CN108461355B - High-voltage direct-current relay with micro switch - Google Patents
High-voltage direct-current relay with micro switch Download PDFInfo
- Publication number
- CN108461355B CN108461355B CN201810297163.9A CN201810297163A CN108461355B CN 108461355 B CN108461355 B CN 108461355B CN 201810297163 A CN201810297163 A CN 201810297163A CN 108461355 B CN108461355 B CN 108461355B
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- sleeve
- micro switch
- poking
- contact piece
- movable contact
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- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 230000035945 sensitivity Effects 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract 1
- 238000003756 stirring Methods 0.000 description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
- H01H50/641—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rectilinear movement
Abstract
The invention discloses a high-voltage direct-current relay with a micro switch, which comprises a push rod, a movable contact piece, a poking sleeve and the micro switch; the toggle sleeve and the movable contact piece are sleeved in the push rod respectively, the push rod is provided with a reducing step, a contact spring is arranged between the reducing step of the push rod and the movable contact piece, and the contact spring pushes the toggle sleeve to a preset limiting part at one end of the push rod through the movable contact piece; the micro switch is arranged in the relay and is arranged at one side of the poking sleeve, a poking rod is arranged at one side of the poking sleeve, and the tail end of the poking rod is matched with the movable arm of the micro switch; the surface of the poking sleeve facing the movable contact piece is also provided with a protruding part at a preset position. After the structure is adopted, the moving contact piece deflection degree driven by the poking sleeve can be greatly reduced, the moving contact piece deflection prevention effect is achieved, and the service life and the sensitivity of the product are improved.
Description
Technical Field
The invention relates to the technical field of relays, in particular to a high-voltage direct-current relay with a micro switch.
Background
The relay is generally composed of a magnetic circuit part, a contact part, a pushing part, a leading-out part and the like, wherein the magnetic circuit part mainly converts electric energy into mechanical energy to drive the pushing part to move, so that the contact part is contacted, and the opening/closing effect is achieved.
A high-voltage direct current relay with a micro switch in the prior art adopts a direct-acting magnetic circuit structure, a push rod of a push part of the direct current relay is fixed with a movable iron core, when a coil is electrified, the movable iron core moves to drive the push rod to move, one end of the push rod is provided with a movable contact piece, the push rod drives the movable contact piece to move, the movable contact piece is contacted with a fixed contact point fixed at a corresponding position, and when the coil is powered off, the push rod and the movable iron core are reset under the drive of a reset spring, so that the movable contact piece is separated from the fixed contact point, and the purpose of switching on and off a loop is achieved. Fig. 1 is a schematic diagram of a partial structure of a high-voltage direct-current relay with a micro switch in the prior art, where the high-voltage direct-current relay includes a push rod 100, a movable contact 200, a toggle sleeve 300 and a micro switch 400; the toggle sleeve 300 and the movable contact 200 are respectively sleeved into the push rod 100, a clamp spring 101 is fixed at one end of the push rod 100 to limit the toggle sleeve 300, the other end of the push rod 100 is used for connecting a movable iron core, the push rod 100 is provided with a reducing step, a contact spring 201 is arranged between the reducing step of the push rod 100 and the movable contact 200, the contact spring 201 pushes the toggle sleeve 300 to the clamp spring 101 through the movable contact 200, a micro switch 400 is arranged in a relay and corresponds to one side of the toggle sleeve 300, a toggle rod 301 is arranged at one side of the toggle sleeve 300, the tail end of the toggle rod 301 is matched with a movable arm 401 of the micro switch 400, when the push rod 100 moves upwards, the push rod 100 drives the toggle sleeve 300 to move upwards through the contact spring 201, and the tail end of the toggle sleeve 300 presses the movable arm 401 of the micro switch 400 to close the micro switch 400. In the relay with the structure, the tail end of the toggle rod 301 is always subjected to the reaction force (downward direction) of the movable arm 401 to the movable arm 401 while the movable arm 401 is pushed to be connected with the high-voltage circuit upwards, so that the toggle sleeve 300 is in surface contact with the movable contact 200 to inevitably lead the movable contact 200 to generate a certain degree of deflection, and if the working time of the relay is long, the movable contact 200 is deflected, so that the relay cannot be reset normally, the service performance of a product is influenced, and potential safety hazards are caused.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides the high-voltage direct-current relay with the micro switch, which can greatly reduce the deflection degree of the movable contact piece driven by the poking sleeve through structural improvement, has the effect of preventing the deflection of the movable contact piece, and improves the service life and the sensitivity of a product.
