CN110098594A - A kind of intelligent overvoltage protection - Google Patents
A kind of intelligent overvoltage protection Download PDFInfo
- Publication number
- CN110098594A CN110098594A CN201910471224.3A CN201910471224A CN110098594A CN 110098594 A CN110098594 A CN 110098594A CN 201910471224 A CN201910471224 A CN 201910471224A CN 110098594 A CN110098594 A CN 110098594A
- Authority
- CN
- China
- Prior art keywords
- overvoltage protection
- protection shell
- ontology
- protection
- cabinet
- 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.)
- Withdrawn
Links
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 abstract description 17
- 238000009434 installation Methods 0.000 abstract description 16
- 230000009471 action Effects 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002633 protecting effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/20—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage
Landscapes
- Casings For Electric Apparatus (AREA)
Abstract
The invention belongs to technical field of electric equipment; in particular a kind of intelligent overvoltage protection; including overvoltage protection ontology; the outside of the overvoltage protection ontology is equipped with protection shell; the overvoltage protection ontology is fixedly mounted in the inner cavity of the protection shell; the protection shell is equipped with lid far from one end of the overvoltage protection ontology, and the lid is fixed by hinge and the protection housing hinge;And installation fixation is carried out by the attachment base in the mounting base and wall on protection shell; becoming the fixed mode of bolt becomes being connected together; so that the installation and removal enhanced convenience of overvoltage protection ontology; and the knob on rotation connection seat can be passed through; mounting base can be fixedly mounted on attachment base; so that maintenance personal can carry out installation and replacement to overvoltage protection ontology in the case where the tool of not using, it is easy to operate and time saving and energy saving.
Description
Technical field
The invention belongs to technical field of electric equipment, and in particular to a kind of intelligent overvoltage protection.
Background technique
Overvoltage protection is exactly to make a kind of protected mode of protective device movement when voltage is more than predetermined maximum.When
Protective device starting when being more than some numerical value adjusted in advance by the voltage in protection original part is flowed through, and with time limit safety action
Selectivity, make circuit breaker trip or provide alarm signal.
Existing state's voltage protection ontology has small in size, simple installation, and technical performance is special, position is fixed, and matches
Set that function is unique, is not limited by place, application is commonplace, and stable operation is reliable, and space utilization rate is high, and land occupation less and has ring
The characteristics of protecting effect, but existing overvoltage protection ontology, when carrying out installing fixed, generally passing through bolt will be excessively electric
Pressure protective device ontology is embedded in wall, and when overvoltage protection ontology damages, maintenance personal is by using work
Overvoltage protection ontology is carried out disassembly installation by tool, not only time-consuming and laborious, and is not easy to maintenance personal to overvoltage protection
The installation and replacement of device noumenon.
Summary of the invention
To solve the problems mentioned above in the background art.The present invention provides a kind of intelligent overvoltage protection,
Have the characteristics that structure is simple, easy for installation.
To achieve the above object, the invention provides the following technical scheme: a kind of intelligent overvoltage protection, including mistake
Voltage protection ontology, the outside of the overvoltage protection ontology are equipped with protection shell, the overvoltage protection
Ontology be fixedly mounted on it is described protection shell inner cavity in, it is described protection shell far from the overvoltage protection ontology one
End is equipped with lid, and the lid is fixed by hinge and the protection housing hinge, and the protection shell is far from the lid
Side be equipped with mounting base, and the mounting base other side be equipped with attachment base, the protection shell by the mounting base with connect
Seat connection, the attachment base includes cabinet and supporting plate, and the supporting plate is fixedly mounted on the inner cavity left side wall of the cabinet, described
Supporting plate is equipped with driven wheel of differential far from the side of the cabinet, and the top and bottom of the driven wheel of differential is fixedly installed with spiral shell
Bar, the driven wheel of differential are rotatablely connected by two screw rods through the supporting plate and supporting plate, and the screw rod is far from described
One end of driven wheel of differential is equipped with bolt sleeve, and the bolt sleeve is socketed on the screw rod, a left side for the driven wheel of differential
Side is equipped with drive bevel gear, and the drive bevel gear engages connection with the driven wheel of differential, and the drive bevel gear is far from institute
The one end for stating driven wheel of differential is fixedly connected through the cabinet with knob by connecting rod.
Preferably, the mounting base is equipped with inserted link, and the cabinet is equipped with jack compatible with the inserted link, described
Mounting base is plugged and fixed through jack with the attachment base by inserted link.
