CN210074773U - Successive layer electrifying device for burn-in rack - Google Patents
Successive layer electrifying device for burn-in rack Download PDFInfo
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- CN210074773U CN210074773U CN201921299323.XU CN201921299323U CN210074773U CN 210074773 U CN210074773 U CN 210074773U CN 201921299323 U CN201921299323 U CN 201921299323U CN 210074773 U CN210074773 U CN 210074773U
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- layer
- rack
- circuit
- burn
- ageing rack
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Abstract
The utility model discloses a device on ageing rack successive layer, including ageing rack and control box, the parallel connection has many connecting circuit in the control box, is provided with the delay unit and the circuit breaker of establishing ties each other on the connecting circuit, connecting circuit's upper reaches end links to each other with the positive pole of rectifier, and its low reaches end links to each other with each layer of old family's frame, and ageing rack links to each other with the negative pole of rectifier simultaneously, the utility model discloses a delay unit is with the on-time of ageing rack each layer in proper order postponing to realized going up electricity to the successive layer of ageing rack each layer, it compares with traditional whole power-on mode, and single circular telegram electric current obtains reducing, thereby has reduced whole circuit at circular telegram instantaneous electric current in the twinkling of an eye, avoids the circuit board to be burnt by instantaneous electric current, and then guarantees the safety of whole equipment, just the utility model is easy operation.
Description
Technical Field
The utility model relates to an ageing rack equipment technical field, concretely relates to electric device on successive layer for ageing rack.
Background
At present, the burn-in rack is widely applied to burn-in detection tests of various devices, in the prior art, a plurality of burn-in racks are generally electrified by alternating current at the same time, so that a large instantaneous current can be generated at the moment of electrifying the burn-in racks, and various original devices are easily burnt; meanwhile, 220V alternating current is adopted for power supply, and the aging rack is generally of a metal structure, so that once electric leakage occurs in the normal working process, workers are easily subjected to electric shock, and certain potential safety hazards exist in the working process.
SUMMERY OF THE UTILITY MODEL
For solving the defect that the circuit board burns out easily that exists among the prior art, the utility model discloses a device goes up to electricity on successive layer for burn-in frame, this device avoid being qualified for the next round of competitions too big instantaneous current in burn-in frame start-up phase through the mode that successive layer was gone up to avoid the circuit board to be burnt out, guarantee the long-term steady operation of equipment, prolong the life of equipment.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
a layer-by-layer electrifying device for an ageing rack comprises the ageing rack and a control box, wherein the control box is connected with an external power supply through a rectifier; the control box is also internally provided with a plurality of paths of mutually separated connecting circuits, the connecting circuits are provided with a time delay device and a circuit breaker which are mutually connected in series, the upstream end of each connecting circuit is connected with the anode of the rectifier in parallel, and the downstream end of each connecting circuit is respectively connected with each layer corresponding to the ageing rack; the aging rack is connected with the cathode of the rectifier.
Preferably, each connecting circuit is further provided with an overload protector.
Preferably, the time delay device comprises a time delay relay and a time relay.
Preferably, according to the sequence of power-on, the extension time of each time delay device is increased linearly, and the time difference between two time delay devices which are started in sequence is 1-20 s.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model discloses an ageing rack and control box, the parallel connection has many connecting circuit in the control box, is provided with the time delay unit and the circuit breaker of establishing ties each other on the connecting circuit, connecting circuit's upper reaches end links to each other with the positive pole of rectifier, and its low reaches end links to each other with each layer of old family's frame, and ageing rack links to each other with the negative pole of rectifier simultaneously, the utility model discloses a time delay unit will age the on time of each layer of frame and prolong in proper order to realized going up electricity to the successive layer of ageing rack each layer, all the other traditional whole power-on modes are compared, and single circular telegram power obtains reducing, thereby has reduced whole circuit and in the instantaneous current in the twinkling of an eye that circular telegram, avoids the circuit board to be burnt by instantaneous current, and then guarantees the safety of whole equipment, just the utility model is.
