Electromagnetic driving device and change-over switch

Abstract

An electromagnetic driving device and a change-over switch relate to the low-voltage electrical technology field. The electromagnetic driving device comprises a rack, a driving piece, a first electromagnetic part and a second electromagnetic part, each of the first electromagnetic part and the second electromagnetic part comprises two mutually independent electromagnetic assemblies; a movable iron core of the electromagnetic assembly is connected with a pull rod; the movable iron core is driven to drive the pull rod to move so as to abut against the driving piece, and the driving piece is connected with a movable contact of the change-over switch. The two electromagnetic assemblies of the first electromagnetic part sequentially drive the pull rod to drive the driving piece to rotate in the clockwise direction, so that the moving contact is disconnected from the first power supply static contact and is in contact with the second power supply static contact; and the two electromagnetic assemblies of the second electromagnetic part sequentially drive the pull rod to drive the driving piece to rotate in the anticlockwise direction, so that the moving contact is disconnected from the second power supply static contact and is in contact with the first power supply static contact. According to the device, the power supply conversion process is quicker, the power supply switching time is shortened, and the power supply switching efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to low voltage electrical technology field, specifically, relate to a electromagnetic drive device and change over switch. BACKGROUND

[0002] Dual power automatic transfer switches are widely used in emergency power supply systems. Dual power automatic transfer switches can automatically switch a load circuit from one power source to another based on the condition of the power circuit, thereby maintaining the continuous and reliable operation of the load circuit. According to the number of working positions, dual power automatic transfer switches can be divided into two-position type and three-position type. The two-position type transfer switch includes two working positions, i.e. a first power source on position for connecting the first power source and a second power source on position for connecting the second power source; while the three-position type transfer switch further includes a double break position, in which the load circuit is disconnected from both the first power source and the second power source.

[0003] The existing change over switch usually adopts a double electromagnet pulling mode to realize the switching of the power source. For the three-position type change over switch, in the process from the closing of the first power source to the closing of the second power source, the same electromagnet is relied on to act twice in succession to complete the switching, the first action is to disconnect the first power source, and the second action is to close the second power source. In this mode, the electromagnet needs to complete an action and reset, and then perform the next action, which takes a long time, resulting in low efficiency of power source switching. SUMMARY

[0004] The utility model aims at providing a electromagnetic drive device and change over switch, its can through increasing the number of electromagnetic assembly and optimizing action sequence, make the power conversion process of change over switch more smooth, fast, effectively reduce the power switching time, improve the power switching efficiency and reliability.

[0005] The embodiment of the utility model is realized as follows:

[0006] In one aspect of the utility model, a electromagnetic drive device is provided, which comprises a rack, a driving member connected to the rack, a first electromagnetic part and a second electromagnetic part. The first electromagnetic part and the second electromagnetic part each include two independent electromagnetic assemblies. The moving iron core of the electromagnetic assembly is connected with a pull rod. The moving iron core is driven to move the pull rod to abut against the driving member, and the driving member is connected with the moving contact of the change over switch.

[0007] The two electromagnetic assemblies of the first electromagnetic part drive the pull rod to rotate the driving member in the clockwise direction in turn, so as to disconnect the moving contact from the first power source static contact of the change over switch and connect it with the second power source static contact of the change over switch. The two electromagnetic assemblies of the second electromagnetic part drive the pull rod to rotate the driving member in the counterclockwise direction in turn, so as to disconnect the moving contact from the second power source static contact and connect it with the first power source static contact.

[0008] Optionally, the first electromagnetic part and the second electromagnetic part are arranged in a stacked manner; the two electromagnetic components of the first electromagnetic part and the two electromagnetic components of the second electromagnetic part are arranged side by side, and the side-by-side direction of the two electromagnetic components is perpendicular to the stacking direction of the first electromagnetic part and the second electromagnetic part.

[0009] Optionally, the pull rod is located at the end of the movable core and extends towards the driving piece; an end of the pull rod away from the movable core is provided with a lever, and the lever is pivotally and limitingly connected with the pull rod to abut against the driving piece and drive the driving piece to rotate.

[0010] Optionally, the two pull rods connected with the first electromagnetic part are arranged opposite to the two pull rods connected with the second electromagnetic part.

[0011] Optionally, the driving piece comprises a first driving part and a second driving part, and the first driving part and the second driving part are in an integrated structure, or the first driving part and the second driving part are arranged at opposite ends of the connecting shaft, respectively.

