CN210091932U - Automatic change-over switch electric appliance - Google Patents

Abstract

An automatic transfer switching device comprises an actuating mechanism, a control mechanism, a main shaft and a transmission mechanism, wherein the main shaft is connected between the actuating mechanism and the control mechanism; the at least three groups of positioning slot groups are respectively a common closing positioning slot group, a standby closing positioning slot group and a disconnection positioning slot group which correspond to a common side power supply closing position, a standby side power supply closing position and a disconnection position of the automatic transfer switching device; each group of positioning groove group comprises two positioning grooves symmetrically arranged on two sides of the rotary table respectively, the two positioning mechanisms move in opposite directions along a straight line to be close to and far away from the rotary table to be matched with the two positioning grooves of the positioning groove group, extension lines of the moving directions of the two positioning mechanisms penetrate through the central line of the main shaft, and damping mechanisms are arranged in the moving directions of the two positioning mechanisms.

Description

Automatic change-over switch electric appliance

Technical Field

The invention relates to the field of low-voltage electric appliances, in particular to an automatic transfer switching device.

Background

In the current market, the conversion devices of the PC-level automatic transfer switching equipment are various, and have electromagnetic attraction type and motor driving type. For a PC three-section type automatic transfer switching device (namely, a common position, a standby position and a double-division power-off position), a two-layer double-cavity structure is mostly adopted, namely, a common power supply contact system and a standby power supply contact system are positioned in two independent structures, namely, the common power supply contact system is arranged in one cavity, the standby power supply contact system is arranged in the other cavity, and the wire outlet ends of the two contact systems are connected together. The double-cavity structure has the advantages that the normal power supply and the standby power supply are relatively independent and are safer.

With the continuous development of the PC-level automatic transfer switching apparatus, in order to reduce the cost, the three-level automatic transfer switching apparatus in the market begins to appear a product adopting a single cavity and a single main shaft, that is, a common power contact and a standby power contact system are located in the same cavity, and a mechanism drives the single main shaft to rotate and has a double-division stop position function. Two-section type single-cavity products in the market gradually appear due to small difficulty, and only two electromagnetic coils are used for attracting to realize switching between a first power supply and a second power supply. The three-section type single-cavity product is less, and the double-cavity product is still the mainstream product at present. However, the mainstream PC-grade product in the existing market is a three-stage structure, and most of the PC-grade products adopt two independent cavity structures with two independent contact systems, so that the structure of the PC-grade product is relatively complex and the cost is high.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides an automatic transfer switching device with simple structure and high reliability.

In order to achieve the purpose, the invention adopts the following technical scheme:

an automatic transfer switching device comprises an actuating mechanism, a control mechanism, a main shaft and a transmission mechanism, wherein the main shaft is connected between the actuating mechanism and the control mechanism; the at least three groups of positioning slot groups comprise a common closing positioning slot group, a standby closing positioning slot group and a disconnection positioning slot group which respectively correspond to a common side power supply closing position, a standby side power supply closing position and a disconnection position of the automatic transfer switching device; each group of positioning groove group comprises two positioning grooves symmetrically arranged on two sides of the rotary table respectively, the two positioning mechanisms move in opposite directions along a straight line to be close to and far away from the rotary table to be matched with the two positioning grooves of the positioning groove group, extension lines of the moving directions of the two positioning mechanisms penetrate through the central line of the main shaft, and damping mechanisms are arranged in the moving directions of the two positioning mechanisms.

Preferably, the positioning mechanism comprises a fixed shaft and a sliding shaft, a damping mechanism is arranged between the fixed shaft and the sliding shaft, and two ends of the damping mechanism are respectively connected with the fixed shaft and the sliding shaft.

Preferably, both sides of the turntable are respectively provided with a side plate, both ends of the fixed shaft are respectively fixedly connected with the side plates, one side of the side plate, which is close to the turntable, of the fixed shaft is provided with a sliding groove, the length direction of the sliding groove is the same as the direction of a connecting line from the fixed shaft to the main shaft, and both ends of the sliding shaft are respectively in sliding fit with the side plates.

