Integrated transformer

Abstract

The utility model provides an integrated transformer which comprises a base, a main transformer and a resonant inductor, the main transformer comprises a first frame, a plurality of heat dissipation assemblies and a first coil, each heat dissipation assembly comprises a fixing frame and a copper plate located in the fixing frame, a first pin is arranged on the copper plate, and the resonant inductor comprises a second frame and a second coil. Second pins are arranged at the two ends of the second coil, a plurality of connecting holes communicated with the main transformer and the resonant inductor respectively are further formed in the base, and the connecting holes are located at the corners of the base respectively. According to the integrated transformer disclosed by the utility model, the plurality of connecting holes are formed in the base and are respectively communicated with the main transformer and the resonant inductor, so that when glue is poured into the integrated transformer, the firmness among the base, the main transformer and the resonant inductor can be improved by the glue under the action of the connecting holes, and the integrated transformer is firmer; and the integrated transformer is effectively prevented from loosening.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to an integrated transformer. Background Art

[0002] An integrated transformer is usually a device that combines multiple transformers or inductors to form a whole to achieve specific functions or meet specific requirements. With the rapid development of new energy vehicles, the charging power requirements, voltage requirements, and current requirements for on-board equipment are becoming increasingly higher. Therefore, transformers and resonant inductors are often combined to form an integrated transformer to meet the needs. The bottom of the base of the integrated transformer in the prior art is provided with a receiving groove for holding glue. The receiving groove for holding glue is not connected to the main transformer and the resonant inductor. After the integrated transformer is injected with glue, the glue can only wrap the main transformer, the resonant inductor, and the outer surface of the base, which can easily cause the main transformer and the resonant inductor to become loose from the base.

[0003] Therefore, it is necessary to provide an integrated transformer to solve the above technical problems. Utility Model Content

[0004] The utility model provides an integrated transformer, which solves the problems of resonant inductance and looseness between the main transformer and the base in the integrated transformer in the prior art.

[0005] To solve the above technical problems, the technical solution of the present invention is: an integrated transformer, comprising a base, a main transformer connected to the base, and a resonant inductor located on one side of the main transformer, the main transformer comprising a first frame, a plurality of heat dissipation components connected in the first frame, and a first coil connected between adjacent heat dissipation components, the heat dissipation components comprising a fixing frame and a copper plate connected in the fixing frame, the resonant inductor comprising a second frame and a second coil connected in the second frame, the base being provided with a plurality of connection holes respectively connected to the main transformer and the resonant inductor, and the plurality of connection holes being respectively located at the corners of the base.

[0006] In the present invention, a first pin passing through the base is provided on one or both sides of the copper plate close to one end of the base, a second pin passing through the base is provided at both ends of the second coil, and a third pin is further provided at the middle of the copper plate;

[0007] A long strip is further provided on a side of the base away from the resonant inductor and the main transformer, and a plurality of positioning holes for socketing the second pin and the third pin are provided on the long strip;

[0008] A long strip is further provided on a side of the base away from the resonant inductor and the main transformer. The long strip is provided with a plurality of positioning holes for sleeve-connecting the second pin and the third pin.

[0009] In the present invention, a placement groove for placing the long strip is further provided on a side of the base away from the resonant inductor and the main transformer.

[0010] In the present invention, a strip hole communicating with the main transformer is further provided in the placement groove.

[0011] In the present invention, the heat dissipation assembly further includes a plurality of ring sleeves located between adjacent fixing frames and used for winding the first coil, and the fixing frames and the ring sleeves are integrally formed.

[0012] In the present invention, the heat dissipation component is further provided with a plurality of protective films, and the plurality of protective films are respectively located on both sides of the copper plate.

[0013] In the present invention, the fixing frame includes a left shell and a right shell detachably connected to the left shell.

[0014] In the present invention, a partition plate is further provided on the base, and the main transformer and the resonant inductor are respectively located on both sides of the partition plate.

[0015] In the present invention, L-shaped pressing plates are respectively provided on both sides of the fixing frame away from one end of the first pin, and the outlet end of the first coil is located inside the pressing plates.

