An integrated transformer with excellent heat dissipation effect

Abstract

The present invention discloses an integrated transformer with good heat dissipation effect, which includes a housing, a transformer, an inductor, and a bracket; the housing has a potting groove, the transformer, the inductor, and the bracket are all arranged in the potting groove, the bracket is arranged on the transformer and the inductor and is locked to the potting groove through a first connecting piece; the transformer has a first terminal, the inductor has a second terminal, and both the first and second terminals are arranged at the upper end of the bracket. A heat-conducting potting adhesive is filled in the potting groove, and a potting gap is reserved between the bracket and the transformer and the inductor to enable the heat-conducting potting adhesive to flow into the potting groove through the potting gap. The heat-conducting potting adhesive covers the bracket, and both the first and second terminals are exposed outside the heat-conducting potting adhesive; thus, through the integrated design of the transformer and the inductor, the stability of the product is ensured. The heat-conducting potting adhesive covers the bracket, so that the cover surface of the heat-conducting potting is exposed, making the product have a better heat dissipation effect, which is beneficial to extending the service life of the product, with good use stability and wide application range.

Description

Technical Field

[0001] The present invention relates to the technology in the field of transformers, and particularly to an integrated transformer with good heat dissipation effect. Background Art

[0002] At present, a transformer is a device that uses the principle of electromagnetic induction to change the AC voltage. With the wide use of transformers in all walks of life, the demand for transformers is huge. Manufacturers need to produce transformers in large quantities to meet the social demand.

[0003] Most of the existing transformers adopt natural heat dissipation or potting with thermal conductive glue. Among them, the heat dissipation effect of natural heat dissipation is poor and it occupies a large space. In the design of potting glue, some use potting glue with low hardness, which requires special design of wire routing layout and terminal structure, increasing the overall size of the product. Some use potting glue with high hardness. Although it can fix the position of the outgoing wire well, the curing stress of the potting glue will cause the magnetic core to crack, thus affecting the performance of the product and even causing the product to fail, unable to meet the user's usage requirements.

[0004] Therefore, it is necessary to study a new technical solution to solve the above problems. Summary of the Invention

[0005] In view of this, aiming at the deficiencies existing in the prior art, the main purpose of the present invention is to provide an integrated transformer with good heat dissipation effect. Through the integrated design of the transformer and the inductor, the stability of the product is ensured. The heat-conducting potting glue covers the bracket, making the product have a better heat dissipation effect, which is beneficial to extending the service life of the product, having good use stability and wide application range.

[0006] To achieve the above purpose, the present invention adopts the following technical solution:

[0007] An integrated transformer with good heat dissipation effect, including a housing and a transformer, an inductor, and a bracket arranged on the housing; wherein:

[0008] The housing has a potting groove extending downward. The transformer, the inductor, and the bracket are all arranged in the potting groove. The bracket is arranged at the upper end of the transformer and the inductor and is locked to the potting groove through a first connecting piece. The transformer has a first terminal, and the inductor has a second terminal. The first terminal and the second terminal are both arranged at the upper end of the bracket. The potting groove is filled with heat-conducting potting glue. A potting gap is reserved between the bracket and the transformer and the inductor, so that the heat-conducting potting glue flows into the potting groove in the potting gap. The heat-conducting potting glue covers the upper end of the bracket, and the first terminal and the second terminal are both exposed outside the heat-conducting potting glue.

[0009] As a preferred solution, the upper potting surface of the heat-conducting potting glue is flush with the upper end of the housing.

[0010] As a preferred solution, the thermally conductive potting adhesive is a thermally conductive silica gel.

[0011] As a preferred solution, the transformer includes a first transformer and a second transformer. The first transformer and the second transformer are arranged left and right in the potting groove. The first transformer is located on the left side of the inductor, and the second transformer is located behind the inductor. The bracket is respectively provided with convex parts corresponding to the first wiring terminal and the second wiring terminal, and the first wiring terminal and the second wiring terminal are arranged on the bracket from the corresponding convex parts.

[0012] As a preferred solution, both the first transformer and the second transformer include a bobbin, a magnetic core arranged on the bobbin, and a coil wound around the magnetic core. There are two magnetic cores, and the coil is wound around the two magnetic cores. The coil has lead wires, and the inductor has two connection ends. The lead wire of the first transformer is connected to one of the connection ends of the inductor, and the other connection end is connected to the second wiring terminal through a connecting wire. The lead wire of the second transformer is connected to the first wiring terminal.

