CN107979142B - DC-DC power supply circuit for new energy electric bus air conditioner - Google Patents
DC-DC power supply circuit for new energy electric bus air conditioner Download PDFInfo
- Publication number
- CN107979142B CN107979142B CN201711449839.3A CN201711449839A CN107979142B CN 107979142 B CN107979142 B CN 107979142B CN 201711449839 A CN201711449839 A CN 201711449839A CN 107979142 B CN107979142 B CN 107979142B
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- spring
- rod
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- circuit
- conducting ring
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- 238000001704 evaporation Methods 0.000 claims abstract description 27
- 238000009833 condensation Methods 0.000 claims abstract description 24
- 230000005494 condensation Effects 0.000 claims abstract description 24
- 230000008020 evaporation Effects 0.000 claims abstract description 24
- 238000001514 detection method Methods 0.000 claims abstract description 21
- 238000004378 air conditioning Methods 0.000 claims abstract description 17
- 238000012544 monitoring process Methods 0.000 claims abstract description 7
- 238000003780 insertion Methods 0.000 claims description 44
- 230000037431 insertion Effects 0.000 claims description 44
- 238000001125 extrusion Methods 0.000 claims description 16
- 210000000078 claw Anatomy 0.000 claims description 13
- 238000009434 installation Methods 0.000 description 21
- 239000004020 conductor Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
Abstract
The invention provides a DC-DC power supply circuit for an air conditioner of a new energy electric bus, which comprises the following components: the monitoring circuit comprises a current overload detection module and a controller, wherein the current overload detection module is connected in series with the power supply circuit of the air conditioning battery of the new energy electric motor coach so as to detect the current in the power supply circuit of the air conditioning battery of the new energy electric motor coach, and the output end of the current overload detection module is connected to the controller; a switching circuit; the positive pole of new forms of energy [ electric ] motor coach air conditioner battery is connected to the positive pole input of transformer, and the negative pole input of transformer is connected to switch circuit's positive pole end, and switch circuit's negative pole ground connection is connected to the controller, and the positive pole output of transformer is connected to the positive pole of evaporation fan and condensation fan. The DC-DC power supply circuit for the new energy electric bus air conditioner solves the problem that the battery voltage provided by the new energy electric bus air conditioner in the prior art cannot directly provide voltage for the operation of the evaporating fan and the condensing fan.
Description
Technical Field
The invention relates to a controller of a new energy electric bus air conditioner, in particular to a DC-DC power supply circuit for the new energy electric bus air conditioner.
Background
In the working process, the phenomena of overheating, overcurrent and the like can occur when the circuits connected with the devices work in the working process, so that the phenomenon of overlarge heating value occurs in the whole controller, and the phenomenon of burning out the circuits occurs in the overheated environment of the circuits, so that the evaporation fan and the condensation fan are required to rapidly dissipate the heat of the circuits, and the purpose of protecting the controller is achieved. The operation of the evaporating fan, the condensing fan and the like needs to be operated under the direct-current voltage of 10-30 v, and the battery voltage provided by the air conditioner of the new energy electric bus is DC 200-DC 820v, so that the voltage can not be provided for the operation of the evaporating fan and the condensing fan.
Disclosure of Invention
The invention provides a DC-DC power supply circuit for a new energy electric bus air conditioner, which solves the problem that the battery voltage provided by the new energy electric bus air conditioner in the prior art cannot directly provide voltage for the operation of an evaporation fan and a condensation fan.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a DC-DC power supply circuit for an air conditioner of a new energy electric bus, comprising:
the monitoring circuit comprises a current overload detection module and a controller, wherein the current overload detection module is connected in series with the power supply circuit of the air conditioning battery of the new energy electric motor coach so as to detect the current in the power supply circuit of the air conditioning battery of the new energy electric motor coach, and the output end of the current overload detection module is connected to the controller;
a switching circuit;
the positive pole of new forms of energy [ electric ] motor coach air conditioner battery is connected to the positive pole input of transformer, and the negative pole input of transformer is connected to switch circuit's positive pole end, and switch circuit's negative pole ground connection is connected to the controller, and the positive pole output of transformer is connected to the positive pole of evaporation fan and condensation fan, and the negative pole output of transformer is connected to the negative pole of evaporation fan and condensation fan.