Preferably, the damping mechanism comprises a guide rod and a spring sleeved outside the guide rod, one end of the guide rod is connected with the sliding shaft, the other end of the guide rod is provided with a guide rod groove sleeved in the middle of the fixed shaft, and the length directions of the guide rod and the guide rod groove are the same as the length direction of the sliding groove.

Preferably, a bracket is arranged at one end of the guide rod close to the sliding shaft, one side of the bracket is in sliding fit with the circumference of the sliding shaft, and one end of the spring close to the sliding shaft abuts against the other side of the bracket.

Preferably, the support includes first mounting panel and the second mounting panel of perpendicular setting, and one side of first mounting panel and the tip cooperation of spring, the opposite side of first mounting panel and the one end fixed connection of second mounting panel, the other end of second mounting panel be equipped with the circumference sliding fit's of sliding shaft one side slip recess.

Preferably, the support is shape, and the support includes two support curb plates that set up relatively to and connect the support bottom plate between two support curb plate one end, support bottom plate and guide arm fixed connection are equipped with the support shaft hole of cover on the sliding shaft respectively on two support curb plates, and the sliding shaft sets up the inboard at two support curb plates, and the both ends of sliding shaft pass two support shaft holes respectively and stretch out behind the support with insert the sliding tray of both sides in, the carousel stretches to between two support curb plates with the middle part cooperation of sliding shaft.

Preferably, the middle part of sliding shaft is equipped with the axle collar, and the diameter of axle collar is greater than the sliding shaft, and the axle collar is located and cooperates with the side of carousel between two support curb plates.

Preferably, the guide rod comprises a first guide rod and a second guide rod, one end of the first guide rod is connected with the bracket, the other end of the first guide rod is provided with a guide rod groove sleeved on the second guide rod, one end of the second guide rod is connected with the fixed shaft, and the other end of the second guide rod is inserted into the guide rod groove in a sliding fit manner.

Preferably, the two sides of the second guide rod are respectively provided with a guide rib, the guide rod groove of the first guide rod is in a cross shape, and two opposite side walls of the guide rod groove are respectively provided with a guide groove in sliding fit with the guide ribs.

The automatic transfer switching device has the advantages that the three positioning groove groups respectively corresponding to the common-side power supply switching-on position, the standby-side power supply switching-on position and the disconnection position are arranged around the rotary table, and the two linear movement positioning mechanisms move towards and away from the rotary table, so that the two positioning mechanisms can be respectively clamped into the positioning groove groups around the rotary table from two sides to limit the main shaft.

In addition, through the support curb plate cover with two be equipped with support shaft holes at the both ends of sliding shaft, not only have the higher and more smooth and easy characteristics of sliding shaft rotation of reliability, the carousel stretches moreover between two support curb plates with the middle part cooperation of sliding shaft, make two support curb plates can also play spacing to inboard carousel cooperation, the outside of two support curb plates simultaneously can also be spacing with the curb plate cooperation of both sides.

Drawings

FIG. 1 is a schematic structural diagram of a transmission mechanism according to an embodiment of the present invention;

FIG. 2 is a schematic view of the damping mechanism and the side plate according to the embodiment of the present invention;

FIG. 3 is a first embodiment of a bracket according to an embodiment of the present invention;

FIG. 4 is a second embodiment of a bracket according to an embodiment of the present invention;

fig. 5 is an exploded view of the damping mechanism of fig. 4 according to an embodiment of the present invention;

FIG. 6 is a schematic view of the spring seat and guide rod of the embodiment of the present invention;

fig. 7 is a front view of the embodiment of the present invention fig. 6;

fig. 8 is a schematic structural view of a side plate according to an embodiment of the present invention;

fig. 9 is a schematic structural view of the other side of the side plate in fig. 8 according to the embodiment of the present invention.

