CN110783068A - High-frequency high-power transformer with heat abstractor - Google Patents
High-frequency high-power transformer with heat abstractor Download PDFInfo
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- CN110783068A CN110783068A CN201910230321.3A CN201910230321A CN110783068A CN 110783068 A CN110783068 A CN 110783068A CN 201910230321 A CN201910230321 A CN 201910230321A CN 110783068 A CN110783068 A CN 110783068A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/16—Water cooling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
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Abstract
The invention relates to the technical field of transformers, in particular to a high-frequency high-power transformer with a heat dissipation device, which aims to overcome the defects of the prior art and provide the high-frequency high-power transformer with the heat dissipation device; it includes transformer body (1), transformer housing (3), its characterized in that: the transformer body (1) is arranged inside the transformer shell (3), a water tank (4) is arranged below the transformer shell (3), and a spiral cooling pipe (2) is arranged on the periphery of the transformer body (1); the beneficial effects are that: can cool off the transformer body through the spiral cooling tube, and when the high temperature of transformer body, the spiral cooling tube is not enough to reach the cooling effect, opens radiator fan through the controller and begins to cool off, reaches the cooling effect under spiral cooling tube and radiator fan's dual cooling effect, reduces the back when the temperature of transformer body, closes radiator fan through the controller to noise reduction and vibration.
Description
Technical Field
The invention relates to the technical field of transformers, in particular to a high-frequency high-power transformer with a heat dissipation device.
Background
Common cooling methods for transformers include self-cooling, air-cooling, liquid-cooling (including oil-cooling and water-cooling), and evaporative cooling. (1) Self-cooling: transformers rely on natural convection and thermal radiation from the surrounding air to dissipate heat. Therefore, the transformer is convenient to manufacture, install and use, but has poor heat dissipation effect, so that the transformer is generally limited to the transformer with small current capacity; (2) air-cooled: the transformer relies on flowing cold air to dissipate heat, which is supplied by special fans and blowers through certain air ducts. The air-cooled heat dissipation effect is better than the self-cooled heat dissipation effect, and the use and maintenance are more convenient, so that the air-cooled heat dissipation device is suitable for transformers with medium and large capacities. The disadvantage is that the transformer has noise, and when the copper beam is large, the volume and the weight of the transformer are large; (3) oil cooling: oil is generally used as the cooling medium. The transformer is divided into oil immersion cooling and oil pipe cooling, the cooling effect is good, external dust can be prevented, the transformer is almost not required to be maintained, and the size and the weight are large. (4) Water cooling: the water is used as a cooling medium, the heat dissipation effect is good, and the transformer is small in size. If the large-capacity transformer has conditions, a water cooling mode is preferably adopted. (5) Evaporative cooling: the principle of absorbing heat during liquid boiling evaporation is utilized to transfer the heat generated by the transformer to a cooling medium of a radiating surface, and low-boiling-point low-corrosiveness liquid such as Freon and the like is usually adopted. The mode has good heat dissipation effect, small volume and light weight, and is a better cooling mode. But the structure is complex and the process requirement is high.
In the prior art, in order to reduce the operation and maintenance cost of the transformer and improve the operation environment of the transformer, an air cooling mode is gradually adopted for a high-power cooling mode, a radiator fan is adopted for cooling in a general air cooling mode, and the fan has high power, so that strong vibration can be generated during operation, the operation stability of the transformer is influenced, and strong noise can be generated.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a high-frequency high-power transformer with a heat dissipation device. In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a high frequency high power transformer with heat abstractor, includes transformer body 1, transformer housing 3, its characterized in that: transformer body 1 installs the inside at transformer housing 3, transformer housing 3's below is equipped with water tank 4, transformer body 1's periphery is equipped with spiral cooling tube 2, spiral cooling tube 2's both ends are inlet tube 201 and outlet pipe 202, the lower extreme of inlet tube 201 is connected with suction pump 203, suction pump 203 places the bottom at water tank 4, be equipped with water inlet 402 and delivery port 403 on water tank 4's the lateral wall, transformer housing 3's side is equipped with radiator fan 305, be equipped with temperature sensor 301 on transformer housing 3's the inner wall, be equipped with the wiring panel 302 that the insulation board constitutes on transformer housing 3's the side, be equipped with high voltage binding post 303 and low voltage binding post 304 on the wiring panel 302.
A filter screen and a first valve body 404 are arranged on the water inlet 402, and a second valve body 405 is arranged on the water outlet 403.
