CN217214600U - Electromagnetic relay capable of rapidly extinguishing arc - Google Patents
Electromagnetic relay capable of rapidly extinguishing arc Download PDFInfo
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- CN217214600U CN217214600U CN202220536502.6U CN202220536502U CN217214600U CN 217214600 U CN217214600 U CN 217214600U CN 202220536502 U CN202220536502 U CN 202220536502U CN 217214600 U CN217214600 U CN 217214600U
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Abstract
The utility model discloses an electromagnetic relay that can quick arc extinguishing, including base, casing, magnetic circuit mechanism, actuating mechanism and contact mechanism, contact mechanism includes stationary reed and the movable contact spring that corresponds with it, the stationary reed is equipped with the stationary contact, be equipped with the movable contact on the movable contact spring, it still includes magnetic conduction connecting piece and two magnet steels, the magnetic conduction connecting piece includes two parallel support arms and connects the middle support arm of two support arms, two support arm inboards respectively with a magnet steel connection, magnetic conduction connecting piece and two magnet steels set up in the casing body outside and form with the casing body and link firmly together, two magnet steels are in respectively the contact mechanism both sides, the magnetic pole direction of each magnet steel reaches the middle support arm medial surface is perpendicular with the current direction when the movable contact contacts with the stationary contact point, the polarity of two magnet steel opposite faces is set to opposite; the utility model discloses effectively strengthen quick arc extinguishing effect, and do not influence the arc extinguishing space of former contact mechanism.
Description
Technical Field
The utility model belongs to the technical field of the electromagnetic relay makes technique and specifically relates to an electromagnetic relay of ability quick arc extinguishing.
Background
All can be equipped with contact mechanism in current electromagnetic relay, contact mechanism is applied to direct current control when, when electric current and voltage reach a definite value, the contact of relay produces electric arc easily when the disconnection, electric arc has the heat effect, lead to contact ablation bonding easily, still can ablate the working of plastics around the contact, make working of plastics surface carbonization, the splash of electric arc can cover on the working of plastics simultaneously, make the surface insulation of working of plastics descend, thereby arouse the product failure, the life-span of relay has been shortened greatly. Therefore, rapid arc extinction when the contact is opened is an important technical problem.
People now understand that the technical effect of rapidly extinguishing arc by adding the magnetic steel on the relay can assist in lengthening the electric arc can be realized, for example, a Chinese utility model patent with the patent number of ZL201520459636.2 and the name of high-voltage direct-current relay is disclosed in 11/18/2015, and the Chinese utility model patent comprises a shell, a magnetic circuit part, a contact part and a base; the contact part comprises a movable spring part and a static spring part, the movable spring part adopts a bridge structure, two movable contacts on a movable spring are correspondingly matched with static contacts on two static springs for current inflow and current outflow respectively, and the movable spring is linked with the magnetic circuit part so as to separate or contact the movable contacts and the static contacts when the magnetic circuit part works; and magnetic steels are respectively arranged on the upper part of the shell and corresponding to the side walls at the two ends of the movable reed, the magnetic steels at the side walls at the two ends of the movable reed respectively correspond to the contact gaps at the two ends of the movable reed, and the magnetic field direction of the magnetic steels at the side walls at the two ends of the movable reed is parallel to the current flowing direction of the movable reed. Although the direct current relay adopts the two corresponding magnetic steels for auxiliary arc extinction, the mutual enhancement effect of the magnetic field intensity generated by the two magnetic steels can be influenced due to the reasons of installation error and the like, and the arc extinction effect can also be influenced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an electromagnetic relay of ability quick arc extinguishing, its effective quick arc extinguishing effect of reinforcing, and do not influence the arc extinguishing space of former contact mechanism.
