CN211387285U

CN211387285U - Brazing tool for IGBT radiator

Info

Publication number: CN211387285U
Application number: CN201922139977.2U
Authority: CN
Inventors: 沈士凯; 齐猛; 张麒麟; 桑鲁斌; 杨宝
Original assignee: Shandong Haili Tongchuang Cooling Technology Development Co ltd
Current assignee: Shandong Xingneng Thermal Energy Technology Co ltd
Priority date: 2019-12-02
Filing date: 2019-12-02
Publication date: 2020-09-01
Anticipated expiration: 2029-12-02

Abstract

The utility model discloses a frock of brazing for IGBT radiator belongs to the radiator frock, the utility model discloses the technical problem who solves is how to guarantee the welding quality of IGBT radiator among the wind power system, and it is big to prevent effectively that the back deflection that welds simultaneously, and the technical scheme of adoption is: the structure of the device comprises a chassis, two limiting devices are symmetrically arranged at two ends of the chassis, each limiting device comprises a supporting plate and at least one locking bolt I, a limiting pipe is arranged on the inner side of each supporting plate, the limiting pipes are arranged in parallel with the supporting plates, the upper side surfaces of the limiting pipes are flush with the upper side surfaces of the supporting plates, the locking bolts I longitudinally penetrate through the supporting plates and extend to the side surface of one side, close to the supporting plates, of each limiting pipe, and the locking bolts I are in threaded connection with the supporting plates; a connecting rod is arranged above the chassis, the connecting rod and the chassis are arranged in parallel, a gap for placing a radiator is formed between the connecting rod and the chassis, a backing plate is arranged on the lower side face of the middle position of the connecting rod, and the backing plate is in threaded connection with the connecting rod through a locking bolt II.

Description

Brazing tool for IGBT radiator

Technical Field

The utility model relates to a radiator frock, specifically speaking are a frock of brazing for IGBT radiator.

Background

The welding frock that current IGBT radiator brazed and used is simpler and easy, if: the U-shaped tool formed by welding the square pipes and the double screw matched square pipe are manufactured through fastening and locking the tool through bolts and the like. The tool is simple, the welding quality caused by nonuniform heating in the welding process cannot be controlled, and the yield is low. In addition, the deformation phenomenon in the product welding process cannot be controlled by the tools, so that the subsequent products cannot be subjected to finish machining and surface treatment and cannot be used. Therefore, several tools used in the prior art cannot meet the welding quality and the qualification rate of finished products. Therefore, how to ensure the welding quality of the IGBT radiator in the wind power system and effectively prevent the large deformation after welding is the problem which is continuously solved by the prior art.

Patent document CN106077866A discloses a device for condenser tube mounting panel is brazed, the device include the panel beating body, fix location frock, the frock of brazing on the panel beating body, the device still include with the track unit that the frock of brazing is connected, be used for the drive to braze the motor that the frock removed and be used for the control motor and the induction control unit who brazes frock work, when brazing, the condenser tube and the mounting panel of waiting to braze are fixed to the location frock, and the induction control unit response needs the position of brazing, then the control motor drive frock of brazing moves along the track unit, and simultaneously, the flame size and the brazing time of the frock of brazing of induction control unit control are until accomplishing the operation of brazing. The technical scheme is suitable for brazing of the cooling water pipe, and the welding quality of the IGBT radiator in the wind power system cannot be guaranteed.

Disclosure of Invention

The technical task of the utility model is to provide a frock of brazing for IGBT radiator solves the welding quality who how to guarantee among the wind power system IGBT radiator, effectively prevents the big problem of welding back deflection simultaneously.

The technical task of the utility model is realized according to the following mode, a brazing frock for IGBT radiator, including the chassis, the both ends symmetry of chassis is provided with two stop devices, stop device includes backup pad and at least one locking bolt I, the inboard of backup pad is provided with spacing pipe, spacing pipe and backup pad parallel arrangement and the upper flank of spacing pipe are parallel and level with the upper flank of backup pad, locking bolt I vertically runs through the backup pad and extends to one side of spacing pipe near the backup pad and locking bolt I and backup pad threaded connection;

a connecting rod is arranged above the chassis, the connecting rod and the chassis are arranged in parallel, a gap for placing a radiator is formed between the connecting rod and the chassis, a backing plate is arranged on the lower side face of the middle position of the connecting rod, and the backing plate is in threaded connection with the connecting rod through a locking bolt II.

Preferably, two baffles are symmetrically arranged on the lower side surfaces of the two ends of the link rod, the baffles are positioned on the upper side surface of the support plate, and the link rod, the baffles and the support plate are fixedly connected through fastening bolts sequentially from top to bottom.

