CN108400061B - High-voltage DC on-off device - Google Patents
High-voltage DC on-off device Download PDFInfo
- Publication number
- CN108400061B CN108400061B CN201810455986.XA CN201810455986A CN108400061B CN 108400061 B CN108400061 B CN 108400061B CN 201810455986 A CN201810455986 A CN 201810455986A CN 108400061 B CN108400061 B CN 108400061B
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- Prior art keywords
- contact
- chamber
- fixed
- bridge
- contact bridge
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 18
- 229920003023 plastic Polymers 0.000 claims abstract description 9
- 239000004033 plastic Substances 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 6
- 230000003068 static effect Effects 0.000 claims description 9
- ONNCPBRWFSKDMQ-UHFFFAOYSA-N 2,3',5-trichlorobiphenyl Chemical compound ClC1=CC=CC(C=2C(=CC=C(Cl)C=2)Cl)=C1 ONNCPBRWFSKDMQ-UHFFFAOYSA-N 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 239000000463 material Substances 0.000 description 5
- 239000004020 conductor Substances 0.000 description 3
- 238000010891 electric arc Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/023—Details concerning sealing, e.g. sealing casing with resin
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
- H01H50/641—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rectilinear movement
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses a high-voltage direct current on-off device, which comprises an outer shell, a contact chamber and an electromagnetic conversion chamber, wherein the contact chamber and the electromagnetic conversion chamber are arranged in the outer shell, a push rod in the electromagnetic conversion chamber moves up and down to drive a contact bridge in the contact chamber to move up and down so as to enable a movable contact to be connected with a fixed contact or separated from the fixed contact, the contact chamber is a closed space formed by a guide bottom plate and an inner shell covered above the guide bottom plate in a plugging mode, the guide bottom plate and the inner shell are both made of arc-resistant plastics, and the electromagnetic conversion chamber is a metal frame surrounded by a shielding bracket and a shielding upper plate. The invention has simple structure, good arc resistance and long service life.
Description
Technical Field
The invention belongs to the technical field of electric power, and particularly relates to a high-voltage direct-current on-off device.
Background
The hvdc switch is used to switch high voltage power loads, such as the connection between the battery box and the PDU of a new energy vehicle. This type of switch comprises a contact chamber, which is highly required in terms of possible operating temperatures, permissible internal pressures, electrical insulation capacity and arc resistance.
Traditionally, this type of contact chamber is manufactured from common plastic materials, resulting in advantages in terms of production and assembly. For example, the elastic properties of plastic materials may be used to create a press-in or other elastic connection. However, the thermal resistance and electrical insulation capabilities of plastic materials are limited. Flame impingement by the arc, which occurs when the electrical load is interrupted, can lead to burning (oxidation) of the surface of the plastic material, greatly reducing the insulation resistance.
Alternative options in the prior art include manufacturing the contact chamber from a ceramic material. For example, as disclosed in chinese patent application CN102074387a, this type of material has a very good resistance to arc flame impingement. However, ceramic materials have only a low elasticity, which means that a low cost press-in or snap-in connection cannot be used, which makes it difficult to press the contact chamber, and the tightness and flatness are poor; and the main thing is that the internal structure of the high-voltage direct current on-off device in the prior art is unreasonable.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a high-voltage direct-current on-off device with a simple structure.
The aim of the invention is achieved by the following technical scheme:
the utility model provides a high-voltage direct current on-off device, includes shell and contact chamber and the electromagnetic conversion room of setting in it, contact chamber is arranged first contact member and second contact member in, first contact member and second contact member shape are the same and all include the fixed contact that sets up in the contact chamber and set up outside the contact chamber, still including contact bridge and the movable contact that sets up in contact bridge left and right sides in the contact chamber, a push rod reciprocates can drive the contact bridge reciprocates and then makes movable contact and fixed contact joint switch on or separate and disconnect, the contact chamber is for adopting the form of inserting by guiding bottom plate and cover to establish the inner shell above it and form a confined space, guiding bottom plate and inner shell are made by arc resistant plastics, the electromagnetic conversion room is the metal frame who forms by shielding support and shielding upper plate enclose to establish, is provided with coil support and coil around in its periphery in it, the movable armature movably arranges inside the coil support, the tip of the push rod of contact chamber is connected rigidly to on the armature, the coil support is interior to be provided with the stationary armature and stretches into in the contact chamber.
