CN202633909U - Novel overheating protection electric roller - Google Patents
Novel overheating protection electric roller Download PDFInfo
- Publication number
- CN202633909U CN202633909U CN 201220332657 CN201220332657U CN202633909U CN 202633909 U CN202633909 U CN 202633909U CN 201220332657 CN201220332657 CN 201220332657 CN 201220332657 U CN201220332657 U CN 201220332657U CN 202633909 U CN202633909 U CN 202633909U
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- CN
- China
- Prior art keywords
- novel
- contactor
- phase
- motor
- thermal protector
- 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 - Fee Related
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Abstract
The utility model provides a novel overheating protection electric roller which comprises a cylinder body and a motor arranged in the cylinder motor. The novel overheating protection electric roller also comprises a contactor (JC), wherein at least one phase of a three-phase winding is embedded with a heat protector (ST), the heat protector (ST) is serially connected with a control coil of the contactor (JC), and at least one phase of a three-phase winding of the motor is serially connected with the contact end of the contactor (JC). The novel overheating protection electric roller has the advantages of good safety, simple structure and lower cost.
Description
Technical field
The utility model relates to the motorized pulleys technical field, specifically is meant a kind of novel overtemperature protection motorized pulleys.
Background technology
Motorized pulleys are as drive unit commonly used in the conveying machinery equipment; Its safety problem is paid close attention to by people always; At present motorized pulleys adopt three phase electric machine as drive motors usually, and the motor feels hot transshipping, can cause during situation such as phase shortage in the course of the work, can burn motor in the time of seriously; People have taked various safeguard measures for this reason; As utilize protective devices such as circumscribed protector, mechanical protection device to avoid the situation generation that possibly cause burn-down of electric motor that produces because of the motor feels hot, but the common complex structure of these protective devices, cost is higher.
Also the someone has proposed directly to reach the effect of when electric machine temperature rise is too high, playing outage in the mode that directly is connected in series thermal protector on the winding of motor; Though this mode is simple in structure; Cost is also lower, but in use because the thermal protector capacity is less, when situation such as motor transships, phase shortage; The every phase winding of motor needs electric current of make-and-break bigger; Very easily cause burning of contact appearance outage or straight-through fault in the thermal protector, causing new phase shortage of motor appearance or motor appearance heating not to have should have protective effect, can burn motor in the time of seriously.So and there is bigger potential safety hazard in this mode.
For this reason, city, Boshan territory has been researched and developed the novel overtemperature protection motorized pulleys of the utility model according to magnificent machinery plant through a large amount of improvement and test, has eliminated above-mentioned hidden danger, and security performance is higher.
The utility model content
The technical problem that the utility model will solve is to provide a kind of fail safe good and simple in structure, lower-cost novel overtemperature protection motorized pulleys.
The technical solution of the utility model is; A kind of cylindrical shell and motor that is located in the cylindrical shell of comprising at first is provided; Also comprise contactor; At least one thermal protector that is embedded with mutually in described three phase windings, described thermal protector is connected in series with the control coil of contactor, at least one contact jaw that is serially connected with contactor mutually in three phase windings of described motor.
After adopting above scheme; The thermal protector of the utility model setting and A.C. contactor JC sucking coil are in series with the power supply of input motor power; Thereby realize adopting the break-make electricity of contactor control winding, can reach the purpose of outage when occurrence temperature is too high in the motorized pulleys operation process like this, improved the coefficient of safety of motorized pulleys greatly through the power supply that cuts off winding; In addition; Being provided with of the utility model thermal protector and contactor all can be adopted general components and parts to install to be connected and got final product, and simple in structure, cost is lower.
As preferably, the three-phase in described three phase windings all is embedded with thermal protector.This preferred version all is embedded with thermal protector mutually in each of three phase windings, can realize the accurate detection to three phase windings, has improved the accuracy that detects greatly, and reliability further improves.
As preferably, the three-phase in described three phase windings all is serially connected with the contact jaw of contactor.This preferred version all has been connected in series the contact jaw of contactor mutually in each of three phase windings, when the generation temperature rise is too high, can cut off the link circuit of each phase winding simultaneously, and motor is out of service, better reliability.
As preferably, the method that connects of described three phase windings connects method for " Y " type or " △ " connects method.The method that connects of three phase windings is two kinds commonly used in the present three phase electric machine and connects method in this preferred version.
