CN111479423A - Electric circuit controller with overheat protection function - Google Patents
Electric circuit controller with overheat protection function Download PDFInfo
- Publication number
- CN111479423A CN111479423A CN202010385038.0A CN202010385038A CN111479423A CN 111479423 A CN111479423 A CN 111479423A CN 202010385038 A CN202010385038 A CN 202010385038A CN 111479423 A CN111479423 A CN 111479423A
- Authority
- CN
- China
- Prior art keywords
- clamping groove
- circuit board
- controller
- shell
- heat transfer
- 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
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0204—Mounting supporting structures on the outside of casings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
- H05K5/0234—Feet; Stands; Pedestals, e.g. wheels for moving casing on floor
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/02—Arrangements of circuit components or wiring on supporting structure
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
Abstract
The invention provides an electric circuit controller with an overheat protection function, wherein a first clamping groove is formed in the middle position of the lower surface of a shell, a second clamping groove is formed in the left side of the inside of the first clamping groove, a rotating shaft is fixedly installed in the second clamping groove, a roller is rotatably connected to the outer surface of the rotating shaft, a fixing plate is fixedly connected to the outer surface of the roller, a circuit board is fixedly installed in the shell, heat transfer sheets are attached to the front surface and the rear surface of the circuit board, heat conduction sheets are uniformly and fixedly connected to the opposite surfaces of the two heat transfer sheets, and a control box is fixedly installed on the right side of the upper surface of the heat transfer sheet on the front surface of. The installation that the mounting means of multiple selection can make the controller is more convenient, makes the mounted position's of controller selectivity more, and the timely circuit that cuts off the controller can in time the loss stopping, avoids taking place bigger incident, reduces the loss of property, protection staff's personal safety.
Description
Technical Field
The invention belongs to the technical field of controllers, and particularly relates to an electric circuit controller with an overheat protection function.
Background
The controller is a master device for controlling the starting, speed regulation, braking and reversing of the motor by changing the wiring of the main circuit or the control circuit and changing the resistance value in the circuit according to a preset sequence.
However, in the use process of the existing electric line controller, when the controller is overloaded, the controller may be out of work due to heat generated inside the controller for a long time, and serious consequences may be brought, and in the installation of the existing controller, the installation positions are different, and sometimes a single installation mode may cause the controller to be particularly troublesome in the installation, so in view of this, research and improvement are made for the existing structure and the deficiency, and the electric line controller with the overheat protection function is provided, so as to achieve the purpose of having more practical value.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides an electrical line controller with overheat protection function, which is achieved by the following specific technical means:
an electric circuit controller with an overheat protection function comprises a shell, wherein an operation panel is embedded and installed at the middle position of the left side of the shell, heat dissipation grids are fixedly installed on the front surface and the rear surface of the shell, lug plates are fixedly installed at the front end and the rear end of the left side and the rear side of the shell, a first threaded hole is formed in the upper surface of each lug plate, a first clamping groove is formed in the middle position of the lower surface of the shell, a second clamping groove is formed in the left side of the inner portion of the first clamping groove, a rotating shaft is fixedly installed in the inner portion of the second clamping groove, a roller is rotatably connected to the outer surface of the rotating shaft, a fixing plate is fixedly connected to the outer surface of the roller, limiting convex blocks are uniformly arranged on the front surface and the rear surface of the roller, a second threaded hole is formed in the upper surface of, the circuit board is characterized in that heat transfer sheets are attached to the front surface and the rear surface of the circuit board, heat conduction sheets are fixedly connected to opposite surfaces of the two heat transfer sheets, and a control box is fixedly mounted on the right side of the upper surface of the heat transfer sheet on the front surface of the circuit board.
The control box includes point-control switch, touch multitouch, box body, inflation bag and ball end bottle, the upper surface right side fixed mounting of the heat transfer piece of circuit board front surface has the box body, the inside fixed mounting of box body has ball end bottle, the top fixedly connected with inflation bag of ball end bottle, the upper surface embedding sliding connection of box body has the touch multitouch, the fixed point-control switch that is provided with in top of touch multitouch, the upper surface at the inside of casing is adorned to the point-control switch upside down.
Furthermore, the second clamping groove is formed in the position of one third of the left side of the first clamping groove, the two opposite surfaces of the inner surface of the second clamping groove and the roller are respectively provided with a limiting lug matched with the limiting lug, and the fixing plate is limited in the first clamping groove through the mutual matching of the limiting lug on the second clamping groove and the limiting lug on the roller.
