CN109830403A - A kind of high voltage direct current relay - Google Patents
A kind of high voltage direct current relay Download PDFInfo
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- CN109830403A CN109830403A CN201910111366.9A CN201910111366A CN109830403A CN 109830403 A CN109830403 A CN 109830403A CN 201910111366 A CN201910111366 A CN 201910111366A CN 109830403 A CN109830403 A CN 109830403A
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- auxiliary
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Abstract
The invention discloses a kind of high voltage direct current relays, including ceramic shield, plastic frame, auxiliary exit and auxiliary reed；The ceramic shield has the first cavity that Open Side Down, and in ceramic shield, the bottom of the auxiliary exit matches in the first cavity of the ceramic shield with the auxiliary reed grafting being mounted on plastic frame auxiliary exit；One end of the auxiliary reed is set as folder spring structure, and the other end of the auxiliary reed is mutually fixed with the plastic frame；The bottom of the auxiliary exit is clamped by the clamping opening of the folder spring structure of auxiliary reed, to realize auxiliary reed to the elastic connection of auxiliary exit.The auxiliary exit that the present invention can either avoid the prior art from occurring causes scrapings when assembling with auxiliary reed and connect unstable problem, and can satisfy the requirement drawn to the screw thread of auxiliary exit, and reduce gas leakage risk；Simultaneously, additionally it is possible to prevent the drawbacks of assisting exit and auxiliary reed Joint failure appearance.
Description
Technical field
The present invention relates to relay technical fields, more particularly to a kind of high voltage direct current relay.
Background technique
Relay is a kind of electronic control device, it have control system (also known as input circuit) and by control system (again
Claim output loop), it is usually applied in automatic control circuit, it is actually to go the one of control larger current with lesser electric current
Kind " automatic switch ".Therefore the effects of playing automatic adjustment, safeguard protection, conversion circuit in circuit.DC relay is relay
One of device, existing DC relay mostly use greatly movable contact spring Direct Action Type (also referred to as solenoid Direct Action Type) scheme, this is straight
The contact part of current relay includes two static contacts (comprising load exit) and a dynamic component, and moving component includes dynamic spring portion
Divide and push bar assembly, dynamic spring part movable contact set by movable contact spring and movable contact spring both ends is constituted, and movable contact spring is usually straight piece
Formula.More and more high voltage direct current relays need auxiliary contact at present, for the auxiliary of hermetically sealed high voltage direct current relay
Contact leading-out form is usually the welding auxiliary exit in ceramic shield, and auxiliary exit is inserted into the matching hole of plastic frame
In, it is overlapped and is attached with auxiliary reed by interference fit, but there is following drawbacks for such structure: (1) be packed into
It is difficult；(2) it is easy to scrape plastics bits；(3) matching hole dimension overproof after plastic frame is used for a long time has the wind of overlap joint failure
Danger.And for auxiliary exit, existing client requires auxiliary exit using screw thread leading-out form mostly, but for complete
The high voltage direct current relay of sealing, there are no occur the auxiliary exit being welded in ceramic shield being made into screw thread in the prior art
The product that structure is directly led out mostly is that will first draw needle to be welded in ceramic shield, then weld or rivet and drawing by lead
Needle is connect with external screw-thread terminal, is formed helicitic texture and is drawn；For assist exit welding structure there are mainly two types of:
The shortcomings that one is auxiliary exits to do a step surface and the metalization layer of ceramic shield upper surface is welded, the structure is to leak
Spirit rate is high；The shortcomings that another kind is to be made in metalization layer on the hole wall of ceramic shield to weld, the structure is ceramic shield
Manufacturing process is difficult.In addition, a kind of high voltage direct current relay of the prior art is the shape using cylindrical as product, by
It is all cylindrical, such as ceramic shield, round yoke cylinder, magnetic conductive cylinder, yoke plate etc. in all Assembly parts, therefore circumferencial direction is just
There is no an anti-rotation, in this way when impact vibration inside relay part such as plastic frame will occur to turn relative to ceramic shield
Dynamic, since auxiliary exit is installed in ceramic shield, and auxiliary reed is installed on plastic frame, and plastic frame is relative to ceramics
After cover rotates, it will cause the link position stress deformation of auxiliary exit and auxiliary reed, lead to Joint failure.
