CN112013365A - Cast explosion-proof lamp that security performance is high - Google Patents

Cast explosion-proof lamp that security performance is high Download PDF

Info

Publication number
CN112013365A
CN112013365A CN202010947084.5A CN202010947084A CN112013365A CN 112013365 A CN112013365 A CN 112013365A CN 202010947084 A CN202010947084 A CN 202010947084A CN 112013365 A CN112013365 A CN 112013365A
Authority
CN
China
Prior art keywords
lamp
storage tank
lamp body
thermoelectric generation
pipe
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.)
Granted
Application number
CN202010947084.5A
Other languages
Chinese (zh)
Other versions
CN112013365B (en
Inventor
申晓静
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Zhongxing Explosion Proof Equipment Co ltd
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202010947084.5A priority Critical patent/CN112013365B/en
Publication of CN112013365A publication Critical patent/CN112013365A/en
Application granted granted Critical
Publication of CN112013365B publication Critical patent/CN112013365B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V25/00Safety devices structurally associated with lighting devices
    • F21V25/12Flameproof or explosion-proof arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/54Cooling arrangements using thermoelectric means, e.g. Peltier elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/56Cooling arrangements using liquid coolants

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

The invention discloses a cast explosion-proof lamp with high safety performance, which comprises a lamp shell, wherein a lamp body is installed at the lower end of the lamp shell, an electrical component is installed in the lamp shell, a cast block is cast and encapsulated outside the electrical component, a thermoelectric generation set consisting of a plurality of thermoelectric generation pieces is fixedly connected to the side wall of the electrical component, a sliding groove is formed in the side wall of the lamp shell, a magnetic sliding block is hermetically and slidably connected in the sliding groove, an electromagnet is embedded in the inner wall of the sliding groove, the thermoelectric generation set is coupled with the electromagnet through a control circuit, a liquid storage tank is formed in the side wall of the lamp shell, and cooling liquid is filled in the liquid storage tank. According to the invention, the thermoelectric generation set is arranged, the temperature difference between the inside and the outside of the pouring block is utilized to generate current, and the electromagnet is intermittently electrified, so that the sliding block is forced to move back and forth under the action of magnetic force, and finally, the cooling liquid can be driven to flow in a unidirectional circulation manner in the pipeline, so that the heat generated by the electric component can be dissipated in time, and the high temperature caused by heat accumulation can be avoided.

