CN215545694U

CN215545694U - Portable inverter welding machine heat radiation structure

Info

Publication number: CN215545694U
Application number: CN202121230243.6U
Authority: CN
Inventors: 曹晓龙; 谢炳兴
Original assignee: Shenzhen Tribet Technology Co ltd
Current assignee: Shenzhen Tribet Technology Co ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2022-01-18
Anticipated expiration: 2031-06-02

Abstract

The utility model discloses a portable inverter welding machine heat dissipation structure, which comprises a case and a heat dissipation assembly, wherein the case is provided with a heat dissipation plate; the heat dissipation assembly comprises mounting plates and heat dissipation fins, the middle part of the case is oppositely provided with at least two mounting plates along the vertical direction, and the heat dissipation fins are arranged on the right opposite side surfaces of the two mounting plates; an air extractor is arranged on one side surface of the case, at least one air inlet is arranged on the other side surface of the case, and the heat dissipation channel is communicated with the air inlet and the air extractor; still include spring radiator, spring radiator includes spring heat dissipation main part and fixed part, and spring heat dissipation main part comprises a plurality of annular fin end to end in proper order, forms annular heat dissipation district between the adjacent annular fin, and spring heat dissipation main part is just to the air intake setting. This scheme is through setting up the spring radiator alone in air intake position, further increased on radiator unit's basis with the effective heat radiating area of air, improve inside radiating efficiency to guarantee the stable work of welding machine.

Description

Portable inverter welding machine heat radiation structure

Technical Field

The utility model relates to a portable inverter welding machine, in particular to a heat dissipation structure of the portable inverter welding machine.

Background

The inverter welding machine is a welding machine adopting an arc welding power supply of an inverter technology. "inversion" and "rectification" are two opposite concepts, rectification is the process of converting ac power to dc power, and inversion is the process of converting dc power to ac power.

The working process of the inverter welding machine is that three-phase or single-phase 50Hz power frequency alternating current is rectified and filtered to obtain smoother direct current, an inverter circuit consisting of IGBT or field effect tube converts the direct current into alternating current of 15-100 kHz, the alternating current is reduced by an intermediate frequency main transformer, and then the alternating current is rectified and filtered again to obtain stable direct current output welding current (or alternating current with required frequency is output by inversion again). The control circuit of the inverter welding machine comprises a given circuit, a driving circuit and the like, the complete machine circulation control is realized by processing the feedback of voltage and current signals, and the control technology taking Pulse Width Modulation (PWM) as a core is adopted, so that the constant current characteristic of rapid pulse width modulation and the excellent welding and cutting process effect are obtained.

Contravariant welding machine can generate heat in the during operation in a large number, can last normal work in order to guarantee the contravariant welding machine, and current contravariant welding machine adopts great outside dimension in order to strengthen the radiating effect, and inner structure is complicated simultaneously, and the line sequence mixes in disorder, and is extremely inconvenient during this kind of welding machine construction, and the potential safety hazard is many, and it is high to maintain manufacturing cost.

The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a heat dissipation structure for a portable inverter welding machine.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a portable inverter welding machine heat dissipation structure comprises a case and a heat dissipation assembly arranged in the case and connected with a PCB (printed circuit board); the heat dissipation assembly comprises mounting plates and heat dissipation fins, wherein the middle part of the case is oppositely provided with at least two mounting plates along the vertical direction, a plurality of heat dissipation fins are arranged on the right opposite side surfaces of the two mounting plates, the heat dissipation fins are arranged on the mounting plates at intervals along the horizontal direction, and adjacent heat dissipation fins and the mounting plates mutually enclose to form a plurality of heat dissipation channels; an air extractor is arranged on one side surface of the case, at least one air inlet is arranged on the other side surface of the case, and the heat dissipation channel is communicated with the air inlet and the air extractor, so that outside air enters the heat dissipation channel from the air inlet and is exhausted through the air extractor;

still include spring radiator, spring radiator includes spring heat dissipation main part to and connect in the fixed part at spring heat dissipation main part both ends, spring heat dissipation main part comprises a plurality of annular fin end to end in proper order, forms annular heat dissipation district between the adjacent annular fin, the other end of fixed part is connected mounting panel and/or quick-witted case, spring heat dissipation main part is just right the air intake sets up.

