Transformer and inductor integrated component, inverter and electrical equipment

Abstract

The utility model discloses a transformer and inductor integrated component, inverter and electrical equipment, the transformer and inductor integrated component comprises: a magnetic core housing, the magnetic core housing comprises a first plate body and a second plate body which are oppositely distributed along a first direction, and an inner side column, a middle wrapping post and an outer side column are connected between the first plate body and the second plate body; one of the primary winding and the secondary winding is wound outside the middle winding post, and the other one of the primary winding and the secondary winding is wound outside the inner side post; and the current transformer is used for detecting the current of one of the primary winding and the secondary winding. According to the transformer and inductor integrated component, the voltage transformation function, the resonance inductance function and the current detection function can be achieved, the overall size of the transformer and inductor integrated component can be reduced, arrangement of the transformer and inductor integrated component is facilitated, the arrangement cost can be reduced, the efficiency of the voltage transformation function can be improved, and the size of the transformer and inductor integrated component can be reduced. EMC radiation of a transformer and inductor integrated component can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of inverter technology, and in particular to an integrated transformer and inductor component, an inverter having the integrated transformer and inductor component, and an electrical device having the integrated transformer and inductor component or the inverter. Background Technology

[0002] Existing micro photovoltaic inverters separate the transformer, resonant inductor, and current transformer into three independent components. This results in a larger footprint, increased installation costs, and a larger loop area, which can lead to EMC (Electromagnetic Compatibility) radiation issues. There is room for improvement. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a transformer and inductor integrated component, which can realize the transformation function, resonant inductance function, and current detection function of the transformer and inductor integrated component. Furthermore, it can reduce the overall size of the transformer and inductor integrated component, facilitating its installation and reducing installation costs, improving the efficiency of the transformation function, and reducing the coupling between the primary and secondary windings, effectively reducing the EMC radiation of the transformer and inductor integrated component.

[0004] The transformer and inductor integrated component according to an embodiment of the present invention includes: a magnetic core housing, the magnetic core housing including a first plate and a second plate distributed opposite to each other along a first direction, wherein an inner post, a middle winding post and an outer post are connected between the first plate and the second plate, the middle winding post being arranged around the inner post and the outer post being arranged around the middle winding post; a primary winding and a secondary winding, one of the primary winding and the secondary winding being wound outside the middle winding post, and the other of the primary winding and the secondary winding being wound outside the inner post; and a current transformer, the current transformer being installed in the magnetic core housing and used to detect the current of one of the primary winding and the secondary winding.

[0005] According to the embodiment of this utility model, the transformer and inductor integrated component can realize the transformation function, resonant inductance function, and current detection function of the transformer and inductor integrated component by setting a primary winding, a secondary winding, and a current transformer. Moreover, the transformation function and the resonant inductance function can share one of the windings, which can reduce the overall volume of the transformer and inductor integrated component, facilitate the setting of the transformer and inductor integrated component, reduce the setting cost, improve the efficiency of the transformation function, and separate the primary winding and secondary winding through the intermediate winding post, which can reduce the coupling between the primary winding and secondary winding and effectively reduce the EMC radiation of the transformer and inductor integrated component.

[0006] According to some embodiments of the present invention, the transformer and inductor integrated component have both the primary winding and the secondary winding having wire ends introduced or led out from the magnetic core housing, and the current transformer is sleeved outside the wire end of one of the primary winding and the secondary winding.

[0007] According to some embodiments of the present invention, in the transformer and inductor integrated component, the outer column is provided with a first outlet, the wire end of one of the primary winding and the secondary winding is adapted to be introduced or led out from the first outlet, and at least a portion of the current transformer is located inside the first outlet.

[0008] According to some embodiments of the present invention, in the transformer and inductor integrated component, one of the primary winding and the secondary winding has an input terminal and an output terminal, both of which are passed through the first outlet, and the current transformer is sleeved outside one of the input terminal and the output terminal.

