CN108953126A - One kind exempting from frequent starting, high-power electronic switch - Google Patents
One kind exempting from frequent starting, high-power electronic switch Download PDFInfo
- Publication number
- CN108953126A CN108953126A CN201811023753.9A CN201811023753A CN108953126A CN 108953126 A CN108953126 A CN 108953126A CN 201811023753 A CN201811023753 A CN 201811023753A CN 108953126 A CN108953126 A CN 108953126A
- Authority
- CN
- China
- Prior art keywords
- electronic switch
- power electronic
- inlet attack
- frequent starting
- outlet
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 238000005259 measurement Methods 0.000 claims abstract description 14
- 230000009471 action Effects 0.000 claims abstract description 8
- 230000005484 gravity Effects 0.000 claims abstract description 7
- 230000008878 coupling Effects 0.000 claims abstract description 4
- 238000010168 coupling process Methods 0.000 claims abstract description 4
- 238000005859 coupling reaction Methods 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 claims abstract description 4
- 230000033228 biological regulation Effects 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 3
- 230000006698 induction Effects 0.000 description 8
- 238000001514 detection method Methods 0.000 description 5
- 230000001939 inductive effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
Abstract
The present invention relates to switching technique fields, it is specifically a kind of to exempt from frequent starting, high-power electronic switch, cap including shell and snapping on the shell, the downside of shell is equipped with inlet attack, upside is equipped with outlet connection, inlet attack is arranged in a staggered manner with outlet connection, and it is connected between inlet attack and discharge coupling by the way that ALT-CH alternate channel is laminated, flow measurement area is equipped in inlet attack, it is laminated above ALT-CH alternate channel and is equipped with check-valves, check-valves blocks inlet attack under the effect of gravity, it moves up under the action of water pressure, it is connected to inlet attack with stacking ALT-CH alternate channel, wiring board is fixedly installed on the inside of cap, pressure sensor for detecting outlet pressure is installed on the side wall of outlet connection, pressure sensor and circuit board electrical connection.The present invention has the advantages that reducing the probability of water pump frequent starting, ALT-CH alternate channel is laminated by setting, the inlet and outlet of tube body have 8mm drop, it is ensured that the flow of water inlet and the flow difference of water outlet are less than 0.1m3/H。
Description
Technical field
The present invention relates to switching technique field, especially one kind to exempt from frequent starting, high-power electronic switch.
Background technique
Traditional water pump electronic switch is designed using tank type, and water outlet and water inlet are designed without drop, although water outlet
Bore can be made greatly, but the bore of water inlet is limited, therefore whole aqueous can be a greater impact.
Relay can generate higher voltage when being used for inductive load, in relay disconnection moment, make relay contacts
Spark Discharges are generated, relay life is substantially reduced, so the design power of usually water pump controller is often relay
The half of rated power is even lower, this is also universal lower one of the reason of electronic switch power.
In water-aspirator pressure control system, the detection of flow is vital a part.Although technical grade flow sensor
Detection is accurate, but it is expensive, and the biggish characteristic of volume limits it and cannot be used in small pressure control electronic switch.Institute
With the flow detection of existing electron pressure switch still with tongue tube induction type and two kinds of Hall sensor induction type induction based on.
Meanwhile in actual use, malfunction may be generated by external of short duration water flow fluctuation or signal interference, water pump frequency
Numerous starting has larger impact to the service life of water pump.
Summary of the invention
The purpose of the present invention is to overcome the shortcomings of the existing technology, provides one kind and exempts from frequent starting, high-power electronic switch.
The purpose of the present invention is achieved through the following technical solutions: one kind exempting from frequent starting, high-power electronic switch, including
The cap of shell and snapping on the shell, the downside of the shell are equipped with inlet attack, and upside is equipped with outlet connection, the entrance
Connector is arranged in a staggered manner with outlet connection, and is connected between the inlet attack and discharge coupling by the way that ALT-CH alternate channel is laminated, described
It is equipped with flow measurement area in inlet attack, is equipped with check-valves above the stacking ALT-CH alternate channel, the check-valves blocks up under the effect of gravity
Firmly inlet attack moves up under the action of water pressure, is connected to inlet attack with stacking ALT-CH alternate channel, the cap
Inside is fixedly installed with wiring board, and the pressure sensor for detecting outlet pressure is equipped on the side wall of the outlet connection,
The pressure sensor and circuit board electrical connection.