Further, the machine case comprises a machine case and a machine cover, wherein the machine cover covers the machine case to form the machine case.

Further, the casing comprises a front plate, a rear plate and a bottom plate, wherein the front plate and the rear plate are respectively connected to the front end and the rear end of the bottom plate; the machine cover comprises a cover plate and side plates arranged on two sides of the cover plate, and the bottom plate, the front plate, the rear plate, the cover plate and the two side plates are connected in a matched mode to form the machine case.

Furthermore, a voltage display meter for displaying working voltage, a current display meter for displaying working current and a quick socket for plugging a power line for charging and discharging are mounted on the case.

Furthermore, an air extractor mounting hole is formed in the middle of the rear plate and is opposite to the heat dissipation channel, and the air extractor is mounted in the air extractor mounting hole.

Further, the top of the case is provided with an arched handle, the handle comprises a holding part and handle connecting parts arranged at two ends of the holding part, one end of each handle connecting part is fixedly arranged on the case, and the other end of each handle connecting part is fixedly connected with the holding part.

Further, the PCB is arranged on the top of the mounting plate, and a power device is integrated on the PCB.

Further, the mounting panel is the installation stand, set up threaded hole on the installation stand, the fin pass through screw thread rigid coupling in on the threaded hole of installation stand.

Compared with the prior art, the utility model has the beneficial effects that: the utility model realizes the air-cooled heat dissipation in the case by arranging at least two mounting plates in the middle of the case along the vertical direction, arranging a plurality of radiating fins on the right opposite side surfaces of the two mounting plates, arranging the radiating fins on the mounting plates along the horizontal direction at intervals, and mutually enclosing the adjacent radiating fins and the mounting plates to form a plurality of heat dissipation channels, and extracting external air through the air extractor to pass through the heat dissipation channels between the radiating fins; in addition, the spring type radiator is arranged at the position of the air inlet, so that the effective radiating area of the air is further increased on the basis of the radiating assembly, the internal radiating efficiency is improved, and the stable work of the welding machine is ensured.

The utility model is further described below with reference to the accompanying drawings and specific embodiments.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is an assembly view of a heat dissipation structure of a portable inverter welding machine according to an embodiment of the present invention;

FIG. 2 is an exploded view of an embodiment of a heat dissipation structure of a portable inverter welding machine according to the present invention;

FIG. 3 is a schematic structural diagram of a spring-type heat sink of the heat dissipation structure of the portable inverter welding machine according to the present invention;

fig. 4 is a rear view of a heat dissipation structure of a portable inverter welding machine according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be connected or detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. 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.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., 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 utility model. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.

Referring to fig. 1-4, the present invention provides a heat dissipation structure of a portable inverter welding machine, which includes a case, and a heat dissipation assembly 30 disposed inside the case and connected to a PCB 40; the heat dissipation assembly 30 comprises mounting plates 33 and heat dissipation fins 31, at least two mounting plates 33 are arranged in the middle of the chassis along the vertical direction, a plurality of heat dissipation fins 31 are arranged on the right opposite side surfaces of the two mounting plates 33, the heat dissipation fins 31 are arranged on the mounting plates 33 along the horizontal direction at intervals, and a plurality of heat dissipation channels 32 are formed by mutually enclosing the adjacent heat dissipation fins 31 and the mounting plates 33; an air extractor 50 is disposed on one side of the chassis, at least one air inlet 13 is disposed on the other side of the chassis, and the heat dissipation channel 32 is communicated with the air inlet 13 and the air extractor 50, so that the external air enters the heat dissipation channel 32 from the air inlet 13 and is exhausted through the air extractor 50. When the power device is used, the power device on the PCB 40 works to generate heat, the heat is transferred to the radiating fins 31 through the mounting plate 33, and external air is extracted through the air extractor 50 and passes through the radiating channels 32 between the radiating fins 31, so that air cooling and radiating in the case are realized; in addition, a plurality of radiating channels 32 arranged side by side are formed by a plurality of radiating fins 31 arranged side by side, so that the effective radiating area of the radiating fins 31 and the outside air is increased, the radiating efficiency of the PCB 40 in the case can be effectively improved, and the stable work of the welding machine is ensured.

