CN102705039B - Filter and engine with same - Google Patents

Filter and engine with same Download PDF

Info

Publication number
CN102705039B
CN102705039B CN201210208598.4A CN201210208598A CN102705039B CN 102705039 B CN102705039 B CN 102705039B CN 201210208598 A CN201210208598 A CN 201210208598A CN 102705039 B CN102705039 B CN 102705039B
Authority
CN
China
Prior art keywords
filter
conducting
metal fillings
electric
stem
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
Application number
CN201210208598.4A
Other languages
Chinese (zh)
Other versions
CN102705039A (en
Inventor
于锦丽
贺俊
张进
沈秀利
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.)
AECC South Industry Co Ltd
Original Assignee
China National South Aviation Industry Co Ltd
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 China National South Aviation Industry Co Ltd filed Critical China National South Aviation Industry Co Ltd
Priority to CN201210208598.4A priority Critical patent/CN102705039B/en
Publication of CN102705039A publication Critical patent/CN102705039A/en
Application granted granted Critical
Publication of CN102705039B publication Critical patent/CN102705039B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Filtration Of Liquid (AREA)

Abstract

The invention provides a filter and an engine with the same. According to the filter provided by the invention, the filter comprises a metal scrap detection device, and the metal scrap detection device comprises a metal scrap collection device which can enable a first signal terminal and a second signal terminal, which are located at the two ends of the metal scrap collection device, to be switched on after the metal scrap collection device collects metal scraps. According to the filter and the engine with the same, the positive and negative poles of a power supply are respectively connected onto the first signal terminal and the second signal terminal, an alarm device is connected into a circuit in a series connection manner, when the metal scraps are produced due to engine wear, a conductive rod and a filter seat are switched on, i.e. the circuit is switched on, when a certain amount of metal scraps is collected by the metal scrap collection device, and the alarm device can be started up, so that the wear of components and parts of the engine can be promptly discovered, and the engine failure can be effectively prevented.