Description

Cast explosion-proof lamp that security performance is high
Technical Field
The invention relates to the technical field of explosion-proof lamps, in particular to a cast explosion-proof lamp with high safety performance.
Background
Explosion-proof lamps are generally used in dangerous places containing combustible gas or dust to prevent sparks and electric arcs generated inside the lamp from causing explosion.
Among them, a cast explosion-proof lamp is generally used for lighting in a dangerous place containing dust, and the lamp seals an electrical component which may generate sparks or electric arcs in a sealant to isolate the electrical component from the dust, thereby avoiding dangerous situations. However, due to the current heat effect, the electrical component generates a large amount of heat in the using process, and the heat in the electrical component which is encapsulated in the encapsulating agent is difficult to be rapidly dissipated, so that high temperature is easily generated, the lamp is damaged, and dangerous situations such as explosion are easily caused when the temperature is too high.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a cast explosion-proof lamp with high safety performance.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a casting type explosion-proof lamp that security performance is high, includes the lamp body, the lamp body is installed to the lower extreme of lamp body, install electrical parts in the lamp body, just electrical parts waters outward and seals there is the piece of casting, the thermoelectric generation group that a plurality of thermoelectric generation pieces of fixedly connected with are constituteed on electrical parts's the lateral wall, the spout has been seted up to the lateral wall of lamp body, the slider of sealed sliding connection in the spout magnetism system, it is equipped with the electro-magnet to inlay on the inner wall of spout, just thermoelectric generation group passes through control circuit and electro-magnet coupling, the reservoir has been seted up to the lateral wall of lamp body, the reservoir intussuseption is filled with the coolant liquid, the intercommunication has one-way feed liquor pipe and one-way drain pipe between reservoir and the spout.
Preferably, a water storage tank communicated with the chute is formed in the side wall of the lamp housing, water is filled in the water storage tank, a one-way exhaust pipe and a one-way air inlet pipe are respectively arranged at the inner top and the inner bottom of the chute, and a plurality of air inlet holes communicated with the one-way air inlet pipe are formed in the lower end of the lamp housing.
Preferably, the upper end of lamp body is equipped with the communicating flexible gasbag with one-way blast pipe, the intercommunication has the outlet duct between flexible gasbag and the reservoir, just install the relief valve in the outlet duct, the top is rotated and is connected with the impeller in the reservoir, a plurality of spoilers of fixedly connected with in the pivot of impeller.
The invention has the following beneficial effects:
1. by arranging the thermoelectric generation set, current is generated by utilizing the temperature difference between the inside and the outside of the pouring block, and the electromagnet is electrified intermittently, so that the sliding block is forced to move back and forth under the action of magnetic force, and finally, cooling liquid can be driven to flow in a unidirectional circulation manner in a pipeline, so that heat generated by an electrical component is dissipated in time, and high temperature caused by heat accumulation is avoided;
2. by arranging the one-way air inlet pipe, the one-way exhaust pipe and the water storage tank, air near the lamp body can be continuously pumped into the water storage tank in the process that the sliding block moves back and forth, and water is filtered and then discharged, so that the dust concentration near the lamp body can be greatly reduced, and the safety performance of the explosion-proof lamp is improved;
3. through setting up parts such as flexible gasbag, impeller and spoiler, can store the leading-in flexible gasbag of exhaust air, discharge again and blow the impeller rotation after waiting to store the air of capacity to drive the coolant liquid in the spoiler constantly stirs the reservoir, the coolant liquid cooling accelerates, improves the cooling rate of this device.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a second embodiment of the present invention;
fig. 3 is an enlarged schematic view of a structure in fig. 2.
In the figure: the device comprises a lamp housing 1, a lamp body 2, an electrical component 3, a pouring block 4, a thermoelectric generation set 5, a sliding groove 6, an electromagnet 7, a sliding block 8, a liquid storage tank 9, a liquid filling opening 91, a unidirectional liquid inlet pipe 10, a unidirectional liquid outlet pipe 11, a water storage tank 12, a unidirectional air inlet pipe 13, an air inlet hole 131, a unidirectional air outlet pipe 14, a telescopic air bag 15, an air outlet pipe 16, a pressure release valve 161, an impeller 17 and a spoiler 18.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
The first embodiment is as follows:
referring to fig. 1, a casting type explosion-proof lamp that security performance is high, including lamp body 1, lamp body 2 is installed to the lower extreme of lamp body 1, install electrical component 3 in the lamp body 1, and the outer casting of electrical component 3 has a casting piece 4, thermoelectric generation group 5 that a plurality of thermoelectric generation pieces of fixedly connected with are constituteed on electrical component 3's the lateral wall, the one end that electrical component 3 was kept away from to each thermoelectric generation piece all sets up outside lamp body 1, in order to guarantee can produce the difference in temperature at lamps and lanterns during operation, when specifically installing, can adorn thermoelectric generation piece on electrical component 3 in advance, integrative casting is accomplished again. The lateral wall of lamp body 1 has seted up spout 6, and sealed sliding connection has the slider 8 of magnetism system in the spout 6, inlays on the inner wall of spout 6 and is equipped with electro-magnet 7, and electro-magnet 7 is relative with the same name magnetic pole of magnetism system slider 8, and thermoelectric generation group 5 passes through control circuit and electro-magnet 7 coupling, specifically, control circuit can adopt triode or MOS pipe formation self excitation circuit to direct current output that thermoelectric generation group 5 produced is impulse electricity, thereby makes electro-magnet 7 intermittent type nature circular telegram. Reservoir 9 has been seted up to the lateral wall of lamp body 1, and reservoir 9 intussuseption is filled with the coolant liquid, and the intercommunication has one-way feed liquor pipe 10 and one-way drain pipe 11 between reservoir 9 and the spout 6, and has seted up filling opening 91 on the inner wall of reservoir 9, and one-way feed liquor pipe 10 only allows the coolant liquid to flow to spout 6 from reservoir 9, and one-way drain pipe 11 only allows the coolant liquid to flow to reservoir 9 from spout 6.
The lateral wall of the lamp shell 1 is provided with a water storage tank 12 communicated with the chute 6, the water storage tank 12 is filled with water, the inner top and the inner bottom of the chute 6 are respectively provided with a one-way exhaust pipe 14 and a one-way intake pipe 13, the lower end of the lamp shell 1 is provided with a plurality of air inlets 131 communicated with the one-way intake pipe 13, and the plurality of air inlets 131 are uniformly distributed around the lamp body 2 so as to fully absorb air near the lamp body 2. The one-way exhaust pipe 14 only allows air to flow from the inside of the chute 6 to the outside of the chute 6, the one-way intake pipe 13 only allows air to flow from the outside of the water storage tank 12 to the inside of the water storage tank 12, and the one-way liquid inlet pipe 10, the one-way liquid outlet pipe 11, the one-way intake pipe 13 and the one-way exhaust pipe 14 can realize related functions by installing a one-way valve in a pipeline.
This device is when using, and the heat that electric component 3 produced can transmit to the one end of thermoelectric generation group 5, and outside the lamp body 1 was arranged in to the other end of thermoelectric generation group 5, thereby the thermoelectric generation group 5 both ends can produce great difference in temperature and produce electric current and supply power to electro-magnet 7 through control circuit, and electro-magnet 7 will intermittent type nature circular telegram and produce magnetism.
When the electromagnet 7 is in a power-off state, the magnetic sliding block 8 is absorbed by an iron core in the electromagnet 7 and moves leftwards, and when the electromagnet 7 is powered on, the electromagnet 7 is opposite to the same-name magnetic pole of the sliding block 8 and moves rightwards under the pushing of magnetic repulsion force. So can be at the intermittent type nature circular telegram in-process of electro-magnet 7 for slider 8 round trip movement about in spout 6, and slider 8 when moving to the right can be with the coolant liquid by in the one-way feed liquor pipe 10 suction spout 6 in, and slider 8 when moving to the left can squeeze the coolant liquid in the spout 6 back to the reservoir 9 by one-way drain pipe 11. So can make the coolant liquid at one-way feed liquor pipe 10 and one-way drain pipe 11 internal circulation flow, the coolant liquid can distribute away the heat that electric component 3 produced fast when flowing through one-way feed liquor pipe 10 like this, avoids the heat to pile up and produce high temperature, prevents to cause the damage or to cause dangerous situation to lamps and lanterns.
Slider 8 is in the time of round trip movement in spout 6, still can be with near the air of lamp body 2 by one-way intake pipe 13 suction aqua storage tank 12 in, after the water washing purification in aqua storage tank 12 there is one-way blast pipe 14 to discharge, dust in the air is after the water full contact with in aqua storage tank 12, can be held back in aqua storage tank 12, thereby can carry out the water filtration purification treatment to near the air of lamp body 2, the dust concentration in the near air of greatly reduced lamp body 2, prevent dangerous accidents such as dust explosion, further improve explosion-proof lamp's security performance.
Example two:
referring to fig. 2-3, different from the first embodiment, the upper end of the lamp housing 1 is provided with a telescopic air bag 15 communicated with the one-way exhaust pipe 14, an air outlet pipe 16 is communicated between the telescopic air bag 15 and the liquid storage tank 9, a pressure release valve 161 is installed in the air outlet pipe 16, an impeller 17 is rotatably connected to the top of the liquid storage tank 9, and a plurality of spoilers 18 are fixedly connected to a rotating shaft of the impeller 17. By providing the telescopic air bag 15 and the pressure release valve 161, a certain amount of air stored in the telescopic air bag 15 can be discharged again, so that the speed of the air flow ejected from the air outlet pipe 16 can be greatly increased, and sufficient power can be generated to drive the impeller 17 to rotate. In addition, the air outlet end of the air outlet pipe 16 and the liquid filling port 91 are arranged on the same horizontal height, so that the sprayed air flow can be directly discharged from the liquid storage tank 9, meanwhile, the hot air in the liquid storage tank 9 can be discharged, and the cooling speed of the cooling liquid in the liquid storage tank 9 is further improved.
In this embodiment, constantly from the one-way exhaust pipe 14 exhaust air-purifying will be bloated in flexible gasbag 15, flexible gasbag 15 will also be bloated thereupon, its inside atmospheric pressure will constantly increase, when the atmospheric pressure in flexible gasbag 15 rises to the threshold value of relief valve 161, the relief valve is opened, thereby spout the air by outlet duct 16, spun air current can promote impeller 17 and constantly rotate, and drive each spoiler 18 and constantly rotate, stir the coolant liquid in the reservoir 9, distribute away with the absorptive heat of coolant liquid fast, make the coolant liquid in the reservoir 9 can continuously absorb the heat of electrical component 3, improve the cooling speed of this device.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (3)