Furthermore, the lower surface of the heat conducting fin is attached to the upper surface of the circuit board, the heat conducting fin is made of copper, and the heat conducting fin is made of the same material as the heat transfer fin.
Furthermore, the point control switch is positioned right above the contact block, the width of the point control switch is the same as that of the contact block, the contact block is made of light PVC, and the PVC is a polymer formed by polymerizing vinyl chloride monomers under the action of light and heat according to a free radical polymerization reaction mechanism, wherein initiators such as peroxides and azo compounds are used as the initiators of the vinyl chloride monomers.
Furthermore, the lower surface of the spherical bottom bottle is attached to the upper surface of the heat transfer sheet on the front surface of the circuit board, the spherical bottom bottle is connected with the expansion bag in a sealing mode, and baffles are arranged on the left side and the right side of the expansion bag.
Compared with the prior art, the invention has the following beneficial effects:
1. at first when selecting to use fixed plate installation controller at first with the cylinder at the rotation of second draw-in groove, make the fixed plate rotate the left side of casing, spacing lug through on the second draw-in groove and spacing lug on the cylinder mutually support with the fixed plate spacing in first draw-in groove, the mounting means of multiple selection can make the installation of controller more convenient, makes the mounted position's of controller selectivity more.
2. At first when the inside circuit board of controller rises hotly, attached conducting strip on the circuit board transmits the heat on the circuit board to the below of bulb bottle through the heat transfer piece, bulb bottle heat absorption transmits the heat to the bottle in on the expanded medium that is heated, the medium is heated and expands the inflation bag, the inflation bag is with the contact block jack-up that makes progress, the certain height that the contact block rises, trigger point accuse switch, point accuse switch disconnection controller circuit, timely cut off the circuit of controller can in time the loss, avoid taking place bigger incident, reduce the loss of property, protect staff's personal safety.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic top perspective view of the present invention;
FIG. 3 is a schematic view of the mounting structure of the circuit board and its components of the present invention;
FIG. 4 is a front cross-sectional view of the control pod of the present invention;
fig. 5 is a schematic view of the installation structure of the rotating shaft and the components thereof.
In the figure: 1. a housing; 2. an operation panel; 3. a heat dissipation grid; 4. a first threaded hole; 5. an ear plate; 6. a wiring hole; 7. a first card slot; 8. a fixing plate; 9. a second card slot; 10. a heat transfer sheet; 11. a heat conductive sheet; 12. a circuit board; 13. a control box; 14. a point control switch; 15. a contact block; 16. a box body; 17. expanding the bag; 18. a ball-bottom bottle; 19. a limiting bump; 20. a rotating shaft; 21. a drum; 22. and a second threaded hole.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in figures 1 to 5:
the invention provides an electric circuit controller with an overheat protection function, which comprises a shell 1, wherein an operation panel 2 is embedded and installed at the middle position of the left side of the shell 1, heat dissipation grids 3 are fixedly installed on the front and back surfaces of the shell 1, ear plates 5 are fixedly installed at the front and back ends of the left and right sides of the shell 1, a first threaded hole 4 is formed in the upper surface of each ear plate 5, a first clamping groove 7 is formed in the middle position of the lower surface of the shell 1, a second clamping groove 9 is formed in the left side of the inner part of the first clamping groove 7, a rotating shaft 20 is fixedly installed in the inner part of the second clamping groove 9, a roller 21 is rotatably connected to the outer surface of each rotating shaft 20, a fixing plate 8 is fixedly connected to the outer surface of each roller 21, limit lugs 19 are uniformly arranged on the front and back surfaces of the roller 21, a second threaded hole 22 is formed in the upper surface, heat transfer sheets 10 are attached to the front surface and the rear surface of a circuit board 12, heat conducting sheets 11 are uniformly and fixedly connected to opposite surfaces of the two heat transfer sheets 10, a control box 13 is fixedly mounted on the right side of the upper surface of the heat conducting sheet 10 on the front surface of the circuit board 12, a second clamping groove 9 is formed in the position of one third of the left side of a first clamping groove 7, limiting convex blocks 19 matched with the limiting convex blocks 19 are arranged on the inner surface of the second clamping groove 9 and two opposite surfaces of a roller 21, the lower surface of the heat conducting sheet 11 is attached to the upper surface of the circuit board 12, the heat conducting sheet 11 is made of copper, a point control switch 14 is located right above a contact block 15, the width of the point control switch 14 is the same as that of the contact block 15, the contact block 15 is made of light PVC, when a controller is installed on a fixing plate 8, the roller 19 is firstly rotated in the second clamping groove 9 to, the fixing plate 8 is limited in the first clamping groove 7 through the mutual matching of the limiting lug 19 on the second clamping groove 9 and the limiting lug 19 on the roller 21, the controller can be more conveniently installed through multiple selected installation modes, and the selectivity of the installation position of the controller is more.