In order to achieve the above purpose, the technical scheme of the utility model is that: the magnetic circuit mechanism, the driving mechanism and the contact mechanism are arranged on the base, the shell comprises a shell body, the shell body is connected with the base and covers the magnetic circuit mechanism, the driving mechanism and the contact mechanism, the contact mechanism comprises a static reed and a movable reed corresponding to the static reed, the static reed is provided with a static contact, the movable reed is provided with a movable contact, the driving mechanism is actuated by magnetic force generated by the magnetic circuit mechanism, the driving mechanism drives the movable reed to actuate so that the movable contact is jointed with or separated from the static contact, the magnetic circuit mechanism further comprises a magnetic conduction connecting piece and two magnetic steels, the magnetic conduction connecting piece comprises two parallel support arms and a middle support arm connecting the two support arms, the inner sides of the two support arms are respectively connected with one magnetic steel, the magnetic conduction connecting piece and the two magnetic steels are arranged on the outer side of the shell body and fixedly connected with the shell body, and the two magnetic steels are respectively arranged on two sides of the contact mechanism, the magnetic pole direction of each magnetic steel and the current direction when the inner side surface of the middle supporting arm is in contact with the movable contact and the fixed contact are vertical to each other, and the polarities of the opposite surfaces of the two magnetic steels are set to be opposite.
The further improvement, the inboard department of being close to every support arm of middle support arm all is equipped with a plurality of spacing convex parts, and a plurality of spacing convex parts are spacing for magnet steel one side. Through spacing convex part limiting action, avoid the side direct contact of the middle support arm of magnetic conduction connecting piece and magnet steel, increase the clearance between middle support arm medial surface and the magnet steel, increase air magnetic resistance, avoid the magnetic line of force from the N utmost point to the S utmost point of magnet steel to be lost. Further preferably the spacing convex part is arc form, the inboard every support arm department of being close to of middle support arm all is equipped with two spacing convex parts, and two spacing convex parts are highly the same.
Preferably, the base is provided with two static reeds and two movable reeds side by side, the leading-out pins of the two static reeds extend out from the lower surface of the base, and the leading-out pins of the two movable reeds also extend out from the lower surface of the base;
the magnetic circuit mechanism comprises a coil framework, an iron core, an L-shaped yoke and an L-shaped armature, wherein the coil framework is fixedly connected to a base along the vertical direction, a coil is arranged on the coil framework, the iron core penetrates through a through hole in the middle of the coil framework, one end of the L-shaped yoke is fixedly connected with the lower end of the iron core, the outer side of the L-shaped yoke is fixedly connected with the lower end of a pressure spring piece, the upper end of the pressure spring piece presses the L-shaped armature, so that one end of the L-shaped armature is close to the L-shaped yoke, when the coil is electrified, the other end of the L-shaped armature is attracted with the other end of the iron core, and when the coil is deenergized, the other end of the L-shaped armature is separated from the other end of the iron core;
the driving mechanism comprises a pushing piece, the pushing piece comprises a body, one side of the body is provided with a connecting part connected with one end of an L-shaped armature, the other side of the body is provided with two parallel pushing parts, and when the other end of the L-shaped armature is attracted with the other end of the iron core, the two pushing parts respectively push two movable contacts on two movable spring pieces to be attracted with two static contacts on two static spring pieces; when the other end of the L-shaped armature is separated from the other end of the iron core, the two movable springs are reset, and the two movable contacts are separated from the two fixed contacts;
the base is provided with two support sheets side by side, one end of each movable reed leans against one support sheet when the movable reed is reset, each support sheet is also provided with a guide through hole, and each pushing part penetrates through one guide through hole. Through the supporting effect of the two supporting sheets, the movable reed can be prevented from falling backwards and deforming by taking the pushing point as a fulcrum when falling, and the gap between the movable contact and the static contact is more stable in the working process.
In a further improvement, a U-shaped groove is formed on the outer side of the shell body and close to the periphery of the contact mechanism, and the magnetic conduction connecting piece and the two magnetic steels are arranged on the U-shaped groove together. The mounting structure is convenient for the magnetic conduction connecting piece and the two magnetic steels to form and fixedly connect with the shell body.
Preferably, the housing body is substantially square, a U-shaped horizontal bottom plate is formed on the left side, the right side and the front side of the housing body close to the contact mechanism, the outer edge of the U-shaped horizontal bottom plate extends upwards to form an upper vertical coaming, and the U-shaped horizontal bottom plate, the upper vertical coaming and the outer side face of the housing body part jointly enclose the U-shaped groove.
The improved structure is characterized in that the improved structure is further improved, each support arm is provided with a clamping hole, a first clamping hook is arranged on the inner side of the upper vertical enclosing plate close to each support arm, and each first clamping hook is clamped with one clamping hole. The magnetic conduction connecting piece is convenient to be connected with the upper vertical coaming.
