CN105140075A - Battery equalization active temperature protection switch and control method thereof - Google Patents
Battery equalization active temperature protection switch and control method thereof Download PDFInfo
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- CN105140075A CN105140075A CN201510661266.5A CN201510661266A CN105140075A CN 105140075 A CN105140075 A CN 105140075A CN 201510661266 A CN201510661266 A CN 201510661266A CN 105140075 A CN105140075 A CN 105140075A
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- 238000000034 method Methods 0.000 title claims description 13
- 239000002184 metal Substances 0.000 claims abstract description 47
- 229910052751 metal Inorganic materials 0.000 claims abstract description 47
- 230000007246 mechanism Effects 0.000 claims abstract description 26
- 230000001590 oxidative effect Effects 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 3
- 230000006870 function Effects 0.000 abstract description 2
- 239000003990 capacitor Substances 0.000 description 4
- 230000020169 heat generation Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/46—Thermally-sensitive members actuated due to expansion or contraction of a solid
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/64—Contacts
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- H02J7/0026—
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a battery equalization active temperature protection switch comprising upper and lower cover shells which are connected together. The shell of the upper cover shell is provided with first and second connecting points. The upper cover shell is internally provided with a memory metal disconnecting mechanism. The lower cover shell is internally provided with multiple equalization heaters. The internal parts of the upper and lower cover shells are separated by a transversely arranged heat-conducting plate. The deformation part of the memory metal disconnecting mechanism is adhered on the upper surface of the heat-conducting plate. The tail ends of the two contacts of the memory metal disconnecting mechanism are respectively connected with the first and second connecting points. The equalization heaters are uniformly adhered on the lower surface of the heat-conducting plate. Each equalization heater is provided with two lead wires which are led out of the lower cover shell. The switch comprises the memory metal disconnecting mechanism and high-efficiency heat-generating and heat-conducting devices so that the switch can be used as physical relay control and can also be used as a battery discharge equalizer so that simultaneous application of two functions of one switch can be realized, and the switch is particularly suitable for being applied to a battery system formed by large-scale single or module batteries through series and parallel connection.
Description
Technical field
The present invention relates to temperature memory field of switches, be specifically related to a kind of battery balanced active temperature protection switch and control method thereof, this protection switch can be used as the key components and parts of the physics balance protection device in the fields such as super capacitor, lithium battery and module thereof.
Background technology
Temperature memory switch is a kind of very ripe heat management protection switch device; usually used in temperature automatic control; conducting and the cut-out of large contact current can be controlled with variations in temperature; thus play the effect of automatic control and protection; be characterized in that reliability is high, give full play to the physical characteristic of shape memory metal.Existing temperature memory switch is extensive for some conventional household electrical appliance, and as electric heater, electric cooker etc., the direction of its research is passive temperature protection, with low cost.
But temperature memory switch in energy body product as in the systems such as battery pack, super capacitor, electrical network as on-off controller part, there is no case in the whole world.The inconsistent situation of battery core voltage is often propped up owing to there will be during batteries charging, if so when the voltage of wherein certain battery core filled height and disconnect in time continue charging time, the maximum charging voltage value that its voltage will exceed it and can bear, then this battery core just there will be overcharge thus cause battery pack lost efficacy even there is potential safety hazard, if but the overlong time disconnected, then the battery core of all the other low-voltages will affect the use of battery pack because of not being full of electricity.
Accomplish that not only safety is full of electricity but also does not affect use capacity, and the voltage consistency deviation produced between active balance battery core, this just needs to adopt a kind of balancing energy method basically identical after charging complete to the voltage reaching each battery core.If directly use existing traditional resistors to coordinate control circuit to carry out equalization discharge to battery, then because temperature overheating is very large for the impact of battery, even relate to safety, so its ability of equalization is subject to great restriction, cannot effectively be applied to battery balanced in.
