Contactor ceramic grating arc extinguishing chamber structure

Abstract

The utility model relates to a contactor ceramic grating arc extinguishing cavity structure, which belongs to the technical field of arc extinguishing and comprises a cavity, magnets are fixed on the left side and the right side of the cavity, a contact extending to the inner side of the cavity is fixed on the back of the cavity, and a main body structure is arranged on the inner side of the cavity. According to the ceramic grating arc extinguishing cavity structure of the contactor, current flows from left to right, the left magnet and the right magnet are arranged, a magnetic field with the negative left side and the positive right side in the arc extinguishing cavity is achieved, vertical deflection of an electric arc is influenced through Lorentz force, the electric arc is separated in cooperation with the arrangement of the independent grating blocks, and therefore the arc extinguishing efficiency is improved; through the arrangement of the dismounting assembly, the locking of the connection plate and the cavity is realized through the limiting of the limiting disc and the acting block, the installation and maintenance are facilitated, the overall structure is simple, the arc extinguishing efficiency is high, the reduction of the damage to the arc extinguishing cavity is facilitated, and the prolonging of the service life is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to arc extinguishing technology field, concretely is a contactor ceramic grid arc extinguishing chamber structure. BACKGROUND

[0002] With the continuous improvement of the degree of automation of power system, the application of alternating current contactor, as one of the most commonly used devices in electrical control system, is increasingly widespread, in order to ensure that the contactor can maintain stable performance under frequent operation, arc extinguishing technology becomes the key factor to improve the quality of contactor, the arc extinguishing device on the current market adopts metal arc separation plate or simple ceramic tube form, although it can realize the function of arc extinguishing to some extent, but there are slow arc extinguishing speed, poor high temperature resistance and other problems, especially under high voltage and large current conditions, the performance of these traditional arc extinguishing devices is more unsatisfactory.

[0003] For example, a kind of arc extinguishing device and contactor in Chinese patent (announcement number: CN218482130U) are related to low-voltage electrical apparatus technical field, the arc extinguishing device, including arc extinguishing cover and the arc extinguishing chamber being arranged in arc extinguishing cover, arc extinguishing cover is equipped with air inlet and air outlet, arc extinguishing chamber includes multiple overlapping and interval arrangement arc extinguishing grid, air inlet and air outlet are located at the both sides of arc extinguishing grid extension direction, the arc extinguishing device adopts arc extinguishing cover and is wrapped in arc extinguishing chamber, forms modular structure, is convenient for fixed, simultaneously, using arc extinguishing cover forms directional closed cavity, guides arc extinguishing gas movement, can reduce arc-over hazard, prevents arc extinguishing gas from entering electromagnetic system, causes electromagnetic system short circuit.

[0004] The patent is closed by arc extinguishing cover, and arc extinguishing is realized by arc extinguishing gas, but using gas for arc extinguishing, gas propagation speed is slow, which leads to low arc extinguishing efficiency, thereby easily causing arc extinguishing chamber to be damaged, so a kind of contactor ceramic grid arc extinguishing chamber structure is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies in the prior art, the utility model provides a contactor ceramic grid arc extinguishing chamber structure, which has the advantage of long service life and solves the problem of easy damage of the arc extinguishing chamber.

[0006] To achieve the above object, the utility model provides the following technical scheme: a contactor ceramic grid arc extinguishing chamber structure, comprising a cavity, the left and right sides of the cavity are fixed with magnets, the back of the cavity is fixed with a contact extending to the inside, and the inside of the cavity is provided with a main body structure;

[0007] The main body structure comprises a connecting plate, a grid block and a disassembly assembly, the connecting plate is movably connected with the inner cavity wall on the upper and lower sides of the cavity, the grid block is fixed on the side of the connecting plate away from the cavity, and the disassembly assembly is fixed with the connecting plate.

[0008] By adopting the technical scheme, the arc can be cut off through the arrangement of the main body structure, the arc can be quickly cooled, the arc extinguishing efficiency is improved, and the arc can stay in the cavity for a long time to damage the cavity, so that the stability of the arc extinguishing cavity is improved.

[0009] Further, the front surface of the cavity is provided with a mounting opening, and the main body structure is located inside the mounting opening.

[0010] By adopting the technical scheme, the main body structure can be installed and arranged, the arc extinguishing cavity can be quickly repaired, and the convenience is improved.

[0011] Further, the back surface of the contact is provided with a plug-in opening, and the two sides of the grid block are evenly distributed.

[0012] By adopting the technical scheme, the contact can be connected with the external circuit, and the arc can be quickly processed through the uniform distribution, so that the use effect is improved.

[0013] Further, the inner cavity wall on the upper and lower sides of the cavity is provided with a sliding channel, and the connecting plate is slidably connected with the cavity through the sliding channel.

