Cyanide-free bonding safety circuit board

Abstract

The utility model relates to the technical field of circuit boards, in particular to a cyanide-free bonding safety circuit board which comprises a circuit board body, an annular extending edge is arranged on the peripheral side of the circuit board body, sliding groove openings are formed in the periphery of the extending edge, positioning assemblies are arranged in the sliding groove openings in a damping sliding mode, and a positioning plate is arranged on one side of the bottom end of each positioning assembly. Screw holes are formed in the two sides of the positioning plate, a sliding assembly is connected between the top of the positioning plate and the bottom end of the positioning assembly, an abutting assembly is movably installed on the side, close to the extending edge, of the positioning plate, and one side of the abutting assembly abuts against the edge of the outer side of the extending edge. According to the utility model, the installation position of the positioning plate can be adjusted, so that the screw holes on the positioning plate can be aligned with the positioning screw holes on the installation base plane, the abutting assembly can always elastically abut against the side wall of the extension edge, and the damping effect of the positioning assembly and the chute opening is cooperated, so that the shock strength of the circuit board can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, in particular to a cyanide-free bonding safety circuit board. Background Art

[0002] Bonding is a wire bonding method in the chip production process. It is generally used to connect the internal circuit of the chip with the package pin or the gold-plated copper foil of the circuit board with gold wire or aluminum wire before packaging. The ultrasonic wave from the ultrasonic generator (generally 40-140KHz) generates high-frequency vibration through the transducer and is transmitted to the splitter through the amplitude transformer. When the splitter contacts the lead and the welded part, under the action of pressure and vibration, the metal surfaces to be welded rub against each other, the oxide film is destroyed, and plastic deformation occurs, causing the two pure metal surfaces to be in close contact, achieving a combination of atomic distances, and finally forming a strong mechanical connection. The general bonding circuit board is polished and copper-plated with a cyanide-free copper plating brightener to optimize the copper plating to a cyanide-free bonding circuit board, thereby improving the wear resistance and corrosion resistance of the bonding circuit board.

[0003] The utility model with Chinese patent publication number CN217883936U discloses a cyanide-free bonding multilayer circuit board that is easy to position. The device mainly uses the friction between the circuit board and the rubber sheet to fix the hollow block and the solid block. The circuit board is easy to fall off in a vibrating environment. In addition, when the positioning plate is pulled, the fixing block and the circuit board will also cause relative displacement, affecting the positioning effect of the circuit board. Utility Model Content

[0004] The utility model aims to provide a cyanide-free bonding safety circuit board to solve the problems raised in the above-mentioned background technology.

[0005] The technical solution of the utility model is: a cyanide-free bonding safety circuit board, including a circuit board, a circular extension edge is arranged on the peripheral side of the circuit board, slide groove openings are opened on all four sides of the extension edge, a positioning component is arranged in the slide groove opening for damping sliding, a positioning plate is arranged on one side of the bottom end of the positioning component, screw holes are opened on both sides of the positioning plate, a sliding component is connected between the top of the positioning plate and the bottom end of the positioning component, a clamping component is movably installed on one side of the positioning plate close to the extension edge, and one side of the clamping component is in contact with the outer edge of the extension edge.

[0006] The effects achieved by the above-mentioned components are: the overall strength of the outer side of the circuit board can be increased by extending the edge, which facilitates the installation of the positioning component in the slide groove mouth, wherein the positioning component can move along the slide groove mouth away from the circuit board to adjust the installation position of the positioning plate to expand outward. In addition, the lateral installation position can be adjusted by pushing the positioning plate to move along the sliding component, which facilitates the alignment of the screw holes on the positioning plate with the positioning screw holes on the installation base surface, wherein the tightening component can always elastically contact the side wall of the extended edge, and cooperate with the damping effect of the positioning component and the slide groove mouth to effectively increase the seismic strength of the circuit board.