[0012] The opposite sides of the first driving part and the second driving part are respectively provided with abutting grooves which are adapted to the structure of the lever; the pull rod of the first electromagnetic part can abut against the abutting groove on the side of the first electromagnetic part through the lever, and drive the driving piece to rotate in a clockwise direction; the pull rod of the second electromagnetic part can abut against the abutting groove on the side of the second electromagnetic part through the lever, and drive the driving piece to rotate in an anticlockwise direction.

[0013] Optionally, the setting direction of the rack is parallel to the movement direction of the pull rod; the driving piece is provided with a connecting part at an end close to the rack, and the driving piece is connected with the movable contact of the change-over switch through the connecting part.

[0014] Optionally, the electromagnetic component further comprises a static core, a coil and a reset piece; the static core is arranged side by side with the movable core, and the coil is sleeved on the outer wall of the static core; one end of the reset piece is fixedly connected with the rack, and the other end is fixedly connected with the movable core; when the coil is electrified, the movable core moves towards the static core to store energy for the reset piece; when the coil is de-energized, the reset piece releases energy to make the movable core move away from the coil.

[0015] Optionally, one of the electromagnetic components of the first electromagnetic part drives the pull rod to drive the driving piece to rotate in a clockwise direction, so as to switch the change-over switch from the first power-on position to the double-split position; the other electromagnetic component of the first electromagnetic part drives the pull rod to continue to drive the driving piece to rotate in a clockwise direction, so as to switch the change-over switch from the double-split position to the second power-on position.

[0016] Optionally, one of the electromagnetic components of the second electromagnetic part drives the pull rod to drive the driving member to rotate in the counterclockwise direction, so that the change-over switch is switched from the second power-on position to the double-break position; the other electromagnetic component of the second electromagnetic part drives the pull rod to continue to drive the driving member to rotate in the counterclockwise direction, so that the change-over switch is switched from the double-break position to the first power-on position.

[0017] In another aspect of the utility model, a change-over switch is provided, which comprises a moving contact, a first power supply static contact, a second power supply static contact and an electromagnetic driving device; the electromagnetic driving device comprises a first electromagnetic part, a second electromagnetic part and a driving member; the driving member is connected with the moving contact; the first electromagnetic part and the second electromagnetic part each comprise two electromagnetic components which are arranged side by side and independent of each other; the moving iron core of the electromagnetic component is connected with a pull rod;

[0018] The two electromagnetic components of the first electromagnetic part drive the pull rod to drive the driving member to rotate in the clockwise direction in turn, so that the moving contact is disconnected from the first power supply static contact and connected with the second power supply static contact; the two electromagnetic components of the second electromagnetic part drive the pull rod to drive the driving member to rotate in the counterclockwise direction in turn, so that the moving contact is disconnected from the second power supply static contact and connected with the first power supply static contact.

[0019] Optionally, the moving contact comprises at least one, and when the moving contact comprises multiple, the multiple moving contacts are arranged side by side and connected with the driving member in turn.

[0020] The utility model has the following beneficial effects at least one of which is included:

[0021] The utility model provides a kind of electromagnetic driving device, including rack, driving member connected with rack, first electromagnetic part and second electromagnetic part;First electromagnetic part and second electromagnetic part each include two independent electromagnetic components;The moving iron core of electromagnetic component is connected with pull rod;Moving iron core can drive pull rod to move to with driving member abut, driving member is connected with the moving contact of change-over switch;The two electromagnetic components of first electromagnetic part drive pull rod to drive driving member to rotate in the clockwise direction in turn, so that the moving contact is disconnected from the first power supply static contact of change-over switch and connected with the second power supply static contact of change-over switch;The two electromagnetic components of second electromagnetic part drive pull rod to drive driving member to rotate in the counterclockwise direction in turn, so that the moving contact is disconnected from the second power supply static contact and connected with the first power supply static contact, so that the mode of driving in turn can make power switching action more stable, orderly, save switching time;The electromagnetic driving device can be more smooth, fast by increasing the number of electromagnetic components and optimizing action sequence during power conversion, effectively reduce power switching time, improve power switching efficiency and reliability.