Summary of the invention
In order to solve the balanced management of conventional energy body cannot be applied in battery balanced in technical problem; the invention provides a kind of battery balanced active temperature protection switch and control method thereof; overcharging while phenomenon carries out fast effectively initiatively protection to battery routine, the balance protection pattern that balanced energy carries out temperature memory switch initiatively triggering fully can also be gathered.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the present invention is achieved through the following technical solutions:
A kind of battery balanced active temperature protection switch, comprise the upper encloser and lower encioser that link together, two side bodies of described upper encloser are respectively arranged with the first tie point and the second tie point, memory metal disconnecting mechanism is provided with in described upper encloser, be provided with some balanced heaters in described lower encioser, the inside of described upper encloser and described lower encioser is separated by one piece of horizontal heat-conducting plate; The deformation part of described memory metal disconnecting mechanism is attached to the upper surface of described heat-conducting plate, and the end of two contacts of described memory metal disconnecting mechanism is connected with described second tie point with described first tie point respectively; Described in several, balanced heater is attached to the lower surface of described heat-conducting plate equably, and each described balanced heater is provided with two lead-in wires for being connected with battery pack battery core both positive and negative polarity, described lead-in wire is all drawn from described lower encioser.
Further, the inside of described upper encloser and described lower encioser is a closed cavity, and described closed cavity is vacuum environment or non-oxidizing gas environment.
Further, carry out silver-plated to two contacts of described memory metal disconnecting mechanism.
Further, described upper encloser and described lower encioser all adopt heat-barrier material.
Further, described balanced heater is heating resistor, PTC or NTC.
Further, described memory metal disconnecting mechanism is made up of the first normally-closed contact, the first armature contact, insulating knockout pin and temperature memory sheet metal, described temperature memory sheet metal is attached to the upper surface of described heat-conducting plate, the end of described first normally-closed contact is fixedly connected with described first tie point, the end of described first armature contact is by spring and described second tie point active link, the upper end of described insulating knockout pin and the middle part of described first armature contact offset, and deformation place of its lower end and described temperature memory sheet metal offsets; When described temperature memory sheet metal is in the normal state, the front end of described first armature contact contacts with the front end of described first normally-closed contact, when after described temperature memory sheet metal generation deformation, the front end of described first armature contact is separated with the front end of described first normally-closed contact through the drive of described insulating knockout pin.
Further, described memory metal disconnecting mechanism is made up of the second normally-closed contact, the second armature contact and heat-conducting block, described heat-conducting block is attached to the upper surface of described heat-conducting plate, the end of described second normally-closed contact is fixedly connected with described first tie point, the end of described second armature contact and the end of described second tie point and described second tie point fixed-link, described second armature contact is temperature memory metal material, and the bottom of described second armature contact contacts with described heat-conducting block; When described second armature contact is in the normal state, the front end of described second armature contact contacts with the front end of described second normally-closed contact, when after described second armature contact generation deformation, the front end of described second armature contact is separated with the front end of described first normally-closed contact.
A control method for battery balanced active temperature protection switch, comprises the following steps:
Described battery balanced active temperature protection switch is connected in the charging circuit of battery pack by step 1); Be connected with one end of charger by described first tie point, be connected by the other end of described charger with a pole of described battery pack, described second tie point is connected with another pole of described battery pack;
Step 2) two of each described balanced heater lead-in wires are connected with the both positive and negative polarity of corresponding battery core in described battery pack respectively, and a lead-in wire above series connection relay and managing chip wherein;
The distortion temperature values of the described battery balanced active temperature protection switch of step 3) setting; Set the starting resistor value that described managing chip opens described balanced heater;
Step 4) is when described battery pack is charged, and the voltage of described managing chip to each described battery core in described battery pack carries out Real-time Collection;
Step 5) is when the voltage of a certain or a few Zhi Suoshu battery core is raised to starting resistor value, balanced heater described in that belonging to managing chip described in corresponding that will start, carry out equilibrium to described battery pack, the heat that described balanced heater produces is left by described heat-conducting plate;
Step 6) raises when the voltage keeps of a certain or a few Zhi Suoshu battery core, thus cause the temperature of described heat-conducting plate self also to continue to raise, when the temperature of described heat-conducting plate reaches deformation temperature value, there is deformation immediately in the temperature memory metal in described battery balanced active temperature protection switch, two contacts contacted in described battery balanced active temperature protection switch are disconnected, described battery pack stops charging immediately, and now described balanced heater continues to carry out equilibrium to the described battery core overcharged;
After step 7) charging stops, along with equilibrium proceeds, when the voltage often propping up described battery core all returns to below starting resistor value, described managing chip closes described balanced heater, when the temperature of described heat-conducting plate is reduced to after below deformation temperature value, temperature memory form of metal in described battery balanced active temperature protection switch is restored, charging circuit conducting, and described battery pack continues charging; Above-mentioned steps 4-7 goes round and begins again, and moves in circles.
