CN112713465B - Composite busbar for vehicle-mounted controller - Google Patents

Composite busbar for vehicle-mounted controller Download PDF

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Publication number
CN112713465B
CN112713465B CN202110080649.9A CN202110080649A CN112713465B CN 112713465 B CN112713465 B CN 112713465B CN 202110080649 A CN202110080649 A CN 202110080649A CN 112713465 B CN112713465 B CN 112713465B
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CN
China
Prior art keywords
electrically connected
fuse
copper sheet
shaped
copper
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CN202110080649.9A
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Chinese (zh)
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CN112713465A (en
Inventor
李孟军
余俊
李昌华
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WENZHOU FENGDI CONNECTOR CO Ltd
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WENZHOU FENGDI CONNECTOR CO Ltd
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Publication of CN112713465A publication Critical patent/CN112713465A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/68—Structural association with built-in electrical component with built-in fuse
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
    • H01R25/16—Rails or bus-bars provided with a plurality of discrete connecting locations for counterparts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R27/00—Coupling parts adapted for co-operation with two or more dissimilar counterparts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/26—Connectors or connections adapted for particular applications for vehicles

Abstract

The invention belongs to the technical field of circuit breaker equipment, and particularly relates to a composite bus for a vehicle-mounted controller, which comprises a bus bar board, an A relay, a D fuse, a main fuse and the like, wherein the anode of the input end of the bus bar board is electrically connected with the anode of the output end E through the main fuse and a main contactor; the positive electrode of the input end of the mother row board is electrically connected with the positive electrode of the output end E through the main fuse, the relay B and the pre-charging resistor; the anode of the input end of the mother board is electrically connected with the anode of the output end A through the main fuse, the relay A and the fuse A; the anode of the input end of the mother row board is electrically connected with the anode of the output end of the B through the main fuse, the A relay and the B fuse; the anode of the input end of the mother row board is electrically connected with the anode of the output end of the C through the main fuse and the C fuse; the anode of the input end of the mother board is electrically connected with the anode of the output end of the D through the main fuse and the D fuse; the negative electrodes of the input ends of the mother row plates are respectively electrically connected with the negative electrodes of the five output ends. The invention can be installed at one time, is not easy to make mistakes, has compact structure and is convenient to maintain and install.

Description

Composite busbar for vehicle-mounted controller
Technical Field
The invention belongs to the technical field of circuit breaker equipment, and particularly relates to a composite bus for a vehicle-mounted controller.
Background
At present, electrical components such as a controller, an air conditioner and a PTC of a vehicle-mounted system of a new energy automobile are supplied with power by taking a vehicle-mounted battery as a high-voltage power supply, but under the conditions of low-temperature environment, battery feeding, too high viscosity of lubricating oil or traffic jam, the voltage and current of the vehicle-mounted battery can be frequently output to load peaks of branches due to factors such as starting and stopping, overweight of a vehicle-mounted load and the like, and the components are easily damaged. The inside electric component of car is used for protection circuit current voltage's fuse hardware is more, and different fuses need carry out the circuit electricity respectively and connect, and the joint that numerous circuit electricity are connected more leads to the installation complicated easily, causes the connection error easily. In addition, the vehicle-mounted controller is used for carrying current and protecting the common single setting of the intermediate fuse of current and voltage, and can only be realized through the fuse of the single setting when the current is required to be shunted in a voltage stabilizing way, so that the constancy of the current and voltage cannot be ensured, and further the unstable voltage easily causes damage to the vehicle-mounted controller. In the prior art, the current provided by the vehicle-mounted battery is transmitted to each electrical part through the direct connection of the copper bars, but the constant current transmission cannot be guaranteed by the electric connection mode, and the electrical part is easily damaged due to unstable current. Secondly, some electrical elements or conductive sheets of the existing vehicle-mounted controller are generally fastened by bolts or nuts, and especially when some electrical elements or conductive sheets are located in a narrow space, the installation and the removal of the electrical elements or conductive sheets are very troublesome.
The invention designs a composite busbar for a vehicle-mounted controller to solve the problems.
Disclosure of Invention
In order to solve the defects in the prior art, the invention discloses a composite bus for a vehicle-mounted controller, which is realized by adopting the following technical scheme.
In the description of the present invention, it should be noted that the terms "inside", "below", "upper" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention usually place when using, and are only used for convenience of description and simplification of description, but do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation or be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
The utility model provides a female row of compound for on-vehicle controller which characterized in that: the pre-charging circuit comprises a bus bar board with an input end and five output ends, an A relay, a D fuse, a C fuse, a B fuse, an A fuse, a main contactor, a pre-charging resistor and a B relay, wherein the bus bar board consists of two surface insulating layers and an intermediate layer, the intermediate layer is positioned between the two surface insulating layers, and the intermediate layer consists of a conductor and an insulating layer; five output ends of the mother board are an output end A, an output end B, an output end C, an output end D and an output end E in sequence.
The anode of the input end of the mother row board is electrically connected with the anode of the output end E through the main fuse and the main contactor; the positive electrode of the input end of the mother row board is electrically connected with the positive electrode of the output end E through the main fuse, the relay B and the pre-charging resistor; the anode of the input end of the mother board is electrically connected with the anode of the output end A through the main fuse, the relay A and the fuse A; the anode of the input end of the mother row board is electrically connected with the anode of the output end of the B through the main fuse, the A relay and the B fuse; the anode of the input end of the mother row board is electrically connected with the anode of the output end of the C through the main fuse and the C fuse; the positive pole of the input end of the mother board is electrically connected with the positive pole of the output end of the D through the main fuse and the D fuse.
The negative electrodes of the input ends of the mother row plates are respectively electrically connected with the negative electrodes of the five output ends.
As a further improvement of the technology, the middle layer of the mother board is bonded with the two surface insulating layers through gluing.
As a further improvement of the technology, the input end of the mother board is electrically connected with the battery through an A plug; and the E output end of the mother board is electrically connected with the motor controller through the B plug.
As a further improvement of the technology, the two ends of the length direction side of the mother row plate are symmetrically and fixedly provided with an A copper bar and a B copper bar; the main notch, the A copper bar and the B copper bar are positioned on the same side of the mother row plate, and the main notch is positioned between the A copper bar and the B copper bar; the copper sheets A, the copper sheets B, the copper sheets C and the copper sheets D are sequentially arranged at the position, close to the width end of the copper bar A, of the intermediate layer of the busbar board at equal intervals along the width direction of the busbar board; the main copper sheet is arranged at the position, close to the width end of the B copper bar, of the middle layer of the bus bar board and is formed by sequentially connecting an A straight section, an L-shaped section, a B straight section and an h-shaped section, wherein the A straight section is located on one side, provided with a main notch, of the middle layer, the B straight section is located at the position, close to the width end of the B copper bar, of the middle layer, and the h-shaped section provided with a C end and a D end is located on one side, far away from the main notch, of the middle layer; the middle part of the middle layer is provided with an L-shaped copper sheet, and the L-shaped copper sheet with an A end, a B end and an E end is positioned between the A straight section and the h-shaped section; the copper supporting sheet positioned between the straight section B and the h-shaped section is arranged on the middle layer; the end A and the end B on the L-shaped copper sheet respectively correspond to the positions of the copper sheet A and the copper sheet B one by one; the C end and the D end on the h-shaped section respectively correspond to the C copper sheet and the D copper sheet in position one to one; the U-shaped copper bar is fixedly arranged on the width end of the mother row plate close to the A copper bar.
