CN220107580U - Heavy current reversing device - Google Patents
Heavy current reversing device Download PDFInfo
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- CN220107580U CN220107580U CN202320440799.0U CN202320440799U CN220107580U CN 220107580 U CN220107580 U CN 220107580U CN 202320440799 U CN202320440799 U CN 202320440799U CN 220107580 U CN220107580 U CN 220107580U
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 40
- 229910052742 iron Inorganic materials 0.000 claims description 20
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The utility model relates to high-current reversing equipment which comprises a relay module, a first reversing module and a second reversing module; the control component is used for controlling the position of the movable contact, so that the movable contact is connected with the forward input contact and the forward output contact, or the movable contact is connected with the reverse input contact and the reverse output contact, and the forward input contacts of the first reversing module and the second reversing module are connected with the forward input end; the forward output contact and the reverse output contact of the first reversing module are both connected with the forward output end; the forward output contact and the reverse output contact of the second reversing module are both connected with a reverse output end; the relay module is electrically connected with the control components of the two reversing modules; according to the utility model, the direction conversion of 1500A heavy current is realized by arranging two reversing devices and a relay module and controlling the connection of all contacts in the reversing devices through the relay module.
Description
Technical Field
The utility model relates to current reversing equipment, in particular to high-current reversing equipment.
Background
Under the influence of the electrification process, the requirements of a plurality of large-scale high-power electric equipment are increasingly expanded, and particularly the popularization of electric automobiles is more and more important for the detection of large currents. In order to test a high current sensor, a high current source is required. Current sources of the prior art often only achieve current in one direction, and a current commutation device is required for testing reverse current.
Disclosure of Invention
Based on the above description, the utility model provides a high-current reversing device, which realizes the direction conversion of 1500A high current by arranging two reversing devices and a relay module and controlling the connection of each contact in the reversing device through the relay module.
The technical scheme for solving the technical problems is as follows: a high-current reversing device comprises a relay module, a first reversing module and a second reversing module; the first reversing module and the second reversing module comprise a forward input contact, a forward output contact, a reverse input contact, a reverse output contact, a movable contact and a control assembly; the control component is used for controlling the position of the movable contact, so that the movable contact is connected with the forward input contact and the forward output contact, or the movable contact is connected with the reverse input contact and the reverse output contact;
the forward input contacts of the first reversing module and the second reversing module are connected with a forward input end, and the reverse input contacts of the first reversing module and the second reversing module are connected with a reverse input end; the forward output contact and the reverse output contact of the first reversing module are both connected with a forward output end; the forward output contact and the reverse output contact of the second reversing module are both connected with a reverse output end;
the relay module is electrically connected with the control components of the two reversing modules.
On the basis of the technical scheme, the utility model can be improved as follows.
Further, the control assembly comprises a forward coil, a reverse coil and a moving soft iron; the moving soft iron is arranged between the forward coil and the reverse coil, and is connected with the movable contact through a guide rod;
the positive coil is used for attracting the moving soft iron when being electrified, so that the movable contact is connected with the positive input contact and the positive output contact;
the reverse coil is used for attracting the moving soft iron when being electrified, so that the movable contact is connected with the reverse input contact and the reverse output contact.
Further, the reversing device further comprises a power supply module; the relay module comprises a first control switch and a second control switch; the first control switch and the second control switch are provided with a common end, a normal open end and a normal closed end; the power supply module comprises a positive voltage output end and a negative voltage output end;
the common ends of the first control switch and the second control switch are connected with the negative voltage output end;
one ends of the forward coil and the reverse coil of the first reversing module and the second reversing module are connected with the forward voltage output end;
the other end of the forward coil of the first reversing module is connected with the normally open end of the first control switch, and the other end of the reverse coil of the first reversing module is connected with the normally open end of the second control switch; the other end of the forward coil of the second reversing module is connected with the normally open end of the second control switch, and the other end of the reverse coil of the second reversing module is connected with the normally open end of the first control switch.
Further, the relay module comprises a relay control card with the model of JY-DAM0404D, the first control switch and the second control switch are arranged in the relay control card, and a third control switch and a fourth control switch are further arranged in the relay control card.
Further, a main switch module is arranged between the first reversing module and the forward output end.
