CN213280428U

CN213280428U - Compact and convenient short-circuit impact resistance experiment power supply equipment for transformer core

Info

Publication number: CN213280428U
Application number: CN202020997133.1U
Authority: CN
Inventors: 滕杰; 张勇; 孙学武; 尹奎龙; 任社宜; 盛志平; 李涛; 任炜; 宋媛媛; 贺志强
Original assignee: State Grid Corp of China SGCC; Extra High Voltage Power Transmission Co; Materials Branch of State Grid Shandong Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; Extra High Voltage Power Transmission Co; Materials Branch of State Grid Shandong Electric Power Co Ltd
Priority date: 2020-06-03
Filing date: 2020-06-03
Publication date: 2021-05-25
Anticipated expiration: 2030-06-03

Abstract

The utility model discloses an anti short circuit impact experiment power supply equipment of compact convenient transformer electricity core mainly includes dog-ear seat, frame, heat dissipation module, transformer, converter and adjusts the heat absorption frame, dog-ear seat top fixed mounting has the even board that the front and back symmetry set up, two fixed mounting has the extension board between even board, dog-ear seat top fixed mounting has the frame, the extension board top is located the frame top and installs the handle that the symmetry set up through the bolt crimping. The utility model discloses structurally reasonable in design, self small compact structure, the transport is convenient, and the main part has flexible wiring and flexible assembly, and self stability is good, and the main position that generates heat of equipment carries out to the heat dissipation, carries out the heat dissipation to the whole, guarantees inside temperature safety, and the inner assembly structure is nimble, and the suitability is strong during production earlier stage, and later stage maintenance is swift.

Description

Compact and convenient short-circuit impact resistance experiment power supply equipment for transformer core

Technical Field

The invention relates to a short circuit impact experiment power supply device, in particular to a compact and convenient transformer electric core short circuit impact resistance experiment power supply device.

Background

With the increasing of the scale and equipment capacity of the power distribution network in China year by year, the short-circuit current level of the power distribution network is increased, and the short-circuit resistance of the power distribution transformer serving as key equipment of the power distribution network is paid more and more attention. In recent years, the influence of frequent burning of distribution transformers and power failure accidents caused by short-circuit current impact is serious. The increase of the short-circuit current level of the distribution network already puts a stricter requirement on the short-circuit resistance of a distribution transformer operating in a system, the short-circuit resistance of the distribution transformer becomes another important equipment performance parameter after operation loss and noise, the general attention of the equipment manufacturing industry and the operation management department is paid, and the research on the short-circuit resistance detection technology of the distribution transformer has great significance on the safe and stable operation of the distribution network.

At present, the condition that a distribution transformer adopting copper-clad aluminum wires to replace pure copper wire windings flows into a distribution network exists, the product quality of the distribution transformer is good and uneven, particularly, the short-circuit resistance of the distribution transformer becomes a blind area in the field of manufacturing of the distribution transformer and is not emphasized, and therefore the potential safety and stability of the distribution transformer are greatly hidden.

The existing detection equipment is unreasonable in structure, large in size and inconvenient to carry, a variable-frequency booster circuit is adopted for power supply of the equipment, a transformation module of the equipment generates heat seriously, a direct-opening heat dissipation mode is adopted, an internal control circuit board cannot be protected, the heat dissipation effect is poor, multiple internal precise elements are arranged, the worry that the connection positions are welded and assembled is caused, the anti-collision capacity of the equipment is insufficient, and the internal electric connection position is easy to cause short circuit due to external force impact.

Disclosure of Invention

The invention aims to provide compact and convenient power supply equipment for a short-circuit impact resistance experiment of a transformer core, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a compact and convenient transformer electric core short circuit impact resistance experiment power supply device comprises a break angle seat, an outer frame, a heat dissipation module, a transformer, a frequency converter and an adjusting heat absorption frame, wherein connecting plates which are symmetrically arranged in the front and back are fixedly arranged at the top end of the break angle seat, a supporting plate is fixedly arranged between the two connecting plates, the outer frame is fixedly arranged at the top end of the break angle seat, lifting frames which are symmetrically arranged are arranged at the top end of the supporting plate and positioned above the outer frame through bolt compression joint, lifting rods are fixedly arranged between the two adjacent lifting frames, a display screen is fixedly arranged on the upper portion of the left side wall of the break angle seat in a penetrating mode, an adjusting knob is fixedly arranged on the middle portion of the left side of the break angle seat in a penetrating mode, a socket is fixedly arranged on the lower portion of the left side of the break angle seat in a penetrating mode, a base which is symmetrically arranged is fixedly arranged on, the top end of the middle connecting sleeve is screwed and provided with an upper rotating frame, the outer side of the middle connecting sleeve is fixedly provided with a wear-resistant sleeve, the outer side of the middle connecting sleeve is sleeved and provided with a second assembling set, a spring is fixedly arranged between the upper side wall and the lower side wall of the second assembling set and the lower rotating frame as well as the upper rotating frame, a control main board is fixedly arranged between the second assembling sets, the left end of the control main board is assembled and provided with a wire row, the control main board is electrically connected with an adjusting knob, a socket and a display screen through the wire row, a protective cover is fixedly arranged inside the left side of the bevel seat, a heat absorbing plate is fixedly arranged on the inner wall of the right part of the protective cover, fins which are arranged at equal intervals are fixedly arranged on the side wall of the heat absorbing plate, a transformer is fixedly arranged on the right part of the bottom end of the bevel seat, a special-shaped, the converter outside cover is established and is installed the heat dissipation cover, and the heat dissipation cover outside is provided with the thin ring of heat dissipation, frame rear side inner wall fixed mounting has heat dissipation module, and heat dissipation module switches on through pipeline and regulation heat absorption frame.

As a further scheme of the invention: the adjustable heat absorption frame mainly comprises a side plate, a heat dissipation frame, a heat conduction plate, a heat conduction sleeve and a first assembly cover, wherein the middle of the heat dissipation frame is provided with a through insertion hole, the heat conduction plate is inserted and installed symmetrically around the insertion hole, the side wall of the heat dissipation frame is embedded with the first assembly cover matched with the heat conduction plate, the middle of the top end of the first assembly cover is screwed with a compression joint bolt, the end part of the heat conduction plate is fixedly provided with the heat conduction sleeve, the outer wall of the heat conduction sleeve is fixedly provided with the side plate, and the side plate is close to one side of a transformer and is provided with a protrusion.

As a still further scheme of the invention: the heat dissipation module mainly includes water tank, water pump, air-out machine, air inlet machine and fan board, fan board front side left part runs through fixed mounting and has the air inlet machine, fan board front side right part inlays and establishes fixed mounting and has an air-out machine, fan board front side right part is located the anterior fixed mounting of air-out machine and has the water tank, fan board front side is located water tank right part fixed mounting and has the water pump, and water pump left end opening switches on through pipeline and water tank right-hand member upper portion opening, water tank left end lower part opening switches on through pipeline and heat dissipation frame left end opening, water pump right-hand member opening switches on through pipeline and heat dissipation frame right-hand member opening.

As a still further scheme of the invention: the rear side wall of the outer frame is provided with a ventilation opening.

As a still further scheme of the invention: the right end of the protective cover is fixedly provided with a wire passing sleeve in a penetrating way.

As a still further scheme of the invention: the outer wall of the bottom end of the bevel seat is fixedly provided with a rubber cushion.

As a still further scheme of the invention: the control mainboard passes through pencil and water pump, transformer, converter, air-out machine and air inlet machine electric connection, the control mainboard passes through socket and external equipment and power electric connection.

Compared with the prior art, the invention has the beneficial effects that:

the invention has reasonable structural design, small self volume, compact structure, convenient carrying, flexible wiring and flexible assembly at the main part, good self stability, heat dissipation of the main heating part of the equipment, heat dissipation of the whole body, safe internal temperature guarantee, flexible internal component structure, strong applicability in early production and quick later maintenance.

Drawings

Fig. 1 is a schematic structural diagram of a compact and convenient power supply device for a short-circuit impact resistance experiment of a transformer core.

Fig. 2 is a schematic structural diagram of the inside of the compact and convenient transformer electric core short-circuit impact resistance experiment power supply equipment.

Fig. 3 is a schematic plan view of the compact and convenient transformer core short-circuit impact resistance experiment power supply equipment, wherein the space among the heat dissipation frame, the heat conduction plate and the side plate is schematically viewed from above.

Fig. 4 is a schematic structural diagram of a transformer, a side plate, a heat dissipation frame and a special-shaped plate in the compact and convenient transformer electric core short-circuit impact resistance experiment power supply equipment.

Fig. 5 is a schematic structural diagram of a fan plate, an air inlet fan, an air outlet fan and a water tank in the compact and convenient transformer cell short-circuit impact resistance experiment power supply equipment.

Fig. 6 is a schematic right-view diagram of the corner seat, the outer frame, the protective cover and the lifting frame in the compact and convenient transformer electric core short-circuit impact resistance experiment power supply equipment.

Fig. 7 is a schematic cross-sectional view of the control mainboard, the upper rotating frame, the lower rotating frame and the bevel seat in the compact and convenient transformer electric core short-circuit impact resistance experiment power supply equipment.

In the figure: the device comprises a bevel seat 1, a lifting rod 2, a lifting frame 3, an adjusting knob 4, a rubber cushion 5, an outer frame 6, a support plate 7, a connecting plate 8, a water tank 9, a side plate 10, a water pump 11, a heat dissipation frame 12, a transformer 13, a special-shaped plate 14, a heat conduction plate 15, a heat conduction sleeve 16, an assembly support 17, a heat dissipation sleeve 18, a control main board 19, a frequency converter 20, a protective cover 21, a heat absorption plate 22, a socket 23, fins 24, a display screen 25, a first assembly support 26, an air outlet machine 27, an air inlet machine 28, a fan plate 29, a second assembly support 30, an upper rotating frame 31, a spring 32, a middle connecting sleeve 33, a base 34, a lower rotating frame 35 and a wear-resistant sleeve.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can, for example, be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 7, in the embodiment of the invention, a compact and convenient power supply device for a short-circuit impact resistance experiment of a transformer core comprises a bevel seat 1, an outer frame 6, a heat dissipation module, a transformer 13, a frequency converter 20 and an adjusting and heat absorbing frame, wherein connecting plates 8 symmetrically arranged in a front-back manner are fixedly installed at the top end of the bevel seat 1, a support plate 7 is fixedly installed between the two connecting plates 8, the outer frame 6 is fixedly installed at the top end of the bevel seat 1, symmetrically arranged lifting frames 3 are installed at the top end of the support plate 7 above the outer frame 6 through bolt compression joint, a lifting rod 2 is fixedly installed between the two adjacent lifting frames 3, a display screen 25 is fixedly installed at the upper part of the left side wall of the bevel seat 1 in a penetrating manner, an adjusting knob 4 is fixedly installed at the middle part of the left side of the bevel seat 1 in a penetrating manner, a socket 23 is fixedly installed at the lower part of the left side, the middle of the top end of the base 34 is screwed with a lower rotary frame 35, the top end of the lower rotary frame 35 is screwed with a middle connecting sleeve 33, the top end of the middle connecting sleeve 33 is screwed with an upper rotary frame 31, the outer side of the middle connecting sleeve 33 is fixedly provided with a wear-resistant sleeve 36, the outer side of the middle connecting sleeve 33 is sleeved with a second assembling sleeve 30, the upper and lower side walls of the second assembling sleeve 30 are fixedly provided with a spring 32 with the lower rotary frame 35 and the upper rotary frame 31, a control main board 19 is fixedly arranged between the second assembling sleeve 30, the left end of the control main board 19 is assembled with a wire row, the control main board 19 is electrically connected with an adjusting knob 4, a socket 23 and a display screen 25 through the wire row, the inside of the left side of the bevel base 1 is fixedly provided with a protective cover 21, the inner wall of the right part of the protective cover 21 is fixedly provided with a heat absorbing plate 22, the side wall of the, 13 top fixed mounting of transformer has

dysmorphism board

14, and 14 top fixed adhesion of dysmorphism board installs and adjusts the heat absorption frame, 1 bottom middle part fixed mounting of dog-ear seat has assembly support 17, and assembly support 17 top fixed mounting has converter 20, and the cover is established in the 20 outside of converter is installed heat dissipation cover 18, and the heat dissipation cover 18 outside is provided with the thin ring of heat dissipation, 6 rear side inner wall fixed mounting of frame has heat dissipation module, and heat dissipation module switches on with adjusting the heat absorption frame through the pipeline.

Adjust heat absorption frame and mainly include curb plate 10, heat dissipation frame 12, heat-conducting plate 15, heat conduction cover 16 and the first supporting 26 of adorning, the spliced eye that link up around heat dissipation frame 12 middle part is provided with, symmetrical heat-conducting plate 15 around the spliced eye grafting was installed, lateral wall inlays around heat dissipation frame 12 and establishes fixed mounting and has the first supporting 26 of adorning with heat-conducting plate 15 complex, and the first supporting 26 top middle part of adorning connects soon installs the crimping bolt, heat-conducting plate 15 tip fixed mounting has

heat conduction cover

16, and 16 outer wall fixed mounting of heat conduction cover has curb plate 10, and curb plate 10 is close to transformer 13 one side and is provided with the arch of matcing with the appearance of transformer 13.

The heat dissipation module mainly includes water tank 9, water pump 11, play fan 27, air inlet machine 28 and

fan board

29, 29 front side left parts of fan board run through fixed mounting and have

air inlet machine

28, 29 front side right parts of fan board inlay and establish fixed mounting and have air outlet machine 27, 29 front side right parts of fan board are located the anterior fixed mounting of air outlet machine 27 and have

water tank

9, 29 front sides of fan board are located 9 right parts of water tank fixed mounting and have

water pump

11, and 11 left end openings of water pump switch on through pipeline and 9 right-hand member upper portion openings of water tank, 9 left end lower part openings of water tank switch on through pipeline and 12 left end openings of heat dissipation frame, 11 right-hand member openings of water pump switch on through pipeline and 12 right-hand member openings of heat dissipation frame.

The rear side wall of the outer frame 6 is provided with a ventilation opening.

The right end of the protective cover 21 is fixedly provided with a wire passing sleeve in a penetrating way.

The outer wall of the bottom end of the angle folding seat 1 is fixedly provided with a rubber cushion 5.

The control mainboard 19 is electrically connected with the water pump 11, the transformer 13, the frequency converter 20, the air outlet machine 27 and the air inlet machine 28 through a wire harness, and the control mainboard 19 is electrically connected with external equipment and a power supply through the socket 23.

The working principle of the invention is as follows:

the invention relates to a compact and convenient transformer electric core short-circuit impact resistance experiment power supply device, in use, a 380V power supply supplies power to a transformer 13 after passing through a socket 23, the boosted voltage is rectified and then charges a capacitor in a control mainboard 19, the electric energy stored on the capacitor is converted by a single-phase (or three-phase) frequency converter and then outputs SPWM waveform for a distribution transformer circuit, the short-circuit impact test of the transformer can be conveniently realized, after a data acquisition device is configured, the output current and the voltage sampling can be acquired in real time, the acquired data can be printed by a printer, and the test data can be conveniently filed and analyzed;

when the heat dissipation device works, the appearance of the transformer 13 is perfectly matched through the special-shaped plate 14 and the side plate 10, the total contact surface area of the heat exchange device and the transformer 13 is increased, the heat dissipation of the transformer 13 is faster, the heat is carried to the adjusting heat absorption frame through a liquid heat exchange medium, the heat is brought to the water tank 9 for heat dissipation, two fans are matched to form circulating air flow, air enters from the left side and exits from the right side, the heat dissipation efficiency is higher, the parts which do not generate heat seriously can be subjected to heat dissipation in a connected mode, the safety and stability of the whole operation stability of the device are ensured, the heat dissipation of the main board part is controlled through a sealed heat dissipation mode, the sealing effect is good, and the protection of precise;

and adopt and adjust the heat absorption frame, during the transformer 13 of the different sizes of adaptation of earlier stage, can be suitable for, reduce mould quantity, reduction in production cost, in the later stage, can be swift adjust the heat absorption frame and demolish and change, and carry out the gap cleanness of transformer 13 outer wall, it is more practical, and adopt portable setting, the mainboard of assembly is experienced in the cooperation, including the electric connection of flexible line row and heat-resisting pencil, when receiving the impact, can strike and offset, can not cause hookup location's damage.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The compact and convenient short-circuit impact resistance experiment power supply equipment for the transformer cell comprises a break angle seat (1), an outer frame (6), a heat dissipation module, a transformer (13), a frequency converter (20) and an adjusting heat absorption frame, and is characterized in that connecting plates (8) which are symmetrically arranged are fixedly arranged at the top end of the break angle seat (1) front and back, supporting plates (7) are fixedly arranged between the connecting plates (8), the outer frame (6) is fixedly arranged at the top end of the break angle seat (1), lifting frames (3) which are symmetrically arranged are arranged on the top end of the supporting plates (7) above the outer frame (6) through bolt compression joint, lifting rods (2) are fixedly arranged between every two adjacent lifting frames (3), a display screen (25) is fixedly arranged on the upper portion of the left side wall of the break angle seat (1) in a penetrating manner, and an adjusting knob (4) is fixedly arranged in the middle of, dog-ear seat (1) left side lower part is fixed to run through and is installed socket (23), dog-ear seat (1) bottom left part inner wall fixed mounting has base (34) that the symmetry set up, connects soon and installs down spiral frame (35) in base (34) top middle part, connects soon down and installs well adapter sleeve (33) in frame (35) top, and well adapter sleeve (33) top connects soon and installs last spiral frame (31), well adapter sleeve (33) outside fixed mounting has wear-resisting cover (36), well adapter sleeve (33) outside cover is established and is installed the supporting (30) of second equipment, and fixed mounting has spring (32) between the supporting (30) of second equipment about lateral wall and spiral frame (35) down and last spiral frame (31), and fixed mounting has control mainboard (19) between the supporting (30) of second equipment, and control mainboard (19) left end erection joint has the line to be arranged, control mainboard (19) are arranged through the line and adjust knob (4) and are arranged, The socket (23) is electrically connected with the display screen (25), the protective cover (21) is fixedly arranged inside the left side of the bevel seat (1), the heat absorbing plate (22) is fixedly arranged on the inner wall of the right part of the protective cover (21), fins (24) which are arranged at equal intervals are fixedly arranged on the side wall of the heat absorbing plate (22), a transformer (13) is fixedly arranged at the right part of the bottom end of the bevel seat (1), a special-shaped plate (14) is fixedly arranged at the top end of the transformer (13), an adjusting heat absorption frame is fixedly adhered and arranged at the top end of the special-shaped plate (14), an assembly bracket (17) is fixedly arranged in the middle of the bottom end of the bevel seat (1), a frequency converter (20) is fixedly arranged at the top end of the assembly bracket (17), a heat dissipation sleeve (18) is sleeved outside the frequency converter (20), a heat dissipation thin ring is arranged outside the heat dissipation sleeve (18), and a heat dissipation module is fixedly mounted on the inner wall of the rear side of the outer frame (6), and the heat dissipation module is communicated with the adjusting heat absorption frame through a pipeline.

2. The compact portable transformer cell short-circuit impact resistance experiment power supply apparatus of claim 1, it is characterized in that the adjusting heat absorption frame comprises a side plate (10), a heat dissipation frame (12), a heat conduction plate (15), a heat conduction sleeve (16) and a first assembly sleeve (26), the middle part of the heat dissipation frame (12) is provided with a splicing hole which is through from front to back, the splicing hole is spliced and provided with heat conduction plates (15) which are symmetrical from front to back, the front side wall and the rear side wall of the radiating frame (12) are embedded and fixedly provided with a first assembling sleeve (26) matched with the heat conducting plate (15), the middle part of the top end of the first assembling sleeve (26) is rotatably provided with a compression joint bolt, the end part of the heat conducting plate (15) is fixedly provided with a heat conducting sleeve (16), the outer wall of the heat conducting sleeve (16) is fixedly provided with a side plate (10), and one side of the side plate (10) close to the transformer (13) is provided with a bulge matched with the shape of the transformer (13).

3. The compact portable transformer cell short-circuit impact resistance experiment power supply apparatus of claim 1, it is characterized in that the heat dissipation module comprises a water tank (9), a water pump (11), an air outlet machine (27), an air inlet machine (28) and an air plate (29), the left part of the front side of the fan plate (29) is penetrated with a fixed air inlet fan (28), the right part of the front side of the fan plate (29) is embedded with a fixed air outlet fan (27), the right part of the front side of the fan plate (29) is positioned at the front part of the air outlet machine (27) and is fixedly provided with a water tank (9), the front side of the fan plate (29) is positioned at the right part of the water tank (9) and is fixedly provided with a water pump (11), the left end opening of the water pump (11) is communicated with the upper part opening of the right end of the water tank (9) through a pipeline, the lower opening at the left end of the water tank (9) is communicated with the opening at the left end of the heat dissipation frame (12) through a pipeline, and the right end opening of the water pump (11) is communicated with the right end opening of the heat dissipation frame (12) through a pipeline.

4. The compact and convenient power supply equipment for the short-circuit impact resistance experiment of the transformer electric core as recited in claim 1, wherein a ventilation opening is formed in the rear side wall of the outer frame (6).

5. The compact and convenient power supply equipment for the short-circuit impact resistance experiment of the transformer electric core as claimed in claim 1, wherein the right end of the protective cover (21) is fixedly provided with a wire passing sleeve in a penetrating manner.

6. The compact and convenient power supply equipment for the short-circuit impact resistance experiment of the transformer electric core as recited in claim 1, wherein the rubber mat (5) is fixedly installed on the outer wall of the bottom end of the bevel seat (1).

7. The compact and convenient power supply equipment for the short-circuit impact resistance experiment of the transformer battery core as recited in claim 1, wherein the control mainboard (19) is electrically connected with the water pump (11), the transformer (13), the frequency converter (20), the air outlet machine (27) and the air inlet machine (28) through a wire harness, and the control mainboard (19) is electrically connected with an external device and a power supply through a socket (23).