CN215896111U - High-frequency transformer for communication power supply - Google Patents

High-frequency transformer for communication power supply Download PDF

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Publication number
CN215896111U
CN215896111U CN202120861816.9U CN202120861816U CN215896111U CN 215896111 U CN215896111 U CN 215896111U CN 202120861816 U CN202120861816 U CN 202120861816U CN 215896111 U CN215896111 U CN 215896111U
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China
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spring
frame body
heat dissipation
connecting block
power supply
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CN202120861816.9U
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Chinese (zh)
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瞿莹
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HUAIAN DINGXIN ELECTRONICS CO Ltd
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HUAIAN DINGXIN ELECTRONICS CO Ltd
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Abstract

The utility model discloses a frame body; the base is connected below the frame body; the water blocking cover is connected above the frame body; the heat dissipation holes are formed in the upper end of one side face of the frame body; the bottom damping device is connected to the bottom of the inner cavity of the frame body; a shield main body connected above the bottom damping device; the third spring rods are connected to all walls of the inner cavity of the shielding case main body; a third connecting block connected to an end of the third spring bar; the transformer main body is provided with a groove and is connected with the third connecting block through the groove; and the shielding cover cap is connected with the shielding cover main body through a locking piece. Utility model simple structure, convenient operation, reduction intensity of labour, improvement work efficiency.

