High-power relay

Abstract

A high-power relay disclosed by the present invention comprises a base, a moving assembly, a static assembly and a coil assembly, the base comprises a mounting cavity, the moving assembly comprises an armature, a first elastic sheet, a second elastic sheet, a moving sheet and a splitter, the static assembly comprises a static sheet, the coil assembly comprises a coil holder, a pin, an iron core and a yoke, the armature is erected on the yoke, and the coil holder is arranged on the yoke. The end, away from the coil holder, of the armature is provided with a shell, the armature and the shell are fixed through a rivet, the shell is provided with a first opening, a second opening and a plurality of through holes, the first elastic piece is provided with a first mounting hole, the second elastic piece is provided with a second mounting hole, the moving piece is fixed to the side, away from the armature, of the first elastic piece, and the moving piece is provided with a first moving contact. The splitter is fixed to the side, away from the armature, of the second elastic piece, a second moving contact is arranged on the splitter, the static piece is arranged on the installation cavity in a penetrating mode, a first static contact and a second static contact are arranged on the static piece, and by optimizing a loop, the high-power electromagnetic relay has the advantages of being low in temperature rise and small in resistance and is more suitable for high-power scenes.

Description

Technical Field

[0001] The invention belongs to the technical field of relays, and in particular relates to a high-power relay. Background Art

[0002] Electromagnetic relay is an electronic control device, which has a control system (also known as input circuit) and a controlled system (also known as output circuit). It is usually used in automatic control circuits. It is actually an "automatic switch" that uses a smaller current and a lower voltage to control a larger current and a higher voltage. Therefore, it plays the role of automatic adjustment, safety protection, and circuit conversion in the circuit. Electromagnetic relays are widely used in aviation, aerospace, ships, home appliances and other fields. They mainly complete functions such as signal transmission, execution control, and system power distribution. They are one of the key electronic components in various systems.

[0003] Most of the existing relays are single-circuit structures. In some working conditions that need to carry large currents, such as photovoltaic inverters and other equipment, there is a serious problem of heating, which affects the normal use of the equipment. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides an electromagnetic relay that is more suitable for high-power scenarios than the prior art.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a high-power relay, including a base, a moving component, a static component and a coil component, the base includes a mounting cavity, the moving component includes an armature, a spring piece 1, a spring piece 2, a moving piece and a shunt piece, the static component includes a static piece, the coil component includes a wire frame, a pin inserted in the mounting cavity and connected to the wire frame, an iron core arranged on the wire frame and a yoke arranged on one side of the wire frame, the armature frame is arranged on the yoke, and the end of the armature away from the wire frame is provided with a shell made of an insulating material, and the armature and the shell are fixed by rivets The shell is provided with an opening one for inserting a spring piece one and an opening two for inserting a spring piece two, the shell is provided with a plurality of through holes, a mounting hole one is provided at a position of the spring piece one corresponding to the through hole, a mounting hole two is provided at a position of the spring piece two corresponding to the through hole, the moving piece is fixed to a side of the spring piece one away from the armature, a moving contact one is provided on the moving piece, the shunt piece is fixed to a side of the spring piece two away from the armature, a moving contact two is provided on the shunt piece, the static piece is penetrated through the mounting cavity, a static contact one opposite to the moving contact one and a static contact two opposite to the moving contact two are provided on the static piece.

[0006] By adopting the above scheme, the present invention optimizes the circuit so that compared with the prior art, the present invention has the advantages of low temperature rise and low resistance, and is more suitable for high-power scenarios.

[0007] As a further configuration of the present invention, the static plate has two plates, the dynamic plate is provided with two moving contacts 1, the shunt plate is located on the side of the dynamic plate facing away from the static plate, the shunt plate is provided with two moving contacts 2, and the distance between the two moving contacts 2 is greater than the distance between the two moving contacts 1.

[0008] The above scheme makes the present invention more stable when in use. Preferably, the two static plates are arranged in a mirror image, and the moving plate and the diverter plate are arranged in a mirror image along the mirror image planes of the two static plates.

[0009] As a further configuration of the present invention, the static piece includes a penetration portion, a contact portion one, a contact portion two and a bent end, the penetration portion is penetrated on the mounting cavity, the contact portion one is fixed on the penetration portion, the contact portion two is fixed on the penetration portion through the bent end, there is a gap between the contact portion one and the contact portion two, the contact portion one is located on the side of the moving piece away from the shunt piece, the moving contact one is arranged on the contact portion one, the contact portion one and the contact portion two are parallel to each other and staggered, the moving contact two is located on the contact portion two, and the moving piece is located between the contact portions two of the two static pieces.