1. The utility model provides a casting type explosion-proof lamp that security performance is high, includes lamp body (1), lamp body (2) are installed to the lower extreme of lamp body (1), install electric parts (3) in lamp body (1), just electric parts (3) outer casting have a piece (4) of sealing, a serial communication port, thermoelectric generation group (5) that fixedly connected with a plurality of thermoelectric generation piece are constituteed on the lateral wall of electric parts (3), spout (6) have been seted up to the lateral wall of lamp body (1), spout (6) inner seal sliding connection has slider (8) of magnetism system, inlay on the inner wall of spout (6) and be equipped with electro-magnet (7), just thermoelectric generation group (5) pass through control circuit and electro-magnet (7) coupling, reservoir (9) have been seted up to the lateral wall of lamp body (1), reservoir (9) intussuseption be filled with the coolant liquid, the intercommunication has one-way feed liquor pipe (10) and one-way drain pipe (11) between reservoir (9) and spout (6) ) And a liquid adding opening (91) is arranged on the inner wall of the liquid storage tank (9).
2. The cast explosion-proof lamp with high safety performance according to claim 1, wherein a water storage tank (12) communicated with the chute (6) is formed in the side wall of the lamp housing (1), water is filled in the water storage tank (12), a one-way exhaust pipe (14) and a one-way intake pipe (13) are respectively arranged at the inner top and the inner bottom of the chute (6), and a plurality of air inlets (131) communicated with the one-way intake pipe (13) are formed in the lower end of the lamp housing (1).
3. The cast explosion-proof lamp with high safety performance according to claim 2, wherein the upper end of the lamp housing (1) is provided with a telescopic air bag (15) communicated with the unidirectional exhaust pipe (14), an air outlet pipe (16) is communicated between the telescopic air bag (15) and the liquid storage tank (9), a pressure release valve (161) is installed in the air outlet pipe (16), the top of the interior of the liquid storage tank (9) is rotatably connected with an impeller (17), and a plurality of spoilers (18) are fixedly connected to a rotating shaft of the impeller (17).
CN202010947084.5A 2020-09-10 2020-09-10 Cast explosion-proof lamp that security performance is high Active CN112013365B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010947084.5A CN112013365B (en) 2020-09-10 2020-09-10 Cast explosion-proof lamp that security performance is high