[0022] The utility model also provides a change-over switch, including movable contact, first power static contact, second power static contact and electromagnetic drive arrangement, electromagnetic drive arrangement includes first electromagnetic part, second electromagnetic part and drive piece, drive piece is connected with movable contact, first electromagnetic part and second electromagnetic part all include two electromagnetic assembly that sets up side by side and is independent of each other, the movable core of electromagnetic assembly is connected with pull rod, two electromagnetic assembly of first electromagnetic part drive pull rod in proper order drive piece rotates along clockwise direction to make movable contact and first power static contact break and contact with second power static contact, two electromagnetic assembly of second electromagnetic part drive pull rod in proper order drive piece rotates along counterclockwise direction to make movable contact and second power static contact break and contact with first power static contact. The change-over switch is provided with electromagnetic drive arrangement, makes the power conversion process of change-over switch more smooth, fast, effectively reduces power switching time, improves power switching efficiency and reliability. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be needed to use the drawings in the embodiment briefly introduced, should understand, the following drawings only shows some embodiments of the utility model, therefore should not be regarded as the limited, for ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other related drawings according to these drawings.

[0024] Figure 1 It is the structural schematic diagram of electromagnetic drive arrangement provided for the embodiment of the utility model one;

[0025] Figure 2 It is the structural schematic diagram of electromagnetic drive arrangement provided for the embodiment of the utility model two;

[0026] Figure 3 It is the structural schematic diagram of electromagnetic drive arrangement provided for the embodiment of the utility model three;

[0027] Figure 4 It is the detail of A place enlargement;

[0028] Figure 5 It is the structural schematic diagram of electromagnetic drive arrangement provided for the embodiment of the utility model four;

[0029] Figure 6 It is the structural schematic diagram of drive piece of electromagnetic drive arrangement provided for the embodiment of the utility model.

[0030] Icon: 100 - electromagnetic driving device; 110 - frame; 120 - driving piece; 121 - connecting shaft; 122 - driving disc; 1221 - abutting groove; 123 - connecting part; 130 - first electromagnetic part; 140 - second electromagnetic part; 150 - electromagnetic assembly; 151 - moving iron core; 152 - pull rod; 153 - push rod; 200 - movable contact. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0033] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0034] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, or the orientations or positional relationships commonly placed when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third", etc. are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0035] In addition, the terms "horizontal", "vertical", etc. do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0036] In the description of the utility model, still need explaining, unless another explicit provision and limitation, term "arrangement", "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be two elements inside the communication。For ordinary skilled person in the art, the above-mentioned terms can be understood in the specific meaning in the utility model according to specific circumstances.

[0037] Please refer to Figure 1 The embodiment provides an electromagnetic driving device 100, comprising a rack 110, a driving piece 120 connected with the rack 110, a first electromagnetic part 130 and a second electromagnetic part 140;The first electromagnetic part 130 and the second electromagnetic part 140 both include two independent electromagnetic components 150;The moving iron core 151 of the electromagnetic component 150 is connected with the pull rod 152;The moving iron core 151 is driven to drive the pull rod 152 to move to abut with the driving piece 120, and the driving piece 120 is connected with the moving contact 200 of the change-over switch;

[0038] The two electromagnetic components 150 of the first electromagnetic part 130 drive the pull rod 152 in turn to drive the driving piece 120 to rotate in the clockwise direction, so that the moving contact 200 is disconnected with the first power supply static contact of the change-over switch and connected with the second power supply static contact of the change-over switch;The two electromagnetic components 150 of the second electromagnetic part 140 drive the pull rod 152 in turn to drive the driving piece 120 to rotate in the counterclockwise direction, so that the moving contact 200 is disconnected with the second power supply static contact and connected with the first power supply static contact.

[0039] Specifically, as Figure 1 The utility model provides an electromagnetic driving device 100, which comprises a rack 110, the rack 110 can provide support structure for the whole device;The first electromagnetic part 130, the second electromagnetic part 140 and the driving piece 120 are fixedly connected with the rack 110.

[0040] The first electromagnetic part 130 and the second electromagnetic part 140 each include two electromagnetic components 150. These electromagnetic components 150 are independent of each other and do not affect each other when working. This way makes the two electromagnetic components 150 of the first electromagnetic part 130 and the electromagnetic components 150 of the second electromagnetic part 140 drive the driving piece 120 to rotate in turn when the electromagnetic driving device 100 drives the power switch. Compared with the existing technology, the change-over switch relies on the same electromagnet to complete the switching twice in succession when switching the power. The application drives the driving piece 120 to rotate in turn by two independent electromagnetic components 150, which can make the power switching process faster and smoother, improve the power switching efficiency and reliability.

