Induction type electric contact device
Through inductive contact design, the induction electrical contact device solves the poor contact problems caused by contact oxidation and contamination, and improves the conduction performance and service life.
Patent Information
- Application Number
- CN202421958194.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-13
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-13
AI Technical Summary
The existing density electrical contact devices have contact oxidation or contamination, which leads to poor contact, affects the conductivity, and are prone to arc drawing and ablation.
The induction electrical contact device is adopted to form a conductive state through the non-fitting contact design of the inductive member and the conductive member by moving the inductive part and the conductive end to avoid direct contact between the contacts.
It reduces the loss and contamination of contacts, avoids arc-pull ablation, and improves the conduction performance and the long-term service life of the equipment.
Smart Images
Figure CN223079030U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of electrical equipment, and more particularly to an inductive electrical contact device. Background Art
[0002] The SF6 (sulfur hexafluoride) gas density electrical contact device is widely used in gas density relays, and the gas density electrical contact device is a key component of the SF6 gas density relay. It can be used to reduce the SF6 gas density in the gas chamber of SF6 high-voltage electrical equipment, and when there is a gas leak in the gas chamber, it can send signals for gas replenishment and locking to ensure the safe operation of the equipment.
[0003] However, the existing density electrical contact devices have the following defects: The density electrical contact devices in the related technologies all adopt the form of fitting contact between contacts. The fitting contact electrical contact device will have the phenomenon of arc ablation during use. At the same time, if the contact electrical contact device is used for a long time, the contact part of the electrical contact device will be contaminated or oxidized, thus causing poor contact and affecting the conduction performance of the product, reducing the use accuracy of the electrical contact device. Therefore, the problems of the conventionally arranged contact electrical contact devices are long-standing pain points in the electrical field and are difficult to solve. Summary of the Invention
[0004] The purpose of this application is to achieve non-direct-contact conduction of the electrical contact device, reduce the poor contact caused by contact oxidation or contamination, and thus improve the conduction performance of the electrical contact device for the product.
[0005] To achieve the above object, the technical solution adopted in this application is: to provide an inductive electrical contact device, including: a bracket assembly; a first contact assembly, the first contact assembly includes an inductor, one end of the first contact assembly is connected to the bracket assembly, the other end of the first contact assembly is connected to the inductor, and the inductor is provided with an induction part; a second contact assembly, one end of the second contact assembly is connected to the bracket assembly, and when and only when the other end of the second contact assembly moves into the induction part, the first contact assembly and the second contact assembly form a conduction state.
[0006] As a preference, the second contact assembly includes: a first conductive member and a second conductive member, one end of the first conductive member is connected to the bracket assembly, and the second conductive member is movably connected to the other end of the first conductive member; wherein, when the second conductive member moves into the induction part, the first contact assembly and the second contact assembly form a conduction state.
[0007] As another preference, the second contact assembly further includes: a bearing seat, and the first conductive member and the second conductive member are rotationally connected through the bearing seat.
[0008] Further preferably, the second conductive member includes a conductive end and a connecting rod. The conductive end and the connecting rod are integrally formed. The connecting rod is rotatably connected to the first conductive member. The connecting rod swings relative to the first conductive member to drive the conductive end to cut into the induction portion, so that the first contact assembly and the second contact assembly form a conduction state.
[0009] Further, the conductive end and the induction portion are in contact and inductive in a plane-to-plane manner.
[0010] Further, the conductive end has a fan-shaped structure.
[0011] Preferably, multiple groups of the first contact assemblies and the second contact assemblies are provided, and the multiple groups of the first contact assemblies and the multiple groups of the second contact assemblies are conductively connected in one-to-one correspondence.
[0012] Preferably, the multiple groups of the first contact assemblies and the multiple groups of the second contact assemblies are connected in a stacked manner; the electrical contact device further includes a plurality of spacer blocks. The multiple groups of the first contact assemblies are separated by the spacer blocks, and the multiple groups of the second contact assemblies are separated by the spacer blocks.
[0013] Preferably, the first contact assembly and the second contact assembly are separated by a first plate body, and the first plate body covers the second contact assembly.
[0014] Further, the first plate body is provided with a protruding portion.
[0015] Compared with the prior art, the beneficial effects of the present application are as follows:
[0016] The electrical contact device realizes inductive contact between contacts by setting an inductor. The inductive contact in this application document is a non-conforming contact conduction. Furthermore, it is not necessary for the contacts to conduct through conforming contact, which reduces the loss between the contacts to a certain extent, avoids the phenomenon of arcing and ablation that occurs in conforming contact, and at the same time, the switch using the inductor for a long time can effectively avoid the pollution or oxidation of the contacts. The device has excellent conduction performance and effectively increases the long-term service life of the electrical contact device. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a structural schematic diagram of the inductive electrical contact device;
[0018] Figure 2 is a side view of the inductive electrical contact device;
[0019] Figure 3 is a structural schematic diagram of the inductive electrical contact device from an isometric side view;
[0020] Figure 4 Explosion schematic diagram of an inductive electric contact device;
[0021] Figure 5 Structural schematic diagram of the second contact assembly.
[0022] In the figure: 1. Inductive electric contact device; 10. Bracket assembly; 11. Support plate; 12. Bracket base; 13. Grounding part; 20. First contact assembly; 21. Inductive part; 22. Conductive plate; 23. Magnetic limiting frame; 211. Inductive portion; 30. Second contact assembly; 31. First conductive part; 32. Second conductive part; 321. Conductive end; 322. Link; 33. Bearing seat; 34. Torsion spring; 40. Spacer; 50. First plate body; 51. Protrusion; 60. Screw; 70. Nut; 80. Conductive sheet. Specific embodiments
[0023] Next, in combination with specific embodiments, the present application will be further described. It should be noted that, on the premise of no conflict, the following described embodiments or technical features can be arbitrarily combined with each other to form new embodiments.
[0024] In the description of the present application, it should be noted that for orientation terms, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and position relationships indicated are based on the orientation or position relationships shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present application.
[0025] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence.
[0026] The terms "including" and "having" in the description and claims of the present application, and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.
[0027] As a preferred embodiment, specifically refer to Figures 1 to 5, this embodiment provides an inductive electrical contact device 1, comprising: a bracket assembly 10; a first contact assembly 20, the first contact assembly 20 includes an induction member 21, one end of the first contact assembly 20 is connected to the bracket assembly 10, the other end of the first contact assembly 20 is connected to the induction member 21, and the induction member 21 is provided with an induction portion 211; a second contact assembly 30, one end of the second contact assembly 30 is connected to the bracket assembly 10, and when and only when the other end of the second contact assembly 30 moves into the induction portion 211, the first contact assembly 20 and the second contact assembly 30 form a conducting state.
[0028] The first contact assembly 20, the second contact assembly 30 and the bracket assembly 10 are stacked. Preferably, the first contact assembly 20, the second contact assembly 30 and the bracket assembly 10 are fixed by a screw 60 passing through a mating nut 70. The bracket assembly 10 is composed of a support plate 11 and a bracket base 12. The first contact assembly 20 and the second contact assembly 30 are stacked on the bracket base 12, and the support plate 11 is located at the top. The support plate 11 cooperates with the bracket base 12 to support and limit the first contact assembly 20 and the second contact assembly 30.
[0029] The first contact assembly 20 is specifically composed of a conductive plate 22 and a magnetic limiting frame 23. An induction member 21 is connected to the end of the magnetic limiting frame 23 away from the conductive plate 22. At the same time, the induction portion 211 of the induction member 21 is specifically an open groove structure, and the induction member 21 is an induction switch, or an inductive, electronic or pneumatic switch. The induction portion 211 faces the second contact assembly 30. Similarly, one end of the first contact assembly 20 is stacked with the bracket assembly 10. The first contact assembly 20 is a conductive structure. When the other end of the first contact assembly 20 extends into the induction portion 211, the induction switch completes the induction, realizes the opening of the induction switch, and thus completes the conduction between the first contact assembly 20 and the second contact assembly 30.
[0030] As a preference, the second contact assembly 30 includes: a first conductive member 31 and a second conductive member 32. One end of the first conductive member 31 is connected to the bracket assembly 10, and the second conductive member 32 is movably connected to the other end of the first conductive member 31; wherein, when the second conductive member 32 moves into the induction portion 211, the first contact assembly 20 and the second contact assembly 30 form a conducting state.
