CN209479431U - A kind of control protective unit of electric car charger - Google Patents
A kind of control protective unit of electric car charger Download PDFInfo
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- CN209479431U CN209479431U CN201920006913.2U CN201920006913U CN209479431U CN 209479431 U CN209479431 U CN 209479431U CN 201920006913 U CN201920006913 U CN 201920006913U CN 209479431 U CN209479431 U CN 209479431U
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- switch
- push rod
- coil
- contact
- relay switch
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- 230000001681 protective effect Effects 0.000 title claims abstract description 75
- 238000003825 pressing Methods 0.000 claims abstract description 24
- 230000000694 effects Effects 0.000 claims abstract description 13
- 238000001514 detection method Methods 0.000 claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 67
- 230000003068 static effect Effects 0.000 claims description 57
- 238000005192 partition Methods 0.000 claims description 27
- 229910052742 iron Inorganic materials 0.000 claims description 17
- 230000005611 electricity Effects 0.000 claims description 15
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 101100459267 Crotalus durissus terrificus CRO3 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
A kind of control protective unit of electric car charger, protective device input terminal are electrically connected with the first line end, and a pair of of normally opened contact that control connects or disconnects the electromagnetic movement switch of effect has been equipped between protective device input terminal and the first line end；Second terminals are electrically connected with protective device output end, and the coil of the current detecting relay switch of detection size of current effect has been equipped between the second terminals and protective device output end；When pressing electromagnetic movement switch; this for making electromagnetic movement switch is in closed state to normally opened contact; when electric current on the coil of the current detecting relay switch is less than in the preset current value range of current detecting relay switch; this of current detecting relay switch is in closed state to normally-closed contact again; the input terminal for controlling the 5V power module A is conducted with protective device input terminal; the coil of the output end control electromagnetic movement switch of 5V power module A is conductive, so that this of electromagnetic movement switch be made to be in an off state normally opened contact again.
Description
Technical field
The utility model relates to electric car charger technical field, the control of specifically a kind of electric car charger is protected
Device.
Background technique
Electric car charger is a charging equipment exclusively for storage battery (battery of electric vehicle group) configuration of electric bicycle.
Traditional electric car charger is that alternating current is directly inserted into one end of charger, is carried out on other end insertion electric vehicle
Charging.When the indicator light of charger becomes green light, illustrate battery truck charging complete, user needs manually to pull out line disconnected
Electricity completes charging.However, electric vehicle is most of all in use state on daytime, the time of charging be concentrated mainly at night into
Row, many times electric car charger has finished to electric vehicle charging and has not still pulled out charger, makes electric vehicle always
Under charged state, on the one hand, the service life of electric vehicle accumulator is shortened, on the other hand, the electric vehicle accumulator having been filled with
For a long time under charged state, it be easy to cause electric vehicle accumulator bulge occur, or even cause fire.
Summary of the invention
The purpose of this utility model is that: in view of the above shortcomings of the prior art, provide it is a kind of it is highly-safe, without artificial
Line power-off is pulled out, alternating current can be disconnected automatically after automatic time delay charging a period of time after the electric vehicle accumulator charging complete saved worry of saving trouble
The electric car charger that alternating current is powered to charger is disconnected automatically after to charger power supply or electric vehicle accumulator charging complete to use
Control protective unit.
The technical solution adopted in the utility model is a kind of control protective unit of electric car charger, the protection
Device includes protective device input terminal, the first terminals, electromagnetic movement switch, the second terminals, protective device output end, electric current
Detection relay switch and 5V power module A, the protective device input terminal are electrically connected with the first line end, and the protective device is defeated
Enter to be provided with the control protective device input terminal between end and the first line end and the first line end connects or disconnects effect
The electromagnetic movement switch a pair of of normally opened contact；Second terminals are electrically connected with the protective device output end, institute
State be provided between the second terminals and the protective device output end detect second terminals and the protective device it is defeated
The coil of the current detecting relay switch of size of current effect between outlet；When pressing the electromagnetic movement switch, make
This of the electromagnetic movement switch is in closed state to normally opened contact, and the electric current on the coil of the current detecting relay switch is big
When the current detecting relay switch preset current value range, the normally closed touching of a pair of the current detecting relay switch
Point disconnects；When pressing the electromagnetic movement switch, this for making the electromagnetic movement switch is in closed state to normally opened contact, described
Electric current on the coil of current detecting relay switch is less than in the preset current value range of current detecting relay switch
When, this of the current detecting relay switch is in closed state to normally-closed contact again, controls the defeated of the 5V power module A
Enter end to conduct with the protective device input terminal, the output end of the 5V power module A controls the electromagnetic movement switch
Coil is conductive, so that this of the electromagnetic movement switch be made to be in an off state normally opened contact again.
The protective device further includes that 5V power module B and microcomputer time controller make when pressing the electromagnetic movement switch
This of the electromagnetic movement switch is in closed state to normally opened contact, and the electric current on the coil of the current detecting relay switch is small
When in the preset current value range of current detecting relay switch, this of the current detecting relay switch is to normally closed
Contact controls the input terminal of the 5V power module B after re-closing and the protective device input terminal conducts, the 5V electricity
The output end of source module B controls the microcomputer time controller and starts timing, also, when microcomputer time controller arrival is set in advance
After fixed timing time, the output end of the microcomputer time controller control the 5V power module A input terminal and the protection
Device input terminal conducts, and the coil that the output end of the 5V power module A controls the electromagnetic movement switch is conductive, to make
This of the electromagnetic movement switch is in an off state normally opened contact again.
