CN2657288Y - Heat connect-disconnect device for power supply - Google Patents
Heat connect-disconnect device for power supply Download PDFInfo
- Publication number
- CN2657288Y CN2657288Y CN 03222273 CN03222273U CN2657288Y CN 2657288 Y CN2657288 Y CN 2657288Y CN 03222273 CN03222273 CN 03222273 CN 03222273 U CN03222273 U CN 03222273U CN 2657288 Y CN2657288 Y CN 2657288Y
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- power supply
- input
- plug
- power
- circuit
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Abstract
The utility model discloses a power hot-plug device, which aims at providing a power hot-plug device which can reduce the shock of input capacitance large current during the moment of charging and output current to connector assembly and electric circuit and increase the reliability of power. A power hot-plug device, during the connector assembly of which, a minimum length is between a power plug and a position mark pointer or between a power plug of connector assembly of a backplane plug and a position hole. A microswitch is provided on a plug handle. The microswitch is off when the handle is drawn to a small angel. A capacitance precharging circuit is provided on the main voltage input switch circuit, and at the same time a voltage comparing circuit is added.
Description
Technical field
The utility model relates to a kind of plug-in and pull-off device, in particular, relates to the Power Supply Hot Swap device in the communication field.
Background technology
In the power supply design, sparking is the key issue that the designer considers to connector for electric capacity charging instantaneous large-current and load current during Power Supply Hot Swap.In the existing method: as the patent No. is 99216547.4, name is called the patent of " buffer unit that is used for the hot connecting and disconnecting subset ", be to be added in the circuit as current limliting with resistance, shortcoming is that resistance is wanted consumed energy when the power supply operate as normal, influence power-efficient, and introduced the unreliable factor of circuit.And for example patent publication No. is 99124027.8, name is called the patent application of " veneer and the backboard thereof that can realize the hot plug of switch veneer ", it is the soft starting circuit that in circuit, adds the band metal-oxide-semiconductor, control the conducting electric current of MOS with the charging process of electric capacity, shortcoming is that metal-oxide-semiconductor power consumption in the opening and closing process is very big, poor reliability.
The utility model content
The utility model is in order to overcome weak point of the prior art, and a kind of impact that can reduce input capacitance charging instantaneous large-current and output current to connector and circuit is provided, and improves the Power Supply Hot Swap device of power supply reliability.
The utility model is achieved through the following technical solutions:
A kind of device of Power Supply Hot Swap comprises power supply, and described outer casing of power supply is provided with the plug handle, it is characterized in that, is provided with the input capacitance pre-charge circuit and imports big electric capacity between the output of input power cord and input switching circuit; In control circuit, be provided with the input voltage comparison circuit; It is the shortest that power supply is inserted into the bit flag pin in the plug connector of mainboard.Described plug handle is provided with sensitive switch.Plug connector length in the described supply socket is controlled the connection order of each line: the longest be the pin of output ground wire, secondly be the pin of input power cord and ground wire, once more be the out-put supply line pin, the shortest be that power supply is inserted into the bit flag pin.
A kind of device of Power Supply Hot Swap comprises power supply, and described outer casing of power supply is provided with the plug handle, it is characterized in that, is provided with the input capacitance pre-charge circuit and imports big electric capacity between the output of input power cord and input switching circuit; In control circuit, be provided with the input voltage comparison circuit; Power supply is inserted into a Kongzui weak point in the backboard socket connector.Described plug handle is provided with sensitive switch.
The utlity model has following beneficial effect:
1. when having lowered the power supply plug effectively to the impact of connector and circuit.
2. starting the pass closed procedure all is little electric current, guarantees that normal plug power supply or improper plug power supply can not cause big power consumption to damage the Primary Component input switch.
Especially when large power supply is used such scheme could guarantee that connector fully contacts after (be inserted into position) just output current, could guarantee that socket by the damage of striking sparks, is reduced to minimum with contact resistance simultaneously, the connector caloric value drops to minimum.
Description of drawings
Fig. 1 is power supply plug grip structure and course of action schematic diagram;
Fig. 2 is power supply major loop and power control circuit figure.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
In order to improve the reliability of power supply, adopt power supply to be inserted into the control signal of bit flag pin as mains switch.Can realize by dual mode: a kind of be in the supply socket power supply to be inserted into the bit flag pin the shortest, other pin length can equate, also can be the connection order that pin branch level Four length is controlled each line: the longest be the pin of output ground wire, secondly be the pin of input power cord and ground wire, once more be the out-put supply line pin, the shortest be that power supply is inserted into the bit flag pin.Another kind is that power supply is inserted into a Kongzui weak point in the slotting joint of the backboard socket part, and other hole can be equally long, also can be corresponding with each pin length of above-mentioned supply socket.