The bottom of the water tank 4 is provided with a cooling device 5.
A water level sensor 401 is arranged on the inner wall of the water tank 4.
Be equipped with controller 306 on the outer wall of transformer housing 3, install alarm 307 on the controller 306, controller 306 passes through electric connection with temperature sensor 301, radiator fan 305, level sensor 401, alarm 307, cooling device 5, suction pump 203.
The transformer body 1 comprises an E-shaped upper magnetic core 101 and a lower magnetic core 102, the E-shaped upper magnetic core 101 and the E-shaped lower magnetic core 102 are mutually aligned and contacted to form an inverted ' Chinese character ' ri ' structure together, the middle part of the magnetic cores passes through the central cylinder of a transformer framework 103, the transformer bobbin 103 is made of insulating material and comprises a central cylinder, an upper partition plate 104, a middle partition plate 105 and a lower partition plate 106, the upper partition plate 104 and the lower partition plate 106 are positioned at the upper and lower edges of the central cylinder, the central partition plate 105 divides the central cylinder between the upper partition plate 104 and the lower partition plate 106 into two independent winding spaces, a high-voltage coil is wound on the central cylinder between the upper partition plate 104 and the middle partition plate 105, the end of the high-voltage coil is connected with the inner end of the high-voltage wiring terminal 303, a low-voltage coil is wound on the central cylinder between the middle partition plate 105 and the lower partition plate 106, and the end of the low-voltage coil is connected with the inner end of the low-voltage wiring terminal 304.
Be equipped with fastener around the magnetic core, fastener includes last mounting plate 107 and lower mounting plate 108, go up mounting plate 107 and set up the upper end at last magnetic core 101, lower mounting plate 108 sets up the lower extreme at magnetic core 102 down, go up and be connected through first fastener 1012 between mounting plate 107 and the lower mounting plate 108, the lower terminal surface of going up mounting plate 107 and the upper and lower both sides of magnetic core of the up end of lower mounting plate 108 are equipped with cell body 109, be equipped with preceding mounting plate 1010 and back mounting plate 1011 in the cell body 109, preceding mounting plate 1010 and back mounting plate 1011 are by last fastening strip 1014, lower fastening strip 1015 and fixed connection make up with first vertical bar 1016 and the second vertical bar 1017 between last fastening strip 1014 and lower fastening strip 1015, be connected through second fastener 1013 between preceding fastening plate 1010 and the back fastening plate 1011.
The first fastener 1012 is connected with the second fastener 1013 through a screw nut.
The high-voltage coil wire adopts a litz wire, and the sectional area of the litz wire is 2-30mm
2The low-voltage coil wire adopts a purple copper foil, and the sectional area of the purple copper foil is 12-150mm
2。
The invention has the beneficial effects that: the transformer body can be cooled through the spiral cooling pipe, when the temperature of the transformer body is too high and the spiral cooling pipe is not enough to achieve the cooling effect, the cooling fan is turned on through the controller to start cooling, the cooling effect is achieved under the double cooling effect of the spiral cooling pipe and the cooling fan, and after the temperature of the transformer body is reduced, the cooling fan is turned off through the controller to reduce noise and vibration; the scheme that the litz wires twisted by a plurality of thin wires are connected in parallel in a stranded manner and the purple copper foil can effectively reduce the influence of the skin effect and the proximity effect under the high-frequency condition; the fastening device can clamp the upper iron core and the lower iron core in the up-down direction and the front-back direction, and the influence on the function of the transformer caused by dislocation of the upper iron core and the lower iron core due to external vibration is avoided.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of FIG. 1 of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2 according to the present invention;
FIG. 4 is a schematic structural diagram of a transformer body according to the present invention;
FIG. 5 is a schematic structural view of the front fastening plate and the rear fastening plate of the present invention;
FIG. 6 is a schematic view of the structure of the spiral cooling pipe of the present invention.