[0016] In the present invention, a connecting base for fixing the output end of the first coil is provided on a side of the first frame away from the second frame, and a fourth pin passing through the base is further provided below the output end of the first coil.

[0017] Compared with the prior art, the present invention has the following beneficial effects: the integrated transformer of the present invention is respectively connected to the main transformer and the resonant inductor by arranging a plurality of connection holes on the base; when the integrated transformer is glued, due to the effect of the connection holes, the glue can increase the firmness between the base, the main transformer and the resonant inductor, thereby making the integrated transformer more firm and effectively preventing the integrated transformer from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. The drawings described below are only drawings corresponding to some embodiments of the present invention.

[0019] Figure 1 The three-dimensional integrated transformer of the utility model Figure 1 .

[0020] Figure 2 The three-dimensional integrated transformer of the utility model Figure 2 .

[0021] Figure 3 It is a three-dimensional diagram of the base of the integrated transformer of the present utility model.

[0022] Figure 4 It is a three-dimensional diagram of the resonant inductor of the integrated transformer of the present invention.

[0023] Figure 5 It is a three-dimensional diagram of the heat dissipation component of the integrated transformer of the present invention.

[0024] Figure 6 for Figure 5 A partial enlarged view of part A.

[0025] Figure 7 This is a three-dimensional diagram of the copper plate of the integrated transformer of the present invention. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0027] Unless otherwise defined, technical or scientific terms used herein shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.

[0028] The words "first", "second" and similar terms used in the present patent application specification and claims do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0030] The following is a preferred embodiment of an integrated transformer provided by the present invention that can solve the above technical problems.

[0031] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 ,in Figure 1 The three-dimensional integrated transformer of the utility model Figure 1 , Figure 2 The three-dimensional integrated transformer of the utility model Figure 2 , Figure 3 This is a three-dimensional diagram of the base of the integrated transformer of the utility model. Figure 4 It is a three-dimensional diagram of the resonant inductor of the integrated transformer of the present invention.

[0032] In the figures, structurally similar elements are denoted by the same reference numerals.

[0033] The terms "first" and "second" in the present invention are used for descriptive purposes only and should not be understood as indicating or implying relative importance, nor as limiting the order of precedence.

[0034] The utility model provides an integrated transformer, including a base 11, a main transformer 12 connected to the base 11, and a resonant inductor located on one side of the main transformer 12, the main transformer 12 including a first frame 121, a plurality of heat dissipation components 122 connected in the first frame 121, and a first coil 123 connected between adjacent heat dissipation components 122, the heat dissipation component 122 including a fixing frame 1231 and a copper plate 1233 connected in the fixing frame 1231, the resonant inductor including a second frame 13 and a second coil 131 connected in the second frame 13, a plurality of connection holes 114 respectively connected to the main transformer 12 and the resonant inductor are provided on the base 11, the plurality of connection holes 114 are respectively located at the corners of the base 11, the base 11 is used to install the main transformer 12 and the resonant inductor, the main transformer 12 and the resonant inductor are used to be connected to a circuit board, the first frame 121 is used to install the plurality of heat dissipation components 122, the first coil 123 is located adjacent Between the heat dissipation components 122, the copper plate 1233 is connected to the circuit board through the first pin 12331, and the first coil 123 is cooled by the copper plate 1233. The second frame 13 is used to install the second coil 131. The resonant inductor is connected to the circuit board through the second pin 132 of the second coil 131. A plurality of connecting holes 114 are provided on the base 11, and the connecting holes 114 on the base 11 are all connected to the resonant inductor and the main transformer 12. When the integrated transformer is injected with glue, the glue can flow along the connecting holes 114 to the bottom of the base 11. When the glue fills the transformer and solidifies, the glue wraps the base 11, the resonant inductor, and the main transformer 12. Due to the action of the connecting holes 114, the glue in the connecting holes 114 is connected with the glue at the bottom of the base 11 and the glue of the main transformer 12 and the glue of the resonant inductor. The glue can effectively improve the firmness between the base 11, the main transformer 12, and the resonant inductor, thereby preventing the integrated transformer from loosening.