Summary of the invention
It is an object of the invention to overcome the deficiency of the prior art, a kind of high voltage direct current relay is provided, by auxiliary
Exit and the improvement for assisting exit and auxiliary reed connection structure, and anti-rotation is set between the inside and outside component of relay
Mechanism, on the one hand, cause scrapings when can be avoided the auxiliary exit of prior art appearance with auxiliary reed assembly and connect not
Stable problem, and assembled convenient for auxiliary exit and auxiliary reed；On the other hand, it can satisfy the screw thread to auxiliary exit
The requirement of extraction, and can be effectively reduced the welding stress of auxiliary exit welding position, reduce gas leakage risk；Meanwhile also
The drawbacks of capable of preventing auxiliary exit and auxiliary reed Joint failure appearance.
The technical solution adopted by the present invention to solve the technical problems is: a kind of high voltage direct current relay, including ceramic shield,
Plastic frame, auxiliary exit and auxiliary reed；The ceramic shield has the first cavity that Open Side Down, the plastic frame
Top is contained in the first cavity of the ceramic shield；The auxiliary exit is in a manner of vertically arranged mounted in the ceramic shield
In the upper wall body of first cavity, the bottom of the auxiliary exit in the first cavity of the ceramic shield and is mounted on frame of plastic
Auxiliary reed grafting on frame matches；One end of the auxiliary reed is set as folder spring structure, the other end of the auxiliary reed
It is mutually fixed with the plastic frame；Clamped by the clamping opening for pressing from both sides spring structure of the bottom of the auxiliary exit by auxiliary reed, from
And realize auxiliary reed to the elastic connection of auxiliary exit.
The folder spring structure of the auxiliary reed is bent into the clamping limb with certain deflection by two and constitutes, and two folders
The shape of gripping arm is dissymmetrical structure.
In two clamping limbs of the folder spring structure of the auxiliary reed, the deflection that the clamping limb of outer end side is bent into is big
The deflection that clamping limb in inner end side is bent into.
The auxiliary exit is made using kovar alloy material, and the top of the auxiliary exit is equipped with external screw thread
Structure, to realize that screw thread is drawn.
The middle section of the auxiliary exit is equipped with ring-shaped step directed downwardly, and the ceramic shield is equipped with through-hole；The auxiliary is drawn
The ring-shaped step terrace of outlet is against the through-hole hole Yan Chu of the ceramic shield, under the ring-shaped step terrace of the auxiliary exit
Section fits in the through-hole of the ceramic shield, the ring-shaped step terrace of the auxiliary exit and the through-hole hole edge of the ceramic shield
Between by soldering mutually fix.
The ring-shaped step terrace of the auxiliary exit is additionally provided with the annular groove being recessed upwards.
The outer wall of the lower section of the ring-shaped step terrace of the inside side wall of the annular groove and the auxiliary exit
Flush.
It further, further include the round yoke cylinder that can be rotated together with the ceramic shield and can be with the frame of plastic
The magnetic conductive cylinder that frame rotates together, for the magnetic conductive cylinder in the through-hole of relay coil, the circle yoke cylinder is coated on relay
Outside device coil, it is additionally provided with anti-rotation structure between the round yoke cylinder and the magnetic conductive cylinder, to realize the ceramic shield and institute
State the anti-rotation between plastic frame.
It is described circle yoke cylinder and the magnetic conductive cylinder between anti-rotation structure include: in the bottom wall for be located at round yoke cylinder to
On the oval protrusion that protrudes out and the slotted eye being located in the bottom wall of magnetic conductive cylinder, when the magnetic conductive cylinder and the relay coil
When packed into the cylinder of round yoke cylinder together, in the bottom wall of the slotted eye of the bottom wall of the magnetic conductive cylinder and round yoke cylinder upwards
The oval protrusion protruded out matches, to realize the anti-rotation of the magnetic conductive cylinder and the round yoke cylinder.
Compared with prior art, the beneficial effects of the present invention are:
1, the present invention is due to using the first cavity that exit will be assisted to be mounted in the ceramic shield in a manner of vertically arranged
Upper wall body in, it is described auxiliary exit bottom in the first cavity of the ceramic shield be mounted on it is auxiliary on plastic frame
Reed grafting is helped to match；One end of the auxiliary reed is set as folder spring structure, the other end of the auxiliary reed and the modeling
Material frame frame is mutually fixed；The bottom of the auxiliary exit is clamped by the clamping opening of the folder spring structure of auxiliary reed, to realize auxiliary
Help reed to the elastic connection of auxiliary exit.This structure of the invention, is that auxiliary reed is designed to elastic connection structure
Spring structure is pressed from both sides, spring structure is pressed from both sides using elastic connection structure directly with auxiliary exit to slotting connection, realizes that metal (draw by auxiliary
Outlet) it is directly contacted with metal (auxiliary reed), it avoids and scrapings and unstable is caused by plastic frame in the prior art
The problem of.
