CN210489490U - Durable high-current switch - Google Patents

Abstract

The utility model discloses a durable heavy current diverter switch, including central binding post, sliding ring, rotary disk assembly, supporting seat, circumference terminal and drive arrangement, the rotary disk assembly includes first pivot, rotary disk and conducting block, the rotary disk suit is on first pivot, is provided with a breach on the rotary disk, and sets up the conducting block in breach department, the conducting block is connected with first pivot; the supporting seat comprises two supporting plates and two supporting blocks, wherein the two supporting plates are arranged in parallel, and a gap is formed between the two supporting plates through the supporting blocks; the rotating disc assembly is rotationally fixed on the supporting seat, circumferential terminals are arranged around the rotating disc assembly, the circumferential terminals are fixed on the supporting seat on the same circumference, the central wiring terminal is connected with one end of the rotating disc assembly through a sliding ring, and the other end of the central wiring terminal is connected with the driving device; by adopting the rotary switch structure, the contact position is randomly changed on the peripheral surface of the rotating body, so that the probability of contact faults caused by repeated generation of electric arcs at the same position is reduced.

Description

Durable high-current switch

Technical Field

The utility model relates to a switch, in particular to durable heavy current change over switch.

Background

New energy automobiles develop rapidly, and the power and the current of vehicle-mounted electric appliances are also increased more and more. Particularly, for a pure electric vehicle, electric power is the only energy source of the whole vehicle, the maximum power supply current can reach several hundred amperes, a traditional contact switch is mostly conducted in a pressure contact mode, conducting contacts are always at the same position, and electric arcs are easily generated when the contacts are opened and closed under a large current state, so that phenomena of ablation, adhesion, poor contact and the like are caused, and a power supply system is in failure; meanwhile, the large current charging and discharging of the battery pack can generate obvious voltage unbalance to cause power failure.

SUMMERY OF THE UTILITY MODEL

To the defect that prior art exists above, the utility model discloses a main aim at overcomes prior art's weak point, discloses a defect to prior art existence above, the utility model discloses a main aim at overcomes prior art's weak point, discloses a durable heavy current change-over switch, including central binding post, sliding ring, rotary disk assembly, supporting seat, circumference terminal and drive arrangement, wherein, the rotary disk assembly includes first pivot, rotary disk and conducting block, the rotary disk is insulating material preparation, the rotary disk suit is in on the first pivot, be provided with a breach on the rotary disk to set up the conducting block in breach department, the conducting block with the first pivot is connected, through first pivot conveying current; the supporting seat is made of an insulating material and comprises two supporting plates and two supporting blocks, wherein the two supporting plates are arranged in parallel, and a gap is formed between the two supporting plates through the supporting blocks; the rotating disc assembly is rotationally fixed on the supporting seat, the circumferential terminals are arranged around the rotating disc assembly and are fixed on the supporting seat on the same circumference, the central wiring terminal is connected with one end of the rotating disc assembly through the slip ring, and the other end of the central wiring terminal is connected with the driving device.

Further, at least one of the circumferential terminals is provided.

Furthermore, two ends of the rotating disc assembly are connected with the two supporting plates of the supporting seat through bearings.

Furthermore, a rolling bearing is arranged on the circumferential terminal, and a line contact is formed at the joint of the cylindrical surface of the rolling bearing and the cambered surface of the conductive block.

Further, the height of the cylindrical surface of the rolling bearing is larger than the thickness of the conductive block or the thickness of the conductive block is larger than the height of the cylindrical surface of the rolling bearing.

Furthermore, the two supporting plates of the supporting seat are oppositely provided with oblong holes distributed in the radial direction of the rotating disc, the circumferential terminal can slide in the radial direction along the oblong holes, two ends of the circumferential terminal are respectively provided with an elastic mechanism, one end of each elastic mechanism is connected with the circumferential terminal, and the other end of each elastic mechanism is connected with the supporting seat.

Further, the elastic mechanism is a spring.

Further, the driving device is a mechanical structure drive or a motor.

Further, the motor is a stepping motor.

Further, the slip ring is a mercury slip ring.

The utility model discloses the beneficial effect who gains:

1. the utility model discloses a rotation type switch structure replaces traditional fixed contact with the rotator periphery, because the contact position changes at the global random of rotator, has avoided same position to produce electric arc repeatedly and has leaded to the probability of contact trouble greatly, even if the global fault of contact failure that appears, can not lead to the whole inefficacy of electric shock yet.

