A vibration-proof contactor and a method of using the same

Abstract

The application discloses a kind of anti-vibration contactors and its using method, it is related to contactor technical field, including shell, further include: positioning rod, it is set to the downside of shell;Support part, it is set to the outer surface of positioning rod, including buffer block and multiple sets of clamping plate, when contactor occurs vibration, buffer block and multiple sets of clamping plate position change and support and limit positioning rod;Moving part, it is set to the outer surface of support part, including mounting ring, when contactor occurs vibration, mounting ring moves upward and rotates and changes the friction position of clamping plate end and mounting ring inner wall;Limiting part, it is set to the inside of moving part, including limiting block;The application is realized contactor vibration force buffering isolation by buffer block, clamping plate, expansion piece drives mounting ring to move up and dissipate heat, adjust friction position, prevent local wear;Limiting block corrects the eccentric load of positioning rod, restricts clamping plate vibration amplitude, can lock clamping plate and prevent contactor displacement, prolong service life.

Description

Technical Field

[0001] This invention relates to the field of contactor technology, and in particular to a vibration-damping contactor and its usage method. Background Technology

[0002] As a core actuator in electrical control systems, contactors are widely used in circuit switching control scenarios of various equipment in industrial production, power distribution, rail transit, and civil electrical systems. Their operational stability directly determines the safe and reliable operation of the entire electrical system. Vibration resistance is the core key to ensuring the normal operation of contactors under conditions such as equipment vibration and external environmental shaking. The installation positioning and vibration buffer design of contactors are important process means to control their vibration resistance performance.

[0003] Chinese Patent Publication No. CN104584173A discloses an electromagnetic contactor, including a housing that is insulated; a fixed iron core housed in the housing; a movable iron core disposed opposite to the fixed iron core; and a coil wound around the fixed iron core, which generates an attractive force for contacting the fixed iron core and the movable iron core by energizing it.

[0004] The above-mentioned technical solutions have many significant defects in practical applications. The existing connection between the contactor and the housing is mostly rigid and fixed. The vibration force generated by the contactor is directly transmitted to the housing without buffering. As a result, the connection part is subjected to repeated vibration and impact for a long time, which can easily cause fatigue wear, loosening or even cracking of the connection structure, seriously affecting the connection stability.

[0005] Meanwhile, the high-frequency relative friction between the clamping plate and the mounting ring due to continuous vibration generates a large amount of heat that easily forms a thermally sealed state inside the mounting ring cavity, making it difficult to dissipate to the outside. This accumulated heat will be continuously conducted to the core electrical components inside the contactor through the positioning structure, causing continuous thermal damage and aggravating the heat loss of electrical components. This not only reduces the operating accuracy of the contactor but also significantly shortens its overall service life. Since the frictional contact position between the clamping plate and the mounting ring is always fixed, long-term localized continuous friction can easily cause excessive wear and plastic deformation in the contact area, resulting in a gradual increase in the gap between the two. This directly weakens the support and limiting effect of the mounting ring on the clamping plate, causing the installation and positioning stability of the contactor to continuously decline.

[0006] Furthermore, during the prolonged vibration of the contactor body and the adaptive cooling process, the vibration amplitude is likely to gradually increase, which in turn causes secondary mechanical damage to its internal structure and the connection points of various components. This can easily lead to a chain of faults such as loose components, structural deformation, and poor circuit contact, further reducing the operational reliability of the contactor.

[0007] In addition, if there is a slight off-center load during the installation of the contactor, or if long-term vibration causes radial displacement of the positioning rod, it will lead to uneven force on the contactor and increased local wear, which will aggravate the vibration damage of the contactor, resulting in problems such as cracking of the mounting position and jamming of components.

[0008] When the enclosure encounters extreme operating conditions such as collision, tipping, or violent shaking, the plate will attempt to break free from the enclosure's limiting constraints due to inertia, thereby causing the contactor body to shift significantly within the enclosure, resulting in a hard collision with other supporting structures inside the enclosure.

[0009] Therefore, it is particularly necessary to develop an anti-vibration contactor and its usage method that combines dual-dimensional vibration isolation, efficient heat dissipation from frictional heat accumulation, dynamic adjustment of friction position, emergency locking under extreme working conditions, and intelligent protection under high load. Summary of the Invention

[0010] The purpose of this invention is to provide a vibration-damping contactor and its usage method to solve the problems mentioned in the background art.

[0011] To achieve the above objectives, the present invention provides the following technical solution: a vibration-damping contactor, comprising a housing, and further comprising: A positioning rod is located on the lower side of the housing; The support part, which is located on the outer surface of the positioning rod, includes a buffer block and multiple sets of clamping plates. When the contactor vibrates, the position of the buffer block and multiple sets of clamping plates changes and supports and limits the positioning rod. The movable part, which is disposed on the outer surface of the support part, includes a mounting ring. When the contactor vibrates, the mounting ring moves upward and rotates to change the friction position between the end of the card plate and the inner wall of the mounting ring. The limiting part, which is located inside the moving part, includes a limiting block. The mounting ring drives the limiting block to rotate and change the contact position with the upper end of the card plate.

[0012] Preferably, multiple sets of positioning rods are provided to provide support and limit the housing; multiple sets of clamping plates are provided and fixedly connected to the outer surface of the positioning rods to buffer the vibration of the positioning rods in the horizontal direction; and buffer blocks are provided at the lower end of the positioning rods to buffer the vibration of the positioning rods in the vertical direction.

[0013] Preferably, the moving part further includes: A fixed sleeve is provided on the outside of the mounting ring, and the position of the fixed sleeve is fixed. The rotating plate, located inside the fixed housing, is used to drive the mounting ring to rotate. After the contactor is installed, the bottom of the buffer block and the upper end of the rotating plate make elastic compression contact to buffer the vertical vibration of the positioning rod.

[0014] Preferably, the moving part further includes: A drive rod, located at the bottom of the rotating plate, is used to drive the rotating plate to rotate; The expansion component is located inside the fixed sleeve. One end is connected to the lower surface of the mounting ring, and the other end is connected to the upper surface of the rotating plate. When the clamping plate rubs against the inner wall of the mounting ring, the expansion component expands and deforms due to heat, causing the mounting ring to move upward.

[0015] Preferably, the mounting ring has multiple sets of insertion holes evenly spaced inside. The insertion holes are L-shaped and have friction components slidably connected inside. The ends of the friction components are provided with baffles. The fixed sleeve has a limit groove inside, and the baffles correspond to the insertion holes. When the contactor tilts, the mounting ring rotates, causing the insertion holes to coincide with the limit grooves. The friction components are inserted into the limit grooves, and the baffles engage with the insertion holes, supporting and limiting the sidewalls of the baffles.

[0016] Preferably, multiple sets of circumferential arrays of limiting blocks are arranged on the inner surface of the mounting ring. The lower surface of the limiting block is a wedge-shaped surface, and the height of the wedge-shaped surface gradually decreases from one end of the friction element to the other end. The limiting block rotates synchronously with the mounting ring to limit the vertical vibration distance of the card plate.

[0017] Preferably, the inner wall of the insertion hole is uniformly provided with multiple sets of movable parts, and the other end of the movable parts is fixedly connected to the side wall of the baffle. When the internal temperature of the mounting ring rises, the movable parts are heated and expand, and drive the friction parts to move away from the mounting ring through the baffle. The frictional pressure between the end of the friction parts and the inner wall of the fixed sleeve is reduced.

[0018] Preferably, the outer surface of the mounting ring is in a sealed sliding connection with the inner wall of the fixing sleeve. The height of the fixing sleeve is greater than the height of the mounting ring. The mounting ring is made of heat dissipation material and has heat dissipation function. When the internal temperature of the mounting ring rises, the expansion member expands due to heat, causing the mounting ring to move upward.

[0019] A method for using a vibration damping contactor includes the following steps: S1. Press the outer shell to move the positioning rod and the clamping plate down and insert them into the mounting ring. The mounting ring drives the limit block to rotate and reach the top of the clamping plate. S2. When the contactor operates and generates vertical vibration force, the clamping plate and the inner wall of the mounting ring rub against each other and generate heat. The moving parts expand due to heat and drive the friction parts to move away from the mounting ring end through the baffle. The elastic compressive force between the friction parts and the mounting ring decreases. The expanding parts expand due to heat and drive the mounting ring to move upward and change the friction position between the clamping plate and the inner wall of the mounting ring. S3. When the contactor is installed off-center or tilted, the limit block rotates clockwise to press the plate downward, and the friction parts and the mounting ring are elastically pressed and limited. S4. When the contactor tilts, the limit block rotates counterclockwise to the maximum angle, the friction element is inserted and fixed into the limit groove, and the baffle supports and limits the side wall of the mounting ring.

[0020] The technical effects and advantages of this invention are as follows: 1. This invention, through the design of buffer block and card plate, changes the traditional rigid fixed installation mode, and can achieve buffering and isolation of vertical and horizontal vibration forces of the contactor. This prevents the vibration force of the contactor during operation from being directly transmitted to the housing, reducing the probability of fatigue wear, loosening and cracking of the connection parts, and protecting the structural integrity of the contactor housing and the housing mounting position.

[0021] 2. When the mounting ring is rubbed by the card plate for a long time, the present invention absorbs heat and expands through the expansion component, which drives the mounting ring to move upward, increases the contact area between the mounting ring and the outside air, accelerates the heat exchange and heat dissipation rate inside the cavity, reduces the accumulation of heat in the mounting ring, avoids continuous thermal damage to the core electrical components, improves the operating accuracy of the contactor and effectively extends its overall service life.

[0022] 3. This invention solves the problem of localized excessive wear caused by the fixed friction position between the clamping plate and the mounting ring by using a linkage design where the expansion component drives the vertical displacement of the mounting ring and the drive rod drives the circumferential rotation of the mounting ring. It achieves dynamic adjustment of the friction position between the clamping plate and the inner wall of the mounting ring in both vertical and horizontal directions, avoids excessive friction in a single area, and ensures the structural stability of the contactor during long-term operation.

[0023] 4. This device solves the problem of positioning rod tilting caused by slight off-center load or long-term vibration of the contactor by rotating the limiting block to squeeze the clamping plate. It prevents radial displacement of the positioning rod caused by slight off-center load or long-term vibration of the contactor, which would lead to uneven force and increased local wear, and avoids cracking of the installation position and component jamming caused by off-center load.

[0024] 5. This device effectively solves the problem of increased vibration amplitude in the clamping plate area caused by the upward movement of the clamping ring due to the structure design of the limiting block rotating synchronously with the mounting ring. It ensures that the wedge-shaped surface of the limiting block always abuts against the clamping plate surface, strictly constraining the vibration amplitude of the clamping plate within a preset reasonable range, avoiding secondary mechanical damage to the contactor body due to excessive vibration amplitude, and preventing loosening of internal components.