[0014] By adopting the technical scheme, the displacement of the connecting plate can be realized, so that the displacement of the grid block can be driven, the grid block can be replaced and repaired, and the use stability is improved.

[0015] Further, the dismounting assembly comprises a fitting block, a connecting block, a limiting assembly, a movable block, an acting block and a return spring, the front surface of the fitting block is fixed with the connecting plate, the front surface of the connecting block is fixed with the cavity, the back surface of the fitting block is fixed with the limiting assembly, the bottom of the connecting block is movably connected with the movable block, the bottom of the movable block is fixed with the acting block, and the upper and lower sides of the return spring are respectively fixed with the connecting block and the acting block.

[0016] By adopting the technical scheme, the fitting block and the grid block can be quickly disassembled, so that the use convenience of the overall structure is improved.

[0017] Further, the limiting assembly comprises a fixed column, a connecting column and a limiting disc, the back surface of the fitting block is fixed with the fixed column, the back surface of the fixed column is fixed with the connecting column, and the back surface of the connecting column is fixed with the limiting disc.

[0018] By adopting the technical scheme, the acting block can be limited, so that the clamping effect can be realized, and the connecting plate can be quickly installed and disassembled.

[0019] Further, the bottom of the connecting block is provided with a movable opening, and the movable block is slidably connected with the connecting block through the movable opening.

[0020] By adopting the technical scheme, the stability of the movable block is improved, thereby improving the stable use of the whole assembly.

[0021] Further, the diameter of the connecting column is smaller than that of the fixing column and the limiting disc, the acting block is a prism structure, and the limiting disc is a circular truncated cone structure.

[0022] By adopting the technical scheme, the elastic movement of the acting block is realized, thereby realizing the clamping of the limiting disc on the acting block, the quick locking of the connecting plate and the cavity, and the improvement of the use convenience.

[0023] Compared with the prior art, the technical scheme of the application has the following beneficial effects:

[0024] The contactor ceramic grid arc-extinguishing chamber structure is used for flowing current from left to right, realizing the left negative and right positive magnetic field in the arc-extinguishing chamber through the setting of left and right magnets, deflecting the arc up and down through the Lorentz force, realizing the separation of the arc through the setting of multiple independent grid blocks, thereby improving the arc-extinguishing efficiency, being beneficial to the stability of the arc-extinguishing chamber, being beneficial to the locking of the connecting plate and the cavity through the limiting of the limiting disc and the acting block through the setting of the dismounting assembly, being beneficial to the installation and maintenance, and being simple in overall structure, high in arc-extinguishing efficiency, beneficial to the reduction of the damage of the arc-extinguishing chamber, and beneficial to the prolongation of the service life. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a three-dimensional schematic view of the utility model structure;

[0026] Figure 2 It is a front view schematic view of the utility model;

[0027] Figure 3 It is a sectional structure schematic view of the utility model;

[0028] Figure 4 It is a three-dimensional view of the dismounting assembly of the utility model.

[0029] In the figure: 1, cavity; 2, magnet; 3, contact; 4, connecting plate; 5, grid block; 6, dismounting assembly; 601, fitting block; 602, connecting block; 603, fixing column; 604, connecting column; 605, limiting disc; 606, movable block; 607, acting block; 608, return spring. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0031] Please refer to Figures 1 to 3 The contactor ceramic grid arc-extinguishing chamber structure in the embodiment comprises a cavity 1, and the left and right sides of the cavity 1 are both fixed with magnets 2.

[0032] It can be understood that the setting of the magnets 2 is conducive to controlling the magnetic field in the cavity 1, realizing the left negative and right positive magnetic field structure in the arc-extinguishing chamber, thereby realizing the up-down deflection of the magnetic field, and thus being conducive to guiding the arc to the upper and lower grid blocks 5, thereby realizing the improvement of the arc-extinguishing efficiency.

[0033] It can also be understood that the back of the cavity 1 is fixed with a contact 3 extending to the inner side thereof, the inner side of the cavity 1 is provided with a main body structure, the front of the cavity 1 is provided with a mounting port, and the main body structure is located inside the mounting port.

[0034] It should be noted that the setting of the contact 3 is conducive to connecting the external circuit, is conducive to stably connecting the structure, thereby being conducive to improving the overall use stability, is conducive to the stable use of the overall structure, the setting of the mounting port is conducive to reserving the mounting space in the cavity 1, is conducive to the arrangement of the structure, is conducive to the mounting and setting of the overall structure, thereby being conducive to the stable use of the overall structure, and improves the stability of the structure use.

[0035] It should also be noted that the main body structure comprises a connecting plate 4, a grid block 5 and a dismounting assembly 6, and the back of the contact 3 is provided with a plug-in port.

[0036] It can be seen that the setting of the plug-in port, in cooperation with the setting of the contact 3, is conducive to improving the stability with the external circuit, thereby being conducive to connecting the external circuit, and is conducive to the stability of the connection between the external circuit and the structure, thereby being conducive to improving the overall structure use stability.

[0037] It can also be seen that the upper and lower grid blocks 5 are both two groups, and each group of grid blocks 5 is uniformly distributed at equal intervals, and the uniform and equidistant distribution setting is conducive to quickly separating and processing the arc, thereby being conducive to accelerating the arc cooling speed, thereby realizing the arc extinguishing speed, and thus being conducive to the realization of the fire extinguishing, and helping to improve the arc-extinguishing efficiency.

[0038] It needs to be explained that the adapter plate 4 is movably connected with the inner cavity wall on the upper and lower sides of the cavity 1, sliding channels are formed on the inner cavity wall on the upper and lower sides of the cavity 1, the adapter plate 4 is slidably connected with the cavity 1 through the sliding channels, the grid block 5 is fixed on the side of the adapter plate 4 away from the cavity 1, and the dismounting assembly 6 is fixed with the adapter plate 4.

[0039] It needs to be explained that the sliding channels are beneficial to the sliding connection between the adapter plate 4 and the cavity 1, thereby being beneficial to the movable displacement of the grid block 5, thereby being beneficial to the inspection and maintenance of the structure in the arc extinguishing chamber, thereby being beneficial to the improvement of the overall use stability, and the dismounting assembly 6 is beneficial to the limitation of the displacement of the adapter plate 4, thereby being beneficial to the stability of the overall structure and being beneficial to the quick insertion and installation of the adapter plate 4 through the clamping position, and being beneficial to the improvement of the use convenience of the overall structure.

[0040] Please refer to Figure 4 In order to improve the convenience of the structure, the dismounting assembly 6 in the embodiment comprises a fitting block 601, a connecting block 602, a limiting assembly, a movable block 606, an acting block 607 and a reset spring 608, the fitting block 601 is fixed on the front surface of the adapter plate 4, the connecting block 602 is fixed on the front surface of the cavity 1, the limiting assembly is fixed on the back surface of the fitting block 601, the movable block 606 is movably connected with the bottom of the connecting block 602, and the bottom of the connecting block 602 is provided with a movable opening.

[0041] It also needs to be explained that the movable opening is beneficial to the sliding connection between the connecting block 602 and the movable block 606, is beneficial to the stability of the upward and downward movement of the movable block 606, is beneficial to the displacement and locking of the limiting disc 605 through the displacement of the movable block 606, is beneficial to the improvement of the use stability of the structure, thereby being beneficial to the stable use of the overall structure, is beneficial to the quick dismounting effect of the dismounting assembly 6, and is beneficial to the improvement of the use convenience.

[0042] It is not difficult to find that the movable block 606 is slidably connected with the connecting block 602 through the movable opening, the acting block 607 is fixed on the bottom of the movable block 606, and the upper and lower sides of the reset spring 608 are respectively fixed with the connecting block 602 and the acting block 607.

[0043] It is also not difficult to find that the reset spring 608 is beneficial to the jacking of the top of the acting block 607, thereby being beneficial to the downward displacement of the acting block 607 and the movable block 606, thereby being beneficial to the stable abutment of the acting block 607 and the back surface of the limiting disc 605, thereby being beneficial to the locking of the adapter plate 4 and the cavity 1, being beneficial to the stable use of the overall structure, thereby being beneficial to the improvement of the use stability of the structure.

[0044] It needs to be explained that the limiting assembly includes the fixed column 603, the connecting column 604 and the limiting disc 605, the action block 607 is a prism structure, and the limiting disc 605 is a circular table structure.

[0045] It also needs to be explained that through the structure of the action block 607 and the limiting disc 605, it is beneficial to the front surface of the action block 607 when the limiting disc 605 is displaced backward. The action block 607 is fitted, so as to provide an upward force for the action block 607 through the inclined surface, so as to realize the upward displacement of the action block 607 and the connecting block 602 through the sliding connection of the movable block 606 and the connecting block 602. It is beneficial to realize the displacement of the action block 607 to the left side of the limiting disc 605, and is beneficial to the stable operation of the overall assembly, so as to be beneficial to the stable realization of the clamping effect, and further to be beneficial to the improvement of the use stability of the overall structure.

[0046] It needs to be explained that the fixed column 603 is fixed with the back surface of the fitting block 601, the connecting column 604 is fixed with the back surface of the fixed column 603, the limiting disc 605 is fixed with the back surface of the connecting column 604, and the diameter of the connecting column 604 is smaller than the diameter of the fixed column 603 and the limiting disc 605.

