CN109193598A - A kind of relay, circuit board, power supply and server - Google Patents
A kind of relay, circuit board, power supply and server Download PDFInfo
- Publication number
- CN109193598A CN109193598A CN201811174119.5A CN201811174119A CN109193598A CN 109193598 A CN109193598 A CN 109193598A CN 201811174119 A CN201811174119 A CN 201811174119A CN 109193598 A CN109193598 A CN 109193598A
- Authority
- CN
- China
- Prior art keywords
- relay
- power supply
- limiting element
- current limiting
- flow component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
- H02H9/026—Current limitation using PTC resistors, i.e. resistors with a large positive temperature coefficient
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The invention discloses a kind of relay, circuit board, power supply and server, relay includes current limiting element and continued flow component.Current limiting element is in parallel with relay switch and forms access, continued flow component is in parallel with relay coil and forms access, when relay power, current limiting element limit relay switch electric current in circuit raising, when relay power-off, continued flow component is used to consume the energy being located in relay coil.Relay provided in an embodiment of the present invention includes current limiting element and continued flow component, can be improved the power density of power supply.Circuit board, power supply and server provided in an embodiment of the present invention include the relay.
Description
Technical field
The present invention relates to electricity fields, and in particular to a kind of relay, circuit board, power supply and server.
Background technique
Relay be at present redundant power in common server (common redundant power supplies,
CRPS) essential electronic component in design, as a kind of automatic switch for going control high current running with low current, relay
Device is mainly used in the input terminal of CRPS power supply, the switching device as protection principal current loop.
In the actual use of CRPS, if directly connecting relay after being powered, has big transient current and pass through, to rear
Capacitor charging is held, so capacitor is damaged for a long time bigger.After relay coil power-off, the energy of coil storage cannot discharge
Fall, both ends will generate very big voltage, and energy is discharged in the form of spark, damage terribly electronic switch in this way, with the passing of time right
Mechanical switch also has apparent damage.Current solution is the design electricity in the external coil for increasing some afterflows and current limliting
Road.
Increase current limliting design outside relay and coil design requires to occupy the space of circuit board, this design method
The power density of power supply is relatively low.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of relay, circuit board, power supply and server, the present invention is implemented
The afterflow design integration of current limliting design and coil is integrated into relay by example, improves the power density of power supply.
The application first aspect provides a kind of relay, which may include current limiting element and continued flow component, current limliting
Element is in parallel with relay switch and forms access, and continued flow component is in parallel with relay coil and forms access, when relay is logical
When electric, current limiting element limits the raising of relay switch institute electric current in circuit, and when relay power-off, continued flow component is used to disappear
Consumption is located at the energy in relay coil.The first aspect designs current limliting and afterflow design is all integrated into inside relay, no
Need to occupy the space of circuit board and power supply, the power density of power supply is the power of unit volume interior power, i.e., with power supply
Power obtains the power density of power supply divided by the volume of the power supply.When one timing of power of power supply, due to current limliting design and afterflow
Design is all incorporated into inside relay, does not need the exceptional space for occupying circuit board or power supply, therefore the power density ratio of power supply
It is higher.
With reference to first aspect, in the first possible implementation of first aspect of the embodiment of the present invention, current limiting element
It may include at least one positive temperature coefficient PTC resistor, when relay power, PTC resistor temperature is increased, the electricity of PTC resistor
Resistance value increases, relay switch current reduction in circuit.
With reference to first aspect, in second of possible implementation of first aspect of the embodiment of the present invention, continued flow component
It may include at least two diodes, two diodes are connected in the opposite direction, and when relay power-off, two diodes are used
It is located at the energy in relay coil in consumption.
Second aspect of the embodiment of the present invention provides a kind of circuit board, which may include current limiting element and afterflow member
Part, current limiting element is in parallel with relay switch and forms access, and continued flow component is in parallel with relay coil and forms access, works as electricity
When road plate is powered, current limiting element limits the raising of relay switch institute electric current in circuit, when circuit board powers off, continued flow component
For consuming the energy being located in relay coil.The second aspect designs current limliting and afterflow design is all integrated into circuit board
Portion, the power density of power supply are the power of unit volume interior power, i.e., obtain electricity divided by the volume of the power supply with the power of power supply
The power density in source.When one timing of power of power supply is not required to since current limliting design and afterflow design are all incorporated into inside circuit board
Exceptional space is occupied, therefore the power density of power supply is higher.
In conjunction with second aspect, in the first possible implementation of the second aspect, current limiting element may include at least
One positive temperature coefficient PTC resistor, when circuit board is powered, PTC resistor temperature is increased, and the resistance value of PTC resistor increases, relay
Device switch current reduction in circuit.