[0035] Please refer to Figure 7 , Figure 7This is a three-dimensional diagram of the copper plate of the integrated transformer of the utility model. A first pin 12331 passing through the base 11 is provided on one or both sides of the copper plate 1233 close to one end of the base 11, and a second pin 132 passing through the base 11 is provided at both ends of the second coil 131. A third pin 12332 is also provided in the middle of the copper plate 1233. A long plate 113 is also provided on the side of the base 11 away from the resonant inductor and the main transformer 12. The long plate 113 is provided with a plurality of positioning holes for socketing the second pin 132 and the third pin 12332. The copper plate 1233 is connected to the circuit board through the first pin 12331, and the resonant inductor is connected to the circuit board through the second pin 132 of the second coil 131. The second pin 132 is used to pass through the base 11 and be connected to the long plate 113. The long plate 113 is used to further position the main transformer 12. After the glue is injected, the main transformer 12 is more firmly connected to the base 11.

[0036] A placement slot 115 for placing the long strip 113 is also provided on the side of the base 11 away from the resonant inductor and the main transformer 12. The placement slot 115 is used to place the long strip 113 so that the long strip 113 is connected to the base 11, thereby reducing the thickness of the base 11 and effectively reducing the volume of the integrated transformer.

[0037] A strip hole 116 communicating with the main transformer 12 is further provided in the placement groove 115 . The strip hole 116 is used to further increase the area communicating between the base 11 and the main transformer 12 , so that the connection between the main transformer 12 and the base 11 is more firmly established after glue injection.

[0038] Please refer to Figure 5 and Figure 6 , Figure 5 This is a three-dimensional diagram of the heat dissipation component of the integrated transformer of the utility model. Figure 6 for Figure 5 In the partial enlarged view of part A, the heat dissipation assembly 122 also includes a plurality of ring sleeves 1232 located between adjacent fixing frames 1231 and used for winding the first coil 123. The fixing frames 1231 and the ring sleeves 1232 are integrally formed. The ring sleeves 1232 are used to connect adjacent fixing frames 1231 so that adjacent fixing frames 1231 will not separate. At the same time, the ring sleeves 1232 are used to install the first coil 123, which facilitates the winding of the first coil 123 between adjacent fixing frames 1231. At the same time, the integrally formed fixing frames 1231 and the ring sleeves 1232 are not easy to separate.

[0039] The heat dissipation component 122 is also provided with multiple protective films 1234, which are respectively located on both sides of the copper plate 1233. The protective films 1234 are used to separate adjacent copper plates 1233 to protect the copper plates 1233, prevent the copper plates 1233 from oxidation, and increase the service life of the copper plates 1233.

[0040] The fixing frame 1231 includes a left shell and a right shell detachably connected to the left shell, which is used to facilitate the installation and removal of the copper plate 1233 and the protective film 1234, thereby saving the efficiency of installation and removal.

[0041] A partition is also provided on the base 11 , and the main transformer 12 and the resonant inductor are respectively located on both sides of the partition. The partition is used to separate the main transformer 12 and the resonant inductor to prevent the main transformer 12 and the resonant inductor from touching each other.

[0042] L-shaped pressing plates 1235 are respectively provided on both sides of the fixing frame 1231 away from one end of the first pin 12331. The output end of the first coil 123 is located inside the pressing plate 1235. The pressing plate 1235 is used to limit the appearance of the first coil 123, making the integrated transformer more beautiful.

[0043] A connecting base 111 for fixing the output end of the first coil 123 is provided on the side of the first frame 121 away from the second frame 13. A fourth pin 112 passing through the base 11 is also provided below the output end of the first coil. The output end of the first coil 123 is connected to the fourth pin 112. The connecting base 111 is used to fix the output end of the first coil 123 and the fourth pin 112. The fourth pin 112 is used to connect to the circuit board.

