals, A relay 12, D fuse 14, C fuse 15, B fuse 16, A fuse 17, main fuse 18, main contactor 10, pre-charging resistor 71, B relay 13, as shown in Figures 3, 4, and 5, where the busbar board 9 consists of two surface insulating layers 21 and an intermediate layer 20 The intermediate layer 20 is located between the two surface insulating layers 21, and the intermediate layer 20 is composed of a conductor and an insulating layer; the five output terminals of the busbar board 9 are A output, B output, C output, and D output. Terminal and E output terminal.

As shown in Figure 13, the positive pole of the input end of the busbar board 9 is electrically connected to the positive pole of the E output terminal through the main fuse 18, the main contactor 10; the positive pole of the input end of the busbar board 9 is through the main fuse 18, the B relay 13, and the precharge Resistor 71 is electrically connected to the positive electrode of the E output end; the positive electrode of the input end of the busbar board 9 is electrically connected to the positive electrode of the output end A through the main fuse 18, A relay 12, and A fuse 17; the positive electrode of the input end of the busbar board 9 is electrically connected through the main fuse 18. A relay 12 and B fuse 16 are electrically connected to the positive pole of the B output terminal; the positive pole of the input terminal of the busbar board 9 is electrically connected to the positive pole of the output terminal C through the main fuse 18 and the C fuse 15; the positive pole of the input terminal of the busbar board 9 The main fuse 18 and the D fuse 14 are electrically connected to the positive electrode of the D output terminal.

The negative poles of the input end of the busbar board 9 are electrically connected to the negative poles of the five output ends, respectively.

The intermediate layer 20 of the above-mentioned busbar board 9 is glued to bond the two surface insulating layers 21.

As shown in FIGS. 1 and 2, the input end of the busbar board 9 is electrically connected to the battery through the A plug 1; the E output end of the busbar board 9 is electrically connected to the motor controller through the B plug 4.

As shown in Figures 3 and 4, both ends of the above-mentioned busbar board 9 in the longitudinal direction are symmetrically fixed with copper bar A 7 and copper bar B 8; the longitudinal side of the busbar board 9 has a main cut 36, the main cuts 36, A The copper bars 7 and B copper bars 8 are located on the same side of the bus bar board 9, the main cut 36 is located between the A copper bar 7 and the B copper bar 8; the middle layer 20 of the bus bar board 9 is along the width end of the A copper bar 7 A copper sheet 22, B copper sheet 23, C copper sheet 24, and D copper sheet 25 are successively installed in the width direction of the busbar board 9; the middle layer 20 of the busbar board 9 is installed near the width end of the B copper bus 8. Copper sheet 26, the main copper sheet 26 is composed of A straight section 27, L-shaped section 28, B straight section 29 and h-shaped section 30 connected in sequence. The A straight section 27 is located on the side of the middle layer 20 with the main cut 36, B The straight section 29 is located at the width end of the middle layer 20 close to the B copper bar 8, and the h-shaped section 30 with the C end 34 and the D end 35 is located on the side of the middle layer 20 away from the main cut 36; the middle layer 20 is installed with an L-shaped section The copper sheet 31, the L-shaped copper sheet 31 with the A end 32, the B end 33 and the E end 38 is located between the A straight section 27 and the h-shaped section 30; the supporting copper between the B straight section 29 and the h-shaped section 30 The piece 37 is installed on the middle layer 20; the A end 32 and the B end 33 on the L-shaped copper piece 31 correspond to the positions of the A copper piece 22 and the B copper piece 23 respectively; the C end 34 and the D end on the h-shaped section 30 35 respectively correspond to the positions of the C copper sheet 24 and the D copper sheet 25; the U-shaped copper bar 19 is fixedly mounted on the width end of the busbar board 9 close to the A copper bar 7.

The places where A copper sheet 22, B copper sheet 23, C copper sheet 24, D copper sheet 25, L-shaped copper sheet 31, main copper sheet 26 and branch copper sheet 37 are not installed in the middle layer 20 of the above busbar are filled with insulation. material.

