Automatic change-over switch

Abstract

An automatic change-over switch comprises a switching mechanism and an electric operation device, and the electric operation device is used for driving the switching mechanism to achieve switching between a frequently-used power supply and a standby power supply and comprises an electromagnetic mechanism, a guide plate, a push rod, a guide rod and an ejector rod. The electromagnetic mechanism is used for driving the push rod to move towards the zero position from two release positions and cross the zero position, the push rod drives the ejector rod to push the guide rod when moving towards the zero position, the guide rod moves along the second guide groove and stores energy for the spring, and the spring releases energy when the push rod crosses the zero position. The spring drives the guide rod to move along the second slide, the push rod is pushed by the ejector rod to be away from the zero position and move to the other release position, a middle position used for changing the moving direction of the push rod does not need to be independently arranged, and the push rod is driven by the electromagnetic mechanism to move between the two release positions. The moving direction of the push rod does not need to be changed in the moving process, and the device has the advantages of being simple and compact in structure and small in size.

Description

Technical Field

[0001] The utility model relates to the field of low-voltage electrical appliances, in particular to an automatic transfer switch. Background Art

[0002] Automatic transfer switches are often used to provide power for important occasions. Automatic transfer switches can switch between normal power and backup power. The operating mechanism is an important part of the transfer switch electrical appliance. It is a transmission structure that realizes the switching between normal power and backup power. When the normal power cannot supply power, it switches to the backup power for power supply. Due to the prevalence of home solar power generation, the demand for home automatic transfer switches will also increase. However, the structure of existing home automatic transfer switches is complex and the appearance of automatic transfer switches is relatively large. In addition, there is also the problem of small structural stroke, which leads to too small opening distance of the contact system. Utility Model Content

[0003] The utility model aims to overcome at least one defect of the prior art and provide an automatic transfer switch.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] An automatic transfer switch, a transfer mechanism and an electric operating device, the electric operating device is used to drive the transfer mechanism to realize the transfer of a common power supply and a backup power supply, the electric operating device comprises an electromagnetic mechanism, a guide plate, a push rod, a guide rod and a push rod, the guide rod is connected to a spring, the push rod is rotatably connected to the push rod and the guide rod respectively, the guide plate is provided with a first guide groove and a second guide groove for inserting the push rod and the guide rod respectively, the first guide groove is provided with a zero position and two release positions relatively arranged on both sides of the zero position, when the push rod moves to one of the release positions, the push rod drives the transfer mechanism to control the power supply of the common power supply and disconnect the backup power supply, when the push rod moves to the other release position, the push rod drives the transfer mechanism to control the power supply of the backup power supply and disconnect the common power supply;

[0006] The electromagnetic mechanism is used to drive the push rod to move from the two release positions to the zero position and cross the zero position respectively. When the push rod moves to the zero position, it drives the push rod to push the guide rod, so that the guide rod moves along the second guide groove and stores energy for the spring. When the push rod crosses the zero position, the spring releases energy, so that the spring drives the guide rod to move along the second sliding position, and pushes the push rod away from the zero position and moves to another release position through the push rod.

[0007] Preferably, the center line of the spring is set corresponding to the zero point position, and when the push rod is respectively located at the two release positions, the center line of the push rod is relatively set on both sides of the center line of the spring, and the electromagnetic mechanism is used to drive the push rod to move along the first guide groove close to the center line of the spring, and the component direction of the spring elastic force along the first guide groove is opposite to the movement direction of the push rod, and the push rod pushes the guide rod to move along the second guide groove through the push rod and stores energy for the spring, and at the same time drives the push rod to rotate around the guide rod, and when the center line of the push rod rotates to the other side opposite to the center line of the spring, the push rod passes the zero point position and releases the spring, and the component direction of the spring elastic force along the first guide groove is the same as the movement direction of the push rod, and the spring drives the guide rod to move along the second slide groove, and the guide rod pushes the push rod through the push rod, so that the push rod moves quickly away from the zero point position along the first guide groove, and the push rod drives the conversion mechanism to rotate.

[0008] Preferably, the first guide grooves are arranged in a straight line, the second guide grooves are arranged in a straight line, the center line of the second guide groove is perpendicular to the center line of the first guide groove, and the center line of the first guide groove corresponds to the zero point position.

[0009] Preferably, the push rod is connected to the conversion mechanism via a connecting rod.

[0010] Preferably, a connecting rod is provided, which includes a first lever and a second lever relatively arranged on both sides of the connecting rod's rotation center, the first lever and the second lever are respectively used to connect the push rod and the conversion mechanism, the push rod drives the second lever to rotate through the first lever, so that the second lever drives the conversion mechanism to rotate.

[0011] Preferably, the length of the first lever is smaller than the length of the second lever.

[0012] Preferably, the first lever and the second lever are respectively provided with a first slide groove and a second slide groove, and the length directions of the first slide groove and the second slide groove are respectively arranged parallel to the length direction of the connecting rod, the first slide groove is sleeved on the push rod, the push rod can push the first slide groove to drive the connecting rod to rotate, and the push rod can slide along the length direction of the first slide groove, and the conversion mechanism is provided with a transmission rod for inserting into the second slide groove, and the transmission rod can slide along the second slide groove.

[0013] Preferably, the first lever is provided with a support portion, the width of the support portion is greater than the width of the first lever, the support portion is provided with an avoidance hole, at least one guide rod is inserted into the avoidance hole, and the avoidance hole is used to avoid the guide rod.

