CN207261252U - A kind of FSEDT series electronics time-delay differential pressure controller - Google Patents
A kind of FSEDT series electronics time-delay differential pressure controller Download PDFInfo
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- CN207261252U CN207261252U CN201721052398.9U CN201721052398U CN207261252U CN 207261252 U CN207261252 U CN 207261252U CN 201721052398 U CN201721052398 U CN 201721052398U CN 207261252 U CN207261252 U CN 207261252U
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- Prior art keywords
- cage assembly
- fixedly connected
- mandril
- cross recess
- differential pressure
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Abstract
The utility model discloses a kind of FSEDT series electronics time-delay differential pressure controller.It includes the parts such as machine driving, pressure input, pressure differential resetting instruction, signal control computing output function and forms.By indicating that functional component is set up on demand to pressure differential resetting --- stirring adjusting ratchet makes finger be directed to required pressure difference, so that the pressure differential resetting value of time-delay differential pressure controller can carry out free setting in prescribed limit according to the demand of different refrigeration system compressors.Electronic delay differential pressure controller can protect refrigeration system compressor normal table to run.Because having the function of to realize that node computing, control are minimized control system cost, resource is allowed more reasonably to apply.
Description
Technical field
Differential pressure controller technical field is the utility model is related to, is specially a kind of FSEDT series electronics time-delay differential pressure control
Device.
Background technology
FSED series time-delay differential pressure controllers are a kind of safety switches of oil pressure protection, are exempted from available for protection refrigeration compressor
Pressed through low by Lubricating Oil and damaged.It is it is a kind of automatically control and protect device, its operation principle is to be based on dynamic balance,
Combined by spring, two opposite bellowss and other mechanical parts in arithmetic and control unit, to mechanical signal into
Exported after row operation amplifier：Reach time-delay differential pressure switch value output function demand, system oil pressure difference is controlled.
FSED35T series electronics time-delay differential pressure controller holds accurately, to electronic operation the design considerations of flexible member
Controller associated specifications are accurately bright, the every technology of welding grasped skilled.The time-delay differential pressure controller produced at present（Fever
Resistance and bimetal leaf）Although it can meet the requirement that most clients control pressure difference at the appointed time, delay switch
The time value of setting is influenced by ambient temperature greatly in output valve (setting pressure difference/setting time), and the delay adjustments time needs to change
Heating resistor, could complete to cause each refrigeration system compressor to need to develop different time-delay differential pressure controllers, put forward cost
It is high, it is impossible to allow resource more reasonably to apply, so as to cause the market competitiveness not strong.
The content of the invention
（One）The technical problem of solution
Provide a kind of FSEDT series electronics for the function deficiency of existing product, and poor reliability, the utility model and prolong
When differential pressure controller, possess the pressure difference switch amount output in accurate control delay, pressure difference switch value can be adjusted in regulation codomain
Setting, so that the advantages that improving market competition dynamics, its delay time can not accurately be controlled by solving, and cause the market competitiveness not
The problem of strong.
