TW202037766A - Pressurized water seal conductive clamp - Google Patents

Abstract

A pressurized water seal conductive clamp at least includes a first clamp arm, a second clamp arm, a first soft sealing member, a second soft sealing member, a pump group, and a plurality of hard protective sleeves. The opposite side surfaces of the first and second clamp arms respectively have a first bump and a second bump corresponding to the position of the clamping surface, and an opening hole is disposed through the first clamp arm on the first bump . The pump group connects to the opening hole in the first clamp arm to continuously pump air to the space between the first and second clamp arms. The first soft sealing member has a first hole corresponding to the positions of the first bump and the opening hole, and a plurality of first idle openings disposed two sides of the first hole respectively. The second soft sealing member has a second hole corresponding to the position of the second bump and a plurality of second idle openings disposed two sides of the second hole respectively. The hard-protective sleeves cover the surfaces of the first and the second clamp arms.

Description

Pressurized water seal conductive clamp

The invention relates to a processing equipment, and in particular to a pressurized water-sealed conductive clip.

In the printed circuit board (PCB) or other related industries, the development of electroplating technology continues to evolve with the needs of users, especially for the quality and output of the manufactured products, which often cannot be balanced.

Regarding the electroplating aspect of the PCB process, the larger the contact area of the pinch point of the required workpiece (ie, the product subject matter), the better, so the current method is to increase the holding area of the plated object and have good electroplating The liquid barrier effect causes the waste of the edge material of the product subject. At present, under actual mass production, it is found that if the clamp arm enters the electroplating solution, if the electroplating solution enters into contact with the bumps, the bumps will also be more or less plated with residual copper, resulting in poor quality. When it reaches a certain level, The residual copper must be removed manually by chemical cleaning (reverse plating), which will increase the cost in addition to increasing pollution.

In addition to electroplating technology, all equipment that requires conductive clips will also encounter the above technical problems.

The invention provides a pressurized water-sealed conductive clip, which can avoid or reduce the increase in pollution and the increase in cost in addition to reducing the waste of sideline material of the product target.

The pressurized water-sealed conductive clip of the present invention at least includes a first clamping arm, a second clamping arm, a first soft sealing element, a second soft sealing element, an inflatable component and several hard protective sleeves. The facing side surfaces of the first and second clamping arms respectively have first and second protrusions corresponding to the positions of the clamping surfaces. Moreover, the first clamping arm also has an opening disposed above the first protrusion and penetrating the first clamping arm. When the first clamping arm clamps a workpiece, the contact area of the first protrusion and the workpiece is smaller than the clamping surface of the first protrusion. When the second clamping arm clamps the workpiece, the contact area between the second protrusion and the workpiece is smaller than the clamping surface of the second protrusion. The inflatable component is connected to the opening in the first clamp arm to continuously inflate the space between the first clamp arm and the second clamp arm. The first soft sealing element has a first opening whose position is consistent with the first protrusion and the opening, and a plurality of first idle openings respectively located on both sides of the first opening, wherein the first opening covers the first opening The periphery of the bump communicates with the opening, and each of the first idle openings is arranged on the side surface of the first bump. The second soft sealing member has a second opening whose position matches the second protrusion and a plurality of second idle openings respectively located on both sides of the second opening, wherein the second opening covers the periphery of the second protrusion, And each of the second idle openings is arranged on the side surface of the second bump. The hard protective sleeve covers the surfaces of the first and second clamping arms.

In an embodiment of the present invention, the width of the clamping surface of the first protrusion is more than half of the width of the first clamping arm.

In an embodiment of the present invention, the width of the clamping surface of the second protrusion is more than half of the width of the second clamping arm.

In an embodiment of the present invention, the width of the part where the first protrusion is provided on the first clamping arm is larger than the width of the other parts.

In an embodiment of the present invention, the width of the part where the second protrusion is provided on the second clamping arm is larger than the width of the other parts.

In an embodiment of the present invention, the above-mentioned inflatable component includes an air storage tank, an air pipe and a pressurizing pump. The gas storage tank is formed on the other side surface of the first clamping arm, and the gas storage tank communicates with the opening and has an opening. The air pipe is connected with the opening, and the pressure pump is connected with the air pipe.

In an embodiment of the present invention, the above-mentioned inflatable assembly includes a trachea connected with the opening and a pressurizing pump connected with the trachea.

In an embodiment of the present invention, the contact area between the first bump and the workpiece is equal to or less than half, 1/3, or 2/3 of the clamping surface of the first bump.

In an embodiment of the present invention, the contact area between the second bump and the workpiece is equal to or less than half, 1/3, or 2/3 of the clamping surface of the second bump.

In an embodiment of the present invention, the number of the first idle openings is more than two.

In an embodiment of the present invention, the number of the above-mentioned second idle openings is more than two.

Based on the above, the present invention uses a sealing member with a specific structural design and an inflatable component, so that the plated object does not need to be completely clamped to the bump as in the past. Although the upper half of the bump does not clamp the plated object, it can be used The upper part of the soft seal is designed to be asymmetrical, so that the part above the soft seal can be tightly fitted, and the inflatable component continuously inflates the upper half of the bump without plating during the whole process, so that The pressure in this space is greater than the external pressure, so it can prevent the chemical liquid or other processing solutions from leaking from above or from the side to the bump sandwich surface as the electrode, resulting in the bumps being plated with residual copper and affecting the quality, and even manual The method uses chemical liquid cleaning (reverse plating method) to remove residual copper and other problems that increase pollution and cost. Moreover, soft seals (such as rubber) may also be plated with residual copper, so the idle openings designed on both sides of the bump can provide several soft spaces so that the infiltrated conductive liquid will not directly penetrate the conductive bump In addition to protecting the bump, it can also protect the soft part of the inner ring of the bump.

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail in conjunction with the accompanying drawings.

The following disclosure provides many different implementations or examples for implementing different features of the present invention. Of course, these embodiments are only examples, and are not intended to limit the scope and application of the present invention. Furthermore, for the sake of clarity, the relative thickness and position of each member, film layer or region may be reduced or enlarged. In addition, similar or identical element symbols are used in each of the drawings to indicate similar or identical elements or features, and if there are elements in the drawings that are the same as the previous figure, their description will be omitted.

Fig. 1 is a perspective view of a pressurized water-sealed conductive clip according to a first embodiment of the present invention when it is opened.

1, the pressurized water-seal conductive clip 100 in the embodiment at least includes a first clamping arm 102, a second clamping arm 104, a first soft sealing member 106, a second soft sealing member 108, a hard protective sleeve 110 and Inflatable component 112. In the text, "soft" and "hard" are relative terms; in detail, soft is a deformable material, hard is a non-deformable material, or a material with a lower amount of deformation than soft.

For the detailed structure of the first clamping arm 102, please refer to FIGS. 2 and 3. FIG. 2 is a partial enlarged view of the first clamping arm 102 of FIG. 1, and FIG. 3 is a longitudinal half-cut schematic diagram of FIG.

2 and 3, a side 102a of the first clamping arm 102 has a first protrusion 114, the first protrusion 114 has a clamping surface 114a and a side 114b, wherein the clamping surface 114a refers to the clamping workpiece (not shown) Shown), and the first bump 114 is a part of the first clamp arm 102, so its material is the same as that of the first clamp arm 102, such as stainless steel or other conductive materials. The first clamping arm 102 also has an opening 116 passing through the first clamping arm 102 above the first protrusion 114. The inflatable component 112 is connected to the opening 116 in the first clamp arm 102 to continuously inflate the space between the first clamp arm 102 and the second clamp arm. In this embodiment, the inflatable assembly 112 may include an air storage tank 118, a gas pipe (not shown), and a pressurizing pump (not shown), wherein the air storage tank 118 is formed in another part of the first clamp arm 102 A side surface 102b, and the gas storage tank 118 communicates with the opening 116, and has an opening (118a in FIG. 1). The remaining detailed structure will be described below. However, the present invention is not limited to this, and any structure that can continuously inflate the space between the first clamp arm 102 and the second clamp arm can be used as the inflatable component 112. The first flexible sealing member 106 has a first opening 106a whose position is consistent with the first protrusion 114 and the opening 116, and a first idle opening 106b located on both sides of the first opening 106a, wherein the first opening 106a covers The periphery of the first bump 114 communicates with the opening 116, and each first idle opening 106b is provided on the side 114b of the first bump 114 to prevent the chemical solution or other processing solution from infiltrating directly into the conductive In addition to protecting the first bump 114, the first bump 114 can also protect the soft part of the first opening 106a. In this embodiment, the number of the first idle opening 106b is two, but the present invention is not limited to this, the number of the first idle opening 106b can also be two or more, for example, there are two on both sides of the first opening 106a. The first idle opening 106b, so there are a total of 4 first idle openings 106b, and so on. The clamping surface 114a of the first bump 114 is slightly retracted in the first opening 106a, so that when the pressurized water-seal conductive clamp 100 clamps the workpiece, the first and second soft seals 106 and 108 can be tightly sealed The first bump 114 and the second bump. At the same time, the first idle opening 106b has a space to accommodate the infiltrated liquid medicine or other processing solutions. In this embodiment, the hard protective sleeve 110 covers the surface of the first clamping arm 102 close to the first protrusion 114, but the present invention is not limited to this, and the hard protective sleeve 110 can also extend to the first and The upper half of the second clamping arms 102 and 104. Moreover, the hard protective cover 110 can also integrally cover the first clamp arm 102 and the air storage groove 118 of the inflatable assembly 112 to fully protect the aforementioned structure.