2, the shape of two clamping limbs is set as dissymmetrical structure due to using by the present invention, and presss from both sides two folders of spring structure
In gripping arm, the deflection that the clamping limb of outer end side is bent into is greater than the deflection that the clamping limb of inner end side is bent into.This hair
Bright this structure is to make the clamping limb deflection of the inner end side of folder spring structure few, is fixed on for realizing with plastic frame
Together, the clamping limb deflection for pressing from both sides the outer end side of spring structure is big, that is, is easier to deform, for receiving to assist exit
Insertion, be easy to assist exit to inject in the clamping opening of folder spring structure in this way.
3, the present invention will assist exit to be designed to be made by kovar alloy material due to using, and the auxiliary is drawn
The top of outlet is equipped with external thread structure, to realize ring-shaped step terrace and the institute of screw thread extraction and the auxiliary exit
The through-hole hole for stating ceramic shield is mutually fixed between by soldering.This structure of the invention is using kovar alloy by high temperature
Hardness decline is unobvious after welding, is able to satisfy this feature of the performance requirement of screw strength, is allowed to fill using soldering is mutually fixed
With process it is simple on the basis of, realize auxiliary exit welding rear thread directly lead out.
4, the present invention is assisting the ring-shaped step terrace of exit to be additionally provided with the annular groove being recessed upwards due to using.
This structure of the invention, by the way that annular groove is arranged, the welding stress of welding position can be effectively reduced in reduction bonding area,
Reduce gas leakage risk.
5, the present invention is arranged the oval protrusion protruded upward in the bottom wall of round yoke cylinder and is leading due to using
Slotted eye is set in the bottom wall of magnetic cylinder, and the magnetic conductive cylinder is made to pack into the cylinder of round yoke cylinder together with the relay coil
When interior, the oval protrusion that protrudes upward in the slotted eye of bottom wall and the bottom wall of round yoke cylinder of magnetic conductive cylinder is allowed to match.
This structure of the invention can be realized the anti-rotation effect between the ceramic shield and the plastic frame, auxiliary avoided to draw
The link position stress deformation at end and auxiliary reed, leads to Joint failure.
Invention is further described in detail with reference to the accompanying drawings and embodiments；But a kind of high voltage direct current of the invention after
Electric appliance is not limited to the embodiment.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the schematic diagram that auxiliary exit and auxiliary reed of the invention are assembled and its matched；
Fig. 3 is the D structure schematic diagram of auxiliary reed of the invention；
Fig. 4 is the main view of auxiliary reed of the invention；
Fig. 5 is the D structure schematic diagram of auxiliary exit of the invention；
Fig. 6 is the structure sectional view of auxiliary exit of the invention；
Fig. 7 is the D structure schematic diagram of round yoke cylinder of the invention；
Fig. 8 is the D structure schematic diagram of magnetic conductive cylinder of the invention.
Specific embodiment
Embodiment
Referring to shown in Fig. 1 to Fig. 8, a kind of high voltage direct current relay of the invention, including load exit 1, ceramic shield 2,
Plastic frame 3, auxiliary exit 4 and auxiliary reed 5 and dynamic spring part 61 push bar part 62, insulating base 63, yoke plate
64, the components such as coil 65, magnetic conductive cylinder 66, yoke cylinder 67, static iron core 68, dynamic iron core 69；The ceramic shield 2 has what Open Side Down
First cavity 21, the top of the plastic frame 3 are contained in the first cavity 21 of the ceramic shield 2；The auxiliary exit 4
In a manner of vertically arranged in the upper wall body 22 of the first cavity 21 of the ceramic shield 2, the bottom of the auxiliary exit 4 exists
It is matched in first cavity 21 of the ceramic shield 2 with 5 grafting of auxiliary reed being mounted on plastic frame 3；The auxiliary spring
One end of piece 5 is set as folder spring structure 51, and the other end of the auxiliary reed 5 is fixed with 3 phase of plastic frame；The auxiliary is drawn
The bottom of outlet 4 is clamped by the clamping opening of the folder spring structure 51 of auxiliary reed 5, to realize 5 pairs of auxiliary exits 4 of auxiliary reed
Elastic connection.