Fig. 10 is a schematic structural diagram of an automatic transfer switching apparatus according to an embodiment of the present invention;

figure 11 is a schematic structural view of a mechanism and contact system according to an embodiment of the present invention;

FIG. 12 is a schematic view of a positioning mechanism and guide rods according to an embodiment of the present invention;

fig. 13 is a schematic structural view of a bracket according to an embodiment of the present invention.

Detailed Description

The following describes the embodiments of the automatic transfer switching apparatus according to the present invention with reference to the embodiments shown in fig. 1 to 13. The automatic transfer switching apparatus of the present invention is not limited to the description of the following embodiments.

The utility model discloses automatic change-over switch electrical apparatus includes actuating mechanism, control mechanism, main shaft 1 of connection between actuating mechanism and control mechanism, and be located between actuating mechanism and the control mechanism with 1 complex drive mechanism of main shaft, actuating mechanism includes the moving contact of being connected with main shaft 1, be equipped with the static contact that corresponds side power commonly used and reserve side power respectively in the both sides of moving contact, main shaft 1 can drive the static contact switch-on of moving contact and one side and incline power commonly used (power commonly used closing position) or reserve side power (reserve power closing position), the static contact that also can drive moving contact and both sides separately with incline power commonly used and reserve side power disconnection (open position).

As shown in fig. 1-2, the utility model discloses an automatic change-over switch electrical apparatus's drive mechanism is including the cover carousel 2 on main shaft 1 to and the symmetry sets up two positioning mechanism 3 in carousel 2 both sides, and two positioning mechanism 3 are close to and keep away from carousel 2 along the straight line removes in opposite directions, and the extension line of two positioning mechanism 3 moving direction all passes the central line of main shaft 1, be equipped with the multiunit around carousel 2 respectively with two positioning mechanism 3 complex positioning groove groups 21.

As shown in fig. 3-4, at least three groups of centrosymmetric positioning slot groups 21 are arranged around the turntable 2, each group of positioning slot groups 21 respectively includes two positioning slots symmetrically arranged at two sides of the turntable 2, the two positioning slots of each group of positioning slot groups 21 are respectively matched with the two positioning mechanisms 3, the three groups of positioning slot groups 21 respectively correspond to a common closing positioning slot group, a standby closing positioning slot group and a disconnecting positioning slot group at a common side power supply closing position, a standby side power supply closing position and a disconnecting position, when the two positioning mechanisms 3 are simultaneously clamped into the two common closing positioning slot groups at two sides, the main shaft 1 drives the moving contact to contact with the common side fixed contact, when the two positioning mechanisms 3 are simultaneously clamped into the two standby closing positioning slot groups at two sides, the main shaft 1 drives the moving contact to contact with the standby side fixed contact, and when the two positioning mechanisms 3 are simultaneously clamped into the two disconnecting positioning slot groups at two, the main shaft 1 drives the moving contact to be separated from the common side static contact and the standby side static contact. The utility model discloses an automatic transfer switch electrical apparatus, through corresponding respectively in the side power switching on position commonly used, three group's positioning groove group 21 centrosymmetry setting of reserve side power switching on position and disconnection position are around carousel 2, two rectilinear movement positioning mechanism 3 move in opposite directions are close to and keep away from carousel 2 simultaneously, it is spacing with main shaft 1 in 2 all around positioning groove group 21 of carousel is gone into respectively to make two positioning mechanism 3 cards respectively from both sides, simple structure not only has, small, convenient assembling and characteristics with low costs, and two positioning mechanism 3 need not rotate and install in one side of carousel 2, the structure is simpler, and make two positioning mechanism 3 do not act on same straight line at the effort on carousel 2 respectively, the accuracy to carousel 2 location is higher, rectilinear movement's speed is also faster.

As shown in fig. 3, the positioning mechanism 3 includes a fixed shaft 31 and a sliding shaft 32, a damping mechanism 4 is disposed between the fixed shaft 31 and the sliding shaft 32, two ends of the damping mechanism 4 are respectively connected to the fixed shaft 31 and the sliding shaft 32, the damping mechanism 4 is compressed by the sliding shaft 32, and the damping mechanism 4 drives the sliding shaft 32 to move towards the positioning mechanism 3 when releasing energy, which is characterized by simple structure.