And the positions of the intermediate layer of the busbar, which are not provided with the A copper sheet, the B copper sheet, the C copper sheet, the D copper sheet, the L-shaped copper sheet, the main copper sheet and the branch copper sheet, are all filled with insulating materials.
The positive electrode A of the plug A is electrically connected with the copper bar A, and the positive electrode B of the plug B is electrically connected with the copper bar B; one end of the main fuse is electrically connected with the A copper bar, and the other end of the main fuse is electrically connected with one end of the A straight section of the main copper sheet; one end of the main contactor is electrically connected with the A straight section of the main copper sheet, and the other end of the main contactor is electrically connected with the B copper bar; one end of the relay A is electrically connected with the straight section B of the main copper sheet, and the other end of the relay A is electrically connected with the end E of the L-shaped copper sheet; one end of the relay B is electrically connected with the straight section B of the main copper sheet, and the other end of the relay B is electrically connected with the branch copper sheet; one end of the pre-charging resistor is electrically connected with the branch copper sheet, and the other end of the pre-charging resistor is electrically connected with the B copper bar; one end of the fuse A is electrically connected with the end A of the L-shaped copper sheet, and the other end of the fuse A is electrically connected with the copper sheet A; one end of the fuse B is electrically connected with the end B of the L-shaped copper sheet, and the other end of the fuse B is electrically connected with the copper sheet B; one end of the C-shaped fuse is electrically connected with the C end of the h-shaped section, and the other end of the C-shaped fuse is electrically connected with the C copper sheet; one end of the D-shaped fuse is electrically connected with the D end of the h-shaped section, and the other end of the D-shaped fuse is electrically connected with the D copper sheet.
The negative electrode A of the plug A is electrically connected with the negative electrode B of the plug B through a copper bar; the copper sheet A is used as the anode of the output end and is electrically connected with the anode of the PTC; the copper sheet B is used as the anode of the output end and is electrically connected with the anode of the vehicle-mounted air conditioner; the C copper sheet is used as the anode of the output end and is electrically connected with the anode of the AC power supply; the D copper sheet is used as the anode of the output end and is electrically connected with the anode of the DC power supply.
The negative pole of the PTC, the negative pole of the vehicle-mounted air conditioner, the negative pole of the AC power supply and the negative pole of the DC power supply are electrically connected with the negative pole A of the plug A through U-shaped copper bars or directly connected with the negative pole A of the plug A.
The copper sheet A is the anode of the output end A, the copper sheet B is the anode of the output end B, the copper sheet C is the anode of the output end C, and the copper sheet D is the anode of the output end D.
As a further improvement of the technology, the copper sheets A, B, C and D of the mother board are respectively provided with an electric connection hole; the A end, the B end and the E end of the L-shaped copper sheet of the mother row board are respectively provided with an electric connection hole; two ends of each copper supporting sheet of the mother row board are respectively provided with an electric connection hole; the two ends of the straight section of the main copper sheet A of the mother row board are respectively provided with an electric connection hole, the C end and the D end of the h-shaped section are respectively provided with an electric connection hole, and the middle part and the end part of the main copper sheet are respectively provided with an electric connection hole.
One end of the main fuse is fixed and electrically connected with the electric connection hole at the copper bar A through a bolt, and the other end of the main fuse is fixed and electrically connected with the corresponding electric connection hole at one end of the straight section A of the main copper sheet through a bolt; one end of the main contactor is fixed and electrically connected with the corresponding electric connection hole of the straight section of the main copper sheet A through a bolt, and the other end of the main contactor is fixed and electrically connected with the electric connection hole of the copper bar B through a bolt; one end of the relay A is fixed and electrically connected with a corresponding electric connection hole of the straight section of the main copper sheet B through a bolt, and the other end of the relay A is fixed and electrically connected with an electric connection hole of the end E of the L-shaped copper sheet through a bolt; one end of the relay B is fixed and electrically connected with the corresponding electric connection hole of the straight section of the main copper sheet B through a bolt, and the other end of the relay B is fixed and electrically connected with the corresponding electric connection hole of the branch copper sheet through a bolt; one end of the pre-charging resistor is fixed and electrically connected with the corresponding electric connection hole of the branch copper sheet through a bolt, and the other end of the pre-charging resistor is electrically connected with the B copper bar; one end of the fuse A is fixed and electrically connected with the electric connection hole at the end A of the L-shaped copper sheet through a bolt, and the other end of the fuse A is fixed and electrically connected with the electric connection hole of the copper sheet A through a bolt; one end of the fuse B is fixed and electrically connected with an electric connection hole at the end B of the L-shaped copper sheet through a bolt, and the other end of the fuse B is fixed and electrically connected with an electric connection hole of the copper sheet B through a bolt; one end of the C-shaped fuse is fixed and electrically connected with the electric connection hole at the end C of the h-shaped section through a bolt, and the other end of the C-shaped fuse is fixed and electrically connected with the electric connection hole of the C copper sheet through a bolt; one end of the D-shaped fuse is fixed and electrically connected with the electric connection hole at the D end of the h-shaped section through a bolt, and the other end of the D-shaped fuse is fixed and electrically connected with the electric connection hole of the D copper sheet through a bolt.
The copper bar between the negative pole A and the negative pole B is respectively and electrically connected with the negative pole A and the negative pole B in a bolt fixed connection mode.
As a further improvement of the technology, the two ends of the U-shaped copper bar are provided with branch ends, and the U-shaped copper bar is buried in the middle layer of the mother board through the branch ends at the two ends.
As a further improvement of the technology, a mounting hole is arranged at one corner of the width end of the mother row plate provided with the U-shaped copper bar, and a branch notch is arranged at the other corner; the U-shaped buckle with the limiting teeth is fixedly arranged on the inner wall of the branch notch far away from the mounting hole; one end of the U-shaped copper bar is provided with a rotating end, and the other end of the U-shaped copper bar is fixedly connected with an elastic plate through a fixed end; the side surface of the elastic plate is provided with a limiting tooth, and the elastic plate is provided with a shifting block; the limiting teeth of the elastic plate are in limiting fit with the limiting teeth of the U-shaped buckle; the B thread bush for fastening the mother row plate and the U-shaped copper bar is positioned right below the mounting hole of the mother row plate, and the top end of the B thread bush is provided with a B gasket; the middle part of the screw is provided with an A washer, the upper surface of the A washer is fixedly provided with two struts, the acute angle formed by connecting lines from the two struts to the central axis of the screw is 20-30 degrees, the connecting line between the two struts is vertical to the width end of the mother row plate, the connecting line between the two struts is positioned between the central axis of the screw and the length side of the mother row plate far away from the branch notch, the top end of the screw is a dome, and the dome is provided with a straight opening; a round hole at the rotating end of the U-shaped copper bar penetrates through the upper end of the screw and is matched with the A washer; the internal thread of the nut A is in threaded fit with the external thread of the screw, and the nut A is in extrusion fit with the two support columns; the external thread of the screw rod is in threaded fit with the internal thread of the B thread sleeve.
As a further improvement of the present technology, the above-described D fuse, C fuse, B fuse, and a fuse are mounted on the mother board using one-sided fastening bolts, and are electrically connected with the corresponding circuits.
