CN203456388U - Contactor with lower voltage module - Google Patents
Contactor with lower voltage module Download PDFInfo
- Publication number
- CN203456388U CN203456388U CN201320460175.1U CN201320460175U CN203456388U CN 203456388 U CN203456388 U CN 203456388U CN 201320460175 U CN201320460175 U CN 201320460175U CN 203456388 U CN203456388 U CN 203456388U
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- China
- Prior art keywords
- contactor
- voltage
- overload relay
- main coil
- secondary coil
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Abstract
Provided is a contactor with a lower voltage module. The contactor is characterized in that the contactor comprises a main coil (7), a secondary coil (8), a contactor magnet (9) and a contactor armature; the secondary coil (8) is arranged on one side of the main coil (7); and when voltage is imposed on the main coil (7), the contactor magnet (9) pulls the contactor armature, and the secondary coil (8) produces voltage in the same way of controlling a power supply transformer, so electrical power is provided for the low voltage module.
Description
Technical field
The utility model relates to contactor field, particularly a kind of contactor with low-voltage module, and wherein this low-voltage module can be overload relay module or communication module etc.
Background technology
In the prior art, such as the optional module of various low pressure of overload relay, communication module, use together with contactor, the optional module of these low pressure need to provide electric energy by exterior insulation power supply by independent control connection.
Take overload relay as example, thereby the electric energy that existing overload relay must depend on external power source or must produce oneself keeps the operation of self.Due to the needs to external power source, brought cost, voltage to select the variety of issue of (selection of external power source must be mated system voltage and the overvoltage category of final use) and insulation aspect.
In the module of this self-power supply, or take overload relay as example, need to use very expensive current sensor and larger overload relay electric current (FLA) adjusting range at full capacity cannot be provided.
Therefore, need a kind of contactor with low-voltage module that overcomes the problems referred to above.
Utility model content
In order to overcome above-mentioned shortcoming of the prior art, a kind of contactor with low-voltage module is provided, it is characterized in that, described contactor has main coil, secondary coil, contactor magnet, contactor armature, wherein said secondary coil is arranged on a side of described main coil, when voltage is applied on described main coil, described contactor magnet pulls described contactor armature, described secondary coil produces voltage in the mode identical with controlling power transformer simultaneously, thereby gives described low-voltage module power supply.
Described low-voltage module is overload relay.
Contactor voltage input end is arranged for and connects and provide electric energy to arrive described main coil.
When voltage is applied on described contactor voltage input end, described contactor magnet can pull described contactor armature, and described secondary coil can produce at overload relay terminal place voltage simultaneously.
The normally closed contact of described overload relay is communicated with contactor voltage input end by contact terminal; When described overload relay detects overload inefficacy, the normally closed contact of described overload relay is opened; When normally closed contact is opened, electric energy is removed and described contactor armature moves to spring loading position from described main coil, thereby probe of contactor is opened.
Described main coil and secondary coil by molded in the encapsulation separating, thereby between described main coil and described secondary coil, realize electric insulation.
Described low-voltage module is communication module or other functional module.
According to the utility model, contactor Blast Furnace Top Gas Recovery Turbine Unit (TRT) has been used as insulated power supplies, thereby gives the low-voltage module power supply such as overload relay or communication module.
Secondary coil is arranged on the side that the main coil of electric energy is provided to contactor Blast Furnace Top Gas Recovery Turbine Unit (TRT).When main coil is powered with the control voltage of selecting, contactor Blast Furnace Top Gas Recovery Turbine Unit (TRT) will be closed and secondary coil will produce voltage in the mode identical with controlling power transformer.
Identical with transformer, described main coil is to design based on the coiling number of turns of cable and the ratio of input voltage.Because main coil must always be selected for the control voltage being used by described contactor, so secondary coil is by the coiling cable number of turns always having for the setting quantity of its desirable setting output voltage.
Utilize the utility model that insulated power supplies is integrated in the AC coil of described contactor.The utility model can also be used to other low-voltage device power supply, and wherein these low-voltage devices and contactor interact and when described contactor is in an open position, need insulated power supplies.
Utilize the utility model can overload relay be installed and be connected with the external power source of insulation without the control connection by independent.The utility model is than the advantage of so-called self-power supply overload relay, and the utility model can be used comparatively cheap current sensor, this be because these comparatively cheap current sensors without providing electric energy to overload relay or other module.