Description

High-frequency transformer for communication power supply
Technical Field
The utility model belongs to the technical field of transformers, and particularly relates to a high-frequency transformer for a communication power supply.
Background
The transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, and has the functions of voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization and the like. The high-frequency transformer is a power transformer with the working frequency exceeding the medium frequency (10kHz), is mainly used as a high-frequency switching power transformer in a high-frequency switching power supply, and is also used as a high-frequency inverter power transformer in a high-frequency power supply and a high-frequency inverter welding machine. Because high-frequency current and voltage change exists in the high-frequency switching power supply, EMI is conducted in the coupling mode of conducting wire and parasitic inductance and parasitic capacitance, and meanwhile, the change of the current and the voltage is accompanied by the change of magnetic field and electric field to form radiation EMI, all topological switching power supplies have the problem of electromagnetic interference. In a specific power circuit, the main reason for causing electromagnetic interference is that the transformer structural design is unreasonable, the leakage inductance and parasitic capacitance of the transformer are large, the high-frequency rapid change of the drain current and voltage of the MOS tube is caused, and serious electromagnetic interference is generated through the coupling of the parasitic capacitance of the transformer
Publication number CN208767138 discloses a high-frequency transformer with shielding function, and relates to the technical field of high-frequency transformers. The high-frequency transformer with the shielding function comprises a high-frequency transformer body and a base; the base comprises a bottom shielding plate, a transverse sliding shielding plate, a side shielding plate and a vertical sliding shielding plate, and a closed frame structure is formed by the shielding plates, so that the high-frequency transformer body is positioned in the closed frame structure, and the problem that the electromagnetic interference of the switching power supply is large due to large leakage inductance and large parasitic capacitance of the conventional high-frequency transformer is solved; the transverse sliding shielding plate and the vertical sliding shielding plate are in sliding connection with the side shielding plates and can be detached, so that the high-frequency transformer body can be maintained and replaced.
The problems existing in the prior art are as follows: the existing high-frequency transformer for the communication power supply has poor heat dissipation effect, is easily interfered by external signals and influences the working stability.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a high-frequency transformer for a communication power supply, which is simple in structure and convenient to operate. The utility model provides the following technical scheme: a high frequency transformer for a communication power supply, comprising:
a frame body;
the base is connected below the frame body;
the water blocking cover is connected above the frame body;
the heat dissipation holes are formed in the upper end of one side face of the frame body;
the bottom damping device is connected to the bottom of the inner cavity of the frame body;
a shield main body connected above the bottom damping device;
the third spring rods are connected to all walls of the inner cavity of the shielding case main body;
a third connecting block connected to an end of the third spring bar;
the transformer main body is provided with a groove and is connected with the third connecting block through the groove;
a shield cover connected to the shield main body by a locking member;
a second spring bar connected below the shield cover;
the second connecting block is connected to the end part of the second spring rod and is connected with the groove;
the side damping device is connected between the side wall of the inner cavity of the frame body and the shielding case main body;
and the heat dissipation device is connected to the lower end of one side of the frame body, which is far away from the heat dissipation holes.
Preferably, the base includes a first spring bar, a bottom plate and a first connecting block, wherein: the first connecting block is fixedly connected with the bottom of the frame body, the first spring rod is connected below the first connecting block, and the bottom plate is connected below the first spring rod.
Preferably, the shape of the water blocking cover is an arc shape protruding upward.
Preferably, one side, far away from the transformer body, of the heat dissipation hole is connected with a filter screen.
Preferably, bottom damping device includes second slide rail, slide bar, second sliding block, second connecting rod, second fixed plate, fifth spring lever and second spring, wherein: the second fixed plate with the bottom fixed connection of shield cover main part, the below of second fixed plate through the fifth spring beam with the inner chamber bottom of framework is connected, the inner chamber bottom of framework is located fifth spring beam both sides position is connected with the second slide rail, be connected with the slide bar on the second slide rail, the second sliding block cover is established on the slide bar, be connected with the cover between second sliding block and the second slide rail and establish the second spring on the slide bar, the second sliding block pass through the second connecting rod with the second fixed plate is connected.
Preferably, side damping device includes first slide rail, first spring, first sliding block, fourth spring rod, first connecting rod and first fixed plate, wherein: the first fixing plate is connected to the inner cavity side wall of the frame body, the first fixing plate is connected with the side wall of the shielding case main body through the fourth spring rod, the side wall of the shielding case main body is located the positions of the two sides of the fourth spring rod are connected with first sliding rails, the first sliding rails are connected with first sliding blocks, the first sliding blocks are connected with the side wall of the first sliding rails through first springs, and first connecting rods are connected between the first sliding blocks and the first fixing plate.
Preferably, heat abstractor includes heat abstractor framework, first filter screen, spliced pole, fan and second filter screen, wherein: the heat dissipation device comprises a heat dissipation device frame body, wherein the heat dissipation device frame body is connected with the heat dissipation device frame body, two sides of the heat dissipation device frame body are respectively connected with a first filter screen and a second filter screen, a connecting column is arranged inside the heat dissipation device frame body, and a fan is connected to the connecting column.
The utility model has the beneficial effects that: 1. the heat dissipation performance is good, and the service life of the device can be prolonged; 2, the interference of external signals can be reduced, and the working stability of the device is ensured; 3, the damping and buffering function is good, and the influence of external impact or vibration on the working performance of the device is prevented; 4, the dust-proof and water-proof effects are good; 5 simple structure and convenient use.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic diagram of the present invention.
