Double-sided circuit board with protective layer

Abstract

The utility model relates to the technical field of double-sided circuit boards, in particular to a double-sided circuit board with a protective layer, which comprises a circuit board body, the protective layer is coated on the circuit board body, two fixing strips are fixedly connected onto the circuit board body, a mounting frame is mounted outside the fixing strips, and the protective layer is arranged on the mounting frame. A first screw rod is rotatably connected to the interior of the mounting frame, two sliding blocks are in threaded connection to the first screw rod, sliding grooves are formed in the sliding blocks, sliding shafts are slidably connected to the interiors of the sliding grooves, two abutting blocks are slidably connected to the mounting frame, and the sliding shafts are fixedly connected to the abutting blocks; the first threaded rods on the two sides of the circuit board body are matched with the sliding blocks to drive the abutting blocks to abut against the shell, so that the circuit board body is rapidly fixed to the shell, direct punching on the circuit board body is avoided through matched arrangement of the fixing strips and the circuit board body, and damage to the circuit board body caused by repeated disassembly and assembly is avoided; meanwhile, the installation is more convenient and flexible.

Description

TECHNICAL FIELD

[0001] The utility model relates to a double -sided circuit board, concretely is a double -sided circuit board with protective layer belongs to double -sided circuit board technical field. BACKGROUND

[0002] The circuit board is the board for fixing electronic components and electrically connecting together in the electric appliance, before the appearance of printed circuit board, the interconnection between electronic components is all relied on the direct connection of electric wire and is composed complete line, at present, according to the number of layers of line board can be divided into single -sided board, double -sided board, four layer board, six layer board and other multilayer line board, usually circuit board is fixed in the shell of cabinet equipment when installing through screw, need to predrill positioning hole on circuit board and shell, ensure that screw can accurately pass through and fixed circuit board, then place circuit board on the shell and align positioning hole and use screw fixed.

[0003] However, due to the small volume of circuit board, the installation space is usually narrow, which makes the operation more inconvenient, and when screwing the screw, on the one hand, the screw must be tightened to fix the circuit board, and on the other hand, it cannot be overused to avoid damaging the circuit board or the shell, and the threaded hole is directly provided on the circuit board, and repeated disassembly and installation can cause damage to the threaded hole and the circuit board. UTILITY MODEL CONTENTS

[0004] The utility model discloses a double -sided circuit board with protective layer, through the first screw rod cooperation sliding block drive resistance block of both sides of circuit board body and the resistance of shell, thereby fast fixed circuit board body on the shell, and through the matching setting of fixed strip and circuit board body is exempted from direct drilling on circuit board body, avoid repeated disassembly and installation and cause circuit board body damage, make installation more convenient and flexible simultaneously.

[0005] The utility model discloses a double -sided circuit board with protective layer, through the first screw rod cooperation sliding block drive resistance block of both sides of circuit board body and the resistance of shell, thereby fast fixed circuit board body on the shell, and through the matching setting of fixed strip and circuit board body is exempted from direct drilling on circuit board body, avoid repeated disassembly and installation and cause circuit board body damage, make installation more convenient and flexible simultaneously.

[0006] Preferably, the threads of the first screw rod at both ends are oppositely arranged, and the sliding groove is inclined.

[0007] Preferably, the installation frame is fixedly connected with a guide rod, and the resistance block is slidably connected with the guide rod.

[0008] Preferably, the end of the first screw is provided with a groove, and the groove has a hexagonal structure.

[0009] Preferably, two heat dissipation fins are slidably connected inside the fixing strip, a second screw is rotatably connected to the mounting frame, the end of the second screw is threadedly connected to the fixing strip, and the end of the mounting frame abuts against the heat dissipation fins.

[0010] Preferably, the cross-section of the mounting frame facing the heat dissipation fins is Z-shaped, and the cross-section of the other end of the mounting frame is rectangular.

[0011] Preferably, the two ends of the heat dissipation fins are trapezoidal, and the slots on the fixing strip are trapezoidal.

[0012] Preferably, both sides of the circuit board body are coated with a protective layer, which is a conformal coating.

[0013] The beneficial effects of this utility model are as follows: Two fixing strips are fixedly connected to the circuit board body, and an installation frame is installed on the outside of the fixing strips. A first screw is rotatably connected inside the installation frame, and two sliders are threadedly connected to the first screw. A sliding groove is opened on the slider, and a sliding shaft is slidably connected in the sliding groove. Two abutments are slidably connected to the installation frame, and the sliding shaft is fixedly connected to the abutments. By using the first screws on both sides of the circuit board body in conjunction with the sliders to drive the abutments to press against the housing, the circuit board body is quickly fixed to the housing. Furthermore, the matching setting of the fixing strips and the circuit board body eliminates the need to directly drill holes in the circuit board body, avoiding damage to the circuit board body caused by repeated disassembly and installation, and making installation more convenient and flexible. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 for Figure 1 The diagram shown is an enlarged view of the structure of part A.