2. The line contact mode replaces the point contact mode of the traditional contact, the contact area is increased, and the large-current conduction capability is ensured. The on current is increased, and the contact surface width is increased.

3. The self-balancing floating compression structure is adopted, the two ends of the circumferential terminal are compressed by the elastic mechanisms, the contact surfaces of the circumferential terminal and the rotating disk assembly can be adjusted in angle in a self-adaptive mode while the pressing force is ensured, the contact surfaces are parallel to each other, and the line contact is ensured. The structure can avoid the influence of the small contact area of the contact on the current conduction capability.

4. The circumference terminal adopts bearing rolling contact, reduces wearing and tearing, guarantees the long-life use of contact.

Drawings

Fig. 1 is a perspective view of a durable high current diverter switch according to the present invention;

fig. 2 is a front view of a durable high current diverter switch according to the present invention;

fig. 3 is a top view of a durable high current diverter switch according to the present invention;

FIG. 4 is a top view of the rotating disc assembly of the present invention;

fig. 5 is a front view of the circumferential terminal of the present invention;

the reference numbers are as follows:

1. the device comprises a central wiring terminal, 2, a slip ring, 3, a rotating disk assembly, 4, a supporting seat, 5, a circumferential terminal, 6, a driving device, 7, a rolling bearing, 8, an elastic mechanism, 31, a first rotating shaft, 32, a rotating disk, 33, a conductive block, 41, a supporting plate, 42 and a supporting block.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

As shown in fig. 1-4, the utility model discloses a durable heavy current diverter switch, including central binding post 1, sliding ring 2, rotary disk assembly 3, supporting seat 4, circumference terminal 5 and drive arrangement 6, wherein, rotary disk assembly 3 includes first pivot 31, rotary disk 32 and conducting block 33, and rotary disk 32 is the insulating material preparation, and rotary disk 32 suit is on first pivot 31, is provided with a breach on rotary disk 32 to set up conducting block 33 in breach department, and conducting block 33 is connected with first pivot 31, transmits current through first pivot 31; the supporting seat 4 is made of an insulating material, the supporting seat 4 comprises two supporting plates 41 and two supporting blocks 42, the two supporting plates 41 are arranged in parallel, and a gap is formed between the two supporting plates through the supporting blocks 42 and used for enabling the rotating disk assembly 3 to rotate in the gap; the rotary disk assembly 3 is rotationally fixed on the supporting seat 4, a plurality of circumferential terminals 5 are arranged around the rotary disk assembly 3, and on the same circumference, the circumferential terminals 5 are fixed on the supporting seat 4, at least one circumferential terminal 5 is arranged, the central wiring terminal 1 is connected with one end of the rotary disk assembly 3 through a slip ring 2, preferably, the slip ring 2 is a mercury slip ring, the other end of the mercury slip ring is connected with a driving device 6, the driving device 6 is used for driving the rotary disk assembly 3 to rotate, the driving device 6 can be driven by a motor or a mechanical structure, preferably, the driving device 6 adopts a stepping motor. In order to enable the rotating disc assembly 3 to rotate more smoothly, the rotating disc assembly 3 is fixed with the supporting seat 4 through a bearing; in addition, as shown in fig. 5, in order to reduce friction and ensure the service life, the circumferential terminal 5 is provided with the rolling bearing 7, so that when the rotating disk assembly 3 rotates, the friction between the rolling bearing 7 and the circumferential terminal 5 can be reduced, the contact between the cylindrical surface of the rolling bearing 7 and the arc surface of the conductive block 33 forms line contact, the contact area of electric shock is greatly increased, the contact position is dynamically and randomly changed, the whole switch failure cannot be caused by local abrasion and ablation, the rolling contact can effectively prevent the bonding phenomenon, in addition, in order to meet the current requirement, the larger the current is, the higher the cylindrical surface of the bearing is selected to be used, the thicker the conductive block 33 is, so as to increase the length of the contact line; in order to make the line contact length as long as possible and the contact more stable, the height of the bearing cylindrical surface is larger than the thickness of the conductive block or the thickness of the conductive block is larger than the height of the bearing cylindrical surface.