（Two）Technical solution
To achieve the above object, the utility model provides following technical solution：A kind of FSEDT series electronics time-delay differential pressure control
Device processed, including cage assembly, the side of the cage assembly pass through the 6th cross recess button-headed screw and the 7th cross recess half
Cheese head screw is fixedly connected with time delay module assembly, and the top of the cage assembly is fixedly connected with connecting plate by fixed block,
The inner cavity of the connecting plate side, which is run through, is connected with the first cross recess button-headed screw, the first cross recess button-headed screw
Bottom extends through connection fixing block and cage assembly and extends to the inner cavity of cage assembly, and the connecting plate is away from the 10th
The inner cavity of word groove button-headed screw side, which is run through, is connected with the second cross recess button-headed screw, the second cross recess cup head spiral shell
The bottom of nail is run through and extends to the inner cavity of cage assembly, and the top of the connecting plate and the bottom of cage assembly pass through
Three cross recess button-headed screws are fixedly connected with gas tank component, and the top of connecting plate and the bottom of cage assembly and gas tank portion
Part junction is both provided with gas tank gasket, and the outside screw of two gas tank components is socketed with copper nut；
Thread groove inner thread at the top of the cage assembly is socketed with adjusting screw, the top of the adjusting screw outer wall
Adjustment disk is fixedly connected with, base is fixedly connected with the top of the adjustment disk, and base is located at the bottom of gas tank component, it is described
The bottom that the bottom of base is connected with mandril A, the mandril A is connected with mandril B, the bottom of the mandril A and mandril B
Bottom be fixedly connected with pressure difference and adjust spring, one end that the pressure difference adjusts spring is fixedly connected on by spring collar
The inside of cage assembly, is fixedly connected with lever plate on the outside of the bottom of the mandril B, the bottom of the cage assembly is by opening
Mouth baffle ring is connected with long lever pin, and side of the long lever pins position in the middle part of the bottom of lever plate, the lever plate is fixed
Fine motion bar is connected with, pressure indication is fixedly connected with the outside of the top of the fine motion bar, the inside of the cage assembly is fixed
Limit switches are connected, and limit switch is located at the top of fine motion bar；
The inside of the cage assembly is fixedly connected with low pressure pulling plate, and the side of the low pressure pulling plate passes through the 4th the 50th
Word groove button-headed screw is fixedly connected with scale-board, and scale-board is located at the front surface of pressure indication, and the one of the cage assembly
Side is fixed and is offered into coil, the bottom that time delay module assembly is located at into coil.
Preferably, the side of the time delay module assembly is provided with outer cover, and the outer cover passes through cross recess button-headed screw
The side of cage assembly is fixedly connected on, the size of the outer cover is adapted with the size of cage assembly.
Preferably, the quantity of the 3rd cross recess button-headed screw is that the 3rd cross recess button-headed screw is uniform
It is distributed in the outer surface of two gas tank components.
Preferably, the gas tank gasket is circular ring shape, and the size of gas tank gasket is adapted with the size of gas tank component.
Preferably, the equal length of the mandril B and mandril A, and the length of mandril B adds the length of mandril A more than outer
The length of housing assy.
Preferably, the front surface of the cage assembly is fixedly connected with cup type packing ring, and it is total that the cup type packing ring is used for shell
Into ground connection.
Preferably, the hand of spiral of the adjusting screw is identical with the hand of spiral of mandril A.
（Three）Beneficial effect
Compared with prior art, the utility model provides a kind of FSEDT series electronics time-delay differential pressure controller, possess with
Lower effect：
1st, FSEDT series electronic time-delay differential pressure controllers, by between adjusting screw, adjustment disk, mandril A and base
Cooperation, rotating adjustment disk just can change the position of base, so as to change the pressure set points of time-delay differential pressure controller, make delay
The pressure set points of differential pressure controller can be modified according to the demand of different refrigeration system compressors, make time-delay differential pressure control
Device can protect the operation of the normal table of all kinds of refrigeration system compressors, also be minimized cost, so as to allow resource more
Rational application.
2nd, the FSEDT series electronic time-delay differential pressure controllers, pass through gas tank component, fixed block, connecting plate, the second cross recess
Cooperation between button-headed screw and the 3rd cross recess button-headed screw, increases the space that adjustment disk moves up and down, so that
It can will increase in the range of the change of the pressure set points of time-delay differential pressure controller, time-delay differential pressure controller is protected more
Different types of refrigeration system compressor, lifts the usable scope of time-delay differential pressure controller, so as to lift time-delay differential pressure control
The market competitiveness of device.
Brief description of the drawings
Fig. 1 be the utility model proposes a kind of FSEDT series electronics time-delay differential pressure controller positive structure diagram；
Fig. 2 be the utility model proposes a kind of FSEDT series electronics time-delay differential pressure controller side structure schematic view.
In figure：1 cage assembly, 2 time delay module assemblies, 3 outer covers, 4 lever plates, 5 pressure differences adjust spring, 6 gas tank components, 7
Spring collar, 8 adjusting screws, 9 adjustment disks, 10 fixed blocks, 11 pressure indications, 12 scale-boards, 13 mandril B, 14 mandril A, 15
Cup type packing ring, 16 bases, 17 connecting plates, 18 gas tank gaskets, 19 copper nuts, 20 low pressure pulling plates, 21 are into coil, 22 long levers
Pin, 23 split washers, 24 first cross recess button-headed screws, 25 second cross recess button-headed screws, 26 the 3rd cross recess semicircles
Head screw, 27 the 4th cross recess button-headed screws, 28 the 5th cross recess button-headed screws, 29 the 6th cross recess button-headed screws,
30 the 7th cross recess button-headed screws, 31 fine motion bars, 32 limit switches.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained, shall fall within the protection scope of the present invention.
Please refer to Fig.1-2, a kind of FSEDT series electronics time-delay differential pressure controller, including cage assembly 1, cage assembly 1
Side is fixedly connected with and is prolonged by the 6th cross recess button-headed screw 29 and the 7th the 5th the 5th cross recess button-headed screw 28
When module assembly 2, the built-in component of time delay module assembly 2 sets the precision and reliability for improving existing product delay time, from
And ensure by control system safety and normal operation, delay time is to utilize the soft of electronic delay mould PIC single chip microcomputer in the block
Part control, delay time can arbitrarily be set according to customer demand, and delay time is accurate, and the side of time delay module assembly 2 is set
Outer cover 3 is equipped with, sets outer cover 3 to be used for protecting time delay module assembly 2 without damage, improves the use of time delay module assembly 2
Service life, outer cover 3 are fixedly connected on the side of cage assembly 1 by the 5th cross recess button-headed screw 28, the size of outer cover 3 with it is outer
The size of housing assy 1 is adapted, and passes through 28 connection side person who happens to be on hand for an errand of the 5th cross recess button-headed screw between outer cover 3 and cage assembly 1
Removing and installing to outer cover 3, make worker repair or replace time delay module assembly 2 when enhanced convenience it is laborsaving,
The front surface of cage assembly 1 is fixedly connected with cup type packing ring 15, and cup type packing ring 15 is located at the bottom of time delay module assembly 2, sets
Cup type packing ring 15 makes that some distances can be stayed between outer cover 3 and cage assembly 1, so can be total to avoid outer cover 3 and time delay module
Directly contacted into 2, prevent worker from damaging time delay module assembly 2 when closing outer cover 3 after repairing, improve time delay module assembly
2 service life, reduces the consumption of time delay module assembly 2, is more reasonably utilized resource, the top of cage assembly 1
Portion is fixedly connected with connecting plate 17 by fixed block 10, and the inner cavity of 17 side of connecting plate, which is run through, is connected with the first cross recess cup head
Screw 24, the bottom of the first cross recess button-headed screw 24 extend through connection fixing block 10 and cage assembly 1 and extend to
The inner cavity of cage assembly 1, inner cavity of the connecting plate 17 away from 24 side of the first cross recess button-headed screw, which is run through, is connected with the 20th
Word groove button-headed screw 25, the bottom of the second cross recess button-headed screw 25 are run through and extend to the inner cavity of cage assembly 1, pass through
Gas tank component 6, fixed block 10, connecting plate 17, the second cross recess button-headed screw 25 and the 3rd cross recess button-headed screw 26
Between cooperation, the space that adjustment disk 9 moves up and down is increased, so as to by the pressure set points of time-delay differential pressure controller
Increase in the range of change, time-delay differential pressure controller is protected more different types of refrigeration system compressors, lifting delay
The usable scope of differential pressure controller, so as to lift the market competitiveness of time-delay differential pressure controller, the top of connecting plate 17 and
The bottom of cage assembly 1 is fixedly connected with gas tank component 6, the 3rd cross recess semicircle by the 3rd cross recess button-headed screw 26
The quantity of head screw 26 is eight, and eight the 3rd cross recess button-headed screws 26 are evenly distributed on the appearance of two gas tank components 6
Face, each gas tank component 6 are fixed with the 3rd cross recess button-headed screw 26, so strengthen the steady of gas tank component 6
It is qualitative, make gas tank component 6 fix it is even closer, gas tank component 6 will not fall off at work, and the top of connecting plate 17 and
The bottom of cage assembly 1 and 6 junction of gas tank component are both provided with gas tank gasket 18, and gas tank gasket 18 is circular ring shape, and gas tank
The size of gasket 18 is adapted with the size of gas tank component 6, sets gas tank gasket 18 to ensure cage assembly 1 and gas tank component
Leakproofness between 6, ensure between cage assembly 1 and gas tank component 6 will not gas leakage, when improving time-delay differential pressure controller work
Stability and accuracy, it is ensured that by control system safety and normal operation, the outside screw socket of two gas tank components 6
There is copper nut 19, set copper nut 19 to facilitate the installation of time-delay differential pressure controller.
The thread groove inner thread at the top of cage assembly 1 is socketed with adjusting screw 8, and the top of 8 outer wall of adjusting screw is fixed
Adjustment disk 9 is connected with, so rotation adjustment disk 9 just can control to adjust moves down on the base 16 at 1 top of the drive of screw 8 cage assembly
It is dynamic, change the elastic force between the base 16 at the top of cage assembly 1 and the top of cage assembly 1, change movement and move up mandril A14
With the pressure needed for mandril B13 so that achieve the purpose that change time-delay differential pressure controller pressure set points, the top of adjustment disk 9
Portion is fixedly connected with base 16, and base 16 is located at the bottom of gas tank component 6, and the bottom of base 16 is connected with mandril A14,
The hand of spiral of adjusting screw 8 is identical with the hand of spiral of mandril A14, can so ensure adjusting screw 8 drive base 16 to
When upper mobile, mandril A14 may remain in place put it is motionless, it is ensured that be connected together all the time between mandril A14 and mandril B13,
By the cooperation between adjusting screw 8, adjustment disk 9, mandril A14 and base 16, rotating adjustment disk 9 just can change base 16
Position, so as to change the pressure set points of time-delay differential pressure controller, allow the pressure set points of time-delay differential pressure controller according to
The demand of different refrigeration system compressors is modified, and time-delay differential pressure controller is protected all kinds of refrigeration system compressors
The operation of normal table, is also minimized cost, so as to allow resource more reasonably to apply, the bottom of mandril A14 is connected with
The equal length of mandril B13, mandril B13 and mandril A14, and the length of mandril B13 is total more than shell plus the length of mandril A14
Into 1 length, it is such setting ensure that time-delay differential pressure controller work when stability, make up and down two footstocks 16 all the time with
Gas tank component 6 is connected together, it is ensured that the accuracy of time-delay differential pressure controller, the bottom of mandril A14 and the bottom of mandril B13
Pressure difference has been fixedly connected with it and has adjusted spring 5, pressure difference adjusts one end of spring 5, and by spring collar 7 to be fixedly connected on shell total
Into 1 inside, lever plate 4 is fixedly connected with the outside of the bottom of mandril B13, the bottom of cage assembly 1 passes through split washer 23
Long lever pin 22 is connected with, long lever pin 22 is used for the position of truck dead lever plate 4, prevents lever plate 4 from moving down excessively,
Ensure the stability of time-delay differential pressure controller, and long lever pin 22 is located at the bottom of lever plate 4, the side at the middle part of lever plate 4 is consolidated
Surely fine motion bar 31 is connected with, so setting fine motion bar 31, and then lever plate 4 moves up and down, the outside at the top of fine motion bar 31
Pressure indication 11 is fixedly connected with, pressure indication 11 is convenient for people to observe current pressure, also allows for when worker repairs to delay
The judgement of differential pressure controller trouble point, the inside of cage assembly 1 is fixedly connected with limit switches 32, and limit switch 32 is positioned at micro-
The top of lever 31, such setting, on the gas tank component 6 that two act on opposite, two different pressures its differences are produced
Raw power utilizes spring balancing, when reaching setting value in setting delay time, due to leverage, drives fine motion bar 31 dynamic
Make, the limit switch 32 pressed disconnects, and the relay of electronic delay module is failure to actuate, control loop normal work, as setting is prolonged
When time internal pressure difference when not reaching setting value, fine motion bar 31 is failure to actuate, always on by pressure limit switch 32, sets delay time
To the actuating of relay of rear electronic delay module, normally opened terminal is connected, and normally closed terminal disconnects, and cuts off control loop below, at the same time
The bright alarm of red LED lamp, so as to play a protective role to compressor, electronic delay differential pressure controller is mainly used for controlling compressor
The pressure difference change of lubricating oil oil pressure, when oil pressure difference is less than setting value, after delay time arrives, passes through the conversion hysteria contact of relay
The disconnection of control output circuit, so as to protect compressor too low from oil pressure and damage.
The inside of cage assembly assembly 1 is fixedly connected with low pressure pulling plate 20, and the side of low pressure pulling plate 20 passes through cross recess half
Cheese head screw 27 is fixedly connected with scale-board 12, the cooperation of scale-board 12 and pressure indication 11, easy to observation of the people to pressure,
And scale-board 12 is located at the front surface of pressure indication 11, the side of cage assembly 1, which is fixed, to be offered into coil 21, into coil 21
In the bottom of time delay module assembly 2.
The electric elements occurred in this article are electrically connected with extraneous main controller and 220V alternating currents, and main controller can be meter
Calculation machine etc. plays the conventionally known equipment of control.
In conclusion the FSEDT series electronic time-delay differential pressure controllers, pass through adjusting screw 8, adjustment disk 9, mandril A14
And the cooperation between base 16, rotating adjustment disk 9 just can change the position of base 16, so as to change time-delay differential pressure controller
Pressure set points, allow the pressure set points of time-delay differential pressure controller to be changed according to the demand of different refrigeration system compressors
It is dynamic, time-delay differential pressure controller is protected the operation of the normal table of all kinds of refrigeration system compressors, also cost is dropped
It is low, so as to allow resource more reasonably to apply, pass through gas tank component 6, fixed block 10, connecting plate 17, the second cross recess cup head
Cooperation between 25 and the 3rd cross recess button-headed screw 26 of screw, increases the space that adjustment disk 9 moves up and down, so as to
Will increase in the range of the change of the pressure set points of time-delay differential pressure controller, time-delay differential pressure controller is set to protect more not
The refrigeration system compressor of same type, lifts the usable scope of time-delay differential pressure controller, so as to lift time-delay differential pressure controller
The market competitiveness.
It should be noted that herein, such as and or the like relational terms be used merely to an entity or behaviour
Make with another entity or operation distinguish, without necessarily requiring or implying these entities or operate between there are it is any this
Kind actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to nonexcludability
Include so that process, method, article or equipment including a series of elements not only include those key elements, but also
Including other elements that are not explicitly listed, or further include for this process, method, article or equipment it is intrinsic will
Element.
While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from the principle of the utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (7)
1. a kind of FSEDT series electronics time-delay differential pressure controller, including cage assembly（1）, it is characterised in that：The cage assembly
（1）Side pass through the 6th cross recess button-headed screw（29）And the 7th cross recess button-headed screw（30）It is fixedly connected with and prolongs
When module assembly（2）, the cage assembly（1）Top pass through fixed block（10）It is fixedly connected with connecting plate（17）, the company
Fishplate bar（17）The inner cavity of side, which is run through, is connected with the first cross recess button-headed screw（24）, the first cross recess button-headed screw
（24）Bottom extend through connection fixing block（10）And cage assembly（1）And extend to cage assembly（1）Inner cavity, it is described
Connecting plate（17）Away from the first cross recess button-headed screw（24）The inner cavity of side, which is run through, is connected with the second cross recess cup head spiral shell
Nail（25）, the second cross recess button-headed screw（25）Bottom run through and extend to cage assembly（1）Inner cavity, the company
Fishplate bar（17）Top and cage assembly（1）Bottom pass through the 3rd cross recess button-headed screw（26）It is fixedly connected with gas
Box part（6）, and connecting plate（17）Top and cage assembly（1）Bottom and gas tank component（6）Junction is both provided with
Gas tank gasket（18）, two gas tank components（6）Outside screw be socketed with copper nut（19）；
The cage assembly（1）The thread groove inner thread at top is socketed with adjusting screw（8）, the adjusting screw（8）Outer wall
