阅读说明：本技术 小型大功率电磁继电器 (Small-sized high-power electromagnetic relay ) 是由 陈志龙 冯旭强 游平 石松礼 于 2021-09-26 设计创作，主要内容包括：小型大功率电磁继电器,包括基座,所述基座的内部安装有环形的隔板,所述隔板的内部为电磁系统安装腔,所述电磁系统安装腔的内部安装有线圈机构,所述线圈机构的尾部安装有轭铁,所述线圈机构的前端安装有矩形板体结构的衔铁；所述基座的内部还开设有第一卡槽和第二卡槽,所述第二卡槽的内部卡合安装有常开静簧组件,所述常闭静簧组件、常开静簧组件之间安装有动簧组件；本发明通过对动簧组件、电磁系统以及基座进行结构优化设计,可使得继电器的结构更为紧凑,能够缩小继电器整体尺寸,整个继电器联动更为高效。(The small high-power electromagnetic relay comprises a base, wherein an annular partition plate is arranged inside the base, an electromagnetic system installation cavity is arranged inside the partition plate, a coil mechanism is arranged inside the electromagnetic system installation cavity, a yoke is arranged at the tail part of the coil mechanism, and an armature with a rectangular plate body structure is arranged at the front end of the coil mechanism; a first clamping groove and a second clamping groove are formed in the base, a normally open static spring assembly is clamped and mounted in the second clamping groove, and a movable spring assembly is mounted between the normally closed static spring assembly and the normally open static spring assembly; according to the invention, through carrying out structural optimization design on the movable spring assembly, the electromagnetic system and the base, the structure of the relay is more compact, the overall size of the relay can be reduced, and the linkage of the whole relay is more efficient.)

1. A small-sized high-power electromagnetic relay is characterized in that: the electromagnetic coil device comprises a base, wherein an annular partition plate is arranged inside the base, an electromagnetic system installation cavity is arranged inside the partition plate, a coil mechanism is arranged inside the electromagnetic system installation cavity, a yoke is arranged at the tail part of the coil mechanism, and an armature with a rectangular plate structure is arranged at the front end of the coil mechanism;

the base is characterized in that a first clamping groove and a second clamping groove are further formed in the base, the first clamping groove is located on the outer side of the second clamping groove, a first groove is formed between the first clamping groove and the second clamping groove, the second clamping groove is located on the outer side of the partition plate, a normally closed static spring assembly is clamped in the first clamping groove, a normally open static spring assembly is clamped in the second clamping groove, a movable spring assembly is arranged between the normally closed static spring assembly and the normally open static spring assembly, the movable end of the movable spring assembly is located above the first groove relatively, the movable spring assembly is connected with the armature through a push-pull mechanism, the movable spring assembly and the armature synchronously swing through the push-pull mechanism, the movable spring assembly is in electrical contact with the normally closed static spring assembly or the normally open static spring assembly, and a sealing cover is packaged at the top of the base.

2. A small-sized high-power electromagnetic relay according to claim 1, characterized in that: coil mechanism includes first curb plate body, coil part, second curb plate body, coil terminal, iron core, winds the post, be equipped with first curb plate body, second curb plate body respectively perpendicularly around the both ends of post, the outside winding around the post has the coil part, armature is installed to the lateral surface of first curb plate body, yoke and coil terminal are installed in the outside of second curb plate body, the iron core has been inserted around the inside of post.

3. A small-sized high-power electromagnetic relay according to claim 2, characterized in that: the yoke iron is of an L-shaped structure, the vertical part of the yoke iron is fixed to the side face of the second side plate body, and the horizontal part of the yoke iron is arranged at the bottom of the coil part.

4. A small-sized high-power electromagnetic relay according to claim 2, characterized in that: the side symmetry of second curb plate body is equipped with coil terminal mount pad, the coil terminal includes cylinder, center pillar body and lower cylinder, well cylinder cartridge is in coil terminal mount pad, the top surface of well cylinder is equipped with the cylinder perpendicularly, the bottom surface is equipped with down the cylinder perpendicularly, go up cylinder and coil part electric connection, go up cylinder, center pillar body and lower cylinder and be the multistage dislocation bending structure.