[0007] Preferably, the positioning assembly includes a top plate, a positioning column slidably inserted into the sliding groove mouth is fixed at the bottom of the top plate, a damping ring is embedded on the circumferential outer wall of the positioning column for damping sliding with the inner wall of the sliding groove mouth, a bending foot is fixed on one side of the top plate, and the sliding assembly is installed at the bottom of the bending foot.

[0008] The effect achieved by the above components is that the positioning column at the bottom of the top plate can be quickly slid into the slide groove, which is convenient for rapid assembly of the positioning plate. The damping effect generated by the damping ring and the slide groove can prevent the installed circuit board from shaking.

[0009] Preferably, the sliding assembly includes a guide groove opened at the bottom end of the bending foot, a sliding rod is fixed in the guide groove, two sliding blocks slidingly matched with the guide groove are slidably sleeved on the sliding rod, and the outer ends of the two sliding blocks are provided with limit springs sleeved on the sliding rod.

[0010] The effect achieved by the above components is: by pushing the positioning plate, it can move left and right along the guide groove and the slide rod, which is convenient for adjusting the installation position of the screw holes on the positioning plate. The limit spring can elastically limit the left and right position of the positioning plate to avoid shaking.

[0011] Preferably, the abutting assembly comprises a abutting strip abutting against the side wall of the extending edge, and an elastic telescopic member is fixed between the abutting strip and the side wall of the positioning plate.

[0012] The effect achieved by the above components is: the tightening strip can always contact the side wall of the extension side under the action of the elastic telescopic part, elastically support the side of the circuit board, and cooperate with the damping effect of the damping ring and the sliding groove to achieve the purpose of buffering and shock absorbing the side of the circuit board.

[0013] Preferably, the elastic telescopic part includes two guide rods fixed on one side of the clamping strip, the end of the guide rod away from the clamping strip passes through the outer wall of the positioning plate and is connected to a convex ring, the end of the guide rod close to the clamping strip is sleeved with a clamping spring, and one end of the clamping spring is in contact with the side wall of the positioning plate.

[0014] The effect achieved by the above components is that the guide rod and the tightening spring can elastically support and guide the tightening strip, so that the tightening strip always contacts the extended side wall.

[0015] The utility model provides a cyanide-free bonding safety circuit board through improvement, which has the following improvements and advantages compared with the prior art:

[0016] First, the utility model can increase the overall strength of the outer side of the circuit board by extending the edge, which is convenient for the positioning component to be installed in the slide slot, wherein the positioning component can move along the slide slot away from the circuit board to adjust the installation position of the positioning plate to expand outward, and can also adjust the lateral installation position by pushing the positioning plate to move along the sliding component, so as to facilitate the alignment of the screw hole on the positioning plate with the positioning screw hole on the installation base surface, wherein the tightening component can always elastically contact with the side wall of the extended edge, and cooperate with the damping effect of the positioning component and the slide slot, which can effectively increase the seismic strength of the circuit board;

[0017] Second, the utility model can always contact the side wall of the extension side through the tightening strip under the action of the elastic telescopic member, elastically support the side of the circuit board, and cooperate with the damping effect of the damping ring and the sliding groove to achieve the purpose of buffering and shock absorbing the side of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the first-view structure of the positioning component in the utility model;

[0021] Figure 3 This is a schematic diagram of the second viewing angle structure of the positioning component in the utility model;

[0022] Figure 4 It is a schematic diagram of the adjustment state of the positioning plate in the utility model.