[0016] Figure 3 This is a schematic diagram of the connection structure between the mounting frame and the abutment block of this utility model;

[0017] Figure 4 for Figure 3 The diagram shown is an enlarged view of the structure of section B.

[0018] Figure 5 This is a schematic diagram of the connection structure between the mounting frame and the heat dissipation fins of this utility model.

[0019] Figure 6 for Figure 5 The diagram shows an enlarged view of section C.

[0020] In the figure: 1, the circuit board body; 2, the protective layer; 3, the heat dissipation fin; 4, the fixed bar; 5, the mounting frame; 6, the fixed structure; 601, the block; 602, the first screw; 603, the groove; 604, the sliding block; 605, the sliding slot; 606, the sliding shaft; 607, the guide rod; 7, the second screw. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer to Figures 1-6 As shown in the figure, a double-sided circuit board with a protective layer comprises a circuit board body 1, the circuit board body 1 is coated with a protective layer 2, two fixed bars 4 are fixedly connected to the circuit board body 1, a mounting frame 5 is mounted on the outside of the fixed bar 4, a fixed structure 6 is mounted in the mounting frame 5, the fixed structure 6 comprises a first screw 602, the first screw 602 is rotatably connected in the mounting frame 5, two sliding blocks 604 are threadedly connected to the first screw 602, a sliding slot 605 is formed in the sliding block 604, a sliding shaft 606 is slidably connected in the sliding slot 605, two blocks 601 are slidably connected to the mounting frame 5, the sliding shaft 606 is fixedly connected to the block 601, the threads at both ends of the first screw 602 are oppositely arranged, and the sliding slot 605 is obliquely arranged.

[0023] As a technical optimization scheme of the utility model, the mounting frame 5 is fixedly connected with a guide rod 607, and the block 601 is slidably connected to the guide rod 607. The guide rod 607 has a good guiding effect on the block 601, so that the sliding of the block 601 is more stable.

[0024] As a technical optimization scheme of the utility model, a groove 603 is formed in the end of the first screw 602, and the groove 603 has a hexagonal structure. The first screw 602 can be conveniently rotated by a hexagonal wrench.

[0025] As a technical optimization scheme of the utility model, two heat dissipation fins 3 are slidably connected in the fixed strip 4, a second screw rod 7 is rotatably connected on the mounting frame 5, the end of the second screw rod 7 is threadedly connected with the fixed strip 4, the end of the mounting frame 5 is in abutment with the heat dissipation fin 3, the cross section of one end of the mounting frame 5 towards the heat dissipation fin 3 is in Z-shaped structure, and the cross section of the other end of the mounting frame 5 is in rectangular structure; the two ends of the heat dissipation fin 3 are respectively aligned with the notches of the two fixed strips 4, the heat dissipation fin 3 is pushed into the notches, the heat dissipation fin 3 is quickly mounted on the circuit board body 1, the heat dissipation fin 3 dissipates the heat generated by the electronic components of the circuit board body 1 to the air through the heat conduction and convection, thereby improving the heat dissipation efficiency of the circuit board body 1, and further abutting the heat dissipation fin 3 by the end of the mounting frame 5 reinforces the installation of the heat dissipation fin 3.

[0026] As a technical optimization scheme of the utility model, the two ends of the heat dissipation fin 3 are in trapezoidal structure, and the notches on the fixed strip 4 are in trapezoidal structure; the stability of the installation of the heat dissipation fin 3 is improved.

[0027] As a technical optimization scheme of the utility model, the two surfaces of the circuit board body 1 are coated with a protective layer 2, and the protective layer 2 is three-proof paint; the two surfaces of the circuit board body 1 are coated with the protective layer 2 of three-proof paint, and the protective layer 2 plays a good role in moisture-proof, salt mist-proof and mildew-proof for the circuit board body 1.