Further, pressure gauge is also equipped on the lateral wall of the outlet connection, the pressure gauge is located at stacking conversion
The exit position in channel.
Further, the check-valves includes valve body, valve head and magnet, and the head of the valve body is equipped with hemispheric valve
The tail inner side of head, the valve body is fixed with magnet.
Further, be additionally provided with tongue tube on the wiring board, when valve head blocks inlet attack, the magnet with it is described
Tongue tube exchange premium, when check-valves moves up under the action of water pressure, the magnet is far from the tongue tube.
Further, the check-valves further includes clump weight, and the clump weight is fixed on the inside of valve body.
Further, the pressure sensor includes sensor base, switch base, strain diaphragm, jacking block, spring and pressure regulation
The lower end of screw, the sensor base is fixed on the side wall of outlet connection by attachment base, the sensor base it is upper
End inside is fixed with switch base, fixed between the lower end surface of the switch base and the upper end inner lower edge face of the sensor base
There is strain diaphragm, the lower end of the sensor base is provided with tracting pressuring hole, and one end of the tracting pressuring hole is connected to outlet connection, another
Rectify to strain diaphragm, the jacking block is fitted to the inside of switch base, and the inside of the jacking block is equipped with spring, the spring
Lower end be fixed in the inside bottom surface of jacking block, upper end is fixedly connected with top plate, and the top of the voltage regulation screw and switch base is logical
It crosses and is threadedly engaged connection, and the lower end of the voltage regulation screw is connected on top plate, on the lower end outer wall of the sensor base also
It is cased with sealing ring, is tightly connected between the lower end outer wall of the sensor base and the side wall of outlet connection by sealing ring.
Further, adjustment hole is provided on the cap, the adjustment hole is aligned with the voltage regulation screw, in the adjusting
Plug is connected in hole.
Further, the length a in the flow measurement area is 16~20mm.
Further, the inlet attack and outlet connection are staggered drop height b as 6~10mm.
Further, RC arc-suppression circuit is additionally provided on the wiring board.
The invention has the following advantages that
1, electronic switch of the invention can carry 2.2kW motor device below, and load current can reach 25A, perception
Load current can reach 32A；Traditional electronic switch carries 1.1kW motor device below, load current 16A.
2, the present invention has 8mm drop by setting stacking ALT-CH alternate channel, the inlet and outlet of tube body, it is ensured that water inlet
Flow and water outlet flow difference be less than 0.1m3/ H, pressure are less than 0.2Bar.
3, the present invention by dexterously increase flow measurement area length, guarantee tongue tube be detached from magnet induction when check-valves still
So inside flow measurement area, the detection of flow is accurately controlled, it disconnects flow very little again while tongue tube break distance is big, together
When increase software filtering routine in a program, filter out tongue tube vibration frequency be greater than 2Hz fluctuation signal, combination pressure sensor
Induction, malfunction MCU will not because of external of short duration water flow fluctuation or signal interference, greatly reduce water pump frequency
The probability of numerous starting.It does not need cooperation pressurized tank or large area spring buffer mechanism uses, greatly reduce manufacturing cost.
4, setting increases RC arc-suppression circuit to the present invention in the circuit board, the electricity when relay disconnects, on inductive load
Stream is absorbed by RC absorbing circuit, and the energy of inductive load storage is not consumed by spark discharge, but passes through RC absorbing circuit
Consumption, thus substantially increases the service life of relay, while can be used in high-power control system of water pump.
Detailed description of the invention
Fig. 1 is schematic perspective view of the invention；
Fig. 2 is overlooking structure diagram of the invention；
Fig. 3 is in Fig. 2 along A-A schematic cross-sectional view；
Fig. 4 is in Fig. 2 along B-B schematic cross-sectional view；
Fig. 5 is the structural schematic diagram of stacking ALT-CH alternate channel of the invention between outlet connection and inlet attack；
Fig. 6 is the schematic perspective view of check-valves of the present invention；
Fig. 7 is the schematic cross-sectional view of check-valves of the present invention；
Fig. 8 is the schematic perspective view of pressure sensor of the present invention；
Fig. 9 is the schematic cross-sectional view of pressure sensor of the present invention；
In figure: 1- shell, 2- cap, 3- inlet attack, 4- outlet connection, 5- wiring board, 6- check-valves, 7- pressure sensing
ALT-CH alternate channel, 9- pressure gauge, 10- tongue tube, 11- valve body, 12- valve head, 13- magnet, 14- clump weight, 15- biography is laminated in device, 8-
Sensor pedestal, 16- attachment base, 17- switch base, 18- strain diaphragm, 19- jacking block, 20- spring, 21- top plate, 22- voltage regulation screw,
23- sealing ring, 24- tracting pressuring hole, 25- adjustment hole, 26- plug.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing, but protection scope of the present invention is not limited to following institute
It states.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, one kind exempting from frequent starting, high-power electronic switch, including 1 He of shell
The cap 2 on shell 1 is snapped onto, the downside of the shell 1 is equipped with inlet attack 3, and upside is equipped with outlet connection 4, the entrance
Connector 3 is arranged in a staggered manner with outlet connection 4, and is connected between the inlet attack 3 and discharge coupling 4 by the way that ALT-CH alternate channel 8 is laminated,
It is equipped with flow measurement area in the inlet attack 3, equipped with check-valves 6 above the stacking ALT-CH alternate channel 8, the check-valves 6 is in gravity
Inlet attack 3 is blocked under effect, is moved up under the action of water pressure, and inlet attack 3 and stacking ALT-CH alternate channel 8 are connected
Logical, the inside of the cap 2 is fixedly installed with wiring board 5, is equipped on the side wall of the outlet connection 4 for detecting outlet pressure
The pressure sensor 7 of power, the pressure sensor 7 are electrically connected with wiring board 5.When water flow is smaller, check-valves 6 is in flow measurement area
Interior, water flow is small by area, and check-valves 6 is big to the resistance of water flow, and lesser water flow can be such that check-valves 6 moves up at this time.
If flow continues to increase at this time, check-valves 6 can be made to be detached from flow measurement region, while entered in stacking ALT-CH alternate channel 8, runner becomes
Width, check-valves 6 become smaller to the resistance of water flow, and influence of the runner to water flow is preferably minimized.
Further, as shown in Figure 1, being also equipped with pressure gauge 9 on the lateral wall of the outlet connection 4, the pressure gauge 9
Positioned at the exit position of stacking ALT-CH alternate channel 8.
Further, as shown in Figure 6 and Figure 7, the check-valves 6 includes valve body 11, valve head 12 and magnet 13, the valve body
11 head is equipped with hemispheric valve head 12, and the tail inner side of the valve body 11 is fixed with magnet 13.
Further, as shown in figure 4, being additionally provided with tongue tube 10 on the wiring board 5, when valve head 12 blocks inlet attack
When 3, the magnet 13 and 10 exchange premium of tongue tube, when check-valves 6 moves up under the action of water pressure, the magnet 13 is far from institute
State tongue tube 10.It is that tongue tube 10 is usually made by two soft magnetic materials, without magnetic when the metal spring leaf contact that disconnects, work as non-return
Valve 6 is when its own gravity drops down onto inlet attack 3 next time, two gold of the magnet 13 in tongue tube 10, tongue tube 10
Belong to reed contact connection, when check-valves 6 moves up under the action of water pressure, magnet 13 is far from tongue tube 10, tongue tube at this time
Two metal spring leaf contacts in 10 disconnect, simultaneously because cleverly increasing the length in flow measurement area in inlet attack 3, guarantee
When being detached from magnet 13 and incuding, for check-valves 6 still inside flow measurement area, the advantages of this structure, is its tongue tube to tongue tube 10
It disconnects flow very little again while 10 break distances are big, while increasing software filtering routine in the program of assist side 5, filters out
10 vibration frequency of tongue tube is greater than the fluctuation signal of 2Hz, and the induction of combination pressure sensor 7 makes the MCU on wiring board 5 will not
It is malfunctioned because of external of short duration water flow fluctuation or signal interference, greatly reduces the probability of water pump frequent starting.
Further, as shown in fig. 7, the check-valves 6 further includes clump weight 14, the clump weight 14 is fixed on valve body 11
Inside thereby increases the gravity of check-valves 6, can promote in a free state, and check-valves 6 returns under its own gravity
It drops down at inlet attack 3, so that inlet attack 3 is blocked, it is relatively reliable.
Further, as shown in Figure 8 and Figure 9, the pressure sensor 7 includes sensor base 15, switch base 17, strain
The lower end of diaphragm 18, jacking block 19, spring 20 and voltage regulation screw 22, the sensor base 15 is fixed on outlet by attachment base 16
On the side wall of connector 4, be fixed with switch base 17 on the inside of the upper end of the sensor base 15, the lower end surface of the switch base 17 with
Strain diaphragm 18 is fixed between the upper end inner lower edge face of the sensor base 15, the lower end of the sensor base 15 is opened
There is tracting pressuring hole 24, one end of the tracting pressuring hole 24 is connected to outlet connection 4, other end face strain diaphragm 18, the jacking block 19
It is fitted to the inside of switch base 17, the inside of the jacking block 19 is equipped with spring 20, and the lower end of the spring 20 is fixed on top
In the inside bottom surface of block 19, upper end is fixedly connected with top plate 21, and the top of the voltage regulation screw 22 and switch base 17 passes through screw thread
It is cooperatively connected, and the lower end of the voltage regulation screw 22 is connected on top plate 21.Hydraulic pressure in outlet connection 4 is acted on through tracting pressuring hole 24
On strain diaphragm 18, strain diaphragm 18 is received after pressure changes, and the resistance value of strain diaphragm 18 changes, and is converted into
Electric signal is transferred to wiring board 5, and then is controlled according to electric signal electronic switch.
Further, as shown in figure 3, for the ease of the voltage regulation screw 22 on adjusting pressure sensor 7, on the cap 2
It is provided with adjustment hole 25, the adjustment hole 25 is aligned with the voltage regulation screw 22, it is connected with plug 26 in the adjustment hole 25, when
When needing to adjust, plug 26 is removed, adjustment hole 25 is passed through with screwdriver, voltage regulation screw 22 can be adjusted, adjusted
Bi Hou fills in plug 26 in adjustment hole 25 again.
Further, as shown in figure 4, the length a in the flow measurement area is 16~20mm, it is preferable that the length in the flow measurement area
Degree a is 18mm, accurately controls the detection of flow, the induction rate of combination pressure sensor, and automatic induction system uses regimen
Condition greatly reduces the frequent starting of system.It does not need cooperation pressurized tank or large area spring buffer mechanism uses, drop significantly
Low manufacturing cost.
Further, as shown in figure 4, the inlet attack 3 and outlet connection 4 are staggered, drop height b is 6~10mm, excellent
Selection of land, the inlet attack 3 are staggered drop height b with outlet connection 4 as 8mm, it is ensured that the flow of water inlet and the stream of water outlet
It measures difference and is less than 0.1m3/ H, pressure are less than 0.2Bar.
Further, RC arc-suppression circuit is additionally provided on the wiring board 5, the basic role principle of RC arc-suppression circuit is
Relay contact both ends are connected in parallel on after R and C are connected in series again, when relay disconnects, the electric current on inductive load is absorbed by RC
Circuit absorbs, and the energy of inductive load storage is not consumed by spark discharge, but is consumed by RC absorbing circuit, thus
Substantially increase the service life of relay.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. one kind exempts from frequent starting, high-power electronic switch, including shell (1) and the cap (2) on shell (1), institute are snapped onto
The downside for stating shell (1) is equipped with inlet attack (3), and upside is equipped with outlet connection (4), it is characterised in that: the inlet attack (3)
It is arranged in a staggered manner with outlet connection (4), and is connected between the inlet attack (3) and discharge coupling (4) by stacking ALT-CH alternate channel (8)
It is logical, it is equipped with flow measurement area in the inlet attack (3), is equipped with check-valves (6) above the stacking ALT-CH alternate channel (8), the non-return
Valve (6) blocks inlet attack (3) under the effect of gravity, moves up under the action of water pressure, finally makes inlet attack (3) and layer
Folded ALT-CH alternate channel (8) are connected to, and are fixedly installed with wiring board (5) on the inside of the cap (2), the side wall of the outlet connection (4)
On pressure sensor (7) for detecting outlet pressure is installed, the pressure sensor (7) is electrically connected with wiring board (5).
2. one kind according to claim 1 exempts from frequent starting, high-power electronic switch, it is characterised in that: the outlet connects
It is also equipped with pressure gauge (9) on the lateral wall of head (4), the pressure gauge (9) is located at the outlet port of stacking ALT-CH alternate channel (8)
Place.
3. one kind according to claim 1 exempts from frequent starting, high-power electronic switch, it is characterised in that: the check-valves
It (6) include valve body (11), valve head (12) and magnet (13), the head of the valve body (11) is equipped with hemispheric valve head (12), institute
The tail inner side for stating valve body (11) is fixed with magnet (13).
4. one kind according to claim 3 exempts from frequent starting, high-power electronic switch, it is characterised in that: the wiring board
(5) tongue tube (10) are additionally provided on, when valve head (12) blocks inlet attack (3), the magnet (13) and the tongue tube
(10) exchange premium, when check-valves (6) moves up under the action of water pressure, the magnet (13) is far from the tongue tube (10).
5. one kind according to claim 3 or 4 exempts from frequent starting, high-power electronic switch, it is characterised in that: the non-return
Valve (6) further includes clump weight (14), and the clump weight (14) is fixed on the inside of valve body (11).
6. one kind according to claim 3 or 4 exempts from frequent starting, high-power electronic switch, it is characterised in that: the pressure
Sensor (7) includes sensor base (15), switch base (17), strain diaphragm (18), jacking block (19), spring (20) and pressure regulation spiral shell
The lower end of silk (22), the sensor base (15) is fixed on the side wall of outlet connection (4) by attachment base (16), the biography
It is fixed with switch base (17) on the inside of the upper end of sensor pedestal (15), the lower end surface of the switch base (17) and the sensor base
(15) it is fixed with strain diaphragm (18) between upper end inner lower edge face, the lower end of the sensor base (15) is provided with tracting pressuring hole
(24), one end of the tracting pressuring hole (24) is connected to outlet connection (4), other end face strain diaphragm (18), the jacking block
(19) it is fitted to the inside of switch base (17), the inside of the jacking block (19) is equipped with spring (20), the spring (20)
Lower end is fixed in the inside bottom surface of jacking block (19), and upper end is fixedly connected with top plate (21), the voltage regulation screw (22) and switch
The top of seat (17) is by being threadedly engaged connection, and the lower end of the voltage regulation screw (22) is connected on top plate (21), the biography
It is also cased on the lower end outer wall of sensor pedestal (15) sealing ring (23), the lower end outer wall of the sensor base (15) connects with outlet
It is tightly connected between the side wall of head (4) by sealing ring (23).
7. one kind according to claim 6 exempts from frequent starting, high-power electronic switch, it is characterised in that: the cap (2)
On be provided with adjustment hole (25), the adjustment hole (25) is aligned with the voltage regulation screw (22), the clamping in the adjustment hole (25)
There are plug (26).
8. one kind according to claim 1 exempts from frequent starting, high-power electronic switch, it is characterised in that: the flow measurement area
Length a be 16~20mm.
9. one kind according to claim 1 exempts from frequent starting, high-power electronic switch, it is characterised in that: the entrance connects
Head (3) and outlet connection (4) are staggered drop height b as 6~10mm.
10. one kind according to claim 1 exempts from frequent starting, high-power electronic switch, it is characterised in that: the wiring board
(5) RC arc-suppression circuit is additionally provided on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811023753.9A CN108953126A (en) | 2018-09-04 | 2018-09-04 | One kind exempting from frequent starting, high-power electronic switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811023753.9A CN108953126A (en) | 2018-09-04 | 2018-09-04 | One kind exempting from frequent starting, high-power electronic switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108953126A true CN108953126A (en) | 2018-12-07 |
Family
ID=64475819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811023753.9A Pending CN108953126A (en) | 2018-09-04 | 2018-09-04 | One kind exempting from frequent starting, high-power electronic switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108953126A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101751045A (en) * | 2008-12-03 | 2010-06-23 | 江苏环力科技发展有限公司 | Electronic pressure controller |
| CN203239546U (en) * | 2013-05-13 | 2013-10-16 | 台州市耀达工贸有限公司 | Electron pressure switch |
| EP2653725A1 (en) * | 2012-04-20 | 2013-10-23 | Trevi Engineering S.r.l. Unipersonale | Apparatus for controlling start-up and shut-down of a pump of a water distribution network |
| CN205533148U (en) * | 2016-03-16 | 2016-08-31 | 绍兴市雪花机电有限公司 | Water pump intelligent control device |
| CN106194681A (en) * | 2016-08-29 | 2016-12-07 | 台州市耀达工贸有限公司 | Novel pressure switchs |
| CN205918573U (en) * | 2016-08-29 | 2017-02-01 | 台州市耀达工贸有限公司 | Take socket pressure switch |
| CN205991007U (en) * | 2016-08-29 | 2017-03-01 | 浙江耀达智能科技股份有限公司 | Novel pressure switchs |
| CN107978485A (en) * | 2017-12-29 | 2018-05-01 | 浙江耀达智能科技股份有限公司 | The eccentric tube assembly of pressure switch |
| CN209164052U (en) * | 2018-09-04 | 2019-07-26 | 浙江耀达智能科技股份有限公司 | One kind exempting from frequent starting, high-power electronic switch |
-
2018
- 2018-09-04 CN CN201811023753.9A patent/CN108953126A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101751045A (en) * | 2008-12-03 | 2010-06-23 | 江苏环力科技发展有限公司 | Electronic pressure controller |
| EP2653725A1 (en) * | 2012-04-20 | 2013-10-23 | Trevi Engineering S.r.l. Unipersonale | Apparatus for controlling start-up and shut-down of a pump of a water distribution network |
| CN203239546U (en) * | 2013-05-13 | 2013-10-16 | 台州市耀达工贸有限公司 | Electron pressure switch |
| CN205533148U (en) * | 2016-03-16 | 2016-08-31 | 绍兴市雪花机电有限公司 | Water pump intelligent control device |
| CN106194681A (en) * | 2016-08-29 | 2016-12-07 | 台州市耀达工贸有限公司 | Novel pressure switchs |
| CN205918573U (en) * | 2016-08-29 | 2017-02-01 | 台州市耀达工贸有限公司 | Take socket pressure switch |
| CN205991007U (en) * | 2016-08-29 | 2017-03-01 | 浙江耀达智能科技股份有限公司 | Novel pressure switchs |
| CN107978485A (en) * | 2017-12-29 | 2018-05-01 | 浙江耀达智能科技股份有限公司 | The eccentric tube assembly of pressure switch |
| CN209164052U (en) * | 2018-09-04 | 2019-07-26 | 浙江耀达智能科技股份有限公司 | One kind exempting from frequent starting, high-power electronic switch |
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