The technical scheme adopted for solving the technical problems is as follows: a high-voltage direct-current relay with a micro switch comprises a push rod, a movable contact piece, a poking sleeve and the micro switch; the toggle sleeve and the movable contact piece are sleeved in the push rod respectively, the push rod is provided with a reducing step, a contact spring is arranged between the reducing step of the push rod and the movable contact piece, and the contact spring pushes the toggle sleeve to a preset limiting part at one end of the push rod through the movable contact piece; the micro switch is arranged in the relay and is arranged at one side of the poking sleeve, a poking rod is arranged at one side of the poking sleeve, and the tail end of the poking rod is matched with the movable arm of the micro switch; the movable contact piece is characterized in that a protruding part at a preset position is arranged on one surface of the poking sleeve facing the movable contact piece, the protruding part is propped against the movable contact piece, a cavity is formed from the middle part to the tail end facing one side of the micro switch at the contact position between the poking sleeve and the movable contact piece, and when the poking sleeve is inclined by the reaction force of the movable arm of the micro switch, the inclined part of the poking sleeve is bent by the cavity, so that the movable contact piece is prevented from being inclined by the influence of the inclination of the poking sleeve.
The preset limiting part is a clamp spring fixed at one end of the push rod.
And a reinforcing rib is also connected between the poking sleeve and the poking rod.
The end of the poking rod is also connected with an elastic poking block, and the poking rod is matched with the movable arm of the micro switch through the poking block.
The height dimension of the cavity is larger than the distance dimension of the over-travel when the dynamic contact and the static contact of the relay are contacted.
The protruding portion is a strip protruding rib, the strip protruding rib is arranged along the axis direction of rotation when the toggle sleeve is inclined, and the preset position of the strip protruding rib is the middle position of the toggle sleeve.
The bottom end surface of the strip-shaped convex rib is arc-shaped.
The protruding portion is a strip protruding rib, the strip protruding rib is arranged along the axis direction perpendicular to the rotation direction when the toggle sleeve is inclined, and the preset position of the strip protruding rib is from the middle position of the toggle sleeve to the tail end of one side of the back micro switch.
The protruding part is a plurality of protruding buds, the protruding buds are arranged along the rotating axial direction when the poking sleeve is inclined, and the preset positions of the protruding buds are the middle positions of the poking sleeve.
The protruding portion is a block protruding rib, and the preset position of the block protruding rib is from the middle position of the poking sleeve to the tail end of one side of the back micro switch.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention adopts the convex extension part with the preset position arranged on one surface of the poking sleeve facing the movable contact piece, the convex extension part is propped against the movable contact piece, so that a cavity is formed from the contact part between the poking sleeve and the movable contact piece from the middle part to the tail end facing one side of the micro switch, and when the poking sleeve is inclined by the reaction force of the movable arm of the micro switch, the cavity is abducted to the inclined part of the poking sleeve, thereby ensuring that the movable contact piece is not influenced by the inclination of the poking sleeve.
2. The invention adopts the structure that the protruding extension part is a strip-shaped protruding rib, the strip-shaped protruding rib is arranged along the axis direction of rotation when the poking sleeve is inclined, and the preset position of the strip-shaped protruding rib is the middle position of the poking sleeve; the bottom end surface of the strip-shaped convex rib is arc-shaped. The structure of the invention converts the original surface contact of the toggle sleeve and the movable contact into the line contact, thereby greatly reducing the skew degree of the movable contact driven by the toggle sleeve, having the effect of preventing the movable contact from being skewed and improving the service life and the sensitivity of the product.
The invention is described in further detail below with reference to the drawings and examples; the high-voltage direct-current relay with the micro switch is not limited to the embodiment.