[0009] According to some embodiments of the present invention, the transformer and inductor integrated component has a second outlet on the outer column and a through-hole on the middle winding column. The second outlet is directly opposite to and connected to the through-hole. The wire end of the other of the primary winding and the secondary winding is introduced or led out from the through-hole and the second outlet.

[0010] According to some embodiments of the present invention, in the transformer and inductor integrated component, the intermediate winding post is formed with an intermediate air gap that is disconnected in the first direction.

[0011] According to some embodiments of the present invention, in the transformer and inductor integrated component, a first winding annular groove is defined between the inner post and the intermediate winding post, and a second winding annular groove is defined between the intermediate winding post and the outer post. The first winding annular groove and the second winding annular groove are connected through the intermediate air gap. One of the primary winding and the secondary winding is wound in the second winding annular groove, and the other of the primary winding and the secondary winding is wound in the first winding annular groove.

[0012] The transformer and inductor integrated component according to some embodiments of the present invention further includes a first frame, one of the primary winding and the secondary winding is mounted on the first frame, the first frame includes a support portion and a first connection portion, one of the primary winding and the secondary winding is supported on the support portion, and the wire end of one of the primary winding and the secondary winding is connected to the first connection portion.

[0013] The transformer and inductor integrated component according to some embodiments of the present invention further includes a second frame, wherein the primary winding and the other of the secondary winding are adapted to be installed in the second frame, the second frame includes a winding portion and a connecting portion, the winding portion forming an annular winding slot; the primary winding and the other of the secondary winding are wound in the annular winding slot, and the wire ends of the primary winding and the other of the secondary winding are connected to the second connecting portion.

[0014] This utility model also proposes an inverter.

[0015] The inverter according to the present invention is provided with a transformer and inductor integrated component as described in any of the above embodiments.

[0016] This utility model also proposes an electrical device.

[0017] The electrical equipment according to the present utility model is provided with a transformer and inductor integrated component as described in any of the above embodiments or an inverter as described in the above embodiments.

[0018] The electrical equipment, the inverter, and the aforementioned transformer and inductor integrated components have the same advantages over the prior art, and will not be elaborated here.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of the structure of the transformer and inductor integrated component according to an embodiment of the present utility model;

[0022] Figure 2 This is an exploded view of the transformer and inductor integrated component according to an embodiment of the present utility model;

[0023] Figure 3This is a schematic diagram of the structure of the magnetic core housing of the transformer and inductor integrated component according to an embodiment of the present invention. Figure 1 ;

[0024] Figure 4 This is a schematic diagram of the structure of the magnetic core housing of the transformer and inductor integrated component according to an embodiment of the present invention. Figure 2 ;

[0025] Figure 5 This is a schematic diagram of the structure of the magnetic core housing of the transformer and inductor integrated component according to an embodiment of the present invention. Figure 3 ;

[0026] Figure 6 This is a schematic diagram of the structure of the magnetic core housing of the transformer and inductor integrated component according to an embodiment of the present invention. Figure 4 ;

[0027] Figure 7 This is a schematic diagram of the structure of the magnetic core housing of the transformer and inductor integrated component according to an embodiment of the present invention. Figure 5 ;

[0028] Figure 8 This is a schematic diagram of the magnetic circuit of the transformer and inductor integrated component according to an embodiment of the present utility model;

[0029] Figure 9 This is an equivalent circuit diagram of the transformer and inductor integrated components according to an embodiment of the present invention.

[0030] Figure label:

[0031] Transformer and inductor integrated component 100,

[0032] The magnetic core housing 1, first plate 11, second plate 12, inner post 13, intermediate winding post 14, through-hole 141, intermediate air gap 142, outer post 15, first outlet 151, second outlet 152, first winding annular groove 16, and second winding annular groove 17.

[0033] Primary winding 2, secondary winding 3, current transformer 4,

[0034] First frame 5, support part 51, first wiring part 52.