As shown in Figures 1 and 2, the A positive pole 2 of the A plug 1 is electrically connected to the A copper bar 7, and the B positive pole 6 of the B plug 4 is electrically connected to the B copper bar 8; as shown in Figures 1, 3, and 4, the above One end of the main fuse 18 is electrically connected to the A copper bar 7 and the other end is electrically connected to one end of the A straight section 27 of the main copper sheet 26; one end of the main fuse 18 of the main contactor 10 is electrically connected to the A straight section 27 of the main copper sheet 26. The other end is electrically connected to the B copper bar 8; one end of the A relay 12 is electrically connected to the B straight section 29 of the main copper sheet 26, and the other end is electrically connected to the E end 38 of the L-shaped copper sheet 31; one end of the B relay 13 It is electrically connected to the B straight section 29 of the main copper sheet 26, and the other end is electrically connected to the branch copper sheet 37; one end of the precharge resistor 71 is electrically connected to the branch copper sheet 37, and the other end is electrically connected to the B copper bar 8; the above A is fused One end of the device 17 is electrically connected to the A end 32 of the L-shaped copper sheet 31, and the other end is electrically connected to the A copper sheet 22; one end of the above-mentioned B fuse 16 is electrically connected to the B end 33 of the L-shaped copper sheet 31, and the other end is connected to the B copper sheet 31. The piece 23 is electrically connected; one end of the above-mentioned C fuse 15 is electrically connected to the C terminal 34 of the h-shaped copper piece, and the other end is electrically connected to the C copper piece 24; one end of the above-mentioned C fuse 15 is electrically connected to the D terminal 35 of the h-shaped copper piece , The other end is electrically connected to the D copper sheet 25.

The A negative electrode 3 of the A plug 1 is electrically connected to the B negative electrode 5 of the B plug 4 through a copper bar; as shown in Figure 4, the A copper sheet 22 is used as the output terminal positive electrode and the PTC positive electrode is electrically connected; the B copper sheet 23 is used as The positive pole of the output terminal is electrically connected to the positive pole of the vehicle air conditioner; the above-mentioned C copper sheet 24 serves as the positive pole of the output terminal and is electrically connected to the positive pole of the AC power supply; the above D copper sheet 25 serves as the positive pole of the output terminal and is electrically connected to the positive pole of the DC power supply. The above-mentioned B copper bar 8 serves as the positive electrode of the E output terminal.

The negative pole of the PTC, the negative pole of the car air conditioner, the negative pole of the AC power supply and the negative pole of the DC power supply are electrically connected to the negative pole 3 of the A plug 1 or directly connected to the negative pole 3 of the A plug 1 through the U-shaped copper bar 19.

The A copper sheet 22 is the anode of the A output end, the B copper sheet 23 is the anode of the B output end, the C copper sheet 24 is the anode of the C output end, and the D copper sheet 25 is the anode of the D output end.

As shown in Figures 3 and 4, the A copper sheet 22, the B copper sheet 23, the C copper sheet 24 and the D copper sheet 25 of the above-mentioned busbar board 9 each have an electrical contact hole 70; Each of the A-end 32, the B-end 33 and the E-end 38 of the type copper sheet 31 has an electrical connection hole 70; the above-mentioned busbar board 9 has an electrical connection hole 70 at both ends of the supporting copper sheet 37; Each of the two ends of the straight section 27 of the main copper sheet 26A of the board 9 has an electrical contact 70, and the C end 34 and the D end 35 of the h-shaped section 30 each have an electrical contact 70. The middle of the main copper sheet 26 and Each of the ends has an electrical contact hole 70.

One end of the above-mentioned main fuse 18 is fixed and electrically connected with the electrical connection hole 70 at the A copper bar 7, and the other end is fixed and electrically connected with the corresponding electrical connection hole 70 at one end of the main copper sheet 26A straight section 27; One end of the main fuse 18 of the contactor 10 is fixed and electrically connected with the corresponding electrical connection hole 70 of the straight section 27 of the main copper sheet 26A, and the other end is fixed and electrically connected with the electrical connection hole 70 of the B copper bar 8 by bolts; One end of the relay 12 is fixed and electrically connected with the corresponding electrical connection hole 70 of the straight section 29 of the main copper sheet 26B by bolts, and the other end is fixed and electrically connected with the electrical connection hole 70 of the L-shaped copper sheet 31E end 38 by bolts; the above-mentioned B relay 13 One end is fixed and electrically connected to the corresponding electrical connection hole 70 of the straight section 29 of the main copper sheet 26B by bolts, and the other end is fixed and electrically connected to the corresponding electrical connection hole 70 of the supporting copper sheet 37 by bolts; The corresponding electrical connection hole 70 of the copper sheet 37 is fixed and electrically connected by bolts, and the other end is electrically connected to the B copper bar 8; the electrical connection hole 70 between one end of the A fuse 17 and the L-shaped copper sheet 31A end 32 is fixed by bolts and electrically connected. The other end is fixed and electrically connected to the electrical connection hole 70 of the A copper sheet 22 by bolts; one end of the B fuse 16 and the electrical connection hole 70 of the L-shaped copper sheet 31B end 33 are fixed and electrically connected by bolts, and the other end is The electrical connection hole 70 of the B copper sheet 23 is fixed and electrically connected by bolts; one end of the aforementioned C fuse 15 is fixed and electrically connected to the electrical connection hole 70 of the h-shaped copper sheet C end 34 by bolts, and the other end is connected to the C copper sheet 24 The electrical connection hole 70 is fixed and electrically connected by bolts; one end of the above-mentioned C fuse 15 is fixed and electrically connected with the electrical connection hole 70 of the h-shaped copper sheet D end 35 by bolts, and the other end passes through the electrical connection hole 70 of the D copper sheet 25 The bolts are fixed and electrically connected.

