Mechanical holding device for a magnetically controlled mechanism and holding method thereof

Abstract

The application provides a mechanical holding device for a magnetic control mechanism, comprising an unlocking electromagnet, the unlocking electromagnet is connected with the lower end of a spring pull rod, the upper end of the spring pull rod is rotationally connected with one end of an elastic pull rod, the other end of the elastic pull rod is connected with one end of a holding wedge, the other end of the holding wedge is rotationally connected with the spring pull rod, and the spring pull rod and the elastic pull rod drive the holding wedge to rotate clockwise or counterclockwise; the application also provides a mechanical holding method for a magnetic control mechanism; if the small gap between the moving iron core and the static iron core of the magnetic control mechanism is separated due to non-trip operation, such as strong vibration and other factors, so that the suction force is reduced and the magnetic control mechanism cannot be operated, the holding wedge can keep the moving iron core at the closed position, and mis-trip operation is not caused; the application does not affect the normal electric operation of the magnetic control mechanism, is beneficial to improving the reliability of the magnetic control switch, and can be applied to special occasions, such as ships.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power systems, in particular to a mechanical holding device for a magnetic control mechanism and a holding method thereof. BACKGROUND

[0002] The circuit breaker is one of the important electrical components in the power system, which can realize the opening and conduction of the power system line. Among the components of the circuit breaker, the vacuum bubble and the magnetic control mechanism are commonly used. The vacuum bubble is an electrical component integrating the on-off circuit, arc extinguishing and insulation, which is connected with the permanent magnet mechanism through the electrode pull rod to drive the electrode pull rod to move up and down when the moving iron core of the permanent magnet mechanism moves up and down, thereby realizing the conduction and disconnection of the power system line. The magnetic control mechanism is a new type of switch taking semi-hard magnetic technology as the core. With the maturity of semi-hard magnetic materials, it has been applied in various fields. The closing process of the magnetic control mechanism is a process of exciting the iron core semi-hard magnetic material by the coil. After excitation, the magnetism of the moving and static iron cores is maintained, thereby maintaining the closing state. The opening process is a process of demagnetizing the iron core semi-hard magnetic material by the coil. After demagnetization, the magnetism is weakened, and the moving iron core is pushed away by the spring. At present, the static suction force of the same structure of the magnetic control mechanism is not much different from that of the neodymium iron boron magnet. However, in some specific occasions, such as ships and other vibrating applications, there are still some problems of poor reliability compared with the neodymium iron boron magnet. When there is strong vibration, the inherent characteristic magnetic suction force of the magnetic control mechanism will quickly decrease and cannot be restored after the moving and static magnets are separated, which will directly cause the misoperation of the magnetic control switch.

[0003] As the prior art application number 202122746889.6 based on the magnetic control mechanism of the deep fusion switch, a technical scheme is provided, which comprises a power taking unit 1, the power taking unit 1 is connected with a total power supply 2, the total power supply 2 is respectively connected with a magnetic control drive controller 3 and a terminal control unit 4, the magnetic control drive controller 3 is connected with a magnetic control switch 5, the magnetic control switch 5 comprises a static iron core 6, the lower part of the static iron core 6 is provided with a moving iron core 7 matched therewith, the middle parts of the static iron core 6 and the moving iron core 7 are provided with mounting holes 8, the mounting holes 8 are provided with connecting rods 9, the outer sides of the mounting holes 8 are provided with fixed grooves 10, the fixed grooves 10 are provided with elastic members 11, the elastic members 11 are sleeved on the outer sides of the connecting rods 9, the connecting rods 9 are connected with the moving iron core 7 through fixing devices, the inside of the static iron core 6 is fixedly provided with a coil 13, the inside of the moving iron core 7 is provided with an adsorption groove 14 matched with the static iron core 6, and the coil 13 is connected with the magnetic control drive controller 3; the static iron core 6 and the moving iron core 7 are both made of semi-hard magnetic material; in this application, when the switch is opened, the moving iron core 7 moves away from the static iron core 6 under the action of the demagnetizing current, the elastic force of the elastic member 11, the gravity of the moving iron core 7 and other reasons, so that the magnetic control switch is in an open state; that is, the attraction between the static iron core 6 and the moving iron core 7 disappears, the moving iron core 7 and the static iron core 6 are separated under the pushing of the elastic member 11, the gravity of the moving iron core 7 and other reasons, so as to realize the open state; in this application, the magnetic force between the static iron core 6 and the moving iron core 7 is relied on to realize the opening and closing of the switch, but in special occasions, the moving and static magnets will be separated under external force when strong vibration is encountered, and after the moving and static magnets are separated, the magnetic attraction will quickly decrease and cannot be restored due to the inherent characteristics of the magnetic control mechanism, which will directly cause the magnetic control switch to malfunction and open.

