CN110459439B - Heavy current relay with load terminal having signal monitoring function - Google Patents
Heavy current relay with load terminal having signal monitoring function Download PDFInfo
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- CN110459439B CN110459439B CN201910338696.1A CN201910338696A CN110459439B CN 110459439 B CN110459439 B CN 110459439B CN 201910338696 A CN201910338696 A CN 201910338696A CN 110459439 B CN110459439 B CN 110459439B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 28
- 230000003068 static effect Effects 0.000 claims abstract description 128
- 238000001746 injection moulding Methods 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims description 67
- 238000000034 method Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000003745 diagnosis Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/14—Terminal arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Elimination Of Static Electricity (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention discloses a heavy-current relay with a load terminal having signal monitoring function, which comprises a core part and a base part; the base part comprises two static spring parts and a plastic body for fixing the two static spring parts together in an insulating manner in an injection molding manner; the static spring part comprises a main body part horizontally buried in the plastic body, a contact part bent to be exposed above the plastic body and a connecting part horizontally exposed at the side edge of the plastic body to serve as a load terminal; the main body parts of the two static spring parts are respectively provided with a convex part which protrudes upwards and is not covered by the plastic body, and the convex parts are also connected with a signal wire. On one hand, the invention can monitor the state of the contact in real time, judge whether the relay works normally or not, and check the risk in time; on the other hand, the contact opening and closing times of the relay can be collected and counted, and when the failure times are reached, replacement or maintenance can be automatically reminded, so that the normal application of the relay is ensured.
Description
Technical Field
The invention relates to the technical field of relays, in particular to a high-current relay with a load terminal having a signal monitoring function.
Background
The relay is an electronic control device, and is an electric appliance that causes a predetermined step change in a controlled amount in an electric output circuit when a change in an input amount (excitation amount) reaches a predetermined requirement. The relay is connected with the coil through the electromagnetic device, and the coil generates a magnetic field by supplying smaller current to the coil, and the armature is attracted or released by the generation or disappearance of the magnetic field, so that the movable contact on the movable contact bridge is driven to be closed or opened with the fixed contact on the fixed spring terminal, and the high-current operation is controlled. In the existing relay, after the contacts of the relay are attracted, no corresponding detection component is used for detecting whether the contacts are conductive, and once the contacts are non-conductive or the contacts are bonded, the problems are difficult to quickly detect and feed back when the relay is used; on the other hand, the contact opening and closing times of the relay also have certain service life requirements, but the existing relay does not count the contact opening and closing times of the relay, and the accurate application of the relay can be influenced when the failure times are reached.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a high-current relay with a load terminal with signal monitoring function, which can monitor the state of a contact in real time, judge whether the relay works normally and check risks in time through structural improvement; on the other hand, the contact opening and closing times of the relay can be collected and counted, and when the failure times are reached, replacement or maintenance can be automatically reminded, so that the normal application of the relay is ensured.
The technical scheme adopted for solving the technical problems is as follows: a high-current relay with a load terminal having signal monitoring function comprises a core part and a base part; the movement part comprises a magnetic circuit part and a movable spring armature part which is operated by the magnetic circuit part; the base part comprises two static spring parts and a plastic body for fixing the two static spring parts together in an insulating manner in an injection molding manner; the static spring part is provided with a static contact; the movable contact of the movable spring armature part of the movement part is matched with the fixed contact of the fixed spring part, so that when the contacts are closed, current flows in from the load terminal of one fixed spring part and flows out from the load terminal of the other fixed spring part; the two static spring parts are also respectively provided with a convex part which protrudes upwards but is not covered by the plastic body, and the convex parts of the two static spring parts are respectively connected with a signal wire so as to collect signals of the contact closing state and the contact opening and closing times.
The movable spring armature part comprises a bridging piece and movable contacts arranged at two end parts of the bridging piece; the static spring part is of a sheet-shaped structure and comprises a main body part horizontally buried in the plastic body, a contact part bent to be exposed on the plastic body and a connecting part horizontally exposed on the side edge of the plastic body to serve as a load terminal, and the static contact is arranged on the contact part; two ends of the bridge piece of the movement part respectively correspond to the contact parts of the two static spring parts; the convex part is arranged on the main body part of the static spring part.
And a metal conducting plate is further arranged between the signal wire and the convex part of the static spring part, the metal conducting plate is provided with a first through hole, and the first through hole of the metal conducting plate is matched with the convex part of the static spring part and is connected in a welding or riveting mode.
And one ends of the two signal wires are respectively connected with corresponding metal conducting plates, and the other ends of the two signal wires are respectively connected with a connector and are connected with a control module outside the relay through the connectors.
