CN109273301A - power-off protection device and electrical equipment - Google Patents
power-off protection device and electrical equipment Download PDFInfo
- Publication number
- CN109273301A CN109273301A CN201811324870.9A CN201811324870A CN109273301A CN 109273301 A CN109273301 A CN 109273301A CN 201811324870 A CN201811324870 A CN 201811324870A CN 109273301 A CN109273301 A CN 109273301A
- Authority
- CN
- China
- Prior art keywords
- switch
- power
- cassette holder
- protection apparatus
- derailing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009434 installation Methods 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 4
- 210000003195 fascia Anatomy 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000000926 separation method Methods 0.000 abstract description 3
- 206010014357 Electric shock Diseases 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
Landscapes
- Switch Cases, Indication, And Locking (AREA)
Abstract
The invention discloses a power-off protection device for electrical equipment, which comprises a front shell, a rear shell and a rear net, wherein the rear net is arranged on the rear shell, the power-off protection device comprises a switch device arranged in the electrical equipment, the switch device is provided with a button, a switch trigger component is arranged on the rear net, and when the rear net is taken down from the rear shell, the switch trigger component on the rear net is separated from the button of the switch device, so that the switch device breaks a circuit. The power-off protection device can ensure that a user can not get an electric shock hazard when forgetting to clean the tower fan when power-off, the power-off protection device is arranged in the tower fan more safely, the power-off protection device is simple, convenient and reliable to install, a switch in the power-off protection device is arranged in the switch box assembly, so that the switch is more reliably protected in the switch box assembly, and the switch box assembly is provided with a plurality of independent wire passing channels for strong current and weak current to pass through, so that the separation of strong current and weak current can be realized.
Description
Technical field
The invention belongs to power-off protection apparatus technical field more particularly to a kind of power-off protection apparatus for tower fan.
Background technique
Tower fan is also known as convection fan, it is to allow indoor and outdoor air to form three-dimensional exchange system, i.e., according to aerodynamics principle
Make no fan page that can similarly blow, tower fan can be formed indoors airflow circulating and can 360 degrees omnidirection blow, allow room without
Air-supply dead angle, allows people to be comfortable on, and is especially suitable for old man and child uses.
In the long-term use, tower fan easily accumulation dust, therefore need that the wind wheel that tower is fanned periodically is disassembled cleaning.For
It realizes the washable of tower pectinid wheel, power-off protection apparatus namely switch button need to be configured.Net clears up fuselage when user dismantles after
When internal, switch button need to be disconnected, complete machine is made to stop operating, to protect user security.
In existing tower fan, wind wheel is mostly non-dismountable connection structure, therefore can not achieve wind wheel cleaning.For disassembly
The tower pectinid wheel of connection, user are easy to forget to fan tower into complete machine power-off, are easy to happen touching after disassembly tower pectinid wheel cleans
It is electric dangerous, and the switch button in tower fan can only realize that light current is protected mostly, not can be carried out strong and weak electricity separation, and switch button
Mounting structure is complicated, assembling production efficiency is low.
Summary of the invention
To solve above-mentioned the problems of the prior art, the present invention provides a kind of power-off protection apparatus and electrical equipments.
To achieve the above object, the specific technical solution of power-off protection apparatus of the invention and electrical equipment is as follows:
A kind of power-off protection apparatus is used for electrical equipment, and the electrical equipment includes front housing, rear shell and rear net, described
Net is installed in the rear shell afterwards, and the power-off protection apparatus includes the derailing switch being arranged in electrical equipment, the derailing switch
With button, it is provided with switch triggering component on the net after described, it is rear online when net is removed from the rear shell after will be described
The switch triggering component is detached from the button of derailing switch, so that the derailing switch disconnecting circuit.
It further, further include switch case assembly, the derailing switch is mounted in the switch case assembly, is equipped with derailing switch
The switch case assembly be connected in electrical equipment.
Further, the derailing switch be connected to electrical equipment the front housing or the rear shell.
Further, the derailing switch includes Switch main body and button, and the switch case assembly includes switch cassette holder and switch
Box cover, the switch cassette holder is internal after connecting with the switch enclosure cover to form the accommodating chamber for accommodating the derailing switch, the switch
Ontology is contained in the accommodating chamber, and the button of derailing switch is stretched out from the accommodating chamber.
