CN202172023U - Transmission mechanism of auxiliary contact device capable of temporarily contacting - Google Patents
Transmission mechanism of auxiliary contact device capable of temporarily contacting Download PDFInfo
- Publication number
- CN202172023U CN202172023U CN 201120243614 CN201120243614U CN202172023U CN 202172023 U CN202172023 U CN 202172023U CN 201120243614 CN201120243614 CN 201120243614 CN 201120243614 U CN201120243614 U CN 201120243614U CN 202172023 U CN202172023 U CN 202172023U
- Authority
- CN
- China
- Prior art keywords
- auxiliary contact
- contact
- contactor
- backstop
- driving shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Mechanisms For Operating Contacts (AREA)
Abstract
A transmission mechanism of an auxiliary contact device capable of temporarily contacting comprises an auxiliary contact support for supporting a moving auxiliary contact, wherein the auxiliary contact support is connected with a driving part supported by a main contact of a contactor via a connecting mechanism; the connecting mechanism comprises a shaft hole vertically arranged in the auxiliary contact support, a chute transversely arranged in the auxiliary contact support, an elastic element, a backstop and a driving shaft, wherein the chute is communicated with the shaft hole, the elastic element and the backstop are arranged in the chute, the elastic element pushes the backstop to the shaft hole, the driving shaft is provided with protrusions, a lower end of the driving shaft is connected with the driving part, an upper end of the driving shaft is inserted into the shaft hole, and the upper end of the driving shaft clamps the backstop via the protrusions on the driving shaft so as to realize associated movement of the main contact of the contactor and the auxiliary contact device. The transmission mechanism, a static auxiliary contact and the moving auxiliary contact can form the auxiliary contact device which is capable of temporarily contacting and can conveniently combine with the contactor, thereby forming a contactor provided with the auxiliary contact device. The transmission mechanism is high in reliability and low in cost.
Description
Technical field
The utility model relates to the transmission mechanism that is used for the cooperative a kind of auxiliary contact device that can temporarily contact of same contactor (electromagnetic type, electronic type, magneto etc.), belongs to the low-voltage electrical apparatus field.
Background technology
Contactor is as big, the wide control apparatus of a kind of amount; Be used at control circuit; Realize remote connection, open circuit and control motor starting, stop, turning round in the switching, power factor compensation etc. of disjunction, capacitor group; And can be combined into motor starter with suitable thermal relay or electronic type protective device, the circuit that protection possibly transshipped also can make up with the auxiliary contact device; Protection has big capacitive, inductive load or the circuit of instantaneous large-current is arranged, and is widely used in industries such as light industry, metallurgy, chemical industry, colliery, machinery, lifting, railway, boats and ships, communication.
The auxiliary contact device both can be installed in the front of contactor, also can be installed in the side of contactor.Each auxiliary contact device comprises a contact that is called as auxiliary contact at least, as a subsidiary loop, and the opening and the State Control (related) of closing of this subsidiary loop by the open and close of this contactor.
In the circuit arrangement that these auxiliary contact devices also are usually used in charging, as: capacitive or inductive loads such as motor, firing equipment, for improving the power factor (cos φ) of circuit.Auxiliary contact is used to guarantee the power supply of the resistance of the parallelly connected setting of one or more main contacts with contactor, and closed before the main contact closure of this contactor, then, after the main contact closure of this contactor, breaks off.Therefore, the resistance of a very short time can be between auxiliary contact closure and the short circuit that causes by main contact, inserted, like this, the peak value of the closed path of main contact can be reduced.
The auxiliary contact device that this type can temporarily contact has very complicated structure usually, need auxiliary contact broken off at the main contact period of contact and with the main contact off period auxiliary contact is connected again.Therefore, this current peak of auxiliary contact device intractable of the temporary transient contact of this type, and this current peak is not always very little.
At present; On the world, domestic market; The auxiliary contact device that major part can temporarily contact is can be realized by the material of the magnetic attraction of magnetic material and a counter-force spring through a magnetic material (permanent magnet); The motion of auxiliary contact device and main noddle on contactor are supported related, and motion comprises two parts: comprise the movement parts of a magnet, comprise the auxiliary contact support of a steel plate (or other can by the material of attraction).When main noddle on contactor when being disconnected to closure; Dynamic and static auxiliary contact also the movement parts of association drive down by be disconnected to closure and reach preset the overtravel position after; Magnet and steel plate (or other can by the material of attraction) be thrown off; Moving auxiliary contact part is by reaction spring jack-up, and dynamic and static auxiliary contact breaks off.And when the iron core of contactor by being closed to when breaking off, support upwards jack-up of related movement parts (comprising magnet) with main noddle on contactor, and steel plate (or other can by the material of attraction) is pulled together, be closed getting ready next time.
