CN113872259A - Contactor, direct current distribution box and vehicle that charges - Google Patents
Contactor, direct current distribution box and vehicle that charges Download PDFInfo
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- CN113872259A CN113872259A CN202010617217.2A CN202010617217A CN113872259A CN 113872259 A CN113872259 A CN 113872259A CN 202010617217 A CN202010617217 A CN 202010617217A CN 113872259 A CN113872259 A CN 113872259A
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- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/40—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries adapted for charging from various sources, e.g. AC, DC or multivoltage
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- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a contactor, a direct current charging distribution box and a vehicle, wherein the contactor comprises: the direct current contactor module comprises a direct current contactor, and the direct current contactor is connected with the high-voltage positive electrode; the alternating current contactor module comprises an alternating current contactor, and the alternating current contactor is connected with the high-voltage negative electrode; and the control module is respectively connected with the direct current contactor module and the alternating current contactor module and is used for inputting voltage signals to the direct current contactor module and the alternating current contactor module so as to control the on-off time sequence of the direct current contactor module and the alternating current contactor module. The direct current contactor for the fast charging cathode is replaced by the alternating current contactor, so that the cost brought by adding a direct current charging function to a vehicle is reduced, and meanwhile, the on-off time sequence of the anode contactor and the cathode contactor is controlled by hardware, so that the problem of low stability caused by controlling the on-off time sequence by software is solved, and the stability of a product is improved.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a contactor, a direct-current charging distribution box and a vehicle.
Background
In order to meet the market development trend, more new energy vehicles are simultaneously provided with two charging functions of alternating current and direct current, namely, the direct current charging function is realized by adding a contactor on the basis of the alternating current charging function.
In the related art, a dc contactor is respectively added to a positive electrode and a negative electrode of a dc charging circuit, so as to meet the requirements of national standards, such as meeting the arc extinguishing requirement, and ensure the charging feasibility and the circuit safety, however, the dc contactor has a high cost.
In addition, in order to realize on-off time sequence control of the direct current contactor, a corresponding software control program needs to be added, but the stability of software control is not high, so that the stability of a product is not high.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art.
Therefore, an object of the present invention is to provide a contactor, in which a dc contactor for a fast charging negative electrode is replaced with an ac contactor, so as to reduce the cost of a vehicle when a dc charging function is added, and simultaneously, the on and off timings of the positive and negative contactors are controlled by hardware, so as to avoid the problem of low stability caused by software control on the on and off timings, thereby improving the stability of the product.
To this end, another object of the present invention is to provide a dc charging distribution box.
To this end, a third object of the invention is to propose a vehicle.
To achieve the above object, an embodiment of a first aspect of the present invention discloses a contactor, including: the direct current contactor module comprises a direct current contactor, and the direct current contactor is connected with a high-voltage positive electrode; the alternating current contactor module comprises an alternating current contactor, and the alternating current contactor is connected with a high-voltage negative electrode; and the control module is respectively connected with the direct current contactor module and the alternating current contactor module and is used for inputting voltage signals to the direct current contactor module and the alternating current contactor module so as to control the on-off time sequence of the direct current contactor module and the alternating current contactor module.
According to the contactor provided by the embodiment of the invention, the direct current contactor for the fast charging cathode is replaced by the alternating current contactor, the cost of the alternating current charger is lower than that of the direct current charger, so that the cost brought by adding a direct current charging function to a vehicle is reduced, and meanwhile, the problem of low stability caused by controlling the on-off time sequence by software is avoided by controlling the on-off time sequence of the anode contactor and the cathode contactor by hardware, so that the stability of a product is improved.
In order to achieve the above object, an embodiment of a second aspect of the present invention discloses a dc charging distribution box, which includes the contactor according to the above embodiment of the first aspect of the present invention.
According to the direct-current charging distribution box disclosed by the embodiment of the invention, the direct-current contactor for the fast charging negative electrode is replaced by the alternating-current contactor, the cost of the alternating-current charger is lower than that of the direct-current charger, so that the cost brought by adding a direct-current charging function to a vehicle is reduced, and meanwhile, the problem of low stability caused by controlling the on-off time sequence by software is avoided by controlling the on-off time sequence of the positive electrode contactor and the negative electrode contactor through hardware, so that the stability of a product is improved.
To achieve the above object, an embodiment of a third aspect of the invention discloses a vehicle provided with the dc charging distribution box according to the embodiment of the invention.