Description

Filter and there is its motor
Technical field
The present invention relates to engine art, in particular to a kind of filter and the motor with it.
Background technique
The oil system of existing piston aviation engine all only has lubricating oil filtrating equipment, does not have metal fillings warning device.And when wearing and tearing appear in motor, the most directly reaction is exactly occur metal fillings in lubricating oil.There is no metal fillings warning device because of the prior art, thus cause user not wear and tear by Timeliness coverage engine part, thus cause the parts depreciation starting to wear and tear aggravate or damage, even break down and cause security incident.For this reason, user is broken down to prevent motor, and user needs the filter screen making regular check on lubricating oil filtrating equipment, to judge whether to occur abnormal conditions, needs periodic cleaning lubricating oil filter screen like this, troublesome poeration.
Summary of the invention
The present invention aim to provide a kind of when causing occurring metal fillings in lubricating oil when engine part wearing and tearing can and alarm filter and there is its motor, must not the problem of Timeliness coverage engine part wearing and tearing with solution.
An aspect of of the present present invention provides a kind of filter, and filter comprises metal fillings detection device, and metal fillings detection device can make to be connected to first signal end at its two ends and the metal fillings gathering-device of secondary signal end conducting after comprising collection metal fillings.
Further, filter also comprises as the filtering base of the first signal end and the electric-conducting stem as secondary signal end, and the first end of electric-conducting stem is fixedly installed the first filter screen, and the second end of electric-conducting stem to be fixed on filtering base and to isolate with its insulation; The first end of metal fillings gathering-device is electrically connected with filtering base, and the second end of metal fillings gathering-device is electrically connected with electric-conducting stem.
Further, metal fillings gathering-device has multiple metal fillings collection gap.
Further, metal fillings gathering-device comprises the conducting plate assembly be set on electric-conducting stem, and the first end of conducting plate assembly is electrically connected with filtering base, and the second end of conducting plate assembly is electrically connected with electric-conducting stem; Conducting plate assembly comprises multiple conducting plate, and multiple conducting plate mutually insulated is isolated and between adjacent two conducting plates, gap arranges formation metal fillings collection gap.
Further, conducting plate assembly also comprises multiple insulated rivet, each conducting plate is provided with multiple rivet hole coordinated with insulated rivet, and multiple conducting plate string is located in insulated rivet.
Further, between two adjacent conducting plates, also there is the insulating washer be set in insulated rivet.
Further, filter also comprises and being set on electric-conducting stem and second filter screen of isolating with its insulation.
Further, the first end of the second filter screen is electrically connected with the first end of conducting plate assembly, and the second end of the second filter screen is electrically connected with filtering base.
Further, the filter precision of the second filter screen is greater than the filter precision of the first filter screen.
Further, filter also comprises conductive plate assembly, and conductive plate assembly comprises conductive plate and is wrapped on conductive plate to make itself and filtering base insulate the felt pad of isolating; The center portion of conductive plate is electrically connected with electric-conducting stem, conductive plate is arranged the wire connecting portion extending to filter outside.
Another aspect of the present invention additionally provides a kind of motor, comprise lubricating oil pond, the bottom in lubricating oil pond has filter installation portion, the pool wall in lubricating oil pond is also provided with the oil pumping passage be equipped with filter installation portion, filter installation portion is provided with aforesaid filter, the first filter screen of filter is equipped with in the ingress of oil pumping passage away from the end of electric-conducting stem and insulate with pool wall isolates; Motor also comprises warning device, and warning device is connected in series with the first signal end and secondary signal end being connected to metal fillings detection device two ends.
According to filter of the present invention and the motor with it, by being connected the positive and negative electrode of power supply respectively and connecting in circuit warning device on the first signal end with secondary signal end, when engine scuffing produces metal fillings, when a certain amount of metal fillings collected by metal fillings gathering-device, first signal end and the conducting of secondary signal end, i.e. circuit turn-on, makes alarm activation, thus the wearing and tearing of Timeliness coverage engine component, effectively can prevent engine failure.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the partial structurtes schematic diagram according to motor of the present invention;
Fig. 2 is the structural representation according to filter of the present invention;
Fig. 3 is the structural representation of the metal fillings gathering-device according to filter of the present invention;
Fig. 4 a is the conducting strip structure schematic diagram of the metal fillings gathering-device according to filter of the present invention;
Fig. 4 b is the insulated rivet structural representation of the metal fillings gathering-device according to filter of the present invention;
Fig. 5 is the structural representation of the electric-conducting stem according to filter of the present invention;