The auxiliary contact device that can temporarily contact realizes that in this way function is simple, but reliability is difficult to guarantee that magnet is behind closure, the certain number of times of disconnection; Magnetic force can be along with progressively decay and even disappearance under the factors such as influence of action frequency, impulsive force, ambient temperature, surrounding magnetic field; Be that magnetic force is uncontrollable, the preset overtravel of auxiliary contact device is reduced, reduce useful life; Even possibly cause disabler; And the permanent magnet cost is higher, and anti-impact force is little etc., is unfavorable for the development of this series products and popularizes.
The utility model content
In view of above-mentioned background, the purpose of the utility model provides and a kind ofly can satisfy instructions for use, good reliability, the transmission mechanism of the lower-cost auxiliary contact device that can temporarily contact.
For achieving the above object, the utility model adopts following technical scheme:
A kind of transmission mechanism of the auxiliary contact device that can temporarily contact comprises the auxiliary contact support of supporting moving auxiliary contact, and it is held to levy and is:
Said auxiliary contact support connects the driving link by the main contact support driving of contactor through bindiny mechanism:
Said bindiny mechanism comprises:
Axis hole of in said auxiliary contact support, vertically offering and the chute of laterally offering, chute is communicated with axis hole:
Flexible member and backstop are contained in the said chute, and flexible member is pushed backstop to axis hole:
Driving shaft, driving shaft is provided with projection, and the lower end of driving shaft is connected with said driving link:
Insert in the said axis hole upper end of driving shaft, and block backstop through the projection on the driving shaft, realizes the main contact of contactor and the coupled movements of auxiliary contact device.
Further:
The lower end of said driving link is provided with the hook that is connected with the main contact support of said contactor.
The upper and lower surface of the projection on the said driving shaft is asymmetric, and the gradient of upper surface is less than the gradient of lower surface.
The beneficial effect of the utility model is:
Form through hook realizes and guarantees: the smooth hook of contact support and driving link, disengagement, the circulation of hook again, simple in structure, be easy to realize, the reliability height, low cost of manufacture.
Description of drawings
Fig. 1 forms sketch map for the utility model main parts size:
Fig. 2 is the utility model driving link structural representation:
Fig. 3 is the utility model auxiliary contact holding components:
The endoporus that Fig. 4 supports for auxiliary contact, the partial schematic sectional view of slot part:
Sketch map when Fig. 5 is in normal condition (hook) for the utility model (the auxiliary contact support is the working portion partial sectional view):
Sketch map when Fig. 6 is in disengaged condition for the utility model (the auxiliary contact support is the working portion partial sectional view).
Embodiment
The utility model provides a kind of transmission mechanism of the auxiliary contact device that can temporarily contact; The auxiliary contact device that it can temporarily contact with compositions such as quiet auxiliary contact, moving auxiliary contacts; The auxiliary contact device that this can temporarily contact can make up with contactor easily, constitutes the contactor of the auxiliary contact device that has temporary transient contact.
The auxiliary contact device that this can temporarily contact comprises a casing, and the transmission mechanism of the auxiliary contact device that can temporarily contact, quiet auxiliary contact, moving auxiliary contact etc. are contained in this casing.
The transmission mechanism of the auxiliary contact device that this can temporarily contact comprises the auxiliary contact support of supporting moving auxiliary contact; The auxiliary contact support connects the driving link by the main contact support driving of contactor through bindiny mechanism: bindiny mechanism comprises: axis hole of in the auxiliary contact support, vertically offering and the chute of laterally offering; Chute is communicated with axis hole: flexible member and backstop; Be contained in the chute; Flexible member is pushed backstop to axis hole: driving shaft, and driving shaft is provided with projection, and the lower end of driving shaft is connected with driving link: insert in the axis hole upper end of driving shaft; And block backstop through the projection on the driving shaft, realize the main contact of contactor and the coupled movements of auxiliary contact device.
When in the shaft insertion hole of driving link; The jut compressing backstop of axle; When jut gives the power value deficiency of backstop so that during deformation of elastic components, this jut is blocked by backstop, this moment, driving link was supported coupled movements with auxiliary contact: the power value that gives flexible member when backstop is during above the deformation power value of flexible member; Backstop is pushed in groove and moves to the direction of leaving the hole; The situation that this moment, jut and backstop were stuck changes, and both separate, and jut leaves the position of backstop.