As a further improvement of the technology, the single-side fastening bolt comprises a regular hexagonal ring, a C thread sleeve, a C nut, a guide pillar, a gear, a swinging plate, a sliding rod and a rotating strip, wherein the C thread sleeve penetrates through a round hole for connecting copper sheets and enters an electric connection hole of a mother row plate; the upper end of the C thread sleeve is provided with a regular hexagonal ring, and the lower end of the C thread sleeve is provided with a ring inclined plane; two limiting grooves are symmetrically formed in the two inner walls of the right hexagonal ring, which are opposite to each other; two gears are symmetrically arranged in the inner sleeve of the C thread sleeve close to the lower end of the C thread sleeve through an axis, and a swinging plate is fixedly arranged on each gear; a guide pillar is fixedly arranged in the middle of the C thread bush; the top end of the sliding rod is symmetrically provided with two rotating strips, the lower end of the sliding rod penetrates through the guide pillar and is positioned between the two gears, and a section of annular teeth are distributed at the lower end of the sliding rod and are meshed with the two gears; the internal thread of the C nut is in threaded fit with the external thread of the C thread sleeve; the distance between two symmetrical sharp angles of the outer ring surface of the regular hexagonal ring is equal to the diameter of the outer sleeve surface of the C thread sleeve; the distance from one end of the rotating strip, which is far away from the sliding rod, to the central axis of the sliding rod is smaller than the distance from the inner angle end of the regular hexagonal ring to the axis of the regular hexagonal ring; the distance from one end of the rotating strip, which is far 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 axis of the regular hexagonal ring. The distance from one end of the rotating strip, which is far away from the sliding rod, to the central axis of the sliding rod is set so as to ensure that the rotating strip can be screwed into the corresponding limiting groove when rotating, so that the axial up-and-down movement of the sliding rod is limited.
The plug A and the plug B adopt the prior art, and preferably adopt a Thailand HV800 connector socket; the main contactor, the relay and the fuse are purchased according to actual requirements; the low voltage output signals of the main contactor and the relay in the present invention are controlled by the BMS.
The invention requires that the acute angle formed by connecting lines between the two struts and the central axis of the screw is 20-30 degrees, the connecting line between the two struts is vertical to the width end of the mother row plate, and the connecting line between the two struts is positioned between the central axis of the screw and the length side of the mother row plate far away from the branch notch; the design is convenient for the rotating end of the U-shaped copper bar to swing in a large range around the screw rod, the fixed end of the U-shaped copper bar can be ensured to rotate out of the bus bar plate completely, and the design purpose of the invention is met.
The layout of the copper sheet A, the copper sheet B, the copper sheet C, the copper sheet D, the main copper sheet, the L-shaped copper sheet and the branch copper sheet is defined according to an electrical schematic diagram and the interface positions of branch electrical devices.
Compared with the prior art, the invention has the beneficial effects that:
1. high-voltage current output by the vehicle-mounted battery is transmitted to the composite busbar and is electrically connected with different vehicle-mounted electrical components through the corresponding fuse. When the current shunted on the composite busbar is overhigh, the corresponding fuse can be automatically disconnected, so that the overload protection of the corresponding vehicle-mounted electric component is avoided.
2. The composite bus bar is designed in an integrated circuit mode, circuit line interfaces of different vehicle-mounted electrical parts are conveniently and electrically connected with corresponding interfaces of the composite bus bar, and the problem that the traditional vehicle-mounted electrical parts are easy to connect in a wrong mode or in a reverse mode when the traditional vehicle-mounted electrical parts need to be electrically connected independently is solved. The composite bus bar improves the integration level modularization of a circuit, reduces the manual assembly cost, has good integration effect and high assembly efficiency, can effectively compress the space of the whole machine, and is very convenient to maintain and install.
3. The composite bus bar adopts a structural form that the anode and the cathode are laminated and distributed in parallel, reduces the line distribution inductance, thereby reducing the reverse peak voltage and current at two ends of a power element, reducing the requirement of a power device on a voltage and current protection absorption circuit, and improving the reliability and the stability of the operation of the power device.
4. Generally, the composite busbar technology is mainly applied to wind power photovoltaic, and the composite busbar provided by the invention is applied to an automobile, and the integrated circuit modularization is optimized by the scheme that the original single copper bar is electrically connected with a fuse and a contactor/relay combination, so that the composite busbar can be used as an expressway of a power distribution system. The composite busbar can be mounted at one time, and errors are not easy to occur. The composite busbar has compact structure, reduces the size of the whole machine and reduces the cost of the whole machine. The compact laminated structure of the composite busbar enables stray inductance to reach nh level. The composite busbar can increase the capacitance by changing the laminated material. The copper sheet in the composite busbar has good heat dissipation performance due to the sheet structure, can be completely coated, and greatly improves the service life and reliability.
5. According to the invention, through the design of the U-shaped copper bar, the A nut, the A washer, the B thread sleeve, the elastic plate, the limiting teeth, the shifting block, the strut, the screw and the B washer, when the U-shaped copper bar is fastened and electrically connected with a corresponding circuit through the bolt, the U-shaped copper bar can be swung out of one side of the bus bar plate, so that the bolt is more conveniently installed, the installation efficiency is greatly improved, and the U-shaped copper bar is convenient to disassemble during maintenance.
6. The design benefit of adopting the unilateral fastening bolt in the invention is that: firstly, compared with the traditional unilateral bolt installation technology, the unilateral fastening bolt has the advantages that the space required by one end without the nut is small; secondly, compared with the traditional installation mode of the bolt and the nut, the unilateral fastening bolt only needs to be installed on one side, and is convenient to fasten and install and also convenient to detach; thirdly, in relation to the bolt fastening structure, the one-side fastening bolt of the present invention utilizes the rotation bar located in the limit groove and the two swing plates in limit contact with the lower end of the electrical connection hole to fasten the connecting copper sheet on the mother board, and the fastening strength of such bolt is limited; but for the fastening of the connecting copper sheets on the mother board, the fastening required by the connecting copper sheets does not need to be large, so that the single-side fastening bolt provided by the invention has the advantages of meeting the strength of fastening and connecting copper sheets, being used in a narrow space area and having a wider application range.
Drawings
Fig. 1 is an installation schematic diagram of a composite busbar, an a plug and a B plug.
Fig. 2 is a schematic structural diagram of the plug A and the plug B.
Fig. 3 is a schematic diagram of a mother board structure.
FIG. 4 is a schematic illustration of an intermediate layer of a busbar board.
Fig. 5 is an enlarged schematic view of the installation of the U-shaped copper bar.
Fig. 6 is a schematic view 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 and the a washer.
Fig. 7 is a schematic view of the two end structures of the U-shaped copper bar and an installation schematic view of the U-shaped buckle.
Fig. 8 is a schematic diagram of the U-shaped upper limit tooth and the upper limit tooth of the elastic plate performing limit matching.
Fig. 9 is a schematic view and a schematic cross-sectional view of a C-thread bush and C-nut in tight fit.
Fig. 10 is a schematic structural view of a right hexagonal ring and a turnstrip and a top view of the right hexagonal ring and the turnstrip in cooperation.
FIG. 11 is a schematic view of the mating of the connecting copper sheet with the electrical connection hole and a structural view of the ring teeth.
Fig. 12 is a schematic sectional view of the internal structure of the C-thread bush and an enlarged view of the engagement of the gear with the ring teeth.
Fig. 13 is an electrical schematic diagram of the composite busbar.