Further, it is provided with guide groove on the Switch main body, is provided with guiding rib, Switch main body on the switch cassette holder
On the guide groove can with switch cassette holder the guiding rib be cooperatively connected, the guiding rib can be by the guide groove to institute
It states Switch main body and is oriented to and is limited fixation, the derailing switch is installed on the switch cassette holder.
Further, the inner wall of the switch cassette holder and the switch enclosure cover has been respectively formed on limit rib, the switch cassette holder
After connecting with the switch enclosure cover, the outer wall side that the limit rib on cassette holder and switch enclosure cover squeezes the Switch main body is switched
Edge, so that the derailing switch is fixed between the switch cassette holder and the switch enclosure cover.
Further, it is provided with the first buckle on the switch cassette holder, the second buckle is provided on switch enclosure cover, switch cassette holder
It by first buckle and the second buckle card and is connect with switch enclosure cover.
Further, first buckle and second buckle include multiple, and first buckle is evenly arranged on described open
The edge of cassette holder is closed, second buckle is evenly arranged on the edge of the switch enclosure cover.
Further, it is formed with that the forceful electric power being separated from each other crosses thread path and light current crosses thread path, institute on the switch case assembly
It states forceful electric power and crosses thread path and cross thread path with the light current and be isolated from each other, set with carrying out subregion to forceful electric power route and light current route
It sets.
Further, the switch cassette holder includes cassette holder slot and the first crossed beam trunking, and first is provided on the cassette holder slot and crosses line
Mouthful, the switch enclosure cover includes box cover slot and the second crossed beam trunking, be provided with the second thread passing port on the box cover slot, switch enclosure cover with
Switch after cassette holder is connected, first crossed beam trunking and second crossed beam trunking formed the closing walked for forceful electric power route line it is logical
Road, first thread passing port and second thread passing port, which are formed, crosses line three-way hole for what light current route was walked.
It further, further include support plate in electrical equipment, the derailing switch being mounted in the switch case assembly passes through
The support plate is installed in electrical equipment, and the electrical equipment is tower fan.
Further, the support plate has holding tank, and the bottom of the switch cassette holder is provided with hook, switchs the institute of cassette holder
State hook can with the bottom margin card of the holding tank and connect so that the switch cassette holder to be installed in the holding tank.
Further, flange is provided on the bottom margin of holding tank, the bottom of the switch cassette holder is installed to described
When on the flange of holding tank, the hook of the switch cassette holder blocks the bottom of the holding tank.
Further, it is additionally provided with trigger assembly connection frame in the rear shell, there is empty avoiding on the trigger assembly connection frame
Slot, the rear online switch triggering component may pass through the button of the avoiding hollow groove contact squeeze derailing switch to connect institute
The circuit of derailing switch is stated, the switch triggering component is switch triggering pressing plate.
According to another aspect of the present invention, a kind of electrical equipment is also disclosed, there is shell, the shell includes at least the
One shell and second shell are provided with above-mentioned power-off protection apparatus in the electrical equipment, and the power-off protection apparatus includes
Derailing switch in electrical equipment is set, the derailing switch has button, is provided with switch triggering component in the second shell,
When removing the second shell from the first shell, the switch triggering component in second shell is detached from derailing switch
The button so that the derailing switch disconnecting circuit.
Further, the electrical equipment is tower fan.
Power-off protection apparatus of the invention can ensure that user cleans tower fan in the case where forgetting power blackout situation and there will not be electric shock danger
Danger, power-off protection apparatus are installed on tower and fan internal safer, power-off protection apparatus simple installation, reliable, power-off protection apparatus
In derailing switch be installed to switch case assembly in, make derailing switch switch case assembly in by more reliable protection, switch enclosure group
Part is with multiple independent passing channels walked for forceful electric power and light current, it can be achieved that the separation of strong and weak electricity, avoids two kinds of wiring circuit contacts
The safety accident caused.