The convex part of the static spring part and the main body part of the static spring part are of an integrated structure, and the main body part of the static spring part is formed by flapping upwards from the bottom surface.
And the periphery of the convex parts corresponding to the two static spring parts in the plastic body is also respectively provided with a yielding area, the convex parts of the two static spring parts are respectively sleeved with springs, and the springs are compressed between the metal conducting plate and the main body part of the static spring part in the corresponding yielding areas so as to increase the electric contact area of the metal conducting plate and the static spring part by using the springs.
The convex part of the static spring part and the main body part of the static spring part are discrete parts, the convex part of the static spring part is a metal rivet, a second through hole is formed in a corresponding position of the main body part of the static spring part, the metal rivet is matched in the second through hole of the main body part of the static spring part, and the bottom of the metal rivet is riveted and matched with the second through hole of the main body part of the static spring part.
The top of the metal rivet is provided with a step, and the first through hole of the metal conducting strip is matched with the step of the metal rivet.
The signal line is a flexible wire.
Compared with the prior art, the invention has the beneficial effects that:
1. The invention adopts the structure that the main body parts of the two static spring parts are respectively provided with the convex parts which are upwards protruded and are not covered by the plastic body, and the convex parts of the two static spring parts are respectively connected with a signal wire so as to collect signals of the contact closing state and the contact opening and closing times. According to the structure, the signal outgoing line is added to the static spring part, when the contact is closed, the two signal lines are communicated, and the communication signals of the two signal lines are collected, so that on one hand, the state of the contact can be monitored in real time, whether the relay works normally or not can be judged, and risks can be timely checked; on the other hand, the contact opening and closing times of the relay can be collected and counted, and when the failure times are reached, replacement or maintenance can be automatically reminded, so that the normal application of the relay is ensured. The invention increases the signal monitoring function of the relay.
2. The invention adopts the structure that the convex part of the static spring part and the main body part of the static spring part are separated parts, the convex part of the static spring part is a metal rivet, a second through hole is arranged at the corresponding position of the main body part of the static spring part, the metal rivet is matched in the second through hole of the main body part of the static spring part, and the bottom of the metal rivet is riveted and matched with the second through hole of the main body part of the static spring part. The structure of the invention is convenient for the process manufacture of the convex part of the static spring part, and when the convex part of the static spring part is matched with the metal conducting strip, the damage of the plastic body can not be caused, and the contact stability of the metal conducting strip and the convex part of the static spring part can also be improved because the metal rivet is a solid body.
3. The invention adopts the step arranged at the top of the metal rivet, so that the first through hole of the metal conducting strip is matched with the step of the metal rivet. The structure of the invention can increase the conductive area of the metal conductive sheet and the static spring part by utilizing the steps of the metal rivet, thereby improving the conductive reliability.
4. Because the invention adopts the plastic body, the peripheries of the convex parts corresponding to the two static spring parts are respectively provided with the abdication areas, the convex parts of the two static spring parts are respectively sleeved with the springs, and the springs are compressed between the metal conducting strip and the main body part of the static spring part in the corresponding abdication areas. The structure of the invention utilizes the deformability of the spring, and is always contacted with the metal conducting plate and the main body part of the static spring part after the spring is deformed, thereby ensuring the reliable connection between the signal diagnosis terminal (namely the metal conducting plate) and the load terminal (namely the main body part of the static spring part), further ensuring the transmission of diagnosis signals and ensuring the effective reading of monitoring signals by the system.
5. The invention adopts the soft wire, one end of the signal wire is connected with the metal conducting strip, and the other end of the signal wire is connected with one connector.
The invention is described in further detail below with reference to the drawings and examples; the high-current relay with the load terminal having signal monitoring according to the present invention is not limited to the embodiment.