The copper bars between the A negative electrode 3 and the B negative electrode 5 are electrically connected to the A negative electrode 3 and the B negative electrode 5 in a bolted manner.

As shown in FIGS. 3 and 4, the U-shaped copper bar 19 has supporting ends 69 at both ends, and the U-shaped copper bar 19 is buried in the middle layer 20 of the busbar board 9 through the supporting ends 69 at both ends.

As shown in Figures 3 and 7, the width end of the busbar board 9 with U-shaped copper bars 19 is provided with a mounting hole 51 at one corner, and a branch cut 41 at the other corner; U-shaped buckle 40 with limiting teeth 49 It is fixedly mounted on the inner wall of the branch cut 41 away from the mounting hole 51; one end of the U-shaped copper bar 19 has a rotating end 46, and the other end is fixedly connected to an elastic plate 48 through a fixed end 42; the side of the elastic plate 48 has a limiting tooth 49, which is elastic The plate 48 is provided with a shift block 50; as shown in Figure 8, the limiting teeth 49 of the elastic plate 48 and the limiting teeth 49 of the U-shaped buckle 40 perform limiting cooperation; as shown in Figures 5 and 6, the busbar plate 9 The B threaded sleeve 45 fastened to the U-shaped copper bar 19 is located directly below the mounting hole 51 of the busbar plate 9. The top of the B threaded sleeve 45 has a B washer 55; the middle of the screw 54 has an A washer 44 and the upper surface of the A washer 44 is fixed. Equipped with two pillars 52, the acute angle formed by the line between the two pillars 52 and the central axis of the screw 54 is between 20° and 30°, and the line between the two pillars 52 and the width end of the busbar 9 Vertical, the connecting line between the two pillars 52 is located between the central axis of the screw 54 and the length side of the busbar 9 away from the branch cut 41. The top of the screw 54 is a dome with a slot 53 on the dome; U-shaped copper The round hole on the rotating end 46 of the row 19 passes through the upper end of the screw 54 and is matched with the A washer 44; the internal thread of the A nut 43 is threaded with the external thread of the screw 54, and the A nut 43 is extrusion-fitted with the two pillars 52 ; The external thread of the screw 54 and the internal thread of the B threaded sleeve 45 are threadedly matched.

The above-mentioned D fuse 14, C fuse 15, B fuse 16, and A fuse 17 are installed on the busbar board 9 with single-sided fastening bolts, and are electrically connected to corresponding circuits.

As shown in Figures 9, 10, 11, and 12, the above-mentioned single-sided fastening bolts include a regular hexagonal ring 57, a C threaded sleeve 58, a C nut 59, a guide post 60, a gear 62, a swing plate 63, a sliding rod 64, and a swivel bar. 56, as shown in Figures 9 and 11, where the C threaded sleeve 58 passes through the circular hole connecting the copper sheet 68 and enters the electrical connection hole 70 of the busbar board 9; as shown in Figures 10 and 12, the C threaded sleeve 58 The upper end has a positive hexagonal ring 57, and the lower end has a ring slope 67; the two inner walls of the positive hexagonal ring 57 are symmetrically opened with two limiting grooves 66; the C threaded sleeve 58 is installed in the inner sleeve close to the lower end by axisymmetrical There are two gears 62, each gear 62 is fixed with a swing plate 63; a guide post 60 is fixed in the middle of the C threaded sleeve 58; the top of the sliding rod 64 is symmetrical with two rotating bars 56, and the lower end passes through the guide post 60 is located between the two gears 62. As shown in Figures 9 and 11, a section of ring teeth 61 is distributed at the lower end of the sliding rod 64, and a section of ring teeth 61 meshes with two gears 62; the internal thread of the C nut 59 and the C thread sleeve The outer thread of 58 is threaded; as shown in Figure 10, the distance between the two symmetrical sharp corners of the outer ring surface of the above-mentioned regular hexagonal ring 57 is equal to the diameter of the outer surface of the C-threaded sleeve 58; the above-mentioned swivel 56 moves away from sliding The distance from one end of the rod 64 to the central axis of the sliding rod 64 is less than the distance from the inner corner end of the regular hexagon ring 57 to the central axis of the regular hexagon ring 57; The shortest distance from the inner wall of the ring 57 to the central axis of the regular hexagonal ring 57. The distance from the end of the rotating bar 56 away from the sliding rod 64 to the central axis of the sliding rod 64 is set to ensure that the rotating bar 56 can be screwed into the corresponding limit groove 66 when rotating, thereby moving the sliding rod 64 up and down in the axial direction. Make restrictions.

