A compact and convenient transformer core short-circuit impact test power supply equipment

Abstract

The present invention discloses a compact and convenient transformer cell anti-short circuit impact test power supply device, which mainly includes a folding angle seat, an outer frame, a heat dissipation module, a transformer, a frequency converter and an adjustable heat absorption frame. A connecting plate symmetrically arranged front and rear is fixedly installed on the top of the folding angle seat, a support plate is fixedly installed between two connecting plates, an outer frame is fixedly installed on the top of the folding angle seat, and a symmetrically arranged lifting frame is installed on the top of the support plate above the outer frame through bolt crimping. The present invention is rationally designed in structure, small in size and compact in structure, easy to carry, and has flexible wiring and flexible assembly in main parts, good in stability, and the main heating parts of the equipment are targeted for heat dissipation, and the whole is jointly heat-dissipated to ensure internal temperature safety, flexible in internal component structure, strong in applicability in early production, and quick in later maintenance.

Description

Technical Field

[0001] The invention relates to a short-circuit impact test power supply device, in particular to a compact and convenient transformer core anti-short-circuit impact test power supply device. Background Art

[0002] As the scale and equipment capacity of my country's distribution network increase year by year, the short-circuit current level of the distribution network also increases. As a key equipment of the distribution network, the short-circuit resistance of the distribution transformer has received more and more attention. In recent years, the burning of distribution transformers and power outages caused by short-circuit current shocks have occurred frequently, with serious impacts. The increase in the short-circuit current level of the distribution network has put forward more stringent requirements on the short-circuit resistance of the distribution transformers operating in the system. The short-circuit resistance of the distribution transformer has become another important equipment performance parameter after operating loss and noise, and 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 the distribution transformer is of great significance to the safe and stable operation of the distribution network.

[0003] At present, there are distribution transformers that use copper-clad aluminum wire instead of pure copper wire windings entering the distribution network. The product quality of distribution transformers varies greatly, especially the short-circuit resistance of distribution transformers has become a blind spot in the field of distribution transformer manufacturing and is not taken seriously, resulting in great hidden dangers to the safe and stable operation of distribution transformers.

[0004] The existing detection equipment has an unreasonable structure, is large in size, and is inconvenient to carry. The equipment is powered by a variable frequency boost circuit, and the transformer module of the equipment generates severe heat. The direct opening heat dissipation method is used, and the internal control circuit board cannot be protected, and the heat dissipation effect is poor. There are many precision components inside, and most of the connection positions are welded and assembled, which makes the equipment's anti-collision ability insufficient and easily short-circuited by external impact at the internal power connection position. Summary of the invention

[0005] The purpose of the present invention is to provide a compact and convenient transformer core short-circuit impact test power supply device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A compact and convenient transformer cell anti-short-circuit impact test power supply device, mainly comprising a folding angle seat, an outer frame, a heat dissipation module, a transformer, a frequency converter and a heat absorption frame, the top of the folding angle seat is fixedly installed with a connecting plate symmetrically arranged front and back, a support plate is fixedly installed between the two connecting plates, the top of the folding angle seat is fixedly installed with the outer frame, the top of the support plate is located above the outer frame and is symmetrically installed with a lifting bracket crimped by bolts, a lifting rod is fixedly installed between two adjacent lifting brackets, a display screen is fixedly installed through the upper part of the left side wall of the folding angle seat, an adjusting knob is fixedly installed through the middle part of the left side of the folding angle seat, a socket is fixedly installed through the lower left side of the folding angle seat, a symmetrical base is fixedly installed on the inner wall of the left bottom end of the folding angle seat, a lower rotating frame is screwed on the middle part of the top of the base, a middle connecting sleeve is screwed on the top of the lower rotating frame, an upper rotating frame is screwed on the top of the middle connecting sleeve, and a wear-resistant sleeve is fixedly installed on the outside of the middle connecting sleeve , an assembly sleeve 2 is installed on the outer side of the middle sleeve, a spring is fixedly installed between the upper and lower side walls of the assembly sleeve 2 and the lower rotating frame and the upper rotating frame, a control mainboard is fixedly installed between the assembly sleeve 2, a wire row is installed on the left end of the control mainboard, and the control mainboard is electrically connected with the adjusting knob, the socket and the display screen through the wire row, a protective cover is fixedly installed inside the left side of the angle seat, a heat absorbing plate is fixedly installed on the right inner wall of the protective cover, and equidistantly arranged ribs are fixedly installed on the side wall of the heat absorbing plate, a transformer is fixedly installed on the right part of the bottom end of the angle seat, a special-shaped plate is fixedly installed on the top of the transformer, and a heat absorbing frame is fixedly adhered and installed on the top of the special-shaped plate, an assembly bracket is fixedly installed on the middle part of the bottom end of the angle seat, and an inverter is fixedly installed on the top of the assembly bracket, a heat dissipation sleeve is installed on the outer side of the inverter, and a heat dissipation thin ring is arranged on the outer side of the heat dissipation sleeve, and 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 conducted with the heat absorption frame through a pipeline.