Although FIGS. 2 and 3 show the first clamping arm 102, it should be understood that the structure of the second clamping arm 104 basically corresponds to that of the first clamping arm 102, but does not include the opening 116 and the inflatable component 112, see Figure 4 . For example, the side surface 104a of the second clamping arm 104 facing the first clamping arm 102 has a second protrusion 120, the second protrusion 120 has a clamping surface 120a and a side surface 120b, and the position of the clamping surface 120a of the second protrusion 120 corresponds to the first At the location of the clamping surface 114a of a bump 114, the second bump 120 is a part of the second clamping arm 104, so its material is the same as that of the second clamping arm 104, such as stainless steel or other conductive materials. The second soft seal 108 also has a second opening 108a whose position matches the second bump 120 and a second idle opening (not shown) located on both sides of the second opening 108a, wherein the second opening 108a covers the second opening 108a. The periphery of the bump 120, and each second idle opening is provided on the side surface of the second bump 120 to prevent the chemical solution or other processing solution from directly penetrating into the conductive second bump 120 from the side surface, in addition to protecting the second bump In addition to the bump 120, the soft part of the second opening 108a can also be protected. Similarly, the number of second idle openings is two, but the present invention is not limited to this. The number of second idle openings can also be two or more. For example, there are two second idle openings on both sides of the second opening 108a. So there are a total of 4 second idle openings, and so on. The hard protective cover 110 covers the surfaces of the first and second clamping arms 102 and 104.

In this embodiment, when the first and second clamping arms 102 and 104 clamp the workpiece 122, the workpiece 122 (the object to be plated) does not need to completely clamp the first and second bumps 114 and 120 (such as the first The contact area between a bump 114 and the workpiece 122 is smaller than the clamping surface 114a of the first bump 114, and the contact area between the second bump 120 and the workpiece 122 is smaller than the clamping surface 120a of the second bump 120), so the first and second The upper half of the bumps 114 and 120 does not clamp the workpiece 122. For example, the contact area between the first bump 114 and the workpiece 122 may be equal to or less than half, 1/3, or 2/3 of the clamping surface 114a of the first bump 114, but the invention is not limited thereto. Similarly, the contact area between the second bump 120 and the workpiece 122 is, for example, equal to or less than half, 1/3, or 2/3 of the clamping surface 120a of the second bump 120, but the present invention is not limited thereto. Once the workpiece 122 is clamped, the parts of the first and second clamping arms 102 and 104 that are in contact with the workpiece 122 (ie the first and second bumps 114/120) will closely fit the workpiece 122, the first and second The first and second soft seals 106/108 above the bumps 114/120 will adhere to each other and seal the upper edge of the workpiece 120, showing an asymmetric appearance. According to the past clamp, if clamped in this way, liquid will enter this space. However, the present invention uses an asymmetrical design on the upper part of the first and second soft seals 106 and 108, so that the upper soft seals (106 and 108) can be closely attached, and the inflatable component 112 is continuously used during the whole process. Inflate the space 124 without the workpiece 120, so that the pressure in the space 124 is greater than the external pressure, so that the above-mentioned liquid entry problem can be solved. To achieve the function of blocking the entry of liquid medicine from above, the side surfaces of the first and second bumps 114/120 have first and second idle openings to temporarily store the liquid medicine from the side, so it can effectively prevent the first One and the second bumps 114 and 120 are long copper.