[0035] The second frame 6, the winding part 61, the annular winding slot 611, and the second connection part 62. Detailed Implementation

[0036] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0037] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] The following is for reference. Figures 1-9 The transformer and inductor integrated component 100 according to an embodiment of the present invention can realize the transformation function, resonant inductance function and current detection function of the transformer and inductor integrated component 100 by setting a primary winding 2, a secondary winding 3 and a current transformer 4. The transformation function and the resonant inductance function can share one of the windings, which can reduce the overall volume of the transformer and inductor integrated component 100, facilitate the setting of the transformer and inductor integrated component 100, reduce the setting cost, and improve the efficiency of the transformation function. Furthermore, by separating the primary winding 2 and the secondary winding 3 through the intermediate winding post 14, the coupling between the primary winding 2 and the secondary winding 3 can be reduced, effectively reducing the EMC radiation of the transformer and inductor integrated component 100.

[0040] like Figures 1-9As shown, a transformer and inductor integrated component 100 according to an embodiment of the present invention includes: a magnetic core housing 1, a primary winding 2, a secondary winding 3, and a current transformer 4.

[0041] The magnetic core housing 1 includes a first plate 11 and a second plate 12 that are relatively distributed along a first direction. An inner post 13, a middle winding post 14, and an outer post 15 that are spaced apart are connected between the first plate 11 and the second plate 12. The middle winding post 14 is arranged around the inner post 13, and the outer post 15 is arranged around the middle winding post 14. One of the primary winding 2 and the secondary winding 3 is wound outside the middle winding post 14, and the other of the primary winding 2 and the secondary winding 3 is wound outside the inner post 13. A current transformer 4 is installed on the magnetic core housing 1 and is used to detect the current of one of the primary winding 2 and the secondary winding 3.

[0042] Specifically, the magnetic core housing 1 provides mounting positions for the primary winding 2 and the secondary winding 3. The magnetic core housing 1 includes a first plate 11 and a second plate 12, with the first plate 11 and the second plate 12 facing each other along a first direction, which is the axial direction of the magnetic core housing 1. This allows the first plate 11 and the second plate 12 to simultaneously protect the primary winding 2 and the secondary winding 3 on both sides of the first direction. In addition, the inner post 13, the intermediate winding post 14, and the outer post 15 are arranged sequentially from the inside to the outside along the radial direction of the magnetic core housing 1. The inner post 13 and the intermediate winding post 14 can be used to realize winding. The inner post 13 and the outer post 15 are respectively arranged inside and outside the intermediate winding post 14, which can be used to jointly support the first plate 11 and the second plate 12 to ensure that there is enough space between the first plate 11 and the second plate 12 to accommodate the primary winding 2 and the secondary winding 3. The outer post 15 can also serve as a shield to shield the magnetic field generated by the primary winding 2 and the secondary winding 3.

[0043] It should be noted that connecting the first plate 11 and the second plate 12 allows the magnetic core housing 1 to shield the internal magnetic circuit, enclosing the leakage magnetic flux inside the magnetic core housing 1, and, as... Figures 3-6 As shown, the magnetic core housing 1 can be constructed as a circle or a square. The shape of the magnetic core housing 1 can be flexibly set according to specific needs and space size. For ease of description, the description below will take the upper part as the first plate 11 and the lower part as the second plate 12 as examples.

[0044] Furthermore, a primary winding 2 and a secondary winding 3 are provided in the transformer and inductor integrated component 100. The output voltage of the transformer and inductor integrated component 100 can be adjusted through the primary winding 2 and the secondary winding 3 to realize the transformer function of the transformer and inductor integrated component 100. At the same time, the primary winding 2 and the secondary winding 3 can also generate a magnetic field through the current flowing to themselves to realize the resonant inductor function of the transformer and inductor integrated component 100.