The control box 13 comprises a point control switch 14, a contact block 15, a box body 16, an expansion bag 17 and a spherical bottom bottle 18, the right side of the upper surface of the heat transfer sheet 10 on the front surface of the circuit board 12 is fixedly provided with the box body 16, the inside of the box body 16 is fixedly provided with the spherical bottom bottle 18, the top end of the spherical bottom bottle 18 is fixedly connected with the expansion bag 17, the upper surface of the box body 16 is embedded into the contact block 15 in a sliding connection manner, the point control switch 14 is fixedly arranged above the contact block 15, the point control switch 14 is inversely arranged on the upper surface inside the shell 1, the lower surface of the spherical bottom bottle 18 is attached to the upper surface of the heat transfer sheet 10 on the front surface of the circuit board 12, the spherical bottom bottle 18 is hermetically connected with the expansion bag 17, firstly, when the circuit board 12 inside the controller is heated, the heat transfer sheet 11 attached to the circuit board 12 transfers the heat on the circuit board 12 to the lower part of the spherical bottom bottle 18 through the heat transfer sheet, the medium is heated and expands the expansion bag 17, and the expansion bag 17 jacks up the contact block 15, and the contact block 15 rises by a certain height, triggers the point control switch 14, and the point control switch disconnects the controller circuit, so that the circuit for timely cutting off the controller can timely stop damage, thereby avoiding larger safety accidents, reducing property loss and protecting the personal safety of workers.
According to the invention, firstly, a proper installation method is selected according to the installation position of the controller, the controller can be fixedly installed through the first threaded hole 4 on the ear plate 5, or the controller can be fixedly installed through the second threaded hole 22 on the fixing plate 8, after the controller is installed and connected into an electric circuit through the wiring hole 6, each component in the electric circuit can be controlled and allocated through the operation panel 2 on the controller, when the load of the controller is overlarge, the circuit board 12 in the controller can be heated, the controller loses the effect of the controller due to long-time high-load heating, and serious safety accidents can be caused. When the fixing plate 8 is selected to be used for installing the controller, the roller 21 rotates in the second clamping groove 9 at first, the fixing plate 8 rotates to the left side of the shell 1, the limiting lug 19 on the second clamping groove 9 and the limiting lug 19 on the roller 21 are matched with each other to limit the fixing plate 8 in the first clamping groove 7, the roller 21 can rotate in the second clamping groove 9 by applying a little force to the fixing plate 8, and the roller 21 cannot rotate in the second clamping groove 9 under the condition that the fixing plate 8 is not touched. When a circuit board 12 in the controller is heated, heat on the circuit board 12 is transmitted to the lower portion of a spherical bottom bottle 18 through a heat transmission sheet 10 by a heat conduction sheet 11 attached to the circuit board 12, the spherical bottom bottle 18 absorbs heat to transmit the heat to a medium heated and expanded in the bottle, the medium is heated to expand an expansion bag 17, the expansion bag 17 jacks up a contact block 15, the contact block 15 rises to a certain height, a point control switch 14 is triggered, the point control switch disconnects a controller circuit, a worker can be prompted to have a fault after the circuit is disconnected, and more loss and harm caused by the fault are avoided.
The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention to achieve the above technical effects.