Referring to fig. 2 and 3, in this embodiment, still include spring radiator 60, spring radiator 60 includes spring heat dissipation main part 62 to and connect in the fixed part 61 at spring heat dissipation main part 62 both ends, spring heat dissipation main part 62 comprises a plurality of annular fins 62a end to end in proper order, forms annular heat dissipation area 62b between the adjacent annular fin 62a, the other end of fixed part 61 is connected mounting panel 33 and/or quick-witted case, spring heat dissipation main part 62 is just right air intake 13 sets up. According to the scheme, the spring type radiator 60 is independently arranged at the position of the air inlet 13, the effective heat dissipation area of the radiator assembly 30 and air is further increased, the internal heat dissipation efficiency is improved, and stable work of a welding machine is guaranteed.

Referring to fig. 1 and 2, in an embodiment, the housing includes a housing 12 and a cover 11, and the cover 11 covers the housing 12 to form the housing. The housing 12 includes a front plate 121, a rear plate 122, and a bottom plate 123, the front plate 121 and the rear plate 122 being respectively connected to a front end and a rear end of the bottom plate 123; the cover 11 includes a cover plate 111 and side plates 112 disposed on two sides of the cover plate 111, a bottom plate 123, a front plate 121, a rear plate 122, the cover plate 111 and the two side plates 112 are cooperatively connected to form a chassis, wherein the chassis 12 bears the weight of the whole welding machine, and the cover 11 is used for covering the internal components to protect the user and also protect the welding machine itself. Further, the lower surface of the bottom plate 123 is provided with rubber supporting legs for supporting the case and preventing skidding.

In an embodiment, install the voltage display table that is used for showing operating voltage, be used for showing operating current's current display table and be used for pegging graft the power cord and carry out the quick socket that charges and discharges on the quick-operation table of machine case, the welding machine function is abundant, easily user operation, and the connecting piece can the quick socket of lug connection, and is simple direct.

In an embodiment, an air extractor installation hole is disposed in the middle of the back plate 122, the air extractor installation hole faces the heat dissipation channel 32, the air extractor 50 is installed in the air extractor installation hole, and the air extractor installation hole faces the heat dissipation channel 32, that is, the air extractor 50 faces the heat dissipation channel 32, so that most of the air flow of the air extractor 50 during operation can be ensured to flow through the heat dissipation channel 32, so as to ensure the heat dissipation effect. In another embodiment, the rear plate 122 may also be provided with a plurality of air extractor mounting holes at the same time, and a plurality of air extractors 50 are correspondingly mounted to ensure that the airflow is sufficient for heat dissipation.

Referring to fig. 1 and 4, in an embodiment, an arched handle 20 is disposed on the top of the chassis, the handle 20 includes a holding portion 21 and handle connecting portions 22 disposed at two ends of the holding portion 21, one end of the handle connecting portion 22 is fixed on the chassis, and the other end is fixedly connected to the holding portion 21, and the holding portion 21 facilitates a user to carry the welding machine by hand, so that the welding machine is more portable and more mobile.