In the figure: the transformer comprises a frame body 1, 11 heat dissipation holes, a base 2, a first spring rod 21, a bottom plate 22, a first connecting block 23, a water retaining cover 3, a transformer main body 4, a groove 41, a shielding cover 5, a second spring rod 51, a second connecting block 52, a locking part 53, a shielding cover main body 6, a third spring rod 61, a third connecting block 62, a side damping device 7, a first sliding rail 71, a first spring 72, a first sliding block 73, a fourth spring rod 74, a first connecting rod 75, a first fixing plate 76, a heat dissipation device 8, a heat dissipation device frame 81, a first filter screen 82, a connecting column 83, a fan 84, a second filter screen 85, a damping device bottom 9, a second sliding rail 91, a sliding rod 92, a second sliding block 93, a second connecting rod 94, a second fixing plate 95, a fifth spring rod 96 and a second spring 97.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments, and not all of the embodiments. Other embodiments, which can be derived by those skilled in the art from the embodiments given herein without inventive faculty, are within the scope of the utility model.
As shown in the figure, the present invention provides a technical solution: a high frequency transformer for a communication power supply, comprising:
a frame body 1; a base 2, the base 2 is connected the below of framework 1, the base 2 includes first spring beam 21, bottom plate 22 and first connecting block 23, wherein: the first connecting block 23 is fixedly connected with the bottom of the frame body 1, the first spring rod 21 is connected below the first connecting block 23, and the bottom plate 22 is connected below the first spring rod 21, so that when the device is subjected to downward force, a good damping and buffering effect can be achieved; the water blocking cover 3 is connected above the frame body 1, and the water blocking cover 3 is in an arc shape protruding upwards, so that a good rainproof effect can be achieved;
the heat dissipation holes 11 are formed in the upper end of one side face of the frame body 1, and a filter screen is connected to one side, away from the transformer body 4, of each heat dissipation hole 11, so that a certain dustproof effect can be achieved; heat abstractor 8, heat abstractor 8 connects framework 1 keeps away from the lower extreme of louvre 11 one side, heat abstractor 8 includes heat abstractor framework 81, first filter screen 82, spliced pole 83, fan 84 and second filter screen 85, wherein: the heat dissipation device frame 81 is connected with the frame 1, a first filter screen 82 and a second filter screen 85 are respectively connected to two sides of the heat dissipation device frame 81, a connecting column 83 is arranged inside the heat dissipation device frame 81, a fan 84 is connected to the connecting column 83, the fan 84 introduces external cold air into the frame 1 and discharges hot air in the frame 1 from the heat dissipation holes 11, so that a good heat dissipation effect is achieved, and meanwhile, external dust can be prevented from entering the first filter screen 82 and the second filter screen 85, and a good dustproof effect is achieved;
bottom damping device 9, bottom damping device 9 connects in the inner chamber bottom of framework 1, bottom damping device 9 includes second slide rail 91, slide bar 92, second sliding block 93, second connecting rod 94, second fixed plate 95, fifth spring pole 96 and second spring 97, wherein: the second fixing plate 95 is fixedly connected with the bottom of the shield main body 6, the lower part of the second fixing plate 95 is connected with the bottom of the inner cavity of the frame body 1 through a fifth spring rod 96, the bottom of the inner cavity of the frame body 1 is connected with second slide rails 91 at positions on two sides of the fifth spring rod 96, the second slide rails 91 are connected with slide bars 92, the second slide blocks 93 are sleeved on the slide bars 92, second springs 97 sleeved on the slide bars 92 are connected between the second slide blocks 93 and the second slide rails 91, the second slide blocks 93 are connected with the second fixing plate 95 through second connecting rods 94, and when external action is received, the second fixing plate 95 is driven to drive the second connecting rods 94 to press down so as to drive the second slide blocks 93 to extrude the second springs 97, and the second spring rods 96 receive extrusion, so that a good buffering effect can be achieved;
a shield main body 6, the shield main body 6 being connected above the bottom damping device 9; a shield cover 5, the shield cover 5 being connected to the shield main body 6 by a locking member 53; the third spring rod 61, the said third spring rod 61 connects to every wall of cavity of the said shield main body 6; a third connecting block 62, the third connecting block 62 being connected to an end of the third spring bar 61; the transformer body 4 is provided with a groove 41, and is connected with the third connecting block 62 through the groove 41; a second spring bar 51, the second spring bar 51 being connected below the shield cover 5; a second connecting block 52, wherein the second connecting block 52 is connected to the end of the second spring rod 51, and the second connecting block 52 is connected to the groove 41; certain buffering and heat dissipation effects can be achieved between the connection of the shielding cover 5 and the transformer main body 4 and the connection of the shielding cover main body 6, and meanwhile, the existence of the shielding cover can achieve the effect of preventing external signal interference;
the side damping device 7 is connected between the side wall of the inner cavity of the frame body 1 and the shield cover main body 6; the side damping device 7 includes a first slide rail 71, a first spring 72, a first slide block 73, a fourth spring rod 74, a first link 75, and a first fixing plate 76, wherein: first fixed plate 76 is connected the inner chamber lateral wall of framework 1, first fixed plate 76 through fourth spring beam 74 with the lateral wall of shield cover main part 6 is connected, the lateral wall of shield cover main part 6 is located the position of fourth spring beam 74 both sides is connected with first slide rail 71, be connected with first sliding block 73 on the first slide rail 71, connect through first spring 72 between the lateral wall of first sliding block 73 and first slide rail 71, be connected with first connecting rod 75 between first sliding block 73 and the first fixed plate 76, when the device received side impact, first fixed plate 76 drove first connecting rod 72 and makes first sliding block 73 extrude first spring 72, and fourth spring beam 74 received the extrusion simultaneously, can play fine shock attenuation buffering's effect.
Although the utility model has been described in terms of the above specific embodiments, the inventive concept is not limited to the present invention, and any modifications using the inventive concept are intended to be included within the scope of the appended claims.