[0041] The electromagnetic driving device 100 can drive the change-over switch to switch from the first power supply to the second power supply by the first electromagnetic part 130, and the switching process is as follows: the two electromagnetic components 150 of the first electromagnetic part 130 drive the pull rod 152 to drive the driving member 120 to rotate in the clockwise direction in turn, after one of the electromagnetic components 150 drives the driving member 120 to rotate in the clockwise direction by a preset angle for the first time through the pull rod 152, the movable contact 200 is disconnected from the first power supply static contact and reaches the double-break position, as shown in FIG. 2B; then, the other electromagnetic component 150 of the first electromagnetic part 130 continues to drive the driving member 120 to rotate in the clockwise direction by a preset angle, at this time, the movable contact 200 moves from the double-break position to contact the second power supply static contact, so as to realize the switching from the first power supply to the second power supply, as shown in FIG. 2C. Figure 2 Figure 3

[0042] The electromagnetic driving device 100 can drive the change-over switch to switch from the second power supply to the first power supply by the second electromagnetic part 140, and the switching process is as follows: the two electromagnetic components 150 of the second electromagnetic part 140 drive the pull rod 152 to drive the driving member 120 to rotate in the counterclockwise direction in turn, after one of the electromagnetic components 150 drives the driving member 120 to rotate in the counterclockwise direction by a preset angle for the first time through the pull rod 152, the movable contact 200 is disconnected from the second power supply static contact and reaches the double-break position; then, the other electromagnetic component 150 of the second electromagnetic part 140 continues to drive the driving member 120 to rotate in the counterclockwise direction by a preset angle, at this time, the movable contact 200 moves from the double-break position to contact the first power supply static contact, so as to realize the switching from the second power supply to the first power supply.

[0043] It should be noted that, first, in an embodiment of the present application, as shown in FIG. 1A, the first electromagnetic part 130 and the second electromagnetic part 140 are stacked; the two electromagnetic components 150 of the first electromagnetic part 130 and the two electromagnetic components 150 of the second electromagnetic part 140 are arranged side by side, and the side-by-side direction of the two electromagnetic components 150 is perpendicular to the stacking direction of the first electromagnetic part 130 and the second electromagnetic part 140. Figure 1

[0044] Specifically, the first electromagnetic part 130 and the second electromagnetic part 140 are respectively arranged opposite to the driving member 120, and the first electromagnetic part 130 and the second electromagnetic part 140 are stacked. Such an arrangement can reduce the space occupied by the device in the horizontal direction, so that the structure of the electromagnetic driving device 100 is more compact, and in actual application scenarios, such a compact structure can be more convenient for installation and layout. The two electromagnetic components 150 included in the first electromagnetic part 130 and the second electromagnetic part 140 are arranged side by side, which can facilitate the pull rod of the first electromagnetic part 130 and the second electromagnetic part 140 to pull the driving member 120 to rotate in the same direction in turn, so as to realize the orderly switching of the power supply. ​​​

[0045] Second, in an embodiment of the present application, as shown in Figure 1 The setting direction of the rack 110 is parallel to the movement direction of the pull rod 152; the driving member 120 is provided with a connecting portion 123 at one end close to the rack 110, and the driving member 120 is connected with the moving contact 200 of the change-over switch through the connecting portion 123.

[0046] Specifically, as shown in Figure 1 The rack 110 provides support force for the first electromagnetic part 130, the second electromagnetic part 140 and the driving member 120, so the rack 110 is arranged on the same side of the driving member 120 of the first electromagnetic part 130 and the second electromagnetic part 140, and the setting direction of the rack 110 is parallel to the movement direction of the pull rod 152, which can provide support force for the first electromagnetic part 130, the second electromagnetic part 140 and the driving member 120, and ensure that the first electromagnetic part 130 and the second electromagnetic part 140 are arranged opposite to the driving member 120, without affecting the process of rotating the driving member 120 by the electromagnetic assembly 150 to realize power switching. The driving member 120 is provided with a connecting portion 123 at one end close to the rack 110, and the connecting portion 123 can be connected with the moving contact 200 of the change-over switch, so that the movement of the driving member 120 can be accurately transmitted to the moving contact 200 of the change-over switch. When the driving member 120 rotates under the action of the pull rod 152, the moving contact 200 can move synchronously through the connecting portion 123 to realize the contact or disconnection operation with different power static contacts.