Drawings
FIG. 1 is a schematic perspective view of a first embodiment of the present invention;
FIG. 2 is an exploded perspective view of a first embodiment of the present invention;
FIG. 3 is a schematic perspective view of a base portion of a first embodiment of the present invention;
FIG. 4 is a top view of a base portion of a first embodiment of the invention;
FIG. 5 is a schematic view of a flipped side of a base portion of a first embodiment of the invention;
FIG. 6 is a schematic diagram of a static spring portion mated with a signal line in accordance with a first embodiment of the present invention;
FIG. 7 is an exploded view of a stationary spring portion mated with a signal wire in accordance with a first embodiment of the present invention;
FIG. 8 is a top view of a stationary spring portion mated with a signal wire in accordance with a first embodiment of the present invention;
FIG. 9 is a schematic diagram of a flip side of a dead spring portion mated with a signal line in accordance with a first embodiment of the present invention;
FIG. 10 is a cross-sectional view taken along line A-A of FIG. 9;
FIG. 11 is a cross-sectional view (before caulking) taken along line B-B in FIG. 9;
FIG. 12 is a cross-sectional view taken along line B-B of FIG. 9 (after staking);
FIG. 13 is an exploded view of a stationary spring portion mated with a signal wire in accordance with a second embodiment of the present invention;
FIG. 14 is a schematic diagram of a flip side of a static spring portion mated with a signal line in accordance with a second embodiment of the present invention;
FIG. 15 is a cross-sectional view taken along line C-C of FIG. 14;
FIG. 16 is a cross-sectional view taken along line D-D of FIG. 14;
FIG. 17 is a schematic view of a stationary spring portion mated with a signal wire in accordance with a third embodiment of the present invention;
FIG. 18 is an exploded view of a stationary spring portion mated with a signal wire in accordance with a third embodiment of the present invention;
FIG. 19 is a schematic view of a flipped side of a static spring portion mated with a signal line in accordance with a third embodiment of the present invention;
FIG. 20 is a cross-sectional view taken along line E-E of FIG. 19;
Fig. 21 is a sectional view taken along line F-F in fig. 19.
Detailed Description
Example 1
Referring to fig. 1 to 12, a high-current relay with signal monitoring for load terminals according to the present invention includes a case 1, a deck portion 2, and a base portion 3; the housing 1 is mounted on the base part 3 and accommodates the movement part 2 therein, the movement part 2 including a magnetic circuit part 21 and a moving spring armature part 22 operated by the magnetic circuit part; the moving spring armature portion 22 includes a bridge piece 221 and moving contacts 222 provided at both ends of the bridge piece 221; the movable contact 222 of the present embodiment is a separate component fixed to the bridge piece 221, however, the movable contact may be a protrusion integrally formed with the bridge piece 221, or the movable contact may be directly formed by an end portion of the bridge piece 221; the base part 3 comprises two static spring parts 31 and a plastic body 32 which fixes the two static spring parts 31 together in an insulated manner by injection molding; the static spring part 31 is in a sheet structure and comprises a main body part 311 horizontally buried in the plastic body, a contact part 312 bent to be exposed above the plastic body and a connecting part 313 horizontally exposed at the side edge of the plastic body 32 to serve as a load terminal, wherein the contact part 312 is provided with a static contact 314, the static contact 314 of the embodiment is a single part and is fixed on the contact part 312 of the static spring part 31, and of course, the static contact can also be a bulge integrally formed by the contact part 312 of the static spring part 31 or a static contact can be directly formed by the contact part 312 of the static spring part 31; the movement part 2 is mounted on the base part 3, and two ends of the bridge piece 221 of the movement part 2 respectively correspond to the contact parts 312 of the two static spring parts 31, so that when the contacts are closed (namely, the movable contacts 222 at two ends of the bridge piece 221 correspondingly contact with the static contacts 314 of the contact parts 312 of the two static spring parts 31), current flows in from the load terminal of one static spring part and flows out from the load terminal of the other static spring part; the main body 311 of the two static spring parts 31 is also provided with a convex part 4 protruding upwards and not covered by the plastic body 32, and the convex parts 4 of the two static spring parts 31 are also connected with a signal wire 5 respectively so as to collect signals of the contact closing state and the contact opening and closing times.
A metal conductive sheet 6 is further disposed between the signal wire 5 and the protruding portion 4 of the static spring portion, the metal conductive sheet 6 is provided with a first through hole 61, and the first through hole 61 of the metal conductive sheet 6 is fitted on the protruding portion 4 of the static spring portion 31 and is connected by welding or riveting.
In this embodiment, one end of each of the two signal wires 5 is connected to a corresponding metal conductive sheet 6, and the other end of each of the two signal wires 5 is connected to a connector 7, and is connected to a control module outside the relay through the connector 7.
In this embodiment, the protruding portion 4 of the static spring portion and the main body portion 311 of the static spring portion are separate components, the protruding portion 4 of the static spring portion is a metal rivet, a second through hole 315 is provided at a corresponding position of the main body portion 311 of the static spring portion, the metal rivet 4 is fitted in the second through hole 315 of the main body portion 311 of the static spring portion, and the bottom of the metal rivet 4 is riveted and matched with the second through hole 315 of the main body portion 311 of the static spring portion.
In this embodiment, the top of the metal rivet 4 is provided with a step 41, and the first through hole 61 of the metal conductive sheet 6 is matched with the step 41 of the metal rivet 4 and is fixed by riveting.
