High-voltage corrosion-resistant copper contact

Abstract

The utility model discloses a high-voltage corrosion-resistant copper contact, which relates to the technical field of contacts and comprises a shell, a front shell is mounted at the front end of the shell, a contact assembly is mounted in the shell, connecting mechanisms are symmetrically mounted on two sides of the interior of the shell, a slot is formed in the middle of the front shell, and the contact assembly is mounted in the front shell. Bolts are symmetrically and movably inserted into the four corners of the front shell, and screw holes are symmetrically formed in the four corners of the front end of the outer shell. According to the utility model, through the cooperation of the leading-out terminal, the power connection sheet, the limiting frame, the elastic connection sheet, the heat dissipation holes and the springs, the elastic connection sheet enables the limiting frame to have better strength, not easy to deform and good contact performance, the electric contact sheet can be better connected, the heat dissipation holes enable the electric contact sheet to dissipate heat, and the springs are arranged in a staggered manner, so that the service life of the electric contact sheet is prolonged. And the limiting frame has the advantage of better anti-deformation effect.

Description

Technical Field

[0001] The utility model relates to the technical field of contacts, in particular to a high-voltage corrosion-resistant copper contact. Background Art

[0002] Contact is one of the key components of switching electrical appliances. According to its structure and working characteristics, it can be divided into three categories: breakable contacts, sliding contacts and fixed contacts.

[0003] It is required to have good conductivity, low contact resistance, high resistance to welding, high resistance to arc erosion and resistance to material transfer. For vacuum contact materials,

[0004] It also requires a small cutoff value, high compressive strength and high breaking capacity. The microstructure of the contact material has an important influence on its macroscopic performance. The electrical properties of the contact material, such as resistance to welding, arc erosion and pressure resistance, are not only related to the composition of the contact material, but also to the size of the grains of the constituent materials.

[0005] Electrical contacts are the main conductive contact materials widely used in relays, contactors, load switches, medium and low voltage circuit breakers, household appliances, automotive appliances and other switching devices. Switching devices are widely used to separate / close the voltage / current in the circuit, and their reliability directly affects the reliable operation of the entire power system, and electrical contacts are one of the important components of switching devices.

[0006] The existing technology has the following problems:

[0007] In actual use of existing contacts, if the limit frame in the existing contacts is thick, it will affect the elasticity of the contacts. If the limit frame is thin, the strength is insufficient, which affects the performance of the switch contacts. At the same time, the contacts also have the disadvantage of difficulty in heat dissipation, resulting in reduced practicality of the contacts. Utility Model Content

[0008] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0009] A high-voltage corrosion-resistant copper contact comprises a shell, a front shell is installed at the front end of the shell, a contact assembly is installed inside the shell, connecting mechanisms are symmetrically installed on both sides of the shell, a slot is opened in the middle of the front shell, bolts are symmetrically and movably inserted at the four corners of the front shell, and screw holes are symmetrically opened at the four corners of the front end of the shell.

[0010] Preferably, the contact assembly comprises a contact head, the exterior of the contact head is movably connected to the interior of the housing, a power contact piece is installed at the rear end of the contact head, and a rear contact piece is installed at the bottom of the power contact piece.

[0011] Preferably, the rear end of the contact body is fixedly connected to the front end of the electrical contact piece.

[0012] Preferably, the bottom of the power contact piece is fixedly connected to the top of the rear contact piece, and the contact head, the power contact piece and the rear contact piece form an "L" shape.

[0013] Preferably: the connecting mechanism includes a lead-out terminal, the outer end of the lead-out terminal is symmetrically fixedly connected to the middle of the upper and lower ends of the shell, a power connection plate is fixedly installed on the bottom of the lead-out terminal, and limit frames are symmetrically installed on the upper and lower sides of the interior of the shell, and the opposite surfaces of the limit frames are elastic connecting plates, and the surfaces of the elastic connecting plates are provided with heat dissipation holes, and a spring is installed inside the limit frame.