Further, the master switch module comprises a controlled switch and a closing component; the controlled switch is connected in series between the first reversing module and the positive output end; the switching-on assembly is used for controlling the on-off of the controlled switch, one end of the switching-on assembly is connected with the positive voltage output end of the power module, the other end of the switching-on assembly is connected with the normal start end of the third control switch, and the public end of the third control switch is connected with the negative voltage output end of the power module.
Further, the closing assembly comprises a starting coil, a holding coil and auxiliary contacts; one end of the starting coil is connected with the forward voltage output end of the power supply module, the other end of the starting coil is connected with one end of the holding coil, and the other end of the holding coil is connected with the normal open end of the third control switch; the auxiliary contact is a normally closed contact and is connected with the holding coil in parallel.
Compared with the prior art, the technical scheme of the utility model has the following beneficial technical effects:
the utility model provides high-current reversing equipment, which is characterized in that two reversing equipment and a relay module are arranged, and the relay module is used for controlling the connection of all contacts in the reversing equipment to realize the direction conversion of 1500A high current.
Drawings
Fig. 1 is a schematic structural diagram of a high-current reversing device according to an embodiment of the present utility model;
fig. 2 is a schematic structural diagram of a first reversing module according to an embodiment of the present utility model;
fig. 3 is a schematic structural diagram of a second reversing module according to an embodiment of the present utility model;
fig. 4 is a schematic structural diagram of a main switch module in an embodiment of the utility model;
fig. 5 is a schematic structural diagram of a relay module according to an embodiment of the present utility model;
in the drawings, the list of components represented by the various numbers is as follows:
1. a first commutation module; 11. a first positive input contact; 12. a second positive output contact; 13. a first inverting input contact; 14. a first inverted output contact; 15. a first movable contact; 16. a first forward coil; 17. a first reverse coil; 18. a first moving soft iron; 19. a first guide bar; 2. a second reversing module; 21. a second positive input contact; 22. a second positive output contact; 23. a second inverting input contact; 24. a second inverted output contact; 25. a second movable contact; 26. a second forward coil; 27. a second reversing coil; 28. a second moving soft iron; 29. a second guide bar; 3. a main switch module; 31. a controlled switch; 32. starting a coil; 33. a holding coil; 34. an auxiliary contact; 4. a relay module; 41. a relay control card; 42. a first control switch; 43. a second control switch; 44. a third control switch; 45. a fourth control switch; 5. a power module; 51. a forward voltage output terminal; 52. and a negative voltage output terminal.
Detailed Description
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Embodiments of the utility model are illustrated in the accompanying drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. In the following embodiments, "connected" is understood to mean "electrically connected", "communicatively connected", and the like, if the connected circuits, modules, units, and the like have electrical or data transferred therebetween.
A high-current reversing device comprises a first reversing module 1, a second reversing module 2, a main switch module 3, a relay module 4 and a power supply module 5. The first reversing module 1, the second reversing module 2 and the main switch module 3 form a high-current loop for outputting high current. The relay module 4 is used for controlling the high-current loop so as to realize the commutation of the output high current. The power module 5 is used for supplying power to the first reversing module 1, the second reversing module 2, the main switch module 3 and the relay module 4.
The first commutation module 1 comprises a first forward input contact 11, a second forward output contact 12, a first reverse input contact 13, a first reverse output contact 14, a first movable contact 15 and a first control assembly. The first control assembly is used to control the position of the first movable contact 15, to connect the first movable contact 15 with the first forward input contact 11 and the first forward output contact 12, or to connect the first movable contact 15 with the first reverse input contact 13 and the first reverse output contact 14.
The second commutation module 2 comprises a second forward input contact 21, a second forward output contact 22, a second reverse input contact 23, a second reverse output contact 24, a second movable contact 25 and a second control assembly. The second control assembly is used to control the position of the second movable contact 25, to connect the second movable contact 25 with the second forward input contact 21 and the second forward output contact 22, or to connect the second movable contact 25 with the second reverse input contact 23 and the second reverse output contact 24.
The main switch module 3 comprises a controlled switch 31 and a closing component, wherein the closing component is used for controlling the on-off of the controlled switch 31.
In addition, the first and second forward input contacts 11 and 21 are each connected to the forward input Ui+, and the first and second reverse input contacts 13 and 23 are each connected to the reverse input Ui-. The first forward output contact 12 and the first reverse output contact 14 are both connected to one end of a controlled switch 31, and the other end of the controlled switch 31 is connected to the forward output uo+. The second forward output contact 22 and the second reverse output contact 24 are both connected to the reverse output Uo-.
