CN213135395U

CN213135395U - Welding power supply case and welding power supply

Info

Publication number: CN213135395U
Application number: CN202021025977.6U
Authority: CN
Inventors: 李振升; 贾想
Original assignee: Hangzhou Kaierda Electric Welding Machine Co Ltd
Current assignee: Hangzhou Kaierda Electric Welding Machine Co Ltd
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2021-05-07
Anticipated expiration: 2030-06-04

Abstract

The utility model discloses a welding power supply cabinet, which comprises a casing, a radiator, a fan and a partition plate, wherein the casing is hollow, a side plate of the casing is provided with an air vent, and the partition plate is horizontally arranged in the casing to divide the inner space of the casing; the radiator is arranged in the shell, the high-voltage component of the welding power supply and other components are arranged in different spaces of the shell, the high-voltage component of the welding power supply is arranged on the radiator, and the fan and the high-voltage component are respectively arranged on two sides of the radiator; the utility model adopts the scheme that the high-voltage component and other components respectively radiate heat; the thickness of the heat dissipation material is reduced, and the utilization of the heat dissipation material is reduced; the independent space of the high-voltage component is favorable for improving the dustproof capacity of the high-voltage component, and simultaneously, the interference of a high-frequency high-voltage element on other components is reduced; in addition, the upper layer and the lower layer are arranged, so that the occupied area of the equipment is reduced, and the weight reduction of the heat dissipation material is combined, and the on-site placement, the carrying and the use of the related equipment are facilitated.

Description

Welding power supply case and welding power supply

Technical Field

The utility model relates to a device in welding cutting field especially relates to a welding power supply machine case and welding power supply.

Background

Inverter power sources are widely applied in the field of welding at present, and along with the development trend of large-scale equipment, the requirement of high-power welding power sources is increasingly vigorous. The heat dissipation capability of the high-power welding power supply is guaranteed by continuous welding work, electronic components of the conventional high-power welding power supply are distributed in a strong indoor single-layer plane, a fan is arranged at the top end of the welding power supply to convey gas downwards to cool the electronic components which generate heat, and meanwhile coolers such as cooling plates are used for cooling. The conventional high-power welding power supply uses heat dissipation aluminum materials with large thickness, even 70% of the weight of the whole welding power supply is the heat dissipation aluminum materials, and the usage amount of the heat dissipation materials is large.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of prior art, provide a welding power supply machine case that sparingly radiating material and radiating effect are good.

The utility model adopts the following technical scheme: a welding power supply cabinet comprises a cabinet, a radiator, a fan and a partition plate, wherein the cabinet is hollow, a side plate of the cabinet is provided with a vent hole, the partition plate is horizontally arranged in the cabinet, and the partition plate divides the internal space of the cabinet; the radiator is arranged in the shell, the high-voltage component of the welding power supply and other components are arranged in different spaces of the shell, the high-voltage component of the welding power supply is arranged on the radiator, and the fan and the high-voltage component are respectively arranged on two sides of the radiator.

Further, the transformer also comprises a transformer fan; the welding power supply comprises a shell, a transformer fan, a baffle plate, a transformer fan, a transformer and a welding power supply, wherein the baffle plate is divided into two parts, the inner space of the shell is divided into an upper layer space, a middle layer space and a lower layer space from top to bottom, the components of the welding power supply further comprise the transformer and a low-voltage component, the transformer is arranged in.

Further, the high-voltage component is arranged in the upper-layer space, the low-voltage component is arranged in the lower-layer space, the radiator and the fan are arranged in the lower-layer space, the low-voltage component is arranged on the radiator, and the fan and the low-voltage component are respectively arranged on two sides of the radiator.

Further, the axial direction of the fan is horizontally arranged.

Further, the radiator comprises a mounting plate and radiating fins, the mounting plate is connected with the radiating fins, and the radiating fins are arranged between the mounting plate and the fan;

a mounting plane for mounting electronic components is arranged on one side of the mounting plate, which is far away from the fan, and the mounting plane is vertical to the axis of the fan; the radiating fins are plate-shaped, a plurality of radiating fins are arranged in parallel, the length direction of each radiating fin is horizontal and is vertical to the axis of the fan, and the height direction of each radiating fin is horizontal and is parallel to the axis of the fan;

and vent holes are formed in the side plate of the shell, which is perpendicular to the axis of the fan and close to one side of the fan, and vent holes are formed in the two side plates of the shell, which are perpendicular to the length direction of the radiating fins.

