Arc extinguish chamber electroplating device

Abstract

The invention relates to the technical field of electroplating devices, in particular to an arc extinguish chamber electroplating device. The arc extinguish chamber electroplating device comprises an electroplating bath, an anode is arranged in the electroplating bath, an anode outgoing line is arranged outside a bath shell of the electroplating bath and provided with an anode connecting end, a through connecting via hole is formed in the side wall of the bath shell of the electroplating bath, and the anode connecting end is in conductive connection with the anode through a conductive connecting structure. The conductive connecting structure is provided with a part penetrating through the connecting via hole, and a sealing structure for sealing the connecting via hole so as to separate the inside and the outside of the electroplating bath is arranged at the conductive connecting structure. The anode lead-out wire can be far away from the notch of the electroplating bath, so that the anode lead-out wire is prevented from being in contact with a cover plate of the arc extinguish chamber when the end face of the contact rod of the arc extinguish chamber is electroplated, and the hidden danger of short circuit can be effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of electroplating devices, and in particular to an arc extinguishing chamber electroplating device. Background Art

[0002] The arc extinguishing chamber is the core component of medium and high voltage power switchgear. Its main function is to quickly extinguish the arc and suppress the current after the medium and high voltage circuit is cut off from the power supply through excellent sealing performance, so as to avoid accidents. The vacuum arc extinguishing chamber is the core component of the vacuum circuit breaker. Its performance determines the comprehensive performance of the vacuum circuit breaker. The production process of the vacuum arc extinguishing chamber includes the process of silver plating the end face of its contact rod. The electroplating device currently used in the silver plating process can refer to a vacuum arc chamber silver plating device disclosed in the Chinese invention patent with authorization announcement number CN110144573B. The device includes a lifting device, a horizontal placement platform, a silver plating tank and a vacuum arc chamber silver plating tooling. The lifting device is installed on a gantry, and the gantry can slide on the horizontal placement platform. The silver plating tank is placed on the horizontal placement platform. The vacuum arc chamber silver plating tooling includes a hoisting frame and an arc chamber clamp. The arc chamber clamp is used to clamp and position the vacuum arc chamber. The arc chamber clamp is connected to the hoisting frame. The hoisting frame is connected to the lifting device to hoist the vacuum arc chamber through the lifting device. The gantry is manually moved to the top of the silver plating tank, and the vacuum arc chamber is lowered to a suitable height, so that the end face of the contact rod enters the electroplating liquid of the silver plating tank to perform silver plating on the end face of the contact rod.

[0003] The basic structure of the arc extinguishing chamber includes a cylindrical shell made of ceramic material, with a moving end cover plate and a static end cover plate fixed at both ends of the shell, respectively. The moving contact rod passes through the moving end cover plate, and the static contact rod passes through the static end cover plate. The static end structure of the arc extinguishing chamber can refer to a static contact assembly of an arc extinguishing chamber published in the Chinese invention patent application with application publication number CN117790236A, in which the static contact rod passes through the static cover plate and is connected to the arc extinguishing chamber shell through the static cover plate. The outer end of the static contact rod protrudes from the moving end cover plate, and the outer end surface of the static contact rod constitutes a silver-plated surface, and the outer end surface of the static contact rod is higher than the highest point facing outward of the static end cover plate. During silver plating, the arc extinguishing chamber can be lowered to a position where the outer end surface of the static contact rod contacts the silver plating liquid while the cover plate does not contact the silver plating liquid, so as to avoid the silver plating liquid contacting the cover plate and affecting the silver plating efficiency and contaminating the cover plate.

[0004] Due to the continuous development of transmission-grade vacuum interrupter technology, the interrupter has developed a structure in which the end face of the contact rod is lower than the highest point of the cover plate, that is, the axial dimension of the cover plate is increased, and a groove with the notch facing outward is formed on the cover plate. The end face of the contact rod that needs to be silver-plated is located in the groove and does not protrude from the groove. In this way, when silver plating, it is necessary to make the notch end of the silver plating groove enter the annular gap between the outer end circumference of the contact rod and the side wall of the groove of the cover plate, so that the outer end face of the contact rod enters the silver plating liquid of the silver plating groove.