5. A small-sized high-power electromagnetic relay according to claim 4, characterized in that: the utility model discloses a restraint groove, including first side plate body, first armature side shield, restraint groove, first armature side shield, restraint groove, first armature side shield, the outer wall middle part symmetry of first side plate body is equipped with first armature side shield, the outer wall bottom symmetry of first side plate body is equipped with second armature side shield, the medial surface of second armature side shield is seted up jaggedly, the bottom of breach is the decurrent support inclined plane of slope, the restraint groove has been seted up to the both sides of armature, first armature side shield stretches into in the restraint inslot, first armature side shield is used for controlling armature spacing, the bottom both sides bulge of armature imbeds in the restraint inslot, the restraint groove is used for carrying on spacing, two from top to bottom armature between the second armature side shield install the pressure spring, the outside of armature is arranged in the pressure spring laminating.

6. A small-sized high-power electromagnetic relay according to claim 5, characterized in that: the push-pull mechanism comprises a tail plate, an intermediate plate, a push clamp and a push-pull baffle plate, wherein the tail end of the intermediate plate is vertically connected with the tail plate, the front end of the intermediate plate is provided with the push-pull baffle plate, the push-pull baffle plate extends downwards and outwards from the intermediate plate, the front side face of the push-pull baffle plate is provided with the push clamp in a rectangular square frame structure, the intermediate plate and the tail plate are arranged in a T shape, two ends of the back face of the tail plate are symmetrically provided with L-shaped armature clamp covers, the top end of an armature is clamped and embedded between the two armature clamp covers, the middle part of the tail plate is clamped and connected with the top of the armature, the push clamp is matched and connected with a movable spring assembly, and the outward extension part of the push-pull baffle plate is stopped at the side face of the movable spring assembly.

7. A small-sized high-power electromagnetic relay according to claim 6, characterized in that: the movable spring assembly comprises a movable spring piece, a movable spring leading-out pin, a first movable contact and a second movable contact; the end part of one end of the movable spring is symmetrically provided with a first movable contact and a second movable contact, the top of the movable spring is provided with a second groove, the middle part of the second groove is vertically provided with a cantilever beam, the side surface of the top end of the cantilever beam is provided with an elastic buckle with a triangular section, and the elastic buckle is clamped and embedded in the push card; the other end of the movable spring leaf is bent inwards vertically, and a bent part is hinged with a movable spring leading-out pin which is inserted into the base.

Technical Field

The invention belongs to the technical field of switching appliances, and particularly relates to a small-sized high-power electromagnetic relay.

Background

With the rapid development of modern science and technology, the functions of household appliance industries and industrial control products represented by air conditioners, washing machines and the like are more and more diversified and intelligentized, and the size of the used components is required to be miniaturized on the premise of not increasing the appearance volume of the whole product, so that the complicated function arrangement layout of the internal control circuit can be met; the layout of the existing electromagnetic relay is loose, and the connection is not compact enough, so that the overall size of the electromagnetic relay is large, and the electromagnetic relay can not meet the use requirement of a small-sized electric appliance.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a small-sized high-power electromagnetic relay, and the specific technical scheme is as follows:

the small high-power electromagnetic relay comprises a base, wherein an annular partition plate is arranged inside the base, an electromagnetic system installation cavity is arranged inside the partition plate, a coil mechanism is arranged inside the electromagnetic system installation cavity, a yoke is arranged at the tail part of the coil mechanism, and an armature with a rectangular plate body structure is arranged at the front end of the coil mechanism;

the base is characterized in that a first clamping groove and a second clamping groove are further formed in the base, the first clamping groove is located on the outer side of the second clamping groove, a first groove is formed between the first clamping groove and the second clamping groove, the second clamping groove is located on the outer side of the partition plate, a normally closed static spring assembly is clamped in the first clamping groove, a normally open static spring assembly is clamped in the second clamping groove, a movable spring assembly is arranged between the normally closed static spring assembly and the normally open static spring assembly, the movable end of the movable spring assembly is located above the first groove relatively, the movable spring assembly is connected with the armature through a push-pull mechanism, the movable spring assembly and the armature synchronously swing through the push-pull mechanism, the movable spring assembly is in electrical contact with the normally closed static spring assembly or the normally open static spring assembly, and a sealing cover is packaged at the top of the base.