Claims (5)
1. An electric line controller with overheat protection, comprising a housing (1), characterized in that: an operation panel (2) is embedded in the middle position of the left side of the shell (1), a heat dissipation grating (3) is fixedly mounted on the front surface and the rear surface of the shell (1), lug plates (5) are fixedly mounted on the front end and the rear end of the left side and the rear side of the shell (1), a first threaded hole (4) is formed in the upper surface of each lug plate (5), a first clamping groove (7) is formed in the middle position of the lower surface of the shell (1), a second clamping groove (9) is formed in the left side of the inner portion of each first clamping groove (7), a rotating shaft (20) is fixedly mounted in the inner portion of each second clamping groove (9), a roller (21) is rotatably connected to the outer surface of each rotating shaft (20), a fixing plate (8) is fixedly connected to the outer surface of the roller (21), limiting convex blocks (19) are uniformly arranged on the front surface and the rear surface of the roller (21, the right side of the shell (1) is fixedly provided with a wiring hole (6), a circuit board (12) is fixedly installed inside the shell (1), the front surface and the rear surface of the circuit board (12) are respectively attached with a heat transfer sheet (10), the opposite surfaces of the two heat transfer sheets (10) are uniformly and fixedly connected with heat conduction sheets (11), and the right side of the upper surface of the heat transfer sheet (10) on the front surface of the circuit board (12) is fixedly provided with a control box (13);
control box (13) are including point-control switch (14), feeler block (15), box body (16), inflation bag (17) and ball end bottle (18), the upper surface right side fixed mounting of the heat transfer piece (10) of circuit board (12) front surface has box body (16), the inside fixed mounting of box body (16) has ball end bottle (18), the top fixedly connected with inflation bag (17) of ball end bottle (18), the upper surface embedding sliding connection of box body (16) has feeler block (15), the fixed point-control switch (14) that is provided with in top of feeler block (15), the upper surface of point-control switch (14) flip-chip in the inside of casing (1).
2. An electrical line controller having overheat protection according to claim 1, wherein: the second clamping groove (9) is formed in the position of one third of the left side of the first clamping groove (7), and two opposite surfaces of the inner surface of the second clamping groove (9) and the roller (21) are provided with limiting convex blocks (19) matched with the limiting convex blocks (19).
3. An electrical line controller having overheat protection according to claim 1, wherein: the lower surface of the heat conducting fin (11) is attached to the upper surface of the circuit board (12), and the heat conducting fin (11) is made of copper.
4. An electrical line controller having overheat protection according to claim 1, wherein: the point control switch (14) is located right above the contact block (15), the width of the point control switch (14) is the same as that of the contact block (15), and the contact block (15) is made of light PVC.
5. An electrical line controller having overheat protection according to claim 1, wherein: the lower surface of the spherical bottom bottle (18) is attached to the upper surface of the heat transfer sheet (10) on the front surface of the circuit board (12), and the spherical bottom bottle (18) is hermetically connected with the expansion bag (17).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010385038.0A CN111479423A (en) | 2020-05-09 | 2020-05-09 | Electric circuit controller with overheat protection function |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010385038.0A CN111479423A (en) | 2020-05-09 | 2020-05-09 | Electric circuit controller with overheat protection function |
Publications (1)
Publication Number | Publication Date |
---|---|
CN111479423A true CN111479423A (en) | 2020-07-31 |
Family
ID=71762204
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202010385038.0A Pending CN111479423A (en) | 2020-05-09 | 2020-05-09 | Electric circuit controller with overheat protection function |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN111479423A (en) |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100097793A1 (en) * | 2008-10-22 | 2010-04-22 | Chien-Chih Kuo | Power saving streetlamp device |
JP2012177501A (en) * | 2011-02-25 | 2012-09-13 | Nitto Electric Works Ltd | Ventilation device of box for storing electrical equipment |
US8905765B2 (en) * | 2012-11-14 | 2014-12-09 | Hon Hai Precision Industry Co., Ltd. | Self loading electrical connector and the assembing method thereof |
