CN219476582U - High-voltage direct-current relay with auxiliary contact - Google Patents

Abstract

The utility model discloses a high-voltage direct-current relay with auxiliary contacts, which comprises an inner supporting cover, a main contact, the auxiliary contacts and a push rod component, wherein the main contact comprises a moving contact and two fixed contacts matched with the moving contact, the auxiliary contacts comprise auxiliary conductive pieces and two auxiliary leading-out ends matched with the auxiliary conductive pieces, the fixed contacts and the auxiliary leading-out ends are respectively penetrated through the top of the inner supporting cover, and the moving contact and the auxiliary conductive pieces are respectively arranged on the push rod component and are positioned in the inner supporting cover; the inner support cover is matched with the push rod component to form a limiting structure for limiting the push rod component to deflect. The utility model ensures that the push rod component does not deflect to one side in the product suction process, thereby avoiding the interference between the auxiliary conductive piece and the part of the inner support cover where the auxiliary leading-out end is fixed, ensuring the smooth action of the product and avoiding the breakage of the auxiliary conductive piece when the product is subjected to the mechanical life test because of the interference to the inner support cover.

Description

High-voltage direct-current relay with auxiliary contact

Technical Field

The utility model relates to a relay, in particular to a high-voltage direct-current relay with auxiliary contacts.

Background

The relay is an electronic control device, which is commonly applied to an automatic control circuit, and is actually an 'automatic switch' for controlling larger current by smaller current, so that the relay plays roles of automatic adjustment, safety protection, circuit switching and the like in the circuit.

The high-voltage direct current relay is one of the relays, the traditional high-voltage direct current relay is generally provided with only a main contact, when the coil assembly works, the movable iron core acts, the movable contact of the main contact is driven to move by the push rod component, two ends of the movable contact are contacted with two fixed contacts of the main contact, and a communication load loop is realized. In order to monitor the connection condition of the static contact, some high-voltage direct-current relays further comprise auxiliary contacts, wherein the auxiliary contacts comprise auxiliary conductive pieces and two auxiliary leading-out ends, the auxiliary conductive pieces are fixed with the push rod part, and the auxiliary conductive pieces move upwards along with the upward movement of the push rod part until contacting with the two auxiliary leading-out ends to output monitoring signals. However, such a high voltage dc relay with auxiliary contacts has the following disadvantages: the push rod part is in the product actuation in-process, receives the effect of reaction spring, and the push rod part can take place to deflect to one side, leads to the position that supplementary conducting element and interior supporting cover are fixed supplementary leading-out end to take place to interfere to be unfavorable for the smooth and easy action of product, even make the product carry out mechanical life test when, supplementary conducting element takes place to fracture.

Disclosure of Invention

Aiming at the technical problems existing in the prior art, the utility model provides a high-voltage direct-current relay with auxiliary contacts, which can prevent a push rod part from deflecting.

The technical scheme adopted for solving the technical problems is as follows: the high-voltage direct-current relay with the auxiliary contacts comprises an inner supporting cover, a main contact, the auxiliary contacts and a push rod component, wherein the main contact comprises a moving contact and two fixed contacts, and the moving contacts at two ends of the moving contact are respectively matched with the fixed contacts at the ends of the two fixed contacts correspondingly; the auxiliary contact comprises an auxiliary conductive piece and two auxiliary leading-out ends matched with the two ends of the auxiliary conductive piece, the fixed contact and the auxiliary leading-out ends are respectively penetrated through the top of the inner supporting cover, and the movable contact and the auxiliary conductive piece are respectively arranged on the push rod part and are positioned in the inner supporting cover; the inner support cover is matched with the push rod component to form a limiting structure for limiting the push rod component to deflect.

Further, the limiting structure comprises a convex part and a groove, the convex part is arranged on the push rod part, the groove is arranged on the inner supporting cover, or the convex part is arranged on the inner supporting cover, and the groove is arranged on the push rod part; the protrusion is located in the recess.

Further, the projection is in clearance fit with the recess and is in contact fit with the recess when the push rod member is deflected about its axis.

Further, when the push rod component deflects, the convex part and the groove are in line-surface contact fit.

Further, the groove is vertically communicated, and the cross section of the groove is U-shaped, inverted U-shaped, V-shaped or trapezoid or arc with an opening at the bottom; the profile of the cross section of the convex part is square or at least the end part is in a convex arc shape or a trapezoid shape or a triangle shape or a square shape with a round angle, the upper bottom of the trapezoid faces the groove, and one vertex angle of the triangle faces the groove.

