Electroplating hanger

Abstract

The utility model discloses a kind of electroplating hangers, it is related to electroplating equipment technical field.The electroplating hanger includes: suspension assembly, first fixed part and second fixed part;Above-mentioned suspension assembly includes electrically-conductive clamp and electrically-conductive hook;Above-mentioned electrically-conductive clamp is set to electrically-conductive hook inner side, and with electrically-conductive hook direct contact;Above-mentioned electrically-conductive clamp is used to hold cathode rod of electroplating equipment, lower end of above-mentioned electrically-conductive hook is electrically connected with above-mentioned second fixed part;Above-mentioned first fixed part and above-mentioned second fixed part between be provided with for accommodating the accommodating space of workpiece to be plated.It can improve the problem that cathode rod and electroplating hanger contact badly, heat loss is serious etc. during electroplating, avoid the problem that the thickness of electroplating layer is not uniform caused by uneven current, improve electroplating quality and the yield of electroplating workpiece.

Description

Technical Field

[0001] This utility model relates to the field of electroplating equipment technology, and in particular to an electroplating rack. Background Technology

[0002] Electroplating technology uses the principle of electrolysis to deposit a thin film of metal or other materials on the surface of an object to improve its properties. During the electroplating process, electroplating racks are used to suspend the workpiece in the electroplating tank for electroplating treatment.

[0003] Most current electroplating racks use screws to fix hooks and cathode rods of electroplating equipment. The contact area between the hook and the cathode rod is small, which may lead to problems such as poor hook contact and serious heat loss. At the same time, the small electrical contact area between the electroplating rack and the workpiece to be plated may also cause uneven current when electroplating workpieces with large surface areas, resulting in uneven plating thickness, affecting the electroplating quality of the workpiece and reducing the yield of electroplated workpieces. Utility Model Content

[0004] In view of this, the present invention provides an electroplating rack that can improve problems such as poor contact between the cathode rod and the electroplating rack and serious heat loss during the electroplating process, avoid the problem of uneven electroplating layer thickness caused by uneven current, and improve electroplating quality and the yield of electroplated workpieces.

[0005] To achieve the above objectives, according to one aspect of the present invention, an electroplating hanger is provided, comprising: a suspension assembly, a first fixing part, and a second fixing part;

[0006] The suspension assembly includes a conductive clip and a conductive hook; the conductive clip is disposed inside the conductive hook and is in direct contact with the conductive hook; the conductive clip is used to hold the cathode rod of the electroplating equipment, and the lower end of the conductive hook is electrically connected to the second fixing part.

[0007] A receiving space for accommodating the workpiece to be plated is provided between the first fixing part and the second fixing part.

[0008] Optionally, the conductive clip includes a U-shaped hook portion and a clamp;

[0009] The aforementioned clamp includes a first clamping piece and a second clamping piece, which are respectively disposed at both ends of the aforementioned U-shaped hook portion;

[0010] The first clamp and the second clamp cooperate to clamp the cathode rod of the electroplating equipment.

[0011] The outer side of the aforementioned U-shaped hook is in direct contact with the inner side of the aforementioned conductive hook, thus enabling electrical conduction.

[0012] Optionally, the second fixing part includes a second conductive sheet, a second conductive grid, and a second insulating frame;

[0013] The second insulating frame is disposed around the edge of the second conductive grid.

[0014] The second conductive sheet is disposed above the second insulating frame and is electrically connected to the second conductive grid and the conductive hook.

[0015] Optionally, the first fixing part includes a first conductive sheet, a first insulating frame, and a first conductive grid;

[0016] The first insulating frame is disposed around the edge of the first conductive grid.

[0017] The first conductive sheet is disposed above the first insulating frame and is electrically connected to the first conductive grid and the second conductive sheet.

[0018] Optionally, the side of the first fixing part where the first conductive grid is provided is close to the second conductive grid of the second fixing part, and the aforementioned accommodating space is formed between the first conductive grid and the second conductive grid.

[0019] Optionally, the first fixing part further includes: a first conductive wire disposed around the inner edge of the first insulating frame and electrically connected to the first conductive grid;

[0020] And / or,

[0021] The second fixing part further includes a second conductive wire disposed around the inner edge of the second insulating frame and electrically connected to the second conductive grid.

[0022] Optionally, for the structure in which the first fixing part includes the first conductive wire, the first insulating frame is further provided with a first groove for accommodating the first conductive wire, and the surface of the first conductive wire placed in the first groove is in contact with the surface of the first conductive grid.

[0023] For the structure in which the second fixing part includes the second conductive wire, the second insulating frame is further provided with a second groove for accommodating the second conductive wire, and the surface of the second conductive wire placed in the second groove is in contact with the surface of the second conductive grid.

[0024] Optionally, the first conductive sheet covers the upper edge of the first insulating frame and the first conductive grid;

[0025] And / or,

[0026] The second conductive sheet covers the upper edge of the second conductive grid and the second insulating frame.

[0027] Optionally, the second fixing part further includes a third conductive grid;

[0028] The second insulating frame is disposed around the edge of the third conductive grid, and the second conductive grid and the third conductive grid are disposed on both sides of the second insulating frame.

[0029] The second conductive sheet is electrically connected to the third conductive grid.

[0030] Accordingly, the number of the first fixing parts in the above-mentioned electroplating rack is two;

[0031] The two aforementioned first fixing parts are located on both sides of the aforementioned second fixing part.

[0032] Optionally, the second fixing part further includes: a third conductive wire surrounding the inner edge of the second insulating frame and electrically connected to the third conductive grid;

[0033] And / or,

[0034] The second conductive sheet covers the upper edges of the second conductive grid, the second insulating frame, and the third conductive grid;

[0035] And / or,

[0036] The first fixing part and the second fixing part are fastened together.

[0037] Optionally, for the structure in which the second fixing part includes the third conductive wire, the second insulating frame is further provided with a third groove for accommodating the third conductive wire, and the surface of the third conductive wire placed in the third groove is in contact with the surface of the third conductive grid.

[0038] One embodiment of the above-described utility model has the following advantages or beneficial effects: By setting a suspension assembly with conductive clips and conductive hooks, and using the conductive clips to hold the cathode rod of the electroplating equipment, surface contact conductivity between the suspension assembly and the cathode rod is achieved, increasing the contact area between them. This improves the problems of poor contact and severe heat loss caused by the small contact area between the hooks and cathode rods of existing electroplating racks. Furthermore, by placing the workpiece to be plated within the receiving space between the first and second fixing parts, the contact area between the workpiece and the electroplating rack is increased. Especially for large-area workpieces, this avoids the problem of uneven electroplating layer thickness caused by uneven current, thus improving electroplating quality and the yield of electroplated workpieces.

[0039] The further effects of the aforementioned unconventional alternative methods will be explained below in conjunction with specific implementation methods. Attached Figure Description

[0040] The accompanying drawings are provided to better understand this utility model and do not constitute an undue limitation thereof. Wherein:

[0041] Figure 1 This is a schematic diagram of the structure of the electroplating rack according to an embodiment of the present utility model;

[0042] Figure 2 This is an exploded view of the electroplating rack according to an embodiment of the present utility model;

[0043] Figure 3 This is a schematic diagram of the suspension assembly according to an embodiment of the present utility model;

[0044] Figure 4 This is an exploded view of the suspension assembly according to an embodiment of the present utility model;

[0045] Figure 5 This is a schematic diagram of the structure of the conductive clip according to an embodiment of the present utility model;

[0046] Figure 6 This is an exploded view of the first fixing part according to an embodiment of the present utility model;

[0047] Figure 7 This is a schematic diagram of the structure of the first fixing part according to an embodiment of the present utility model;

[0048] Figure 8 This is a schematic diagram of the structure of the first insulating frame according to an embodiment of the present utility model;

[0049] Figure 9 This is a longitudinal cross-sectional schematic diagram of the first conductive sheet according to an embodiment of the present utility model;

[0050] Figure 10 This is an exploded view of the second fixing part according to an embodiment of the present utility model;

[0051] Figure 11 This is a schematic diagram of the structure of the second fixing part according to an embodiment of the present utility model;

[0052] Figure 12 This is an exploded view of the second fixing part according to another embodiment of the present invention;

[0053] Figure 13 This is an exploded view of an electroplating rack according to another embodiment of the present invention;

[0054] Figure 14 This is a structural schematic diagram of an electroplating hanger according to another embodiment of the present utility model.

[0055] Figure label:

[0056] 1-Suspension assembly; 11-Conductive clip; 111-U-shaped hook; 112-Clamp; 1121-First clip; 1122-Second clip; 12-Conductive hook; 2-First fixing part; 21-First conductive sheet; 22-First insulating frame; 221-First groove; 222-Through hole; 23-First conductive wire; 24-First conductive grid; 3-Second fixing part; 31-Second conductive sheet; 32-Second conductive grid; 33-Second conductive wire; 34-Second insulating frame; 341-Second groove; 35-Third conductive wire; 36-Third conductive grid; 4-Accommodation space; 5-Fastener; 51-Fastening screw; 52-Nut. Detailed Implementation

[0057] The following description, in conjunction with the accompanying drawings, illustrates exemplary embodiments of the present invention, including various details to aid understanding. These embodiments should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0058] It should be noted that, where there is no conflict, the embodiments of this utility model and the technical features thereof can be combined with each other.

[0059] like Figure 1 and Figure 2 As shown, the electroplating rack of this embodiment includes: a suspension assembly 1, a first fixing part 2, and a second fixing part 3. During the electroplating process, the suspension assembly 1 suspends the electroplating rack, on which the workpiece to be plated is placed, in the electroplating tank of the electroplating equipment, and is electrically connected to the cathode rod of the electroplating equipment to introduce current into the electroplating rack, thereby facilitating the electroplating of the workpiece in the rack. The first fixing part 2 and the second fixing part 3 are used to fix the workpiece to be plated.

[0060] The number of suspension components 1 in the electroplating fixture can be set according to actual needs, and can be set to one or more.

[0061] like Figure 3 and Figure 4 As shown, the suspension assembly 1 includes a conductive clip 11 and a conductive hook 12. The conductive clip 11 is disposed inside the conductive hook 12 and is in direct contact with the conductive hook 12 to facilitate electrical conduction. The conductive clip 11 is used to hold the cathode rod of the electroplating equipment. During the electroplating process, the conductive clip 11 is electrically connected to the cathode rod and guides the current into the conductive hook 12, which is in direct contact with the conductive clip 11. The lower end of the conductive hook 12 is electrically connected to the second fixing part 3, which can further guide the current into the second fixing part 3.

[0062] like Figure 5 As shown, the conductive clip 11 includes a U-shaped hook portion 111 and a clamp 112. Optionally, the U-shaped hook portion 111 and the clamp 112 can be an integral structure.

[0063] During the use of the electroplating rack, the opening of the U-shaped hook portion 111 faces the first fixing portion 2 and the second fixing portion 3, thus presenting an inverted U-shape. The lower end of the U-shaped hook portion 111 curves inward and connects to the clamp 112. The top wall and side wall of the U-shaped hook portion 111 enclose a suspension space located inside the U-shaped hook portion 111. The upper part of the cathode rod is located within the suspension space, and its top surface abuts against the top of the U-shaped hook portion 111 to achieve the suspension of the electroplating rack.

[0064] The clamp 112 includes a first clamping piece 1121 and a second clamping piece 1122, which are respectively disposed at both ends of the U-shaped hook portion 111.

[0065] The first clamping piece 1121 and the second clamping piece 1122 cooperate to clamp the lower part of the cathode rod of the electroplating equipment. Specifically, the first clamping piece 1121 and the second clamping piece 1122 are correspondingly arranged, and the connection between the clamp 112 and the U-shaped hook portion 111 has the characteristic of slight deformation. The width of the clamping space between the first clamping piece 1121 and the second clamping piece 1122 for clamping the object is slightly smaller than the diameter of the cathode rod. This allows the cathode rod to slightly open the first clamping piece 1121 and the second clamping piece 1122 when the clamp 112 is clamping the lower part of the cathode rod. The slight deformation of the connection point enables a stable clamping without external force, avoiding the problem of the clamp 112 separating from the cathode rod during the electroplating process, which would affect the electroplating quality. At the same time, the first clip 1121 and the second clip 1122 are in direct contact with the cathode rod to achieve electrical conduction. Compared with the existing technology where the electroplating rack is only suspended from the cathode rod by a hook, this increases the contact area between the electroplating rack and the cathode rod, reduces the possibility of poor contact between the two, improves the defect of severe heat loss during the electroplating process due to the small contact area, and improves the electroplating quality.

[0066] Furthermore, the lower ends of the first clamping piece 1121 and the second clamping piece 1122 (i.e. the ends away from the U-shaped hook portion 111) expand outward, which facilitates the entry of the cathode rod with a diameter slightly larger than the width of the clamping space into the clamping space.

[0067] like Figures 1 to 4 As shown, the conductive hook 12 is inverted U-shaped. Furthermore, during the electroplating process, as... Figure 1 and Figure 2As shown, the opening of the conductive hook 12 faces the side of the first fixing part 2 and the second fixing part 3. One of the two side walls is shorter and its length is less than or equal to the side wall of the U-shaped hook part 111, and the other side wall is longer and extends downward, being electrically connected to the second fixing part 3, and its length is greater than the length of the conductive clip 11.

[0068] The outer side of the above-mentioned U-shaped hook part 111 is in direct contact with the inner side of the above-mentioned conductive hook 12 for electrical conduction. Specifically, the outer side of the top wall of the U-shaped hook part 111 is in direct contact with the inner side of the top wall of the conductive hook 12, and the outer sides of the two side walls of the U-shaped hook part 111 are in direct contact with the inner sides of the two side walls of the conductive hook 12, so that during the electroplating process, the current flows from the conductive clip 11 into the conductive hook 12 and then flows into the second fixing part 3 through the lower end of the conductive hook 12.

[0069] The conductive clip 11 and the conductive hook 12 adopt a separable modular design, which is convenient for maintenance and replacement.

[0070] In an optional embodiment, as Figure 2 shown, a receiving space 4 for accommodating the workpiece to be plated is provided between the above-mentioned first fixing part 2 and the above-mentioned second fixing part 3.

[0071] In an optional embodiment, as Figure 10 shown, the above-mentioned second fixing part 3 includes a second conductive sheet 31, a second conductive grid 32 and a second insulating frame 34. The second fixing part 3 assembled with the above-mentioned second conductive sheet 31, second conductive grid 32 and second insulating frame 34 is as Figure 11 shown.

[0072] Among them, as Figure 2 and Figure 10 shown, the above-mentioned second insulating frame 34 is a hollow "mouth" - shaped structure and surrounds the above-mentioned second conductive grid 32.

[0073] The edge part or all of the second conductive grid 32 covers the second insulating frame 34, that is, there is an overlapping area between the second conductive grid 32 and the second insulating frame 34 at the edge.

[0074] Optionally, the width of each side of the second insulating frame 34 is greater than or equal to 4 cm to avoid affecting the mechanical strength of the second insulating frame 34 due to too small width. As an example, the width of each side of the second insulating frame 34 can be 4 cm, 5 cm, 7 cm or 8 cm, etc. In addition, the second insulating frame 34 can be prepared from a material with a certain supporting force and meeting the mechanical strength requirements of the electroplating fixture design load, such as polytetrafluoroethylene, etc.

[0075] Optionally, the second fixing part 3 may further include a second conductive wire 33. Specifically, the second conductive wire 33 is disposed around the inner edge of the second insulating frame 34 and on the side of the second insulating frame 34 near the second conductive grid 32, so as to be electrically connected to the second conductive grid 32. During the electroplating process, the second conductive wire 33 can quickly guide the current into the second conductive grid 32 to which it is electrically connected. By providing the second conductive wire 33 electrically connected to the second conductive grid 32, on the one hand, the second conductive wire 33 forms a closed conductive loop along the inner edge of the second insulating frame 34, shortening the path of current flowing into the second conductive grid 32. The current can be synchronously conducted along the second conductive wire 33 to the center of the second conductive grid 32 to form a uniformly distributed current field, which is beneficial to improving the electroplating quality and can also reduce resistance and avoid the phenomenon of heat generation. On the other hand, when fastening the second fixing part 3, the gap between the second insulating frame 34 and the second conductive grid 32 can be compensated to disperse the pressure applied to the second conductive grid 32 and improve the stability of the second fixing part 3 after fastening.

