CN103306991B - Submersible pump automatic control switch device - Google Patents
Submersible pump automatic control switch device Download PDFInfo
- Publication number
- CN103306991B CN103306991B CN201310214828.2A CN201310214828A CN103306991B CN 103306991 B CN103306991 B CN 103306991B CN 201310214828 A CN201310214828 A CN 201310214828A CN 103306991 B CN103306991 B CN 103306991B
- Authority
- CN
- China
- Prior art keywords
- control switch
- water
- switch
- power supply
- electromagnetic
- 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.)
- Active
Links
Landscapes
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The invention discloses a kind of submersible pump automatic control switch device controlled for pump switch, comprise power supply, pump motor and control mechanism, described power supply is connected with pump motor, described control mechanism comprises lower level control switch for water, control switch and Electromagnetic Control drive unit, control switch is connected between power supply and pump motor, and the coils connected in series of described lower level control switch for water and Electromagnetic Control drive unit is between the both positive and negative polarity of power supply.The submersible pump automatic control switch device that the present invention obtains, utilizes SEA LEVEL VARIATION control switch to close, thus realizes automatically controlled water pump and open or stop, thus makes overall structure simply, truly achieve the function of Automated condtrol.
Description
Technical field
The present invention relates to a kind of control gear of water pump, particularly submersible pump automatic control switch device.
Background technique
Submersible pump is that foundation ditch deep-cuts one of the most frequently used equipment of engineering construction precipitation with other, in its using process, often run into following situation: when water level is positioned at below lowest water level line, draw water if water pump remains in operation, the pump housing will because of idle running heating, finally cause burning pump, and jeopardize the safety of foundation pit construction, in order to avoid burning pump, engineering often will be equipped with special nurse personnel, once water pump demand operate large while, it is just unable to do what one wishes that workman monitors multiple water pump simultaneously, need undoubtedly to increase artificial amount, improve the dynamics of operation, therefore design a can automatic control switch just particularly important.
Summary of the invention
The object of the invention is in order to solve above-mentioned the deficiencies in the prior art provide a kind of simple to operate, the submersible pump automatic control switch device that switch controls automatically can be realized.
To achieve these goals, submersible pump automatic control switch device designed by the present invention, comprise power supply, pump motor and control mechanism, described power supply is connected with pump motor, described control mechanism comprises lower level control switch for water, control switch and Electromagnetic Control drive unit, control switch is connected between power supply and pump motor, and the coils connected in series of described lower level control switch for water and Electromagnetic Control drive unit is between the both positive and negative polarity of power supply.
In order to play auto-lock function, circuit structure can be made simple, described control switch is as upper level control switch for water, and described upper level control switch for water coordinates with Electromagnetic Control drive unit and locks.
In order to make circuit structure more simple, the circuit of described lower level control switch for water and the coils connected in series of Electromagnetic Control drive unit is also in series with the first control power supply.
In order to overall structure is simple, described Electromagnetic Control drive unit is the electromagnetic relay of Single switch, and the switch of described electromagnetic relay is as control switch, the first control power supply and lower level control switch for water is electrically connected with between described Electromagnetic Control drive unit and power positive cathode, and first one of them input end controlling power supply is connected on the switch of electromagnetic relay and the public connecting end of pump motor, is also electrically connected with the second control power supply and upper level control switch for water between described Electromagnetic Control drive unit and power positive cathode.
In order to overall structure is simple, described control switch is the switch of band Electromagnetic Control function.
In order to overall structure is simple, described Electromagnetic Control drive unit is the electromagnetic relay of biswitch, one of them switch in Electromagnetic Control drive unit is as control switch, and lower level control switch for water one end is electrically connected with coil one end of Electromagnetic Control drive unit after connecting with another switch of Electromagnetic Control drive unit, and the coil common port of connecting with another switch of Electromagnetic Control drive unit is also electrically connected with upper level control switch for water simultaneously, and the lower level control switch for water the other end is electrically connected with the first control power supply, and be connected electrically between the both positive and negative polarity of power supply by the first two input ends controlling power supply.
In order to make integrated circuit safer, described Electromagnetic Control drive unit comprises the electromagnetic relay of two Single switch, the switch of one of them electromagnetic relay is serially connected between power supply and pump motor as control switch, and after the coils from parallel connection of coils of described two electromagnetic relays, be electrically connected with level control switch for water and first between one end and the both positive and negative polarity of power supply and control power supply, the switch of another electromagnetic relay is connected in series with the first output terminal controlling power supply by lower level control switch for water.
The submersible pump automatic control switch device that the present invention obtains, utilizes SEA LEVEL VARIATION control switch to close, thus realizes automatically controlled water pump and open or stop, thus makes overall structure simply, truly achieve the function of Automated condtrol.
Accompanying drawing explanation
Fig. 1 is the electrical block diagram of embodiment 1;
Fig. 2 is the electrical block diagram of embodiment 2;
Fig. 3 is the electrical block diagram of embodiment 3;
Fig. 4 is the electrical block diagram of embodiment 4;
Fig. 5 is the electrical block diagram of embodiment 5;
Fig. 6 is the electrical block diagram of embodiment 6;
Fig. 7 is the electrical block diagram of embodiment 7;
Fig. 8 is the electrical block diagram of embodiment 8.
In figure: power supply 1, pump motor 2, lower level control switch for water 3, control switch 4, Electromagnetic Control drive unit 6, first control power supply 7, second and control power supply 8, upper level control switch for water 9.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
Embodiment 1:
As shown in Figure 1, the submersible pump automatic control switch device that the present embodiment provides, comprise power supply 1, pump motor 2 and control mechanism, described power supply 1 is connected with pump motor 2, described control mechanism comprises lower level control switch for water 3, control switch 4 and Electromagnetic Control drive unit 6, control switch 4 is connected between power supply 1 and pump motor 2, and the coils connected in series of described lower level control switch for water 3 and Electromagnetic Control drive unit 6 is between the both positive and negative polarity of power supply 1.
During work, ball float is utilized to drive lower level control switch for water 3 to work, when only having lower level control switch for water 3 to open, water air pump inoperative, simultaneously when control switch 4 is opened, now water pump unlatching work, when level control switch for water 3 is closed instantly, water air pump inoperative.
Embodiment 2:
As shown in Figure 2, the general configuration of the submersible pump automatic control switch device that the present embodiment provides is identical with embodiment 1, unlike, described control switch 4 as upper level control switch for water 9, and described upper level control switch for water 9 coordinates with Electromagnetic Control drive unit 6 and locks.
In the present embodiment, on controlling when specific operation, the ball float of level control switch for water 9 and lower level control switch for water 3 is same ball float, and described lower level control switch for water 3 is normally closed switch, upper level control switch for water 9 is normal open switch, ball float is located between two switches, and contact with lower level control switch for water 3, this at present level control switch for water 3 be in off state, water air pump inoperative, along with the rising of water level, ball float leaves lower level control switch for water 3, this at present level control switch for water 3 be in closed state, but the switch on Electromagnetic Control drive unit 6 not electric, therefore disconnection is remained, so water air pump inoperative, along with water level continue be increased to water level arrive upper level control switch for water 9 time, the upper level control switch for water 9 of now ball float triggering is closed from often reaching, now the coil opened on Electromagnetic Control drive unit 6 obtains electric, now pump working, along with the work of water pump, water level slowly declines, ball float is made to leave level control switch for water 9, now lock because upper level control switch for water 9 coordinates with Electromagnetic Control drive unit 6, water pump still works, only have when ball float contacts with lower level control switch for water 3, make lower level control switch for water from normally closed become often open time, coil losing electricity, water air pump inoperative.
Embodiment 3:
As shown in Figure 3, the general configuration of the submersible pump automatic control switch device that the present embodiment provides is identical with embodiment 2, unlike, described lower level control switch for water 3 and the circuit of the coils connected in series of Electromagnetic Control drive unit 6 are also electrically connected with the first control power supply 7.
Embodiment 4:
As shown in Figure 4, the general configuration of the submersible pump automatic control switch device that the present embodiment provides is identical with embodiment 1, unlike, described Electromagnetic Control drive unit 6 is the electromagnetic relay of Single switch, and the switch of described electromagnetic relay is as control switch 4, the first control power supply 7 and lower level control switch for water 3 is electrically connected with between described Electromagnetic Control drive unit 6 and power supply 1 both positive and negative polarity, and first one of them input end controlling power supply 7 is connected on the switch of electromagnetic relay and the public connecting end of pump motor 2, the second control power supply 8 and upper level control switch for water 9 is also electrically connected with between described Electromagnetic Control drive unit 6 and power supply 1 both positive and negative polarity.