[0005] For a conventional silver plating tank, the anode is set at the bottom of the silver plating tank, and the anode and the external circuit are connected through a conductive bar set in the silver plating tank. The conductive bar is a very thin sheet of titanium and is exposed to avoid taking up too much space. The conductive bar serves as the anode lead of the silver plating tank. It is set close to the side wall of the silver plating tank and extends along the side wall of the silver plating tank. One end of the conductive bar is connected to the anode at the bottom of the tank, and the other end extends out of the notch of the silver plating tank and folds outward and then extends downward. The downward extended part is used to connect the external circuit. During silver plating, since a part of the notch end of the silver plating groove needs to enter the annular gap between the outer end circumference of the contact rod and the side wall of the cover plate groove, correspondingly, the outward folded part of the conductive bar located at the notch of the silver plating groove will also enter the annular gap, and the outward folded part of the conductive bar will occupy a part of the outer space of the silver plating groove, while the annular gap between the outer end circumference of the contact rod and the side wall of the cover plate groove is relatively small. Therefore, during silver plating, it is easy to be affected by human operation factors, causing the outward folded part of the conductive bar to contact the side wall of the cover plate groove, and the anode lead wire of the silver plating groove contacts the cover plate of the arc extinguishing chamber to cause a short circuit, resulting in damage to components. Summary of the invention

[0006] The object of the present invention is to provide an arc extinguishing chamber electroplating device to solve the problem that the current arc extinguishing chamber electroplating device is prone to short circuit due to the contact between the anode lead wire and the cover plate of the arc extinguishing chamber.

[0007] The technical solution of the arc extinguishing chamber electroplating device of the present invention is: An arc extinguishing chamber electroplating device comprises an electroplating tank, wherein an anode is arranged in the electroplating tank, an anode lead wire is arranged outside the tank shell of the electroplating tank, the anode lead wire has an anode connection end, a through connection via hole is arranged on the side wall of the tank shell of the electroplating tank, the anode connection end is conductively connected to the anode through a conductive connection structure, the conductive connection structure has a part passing through the connection via hole, and a sealing structure is provided at the conductive connection structure for sealing the connection via hole to separate the inside and outside of the electroplating tank.

[0008] Beneficial effect: The present invention makes element changes on the basis of the arc extinguishing chamber electroplating device in the prior art, arranges the anode lead wire outside the tank shell of the electroplating tank, and opens a connecting via hole on the side wall of the tank shell of the electroplating tank. The connecting via hole is used to avoid the conductive connection structure between the anode connection end of the anode lead wire and the anode. The conductive connection structure can pass through the connecting via hole to realize the conductive connection between the anode lead wire and the anode. At the same time, the connecting via hole is sealed by a sealing structure to ensure the separation of the space inside and outside the electroplating tank. Such an anode lead wire structure can keep the anode lead wire away from the notch of the electroplating tank, avoiding the anode lead wire from contacting the cover plate of the arc extinguishing chamber when the end face of the arc extinguishing chamber contact rod is electroplated, which can effectively solve the hidden danger of short circuit.

[0009] Furthermore, the conductive connection structure includes a connection bolt, which constitutes a portion of the conductive connection structure that passes through the connection through hole, and the anode and the anode connection end are fixedly connected to the side wall of the tank shell of the electroplating tank through the connection bolt.

[0010] Furthermore, the head of the connecting bolt is located in the electroplating tank, the tail of the connecting bolt is located outside the electroplating tank and is threadedly connected with a connecting nut, and the connecting bolt cooperates with the connecting nut to fix the anode and the anode connecting end and conduct electricity.

[0011] Furthermore, a sealing ring is provided between the portion of the connecting bolt located in the connecting through hole and the hole wall of the connecting through hole, and the sealing ring constitutes the sealing structure.

[0012] Furthermore, the anode lead wire is a conductive row formed by the sheet.

[0013] Furthermore, the conductive bar has a vertical connecting section and a horizontal section perpendicular to the vertical connecting section, and the vertical connecting section is attached to the outer wall of the tank shell of the electroplating tank and constitutes the anode connecting terminal.

[0014] Furthermore, the arc extinguishing chamber electroplating device includes an overflow trough, the electroplating trough is arranged at the bottom of the overflow trough, and the conductive bar also has a vertical lead-out section abutting against the inner wall of the overflow trough, and the vertical lead-out section is connected to the horizontal section.