Further, the groove is formed by a space between two convex ribs arranged at the position of the groove.

Further, the width of the cross section of the convex rib is gradually increased from outside to inside along the depth direction of the groove.

Further, the inside main contact chamber and the auxiliary contact chamber that separates each other that are equipped with of interior supporting cover, the moving contact is located main contact intracavity, auxiliary conductive piece is located auxiliary contact intracavity, partition wall between main contact chamber and the auxiliary contact chamber is equipped with the breach of stepping down, the catch bar part sets up the part of moving contact with set up between the part of auxiliary conductive piece set up with the portion of the breach adaptation of stepping down links the portion, prop up and link the portion and wear to locate the breach of stepping down, just prop up the both ends of linking the portion respectively to the direction in main contact chamber and auxiliary contact chamber extends.

Further, the branch connection part and the limit structure are positioned at two sides of the moving contact in the width direction, and the arrangement direction of the branch connection part and the limit structure is positioned in the width direction of the moving contact; the horizontal distance between the center point of the branch connection part and the center point of the moving contact in the width direction of the moving contact is larger than the horizontal distance between the center point of the branch connection part and the center point of the auxiliary conductive piece in the width direction of the moving contact.

Further, the push rod part comprises a spring seat, a push rod and a bracket, wherein the upper end of the push rod is fixed on the spring seat, the bracket is arranged on the spring seat, the moving contact is arranged in the bracket in a vertically movable manner, and a contact spring is matched between the moving contact and the spring seat; the auxiliary conductive piece is arranged on the spring seat and is positioned beside the bracket; the side surface of the spring seat, which is opposite to the auxiliary conductive piece, is provided with the convex part or the groove.

Compared with the prior art, the utility model has the following beneficial effects:

1. because the inner supporting cover is matched with the push rod component, the push rod component cannot deflect to one side in the product suction process, so that interference between the auxiliary conductive piece and the part of the inner supporting cover, where the auxiliary lead-out end is fixed, is avoided, smooth movement of the product is ensured, and breakage of the auxiliary conductive piece due to interference to the inner supporting cover during mechanical life test of the product is avoided.

2. The limiting structure comprises the convex part and the groove, so that the utility model realizes deflection limiting on the push rod component in a limited space inside the inner supporting cover by a simple structure.

3. The convex part is in clearance fit with the groove, and only when the push rod part deflects around the axis of the push rod part, the convex part is in contact fit with the groove, so that the push rod part can be ensured not to interfere with the inner support cover in the assembly process, and the push rod part can act more smoothly in a non-deflection state. Particularly, the convex part and the groove are in line-surface contact fit, so that the contact friction force of the convex part and the groove can be further reduced, and the smoothness of the product action is further improved.

4. The cross sections of the two opposite inner side surfaces of the groove are eight-shaped, so that the requirement of clearance fit between the groove and the convex part can be met, and friction can be reduced. The two ends of the convex part, which correspond to the two inner side faces opposite to the groove, are respectively set to be cambered surfaces, so that the contact area of the convex part and the groove when the push rod part deflects in the moving process can be reduced, friction is reduced, and the influence on the normal action of a product caused by scraping out plastic scraps is avoided.

5. The groove is formed by the interval between the two convex ribs arranged at the position where the groove is located, so that the strength of the side wall where the groove is located can be ensured, and the reduction of the thickness of the side wall at the position where the groove is located due to the fact that the groove is directly formed by partially hollowing out the side wall where the groove is located is avoided. Particularly, the width of the cross section of the convex rib is gradually increased from outside to inside along the depth direction of the groove, so that the strength of the convex rib is better, and the convex rib is easier to demould during injection molding.

6. The support connecting part matched with the abdication notch is arranged between the part of the push rod component, where the movable contact is arranged, and the part, where the auxiliary conductive piece is arranged, and the support connecting part penetrates through the abdication notch, so that the precision of limiting deflection of the push rod component can be improved by utilizing the cooperation of the support connecting part and the abdication notch. Particularly, the branch connection part and the limiting structure are positioned on two sides of the moving contact in the width direction, so that the limit formed by the branch connection part and the yielding notch and the limit of the limiting structure on the push rod part are ensured to be in the same direction, and the deflection limiting effect on the push rod part is better.