[0014] Preferably, the bottom end of the power connection piece is fixedly connected to the middle of the top of the limiting frame.

[0015] Preferably: the bottom end of the spring is fixedly connected to both sides of the top inner wall of the limit frame, and the other end is fixedly connected to the bottom inner wall of the limit frame, and the lower end of the elastic contact piece is symmetrically fixedly connected to both ends of the electrical contact piece.

[0016] Preferably, the bolt is threadedly connected to the screw hole, and the interior of the slot is movably connected to the exterior of the contact head.

[0017] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0018] 1. The utility model provides a high-voltage corrosion-resistant copper contact. Through a connecting mechanism, through the cooperation of a lead-out terminal, an electrical connection sheet, a limit frame, an elastic connection sheet, a heat dissipation hole, and a spring, the limit frame has better strength, is not easy to deform, has good contact performance, and can better connect to the electrical contact sheet. The heat dissipation hole can dissipate heat, and the staggered arrangement of the springs makes the limit frame have the advantage of better anti-deformation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the high-voltage corrosion-resistant copper contact of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the high-voltage corrosion-resistant copper contact details of the utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the high-voltage corrosion-resistant copper contact of the utility model;

[0022] Figure 4 It is a schematic diagram of the structure of the contact assembly of the utility model;

[0023] Figure 5It is a structural schematic diagram of the utility model.

[0024] In the figure: 1, shell; 2, front shell; 3, contact assembly; 4, connecting mechanism; 5, slot; 6, bolt; 7, screw hole; 31, contact head; 32, power contact piece; 33, rear contact piece; 41, lead terminal; 42, power contact piece; 43, limit frame; 44, elastic contact piece; 45, heat dissipation hole; 46, spring. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the embodiments:

[0026] like Figure 1-5 As shown, the utility model provides a high-voltage corrosion-resistant copper contact, including a shell 1, a front shell 2 is installed at the front end of the shell 1, a contact assembly 3 is installed inside the shell 1, connecting mechanisms 4 are symmetrically installed on both sides of the inside of the shell 1, a slot 5 is opened in the middle of the front shell 2, bolts 6 are symmetrically and movably inserted at the four corners of the front shell 2, and screw holes 7 are symmetrically opened at the four corners of the front end of the shell 1.

[0027] The bolt 6 is threadedly connected to the screw hole 7 , and the interior of the slot 5 is movably connected to the exterior of the contact head 31 .

[0028] Through the connection mechanism 4 and the elastic connecting piece 44, the limit frame 43 has better strength, is not easy to deform, has good contact performance, and can be better connected to the electric contact piece 32, and can dissipate heat through the heat dissipation hole 45; and the springs 46 are arranged in a staggered manner, so that the limit frame 43 has the advantage of better anti-deformation effect.

[0029] like Figure 4 As shown, the contact assembly 3 includes a contact head 31 , the exterior of the contact head 31 is movably connected to the interior of the housing 1 , a power contact piece 32 is installed at the rear end of the contact head 31 , and a rear contact piece 33 is installed at the bottom of the power contact piece 32 .

[0030] The rear end of the contact body is fixedly connected to the front end of the electrical contact piece 32 .

[0031] The bottom of the power contact piece 32 is fixedly connected to the top of the rear contact piece 33, and the contact head 31, the power contact piece 32, and the rear contact piece 33 form an "L" shape.

[0032] like Figure 5 As shown, the connecting mechanism 4 includes a lead-out terminal 41, the outer end of the lead-out terminal 41 is symmetrically fixedly connected to the middle of the upper and lower ends of the shell 1, and a power connection plate 42 is fixedly installed at the bottom of the lead-out terminal 41. The upper and lower sides of the interior of the shell 1 are symmetrically installed with limit frames 43, and the opposite surfaces of the limit frames 43 are elastic contacts 44. The surface of the elastic contacts 44 is provided with heat dissipation holes 45, and a spring 46 is installed inside the limit frame 43.

[0033] The bottom end of the power connection piece 42 is fixedly connected to the middle of the top of the limiting frame 43 .

[0034] The bottom end of the spring 46 is fixedly connected to both sides of the top inner wall of the limit frame 43 , and the other end is fixedly connected to the bottom inner wall of the limit frame 43 . The lower end of the elastic contact piece 44 is symmetrically fixedly connected to both ends of the electrical contact piece 32 .

[0035] The following is a detailed description of the working principle of the high-voltage corrosion-resistant copper contact.

[0036] like Figure 1-5 As shown, when the high-voltage corrosion-resistant copper contact is in use, the power contact piece 32 at the rear end of the contact head 31 can first be inserted between the two groups of elastic contact pieces 44, and then the power contact piece 32 can be firmly fixed therein by utilizing the elasticity of the elastic contact piece 44 to make a tight connection, and then the contact head 31 is passed through the slot 5, and the front shell 2 is aligned with the front end of the outer shell 1, and the bolt 6 is inserted into the screw hole 7 and tightened, so as to facilitate the installation. At the same time, the springs 46 staggered in the limit frame 43 can ensure that after the limit frame 43 is deformed, it can form a deformation restoring force in the opposite direction, so that the limit frame 43 has better strength, is not easy to deform, has good contact performance, and can better connect with the electric contact piece 32.

[0037] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A high-voltage corrosion-resistant copper contact, comprising a housing (1), a front housing (2) being mounted at the front end of the housing (1), characterized in that: A contact assembly (3) is installed inside the shell (1), connecting mechanisms (4) are symmetrically installed on both sides of the shell (1), a slot (5) is opened in the middle of the front shell (2), bolts (6) are symmetrically and movably inserted at the four corners of the front shell (2), and screw holes (7) are symmetrically opened at the four corners of the front end of the shell (1).

2. A high voltage corrosion resistant copper contact according to claim 1, characterized in that: The contact assembly (3) comprises a contact head (31), the exterior of the contact head (31) being movably connected to the interior of the housing (1), a power contact piece (32) being mounted at the rear end of the contact head (31), and a rear contact piece (33) being mounted at the bottom of the power contact piece (32).

3. A high voltage corrosion resistant copper contact according to claim 2, characterized in that: The rear end of the contact head is fixedly connected to the front end of the electrical contact piece (32).

4. A high voltage corrosion resistant copper contact according to claim 3, characterized in that: The bottom of the power contact sheet (32) is fixedly connected to the top of the rear contact sheet (33), and the contact head (31), the power contact sheet (32) and the rear contact sheet (33) form an "L" shape.

5. The high voltage corrosion resistant copper contact according to claim 1, characterized in that: The connecting mechanism (4) comprises a lead-out terminal (41), the outer end of the lead-out terminal (41) is symmetrically fixedly connected to the middle of the upper and lower ends of the housing (1), a power connection sheet (42) is fixedly installed at the bottom of the lead-out terminal (41), and a limit frame (43) is symmetrically installed on the upper and lower sides of the interior of the housing (1), and the opposite surfaces of the limit frame (43) are elastic connecting sheets (44), and the surface of the elastic connecting sheet (44) is provided with a heat dissipation hole (45), and a spring (46) is installed inside the limit frame (43).

6. A high voltage corrosion resistant copper contact according to claim 5, characterized in that: The bottom end of the power connection piece (42) is fixedly connected to the middle of the top of the limiting frame (43).

7. A high voltage corrosion resistant copper contact according to claim 6, characterized in that: The bottom end of the spring (46) is fixedly connected to both sides of the top inner wall of the limit frame (43), and the other end is fixedly connected to the bottom inner wall of the limit frame (43). The lower end of the elastic connecting piece (44) is symmetrically fixedly connected to both ends of the electrical contact piece (32).

8. The high voltage corrosion resistant copper contact according to claim 1, characterized in that: The bolt (6) is threadedly connected to the screw hole (7), and the interior of the slot (5) is movably connected to the exterior of the contact head (31).

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