[0015] Furthermore, the anode is a cylinder, the outer diameter of the cylinder is adapted to the inner diameter of the electroplating tank, and the cylinder wall of the cylinder is connected to the anode connection end through the conductive connection structure and fixed on the tank shell side wall of the electroplating tank.

[0016] Furthermore, the arc extinguishing chamber electroplating device comprises a box body, the electroplating tank is fixed on the box body, and rollers are provided at the bottom of the box body to align the electroplating tank with the arc extinguishing chamber by moving the arc extinguishing chamber electroplating device.

[0017] Furthermore, the arc extinguishing chamber electroplating device comprises an overflow trough, the electroplating trough is arranged at the bottom of the overflow trough, and the anode lead wires are arranged above the bottom of the overflow trough at intervals. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the arc extinguishing chamber electroplating device of the present invention; Figure 2 for Figure 1 A schematic top view of the arc extinguishing chamber electroplating device; Figure 3 for Figure 1 A perspective view of the arc extinguishing chamber plating device in FIG. Figure 4 for Figure 3 Schematic diagram of the connection structure between the anode lead wire and the anode.

[0019] In the figure: 1. Box body; 2. Electrolytic degreasing tank; 3. Water washing tank; 4. Pre-silver plating tank; 5. Secondary silver plating tank; 6. Overflow tank; 7. Liquid storage tank; 8. Pump; 9. Liquid supply pipe; 10. Liquid supply valve; 11. Liquid discharge valve; 12. Control power supply; 13. Roller; 14. Anode lead wire; 141. Vertical connecting section; 142. Horizontal section; 143. Vertical lead section; 41. Tank shell; 42. Connection via; 43. Anode; 44. Liquid flow channel; 45. Liquid flow head. DETAILED DESCRIPTION

[0020] The basic concept of the present invention is to connect the anode outside the plating tank of the arc extinguishing chamber electroplating device, so that the anode lead wire is away from the notch of the plating tank, avoiding the anode lead wire contacting the cover plate of the arc extinguishing chamber and causing a short circuit when the end face of the arc extinguishing chamber contact rod is electroplated.

[0021] The following is a specific description with reference to embodiments.

[0022] Embodiments of the arc extinguishing chamber electroplating device of the present invention: The arc extinguishing chamber electroplating device in this embodiment is used to silver plate the outer end surface of the static contact rod and the outer end surface of the moving contact rod of the vacuum arc extinguishing chamber. Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the arc extinguishing chamber electroplating device includes a housing 1 and an electrolytic degreasing tank 2, a water washing tank 3, a pre-silver plating tank 4, and a secondary silver plating tank 5. The pre-silver plating tank 4 and the secondary silver plating tank 5 both constitute electroplating tanks for silver plating the vacuum arc extinguishing chamber. The electrolytic degreasing tank 2, the pre-silver plating tank 4, and the secondary silver plating tank 5 are all cylindrical structures and have upward notches. The electrolytic degreasing tank 2 is used to contain the electrolytic degreasing solution. The pre-silver plating tank 4 and the secondary silver plating tank 5 are used to contain the corresponding electroplating solution, that is, the silver plating solution. The water washing tank 3 contains water. When the vacuum arc extinguishing chamber is silver-plated, the part that needs to be silver-plated first enters the electrolytic degreasing tank 2 for degreasing, then enters the water washing tank 3 for cleaning, and then enters the pre-silver plating tank 4 and the secondary silver plating tank 5 in turn for silver plating.

[0023] The basic structure of the arc extinguishing chamber that needs to be silver-plated in this embodiment includes a cylindrical shell made of ceramic material, with a moving end cover plate and a static end cover plate fixed at both ends of the shell, the moving contact rod passes through the moving end cover plate, and the static contact rod passes through the static end cover plate. The contact rod has an outer end extending out of the inner cavity of the arc extinguishing chamber, the outer end surface of the contact rod is lower than the highest point facing outward of the cover plate, and a groove with a notch facing outward is formed on the cover plate. The outer end surface of the contact rod that needs to be silver-plated is located in the groove and does not protrude from the notch. The inner diameter of the silver-plating groove is larger than the diameter of the contact rod of the arc extinguishing chamber, and the outer diameter is smaller than the inner diameter of the groove of the cover plate. When silver-plating, it is necessary to make the notch end of the silver-plating groove enter the annular gap between the outer end peripheral surface of the contact rod and the side wall of the groove of the cover plate, so that the outer end surface of the contact rod enters the silver plating liquid of the silver-plating groove.