The invention belongs to the Primary Component of storage bodies product new management mode, its standard reached technical grade and more than, possess long-life ability and big current breaking capacity.Mechanism of the present invention adopts closed loop design, and the power consumption making full use of itself, to balance unnecessary energy, so just achieves a kind of intelligent use technology of temperature memory switch.The present invention is while the high voltage breaking capacity giving full play to special memory metal disconnecting mechanism, high energy consumption in conjunction with efficient heat-generation and heat device inputs, effectively effective fast uniform is carried out to the storage bodies such as battery, super capacitor, ensure fail safe and the consistency of storage bodies, promote useful life and the operating efficiency of storage bodies.
Compared with prior art, the invention has the beneficial effects as follows:
1, protection switch of the present invention is different from traditional temperature memory switch; its inside comprises memory metal disconnecting mechanism and efficient heat-generation and heat device; both can be used as physics Control to use, and can be used as again battery discharge equalizer and use, apply while achieving a switch two kinds of functions.
2, because protection switch of the present invention comprises efficient heat-generation and heat device, both can carry out equalization discharge to battery fast, can heat-conducting plate quick heat radiating be passed through again, and be particularly suitable for applying to extensive monomer or the series-parallel battery system of modular battery.
3, the inside of protection switch of the present invention realizes vacuum environment or non-oxidizing gas environment; silver-plated process has also been carried out in the contact of memory metal disconnecting mechanism; protection switch of the present invention is made to have the ability of effective arc extinguishing; improve the high voltage control ability of this protection switch; normality voltage endurance capability reaches more than 800V; can be used as high voltage protective device, to ensure that storage bodies energy constant exports.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of specification, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present invention.The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Structural representation when Fig. 1 is first embodiment of the invention contact;
Structural representation when Fig. 2 is first embodiment of the invention disconnection;
Structural representation when Fig. 3 is second embodiment of the invention contact;
Structural representation when Fig. 4 is second embodiment of the invention contact;
Fig. 5 is the circuit connection diagram of first embodiment of the invention and charger, battery pack;
Fig. 6 is the circuit connection diagram of second embodiment of the invention and charger, battery pack.