[0014] Preferably, the conversion mechanism includes a conversion part, a transmission part and a rotating part. The push rod of the electric operating device is used to drive the rotating part to rotate, and the rotating part drives the conversion part to rotate through the transmission part. The conversion part is used to drive the moving contact to rotate so that the moving contact contacts the static contact of the normal power supply or the static contact of the backup power supply.

[0015] Preferably, the rotating member is provided with an operating handle extending outside the shell for manual operation, the operating handle is used to drive the rotating member to rotate, and the rotating member drives the push rod to move from the release position to the zero position and beyond the zero position through the connecting rod.

[0016] Preferably, the electromagnetic mechanism includes two electromagnetic coils arranged opposite to each other, a driving rod is provided between the two electromagnetic coils, the driving rod is rotatably connected to the push rod, and the two electromagnetic coils are respectively used to drive the driving rod to move in opposite directions, so that the driving rod drives the push rod to move along the first guide groove to two release positions.

[0017] Preferably, the driving rod includes two integrally arranged iron core parts and a driving part located between the two iron core parts, wherein the driving part is provided with a driving hole for inserting the push rod so that the driving part is rotatably connected to the push rod, and the two iron core parts are respectively used to be inserted into the two electromagnetic coils.

[0018] Preferably, two opposite avoidance surfaces are provided in the radial direction of the driving portion, and the distance between the two avoidance surfaces is smaller than the diameter of the driving portion.

[0019] Preferably, there are two guide rods and two push rods, the spring is a tension spring, the spring is connected between the two guide rods, the guide plate is provided with two second guide grooves for respectively inserting the guide rods, the two second guide grooves are relatively arranged on both sides of the first guide groove, the push rod is rotatably connected to the two guide rods through the two push rods, when the push rod moves toward the zero position, the two guide rods are pushed respectively by the two push rods, so that the two guide rods move away from each other along the second guide grooves, and the spring is stretched to store spring energy during the movement, when the push rod passes the zero position, the spring is used to pull the two guides to move closer to each other along the second guide groove, and push the push rod respectively by the two push rods, so that the push rod quickly moves away from the zero position.

[0020] Preferably, the two push rods are relatively arranged on both sides of the guide plate, and the ends of the two push rods away from the push rod are symmetrically arranged on both sides of the first guide groove. The two push rods respectively apply to the push rod components parallel to the first guide groove that are equal in magnitude and in the same direction, and the two push rods respectively apply to the push rod components perpendicular to the first guide groove that are equal in magnitude but in opposite directions.

[0021] Preferably, two springs are provided, the two springs are arranged oppositely on both sides of the guide plate, and the two springs are respectively connected between the two ends of the two guide rods.

[0022] Preferably, the center lines of the two second guide grooves are located in the same straight line and are respectively arranged perpendicular to the center line of the first guide groove. The intersection position of the center line of the second guide groove and the center line of the first guide groove is the zero point position, and the two ends of the first guide groove are release positions respectively.

[0023] Preferably, it includes a shell with a partition, the partition is provided with a support column for connecting the guide plate, the support column allows the guide plate and the partition to be spaced apart, and a space for accommodating a connecting rod, a push rod, a guide rod and a spring is provided between the guide plate and the partition.

[0024] Preferably, the support column comprises a first support column and a second support column, the first support column and the second support column are relatively arranged on both sides of the driving rod, and the guide plate is connected to the first support column and the second support column respectively through a first screw and a second screw.

[0025] Preferably, two of the first support columns and two of the second support columns are provided, the two first support columns are located between the two electromagnetic coils, the two second support columns are respectively located on the sides of the two electromagnetic coils close to the operating handle, and the two second support columns are relatively arranged on both sides of the connecting rod, and the distance between the two second support columns is greater than the distance between the two first support columns.

[0026] Preferably, it includes a shell with a partition, the push rod is connected to the transmission rod on the rotating part through a connecting rod, the conversion part and the transmission part are arranged on one side of the partition, and the rotating part, electromagnetic mechanism, guide plate, push rod, guide rod, push rod and spring are arranged on the other side of the partition.

[0027] The automatic switching switch of this embodiment does not need to separately set an "intermediate position" for changing the moving direction of the push rod in the first guide groove. Only two release positions need to be set in the first guide groove. The push rod is driven by the electromagnetic mechanism to move between the two release positions, and the push rod does not need to change the moving direction during the movement of the push rod to the release position on the other side. It has the characteristics of simple structure, compact structure and small size. After crossing the zero position, the push rod is driven by the spring to quickly move away from the zero position, which can drive the moving contact to quickly open and close the switch, thereby accelerating the arc extinction speed during the switching process.