In a further improvement, a cover body is matched with the shell body to cover the magnetic conduction connecting piece and the part of the two magnetic steels outside the U-shaped groove. Therefore, the magnetic conduction connecting piece and the two magnetic steels are protected through the cover body, the stability degree of the magnetic conduction connecting piece and the two magnetic steels fixedly connected with the shell body is enhanced, and the installation is convenient.
The improved structure is characterized in that each magnetic steel is close to one side of the cover body, a matching groove is formed in one side of the cover body, the matching groove deviates from the middle section of the magnetic steel along the magnetic pole direction, the inner side of the cover body is close to each matching groove, a matching convex part is arranged at the position of the matching groove, and each matching convex part is connected with one matching groove in a clamped mode. Therefore, the mounting device has the fool-proof function during mounting, and the mounting accuracy of the two magnetic steel poles is ensured.
The inner side of the cover body is provided with a second clamping hook close to each support arm, and each second clamping hook is also clamped with one clamping hole; the upper vertical coaming is provided with a first open slot on two sides of each first hook, and the cover body is provided with a second open slot on two sides of each second hook. The cover body is convenient to be connected with the magnetic conduction connecting piece, the first clamping hook and the second clamping hook can elastically deform, and the cover body and the upper vertical coaming are prevented from cracking during installation.
Preferably, the cover body comprises a U-shaped top plate, and a lower vertical coaming extends downwards from the U-shaped top plate close to the periphery of the outer side; a concave yielding area is arranged on one side, close to the U-shaped groove, of the upper end surface of the shell body, and the concave yielding area is matched with the cover body, so that the upper end surface of the cover body and the upper end surface of the shell body are located on the same plane; go up vertical bounding wall inboard and be equipped with a plurality of protruding muscle down being close to every magnet steel side department, the lid is equipped with a plurality of protruding muscle of going up being close to every magnet steel side department, and a plurality of protruding muscle of going up block the support arm with a plurality of protruding muscle down jointly. Therefore, the whole shell has a compact structure and is attractive. And the cover body can be matched with the magnetic conduction connecting piece more tightly.
The utility model discloses owing to still include magnetic conduction connecting piece and two magnet steels, the magnetic conduction connecting piece includes two parallel support arms and connects the middle support arm of two support arms, and two support arm inboards respectively with a magnet steel connection, magnetic conduction connecting piece and two magnet steels set up together in the casing body outside and form with the casing body and link firmly, two magnet steels are in respectively contact mechanism both sides, the magnetic pole direction of every magnet steel reaches the middle support arm medial surface with the movable contact with current direction when the stationary contact is contacted is mutually perpendicular, and the polarity of two magnet steel opposite faces is established to opposite. Therefore, magnetic fields generated by the two magnetic steels are transmitted through the magnetic conduction connecting piece to form a closed loop, the two magnetic fields are effectively superposed and concentrate magnetic flux to the contact position of the movable contact and the fixed contact, and electric arcs generated when the movable contact and the fixed contact are disconnected can be quickly stretched towards the direction parallel to the inner side surface of the middle supporting arm, so that quick arc extinction is realized. Therefore, the arc extinguishing effect can be effectively enhanced.
In addition, because the electric arc is stretched to the direction parallel to the inner side surface of the middle supporting arm, the middle supporting arm of the magnetic conduction connecting piece can not occupy the arc extinguishing space of the original relay shell body, and the arc extinguishing space of the original contact mechanism is not influenced.
Drawings
FIG. 1 is a perspective view of the present invention;
fig. 2 is an exploded perspective view of the present invention;
FIG. 3 is an enlarged view at A of FIG. 2;
fig. 4 is a top view of the present invention;
FIG. 5 is a cross-sectional view B-B of FIG. 4;
FIG. 6 is a cross-sectional view C-C of FIG. 4;
fig. 7 is a perspective view of the housing of the present invention;
FIG. 8 is an enlarged view at D of FIG. 7;
fig. 9 is a perspective view of the magnetic conductive connecting piece of the present invention;
fig. 10 is a perspective view of the magnetic conductive connecting piece and two magnetic steels of the present invention connected with each other;
fig. 11 is a bottom perspective view of the cover of the present invention;
fig. 12 is a schematic diagram of the arc extinguishing state of the present invention;
fig. 13 is a schematic diagram of an electrical connection power supply and a load for two leading pins of the movable spring piece and two leading pins of the static spring piece of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 to 11 show that an electromagnetic relay capable of rapidly extinguishing arc includes a base 1, a casing 2, a magnetic circuit mechanism 3, a driving mechanism 4, a contact mechanism 5, a magnetic conductive connecting piece 6, two magnetic steels 7 and a cover 8, wherein the magnetic circuit mechanism 3, the driving mechanism 4 and the contact mechanism 5 are mounted on the base 1, the casing 2 includes a casing body 2a, and the casing body 2a is connected to the base 1 and covers the magnetic circuit mechanism 3, the driving mechanism 4 and the contact mechanism 5.