[0025] 6. In extreme working conditions such as contactor tipping over, the mounting ring drives the limiting block to rotate to the maximum angle, and the friction element is inserted and fixed with the limiting groove. The wedge-shaped surface and the stop block on the lower side of the limiting block limit the position of the card plate, preventing the contactor body from shifting relative to the housing, and avoiding hard collision with the matching structure inside the housing, thereby causing damage to the contactor. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the contactor structure of the present invention; Figure 2This is a schematic diagram of the overall internal structure of the housing of the present invention; Figure 3 This is a partial structural diagram of the outer casing of the present invention; Figure 4 This is a schematic diagram of the partial structure of the moving part of the present invention; Figure 5 This is a schematic diagram of the internal structure of the positioning rod part of the present invention; Figure 6 This is a schematic diagram of the internal structure of the mounting ring portion of the present invention; Figure 7 This is a partial structural diagram of the limiting block of the present invention; Figure 8 This is a schematic diagram of the internal structure of a portion of the fixed sleeve of the present invention; Figure 9 This is a partial structural diagram of the support portion of the present invention.

[0027] In the diagram: 1. Outer shell; 2. Positioning rod; 3. Distribution box; 4. Support part; 401. Buffer block; 402. Clamping plate; 5. Moving part; 501. Mounting ring; 502. Fixed sleeve; 503. Rotating plate; 504. Drive rod; 505. Expansion part; 506. Insertion hole; 6. Limiting part; 601. Limiting block; 602. Friction part; 603. Limiting groove; 604. Moving part; 605. Baffle. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example 1 The conventional installation method for contactors and distribution box 3 is mainly a rigid fixed connection. The vibration force generated during contactor operation is directly transmitted to distribution box 3 without any buffering medium. This causes the fixed connection to be subjected to repeated vibration impacts over a long period, easily leading to fatigue wear, loosening, or even cracking of the connection structure, reducing its operational stability. Furthermore, in actual use, the contactor vibration causes the positioning rod 2 to vibrate, continuously colliding rigidly with the inner wall of the mounting ring 501, thus causing vibration damage to the internal components of the contactor. The contactor vibration can also cause the positioning rod 2 to loosen from its slot in distribution box 3. In severe cases, the contactor may even detach completely, causing impact and deformation to the contactor body and secondary damage to other components inside the distribution box 3. In addition, the contactor plate 402 and the inner wall of the mounting ring 501 will generate high-frequency relative friction due to continuous vibration. The heat generated during the friction process is easy to accumulate inside the cavity of the mounting ring 501 and is difficult to dissipate quickly to the outside. This accumulated heat will cause continuous thermal damage to the contactor's internal components and core electrical components, which will not only reduce the contactor's operating accuracy but also significantly shorten its overall service life, while increasing the equipment's maintenance costs and failure rate.

[0030] This invention provides, for example Figures 1 to 9 The vibration-damping contactor shown includes a housing 1, which is installed in a distribution box 3. A support frame is fixedly connected inside the distribution box 3. Multiple slots are evenly distributed inside the support frame, and these slots are inserted into and fixed to a positioning rod 2. The housing 1 and the distribution box 3 are electrically connected via wires. The contactor also includes: a positioning rod 2, located on the lower side of the housing 1, for providing support; and a support part 4, located on the outer surface of the positioning rod 2, including a buffer block 401 and multiple sets of retaining plates 402. When the contactor vibrates, the positions of the buffer block 401 and the multiple sets of retaining plates 402 change and... The positioning rod 2 provides support and limits the movement; the moving part 5, which is located on the outer surface of the supporting part 4, includes a mounting ring 501. When the contactor vibrates, the mounting ring 501 moves upward and rotates to change the friction position between the end of the clamping plate 402 and the inner wall of the mounting ring 501; the limiting part 6, which is located inside the moving part 5, includes a limiting block 601. The mounting ring 501 drives the limiting block 601 to rotate and change the contact position with the upper end of the clamping plate 402. When the contactor tilts, the mounting ring 501 drives the limiting block 601 to rotate to the maximum angle to limit the clamping plate 402.

[0031] Multiple sets of positioning rods 2 are provided to support and limit the outer shell 1; multiple sets of clamping plates 402 are provided and fixedly connected to the outer surface of the positioning rods 2 to buffer the vibration of the positioning rods 2 in the horizontal direction; the upper half of the clamping plate 402 is trapezoidal to facilitate the limiting block 601 to limit it, and the lower half is arc-shaped to facilitate the clamping plate 402 to enter the interior of the mounting ring 501 and prevent damage caused by continuous bumping of the upper surface of the mounting ring 501 during installation; the buffer block 401 is set at the lower end of the positioning rod 2 to buffer the vibration of the positioning rod 2 in the vertical direction.

[0032] The movable part 5 also includes: a fixed housing 502, which is disposed on the outside of the mounting ring 501 and the fixed housing 502 is fixed in position. Therefore, the fixed housing 502 is fixedly installed in the slot opened inside the housing 3; a rotating plate 503, which is disposed inside the fixed housing 502 and rotatably connected to the fixed housing 502, for driving the mounting ring 501 to rotate. After the contactor is installed, the bottom of the buffer block 401 is elastically pressed against the upper end of the rotating plate 503 to buffer the vertical vibration of the positioning rod 2.