[0024] During the silver plating process, in addition to the outer end surface of the contact rod entering the liquid, a part of the contact rod close to the outer end surface will also enter the liquid, and the liquid may overflow from the slot. In order to collect the overflowed liquid, the electrolytic degreasing tank 2, the pre-silver plating tank 4, and the secondary silver plating tank 5 are respectively configured with an overflow tank 6. The overflow tank 6 is a square tank structure, and the slot of the overflow tank 6 is flush with the top surface of the box body 1. Each overflow tank 6 and the water washing tank 3 are fixed on the box body 1. The box body 1 is generally a cubic structure. The electrolytic degreasing tank 2, the pre-silver plating tank 4, and the secondary silver plating tank 5 are respectively installed at the bottom of the corresponding overflow tank 6 and are in the center position.

[0025] In order to facilitate the display of the internal structure of the arc extinguishing chamber plating device, Figure 3 A perspective view is used. The structures of the pre-silver plating tank 4 and the secondary silver plating tank 5 are the same. The electroplating tank includes a tank shell 41 and an anode 43 arranged in the tank shell 41. For the electroplating tank, during silver plating, the arc extinguishing chamber serves as a cathode, and the anode 43 is arranged in the electroplating tank. The anode 43 is connected to an anode lead wire 14, and the anode lead wire 14 is connected to the control power supply 12 in the box body 1 through a wire.

[0026] In order to prevent the cover of the arc extinguishing chamber from contacting the anode lead wire 14 and causing a short circuit during silver plating, the anode lead wire 14 is arranged outside the tank shell 41 of the electroplating tank. The anode lead wire 14 has an anode connection end. The side wall of the tank shell 41 of the electroplating tank is provided with a through connection hole 42. The side wall of the tank shell 41 is the circumferential cylindrical wall of the tank shell 41. The anode connection end is conductively connected to the anode 43 through a conductive connection structure. The conductive connection structure has a portion that passes through the connection hole 42, and a sealing structure is provided at the conductive connection structure to seal the connection hole 42 to separate the inside and outside of the electroplating tank. The conductive connection structure between the anode connection end of the anode lead wire 14 and the anode 43 is avoided by using the connecting via 42. The conductive connection structure can pass through the connecting via 42 to achieve the conductive connection between the anode lead wire 14 and the anode 43. At the same time, the connecting via 42 is sealed by a sealing structure to ensure the separation of the space inside and outside the electroplating tank. Such an anode 43 outlet structure can keep the anode lead wire 14 away from the notch of the electroplating tank, avoiding the anode lead wire 14 from contacting the cover of the arc extinguishing chamber when the end face of the arc extinguishing chamber contact rod is silver-plated, which can effectively solve the hidden danger of short circuit.

[0027] The conductive connection structure for connecting the anode lead wire 14 and the anode 43 includes a connection bolt (not shown in the figure), and the connection bolt constitutes the part of the conductive connection structure that passes through the connection through hole 42. The anode 43 and the anode connection end of the anode lead wire 14 are fixedly connected to the side wall of the tank shell 41 of the electroplating tank through the connection bolt, and the structure is simple and easy to install. In other embodiments, a connection column can also be integrally provided at the anode connection end, and the connection column passes through the connection through hole and through the through hole on the anode. One end of the through hole on the anode through which the connection column passes is threadedly connected to a nut to achieve fixation and conductive connection between the anode and the anode lead wire.

[0028] The head of the connecting bolt is located in the electroplating tank, while the end of the connecting bolt is located outside the electroplating tank. The anode 43 is provided with a through hole for the connecting bolt to pass through. The anode connection end of the anode lead wire 14 is also provided with a through hole for the connecting bolt to pass through. When the connecting bolt is installed, it passes from the inside of the electroplating tank to the outside of the electroplating tank. The end of the anode connection end through which the connecting bolt passes is threadedly connected with a connecting nut. The connecting bolt cooperates with the connecting nut to fix the anode 43 and the anode lead wire 14 and connect them conductively. The anode 43 and the anode lead wire 14 are fixed to the side wall of the tank shell 41. The risk of discharge at the tip of the connecting nut can be reduced by locating the connecting nut outside the electroplating tank. In other embodiments, the head of the connecting nut can also be outside the electroplating tank, while the connecting nut is located inside the electroplating tank, and the edge of the connecting nut can be rounded to avoid the formation of a tip.

[0029] A sealing ring is provided between the portion of the connecting bolt located in the connecting through hole 42 and the hole wall of the connecting through hole 42. The sealing ring constitutes a sealing structure. The sealing ring is filled between the screw portion of the connecting bolt and the hole wall of the connecting through hole 42 to form a seal. The sealing ring is subjected to a radial extrusion force to ensure a reliable seal. The sealing ring is used for sealing, which facilitates installation operations. In other implementations, glue can also be applied inside the connecting through hole for sealing.

[0030] The anode lead wire 14 is a conductive row formed by a sheet, which is convenient for controlling the direction of the anode lead wire 14 and is conducive to reliable connection. In other implementations, a thin and long wire can also be used as the anode lead wire.

[0031] The anode lead wire 14 has a vertical connection section 141 and a horizontal section 142 perpendicular to the vertical connection section 141. The lower end of the vertical connection section 141 is connected to the horizontal section 142. The vertical connection section 141 is attached to the outer wall of the tank shell 41 of the electroplating tank and constitutes the anode connection end. The anode lead wire 14 is a bent structure, which facilitates the fixed connection between the anode lead wire 14 and the anode 43, and does not occupy too much peripheral space adjacent to the side wall of the tank shell 41. In other embodiments, the conductive bar can also be a linear extension structure, with one side surface of one end of the conductive bar in the thickness direction attached to the outer wall of the tank shell, and the other end extending perpendicular to the axis of the electroplating tank and connected to the corresponding control power supply through a wire.

[0032] The anode 43 is arranged at the bottom of the electroplating tank, and accordingly, the anode connection end of the anode lead wire 14 is fixed to the side wall of the tank shell 41 near the bottom. The anode lead wire 14 also has a vertical lead-out section 143 that is close to the inner wall of the overflow tank 6. The lower end of the vertical lead-out section 143 is connected to the end of the horizontal section 142 away from the vertical connection section 141. The length of the vertical lead-out section 143 is much greater than the length of the vertical connection section 141. The upper part of the overflow tank 6 is provided with a threading hole for the upper end of the vertical lead-out section 143 to be connected to the corresponding wire, and then connected to the control power supply 12. The vertical lead-out section 143 is used to connect the anode lead wire 14 with the wire outside the overflow tank 6 at a position close to the notch of the overflow tank 6, so as to prevent the solution of the overflow tank 6 from contacting the connection part between the anode lead wire 14 and the wire outside the overflow tank 6, and a sealing protection structure may not be provided, thereby simplifying the installation structure. In other embodiments, the vertical lead-out section may not be provided, and a threading hole may be provided at the position of the horizontal section of the anode lead-out line in the overflow trough so that the horizontal section of the anode lead-out line is directly connected to the wire outside the overflow trough. In this case, a sealing protection structure should be provided at the threading hole to avoid liquid leakage.

[0033] The anode lead wire 14 is a titanium bar, and accordingly, the anode 43 is also made of titanium, and the connecting bolts are also made of titanium, or other materials that are not as active as silver. The anode lead wire 14 is arranged above the bottom of the overflow tank 6 at intervals to reduce contact with the solution retained at the bottom of the overflow tank 6. In other embodiments, the anode lead wire can also be passed downward through the overflow tank according to the wiring requirements.