The contact mechanism 5 comprises a static spring 51 and a movable spring 52 corresponding to the static spring 51, two static springs 51 and two movable springs 52 are arranged on the base 1 side by side, each static spring 51 is provided with a static contact 511, each movable spring 52 is provided with a movable contact 521, two static spring leading-out pins 512 extend out from the lower surface of the base 1, and two movable spring leading-out pins 522 also extend out from the lower surface of the base 1; the magnetic force generated by the magnetic circuit mechanism 3 actuates the driving mechanism 4, and the driving mechanism 4 drives the movable spring piece 52 to actuate, so that each movable contact 521 is engaged with or disengaged from one of the fixed contacts 511.
The magnetic circuit mechanism 3 comprises a coil framework 31, an iron core 32, an L-shaped yoke 33 and an L-shaped armature 34, wherein the coil framework 31 is vertically and fixedly connected to the base 1, a coil 310 is arranged on the coil framework 31, the iron core 32 penetrates through a through hole in the middle of the coil framework 31, two coil leading-out pins 311 extend out from the lower surface of the base 1, one end of the L-shaped yoke 33 is fixedly connected with the lower end of the iron core 32, the outer side of the L-shaped yoke 33 is fixedly connected with the lower end of a metal pressure spring 35, the upper end of the pressure spring 35 penetrates through a through hole 341 in the middle of the L-shaped armature 34 and then presses the L-shaped armature 34, so that one end of the L-shaped armature 34 is close to the L-shaped yoke 33, the connection part of the two ends of the L-shaped armature 34 is close to the upper end of the L-shaped armature 34, when the coil 310 is electrified, the other end of the L-shaped armature 34 is attracted with the other end of the iron core 32, and when the coil 310 is deenergized, the other end of the L-shaped armature 34 is separated from the other end of the iron core 32;
the driving mechanism 4 comprises a pushing part 41, the pushing part 41 comprises a body 410, one side of the body 410 is provided with a connecting part 411 connected with one end of the L-shaped armature 34, the other side of the body is provided with two parallel pushing parts 412, and when the other end of the L-shaped armature 34 is attracted with the other end of the iron core 32, the two pushing parts 412 respectively push two moving contacts 521 on two moving spring pieces 52 to be attracted with two static contacts 511 on two static spring pieces 51; when the other end of the L-shaped armature 34 is separated from the other end of the iron core 32, the two movable springs 52 are reset, and the two movable contacts 521 are separated from the two fixed contacts 511.
Two support sheets 9 are arranged side by side on the base 1, one end of each movable spring 52 leans against one support sheet 9 when being reset, each support sheet 9 is also provided with a guide through hole 91, and each pushing part 412 penetrates through one guide through hole 91. The guide through hole 91 guides the pushing portion 412 by limiting both side surfaces thereof. The support function of the two support pieces 9 prevents the movable spring 52 from falling and deforming backwards with the pushing point as a fulcrum when falling, and makes the gap between the movable contact 521 and the fixed contact 511 more stable during the working process.
The magnetic conduction connecting piece 6 comprises two parallel support arms 61 and a middle support arm 62 connected with the two support arms 61, the inner sides of the two support arms 61 are respectively connected with one magnetic steel 7, the magnetic conduction connecting piece 6 and the two magnetic steels 7 are arranged on the outer side of the shell body 2a together and are fixedly connected with the shell body 2a, the two magnetic steels 7 are respectively arranged on two sides of the contact mechanism 5, the magnetic pole direction of each magnetic steel 7 is perpendicular to the current direction when the inner side surface of the middle support arm 62 is contacted with the movable contact 521 and the fixed contact 511, and the polarities of the opposite surfaces of the two magnetic steels 7 are opposite.
The magnetic conduction connecting piece 6 and the specific connecting structure of the two magnetic steels 7 and the shell body 2a are as follows: a U-shaped groove 21 is formed on the outer side of the shell body 2a close to the periphery of the contact mechanism 5, and the magnetic conduction connecting piece 6 and the two magnetic steels 7 are installed on the U-shaped groove 21 together. The specific forming structure of the U-shaped groove 21 is as follows: the housing body 2a is substantially square, a U-shaped horizontal bottom plate 211 is formed on the left side, the right side and the front side of the housing body 2a close to the contact mechanism 5, the outer edge of the U-shaped horizontal bottom plate 211 extends upwards to form an upper vertical surrounding plate 212, and the U-shaped horizontal bottom plate 211, the upper vertical surrounding plate 212 and part of the outer side of the housing body 2a jointly surround the U-shaped groove 21.
Each support arm 61 is provided with a clamping hole 611, the inner side of the upper vertical enclosing plate 212 is provided with a first clamping hook 21a near each support arm 61, and each first clamping hook 21a is clamped with one clamping hole 611. The upper vertical enclosing plate 212 is provided with first slots 21b at two sides of each first hook 21 a. So that the first hooks 21a can elastically deform to be clamped into the clamping holes 611, and the upper vertical enclosing plate 212 is prevented from cracking.
The inner side of the middle supporting arm 62 is provided with two limiting convex parts 621 at the position close to each supporting arm 61, and the two limiting convex parts 621 limit one side of the magnetic steel 7. Preferably, the limiting convex parts 621 are arc-shaped, two limiting convex parts 621 are arranged on the inner side of the middle supporting arm 62 near each supporting arm 61, and the heights of the two limiting convex parts 621 are the same. Through spacing convex part 621 limiting displacement, avoid middle support arm 62 and magnet steel 7 'S side direct contact, increase the clearance between middle support arm 62 medial surface and the magnet steel 7, increase air magnetic resistance, avoid the magnetic line of force by the loss of the magnetic steel 7' S the N utmost point to the S utmost point.
And a cover body 8 is matched with the shell body 2 to cover the magnetic conduction connecting piece 6 and the part of the two magnetic steels 7 outside the U-shaped groove 21.
Every magnet steel 7 is close to 8 one side of lid are equipped with cooperation recess 71, and the skew magnet steel 7 of cooperation recess 71 is along the middle section of magnetic pole direction, and 8 inboard sides of lid are close to every cooperation recess 71 department is equipped with cooperation convex part 83, every cooperation convex part 83 and a cooperation recess 71 looks joint. So as to prevent the magnetic pole direction error of the magnetic steel 7 and have the fool-proof function.
The inner side of the cover body 8 is provided with a second hook 8a near each support arm 61, and each second hook 8a is also clamped with one clamping hole 611. Every on the lid 8 second pothook 8a both sides all are equipped with second fluting 8b to second pothook 8a also can elastic deformation when guaranteeing to assemble with joint hole 611, lid 8 ftractures when preventing to push in.
The lid 8 includes a U-shaped top panel 81 with a vertical shroud 82 extending downwardly from the U-shaped top panel 81 adjacent the outer periphery thereof. A concave relief area 2b is arranged on one side, close to the U-shaped groove 21, of the upper end face of the shell body 2a, and the concave relief area 2b is matched with a U-shaped top plate 81 of the cover body 8, so that the upper end face of the cover body 8 and the upper end face of the shell body 2 are basically in the same plane; go up vertical bounding wall 212 inboard and be equipped with two lower protruding muscle 21c near every magnet steel 7 side department, lid 8 is equipped with two upper protruding muscle 8c near every magnet steel 7 side department, and two upper protruding muscle 8c block with two lower protruding muscle 21c jointly the support arm 61. Thus, the upper convex rib 8c and the second hook 8a are mutually matched to ensure that the cover body 8 and the magnetic conduction connecting piece 6 are matched more tightly; the lower rib 21c and the first hook 21a are matched with each other, so that the upper vertical enclosing plate 212 and the magnetic conductive connecting piece 6 are matched more tightly.