The protective device further includes 5V power module C, relay switch, 5V voltage reduction module and the electricity that electric vehicle is arranged in
Temperature detect switch (TDS) on the group outer wall of pond, when the protective device output end is connected with the battery pack of the electric vehicle, the temperature control
Switch can be connect with the input terminal of the 5V voltage reduction module, the output end of the 5V voltage reduction module and the electromagnetic movement switch
Coil connection, has been provided between the 5V voltage reduction module and the temperature detect switch (TDS) and has been connected to or disconnects the 5V voltage reduction module and institute
State a pair of of normally opened contact of the relay switch of temperature detect switch (TDS) effect, the coil of the relay switch and the 5V power supply
Module C connection；When pressing the electromagnetic movement switch, this for making the electromagnetic movement switch is in closed state to normally opened contact
When, input terminal and the protective device input terminal of the 5V power module C conducts, the output end of the 5V power module C
The coil for controlling the relay switch is conductive, this for making the relay switch is closed normally opened contact；Also, work as the guarantor
Protection unit output end is connected with the battery pack of the electric vehicle, and the temperature detect switch (TDS) detects the battery pack outer wall of the electric vehicle
Temperature be greater than when presetting temperature values of temperature detect switch (TDS), temperature detect switch (TDS) closure, and the protection can be controlled
Device output end controls the 5V voltage reduction module and allows the electricity after this of the relay switch of closure is to normally opened contact
The coil of magnetic step switch is conductive, resets the electromagnetic movement switch pressed, this of the electromagnetic movement switch is to normally opened touching
Point is again at off-state.
The electromagnetic movement switch is mainly by braced frame, the first push rod, the second push rod, sliding bar, electromagnet, static contact
It being formed with moving contact, the braced frame is mainly made of outline border, first partition, second partition and third partition, and described first
Partition is arranged in outline border along upper and lower direction, outline border is divided into left and right two regions, left area passes through second, third partition
It is divided into above and below to the first area of arrangement, second area, and the second partition is parallel to the upper side frame of outline border；Described
One push rod and the second push rod arranged for interval are parallel to each other, first push rod, second push rod respectively from top to bottom according to
The secondary upper side frame across outline border, second partition, the part that first push rod is located at outside the upper side frame of outline border are provided with reset bullet
Spring, the upper end of the reset spring are connected to the top position of the first push rod, and lower end is connected on the upper side frame outer surface of outline border,
The top of the first push rod lower end is located in second area, is provided with the first trapezoid block on first push rod；Described second pushes away
The part that bar is located at outside the upper side frame of outline border is provided with reset spring, and the upper end of the reset spring is connected to the top of the second push rod
Position, lower end are connected on the upper side frame outer surface of outline border, and the top of the second push rod lower end is located in second area, described
The second trapezoid block is provided on second push rod；The sliding bar left end passes through the left frame of outline border, and the sliding bar middle section is solid
Surely it is provided with guide holder, is provided with spring on the sliding bar between the left side of the guide holder and the outline border left frame, the sliding
Bar right end is fixedly connected with the flexible iron core in the electromagnet, and the electromagnet is somebody's turn to do on being fixed on the inside of the left frame of outline border
Coil of the coil as electromagnetic movement switch on electromagnet is provided on the guide holder of the sliding bar and is matched with described first
The oblique sliding surface on inclined-plane on the left of trapezoid block, is matched with the oblique sliding surface on inclined-plane on the left of second trapezoid block, and is matched with described the
The fore shaft being open to the right is offered below the oblique sliding surface on inclined-plane on the left of two trapezoid blocks；The static contact and moving contact are arranged in left side
In second area in region, and be separately fixed in second area, extend the lower frame of the outline border static contact part,
A pair of of normally opened contact of the connecting pin of moving contact part as the electromagnetic movement switch；When pressing the electromagnetic movement switch
Afterwards, second push rod moves down, on the guide holder of the inclined-plane on the left of the trapezoid block of second push rod and the sliding bar
The oblique sliding surface of Corresponding matching contacts, and pushes sliding bar mobile to the left side, the trapezoid block of second push rod is snapped down to the sliding
At fore shaft position below the oblique sliding surface of the guide holder Corresponding matching of bar, under the action of the spring that sliding bar left end is arranged, institute
Stating sliding bar, side direction resets to the right, and the fore shaft on the guide holder of the sliding bar is made to block the trapezoid block of second push rod,
Meanwhile the top of second push rod lower end contacts with moving contact and moving contact is pushed to be bonded and be connected on static contact；Work as institute
The coil stated on electromagnet is conductive, and under the action of the electromagnet coil, side direction is mobile to the left for the iron core of the electromagnet,
Side direction is mobile to the left for sliding bar described in synchronous drive, meanwhile, under the action of the reset spring on the second push rod, described second
Fore shaft on the guide holder of the trapezoid block of push rod and the sliding bar disengages, and second push rod resets upwards, makes the second push rod
The top of lower end and moving contact separate, so that moving contact and static contact be made to disconnect；Alternatively, the coil on the electromagnet is not led
When electric, first push rod is pressed, on the guide holder on the inclined-plane and the sliding bar on the left of trapezoid block on first push rod
The contact of oblique sliding surface, pushing the sliding bar, side direction is mobile to the left, meanwhile, the effect of the reset spring on the second push rod
Under, the fore shaft on the trapezoid block of second push rod and the guide holder of the sliding bar can be made to disengage, second push rod to
Upper reset separates top and the moving contact of the second push rod lower end, so that moving contact and static contact be made to disconnect.