The high current is input from the forward input terminal ui+ and the reverse input terminal Ui-, and output from the forward output terminal uo+ and the reverse output terminal Uo-. The relay module 4 is electrically connected with the first control assembly and the second control assembly, so that high-current reversing is realized. And the relay module 4 is electrically connected with the closing component 32 and used for controlling the on-off of the whole high-current loop.
Specifically, the relay module 4 includes a relay control card 41 with a model of JY-DAM0404D, and a first control switch 42, a second control switch 43, a third control switch 44 and a fourth control switch 45 are arranged in the relay control card 41. The first control switch 42, the second control switch 43, the third control switch 44 and the fourth control switch 45 each have a common end, a normally closed end and a normally open end.
The power supply module 5 has a positive voltage output 51 and a negative voltage output 52. The common terminals of the first control switch 42 and the second control switch 43 are both connected to a negative voltage output 52.
The first control assembly comprises a first forward coil 16, a first reverse coil 17 and a first moving soft iron 18. The first moving soft iron 18 is disposed between the first forward coil 16 and the first reverse coil 17, and the first moving soft iron 18 is connected to the first movable contact 15 through a first guide rod 19. One end of each of the first forward coil 16 and the first reverse coil 17 is connected to the forward voltage output terminal 51. The other end of the first forward coil 16 is connected to the normally open end of the first control switch 42, and the other end of the first reverse coil 17 is connected to the normally open end of the second control switch 43.
The second control assembly includes a second forward coil 26, a second reverse coil 27 and a second moving soft iron 28. The second moving soft iron 28 is disposed between the second forward coil 26 and the second reverse coil 27, and the second moving soft iron 28 is connected to the second movable contact 25 through a second guide rod 29. One end of each of the second forward coil 26 and the second reverse coil 27 is connected to the forward voltage output terminal 51. The other end of the second forward coil 26 is connected to the normally open end of the second control switch 43, and the other end of the second reverse coil 27 is connected to the normally open end of the first control switch 42.
When the first control switch 42 is operated to connect the common terminal to the normally-open terminal and the second control switch 43 is not operated to connect the common terminal to the normally-closed terminal, the first forward coil 16 is energized and attracts the first moving soft iron 18, thereby connecting the first movable contact 15 to the first forward input contact 11 and the second forward output contact 12; and the second reverse coil 27 is energized and attracts the second moving soft iron 28, thereby connecting the second movable contact 25 to the second reverse input contact 23 and the second reverse output contact 24. At this time, the positive output uo+ is positive, and the negative output Uo-is negative.
When the first control switch 42 is not operated to connect the common terminal to the normally-closed terminal and the second control switch 43 is operated to connect the common terminal to the normally-open terminal, the first reverse coil 17 is energized and attracts the first moving soft iron 18, thereby connecting the first movable contact 15 to the first reverse input contact 13 and the second reverse output contact 14; and the second forward coil 27 is energized and attracts the second moving soft iron 28, thereby connecting the second movable contact 25 to the second forward input contact 21 and the second forward output contact 22. At this time, the positive output end uo+ is a negative electrode, and the reverse output end Uo-is a positive electrode 1, so that the high-current commutation is realized.
When the first control switch 42 and the second control switch 43 are not operated to connect the common terminal to the normally-closed terminal, the positive output terminal uo+ and the negative output terminal Uo-are both negative electrodes, and the high-current loop does not output current.
When the first control switch 42 and the second control switch 43 are operated to connect the common terminal to the normal terminal, the positive output terminal uo+ and the negative output terminal Uo-are both positive, and the large current loop does not output current.
In addition, the closing assembly of the main switch module 3 includes a start coil 32, a hold coil 33 and an auxiliary contact 34. One end of the start coil 32 is connected to the positive voltage output terminal 51 of the power supply module 5, the other end of the start coil 32 is connected to one end of the hold coil 33, the other end of the hold coil 33 is connected to the normal start of the third control switch 44, and the common end of the third control switch 44 is connected to the negative voltage output terminal 52 of the power supply module 5. The auxiliary contact 34 is a normally closed contact and is connected in parallel with the holding coil 33.
