Integrated copper pipe disconnecting switch contact structure

Abstract

The utility model discloses an integrated copper pipe disconnecting switch contact structure, which relates to the technical field of electrical automation and comprises two static contacts and a copper pipe contact, the two static contacts are respectively arranged at the upper end and the lower end of the copper pipe contact, the static contacts are detachably connected with the copper pipe contact, and the copper pipe contact is detachably connected with the static contacts. A square tube is arranged in the middle of the copper tube contact, the square tube is perpendicular to the central axis of the copper tube contact and penetrates through the copper tube contact, the square tube can drive the copper tube contact to rotate by taking itself as the center, the static contact is provided with a first clamping spring assembly, and the first clamping spring assembly comprises a plurality of V-shaped springs and an embedded rod. The isolating switch has the beneficial effects that the copper pipe is designed into an isolating switch knife body, the electric field and temperature rise performance is improved, the two ends of the copper pipe adopt an integrated extension contact finger flat plate structure, the flat plate is divided into a plurality of contact fingers, and each contact value structure is controlled by an independent pressure spring, so that the contact between a static contact and a copper pipe contact is reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical automation, in particular to an integrated copper tube isolating switch contact structure. Background Art

[0002] With the extensive use of inflatable cabinet products, the isolating switches in the switch cabinets are all traditional structures, which cannot meet the electric field and temperature rise performance requirements at the same time. The traditional structural design has little effect on improving the performance of the product. The innovation of the isolating switch structure is the key to the current breakthrough in product design structure. The technical contents disclosed in the Chinese patent document (application number: CN202320758725.1, patent name: A contact structure of an isolating switch) are: "It includes an insulator, a blade, a fastening frame and a mating plate. The two ends of the insulator are respectively installed with a base and an assembly frame, and the outer surface of the assembly frame is installed with a contact body. The two ends of the blade are fixed with contact pieces, and the outer surface of the contact piece is provided with a heat dissipation hole. The outer surface of the contact piece is fixed with a fastening plate, and the outer surface of the fastening plate is respectively provided with a plug-in slot and an auxiliary slot. The outer surface of the fastening frame is provided with a fastening slot, and the inner wall of the fastening slot is fixed with a plug-in block. The utility model not only increases the contact area, but also enhances its heat dissipation efficiency by arranging an insulator, a blade, a fastening frame, a mating plate, a base, an assembly frame, a contact body, a contact piece, a heat dissipation hole, a fastening plate, a plug-in slot, an auxiliary slot, a fastening slot and a plug-in block, thereby increasing the service life of the entire switch." However, the problem with the above technology is that the blade area is small, and it is difficult to ensure the stability of the electrical connection by fixing it with a simple fastening frame. Therefore, an integrated copper tube isolating switch contact structure is urgently needed to solve the above problem. Utility Model Content

[0003] In view of the above technical defects, the utility model provides an integrated copper tube isolating switch contact structure to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solution: an integrated copper tube isolating switch contact structure, comprising a static contact and a copper tube contact, wherein the number of the static contacts is two, which are respectively arranged at the upper and lower ends of the copper tube contact, and the static contact and the copper tube contact are detachably connected, and a square tube is arranged in the middle of the copper tube contact, wherein the square tube is perpendicular to the central axis of the copper tube contact and passes through the copper tube contact, and the square tube can drive the copper tube contact to rotate with itself as the center.

[0005] Preferably, the stationary contact is provided with a first clamping spring assembly, which includes a plurality of V-shaped springs and an embedded rod, wherein the embedded rod is parallel to the side of the stationary contact and the embedded rod passes through the plurality of V-shaped springs.

[0006] Preferably, the first clamping spring assembly is connected to a stationary contact finger, and the stationary contact finger is rotatably connected to the stationary contact.

[0007] Preferably, the copper tube contact is cylindrical, with a cavity inside, and two ends converge toward the central axis to form a first opening and a second opening, and the first opening and the second opening have the same structure.

[0008] Preferably, a first moving contact finger, a second moving contact finger, a third moving contact finger and a fourth moving contact finger are provided on the first opening, and the first moving contact finger, the second moving contact finger, the third moving contact finger and the fourth moving contact finger are all penetrated by four groups of second clamping spring assemblies.

