Anti-interference PCBA transformer

Abstract

The utility model relates to the field of transformers, in particular to an anti-interference PCBA transformer which comprises a shielding shell, heat dissipation fins, an assembly bottom plate, pins, a small transformer and the like, the shielding shell is clamped to the upper side of the assembly bottom plate, the heat dissipation fins are connected to the left side and the right side of the shielding shell respectively, and the front pin and the rear pin are connected to the lower sides of the left side and the right side of the assembly bottom plate respectively. The middle upper side of the assembly bottom plate is connected with a small transformer. According to the utility model, the shielding shell is clamped with or taken down from the assembly bottom plate, the fixing column is moved to be clamped and fixed with or separated from the clamping block to maintain or clean the small-sized transformer, then the small-sized transformer is electrified for use, external interference is shielded through the shielding shell, and heat dissipation fins and a heat dissipation fan are matched for heat dissipation, so that the heat dissipation efficiency is improved. Therefore, the shielding shell can be installed and fixed for anti-interference use, the small transformer is protected, meanwhile, heat dissipation is achieved, the small transformer is prevented from being damaged, the heat dissipation effect is good, the service life is prolonged, and maintenance and cleaning of the small transformer are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of transformer especially relates to an anti -interference type PCBA transformer. BACKGROUND

[0002] At the moment of electronic technology rapid development, small transformer as the core element of realizing voltage transformation, current isolation etc. Key function in electronic circuit is widely used in various electronic equipment, such as communication equipment, industrial control system, consumer electronics product etc., and its stable and reliable operation plays a vital role in guaranteeing the performance and life of the entire electronic equipment, PCBA transformer can be regarded as a kind of small transformer.

[0003] The small transformer is used, generally the pin of small transformer is contacted with circuit board, then welding is carried out, and then the small transformer is welded on the circuit board and is powered on and used, however, the current small transformer does not have protection function and poor heat dissipation effect, which can easily cause the small transformer to be damaged, shorten the service life and increase the maintenance cost, in addition, in the process of use, it is easy to be affected by electromagnetic interference generated by surrounding other electronic components.

[0004] Therefore, an anti-interference PCBA transformer capable of installing and fixing a shielding shell for anti-interference use and protecting the small transformer while dissipating heat, preventing the small transformer from being damaged, having good heat dissipation effect, prolonging the service life, and facilitating maintenance and cleaning of the small transformer is needed. UTILITY MODEL CONTENTS

[0005] In order to overcome the shortcomings of the current small transformer without protection function and poor heat dissipation effect, which can easily cause the small transformer to be damaged, shorten the service life and increase the maintenance cost, and in addition, in the process of use, it is easy to be affected by electromagnetic interference generated by surrounding other electronic components, the utility model provides an anti-interference PCBA transformer capable of installing and fixing a shielding shell for anti-interference use and protecting the small transformer while dissipating heat, preventing the small transformer from being damaged, having good heat dissipation effect, prolonging the service life, and facilitating maintenance and cleaning of the small transformer.

[0006] The technical implementation scheme of the utility model is: an anti-interference PCBA transformer, which comprises a shielding shell, a heat dissipation fin, an assembly base plate, a pin, a small transformer, a fixing assembly and a heat dissipation assembly, the shielding shell is clamped on the upper side of the assembly base plate, the heat dissipation fins are connected to the left and right sides of the shielding shell, the pins are connected to the lower sides of the left and right parts of the assembly base plate, the small transformer is connected to the upper side of the middle part of the assembly base plate, the fixing assembly is arranged between the assembly base plate and the shielding shell for fixing the shielding shell, and the heat dissipation assembly is arranged on the shielding shell for dissipating heat of the small transformer.

[0007] As the improvement of the above-mentioned scheme, the fixing assembly comprises clamping blocks, fixing blocks, springs and fixing columns, the assembling bottom plate is connected with two clamping blocks on the upper side of the front part, the shielding shell is connected with fixing blocks on the front side, the fixing blocks are slidably connected with fixing columns on the left and right sides, the fixing columns are connected with the clamping blocks on the same side, and the fixing columns are connected with the springs.

