CN112382960A - Effectual electric power cabinet of shock attenuation - Google Patents

Effectual electric power cabinet of shock attenuation Download PDF

Info

Publication number
CN112382960A
CN112382960A CN202011262284.3A CN202011262284A CN112382960A CN 112382960 A CN112382960 A CN 112382960A CN 202011262284 A CN202011262284 A CN 202011262284A CN 112382960 A CN112382960 A CN 112382960A
Authority
CN
China
Prior art keywords
cabinet body
connecting rod
electric power
base
internal thread
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.)
Withdrawn
Application number
CN202011262284.3A
Other languages
Chinese (zh)
Inventor
阳四花
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202011262284.3A priority Critical patent/CN112382960A/en
Publication of CN112382960A publication Critical patent/CN112382960A/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/54Anti-seismic devices or installations
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/30Cabinet-type casings; Parts thereof or accessories therefor
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/30Cabinet-type casings; Parts thereof or accessories therefor
    • H02B1/303Bases or feet
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/50Pedestal- or pad-mounted casings; Parts thereof or accessories therefor
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/56Cooling; Ventilation
    • H02B1/565Cooling; Ventilation for cabinets

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

The invention discloses an electric power cabinet with good damping effect, which comprises a cabinet body, wherein the cabinet body is arranged in a mounting groove formed on a base, a damping unit is connected between the cabinet body and the base, the damping unit comprises a bidirectional screw rod, an internal thread sleeve, a first connecting rod, a second connecting rod, a mounting plate, a compression spring and an extension spring, the bidirectional screw rod is horizontally and rotatably arranged in the mounting groove of the base, the electric power cabinet also comprises a heat dissipation unit, the heat dissipation unit comprises a heat dissipation fan, a motor, a rotary table, a third connecting rod and a nozzle, the damping unit is arranged, the two internal thread sleeves are driven to mutually approach through the bidirectional screw rod, the internal thread sleeve drives the mounting plate to move upwards through the first connecting rod, the compression amount of the compression spring is adjusted, the internal thread sleeve pulls the extension spring through the second connecting rod, the extension spring pulls the cabinet body downwards, the, the purpose of adjusting the damping effect is achieved, the radiating unit is arranged, the radiating range is expanded, and the radiating efficiency is improved.

Description

Effectual electric power cabinet of shock attenuation
Technical Field
The invention relates to the technical field of electric power, in particular to an electric power cabinet with a good damping effect.
Background
The power cabinet (box), the lighting cabinet (box) and the metering cabinet (box) are the final-stage equipment of the power distribution system. The electric cabinet is a general name of a motor control center. The power cabinet is used in the occasions with dispersed loads and less loops; the motor control center is used for occasions with concentrated loads and more loops. They distribute the power of a certain circuit of the upper-level distribution equipment to the nearby loads. This level of equipment should provide protection, monitoring and control of the load.
Electric power cabinet internal plant during operation can produce vibrations, perhaps receives outside impact and more can produce vibrations, is unfavorable to electric power cabinet's life like this, and current electric power cabinet shock attenuation generally all is realized through single damping spring, can't carry out the regulation of shock attenuation effect moreover.
Disclosure of Invention
The invention aims to provide an electric power cabinet with a good damping effect to solve the problems.
In order to achieve the purpose, the invention provides the following technical scheme:
an electric power cabinet with good damping effect comprises a cabinet body, wherein the cabinet body is arranged in a mounting groove formed in a base, dust screens are arranged on two side walls and the top of the cabinet body, a damping unit is connected between the cabinet body and the base and comprises a bidirectional screw rod, an internal thread sleeve, a first connecting rod, a second connecting rod, a mounting plate, a compression spring and an extension spring, the bidirectional screw rod is horizontally and rotatably arranged in the mounting groove of the base, in the embodiment, the bidirectional screw rod is preferably rotatably connected with the base through a bearing, the internal thread sleeve is respectively and spirally connected on two thread sections of the bidirectional screw rod and is slidably connected with the base, the internal thread sleeve is hinged with one end of the first connecting rod, the other ends of the two first connecting rods are hinged with the mounting plate, a plurality of compression springs are connected between the upper surface of the mounting plate and the bottom of the cabinet body, the second connecting, an extension spring is connected between the connecting plate and the bottom of the cabinet body.
On the basis of the technical scheme, the invention also provides the following optional technical scheme:
in one alternative: the top of the cabinet body is fixedly provided with a rain baffle which is umbrella-shaped.
In one alternative: the bottom of the base is uniformly and symmetrically fixedly provided with rollers, and the rollers are self-locking rollers.
In one alternative: one end of the bidirectional screw rod extends to the outside of the base and is fixed with a rocking handle.
In one alternative: the bottom of the internal thread sleeve is fixed with a sliding block, and the base is provided with a sliding groove for the sliding connection of the sliding block.
In one alternative: and pull rings connected with the extension springs are respectively arranged at the connecting plate and the bottom of the cabinet body.
In one alternative: the cabinet is characterized in that a plurality of piston rods are circumferentially fixed on the side wall of the cabinet body, a cylinder body is fixedly mounted on the base below the piston rods, the bottom ends of the piston rods extend into the cylinder body and are fixed with pistons, through holes for the piston rods to pass through are formed in the top of the cylinder body, sealing rings are adhered to the inner walls of the through holes, and the bottoms of adjacent cylinder bodies are communicated through communicating pipes.
In one alternative: still including heat dissipation unit, heat dissipation unit includes cooling fan, motor, carousel, third connecting rod and nozzle, from last down equidistance interval is articulated on the inner wall of cabinet body one side installs many installation poles, and the one end demountable installation that the internal wall of cabinet was kept away from to the installation pole has the nozzle, is connected with the hose on the nozzle, and the hose other end is connected with the air outlet of the cooling fan that cabinet body externally mounted had, and cooling fan externally mounted has the dust cover, many connect through the connecting rod between the installation pole, and the connecting rod is articulated with the installation pole, and the connecting rod top is articulated with third connecting rod one end, and the eccentric articulated installation of the third connecting rod other end is on the carousel, carousel fixed mounting is on the.
In one alternative: the lateral wall of the cabinet body far away from the nozzle is provided with an exhaust fan, and the exhaust fan is used for extracting hot air in the cabinet body.
Compared with the prior art, the invention has the following beneficial effects:
1. the damping device is provided with a damping unit, wherein the damping unit comprises a bidirectional screw rod, two internal thread sleeves, a first connecting rod, a second connecting rod, a mounting plate, a compression spring and an extension spring, the compression spring can play a damping role, the two internal thread sleeves are driven to be close to each other through the bidirectional screw rod, the internal thread sleeves drive the mounting plate to move upwards through the first connecting rod, the compression amount of the compression spring is adjusted, meanwhile, the extension spring is pulled by the internal thread sleeves through the second connecting rod, the cabinet body is pulled downwards by the extension spring, the distance between the cabinet body and the mounting plate is further adjusted, the damping force of the compression spring is adjusted, and the purpose of adjusting the;
2. the heat dissipation unit is arranged and comprises a heat dissipation fan, a motor, a rotary table, a third connecting rod and a nozzle, the heat dissipation fan works, the nozzle sprays air to dissipate heat of the electronic element, the rotary table is driven to rotate through the motor, the rotary table drives the connecting rod to move through the third connecting rod, the third connecting rod drives the installation rod to swing, the installation rod drives the nozzle to swing, the heat dissipation range is expanded, and the heat dissipation efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.
Notations for reference numerals: 1-base, 2-two-way screw rod, 3-rocking handle, 4-cylinder body, 5-communicating pipe, 6-piston rod, 7-exhaust fan, 8-dust screen, 9-cabinet body, 10-rain baffle, 11-rotary table, 12-nozzle, 13-mounting rod, 14-connecting rod, 15-compression spring, 16-mounting plate, 17-first connecting rod, 18-second connecting rod, 19-extension spring, 20-connecting plate, 21-piston, 22-bearing, 23-internal thread sleeve, 24-slide block, 25-roller, 26-cooling fan and 27-third connecting rod.
Detailed Description
The present invention will be described in detail with reference to the following embodiments, wherein like or similar elements are designated by like reference numerals throughout the several views, and wherein the shape, thickness or height of the various elements may be expanded or reduced in practice. The examples are given solely for the purpose of illustration and are not intended to limit the scope of the invention. Any obvious modifications or variations can be made to the present invention without departing from the spirit or scope of the present invention.
Example 1
Referring to fig. 1, in the embodiment of the present invention, an electric power cabinet with good shock absorption effect includes a cabinet body 9, the cabinet body 9 is installed in an installation groove formed on a base 1, a rain baffle 10 is fixedly installed at the top of the cabinet body 9, the rain baffle 10 is preferably umbrella-shaped, dust screens 8 are installed on two side walls and the top of the cabinet body 9, so as to facilitate dissipation of heat in the cabinet body 9, in this embodiment, the dust screens 8 are preferably installed on the cabinet body 9 through screws, rollers 25 are uniformly and symmetrically installed at the bottom of the base 1, the rollers 25 are self-locking rollers, so as to facilitate movement of the apparatus, a shock absorption unit is connected between the cabinet body 9 and the base 1, the shock absorption unit includes a bidirectional screw rod 2, an internal thread sleeve 23, a first connecting rod 17, a second connecting rod 18, an installation plate 16, a compression spring 15 and an extension spring 19, the bidirectional screw, in this embodiment, the bidirectional screw rod 2 is preferably rotatably connected to the base 1 through a bearing 22, one end of the bidirectional screw rod 2 extends to the outside of the base 1 and is fixed with the rocking handle 3, in this embodiment, the rocking handle 3 is preferably fixed to the bidirectional screw rod 2 through welding, two thread sections of the bidirectional screw rod 2 are both connected with an internal thread sleeve 23 in a threaded manner, the internal thread sleeve 23 is slidably connected to the base 1, in this embodiment, a slider 24 is fixed to the bottom of the internal thread sleeve 23, a sliding groove for slidably connecting the slider 24 is formed in the base 1, the internal thread sleeve 23 is hinged to one end of the first connecting rod 17, the other ends of the two first connecting rods 17 are hinged to the mounting plate 16, a plurality of compression springs 15 are connected between the upper surface of the mounting plate 16 and the bottom of the cabinet 9, in this embodiment, both ends of the compression springs 15 are preferably fixed to the mounting plate 16, in this embodiment, the connecting plate 20 and the bottom of the cabinet body 9 are respectively provided with a pull ring connected with the extension spring 19, when the refrigerator works, the compression spring 15 can play a role of damping, the rocking handle 3 drives the bidirectional screw rod 2 to rotate, the bidirectional screw rod 2 drives the two internal thread sleeves 23 to mutually approach, the internal thread sleeves 23 drive the mounting plate 16 to move upwards through the first connecting rod 17, so that the compression amount of the compression spring 15 is adjusted, meanwhile, the internal thread sleeves 23 pull the extension spring 19 through the second connecting rod 18, the extension spring 19 pulls the cabinet body 9 downwards, the distance between the cabinet body 9 and the mounting plate 16 is further adjusted, the damping force of the compression spring 15 is adjusted, and the purpose of adjusting the damping effect is achieved;
furthermore, a plurality of piston rods 6 are circumferentially fixed on the side wall of the cabinet body 9, in this embodiment, the piston rods 6 are fixed with the cabinet body 9 by welding, a cylinder body 4 is fixedly installed below the piston rods 6 on the base 1, the bottom ends of the piston rods 6 extend into the cylinder body 4 and are fixed with pistons 21, the top of the cylinder body 4 is provided with through holes for the piston rods 6 to pass through, and sealing rings are adhered to the inner walls of the through holes to prevent air leakage;
further, in order to dissipate heat of electronic components in the cabinet body 9, the electronic component heat dissipation device further comprises a heat dissipation unit, wherein the heat dissipation unit comprises a heat dissipation fan 26, a motor, a rotary table 11, a third connecting rod 27 and a nozzle 12, a plurality of installation rods 13 are hinged on the inner wall of one side of the cabinet body 9 at equal intervals from top to bottom, the nozzle 12 is detachably installed at one end, away from the inner wall of the cabinet body 9, of each installation rod 13, a hose is connected onto each nozzle 12, the other end of each hose is connected with an air outlet of the heat dissipation fan 26 installed outside the cabinet body 9, a dust cover is installed outside the heat dissipation fan 26, the installation rods 13 are connected through connecting rods 14, each connecting rod 14 is hinged to each installation rod 13, the top end of each connecting rod 14 is hinged to one end of the third connecting rod 27, the other end of the third, the heat dissipation fan 26 works, the nozzle 12 sprays air to dissipate heat of the electronic component, the motor drives the rotary table 11 to rotate, the rotary table 11 drives the connecting rod 14 to move through the third connecting rod 27, the third connecting rod 27 drives the mounting rod 13 to swing, and the mounting rod 13 drives the nozzle 12 to swing, so that the heat dissipation range is enlarged, and the heat dissipation efficiency is improved.
Example 2
Referring to fig. 2, the embodiment of the present invention is different from embodiment 1 in that a suction fan 7 is installed on a side wall of the cabinet 9 away from the nozzle 12, and the suction fan 7 is used for extracting hot air in the cabinet 9, so as to further improve heat dissipation efficiency.
The working principle of the invention is as follows: when the shock absorption cabinet works, the compression spring 15 can play a shock absorption role, the rocking handle 3 drives the bidirectional screw rod 2 to rotate, the bidirectional screw rod 2 drives the two internal thread sleeves 23 to approach each other, the internal thread sleeves 23 drive the mounting plate 16 to move upwards through the first connecting rod 17, the compression amount of the compression spring 15 is adjusted, meanwhile, the internal thread sleeves 23 pull the extension spring 19 through the second connecting rod 18, the extension spring 19 pulls the cabinet body 9 downwards, the distance between the cabinet body 9 and the mounting plate 16 is further adjusted, the shock absorption force of the compression spring 15 is adjusted, and the purpose of adjusting the shock absorption effect is achieved; when the cabinet body 9 vibrates, the piston 21 is driven to move through the piston rod 6, and the space on the two sides of the piston 21 in the cylinder body 4 is closed, so that the air pressure in the cylinder body 4 can further buffer and damp the cabinet body 9, and the damping effect is further improved; the heat dissipation fan 26 works, the nozzle 12 sprays air to dissipate heat of the electronic component, the motor drives the rotary table 11 to rotate, the rotary table 11 drives the connecting rod 14 to move through the third connecting rod 27, the third connecting rod 27 drives the mounting rod 13 to swing, and the mounting rod 13 drives the nozzle 12 to swing, so that the heat dissipation range is enlarged, and the heat dissipation efficiency is improved.
The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions should be covered within the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims (8)

1. The electric power cabinet with good damping effect comprises a cabinet body (9), wherein the cabinet body (9) is arranged in a mounting groove formed in a base (1), dust screens (8) are respectively arranged on two side walls and the top of the cabinet body (9), and the electric power cabinet is characterized in that a damping unit is connected between the cabinet body (9) and the base (1) and comprises a bidirectional screw rod (2), an internal thread sleeve (23), a first connecting rod (17), a second connecting rod (18), a mounting plate (16), a compression spring (15) and a tension spring (19), the bidirectional screw rod (2) is horizontally and rotatably arranged in the mounting groove of the base (1), in the embodiment, the bidirectional screw rod (2) is preferably and rotatably connected with the base (1) through a bearing (22), the internal thread sleeve (23) is respectively and spirally connected on two thread sections of the bidirectional screw rod (2), and the internal thread sleeve (23) is slidably connected with the base (1, internal thread cover (23) are articulated with first connecting rod (17) one end, and two first connecting rod (17) other ends are articulated with mounting panel (16), are connected with many compression spring (15) between mounting panel (16) upper surface and the cabinet body (9) bottom, still articulate on internal thread cover (23) has second connecting rod (18), and second connecting rod (18) are close to the one end of the cabinet body (9) and articulate there is connecting plate (20), is connected with extension spring (19) between connecting plate (20) and the cabinet body (9) bottom.
2. The electric power cabinet with good damping effect according to claim 1, wherein a rain baffle (10) is fixedly installed at the top of the cabinet body (9), and the rain baffle (10) is umbrella-shaped.
3. The electric power cabinet with good shock absorption effect according to claim 1, wherein the bottom of the base (1) is uniformly and symmetrically fixedly provided with rollers (25), and the rollers (25) are self-locking rollers.
4. The electric power cabinet with good damping effect according to claim 1, wherein one end of the bidirectional screw rod (2) extends to the outside of the base (1) and is fixed with a rocking handle (3).
5. The electric power cabinet with good damping effect according to claim 1, wherein a sliding block (24) is fixed at the bottom of the internal thread sleeve (23), and a sliding groove for the sliding connection of the sliding block (24) is formed in the base (1).
6. The electric power cabinet with good shock absorption effect according to claim 1, wherein the connecting plate (20) and the bottom of the cabinet body (9) are respectively provided with a pull ring connected with the extension spring (19).
7. The electric power cabinet with good shock absorption effect according to any one of claims 1 to 6, further comprising a heat dissipation unit, wherein the heat dissipation unit comprises a heat dissipation fan (26), a motor, a rotary table (11), a third connecting rod (27) and a nozzle (12), a plurality of installation rods (13) are hinged on the inner wall of one side of the cabinet body (9) at equal intervals from top to bottom, the nozzle (12) is detachably installed at one end, away from the inner wall of the cabinet body (9), of the installation rod (13), a hose is connected to the nozzle (12), the other end of the hose is connected with an air outlet of the heat dissipation fan (26) installed outside the cabinet body (9), a dust cover is installed outside the heat dissipation fan (26), the installation rods (13) are connected through connecting rods (14), the connecting rods (14) are hinged to the installation rods (13), the top end of the connecting rods (14) is hinged to one end of the third connecting rod, the other end of the third connecting rod (27) is eccentrically and hingedly arranged on the rotary table (11), and the rotary table (11) is fixedly arranged on an output shaft of the motor.
8. The electric power cabinet with good shock absorption effect according to claim 7, wherein an exhaust fan (7) is installed on the side wall of the cabinet body (9) far away from the nozzle (12).
CN202011262284.3A 2020-11-12 2020-11-12 Effectual electric power cabinet of shock attenuation Withdrawn CN112382960A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011262284.3A CN112382960A (en) 2020-11-12 2020-11-12 Effectual electric power cabinet of shock attenuation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011262284.3A CN112382960A (en) 2020-11-12 2020-11-12 Effectual electric power cabinet of shock attenuation

Publications (1)

Publication Number Publication Date
CN112382960A true CN112382960A (en) 2021-02-19

Family

ID=74583276

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011262284.3A Withdrawn CN112382960A (en) 2020-11-12 2020-11-12 Effectual electric power cabinet of shock attenuation

Country Status (1)

Country Link
CN (1) CN112382960A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113937634A (en) * 2021-10-25 2022-01-14 威尔朗电气有限公司 Inflatable looped netowrk cabinet
CN114069435A (en) * 2021-10-25 2022-02-18 国网浙江余姚市供电有限公司 Electric power cabinet with dust removal heat dissipation function

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113937634A (en) * 2021-10-25 2022-01-14 威尔朗电气有限公司 Inflatable looped netowrk cabinet
CN114069435A (en) * 2021-10-25 2022-02-18 国网浙江余姚市供电有限公司 Electric power cabinet with dust removal heat dissipation function
CN113937634B (en) * 2021-10-25 2023-08-18 威尔朗电气有限公司 Inflatable ring main unit

Similar Documents

Publication Publication Date Title
CN208272448U (en) A kind of power distribution cabinet of power scheduling
CN112382960A (en) Effectual electric power cabinet of shock attenuation
CN205908688U (en) Architectural equipment sound insulation damping device
CN207896506U (en) A kind of good power distribution cabinet of heat dissipation
CN206786894U (en) The air-conditioner outdoor unit of the shockproof fall arrest of lightning protection
CN116798743B (en) Elevator control transformer with good protection performance and use method thereof
CN211474377U (en) Air compressor with good heat dissipation performance
CN218335726U (en) High-voltage inverter convenient to dismouting maintenance
CN115275808A (en) Switch board shock attenuation heat radiation structure and switch board thereof
CN206269469U (en) A kind of freezer compressor installing plate
CN212149030U (en) Hood component of rice transplanter for transplanting rice seedlings
CN114317929A (en) Hoisting appliance for roller quenching machine tool
CN212544274U (en) Internet of things engineering monitoring box
CN210430681U (en) Buried transformer substation with efficient heat dissipation function
CN212278024U (en) Heat radiator of vertical hydraulic generator
CN219081795U (en) Air-cooled oilless efficient vacuum pump
CN209373517U (en) Blade type cooling cabinet
CN217900167U (en) Refrigeration air conditioning equipment dust cover
CN213424771U (en) Protection device based on transformer
CN212643928U (en) Base with cooling structure for biogas generator set
CN218379684U (en) Be used for intelligent semiconductor dehumidifier bottom heat sink
CN211120349U (en) Low-temperature heat pump drying unit
CN220123243U (en) Dustproof effectual frequency conversion start-up cabinet
CN213392393U (en) Base for high-voltage generator set
CN220062194U (en) Integral water-cooled screw water chiller

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
WW01 Invention patent application withdrawn after publication

Application publication date: 20210219

WW01 Invention patent application withdrawn after publication