According to the vehicle provided by the embodiment of the invention, the direct current contactor for the fast charging cathode is replaced by the alternating current contactor, the cost of the alternating current charger is lower than that of the direct current charger, so that the cost brought by adding a direct current charging function to the vehicle is reduced, and meanwhile, the problem of low stability caused by software control on-off time sequence is avoided by controlling the on-off time sequence of the anode contactor and the cathode contactor through hardware, so that the stability of a product is improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural view of a contactor according to one embodiment of the present invention;
fig. 2 is a schematic diagram of the control principle of the contactor according to one embodiment of the present invention.
Reference numerals: 110-direct current contactor module; 120-ac contactor module; 130-a control module;
a-a first voltage output port; b-a second voltage output port; GND — ground port; k1 — dc contactor; k2 — ac contactor; k3 — low voltage contactor; KT 1-first time relay; KT 2-second time relay; KT1 a-third normally open auxiliary contact; KT2a — a second normally closed auxiliary contact; k3a — first normally open auxiliary contact; k3b — second normally open auxiliary contact; k3c — first normally closed auxiliary contact.
Detailed Description
Embodiments of the present invention will be described in detail below, the embodiments described with reference to the drawings being illustrative, and the embodiments of the present invention will be described in detail below.
A contactor and a vehicle according to an embodiment of the present invention will be described with reference to fig. 1 to 2.
Fig. 1 is a schematic view of a contactor according to an embodiment of the present invention. As shown in fig. 1, the contactor includes: a dc contactor module 110, an ac contactor module 120, and a control module 130.
As shown in fig. 1, the DC contactor module 110 includes a DC contactor K1, the DC contactor K1 is connected to a high voltage positive DC +; the alternating current contactor module 120 comprises an alternating current contactor K2, and an alternating current contactor K2 is connected with a high-voltage negative pole DC-; the control module 130 is connected to the dc contactor module 110 and the ac contactor module 120, respectively, and is configured to input a voltage signal to the dc contactor module 110 and the ac contactor module 120 to control the on and off timings of the dc contactor module 110 and the ac contactor module 120.
Therefore, the contactor replaces the direct current contactor for the fast charging cathode with the alternating current contactor, the cost of the alternating current charger is lower than that of the direct current charger, so that the cost caused by the fact that a direct current charging function is added to a vehicle is reduced, meanwhile, the on-off time sequence of the anode contactor and the cathode contactor is controlled through hardware, the problem that the stability caused by the software control on-off time sequence is not high is solved, and the stability of a product is improved.
In one embodiment of the present invention, as shown in connection with fig. 2, the control module 130 includes a first voltage output port a and a second voltage output port B and a ground port GND.
The first voltage output port a is used for outputting a first voltage signal.
The second voltage output port B is used for outputting a second voltage signal.
In an embodiment of the invention, the voltage value corresponding to the first voltage signal is 12V, and the voltage value corresponding to the second voltage signal may also be 12V.
In one embodiment of the invention, the contactor further comprises a low voltage contactor module (not shown in the figures). As shown in connection with fig. 2, the low-voltage contactor module comprises: the low-voltage contactor K3, the first normally open auxiliary contact K3a, the second normally open auxiliary contact K3b and the first normally closed auxiliary contact K3 c.
One end of the low-voltage contactor K3 is connected with the second voltage output port B; one ends of the first normally open auxiliary contact K3a, the second normally open auxiliary contact K3b and the first normally closed auxiliary contact K3c are all connected to the first voltage output port a.
In one embodiment of the present invention, as shown in connection with fig. 2, the dc contactor module 110 further includes: a first time relay KT1 and a third normally open auxiliary contact KT1 a.
One end of the direct current contactor K1 is connected with the first voltage output port A through a third normally-open auxiliary contact KT1a, and the other end of the direct current contactor K1 is connected with one end of the first time relay KT1 and the other end of the low-voltage contactor K3 respectively; the other end of the first time relay KT1 is connected to the first voltage output port a through a first normally open auxiliary contact K3 a.
In one embodiment of the present invention, as shown in connection with fig. 2, the ac contactor module 120 further includes: a second time relay KT2 and a second normally closed auxiliary contact KT2 a.
One end of an alternating current contactor K2 is connected with a second normally-open auxiliary contact K3b and a second normally-closed auxiliary contact KT2a respectively, and the other end of the alternating current contactor K2 is connected with the other end of a first time relay KT1, the other end of a low-voltage contactor K3, the other end of a second time relay KT2 and the other end of a direct current contactor K1 respectively; one end of the second time relay KT2 is connected to a first normally-closed auxiliary contact K3c and a second normally-closed auxiliary contact KT2a, respectively.
Specifically, the control module 130 is configured to: a first voltage signal is output through a first voltage output port A, and the first voltage signal supplies power to a second time relay KT2 through a first normally-closed auxiliary point K3c, so that the second time relay KT2 connected with a first normally-closed auxiliary contact K3c operates, and a corresponding second normally-closed auxiliary contact KT2a is disconnected due to the fact that the second time relay KT2 operates in an electrified mode; the control module 130 outputs a second voltage signal through the second voltage output port B to supply power to the low-voltage contactor K3, so that the low-voltage contactor K3 is closed, and the low-voltage contactor K3 is closed when being powered on, so that the corresponding first normally-open auxiliary contact K3a and the corresponding second normally-open auxiliary contact K3B are closed, and the corresponding first normally-closed auxiliary contact K3c is opened. Since the first normally-closed auxiliary contact K3c is open, the second time relay KT2 stops operating and its corresponding second normally-closed auxiliary contact KT2a is closed. Because first normally open auxiliary contact K3a and second normally open auxiliary contact K3b are closed, and then supply power to ac contactor K2 and first time relay KT1, make ac contactor K2 actuation, and first time relay KT1 begins timing, first time relay KT1 actuation when timing to first preset time, because first time relay KT1 circular telegram actuation, make its corresponding third normally open auxiliary contact KT1a actuation, thereby supply power to dc relay K1, make dc contactor K1 actuation, thereby accomplish switching on of the high-voltage circuit of contactor. It can be understood that when the ac contactor is used in a dc loop, zero current cut-off needs to be controlled, otherwise, an arc risk and other risks are generated, but when the contactor is turned on, the embodiment of the invention realizes the timing requirements that the ac contactor K2 is closed first and the dc contactor K1 is closed later, so that an arc generated by zero current cut-off cannot occur, and the actuation and cut-off timing of the contactor is realized through hardware, and compared with software control, the stability is higher, and further the stability of a product is improved.
In other words, the conduction process of the high-voltage circuit of the contactor is as follows: the port A is connected with 12V electricity (namely a first voltage signal), the current is connected with a coil of KT2 through a normally closed auxiliary contact K3c of K3, a time relay KT2 is electrified, and a normally closed auxiliary contact KT2a of KT2 is disconnected; when the port B is connected with 12V electricity (namely a second voltage signal), the low-voltage contactor K3 is powered through the second voltage signal, so that the K3 is attracted, because K3 is electrified, normally open auxiliary contacts K3a and K3b of K3 are closed, normally closed auxiliary contact K3c is opened, K3c is opened, KT2 stops working, KT2a is further closed, and the A port forms a path through the closed contacts K3b and K2 and the ground GND, namely, the first voltage signal supplies power to the K2 through the closed K3b, so that the fast-charging negative pole alternating current contactor K2 is closed, at the same time, the first voltage signal supplies power to KT1 through closed K3a, so that the time relay KT1 starts to work, KT1 attracts when the first preset time t1 is reached, and the normally open auxiliary contact KT1a attracts, the power is supplied to K1, so that the quick-charging positive direct-current contactor K1 is attracted to complete the conduction of a high-voltage loop, and the timing sequence requirements that K2 is closed firstly and K1 is closed later are met.
The first preset time t1 is a preset empirical value, the specific value of the first preset time t1 can be selected according to the time requirement, and the value can be obtained by selecting first time relays KT1 of different models and specifications.
Specifically, the control module 130 is further configured to: stopping outputting the second voltage signal to disconnect the low-voltage contactor K3, disconnecting the corresponding first normally-open auxiliary contact K3a and second normally-open auxiliary contact K3b due to the disconnection of the low-voltage contactor K3, disconnecting the first time relay KT1, and disconnecting the corresponding third normally-open auxiliary contact KT1a due to the stop of the first time relay KT1, so that the direct-current contactor K1 is powered off and disconnected; the low-voltage contactor K3 is disconnected, so that the corresponding first normally-closed auxiliary contact K3c is closed, the second time relay KT2 starts timing, and when the timing reaches a second preset time, the second normally-closed auxiliary contact KT2a is disconnected, so that the alternating current contactor K2 is disconnected, the output of the first voltage signal is stopped, and the disconnection of a high-voltage loop of the contactor is completed. It can be understood that when the ac contactor is used in the dc loop, zero current cut-off needs to be controlled, otherwise, the risk of electric arcs and the like may be generated, but when the contactor is disconnected, the embodiment of the present invention implements the timing requirements that the dc contactor K1 is disconnected first and the ac contactor K2 is disconnected later, so that the electric arcs generated by zero current cut-off may not occur, and the actuation and disconnection timing of the contactor is implemented by hardware, which is higher in stability compared with software control, thereby improving the stability of the product.