Become as a whole auxiliary contact holding components to make up with above-mentioned with the driving link that the axle of being with projection belongs to; Driving link can be hooked on the main contact of contactor and support; And with the driving campaign of main contact support; Realize associated movement, and when moving to certain position or time, realize driving link and auxiliary contact support disengagement.
Under nature (inoperative) state, the main contact of contactor is in open position, and the axle of driving link inserts in the hole of auxiliary contact support, and the lower surface of jut is on the top of backstop.When the energising of the control coil of contactor, the main contact support drives the driving link motion, when the auxiliary contact support drive moving auxiliary contact and quiet auxiliary contact contact and accomplish be scheduled to overtravel after; The auxiliary contact support arrives spacing position and can not continue to move again, and driving link continues to move under the main contact support drives, at this moment; The lower surface extruding backstop of the jut of axle, backstop pressuring elastic element and make the flexible member compression, backstop certain stroke that can slide along the lower surface of the jut of axle; Driving link and auxiliary contact support separate, and after separating, backstop is no longer stressed; Flexible member resets and the position when making backstop get back to nature; The auxiliary contact support then pops up under the effect of reaction spring, breaks off auxiliary dynamic and static contact, realizes temporary transient contact back disjunction.
Control coil dead electricity when contactor; The main contact support drives the opposite direction motion of driving link to the direction of motion of control coil energising; When the upper surface of jut of the axle of driving link moves to the stop dog position of auxiliary contact holding components; Because of being supported under the position-limiting action, can not move auxiliary contact; The upper surface of the jut of the axle of driving link pushes flexible member through backstop, and makes backstop behind the certain stroke of slide of the jut of axle, and the lower surface of the jut of axle contacts with backstop; Flexible member resets and makes backstop get back to original position, and the position when making each several part be returned to nature also remains on the state of blocking with the lower surface of the jut of axle.
Further specify below in conjunction with accompanying drawing and embodiment:
Shown in Figure 1 is the main parts size of the transmission mechanism of the auxiliary contact device that can temporarily contact.The transmission mechanism of the auxiliary contact device that can temporarily connect mainly supports 1, driving link 2, ball 3 (being backstop), a spring 4 (being flexible member), a plug 5 to form by auxiliary contact.
What Fig. 2 described is the driving link structure.Have one 24 on the driving link 2, this axle 24 is provided with projection 25, and the upper and lower surface of this projection 25 is asymmetric, and upper surface 21 gradients are less, and lower surface 22 gradients are bigger.Two hooks 23 are arranged at the bottom of driving link 2, can be hooked in the contact support of main contactor, and by its driving.
What Fig. 3 described is the auxiliary contact holding components, and what Fig. 4 described is endoporus, the slot part partial sectional view that this auxiliary contact is supported.
Moving auxiliary contact 7 and touch spring 6 are housed in the auxiliary contact support 1 that Fig. 3 shows; The bottom is a reaction spring 8; These reaction spring 8 lower ends act on the casing of the auxiliary contact device that can temporarily contact, and auxiliary contact are supported in remain on dynamic and static auxiliary contact when not stressing to be in off-state.
What Fig. 4 described is that auxiliary contact is supported the vertical hole 11 and transverse groove 12 on 1, the position of sliding for auxiliary contact support 1 and axle 24 in hole 11, and groove 12 is for adorning the position of ball 3, spring 4.
Fig. 5 describes is the transmission mechanism of the auxiliary contact device that can temporarily the contact sketch map (the auxiliary contact support is the working portion partial sectional view) when being in nature (inoperative) state.Under non operating state, when promptly the control coil of contactor was not switched on, the main contact that two of the driving link 2 of this mechanism hooks 23 are hooked on contactor supported, blocked ball 3 by the lower surface 22 of jut 25 positions of axle 24.Auxiliary contact parts mounting means shown in this figure is: a ball 3 and spring 4 are packed in the groove 12 of auxiliary contact support 1 successively, clog the end of this groove 12 with plug 5.
Fig. 6 describes is the transmission mechanism of the auxiliary contact device that can temporarily contact sketch map (the auxiliary contact support is the working portion partial sectional view) when being in disengaged condition.When the control coil energising of contactor finished main contact support campaign, mechanism was in this kind state, and the jut 25 of driving link 2 breaks away from ball 3 fully, is in a position under it.