[0033] The moving part 5 also includes: a drive rod 504, which is disposed at the bottom of the rotating plate 503. The drive rod 504 can be fixedly connected to the output end of the drive motor to drive the rotating plate 503 to rotate; and an expansion member 505, which is disposed inside the fixed sleeve 502. One end is connected to the lower surface of the mounting ring 501, and the other end is connected to the upper surface of the rotating plate 503. When the clamping plate 402 rubs against the inner wall of the mounting ring 501, the expansion member 505 expands and deforms due to heat and drives the mounting ring 501 to move upward.

[0034] Multiple sets of insertion holes 506 are evenly distributed inside the mounting ring 501. The insertion holes 506 have an L-shaped structure, and the width of the insertion hole 506 on the side closer to the fixed sleeve 502 is smaller than that on the other side. A friction element 602 is slidably connected inside the insertion hole 506. A baffle 605 is provided at the end of the friction element 602. A limit groove 603 is provided inside the fixed sleeve 502, and the baffle 605 corresponds to the insertion hole 506. During normal use, the insertion hole 506 and the limit groove 603 are misaligned. When the contactor tilts, the mounting ring 501 rotates, causing the insertion hole 506 to coincide with the limit groove 603. The friction element 602 is inserted into the limit groove 603, and the baffle 605 is engaged with the insertion hole 506, supporting and limiting the side wall of the clamping plate 402.

[0035] Multiple sets of circumferential arrays of limiting blocks 601 are arranged on the inner surface of the mounting ring 501. The lower surface of the limiting block 601 is a wedge-shaped surface and the height of the wedge-shaped surface gradually increases from one end of the friction member 602 to the other end. The limiting block 601 rotates synchronously with the mounting ring 501 to limit the vertical vibration distance of the card plate 402.

[0036] Multiple sets of movable parts 604 are evenly arranged on the inner wall of the mounting ring 501. The other end of the movable part 604 is fixedly connected to the side wall of the baffle 605. When the internal temperature of the mounting ring 501 rises, the movable part 604 expands due to heat and drives the friction part 602 to move away from the mounting ring 501 through the baffle 605. The frictional pressure between the end of the friction part 602 and the inner wall of the fixed sleeve 502 is reduced.

[0037] The outer surface of the mounting ring 501 is in a sealed sliding connection with the inner wall of the fixing sleeve 502. The height of the fixing sleeve 502 is greater than the height of the mounting ring 501. The mounting ring 501 is a heat dissipation material and has a heat dissipation function. When the internal temperature of the mounting ring 501 rises, the expansion member 505 expands due to heat, causing the mounting ring 501 to move upward.

[0038] In summary, during use, when installing the contactor, the operator first aligns the mounting ring 501 with the multiple sets of positioning rods 2 on the lower surface of the contactor housing 1. The lower end of the positioning rod 2 is placed into the cavity of the mounting ring 501. At this time, the multiple sets of clamping plates 402 fixed on the outer surface of the positioning rod 2 and the limiting blocks 601 arranged in a circumferential array on the inner surface of the mounting ring 501 are circumferentially offset, with no contact or interference between them, ensuring that the positioning rod 2 can enter the mounting ring 501 without obstruction. The limiting groove 603 and the friction element 602 are offset to ensure the normal rotation of the mounting ring 501 and avoid structural damage caused by component collisions during installation. At the same time, under the action of the elastic force of the elastic element inside the moving part 604, the friction element 602 elastically squeezes and rubs the inner wall of the fixed sleeve 502 through the baffle 605, preventing the mounting ring 501 from sliding too much with the fixed sleeve 502 during normal use.

[0039] Subsequently, the staff pressed the contactor housing 1 vertically downwards smoothly. The movement of housing 1 caused multiple positioning rods 2 to move downwards synchronously. The positioning rods 2 caused the buffer block 401 below to move downwards and elastically contact the top of the rotating plate 503. Simultaneously, the positioning rods 2 moved multiple clamping plates 402 synchronously until the overall vertical height of the clamping plates 402 was completely lower than the horizontal height of the limit block 601. At this point, the drive rod 504 started, causing the rotating plate 503, which was fixedly connected to its output end, to rotate clockwise to a preset value (within a certain range). Figure 4Taking the center direction as an example, the rotation of the rotating plate 503 drives the expansion component 505 to rotate, thereby causing the mounting ring 501 and the limiting block 601 to rotate synchronously. All the limiting blocks 601 rotate to the position directly above the corresponding card plate 402. The wedge-shaped surface on the lower side of the limiting block 601 and the upper surface of the card plate 402 will maintain a preset safety gap. The two are in a non-contact state, which reserves a reasonable space for the normal vibration of the card plate 402 when the contactor works, avoids the limiting block 601 from causing hard interference to the vibration of the card plate 402, and ensures the smooth progress of the subsequent vibration buffering action. At the same time, the limiting block 601 limits the card plate 402 in the vertical direction to prevent the card plate 402 from detaching from the inside of the mounting ring 501 due to slight shaking of the contactor.

[0040] When the contactor is officially energized and working, if the contactor vibrates, the vertical vibration force will be directly transmitted to the multiple sets of positioning rods 2 that are fixedly connected to the contactor housing 1. At this time, the buffer block 401, which is in a natural compression state, will elastically buffer the vertical vibration of the positioning rods 2. With its own elastic deformation characteristics, it will quickly absorb the vertical vibration force, effectively weaken the transmission intensity of the vibration force, and prevent the vibration force from being directly and rigidly transmitted to the distribution box 3 through the positioning rods 2, thereby reducing the vibration impact on the distribution box 3.