The utility model is described in further detail below with reference to the drawings and examples; the high voltage dc relay with auxiliary contacts of the present utility model is not limited to the embodiments.

Drawings

FIG. 1 is a cross-sectional view of the utility model of embodiment one;

FIG. 2 is a second cross-sectional view of the utility model of the first embodiment;

FIG. 3 is an exploded view of a partial structure of the present utility model according to one embodiment;

FIG. 4 is a schematic perspective view of a push rod unit and the like (including two auxiliary outlets and the like) according to an embodiment of the present utility model;

FIG. 5 is a top view of a push rod assembly and components thereon (without push rods) according to an embodiment of the present utility model;

FIG. 6 is a schematic perspective view of an inner support housing of the present utility model;

FIG. 7 is a bottom view of an inner support housing of the present utility model;

FIG. 8 is a bottom view of an embodiment of an inner support housing and push rod assembly portion of the present utility model in a combined state;

FIG. 9 is a cross-sectional view of an inner support housing and push rod assembly portion of the present utility model in a combined state;

FIG. 10 is a sectional view showing a combined state of an inner support cover and a push rod part portion of the present utility model according to the second embodiment;

FIG. 11 is a sectional view showing a combined state of an inner support cover and a push rod part portion of the present utility model according to the third embodiment;

FIG. 12 is a sectional view showing a combined state of an inner support cover and a push rod part portion of the present utility model according to the fourth embodiment;

FIG. 13 is a sectional view showing a combined state of an inner support cover and a push rod part portion of the present utility model according to a fifth embodiment;

FIG. 14 is a sectional view showing a combined state of an inner support cover and a push rod part portion of the sixth embodiment of the present utility model;

FIG. 15 is a sectional view showing a combined state of an inner support cover and a push rod part portion of the seventh embodiment of the present utility model;

FIG. 16 is a sectional view of an inner support housing and push rod assembly part of the eighth embodiment of the present utility model in a combined state;

FIG. 17 is a sectional view showing a combined state of an inner support cover and a push rod part portion of the ninth embodiment of the present utility model;

FIG. 18 is a cross-sectional view of the inner support housing and push rod assembly portion of the present utility model in a combined state;

FIG. 19 is a sectional view showing a combined state of an inner support cover and a push rod part portion of the eleventh embodiment of the present utility model;

FIG. 20 is a cross-sectional view of the inner support housing and push rod assembly portion of the present utility model in a combined state according to the twelve embodiments;

FIG. 21 is a cross-sectional view of the inner support housing and push rod assembly portion of the thirteenth embodiment of the present utility model in a combined state;

FIG. 22 is a sectional view showing a combined state of an inner support cover and a push rod part portion of the fourteenth embodiment of the present utility model;

FIG. 23 is a sectional view showing a combined state of an inner support cover and a push rod part portion of the fifteen present utility model;

FIG. 24 is a cross-sectional view showing a combined state of an inner support housing and push rod part portion of the present utility model according to sixteen embodiments;

FIG. 25 is a cross-sectional view showing a combined state of an inner support cover and a push rod part portion of the seventeenth embodiment of the present utility model;

FIG. 26 is a cross-sectional view of an inner support housing and push rod assembly portion of the eighteenth embodiment of the utility model in a combined state;

FIG. 27 is a sectional view showing a combined state of an inner support cover and a push rod part portion of the nineteenth embodiment of the present utility model;

FIG. 28 is a cross-sectional view of an inner support housing and push rod assembly portion of the present utility model in a combined state;

FIG. 29 is a cross-sectional view of a twenty-first embodiment of the present utility model with an inner support housing and push rod assembly portion in a combined condition;

FIG. 30 is a cross-sectional view of a twenty-second embodiment of the present utility model with an inner support housing and push rod assembly portion in a combined condition;

FIG. 31 is a cross-sectional view of a twenty-third embodiment of the utility model with the inner support housing and push rod assembly portion in a combined condition;

FIG. 32 is a cross-sectional view of a twenty-fourth embodiment of the present utility model with the push rod assembly portion in a combined state;

FIG. 33 is a cross-sectional view of a twenty-fifth embodiment of the utility model with the inner support housing and push rod assembly portion in a combined condition;