Number designation in the figures: 1. a, inserting a plug; 2. a, positive pole; 3. a, a negative electrode; 4. b, plugging; 5. b, negative electrode; 6. b, positive pole; 7. a, copper bars; 8. b, copper bars; 9. a mother board; 10. a main contactor; 12. a, a relay; 13. a relay B; 14. a fuse; 15. a C fuse; 16. a fuse B; 17. a, a fuse protector; 18. a main fuse; 19. a U-shaped copper bar; 20. an intermediate layer; 21. a surface insulating layer; 22. a copper sheet; 23. b, copper sheet; 24. c, copper sheet; 25. d, copper sheet; 26. a main copper sheet; 27. a, straight section; 28. an L-shaped section; 29. b, straight section; 30. an h-shaped section; 31. an L-shaped copper sheet; 32. an A end; 33. a B terminal; 34. a C terminal; 35. a D end; 36. a main cut; 37. a copper branch sheet; 38. an E end; 40. a U-shaped buckle; 41. branch incision; 42. a fixed end; 43. a, a nut; 44. a gasket; 45. b, thread bushing; 46. a rotating end; 48. an elastic plate; 49. limiting teeth; 50. shifting blocks; 51. mounting holes; 52. a pillar; 53. a straight line is formed; 54. a screw; 55. b, a gasket; 56. strip turning; 57. a right hexagonal ring; 58. c, thread bushing; 59. c, a nut; 60. a guide post; 61. ring teeth; 62. a gear; 63. a swinging plate; 64. a slide bar; 66. a limiting groove; 67. a ring bevel; 68. connecting the copper sheets; 69. a branch end; 70. an electrical connection hole; 71. and (5) pre-charging the resistor.
Detailed Description
The invention will be described with reference to the accompanying drawings, which are only schematic in terms of their structural proportions and which may be specified according to actual requirements; it should be understood that the description is illustrative only and is not intended to limit the scope of the present disclosure. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure. All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art unless otherwise defined. It is noted that the terms used herein should be interpreted as having a meaning that is consistent with the context of this specification and should not be interpreted in an idealized or overly formal sense.
A composite bus bar for a vehicle-mounted controller is shown in figure 1 and comprises a bus bar board 9 with an input end and five output ends, an A relay 12, a D fuse 14, a C fuse 15, a B fuse 16, an A fuse 17, a main fuse 18, a main contactor 10, a pre-charging resistor 71 and a B relay 13, wherein the bus bar board 9 is composed of two surface insulation layers 21 and an intermediate layer 20, the intermediate layer 20 is positioned between the two surface insulation layers 21, and the intermediate layer 20 is composed of a conductor and an insulation layer; five output ends of the mother board 9 are an output end A, an output end B, an output end C, an output end D and an output end E in sequence.
As shown in fig. 13, the positive electrode of the input end of the mother board 9 is electrically connected with the positive electrode of the output end E through the main fuse 18 and the main contactor 10; the positive electrode of the input end of the mother row board 9 is electrically connected with the positive electrode of the output end E through the main fuse 18, the B relay 13 and the pre-charging resistor 71; the positive electrode of the input end of the mother board 9 is electrically connected with the positive electrode of the output end A through the main fuse 18, the A relay 12 and the A fuse 17; the anode of the input end of the mother board 9 is electrically connected with the anode of the output end of B through a main fuse 18, an A relay 12 and a B fuse 16; the anode of the input end of the mother board 9 is electrically connected with the anode of the output end of the C through the main fuse 18 and the C fuse 15; the positive electrode of the input end of the mother board 9 is electrically connected with the positive electrode of the D output end through the main fuse 18 and the D fuse 14.
The negative electrodes of the input ends of the mother row board 9 are respectively electrically connected with the negative electrodes of the five output ends.
The middle layer 20 of the mother board 9 is bonded with two surface insulating layers 21 by gluing.
As shown in fig. 1 and 2, the input end of the mother board 9 is electrically connected with the battery through an a plug 1; and the E output end of the mother board 9 is electrically connected with a motor controller through a B plug 4.
As shown in fig. 3 and 4, the two ends of the length direction of the mother row plate 9 are symmetrically and fixedly provided with an a copper bar 7 and a B copper bar 8; the length direction side of the mother row plate 9 is provided with a main notch 36, the A copper bar 7 and the B copper bar 8 are positioned on the same side of the mother row plate 9, and the main notch 36 is positioned between the A copper bar 7 and the B copper bar 8; the middle layer 20 of the bus bar board 9 close to the width end of the A copper bar 7 is sequentially provided with an A copper sheet 22, a B copper sheet 23, a C copper sheet 24 and a D copper sheet 25 at equal intervals along the width direction of the bus bar board 9; a main copper sheet 26 is mounted at the end, close to the width end of the B copper bar 8, of the intermediate layer 20 of the mother row board 9, the main copper sheet 26 is formed by sequentially connecting an A straight section 27, an L-shaped section 28, a B straight section 29 and an h-shaped section 30, the A straight section 27 is located on one side, provided with a main notch 36, of the intermediate layer 20, the B straight section 29 is located at the end, close to the width end of the B copper bar 8, of the intermediate layer 20, and the h-shaped section 30 provided with a C end 34 and a D end 35 is located on one side, far away from the main notch 36, of the intermediate layer 20; the middle part of the middle layer 20 is provided with an L-shaped copper sheet 31, and the L-shaped copper sheet 31 with an A end 32, a B end 33 and an E end 38 is positioned between the A straight section 27 and the h-shaped section 30; a branch copper sheet 37 positioned between the B straight section 29 and the h-shaped section 30 is arranged on the intermediate layer 20; the A end 32 and the B end 33 on the L-shaped copper sheet 31 correspond to the A copper sheet 22 and the B copper sheet 23 respectively in position one to one; the C end 34 and the D end 35 on the h-shaped section 30 correspond to the C copper sheet 24 and the D copper sheet 25 respectively in position one to one; the U-shaped copper bar 19 is fixedly arranged on the width end of the mother row plate 9 close to the A copper bar 7.
The positions of the intermediate layer 20 of the busbar, which are not provided with the A copper sheet 22, the B copper sheet 23, the C copper sheet 24, the D copper sheet 25, the L-shaped copper sheet 31, the main copper sheet 26 and the branch copper sheet 37, are all filled with insulating materials.
As shown in fig. 1 and 2, the positive electrode a 2 of the plug a 1 is electrically connected with the copper bar a 7, and the positive electrode B6 of the plug B4 is electrically connected with the copper bar B8; as shown in fig. 1, 3 and 4, 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 contactor 10 is electrically connected with the A straight section 27 of the main copper sheet 26, and the other end is electrically connected with the B copper bar 8; one end of the A relay 12 is electrically connected with the B straight section 29 of the main copper sheet 26, and the other end is electrically connected with the E end 38 of the L-shaped copper sheet 31; one end of the relay B13 is electrically connected with the straight section B29 of the main copper sheet 26, and the other end is electrically connected with the branch copper sheet 37; one end of the pre-charging resistor 71 is electrically connected with the branch copper bar 37, and the other end is electrically connected with the B copper bar 8; one end of the A fuse 17 is electrically connected with the A end 32 of the L-shaped copper sheet 31, and the other end is electrically connected with the A copper sheet 22; one end of the B fuse 16 is electrically connected with the B end 33 of the L-shaped copper sheet 31, and the other end is electrically connected with the B copper sheet 23; one end of the C fuse 15 is electrically connected with the C end 34 of the h-shaped section, and the other end of the C fuse is electrically connected with the C copper sheet 24; one end of the D fuse 14 is electrically connected with the D end 35 of the h-shaped section, and the other end is electrically connected with the D copper sheet 25.
The A negative electrode 3 of the A plug 1 is electrically connected with the B negative electrode 5 of the B plug 4 through a copper bar; as shown in fig. 4, the a copper sheet 22 is electrically connected to the positive electrode of the PTC element as the positive electrode of the output terminal; the copper sheet B23 is used as the anode of the output end and is electrically connected with the anode of the vehicle-mounted air conditioner; the C copper sheet 24 is used as the anode of the output end and is electrically connected with the anode of an AC power supply; the D copper sheet 25 is electrically connected to the positive electrode of the DC power supply as the positive electrode of the output terminal. The B copper bar 8 is used as the anode of the E output end.
