CN217608111U

CN217608111U - Explosion-proof inverter

Info

Publication number: CN217608111U
Application number: CN202221256008.0U
Authority: CN
Inventors: 许颇; 梅汉文; 王一鸣
Original assignee: Ginlong Technologies Co Ltd
Current assignee: Ginlong Technologies Co Ltd
Priority date: 2022-05-24
Filing date: 2022-05-24
Publication date: 2022-10-18
Anticipated expiration: 2032-05-24

Abstract

The utility model relates to an electrical equipment technical field particularly, relates to an explosion-proof dc-to-ac converter. The pressure relief device comprises a box body, a cover body and a bearing block, wherein a pressure relief opening is formed in the box body, the lower end of the cover body is hinged with the box body, the upper end of the cover body is detachably connected with the box body, and the cover body is used for sealing the pressure relief opening; the bearing block sets up the upper end at the lid. Set up the great bearing block of a weight to set up the upper end at the lid with the bearing block, and the lower extreme and the box of lid are articulated, under the effect of gravity, can drive the lid fast and use the hinged end to rotate for the axial outside or inboard, thereby open the lid. From this, set up the bearing block on the lid, can effectively, open the lid in time, be favorable to the dc-to-ac converter to carry out the pressure release, further reduce the potential safety hazard.

Description

Explosion-proof inverter

Technical Field

The utility model relates to an electrical equipment technical field particularly, relates to an explosion-proof dc-to-ac converter.

Background

In the use process of the inverter, in order to protect electronic devices in the inverter, a shell with higher protection level is used for sealing the electronic devices so as to prevent dust, rainwater and the like from damaging the electronic devices in the inverter.

However, when the inverter is used excessively, the inverter may generate gas when abnormality such as liquid ejection due to electrolytic capacitor failure, ignition due to thin film capacitor failure, arcing explosion between the positive and negative electrodes, and the like occurs. Because the shell of the inverter is a sealed structure, high voltage can be generated inside the inverter, so that large acting force is applied to the inverter, and the structure of the inverter is easily damaged. Even after the inverter structure is damaged, sputtering is easily caused, and potential safety hazards are caused.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem how to reduce the potential safety hazard in the dc-to-ac converter use.

In order to solve the problems, the utility model provides an explosion-proof inverter, which comprises a box body, a cover body and a bearing block, wherein the box body is provided with a pressure relief opening, the lower end of the cover body is hinged with the box body, the upper end of the cover body is detachably connected with the box body, and the cover body is used for sealing the pressure relief opening; the bearing block is arranged at the upper end of the cover body.

The technical effects of the utility model: among the dc-to-ac converter overall structure, set up the pressure release mouth on the box, and set up the lid on the box and cover the pressure release mouth, when the dc-to-ac converter normally operates, utilize the lid to seal the pressure release mouth, make the box be the enclosed construction, can prevent that dust etc. from entering into in the box, avoid influencing the dc-to-ac converter normal use, when the dc-to-ac converter operation is unusual, the box produces the high pressure, open the lid, the gaseous outflow from the pressure release mouth of being convenient for, thereby prevent that gaseous from applying the effort to the box, can prevent the dc-to-ac converter explosion, avoid the dc-to-ac converter to damage, and reduce the potential safety hazard. Simultaneously, set up the bearing block to set up the upper end at the lid with the bearing block, and the lower extreme and the box of lid are articulated, under the effect of gravity, can drive the lid fast and use the hinged end to rotate as axial outside or inboard, thereby open the lid. From this, set up the bearing block on the lid, can effectively, open the lid in time, be favorable to the dc-to-ac converter to carry out the pressure release, further reduce the potential safety hazard.

Optionally, the bearing block is located on one side of the cover body deviating from the pressure relief opening.

Optionally, the bearing block and the cover are configured as an integral structure.

Optionally, the explosion-proof inverter further includes a latch and a lock tongue, the latch is located at the upper end of the cover body and faces the pressure relief opening, and the lock tongue is disposed in the box body and is used for being connected with the latch.

Optionally, the explosion-proof inverter further comprises a monitoring mechanism, wherein the monitoring mechanism is arranged in the box body and is used for detecting gas in the box body.

Optionally, the monitoring mechanism comprises a barometric pressure sensor and a smoke sensor.

Optionally, the explosion-proof inverter further comprises a driving mechanism, the driving mechanism is in driving connection with the lock tongue, and when the detection data of the monitoring mechanism reaches a preset value, the driving mechanism is used for driving the lock tongue to be connected with the lock catch.

Optionally, the driving mechanism is set as an electric push rod, the electric push rod is arranged in the box body, the lock tongue is connected with the electric push rod in a sliding mode, and the electric push rod is used for driving the lock tongue to perform telescopic motion.

Optionally, the electronic device further comprises a plurality of electronic devices located in the box body, each of the electronic devices is correspondingly provided with one of the pressure relief ports, and each of the pressure relief ports is correspondingly provided with one of the cover bodies.

Optionally, explosion-proof inverter still includes the sealing washer, the sealing washer sets up the lid orientation one side of pressure release mouth, and be used for with the box butt.

Drawings

Fig. 1 is a schematic structural diagram of an explosion-proof inverter according to an embodiment of the present invention;

fig. 2 is a sectional view of an explosion-proof inverter according to an embodiment of the present invention;

fig. 3 is an enlarged view of the area a in fig. 2.

Reference numerals:

1. a box body; 2. a cover body; 3. a bearing block; 4. locking; 5. a latch bolt; 6. a drive mechanism; 7. and (5) sealing rings.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

In this embodiment, a Z-axis coordinate system is established, where the forward direction of the Z-axis is the upper direction, and the reverse direction of the Z-axis is the lower direction.

In order to solve the above problems, as shown in fig. 1-3, an explosion-proof inverter according to an embodiment of the present invention includes a box 1, a cover 2, and a bearing block 3, wherein the box 1 is provided with a pressure relief opening, a lower end of the cover 2 is hinged to the box 1, an upper end of the cover 2 is detachably connected to the box 1, and the cover 2 is used for sealing the pressure relief opening; the bearing block 3 is provided at the upper end of the lid body 2.

Wherein, can adopt multiple connected modes such as bonding, joint between lid 2 upper end and the box 1.

In this embodiment, when the inverter is unusual in operation, arc phenomenon appears in certain electron device in the box 1, produces gas in the box 1, can lead to producing high pressure in the box 1, breaks off the connection back between lid 2 upper end and the box 1, under the effect of gravity of bearing block 3, lid 2 uses the articulated department of lower extreme and box 1 to rotate as the axle to open lid 2, gas flows from the pressure release mouth.

In conclusion, among the inverter overall structure, set up the pressure release mouth on box 1, and set up lid 2 on box 1 and cover the pressure release mouth, when the inverter normally operates, utilize lid 2 to seal the pressure release mouth, make box 1 be the enclosed construction, can prevent that dust etc. from entering into in box 1, avoid influencing the inverter and normally use, when the inverter operates unusually, box 1 produces the high pressure, open lid 2, the gaseous pressure release mouth outflow of following of being convenient for, thereby prevent that gaseous from exerting the effort to box 1, can prevent the inverter explosion, avoid the inverter to damage, and reduce the potential safety hazard. Simultaneously, set up bearing block 3 to set up bearing block 3 in the upper end of lid 2, and the lower extreme of lid 2 and box 1 are articulated, under the effect of gravity, can drive lid 2 fast and use the hinged end to rotate as axial outside or inboard, thereby open lid 2. From this, set up bearing block 3 on lid 2, can effectively, open lid 2 in time, be favorable to the dc-to-ac converter to carry out the pressure release, further reduce the potential safety hazard.

In addition, when adopting the bonding mode to connect between lid 2 upper end and the box 1, behind the production gas in the box 1, exert the effort to lid 2 to this disconnection 2 upper ends of lid and the connection between the box 1, later, under the influence of the action of gravity of bearing block 3, open lid 2 automatically, when the dc-to-ac converter appears unusually promptly, can open lid 2 automatically, further reduce the potential safety hazard.

Alternatively, as shown in fig. 1 and 3, the bearing block 3 is located on the side of the cover body 2 facing away from the pressure relief opening.

In this embodiment, when the driving mechanism 6 drives the latch 5 to disengage from the latch 4, on one hand, the gas in the box 1 pushes the cover 2 to move outward, and on the other hand, the bearing block 3 is provided, and under the action of gravity, the bearing block 3 also drives the cover 2 to move outward. From this, can guarantee that the effort that gaseous effort that produces and the effort that bearing block 3 produced all drive lid 2 and outwards move, be favorable to opening lid 2 fast, the dc-to-ac converter of being convenient for carries out the pressure release.

Alternatively, as shown in fig. 1 and 3, the bearing block 3 is provided as an integral structure with the cover body 2.

In this embodiment, the bearing block 3 and the cover body 2 are integrally formed, so that the cover body 2 and the bearing block 3 can be rapidly processed. Meanwhile, the bearing block 3 and the cover body 2 can be integrally installed on the box body 1, and the installation process of the cover body 2 is simplified.