Preferably, the inner shell of the contact chamber comprises two symmetrically arranged magnet baffles, and arc extinguishing magnets are fixed on the magnet baffles.
Preferably, the magnet baffle is fixed on the inner shell through a buckle structure.
Preferably, a limiting snap spring is fixed at the top end of the push rod, a horizontal limiting frame is formed by the limiting snap spring to limit the contact bridge to horizontally move, and an axial spring is further arranged in the limiting snap spring to limit the contact bridge to axially move so that the contact bridge and the push rod are relatively fixed.
Preferably, the limiting snap spring is a U-shaped reed and comprises a bottom and two side surfaces, the push rod is fixed on the bottom, and the two side surfaces are respectively provided with the horizontal limiting frame; the contact bridge is a flat plate, the movable contact is arranged on the upper surface of the contact bridge, two bosses extend from the middle section of the contact bridge, and the width of each boss is equal to that of the horizontal limiting frame.
Preferably, one end of the axial spring abuts against the inner surface of the bottom of the limit clamp spring, the other end abuts against the lower surface of the contact bridge, and the elastic force of the limit clamp spring drives the upper surface of the contact bridge to be always clung to the flanging of the side surface of the limit clamp spring, so that the contact bridge and the limit clamp spring are relatively fixed; the guide bottom plate is provided with inwards extending ribs which are used for limiting the two side faces of the limiting snap springs in the horizontal direction.
Preferably, the upper surface of the movable contact facing the fixed contact is rectangular.
Preferably, a micro switch is further arranged in the contact chamber, the micro switch is fixed through a bracket, and the protrusion on the upper surface of the contact bridge touches the micro switch through an elastic block of the bracket.
Preferably, a PCB circuit board is disposed in the electromagnetic conversion chamber, and the PCB circuit board is vertically disposed in the electromagnetic conversion chamber and fixed on a PCB baffle, and a hook is disposed on the outer side of the PCB baffle, and hooks the opening of the housing.
Preferably, a circuit outlet is formed in the side wall of the shell.
The beneficial effects of the invention are mainly as follows:
1. the limiting clamp spring is used for completely limiting the contact bridge in the horizontal direction, so that the limiting clamp spring and the contact bridge are completely fixed in the horizontal direction, and the problem of horizontal movement of the contact bridge caused by aging and failure of the spring is avoided;
2. the upper surface of the movable contact, which faces the fixed contact, is rectangular, so that the conventional thinking of conventional design is changed;
3. the safety of the high-voltage direct-current on-off device is higher due to the arrangement of the micro switch;
4. the lateral outgoing line of the circuit can be used for crimping various types of terminals at the end part of the circuit so as to improve the universality of connection with other control equipment;
5. the contact chamber is made of arc-resistant plastic, and can be injection molded while being arc-resistant, so that the consistency and the dimensional stability of the product are ensured. .
Drawings
The technical scheme of the invention is further described below with reference to the accompanying drawings:
fig. 1: the invention relates to a perspective schematic diagram of a high-voltage direct-current on-off device;
fig. 2: the invention relates to a front cross-sectional view of a high-voltage direct-current on-off device;
fig. 3: the explosion schematic diagram of the high-voltage direct-current on-off device is shown in the invention;
fig. 4: an enlarged view of section a in fig. 3.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. The embodiments are not limited to the present invention, and structural, methodological, or functional modifications of the invention from those skilled in the art are included within the scope of the invention.