When the third control switch 44 is operated to connect the common terminal to the normal terminal, current flows through the start coil 32 and the auxiliary contact 34, the impedance is small, a large start current is generated, the controlled switch 31 is turned on, and the large current loop starts to output a large current. Meanwhile, the auxiliary contact 34 is turned off, and at the moment, current flows through the starting coil 32 and the holding coil 33, so that the impedance is high, and therefore stable small holding current is generated, the opening of the controlled switch 31 and the turning-off of the auxiliary contact 34 are ensured through the small holding current, and the consumption of electric energy is reduced.
The fourth control switch 45 in the relay control card 41 is left empty.
The embodiment provides a heavy current reversing device, which is characterized in that two reversing devices and a relay module are arranged, and the relay module is used for controlling the connection of all contacts in the reversing device, so that the direction conversion of 1500A heavy current is realized.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (7)
1. The high-current reversing device is characterized by comprising a relay module, a first reversing module and a second reversing module; the first reversing module and the second reversing module comprise a forward input contact, a forward output contact, a reverse input contact, a reverse output contact, a movable contact and a control assembly; the control component is used for controlling the position of the movable contact, so that the movable contact is connected with the forward input contact and the forward output contact, or the movable contact is connected with the reverse input contact and the reverse output contact;
the forward input contacts of the first reversing module and the second reversing module are connected with a forward input end, and the reverse input contacts of the first reversing module and the second reversing module are connected with a reverse input end; the forward output contact and the reverse output contact of the first reversing module are both connected with a forward output end; the forward output contact and the reverse output contact of the second reversing module are both connected with a reverse output end;
the relay module is electrically connected with the control components of the two reversing modules.
2. A high current reversing device according to claim 1, wherein said control assembly comprises a forward coil, a reverse coil and a moving soft iron; the moving soft iron is arranged between the forward coil and the reverse coil, and is connected with the movable contact through a guide rod;
the positive coil is used for attracting the moving soft iron when being electrified, so that the movable contact is connected with the positive input contact and the positive output contact;
the reverse coil is used for attracting the moving soft iron when being electrified, so that the movable contact is connected with the reverse input contact and the reverse output contact.
3. The high current commutation apparatus of claim 2, further comprising a power module; the relay module comprises a first control switch and a second control switch; the first control switch and the second control switch are provided with a common end, a normal open end and a normal closed end; the power supply module comprises a positive voltage output end and a negative voltage output end;
the common ends of the first control switch and the second control switch are connected with the negative voltage output end;
one ends of the forward coil and the reverse coil of the first reversing module and the second reversing module are connected with the forward voltage output end;
the other end of the forward coil of the first reversing module is connected with the normally open end of the first control switch, and the other end of the reverse coil of the first reversing module is connected with the normally open end of the second control switch; the other end of the forward coil of the second reversing module is connected with the normally open end of the second control switch, and the other end of the reverse coil of the second reversing module is connected with the normally open end of the first control switch.
4. A high current reversing device according to claim 3, wherein the relay module comprises a relay control card of model JY-DAM0404D, the first control switch and the second control switch are both arranged in the relay control card, and a third control switch and a fourth control switch are further arranged in the relay control card.
5. The high current commutation apparatus of claim 4, wherein a main switch module is disposed between the first commutation module and the forward output.
6. The high current commutation device of claim 5, wherein the master switch module comprises a controlled switch and a closing assembly; the controlled switch is connected in series between the first reversing module and the positive output end; the switching-on assembly is used for controlling the on-off of the controlled switch, one end of the switching-on assembly is connected with the positive voltage output end of the power module, the other end of the switching-on assembly is connected with the normal start end of the third control switch, and the public end of the third control switch is connected with the negative voltage output end of the power module.
7. The high current commutation apparatus of claim 6, wherein the closing assembly includes a start coil, a hold coil, and auxiliary contacts; one end of the starting coil is connected with the forward voltage output end of the power supply module, the other end of the starting coil is connected with one end of the holding coil, and the other end of the holding coil is connected with the normal open end of the third control switch; the auxiliary contact is a normally closed contact and is connected with the holding coil in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320440799.0U CN220107580U (en) | 2023-03-09 | 2023-03-09 | Heavy current reversing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320440799.0U CN220107580U (en) | 2023-03-09 | 2023-03-09 | Heavy current reversing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220107580U true CN220107580U (en) | 2023-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320440799.0U Active CN220107580U (en) | 2023-03-09 | 2023-03-09 | Heavy current reversing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220107580U (en) |
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- 2023-03-09 CN CN202320440799.0U patent/CN220107580U/en active Active
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