Number in the figure illustrates: 1, upper encloser; 2, lower encioser; 3, the first tie point; 4, the second tie point; 5, balanced heater; 6, heat-conducting plate; 7, battery core; 8, go between; 9, the first normally-closed contact; 10, the first armature contact; 11, insulating knockout pin; 12, temperature memory sheet metal; 13, the second normally-closed contact; 14, the second armature contact; 15, heat-conducting block; 16, charger; 17, relay; 18, managing chip; 19, spring.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
embodiment 1
Shown in Fig. 1,2, a kind of battery balanced active temperature protection switch, comprises the upper encloser 1 and lower encioser 2 that link together, and described upper encloser 1 all adopts heat-barrier material with described lower encioser 2, its inside is a closed cavity, and described closed cavity is vacuum environment or non-oxidizing gas environment; Two side bodies of described upper encloser 1 are respectively arranged with the first tie point 3 and the second tie point 4, memory metal disconnecting mechanism is provided with in described upper encloser 1, some balanced heater 5(heating resistors, PTC or NTC is provided with in described lower encioser 2), the inside of described upper encloser 1 and described lower encioser 2 is separated by one piece of horizontal heat-conducting plate 6;
Described memory metal disconnecting mechanism is by the first normally-closed contact 9, first armature contact 10, insulating knockout pin 11 and temperature memory sheet metal 12 form, described first armature contact 10 and described first normally-closed contact 9 all carry out silver-plated process, described temperature memory sheet metal 12 is attached to the upper surface of described heat-conducting plate 6, the end of described first normally-closed contact 9 is fixedly connected with described first tie point 3, the end of described first armature contact 10 is by spring 19 and described second tie point 4 active link, the upper end of described insulating knockout pin 11 and the middle part of described first armature contact 10 offset, deformation place of its lower end and described temperature memory sheet metal 12 offsets, described in several, balanced heater 5 is attached to the lower surface of described heat-conducting plate 6 equably, each described balanced heater 5 is provided with two lead-in wires 8 for being connected with battery pack battery core 7 both positive and negative polarity, and described lead-in wire 8 is all drawn from described lower encioser 2,
When described temperature memory sheet metal 12 is in the normal state, the front end of described first armature contact 10 contacts with the front end of described first normally-closed contact 9, after deformation occurs described temperature memory sheet metal 12, the front end of described first armature contact 10 is separated with the front end of described first normally-closed contact 9 through the drive of described insulating knockout pin 11.
Shown in Figure 5, a kind of control method of battery balanced active temperature protection switch, comprises the following steps:
Described battery balanced active temperature protection switch is connected in the charging circuit of battery pack by step 1); Be connected with one end of charger 16 by described first tie point 3, be connected by the other end of described charger 16 with a pole of described battery pack, described second tie point 4 is connected with another pole of described battery pack;
Step 2) both positive and negative polarity of two of each described balanced heater 5 lead-in wires 8 battery core 7 corresponding to described battery pack is respectively connected, and a lead-in wire 8 is wherein connected a relay 17 and managing chip 18;
The distortion temperature values of the described battery balanced active temperature protection switch of step 3) setting; Set the starting resistor value that described managing chip 18 opens described balanced heater 5;
Step 4) is when described battery pack is charged, and the voltage of described managing chip 18 to the described battery core 7 of each in described battery pack carries out Real-time Collection;
Step 5) is when the voltage of a certain or a few Zhi Suoshu battery core 7 is raised to starting resistor value, balanced heater 5 described in that belonging to managing chip 18 described in corresponding that will start, carry out equilibrium to described battery pack, the heat that described balanced heater 5 produces is left by described heat-conducting plate 6;
Step 6) raises when the voltage keeps of a certain or a few Zhi Suoshu battery core 7, thus cause the temperature of described heat-conducting plate 6 self also to continue to raise, when the temperature of described heat-conducting plate 6 reaches deformation temperature value, there is deformation immediately in described temperature memory sheet metal 12, described insulating knockout pin 11 is made to drive described first armature contact 10 to lift, described first armature contact 10 disconnects with described first normally-closed contact 9, described battery pack stops charging immediately, and the described battery core 7 that now described balanced heater 5 continues overcharging carries out equilibrium;
After step 7) charging stops, along with equilibrium proceeds, when the voltage often propping up described battery core 7 all returns to below starting resistor value, described managing chip 18 closes described balanced heater 5, when the temperature of described heat-conducting plate 6 is reduced to after below deformation temperature value, described temperature memory sheet metal 12 recovery of shape, described first armature contact 10 contacts again with described first normally-closed contact 9, charging circuit conducting, described battery pack continues charging; Above-mentioned steps 4-7 goes round and begins again, and moves in circles.