[0010] By adopting the above solution, the space in the installation cavity can be better utilized.

[0011] As a further configuration of the present invention, the spring sheet 1 includes an upper fixing part 1, a lower fixing part 1 and a connecting part 1 connecting the upper fixing part 1 and the lower fixing part 1, the mounting hole 1 is arranged on the upper fixing part 1, the spring sheet 1 is fixed to the moving piece through the lower assembly part 1, and the connection between the lower fixing part 1 and the moving piece is located between the two moving contacts 1.

[0012] By adopting the above solution, the upper fixing part 1 and the lower fixing part 1 ensure the fixing effect, and the connecting part 1 ensures the abutting effect between the moving contact 1 and the static contact 1.

[0013] As a further configuration of the present invention, the spring piece 2 includes an upper fixing part 2, a lower fixing part 2 and a connecting part 2 connecting the upper fixing part 2 and the lower fixing part 2, the mounting hole 2 is arranged on the upper fixing part 2, the spring piece 2 is fixed to the shunt plate through the lower assembly part 2, and the connection between the lower fixing part 2 and the shunt plate is located between the two moving contacts 1.

[0014] By adopting the above solution, the upper fixing part 2 and the lower fixing part 2 ensure the fixing effect, and the connecting part 2 ensures the abutting effect between the moving contact 2 and the static contact 2.

[0015] As a further configuration of the present invention, a square hollow is provided on the second connecting portion, and the width of the hollow is greater than or equal to the width of the first connecting portion.

[0016] With the above solution, the width of the hollow refers to the distance of the connection part 2 in the direction from the moving contact 2 to the other moving contact 2. The width of the connection part 1 refers to the distance of the connection part 1 in the direction from the moving contact 1 to the other moving contact 1.

[0017] The width of the second connection part is wider, which can drive the shunt plate to move more stably. The hollowing makes the deformation effect of the second connection part better, and the heat dissipation effect is better, so that the second static contact and the second moving contact can better maintain the abutment state when abutting.

[0018] As a further configuration of the present invention, a notch is provided on the diverter plate, the connection between the lower fixing part 1 and the moving plate is arranged opposite to the notch, and there are two lower fixing parts 2 which are respectively arranged on both sides of the notch.

[0019] By adopting the above solution, the fixing effect between the lower fixing part 2 and the diverter sheet is better, and the missing hole can prevent heat accumulation and facilitate heat dissipation. Preferably, the missing hole is a square hole with chamfered corners.

[0020] As a further configuration of the present invention, the mounting hole one includes at least two large mounting holes one and at least two small mounting holes one, the diameter of the large mounting hole one is larger than that of the small mounting hole one, and the large mounting hole one and the small mounting hole one are arranged at intervals, the mounting hole two includes at least two large mounting holes two and at least two small mounting holes two, the diameter of the large mounting hole two is larger than that of the small mounting hole two, and the large mounting hole two and the small mounting hole two are arranged at intervals, the large mounting hole one is arranged opposite to the small mounting hole two, and the large mounting hole two is arranged opposite to the small mounting hole one.

[0021] By adopting the above solution, the spring piece 1, the spring piece 2 and the housing can be better fixed.

[0022] As a further configuration of the present invention, the distance from the first moving contact to the bottom of the mounting cavity is consistent with the distance from the second moving contact to the bottom of the mounting cavity, and there is a gap between the moving plate and the shunt plate and the mounting cavity.

[0023] By adopting the above scheme, the moving contact 1 and the stationary contact 1, and the moving contact 2 and the stationary contact 2 can abut or separate at the same time.

[0024] As a further configuration of the present invention, the yoke is provided with two protrusions protruding in a direction away from the installation cavity, and the armature is provided with grooves for the protrusions to be embedded in on opposite sides, and there is a gap between the protrusions and the grooves.

[0025] The above solution is adopted to ensure that the armature can stably drive the spring piece 1 and the spring piece 2 to move through the housing.

[0026] The present invention will be further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] AttachedFigure 1 It is an overall schematic diagram of a specific embodiment of the present invention;

[0028] Attached Figure 2 It is a schematic diagram of the position relationship of a specific embodiment of the present invention;

[0029] Attached Figure 3 This is a schematic diagram of the connection between the spring piece 1 and the moving piece in a specific embodiment of the present invention;

[0030] Attached Figure 4 This is a schematic diagram of the connection between the spring piece 2 and the shunt piece in a specific embodiment of the present invention;

[0031] Attached Figure 5 It is a still picture schematic diagram of a specific embodiment of the present invention;

[0032] Attached Figure 6 This is a schematic diagram of the connection between the armature and the housing in a specific embodiment of the present invention;

[0033] Attached Figure 7 It is a schematic diagram of a coil assembly according to a specific embodiment of the present invention.