Further, coil mechanism includes first curb plate body, coil part, second curb plate body, coil terminal, iron core, winds the post, be equipped with first curb plate body, second curb plate body respectively perpendicularly around the both ends of post, it has the coil part to wind the outside winding of post, armature is installed to the lateral surface of first curb plate body, yoke and coil terminal are installed in the outside of second curb plate body, the iron core has been inserted around the inside of post.

Further, the yoke is of an L-shaped structure, the vertical portion of the yoke is fixed to the side face of the second side plate body, and the horizontal portion of the yoke is placed at the bottom of the coil portion.

Further, the side symmetry of second curb plate body is equipped with coil terminal mount pad, the coil terminal includes cylinder, center pillar body and lower cylinder, well cylinder cartridge is in coil terminal mount pad, the top surface of well cylinder is equipped with the cylinder perpendicularly, the bottom surface is equipped with down the cylinder perpendicularly, go up cylinder and coil part electric connection, go up cylinder, center pillar body and lower cylinder and be the multistage dislocation bending structure.

Further, the outer wall middle part symmetry of first side plate body is equipped with first armature side shield, the outer wall bottom symmetry of first side plate body is equipped with second armature side shield, the medial surface of second armature side shield is seted up jaggedly, the bottom of breach is the decurrent support inclined plane of slope, the restraint groove has been seted up to the both sides of armature, first armature side shield stretches into in the restraint inslot, first armature side shield is used for controlling spacing armature, the bottom both sides bulge of armature imbeds in the restraint inslot, the restraint groove is used for carrying out spacing from top to bottom to armature, two install the pressure spring between the second armature side shield, the outside of armature is arranged in the pressure spring laminating.

Furthermore, the push-pull mechanism comprises a tail plate, an intermediate plate, a push clamp and a push-pull baffle, wherein the tail end of the intermediate plate is vertically connected with the tail plate, the front end of the intermediate plate is provided with the push-pull baffle, the push-pull baffle extends downwards and outwards from the intermediate plate, the front side face of the push-pull baffle is provided with the push clamp in a rectangular square frame structure, the intermediate plate and the tail plate are arranged in a T shape, two ends of the back face of the tail plate are symmetrically provided with L-shaped armature clamp covers, the top end of the armature is clamped and embedded between the two armature clamp covers, the middle part of the tail plate is clamped and connected with the top of the armature, the push clamp is matched and connected with the movable spring assembly, and the outer extension part of the push-pull baffle is stopped at the side face of the movable spring assembly.

Further, the movable spring assembly comprises a movable spring piece, a movable spring leading-out pin, a first movable contact and a second movable contact; the end part of one end of the movable spring is symmetrically provided with a first movable contact and a second movable contact, the top of the movable spring is provided with a second groove, the middle part of the second groove is vertically provided with a cantilever beam, the side surface of the top end of the cantilever beam is provided with an elastic buckle with a triangular section, and the elastic buckle is clamped and embedded in the push card; the other end of the movable spring leaf is bent inwards vertically, and a bent part is hinged with a movable spring leading-out pin which is inserted into the base.

The invention has the beneficial effects that: through carrying out configuration optimization design to movable spring subassembly, electromagnetic system and base, can make the structure of relay more compact, can reduce the whole size of relay, whole relay linkage is more high-efficient.