The two sides of the turntable 2 are respectively provided with a side plate 30, two ends of the fixed shaft 31 are respectively fixedly connected with the side plates 30, one side of the fixed shaft 31 close to the turntable 2 of the side plates 30 is provided with a sliding groove 33, the length direction of the sliding groove 33 is the same as the connecting line direction of the fixed shaft 31 to the main shaft 1, and two ends of the sliding shaft 32 are respectively in sliding fit with the side plates 30. When the turntable 2 rotates, the sliding shaft 32 can be pushed to move along the length direction of the sliding groove 33, the damping mechanism 4 is compressed through the sliding shaft 32, when the turntable 2 rotates to the highest point, the damping mechanism 4 reaches the maximum compression amount, after the turntable 2 rotates to the other side of the highest point, the damping mechanism 4 releases energy and pushes the sliding shaft 32 to push the groove wall of the positioning groove group 21, the positioning groove group 21 drives the turntable 2 to rotate to a specified position to realize the positioning effect, and the turntable 2 is prevented from rotating at an overlarge angle due to inertia and other reasons.

As shown in fig. 3, which shows a first embodiment of the guide rod 41, the guide rod 41 is in a plate shape, the damping mechanism 4 includes the guide rod 41 and a spring 42 sleeved outside the guide rod 41, one end of the guide rod 41 is connected with the sliding shaft 32, the other end of the guide rod 41 is provided with a sliding chute 43 sleeved in the middle of the fixed shaft 31, and the length directions of the guide rod 41 and the sliding chute 43 are the same as the length direction of the sliding chute 33. When the sliding shaft 32 moves along the sliding groove 33 to compress the spring 42, the sliding shaft 32 drives the guide rod 41 to move along the sliding groove 33, and the spring 42 is guided by the guide rod 41, so that the structure of the damping mechanism 4 is simplified, and the problem of clamping stagnation is avoided. Of course, the damping mechanism 4 may not employ the spring 42 as the energy storage element, and the damping mechanism 4 may also employ other elastic components, for example, an elastic element in a wave shape and does not need to provide the guide rod 41, which all belong to the protection scope of the embodiment of the present invention.

Further, one end of the guide rod 41 close to the sliding shaft 32 is provided with a bracket 5, one side of the bracket 5 is in sliding fit with the circumference of the sliding shaft 32, and one end of the spring 42 close to the sliding shaft 32 abuts against the other side of the bracket 5. Through support 5 and sliding shaft 32 sliding fit, need not directly support spring 42 on the circumference of sliding shaft 32, when carousel 2 and sliding shaft 32 effect, sliding shaft 32 not only can follow sliding tray 33 rectilinear movement, but also can rotate along the axis of self, effectively reduces the frictional force between carousel 2 and the sliding shaft 32, improves life, avoids appearing the problem of jamming.

Referring to fig. 3, a first embodiment of the bracket 5 is shown, wherein the bracket 5 includes a first bracket plate 51 and a second bracket plate 52 which are vertically arranged, one side of the first bracket plate 51 is engaged with an end of the spring 42, the other side of the first bracket plate 51 is fixedly connected with one end of the second bracket plate 52, and the other end of the second bracket plate 52 is provided with a sliding groove 53 which is slidably engaged with the circumference of one side of the sliding shaft 32. The bracket 5 of the embodiment is supported on the circumference of one side of the sliding shaft 32 through the sliding groove 53, so that the sliding shaft 32 can be ensured to rotate freely, and can be limited by the sliding shaft 32 to prevent falling off, and the bracket has the characteristics of simple structure, small volume and low cost.

