CN107702388B

CN107702388B - Condenser and manufacturing tool and manufacturing method thereof

Info

Publication number: CN107702388B
Application number: CN201711114061.0A
Authority: CN
Inventors: 孙宇彤; 秦国军
Original assignee: Setford Changshu Refrigeration Equipment Co ltd
Current assignee: Thetford Changshu Motorhome Parts Co ltd
Priority date: 2017-11-13
Filing date: 2017-11-13
Publication date: 2020-09-18
Anticipated expiration: 2037-11-13
Also published as: WO2019090791A1; CN107702388A

Abstract

The utility model provides a condenser, includes a plurality of radiating unit, radiating unit includes a plurality of fin and a cooling tube, seted up the through-hole on the fin, buckling into the U type at the middle part of cooling tube, buckling once more behind the through-hole through a plurality of fins is worn to establish at the both ends of cooling tube, and the through-hole of cooling tube and fin is interference fit. The condenser provided by the invention has the advantages that the complexity of the manufacturing process is reduced by improving the structure of the condenser, the original traditional materials are replaced to reduce the cost of raw materials, and the condenser with the structure is matched, so that the corresponding reasonable manufacturing tool and the manufacturing method are provided, and the problems of high material cost, complex process and high machine equipment investment in the prior art are further solved.

Description

Condenser and manufacturing tool and manufacturing method thereof

Technical Field

The invention relates to the technical field of condensers of refrigerators, in particular to a condenser, a manufacturing tool of the condenser and a manufacturing method of the condenser.

Background

The condenser is a part of refrigeration system, and is a kind of heat exchanger, which can change gas or vapor into liquid, and transfer the heat in the tube to the air near the radiating tube in a faster way. The refrigerating principle of a refrigerator in a general refrigerator is that a compressor compresses working media from low-temperature low-pressure gas into high-temperature high-pressure gas, the high-temperature high-pressure gas is condensed into medium-temperature high-pressure liquid through a condenser, and the medium-temperature high-pressure liquid is throttled by a throttle valve and becomes low-temperature low-pressure liquid. The low-temperature low-pressure liquid working medium is sent into the evaporator, absorbs heat in the evaporator and evaporates to become low-temperature low-pressure steam, and the low-temperature low-pressure steam is sent into the compressor again, so that the refrigeration cycle is completed.

High-temperature high-pressure gas passes through a long pipe (usually coiled into a solenoid), lets the heat loss to the air all around, often attaches the fin that heat-conducting property is excellent on the pipeline for the efficiency that improves the condenser, enlarges heat radiating area to dispel the heat with higher speed, and quicken the air convection through the fan, take away the heat.

The cooling fins in the existing condenser are made of aluminum mostly, the cost is relatively high, in the production process, a copper pipe is bent into a U shape, then the cooling fins penetrate into the copper pipe to be welded and fixed to form a cooling unit, then bent connecting pieces are welded at two ends of the cooling copper pipe to be connected with two ends of the copper pipe of the next cooling unit, and the cooling units form the condenser. The condenser produced in the way is high in material cost and complex in process, on one hand, the input cost of production equipment is increased, on the other hand, the labor cost is correspondingly increased, and the structure, the production mode and the production equipment need to be optimized and upgraded so as to adapt to the long-term rapid development of enterprises.

Disclosure of Invention

In view of the above, the present invention provides a condenser, which solves the problems of high material cost, complex process and high investment in machine equipment in the prior art by improving the structure of the condenser and using a reasonable manufacturing tool and a reasonable manufacturing method.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides a condenser, includes a plurality of radiating unit, radiating unit includes a plurality of fin and a cooling tube, the through-hole has been seted up on the fin, the U type is buckled into at the middle part of cooling tube, buckles once more after the through-hole through a plurality of fins is worn to establish at the both ends of cooling tube, the cooling tube is interference fit with the through-hole of fin.

Preferably, the pipe wall of the part of the radiating pipe located between the radiating fins is deformed along the radial direction, so that the section of the part of the radiating pipe is in an oval shape, and the radiating pipe is expanded and fixed to act on the inner wall of the through hole of the radiating fin.

Preferably, the radiating fins and the radiating pipe are made of cold rolled carbon steel.

In order to achieve the above object, the present invention further provides a condenser manufacturing tool, wherein the manufacturing tool is a pressing device, the pressing device has a placing portion for bearing the heat sink and the heat dissipation pipe, and a pressing portion capable of pressing the heat dissipation pipe borne by the placing portion, and the pressing portion presses the heat dissipation pipe to deform the heat dissipation pipe in a direction perpendicular to the pressing direction, and is fixed to the inner wall of the through hole of the heat sink in an expanding manner.