embodiment 2
Shown in Fig. 3,4, a kind of battery balanced active temperature protection switch, comprises the upper encloser 1 and lower encioser 2 that link together, and described upper encloser 1 all adopts heat-barrier material with described lower encioser 2, its inside is a closed cavity, and described closed cavity is vacuum environment or non-oxidizing gas environment; Two side bodies of described upper encloser 1 are respectively arranged with the first tie point 3 and the second tie point 4, memory metal disconnecting mechanism is provided with in described upper encloser 1, some balanced heater 5(heating resistors, PTC or NTC is provided with in described lower encioser 2), the inside of described upper encloser 1 and described lower encioser 2 is separated by one piece of horizontal heat-conducting plate 6;
Described memory metal disconnecting mechanism is by the second normally-closed contact 13, second armature contact 14 and heat-conducting block 15 form, described second armature contact 14 and described second normally-closed contact 13 all carry out silver-plated process, described heat-conducting block 15 is attached to the upper surface of described heat-conducting plate 6, the end of described second normally-closed contact 13 is fixedly connected with described first tie point 3, the end of described second armature contact 14 and the end of described second tie point and described second tie point 4 fixed-link, described second armature contact 14 is temperature memory metal material, the bottom of described second armature contact 14 contacts with described heat-conducting block 15, described in several, balanced heater 5 is attached to the lower surface of described heat-conducting plate 6 equably, each described balanced heater 5 is provided with two lead-in wires 8 for being connected with battery pack battery core 7 both positive and negative polarity, and described lead-in wire 8 is all drawn from described lower encioser 2,
When described second armature contact 14 is in the normal state, the front end of described second armature contact 14 contacts with the front end of described second normally-closed contact 13, after deformation occurs described second armature contact 14, the front end of described second armature contact 14 is separated with the front end of described second normally-closed contact 13.
Shown in Figure 6, a kind of control method of battery balanced active temperature protection switch, comprises the following steps:
Described battery balanced active temperature protection switch is connected in the charging circuit of battery pack by step 1); Be connected with one end of charger 16 by described first tie point 3, be connected by the other end of described charger 16 with a pole of described battery pack, described second tie point 4 is connected with another pole of described battery pack;
Step 2) both positive and negative polarity of two of each described balanced heater 5 lead-in wires 8 battery core 7 corresponding to described battery pack is respectively connected, and a lead-in wire 8 is wherein connected a relay 17 and managing chip 18;
The distortion temperature values of the described battery balanced active temperature protection switch of step 3) setting; Set the starting resistor value that described managing chip 18 opens described balanced heater 5;
Step 4) is when described battery pack is charged, and the voltage of described managing chip 18 to the described battery core 7 of each in described battery pack carries out Real-time Collection;
Step 5) is when the voltage of a certain or a few Zhi Suoshu battery core 7 is raised to starting resistor value, balanced heater 5 described in that belonging to managing chip 18 described in corresponding that will start, carry out equilibrium to described battery pack, the heat that described balanced heater 5 produces is left by described heat-conducting plate 6;
Step 6) raises when the voltage keeps of a certain or a few Zhi Suoshu battery core 7, thus cause the temperature of described heat-conducting plate 6 self also to continue to raise, when the temperature of described heat-conducting plate 6 reaches deformation temperature value, there is deformation immediately in described second armature contact 14, its front portion is bent downwardly, described second armature contact 14 is disconnected with described second normally-closed contact 13, and described battery pack stops charging immediately, and the described battery core 7 that now described balanced heater 5 continues overcharging carries out equilibrium;
After step 7) charging stops, along with equilibrium proceeds, when the voltage often propping up described battery core 7 all returns to below starting resistor value, described managing chip 18 closes described balanced heater 5, when the temperature of described heat-conducting plate 6 is reduced to after below deformation temperature value, described second armature contact 14 recovery of shape, described second armature contact 14 contacts again with described second normally-closed contact 13, charging circuit conducting, described battery pack continues charging; Above-mentioned steps 4-7 goes round and begins again, and moves in circles.