In the present embodiment, the folder spring structure 51 of the auxiliary reed 5 is bent into the clamping with certain deflection by two
Arm 511,512 is constituted, and the shape of two clamping limbs 511,512 is dissymmetrical structure.
In the present embodiment, in two clamping limbs of the folder spring structure 51 of the auxiliary reed 5, the clamping limb of outer end side
511 deflections being bent into are greater than the deflection that the clamping limb 512 of inner end side is bent into.
In the present embodiment, the auxiliary exit 4 is made using kovar alloy material, the auxiliary exit 4
Top is equipped with external thread structure 41, to realize that screw thread is drawn.
In the present embodiment, the middle section of the auxiliary exit 4 is equipped with ring-shaped step 42 directed downwardly, and the ceramic shield 2 is equipped with
Through-hole 23；42 terrace of ring-shaped step of the auxiliary exit 4 is against the 23 hole Yan Chu of through-hole of the ceramic shield 2, the auxiliary
The lower section 421 of 42 terrace of ring-shaped step of exit 4 fits in the through-hole 23 of the ceramic shield 2, the auxiliary exit 4
42 terrace of ring-shaped step and 23 hole of through-hole of the ceramic shield 2 are mutually fixed between by soldering.Soldering refers to molten lower than weldment
The solder 40 and weldment (auxiliary exit 4 and ceramic shield 2) of point are filled out while heated to after brazing filler metal melts temperature using liquid solder
Fill the welding method that the gap of solid workpieces makes weldment that exit 4 and ceramic shield 2 be assisted to connect.
In the present embodiment, 42 terrace of ring-shaped step of the auxiliary exit 4 is additionally provided with the annular groove being recessed upwards
422。
In the present embodiment, the ring-shaped step 42 of the inside side wall of the annular groove 422 and the auxiliary exit 4
The outer wall flush of the lower section 421 of terrace.
In the present embodiment, ceramic shield 2 is circular cover body, and yoke cylinder 67 is circular cylinder body, since round yoke cylinder 67 is logical
It crosses connector to fix with 2 phase of ceramic shield, therefore, round yoke cylinder 67 can be rotated together with the ceramic shield 2；Due to magnetic conductive cylinder
66 with coil 65 be tight fit relationship, and the bobbin of coil 65 is fixed with 64 phase of yoke plate, and yoke plate 64 passes through insulating base
63 fix with 3 phase of plastic frame, and therefore, magnetic conductive cylinder 66 can be rotated together with the plastic frame 3, and the magnetic conductive cylinder 66 is mounted in
In the through-hole of relay coil 65, the circle yoke cylinder 67 is coated on outside relay coil 65, in the round yoke cylinder 67
It is additionally provided with anti-rotation structure between the magnetic conductive cylinder 66, to realize the anti-rotation between the ceramic shield 2 and the plastic frame 3.
In the present embodiment, the anti-rotation structure between the circle yoke cylinder 67 and the magnetic conductive cylinder 66 includes: to be located at circle
The oval protrusion 671 protruded upward in the bottom wall of yoke cylinder 67 and the slotted eye 661 being located in the bottom wall of magnetic conductive cylinder 66, when
When the magnetic conductive cylinder 66 is packed into the relay coil 65 together in the cylinder of round yoke cylinder 67, the bottom wall of the magnetic conductive cylinder 66
Slotted eye 661 and round yoke cylinder 67 bottom wall in the oval protrusion 671 that protrudes upward match, thus described in realizing
The anti-rotation of magnetic conductive cylinder 66 and the round yoke cylinder 67, and then realize anti-between the ceramic shield 2 and the plastic frame 3
Turn.
A kind of high voltage direct current relay of the invention, using will assist exit 4 in a manner of vertically arranged mounted in described
In the upper wall body 22 of first cavity 21 of ceramic shield 2, first cavity of the bottom for assisting exit 4 in the ceramic shield 2
It is matched in 21 with 5 grafting of auxiliary reed being mounted on plastic frame 3；One end of the auxiliary reed 5 is set as folder spring structure
51, the other end of the auxiliary reed 5 is fixed with 3 phase of plastic frame；The bottom of the auxiliary exit 4 is by auxiliary reed
Clamped by the clamping opening of 5 folder spring structure 51, to realize the elastic connection of 5 pairs of auxiliary reed auxiliary exits 4.Of the invention this
Kind structure, is that auxiliary reed 5 is designed to that elastic connection structure presss from both sides spring structure 51, and elastic connection structure is utilized to press from both sides spring structure
51, directly with auxiliary exit 4 to slotting connection, realize that metal (auxiliary exit) is directly contacted with metal (auxiliary reed), avoid
In the prior art scrapings and unstable problem are caused by plastic frame.