[0045] Furthermore, the primary winding 2 can be positioned outside the inner post 13, and the secondary winding 3 can be positioned outside the intermediate winding post 14, or the primary winding 2 can be positioned outside the intermediate winding post 14, and the secondary winding 3 can be positioned outside the inner post 13, so as to realize the setting of the primary winding 2 and the secondary winding 3 respectively. The primary winding 2 and the secondary winding 3 can be set coaxially, which can reduce the space occupation. The primary winding 2 and the secondary winding 3 can be separated by the intermediate winding post 14 to reduce the coupling between the primary winding 2 and the secondary winding 3, thereby reducing the EMC radiation of the transformer and inductor integrated component 100.

[0046] In such Figure 2 and Figure 8 In the embodiment shown, the primary winding 2 is disposed outside the inner post 13, and the secondary winding 3 is disposed outside the intermediate winding post 14. The primary winding 2 and the secondary winding 3 can be separated by the intermediate winding post 14.

[0047] And, current transformer 4 is used to detect the current in the circuit, such as Figure 1 As shown, the current transformer 4 is installed on the magnetic core housing 1, thus realizing the installation of the current transformer 4. The current transformer 4 is used to detect the current of one of the primary winding 2 and the secondary winding 3. The current transformer 4 can be connected to the primary winding 2 so that the current transformer 4 can be used to detect the current of the primary winding 2, or the current transformer 4 can be connected to the secondary winding 3 so that the current transformer 4 can be used to detect the current of the secondary winding 3. In actual design, the current transformer 4 can be connected to the primary winding 2 or the secondary winding 3 according to specific requirements, which can improve the flexibility of the setting.

[0048] Therefore, in this application, by setting the core housing 1, the primary winding 2, the secondary winding 3 and the current transformer 4 can be provided with an installation position. The primary winding 2 and the secondary winding 3 can be protected by the first plate 11 and the second plate 12. The magnetic field generated by the primary winding 2 and the secondary winding 3 can be sealed by the outer post 15. The primary winding 2 and the secondary winding 3 are respectively set on both sides of the intermediate winding post 14 to realize the setting of the primary winding 2 and the secondary winding 3.

[0049] According to the embodiment of the present invention, the transformer and inductor integrated component 100 can realize the transformation function, resonant inductance function and current detection function by setting the primary winding 2, the secondary winding 3 and the current transformer 4. The transformation function and the resonant inductance function can share one of the windings, which can reduce the overall volume of the transformer and inductor integrated component 100, facilitate the setting of the transformer and inductor integrated component 100, reduce the setting cost, and improve the efficiency of the transformation function. Furthermore, by separating the primary winding 2 and the secondary winding 3 through the intermediate winding post 14, the coupling between the primary winding 2 and the secondary winding 3 can be reduced, effectively reducing the EMC radiation of the transformer and inductor integrated component 100.

[0050] In some embodiments, both the primary winding 2 and the secondary winding 3 have wire ends introduced or led out from the magnetic core housing 1, and the current transformer 4 is sleeved outside the wire end of one of the primary winding 2 and the secondary winding 3.

[0051] In other words, the primary winding 2 has a wire end that is introduced or led out from the magnetic core housing 1, and the secondary winding 3 also has a wire end that is introduced or led out from the magnetic core housing 1. The current transformer 4 is used to detect the current in the circuit. The current transformer 4 can be sleeved outside the wire end of one of the primary winding 2 and the secondary winding 3. That is, the current transformer 4 can be sleeved outside the wire end that is introduced or led out of the primary winding 2 to detect the current at the wire end that is introduced or led out of the primary winding 2, or the current transformer 4 can be sleeved outside the wire end that is introduced or led out of the secondary winding 3 to detect the current at the wire end that is introduced or led out of the secondary winding 3. In actual design, it can be flexibly set according to specific situation and actual needs.

[0052] In some embodiments, the outer column 15 is provided with a first outlet 151, and the wire end of one of the primary winding 2 and the secondary winding 3 is adapted to be introduced or led out from the first outlet 151, and at least a portion of the current transformer 4 is located in the first outlet 151.