Preferably, the monitoring circuit, the switching circuit and the transformer are all arranged on a circuit board, the circuit board is provided with a mounting seat for mounting a controller, the controller comprises a control body and a plurality of pins for connecting a barrel circuit, and all the pins are arranged on two opposite edges of the control body in two rows;
the mount pad includes: the device comprises a body, an electric connection assembly, a first driving assembly and a second driving assembly, wherein a plurality of insertion holes are formed in the surface of the body, each insertion hole is used for inserting a pin, and the electric connection assembly, the first driving assembly and the second driving assembly are arranged on the body;
each insertion hole is provided with an electric connection assembly, and each electric connection assembly comprises: the device comprises a roller, a first mounting block, a pull claw, a movable rod, a second mounting block, a conducting ring, a first spring and a fourth spring, wherein a mounting cavity is formed in a body, a mounting cavity is formed beside each insertion hole, one end of the conducting ring stretches into the mounting cavity, the other end of the conducting ring penetrates through a guide hole formed in the body, the guide holes are communicated with each other, one end of the conducting ring in the mounting cavity is sleeved on the movable rod, the center lines of the movable rod and the conducting ring are parallel to the pin insertion direction, the end part of the movable rod, away from the guide ring, is provided with the rotatable roller, the outer wall of the movable rod is provided with the first mounting block positioned beside the roller, the movable rod penetrates through the first spring, one end of the first spring is fixed with the conducting ring, the other end of the first spring is fixed with the first mounting block, the end part of the conducting ring positioned in the mounting cavity is provided with the second mounting block, the first mounting block is mounted to one end of the pull claw, the other end of the pull claw extends towards the direction of the second mounting block and can hook the second mounting block from the side away from one side, the conducting ring and is not separated from the guide hole, and the conducting ring is not connected with the first spring and the fourth spring is used for fixing the inner wall of the first spring, and the first spring is fixed;
each insertion hole is provided with a first driving assembly, and each first driving assembly comprises: the coil spring type coil spring comprises an extrusion plate, a second spring, a moving rod, a driving block, a first driving rod, a second driving rod, a rotary drum, a coil spring, a central column and an eccentric wheel, wherein a containing cavity is formed beside each pair of an insertion hole and a mounting cavity, the extrusion plate is arranged in the insertion hole, the plane of the extrusion plate is perpendicular to the direction of inserting a pin into the insertion hole, the moving rod extending in the direction deviating from the pin is fixed on the extrusion plate, one end of the moving rod far away from the extrusion plate extends into the containing cavity and is fixed on a driving block, the direction of inserting the moving rod into the insertion hole is parallel to the direction of inserting the pin, the driving block is connected to one end of the first driving rod, the other end of the first driving rod extends into the mounting cavity, the first driving rod is parallel to the moving rod, the first driving rod is hinged to one end of the second driving rod positioned in the mounting cavity, the other end of the second driving rod is hinged to one end of the rotary drum, the rotary drum penetrates and is fixed with the eccentric wheel, the central line of the eccentric wheel is not in a straight line, the central line of the eccentric wheel is fixed on the inner wall of the mounting cavity, the central line of the rotary drum and the central line of the eccentric wheel is fixed on the inner wall of the rotary drum and the inner wall of the rotary drum is in a straight line, the inner wall of the cylindrical drum is fixed between the central column and the cylindrical coil spring and the coil spring rotating drum rotating in a tangent way;
the second drive assembly includes: the device comprises a plurality of clamping columns, a plurality of third mounting blocks, a plurality of fourth mounting blocks, a plurality of third springs, a pull block and a pull rod, wherein each mounting cavity is internally penetrated by a clamping column, the clamping columns are parallel to a movable rod, the clamping columns penetrate through the third springs, each clamping column is fixedly provided with the third mounting blocks, each conducting ring is provided with the fourth mounting blocks, the fourth mounting blocks are positioned at one side of the third mounting blocks, which is far away from an insertion hole, one end of each third spring is fixed with the third mounting blocks, the other end of each third spring is fixed with the inner wall of the mounting cavity, each clamping column corresponding to a row of pins is fixed on one pull block positioned outside the body, and the surface, which is far away from the body, of each pull block is fixedly provided with the pull rod parallel to the clamping column;
when no external force pulls the auxiliary pull rod, the first spring is always in a compressed state, and the second mounting block is tightly attached to the pull claw; when external force pulls the auxiliary pull rod, a distance is kept between the second mounting block and the pull claw; when no external force pulls the auxiliary pull rod and the pin is inserted into the insertion hole, the roller is tangent to the wide edge of the eccentric wheel, and the fourth spring is compressed to keep the conducting ring tightly attached to the pin; when no external force is used for pulling the auxiliary pull rod and the pins are not inserted into the insertion holes, the idler wheels are tangent to the narrow edges of the eccentric wheels, and the conductive rings can be kept from extending into the insertion holes under the elastic force of the fourth springs.