Referring to fig. 4, a second embodiment of the support 5 is shown, the support 5 is U-shaped, the support 5 includes two support side plates 54 disposed opposite to each other, and a support bottom plate 55 connected between one ends of the two support side plates 54, a bottom plate hole 57 fixedly connected to the guide rod 41 is disposed on the support bottom plate 55, support shaft holes 56 respectively disposed on the two support side plates 54 and sleeved on the sliding shaft 32, the sliding shaft 32 is disposed inside the two support side plates 54, two ends of the sliding shaft 32 respectively penetrate through the two support shaft holes 56 and extend out of the support 5 and then are inserted into the sliding grooves 33 on both sides, and the turntable 2 extends between the two support side plates 54 and is matched with the middle portion of the sliding shaft 32. The support 5 of this embodiment, with two support curb plates 54 cover that are equipped with support shaft hole 56 at the both ends of sliding shaft 32, not only have the higher and more smooth and easy characteristics of sliding shaft 32 rotation of reliability, carousel 2 stretches moreover between two support curb plates 54 with the middle part cooperation of sliding shaft 32, it is spacing to the carousel 2 cooperation of inboard that makes two support curb plates 54 can also play, the outside of two support curb plates 54 can also cooperate spacingly with the curb plate 30 of both sides simultaneously. Preferably, the sliding shaft 32 is sleeved with a collar 34 at the middle part, the diameter of the collar 34 is larger than that of the sliding shaft 32, and the collar 34 is located between the two bracket side plates 54 and is matched with the side edge of the rotating disc 2. The collar 34 not only rotates around the sliding shaft 32 and forms a sliding fit with the turntable 2 to reduce friction force, but also can increase the contact area with the turntable 2 to improve the matching reliability.

As shown in fig. 6 and 12, a second embodiment of the guide rod 41 is shown, the guide rod 41 includes a first guide rod 41a and a second guide rod 41b, one end of the first guide rod 41a is connected to the bracket 5, the other end of the first guide rod 41a is provided with a guide rod groove 41c that is sleeved on the second guide rod 41b, one end of the second guide rod 41b is provided with a second guide rod shaft hole 310 that is connected to the fixed shaft 31, and the other end of the second guide rod 41b is inserted into the guide rod groove 41c to be slidably engaged, so as to ensure that the positioning mechanism can reliably rotate.

Further, two sides of the second guide rod 41b are respectively provided with a guide rib 41d, a guide rod groove 41c of the first guide rod 41a is cross-shaped, and two opposite side walls of the guide rod groove 41c are respectively provided with a guide groove 41e in sliding fit with the guide rib 41 d.

As shown in fig. 10 and 11, the automatic transfer switching apparatus includes a common base 7, a transmission mechanism 8, a common power contact plate 9, a backup power contact plate 10, a backup base 11, a load end contact plate 12, and a moving contact device 13. The main shaft 1 drives the transmission mechanism 8 to rotate, and the moving contact 13 is connected with a power supply end and a load end.

The foregoing is a more detailed description of the invention, taken in conjunction with the accompanying preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the inventive concept, and all should be considered as falling within the protection scope of the invention.

Claims (10)

1. The utility model provides an automatic change-over switch electrical apparatus, includes actuating mechanism, control mechanism and connects main shaft (1) between actuating mechanism and control mechanism, its characterized in that: the device is characterized by also comprising a transmission mechanism, wherein the transmission mechanism comprises a turntable (2) sleeved on the main shaft (1) and two positioning mechanisms (3) symmetrically arranged at two sides of the turntable (2), and at least three groups of positioning groove groups (21) respectively matched with the two positioning mechanisms (3) are arranged around the turntable (2); the at least three groups of positioning slot groups (21) comprise a common closing positioning slot group, a standby closing positioning slot group and a disconnection positioning slot group which respectively correspond to a common side power supply closing position, a standby side power supply closing position and a disconnection position of the automatic transfer switching device; each group of positioning groove group (21) comprises two positioning grooves symmetrically arranged on two sides of the turntable (2), the two positioning mechanisms (3) move in opposite directions along a straight line to be close to and far away from the two positioning grooves of the turntable (2) and the positioning groove group (21) to be matched, extension lines of the moving directions of the two positioning mechanisms (3) penetrate through the central line of the main shaft (1), and damping mechanisms (4) are arranged in the moving directions of the two positioning mechanisms (3).