[0076] Furthermore, such as Figure 10 As shown, the second insulating frame 34 is provided with a second groove 341 for accommodating the second conductive wire 33. By placing the second conductive wire 33 in the second groove 341, movement of the second conductive wire 33 during the electroplating process can be avoided, thus preventing it from affecting the electroplating quality.

[0077] Furthermore, the depth of the second groove 341 is less than the dimension of the second conductive wire 33 in the depth direction of the second groove 341 (for example, for a circular second conductive wire 33, the dimension of the second conductive wire 33 in the depth direction of the second groove 341 is its diameter), so that the second conductive wire 33 disposed in the second groove 341 protrudes from the surface of the second insulating frame 34. In addition, the side length of the shape formed by the second groove 341 (generally a rectangle or square, matching the shape of the second insulating frame 34) is slightly smaller than the side length of the corresponding second conductive grid 32, so that the second conductive wire 33 disposed in the second groove 341 can directly contact the second conductive grid 32, facilitating electrical conduction between the second conductive wire 33 and the second conductive grid 32.

[0078] The second conductive sheet 31 is disposed above the second insulating frame 34 and is electrically connected to the second conductive grid 32 and the conductive hook 12. It can also be electrically connected to the second conductive wire 33. Thus, the current transmitted by the conductive hook 12 can be conducted to the second conductive grid 32 through the second conductive sheet 31. The current is then quickly and evenly conducted to various positions of the second conductive grid 32 through the intersecting horizontal and vertical bars in the second conductive grid 32 and the second conductive wire 33 electrically connected to the second conductive grid 32, so as to improve the electroplating quality and the uniformity of the electroplated layer.

[0079] Furthermore, the second conductive sheet 31 covers the upper edges of the second conductive grid 32 and the second insulating frame 34, as well as the upper portion of the second conductive line 33. Specifically, the second conductive sheet 31 can be configured as an inverted U-shape to cover the upper edges of the second conductive grid 32 and the second insulating frame 34, as well as the upper portion of the second conductive line 33, and to conduct current to the second conductive grid 32.

[0080] The size of the second conductive grid 32 should be greater than or equal to the size of the workpiece to be plated, so as to completely cover the side of the workpiece to be plated near the second conductive grid 32, thereby improving the electroplating quality.

[0081] In one alternative embodiment, such as Figure 6 As shown, the first fixing part 2 includes a first conductive sheet 21, a first insulating frame 22, and a first conductive grid 24. The first fixing part 2 assembled using the first conductive sheet 21, the first insulating frame 22, and the first conductive grid 24 is as follows: Figure 7 As shown.

[0082] The first insulating frame 22 is a hollow "U"-shaped structure and is arranged around the edge of the first conductive grid 24. The first insulating frame 22 partially or completely covers the edge of the first conductive grid 24, that is, the first insulating frame 22 and the first conductive grid 24 have an overlapping area at the edge, and the width of the overlapping area can be set according to requirements.

[0083] Optionally, the width of each side of the first insulating frame 22 is greater than or equal to 4 cm to avoid affecting the mechanical strength of the first insulating frame 22 due to excessively small width. As an example, the width of each side of the first insulating frame 22 can be 4 cm, 5 cm, 6 cm, or 10 cm, etc. In addition, the first insulating frame 22 can be made of a material with sufficient mechanical strength to provide support and meet the design load requirements of the electroplating fixture, such as polytetrafluoroethylene (PTFE).

[0084] Optionally, the first fixing part 2 may further include a first conductive wire 23. Specifically, the first conductive wire 23 is disposed around the inner edge of the first insulating frame 22 and is electrically connected to the first conductive grid 24. Optionally, the first conductive grid 24 is disposed on one side of the first insulating frame 22 in the thickness direction; the first conductive wire 23 is disposed on the side of the first insulating frame 22 close to the first conductive grid 24, so as to be electrically connected to the first conductive grid 24. During the electroplating process, the first conductive wire 23 can quickly conduct current into the first conductive grid 24 to which it is electrically connected. By setting a first conductive line 23 electrically connected to the first conductive grid 24, on the one hand, the first conductive line 23 forms a closed conductive loop along the inner edge of the first insulating frame 22, shortening the path of current flowing into the first conductive grid 24. The current can be conducted synchronously to the center of the first conductive grid 24 along the first conductive line 23, forming a uniformly distributed current field, which is beneficial to improving the electroplating quality. At the same time, it can reduce resistance and avoid the phenomenon of heat generation. On the other hand, when fastening the first fixing part 2, it can compensate for the gap between the first insulating frame 22 and the first conductive grid 24, so as to disperse the pressure applied to the first conductive grid 24 and improve the stability of the first fixing part 2 after fastening.

[0085] Furthermore, such as Figure 8 As shown, the first insulating frame 22 is provided with a first groove 221 for accommodating the first conductive wire 23. The first groove 221 is located on the side of the first insulating frame 22 near the first conductive grid 24 in the thickness direction. By placing the first conductive wire 23 in the first groove 221, the movement of the first conductive wire 23 during the electroplating process can be avoided, thus preventing it from affecting the electroplating quality.