Compared with the prior art, the invention has the following beneficial effects:
the current overload detection module monitors the current of a power supply circuit of the electric bus air-conditioning battery in real time, the electric bus air-conditioning battery simultaneously needs to supply power to a four-way valve, an evaporation fan, a condensation fan, a fresh air fan and other devices, the current overload detection module is arranged at an output port of the electric bus air-conditioning battery, detection of the current of the power supply circuit of the electric bus air-conditioning battery can be achieved, the detected current value is transmitted to the controller, the controller judges whether the current value exceeds a threshold value, if so, the controller controls the switch circuit to be closed, the switch circuit can be a switch triode, the switch triode base is a control end of the switch circuit, a collector electrode of the switch triode is an anode end of the switch circuit, an emission electrode of the switch triode is an anode end of the switch circuit, the transformer converts high voltage 200V-820V into working voltage 10-20V of the evaporation fan and the condensation fan, power supply of the evaporation fan and the condensation fan is achieved, the working voltage of the evaporation fan and the condensation fan cannot be exceeded, the working voltage of the evaporation fan and the condensation fan can be stably operated, and the service life of the evaporation fan and the condensation fan is prolonged.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a circuit block diagram of a DC-DC power circuit for an air conditioner of a new energy electric bus;
FIG. 2 is a schematic diagram of a circuit board and a controller;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
fig. 4 is an enlarged view at B in fig. 3.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the present invention more clear and easy to understand, the present invention is further described below with reference to the accompanying drawings and the detailed description:
as shown in fig. 1, a DC-DC power supply circuit for an air conditioner of a new energy electric bus includes:
the monitoring circuit comprises a current overload detection module and a controller, wherein the current overload detection module is connected in series with the power supply circuit of the air conditioning battery of the new energy electric motor coach so as to detect the current in the power supply circuit of the air conditioning battery of the new energy electric motor coach, and the output end of the current overload detection module is connected to the controller;
a switching circuit;
the positive pole of new forms of energy [ electric ] motor coach air conditioner battery is connected to the positive pole input of transformer, and the negative pole input of transformer is connected to switch circuit's positive pole end, and switch circuit's negative pole ground connection is connected to the controller, and the positive pole output of transformer is connected to the positive pole of evaporation fan and condensation fan, and the negative pole output of transformer is connected to the negative pole of evaporation fan and condensation fan. During operation, the current overload detection module monitors the current of the power supply circuit of the electric bus air-conditioning battery in real time, the electric bus air-conditioning battery simultaneously needs to supply power to equipment such as a four-way valve, an evaporation fan, a condensation fan and a fresh air fan, the current overload detection module is arranged at an output port of the electric bus air-conditioning battery, detection of the current of the power supply circuit of the electric bus air-conditioning battery can be achieved, the detected current value is transmitted to the controller, the controller judges whether the current value exceeds a threshold value, if so, the controller controls the switch circuit to be closed, the switch circuit can be a switch triode, a control end of the switch triode is used as a base of the switch circuit, a collector electrode of the switch triode is used as an anode end of the switch circuit, an emission end of the switch triode is used as a cathode end of the switch circuit, the transformer converts high voltage 200V-820V into working voltage of the evaporation fan and the condensation fan, power supply of the evaporation fan and the condensation fan is achieved, the working voltage of the evaporation fan and the condensation fan cannot exceed the working voltage of the evaporation fan and the condensation fan, stable working can be achieved, and the service life of the evaporation fan and the condensation fan is prolonged.
