CN209859880U - High-voltage direct-current relay with main contact working state monitoring function - Google Patents
High-voltage direct-current relay with main contact working state monitoring function Download PDFInfo
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- CN209859880U CN209859880U CN201920733668.5U CN201920733668U CN209859880U CN 209859880 U CN209859880 U CN 209859880U CN 201920733668 U CN201920733668 U CN 201920733668U CN 209859880 U CN209859880 U CN 209859880U
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Abstract
The utility model discloses a high-voltage direct-current relay with the function of detecting the working state of a main contact, which comprises a ceramic cover, a main leading-out end, a movable component, a yoke iron plate and a coil; the ceramic cover is matched on the yoke iron plate and encloses a cavity for accommodating the main contact; the moving assembly comprises a pushing rod component and a driving spring arranged in the head part of the pushing rod component, and the top of the ceramic cover is also provided with an exhaust pipe; the lower part of the exhaust pipe is also sleeved with a first conductor which can slide along the exhaust pipe in a vertically contact manner, and the first conductor is also connected with the moving assembly and enables the first conductor to be in contact with the yoke plate when the coil does not work; the yoke iron plate is also provided with a second conductor; the exhaust pipe and the second conductor are respectively connected with a signal wire. The utility model discloses can reach and add auxiliary contact in order to realize the monitoring to the main contact action state in high voltage direct current relay, the volume that can not too greatly increase high voltage direct current relay product again is applied to in the occasion that the space is small in order to accord with the product.
Description
Technical Field
The utility model relates to a high voltage direct current relay technical field especially relates to a high voltage direct current relay with monitoring main contact operating condition function.
Background
The high-voltage direct-current relay in the prior art comprises a contact part and a magnetic circuit part, wherein the magnetic circuit part adopts a direct-acting magnetic circuit structure, the contact part is arranged on the upper part, the magnetic circuit part is arranged on the lower part, the magnetic circuit part drives a movable spring part of the contact part to move through a pushing rod part, the movable spring part usually adopts a straight-piece movable spring (also called a bridge-type movable spring), and the connection and disconnection of loads are realized through the contact and the separation of the straight-piece movable spring and two stationary contact leading-out ends (namely two load leading-out ends). In the high-voltage direct-current relay, a moving contact and a static contact are usually accommodated in a cavity of a ceramic cover, and in order to accelerate the extinguishing of electric arc, the interior of the cavity is vacuumized and is protected by filling inert gas at the position where the contacts are matched; in order to realize the function of air inflation and exhaust of the sealed cavity of the product, an exhaust pipe (copper pipe) is usually connected to the cavity to be sealed to satisfy the above function. The high-voltage direct-current relay with the auxiliary contact usually adopts a straight-piece type auxiliary reed which is arranged in a push rod component and is vertically crossed with the projection of a driving reed on the same horizontal plane, so that two auxiliary static contacts are led out to be positioned at two sides of a connecting line led out by two main static contacts, the structure can increase the volume of a product due to the addition of the auxiliary contacts, when the volume of the product is limited, for example, the high-voltage direct-current relay applied to a charging pile item, the difficulty is caused for the addition of the auxiliary contacts.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a high-voltage direct current relay with detect main contact operating condition function, through institutional advancement, can reach and add auxiliary contact in order to realize the monitoring to main contact action state in high-voltage direct current relay, can not excessively greatly increase the volume of high-voltage direct current relay product again and be applied to in the occasion that the space is small in order to accord with the product.
The utility model provides a technical scheme that its technical problem adopted is: a high-voltage direct-current relay with a function of detecting the working state of a main contact comprises a ceramic cover, a main leading-out end, a movable assembly, a yoke iron plate and a coil; the ceramic cover is matched on the yoke iron plate and encloses a cavity for accommodating the main contact; the two main leading-out ends are respectively arranged at the top of the ceramic cover, and the bottom ends which are respectively set as main stationary contacts are positioned in the cavity; the movable assembly comprises a pushing rod component and a driving spring arranged in the head part of the pushing rod component, the head part of the pushing rod component is matched in the cavity, and driving contacts arranged at two ends of the driving spring are correspondingly matched with main static contacts of two main leading-out ends; the tail end of the movable assembly penetrates through the yoke iron plate to be matched with a coil below the yoke iron plate so as to push the active spring to move to enable the contact to be contacted when the coil works; the top of the ceramic cover is also provided with an exhaust pipe made of copper material, and the lower part of the exhaust pipe is positioned in the cavity; the lower part of the exhaust pipe is also sleeved with a first conductor which can slide along the exhaust pipe in a vertically contact manner, and the first conductor is also connected with the moving assembly and enables the first conductor to be in contact with the yoke plate when the coil does not work; the yoke iron plate is also provided with a second conductor; and the exhaust pipe and the second conductor are respectively connected with a signal wire, so that the working state of the main contact is monitored.