To illustrate the exemplary structure and operation of the inflatable component of the first embodiment, please refer to FIG. 5.

Fig. 5 is a situation in which the first and second clamping arms 102 and 104 of Fig. 1 are opened, and the air pipe 126 of the inflatable assembly 112 is connected to the opening 118a of the air storage tank 118, and the pressure pump 128 is connected to the air pipe 126 Therefore, once the pressure pump 128 is pressurized by an external force, it will inflate between the first and second clamping arms 102 and 104. As for the pressurizing method of the pressurizing pump 128, the additional design of the processing equipment can be used. For example, a plurality of pressurizing blocks can be added continuously or at intervals in the transmission path of the pressurized water-sealed conductive clip 100 of the first embodiment. (Not shown), so that the inflatable assembly 112 can continuously inflate the space between the first clamp arm 102 and the second clamp arm during the transfer period of the pressurized water-sealed conductive clamp of FIG. 5 after clamping the workpiece, so that The pressure here is greater than the outside pressure. In addition, the pressurized water-sealed conductive clip 100 of FIG. 5 may be additionally provided with a transmission rod 130 and two movable brackets 132a and 132b connecting the first and second clamping arms 102 and 104 to the transmission rod 130. However, the present invention is not limited to this, and the remaining components in the pressurized water-sealed conductive clip 100 connected to the first and second clip arms 102 and 104 may also adopt other designs.

6 is a schematic cross-sectional view of a pressurized water-sealed conductive clamp holding a workpiece according to a second embodiment of the present invention, in which the same component symbols as in FIG. 4 are used to represent the same or similar components, and the same or similar The components can also refer to the first embodiment, and will not be repeated.

Please refer to FIG. 6, the difference between the second embodiment and the first embodiment is that the inflatable assembly 600 in the second embodiment does not have an air storage tank, but includes a trachea 602 connected to the opening 116 and a trachea 602 Connected to a pressurizing pump (126 in Figure 5). The inflatable assembly 600 can also continuously inflate the space 124 between the first clamping arm 102 and the second clamping arm 104, so that the pressure in the space 124 is greater than the external pressure, so it can achieve the function of blocking the entry of liquid medicine from above, so it can Effectively prevent the first and second bumps 114 and 120 from growing copper.

To sum up, the present invention does not need to clamp the bump completely like the traditional one, so the upper half of the bump does not clamp the plated material. According to the past clamp, if the workpiece is clamped in this way, liquid will enter. To solve the above situation, the present invention uses the upper part of the soft seal to match the inflatable component in an asymmetrical manner, so that the upper soft part can be closely attached, and the inflatable component continuously moves to the upper half of the bump during the entire process The non-plated space is inflated so that the pressure in the space is greater than the external pressure, so it can block the liquid from entering, and can simultaneously reduce the area of the ineffective area of the edge of the workpiece (board edge) and prevent the leakage of the liquid medicine or other treatment solutions to the electrode The clamping surface of the bumps will cause the bumps to be plated with residual copper and affect the quality. It is even necessary to manually clean the residual copper with a chemical solution (reverse plating) to remove the residual copper, which increases pollution and costs. Moreover, the idle openings designed on both sides of the bumps can provide several soft spaces so that the infiltrated conductive liquid will not directly penetrate the conductive bumps. In addition to protecting the bumps, it can also protect the softness of the inner ring of the bumps. section.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention shall be determined by the scope of the attached patent application.