Drawings
FIG. 1 is a schematic view of a prior art partial construction of a high voltage DC relay with a microswitch;
FIG. 2 is a partially constructed schematic illustration of a first embodiment of the invention;
FIG. 3 is a schematic diagram of a toggle sleeve and movable contact according to a first embodiment of the present invention;
FIG. 4 is a side elevational cross-sectional view of the structure of FIG. 2;
FIG. 5 is a top view of the structure shown in FIG. 2;
FIG. 6 is a schematic illustration of a toggle block mated with a movable arm of a microswitch in accordance with a first embodiment of the invention;
FIG. 7 is a schematic view of a toggle assembly according to a first embodiment of the present invention;
FIG. 8 is a front view of a dial sleeve according to a first embodiment of the present invention;
FIG. 9 is a schematic view of a toggle assembly according to a first embodiment of the present invention (flipped over by an angle);
FIG. 10 is a front view of a toggle housing of a second embodiment of the present invention;
FIG. 11 is a schematic view of a toggle assembly according to a second embodiment of the present invention (flipped over by an angle);
FIG. 12 is a front view of a toggle housing of a third embodiment of the present invention;
FIG. 13 is a schematic view of the structure of a toggle housing (flipped over by an angle) according to a third embodiment of the present invention;
FIG. 14 is a front view of a dial sleeve according to a fourth embodiment of the present invention;
fig. 15 is a schematic structural view (flipped over by an angle) of a toggle housing according to a fourth embodiment of the present invention.
Detailed Description
Example 1
Referring to fig. 2 to 9, the high-voltage direct-current relay with the micro switch comprises a push rod 1, a movable contact piece 2, a poking sleeve 3 and the micro switch 4; the high-voltage direct-current relay is provided with a gasket 51 and a guide plate 52, the gasket 51 and the guide plate 52 are respectively provided with holes, a push rod 1 penetrates through the holes of the gasket 51 and the guide plate 52, a poking sleeve 3 and a movable contact piece 2 are respectively sleeved in the push rod 1, the push rod 1 is provided with a reducing step, a contact spring 21 is arranged between the reducing step of the push rod 1 and the movable contact piece 2, and the contact spring 21 pushes the poking sleeve 3 to a preset limiting part at one end of the push rod 1 through the movable contact piece 2; the other end of the push rod 1 is used for fixing a movable iron core, when the coil is electrified, the movable iron core moves to drive the push rod to move (move upwards), the push rod 1 drives a movable contact 2 arranged at one end of the push rod to enable the movable contact 2 to be in contact with a fixed contact fixed at a corresponding position, and when the coil is powered off, the push rod 1 and the movable iron core 2 are reset under the drive of a reset spring 53 to enable the movable contact 2 to be separated from the fixed contact; the micro switch 4 is arranged in the relay and is arranged at one side of the poking sleeve 3, a poking rod 31 is arranged at one side of the poking sleeve 3, and the tail end of the poking rod 31 is matched with a movable arm 41 of the micro switch 4; the convex part 32 at a preset position is arranged on one surface of the poking sleeve 3 facing the movable contact piece 2, the convex part 32 is propped against the movable contact piece 2, so that a cavity 33 is formed from the contact part between the poking sleeve 3 and the movable contact piece 2 from the middle part to the tail end facing one side of the micro switch, and when the poking sleeve 3 is inclined by the reaction force of the movable arm 41 of the micro switch, the cavity 33 is in a yielding position on the inclined part of the poking sleeve 3, thereby ensuring that the movable contact piece 2 is not inclined by the influence of the inclination of the poking sleeve.
In this embodiment, the preset limiting portion is a clamping spring 11 fixed at one end of the push rod 1.
In this embodiment, a reinforcing rib 34 is further connected between the toggle sleeve 3 and the toggle rod 31.
In this embodiment, the end of the toggle rod 31 is further connected with a resilient toggle block 35, and the toggle rod 31 is matched with the movable arm 41 of the micro switch 4 through the toggle block 35.
The height dimension of the cavity 33 is larger than the distance dimension of the over-travel when the dynamic contact and the static contact of the relay are contacted.
In this embodiment, the protruding portion 32 is a bar-shaped protruding rib 321, the bar-shaped protruding rib 321 is disposed along the axis direction of rotation when the dial sleeve 3 is tilted, and the preset position of the bar-shaped protruding rib 321 is the middle position of the dial sleeve 3.
In this embodiment, the bottom surface of the strip-shaped rib 321 is circular arc.
