A planar transformer for bidirectional inverter charger

Abstract

The present invention relates to the technical field of planar transformers, and discloses a planar transformer for a bidirectional inverter charger, comprising: a heat-conducting frame and a plurality of electrodes symmetrically fixed on both sides, two magnetic cores are arranged on the outer side of the heat-conducting frame, and the magnetic cores are located on the inner side of the heat-conducting frame, the outer sides of the two magnetic cores are connected and fixed with a support sleeve, the outer side of the heat-conducting frame is wound with a coil, and the coil is located on the inner side of the magnetic core, and further comprising: a shielding part, which is arranged on the outer side of the support sleeve and the coil; a dispersion reduction part, which is arranged on the outer side of the coil and penetrates the shielding part; an electrical connector, which is arranged below the heat-conducting frame, is located on the outer side of the electrode, and is connected to the dispersion reduction part; the present invention arranges the shielding part, and when installing the planar transformer, the isolating part arranged in the shielding part is sleeved on the outer side of the supporting spacer arranged in the shielding part, so that the isolating part and the supporting spacer cooperate to form multi-layer protection on the outer side of the magnetic core and the coil, and uses iron, copper and aluminum foil materials to cooperate to form multi-layer electromagnetic isolation to reduce electromagnetic interference.

Description

Technical Field

[0001] The present invention relates to the technical field of planar transformers, and in particular to a planar transformer for a bidirectional inverter charger. Background Art

[0002] Bidirectional inverter chargers usually need to use a planar transformer to adjust the voltage, and the planar transformer needs to be electrically connected to the inverter charger through electrodes using wires to allow electricity to flow through the electrodes, and use coils and magnetic cores to enable the planar transformer to adjust the voltage. The coils and magnetic cores will generate heat when working, which can be dissipated using a thermal conductive frame. However, traditional planar transformers still have problems in actual operation.

[0003] For example, in actual operation, the high-frequency signals and fast switching actions in the bidirectional inverter charger may cause electromagnetic interference (EMI), which can affect surrounding electronic equipment and even affect the stability and efficiency of the planar transformer. Summary of the invention

[0004] The present invention provides a planar transformer for a bidirectional inverter charger, which uses a shielding isolation structure arranged outside a magnetic core and a coil to shield and isolate electromagnetic interference, thereby preventing electromagnetic interference from affecting surrounding electronic equipment and the operation of the planar transformer, and improving stability and efficiency.

[0005] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0006] In a first aspect, a planar transformer for a bidirectional inverter charger comprises: a heat-conducting frame and a plurality of electrodes symmetrically fixed on both sides, two magnetic cores are arranged on the outer side of the heat-conducting frame, and the magnetic cores are located on the inner side of the heat-conducting frame, and the outer sides of the two magnetic cores are connected and fixed with a support sleeve, and the outer side of the heat-conducting frame is wound with a coil, and the coil is located on the inner side of the magnetic core, and further comprises:

[0007] A shielding part is arranged outside the support sleeve and the coil to isolate interference;

[0008] The shielding part includes a spacer and an isolator, wherein the spacer is arranged on the outside of the support sleeve, and the isolator is connected to the spacer and is located on the outside of the coil;

[0009] The heat dissipation reducing part is arranged outside the coil and penetrates the shielding part to cool down the heat dissipation coil and the magnetic core;

[0010] The heat dissipation reducing part includes a heat sink and a guide member, the heat sink is arranged through the isolation member, and the guide member is connected to the heat sink;

[0011] The electrical connector is arranged below the heat-conducting frame and outside the electrode, and is connected to the heat sink to facilitate quick replacement and maintenance;

[0012] The electrical connector comprises a supporting member and a conductive member, wherein the supporting member is connected to the heat-conducting frame and to the isolating member, and the conductive member is connected to the supporting member.

[0013] Further, the spacer comprises:

[0014] There are multiple support blocks, and the multiple support blocks are evenly fixed on the outside of the support sleeve;

[0015] The copper wire is evenly fixed through the support block;

[0016] The copper plates are provided in plurality, and the plurality of copper plates are fixed on the supporting block and are located outside the coil.

[0017] Furthermore, the isolating element comprises:

[0018] An aluminum foil sleeve is sleeved on the outer sides of the plurality of copper plates;

[0019] There are two aluminum foil rings, which are respectively arranged on the inner side and the outer side of the plurality of copper plates and are located below the aluminum foil sleeve;

[0020] The auxiliary spacer parts are arranged on the outside of the support block and the aluminum foil sleeve and are located on the outside of the copper plate.

[0021] Furthermore, the auxiliary partition part includes:

[0022] There are multiple connecting plates, and the multiple connecting plates are evenly and fixedly connected between the two aluminum foil rings;

[0023] A plurality of the connecting plates are adjacent to a plurality of the copper plates;

[0024] The iron shell is arranged on the outside of the support block and the aluminum foil sleeve and is located on the outside of the copper plate.

[0025] Furthermore, the heat sink comprises:

[0026] A protective frame is fixed on the support sleeve and is located outside the heat conducting frame, the magnetic core and the coil;

[0027] A through opening is provided through the aluminum foil sleeve and is adjacent to the plurality of copper plates;

[0028] The heat dissipation fan is arranged through a side of the iron shell away from the aluminum foil sleeve and is located above the aluminum foil sleeve.