The fan cover is arranged between the fan and the radiating fins, is in a hollow tubular shape with variable cross sections, and guides air from the fan to the radiating fins.

The heat dissipation fin comprises a heat dissipation fin body, and is characterized by further comprising a flow guide portion, wherein the flow guide portion is arranged in the upper layer space, and the flow guide portion is arranged between the heat dissipation fin body and a side plate of the machine shell and used for guiding air in the heat dissipation fin body to the side plate of the machine shell.

Furthermore, the flow guide part gradually increases the flow area from the radiating fin to the side plate direction of the casing.

The utility model also provides a welding power supply, welding power supply includes above-mentioned welding power supply machine case, high-pressure part includes the IGBT module.

Further, the IGBT module comprises two half-bridge modules, and the two half-bridge modules are connected in parallel to form the IGBT module in a full-bridge structure.

The utility model has the advantages that: the utility model uses the partition board to arrange the space inside the casing in a layered manner, thereby realizing the scheme that the high-voltage component and other components are respectively radiated; the thickness of the heat dissipation material is reduced, and the utilization of the heat dissipation material is reduced; the independent space of the high-voltage component is favorable for improving the dustproof capacity of the high-voltage component, reducing the influence of dust on the high-voltage component and simultaneously reducing the interference of a high-frequency high-voltage element on other components; in addition, the upper layer and the lower layer are arranged, so that the occupied area of the equipment is reduced, and the weight reduction of the heat dissipation material is combined, and the on-site placement, the carrying and the use of the related equipment are facilitated.

Further, the transformer fan in the middle layer space directly radiates heat to the transformer, the transformer fan introduces air through the side plate of the shell and then sends the air to the transformer to cool the transformer, and the air for cooling the transformer is discharged from the middle layer space through the side plate far away from the transformer fan; because the structure of the transformer has a certain space, the direct air cooling heat dissipation effect is good, and the direct air cooling is favorable for blowing away suspended matters in air such as dust, and the transformer is ensured to be in a good working environment while the heat dissipation capability is improved.

Furthermore, the high-voltage component, the transformer and the low-voltage component respectively dissipate heat in each layer, which is beneficial to improving the heat dissipation efficiency; meanwhile, the dustproof capacity of related equipment is improved; in addition, each module is arranged in a layered mode, so that the circuit design is simplified, and the equipment is convenient to manufacture and maintain.

Furthermore, the fan is horizontally arranged, so that air blown out by the fan is discharged from two sides after being radiated by the radiator.

Furthermore, the mounting plate can effectively conduct heat generated by the electronic component, the heat is conducted to the radiating fins, the radiating capacity is improved through a larger radiating surface area, channels between the radiating fins and the radiating fins form a flow channel for gas to flow, and air holes blown by the fan flow in the flow channel formed by the radiating fins and take away the heat on the radiating fins and the mounting plate, so that effective heat dissipation is guaranteed. The combined use of the radiating fins and the fan can greatly reduce the thickness and the using amount of the radiating aluminum material and reduce the weight of equipment.

Furthermore, the fan cover enables flowing air output by the fan to act on the radiating fins and takes away heat on the surfaces of the radiating fins through air flowing.

Furthermore, the flow guide part can guide the air flowing through the radiating fins to move towards the side plate of the shell provided with the vent holes, so that the air absorbing heat is ensured to be discharged out of the shell through the vent holes.

Furthermore, the flow area of the flow guide part is gradually increased from the radiating fins to the side plate direction of the shell, the air which is guided by the flow guide part and absorbs heat acts on the side plate of the shell in a larger area, and the air which absorbs heat is discharged from the shell through more air holes in the side plate of the shell, so that the heat radiation of the shell is ensured.

The welding power supply uses the IGBT module, has good wave control performance and is beneficial to the intelligent control of welding equipment.