[0004] In summary, it is necessary to provide a new technical scheme to solve the above technical problems. SUMMARY

[0005] The application provides a mechanical retaining device for a magnetic control mechanism, which comprises an unlocking electromagnet connected with the lower end of a spring pull rod, the upper end of the spring pull rod is rotationally connected with one end of an elastic pull rod, the other end of the elastic pull rod is connected with one end of a retaining wedge, the other end of the retaining wedge is connected with the spring pull rod, and the spring pull rod and the elastic pull rod drive the retaining wedge to rotate clockwise or counterclockwise.

[0006] As a preferred scheme, the unlocking electromagnet comprises an unlocking static iron core, the upper part of the unlocking static iron core is provided with an unlocking moving iron core, and the unlocking moving iron core is connected with the lower end of the spring pull rod.

[0007] As a preferred scheme, the spring pull rod comprises a pull rod I connected with the unlocking electromagnet, the upper part of the pull rod I is connected with a moving block, the moving block is provided with a sliding groove, the upper part of the moving block is provided with a pull rod II, the pull rod II is provided with a spring, and the pull rod II is connected with the elastic pull rod.

[0008] As a preferred scheme, the sliding groove is provided with a fixed pin matched with the sliding groove, and the moving block moves up and down along the fixed pin through the sliding groove.

[0009] As a preferred scheme, the spring pull rod, the elastic pull rod and the retaining wedge are arranged in a static core retaining rod, the static core retaining rod is provided with a through groove near the side close to the moving core, and the retaining wedge moves along the through groove.

[0010] As a preferred scheme, the upper end of the static core retaining rod is connected with a mounting plate, the lower end of the static core retaining rod is provided with the unlocking electromagnet, and the spring pull rod extends to the unlocking electromagnet through the lower end of the static core retaining rod.

[0011] As a preferred scheme, when the magnetic control mechanism is in the closed state, the top of the retaining wedge and the moving core have a gap.

[0012] A mechanical retaining method for a magnetic control mechanism comprises the following processes.

[0013] When the magnetic control mechanism is in the closed state, the unlocking electromagnet is powered off, the spring pull rod and the elastic pull rod control the retaining wedge to be in the extended state, and the retaining wedge extends to the lower part of the moving core of the magnetic control mechanism.

[0014] As a preferred scheme, the top of the retaining wedge and the lower part of the moving core have a gap.

[0015] As a preferred scheme, when the magnetic control mechanism is in the open state, the method comprises steps one and two.

[0016] Step one: control the unlocking electromagnet to be powered on, and control the retaining wedge to rotate counterclockwise through the spring pull rod and the elastic pull rod, so that the retaining wedge is in the retracted state and does not affect the downward movement of the moving core.

[0017] Step two: control the magnetic control mechanism to be powered on, the moving core moves downward, the moving core is separated from the static core, and the opening of the magnetic control mechanism is realized.

[0018] The application is used when at least one set is installed around the magnetic control mechanism, after the moving iron core closing operation, the retaining wedge is reset to the extended state under the action of the elastic pull rod and the spring pull rod, and is extended to the lower part of the moving iron core, which can ensure that the moving iron core moves downward when strong vibration occurs, but remains in the closing position; during the opening operation, the driver first controls the unlocking electromagnet to act, the moving iron core drives the spring pull rod to move downward, the retaining wedge is rotated counterclockwise by the elastic pull rod, and is in the retracted state, which does not affect the action of the moving iron core, and the magnetic control mechanism receives the opening command and acts to open, and normal opening operation is performed.