In conjunction with second aspect, in a second possible implementation of the second aspect, continued flow component may include at least
Two diodes, two diodes are connected in the opposite direction, when circuit board power-off, two diodes for consume be located at after
Energy in electric apparatus coil.
The third aspect of the embodiment of the present invention provides a kind of power supply, which may include current limiting element and continued flow component, limit
Fluid element is in parallel with relay switch and forms access, and continued flow component is in parallel with relay coil and forms access, when power supply connects
When logical, current limiting element limits the raising of relay switch institute electric current in circuit, and when power supply disconnects, continued flow component is used to consume
Energy in relay coil.The third aspect designs current limliting and afterflow design is all integrated into power source internal, power supply
Power density is the power of unit volume interior power, i.e., the power for obtaining power supply divided by the volume of the power supply with the power of power supply is close
Degree.When one timing of power of power supply does not need to occupy additional since current limliting design and afterflow design are all incorporated into inside relay
Space, therefore the power density of power supply is higher.
In conjunction with the third aspect, in the first possible implementation of the third aspect, current limiting element may include at least
One positive temperature coefficient PTC resistor, when the power is turned on, PTC resistor temperature increase, and the resistance value of PTC resistor increases, relay
Switch current reduction in circuit.
In conjunction with the third aspect, in the second possible implementation of the third aspect, continued flow component may include at least
Two diodes, two diodes are connected in the opposite direction, and when power supply disconnects, two diodes are located at relay for consuming
Energy in device coil.
Fourth aspect of the embodiment of the present invention provides a kind of server, which may include current limiting element and afterflow member
Part, current limiting element is in parallel with relay switch and forms access, and continued flow component is in parallel with relay coil and forms access, works as clothes
Device be engaged in when being powered, current limiting element limits the raising of relay switch institute electric current in circuit, when server powers off, continued flow component
For consuming the energy being located in relay coil.The fourth aspect designs current limliting and afterflow design is all integrated into server
Portion, the power density of power supply are the power of unit volume interior power, i.e., obtain electricity divided by the volume of the power supply with the power of power supply
The power density in source.When one timing of power of power supply is not required to since current limliting design and afterflow design are all incorporated into server internal
Exceptional space is occupied, therefore the power density of power supply is higher.
In conjunction with fourth aspect, in the first possible implementation of the fourth aspect, current limiting element may include at least
One positive temperature coefficient PTC resistor, when the server is powered up, PTC resistor temperature increase, and the resistance value of PTC resistor increases, relay
Device switch current reduction in circuit.
In conjunction with fourth aspect, in the second possible implementation of the fourth aspect, continued flow component may include at least
Two diodes, two diodes are connected in the opposite direction, when server power-off, two diodes for consume be located at after
Energy in electric apparatus coil.
Detailed description of the invention
Fig. 1 is the topological schematic diagram of existing relay；
Fig. 2 is one embodiment schematic diagram of relay in the embodiment of the present invention；
Fig. 3 is one embodiment schematic diagram of circuit board in the embodiment of the present invention；
Fig. 4 is one embodiment schematic diagram of power supply in the embodiment of the present invention；
Fig. 5 is one embodiment figure of server in the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those skilled in the art's every other implementation obtained without creative efforts
Example, shall fall within the protection scope of the present invention.
The term "and/or" occurred in the application, can be a kind of incidence relation for describing affiliated partner, and expression can deposit
In three kinds of relationships, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.
In addition, character "/" in the application, typicallys represent the relationship that forward-backward correlation object is a kind of "or".
The description and claims of this application and term " first " in above-mentioned attached drawing, " second " etc. are for distinguishing
Similar object, without being used to describe a particular order or precedence order.It should be understood that the data used in this way are in appropriate feelings
It can be interchanged under condition, so that the embodiments described herein can be real with the sequence other than the content for illustrating or describing herein
It applies.In addition, term " includes " and " having " and their any deformation, it is intended that cover it is non-exclusive include, for example, packet
The process, method, system, product or equipment for having contained series of steps or module those of be not necessarily limited to be clearly listed step or
Module, but may include other steps being not clearly listed or intrinsic for these process, methods, product or equipment or
Module.
As shown in Figure 1, embodiment one is existing scheme, the relay that embodiment one provides may include: relay switch
101, relay coil 102.When relay power, the circuit where relay switch has very big transient current and passes through,
It charges to rear end capacitor, it is so more serious to rear end capacitor damage ratio for a long time.When relay power-off, in relay coil
Energy cannot discharge, both ends can generate very big voltage, and energy is discharged in the form of spark, in circuit element damage compare
Greatly.