[0009] Preferably, the second clamping spring assembly includes a spring body, a long screw and a nut, the four long screws pass through the first moving contact finger, the second moving contact finger, the third moving contact finger and the fourth moving contact finger, and the spring body and the nut are provided at both ends of the long screw.

[0010] Preferably, a central hole is provided in the middle of the copper tube contact, and the square tube passes through the cavity through the central hole.

[0011] Compared with the prior art, the beneficial effects of the integrated copper tube isolating switch contact structure of the utility model are: the device is set up by designing the copper tube as the isolating switch blade body, thereby improving the electric field and temperature rise performance, and the two ends of the copper tube adopt an integrated extended contact finger flat plate structure, the flat plate is divided into multiple contact fingers, and each contact value structure is controlled by an independent compression spring, so that the static contact and the copper tube contact are in reliable contact. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a cross-sectional view of the utility model;

[0014] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0015] Figure 4 for Figure 2 The enlarged schematic diagram of point B in the middle;

[0016] Figure 5 It is a schematic diagram of the structure of the copper tube contact;

[0017] Figure 6 This is a cross-sectional view of the copper tube contact.

[0018] In the figure: 1-static contact, 2-first clamping spring assembly, 201-V-shaped spring, 202-embedded rod, 3-static contact finger, 4-copper tube contact, 401-first moving contact finger, 402-second moving contact finger, 403-third moving contact finger, 404-fourth moving contact finger, 405-cavity, 406-first opening, 407-second opening, 408-middle hole, 5-second clamping spring assembly, 501-spring body, 502-long screw, 503-nut, 6-square tube. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Please see attached Figure 1-6 The utility model provides an embodiment: an integrated copper tube isolating switch contact structure, including a static contact 1 and a copper tube contact 4. The number of static contacts 1 is two, which are respectively arranged at the upper and lower ends of the copper tube contact 4. The static contact 1 and the copper tube contact 4 are detachably connected. A square tube 6 is arranged in the middle of the copper tube contact 4. The square tube 6 is perpendicular to the central axis of the copper tube contact 4 and penetrates the copper tube contact 4. The square tube 6 can drive the copper tube contact 4 to rotate with itself as the center. This embodiment adopts an optimized design to provide good electric field and temperature rise performance. The copper tube contact 4 has good electrical conductivity and heat diffusion capacity. On the whole, the structure provides reliable and efficient isolating switch performance.

[0021] The stationary contact 1 is provided with a first clamping spring assembly 2 , which includes a plurality of V-shaped springs 201 and an embedded rod 202 . The embedded rod 202 is parallel to the side of the stationary contact 1 , and the embedded rod 202 penetrates the plurality of V-shaped springs 201 .

[0022] The first clamping spring assembly 2 is connected with a stationary contact finger 3 , and the stationary contact finger 3 is rotatably connected to the stationary contact 1 .

[0023] The structure of the first clamping spring assembly 2 is a combination of a V-shaped spring 201 and an embedded rod 202, which is intended to provide sufficient elastic force and pressure to ensure reliable contact between the stationary contact finger 3 and the copper tube contact 4. The V-shaped shape and arrangement of the V-shaped spring 201 provide it with good elastic properties and resilience to adapt to the rotation of the stationary contact finger 3.

[0024] The setting of the embedded rod 202 helps to evenly distribute the pressure and effectively transmit the rotational torque. With the support of the embedded rod 202, the spring assembly 2 can provide stable pressure to ensure that the static contact finger 3 and the copper tube contact 4 always maintain reliable contact. It is ensured that during the isolation and power-on process, the static contact finger 3 can always be in stable contact with the copper tube contact 4 to provide a reliable electrical connection.

[0025] The copper tube contact 4 is cylindrical, with a cavity 405 inside, and two ends converge toward the central axis to form a first opening 406 and a second opening 407. The first opening 406 has the same structure as the second opening 407. A central hole 408 is provided in the middle of the copper tube contact 4, and the square tube 6 passes through the cavity 405 through the central hole 408.

[0026] The first opening 406 is provided with a first moving contact finger 401 , a second moving contact finger 402 , a third moving contact finger 403 , and a fourth moving contact finger 404 . The first moving contact finger 401 , the second moving contact finger 402 , the third moving contact finger 403 , and the fourth moving contact finger 404 are all penetrated by four sets of second clamping spring assemblies 5 .