[0023] Description of reference numerals:

[0024] 1. Circuit board; 2. Extended edge; 3. Slide groove; 4. Positioning assembly; 41. Top plate; 42. Bending foot; 43. Positioning column; 44. Damping ring; 5. Positioning plate; 6. Tightening assembly; 61. Tightening strip; 62. Guide rod; 63. Tightening spring; 64. Raised ring; 7. Screw hole; 8. Sliding assembly; 81. Guide groove; 82. Sliding block; 83. Limiting spring; 84. Sliding rod. DETAILED DESCRIPTION

[0025] The utility model is described in detail below, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0026] The utility model provides a cyanide-free bonding safety circuit board through improvement. The technical solution of the utility model is:

[0027] In the embodiments of the present invention, Figure 1-Figure 4 As shown, a cyanide-free bonding safety circuit board includes a circuit board 1, a circular extension edge 2 is arranged around the circuit board 1, and a slide groove 3 is opened around the extension edge 2. A positioning component 4 is arranged in the slide groove 3 for damping sliding. The extension edge 2 can increase the overall strength of the outer side of the circuit board 1, so that the positioning component 4 is conveniently installed in the slide groove 3, wherein the positioning component 4 can move along the slide groove 3 away from the circuit board 1 to adjust the installation position of the positioning plate 5 to expand outward, and a positioning plate 5 is arranged on one side of the bottom end of the positioning component 4, and screw holes 7 are opened on both sides of the positioning plate 5. A sliding component 8 is connected between the top of the positioning plate 5 and the bottom of the positioning component 4. A clamping component 6 is movably installed on one side of the positioning plate 5 close to the extended edge 2. One side of the clamping component 6 is in contact with the outer edge of the extended edge 2. The positioning plate 5 can also be pushed to move along the sliding component 8 to adjust the lateral installation position, so as to facilitate the alignment of the screw holes 7 on the positioning plate 5 with the positioning screw holes on the installation base surface. The clamping component 6 can always elastically contact with the side wall of the extended edge 2, and cooperate with the damping effect of the positioning component 4 and the slide groove mouth 3 to effectively increase the seismic strength of the circuit board 1.

[0028] In an embodiment of the utility model, the positioning assembly 4 includes a top plate 41, a positioning column 43 slidably inserted in the slide groove mouth 3 is fixed at the bottom of the top plate 41, a damping ring 44 for damping sliding with the inner wall of the slide groove mouth 3 is embedded on the circumferential outer wall of the positioning column 43, a bending foot 42 is fixed on one side of the top plate 41, and the sliding assembly 8 is installed at the bottom of the bending foot 42. The positioning column 43 at the bottom of the top plate 41 can be quickly slid into the slide groove mouth 3, which is convenient for rapid assembly of the positioning plate 5, wherein the damping effect generated by the damping ring 44 and the slide groove mouth 3 can prevent the installed circuit board 1 from shaking.

[0029] In an embodiment of the utility model, the sliding assembly 8 includes a guide groove 81 opened at the bottom end of the bending foot 42, a slide rod 84 is fixed in the guide groove 81, and two sliders 82 slidingly matched with the guide groove 81 are slidably sleeved on the slide rod 84. The outer ends of the two sliders 82 are provided with limit springs 83 sleeved on the slide rod 84. By pushing the positioning plate 5, it can move left and right along the guide groove 81 and the slide rod 84, which is convenient for adjusting the installation position of the screw hole 7 on the positioning plate 5. The limit spring 83 can be used to elastically limit the left and right position of the positioning plate 5 to avoid shaking.

[0030] In the embodiment of the utility model, the clamping assembly 6 includes a clamping strip 61 that contacts the side wall of the extended edge 2, and an elastic telescopic member is fixed between the clamping strip 61 and the side wall of the positioning plate 5. The clamping strip 61 can always contact the side wall of the extended edge 2 under the action of the elastic telescopic member, and elastically support the side of the circuit board 1, and cooperate with the damping effect of the damping ring 44 and the slide groove mouth 3 to achieve the purpose of buffering and shock absorbing the side of the circuit board 1. The elastic telescopic member includes two guide rods 62 fixed on one side of the clamping strip 61, and the end of the guide rod 62 away from the clamping strip 61 passes through the outer wall of the positioning plate 5 and is connected to a convex ring 64. The end of the guide rod 62 close to the clamping strip 61 is sleeved with a clamping spring 63, and one end of the clamping spring 63 contacts the side wall of the positioning plate 5. The guide rod 62 and the clamping spring 63 can elastically support and guide the clamping strip 61, so that the clamping strip 61 always contacts the side wall of the extended edge 2.