The A plug 1 and the B plug 4 in the present invention adopt the existing technology, preferably the Tyco HV800 connector socket; the main contactor 10, the relay and the fuse in the present invention are purchased according to actual needs; the main contact in the present invention The low-voltage output signals of the device 10 and the relay are controlled by the BMS.

In the present invention, the acute angle formed by the connecting line between the two pillars 52 and the central axis of the screw 54 is between 20° and 30°, and the connecting line between the two pillars 52 is perpendicular to the width end of the busbar board 9. The connecting line between the two pillars 52 is located between the central axis of the screw 54 and the length side of the busbar plate 9 away from the branch cut 41; this design is that it is convenient for the rotating end 46 of the U-shaped copper bar 19 to surround the screw 54. The swing of the range ensures that the fixed end 42 of the U-shaped copper bar 19 can be completely rotated out of the busbar board 9, which satisfies the design objective of the present invention.

The layout of the A copper sheet 22, the B copper sheet 23, the C copper sheet 24, the D copper sheet 25, the main copper sheet 26, the L-shaped copper sheet 31, and the branch copper sheet 37 in the present invention is based on the electrical schematic diagram and the branches The location of the electrical device interface defines the layout plan.

When the composite busbar of the present invention is actually used, the high voltage current of the vehicle battery is input to the composite busbar through the A plug 1. When the current on the composite busbar is constant, the constant current is passed through the main fuse 18 and the A fuse 17 , B fuse 16, C fuse 15 and D fuse 14 flow from the output terminal on the composite busbar; when the voltage is unstable, especially when the voltage is too high, the current on the composite busbar is too high, then the main fuse If the melt in the fuse 18 or A fuse 17 or B fuse 16 or C fuse 15 or D fuse 14 is melted, then the circuit where the corresponding melt melted fuse is located is disconnected, thereby overloading the corresponding on-board electrical components protection. When the main contactor 10 on the busbar board 9 encounters an excessive electric load, the main contactor 10 connects and cuts off the circuit to play the role of load protection. In addition, the main contactor 10 can support the busbar board 9 to increase the contact area between the busbar board 9 and the air, and improve the heat dissipation performance of the busbar board 9 in a high-pressure environment.

