TWM652011U - Transformer and electronic device having transformer - Google Patents

Abstract

The present invention is a transformer, which is suitable for being installed on a circuit board. The circuit board has an accommodating hole and a plurality of pin jacks. The transformer includes: a transformer shell, which is arranged in the accommodating hole of the circuit board; a transformer A wire frame is arranged in the transformer housing and has a spacer located outside the transformer housing; and a plurality of conductive pins are fixed in the spacer of the transformer wire frame and inserted into the circuit board from top to bottom. According to this, after the transformer and the circuit board are assembled with each other, the circuit board will not bear the weight of the transformer. This invention can indeed reduce the damage to the circuit board caused by the weight of the transformer after assembly.

Description

Transformers and electronic devices incorporating transformers

The present invention relates to a transformer for an electronic device, and particularly refers to a transformer and an electronic device with a transformer.

Referring to Figure 1, a schematic diagram of a general electronic device 10 is shown. It mainly has a circuit board 12 (PCB board) on a bottom plate 11 of a shell. The circuit board is provided with capacitors 13, conductive posts 14 and other electronic components. In addition, In order to enable the electronic device 10 to have a voltage conversion function, a transformer 15 is disposed on the circuit board 12 . The transformer 15 is directly mounted on the circuit board 12, and the conductive pins 151 of the transformer 15 are inserted into the circuit board 12 for soldering.

However, since the transformer 15 includes two or more sets of coils and iron cores (not shown in the figure), it is quite heavy; as the current circuit board 12 is designed to be thinner and thinner, its size is getting smaller and smaller. The circuit board 12 can no longer carry the overloaded transformer 15, and the overweight transformer 15 will inevitably cause damage to the circuit board 12 if it is used for a long time. At the same time, since the transformer 15 is directly installed on the circuit board 12, the transformer 15 is not working properly. High heat will be generated due to the eddy current loss (iron loss) of the iron core or the load current flowing through the coil, and the heat will be directly conducted to the circuit board 12, which may cause damage or affect other electronic parts of the circuit board 12 over a long period of time. operation.

The purpose of the present invention is to provide a transformer and an electronic device with the transformer, which mainly reduce damage to the circuit board caused by the assembly of the transformer.

Another purpose of the present invention is to provide a transformer and an electronic device with the transformer, which mainly increase the heat dissipation effect of the transformer.

In order to achieve the aforementioned purpose, the present invention is a transformer suitable for being installed on a circuit board. The circuit board has a first surface, a second surface opposite to the first surface, and a transformer penetrating the first surface and the second surface. There are two receiving holes on the surface, and a plurality of pin jacks penetrating the first surface and the second surface. The transformer includes: a transformer shell, which is provided in the receiving hole of the circuit board; a transformer wire frame, which is provided on the circuit board. The transformer casing has a spacer located outside the transformer casing; and a plurality of conductive pins fixed in the spacer of the transformer frame and inserted from the first surface of the circuit board toward the second surface. in this pin jack.

Preferably, each of the conductive pins has a first straight section fixed on the spacing part and located in the receiving hole, and a bend connecting the first straight section and extending towards the first surface. A folded section, a second straight section connected to the bent section and located on the first surface, an insertion section connected to the second straight section and inserted into the pin socket, and an insertion section connected to the plug The welding section is located below the second surface.

Preferably, the spacing portion of the transformer frame has a plurality of grooves, and the first straight section of each conductive pin is correspondingly fixed in the groove.

Preferably, the transformer bobbin further has a winding portion located inside the transformer housing, and an outlet portion connected to the winding portion and located outside the transformer housing.

In addition, to achieve the aforementioned purpose, the present invention also provides an electronic device with a transformer, including: a case bottom plate; a circuit board fixed on the case bottom plate and having a first surface and a circuit board opposite to the first surface. a second surface of the surface, a receiving hole penetrating the first surface and the second surface, and a plurality of pin jacks penetrating the first surface and the second surface; a transformer housing arranged in the container of the circuit board hole, and has a shell surface in contact with the shell bottom plate; a transformer wire frame is arranged in the transformer shell, and has a spacer located outside the transformer shell; and a plurality of conductive pins are fixed on the transformer shell. The spacer portion of the transformer frame is inserted into the pin jack from the first surface toward the second surface of the circuit board.

The function of the present invention is that when the transformer and the circuit board are combined with each other, the transformer can be installed in the receiving hole of the circuit board through the design of the receiving hole of the circuit board, thereby avoiding being directly installed on the circuit board. The negative impact caused by the load-bearing of the circuit board is caused by the conductive pin design of the transformer, which can be inserted into the circuit board and electrically connected to the circuit board. Therefore, this invention can indeed reduce the installation cost of the transformer. Eventually causing damage to the circuit board. On the other hand, when the transformer set is installed in the receiving hole of the circuit board, a shell surface of the transformer shell is in contact with the shell bottom plate, so that the heat generated by the transformer during operation can be effectively dissipated. , thereby increasing the heat dissipation effect of the transformer.