Preferably, the inserted link is equipped with hole compatible with the bolt sleeve, and the inserted link passes through described hole
It is plugged and fixed with the bolt sleeve.
Preferably, sliding block is fixedly installed on the bolt sleeve, the cabinets cavity bottom is equipped with and the sliding block phase
The sliding slot of adaptation, the bolt sleeve are connect by the sliding block, the sliding slot with the box body-sliding.
Preferably, the top and bottom two sidewalls of the protection shell offer several wire holes.
Preferably, the inner cavity top of the protection shell and bottom are fixedly installed with several headlamps, the photograph
Bright lamp intersects corresponding setting with the wire hole.
Preferably, the right side wall of the protection shell is equipped with containing box, and the containing box passes through sliding rail and the protection
The right side wall of shell is slidably connected, and knob is fixedly installed on front side of the containing box.
Preferably, the top and bottom of the attachment base is fixedly installed with fixing seat, offered in the fixing seat with
Bolt hole, the fixing seat are threadedly coupled by bolt hole described in bolt-through with wall.
Compared with prior art, the beneficial effects of the present invention are:
In the present invention, by being equipped with protection shell in the outside of overvoltage protection ontology, and pass through the peace on protection shell
Attachment base on dress seat and wall carries out installation fixation, and becoming the fixed mode of bolt becomes being connected together, so that overvoltage protection
The installation and removal enhanced convenience of device noumenon, and mounting base can be fixed by the knob on rotation connection seat
It is mounted on attachment base, so that maintenance personal can pacify overvoltage protection ontology in the case where the tool of not using
Dress replacement, it is easy to operate and time saving and energy saving.
In the present invention, by protection shell on be equipped with headlamp and containing box, when to overvoltage protection ontology into
It can be that maintenance personal enhances intensity of illumination by opening headlamp, consequently facilitating maintenance personal is to overvoltage protection when row maintenance
The maintenance of device noumenon, and by pulling knob to extract containing box out, so that the maintenance tool in containing box is taken out, it is convenient
The use of staff.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the structural diagram of the present invention;
Fig. 2 is mounting base and attachment base connection schematic diagram in the present invention;
Fig. 3 is the attachment base top view in the present invention.
In figure: 1, overvoltage protection ontology;2, shell is protected;3, lid;4, wire hole;5, headlamp;6, it stores
Case;7, it shakes hands;8, mounting base;81, inserted link;82, hole;9, attachment base;91, cabinet;92, supporting plate;93, driven wheel of differential;94,
Screw rod;95, bolt sleeve;96, jack;97, knob;98, drive bevel gear;10, fixing seat;101, bolt hole;11, sliding block.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1-3, the present invention is the following technical schemes are provided: a kind of intelligent overvoltage protection, including when electricity
When voltage is excessive in road, can automatic trip cutting circuit overvoltage protection ontology 1, overvoltage protection ontology 1
Equipped with protection shell 2, protection shell 2 is used to carry out overvoltage protection ontology 1 protection and dust-proof, overvoltage guarantor in outside
Protection unit ontology 1 is fixedly mounted in the inner cavity of protection shell 2, protects the one end of shell 2 far from overvoltage protection ontology 1
Equipped with lid 3, overvoltage protection ontology 1 is fixed in the inner cavity of protection shell 2 by lid 3, protection shell 2, it is right
Overvoltage protection ontology 1 is protected, and lid 3 is hingedly fixed by hinge and protection shell 2, and protection shell 2 is far from lid
The side of son 3 is equipped with mounting base 8, and 8 other side of mounting base is equipped with attachment base 9, and protection shell 2 passes through mounting base 8 and attachment base 9
Connection carries out installation fixation by the mounting base 8 on protection shell 2 and the attachment base 9 on wall, becomes the fixed mode of bolt and becomes
To be connected together, so that the installation and removal enhanced convenience of overvoltage protection ontology 1, attachment base 9 includes 91 He of cabinet
Supporting plate 92, supporting plate 92 are fixedly mounted on the inner cavity left side wall of cabinet 91, and supporting plate 92 is equipped with far from the side of cabinet 91 from mantle
Gear 93, the top and bottom of driven wheel of differential 93 are fixedly installed with screw rod 94, and driven wheel of differential 93 passes through two screw rods 94
It is rotatablely connected through supporting plate 92 and supporting plate 92, screw rod 94 is equipped with bolt sleeve 95, pin bushing far from one end of driven wheel of differential 93
Cylinder 95 is socketed on screw rod 94, and the left side of driven wheel of differential 93 is equipped with drive bevel gear 98, drive bevel gear 98 with from mantle tooth
93 engagement connection of wheel, the one end of drive bevel gear 98 far from driven wheel of differential 93 are solid through cabinet 91 and knob 97 by connecting rod
Fixed connection, staff drives drive bevel gear 98 actively by manual turning knob 97, under the action of drive bevel gear 98,
Driven wheel of differential 93 drives two screw rods 94 to rotate, and the hand of spiral of two screw rods 94 is on the contrary, in sliding block 11 and screw rod 94
Under interaction, two bolt sleeves 95 in the opposite direction or relative movement.