[0019] In summary, if in the closed state, due to non-opening operation, such as strong vibration and other factors, the small gap between the moving iron core and the static iron core of the magnetic control mechanism is separated, so that the suction force is reduced and cannot be operated, the retaining wedge can keep the moving iron core in the closed position, and misoperation will not occur; the mechanical retaining device is a double insurance redundant design which will not cause misoperation, and will not affect the normal electric operation of the magnetic control mechanism, which is beneficial to improve the reliability of the magnetic control switch, and can be applied to special occasions such as ships. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structure schematic diagram of the closed retaining state of the application;

[0021] Figure 2 is a structure schematic diagram of the opening unlocking state of the application;

[0022] Figure 3 is a structure schematic diagram of the unlocking electromagnet closed of the application;

[0023] Figure 4 is a structure schematic diagram of the unlocking electromagnet disconnected of the application;

[0024] Reference signs:

[0025] 1, unlocking electromagnet; 2, spring pull rod; 3, elastic pull rod; 4, retaining wedge; 5, moving iron core; 6, static iron core; 7, spring sheet; 8, unlocking static iron core; 9, unlocking moving iron core; 10, mounting hole; 11, connecting rod; 12, fixed groove; 13, elastic member; 14, clasp; 15, coil; 16, adsorption groove; 17, mounting plate; 18, pull rod one; 19, moving block; 20, sliding groove; 21, pull rod two; 22, spring; 23, gap; 24, static iron core retaining rod; 25, through groove; 26, mounting plate; 27, fixed pin; 28, moving hole. DETAILED DESCRIPTION

[0026] The following will be described in detail with reference to the accompanying drawings Figure 1 to the accompanying drawings Figure 4The specific embodiments of the present application will be described in detail. It should be noted that the specific embodiments described herein are merely intended to illustrate and explain the present application, and are not intended to limit the present application.

[0027] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the indicated device or element to have a specific orientation, to be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "one", "two" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "providing" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements; for those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. Embodiment one

[0029] As shown in Figure 1 , Figure 2 , the present embodiment provides a mechanical holding device for a magnetic control mechanism, which comprises an unlocking electromagnet 1 connected with the lower end of a spring pull rod 2, the upper end of the spring pull rod 2 is rotationally connected with one end of an elastic pull rod 3, the other end of the elastic pull rod 3 is connected with one end of a holding wedge 4, preferably, the top of the holding wedge 4 is a plane, which always remains horizontal and does not change with the rotation of the holding wedge 4; when the holding wedge 4 is in the extended state, the top is used to support a moving iron core 5; the other end of the holding wedge 4 is rotationally connected with the spring pull rod 3, the spring pull rod 2 and the elastic pull rod 3 cooperate to control the counterclockwise or clockwise rotation of the holding wedge 4, that is, to control the holding wedge 4 to be in the extended or retracted state; when the electromagnetic mechanism is in the closed state, the moving iron core 5 and the static iron core 6 are in the closed state, the unlocking electromagnet 1 is powered off, the spring pull rod 2 is reset, and the elastic pull rod 3 is cooperated to make the holding wedge 4 in the extended state, which is extended at the lower part of the moving iron core 5; when strong vibration occurs, the moving iron core 5 will move downward, but due to the clamping of the holding wedge 4, the electromagnetic mechanism is still in the closed position and will not be opened.

[0030] During the opening operation, the driver first controls the unlocking electromagnet 1 to be energized, driving the spring pull rod 2 to move downward. Under the pull of the elastic pull rod 3, the holding wedge 4 rotates counterclockwise, causing the holding wedge 4 to retract without affecting the movement of the moving iron core 5. The magnetic control mechanism receives the opening command and opens the circuit breaker, performing normal opening operation.

[0031] During the above process, in the closed state, due to non-opening operations, such as strong vibrations and other factors, the moving iron core 5 and the static iron core 6 of the magnetic control mechanism are separated by a small gap, thereby reducing the suction force and being unable to operate. The holding wedge 4 can keep the moving iron core 5 in the closed position and will not cause an erroneous opening operation. In this state, if the opening operation is required, it can be done by electric opening or manual opening. The electric opening is as described above and will not be described here. When manually opening, pull the unlocking electromagnet 1 downward, and the holding wedge 4 is driven to rotate counterclockwise under the action of the spring pull rod 2 and the elastic pull rod 3, and the moving iron core 5 performs the opening operation under the action of the opening spring.