[0008] As the improvement of the above-mentioned scheme, the front side of the fixing block is provided with a sliding groove.

[0009] As the improvement of the above-mentioned scheme, the front side of the fixing column is provided with a handle.

[0010] As the improvement of the above-mentioned scheme, the heat dissipation assembly comprises heat dissipation blocks, a connecting frame, a filter screen and a connecting piece, the assembling bottom plate is connected with the connecting piece on the upper side of the rear part, the connecting frame is connected with the connecting piece on the front side of the upper part, the heat dissipation fan is rotatably arranged on the connecting frame, the connecting frame is connected with the heat dissipation blocks on the left and right sides, and the connecting frame is connected with the filter screen on the upper part.

[0011] As the improvement of the above-mentioned scheme, the connecting piece is L-shaped.

[0012] The utility model discloses a small transformer shielding shell and heat dissipation device, including shielding shell, heat dissipation fin, assembling bottom plate, clamping block, fixing block, spring, fixing column, heat dissipation block, connecting frame, filter screen, connecting piece and lead, the small transformer is installed in the shielding shell. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the three-dimensional structure schematic diagram of the utility model.

[0014] Figure 2 It is the three-dimensional structure schematic diagram of the connecting frame and other components of the utility model.

[0015] Figure 3 It is the three-dimensional structure schematic diagram of the lead and other components of the utility model.

[0016] Figure 4 It is the three-dimensional structure schematic diagram of the small transformer and other components of the utility model.

[0017] Figure 5 It is the three-dimensional structure cross section schematic diagram of the heat dissipation block and other components of the utility model.

[0018] Marked as in the drawing: 1-shielding shell, 2-heat dissipation fin, 3-assembling bottom plate, 4-clamping block, 5-fixing block, 6-spring, 7-fixing column, 8-heat dissipation block, 9-connecting frame, 10-filter screen, 11-connecting piece, 12-lead, 13-small transformer. Detailed Implementation

[0019] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0020] An anti-interference type PCBA transformer, such as Figures 1-5 As shown, the assembly includes a shielding shell 1, heat dissipation fins 2, an assembly base plate 3, pins 12, a small transformer 13, a fixing component, and a heat dissipation component. The shielding shell 1 is snapped onto the upper side of the assembly base plate 3. The heat dissipation fins 2 are connected to both the left and right sides of the shielding shell 1. The pins 12 are connected to the lower left and right sides of the assembly base plate 3. The small transformer 13 is connected to the upper middle part of the assembly base plate 3. A fixing component for fixing the shielding shell 1 is provided between the assembly base plate 3 and the shielding shell 1. A heat dissipation component for dissipating heat from the small transformer 13 is provided on the shielding shell 1.

[0021] like Figure 1 As shown, the fixing assembly includes a locking block 4, a fixing block 5, a spring 6, and a fixing post 7. The upper front part of the mounting base plate 3 is connected to two locking blocks 4 on the left and right sides. The front side of the shielding shell 1 is connected to the fixing block 5. The front side of the fixing block 5 has a sliding groove for easy movement. The left and right sides of the fixing block 5 are slidably connected to the fixing post 7. The fixing post 7 is engaged with the locking block 4 on the same side. The front side of the fixing post 7 is provided with a handle for easy gripping and pulling. The spring 6 is connected between the fixing posts 7.

[0022] like Figure 1 , Figure 2 and Figure 5 As shown, the heat dissipation assembly includes a heat sink 8, a connecting frame 9, a filter 10, and a connecting piece 11. The connecting piece 11 is connected to the upper rear side of the mounting base plate 3. The connecting piece 11 is L-shaped for easy support. The connecting frame 9 is connected to the upper front side of the connecting piece 11. A cooling fan is rotatably mounted on the connecting frame 9. The heat sink 8 is connected to both the left and right sides of the connecting frame 9. The filter 10 is connected to the upper part of the connecting frame 9.

