Long-life vehicle-mounted integrated transformer

Abstract

The utility model relates to the technical field of integrated transformers, and discloses a long-life vehicle-mounted integrated transformer which comprises a circuit board, a transformer is arranged at the top end of the circuit board, a plurality of pins are fixedly connected to the front end and the rear end of the transformer, fixing holes are formed in the front side and the rear side of the top end of the circuit board, and a protective shell is arranged at the top end of the circuit board. Fixing shells are fixedly connected to the front end and the rear end of the protective shell correspondingly, pressing blocks are slidably connected to the inner walls of the fixing shells correspondingly, push plates are fixedly connected to the opposite ends of the pressing blocks correspondingly, and springs are fixedly connected to the opposite ends of the push plates correspondingly. According to the transformer protection device, the pressing block is pressed to insert the push plate into the fixing hole in the circuit board, then the pressing block is loosened to enable the clamping block to be clamped at the bottom end of the circuit board to fix the protection shell on the circuit board, then the hand wheel is rotated to enable the fixing plate to be attached to the surface of the transformer to clamp the transformer, and the transformer and the circuit board are prevented from falling off when a vehicle shakes.

Description

Technical Field

[0001] The utility model relates to the technical field of integrated transformers, in particular to a long-life vehicle-mounted integrated transformer. Background Art

[0002] The transformer is a step-down transformer mainly used for power transmission and transformation in a unit or substation. It is also the core part of the substation. The transformer is the core equipment of the traction power supply system of electric locomotives. It has the function of converting the alternating voltage of the mains into direct current and then passing it through semiconductor switching devices. It is also an AC-DC inverter circuit described in electronics theory and is also a key equipment to ensure the safe and stable operation of the traction power supply system.

[0003] After searching, a vehicle-mounted integrated transformer with announcement number CN215680300U includes a main body, a core body and an auxiliary body, wherein the core body is located inside the main body, and the auxiliary body is located at the outer end of the core body. The main body includes a transformer body, a socket one and a USB, wherein the socket one is fixedly installed at the outer end of the transformer body, and the USB is fixedly installed at the right end of the socket one. The main body also includes a power button, a switch button, a socket two, a base and a handle. This heat-dissipating new energy vehicle-mounted integrated transformer can prevent the transformer from contacting the ground by installing the main body. At the same time, the base can increase stability and support force to disperse weight, reduce the impact of ground moisture on the transformer, and extend the service life of the transformer, effectively improving the practicality and convenience of the heat-dissipating new energy vehicle-mounted integrated transformer.

[0004] Based on the above patent, the existing vehicle-mounted integrated transformer mentioned in its background technology directly solders the transformer to the vehicle's circuit board through pins. When the vehicle is driving on a bumpy road, the vehicle will shake, which may cause the pins to become desoldered from the circuit board, resulting in the transformer being unable to be used normally. In response to this technical problem, the present application proposes a long-life vehicle-mounted integrated transformer. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a long-life vehicle-mounted integrated transformer, in which the transformer is clamped in a protective shell and the protective shell is fixed on a circuit board to prevent the transformer from falling off the circuit board due to bumps during vehicle driving.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A long-life vehicle-mounted integrated transformer comprises a circuit board, a transformer is arranged at the top of the circuit board, a plurality of pins are fixedly connected at both front and rear ends of the transformer, fixing holes are arranged at both front and rear sides of the top of the circuit board, a protective shell is arranged at the top of the circuit board, a fixed shell is fixedly connected at both front and rear ends of the protective shell, a pressure block is slidably connected to the inner wall of the fixed shell, a push plate is fixedly connected to the opposite end of the pressure block, a spring is fixedly connected to the opposite end of the push plate, a card block is fixedly connected to the outward end of the push plate, the left and right ends of the protective shell are connected to the fixed plate through a clamping assembly, and the top of the protective shell is connected to a ventilation hole through a heat dissipation assembly.

[0008] Furthermore, the clamping assembly includes a threaded rod threadedly connected at both ends of the protective shell, the outward end of the threaded rod is fixedly connected to a handwheel, and the opposite end of the threaded rod is fixedly connected to the outward end of the fixed plate.