The invention belongs to the Primary Component of storage bodies product new management mode, its standard reached technical grade and more than, possess long-life ability and big current breaking capacity.Mechanism of the present invention adopts closed loop design, and the power consumption making full use of itself, to balance unnecessary energy, so just achieves a kind of intelligent use technology of temperature memory switch.The present invention is while the high voltage breaking capacity giving full play to special memory metal disconnecting mechanism, high energy consumption in conjunction with efficient heat-generation and heat device inputs, effectively effective fast uniform is carried out to the storage bodies such as battery, super capacitor, ensure fail safe and the consistency of storage bodies, promote useful life and the operating efficiency of storage bodies.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a battery balanced active temperature protection switch, it is characterized in that: comprise the upper encloser (1) and lower encioser (2) that link together, two side bodies of described upper encloser (1) are respectively arranged with the first tie point (3) and the second tie point (4), described upper encloser is provided with memory metal disconnecting mechanism in (1), be provided with some balanced heaters (5) in described lower encioser (2), the inside of described upper encloser (1) and described lower encioser (2) is separated by one piece of horizontal heat-conducting plate (6); The deformation part of described memory metal disconnecting mechanism is attached to the upper surface of described heat-conducting plate (6), and the end of two contacts of described memory metal disconnecting mechanism is connected with described second tie point (4) with described first tie point (3) respectively; Described in several, balanced heater (5) is attached to the lower surface of described heat-conducting plate (6) equably, each described balanced heater (5) is provided with two lead-in wires (8) for being connected with battery pack battery core (7) both positive and negative polarity, described lead-in wire (8) is all drawn from described lower encioser (2).
2. battery balanced active temperature protection switch according to claim 1, is characterized in that: described upper encloser (1) is a closed cavity with the inside of described lower encioser (2), and described closed cavity is vacuum environment or non-oxidizing gas environment.
3. battery balanced active temperature protection switch according to claim 1, is characterized in that: carry out silver-plated to two contacts of described memory metal disconnecting mechanism.
4. battery balanced active temperature protection switch according to claim 1, is characterized in that: described upper encloser (1) and described lower encioser (2) all adopt heat-barrier material.
5. battery balanced active temperature protection switch according to claim 1, is characterized in that: described balanced heater (5) is heating resistor, PTC or NTC.
6. battery balanced active temperature protection switch according to claim 1, it is characterized in that: described memory metal disconnecting mechanism is by the first normally-closed contact (9), first armature contact (10), insulating knockout pin (11) and temperature memory sheet metal (12) composition, described temperature memory sheet metal (12) is attached to the upper surface of described heat-conducting plate (6), the end of described first normally-closed contact (9) is fixedly connected with described first tie point (3), the end of described first armature contact (10) is by spring (19) and described second tie point (4) active link, the upper end of described insulating knockout pin (11) and the middle part of described first armature contact (10) offset, deformation place of its lower end and described temperature memory sheet metal (12) offsets, when described temperature memory sheet metal (12) is in the normal state, the front end of described first armature contact (10) contacts with the front end of described first normally-closed contact (9), after deformation occurs described temperature memory sheet metal (12), the front end of described first armature contact (10) is separated with the front end of described first normally-closed contact (9) through the drive of described insulating knockout pin (11).
7. battery balanced active temperature protection switch according to claim 1, it is characterized in that: described memory metal disconnecting mechanism is by the second normally-closed contact (13), second armature contact (14) and heat-conducting block (15) composition, described heat-conducting block (15) is attached to the upper surface of described heat-conducting plate (6), the end of described second normally-closed contact (13) is fixedly connected with described first tie point (3), the end of described second armature contact (14) and the end of described second tie point and described second tie point (4) fixed-link, described second armature contact (14) is temperature memory metal material, the bottom of described second armature contact (14) contacts with described heat-conducting block (15), when described second armature contact (14) is in the normal state, the front end of described second armature contact (14) contacts with the front end of described second normally-closed contact (13), after deformation occurs described second armature contact (14), the front end of described second armature contact (14) is separated with the front end of described first normally-closed contact (9).
8. adopt a control method for battery balanced active temperature protection switch as claimed in claim 1, it is characterized in that, comprise the following steps:
Described battery balanced active temperature protection switch is connected in the charging circuit of battery pack by step 1); Described first tie point (3) be connected with one end of charger (16), be connected by the other end of described charger (16) with a pole of described battery pack, described second tie point (4) is connected with another pole of described battery pack;
Step 2) two lead-in wires (8) of each described balanced heater (5) are connected with the both positive and negative polarity of corresponding battery core (7) in described battery pack respectively, and a lead-in wire (8) above series connection relay (17) and managing chip (18) wherein;
The distortion temperature values of the described battery balanced active temperature protection switch of step 3) setting; Set the starting resistor value that described managing chip (18) opens described balanced heater (5);
Step 4) is when described battery pack is charged, and the voltage of described managing chip (18) to each described battery core (7) in described battery pack carries out Real-time Collection;
Step 5) is when the voltage of a certain or a few Zhi Suoshu battery core (7) is raised to starting resistor value, balanced heater (5) described in that belonging to managing chip (18) described in corresponding that will start, carry out equilibrium to described battery pack, the heat that described balanced heater (5) produces is left by described heat-conducting plate (6);
Step 6) raises when the voltage keeps of a certain or a few Zhi Suoshu battery core (7), thus cause the temperature of described heat-conducting plate (6) self also to continue to raise, when the temperature of described heat-conducting plate (6) reaches deformation temperature value, there is deformation immediately in the temperature memory metal in described battery balanced active temperature protection switch, two contacts contacted in described battery balanced active temperature protection switch are disconnected, described battery pack stops charging immediately, and now the continuation of described balanced heater (5) carries out equilibrium to the described battery core (7) overcharged;
After step 7) charging stops, along with equilibrium proceeds, when the voltage often propping up described battery core (7) all returns to below starting resistor value, described managing chip (18) closes described balanced heater (5), when the temperature of described heat-conducting plate (6) is reduced to after below deformation temperature value, temperature memory form of metal in described battery balanced active temperature protection switch is restored, charging circuit conducting, and described battery pack continues charging; Above-mentioned steps 4-7 goes round and begins again, and moves in circles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510661266.5A CN105140075A (en) | 2015-10-15 | 2015-10-15 | Battery equalization active temperature protection switch and control method thereof |
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| CN201510661266.5A CN105140075A (en) | 2015-10-15 | 2015-10-15 | Battery equalization active temperature protection switch and control method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105551891A (en) * | 2015-12-25 | 2016-05-04 | 重庆京藏电力储配技术开发有限公司 | Battery energy balance relay and control method therefor |
| CN108199201A (en) * | 2017-12-28 | 2018-06-22 | 佛山市南海惠家五金制品有限公司 | Robot power supply waterproof connected structure and insertion method |
| CN109289136A (en) * | 2018-08-31 | 2019-02-01 | 江苏维科轨交科技有限公司 | A kind of rail traffic lithium battery automatic fire extinguishing system |
| CN110137753A (en) * | 2019-05-27 | 2019-08-16 | 汪光柱 | A kind of charging gun for the charging current that is self-regulated |
| CN115084793A (en) * | 2021-03-11 | 2022-09-20 | 宁德新能源科技有限公司 | Protection circuit, battery, group battery and electron device of electric core |
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| CN105551891A (en) * | 2015-12-25 | 2016-05-04 | 重庆京藏电力储配技术开发有限公司 | Battery energy balance relay and control method therefor |
| US11842868B2 (en) * | 2017-05-01 | 2023-12-12 | American Lithium Energy Corporation | Negative thermal expansion current interrupter |
| CN108199201A (en) * | 2017-12-28 | 2018-06-22 | 佛山市南海惠家五金制品有限公司 | Robot power supply waterproof connected structure and insertion method |
| CN109289136A (en) * | 2018-08-31 | 2019-02-01 | 江苏维科轨交科技有限公司 | A kind of rail traffic lithium battery automatic fire extinguishing system |
| CN110137753A (en) * | 2019-05-27 | 2019-08-16 | 汪光柱 | A kind of charging gun for the charging current that is self-regulated |
| CN110137753B (en) * | 2019-05-27 | 2020-12-22 | 浙江欧托电气有限公司 | Charging gun capable of automatically adjusting charging current |
| CN115084793A (en) * | 2021-03-11 | 2022-09-20 | 宁德新能源科技有限公司 | Protection circuit, battery, group battery and electron device of electric core |
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