The arc extinguishing principle of the embodiment is as follows:
fig. 13 shows a schematic diagram of an electrical connection between a power supply and a load, in which two movable spring lead-out pins 522 and two stationary spring lead-out pins 512 of this embodiment are electrically connected, one movable spring lead-out pin 522 on the right side is electrically connected to one stationary spring lead-out pin 512 on the left side, one movable spring lead-out pin 522 on the left side is electrically connected to the positive electrode of a power supply, one stationary spring lead-out pin 512 on the right side is electrically connected to one input power supply of the load 30, and the other input power supply of the load 30 is electrically connected to the negative electrode of the power supply, so that the current directions of the stationary contacts 511 of the two stationary springs 51 are the same as those of the movable contacts 521 on the two movable springs 52, when the two movable contacts 521 are respectively contacted with the two stationary contacts 511, the power supply 20 is supplied to the load 30, and when the two movable contacts 521 are separated from the two stationary contacts 511, the load 30 is disconnected from the power supply 20.
As shown in fig. 12, the direction of the magnetic field B formed by the two magnetic steels 7 being superimposed is perpendicular to the current direction when the moving contact 521 and the fixed contact 511 are in contact, when the moving contact 521 and the fixed contact 511 are disconnected to generate an arc, since the current direction of the arc current is the same as that of the moving contact 521 and the fixed contact 511 when the arc current is in contact, the arc current I generates a force F under the action of the magnetic field B, and the force F pulls the arc upwards to perform rapid arc extinction.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides an electromagnetic relay of ability quick arc extinguishing, the on-line screen storage device comprises a base, a housing, magnetic circuit mechanism, actuating mechanism and contact mechanism dress are on the base, the casing includes the casing body, this body coupling base of casing covers magnetic circuit mechanism, actuating mechanism and contact mechanism, contact mechanism includes stationary reed and the movable contact spring that corresponds with it, be equipped with the stationary contact on the stationary reed, be equipped with the movable contact on the movable contact spring, the magnetic force that produces through magnetic circuit mechanism makes actuating mechanism move, actuating mechanism drives the movable contact spring action and makes movable contact and stationary contact engage or break away from mutually, its characterized in that: the magnetic conduction connecting piece comprises two parallel support arms and an intermediate support arm for connecting the two support arms, the inner sides of the two support arms are respectively connected with one magnetic steel, the magnetic conduction connecting piece and the two magnetic steels are arranged on the outer side of the shell body together and fixedly connected with the shell body, the two magnetic steels are respectively arranged on two sides of the contact mechanism, the magnetic pole direction of each magnetic steel reaches the inner side surface of the intermediate support arm, the current direction when the movable contact is in contact with the static contact is perpendicular to the current direction, and the polarities of the opposite surfaces of the two magnetic steels are set to be opposite.
2. An electromagnetic relay capable of rapidly extinguishing an arc according to claim 1, wherein: the inner side of the middle supporting arm is provided with a plurality of limiting convex parts close to each supporting arm, and the limiting convex parts limit one side of the magnetic steel.
3. An electromagnetic relay capable of rapidly extinguishing an arc according to claim 1, wherein: the base is provided with two static reeds and two movable reeds side by side, the leading-out pins of the two static reeds extend out from the lower surface of the base, and the leading-out pins of the two movable reeds also extend out from the lower surface of the base;
the magnetic circuit mechanism comprises a coil framework, an iron core, an L-shaped yoke and an L-shaped armature, wherein the coil framework is fixedly connected to a base along the vertical direction, a coil is arranged on the coil framework, the iron core penetrates through a through hole in the middle of the coil framework, one end of the L-shaped yoke is fixedly connected with the lower end of the iron core, the outer side of the L-shaped yoke is fixedly connected with the lower end of a pressure spring piece, the upper end of the pressure spring piece presses the L-shaped armature, so that one end of the L-shaped armature is close to the L-shaped yoke, when the coil is electrified, the other end of the L-shaped armature is attracted with the other end of the iron core, and when the coil is deenergized, the other end of the L-shaped armature is separated from the other end of the iron core;
the driving mechanism comprises a pushing piece, the pushing piece comprises a body, one side of the body is provided with a connecting part connected with one end of an L-shaped armature, the other side of the body is provided with two parallel pushing parts, and when the other end of the L-shaped armature is attracted with the other end of the iron core, the two pushing parts respectively push two movable contacts on two movable spring pieces to be attracted with two static contacts on two static spring pieces; when the other end of the L-shaped armature is separated from the other end of the iron core, the two movable springs are reset, and the two movable contacts are separated from the two fixed contacts;
the base is provided with two support sheets side by side, one end of each movable reed leans against one support sheet when the movable reed is reset, each support sheet is also provided with a guide through hole, and each pushing part penetrates through one guide through hole.