The negative pole of the PTC, the negative pole of the vehicle-mounted air conditioner, the negative pole of the AC power supply and the negative pole of the DC power supply are electrically connected with the A negative pole 3 of the A plug 1 through the U-shaped copper bar 19 or directly connected with the A negative pole 3 of the A plug 1.
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 fig. 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 mother board 9 each have an electrical connection hole 70; the L-shaped copper sheets 31 of the mother row board 9 are respectively provided with an electric connection hole 70 at the A end 32, the B end 33 and the E end 38; the two ends of the copper sheets 37 of the mother row board 9 are respectively provided with an electric connection hole 70; the main copper sheet 26A of the mother row board 9 has an electrical connection hole 70 at each of two ends of the straight section 27, an electrical connection hole 70 at each of the C end 34 and the D end 35 of the h-shaped section 30, and an electrical connection hole 70 at each of the middle and end of the main copper sheet 26.
One end of the main fuse 18 is fixed and electrically connected with the electric connection hole 70 at the position of the copper bar A7 through a bolt, and the other end of the main fuse is fixed and electrically connected with the corresponding electric connection hole 70 at one end of the straight section 27 of the main copper sheet 26A through a bolt; one end of the main contactor 10 is fixed and electrically connected with the corresponding electric connection hole 70 of the straight section 27 of the main copper bar 26A through a bolt, and the other end of the main contactor is fixed and electrically connected with the electric connection hole 70 of the B copper bar 8 through a bolt; one end of the relay A12 is fixed and electrically connected with the corresponding electric connection hole 70 of the straight section 29 of the main copper sheet 26B through a bolt, and the other end of the relay A is fixed and electrically connected with the electric connection hole 70 of the E end 38 of the L-shaped copper sheet 31B through a bolt; one end of the relay B13 is fixed and electrically connected with the corresponding electric connection hole 70 of the straight section 29 of the main copper sheet 26B through a bolt, and the other end of the relay B is fixed and electrically connected with the corresponding electric connection hole 70 of the supporting copper sheet 37 through a bolt; one end of the pre-charging resistor 71 is fixed and electrically connected with the corresponding electrical connection hole 70 of the copper branch sheet 37 through a bolt, and the other end is electrically connected with the B copper bar 8; one end of the A fuse 17 is fixed and electrically connected with the electric connection hole 70 of the A end 32 of the L-shaped copper sheet 31 through a bolt, and the other end of the A fuse 17 is fixed and electrically connected with the electric connection hole 70 of the A copper sheet 22 through a bolt; one end of the B fuse 16 is fixed and electrically connected with the electric connection hole 70 of the B end 33 of the L-shaped copper sheet 31 through a bolt, and the other end of the B fuse 16 is fixed and electrically connected with the electric connection hole 70 of the B copper sheet 23 through a bolt; one end of the C fuse 15 is fixed and electrically connected with the electric connection hole 70 of the h-shaped section C end 34 through a bolt, and the other end of the C fuse is fixed and electrically connected with the electric connection hole 70 of the C copper sheet 24 through a bolt; one end of the D fuse 14 is fixed and electrically connected with the electric connection hole 70 of the end 35 of the h-shaped section by a bolt, and the other end is fixed and electrically connected with the electric connection hole 70 of the D copper sheet 25 by a bolt.
The copper bar between the cathode A3 and the cathode B5 is respectively and electrically connected with the cathode A3 and the cathode B5 in a bolt fixed connection mode.
As shown in fig. 3 and 4, the U-shaped copper bar 19 has branch ends 69 at two ends, and the U-shaped copper bar 19 is embedded in the middle layer 20 of the mother board 9 through the branch ends 69 at the two ends.
As shown in fig. 3 and 7, a mounting hole 51 is opened at one corner of the width end of the mother row plate 9 where the U-shaped copper bar 19 is mounted, and a branch notch 41 is opened at the other corner; a U-shaped buckle 40 with a limiting tooth 49 is fixedly arranged on the inner wall of the branch notch 41 far away from the mounting hole 51; one end of the U-shaped copper bar 19 is provided with a rotating end 46, and the other end is fixedly connected with an elastic plate 48 through a fixed end 42; the side surface of the elastic plate 48 is provided with a limit tooth 49, and the elastic plate 48 is provided with a shifting block 50; as shown in fig. 8, the limit teeth 49 of the elastic plate 48 are in limit fit with the limit teeth 49 of the U-shaped buckle 40; as shown in fig. 5 and 6, the B-thread bush 45 for fastening the mother row plate 9 and the U-shaped copper bar 19 is located right below the mounting hole 51 of the mother row plate 9, and the top end of the B-thread bush 45 is provided with a B-washer 55; the middle part of the screw 54 is provided with an A washer 44, the upper surface of the A washer 44 is fixedly provided with two struts 52, the acute angle formed by connecting lines from the two struts 52 to the central axis of the screw 54 is 20-30 degrees, the connecting line between the two struts 52 is vertical to the width end of the bus board 9, the connecting line between the two struts 52 is positioned between the central axis of the screw 54 and the length side of the bus board 9 far away from the branch notch 41, the top end of the screw 54 is a dome, and the dome is provided with a letter mouth 53; a round hole on the rotating end 46 of the U-shaped copper bar 19 penetrates 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 in threaded fit with the external thread of the screw 54, and the a nut 43 is in press fit with the two pillars 52; the external thread of the screw 54 is threadedly engaged with the internal thread of the B-thread bush 45.
The above-described D fuse 14, C fuse 15, B fuse 16, and a fuse 17 are mounted on the mother board 9 using single-sided fastening bolts, and are electrically connected with the corresponding circuits.
As shown in fig. 9, 10, 11 and 12, the single-side fastening bolt comprises a regular hexagonal ring 57, a C-shaped threaded sleeve 58, a C-shaped nut 59, a guide post 60, a gear 62, a swinging plate 63, a sliding rod 64 and a rotating bar 56, as shown in fig. 9 and 11, wherein the C-shaped threaded sleeve 58 passes through a round hole of a connecting copper sheet 68 and enters an electric connection hole 70 of the mother board 9; as shown in fig. 10 and 12, the C-shaped threaded sleeve 58 has a right hexagonal ring 57 at the upper end and a ring inclined surface 67 at the lower end; two limiting grooves 66 are symmetrically formed in the two inner walls of the right hexagonal ring 57, which are opposite to each other; two gears 62 are symmetrically arranged in the inner sleeve of the C thread sleeve 58 close to the lower end of the C thread sleeve through an axis, and a swinging plate 63 is fixedly arranged on each gear 62; a guide post 60 is fixedly arranged at the middle part in the C thread sleeve 58; the top end of the sliding rod 64 is symmetrically provided with two rotating bars 56, the lower end of the sliding rod passes through the guide post 60 and is positioned between two gears 62, as shown in fig. 9 and 11, a section of annular teeth 61 is distributed at the lower end of the sliding rod 64, and the section of annular teeth 61 is meshed with the two gears 62; the internal thread of the C-nut 59 is in threaded fit with the external thread of the C-threaded sleeve 58; as shown in fig. 10, the distance between two sharp corners symmetrical to the outer circumferential surface of the regular hexagonal ring 57 is equal to the diameter of the outer circumferential surface of the C-shaped threaded sleeve 58; the distance from one end of the rotating strip 56, which is far away from the sliding rod 64, to the central axis of the sliding rod 64 is smaller than the distance from the inner angle end of the regular hexagonal ring 57 to the central axis of the regular hexagonal ring 57; the distance from one end of the rotating strip 56 far away from the sliding rod 64 to the central axis of the sliding rod 64 is larger than the shortest distance from the inner wall of the regular hexagonal 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 limiting groove 66 when rotating, so as to limit the axial up-and-down movement of the sliding rod 64.