Concrete circuit connecting mode is: described first wherein one end controlling two input ends of power supply 7 is connected to power supply 1 with on the public connecting end of the switch of relay, another end is connected to pump motor 2 with on the public connecting end of the switch of Electromagnetic Control drive unit 6, first two output terminal one end controlling power supply 7 are connected to one end of the coil of Electromagnetic Control drive unit 6, another end is connected electrically in another end of the coil of Electromagnetic Control drive unit 6 by lower level control switch for water 3, described second two input ends controlling power supply 8 are connected on the positive and negative terminal of power supply 1, described second two output terminal one end controlling power supply 8 connect one end of the coil of Electromagnetic Control drive unit 6, another end is connected electrically in another end of Electromagnetic Control drive unit 6 coil by upper level control switch for water 9.
The ball float controlling level control switch for water 9 and lower level control switch for water 3 when specific operation is in the present embodiment same ball float, and described lower level control switch for water 3 is normally closed switch, upper level control switch for water 9 is normal open switch, ball float is located between two switches, and contact with lower level control switch for water 3, this at present level control switch for water 3 be in off state, water air pump inoperative, along with the rising of water level, ball float leaves lower level control switch for water 3, this at present level control switch for water 3 be in closed state, but the switch on Electromagnetic Control drive unit 6 not electric, therefore disconnection is remained, so water air pump inoperative, along with water level continue be increased to water level arrive upper level control switch for water 9 time, the upper level control switch for water 9 of now ball float triggering is closed from often reaching, now first control power supply 7 open circuit, pump working simultaneously, even if level control switch for water 9 is left in now ball float decline, level control switch for water 9 is become often open, now because first controls power supply 7, water pump also can not cut out, only have when ball float contacts with lower level control switch for water 3, make lower level control switch for water 3 from normally closed to often opening, the now coil losing electricity of Electromagnetic Control drive unit 6, water pump just can quit work.
Embodiment 5:
As shown in Figure 5, the general configuration of the submersible pump automatic control switch device that the present embodiment provides is identical with embodiment 2, unlike, described control switch 4 is the switch of band Electromagnetic Control function.Because the electromagnetism of this switch own directly can not carry out open function to switch, could can only open by switch under external force is assisted, the effect of electromagnetism is under switch opening state, even if the external force of switch open disappears also can ensure that switch does not disconnect, therefore be provided with to coordinate on ball float with the switch of this band Electromagnetic Control function respectively on the relevant position of water pump and magnet is installed, trigger switch is carried out by magnetic force, can with dry reed-pipe or magnetic reed switch at the switch of the band Electromagnetic Control function of the present embodiment.This can determine according to the requirement in specific embodiment.
Embodiment 6:
As shown in Figure 6, the general configuration of the submersible pump automatic control switch device that the present embodiment provides is identical with embodiment 3, unlike, described control switch 4 is the switch of band Electromagnetic Control function.Because the electromagnetism of this switch own directly can not carry out open function to switch, could can only open by switch under external force is assisted, the effect of electromagnetism is under switch opening state, even if the external force of switch open disappears also can ensure that switch does not disconnect, therefore be provided with to coordinate on ball float with the switch of this band Electromagnetic Control function respectively on the relevant position of water pump and magnet is installed, trigger switch is carried out by magnetic force, can use dry reed-pipe at the switch of the band Electromagnetic Control function of the present embodiment, this can determine according to the requirement in specific embodiment.
Embodiment 7:
As shown in Figure 7, the general configuration of the submersible pump automatic control switch device that the present embodiment provides is identical with embodiment 1, unlike, described Electromagnetic Control drive unit 6 is the electromagnetic relay of biswitch, one of them switch in Electromagnetic Control drive unit 6 is as control switch 4, and lower level control switch for water 3 one end is electrically connected with coil one end of Electromagnetic Control drive unit 6 after connecting with another switch of Electromagnetic Control drive unit 6, and this common port is also electrically connected with level control switch for water 9 simultaneously, and lower level control switch for water 3 the other end connects the output terminal that first controls power supply 7, described first another output terminal controlling power supply is connected with the other end of the coil of Electromagnetic Control drive unit 6, and be connected electrically between the both positive and negative polarity of power supply 1 by the first two input ends controlling power supply 7.