The present invention is realized by the design of U-shaped copper bar 19, A nut 43, A washer 44, B threaded sleeve 45, elastic plate 48, limit tooth 49, shift block 50, pillar 52, screw 54 and B washer 55 The implementation process: the B threaded sleeve 45 is located directly below the mounting hole 51 of the busbar board 9, the B washer 55 on the B threaded sleeve 45 supports the busbar board 9 in a wider range; the lower end of the screw 54 passes through the mounting hole 51 Then, use a flat-head screwdriver to insert the flat-headed port 53 to screw the lower end of the screw 54 into the B threaded sleeve 45. The external thread of the screw 54 and the internal thread of the B threaded sleeve 45 are threaded together; when the A washer 44 performs the process on the busbar 9 After close contact, stop rotating the screw 54. At this time, the B washer 55 and the A washer 44 clamp the busbar plate 9; then, the rotating end 46 of the U-shaped copper bar 19 passes through the upper end of the screw 54 and is located at the A washer 44 Above the rotating end 46, rounded corners are used so that when the rotating end 46 rotates around the screw 54, the rounded corners of the rotating end 46 will not interfere with the movement of the pillar 52; after that, use a hardware tool to screw the A nut 43 into the upper end of the screw 54. Until the A nut 43 is pressed against the top of the pillar 52, the rotating end 46 of the U-shaped copper bar 19 is just between the A washer 44 and the A nut 43, and the thickness of the rotating end 46 of the U-shaped copper bar 19 is basically the thickness of the A washer The distance between 44 and the A nut 43 ensures that the rotating end 46 of the copper bar can rotate between the A washer 44 and the A nut 43. In the initial state, the fixed end 42 of the U-shaped copper bar 19 is located in the main cut 36, and the upper limit teeth 49 of the elastic plate 48 mesh with the upper limit teeth 49 of the U-shaped buckle 40, so that under the condition of no external force, the U-shaped copper The fixed end 42 of the row 19 cannot be detached from the main cut 36; when it is necessary to conveniently fasten and electrically connect the corresponding line to the U-shaped copper row 19 by bolts, manually move the dial 50 away from the U-shaped buckle 40 , The elastic plate 48 deforms away from the U-shaped buckle 40, then the upper limit teeth 49 of the elastic plate 48 and the upper limit teeth 49 of the U-shaped buckle 40 disengage; next, manually swing the U-shaped copper bar 19 from the main cut 36 Just come out, so that the space below the installation bolts of the U-shaped copper busbar 19 is no longer restricted by the busbar board 9, which is very convenient for bolt installation. After the corresponding line and the U-shaped copper bar 19 are fastened and electrically connected by bolts, manually swing the U-shaped copper bar 19 so that the fixed end 42 of the U-shaped copper bar 19 enters the main cut 36 again, and the elastic plate 48 follows the U-shaped copper bar. The fixed end 42 of the row 19 enters the main incision 36. During the process, the limiting teeth 49 of the elastic plate 48 and the limiting teeth 49 of the U-shaped buckle 40 are squeezed. Under the action of the limiting teeth 49 squeezing each other, the elastic plate 48 will adapt itself It is deformed to swing in a small amplitude; when the limit teeth 49 of the elastic plate 48 are completely meshed with the limit teeth 49 of the U-shaped buckle 40, stop swinging the U-shaped copper bar 19.

The connecting copper sheet 68 in the present invention is an electrical connection terminal at one end of the D fuse 14, C fuse 15, B fuse 16, or A fuse 17.

The implementation process of the one-sided tightening bolt in the present invention: when the initial state is not installed in the corresponding electrical connection hole 70, the two swing plates 63 are parallel, the swivel bar 56 is located above the limit slot 66, the swivel bar 56 and the regular hexagon ring 57 The lines facing each other with two sharp corners are collinear. When the space below the busbar board 9 is small, insert the C threaded sleeve 58 through the circular hole connecting the copper sheet 68 and insert it into the corresponding electrical connection hole 70; press down the sliding rod 64, and the ring teeth 61 on the sliding rod 64 drive When the two gears 62 rotate, the two gears 62 drive the two swing plates 63 to swing away from each other; when the two swing plates 63 swing to fit the ring slope 67, the two swing plates 63 cannot continue to swing. When the sliding rod 64 moves downward, the position of the rotary bar 56 is exactly in the same plane as the limit groove 66; next, the rotary bar 56 enters the corresponding limit groove 66, and the rotation of the rotary bar 56 makes the sliding rod 64 The upper ring tooth 61 rotates, and the rotation of the ring tooth 61 does not continue to drive the gear 62 to rotate; since the rotating bar 56 enters the corresponding limit slot 66 and is restricted to move up and down by the sliding rod 64, the rotation of the gear 62 will be restricted, and thus The swing of the swing plate 63 is also restricted. Next, pull the C threaded sleeve 58 to move upward until the two swing plates 63 contact the lower end of the electrical connection hole 70, maintaining the position of the C threaded sleeve 58 at this time, and thread the C nut 59 through the regular hexagon ring 57 and screw it into C On the threaded sleeve 58, the internal thread of the C nut 59 and the external thread of the C thread sleeve 58 are threadedly matched until the C nut 59 and the connecting copper sheet 68 are fastened. In the process of screwing the positive hexagon ring 57 into the C thread sleeve 58, a tool needs to be used to fasten the positive hexagon ring 57 so that the positive hexagon ring 57 can be screwed into the C thread sleeve 58. When the side fastening bolts need to be quickly disassembled, it is only necessary to unscrew the swivel 56 from the corresponding limit groove 66, and then pull up the sliding rod 64 so that the ring tooth 61 drives the gear 62 to rotate in the opposite direction, so that the two swing plates 63 reset swing, the two swing plates 63 are not restricted to the lower end of the electrical connection hole 70, and then the C nut 59 can be pulled directly to quickly remove the entire one-sided fastening bolt from the electrical connection hole 70, or the C nut 59 can be reversely rotated first , Make the bolt loose, and then unscrew the swivel bar.