[0047] Second, in an embodiment of the present application, as shown in Figure 1 The two pull rods 152 connected with the first electromagnetic part 130 are arranged opposite to the two pull rods 152 connected with the second electromagnetic part 140.

[0048] Specifically, in the power switching operation, the opposite arrangement of the two pull rods 152 connected with the first electromagnetic part 130 and the two pull rods 152 connected with the second electromagnetic part 140 can ensure that the driving member 120 is subjected to the force of two groups of pull rods 152 in different directions, so as to more accurately complete the clockwise and counterclockwise rotation actions, thereby realizing the smooth switching of the moving contact 200 of the change-over switch between the first power static contact and the second power static contact, and improving the accuracy and fluency of the power switching process.

[0049] Third, the electromagnetic assembly 150 further comprises a static core, a coil and a reset member (not shown in the figure), the static core is arranged side by side with the moving core 151, and the coil is sleeved on the outer wall of the static core; one end of the reset member is fixedly connected with the rack 110, and the other end is fixedly connected with the moving core 151; the coil is energized, the moving core 151 moves towards the static core to store energy for the reset member; the coil is de-energized, the reset member releases energy to make the moving core 151 move away from the coil.

[0050] Specifically, when the coil is powered, the current passes through the coil and rapidly generates a magnetic field around the coil, so that the static iron core is magnetized and the moving iron core 151 moves towards the static iron core. During the movement of the moving iron core 151 to the static iron core, since one end of the reset member is fixedly connected with the moving iron core 151, the movement of the moving iron core 151 will compress the reset member, so that the reset member stores energy. When the first electromagnetic part 130 and the second electromagnetic part 140 drive the moving iron core 151 to move to the double split position, the coil is powered off, at this time, the reset member can release energy and drive the moving iron core 151 and the pull rod 152 to restore to the original position, so as to prepare for the next switching power supply process. Through the setting of the reset member, the electromagnetic driving device 100 can repeatedly and stably work, and the service life and working efficiency of the device are improved.

[0051] The electromagnetic driving device 100 provided by the utility model, comprising a rack 110, a driving member 120 connected with the rack 110, a first electromagnetic part 130 and a second electromagnetic part 140; the first electromagnetic part 130 and the second electromagnetic part 140 all comprise two mutually independent electromagnetic assemblies 150, the moving iron core 151 of the electromagnetic assembly 150 is connected with a pull rod 152; the moving iron core 151 is driven to drive the pull rod 152 to move to abut against the driving member 120, the driving member 120 is connected with the moving contact 200 of the change-over switch; the two electromagnetic assemblies 150 of the first electromagnetic part 130 drive the pull rod 152 to drive the driving member 120 to rotate in the clockwise direction in turn, so that the moving contact 200 is disconnected with the first power supply static contact of the change-over switch and connected with the second power supply static contact of the change-over switch; the two electromagnetic assemblies 150 of the second electromagnetic part 140 drive the pull rod 152 to drive the driving member 120 to rotate in the counterclockwise direction in turn, so that the moving contact 200 is disconnected with the second power supply static contact and connected with the first power supply static contact, and the driving mode in turn can make the power switching action more stable and orderly, and save switching time; the electromagnetic driving device 100 can make the power conversion process more smooth and fast by increasing the number of electromagnetic assemblies 150 and optimizing the action sequence, effectively reduce the power switching time, and improve the power switching efficiency and reliability.

[0052] For example, as shown in Figure 2 one of the electromagnetic assemblies 150 of the first electromagnetic part 130 drives the pull rod 152 to drive the driving member 120 to rotate in the clockwise direction, so that the change-over switch is switched from the first power supply on position to the double split position, at this time, the change-over switch is disconnected with the first power supply. Figure 3 As shown in the other electromagnetic assembly 150 of the first electromagnetic part 130 drives the pull rod 152 to continue driving the driving member 120 to rotate in the clockwise direction, so that the change-over switch is switched from the double split position to the second power supply on position, and the other electromagnetic assembly 150 is reset under the action of the reset member, at this time, the change-over switch is connected with the second power supply.

[0053] For example, one of the electromagnetic components 150 of the second electromagnetic part 140 drives the pull rod 152 to drive the driving member 120 to rotate in the counterclockwise direction, so that the change-over switch is switched from the second power supply on position to the double split position, at this time, the change-over switch is disconnected with the second power supply; the other electromagnetic component 150 of the second electromagnetic part 140 drives the pull rod 152 to continue to drive the driving member 120 to rotate in the counterclockwise direction, so that the change-over switch is switched from the double split position to the first power supply on position, and the other electromagnetic component 150 is reset under the action of the reset member, at this time, the change-over switch is connected with the first power supply.