According to the high-voltage direct-current relay with the micro switch, the strip-shaped convex rib 321 is arranged at the middle part of the stirring sleeve 3, so that only the position of the strip-shaped convex rib 321 between the stirring sleeve 3 and the movable contact piece 2 is contacted, cavities are formed on two sides of the strip-shaped convex rib 321 (namely, the stirring sleeve 3 is not contacted with the movable contact piece 2), the cavity 33 on one side is from the middle part of the stirring sleeve 3 to the tail end facing the micro switch, the cavity 36 on the other side is from the middle part of the stirring sleeve 3 to the tail end facing away from the micro switch, when the stirring sleeve 3 is inclined by the reaction force of the movable arm 41 of the micro switch, the cavity 33 on one side is in a yielding position for the inclined part of the stirring sleeve 3, and the cavity 36 on the other side is not effective because the inclined part of the stirring sleeve 3 is upwarp. Since the toggle sleeve 3 is provided with the through hole 37 for being sleeved into the toggle rod 31, two strip-shaped convex ribs 321 are arranged at the radial position of the through hole 37 respectively.
The invention relates to a high-voltage direct-current relay with a micro switch, which adopts a convex extension part 32 with a preset position arranged on one surface of a stirring sleeve 3 facing a movable contact piece 2, wherein the convex extension part 32 is propped against the movable contact piece, so that a cavity 33 is formed from the contact part between the stirring sleeve 3 and the movable contact piece 2 from the middle part to the tail end facing one side of the micro switch, and when the stirring sleeve 3 is inclined by the reaction force of a movable arm 41 of the micro switch, the inclined part of the stirring sleeve 3 is in a yielding position by the cavity 33, thereby ensuring that the movable contact piece 2 is not influenced by the inclination of the stirring sleeve 3.
The invention relates to a high-voltage direct current relay with a micro switch, which adopts a structure that a protruding part 32 is provided with a strip-shaped protruding rib 321, the strip-shaped protruding rib 321 is arranged along the axis direction of rotation when a poking sleeve is inclined, and the preset position of the strip-shaped protruding rib 321 is the middle position of the poking sleeve 3; the bottom end surface of the strip-shaped convex rib 321 is arc-shaped. The structure of the invention converts the original surface contact of the toggle sleeve 3 and the movable contact 2 into the line contact, thereby greatly reducing the deflection degree of the movable contact driven by the toggle sleeve, playing the role of preventing the deflection of the movable contact and improving the service life and the sensitivity of the product.
Example two
Referring to fig. 10 to 11, the present invention is different from the first embodiment in that the protrusion 32 is a plurality of protrusions 322, the plurality of protrusions 32 are arranged along the axis direction of rotation when the toggle 3 is tilted, and the preset position of the plurality of protrusions 32 is the middle position of the toggle. The two protrusions 32 of the present embodiment are also provided at radial positions of the through hole 37, respectively. The bottom end surface of the protrusion 32 is also circular arc-shaped.
Example III
Referring to fig. 12 to 13, the present invention of a high voltage dc relay with a micro switch is different from the first embodiment in that the protruding portion 32 is a bar-shaped protruding rib 323, the bar-shaped protruding rib 323 is disposed along the direction perpendicular to the axis of rotation when the toggle sleeve is tilted, and the preset position of the bar-shaped protruding rib 323 is from the middle position of the toggle sleeve to the end of the side facing away from the micro switch.
As mentioned in the first embodiment, only the cavity 33 formed from the middle portion to the end toward the side of the micro switch among the cavities at both sides of the axial position of rotation when the dial sleeve 3 is inclined, and therefore, the bar-shaped bead 323 can be arranged in the direction perpendicular to the axial direction of rotation when the dial sleeve is inclined, and the preset position of the bar-shaped bead 323 is from the middle portion of the dial sleeve to the end facing away from the micro switch, so that, in the first embodiment, the cavity from the middle portion of the dial sleeve 3 to the end facing away from the micro switch is not present.
Example IV
Referring to fig. 14 to 15, a dc-dc relay with a micro switch according to the present invention is different from the first embodiment in that the protruding portion 32 is a block-shaped protruding rib 324, and the preset position of the block-shaped protruding rib 324 is from the middle position of the toggle sleeve to the end of the side facing away from the micro switch. The block ribs 324 of the present embodiment function substantially the same as the bar ribs 323 of the third embodiment.