Adopt power supply to be inserted into the bit flag pin has several aspects as the control signal of mains switch effect: the control signal of on circuit, making input switching circuit, have only the effective input voltage of this signal just can be fed on the major loop of power supply, and the power supply major loop just can start working, and power supply just can have output; And controller is inquired about this signal, if power supply is not inserted into the position, indicator light flash for prompting operating personnel is always noted; Simultaneously hour hand breaks away from earlier when power supply is extracted; input switching circuit disconnection input voltage is closed and controlled to the earlier invalid major loop output voltage of controlling of this signal; guarantee that other contact pins break away under no-load condition, protect other contact pins not because of often plugging damaged.
On the plug handle of power supply sensitive switch has been installed, it is just closed that handle is incorporated into a sensitive switch, and handle draws back a low-angle, and for example 5 sensitive switches when spending disconnect.This sensitive switch on the circuit with the power pack panel on switch logically be with relation, that is to say that a jug is incorporated into a power supply and just output might be arranged; As long as handle is opened a low-angle power supply and is just closed output.All pins contacts that guarantee handle all sockets in 0 to 5 degree scope from structure are good, thereby guarantee that first powered-down output pulls out power supply again, when having avoided bringing onto load to pull out power supply to the influence of other veneers; Can guarantee equally structurally that handle hour hand of connector before being incorporated into 5 degree contacts fully puts in place, thereby the pin that guarantees all connectors when might opening electricity all fully reliably patches.
Power supply plug grip structure and course of action comprise power supply plug handle 1, sensitive switch 2, frame section bar track 3, handle axle 4 as shown in Figure 1.Plug handle 1 and handle axle 4 all are to be fixed on the power shell, and sensitive switch 2 closes when power supply plug handle 1 withstands frame section bar track 3 inner edges, and power shell also puts in place.With handle axle 4 is the axle center, frame section bar track 3 outsides are fulcrum, before drawing back 5 degree, power supply plug handle 1 is in free state, (dotted portion is represented) sensitive switch 2 just in time disconnects fully when 5 spend, power supply plug this moment handle 1 pushes up frame section track 3 outsides, and beginning is that the pivot point lever power pack of exerting oneself breaks away from frame with frame section track 3 outsides.
Power supply major loop and power control circuit are as shown in Figure 2, in the circuit major loop: input power cord and ground arrive the big electric capacity of input through input capacitance pre-charge circuit and input switching circuit, to voltage conversion circuit and output loop power supply, finally export 3.3V, 5V power supply.The input capacitance pre-charge circuit gives input big electric capacity charging before input switch is opened; Input switching circuit is the metal-oxide-semiconductor circuit, by control input current is not impacted, and makes the power supply input and output controlled; Voltage conversion circuit is that the input electricity converts output system required voltage value to, the control of its controlled circuit of conversion; Output loop is the processing section of out-put supply.In power control circuit: comprise input voltage comparison circuit, switching signal treatment circuit, controller circuitry.Input signal has: the voltage signal on the signal of sensitive switch signal, power panel switch, hour hand signal, the big electric capacity of input.Output signal has: the control signal of input switching circuit, voltage conversion circuit control signal, indicator of the power supply status signal.
When power supply inserted, the power pack socket connector plug contact with the socket of backboard before this, and the contact pin connection is to export pin, the pin of out-put supply line, the power supply of pin, input power cord and the ground wire of ground wire to be inserted into hour hand in proper order successively in the socket; Power pack plug handle is pushed to, sensitive switch closes again; Ready, the opening power panel-switch.
If power supply be inserted into the bit flag pin not with corresponding jack (the connecing the place of working) contact of backboard on, power supply can not be opened soft starting circuit, import contact pin and do not have rush of current this moment, and do not have output voltage, do not have the influence of electric current and voltage to exporting any other veneer of being got in touch.
Power pack during insertion, even switch is in open mode on the power pack panel, when inserting because it is to belong to series relationship with sensitive switch, having only power pack plug handle to be incorporated into a sensitive switch just closes, and this moment, power pack must be to be inserted into the position, because power supply plug handle and power pack are whole, handle puts in place and must put in place by power pack, in the mark needle that must put in place the contact, this moment is in the time of also just can opening power.
The hour hand power supply of power supply put in place mark needle on not having contact the time controller of power supply detect and make the indicator light flicker, the prompting power supply does not put in place and causes that operating personnel plug processing.
When power supply was extracted, first powered-down box panel switch cut off output; Opening power plugs handle again, and sensitive switch disconnects; Draw power supply plug handle, pull out power pack, power pack breaks away from backboard fully, and power supply quits work.
If when pulling out power pack, there is not the switch on the powered-down box panel just to pull out power supply, on power supply in the past, be problematic, it will influence other veneers and other power supplys (as parallel connection).In the utility model scheme, pulling out power supply must pull handle earlier, as long as handle draws back a low-angle, for example 5 degree (structurally guaranteeing that the power supply mark needle that puts in place does not break away from this moment) sensitive switch just disconnects, power supply output is closed, the input soft start is closed, and power supply quits work, and is when can pull out power supply fully.