[0054] In an embodiment of the present application, as shown in Figure 4 The pull rod 152 is located at the end of the moving iron core 151 and extends towards the driving member 120; the end of the pull rod 152 away from the moving iron core 151 is provided with a push rod 153, the push rod 153 is pivotally and limitingly connected with the pull rod 152, so as to abut against the driving member 120 and drive the driving member 120 to rotate.

[0055] Specifically, in order to facilitate the rotation of the driving member 120, the end of the moving iron core 151 of the electromagnetic component 150 is fixedly connected with the pull rod 152, when the moving iron core 151 moves relative to the static iron core to approach or move away from the static iron core, the pull rod 152 can be driven to approach or move away from the driving member 120.

[0056] In order to enable the pull rod 152 to stably drive the driving member 120 to rotate, as shown in Figure 4 The end of the pull rod 152 is also provided with the push rod 153, the push rod 153 is pivotally and limitingly connected with the pull rod 152, through the arrangement of the push rod 153, the pull rod 152 can be clamped with the driving member 120 by the push rod 153, and then the driving member 120 is stably driven to rotate, so that the power switching process is more stable, fast and reliable.

[0057] Optionally, as shown in Figure 5 and Figure 6 The driving member 120 comprises a first driving part and a second driving part, the first driving part and the second driving part are in an integrated structure, or the first driving part and the second driving part are respectively arranged at opposite ends of the connecting shaft 121;

[0058] The opposite sides of the first driving part and the second driving part are respectively provided with abutting grooves 1221, the abutting grooves 1221 are structurally matched with the push rod 153; the pull rod 152 of the first electromagnetic part 130 can abut against the abutting groove 1221 on the side towards the first electromagnetic part 130 through the push rod 153, and drive the driving member 120 to rotate in the clockwise direction; the pull rod 152 of the second electromagnetic part 140 can abut against the abutting groove 1221 on the side towards the second electromagnetic part 140 through the push rod 153, and drive the driving member 120 to rotate in the counterclockwise direction.

[0059] Specifically, in one specific embodiment of the present application, the driving member 120 has a first driving part and a second driving part in an integrated structure, preferably, the driving member 120 can be a roller shaft with sufficient length; the pull rods 152 of the first electromagnetic part 130 and the second electromagnetic part 140 can realize the rotation of the driving member 120 by sequentially pulling the first driving part and the second driving part; in another specific embodiment of the present application, as shown in Figure 5 and Figure 6 the driving member 120 further comprises a connecting shaft 121, the connecting shaft 121 is rotationally connected with the plate surface of the rack 110; the first driving part and the second driving part are respectively arranged at opposite ends of the connecting shaft 121, and the pull rods 152 of the electromagnetic assembly 150 can drive the first driving part, the second driving part and the connecting shaft 121 to rotate together; preferably, the first driving part and the second driving part can be two identical driving discs 122.

[0060] In order to further improve the stability of the pull rod 152 when driving the driving disc 122 and the connecting shaft 121 to rotate, the opposite sides of the first driving part and the second driving part are respectively provided with abutting grooves 1221, the shape and position of the abutting grooves 1221 are matched with the shift rods 153 of the pull rods 152. The shift rods 153 of the two pull rods 152 of the first electromagnetic part 130 and the shift rods 153 of the two pull rods 152 of the second electromagnetic part 140 are respectively arranged at the opposite sides of the first driving part and the second driving part, so as to be clamped in the abutting grooves 1221. The shift rods 153 of the two pull rods 152 of the first electromagnetic part 130 can be clamped in the abutting grooves 1221 to sequentially drive the driving member 120 to rotate in the clockwise direction, and the shift rods 153 of the two pull rods 152 of the second electromagnetic part 140 can be clamped in the abutting grooves 1221 to sequentially drive the driving member 120 to rotate in the counterclockwise direction.