FIG. 34 is a cross-sectional view of a twenty-sixth embodiment of the utility model showing the inner support housing and push rod assembly portions in a combined condition;

FIG. 35 is a cross-sectional view of a twenty-seventh embodiment of the utility model with the push rod assembly portion in a combined state;

FIG. 36 is a cross-sectional view of a twenty-eighth embodiment of the present utility model with the push rod assembly portion in a combined state;

FIG. 37 is a cross-sectional view of a twenty-ninth embodiment of the utility model showing the inner support housing and push rod assembly in a partially assembled condition;

FIG. 38 is a cross-sectional view of an inner support housing and push rod assembly portion of the present utility model in a combined state;

FIG. 39 is a cross-sectional view of thirty-one inner support housing and push rod assembly portion of the present utility model in a combined state;

FIG. 40 is a cross-sectional view of thirty-two inner support housing and push rod assembly parts of the present utility model in a combined state;

fig. 41 is a sectional view showing a combined state of an inner support cover and a push rod part portion of the present utility model thirty-three.

Detailed Description

Example 1

Referring to fig. 1-9, the high-voltage dc relay with auxiliary contacts of the present utility model includes an inner supporting cover 1, a main contact, auxiliary contacts and a push rod component 4, wherein the main contact includes a moving contact 2 and two fixed contacts 3, the moving contact 2 is in a long sheet structure (therefore, the moving contact may also be referred to as a moving contact sheet, etc.), and the moving contacts at two ends (the moving contact and the moving contact are integrally formed, but not limited to) are respectively matched with the fixed contacts at the ends of the two fixed contacts 3 (the fixed contacts and the fixed contacts 3 are integrally formed, but not limited to) correspondingly; the auxiliary contact comprises an auxiliary conductive piece and two auxiliary leading-out ends 6 matched with the two ends of the auxiliary conductive piece, the fixed contact 3 and the auxiliary leading-out ends 6 are respectively penetrated at the top of the inner supporting cover 1, and the movable contact 2 and the auxiliary conductive piece are respectively arranged on the push rod part 4 and are positioned in the inner supporting cover 1; the inner support cover 1 is matched with the push rod part 4 to form a limiting structure for limiting the push rod part 4 to deflect. The limiting structure specifically comprises a convex part 421 and a groove 11 which is vertically penetrated, the convex part 421 is arranged on the pushing rod part 4, the groove 11 is arranged on the inner side surface of the inner supporting cover 1, the convex part 421 is arranged in the groove 11, the convex part 421 and the groove 11 are in clearance fit, and when the pushing rod part 4 deflects around the axis of the pushing rod part, the convex part 421 is in contact fit with the groove 11. In this way, the push rod member 4 can be ensured not to interfere with the inner support cover 1 during the assembly process, and the operation in the non-deflected state can be smoother.

In this embodiment, since the protruding portion 421 is in clearance fit with the groove 11, the distance between the two opposite inner sides of the groove 11 is greater than the distance between the two opposite outer sides of the protruding portion 421. In this way, the convex portion 421 and the concave groove 11 can realize single-sided contact when the push rod member 4 deflects, so as to reduce the contact friction force between the convex portion 421 and the concave groove 11 and enable the product to act more smoothly.

In this embodiment, the protruding portion 421 is in line-surface contact with the groove 11, so that the contact friction between the protruding portion 421 and the groove 11 can be further reduced, and the smoothness of the product operation can be further improved.

In this embodiment, the cross section of the groove 11 is in a trapezoid with an opening at the bottom, so that the cross sections of two opposite inner sides of the groove 11 are in an external eight type, thereby not only meeting the requirement of clearance fit between the groove 11 and the protrusion 421, but also ensuring friction reduction. The cross section profile of the protruding portion 421 is square, and two ends of the protruding portion, which are matched with two inner side surfaces opposite to the groove 11, are respectively provided with large fillets, so that the groove 11 and the protruding portion 421 are in line-surface contact fit, the purpose of further reducing the contact area between the protruding portion 421 and the groove 11 when the pushing rod component 4 deflects is achieved, friction is reduced, and plastic scraps can be prevented from being scraped to affect normal actions of products.

In this embodiment, the groove 11 is specifically formed by the space between two ribs 12 disposed at the location of the groove, so that the strength of the location of the groove 11 can be ensured, and the molding is easier. In particular, the width of the cross section of the rib 12 is gradually increased from outside to inside along the depth direction of the groove 11, so that not only can the strength of the rib 12 be ensured to be better, but also the rib 12 can be more easily demoulded during injection molding.