[0034] The anode 43 is a cylinder with a bottom to form a tray, and the space inside the cylinder can support the silver material. The outer diameter of the anode 43 is adapted to the inner diameter of the tank shell 41 of the electroplating tank, and the circumferential cylinder wall of the anode 43 is fixed to the side wall of the tank shell 41 of the electroplating tank. The anode 43 and the tank shell 41 are fixedly connected by bolts, wherein the fixed connection parts of the anode 43 and the tank shell 41 are provided with more than two places along the circumferential direction of the tank shell 41, and the bolts at one of the fixed connection parts constitute the connecting bolts, and the connecting bolts constitute the conductive connecting structure to connect the anode 43 with the anode lead wire 14 and fix it on the side wall of the tank shell 41 of the electroplating tank. The conductive connecting structure and the fixing structure of the anode 43 on the tank shell 41 share bolts, which can simplify the installation structure and facilitate production. The tray-shaped anode 43 is convenient for placing materials such as silver blocks. The anode 43 is fixed on the side wall of the tank shell 41 so that the anode 43 is located above the bottom surface of the electroplating tank, which is convenient for the silver material to contact the electroplating solution. In other implementations, the anode may also be a plate body with a certain thickness, and threaded holes for corresponding bolt connection are arranged on the outer peripheral surface of the plate body.

[0035] Rollers 13 are provided at the four corners of the bottom of the box 1, respectively, and the corresponding electroplating tank can be aligned with the arc extinguishing chamber by moving the arc extinguishing chamber electroplating device, and the arc extinguishing chamber electroplating device is moved to perform various processes in sequence, and the arc extinguishing chamber may not be moved to avoid damage to the arc extinguishing chamber. In other implementations, the bottom of the box may not be provided with rollers, and the corresponding electroplating tank may be moved by using a crane for hoisting the arc extinguishing chamber so as to align the corresponding electroplating tank with the arc extinguishing chamber up and down.

[0036] For the electrolytic degreasing tank 2, electrodes are also arranged in the tank, and it is also necessary to prevent the electrode lead wires from contacting the cover plate of the arc extinguishing chamber and causing a short circuit. Therefore, the electrolytic degreasing tank 2 adopts the same structure as the electroplating tank.

[0037] A liquid storage tank 7 is also provided in the box body 1. Liquid storage tanks 7 are respectively provided directly below the electrolytic degreasing tank 2, the pre-silver plating tank 4, and the secondary silver plating tank 5. The liquid storage tanks 7 are placed on the bottom surface of the box body 1. Each liquid storage tank 7 is respectively provided with a liquid supply pipeline. The liquid supply pipeline includes a pump 8, a liquid supply pipe 9, and a liquid supply valve 10. The liquid supply pipeline can be used to supply the solution in the liquid storage tank 7 to the corresponding electrolytic degreasing tank 2 or the silver plating tank. The bottom of the electrolytic degreasing tank 2, the pre-silver plating tank 4, and the secondary silver plating tank 5 is provided with a liquid flow channel 44 connected to the corresponding liquid supply pipe 9 and a liquid head 45 provided on the electrode in the tank. The liquid head 45 is provided with a guide hole, and the guide hole connects the liquid flow channel 44 with the space in the corresponding tank. The liquid supply pipe 9 is connected to a drain pipe, which is arranged vertically. A drain valve 11 is arranged at the lower end of the drain pipe. When the drain valve 11 is opened, the solution in the electrolytic degreasing tank 2, the pre-silver plating tank 4, and the secondary silver plating tank 5 can pass through the liquid head 45, the liquid flow channel 44, the liquid supply pipe 9 and the drain pipe and fall into the liquid storage tank 7. The liquid supply pipelines matching the pre-silver plating tank 4 and the secondary silver plating tank 5 are arranged symmetrically. The bottom of each overflow tank 6 is connected to an overflow liquid discharge pipe, which extends into the corresponding liquid storage tank 7 so that the solution in the overflow tank 6 can flow back into the corresponding liquid storage tank 7.

[0038] When in use, first use a lifting trolley with a clamp to lift the arc extinguishing chamber. The clamp can expose the groove on the cover of the arc extinguishing chamber. Move the arc extinguishing chamber electroplating device to make the arc extinguishing chamber correspond to the corresponding groove. According to the process steps, complete the relevant process links. After plating one end, lift the arc extinguishing chamber, turn the arc extinguishing chamber over, and then plate the other end. After the silver plating of both ends is completed, the arc extinguishing chamber is lifted back and placed on the transfer trolley.