[0086] Furthermore, the depth of the first groove 221 is less than the dimension of the first conductive wire 23 in the depth direction of the first groove 221, so that the first conductive wire 23 disposed in the first groove 221 protrudes from the surface of the first insulating frame 22, and the side length of the shape formed by the first groove 221 (generally a rectangle or square, matching the shape of the first insulating frame 22) is slightly smaller than the side length of the corresponding first conductive grid 24, so that the first conductive wire 23 disposed in the first groove 221 can directly contact the first conductive grid 24, facilitating electrical conduction between the first conductive wire 23 and the first conductive grid 24.

[0087] The first conductive sheet 21 is disposed above the first insulating frame 22 and is electrically connected to the first conductive grid 24 and the second conductive sheet 31 of the second fixing part 3. It can also be electrically connected to the first conductive line 23. Thus, the current transmitted by the second conductive sheet 31 can be conducted to the first conductive grid 24 through the first conductive sheet 21. The current is then quickly and evenly conducted to each position of the first conductive grid 24 through the intersecting horizontal and vertical bars in the first conductive grid 24 and the first conductive line 23 electrically connected to the first conductive grid 24, so as to improve the electroplating quality and the uniformity of the electroplating layer.

[0088] Furthermore, the first conductive sheet 21 covers the upper edges of the first insulating frame 22 and the first conductive grid 24, as well as the upper portion of the first conductive line 23. Specifically, as... Figure 9 As shown, the first conductive sheet 21 can be configured as an inverted U-shape to cover the upper edge of the first insulating frame 22 and the first conductive grid 24, as well as the upper part of the first conductive line 23, and to conduct current to the first conductive grid 24.

[0089] The size of the first conductive grid 24 should be greater than or equal to the size of the workpiece to be plated, so as to completely cover the side of the workpiece to be plated near the first conductive grid 24, thereby improving the electroplating quality.

[0090] In an optional embodiment, the second fixing part 3 may further include a third conductive grid 36. For example... Figure 12 As shown, the second insulating frame 34 surrounds the edge of the third conductive grid 36. The second conductive grid 32 and the third conductive grid 36 are respectively disposed on both sides of the second insulating frame 34, that is, the second conductive grid 32 and the third conductive grid 36 are respectively disposed on both sides of the thickness direction of the second insulating frame 34.

[0091] The edge of the third conductive grid 36 may partially or completely cover the second insulating frame 34, meaning that the third conductive grid 36 and the second insulating frame 34 have overlapping areas at their edges. The width of the overlapping area between the second conductive grid 36 and the second insulating frame 34 at their edges may be the same as or different from the width of the overlapping area between the third conductive grid 36 and the second insulating frame 34, depending on the specific requirements.

[0092] Optionally, when the second fixing part 3 is provided with a third conductive grid 36, the second fixing part 3 may further include a third conductive wire 35. Specifically, the third conductive wire 35 is disposed around the inner edge of the second insulating frame 34, and is disposed on both sides of the second insulating frame 34, separate from the second conductive wire 33, that is, the second conductive wire 33 and the third conductive wire 35 are disposed on both sides in the thickness direction of the second insulating frame 34. The third conductive wire 35 may be disposed on the side of the second insulating frame 34 near the third conductive grid 36 for electrical connection with the third conductive grid 36. During the electroplating process, the third conductive line 35 can quickly guide the current into the third conductive grid 36, which is electrically connected to it. By setting the third conductive line 35 electrically connected to the third conductive grid 36, on the one hand, the third conductive line 35 forms a closed conductive loop along the inner edge of the second insulating frame 34, shortening the path of the current flowing into the third conductive grid 36. The current can be conducted synchronously along the third conductive line 35 to the center of the third conductive grid 36, forming a uniformly distributed current field, which is beneficial to improving the electroplating quality. At the same time, it can reduce resistance and avoid the phenomenon of heat generation. On the other hand, when fastening the second fixing part 3, it can compensate for the gap between the second insulating frame 34 and the third conductive grid 36, so as to disperse the pressure applied to the third conductive grid 36 and improve the stability of the second fixing part 3 after fastening.

[0093] Furthermore, the second insulating frame 34 is provided with a third groove for accommodating the third conductive wire 35, with the second groove 341 and the third groove located on opposite sides of the second insulating frame 34. By placing the third conductive wire 35 in the third groove, movement of the third conductive wire 35 during electroplating can be avoided, thus preventing it from affecting the electroplating quality.

[0094] Furthermore, the depth of the third groove is less than the dimension of the third conductive wire 35 in the depth direction of the third groove, so that the third conductive wire 35 disposed in the third groove protrudes from the surface of the second insulating frame 34. In addition, the side length of the shape formed by the third groove (matching the shape of the second insulating frame 34, generally rectangular or square) is slightly smaller than the side length of the corresponding third conductive grid 36, so that the third conductive wire 35 disposed in the third groove can directly contact the third conductive grid 36, facilitating electrical conduction between the third conductive wire 35 and the third conductive grid 36.

[0095] Furthermore, the second conductive sheet 31 is also electrically connected to the third conductive grid 36 and the third conductive line 35. This allows the current to be conducted to the third conductive grid 36 through the second conductive sheet 31, and the current is quickly and evenly conducted to various positions of the third conductive grid 36 through the intersecting horizontal and vertical bars in the third conductive grid 36 and the third conductive line 35 electrically connected to the third conductive grid 36, so as to improve the electroplating quality and the uniformity of the electroplated layer.