A kind of high voltage direct current relay of the invention is set as asymmetric using by the shape of two clamping limbs 511,512
Structure, and in two clamping limbs of folder spring structure, the deflection that the clamping limb 511 of outer end side is bent into is greater than inner end side
The deflection that clamping limb 512 is bent into.This structure of the invention is that the clamping limb 512 of the inner end side of folder spring structure is allowed to become
Shape amount is few, is fixed together for realizing with plastic frame, and 511 deflection of clamping limb for pressing from both sides the outer end side of spring structure is big,
It is exactly easier to deform, for receiving to assist the insertion of exit 4, is easy to that exit is assisted to inject folder spring structure 51 in this way
In clamping opening.
A kind of high voltage direct current relay of the invention, using exit 4 being assisted to be designed to by kovar alloy material system
It forms, the top of the auxiliary exit 4 is equipped with external thread structure 41, to realize that screw thread is drawn and the auxiliary is drawn
42 terrace of ring-shaped step at end 4 and 23 hole of through-hole of the ceramic shield 2 are mutually fixed between by soldering.This knot of the invention
Structure is that hardness decline is unobvious after high-temperature soldering using kovar alloy, is able to satisfy this spy of the performance requirement of screw strength
Point, using soldering mutually it is fixed be allowed to assembly process it is simple on the basis of, realize that auxiliary exit 4 welds rear thread and directly draws
Out.
A kind of high voltage direct current relay of the invention is additionally provided with using 42 terrace of ring-shaped step in auxiliary exit 4
The annular groove 422 being recessed upwards.This structure of the invention reduces bonding area, can have by the way that annular groove 422 is arranged
Effect reduces the welding stress of welding position, reduces gas leakage risk.
A kind of high voltage direct current relay of the invention, using in the bottom wall of round yoke cylinder 67 setting protrude upward
Oval protrusion 671 and the setting slotted eye 661 in the bottom wall of magnetic conductive cylinder 66, and make the magnetic conductive cylinder 66 and the relay
When coil 65 is packed into together in the cylinder of round yoke cylinder 67, allow magnetic conductive cylinder 66 bottom wall slotted eye 661 and round yoke cylinder
The oval protrusion 671 protruded upward in 67 bottom wall matches.This structure of the invention can be realized the ceramic shield 2
Anti-rotation effect between the plastic frame 3, avoids the link position stress deformation of auxiliary exit 4 and auxiliary reed 5, leads
Cause Joint failure.
Above-mentioned only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form.Although of the invention
It has been disclosed in a preferred embodiment above, however, it is not intended to limit the invention.Anyone skilled in the art is not taking off
In the case where from technical solution of the present invention range, all technical solution of the present invention is made perhaps using the technology contents of the disclosure above
Mostly possible changes and modifications, or it is revised as equivalents equivalent embodiment.Therefore, all without departing from technical solution of the present invention
Content, technical spirit any simple modifications, equivalents, and modifications made to the above embodiment, should all fall according to the present invention
In the range of technical solution of the present invention protection.
Claims (9)
1. a kind of high voltage direct current relay, including ceramic shield, plastic frame, auxiliary exit and auxiliary reed；The ceramic shield
With the first cavity that Open Side Down, the top of the plastic frame is contained in the first cavity of the ceramic shield；Its feature
It is: in the upper wall body for the first cavity that the auxiliary exit is mounted in the ceramic shield in a manner of vertically arranged, the auxiliary
The bottom of exit matches in the first cavity of the ceramic shield with the auxiliary reed grafting being mounted on plastic frame；Institute
The one end for stating auxiliary reed is set as folder spring structure, and the other end of the auxiliary reed is mutually fixed with the plastic frame；It is described auxiliary
Help the bottom of exit clamped by the clamping opening of the folder spring structure of auxiliary reed, to realize auxiliary reed to auxiliary exit
Elastic connection.
2. high voltage direct current relay according to claim 1, it is characterised in that: the folder spring structure of the auxiliary reed is by two
A clamping limb being bent into certain deflection is constituted, and the shape of two clamping limbs is dissymmetrical structure.