As preferably, described thermal protector is a temperature detect switch (TDS).Adopt temperature detect switch (TDS) as thermal protector in this preferred version, the reliable operation cost is also lower.
Description of drawings
Fig. 1 is the connecting structure for electrical equipment sketch map of the novel overtemperature protection motorized pulleys embodiment 1 of the utility model.
Fig. 2 is the connecting structure for electrical equipment sketch map of the novel overtemperature protection motorized pulleys embodiment 2 of the utility model.
Shown in the figure:
JC is a contactor, and ST is a thermal protector, and L1～L2 is the winding of motor, and A, B, C are the three-phase input end of motor.
Embodiment
For ease of explanation,, the utility model is elaborated below in conjunction with accompanying drawing:
Embodiment 1:
As shown in fig. 1; A kind of novel overtemperature protection motorized pulleys; Comprise cylindrical shell and the motor that is located in the cylindrical shell, also comprise contactor JC, three-phase all is embedded with thermal protector ST in described three phase windings; Described thermal protector ST is connected in series with the control coil of contactor JC, and three-phase all is serially connected with the contact jaw of contactor JC in three phase windings of described motor.In present embodiment 1, the method that connects of described three phase windings connects method for " △ ", and described thermal protector ST is a temperature detect switch (TDS).
Embodiment 2:
As shown in Figure 2; A kind of novel overtemperature protection motorized pulleys; Comprise cylindrical shell and the motor that is located in the cylindrical shell, also comprise contactor JC, three-phase all is embedded with thermal protector ST in described three phase windings; Described thermal protector ST is connected in series with the control coil of contactor JC, and three-phase all is serially connected with the contact jaw of contactor JC in three phase windings of described motor.In present embodiment 2, the method that connects of described three phase windings connects method for " Y " type, and described thermal protector ST is a temperature detect switch (TDS).
In the above-described embodiments, the preferred forms of the utility model is described, obviously; Under the inventive concept of the utility model; Still can make a lot of variations, as described thermal protector ST also can be only therein one mutually or two bury underground in mutually, described for another example contactor JC also can be only three phase windings wherein one mutually or two be connected in series in mutually; Also can the contact jaw of contactor JC be installed to the motor power input; At this, should explain that any change of under the inventive concept of the utility model, being made all will fall in the protection range of the utility model.
Claims (5)
1. novel overtemperature protection motorized pulleys; Comprise cylindrical shell and the motor that is located in the cylindrical shell; It is characterized in that: also comprise contactor (JC); At least one thermal protector (ST) that is embedded with mutually in described three phase windings, described thermal protector (ST) is connected in series with the control coil of contactor (JC), at least one contact jaw that is serially connected with contactor (JC) mutually in three phase windings of described motor.
2. novel overtemperature protection motorized pulleys according to claim 1 is characterized in that: the three-phase in described three phase windings all is embedded with thermal protector (ST).
3. novel overtemperature protection motorized pulleys according to claim 1 and 2 is characterized in that: the three-phase in described three phase windings all is serially connected with the contact jaw of contactor (JC).
4. novel overtemperature protection motorized pulleys according to claim 1 is characterized in that: the method that connects of described three phase windings connects method for " Y " type or " △ " connects method.
5. novel overtemperature protection motorized pulleys according to claim 1 is characterized in that: described thermal protector (ST) is a temperature detect switch (TDS).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220332657 CN202633909U (en) | 2012-07-11 | 2012-07-11 | Novel overheating protection electric roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220332657 CN202633909U (en) | 2012-07-11 | 2012-07-11 | Novel overheating protection electric roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202633909U true CN202633909U (en) | 2012-12-26 |
Family
ID=47387055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220332657 Expired - Fee Related CN202633909U (en) | 2012-07-11 | 2012-07-11 | Novel overheating protection electric roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202633909U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103414160A (en) * | 2013-07-15 | 2013-11-27 | 国家电网公司 | Motor automatic protection control device |
| CN104377657A (en) * | 2014-12-11 | 2015-02-25 | 重庆七色实业有限公司 | Motor and overload protecting device thereof |
-
2012
- 2012-07-11 CN CN 201220332657 patent/CN202633909U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103414160A (en) * | 2013-07-15 | 2013-11-27 | 国家电网公司 | Motor automatic protection control device |
| CN104377657A (en) * | 2014-12-11 | 2015-02-25 | 重庆七色实业有限公司 | Motor and overload protecting device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20150711 |
|
| EXPY | Termination of patent right or utility model |