Furthermore, the two half-bridge IGBT modules form a full-bridge IGBT module, so that the power of the equipment can be effectively improved, and the high-power development direction of the equipment is met.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of FIG. 1 with two side panels removed;

FIG. 3 is a schematic view of FIG. 2 rotated 90 degrees about the vertical axis;

FIG. 4 is a schematic view of the structure of FIG. 1 rotated 90 degrees about the vertical axis;

FIG. 5 is a cross-sectional view of the upper level space of FIG. 1 taken along the horizontal direction;

FIG. 6 is a cross-sectional view of the middle layer space in FIG. 1 taken along the horizontal direction;

fig. 7 is a cross-sectional view of the lower level space in fig. 1 taken along the horizontal direction.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

Example 1

Fig. 1 to 7 are schematic structural diagrams of an embodiment of a welding power supply enclosure according to the present invention. As shown in fig. 1 to 7, this embodiment includes a cabinet 1, a heat sink 2, a fan 3, and a partition 4. The shown cabinet 1 is hexahedral, and the cabinet 1 includes a top surface, a bottom surface and four side surfaces, as shown in fig. 1 to 4, the top surface of the cabinet 1 is not shown. The partition plate 4 is arranged inside the machine shell 1, the partition plate 4 is horizontally arranged, and the machine shell 1 is divided into separate spaces with different upper and lower parts by the partition plate 4. A radiator 2 and a fan 3 are arranged in one space, the radiator 2 is used for fixing high-voltage components of a welding power supply and radiating heat, the fan 3 is used for enhancing the radiating heat of the radiator 2, and the high-voltage components of the welding power supply and the fan 3 are respectively positioned on two sides of the radiator 2.

The embodiment is suitable for welding power supplies and cutting power supplies in the fields of welding and cutting; with the development trend of large-scale equipment manufacturing industry, welding and cutting power supplies are correspondingly developed to high power, a circuit of the welding power supply generally comprises a high-voltage part, a transformer and a low-voltage part, and an IGBT module is generally adopted in the high-voltage part at present. Due to the requirement of large current in welding operation, such as a submerged arc welding power supply, the welding efficiency is high, the welding heat is large, the electric components generate heat seriously, particularly, the IGBT module of the high-voltage part generates heat seriously, and the heat dissipation needs to be enhanced, so that the application of the embodiment effectively improves the heat dissipation capability of the high-power supply.

As shown in fig. 1 and 2, the partition plate 4 of the present embodiment is two, the two partition plates 4 divide the enclosure into three independent spaces, namely, an upper space 12, a middle space 13 and a lower space 14, the upper space 12 is provided with a heat sink 2 and a fan 3, and the heat sink 2 is used for installing and fixing high-voltage components of the welding power supply, such as an IGBT module.

As a specific embodiment, the heat sink 2 and the fan 3 may be in an up-down position, that is, the fan 3 is above the heat sink 2, and the fan 3 delivers flowing air from top to bottom to the heat sink 2 for heat dissipation of the heat sink 2, and at this time, the top surface of the casing is provided with a vent hole 11 for providing fresh air to the fan 3.

As a specific embodiment, as shown in fig. 2 and fig. 3, the heat sink 2 and the fan 3 are in a horizontal position, that is, the fan 3 is in an axial flow type, the rotating shaft of the fan 3 is arranged horizontally, the heat sink 2 is arranged on the side of the air outlet of the fan 3, and the side of the heat sink 2 away from the fan 3 is used for installing and fixing a high-voltage component of a welding power supply. In this embodiment, when the air blown to the heat sink 2 by the fan 3 moves to two sides along the surface of the heat sink 2, at this time, the housing 1 should have the vent holes 11 on three sides, specifically including the side plate of the housing 1 near the air inlet of the fan 3, and the side plate corresponding to the moving direction of the air leaving the heat sink 2, that is, two side plates of the housing 1 adjacent to the side plate of the housing near the air inlet of the fan 3, as shown in fig. 1.