3. high voltage direct current relay according to claim 2, it is characterised in that: the two of the folder spring structure of the auxiliary reed
In a clamping limb, the deflection that the clamping limb of outer end side is bent into is greater than the deflection that the clamping limb of inner end side is bent into.
4. high voltage direct current relay according to claim 1, it is characterised in that: the auxiliary exit uses kovar alloy
Material is made, and the top of the auxiliary exit is equipped with external thread structure, to realize that screw thread is drawn.
5. high voltage direct current relay according to claim 4, it is characterised in that: the middle section of the auxiliary exit is equipped with court
Under ring-shaped step, the ceramic shield be equipped with through-hole；The ring-shaped step terrace of the auxiliary exit is against the ceramic shield
The lower section of through-hole hole Yan Chu, the ring-shaped step terrace of the auxiliary exit fit in the through-hole of the ceramic shield, described auxiliary
The ring-shaped step terrace of exit and the through-hole hole of the ceramic shield is helped mutually to fix between by soldering.
6. high voltage direct current relay according to claim 5, it is characterised in that: the ring-shaped step rank of the auxiliary exit
Face is additionally provided with the annular groove being recessed upwards.
7. high voltage direct current relay according to claim 6, it is characterised in that: the inside side wall of the annular groove and institute
State the outer wall flush of the lower section of the ring-shaped step terrace of the auxiliary exit.
8. high voltage direct current relay according to claim 1, it is characterised in that: it is further, further include can with it is described
The round yoke cylinder and the magnetic conductive cylinder that can be rotated together with the plastic frame, the magnetic conductive cylinder that ceramic shield rotates together are mounted in
In the through-hole of relay coil, the circle yoke cylinder is coated on outside relay coil, is led in the round yoke cylinder with described
Anti-rotation structure is additionally provided between magnetic cylinder, to realize the anti-rotation between the ceramic shield and the plastic frame.
9. high voltage direct current relay according to claim 8, it is characterised in that: the circle yoke cylinder and the magnetic conductive cylinder
Between anti-rotation structure include: the oval protrusion protruded upward in the bottom wall for be located at round yoke cylinder and the bottom that is located at magnetic conductive cylinder
Slotted eye in wall, it is described to lead when the magnetic conductive cylinder is packed into together with the relay coil in the cylinder of round yoke cylinder
The oval protrusion protruded upward in the slotted eye of the bottom wall of magnetic cylinder and the bottom wall of round yoke cylinder matches, to realize institute
State the anti-rotation of magnetic conductive cylinder and the round yoke cylinder.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910111366.9A CN109830403A (en) | 2019-02-12 | 2019-02-12 | A kind of high voltage direct current relay |
| CN202410074170.8A CN117810029A (en) | 2019-02-12 | 2019-02-12 | High-voltage direct-current relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910111366.9A CN109830403A (en) | 2019-02-12 | 2019-02-12 | A kind of high voltage direct current relay |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410074170.8A Division CN117810029A (en) | 2019-02-12 | 2019-02-12 | High-voltage direct-current relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109830403A true CN109830403A (en) | 2019-05-31 |
Family
ID=66863546
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410074170.8A Pending CN117810029A (en) | 2019-02-12 | 2019-02-12 | High-voltage direct-current relay |
| CN201910111366.9A Pending CN109830403A (en) | 2019-02-12 | 2019-02-12 | A kind of high voltage direct current relay |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202410074170.8A Pending CN117810029A (en) | 2019-02-12 | 2019-02-12 | High-voltage direct-current relay |
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| CN (2) | CN117810029A (en) |
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|---|---|---|---|---|
| CN110310865A (en) * | 2019-07-22 | 2019-10-08 | 三友联众集团股份有限公司 | A kind of contact conducting construction for relay |
| CN110310865B (en) * | 2019-07-22 | 2024-02-20 | 三友联众集团股份有限公司 | Contact conduction structure for relay |
| CN114083240A (en) * | 2021-11-29 | 2022-02-25 | 贵州天义电器有限责任公司 | Welding method for two-body conductive block |
| CN114083240B (en) * | 2021-11-29 | 2024-03-01 | 贵州天义电器有限责任公司 | Welding method for two-body conductive block |
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| Publication number | Publication date |
|---|---|
| CN117810029A (en) | 2024-04-02 |
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