As preferred, the portion of putting has a base, be equipped with a plummer on the base, the top surface of plummer has a contact surface, and has seted up a plurality of rectangular fin bearing grooves on the plummer, and the plummer corresponds the position department of fin through-hole and sets up two arc recesses that are used for placing the cooling tube, the portion of compressing tightly has a roof, the roof below is provided with an extruded article, the bottom surface of extruded article has an extrusion effect point, extrusion effect point vertical action compresses tightly on the pipe wall of cooling tube and with the contact surface butt, realizes that the cooling tube takes place radial deformation in relative perpendicular to extrusion direction, a plurality of fin holding grooves have been seted up to the position that the extruded article corresponds the fin bearing groove of plummer.

Preferably, the contact surface and the bottom surface of the extrusion member are inclined surfaces with the same inclination angle, and the contact surface and the bottom surface of the extrusion member are correspondingly matched to realize abutting contact.

Preferably, the arrangement direction of the radiating fin bearing grooves is parallel to the width direction of the bearing table and is uniformly arranged along the length direction of the bearing table, the length and the width of the radiating fin bearing grooves are the same as those of the radiating fins, the arrangement direction of the arc-shaped grooves is parallel to the length direction of the bearing table, namely, the arrangement direction of the arc-shaped grooves is perpendicular to the arrangement direction of the radiating fin bearing grooves, the arrangement direction of the radiating fin accommodating grooves is parallel to the width direction of the extrusion piece and is uniformly arranged along the length direction of the extrusion piece, and the length and the width of the radiating fin accommodating grooves are the same as those of the radiating fins.

Preferably, the width of the arc-shaped groove is larger than the diameter of the radiating pipe, the depth of the arc-shaped groove is 3mm, and the sum of the depths of the radiating fin bearing groove and the radiating fin accommodating groove is equal to the height of the radiating fin.

Simultaneously, the manufacturing method for manufacturing the condenser by using the condenser manufacturing tool is also provided, and comprises the following steps:

s1, sequentially inserting the radiating fins into radiating fin bearing grooves on a bearing table in the condenser manufacturing tool;

s2, bending the middle part of the radiating pipe into a U shape, and arranging the two ends of the radiating pipe in the arc groove on the bearing platform after penetrating through the through holes of the plurality of radiating fins;

s3, the extrusion piece moves in the direction vertical to the radiating pipe, the extrusion action point of the bottom surface of the extrusion piece vertically acts on the pipe wall of the radiating pipe and is pressed against the contact surface, so that the radiating pipe radially deforms in the direction vertical to the extrusion direction and is expanded and fixed with the inner wall of the through hole of the radiating fin;

and S4, bending the two ends of the radiating pipe by using a pipe bending machine to finish the whole manufacturing process.

Compared with the prior art, the condenser provided by the invention realizes the fixation of the radiating fin and the radiating pipe through the expansion and fastening of the radiating fin through the radiating pipe, compared with the structure for realizing the fixation of the radiating fin and the radiating pipe through welding in the prior art, the process is more convenient, and meanwhile, the original aluminum and copper materials are replaced by cold-rolled carbon steel, so that the raw material cost is further reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a heat dissipation unit in a condenser according to the present invention;

FIG. 2 is a schematic perspective view of a mounting portion of a condenser manufacturing tool according to the present invention;

FIG. 3 is a side view of FIG. 2;

fig. 4 is a schematic perspective view of a pressing portion of a condenser manufacturing tool according to the present invention;

FIG. 5 is a side view of FIG. 4;

FIG. 6 is a schematic structural view of the heat sink and the heat pipe mounted on the mounting portion of the condenser manufacturing tool;

fig. 7 is a schematic structural view of the pressing portion pressing for pressing.

Reference numerals and component parts description referred to in the drawings:

1. a heat sink; 2. a radiating pipe; 3. a placement part; 4. a pressing part; 5. a base; 6. a bearing table; 7. a contact surface; 8. the radiating fin bears the weight of the groove; 9. an arc-shaped groove; 10. a top plate; 11. an extrusion; 12. a point of impact of the extrusion; 13. a heat sink receiving groove.