When the space below the busbar board 9 is smaller, there is no need to completely extend the two swing plates 63 from the electrical connection holes 70 of the busbar board 9, and the electrical connection of the busbar board 9 can be located on the upper part of the two swing boards 63. When in the hole 70, the sliding rod 64 is pressed down, so that the two swing plates 63 gradually extend from the electrical connection hole 70 of the busbar board 9, and the two swing plates 63 can swing away from each other until the two swing plates 63 gradually extend away from each other. The swing plate 63 is in contact with the lower end of the electrical connection hole 70, so that the single-sided fastening bolt of the present invention can be used in a narrower space and a wider range of use.

In the present invention, the two swing plates 63 and the lower end of the electrical connection hole 70 are used to limit the position, and the rotating strip 56 is screwed into the limit slot 66 to further restrict the two swing plates 63. The C nut 59 connects the copper sheet After 68 is fastened to the busbar board 9, there is a large pressure between the rotating bar 56 and the limiting groove 66 at this time. The rotating bar 56 is not easy to move from the limiting groove 66 without manual operation. Swing out in the middle, thus ensuring the tightening effect of the one-sided tightening bolts. In the present invention, the lower end of the C threaded sleeve 58 adopts a ring inclined surface 67, so that the swing angle of the two swing plates 63 away from each other is restricted, so that the two swing plates 63 can swing until they are in contact with the lower end of the electrical connection hole 70. At this time, there is still a certain degree of included angle between the two swinging plates 63 and the lower surface of the busbar board 9, so as to prevent the two swinging boards 63 from squeezing the electrical circuits arranged under the busbar board 9, or not Affects the spatial arrangement of electrical lines under the busbar board 9.

Although the present invention is described in conjunction with the above embodiments, the present invention is not limited to the above embodiments, but only by the appended claims. Those of ordinary skill in the art can easily modify and change them, but It does not depart from the essential concept and scope of the present invention.

Claims

A vehicle-mounted controller composite busbar, which is characterized in that it includes a busbar board with one input terminal and five output terminals, A relay, D fuse, C fuse, B fuse, A fuse, and main fuse , Main contactor, precharge resistor, B relay, where the busbar board is composed of two surface insulation layers and an intermediate layer, the intermediate layer is located between the two surface insulation layers, and the intermediate layer is composed of a conductor and an insulation layer; busbar board The five output terminals are A output terminal, B output terminal, C output terminal, D output terminal and E output terminal in turn;

The positive pole of the input end of the busbar board is electrically connected to the positive pole of the E output terminal through the main fuse and main contactor; the positive pole of the input end of the busbar board is electrically connected to the positive pole of the E output terminal through the main fuse, B relay, and precharge resistor; the busbar board The positive pole of the input terminal is electrically connected to the positive pole of the output terminal A through the main fuse, relay A, and fuse A; the positive pole of the input terminal of the busbar board is electrically connected to the positive pole of the output terminal B through the main fuse, relay A, and fuse B; busbar board The positive pole of the input terminal is electrically connected to the positive pole of the C output terminal through the main fuse and the C fuse; the positive pole of the input terminal of the busbar board is electrically connected to the positive pole of the D output terminal through the main fuse and the D fuse;

The negative poles of the input end of the busbar board are electrically connected with the negative poles of the five output ends respectively.
The vehicle-mounted controller composite busbar according to claim 1, wherein the middle layer of the busbar board is glued to bond two surface insulating layers.
The vehicle-mounted controller composite busbar according to claim 1, wherein the input end of the busbar board is electrically connected to the battery through the A plug; the E output end of the busbar board is connected to the motor controller through the B plug Make electrical connections.
A vehicle-mounted controller composite busbar according to claim 3, characterized in that: A copper bar and B copper bar are symmetrically fixed at both ends of the length direction side of the busbar plate; the length direction side of the busbar plate has a main Incision, the main incision, copper bar A and copper bar B are located on the same side of the busbar board, and the main incision is located between the copper bar A and the copper bar B; the middle layer of the busbar board is along the width end of the copper bar A along the busbar board A copper sheet, B copper sheet, C copper sheet, and D copper sheet are successively installed in the width direction at equal intervals; the main copper sheet is installed at the width end of the busbar board near the width end of the B copper bus, and the main copper sheet goes straight from A in turn Section, L-shaped section, B-shaped straight section and h-shaped section are connected. A straight section is located on the side with the main cut in the middle layer, and the B straight section is located at the width end of the middle layer close to the width end of the B copper bar. The h has a C end and a D end. The section is located at the side of the middle layer away from the main cut; the middle of the middle layer is installed with an L-shaped copper sheet, and the L-shaped copper sheet with A-end, B-end and E-end is located between the A straight section and the h-shaped section; it is located at the B straight section. The supporting copper pieces between the section and the h-shaped section are installed in the middle layer; the A and B ends on the L-shaped copper piece correspond to the positions of the A and B copper pieces respectively; the C and D ends on the h-shaped section Respectively correspond to the positions of C copper and D copper; U-shaped copper bars are fixedly mounted on the width end of the busbar board close to the A copper bars;