[0028] In addition, the length of the first lever is smaller than that of the second lever. When the first lever drives the second lever to rotate, the rotation angle of the second lever is greater than that of the first lever, thereby making the rotating member, the transmission member and the conversion member rotate at a larger angle. The conversion member can also drive the moving contact to rotate at a larger angle. When the moving contact is away from the moving contacts of the normal power supply and the backup power supply, it can also move a longer distance, thereby increasing the opening distance of the contact system and improving the arc extinguishing capability and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a front structural diagram of the automatic transfer switch of the utility model;

[0030] Figure 2 This is a schematic diagram of the back structure of the automatic transfer switch of the utility model;

[0031] Figure 3 It is a cross-sectional view of the automatic transfer switch of the utility model;

[0032] Figure 4 It is a front structural schematic diagram of the electric operating device of the utility model;

[0033] Figure 5 It is a schematic diagram of the back structure of the electric operation device of the utility model;

[0034] Figure 6 It is a structural schematic diagram of the guide plate of the utility model;

[0035] Figure 7 It is a structural schematic diagram of the connecting rod of the utility model;

[0036] Figure 8 It is a structural schematic diagram of the driving rod of the utility model;

[0037] Fig. 9 It is a structural schematic diagram of the housing of the utility model;

[0038] Figure 10-12 This is a schematic diagram of the motion process of the automatic transfer switch of the utility model;

[0039] In the figure, 11, conversion member; 12, transmission member; 13, rotating member; 131, operating handle; 2, guide plate; 3, push rod; 4, guide rod; 5, push rod; 6, spring; 21, first guide groove; 22, second guide groove; 7, connecting rod; 70, mounting hole; 700, mounting column; 71, first lever; 72, second lever; 73, first slide groove; 74, second slide groove; 111, transmission rod; 75, support part; 76, avoidance hole; 81, electromagnetic coil; 82, driving rod; 83, iron core part; 84, driving part; 80, driving hole; 85, avoidance surface; 90, partition; 91, first support column; 92, second support column; 201, first screw; 202, second screw; 203, connecting plate. DETAILED DESCRIPTION

[0040] The following is a further description of the specific implementation of the automatic transfer switch of the utility model in conjunction with the embodiments given in the accompanying drawings. The automatic transfer switch of the utility model is not limited to the description of the following embodiments.

[0041] like Figure 1-2As shown, the automatic transfer switch of this embodiment includes a conversion mechanism and an electric operating device. The electric operating device is used to drive the conversion mechanism to realize the conversion between the normal power supply and the backup power supply. The conversion mechanism in this embodiment includes a conversion member 11, a transmission member 12 and a rotating member 13. The rotating member 13 is connected to the conversion member 11 through the transmission member 12. The conversion member 11 is used to directly or indirectly drive the moving contact (not shown in the figure) to rotate, so that the moving contact contacts the static contact of the normal power supply or the static contact of the backup power supply. When the moving contact contacts the static contact of the normal power supply or the static contact of the backup power supply, it can control the corresponding normal power supply or the backup power supply, and disconnect the other at the same time. The electric operating device drives the conversion member 11 to rotate through the conversion mechanism to realize the conversion between the normal power supply and the backup power supply. The rotating member 13 is provided with an operating handle 131 extending outside the housing for manual operation. The operating handle 131 is used to drive the rotating member 13 to rotate, so that the rotating member 13 triggers the action of the electric operating device, and the above process is repeated through the electric operating device to drive the conversion member 11 to rotate; or the rotating member 13 directly drives the conversion member 11 to rotate to realize the conversion between the normal power supply and the backup power supply.

[0042] like Figure 3-6 As shown, an improvement of the present embodiment is that the electric operation device has the characteristics of simple structure, compact structure and small size. The electric operation device of the present embodiment comprises an electromagnetic mechanism, a guide plate 2, a push rod 3, a guide rod 4 and a push rod 5. The guide rod 4 is connected to a spring 6. The push rod 5 is rotatably connected to the push rod 3 and the guide rod 4 respectively. The guide plate 2 is provided with a first guide groove 21 and a second guide groove 22 for inserting the push rod 3 and the guide rod 4 respectively. The first guide groove 21 is provided with a zero position and two release positions relatively arranged on both sides of the zero position. When the push rod 3 moves to one of the release positions, the push rod 3 drives the conversion mechanism to control the power supply of the common power supply and disconnect the backup power supply. When the push rod 3 moves to the other release position, the push rod 3 drives the conversion mechanism to control the power supply of the backup power supply and disconnect the common power supply.

[0043] The electromagnetic mechanism is used to drive the push rod 3 to move from the two release positions to the zero position and pass the zero position respectively. When the push rod 3 moves to the zero position, it drives the push rod 5 to push the guide rod 4, so that the guide rod 4 moves along the second guide groove 22 and stores energy for the spring 6. When the push rod 3 passes the zero position, the spring 6 releases energy, so that the spring 6 drives the guide rod 4 to move along the second sliding position, and pushes the push rod 3 to continue moving through the push rod 5, so that the push rod 3 quickly moves away from the zero position and moves to another release position. In the process of moving away from the zero position, the push rod 3 drives the conversion member 11 to rotate through the rotating member 13, so that the conversion mechanism controls one of the normal power supply and the backup power supply to be powered off, and controls the other to be powered on.

[0044] like Figure 1As shown, the center line of the spring 6 is set corresponding to the zero point position. In the figure, the spring 6 corresponding to the zero point position is set on the side of the guide plate 2. When the push rod 3 is respectively located at the two release positions, the center line of the push rod 5 is relatively set on both sides of the center line of the spring 6. The electromagnetic mechanism is used to drive the push rod 3 to move along the first guide groove 21 close to the center line of the spring 6. The component direction of the spring 6 elastic force along the first guide groove 21 is opposite to the moving direction of the push rod 3. The push rod 3 pushes the guide rod 4 to move along the second guide groove 22 through the push rod 5 and stores energy for the spring 6. At the same time, it drives the push rod 5 to rotate around the guide rod 4. The center line of the push rod 5 rotates to When the center line of the spring 6 is reached, it rotates to the zero position. When the center line of the push rod 5 rotates to the other side opposite to the center line of the spring 6, the push rod 3 passes the zero position and releases the spring 6. The component direction of the spring 6 elastic force along the first guide groove 21 is the same as the moving direction of the push rod 3. The spring 6 drives the guide rod 4 to move along the second slide groove. The guide rod 4 pushes the push rod 3 through the push rod 5, so that the push rod 3 moves quickly away from the zero position along the first guide groove 21, and the push rod 3 pushes the rotating part 13 of the conversion mechanism, driving the conversion part 11 to rotate, so that the conversion mechanism controls one of the normal power supply and the backup power supply to be powered off, and controls the other one to be powered on.