[0034] Base 1, mounting cavity 11, moving assembly 2, armature 21, groove 211, spring piece 1 22, mounting hole 1 221, large mounting hole 1 2211, small mounting hole 1 2212, upper fixing part 1 222, lower fixing part 1 223, connecting part 1 224, spring piece 2 23, mounting hole 231, large mounting hole 2311, small mounting hole 2312, upper fixing part 232, lower fixing part 233, connecting part 234, hollow 2341 , moving piece 24, moving contact 1 241, shunt piece 25, moving contact 2 251, missing hole 252, shell 26, opening 1 261, opening 262, through hole 263, rivet 27, static component 3, static piece 31, static contact 1 311, static contact 2 312, penetration portion 313, contact portion 1 314, contact portion 2 315, bent end 316, coil assembly 4, wire frame 41, pin 42, iron core 43, yoke 44, and protrusion 441. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that, unless otherwise specified, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. used in the description to indicate the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0037] Specific embodiments of the present invention are shown in the accompanying drawings.

[0038] A high-power relay comprises a base 1, a moving component 2, a static component 3 and a coil component 4, wherein the base 1 comprises an installation cavity 11, the moving component 2 comprises an armature 21, a spring piece 1 22, a spring piece 23, a moving piece 24 and a shunt piece 25, the static component 3 comprises a static piece 31, the coil component 4 comprises a wire frame 41, a pin 42 which is inserted into the installation cavity 11 and connected to the wire frame 41, an iron core 43 which is arranged on the wire frame 41 and a yoke 44 which is arranged on one side of the wire frame 41, the armature 21 is mounted on the yoke 44, and a shell 26 made of an insulating material is provided at one end of the armature 21 away from the wire frame 41, the shell 26 of the present embodiment is made of plastic, the armature 21 and the shell 26 are fixed by rivets 27, and the shell 26 is provided with an opening 261 for inserting the spring piece 1 22 and an opening 262 for inserting the spring piece 23 The shell 26 is provided with a plurality of through holes 263, a mounting hole 221 is provided at a position corresponding to the through hole 263 of the spring piece 1 22, and a mounting hole 231 is provided at a position corresponding to the through hole 263 of the spring piece 23. The spring piece 1 22 and the spring piece 23 can be fixed to the shell 26 through the through hole 263, the mounting hole 221 and the mounting hole 231. The movable piece 24 is fixed to a side of the spring piece 1 22 away from the armature 21, and a movable contact 1 241 is provided on the movable piece 24. The shunt piece 25 is fixed to a side of the spring piece 23 away from the armature 21, and a movable contact 251 is provided on the shunt piece 25. The static piece 31 is penetrated through the mounting cavity 11, and a static contact 1 311 opposite to the movable contact 1 241 and a static contact 2 312 opposite to the movable contact 251 are provided on the static piece 31.

[0039] By optimizing the circuit, the present invention has the advantages of low temperature rise and low resistance compared with the prior art, and is more suitable for high-power scenarios.

[0040] The static piece 31 has two pieces, the dynamic piece 24 is provided with two moving contacts 1 241, the shunt piece 25 is located on the side of the dynamic piece 24 facing away from the static piece 31, and the shunt piece 25 is provided with two moving contacts 251, and the distance between the two moving contacts 251 is greater than the distance between the two moving contacts 1 241. To make the present invention more stable when in use, in this embodiment, the two static pieces 31 are mirror-imaged, and the dynamic piece 24 and the shunt piece 25 are mirror-imaged along the mirroring surfaces of the two static pieces 31.

[0041] The static piece 31 includes a penetration portion 313, a contact portion 1 314, a contact portion 2 315 and a bent end 316. The penetration portion 313 is penetrated on the installation cavity 11, the contact portion 1 314 is fixed on the penetration portion 313, the contact portion 2 315 is fixed on the penetration portion 313 through the bent end 316, there is a gap between the contact portion 1 314 and the contact portion 2 315, the contact portion 1 314 is located on the side of the moving piece 24 away from the shunt piece 25, the moving contact 1 241 is arranged on the contact portion 1 314, the contact portion 1 314 and the contact portion 2 315 are parallel to each other and staggered, the moving contact 2 251 is located on the contact portion 2 315, and the moving piece 24 is located between the contact portions 2 315 of the two static pieces 31. The space in the installation cavity 11 can be better utilized.