Drawings

Fig. 1 shows a schematic structural diagram of a small-sized high-power electromagnetic relay of the present invention;

FIG. 2 shows a schematic view of the base structure of the present invention;

FIG. 3 shows a schematic diagram of the normally closed static spring assembly of the present invention;

FIG. 4 is a schematic structural view of the dynamic spring assembly of the present invention;

FIG. 5 illustrates a schematic structural view of a normally open static spring assembly of the present invention;

FIG. 6 shows a schematic view of the push-pull mechanism of the present invention;

FIG. 7 illustrates a first side structural schematic of an electromagnetic system of the present invention;

FIG. 8 illustrates a second side structural schematic of the electromagnetic system of the present invention;

FIG. 9 shows a schematic diagram of the bobbin construction of the present invention;

FIG. 10 shows a schematic view of an armature construction of the present invention;

FIG. 11 shows a schematic view of the yoke structure of the present invention;

fig. 12 shows a schematic view of a coil terminal structure of the present invention;

FIG. 13 shows a schematic view of the outer surface configuration of the seal housing of the present invention;

FIG. 14 is a schematic view showing the internal structure of the sealing boot of the present invention;

shown in the figure: 1. a base; 11. a partition plate; 122. an electromagnetic system installation cavity; 121. an electromagnetic positioning slot; 122. buckling; 13. a first card slot; 14. a first groove; 15. a second card slot; 2. a coil mechanism; 21. a first side plate body; 211. a first armature side stop; 212. a second armature side stop; 2121. a notch; 2122. a slot; 22. a coil portion; 23. a second side plate body; 231. a coil terminal mounting base; 24. a coil terminal; 241. an upper column; 242. a middle column body; 243. a lower column; 25. an iron core; 26. winding the column; 27. a pressure spring; 3. a push-pull mechanism; 31. a tail plate; 311. an armature card cover; 32. a middle plate; 33. pushing the card; 34. pushing and pulling the baffle plate; 35. a reinforcing plate; 4. a normally open static spring assembly; 41. a normally open static reed; 42. a first stationary contact; 5. a movable spring assembly; 51. a movable spring plate; 511. a second groove; 512. elastic buckle; 52. a movable spring leading-out pin; 53. a first movable contact; 54. a second movable contact; 6. a normally closed static spring assembly; 61. normally closing the static reed; 62. a second stationary contact; 7. a yoke; 8. an armature; 81. a confinement groove; 9. and (6) sealing the cover.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

The small high-power electromagnetic relay comprises a base 1, wherein an annular partition plate 11 is arranged inside the base 1, an electromagnetic system installation cavity 12 is arranged inside the partition plate 11, a coil mechanism 2 is arranged inside the electromagnetic system installation cavity 12, a yoke 7 is arranged at the tail of the coil mechanism 2, and an armature 8 with a rectangular plate structure is arranged at the front end of the coil mechanism 2;

a first clamping groove 13 and a second clamping groove 15 are further formed in the base 1, the first clamping groove 13 is located on the outer side of the second clamping groove 15, a first groove 14 is arranged between the first clamping groove 13 and the second clamping groove 15, the second clamping groove 15 is positioned at the outer side of the clapboard 11, the normally closed static spring component 6 is clamped and installed in the first clamping groove 13, a normally open static spring component 4 is clamped and installed in the second clamping groove 15, a movable spring component 5 is installed between the normally closed static spring component 6 and the normally open static spring component 4, the movable end of the movable spring component 5 is relatively positioned above the first groove 14, the movable spring component 5 is connected with the armature 8 through the push-pull mechanism 3, the movable spring assembly 5 and the armature 8 synchronously swing through the push-pull mechanism 3, the movable spring assembly 5 is electrically contacted with the normally closed static spring assembly 6 or the normally open static spring assembly 4, and the top of the base 1 is packaged with the sealing cover 9.