As shown in fig. 1 to 3, the present invention discloses a high voltage dc on-off device, comprising a housing 400, a contact chamber 100 and an electromagnetic conversion chamber 500 disposed therein, wherein a first contact member 200 and a second contact member 300 are disposed in the contact chamber 100 as in the prior art, and the first contact member 200 and the second contact member 300 have the same shape and each comprise a fixed contact 1 disposed in the contact chamber 100 and a lead-out terminal 2 disposed outside the contact chamber 100.
The first contact member 200 and the second contact member 300 are guided into the contact chamber 100 through two apertures. The first contact member 200 and the second contact member 300 comprise an electrically conductive material, such as a metal, and are arranged to be connected to electrical contacts of an electrical load, such as an electrical machine, to be switched.
The high voltage dc breaker of the present invention is configured to open and close the electrical connection between the first contact member 200 and the second contact member 300. Thus, the invention can be used, for example, to switch the power supply of an electric motor. When its contacts are closed, for example when the voltage exceeds 850V, a high current exceeding 100A may flow between the first contact member 200 and the second contact member 300.
The housing 400 is further provided with an electromagnetic conversion chamber including a coil holder 14 and a coil (not shown) wound around the outer periphery thereof, and the winding wire of the coil holder 14 can be loaded with a voltage from the outside to generate a magnetic field in the coil holder 14. The coil support 14 is arranged in a space surrounded by the shielding support 15 and the shielding upper plate 16, and the shielding support 15 and the shielding upper plate 16 are connected in a clamping mode and are made of metal. A bracket insulating sheet 17 is also arranged between the coil bracket 14 and the shielding bracket 15.
The moving armature 18 is movably arranged inside the coil support 14. The moving armature 18 comprises a central bore through which a push rod 5 is guided. The end of the push rod 5 remote from the contact chamber 100 is rigidly connected to the moving armature 18 so that both can move or stop simultaneously. The other end of the push rod 5 passes through the stationary armature 19 and protrudes into the contact chamber 100. The magnet baffle 23 is fixed on the inner shell 21 by a snap-in structure 25.
The coil bracket 14 is also internally provided with a static armature 19, and the static armature 19 has the function of generating a magnetic field when the coil is electrified, so that the static armature 19 is quickly magnetized to generate attraction force to attract the movable armature 18 to move towards the static armature 19, thereby completing the step of attracting the contacts. Of course, as in the prior art, a return spring (not shown) is also arranged between the static armature 19 and the movable armature 18, and when the coil is powered off and the static armature 19 loses magnetic force, the spring drives the movable armature 18 to return, so that the movable contact 4 is separated from the fixed contact 1.
Above the electromagnetic conversion chamber is a contact chamber 100, and the upper end of the pushing rod 5 extends into the contact chamber 100. The contact chamber 100 includes a guiding bottom plate 20 disposed above the shielding upper plate 16 and an inner housing 21 covering the guiding bottom plate, and the bottom plate 20 and the inner housing 21 form a closed space in a plugging manner, namely the contact chamber 100. The base plate 20 and the inner shell 21 are both made of an arc resistant plastic, such as dupont LCP. The inner shell 21 of the contact chamber 100 comprises two symmetrically arranged magnet baffles 23, and arc extinguishing magnets 24 are fixed on the magnet baffles 23.
The contact chamber 100 includes a contact bridge 3 and movable contacts 4 disposed at left and right ends of the contact bridge, and the contact bridge 3 is movably disposed in the contact chamber 100. The contact bridge 3 comprises an electrically conductive material, for example a metal. The contact bridge 3 may be, for example, in the shape of a planar cube. The contact bridge 3 is movably arranged such that it can simultaneously contact the first contact member 200 and the second contact member 300 in order to create an electrical connection between the first contact member 200 and the second contact member 300. The contact bridge 3 is also movable away from the first contact member 200 and the second contact member 300 to break the electrical connection between the first contact member 200 and the second contact member 300.