[0023] When the PCBA transformer needs to be used, the device can be used, by pulling the handle and moving at the same time, so that the fixed column 7 moves along the sliding groove on the fixed block 5, the spring 6 is pressed, then the shielding shell 1 is clamped with the assembly bottom plate 3, and then the handle is released, the spring 6 rebounds, the fixed column 7 reversely moves and resets with the clamping block 4 clamped, thereby fixing the shielding shell 1, then the assembly bottom plate 3 is taken up, so that the pin 12 contacts the circuit board, then the pin 12 is welded on the circuit board, thereby the small transformer 13 is installed on the circuit board and powered on for use, during use, the shielding shell 1 shields external interference, the heat dissipation fin 2 dissipates heat, the heat dissipation fan on the connecting frame 9 on the connecting sheet 11 is started again, the connecting sheet 11 is L-shaped, convenient to support, the heat dissipation fan rotates to dissipate heat to the shell, at the same time, gas enters the heat dissipation block 8, air circulation is accelerated to dissipate heat to the heat dissipation fin 2, thereby dissipating heat to the small transformer 13, the filter screen 10 intercepts impurities, after use, the heat dissipation fan is turned off, when the small transformer 13 needs to be repaired or cleaned, the handle is pulled and moved at the same time, so that the fixed column 7 moves, the spring 6 is pressed, then the shielding shell 1 is removed, then the small transformer 13 is repaired and cleaned, then the above operation is repeated to install and use the shielding shell 1, so that the shielding shell 1 can be installed and fixed for anti-interference use and protection of the small transformer 13 while dissipating heat, preventing the small transformer 13 from being damaged, the heat dissipation effect is good, prolonging the service life, facilitating repair and cleaning of the small transformer 13, after repair and cleaning are completed, the device can be used again.

[0024] Although the present disclosure has been described only with respect to a limited number of embodiments, those skilled in the art who benefit from the present disclosure will understand that various other embodiments can be designed without departing from the scope of the present utility model. Therefore, the scope of the present utility model should be limited only by the appended claims.

Claims

1. An anti-interference PCBA transformer, characterized in that: The utility model relates to a small size transformer cooling device, including shielding shell (1), heat dissipation fin (2), assembly base plate (3), pin (12), small size transformer (13), fixed assembly and heat dissipation assembly, shielding shell (1) is clamped on assembly base plate (3) upside, and heat dissipation fin (2) is connected to shielding shell (1) left and right sides, and two pins (12) are connected to assembly base plate (3) left and right sides downside, and small size transformer (13) is connected to assembly base plate (3) middle upside, and fixed assembly for shielding shell (1) is equipped between assembly base plate (3) and shielding shell (1), and shielding shell (1) is equipped with heat dissipation assembly for small size transformer (13) cooling.

2. The anti-interference PCBA transformer according to claim 1, characterized in that: Fixed assembly includes clamping block (4), fixed block (5), spring (6) and fixed column (7), and assembly base plate (3) front upside is connected with left and right two clamping blocks (4), and shielding shell (1) front side is connected with fixed block (5), and fixed block (5) left and right sides are slidably connected with fixed column (7), and fixed column (7) is clamped with the clamping block (4) of same side, and spring (6) is connected between fixed column (7).

3. The anti-interference PCBA transformer according to claim 2, characterized in that: The front side of fixed block (5) is provided with a sliding slot.

4. The anti-interference PCBA transformer according to claim 2, characterized in that: The front side of fixed column (7) is provided with a handle.

5. The anti-interference PCBA transformer according to claim 1, characterized in that: Heat dissipation assembly includes heat dissipation block (8), connecting frame (9), filter screen (10) and connecting sheet (11), and assembly base plate (3) rear upside is connected with connecting sheet (11), and connecting sheet (11) upper side is connected with connecting frame (9), and connecting frame (9) is rotatably provided with heat dissipation fan, and connecting frame (9) left and right sides are connected with heat dissipation block (8), and connecting frame (9) upper side is connected with filter screen (10).

6. The anti-interference PCBA transformer according to claim 5, characterized in that: Connecting sheet (11) is L-shaped.

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