Fig. 6 a is the main TV structure schematic diagram of the conductive plate assembly according to filter of the present invention; And
Fig. 6 b is the sectional structure schematic diagram of the conductive plate assembly according to filter of the present invention.
Embodiment
Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
As shown in Figures 1 to 3, according to filter of the present invention, filter comprises metal fillings detection device, and metal fillings detection device can make to be connected to first signal end at its two ends and the metal fillings gathering-device 30 of secondary signal end conducting after comprising collection metal fillings.The present invention by being connected the positive and negative electrode of power supply respectively and connecting in circuit warning device on the first signal end with secondary signal end, when engine scuffing produces metal fillings, when a certain amount of metal fillings collected by metal fillings gathering-device, first signal end and the conducting of secondary signal end, i.e. circuit turn-on, make alarm activation, thus the wearing and tearing of Timeliness coverage engine component, effectively can prevent engine failure.
Filter also comprises the filtering base 10 as the first signal end and the electric-conducting stem 20 as secondary signal end, and the first end of electric-conducting stem 20 is fixedly installed the first filter screen 40, and the second end of electric-conducting stem 20 to be fixed on filtering base 10 and to isolate with its insulation; The first end of metal fillings gathering-device 30 is electrically connected with filtering base 10, and the second end of metal fillings gathering-device 30 is electrically connected with electric-conducting stem 20.When a certain amount of metal fillings collected by metal fillings gathering-device, filtering base 10 and electric-conducting stem 20 conducting.By using filtering base 10 and electric-conducting stem 20 as the first signal end and secondary signal end, only need to arrange corresponding insulating part by the two insulation isolation, and substantially do not need to make larger change to the original structure of filtering base 10 and electric-conducting stem 20.Also the next mode be connected with outside power box warning device of mode of wire can be drawn by metal fillings gathering-device 30 being led to the isolation of other part insulates, but this must need the duct arranging wire turnover on filtering base 10 or electric-conducting stem 20, and brings sealing problem.
Preferably, as shown in Figures 2 and 3, the metal fillings gathering-device 30 of filter of the present invention has multiple metal fillings collection gap 31.When not having metal fillings in metal fillings collection gap 31, metal fillings gathering-device 30 is insulator; When collecting a certain amount of metal fillings in metal fillings collection gap 31, metal fillings gathering-device 30 becomes conductor, thus make the electric-conducting stem 20 that is connected with metal fillings gathering-device 30 and filtering base 10 conducting, thus the positive and negative electrode of the power supply be connected with the two is conducted, i.e. circuit turn-on, alarm activation.
As shown in Figures 2 and 3, metal fillings gathering-device 30 comprises the conducting plate assembly be set on electric-conducting stem 20, and the first end of conducting plate assembly is electrically connected with filtering base 10, and the second end of conducting plate assembly is electrically connected with electric-conducting stem 20; Conducting plate assembly comprises multiple conducting plate 32, and multiple conducting plate 32 mutually insulated is isolated and between adjacent two conducting plates 32, gap arranges formation metal fillings collection gap 31.Leave metal fillings collection gap 31 between multiple conducting plate 32 mutually insulated isolation and two adjacent conducting plates 32, thus make when not having metal fillings in metal fillings collection gap 31, conducting plate assembly is insulator.And when wearing and tearing appear in motor, lubricating oil in lubricating oil pond can have a certain amount of metal fillings, metal fillings is under the pumping forces effect of gravity and oil pump, the metal fillings that can gather gradually between each conducting plate is collected in gap 31, thus make each conducting plate by metal fillings mutual conduction, thus make conducting plate assembly become conductor turning circuit, start warning device.
According to different model, the size of motor, the number of conducting plate 32 in conducting plate assembly, also namely the number in metal fillings collection gap 31 can adjust accordingly.Usually, when metal fillings collection gap 31 is fewer, metal fillings gathering-device 30 can be sensitiveer, but when metal fillings collection gap 31 is very few, can cause the problem reported by mistake during motor normal wear.
Preferably, as shown in Fig. 3 and Fig. 4 a, Fig. 4 b, conducting plate assembly also comprises multiple insulated rivet 33, and each conducting plate 32 is provided with multiple rivet hole coordinated with insulated rivet 33, multiple conducting plate 32 string is located in insulated rivet 33, thus each conducting plate 32 is fixed.More preferably, between two adjacent conducting plates 32, also there is the insulating washer 34 be set in insulated rivet 33, during arrangement, ensure that the width in gap between each conducting plate 32 (metal fillings collects gap 31) is consistent by insulating washer 34, thus the problem preventing some metal fillingss from collecting gap 31 excesssive gap and cause needing collecting more metal fillings just can make mutual conduction between each conducting plate and reduce the sensitivity of device.