[0061] In another aspect of the present application, a change-over switch is provided, comprising a moving contact 200, a first power static contact, a second power static contact and an electromagnetic driving device 100; the electromagnetic driving device 100 comprises a first electromagnetic part 130, a second electromagnetic part 140 and a driving member 120; the driving member 120 is connected with the moving contact 200; the first electromagnetic part 130 and the second electromagnetic part 140 each comprise two electromagnetic assemblies 150 arranged side by side and independent of each other; the moving iron core 151 of the electromagnetic assembly 150 is connected with a pull rod 152;

[0062] The two electromagnetic assemblies 150 of the first electromagnetic part 130 sequentially drive the pull rod 152 to drive the driving member 120 to rotate in the clockwise direction, so as to disconnect the moving contact 200 from the first power static contact and connect the moving contact 200 with the second power static contact; the two electromagnetic assemblies 150 of the second electromagnetic part 140 sequentially drive the pull rod 152 to drive the driving member 120 to rotate in the counterclockwise direction, so as to disconnect the moving contact 200 from the second power static contact and connect the moving contact 200 with the first power static contact.

[0063] Specifically, the changeover switch includes a moving contact 200, a first power stationary contact and a second power stationary contact that can contact or separate from the moving contact 200, and also includes the aforementioned electromagnetic drive device 100. The electromagnetic drive device 100 includes a first electromagnetic part 130, a second electromagnetic part 140 and a drive member 120, wherein the drive member 120 is connected to the moving contact 200.

[0064] The first electromagnetic section 130 has two electromagnetic components 150, such as Figure 2 As shown, one of the electromagnetic components 150 can drive the drive member 120 to rotate clockwise, so that the moving contact 200 disconnects from the first power supply stationary contact and rotates to the double-open position; as Figure 3 As shown, another electromagnetic component 150 can continue to drive the drive member 120 to rotate clockwise so that the moving contact 200 contacts the second power stationary contact. At this time, the changeover switch is disconnected from the first power supply and connected to the second power supply.

[0065] The second electromagnetic unit 140 has two electromagnetic components 150. One electromagnetic component 150 can drive the drive member 120 to rotate counterclockwise so that the moving contact 200 is disconnected from the second power stationary contact and rotates to the double-open position. The other electromagnetic component 150 can continue to drive the drive member 120 to rotate counterclockwise so that the moving contact 200 contacts the first power stationary contact. At this time, the changeover switch is disconnected from the second power supply and connected to the first power supply.

[0066] The transfer switch, through the inclusion of the electromagnetic drive device 100, makes the power switching process smoother and faster, effectively reducing power switching time and improving power switching efficiency and reliability. The specific structure and beneficial effects of the electromagnetic drive device 100 have been described in detail above and will not be repeated here.

[0067] It should be noted that this application does not limit the number of moving contacts 200, and the moving contact 200 includes at least one, such as Figure 6 As shown, when multiple moving contacts 200 are included, the multiple moving contacts 200 are arranged side by side and connected to the driving member 120 in sequence. The first electromagnetic part 130 or the second electromagnetic part 140 can drive the driving member 120 to rotate, so as to realize the movement of the multiple moving contacts 200, thereby realizing the power switching of the multi-pole changeover switch.

[0068] The above description is merely an optional embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0069] In addition, it should be noted that various specific technical features described in the foregoing embodiments can be combined in any appropriate manner without contradiction, and to avoid unnecessary repetition, the present application will not describe various possible combinations again.

Claims

1. An electromagnetic drive device, characterized by, The utility model relates to a kind of switch driving mechanism, including rack (110), driving member (120) connected with the rack (110), first electromagnetic part (130) and second electromagnetic part (140);The first electromagnetic part (130) and the second electromagnetic part (140) are both including two mutually independent electromagnetic components (150);The moving iron core (151) of the electromagnetic component (150) is connected with pull rod (152);The moving iron core (151) is driven to be able to drive the pull rod (152) movement to with driving member (120) abut, driving member (120) is connected with moving contact (200) of change-over switch; Two electromagnetic components (150) of the first electromagnetic part (130) sequentially drive pull rod (152) drive driving member (120) rotate in clockwise direction, to make moving contact (200) with the first power static contact of change-over switch disconnect and with the second power static contact of change-over switch contact;Two electromagnetic components (150) of the second electromagnetic part (140) sequentially drive pull rod (152) drive driving member (120) rotate in counterclockwise direction, to make moving contact (200) with the second power static contact disconnect and with the first power static contact contact.

2. The electromagnetic drive device according to claim 1, characterized by The first electromagnetic part (130) and the second electromagnetic part (140) are stacked; Two electromagnetic components (150) of the first electromagnetic part (130) and two electromagnetic components (150) of the second electromagnetic part (140) are both side by side, and the side by side direction of two electromagnetic components (150) is perpendicular to the stacking direction of the first electromagnetic part (130) and the second electromagnetic part (140).