Preferably, grooves are symmetrically arranged at two ends of the base plate, are positioned on the inner side of the limiting pipe, and are used for aligning with welding seams of the end head of the radiator and the welding surface of the body.

Preferably, the width of the baffle is larger than the distance between the outer side face of the supporting plate and the groove, and the shielding of the baffle on the welding line is guaranteed.

Preferably, a plurality of heat dissipation holes are arranged at intervals on the chassis, and the heat dissipation holes are circular.

Preferably, the locking bolt II is provided with a locking nut, the locking nut is in threaded connection with the locking bolt II, and the locking nut is located on the upper side face of the link rod.

Preferably, the limiting pipe is a square pipe, the supporting plate is a stainless steel pipe, the connecting rod is a square pipe, the chassis is a hot-rolled channel steel, and the baffle is a steel plate.

The utility model discloses a frock of brazing for IGBT radiator has following advantage:

the chassis uses hot-rolled channel steel as a tooling chassis, the contact surface of the hot-rolled channel steel and a product is milled to be flat and smooth, and heat dissipation holes are formed in the whole surface of the tooling chassis, so that the heat absorption capacity of the base is reduced;

the baffle plates shield the end heads at the two ends of the radiator through the steel plates, so that the heat radiation received by the end heads at the two ends of the radiator is reduced, the local overhigh temperature of the end heads of the radiator is prevented, the brazing filler metal is prevented from being overheated and lost, meanwhile, the baffle plates can shield welding seams, and the quality problems of slag inclusion, section welding and the like caused by the pollution of foreign matters adhered to a brazing furnace heat retaining curtain are avoided, and the welding quality is influenced;

the locking bolt II is matched with the backing plate for use, so that the bending deformation of the product can be prevented, the control area of the backing plate can be increased, the damage of the top of the bolt to the surface of the product can be prevented, and the bending deformation after the radiator is welded is reduced;

the connecting rod supports the locking bolt II left and right and also plays a role in connecting the support plate, so that the support plate is prevented from deforming when the locking bolt I is screwed and stressed and the brazing is carried out at high temperature, the size of an upper opening is increased, and the welding quality is influenced;

the limiting pipe can be used as a guide plate when the locking bolt I is screwed, stress points can be balanced, and the end face stress of the radiator is uniform, so that the welding quality is guaranteed, the processing defects can be reduced due to plane contact, the surface processing amount of a product is reduced, the portability, the structural stability and the heat absorption amount of the device can be guaranteed by using the square pipe, and the cost is effectively reduced.

The utility model has the characteristics of reasonable in design, simple structure, easily processing, small, convenient to use, a thing is multi-purpose etc, therefore, has fine popularization and use value.

Drawings

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

FIG. 1 is a schematic structural diagram of a brazing tool for an IGBT radiator;

FIG. 2 is a view taken along line A of FIG. 1;

fig. 3 is a view from the direction B of fig. 1.

In the figure: 1. locking bolt I, 2, backup pad, 3, spacing pipe, 4, recess, 5, chassis, 6, baffle, 7, nut, 8, locking bolt II, 9, link rod, 10, backing plate, 11, louvre, 12, radiator, 13, fastening bolt.

Detailed Description

The brazing tool for the IGBT radiator according to the present invention is described in detail below with reference to the drawings and the specific embodiments.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and for simplification of description. And are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in fig. 1, 2 and 3, the brazing tool for the IGBT radiator of the present invention structurally includes a chassis 5, two limiting devices are symmetrically installed at two ends of the chassis 5, each limiting device includes a supporting plate 2 and three parallel locking bolts I1, a limiting tube 3 is installed inside the supporting plate 2, the limiting tube 3 is parallel to the supporting plate 2, the upper side surface of the limiting tube 3 is flush with the upper side surface of the supporting plate 2, the locking bolt I1 longitudinally penetrates through the supporting plate 2 and extends to the side surface of one side of the limiting tube 3 close to the supporting plate 2, and the locking bolt I1 is in threaded connection with the supporting plate 2; a link rod 9 is installed above the chassis 5, the link rod 9 is arranged in parallel with the chassis 5, a gap for placing a radiator 12 is arranged between the link rod 9 and the chassis 5, a backing plate 10 is installed on the lower side face of the middle position of the link rod 9, and the backing plate 10 is in threaded connection with the link rod 9 through a locking bolt II 8. And a locking nut 7 is in threaded connection with the locking bolt II8, and the locking nut 7 is positioned on the upper side surface of the link rod 9. Two baffles 6 are symmetrically arranged on the lower side surfaces of two ends of the link rod 9, the baffles 6 are positioned on the upper side surface of the support plate 2, and the link rod 9, the baffles 6 and the support plate 2 are fixedly connected sequentially through fastening bolts 13 from top to bottom. Grooves 4 are symmetrically formed in two ends of the base plate 5, the grooves 4 are located on the inner side of the limiting pipe 3, and the grooves 4 are used for being aligned with welding seams of the end of the radiator 12 and the welding surface of the body. The width of the baffle 6 is larger than the distance between the outer side surface of the supporting plate 2 and the groove 4, so that the baffle 6 can shield the welding seam. A plurality of heat dissipation holes 11 are arranged on the chassis 5 at intervals, and the heat dissipation holes 11 are circular. The limiting pipe 3 is a square pipe, the supporting plate 2 is a stainless steel pipe, the connecting rod 9 is a square pipe, the chassis 5 is a hot-rolled channel steel, and the baffle 6 is a steel plate.