In this embodiment, the inside main contact chamber 13 and the auxiliary contact chamber 14 that separate each other that are equipped with of inner support cover 1, moving contact 2 is located main contact chamber 13, auxiliary conductive piece is located auxiliary contact chamber 14 is interior, the partition wall between main contact chamber 13 and the auxiliary contact chamber 14 is equipped with the breach of stepping down 15, push rod part 4 sets up moving contact 2's part with set up between the part of auxiliary conductive piece set up with the branch even portion 422 of breach of stepping down 15 adaptation, branch even portion 422 wears to locate step down breach 15, just the both ends of branch even portion 422 are respectively to the direction in main contact chamber 12 and auxiliary contact chamber 14 extends.

In this embodiment, the connection portion 422 and the protruding portion 421 of the limiting structure are located at two sides of the moving contact 2 in the width direction, and the connection line between the connection portion 422 and the protruding portion 421 is consistent with the width direction of the moving contact 2, as shown in fig. 5, so that it can be ensured that both the limit formed by the connection portion 422 and the yielding gap 15 and the limit of the limit structure on the push rod member 4 are located in the width direction of the moving contact, so that the deflection limiting effect on the push rod member 4 is better. The horizontal distance between the center point of the branch connection part 422 and the center point of the movable contact 2 in the width direction of the movable contact 2 is larger than the horizontal distance between the center point of the branch connection part 422 and the center point of the auxiliary conductive member in the width direction of the movable contact 2, so that when the push rod part 4 deflects by taking the branch connection part 422 as a fulcrum, the deflection displacement of the part of the push rod part 4 where the auxiliary conductive member is arranged is smaller.

In this embodiment, the push rod member 4 includes a spring seat 42, a push rod 41 and a bracket 43, the upper end of the push rod 41 is fixed on the spring seat 42, the bracket 43 is disposed on the spring seat 42, the moving contact 2 is disposed in the bracket 43 in a manner of being able to move up and down, and a contact spring 7 is matched between the moving contact 2 and the spring seat 42; the auxiliary conductive member is disposed on the spring seat 42 and located beside the bracket 43; the side surface of the spring seat 42, which is opposite to the auxiliary conductive member, is provided with the protruding portion 421. The auxiliary conductive member is specifically an auxiliary reed 5 capable of elastically deforming, which is approximately in a shape of a Chinese character 'ji', and the middle part of the auxiliary conductive member is fixed on the spring seat 42, and two ends of the auxiliary conductive member are respectively matched with the two auxiliary leading-out ends 6 correspondingly. The bracket 43 is in an inverted U shape, the spring seat 42 is made of an insulating material, and the auxiliary reed, the pushing rod 41 and two sides of the bracket 43 are respectively injection molded with the spring seat 42, but not limited thereto.

In this embodiment, the present utility model further includes a housing 8, a yoke cylinder 9, a coil assembly 50, a movable iron core 40, a yoke plate 20, a frame sheet 10, and a reaction spring 30, where the yoke cylinder is sleeved in the housing, the inner support cover 1 and the coil assembly 50 are vertically distributed in the yoke cylinder 9, the frame sheet 10 and the yoke plate 20 are sequentially disposed between them from top to bottom, the movable iron core 40 is movably disposed in the coil assembly 50 from top to bottom, the push rod 41 passes through the frame sheet 10 and the yoke plate 20, the lower end of the push rod 41 is fixedly connected with the movable iron core 40, and the reaction spring 30 is sleeved outside the push rod 41 and is stretched between the yoke plate 20 and the movable iron core 40.

In the high-voltage direct-current relay with auxiliary contacts of the utility model, before the contacts are attracted, the convex part 421 is in clearance fit with the groove 11, as shown in fig. 8 and 9. When the coil of the coil assembly 50 is energized, the movable iron core 40 moves upwards under the action of the magnetic field, compresses the counter-force spring 30 and drives the push rod component 4 to move upwards, and as the push rod component 4 moves upwards, the movable contact 2 moves upwards until contacting with the bottoms of the two fixed contacts 3, and the contact spring 713 is compressed; similarly, the auxiliary spring 5 moves upward along with the push rod member 4 until it contacts the two auxiliary terminals 6. In this process, the push rod component 4 has a tendency to deflect to one side under the action of the reaction spring 30, so that the convex portion 421 is in line-surface contact fit with one inner side surface of the groove 11, so that the push rod component 4 is deflected and limited, interference between the auxiliary reed and the part of the inner support cover 1, where the auxiliary leading-out end 6 is fixed, is avoided, smooth movement of a product is ensured, and breakage of the auxiliary reed 5 due to interference to the inner support cover 1 during a mechanical life test of the product is avoided.