In this regard, the solution of the prior art is to increase current limliting design and afterflow design outside relay, work as relay
When energization, the raising of electric current in the circuit where current limliting design limitation relay switch outside relay, when relay powers off
When, the afterflow outside relay, which is designed, provides the approach of flowing to electric current remaining in relay coil, and energy is delayed
Slowly discharge.
But this increase current limliting design and afterflow design needs to occupy circuit board and power supply in the external of relay
Space, so that the volume of power supply is bigger.The power density of power supply is the power of unit volume interior power, that is, uses the power of power supply
The power density of power supply is obtained divided by the volume of the power supply.Increase current limliting design and afterflow design using in the external of relay
Mode, when the timing of power one of power supply, due to the design of external current limliting and afterflow of relay in power supply design occupy it is certain
Space, volume is bigger, therefore the power density of power supply is relatively low.
Fig. 2 is relay schematic diagram provided in an embodiment of the present invention, as shown, the relay that embodiment two provides can be with
It include: relay switch 201, relay coil 202, the diode 203 and 204 of two differential concatenations, PTC resistor 205.At this
In inventive embodiments, by taking two diodes as an example, but it is not limited at least need two two poles there are two diode
Pipe, and two diodes must be differential concatenation, and differential concatenation is that two diodes are gone here and there in the opposite direction in circuit
Connection, diode is a kind of electricity component of unilateal conduction, and two diodes in reverse series can be consumed from circuit from two
The electric current in a direction, if there is three or three or more diodes in circuit, in addition to two poles of two differential concatenations
The connection direction of pipe must be other than differential concatenation, and the connection side of other diodes in circuit is hitherward with no restrictions.?
In the embodiment of the present invention by taking a PTC resistor as an example, but it is not limited to there can only be a PTC resistor.
In relay provided in an embodiment of the present invention, PTC resistor 205 is in parallel with relay switch 201, two reversed strings
The diode 203 and 204 of connection is in parallel with relay coil 202.It, i.e., should when relay switch 201 is opened when relay power
Raising of the PTC resistor 205 for electric current in limiting circuit.When relay switch 201 is opened, the 205 temperature liter of PTC resistor
Height, resistance value increase, the current reduction in the case that relay switch both end voltage is constant, in circuit.When relay switch 201
When disconnection, the diodes 203 and 204 of two differential concatenations and relay coil 202 form access, to the electric current in coil after
Offer approach is moved in afterflow, and the diode 203 and 204 of two differential concatenations can consume the electric current of both direction in circuit, therefore
Tube current is not flowed from that direction, and diode 203 and diode 204 can allow remaining energy in circuit can be gently
Self consumption, is discharged in the form of electric spark so as to avoid energy, protects the element in circuit.
The embodiment of the present invention by current limliting design and afterflow design be all integrated into inside relay, do not need occupy circuit board with
And the space of power supply, the power density of power supply are the power of unit volume interior power, i.e., with the power of power supply divided by the power supply
Volume obtains the power density of power supply.When one timing of power of power supply, since current limliting design and afterflow design are all incorporated into relay
Inside device, the exceptional space for occupying circuit board or power supply is not needed, therefore the power density of power supply is higher.
The embodiment of the invention also provides a kind of circuit boards, as shown in figure 3, the circuit board that embodiment three provides can wrap
Include: substrate layer 301, cover film 302, relay 303 and solder mask 304, cover film 302 are laminated on substrate layer 301.Relay
Device 303 is fixed on substrate layer 301.Solder mask 304 is surrounded on 304 side of relay, for providing insulation for relay 304
Environment.The circuit board can be applied to the equipment such as power supply, server.When the circuit board accesses circuit, forms access, relay
303 can be with the raising of electric current in limiting circuit, when power supply is disconnected from the circuit, and relay 303 can consume remaining in circuit
Energy.In the circuit board provided in embodiments of the present invention, a kind of electronic component of relay 303 is only listed, actual
It there may also be multiple electronic components in circuit, herein with no restrictions.
Relay 303 in circuit board provided in an embodiment of the present invention is relay described in embodiment two, the relay
Internal structure, internal circuit connection and beneficial effect referring to embodiment two understood which is not described herein again.
The embodiment of the present invention also provides a kind of power supply, as shown in figure 4, the power supply that example IV provides may include: relay
Device 401, anode 402, cathode 403, electrolyte 404.Relay 401 and the anode 402 of power supply are connected directly, when power supply is connected to
In circuit, when forming access, relay 401 can be with the raising of electric current in limiting circuit, when power supply is disconnected from the circuit, relay
Device 401 can consume remaining energy in circuit.In power source internal it is also possible to having multiple electronic components, here with no restrictions.
Relay 401 in power supply provided in an embodiment of the present invention is relay described in embodiment two, the relay
Internal structure, internal circuit connection and beneficial effect may refer to embodiment two and understood which is not described herein again.
The embodiment of the present invention also provides a kind of server, as shown in figure 5, the server that embodiment five provides may include:
Cabinet 501, memory 502, power supply 503 and fan 504.Cabinet 501 is for calling the program instruction stored in memory 502 to hold
Line program order.Memory 502 is used for for the program instruction in storage server, power supply 503 to the cabinet in server
501, memory 502, fan 504 are powered, and fan 504 is used to radiate to cabinet 501, memory 502, power supply 503.
Power supply 503 in server provided in an embodiment of the present invention is power supply described in example IV, the internal junction of the power supply
Structure, internal circuit connection and beneficial effect may refer to example IV and understood, which is not described herein again.
Circuit board, power supply and the server provided in the embodiment of the present invention includes the above relay, and therefore, the present invention is implemented
Circuit board, power supply and the server that example provides all have limitation electric current and increase, and prevent the effect of electric spark.The present invention is implemented
Current limliting design and afterflow design are all integrated into inside relay by example, do not need the space for occupying circuit board and power supply, power supply
Power density be unit volume interior power power, i.e., obtain the power of power supply divided by the volume of the power supply with the power of power supply
Density.When one timing of power of power supply does not need to occupy electricity since current limliting design and afterflow design are all incorporated into inside relay
The exceptional space of road plate or power supply, therefore the power density of power supply is higher
Relay, circuit board, power supply and server is provided for the embodiments of the invention above to be described in detail, this
Apply that a specific example illustrates the principle and implementation of the invention in text, the explanation of above example is only intended to
It facilitates the understanding of the method and its core concept of the invention；At the same time, for those skilled in the art, think of according to the present invention
Think, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not be construed as pair
Limitation of the invention.Although the application is described in detail with reference to the foregoing embodiments, those skilled in the art
It is understood that it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technology
Feature is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and the application is respectively implemented
The spirit and scope of example technical solution.
Claims (10)
1. a kind of relay, which is characterized in that the relay includes current limiting element and continued flow component, the current limiting element with after
Electric switch is in parallel and forms access, and the continued flow component is in parallel with relay coil and forms access, when the relay is logical
When electric, the current limiting element limit the relay switch electric current in circuit raising, when relay power-off, institute
Continued flow component is stated for consuming the energy being located in the relay coil.
2. relay according to claim 1, which is characterized in that the current limiting element includes at least one positive temperature coefficient
PTC resistor, when the relay power, the PTC resistor temperature is increased, and the resistance value of the PTC resistor increases, it is described after
Electric switch current reduction in circuit.
3. relay according to claim 1, which is characterized in that the continued flow component includes at least two diodes, institute
It states two diodes to connect in the opposite direction, when relay power-off, described two diodes are located at institute for consuming
State the energy in relay coil.
4. a kind of circuit board, which is characterized in that the circuit board includes current limiting element and continued flow component, the current limiting element with after
Electric switch is in parallel and forms access, and the continued flow component is in parallel with relay coil and forms access, when the circuit board is logical
When electric, the current limiting element limit the relay switch electric current in circuit raising, when circuit board power-off, institute
Continued flow component is stated for consuming the energy being located in the relay coil.
5. circuit board according to claim 4, which is characterized in that the current limiting element includes at least one positive temperature coefficient
PTC resistor, when the circuit board is powered, the PTC resistor temperature is increased, and the resistance value of the PTC resistor increases, it is described after
Electric switch current reduction in circuit.
6. circuit board according to claim 4, which is characterized in that the continued flow component includes at least two diodes, institute
It states two diodes to connect in the opposite direction, when circuit board power-off, described two diodes are located at institute for consuming
State the energy in relay coil.
7. a kind of power supply, which is characterized in that the power supply includes current limiting element and continued flow component, the current limiting element and relay
Switch in parallel and formation access, the continued flow component is in parallel with relay coil and forms access, when the power supply is connected, institute
State current limiting element limit the relay switch electric current in circuit raising, when the power supply disconnects, the afterflow member
Part is used to consume the energy being located in the relay coil.