Specifically, mounting base 8 is equipped with inserted link 81, cabinet 91 is equipped with jack 96 compatible with inserted link 81, mounting base 8
It is plugged and fixed through jack 96 with attachment base 9 by inserted link 81;After shell 2 and the installation of mounting base 8 will be protected fixed, pass through
8 upper plunger 81 of mounting base is inserted into jack 96 on attachment base 9, to mounting base 8 and the position of attachment base 9 be positioned, just
It is inserted on inserted link 81 in bolt sleeve 95.
Specifically, inserted link 81 is equipped with hole 82 compatible with bolt sleeve 95, inserted link 81 passes through hole 82 and bolt
Sleeve 95 is connected together;By hole 82 of two bolt sleeves 95 on inserted link 81, thus by mounting base 8 and attachment base 9
It is plugged and fixed, realizes protection shell 2 and connect with the installation of wall.
Specifically, being fixedly installed with sliding block 11 on bolt sleeve 95,91 intracavity bottom of cabinet is equipped with and is adapted with sliding block 11
Sliding slot, bolt sleeve 95 is slidably connected by sliding block 11, sliding slot and cabinet 91;Sliding block 11 being moved through in bolt sleeve 95
Cheng Zhong is oriented to bolt sleeve 95, so that relative displacement is occurred for bolt sleeve 95 and screw rod 94.
Specifically, the top and bottom two sidewalls of protection shell 2 offer several wire holes 4;Wire hole 4 was used for
Voltage protection ontology 1 is electrically connected with external power supply, by protective device.
Specifically, the inner cavity top of protection shell 2 and bottom are fixedly installed with several headlamps 5, headlamp 5 and electric wire
Hole 4 intersects corresponding setting;It can be maintenance people by opening headlamp 5 when being repaired to overvoltage protection ontology 1
Member's enhancing intensity of illumination, consequently facilitating maintenance of the maintenance personal to overvoltage protection ontology 1.
Specifically, the right side wall of protection shell 2 is equipped with containing box 6, the right side that containing box 6 passes through sliding rail and protection shell 2
Side walls connection, the front side of containing box 6 is fixedly installed with knob 7;By pulling knob 7 to extract containing box 6 by sliding rail out,
To take out the maintenance tool in containing box 6, the use of staff is facilitated.
Specifically, the top and bottom of attachment base 9 is fixedly installed with fixing seat 10, offered in fixing seat 10 and bolt
Hole 101, fixing seat 10 are threadedly coupled by bolt-through bolt hole 101 with wall;Bolt hole 101 is used for attachment base 9 and wall
Carry out installation fixation.