CN204559039U (en) * | 2015-05-12 | 2015-08-12 | 国家电网公司 | A kind of overtemperature protection terminal box |
CN207265680U (en) * | 2017-05-15 | 2018-04-20 | 张昊 | Full-automatic maintenance-free lead-acid battery charger |
CN208509497U (en) * | 2018-07-05 | 2019-02-15 | 石家庄陆杰电子科技有限公司 | A kind of robot controller of good heat dissipation effect |
CN208609320U (en) * | 2018-07-13 | 2019-03-15 | 辽宁工业大学 | A kind of intelligent electrical controller |
CN110329086A (en) * | 2019-08-06 | 2019-10-15 | 襄阳群龙汽车部件股份有限公司 | A kind of pure electric automobile All-in-One controller |
CN209787351U (en) * | 2019-07-23 | 2019-12-13 | 信安科技(天津)有限公司 | Local area network is mounting bracket for transmission facility |
CN209845524U (en) * | 2019-03-06 | 2019-12-24 | 徐州瑞控机电科技有限公司 | Intelligent home core controller based on CAN bus |
CN210274283U (en) * | 2019-08-07 | 2020-04-07 | 东莞市致尚塑化科技有限公司 | Television rear shell easy to dissipate heat based on PC/ABS material |
CN111010502A (en) * | 2019-12-24 | 2020-04-14 | 吴文娟 | Automatic radiating shock-proof type image processor |
-
2020
- 2020-05-09 CN CN202010385038.0A patent/CN111479423A/en active Pending
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100097793A1 (en) * | 2008-10-22 | 2010-04-22 | Chien-Chih Kuo | Power saving streetlamp device |
JP2012177501A (en) * | 2011-02-25 | 2012-09-13 | Nitto Electric Works Ltd | Ventilation device of box for storing electrical equipment |
US8905765B2 (en) * | 2012-11-14 | 2014-12-09 | Hon Hai Precision Industry Co., Ltd. | Self loading electrical connector and the assembing method thereof |
CN204559039U (en) * | 2015-05-12 | 2015-08-12 | 国家电网公司 | A kind of overtemperature protection terminal box |
CN207265680U (en) * | 2017-05-15 | 2018-04-20 | 张昊 | Full-automatic maintenance-free lead-acid battery charger |
CN208509497U (en) * | 2018-07-05 | 2019-02-15 | 石家庄陆杰电子科技有限公司 | A kind of robot controller of good heat dissipation effect |
CN208609320U (en) * | 2018-07-13 | 2019-03-15 | 辽宁工业大学 | A kind of intelligent electrical controller |
CN209845524U (en) * | 2019-03-06 | 2019-12-24 | 徐州瑞控机电科技有限公司 | Intelligent home core controller based on CAN bus |
CN209787351U (en) * | 2019-07-23 | 2019-12-13 | 信安科技(天津)有限公司 | Local area network is mounting bracket for transmission facility |
CN110329086A (en) * | 2019-08-06 | 2019-10-15 | 襄阳群龙汽车部件股份有限公司 | A kind of pure electric automobile All-in-One controller |
CN210274283U (en) * | 2019-08-07 | 2020-04-07 | 东莞市致尚塑化科技有限公司 | Television rear shell easy to dissipate heat based on PC/ABS material |
CN111010502A (en) * | 2019-12-24 | 2020-04-14 | 吴文娟 | Automatic radiating shock-proof type image processor |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN111479423A (en) | Electric circuit controller with overheat protection function | |
CN110718358B (en) | Anti-creeping safe heat dissipation and insulation device for transformer box | |
CN111070411A (en) | Cement mixer with motor protection function | |
CN110567029B (en) | Anti-covering household warmer capable of automatically bouncing off | |
CN213119533U (en) | Anti-toppling host machine for hydrothermal blanket | |
CN112701540B (en) | High-temperature protection automatic power-off socket | |
CN207504415U (en) | A kind of wireless temperature measurement temperature detect switch (TDS) cabinet | |
CN208045373U (en) | A kind of power-off force switch of mechanical temperature controller | |
CN212625993U (en) | Coaxial attenuator | |
CN215896196U (en) | Slope vault-shaped riveting line fillet switch | |
CN218918711U (en) | Earthing switch operating shaft limiting device | |
CN117347681B (en) | DC resistance tester | |
CN218160965U (en) | Intelligent socket convenient to adjust | |
CN220235115U (en) | Strong electric controller of high security | |
CN213184139U (en) | Frame type circuit breaker capable of automatically adjusting temperature | |
CN212230341U (en) | Novel anti-toppling switch | |
CN213583616U (en) | Novel main knife switch device of isolating switch | |
CN213151167U (en) | Smart jack sensing device | |
CN218154947U (en) | Automatic start-stop device for radiator | |
CN214481966U (en) | TF card connecting device | |
CN214012832U (en) | Temperature controller capable of being reset manually | |
CN215731450U (en) | Dual-power switch switching mechanism | |
CN218195526U (en) | Environment-friendly waterproofing membrane cutting equipment | |
CN216412338U (en) | Power equipment high temperature early warning device convenient to dismouting | |
CN219692077U (en) | Torsion overload protection device |
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 | ||
RJ01 | Rejection of invention patent application after publication | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200731 |