[0009] Furthermore, the heat dissipation assembly includes a mounting shell fixedly connected to the top of the protective shell, a fan is fixedly connected to the inner wall of the mounting shell, the ventilation holes are all arranged at the top of the mounting shell, and a plurality of heat dissipation holes are arranged on the right side of the top of the protective shell.

[0010] Furthermore, the bottom ends of the pins are fixedly connected to the top end of the circuit board.

[0011] Furthermore, the outer walls of the push plates are slidably connected to the inner walls of the fixed shell, and the top ends of the card blocks are arranged at the bottom ends of the circuit boards.

[0012] Furthermore, the other end of the spring is fixedly connected to the outward end of the protective shell.

[0013] Furthermore, opposite ends of the fixing plate are respectively arranged at left and right ends of the transformer.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, the transformer is clamped in the protective shell and the protective shell is fixed on the circuit board through the cooperation of the fixing plate with the hand wheel, the threaded rod, the pressure block, the push plate, the spring and the fixing hole, so as to prevent the transformer from falling off the circuit board due to bumps during the driving of the vehicle.

[0016] 2. In the utility model, the fan cooperates with the heat dissipation holes, the mounting shell and the ventilation holes, so that the outside air enters the protective shell from the ventilation holes, and the gas inside the protective shell is discharged through the heat dissipation holes, forming a circulation that helps to dissipate heat and improve the service life of the transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional diagram of a long-life vehicle-mounted integrated transformer proposed by the utility model;

[0018] Figure 2 This is a cross-sectional view of a circuit board in a long-life vehicle-mounted integrated transformer proposed by the utility model;

[0019] Figure 3 The utility model provides a cross-sectional view of a protective shell in a long-life vehicle-mounted integrated transformer.

[0020] Legend:

[0021] 1. Circuit board; 2. Hand wheel; 3. Threaded rod; 4. Protective shell; 5. Pressure block; 6. Fixed shell; 7. Heat dissipation hole; 8. Mounting shell; 9. Ventilation hole; 10. Push plate; 11. Spring; 12. Block; 13. Transformer; 14. Pin; 15. Fixed hole; 16. Fixed plate; 17. Fan. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Reference Figure 1-3 The utility model provides an embodiment: a long-life vehicle-mounted integrated transformer, including a circuit board 1, a transformer 13 is arranged at the top of the circuit board 1, a plurality of pins 14 are fixedly connected to the front and rear ends of the transformer 13, the bottom ends of the pins 14 are fixedly connected to the top of the circuit board 1, the front and rear sides of the top of the circuit board 1 are provided with fixing holes 15, a protective shell 4 is arranged at the top of the circuit board 1, the front and rear ends of the protective shell 4 are fixedly connected to the fixed shell 6, the inner wall of the fixed shell 6 is slidably connected to the pressure block 5, and the opposite end of the pressure block 5 is fixedly connected to the push plate 10 The outer wall of the push plate 10 is slidably connected to the inner wall of the fixed shell 6, and the opposite end of the push plate 10 is fixedly connected with a spring 11, and the other end of the spring 11 is fixedly connected to the outward end of the protective shell 4, and the outward end of the push plate 10 is fixedly connected with a card block 12, and the top of the card block 12 is arranged at the bottom of the circuit board 1, and the left and right ends of the protective shell 4 are threadedly connected with a threaded rod 3, and the outward end of the threaded rod 3 is fixedly connected with a handwheel 2, and the opposite end of the threaded rod 3 is fixedly connected with a fixed plate 16, and the opposite ends of the fixed plate 16 are respectively arranged at the left and right ends of the transformer 13;

[0024] Specifically, the transformer 13 is welded to the circuit board 1 through the pins 14, and then the pressure block 5 is pressed to make the push plate 10 squeeze the spring 11, and then the push plate 10 is inserted into the fixing hole 15 on the circuit board 1, and the pressure block 5 is released to allow the push plate 10 to reset under the elastic force of the spring 11, so that the clamping block 12 is clamped at the bottom end of the circuit board 1 to fix the protective shell 4 on the circuit board 1, and then the hand wheel 2 is turned to drive the threaded rod 3 to rotate and move the fixing plate 16 until the fixing plate 16 is attached to the surface of the transformer 13 to clamp it, so as to prevent the pin 14 from falling off the circuit board 1 when the vehicle shakes.