[0032] After the opening operation is completed, the moving iron core 5 is in the opening position, the keeping wedge 4 is compressed in the unlocking position, and the spring sheet 7 on the elastic pull rod 3 is in a compressed state; when the switch is closed again, the unlocking electromagnet 1 is powered off, the spring pull rod 2 moves upward, and the keeping wedge 4 rotates clockwise under the action of the spring sheet 7, that is, moves to the right, so that the keeping wedge 4 pops out, thereby maintaining the closed position.

[0033] The mechanical holding device added to this embodiment is a double-insurance redundant design that will not cause malfunction of the magnetic control mechanism. The mechanical holding device does not affect the normal electric operation of the magnetic control mechanism, and is beneficial to improving the reliability of the magnetic control mechanism. It can be used in special occasions, such as ships. Example 2

[0034] like Figure 3 、 Figure 4 As shown, this embodiment describes the unlocking electromagnet 1. Specifically, the unlocking electromagnet 1 includes an unlocking static iron core 8. The upper part of the unlocking static iron core 8 is provided with an unlocking moving iron core 9, and the unlocking moving iron core 9 is connected to the lower end of the spring pull rod 2; when power is on, the unlocking moving iron core 9 moves downward, pulling the spring pull rod 2 downward, and under the pull of the elastic pull rod 3, the wedge block 4 is kept moving counterclockwise and is in a retracted state, without supporting the moving iron core 5; when power is off, the spring pull rod 2 and the elastic pull rod 3 are reset, keeping the wedge block 4 rotating clockwise, keeping the wedge block 4 in an extended state, extending to the lower part of the moving iron core 5, supporting the moving iron core 5, ensuring that even when strong vibration is generated, the moving iron core 5 moves downward, but due to the clamping of the wedge block 4, the electromagnetic mechanism is in the closed position.

[0035] More specifically, the two contact surface cross-sectional areas of the unlocking moving iron core 9 and the unlocking static iron core 8 are equal, and the volume of the unlocking moving iron core 9 is equal to the volume of the unlocking static iron core 8; the middle part of the unlocking static iron core 8 and the unlocking moving iron core 9 is provided with a mounting hole 10, the mounting hole 10 is provided with a connecting rod 11, the connecting rod 11 moves along the mounting hole 10, more specifically, the connecting rod 11 drives the unlocking moving iron core 9 to move, and moves towards or away from the static iron core 8; the outer side of the mounting hole 10 is provided with a fixed groove 12, the fixed groove 12 is provided with an elastic element 13, the elastic element 13 is preferably a spring, the elastic element 13 is sleeved on the outer side of the connecting rod 11, and is preferably clamped on the outer side of the connecting rod 11, and is clamped through a clamping ring 14, the clamping ring 14 is fixedly connected with the connecting rod 11, and is fixed through a connection mode in the prior art such as welding, bonding and the like; the connecting rod 11 is connected with the unlocking moving iron core 9 through a fixing device, the unlocking moving iron core 9 is fixedly provided with a coil 15 in the inside, and the inside of the unlocking moving iron core 9 is provided with an adsorption groove 16 matched with the unlocking static iron core 8, the adsorption groove 16 is an annular groove; the coil 15 is connected with a magnetic control driving controller, which belongs to a conventional technical means, and no improvement is made in the present application, and thus no specific description is made herein; the unlocking static iron core 8 and the unlocking moving iron core 9 are made of semi-hard magnetic material.

[0036] Preferably, in order to facilitate installation with the installation plane, the bottom of the unlocking static iron core 8 is provided with a mounting plate 17, the middle part of the mounting plate is provided with a moving hole 28 for the movement of the connecting rod; the mounting plate 17 is fixed with the unlocking static iron core 8 through a connection mode commonly used in the prior art, such as bonding, screw connection and the like.

[0037] Specific working principle is: when closing, the unlocking moving iron core 9 moves towards the unlocking static iron core 8 under the action of the excitation current, overcomes the elastic force of the elastic element 13, and makes the unlocking electromagnet 1 be in the closing state; that is, the attraction between the unlocking moving iron core 9 and the unlocking static iron core 8 is achieved through the attraction, so as to realize the closing state.

[0038] When opening, the unlocking moving iron core 9 moves away from the unlocking static iron core 8 under the action of the demagnetizing current, is pushed by the elastic force of the elastic element 13, and a part of the gravity of the unlocking moving iron core 9, so that the magnetic control switch is in the opening state; that is, the attraction between the unlocking static iron core 8 and the unlocking moving iron core 9 disappears, and the unlocking moving iron core 9 is separated from the unlocking static iron core 8 based on the pushing of the elastic element 13 and a part of the gravity of the unlocking moving iron core 9, so as to realize the closing state; the above process is based on that the unlocking moving iron core 9 and the unlocking static iron core 8 are made of semi-hard magnetic controllable magnetic material, so that the generation and disappearance of magnetism are controlled based on the excitation current and the demagnetizing current provided by the coil 15. Embodiment three

[0039] The spring pull rod 2 is limited in the embodiment, and specifically:

[0040] The spring pull rod 2 comprises a pull rod I 18 connected with the unlocking electromagnet 1, more specifically, the pull rod I 18 is connected with the unlocking moving iron core 9 of the unlocking electromagnet 1, the upper part of the pull rod I 18 is connected with a moving block 19, the moving block 19 is provided with a sliding groove 20, the upper part of the moving block 19 is provided with a pull rod II 21, the pull rod II 21 is provided with a spring 22, and the pull rod II 21 is connected with the elastic pull rod 3; more specifically, the sliding groove 20 is provided with a fixed pin 27 matched therewith, the fixed pin 27 is rotationally connected with the retaining wedge block 4 through a rotating shaft, a rotating pin or the like, the retaining wedge block 4 rotates clockwise and counterclockwise along the fixed pin 27, the moving block 19 moves up and down along the fixed pin 27 through the sliding groove 20, thereby driving the retaining wedge block 4 to rotate clockwise or counterclockwise, so that the retaining wedge block 4 is in the extended or retracted state.

[0041] The unlocking electromagnet 1 is powered on, the unlocking moving iron core 9 moves downward, the pull rod I 18, the moving block 19 and the pull rod II 21 move downward, the retaining wedge block 4 rotates counterclockwise under the action of the elastic pull rod 3 and is in the retracted state, cannot be clamped with the moving iron core 5, and the process of opening the switch is realized.

[0042] The unlocking electromagnet 1 is powered off, the unlocking moving iron core 9 is separated from the unlocking static iron core 8, the spring pull rod 2 and the elastic pull rod 3 are reset, the retaining wedge block 4 rotates clockwise, and rotates to the lower part of the moving iron core 5, so that the moving iron core 5 can be clamped.

[0043] Preferably, the top of the retaining wedge block 4 and the moving iron core 5 have a gap 23 when the magnetic control mechanism is in the closed state, and the gap 23 can maintain the basic contact pressure of the electrical performance of the magnetic control switch vacuum arc chamber. Embodiment four

[0044] The embodiment provides a specific application occasion, and specifically:

[0045] The spring pull rod 2, the elastic pull rod 3 and the retaining wedge block 4 are arranged in the static iron core retaining rod 24, one side of the static iron core retaining rod 24 close to the moving iron core 5 is provided with a through groove 25, the retaining wedge block 4 moves left and right along the through groove 25, that is, extends or retracts to the through groove 25, when extending, the electromagnetic mechanism is in the closed state and is arranged at the lower part of the moving iron core 5, so that when strong vibration occurs, the moving iron core 5 moves downward and clamps the moving iron core 5, so that the moving iron core 5 still remains in the closed position; when retracting, the electromagnetic mechanism is in the open state and does not affect the movement of the moving iron core 5, so that the electromagnetic mechanism can smoothly realize the opening of the switch.

[0046] More preferably, the upper end of the static core retaining rod 24 is connected with the mounting plate 26, and the static core retaining rod 24 is connected with the mounting plate 26 through bonding, welding, screw connection or other well-known connection manners, and the lower end of the static core retaining rod 24 is provided with the unlocking electromagnet 1, and the elastic pull rod 3 extends to the unlocking electromagnet 1 through the lower end of the static core retaining rod 24, that is, the elastic pull rod 3 is connected with the unlocking moving iron core 9 of the unlocking electromagnet 1 through the lower end of the static core retaining rod 24. Embodiment five

[0047] A mechanical retaining method for a magnetic control mechanism, comprising the following processes:

[0048] When the magnetic control mechanism is in the closed state, the unlocking electromagnet 1 is powered off, the spring pull rod 2 and the elastic pull rod 3 control the retaining wedge 4 to be in the extended state, and the retaining wedge 4 is extended to the lower part of the moving iron core 5 of the magnetic control mechanism; preferably, the top of the retaining wedge 4 has a gap 23 before the lower part of the moving iron core 5, and the gap 23 can maintain the basic contact pressure of the electrical performance of the magnetic control switch vacuum arc-extinguishing chamber.

[0049] Preferably, when the magnetic control mechanism is in the open state, the processes include the following steps one and two:

[0050] Step one: the magnetic control driving controller controls the unlocking electromagnet 1 to be powered on, and the spring pull rod 2 and the elastic pull rod 3 control the retaining wedge 4 to rotate counterclockwise, so that the retaining wedge 4 is in the retracted state and does not affect the downward movement of the moving iron core 5; more specifically, the unlocking electromagnet 1 is powered on, the unlocking moving iron core 9 moves downward, the pull rod one 18, the moving block 19 and the pull rod two 21 move downward, the retaining wedge 4 rotates counterclockwise under the action of the elastic pull rod 3 and is in the retracted state, cannot be clamped to the moving iron core 5, and does not affect the downward movement of the moving iron core 5;

[0051] Step two: the magnetic control driving controller controls the magnetic control mechanism to be powered on, the moving iron core 5 moves downward, the moving iron core 5 is separated from the static iron core 6, and the open state of the magnetic control mechanism is realized.

[0052] The above unlocking electromagnet and magnetic control mechanism can be controlled by one magnetic control driving controller or two magnetic control driving controllers, and the person skilled in the art can make corresponding selection according to the specific conditions, which belongs to the conventional technical means, and the present application does not make any improvement, and will not be described here.

[0053] When the application is used, at least one set is installed around the magnetic control mechanism, after the closing operation of the moving iron core 5, the wedge block 4 is reset to the extended state under the action of the elastic pull rod 3 and the spring pull rod 2, and is extended to the lower part of the moving iron core 5, so that the moving iron core 5 can be kept in the closing position when strong vibration occurs; during the opening operation, the driver first controls the unlocking electromagnet 1 to act, the unlocking moving iron core 9 drives the spring pull rod 2 to move downward, so that the retaining wedge block 4 is driven to rotate counterclockwise through the elastic pull rod 3, without affecting the action of the moving iron core 5, the magnetic control mechanism receives the opening instruction and acts to open, and normal opening operation is performed.

[0054] In summary, if the application is in the closed state, the moving and static iron cores of the magnetic control mechanism are separated due to non-opening operation, such as strong vibration and other factors, so that the suction force is reduced and cannot be operated, the retaining wedge block can keep the moving iron core in the closed position, and misoperation of opening is not caused; the design of the mechanical retaining device is a double-insurance redundant design which will not cause misoperation, and will not affect the normal electric operation of the magnetic control mechanism, and is beneficial to improving the reliability of the magnetic control switch and can be applied to special occasions, such as ships.

[0055] In the specification provided by the application, a large number of specific details are described; however, it can be understood that the embodiments of the application can be practiced without these specific details, and in some examples, well-known methods, structures and techniques are not shown in detail in order not to obscure the understanding of the specification.

[0056] Similarly, it should be appreciated that the individual features of the application are sometimes grouped together in a single embodiment, figure or description of a figure for reasons of brevity and clarity; however, the method of the disclosure should not be interpreted as reflecting an intention that the claimed application requires more features than are explicitly recited in each claim. Rather, the inventive aspects are defined solely by the claims as follows, which reflect the application aspects as less than all of the features of the foregoing disclosed single embodiments. Accordingly, the claims appended to the detailed description are hereby expressly incorporated into this detailed description, in which each claim is a separate embodiment of the application.

[0057] In addition, those skilled in the art can understand that although some embodiments described herein include certain features included in other embodiments but not others, the combination of features of different embodiments means that it is within the scope of the application and forms different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

[0058] It should be noted that the above-mentioned embodiments illustrate rather than limit the application, and that one skilled in the art will be able to design many alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word 'comprising' does not exclude the presence of elements or steps other than those listed in a claim. The word 'a' or 'an' preceding an element does not exclude the presence of a plurality of such elements. The application can be implemented by means of both hardware and software, and any combination thereof. In a unit claim, several devices can be listed with a comma. The use of the term 'about' along with a numerical value modifies that value, for example, 'about 5 minutes' means '5 minutes ± 0.5 minutes'. The word 'comprise', and variations such as 'comprising', 'comprises' and 'comprised of', when used in this document are used on the basis and understanding that they do not exclude the presence of other elements or additional steps.