In this embodiment, the signal line 5 is a flexible wire.
The invention relates to a heavy-current relay with a load terminal having signal monitoring function, which is characterized in that a convex part 4 protruding upwards but not covered by a plastic body is respectively arranged in a main body part 311 of two static spring parts 31, and the convex parts 4 of the two static spring parts 31 are respectively connected with a signal wire 5 so as to collect signals of a contact closing state and contact opening and closing times. According to the structure, by adding the signal outgoing line 5 on the static spring part 31, when the contact is closed, the two signal lines are also communicated, and by collecting the communication signals of the two signal lines, on one hand, the state of the contact can be monitored in real time, whether the relay works normally or not can be judged, and risks can be timely checked; on the other hand, the contact opening and closing times of the relay can be collected and counted, and when the failure times are reached, replacement or maintenance can be automatically reminded, so that the normal application of the relay is ensured. The invention increases the signal monitoring function of the relay.
The invention relates to a heavy-current relay with a load terminal having signal monitoring function, which adopts a structure that a convex part 4 of a static spring part and a main body part 311 of the static spring part are respectively arranged as separate parts, the convex part 4 of the static spring part is a metal rivet, a second through hole 315 is arranged at a corresponding position of the main body part 311 of the static spring part, the metal rivet 4 is matched in the second through hole 315 of the main body part 311 of the static spring part, and the bottom of the metal rivet 4 is riveted and matched with the second through hole 315 of the main body part 31 of the static spring part. The structure of the invention is convenient for the process manufacture of the convex part of the static spring part, and when the convex part of the static spring part is matched with the metal conducting strip, the damage of the plastic body can not be caused, and the contact stability of the metal conducting strip and the convex part of the static spring part can also be improved because the metal rivet is a solid body.
The invention relates to a heavy-current relay with a load terminal having signal monitoring function, which adopts a step 41 arranged at the top of a metal rivet 4, and a first through hole 61 of a metal conducting sheet 6 is matched at the step 41 of the metal rivet 4. The structure of the invention can increase the conductive area of the metal conductive sheet 6 and the static spring part 31 by utilizing the step 41 of the metal rivet, thereby improving the conductive reliability.
The invention relates to a heavy-current relay with a load terminal having signal monitoring, which adopts a soft wire as a signal wire 5, wherein one end of the signal wire 5 is connected with a metal conducting plate 6, and the other end of the signal wire 5 is connected with a connector 7.
Example two
Referring to fig. 13 to 16, a high current relay with signal monitoring for load terminals according to the present invention is different from the first embodiment in that the protruding portion of the static spring portion is formed differently, and in this embodiment, the protruding portion 8 of the static spring portion and the main body portion 311 of the static spring portion are integrally formed and are formed by the main body portion 311 of the static spring portion being flapped upward from the bottom surface.
Example III
Referring to fig. 17 to 21, a heavy current relay with signal monitoring on a load terminal according to the present invention is different from the second embodiment in that, in the plastic body 32, a relief area is further provided at the periphery of the protruding portions 8 corresponding to the two static spring portions, respectively, that is, when the base portion 3 is formed by injection molding the two static spring portions 31, the plastic is not wrapped around the protruding portions 8, and a circle of plastic is provided beside the protruding portions 8, so that the main body 311 of the static spring portion at this position is also exposed, the protruding portions 8 of the two static spring portions are respectively sleeved with springs 9, and the springs 9 are compressed between the metal conductive sheet 6 and the main body 311 of the static spring portion in the corresponding relief areas, so that the electrical contact area between the metal conductive sheet 6 and the static spring portion 31 is increased by using the springs 9; the spring 9 serves to communicate the load terminal (i.e., the stationary spring portion 31) and the signal line connection terminal (i.e., the metal conductive plate 6).
The invention relates to a heavy-current relay with a load terminal having signal monitoring function, which is characterized in that a plastic body 32 is provided with a yielding zone at the periphery of a convex part 8 corresponding to two static spring parts 31, springs 9 are respectively sleeved on the convex parts of the two static spring parts, and the springs 9 are compressed between a metal conducting plate 6 and a main body part 311 of the static spring part in the corresponding yielding zone. The structure of the invention utilizes the deformability of the spring 9, and the spring 9 is always contacted with the metal conducting strip 6 and the main body part 311 of the static spring part after deformation, thereby ensuring the reliable connection between the signal diagnosis terminal (namely the metal conducting strip) and the load terminal (namely the main body part of the static spring part), further ensuring the transmission of the diagnosis signal, and further ensuring the effective reading of the monitoring signal by the system.