The working principle of the invention and process for using: after the present invention installs, by the spiral shell in bolt-through fixing seat 10
Keyhole 101 completely opens lid 3, overvoltage protection ontology 1 is passed through so that attachment base 9 is fixedly mounted on wall
Bolt is mounted in the inner cavity of protection shell 2, is then passed through after shell 2 and the installation of mounting base 8 will be protected fixed, by that will install
Jack 96 on seat 8 upper plungers 81 insertion attachment base 9, to mounting base 8 and the position of attachment base 9 be positioned, then manually
Turning knob 97 drives drive bevel gear 98 actively, and under the action of drive bevel gear 98, driven wheel of differential 93 drives two spiral shells
Bar 94 rotates, and the hand of spiral of two screw rods 94 is on the contrary, under the interaction of sliding block 11 and screw rod 94, two bolt sleeves
95 in the opposite direction or relative movement, thus the hole 82 by two bolt sleeves 95 on the inserted link 81, thus will peace
Dress seat 8 is connected together with attachment base 9, realizes protection shell 2 and connect with the installation of wall, is installed, when needs pair
It can be that maintenance personal enhances intensity of illumination by opening headlamp 5, thus just when overvoltage protection ontology 1 repairs
In maintenance of the maintenance personal to overvoltage protection ontology 1, by pulling knob 7 to extract containing box 6 by sliding rail out, thus
Maintenance tool in containing box 6 is taken out, the use of staff is facilitated.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (8)
1. a kind of intelligent overvoltage protection, including overvoltage protection ontology (1), it is characterised in that: described excessively electric
The outside of protective device ontology (1) is pressed to be equipped with protection shell (2), the overvoltage protection ontology (1) is fixedly mounted on institute
In the inner cavity for stating protection shell (2), protection shell (2) is equipped with far from one end of the overvoltage protection ontology (1)
Lid (3), the lid (3) is hingedly fixed by hinge and the protection shell (2), and the protection shell (2) is far from described
The side of lid (3) is equipped with mounting base (8), and the mounting base (8) other side is equipped with attachment base (9), the protection shell (2)
It is connect by the mounting base (8) with attachment base (9), the attachment base (9) includes cabinet (91) and supporting plate (92), the supporting plate
(92) it is fixedly mounted on the inner cavity left side wall of the cabinet (91), the supporting plate (92) sets far from the side of the cabinet (91)
Have driven wheel of differential (93), the top and bottom of the driven wheel of differential (93) is fixedly installed with screw rod (94), described driven
Bevel gear (93) is rotatablely connected by two screw rods (94) through the supporting plate (92) and supporting plate (92), the screw rod (94)
One end far from the driven wheel of differential (93) is equipped with bolt sleeve (95), and the bolt sleeve (95) is socketed in the screw rod
(94) on, the left side of the driven wheel of differential (93) is equipped with drive bevel gear (98), the drive bevel gear (98) and it is described from
Dynamic bevel gear (93) engagement connection, the drive bevel gear (98) pass through connecting rod far from the one end of the driven wheel of differential (93)
It is fixedly connected through the cabinet (91) with knob (97).
2. a kind of intelligent overvoltage protection according to claim 1, it is characterised in that: on the mounting base (8)
Equipped with inserted link (81), the cabinet (91) is equipped with the inserted link (81) compatible jack (96), and the mounting base (8) is logical
Inserted link (81) are crossed to be plugged and fixed through jack (96) with the attachment base (9).
3. a kind of intelligent overvoltage protection according to claim 2, it is characterised in that: set on the inserted link (81)
There is the compatible hole (82) with the bolt sleeve (95), the inserted link (81) passes through described hole (82) and the pin bushing
Cylinder (95) is plugged and fixed.
4. a kind of intelligent overvoltage protection according to claim 1, it is characterised in that: the bolt sleeve (95)
On be fixedly installed with sliding block (11), cabinet (91) intracavity bottom be equipped with the sliding block (11) compatible sliding slot, it is described
Bolt sleeve (95) is slidably connected by the sliding block (11), the sliding slot with the cabinet (91).
5. a kind of intelligent overvoltage protection according to claim 1, it is characterised in that: the protection shell (2)
Top and bottom two sidewalls offer several wire holes (4).
6. a kind of intelligent overvoltage protection according to claim 5, it is characterised in that: the protection shell
(2) inner cavity top and bottom is fixedly installed with several headlamps (5), and the headlamp (5) is intersected with the wire hole (4)
Corresponding setting.
7. a kind of intelligent overvoltage protection according to claim 1, it is characterised in that: the protection shell (2)
Right side wall be equipped with containing box (6), the containing box (6) by sliding rail and it is described protection shell (2) right side wall slide connect
It connects, is fixedly installed with knob (7) on front side of the containing box (6).