[0059] To the extent various modifications and adaptations of the application are within the spirit and scope of the application, as set forth in the claims, the application should not be construed to be limited to the specific examples described herein. Features of the disclosed embodiments can be more or less combined and other various embodiments can be directed to other like applications, all of which do not depart from the spirit and scope of the present application.

[0060] The preferred embodiments of the application described above are illustrative rather than limiting in nature. Many variations and modifications of the application will become apparent to those skilled in the art on review of this disclosure, and the generic principles described herein can be applied to other variations and modifications not expressly described above without departing from the scope of the application as set forth in the claims. Thus, the scope of the application is not to be unduly limited by specific examples described herein.

[0061] It should be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described again.

[0062] Furthermore, the various embodiments of the application can also be combined with each other, as long as they do not conflict with each other, and the application should be considered as disclosed.

Claims

1. A mechanical holding device for a magnetron mechanism, characterized in that: The invention comprises an unlocking electromagnet (1), wherein the unlocking electromagnet (1) is connected to the lower end of a spring pull rod (2), the upper end of the spring pull rod (2) is rotatably connected to one end of an elastic pull rod (3), the other end of the elastic pull rod (3) is connected to one end of a retaining wedge (4), the other end of the retaining wedge (4) is connected to the spring pull rod (2), and the spring pull rod (2) and the elastic pull rod (3) drive the retaining wedge (4) to rotate clockwise or counterclockwise; the unlocking electromagnet (1) comprises an unlocking static iron core (8), the upper part of the unlocking static iron core (8) is provided with an unlocking moving iron core (9), and the unlocking moving iron core (9) is connected to the lower end of the spring pull rod (2); the spring pull rod (2) comprises a pull rod 1 (18) connected to the unlocking electromagnet (1), the upper part of the pull rod 1 (18) is connected to a moving block (19), and the moving block (19) is provided with a A sliding groove (20), a pull rod (21) is provided on the upper part of the moving block (19), a spring (22) is provided on the pull rod (21), and the pull rod (21) is connected to the elastic pull rod (3); a fixed pin (27) is provided in the sliding groove (20) to match it, and the moving block (19) moves up and down along the fixed pin (27) through the sliding groove (20), and the fixed pin (27) is rotatably connected to the retaining wedge (4); the spring pull rod (2), the elastic pull rod (3), and the retaining wedge (4) are arranged in the static iron core retaining rod (24), and a through groove (25) is provided on the side of the static iron core retaining rod (24) close to the moving iron core (5), and the retaining wedge (4) moves along the through groove (25); when the magnetic control mechanism is in the closed state, there is a gap (23) between the top of the retaining wedge (4) and the moving iron core (5).

2. A mechanical holding device for a magnetron mechanism according to claim 1, characterized in that: The upper end of the static iron core retaining rod (24) is connected to the mounting plate (26), the lower end of the static iron core retaining rod (24) is provided with the unlocking electromagnet (1), and the spring pull rod (2) extends to the unlocking electromagnet (1) through the lower end of the static iron core retaining rod (24).

3. A method for holding a mechanical holding device for a magnetron mechanism according to claim 1 or 2, characterized in that: The process includes the following: When the magnetic control mechanism is in a closed state, the unlocking electromagnet (1) is powered off, and the spring pull rod (2) and the elastic pull rod (3) control the wedge block (4) to be in an extended state, and the wedge block (4) is extended to the lower part of the moving iron core (5) of the magnetic control mechanism.

4. A mechanical holding method for a magnetron mechanism according to claim 3, characterized in that: There is a gap (23) between the retaining wedge (4) and the lower part of the moving iron core (5).

5. The mechanical holding method for a magnetron mechanism according to claim 3, characterized in that: When the magnetic control mechanism opens, it includes steps one and two: Step 1: Control the unlocking electromagnet (1) to be energized, and the spring pull rod (2) and the elastic pull rod (3) control the holding wedge (4) to rotate counterclockwise, so that the holding wedge (4) is in a retracted state without affecting the downward movement of the moving iron core (5); Step 2: The magnetron mechanism is controlled to be energized, the moving iron core (5) moves downward, and the moving iron core (5) is separated from the static iron core (6), thereby realizing the opening of the magnetron mechanism.

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