As a specific embodiment, as shown in fig. 5, the illustrated heat sink 2 includes a mounting plate 21 and a heat dissipating fin 22, the mounting plate 21 is connected to the heat dissipating fin 22, and the heat dissipating fin 22 is located between the mounting plate 22 and the fan 3. In one embodiment, the mounting plate 21 and the heat dissipating fins 22 may be formed by integrally connecting different components. For example, the mounting plate 21 and the heat dissipating fins 22 are formed by an aluminum alloy extrusion process at one time, the plate-shaped mounting plate 21 is connected with the heat dissipating fins 22 perpendicular to the mounting plate 21, the heat dissipating fins 22 are arranged in a sheet shape, the heat dissipating fins 22 are a plurality of fins, the plurality of heat dissipating fins 22 are arranged in parallel, the plurality of heat dissipating fins 22 can be arranged at equal intervals or unequal intervals, and the grooves between the two heat dissipating fins 22 can be used as flow channels for air to flow. As a specific embodiment, the sheet-shaped heat dissipating fins 22 are horizontally disposed, when the present embodiment is used, the fan 3 delivers air to the heat dissipating fins 22, the air fills the grooves between the heat dissipating fins 22, the air continuously delivered by the fan 3 flows along the flow channel formed by the heat dissipating fins 22 and the mounting plate 21 and continuously carries away heat on the heat dissipating fins 22, the flowing air flows to both sides along the horizontal direction of the heat dissipating fins 22 and flows to the two side plates of the casing 1, and the two side plates of the casing are provided with corresponding air vents 11 for discharging the air moving from the heat dissipating fins 22 out of the casing.

As a specific embodiment, the vent hole 11 may be a through hole penetrating through a side plate of the casing 1, such as a round hole, a square hole or a hole with other shapes; the air vent 11 also can be the integrated configuration of through-hole and separation blade, as shown in fig. 5, the air vent 11 includes slotted hole and separation blade, the major axis level of slotted hole sets up, the separation blade of supreme outside-in slope is followed to the lower extreme setting in the one side slotted hole of casing 1 inside, the separation blade can effectively block dust entering casing 1 inside, the separation blade also can guide to follow radiating fin 22 motion and the air that arrives is with the outside going of slant direction to casing 1, avoid the horizontal blow directly to crew member or other objects of hot-air, bring bad experience effect. As a specific practical manner, it is also possible to arrange the blocking piece at the upper end of the long round hole at one side outside the casing 1, and the blocking piece is inclined from top to bottom from inside to outside.

As shown in fig. 3, a mounting plane 211 is provided on a side of the mounting plate 21 away from the fan 3, and the mounting plane 211 is provided with a screw hole for mounting an electronic component. As a specific implementation manner, the electronic component includes an integrated circuit, for example, an integrated circuit in which a PCB is provided with a corresponding chip and component, a through hole is provided on the integrated circuit, a screw is used to pass through the through hole to fix the integrated circuit on the mounting plane 211, and the mounting plane 211 is attached to the integrated circuit to perform sufficient heat dissipation.

The axial direction of the rotating shaft of the fan 3 is horizontally arranged, the mounting plane 211 is vertical, and at this time, the mounting plate 21, the top surface, the side plate of the casing 1, and the bracket for mounting the side plate of the casing and the heat dissipation plate can form a closed space, as shown in fig. 2 and 4; related components of a welding power supply are arranged on the installation plane 211, the related components dissipate heat through the installation plate 21, meanwhile, a single and closed space is arranged on the related components, dust can be prevented from entering the space to the maximum extent, and the influence of the dust on the related components is reduced.

As a specific embodiment, the mounting plate 21, the top surface, the side plate of the casing 1, and the bracket for mounting the side plate of the casing and the heat dissipation plate may be formed as separate spaces, or vent holes may be formed in the side plate of the casing 1 and the top surface.

Further, a fan cover 6 is provided between the fan 3 and the heat dissipating fins 22.

As shown in fig. 5, the fan cover 6 is in a horn shape, the side of the fan cover 6 with a small caliber is arranged at the fan 3, and the side of the fan cover 6 with a large caliber is arranged at the radiating fin 22. One side of the fan cover 6 with the small caliber is dried to correspond to the outlet of the fan 3, so that the air output by the fan 3 can completely enter the fan cover 6, one side of the fan cover 6 with the large caliber just covers the partial or the whole surface of the radiating fin 22, and all air provided by the fan 3 can act on the surface of the radiating fin 2 to dissipate heat of the radiating fin 22.