[0041] Meanwhile, the multiple sets of clamping plates 402 arrayed on the outer surface of the positioning rod 2 always maintain a tight fit with the inner wall of the mounting ring 501. This fit structure can effectively buffer and disperse the horizontal vibration force generated by the positioning rod 2, and evenly distribute the concentrated horizontal vibration force to multiple contact points of the mounting ring 501, blocking the transmission path of the horizontal vibration force to the distribution box 3. It effectively isolates the contactor's working vibration force from both vertical and horizontal directions, ensuring that the distribution box 3 and its internal surrounding supporting structures are not affected by the contactor's working vibration.

[0042] During continuous operation of the contactor, the retaining plate 402 on the outer surface of the positioning rod 2 experiences frequent relative friction with the inner wall of the mounting ring 501 due to continuous vibration. The heat generated during this friction gradually accumulates in the internal cavity of the mounting ring 501. If the heat cannot be dissipated in time, it will cause continuous thermal damage to the core electrical components inside the contactor, reducing the contactor's operating accuracy and shortening its service life. At this time, the expansion member 505 installed inside the mounting ring 501 quickly absorbs the heat accumulated inside the mounting ring 501, causing the expansion member 505 to expand due to heat. One end of the expansion member 505 is connected to the lower surface of the mounting ring 501, and the other end is fixed to the upper surface of the rotating plate 503. The vertical thrust generated by its expansion will directly act on the mounting ring 501 and drive the entire mounting ring 501 to move smoothly upward along the inner wall of the fixed sleeve 502. The mounting ring 501 moves upwards until it passes over the fixed housing 502 and the slot, reaching the support frame inside the distribution box 3. This increases the contact area between the mounting ring 501 and the outside air, allowing the heat accumulated inside the mounting ring 501 to quickly exchange heat with the outside air through the increased contact area. At the same time, the moving part 604 absorbs heat and expands. The thrust generated by its expansion directly acts on the baffle 605, moving it away from the fixed housing 502. The movement of the baffle 605 drives the friction part 602 to move away from the fixed housing 502, reducing the friction between the friction part 602 and the inner wall of the fixed housing 502. This ensures that the mounting ring 501 moves upwards normally, preventing heat from being conducted to the inside of the contactor through the positioning rod 2, thus avoiding thermal damage to the electrical components. This ensures the operating accuracy of the contactor and significantly extends its overall service life.

[0043] Example 2 Based on the above embodiments, the vibration-damping contactor still reveals several prominent technical defects during actual long-term operation: First, the friction between the clamping plate 402 and the inner wall of the mounting ring 501 tends to concentrate in the same contact area. Long-term localized continuous friction will cause excessive wear and plastic deformation in this area, resulting in a larger localized fit gap between the inner wall of the mounting ring 501 and the clamping plate 402, weakening the limiting and locking effect of the moving part 5 on the support part 4; and the large-scale vibration of the clamping plate 402 will further aggravate the vibration impact of the contactor body, causing secondary mechanical damage to its internal structure and the connection parts of various components, easily leading to chain problems such as component loosening and structural deformation; Second, during the process of the clamping plate 402 being thermally expanded and causing the mounting ring 501 to move upward, the limiting block 6 on the inner wall of the mounting ring 501... 01 will move upwards synchronously. Although this action improves heat dissipation efficiency, it also directly expands the effective vibration range of the card plate 402 within the mounting ring 501, resulting in a significant increase in the vibration amplitude of the card plate 402. Thirdly, if there is a slight off-center load during contactor installation, or if long-term vibration causes radial displacement of the positioning rod 2, it will lead to uneven force, increased local wear, cracking of the mounting position caused by off-center load, and component jamming. Fourthly, when the distribution box 3 encounters a major accident such as tipping over, the card plate 402 will move upwards instantaneously under the action of inertia, thereby causing the contactor body to move synchronously and significantly, causing it to collide with other supporting structures inside the distribution box 3. This will not only directly cause irreversible damage to the core components of the contactor, but may also lead to failure of surrounding components, ultimately causing the entire equipment to stop and be unable to operate normally.

[0044] Therefore, in actual use, the movable part 604 can be set as an elastic body structure containing an expanding gas inside, and the inside of the elastic body is provided with a spring force member that makes the baffle 605 elastically reset. Under normal working conditions, the spring force member applies a tensile force to the baffle 605, causing it to move closer to the fixed sleeve 502 end. The baffle 605 simultaneously drives the friction member 602 to move closer to the fixed sleeve 502 end and elastically compresses and contacts the inner wall of the fixed sleeve 502 for frictional limiting. When the internal temperature of the mounting ring 501 rises, the expanding gas inside the elastic body expands due to heat, increasing its volume and causing the baffle 605 to stretch the spring force member to move away from the fixed sleeve 502 end. The baffle 605 simultaneously drives the friction member 602 to move and reduces the elastic frictional compressive force with the inner wall of the fixed sleeve 502.

