CN112421404A - PLC-based diesel generator set parallel operation system for thermal power plant security power supply - Google Patents
PLC-based diesel generator set parallel operation system for thermal power plant security power supply Download PDFInfo
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- CN112421404A CN112421404A CN202011225675.8A CN202011225675A CN112421404A CN 112421404 A CN112421404 A CN 112421404A CN 202011225675 A CN202011225675 A CN 202011225675A CN 112421404 A CN112421404 A CN 112421404A
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- air
- parallel operation
- cabinet body
- fixedly connected
- power supply
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/38—Hinged covers or doors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/54—Anti-seismic devices or installations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Ventilation (AREA)
Abstract
The invention relates to the technical field of thermal power plant equipment, and discloses a PLC-based diesel generator set parallel operation system for a security power supply of a thermal power plant, which comprises a cabinet body, wherein a cabinet door is hinged to the front side of the cabinet body, a plurality of control screens are arranged on the cabinet door, a plurality of mounting plates are fixedly clamped and connected to the inner wall of the left side and the right side of the cabinet body through a plurality of groups of symmetrically arranged limiting mechanisms, a parallel operation control device is fixedly mounted at the upper end of each mounting plate through a buffering mechanism, and a heat dissipation mechanism is arranged at the upper end of the cabinet. The parallel operation control device has good buffering protection performance, greatly improves the heat dissipation efficiency of the parallel operation control device, and ensures the normal use of the parallel operation control device.
Description
Technical Field
The invention relates to the technical field of thermal power plant equipment, in particular to a PLC-based diesel generator set parallel operation system for a security power supply of a thermal power plant.
Background
At present, a special diesel generator set is generally selected as an alternating-current accident security power supply in power plants at home and abroad, a parallel operation control system can be used when the diesel generator set is used as the alternating-current accident security power supply, and the parallel operation control system can realize the configuration operation of increasing or decreasing the diesel generator set.
The patent with the patent application publication number of CN 110265903A provides a diesel generator set grid-connected system, which is characterized by comprising a control cabinet and a diesel generator set, wherein the control cabinet comprises a box body and a controller; limiting plates are mounted on two sides of the interior of the box body, an air inlet pipe is fixedly mounted on one limiting plate and extends out of the box body, a dust removal net is arranged in the air inlet pipe, a fuse cushion plate is mounted at a gap between the limiting plate and the box body, a bottom plate is fixedly mounted on the fuse cushion plate, fuses are fixedly mounted on the bottom plate through two screwed screws, two centrifugal fans are symmetrically mounted on the other limiting plate, and air outlet masks are mounted outside the centrifugal fans; pressing strips are uniformly arranged on the top of the limiting plate at equal intervals, and a controller is arranged on the top of each pressing strip;
the patent with the patent publication number of CN 205070462U provides a diesel generator set control cabinet of a generator grid-connected control system, which comprises a first cabinet body, a second cabinet body, a third cabinet body and a fourth cabinet body, wherein the cabinet doors of the first cabinet body, the second cabinet body, the third cabinet body and the fourth cabinet body are respectively provided with a circuit breaker, a control area, an indicator lamp area and a heat dissipation window from top to bottom, the control area is provided with a selector switch and a controller, the indicator lamp area is provided with an emergency stop button, an operation indicator lamp, an on-line indicator lamp, a fault indicator lamp and an emergency stop indicator lamp, a grounding detection area is further arranged between the circuit breaker and the control area of the third cabinet body, and the grounding detection area is provided with an alternating current ground connection surface, a C ground connection head, a grounding test head, a B-phase grounding head and an;
the patent with the patent publication number of CN 206099361U proposes a parallel operation cabinet of a diesel generator set, which comprises a cabinet body, a controller, a charging module, a speed control module and a control circuit, wherein the controller, the charging module, the speed control module and the control circuit are arranged in the cabinet body; the parallel cabinet diesel generator set is arranged between the diesel generator sets, and the controller controls the switching on and switching off of the diesel generator sets;
the form of parallel operation switch board in the above-mentioned patent is fixed, and heat dissipation and buffering protective properties are all relatively poor, can not provide stable operational environment to parallel operation controlling means, have influenced parallel operation controlling means's life.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, a parallel operation control cabinet is fixed in form, poor in heat dissipation and buffering protection performance, incapable of providing a stable operation environment for a parallel operation control device and influenced in service life of the parallel operation control device, and provides a PLC-based diesel generator set parallel operation system for a thermal power plant security power supply.
In order to achieve the purpose, the invention adopts the following technical scheme:
a PLC-based diesel generator set parallel operation system for a security power supply of a thermal power plant comprises a cabinet body, wherein a cabinet door is hinged to the front side of the cabinet body, a plurality of control screens are arranged on the cabinet door, a plurality of mounting plates are fixedly clamped and connected to the inner wall of the left side and the right side of the cabinet body through a plurality of groups of limiting mechanisms symmetrically arranged, a parallel operation control device is fixedly mounted at the upper end of each mounting plate through a buffer mechanism, and a heat dissipation mechanism is arranged at the upper end of the cabinet body;
the buffer mechanism comprises a plurality of buffer springs fixedly connected to the upper end of the mounting plate, and the upper ends of the plurality of buffer springs are fixedly connected with the same buffer supporting plate fixedly arranged at the lower end of the parallel machine control device;
the heat dissipation mechanism is including fixed hair-dryer and the air exhauster that sets up in cabinet body upper end, the fixed intercommunication of air outlet of hair-dryer has a tuber pipe, the even fixed intercommunication of lateral wall that goes out the tuber pipe has a plurality of blast pipes, the one end of blast pipe is run through and is stretched into the internal and fixedly connected with air blast cover of cabinet, the fixed intercommunication of air intake of air exhauster has the air-supply line, the even fixed intercommunication of pipe wall of air-supply line has a plurality of exhaust columns, the one end of exhaust column is run through and is stretched into the internal and fixedly connected with air blast cover of cabinet.
Preferably, the limiting mechanism comprises two clamping plates which are arranged in an up-down symmetrical mode relative to the mounting plate, and limiting screw holes are symmetrically formed in the surfaces of the clamping plates and the mounting plate and are fixedly connected through limiting bolts.
Preferably, the equal fixedly connected with guide bar in lower extreme four corners department of buffering layer board, the lower extreme of guide bar runs through the lower extreme setting and the fixedly connected with anticreep board of mounting panel.
Preferably, a dust screen is fixedly arranged at the air inlet of the blower.
Preferably, the blower and the exhaust fan are both electrically connected with an external power supply through a control switch.
Preferably, the air blowing cover and the air draft cover are both arranged on the side wall of the parallel operation control device.
Compared with the prior art, the invention provides a PLC-based diesel generator set parallel operation system for a security power supply of a thermal power plant, which has the following beneficial effects:
1. this diesel generating set parallel operation system for security power supply of thermal power plant based on PLC, stop gear and buffer gear through being equipped with, the cardboard that sets up through longitudinal symmetry earlier makes the mounting panel card after between two cardboards the fixed quick fixation that realizes the mounting panel of rethread spacing bolt, parallel operation controlling means is fixed to be set up in buffer gear's upper end, the shaking force passes through buffering layer board extrusion buffer spring when receiving jolt vibrations, the resilience force that utilizes buffer spring deformation to produce can effectively cushion the shock attenuation to parallel operation controlling means, it is good to parallel operation controlling means's buffering protectiveness.
2. This diesel generating set parallel operation system for security power supply of thermal power plant based on PLC, heat dissipation mechanism through being equipped with, start hair-dryer and air exhauster when carrying out work, the hair-dryer is to going out the intraductal air delivery stream that delivers air, and blow off fast to the heat of parallel operation controlling means lateral wall through blowout tuber pipe and blowout wind cover blowout, the air exhauster is convulsions to the air inlet intraductal, and then carry out quick convulsions to parallel operation controlling means opposite side through exhaust column and suction hood, the circulation of air of acceleration parallel operation controlling means department that can be very big, can take away the heat fast, parallel operation controlling means's radiating efficiency has been improved greatly, parallel operation controlling means's normal use has been guaranteed.
And the parts which are not involved in the device are the same as or can be realized by adopting the prior art, the parallel operation control device has good buffering protection, the heat dissipation efficiency of the parallel operation control device is greatly improved, and the normal use of the parallel operation control device is ensured.
Drawings
Fig. 1 is a schematic structural diagram of a parallel operation system of a diesel generator set for a thermal power plant security power supply based on a PLC;
fig. 2 is a schematic cross-sectional structural diagram of a parallel operation system of a diesel generator set for a thermal power plant security power supply based on a PLC.
In the figure: the air conditioner comprises a cabinet body 1, a cabinet door 2, a control panel 3, a limiting mechanism 4, a clamping plate 41, a limiting bolt 42, a mounting plate 5, a buffering mechanism 6, a buffering spring 61, a buffering supporting plate 62, a parallel operation control device 7, a heat dissipation mechanism 8, a blower 81, an exhaust fan 82, an air outlet pipe 83, an air spraying pipe 84, an air spraying cover 85, an air inlet pipe 86, an air exhaust pipe 87, an air exhaust cover 88, a guide rod 9, an anti-dropping plate 10 and a dustproof net 11.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and 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.
Embodiment 1 as shown in fig. 1-2, this kind of diesel generating set parallel operation system for thermal power plant security power supply based on PLC includes cabinet body 1, cabinet door 2 is articulated to the front side of cabinet body 1, there are multiple control screens 3 on cabinet door 2, cabinet body 1 left and right opposite side inner wall through the fixed joint of the multiple-unit stop gear 4 that sets up symmetrically has multiple mounting panels 5, the upper end of mounting panel 5 is fixed with parallel operation controlling device 7 through the buffer gear 6, the upper end of cabinet body 1 is equipped with the heat dissipation mechanism 8;
the buffering mechanism 6 comprises a plurality of buffering springs 61 fixedly connected to the upper end of the mounting plate 5, and the upper ends of the buffering springs 61 are fixedly connected with a buffering supporting plate 62 fixedly arranged at the lower end of the parallel machine control device 7;
its heat dissipation mechanism 8 is including fixed hair-dryer 81 and the air exhauster 82 that sets up in cabinet body 1 upper end, the fixed intercommunication of air outlet of hair-dryer 81 has out tuber pipe 83, the even fixed intercommunication of the lateral wall that goes out tuber pipe 83 has a plurality of blast nozzles 84, the one end of blast nozzle 84 runs through and stretches into cabinet body 1 interior and fixedly connected with air-blast cover 85, the fixed intercommunication of air intake of air exhauster 82 has an air-supply line 86, the even fixed intercommunication of pipe wall of air-supply line 86 has a plurality of exhaust columns 87, the one end of exhaust column 87 runs through and stretches into cabinet body 1 interior and fixedly connected with air-draft cover 88.
Embodiment 3 is based on embodiment 1, as shown in fig. 1-2, the four corners of the lower end of the buffering support plate 62 are fixedly connected with guide rods 9, the lower end of each guide rod 9 penetrates through the lower end of the mounting plate 5, and the anti-dropping plate 10 is fixedly connected with the lower end of the guide rod 9.
Example 4 as shown in fig. 2, the dust screen 11 is fixed to the air inlet of the blower 81 of example 1.
Example 6 as shown in fig. 2 based on example 1, both the air draft cover 85 and the air draft cover 88 are provided at the side wall of the parallel machine control device 7.
Embodiment 7 as shown in fig. 1-2, the diesel generator set parallel operation system for the thermal power plant security power supply based on the PLC includes a cabinet body 1, a cabinet door 2 is hinged to the front side of the cabinet body 1, a plurality of control screens 3 are arranged on the cabinet door 2, a plurality of mounting plates 5 are fixedly clamped on the inner wall of the left and right opposite sides of the cabinet body 1 through a plurality of groups of limiting mechanisms 4 which are symmetrically arranged, a parallel operation control device 7 is fixedly mounted on the upper ends of the mounting plates 5 through a buffer mechanism 6, and a heat dissipation mechanism 8 is arranged on the upper end of the cabinet body 1;
the buffer mechanism 6 comprises a plurality of buffer springs 61 fixedly connected to the upper end of the mounting plate 5, and the upper ends of the plurality of buffer springs 61 are fixedly connected with a same buffer supporting plate 62 fixedly arranged at the lower end of the parallel machine control device 7; the heat dissipation mechanism 8 comprises a blower 81 and an exhaust fan 82 which are fixedly arranged at the upper end of the cabinet body 1, an air outlet of the blower 81 is fixedly communicated with an air outlet pipe 83, the side wall of the air outlet pipe 83 is uniformly and fixedly communicated with a plurality of air injection pipes 84, one end of each air injection pipe 84 penetrates through the cabinet body 1 and is fixedly connected with an air injection cover 85, an air inlet of the exhaust fan 82 is fixedly communicated with an air inlet pipe 86, the pipe wall of each air inlet pipe 86 is uniformly and fixedly communicated with a plurality of exhaust pipes 87, and one end of each exhaust pipe 87 penetrates through the cabinet body 1 and is fixedly connected with an exhaust cover;
the limiting mechanism 4 comprises two clamping plates 41 which are vertically symmetrically arranged relative to the mounting plate 5, and limiting screw holes are symmetrically formed in the surfaces of the clamping plates 41 and the mounting plate 5 and are fixedly connected through limiting bolts 42; the four corners of the lower end of the buffer supporting plate 62 are fixedly connected with guide rods 9, and the lower ends of the guide rods 9 penetrate through the lower end of the mounting plate 5 and are fixedly connected with anti-falling plates 10; a dust screen 11 is fixedly arranged at the air inlet of the blower 81; the blower 81 and the exhaust fan 82 are both electrically connected with an external power supply through a control switch; the air blowing cover 85 and the air draft cover 88 are both disposed at the side wall of the parallel machine control device 7.
In the invention, when in use, the mounting plate 5 is clamped between the two clamping plates 41 through the clamping plates 41 which are symmetrically arranged up and down through the limiting mechanism 4 and the buffer mechanism 6, then the mounting plate 5 is fixed through the limiting bolt 42 to realize quick fixation of the mounting plate 5, the parallel machine control device is fixedly arranged at the upper end of the buffer mechanism 6, when the parallel machine control device is bumpy and vibrated, the buffer spring 61 is extruded by the vibration force through the buffer supporting plate 62, the rebound force generated by the deformation of the buffer spring 61 can effectively buffer and damp the parallel machine control device 7, the buffer protection performance of the parallel machine control device 7 is good, the blower 81 and the exhaust fan 82 are started when the parallel machine control device works through the arranged heat dissipation mechanism 8, the blower 81 conveys air flow into the air outlet pipe 83, the air flow is sprayed out through the air pipe spray 84 and the air spray hood 85 to quickly blow heat on the side wall of the parallel machine control device 7, and then carry out quick convulsions to parallel operation controlling means 7 opposite side through exhaust column 87 and draft cover 88, the circulation of air of parallel operation controlling means 7 department can be very big accelerate, can take away the heat fast, has improved parallel operation controlling means 7's radiating efficiency greatly, has guaranteed parallel operation controlling means's normal use.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. A diesel generating set parallel operation system for a thermal power plant security power supply based on a PLC (programmable logic controller), comprises a cabinet body (1), and is characterized in that a cabinet door (2) is hinged to the front side of the cabinet body (1), a plurality of control screens (3) are arranged on the cabinet door (2), a plurality of mounting plates (5) are fixedly clamped on the inner wall of the left side and the right side of the cabinet body (1) through a plurality of groups of symmetrically arranged limiting mechanisms (4), a parallel operation control device (7) is fixedly mounted at the upper end of each mounting plate (5) through a buffer mechanism (6), and a heat dissipation mechanism (8) is arranged at the upper end of the cabinet body (1);
the buffer mechanism (6) comprises a plurality of buffer springs (61) fixedly connected to the upper end of the mounting plate (5), and the upper ends of the buffer springs (61) are fixedly connected with a buffer supporting plate (62) fixedly arranged at the lower end of the parallel operation control device (7);
heat dissipation mechanism (8) are including fixed hair-dryer (81) and air exhauster (82) that set up in the cabinet body (1) upper end, the fixed intercommunication of air outlet of hair-dryer (81) has a tuber pipe (83), the even fixed intercommunication of lateral wall that goes out tuber pipe (83) has a plurality of blast pipes (84), the one end of blast pipe (84) is run through and is stretched into in the cabinet body (1) and fixedly connected with air-jet cover (85), the fixed intercommunication of air intake of air exhauster (82) has air-supply line (86), the even fixed intercommunication of pipe wall of air-supply line (86) has a plurality of exhaust column (87), the one end of exhaust column (87) is run through and is stretched into in the cabinet body (1) and fixedly connected with air-jet cover (88).
2. The PLC-based diesel generator set parallel operation system for the security power supply of the thermal power plant is characterized in that the limiting mechanism (4) comprises two clamping plates (41) which are arranged in an up-down symmetrical mode relative to the mounting plate (5), and limiting screw holes are symmetrically formed in the surfaces of the clamping plates (41) and the mounting plate (5) and are fixedly connected through limiting bolts (42).
3. The PLC-based diesel generator set parallel operation system for the emergency power supply of the thermal power plant is characterized in that guide rods (9) are fixedly connected to four corners of the lower end of the buffering supporting plate (62), and the lower end of each guide rod (9) penetrates through the lower end of the mounting plate (5) and is fixedly connected with an anti-falling plate (10).
4. The PLC-based diesel generator set parallel operation system for the emergency power supply of the thermal power plant is characterized in that a dust screen (11) is fixedly arranged at an air inlet of the blower (81).
5. The PLC-based diesel generator set parallel operation system for the emergency power supply of the thermal power plant is characterized in that the blower (81) and the exhaust fan (82) are both electrically connected with an external power supply through a control switch.
6. The PLC-based diesel generator set parallel operation system for the thermal power plant security power supply is characterized in that the air blowing cover (85) and the air draft cover (88) are both arranged on the side wall of the parallel operation control device (7).
7. The PLC-based diesel generator set parallel operation system for the thermal power plant security power supply according to claim 1, it is characterized in that a cabinet door (2) is hinged at the front side of the cabinet body (1), a plurality of control screens (3) are arranged on the cabinet door (2), a plurality of mounting plates (5) are fixedly clamped on the inner wall of the left opposite side and the right opposite side of the cabinet body (1) through a plurality of groups of limiting mechanisms (4) which are symmetrically arranged, the upper end of the mounting plate (5) is fixedly provided with a parallel machine control device (7) through a buffer mechanism (6), the upper end of the cabinet body (1) is provided with a heat dissipation mechanism (8), the buffer mechanism (6) comprises a plurality of buffer springs (61) fixedly connected to the upper end of the mounting plate (5), and the upper ends of the buffer springs (61) are fixedly connected with the same buffer supporting plate (62) fixedly arranged at the lower end of the parallel operation control device (7);
the heat dissipation mechanism (8) comprises a blower (81) and an exhaust fan (82) which are fixedly arranged at the upper end of the cabinet body (1), an air outlet of the blower (81) is fixedly communicated with an air outlet pipe (83), the side wall of the air outlet pipe (83) is uniformly and fixedly communicated with a plurality of air spraying pipes (84), one ends of the air spraying pipes (84) penetrate through the cabinet body (1) and are fixedly connected with an air spraying cover (85), air inlets of the exhaust fan (82) are fixedly communicated with an air inlet pipe (86), the pipe wall of the air inlet pipe (86) is uniformly and fixedly communicated with a plurality of exhaust pipes (87), and one ends of the exhaust pipes (87) penetrate through the cabinet body (1) and are fixedly connected with an exhaust cover (88);
stop gear (4) include two cardboard (41) that set up about mounting panel (5) longitudinal symmetry, the surface symmetry of cardboard (41) and mounting panel (5) has seted up spacing screw and has passed through spacing bolt (42) fixed connection, the equal fixedly connected with guide bar (9) of lower extreme four corners department of buffering layer board (62), the lower extreme that the lower extreme of guide bar (9) runs through mounting panel (5) sets up and fixedly connected with anticreep board (10), the fixed dust screen (11) that are provided with of air intake department of hair-dryer (81), hair-dryer (81) and air exhauster (82) are all through control switch and the power electric connection of peripheral hardware, lateral wall department that fan housing (85) and air exhauster (88) all are located parallel machine controlling means (7) sets up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011225675.8A CN112421404A (en) | 2020-11-06 | 2020-11-06 | PLC-based diesel generator set parallel operation system for thermal power plant security power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011225675.8A CN112421404A (en) | 2020-11-06 | 2020-11-06 | PLC-based diesel generator set parallel operation system for thermal power plant security power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112421404A true CN112421404A (en) | 2021-02-26 |
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ID=74827671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011225675.8A Withdrawn CN112421404A (en) | 2020-11-06 | 2020-11-06 | PLC-based diesel generator set parallel operation system for thermal power plant security power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112421404A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113012726A (en) * | 2021-03-30 | 2021-06-22 | 西安交通大学城市学院 | Computer hard disk installs auxiliary assembly |
| CN113747707A (en) * | 2021-08-18 | 2021-12-03 | 杭州向正科技有限公司 | Exhibition room is integrated cabinet of circuit for multiple equipment convenient to overhaul |
-
2020
- 2020-11-06 CN CN202011225675.8A patent/CN112421404A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113012726A (en) * | 2021-03-30 | 2021-06-22 | 西安交通大学城市学院 | Computer hard disk installs auxiliary assembly |
| CN113012726B (en) * | 2021-03-30 | 2022-04-08 | 西安交通大学城市学院 | Computer hard disk installs auxiliary assembly |
| CN113747707A (en) * | 2021-08-18 | 2021-12-03 | 杭州向正科技有限公司 | Exhibition room is integrated cabinet of circuit for multiple equipment convenient to overhaul |
| CN113747707B (en) * | 2021-08-18 | 2023-03-14 | 杭州向正科技有限公司 | Exhibition room is circuit integration cabinet for multiple equipment convenient to overhaul |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210226 |
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| WW01 | Invention patent application withdrawn after publication |