CN205595266U - Load switch - switch -fuse combination electrical equipment trip gear - Google Patents
Load switch - switch -fuse combination electrical equipment trip gear Download PDFInfo
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- CN205595266U CN205595266U CN201620358648.0U CN201620358648U CN205595266U CN 205595266 U CN205595266 U CN 205595266U CN 201620358648 U CN201620358648 U CN 201620358648U CN 205595266 U CN205595266 U CN 205595266U
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- fuse combination
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- 230000005540 biological transmission Effects 0.000 claims description 23
- 230000000670 limiting effect Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000033001 locomotion Effects 0.000 abstract description 4
- 238000003825 pressing Methods 0.000 description 9
- 238000004146 energy storage Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a load switch switch -fuse combination electrical equipment trip gear relates to electrical equipment. Load switch switch -fuse combination electrical equipment trip gear includes: the fixed plate, be equipped with cam drive mechanism on the fixed plate, cam drive mechanism sets up in the impinger top, cam drive mechanism and slide contact, so that the slide along with cam drive mechanism's rotation and removing, and then the separating brake operation is realized to the contact interlock that drives load switch, change power and travel direction through cam drive mechanism many times, simplified trip gear's structure, make load switch switch -fuse combination electrical equipment simple structure is compact, because the motion of cam drive mechanism is the positive drive, the separating brake reaction that makes the impinger action arouse is more reliable, has improved load switch switch -fuse combination electrical equipment 's stability and reliability.
Description
Technical Field
The utility model relates to electrical equipment especially relates to a load switch-fuse combined electrical apparatus trip gear.
Background
The load switch-fuse combined electrical appliance is a switch device, is generally used for controlling and protecting power supply equipment which is not frequently operated, and comprises a load switch, a fuse and a tripping device connected between the load switch and the fuse; the fuse is provided with an impactor, when the fuse body of the fuse fuses, the impactor impacts the tripping device, and the load switch is switched off through the tripping device.
In the prior art, the tripping device generally comprises a link mechanism, wherein the link mechanism comprises a plurality of connecting rods and a crank arm; the head end of the connecting rod mechanism is used for contacting with the impactor, and the tail end of the connecting rod mechanism is connected with the spring energy storage assembly of the load switch; when fault currents such as short-circuit current and the like appear in a circuit of the load switch, when the fuse fuses, the striker pops up and strikes the head end of the link mechanism, and the spring energy storage assembly is stirred through the tail end of the link mechanism to release spring potential energy, so that the load switch is switched off. However, the link mechanism is complicated in structure and the motion is subjected to multiple conversions, so that the reliability thereof is low.
SUMMERY OF THE UTILITY MODEL
To overcome the above-mentioned defects in the prior art, the utility model provides a load switch-fuse combined electrical apparatus tripping device can improve load switch-fuse combined electrical apparatus's stability and reliability.
The utility model discloses a first aspect provides a load switch-fuse combined electrical apparatus trip gear, include: the device comprises a fixed plate, wherein a cam transmission mechanism is arranged on the fixed plate and is arranged above an impactor, and the cam transmission mechanism is in contact with a sliding plate so that the sliding plate moves along with the rotation of the cam transmission mechanism and further drives a contact of a load switch to be linked.
Furthermore, a sliding plate base is further arranged on the fixing plate, and the sliding plate is connected with the sliding plate base through a second bolt; and a sliding groove matched with the screw rod of the second bolt is arranged on the sliding plate base, so that the sliding plate can move up and down relative to the sliding plate base.
Further, the cam transmission mechanism includes: the first cams are rotatably connected to the fixed plate, first cams bearing impact are arranged above each impactor, and the first cams are connected through a connecting plate; the sliding plate base is rotatably connected with a second cam, the second cam is further rotatably connected with the connecting plate, and the second cam is in contact with the sliding plate.
Furthermore, at least one supporting plate for limiting the rotation direction of the first cam is arranged on the fixing plate.
Further, the second cam is rotatably connected to the sliding plate base through a first bolt.
Further, a top plate vertically extends on the sliding plate and is used for being in contact with the second cam.