[0028] The utility model discloses a circuit board body 1 is provided with the protection layer 2 of three -proof paint on both sides, and the protection layer 2 is provided with the good function of moisture-proof, salt fog -proof, mildew -proof etc., then the both ends of the heat dissipation fin 3 are respectively aligned with the notches of two fixed strips 4, and the heat dissipation fin 3 is pushed into the notches, so that the heat dissipation fin 3 is quickly installed on the circuit board body 1, and the heat dissipation fin 3 is in the form of heat conduction and convection to dissipate the heat generated by the electronic components of the circuit board body 1 to the air, thereby improving the heat dissipation efficiency of the circuit board body 1, and the both ends of the heat dissipation fin 3 are in trapezoidal structure, which can increase the stability of the heat dissipation fin 3, then the one end of the mounting frame 5 towards the heat dissipation fin 3 is sleeved on the outside of the fixed strip 4, then the second screw rod 7 is rotated on the mounting frame 5, and the end of the second screw rod 7 is screwed with the fixed strip 4, so that the mounting frame 5 and the fixed strip 4 are quickly fixed, and the second screw rod 7 is in contact with the mounting frame 5 to move downward and press the heat dissipation fin 3, thereby further fixing the heat dissipation fin 3, then the circuit board body 1 is placed in the shell of the cabinet and the like, the hexagonal spanner is inserted into the recess 603, then the hexagonal spanner is rotated, the hexagonal spanner drives the first screw rod 602 to rotate, the threads of the two ends of the first screw rod 602 are opposite, the first screw rod 602 is screwed to drive the two sliding blocks 604 to move in the opposite directions, the sliding block 604 drives the sliding shaft 606 to slide in the sliding groove 605, and the sliding shaft 606 slides to drive the abutting block 601 to slide to the outside of the mounting frame 5, so that the abutting block 601 is in contact with the inner wall of the shell, and then the abutting block 601 on both sides of the circuit board body 1 is in contact with the shell to quickly install the circuit board body 1 in the shell, which is simple and convenient to operate, has good stability, causes little damage to the circuit board body 1 and the shell, and is convenient to disassemble and install, and the setting of the guide rod 607 has a good guiding effect on the abutting block 601, so that the abutting block 601 slides more stably.

[0029] It will be apparent to those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments but that the utility model can be implemented in other concrete forms without departing from the spirit or essential characteristics of the utility model. The embodiments should, therefore, be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the above description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claim concerned.

[0030] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature described. The specification can include implicit combinations of explicitly mentioned features and / or explicit combinations of implicitely mentioned features. Each embodiment depends on the explicit combinations of features and / or the implicit combinations of features made specifically within that embodiment, and each such embodiment can be combined with every other such embodiment to create further embodiments.

Claims

1. A double-sided circuit board provided with a protective layer, comprising a circuit board body (1), characterized in that: The circuit board body (1) is coated with a protective layer (2), two fixed strips (4) are fixedly connected on the circuit board body (1), an installation frame (5) is installed on the outside of the fixed strip (4), a fixing structure (6) is installed in the installation frame (5), the fixing structure (6) comprises a first screw rod (602), the first screw rod (602) is rotatably connected in the installation frame (5), two sliding blocks (604) are threadedly connected on the first screw rod (602), a sliding groove (605) is formed in the sliding block (604), a sliding shaft (606) is slidably connected in the sliding groove (605), two abutting blocks (601) are slidably connected on the installation frame (5), and the sliding shaft (606) is fixedly connected to the abutting block (601).

2. The double-sided circuit board provided with a protective layer according to claim 1, characterized in that: The threads at both ends of the first screw rod (602) are oppositely arranged, and the sliding groove (605) is inclinedly arranged.

3. The double-sided circuit board with a protective layer according to claim 1, characterized in that: A guide rod (607) is fixedly connected on the installation frame (5), and the abutting block (601) is slidably connected to the guide rod (607).

4. The double-sided circuit board with a protective layer according to claim 2, characterized in that: A groove (603) is formed in the end of the first screw rod (602), and the groove (603) is a hexagonal structure.

5. The double-sided circuit board with a protective layer according to claim 1, characterized in that: Two heat dissipation fins (3) are slidably connected in the fixed strip (4), a second screw rod (7) is rotatably connected on the installation frame (5), the end of the second screw rod (7) is threadedly connected with the fixed strip (4), and the end of the installation frame (5) abuts against the heat dissipation fin (3).

6. The double-sided circuit board provided with a protective layer according to claim 5, characterized in that: The cross section of one end of the installation frame (5) towards the heat dissipation fin (3) is a "Z" shaped structure, and the cross section of the other end of the installation frame (5) is a rectangular structure.

7. The double-sided circuit board provided with a protective layer according to claim 6, characterized in that: The two ends of the heat dissipation fin (3) are trapezoidal structures, and the notch on the fixed strip (4) is a trapezoidal structure.

8. The double-sided circuit board with a protective layer according to claim 1, characterized in that: Both sides of the circuit board body (1) are coated with a protective layer (2), and the protective layer (2) is a three-proof paint.

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