The push rod 5 moves up and down to drive the contact bridge 3 to move up and down so as to enable the movable contact 4 to be connected with the fixed contact 1 or disconnected from the fixed contact. Specifically, a limiting clamp spring 6 is fixed at the top end of the push rod 5, and various fixing modes of the push rod 5 and the limiting clamp spring 6 are riveting or threading and the like. The limiting clamp spring 6 forms a horizontal limiting frame 7 to limit the contact bridge 3 to move horizontally, and an axial spring 8 is further arranged in the limiting clamp spring 6 to limit the contact bridge 3 to move axially.
As shown in fig. 4, the limit clamp spring 6 is a U-shaped spring and includes a bottom 61 and two side surfaces 62, the push rod 5 is fixed on the bottom 61, and the two side surfaces 62 are respectively provided with the horizontal limit frame 7. The contact bridge 3 is a flat plate, the movable contact 4 is separately arranged on the upper surface of the flat plate, two bosses 9 extend from the middle section of the contact bridge 3, and the width of each boss 9 is equal to that of the horizontal limiting frame 7. Thus, when the boss 9 is clamped into the horizontal limiting frame 7, horizontal movement cannot be generated between the boss and the horizontal limiting frame.
One end of the axial spring 8 abuts against the inner surface of the bottom 61 of the limit clamp spring 6, the other end abuts against the lower surface of the contact bridge 3, the elastic force of the limit clamp spring 6 drives the upper surface of the contact bridge 3 to be always clung to the flanging of the side surface 62 of the limit clamp spring 6, so that the contact bridge 3 and the limit clamp spring 6 are relatively fixed, and therefore the contact bridge 3 and the push rod 5 are relatively fixed.
When the push rod 5 drives the limit clamp spring 6 and the contact bridge 3 to move up and down, the ribs 22 extending inwards of the bottom plate 20 can also limit the two side surfaces 62 of the limit clamp spring 6 in the horizontal direction.
The invention changes the conventional design of the prior art, the push rod 5 is only fixed with the limit clamp spring 6, and the limit clamp spring 6 limits the contact bridge 3 in the horizontal direction through the horizontal limit frame 7; and the ribs 22 extending inwards of the bottom plate 20 can also limit the two side surfaces 62 of the limit clamping spring 6 in the horizontal direction. Under the structure, the limit clamp spring is ensured to completely limit the contact bridge in the horizontal direction, so that the limit clamp spring and the contact bridge are completely fixed in the horizontal direction, and the problem of horizontal movement of the contact bridge caused by aging and failure of the spring is avoided.
The axial spring 8 arranged on the horizontal limiting frame 7 limits the contact bridge 3 to axially move, and further when the movable contact 4 contacts the fixed contact 1, elastic compensation buffering can be performed, so that arc discharge caused by rebound of the two can be prevented. Moreover, as the lower surface of the contact bridge 3 is only contacted by the axial spring 8, the left-right deflection amount of the contact bridge 3 is larger than that of the prior art, and even if the heights of the pre-buried stationary contacts are inconsistent, the contact conduction can be well realized.
In the invention, the upper surface of the movable contact 4 facing the fixed contact 1 is rectangular, so that the conventional thinking of conventional design is changed into that the contact area of the circular movable contact 4 is larger, and the phenomenon of arc discharge can be generated when the movable contact 4 is electrified and separated from the fixed contact 1, and the phenomenon can easily burn the contact surface of the contact. When the rectangular movable contact 4 is adopted, even if arc discharge occurs, only four top corners of the rectangular contact can be burnt out, the contact surface of the contact cannot be influenced, and the service life of the contact can be prolonged. Because a large amount of charges can be accumulated on the surface when the movable contact and the static contact are electrified and opened or closed under the action of a strong electric field, the density of the charges is related to the surface shape of the conductor, the charge density is close to zero at a concave part, the charge density is small at a gentle part, and the density of a sharp corner part is maximum. When the charge density reaches a certain value, the electric field generated by the charge is so large that the air is broken down to form a discharge phenomenon. In order to achieve better effect, both the movable contact 4 and the fixed contact 1 may adopt rectangular structures, namely: the charge is concentrated at the sharp corner of the rectangle.