Describe in the face of this auxiliary contact equipment mechanism action step and principle that can temporarily contact down:
1. contact process: a complete actuation cycle is in off-state shown in Figure 5 from this mechanism and begins, and when the control coil energising of contactor, it is descending that the main contact support drives the driving link 2 of this mechanism; Jut 25 extruded beads 3 of the axle 24 on the driving link 2; At this moment, ball 3 is the lower surface 22 of the jut 25 of axle 24 with the contact-making surface of axle 24, and these lower surface 22 gradients are bigger; If disengagement needs relatively large power; The power value that makes driving link 2 give ball 3 is not enough to compress spring 4 throws off lower surface 22 and ball 3, so auxiliary contact support 1 descending thereupon certain stroke under the driving of driving link 2 supports the moving auxiliary contact 7 of 1 drive to contact with quiet auxiliary contact until auxiliary contact; In this process, the active contact of contactor can not be connected with main fixed contact.
Moving auxiliary contact 7 and after quiet auxiliary contact contacted, the main contact support of contactor still continued to move downward, arrive certain stroke after; The active contact of contactor and main fixed contact are connected; The main contact support continues to move downward predetermined stroke again, arrives the spacing position (lower limit) of said casing and can not continue to move again, at this moment; The active contact of contactor and main fixed contact are closed, and the dynamic and static auxiliary contact of said mechanism still remains closed (position as shown in Figure 5).
2. disconnection process: contact and move to predetermined stroke with quiet auxiliary contact when auxiliary contact support 1 drives moving auxiliary contact 7; Arrive the spacing position (lower limit) of said casing and can not continue to move the time, driving link 2 still continues to move downward under the driving of the main contact support of contactor again, this moment, the lower surface 22 of axle 24 jut 25 produced relatively large power extruded bead 3; Ball 3 pressuring springs 4; Make spring 4 be compressed to certain stroke, ball 3 is along lower surface 22 certain stroke that slides, cross the jut 25 (dead point) of axle 24 after; Axle 24 is thrown off with ball 3; Dynamic and static auxiliary contact breaks off, and makes driving link 2 and auxiliary contact support open in 1 minute, resets after spring 4 does not stress and the position when making ball 3 get back to nature; Driving link 2 continues to move downward with the main contact support, till the main contact support is no longer moved.Auxiliary contact support 1 then pops up original position and can not continue to move upward (upper limit) under the effect of reaction spring 8; Thereby make moving auxiliary contact 7 and quiet auxiliary contact break off; Realized the temporary transient contact back disjunction of dynamic and static auxiliary contact; At this moment, the active contact of contactor, main fixed contact still are in closure state (position as shown in Figure 6).
3. reseting procedure: the control coil dead electricity of main contactor, the main contact support of contactor drives driving link 2 and moves upward, and the upper surface 21 of the jut 25 of axle 24 moves to ball 3 positions on driving link 2; Auxiliary contact support 1 can not move up under the upper limit effect, the upper surface 21 compressing balls 3 of the jut 25 of axle 24 on the driving link 2, ball 3 pressuring springs 4; Make spring 4 be compressed to certain stroke, ball 3 is along upper surface 21 certain stroke that slides, cross the jut 25 (dead point) of axle 24 after; Ball 3 rebounds under the pressure of spring, blocks the lower surface of jut 25, because upper surface 21 gradients are less; Be easier to be compressed the back smoothly through steel ball 3 at spring 4; After treating that jut 25 passes through, spring 4 resets and makes ball 3 get back to the home position, and position when making each several part be returned to nature and the jut 25 that remains on the driving link 2 axle 24 block state with ball 3; At this moment, auxiliary contact support 1 and driving link 2 link together again (as shown in Figure 5).In this process, dynamic and static auxiliary contact position does not change, and promptly still is in the disjunction position of breaking off process prescription; The active contact of contactor is under the drive that main contact is supported; Move upward and break off with main fixed contact behind certain stroke, thus, get into the initial state of next contact process.
In other embodiment of the utility model:
Backstop in the groove 12 also can be one of structure of square, cuboid, cylinder, cone, shuttle body, hangs driving link 2 and can require to accomplish contact, disconnection, reset function under the situation as long as can collude.
The flexible member that applies elastic force to backstop in the groove 12 also can be shell fragment, as long as can and require under the situation backstop to be moved to the backstop application of force.
The above embodiments do not constitute any type of restriction to the desired protection range of the utility model; Claims of the utility model have covered all modifications and change; Therefore, making various modifications to the foregoing description all belongs in the protection range of the utility model with changing.
