CN201266831Y - Protection equipment for transformer of resistance welder - Google Patents
Protection equipment for transformer of resistance welder Download PDFInfo
- Publication number
- CN201266831Y CN201266831Y CNU2008201891450U CN200820189145U CN201266831Y CN 201266831 Y CN201266831 Y CN 201266831Y CN U2008201891450 U CNU2008201891450 U CN U2008201891450U CN 200820189145 U CN200820189145 U CN 200820189145U CN 201266831 Y CN201266831 Y CN 201266831Y
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- CN
- China
- Prior art keywords
- transformer
- contactor
- former limit
- resistance welder
- protection equipment
- 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.)
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Abstract
The utility model discloses a power-off protection device for a resistance welding machine transformer, which comprises a Hall sensor that is arranged at an original edge, a control panel which is electrically connected with the Hall sensor, and a breaker which is electrically connected with the control panel and connected with the Hall sensor in series at the original edge. The Hall sensor collects the signals such as electrifying current at the original edge and the like, and transmits the signal to the control panel; and when abnormal phenomena such as overlong electrifying time and the like appear, the control panel transmits a breaking signal to the breaker, thereby cutting off the power, causing the circuit at the original edge to be powered off, and protecting the transformer from being burned out due to overheating caused by overlong electrifying time.
Description
Technical field
The utility model relates to a kind of transformer, relates in particular to a kind of protective device that is used for the resistance welder transformer.
Background technology
The transformer of the present resistance welder of using always, comprise former limit and secondary, this former limit is provided with controllable silicon, when after controllable silicon is subjected to trigger electrode control, being in conducting state, welding transformer is switched on carries out work, but controllable silicon can become direct conducting owing to reasons such as overtension are breakdown, thereby causes welding controller out of control, and transformer will make its heating excessively cause transformer to be burnt because of long-time energising.
The utility model content
The technical problems to be solved in the utility model provides a kind of protection equipment for transformer that is used for resistance welder with overtime overload power-off protection function.
In order to solve the problems of the technologies described above; the basic design of the technical scheme that the utility model adopted is: a kind of resistance welder protection equipment for transformer; be used for the resistance welder transformer; this resistance welder transformer comprises former limit and secondary; this former limit is provided with controllable silicon, and described resistance welder protection equipment for transformer is the control device that opens circuit that is arranged at former limit.
As improvement of the technical scheme, the control unit that the described control device that opens circuit comprises the current sensing means that is arranged at former limit, electrically connect with this current sensing means, electrically connect and be used to cut off the power switch device on described former limit with this control unit.
As improvement of the technical scheme, described current sensing means is a Hall element.
As improvement of the technical scheme, described current sensing means is galvanometer or magnetic flux transducer or current transformer or other transducers with same function.
As improvement of the technical scheme, described power switch device comprises the auxiliary relay that has relay contact and control this relay contact switch, have contacts of contactor and control the A.C. contactor of this contacts of contactor switch, described relay contact triggers the A.C. contactor action, and described contacts of contactor and described current sensing means are series at former limit.
As improvement of the technical scheme, described auxiliary relay and described control unit electrically connect, and described relay contact and described A.C. contactor are composed in series contactor circuit, and this contactor circuit is in parallel with described former limit.
The beneficial effects of the utility model: a kind of protection equipment for transformer that is used for resistance welder that the utility model provides with break protecting; this broken circuit protecting equipment comprises the current sensing means that is arranged at former limit; control board with this power switch device electric connection; electrically connect and control the power switch device that cuts off former limit with this control board; described power switch device is gathered the signals such as conduction time on former limit; carry this signal to control board; when anomalies such as conduction time is long occurring; control board output break signal is to circuit breaker; thereby cut off the electricity supply former limit circuit is disconnected, the protection transformer is not because of long overheated burning out conduction time.
Description of drawings
Fig. 1 is to use the schematic diagram of resistance welder transformer of the present utility model;
Fig. 2 is the rough schematic view of resistance welder transformer shown in Figure 1.