[0042] The spring piece 22 includes an upper fixing part 222, a lower fixing part 223, and a connecting part 224 connecting the upper fixing part 222 and the lower fixing part 223. The mounting hole 221 is provided on the upper fixing part 222. The spring piece 22 is fixed to the moving piece 24 through the lower assembly part 1. The connection between the lower fixing part 223 and the moving piece 24 is located between the two moving contacts 241. The upper fixing part 222 and the lower fixing part 223 ensure the fixing effect, and the connecting part 224 ensures the abutting effect between the moving contact 241 and the stationary contact 311.

[0043] The second spring piece 23 includes an upper second fixing part 232, a lower second fixing part 233, and a second connecting part 234 connecting the upper second fixing part 232 and the lower second fixing part 233. The second mounting hole 231 is provided on the upper second fixing part 232. The second spring piece 23 is fixed to the shunt piece 25 through the lower second assembly part. The connection between the lower second fixing part 233 and the shunt piece 25 is located between the two first moving contacts 241. The second upper fixing part 232 and the second lower fixing part 233 ensure the fixing effect, and the second connecting part 234 ensures the abutting effect between the second moving contact 251 and the second static contact 312.

[0044] A square hollow 2341 is provided on the second connection part 234, and the width of the hollow 2341 is greater than or equal to the width of the first connection part 224. The width of the hollow 2341 refers to the distance of the second connection part 234 in the direction from the second moving contact 251 to another second moving contact 251. The width of the first connection part 224 refers to the distance of the first connection part 224 in the direction from the first moving contact 241 to another first moving contact 241. The wider the width of the second connection part 234 is, the more stably the diverter plate 25 can be driven to move. The hollow 2341 makes the deformation effect of the second connection part 234 better, and the heat dissipation effect is better, so that the second static contact 312 and the second moving contact 251 can better maintain the abutment state when abutting.

[0045] The splitter 25 is provided with a notch 252, and the connection between the lower fixing part 1 223 and the moving piece 24 is arranged opposite to the notch 252, and there are two lower fixing parts 233, which are respectively arranged on both sides of the notch 252. This makes the fixing effect between the lower fixing part 233 and the splitter 25 better, and the notch 252 can prevent heat accumulation and facilitate heat dissipation. In this embodiment, the notch 252 is a square hole with chamfers.

[0046] In this embodiment, the mounting hole 1 221 includes three large mounting holes 1 2211 and three small mounting holes 1 2212, the diameter of the large mounting hole 1 2211 is larger than the diameter of the small mounting hole 1 2212, the large mounting hole 1 2211 and the small mounting hole 1 2212 are arranged at intervals, the mounting hole 2 231 includes three large mounting holes 2311 and three small mounting holes 2312, the diameter of the large mounting hole 2311 is larger than the diameter of the small mounting hole 2312, the large mounting hole 2311 and the small mounting hole 2312 are arranged at intervals, the large mounting hole 1 2211 and the small mounting hole 2312 are arranged opposite to each other, and the large mounting hole 2311 and the small mounting hole 1 2212 are arranged opposite to each other. The spring piece 1 22, the spring piece 23 and the housing 26 can be fixed better.

[0047] The distance between the moving contact 1 241 and the bottom of the installation cavity 11 is consistent with the distance between the moving contact 251 and the bottom of the installation cavity 11, and there is a gap between the moving plate 24 and the shunt plate 25 and the installation cavity 11. The moving contact 1 241 and the static contact 1 311, the moving contact 251 and the static contact 2 312 can abut or separate at the same time.

[0048] The yoke 44 is provided with two protrusions 441 protruding away from the mounting cavity 11, and the armature 21 is provided with grooves 211 for the protrusions 441 to be embedded in the opposite sides, and there is a gap between the protrusions 441 and the grooves 211. It is ensured that the armature 21 can stably drive the spring piece 1 22 and the spring piece 23 to move through the housing 26.

[0049] The present invention is not limited to the above-mentioned specific implementation modes. A person skilled in the art may adopt other various specific implementation modes to implement the present invention based on the contents disclosed in the present invention, or any simple changes or modifications made to the design structure and concept of the present invention shall fall within the protection scope of the present invention.