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010947084.5A CN112013365B (en) 2020-09-10 2020-09-10 Cast explosion-proof lamp that security performance is high

Publications (2)

Publication Number Publication Date
CN112013365A true CN112013365A (en) 2020-12-01
CN112013365B CN112013365B (en) 2021-03-19

Family

ID=73521734

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010947084.5A Active CN112013365B (en) 2020-09-10 2020-09-10 Cast explosion-proof lamp that security performance is high

Country Status (1)

Country Link
CN (1) CN112013365B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114963085A (en) * 2022-06-02 2022-08-30 深圳创硕光业科技有限公司 Explosion-proof industrial and mining illuminating lamp

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2966903A1 (en) * 2010-10-29 2012-05-04 Wat Cie Lighting device for use in e.g. area with presence of mist, vapor and gas in chemical factory, has casing for accommodating light generator, and optical apparatus positioned at free end of light transmission unit opposite to casing
CN103016992A (en) * 2012-12-24 2013-04-03 江苏森隆机电有限公司 LED (Light Emitting Device) light capable of generating electricity by self and actively radiating heat
CN105263295A (en) * 2015-10-21 2016-01-20 上海大学 Micro channel radiator
US20160053984A1 (en) * 2014-08-21 2016-02-25 Michael D. Callaghan Apparatus for direct led uv irradiation
CN205859647U (en) * 2016-08-03 2017-01-04 江苏尚恩光电科技有限公司 A kind of high power quick heat radiating type LED
CN208312130U (en) * 2018-06-27 2019-01-01 西安哈勃正辉绿色节能照明科技有限公司 A kind of new type explosion proof LED fluorescent lamp
CN110822353A (en) * 2019-11-15 2020-02-21 徐州达娇物资贸易有限公司 Cast high-temperature-resistant LED explosion-proof lamp
CN111322571A (en) * 2020-03-23 2020-06-23 郑州峻斯电子科技有限公司 Solar LED street lamp with heat energy recovery function
CN111520640A (en) * 2020-05-06 2020-08-11 徐玲 Novel outdoor LED (light-emitting diode) landscape lamp
CN111578198A (en) * 2020-06-07 2020-08-25 武汉钟码科技有限公司 Long service life's LED ceiling lamp