[0045] The automatic switching switch of this embodiment does not need to separately set an "intermediate position" for changing the moving direction of the push rod 3 in the first guide groove 21. Only two release positions need to be set in the first guide groove 21. The push rod 3 is driven by the electromagnetic mechanism to move between the two release positions. During the movement of the push rod 3 to the release position on the other side, the push rod 3 does not need to change the moving direction. It has the characteristics of simple structure, compact structure and small size. Moreover, after crossing the zero position, the push rod 3 is driven by the spring 6 to quickly move away from the zero position, which can drive the moving contact to quickly open and close the switch, thereby accelerating the arc extinction speed during the switching process.

[0046] like Figure 4 As shown, another improvement of the present embodiment is that the push rod 3 is connected to the conversion mechanism through the connecting rod 7, and the push rod 3 drives the rotating member 13 to rotate through the connecting rod 7, and the rotating member 13 drives the conversion member 11 to rotate, which can increase the rotation angle of the conversion member 11, so that when the moving contact is driven by the conversion member 11 to move away from the static contact of the common power supply and the moving contact of the standby power supply, the moving contact can rotate to a position with a large angle, thereby increasing the opening distance of the contact system and improving the arc extinguishing ability and reliability.

[0047] When the electric operating device controls the automatic transfer switch, in the process described above, the electric operating device drives the rotating member 13 to rotate through the push rod 3 and the connecting rod 7, and drives the conversion member 11 to rotate to realize the switching of the normal power supply and the backup power supply. When the automatic transfer switch is manually controlled, the operating handle 131 of the rotating member 13 is operated to drive the rotating member 13 to rotate, and the rotating member 13 drives the push rod 3 to move from the release position to the zero position and cross the zero position through the connecting rod 7, and then the spring 6 releases energy to drive the push rod 3 to accelerate to another release position, and drives the rotating member 13 to continue to rotate through the connecting rod 7, and drives the conversion member 11 to rotate to realize the switching of the normal power supply and the backup power supply.

[0048] Of course, as other embodiments, when the automatic transfer switch is manually controlled, the rotating member 13 may be driven to accelerate rotation without the aid of the spring 6, and the operating handle 131 of the rotating member 13 may be operated to drive the rotating member 13 to directly drive the conversion member 11 to switch the normal power supply and the standby power supply, and at the same time, the rotating member 13 drives the push rod 3 to move from the release position to the zero position and pass the zero position through the connecting rod 7, and move to another release position, synchronously switching the position of the push rod 3 of the electric operating device. However, the closing speed is slow in this way, and electric sparks are likely to occur.

[0049] like Figure 7 As shown, the connecting rod 7 is provided with a mounting hole 70 rotatably mounted on the housing, and the housing is provided with a mounting column 700. The mounting hole 70 is sleeved on the mounting column 700 as the rotation center of the connecting rod 7. The connecting rod 7 includes a first lever 71 and a second lever 72 arranged on the same straight line, and the first lever 71 and the second lever 72 are relatively arranged on both sides of the mounting hole 70. The first lever 71 and the second lever 72 are respectively used to connect the push rod 3 and the rotating member 13. The push rod 3 drives the second lever 72 to rotate through the first lever 71, so that the second lever 72 drives the rotating member 13 to rotate. The length of the first lever 71 is The length of the second lever 72 is smaller than that of the first lever 71. When the first lever 71 drives the second lever 72 to rotate, when the second lever 72 rotates at the same angle, the length of the arc of the rotation of the end of the second lever 72 is greater than that of the first lever 71. The second lever 72 is used to drive the rotating member 13 to rotate. The rotating member 13 drives the conversion member 11 to rotate through the transmission member 12, so that the rotating member 13, the transmission member 12 and the conversion member 11 can be rotated at a larger angle. The conversion member 11 can also drive the moving contact to rotate at a larger angle. When the moving contact is away from the moving contacts of the normal power supply and the backup power supply, it can also move a longer distance, thereby increasing the opening distance of the contact system and improving the arc extinguishing capability and reliability.

[0050] Furthermore, the first lever 71 and the second lever 72 are respectively provided with a first slide groove 73 and a second slide groove 74, and the length directions of the first slide groove 73 and the second slide groove 74 are respectively arranged in parallel with the length direction of the connecting rod 7, the length of the first slide groove 73 is smaller than the length of the second slide groove 74, and the distance from the first slide groove 73 to the mounting hole 70 is smaller than the distance from the second slide groove 74 to the mounting hole 70, the first slide groove 73 is sleeved on the push rod 3, the push rod 3 can push the first slide groove 73 to drive the connecting rod 7 to rotate, and the push rod 3 can slide along the length direction of the first slide groove 73, and the rotating part 13 of the conversion mechanism is provided with a transmission rod 111 for being inserted into the second slide groove 74, and the transmission rod 111 can slide along the length direction of the second slide groove 74.

[0051] Further, the first lever 71 is provided with a support portion 75, the width of the support portion 75 is greater than the width of the first lever 71, the support portion 75 is provided with an avoidance hole 76, at least one guide rod 4 is inserted into the avoidance hole 76, and the avoidance hole 76 is used to avoid the guide rod 4 to prevent the guide rod 4 from colliding with the connecting rod 7. Of course, the avoidance hole 76 may not be provided, and the distance between the connecting rod 7 and the guide rod 4 may be increased, so that the guide rod 4 cannot contact the connecting rod 7, which all belongs to the protection scope of the present utility model.

[0052] like Figure 1 As shown, the electromagnetic mechanism of this embodiment includes two electromagnetic coils 81 arranged opposite to each other, and a driving rod 82 is provided between the two electromagnetic coils 81. The driving rod 82 is rotatably connected to the push rod 3. The two electromagnetic coils 81 are respectively used for switching from the normal power supply to the backup power supply, and from the backup power supply to the normal power supply. The two electromagnetic coils 81 are respectively used to drive the driving rod 82 to move in opposite directions, so that the driving rod 82 drives the push rod 3 to move along the first guide groove 21 to two release positions.

[0053] like Figure 8As shown, the driving rod 82 of this embodiment includes two iron core parts 83 arranged in one piece and a driving part 84 located between the two iron core parts 83, the driving part 84 is provided with a driving hole 80 for inserting the push rod 3, so that the driving part 84 is rotatably connected with the push rod 3, the two iron core parts 83 are respectively used to be inserted into the two electromagnetic coils 81, so that the electromagnetic coils 81 attract the iron core parts 83 to drive the driving part 84 to move, and the driving part 84 is provided with two opposite avoidance surfaces 85 in the radial direction, and the distance between the two avoidance surfaces 85 is less than the diameter of the driving part 84, while ensuring that the size of the driving part 84 meets the attraction requirements of the electromagnetic coils 81, the volume of the driving part 84 can be reduced. It can be understood that iron cores can also be respectively arranged in the two electromagnetic coils 81, and the two ends of the driving rod 82 are respectively connected to the iron cores, and the two electromagnetic coils 81 drive the iron cores to move respectively, and then drive the driving rod 82 to move through the iron cores. In addition, the driving rod 82 can also be driven to move back and forth by a motor, which all belongs to the protection scope of the utility model.

[0054] like Figure 3 As shown, in this embodiment, two guide rods 4 and two push rods 5 are provided, and the spring 6 is a tension spring, and the spring 6 is connected between the two guide rods 4. The guide plate 2 is provided with two second guide grooves 22 for inserting the guide rods 4 respectively, and the two second guide grooves 22 are arranged on both sides of the first guide groove 21 relatively. The push rod 3 is rotatably connected with the two guide rods 4 respectively through the two push rods 5. When the push rod 3 moves to the zero position, the two guide rods 4 are pushed by the two push rods 5 respectively, so that the two guide rods 4 move away from each other along the second guide groove 22, and the spring 6 is stretched during the movement to store energy for the spring 6. When the push rod 3 passes the zero position, the spring 6 is used to pull the two guides to move closer to each other along the second guide groove 22, and the push rod 3 is pushed by the two push rods 5 respectively, so that the push rod 3 quickly moves away from the zero position. In this embodiment, two guide rods 4 are provided, and the two ends of the spring 6 are respectively connected to the guide rods 4. It is also possible to fix one end of the spring 6 on the guide plate 2, and only one end is connected to the guide rod 4, and only one second guide groove 22 is provided accordingly. In addition, the spring 6 may also be a compression spring or other springs 6, all of which fall within the protection scope of the present utility model.

[0055] Furthermore, the two push rods 5 are relatively arranged on both sides of the guide plate 2, and the ends of the two push rods 5 away from the push rod 3 are symmetrically arranged on both sides of the first guide groove 21. The two push rods 5 respectively apply to the push rod 3 components of force parallel to the first guide groove 21 that are equal in magnitude and in the same direction, and the two push rods 5 respectively apply to the push rod 3 components of force perpendicular to the first guide groove 21 that are equal in magnitude but opposite in direction, so that the components of force perpendicular to the first guide groove 21 offset each other, thereby reducing the force between the push rod 3 and the first guide groove 21.

[0056] Further, two springs 6 are provided, the two springs 6 are arranged on both sides of the guide plate 2, and the two springs 6 are respectively connected between the two ends of the two guide rods 4, and the two springs 6 can balance the force on the guide rods 4. Of course, one spring 6 can also be provided, for example, one spring 6 is connected between the middle parts of the two guide rods 4.

[0057] Further, the first guide groove 21 is arranged in a straight line, and the second guide groove 22 is arranged in a straight line, and the center line of the second guide groove 22 is perpendicular to the center line of the first guide groove 21, and the center line of the first guide groove 21 corresponds to the zero point position. In this embodiment, two second guide grooves 22 are provided, and the center lines of the two second guide grooves 22 are located in the same straight line and are respectively arranged perpendicular to the center line of the first guide groove 21, and the intersection position of the center line of the second guide groove 22 and the center line of the first guide groove 21 is the zero point position, and the two ends of the first guide groove 21 are respectively the release positions. As other embodiments, the first guide groove 21 and the second guide groove 22 can also adopt other shapes.

