CN106735743A - Waterproof stick arc welder - Google Patents
Waterproof stick arc welder Download PDFInfo
- Publication number
- CN106735743A CN106735743A CN201611214118.XA CN201611214118A CN106735743A CN 106735743 A CN106735743 A CN 106735743A CN 201611214118 A CN201611214118 A CN 201611214118A CN 106735743 A CN106735743 A CN 106735743A
- Authority
- CN
- China
- Prior art keywords
- plate
- plastic packaging
- arc welder
- housing
- control device
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
- B23K9/1006—Power supply
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Generation Of Surge Voltage And Current (AREA)
- Arc Welding Control (AREA)
Abstract
The invention discloses a kind of waterproof stick arc welder, wherein, including:One housing, the housing includes:Front panel, rear board, base plate and cover plate, are also equipped with a middle plate in the housing;Control device is installed, the control device includes in the housing:One industrial frequency rectifying filtering mechanism, an inverter, an intermediate-frequency transformer, one or two rectification mechanisms are sequentially connected in series, and a control panel connects the input and secondary rectification mechanism output end of the inverter;Plastic packaging shell before being provided with one in the front panel, the current-carrying part embedding of the control panel is in the preceding plastic packaging shell.Be potted in device easily affected by environment in control device in the corresponding plastic packaging shell in housing by using embedding structure by the present invention, it is achieved thereby that good water proof and dust proof, can be in steady operation under rugged environment.
Description
Technical field
The present invention relates to a kind of welding machine, more particularly to a kind of waterproof stick arc welder.
Background technology
In the modern times, as making rapid progress for science and technology is operated with constantly progress, inversion type welding rod arc welding apparatus due to it
Flexibly, it is widely used, strong adaptability.It is more to enter in common people family, so being carried to inversion type welding rod arc welding apparatus
Go out requirement higher, such as security performance, water resistance, whether saving energy consumption and being easy to carry property etc..
Traditional inversion type welding rod arc welding apparatus, an including industrial frequency rectifying filtering mechanism is connected with an inverter, inverter with
One intermediate-frequency transformer is connected, and inverter is connected with control panel, and intermediate-frequency transformer output end is connected with secondary rectification mechanism, secondary
Rectification mechanism negative terminal is connected with output reactance one end, and the output reactance other end is connected with stick arc welder output end negative terminal, and two
Secondary rectification mechanism anode is connected with current divider, and the current divider other end is connected with stick arc welder output plus terminal.Current divider is anti-
Feedback end is connected with master control borad.
Because conventional coupling arrangement is to be directly connected to, without any PROCESS FOR TREATMENT.Conducting element and conducting metal are naked
Expose outside, so being unable to waterproof, if being powered after the dipped water of imprudence, machine inner member short circuit can be caused to cause mechanical disorder,
The generation of personal injury part event can be caused if serious.
The content of the invention
The invention discloses a kind of waterproof stick arc welder, it is used to solve in the prior art in adverse circumstances, meet with
The problem of arc welder normal work can be influenceed after situations such as whole body is soaked.
Above-mentioned purpose of the invention is achieved through the following technical solutions:
A kind of waterproof stick arc welder, wherein, including:One housing, the housing includes:Front panel, rear board, base plate and lid
Plate, is also equipped with a middle plate in the housing;Control device is installed, the control device includes in the housing:One work
Frequency rectifying and wave-filtering mechanism, an inverter, an intermediate-frequency transformer, one or two rectification mechanisms are sequentially connected in series, and control panel connection is described
The input of inverter and secondary rectification mechanism output end;Plastic packaging shell before being provided with one in the front panel, the control panel
Current-carrying part embedding is in the preceding plastic packaging shell.
Waterproof stick arc welder as described above, wherein, the inverter includes:Inversion plate, single tube IGBT, IGBT dissipate
Hot device, the middle plate has middle plastic packaging shell, and the inversion plate is arranged on the middle plate by the middle plastic packaging shell;It is described
The metal pins of single tube IGBT are welded on the inversion plate top simultaneously by the reserved hole position of the inversion plate and the middle plastic packaging shell
Plastic packaging is carried out using gluing process, the master chip of the single tube IGBT is installed on the IGBT radiators upper surface.