On controlling when specific operation in the present embodiment, the ball float of level control switch for water 9 and lower level control switch for water 3 is same ball float, and described lower level control switch for water 3 is normally closed switch, upper level control switch for water 9 is normal open switch, ball float is located between two switches, and contact with lower level control switch for water 3, this at present level control switch for water 3 be in off state, water air pump inoperative, along with the rising of water level, ball float leaves lower level control switch for water 3, this at present level control switch for water 3 be in closed state, but the switch on Electromagnetic Control drive unit 6 not electric, therefore disconnection is remained, so water air pump inoperative, along with water level continue be increased to water level arrive upper level control switch for water 9 time, the upper level control switch for water 9 of now ball float triggering closes, coil on Electromagnetic Control drive unit 6 obtains electric-opening, switch now on Electromagnetic Control drive unit 6 closes, and open the circuit at lower level control switch for water 3 place simultaneously, water pump is started working, now when water level slowly decline ball float leave upper level control switch for water 9, after the power-off of upper level control switch for water 9, because ball float does not also arrive lower level control switch for water 3, therefore the first control power supply 7 can also be powered by feed water pump, water pump still works, only have when ball float arrives lower level control switch for water 3, trigger lower level control switch for water 3 open-circuit line, water pump just can quit work.
Embodiment 8:
As shown in Figure 8, the general configuration of the submersible pump automatic control switch device that the present embodiment provides is identical with embodiment 1, unlike, described Electromagnetic Control drive unit 6 comprises the electromagnetic relay of two Single switch, the switch of one of them electromagnetic relay is serially connected between power supply 1 and pump motor 2 as control switch 4, and after the coils from parallel connection of coils of described two electromagnetic relays, be electrically connected with level control switch for water 9 and first between the both positive and negative polarity of one end and power supply 1 and control power supply 7, the switch of another electromagnetic relay is connected in series with the first output terminal controlling power supply 7 by lower level control switch for water 3.
On controlling when specific operation in the present embodiment, the ball float of level control switch for water 9 and lower level control switch for water 3 is same ball float and described lower level control switch for water 3 is normally closed switch, upper level control switch for water 9 is normal open switch, ball float is located between two switches, and contact with lower level control switch for water 3, this at present level control switch for water 3 be in off state, water air pump inoperative, along with the rising of water level, ball float leaves lower level control switch for water 3, this at present level control switch for water 3 be in closed state, but the switch on Electromagnetic Control drive unit 6 not electric, therefore disconnection is remained, so water air pump inoperative, along with water level continue be increased to water level arrive upper level control switch for water 9 time, ball float triggers upper level control switch for water 9 and opens, the coil of the relay be now connected with upper level control switch for water 9 obtains electric, the switch of this relay is closed, water pump obtains electricly starts working and opens another relay simultaneously, even if now because water level decreasing ball float leaves, upper level control switch for water 9 becomes normally open to upper level control switch for water 9, water pump also can not cut out, when under only having level control switch for water 3 instantly to trigger because ball float declines, level control switch for water 3 is from normally off to normally open, water pump just can quit work.
The mode utilizing SEA LEVEL VARIATION control switch to close in above-mentioned all embodiments all adopts ball float driving switch, and this is only as most preferred embodiment of the present invention, not limits the scope of the invention according to this.
Claims (5)
1. a submersible pump automatic control switch device, comprise power supply (1), pump motor (2) and control mechanism, described power supply (1) is connected with pump motor (2), it is characterized in that: described control mechanism comprises lower level control switch for water (3), control switch (4) and Electromagnetic Control drive unit (6), control switch (4) is connected between power supply (1) and pump motor (2), and the coils connected in series of described lower level control switch for water (3) and Electromagnetic Control drive unit (6) is between the both positive and negative polarity of power supply (1); Described control switch (4) is upper level control switch for water (9), and described upper level control switch for water (9) coordinates with Electromagnetic Control drive unit (6) and locks; Described lower level control switch for water (3) and the circuit of the coils connected in series of Electromagnetic Control drive unit (6) are also electrically connected with the first control power supply (7).