[0058] like Figure 1-3 As shown in FIG. 9 , the shell includes a partition 90, the conversion member 11 and the transmission member 12 are arranged on one side of the partition 90, the operating handle 131, the rotating member 13, the connecting rod 7, the electromagnetic mechanism, the guide plate 2, the push rod 3, the guide rod 4, the push rod 5 and the spring 6 are arranged on the side of the partition 90 away from the conversion member 11 and the transmission member 12, and a support column for connecting the guide plate 2 is provided on the partition 90 of the shell, and the support column enables the guide plate 2 to be spaced apart from the partition 90, and a space for accommodating the connecting rod 7, the push rod 5, the guide rod 4 and the spring 6 is provided between the guide plate 2 and the partition 90.

[0059] The rotating member 13 of this embodiment is rotatably mounted on the rotating hole of the partition 90, and is fixedly connected to the transmission member 12 through the rotating hole to drive the transmission member 12 to rotate. An operating handle 131 and a transmission rod 111 are respectively provided on both sides of the rotation center of the rotating member 13. The operating handle 131 extends outside the housing for manual operation, and the transmission rod 111 is connected to the push rod 3 of the electric operation device through the connecting rod 7. In this embodiment, the rotating member 13 is plug-in-matched with the transmission member 12, the transmission member 12 is an incomplete gear, and the conversion member 11 is a gear meshed with the transmission member 12. The conversion member 11 can be provided with a connection structure not shown in the figure, which is used to directly drive the moving contact to rotate, or the conversion member 11 can also indirectly drive the moving contact to rotate through other parts, for example, a gear meshed with the conversion member 11 is provided, and the moving contact is driven to rotate through the gear, or it can be realized by other existing technologies such as a connecting rod. It can be understood that the conversion mechanism can be implemented in a variety of ways, for example, the transmission member 12 and the conversion member 11 can be driven by connecting rods instead of gears, or by driving surfaces on relatively arranged protrusions. In addition, the transmission member 12 can be integrally formed with the rotating member 13, or the transmission member 12 may not be provided, and the rotating member 13 may directly drive the conversion member 11; or, the operating handle 131 may not be provided, and only the electric operating device drives the rotating member 13 to rotate; or, the electric operating device directly drives the conversion member 11, and the transmission rod 111 is provided on the conversion member 11, and the transmission member 12 and the rotating member 13 are not provided, which all belong to the protection scope of the present utility model.

[0060] Further, if Figure 1-3 As shown in FIG. 9 , the support column includes a first support column 91 and a second support column 92. The first support column 91 and the second support column 92 are relatively arranged on both sides of the driving rod 82. The guide plate 2 is connected to the first support column 91 and the second support column 92 through a first screw 201 and a second screw 202, respectively.

[0061] Furthermore, two first support columns 91 and two second support columns 92 are provided, the two first support columns 91 are located between the two electromagnetic coils 81, the two second support columns 92 are respectively located on the sides of the two electromagnetic coils 81 close to the operating handle 131, and the two second support columns 92 are relatively arranged on both sides of the connecting rod 7, the distance between the two second support columns 92 is greater than the distance between the two first support columns 91, the guide plate 2 is located between the two electromagnetic coils 81, the guide plate 2 is provided with two connecting plates 203, the two connecting plates 203 respectively extend to the positions of the two second support columns 92, so that the two connecting plates 203 are respectively connected to the corresponding second support columns 92 by the second screws 202, the second support columns 92 can avoid interference with the connecting rod 7 and the operating handle 131, and prevent collision when the connecting rod 7 and the operating handle 131 rotate.

[0062] like Figure 10-12The action process shown, Fig.10 The middle push rod 3 is in the left release position, the right electromagnetic coil 81 is energized and attracts the driving rod 82 to move rightward, driving the push rod 3 to move rightward along the first guide groove 21 to Fig.11 The zero point position is shown. During the movement, the push rod 3 pushes the two guide rods 4 on the upper and lower sides respectively through the two push rods 5, so that the two guide rods 4 on the upper and lower sides move away from each other along the second guide groove 22. When the two guide rods 4 move away from each other, the spring 6 is stretched and energy is stored for the spring 6, and at the same time, the two push rods 5 are rotated toward the center line of the spring 6. Only the push rod 5 connected to the upper guide rod 4 is shown in the figure, and the push rod 5 connected to the lower guide rod 4 is blocked by the guide plate 2.

[0063] Fig.11 The middle push rod 3 is at the zero position. When the push rod 3 continues to move to the right under the drive rod 82 and passes the zero position, the spring 6 releases energy. The direction of the force of the spring 6 along the first guide groove 21 is the same as the moving direction of the push rod 3. The spring 6 drives the two guide rods 4 to move closer to each other along the second guide groove 22. When the two guide rods 4 are close, they push the push rod 3 through the push rod 5, so that the push rod 3 continues to move to the right. Under the action of the elastic force of the spring 6, the push rod 3 will quickly move away from the zero position and move to Fig.12 Position, the push rod 3 drives the rotating member 13 to rotate through the connecting rod 7 in the process of moving away from the zero position, and the rotating member 13 drives the conversion member to rotate to realize the conversion between the normal power supply and the backup power supply. When the normal power supply and the backup power supply need to be converted again, the left electromagnetic coil 81 is energized and attracts the driving rod 82 to move to the left, and the process is the same as above.