Shown in the figure: the transformer comprises a transformer body 1, a spiral cooling pipe 2, a transformer shell 3, a water tank 4, a cooling device 5, an upper magnetic core 101, a lower magnetic core 102, a transformer framework 103, an upper partition plate 104, a middle partition plate 105, a lower partition plate 106, an upper fastening plate 107, a lower fastening plate 108, a tank body 109, a front fastening plate 1010, a rear fastening plate 1011, a first fastening piece 1012, a second fastening piece 1013, an upper fastening strip 1014, a lower fastening strip 1015, a first vertical strip 1016, a second vertical strip 1017, a water inlet pipe 201, a water outlet pipe 202, a water suction pump 203, a temperature sensor 301, a wiring panel 302, a high-voltage wiring terminal 303, a low-voltage wiring terminal 304, a cooling fan 305, a controller 306, an alarm 307, a water level sensor 401, a water inlet 402, a water outlet 403, a first valve body 404.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
The components, structures, mechanisms and the like described in the following examples are all conventional commercially available products unless otherwise specified.
Example 1:
a high-frequency high-power transformer with a heat dissipation device comprises a transformer body 1 and a transformer shell 3, the transformer body 1 is arranged inside a transformer shell 3, a water tank 4 is arranged below the transformer shell 3, the periphery of the transformer body 1 is provided with a spiral cooling pipe 2, two ends of the spiral cooling pipe 2 are provided with a water inlet pipe 201 and a water outlet pipe 202, the lower end of the water inlet pipe 201 is connected with a water suction pump 203, the water suction pump 203 is arranged at the bottom of the water tank 4, a water inlet 402 and a water outlet 403 are arranged on the side wall of the water tank 4, a heat radiation fan 305 is arranged on the side surface of the transformer housing 3, a temperature sensor 301 is arranged on the inner wall of the transformer shell 3, a wiring panel 302 formed by an insulating plate is arranged on the side surface of the transformer shell 3, the connection panel 302 is provided with a high voltage connection terminal 303 and a low voltage connection terminal 304.
The water tank is characterized in that a filter screen and a first valve body 404 are arranged on the water inlet 402, a second valve body 405 is arranged on the water outlet 403, the filter screen at the water inlet 402 is used for filtering impurities, the first valve body 404 is used for filling water into the water tank 4, and the second valve body is used for discharging water in the water tank 4.
The bottom of water tank 4 is equipped with cooling device 5, cooling device 5 is arranged in the water of feed tank 4 and cools down, be convenient for better for the cooling of transformer body 1.
Be equipped with level sensor 401 on the inner wall of water tank 4, level sensor 401 is used for measuring the water level in the water tank 4, and when the water level in the water tank 4 was less than the minimum that controller 306 set for, the steerable alarm 307 of controller 306 was reported to the police to remind the staff to supply water to tank 4 and carry out the moisturizing.
Be equipped with controller 306 on the outer wall of transformer housing 3, install alarm 307 on the controller 306, controller 306 passes through electric connection with temperature sensor 301, radiator fan 305, level sensor 401, alarm 307, cooling device 5, suction pump 203.
The transformer body 1 comprises an E-shaped upper magnetic core 101 and a lower magnetic core 102, the E-shaped upper magnetic core 101 and the E-shaped lower magnetic core 102 are mutually aligned and contacted to form an inverted ' Chinese character ' ri ' structure together, the middle part of the magnetic cores passes through the central cylinder of a transformer framework 103, the transformer bobbin 103 is made of insulating material and comprises a central cylinder, an upper partition plate 104, a middle partition plate 105 and a lower partition plate 106, the upper partition plate 104 and the lower partition plate 106 are positioned at the upper and lower edges of the central cylinder, the central partition plate 105 divides the central cylinder between the upper partition plate 104 and the lower partition plate 106 into two independent winding spaces, a high-voltage coil is wound on the central cylinder between the upper partition plate 104 and the middle partition plate 105, the end of the high-voltage coil is connected with the inner end of the high-voltage wiring terminal 303, a low-voltage coil is wound on the central cylinder between the middle partition plate 105 and the lower partition plate 106, and the end of the low-voltage coil is connected with the inner end of the low-voltage wiring terminal 304.
Be equipped with fastener around the magnetic core, fastener includes last mounting plate 107 and lower mounting plate 108, go up mounting plate 107 and set up the upper end at last magnetic core 101, lower mounting plate 108 sets up the lower extreme at magnetic core 102 down, go up and be connected through first fastener 1012 between mounting plate 107 and the lower mounting plate 108, the lower terminal surface of going up mounting plate 107 and the upper and lower both sides of magnetic core of the up end of lower mounting plate 108 are equipped with cell body 109, be equipped with preceding mounting plate 1010 and back mounting plate 1011 in the cell body 109, preceding mounting plate 1010 and back mounting plate 1011 are by last fastening strip 1014, lower fastening strip 1015 and fixed connection make up with first vertical bar 1016 and the second vertical bar 1017 between last fastening strip 1014 and lower fastening strip 1015, be connected through second fastener 1013 between preceding fastening plate 1010 and the back fastening plate 1011. The upper fastening plate 107 and the lower fastening plate 108 can fasten the upper iron core 101 and the lower iron core 102 in the vertical direction after being connected by the first fastening member 1012, so that the upper iron core and the lower iron core cannot be contacted due to external vibration; preceding mounting plate 1010 and back mounting plate 1011 can be fixed iron core 101 and lower iron core 102 in the front-back direction after passing through the connection of second fastener 1013, avoid making upper and lower iron core dislocation because of external vibration, influence the realization of transformer function, first vertical retort 1016 and second vertical retort 1017 are pasted tightly with the both sides of "day" word structure of upper and lower iron core.
The first fastener 1012 is connected with the second fastener 1013 through a screw nut.
The high-voltage coil wire adopts a litz wire, and the sectional area of the litz wire is 2-30mm
2The low-voltage coil wire adopts a purple copper foil, and the sectional area of the purple copper foil is 12-150mm
2。
The scheme of the litz wire stranded by a plurality of thin wires in parallel connection and the purple copper foil can effectively reduce the influence of skin effect and proximity effect under the high-frequency condition.
The skin and proximity effects are at high frequencies, which concentrates the current on a small portion of the wire cross-section, increasing copper loss and causing excessive coil temperature rise. The litz wires twisted by a plurality of thin wires can effectively reduce the influence of the skin effect and the proximity effect, and the total sectional area of the wire can be increased by connecting a plurality of strands in parallel when the working current is larger.
The working process of the invention is as follows: after the controller 306 is connected with a power supply, the water pump 203 and the cooling device 5 start to work, under the action of the water pump 203, water cooled by the cooling device 5 enters the spiral cooling pipe 2 from the water inlet pipe 201, circulates in the spiral cooling pipe 2 and then flows out of the water outlet pipe 202 into the water tank 4 to sequentially circulate to realize cooling of the transformer body 1, the temperature sensor 301 can measure the temperature in the transformer housing 3 and transmit the measured value to the controller 306 in an electric signal mode, when the measured temperature is higher than the temperature set in the controller 306, the controller 306 controls the cooling fan 305 to be opened, so that the spiral cooling pipe 2 and the cooling fan 305 simultaneously carry out double cooling in the transformer body 1 and the transformer housing 3, and when the temperature value measured by the temperature sensor 301 is lower than the temperature value set in the controller 306, the controller 306 controls the cooling fan 305 to be closed, noise and vibration are reduced, and dynamic control is performed in sequence to realize cooling of the transformer body 1 and the transformer shell 3.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Moreover, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (7)
1. The utility model provides a high frequency high power transformer with heat abstractor, includes transformer body (1), transformer housing (3), its characterized in that: the transformer comprises a transformer body (1), a water tank (4) is arranged below the transformer shell (3), a spiral cooling pipe (2) is arranged on the periphery of the transformer body (1), two ends of the spiral cooling pipe (2) are an inlet pipe (201) and an outlet pipe (202), the lower end of the inlet pipe (201) is connected with a water suction pump (203), the water suction pump (203) is placed at the bottom of the water tank (4), a water inlet (402) and a water outlet (403) are formed in the side wall of the water tank (4), a heat radiation fan (305) is arranged on the side face of the transformer shell (3), a temperature sensor (301) is arranged on the inner wall of the transformer shell (3), a cooling device (5) is arranged at the bottom of the water tank (4), and a water level sensor (401) is arranged on the inner wall of the water tank (4), the transformer is characterized in that a wiring panel (302) formed by insulating plates is arranged on the side face of the transformer shell (3), and a high-voltage wiring terminal (303) and a low-voltage wiring terminal (304) are arranged on the wiring panel (302).
2. A high-frequency high-power transformer with a heat dissipating device according to claim 1, characterized in that: the water inlet (402) is provided with a filter screen and a first valve body (404), and the water outlet (403) is provided with a second valve body (405).
3. A high-frequency high-power transformer with a heat dissipating device according to claim 1, characterized in that: be equipped with controller (306) on the outer wall of transformer housing (3), install alarm (307) on controller (306), controller (306) and temperature sensor (301), radiator fan (305), level sensor (401), alarm (307), cooling device (5), suction pump (203) pass through electric connection.
4. A high-frequency high-power transformer with a heat dissipating device according to claim 1, characterized in that: the transformer body (1) comprises an E-shaped upper magnetic core (101) and a lower magnetic core (102), the E-shaped upper magnetic core (101) and the E-shaped lower magnetic core (102) are aligned and contacted with each other to form an inverted-Y-shaped structure together, the middle part of the magnetic core penetrates through a central cylinder of a transformer framework (103), the transformer framework (103) is made of insulating materials and comprises a central cylinder, an upper partition plate (104), a middle partition plate (105) and a lower partition plate (106), the upper partition plate (104) and the lower partition plate (106) are positioned at the upper edge and the lower edge of the central cylinder, the central cylinder between the upper partition plate (104) and the lower partition plate (106) is divided into two independent winding spaces by the middle partition plate (105), a high-voltage coil is wound on the central cylinder between the upper partition plate (104) and the middle partition plate (105), and the end of the high-voltage coil is connected with the inner end of a high-voltage wiring, and a low-voltage coil is wound on the central cylinder between the middle partition plate (105) and the lower partition plate (106), and the end of the low-voltage coil is connected with the inner end of a low-voltage wiring terminal (304).
5. The high-frequency high-power transformer with the heat dissipation device according to claim 4, wherein: the periphery of the magnetic core is provided with a fastening device which comprises an upper fastening plate (107) and a lower fastening plate (108), the upper fastening plate (107) is arranged at the upper end of the upper magnetic core (101), the lower fastening plate (108) is arranged at the lower end of the lower magnetic core (102), the upper fastening plate (107) and the lower fastening plate (108) are connected through a first fastener (1012), the two sides of the upper and lower magnetic cores of the lower end surface of the upper fastening plate (107) and the upper end surface of the lower fastening plate (108) are provided with groove bodies (109), a front fastening plate (1010) and a rear fastening plate (1011) are arranged in the tank body (109), the front fastening plate (1010) and the rear fastening plate (1011) are composed of an upper fastening strip (1014), a lower fastening strip (1015), and a first vertical strip (1016) and a second vertical strip (1017) which are fixedly connected between the upper fastening strip (1014) and the lower fastening strip (1015), the front fastening plate (1010) and the rear fastening plate (1011) are connected through a second fastener (1013).
6. The high-frequency high-power transformer with the heat dissipation device according to claim 5, wherein: the first fastener (1012) and the second fastener (1013) are connected by screw nuts.
7. The high-frequency high-power transformer with the heat dissipation device according to claim 4, wherein: the high-voltage coil wire adopts a litz wire, and the sectional area of the litz wire is 2-30mm
2The low-voltage coil wire adopts a purple copper foil, and the sectional area of the purple copper foil is 12-150mm
2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910230321.3A CN110783068A (en) | 2019-03-26 | 2019-03-26 | High-frequency high-power transformer with heat abstractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910230321.3A CN110783068A (en) | 2019-03-26 | 2019-03-26 | High-frequency high-power transformer with heat abstractor |
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| Publication Number | Publication Date |
|---|---|
| CN110783068A true CN110783068A (en) | 2020-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910230321.3A Pending CN110783068A (en) | 2019-03-26 | 2019-03-26 | High-frequency high-power transformer with heat abstractor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115938732A (en) * | 2022-12-29 | 2023-04-07 | 扬州永鼎电气科技有限公司 | High-heat-dissipation transformer with inner air guide pipe structure and working method thereof |
| CN116313415A (en) * | 2023-03-26 | 2023-06-23 | 江苏晨朗电子集团有限公司 | Be suitable for single-phase and three-phase common magnetic integration transformer that uses |
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| CN108806937A (en) * | 2018-07-10 | 2018-11-13 | 江苏凡高电气有限公司 | A kind of power transformer that radiating efficiency is high |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115938732A (en) * | 2022-12-29 | 2023-04-07 | 扬州永鼎电气科技有限公司 | High-heat-dissipation transformer with inner air guide pipe structure and working method thereof |
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| CN116313415A (en) * | 2023-03-26 | 2023-06-23 | 江苏晨朗电子集团有限公司 | Be suitable for single-phase and three-phase common magnetic integration transformer that uses |
| CN116313415B (en) * | 2023-03-26 | 2023-11-21 | 江苏晨朗电子集团有限公司 | Be suitable for single-phase and three-phase common magnetic integration transformer that uses |
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Application publication date: 20200211 |
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