In the present invention, a micro switch 10 is further disposed in the contact chamber 100, the micro switch 10 is fixed by a bracket 11, and the protrusion 12 on the upper surface of the contact bridge 3 touches the micro switch 10 by an elastic block 13 of the bracket 11. When the movable contact 4 is contacted and combined with the fixed contact 1, the micro switch 10 is also triggered by the elastic block 13 of the bracket 11 to be opened to send out a signal, so that the detection function of the micro switch ensures that the high-voltage direct-current on-off device has higher safety and ensures that the movable contact 4 is contacted and combined with the fixed contact 1 instead of being separated from each other to generate an arcing phenomenon.
The electromagnetic conversion chamber 500 is internally provided with a PCB circuit board 26, the PCB circuit board 26 is vertically arranged in the electromagnetic conversion chamber 500 and is fixed on a PCB baffle 27, the outer side of the PCB baffle 27 is provided with a hook 28, and the hook 28 hooks the opening 29 of the shell 400. The side wall of the housing 400 is provided with a circuit outlet 30. The lateral wire outlet structure of the circuit can be directly welded on a control circuit board of a PCB, and terminals of various types can be crimped at the end parts of the wires to improve the universality.
It should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined as appropriate to form other embodiments that will be understood by those skilled in the art.
The above list of detailed descriptions is only specific to practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the spirit of the present invention should be included in the scope of the present invention.
Claims (7)
1. The utility model provides a high-voltage direct current on-off device, includes shell (400) and sets up contact chamber (100) and electromagnetic conversion room (500) in it, first contact component (200) and second contact component (300) have been arranged in contact chamber (100), first contact component (200) and second contact component (300) shape are the same and all include fixed contact (1) and the leading-out terminal (2) of setting outside contact chamber (100) in contact chamber (100), still including contact bridge (3) and set up in contact bridge left and right sides movable contact (4) at the both ends in contact chamber (100), a push rod (5) reciprocates and can drive contact bridge (3) reciprocate and then make movable contact (4) and fixed contact (1) joint switch on or separation disconnection, its characterized in that: the contact chamber (100) is a closed space formed by a guide bottom plate (20) and an inner shell (21) covered above the guide bottom plate and the inner shell (21) in a plugging mode, the guide bottom plate (20) and the inner shell (21) are both made of arc-resistant plastics, the electromagnetic conversion chamber (500) is a metal frame formed by enclosing a shielding bracket (15) and a shielding upper plate (16), a coil bracket (14) and a coil wound around the periphery thereof are arranged in the electromagnetic conversion chamber, a movable armature (18) is movably arranged in the coil bracket (14), the end part of a push rod (5) far away from the contact chamber (100) is rigidly connected to the movable armature (18), a static armature (19) is fixedly arranged in the coil bracket (14), one end of the push rod (5) penetrates through the static armature (19) and stretches into the contact chamber (100), a limit clamp spring (6) is fixed at the top end of the push rod (5), a horizontal limit clamp spring (6) forms a horizontal limit frame (7) to limit the contact bridge (3), the two horizontal clamp springs (62) are respectively arranged on the two sides of the two horizontal limit springs (61), and the two limit springs (61) are respectively fixed on the two sides (62; the contact bridge (3) is a flat plate, the movable contact (4) is arranged on the upper surface of the movable contact, two bosses (9) extend from the middle section of the contact bridge (3), the width of each boss (9) is equal to that of the horizontal limiting frame (7), one end of the axial spring (8) abuts against the inner surface of the bottom (61) of the limiting snap spring (6), the other end abuts against the lower surface of the contact bridge (3), and the elastic force of the limiting snap spring (6) drives the upper surface of the contact bridge (3) to be always clung to the flanging of the side face (62) of the limiting snap spring (6), so that the contact bridge (3) and the limiting snap spring (6) are relatively fixed; the guide bottom plate (20) is provided with inwards extending ribs (22) which are used for limiting two side faces (62) of the limiting snap spring (6) in the horizontal direction, and the upper surface of the movable contact (4) facing the fixed contact (1) is rectangular.