Furthermore, a pressing plate is arranged at one end, away from the cam transmission mechanism, of the sliding plate, the pressing plate is rotatably connected to the sliding plate, and the pressing plate is used for driving the contact linkage of the load switch.
Furthermore, one end of the pressing plate, which is far away from the sliding plate, is provided with a mounting plate, and the mounting plate is used for mounting a load switch.
Further, the load switch-fuse combined electrical apparatus trip gear still includes: the separating brake coil mounting panel, install separating brake coil on the separating brake coil mounting panel, be equipped with the separating brake touch panel on the slide, the separating brake touch panel sets up separating brake coil top, in order to pass through separating brake coil upwards supports the separating brake touch panel drives the slide removes.
Further, the opening coil mounting plate is fixed on the fixing plate; and a fusing indication board is arranged on the opening coil mounting plate.
The utility model provides a load switch-fuse combined electrical apparatus trip gear, trip gear includes: the cam transmission mechanism is arranged above the impactor and is in contact with the sliding plate, so that the sliding plate moves along with the rotation of the cam transmission mechanism, the contact linkage of the load switch is further driven, the opening operation is realized, the force and the movement direction are repeatedly changed through the cam transmission mechanism, the structure of the tripping device is greatly simplified, the structure of the load switch-fuse combined electrical appliance is simple and compact, the movement of the cam transmission mechanism belongs to rigid connection, the opening reaction caused by the action of the impactor is more reliable, and the stability and the reliability of the load switch-fuse combined electrical appliance are improved.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a tripping device of the load switch-fuse combined electrical appliance of the present invention;
fig. 2 is a schematic structural diagram of another embodiment of the tripping device of the load switch-fuse combined electrical appliance of the present invention.
Wherein,
10-a striker; 21-fixing the plate;
22-cam drive mechanism; 221-a first cam;
222-a connecting plate; 223-a second cam;
224-a support plate; 23-a slide plate;
231-a skateboard base; 232-a second bolt;
233-chute; 234-top plate;
235-opening contact plate; 24-a platen;
25-a mounting plate; 26-a switching-off coil mounting plate;
27-fusing indicator.
Detailed Description
Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Fig. 1 is a schematic structural diagram of an embodiment of a tripping device of the load switch-fuse combined electrical appliance of the present invention; referring to fig. 1, the present embodiment provides a tripping device for a load switch-fuse combination electrical apparatus, including: the fixed plate 21 is provided with a cam transmission mechanism 22 on the fixed plate 21, the cam transmission mechanism 22 is arranged above the impactor 10, and the cam transmission mechanism 22 is in contact with the sliding plate 23, so that the sliding plate 23 moves along with the rotation of the cam transmission mechanism 22, and further the contact linkage of the load switch is driven.
Specifically, the load switch may be a three-pole load switch, where each pole corresponds to a fuse; when the striker 10 of any fuse is ejected, the contact of the load switch can be driven to be linked through the tripping device, so that the brake is switched off. In this embodiment, the fixing plate 21 may be fixed to the housing of the load switch; the striker 10 may be a powder type striker or a spring type striker; the striker 10 may be replaced with a striker.
In the tripping device of the load switch-fuse combined electrical apparatus provided in this embodiment, the fuse is linked with the load switch through the tripping device, and the tripping device includes: the cam transmission mechanism 22 is arranged above the striker 10, the cam transmission mechanism 22 is in contact with the sliding plate 23, so that the sliding plate 23 moves along with the rotation of the cam transmission mechanism 22, the contact linkage of the load switch is further driven, the opening operation is realized, the force and the moving direction are changed for many times through the cam transmission mechanism, the structure of the tripping device is greatly simplified, the structure of the load switch fuse combined electrical appliance is simple and compact, the assembly time of the load switch fuse combined electrical appliance is favorably reduced, the moving stroke of the cam transmission mechanism is reliable, the opening reaction caused by the action of the striker 10 is more reliable, the stability and the reliability of the load switch fuse combined electrical appliance are improved, and the failure rate is reduced.
Fig. 2 is a schematic structural diagram of another embodiment of the tripping device of the load switch-fuse combined electrical appliance of the present invention; referring to fig. 2, further, a sliding plate base 231 is further disposed on the fixing plate 21, and the sliding plate 23 is connected to the sliding plate base 231 through a second bolt 232; the slide plate base 231 is provided with a slide groove 233 engaged with the screw of the second bolt 232 to move the slide plate 23 up and down with respect to the slide plate base 231.