The plug A1 and the plug B4 adopt the prior art, preferably adopt a Thailand HV800 connector socket; the main contactor 10, the relay and the fuse are purchased according to actual requirements; the low voltage output signals of the main contactor 10 and the relay in the present invention are controlled by the BMS.
In the invention, the acute angle formed by connecting lines from the two support columns 52 to the central axis of the screw 54 is required to be 20-30 degrees, the connecting line between the two support columns 52 is vertical to the width end of the busbar plate 9, and the connecting line between the two support columns 52 is positioned between the central axis of the screw 54 and the length side of the busbar plate 9 far away from the branch notch 41; the design is convenient for the rotating end 46 of the U-shaped copper bar 19 to swing around the screw rod 54 in a large range, and the fixed end 42 of the U-shaped copper bar 19 can be ensured to completely rotate out of the bus bar plate 9, so that the design purpose of the invention is met.
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 sheets 37 in the invention defines a layout scheme according to an electrical schematic diagram and the interface positions of branch electrical devices.
When the composite busbar is actually used, high-voltage current of a vehicle-mounted battery is input to the composite busbar through the A plug 1; when the current on the composite busbar is constant, the constant current flows out from the output end on the composite busbar through the main fuse 18, the A fuse 17, the B fuse 16, the C fuse 15 and the D fuse 14; when the voltage is unstable, particularly when the voltage is too high, the current on the composite busbar is too high, and then the melt in the main fuse 18 or the a fuse 17 or the B fuse 16 or the C fuse 15 or the D fuse 14 melts, and then the circuit where the corresponding melt-melted fuse is located is opened, so that the corresponding vehicle-mounted electrical component is subjected to overload protection. When the main contactor 10 on the mother board 9 meets an excessive power load, the main contactor 10 is used for switching on and switching off a circuit, and the load protection function is achieved. In addition, the main contactor 10 can support the mother board 9, increase the contact area between the mother board 9 and the air, and improve the heat dissipation performance of the mother board 9 in a high-voltage environment.
The invention realizes the implementation process by the design of the U-shaped copper bar 19, the A nut 43, the A washer 44, the B thread bush 45, the elastic plate 48, the limit tooth 49, the shifting block 50, the pillar 52, the screw 54 and the B washer 55: the B threaded sleeve 45 is positioned right below the mounting hole 51 of the mother board 9, and a B washer 55 on the B threaded sleeve 45 plays a larger-range supporting role on the mother board 9; after the lower end of the screw rod 54 passes through the mounting hole 51, a straight screwdriver is inserted into the straight opening 53 to screw the lower end of the screw rod 54 into the B thread sleeve 45, and the external thread of the screw rod 54 is in thread fit with the internal thread of the B thread sleeve 45; when the gasket A44 tightly clings to the mother board 9, the screw 54 stops rotating, and the gasket B55 and the gasket A44 clamp the mother board 9; then, the rotating end 46 of the U-shaped copper bar 19 passes through the upper end of the screw 54 and is positioned above the a washer 44, and the rotating end 46 is rounded so that when the rotating end 46 rotates around the screw 54, the rounded corner of the rotating end 46 does not interfere with the movement of the pillar 52; then, the nut 43 a is screwed into the upper end of the screw rod 54 by using a hardware tool until the nut 43 a is pressed against the top end of the pillar 52, at this time, the rotating end 46 of the U-shaped copper bar 19 is just located between the washer 44 a and the nut 43 a, and the thickness of the rotating end 46 of the U-shaped copper bar 19 is substantially the distance between the washer 44 a and the nut 43 a, so that the rotating end 46 of the copper bar can rotate between the washer 44 a and the nut 43 a. In an initial state, the fixed end 42 of the U-shaped copper bar 19 is positioned in the main notch 36, and the upper limit tooth 49 of the elastic plate 48 is meshed with the upper limit tooth 49 of the U-shaped buckle 40, so that the fixed end 42 of the U-shaped copper bar 19 cannot be separated from the main notch 36 under the condition of no external force; when the corresponding circuit and the U-shaped copper bar 19 are required to be conveniently fastened and electrically connected through the bolt, the shifting block 50 is manually shifted to move towards the direction far away from the U-shaped buckle 40, the elastic plate 48 deforms towards the direction far away from the U-shaped buckle 40, and then the limiting teeth 49 on the elastic plate 48 are disengaged from the limiting teeth 49 on the U-shaped buckle 40; next, the U-shaped copper bar 19 is manually swung out of the main notch 36, so that the space below the mounting bolt of the U-shaped copper bar 19 is not limited by the mother board 9, and the bolt is very convenient to mount. After the corresponding circuit and the U-shaped copper bar 19 are fastened and electrically connected through the bolt, manually swinging the U-shaped copper bar 19 to enable the fixed end 42 of the U-shaped copper bar 19 to enter the main notch 36 again, enabling the elastic plate 48 to enter the main notch 36 along with the fixed end 42 of the U-shaped copper bar 19, and enabling the limiting teeth 49 of the elastic plate 48 and the limiting teeth 49 of the U-shaped buckle 40 to be extruded in the process, wherein under the mutual extrusion action of the limiting teeth 49, the elastic plate 48 can be deformed in a self-adaptive mode to swing in a small amplitude; and when the limiting teeth 49 of the elastic plate 48 are completely meshed with the limiting teeth 49 of the U-shaped buckle 40, stopping 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, the C fuse 15, the B fuse 16, or the a fuse 17.
The invention relates to an implementation process of a unilateral fastening bolt, which comprises the following steps: when the switch is not installed in the corresponding electric connection hole 70 in the initial state, the two swing plates 63 are parallel, the rotating strip 56 is positioned above the limiting groove 66, and the rotating strip 56 and the right hexagonal ring 57 are opposite to each other and are collinear with the connecting line of the two sharp corners. When the space below the mother board 9 is small, the C-shaped threaded sleeve 58 penetrates through the round hole of the connecting copper sheet 68 and is inserted into the corresponding electric connection hole 70; the sliding rod 64 is pressed downwards, the ring teeth 61 on the sliding rod 64 drive the two gears 62 to rotate, and the two gears 62 drive the two swinging plates 63 to swing in the direction away from each other; when the two swing plates 63 swing to be attached to the ring inclined surfaces 67, the two swing plates 63 cannot swing continuously, and the position of the rotating bar 56 is just positioned in the same plane with the limiting groove 66 due to the downward movement of the sliding rod 64; next, the rotating bar 56 is rotated into the corresponding limiting groove 66, the rotation of the rotating bar 56 rotates the ring gear 61 on the sliding rod 64, and the ring gear 61 does not rotate and drive the gear 62 to rotate; since the rotating bar 56 is restricted from moving up and down by the sliding rod 64 after entering the corresponding limiting groove 66, the rotation of the gear 62 is restricted, and the swing of the swing plate 63 is also restricted. And pulling the C-shaped threaded sleeve 58 to move upwards until the two swing plates 63 are in contact with the lower end of the electric connection hole 70, maintaining the position of the C-shaped threaded sleeve 58 at the moment, threading a C-shaped nut 59 through the regular hexagonal ring 57 and then screwing the C-shaped nut 59 onto the C-shaped threaded sleeve 58, and carrying out threaded matching on the internal thread of the C-shaped nut 59 and the external thread of the C-shaped threaded sleeve 58 until the C-shaped nut 59 is fastened with the connecting copper sheet 68. During the process of screwing the regular hexagonal ring 57 into the C-shaped threaded sleeve 58, the regular hexagonal ring 57 needs to be fastened by a tool so that the regular hexagonal ring 57 can be screwed into the C-shaped threaded sleeve 58. When the opposite side fastening bolt needs to be quickly disassembled, the rotating strip 56 only needs to be unscrewed from the corresponding limiting groove 66, then the sliding rod 64 is pulled upwards to enable the ring gear 61 to drive the gear 62 to rotate reversely, so that the two swing plates 63 reset and swing, the two swing plates 63 do not limit the lower end of the electric connection hole 70, the C nut 59 can be directly pulled to quickly disassemble the whole single side fastening bolt from the electric connection hole 70, or the C nut 59 rotates reversely first to loosen the bolt, and then the rotating strip is unscrewed.