3. The electromagnetic drive device according to claim 1, characterized by The pull rod (152) is located at the end of the moving iron core (151) and extends towards the driving member (120);The end of the pull rod (152) away from the moving iron core (151) is provided with a lever (153), and the lever (153) is pivotally connected with the pull rod (152) to abut with the driving member (120) and drive the driving member (120) to rotate.

4. The electromagnetic driving device according to claim 1, characterized by Two pull rods (152) connected by the first electromagnetic part (130) are oppositely arranged with two pull rods (152) connected by the second electromagnetic part (140).

5. The electromagnetic drive device according to claim 3, characterized by The driving member (120) includes first driving part and second driving part, and the first driving part and the second driving part are in an integrated structure, or the first driving part and the second driving part are respectively arranged at opposite ends of a connecting shaft (121). The first driving part and the second driving part are respectively provided with abutting grooves (1221) which are matched with the shifting rod (153); the pull rod (152) of the first electromagnetic part (130) can abut against the abutting groove (1221) on the side of the first electromagnetic part (130) through the shifting rod (153) and drive the driving piece (120) to rotate in the clockwise direction; the pull rod (152) of the second electromagnetic part (140) can abut against the abutting groove (1221) on the side of the second electromagnetic part (140) through the shifting rod (153) and drive the driving piece (120) to rotate in the counterclockwise direction.

6. The electromagnetic drive device according to claim 5, characterized by The setting direction of the rack (110) is parallel to the movement direction of the pull rod (152); one end of the driving piece (120) close to the rack (110) is provided with a connecting part (123), and the driving piece (120) is connected with the moving contact (200) of the change-over switch through the connecting part (123).

7. The electromagnetic driving apparatus according to claim 1, wherein The electromagnetic assembly (150) further comprises a static core, a coil and a reset piece, the static core is arranged side by side with the moving core (151), and the coil is sleeved on the outer wall of the static core; one end of the reset piece is fixedly connected with the rack (110), and the other end is fixedly connected with the moving core (151); the coil is electrified, the moving core (151) moves towards the static core to store energy for the reset piece; the coil is de-energized, the reset piece releases energy to make the moving core (151) move away from the coil.

8. The electromagnetic drive device according to claim 7, characterized by One of the electromagnetic assemblies (150) of the first electromagnetic part (130) drives the pull rod (152) to drive the driving piece (120) to rotate in the clockwise direction, so that the change-over switch is switched from the first power-on position to the double-split position; the other electromagnetic assembly (150) of the first electromagnetic part (130) drives the pull rod (152) to continue to drive the driving piece (120) to rotate in the clockwise direction, so that the change-over switch is switched from the double-split position to the second power-on position.

9. The electromagnetic drive device according to claim 7, characterized by One of the electromagnetic assemblies (150) of the second electromagnetic part (140) drives the pull rod (152) to drive the driving piece (120) to rotate in the counterclockwise direction, so that the change-over switch is switched from the second power-on position to the double-split position; the other electromagnetic assembly (150) of the second electromagnetic part (140) drives the pull rod (152) to continue to drive the driving piece (120) to rotate in the counterclockwise direction, so that the change-over switch is switched from the double-split position to the first power-on position.

10. A transfer switch, characterized in that The electromagnetic drive device (100) comprises a moving contact (200), a first power static contact, a second power static contact, and the electromagnetic drive device (100) in any one of claims 1-9; the electromagnetic drive device (100) comprises a first electromagnetic part (130), a second electromagnetic part (140), and a driving member (120); the driving member (120) is connected with the moving contact (200); the first electromagnetic part (130) and the second electromagnetic part (140) each comprise two electromagnetic assemblies (150) arranged side by side and independent of each other; a moving iron core (151) of the electromagnetic assembly (150) extends partially to outside of the rack (110) and is connected with a pull rod (152); the two electromagnetic assemblies (150) of the first electromagnetic part (130) drive the pull rod (152) in sequence to drive the driving member (120) to rotate in a clockwise direction, so that the moving contact (200) is disconnected from the first power static contact and connected with the second power static contact; the two electromagnetic assemblies (150) of the second electromagnetic part (140) drive the pull rod (152) in sequence to drive the driving member (120) to rotate in an anticlockwise direction, so that the moving contact (200) is disconnected from the second power static contact and connected with the first power static contact.

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