Preferably, each of the conductive pins has a first straight section fixed on the spacing part and located in the receiving hole, and a bend connecting the first straight section and extending towards the first surface. A folded section, a second straight section connected to the bent section and located on the first surface, an insertion section connected to the second straight section and inserted into the pin socket, and an insertion section connected to the plug The welding section is located below the second surface.

Preferably, the spacing portion of the transformer frame has a plurality of grooves, and the first straight section of each conductive pin is correspondingly fixed in the groove.

Preferably, the transformer bobbin further has a winding portion located inside the transformer housing, and an outlet portion connected to the winding portion and located outside the transformer housing.

Referring to FIGS. 2 to 5 , an electronic device with a transformer provided in an embodiment of the present invention is mainly composed of a case base 20 , a circuit board 30 , and a transformer 100 , wherein the transformer 100 is made of It is composed of a transformer housing 40, a transformer frame 50, and a plurality of conductive pins 60, wherein:

The bottom plate 20 is provided with a circuit board fixing post 21 at each of its four corners. The bottom plate 20 is made of metal and has better heat dissipation effect, but is not limited thereto.

The circuit board 30 is fixed on the bottom plate 20 of the shell. In this embodiment, the four corners of the circuit board 30 are each provided with a nesting portion 31 that is placed on the circuit board fixing post 21 to keep the circuit boards 30 apart. The bottom plate 20 of the shell is at a distance; in addition, the circuit board 30 has a first surface 32 , a second surface 33 opposite to the first surface 32 , and a container penetrating the first surface 32 and the second surface 33 . The hole 34 and a plurality of pin holes 35 penetrating the first surface 32 and the second surface 33 are provided.

The transformer housing 40 is disposed in the receiving hole 34 of the circuit board 30 and has a housing surface 41 in contact with the housing bottom plate 20 .

The transformer frame 50 is arranged in the transformer housing 40 and has a winding portion 51 located in the transformer housing 40 for winding the power supply wire and for the iron core to pass through. A winding portion 51 is connected to the winding portion 51 . An outlet portion 52 located outside the transformer housing 40, and a spacer portion 53 connected to the outlet portion 52 and away from the winding portion 51 and located outside the transformer housing 40; in this embodiment, the spacer portion 53 Grooves 531 having a plurality of spaced designs.

The plurality of conductive pins 60 are fixed on the spacer part 53 of the transformer frame 50 , and each has a groove 531 fixed on the spacer part 53 and located in the receiving hole 34 of the circuit board 30 . A straight section 61, a bent section 62 connected to the first straight section 61 and extending toward the first surface 32 of the circuit board 30, and a bent section 62 connected to the first surface 32 of the circuit board 30 32, an insertion section 64 connected to the second straight section 63 and inserted into the pin jack 35 of the circuit board 30, and an insertion section 64 connected to the The welding section 65 under the second surface 33 of the circuit board 30 can conduct conductive welding with the second surface 33 of the circuit board 30 .

The above is the description of each main component of the embodiment of the present invention. The new model has at least the following effects:

First, lowering the assembly of the transformer 100 causes damage to the circuit board 30 . When the transformer 100 and the circuit board 30 are assembled with each other, the design of the accommodating hole 34 of the circuit board 30 allows the transformer 100 to be assembled in the accommodating hole 34 of the circuit board 30 and against the accommodating hole 34 of the circuit board 30 . On the bottom plate 20 of the shell, the conductive pins 60 of the transformer 100 are designed to be inserted into the circuit board 30 and electrically connected to the circuit board 30. Therefore, through the structural design of the present invention, the transformer 100 is connected to the circuit board 30. After the circuit boards 30 are assembled with each other, the circuit board 30 will not bear the weight of the transformer 100, and therefore the circuit board 30 will not cause adverse effects due to load-bearing. Accordingly, the invention can indeed reduce the installation cost of the transformer 100. Later, the circuit board 30 was damaged due to the weight.

Second, the heat dissipation effect of the transformer 100 is increased. When the transformer 100 and the circuit board 30 are assembled with each other, the transformer 100 is not only assembled in the receiving hole 34 of the circuit board 30, but also has one of the housing surfaces 41 of the transformer housing 40 in contact with The shell bottom plate 20 is in contact, so that the heat generated by the transformer 100 during operation can be transferred to the shell bottom plate 20 and effectively dissipated through the shell bottom plate 20 with a larger area. Accordingly, the invention can indeed increase the heat dissipation of the transformer 100 Effect.