In another preferred embodiment, and as shown in fig. 1-3, to compensate for circumferential radial run out of the rotating disk assembly 3, a plurality of oblong holes distributed in the radial direction are oppositely formed on the two supporting plates 41 of the supporting seat 4, the circumferential terminal 5 can slide along the oblong holes in the radial direction, two ends of the circumferential terminal 5 are respectively provided with an elastic mechanism 8, one end of each elastic mechanism 8 is connected with the circumferential terminal 5, the other end is connected with the supporting seat 4, the circumferential terminal 5 is always contacted with the rotating disk assembly 3, the circumferential terminal 5 is allowed to swing in the opposite oblong holes of the two supporting plates 41 of the supporting seat 4 in a pressing mode of the two elastic mechanisms 8, the adjustment of the axis angle is realized, the floating compression mode ensures that the circumferential terminal 5 is in good contact with the conductive block 33, avoids the phenomenon that line contact is changed into point contact due to non-parallelism, and ensures the high-current conduction capability; in order to save cost and facilitate replacement of parts, the elastic mechanism 8 is a spring.

The utility model discloses a durable heavy current change over switch is when using:

the wiring ends of the central wiring terminal 1 and the circumferential terminals 5 are connected with external equipment, the central wiring terminal 1 is input in a single way, the circumferential terminals 5 are output in multiple ways, the driving device 6 drives the rotating disc assembly 3 to rotate, the conductive blocks 33 are contacted with the circumferential terminals 5 to conduct the circumferential terminals 5 with the central wiring terminal 1, the rest circumferential terminals 5 are contacted with the rotating disc 32, and the rotating disc 32 is made of an insulating material, so other circuits are not conducted; by rotating the rotary disk 32, sequential conduction between the central connection terminal 1 and the circumferential terminals 5 can be realized.

The above are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and equivalent arrangements as is within the spirit and scope of the present invention.

Claims (10)

1. A durable high-current switch comprises a central wiring terminal, a slip ring, a rotating disk assembly, a supporting seat, a circumferential terminal and a driving device, and is characterized in that the rotating disk assembly comprises a first rotating shaft, a rotating disk and a conductive block, the rotating disk is made of insulating materials and is sleeved on the first rotating shaft, a notch is formed in the rotating disk, the conductive block is arranged at the notch, and the conductive block is connected with the first rotating shaft and used for transmitting current through the first rotating shaft; the supporting seat is made of an insulating material and comprises two supporting plates and two supporting blocks, wherein the two supporting plates are arranged in parallel, and a gap is formed between the two supporting plates through the supporting blocks; the rotating disc assembly is rotationally fixed on the supporting seat, the circumferential terminals are arranged around the rotating disc assembly and are fixed on the supporting seat on the same circumference, the central wiring terminal is connected with one end of the rotating disc assembly through the slip ring, and the other end of the central wiring terminal is connected with the driving device.

2. A robust high current diverter switch according to claim 1 wherein at least one of said circumferential terminals is provided.

3. A durable high current diverter switch according to claim 1 wherein said rotary disk assembly is mounted at both ends to said support plates of said support housing by bearings.

4. A durable high-current diverter switch according to claim 1, wherein said circumferential terminals are provided with rolling bearings, and the junction of the cylindrical surfaces of said rolling bearings and the cambered surfaces of said conductive bumps forms a line contact.

5. A durable high current diverter switch according to claim 4 wherein said rolling bearing cylindrical surface height is greater than said conductive block thickness or said conductive block thickness is greater than said rolling bearing cylindrical surface height.

6. A durable high-current diverter switch according to claim 1, wherein said two supporting plates of said support are provided with oblong holes radially distributed on said rotating disk, said circumferential terminal can slide radially along said oblong holes, and an elastic mechanism is provided at each end of said circumferential terminal, one end of said elastic mechanism is connected to said circumferential terminal, and the other end of said elastic mechanism is connected to said support.

7. A durable high current diverter switch according to claim 6 wherein said resilient means is a spring.

8. A durable high current diverter switch according to claim 1 wherein said drive means is a mechanical drive or an electric motor.

9. A durable high current diverter switch according to claim 8 wherein said motor is a stepper motor.

10. A durable high current diverter switch according to claim 1 wherein said slip ring is a mercury slip ring.

Images