[0064] The manual operation process of this embodiment is to push the operating handle 131 to drive the rotating member 13 to rotate, so that the rotating member 13 drives the push rod 3 to move from the release position to the zero position and pass the zero position through the connecting rod 7, which is equivalent to replacing the electromagnetic coil 81 to drive the push rod 3 to rotate. Fig.10 Move to Fig.11 After the push rod 3 passes the zero position, the operating handle 131 is released, and the spring 6 drives the push rod 3 to quickly move away from the zero position and move to another release position, which is similar to the above Figure 11 to Figure 12 The action process is the same as that of , and will not be repeated here.

[0065] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate directions or positional relationships based on directions or positional relationships shown in the drawings, or directions or positional relationships that are usually placed when in use, and are only for the convenience of description, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish descriptions, and cannot be understood as indicating relative importance.

[0066] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. An automatic transfer switch, comprising a transfer mechanism and an electric operating device, wherein the electric operating device is used to drive the transfer mechanism to realize the conversion between the normal power supply and the standby power supply. Features: The electric operation device comprises an electromagnetic mechanism, a guide plate (2), a push rod (3), a guide rod (4) and a push rod (5), wherein the guide rod (4) is connected to a spring (6), and the push rod (5) is rotatably connected to the push rod (3) and the guide rod (4) respectively, and the guide plate (2) is provided with a first guide groove (21) and a second guide groove (22) for inserting the push rod (3) and the guide rod (4) respectively, and the first guide groove (21) is provided with a zero point position and two release positions arranged relatively on both sides of the zero point position, and when the push rod (3) moves to one of the release positions, the push rod (3) drives the conversion mechanism to control the power supply of the normal power supply and disconnect the backup power supply, and when the push rod (3) moves to the other release position, the push rod (3) drives the conversion mechanism to control the power supply of the backup power supply and disconnect the normal power supply; The electromagnetic mechanism is used to drive the push rod (3) to move from the two release positions to the zero position and pass the zero position. When the push rod (3) moves to the zero position, it drives the push rod (5) to push the guide rod (4), so that the guide rod (4) moves along the second guide groove (22) and stores energy for the spring (6). When the push rod (3) passes the zero position, the spring (6) releases energy, so that the spring (6) drives the guide rod (4) to move along the second sliding position, and pushes the push rod (3) away from the zero position and moves to another release position through the push rod (5).

2. The automatic transfer switch according to claim 1, Features: The center line of the spring (6) is set corresponding to the zero point position. When the push rod (3) is located at the two release positions respectively, the center line of the push rod (5) is relatively set on both sides of the center line of the spring (6). The electromagnetic mechanism is used to drive the push rod (3) to move along the first guide groove (21) close to the center line of the spring (6). The direction of the component force of the spring (6) along the first guide groove (21) is opposite to the moving direction of the push rod (3). The push rod (3) pushes the guide rod (4) to move along the second guide groove (22) through the push rod (5) and stores energy for the spring (6), while driving the The push rod (5) rotates around the guide rod (4). When the center line of the push rod (5) rotates to the other side opposite to the center line of the spring (6), the push rod (3) passes the zero position and releases the spring (6). The component direction of the spring (6) along the first guide groove (21) is the same as the moving direction of the push rod (3). The spring (6) drives the guide rod (4) to move along the second slide groove (74). The guide rod (4) pushes the push rod (3) through the push rod (5), so that the push rod (3) moves quickly away from the zero position along the first guide groove (21), and the push rod (3) drives the conversion mechanism to rotate.

3. The automatic transfer switch according to claim 1, Features: The first guide groove (21) is arranged in a straight line, the second guide groove (22) is arranged in a straight line, the center line of the second guide groove (22) is perpendicular to the center line of the first guide groove (21), and the center line of the first guide groove (21) corresponds to the zero point position.

4. The automatic transfer switch according to claim 1, Features: The push rod (3) is connected to the conversion mechanism via a connecting rod (7).

5. The automatic transfer switch according to claim 4, Features: A connecting rod (7) is provided, the connecting rod (7) comprising a first lever (71) and a second lever (72) arranged relatively on both sides of the rotation center of the connecting rod (7), the first lever (71) and the second lever (72) are respectively used to connect the push rod (3) and the conversion mechanism, the push rod (3) drives the second lever (72) to rotate through the first lever (71), so that the second lever (72) drives the conversion mechanism to rotate.

6. The automatic transfer switch according to claim 5, Features: The length of the first lever (71) is smaller than the length of the second lever (72).

7. The automatic transfer switch according to claim 5, Features: The first lever (71) and the second lever (72) are respectively provided with a first slide groove (73) and a second slide groove (74); the length directions of the first slide groove (73) and the second slide groove (74) are respectively arranged parallel to the length direction of the connecting rod (7); the first slide groove (73) is sleeved on the push rod (3); the push rod (3) can push the first slide groove (73) to drive the connecting rod (7) to rotate, and the push rod (3) can slide along the length direction of the first slide groove (73); the conversion mechanism is provided with a transmission rod (111) for being inserted into the second slide groove (74); the transmission rod (111) can slide along the second slide groove (74).

8. The automatic transfer switch according to claim 5, Features: The first lever (71) is provided with a support portion (75), the width of the support portion (75) is greater than the width of the first lever (71), the support portion (75) is provided with an avoidance hole (76), at least one guide rod (4) is inserted into the avoidance hole (76), and the avoidance hole (76) is used to avoid the guide rod (4).