8. a kind of intelligent overvoltage protection according to claim 1, it is characterised in that: the attachment base (9)
Top and bottom is fixedly installed with fixing seat (10), is offered on the fixing seat (10) and bolt hole (101), the fixation
Seat (10) is threadedly coupled by bolt hole (101) described in bolt-through with wall.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910471224.3A CN110098594A (en) | 2019-05-31 | 2019-05-31 | A kind of intelligent overvoltage protection |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910471224.3A CN110098594A (en) | 2019-05-31 | 2019-05-31 | A kind of intelligent overvoltage protection |
Publications (1)
Publication Number | Publication Date |
---|---|
CN110098594A true CN110098594A (en) | 2019-08-06 |
Family
ID=67449915
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910471224.3A Withdrawn CN110098594A (en) | 2019-05-31 | 2019-05-31 | A kind of intelligent overvoltage protection |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110098594A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111405783A (en) * | 2020-04-14 | 2020-07-10 | 南京安立特电子科技有限公司 | Be applied to unmanned aerial vehicle's remote controller casing |
CN113479945A (en) * | 2021-04-29 | 2021-10-08 | 内蒙古兴田水环境科学技术研究院 | Filtering device for converting mine water into domestic water |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1080438A (en) * | 1992-04-03 | 1994-01-05 | 惠特克公司 | Be used for the protector module of telephone line junction box and the method for protective circuit |
CN207975697U (en) * | 2018-02-26 | 2018-10-16 | 广东顺德佰之朗电器有限公司 | A kind of air channel structure of electromagnetic oven |
CN108808647A (en) * | 2018-07-25 | 2018-11-13 | 安徽硕日光电科技有限公司 | A kind of secondary overvoltage protector |
CN209805403U (en) * | 2019-05-31 | 2019-12-17 | 安徽明远电力设备制造有限公司 | Intelligent overvoltage protection device |
-
2019
- 2019-05-31 CN CN201910471224.3A patent/CN110098594A/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1080438A (en) * | 1992-04-03 | 1994-01-05 | 惠特克公司 | Be used for the protector module of telephone line junction box and the method for protective circuit |
CN207975697U (en) * | 2018-02-26 | 2018-10-16 | 广东顺德佰之朗电器有限公司 | A kind of air channel structure of electromagnetic oven |
CN108808647A (en) * | 2018-07-25 | 2018-11-13 | 安徽硕日光电科技有限公司 | A kind of secondary overvoltage protector |
CN209805403U (en) * | 2019-05-31 | 2019-12-17 | 安徽明远电力设备制造有限公司 | Intelligent overvoltage protection device |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111405783A (en) * | 2020-04-14 | 2020-07-10 | 南京安立特电子科技有限公司 | Be applied to unmanned aerial vehicle's remote controller casing |
CN111405783B (en) * | 2020-04-14 | 2021-10-01 | 南京安立特电子科技有限公司 | Be applied to unmanned aerial vehicle's remote controller casing |
CN113479945A (en) * | 2021-04-29 | 2021-10-08 | 内蒙古兴田水环境科学技术研究院 | Filtering device for converting mine water into domestic water |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN110098594A (en) | A kind of intelligent overvoltage protection | |
CN108224259A (en) | A kind of LED energy-saving lamps | |
CN209943944U (en) | Building security protection supervisory equipment | |
CN109973907A (en) | A kind of environment-friendly and energy-efficient LED light being easily installed disassembly | |
CN212537666U (en) | Lifting device for be used for electric power construction | |
CN209805403U (en) | Intelligent overvoltage protection device | |
CN205938850U (en) | Over -and -under type lamp pole tower of enough quick installations of ability | |
CN213065828U (en) | Workshop lighting device with lifting adjusting function | |
CN108204542A (en) | A kind of LED energy conserving lamp | |
CN207438441U (en) | A kind of city illumination street lamp | |
CN215932764U (en) | Multimode security alarm lighting equipment | |
CN218720843U (en) | Dimming LED track lamp | |
CN210410959U (en) | Impact crusher slowly-transmitting mechanism | |
CN214890997U (en) | Commercial lamp convenient to change | |
CN208794128U (en) | A kind of eye-protecting desk lamp of novel belt anion | |
CN214012174U (en) | Reminding device for mechanical maintenance | |
CN217529572U (en) | Electric welding machine used for maintaining work bin and convenient to overhaul | |
CN219082983U (en) | Emergency lighting device for electric power rush-repair | |
CN108087808B (en) | A kind of town road LEDy street lamp device | |
CN220201289U (en) | Discharge valve removes maintenance platform with raising and lowering functions | |
CN216487191U (en) | Make things convenient for warning sign for building security protection of warning at night | |
CN213656674U (en) | Portable ultraviolet lamp | |
CN218203982U (en) | A warning sign for electric power construction warning effect | |
CN213777598U (en) | LED lamp shade convenient to dismouting | |
CN115308460B (en) | Intelligent household ammeter and working method thereof |
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 | ||
WW01 | Invention patent application withdrawn after publication | ||
WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190806 |