Detailed description of the invention
Fig. 1 is the tower fan structure schematic diagram for being equipped with power-off protection apparatus of the present invention;
Fig. 2 is the partial cutaway view at power-off protection apparatus position in Fig. 1;
Fig. 3 is the mounting structure schematic diagram of power-off protection apparatus of the present invention;
Fig. 4 is the switch case assembly in power-off protection apparatus of the present invention;
Fig. 5 is the switch cassette holder in present invention switch case assembly;
Fig. 6 is the switch enclosure cover in present invention switch case assembly;
Fig. 7 is the support plate for installing switch case assembly of the invention;
Fig. 8 is the sectional view for being equipped with the support plate of switch case assembly.
Specific embodiment
In order to be best understood from the purpose of the present invention, structure and function, with reference to the accompanying drawing, to power-off protection of the invention
Device does further detailed description.
Power-off protection apparatus of the invention is described so that tower is fanned as an example below, it should be noted, however, that power-off of the invention is protected
Protection unit can also be used in other electrical equipments.
As shown in Figure 1, tower fan of the invention includes that front housing 10, rear shell 20 and rear net 30, rear net 30 are mounted on rear shell 20
On, rear shell 20 and front housing 10 are connected to form the shell that tower is fanned.Power-off protection apparatus includes the derailing switch 60 being arranged in tower fan, is opened
Closing device 60 has button 61, is provided with switch triggering component on rear net 30, when rear net 30 is removed from rear shell 20, rear net 30
On switch triggering component be detached from derailing switch 60 button 61 so that 60 disconnecting circuit of derailing switch.Above-mentioned power-off protection apparatus
Derailing switch 60 is preferably provided in front housing 10 or the rear shell 20 of tower fan, such as the inside portion of tower fan front housing 10 or rear shell 20.
As shown in Fig. 4-6 and Fig. 8, power-off protection apparatus further includes switch case assembly 50, and derailing switch 60 is mounted on switch enclosure
In component 50, the switch case assembly 50 for being equipped with derailing switch 60 is connected in front housing 10 or the rear shell 20 of tower fan.
Above-mentioned derailing switch 60 includes Switch main body and button 61, is provided with guide groove 62, above-mentioned switch enclosure on Switch main body
Component 50 includes that switch cassette holder 51 and switch enclosure cover 52 switch cassette holder 51 and open after switching cassette holder 51 and the connection of switch enclosure cover 52
The accommodating chamber for being formed between box cover 52 and accommodating derailing switch 60 is closed, Switch main body is contained in accommodating chamber.Switch shape on case assembly 50
At there is opening, the opening is connected to accommodating chamber, and button 61 stretches out accommodating chamber by opening, namely stretches out switch case assembly 50.
It is provided with guiding rib 511 on switch cassette holder 51, the guide groove 62 on Switch main body can cooperate with the guiding rib 511 of switch cassette holder 51
Connection, guiding rib can be oriented to and be limited to Switch main body fixation by guide groove, derailing switch 60 is installed to switch enclosure
On seat 51, so that derailing switch 60 be made to be installed in switch case assembly 50 by the guide groove on Switch main body.Switch 51 He of cassette holder
The inner wall of switch enclosure cover 52 has been respectively formed on limit rib 512,522, after switching cassette holder 51 and the connection of switch enclosure cover 52, switchs cassette holder
51 and switch enclosure cover 52 on limit rib 512,522 squeeze Switch main body fascia edge, so that derailing switch 60 is fixed on out
It closes between cassette holder 51 and switch enclosure cover 52.
Above-mentioned switch enclosure cover 52 is snapped connection with switch cassette holder 51, is switched and is provided with the first buckle 513 on cassette holder 51, switchs
It is provided with the second buckle 523, switch cassette holder 51 and switch enclosure cover 52 on box cover 52 and passes through the first buckle 513 and the second buckle 523
Card and connection.Including multiple, the first buckle 513 is evenly arranged on the edges of switch cassette holder 51 for first buckle 513 and the second buckle, the
Two buckles 523 are evenly arranged on the edge of switch enclosure cover 52.
It is formed with multiple independences on switch case assembly 50 and crosses thread path, is passed through respectively with electric wires different in Convenient switch device 60
Different thread paths of crossing extend, and avoid interfering with each other, such as are formed with forceful electric power on switch case assembly 50 and cross thread path and light current mistake
Thread path, forceful electric power, which crosses thread path and crosses thread path with light current, to be isolated from each other, and is set with carrying out subregion to forceful electric power route and light current route
It sets, the separately positioned avoidable two kinds of wiring circuit contacts of forceful electric power and light current is caused into security appliance accidents.
It switchs cassette holder 51 and switch enclosure cover 52 is L-shaped groove body, switch cassette holder 51 includes cassette holder slot and the first crossed beam trunking
514, the first thread passing port 515 is additionally provided on cassette holder slot, and the first thread passing port 515 may be provided at the side of the first crossed beam trunking 514, open
Closing box cover 52 includes box cover slot and the second crossed beam trunking 524, is additionally provided with the second thread passing port 525, the second thread passing port 525 on box cover slot
The side that may be provided at the second crossed beam trunking 524, after switch enclosure cover 52 is connected with switch cassette holder 51, the first crossed beam trunking 514 and the
Two crossed beam trunkings 524 form closing passing channel, and the first thread passing port 515 and the second thread passing port 525 formed line three-way hole, to facilitate out
It closes different electric wires in device 60 to pass through passing channel respectively and cross line three-way hole extension, carries out electric wire subregion to avoid mutually dry between electric wire
It disturbs.For example, being provided with forceful electric power terminal 63 and weakness terminal 64 on derailing switch 60, the forceful electric power terminal 63 is connected with forceful electric power route,
The light current terminal 64 is connected with light current route, and the electric wire of connection forceful electric power terminal extends via passing channel, connects light current terminal
Electric wire via cross line three-way hole extend.
It further include support plate 40 in tower fan as shown in Fig. 3 and Fig. 7-8, the support plate 40 is installed on front housing 10, switch
Device 60 is installed in tower fan by support plate 40, such as derailing switch 60 is mounted on front housing 10 by support plate 40.Support plate 40
Including connection frame and holding tank 41, holding tank 41 is connected to the end of connection frame and can be used for accommodating derailing switch 60.Preferably, it opens
It after pass device 60 is first installed in switch case assembly 50, then is installed in the holding tank 41 of support plate 40, switch case assembly 50 can be right
Derailing switch 60 plays the role of 60 electric wire of protection and directing switch device, to make the derailing switch being installed in switch case assembly 50
60 are mounted on front housing 10 by support plate 40.In addition, derailing switch 60 is also directly mounted in the holding tank 41 of support plate 40,
And it is mounted on front housing 10 by support plate 40.
Switch case assembly 50 is connected by switching cassette holder 51 with the holding tank 41 of support plate 40, and the bottom of switch cassette holder 51 is set
It is equipped with hook 516, the hook 516 for switching cassette holder 51 can block and connect with the bottom margin 42 of holding tank 41, open with clamping fixed
Close cassette holder 51.For example, flange is provided on the bottom margin 42 of the holding tank 41 of support plate 40, the bottom installation of switch cassette holder 51
When on to the flange of holding tank 41, the hook of switch cassette holder 51 blocks the bottom of holding tank 41.
Further, as shown in Fig. 2, being additionally provided with trigger assembly connection frame in rear shell 20, have on trigger assembly connection frame
Avoiding hollow groove 21, the switch triggering component on rear net 30 may pass through the button 61 of 21 contact squeeze derailing switch 60 of avoiding hollow groove, to connect
Circuit passband, trigger assembly connection frame can be pacified by net after the installation guidance of the switch triggering component on net 30 after guidance
Dress, while trigger assembly connection frame can guide the installation of rear shell and front housing, above-mentioned switch triggering group by alignment derailing switch
Part is preferably switch triggering pressing plate 31.
Therefore, using power-off protection apparatus of the invention, when user need to clean fuselage interior, first will after net 30 from rear shell
It is removed on 20, the button 61 of the disengaging derailing switch 60 of switch triggering pressing plate 31 on net 30, button 61 reset and make to switch afterwards at this time
60 circuit of device disconnects, it is ensured that user there will not be Danger Electric shock risk forgetting to pull out when power supply just cleans.It is retouched in the present invention
The card and connection structure stated, can also be replaced by screw fixation method, and the button 61 of derailing switch 60 may be any type of elasticity
Component, as long as the elastic parts can automatically reset when not squeezed by external force makes 60 disconnecting circuit of derailing switch.