8. power supply according to claim 7, which is characterized in that the current limiting element includes at least one positive temperature coefficient
PTC resistor, the PTC resistor and the switch in parallel, when the power supply is connected, the PTC resistor temperature is increased, described
The resistance value of PTC resistor increases, the relay switch current reduction in circuit.
9. power supply according to claim 7, which is characterized in that the continued flow component includes at least two diodes, described
Two diodes are connected in the opposite direction, when the power supply disconnects, described two diodes for consume be located at it is described after
Energy in electric apparatus coil.
10. a kind of server, which is characterized in that the server includes current limiting element and continued flow component, the current limiting element with
Relay switch is in parallel and forms access, and the continued flow component is in parallel with relay coil and forms access, when the server
When energization, the current limiting element limit the relay switch electric current in circuit raising, when server power-off,
The continued flow component is used to consume the energy being located in the relay coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811174119.5A CN109193598A (en) | 2018-10-09 | 2018-10-09 | A kind of relay, circuit board, power supply and server |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811174119.5A CN109193598A (en) | 2018-10-09 | 2018-10-09 | A kind of relay, circuit board, power supply and server |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109193598A true CN109193598A (en) | 2019-01-11 |
Family
ID=64947669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811174119.5A Pending CN109193598A (en) | 2018-10-09 | 2018-10-09 | A kind of relay, circuit board, power supply and server |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109193598A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101257211A (en) * | 2007-03-01 | 2008-09-03 | 海尔集团公司 | Circuit for preventing powered on moment impact in frequency converting air conditioner |
| CN102097798A (en) * | 2011-03-16 | 2011-06-15 | 深圳茂硕电源科技股份有限公司 | High-power startup surge suppression circuit |
| CN103117191A (en) * | 2013-01-24 | 2013-05-22 | 上海友邦工业控制系统有限公司 | Integration type relay module |
| CN104134981A (en) * | 2014-07-02 | 2014-11-05 | 邯郸美的制冷设备有限公司 | Overvoltage protection device for air conditioner, overvoltage protection method and air conditioner |
-
2018
- 2018-10-09 CN CN201811174119.5A patent/CN109193598A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101257211A (en) * | 2007-03-01 | 2008-09-03 | 海尔集团公司 | Circuit for preventing powered on moment impact in frequency converting air conditioner |
| CN102097798A (en) * | 2011-03-16 | 2011-06-15 | 深圳茂硕电源科技股份有限公司 | High-power startup surge suppression circuit |
| CN103117191A (en) * | 2013-01-24 | 2013-05-22 | 上海友邦工业控制系统有限公司 | Integration type relay module |
| CN104134981A (en) * | 2014-07-02 | 2014-11-05 | 邯郸美的制冷设备有限公司 | Overvoltage protection device for air conditioner, overvoltage protection method and air conditioner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111404363B (en) | Capacitor series-parallel switching circuit and electronic system | |
| CN105788556A (en) | Overvoltage protection circuit and method and liquid crystal drive circuit | |
| KR101927645B1 (en) | Charging circuit and mobile terminal | |
| CN201075819Y (en) | Fan system and soft start circuit module thereof | |
| CN110515446A (en) | A kind of server and its power supply and power consumption monitoring circuit | |
| CN106502364A (en) | A kind of isolated location and a kind of server | |
| US20220330404A1 (en) | Lighting device and power switching circuit | |
| CN203827604U (en) | Capacitor and circuit board connection structure | |
| CN109193598A (en) | A kind of relay, circuit board, power supply and server | |
| Ghanbari et al. | Solid‐state transient limiter for capacitor bank switching transients | |
| US20230291351A1 (en) | Power switch circuit and power switch | |
| CN101656418B (en) | Fan system and power reverse protection device thereof | |
| US20230045028A1 (en) | Charging system, method and device for controlling charging system, and electronic device | |
| CN207926553U (en) | A kind of multifunction switch controller | |
| CN113258789B (en) | Switching power supply circuit and electronic device | |
| CN102213991A (en) | Standby voltage supply system of server | |
| CN208299685U (en) | Power supply circuit, control panel and consumer | |
| CN211830334U (en) | RTC power supply circuit, mobile power supply leasing equipment and mobile power supply leasing system | |
| CN222029665U (en) | Pre-charge and discharge circuit and power equipment | |
| JP6976982B2 (en) | Charging circuit and mobile terminal | |
| CN221487741U (en) | Hierarchical identification circuit of non-isolation POE | |
| CN221977393U (en) | Electronic tag Ra circuit | |
| CN210129197U (en) | Server boost power supply circuit | |
| CN206759149U (en) | A kind of UPS module of integrability | |
| US10778214B1 (en) | Circuit structure and power-on method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190111 |