CN211966265U

CN211966265U - Core heat radiation structure and contravariant welding machine core

Info

Publication number: CN211966265U
Application number: CN202020553151.0U
Authority: CN
Inventors: 程刚
Original assignee: GUANGZHOU YIGAO ELECTRICAL EQUIPMENT CO Ltd
Current assignee: GUANGZHOU YIGAO ELECTRICAL EQUIPMENT CO Ltd
Priority date: 2020-04-14
Filing date: 2020-04-14
Publication date: 2020-11-20
Anticipated expiration: 2030-04-14

Abstract

The utility model relates to a core heat radiation structure and contravariant welding machine core, include: fixing a bracket; the heat dissipation assembly comprises an inversion heat dissipation module and a rectification heat dissipation module, and the inversion heat dissipation module and the rectification heat dissipation module are arranged at intervals up and down and are respectively installed on the fixed support; the rectification heat dissipation module is used for fixing the secondary rectification module and providing heat dissipation for the secondary rectification module; and the airflow guide assembly is arranged at the end part of the heat dissipation assembly and used for guiding air to flow through the heat dissipation assembly so as to reduce the surface temperature of the heat dissipation assembly. The heat dissipation effect is good, the heat dissipation device can well operate in a high-power state, and the service life is prolonged; the component structure is uncomplicated, and required part is few, reduced material cost low, and the structure is simply favorable to reducing the installation degree of difficulty, has promoted installation operating efficiency.

Description

Core heat radiation structure and contravariant welding machine core

Technical Field

The utility model relates to a welding equipment design field especially relates to core heat radiation structure and contravariant welding machine core.

Background

The inverter welder is a common welding device, which is generally composed of three parts, namely a control part, a main loop and a mechanical structure, wherein the main loop of a core of the AC/DC inverter argon arc welder is composed of a rectifier bridge, a filter capacitor, a primary inverter tube, a main transformer, a secondary rectifier tube, a secondary inverter tube, a reactor, a radiator and the like, namely the core of the welder is a structure integrating the parts of rectification, filtering, primary inversion, secondary rectification and secondary inversion, and the welder can output different currents by selecting the rectifier bridge, the inverter tube and the secondary rectifier tube with different capacities.

The movement has the inversion and rectification functions, so that the movement becomes a core component of the electric welding machine, and the current passing through the movement is large, so that the structural installation and the heat dissipation are extremely important. The machine cores on the market at present mostly adopt an integrated plate structure or a parallel structure of primary inversion and secondary inversion double machine cores, and an inversion tube and a rectifier tube with the integrated plate structure are horizontally arranged, so that the heat dissipation effect is poor and the machine cores are easy to damage; the parallel structure of the double machine cores is complex, the cost is high, the installation difficulty is high, and the efficiency is low.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a core heat dissipation structure and an inverter welding machine core aiming at the problems of poor heat dissipation performance and complex structure of the traditional inverter welding machine core.

A core heat dissipation structure comprising:

fixing a bracket;

the heat dissipation assembly comprises an inversion heat dissipation module and a rectification heat dissipation module, and the inversion heat dissipation module and the rectification heat dissipation module are arranged at intervals up and down and are respectively installed on the fixed support; the rectification heat dissipation module is used for fixing the secondary rectification module and providing heat dissipation for the secondary rectification module;

and the airflow guide assembly is arranged at the end part of the heat dissipation assembly and used for guiding air to flow through the heat dissipation assembly so as to reduce the surface temperature of the heat dissipation assembly.

The core heat radiation structure at least has the following beneficial technical effects:

(1) in this embodiment, the inverter heat dissipation module and the rectifier heat dissipation module are arranged at an interval from top to bottom, and can be suspended after being mounted on the fixing support. Because the contravariant heat dissipation module with rectification heat dissipation module keeps the interval unsettled, air current guide assembly guide air can fully contact with its surface and pass fast from contravariant heat dissipation module with space between the rectification heat dissipation module when the radiator unit flows through to take away the heat on radiator unit surface through the heat-conduction effect, can reduce radiator unit's surface temperature, when radiator unit's surface temperature descends fast, locate on radiator unit surface contravariant module and secondary rectifier module and the radiator unit between the heat-conduction effect temperature also directly descend.

(2) The airflow guide assembly has the function of guiding the air to flow, particularly, after the fan is arranged at one end of the airflow guide assembly, the air flow can be accelerated when the fan is started, the accelerated air flows through the heat dissipation assembly, the surface temperature of the heat dissipation assembly can be reduced more quickly, and the heat dissipation effect is better. The airflow guide assembly can also resist external dust while guiding air to cool the heat dissipation assembly, so that the dust is prevented from contacting with the inversion module and the secondary rectification module, and the normal work of the machine core is ensured.

(3) The heat dissipation effect of the embodiment is good, the movement can be ensured to run well under the high-power state, and the service life is prolonged; the component structure is uncomplicated, and required part is few, reduced material cost low, and the structure is simply favorable to reducing the installation degree of difficulty, has promoted installation operating efficiency.

In one embodiment, the inversion heat dissipation module includes a first inversion heat sink and a second inversion heat sink, and the first inversion heat sink and the second inversion heat sink are arranged side by side in a horizontal direction and are respectively used for fixing a primary inversion unit and a secondary inversion unit in the inversion module.

In one embodiment, the fixing bracket includes:

an upper suspension;

and the mounting frame is arranged below the upper suspension and connected with the upper suspension, and is used for fixing the inversion heat dissipation module and the rectification heat dissipation module.

In one embodiment, the mounting bracket includes a mounting rod set connected to the upper suspension and extending downward, and the inverter heat dissipation module and the rectifier heat dissipation module are respectively fixed to the mounting rod set by fasteners.

In one embodiment, the mounting rod group comprises at least two mounting rods which are distributed from front to back and the upper ends of which are connected with the upper suspension.

In one embodiment, the airflow guide assembly is arranged at the front end and/or the rear end of the heat dissipation assembly; the airflow guide assembly comprises two guide plates, the plate surfaces of the two guide plates are opposite, and therefore a channel for air to pass through is formed between the two guide plates.

The utility model provides an contravariant welding machine core, includes contravariant module, secondary rectifier module and above arbitrary the core heat radiation structure, the contravariant module is fixed in contravariant heat radiation module, secondary rectifier module is fixed in rectification heat radiation module, the contravariant module with secondary rectifier module electricity is connected.

In one embodiment, the inversion module comprises a primary inversion unit and a secondary inversion unit, the inversion heat dissipation module comprises a first inversion radiator and a second inversion radiator which are arranged side by side in the horizontal direction, and the primary inversion unit and the secondary inversion unit are respectively and correspondingly arranged on the first inversion radiator and the second inversion radiator.

In one embodiment, the primary inversion unit comprises a primary inversion plate and a primary inversion tube which are connected, the primary inversion plate is arranged on the upper surface of the first inversion radiator, and the primary inversion tube is arranged on the side surface of the first inversion radiator;

the secondary inversion unit comprises a secondary inversion plate and a secondary inversion tube which are connected, the secondary inversion plate is arranged on the upper surface of the second inversion radiator, and the secondary inversion tube is arranged on the side surface of the second inversion radiator.

In one embodiment, the secondary rectification module comprises a secondary rectification plate, and a main transformer, a reactor and a rectifier diode which are arranged on the upper surface of the secondary rectification plate, the secondary rectification plate is arranged on the lower surface of the rectification heat dissipation module, and the rectifier diode is arranged on the side surface of the rectification heat dissipation module.

Drawings

Fig. 1 is a schematic structural view of an inverter welding machine core according to an embodiment of the present invention.

FIG. 2 is a left side view of the inverter welder core of FIG. 1;

FIG. 3 is an isometric view of the inverter welder core of FIG. 1;

FIG. 4 is a top view of the inverter welder core of FIG. 1;

FIG. 5 is a bottom view of the inverter welder core of FIG. 1;

fig. 6 is a schematic circuit diagram of components included in the inverter welder movement of fig. 1.

In the figure, 100, a fixed support; 110. an upper suspension; 120. a mounting frame; 121. installing a rod group; 121a, mounting a rod body; 121b, a connecting screw;

200. a heat dissipating component; 210. an inversion heat dissipation module; 211. a first inverter radiator; 212. a second inverter radiator; 220. a rectification heat dissipation module; 221. a rectifying radiator;

300. an airflow directing assembly; 310. a guide plate;

20. an inversion module; 21. a primary inversion unit; 21a, a primary inversion plate; 21b, a primary inverter tube; 23. a first fixing screw; 22. a secondary inversion unit; 22a, a secondary inverter board; 22b, a secondary inverter tube; 24. a second fixing screw; 25. an insulating plate;

30. a secondary rectification module; 31. a secondary rectifying plate; 31a, a third fixing screw; 32. a main transformer; 33. a reactor; 34. a rectifier diode; 35. and connecting the aluminum plates.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

To facilitate an understanding of the present invention, various embodiments defined by the claims of the present invention will be described more fully hereinafter with reference to the accompanying drawings. While the preferred embodiments of the present invention have been illustrated in the accompanying drawings, it is understood that the same is by way of example only and is not to be taken by way of limitation. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Accordingly, those of ordinary skill in the art will recognize that changes and modifications may be made to the various embodiments described herein without departing from the scope of the present invention, which is defined by the following claims. Moreover, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.

It will be apparent to those skilled in the art that the following descriptions of the various embodiments of the present invention are provided for illustration only and not for the purpose of limiting the invention as defined by the appended claims.

Throughout the description and claims of this specification, the words "comprise" and variations of the words, for example "comprising" and "comprises", mean "including but not limited to", and are not intended to (and do not) exclude other components, integers or steps. Features, integers or characteristics described in conjunction with a particular aspect, embodiment or example of the invention are to be understood to be applicable to any other aspect, embodiment or example described herein unless incompatible therewith.

It is to be understood that the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. The expression "comprising" and/or "may comprise" as used in the present invention is intended to indicate the presence of corresponding functions, operations or elements, and is not intended to limit the presence of one or more functions, operations and/or elements. Furthermore, in the present application, the terms "comprises" and/or "comprising" are intended to indicate the presence of the features, quantities, operations, elements, and components, or combinations thereof, disclosed in the specification. Thus, the terms "comprising" and/or "having" should be understood as presenting additional possibilities for one or more other features, quantities, operations, elements, and components, or combinations thereof.

In the present application, the expression "or" encompasses any and all combinations of the words listed together. For example, "a or B" may comprise a or B, or may comprise both a and B.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected" or "coupled" to another element, it can be directly or indirectly coupled to the other element or intervening elements may also be present.

References herein to "upper", "lower", "left", "right", etc. are merely intended to indicate relative positional relationships, which may change accordingly when the absolute position of the object being described changes.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present specification and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In the following description, the upper and lower directions of the drawing in fig. 1 are taken as the upper and lower positions of the embodiment, the left direction in fig. 1 is taken as the front of the heat dissipation structure of the movement in the embodiment, and the right direction in fig. 1 is taken as the rear of the heat dissipation structure of the movement in the embodiment.

As shown in fig. 1-5, in an embodiment of the present invention, a heat dissipation structure of a core includes a fixing bracket 100, a heat dissipation assembly 200, and an airflow guiding assembly 300. The heat dissipation assembly 200 comprises an inverter heat dissipation module 210 and a rectification heat dissipation module 220, wherein the inverter heat dissipation module 210 and the rectification heat dissipation module 220 are arranged at intervals up and down and are respectively mounted on the fixing bracket 100; the inverter heat dissipation module 210 is configured to fix the inverter module 20 and provide heat dissipation for the inverter module 20, and the rectification heat dissipation module 220 is configured to fix the secondary rectification module 30 and provide heat dissipation for the secondary rectification module 30. The airflow guiding assembly 300 is disposed at an end of the heat dissipating assembly 200 and is used for guiding air to flow through the heat dissipating assembly 200 to reduce the surface temperature of the heat dissipating assembly 200.

The inverter welding machine core has the functions of inversion and rectification, specifically, current is input into the welding machine core after being rectified by an external rectifier bridge, and the required welding current can be output after being inverted by the inverter module 20 and rectified by the secondary rectifier module 30.

In this embodiment, the inverter heat dissipation module 210 and the rectifying heat dissipation module 220 are spaced from each other vertically and can be suspended after being mounted on the fixing bracket 100. Because the inverter heat dissipation module 210 and the rectifier heat dissipation module 220 are suspended at intervals, the airflow guide assembly 300 guides air to fully contact the surface of the heat dissipation assembly 200 when the air flows through the heat dissipation assembly 200 and quickly pass through a gap between the inverter heat dissipation module 210 and the rectifier heat dissipation module 220, so that heat on the surface of the heat dissipation assembly 200 is taken away through heat conduction, the surface temperature of the heat dissipation assembly 200 can be reduced, and when the surface temperature of the heat dissipation assembly 200 is quickly reduced, the temperature of the inverter module 20 and the secondary rectifier module 30 arranged on the surface of the heat dissipation assembly 200 is also directly reduced under the heat conduction action between the inverter module and the secondary rectifier module and the heat dissipation assembly 200.

The airflow guiding assembly 300 has an effect of guiding the airflow direction, and particularly, after a fan is arranged at one end where the airflow guiding assembly 300 is installed, the airflow can be accelerated when the fan is started, and the accelerated airflow can quickly reduce the surface temperature of the heat dissipation assembly 200 when flowing through the heat dissipation assembly 200, so that the heat dissipation effect is better. The airflow guiding assembly 300 can also resist external dust while guiding air to cool the heat dissipation assembly 200, so as to prevent the dust from contacting the inverter module 20 and the secondary rectification module 30, and ensure normal operation of the movement.

The heat dissipation effect of the embodiment is good, the movement can be ensured to run well under the high-power state, and the service life is prolonged; the component structure is uncomplicated, and required part is few, reduced material cost low, and the structure is simply favorable to reducing the installation degree of difficulty, has promoted installation operating efficiency.

Under some special use conditions, two inversions are required, so that the inversion module 20 includes a primary inversion unit 21 and a secondary inversion unit 22, and the current is output after being sequentially subjected to the primary inversion of the primary inversion unit 21, the secondary rectification of the secondary rectification module 30, and the secondary inversion of the secondary inversion unit 22. Therefore, in order to accommodate the installation of the primary and

secondary inversion units

21 and 22, referring to fig. 3, in some embodiments, the inversion heat dissipation module 210 includes a first inversion heat sink 211 and a second inversion heat sink 212, and the first inversion heat sink 211 and the second inversion heat sink 212 are arranged side by side in a horizontal direction and are respectively used for fixing the primary and

secondary inversion units

21 and 22 in the inversion module 20.

Specifically, the first inverter radiator 211 and the second inverter radiator 212 arranged side by side in the horizontal direction may respectively fix the primary inverter unit 21 and the secondary inverter unit 22 in the inverter module 20 and respectively provide heat dissipation for the same, and the area division between the components is more definite, and the arrangement and the disassembly are convenient.

Referring to fig. 1, in some embodiments, the rectifying heat dissipating module 220 includes a rectifying heat sink 221 disposed below the inverter heat dissipating module 210. The rectifying heat sink 221 may provide better heat dissipation for the secondary rectifying module 30.

Referring to fig. 1 and 3, in some embodiments, the fixing bracket 100 includes:

an upper suspension 110;

and a mounting bracket 120 disposed below the upper suspension 110 and connected to the upper suspension 110, for fixing the inverter heat dissipation module 210 and the rectifier heat dissipation module 220.

Specifically, the inverter heat dissipation module 210 and the rectifying heat dissipation module 220 can be fixed to the mounting frame 120 below the upper suspension 110, so that the inverter heat dissipation module 210 and the rectifying heat dissipation module 220 can be firmly mounted.

Referring to fig. 1 and 3, in some embodiments, the mounting bracket 120 includes a mounting bar set 121, the mounting bar set 121 is connected to the upper suspension 110 and extends downward, and the inverter heat dissipation module 210 and the rectification heat dissipation module 220 are respectively fixed to the mounting bar set 121 by fasteners.

Specifically, fasteners such as screws can be operated to pass through the mounting rod set 121 and screw into the inverter heat dissipation module 210 and the rectifier heat dissipation module 220, respectively, so as to mount the inverter heat dissipation module 210 and the rectifier heat dissipation module 220 to the mounting rod set 121. Further, a plurality of connection screws 121b may be disposed in the extending direction of the mounting rod group 121, and the fixing of the plurality of connection screws 121b at the same time may enhance the mounting firmness.

Referring to fig. 1 and 2, in some embodiments, the mounting bar group 121 includes at least two mounting bars 121a, which are disposed from front to back and each of which has an upper end connected to the upper suspension 110.

More than two mounting rods 121a can provide more mounting positions, and an operator can freely select different mounting rods 121a to correspondingly mount the inverter heat dissipation module 210 and the rectifier heat dissipation module 220; the inverter heat sink module 210 and the rectifier heat sink module 220 are respectively fixed to the plurality of mounting rods 121a to further increase the mounting stability.

In this embodiment, the setting mode of the installation rod body 121a is comparatively simple and easy, and required part is few, the material cost is reduced and low, and simple to operate has promoted operating efficiency.

It will be appreciated that in other embodiments, other mounting brackets having complex configurations may be used, and are not limited thereto.

In some embodiments, two of the upper suspension 110 and the mounting bracket 120 are symmetrically disposed on two sides of the inverse heat dissipation module 210 and the rectifying heat dissipation module 220, and the inverse heat dissipation module 210 and the rectifying heat dissipation module 220 are fixed from two sides, respectively.

In this embodiment, the inverter heat dissipation module 210 and the rectifying heat dissipation module 220 can be fixed from two sides, so that the overall structure is firmer and more stable, and the use safety is good.

In some embodiments, the airflow directing assembly 300 is disposed at the front end and/or the rear end of the heat sink assembly 200, such as shown in fig. 1 when the airflow directing assembly 300 is disposed at the rear end of the heat sink assembly 200.

Specifically, when the airflow guiding assembly 300 is disposed at the front end and/or the rear end of the heat dissipating assembly 200, the airflow guiding assembly can guide the air to flow through the heat dissipating assembly 200 and rapidly pass through the gap between the inverter heat dissipating module 210 and the rectifier heat dissipating module 220, so as to take away the heat on the surface of the heat dissipating assembly 200 through the heat conduction effect, and reduce the surface temperature of the heat dissipating assembly 200, and when the surface temperature of the heat dissipating assembly 200 rapidly decreases, the temperature of the inverter module 20 and the secondary rectifier module 30 disposed on the surface of the heat dissipating assembly 200 directly decreases under the heat conduction effect with the heat dissipating assembly 200, so that the heat dissipating effect is good.

Further, the airflow guide assembly 300 includes two guide plates 310, and the plate surfaces of the two guide plates 310 are opposite to each other, so that a channel through which air passes is formed between the two guide plates 310.

The guide plate 310 is convenient to mount and dismount, can be rapidly assembled and dismounted for maintenance as required, and is flexible in use mode. Specifically, the guiding plate 310 may be mounted on the mounting frame 120 of the fixing bracket 100, or may be directly connected to an adjacent heat sink, which is not limited herein. Further, the material of the guide plate 310 is epoxy resin. The epoxy resin has good insulating property, and can prevent the guide plate 310 from conducting electric leakage.

In some embodiments, the heat sink used above is formed by stacking a plurality of heat dissipation plates at intervals. The radiator formed by stacking the plurality of radiating plates at intervals has a large radiating surface area, and the interval between the radiating plates can be used for flowing air to pass through, so that the contact area with the air can be increased, the air throughput in unit time is increased, and the radiating effect is better.

In another embodiment of the utility model, an contravariant welding machine core is provided, including contravariant module 20, secondary rectifier module 30 and foretell core heat radiation structure, contravariant module 20 is fixed in contravariant heat radiation module 210, secondary rectifier module 30 is fixed in rectification heat radiation module 220, contravariant module 20 with secondary rectifier module 30 electricity is connected.

Referring to fig. 3, in some embodiments, the inverter module 20 includes a primary inverter unit 21 and a secondary inverter unit 22, the inverter heat dissipation module 210 includes a first inverter radiator 211 and a second inverter radiator 212 arranged side by side in a horizontal direction, and the primary inverter unit 21 and the secondary inverter unit 22 are respectively and correspondingly disposed on the first inverter radiator 211 and the second inverter radiator 212.

In this embodiment, the first inverter radiator 211 and the second inverter radiator 212 arranged side by side in the horizontal direction may respectively fix the primary inverter unit 21 and the secondary inverter unit 22 in the inverter module 20 and respectively provide heat dissipation for the same, and the area division between each component is more clear, and the arrangement and the disassembly are convenient.

Referring to fig. 3, in some embodiments, the primary inverter unit 21 includes a primary inverter board 21a and a primary inverter tube 21b connected to each other, the primary inverter board 21a is disposed on an upper surface of the first inverter radiator 211, and the primary inverter tube 21b is disposed on a side surface of the first inverter radiator 211;

the secondary inverter unit 22 includes a secondary inverter board 22a and a secondary inverter tube 22b connected to each other, the secondary inverter board 22a is disposed on the upper surface of the second inverter radiator 212, and the secondary inverter tube 22b is disposed on the side surface of the second inverter radiator 212.

The primary inverter tube 21b and the secondary inverter tube 22b both have an inverter function, wherein the primary inverter tube 21b can invert the current input after rectification by the external rectifier bridge, the secondary inverter tube 22b can invert the current for the second time, and the current signal obtained after multiple inversions is more stable. The inverter Transistor may be, but not limited to, an IGBT (Insulated Gate Bipolar Transistor).

In the embodiment, the inverter board and the inverter tube are in contact with the surface of the corresponding inverter radiator, so that the area for conducting and radiating heat can be increased, the inverter radiator can be fully utilized to radiate heat quickly,

further, the primary inverter board 21a may be fixed to the upper surface of the first inverter radiator 211 by four first fixing screws 23 distributed on the surface thereof, the secondary inverter board 22a may be fixed to the upper surface of the second inverter radiator 212 by four second fixing screws 24 distributed on the surface thereof, and the primary inverter tube 21b and the secondary inverter tube 22b may be tightly attached to the side surfaces of the corresponding inverter radiators by screws and pressing sheets. The inverter board and the inverter tube are firmly connected in the surface of the inverter radiator in an installation mode, the stability is high, and looseness cannot easily occur. Furthermore, an insulating plate 25 is disposed between the inverter board and the inverter heat sink to enhance insulation and prevent leakage. It is noted that the specific material of the insulating plate 25 may be selected from, but not limited to, epoxy resin.

Referring to fig. 1 to 3, in some embodiments, the secondary rectification module 30 includes a secondary rectification plate 31, and a main transformer 32, a reactor 33, and a rectifier diode 34 disposed on an upper surface of the secondary rectification plate 31, the secondary rectification plate 31 is disposed on a lower surface of the rectification heat dissipation module 220, and the rectifier diode 34 is disposed on a side surface of the rectification heat dissipation module 220.

In this embodiment, the secondary rectifying plate 31 and the rectifying diode 34 are both in contact with the surface of the rectifying and heat dissipating module 220, so as to increase the area of heat conduction and heat dissipation, and make full use of the rectifying and heat dissipating module 220 to dissipate heat quickly. Further, the secondary rectifying plate 31 may be fixed to the lower surface of the rectifying and heat dissipating module 220 by four third fixing screws 31a distributed on the surface thereof, and the rectifying diode 34 may be tightly attached to the side surface of the rectifying and heat dissipating module 220 by screws and pressing sheets. The secondary rectifying plate 31 and the rectifying diode 34 are firmly connected in the surface mounting mode of the rectifying and heat dissipating module 220, so that the stability is strong, and looseness cannot easily occur.

The specific connection mode and the rectification inversion principle are as follows: the secondary winding of the main transformer 32 on the surface of the secondary rectifying plate 31 is connected with a rectifying diode 34, the center tap of the main transformer 32 is connected with a reactor 33, the primary winding of the main transformer 32 is connected with the primary inverter plate 21a, and the positive electrode output end of the rectifying diode 34 on the surface of the secondary rectifying plate 31 is connected with the input end of the secondary inverter plate 22 a. Referring to fig. 6, an AC input voltage (AC220V) is rectified and filtered by an external rectifier bridge, reaches the primary inverter board 21a, is subjected to primary inversion by the primary inverter tube 21b, is stepped down by the isolation of the main transformer 32, reaches the secondary rectifier board 31, is rectified by the secondary rectifier tube, reaches the secondary inverter board 22a, and is subjected to secondary inversion by the secondary inverter tube 22 b. The final current can be output after being input to the reactor 33 and filtered by the reactor 33.

In some embodiments, since the rectifying and heat dissipating module 220 and the second inverter heat sink 212 have better conductivity, the connecting aluminum plate 35 may be disposed between the rectifying and heat dissipating module 220 and the second inverter heat sink 212, and the positive output of the rectifying diode 34 of the secondary rectifying plate 31 may be connected to the input end of the secondary inverter plate 22a sequentially through the rectifying and heat dissipating module 220, the connecting aluminum plate 35, and the second inverter heat sink 212.

In the above description, although it is possible to describe each element of the present invention using expressions such as "first" and "second", they are not intended to limit the corresponding elements. For example, the above expressions are not intended to limit the order or importance of the corresponding elements. The above expressions are used to distinguish one element from another.

The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular references include plural references unless there is a significant difference in context, scheme or the like between them.

The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims.

Those skilled in the art will appreciate that various features of the above-described embodiments may be omitted, added, or combined in any way, and for the sake of brevity, all possible combinations of features of the above-described embodiments will not be described, however, so long as there is no contradiction between these combinations of features, and simple variations and structural variations which are adaptive and functional to the prior art, which can occur to those skilled in the art, should be considered within the scope of this description.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that while the invention has been shown and described with reference to various embodiments, it will be understood by those skilled in the art that various changes and modifications in form and detail may be made without departing from the spirit of the invention and these are within the scope of the invention as defined by the appended claims. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A core heat dissipation structure, comprising:

fixing a bracket;

2. The movement heat dissipation structure according to claim 1, wherein the inversion heat dissipation module includes a first inversion heat sink and a second inversion heat sink, and the first inversion heat sink and the second inversion heat sink are arranged side by side in a horizontal direction and are respectively used for fixing a primary inversion unit and a secondary inversion unit in the inversion module.

3. The movement heat dissipation structure according to claim 1, wherein the fixing bracket includes:

an upper suspension;

4. The movement heat dissipation structure of claim 3, wherein the mounting bracket includes a mounting rod set, the mounting rod set is connected to the upper suspension and extends downward, and the inverter heat dissipation module and the rectifier heat dissipation module are respectively fixed to the mounting rod set through fasteners.

5. The movement heat dissipation structure of claim 4, wherein the mounting rod set includes at least two mounting rods, which are distributed from front to back and have upper ends connected to the upper suspension.

6. The movement heat dissipation structure of claim 1, wherein the airflow guide component is provided at a front end and/or a rear end of the heat dissipation component; the airflow guide assembly comprises two guide plates, the plate surfaces of the two guide plates are opposite, and therefore a channel for air to pass through is formed between the two guide plates.

7. The utility model provides an inverter welding machine core which characterized in that: the heat dissipation structure comprises an inversion module, a secondary rectification module and the movement heat dissipation structure as set forth in any one of claims 1-6, wherein the inversion module is fixed on the inversion heat dissipation module, the secondary rectification module is fixed on the rectification heat dissipation module, and the inversion module is electrically connected with the secondary rectification module.

8. The machine core of the inverter welding machine according to claim 7, wherein the inverter module comprises a primary inverter unit and a secondary inverter unit, the inverter heat dissipation module comprises a first inverter radiator and a second inverter radiator which are arranged side by side in the horizontal direction, and the primary inverter unit and the secondary inverter unit are respectively and correspondingly arranged on the first inverter radiator and the second inverter radiator.

9. The inverter welding machine core according to claim 8, wherein the primary inverter unit comprises a primary inverter board and a primary inverter tube which are connected, the primary inverter board is arranged on the upper surface of the first inverter radiator, and the primary inverter tube is arranged on the side surface of the first inverter radiator;

10. The inverter welding machine core according to claim 7, wherein the secondary rectifying module comprises a secondary rectifying plate, and a main transformer, a reactor and a rectifying diode which are arranged on the upper surface of the secondary rectifying plate, the secondary rectifying plate is arranged on the lower surface of the rectifying and heat dissipating module, and the rectifying diode is arranged on the side surface of the rectifying and heat dissipating module.