CN111565547A - Compact and convenient short-circuit impact resistance experiment power supply equipment for transformer core - Google Patents

Abstract

The invention discloses compact and convenient transformer cell short-circuit impact resistance experiment power supply equipment which mainly 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 support plate is fixedly arranged between the two connecting plates, the outer frame is fixedly arranged at the top end of the break angle seat, and lifting frames which are symmetrically arranged are arranged at the top end of the support plate above the outer frame in a compression joint mode through bolts. 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.

Description

A compact and convenient transformer cell anti-short-circuit impact experimental power supply equipment

technical field

The invention relates to a short-circuit impact test power supply device, in particular to a compact and convenient transformer cell anti-short-circuit impact test power supply device.

Background technique

With the increase of the scale and equipment capacity of my country's distribution network year by year, the short-circuit current level of the distribution network has also increased. As a key equipment of the distribution network, the short-circuit resistance of distribution transformers has received more and more attention . In recent years, the burning of distribution transformers and power outages caused by the impact of short-circuit currents have occurred frequently, with serious impacts. The increase in the short-circuit current level of the distribution network has put forward stricter requirements on the short-circuit resistance of the distribution transformers operating in the system. The short-circuit resistance of the distribution transformers has become another important equipment performance parameter after the operation loss and noise. , has been widely valued by the equipment manufacturing industry and operation management departments. The research on the detection technology of the short-circuit resistance of distribution transformers is of great significance for the safe and stable operation of the distribution network.

At present, distribution transformers that use copper-clad aluminum wires instead of pure copper wire windings flow into the distribution network. The product quality of distribution transformers is uneven, especially the short-circuit resistance of distribution transformers has become a blind spot in the field of distribution transformer manufacturing. It has been paid attention to, resulting in a great hidden danger in the safe and stable operation of distribution transformers.

The structure of the existing testing equipment is unreasonable, its size is large, and it is inconvenient to carry. The power supply of the equipment adopts a frequency conversion booster circuit, and the transformer module of the equipment generates serious heat. It is protected, and the heat dissipation effect is poor. There are many internal precision components. It is worried that most of the connection positions are welded and assembled, which makes the equipment's anti-collision ability insufficient, and it is easy to be impacted by external forces and cause a short circuit at the internal power connection position.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a compact and convenient transformer cell anti-short-circuit impact experimental power supply equipment to solve the problems raised in the above background technology.

To achieve the above object, the present invention provides the following technical solutions:

A compact and convenient transformer cell anti-short-circuit impact experimental power supply equipment mainly includes a corner seat, an outer frame, a heat dissipation module, a transformer, a frequency converter and a heat-absorbing frame. A support plate is fixedly installed between the two connecting plates, an outer frame is fixedly installed at the top of the corner seat, and a symmetrically arranged lifting frame is installed at the top of the support plate above the outer frame through bolt crimping. A lifting rod is fixedly installed between the lifting brackets, a display screen is fixedly installed through the upper part of the left side wall of the corner seat, an adjustment knob is fixedly installed through the middle part of the left side of the corner seat, and the lower part of the left side of the corner seat is fixed A socket is installed through it, a symmetrically arranged base is fixedly installed on the inner wall of the left part of the bottom end of the corner seat, a lower rotating frame is screwed to the middle of the top of the base, and a middle connecting sleeve is screwed to the top of the lower rotating frame, and the top of the middle connecting sleeve is screwed. An upper rotating frame is connected and installed, a wear-resistant sleeve is fixedly installed on the outer side of the middle connecting sleeve, an assembly matching is sleeved and installed on the outer side of the middle connecting sleeve, and the upper and lower side walls of the matching sleeve are fixedly installed between the lower rotating frame and the upper rotating frame There is a spring, a control main board is fixedly installed between the sets, the left end of the control main board is assembled and installed with a wire row, the control main board is electrically connected with the adjustment knob, the socket and the display screen through the wire row, and the left side of the corner seat is fixedly installed with a The protective cover, the inner wall of the right part of the protective cover is fixedly installed with a heat absorbing plate, the side wall of the heat absorbing plate is fixedly installed with fins arranged at equal distances, the right part of the bottom end of the folding angle seat is fixedly installed with a transformer, and the top of the transformer is fixedly installed with a special-shaped plate , the top of the special-shaped plate is fixedly attached with an adjustable heat-absorbing frame, the middle of the bottom end of the corner seat is fixedly installed with an assembly bracket, the top of the assembly bracket is fixedly installed with an inverter, the outside of the inverter is sleeved with a heat dissipation sleeve, and the outside of the heat dissipation sleeve is installed There is a heat dissipation thin ring, a heat dissipation module is fixedly installed on the inner wall of the rear side of the outer frame, and the heat dissipation module is connected to the adjustment heat absorption frame through a pipe.

As a further solution of the present invention: the adjusting heat-absorbing frame mainly includes a side plate, a heat-dissipating frame, a heat-conducting plate, a heat-conducting sleeve and an assembly set, the heat-dissipating frame is provided with a front-to-rear through insertion hole, and the insertion hole is inserted into the The front and rear symmetrical heat-conducting plates are connected and installed, the front and rear side walls of the heat-dissipating frame are embedded and fixedly installed with an assembly set matched with the heat-conducting plate, the middle of the top of the assembly is screwed and installed with crimping bolts, and the end of the heat-conducting plate is fixedly installed with The heat-conducting sleeve, the outer wall of the heat-conducting sleeve is fixedly installed with a side plate, and the side plate close to the transformer is provided with a protrusion matching the shape of the transformer.

As a further solution of the present invention: the heat dissipation module mainly includes a water tank, a water pump, an outlet fan, an inlet fan and a fan plate, an inlet fan is fixedly installed through the left part of the front side of the fan plate, and an inlet fan is embedded in the right part of the front side of the fan plate. An outlet fan is fixedly installed, a water tank is fixedly installed on the front right part of the fan plate at the front of the outlet fan, a water pump is fixedly installed on the front side of the fan plate at the right part of the water tank, and the opening at the left end of the water pump is connected to the upper opening of the right end of the water tank through a pipe, The opening at the lower part of the left end of the water tank is communicated with the opening at the left end of the heat dissipation frame through a pipe, and the opening at the right end of the water pump is communicated with the opening at the right end of the heat dissipation frame through a pipe.

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

As a further solution of the present invention, a wire-passing sleeve is fixedly installed through the right end of the protective cover.

As a further solution of the present invention, a rubber pad is fixedly installed on the outer wall of the bottom end of the corner seat.

As a further solution of the present invention, the control main board is electrically connected to the water pump, transformer, frequency converter, outlet fan and air inlet fan through a wiring harness, and the control main board is electrically connected to external equipment and power sources through sockets.

Compared with the prior art, the beneficial effects of the present invention are:

The invention has the advantages of reasonable structure design, small size and compact structure, convenient transportation, and flexible wiring and flexible assembly in the main parts, and good self stability. The temperature is safe, the internal component structure is flexible, the applicability is strong in the early production, and the later maintenance is fast.

Description of drawings

Figure 1 is a schematic diagram of the structure of a compact and convenient transformer cell anti-short-circuit impact test power supply equipment.

Figure 2 is a schematic diagram of the internal structure of the power supply equipment for the compact and convenient transformer cell anti-short-circuit impact test.

Fig. 3 is a schematic top view of the heat dissipation frame, the heat conduction plate and the side plate in the power supply equipment for the compact and convenient transformer cell anti-short-circuit impact experiment.

Figure 4 is a schematic diagram of the structure between the transformer, the side plate, the heat dissipation frame and the special-shaped plate in the power supply equipment for the compact and convenient transformer cell anti-short-circuit impact test.

Figure 5 is a schematic diagram of the structure between the fan board, the inlet fan, the outlet fan and the water tank in the power supply equipment for the compact and convenient transformer cell anti-short-circuit impact test.

Figure 6 is a schematic diagram of the right side view between the corner seat, the outer frame, the protective cover and the lifting frame in the power supply equipment for the compact and convenient transformer cell anti-short-circuit impact test.

FIG. 7 is a schematic cross-sectional view of the control main board, the upper rotating frame, the lower rotating frame and the corner seat in the power supply equipment for the compact and convenient transformer cell anti-short-circuit impact test.

In the figure: Angle seat 1, lifting rod 2, lifting frame 3, adjusting knob 4, rubber pad 5, outer frame 6, support plate 7, connecting plate 8, water tank 9, side plate 10, water pump 11, cooling frame 12, transformer 13. Special-shaped plate 14, heat-conducting plate 15, heat-conducting sleeve 16, assembly bracket 17, heat-dissipating sleeve 18, control board 19, frequency converter 20, protective cover 21, heat-absorbing plate 22, socket 23, fins 24, display screen 25, Assembly set 26, outlet fan 27, intake fan 28, fan plate 29, assembly set 30, upper rotating frame 31, spring 32, middle connecting sleeve 33, base 34, lower rotating frame 35, wear-resistant sleeve 36.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientation or positional relationship indicated by "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that The device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "arranged" should be understood in a broad sense, for example, it may be fixedly connected, arranged, or Removably connected and arranged, or integrally connected and arranged. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Referring to FIGS. 1 to 7 , in the embodiment of the present invention, a compact and convenient transformer cell anti-short-circuit impact experimental power supply device mainly includes a corner seat 1, an outer frame 6, a heat dissipation module, a transformer 13, a frequency converter 20, and an adjustable heat sink. A connecting plate 8 symmetrically arranged front and rear is fixedly installed at the top of the corner seat 1, a support plate 7 is fixedly installed between the two connecting plates 8, and an outer frame 6 is fixedly installed at the top of the corner seat 1. The top end of the support plate 7 is located above the outer frame 6, and a symmetrically arranged lifting frame 3 is installed by bolt crimping, and a lifting rod 2 is fixedly installed between the two adjacent lifting frames 3. A display screen 25 is fixedly installed therethrough, an adjusting knob 4 is fixedly installed through the middle part of the left side of the corner seat 1, a socket 23 is fixedly installed through the lower part of the left side of the corner seat 1, and the inner wall of the bottom left part of the corner seat 1 is fixed. A symmetrically arranged base 34 is installed, a lower rotating frame 35 is screwed to the middle of the top of the base 34, a middle connecting sleeve 33 is screwed to the top of the lower rotating frame 35, and an upper rotating frame 31 is screwed to the top of the middle connecting sleeve 33. A wear-resistant sleeve 36 is fixedly installed on the outer side of the middle connecting sleeve 33, and an assembly matching 30 is sleeved and installed on the outer side of the middle connecting sleeve 33. The spring 32, the control main board 19 is fixedly installed between the assembly sets 30, the left end of the control main board 19 is assembled and installed with a wire row, the control main board 19 is electrically connected with the adjustment knob 4, the socket 23 and the display screen 25 through the wire row, and the folded angle A protective cover 21 is fixedly installed inside the left side of the seat 1, a heat absorbing plate 22 is fixedly installed on the inner wall of the right part of the protective cover 21, and the side walls of the heat absorbing plate 22 are fixedly installed with fins 24 arranged at equal intervals. A transformer 13 is fixedly installed on the right part, a special-shaped plate 14 is fixedly installed on the top of the transformer 13, an adjustment heat-absorbing frame is fixedly attached to the top of the special-shaped plate 14, and an assembly bracket 17 is fixedly installed in the middle of the bottom end of the corner seat 1, and the assembly bracket 17 A frequency converter 20 is fixedly installed at the top, a heat dissipation sleeve 18 is installed on the outside of the frequency inverter 20, a heat dissipation thin ring is disposed outside the heat dissipation sleeve 18, and a heat dissipation module is fixedly installed on the inner wall of the rear side of the outer frame 16. The heat sink is turned on.

The adjusting heat-absorbing frame mainly includes a side plate 10 , a heat-dissipating frame 12 , a heat-conducting plate 15 , a heat-conducting sleeve 16 and an assembly kit 26 . The middle of the heat-dissipating frame 12 is provided with a front-to-rear through insertion hole, and the insertion hole is inserted into the insertion hole. The front and rear symmetrical heat-conducting plates 15 are installed. The front and rear side walls of the heat dissipation frame 12 are embedded and fixedly installed with an assembly pair 26 that cooperates with the heat-conducting plate 15. The middle of the top of the assembly pair 26 is screwed and installed with crimping bolts. The heat-conducting plate 15 A heat-conducting sleeve 16 is fixedly installed at the end, and a side plate 10 is fixedly installed on the outer wall of the heat-conducting sleeve 16 .

The cooling module mainly includes a water tank 9, a water pump 11, an outlet fan 27, an inlet fan 28 and a fan plate 29. An inlet fan 28 is fixedly installed through the left part of the front side of the fan plate 29, and the right part of the front side of the fan plate 29 is installed. An outlet fan 27 is embedded and fixedly installed. The right part of the front side of the fan plate 29 is located at the front of the outlet fan 27 and a water tank 9 is fixedly installed. The front side of the fan plate 29 is located at the right part of the water tank 9. The opening at the left end is connected to the upper opening of the right end of the water tank 9 through a pipeline, the lower opening of the left end of the water tank 9 is connected to the opening of the left end of the heat dissipation frame 12 through a pipeline, and the opening of the right end of the water pump 11 is connected to the opening of the right end of the heat dissipation frame 12 through a pipeline.

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 installed with a wire pass through.

A rubber pad 5 is fixedly installed on the outer wall of the bottom end of the corner seat 1 .

The control main board 19 is electrically connected to the water pump 11 , the transformer 13 , the frequency converter 20 , the outlet fan 27 and the inlet fan 28 through the wiring harness, and the control main board 19 is electrically connected to the external equipment and power supply through the socket 23 .

The working principle of the present invention is:

The invention relates to a compact and convenient transformer cell anti-short-circuit impact experimental power supply equipment. In use, the 380V power supply supplies power to the transformer 13 after passing through the socket 23, and the boosted voltage is rectified to charge the capacitor in the control main board 19 and store it. The electric energy on the capacitor is converted by a single-phase (or three-phase) frequency converter and then outputs the SPWM waveform for the distribution transformer circuit, which can easily realize the short-circuit impact test of the transformer. Voltage sampling, the collected data can be printed by the printer, which is convenient for archival analysis of test data;

During work, the shape of the transformer 13 is perfectly matched by the special-shaped plate 14 and the side plate 10, which increases the total contact surface area between the heat exchange equipment and the transformer 13, and makes the heat dissipation of the transformer 13 faster. Adjust the heat absorbing frame for heat transfer, bring the heat to the water tank 9 for heat dissipation, cooperate with two fans to form a circulating air flow, the air enters the left side and the air exits from the right side, the heat dissipation efficiency is higher, and the parts that are not seriously heated can be connected and connected. Heat dissipation ensures the stable, safe and stable overall operation of the equipment, and controls the heat dissipation of the motherboard part by means of sealing heat dissipation, with good sealing effect and perfect protection of precision components;

In addition, the adjustable heat-absorbing frame can be used when adapting transformers 13 of different sizes in the early stage, reducing the number of molds and reducing production costs. The gap is clean, more practical, and the portable setting is used, with the main board assembled by the experience line, plus the electrical connection between the flexible wire row and the heat-resistant wire harness, when it is impacted, the impact will be offset, and no connection will be caused. damage to the location.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is to be defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the claims. All changes within the meaning and scope of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims (7)

1. A compact and convenient transformer cell anti-short-circuit impact test power supply equipment, which mainly includes a corner seat (1), an outer frame (6), a heat dissipation module, a transformer (13), a frequency converter (20) and a regulating heat absorption frame. It is characterized in that a connecting plate (8) symmetrically arranged front and rear is fixedly installed on the top of the corner seat (1), a support plate (7) is fixedly installed between the two connecting plates (8), and the corner seat (1) is fixedly installed. ) An outer frame (6) is fixedly installed at the top, the top of the support plate (7) is located above the outer frame (6), and a symmetrically arranged lifting frame (3) is installed by bolt crimping, and two adjacent lifting frames are installed. A lifting rod (2) is fixedly installed between (3), a display screen (25) is fixedly installed through the upper part of the left side wall of the corner seat (1), and an adjustment device is fixedly installed through the middle part of the left side of the corner seat (1). A knob (4), a socket (23) is fixedly installed through the lower left side of the corner seat (1), a symmetrically arranged base (34) is fixedly installed on the inner wall of the bottom left part of the corner seat (1), and the base (34) ) A lower swivel frame (35) is installed in the middle of the top end, a middle swivel sleeve (33) is installed on the top of the lower swivel frame (35), and an upper swivel frame (31) is installed at the top of the middle sleeve (33), A wear-resistant sleeve (36) is fixedly installed on the outer side of the middle connecting sleeve (33), and an assembly matching (30) is sleeved and installed on the outer side of the middle connecting sleeve (33). A spring (32) is fixedly installed between (35) and the upper rotating frame (31), and a control main board (19) is fixedly installed between the assembly sets (30). The main board (19) is electrically connected with the adjustment knob (4), the socket (23) and the display screen (25) through a wire row, and a protective cover (21) is fixedly installed inside the left side of the corner seat (1), and the protective cover ( 21) A heat absorbing plate (22) is fixedly installed on the inner wall of the right part, the side walls of the heat absorbing plate (22) are fixedly installed with fins (24) arranged at equal distances, and a bottom right part of the corner seat (1) is fixedly installed with Transformer (13), a special-shaped plate (14) is fixedly installed at the top of the transformer (13), an adjustment heat-absorbing frame is fixedly attached to the top of the special-shaped plate (14), and an assembly bracket is fixedly installed in the middle of the bottom end of the corner seat (1). (17), a frequency converter (20) is fixedly installed on the top of the assembly bracket (17), a heat dissipation sleeve (18) is sleeved and installed on the outside of the frequency converter (20), and a heat dissipation thin ring is disposed on the outside of the heat dissipation sleeve (18). A heat dissipation module is fixedly installed on the inner wall of the rear side of the frame (16), and the heat dissipation module is connected to the adjusting heat absorption frame through a pipeline. 2. The compact and convenient transformer cell anti-short-circuit impact experimental power supply device according to claim 1, characterized in that the adjusting heat-absorbing frame mainly comprises a side plate (10), a heat-dissipating frame (12), and a heat-conducting plate (15) , a heat-conducting sleeve (16), and an assembly kit (26), the middle of the heat-dissipating frame (12) is provided with a front-to-rear through insertion hole, and a front-to-back symmetrical heat-conducting plate (15) is inserted and installed in the insertion hole. The front and rear side walls of the heat dissipation frame (12) are embedded and fixedly installed with an assembly pair (26) matched with the heat conducting plate (15), and a crimping bolt is screwed and installed in the middle of the top of the assembly pair (26). The end of the heat conducting plate (15) A heat-conducting sleeve (16) is fixedly installed on the outer wall of the heat-conducting sleeve (16), and a side plate (10) is fixedly installed on the outer wall of the heat-conducting sleeve (16). 3. The compact and convenient transformer cell anti-short-circuit impact experimental power supply equipment according to claim 1, wherein the heat dissipation module mainly comprises a water tank (9), a water pump (11), an outlet fan (27), an inlet fan ( 28) and a fan plate (29), an inlet fan (28) is fixedly installed through the left part of the front side of the fan plate (29), and an outlet fan (27) is embedded and fixed in the right part of the front side of the fan plate (29). ), the front right part of the fan plate (29) is located in the front part of the outlet fan (27), and a water tank (9) is fixedly installed; 11), the opening of the left end of the water pump (11) is connected to the upper opening of the right end of the water tank (9) through a pipeline, and the lower opening of the left end of the water tank (9) is connected to the opening of the left end of the heat dissipation frame (12) through a pipeline, and the water pump (11) The opening at the right end is communicated with the opening at the right end of the heat dissipation frame (12) through a pipe. 4 . The compact and convenient transformer cell anti-short-circuit impact test power supply device according to claim 1 , characterized in that a vent is provided on the rear side wall of the outer frame ( 6 ). 5 . The compact and convenient transformer cell anti-short-circuit impact test power supply device according to claim 1 , wherein the right end of the protective cover ( 21 ) is fixedly installed with a wire pass through. 6 . 6 . The compact and convenient transformer cell anti-short-circuit impact test power supply device according to claim 1 , wherein a rubber pad ( 5 ) is fixedly installed on the outer wall of the bottom end of the corner seat ( 1 ). 7 . 7. The compact and convenient transformer cell anti-short-circuit impact experimental power supply device according to claim 1, wherein the control main board (19) communicates with the water pump (11), the transformer (13), the frequency converter (20) through the wiring harness , the outlet fan (27) and the inlet fan (28) are electrically connected, and the control main board (19) is electrically connected with the external equipment and the power supply through the socket (23).

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