As a specific embodiment, as shown in fig. 5, the height dimension of the fan cover 6 in the height direction is consistent with the height of the heat dissipation fins 22, the horizontal dimension of the fan cover 6 is shorter than the length of the heat dissipation fins 22, the fan 3 and the fan cover 6 are disposed in the middle of the heat dissipation fins 22, the fan cover 6 covers part of the heat dissipation fins 22, at this time, heat dissipation baffles covering the heat dissipation fins 22 may be disposed on both sides of the fan cover 6, each two adjacent heat dissipation fins 22, the mounting plate 21 and the heat dissipation baffle form a tubular flow channel, and the specific tubular flow channel may be a rectangular cross section in the vertical flow channel direction. The heat dissipation baffle can be arranged separately from the fan guard 6, or can be arranged integrally with the fan guard 6, or can be a part of the fan guard 6. As a specific implementation manner, the heat dissipation fins 22 may further include heat dissipation baffles outside the three other sides except the mounting plate 21 side and the two sides except the two sides in the length direction of the heat dissipation fins 22, and the heat dissipation baffle may further include ribs on the side away from the heat dissipation fins 22 for increasing the heat dissipation area of the heat dissipation baffle.

Furthermore, a flow guide part 7 is arranged at a position close to the side plate of the machine shell 1 along the length direction of the radiating fin 22.

As shown in fig. 2 and 5, the flow guiding part 7 is hollow tubular, the hollow flow guiding part 7 is connected with the heat dissipating fins 22, and the air moving in the flow channel formed by the heat dissipating fins 22 enters the flow guiding part 7 and can move towards the side plate of the casing 1 and is discharged outwards through the vent holes 11 arranged on the side plate of the casing 1. As a specific fact, the cross-sectional area of the flow guiding part 7 gradually increases along the flowing direction of the gas, specifically, the flow guiding part 7 is a square pipe with a variable cross-section, i.e. the vertical cross-section is equal in size, and the horizontal cross-sectional size gradually increases along with the heat radiating fins 22 towards the side plate of the casing 1. The variable cross-section flow guide part 7 can guide flowing gas to reach the side plate of the machine shell 1 with a larger area, and meanwhile, the air is exhausted through more air holes 11 formed in the side plate of the machine shell 1, so that the heat dissipation effect of the embodiment is further guaranteed.

Further, the casing 1 is divided into three independent spaces by the two partition plates 4 from top to bottom, wherein the middle space 13 is provided with a transformer fan 5 for dissipating heat of the power transformer arranged in the middle space 13.

As shown in fig. 6, according to the diameter of the transformer fan 5 and the size of the transformer, a corresponding number of transformer fans 5 and transformers may be provided, for example, one transformer fan 5 may be provided for each transformer, or a plurality of transformer fans 5 may be provided for each transformer, for example, two transformer fans 5 may be provided for each transformer. The embodiment shown in fig. 6 includes four transformers, two transformer fans 5 are correspondingly disposed, and each transformer fan 5 dissipates heat for two transformers disposed correspondingly. The transformer fan 5 is of an axial flow type, a rotating shaft of the transformer fan 5 is horizontally arranged, the transformer is arranged at an air outlet of the transformer fan 5, vent holes 11 are formed in two side plates of the casing 1 through which the axis of the rotating shaft of the transformer fan 5 passes, the positions of the vent holes 11 are matched with the positions of the transformer fan 5, specifically, the positions of the vent holes 11 correspond to the height of the middle-layer space 13, and therefore the transformer fan 5 is enabled to suck enough air from the outside of the casing 1 and discharge the corresponding air from the side plate of the casing 1 on the other side. Because the transformer fan 5 is used for forcibly dissipating heat of the transformer, dust on the surface of the transformer can be blown away by the transformer fan 5, and the influence of the dust on the transformer is greatly reduced.

Further, the same technical scheme as that of the upper space 12 is adopted for the lower space 14 of the enclosure 1, as shown in fig. 7, that is, the heat sink 2 and the fan 3 are arranged in the lower space 14, the electronic component and the fan 3 are arranged on two sides of the heat sink 2, the specific heat sink may include an installation plate 21 and a heat dissipation fin 22, a fan cover 6 may also be arranged between the heat dissipation fin 22 and the fan 3, and a heat dissipation baffle may also be arranged, the heat dissipation baffle may be arranged separately from the fan cover 6, and the heat dissipation baffle may also be used as a part of the fan cover 6, so as to achieve the purposes of heat dissipation of the heat dissipation baffle and restraining the moving air from flowing in the flow channel formed by the.