Example two

Referring to fig. 10, the present utility model is a high voltage dc relay with auxiliary contacts, which is different from the first embodiment in that: the cross section of the groove 11 is in a U shape, and the groove can be in line-surface contact fit when in contact with the convex part 421.

Example III

Referring to fig. 11, a dc-dc relay with auxiliary contacts according to the present utility model is different from the first embodiment in that: the cross section of the groove 11 is arc-shaped.

Example IV

Referring to fig. 12, the present utility model is a high voltage dc relay with auxiliary contacts, which is different from the first embodiment in that: the cross section of the groove 11 is V-shaped, and the groove can be in line-surface contact fit when contacting with the convex portion 421.

Example five

Referring to fig. 13, the present utility model is a high voltage dc relay with auxiliary contacts, which is different from the fourth embodiment in that: the cross section of the groove 11 is V-shaped, and the included angles of the two sides of the V-shaped are larger, and the groove 11 can be in line-surface contact fit when contacting with the convex 421.

Example six

Referring to fig. 14, the present utility model is a high voltage dc relay with auxiliary contacts, which is different from the first embodiment in that:

the cross section of the protruding portion 421 is square, and two ends of the protruding portion, which are used for being matched with two inner side surfaces opposite to the groove 11, are respectively provided with small fillets, so that line-surface contact matching can be achieved when the groove 11 is in contact with the protruding portion 421.

Example seven

Referring to fig. 15, the present utility model is a high voltage dc relay with auxiliary contacts, which is different from the sixth embodiment in that:

the cross section of the groove 11 is U-shaped.

Example eight

Referring to fig. 16, the present utility model is a high voltage dc relay with auxiliary contacts, which is different from the sixth embodiment in that: the cross section of the groove 11 is arc-shaped.

Example nine

Referring to fig. 17, the present utility model is a high voltage dc relay with auxiliary contacts, which is different from the sixth embodiment in that:

the cross section of the groove 11 is V-shaped, and the included angles of the two sides of the V-shaped are larger, and the groove 11 can be in line-surface contact fit when contacting with the convex 421.

Examples ten

Referring to fig. 18, a dc-dc relay with auxiliary contacts according to the present utility model is different from the first embodiment in that:

the cross section of the convex portion 421 has a trapezoid shape, and the upper bottom of the trapezoid faces the groove 11.

Example eleven

Referring to fig. 19, the present utility model is a high voltage dc relay with auxiliary contacts, which is different from the above embodiment in that: the cross section of the groove 11 is U-shaped.

Example twelve

Referring to fig. 20, the present utility model is a high voltage dc relay with auxiliary contacts, which is different from the above embodiment in that: the cross section of the groove 11 is arc-shaped.

Example thirteen

Referring to fig. 21, the present utility model is a high voltage dc relay with auxiliary contacts, which is different from the above embodiment in that: the cross section of the groove 11 is V-shaped, and the included angles of the two sides of the V-shaped are larger.

Examples fourteen

Referring to fig. 22, a dc-dc relay with auxiliary contacts according to the present utility model is different from the first embodiment in that:

the cross section of the protruding portion 421 has a triangular shape, and one vertex of the triangle faces the recess 11.

Implementation of fifteen

Referring to fig. 23, a dc-dc relay with auxiliary contacts according to the present utility model is different from the above-mentioned fourteen embodiments in that: the cross section of the groove 11 is U-shaped.

Examples sixteen

Referring to fig. 24, the present utility model is a high voltage dc relay with auxiliary contacts, which is different from the fourteen embodiments described above in that: the cross section of the groove 11 is arc-shaped.

Example seventeen

Referring to fig. 25, the present utility model is a high voltage dc relay with auxiliary contacts, which is different from the fourteen embodiments described above in that: the cross section of the groove 11 is V-shaped, and the included angles of the two sides of the V-shaped are larger.