Top be fixedly connected with adjustment disk（9）, the adjustment disk（9）Top be fixedly connected with base（16）, and base（16）Position
In gas tank component（6）Bottom, the base（16）Bottom be connected with mandril A（14）, the mandril A（14）Bottom
It is connected with mandril B（13）, the mandril A（14）Bottom and mandril B（13）Bottom be fixedly connected with pressure difference adjust bullet
Spring（5）, the pressure difference adjusting spring（5）One end pass through spring collar（7）It is fixedly connected on cage assembly（1）Inside,
The mandril B（13）Bottom on the outside of be fixedly connected with lever plate（4）, the cage assembly（1）Bottom kept off by opening
Circle（23）It is connected with long lever pin（22）, and long lever pin（22）Positioned at lever plate（4）Bottom, the lever plate（4）
The side at middle part is fixedly connected with fine motion bar（31）, the fine motion bar（31）Top on the outside of be fixedly connected with pressure indication
（11）, the cage assembly（1）Inside be fixedly connected with limit switches（32）, and limit switch（32）Positioned at fine motion bar（31）
Top；
The cage assembly（1）Inside be fixedly connected with low pressure pulling plate（20）, the low pressure pulling plate（20）Side pass through
4 the 5th cross recess button-headed screws（28）It is fixedly connected with scale-board（12）, and scale-board（12）Positioned at pressure indication（11）'s
Front surface, the cage assembly（1）Side fix offer into coil（21）, it is described into coil（21）It is total positioned at time delay module
Into（2）Bottom.
A kind of 2. FSEDT series electronics time-delay differential pressure controller according to claim 1, it is characterised in that：The delay
Module assembly（2）Side be provided with outer cover（3）, the outer cover（3）Pass through cross recess button-headed screw（28）It is fixedly connected on
Cage assembly（1）Side, the outer cover（3）Size and cage assembly（1）Size be adapted.
A kind of 3. FSEDT series electronics time-delay differential pressure controller according to claim 1, it is characterised in that：Described 3rd
Cross recess button-headed screw（26）Quantity be the 3rd cross recess button-headed screw（26）It is evenly distributed on two gas tank portions
Part（6）Outer surface.
A kind of 4. FSEDT series electronics time-delay differential pressure controller according to claim 1, it is characterised in that：The gas tank
Gasket（18）For circular ring shape, and gas tank gasket（18）Size and gas tank component（6）Size be adapted.
A kind of 5. FSEDT series electronics time-delay differential pressure controller according to claim 1, it is characterised in that：The mandril B
（13）With mandril A（14）Equal length, and mandril B（13）Length add mandril A（14）Length be more than cage assembly（1）
Length.
A kind of 6. FSEDT series electronics time-delay differential pressure controller according to claim 1, it is characterised in that：The shell
Assembly（1）Front surface be fixedly connected with cup type packing ring（15）, the cup type packing ring（15）It is grounded for cage assembly.
A kind of 7. FSEDT series electronics time-delay differential pressure controller according to claim 1, it is characterised in that：The adjusting
Screw（8）Hand of spiral and mandril A（14）Hand of spiral it is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721052398.9U CN207261252U (en) | 2017-08-22 | 2017-08-22 | A kind of FSEDT series electronics time-delay differential pressure controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721052398.9U CN207261252U (en) | 2017-08-22 | 2017-08-22 | A kind of FSEDT series electronics time-delay differential pressure controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207261252U true CN207261252U (en) | 2018-04-20 |
Family
ID=61925729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721052398.9U Expired - Fee Related CN207261252U (en) | 2017-08-22 | 2017-08-22 | A kind of FSEDT series electronics time-delay differential pressure controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207261252U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387418A (en) * | 2017-08-22 | 2017-11-24 | 上海奉申制冷控制器股份有限公司 | A kind of FSEDT series electronics time-delay differential pressure controller |
-
2017
- 2017-08-22 CN CN201721052398.9U patent/CN207261252U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387418A (en) * | 2017-08-22 | 2017-11-24 | 上海奉申制冷控制器股份有限公司 | A kind of FSEDT series electronics time-delay differential pressure controller |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180420 |
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| CF01 | Termination of patent right due to non-payment of annual fee |