[0031] The working principle of a cyanide-free bonding safety circuit board provided by the utility model is as follows: the overall strength of the outer side of the circuit board 1 can be increased by extending the edge 2, and the positioning column 43 at the bottom of the board 41 can be quickly slid into the slide groove 3, which is convenient for quickly assembling the positioning plate 5, wherein the damping effect generated by the damping ring 44 and the slide groove 3 can prevent the installed circuit board 1 from shaking, and adjust the installation position of the positioning plate 5 expanding outward. In addition, the positioning plate 5 can be pushed to move left and right along the guide groove 81 and the slide rod 84, which is convenient for adjusting the installation position of the screw hole 7 on the positioning plate 5, wherein the limit spring 83 can be used to elastically limit the left and right positions of the positioning plate 5 to avoid shaking, and it is convenient to align the screw hole 7 on the positioning plate 5 with the positioning screw hole on the installation base surface, wherein the guide rod 62 and the tightening spring 63 can elastically support and guide the tightening strip 61, so that the tightening strip 61 always contacts the side wall of the extended edge 2, and cooperate with the damping effect of the positioning component 4 and the slide groove 3, which can effectively increase the seismic strength of the circuit board 1.

[0032] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cyanide-free bonding safety circuit board, comprising a circuit board (1), wherein the circuit board (1) is provided with an annular extension edge (2) on its circumference, characterized in that: The extended edge (2) is provided with a slide groove opening (3) on all sides, a positioning component (4) is provided in the slide groove opening (3) for damping sliding, a positioning plate (5) is provided on one side of the bottom end of the positioning component (4), screw holes (7) are provided on both sides of the positioning plate (5), a sliding component (8) is connected between the top of the positioning plate (5) and the bottom end of the positioning component (4), a clamping component (6) is movably installed on one side of the positioning plate (5) close to the extended edge (2), and one side of the clamping component (6) contacts the outer edge of the extended edge (2).

2. The cyanide-free bonding safety circuit board according to claim 1, characterized in that: The positioning assembly (4) comprises a top plate (41), a positioning column (43) slidably inserted into the slide groove (3) is fixed at the bottom of the top plate (41), a damping ring (44) for damping sliding with the inner wall of the slide groove (3) is embedded on the circumferential outer wall of the positioning column (43), a bending foot (42) is fixed on one side of the top plate (41), and the sliding assembly (8) is installed at the bottom of the bending foot (42).

3. A cyanide-free bonding safety circuit board according to claim 2, characterized in that: The sliding assembly (8) comprises a guide groove (81) provided at the bottom end of the bending foot (42), a slide rod (84) being fixed in the guide groove (81), two slide blocks (82) slidingly matched with the guide groove (81) being slidably sleeved on the slide rod (84), and a limit spring (83) sleeved on the slide rod (84) is provided at the outer ends of the two slide blocks (82).

4. The cyanide-free bonding safety circuit board according to claim 1, characterized in that: The abutting assembly (6) comprises a abutting strip (61) abutting against the side wall of the extending edge (2), and an elastic telescopic member is fixed between the abutting strip (61) and the side wall of the positioning plate (5).

5. The cyanide-free bonding safety circuit board according to claim 4, characterized in that: The elastic telescopic member comprises two guide rods (62) fixed on one side of the pressing strip (61); one end of the guide rod (62) away from the pressing strip (61) passes through the outer wall of the positioning plate (5) and is connected to a convex ring (64); one end of the guide rod (62) close to the pressing strip (61) is sleeved with a pressing spring (63); one end of the pressing spring (63) contacts the side wall of the positioning plate (5).

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