Waterproof stick arc welder as described above, wherein, the industrial frequency rectifying filtering mechanism includes:Rectifier bridge, filtering
Electric capacity, the filter capacitor is arranged on the middle plate lower surface, and the rectifier bridge is arranged on the plate upper surface, and described
Rectifier bridge is arranged on the filter capacitor lower section.
Waterproof stick arc welder as described above, wherein, the PWM adjustment structures include:PWM chip and driving electricity
Road, external characteristic control circuit and pi regulator, voltage sampling circuit, current sampling circuit
Waterproof stick arc welder as described above, wherein, the front panel uses cambered plate, and the front panel outer surface is installed
Have what is be connected with control device:Electric current display window, welding indicator lamp, protection indicator lamp, push current adjusting knob, welding electricity
Stream adjusting knob, air outlet is further opened with the front panel.
Waterproof stick arc welder as described above, wherein, the front panel includes:Centre in the middle part of plate forward-mounted
Component, the intermediate module is provided with negative pole output snap joint seat, the positive pole output snap joint seat being connected with control device.
Waterproof stick arc welder as described above, wherein, the rear board includes:Install at back plate, the back plate middle part
There is a plastic housing, the back plate is provided with power switch, ground wire screw installation portion, the water joint installation being connected with control device
Portion;Air inlet is offered in the plastic housing, the air inlet inner side is equipped with radiator fan.
Waterproof stick arc welder as described above, wherein, the inverter also includes:IGBT radiators.
Waterproof stick arc welder as described above, wherein, the control device also includes that a Width funtion detects tablet,
The Width funtion detection tablet detects that the embedding of plastic packaging shell is arranged on the middle plate by a Width funtion.
Waterproof stick arc welder as described above, wherein, the intermediate-frequency transformer is pacified by an intermediate-frequency transformer support
On the base plate.
In sum, by adopting the above-described technical solution, the present invention is solved in the prior art in adverse circumstances, meet with
The problem of arc welder normal work can be influenceed after situations such as chance whole body is soaked, by using embedding structure easy in control device
Device affected by environment is potted in the corresponding plastic packaging shell in housing, it is achieved thereby that good water proof and dust proof, can dislike
Steady operation under bad environment;Even and if after realizing that inversion type welding rod arc welding apparatus are soaked, pulled out from water and also can after draining the water
Normally use.
Brief description of the drawings
Fig. 1 is the front view of waterproof stick arc welder of the present invention;
Fig. 2 is the left view of waterproof stick arc welder of the present invention;
Fig. 3 is the right view of waterproof stick arc welder of the present invention;
Fig. 4 is the rearview of waterproof stick arc welder of the present invention.
Specific embodiment
The present invention is described further with reference to the accompanying drawings and examples:
Fig. 1 is the front view of waterproof stick arc welder of the present invention, and Fig. 2 is the left view of waterproof stick arc welder of the present invention,
Fig. 3 is the right view of waterproof stick arc welder of the present invention, and Fig. 4 is the rearview of waterproof stick arc welder of the present invention, please be joined
See Fig. 1 ~ 4, a kind of waterproof stick arc welder, wherein, including:One housing, housing includes:Front panel, rear board, base plate and lid
Plate, is also equipped with a middle plate 56 in housing;Control device is installed, control device includes in housing:One industrial frequency rectifying is filtered
Mechanism, an inverter, 36,1 rectification mechanisms 35 of an intermediate-frequency transformer are sequentially connected in series, and control panel connects the input of inverter
End and secondary rectification mechanism output end;Plastic packaging shell 39 before being provided with one in front panel, the current-carrying part of control panel 38 passes through dispensing
Technique embedding in 39 in preceding plastic packaging shell, realize band electrical component and may conducting metal fully and water segregation.