It is worth mentioning that this invention uses the structural design of each conductive pin 60 so that each conductive pin 60 can be inserted into the circuit board 30 from top to bottom, so that only the welding section 65 of the conductive pin 60 is located on the The bottom of the circuit board 30 (ie, the second surface 33). Accordingly, the invention can be shielded under the circuit board 30 through a jig (not shown in the figure), so that only the welding section 65 of the conductive pin 60 is connected to the The contact point of the second surface 33 of the circuit board 30 is exposed, so that the soldering operation between each conductive pin 60 and the circuit board 30 can be performed through a tin furnace, which has the effect of improving production efficiency and product quality.

10: Electronic devices 11: Shell bottom plate 12:Circuit board 13: Capacitor 14:Conductive pillar 15:Transformer 151:Conductive pin 100:Transformer 20: Shell bottom plate 21: Circuit board fixing post 30:Circuit board 31: Setup Department 32: First surface 33: Second surface 34: Accommodation hole 35: Pin jack 40: Transformer housing 41: Shell surface 50: Transformer wire frame 51: Winding Department 52: Outgoing line department 53: Spacer 531: Groove 60:Conductive pin 61: The first straight section 62: Bending section 63: The second straight section 64: Insertion segment 65:Welding section

Figure 1 is a schematic diagram of a conventional electronic device with a transformer; Figure 2 is a three-dimensional assembly view of the new embodiment of the present invention; Figure 3 is a partial enlarged view of the embodiment of the present invention; Figure 4 is a cross-sectional view of line segment 4-4 in Figure 3; and Figure 5 is a perspective view of the embodiment of the present invention, showing the three-dimensional state of the transformer.

100:Transformer

20: Shell bottom plate

30:Circuit board

32: First surface

33: Second surface

34: Accommodation hole

35: Pin jack

40: Transformer housing

41: Shell surface

50: Transformer wire frame

51: Winding Department

52: Outgoing line department

53: Spacer

60:Conductive pin

61: The first straight section

62: Bending section

63: The second straight section

64: Insertion segment

65:Welding section

Claims (8)

A transformer suitable for being disposed on a circuit board. The circuit board has a first surface, a second surface opposite to the first surface, a receiving hole penetrating the first surface and the second surface, and A plurality of pin jacks penetrate the first surface and the second surface, and the transformer includes: a transformer housing, arranged in the receiving hole of the circuit board; A transformer frame is disposed in the transformer housing and has a spacer located outside the transformer housing; and A plurality of conductive pins are fixed at the spacing portion of the transformer frame, and are inserted into the pin jack from the first surface toward the second surface of the circuit board. The transformer according to claim 1, wherein each of the conductive pins has a first straight section fixed in the spacing part and located in the receiving hole, a first straight section connected to the first straight section and facing the first A bent section extending in the surface direction, a second straight section connected to the bent section and located on the first surface, an insertion section connected to the second straight section and inserted into the pin socket, and a welding section connected to the insertion section and located under the second surface. The transformer according to claim 2, wherein the spacing portion of the transformer frame has a plurality of grooves, and the first straight sections of each conductive pin are correspondingly fixed in the grooves. The transformer according to claim 1, wherein the transformer bobbin further has a winding portion located inside the transformer housing, and an outlet portion connected to the winding portion and located outside the transformer housing. An electronic device with a transformer, including: One shell bottom plate; A circuit board is fixed on the bottom plate of the shell and has a first surface, a second surface opposite to the first surface, a receiving hole penetrating the first surface and the second surface, and a plurality of holes penetrating the first surface and the second surface. Pin jacks on the first surface and the second surface; A transformer housing is provided in the receiving hole of the circuit board and has a housing surface in contact with the bottom plate of the housing; A transformer frame is disposed in the transformer housing and has a spacer located outside the transformer housing; and A plurality of conductive pins are fixed at the spacing portion of the transformer frame, and are inserted into the pin jack from the first surface toward the second surface of the circuit board. The electronic device with a transformer as described in claim 5, wherein each of the conductive pins has a first straight section fixed on the spacing part and located in the receiving hole, and a first straight section connected to the first straight section. and a bent section extending toward the first surface, a second straight section connected to the bent section and located on the first surface, and a second straight section connected to the second straight section and inserted into the pin jack An insertion section, and a welding section connected to the insertion section and located under the second surface. The electronic device with a transformer as claimed in claim 6, wherein the spacing portion of the transformer frame has a plurality of grooves, and the first straight sections of each conductive pin are correspondingly fixed in the grooves. The electronic device with a transformer as claimed in claim 5, wherein the transformer frame also has a winding portion located inside the transformer housing, and an outlet portion connected to the winding portion and located outside the transformer housing.

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