Further, the cam transmission mechanism 22 includes: a first cam 221 rotatably connected to the fixed plate 21, a first cam 221 for bearing impact is arranged above each impactor 10, and the first cams 221 are connected through a connecting plate 222; the slide plate base 231 is rotatably connected with a second cam 223, the second cam 223 is also rotatably connected with the connecting plate 222, and the second cam 223 is contacted with the slide plate 23.
In this embodiment, when the load switch is a three-phase switch, there are three impactors 10 correspondingly, a first cam 221 is disposed above each impacter 10, the three first cams 221 can be connected by a connecting plate 222, and the connecting plate 222 can be in a rod shape; the first cam 221 can be rotatably connected to the fixing plate 21 through a first bolt, and the first cam 221 is fixedly connected to the connecting plate 222; the second cam 223 is rotatably connected to the sliding plate base 231 by a first bolt, and the second cam 223 is rotatably connected to the connecting plate 222 by a first bolt to limit the rotation direction of the second cam 223; at least one supporting plate 224 for limiting the rotation direction of the first cam 221 is provided on the fixing plate 21.
In this embodiment, a top plate 234 vertically extends on the sliding plate 23 for contacting with the second cam 223, and when the second cam 223 rotates, the sliding plate 23 is driven by the top plate 234 to move.
Furthermore, a pressure plate 24 is arranged on the sliding plate 23 away from the cam transmission mechanism 22, the pressure plate 24 is rotatably connected to the sliding plate 23, an installation plate 25 is arranged on one end of the pressure plate 24 away from the sliding plate 23, the installation plate 25 is installed on the load switch, and the pressure plate 24 is used for driving an energy storage release device of the load switch. Preferably, the pressure plate 24 is rotatably connected to the slide plate 23 by a first bolt.
The switching-off process of the load switch-fuse combined electrical apparatus of the present embodiment may be:
when the current of the melt passing through the fuse exceeds the rated current, the melt is heated due to the action of joule heat, and when the temperature of the melt reaches the melting temperature, the melt is fused, and the striker 10 pops up and acts from bottom to top; the striker 10 abuts against the first cam 221, so that the first cam 221 rotates clockwise under the abutting action of the striker 10 and the limiting action of the support plate, the connecting rod moves rightwards and drives the second cam 223 to rotate anticlockwise; under the driving of the second cam 223 and the limiting action of the sliding groove 233, the sliding plate 23 moves upwards and drives the pressing plate 24 to rotate clockwise, so that one end of the pressing plate 24, which is far away from the sliding plate 23, abuts against an energy storage release device of the load switch, the load switch is switched off, and the phase-missing operation of the transformer is avoided.
Further, the load switch-fuse combination further comprises: the opening coil mounting plate 26 is provided with an opening coil, the sliding plate 23 is provided with an opening touch plate 235, and the opening touch plate 235 is arranged above the opening coil to upwardly abut against the opening touch plate 235 through the opening coil to drive the sliding plate 23 to move.
In this embodiment, the opening coil mounting plate 26 may be fixed on the fixing plate 21; the distance between the opening coil mounting plate 26 and the opening contact plate 235 can be set according to actual needs; the opening contact plate 235 and the top plate 234 are respectively disposed on both sides of the sliding plate 23. Preferably, the opening coil mounting plate 26 is further provided with a fuse indicator 27 for indicating the fuse melt.
The switching-off process of the load switch-fuse combined electrical apparatus of the present embodiment may be:
when the transformer of the load switch-fuse combined electrical appliance is overheated, the opening coil arranged on the opening coil mounting plate 26 generates an action of upwards resisting against the opening touch plate 235; under the upward abutting action of the opening coil, the sliding plate 23 moves upward and drives the pressing plate 24 to rotate clockwise, so that one end of the pressing plate 24, which is far away from the sliding plate 23, abuts against an energy storage release device of the load switch, the load switch is enabled to realize opening operation, and the phase-missing operation of the transformer is avoided.