2. submersible pump automatic control switch device according to claim 1, it is characterized in that: the electromagnetic relay that described Electromagnetic Control drive unit (6) is Single switch, and the switch of described electromagnetic relay is as control switch (4), the first control power supply (7) and lower level control switch for water (3) is electrically connected with between described Electromagnetic Control drive unit (6) and power supply (1) both positive and negative polarity, and first one of them input end controlling power supply (7) is connected on the switch of electromagnetic relay and the public connecting end of pump motor (2), the second control power supply (8) and upper level control switch for water (9) is also electrically connected with between described Electromagnetic Control drive unit (6) and power supply (1) both positive and negative polarity.
3. submersible pump automatic control switch device according to claim 1, is characterized in that: described control switch (4) is the switch of band Electromagnetic Control function.
4. submersible pump automatic control switch device according to claim 1, it is characterized in that: the electromagnetic relay that described Electromagnetic Control drive unit (6) is biswitch, one of them switch in Electromagnetic Control drive unit (6) is as control switch (4), and connect with another switch of Electromagnetic Control drive unit (6) rear and be electrically connected with coil one end of Electromagnetic Control drive unit (6) in lower level control switch for water (3) one end, and the coil common port of connecting with another switch of Electromagnetic Control drive unit (6) is also electrically connected with upper level control switch for water (9) simultaneously, and lower level control switch for water (3) the other end is electrically connected with the first control power supply (7), and be connected electrically between the both positive and negative polarity of power supply (1) by the first two input ends controlling power supply (7).
5. submersible pump automatic control switch device according to claim 1, it is characterized in that: described Electromagnetic Control drive unit (6) comprises the electromagnetic relay of two Single switch, the switch of one of them electromagnetic relay is serially connected between power supply (1) and pump motor (2) as control switch (4), and after the coils from parallel connection of coils of described two electromagnetic relays, be electrically connected with level control switch for water (9) and first between the both positive and negative polarity of one end and power supply (1) and control power supply (7), the output terminal that the switch of another electromagnetic relay controls power supply (7) by lower level control switch for water (3) and first is connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310214828.2A CN103306991B (en) | 2013-06-03 | 2013-06-03 | Submersible pump automatic control switch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310214828.2A CN103306991B (en) | 2013-06-03 | 2013-06-03 | Submersible pump automatic control switch device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103306991A CN103306991A (en) | 2013-09-18 |
| CN103306991B true CN103306991B (en) | 2016-01-20 |
Family
ID=49132582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310214828.2A Active CN103306991B (en) | 2013-06-03 | 2013-06-03 | Submersible pump automatic control switch device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103306991B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3759634A (en) * | 1971-11-05 | 1973-09-18 | Sarlin Ab Oy E | Method and device for protecting a pump motor intended to be immersed in liquid |
| RU2248654C1 (en) * | 2003-06-16 | 2005-03-20 | ООО "АТЭ" (Агротехэлектро) | Automatic control device for submersible pump motor |
| CN201546259U (en) * | 2009-09-29 | 2010-08-11 | 安康供电局 | Automatic control system of collecting well |
| CN201582140U (en) * | 2009-10-29 | 2010-09-15 | 天津市天发重型水电设备制造有限公司 | Automatic drainage device of cable trench for machine tool body |
| CN201593510U (en) * | 2009-12-25 | 2010-09-29 | 中冶天工建设有限公司 | Automatic submersible pump control circuit for water level lowering in water well |
| CN201963563U (en) * | 2011-03-13 | 2011-09-07 | 陈家发 | Controller for automatically controlling water level of submersible pump |
| CN202646037U (en) * | 2012-05-15 | 2013-01-02 | 淄博矿业集团有限责任公司埠村煤矿 | Automatic pumping device of submersible pump |