As an improvement of the above technical solution, the coil mechanism 2 includes a first side plate 21, a coil portion 22, a second side plate 23, a coil terminal 24, an iron core 25, and a winding column 26, the two ends of the winding column 26 are respectively and vertically provided with the first side plate 21 and the second side plate 23, the coil portion 22 is wound around the outside of the winding column 26, an armature 8 is installed on the outer side surface of the first side plate 21, a yoke 7 and the coil terminal 24 are installed on the outside of the second side plate 23, and the iron core 25 is inserted into the winding column 26.

As a modification of the above technical solution, the yoke 7 has an L-shaped structure, a vertical portion of the yoke 7 is fixed to a side surface of the second side plate 23, and a horizontal portion of the yoke 7 is disposed at a bottom of the coil portion 22.

As an improvement of the above technical solution, the side surface of the second side plate 23 is symmetrically provided with coil terminal installation seats 231, the coil terminal 24 includes an upper column 241, a middle column 242 and a lower column 243, the middle column 242 is inserted into the coil terminal installation seat 231, the top surface of the middle column 242 is vertically provided with the upper column 241, the bottom surface of the middle column 242 is vertically provided with the lower column 243, the upper column 241 is electrically connected with the coil part 22, and the upper column 241, the middle column 242 and the lower column 243 are in a multi-section staggered bending structure.

As an improvement of the above technical solution, the first armature side baffle 211 is symmetrically arranged in the middle of the outer wall of the first side plate body 21, the second armature side baffle 212 is symmetrically arranged at the bottom of the outer wall of the first side plate body 21, the notch 2121 is formed in the inner side surface of the second armature side baffle 212, the bottom of the notch 2121 is a support inclined plane inclined downward, the constraining groove 81 is formed in each of two sides of the armature 8, the first armature side baffle 211 extends into the constraining groove 81, the first armature side baffle 211 is used for limiting the armature 8 left and right, the protruding parts on two sides of the bottom of the armature 8 are embedded into the constraining groove 81, the constraining groove 81 is used for limiting the armature 8 up and down, the pressure spring 27 is installed between the second armature side baffles 212, and the pressure spring 27 is attached to the outer side of the armature 8.

As an improvement of the above technical solution, the push-pull mechanism 3 includes a tail plate 31, a middle plate 32, a push-pull clamp 33 and a push-pull baffle 34, the tail end of the middle plate 32 is vertically connected to the tail plate 31, the front end of the middle plate is provided with the push-pull baffle 34, the push-pull baffle 34 extends downward beyond the middle plate 32, the front side of the push-pull baffle 34 is provided with the push clamp 33 having a rectangular frame structure, the middle plate 32 and the tail plate 31 are arranged in a T shape, two ends of the back surface of the tail plate 31 are symmetrically provided with L-shaped armature clamp covers 311, the top end of the armature 8 is clamped and embedded between the two armature clamp covers 311, the middle part of the tail plate 31 is clamped and connected to the top of the armature 8, the push clamp 33 is assembled and connected to the movable spring assembly 5, and the extension part of the push-pull baffle 34 is stopped at the side of the movable spring assembly 5.

As a modification of the above technical solution, the movable spring assembly 5 includes a movable spring piece 51, a movable spring leading pin 52, a first movable contact 53 and a second movable contact 54; a first movable contact 53 and a second movable contact 54 are symmetrically arranged at one end of the movable spring 51, a second groove 511 is formed in the top of the movable spring 51, a cantilever beam is vertically arranged in the middle of the second groove 511, an elastic buckle 512 with a triangular cross section is arranged on the side surface of the top end of the cantilever beam, and the elastic buckle 512 is clamped and embedded in the push card 33; the other end of the movable spring leaf 51 is bent inwards vertically, the bent part is hinged with a movable spring leading-out foot 52, and the movable spring leading-out foot 52 is inserted into the base 1.