[0053] Specifically, the first outlet 151 is used to provide an outlet position for the secondary winding 3, so that the lead-in or lead-out wire of the secondary winding 3 can be guided to the first outlet 151. The first outlet 151 is set on the outer post 15, so that the first outlet 151 is open to the outside of the magnetic core housing 1. The space between the intermediate winding post 14 and the outer post 15 can be connected to the external space through the first outlet 151, so that the wire end of the secondary winding 3 can be introduced or led out from the first outlet 151. This facilitates the connection of the wire end of the secondary winding 3 to the external circuit. At least part of the current transformer 4 is set at the first outlet 151, so that part or all of the current transformer 4 can be set at the first outlet 151, so that the current transformer 4 can be connected to the wire end of the secondary winding 3 for current detection at that point.

[0054] In some embodiments, one of the primary winding 2 and the secondary winding 3 has an input terminal and an output terminal, both of which are passed through the first outlet 151, and the current transformer 4 is sleeved outside one of the input terminal and the output terminal.

[0055] In other words, the secondary winding 3 can include an input terminal and an output terminal. Both the input terminal and the output terminal are passed through the first outlet 151, so that both the input terminal and the output terminal can be guided to the first outlet 151. This allows the input terminal and the output terminal to be connected to the external circuit at the first outlet 151, and also facilitates the connection of the secondary winding 3 to the external circuit at the first outlet 151. This enables the different functions of the transformer and inductor integrated component 100. In addition, the current transformer 4 can be fitted onto the input terminal or the output terminal to detect the input current or output current of the secondary winding 3.

[0056] In some embodiments, the outer post 15 is provided with a second outlet 152, and the middle winding post 14 is formed with a through-hole 141. The second outlet 152 is directly connected to the through-hole 141, and the wire end of the other of the primary winding 2 and the secondary winding 3 is introduced or led out from the through-hole 141 and the second outlet 152.

[0057] Specifically, the second outlet 152 is used to provide an outlet position for the primary winding 2, and the through-hole 141 is used to provide routing space for the primary winding 2. By setting the second outlet 152 on the outer post 15, the second outlet 152 can be set to open towards the outside of the magnetic core housing 1, and the space between the intermediate winding post 14 and the outer post 15 can be connected to the external space through the second outlet 152. By setting the through-hole 141 on the intermediate winding post 14, the space between the intermediate winding post 14 and the inner post 13 and the space between the intermediate winding post 14 and the outer post 15 can be connected through the through-hole 141 and the second outlet 152, so that the wire end of the primary winding 2 can be introduced or led out from the through-hole 141 and the second through-hole 141.

[0058] Furthermore, by connecting the second outlet 152 directly opposite the through-hole 141, it is convenient to introduce or exit the wire end of the primary winding 2, which is located inside the intermediate winding post 14, through the through-hole 141 and the second outlet 152. Thus, the wire end of the secondary winding 3 can be introduced or exited through the first outlet 151, and the wire end of the primary winding 2 can be introduced or exited through the through-hole 141 and the second outlet 152. This facilitates connecting the wire ends of the primary winding 2 and the secondary winding 3 to the external circuit, thereby realizing the different functions of the transformer and inductor integrated component 100.

[0059] Furthermore, it should be noted that the first wire outlet 151 and the second wire outlet 152 can be spaced apart to avoid interference between the wire ends of the primary winding 2 and the secondary winding 3, which could easily lead to incorrect wiring. Figures 3-6 As shown, the specific positions of the first outlet 151 and the second outlet 152 on the outer column 15 can be flexibly set according to the positions of the wire ends of the primary winding 2 and the secondary winding 3. The opening size of the first outlet 151 and the opening size of the second outlet 152 can also be flexibly set according to the wire end size and number of the primary winding 2 and the wire end size and number of the secondary winding 3.