4. An electromagnetic relay capable of rapidly extinguishing an arc according to any one of claims 1 to 3, characterized in that: a U-shaped groove is formed on the periphery of the outer side of the shell body close to the contact mechanism, and the magnetic conduction connecting piece and the two magnetic steels are installed on the U-shaped groove together.
5. An electromagnetic relay capable of rapidly extinguishing an arc according to claim 4, wherein: the casing body is a square body in general, and the left side, the right side and the front side of the casing body close to the contact mechanism form a U-shaped horizontal bottom plate, the outer edge of the U-shaped horizontal bottom plate extends upwards to form an upper vertical coaming, and the U-shaped horizontal bottom plate, the upper vertical coaming and the outer side face of the casing body part jointly enclose the U-shaped groove.
6. An electromagnetic relay capable of rapidly extinguishing an arc according to claim 5, wherein: every be equipped with the joint hole on the support arm, go up vertical bounding wall inboard and be equipped with first pothook near every support arm department, every first pothook and one joint hole looks joint.
7. An electromagnetic relay capable of rapidly extinguishing an arc according to claim 6, wherein: and a cover body is matched with the shell body to cover the magnetic conduction connecting piece and the part of the two magnetic steels outside the U-shaped groove.
8. An electromagnetic relay capable of rapidly extinguishing an arc according to claim 7, wherein: every magnet steel is close to lid one side is equipped with the cooperation recess, and the skew magnet steel of cooperation recess is along the middle section of magnetic pole direction, and the lid inboard is close to every cooperation groove department is equipped with the cooperation convex part, every cooperation convex part and a cooperation groove looks joint.
9. An electromagnetic relay capable of rapidly extinguishing an arc according to claim 7, wherein: a second clamping hook is arranged at the position, close to each support arm, on the inner side of the cover body, and each second clamping hook is also clamped with one clamping hole; the upper vertical coaming is provided with a first open slot on two sides of each first hook, and the cover body is provided with a second open slot on two sides of each second hook.
10. An electromagnetic relay capable of rapidly extinguishing an arc according to claim 7, wherein: the cover body comprises a U-shaped top plate, and a lower vertical coaming extends downwards from the periphery of the U-shaped top plate close to the outer side; a concave relief area is arranged on one side, close to the U-shaped groove, of the upper end surface of the shell body, and the concave relief area is matched with the cover body, so that the upper end surface of the cover body and the upper end surface of the shell body are located on the same plane; go up vertical bounding wall inboard and be equipped with a plurality of protruding muscle down being close to every magnet steel side department, the lid is equipped with a plurality of protruding muscle of going up being close to every magnet steel side department, and a plurality of protruding muscle of going up block the support arm with a plurality of protruding muscle down jointly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220536502.6U CN217214600U (en) | 2022-03-11 | 2022-03-11 | Electromagnetic relay capable of rapidly extinguishing arc |
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| CN202220536502.6U CN217214600U (en) | 2022-03-11 | 2022-03-11 | Electromagnetic relay capable of rapidly extinguishing arc |
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| CN217214600U true CN217214600U (en) | 2022-08-16 |
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Address after: Building F, No. 99, Tonggang 1st Road, Zhoushan High-tech Industrial Park, Dinghai District, Zhoushan City, China (Zhejiang) Pilot Free Trade Zone, Zhoushan City, Zhejiang Province 316000 Patentee after: Zhejiang Hongfa Industrial Automation Control Electronics Co.,Ltd. Address before: Building F, No. 99, Tonggang 1st Road, Zhoushan High-tech Industrial Park, Dinghai District, Zhoushan City, China (Zhejiang) Pilot Free Trade Zone, Zhoushan City, Zhejiang Province 316000 Patentee before: Zhejiang Hongfa Acoustic Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |