Inductor and transformer combination

Abstract

The application discloses a kind of inductance and transformer combination device, it is related to electronic component technical field.The inductance and transformer combination device includes shell, and the main shell inner wall of shell is provided with partition plate, and the main shell is divided into first space and second space;Inductor is set to the inside of first space, and glass fibre plate is set between inductor and partition plate, and it is used to insulate between inductor and partition plate;Transformer is set to the inside of second space, and the support of transformer is opened with insulation slot, and it is used to make support form open circuit on it, and the support leg of support is fixedly connected with bottom plate.The heat conduction route of the application can only conduct heat, and cannot conduct electricity, and it is not necessary to set more heat dissipation structure and heat dissipation space in order to increase heat dissipation effect, so that the inductance and transformer combination device improves the heat dissipation effect of inductance and transformer combination device without increasing volume.

Description

Technical Field

[0001] This invention relates to the field of electronic components technology, and in particular to a combination device of inductor and transformer. Background Technology

[0002] A transformer is a device that uses the principle of electromagnetic induction to change alternating current voltage. Its main components are the primary coil, the secondary coil, and the iron core (magnetic core). In electrical equipment and wireless circuits, it is commonly used for voltage step-up / step-down, impedance matching, and safety isolation.

[0003] The main functions of inductors in transformers are filtering and energy storage, thereby making the current purer.

[0004] Currently, in inductor and transformer combination devices, the overall power is relatively large, and the heat generated is also relatively large. However, if the heat dissipation effect of the combination device is to be improved, the volume of the combination device needs to be increased to set more heat dissipation structures and heat dissipation space. The higher the power, the larger the volume required. However, this will lead to a significant reduction in the space utilization rate of the transformer. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the technical problem solved by this invention is: how to improve the heat dissipation effect of the inductor and transformer combination device without increasing its size.

[0006] To achieve the above objectives, the present invention provides an inductor and transformer combination device, comprising:

[0007] The outer shell includes a main shell and a base plate, both of which are made of copper. The inner wall of the main shell is provided with a partition plate, which is used to divide the main shell into a first space and a second space. The first space is located on top of the second space.

[0008] An inductor is disposed inside the first space and located on the top surface of the partition plate. A fiberglass board is disposed between the inductor and the partition plate to insulate the inductor from the partition plate.

[0009] The transformer, which is located inside the second space, includes a support, a magnetic core and a winding assembly. The magnetic core is located inside the support, and the winding assembly is wound around the outside of the support. The support has an insulating groove to divide it into left and right parts. The support legs of the support are fixedly connected to the base plate.

[0010] The adhesive layer is disposed between the inductor and the main housing, and is located on the periphery of the winding assembly.

[0011] By adopting the above technical solution, the heat generated by the inductor can be transferred to the main housing through the partition plate at its bottom, then to the base plate, and finally mounted on the water-cooling plate through the base plate, thus achieving the function of heat dissipation for the inductor. The heat generated by the transformer can be directly transferred to the base plate through the bracket, thus achieving the function of heat dissipation for the transformer. Moreover, the bracket is located inside the transformer, further improving the heat dissipation effect. The partition plate, main housing, base plate, and bracket can all be made of materials with good thermal conductivity, such as copper. Because copper has good thermal conductivity, the heat dissipation effect of the above heat conduction route is better. At the same time, the inductor, transformer, and heat conduction structure are insulated by the designed fiberglass board and the injection layer, and the bracket has insulating grooves to prevent the formation of current loops on the bracket. Therefore, the above heat conduction route can only conduct heat and not conduct electricity, and there is no need to set up more heat dissipation structures and heat dissipation space to increase the heat dissipation effect. Therefore, this inductor and transformer combination device improves the heat dissipation effect of the inductor and transformer combination device without increasing the size.

[0012] In one embodiment, the insulating groove is formed on the top surface of the bracket, and an epoxy block is embedded inside the insulating groove.

[0013] By adopting the above technical solution, the gaps in the insulation grooves are filled with epoxy blocks, thus avoiding the problem that when the windings are wound on the support, the windings will be recessed into the insulation grooves, which would affect the actual power of the transformer.

[0014] In one embodiment, the inductor includes a magnetic block, a pad, a first magnetic post, a second magnetic post, a first winding, and a second winding. The first magnetic post and the second magnetic post are arranged parallel to each other on the top of a partition plate, and pads are fixed to both ends of the two posts. A magnetic block is fixed to the other side of the pads. The first winding is wound on the first magnetic post, and the second winding is wound on the second magnetic post.

[0015] By adopting the above technical solution, two sets of inductors are connected in parallel to improve the output current and power of the inductors.

[0016] In one embodiment, the first winding and the second winding are wound in opposite directions to form a mirror structure. The output components of the first magnetic post and the second magnetic post are connected to the same inductor output board. The input components of the first magnetic post and the second magnetic post are connected to the same inductor input board. The bottom surface of the inductor input board is connected to the positive output board of the transformer, which is used to guide the current generated by the transformer into the inductor.

[0017] By adopting the above technical solution, the windings of the two sets of inductors are designed to be opposite, so that the phases of the two sets of inductors are at the same end, and the output directions of the current are the same. Thus, the two sets of inductors can output current through the same inductor output board, thereby realizing the parallel connection of the two sets of inductors. This design method eliminates the need to rely on a connection structure to connect the two sets of inductors in parallel. One end of the two sets of inductors in parallel outputs current through the inductor output board, and the other end is provided with an inductor input board to input the current into the inductor. The bottom surface of the inductor input board is connected to the positive output board of the transformer, so that the current generated by the transformer can be input into the inductor. This not only plays a filtering role in the circuit, filtering out noise in the current and making the DC current purer and more stable, but also allows for the miniaturization of the integrated structure through the design of the inductor input board and the positive output board.

[0018] In one embodiment, the output element is disposed on the top surface of the inductor output board, with a portion of the inductor output board laid on the top surface of the fiberglass board and another portion located outside the main housing.

[0019] By adopting the above technical solution, the first function of the inductor output board is to output the pure current generated by the inductor, and the second function is to transfer the heat generated by the inductor to the fiberglass board through the output component by connecting the output component to the fiberglass board, and then to the base plate through the fiberglass board, the partition plate, the main housing, and finally to the base plate, thereby further improving the heat dissipation effect of the device.

[0020] In one embodiment, a partition is provided between the first winding and the second winding, and a high-temperature tape is fitted on the partition, with the side of the partition fixed to the dividing plate.

[0021] By adopting the above technical solution, the heat dissipation area of ​​the inductor is increased, and the sides of the first and second windings can be transferred to the separator plate through the separator plate, and the separator plate and the windings are insulated by high temperature tape.

[0022] In one embodiment, the winding assembly includes a first primary winding, a second primary winding, a first secondary winding, and a second secondary winding. The bracket is wound with the first primary winding, the first secondary winding, the second secondary winding, and the second primary winding in sequence from the inside to the outside. One end of the first secondary winding and the second secondary winding are respectively provided with a negative output plate.

[0023] By adopting the above technical solution, this winding method can optimize the winding layout, effectively reduce the leakage inductance and interlayer distributed capacitance of the transformer, thereby reducing electromagnetic interference and voltage and current stress, improving the performance and reliability of the switching power supply, and allowing for the design of appropriate winding methods according to the specific requirements and output characteristics of the power supply.

[0024] In one embodiment, an alumina ceramic component is sleeved around the portion of the negative electrode output plate located in the main housing, and the end of the alumina ceramic component away from the negative electrode output plate is fixedly connected to the base plate.

[0025] By adopting the above technical solution, one end of the alumina ceramic component is designed in the shape of a negative output plate and is wrapped around the negative output plate to maximize the contact area between the alumina ceramic component and the negative output plate. The other end of the alumina ceramic component is fixedly connected to the base plate. The alumina ceramic component has good thermal conductivity and insulation effect, so the heat generated by the transformer can be further transferred to the base plate through the alumina ceramic component, thereby further improving the heat dissipation effect of the device.

[0026] In one embodiment, a first epoxy plate and a second epoxy plate are respectively provided at both ends of the main housing. The first epoxy plate, which is away from the negative output plate, has a through hole for the input line of the transformer to pass through. The second epoxy plate has several grooves for the negative output plate to pass through to the outside of the epoxy plate.

[0027] By adopting the above technical solution, inductors and transformers can be combined into a closed space without affecting the current input and output terminals.

[0028] In one embodiment, the main housing includes an upper housing and a lower housing, with a partition plate between the upper housing and the lower housing. The upper housing, the lower housing, and the partition plate are fixedly connected by the same set of bolt assemblies. A number of bolt holes are provided on the bottom plate for fixing the bottom plate to the water cooling plate.

[0029] By adopting the above technical solution, it is easy to separate the upper shell, lower shell and partition plate, thereby facilitating the installation and disassembly of inductors and transformers, as well as the maintenance and testing of inductors and transformers; it is also easy to install the inductor and transformer combination device on the water cooling plate to achieve the heat dissipation effect, without affecting the use of the inductor and transformer combination device.

[0030] In summary, the present invention has at least one of the following beneficial technical effects:

[0031] 1. Through the structural design of the outer casing and its internal structure, circuits can be designed for inductors and transformers that conduct heat only through copper and do not conduct electricity, thereby improving the heat dissipation effect of the inductor and transformer combination device without increasing the size.

[0032] 2. By using two sets of inductors or two sets of transformers with opposite winding directions, a mirror structure can be achieved. The current output and input terminals can be installed in this structure, thereby reducing the integrated size of the inductors and transformers. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the inductor and transformer combination device according to an embodiment of the present invention;

[0034] Figure 2 This is a schematic diagram of the structure of the bracket according to an embodiment of the present invention;

[0035] Figure 3 This is a schematic diagram of the outer shell of an embodiment of the present invention;

[0036] Figure 4 This is an exploded view of the inductor according to an embodiment of the present invention;

[0037] Figure 5 This is a rear view of the inductor and transformer combination device according to an embodiment of the present invention;

[0038] Figure 6 for Figure 1 Schematic diagram of the structure for installing the second epoxy board;

[0039] Figure 7 for Figure 5 A schematic diagram of the structure for installing the first epoxy board.

[0040] In the diagram: 1-Outer shell, 101-Main shell, 1011-Upper shell, 1012-Lower shell, 102-Base plate, 103-First epoxy board, 104-Second epoxy board, 105-Separator plate, 106-Fiberglass board, 107-Separator plate, 108-Bolt assembly, 2-Inductor, 201-Inductor output board, 202-Inductor input board, 203-Magnetic block, 204-Pad plate, 205-First magnetic column, 206-Second magnetic column, 207-First winding, 208-Second winding, 209-Output component, 2010-Input component, 3-Transformer, 301-Negative output board, 302-Input line, 303-Positive output board, 304-Bracket, 305-Epoxy block, 306-Support leg. Detailed Implementation

[0041] The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0042] The inductor and transformer combination device in the embodiments of the present invention, see [link to relevant documentation]. Figure 1-3As shown, the inductor and transformer assembly includes a housing 1, which comprises a main housing 101 and a base plate 102, both made of copper. A partition plate 105 is provided on the inner wall of the main housing 101, dividing the main housing 101 into a first space and a second space arranged vertically. An inductor 2 is disposed inside the first space, located on the top surface of the partition plate 105. A fiberglass board 106 is disposed between the inductor 2 and the partition plate 105, insulating the inductor 2 from the partition plate 105. The second space... A transformer 3 is provided, which includes a bracket 304, a magnetic core, and a winding assembly. The magnetic core is located inside the bracket 304, and the winding assembly is wound around the outside of the bracket 304. The bracket 304 has an insulating groove, which is used to divide the bracket 304 into left and right parts so that a current loop cannot be formed on the bracket 304. The support leg 306 of the bracket 304 is fixedly connected to the base plate 102. An adhesive layer is provided between the inductor 2 and the main housing 101. An adhesive layer is also provided between the winding assembly and the partition plate 105, between the winding assembly and the main housing 101, and between the winding assembly and the base plate 102.

[0043] Therefore, the heat generated by the inductor 2 of the present invention can be transferred to the main housing 101 through the partition plate 105 at its bottom, and then transferred from the main housing 101 to the base plate 102, and then mounted on the water cooling plate through the base plate 102 to achieve the heat dissipation of the inductor 2. The heat generated by the transformer 3 can be directly transferred to the base plate 102 through the bracket 304 to achieve the heat dissipation of the transformer 3. Since copper has good thermal conductivity, the heat dissipation effect of the above heat conduction route is better, and the bracket 304 is located inside the transformer 3, which further improves the heat dissipation effect.

[0044] Meanwhile, a fiberglass board 106 is provided between the inductor 2 and the partition plate 105, and an adhesive layer is provided between the inductor 2 and the main housing 101. Adhesive layers are also provided between the winding assembly and the partition plate 105, the winding assembly and the main housing 101, and the winding assembly and the base plate 102. Furthermore, the bracket 304 has an insulating groove, which creates an open circuit on the bracket 304. Therefore, the above-mentioned heat conduction path can only conduct heat and not conduct electricity. It is not necessary to set up more heat dissipation structures and heat dissipation space to increase the heat dissipation effect. Thus, the inductor and transformer combination device improves the heat dissipation effect of the inductor and transformer combination device without increasing the volume.

[0045] Preferred, see Figure 2 As shown, an insulating groove is formed on the top surface of the bracket 304, and an epoxy block 305 is embedded inside the insulating groove. The shape of the epoxy block 305 can be changed according to the shape of the insulating groove, but it must meet the requirement that no current loop can be formed on the bracket 304.

[0046] Specifically, the epoxy block 305 fills the gaps in the insulation groove, thus avoiding the problem that when the winding is wound on the support 304, the winding will be recessed into the insulation groove, which would affect the actual power of the transformer 3.

[0047] Preferred, see Figure 4 As shown, the inductor 2 includes a magnetic block 203, a pad 204, a first magnetic post 205, a second magnetic post 206, a first winding 207, and a second winding 208. The first magnetic post 205 and the second magnetic post 206 are arranged parallel to each other on the top of the partition plate 105. The pad 204 is fixed at both ends of the two magnetic posts. The magnetic block 203 is fixed on the other side of the pad 204. The first winding 207 is wound on the first magnetic post 205, and the second winding 208 is wound on the second magnetic post 206.

[0048] Specifically, the inductor 2 is designed as two sets. First, the first winding 207 is wound onto the first magnetic post 205, and the second winding 208 is wound onto the second magnetic post 206. Then, the first magnetic post 205 and the second magnetic post 206 are placed in parallel. The two ends of the magnetic post are fixedly connected to the pad 204 with glue. Finally, the outer side of the pad 204 is fixedly connected to the magnetic block 203 with glue. The two sets of inductors 2 are connected in parallel to improve the output current and power of the inductor 2.

[0049] Further, see Figure 1 , 4 As shown in Figure 5, the winding directions of the first winding 207 and the second winding 208 are opposite, forming a mirror structure. The output components 209 of the first magnetic post 205 and the second magnetic post 206 are connected to the same inductor output board 201. The input components 2010 of the first magnetic post 205 and the second magnetic post 206 are connected to the same inductor input board 202. The bottom surface of the inductor input board 202 is connected to the positive output board 303 of the transformer 3, which is used to guide the current generated by the transformer 3 into the inductor 2.

[0050] Specifically, by designing the windings of the two sets of inductors 2 to be opposite, the phases of the two sets of inductors 2 are at the same end, and the output directions of the current are the same. Thus, the two sets of inductors 2 can output current through the same inductor output board 201, thereby realizing the parallel connection of the two sets of inductors 2. This design method eliminates the need to rely on a connection structure to connect the two sets of inductors 2 in parallel, thereby achieving the miniaturization of the integrated structure. One end of the two sets of inductors 2 outputs current through the inductor output board 201, and the other end is provided with an inductor input board 202 to input the current into the inductor 2. The bottom surface of the inductor input board 202 is connected to the positive output board 303 of the transformer 3, so that the current generated by the transformer 3 can be input into the inductor 2. This not only plays a filtering role in the circuit, filtering out noise in the current and making the DC current purer and more stable, but also the design of the inductor input board 202 and the positive output board 303 can achieve the miniaturization of the integrated structure.

[0051] Further, see Figure 1 , 3 As shown, the output component 209 is disposed on the top surface of the inductor output board 201. Part of the inductor output board 201 is laid on the top surface of the fiberglass board 106, and the other part is located outside the main housing 101.

[0052] Specifically, the inductor output plate 201 extends to the outside of the main housing 101, serving to output the pure current generated by the inductor 2; the inductor output plate 201 connects the output component 209 and the fiberglass board 106, so that the heat generated by the inductor 2 is transferred to the fiberglass board 106 through the output component 209, and then through the fiberglass board 106, the partition plate 105, the main housing 101, and finally to the base plate 102, thereby further improving the heat dissipation effect of the device.

[0053] Preferred, see Figure 3 , 4 As shown, a partition 107 is provided between the first winding 207 and the second winding 208. High-temperature tape is sleeved on the partition 107. The side of the partition 107 is fixed to the partition plate 105. The high-temperature tape may or may not contact the first winding 207 or the second winding 208.

[0054] Specifically, the sides of the first winding 207 and the second winding 208 can be transferred to the partition plate 105 through the partition plate 107, and the partition plate 107 is insulated from the windings by high-temperature tape. Thus, the partition plate 107 can transfer the heat inside the inductor 2 to the partition plate 105 through the partition plate 107, thereby increasing the heat dissipation area of ​​the inductor 2 and further improving the heat dissipation effect.

[0055] Preferably, the winding assembly includes a first primary winding, a second primary winding, a first secondary winding, and a second secondary winding. The bracket 304 is wound with the first primary winding, the first secondary winding, the second secondary winding, and the second primary winding in sequence from the inside to the outside. A negative output plate 301 is respectively provided at one end of the first secondary winding and the second secondary winding.

[0056] Specifically, the bracket 304 is wound with a first primary winding, a second primary winding, a third primary winding, and a fourth primary winding in sequence from the inside out. One end of the first primary winding and the second primary winding are respectively provided with a negative output plate 301. The negative output plate 301 is used to output the converted current to power other devices. This winding method can optimize the winding layout, effectively reduce the leakage inductance and interlayer distributed capacitance of the transformer 3, thereby reducing electromagnetic interference and voltage and current stress, improving the performance and reliability of the switching power supply, and allowing for the design of a suitable winding method according to the specific requirements and output characteristics of the power supply.

[0057] Furthermore, both the bracket 304 and the winding integration are in two sets, with the winding directions of the two sets of winding integration being opposite, forming a mirror structure, and the negative output plates 301 of the two sets are located at the same end.

[0058] Furthermore, the negative output plate 301 is surrounded by an alumina ceramic component on the portion of the main housing 101, and the end of the alumina ceramic component away from the negative output plate 301 is fixedly connected to the base plate 102.

[0059] Specifically, one end of the alumina ceramic component is designed in the shape of the negative output plate 301 and is wrapped around the negative output plate 301 to maximize the contact area between the alumina ceramic component and the negative output plate 301. The other end of the alumina ceramic component is fixedly connected to the base plate 102. The alumina ceramic component has good thermal conductivity and insulation effect, so the heat generated by the transformer 3 can be further transferred to the base plate 102 through the alumina ceramic component, thereby further improving the heat dissipation effect of the device.

[0060] Specifically, by designing the windings of the two sets of transformers 3 to be opposite, the phases of the two sets of transformers 3 are at the same end, and the output directions of the current are the same. Thus, the two sets of transformers 3 can output current through the same negative output board 301, thereby realizing the parallel connection of the two sets of transformers 3. This design method eliminates the need to rely on a connection structure to connect the two sets of transformers 3 in parallel, thereby reducing the size of the integrated structure. Furthermore, the other end of the two sets of transformers 3 can input current to the inductor 2 through the same positive output board 303, further reducing the size of the integrated structure.

[0061] Preferred, see Figure 6 , 7As shown, the main housing 101 has a first epoxy plate 103 and a second epoxy plate 104 at its two ends respectively. The first epoxy plate 103, which is away from the negative output plate 301, has a wire hole, through which the input line 302 of the transformer 3 passes. The second epoxy plate has several grooves for the negative output plate 301 to pass through to the outside of the epoxy plate.

[0062] Specifically, the two ends of the opening of the main housing 101 are covered by the first epoxy plate 103 and the second epoxy plate 104 respectively, so that the housing 1 forms a sealed structure, thereby combining the inductor and transformer 3 in a closed space. Since the inductor and transformer 3 both need to have current input and output components, and these components need to be connected to the outside, a wire hole is provided on the first epoxy plate 103 and a groove is provided on the second epoxy plate, so as not to affect the normal use of the current input and output terminals.

[0063] Preferred, see Figure 3 As shown, the main housing 101 includes an upper housing 1011 and a lower housing 1012. A partition plate 105 is provided between the upper housing 1011 and the lower housing 1012. The upper housing 1011, the lower housing 1012 and the partition plate 105 are fixedly connected by the same set of bolt assemblies 108. A number of bolt holes are provided on the bottom plate 102 for fixing the bottom plate 102 to the water cooling plate.

[0064] Specifically, the main housing 101 is divided into an upper housing 1011 and a lower housing 1012, which facilitates the disassembly of the upper housing 1011, the lower housing 1012 and the partition plate 105, thereby facilitating the installation and disassembly of the inductor 2 and the transformer 3, as well as the maintenance and testing of the inductor 2 and the transformer 3; it also facilitates the installation of the inductor and transformer combination device on the water-cooled plate to achieve heat dissipation, without affecting the use of the inductor and transformer combination device.

[0065] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A combination device of inductor and transformer, characterized in that, It includes: The outer shell (1) includes a main shell (101) and a bottom plate (102), both of which are made of copper. The inner wall of the main shell (101) is provided with a partition plate (105), which is used to divide the main shell (101) into a first space and a second space, with the first space located on top of the second space. The main housing (101) includes an upper housing (1011) and a lower housing (1012). A partition plate (105) is provided between the upper housing (1011) and the lower housing (1012). The upper housing (1011), the lower housing (1012) and the partition plate (105) are fixedly connected by the same set of bolt assemblies (108). A number of bolt holes are provided on the bottom plate (102) for fixing the bottom plate (102) to the water cooling plate. An inductor (2) is disposed inside the first space and located on the top surface of the partition plate (105). A fiberglass plate (106) is disposed between the inductor (2) and the partition plate (105) to insulate the inductor (2) from the partition plate (105). The transformer (3) is located inside the second space and includes a support (304), a magnetic core and a winding assembly. The magnetic core is located inside the support (304), and the winding assembly is wound around the outside of the support (304). The support (304) has an insulating groove for dividing the support (304) into left and right parts. The support leg (306) of the support (304) is fixedly connected to the base plate (102). The adhesive layer is disposed between the inductor (2) and the main housing (101), and is disposed on the periphery of the winding integration; The insulating groove is formed on the top surface of the bracket (304), and an epoxy block (305) is embedded inside the insulating groove.

2. The inductor and transformer combination device as described in claim 1, characterized in that: The inductor (2) includes a magnetic block (203), a pad (204), a first magnetic column (205), a second magnetic column (206), a first winding (207), and a second winding (208). The first magnetic column (205) and the second magnetic column (206) are placed parallel to each other on the top of the partition plate (105). The pad (204) is fixed at both ends of the two magnetic columns. The magnetic block (203) is fixed on the other side of the pad (204). The first winding (207) is wound on the first magnetic column (205), and the second winding (208) is wound on the second magnetic column (206).

3. The inductor and transformer combination device as described in claim 2, characterized in that: The first winding (207) and the second winding (208) have opposite winding directions, forming a mirror structure. The output components (209) of the first winding and the second winding are connected to the same inductor output board (201). The input components (2010) of the first winding and the second winding are connected to the same inductor input board (202). The bottom surface of the inductor input board (202) is connected to the positive output board (303) of the transformer (3), which is used to guide the current generated by the transformer (3) into the inductor (2).

4. The inductor and transformer combination device as described in claim 3, characterized in that: The output component (209) is disposed on the top surface of the inductor output board (201), part of which is laid on the top surface of the fiberglass board (106), and the other part is located outside the main housing (101).

5. The inductor and transformer combination device as described in claim 2, characterized in that: A partition (107) is provided between the first winding (207) and the second winding (208). High-temperature tape is fitted on the partition (107), and the side of the partition (107) is fixed to the partition plate (105).

6. The inductor and transformer combination device as described in claim 1, characterized in that: The winding assembly includes a first primary winding, a second primary winding, a first stage winding, and a second stage winding. The bracket (304) is wound with the first primary winding, the first stage winding, the second stage winding, and the second primary winding in sequence from the inside to the outside. A negative output plate (301) is provided at one end of the first stage winding and the second stage winding, respectively.

7. The inductor and transformer combination device as described in claim 6, characterized in that: The negative electrode output plate (301) is surrounded by an alumina ceramic component on the part of the main housing (101), and the end of the alumina ceramic component away from the negative electrode output plate (301) is fixedly connected to the base plate (102).

8. The inductor and transformer combination device as described in claim 6, characterized in that: The main housing (101) is provided with a first epoxy plate (103) and a second epoxy plate (104) at both ends. The first epoxy plate (103), which is far away from the negative output plate (301), has a wire hole. The input line (302) of the transformer (3) passes through the wire hole. The second epoxy plate has several grooves for the negative output plate (301) to pass through to the outside of the epoxy plate.

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