The present invention significantly reduces the volume and weight of intermediate-frequency transformer by using inversion transformation technique while improving working frequency
Amount, and remove reactance and current divider.Due to using switch power supply road technique, it is compared to conventional power source transformer, switch
Frequency is high, small volume, lightweight, high conversion efficiency, because Switching Power Supply reaches voltage stabilizing purpose by adjusting dutycycle PWM,
Duty cycle range is relatively wide, it is possible to accomplish that input voltage range is broader, and suitable generator powered is used.Control panel
38 using SMT surface mounting technologies and with perfect over-voltage protection function(More than setting reference voltage machine automatically into
Guard mode, machine automatically cuts off output, resumes work after voltage is reduced to normal condition), under-voltage protection function(Less than setting
Reference voltage machine is determined automatically into guard mode, machine automatically cuts off output, when voltage recovers to normal, into work shape
State), overcurrent protection function(After sample rate current exceedes single pipe current, machine enters protection working condition, and cut-out output is extensive
Normal work after multiple)These three protections, effectively improve the reliability of machine.
Further, inverter includes:Inversion plate 42, single tube IGBT, IGBT radiator middle plate 56 has middle plastic packaging shell,
Inversion plate 42 is arranged on middle plate 56 by middle plastic packaging shell;The metal pins of single tube IGBT pass through inversion plate 42 and middle plastic packaging shell
Reserved hole position is welded on the top of inversion plate 42 and carries out plastic packaging using gluing process, and the master chip of single tube IGBT is installed on IGBT and dissipates
The upper surface of hot device 55.
Further, industrial frequency rectifying filtering mechanism includes:Rectifier bridge 71, filter capacitor 37, filter capacitor are arranged on middle level
The lower surface of plate 56, rectifier bridge is arranged on plate upper surface, and rectifier bridge is arranged on filter capacitor lower section.
Further, PWM adjustment structures include:PWM chip and drive circuit, external characteristic control circuit and pi regulator electricity
Road, voltage sampling circuit, current sampling circuit.
Further, front panel uses cambered plate, and front panel outer surface is provided with what is be connected with control device:Electric current shows
Window 2, welding indicator lamp 3, protection indicator lamp 4, push current adjusting knob 5, welding current adjusting knob 16, on front panel also
Offer air outlet 11.
There can be a master control borad in front panel of the invention, master control borad is connected to display control unit on plate forward-mounted
Point(Electric current display window 2, welding indicator lamp 3, protection indicator lamp 4, push current adjusting knob 5, welding current adjusting knob
16)Between control device.
Further, front panel includes:Intermediate module 58 in the middle part of plate forward-mounted, intermediate module is provided with and control
Negative pole output snap joint seat 7, the positive pole output snap joint seat 13 of device connection.
Further, rear board includes:Back plate 57, back plate middle part is provided with a plastic housing 20, and back plate is provided with and is filled with control
Put power switch 22, the ground wire screw installation portion 30, water joint installation portion 28 of connection;Air inlet 26 is offered in plastic housing 20,
The inner side of air inlet 26 is equipped with radiator fan 32.
Further, inverter also includes:IGBT radiators 55, the top of IGBT radiators 55 has for fixing thermoswitch
Mounting hole 33.
Further, control device also includes that a Width funtion detects tablet 41, and Width funtion detection tablet is wide by one
The embedding of voltage detecting plastic packaging shell 40 is arranged on middle plate 56.Copper stud is arranged at the upside of inverter 42, and copper stud top passes through
The screw hole of Width funtion detection plastic packaging shell 40 is connected with Width funtion detection tablet 41.
Further, intermediate-frequency transformer 36 is arranged on base plate by an intermediate-frequency transformer support 50.Intermediate-frequency transformer 36
Secondary coil is connected with secondary rectification mechanism 35.
Further, secondary rectification radiator 52 is fixed on IGBT radiators 55 by using insulation board 54 and insulation board 34
Lower section, positive pole output aluminium strip 53 is used for connecting secondary rectification radiator 52 and exports seat 13 with snap joint positive pole.
Cover plate top of the invention is provided with handle 31.