The base, the normally open static spring assembly, the dynamic spring assembly and the normally closed static spring assembly form a contact system of the relay; wherein:

the normally open static spring assembly 4 comprises a normally open static spring 41 and a first static contact 42, the normally open static spring is Z-shaped, the top end of the normally open static spring is provided with the first static contact close to the movable spring assembly, the first static contact is made of silver alloy and is of a square structure, and then the first static contact is fixed on the normally open static spring through welding; the normally open static reed is made of a copper alloy material with good conductivity;

the normally closed static spring assembly 6 comprises a normally closed static spring piece 61 and a second static contact 62, the top end of the normally closed static spring piece is provided with the second static contact close to the movable spring assembly, the second static contact is made of silver alloy into a square structure, and then the second static contact is fixed on the normally closed static spring piece through welding; the normally closed static reed is made of a copper alloy material with good conductivity;

the movable spring component: the first movable contact and the second movable contact are connected with the movable spring piece through spot welding, the movable spring piece is made of copper alloy materials with good elasticity and conductivity, and the leading-out pin of the movable spring is made of copper alloy materials with good conductivity;

the movable spring plate adopts an elastic triangular buckle structure at the position where the movable spring plate is connected with the pushing card, so that the reliable connection of the pushing card and the movable spring plate is ensured; the movable spring elastic buckle is arranged in the second groove, two square grooves are formed on two sides of the elastic buckle, so that the pushing part has a larger moving space and further has larger elasticity, and the cantilever beam structure can further increase the elastic moving effect, thereby ensuring that the movable spring has a larger current carrying area and reducing the heat of a product; meanwhile, the product can be ensured to have larger contact tracking, and the number of times of the electrical service life of the product is ensured;

a base: the electromagnetic system is processed by a plastic material with high temperature resistance and good insulating property, and mainly plays a role in supporting and fixing the dynamic and static spring combination and the electromagnetic system. The first partition plate plays a role in increasing the creepage distance between the dynamic and static springs and the electromagnetic system, and the first groove plays a role in increasing the creepage distance between the normally open static spring assembly and the normally closed static spring assembly (namely, a normally open/normally closed contact);

an electromagnetic positioning groove 121 and a bayonet 122 are arranged inside the electromagnetic system mounting cavity 12, the electromagnetic positioning groove 121 is used for fixing four corners of the coil framework, and the buckle 122 is used for pressing and fixing the horizontal part of the yoke;

the push-pull mechanism is mainly used for driving the movable spring component to be linked with the electromagnetic system:

pushing the card: the design has the rectangle spread groove with elastic buckle complex, is equipped with sunken anti-dynamic spring in the rectangle spread groove and takes off the face. When the movable spring assembly is assembled, the elastic buckle elastically deforms and penetrates through the connecting groove to form a structure which is not easy to disassemble; the push-pull baffle mainly plays a role in effectively reducing the rebound of the movable spring piece when a product is released, and preventing the bridging phenomenon of the movable contact and the static contact in a disconnected state; a reinforcing plate 35 is arranged between the push-pull clamp and the push-pull baffle;

a middle plate: the function of connecting the head part and the tail part is realized, and the force of the armature (or the moving spring) acting on the pushing card can be transmitted to the moving spring (or the armature).

A tail plate: the two oppositely arranged armature card covers can form clamping grooves matched with the armatures on two sides, the middle part of the tail plate is provided with a positioning block, and when the armatures are arranged in the clamping grooves of the pushing card, the middle positioning block is just clamped into the positioning grooves of the armatures;

an electromagnetic system: the coil part provides electromagnetic attraction for the product as motive power of the product, the armature is under the action of power provided by the electromagnetic attraction, the push card is driven in the attraction process to close the contact, and the push card is pushed in the disconnection process to disconnect the contact under the action of the reaction force of the movable reed;

a coil mechanism: the coil is composed of a coil framework made of plastic with higher temperature resistance level, a high-temperature resistant enameled round copper wire and a coil terminal with good conductivity;