In other words, the opening process of the high-voltage circuit of the contactor is as follows: the port B stops connecting 12V electricity, the low-voltage contactor K3 is disconnected, meanwhile, the normally-open auxiliary contacts K3a and K3B of the K3 are disconnected, the time relay KT1 and the normally-open auxiliary contact KT1a in the corresponding loop are disconnected, the quick-charging positive pole direct current contactor K1 is disconnected, at the moment, the normally-closed auxiliary contact K3c of the K3 is switched from disconnection to connection, the time relay KT2 starts working, when the second preset time t2 is reached, the normally-closed auxiliary contact KT2a is switched from connection to disconnection, the quick-charging negative pole alternating current contactor K2 is disconnected, finally, the port A stops connecting 12V electricity, the high-voltage loop is disconnected, and the timing requirements that the K1 is disconnected first and the K2 is disconnected later are achieved.
The second preset time t2 is a preset empirical value, the specific value of the second preset time t2 can be selected according to the time requirement, and the value can be obtained by selecting the second time relay KT2 with different models and specifications.
In summary, in the embodiment of the present invention, the closing and opening timings of the dc contactor K1 and the ac contactor K2 in the contactor are controlled by hardware, so that the ac contactor K2 is closed first when operating and opened after the operation is finished, and thus, an arc caused by zero current cut-off when the ac contactor is opened is not generated. In order to meet the arc extinguishing requirement of the existing contactor, the direct current contactor is used as the positive contactor and the negative contactor, and the cost of the direct current contactor is far higher than that of the alternating current contactor.
In addition, the embodiment of the invention controls the attracting and disconnecting time sequence of the direct current contactor K1 and the alternating current contactor K2 through the internal hardware components, so that external software control is not needed, and the problem of poor stability caused by the software control on-off time sequence is solved, namely, the stability of the product is improved. In addition, the hardware control has higher flexibility in use.
In addition, the three ports, namely the first voltage output port A, the second voltage output port B and the grounding port GND are arranged, and the three control lines are connected with the external corresponding voltage signal input port only, so that the complex functions of time sequence control and loop conduction of the contactor can be realized, the operation is simple and convenient, the realization is easy, and the cost is low.
In one embodiment of the present invention, the dc contactor module 110 and the ac contactor module 120 are integrally provided. Namely, two contactor modules are integrated into one contactor module, so that the cost can be effectively reduced, the volume and the weight of the contactor module are reduced, and meanwhile, the installation and the maintenance are convenient. Therefore, the problem that the cost, the volume and the weight of the conventional direct-current charging distribution box are greatly increased can be solved.
According to the contactor provided by the embodiment of the invention, the direct current contactor for the fast charging cathode is replaced by the alternating current contactor, the cost of the alternating current charger is lower than that of the direct current charger, so that the cost brought by adding a direct current charging function to a vehicle is reduced, and meanwhile, the problem of low stability caused by controlling the on-off time sequence by software is avoided by controlling the on-off time sequence of the anode contactor and the cathode contactor by hardware, so that the stability of a product is improved.
A further embodiment of the present invention also provides a dc charging distribution box including the contactor according to any one of the above embodiments of the present invention.
According to the direct-current charging distribution box disclosed by the embodiment of the invention, the direct-current contactor for the fast charging negative electrode is replaced by the alternating-current contactor, the cost of the alternating-current charger is lower than that of the direct-current charger, so that the cost brought by adding a direct-current charging function to a vehicle is reduced, and meanwhile, the problem of low stability caused by controlling the on-off time sequence by software is avoided by controlling the on-off time sequence of the positive electrode contactor and the negative electrode contactor through hardware, so that the stability of a product is improved.
A further embodiment of the present invention also proposes a vehicle provided with the dc charging distribution box described in any one of the above embodiments of the present invention.
According to the vehicle provided by the embodiment of the invention, the direct current contactor for the fast charging cathode is replaced by the alternating current contactor, the cost of the alternating current charger is lower than that of the direct current charger, so that the cost brought by adding a direct current charging function to the vehicle is reduced, and meanwhile, the problem of low stability caused by software control on-off time sequence is avoided by controlling the on-off time sequence of the anode contactor and the cathode contactor through hardware, so that the stability of a product is improved.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A contactor, comprising:
the direct current contactor module comprises a direct current contactor, and the direct current contactor is connected with a high-voltage positive electrode;
the alternating current contactor module comprises an alternating current contactor, and the alternating current contactor is connected with a high-voltage negative electrode;
and the control module is respectively connected with the direct current contactor module and the alternating current contactor module and is used for inputting voltage signals to the direct current contactor module and the alternating current contactor module so as to control the on-off time sequence of the direct current contactor module and the alternating current contactor module.