Make and pull out 5 degree sensitive switches and do not disconnect if pull out power pack and be on the structure error, the shortest power supply of power pack socket put in place mark needle guarantee first powered-down input and output once more after other contact pins break away from.
Claims (5)
1. the device of a Power Supply Hot Swap comprises power supply, and described outer casing of power supply is provided with the plug handle, it is characterized in that, is provided with the input capacitance pre-charge circuit and imports big electric capacity between the output of input power cord and input switching circuit; In control circuit, be provided with the input voltage comparison circuit; It is the shortest that power supply is inserted into the bit flag pin in the plug connector of supply socket.
2. the device of Power Supply Hot Swap according to claim 1 is characterized in that, described plug handle is provided with sensitive switch.
3. the device of Power Supply Hot Swap according to claim 1 and 2, it is characterized in that the plug connector length in the described supply socket is controlled the connection order of each line: the longest be the pin of output ground wire, secondly be the pin of input power cord and ground wire, once more be the out-put supply line pin, the shortest be that power supply is inserted into the bit flag pin.
4. the device of a Power Supply Hot Swap comprises power supply, and described outer casing of power supply is provided with the plug handle, it is characterized in that, is provided with the input capacitance pre-charge circuit and imports big electric capacity between the output of input power cord and input switching circuit; In control circuit, be provided with the input voltage comparison circuit; Power supply is inserted into a Kongzui weak point in the backboard socket connector.
5. the device of Power Supply Hot Swap according to claim 4 is characterized in that, described plug handle is provided with sensitive switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03222273 CN2657288Y (en) | 2003-05-25 | 2003-05-25 | Heat connect-disconnect device for power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03222273 CN2657288Y (en) | 2003-05-25 | 2003-05-25 | Heat connect-disconnect device for power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2657288Y true CN2657288Y (en) | 2004-11-17 |
Family
ID=34325922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03222273 Expired - Lifetime CN2657288Y (en) | 2003-05-25 | 2003-05-25 | Heat connect-disconnect device for power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2657288Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007118391A1 (en) * | 2006-04-14 | 2007-10-25 | Huawei Technologies Co., Ltd. | A control device for the power on/off of a single board and a communication system |
| CN101888182A (en) * | 2010-06-24 | 2010-11-17 | 无锡新硅微电子有限公司 | DC-DC converter provided with power receiver |
| CN102882499A (en) * | 2012-09-04 | 2013-01-16 | 福建星网锐捷网络有限公司 | Hot-plug control circuit and system of power supply |
| CN106793657A (en) * | 2017-02-23 | 2017-05-31 | 深圳市科思科技股份有限公司 | A kind of VPX power supplys and its hot-swappable implementation method |
| CN114567171A (en) * | 2021-09-30 | 2022-05-31 | 惠州市乐亿通科技有限公司 | Charging device |
-
2003
- 2003-05-25 CN CN 03222273 patent/CN2657288Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007118391A1 (en) * | 2006-04-14 | 2007-10-25 | Huawei Technologies Co., Ltd. | A control device for the power on/off of a single board and a communication system |
| CN101888182A (en) * | 2010-06-24 | 2010-11-17 | 无锡新硅微电子有限公司 | DC-DC converter provided with power receiver |
| CN101888182B (en) * | 2010-06-24 | 2012-11-21 | 无锡新硅微电子有限公司 | DC-DC converter provided with power receiver |
| CN102882499A (en) * | 2012-09-04 | 2013-01-16 | 福建星网锐捷网络有限公司 | Hot-plug control circuit and system of power supply |
| CN102882499B (en) * | 2012-09-04 | 2016-08-03 | 福建星网锐捷网络有限公司 | Power Supply Hot Swap control circuit and system |
| CN106793657A (en) * | 2017-02-23 | 2017-05-31 | 深圳市科思科技股份有限公司 | A kind of VPX power supplys and its hot-swappable implementation method |
| CN114567171A (en) * | 2021-09-30 | 2022-05-31 | 惠州市乐亿通科技有限公司 | Charging device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenzhen Zhongxing Communication Technology Service Co., Ltd. Assignor: ZTE Corporation Contract fulfillment period: 2007.1.16 to 2013.1.16 Contract record no.: 2008990000959 Denomination of utility model: Heat connect-disconnect device for power supply Granted publication date: 20041117 License type: Exclusive license Record date: 20081027 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2007.1.16 TO 2013.1.16; CHANGE OF CONTRACT Name of requester: SHENZHEN CITY ZHONGXING COMMUNICATIONS TECHNOLOGY Effective date: 20081027 |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130525 Granted publication date: 20041117 |