The invention also discloses a kind of electrical equipment, which has shell, and the shell includes at least first shell
Body and second shell are provided with power-off protection apparatus in electrical equipment, and power-off protection apparatus includes being arranged in electrical equipment
Derailing switch, the derailing switch have button, are provided with switch triggering component in second shell, by second shell from described first
When removing on shell, the switch triggering component in second shell is detached from the button of derailing switch, so that the derailing switch disconnecting circuit,
Above-mentioned electrical equipment can be the common living electric apparatus equipment such as tower fan.
It is appreciated that the present invention is described by some embodiments, and what those skilled in the art knew, it is not taking off
In the case where from the spirit and scope of the present invention, various changes or equivalence replacement can be carried out to these features and embodiment.Separately
Outside, under the teachings of the present invention, can modify to these features and embodiment with adapt to particular situation and material without
The spirit and scope of the present invention can be detached from.Therefore, the present invention is not limited to the particular embodiment disclosed, and is fallen with
Embodiment within the scope of claims hereof belong to the present invention protect in the range of.
Claims (16)
1. a kind of power-off protection apparatus is used for electrical equipment, the electrical equipment includes front housing, rear shell and rear net, after described
Net is installed in the rear shell, which is characterized in that the power-off protection apparatus includes the derailing switch being arranged in electrical equipment, institute
Derailing switch is stated with button, is provided with switch triggering component on the net after described, when net is removed from the rear shell after will be described,
The online switch triggering component is detached from the button of derailing switch afterwards, so that the derailing switch disconnecting circuit.
2. power-off protection apparatus according to claim 1, which is characterized in that further include switch case assembly, the derailing switch
It is mounted in the switch case assembly, the switch case assembly for being equipped with derailing switch is connected in electrical equipment.
3. power-off protection apparatus according to claim 2, which is characterized in that the derailing switch is connected to the institute of electrical equipment
State front housing or the rear shell.
4. power-off protection apparatus according to claim 2, which is characterized in that the derailing switch include Switch main body and by
Button, the switch case assembly include switch cassette holder and switch enclosure cover, and the switch cassette holder is internal after connecting with the switch enclosure cover
Form the accommodating chamber for accommodating the derailing switch, the Switch main body is contained in the accommodating chamber, the button of derailing switch from
It is stretched out in the accommodating chamber.
5. power-off protection apparatus according to claim 4, which is characterized in that it is provided with guide groove on the Switch main body,
It is provided with guiding rib on the switch cassette holder, the guide groove on Switch main body can cooperate with the guiding rib of switch cassette holder
Connection, the guiding rib can be oriented to and be limited fixation to the Switch main body by the guide groove, by the switch
Device is installed on the switch cassette holder.
6. power-off protection apparatus according to claim 4, which is characterized in that the switch cassette holder and the switch enclosure cover
Inner wall has been respectively formed on limit rib, after the switch cassette holder is connected with the switch enclosure cover, switchs on cassette holder and switch enclosure cover
The limit rib squeezes the fascia edge of the Switch main body, so that the derailing switch is fixed on the switch cassette holder and described
Between switch enclosure cover.
7. power-off protection apparatus according to claim 4, which is characterized in that be provided with the first card on the switch cassette holder
It detains, the second buckle, switch cassette holder and switch enclosure cover is provided on switch enclosure cover and is buckled by first buckle and described second
Card and connection.
8. power-off protection apparatus according to claim 7, which is characterized in that first buckle and second buckle are equal
Including multiple, first buckle is evenly arranged on the edge of the switch cassette holder, and second buckle is evenly arranged on the switch enclosure cover
Edge.
9. power-off protection apparatus according to claim 4, which is characterized in that be formed on the switch case assembly and divide each other
From forceful electric power cross thread path and light current crosses thread path, the forceful electric power, which crosses thread path and crosses thread path with the light current, to be isolated from each other,
To carry out subregion setting to forceful electric power route and light current route.
10. power-off protection apparatus according to claim 9, which is characterized in that the switch cassette holder includes cassette holder slot and
One crossed beam trunking, is provided with the first thread passing port on the cassette holder slot, and the switch enclosure cover includes box cover slot and the second crossed beam trunking, described
The second thread passing port is provided on box cover slot, after switch enclosure cover is connected with switch cassette holder, first crossed beam trunking and second mistake
Wire casing forms the closing passing channel walked for forceful electric power route, and first thread passing port and second thread passing port are formed for light current
What route was walked crosses line three-way hole.