[0029] Further, the guide member comprises:

[0030] The air duct is arranged through the opening and is fixedly connected with the aluminum foil sleeve;

[0031] A rubber ring, fixed on the air duct;

[0032] The rubber pad is fixed on the side of the cooling fan close to the wind tube and fits with the rubber ring;

[0033] One end of the air duct penetrates the protective frame and is fixedly connected and is located outside the support sleeve and the aluminum foil ring, and the other end extends to the inner side of the heat conduction frame and is located outside the coil.

[0034] Furthermore, the supporting member comprises:

[0035] A support seat is arranged below the heat conducting frame;

[0036] The guide plate is symmetrically arranged through the heat conducting frame and has beveled angles at both ends;

[0037] A plurality of fixing seats are symmetrically fixed on the support and correspond to the positions of the electrodes;

[0038] The inclined C block is arranged on a fixed seat for translation;

[0039] A groove is provided on the fixing seat and is located below the C plate;

[0040] The connecting part is arranged on a side of the iron shell close to the support seat and is connected with the support seat and the inclined C block.

[0041] Further, the connecting parts include:

[0042] There are multiple C plates, which are fixed on one side of the iron shell close to the support seat and are adjacent to the inclined C blocks;

[0043] A baffle, symmetrically fixed on the inner side of the groove;

[0044] The plug board is inserted into the inner side of the groove and connected to the C board through a connecting component;

[0045] The arc plate is symmetrically fixed on the outer side of the plug plate;

[0046] The reed is fixed between the arc plate and the plug plate.

[0047] Furthermore, the conductive member comprises:

[0048] A first conductive sheet, fixed on the inner side of the oblique C block;

[0049] A conductive support, fixed to one end of the first conductive sheet and located below the C plate;

[0050] The second conductive sheet is fixed on the inner side of the C plate, and one end of the second conductive sheet is in contact with the conductive support;

[0051] A conductive block is fixed on a side of the second conductive sheet close to the inclined C block and extends to the inner side of the conductive support;

[0052] The guide part is arranged on the fixed seat.

[0053] Further, the guide parts include:

[0054] The slider is fixed on a side of the inclined C block close to the fixed seat and is translationally connected with the fixed seat;

[0055] The connecting block is fixed on a side of the fixing base away from the heat conducting frame;

[0056] A guide rod is fixed on the inner side of the connecting block and is arranged through the sliding block;

[0057] The spring is sleeved on the outside of the guide rod, and one end of the spring is connected to the slider and the other end is connected to the connecting block;

[0058] The positioning ring is fixed to the end of the connecting block away from the supporting seat.

[0059] The above solution of the present invention includes at least the following beneficial effects:

[0060] By providing a shielding part, when installing the planar transformer, the isolating member provided in the shielding part is sleeved on the outside of the supporting member provided in the shielding part, so that the isolating member and the supporting member cooperate with each other to form multi-layer protection on the outside of the magnetic core and the coil, and multi-layer electromagnetic isolation is formed by using iron, copper and aluminum foil materials to reduce electromagnetic interference and improve the stability and efficiency of the planar transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] Figure 1 A schematic diagram of the overall three-dimensional structure of a planar transformer provided in an embodiment of the present invention;

[0062] Figure 2 A schematic diagram of the three-dimensional structure of a planar transformer, a support, a heat dissipation fan and an aluminum foil sleeve combination provided in an embodiment of the present invention;

[0063] Figure 3 A three-dimensional exploded view of a heat-conducting frame, a magnetic core, and a coil assembly provided in an embodiment of the present invention;

[0064] Figure 4 A schematic diagram of the three-dimensional structure of a magnetic core and a support sleeve combination provided in an embodiment of the present invention;

[0065] Figure 5 A schematic diagram of the three-dimensional structure of a heat-conducting frame provided in an embodiment of the present invention;

[0066] Figure 6 A schematic diagram of the three-dimensional structure of a heat-conducting frame, a coil, an aluminum foil sleeve and an air duct combination provided in an embodiment of the present invention;

[0067] Figure 7 A schematic diagram of the three-dimensional structure of a heat-conducting frame, a support sleeve, a coil and an air duct combination provided in an embodiment of the present invention;

[0068] Figure 8A schematic diagram of the three-dimensional structure of the air duct and the protective frame combination provided by an embodiment of the present invention;

[0069] Fig. 9 A three-dimensional exploded view of the heat dissipation fan, air duct, aluminum foil sleeve and protective frame assembly provided in an embodiment of the present invention;

[0070] Fig.10 A schematic diagram of a three-dimensional structure of a combination of a fixing seat, a connecting block, an inclined C block and a C plate provided in an embodiment of the present invention;

[0071] Fig.11 A three-dimensional exploded view of the combination of a fixing seat, a connecting block, an inclined C block, a C plate, a spring and a guide rod provided in an embodiment of the present invention;

[0072] Fig.12 A three-dimensional exploded diagram of a C-plate, a first conductive sheet, a second conductive sheet and a connecting plate assembly provided in an embodiment of the present invention;

[0073] Fig.13 The embodiment of the present invention provides Fig.11 Schematic diagram of the structure at A in FIG.