[0031] Specifically, the first conductive member 31 is an inductive conductive plate 22, and the second conductive member 32 is an inductive conductive pin, both of which play a conductive role. The first conductive member 31 is fixedly arranged relative to the bracket assembly 10, while the second conductive member 32 can move relative to the first conductive member 31. Therefore, in the normal state, the second conductive member 32 is in a position far from the sensing member 21 and does not coincide with the sensing portion 211. When signals such as gas leakage or gas replenishment occur in the device, the second conductive member 32 gradually approaches the sensing member 21, achieving the coincidence of the second conductive member 32 relative to the sensing portion 211, thereby realizing the conduction of the circuit. The control process is simple and convenient, and since the movement of the second conductive member 32 is controlled to complete the circuit conduction instead of directly controlling the second contact assembly 30, the control accuracy can be effectively improved.
[0032] As another preference, the second contact assembly 30 further includes: a bearing seat 33, and the first conductive member 31 and the second conductive member 32 are rotatably connected through the bearing seat 33.
[0033] The first conductive member 31 and the second conductive member 32 are rotatably connected through the bearing seat 33, so that the second conductive member 32 presents a swinging movement centered on the bearing seat 33 relative to the first conductive member 31 during the control process, improving the control accuracy of the movement of the second conductive member 32 to a certain extent and ensuring the conduction sensitivity of the inductive electrical contact device 1. At the same time, the setting of the bearing seat 33 can improve the overall service life of the device, realizing the split connection between the first conductive member 31 and the second conductive member 32. When the second conductive member 32 is damaged, only the bearing seat 33 needs to be disassembled to replace the second conductive member 32, which is time-saving and labor-saving. Among them, a torsion spring 34 structure is also provided on the outer wall of the bearing seat 33. The torsion spring 34, the first conductive member 31, and the second conductive member 32 are coaxially arranged. The torsion spring 34 has a high fatigue limit, has the ability to resist fatigue damage under long-term vibration and alternating stress, and can withstand a certain impact load, which can further improve the service life of the overall inductive electrical contact device 1.
[0034] Further preferably, the second conductive member 32 includes a conductive end 321 and a connecting rod 322. The conductive end 321 and the connecting rod 322 are integrally formed. The connecting rod 322 is rotatably connected to the first conductive member 31, and the connecting rod 322 swings relative to the first conductive member 31 to drive the conductive end 321 to cut into the sensing portion 211, so that the first contact assembly 20 and the second contact assembly 30 form a conductive state.
[0035] The above specifically describes the structure of the second conductive member 32. The integrally formed second conductive member 32 has high strength and can improve the service life of the second conductive member 32 to a certain extent.
[0036] Preferably, the conductive end 321 contacts and senses the sensing part 211 in a plane-to-plane manner. The sensing part 211 is a groove opening structure, and the conductive end 321 is a plate-like structure. When the conductive end 321 cuts into the sensing part 211, the top surface and the bottom surface of the sensing part 211 correspond to the plate body of the conductive end 321, thereby completing the sensing effect of the sensing member 21.
[0037] Further, the conductive end 321 is a sector structure, and the sensing area of the sector-structured conductive end 321 is equivalent to the sensing area of the sensing part 211. At the same time, after fixing the longitudinal length of the second conductive member 32, the sector-structured conductive end 321 can effectively increase the lateral sensing area, improve the sensing effect of the second conductive member 32 relative to the sensing member 21, and can effectively avoid the situation where the conductive end 321 is not sensed by the sensing part 211.
[0038] Preferably, for specific reference, see Figure 2 and Figure 4 , multiple groups of the first contact component 20 and the second contact component 30 are provided, and the multiple groups of the first contact component 20 and the multiple groups of the second contact component 30 are conductively connected in one-to-one correspondence.
[0039] Preferably, two groups of the first contact component 20 and the second contact component 30 are provided to improve the conduction effect.
[0040] Preferably, the multiple groups of the first contact component 20 and the multiple groups of the second contact component 30 are connected in a stacked manner; the electrical contact device further includes a plurality of spacer blocks 40. The multiple groups of the first contact component 20 are separated by the spacer blocks 40, and the multiple groups of the second contact component 30 are separated by the spacer blocks 40.
[0041] The spacer block 40 is specifically made of an insulating material. A spacer block 40 or an insulating plate needs to be clamped between two conductive sheets 80, effectively avoiding the high-voltage breakdown of the first contact component 20 or the second contact component 30.