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2966903A1 (en) * 2010-10-29 2012-05-04 Wat Cie Lighting device for use in e.g. area with presence of mist, vapor and gas in chemical factory, has casing for accommodating light generator, and optical apparatus positioned at free end of light transmission unit opposite to casing
CN103016992A (en) * 2012-12-24 2013-04-03 江苏森隆机电有限公司 LED (Light Emitting Device) light capable of generating electricity by self and actively radiating heat
US20160053984A1 (en) * 2014-08-21 2016-02-25 Michael D. Callaghan Apparatus for direct led uv irradiation
CN105263295A (en) * 2015-10-21 2016-01-20 上海大学 Micro channel radiator
CN205859647U (en) * 2016-08-03 2017-01-04 江苏尚恩光电科技有限公司 A kind of high power quick heat radiating type LED
CN208312130U (en) * 2018-06-27 2019-01-01 西安哈勃正辉绿色节能照明科技有限公司 A kind of new type explosion proof LED fluorescent lamp
CN110822353A (en) * 2019-11-15 2020-02-21 徐州达娇物资贸易有限公司 Cast high-temperature-resistant LED explosion-proof lamp
CN111322571A (en) * 2020-03-23 2020-06-23 郑州峻斯电子科技有限公司 Solar LED street lamp with heat energy recovery function
CN111520640A (en) * 2020-05-06 2020-08-11 徐玲 Novel outdoor LED (light-emitting diode) landscape lamp
CN111578198A (en) * 2020-06-07 2020-08-25 武汉钟码科技有限公司 Long service life's LED ceiling lamp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114963085A (en) * 2022-06-02 2022-08-30 深圳创硕光业科技有限公司 Explosion-proof industrial and mining illuminating lamp
CN114963085B (en) * 2022-06-02 2023-08-01 深圳创硕光业科技有限公司 Explosion-proof type industrial and mining lighting lamp

Also Published As

Publication number Publication date
CN112013365B (en) 2021-03-19

Similar Documents

Publication Publication Date Title
CN112013365B (en) Cast explosion-proof lamp that security performance is high
CN209170109U (en) A kind of new-energy automobile water cooling machine casing of motor
CN2893237Y (en) Mining flame-proof sand-removing submerged electric pump
CN201650756U (en) Centrifugal water pump with automatic water drawing device
CN203339887U (en) Direct current motor for vehicles
CN211183642U (en) Cooling structure of motor housing
CN211481092U (en) Motor with heat-proof anti-seepage function
CN112254048A (en) Anti-dazzle LED underground lamp
CN212669205U (en) Hydrogen production system
CN212057889U (en) Double-circulation water cooling device
CN209756844U (en) new energy automobile power battery heat radiation structure
CN206377048U (en) A kind of vavuum pump
CN208236658U (en) A kind of double suction second level middle open centrifugal pump
CN203659990U (en) Fuel cell stack suitable for vehicle
CN206883033U (en) A kind of laser machine
CN112289641A (en) High-temperature self-starting heat dissipation system for electromagnetic relay
CN218763651U (en) Quick exhaust apparatus of hot-water bottle
CN209380116U (en) A kind of automatic cooling device of welding machine
CN114001010B (en) Buoyancy water lifting device for water conservancy and hydropower
CN207274469U (en) A kind of pure electric automobile battery pack structure
CN209448591U (en) A kind of water-proof type model electromagnetic machine
CN205647146U (en) Water -cooling structure fan housing
CN218811982U (en) Device for recycling ruthenium in waste catalyst
CN214092355U (en) Injection molding magnetic rotor single-coil brushless water pump
CN106870454B (en) The convenient water pump of automatic circulation type

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TA01 Transfer of patent application right
TA01 Transfer of patent application right

Effective date of registration: 20210305

Address after: 325600 Wenzhou Daqiao Industrial Zone, Yueqing City, Wenzhou City, Zhejiang Province

Applicant after: ZHEJIANG ZHONGXING EXPLOSION-PROOF EQUIPMENT Co.,Ltd.

Address before: No.318, weishiwu Road, Yueqing Economic Development Zone, Wenzhou, Zhejiang 325000

Applicant before: Shen Xiaojing