As shown in fig. 2 to 4, since the program needs to be rewritten into the controller 2 in order to improve the operation mechanism of the evaporation fan, the condensation fan, and the like in the later stage, the controller 2 needs to be detached. Therefore, in order to facilitate the disassembly of the controller 2, the monitoring circuit, the switching circuit and the transformer are all arranged on a circuit board 1, the circuit board 1 is provided with a mounting seat for mounting the controller 2, the controller 2 comprises a control body 1121 and a plurality of pins 22 for connecting a barrel circuit, and all the pins 22 are arranged on two opposite edges of the control body 1121 in two rows;
the mount pad includes: the power-on module comprises a body 11, a power-on module 12, a first driving module 13 and a second driving module 14, wherein a plurality of insertion holes are formed in the surface of the body 11, each insertion hole is inserted by a pin 22, and the power-on module 12, the first driving module 13 and the second driving module 14 are arranged on the body 11;
each of the insertion holes is provided with a power receiving assembly 12, and each power receiving assembly 12 includes: the roller 121, the first installation block 122, the pull claw 123, the movable rod 124, the second installation block 125, the conducting ring 126, the first spring 127 and the fourth spring 128, an installation cavity is formed in the body 11, an installation cavity is formed beside each insertion hole, one end of the conducting ring 126 stretches into the installation cavity, the other end of the conducting ring 126 penetrates through a guide hole formed in the body 11, the guide holes are communicated with the insertion holes, one end of the conducting ring 126 positioned in the installation cavity is sleeved on the movable rod 124, the central lines of the movable rod 124 and the conducting ring 126 are parallel to the insertion direction of the pins 22, the end, far away from the guide ring, of the movable rod 124 is provided with the rotatable roller 121, the outer wall of the movable rod 124 is provided with the first installation block 122 positioned beside the roller 121, the movable rod 124 penetrates through the first spring 127, one end of the first spring 127 is fixed with the conducting ring 126, the other end of the first spring 127 is fixed with the first installation block 122, the end, at the end, positioned in the installation cavity, of the conducting ring 126 is provided with the second installation block 125, one end 123 is arranged on the first installation block 122, the other end 123 is not stretched to the direction of the second installation block 125, and is not connected with the fourth spring 126, and can be separated from the fixed to the first installation block 125, and the inner wall of the fixed side of the conducting ring is connected with the fourth spring 125;
a first driving assembly 13 is disposed at each insertion hole, and each first driving assembly 13 includes: the extrusion plate 131, the second spring 132, the moving rod 133, the driving block 134, the first driving rod 135, the second driving rod 136, the rotating cylinder 137, the coil spring 138, the center column 139 and the eccentric wheel 130 are respectively provided with a containing cavity beside each pair of the inserting holes and the installing cavity, the extrusion plate 131 is arranged in the inserting holes, the plane of the extrusion plate 131 is vertical to the direction of inserting the pins 22 into the inserting holes, a moving rod 133 extending away from the pins 22 is fixed on the extrusion plate 131, one end of the moving rod 133 away from the extrusion plate 131 extends into the containing cavity and is fixed on the driving block 134, the moving rod 133 is parallel to the direction of inserting the pins 22 into the inserting holes, the driving block 134 is connected to one end of the first driving rod 135, the other end of the first driving rod 135 extends into the installation cavity, the first driving rod 135 is parallel to the moving rod 133, the first driving rod 135 is hinged with one end of a second driving rod 136 positioned in the installation cavity, the other end of the second driving rod 136 is hinged to one end of a rotating cylinder 137, the rotating cylinder 137 passes through and is fixedly provided with an eccentric wheel 130, the central line of the eccentric wheel 130 and the central line of the rotating cylinder 137 are not in the same line, a central column 139 which is in the same line with the central line of the rotating cylinder 137 is fixedly arranged on the inner wall of the installation cavity, the rotating cylinder 137 can be rotatably arranged on the inner wall of the installation cavity, a coil spring 138 is convoluted between the rotating cylinder 137 and the central column 139, the outer end of the coil spring 138 is fixedly connected with the rotating cylinder 137, the inner end of the coil spring 138 is fixedly connected with the central column 139, and the eccentric wheel 130 is tangential with the roller 121;