In addition, this configuration of the present utility model also provides larger overload relay electric current (FLA) adjusting range at full capacity than prior art.
Because the utility model does not need external power source, thereby reduce cost, eliminated the variety of issue of voltage selection (selection of external power source must be mated system voltage and the overvoltage category of final use) and insulation aspect.The utility model also provides more electric energy than so-called self-power supply overload relay, thereby can provide extra function with low cost.
Utilize the utility model, realized the insulation low-tension supply for overload relay or communication module, contactor coil can, by backbone power voltage supply, have been eliminated the needs of insulation being controlled to power transformer simultaneously.
So far, for the detailed description of the utility model at this can be better understood, and for the utility model can be realized better to the contribution of prior art, the disclosure has been summarized embodiment of the present utility model quite widely.Certainly, execution mode of the present utility model will be described below and will form the theme of claims.
In this respect, before explaining embodiment of the present utility model in detail, should be appreciated that the utility model is not restricted to proposition or the details of structure illustrated in the accompanying drawings and the configuration of parts in the following description in its application.The utility model can have except describe those embodiment, and can implement by different way and carry out.Moreover, should be appreciated that at the wording of this employing and term and summary be the object in order to describe, should not think determinate.
Similarly, those skilled in the art will recognize that, the disclosure based on design can be easily as the basis of other structure of design, method and system, for implementing several object of the present utility model.Therefore, importantly, claims will be understood that and comprise such equivalent structure, as long as they do not exceed essence of the present utility model and scope.
Accompanying drawing explanation
Accompanying drawing those skilled in the art by below will have better understanding to the utility model, and more can clearly embody advantage of the present utility model.Accompanying drawing described herein is only for the illustration purpose of selected embodiment, rather than whole possible execution modes and be intended to not limit scope of the present utility model.
Fig. 1 illustrates the schematic diagram that has the contactor of overload relay according to of the present utility model.
Embodiment
Below with reference to accompanying drawing to being elaborated according to preferred embodiment of the present utility model.By accompanying drawing and corresponding explanatory note, it will be understood to those of skill in the art that characteristics and advantages of the present utility model.
The low-voltage module of take such as overload relay is example, as shown in Figure 1, it shows the schematic diagram that has the contactor of overload relay 10 according to of the present utility model, and wherein voltage input end 1 and 2 is arranged for the main coil 7 of electric energy to the electromagnetic assembly of contactor is provided.When voltage is applied on described voltage input end 1 and 2, contactor magnet 9 can pull contactor armature (not shown).When described contactor armature when pulled, the electromagnetic assembly of described contactor can produce voltages at overload relay terminal 5,6 places as transformer and secondary coil 8.This voltage is used to this overload relay power supply.Because this overload relay 10 only need to move when described contactor magnet 9 is closed, therefore above-mentioned structure, running is good.
The normally closed contact of described overload relay 10 is communicated with voltage input end 1 and 2 by contact terminal 3,4.When described overload relay 10 detects overload inefficacy, the normally closed contact of described overload relay 10 is opened.When normally closed contact is opened, electric energy is removed and contactor armature moves to spring loading position from main coil, thus probe of contactor open, and therefore protected motor.
Described main coil is for specific voltage and provide the electric energy of same levels to described electromagnetism group
Part.For example, the main coil of 240VAC has the coiling cable of 100 circles, and the main coil of 120VAC has the coiling cable of 50 circles.If secondary coil has the coiling cable of 10 circles, no matter what the main coil using is so, the output of secondary coil will be always 24VAC.This means and only have a secondary coil for each size of electromagnetic assembly.
Can be by molded in the encapsulation separating due to described main coil 7 and secondary coil 8, described secondary coil 8 is without replacing.Described molded also allows to realize high-grade electric insulation between described main coil 7 and described secondary coil 8.This contributes to described overload relay 10 to avoid the impact of the surge of outer power voltage.
According to the utility model, contactor Blast Furnace Top Gas Recovery Turbine Unit (TRT) has been used as insulated power supplies, thereby gives the low-voltage module power supply such as overload relay 10 or communication module.