Further, in one embodiment of the invention, control panel of the invention 38 uses SMT surface mounting technologies simultaneously
With perfect over-voltage protection function(More than setting reference voltage machine automatically into guard mode, machine automatically cuts off defeated
Go out, resume work after voltage is reduced to normally), under-voltage protection function(Less than setting reference voltage machine automatically into protection
State, machine automatically cuts off output, when voltage recovers to normal, into working condition), overcurrent protection function(Sample rate current surpasses
After crossing single pipe current, machine enters protection working condition, cut-out output, normal work after recovery)These three protections, effectively
Improve the reliability of machine.VRD no-load protection functions, make machine floating voltage be down to 15V, less than national standard safe voltage
36V, so as to protect user's Electrical Safety, recovers normal during welding.In addition, the overall wiring board current-carrying part of control panel 38 makes
With electron pouring sealant embedding in plastic packaging shell 39, because it is plastic housing insulation, using either iron filings, dust be also after electron pouring sealant
Or water can not all have influence on its performance.
Further, Width funtion detection tablet 41 of the invention, due to using switch power supply road technique, it compares
In conventional power source transformer, switching frequency is high, small volume, lightweight, high conversion efficiency, because Switching Power Supply is by adjusting duty
Voltage stabilizing purpose is reached than PWM, duty cycle range is relatively wide, it is possible to accomplish that input voltage range is broader.The machine volume
Fixed working voltage is single-phase 220V, all can normal work in AC110-280V conditions(Generally conventional type input voltage range
Between 200-240V), it is equally applicable to generator powered mode in field construction operation.Further, since welding machine working environment is logical
Often more severe, the machine Width funtion detection tablet 41 is using electron pouring sealant embedding in plastic packaging shell 40.Can accomplish dust-proof, anti-
Water.It is effectively increased reliability and service life.
Further, inversion plate 42 of the invention, using full-bridge inverting technology, power output is powerful.The lower phase of equal output
Compared with semi-bridge inversion technology, single pipe current is half as large, is favorably improved whole aircraft reliability.In addition, inversion plate 42 uses electricity
Sub- casting glue embedding in plastic packaging shell 43, so it can accomplish dust-proof, waterproof.
Due to all wiring board current-carrying parts of the invention by treatment, tests prove that, the machine after bubbly water,
Normal weld after draining the water.
Claims (9)
1. a kind of waterproof stick arc welder, it is characterised in that including:One housing, the housing includes:Front panel, rear board,
Base plate and cover plate, are also equipped with a middle plate in the housing;Control device, the control device bag are installed in the housing
Include:One industrial frequency rectifying filtering mechanism, an inverter, an intermediate-frequency transformer, one or two rectification mechanisms are sequentially connected in series, the control panel
Connect the input and secondary rectification mechanism output end of the inverter;Plastic packaging shell, described before being provided with one in the front panel
The current-carrying part of control panel is by gluing process plastic packaging in the preceding plastic packaging shell.
2. waterproof stick arc welder according to claim 1, it is characterised in that the inverter includes:Inversion plate, list
Pipe IGBT, IGBT radiator, the middle plate has middle plastic packaging shell, and the inversion plate is arranged on described by the middle plastic packaging shell
On middle plate;The metal pins of the single tube IGBT are welded on described by the reserved hole position of the inversion plate and the middle plastic packaging shell
Inversion plate top simultaneously carries out plastic packaging using gluing process, and the master chip of the single tube IGBT is installed on the IGBT radiators upper table
Face.
3. waterproof stick arc welder according to claim 1, it is characterised in that the industrial frequency rectifying filtering mechanism bag
Include:Rectifier bridge, filter capacitor, the filter capacitor are arranged on the middle plate lower surface, and the rectifier bridge is arranged on the bottom
Plate upper surface, and the rectifier bridge is arranged on the filter capacitor lower section.
4. waterproof stick arc welder according to claim 1, it is characterised in that the PWM adjustment structures include:PWM
Chip and drive circuit, external characteristic control circuit and pi regulator circuit, current sampling circuit, voltage sampling circuit.
5. waterproof stick arc welder according to claim 1, it is characterised in that the front panel uses cambered plate, institute
State front panel outer surface and be provided with what is be connected with control device:Electric current display window, welding indicator lamp, protection indicator lamp, thrust
Current adjusting knob, welding current adjusting knob, air outlet is further opened with the front panel.