the second drive assembly 14 includes: the clamping columns 141, the third mounting blocks 142, the fourth mounting blocks 143, the third springs 144, the pulling blocks 145 and the pull-assisting rods 146 are arranged in each mounting cavity in a penetrating way, the clamping columns 141 are parallel to the movable rods 124, the third springs 144 penetrate through the clamping columns 141, the third mounting blocks 142 are fixed on each clamping column 141, the fourth mounting blocks 143 are arranged on each conducting ring 126, the fourth mounting blocks 143 are positioned on one side, away from the insertion holes, of the third mounting blocks 142, one end of each third spring 144 is fixed with each third mounting block 142, the other end of each third spring 144 is fixed with the inner wall of each mounting cavity, each clamping column 141 corresponding to one row of pins 22 is fixed to one pulling block 145 positioned outside the body 11, and the pull-assisting rods 146 parallel to the clamping columns 141 are fixed on the surface, away from the body 11, of each pulling block 145;
when the auxiliary pull rod 146 is pulled by no external force, the first spring 127 is always in a compressed state, and the second mounting block 125 is tightly attached to the pull claw 123; when the auxiliary pull rod 146 is pulled by external force, a distance is kept between the second mounting block 125 and the pull claw 123; when the auxiliary pull rod 146 is pulled by no external force and the pin 22 is inserted into the insertion hole, the roller 121 is tangent to the wide edge of the eccentric wheel 130, and the fourth spring 128 is compressed to keep the conductive ring 126 tightly attached to the pin 22; when the auxiliary pull rod 146 is pulled by no external force and the pin 22 is not inserted into the insertion hole, the roller 121 is tangent to the narrow edge of the eccentric wheel 130, and the conductive ring 126 can be kept not to extend into the insertion hole under the elasticity of the fourth spring 128. The distance from the wide edge of the eccentric 130 to the centerline of the rotating cylinder 137 is greater than the distance from the narrow edge of the eccentric 130 to the centerline of the rotating cylinder 137.
The working principle of the embodiment is as follows: when the auxiliary pull rod 146 is inserted, firstly, the auxiliary pull rod 146 is kept to be pulled, so that the clamping column 141 is far away from the insertion hole to be inserted, the clamping column 141 can be kept to be inserted into the insertion hole under the elasticity of the third spring 144, the pin 22 can be prevented from being inserted into the insertion hole when the auxiliary pull rod 146 is not pulled, and the phenomenon of misoperation is avoided; then, insert the pin 22 of controller 2 to the insertion hole in for pin 22 begins to compress squeeze plate 131, make movable rod 133 to hold the intracavity and stretch out and draw back, first drive rod drives the second drive rod and to hold the intracavity place direction and remove (when the length that first drive rod is located in the installation cavity is long enough (the state of not inserting pin 22), be the acute angle under the elasticity of coil spring 138 between second drive rod and the first drive rod, namely the second drive rod is located to hold the distance between the chamber greatly with rotating cylinder 137 junction, consequently, can make the second drive rod drive rotating cylinder 137 when first drive rod length reduces in the installation cavity, make the second drive rod be pulled to the position parallel with first drive rod on, and then drive rotating cylinder 137 and eccentric wheel 130 rotation, make eccentric wheel 130 broadside extrusion gyro wheel 121, force fourth spring 128 compressed, make the length of first spring 127 shorten, there is the trend of pushing the conducting ring 126 to the conducting ring in the insertion hole under the elasticity of first spring 127 by force this moment, it is in order to prevent the conducting ring 126 from inserting the conducting ring through the card action of the second drive rod and rotating cylinder 137 junction to the conducting ring 126, but can not be had the conducting ring 126 to the mutual trend to the conducting ring 126 simultaneously, can be had the conducting ring 126 is inserted to the conducting ring 126 to the position is had to the conducting ring 126 in the fact that the conducting ring is inserted into the conducting ring 126 with the conductor ring 126 through the effect of the first drive rod 141 and the inner conductor ring-carrying wire 126 has been inserted into the position of the inner side of the conductor 126. When the pin 22 is pulled out, the pull-assisting rod 146 is pulled first to enable the clamping post 141 to release the pin 22, the guide ring is retracted into the guide hole, then the pin 22 is pulled out, when the pin 22 is pulled out, the first driving rod stretches into the installation cavity, the second driving rod and the rotating cylinder 137 are driven to rotate under the elasticity of the coil spring 138, the narrow edge of the eccentric wheel 130 is tangent to the roller 121, the movable rod 124 moves towards the direction deviating from the guide ring under the elasticity of the fourth spring 128 and the first spring 127, and if the second driving rod 123 is pulled to move towards the eccentric wheel 130 continuously, the second installation block 125 drives the conductive ring 126 to move together, so that the problem that the movable rod 124 moves towards the eccentric wheel 130 and the conductive ring 126 cannot move towards the eccentric wheel 130 is solved.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (1)