Utilize the utility model that insulated power supplies is integrated in the AC coil of described contactor.The utility model can also be used to other low-voltage device power supply, and wherein these low-voltage devices and contactor interact and when described contactor is in an open position, need insulated power supplies.
Utilize the utility model can overload relay be installed and be connected with the external power source of insulation without the control connection by independent.The utility model is than the advantage of so-called self-power supply overload relay, and the utility model can be used comparatively cheap current sensor, this be because these comparatively cheap current sensors without providing electric energy to overload relay or other module.In addition, this configuration of the present utility model also provides larger overload relay electric current (FLA) adjusting range at full capacity than prior art.
Because the utility model does not need external power source, thereby reduce cost, eliminated the variety of issue of voltage selection (selection of external power source must be mated system voltage and the overvoltage category of final use) and insulation aspect.The utility model also provides more electric energy than so-called self-power supply overload relay, thereby can provide extra function with low cost.
Utilize the utility model, realized the insulation low-tension supply for overload relay or communication module, contactor coil can, by backbone power voltage supply, have been eliminated the needs of insulation being controlled to power transformer simultaneously.
With reference to specific embodiment, although the utility model is illustrated in specification and accompanying drawing, but be to be understood that, in the situation that do not depart from the utility model scope defined in claim, affiliated technical field personnel can make multiple change and the alternative wherein Various Components of multiple equivalent.And, the combination of the technical characterictic between specific embodiment, element and/or function and collocation is herein clear distinct, therefore according to these disclosed contents, technical characterictic, element and/or function that affiliated technical field personnel can understand in embodiment can optionally be incorporated in another specific embodiment, unless foregoing has other description.In addition,, according to instruction of the present utility model, in the scope that does not depart from the utility model essence, adapt to special situation or material and can make many changes.Therefore, the utility model is not limited to graphic other specific embodiment of accompanying drawing institute, and the conduct described in specification is at present for implementing the specific embodiment of the contemplated preferred forms of the utility model, and the utility model intention comprises all execution modes that fall within the scope of above-mentioned specification and appended claim.
Claims (7)
1. a contactor with low-voltage module, it is characterized in that, described contactor has main coil (7), secondary coil (8), contactor magnet (9), contactor armature, wherein said secondary coil (8) is arranged on a side of described main coil (7), when voltage is applied on described main coil (7), described contactor magnet (9) pulls described contactor armature, described secondary coil (8) produces voltage in the mode identical with controlling power transformer simultaneously, thereby gives described low-voltage module power supply.
2. contactor according to claim 1, is characterized in that, described low-voltage module is overload relay (10).
3. contactor according to claim 2, is characterized in that, contactor voltage input end (1,2) is arranged for and connects and provide electric energy to arrive described main coil (7).
4. contactor according to claim 3, it is characterized in that, when voltage is applied on described contactor voltage input end (1,2), described contactor magnet (9) can pull described contactor armature, and described secondary coil (8) can locate to produce voltage at overload relay terminal (5,6) simultaneously.
5. contactor according to claim 4, is characterized in that, the normally closed contact of described overload relay (10) is communicated with contactor voltage input end (1,2) by contact terminal (3,4);
When described overload relay (10) detects overload inefficacy, the normally closed contact of described overload relay (10) is opened;
When normally closed contact is opened, electric energy is removed and described contactor armature moves to spring loading position from described main coil (7), thereby probe of contactor is opened.
6. contactor according to claim 5, is characterized in that, described main coil (7) and secondary coil (8) by molded in the encapsulation separating, thereby between described main coil (7) and described secondary coil (8), realize electric insulation.
7. contactor according to claim 1, is characterized in that, described low-voltage module is communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320460175.1U CN203456388U (en) | 2013-07-30 | 2013-07-30 | Contactor with lower voltage module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320460175.1U CN203456388U (en) | 2013-07-30 | 2013-07-30 | Contactor with lower voltage module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203456388U true CN203456388U (en) | 2014-02-26 |
Family
ID=50136246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320460175.1U Expired - Lifetime CN203456388U (en) | 2013-07-30 | 2013-07-30 | Contactor with lower voltage module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203456388U (en) |
-
2013
- 2013-07-30 CN CN201320460175.1U patent/CN203456388U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140226 |