[0013] As a preferred solution, a cover body is further arranged outside the magnetic core. The coil is hidden inside the cover body, and the lead wire of the coil extends out from the upper end of the cover body.

[0014] As a preferred solution, the bobbin has an upper frame and a lower frame that are assembled and connected up and down. Both ends of the upper frame and the lower frame are provided with connecting parts. Connecting holes are opened on the magnetic core, and the upper and lower ends of the connecting holes penetrate through the magnetic core respectively. The connecting parts of the upper frame and the lower frame extend into the corresponding connecting holes at the upper and lower ends of the magnetic core, and the connecting parts of the upper frame and the lower frame are connected by a second connecting piece to form the assembled connection between the two magnetic cores and the bobbin.

[0015] As a preferred solution, there are two partitions extending upward in the potting groove. One of the two partitions is arranged between the first transformer, the second transformer and the inductor, and the other partition is arranged between the second transformer and the inductor. The two partitions form a T shape to isolate the first transformer, the second transformer and the inductor from each other, and the lower end of the bracket is limited by the two partitions.

[0016] As a preferred solution, a rubber pad is arranged at the lower end of the housing.

[0017] As a preferred solution, a heat sink is covered inside the rubber pad.

[0018] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, it mainly integrates the design of a transformer and an inductor, sets the first and second connection terminals on a bracket and locks the bracket in a potting groove, and then potting with a thermally conductive potting adhesive, ensuring the stability of the product. The thermally conductive potting adhesive covers the bracket, making the surface of the thermally conductive potting exposed, so that the product has better heat dissipation effect, which is beneficial to extending the service life of the product. The structure design is simple, ingenious and reasonable, with good use stability and wide application range;

[0019] Secondly, the setting of the first transformer and the second transformer improves the power density of the product. At the same time, the setting of the partition avoids the mutual influence among the first transformer, the second transformer and the inductor, thus avoiding potential safety hazards of the product, being beneficial to improving the stability of the product, facilitating the positioning between each component and the potting groove. Moreover, the layout of the first transformer, the second transformer and the inductor reduces the overall volume of the product, lowers the production cost and improves the production efficiency of the product;

[0020] In addition, the setting of the rubber pad plays a role in buffering and shock absorption. And the setting of the heat sink further improves the heat dissipation effect of the product, so as to improve the use stability of the product, and further improves the product quality.

[0021] To more clearly illustrate the structural features and functions of the present invention, the following will combine the drawings and specific embodiments to detail the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is the first three-dimensional schematic diagram of the embodiment of the present invention (the thermally conductive potting adhesive is shown in the figure);

[0023] Figure 2 is the second three-dimensional schematic diagram of the embodiment of the present invention (the thermally conductive potting adhesive is not shown in the figure);

[0024] Figure 3 is the exploded view of the embodiment of the present invention;

[0025] Figure 4 is the exploded view of the first transformer of the embodiment of the present invention;

[0026] Figure 5 is the cross-sectional view of the embodiment of the present invention.

[0027] Description of the reference numerals in the drawings:

[0028] 10. Housing 11. Potting groove

[0029] 111. Partition 12. Bracket

[0030] 121. First connecting member 122. Convex portion

[0031] 13. Thermal potting adhesive 14. Rubber pad

[0032] 141. Heat sink 20. Transformer

[0033] 21. First transformer 22. Second transformer

[0034] 221. First terminal 23. Skeleton

[0035] 231. Upper frame 232. Lower frame

[0036] 233. Connecting part 234. Second connecting member

[0037] 24. Magnetic core 241. Connecting hole

[0038] 25. Coil 251. Lead wire

[0039] 26. Cover 30. Inductor

[0040] 31. Second terminal 32. Connection end

[0041] 33. Connecting wire. Specific embodiments

[0042] Please refer to Figures 1 to 5 as shown, which shows the specific structure of the embodiment of the present invention.

[0043] An integrated transformer with good heat dissipation effect includes a housing 10 and a transformer 20, an inductor 30, and a bracket 12 arranged on the housing 10; wherein:

[0044] The housing 10 is provided with a potting groove 11 extending downward. The transformer 20, the inductor 30 and the bracket 12 are all arranged in the potting groove 11. The bracket 12 is arranged at the upper ends of the transformer 20 and the inductor 30 and is locked to the potting groove 11 through a first connecting member 121. The transformer 20 has a first terminal 221, and the inductor 30 has a second terminal 31. Both the first terminal 221 and the second terminal 31 are arranged at the upper end of the bracket 12. The potting groove 11 is filled with a thermally conductive potting adhesive 13. A potting gap is reserved between the bracket 12 and the transformer 20 and the inductor 30, so that the thermally conductive potting adhesive 13 flows into the potting groove 11 through the potting gap. The thermally conductive potting adhesive 13 covers the upper end of the bracket 12, and both the first terminal 221 and the second terminal 31 are exposed outside the thermally conductive potting adhesive 13. Here, the upper potting surface of the thermally conductive potting adhesive 13 is flush with the upper end of the housing 10. Preferably, the thermally conductive potting adhesive 13 is thermally conductive silicone. In this way, by arranging the first and second terminals on the bracket and locking the bracket in the potting groove, and then potting the thermally conductive potting adhesive, the stability of the product is ensured. The thermally conductive potting adhesive covers the bracket, so that the potting surface of the thermally conductive adhesive is exposed, making the product have a better heat dissipation effect and being beneficial to extending the service life of the product.

[0045] As Figure 3 shown, in this embodiment, the transformer 20 includes a first transformer 21 and a second transformer 22. The first transformer 21 and the second transformer 22 are arranged left and right in the potting groove 11. The first transformer 21 is located on the left side of the inductor 30, and the second transformer 22 is located behind the inductor 30. The bracket 12 is respectively provided with protrusions 122 corresponding to the first terminal 221 and the second terminal 31. The first terminal 221 and the second terminal 31 are arranged on the bracket 12 from the corresponding protrusions 122. Moreover, the first terminal 221 is arranged on the second transformer 22.

[0046] Here, the potting groove 11 is provided with two partitions 111 extending upward. One of the two partitions 111 is arranged between the first transformer 21, the second transformer 22 and the inductor 30, and the other partition 111 is arranged between the second transformer 22 and the inductor 30. The two partitions 111 form a T shape to isolate the first transformer 21, the second transformer 22 and the inductor 30 from each other. The lower end of the bracket 12 is limited by the two partitions 111. Here, the upper end of the partition 111 is provided with a first mounting hole, and the bracket 12 is provided with a second mounting hole corresponding to the first mounting hole. The first connecting member 121 is sequentially connected to the second mounting hole and the first mounting hole from top to bottom to form the connection between the bracket 12 and the housing 10.

[0047] Preferably, a rubber pad 14 is provided at the lower end of the housing 10; and, a heat sink 141 is covered inside the rubber pad 14, so that the heat of the housing 10 can also be dissipated outward through the heat sink 141. In this way, the rubber pad is provided to achieve a buffering and shock-absorbing effect, and the heat sink is provided to further improve the heat dissipation effect of the product, so as to improve the use stability of the product, and further improve the product quality.

[0048] Generally, both the first transformer 21 and the second transformer 22 include a bobbin 23, a magnetic core 24 disposed on the bobbin 23, and a coil 25 wound around the magnetic core 24. There are two magnetic cores 24, and the coil 25 is wound around the two magnetic cores 24. The coil 25 has a lead wire 251. The inductor 30 has two connection terminals 32. The lead wire 251 of the first transformer 21 is connected to one of the connection terminals 32 of the inductor 30, and the other connection terminal 32 is connected to the second terminal 31 through a connection wire 33. The lead wire 251 of the second transformer 22 is connected to the first terminal 221; and, a cover 26 is further provided outside the magnetic core 24. The coil 25 is hidden inside the cover 26, and the lead wire 251 of the coil 25 extends out from the upper end of the cover 26.

[0049] In addition, the bobbin 23 has an upper frame 231 and a lower frame 232 that are assembled and connected up and down. Connection portions 233 are provided at both ends of the upper frame 231 and the lower frame 232. Connection holes 241 are formed on the magnetic core 24. The upper and lower ends of the connection holes 241 penetrate through the magnetic core 24 respectively. The connection portions 233 of the upper frame 231 and the lower frame 232 extend into the corresponding connection holes 241 at the upper and lower ends of the magnetic core 24, and the connection portions 241 of the upper frame 231 and the lower frame 232 are connected by a second connecting member 234 to form an assembled connection between the two magnetic cores 24 and the bobbin 23.

[0050] As Figure 4 shown, there are two bobbins 23 of the first transformer 21. Correspondingly, there are two connection holes 241 of the magnetic core 24, which are arranged left and right on the magnetic core 24. Moreover, the two magnetic cores 24 of the first transformer 21 are arranged to extend left and right, and the two bobbins 23 are arranged left and right on the magnetic core 24.