[0074] Fig.14 The embodiment of the present invention provides Fig.12 Schematic diagram of the structure at point B in the figure.

[0075] Description of reference numerals:

[0076] In the figure: 1, heat conducting frame; 2, electrode; 3, magnetic core; 4, support sleeve; 5, coil; 6, support block; 7, copper wire; 8, copper plate; 9, aluminum foil sleeve; 10, aluminum foil ring; 11, connecting plate; 12, protective frame; 13, opening; 14, air duct; 15, rubber ring; 16, cooling fan; 17, iron shell; 18, air duct; 19, support seat; 20, guide groove; 21, guide plate; 22, fixing seat; 23 , through slot; 24, inclined C block; 25, socket; 26, L plate; 27, C plate; 28, groove; 29, baffle; 30, connecting plate; 31, plug plate; 32, arc plate; 33, spring; 34, first conductive sheet; 35, conductive support; 36, second conductive sheet; 37, conductive block; 38, slider; 39, connecting block; 40, guide rod; 41, spring; 42, positioning ring; 43, rubber pad. DETAILED DESCRIPTION

[0077] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to enable the scope of the present invention to be fully communicated to those skilled in the art.

[0078] like Figures 1 to 14 As shown, an embodiment of the present invention provides a planar transformer for a bidirectional inverter charger, comprising: a heat-conducting frame 1 and a plurality of electrodes 2 symmetrically fixed on both sides, two magnetic cores 3 are arranged on the outside of the heat-conducting frame 1, and the magnetic core 3 is located on the inside of the heat-conducting frame 1, and the outsides of the two magnetic cores 3 are connected and fixed with a support sleeve 4, and the outside of the heat-conducting frame 1 is wound with a coil 5, and the coil 5 is located on the inside of the magnetic core 3, and also includes:

[0079] The shielding part is arranged outside the support sleeve 4 and the coil 5 to isolate interference;

[0080] The shielding part includes a spacer and an isolator, the spacer is arranged on the outside of the support sleeve 4, and the isolator is connected to the spacer and is located on the outside of the coil 5;

[0081] The heat dissipation reducing part is arranged outside the coil 5 and penetrates the shielding part to cool down the heat dissipation coil 5 and the magnetic core 3;

[0082] The heat sink comprises a heat sink and a connecting member, the heat sink is arranged through the isolating member, and the connecting member is connected to the heat sink;

[0083] The electrical connector is arranged below the heat-conducting frame 1 and outside the electrode 2, and is connected to the heat sink to facilitate quick replacement and maintenance;

[0084] The electrical connector includes a supporting member and a conductive member. The supporting member is connected to the heat-conducting frame 1 and to the isolating member, and the conductive member is connected to the supporting member.

[0085] Specifically, the thermally conductive frame 1 can provide a through channel and support for the magnetic core 3, and the thermally conductive frame 1 can provide a winding space for the coil 5. The support sleeve 4 can provide fixation and protection for the magnetic core 3 under the support of the thermally conductive frame 1. The thermally conductive frame 1 can stably support the electrode 2, and the electrode 2 is electrically connected to the coil 5.

[0086] In the actual application of this embodiment: the staff can connect the corresponding wire line of the bidirectional inverter charger to the electrode 2, so that the current can be transmitted to the coil 5 through the electrode 2, and the current flows around the magnetic core 3 along the coil 5, so that the magnetic core 3 and the coil 5 cooperate to perform voltage transformation. At the same time, the heat generated when the current flows along the coil 5 will be transmitted to the heat-conducting frame 1, so that the heat-conducting frame 1 absorbs and dissipates the heat into the air.

[0087] As a preferred embodiment of the present invention, the spacer comprises:

[0088] There are multiple support blocks 6, and the multiple support blocks 6 are evenly fixed on the outside of the support sleeve 4;

[0089] Copper wire 7, passes through support block 6 and is evenly fixed;

[0090] There are multiple copper plates 8 , which are fixed on the support block 6 and located outside the coil 5 .

[0091] Specifically, the support sleeve 4 can provide stable support for the support block 6 under the support of the heat conducting frame 1, and the support block 6 can provide a through channel and support positioning for the copper wire 7, so that the copper wire 7 can be arranged in a ring shape, and the support block 6 can stably support the copper plate 8, which is made of copper.

[0092] Isolators include:

[0093] An aluminum foil sleeve 9 is sleeved on the outer sides of the plurality of copper plates 8;

[0094] There are two aluminum foil rings 10, which are respectively arranged on the inner side and the outer side of the plurality of copper plates 8 and are located below the aluminum foil sleeve 9;

[0095] The auxiliary spacer parts are arranged on the outside of the support block 6 and the aluminum foil sleeve 9 and are located on the outside of the copper plate 8.

[0096] Specifically, the copper plate 8 can provide a stable support for the aluminum foil sleeve 9. Copper and aluminum are good conductors and have strong reflection capabilities for high-frequency electromagnetic waves (such as radio frequency interference). The connecting plate 11 can connect the two aluminum foil rings 10 to each other, so that one of the aluminum foil rings 10 can provide support for the other aluminum foil ring 10 through the connecting plate 11 under the support of the copper plate 8.

[0097] Auxiliary partition parts include:

[0098] There are multiple connecting plates 11, and the multiple connecting plates 11 are evenly and fixedly connected between the two aluminum foil rings 10;

[0099] A plurality of connection plates 11 are adjacent to the plurality of copper plates 8;

[0100] The iron shell 17 is arranged on the outside of the support block 6 and the aluminum foil sleeve 9 , and is located on the outside of the copper plate 8 .

[0101] Specifically, the iron shell 17 can provide protection for the facilities inside it and can reflect some electromagnetic waves.

[0102] In the actual application of this embodiment, when electromagnetic waves encounter these materials, most of the energy will be reflected back to the original space to reduce penetration. The copper plate 8 and aluminum foil can isolate the internal circuit from the external electromagnetic field, and the high-frequency electromagnetic waves will induce eddy currents in the copper plate 8, copper wire 7, aluminum foil sleeve 9 and aluminum foil ring 10, and part of the energy will be converted into heat energy (Joule heat) and consumed. The high-frequency electromagnetic waves will induce eddy currents in the iron shell 17, copper wire 7, copper plate 8, aluminum foil sleeve 9 and aluminum foil ring 10, and part of the energy will be converted into heat energy (Joule heat) and consumed. Part of the electromagnetic interference that passes through the aluminum foil sleeve 9 will be received by the copper plate 8, and the electromagnetic interference that passes through the aluminum foil ring 10 will be received by the copper wire 7 and copper plate 8, thereby playing a role of multi-layer isolation, reducing electromagnetic interference, avoiding electromagnetic interference from affecting the surrounding electronic equipment and the operation of the planar transformer, and improving stability and efficiency.

[0103] In another preferred embodiment of the present invention, the heat sink comprises:

[0104] The protective frame 12 is fixed on the support sleeve 4 and is located outside the heat-conducting frame 1, the magnetic core 3 and the coil 5;

[0105] A through opening 13 is provided through the aluminum foil sleeve 9 and is adjacent to the plurality of copper plates 8;

[0106] The heat dissipation fan 16 is arranged through a side of the iron shell 17 away from the aluminum foil sleeve 9 and is located above the aluminum foil sleeve 9 .

[0107] Specifically, the protective frame 12 can provide protection for the magnetic core 3 and the coil 5 under the support of the support sleeve 4, and is made of nickel alloy, which can shield part of the electromagnetic interference. The aluminum foil sleeve 9 can provide an opening space for the through hole 13, and the through hole 13 can provide a through passage for the wind tube 14. The wind tube 14 is also made of nickel alloy. After the cooling fan 16 is started, it can suck in the air at the bottom and blow it out from the top, forming a negative pressure in the wind tube 14 and the protective frame 12 to generate suction.

[0108] The guide parts include:

[0109] The air cylinder 14 is arranged through the through opening 13 and is fixedly connected to the aluminum foil sleeve 9;

[0110] A rubber ring 15 is fixed on the air cylinder 14;

[0111] The rubber pad 43 is fixed to the side of the heat dissipation fan 16 close to the wind tube 14 and fits with the rubber ring 15;

[0112] One end of the air duct 18 passes through the protective frame 12 and is fixedly connected thereto and is located outside the support sleeve 4 and the aluminum foil ring 10 , and the other end of the air duct 18 extends to the inside of the heat conducting frame 1 and is located outside the coil 5 .

[0113] Specifically, one end of the protective frame 12 away from the support sleeve 4 is fixedly connected to the aluminum foil sleeve 9, the protective frame 12 can stably support the aluminum foil sleeve 9 under the support of the support sleeve 4, and the aluminum foil sleeve 9 can provide stable support for the air duct 14 under the support of the protective frame 12 and the copper plate 8, the air duct 14 can stably support the rubber ring 15 under the support of the aluminum foil sleeve 9, the heat dissipation fan 16 can provide stable support for the rubber pad 43, and the rubber ring 15 and the rubber pad 43 can provide a through channel for air, and the rubber pad 43 can fit with the rubber ring 15, the rubber ring 15 and the rubber pad 43 are both elastic, can be deformed under the action of external force, and rebound after the external force disappears, the rubber ring 15 and the rubber pad 43 fit together to play a sealing role, the protective frame 12 can provide support for the air duct 18, and the air duct 18 can provide a channel for air to enter the protective frame 12.

[0114] In the actual application of this embodiment, the staff can move the heat dissipation fan 16 through the iron shell 17 according to the actual needs, so that the heat dissipation fan 16 drives the rubber pad 43 to move together, and then the iron shell 17 covers one end of the air duct 18 and the outer side of the copper plate 8 and the support block 6. At the same time, the heat dissipation fan 16 drives the rubber pad 43 to fit with the rubber ring 15 under the support of the iron shell 17, so that the rubber ring 15 can firmly support the heat dissipation fan 16 through the rubber pad 43 under the support of the wind tube 14, and then the heat dissipation fan 16 can support the iron shell 17. When the staff energizes the heat dissipation fan 16, the heat dissipation fan 16 6 will suck in the air in the wind tube 14 and discharge it to the outside from the top, thereby forming a negative pressure inside the wind tube 14, and then the air in the protective frame 12 will enter the inside of the wind tube 14, and at the same time, the air around the bottom of the copper wire 7 will enter the inside of the air duct 18, and enter the inside of the protective frame 12 along the air duct 18, so that the heat generated by the operation of the copper wire 7 can pass through the wind tube 14 from the inside of the protective frame 12 into the inside of the heat dissipation fan 16, and pass through the heat dissipation fan 16 to the outside, so that the heat dissipation effect of the planar transformer can be better, and the heat dissipation efficiency and cooling effect are improved.

[0115] As a preferred embodiment of the present invention, the supporting member comprises:

[0116] A support 19 is arranged below the heat conducting frame 1;

[0117] The guide plate 21 is symmetrically arranged through the heat conducting frame 1 and has beveled angles at both ends;

[0118] The fixing base 22 has a plurality of parts and is symmetrically fixed on the support base 19 and corresponds to the position of the electrode 2;

[0119] An oblique C block 24 is arranged on the fixed seat 22 for translation;

[0120] A groove 28 is formed on the fixing seat 22 and is located below the C-plate 27;

[0121] The connecting part is arranged on a side of the iron shell 17 close to the support 19 and is connected to the support 19 and the inclined C block 24 .

[0122] Specifically, a guide groove 20 is provided through the interior of the heat-conducting frame 1, and the guide groove 20 is located on the outside of the guide plate 21. A through groove 23 is provided through the end of the fixing seat 22 away from the support seat 19, and the through groove 23 is located on the outside of the slider 38. A socket 25 is provided at the end of the inclined C block 24 away from the fixing seat 22. A hole is provided through the interior of the support seat 19, and the staff can fix the support seat 19 to the workplace through the hole using a fixing component, and the support seat 19 can provide stable support for the guide plate 21. The guide plate 21 can provide a mobile guiding function for the heat-conducting frame 1 through the guide groove 20, and can cooperate with the support seat 19 to provide support for the heat-conducting frame 1. The support seat 19 can provide a through channel for the grounding wire, so that the staff can connect the grounding wire to the planar transformer through the support seat 19. The support seat 19 can stably support the fixing seat 22, and the fixing seat 22 can provide a space for the groove 28.

[0123] The connection parts include:

[0124] There are multiple C plates 27, and the multiple C plates 27 are fixed to one side of the iron shell 17 close to the support 19 and adjacent to the inclined C block 24;

[0125] The baffle 29 is symmetrically fixed on the inner side of the groove 28;

[0126] The plug plate 31 is inserted into the inner side of the groove 28 and connected to the C plate 27 through a connecting component;

[0127] The arc plate 32 is symmetrically fixed on the outer side of the plug plate 31;

[0128] The spring leaf 33 is fixed between the arc plate 32 and the plug plate 31 .

[0129] Specifically, an L-plate 26 is fixed to one end of the C-plate 27 close to the inclined C-block 24, and the L-plate 26 extends to the inner side of the socket 25 and is embedded therein. A connecting plate 30 is fixed to one end of the C-plate 27 close to the fixing seat 22, and the connecting plate 30 is fixedly connected to the plug plate 31 at one end away from the C-plate 27. The iron shell 17 can firmly support the C-plate 27, and the plug plate 31 can provide firm support for the spring leaf 33 and can provide support for both ends of the arc plate 32. The arc plate 32 and the spring leaf 33 can be deformed under the action of external force, and will rebound when the external force disappears. The electrode 2 can push the inclined C-block 24 under the action of external force, and use the inclined surface of the inclined C-block 24 to push the inclined C-block 24 to move in a direction away from the heat-conducting frame 1.

[0130] Conductive parts include:

[0131] A first conductive sheet 34 is fixed to the inner side of the oblique C block 24;

[0132] The conductive support 35 is fixed to one end of the first conductive sheet 34 and is located below the C-plate 27;

[0133] The second conductive sheet 36 is fixed to the inner side of the C-plate 27, and one end of the second conductive sheet 36 is in contact with the conductive support 35;

[0134] The conductive block 37 is fixed to a side of the second conductive sheet 36 close to the inclined C block 24 and extends to the inner side of the conductive support 35;

[0135] The guide part is arranged on the fixing seat 22 .

[0136] Specifically, the inclined C block 24 can provide stable support for the first conductive sheet 34, which is in contact with the electrode 2. The first conductive sheet 34 can provide stable support for the conductive support 35. The second conductive sheet 36 is in contact with the electrode 2 and can provide support for the conductive block 37. The conductive block 37, the second conductive sheet 36, the first conductive sheet 34 and the conductive support 35 can transmit electricity.

[0137] The guiding parts include:

[0138] The slider 38 is fixed to a side of the inclined C block 24 close to the fixed seat 22 and is translationally connected to the fixed seat 22;

[0139] The connecting block 39 is fixed to a side of the fixing base 22 away from the heat conducting frame 1;

[0140] The guide rod 40 is fixed on the inner side of the connecting block 39 and is arranged through the sliding block 38;

[0141] The spring 41 is sleeved on the outside of the guide rod 40, and one end of the spring 41 is connected to the slider 38, and the other end of the spring 41 is connected to the connecting block 39;

[0142] The positioning ring 42 is fixed to one end of the connecting block 39 away from the supporting seat 19 .

[0143] Specifically, the baffle 29 can squeeze the arc plate 32 under the support of the fixed seat 22, the groove 28 can provide insertion space for the arc plate 32, the spring 33 and the plug plate 31, the through groove 23 can provide a moving guide and a through channel for the slider 38, and the connecting block 39 can firmly support the guide rod 40 under the support of the fixed seat 22. The guide rod 40 can provide a moving guide and support for the slider 38, and can provide support for the spring 41. The spring 41 is elastic, and the connecting block 39 can firmly support the positioning ring 42.

[0144] In the actual application process of this embodiment, the staff can pull the iron shell 17 upward according to the actual needs, so that the iron shell 17 drives the heat dissipation fan 16 and the rubber pad 43 to move upward together, and then remove the iron shell 17, the heat dissipation fan 16 and the rubber pad 43. At the same time, the iron shell 17 will drive the C plate 27 to move upward together under the action of external force, so that the C plate 27 uses the external force to drive the L plate 26 and the connecting plate 30 to move upward together, and then the L plate 26 is pulled out of the socket 25 by the external force and separated from the inclined C plate 27. At the same time, the connecting plate 30 uses the external force to drive the plug plate 31 to move upward together with the iron shell 17, so that the plug plate 31 drives the arc plate 32 and the spring plate 33 to move upward along the inner side of the groove 28. In the process of moving, the baffle 2 9 will resist the arc plate 32 under the support of the fixed seat 22, so that the arc plate 32 is squeezed and deformed by the external force and the resistance of the baffle plate 29 during the upward movement, so that the arc plate 32 is deformed and approaches the plug plate 31. At the same time, the arc plate 32 will squeeze the spring 33, so that the spring 33 is squeezed and deformed under the support of the plug plate 31, so that the arc plate 32, the plug plate 31 and the spring 33 can be pulled out from the inner side of the groove 28, and then the spring 33 and the arc plate 32 will use the rebound force to reset under the support of the plug plate 31, so that the C plate 27 can drive the L plate 26 to separate from the inclined C plate 27, and drive the plug plate 31 and the arc plate 32 to separate from the fixed seat 22, so that the iron shell 17 can be removed, exposing the settings inside the iron shell 17, as shown in FIG. Figure 6 shown.

[0145] Then the staff needs to perform maintenance on the inner side of the iron shell 17 according to the actual situation, or pull the heat conducting frame 1 along the guide plate 21 under the support of the support seat 19, so that the heat conducting frame 1 uses the guide groove 20 to move along the guide plate 21 to the inner side of the iron shell 17. Figure 2 , so that the heat-conducting frame 1 can drive all the components arranged on its outside to move together under the action of external force. At the same time, the heat-conducting frame 1 will drive the electrode 2 during the movement, so that the electrode 2 moves in the direction close to the inclined surface of the inclined C block 24. As the heat-conducting frame 1 moves, the electrode 2 can use the inclined surface of the inclined C block 24 to push the inclined C block 24 under the action of external force, so that the inclined C block 24 can use its own inclination angle to drive the slider 38 to move along the through groove 23 and the guide rod 40 in the direction close to the positioning ring 42 under the action of external force. At the same time, the inclined C block 24 will drive the slider 38 to use external force to squeeze the spring 41, so that the spring 41 is squeezed and stored with energy under the support of the connecting block 39, thereby making room for the electrode 2 to move, so that the heat-conducting frame 1 and all the components arranged on its outside and the electrode 2 can be separated from the guide plate 21, removed from the support seat 19 for replacement, and then the staff can use the guide groove 20 to cover the new heat-conducting frame 1 and all the components arranged on its outside on the outside of the guide plate 21, and move along the guide groove 20 as shown in the figure. Figure 24 and 4. The second conductive sheet 34 is moved to the outside of the electrode 2 and contacts with the electrode 2 after the first conductive sheet 34 is reset. The second conductive sheet 34 is moved to the outside of the electrode 2 and contacts with the electrode 2 after the first conductive sheet 34 is reset. The conductive sheet 34 is moved to the outside of the electrode 2 and contacts with the electrode 2 after the first conductive sheet 34 is reset. The conductive sheet 34 is moved to the inside of the electrode 2 and contacts with the electrode 2 after the first conductive sheet 34 is reset. The conductive sheet 34 is moved to the outside of the electrode 2 and contacts with the electrode 2 after the first conductive sheet 34 is reset. The conductive sheet 34 is moved to the inside of the electrode 2 and contacts with the electrode 2 after the first conductive sheet 34 is reset. The conductive sheet 34 is moved to the outside of the electrode 2 and contacts with the electrode 2 after the first conductive sheet 34 is reset. The conductive sheet 34 is moved to the inside of the conductive sheet 35 ... Fig.10 As shown, at the same time, the C plate 27 will drive the L plate 26 to insert into the inner side of the socket 25, and the C plate 27 will drive the plug plate 31 to move together through the connecting plate 30, so that the plug plate 31 drives the arc plate 32 to align with the groove 28 and insert downward. At the same time, the plug plate 31 will use external force to drive the arc plate 32 to move together with the inner side of the groove 28. During this process, the arc plate 32 will contact the baffle plate 29 and be resisted and deformed by the baffle plate 29. At the same time, the arc plate 32 will squeeze the spring leaf 33 to deform under the support of the plug plate 31 during the deformation process, so that the arc plate 32 can pass through the baffle plate 29 and move to the inner side of the groove 28. After that, the arc plate 32 and the spring leaf 33 will rebound by the rebound force after moving into the groove 28, and then the baffle plate 29 will resist the arc plate 32 and the elastic force of the spring leaf 33, and the socket 25 and the L plate 26 will be used. The embedded action of the C plate 27 is connected with the inclined C block 24 and the fixing seat 22 At the same time, the C plate 27 will drive the second conductive sheet 36 to move downward during the movement, so that the second conductive sheet 36 fits with the conductive support 35. At the same time, the second conductive sheet 36 will drive the conductive block 37 to move together, so that the conductive block 37 moves to the inner side of the conductive support 35 and squeezes the wire placed on the inner side of the conductive support 35, so that the current of the wire can be transmitted to the first conductive sheet 34 and the second conductive sheet 36 through the conductive support 35 and the conductive block 37, and transmitted to the electrode 2 through the first conductive sheet 34 and the second conductive sheet 36, so that the planar transformer can be modularized and convenient for later maintenance and replacement. The positioning ring 42 can provide a resisting and positioning effect for the wire, and the connecting block 39 can provide support for the wire, and then the positioning ring 42, the conductive support 35 and the conductive block 37 are used to fix the wires and neatly arrange the connected wires, thereby improving the neatness and convenience of connecting the wires.

[0146] Working principle: the heat-conducting frame 1 provides a through channel and a supporting structure, the electrodes 2 symmetrically arranged on both sides are connected to the external circuit, and the coil 5 forms an electromagnetic coupling loop around the magnetic core 3. When the current is transmitted to the coil 5 through the electrode 2, the voltage conversion function is completed under the electromagnetic induction of the magnetic core 3 and the coil 5, realizing the power conversion of the bidirectional inverter charger.

[0147] The copper wire 7, copper plate 8, aluminum foil sleeve 9 and aluminum foil ring 10 utilize the high conductivity of copper and aluminum to reflect high-frequency electromagnetic waves and reduce penetration; the iron shell 17 further reflects and absorbs residual electromagnetic waves, and converts part of the energy into heat dissipation through the eddy current effect, thereby realizing multi-level electromagnetic shielding.

[0148] The multi-level shielding structure composed of copper plate 8, copper wire 7, aluminum foil and iron shell 17 significantly reduces the impact of high-frequency electromagnetic interference on the transformer and peripheral equipment through the dual mechanisms of reflection and eddy current dissipation, and improves the system stability and anti-interference ability.

[0149] The cooling fan 16 forms a forced airflow circulation through the air tube 14 and the protective frame 12, absorbs the heat from the air duct 18 and discharges it to the outside, significantly improving the heat dissipation efficiency. The passive heat dissipation of the heat conducting frame 1 and the active air cooling of the cooling fan 16 work together, combined with the airflow guide design of the nickel alloy protective frame 12 and the air duct 18, to achieve rapid heat dissipation, effectively avoid overheating of the coil 5 and the magnetic core 3, and extend the life of the equipment.

[0150] The movable iron shell 17 can drive the heat dissipation fan 16 and the C plate 27 to separate, and the overall disassembly can be completed by sliding the heat conduction frame 1 through the guide groove 20; the elastic contact design of the conductive support 35 and the conductive block 37 ensures the stable connection between the electrode 2 and the external circuit, and is convenient for rapid positioning and fixing during replacement or maintenance. The heat dissipation fan 16 and the wind tube 14 are sealed by the rubber ring 15 and the rubber pad 43 to avoid the intrusion of external electromagnetic interference, while ensuring the airtightness of the airflow channel and improving the heat dissipation efficiency.

[0151] The inclined C block 24, L plate 26, and spring 33 allow the iron shell 17, the heat sink fan 16, and the heat conducting frame 1 to be quickly disassembled, simplifying the maintenance process; the sliding guide design of the guide groove 20 and the guide plate 21 facilitates the replacement of the entire module, reducing maintenance costs and time.