Example eighteen

Referring to fig. 26, the present utility model is a high voltage dc relay with auxiliary contacts, which is different from the above embodiments in that: the protruding portion 421 is disposed on the inner support cover 1, the recess 11 is disposed on the push rod member 4, specifically, a side surface of the spring seat 42 opposite to the side of the auxiliary conductive member is provided with the recess 11, and the recess 11 is also formed by a space between two protruding ribs 12 disposed on a location where the recess is located.

In this embodiment, the cross section of the groove 11 is trapezoidal with an open bottom, the profile of the cross section of the protrusion 421 is square, and two ends of the protrusion, which are matched with two opposite inner sides of the groove 11, are respectively provided with small fillets, so that the groove 11 can be in line-surface contact fit with the protrusion 421, and the purposes of further reducing the round fillets of the protrusion 421 and the contact area of the groove 11 when the push rod component 4 deflects are achieved, thereby reducing friction, and avoiding scraping out plastic scraps to affect the normal action of the product.

Examples nineteenth

Referring to fig. 27, the present utility model is a high voltage dc relay with auxiliary contacts, which is different from the above-mentioned embodiments in that: the cross section of the groove 11 is U-shaped.

Example twenty

Referring to fig. 28, a dc-dc relay with auxiliary contacts according to the present utility model is different from the above-mentioned fourteen embodiments in that: the cross section of the groove 11 is arc-shaped.

Example twenty-one

Referring to fig. 29, a dc-dc relay with auxiliary contacts according to the present utility model is different from the above-mentioned fourteen embodiments in that: the cross section of the groove 11 is V-shaped.

Examples twenty two

Referring to fig. 30, the present utility model is a high voltage dc relay with auxiliary contacts, which is different from the above-mentioned embodiments in that: the cross section of the convex portion 421 has a trapezoid shape, and the upper bottom of the trapezoid faces the groove 11.

Examples twenty-three

Referring to fig. 31, a dc-dc relay with auxiliary contacts according to the present utility model is different from the twenty-second embodiment in that: the cross section of the groove 11 is U-shaped.

Examples twenty-four

Referring to fig. 32, a dc-dc relay with auxiliary contacts according to the present utility model is different from the twenty-second embodiment in that: the cross section of the groove 11 is arc-shaped.

Examples twenty-five

Referring to fig. 33, a dc-dc relay with auxiliary contacts according to the present utility model is different from the second embodiment in that: the cross section of the groove 11 is V-shaped.

Examples twenty-six

Referring to fig. 34, the present utility model is a high voltage dc relay with auxiliary contacts, which is different from the above-mentioned embodiments in that: the cross section of the protruding portion 421 has a triangular shape, and one vertex of the triangle faces the recess 11.

Examples twenty-seven

Referring to fig. 35, the present utility model is a high voltage dc relay with auxiliary contacts, which is different from the twenty-sixth embodiment in that: the cross section of the groove 11 is U-shaped.

Examples twenty-eight

Referring to fig. 36, the present utility model is a high voltage dc relay with auxiliary contacts, which is different from the twenty-sixth embodiment in that: the cross section of the groove 11 is arc-shaped.

Examples twenty-nine

Referring to fig. 37, the present utility model is a high voltage dc relay with auxiliary contacts, which is different from the twenty-sixth embodiment in that: the cross section of the groove 11 is V-shaped.

Example thirty

Referring to fig. 38, a dc-dc relay with auxiliary contacts according to the present utility model is different from the above-mentioned embodiments in that: the cross section of the protruding portion 421 has a convex arc shape.

Example thirty-one

Referring to fig. 39, a dc-dc relay with auxiliary contacts according to the present utility model is different from the above-mentioned embodiment in that: the cross section of the groove 11 is U-shaped.

Example thirty-two

Referring to fig. 40, a dc-dc relay with auxiliary contacts according to the present utility model is different from the above-mentioned embodiment in that: the cross section of the groove 11 is arc-shaped.

Example thirty-three

Referring to fig. 41, the present utility model is a high voltage dc relay with auxiliary contacts, which is different from the above embodiment thirty in that: the cross section of the groove 11 is V-shaped.

The high-voltage direct-current relay with the auxiliary contacts is the same as or can be realized by adopting the prior art in no part.

The above embodiment is only used to further illustrate a high-voltage dc relay with auxiliary contacts, but the present utility model is not limited to the embodiment, and any simple modification, equivalent variation and modification of the above embodiment according to the technical substance of the present utility model falls within the protection scope of the technical solution of the present utility model.

Claims (10)

1. The high-voltage direct-current relay with the auxiliary contacts comprises an inner supporting cover, a main contact, the auxiliary contacts and a push rod component, wherein the main contact comprises a moving contact and two fixed contacts, and the moving contacts at two ends of the moving contact are respectively matched with the fixed contacts at the ends of the two fixed contacts correspondingly; the auxiliary contact comprises an auxiliary conductive piece and two auxiliary leading-out ends matched with the two ends of the auxiliary conductive piece, the fixed contact and the auxiliary leading-out ends are respectively penetrated through the top of the inner supporting cover, and the movable contact and the auxiliary conductive piece are respectively arranged on the push rod part and are positioned in the inner supporting cover; the method is characterized in that: the inner support cover is matched with the push rod component to form a limiting structure for limiting the push rod component to deflect.

2. The high voltage direct current relay with auxiliary contacts according to claim 1, wherein: the limiting structure comprises a convex part and a groove, the convex part is arranged on the push rod part, the groove is arranged on the inner supporting cover, or the convex part is arranged on the inner supporting cover, and the groove is arranged on the push rod part; the protrusion is located in the recess.

3. The high voltage direct current relay with auxiliary contacts according to claim 2, wherein: the projection is in clearance fit with the recess and is in contact fit with the recess when the push rod member is deflected about its axis.

4. A high voltage dc relay with auxiliary contacts according to claim 3, wherein: when the push rod component deflects, the convex part is in line-surface contact fit with the groove.

5. The high voltage direct current relay with auxiliary contacts according to any one of claims 2-4, wherein: the groove is communicated up and down, and the cross section of the groove is in a U shape or a V shape or a trapezoid or an arc shape with an opening at the bottom; the profile of the cross section of the convex part is square or at least the end part is in a convex arc shape or a trapezoid shape or a triangle shape or a square shape with a round angle, the upper bottom of the trapezoid faces the groove, and one vertex angle of the triangle faces the groove.

6. The high voltage direct current relay with auxiliary contacts according to any one of claims 2-4, wherein: the groove is formed by the interval between two convex ribs arranged at the position of the groove.

7. The high voltage dc relay with auxiliary contacts as claimed in claim 6, wherein: the width of the cross section of the convex rib is gradually increased from outside to inside along the depth direction of the groove.

8. The high voltage direct current relay with auxiliary contacts according to any one of claims 1 to 4, wherein: the inner support cover is internally provided with a main contact cavity and an auxiliary contact cavity which are mutually separated, the moving contact is positioned in the main contact cavity, the auxiliary conductive part is positioned in the auxiliary contact cavity, a separation wall between the main contact cavity and the auxiliary contact cavity is provided with a yielding gap, the push rod part is provided with a part of the moving contact and a part of the auxiliary conductive part, a branch connecting part matched with the yielding gap is arranged between the parts of the moving contact and the auxiliary conductive part, the branch connecting part is arranged in the yielding gap in a penetrating mode, and two ends of the branch connecting part extend towards the directions of the main contact cavity and the auxiliary contact cavity respectively.

9. The high voltage dc relay with auxiliary contacts as claimed in claim 8, wherein: the branch connection part and the limit structure are positioned at two sides of the moving contact in the width direction, and the arrangement direction of the branch connection part and the limit structure is positioned in the width direction of the moving contact; the horizontal distance between the center point of the branch connection part and the center point of the moving contact in the width direction of the moving contact is larger than the horizontal distance between the center point of the branch connection part and the center point of the auxiliary conductive piece in the width direction of the moving contact.

10. The high voltage direct current relay with auxiliary contacts according to any one of claims 2-4, wherein: the push rod part comprises a spring seat, a push rod and a bracket, wherein the upper end of the push rod is fixed on the spring seat, the bracket is arranged on the spring seat, the moving contact is arranged in the bracket in a vertically movable manner, and a contact spring is matched between the moving contact and the spring seat; the auxiliary conductive piece is arranged on the spring seat and is positioned beside the bracket; the side surface of the spring seat, which is opposite to the auxiliary conductive piece, is provided with the convex part or the groove.