Preferably, as depicted in figs. 1 and 2, filter also comprises and to be set on electric-conducting stem 20 and the first end of second filter screen 50, second filter screen 50 of isolating with its insulation is electrically connected with the first end of conducting plate assembly, and the second end of the second filter screen 50 is electrically connected with filtering base 10.Namely first the second filter screen 50 act as wire connection filtering base 10 and conducting plate assembly.Secondly, due to the oil outlet of the second filter screen 50 near lubricating oil pond, thus the lubricating oil of discharging lubricating oil pond is filtered.More preferably, the filter precision of the second filter screen 50 is greater than the filter precision of the first filter screen 40, namely required precision when oil extraction is filtered is higher than the requirement to lubricating oil during engine work, thus the material in lubricating oil is fully filtered, thus be convenient to filtration product analysis, so that the more detailed operation conditions understanding motor.In order to prevent draining the oil, filtering base 10 is also provided with oil drain cock assembly 70.
As shown in Figure 2, isolate for the ease of the installation of the second filter screen 50 and insulating with electric-conducting stem 20, the first end of electric-conducting stem 20 is provided with cylindric insulation base 51, electric-conducting stem 20 is provided with the bar neck coordinated with described insulation base 51, and circlip groove is provided with on bar neck, back-up ring 53 is connected in circlip groove, thus fixed insulation seat 51.The first end of electric-conducting stem 20 is provided with short insulating cylinder 52.The first end of the second filter screen 50 is set in insulation base 51, and its second end is set in short insulating cylinder 52, thus itself and electric-conducting stem 20 is insulated isolate.In addition, conducting plate assembly is also set on insulation base 51, and one end abuts with the second filter screen 50, and the other end abuts with the boss on the first filter screen 40 or electric-conducting stem 20.
As described in Fig. 2 and Fig. 5, conveniently install, and the first filter screen 40 and the second filter screen 50 are kept apart, discoid projection 22 is arranged in the end be connected with the first filter screen 40 at electric-conducting stem 20, and is arranged at the relative the other end screw thread that nut 21 matches.At the outer circumferential side of discoid projection 22, the flange being convenient to coordinate with the first filter screen 40 is set.Discoid projection 22 makes the inner space of the first filter screen 40 and the second filter screen 50 keep apart, and the material namely through the first filter screen 40 can only be extracted out from oil pumping passage 2, and cannot flow into the inside of the second filter screen 50 thus discharge from oil outlet.Otherwise also, the material through the second filter screen 50 can only be discharged from oil outlet, and directly cannot enter the inside of the first filter screen 40.
As Fig. 1,2 and Fig. 6 a and Fig. 6 b shown in, filter also comprises conductive plate assembly 60, conductive plate assembly 60 comprises conductive plate 61 and is wrapped in conductive plate 61 has made itself and filtering base 10 to insulate the felt pad 62 of isolating, the center portion of conductive plate 61 is electrically connected with electric-conducting stem 20, conductive plate 61 is arranged the wire connecting portion 61a extending to filter outside, namely by arranging conductive plate assembly 60, thus make to be wrapped in filtering base 10 inside electric-conducting stem 20 terminal of a convenience and external connecting leads are set, improve the convenience and reliability that use.
As shown in Figure 1, present invention also offers a kind of motor, comprise lubricating oil pond 1, the bottom in lubricating oil pond has filter installation portion, the pool wall in lubricating oil pond 1 is also provided with the oil pumping passage 2 be equipped with filter installation portion, filter installation portion is provided with aforesaid filter, first filter screen 40 of filter is equipped with the entrance at oil pumping passage 2 away from the end of electric-conducting stem 20, isolate to insulate to the first filter screen 40 and pool wall, thus prevent the first filter screen 40, electric-conducting stem 20, pool wall, filtering base 10 directly conducting, at the sheathed insulating cylinder 41 in end that the first filter screen 40 coordinates with oil pumping passage 2.
Use the motor of filter of the present invention, after filter installs, the wire connecting portion 61a of conductive plate 61 connects a pole of power supply, filtering base 10 connects another pole of power supply.When engine work, because lubricating oil is insulator, be spaced from each other between each conducting plate 32, circuit cannot conducting.When engine component starts to wear and tear, start in lubricating oil to occur metal fillings, metal fillings is at gravity, under the pumping forces effect of oil pump, starting the metal fillings constantly run up between each conducting plate 32 collects in gap 31, when collecting enough metal fillingss in each metal fillings collection gap 31, all conducting plates 32 are communicated with, conductive plate 61, electric-conducting stem 20, conducting plate assembly, second filter screen 50, filtering base 10 forms path, be connected to the alarm activation between filtering base 10 and conductive plate 61, warning device can be buzzer, the conventional alarm device of the optical signals such as signaling lamp or sound signal or the two combination.
As can be seen from the above description, the above embodiments of the present invention achieve following technique effect:
According to filter of the present invention and the motor with it, by being connected the positive and negative electrode of power supply respectively and connecting in circuit warning device on the first signal end with secondary signal end, when engine scuffing produces metal fillings, when a certain amount of metal fillings collected by metal fillings gathering-device, electric-conducting stem and filtering base conducting, i.e. circuit turn-on, make alarm activation, thus the wearing and tearing of Timeliness coverage engine component, effectively can prevent engine failure.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (8)