9. The automatic transfer switch according to claim 1, Features: The conversion mechanism comprises a conversion member (11), a transmission member (12) and a rotating member (13); the push rod (3) of the electric operating device is used to drive the rotating member (13) to rotate; the rotating member (13) drives the conversion member (11) to rotate through the transmission member (12); the conversion member (11) is used to drive the moving contact to rotate so that the moving contact contacts the static contact of the normal power supply or the static contact of the standby power supply.

10. The automatic transfer switch according to claim 9, Features: The rotating member (13) is provided with an operating handle (131) extending outside the housing for manual operation. The operating handle (131) is used to drive the rotating member (13) to rotate. The rotating member (13) drives the push rod (3) to move from a release position to a zero position and beyond the zero position through a connecting rod (7).

11. The automatic transfer switch according to claim 1, Features: The electromagnetic mechanism comprises two electromagnetic coils (81) arranged opposite to each other, a driving rod (82) is arranged between the two electromagnetic coils (81), the driving rod (82) is rotatably connected to the push rod (3), and the two electromagnetic coils (81) are respectively used to drive the driving rod (82) to move in opposite directions, so that the driving rod (82) drives the push rod (3) to move along the first guide groove (21) to two release positions.

12. The automatic transfer switch according to claim 11, Features: The driving rod (82) includes two integrally arranged iron core parts (83) and a driving part (84) located between the two iron core parts (83). The driving part (84) is provided with a driving hole (80) for inserting the push rod (3), so that the driving part (84) is rotatably connected to the push rod (3). The two iron core parts (83) are respectively used to be inserted into the two electromagnetic coils (81).

13. The automatic transfer switch according to claim 12, Features: The driving portion (84) is provided with two opposite avoidance surfaces (85) in the radial direction, and the distance between the two avoidance surfaces (85) is smaller than the diameter of the driving portion (84).

14. The automatic transfer switch according to claim 1, Features: Two guide rods (4) and two push rods (5) are provided, the spring (6) is a tension spring, the spring (6) is connected between the two guide rods (4), the guide plate (2) is provided with two second guide grooves (22) for inserting the guide rods (4) respectively, the two second guide grooves (22) are arranged on both sides of the first guide groove (21) relatively, the push rod (3) is rotatably connected with the two guide rods (4) through the two push rods (5), when the push rod (3) moves to the zero position, the two push rods (5) respectively push the two guide rods (4) so ​​that the two guide rods (4) move away from each other along the second guide grooves (22), and the spring (6) is stretched during the movement to store energy for the spring (6), when the push rod (3) passes the zero position, the spring (6) is used to pull the two guides to move closer to each other along the second guide grooves (22), and the two push rods (5) respectively push the push rod (3) so that the push rod (3) quickly moves away from the zero position.

15. The automatic transfer switch according to claim 14, Features: The two push rods (5) are arranged on both sides of the guide plate (2) in a relative manner, and the ends of the two push rods (5) away from the push rod (3) are symmetrically arranged on both sides of the first guide groove (21). The two push rods (5) respectively apply to the push rod (3) components of force parallel to the first guide groove (21) of equal magnitude and in the same direction, and the two push rods (5) respectively apply to the push rod (3) components of force perpendicular to the first guide groove (21) of equal magnitude but in opposite directions.

16. The automatic transfer switch according to claim 14, Features: Two springs (6) are provided, the two springs (6) are arranged oppositely on both sides of the guide plate (2), and the two springs (6) are respectively connected between the two ends of the two guide rods (4).

17. The automatic transfer switch according to claim 14, Features: The center lines of the two second guide grooves (22) are located on the same straight line and are respectively arranged perpendicular to the center line of the first guide groove (21); the intersection position of the center line of the second guide groove (22) and the center line of the first guide groove (21) is the zero point position, and the two ends of the first guide groove (21) are respectively release positions.

18. The automatic transfer switch according to claim 1, Features: The invention comprises a shell provided with a partition (90), wherein the partition (90) is provided with a support column for connecting a guide plate (2), wherein the support column enables the guide plate (2) and the partition (90) to be spaced apart, and a space for accommodating a connecting rod (7), a push rod (5), a guide rod (4) and a spring (6) is provided between the guide plate (2) and the partition (90).

19. The automatic transfer switch according to claim 18, Features: The support column comprises a first support column (91) and a second support column (92), the first support column (91) and the second support column (92) are arranged on both sides of the driving rod (82) relatively, and the guide plate (2) is connected to the first support column (91) and the second support column (92) respectively through a first screw (201) and a second screw (202).

20. The automatic transfer switch according to claim 19, Features: Two first support columns (91) and two second support columns (92) are provided, the two first support columns (91) are located between the two electromagnetic coils (81), the two second support columns (92) are respectively located on the sides of the two electromagnetic coils (81) close to the operating handle (131), and the two second support columns (92) are relatively arranged on both sides of the connecting rod (7), and the distance between the two second support columns (92) is greater than the distance between the two first support columns (91).

21. The automatic transfer switch according to claim 9, Features: The invention comprises a shell provided with a partition (90), wherein the push rod (3) is connected to a transmission rod (111) on a rotating member (13) through a connecting rod (7), the conversion member (11) and the transmission member (12) are arranged on one side of the partition (90), and the rotating member (13), the electromagnetic mechanism, the guide plate (2), the push rod (3), the guide rod (4), the push rod (5) and the spring (6) are arranged on the other side of the partition (90).

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