[0042] At the same time, the thickness of the spacer block 40 has a certain variation. The thickness of the spacer block 40 near the support base 12 is larger, and the thickness of the spacer block 40 closer to the support plate 11 is smaller. A conductive sheet 80 is clamped between two spacer blocks 40 near the support base 12. Similarly, a conductive sheet 80 is clamped between two spacer blocks 40 near the support plate 11. Therefore, without changing the original product structure, by increasing the thickness of the bottom spacer block 40 and decreasing the thickness of the top spacer block 40 to increase the distance between the upper and lower groups of switches, the phase insulation performance of the product can be improved in the extreme state, the defective rate of the product can be greatly reduced, and the production efficiency can be improved.
[0043] Preferably, the first contact assembly 20 and the second contact assembly 30 are separated by the first plate body 50. The first plate body 50 covers the second contact assembly 30. The first plate body 50 is an insulating plate, which can effectively prevent the inductive electrical contact device 1 in this embodiment from being damaged due to excessive voltage breakdown.
[0044] Further, the first plate body 50 is provided with a convex portion 51, and the convex portion 51 is provided to facilitate the wire of the connecting device to pass through.
[0045] Further, a grounding member 13 is also provided on the bracket base 12, and then it is connected to the relay case. Because in actual use, a grounding structure is mostly provided on the relay case, the ground connection of the inductive electrical contact device 1 of the present application can be realized, which adds ground safety protection to the product of the present application.
[0046] The foregoing has described the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present application. Without departing from the spirit and scope of the present application, the present application will have various changes and improvements, and these changes and improvements all fall within the scope of the present application claimed. The scope of protection required by the present application is defined by the appended claims and their equivalents.
Claims
1. An inductive electric contact device, characterized in that, Comprising: A bracket assembly; A first contact assembly, the first contact assembly includes a sensing member, one end of the first contact assembly is connected to the bracket assembly, the other end of the first contact assembly is connected to the sensing member, and the sensing member is provided with a sensing portion; A second contact assembly, one end of the second contact assembly is connected to the bracket assembly, and when and only when the other end of the second contact assembly moves into the sensing portion, the first contact assembly and the second contact assembly form a conducting state.
2. The inductive electric contact device according to claim 1, characterized in that, The second contact assembly includes: A first conductive member and a second conductive member, one end of the first conductive member is connected to the bracket assembly, and the second conductive member is movably connected to the other end of the first conductive member; Wherein, when the second conductive member moves into the sensing portion, the first contact assembly and the second contact assembly form a conducting state.
3. The inductive electric contact device according to claim 2, characterized in that, The second contact assembly further includes: A bearing seat, the first conductive member and the second conductive member are rotatably connected through the bearing seat.
4. The inductive electrical contact device according to claim 2, wherein The second conductive member includes a conductive end and a connecting rod, the conductive end and the connecting rod are integrally formed, the connecting rod is rotatably connected to the first conductive member, and the connecting rod swings relative to the first conductive member to drive the conductive end to cut into the sensing portion, so that the first contact assembly and the second contact assembly form a conducting state.
5. The inductive electrical contact device according to claim 4, wherein The conductive end and the sensing portion are in contact and sensed in a plane-to-plane manner.
6. The inductive electrical contact device according to claim 5, wherein The conductive end is a fan-shaped structure.
7. The inductive electrical contact device according to any one of claims 1-6, wherein Multiple sets of the first contact assembly and the second contact assembly are provided, and multiple sets of the first contact assembly and multiple sets of the second contact assembly are conductively connected in one-to-one correspondence.
8. The inductive electrical contact device according to claim 7, wherein Multiple sets of the first contact assembly and multiple sets of the second contact assembly are connected in a stacked manner; The electrical contact device further includes a plurality of spacer blocks, multiple sets of the first contact assembly are separated by the spacer blocks, and multiple sets of the second contact assembly are separated by the spacer blocks.
9. The inductive electrical contact device according to any one of claims 1-6, wherein The first contact assembly and the second contact assembly are separated by a first plate body, and the first plate body covers the second contact assembly.
10. The inductive electrical contact device according to claim 9, wherein The first plate body is provided with a convex portion.