1. a filter, it is characterized in that, described filter comprises metal fillings detection device, described metal fillings detection device can make to be connected to first signal end at its two ends and the metal fillings gathering-device (30) of secondary signal end conducting after comprising collection metal fillings, and described metal fillings gathering-device (30) has multiple metal fillings and collects gap (31);
Described filter also comprises the filtering base (10) as the first signal end and the electric-conducting stem (20) as secondary signal end, the first end of described electric-conducting stem (20) is fixedly installed the first filter screen (40), and the second end of described electric-conducting stem (20) is fixed on described filtering base (10) and goes up and isolate with its insulation;
The first end of described metal fillings gathering-device (30) is electrically connected with described filtering base (10), and the second end of described metal fillings gathering-device (30) is electrically connected with described electric-conducting stem (20);
Described metal fillings gathering-device (30) comprises the conducting plate assembly be set on described electric-conducting stem (20), the first end of described conducting plate assembly is electrically connected with described filtering base (10), and the second end of described conducting plate assembly is electrically connected with described electric-conducting stem (20);
Described conducting plate assembly comprises multiple conducting plate (32), and multiple described conducting plate (32) mutually insulated is isolated and between adjacent two described conducting plates (32), gap arranges described metal fillings collection gap (31) of formation.
2. filter according to claim 1, is characterized in that,
Described conducting plate assembly also comprises multiple insulated rivet (33), each described conducting plate (32) is provided with the rivet hole that multiple and described insulated rivet (33) coordinates, multiple described conducting plate (32) string is located in described insulated rivet (33).
3. filter according to claim 2, is characterized in that,
Between two adjacent described conducting plates (32), also there is the insulating washer (34) be set in described insulated rivet (33).
4. filter according to claim 1, is characterized in that,
Described filter also comprises and is set in upper and second filter screen (50) of isolating with its insulation of described electric-conducting stem (20).
5. filter according to claim 4, is characterized in that,
The first end of described second filter screen (50) is electrically connected with the first end of described conducting plate assembly, and the second end of described second filter screen (50) is electrically connected with described filtering base (10).
6. the filter according to claim 4 or 5, is characterized in that,
The filter precision of described second filter screen (50) is greater than the filter precision of described first filter screen (40).
7. filter according to claim 1, is characterized in that,
Described filter also comprises conductive plate assembly (60), and described conductive plate assembly (60) comprises conductive plate (61) and is wrapped in the felt pad (62) that described conductive plate (61) is isolated to make itself and described filtering base (10) insulate;
The center portion of described conductive plate (61) is electrically connected with described electric-conducting stem (20), and described conductive plate (61) is upper arranges the wire connecting portion (61a) extending to described filter outside.
8. a motor, comprise lubricating oil pond (1), the bottom in described lubricating oil pond has filter installation portion, the pool wall of described lubricating oil pond (1) is also provided with the oil pumping passage (2) be equipped with described filter installation portion, it is characterized in that
Described filter installation portion is provided with the filter according to any one of claim 1 to 7, first filter screen (40) of described filter is equipped with in the ingress of described oil pumping passage (2) away from the end of described electric-conducting stem (20) and insulate with described pool wall isolates;
Described motor also comprises warning device, and described warning device is connected in series with the first signal end and secondary signal end being connected to described metal fillings detection device two ends.
CN201210208598.4A 2012-06-21 2012-06-21 Filter and engine with same Active CN102705039B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210208598.4A CN102705039B (en) 2012-06-21 2012-06-21 Filter and engine with same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210208598.4A CN102705039B (en) 2012-06-21 2012-06-21 Filter and engine with same