[0047] In the embodiment, the diameter of the fixed column 603 and the limiting disc 605 is set, so as to realize that the diameter of the fixed column 603 and the limiting disc 605 is greater than the diameter of the connecting column 604, so as to leave a space between the fixed column 603 and the limiting disc 605, so as to be beneficial to limiting the action block 607 through the reserved space, preventing the action block 607 from running out through the structure of the action block 607, so as to be beneficial to the stability of the action block 607, so as to be beneficial to the stable connection of the connecting plate 4 and the cavity 1, so as to be beneficial to the stable use of the overall structure. Through the quick clamping of the limiting disc 605 and the action block 607, the quick installation and fixation of the connecting plate 4 and the cavity 1 are realized, which is beneficial to the maintenance of the structure in the cavity 1, improves the convenience of use, and is beneficial to the convenient use of the overall structure.

[0048] The working principle of the above embodiment is:

[0049] The contact 3 is connected in series from left to right through the external circuit, so that the current flows from left to right, the arc is regarded as a conductor, through the setting of the magnet 2, the left side of the arc chamber is negative and the right side is positive, according to the left-hand rule, the arc is deflected in the up-down direction under the action of the magnetic field and the Lorentz force, the grid block 5 is arranged in the deflection direction, meanwhile, the arc is separated and accelerated to cool and extinguish through the non-communication setting between the grid blocks 5, so that the arc chamber is improved in arc extinguishing efficiency and reduced in damage to the cavity 1, thereby improving the service life and performance of the product and being beneficial to the improvement of the overall use effect, meanwhile, through the setting of the dismounting assembly 6, the arc chamber can be quickly mounted and dismounted, through the sliding action, the connecting plate 4 is slid to the cavity 1, so that the grid block 5 is sent into the cavity 1 and drives the limiting disc 605 to displace backward, through the structural setting of the limiting disc 605 and the acting block 607, the acting block 607 is abutted, through the sliding action and the elastic action of the reset spring 608, the movable block 606 is driven to slide upward, until the acting block 607 is displaced to the front of the limiting disc 605, the reset spring 608 is supported to reset the acting block 607, so that the acting block 607 is clamped by the fixing column 603 and the limiting disc 605, the quick mounting of the structure is realized, the overall structure is simple, through the dismounting structure setting, the use is convenient, the arc extinguishing efficiency is high, and the service life of the arc chamber is prolonged.

Claims

1. A contactor ceramic grid arc chute structure comprising a cavity (1), characterized in that: Magnet (2) is fixed on both sides of the cavity (1), the back of the cavity (1) is fixed with the contact (3) extending to the inside, the inside of the cavity (1) is provided with a main structure; The main structure includes the adapter plate (4), the grid block (5) and the disassembly assembly (6), the adapter plate (4) is movably connected with the inner cavity wall of the cavity (1) on both sides, the grid block (5) is fixed with the side of the adapter plate (4) away from the cavity (1), the disassembly assembly (6) is fixed with the adapter plate (4).

2. A contactor ceramic grid arc chute structure according to claim 1, characterized in that: The front of the cavity (1) is provided with a mounting port, and the main structure is located inside the mounting port.

3. The contactor ceramic grid arc chute structure of claim 1, wherein: The back of the contact (3) is provided with a plug interface, and the grid block (5) on both sides is evenly distributed in two groups.

4. The contactor ceramic grid arc chute structure of claim 1, wherein: The inner cavity wall on both sides of the cavity (1) is provided with a sliding channel, and the adapter plate (4) is slidably connected with the cavity (1) through the sliding channel.

5. The contactor ceramic grid arc chute structure of claim 1, wherein: The disassembly assembly (6) includes the fitting block (601), the connecting block (602), the limiting assembly, the movable block (606), the acting block (607) and the reset spring (608), the front of the fitting block (601) is fixed with the adapter plate (4), the front of the connecting block (602) is fixed with the cavity (1), the back of the fitting block (601) is fixed with the limiting assembly, the bottom of the connecting block (602) is movably connected with the movable block (606), the bottom of the movable block (606) is fixed with the acting block (607), and the upper and lower sides of the reset spring (608) are fixed with the connecting block (602) and the acting block (607) respectively.

6. A contactor ceramic grid arc chute structure according to claim 5, characterized in that: The limiting assembly includes the fixed column (603), the connecting column (604) and the limiting disc (605), the back of the fitting block (601) is fixed with the fixed column (603), the back of the fixed column (603) is fixed with the connecting column (604), and the back of the connecting column (604) is fixed with the limiting disc (605).

7. A contactor ceramic grid arc chute structure according to claim 5, wherein: The bottom of the connecting block (602) is provided with a movable port, and the movable block (606) is slidably connected with the connecting block (602) through the movable port.

8. A contactor ceramic grid arc chute structure according to claim 6, characterized in that: The diameter of the connecting column (604) is smaller than that of the fixed column (603) and the limiting disc (605), the acting block (607) is a prism structure, and the limiting disc (605) is a circular cone structure.

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