[0152] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A planar transformer for a bidirectional inverter charger, comprising: A heat-conducting frame (1) and a plurality of electrodes (2) symmetrically fixed on both sides, two magnetic cores (3) are arranged on the outside of the heat-conducting frame (1), the outsides of the two magnetic cores (3) are connected and fixed with a support sleeve (4), the outside of the heat-conducting frame (1) is wound with a coil (5), and the coil (5) is located on the inside of the magnetic core (3), characterized in that it also includes: an aluminum foil sleeve (9), an iron shell (17) and a C plate (27); A shielding portion, arranged on the outside of the support sleeve (4) and the coil (5) to isolate interference; The shielding part comprises a spacer and an isolating member, the spacer is arranged on the outside of the support sleeve (4), and the isolating member is connected to the spacer and is located on the outside of the coil (5); A heat dissipation reducing portion, arranged outside the coil (5) and penetrating the shielding portion, to cool the heat dissipation coil (5) and the magnetic core (3); The heat sink comprises a heat sink and a connecting member, the heat sink is arranged through the isolating member, and the connecting member is connected to the heat sink; An electrical connector is arranged below the heat-conducting frame (1), is located outside the electrode (2), and is connected to the heat sink to facilitate quick replacement and maintenance; The electrical connector comprises a supporting member and a conductive member, the supporting member is connected to the heat-conducting frame (1) and to the isolating member, and the conductive member is connected to the supporting member; The spacers include: A plurality of support blocks (6) are provided, and the plurality of support blocks (6) are evenly fixed on the outside of the support sleeve (4); The copper wire (7) penetrates the support block (6) and is evenly fixed; A plurality of copper plates (8) are fixed on the support block (6) and are located outside the coil (5); The heat sink comprises: A protective frame (12) is fixed on the support sleeve (4) and is located outside the heat conducting frame (1), the magnetic core (3) and the coil (5); A through opening (13) is provided through the aluminum foil sleeve (9) and is adjacent to the plurality of copper plates (8); A heat dissipation fan (16) is provided through the side of the iron shell (17) away from the aluminum foil sleeve (9) and is located above the aluminum foil sleeve (9); The supporting member comprises: A support seat (19) is arranged below the heat conducting frame (1); The guide plate (21) penetrates the heat conducting frame (1) and is symmetrically arranged, and has beveled angles at both ends; A plurality of fixed seats (22) are symmetrically fixed on the support seat (19) and correspond to the positions of the electrodes (2); An inclined C block (24) is arranged on the fixed seat (22) for translation; A groove (28) is formed on the fixing seat (22) and is located below the C plate (27); The connecting part is arranged on a side of the iron shell (17) close to the support seat (19) and is connected to the support seat (19) and the inclined C block (24).

2. The planar transformer for a bidirectional inverter charger according to claim 1, characterized in that: The isolating element comprises: An aluminum foil sleeve (9) is sleeved on the outer sides of the plurality of copper plates (8); There are two aluminum foil rings (10), and the two aluminum foil rings (10) are respectively arranged on the inner side and the outer side of the plurality of copper plates (8) and are located below the aluminum foil sleeve (9); The auxiliary spacer component is arranged on the outside of the support block (6) and the aluminum foil sleeve (9), and is located on the outside of the copper plate (8).

3. The planar transformer for a bidirectional inverter charger according to claim 2, characterized in that: The auxiliary partition parts include: A plurality of connecting plates (11), wherein the plurality of connecting plates (11) are evenly and fixedly connected between the two aluminum foil rings (10); The plurality of connecting plates (11) are adjacent to the plurality of copper plates (8); The iron shell (17) is arranged on the outside of the support block (6) and the aluminum foil sleeve (9), and is located on the outside of the copper plate (8).

4. The planar transformer for a bidirectional inverter charger according to claim 3, characterized in that: The guide member comprises: An air cylinder (14) is disposed through the through opening (13) and is fixedly connected to the aluminum foil sleeve (9); A rubber ring (15) fixed on the air cylinder (14); A rubber pad (43) is fixed to a side of the heat dissipation fan (16) close to the air cylinder (14) and is in contact with the rubber ring (15); The air duct (18) has one end that passes through the protective frame (12) for fixed connection and is located outside the support sleeve (4) and the aluminum foil ring (10), and the other end that extends to the inside of the heat conducting frame (1) and is located outside the coil (5).

5. The planar transformer for a bidirectional inverter charger according to claim 4, characterized in that: The connecting parts include: A plurality of C plates (27) are provided, wherein the plurality of C plates (27) are fixed to a surface of the iron shell (17) close to the support seat (19) and adjacent to the inclined C block (24); A baffle (29) is symmetrically fixed on the inner side of the groove (28); An inserting plate (31) is inserted into the inner side of the groove (28) and connected to the C plate (27) via a connecting component; The arc plate (32) is symmetrically fixed on the outer side of the plug plate (31); The spring leaf (33) is fixed between the arc plate (32) and the inserting plate (31).

6. The planar transformer for a bidirectional inverter charger according to claim 5, characterized in that: The conductive member comprises: A first conductive sheet (34) fixed on the inner side of the inclined C block (24); A conductive support (35) fixed to one end of the first conductive sheet (34) and located below the C-plate (27); A second conductive sheet (36) is fixed on the inner side of the C plate (27), and one end of the second conductive sheet is in contact with the conductive support (35); A conductive block (37) is fixed to a surface of the second conductive sheet (36) close to the inclined C block (24) and extends to the inner side of the conductive support (35); The guide part is arranged on the fixing seat (22).

7. The planar transformer for a bidirectional inverter charger according to claim 6, characterized in that: The guiding parts include: A slider (38) is fixed to a side of the inclined C block (24) close to the fixed seat (22) and is translationally connected to the fixed seat (22); A connecting block (39) is fixed to a side of the fixing seat (22) away from the heat conducting frame (1); A guide rod (40) is fixed on the inner side of the connecting block (39) and is arranged to penetrate the sliding block (38); A spring (41) is sleeved on the outside of the guide rod (40), one end of which is connected to the slider (38) and the other end of which is connected to the connecting block (39); The positioning ring (42) is fixed to one end of the connecting block (39) away from the supporting seat (19).

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