The foregoing is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. While the invention has been described with reference to preferred embodiments, it is not intended to be limiting. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or be modified to equivalent embodiments, without departing from the scope of the technology. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present invention shall fall within the scope of the technical solution of the present invention.
Claims (10)
1. A high-voltage direct-current relay with a micro switch comprises a push rod, a movable contact piece, a poking sleeve and the micro switch; the toggle sleeve and the movable contact piece are sleeved in the push rod respectively, the push rod is provided with a reducing step, a contact spring is arranged between the reducing step of the push rod and the movable contact piece, and the contact spring pushes the toggle sleeve to a preset limiting part at one end of the push rod through the movable contact piece; the micro switch is arranged in the relay and is arranged at one side of the poking sleeve, a poking rod is arranged at one side of the poking sleeve, and the tail end of the poking rod is matched with the movable arm of the micro switch; the method is characterized in that: the movable contact piece is characterized in that a protruding part at a preset position is arranged on one surface of the poking sleeve facing the movable contact piece, the protruding part is propped against the movable contact piece, a cavity is formed from the middle part to the tail end facing one side of the micro switch at the contact position between the poking sleeve and the movable contact piece, and when the poking sleeve is inclined by the reaction force of the movable arm of the micro switch, the inclined part of the poking sleeve is bent by the cavity, so that the movable contact piece is prevented from being inclined by the influence of the inclination of the poking sleeve.
2. The high voltage dc relay with micro switch according to claim 1, wherein: the preset limiting part is a clamp spring fixed at one end of the push rod.
3. The high voltage dc relay with micro switch according to claim 1, wherein: and a reinforcing rib is also connected between the poking sleeve and the poking rod.
4. The high voltage dc relay with micro switch according to claim 1, wherein: the end of the poking rod is also connected with an elastic poking block, and the poking rod is matched with the movable arm of the micro switch through the poking block.
5. The high voltage dc relay with micro switch according to claim 1, wherein: the height dimension of the cavity is larger than the distance dimension of the over-travel when the dynamic contact and the static contact of the relay are contacted.
6. The high voltage dc relay with micro switch according to claim 1 or 2 or 3 or 4 or 5, characterized in that: the protruding portion is a strip protruding rib, the strip protruding rib is arranged along the axis direction of rotation when the toggle sleeve is inclined, and the preset position of the strip protruding rib is the middle position of the toggle sleeve.
7. The high voltage dc relay with micro switch according to claim 6, wherein: the bottom end surface of the strip-shaped convex rib is arc-shaped.
8. The high voltage dc relay with micro switch according to claim 1 or 2 or 3 or 4 or 5, characterized in that: the protruding portion is a strip protruding rib, the strip protruding rib is arranged along the axis direction perpendicular to the rotation direction when the toggle sleeve is inclined, and the preset position of the strip protruding rib is from the middle position of the toggle sleeve to the tail end of one side of the back micro switch.
9. The high voltage dc relay with micro switch according to claim 1 or 2 or 3 or 4 or 5, characterized in that: the protruding part is a plurality of protruding buds, the protruding buds are arranged along the rotating axial direction when the poking sleeve is inclined, and the preset positions of the protruding buds are the middle positions of the poking sleeve.
10. The high voltage dc relay with micro switch according to claim 1 or 2 or 3 or 4 or 5, characterized in that: the protruding portion is a block protruding rib, and the preset position of the block protruding rib is from the middle position of the poking sleeve to the tail end of one side of the back micro switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810297163.9A CN108461355B (en) | 2018-04-04 | 2018-04-04 | High-voltage direct-current relay with micro switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810297163.9A CN108461355B (en) | 2018-04-04 | 2018-04-04 | High-voltage direct-current relay with micro switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108461355A CN108461355A (en) | 2018-08-28 |
| CN108461355B true CN108461355B (en) | 2023-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810297163.9A Active CN108461355B (en) | 2018-04-04 | 2018-04-04 | High-voltage direct-current relay with micro switch |
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| CN (1) | CN108461355B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108461355A (en) | 2018-08-28 |
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