Optionally, as shown in fig. 3, the explosion-proof inverter further includes a latch 4 and a latch 5, the latch 4 is located at the upper end of the cover 2 and is disposed toward the pressure relief opening, and the latch 5 is disposed in the box 1 and is used for being connected to the latch 4.

In this embodiment, because the one end of lid 2 and box 1 are articulated, when closing lid 2 in box 1, insert spring bolt 5 in the hasp 4 of the lid 2 other end to guarantee the stability of being connected between lid 2 and the box 1. Simultaneously, when the dc-to-ac converter needs the pressure release, take out spring bolt 5, break away from hasp 4, the gas in the box 1 produces thrust to lid 2 to can open lid 2. In addition, after the inverter releases the pressure, the cover body 2 can be covered on the box body 1, and then the bolt 5 is inserted into the lock catch 4, so that the pressure release port can be sealed again, the cover body 2 can be reused, and the use cost is reduced.

Optionally, the explosion-proof inverter further comprises a monitoring mechanism, the monitoring mechanism is arranged in the box body 1 and is used for detecting gas in the box body 1.

Wherein, a voice prompt mechanism can be arranged and electrically connected with the monitoring mechanism.

In this embodiment, when monitoring mechanism detects that there is gas in the dc-to-ac converter, give voice prompt mechanism with the signal transmission, voice prompt mechanism can instruct the staff to take out spring bolt 5, opens lid 2. Similarly, when monitoring mechanism detects that there is not gaseous in the dc-to-ac converter, give voice prompt mechanism with the signal transmission, voice prompt mechanism instructs the staff to close lid 2 to insert spring bolt 5.

Wherein, a display screen electrically connected with the monitoring mechanism can be arranged on the outer side of the box body 1.

In this embodiment, when setting up baroceptor, set up a default, when baroceptor detected the atmospheric pressure in the box 1 and exceeded the default, can show corresponding typeface through the display screen, the suggestion staff takes out spring bolt 5, opens lid 2. Similarly, when setting up smoke transducer, when smoke transducer detected that there was smog in box 1, can show corresponding typeface through the display screen, the suggestion staff takes out spring bolt 5, opens lid 2. From this, use baroceptor and smoke transducer combination, can guarantee the validity of testing result to in time open 2 reliefs of lid.

Optionally, as shown in fig. 3, the explosion-proof inverter further includes a driving mechanism 6, the driving mechanism 6 is in driving connection with the latch 5, and when the detection data of the monitoring mechanism reaches a preset value, the driving mechanism 6 is configured to drive the latch 5 to be connected with the buckle 4.

In the present embodiment, for example, the monitoring mechanism is set as an air pressure sensor, a preset value is set, and when the air pressure sensor detects that the air pressure in the box body 1 exceeds the preset value, an unsafe signal is transmitted to the driving mechanism 6; the driving mechanism 6 operates to draw the bolt 5 out of the buckle 4. Then, the cover body 2 is opened, the air is discharged through the pressure relief opening, then the cover body 2 is closed, and when the air pressure sensor detects that the air pressure in the box body 1 does not exceed a preset value, a safety signal is transmitted to the driving mechanism 6; the driving mechanism 6 operates to drive the bolt 5 to be inserted into the buckle 4. Therefore, when the electronic device in the inverter generates gas, the bolt 5 can be automatically controlled to be drawn out from the lock catch 4, so that automation is realized, the inverter can be decompressed more timely, and the explosion-proof effect of the inverter is improved.

Optionally, the explosion-proof inverter further comprises a control mechanism, and the control mechanism is electrically connected with the monitoring mechanism and the driving mechanism 6.

Optionally, as shown in fig. 3, the driving mechanism 6 is an electric push rod, the electric push rod is disposed in the box body 1, the latch 5 is slidably connected to the electric push rod, and the electric push rod is used for driving the latch 5 to perform telescopic motion.

In this embodiment, when the driving mechanism 6 is set as an electric push rod, similar to a relay, the bolt 5 can be controlled to extend and retract through an electromagnetic force, for example, when the monitoring mechanism transmits an unsafe signal to the electric push rod, a circuit is opened, the bolt 5 automatically contracts to enable the bolt 5 to be drawn out from the buckle 4, and when the monitoring mechanism transmits a safe signal to the electric push rod, the circuit is disconnected, and the bolt 5 automatically extends to enable the bolt 5 to be inserted into the buckle 4. Simultaneously, set up spring bolt 5 and actuating mechanism 6 in box 1 to set up hasp 4 in the inboard of lid 2, close lid 2 and cover behind box 1, spring bolt 5 and hasp 4 all are located the inverter inside, and the inverter is at normal operation in-process, and lid 2 and box 1 can protect spring bolt 5 and hasp 4, thereby has guaranteed the airtight effect of inverter, prevents inside the dust gets into the inverter, avoids influencing the use of inverter.