Claims

1. A high-power relay, comprising a base, a moving assembly, a static assembly and a coil assembly, characterized in that: The base includes a mounting cavity, the moving assembly includes an armature, a spring piece 1, a spring piece 2, a moving piece and a shunt piece, the static assembly includes a static piece, the coil assembly includes a wire frame, a pin inserted into the mounting cavity and connected to the wire frame, an iron core arranged on the wire frame and a yoke arranged on one side of the wire frame, the armature is arranged on the yoke, and a shell made of insulating material is provided at one end of the armature away from the wire frame, the armature is fixed to the shell by rivets, and an opening 1 for inserting the spring piece 1 and an insertion opening 2 for inserting the spring piece 2 are provided on the shell. The shell is provided with a plurality of through holes, a mounting hole 1 is provided at a position of the spring piece 1 corresponding to the through hole, a mounting hole 2 is provided at a position of the spring piece 2 corresponding to the through hole, the moving piece is fixed to a side of the spring piece 1 away from the armature, a moving contact 1 is provided on the moving piece, the shunt piece is fixed to a side of the spring piece 2 away from the armature, a moving contact 2 is provided on the shunt piece, the static piece is penetrated through the mounting cavity, a static contact 1 opposite to the moving contact 1 and a static contact 2 opposite to the moving contact 2 are provided on the static piece.

2. A high power relay according to claim 1, characterized in that: The static plate has two plates, and two moving contacts 1 are arranged on the dynamic plate. The shunt plate is located on the side of the dynamic plate facing away from the static plate, and two moving contacts 2 are arranged on the shunt plate, and the distance between the two moving contacts 2 is greater than the distance between the two moving contacts 1.

3. A high power relay according to claim 2, characterized in that: The static piece includes a penetration portion, a contact portion 1, a contact portion 2 and a bent end, the penetration portion is penetrated on the installation cavity, the contact portion 1 is fixed on the penetration portion, the contact portion 2 is fixed on the penetration portion through the bent end, there is a gap between the contact portion 1 and the contact portion 2, the contact portion 1 is located on the side of the moving piece away from the shunt piece, the moving contact 1 is arranged on the contact portion 1, the contact portion 1 and the contact portion 2 are parallel to each other and staggered, the moving contact 2 is located on the contact portion 2, and the moving piece is located between the contact portions 2 of the two static pieces.

4. A high power relay according to claim 3, characterized in that: The spring sheet 1 includes an upper fixing part 1, a lower fixing part 1 and a connecting part 1 connecting the upper fixing part 1 and the lower fixing part 1, the mounting hole 1 is arranged on the upper fixing part 1, the spring sheet 1 is fixed to the moving sheet through the lower assembly part 1, and the connection between the lower fixing part 1 and the moving sheet is located between the two moving contacts 1.

5. A high power relay according to claim 4, characterized in that: The spring piece 2 includes an upper fixing part 2, a lower fixing part 2 and a connecting part 2 connecting the upper fixing part 2 and the lower fixing part 2. The mounting hole 2 is arranged on the upper fixing part 2. The spring piece 2 is fixed to the shunt plate through the lower assembly part 2. The connection between the lower fixing part 2 and the shunt plate is located between the two moving contacts 1.

6. A high power relay according to claim 5, characterized in that: The second connecting portion is provided with a square hollowing out, and the width of the hollowing out is greater than or equal to the width of the first connecting portion.

7. A high power relay according to claim 6, characterized in that: The diverter plate is provided with a notch, the connection between the lower fixing part 1 and the moving plate is arranged opposite to the notch, and there are two lower fixing parts 2 which are respectively arranged at both sides of the notch.

8. A high power relay according to claim 7, characterized in that: The mounting hole one includes at least two large mounting holes one and at least two small mounting holes one, the diameter of the large mounting hole one is larger than that of the small mounting hole one, and the large mounting hole one and the small mounting hole one are arranged at intervals, the mounting hole two includes at least two large mounting holes two and at least two small mounting holes two, the diameter of the large mounting hole two is larger than that of the small mounting hole two, and the large mounting hole two and the small mounting hole two are arranged at intervals, the large mounting hole one is arranged opposite to the small mounting hole two, and the large mounting hole two is arranged opposite to the small mounting hole one.

9. A high power relay according to claim 8, characterized in that: The distance from the first moving contact to the bottom of the mounting cavity is consistent with the distance from the second moving contact to the bottom of the mounting cavity, and there is a gap between the moving plate and the shunt plate and the mounting cavity.

10. A high power relay according to claim 9, characterized in that: The yoke is provided with two protrusions protruding in a direction away from the installation cavity, and the armature is provided with grooves for the protrusions to be embedded in on two opposite sides, and there is a gap between the protrusions and the grooves.

Images