When the space below the mother board 9 is smaller, the two swing boards 63 do not need to be completely extended out of the electric connection holes 70 of the mother board 9, the sliding rod 64 can be pressed down when the upper parts of the two swing boards 63 are positioned in the electric connection holes 70 of the mother board 9, so that the two swing boards 63 can swing in the direction away from each other in the process that the two swing boards 63 are gradually extended out of the electric connection holes 70 of the mother board 9 until the two swing boards 63 are contacted with the lower ends of the electric connection holes 70, and thus, the single-side fastening bolt of the invention can be used in a narrower space, and the application range is wider.
In the invention, the two swing plates 63 are limited by utilizing the lower ends of the two swing plates 63 and the electric connection hole 70, the two swing plates 63 are further limited by utilizing the rotation bar 56 to be screwed into the limit groove 66, after the C nut 59 is used for fastening the connecting copper sheet 68 on the mother board 9, a large pressure is generated between the rotation bar 56 and the limit groove 66, and the rotation bar 56 is not easy to swing out of the limit groove 66 under the condition that the rotation bar 56 is not subjected to manual operation, thereby ensuring the fastening effect of the one-side fastening bolt. According to the invention, the ring inclined surface 67 is adopted at the lower end of the C thread sleeve 58, so that the swinging angle of the two swinging plates 63 in the direction away from each other is limited, and therefore, when the two swinging plates 63 swing to be in limit contact with the lower end of the electric connection hole 70, a certain included angle is reserved between the two swinging plates 63 and the lower plate surface of the busbar plate 9, and therefore, the situation that the electric lines arranged below the busbar plate 9 are squeezed by the two swinging plates 63 can be avoided, or the spatial arrangement of the electric lines below the busbar plate 9 is not influenced.
While the present invention has been described in conjunction with the above embodiments, the present invention is not limited to the above embodiments but is limited only by the appended claims, and those skilled in the art can easily make modifications and variations thereto without departing from the true spirit and scope of the present invention.

Claims (1)

1. The utility model provides a female row of compound for on-vehicle controller which characterized in that: the pre-charging circuit comprises a bus bar board with an input end and five output ends, an A relay, a D fuse, a C fuse, a B fuse, an A fuse, a main contactor, a pre-charging resistor and a B relay, wherein the bus bar board consists of two surface insulating layers and an intermediate layer, the intermediate layer is positioned between the two surface insulating layers, and the intermediate layer consists of a conductor and an insulating layer; the five output ends of the mother board are an output end A, an output end B, an output end C, an output end D and an output end E in sequence;
the anode of the input end of the mother row board is electrically connected with the anode of the output end E through the main fuse and the main contactor; the positive electrode of the input end of the mother row board is electrically connected with the positive electrode of the output end E through the main fuse, the relay B and the pre-charging resistor; the anode of the input end of the mother board is electrically connected with the anode of the output end A through the main fuse, the relay A and the fuse A; the anode of the input end of the mother row board is electrically connected with the anode of the output end of the B through the main fuse, the A relay and the B fuse; the anode of the input end of the mother row board is electrically connected with the anode of the output end of the C through the main fuse and the C fuse; the anode of the input end of the mother board is electrically connected with the anode of the output end of the D through the main fuse and the D fuse;
the negative electrodes of the input ends of the mother row plates are respectively electrically connected with the negative electrodes of the five output ends;
the input end of the mother board is electrically connected with the battery through an A plug; the E output end of the mother board is electrically connected with a motor controller through a B plug;
a copper bar and B copper bar are symmetrically and fixedly arranged at two ends of the length direction side of the mother row plate; the main notch, the A copper bar and the B copper bar are positioned on the same side of the mother row plate, and the main notch is positioned between the A copper bar and the B copper bar; the copper sheets A, the copper sheets B, the copper sheets C and the copper sheets D are sequentially arranged at the position, close to the width end of the copper bar A, of the intermediate layer of the busbar board at equal intervals along the width direction of the busbar board; the main copper sheet is arranged at the position, close to the width end of the B copper bar, of the middle layer of the bus bar board and is formed by sequentially connecting an A straight section, an L-shaped section, a B straight section and an h-shaped section, wherein the A straight section is located on one side, provided with a main notch, of the middle layer, the B straight section is located at the position, close to the width end of the B copper bar, of the middle layer, and the h-shaped section provided with a C end and a D end is located on one side, far away from the main notch, of the middle layer; the middle part of the middle layer is provided with an L-shaped copper sheet, and the L-shaped copper sheet with an A end, a B end and an E end is positioned between the A straight section and the h-shaped section; the copper supporting sheet positioned between the straight section B and the h-shaped section is arranged on the middle layer; the end A and the end B on the L-shaped copper sheet respectively correspond to the positions of the copper sheet A and the copper sheet B one by one; the C end and the D end on the h-shaped section respectively correspond to the C copper sheet and the D copper sheet in position one to one; the U-shaped copper bar is fixedly arranged on the end of the mother row plate close to the width of the A copper bar;
the positions of the intermediate layer of the bus bar, where the A copper sheet, the B copper sheet, the C copper sheet, the D copper sheet, the L-shaped copper sheet, the main copper sheet and the branch copper sheet are not installed, are all filled with insulating materials;
the positive electrode A of the plug A is electrically connected with the copper bar A, and the positive electrode B of the plug B is electrically connected with the copper bar B; one end of the main fuse is electrically connected with the A copper bar, and the other end of the main fuse is electrically connected with one end of the A straight section of the main copper sheet; one end of the main contactor is electrically connected with the A straight section of the main copper sheet, and the other end of the main contactor is electrically connected with the B copper bar; one end of the relay A is electrically connected with the straight section B of the main copper sheet, and the other end of the relay A is electrically connected with the end E of the L-shaped copper sheet; one end of the relay B is electrically connected with the straight section B of the main copper sheet, and the other end of the relay B is electrically connected with the branch copper sheet; one end of the pre-charging resistor is electrically connected with the branch copper sheet, and the other end of the pre-charging resistor is electrically connected with the B copper bar; one end of the fuse A is electrically connected with the end A of the L-shaped copper sheet, and the other end of the fuse A is electrically connected with the copper sheet A; one end of the fuse B is electrically connected with the end B of the L-shaped copper sheet, and the other end of the fuse B is electrically connected with the copper sheet B; one end of the C-shaped fuse is electrically connected with the C end of the h-shaped section, and the other end of the C-shaped fuse is electrically connected with the C copper sheet; one end of the D-shaped fuse is electrically connected with the D end of the h-shaped section, and the other end of the D-shaped fuse is electrically connected with the D copper sheet;
the negative electrode A of the plug A is electrically connected with the negative electrode B of the plug B through a copper bar; the copper sheet A is used as the anode of the output end and is electrically connected with the anode of the PTC; the copper sheet B is used as the anode of the output end and is electrically connected with the anode of the vehicle-mounted air conditioner; the C copper sheet is used as the anode of the output end and is electrically connected with the anode of the AC power supply; the D copper sheet is used as the anode of the output end and is electrically connected with the anode of the DC power supply;