[0060] In some embodiments, the intermediate winding post 14 is formed with an intermediate air gap 142 that is disconnected in a first direction.

[0061] Specifically, the primary winding 2 can be positioned inside the intermediate winding post 14, allowing the annular magnetic field generated by the primary winding 2 to pass through both the inner post 13 and the intermediate winding post 14. Figure 7 As shown, an intermediate air gap 142 is formed in the intermediate winding post 14. The intermediate air gap 142 is used to allow the intermediate winding post 14 to be disconnected at this point, and the intermediate air gap 142 extends in a first direction. Even if the extension direction of the intermediate air gap 142 is the same as the direction in which the magnetic field passes through the intermediate winding post 14, when the magnetic field passes through the intermediate air gap 142 from the intermediate winding post 14, leakage inductance can be generated at this point due to the change of the medium, and then a resonant inductance can be generated. Thus, the resonant inductance function of the transformer and inductor integrated component 100 can be realized.

[0062] In some embodiments, a first winding annular groove 16 is defined between the inner post 13 and the middle winding post 14, and a second winding annular groove 17 is defined between the middle winding post 14 and the outer post 15. The first winding annular groove 16 and the second winding annular groove 17 are connected by an intermediate air gap 142. One of the primary winding 2 and the secondary winding 3 is wound in the second winding annular groove 17, and the other of the primary winding 2 and the secondary winding 3 is wound in the first winding annular groove 16.

[0063] Specifically, the intermediate winding post 14 defines the first winding annular groove 16 and the second winding annular groove 17 with the inner post 13 and the outer post 15, respectively. That is, the second winding annular groove 17 is arranged around the first winding annular groove 16. The first winding annular groove 16 and the second winding annular groove 17 are used to provide installation positions for the primary winding 2 and the secondary winding 3. The primary winding 2 can be wound in the first winding annular groove 16 and the secondary winding 3 can be wound in the second winding annular groove 17 to realize the arrangement of the primary winding 2 and the secondary winding 3. The primary winding 2 and the secondary winding 3 can be arranged coaxially to reduce the space occupation. The intermediate winding post 14 can separate the first winding annular groove 16 and the second winding annular groove 17 to separate the primary winding 2 and the secondary winding 3, thereby reducing the coupling between the primary winding 2 and the secondary winding 3, and thus reducing the EMC radiation of the transformer and inductor integrated component 100.

[0064] Furthermore, connecting the first winding annular groove 16 and the second winding annular groove 17 through the intermediate air gap 142 facilitates the winding of the primary winding 2 and the secondary winding 3, or facilitates the replacement of the primary winding 2 or the secondary winding 3 when they fail. At the same time, it also allows the magnetic field to pass through the intermediate air gap 142.

[0065] In some embodiments, the transformer and inductor integrated component 100 further includes a first frame 5, one of the primary winding 2 and the secondary winding 3 is mounted on the first frame 5, the first frame 5 includes a support portion 51 and a first wiring portion 52, one of the primary winding 2 and the secondary winding 3 is supported on the support portion 51, and the wire end of one of the primary winding 2 and the secondary winding 3 is connected to the first wiring portion 52.

[0066] Specifically, such as Figure 2 As shown, the first frame 5 can be installed in the second winding annular groove 17 to realize the installation of the first frame 5. At the same time, the secondary winding 3 can be installed in the first frame 5 to realize the installation of the secondary winding 3 in the transformer and inductor integrated component 100. The first frame 5 includes two parts, namely a support part 51 and a first wiring part 52. The support part 51 is used to support the secondary winding 3, that is, the secondary winding 3 set in the second winding annular groove 17 is set above the support part 51, and the support part 51 supports the secondary winding 3 from below. The first wiring part 52 is used to provide a connection position for the secondary winding 3 and the external circuit. The wire end of the secondary winding 3 can be connected to the first wiring part 52, that is, the wire end of the secondary winding 3 can be connected to the external circuit at this point.

