CN111647933B

CN111647933B - Asymmetric water seal conductive clamp

Info

Publication number: CN111647933B
Application number: CN201910288105.4A
Authority: CN
Inventors: 林文彬
Original assignee: SYNPOWER CO Ltd
Current assignee: SYNPOWER CO Ltd
Priority date: 2019-03-04
Filing date: 2019-04-11
Publication date: 2023-05-23
Anticipated expiration: 2039-04-11
Also published as: CN209974946U; TWI692551B; CN111647933A; TW202033836A

Abstract

The invention provides an asymmetric water seal conductive clip which at least comprises a first clamping arm, a second clamping arm, a first soft sealing piece, a second soft sealing piece and a plurality of hard protective sleeves. The opposite side surfaces of the first clamping arm and the second clamping arm are respectively provided with a first lug and a second lug which are corresponding to each other in clamping surface position. The first soft sealing piece is provided with a first opening which is matched with the first lug in position and a plurality of first idle openings which are respectively positioned at two sides of the first opening. The second soft sealing piece is provided with a second opening which is matched with the second lug in position and a plurality of second idle openings which are respectively positioned at two sides of the second opening. The hard protective sleeve covers the surfaces of the first clamping arm and the second clamping arm.

Description

Asymmetric water seal conductive clamp

Technical Field

The invention relates to processing equipment, in particular to an asymmetric water seal conductive clamp.

Background

In Printed Circuit Boards (PCBs) or other related industries, the development of electroplating technology is evolving with the needs of users, and especially for the quality of the manufactured products and the yield thereof, it is often impossible to achieve the same.

In terms of electroplating in PCB manufacturing, the larger the required contact area between the workpiece (i.e. the product object), the better the electroplating solution blocking effect is required to increase the clamping area of the object to be plated, resulting in waste of edge material of the product object. At present, it is found that if the clamp arm enters the plating solution in actual mass production, if the plating solution enters the bump, the bump is plated with residual copper more or less, so that the quality is poor, and when the quality reaches a certain degree, the residual copper must be removed by manually cleaning with chemical solution (reverse plating), so that the cost is increased in addition to the pollution.

In addition to electroplating technology, all devices requiring conductive clips suffer from the above technical problems.

Disclosure of Invention

The invention provides an asymmetric water seal conductive clamp, which can not only reduce the waste of edge materials of a product object, but also avoid or reduce the increase of pollution and the increase of cost.

The invention discloses an asymmetric water seal conductive clip, which at least comprises a first clamping arm, a second clamping arm, a first soft sealing piece, a second soft sealing piece and a plurality of hard protective sleeves. The opposite side surfaces of the first clamping arm and the second clamping arm are respectively provided with a first lug and a second lug which are corresponding to each other in clamping surface position. When the first clamping arm clamps a workpiece, the contact area of the first lug and the workpiece is smaller than the clamping surface of the first lug. When the second clamping arm clamps the workpiece, the contact area of the second lug and the workpiece is smaller than the clamping surface of the second lug. The first soft sealing piece is provided with a first opening and a plurality of first idle openings, wherein the first opening is positioned in line with the first bump, the first idle openings are respectively positioned at two sides of the first opening, the first openings cover the periphery of the first bump, and each first idle opening is arranged at the side face of the first bump. The second soft sealing piece is provided with a second opening and a plurality of second idle openings, the positions of the second openings are consistent with those of the second convex blocks, the second idle openings are respectively positioned at two sides of the second opening, the second openings cover the periphery of the second convex blocks, and each second idle opening is arranged on the side face of each second convex block. The hard protective sleeve covers the surfaces of the first clamping arm and the second clamping arm.

In an embodiment of the invention, a width of the clamping surface of the first bump is greater than half of a width of the first clamping arm.

In an embodiment of the invention, a width of the clamping surface of the second bump is greater than half of a width of the second clamping arm.

In an embodiment of the invention, a width of a portion of the first clip arm where the first bump is disposed is greater than a width of the remaining portion.

In an embodiment of the invention, a width of a portion of the second clip arm where the second bump is disposed is greater than a width of the remaining portion.

In an embodiment of the invention, a 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 invention, a 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 invention, the number of the first idle openings is above 2.

In an embodiment of the invention, the number of the second idle openings is above 2.

Based on the above, the sealing component with a specific structural design can prevent the liquid medicine or other treatment solution from leaking to the bump clamping surface serving as an electrode from above or from the side surface by tightly attaching the part above the soft sealing component in an asymmetric mode through the design mode even though the upper half part of the bump does not clamp the plated object under the condition that the plated object is required to be clamped and stuck with the bump completely unlike the prior art, so that the quality of the bump is affected by plating residual copper, and even the problem of pollution and cost increase caused by manually cleaning the residual copper with chemical liquid (reverse electroplating mode) is solved. In addition, the soft sealing element (such as rubber) may be plated with residual copper, so that the idle openings designed on two sides of the bump can provide a plurality of soft spaces, so that the permeated conductive liquid cannot directly permeate into the conductive bump, and the soft part of the inner ring of the bump can be protected besides the bump.

In order to make the above features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

Drawings

FIG. 1 is a schematic cross-sectional view of an asymmetric water seal conductive clip in accordance with an embodiment of the present invention;

FIG. 2A is an enlarged view of a portion of the first and second clamp arms of FIG. 1;

FIG. 2B is a front view of the first (or second) clamp arm of FIG. 2A;

fig. 3 is an enlarged partial perspective view of the first (or second) clamp arm of fig. 1.

Description of the reference numerals

100: asymmetric water seal conductive clamp

102: first clamping arm

102a, 104a: side (of arm-clip)

104: second clamping arm

106: first soft seal

106a: a first opening

106b: first idle opening

108: second soft seal

108a: a second opening

108b: second idle opening

110: hard protective sleeve

112: conveying rod

114a, 114b: elastic element

116: rotating shaft

118a, 118b: movable support

120: workpiece

122: first bump

122a, 124a: clamping surface

122b, 124b: side (of bump)

124: second bump

F: force of force

w1, w2, w3: width of (L)

Detailed Description

The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. These embodiments are, of course, merely examples and are not intended to limit the scope or application of the invention. Moreover, the relative thicknesses and locations of the various components, layers or regions may be reduced or exaggerated for clarity. In addition, similar or identical reference numerals are used to designate similar or identical elements or features in the drawings, and redundant description thereof will be omitted if the same reference numerals are used in the drawings as in the previous drawings.

Fig. 1 is a schematic cross-sectional view of an asymmetric water seal conductive clip according to an embodiment of the present invention.

Referring to fig. 1, an asymmetric water seal conductive clip 100 in the embodiment at least includes a first clip arm 102, a second clip arm 104, a first soft seal 106, a second soft seal 108, and a hard protective sleeve 110. The terms "soft" and "hard" are used interchangeably herein; in detail, the soft material is a deformable material, the hard material is a non-deformable material, or a material having a lower deformation amount than the soft material. In addition, the asymmetric water seal conductive clip 100 of the present embodiment may further include a transfer rod 112, two

elastic members

114a and 114b connected to the transfer rod 112 and the first and

second clip arms

102 and 104, respectively, and two

movable brackets

118a and 118b connected to the rotation shaft 116 on the transfer rod 112 from the first and

second clip arms

102 and 104, respectively. The first and second clamp

arms

102 and 104 are shown clamping a workpiece 120 such that the asymmetric water seal conductive clamp 100 opens when a force F is applied to the first and second clamp

arms

102 and 104. However, the present invention is not limited thereto, and other designs may be adopted for the remaining members of the asymmetric water seal conductive clip 100 connected to the first and

second clip arms

102 and 104.

Referring to fig. 2A and 2B for a detailed construction of the first and second clamp

arms

102 and 104, fig. 2A is an enlarged view of a portion of the first and second clamp

arms

102 and 104 of fig. 1. Fig. 2B is a front view of the first (or second) clamp arm of fig. 2A, and the first clamp arm 102 is taken herein as an example, and parts of the components are omitted for clarity of illustration.

Referring to fig. 2A and 2B, a side 102A of the first clamping arm 102 has a first bump 122, the first bump 122 has a clamping surface 122A and a side 122B, wherein the clamping surface 122A is a surface for clamping the workpiece 120, and the first bump 122 is a part of the first clamping arm 102, so that the material of the first bump is the same as that of the first clamping arm 102, such as stainless steel or other conductive materials. The second clamping arm 104 has a structure substantially corresponding to the first clamping arm 102, such as a side 104a opposite to the first clamping arm 102 has a second bump 124, the second bump 124 has a clamping surface 124a and a side 124b, the clamping surface 124a of the second bump 124 corresponds to the clamping surface 122a of the first bump 122, and the second bump 124 is a part of the second clamping arm 104, so that the material is the same as that of the second clamping arm 104, such as stainless steel or other conductive material.

The first soft sealing member 106 has a first opening 106a corresponding to the first bump 122 and first idle openings 106b located at two sides of the first opening 106a, wherein the first opening 106a covers the periphery of the first bump 122, and each first idle opening 106b is disposed on a side 122b of the first bump 122 to prevent the liquid medicine or other treatment solution from directly penetrating into the conductive first bump 122 from the side, so that the soft portion of the first opening 106a can be protected in addition to the first bump 122. The second soft sealing member 108 also has a second opening 108a corresponding to the second bump 124 and second idle openings 108b respectively located at two sides of the second opening 108a, wherein the second opening 108a covers the periphery of the second bump 124, and each second idle opening 108b is disposed on a side 124b of the second bump 124 to prevent the liquid medicine or other treatment solution from directly penetrating into the conductive second bump 124 from the side, so that the soft portion of the second opening 108a can be protected in addition to the second bump 124. In the present embodiment, the number of the first idle openings 106b is 2, but the present invention is not limited thereto, and the number of the first idle openings 106b may be more than 2, for example, there are 2 first idle openings 106b on two sides of the first opening 106a, so there are 4 first idle openings 106b in total, and so on. Similarly, the number of the second idle openings 108b is 2, but the present invention is not limited thereto, and the number of the second idle openings 108b may be more than 2, for example, there are 2 second idle openings 108b on two sides of the second opening 108a, so there are 4 second idle openings 108b in total, and so on. The hard boot 110 covers the surfaces of the first and second clamp

arms

102 and 104, see FIG. 2A. In the present embodiment, the hard protection sleeve 110 covers the surface of the first clamping arm 102 near the first bump 122 and the surface of the second clamping arm 104 near the second bump 124, but the invention is not limited thereto, and the hard protection sleeve 110 may extend to the surfaces of the first and second clamping

arms

102 and 104 near the

movable brackets

118a and 118b of fig. 1.

In this embodiment, when the first and second clamping

arms

102 and 104 clamp the workpiece 120, as shown in fig. 2A, the workpiece 120 (the workpiece) does not need to be completely clamped between the first and second protrusions 122 and 124 (e.g., the contact area between the first protrusion 122 and the workpiece 120 is smaller than the clamping surface 122A of the first protrusion 122, and the contact area between the second protrusion 124 and the workpiece 120 is smaller than the clamping surface 124a of the second protrusion 124), so that the upper half portions of the first and

second protrusions

122 and 124 do not clamp the workpiece 120. However, the present invention solves the above-mentioned problem of liquid ingress by providing an asymmetric design on the upper portions of the first and second

soft seals

106 and 108, so that the upper

soft seals

106 and 108 can be closely attached. For example, the contact area of the first bump 122 and the workpiece 120 may be equal to or less than half, 1/3 or 2/3 of the nip 122a of the first bump 122, but the invention is not limited thereto. Likewise, the contact area of the second bump 124 with the workpiece 120 is, for example, equal to or less than half, 1/3 or 2/3 of the nip 124a of the second bump 124, but the present invention is not limited thereto. Once the workpiece 120 is clamped, the parts (i.e., the first and second bumps 122/124) under the first and second clamp

arms

102 and 104 contacting the workpiece 120 are tightly adhered to the workpiece 120, the upper parts of the first and second bumps 122/124 are adhered to each other and seal the upper edge of the workpiece 120, so as to present an asymmetric appearance, thereby achieving the function of blocking the liquid medicine from entering from above, and the side surfaces 122b/124b of the first and second bumps 122/124 are provided with the first and second idle openings 106b/108b for temporarily storing the liquid medicine permeated from the side edges, so that the first and

second bumps

122 and 124 can be effectively prevented from growing copper.

With continued reference to fig. 2B, in the present embodiment, a width w1 of the clamping surface 122a of the first bump 122 is greater than half of a width w2 of the first clamping arm 102; the width w1 of the clamping surface 124a of the second bump 124 is greater than more than half the width w2 of the second clamping arm 104. Moreover, the width w2 of the portion of the first clamping arm 102 where the first bump 122 is provided may be greater than the width w3 of the rest portion; the width w2 of the second clip arm 104 where the second bump 124 is provided is greater than the width w3 of the remaining portion.

Fig. 3 is an enlarged perspective view of a portion of the first (or second) clamp arm 102 (or 104) of fig. 1, and fig. 3 is an open condition of the asymmetrical water seal conductive clamp, so that the clamping surface 122a of the first bump 122 is slightly retracted within the first opening 106a, and the clamping surface 124a of the second bump 124 is slightly retracted within the second opening 108a, so that the first and second

soft seals

106 and 108 can tightly seal the first and

second bumps

122 and 124 when the asymmetrical water seal conductive clamp clamps a workpiece. Meanwhile, the first and second

idle openings

106b and 108b have a space for accommodating the infiltrated medical fluid or other treatment solution.

In summary, the present invention does not need to completely clamp the bump as in the prior art, so that the upper half of the bump is free of the plated object, and if the workpiece is clamped by the conventional clamp, the liquid will enter, so as to solve the above-mentioned problems, the soft sealing element is designed to be asymmetric above, so that the soft part above can be tightly adhered to the soft sealing element, the liquid can be blocked from entering, the area of the ineffective area at the edge (edge of the plate) of the workpiece can be reduced, the leakage of the liquid medicine or other treatment solution to the clamping surface of the electrode bump can be prevented, the quality of the bump can be affected by plating residual copper, and even the pollution and cost are increased by manually cleaning the residual copper with chemical liquid (reverse plating method). And the idle openings designed on the two sides of the lug can provide a plurality of soft spaces, so that the permeated conductive liquid can not directly permeate into the conductive lug, and the soft part of the inner ring of the lug can be protected besides the lug.

Although the invention has been described with reference to the above embodiments, it should be understood that the invention is not limited thereto, but rather may be modified or altered somewhat by persons skilled in the art without departing from the spirit and scope of the invention.

Claims

1. An asymmetric water seal conductive clip comprising:

the side surface of the first clamping arm is provided with a first lug, and when the first clamping arm clamps a workpiece, the contact area of the first lug and the workpiece is smaller than the clamping surface of the first lug;

the second clamping arm is provided with a second lug on the side surface opposite to the first clamping arm, the clamping surface position of the second lug corresponds to the clamping surface position of the first lug, and when the second clamping arm clamps the workpiece, the contact area between the second lug and the workpiece is smaller than the clamping surface of the second lug;

the first soft sealing piece is provided with a first opening which is matched with the first lug in position and a plurality of first idle openings which are respectively positioned at two sides of the first opening, wherein the first opening covers the periphery of the first lug, and each first idle opening is arranged at the side face of the first lug;

the second soft sealing piece is provided with a second opening which is matched with the second lug in position and a plurality of second idle openings which are respectively positioned at two sides of the second opening, the second opening covers the periphery of the second lug, and each second idle opening is arranged at the side face of the second lug; and

and the plurality of hard protective sleeves respectively cover the surfaces of the first clamping arm and the second clamping arm.

2. The asymmetric water seal conductive clip of claim 1 in which the width of the clip face of the first bump is greater than more than half the width of the first clip arm.

3. The asymmetric water seal conductive clip of claim 1 in which the width of the clip face of the second bump is greater than more than half the width of the second clip arm.

4. The asymmetric water seal clip of claim 1, wherein a width of a portion of the first clip arm where the first bump is located is greater than a width of the remaining portion.

5. The asymmetric water seal clip of claim 1, wherein a width of a portion of the second clip arm where the second bump is provided is greater than a width of the remaining portion.

6. The asymmetric water seal conductive clip of claim 1 in which the contact area of the first bump with the workpiece is equal to or less than half, 1/3, or 2/3 of the clip face of the first bump.

7. The asymmetric water seal conductive clip of claim 1 in which the contact area of the second bump with the workpiece is equal to or less than half, 1/3, or 2/3 of the clip face of the second bump.

8. The asymmetric water seal clip of claim 1, wherein the number of first idle openings is above 2.

9. The asymmetric water seal clip of claim 1, wherein the number of second idle openings is above 2.