A brush plating structure
By designing an electroplating structure for electric brushes, partial electroplating of the brush filaments is achieved, reducing electroplating costs and improving electroplating efficiency and appearance, thus overcoming the shortcomings of existing electroplating structures.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUNWAY COMM JIANGSU CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-07-14
AI Technical Summary
Existing brush electroplating structures cannot achieve localized electroplating, leading to an increase in the amount of precious metals used. The plating layer is easily scratched and the brush bristles are easily deformed, affecting performance and appearance.
The system employs an electroplating structure, where the brush filaments are fixed into a roll form using a material strip and mounting section. This is combined with electroplating components and an electroplating tank for localized electroplating. Pre-set electroplating areas are set on the brush filaments, and continuous electroplating is performed using a roll-up method.
It enables partial electroplating, reduces electroplating costs, improves electroplating efficiency and appearance, reduces the use of precious metals, and avoids wear and deformation of the brush bristles.
Smart Images
Figure CN224494395U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of brush technology, and in particular to a brush electroplating structure that can achieve localized electroplating. Background Technology
[0002] As part of the conductive slip ring, the main function of the brush bristles is to come into contact with the rotor or conductive ring in the conductive slip ring.
[0003] Generally speaking, there are multiple plating thickness requirements for brush filaments; in other words, manufacturers only need to perform electroplating at the contact point between the brush filament and the rotor instead of electroplating the entire brush filament, in order to reduce the electroplating cost of the brush filament.
[0004] In the existing technology, manufacturers usually use dip plating or barrel plating to electroplate brush filaments. However, the dip plating or barrel plating methods mentioned above cannot meet the requirements of localized electroplating of brush filaments. This not only causes a large loss of precious metals, but also makes the brush filaments prone to scratches and deformation, thus affecting the performance of the brush filaments.
[0005] In summary, traditional brush electroplating structures still have some drawbacks:
[0006] (1) It is impossible to achieve local electroplating of brush filaments, which leads to an increase in the amount of precious metals used, resulting in higher material costs.
[0007] (2) Although the uniformity of the coating produced by dip plating is good, its thickness is relatively thin, which makes the coating produced by dip plating easy to be scratched or leave scratches, thereby reducing the appearance of the coating produced by dip plating.
[0008] (3) Although barrel plating can achieve a uniform coating by precisely controlling the current density, barrel plating may cause wear and deformation of the brush filaments during the rolling process. Utility Model Content
[0009] The electric brush electroplating structure provided by this utility model aims to solve at least some of the defects of existing electric brush electroplating structures.
[0010] This utility model provides an electroplating structure using an electric brush. The electroplating structure includes:
[0011] The material strip includes a base portion and N sets of mounting portions, and the N sets of mounting portions are spaced apart on the base portion;
[0012] N brush filaments, each of which is fixed on a corresponding set of mounting parts;
[0013] The base portion is a roll material, and N of the brush filaments are continuously arranged on the base portion through N sets of mounting portions;
[0014] The brush bristles are provided with a preset electroplating area, and the surface area of the electroplating area is smaller than the surface area of the brush bristles.
[0015] Where N is a positive integer not less than 1.
[0016] In some embodiments, the brush electroplating structure further includes:
[0017] Electroplated parts;
[0018] The brush bristles form a coating in the electroplating area through the electroplating component, and the coating has a preset target thickness.
[0019] In some embodiments, the electroplating component includes:
[0020] Power supply and anode plate;
[0021] The anode plate is configured as the anode, and the substrate and the N brush filaments fixed on the substrate together form the cathode of the electroplating component;
[0022] The positive terminal of the power supply is connected to the anode plate, and the negative terminal of the power supply is connected to the base portion.
[0023] In some embodiments, the electroplating component further includes:
[0024] An electroplating tank, wherein the electroplating tank is filled with an electroplating solution;
[0025] The electroplating area of the brush bristles and at least a portion of the anode plate are immersed in the electroplating solution.
[0026] In some embodiments, the brush bristles include:
[0027] Mounting arm and a pair of contact arms;
[0028] The pair of contact arms protrude from the two ends of the mounting arm, so that the brush filaments are U-shaped.
[0029] In some embodiments, the mounting arm is clamped on the mounting portion of the strip, and the electroplating area is disposed on at least a portion of the contact arm;
[0030] The electroplating area extends from the end of the contact arm away from the mounting arm toward the mounting arm.
[0031] In some embodiments, when the brush bristles are fixed to the base portion by the mounting portion, the projection of the mounting arm on the base portion has a first length dimension, the projection of the contact arm on the base portion has a second length dimension, and the projection of the electroplating area on the base portion has a third length dimension.
[0032] The third length dimension is smaller than the second length dimension.
[0033] In some embodiments, the mounting portion includes:
[0034] A pair of protrusions, both of which protrude from the surface of the base portion;
[0035] A preset target spacing is provided between the pair of protrusions, and the target spacing can be configured according to the first length dimension.
[0036] In some embodiments, the protrusion is provided with a slot having a size adapted to the mounting arm;
[0037] The mounting arm is inserted into the slot so that it is clamped onto the mounting part.
[0038] In some embodiments, the protrusion is formed by at least a partial bending of the base portion, and the protrusion and the base portion are integrally formed.
[0039] At least one beneficial effect of the brush electroplating structure provided in this embodiment of the present invention is that, compared with dip plating or barrel plating, the present brush electroplating structure can perform localized electroplating on the brush filaments, thereby reducing the electroplating area of the brush filaments and thus reducing the electroplating cost of the brush filaments; the present brush electroplating structure can perform continuous electroplating by means of roll material, which can not only improve the electroplating efficiency of the present brush electroplating structure, but also obtain a better appearance effect while ensuring the electroplating effect. Attached Figure Description
[0040] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.
[0041] Figure 1 This is a schematic diagram of the structure of the brush bristles fixed on the base provided in this embodiment of the utility model;
[0042] Figure 2 This is a schematic diagram of the electroplating structure of the brush provided in this embodiment of the utility model, showing the structure of the rivet buckle;
[0043] Figure 3This is a schematic diagram of the raised structure of the strip provided in this embodiment of the utility model;
[0044] Figure 4 This is a schematic diagram of the structure of the brush bristles provided in this embodiment of the utility model.
[0045] Figure label:
[0046] 100. Electroplating structure; 1. Material strip; 11. Base part; 12. Mounting part; 121. Protrusion; 1201. Rivet buckle; 1211. Slot; 2. Brush filament; 21. Mounting arm; 22. Contact arm; 2201. Electroplating area; 3. Electroplating component; 31. Power supply; 32. Anode plate; 33. Electroplating tank; 301. Cathode. Detailed Implementation
[0047] The present invention will now be described in detail with reference to specific embodiments. It should be emphasized that the following description is merely exemplary and is not intended to limit the scope and application of the present invention.
[0048] It should be noted that, unless otherwise expressly specified and limited, the terms "X direction," "Y direction," "away from," "approaching," etc., used in this specification to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "installed," "connected," "joined," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features; thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature; "a plurality" or "several" means two or more; "and / or" includes any and all combinations of one or more of the related listed items. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0049] Figure 1 This is a schematic diagram of the structure of the brush bristles fixed on the base provided in this embodiment of the utility model. Figure 2 This is a schematic diagram of the electroplating structure provided in this embodiment of the utility model, showing the structure of the rivet buckle. Figure 3 This is a schematic diagram of the material strip provided in this embodiment of the utility model, showing the protruding structure. Figure 4 This is a schematic diagram of the structure of the brush bristles provided in this embodiment of the utility model.
[0050] In the following description, such as Figures 1-3 As shown, there are cases where the length direction of the unfolded base part 11 or the length direction of the mounting arm is set as the "X direction", and the width direction of the unfolded base part 11 or the length direction of the contact arm is set as the "Y direction".
[0051] The term "immersion plating" is a surface treatment process that forms a coating on the surface of a metal substrate through a chemical displacement reaction.
[0052] The core principle of immersion plating is to immerse a metal substrate (e.g., brush filament 2) in an immersion plating solution. At this time, the metal substrate and the metal ions in the immersion plating solution can undergo a displacement reaction, thereby forming a coating on the surface of the metal substrate.
[0053] Immersion plating requires no external power source and relies solely on the displacement reaction between the metal substrate and metal ions in the immersion solution to generate the plating layer. Therefore, immersion plating is a spontaneous autocatalytic reaction. However, this autocatalytic plating mechanism has the following drawback: the displacement reaction stops once the surface of the metal substrate is completely covered, which makes the plating layer produced by immersion plating usually thin (for example, immersing a copper plate in a tin solution for 1 hour can only form a plating layer with a thickness of 3 μm).
[0054] The coating produced by immersion plating may have pores between it and the metal substrate due to the displacement reaction characteristics, resulting in poor adhesion between the coating and the surface of the metal substrate. In addition, the coating produced by immersion plating is relatively brittle and thin. This makes it impossible to achieve a good appearance while ensuring the electroplating effect (because the coating produced by immersion plating is thin, it is easily scratched or left with scratches, thus reducing the appearance of the coating produced by immersion plating).
[0055] The term "barrel plating" refers to the process of placing the workpiece to be plated inside a rotating drum, using the rolling motion to achieve full contact between the workpiece and the plating solution, thereby uniformly depositing a metal coating on the surface of the workpiece.
[0056] The core principles of barrel plating are: dynamic tumbling (the workpiece to be plated tumbles and falls continuously as the drum rotates, ensuring that each workpiece periodically tumbles from the inner layer to the surface, achieving uniform plating), indirect conductivity (current is transmitted through the cathode conductive device inside the drum, and the workpiece to be plated only contacts the conductive device through its own gravity. Most of the current needs to be indirectly transmitted through the workpiece to be plated, but barrel plating requires precise control of the current density to avoid uneven plating), and solution exchange (the drum wall is covered with small holes, and new barrel plating solution is continuously replenished through the small holes, while old solution and gas generated by electroplating are discharged, maintaining a stable solution concentration).
[0057] While barrel plating can achieve a uniform coating by precisely controlling the current density, it can also cause wear and deformation of the workpiece (e.g., brush filament 2) during the rolling process.
[0058] During the immersion plating process, the metal substrate (e.g., brush filament 2) is completely immersed in the immersion plating solution. The contact between the immersion plating solution and the metal substrate is comprehensive. This contact method allows the displacement reaction to occur simultaneously on the entire surface of the metal substrate, thereby ensuring that the plating layer produced by immersion plating uniformly covers the entire surface of the metal substrate. Consequently, immersion plating cannot form a plating layer on local structures.
[0059] During barrel plating, the tumbling motion ensures that each part to be plated (e.g., brush filament 2) can periodically tumble from the inner layer to the outer layer, thereby being uniformly plated on the entire surface of the part to be plated; therefore, the plating produced by barrel plating will uniformly cover the entire surface of the part to be plated, thus preventing barrel plating from forming a plating layer on local structures.
[0060] In the barrel plating process, although indirect conduction can ensure that the current is evenly distributed among the parts to be plated, it also makes the plating layer produced by barrel plating form evenly on the entire surface of the parts to be plated, thus further causing barrel plating to fail to form a plating layer on local structures.
[0061] The term "roll" usually refers to a structure in which the base of a strip can be wound into a cylindrical or tubular shape.
[0062] The term "electroplated area" refers to the area on the brush filament where a plating layer can be formed.
[0063] The term "continuous electroplating" refers to the placement of multiple brush filaments on the substrate of a strip, allowing the multiple brush filaments to be continuously processed during the electroplating process, rather than being processed individually.
[0064] The term "continuous electroplating in roll form" is a highly efficient and automated electroplating process that achieves uniform deposition of the plating layer in the electroplating area through a continuous and automated production process.
[0065] Please see Figures 1-4 The electroplating structure 100 includes: a material strip 1 and N brush filaments 2.
[0066] The material strip 1 includes a base portion 11 and N sets of mounting portions 12, and the N sets of mounting portions 12 are spaced apart on the base portion 11 along the X direction.
[0067] In addition, each brush filament 2 is fixed on a corresponding mounting part 12.
[0068] Furthermore, the base portion 11 is made of rolled material, and N brush filaments 2 are continuously arranged on the base portion 11 through N sets of mounting portions 12.
[0069] This brush electroplating structure 100 can perform continuous electroplating by means of roll material, thus giving it advantages such as high electroplating efficiency, more uniform coating, and low labor cost.
[0070] The electroplating structure 100 uses continuous electroplating, which can increase the electroplating efficiency of the brush filaments 2, and achieve a better appearance while ensuring the electroplating effect.
[0071] It should be noted that the brush bristles 2 are provided with a preset electroplating area 2201, and the surface area of the electroplating area 2201 is smaller than the surface area of the brush bristles 2. This can reduce the area that needs to be electroplated on the brush bristles 2, thereby reducing the electroplating cost of the brush bristles 2.
[0072] It is understandable that N is a positive integer not less than 1.
[0073] In some embodiments, such as Figure 2 As shown, the brush electroplating structure 100 also includes an electroplating component 3.
[0074] Specifically, the brush bristles 2 form a plating layer in the electroplating area 2201 through the electroplating component 3, and the plating layer has a preset target thickness.
[0075] In some embodiments, according to Figure 2 It can be seen that the electroplating component 3 includes: a power supply 31 and an anode plate 32.
[0076] The anode plate 32 is configured as the anode, and the substrate 11 and the N brush filaments 2 fixed on the substrate 11 together form the cathode 301 of the electroplating component 3.
[0077] In addition, the positive terminal of the power supply 31 is connected to the anode plate 32, and the negative terminal of the power supply 31 is connected to the substrate 11.
[0078] In some embodiments, by Figure 2 It can be seen that the electroplating component 3 also includes: electroplating tank 33.
[0079] The electroplating tank 33 contains an electroplating solution.
[0080] In addition, at least a portion of the electroplating area 2201 of the brush filament 2 and the anode plate 32 are immersed in the electroplating solution.
[0081] In some embodiments, refer to Figure 4 It is known that the brush filament 2 includes: mounting arm 21 and a pair of contact arms 22.
[0082] In this embodiment, a pair of contact arms 22 protrude from the two ends of the mounting arm 21, so that the brush filaments 2 are U-shaped.
[0083] In some embodiments, please refer to Figure 1 and Figure 2 The mounting arm 21 is clamped on the mounting portion 12 of the strip 1, and the electroplating area 2201 is provided on at least a portion of the contact arm 22.
[0084] Specifically, the electroplating area 2201 extends from the end of the contact arm 22 away from the mounting arm 21 toward the mounting arm 21.
[0085] In some embodiments, combined with Figure 1 and Figure 2 It can be seen that when the brush bristles 2 are fixed on the base portion 11 by the mounting portion 12, the projection of the mounting arm 21 on the base portion 11 has a first length dimension in the X direction, the projection of the contact arm 22 on the base portion 11 has a second length dimension in the Y direction, and the projection of the electroplating area 2201 on the base portion 11 has a third length dimension in the Y direction.
[0086] To further clarify, the third length dimension is smaller than the second length dimension.
[0087] In some embodiments, such as Figure 3 As shown, the mounting part 12 includes a pair of protrusions 121.
[0088] Among them, a pair of protrusions 121 both protrude from the surface of the base portion 11.
[0089] In addition, there is a preset target spacing between the pair of protrusions 121, and the target spacing can be configured according to the first length dimension.
[0090] In some embodiments, according to Figure 1 and Figure 3 It can be seen that the protrusion 121 is provided with a slot 1211, which has a size that is adapted to the mounting arm 21.
[0091] It should be noted that the mounting arm 21 is inserted into the slot 1211 so that the mounting arm 21 is clamped on the mounting part 12.