The utility model discloses combine the welded structure of IGBT radiator product, use hot rolling channel-section steel as chassis 5, nonrust steel pipe as backup pad 2, 3mm thick steel plate and carry out welded fastening as baffle 6, rethread fastening bolt 13 fastens. Meanwhile, in order to ensure that the tool can be recycled for many times, the internal stress of the tool is released through high-temperature treatment after the tool is manufactured, and deformation and warping in the recycling process are prevented, so that the tool cannot be used.

Internal threads are arranged in the support plate 2 and matched with the locking nut I1 for use, the support plate 2 is connected with the chassis 5 into a whole in a welding mode, and the limiting pipes 3 are respectively placed between two sides of the end of the radiator 12 and the locking bolt I1 when the tool is assembled; the nut 7 is fixed with the link rod 9 by welding, and the baffle 6 and the link rod 9 are fixed on the support plate 2 by fastening bolts. When the radiator 12 is fixed by using the lock bolt ii8, the tie plate 10 is installed between the lock bolt ii8 and the radiator 12.

During the use, put radiator 12 on chassis 5, spacing pipe 3 is placed respectively to radiator 12 end both sides, guarantees the contact between the plane, and radiator 12 end and body seam face welding seam are adjusted well with recess 4 on chassis 5, guarantee that the welding seam is in recess 4 top, utilize the precession (the precession) of locking bolt I1 through the backup pad 2 to promote spacing pipe 3, crowded end and body, guarantee that the welding clearance satisfies the preceding requirement of welding. And a baffle 6 and a link rod 9 are installed and fixed on the supporting plate 2 by using a fastening bolt 13, so that the baffle 6 can shield the welding seam. The product is fixed (loosened) through screwing in (screwing out) of the locking bolt II8, and the backing plate 10 is used in the middle, so that the locking bolt II8 is prevented from damaging the radiator 12.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A brazing tool for an IGBT radiator is characterized by comprising a chassis, wherein two limiting devices are symmetrically arranged at two ends of the chassis, each limiting device comprises a supporting plate and at least one locking bolt I, a limiting pipe is arranged on the inner side of each supporting plate, the limiting pipes are arranged in parallel with the supporting plates, the upper side surfaces of the limiting pipes are flush with the upper side surfaces of the supporting plates, the locking bolts I longitudinally penetrate through the supporting plates and extend to the side surfaces of the limiting pipes, close to one side of each supporting plate, and the locking bolts I are in threaded connection with the supporting plates;

2. The brazing tool for the IGBT radiator according to claim 1, wherein two baffles are symmetrically arranged on the lower side surfaces of the two ends of the link rod, the baffles are positioned on the upper side surface of the support plate, and the link rod, the baffles and the support plate are fixedly connected sequentially through fastening bolts from top to bottom.

3. The brazing tool for the IGBT radiator according to claim 1, wherein grooves are symmetrically formed in two ends of the base plate and located on the inner side of the limiting pipe, and the grooves are used for being aligned with welding seams of the end head of the radiator and the welding surface of the body.

4. The brazing tool for the IGBT radiator according to claim 2, wherein the width of the baffle is larger than the distance between the outer side face of the support plate and the groove.

5. The brazing tool for the IGBT radiator according to claim 1 or 4, wherein a plurality of spaced heat dissipation holes are formed in the chassis, and the heat dissipation holes are circular.

6. The brazing tool for the IGBT radiator according to claim 1, wherein a locking nut is arranged on the locking bolt II, the locking nut is in threaded connection with the locking bolt II, and the locking nut is located on the upper side face of the link rod.

7. The brazing tool for the IGBT radiator according to claim 2, wherein the limiting pipe is a square pipe, the supporting plate is a stainless steel pipe, the connecting rod is a square pipe, the chassis is a hot-rolled channel steel, and the baffle is a steel plate.