[0067] In some embodiments, the transformer and inductor integrated component 100 further includes a second frame 6, wherein the other of the primary winding 2 and the secondary winding 3 is adapted to be installed in the second frame 6. The second frame 6 includes a winding portion 61 and a second connection portion 62. The winding portion 61 forms an annular winding slot 611. The other of the primary winding 2 and the secondary winding 3 is wound in the annular winding slot 611, and the wire end of the other of the primary winding 2 and the secondary winding 3 is connected to the second connection portion 62.

[0068] Specifically, in such Figure 2 In the illustrated embodiment, the second frame 6 can be disposed within the first winding annular groove 16 to achieve the installation of the second frame 6. Simultaneously, the primary winding 2 can be installed within the second frame 6 to achieve the installation of the primary winding 2 within the transformer and inductor integrated component 100. The second frame 6 includes two parts, namely a winding portion 61 and a connecting portion 62. The winding portion 61 is used to allow the primary winding 2 disposed within the first winding annular groove 16 to be wound around the outside of the winding portion 61. The connecting portion 62 is used to allow the wire end of the primary winding 2 wound around the outside of the winding portion 61 to be connected to an external circuit at this location. Furthermore, the winding portion 61 forms an annular winding groove 611, which provides an installation position for the primary winding 2 wound around the outside of the winding portion 61. That is, when the primary winding 2 is wound around the outside of the winding portion 61, the primary winding 2 can be disposed within the annular winding groove 611.

[0069] Furthermore, by winding the primary winding 2 within the annular winding slot 611, the primary winding 2 can be installed within the magnetic core housing 1. By connecting the wire ends of the primary winding 2 to the second terminal 62, the wire ends of the primary winding 2 can be connected to the external circuit at the second terminal 62, thereby realizing the different functions of the transformer and inductor integrated component 100. Holes can be made in the first terminal 52 and the second terminal 62 respectively, so that the wire ends of the primary winding 2 and the secondary winding 3 can extend from the holes to connect to the external circuit.

[0070] In some specific embodiments, leakage inductance can be generated between the primary winding 2 and the secondary winding 3. That is, the inductance generated by the leakage of magnetic flux when the primary winding 2 and the secondary winding 3 are coupled can be used as part of the resonant circuit. The magnitude of the leakage inductance can be detected by selectively short-circuiting one of the primary winding 2 and the secondary winding 3. In other words, in the entire transformer and inductor integrated component 100, either the primary winding 2 or the secondary winding 3 can be short-circuited. When either the primary winding 2 or the secondary winding 3 is short-circuited, the magnetic field of the entire circuit changes, thereby allowing detection of leakage inductance at the intermediate air gap 142. Figure 8 In the embodiment shown, the secondary winding 3 can be short-circuited to detect whether there is leakage at the intermediate air gap 142.

[0071] as well as, Figure 9 The diagram shown is the equivalent circuit diagram of this application. When both the primary winding 2 and the secondary winding 3 are connected to an external circuit, the transformer and inductor integrated component 100 can perform the transformer function. When the secondary winding 3 is short-circuited, leakage inductance can be generated at the intermediate air gap 142, which can serve as part of a resonant circuit, thereby realizing the resonant inductor function of the transformer and inductor integrated component 100. The generated leakage inductance is equivalent to... Figure 9 The Lr in the current transformer can detect the leakage inductance, and the current transformer 4 can also be connected to the primary winding 2 to detect the current in the primary winding 2.

[0072] This utility model also proposes an inverter.

[0073] The inverter according to the embodiments of the present invention is provided with a transformer and inductor integrated component 100 as described in any of the above embodiments. By providing this transformer and inductor integrated component 100, the transformer function, resonant inductor function, and current detection function can be realized, and the transformer function and resonant inductor function can share one of the windings, which can reduce the overall volume of the transformer and inductor integrated component 100, thereby reducing the volume of the inverter, which is beneficial to the installation of the inverter and can reduce the installation cost.