[0025] The top of the protective shell 4 is fixedly connected to a mounting shell 8, the inner wall of the mounting shell 8 is fixedly connected to a fan 17, a plurality of ventilation holes 9 are arranged at the top of the mounting shell 8, and a plurality of heat dissipation holes 7 are arranged at the right side of the top of the protective shell 4;

[0026] Specifically, the outside air is sent into the protective shell 4 through the fan 17 and the ventilation holes 9, and then the air in the protective shell 4 is discharged through the heat dissipation holes 7. The circulation formed helps to cool down the transformer 13 inside the protective shell 4, prevents damage caused by overheating, and can increase the service life of the transformer 13.

[0027] Working principle: The transformer 13 is welded to the circuit board 1 through the pin 14, and then the pressure block 5 is pressed to make the push plate 10 squeeze the spring 11, and then the push plate 10 is inserted into the fixing hole 15 on the circuit board 1, and the pressure block 5 is released to reset the push plate 10 under the elastic force of the spring 11, so that the clamping block 12 is stuck at the bottom of the circuit board 1 to fix the protective shell 4 on the circuit board 1, and then the hand wheel 2 is turned to drive the threaded rod 3 to rotate to move the fixing plate 16 until the fixing plate 16 fits on the surface of the transformer 13 to clamp it to prevent the pin 14 and the circuit board 1 from falling off when the vehicle shakes, and the outside air is sent into the protective shell 4 through the fan 17 and the ventilation hole 9, and then the air in the protective shell 4 is discharged through the heat dissipation hole 7, forming a circulation that helps to cool down the transformer 13 inside the protective shell 4, prevent damage caused by overheating, and can increase the service life of the transformer 13.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A long-life vehicle-mounted integrated transformer, comprising a circuit board (1), characterized in that: A transformer (13) is arranged at the top of the circuit board (1), and a plurality of pins (14) are fixedly connected to the front and rear ends of the transformer (13), and fixing holes (15) are arranged at the front and rear sides of the top of the circuit board (1). A protective shell (4) is arranged at the top of the circuit board (1), and the front and rear ends of the protective shell (4) are fixedly connected to a fixed shell (6), and the inner wall of the fixed shell (6) is slidably connected to a pressure block (5), and the opposite end of the pressure block (5) is fixedly connected to a push plate (10), and the opposite end of the push plate (10) is fixedly connected to a spring (11), and the outward end of the push plate (10) is fixedly connected to a clamping block (12), and the left and right ends of the protective shell (4) are connected to a fixing plate (16) through a clamping component, and the top of the protective shell (4) is connected to a ventilation hole (9) through a heat dissipation component.

2. The long-life vehicle-mounted integrated transformer according to claim 1, characterized in that: The clamping assembly comprises a threaded rod (3) threadedly connected at both left and right ends of the protective shell (4), the outward end of the threaded rod (3) is fixedly connected to a hand wheel (2), and the opposite end of the threaded rod (3) is fixedly connected to the outward end of the fixed plate (16).

3. The long-life vehicle-mounted integrated transformer according to claim 1, characterized in that: The heat dissipation assembly comprises a mounting shell (8) fixedly connected to the top of the protective shell (4); a fan (17) is fixedly connected to the inner wall of the mounting shell (8); the ventilation holes (9) are all arranged at the top of the mounting shell (8); and a plurality of heat dissipation holes (7) are arranged on the right side of the top of the protective shell (4).

4. The long-life vehicle-mounted integrated transformer according to claim 1, characterized in that: The bottom ends of the pins (14) are fixedly connected to the top end of the circuit board (1).

5. The long-life vehicle-mounted integrated transformer according to claim 1, characterized in that: The outer wall of the push plate (10) is slidably connected to the inner wall of the fixed shell (6), and the top of the clamping block (12) is arranged at the bottom end of the circuit board (1).

6. The long-life vehicle-mounted integrated transformer according to claim 1, characterized in that: The other end of the spring (11) is fixedly connected to the outward end of the protective shell (4).

7. The long-life vehicle-mounted integrated transformer according to claim 2, characterized in that: The opposite ends of the fixing plate (16) are respectively arranged at the left and right ends of the transformer (13).

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