Claims (7)

1. A high-frequency transformer for a communication power supply, comprising:
a frame body (1);
the base (2), the said base (2) is connected below the said frame (1);
the water blocking cover (3), the water blocking cover (3) is connected above the frame body (1);
the heat dissipation holes (11), wherein the heat dissipation holes (11) are formed in the upper end of one side face of the frame body (1);
the bottom damping device (9), the bottom damping device (9) is connected to the bottom of the inner cavity of the frame body (1);
a shield body (6), the shield body (6) being connected above the bottom damping device (9);
the third spring rod (61), the said third spring rod (61) connects to every wall of cavity of the said shielding cage body (6); a third connecting block (62), the third connecting block (62) being connected to an end of the third spring rod (61);
the transformer body (4) is provided with a groove (41), and is connected with the third connecting block (62) through the groove (41);
a shield cover (5), the shield cover (5) being connected to the shield body (6) by a locking member (53); a second spring bar (51), the second spring bar (51) being connected below the shield cover (5);
a second connecting block (52), wherein the second connecting block (52) is connected to the end of the second spring rod (51), and the second connecting block (52) is connected with the groove (41);
the side damping device (7), the side damping device (7) is connected between the side wall of the inner cavity of the frame body (1) and the shielding case main body (6);
the heat dissipation device (8) is connected to the lower end of one side, far away from the heat dissipation hole (11), of the frame body (1).
2. A high-frequency transformer for a communication power supply according to claim 1, characterized in that: the base (2) comprises a first spring rod (21), a bottom plate (22) and a first connecting block (23), wherein: the first connecting block (23) is fixedly connected with the bottom of the frame body (1), the first spring rod (21) is connected below the first connecting block (23), and the bottom plate (22) is connected below the first spring rod (21).
3. A high-frequency transformer for a communication power supply according to claim 1, characterized in that: the shape of the water blocking cover (3) is an arc shape protruding upwards.
4. A high-frequency transformer for a communication power supply according to claim 1, characterized in that: one side of the heat dissipation hole (11) far away from the transformer body (4) is connected with a filter screen.
5. A high-frequency transformer for a communication power supply according to claim 1, characterized in that: bottom damping device (9) include second slide rail (91), slide bar (92), second sliding block (93), second connecting rod (94), second fixed plate (95), fifth spring lever (96) and second spring (97), wherein: second fixed plate (95) with the bottom fixed connection of shield cover main part (6), the below of second fixed plate (95) through fifth spring beam (96) with the inner chamber bottom of framework (1) is connected, the inner chamber bottom of framework (1) is located fifth spring beam (96) both sides position is connected with second slide rail (91), be connected with slide bar (92) on second slide rail (91), second sliding block (93) cover is established on slide bar (92), be connected with between second sliding block (93) and second slide rail (91) and establish second spring (97) on slide bar (92), second sliding block (93) through second connecting rod (94) with second fixed plate (95) are connected.
6. A high-frequency transformer for a communication power supply according to claim 1, characterized in that: the side damping device (7) comprises a first slide rail (71), a first spring (72), a first slide block (73), a fourth spring rod (74), a first connecting rod (75) and a first fixing plate (76), wherein: first fixed plate (76) are connected the inner chamber lateral wall of framework (1), first fixed plate (76) through fourth spring beam (74) with the lateral wall of shield cover main part (6) is connected, the lateral wall of shield cover main part (6) is located the position of fourth spring beam (74) both sides is connected with first slide rail (71), be connected with first sliding block (73) on first slide rail (71), connect through first spring (72) between the lateral wall of first sliding block (73) and first slide rail (71), be connected with first connecting rod (75) between first sliding block (73) and first fixed plate (76).
7. A high-frequency transformer for a communication power supply according to claim 1, characterized in that: heat abstractor (8) includes heat abstractor framework (81), first filter screen (82), spliced pole (83), fan (84) and second filter screen (85), wherein: the heat dissipation device comprises a heat dissipation device frame body (81), a first filter screen (82) and a second filter screen (85) are connected to the two sides of the heat dissipation device frame body (81) respectively, a connecting column (83) is arranged inside the heat dissipation device frame body (81), and a fan (84) is connected to the connecting column (83).
CN202120861816.9U 2021-04-25 2021-04-25 High-frequency transformer for communication power supply Active CN215896111U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120861816.9U CN215896111U (en) 2021-04-25 2021-04-25 High-frequency transformer for communication power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120861816.9U CN215896111U (en) 2021-04-25 2021-04-25 High-frequency transformer for communication power supply

Publications (1)

Publication Number Publication Date
CN215896111U true CN215896111U (en) 2022-02-22

Family

ID=80347130

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120861816.9U Active CN215896111U (en) 2021-04-25 2021-04-25 High-frequency transformer for communication power supply

Country Status (1)

Country Link
CN (1) CN215896111U (en)

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