2. The automatic transfer switching apparatus according to claim 1, wherein: the positioning mechanism (3) comprises a fixed shaft (31) and a sliding shaft (32), a damping mechanism (4) is arranged between the fixed shaft (31) and the sliding shaft (32), and two ends of the damping mechanism (4) are respectively connected with the fixed shaft (31) and the sliding shaft (32).

3. The automatic transfer switching apparatus according to claim 2, wherein: the two sides of the turntable (2) are respectively provided with a side plate (30), two ends of the fixed shaft (31) are respectively fixedly connected with the side plates (30), one side, close to the turntable (2), of the fixed shaft (31) of each side plate (30) is provided with a sliding groove (33), the length direction of each sliding groove (33) is the same as the connecting line direction from the fixed shaft (31) to the main shaft (1), and two ends of each sliding shaft (32) are respectively in sliding fit with the side plates (30).

4. The automatic transfer switching apparatus according to claim 3, wherein: the damping mechanism (4) comprises a guide rod (41) and a spring (42) sleeved on the outer side of the guide rod (41), one end of the guide rod (41) is connected with the sliding shaft (32), a sliding groove (43) sleeved in the middle of the fixed shaft (31) is arranged at the other end of the guide rod (41), and the length directions of the guide rod (41) and the sliding groove (43) are the same as the length direction of the sliding groove (33).

5. The automatic transfer switching apparatus according to claim 4, wherein: one end of the guide rod (41) close to the sliding shaft (32) is provided with a bracket (5), one side of the bracket (5) is in sliding fit with the circumference of the sliding shaft (32), and one end of the spring (42) close to the sliding shaft (32) is abutted against the other side of the bracket (5).

6. The automatic transfer switching apparatus of claim 5, wherein: the support (5) comprises a first support plate (51) and a second support plate (52) which are vertically arranged, one side of the first support plate (51) is matched with the end part of the spring (42), the other side of the first support plate (51) is fixedly connected with one end of the second support plate (52), and the other end of the second support plate (52) is provided with a sliding groove (53) which is in sliding fit with the circumference of one side of the sliding shaft (32).

7. The automatic transfer switching apparatus of claim 5, wherein: support (5) are the U-shaped, support (5) are including two support curb plates (54) of relative setting, and connect support bottom plate (55) between two support curb plates (54) one end, support bottom plate (55) and guide arm (41) fixed connection, be equipped with support shaft hole (56) of cover on sliding shaft (32) on two support curb plates (54) respectively, sliding shaft (32) set up the inboard at two support curb plates (54), the both ends of sliding shaft (32) pass two support shaft holes (56) respectively and stretch out behind support (5) and insert in sliding tray (33) of both sides, carousel (2) are stretched and are cooperated with the middle part of sliding shaft (32) between two support curb plates (54).

8. The automatic transfer switching apparatus of claim 7, wherein: the middle of the sliding shaft (32) is sleeved with a shaft collar (34), the diameter of the shaft collar (34) is larger than that of the sliding shaft (32), and the shaft collar (34) is located between the two support side plates (54) and matched with the side edge of the rotary disc (2).

9. The automatic transfer switching apparatus according to claim 4, wherein: the guide rod (41) comprises a first guide rod (41a) and a second guide rod (41b), one end of the first guide rod (41a) is connected with the support (5), a guide rod groove (41c) which is sleeved on the second guide rod (41b) is formed in the other end of the first guide rod (41a), one end of the second guide rod (41b) is connected with the fixed shaft (31), and the other end of the second guide rod (41b) is inserted into the guide rod groove (41c) in a sliding fit mode.

10. The automatic transfer switching apparatus of claim 9, wherein: two sides of the second guide rod (41b) are respectively provided with a guide rib (41d), a guide rod groove (41c) of the first guide rod (41a) is in a cross shape, and two opposite side walls of the guide rod groove (41c) are respectively provided with a guide groove (41e) which is in sliding fit with the guide rib (41 d).

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