[0096] Furthermore, when the second fixing part 3 also includes a third conductive wire 35 and a third conductive grid 36, the second conductive sheet 31 can also cover the upper edge of the third conductive grid 36 and the upper portion of the third conductive wire 35. Specifically, similar to the first conductive sheet 21, the second conductive sheet 31 can also be configured as an inverted U-shape to cover the upper edges of the second conductive grid 32, the second insulating frame 34, and the third conductive grid 36, as well as the upper portions of the third conductive wire 35 and the second conductive wire 33, and to conduct current to the second conductive grid 32 and the third conductive grid 36.

[0097] In one alternative embodiment, such as Figure 13 As shown, there are two first fixing parts 2; the two first fixing parts 2 are respectively disposed on both sides of the second fixing part 3. The structure of the electroplating fixture assembled with the second fixing part 3 and the two first fixing parts 2 can be as follows: Figure 14 As shown. To improve electroplating efficiency, the electroplating rack of this embodiment can electroplat two workpieces simultaneously. Specifically, by setting a third conductive line 35 and a third conductive grid 36 on the side of the second insulating frame 34 away from the second conductive line 33, first fixing parts 2 can be set on both sides of the second fixing part 3, and the workpieces to be plated can be respectively set between the first first fixing part 2 and the second fixing part 3, and between the second first fixing part 2 and the second fixing part 3, thereby solving the problem that the electroplating rack in the prior art can only electroplat one workpiece at a time. Specifically, the first fixing part 2 set on the side of the third conductive grid 36 of the second fixing part 3 has a receiving space 4 between the first conductive grid 24 and the third conductive grid 36 for accommodating the workpiece to be plated.

[0098] In this case, the size of the third conductive grid 36 should be greater than or equal to the size of the workpiece to be plated, so as to completely cover the side of the workpiece to be plated near the third conductive grid 36, thereby improving the electroplating quality.

[0099] It should be noted that the third conductive wire 35 and the third conductive grid 36 in the second fixing part 3 are provided to facilitate the setting of a second first fixing part 2 on the side of the second fixing part 3 where the third conductive grid 36 is provided. This allows for the placement of a second workpiece to be plated between the second fixing part 3 and the second first fixing part 2, thereby making the electroplating fixture of this embodiment suitable for electroplating multiple workpieces simultaneously, thus improving electroplating efficiency. If another first fixing part 2 is not required, the third conductive wire 35 and the third conductive grid 36 may not be provided in the second fixing part 3. Furthermore, in this case, the third groove may not be provided on the side of the second insulating frame 34 where the third conductive grid 36 is provided. In other words, the third conductive wire 35, the third conductive grid 36, and the third groove in the second fixing part 3 can be determined as needed.

[0100] In one alternative embodiment, such as Figure 2 As shown, the first fixing part 2 has a first conductive grid 24 on one side that is close to the second conductive grid 32 of the second fixing part 3. The first conductive grid 24 and the second conductive grid 32 form the receiving space 4, so that one side of the workpiece to be plated is close to the first conductive grid 24 of the first fixing part 2, and the other side is close to the second conductive grid 32 of the second fixing part 3, which can greatly improve the uniformity of electroplating. Furthermore, by using two conductive grids to fix the workpiece to be plated, deformation of the workpiece during the electroplating process can be effectively prevented, improving the yield of the electroplated workpiece.

[0101] like Figure 13 As shown, the second fixing part 2 is further provided with a third conductive wire 35 and a third conductive grid 36. When there are two first fixing parts 2, the first fixing part 2 located on one side of the third conductive grid 36 has its side with the first conductive grid 24 close to the third conductive grid 36. A receiving space 4 is formed between the first conductive grid 24 and the third conductive grid 36 for placing the workpiece to be plated. This ensures that one side of the workpiece is close to the first conductive grid 24 of the first fixing part 2, and the other side is close to the third conductive grid 36 of the second fixing part 3, which greatly improves the uniformity of electroplating. Furthermore, by using two conductive grids to fix the workpiece, deformation of the workpiece during electroplating can be effectively prevented, improving the yield of the electroplated workpiece.

[0102] In one optional embodiment, the first fixing part 2 and the second fixing part 3 are fastened together. Specifically, as shown... Figure 2 and Figure 13As shown, a plurality of through holes 222 can be correspondingly provided on the first insulating frame 22 of the first fixing part 2 and the second insulating frame 34 of the second fixing part 3. The first fixing part 2 and the second fixing part 3 are fastened together by a plurality of fasteners 5 and the plurality of through holes 222, facilitating the disassembly and assembly of the first fixing part 2 and the second fixing part 3. The position of the through holes 222 should avoid coinciding with the positions of the first groove 221, the second groove 341, and the third groove. They can be positioned 1cm-3cm from the outer edge of the first insulating frame 22 and the second insulating frame 34. For example, the through holes 222 can be positioned at a distance of 1cm, 1.5cm, 2cm, 2.5cm, or 3cm from the outer edge of the first insulating frame 22 and the second insulating frame 34.

[0103] Furthermore, through holes 222 can be provided on all four sides of the first insulating frame 22 and the second insulating frame 34, and through holes 222 can also be provided at the corresponding positions of the first conductive sheet 21 and the second conductive sheet 31.