Optionally, the explosion-proof inverter further includes a plurality of electronic devices located in the box body 1, each electronic device is correspondingly provided with a pressure relief port, and each pressure relief port is correspondingly provided with a cover body 2.

The electronic devices are respectively and correspondingly provided with a pressure relief opening, namely, a pressure relief opening is formed near each electronic device.

In this embodiment, when an abnormality occurs during the operation of the inverter, an arc discharge phenomenon occurs in one of the electronic devices in the box 1, and gas is generated in the box 1, which may cause sudden change of gas in this region, and short-time high voltage is generated, thereby destroying the structure of the box 1. Through on box 1, every electronic device all sets up a pressure release mouth relatively, when this electronic device appears drawing the arc phenomenon, produces gas in this region, leads to this partial atmospheric pressure to rise, produces thrust to the lid 2 of sealing on the pressure release mouth to make lid 2 break away from box 1, in order to open the pressure release mouth, the gaseous pressure release mouth of following of production flows.

From this, through seting up a plurality of pressure release mouths to all correspond a pressure release mouth with every electronic device, when electronic device produced gas, the pressure release mouth that directly will be close to this electronic device is opened, can realize quick pressure release, and when a plurality of electronic devices produced gas simultaneously, can open a plurality of pressure release mouths simultaneously and carry out the pressure release, has strengthened the explosion-proof effect of dc-to-ac converter. In addition, the electronic device can be replaced and maintained through the pressure relief port, the inverter does not need to be integrally disassembled, and the maintenance process of the inverter is simplified.

Optionally, as shown in fig. 3, the explosion-proof inverter further includes a sealing ring 7, and the sealing ring 7 is disposed on one side of the cover body 2 facing the pressure relief opening and is used for abutting against the box body 1.

In this embodiment, when the cover 2 is closed to the case 1, the peripheral side of the seal ring 7 provided on the cover 2 abuts against the peripheral wall of the pressure relief opening, so that the gap between the cover 2 and the case 1 is closed, thereby achieving the dustproof and waterproof effects and ensuring the normal operation of the inverter.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications are intended to fall within the scope of the disclosure.

Claims

1. An explosion-proof inverter is characterized by comprising a box body (1), a cover body (2) and a bearing block (3), wherein a pressure relief opening is formed in the box body (1), the lower end of the cover body (2) is hinged to the box body (1), the upper end of the cover body (2) is detachably connected with the box body (1), and the cover body (2) is used for sealing the pressure relief opening; the bearing block (3) is arranged at the upper end of the cover body (2).

2. Explosion-proof inverter according to claim 1, characterized in that the bearing block (3) is located on the side of the cover (2) facing away from the pressure relief opening.

3. Explosion-proof inverter according to claim 1, characterized in that the bearing block (3) is provided as an integral structure with the cover (2).

4. The explosion-proof inverter of claim 1, further comprising a latch (4) and a bolt (5), wherein the latch (4) is located at the upper end of the cover (2) and is disposed toward the pressure relief port, and the bolt (5) is disposed in the case (1) and is configured to be connected to the latch (4).

5. The explosion-proof inverter of claim 4, further comprising a monitoring mechanism disposed within the case (1) and configured to detect a gas within the case (1).

6. The explosion-proof inverter of claim 5, wherein the monitoring mechanism comprises a barometric pressure sensor or a smoke sensor.

7. The explosion-proof inverter of claim 5, further comprising a driving mechanism (6), wherein the driving mechanism (6) is in driving connection with the latch (5), and when the detection data of the monitoring mechanism reaches a preset value, the driving mechanism (6) is used for driving the latch (5) to be connected with the latch (4).

8. The explosion-proof inverter of claim 7, wherein the driving mechanism (6) is configured as an electric push rod, the electric push rod is disposed in the box body (1), the latch (5) is slidably connected with the electric push rod, and the electric push rod is used for driving the latch (5) to perform telescopic motion.

9. The explosion-proof inverter of claim 1, further comprising a plurality of electronic components disposed in the case (1), wherein each of the electronic components is provided with one of the pressure relief ports, and each of the pressure relief ports is provided with one of the covers (2).

10. The explosion-proof inverter of claim 1, further comprising a sealing ring (7), wherein the sealing ring (7) is disposed on a side of the cover (2) facing the pressure relief opening and is configured to abut against the case (1).