Publications (2)

Publication Number Publication Date
CN102705039A CN102705039A (en) 2012-10-03
CN102705039B true CN102705039B (en) 2014-12-24

Family

ID=46898060

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210208598.4A Active CN102705039B (en) 2012-06-21 2012-06-21 Filter and engine with same

Country Status (1)

Country Link
CN (1) CN102705039B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113702059A (en) * 2021-09-17 2021-11-26 中国联合重型燃气轮机技术有限公司 Lubricating oil filter for gas turbine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2245123Y (en) * 1996-06-06 1997-01-15 许京凤 Automatic detecting alarm filter for engine oil impurity
JP2004354082A (en) * 2003-05-27 2004-12-16 Suzuki Motor Corp Engine oil deterioration detection device
CN101025101A (en) * 2006-02-21 2007-08-29 陈明山 Fault detector of IC engine
CN201179381Y (en) * 2008-03-10 2009-01-14 刘威 Electrostatic oil remover
EP2090759A1 (en) * 2008-02-13 2009-08-19 Turbomeca Pre-signalling magnetic plug
CN201454246U (en) * 2009-03-26 2010-05-12 窦淑敏 Lubricate oil filtering device with pluralities of electrode plates
CN202250296U (en) * 2011-08-22 2012-05-30 四川新川航空仪器有限责任公司 Metal-scraps treating and controlling system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2245123Y (en) * 1996-06-06 1997-01-15 许京凤 Automatic detecting alarm filter for engine oil impurity
JP2004354082A (en) * 2003-05-27 2004-12-16 Suzuki Motor Corp Engine oil deterioration detection device
CN101025101A (en) * 2006-02-21 2007-08-29 陈明山 Fault detector of IC engine
EP2090759A1 (en) * 2008-02-13 2009-08-19 Turbomeca Pre-signalling magnetic plug
CN201179381Y (en) * 2008-03-10 2009-01-14 刘威 Electrostatic oil remover
CN201454246U (en) * 2009-03-26 2010-05-12 窦淑敏 Lubricate oil filtering device with pluralities of electrode plates
CN202250296U (en) * 2011-08-22 2012-05-30 四川新川航空仪器有限责任公司 Metal-scraps treating and controlling system

Also Published As

Publication number Publication date
CN102705039A (en) 2012-10-03

Similar Documents

Publication Publication Date Title
CN102705039B (en) Filter and engine with same
CN105492911A (en) An electrical protection device and a method of providing electrical protection
CN204906075U (en) Terminal box convenient to installation wiring
CN102623900A (en) Intelligent two-way sleeve for monitoring pressure, temperature and moisture on line in real time
CN202747526U (en) Water trough-separating humidifier and separating water trough for humidifier
CN202724800U (en) Centrifugal-type rainwater collection filter
CN101651313A (en) Multifunctional lightning prevention junction cabinet
CN106402754A (en) Intelligent bathroom lamp with humidity warning device
CN202282527U (en) Direct current blocking radio frequency connector
CN210094781U (en) Alarm device for safety helmet near-electric induction
JP6292847B2 (en) Oil separator of oil-cooled compressor
CN103513089A (en) Electrified display sensor
CN203347973U (en) Diesel oil filter with alarming device
CN106353568A (en) Domestic multifunctional intelligent distribution box
CN106254945A (en) Control the method and device of television set
CN206785529U (en) The water level alarm of diesel fuel filter heater
CN101713806B (en) Ground wire automatic monitoring device
CN205829121U (en) A kind of spark gap of tape jam instruction
CN206785531U (en) A kind of water level alarm for diesel fuel filter heater
CN205319113U (en) Circuit breaker separate arc wall mounting structure
CN107725229B (en) Vehicle air filter with wireless monitoring and early warning device
CN104505612A (en) Grounding terminal fixing assembly and refrigerator
CN104617511A (en) Novel distribution station safety monitoring device
CN217361999U (en) Integral type wiring structure and integral type binding post
CN216288236U (en) Circuit breaker

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
CP01 Change in the name or title of a patent holder

Address after: 412002 Dong Jiaduan, Zhuzhou, Hunan

Patentee after: China Hangfa South Industrial Co. Ltd.

Address before: 412002 Dong Jiaduan, Zhuzhou, Hunan

Patentee before: China Southern Airlines Industry (Group) Co., Ltd.

CP01 Change in the name or title of a patent holder