2. The utility model discloses a still be provided with overload protection ware on the short circuit of connection, can in time cut the electric current when single circuit takes place to transship to components and parts such as protection short circuit board.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a circuit connection diagram of the present invention.
Reference numerals: 1. ageing rack, 2, control box, 3, rectifier, 4, connecting circuit, 5, delay device, 6, circuit breaker, 7, overload protection ware.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Embodiment 1:
this embodiment is regarded as the utility model discloses a device is gone up to ageing rack successive layer, and concrete structure is as shown in fig. 1 and fig. 2, including ageing rack 1 and control box 2, be provided with multichannel alternate segregation's connecting circuit 4 in the control box 2, be provided with rectifier 3 in the control box 2 simultaneously, the alternating current interface end of rectifier 3 communicates with mains system, the upstream end of connecting circuit 4 is parallelly connected with the positive terminal of direct current of rectifier 3 respectively, and is provided with time delay unit 5, circuit breaker 6 and overload protection ware 7 of establishing ties each other on the connecting circuit 4, time delay unit 5 both can adopt the time delay circuit breaker, also can adopt time relay simultaneously; according to the sequence of starting, the extension time of the delay device 5 is increased linearly, the time difference between two delay devices 5 which are started successively is 1s, the downstream end of the connecting circuit 4 is connected with the upstream end of each layer of power supply interface of the aging rack 1, and the downstream end of each layer of power supply interface of the aging rack 1 is connected with the cathode of the rectifier 3, so that the smoothness of the whole current loop is ensured.
The utility model discloses convert the alternating current commercial power into the direct current that needs through the rectifier during use, carry the consumer again, the break-make time of each connecting circuit is controlled through the start-up time of setting for time delay relay to realize the wrong time circular telegram between each layer of ageing rack, all the other prior art compare, instantaneous current in the ageing rack circular telegram in-process that can greatly reduced avoids circular telegram great instantaneous current in the twinkling of an eye to burn out the circuit board, protects the normal use of each former device.
Claims (4)
1. The utility model provides a device is gone up to layer-by-layer for burn-in rack, includes burn-in rack (1) and control box (2), its characterized in that: the control box (2) is connected with an external power supply through a rectifier (3); the control box (2) is also internally provided with a plurality of paths of mutually separated connecting circuits (4), the connecting circuits (4) are provided with a time delay device (5) and a circuit breaker (6) which are mutually connected in series, the upstream end of each connecting circuit (4) is connected with the anode of the rectifier (3) in parallel, and the downstream end of each connecting circuit (4) is respectively connected with each layer corresponding to the aging rack (1); the aging rack (1) is connected with the negative electrode of the rectifier (3).
2. A layer-by-layer power-on device for a burn rack as claimed in claim 1, wherein: and each connecting circuit (4) is also provided with an overload protector (7).
3. A layer-by-layer power-on device for a burn rack as claimed in claim 1, wherein: the time delay device (5) comprises a time delay relay and a time relay.
4. A layer-by-layer power-on device for a burn rack as claimed in claim 1, wherein: according to the sequence of power-on, the extension time of each time delay device (5) is increased linearly, and the time difference between two time delay devices (5) which are started in sequence is 1-20 s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921299323.XU CN210074773U (en) | 2019-08-12 | 2019-08-12 | Successive layer electrifying device for burn-in rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921299323.XU CN210074773U (en) | 2019-08-12 | 2019-08-12 | Successive layer electrifying device for burn-in rack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210074773U true CN210074773U (en) | 2020-02-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921299323.XU Active CN210074773U (en) | 2019-08-12 | 2019-08-12 | Successive layer electrifying device for burn-in rack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210074773U (en) |
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2019
- 2019-08-12 CN CN201921299323.XU patent/CN210074773U/en active Active
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