The foregoing is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. While the invention has been described with reference to preferred embodiments, it is not intended to be limiting. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or be modified to equivalent embodiments, without departing from the scope of the technology. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present invention shall fall within the scope of the technical solution of the present invention.
Claims (9)
1. A high-current relay with a load terminal having signal monitoring function comprises a core part and a base part; the movement part comprises a magnetic circuit part and a movable spring armature part which is operated by the magnetic circuit part; the base part comprises two static spring parts and a plastic body for fixing the two static spring parts together in an insulating manner in an injection molding manner; the static spring part is provided with a static contact; the movable contact of the movable spring armature part of the movement part is matched with the fixed contact of the fixed spring part, so that when the contacts are closed, current flows in from the load terminal of one fixed spring part and flows out from the load terminal of the other fixed spring part; the method is characterized in that: the two static spring parts are also respectively provided with a convex part which protrudes upwards but is not covered by the plastic body, and the convex parts of the two static spring parts are respectively connected with a signal wire so as to collect signals of the contact closing state and the contact opening and closing times.
2. The high current relay with signal monitoring for load terminals of claim 1, wherein: the movable spring armature part comprises a bridging piece and movable contacts arranged at two end parts of the bridging piece; the static spring part is of a sheet-shaped structure and comprises a main body part horizontally buried in the plastic body, a contact part bent to be exposed on the plastic body and a connecting part horizontally exposed on the side edge of the plastic body to serve as a load terminal, and the static contact is arranged on the contact part; two ends of the bridge piece of the movement part respectively correspond to the contact parts of the two static spring parts; the convex part is arranged on the main body part of the static spring part.
3. The high current relay with signal monitoring for load terminals according to claim 2, wherein: and a metal conducting plate is further arranged between the signal wire and the convex part of the static spring part, the metal conducting plate is provided with a first through hole, and the first through hole of the metal conducting plate is matched with the convex part of the static spring part and is connected in a welding or riveting mode.
4. A high current relay with signal monitoring for load terminals as recited in claim 3, wherein: one end of each of the two signal wires is respectively connected with the corresponding metal conducting plate, and the other end of each of the two signal wires is respectively connected with one connector and is connected with a control module outside the relay through the connector.
5. A high current relay with signal monitoring for load terminals as recited in claim 3, wherein: the convex part of the static spring part and the main body part of the static spring part are of an integrated structure, and the main body part of the static spring part is formed by flapping upwards from the bottom surface.
6. The high current relay with signal monitoring for load terminals of claim 5, wherein: and the periphery of the convex parts corresponding to the two static spring parts in the plastic body is also respectively provided with a yielding area, the convex parts of the two static spring parts are respectively sleeved with springs, and the springs are compressed between the metal conducting plate and the main body part of the static spring part in the corresponding yielding areas so as to increase the electric contact area of the metal conducting plate and the static spring part by using the springs.
7. A high current relay with signal monitoring for load terminals as recited in claim 3, wherein: the convex part of the static spring part and the main body part of the static spring part are discrete parts, the convex part of the static spring part is a metal rivet, a second through hole is formed in a corresponding position of the main body part of the static spring part, the metal rivet is matched in the second through hole of the main body part of the static spring part, and the bottom of the metal rivet is riveted and matched with the second through hole of the main body part of the static spring part.
8. The high current relay with signal monitoring for load terminals of claim 7, wherein: the top of the metal rivet is provided with a step, and the first through hole of the metal conducting strip is matched with the step of the metal rivet.
9. The high current relay with signal monitoring for load terminals according to any one of claims 1 to 8, wherein: the signal line is a flexible wire.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910338696.1A CN110459439B (en) | 2019-04-25 | 2019-04-25 | Heavy current relay with load terminal having signal monitoring function |
| PCT/CN2020/086644 WO2020216321A1 (en) | 2019-04-25 | 2020-04-24 | Relay coil assembly |
| US17/605,957 US11929224B2 (en) | 2019-04-25 | 2020-04-24 | Relay coil assembly |
| EP20794801.9A EP3961669A4 (en) | 2019-04-25 | 2020-04-24 | Relay coil assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910338696.1A CN110459439B (en) | 2019-04-25 | 2019-04-25 | Heavy current relay with load terminal having signal monitoring function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110459439A CN110459439A (en) | 2019-11-15 |
| CN110459439B true CN110459439B (en) | 2024-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910338696.1A Active CN110459439B (en) | 2019-04-25 | 2019-04-25 | Heavy current relay with load terminal having signal monitoring function |
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| CN (1) | CN110459439B (en) |
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