[0045] In summary, during actual operation of the vibration-damping contactor, when the contactor is energized and generates continuous vibration, the locking plate 402 on the outer side of the positioning rod 2 will experience high-frequency continuous friction with the inner wall of the mounting ring 501. This friction process will continuously generate heat, which will gradually accumulate in the internal cavity of the mounting ring 501. The expansion member 505 inside the mounting ring 501, due to its high sensitivity to temperature changes, will quickly absorb the heat inside the cavity and expand in volume. Since one end of the expansion member 505 is connected to the lower surface of the mounting ring 501 and the other end is fixed to the upper surface of the rotating plate 503, the height of the rotating plate 503 remains constant. Therefore, the vertical thrust generated by the expansion of the expansion component 505 will directly act on the mounting ring 501, thereby causing the entire mounting ring 501 to move smoothly upward vertically along the inner wall of the fixed sleeve 502. This increases the heat exchange area between the mounting ring 501 and the external gas, improving the efficient heat dissipation effect of the heat generated by internal friction. During this vertical movement, the height of the clamping plate 402 is relatively stationary, while the mounting ring 501 shifts upward. The vertical relative position of the two changes, causing the vertical contact area between the clamping plate 402 and the inner wall of the mounting ring 501, which originally continuously generates friction, to shift naturally.

[0046] Simultaneously, the movable part 604 absorbs heat and expands. The thrust generated by its expansion will drive the baffle 605 to move away from the fixed sleeve 502. The movement of the baffle 605 will drive the friction part 602 to move, thereby reducing the elastic extrusion friction between the friction part 602 and the inner wall of the fixed sleeve 502. This allows the mounting ring 501 to move vertically and rotate inside the fixed sleeve 502 and adjust the friction position between the end of the clamping plate 402 and the inner wall of the mounting ring 501. This effectively avoids problems such as the elastic extrusion friction between the end of the friction part 602 and the inner wall of the fixed sleeve 502, which prevents it from moving.

[0047] The drive rod 504 synchronously starts and drives the rotating plate 503, which is fixedly connected to its output end, to rotate counterclockwise. The rotation of the rotating plate 503 drives the expansion component 505 to rotate, thereby driving the mounting ring 501 to rotate synchronously. The rotation of the mounting ring 501 causes its inner wall to undergo relative displacement with the clamping plate 402 in the horizontal direction, which further changes the friction contact point between the clamping plate 402 and the inner wall of the mounting ring 501 in the horizontal direction. Through the vertical displacement driven by the expansion component 505 and the circumferential rotation driven by the drive rod 504 and the rotating plate 503, the friction position between the clamping plate 402 and the inner wall of the mounting ring 501 is dynamically adjusted in both the vertical and horizontal directions. This ensures that the friction contact between the two is no longer concentrated in a single fixed area of ​​the inner wall of the mounting ring 501, but is evenly distributed in multiple different contact areas of the inner wall of the mounting ring 501. This avoids structural damage problems such as excessive wear and plastic deformation caused by long-term continuous friction impact on a single area of ​​the inner wall of the mounting ring 501, and maintains the fitting accuracy between the clamping plate 402 and the inner wall of the mounting ring 501.

[0048] The rotating plate 503 drives the mounting ring 501 to rotate synchronously in the circumferential direction. This not only achieves dual dynamic adjustment of the vertical and horizontal friction positions of the clamping plate 402 and the inner wall of the mounting ring 501, but also triggers the synchronous linkage limiting action of the limiting block 601. The counterclockwise rotation of the mounting ring 501 directly drives all the limiting blocks 601 to rotate synchronously. During the rotation, the wedge-shaped surface of the limiting block 601 always remains in contact with the surface of the clamping plate 402. This contact action limits the vertical vibration of the clamping plate 402, strictly constraining the vibration amplitude of the clamping plate 402 within a preset reasonable range. This prevents the mounting ring 501 and the limiting block 601 from moving upward and increasing the vibration range of the clamping plate 402 within the mounting ring 501, ensuring that the vibration amplitude of the clamping plate 402 is always within the preset range. This effectively avoids the problem of excessive vibration amplitude of the clamping plate 402 causing synchronous large-scale vibration of the positioning rod 2 and the contactor housing 1, and prevents the large-scale vibration of the contactor body from causing secondary mechanical damage to its internal core electrical components and the connection parts of various components.

[0049] When the contactor tilts due to slight off-center load during installation or long-term vibration and operating conditions, the drive rod 504 starts and rotates counterclockwise. This rotation causes the rotating plate 503, which is fixedly connected to it, to rotate synchronously. The rotating plate 503 further drives the fixed sleeve 502 to rotate in conjunction, thereby pulling the mounting ring 501 to rotate circumferentially. As the mounting ring 501 rotates, it also drives the limiting blocks 601 in its inner circumferential array to rotate synchronously. The contact position between the wedge-shaped surface below the limiting block 601 and the locking plate 402 on the outside of the positioning rod 2 gradually moves downward with the rotation. Utilizing the inclined surface force characteristics of the wedge-shaped surface, a targeted downward squeezing force is formed on the locking plates 402 of different heights. The locking plate 402 on the tilted side that is higher will be subjected to greater squeezing force and will be gradually pressed to the preset height. Finally, the locking plates 402 on all sides of the positioning rod 2 are kept at the same horizontal height, realizing the horizontal correction and off-center load correction of the contactor.

[0050] Furthermore, during this process, the movable part 604 does not expand due to heat. At this time, under the elastic force of the elastic component inside the movable part 604, the baffle 605 moves closer to the inner wall of the fixed sleeve 502. Simultaneously, the baffle 605 moves the friction component 602 and achieves elastic compression friction limit with the inner wall of the fixed sleeve 502. Thus, the mounting ring 501 and the fixed sleeve 502 remain relatively stable under the friction limit of the friction component 602, further improving the equal height of the multiple positioning rods 2, and correspondingly ensuring the stable support effect of the positioning rods 2 on the upper outer shell 1.