The first electric conductor is a contact ring, the movable assembly is provided with an insulating part extending towards the exhaust pipe in the horizontal direction, and the movable assembly drives the contact ring to move through the insulating part.
The contact ring is provided with a downward step, the movable assembly is provided with an insulating arm extending towards the exhaust pipe in the horizontal direction, and the insulating arm is matched with the step of the contact ring from bottom to top in a clearance mode so as to drive the contact ring to move upwards to be separated from the contact with the yoke plate when the movable assembly moves upwards.
And a pressure spring is further arranged between the top end surface of the contact ring and the inner wall of the top of the ceramic cover, and when the movable assembly moves downwards to enable the insulating arm to be separated from the contact with the step of the contact ring, the pressure spring resets to drive the contact ring to move downwards to be in contact with the yoke plate again.
The second conductor is a convex bract integrally formed on the yoke plate.
The convex bracts of the yoke iron plate are positioned outside the covered area of the ceramic cover, one signal wire is sleeved at the convex bracts of the yoke iron plate through one connecting terminal, and the other signal wire is sleeved and contacted at the exhaust pipe on the ceramic cover through the other connecting terminal.
The projection of the exhaust pipe on the yoke iron plate and the projection of the convex bracts of the yoke iron plate on the yoke iron plate are positioned on the same side relative to a connecting line between the two main leading-out ends.
The push rod part comprises a U-shaped support, a first fixing piece and a push rod, one end of the push rod is connected with the first fixing piece into a whole through an injection molding plastic body, the other end of the push rod is connected with a movable iron core to serve as the tail of the push rod part to be matched with a coil, two ends of the U-shaped support face downwards and are respectively connected with the first fixing pieces extending towards two sides of the plastic body, an active spring is arranged in the U-shaped support through a main spring to form the head of the push rod part, one end of the main spring enables the active spring to be propped against the inner side of the top of the U-shaped support, and the other end of the main spring is propped against the upper surface of the plastic; the insulating arm is formed by extending the plastic body towards the exhaust pipe.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model adopts the structure that the first electric conductor which can slide along the exhaust pipe in a vertical contact way is sleeved at the lower part of the exhaust pipe, and the first electric conductor is also connected with the movable component, so that the first electric conductor is contacted with the yoke plate when the coil does not work; the yoke iron plate is also provided with a second conductor; and the exhaust pipe and the second conductor are respectively connected with a signal wire. The utility model discloses an utilize the blast pipe, first electric conductor, yoke iron plate, the second electric conductor constitutes the detection return circuit of main contact operating condition, first electric conductor and yoke iron plate are equivalent to the normally closed auxiliary contact who is used for detecting the main contact, the blast pipe is equivalent to the supplementary end of drawing forth, the second electric conductor is equivalent to the supplementary end of drawing forth down, when the relay coil does not work, first electric conductor contacts with yoke iron plate mutually, the return circuit that the signal line is connected switches on, when relay coil during operation, first electric conductor and yoke iron plate contactless, the return circuit that the signal line is connected does not switch on, thereby realize monitoring main contact operating condition. The utility model discloses because make full use of blast pipe and yoke board, can reach and realize the auxiliary contact function in order to realize the monitoring to the main contact action state in high-voltage direct current relay, can not increase the volume of high-voltage direct current relay product again and be applied to in the occasion that the space is small in order to accord with the product.
2. The utility model discloses owing to adopted and designed first electric conductor for contacting the ring, with the protruding bud of yoke iron plate upper portion an organic whole formation as the second electric conductor, have simple structure, characteristics with low costs, and owing at the top face of contacting the ring with still be equipped with the pressure spring between the top inner wall of ceramic cover, utilize the pressure spring to play the effect of restoring to the throne of contacting the ring on the one hand, on the other hand can improve the stability that contacts the ring and blast pipe electricity is connected.