Claims (3)
1. the transmission mechanism of the auxiliary contact device that can temporarily contact comprises the auxiliary contact support of supporting moving auxiliary contact, it is characterized in that:
Said auxiliary contact support connects the driving link by the main contact support driving of contactor through bindiny mechanism;
Said bindiny mechanism comprises:
Axis hole of in said auxiliary contact support, vertically offering and the chute of laterally offering, chute is communicated with axis hole;
Flexible member and backstop are contained in the said chute, and flexible member is pushed backstop to axis hole;
Driving shaft, driving shaft is provided with projection, and the lower end of driving shaft is connected with said driving link;
Insert in the said axis hole upper end of driving shaft, and block backstop through the projection on the driving shaft, realizes the main contact of contactor and the coupled movements of auxiliary contact device.
2. the transmission mechanism of the auxiliary contact device that can temporarily contact as claimed in claim 1 is characterized in that:
The lower end of said driving link is provided with the hook that is connected with the main contact support of said contactor.
3. the transmission mechanism of the auxiliary contact device that can temporarily contact as claimed in claim 1 is characterized in that:
The upper and lower surface of the projection on the said driving shaft is asymmetric, and the gradient of upper surface is less than the gradient of lower surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120243614 CN202172023U (en) | 2011-07-11 | 2011-07-11 | Transmission mechanism of auxiliary contact device capable of temporarily contacting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120243614 CN202172023U (en) | 2011-07-11 | 2011-07-11 | Transmission mechanism of auxiliary contact device capable of temporarily contacting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202172023U true CN202172023U (en) | 2012-03-21 |
Family
ID=45830213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120243614 Expired - Lifetime CN202172023U (en) | 2011-07-11 | 2011-07-11 | Transmission mechanism of auxiliary contact device capable of temporarily contacting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202172023U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102881516A (en) * | 2011-07-11 | 2013-01-16 | 北京人民电器厂有限公司 | Transmission mechanism of auxiliary contact device capable of being temporarily contacted |
-
2011
- 2011-07-11 CN CN 201120243614 patent/CN202172023U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102881516A (en) * | 2011-07-11 | 2013-01-16 | 北京人民电器厂有限公司 | Transmission mechanism of auxiliary contact device capable of being temporarily contacted |
| CN102881516B (en) * | 2011-07-11 | 2014-09-24 | 北京人民电器厂有限公司 | Transmission mechanism of auxiliary contact device capable of being temporarily contacted |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205050723U (en) | Quick mechanical switch | |
| RU2001133264A (en) | Electromagnetic contactor device | |
| CN202172023U (en) | Transmission mechanism of auxiliary contact device capable of temporarily contacting | |
| CN201576625U (en) | Novel magnetic switch | |
| CN102881516B (en) | Transmission mechanism of auxiliary contact device capable of being temporarily contacted | |
| CN203882902U (en) | Normally open relay | |
| CN206163407U (en) | Quick mechanical switch moves device with behaviour | |
| CN201072734Y (en) | Instantaneous electricity-consumption AC contactor | |
| CN202332750U (en) | Control and protection switch | |
| CN204270988U (en) | Mechanical latching A.C. contactor | |
| CN203733653U (en) | Novel stroke switch of garage door | |
| CN201359973Y (en) | Energy-saving contactor | |
| CN203242549U (en) | Electromagnetic drive solid insulating switch | |
| CN202585232U (en) | Permanent magnet alternating current vacuum contactor | |
| CN201773759U (en) | High-voltage vacuum circuit breaker | |
| CN104979108B (en) | A kind of operating mechanism and the locomotive using the operating mechanism | |
| CN107958813A (en) | A kind of electromagnetic actuator device and electromagnetic relay | |
| CN201717198U (en) | Electromagnetic contactor | |
| CN201716178U (en) | Mechanical running-in device for alternating-current high-voltage switches | |
| CN109841457B (en) | Bistable contactor based on pulse triggering | |
| CN201927550U (en) | Reversing contactor | |
| CN201725697U (en) | Electromagnet control device for control and protective switching device | |
| CN202996467U (en) | Combined electromagnet | |
| CN103762122B (en) | The electromagnetic mechanism of a kind of cascade magnetic core and energy-saving contactor thereof | |
| CN101572200B (en) | Energy saving contactor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120321 Effective date of abandoning: 20140924 |
|
| RGAV | Abandon patent right to avoid regrant |