In an embodiment, the PCB 40 is disposed on the top of the mounting plate 33, the power device is integrated on the PCB 40, the mounting plate 33 is disposed on the top of the chassis, and the PCB 40 is in direct contact with the mounting plate 33 to conduct heat, so that heat is transferred to the heat sink 31 with a larger heat dissipation area to dissipate heat, thereby improving heat dissipation efficiency and ensuring effective dissipation of heat on the PCB 40.

In an embodiment, the mounting plate 33 is a mounting column, a threaded hole is formed in the mounting column, the cooling fin 31 is fixedly connected to the threaded hole of the mounting column through a screw thread, the mounting column is simpler in structure, the manufacturing cost is reduced on the premise that the structural stability is guaranteed, and the economic benefit of an enterprise is improved.

This scheme is through being provided with two at least mounting panels 33 along vertical direction relatively in quick-witted case middle part, a plurality of fin 31 sets up in two mounting panels 33 just relative sides, fin 31 sets up in mounting panel 33 along the horizontal direction interval, and adjacent fin 31 and mounting panel 33 enclose each other and close and form a plurality of radiating passage 32, and draw outside air through air extractor 50 and pass radiating passage 32 between fin 31, realize the forced air cooling heat dissipation of quick-witted incasement portion, improve inside radiating efficiency, in order to guarantee the steady operation of welding machine.

While the utility model has been described with reference to specific embodiments, the utility model is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the utility model. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A portable inverter welding machine heat radiation structure is characterized by comprising a case and a heat radiation component which is arranged in the case and connected with a PCB (printed circuit board); the heat dissipation assembly comprises mounting plates and heat dissipation fins, wherein the middle part of the case is oppositely provided with at least two mounting plates along the vertical direction, a plurality of heat dissipation fins are arranged on the right opposite side surfaces of the two mounting plates, the heat dissipation fins are arranged on the mounting plates at intervals along the horizontal direction, and adjacent heat dissipation fins and the mounting plates mutually enclose to form a plurality of heat dissipation channels; an air extractor is arranged on one side surface of the case, at least one air inlet is arranged on the other side surface of the case, and the heat dissipation channel is communicated with the air inlet and the air extractor, so that outside air enters the heat dissipation channel from the air inlet and is exhausted through the air extractor;

2. The heat dissipation structure of the portable inverter welding machine as claimed in claim 1, wherein the case comprises a case and a cover, and the cover covers the case to form the case.

3. The heat dissipation structure of the portable inverter welding machine according to claim 2, wherein the casing comprises a front plate, a rear plate and a bottom plate, and the front plate and the rear plate are respectively connected to the front end and the rear end of the bottom plate; the machine cover comprises a cover plate and side plates arranged on two sides of the cover plate, and the bottom plate, the front plate, the rear plate, the cover plate and the two side plates are connected in a matched mode to form the machine case.

4. The heat dissipation structure of the portable inverter welding machine according to claim 3, wherein a voltage display meter for displaying operating voltage, a current display meter for displaying operating current, and a quick socket for plugging a power line for charging and discharging are installed on the case.

5. The heat dissipation structure of the portable inverter welding machine as claimed in claim 3, wherein an air extractor installation hole is formed in the middle of the back plate, the air extractor installation hole faces the heat dissipation channel, and the air extractor is installed in the air extractor installation hole.

6. The heat dissipation structure of the portable inverter welding machine as claimed in claim 1, wherein the top of the casing is provided with an arcuate handle, the handle includes a holding portion and handle connecting portions disposed at two ends of the holding portion, one end of the handle connecting portion is fixed to the casing, and the other end is fixed to the holding portion.

7. The heat dissipation structure of the portable inverter welding machine as claimed in claim 1, wherein the PCB is disposed on top of the mounting plate, and the power device is integrated on the PCB.

8. The heat dissipation structure of the portable inverter welding machine according to claim 6, wherein the mounting plate is a mounting pillar, a threaded hole is formed in the mounting pillar, and the heat dissipation plate is fixedly connected to the threaded hole of the mounting pillar through a screw thread.