[0051] When the distribution box 3 encounters an unpredictable extreme emergency such as tipping over, the contactor body will tilt relative to the support frame inside the distribution box 3 due to its own inertia. The positioning rod 2 will move upward synchronously with the contactor body, and the locking plate 402 on its outer surface will also move upward and attempt to break free from the structural constraint of the mounting ring 501 on the support frame, resulting in violent vibration. At this time, the drive rod 504 drives the rotating plate 503 fixedly connected to its output end to rotate clockwise to the preset maximum angle. The rotation of the rotating plate 503 drives the mounting ring 501 to rotate synchronously, and the rotation of the mounting ring 501 drives multiple sets of The limiting block 601 rotates synchronously to its maximum angle. At this time, the insertion hole 506 coincides with the limiting groove 603, and the inner wall of the fixed sleeve 502 loses its limiting effect on the friction element 602. Under the elastic force of the internal elastic element, the movable element 604 drives the baffle 605 to move closer to the fixed sleeve 502. The baffle 605 drives the friction element 602 to be inserted into the limiting groove 603. At the same time, the baffle 605 enters the insertion hole 506. The baffle 605 and the friction element 602 simultaneously prevent the mounting ring 501 from moving upward, thereby limiting the continued upward movement of the clamping plate 402 and the positioning rod 2.

[0052] Meanwhile, as the limiting block 601 rotates synchronously, the contact position between its lower wedge-shaped surface and the clamping plate 402 gradually moves upward. As the limiting block 601 rotates to its maximum angle, the clamping plate 402 will abut against the highest point of the wedge-shaped surface of the limiting block 601, and work with the buffer block 401 at the bottom of the positioning rod 2 to gradually buffer the impact force of the positioning rod 2 and the clamping plate 402 moving upward, preventing the positioning rod 2 from being directly jammed and causing rigid damage to the positioning rod 2.

[0053] When the limiting block 601 rotates to its maximum angle, the outer surface of the baffle 605 is inserted and fixed with the insertion hole 506, and in conjunction with the insertion and fixation of the friction component 602 with the limiting groove 603, the position of the baffle 605 no longer shifts, and the side wall of the baffle 605 is pressed and adhered to the side wall of the clamping plate 402. The baffle 605 applies lateral pressure to the side of the clamping plate 402, further buffering the upward movement tendency of the clamping plate 402, and achieving an all-round limiting effect on the clamping plate 402. The wedge-shaped surfaces on the baffle 605 and the limiting block 601 work together to form a three-sided locking limiting effect on the clamping plate 402. The clamping plate 402 is firmly fixed between the limiting block 601 and the baffle 605, preventing the upward movement of the clamping plate 402 from causing the positioning rod 2 and the contactor housing 1 to shift synchronously. This effectively prevents hard collisions between the contactor body and other supporting components inside the distribution box 3, reducing the risk of equipment failure and downtime caused by extreme working conditions.

[0054] When the contactor needs to be disassembled and replaced, the drive rod 504 rotates, causing the rotating plate 503 to rotate counterclockwise. The rotation of the rotating plate 503 causes the mounting ring 501 to rotate, which in turn causes multiple sets of limit blocks 601 to rotate synchronously until the clamping plate 402 and the wedge-shaped surface on the lower side of the limit block 601 are completely separated. The two return to the circumferential separation and misalignment state before installation. At this time, the clamping plate 402 loses the vertical limit constraint of the limit block 601, and the locking state of the entire support part 4 is released synchronously. At this time, the operator does not need to disassemble other supporting structures. The contactor to be replaced can be pulled out vertically upwards to complete the disassembly operation. The whole operation is convenient and efficient, without any unnecessary and cumbersome steps. After the old contactor is disassembled, when installing the new contactor, it is only necessary to repeat the aforementioned standardized contactor installation and positioning steps, which greatly improves the efficiency of contactor disassembly and replacement and effectively reduces the operational difficulty and time cost of daily equipment maintenance.

[0055] Example 3 A method of using a vibration-damping contactor, the method comprising the following steps: S1. Pressing the outer shell 1 causes the positioning rod 2 and the clamping plate 402 to move down and insert into the mounting ring 501. The mounting ring 501 causes the limiting block 601 to rotate and reach directly above the clamping plate 402.

[0056] S2. When the contactor operates and generates vertical vibration force, the clamping plate 402 and the inner wall of the mounting ring 501 rub against each other and generate heat. The moving part 604 expands due to heat and drives the friction part 602 to move away from the mounting ring 501 through the baffle 605. The elastic compressive force between the friction part 602 and the mounting ring 501 decreases. The expansion part 505 expands due to heat and drives the mounting ring 501 to move upward and change the friction position between the clamping plate 402 and the inner wall of the mounting ring 501.

[0057] S3. When the contactor is installed off-center or tilted, the limit block 601 rotates clockwise to press the clamping plate 402 downward, and the friction element 602 and the mounting ring 501 are elastically pressed and limited.

[0058] S4. When the contactor tilts, the limit block 601 rotates counterclockwise to the maximum angle, the friction element 602 is inserted and fixed with the limit groove 603, and the baffle 605 supports and limits the side wall of the mounting ring 501.