1. A DC-DC power supply circuit for an air conditioner of a new energy electric bus, comprising: the monitoring circuit comprises a current overload detection module and a controller, wherein the current overload detection module is connected in series with the power supply circuit of the air conditioning battery of the new energy electric motor coach so as to detect the current in the power supply circuit of the air conditioning battery of the new energy electric motor coach, and the output end of the current overload detection module is connected to the controller;
a switching circuit; the positive electrode of the air-conditioning battery of the new energy electric bus is connected to the positive electrode input end of the transformer, the negative electrode input end of the transformer is connected to the positive electrode end of the switch circuit, the negative electrode end of the switch circuit is grounded, the control end of the switch circuit is connected to the controller, the positive electrode output end of the transformer is connected to the positive electrodes of the evaporation fan and the condensation fan, and the negative electrode output end of the transformer is connected to the negative electrodes of the evaporation fan and the condensation fan;
when the intelligent electric motor car air conditioner is in operation, the current overload detection module monitors the current of the power supply circuit of the electric motor car air conditioner battery in real time, the electric motor car air conditioner battery simultaneously needs to supply power to the four-way valve, the evaporation fan, the condensation fan and the fresh air fan, the current overload detection module is arranged at the output port of the electric motor car air conditioner battery, the detection of the current of the power supply circuit of the electric motor car air conditioner battery can be realized, the detected current value is transmitted to the controller, the controller judges whether the current value exceeds a threshold value, if the current value exceeds the threshold value, the controller controls the switch circuit to be closed, the switch circuit is a switch triode, the base of the switch triode is the control end of the switch circuit, the collector of the switch triode is the positive end of the switch circuit, the emission of the switch triode is the negative end of the switch circuit, and the transformer converts the large voltage of 200V-820V into the working voltage of the evaporation fan and the condensation fan of 10-20V;
the monitoring circuit, the switching circuit and the transformer are all arranged on a circuit board, the circuit board is provided with a mounting seat for mounting a controller, the controller comprises a control body and a plurality of pins for connecting a barrel circuit, and all the pins are arranged on two opposite edges of the control body in two rows;
the mount pad includes: the device comprises a body, an electric connection assembly, a first driving assembly and a second driving assembly, wherein a plurality of insertion holes are formed in the surface of the body, each insertion hole is used for inserting a pin, and the electric connection assembly, the first driving assembly and the second driving assembly are arranged on the body;
each insertion hole is provided with an electric connection assembly, and each electric connection assembly comprises: the device comprises a roller, a first mounting block, a pull claw, a movable rod, a second mounting block, a conducting ring, a first spring and a fourth spring, wherein a mounting cavity is formed in a body, a mounting cavity is formed beside each insertion hole, one end of the conducting ring stretches into the mounting cavity, the other end of the conducting ring passes through a guide hole formed in the body, the guide holes are communicated with each other, one end of the conducting ring in the mounting cavity is sleeved on the movable rod, the center lines of the movable rod and the conducting ring are parallel to the pin insertion direction, the end part of the movable rod, away from the guide ring, is provided with the rotatable roller, the outer wall of the movable rod is provided with the first mounting block positioned beside the roller, the movable rod passes through the first spring, one end of the first spring is fixed with the conducting ring, the other end of the first spring is fixed with the first mounting block, the end part of the conducting ring positioned in the mounting cavity is provided with the second mounting block, the first mounting block is mounted to one end of the pull claw, the other end of the pull claw extends towards the direction of the second mounting block and can hook the second mounting block from the side away from one side, the conducting ring and cannot be separated from the guide hole, the first end of the conducting ring is not separated from the guide ring, the first end is connected with the first spring and the fourth spring is fixed with the inner wall, and the first spring is fixed;