[0074] This utility model also proposes an electrical device.

[0075] The electrical equipment according to the embodiments of the present invention is provided with a transformer and inductor integrated component 100 of any of the above embodiments or an inverter of the above embodiments. By sharing one winding for the transformer function and the resonant inductor function, the size of the inverter can be reduced, thereby reducing the size of the electrical equipment, which is beneficial for the installation of the electrical equipment and can reduce the installation cost of the electrical equipment.

[0076] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0077] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A transformer and inductor integrated component, characterized by, The transformer comprises: a magnetic core housing comprising a first plate body and a second plate body oppositely distributed along a first direction, an inner side column, an intermediate winding column and an outer side column being connected between the first plate body and the second plate body and being distributed at intervals, the intermediate winding column being arranged around the inner side column, and the outer side column being arranged around the intermediate winding column; a primary winding and a secondary winding, one of the primary winding and the secondary winding being wound outside the intermediate winding column, and the other of the primary winding and the secondary winding being wound outside the inner side column; a current transformer installed on the magnetic core housing and used for detecting a current of one of the primary winding and the secondary winding.

2. The transformer and inductor integrated component of claim 1, wherein, The primary winding and the secondary winding each have a wire end introduced or led out from the magnetic core housing, and the current transformer is sleeved outside the wire end of one of the primary winding and the secondary winding.

3. The transformer and inductor integrated component of claim 2, wherein, The outer side column is provided with a first wire outlet, and the wire end of one of the primary winding and the secondary winding is adapted to be introduced or led out from the first wire outlet, and at least part of the current transformer is located in the first wire outlet.

4. The transformer and inductor integrated component of claim 3, wherein, The wire end of one of the primary winding and the secondary winding comprises an input wire end and an output wire end, the input wire end and the output wire end are each threaded through the first wire outlet, and the current transformer is sleeved outside one of the input wire end and the output wire end.

5. The transformer and inductor integrated component of claim 2, wherein, The outer side column is provided with a second wire outlet, the intermediate winding column is formed with a threading opening, the second wire outlet communicates with the threading opening in a face-to-face manner, and the wire end of the other of the primary winding and the secondary winding is introduced or led out from the threading opening and the second wire outlet.

6. The transformer and inductor integrated component of any one of claims 1-5, wherein, The intermediate winding column is formed with an intermediate air gap broken in the first direction.

7. The transformer and inductor integrated component of claim 6, wherein, The inner side column and the intermediate winding column define a first winding ring groove therebetween, and the intermediate winding column and the outer side column define a second winding ring groove therebetween, and the first winding ring groove and the second winding ring groove communicate through the intermediate air gap. One of the primary winding and the secondary winding is wound in the second winding ring groove, and the other of the primary winding and the secondary winding is wound in the first winding ring groove.

8. The transformer and inductor integrated component of any one of claims 1-5, wherein, Further comprising a first skeleton, one of the primary winding and the secondary winding is installed on the first skeleton, the first skeleton comprises a support portion and a first wiring portion, one of the primary winding and the secondary winding is supported on the support portion, and the wire end of one of the primary winding and the secondary winding is connected to the first wiring portion.

9. The transformer and inductor integrated component of any one of claims 1-5, wherein, Further comprising a second skeleton, the other of the primary winding and the secondary winding is adapted to be installed on the second skeleton, the second skeleton comprises a winding portion and a second wiring portion, and the winding portion is formed with a ring-shaped winding groove; The other of the primary winding and the secondary winding is wound in the ring-shaped winding groove, and the wire end of the other of the primary winding and the secondary winding is connected to the second wiring portion.

10. An inverter, characterized by comprising: The transformer and the inductor integrated component are provided.

11. An electrical appliance characterized by A transformer and inductor integrated component according to any one of claims 1-9 or an inverter according to claim 10 is provided.

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