[0059] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A vibration-proof contactor comprising a housing (1), characterized in that, Also includes: Positioning rod (2), which is located on the lower side of the outer casing (1); The support part (4) is provided on the outer surface of the positioning rod (2), including a buffer block (401) and multiple sets of clamping plates (402). When the contactor vibrates, the positions of the buffer block (401) and multiple sets of clamping plates (402) change and support and limit the positioning rod (2). The moving part (5) is provided on the outer surface of the support part (4) and includes a mounting ring (501). When the contactor vibrates, the mounting ring (501) moves upward and rotates to change the friction position between the end of the card plate (402) and the inner wall of the mounting ring (501). The limiting part (6) is located inside the moving part (5) and includes a limiting block (601). The mounting ring (501) drives the limiting block (601) to rotate and change the contact position with the upper end of the card plate (402).

2. A vibration isolating contactor according to claim 1, wherein Multiple sets of positioning rods (2) are provided to support and limit the outer shell (1); multiple sets of clamping plates (402) are provided and fixedly connected to the outer surface of the positioning rods (2) to buffer the vibration of the positioning rods (2) in the horizontal direction; buffer blocks (401) are provided at the lower end of the positioning rods (2) to buffer the vibration of the positioning rods (2) in the vertical direction.

3. The vibration damping contactor according to claim 1, characterized in that, The moving part (5) further includes: A fixed sleeve (502) is provided on the outside of the mounting ring (501), and the fixed sleeve (502) is fixed in position. The rotating plate (503) is located inside the fixed sleeve (502) and is used to drive the mounting ring (501) to rotate. After the contactor is installed, the bottom of the buffer block (401) is in elastic compression contact with the upper end of the rotating plate (503) to buffer the vertical vibration of the positioning rod (2).

4. The vibration damping contactor according to claim 3, characterized in that, The moving part (5) further includes: A drive rod (504) is located at the bottom of the rotating plate (503) and is used to drive the rotating plate (503) to rotate; An expansion member (505) is located inside a fixed housing (502). One end is connected to the lower surface of a mounting ring (501), and the other end is connected to the upper surface of a rotating plate (503). When the clamping plate (402) rubs against the inner wall of the mounting ring (501), the expansion member (505) expands and deforms due to heat, causing the mounting ring (501) to move upward.

5. A vibration damping contactor according to claim 4, characterized in that, The mounting ring (501) has multiple sets of insertion holes (506) evenly distributed inside. The insertion holes (506) are L-shaped. Friction elements (602) are slidably connected inside the insertion holes (506). A baffle (605) is provided at the end of the friction element (602). A limiting groove (603) is provided inside the fixed sleeve (502). The baffle (605) corresponds to the insertion hole (506). When the contactor tilts, the mounting ring (501) rotates and drives the insertion hole (506) to coincide with the limiting groove (603). The friction element (602) is inserted into the limiting groove (603). The baffle (605) is engaged with the insertion hole (506) and supports and limits the side wall of the clamping plate (402).

6. The vibration damping contactor according to claim 1, characterized in that, The limiting block (601) is arranged in a circumferential array on the inner surface of the mounting ring (501). The lower surface of the limiting block (601) is a wedge-shaped surface and the height of the wedge-shaped surface gradually decreases from one end of the friction member (602) to the other end. The limiting block (601) rotates synchronously with the mounting ring (501) to limit the vertical vibration distance of the card plate (402).

7. A vibration damping contactor according to claim 5, characterized in that, The inner wall of the insertion hole (506) is uniformly provided with multiple sets of movable parts (604). The other end of the movable part (604) is fixedly connected to the side wall of the baffle (605). When the internal temperature of the mounting ring (501) rises, the movable part (604) expands due to heat and drives the friction part (602) to move away from the mounting ring (501) through the baffle (605). The frictional pressure between the end of the friction part (602) and the inner wall of the fixed sleeve (502) is reduced.

8. A vibration damping contactor according to claim 3, characterized in that, The outer surface of the mounting ring (501) is in a sealed sliding connection with the inner wall of the fixed sleeve (502). The height of the fixed sleeve (502) is greater than the height of the mounting ring (501). The mounting ring (501) is a heat dissipation material and has a heat dissipation function. When the internal temperature of the mounting ring (501) rises, the expansion member (505) expands due to heat, causing the mounting ring (501) to move upward.

9. A method of using a vibration damping contactor, the method utilizing a vibration damping contactor as described in claim 7, characterized in that, Includes the following steps: S1. Press the outer shell (1) to drive the positioning rod (2) and the card plate (402) to move down and insert into the mounting ring (501). The mounting ring (501) drives the limiting block (601) to rotate and reach the card plate (402) directly above it. S2. When the contactor operates and generates vertical vibration force, the clamping plate (402) and the inner wall of the mounting ring (501) rub against each other and generate heat. The moving part (604) expands due to heat and drives the friction part (602) to move away from the mounting ring (501) through the baffle (605). The elastic compressive force between the friction part (602) and the mounting ring (501) decreases. The expansion part (505) expands due to heat and drives the mounting ring (501) to move upward and change the friction position between the clamping plate (402) and the inner wall of the mounting ring (501). S3. When the contactor is installed off-center or tilted, the limit block (601) rotates clockwise to press the clamping plate (402) downward, and the friction element (602) and the mounting ring (501) are elastically pressed and limited. S4. When the contactor tilts, the limit block (601) rotates counterclockwise to the maximum angle, the friction element (602) is inserted and fixed with the limit groove (603) and cooperates with the baffle (605) to support and limit the side wall of the mounting ring (501).

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