The present invention will be described in further detail with reference to the accompanying drawings and examples; however, the present invention is not limited to the embodiment, and the high voltage dc relay with the function of detecting the working state of the main contact is provided.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present invention;
fig. 2 is a front view of an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a perspective view of a partial structure of an embodiment of the present invention;
FIG. 5 is a front view of a partial configuration of an embodiment of the present invention;
fig. 6 is a top view of a partial configuration of an embodiment of the present invention;
figure 7 is a cross-sectional view of a partial configuration of an embodiment of the present invention;
fig. 8 is a schematic perspective view of the movable assembly, yoke plate and contact ring of an embodiment of the present invention;
fig. 9 is a front view of the movable assembly, yoke plate and contact ring of an embodiment of the present invention in cooperation;
fig. 10 is a top view of the movable assembly, yoke plate and contact ring of an embodiment of the present invention;
fig. 11 is a sectional view taken along line B-B in fig. 9.
Detailed Description
Examples
Referring to fig. 1 to 11, a high-voltage direct-current relay with a function of detecting a working state of a main contact according to the present invention includes an upper case 11, a base 12, a ceramic cover 2, a main terminal 3, a movable assembly 4, a yoke plate 5, and a coil 6; the ceramic cover 2 is fitted on the yoke iron plate 5 and encloses a cavity 20 for accommodating a main contact; two main leading-out terminals 3 are respectively arranged at the top of the ceramic cover 2 and the bottom ends which are respectively set as main stationary contacts are positioned in the cavity 20; the movable assembly 4 comprises a pushing rod part 41 and a driving spring 42 arranged in a head part 411 of the pushing rod part, the head part 411 of the pushing rod part is fitted in the cavity 20, and driving contacts arranged at two ends of the driving spring 42 are correspondingly matched with the driving static contacts of the two main leading-out terminals 3, in this embodiment, two end parts of the driving spring 42 are used as the driving contacts; the tail end 412 of the movable component 4 penetrates through the yoke iron plate 5 and is matched with the coil 6 below the yoke iron plate 5, so that the active spring 42 is pushed to move to enable the active contact to be contacted with the main static contact when the coil 6 works; the top of the ceramic cover 2 is also provided with an exhaust pipe 7 made of copper material, and the lower part of the exhaust pipe 7 is positioned in the cavity 20; the lower part of the exhaust pipe 7 is also sleeved with a first conductor 81 which can slide along the exhaust pipe 7 in a vertical contact manner, the first conductor 81 is also connected with the movable assembly, and the first conductor 81 is in contact with the yoke plate 5 when the coil 6 is not operated; the yoke iron plate 5 is also provided with a second conductor 51; the exhaust pipe 7 and the second conductor 51 are respectively connected with a signal wire, so that the working state of the main contact is monitored.
In this embodiment, the first conductor 81 is a contact ring, the movable element 4 is provided with an insulating portion extending in the direction of the exhaust pipe 7 in the horizontal direction, and the movable element 4 drives the contact ring 81 to move through the insulating portion.
In this embodiment, the contact ring 81 is provided with a step 811 facing downward, the movable assembly 4 is provided with an insulating arm 43 (i.e., an insulating portion) extending in the exhaust pipe direction in the horizontal direction, and the insulating arm 43 is fitted to the step 811 of the contact ring 81 with a gap from bottom to top to drive the contact ring 81 to move upward away from contact with the yoke plate 5 when the movable assembly 4 moves upward.
In this embodiment, a compression spring 82 is further installed between the top end surface of the contact ring 81 and the top inner wall of the ceramic cover 2, and when the movable assembly 4 moves downward to make the insulating arm 43 leave the contact with the step of the contact ring 81, the compression spring 82 resets to drive the contact ring 81 to move downward to contact with the yoke plate 5 again.
In this embodiment, the second conductor 51 is a protrusion integrally formed on the yoke plate 5.