Example 2

The present embodiment is a welding power supply, and the welding power supply case described in embodiment 1 is used in the present embodiment.

As shown in fig. 1-7, the present welding power supply includes a welding power supply enclosure, high voltage components, a transformer, and low voltage components. The welding power supply case comprises three independent spaces, namely an upper space 12, a middle space 13 and a lower space 14, and further comprises a machine shell 1, a radiator 2 and a fan 3. As shown in fig. 2 and 3, the heat sink 2 and the fan 3 are disposed in the upper space, the heat sink 2 includes a mounting plate 21 and a heat dissipating fin 22, a mounting plane 211 is disposed on a side of the mounting plate 21 away from the fan 3, the high-voltage components are disposed in the upper space 12, the high-voltage components are mounted on the mounting plane 211, the medium-voltage components are disposed in the middle space, and the low-voltage components are disposed in the lower space.

In a specific embodiment, the high-voltage component includes an IGBT module, and on a side plate of the enclosure 1 corresponding to the upper space 12, a side plate installed near the fan 3 is provided with a vent hole 11 for supplying air to the fan, and side plates on both sides of the fan 3 are provided with vent holes 11 for discharging heated air passing through the heat dissipation fins 22 out of the enclosure 1.

Further, a transformer fan 5 is arranged in the middle layer space where the transformer is arranged, specifically, the transformer fan 5 is an axial flow type, a rotating shaft of the transformer fan 5 is horizontally arranged, the transformer is arranged on the air outlet side of the transformer fan 5, and the transformer fan 5 provides flowing air for the transformer to perform forced heat dissipation. The casing 1 is provided with a vent hole 11 in the axial direction of the transformer fan 5, and the vent hole is positioned on a side plate of the casing 1 corresponding to the middle layer space 13.

Further, the heat sink 2 and the fan 3 are disposed in the lower space 14, the heat sink 2 includes a mounting plate 21 and a heat dissipating fin 22, a mounting plane 211 is disposed on a side of the mounting plate 21 away from the fan 3, low-voltage components are disposed in the lower space 14, and high-voltage components are mounted on the mounting plane 211. On the side plate of the enclosure 1 corresponding to the lower space 14, a side plate near the fan 3 is provided with vent holes 11 for supplying air to the fan, and the side plates at two sides of the fan 3 are provided with vent holes 11 for discharging the heated air passing through the heat dissipation fins 22 out of the enclosure 1. As a specific way of reality, the bottom surface of the casing 1 may be further provided with a vent hole for discharging the heated air downwards, thereby increasing the heat dissipation capability of the present embodiment.

As a specific embodiment, the IGBT module includes two half-bridge modules, and the two half-bridge modules are connected in parallel to form a full-bridge IGBT module. The utility model discloses when implementing, every half-bridge module setting is on an integrated circuit board, and on two half-bridge module installations the mounting plane 211 of mounting panel 21 in upper space 12, two half-bridge module settings were at corresponding height, and two half-bridge modules set up the both ends at mounting plane 211 horizontal direction respectively. A fan 3 is arranged in the upper space 12, and the space conveyed by the fan 3 reaches the radiating fins 22 and then is dispersed to both sides and respectively cools the two half-bridge modules.

Corresponding to the two half-bridge modules, four transformers and two transformer fans 5 are arranged in the middle space 13, one transformer fan 5 for cooling both transformers simultaneously.

Low-voltage components, a radiator 2 and a fan 3 such as a direct current rectifier circuit and a reactor are disposed in the lower space 14, the low-voltage components are mounted on a mounting plane of a mounting plate 21 of the radiator 2, and the cooling fins 22 of the radiator 2 of the fan 3 provide flowing air for cooling.

The high-voltage part, the transformer and the low-voltage part are sequentially distributed from top to bottom, so that the heat dissipation capacity of each part of the welding power supply can be improved, the dustproof capacity of each part of the welding power supply can also be improved, the circuit layout can be more orderly when the high-voltage part, the transformer and the low-voltage part are sequentially distributed from top to bottom, and the modular design and the maintainability of equipment are improved; in addition, the high-voltage component, the transformer and the low-voltage part are arranged in different independent spaces, so that mutual interference among modules can be reduced, and particularly the interference of the high-frequency high-voltage module on other module components can be reduced.