[0104] The fastener 5 may include a screw 51, a nut 52, and a washer. Optionally, the fastener 5 may be made of a material such as polytetrafluoroethylene (PTFE) that has the mechanical strength to meet the design load requirements of the electroplating fixture and is also insulating, which can solve the problem in the prior art where the use of metal parts for fastening makes it difficult to disassemble the metal parts after electroplating.

[0105] In an optional embodiment, the lower end of the conductive hook 12 is electrically connected to the second conductive sheet 31, so that current can be introduced into the second fixing part 3 through the second conductive sheet 31. The connection between the conductive hook 12 and the second conductive sheet 31 can be achieved by fastening with fasteners 5, welding, or integral molding.

[0106] The first conductive sheet 21 and the second conductive sheet 31 are electrically connected so that the second conductive sheet 31 can conduct current into the first fixing part 2 through the first conductive sheet 21.

[0107] In an optional embodiment, the suspension assembly 1, the first conductive sheet 21, the first conductive wire 23 and the first conductive grid 24 of the first fixing part 2, and the second conductive sheet 31, the second conductive wire 33, the third conductive wire 35, the second conductive grid 32 and the third conductive grid 36 of the second fixing part 3 can all be made of pure metal materials or alloys with good conductivity, such as pure copper, titanium or stainless steel.

[0108] It is understandable that the outer width, inner width, and thickness of the first insulating frame 22, the size of the first conductive grid 24, the depth and width of the first groove 221, the diameter of the first conductive wire 23, the number of through holes 222 on each side of the first insulating frame 22, the diameter of each through hole 222, and the spacing between adjacent through holes 222 can all be set according to actual needs, and are not limited here. As an example, when the size of the workpiece to be plated is 200 cm × 200 cm, the size of the first conductive grid 24 can be 200 cm × 200 cm, the first conductive wire 23 can be a copper wire with a diameter of 3 mm, the outer width of the first insulating frame 22 can be 202 cm × 202 cm, the inner width can be 194 cm × 194 cm, and the thickness can be 10 mm, the first groove 221 can be set 3 cm away from the outer edge of the first insulating frame 22, with a depth of 2 mm and a width of 3 mm, and 4 through holes 222 can be set on each side of the first insulating frame 22, each through hole 222 is 1 cm away from the outer edge, the spacing between adjacent holes can be 50 cm, and the diameter of each through hole 222 can be 1 cm.

[0109] Similarly, the outer width, inner width, and thickness of the second insulating frame 34, the dimensions of the second conductive grid 32 and the third conductive grid 36, the depth and width of the second groove 341 and the third groove, the diameter of the second conductive wire 33 and the third conductive wire 35, the number of through holes on each side of the second insulating frame 34, the diameter of each through hole, and the spacing between adjacent through holes can all be set according to actual needs, and are not limited here.

[0110] The electroplating fixture of this utility model embodiment is suitable for electroplating metal meshes, metal sheets, and battery cells, especially for electroplating large-area metal meshes, large-area metal sheets, and large-area battery cells, and can effectively solve the problem of uneven electroplating of large-area metal meshes, large-area metal sheets, and large-area battery cells. Furthermore, the shape of the workpiece to be plated is not limited to squares, rectangles, etc., but can also be other shapes. Correspondingly, the shapes of the first insulating frame 22, the first conductive grid 24, the second insulating frame 34, the second conductive grid 32, and the third conductive grid 36 are also not limited to squares, rectangles, etc., and can also be other shapes.

[0111] In the use of the electroplating rack in this embodiment of the utility model, the workpiece to be plated can be placed between the first fixing part 2 and the second fixing part 3 and fastened with fasteners 5. The conductive clip 11 is placed inside the conductive hook 12 to form a suspension assembly 1. The conductive clip 11 is used to hold the cathode rod of the electroplating equipment. The electroplating rack with the workpiece to be plated is suspended in the electroplating tank of the electroplating equipment by a gantry hoisting method through the suspension assembly 1. Then, electroplating begins. The current flows along the cathode rod into the conductive clip 11 that holds the cathode rod, and flows into the second conductive sheet 31 through the conductive hook 12. While flowing through the second conductive sheet 31 into the second conductive grid 32 and the third conductive grid 36, the current flows evenly to each position of the second conductive grid 32 and the third conductive grid 36 through the second conductive line 33 and the third conductive line 35. At the same time, the current flows through the second conductive sheet 31 into the first conductive sheet 21, and then into the first conductive grid 24 through the first conductive sheet 21. The current flows to each position of the first conductive grid 24 through the first conductive line 23, so as to improve the uniformity of electroplating.

[0112] The electroplating rack of this embodiment of the invention, by setting a suspension assembly 1 with conductive clips 11 and conductive hooks 12, uses the conductive clips 11 to hold the cathode rod of the electroplating equipment, achieving surface contact conductivity between the suspension assembly 1 and the cathode rod, increasing the contact area between them, and improving the problems of poor contact and serious heat loss caused by the small contact area between the hook and the cathode rod in the prior art. In addition, by placing the workpiece to be plated in the receiving space 4 between the first fixing part 2 and the second fixing part 3, the contact area between the workpiece to be plated and the electroplating rack is increased. Especially for large-area workpieces to be plated, it can avoid the problem of uneven electroplating layer thickness caused by uneven current, thereby improving the electroplating quality and the yield of electroplated workpieces.