2. The contactor according to claim 1, wherein said control module comprises:
a first voltage output port for outputting a first voltage signal;
a second voltage output port for outputting a second voltage signal;
a ground port.
3. The contactor as claimed in claim 2, further comprising: a low-voltage contactor module, the low-voltage contactor module comprising: a low-voltage contactor, a first normally open auxiliary contact, a second normally open auxiliary contact and a first normally closed auxiliary contact, wherein,
one end of the low-voltage contactor is connected with the second voltage output port;
and one ends of the first normally open auxiliary contact, the second normally open auxiliary contact and the first normally closed auxiliary contact are connected with the first voltage output port.
4. The contactor as claimed in claim 3, wherein said DC contactor module further comprises: a first time relay and a third normally open auxiliary contact, wherein,
one end of the direct current contactor is connected with the first voltage output port through the third normally-open auxiliary contact, and the other end of the direct current contactor is respectively connected with one end of the first time relay and the other end of the low-voltage contactor;
the other end of the first time relay is connected with the first voltage output port through the first normally-open auxiliary contact.
5. The contactor as claimed in claim 4, wherein said ac contactor module further comprises: a second time relay and a second normally closed auxiliary contact, wherein,
one end of the alternating current contactor is connected with a second normally-open auxiliary contact and a second normally-closed auxiliary contact respectively, and the other end of the alternating current contactor is connected with the other end of the first time relay, the other end of the low-voltage contactor, the other end of the second time relay and the other end of the direct current contactor respectively;
and one end of the second time relay is connected with the first normally closed auxiliary contact and the second normally closed auxiliary contact respectively.
6. The contactor as claimed in claim 5, wherein said control module is configured to:
outputting a first voltage signal through the first voltage output port, so that the second time relay connected with the first normally-closed auxiliary contact is operated, and the second normally-closed auxiliary contact is disconnected;
through second voltage output port exports second voltage signal makes the low pressure contactor actuation first normally open auxiliary contact and second normally open auxiliary contact are closed first normally closed auxiliary contact disconnection, so that the ac contactor actuation, just first time relay begins the timing, when timing to first preset time first time relay actuation makes the actuation of third normally open auxiliary contact, thereby makes the dc contactor actuation accomplishes switching on of the high-pressure loop of contactor.
7. The contactor as claimed in claim 6, wherein said control module is further configured to:
stop outputting second voltage signal makes low voltage contactor disconnection first normally open auxiliary contact and the disconnection of second normally open auxiliary contact first normally closed auxiliary contact is closed, so that first time relay the disconnection of third normally open auxiliary contact makes direct current contactor disconnection, just first normally closed auxiliary contact closure makes second time relay begins to time, when timing to the second when presetting time second normally closed auxiliary contact disconnection, thereby makes alternating current contactor disconnection, and stop outputting first voltage signal accomplishes the disconnection of the high-voltage circuit of contactor.
8. A contactor according to any of claims 1-7, characterized in that the DC contactor module and the AC contactor module are integrally provided.
9. A dc charging distribution box comprising a contactor according to any one of claims 1 to 8.
10. A vehicle characterized by being provided with the direct-current charging distribution box according to claim 9.
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| CN202010617217.2A CN113872259B (en) | 2020-06-30 | 2020-06-30 | Contactor, direct current charging distribution box and vehicle |
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| CN202010617217.2A CN113872259B (en) | 2020-06-30 | 2020-06-30 | Contactor, direct current charging distribution box and vehicle |
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| CN113872259B CN113872259B (en) | 2024-06-18 |
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| WO2020001054A1 (en) * | 2018-06-28 | 2020-01-02 | 深圳光峰科技股份有限公司 | Power supply circuit control module |
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| CN204668986U (en) * | 2015-04-23 | 2015-09-23 | 广州智光电机有限公司 | A kind of battery charging and discharging device |
| CN206524665U (en) * | 2016-11-10 | 2017-09-26 | 深圳市永联科技股份有限公司 | A kind of auxiliary power supply circuit and electric power system applied to charging pile |
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| US20190296541A1 (en) * | 2017-11-08 | 2019-09-26 | Eaton Intelligent Power Limited | System, method, and apparatus for power distribution in an electric mobile application using a combined breaker and relay |
| WO2020001054A1 (en) * | 2018-06-28 | 2020-01-02 | 深圳光峰科技股份有限公司 | Power supply circuit control module |
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