In this embodiment, the bracts 51 of the yoke plate are located outside the coverage area of the ceramic cover 2, a signal line 911 is sleeved on the bracts 51 of the yoke plate 5 through a connection terminal 912, and another signal line 921 is sleeved on the ceramic cover 2 through another connection terminal 922 and contacts the exhaust pipe 7.
In the present embodiment, the projection of the exhaust pipe 7 on the yoke plate 5 and the projection of the bract 51 of the yoke plate 5 on the yoke plate 5 are on the same side with respect to the connecting line between the two main terminals 3.
In this embodiment, the push rod part 41 includes a U-shaped bracket 413, a first fixing plate 414 and a push rod 415, one end of the push rod 415 is connected with the first fixing plate 414 through an injection molded plastic body 416 to form a whole, the other end of the push rod 415 is connected with a movable iron core 417 as a tail part 412 of the push rod part to be matched with the coil 6, two ends of the U-shaped bracket 413 face downwards and are respectively connected with the first fixing plate 414 extending towards two sides of the plastic body 416, the active spring 42 is installed in the U-shaped bracket 413 through a main spring 418 to form a head part 411 of the push rod part, one end of the main spring 418 pushes the active spring 42 towards the inner side of the top of the U-shaped bracket 413, and the other end of the main spring 418 is pushed against the plastic body 416; the insulating arm 43 is formed by the plastic body 416 extending in the direction of the exhaust pipe 7.
The utility model discloses a high-voltage direct current relay with detect main contact operating condition function has adopted and still cup jointed the first electric conductor 81 that can contact the slip from top to bottom along the blast pipe in the lower part of blast pipe 7, and this first electric conductor 81 still with move the assembly 4 and make the coil 6 when not working first electric conductor 81 with yoke iron plate 5 contacts; the yoke plate 5 is adopted and a second conductor 51 is also arranged; the exhaust pipe 7 and the second conductor 51 are connected to signal lines, respectively. The utility model discloses an utilize blast pipe 7, first electric conductor 81, yoke iron plate 5, second electric conductor 51 constitutes the detection return circuit of main contact operating condition, first electric conductor 81 and yoke iron plate 5 are equivalent to the normally closed auxiliary contact who is used for detecting the main contact, blast pipe 7 is equivalent to the supplementary end of drawing forth of last, second electric conductor 51 is equivalent to the supplementary end of drawing forth down, when the relay coil does not work, first electric conductor 81 contacts with yoke iron plate 5, the return circuit that the signal line is connected switches on, when relay coil during operation, first electric conductor 81 and yoke iron plate 5 contactless, the return circuit that the signal line is connected does not switch on, thereby realize monitoring main contact operating condition. The utility model discloses because make full use of blast pipe 7 and yoke board 5, can reach and realize the auxiliary contact function in order to realize the monitoring to the main contact action state in high-voltage direct current relay, the volume that can not increase high-voltage direct current relay product again is applied to in the occasion that the space is small in order to accord with the product.
The utility model discloses a high voltage direct current relay with detect main contact operating condition function has adopted and has designed first electric conductor 81 for contacting the ring, with yoke plate 5 go up the protruding bud 51 of integrative formation as the second electric conductor, has simple structure, characteristics with low costs, and because contact the top face of ring 81 with still be equipped with pressure spring 82 between the top inner wall of ceramic cover 2, utilize pressure spring 82 to play the reset action to contacting ring 81 on the one hand, on the other hand can improve the stability that contacts ring 81 and blast pipe 7 electricity are connected.
The foregoing is illustrative of the preferred embodiment of the present invention and is not to be construed as limiting the invention in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The technical solutions disclosed above can be used by those skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.
Claims (8)
1. A high-voltage direct-current relay with a function of detecting the working state of a main contact comprises a ceramic cover, a main leading-out end, a movable assembly, a yoke iron plate and a coil; the ceramic cover is matched on the yoke iron plate and encloses a cavity for accommodating the main contact; the two main leading-out ends are respectively arranged at the top of the ceramic cover, and the bottom ends which are respectively set as main stationary contacts are positioned in the cavity; the movable assembly comprises a pushing rod component and a driving spring arranged in the head part of the pushing rod component, the head part of the pushing rod component is matched in the cavity, and driving contacts arranged at two ends of the driving spring are correspondingly matched with main static contacts of two main leading-out ends; the tail end of the movable assembly penetrates through the yoke iron plate to be matched with a coil below the yoke iron plate so as to push the active spring to move to enable the contact to be contacted when the coil works; the top of the ceramic cover is also provided with an exhaust pipe made of copper material, and the lower part of the exhaust pipe is positioned in the cavity; the method is characterized in that: the lower part of the exhaust pipe is also sleeved with a first conductor which can slide along the exhaust pipe in a vertically contact manner, and the first conductor is also connected with the moving assembly and enables the first conductor to be in contact with the yoke plate when the coil does not work; the yoke iron plate is also provided with a second conductor; and the exhaust pipe and the second conductor are respectively connected with a signal wire, so that the working state of the main contact is monitored.