[0113] This utility model embodiment also provides an electroplating device, including any of the electroplating fixtures described in this utility model embodiment. The electroplating fixture includes: a suspension assembly 1, a first fixing part 2, and a second fixing part 3; the suspension assembly 1 includes a conductive clip 11 and a conductive hook 12; the conductive clip 11 is disposed inside the conductive hook 12 and in direct contact with the conductive hook 12; the conductive clip 11 is used to clamp the cathode rod of the electroplating device; the lower end of the conductive hook 12 is electrically connected to the second fixing part 3; a receiving space 4 for accommodating the workpiece to be plated is provided between the first fixing part 2 and the second fixing part 3.

[0114] The electroplating equipment of this embodiment employs an electroplating rack including a first fixing part 2, a second fixing part 3, and a suspension assembly 1. The cathode rod of the electroplating equipment is held in place by the conductive clamp 11 of the suspension assembly 1, achieving surface contact conductivity between the suspension assembly 1 and the cathode rod. This increases the contact area between them and improves upon the problems of poor contact and severe heat loss caused by the small contact area between the hook and the cathode rod in existing electroplating racks. Furthermore, by placing the workpiece to be plated within the receiving space 4 between the first fixing part 2 and the second fixing part 3, the contact area between the workpiece and the electroplating rack is increased. Especially for large-area workpieces, this avoids the problem of uneven electroplating layer thickness caused by uneven current, thus improving electroplating quality and the yield of electroplated workpieces.

[0115] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can occur depending on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An electroplating rack, characterized in that, include: Suspension assembly (1), first fixing part (2), and second fixing part (3); The suspension assembly (1) includes a conductive clip (11) and a conductive hook (12); the conductive clip (11) is disposed inside the conductive hook (12) and is in direct contact with the conductive hook (12); the conductive clip (11) is used to hold the cathode rod of the electroplating equipment, and the lower end of the conductive hook (12) is electrically connected to the second fixing part (3); A receiving space (4) for accommodating the workpiece to be plated is provided between the first fixing part (2) and the second fixing part (3).

2. The electroplating rack according to claim 1, characterized in that, The conductive clip (11) includes a U-shaped hook portion (111) and a clamp (112). The clamp (112) includes a first clamping piece (1121) and a second clamping piece (1122), which are respectively disposed at both ends of the U-shaped hook portion (111); The first clamping piece (1121) and the second clamping piece (1122) cooperate to clamp the cathode rod of the electroplating equipment; The outer side of the U-shaped hook (111) is in direct contact with the inner side of the conductive hook (12) to conduct electricity.

3. The electroplating rack according to claim 1, characterized in that, The second fixing part (3) includes a second conductive sheet (31), a second conductive grid (32), and a second insulating frame (34); The second insulating frame (34) surrounds the edge of the second conductive grid (32); The second conductive sheet (31) is disposed above the second insulating frame (34) and is electrically connected to the second conductive grid (32) and the conductive hook (12).

4. The electroplating rack according to claim 3, characterized in that, The first fixing part (2) includes a first conductive sheet (21), a first insulating frame (22) and a first conductive grid (24); The first insulating frame (22) is disposed around the edge of the first conductive grid (24); The first conductive sheet (21) is disposed above the first insulating frame (22) and is electrically connected to the first conductive grid (24) and the second conductive sheet (31).

5. The electroplating rack according to claim 4, characterized in that, The first fixing part (2) is provided with a first conductive grid (24) on one side close to the second conductive grid (32) of the second fixing part (3), and the receiving space (4) is formed between the first conductive grid (24) and the second conductive grid (32).

6. The electroplating rack according to claim 4, characterized in that, The first fixing part (2) further includes: a first conductive line (23) disposed around the inner edge of the first insulating frame (22) and electrically connected to the first conductive grid (24); And / or, The second fixing part (3) further includes a second conductive wire (33) disposed around the inner edge of the second insulating frame (34) and electrically connected to the second conductive grid (32).

7. The electroplating rack according to claim 6, characterized in that, For the structure of the first fixing part (2) including the first conductive wire (23), the first insulating frame (22) is further provided with a first groove (221) for accommodating the first conductive wire (23), and the surface of the first conductive wire (23) placed in the first groove (221) is in contact with the surface of the first conductive grid (24). For the second fixing part (3) including the second conductive wire (33) structure, the second insulating frame (34) is also provided with a second groove (341) for accommodating the second conductive wire (33), and the surface of the second conductive wire (33) placed in the second groove (341) is in contact with the surface of the second conductive grid (32).

8. The electroplating rack according to claim 4, characterized in that, The first conductive sheet (21) covers the upper edge of the first insulating frame (22) and the first conductive grid (24); And / or, The second conductive sheet (31) covers the upper edge of the second conductive grid (32) and the second insulating frame (34).

9. The electroplating rack according to any one of claims 3 to 8, characterized in that, The second fixing part (3) also includes a third conductive grid (36); The second insulating frame (34) surrounds the edge of the third conductive grid (36), and the second conductive grid (32) and the third conductive grid (36) are respectively disposed on both sides of the second insulating frame (34); The second conductive sheet (31) is electrically connected to the third conductive grid (36); Accordingly, the number of the first fixing parts (2) in the electroplating fixture is two; The two first fixing parts (2) are respectively located on both sides of the second fixing part (3).

10. The electroplating fixture according to claim 9, characterized in that, The second fixing part (3) further includes: a third conductive line (35) disposed around the inner edge of the second insulating frame (34) and electrically connected to the third conductive grid (36); And / or, The second conductive sheet (31) covers the upper edges of the second conductive grid (32), the second insulating frame (34), and the third conductive grid (36); And / or, The first fixing part (2) is fastened to the second fixing part (3).

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