In a specific embodiment, a fan cover 6 is disposed between the heat dissipating fins 22 and the fan 3 for guiding the flowing air output by the fan 3 to the heat dissipating fins 22, so as to ensure that the air at the outlet of the fan 3 is used for cooling the heat dissipating fins 22.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A welding power supply cabinet is characterized by comprising a cabinet (1), a radiator (2), a fan (3) and a partition plate (4), wherein the cabinet (1) is hollow, a side plate of the cabinet (1) is provided with a vent hole (11), the partition plate (4) is horizontally arranged in the cabinet (1), and the partition plate (4) divides the inner space of the cabinet (1); the radiator (2) is arranged in the shell (1), the high-voltage component of the welding power supply and other components are arranged in different spaces of the shell (1), the high-voltage component of the welding power supply is arranged on the radiator (2), and the fan (3) and the high-voltage component are respectively arranged on two sides of the radiator (2).

2. A welding power supply enclosure according to claim 1, further comprising a transformer fan (5); the utility model discloses a welding power supply, including casing (1), baffle (4), welding power supply, transformer fan's air outlet, baffle (4) are two, and casing (1) inner space is from last to dividing into upper space (12), middle level space (13) and lower floor space (14) down, and welding power supply's components and parts still include transformer and low voltage part, and the transformer setting is in middle level space (13), and the axial level of transformer fan (5) sets up, and the air outlet of transformer fan (5) sets up the air vent with two curb plates of transformer fan (5.

3. A welding power supply cabinet according to claim 2, characterized in that high voltage components are arranged in the upper space (12), low voltage components are arranged in the lower space (14), a heat sink (2) and a fan (3) are arranged in the lower space (14), low voltage components are arranged on the heat sink (2), and the fan (3) and the low voltage components are arranged on both sides of the heat sink (2).

4. A welding power supply cabinet according to claim 3, characterized in that the axial direction of the fan (3) is arranged horizontally.

5. A welding power supply cabinet according to claim 4, characterized in that the heat sink (2) comprises a mounting plate (21) and heat dissipating fins (22), the mounting plate (21) is connected with the heat dissipating fins (22), the heat dissipating fins (22) are between the mounting plate (21) and the fan (3);

a mounting plane (211) for mounting the electronic component is arranged on one side, away from the fan (3), of the mounting plate (21), and the mounting plane (211) is perpendicular to the axis of the fan (3); the radiating fins (22) are plate-shaped, the radiating fins (22) are arranged in parallel, the length direction of the radiating fins (22) is horizontal and is vertical to the axis of the fan (3), and the height direction of the radiating fins (22) is horizontal and is parallel to the axis of the fan (3);

the side plate of the machine shell (1) which is vertical to the axis of the fan (3) and close to one side of the fan is provided with a vent hole (11), and the two side plates of the machine shell (1) which are vertical to the length direction of the radiating fin (22) are provided with vent holes (11).

6. The welding power supply cabinet according to claim 5, characterized by further comprising a fan cover (6), wherein the fan cover (6) is arranged between the fan (3) and the heat dissipation fins (22), the fan cover (6) is in a shape of a hollow tube with a variable cross section, and the fan cover (6) guides air from the fan (3) to the heat dissipation fins (22).

7. The welding power supply cabinet according to claim 6, further comprising a flow guide part (7), wherein the flow guide part (7) is arranged in the upper space (12), and the flow guide part (7) is arranged between the heat dissipation fins (22) and the side plate of the cabinet (1) and used for guiding air in the heat dissipation fins (22) to the side plate of the cabinet (1).

8. The welding power supply cabinet according to claim 7, wherein the flow guide part (7) gradually increases in flow area from the heat dissipation fins (22) to the side plate of the enclosure (1).

9. A welding power supply, characterized in that the welding power supply comprises the welding power supply cabinet of any claim from 1 to 8, and the high-voltage component comprises an IGBT module.

10. The welding power supply of claim 9, wherein the IGBT module comprises two half-bridge modules connected in parallel to form a full-bridge IGBT module.