2. The high voltage dc on-off device according to claim 1, wherein: the inner shell (21) of the contact chamber (100) comprises two magnet baffles (23) which are symmetrically arranged, and arc extinguishing magnets (24) are fixed on the magnet baffles (23).
3. The high voltage dc on-off device according to claim 2, wherein: the magnet baffle (23) is fixed on the inner shell (21) through a buckling structure (25).
4. A high voltage dc breaker according to any one of claims 1 to 3, characterized in that: an axial spring (8) is further arranged in the limit clamp spring (6) to limit the contact bridge (3) to move axially, so that the contact bridge (3) and the pushing rod (5) are fixed relatively.
5. The high voltage dc on-off device according to claim 1, wherein: a micro switch (10) is further arranged in the contact chamber (100), the micro switch (10) is fixed through a bracket (11), and a protrusion (12) on the upper surface of the contact bridge (3) touches the micro switch (10) through an elastic block (13) of the bracket (11).
6. The high voltage dc on-off device according to claim 1, wherein: the electromagnetic conversion chamber (500) is internally provided with a PCB (printed circuit board) 26, the PCB 26 is vertically arranged in the electromagnetic conversion chamber (500) and is fixed on a PCB baffle plate 27, the outer side of the PCB baffle plate 27 is provided with a hook 28, and the hook 28 hooks the opening 29 of the shell 400.
7. The high voltage dc on-off device according to claim 6, wherein: the side wall of the shell (400) is provided with a circuit outlet (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810455986.XA CN108400061B (en) | 2018-05-14 | 2018-05-14 | High-voltage DC on-off device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810455986.XA CN108400061B (en) | 2018-05-14 | 2018-05-14 | High-voltage DC on-off device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108400061A CN108400061A (en) | 2018-08-14 |
| CN108400061B true CN108400061B (en) | 2023-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810455986.XA Active CN108400061B (en) | 2018-05-14 | 2018-05-14 | High-voltage DC on-off device |
Country Status (1)
| Country | Link |
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| CN (1) | CN108400061B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7286931B2 (en) * | 2018-09-07 | 2023-06-06 | オムロン株式会社 | electromagnetic relay |
| CN110223883A (en) | 2019-07-09 | 2019-09-10 | 东莞市中汇瑞德电子股份有限公司 | The pushing structure of high voltage direct current relay |
| CN211980527U (en) | 2020-05-29 | 2020-11-20 | 比亚迪股份有限公司 | Relay with a movable contact |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016181401A (en) * | 2015-03-24 | 2016-10-13 | 三菱自動車工業株式会社 | Contactor and discharge circuit |
| JP2017050274A (en) * | 2015-09-04 | 2017-03-09 | オムロン株式会社 | Contact switchgear |
| CN107146741A (en) * | 2017-06-09 | 2017-09-08 | 深圳市品川新能源技术有限公司 | A kind of high-voltage DC contactor |
-
2018
- 2018-05-14 CN CN201810455986.XA patent/CN108400061B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016181401A (en) * | 2015-03-24 | 2016-10-13 | 三菱自動車工業株式会社 | Contactor and discharge circuit |
| JP2017050274A (en) * | 2015-09-04 | 2017-03-09 | オムロン株式会社 | Contact switchgear |
| CN107146741A (en) * | 2017-06-09 | 2017-09-08 | 深圳市品川新能源技术有限公司 | A kind of high-voltage DC contactor |
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| Publication number | Publication date |
|---|---|
| CN108400061A (en) | 2018-08-14 |
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