Embodiment
As shown in Figure 1, a kind of protection equipment for transformer that is used for resistance welder provided by the utility model with break protecting.With general transformer ' s type seemingly; described resistance welder transformer comprises former limit 10 and secondary 30; former limit 10 is the transformer input; secondary 30 is transformer outputs; this former limit 10 is provided with controllable silicon 11; this transformer also comprises the control device that opens circuit that is arranged at former limit 10, and this control device that opens circuit is used in conduction time cutting off the electricity supply when long, thereby the protection transformer does not burn out because of overheated.Described resistance welder protection equipment for transformer is the control device that opens circuit that is arranged at former limit, and broken circuit protecting equipment is also referred to as the control device that opens circuit.
Simultaneously with reference to figure 2; this broken circuit protecting equipment comprises the Hall element 12 that is arranged at former limit 10; control unit 15 with these Hall element 12 electric connections; electrically connect with this control unit 15 and be series at the power switch device on former limit 10 with described Hall element 12; described Hall element 12 is gathered the signals such as electric current on former limit 10; carry this signal to control unit 15; when anomalies such as conduction time is long occurring; control unit 15 thinks that according to the signal judgement that receives appearance is unusual; then export break signal to power switch device 60; controlling this power switch device 60 cuts off the electricity supply; thereby cut off the electricity supply former limit 10 circuit are disconnected, the protection transformer is not because of long overheated burning out conduction time.Certainly, Hall element 12 wherein also can use other to detect former limit 10 to have the current sensing means 50 that electric current passes through and replace, for example galvanometer, magnetic flux transducer, current transformer or have other transducers of same function.
More preferably, above-mentioned power switch device 60 is used to cut off described former limit 10 circuit, it comprises the auxiliary relay 16 that has relay contact 26 and control these relay contact 26 switches, the A.C. contactor 28 that has contacts of contactor 18 and control these contacts of contactor 18 switches, described relay contact 26 triggers A.C. contactor 28 actions, and described contacts of contactor 18 is series at former limit 10 with described current sensing means.Its course of action is: former limit 10 current durations are long; the signal feedback of current sensing means 50 is to control unit 15; control unit 15 is judged to be overload; then send and control signal to auxiliary relay 16; the relay contact 26 of auxiliary relay 16 is closed; thereby trigger A.C. contactor 28 and produce corresponding actions, control contactor contact 18 makes its disconnection, transformer is protected can burn out because of conduction time is long.Similarly execution mode has the solid-state switch of use, controllable silicon to replace auxiliary relay to realize the function of control switch.
More preferably, described auxiliary relay 16 electrically connects with described control unit 15, and the control signal that control unit 15 sends directly is sent to auxiliary relay 16, and auxiliary relay 16 drives relay contact 26 actions, makes the normally opened contact closure.Described relay contact 26 is composed in series contactor circuit 20 with described A.C. contactor 28, this contactor circuit 20 is in parallel with described former limit 10, the closure of relay contact 26 makes A.C. contactor 28 conductings, make its normally-closed contact separately thereby drive system contacts of contactor 18, realize disconnecting the function of former limit circuit.
Because common auxiliary relay all has main contact, compares with A.C. contactor, its main contact is less, and bearing capacity is low, is mainly used in transfer control signal.Therefore, general circuit often is divided into main circuit and control circuit two parts, and relay is mainly used in control circuit, and contactor is mainly used in main circuit; Can realize controlling the function of another road or several signals by relay, finish startup, stop, control such as interlock with one tunnel control signal, major control to as if contactor; The contact of contactor is bigger, and bearing capacity is strong, realizes the control of light current to forceful electric power by it, and controlling object is a power consumption equipment.Best implementation also is to adopt this pattern to realize switch control functions in the utility model, and relay is controlled A.C. contactor by relay contact in the middle of it, and then the control contactor contact, and the disconnection of the former limit of final realization control circuit is with closed.
Above disclosed only is preferred embodiment of the present utility model, can not limit the interest field of the utility model certainly with this, and therefore the equivalent variations of being done according to the utility model claim still belongs to the scope that the utility model is contained.