6. waterproof stick arc welder according to claim 1, it is characterised in that the front panel includes:Installed in preceding
The intermediate module of middle panel, the intermediate module is provided with negative pole output snap joint seat, the positive pole being connected with control device
Output snap joint seat.
7. waterproof stick arc welder according to claim 1, it is characterised in that the rear board includes:Back plate, it is described
Back plate middle part is provided with a plastic housing, the back plate be provided be connected with control device power switch, ground wire screw installation portion, prevent
Water swivel installation portion;Air inlet is offered in the plastic housing, the air inlet inner side is equipped with radiator fan.
8. waterproof stick arc welder according to claim 1, it is characterised in that the control device also includes an electricity wide
Pressure detection tablet, the Width funtion detection tablet detects plastic packaging shell by gluing process plastic packaging and installs by a Width funtion
On the middle plate.
9. waterproof stick arc welder according to claim 1, it is characterised in that the intermediate-frequency transformer passes through an intermediate frequency
Transformer bracket is arranged on the base plate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201611214118.XA CN106735743A (en) | 2016-12-26 | 2016-12-26 | Waterproof stick arc welder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201611214118.XA CN106735743A (en) | 2016-12-26 | 2016-12-26 | Waterproof stick arc welder |
Publications (1)
Publication Number | Publication Date |
---|---|
CN106735743A true CN106735743A (en) | 2017-05-31 |
Family
ID=58920778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201611214118.XA Pending CN106735743A (en) | 2016-12-26 | 2016-12-26 | Waterproof stick arc welder |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106735743A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107442909A (en) * | 2017-08-21 | 2017-12-08 | 上海沪通企业集团有限公司 | Waterproof lightweight electric arc welder |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2051143U (en) * | 1989-05-30 | 1990-01-17 | 赵阳 | Dc. power hand-held electric arc welder with sealed distribution box |
JPH0890252A (en) * | 1994-09-27 | 1996-04-09 | Miyachi Technos Corp | Inverter type welding power source unit |
JPH1098272A (en) * | 1996-09-24 | 1998-04-14 | Sansha Electric Mfg Co Ltd | Power unit |
CN202070870U (en) * | 2011-05-18 | 2011-12-14 | 雷平 | Heat insulation drying closed semiconductor heat dissipation electric welding machine |
CN103042290A (en) * | 2013-01-05 | 2013-04-17 | 新疆门户投资管理有限公司 | Miniature heatproof moisture-proof welder |
CN104293267A (en) * | 2014-10-23 | 2015-01-21 | 卢儒 | Pouring sealant of organosilicon modified epoxy resin for class-C electric welding machine and preparation method of pouring sealant |
CN204122895U (en) * | 2014-07-23 | 2015-01-28 | 中工工具有限公司 | A kind of Width funtion inverter type welder |
CN204295099U (en) * | 2014-11-06 | 2015-04-29 | 上海沪通企业集团有限公司 | Manual welding machine |
CN204321373U (en) * | 2014-11-06 | 2015-05-13 | 上海沪通企业集团有限公司 | Reinforcing bar pressure welding machine |
CN205237286U (en) * | 2015-12-28 | 2016-05-18 | 浙江肯得机电股份有限公司 | Structure of contravariant manual electric arc welding machine is just being swashed to IGBT single tube single -end |
CN205437431U (en) * | 2015-12-28 | 2016-08-10 | 浙江肯得机电股份有限公司 | Structure of IGBT single tube full -bridge contravariant manual electric arc welding machine |
CN205702800U (en) * | 2016-03-21 | 2016-11-23 | 上海沪通企业集团有限公司 | Gas-shielded welder |
CN206425667U (en) * | 2016-12-26 | 2017-08-22 | 上海沪通企业集团有限公司 | Waterproof stick arc welder |
-
2016
- 2016-12-26 CN CN201611214118.XA patent/CN106735743A/en active Pending
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2051143U (en) * | 1989-05-30 | 1990-01-17 | 赵阳 | Dc. power hand-held electric arc welder with sealed distribution box |
JPH0890252A (en) * | 1994-09-27 | 1996-04-09 | Miyachi Technos Corp | Inverter type welding power source unit |
JPH1098272A (en) * | 1996-09-24 | 1998-04-14 | Sansha Electric Mfg Co Ltd | Power unit |
CN202070870U (en) * | 2011-05-18 | 2011-12-14 | 雷平 | Heat insulation drying closed semiconductor heat dissipation electric welding machine |
CN103042290A (en) * | 2013-01-05 | 2013-04-17 | 新疆门户投资管理有限公司 | Miniature heatproof moisture-proof welder |
CN204122895U (en) * | 2014-07-23 | 2015-01-28 | 中工工具有限公司 | A kind of Width funtion inverter type welder |
CN104293267A (en) * | 2014-10-23 | 2015-01-21 | 卢儒 | Pouring sealant of organosilicon modified epoxy resin for class-C electric welding machine and preparation method of pouring sealant |
CN204295099U (en) * | 2014-11-06 | 2015-04-29 | 上海沪通企业集团有限公司 | Manual welding machine |
CN204321373U (en) * | 2014-11-06 | 2015-05-13 | 上海沪通企业集团有限公司 | Reinforcing bar pressure welding machine |
CN205237286U (en) * | 2015-12-28 | 2016-05-18 | 浙江肯得机电股份有限公司 | Structure of contravariant manual electric arc welding machine is just being swashed to IGBT single tube single -end |
CN205437431U (en) * | 2015-12-28 | 2016-08-10 | 浙江肯得机电股份有限公司 | Structure of IGBT single tube full -bridge contravariant manual electric arc welding machine |
CN205702800U (en) * | 2016-03-21 | 2016-11-23 | 上海沪通企业集团有限公司 | Gas-shielded welder |
CN206425667U (en) * | 2016-12-26 | 2017-08-22 | 上海沪通企业集团有限公司 | Waterproof stick arc welder |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107442909A (en) * | 2017-08-21 | 2017-12-08 | 上海沪通企业集团有限公司 | Waterproof lightweight electric arc welder |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9642242B2 (en) | Power conversion apparatus | |
KR20020004817A (en) | Power source device | |
CN206425667U (en) | Waterproof stick arc welder | |
CN106735743A (en) | Waterproof stick arc welder | |
US20210362289A1 (en) | Electric work machine | |
CN206425675U (en) | Twin voltage waterproof arc welder | |
CN106624301A (en) | Double-voltage waterproof electric arc welder | |
CN206764115U (en) | A kind of internal pump one inverter type plasma cutting machine | |
CN205702800U (en) | Gas-shielded welder | |
CN205789780U (en) | Intelligent residual current protective breaker | |
JPH0890252A (en) | Inverter type welding power source unit | |
CN206425666U (en) | Width funtion hand arc welding machine | |
CN206060552U (en) | Vacuum coating power supply | |
CN219509849U (en) | Electric air pump | |
CN219892962U (en) | Intelligent distribution box of motor-driven calibration vehicle | |
CN219124092U (en) | Current transformer | |
CN214429264U (en) | Intelligent low-voltage power capacitor | |
CN221783458U (en) | Safety protection device of electricity-saving device | |
CN211720477U (en) | Rotary excitation rectifier | |
CN218161848U (en) | Charger with air-cooled heat radiation structure | |
CN204321372U (en) | The special gas-shielded welder of welding wire | |
CN108237311A (en) | Electric welding machine under a kind of multifunctional water | |
CN213072097U (en) | Bus electrolytic capacitor protection circuit | |
CN209676525U (en) | A kind of induction heating power device | |
CN219067924U (en) | Dual-circuit power supply redundancy power supply 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 | ||
CB03 | Change of inventor or designer information |
Inventor after: Pan Jianzhong Inventor before: Guo Shaopeng Inventor before: Yang Shuzi |
|
CB03 | Change of inventor or designer information | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |
|
RJ01 | Rejection of invention patent application after publication |