[0051] The design focus of the present invention is that mainly through the integrated design of the transformer and the inductor, the first and second terminals are arranged on the bracket and the bracket is locked in the potting groove, and then the heat-conducting potting glue is potted, which ensures the stability of the product. The heat-conducting potting glue covers the bracket, so that the cover surface of the heat-conducting glue potting is exposed, making the product have a better heat dissipation effect, which is beneficial to extending the service life of the product. The structural design is simple, ingenious and reasonable, the use stability is good, and the applicable range is wide;

[0052] Secondly, the setting of the first transformer and the second transformer improves the power density of the product. At the same time, the setting of the partition avoids the mutual influence among the first transformer, the second transformer and the inductor, thereby avoiding potential safety hazards of the product, facilitating the positioning between each component and the potting groove, and improving the stability of the product. Moreover, the layout of the first transformer, the second transformer and the inductor reduces the overall volume of the product, lowers the production cost and improves the production efficiency of the product;

[0053] In addition, the setting of the rubber pad plays a role in buffering and shock absorption. Also, the setting of the heat sink further improves the heat dissipation effect of the product, improves the use stability of the product, and thus improves the product quality.

[0054] The above are only the preferred embodiments of the present invention, and do not impose any limitation on the technical scope of the present invention. Therefore, any minor modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An integrated transformer with excellent heat dissipation effect, Characterized in that: It includes a housing and a transformer, an inductor, and a bracket arranged on the housing; wherein: The housing has a potting groove extending downward, the transformer, the inductor, and the bracket are all arranged in the potting groove, the bracket is arranged at the upper ends of the transformer and the inductor and is locked to the potting groove through a first connecting piece; the transformer has a first terminal, the inductor has a second terminal, both the first terminal and the second terminal are arranged at the upper end of the bracket, the potting groove is filled with a thermally conductive potting adhesive, a potting gap is reserved between the bracket and the transformer and the inductor so that the thermally conductive potting adhesive flows into the potting groove in the potting gap, the thermally conductive potting adhesive covers the upper end of the bracket, and both the first terminal and the second terminal are exposed outside the thermally conductive potting adhesive; The transformer includes a first transformer and a second transformer, the first transformer and the second transformer are arranged left and right in the potting groove, the first transformer is located on the left side of the inductor, the second transformer is located behind the inductor, the bracket is respectively provided with protrusions corresponding to the first terminal and the second terminal, and the first terminal and the second terminal are arranged on the bracket from the corresponding protrusions; Both the first transformer and the second transformer include a bobbin, a magnetic core arranged on the bobbin, and a coil wound around the magnetic core, there are two magnetic cores, the coil is wound around the two magnetic cores, the coil has lead wires, the inductor has two connection ends, the lead wires of the first transformer are connected to one of the connection ends of the inductor, and the other connection end is connected to the second terminal through a connecting wire, and the lead wires of the second transformer are connected to the first terminal.

2. The integrated transformer with excellent heat dissipation effect according to claim 1, Characterized in that: The upper potting surface of the thermally conductive potting adhesive is flush with the upper end of the housing.

3. The integrated transformer with excellent heat dissipation effect according to claim 1, Characterized in that: The thermally conductive potting adhesive is thermally conductive silicone.

4. The integrated transformer with excellent heat dissipation effect according to claim 1, Characterized in that: A cover body is further arranged outside the magnetic core, the coil is hidden inside the cover body, and the lead wires of the coil extend out from the upper end of the cover body.

5. The integrated transformer with excellent heat dissipation effect according to claim 1, Characterized in that: The bobbin has an upper frame and a lower frame which are assembled and connected up and down, both ends of the upper frame and the lower frame are provided with connecting parts, the magnetic core is provided with connecting holes, the upper and lower ends of the connecting holes penetrate through the magnetic core respectively, the connecting parts of the upper frame and the lower frame extend into the corresponding connecting holes at the upper and lower ends of the magnetic core, and the connecting parts of the upper frame and the lower frame are connected through a second connecting piece to form the assembly connection between the two magnetic cores and the bobbin.

6. The integrated transformer with excellent heat dissipation effect according to claim 1, Characterized in that: The potting groove is provided with two partitions extending upward. One of the two partitions is arranged between the first transformer, the second transformer and the inductor, and the other partition is arranged between the second transformer and the inductor. The two partitions form a T shape to isolate the first transformer, the second transformer and the inductor from each other, and the lower end of the bracket is restricted by the two partitions.

7. An integrated transformer with good heat dissipation effect according to claim 1, characterized in that: a rubber pad is arranged at the lower end of the housing.

8. An integrated transformer with good heat dissipation effect according to claim 7, characterized in that: heat sinks are covered in the rubber pad.

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