[0027] The cylindrical shape of the copper tube contact 4 is formed by pressing the openings at both ends with a special mold, forming a flat knife switch contact structure as a whole, which enhances the strength and stability of the structure. The setting of the middle hole 408 allows the square tube 6 to pass through the entire cavity 405, providing the copper tube contact 4 with the ability to rotate.

[0028] The moving contact fingers 401-404 on the first opening 406 are clamped and stabilized by four sets of second clamping spring assemblies 5. The width of the first opening 406 and the second opening 407 is adjustable to a certain extent, and the opening size of the first opening 406 and the second opening 407 can be adjusted according to the model of the static contact 1.

[0029] The static contact finger 3 of the static contact 1 is in independent contact with the moving contact fingers 401-404, avoiding the skin effect of the traditional flat knife switch, and the copper tube contact 4 will cause the hot air in the tube to produce a chimney effect during use. The hot air can be accelerated to flow from the first opening 406, the cavity 405, and the first opening 406 in sequence, accelerating convection heat dissipation. This integrated structure will greatly improve the reliability of contact contact, enhance the temperature rise performance and reliability of use.

[0030] The second clamping spring assembly 5 includes a spring body 501, a long screw 502, and a nut 503. The four long screws 502 penetrate the first moving contact finger 401, the second moving contact finger 402, the third moving contact finger 403, and the fourth moving contact finger 404. The spring body 501 and the nut 503 are provided at both ends of the long screw 502. The second clamping spring assembly 5 provides an independent clamping mechanism for the moving contact fingers 401-404, further improving the electrical connection tightness performance of the copper tube contact 4 and the static contact 1.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An integrated copper tube isolating switch contact structure, characterized in that: The invention comprises a stationary contact (1) and a copper tube contact (4), wherein the number of the stationary contacts (1) is two and they are arranged at the upper and lower ends of the copper tube contact (4) respectively, the stationary contact (1) and the copper tube contact (4) are detachably connected, a square tube (6) is arranged in the middle of the copper tube contact (4), the square tube (6) is perpendicular to the central axis of the copper tube contact (4) and passes through the copper tube contact (4), and the square tube (6) can drive the copper tube contact (4) to rotate with itself as the center.

2. The integrated copper tube isolating switch contact structure according to claim 1, characterized in that: The stationary contact (1) is provided with a first clamping spring assembly (2), the first clamping spring assembly (2) comprising a plurality of V-shaped springs (201) and an embedded rod (202), the embedded rod (202) being parallel to a side of the stationary contact (1), and the embedded rod (202) penetrating the plurality of V-shaped springs (201).

3. The integrated copper tube isolating switch contact structure according to claim 2, characterized in that: The first clamping spring assembly (2) is connected to a stationary contact finger (3), and the stationary contact finger (3) is rotatably connected to the stationary contact (1).

4. The integrated copper tube isolating switch contact structure according to claim 1, characterized in that: The copper tube contact (4) is cylindrical, with a cavity (405) inside, and two ends converge toward the central axis to form a first opening (406) and a second opening (407), and the first opening (406) and the second opening (407) have the same structure.

5. The integrated copper tube isolating switch contact structure according to claim 4, characterized in that: A first moving contact finger (401), a second moving contact finger (402), a third moving contact finger (403) and a fourth moving contact finger (404) are provided on the first opening (406); the first moving contact finger (401), the second moving contact finger (402), the third moving contact finger (403) and the fourth moving contact finger (404) are all penetrated by four groups of second clamping spring assemblies (5).

6. The integrated copper tube isolating switch contact structure according to claim 5, characterized in that: The second clamping spring assembly (5) comprises a spring body (501), a long screw rod (502), and a nut (503); the four long screw rods (502) penetrate the first moving contact finger (401), the second moving contact finger (402), the third moving contact finger (403), and the fourth moving contact finger (404); and the spring body (501) and the nut (503) are provided at both ends of the long screw rod (502).

7. The integrated copper tube isolating switch contact structure according to claim 4, characterized in that: A central hole (408) is provided in the middle of the copper tube contact (4), and the square tube (6) passes through the cavity (405) through the central hole (408).

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