| CN203272164U (en) * | 2013-06-03 | 2013-11-06 | 君禾泵业股份有限公司 | Automatic control switch device of submerged pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5184417B2 (en) * | 2009-03-30 | 2013-04-17 | 株式会社クボタ | Submersible pump control device, manhole pump device, and submersible pump control method |
-
2013
- 2013-06-03 CN CN201310214828.2A patent/CN103306991B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3759634A (en) * | 1971-11-05 | 1973-09-18 | Sarlin Ab Oy E | Method and device for protecting a pump motor intended to be immersed in liquid |
| RU2248654C1 (en) * | 2003-06-16 | 2005-03-20 | ООО "АТЭ" (Агротехэлектро) | Automatic control device for submersible pump motor |
| CN201546259U (en) * | 2009-09-29 | 2010-08-11 | 安康供电局 | Automatic control system of collecting well |
| CN201582140U (en) * | 2009-10-29 | 2010-09-15 | 天津市天发重型水电设备制造有限公司 | Automatic drainage device of cable trench for machine tool body |
| CN201593510U (en) * | 2009-12-25 | 2010-09-29 | 中冶天工建设有限公司 | Automatic submersible pump control circuit for water level lowering in water well |
| CN201963563U (en) * | 2011-03-13 | 2011-09-07 | 陈家发 | Controller for automatically controlling water level of submersible pump |
| CN202646037U (en) * | 2012-05-15 | 2013-01-02 | 淄博矿业集团有限责任公司埠村煤矿 | Automatic pumping device of submersible pump |
| CN203272164U (en) * | 2013-06-03 | 2013-11-06 | 君禾泵业股份有限公司 | Automatic control switch device of submerged pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103306991A (en) | 2013-09-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205736978U (en) | Electric installation under a kind of car load time delay | |
| CN203574443U (en) | Missile-borne power distribution seamless power transfer circuit | |
| CN201074364Y (en) | Digitalized wireless programmed water supply system | |
| CN103306991B (en) | Submersible pump automatic control switch device | |
| CN202196301U (en) | Seepage draining intelligence control system of water power station | |
| CN203272164U (en) | Automatic control switch device of submerged pump | |
| CN103349505B (en) | A kind of water dispenser device with automatic power off in water shortage | |
| CN203781679U (en) | Grab bucket crane with remote positioning and weighing systems | |
| CN206394454U (en) | A kind of electric vehicle alternating-current charging controller of vehicle power supply circuit | |
| CN204216634U (en) | A kind of inversion of uninterrupted power supply and maintenance bypass interlock circuit | |
| CN204156573U (en) | A kind of control circuit being applicable to charging pile saves energy | |
| CN204361781U (en) | There is the protection switch of automatic reclosing function | |
| CN201772129U (en) | Flooding-preventing energy-saving and full-automatic water supply cut-off device | |
| CN201407158Y (en) | Oil temperature control mechanism for hydraulic oil in concrete conveying pump | |
| CN206432730U (en) | A kind of power switch circuit of cyclelog | |
| CN201243964Y (en) | Overflow-proof controller of directly drinking machine | |
| CN204905103U (en) | One closes two disconnected electrical interlockss | |
| CN205176670U (en) | High purity water liquid level automatic control circuit of area protection | |
| CN2830768Y (en) | Energy saving electromagnetic clutch | |
| CN204792536U (en) | Disconnected electrical interlocks of two unifications | |
| CN203516922U (en) | Automatic switch of valve | |
| CN202405180U (en) | Direct-current self-holding relay | |
| CN204792535U (en) | Disconnected electrical interlocks of an unification | |
| CN202971135U (en) | Control loop of air compressor starting under no-load | |
| CN208996929U (en) | Control circuit is protected in drill jumbo water pump start and stop |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 315171 Wanzhong village, jishigang Town, Haishu District, Ningbo City, Zhejiang Province Patentee after: JUNHE PUMPS HOLDING Co.,Ltd. Address before: 315171 Qingdian, west section of Yinxian Avenue, Yinzhou District, Ningbo City, Zhejiang Province (JUNHE Pump Co., Ltd.) Patentee before: JUNHE PUMPS HOLDING Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20130918 Assignee: Ningbo JUNHE Intelligent Technology Co.,Ltd. Assignor: JUNHE PUMPS HOLDING Co.,Ltd. Contract record no.: X2021330000099 Denomination of invention: Automatic control switch device of submersible pump Granted publication date: 20160120 License type: Common License Record date: 20210828 |
|
| EE01 | Entry into force of recordation of patent licensing contract |