CN209150989U - A kind of phase-shifting full-bridge HVDC converter - Google Patents

Abstract

The utility model relates to converter technical field, in particular a kind of phase-shifting full-bridge HVDC converter, including bottom plate; bottom plate is equipped with protrusion, and converter is additionally provided on bottom plate, and the periphery of converter is equipped with protective cover; the bottom surface of protrusion is adhesively fixed with bottom plate, and bottom surface and the bottom plate of converter are adhesively fixed；The phase-shifting full-bridge HVDC converter passes through the protective cover being equipped with, the protective cover protects converter when using the converter well, prevent external force from causing to damage to converter, the draw runner and sliding rail being equipped with simultaneously, so that the protective cover is convenient for removing and placing from converter, and the baffle by being equipped with is not easily accessible the water stain of the external world to converter, converter dampness damage can effectively be prevented, it will not have an impact the heat dissipation of converter simultaneously, it solves converter and lacks corresponding protection, converter is easily because external force is impaired, and then the problem of causing converter to be damaged.

Description

A kind of phase-shifting full-bridge HVDC converter

Technical field

The utility model relates to converter technical field, specially a kind of phase-shifting full-bridge HVDC converter.

Background technique

DC converter is that a kind of DC power supply is transformed into another DC power supply with different output characteristics, phase shift Full-bridge HVDC converter refers to the equipment for converting high tension voltage to low voltage electric energy, the existing high straightening of phase-shifting full-bridge When in use, converter is directly exposed to lack corresponding protection outside to current converter, and converter is easily impaired because of external force, and then leads Mutagens parallel operation damage, in consideration of it, it is proposed that a kind of phase-shifting full-bridge HVDC converter.

Utility model content

The purpose of this utility model is to provide a kind of phase-shifting full-bridge HVDC converters, to solve above-mentioned background technique The converter of middle proposition lacks corresponding protection, and converter is easily impaired because of external force, and then the problem of cause converter to be damaged.

To achieve the above object, the utility model provides the following technical solutions:

A kind of phase-shifting full-bridge HVDC converter, including bottom plate, the bottom plate are equipped with protrusion, also set on the bottom plate There is converter, the periphery of the converter is equipped with protective cover, and bottom surface and the bottom plate of the protrusion are adhesively fixed, the transformation The bottom surface of device is adhesively fixed with the bottom plate.

The top surface of the bottom plate is symmetrically arranged with two mounting holes being parallel to each other, each peace at the side edge of front and back Dress is equipped with installation screw in hole.

Strip groove is offered in the protrusion, the bottom surface four corners of the strip groove offer jack.

The two sides of the converter are equipped with fixed plate, and the one side of the fixed plate is adhesively fixed with the converter, The sliding rail being parallel to each other there are two being set in the fixed plate.

The string holes there are four linear equidistantly distributed, a left side for the protective cover are all provided on the front and back sides of the protective cover Cavity is offered on right side, is linearly equidistantly equipped with multiple baffles, the both ends of the baffle and institute in the cavity The two sidewalls for stating cavity are adhesively fixed, and protective cover bottom surface four corners are adhesively fixed with inserting column, the left and right of the protective cover Two draw runners being parallel to each other are symmetrically arranged on inner wall.

Preferably, the baffle tilts 45 ° of settings along the horizontal plane.

Preferably, the inserting column and the jack are mating.

Preferably, the draw runner is slidably connected with the sliding rail.

Preferably, the size shape of the strip groove is adapted with the size shape of the protective cover bottom surface.

Preferably, the binding post of the string holes and the converter is in same level height.

Compared with prior art, the utility model has the beneficial effects that the phase-shifting full-bridge HVDC converter is by being equipped with Protective cover, which protects converter when using the converter well, prevents external force to change Parallel operation causes to damage, while the draw runner and sliding rail being equipped with, so that the protective cover is convenient for removing and placing from converter, and passes through The baffle being equipped with is not easily accessible the water stain of the external world to converter, can effectively prevent converter dampness damage, simultaneously It will not have an impact the heat dissipation of converter, solve converter and lack corresponding protection, and converter is easily impaired because of external force, And then the problem of causing converter to be damaged.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the utility model；

Fig. 2 is the structural schematic diagram of converter in the utility model；

Fig. 3 is one of the structural schematic diagram of protective cover in the utility model；

Fig. 4 is the second structural representation of protective cover in the utility model；

Fig. 5 is phase-shifting full-bridge HVDC converter circuit diagram in the utility model.

In figure: 1, bottom plate；11, mounting hole；12, screw is installed；2, raised；21, strip groove；22, jack；3, converter； 31, fixed plate；311, sliding rail；4, protective cover；41, string holes；42, cavity；421, baffle；43, inserting column；44, draw runner.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise " be based on the orientation or positional relationship shown in the drawings, be only for Convenient for description the utility model and simplify description, rather than the equipment of indication or suggestion meaning or element must have specifically Orientation is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

The meaning of " plurality " is two or more in the description of the present invention, unless otherwise clearly specific It limits.

Embodiment 1

A kind of phase-shifting full-bridge HVDC converter, as shown in Figures 1 to 4, including bottom plate 1, bottom plate 1 are equipped with protrusion 2, Converter 3 is additionally provided on bottom plate 1, the periphery of converter 3 is equipped with protective cover 4, and the bottom surface of protrusion 2 is adhesively fixed with bottom plate 1, converts The bottom surface of device 3 is adhesively fixed with bottom plate 1, and the top surface of bottom plate 1 is symmetrically arranged with two peaces being parallel to each other at the side edge of front and back Hole 11 is filled, installation screw 12 is equipped in each mounting hole 11, offers strip groove 21, the bottom surface four of strip groove 21 in protrusion 2 Jack 22 is offered at angle, the two sides of converter 3 are equipped with fixed plate 31, and the one side of fixed plate 31 is Nian Jie with converter 3 It is fixed, it is set in fixed plate 31 there are two the sliding rail 311 being parallel to each other, is all provided with that there are four linear on the front and back sides of protective cover 4 The string holes 41 of equidistantly distributed offers cavity 42 on the left and right side of protective cover 4, linearly equidistantly sets in cavity 42 There are multiple baffles 421, the both ends of baffle 421 and the two sidewalls of cavity 42 are adhesively fixed, and 4 bottom surface four corners of protective cover are bonded solid Surely there is inserting column 43, two draw runners being parallel to each other 44 are symmetrically arranged on the left and right inner wall of protective cover 4.

Specifically, baffle 421 tilts 45 ° of settings along the horizontal plane, the baffle 421 being inclined to set can effectively avoid water stain etc. The situation for being splashed into inside protective cover 4, and then avoiding circuit impaired.

Specifically, inserting column 43 and jack 22 are mating, mating mode is convenient for protective cover 4 being fixed on strip groove In 21, and convenient for removing and installing.

Specifically, draw runner 44 is slidably connected with sliding rail 311, sliding rail 311 provides the effect of guiding to protective cover 4, is convenient for Protective cover 4 is installed on bottom plate 1.

Further, the size shape of 4 bottom surface of size shape with protective cover of strip groove 21 is adapted, the bottom of protective cover 4 End can preferably cooperate with strip groove 21, and closely cooperation is so that water stain etc. be difficult to penetrate into from junction, and then avoids circuit It is impaired.

In addition to this, the binding post of string holes 41 and converter 3 is in same level height, and string holes 41 is convenient for electric wire and transformation Device 3 is attached.

It is worth noting that being equipped with the rubber ring of waterproof at string holes 41 in the present embodiment, which can be effective Prevent it is water stain it is equal penetrated into from string holes 41 inside protective cover 4, and then it is impaired to avoid circuit.

You need to add is that the circuit of the phase-shifting full-bridge HVDC converter in the present embodiment is as shown in figure 5, transformer No-load voltage ratio is 4:23:23, and primary side leakage inductance is 0.45uH, and using transformer leakage inductance as resonant inductance, loads soft-switching range For 25%-100%, output voltage is ± 365V, output inductor 710uH, capacitor 1.36uF, and capacitance is Its switching frequency of 10uF is 100kHz, and using TMS320F2812 as controller；Converter two output voltage Vo1 and Vo2 warp After sampling and doing averagely compared with reference signal, errors signal is sent to phase shifting control unit after passing through PI controller, generates Phase shifting control pulse signal controls the on-off of primary side MOSFET, thus the output voltage of control circuit.

The phase-shifting full-bridge HVDC converter of the present embodiment is before use, electric wire is passed through string holes first by user of service 41, and electric wire and converter 3 are electrically connected, draw runner 44 is directed at sliding rail 311 and presses down on protective cover by subsequent user of service 4, when pressing down on protective cover 4, draw runner 44 moves downward in the vertical direction along sliding rail 311, while the bottom end of protective cover 4 does not have Enter to strip groove 21, and inserting column 43 is submerged to jack 22 simultaneously, protective cover 4 can be fixed on bottom plate 1 at this time, finally be made The converter 3 can be mounted on corresponding position by mounting hole 11 and installation screw 12 with personnel；

The phase-shifting full-bridge HVDC converter of the present embodiment when in use, when the converter receives external force, protective cover 4 Effectively 3 ontology of converter is avoided to be impacted and damaged；When it is extraneous it is water stain fall on protective cover 4 when, baffle 421 is effective Prevent water stain infiltration；When 3 temperature of converter is high, the gap between baffle 421 effectively makes the heat inside protective cover 4 Air is diffused, and accelerates heat dissipation.

Basic principles, main features, and advantages of the present invention has been shown and described above.Current row The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments Be only the utility model preference, be not intended to limit the utility model, do not departing from the spirit and scope of the utility model Under the premise of, the utility model also has various changes and improvements, these changes and improvements both fall within claimed it is practical In novel range.The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. a kind of phase-shifting full-bridge HVDC converter, including bottom plate (1), it is characterised in that: the bottom plate (1) is equipped with protrusion (2), it is additionally provided with converter (3) on the bottom plate (1), the periphery of the converter (3) is equipped with protective cover (4), the protrusion (2) Bottom surface be adhesively fixed with the bottom plate (1), bottom surface and the bottom plate (1) of the converter (3) are adhesively fixed；

The top surface of the bottom plate (1) is symmetrically arranged with two mounting holes being parallel to each other (11), Mei Gesuo at the side edge of front and back It states and is equipped with installation screw (12) in mounting hole (11)；

It is offered strip groove (21) on the protrusion (2), the bottom surface four corners of the strip groove (21) offer jack (22)；

The two sides of the converter (3) are equipped with fixed plate (31), the one side of the fixed plate (31) and the converter (3) It is adhesively fixed, sets that there are two the sliding rails (311) that are parallel to each other on the fixed plate (31)；

The string holes (41) there are four linear equidistantly distributed, the protective cover are all provided on the front and back sides of the protective cover (4) (4) it is offered on left and right side cavity (42), it is linear in the cavity (42) to be equidistantly equipped with multiple baffles (421), the both ends of the baffle (421) and the two sidewalls of the cavity (42) are adhesively fixed, protective cover (4) the bottom surface quadrangle Place is adhesively fixed with inserting column (43), is symmetrically arranged with two draw runners being parallel to each other on the left and right inner wall of the protective cover (4) (44)。

2. phase-shifting full-bridge HVDC converter according to claim 1, it is characterised in that: the baffle (421) is along water Plane tilts 45 ° of settings.

3. phase-shifting full-bridge HVDC converter according to claim 1, it is characterised in that: the inserting column (43) with it is described Jack (22) is mating.

4. phase-shifting full-bridge HVDC converter according to claim 1, it is characterised in that: the draw runner (44) with it is described Sliding rail (311) is slidably connected.

5. phase-shifting full-bridge HVDC converter according to claim 1, it is characterised in that: the ruler of the strip groove (21) Very little shape is adapted with the size shape of the protective cover (4) bottom surface.

6. phase-shifting full-bridge HVDC converter according to claim 1, it is characterised in that: the string holes (41) with it is described The binding post of converter (3) is in same level height.