CN212169305U - Power module structure and welding machine - Google Patents
Power module structure and welding machine Download PDFInfo
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- CN212169305U CN212169305U CN202020340275.0U CN202020340275U CN212169305U CN 212169305 U CN212169305 U CN 212169305U CN 202020340275 U CN202020340275 U CN 202020340275U CN 212169305 U CN212169305 U CN 212169305U
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Abstract
The utility model belongs to the technical field of the heat dissipation, a power module structure and welding machine is disclosed. The power module structure comprises a shell; the first fan assembly is arranged on the side wall of the shell; the second fan assembly is arranged on the side wall of the shell and is parallel to the first fan assembly at intervals; the heat dissipation assembly is arranged in the shell; a main transformer disposed inside the housing; the first air outlet is arranged on the shell and positioned on one side of the heat dissipation component; the second air outlet is arranged on the shell and positioned on the other side of the heat dissipation assembly; cooling air flow entering from the first fan assembly is discharged from the first air outlet after passing through the heat dissipation assembly to form a first air channel; and cooling air flow entering from the second fan assembly is discharged from the second air outlet after passing through the heat dissipation assembly and the main transformer to form a second air passage. The first air passage and the second air passage are shorter, and the heat dissipation and cooling effects are improved. Simultaneously, intake and air outlet area are bigger.
Description
Technical Field
The utility model relates to a heat dissipation technical field especially relates to a power module structure and welding machine.
Background
The power module structure of the traditional inverter welding machine generally has two types, namely a front air cooling structure, a rear air cooling structure and an upper air cooling structure and a lower air cooling structure. For the front and rear air cooling structure, a fan is arranged at the rear part of the whole welding machine, a shutter is arranged on a front panel of the welding machine, cooling air flow enters from the rear fan, flows through power devices such as an Insulated Gate Bipolar Transistor (IGBT) radiator, a main transformer, a fast recovery tube radiator and the like, and then is discharged from the front shutter.
The inverter welding machine adopting the structure has the advantages that the heat dissipation air duct is too long, the cooling air flow is heated into hot air after passing through the heating part close to the fan (the air inlet) at the mounting position, and the cooling effect of the heated part close to the air outlet is greatly reduced by the heated air, so that the cooling effect of the heating part close to the front panel at the mounting position is poor. Therefore, the inverter welding machine adopting the structural design has poor heat dissipation condition, and the load persistence rate of the whole machine is lower, generally 35-60%. If a higher load duration rate needs to be obtained, a fan with high power is needed, the volume of a radiator is increased, the volume of the whole machine is obviously increased, and the production and manufacturing cost is higher.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a power module structure and welding machine has shortened the cooling air flue, improves the radiating effect.
To achieve the purpose, the utility model adopts the following technical proposal:
a power module structure comprises a shell;
the first fan assembly is arranged on the side wall of the shell;
the second fan assembly is arranged on the side wall of the shell and is parallel to the first fan assembly at intervals;
a heat dissipation assembly disposed within the housing;
a main transformer disposed inside the housing;
the first air outlet is arranged on the shell and positioned on one side of the heat dissipation assembly;
the second air outlet is arranged on the shell and positioned on the other side of the heat dissipation assembly;
cooling air entering from the first fan assembly flows through the heat dissipation assembly and then is discharged from the first air outlet to form a first air channel; and cooling air entering from the second fan assembly flows through the heat dissipation assembly and the main transformer and then is discharged from the second air outlet to form a second air channel.
Preferably, the first air passage is of an L-shaped structure, and the second air passage is of an L-shaped structure.
Preferably, the first air outlet, the second air outlet, the heat dissipation assembly, the main transformer, the first fan assembly and the second fan assembly are distributed in a T-shaped structure.
Preferably, the heat dissipation assembly includes a quick-recovery tube radiator disposed inside the housing.
Preferably, the long side surface of the fast recovery pipe radiator is respectively arranged opposite to the first fan assembly and the second fan assembly, one short side surface of the fast recovery pipe radiator is arranged opposite to the first air outlet, and the other short side surface of the fast recovery pipe radiator is arranged opposite to the main transformer.
Preferably, the heat dissipation assembly further comprises an IGBT radiator disposed inside the housing and connected to the fast recovery tube radiator.
Preferably, the first fan assembly comprises:
a first cooling fan passing through a long side of the housing;
and the first fan cover is arranged on the first cooling fan and positioned on the outer side of the first cooling fan.
Preferably, the second fan assembly comprises:
a second cooling fan passing through a long side of the case;
and the second fan cover is arranged on the second cooling fan and positioned on the outer side of the second cooling fan.
Preferably, the housing includes:
a U-shaped shroud for mounting the first fan assembly and the second fan assembly;
and two ends of the baffle are respectively connected to the U-shaped cover and are arranged opposite to the main transformer.
In order to achieve the above object, the present invention further provides a welding machine, including the above power module structure.
The utility model has the advantages that:
the utility model provides a power module structure for power devices such as radiator unit and main transformer cools off, and cooling air is by following first fan subassembly, second fan subassembly from up directly blowing to all power devices that generate heat such as radiator unit and main transformer down, then cooling air is respectively through first air outlet and second air outlet exhaust power module structure. According to the principle that the air duct is shorter and the air cooling effect is better, compared with the existing traditional structure, the first air duct and the second air duct of the power module structure of the embodiment are shorter, and the heat dissipation and cooling effects are improved. Simultaneously, adopt two fan subassemblies of first fan subassembly, second fan subassembly as the air intake, two air outlets of first air outlet and second air outlet for intake and air outlet area are bigger, and the air outlet area is the twice of traditional structure, and all power devices can all be directly cooled off by the cold wind direct cooling that first fan subassembly, second fan subassembly blown, have solved the not good problem of the device radiating effect that generates heat that is located the air outlet.
The embodiment also provides a welding machine, which comprises the power module structure. The welding machine has the advantages of remarkably reducing the volume of the welding machine, greatly improving the load persistence rate index of the welding machine, along with lower cost, smaller volume and stronger power.
Drawings
Fig. 1 is an exploded view of the power module structure of the present invention;
fig. 2 is a schematic diagram of the flow of the cooling air flow in the power module structure of the present invention.
In the figure:
1. a housing; 2. a first fan assembly; 3. a second fan assembly; 4. a heat dissipating component; 5. a main transformer; 6. a first air outlet; 7. a second air outlet; 8. a control component;
11. a U-shaped cover; 12. a baffle plate;
21. a first cooling fan; 22. a first fan guard;
31. a second cooling fan; 32. a second fan guard;
41. a quick recovery tube radiator; 42. an IGBT radiator;
81. a power panel; 82. a rectifying plate; 83. an inverter board; 84. a drive plate; 85. a filter capacitor; 86. and (5) slowly lifting the plate.
Detailed Description
In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
The embodiment provides a power module structure, which is arranged in a welding machine, wherein the welding machine is specifically a T-shaped welding machine. As shown in fig. 1-2, the power module structure includes a housing 1, a first fan assembly 2, a second fan assembly 3, a heat dissipation assembly 4, a main transformer 5, a first air outlet 6, and a second air outlet 7, where the housing 1 has a function of integral support and accommodation, the housing 1 has a shape similar to a rectangular parallelepiped structure, and for convenience of description, the length direction of the housing 1 is defined as a first direction, and the width direction of the housing 1 is defined as a second direction. The side wall of the shell 1 along the first direction is provided with a first fan component 2 and a second fan component 3, and the first fan component 2 and the second fan component 3 are arranged in parallel at intervals. A heat dissipation assembly 4 and a main transformer 5 are arranged inside the housing 1, and the heat dissipation assembly 4 and the main transformer 5 are heat-generating power devices. A first air outlet 6 is arranged on one side wall of the casing 1 along the second direction, that is, the first air outlet 6 is located on one side of the heat dissipation assembly 4, and a second air outlet 7 is arranged on the other side wall of the casing 1 along the second direction, that is, the second air outlet 7 is located on the other side of the heat dissipation assembly 4. Cooling air flow entering from the first fan assembly 2 passes through the heat dissipation assembly 4 and then is discharged from the first air outlet 6 to form a first air channel; and cooling air flow entering from the second fan assembly 3 passes through the heat dissipation assembly 4 and the main transformer 5 and then is discharged from the second air outlet 7 to form a second air channel.
The power module structure that this embodiment provided for power devices such as radiator unit 4 and main transformer 5 cool off, and cooling air is by following first fan subassembly 2, second fan subassembly 3 from up directly blowing to all power devices that generate heat such as radiator unit 4 and main transformer 5 from down, then cooling air is respectively through first air outlet 6 and the power module structure of 7 ejections of second air outlet. According to the principle that the air duct is shorter and the air cooling effect is better, compared with the existing traditional structure, the first air duct and the second air duct of the power module structure of the embodiment are shorter, and the heat dissipation and cooling effects are improved. Simultaneously, adopt two fan subassemblies of first fan subassembly 2, second fan subassembly 3 as the air intake, two air outlets of first air outlet 6 and second air outlet 7 for intake and air outlet area are bigger, and the air outlet area is the twice of traditional structure, and all power devices can all be directly cooled off by the cold wind direct cooling that first fan subassembly 2, second fan subassembly 3 blown in, have solved the not good problem of the device radiating effect that generates heat that is located the air outlet.
By adopting a power module structure, taking a manual electric arc welder ZX7-400W of 400A as an example, before the power module structure is not used, the length x width x height of the whole machine is as follows: 473mmx300mmx408mm, weight: 18.5KG, the ratio of duty cycle operation to rest time at 40 degrees ambient temperature is only 35%. And the manual arc welding machine ZX7-400 MINI with the same length, width and height of 400A adopting the power module structure is as follows: 268mmx200mmx186mm, weight 10 kg, load duration up to 100% at 40 ℃ ambient temperature. Therefore, by adopting the power module structure, the volume and the weight are approximately reduced by half, and the load duration is improved by 2.8 times. Meanwhile, the volume is reduced, so that the cost of the whole machine is reduced by more than 20%, and the production and manufacturing cost is effectively reduced.
Further, as shown in fig. 1-2, the first air outlet 6, the second air outlet 7, the heat dissipation assembly 4, the main transformer 5, the first fan assembly 2, and the second fan assembly 3 are distributed in a "T" shape. By adopting the structural layout and the T-shaped structural layout, the volume of the welding machine is obviously reduced, and the load duration index of the welding machine is greatly improved. The first air passage is of an L-shaped structure, the second air passage is of an L-shaped structure, the cooling air passage is shortened, the path of cooling air flow circulation is reduced, the heat dissipation effect of the power device is greatly improved, and the heat dissipation effect and the heat dissipation cost of the inverter welding machine are remarkably reduced.
Further, the housing 1 includes a U-shaped cover 11 and a baffle 12, the U-shaped cover 11 is in a U-shaped configuration, and the U-shaped cover 11 is used for mounting the first fan assembly 2 and the second fan assembly 3. Specifically, a first through hole and a second through hole are formed in the U-shaped cover 11, the first through hole and the second through hole are both of circular through hole structures, the first through hole is used for the first fan assembly 2 to penetrate through, and the second through hole is used for the second fan assembly 3 to penetrate through. Two ends of the baffle 12 are respectively connected to two side arms of the U-shaped cover 11, the baffle 12 is arranged opposite to the main transformer 5, and the baffle 12 plays a role in guiding cooling air flow, so that the cooling air flow is guided to pass through between the U-shaped cover 11 and the baffle 12 and cools the main transformer 5. The baffle 12 is made of aluminum plate, which is convenient for heat dissipation.
Further, the first fan assembly 2 includes a first cooling fan 21 and a first fan guard 22, and the first cooling fan 21 passes through the first through hole of the long side surface of the housing 1. The first fan guard 22 is covered on the first cooling fan 21 and located outside the first cooling fan, and the first fan guard 22 plays a role of dust protection.
Further, the second fan assembly 3 includes a second cooling fan 31 and a second fan guard 32, and the second cooling fan 31 passes through the second through hole of the long side of the housing 1. The second fan guard 32 is arranged on the second cooling fan 31 and located outside the second cooling fan, and the second fan guard 32 plays a role in dust protection.
Further, as shown in fig. 1-2, the heat dissipation assembly 4 includes a quick recovery tube heat sink 41, the quick recovery tube heat sink 41 is a rectangular parallelepiped structure, and the quick recovery tube heat sink 41 is disposed inside the housing 1. The fast recovery pipe radiator 41 is arranged right opposite to the first fan assembly 2 and the second fan assembly 3 along the long side face of the first direction, so that the first fan assembly 2 and the second fan assembly 3 can radiate the fast recovery pipe radiator 41. In this way, the first fan assembly 2 and the second fan assembly 3 can jointly cool the fast recovery pipe radiator 41, and the cooling effect is improved. One short side surface of the fast recovery pipe radiator 41 in the second direction is opposite to the first air outlet 6, so that cooling air flow can conveniently flow out from the first air outlet 6, and the other short side surface of the fast recovery pipe radiator 41 in the second direction is opposite to the main transformer 5, so that cooling air flow can conveniently flow out from the second air outlet 7.
Further, heat dissipation assembly 4 further includes an IGBT heat sink 42, and IGBT heat sink 42 is connected to fast recovery tube heat sink 41. Alternatively, the IGBT radiator 42 may be provided inside or outside the housing 1 as long as it can perform a function, and a specific mounting position is not limited.
In order to realize the control function and the communication connection, the power module structure further comprises a control assembly 8, the control assembly 8 comprises a power panel 81, a rectifying panel 82, an inverter panel 83, a driving panel 84, a filter capacitor 85 and a slow-start panel 86, the power panel 81 is used for providing electric energy, and the driving panel 84 is electrically connected to the power panel 81, the rectifying panel 82, the inverter panel 83, the filter capacitor 85 and the slow-start panel 86 respectively, so that the driving effect is achieved.
The embodiment also provides a welding machine, which comprises the power module structure. The volume of the welding machine is obviously reduced, the load duration index of the welding machine is greatly improved, the welding machine has the advantages of lower cost, smaller volume and stronger power, particularly the contravariant welding machine improves the competitiveness and has very high practical value.
In the description herein, it is to be understood that the terms "upper", "lower", "right", and the like are used in an orientation or positional relationship based on that shown in the drawings for convenience of description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.
In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied thereto. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. A power module structure, includes casing (1), its characterized in that still includes:
a first fan assembly (2) arranged on a side wall of the housing (1);
the second fan assembly (3) is arranged on the side wall of the shell (1) and is parallel to the first fan assembly (2) at intervals;
a heat dissipating component (4) disposed inside the housing (1);
a main transformer (5) provided inside the housing (1);
the first air outlet (6) is arranged on the shell (1) and is positioned on one side of the heat dissipation assembly (4);
the second air outlet (7) is arranged on the shell (1) and is positioned on the other side of the heat dissipation assembly (4);
cooling air entering from the first fan assembly (2) passes through the heat dissipation assembly (4) and then is discharged from the first air outlet (6) to form a first air channel; and cooling air entering from the second fan assembly (3) flows through the heat dissipation assembly (4) and the main transformer (5) and then is discharged from the second air outlet (7) to form a second air channel.
2. The power module structure of claim 1, wherein the first air passage is an L-shaped structure and the second air passage is an L-shaped structure.
3. The power module structure according to claim 1, wherein the first air outlet (6), the second air outlet (7), the heat sink (4), the main transformer (5), the first fan assembly (2), and the second fan assembly (3) are distributed in a "T" shape.
4. A power module arrangement according to claim 3, characterized in that the heat sink assembly (4) comprises a quick-recovery heat sink (41), the quick-recovery heat sink (41) being arranged inside the housing (1).
5. The power module structure according to claim 4, wherein the long side of the fast recovery tube radiator (41) is disposed opposite to the first fan assembly (2) and the second fan assembly (3), respectively, one short side of the fast recovery tube radiator (41) is disposed opposite to the first air outlet (6), and the other short side of the fast recovery tube radiator (41) is disposed opposite to the main transformer (5).
6. The power module structure according to claim 4, wherein the heat sink assembly (4) further comprises an IGBT heat sink (42), the IGBT heat sink (42) being disposed inside the housing (1) and connected to the fast recovery tube heat sink (41).
7. The power module arrangement according to claim 1, characterized in that the first fan assembly (2) comprises:
a first cooling fan (21) passing through a long side of the housing (1);
the first fan cover (22) is covered on the first cooling fan (21) and located on the outer side of the first fan cover (22).
8. The power module structure according to claim 1, characterized in that the second fan assembly (3) comprises:
a second cooling fan (31) passing through the long side of the housing (1);
and the second fan cover (32) is covered on the second cooling fan (31) and positioned at the outer side of the second fan cover (32).
9. The power module structure according to claim 1, characterized in that the housing (1) comprises:
a U-shaped shroud (11) for mounting the first fan assembly (2) and the second fan assembly (3);
and two ends of the baffle (12) are respectively connected to the U-shaped cover (11) and are arranged opposite to the main transformer (5).
10. A welding machine comprising a power module structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020340275.0U CN212169305U (en) | 2020-03-18 | 2020-03-18 | Power module structure and welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020340275.0U CN212169305U (en) | 2020-03-18 | 2020-03-18 | Power module structure and welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212169305U true CN212169305U (en) | 2020-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020340275.0U Active CN212169305U (en) | 2020-03-18 | 2020-03-18 | Power module structure and welding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212169305U (en) |
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2020
- 2020-03-18 CN CN202020340275.0U patent/CN212169305U/en active Active
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