[0039] The arc extinguishing chamber electroplating device can be moved at any time to improve production efficiency. The transmission-grade vacuum arc extinguishing chamber is of high value. Horizontal movement in a hoisting state will cause wear between internal parts, affecting the insulation performance of the vacuum arc extinguishing chamber. At the same time, the transmission-grade arc extinguishing chamber has many thin-walled metal parts. Horizontal movement in a hoisting state may cause fatigue wear at the stress concentration position, resulting in air leakage in the arc extinguishing chamber. Therefore, during electroplating, moving the arc extinguishing chamber electroplating device instead of the arc extinguishing chamber can avoid the above problems.

[0040] The anode wire of the arc extinguishing chamber electroplating device is led out from the outside of the silver plating tank, which can effectively solve the hidden danger of short circuit. The silver plating range is precisely controllable and suitable for batch vacuum arc extinguishing chamber silver plating. The composition structure is simple, the production cost is low, the working process is simple to operate, and the service life is long, which reduces the investment cost and improves the production efficiency and production quality.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments without creative work, or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An arc extinguishing chamber electroplating device, characterized in that: The invention comprises an electroplating tank, wherein an anode is arranged in the electroplating tank, an anode lead wire is arranged outside the tank shell of the electroplating tank, the anode lead wire has an anode connection end, a through connection via hole is arranged on the side wall of the tank shell of the electroplating tank, the anode connection end is conductively connected to the anode through a conductive connection structure, the conductive connection structure has a part passing through the connection via hole, and a sealing structure is provided at the conductive connection structure for sealing the connection via hole to separate the inside and outside of the electroplating tank.

2. The arc extinguishing chamber electroplating device according to claim 1, characterized in that: The conductive connection structure comprises a connection bolt, which constitutes a portion of the conductive connection structure that passes through the connection through hole, and the anode and the anode connection end are fixedly connected to the side wall of the tank shell of the electroplating tank through the connection bolt.

3. The arc extinguishing chamber electroplating device according to claim 2, characterized in that: The head of the connecting bolt is located in the electroplating tank, the tail of the connecting bolt is located outside the electroplating tank and is threadedly connected with a connecting nut, and the connecting bolt cooperates with the connecting nut to fix the anode and the anode connecting end and conduct electricity.

4. The arc extinguishing chamber electroplating device according to claim 2 or 3, characterized in that: A sealing ring is arranged between the portion of the connecting bolt located in the connecting through hole and the hole wall of the connecting through hole, and the sealing ring constitutes the sealing structure.

5. The arc extinguishing chamber electroplating device according to claim 1, 2 or 3, characterized in that: The anode lead is a conductive row formed through the sheet.

6. The arc extinguishing chamber electroplating device according to claim 5 is characterized in that the conductive bar has a vertical connecting section and a horizontal section perpendicular to the vertical connecting section, and the vertical connecting section is attached to the outer wall of the tank shell of the electroplating tank and constitutes the anode connecting end.

7. The arc extinguishing chamber electroplating device according to claim 6, characterized in that: The arc extinguishing chamber electroplating device comprises an overflow trough, the electroplating trough is arranged at the bottom of the overflow trough, and the conductive bar also has a vertical lead-out section abutting against the inner wall of the overflow trough, and the vertical lead-out section is connected to the horizontal section.

8. The arc extinguishing chamber electroplating device according to claim 1, 2 or 3, characterized in that: The anode is a cylinder, the outer diameter of which matches the inner diameter of the electroplating tank, and the cylinder wall of which is connected to the anode connection end through the conductive connection structure and fixed on the tank shell side wall of the electroplating tank.

9. The arc extinguishing chamber electroplating device according to claim 1, 2 or 3, characterized in that: The arc extinguishing chamber electroplating device comprises a box body, an electroplating tank is fixed on the box body, and a roller is arranged at the bottom of the box body to align the electroplating tank with the arc extinguishing chamber by moving the arc extinguishing chamber electroplating device.

10. The arc extinguishing chamber electroplating device according to claim 1, 2 or 3, characterized in that: The arc extinguishing chamber electroplating device comprises an overflow trough, the electroplating trough is arranged at the bottom of the overflow trough, and the anode lead wires are arranged above the bottom of the overflow trough at intervals.

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