[0008] As a further solution of the present invention: the heat absorption frame mainly includes side panels, a heat dissipation frame, a heat conductive plate, a heat conductive sleeve and an assembly set; a front-to-back through-hole is provided in the middle of the heat dissipation frame, a front-to-back symmetrical heat conductive plate is inserted and installed in the assembly set, the front and rear side walls of the heat dissipation frame are embedded and fixedly installed with an assembly set matching the heat conductive plate, a compression bolt is screwed and installed at the middle of the top of the assembly set, a heat conductive sleeve is fixedly installed at the end of the heat conductive plate, a side panel is fixedly installed on the outer wall of the heat conductive sleeve, and a protrusion matching the shape of the transformer is provided on the side of the side panel close to the transformer.

[0009] As a further solution of the present invention: the heat dissipation module mainly includes a water tank, a water pump, an air outlet, an air inlet and a fan plate, the air inlet is fixedly installed through the left front part of the fan plate, the air outlet is embedded and fixedly installed on the right front part of the fan plate, the water tank is fixedly installed on the right front part of the fan plate in front of the air outlet, the water pump is fixedly installed on the right front part of the fan plate in front of the water tank, the left end opening of the water pump is connected to the upper right end opening of the water tank through a pipe, the lower left end opening of the water tank is connected to the left end opening of the heat dissipation frame through a pipe, and the right end opening of the water pump is connected to the right end opening of the heat dissipation frame through a pipe.

[0010] As a further solution of the present invention: a vent is provided on the rear side wall of the outer frame.

[0011] As a further solution of the present invention: a wire passing sleeve is fixedly installed through the right end of the protective cover.

[0012] As a further solution of the present invention: a rubber pad is fixedly installed on the outer wall of the bottom end of the angle seat.

[0013] As a further solution of the present invention: the control main board is electrically connected to the water pump, transformer, inverter, air outlet fan and air inlet fan through a wiring harness, and the control main board is electrically connected to external equipment and a power supply through a socket.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention has a reasonable structural design, a small size and a compact structure, is easy to carry, and has flexible wiring and flexible assembly at main parts, good stability, and can dissipate heat at main heating parts of the equipment, thereby dissipating heat as a whole to ensure internal temperature safety. The internal component structure is flexible, the applicability is strong in early production, and the later maintenance is quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a compact and convenient transformer cell short-circuit impact test power supply device.

[0017] Figure 2 This is a schematic diagram of the internal structure of the compact and convenient transformer cell anti-short circuit impact test power supply equipment.

[0018] Figure 3 A top view diagram of the heat sink frame, heat conducting plate and side plate in a compact and convenient transformer core short-circuit impact test power supply device.

[0019] Figure 4 This is a schematic diagram of the structure between the transformer, side plate, heat sink frame and special-shaped plate in a compact and convenient transformer core short-circuit impact test power supply equipment.

[0020] Figure 5This is a structural diagram of the fan board, air inlet fan, air outlet fan and water tank in the power supply equipment for the compact and convenient transformer cell anti-short-circuit impact test.

[0021] Figure 6 It is a right view schematic diagram of the angle seat, outer frame, protective cover and lifting frame in the compact and convenient transformer cell anti-short circuit impact test power supply equipment.

[0022] Figure 7 It is a cross-sectional diagram of the control main board, upper rotating frame, lower rotating frame and angle seat in the compact and convenient transformer cell anti-short-circuit impact test power supply equipment.

[0023] 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, heat dissipation frame 12, transformer 13, special-shaped plate 14, heat conduction plate 15, heat conduction sleeve 16, assembly bracket 17, heat dissipation sleeve 18, control main board 19, inverter 20, protective cover 21, heat absorption plate 22, socket 23, rib 24, display screen 25, assembly set 1 26, air outlet fan 27, air inlet fan 28, fan plate 29, assembly set 2 30, upper rotating frame 31, spring 32, middle connecting sleeve 33, base 34, lower rotating frame 35, wear-resistant sleeve 36. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are 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 specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] See also Figures 1 to 7 In an embodiment of the present invention, a compact and convenient transformer cell short-circuit impact test power supply device is provided, which mainly comprises a folding seat 1, an outer frame 6, a heat dissipation module, a transformer 13, an inverter 20 and a heat absorption frame. A connecting plate 8 symmetrically arranged front and rear is fixedly installed on the top of the folding seat 1, a supporting plate 7 is fixedly installed between two connecting plates 8, an outer frame 6 is fixedly installed on the top of the folding seat 1, and a symmetrically arranged lifting frame 3 is installed on the top of the supporting plate 7 located above the outer frame 6 by bolt crimping, and a lifting rod 2 is fixedly installed between two adjacent lifting frames 3, a display screen 25 is fixedly installed through the upper part of the left side wall of the folding seat 1, and an adjusting knob 4 is fixedly installed through the middle part of the left side of the folding seat 1. A socket 23 is fixedly installed through the lower left part of the angle seat 1, and a symmetrically arranged base 34 is fixedly installed on the inner wall of the left bottom end of the angle seat 1. A lower rotating frame 35 is screwed on the middle part of the top of the base 34, and a middle connecting sleeve 33 is screwed on the top of the lower rotating frame 35. An upper rotating frame 31 is screwed on the top of the middle connecting sleeve 33, and a wear-resistant sleeve 36 is fixedly installed on the outside of the middle connecting sleeve 33. An assembly sleeve 2 30 is installed on the outside of the middle connecting sleeve 33, and a spring 32 is fixedly installed between the upper and lower side walls of the assembly sleeve 2 30 and the lower rotating frame 35 and the upper rotating frame 31. A control main board 19 is fixedly installed between the assembly sleeve 2 30, and a wire row is assembled and installed on the left end of the control main board 19. The control main board 19 is connected to the wire row through the wire row It is electrically connected to the adjustment knob 4, the socket 23 and the display screen 25. A protective cover 21 is fixedly installed inside the left side of the angle seat 1, a heat absorbing plate 22 is fixedly installed on the inner wall of the right part of the protective cover 21, and equidistantly arranged ribs 24 are fixedly installed on the side wall of the heat absorbing plate 22. A transformer 13 is fixedly installed on the right part of the bottom end of the angle seat 1, a special-shaped plate 14 is fixedly installed on the top of the transformer 13, and a heat absorbing frame is fixedly adhered and installed on the top of the special-shaped plate 14. An assembly bracket 17 is fixedly installed in the middle of the bottom end of the angle seat 1, and an inverter 20 is fixedly installed on the top of the assembly bracket 17. A heat dissipation sleeve 18 is installed on the outer side of the inverter 20, and a heat dissipation thin ring is arranged on the outer side of the heat dissipation sleeve 18. The inner wall of the rear side of the outer frame 6 is fixed A heat dissipation module is fixedly installed, and the heat dissipation module is connected to the heat absorption frame through a pipeline; the heat absorption frame mainly includes a side plate 10, a heat dissipation frame 12, a heat conducting plate 15, a heat conducting sleeve 16 and an assembly sleeve 26, a front and rear through-hole is arranged in the middle of the heat dissipation frame 12, and a front and rear symmetrical heat conducting plate 15 is inserted and installed in the assembly sleeve, and the front and rear side walls of the heat dissipation frame 12 are embedded and fixedly installed with an assembly sleeve 26 that cooperates with the heat conducting plate 15, and a compression bolt is screwed and installed in the middle of the top of the assembly sleeve 26, and the end of the heat conducting plate 15 is fixedly installed with a heat conducting sleeve 16, and the outer wall of the heat conducting sleeve 16 is fixedly installed with a side plate 10, and the side plate 10 close to the transformer 13 is provided with a protrusion matching the shape of the transformer 13.

[0028] The heat dissipation module mainly includes a water tank 9, a water pump 11, an air outlet fan 27, an air inlet fan 28 and a fan plate 29. The air inlet fan 28 is fixedly installed on the left front side of the fan plate 29, and the air outlet fan 27 is embedded and fixedly installed on the right front side of the fan plate 29. The water tank 9 is fixedly installed on the right front side of the fan plate 29 located in front of the air outlet fan 27. The water pump 11 is fixedly installed on the front side of the fan plate 29 located on the right side of the water tank 9. The left end opening of the water pump 11 is connected to the upper right end opening of the water tank 9 through a pipeline, the lower left end opening of the water tank 9 is connected to the left end opening of the heat dissipation frame 12 through a pipeline, and the right end opening of the water pump 11 is connected to the right end opening of the heat dissipation frame 12 through a pipeline.

[0029] A vent is provided on the rear side wall of the outer frame 6 .

[0030] A wire guide sleeve is fixedly installed through the right end of the protective cover 21 .

[0031] A rubber pad 5 is fixedly mounted on the outer wall of the bottom end of the angle seat 1 .

[0032] The control main board 19 is electrically connected to the water pump 11 , the transformer 13 , the frequency converter 20 , the air outlet fan 27 and the air inlet fan 28 through a wiring harness, and the control main board 19 is electrically connected to external devices and a power supply through a socket 23 .

[0033] The working principle of the present invention is:

[0034] The present invention relates to a compact and convenient transformer core short-circuit impact test power supply device. In use, a 380V power supply is supplied to a transformer 13 through a socket 23, and the boosted voltage is rectified to charge a capacitor in a control mainboard 19. The electric energy stored in the capacitor is converted by a single-phase (or three-phase) frequency converter to output an SPWM waveform for use in a distribution transformer circuit. The short-circuit impact test of the transformer can be easily realized. After a data acquisition device is configured, output current and voltage samples can be collected in real time. The collected data can be printed by a printer, which is convenient for archiving and analyzing the test data.

[0035] When working, the special-shaped plate 14 and the side plate 10 are perfectly adapted to the shape of the transformer 13, and the total contact surface area between the heat exchange device and the transformer 13 is increased, so that the heat dissipation of the transformer 13 is faster, and the heat absorption frame is heat-transferred by the liquid heat exchange medium, and the heat is brought to the water tank 9 for heat dissipation, and the two fans form a circulating airflow, with air inlet on the left and air outlet on the right, which has higher heat dissipation efficiency, and can also dissipate heat for the parts with less serious heat, ensuring the safety and stability of the overall operation of the equipment, and the heat dissipation of the mainboard is controlled by the sealed heat dissipation method, with good sealing effect and perfect protection of precision components;

[0036] And the heat absorption frame can be used when adapting to transformers 13 of different sizes in the early stage, which can reduce the number of molds and reduce production costs. In the later stage, the heat absorption frame can be quickly removed and replaced, and the gaps on the outer wall of the transformer 13 can be cleaned, which is more practical. It adopts a portable setting, cooperates with the motherboard assembled by the experience line, and has electrical connections with flexible wire rows and heat-resistant wire harnesses. When impacted, the impact will be offset and no damage will be caused to the connection position.

[0037] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A compact and convenient transformer core short-circuit impact test power supply device, mainly comprising a folding angle seat (1), an outer frame (6), a heat dissipation module, a transformer (13), a frequency converter (20) and a heat absorption frame, characterized in that: A connecting plate (8) symmetrically arranged front and rearward is fixedly installed on the top of the folding seat (1), a supporting plate (7) is fixedly installed between the two connecting plates (8), an outer frame (6) is fixedly installed on the top of the folding seat (1), a symmetrically arranged lifting frame (3) is installed on the top of the supporting plate (7) located above the outer frame (6) by bolt crimping, and a lifting rod (2) is fixedly installed between two adjacent lifting frames (3), a display screen (25) is fixedly installed through the upper part of the left side wall of the folding seat (1), an adjusting knob (4) is fixedly installed through the middle part of the left side of the folding seat (1), a socket (23) is fixedly installed through the lower part of the left side of the folding seat (1), and a symmetrically arranged base (34) is fixedly installed on the inner wall of the left part of the bottom end of the folding seat (1), and the base (34) A lower rotating frame (35) is screwed and installed in the middle of the top, a middle connecting sleeve (33) is screwed and installed at the top of the lower rotating frame (35), an upper rotating frame (31) is screwed and installed at 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), a second assembly sleeve (30) is sleeved and installed on the outer side of the middle connecting sleeve (33), a spring (32) is fixedly installed between the upper and lower side walls of the second assembly sleeve (30) and the lower rotating frame (35) and the upper rotating frame (31), a control main board (19) is fixedly installed between the second assembly sleeve (30), a wire row is assembled and installed at the left end of the control main board (19), the control main board (19) is electrically connected to the adjustment knob (4), the socket (23) and the display screen (25) through the wire row, and the angle seat (1) A protective cover (21) is fixedly installed inside the left side, a heat absorbing plate (22) is fixedly installed on the inner wall of the right part of the protective cover (21), and equidistantly arranged ribs (24) are fixedly installed on the side wall of the heat absorbing plate (22). A transformer (13) is fixedly installed on the right part of the bottom end of the angle seat (1), a special-shaped plate (14) is fixedly installed on the top of the transformer (13), and a heat absorbing frame is fixedly and adhered to the top of the special-shaped plate (14). An assembly bracket (17) is fixedly installed on the middle part of the bottom end of the angle seat (1), and a frequency converter (20) is fixedly installed on the top of the assembly bracket (17). A heat dissipation sleeve (18) is sleeved on the outer side of the frequency converter (20), and a heat dissipation thin ring is arranged on the outer side of the heat dissipation sleeve (18). A heat dissipation module is fixedly installed on the inner wall of the rear side of the outer frame (6), and the heat dissipation module passes The heat absorbing frame is connected to the heat absorbing frame through a pipeline; the heat absorbing frame mainly comprises a side plate (10), a heat dissipation frame (12), a heat conducting plate (15), a heat conducting sleeve (16) and an assembly sleeve (26); a front-to-back through-hole is provided in the middle of the heat dissipation frame (12); a front-to-back symmetrical heat conducting plate (15) is inserted and installed in the assembly sleeve; an assembly sleeve (26) matching with the heat conducting plate (15) is embedded and fixedly installed in the front and rear side walls of the heat dissipation frame (12); a compression bolt is screwed and installed in the middle of the top of the assembly sleeve (26); a heat conducting sleeve (16) is fixedly installed at the end of the heat conducting plate (15); a side plate (10) is fixedly installed on the outer wall of the heat conducting sleeve (16); a protrusion matching the shape of the transformer (13) is provided on the side of the side plate (10) close to the transformer (13).

2. The compact and convenient transformer core short-circuit impact test power supply device according to claim 1 is characterized in that: The heat dissipation module mainly comprises a water tank (9), a water pump (11), an air outlet fan (27), an air inlet fan (28) and a fan plate (29); the air inlet fan (28) is fixedly installed through the left front part of the fan plate (29); the air outlet fan (27) is embedded and fixedly installed in the right front part of the fan plate (29); the water tank (9) is fixedly installed in the right front part of the fan plate (29) located in front of the air outlet fan (27); the water pump (11) is fixedly installed in the front part of the fan plate (29) located in front of the water tank (9); the left end opening of the water pump (11) is connected to the upper right end opening of the water tank (9) through a pipeline; the lower left end opening of the water tank (9) is connected to the left end opening of the heat dissipation frame (12) through a pipeline; the right end opening of the water pump (11) is connected to the right end opening of the heat dissipation frame (12) through a pipeline.

3. The compact and convenient transformer core short-circuit impact test power supply device according to claim 1 is characterized in that: A ventilating opening is provided on the rear side wall of the outer frame (6).

4. The compact and convenient transformer core short-circuit impact test power supply device according to claim 1 is characterized in that: A wire passing sleeve is fixedly installed through the right end of the protective cover (21).

5. The compact and convenient transformer core short-circuit impact test power supply device according to claim 1 is characterized in that: A rubber pad (5) is fixedly mounted on the outer wall of the bottom end of the angled seat (1).

6. The compact and convenient transformer core short-circuit impact test power supply device according to claim 1 is characterized in that: The control main board (19) is electrically connected to the water pump (11), the transformer (13), the frequency converter (20), the air outlet fan (27) and the air inlet fan (28) via a wiring harness, and the control main board (19) is electrically connected to external equipment and a power supply via a socket (23).

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