The places where A copper sheet, B copper sheet, C copper sheet, D copper sheet, L-shaped copper sheet, main copper sheet and branch copper sheet are not installed in the middle layer of the above-mentioned busbar are filled with insulating materials;

The A positive pole of the A plug is electrically connected to the A copper bar, and the B positive pole of the B plug is electrically connected to the B copper bar; one end of the above-mentioned main fuse is electrically connected to the A copper bar, and the other end is electrically connected to the end of the A straight section of the main copper sheet One end of the main fuse of the main contactor is electrically connected to the A straight section of the main copper sheet, and the other end is electrically connected to the B copper bar; one end of the above A relay is electrically connected to the B straight section of the main copper sheet, and the other end is connected to the L-shaped copper The E end of the piece is electrically connected; one end of the above B relay is electrically connected to the B straight section of the main copper piece, and the other end is electrically connected to the branch copper piece; one end of the above-mentioned precharge resistor is electrically connected to the branch copper piece, and the other end is electrically connected to the B copper row Connection; one end of the above-mentioned A fuse is electrically connected to the A end of the L-shaped copper sheet, and the other end is electrically connected to the A copper sheet; one end of the above-mentioned B fuse is electrically connected to the B end of the L-shaped copper sheet, and the other end is electrically connected to the B copper sheet Connection; one end of the above C fuse is electrically connected to the C end of the h-shaped copper sheet, and the other end is electrically connected to the C copper sheet; one end of the above C fuse is electrically connected to the D end of the h-shaped copper sheet, and the other end is electrically connected to the D copper sheet connection;

The A negative electrode of the A plug is electrically connected to the B negative electrode of the B plug through a copper bar; the A copper sheet is used as the positive output terminal to be electrically connected to the positive pole of the PTC; the above B copper sheet is used as the output terminal positive electrode to be electrically connected to the positive pole of the car air conditioner; C copper sheet is used as the positive output terminal to be electrically connected to the positive pole of the AC power supply; the above-mentioned D copper sheet is used as the output terminal positive pole to be electrically connected to the positive pole of the DC power supply;

The negative pole of the PTC, the negative pole of the car air conditioner, the negative pole of the AC power supply and the negative pole of the DC power supply are electrically connected to the negative pole A of the A plug or directly connected to the negative pole A of the A plug through a U-shaped copper bar;

A copper sheet is the anode of the A output terminal, the B copper sheet is the anode of the B output terminal, the C copper sheet is the anode of the C output terminal, and the D copper sheet is the anode of the D output terminal.
A vehicle-mounted controller composite busbar according to claim 4, characterized in that: the A copper sheet, the B copper sheet, the C copper sheet and the D copper sheet of the busbar board each have an electrical contact hole; Each of the L-shaped copper sheets of the busbar board has an electrical connection hole at the A end, the B end and the E end; the two ends of the supporting copper sheet of the above-mentioned busbar board each have an electrical connection hole; Each of the two ends of the straight section of the main copper sheet A has an electrical connection hole, the C end and the D end of the h-shaped section each have an electrical connection hole, and the middle and the end of the main copper sheet each have an electrical connection hole. ；

One end of the above-mentioned main fuse is fixed and electrically connected with the electrical connection hole at the copper bar A, and the other end is fixed and electrically connected with the corresponding electrical connection hole at one end of the straight section of the main copper sheet A; One end is fixed and electrically connected with the corresponding electrical connection hole of the main copper sheet A straight section, and the other end is fixed and electrically connected with the electrical connection hole of the B copper bar by bolts; one end of the above-mentioned relay A is corresponding to the main copper sheet B straight section The electrical connection holes are fixed and electrically connected by bolts, the other end is fixed and electrically connected with the electrical connection holes of the L-shaped copper sheet E end by bolts; the above-mentioned B relay one end and the corresponding electrical connection holes of the straight section of the main copper sheet B are fixed by bolts and electrically connected. Connected, the other end is fixed and electrically connected with the corresponding electrical connection hole of the supporting copper sheet; one end of the above-mentioned pre-charge resistor is fixed and electrically connected with the corresponding electrical connection hole of the supporting copper sheet by bolts, and the other end is electrically connected with the B copper bar; One end of the above-mentioned A fuse is fixed and electrically connected with the electrical connection hole of the L-shaped copper piece A, and the other end is fixed and electrically connected with the electrical connection hole of the A copper piece by bolts; one end of the above-mentioned B fuse is fixed and electrically connected with the L-shaped copper piece B The electrical connection holes of one end are fixed and electrically connected by bolts, and the electrical connection holes of the other end and the B copper sheet are fixed and electrically connected by bolts; one end of the above-mentioned C fuse and the electrical connection holes of the h-shaped copper sheet C are fixed and electrically connected by bolts, The electrical connection hole of the other end and the C copper sheet is fixed and electrically connected by bolts; the electrical connection hole of one end of the above-mentioned C fuse and the H-shaped copper sheet D end is fixed and electrically connected by bolts, and the other end is connected to the electrical connection hole of the D copper sheet. Bolt fixed and electrically connected;

