CN113064039A - Assembled intelligent tool for high-voltage test of frequency converter - Google Patents
Assembled intelligent tool for high-voltage test of frequency converter Download PDFInfo
- Publication number
- CN113064039A CN113064039A CN202110497280.1A CN202110497280A CN113064039A CN 113064039 A CN113064039 A CN 113064039A CN 202110497280 A CN202110497280 A CN 202110497280A CN 113064039 A CN113064039 A CN 113064039A
- Authority
- CN
- China
- Prior art keywords
- frequency converter
- frame
- lead screw
- voltage test
- sliding
- 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
- 238000012360 testing method Methods 0.000 title claims abstract description 29
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 238000009434 installation Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
本发明公开了一种组装式智能变频器高压测试用工装治具，包括支撑工装架和固定在支撑工装架上方的固定架，所述支撑工装架的顶端面一侧开有侧边凹槽，并在侧边凹槽的底壁对称开有两个平行设置的侧边底槽，所述固定架安装在支撑工装架的顶端面另一侧并靠近侧边处，固定架一侧的支撑工装架顶端面开有底部滑槽，并在底部滑槽内通过第一丝杠安装有两个相向或相背移动的第一夹紧座，所述底部滑槽与侧边凹槽之间安装有支撑台板，所述固定架的侧面上端开有内框，并在内框中安装有固定导线的通电连接机构。该组装式智能变频器高压测试用工装治具，方便了连续测试时导线与变频器的频繁拆卸安装，且适应变频器的定位夹紧。
The invention discloses an assembled intelligent frequency converter high-voltage test tooling fixture, which comprises a support tooling frame and a fixing frame fixed above the supporting tooling frame. A side groove is opened on one side of the top surface of the supporting tooling frame. The bottom wall of the side groove is symmetrically opened with two parallel side bottom grooves. The top surface of the frame is provided with a bottom chute, and in the bottom chute, two first clamping seats that move toward each other or opposite to each other are installed through a first lead screw, and a bottom chute and a side groove are installed between the bottom chute and the side groove. The support platen is provided with an inner frame on the upper end of the side surface of the fixing frame, and a power connection mechanism for fixing the wire is installed in the inner frame. The assembled intelligent frequency converter high-voltage test tooling fixture facilitates the frequent disassembly and installation of the wire and the frequency converter during continuous testing, and is suitable for the positioning and clamping of the frequency converter.
Description
Technical Field
The invention belongs to the technical field of high-voltage testing of frequency converters, and particularly relates to a tool jig for high-voltage testing of an assembled intelligent frequency converter.
Background
The frequency converter is an electric control device which applies a frequency conversion technology and a microelectronic technology and controls an alternating current motor by changing the frequency mode of a working power supply of the motor. The frequency converter mainly comprises a rectifying unit (alternating current to direct current), a filtering unit, an inverting unit (direct current to alternating current), a braking unit, a driving unit, a detection unit micro-processing unit and the like.
When the production of converter is prepared, need carry out high-pressure performance test, but at present when carrying out high-pressure test to the converter, because the converter needs carry out frequent dismouting, and when directly being connected test wire and converter, inconvenient to being connected and arranging of wire, influence the test easily and use, the positioning accuracy of converter when the test is low simultaneously, poor stability.
Disclosure of Invention
The invention aims to provide a tooling jig for high-voltage testing of an assembled intelligent frequency converter, which is used for solving the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a tool jig for high-voltage testing of an assembled intelligent frequency converter comprises a supporting tool frame and a fixing frame fixed above the supporting tool frame, wherein one side of the top end surface of the supporting tool frame is provided with a side groove, two side bottom grooves which are arranged in parallel are symmetrically arranged on the bottom wall of the side groove, the fixed frame is arranged on the other side of the top end surface of the supporting tool frame and is close to the side edge, a bottom sliding groove is arranged on the top end surface of the supporting tool frame on one side of the fixed frame, two first clamping seats moving in opposite directions or back to back are arranged in the bottom sliding groove through a first lead screw, a supporting bedplate is arranged between the bottom sliding chute and the side groove, an inner frame is arranged at the upper end of the side surface of the fixing frame, and an electrified connecting mechanism for fixing the lead is arranged in the inner frame, third lead screws are arranged in the two side bottom grooves, and a sliding adjusting mechanism which slides in the side groove is connected through the two third lead screws.
Preferably, an inner cavity is formed in the supporting tool table right below the supporting template, and one end of each third screw rod extends into the inner cavity and is in transmission connection with a motor arranged on the side face of the supporting tool frame through a worm transmission piece.
Preferably, the worm transmission part comprises a worm wheel fixedly sleeved on the end parts of the two third lead screws in the inner cavity and a worm meshed with the worm wheel, the two ends of the worm are inserted into the side wall of the inner cavity, and one end of the worm is coaxially and fixedly connected with the output shaft of the motor.
Preferably, circular telegram coupling mechanism is including setting up the lift current conducting plate in the inside casing and the locating part of spacing lift current conducting plate, the both sides face of lift current conducting plate all installs the corresponding and electricity connection port that even interval set up, the both sides face of inside casing is all opened between two parties has the guide way, the both sides face of lift current conducting plate all protrudes and has the guide block of coincideing in the guide way.
Preferably, the locating part includes tapping at the mount lateral surface and penetrating the positioning screw in the guide way and inserting the positioning bolt in the positioning screw, the jack with positioning bolt sliding fit is all tapped to the guide block side of lift current-conducting plate.
Preferably, the sliding adjusting mechanism comprises sliding adjusting seats arranged on the two side bottom grooves and two second clamping seats arranged on the upper end face of the sliding adjusting seat, sliding blocks matched in the side bottom grooves are arranged on the bottom end face of the sliding adjusting seat in a protruding mode, and the sliding blocks are sleeved on the outer side of the third screw rod in a threaded mode.
Preferably, a top sliding groove is formed in the middle of the top end face of the sliding adjusting seat, a second lead screw is installed in the top sliding groove, the bottom end of the second clamping seat slides in the top sliding groove and is sleeved on the outer side of the second lead screw in a threaded manner, and the two second clamping seats slide on the sliding adjusting seat in the opposite direction or in the opposite direction through the second lead screw.
Preferably, the threads at the two ends of the second screw rod are opposite to the threads at the two ends of the first screw rod, the bottom sliding groove is extended out of one end of the first screw rod, the knob is connected to the bottom sliding groove, and the top sliding groove is extended out of one end of the second screw rod, and the knob is also connected to the top sliding groove.
Preferably, the first clamping seat and the second clamping seat are provided with bearing grooves at ends of one side surface facing the support bedplate, the bearing grooves form an L-shaped clamping cavity at the top, and rubber pads are adhered to side walls of the bearing grooves.
The invention has the technical effects and advantages that:
according to the tool jig for the high-voltage test of the assembled intelligent frequency converter, the top end face of the support tool frame is provided with the fixing frame, the inner frame of the fixing frame is provided with the through electric connecting mechanism, one end of the through electric connecting mechanism is connected with the external electric wire, and the other end of the through electric connecting mechanism is connected with the frequency converter through the wire, so that the direct connection between the external electric wire and the frequency converter is avoided when the frequency converter is subjected to high-voltage test, the disordered arrangement of the wires on the surface of the support tool frame is further avoided, the wires are not required to be fixed and supported, and the frequent disassembly and installation of the wires and the frequency converter; in addition, one side of the supporting bedplate is provided with two first clamping seats which move back to back or move in opposite directions, the other side of the supporting bedplate is provided with a sliding adjusting mechanism which slides towards the supporting bedplate, and the sliding adjusting mechanism is also provided with a second clamping seat which moves in opposite directions or back to back, so that when the frequency converter is placed on the supporting bedplate, the frequency converter can be positioned and clamped by the first clamping seats and the second clamping seats, the problem of unstable fixation during testing of the frequency converter is avoided, meanwhile, the first clamping seats and the second clamping seats slide, the frequency converter can be adapted to installation and placement of frequency converters with different sizes, and the adaptation range is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a support tool rack according to the present invention;
FIG. 3 is a schematic view of the fixing frame of the present invention;
FIG. 4 is a cross-sectional view taken at A-A of FIG. 2 in accordance with the present invention;
fig. 5 is a schematic structural view of the slide adjusting mechanism of the present invention.
In the figure: 1. supporting the tool rack; 2. side grooves; 3. a bottom chute; 4. a side bottom groove; 5. a first clamping seat; 6. a knob; 7. a slide adjustment mechanism; 8. a motor; 9. a support platen; 10. a fixed mount; 11. an inner frame; 12. a third lead screw; 13. a first lead screw; 14. a receiving groove; 15. lifting the conductive plate; 16. an electrical connection port; 17. a guide groove; 18. positioning the screw hole; 19. positioning the bolt; 20. a worm gear; 21. a worm; 22. an inner cavity; 23. a sliding adjustment seat; 24. a top chute; 25. a second lead screw; 26. a slider; 27. and the second clamping seat.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in figures 1-5, an assembled intelligent tooling fixture for high-voltage testing of a frequency converter comprises a support tooling frame 1 and a fixing frame 10 fixed above the support tooling frame 1, wherein one side of the top end surface of the support tooling frame 1 is provided with a side groove 2, the bottom wall of the side groove 2 is symmetrically provided with two side bottom grooves 4 which are arranged in parallel, the fixing frame 10 is arranged at the other side of the top end surface of the support tooling frame 1 and is close to the side edge, the top end surface of the support tooling frame 1 at one side of the fixing frame 10 is provided with a bottom sliding chute 3, the bottom sliding chute 3 is perpendicular to the different surfaces of the side bottom grooves 4, two first clamping seats 5 which move oppositely or oppositely are arranged in the bottom sliding chute 3 through a first lead screw 13, a support platen 9 is arranged between the bottom sliding chute 3 and the side groove 2, the upper end of the side surface of the fixing frame 10 is provided with an inner frame 11, the inner frame 11 transversely penetrates through the fixing frame 10, third lead screws 12 are arranged in the two side bottom grooves 4, and are connected with sliding adjusting mechanisms 7 sliding in the side grooves 2 through the two third lead screws 12.
As shown in fig. 2 and 4, an inner cavity 22 is formed in the supporting tool table right below the supporting platen 9, and one ends of the two third lead screws 12 extend into the inner cavity 22 and are in transmission connection with the motor 8 mounted on the side surface of the supporting tool frame 1 through worm transmission parts. The worm transmission part comprises a worm wheel 20 fixedly sleeved on the end parts of the two third lead screws 12 and located in the inner cavity 22 and a worm 21 meshed with the worm wheel 20, the two ends of the worm 21 are inserted into the side wall of the inner cavity 22, one end of the worm is fixedly connected with the output shaft of the motor 8 in a coaxial mode, the motor 8 is a servo motor, and the motor 8 can drive the two third lead screws 12 to rotate simultaneously through the worm transmission part when rotating forwards and reversely.
As shown in fig. 3, the power connection mechanism includes a lifting conductive plate 15 disposed in the inner frame 11 and a limiting member for limiting the lifting conductive plate 15, wherein power connection ports 16 correspondingly and uniformly spaced apart from each other are mounted on two side surfaces of the lifting conductive plate 15, a guide groove 17 is formed in the middle of each of the two side surfaces of the inner frame 11, and guide blocks engaged in the guide grooves 17 protrude from the two side surfaces of the lifting conductive plate 15, so as to ensure the stability of the sliding of the lifting conductive plate 15. The locating part is including attacking the locating screw 18 in mount 10 lateral surface and penetrating the guide way 17 and inserting the positioning bolt 19 in the locating screw 18, and the jack with positioning bolt 19 slip adaptation is all attacked to the guide block side of lift current conducting plate 15, can insert different heights by positioning bolt 19, carries out the regulation of height to lift current conducting plate 15, satisfies the user demand under the different converter altitude condition.
As shown in fig. 1, 2 and 5, the sliding adjustment mechanism 7 includes sliding adjustment seats 23 disposed on the two side bottom grooves 4 and two second clamping seats 27 mounted on the upper end surfaces of the sliding adjustment seats 23, sliding blocks 26 engaged in the side bottom grooves 4 are respectively provided on the bottom end surfaces of the sliding adjustment seats 23 in a protruding manner, and the sliding blocks 26 are threaded on the outer side of the third lead screw 12. The top end face of the sliding adjusting seat 23 is provided with a top sliding groove 24 in the middle, a second lead screw 25 is installed in the top sliding groove 24, the bottom end of the second clamping seat 27 slides in the top sliding groove 24, the second lead screw 25 is sleeved with threads, and the two second clamping seats 27 slide in the sliding adjusting seat 23 in opposite directions or back to back through the second lead screw 25. The screw thread at second lead screw 25 both ends and the screw thread at first lead screw 13 both ends are all opposite, and the one end of first lead screw 13 is stretched out bottom spout 3 and is connected with knob 6, the one end of second lead screw 25 is stretched out top spout 24 and is also connected with knob 6, realize that knob 6 drives the rotation of first lead screw 3 and second lead screw 25 respectively, first tight seat 5 of clamp and second press from both sides tight seat 27 and all open towards a side tip of supporting platen 9 and accept groove 14, and form the L type clamp chamber that is located the top through accepting groove 14, the lateral wall of accepting groove 14 all bonds and has the rubber pad, the buffering when convenient clamp is tight to the converter.
The working principle is that when the assembled intelligent frequency converter is tested at high voltage, firstly, the frequency converter is placed on a supporting bedplate 9, and the electric connection terminal of the frequency converter and an electric connection port 16 on a lifting conductive plate 15 are connected by using a lead, then a knob 6 connected with a first lead screw 13 is rotated, the knob 6 rotates to drive the first lead screw 13 to rotate, so that two first clamping seats 5 move oppositely to clamp two sides of one end of the frequency converter, then a motor 8 is started to work, the motor 8 rotates to drive a worm 21 to rotate, and two third lead screws 12 are driven to rotate by meshing with a worm wheel 20, the two third lead screws 12 rotate to drive a sliding adjusting mechanism 7 to move towards one end of the supporting bedplate 9 until one side surface of a bearing groove 14 of a second clamping seat 27 of the sliding adjusting mechanism 7 is contacted with the side surface of the frequency converter, at the moment, the rotation of the motor 8 is stopped, the knob 6 connected with the second lead screw 25 is rotated, the knob 6 rotates to drive the second lead screw 25 to rotate, the two second clamping seats 27 move oppositely, the two sides of the other end of the frequency converter are clamped, the integral clamping and fixing of the frequency converter are completed, finally the lifting conductive plate 15 is electrified, the lifting conductive plate 15 is communicated with the frequency converter, the frequency converter starts high-voltage testing, after the testing is completed, the two knobs 6 are rotated reversely, the first clamping seat 5 and the second clamping seats 27 are separated from the frequency converter, and the new frequency converter starts to be replaced for testing;
when the lifting conductive plate 15 is connected with the frequency converter, the positioning bolt 19 can be screwed, the positioning bolt 19 is taken down from the positioning screw hole 18, at the moment, the positioning bolt 19 does not limit and fix the lifting conductive plate 15 any more, the sliding of the lifting conductive plate 15 in the inner frame 11 can be adjusted, the electric connection port 16 on one side of the lifting conductive plate 15 is conveniently corresponding to an electric connection terminal of the frequency converter, after the corresponding is completed, the positioning bolt 19 is inserted into the positioning screw hole 18 again and is inserted into the lifting conductive plate 15, and the lifting conductive plate 15 is limited again.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than others, combinations of features of different embodiments are also meant to be within the scope of the invention and form different embodiments. For example, in the above embodiments, those skilled in the art can use the combination according to the known technical solutions and technical problems to be solved by the present application.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110497280.1A CN113064039A (en) | 2021-05-07 | 2021-05-07 | Assembled intelligent tool for high-voltage test of frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110497280.1A CN113064039A (en) | 2021-05-07 | 2021-05-07 | Assembled intelligent tool for high-voltage test of frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113064039A true CN113064039A (en) | 2021-07-02 |
Family
ID=76568350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110497280.1A Pending CN113064039A (en) | 2021-05-07 | 2021-05-07 | Assembled intelligent tool for high-voltage test of frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113064039A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115902582A (en) * | 2022-11-25 | 2023-04-04 | 镇江厦泰电子科技有限公司 | A circuit board testing tool and method of use |
| CN115944806A (en) * | 2023-02-27 | 2023-04-11 | 中国人民解放军海军军医大学 | Medical service rescue-based portable retractable infusion support |
| CN117269563A (en) * | 2023-11-22 | 2023-12-22 | 山东联创高科自动化有限公司 | Fan frequency converter detection device |
| CN118338585A (en) * | 2024-06-14 | 2024-07-12 | 啸驰电气股份有限公司 | Combined frequency converter |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205450159U (en) * | 2016-03-17 | 2016-08-10 | 无锡市大元广盛电气股份有限公司 | Frequency converter test device |
| CN206892206U (en) * | 2017-01-19 | 2018-01-16 | 天津华鑫兴业科技有限公司 | A kind of frequency converter Special testing device |
| CN109759649A (en) * | 2019-03-15 | 2019-05-17 | 广东山摩新材料科技有限公司 | A kind of old and useless battery saggar guillotine |
| CN209036047U (en) * | 2018-11-30 | 2019-06-28 | 长安大学 | An easy-to-adjust automobile front brake caliper caliper body processing fixture |
| CN209296835U (en) * | 2018-11-28 | 2019-08-23 | 东莞摩米创新工场电子科技有限公司 | A kind of electronic product performance detection device |
| CN209919374U (en) * | 2019-04-30 | 2020-01-10 | 曾姿婷 | CNC tool is used in processing of cell-phone metal backshell |
| CN210588798U (en) * | 2019-10-16 | 2020-05-22 | 天津中德应用技术大学 | Robot is polished with fixing device who is convenient for trade piece |
| CN212444214U (en) * | 2020-06-11 | 2021-02-02 | 天津裕晟钢管有限公司 | Clamping mechanism of automatic pipe cutting machine |
-
2021
- 2021-05-07 CN CN202110497280.1A patent/CN113064039A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205450159U (en) * | 2016-03-17 | 2016-08-10 | 无锡市大元广盛电气股份有限公司 | Frequency converter test device |
| CN206892206U (en) * | 2017-01-19 | 2018-01-16 | 天津华鑫兴业科技有限公司 | A kind of frequency converter Special testing device |
| CN209296835U (en) * | 2018-11-28 | 2019-08-23 | 东莞摩米创新工场电子科技有限公司 | A kind of electronic product performance detection device |
| CN209036047U (en) * | 2018-11-30 | 2019-06-28 | 长安大学 | An easy-to-adjust automobile front brake caliper caliper body processing fixture |
| CN109759649A (en) * | 2019-03-15 | 2019-05-17 | 广东山摩新材料科技有限公司 | A kind of old and useless battery saggar guillotine |
| CN209919374U (en) * | 2019-04-30 | 2020-01-10 | 曾姿婷 | CNC tool is used in processing of cell-phone metal backshell |
| CN210588798U (en) * | 2019-10-16 | 2020-05-22 | 天津中德应用技术大学 | Robot is polished with fixing device who is convenient for trade piece |
| CN212444214U (en) * | 2020-06-11 | 2021-02-02 | 天津裕晟钢管有限公司 | Clamping mechanism of automatic pipe cutting machine |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115902582A (en) * | 2022-11-25 | 2023-04-04 | 镇江厦泰电子科技有限公司 | A circuit board testing tool and method of use |
| CN115944806A (en) * | 2023-02-27 | 2023-04-11 | 中国人民解放军海军军医大学 | Medical service rescue-based portable retractable infusion support |
| CN117269563A (en) * | 2023-11-22 | 2023-12-22 | 山东联创高科自动化有限公司 | Fan frequency converter detection device |
| CN117269563B (en) * | 2023-11-22 | 2024-01-23 | 山东联创高科自动化有限公司 | Fan frequency converter detection device |
| CN118338585A (en) * | 2024-06-14 | 2024-07-12 | 啸驰电气股份有限公司 | Combined frequency converter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113064039A (en) | Assembled intelligent tool for high-voltage test of frequency converter | |
| CN211375020U (en) | Circuit leakage detection device | |
| CN221174240U (en) | Electron line wire rod testing arrangement | |
| CN218965075U (en) | Clamping and adjusting device for milling cutter machining | |
| CN217020058U (en) | Positioning fixture is used in electric motor car instrument production | |
| CN223333589U (en) | Multifunctional resistor forming device | |
| CN214237785U (en) | Auto parts maintenance anchor clamps | |
| CN212621893U (en) | Tension tester | |
| CN220115640U (en) | Clamp feeding module convenient for fixing sectional materials | |
| CN212110979U (en) | A torsion test device for automotive engineering | |
| CN114453688A (en) | Traction piece tapping screw clamp and using method thereof | |
| CN216215502U (en) | Wire stripping machine inlet wire wheel pressure adjustment knob mechanism | |
| CN212919256U (en) | Bearing processing is with fixed knot structure with adjustable | |
| CN221414654U (en) | Aluminum plate anchor clamps that aluminum plate punching press processing corresponds | |
| CN221953001U (en) | A surface grinding device for producing T-shaped precision joints | |
| CN219747914U (en) | Clamp for automobile interior handle gauge | |
| CN222680216U (en) | Motor housing processing frock | |
| CN222177443U (en) | A fixed tooling for testing new energy motor drive | |
| CN208557223U (en) | Solar panel electric source connecting box device for disassembling | |
| CN220740828U (en) | Angle-adjustable fixing clamp | |
| CN221767501U (en) | Cable mounting bracket | |
| CN212824959U (en) | Fixing device is used in connecting piece processing | |
| CN215433287U (en) | Power supply detection clamping tool for power supply production line assembly | |
| CN218865184U (en) | Oil consumption instrument convenient to install and used for automobile test | |
| CN222609549U (en) | Motor housing processing frock |
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 |
Application publication date: 20210702 |
|
| RJ01 | Rejection of invention patent application after publication |