100: Pressurized water seal conductive clip 102: first clamp arm 102a, 102b, 104a, 114b, 120b: side 104: second clamp arm 106: The first soft seal 106a: first opening 106b: The first idle opening 108: The second soft seal 108a: second opening 110: Hard protective sleeve 112, 600: Inflatable components 114: first bump 114a, 120a: sandwich surface 116: hole 118: gas storage tank 118a: opening 120: second bump 122: Workpiece 124: Space 126, 602: Trachea 128: air storage tank 130: Teleport Rod 132a, 132b: movable bracket

Fig. 1 is a perspective view of a pressurized water-sealed conductive clip according to a first embodiment of the present invention when it is opened. Fig. 2 is a partial enlarged view of the first clamping arm of Fig. 1. Fig. 3 is a longitudinal half-cut schematic diagram of Fig. 2. 4 is a schematic cross-sectional view of the pressurized water-sealed conductive clamp of FIG. 1 when clamping a workpiece. 5 is a perspective view of an application example of the pressurized water-sealed conductive clip of the first embodiment. Fig. 6 is a schematic cross-sectional view of a pressurized water-sealed conductive clamp clamping a workpiece according to a second embodiment of the present invention.

100: Pressurized water seal conductive clip

102: first clamp arm

104: second clamp arm

106: The first soft seal

108: The second soft seal

110: Hard protective sleeve

112: Inflatable components

118a: opening

Claims (11)

A pressurized water-sealed conductive clip, including: When a first clamping arm has a first protrusion and an opening disposed above the first protrusion and penetrating the first clamping arm, and the first clamping arm clamps a workpiece, The contact area between the first bump and the workpiece is smaller than the clamping surface of the first bump; A second clamping arm, a side surface facing the first clamping arm has a second protrusion, the clamping surface position of the second protrusion corresponds to the clamping surface position of the first protrusion, and When the second clamping arm clamps the workpiece, the contact area between the second protrusion and the workpiece is smaller than the clamping surface of the second protrusion; An inflatable component connected to the opening in the first clamp arm to continuously inflate the space between the first clamp arm and the second clamp arm; A first soft sealing element having a first opening in a position corresponding to the first protrusion and the opening, and a plurality of first idle openings respectively located on both sides of the first opening, wherein the first The opening covers the periphery of the first protrusion and communicates with the opening, and each of the first idle openings is provided on the side surface of the first protrusion; A second soft sealing element has a second opening in a position corresponding to the second protrusion and a plurality of second idle openings respectively located on both sides of the second opening, wherein the second opening covers the The periphery of the second bump, and each of the second idle openings is provided on the side surface of the second bump; and A plurality of hard protective sleeves respectively cover the surface of the first clamp arm and the surface of the second clamp arm. The pressurized water-sealed conductive clip according to the first item of the scope of patent application, wherein the width of the clamping surface of the first bump is more than half of the width of the first clamping arm. The pressurized water-sealed conductive clip according to the first item of the scope of patent application, wherein the width of the clamping surface of the second bump is more than half of the width of the second clamping arm. According to the pressurized water-sealed conductive clip according to the first item of the scope of patent application, the width of the part where the first protrusion is provided on the first clip arm is larger than the width of the other parts. According to the pressurized water-sealed conductive clip according to the first item of the scope of patent application, the width of the part where the second protrusion is provided on the second clip arm is larger than the width of the other parts. The pressurized water-sealed conductive clip as described in item 1 of the scope of patent application, wherein the inflatable component includes: An air storage tank is formed on the other side surface of the first clamping arm, and the air storage tank communicates with the opening and has an opening; A trachea connected to the opening; and A pressurizing pump is connected with the air pipe. The pressurized water-sealed conductive clip according to the first item of the scope of patent application, wherein the inflatable component includes: an air pipe connected to the opening and a pressurizing pump connected to the air pipe. The pressurized water-sealed conductive clip according to the first item of the scope of patent application, wherein the contact area between the first bump and the workpiece is equal to or less than half of the clamping surface of the first bump. /3 or 2/3. The pressurized water-sealed conductive clip described in the first item of the scope of patent application, wherein the contact area between the second bump and the workpiece is equal to or less than half of the clamping surface of the second bump, 1 /3 or 2/3. In the pressurized water-sealed conductive clip described in item 1 of the scope of patent application, the number of the first idle openings is more than two. The pressurized water-sealed conductive clip as described in item 1 of the scope of patent application, wherein the number of the second idle openings is 2 or more.

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