each insertion hole is provided with a first driving assembly, and each first driving assembly comprises: the coil spring type coil spring comprises an extrusion plate, a second spring, a moving rod, a driving block, a first driving rod, a second driving rod, a rotary drum, a coil spring, a central column and an eccentric wheel, wherein a containing cavity is formed beside each pair of an insertion hole and a mounting cavity, the extrusion plate is arranged in the insertion hole, the plane of the extrusion plate is perpendicular to the direction of inserting a pin into the insertion hole, the moving rod extending in the direction deviating from the pin is fixed on the extrusion plate, one end of the moving rod far away from the extrusion plate extends into the containing cavity and is fixed on a driving block, the direction of inserting the moving rod into the insertion hole is parallel to the direction of inserting the pin, the driving block is connected to one end of the first driving rod, the other end of the first driving rod extends into the mounting cavity, the first driving rod is parallel to the moving rod, the first driving rod is hinged to one end of the second driving rod positioned in the mounting cavity, the other end of the second driving rod is hinged to one end of the rotary drum, the rotary drum penetrates and is fixed with the eccentric wheel, the central line of the eccentric wheel is not in a straight line, the central line of the eccentric wheel is fixed on the inner wall of the mounting cavity, the central line of the rotary drum and the central line of the eccentric wheel is fixed on the inner wall of the rotary drum and the inner wall of the rotary drum is in a straight line, the inner wall of the cylindrical drum is fixed between the central column and the cylindrical coil spring and the coil spring rotating drum rotating in a tangent way;
the second drive assembly includes: the device comprises a plurality of clamping columns, a plurality of third mounting blocks, a plurality of fourth mounting blocks, a plurality of third springs, a pull block and a pull rod, wherein each mounting cavity is internally penetrated by a clamping column, the clamping columns are parallel to a movable rod, the clamping columns penetrate through the third springs, each clamping column is fixedly provided with the third mounting blocks, each conducting ring is provided with the fourth mounting blocks, the fourth mounting blocks are positioned at one side of the third mounting blocks, which is far away from an insertion hole, one end of each third spring is fixed with the third mounting blocks, the other end of each third spring is fixed with the inner wall of the mounting cavity, each clamping column corresponding to a row of pins is fixed on one pull block positioned outside the body, and the surface, which is far away from the body, of each pull block is fixedly provided with the pull rod parallel to the clamping column;
when no external force pulls the auxiliary pull rod, the first spring is always in a compressed state, and the second mounting block is tightly attached to the pull claw; when external force pulls the auxiliary pull rod, a distance is kept between the second mounting block and the pull claw; when no external force pulls the auxiliary pull rod and the pin is inserted into the insertion hole, the roller is tangent to the wide edge of the eccentric wheel, and the fourth spring is compressed to keep the conducting ring tightly attached to the pin; when no external force is used for pulling the auxiliary pull rod and the pins are not inserted into the insertion holes, the idler wheels are tangent to the narrow edges of the eccentric wheels, and the conductive rings can be kept from extending into the insertion holes under the elastic force of the fourth springs.
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| CN108954827B (en) * | 2018-05-16 | 2020-10-13 | 重庆国翰能源发展有限公司 | Hybrid energy supply device |
| CN114576818B (en) * | 2022-05-07 | 2022-09-02 | 中山大洋电机股份有限公司 | Control method for flow-limiting derating of fresh air conditioner |
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| EP2587614A2 (en) * | 2011-08-31 | 2013-05-01 | Sony Corporation | Electric storage apparatus, electronic device, electric vehicle, and electric power system |
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