the coil framework comprises a first side plate, a second side plate and a winding column, an iron core penetrates through the winding column, a coil terminal installation seat is designed on the outer side of the second side plate, a first armature side baffle and a second armature side baffle are designed on the outer wall of the first side plate, and the first armature side baffle and the second armature side baffle can constrain and position the armature from an upper direction, a lower direction and a left direction so that the armature can only swing in a fixed area, and the bottom surface of a notch of the second armature side baffle is designed into an inclined plane structure to meet the requirement of armature movement in a swinging state; the top of the second armature side baffle is provided with a slot 2122, the notch is communicated with the slot, a pressure spring 27 is inserted between the two slots, and the pressure spring can stop the armature from the outer side to prevent the armature from separating outwards;

coil terminals: is made of copper alloy material with excellent conductivity. It can be divided into three parts: the upper cylinder body is an inner winding part and is used for winding an enameled round copper wire and dipping tin, the middle cylinder body is a middle mounting part and is used for being mounted in a mounting groove of a coil framework, a plurality of positioning bosses 2421 are vertically arranged on the side wall of the middle cylinder body, the positioning bosses can play a role in accurately positioning and increasing the plugging and unplugging force, the lower cylinder body is an exposed part and is used for mounting a relay on a connecting part of a PCB (printed circuit board), and the upper cylinder body, the middle cylinder body and the lower cylinder body are designed into a multi-section staggered bending structure in order to meet the requirements of a mounting structure;

iron core: the iron core plays a role of magnetic conduction, is formed by processing an electrical pure iron cold heading with small coercive force and high magnetic permeability, and has a basic shape of a step shaft; consists of a long column body and a plate body at the end part, the outer diameter of the long column body of the iron core is 4.5, the outer diameter of the plate body is 8.2,

yoke iron: the magnetic yoke has the function of magnetic conduction, is formed by cold heading and stamping of electrical pure iron with small coercive force and high magnetic permeability, is L-shaped in basic shape, the horizontal part of the yoke is arranged below the coil part, the vertical part is attached to the second side surface, and the plate body of the iron core stops and positions the vertical part of the yoke from the outer side;

an armature: the armature integrally has a long plate structure, the armature comprises a push sheet matching part and an iron core attracting part, the thickness of the push sheet matching part is smaller than that of the iron core attracting part, the push sheet matching part is arranged at the top of the iron core attracting part, the joint of the push sheet matching part and the iron core attracting part is of an inverted right-angle structure, the push sheet matching part is inserted between two armature clamping covers, a positioning hole is formed in the push sheet matching part, and the positioning hole is connected with the tail plate in a clamping manner; the iron core attracting part is provided with grooves on two sides, and the lower part of the iron core attracting part extends into the gap.

Sealing the cover: the air-permeable heat-insulating material is processed by a plastic material with high temperature resistance and good insulating property, and is provided with air vents, so that heat inside the product can be conveniently dissipated during working, and the product can be completely sealed and airtight if the air vents are sealed (sealed); a partition wall of the normally open static spring assembly and the electromagnetic system, and a partition wall of the movable spring assembly and the electromagnetic system are arranged in the sealing cover; and the joint of the sealing cover and the base is coated with oil and sealing glue solution.

The overall dimension of the electromagnetic relay is as follows: 29.2 mm. times.21.6 mm. times.15.7 mm (length. times.width. times.height).

Large switching load, maximum contact switchable 40A x 250va.c.

Greater creepage distance: the creepage distance of air is up to more than 8 mm.

Conforms to the enhanced insulation standard of I EC 61810-1.

The medium has high withstand voltage: the medium withstand voltage between the coil and the contact reaches more than 4KV, and the coil and the contact can bear the surge voltage impact of 8 KV.

The invention has high temperature resistance level, can normally work at the temperature of between 40 ℃ below zero and 85 ℃, can provide two products of a welding-proof agent type and a plastic package type, and meets the requirements of various circuit board production processes of users.

The invention is a product with the smallest volume of the similar products in the current market, and can be widely applied to a plurality of industries such as heating, ventilating and air conditioning, various electric appliances, industrial control, photovoltaic new energy and the like.

In this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.