The current detecting relay switch is mainly by frame, pedestal, pillar, iron core, coil, iron plate, moving contact, normally closed quiet
Contact and normally opened static contact composition, the base of frame is fixed with pedestal, is arranged cored on the pedestal, winds on the iron core
There is coil, which is made of the copper wire circle of coiling 20 arranged side by side of 24 gangs of 0.3mm, and a branch is also vertically provided on the pedestal
The bottom end of column, the pillar is fixedly connected with the base, and top is fixedly connected with the elastic piece for being parallel to the iron core top surface, should
The end of elastic piece is moving contact, is provided with one piece on the elastic piece corresponding to the iron core top surface surface and is parallel to this
The iron plate of iron core top surface, is fixedly connected with that there are two static contacts on the frame, is bonded with the moving contact on the elastic piece quiet
Contact is that the static contact that the moving contact on normally closed static contact, with the elastic piece separates is normally opened static contact；The current detecting
A pair of of normally-closed contact of relay switch is the normally closed static contact on moving contact and the frame on the elastic piece；When pressing
Electromagnetic movement switch is stated, this for making the electromagnetic movement switch is in closed state to normally opened contact, and the current detecting is after establishing by cable
When electric current on the coil of pass is greater than the current detecting relay switch preset current value range, the current detecting after
The iron core of the coil of electric switch and the current detecting relay switch cooperates together, is pull-in on the iron plate on the elastic piece
On the top surface of the iron core, moving contact on the elastic piece in the current detecting relay switch with it is normal on the frame
Static contact disconnection is closed, is closed with the normally opened static contact on the frame；When pressing the electromagnetic movement switch, act the electromagnetism
This of switch is in closed state to normally opened contact, and the electric current on the coil of the current detecting relay switch is less than the electric current
When detecting in the preset current value range of relay switch, the top surface of iron plate and the iron core on the elastic piece is not inhaled
It closes, the moving contact on the elastic piece in the current detecting relay switch closes again with the normally closed static contact on the frame
It closes, is disconnected with the normally opened static contact on the frame, the input terminal and the protective device for controlling the 5V power module A input
End conducts, and the coil that the output end of the 5V power module A controls the electromagnetic movement switch is conductive, to make the electromagnetism
This of step switch is in an off state normally opened contact again.
The beneficial effects of the utility model are:
1. the utility model is highly-safe, powers off without manually pulling out line, saves trouble and save worry, energy after electric vehicle accumulator charging complete
Automatically alternating current is disconnected after enough automatic time delay charging a period of times to energy after charger power supply or electric vehicle accumulator charging complete
The automatic alternating current that disconnects is powered to charger.
2. in the utility model, microcomputer time controller is arranged, delay charging is done after full to electric vehicle accumulator charging, so as to
It is saturated in enabling electric vehicle accumulator to reach electricity.
3. in the utility model, temperature detect switch (TDS) being arranged, prevents electric vehicle accumulator from occurring excessively high temperature during the charging process
When, charge power supply can be disconnected in time, improve safety.
Detailed description of the invention
The utility model will be further described below with reference to the accompanying drawings.
Fig. 1 is the working principle diagram of the utility model charge control protector.
Fig. 2 is the schematic diagram of electromagnetic movement switch in the utility model.
Fig. 3 is the schematic diagram of current detecting relay switch in the utility model.
Code name meaning in figure: 1-protective device input terminal；2-the first terminals；3-electromagnetic movement switch；4-the second
Terminals；5-protective device output ends；6-current detecting relay switch；7-5V power module A；8-5V power module B；
9-microcomputer time controllers；10-5V power module C；11-relay switches；12-5V voltage reduction modules；13-temperature detect switch (TDS)s；
14-battery packs；15-braced frames；16-outline borders；17-first partitions；18-second partitions；19-third partitions；20—
First push rod；21-the second push rod；22-sliding bars；23-electromagnet；24-static contacts；25,32-moving contact；26-frames
Frame；27-pedestals；28-pillars；29-iron cores；30-coils；31-iron plates；33-normally closed static contacts；34-normally opened stationary contacts
Head；35-springs；36-reset springs；37-the first trapezoid block；38-guide holders；39-the second trapezoid block；40-elastic pieces.
Specific embodiment
Referring to shown in Fig. 1 to Fig. 3: the utility model is a kind of control protective unit of electric car charger, this is practical
New type of safe is high, powers off without manually pulling out line, time saving to save worry, being capable of automatic time delay charging one after electric vehicle accumulator charging complete
Section the time after disconnect automatically alternating current to charger power supply or electric vehicle accumulator charging complete after disconnect alternating current automatically to charger
Power supply.
Above-mentioned protective device includes protective device input terminal 1, the first terminals 2, electromagnetic movement switch 3, the second terminals
4, protective device output end 5, current detecting relay switch 6 and 5V power module A7(model: SANMIM).Wherein, protective device
Input terminal 1 for be electrically connected with city, protective device output end 5 be used for electric vehicle charging input socket (charging input socket and
The connection of battery of electric vehicle group) connection；First terminals 2, the second terminals 4 respectively correspond with the input terminal of electric car charger,
Output end connection.When exclusive use electric car charger is that electric vehicle charges, the input terminal of electric car charger is used for and alternating current
Connection, output end are used to connect with electric vehicle charging input socket (charging input socket is connected to battery of electric vehicle group).
The protective device input terminal 1 is electrically connected with the first line end, the protective device input terminal 1 and the first line end
Between be provided with to control the protective device input terminal 1 and the first line end and connect or disconnect the electromagnetism of effect and act and open
Close 3 a pair of of normally opened contact.Wherein, the electromagnetic movement switch 3 includes at least a pair of of normally opened contact and one group of coil.It is described
Second terminals 4 are electrically connected with the protective device output end 5, second terminals 4 and the protective device output end 5 it
Between be provided with the electric current for detecting the effect of the size of current between second terminals 4 and the protective device output end 5
Detect the coil of relay switch 6.Wherein, the current detecting relay switch 6 includes at least a pair of of normally-closed contact and one group of coil.
When pressing the electromagnetic movement switch 3, this for making the electromagnetic movement switch 3 is in closed state to normally opened contact,
(the i.e. described current detecting relay switch 6 is detected through described second electric current on the coil 30 of the current detecting relay switch 6
The anode of terminals 4, the coil of the current detecting relay switch 6, the protective device output end 5 anode, battery of electric vehicle
Group anode, battery of electric vehicle group cathode, the cathode of the protective device output end 5, second terminals 4 cathode formed
The electric current of electrical circuit, similarly hereinafter) be greater than the preset current value range of the current detecting relay switch 6 (in present embodiment,
Preset current value range is that 1000mA~1100mA can be adjusted, similarly hereinafter according to practical situation) when, it is described
A pair of of normally-closed contact of current detecting relay switch 6 disconnects；
When pressing the electromagnetic movement switch 3, this for making the electromagnetic movement switch 3 is in closed state to normally opened contact,
(the i.e. described current detecting relay switch 6 is detected through described second electric current on the coil 30 of the current detecting relay switch 6
The anode of terminals 4, the coil of the current detecting relay switch 6, the protective device output end 5 anode, battery of electric vehicle
Group anode, battery of electric vehicle group cathode, the cathode of the protective device output end 5, second terminals 4 cathode formed
When the electric current of electrical circuit, similarly hereinafter) being less than the 6 preset current value range of current detecting relay switch, the electric current inspection
This for surveying relay switch 6 is in closed state to normally-closed contact again, control the input terminal of the 5V power module A7 with it is described
Protective device input terminal 1 conducts, and the coil that the output end of the 5V power module A7 controls the electromagnetic movement switch 3 is led
Electricity, so that this of the electromagnetic movement switch 3 be made to be in an off state normally opened contact again.
In order to do delay charging later to electric vehicle accumulator charging is full, in order to enable electric vehicle accumulator to reach saturation.
Above-mentioned protective device further includes 5V power module B8(model: SANMIM) and microcomputer time controller 9 (model: CRO3).When pressing
The electromagnetic movement switch 3, this for making the electromagnetic movement switch 3 are in closed state to normally opened contact, the current detecting after
It is described when electric current on the coil 30 of electric switch 6 is less than in the preset current value range of the current detecting relay switch 6
Current detecting relay switch 6 this normally-closed contact is re-closed after control the 5V power module B8 input terminal and the guarantor
Protection unit input terminal 1 conducts, and the output end of the 5V power module B8 controls the microcomputer time controller 9 and starts timing, and
And when the microcomputer time controller 9 reach preset timing time (be preset as half an hour to one hour, can also basis
Actual conditions adjustment) after, the output end of the microcomputer time controller 9 control the 5V power module A7 input terminal and the guarantor
Protection unit input terminal 1 conducts, and the coil that the output end of the 5V power module A7 controls the electromagnetic movement switch 3 is conductive,
This to make the electromagnetic movement switch 3 is in an off state normally opened contact again.
When excessively high temperature occurs in electric vehicle accumulator in order to prevent, charge power supply can be disconnected in time, improve safety.Institute
Stating protective device further includes 5V power module C10(model: SANMIM), relay switch 11(model: SRD-05VDC-SL-
A4), 5V voltage reduction module 12(model: YYPOW-1) and the temperature detect switch (TDS) 13(temperature control that is arranged on 14 outer wall of battery pack of electric vehicle
On 14 outer wall of battery pack of the switch 13 by the fixed electric vehicle of anchor ear, temperature detect switch (TDS) model: KSD-01FH65 DEG C), temperature detect switch (TDS)
13 installation requirements are to detect the heating temperature on battery pack outer wall.When the protective device output end 5 and the electricity
When the battery pack 14 of motor-car is connected, the temperature detect switch (TDS) 13 can be connect with the input terminal of the 5V voltage reduction module 12,5V drop
The output end of die block 12 is connect with the coil of the electromagnetic movement switch 3, the 5V voltage reduction module 12 and the temperature detect switch (TDS)
It has been provided with connection between 13 or has disconnected the relay switch of the 5V voltage reduction module 12 with the temperature detect switch (TDS) 13 effect
A pair of of normally opened contact 11(KA1), the coil of the relay switch 11 are connected to the 5V power module C10；
When pressing the electromagnetic movement switch 3, this for making the electromagnetic movement switch 3 is in closed state to normally opened contact
When, input terminal and the protective device input terminal 1 of the 5V power module C10 conducts, and the 5V power module C10's is defeated
The coil that outlet controls the relay switch 11 is conductive, this for making the relay switch 11 is closed normally opened contact；
Also, when the battery pack 14 of the protective device output end 5 and the electric vehicle is connected, the temperature detect switch (TDS) 13 is examined
The temperature for measuring 14 outer wall of battery pack of the electric vehicle is greater than when presetting temperature values of temperature detect switch (TDS) 13, the temperature
Switch 13 is controlled to be closed, and can control the protective device output end 5 through the relay switch 11 that closure this to normal
After opening contact, controls the 5V voltage reduction module 12 and make the coil of the electromagnetic movement switch 3 conductive, make the electromagnetic driven pressed
Make switch 3 to reset, this of the electromagnetic movement switch 3 is again at off-state to normally opened contact.
In addition, though for example by existing electromagnetic movement switch 3(: the earth leakage protective device of DZ47LE-32) it also can be real
The function of existing above-mentioned electromagnetic movement switch 3, but without the economic and practical of the electromagnetic movement switch 3 of the utility model design.
Therefore the following electromagnetic movement switch 3 of design:
It is shown in Figure 2: the electromagnetic movement switch 3 mainly by braced frame 15, the first push rod 20, the second push rod 21,
Sliding bar 22, electromagnet 23, static contact 24 and moving contact 25 form,
Above-mentioned braced frame 15 is mainly made of outline border 16, first partition 17, second partition 18 and third partition 19, described
First partition 17 is arranged in outline border 16 along upper and lower direction, the both ends of first partition 17 respectively correspond with the upper side frame of outline border 16,
Lower frame welds together, and is fixed together by the screw hole screw opened up each other, and outline border 16 is divided into the left and right area Liang Ge
Domain, left area are divided into above and below by second, third partition to the first area of arrangement, second area, and described second every
Plate 18 is parallel to the upper side frame of outline border 16；
First push rod 20 and 21 arranged for interval of the second push rod are parallel to each other, first push rod 20, described
Two push rods 21 from top to bottom sequentially pass through the upper side frame of outline border 16, second partition 18(upper side frame respectively, are all provided on second partition 18
It is equipped with for the through hole across the first, second push rod (the first push rod 21, the second push rod 21)), first push rod 20 is located at
Part outside the upper side frame of outline border 16 is provided with reset spring 36, and the upper end of the reset spring 36 is connected to the top of the first push rod 20
Portion position (top position of the first push rod 20 is provided with the protrusion for keeping out reset spring 36), lower end is connected to outline border 16
On upper side frame outer surface, the top of 20 lower end of the first push rod is located in second area, is provided on first push rod 20
First trapezoid block 37；The part that second push rod 21 is located at outside the upper side frame of outline border 16 is provided with reset spring 36, the reset
The upper end of spring 36 be connected to the second push rod 21 top position (top position of the second push rod 21 be provided with for keep out reset
The protrusion of spring 36), lower end is connected on the upper side frame outer surface of outline border 16, and the top of 21 lower end of the second push rod is located at the
In two regions, the second trapezoid block 39 is provided on second push rod 21；
The left frame that 22 left end of sliding bar passes through outline border 16 (across the medium position of left frame, is opened on left frame
Equipped with the through hole for running through sliding bar 22), it is viscous which is fixedly installed guide holder 38(
It is connected together, alternatively, welding together), the left side (left end face) of the guide holder 38 and 16 left frame of the outline border (outline border 16
Left frame medial surface) between sliding bar 22 on be provided with and (be arranged with) spring 35,22 right end of sliding bar and the electricity
Flexible iron core 29 in magnet 23 is fixedly connected with (the right end end face of sliding bar 22 and the left end of the flexible iron core 29 in electromagnet 23
End face is fixedly connected by welding), the electromagnet 23 be fixed on it is upper on the inside of the left frame of outline border 16 (left frame it is interior
It is provided with card slot on side, the bottom of electromagnet 23 is blocked, or opens up through-hole on the flanging of the bottom of electromagnet 23, leads to
Screw is crossed to be fixed on the left frame medial surface of outline border 16), line of the coil as electromagnetic movement switch 3 on the electromagnet 23
It encloses, is provided with the oblique sliding surface for being matched with the 37 left side inclined-plane of the first trapezoid block on the guide holder 38 of the sliding bar 22, match
Oblique sliding surface in the 39 left side inclined-plane of the second trapezoid block, and it is matched with the oblique sliding surface on the 39 left side inclined-plane of the second trapezoid block
Lower section offers the fore shaft being open to the right；
The static contact 24 and moving contact 25 are arranged in the second area in left area, and are separately fixed at the secondth area
In domain, static contact 24 is erect on the inside of the lower frame of outer frame 16 by column, in the bottom end of the column and the lower frame of outline border 16
Side is welded and fixed, and top welds together with static contact 24, and moving contact 25 passes through first of place in spring leaf and second area
17 left side of partition is fixedly connected, and left end and the moving contact 25 of the spring leaf weld together, and right end is connected in second area
On 17 left side of first partition at place, extend 24 part of static contact, 25 part of moving contact of the lower frame of the outline border 16
A pair of of normally opened contact of the connecting pin as the electromagnetic movement switch 3；
After pressing electromagnetic movement switch 3, second push rod 21 is moved down, second push rod 21 it is trapezoidal
Inclined-plane on the left of block is contacted with the oblique sliding surface of Corresponding matching on 22 guide holder 38 of sliding bar, and sliding bar 22 is pushed to move to the left side
Dynamic, the trapezoid block of second push rod 21 is snapped down to the fore shaft below the oblique sliding surface of 22 guide holder of sliding bar, 38 Corresponding matching
At position, under the action of spring 35 that 22 left end of sliding bar is arranged, side direction resets the sliding bar 22 to the right, makes the cunning
Fore shaft on 22 guide holder 38 of lever blocks the trapezoid block of second push rod 21, meanwhile, the top of 21 lower end of the second push rod
Head contacts with moving contact 25 and pushes moving contact 25 to be bonded and be connected on static contact 24；
When the coil on the electromagnet 23 is conductive, under the action of 23 coil of electromagnet, the electromagnet 23
Side direction is mobile to the left for iron core 29, and side direction is mobile to the left for sliding bar 22 described in synchronous drive, meanwhile, on the second push rod 21
Under the action of reset spring 36, the fore shaft on the trapezoid block of second push rod 21 and 22 guide holder 38 of sliding bar is disengaged,
Second push rod 21 resets upwards, separates the top of 21 lower end of the second push rod and moving contact 25, thus make moving contact 25 and
Static contact 24 disconnects；
Alternatively, pressing first push rod 20, first push rod 20 when the coil on the electromagnet 23 is non-conductive
On trapezoid block on the left of inclined-plane contacted with the oblique sliding surface on 22 guide holder 38 of sliding bar, push the sliding bar 22 to the left
Side direction is mobile, meanwhile, under the action of reset spring 36 on the second push rod 21, the trapezoidal of second push rod 21 can be made
Fore shaft on block and 22 guide holder 38 of sliding bar disengages, and second push rod 21 resets upwards, makes 21 lower end of the second push rod
Top and moving contact 25 separate, so that moving contact 25 and static contact 24 be made to disconnect.
Sliding bar 22 is interfered with each other with the first push rod 20, the second push rod 21 in order to prevent, in the utility model, the sliding
Bar 22 is located at the front side (shown in Figure 2, the direction into paper is front side) of the first push rod 20, the second push rod 21, certainly,
It can be rear side (shown in Figure 2, the direction to outside paper that the sliding bar 22 is located at the first push rod 20, the second push rod 21
For rear side).
Although for example by existing current detecting relay switch 6(: current measurement controls relay, model:
RM4JA31MW it) also can be realized the function of above-mentioned current detecting relay switch 6, but without the electric current of the utility model design
Detect the economic and practical of relay switch 6.
Therefore the following current detecting relay switch 6 of design:
Shown in Figure 3: above-mentioned current detecting relay switch 6 is mainly by frame 26, pedestal 27, pillar 28, iron core 29, line
Circle 30, iron plate 31, moving contact 32, normally closed static contact 33 and normally opened static contact 34 form,
26 bottom of frame is fixed with pedestal 27, is arranged in cored 29(present embodiment on the pedestal 27, iron core
For soft magnetic material, diameter 8mm, the round iron post of length 16mm), be wound with coil 30 side by side on the iron core 29, the coil 30 by
The copper wire of the 24 gangs of 0.3~0.35mm circle of coiling 20 arranged side by side is made, and (coil 30 is made by the copper wire circle of coiling 20 arranged side by side of 24 gangs of 0.3mm
At being made of the copper wire of 24 gangs of 0.32mm coiling 20 arranged side by side circle, or by the copper wire circle of coiling 20 system arranged side by side of 24 gangs of 0.35mm
At), alternatively, being made of the copper wire circle of coiling 30 arranged side by side of 16 gangs of 0.3mm, a pillar is also vertically provided on the pedestal 27
28, the bottom end of the pillar 28 be fixedly connected with the pedestal 27 (using welding or screw be connected and fixed and connect), top with put down
Elastic piece 40 of the row in 29 top surface of iron core is fixedly connected and (is fixedly connected by the way of welding), the end of the elastic piece 40
For moving contact 32, right above 29 top surface of iron core corresponding to the elastic piece 40 on be provided with one piece and be parallel to the iron core 29
The iron plate 31 (iron plate 31 is welded on the lower surface of elastic piece 40) of top surface, is fixedly connected with that there are two stationary contacts on the frame 26
(i.e. normally opened static contact 34 and normally closed static contact 33, the right end of the normally opened static contact 34, the right end of normally closed static contact 33 crimp head
Or be connected on the right side in frame 26), the static contact being bonded with the moving contact 32 on the elastic piece 40 is normally closed quiet
The static contact that moving contact 32 on contact 33, with the elastic piece 40 separates is normally opened static contact 34；Wherein, in order to guarantee its spirit
Quick degree, the gap between 29 top surface of the iron plate 31 and iron core are 0.3~0.5mm, it is preferred that the iron plate 31 and iron core 29 push up
Gap between face is 0.3mm.
A pair of of normally-closed contact of the current detecting relay switch 6 is the moving contact 32 and the frame on the elastic piece 40
Normally closed static contact 33 on frame 26；
When pressing the electromagnetic movement switch 3, this for making the electromagnetic movement switch 3 is in closed state to normally opened contact,
Electric current on the coil 30 of the current detecting relay switch 6 is greater than the preset electric current of the current detecting relay switch 6
When being worth range, the coil 30 of the current detecting relay switch 6 and the iron core 29 of the current detecting relay switch 6 are matched together
It closes, is pull-in on the iron plate 31 on the elastic piece 40 on the top surface of the iron core 29, in the current detecting relay switch 6
Moving contact 32 on the elastic piece 40 and the normally closed static contact 33 on the frame 26 disconnect, and normally opened on the frame 26
Static contact 34 is closed；
When pressing the electromagnetic movement switch 3, this for making the electromagnetic movement switch 3 is in closed state to normally opened contact,
Electric current on the coil 30 of the current detecting relay switch 6 is less than the preset electric current of the current detecting relay switch 6
When being worth in range, iron plate 31 and the top surface of the iron core 29 on the elastic piece 40 are not attracted, and the current detecting is after establishing by cable
The moving contact 32 closed on the elastic piece 40 in 6 is re-closed with the normally closed static contact 33 on the frame 26, with the frame
Normally opened static contact 34 on frame 26 disconnects, at this point, it is shown in Figure 1, if selection switch K is in the closure state, control institute
The input terminal and the protective device input terminal 1 for stating 5v power module A7 conduct, the output end control of the power module A7
The coil of the electromagnetic movement switch 3 is conductive, this for making the electromagnetic movement switch 3 is in disconnection shape to normally opened contact again
State；If selection switch K is in an off state, 5V power module B8 obtains operating voltage, provides work for microcomputer time controller 9
Make voltage, microcomputer time controller 9 works, and starts timing, after 9 timing of microcomputer time controller has arrived, then passes through micro computer
Timer 9 connects (KA2 connection), provides operating voltage, 5V power module A7 conducting for 5V power module A7.Meanwhile the 5V
The input terminal of power module A7 is conducted with the protective device input terminal 1, and the output end of the 5V power module A7 controls institute
The coil for stating electromagnetic movement switch 3 is conductive, so that this of the electromagnetic movement switch 3 be made to be in disconnection shape again to normally opened contact
State.
The above specific technical solution is only to illustrate the utility model, rather than its limitations.Although referring to above-mentioned specific skill
The utility model is described in detail in art scheme, those skilled in the art should understand that: it still can be right
Above-mentioned specific technical solution is modified or equivalent replacement of some of the technical features；And these are modified or replace
It changes, the spirit and scope of it does not separate the essence of the corresponding technical solution the utility model.
Claims (5)
1. a kind of control protective unit of electric car charger, it is characterised in that: the protective device includes that protective device is defeated
Enter end, the first terminals, electromagnetic movement switch, the second terminals, protective device output end, current detecting relay switch and 5V electricity
Source module A,
The protective device input terminal is electrically connected with the first line end, is set between the protective device input terminal and the first line end
It has been equipped with and has controlled the one of the electromagnetic movement switch that the protective device input terminal and the first line end connect or disconnect effect
To normally opened contact；
Second terminals are electrically connected with the protective device output end, and second terminals and the protective device export
The electricity for detecting the effect of the size of current between second terminals and the protective device output end has been provided between end
The coil of stream detection relay switch；
When pressing the electromagnetic movement switch, this for making the electromagnetic movement switch is in closed state, the electricity to normally opened contact
When electric current on the coil of stream detection relay switch is greater than the current detecting relay switch preset current value range, institute
A pair of of the normally-closed contact for stating current detecting relay switch disconnects；
When pressing the electromagnetic movement switch, this for making the electromagnetic movement switch is in closed state, the electricity to normally opened contact
When electric current on the coil of stream detection relay switch is less than in the preset current value range of current detecting relay switch,
This of the current detecting relay switch is in closed state to normally-closed contact again, controls the input of the 5V power module A
End is conducted with the protective device input terminal, and the output end of the 5V power module A controls the line of the electromagnetic movement switch
Circle is conductive, so that this of the electromagnetic movement switch be made to be in an off state normally opened contact again.
2. the control protective unit of electric car charger according to claim 1, it is characterised in that: the protective device is also
Including 5V power module B and microcomputer time controller,
When pressing the electromagnetic movement switch, this for making the electromagnetic movement switch is in closed state, the electricity to normally opened contact
When electric current on the coil of stream detection relay switch is less than in the preset current value range of current detecting relay switch,
The current detecting relay switch this normally-closed contact is re-closed after control the input terminal of the 5V power module B with it is described
Protective device input terminal conducts, and the output end of the 5V power module B controls the microcomputer time controller and starts timing, and
And after the microcomputer time controller reaches preset timing time, the output end of the microcomputer time controller controls institute
The input terminal and the protective device input terminal for stating 5V power module A conduct, and the output end of the 5V power module A controls institute
The coil for stating electromagnetic movement switch is conductive, so that this of the electromagnetic movement switch be made to be in disconnection shape again to normally opened contact
State.
3. the control protective unit of electric car charger according to claim 1, it is characterised in that: the protective device is also
Including 5V power module C, relay switch, 5V voltage reduction module and the temperature detect switch (TDS) being arranged on the battery pack outer wall of electric vehicle,
When the protective device output end is connected with the battery pack of the electric vehicle, the temperature detect switch (TDS) can be dropped with the 5V
The input terminal of die block connects, and the output end of the 5V voltage reduction module is connect with the coil of the electromagnetic movement switch, the 5V drop
It has been provided between die block and the temperature detect switch (TDS) and has been connected to or disconnects the 5V voltage reduction module and temperature detect switch (TDS) effect
A pair of of normally opened contact of the relay switch, the coil of the relay switch are connected to the 5V power module C；
When pressing the electromagnetic movement switch, make the electromagnetic movement switch this to normally opened contact in the closure state, it is described
The input terminal of 5V power module C is conducted with the protective device input terminal, described in the output end control of the 5V power module C
The coil of relay switch is conductive, this for making the relay switch is closed normally opened contact；
Also, when the protective device output end is connected with the battery pack of the electric vehicle, the temperature detect switch (TDS) detects described
The temperature of the battery pack outer wall of electric vehicle is greater than when presetting temperature values of temperature detect switch (TDS), and the temperature detect switch (TDS) is closed,
And the protective device output end can be controlled after this of the relay switch of closure is to normally opened contact, described in control
5V voltage reduction module makes the coil of the electromagnetic movement switch conductive, resets the electromagnetic movement switch pressed, the electromagnetic driven
Make switch this off-state is again to normally opened contact.
4. the control protective unit of electric car charger according to claim 1, it is characterised in that: the electromagnetism movement is opened
Pass is mainly made of braced frame, the first push rod, the second push rod, sliding bar, electromagnet, static contact and moving contact,
The braced frame is mainly made of outline border, first partition, second partition and third partition, the first partition along it is upper,
Lower direction is arranged in outline border, outline border is divided into left and right two regions, left area is divided into above and below by second, third partition
First area, second area to arrangement, and the second partition is parallel to the upper side frame of outline border；
First push rod and the second push rod arranged for interval are parallel to each other, first push rod, second push rod difference
Upper side frame, the second partition of outline border are from top to bottom sequentially passed through, the part that first push rod is located at outside the upper side frame of outline border is set
It is equipped with reset spring, the upper end of the reset spring is connected to the top position of the first push rod, and lower end is connected to the upper side frame of outline border
On outer surface, the top of the first push rod lower end is located in second area, is provided with the first trapezoid block on first push rod；
The part that second push rod is located at outside the upper side frame of outline border is provided with reset spring, and the upper end of the reset spring is connected to second
The top position of push rod, lower end are connected on the upper side frame outer surface of outline border, and the top of the second push rod lower end is located at second
In region, the second trapezoid block is provided on second push rod；
The sliding bar left end passes through the left frame of outline border, which is fixedly installed guide holder, the guide holder
Left side and the outline border left frame between sliding bar on be provided with spring, the sliding bar right end and stretching in the electromagnet
Contracting iron core is fixedly connected, and the electromagnet is fixed on the left frame inside of outline border, and the coil on the electromagnet is as electromagnetic driven
Make the coil switched, the oblique sliding surface for being matched with inclined-plane on the left of first trapezoid block be provided on the guide holder of the sliding bar,
It is matched with the oblique sliding surface on inclined-plane on the left of second trapezoid block, and is matched with the oblique sliding surface on inclined-plane on the left of second trapezoid block
Lower section offers the fore shaft being open to the right；
The static contact and moving contact are arranged in the second area in left area, and are separately fixed in second area, prolong
The a pair of the connecting pin of the static contact part, moving contact part of stretching out the lower frame of the outline border as the electromagnetic movement switch
Normally opened contact；
After pressing the electromagnetic movement switch, second push rod is moved down, on the left of the trapezoid block of second push rod
Inclined-plane is contacted with the oblique sliding surface of Corresponding matching on the guide holder of the sliding bar, pushes sliding bar mobile to the left side, and described second
The trapezoid block of push rod is snapped down at the fore shaft position below the oblique sliding surface of the guide holder Corresponding matching of the sliding bar, in sliding bar
Under the action of the spring that left end is arranged, side direction resets the sliding bar to the right, makes the fore shaft on the guide holder of the sliding bar
The trapezoid block of second push rod is blocked, meanwhile, the top of second push rod lower end contacts with moving contact and pushes moving contact
It is bonded and is connected on static contact；
When the coil on the electromagnet is conductive, under the action of the electromagnet coil, the iron core of the electromagnet is to the left
Direction is mobile, and side direction is mobile to the left for sliding bar described in synchronous drive, meanwhile, the effect of the reset spring on the second push rod
Under, the fore shaft on the trapezoid block of second push rod and the guide holder of the sliding bar disengages, and second push rod resets upwards,
Separate top and the moving contact of the second push rod lower end, so that moving contact and static contact be made to disconnect；
Alternatively, pressing first push rod, the trapezoid block on first push rod when the coil on the electromagnet is non-conductive
The inclined-plane in left side is contacted with the oblique sliding surface on the guide holder of the sliding bar, and pushing the sliding bar, side direction is mobile to the left, together
When, under the action of the reset spring on the second push rod, leading for the trapezoid block of second push rod and the sliding bar can be made
Fore shaft on seat disengages, and second push rod resets upwards, separates top and the moving contact of the second push rod lower end, to make
Moving contact and static contact disconnect.
5. the control protective unit of electric car charger according to claim 1, it is characterised in that: the current detecting after
Electric switch is mainly made of frame, pedestal, pillar, iron core, coil, iron plate, moving contact, normally closed static contact and normally opened static contact,
The base of frame is fixed with pedestal, is arranged cored on the pedestal, is wound with coil on the iron core, the coil is by 24
The copper wire of the stock 0.3mm circle of coiling 20 arranged side by side is made, and a pillar, the bottom end of the pillar and institute are also vertically provided on the pedestal
It states pedestal to be fixedly connected, top is fixedly connected with the elastic piece for being parallel to the iron core top surface, and the end of the elastic piece is dynamic touching
Head, right above the iron core top surface corresponding to the elastic piece on be provided with one piece of iron plate for being parallel to the iron core top surface, institute
It states and is fixedly connected on frame there are two static contact, the static contact being bonded with the moving contact on the elastic piece is normally closed static contact,
It is normally opened static contact with the static contact that the moving contact on the elastic piece separates；
A pair of of normally-closed contact of the current detecting relay switch is normal on moving contact and the frame on the elastic piece
Close static contact；
When pressing the electromagnetic movement switch, this for making the electromagnetic movement switch is in closed state, the electricity to normally opened contact
When electric current on the coil of stream detection relay switch is greater than the current detecting relay switch preset current value range, institute
The iron core of the coil and the current detecting relay switch of stating current detecting relay switch cooperates together, makes on the elastic piece
Iron plate be pull-in on the top surface of the iron core, moving contact on the elastic piece and institute in the current detecting relay switch
The normally closed static contact stated on frame disconnects, and is closed with the normally opened static contact on the frame；
When pressing the electromagnetic movement switch, this for making the electromagnetic movement switch is in closed state, the electricity to normally opened contact
When electric current on the coil of stream detection relay switch is less than in the preset current value range of current detecting relay switch,
The top surface of iron plate and the iron core on the elastic piece is not attracted, on the elastic piece in the current detecting relay switch
Moving contact re-closed with the normally closed static contact on the frame, on the frame normally opened static contact disconnect, control institute
The input terminal and the protective device input terminal for stating 5V power module A conduct, and the output end of the 5V power module A controls institute
The coil for stating electromagnetic movement switch is conductive, so that this of the electromagnetic movement switch be made to be in disconnection shape again to normally opened contact
State.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920006913.2U CN209479431U (en) | 2019-01-03 | 2019-01-03 | A kind of control protective unit of electric car charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920006913.2U CN209479431U (en) | 2019-01-03 | 2019-01-03 | A kind of control protective unit of electric car charger |
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| Publication Number | Publication Date |
|---|---|
| CN209479431U true CN209479431U (en) | 2019-10-11 |
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ID=68129960
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920006913.2U Expired - Fee Related CN209479431U (en) | 2019-01-03 | 2019-01-03 | A kind of control protective unit of electric car charger |
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| Country | Link |
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| CN (1) | CN209479431U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113022482A (en) * | 2021-03-23 | 2021-06-25 | 济南弗莱德科学仪器有限公司 | Oil product quick-detection vehicle-mounted voltage-stabilizing power supply system |
-
2019
- 2019-01-03 CN CN201920006913.2U patent/CN209479431U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113022482A (en) * | 2021-03-23 | 2021-06-25 | 济南弗莱德科学仪器有限公司 | Oil product quick-detection vehicle-mounted voltage-stabilizing power supply system |
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