the negative electrode of the PTC, the negative electrode of the vehicle-mounted air conditioner, the negative electrode of the AC power supply and the negative electrode of the DC power supply are electrically connected with the negative electrode A of the plug A through U-shaped copper bars or directly connected with the negative electrode A of the plug A;
the copper sheet A is the anode of the output end A, the copper sheet B is the anode of the output end B, the copper sheet C is the anode of the output end C, and the copper sheet D is the anode of the output end D;
a mounting hole is formed at one corner of the width end of the mother row plate, which is provided with the U-shaped copper bar, and a branch notch is formed at the other corner; the U-shaped buckle with the limiting teeth is fixedly arranged on the inner wall of the branch notch far away from the mounting hole; one end of the U-shaped copper bar is provided with a rotating end, and the other end of the U-shaped copper bar is fixedly connected with an elastic plate through a fixed end; the side surface of the elastic plate is provided with a limiting tooth, and the elastic plate is provided with a shifting block; the limiting teeth of the elastic plate are in limiting fit with the limiting teeth of the U-shaped buckle; the B thread bush for fastening the mother row plate and the U-shaped copper bar is positioned right below the mounting hole of the mother row plate, and the top end of the B thread bush is provided with a B gasket; the middle part of the screw is provided with an A washer, the upper surface of the A washer is fixedly provided with two struts, the acute angle formed by connecting lines from the two struts to the central axis of the screw is 20-30 degrees, the connecting line between the two struts is vertical to the width end of the mother row plate, the connecting line between the two struts is positioned between the central axis of the screw and the length side of the mother row plate far away from the branch notch, the top end of the screw is a dome, and the dome is provided with a straight opening; a round hole at the rotating end of the U-shaped copper bar penetrates through the upper end of the screw and is matched with the A washer; the internal thread of the nut A is in threaded fit with the external thread of the screw, and the nut A is in extrusion fit with the two support columns; the external thread of the screw is in threaded fit with the internal thread of the B thread sleeve;
the middle layer of the mother board is bonded with the two surface insulation layers through gluing;
the copper sheets A, B, C and D of the mother row board are respectively provided with an electric connection hole; the A end, the B end and the E end of the L-shaped copper sheet of the mother row board are respectively provided with an electric connection hole; two ends of each copper supporting sheet of the mother row board are respectively provided with an electric connection hole; two ends of a straight section A of the main copper sheet of the mother row board are respectively provided with an electric connection hole, the C end and the D end of the h-shaped section are respectively provided with an electric connection hole, and the middle part and the end part of the main copper sheet are respectively provided with an electric connection hole;
one end of the main fuse is fixed and electrically connected with the electric connection hole at the copper bar A through a bolt, and the other end of the main fuse is fixed and electrically connected with the corresponding electric connection hole at one end of the straight section A of the main copper sheet through a bolt; one end of the main contactor is fixed and electrically connected with the corresponding electric connection hole of the straight section of the main copper sheet A through a bolt, and the other end of the main contactor is fixed and electrically connected with the electric connection hole of the copper bar B through a bolt; one end of the relay A is fixed and electrically connected with a corresponding electric connection hole of the straight section of the main copper sheet B through a bolt, and the other end of the relay A is fixed and electrically connected with an electric connection hole of the end E of the L-shaped copper sheet through a bolt; one end of the relay B is fixed and electrically connected with the corresponding electric connection hole of the straight section of the main copper sheet B through a bolt, and the other end of the relay B is fixed and electrically connected with the corresponding electric connection hole of the branch copper sheet through a bolt; one end of the pre-charging resistor is fixed and electrically connected with the corresponding electric connection hole of the branch copper sheet through a bolt, and the other end of the pre-charging resistor is electrically connected with the B copper bar; one end of the fuse A is fixed and electrically connected with the electric connection hole at the end A of the L-shaped copper sheet through a bolt, and the other end of the fuse A is fixed and electrically connected with the electric connection hole of the copper sheet A through a bolt; one end of the fuse B is fixed and electrically connected with an electric connection hole at the end B of the L-shaped copper sheet through a bolt, and the other end of the fuse B is fixed and electrically connected with an electric connection hole of the copper sheet B through a bolt; one end of the C-shaped fuse is fixed and electrically connected with the electric connection hole at the end C of the h-shaped section through a bolt, and the other end of the C-shaped fuse is fixed and electrically connected with the electric connection hole of the C copper sheet through a bolt; one end of the D-shaped fuse is fixed and electrically connected with the electric connection hole at the D end of the h-shaped section through a bolt, and the other end of the D-shaped fuse is fixed and electrically connected with the electric connection hole of the D copper sheet through a bolt;
the copper bar between the negative electrode A and the negative electrode B is respectively and electrically connected with the negative electrode A and the negative electrode B in a bolt fixed connection mode;
the U-shaped copper bar is embedded in the middle layer of the mother row plate through the branch ends at the two ends;
the D fuse, the C fuse, the B fuse and the A fuse are mounted on the busbar board by adopting unilateral fastening bolts and are electrically connected with corresponding circuits;
the single-side fastening bolt comprises a regular hexagonal ring, a C thread sleeve, a C nut, a guide pillar, a gear, a swinging plate, a sliding rod and a rotating strip, wherein the C thread sleeve penetrates through a round hole for connecting the copper sheets and enters an electric connection hole of the mother row plate; the upper end of the C thread sleeve is provided with a regular hexagonal ring, and the lower end of the C thread sleeve is provided with a ring inclined plane; two limiting grooves are symmetrically formed in the two inner walls of the right hexagonal ring, which are opposite to each other; two gears are symmetrically arranged in the inner sleeve of the C thread sleeve close to the lower end of the C thread sleeve through an axis, and a swinging plate is fixedly arranged on each gear; a guide pillar is fixedly arranged in the middle of the C thread bush; the top end of the sliding rod is symmetrically provided with two rotating strips, the lower end of the sliding rod penetrates through the guide pillar and is positioned between the two gears, and a section of annular teeth are distributed at the lower end of the sliding rod and are meshed with the two gears; the internal thread of the C nut is in threaded fit with the external thread of the C thread sleeve; the distance between two symmetrical sharp angles of the outer ring surface of the regular hexagonal ring is equal to the diameter of the outer sleeve surface of the C thread sleeve; the distance from one end of the rotating strip, which is far away from the sliding rod, to the central axis of the sliding rod is smaller than the distance from the inner angle end of the regular hexagonal ring to the axis of the regular hexagonal ring; the distance from one end of the rotating strip, which is far 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 axis of the regular hexagonal ring.
CN202110080649.9A 2019-09-26 2019-09-26 Composite busbar for vehicle-mounted controller Active CN112713465B (en)

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CN114204305B (en) * 2021-11-19 2024-04-30 江苏华威铜业有限公司 Abnormal shape copper bar with multislot structure

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CN112713465A (en) 2021-04-27

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