2. The HVDC relay with the function of detecting the working state of the main contact according to claim 1, wherein: the first electric conductor is a contact ring, the movable assembly is provided with an insulating part extending towards the exhaust pipe in the horizontal direction, and the movable assembly drives the contact ring to move through the insulating part.
3. The HVDC relay of claim 2, wherein the main contact state detection function is implemented by: the contact ring is provided with a downward step, the movable assembly is provided with an insulating arm extending towards the exhaust pipe in the horizontal direction, and the insulating arm is matched with the step of the contact ring from bottom to top in a clearance mode so as to drive the contact ring to move upwards to be separated from the contact with the yoke plate when the movable assembly moves upwards.
4. The HVDC relay of claim 3, wherein the main contact state detection function is characterized in that: and a pressure spring is further arranged between the top end surface of the contact ring and the inner wall of the top of the ceramic cover, and when the movable assembly moves downwards to enable the insulating arm to be separated from the contact with the step of the contact ring, the pressure spring resets to drive the contact ring to move downwards to be in contact with the yoke plate again.
5. The HVDC relay with the function of detecting the working state of the main contact according to claim 1, wherein: the second conductor is a convex bract integrally formed on the yoke plate.
6. The HVDC relay of claim 5, wherein the main contact state detection function is characterized in that: the convex bracts of the yoke iron plate are positioned outside the covered area of the ceramic cover, one signal wire is sleeved at the convex bracts of the yoke iron plate through one connecting terminal, and the other signal wire is sleeved and contacted at the exhaust pipe on the ceramic cover through the other connecting terminal.
7. The HVDC relay of claim 5, wherein the main contact state detection function is characterized in that: the projection of the exhaust pipe on the yoke iron plate and the projection of the convex bracts of the yoke iron plate on the yoke iron plate are positioned on the same side relative to a connecting line between the two main leading-out ends.
8. The HVDC relay of claim 3, wherein the main contact state detection function is characterized in that: the push rod part comprises a U-shaped support, a first fixing piece and a push rod, one end of the push rod is connected with the first fixing piece into a whole through an injection molding plastic body, the other end of the push rod is connected with a movable iron core to serve as the tail of the push rod part to be matched with a coil, two ends of the U-shaped support face downwards and are respectively connected with the first fixing pieces extending towards two sides of the plastic body, an active spring is arranged in the U-shaped support through a main spring to form the head of the push rod part, one end of the main spring enables the active spring to be propped against the inner side of the top of the U-shaped support, and the other end of the main spring is propped against the upper surface of the plastic; the insulating arm is formed by extending the plastic body towards the exhaust pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920733668.5U CN209859880U (en) | 2019-05-21 | 2019-05-21 | High-voltage direct-current relay with main contact working state monitoring function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920733668.5U CN209859880U (en) | 2019-05-21 | 2019-05-21 | High-voltage direct-current relay with main contact working state monitoring function |
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| CN209859880U true CN209859880U (en) | 2019-12-27 |
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| CN201920733668.5U Active CN209859880U (en) | 2019-05-21 | 2019-05-21 | High-voltage direct-current relay with main contact working state monitoring function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110211845A (en) * | 2019-05-21 | 2019-09-06 | 厦门宏发电力电器有限公司 | A kind of high voltage direct current relay with monitoring main contacts working condition function |
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2019
- 2019-05-21 CN CN201920733668.5U patent/CN209859880U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110211845A (en) * | 2019-05-21 | 2019-09-06 | 厦门宏发电力电器有限公司 | A kind of high voltage direct current relay with monitoring main contacts working condition function |
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