[0092] In one example, by Figure 2 It can be seen that the mounting part 12 can also be a pair of rivet buckles 1201 and a detachable rivet (not shown in the figure) that cooperates with the pair of rivet buckles 1201.
[0093] Among them, the pair of rivet buckles 1201 also have a preset target spacing, and the target spacing can also be configured according to the first length dimension.
[0094] In addition, the mounting arm 21 can be fixed to the base part 11 by engaging with the rivet buckle 1201 and the detachable rivet.
[0095] In some embodiments, refer to Figure 3 It is known that the protrusion 121 is formed by at least a partial bending of the base portion 11, and the protrusion 121 and the base portion 11 are an integral structure.
[0096] In summary, the electroplating structure provided by this utility model embodiment, compared with immersion plating or barrel plating, can perform localized electroplating on the brush filaments, thereby reducing the plating area of the brush filaments and thus lowering the electroplating cost. This electroplating structure can perform continuous electroplating using a roll-to-roll method, which not only improves the electroplating efficiency but also achieves a better appearance while ensuring the electroplating effect. Therefore, the electroplating structure provided by this utility model embodiment has a certain novelty compared to traditional electroplating structures.
[0097] The above description, in conjunction with specific / preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and all of these fall within the protection scope of the present invention.
Claims
1. A brush electroplating structure, characterized in that, include: The material strip includes a base portion and N sets of mounting portions, and the N sets of mounting portions are spaced apart on the base portion; N brush filaments, each of which is fixed on a corresponding set of mounting parts; The base portion is a roll material, and N of the brush filaments are continuously arranged on the base portion through N sets of mounting portions; The brush bristles are provided with a preset electroplating area, and the surface area of the electroplating area is smaller than the surface area of the brush bristles. Where N is a positive integer not less than 1.
2. The brush electroplating structure according to claim 1, characterized in that, Also includes: Electroplated parts; The brush bristles form a coating in the electroplating area through the electroplating component, and the coating has a preset target thickness.
3. The brush electroplating structure according to claim 2, characterized in that, The electroplating component includes: Power supply and anode plate; The anode plate is configured as the anode, and the substrate and the N brush filaments fixed on the substrate together form the cathode of the electroplating component; The positive terminal of the power supply is connected to the anode plate, and the negative terminal of the power supply is connected to the base portion.
4. The brush electroplating structure according to claim 3, characterized in that, The electroplating component also includes: An electroplating tank, wherein the electroplating tank is filled with an electroplating solution; The electroplating area of the brush bristles and at least a portion of the anode plate are immersed in the electroplating solution.
5. The brush electroplating structure according to claim 1, characterized in that, The brush bristles include: Mounting arm and a pair of contact arms; The pair of contact arms protrude from the two ends of the mounting arm, so that the brush filaments are U-shaped.
6. The brush electroplating structure according to claim 5, characterized in that, The mounting arm is clamped on the mounting portion of the strip, and the electroplating area is disposed on at least a portion of the contact arm; The electroplating area extends from the end of the contact arm away from the mounting arm toward the mounting arm.
7. The brush electroplating structure according to claim 5, characterized in that, When the brush bristles are fixed to the base portion by the mounting portion, the projection of the mounting arm on the base portion has a first length dimension, the projection of the contact arm on the base portion has a second length dimension, and the projection of the electroplating area on the base portion has a third length dimension. The third length dimension is smaller than the second length dimension.
8. The brush electroplating structure according to claim 7, characterized in that, The mounting unit includes: A pair of protrusions, both of which protrude from the surface of the base portion; A preset target spacing is provided between the pair of protrusions, and the target spacing can be configured according to the first length dimension.
9. The brush electroplating structure according to claim 8, characterized in that, The protrusion is provided with a slot, which has a size that is adapted to the mounting arm; The mounting arm is inserted into the slot so that it is clamped onto the mounting part.
10. The brush electroplating structure according to claim 8, characterized in that, The protrusion is formed by at least a partial bending of the base portion, and the protrusion and the base portion are an integral structure.