The copper bar between the negative electrode A and the negative electrode B is electrically connected to the negative electrode A and the negative electrode B by means of bolts.
A vehicle-mounted controller composite busbar according to claim 4, wherein the U-shaped copper bar has supporting ends at both ends, and the U-shaped copper bar is buried in the middle layer of the busbar board through the supporting ends at both ends. .
A vehicle-mounted controller composite busbar according to claim 4, characterized in that: the width end of the busbar plate equipped with U-shaped copper bars is provided with a mounting hole at one corner and a branch notch at the other corner; The U-shaped buckle of the position tooth is fixedly mounted on the inner wall of the branch notch away from the mounting hole; one end of the U-shaped copper bar has a rotating end, and the other end is fixedly connected with an elastic plate through a fixed end; the side of the elastic plate has limit teeth, and the elastic plate It has a shift block; the limit teeth of the elastic plate and the limit teeth of the U-shaped buckle are in position-limiting cooperation; the B threaded sleeve for fastening the busbar plate and the U-shaped copper bar is located directly under the mounting hole of the busbar plate, B The top of the threaded sleeve has a B washer; the middle of the screw has an A washer and two pillars are fixed on the upper surface of the A washer. The acute angle formed by the connecting line between the two pillars and the central axis of the screw is between 20° and 30°. The connecting line between the pillars is perpendicular to the width end of the busbar. The connecting line between the two pillars is located between the central axis of the screw and the length side of the busbar away from the branch cut. The top of the screw is a dome and the dome has A word mouth; the round hole on the rotating end of the U-shaped copper bar passes through the upper end of the screw and is matched with the A washer; the internal thread of the A nut is threaded with the external thread of the screw, and the A nut is extrusion-fitted with the two pillars; The external thread of the screw is threadedly matched with the internal thread of the B threaded sleeve.
A vehicle-mounted controller composite busbar according to claim 1, characterized in that: the D fuse, C fuse, B fuse and A fuse are installed on the busbar board with single-sided fastening bolts, and Electrically connected with the corresponding circuit.
A vehicle-mounted controller composite busbar according to claim 8, characterized in that: the single-sided fastening bolts include a regular hexagonal ring, a C threaded sleeve, a C nut, a guide post, a gear, a swing plate, a sliding rod, and a rotating The C-thread sleeve passes through the circular hole connecting the copper sheet and enters the electrical connection hole of the busbar; the C-thread sleeve has a positive hexagonal ring at the upper end and a ring bevel at the lower end; the two regular hexagonal rings are opposite to each other Two limit grooves are symmetrically opened on the inner wall; two gears are installed in the inner sleeve near the lower end of the C-thread sleeve through axisymmetrically, and a swing plate is fixed on each gear; the center of the C-thread sleeve is fixed with a guide post ; The top end of the sliding rod has two rotating bars symmetrically, the lower end passes through the guide post and is located between the two gears, the lower end of the sliding rod is distributed with a section of ring teeth, a section of ring teeth meshes with the two gears; the internal thread of the C nut and C The outer thread of the threaded sleeve is threaded; the distance between the two symmetrical sharp corners of the outer ring surface of the above-mentioned regular hexagonal ring is equal to the diameter of the outer surface of the C threaded sleeve; the end of the above-mentioned rotating bar is away from the sliding rod to the center axis of the sliding rod The distance from the inner corner of the regular hexagon ring to the central axis of the regular hexagon ring; the distance from the end of the rotating bar away from the sliding rod to the central axis of the sliding rod is greater than the shortest distance from the inner wall of the regular hexagon ring to the central axis of the regular hexagon ring.