In the above embodiments, the reset of the pressing plate 24 can be realized by means of the dead weight of the tripping device in the load switch-fuse combination electrical appliance.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A load switch-fuse combination trip unit, comprising: the device comprises a fixed plate, wherein a cam transmission mechanism is arranged on the fixed plate and is arranged above an impactor, and the cam transmission mechanism is in contact with a sliding plate so that the sliding plate moves along with the rotation of the cam transmission mechanism and further drives a contact of a load switch to be linked.
2. The load switch-fuse combination trip unit of claim 1, wherein a slide base is further provided on the fixed plate, the slide being connected to the slide base by a second bolt; and a sliding groove matched with the screw rod of the second bolt is arranged on the sliding plate base, so that the sliding plate can move up and down relative to the sliding plate base.
3. The load switch-fuse combination trip unit of claim 2, wherein the cam gear comprises: the first cams are rotatably connected to the fixed plate, first cams bearing impact are arranged above each impactor, and the first cams are connected through a connecting plate; the sliding plate base is rotatably connected with a second cam, the second cam is further rotatably connected with the connecting plate, and the second cam is in contact with the sliding plate.
4. The load switch-fuse combination trip unit of claim 3, wherein at least one support plate is provided on the fixed plate for limiting the rotational direction of the first cam.
5. The load switch-fuse combination trip unit of claim 3, wherein the second cam is pivotally attached to the slide base by a first bolt.
6. The load switch-fuse combination trip unit of claim 4, wherein a top plate extends vertically from the slide plate for contacting the second cam.
7. A load switch-fuse combination trip unit according to any of claims 1 to 6, wherein a pressure plate is provided at an end of the slide facing away from the cam drive, the pressure plate being rotatably connected to the slide and being adapted to drive the contacts of the load switch into engagement.
8. The load switch-fuse combination trip unit of claim 7, wherein an end of the pressure plate facing away from the slide plate is provided with a mounting plate for mounting a load switch.
9. The load switch-fuse combination trip unit of any one of claims 1-6, further comprising: the separating brake coil mounting panel, install separating brake coil on the separating brake coil mounting panel, be equipped with the separating brake touch panel on the slide, the separating brake touch panel sets up separating brake coil top, in order to pass through separating brake coil upwards supports the separating brake touch panel drives the slide removes.
10. The load switch-fuse combination trip unit of claim 9, wherein the trip coil mounting plate is secured to the fixed plate; and a fusing indication board is arranged on the opening coil mounting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620358648.0U CN205595266U (en) | 2016-04-25 | 2016-04-25 | Load switch - switch -fuse combination electrical equipment trip gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620358648.0U CN205595266U (en) | 2016-04-25 | 2016-04-25 | Load switch - switch -fuse combination electrical equipment trip gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205595266U true CN205595266U (en) | 2016-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620358648.0U Active CN205595266U (en) | 2016-04-25 | 2016-04-25 | Load switch - switch -fuse combination electrical equipment trip gear |
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| Country | Link |
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| CN (1) | CN205595266U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107845536A (en) * | 2017-10-27 | 2018-03-27 | 深圳市惠程电气股份有限公司 | A kind of trip gear for gas-insulated ring network cabinet |
| CN110459427A (en) * | 2019-06-27 | 2019-11-15 | 许继集团有限公司 | A kind of switch-fuse combination and its trip gear |
| CN112825294A (en) * | 2019-11-21 | 2021-05-21 | 河南森源电气股份有限公司 | Tripping mechanism of fuse |
-
2016
- 2016-04-25 CN CN201620358648.0U patent/CN205595266U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107845536A (en) * | 2017-10-27 | 2018-03-27 | 深圳市惠程电气股份有限公司 | A kind of trip gear for gas-insulated ring network cabinet |
| CN110459427A (en) * | 2019-06-27 | 2019-11-15 | 许继集团有限公司 | A kind of switch-fuse combination and its trip gear |
| CN112825294A (en) * | 2019-11-21 | 2021-05-21 | 河南森源电气股份有限公司 | Tripping mechanism of fuse |
| CN112825294B (en) * | 2019-11-21 | 2022-11-29 | 河南森源电气股份有限公司 | Tripping mechanism of fuse |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |