CN221485541U - Energy-saving photovoltaic inverter test system - Google Patents

Abstract

The utility model discloses an energy-saving photovoltaic inverter testing system which comprises an aging room and heat-generating electrical equipment outside the aging room, wherein a first air outlet and a second air outlet are arranged on the heat-generating electrical equipment, a first fan is arranged in the first air outlet, and a second fan is arranged in the second air outlet; the first air outlet is communicated with an air outlet pipe, the air outlet pipe is communicated with an air inlet of a three-way assembly through a telescopic hose, a two-way air inlet of the three-way assembly is communicated with an ageing room through a two-way pipe, and an air outlet communicated with the outside is further formed in the three-way assembly; and a rotating structure is arranged in the tee joint assembly and is connected with a wind shield matched with the air outlet and the air inlet. According to the utility model, the effect of waste heat recovery is realized through heat transfer, so that the energy consumption required by testing the photovoltaic inverter in an ageing room is saved, the energy-saving concept is met, and the automatic switching control can be realized through special circuit design without a chip.

Description

Energy-saving photovoltaic inverter test system

Technical Field

The utility model relates to the field of machinery, in particular to an energy-saving photovoltaic inverter testing system.

Background

A photovoltaic inverter refers to an inverter that can convert a variable direct current voltage generated by a Photovoltaic (PV) solar panel into a mains frequency Alternating Current (AC). In order to ensure that the photovoltaic inverter can be normally used in a high-temperature environment, after the photovoltaic inverter is produced, the photovoltaic inverter is required to be placed in an aging cabinet, and the service life of the photovoltaic inverter and whether a product is qualified or not are tested by increasing the internal temperature of the aging cabinet.

When the aging test is carried out, the photovoltaic inverter is usually placed in an aging room, the aging test is carried out on the photovoltaic inverter, and in order to improve the accuracy of the aging test of the photovoltaic inverter, the temperature in the aging room is required to be controlled at 45 ℃, so that the aging room has great energy consumption on the premise of ensuring the temperature in the aging room to be 45 ℃, and the cost of the aging test of the photovoltaic inverter is greatly improved.

Many electrical devices have a large amount of heat during use, and in order to prevent the electrical devices from being too high in temperature, heat is usually removed by a fan, so that heat energy is wasted.

Disclosure of utility model

In order to solve the technical problems, the utility model provides an energy-saving photovoltaic inverter testing system.

The aim of the utility model is achieved by the following technical scheme:

The energy-saving photovoltaic inverter testing system comprises an aging room and heat-generating electrical equipment outside the aging room, wherein a first air outlet and a second air outlet are arranged on the heat-generating electrical equipment, a first fan is arranged in the first air outlet, and a second fan is arranged in the second air outlet; the first air outlet is communicated with an air outlet pipe, the air outlet pipe is communicated with an air inlet of a three-way assembly through a telescopic hose, a two-way air inlet of the three-way assembly is communicated with an ageing room through a two-way pipe, and an air outlet communicated with the outside is further formed in the three-way assembly; a rotary structure is arranged in the tee joint assembly, and the rotary structure is connected with a wind shield matched with the air outlet and the air inlet;

a temperature detection structure is arranged in the aging room and comprises an insulating tube body, and mercury is arranged in the insulating tube body; the bottom electrode contacted with mercury is arranged at the bottom of the insulating tube body, the upper electrode extending into the insulating tube body is arranged at the upper part of the insulating tube body, and the upper electrode is sequentially and electrically connected with the rotating structure, the power supply and the bottom electrode to form a loop.

Further improved, the upper electrode is also sequentially and electrically connected with a magnetic induction coil, a power supply and a bottom electrode of the relay, a normally open contact of the relay is sequentially and electrically connected with the second fan and the mains supply to form a loop, and a normally closed contact is sequentially and electrically connected with the first fan and the mains supply to form a loop.

Further improvement, revolution mechanic includes servo motor, and servo motor's pivot is connected with the locating plate, locating plate fixed connection deep bead.

Further improved, the servo motor is fixed in the middle of the tee joint assembly through a fixing frame.

Further improvement, tee bend subassembly includes the base, and the base bottom is fixed with the sliding ring, deep bead and sliding connection of sliding ring, and the base top lid is equipped with the seat.

Further improvement, a rubber pad is arranged between the base and the upper base.

Further improvement, the three-way component is provided with a positioning plate matched with the wind shield; the locating plate and the wind shield are respectively positioned at two sides of the air inlet.

Further improvements, the heat-generating electrical apparatus includes an aging apparatus control cabinet.

The utility model has the beneficial effects that:

1. When the temperature in the ageing room is higher than 45 ℃, the heat in the ageing room can be rapidly discharged, the purpose of reducing the temperature in the ageing room is achieved, and when the temperature in the ageing room is lower than 45 ℃, the heat generated during operation of the ageing equipment control cabinet can be directly transmitted to the ageing room, so that the temperature in the ageing room is increased to 45 ℃ again. The effect of waste heat recovery is achieved through heat transfer, so that energy consumption required by testing the photovoltaic inverter in an ageing room is saved, and the energy-saving concept is met.

2. The utility model combines temperature monitoring and gas flow direction control together and can be completed by means of only one driving device, and has the advantages of low cost, easy operation and easy investigation when problems occur.

3. The utility model controls the first fan and the second fan to be turned off and on according to the needs through the special circuit loop, and a control chip is not needed, so that the cost is low.

Drawings

The utility model is further illustrated by the accompanying drawings, the content of which does not constitute any limitation of the utility model.

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of a driving mechanism;

FIG. 3 is a schematic view of a three-way assembly;

FIG. 4 is a schematic diagram of an electrical connection between a servo motor and a temperature measuring assembly;

FIG. 5 is a schematic diagram of a temperature sensing assembly;

FIG. 6 is a schematic view of the structure of a weather shield extruded flexible hose;

FIG. 7 is a schematic diagram of a first fan and a second fan electrically connected to a temperature sensing assembly.

Wherein, 1, generating heat electrical equipment; 2. a first air outlet; 3. a second air outlet; 4. an air outlet pipe; 5. a flexible hose; 6. a tee assembly; 61. a base; 62. a slip ring; 63. an upper seat; 641. an air inlet; 642. an air outlet; 643. a two-way tuyere; 65. a rubber pad; 66. a baffle; 67. a wind deflector; 68. a positioning plate; 7. a driving mechanism; 71. a fixing frame; 72. a servo motor; 73. a power supply; 74. a temperature measuring assembly; 741. binding posts; 742. a tube body; 743. a temperature measuring head; 744. mercury; 8. a bi-directional tube; 9. a relay; 91. a magnetic induction coil; 92. a normally open contact; 93. a normally closed contact; 10. a first fan; 11. and a second fan.

Detailed Description

The utility model will be further described in detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the utility model more apparent.

Example 1

First of all, according to fig. 3: the air outlet pipe 4 is connected with the first air outlet 2 of the heat-generating electrical equipment 1, then the telescopic hose 5 at the other end of the air outlet pipe 4 is communicated with the base 61 and the upper base 63, and the bidirectional pipe 8 is communicated with the aging room.

According to fig. 5: when the temperature measuring assembly 74 detects that the gas temperature is higher than 45 ℃, mercury in the tube 742 expands upwards due to expansion and contraction, the mercury expands to the position of the binding post 741, and the mercury belongs to a conductive medium, so that the circuit is in a connected state, the servo motor 72 starts to operate, the servo motor 72 drives the fixing plate 67 to drive the baffle plate 66 to rotate along the slip ring 62, and the baffle plate 66 rotates to squeeze the flexible hose 5, and crushes and squeezes the flexible hose 5 on the positioning plate 68 as shown in fig. 6. At this time, the air outlet pipe 4 is in a closed state, and the heat in the aging room is discharged through the bidirectional pipe 8 and finally discharged to the outside from the air outlet 642. Meanwhile, as shown in the circuit in fig. 7, the normally closed contact is opened, and the normally open contact is closed, so that the first fan is closed, and the second fan is started, so that heat of the heat-generating electrical equipment is discharged to the outside.

When the temperature of the ageing room is lower than 45 ℃, the mercury level is lowered, the circuit is disconnected, at the moment, the servo motor 72 loses control over the baffle 66, the telescopic hose 5 can push back the baffle 66 under the auxiliary effect of self elasticity and the exhaust gas of the ageing room, the baffle 66 can block the air outlet 642 at the moment, the magnetic induction coil 91 of the relay adsorbs the armature, thereby the normally closed contact is closed, the normally open contact is opened, the first fan is started, the second fan is closed, heat in the heat-generating electrical equipment 1 can enter from the air outlet pipe 4 and then finally enter the ageing room through the bidirectional pipe 8, heat transfer is realized, and the energy-saving effect is realized by transferring waste heat in the heat-generating electrical equipment 1 to the ageing room for secondary utilization.

As shown in fig. 3, the upper seat 63 and the base 61 are connected by bolts, and a high-temperature-resistant rubber pad 65 is arranged between the upper seat 63 and the base 61, so that the base 61 and the upper seat 63 can be conveniently detached on the premise of not affecting the normal sealing strength, and the upper seat 63 and the base 61 can be quickly detached after long-time use, so that the inside of the air inlet 641, the air outlet 642 and the bidirectional air inlet 643 is cleaned in all directions, and the effect of cleanliness is improved.

Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the scope of the present utility model, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.

Claims (8)

1. The energy-saving photovoltaic inverter testing system comprises an aging room and heat-generating electrical equipment (1) outside the aging room, and is characterized in that a first air outlet (2) and a second air outlet (3) are arranged on the heat-generating electrical equipment (1), a first fan is arranged in the first air outlet (2), and a second fan is arranged in the second air outlet (3); the first air outlet (2) is communicated with an air outlet pipe (4), the air outlet pipe (4) is communicated with an air inlet (641) of a three-way assembly (6) through a telescopic hose (5), a two-way air inlet (643) of the three-way assembly (6) is communicated with an ageing room through a two-way pipe (8), and an air outlet (642) communicated with the outside is further formed in the three-way assembly (6); a rotary structure is arranged in the three-way assembly (6), and the rotary structure is connected with a wind shield (67) matched with the air outlet (642) and the air inlet (641);

A temperature detection structure is arranged in the aging room, the temperature detection structure comprises an insulating pipe body (742), and mercury (744) is arranged in the insulating pipe body (742); the bottom of the insulating tube body (742) is provided with a bottom electrode (743) which is in contact with mercury (744), the upper part of the insulating tube body (742) is provided with an upper electrode (741) which stretches into the insulating tube body (742), and the upper electrode (741) is electrically connected with the rotating structure, the power supply and the bottom electrode (743) in sequence to form a loop.

2. The energy-saving photovoltaic inverter test system according to claim 1, wherein the upper electrode (741) is further electrically connected to a magnetic induction coil (91) of the relay (9), a power supply and a bottom electrode (743) in sequence, a normally open contact (92) of the relay (9) is electrically connected to the second fan (11) and the utility power in sequence to form a loop, and a normally closed contact (93) is electrically connected to the first fan (10) and the utility power in sequence to form a loop.

3. The energy-saving photovoltaic inverter testing system of claim 1, wherein the rotating structure comprises a servo motor (72), a rotating shaft of the servo motor (72) is connected with a positioning plate (68), and the positioning plate (68) is fixedly connected with a wind deflector (67).

4. The energy-saving photovoltaic inverter testing system according to claim 3, wherein the servo motor (72) is fixed in the middle of the three-way assembly (6) through a fixing frame (71).

5. The energy-saving photovoltaic inverter testing system according to claim 1, wherein the tee assembly (6) comprises a base (61), a slip ring (62) is fixed at the bottom of the base (61), a wind shield (67) is slidably connected with the slip ring (62), and an upper seat (63) is covered above the base (61).

6. The energy-saving photovoltaic inverter testing system of claim 5, characterized in that a rubber pad (65) is installed between the base (61) and the upper seat (63).

7. The energy-saving photovoltaic inverter testing system according to claim 1, characterized in that the tee assembly (6) is fitted with a positioning plate (68) cooperating with a wind deflector (67); the locating plate (68) and the wind deflector (67) are respectively positioned at two sides of the air inlet (641).

8. The energy-efficient photovoltaic inverter testing system of claim 1, wherein the heat-generating electrical device (1) comprises an aging device control cabinet.