11. power-off protection apparatus according to claim 4, which is characterized in that it further include support plate in electrical equipment, installation
The derailing switch in the switch case assembly is installed in electrical equipment by the support plate, and the electrical equipment is tower
Fan.
12. power-off protection apparatus according to claim 11, which is characterized in that the support plate has holding tank, described
Switch cassette holder bottom be provided with hook, switch cassette holder the hook can with the bottom margin card of the holding tank and connect with
The switch cassette holder is installed in the holding tank.
13. power-off protection apparatus according to claim 12, which is characterized in that be arranged on the bottom margin of holding tank
There is flange, when the bottom of the switch cassette holder is installed on the flange of the holding tank, the card of the switch cassette holder
Hook the bottom for blocking the holding tank.
14. power-off protection apparatus according to claim 4, which is characterized in that be additionally provided with trigger assembly in the rear shell
Connection frame, has avoiding hollow groove on the trigger assembly connection frame, and the rear online switch triggering component may pass through the empty avoiding
For the button of slot contact squeeze derailing switch to connect the circuit of the derailing switch, the switch triggering component is switch triggering
Pressing plate.
15. a kind of electrical equipment, has shell, the shell includes at least first shell and second shell, which is characterized in that institute
It states and is provided with power-off protection apparatus described in any one of claim 1-14 in electrical equipment, the power-off protection apparatus includes
Derailing switch in electrical equipment is set, the derailing switch has button, is provided with switch triggering component in the second shell,
When removing the second shell from the first shell, the switch triggering component in second shell is detached from derailing switch
The button so that the derailing switch disconnecting circuit.
16. electrical equipment according to claim 15, which is characterized in that the electrical equipment is tower fan.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201811324870.9A CN109273301A (en) | 2018-11-08 | 2018-11-08 | power-off protection device and electrical equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201811324870.9A CN109273301A (en) | 2018-11-08 | 2018-11-08 | power-off protection device and electrical equipment |
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Publication Number | Publication Date |
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CN109273301A true CN109273301A (en) | 2019-01-25 |
Family
ID=65191716
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201811324870.9A Pending CN109273301A (en) | 2018-11-08 | 2018-11-08 | power-off protection device and electrical equipment |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2545739A1 (en) * | 1983-05-10 | 1984-11-16 | Cassan Michel | Safety device for fume extractor |
US6023887A (en) * | 1996-05-14 | 2000-02-15 | Oki Electric Industry Co., Ltd. | Door opening/closing detector and tool used for the same |
US6301126B1 (en) * | 1999-06-17 | 2001-10-09 | Honeywell International Inc. | Electrical equipment housing safety interlock system |
CN107816458A (en) * | 2017-11-23 | 2018-03-20 | 珠海格力电器股份有限公司 | Dismantle power-off protection structure and have its tower fan |
CN207250413U (en) * | 2017-06-30 | 2018-04-17 | 芜湖佳宏新材料股份有限公司 | A kind of temperature controller rear cover plastic part |
CN208938848U (en) * | 2018-11-08 | 2019-06-04 | 珠海格力电器股份有限公司 | power-off protection device and electrical equipment |
-
2018
- 2018-11-08 CN CN201811324870.9A patent/CN109273301A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2545739A1 (en) * | 1983-05-10 | 1984-11-16 | Cassan Michel | Safety device for fume extractor |
US6023887A (en) * | 1996-05-14 | 2000-02-15 | Oki Electric Industry Co., Ltd. | Door opening/closing detector and tool used for the same |
US6301126B1 (en) * | 1999-06-17 | 2001-10-09 | Honeywell International Inc. | Electrical equipment housing safety interlock system |
CN207250413U (en) * | 2017-06-30 | 2018-04-17 | 芜湖佳宏新材料股份有限公司 | A kind of temperature controller rear cover plastic part |
CN107816458A (en) * | 2017-11-23 | 2018-03-20 | 珠海格力电器股份有限公司 | Dismantle power-off protection structure and have its tower fan |
CN208938848U (en) * | 2018-11-08 | 2019-06-04 | 珠海格力电器股份有限公司 | power-off protection device and electrical equipment |
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