[0044] Working principle:

[0045] When installing the integrated transformer, first, the main transformer 12 and the resonant inductor are respectively installed on the base 11, and the first pin 12331, the third pin 12332, and the fourth pin 112 of the main transformer 12 are respectively extended into the base 11 and pass through the base 11, and the third pin 12332 is connected to the placement groove 115 and the strip hole 116. Further, the long strip 113 is extended into the placement groove 115, and the second pin 132 and the third pin 12332 are both connected to the positioning hole of the long strip 113. The long strip 113 is used to position the main transformer 12 and the resonant inductor to prevent the main transformer 12 and the resonant inductor from shaking on the base 11. Further, When the integrated transformer is to be injected with glue, the first pin 12331, the second pin 132, the third pin 12332, and the fourth pin 112 of the integrated transformer are respectively connected to the circuit board, and the installed integrated transformer is injected with glue. The glue flows from the top of the main transformer 12 and the resonant inductor to the bottom of the base 11. When the glue fills the integrated transformer and solidifies, since the connection hole 114 on the base 11 is connected to the main transformer 12 and the resonant inductor, and the strip hole 116 is connected to the main transformer 12, the glue can effectively increase the firmness of the base 11, the main transformer 12 and the resonant inductor, making the integrated transformer more firm and effectively preventing the integrated transformer from loosening.

[0046] The integrated transformer of this preferred embodiment is connected to the main transformer and the resonant inductor respectively by providing a plurality of connection holes on the base. When the integrated transformer is glued, the glue can increase the firmness between the base, the main transformer and the resonant inductor due to the effect of the connection holes, thereby making the integrated transformer more secure and effectively preventing the integrated transformer from loosening.

[0047] In summary, although the present invention has been disclosed above with reference to preferred embodiments, the above preferred embodiments are not intended to limit the present invention. A person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined by the claims.

Claims

1. An integrated transformer, characterized in that: The invention comprises a base, a main transformer connected to the base, and a resonant inductor located on one side of the main transformer. The main transformer comprises a first frame, a plurality of heat dissipation components connected within the first frame, and a first coil connected between adjacent heat dissipation components. The heat dissipation components comprise a fixing frame and a copper plate connected within the fixing frame. The resonant inductor comprises a second frame and a second coil connected within the second frame. The base is provided with a plurality of connection holes respectively connected to the main transformer and the resonant inductor, and the plurality of connection holes are respectively located at the corners of the base.

2. The integrated transformer according to claim 1, characterized in that A first pin passing through the base is provided on one or both sides of the copper plate close to one end of the base, a second pin passing through the base is provided at both ends of the second coil, and a third pin is provided in the middle of the copper plate; A long strip is further provided on a side of the base away from the resonant inductor and the main transformer. The long strip is provided with a plurality of positioning holes for sleeve-connecting the second pin and the third pin.

3. The integrated transformer according to claim 2, characterized in that: A placement groove for placing the long strip is further provided on a side of the base away from the resonant inductor and the main transformer.

4. The integrated transformer according to claim 3, characterized in that: A strip hole communicating with the main transformer is also provided in the placement groove.

5. The integrated transformer according to claim 1, characterized in that: The heat dissipation assembly further includes a plurality of ring sleeves located between adjacent fixing frames and used for winding the first coil, and the fixing frames and the ring sleeves are integrally formed.

6. The integrated transformer according to claim 1, characterized in that: The heat dissipation component is further provided with a plurality of protective films, and the plurality of protective films are respectively located on both sides of the copper plate.

7. The integrated transformer according to claim 1, characterized in that: The fixing frame includes a left shell and a right shell detachably connected to the left shell.

8. The integrated transformer according to claim 1, characterized in that: A partition plate is also provided on the base, and the main transformer and the resonant inductor are respectively located on both sides of the partition plate.

9. The integrated transformer according to claim 2, characterized in that: L-shaped pressing plates are respectively provided on both sides of the fixing frame away from one end of the first pin, and the outlet end of the first coil is located inside the pressing plates.

10. The integrated transformer according to claim 9, characterized in that: A connecting base for fixing the output end of the first coil is provided on a side of the first frame away from the second frame, and a fourth pin passing through the base is further provided below the output end of the first coil.

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