Claims (6)
1, a kind of resistance welder protection equipment for transformer; be used for the resistance welder transformer; this resistance welder transformer comprises former limit and secondary, and this former limit is provided with controllable silicon, it is characterized in that: described resistance welder protection equipment for transformer is the control device that opens circuit that is arranged at former limit.
2, resistance welder protection equipment for transformer as claimed in claim 1 is characterized in that: the control unit that the described control device that opens circuit comprises the current sensing means that is arranged at former limit, electrically connect with this current sensing means, electrically connect and be used to cut off the power switch device on described former limit with this control unit.
3, resistance welder protection equipment for transformer as claimed in claim 2, it is characterized in that: described current sensing means is a Hall element.
4, resistance welder protection equipment for transformer as claimed in claim 2 is characterized in that: described current sensing means is galvanometer or magnetic flux transducer or current transformer.
5, resistance welder protection equipment for transformer as claimed in claim 2; it is characterized in that: described power switch device comprises the auxiliary relay that has relay contact and control this relay contact switch, have contacts of contactor and control the A.C. contactor of this contacts of contactor switch; described relay contact triggers described A.C. contactor action, and described contacts of contactor and described current sensing means are series at former limit.
6, resistance welder protection equipment for transformer as claimed in claim 5; it is characterized in that: described auxiliary relay and described control unit electrically connect; described relay contact and described A.C. contactor are composed in series contactor circuit, and this contactor circuit is in parallel with described former limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201891450U CN201266831Y (en) | 2008-08-26 | 2008-08-26 | Protection equipment for transformer of resistance welder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201891450U CN201266831Y (en) | 2008-08-26 | 2008-08-26 | Protection equipment for transformer of resistance welder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201266831Y true CN201266831Y (en) | 2009-07-01 |
Family
ID=40833200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201891450U Expired - Lifetime CN201266831Y (en) | 2008-08-26 | 2008-08-26 | Protection equipment for transformer of resistance welder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201266831Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102437551A (en) * | 2011-11-30 | 2012-05-02 | 唐山轨道客车有限责任公司 | Over-current protection device for transformer and electric locomotive |
| CN103722275A (en) * | 2013-12-04 | 2014-04-16 | 山东金阳矿业集团有限公司 | Energy-saving electric welding machine |
| WO2023071623A1 (en) * | 2021-10-27 | 2023-05-04 | 海南摩尔兄弟科技有限公司 | Electronic device, battery rod applied to electronic device, and electronic atomizing device |
-
2008
- 2008-08-26 CN CNU2008201891450U patent/CN201266831Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102437551A (en) * | 2011-11-30 | 2012-05-02 | 唐山轨道客车有限责任公司 | Over-current protection device for transformer and electric locomotive |
| CN102437551B (en) * | 2011-11-30 | 2014-09-17 | 唐山轨道客车有限责任公司 | Over-current protection device for transformer and electric locomotive |
| CN103722275A (en) * | 2013-12-04 | 2014-04-16 | 山东金阳矿业集团有限公司 | Energy-saving electric welding machine |
| WO2023071623A1 (en) * | 2021-10-27 | 2023-05-04 | 海南摩尔兄弟科技有限公司 | Electronic device, battery rod applied to electronic device, and electronic atomizing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGZHOU HERON MACHINE + ELECTRIC CO., LTD. Free format text: FORMER NAME: GUANGZHOU (CONGHUA) HERON MACHINE + ELECTRIC INDUSTRIAL CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 510990, No. 9, abundance Road, Taiping economic and Technological Development Zone, Conghua, Guangdong, Guangzhou Patentee after: Heron Machine & Electric Inductrial Co., Ltd. Address before: 510990, No. 9, abundance Road, Taiping economic and Technological Development Zone, Conghua, Guangdong, Guangzhou Patentee before: Guangzhou (Conghua) Heron Machine & Electric Industrial Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 510990, No. 9, abundance Road, Taiping economic and Technological Development Zone, Conghua, Guangdong, Guangzhou Patentee after: HERON INTELLIGENT EQUIPMENT CO., LTD. Address before: 510990, No. 9, abundance Road, Taiping economic and Technological Development Zone, Conghua, Guangdong, Guangzhou Patentee before: Heron Machine & Electric Inductrial Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090701 |