Detailed Description

The invention provides a condenser with an optimized structure aiming at the existing problems, and provides a manufacturing tool and a manufacturing method for manufacturing the condenser by matching with the condenser with the structure.

The technical solution of the present invention will be clearly and completely described by the following detailed description. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. 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.

Referring to fig. 1, a condenser, includes a plurality of heat dissipation units, and the heat dissipation unit includes a plurality of fin 1 and a cooling tube 2, has seted up the through-hole on the fin 1, and the U type is buckled into at the middle part of cooling tube 2, and the both ends of cooling tube 2 are worn to establish and are buckled once more after the through-hole through a plurality of fin 1, and cooling tube 2 is interference fit with the through-hole of fin 1. The structure that the radiating pipe 2 and the radiating fins 1 are welded and fixed in the prior art is abandoned, the part of the radiating pipe 2, which is positioned among the radiating fins 1, is extruded, the pipe wall of the radiating pipe is deformed along the radial direction, and the section of the radiating pipe of the part is oval and is expanded and fixed to act on the inner wall of the through hole of the radiating fin 1. In order to reduce the cost of raw materials, the original radiating fin 1 made of aluminum and the radiating pipe 2 made of cylinder are replaced by cold-rolled carbon steel.

Referring to fig. 2 to 5, a condenser manufacturing tool is a pressing device, the pressing device includes a mounting portion 3 for mounting a heat sink 1 and a heat pipe 2, and a pressing portion 4 capable of pressing the heat pipe 2 mounted on the mounting portion 3, and the pressing portion 4 presses the heat pipe 2 to deform in a direction perpendicular to the pressing direction and to be fixed to the inner wall of the through hole of the heat sink 1.

The carrying part 3 is provided with a base 5, a bearing platform 6 is arranged on the base 5, the top surface of the bearing platform 6 is provided with a contact surface 7, a plurality of rectangular radiating fin carrying grooves 8 are formed in the bearing platform 6, and two arc-shaped grooves 9 used for placing the radiating pipes 2 are formed in the positions, corresponding to the through holes of the radiating fins 1, of the bearing platform 6. The pressing portion 4 has a top plate 10, and a pressing member 11 is provided below the top plate 10.

The bottom surface of extruded article 11 has an extrusion action point 12, and extrusion action point 12 vertical action compresses tightly on the pipe wall of cooling tube 2 and with 7 butts of contact surface, realizes that cooling tube 2 takes place radial deformation in relative perpendicular to extrusion direction, and contact surface 7 and the inclined plane of extruded article 11's bottom surface for having the same inclination, and both cooperations correspond to set up and realize the butt contact.

The position of the extrusion piece 11 corresponding to the heat sink bearing groove 8 of the bearing platform 6 is provided with a plurality of heat sink accommodating grooves 13.

The arrangement direction of the radiating fin bearing grooves 8 is parallel to the width direction of the bearing table 6 and is uniformly arranged along the length direction of the bearing table 6, and the length and the width of the radiating fin bearing grooves 8 are the same as those of the radiating fins 1. The arrangement direction of the arc-shaped groove 9 is parallel to the length direction of the bearing table 6, namely, the arrangement direction of the radiating fin bearing groove 8 is vertical to the arrangement direction of the radiating fin bearing groove, the arrangement direction of the radiating fin accommodating groove 13 is parallel to the width direction of the extrusion piece 11 and is uniformly arranged along the length direction of the extrusion piece 11, and the length and the width of the radiating fin accommodating groove 13 are the same as those of the radiating fin 1.

In order to realize that the radiating pipe 2 can be deformed in the arc-shaped groove 9, the width of the arc-shaped groove 9 is larger than the diameter of the radiating pipe 2, the depth of the arc-shaped groove 9 is 3mm, and the sum of the depths of the radiating fin bearing groove 8 and the radiating fin accommodating groove 13 is equal to the height of the radiating fin 1, so that the radiating fin 1 is not influenced by extrusion acting force in the extrusion process.

The manufacturing method for manufacturing the condenser by using the condenser manufacturing tool is also provided, and comprises the following steps:

and S1, sequentially inserting the radiating fins into the radiating fin bearing grooves on the bearing table in the condenser manufacturing tool.

S2, bending the middle of the heat pipe into a U shape, and inserting the two ends of the heat pipe into the arc grooves of the platform after passing through the through holes of the plurality of heat dissipation fins, as shown in fig. 6.

And S3, moving the extrusion piece in the direction vertical to the radiating pipe, wherein the extrusion action point on the bottom surface of the extrusion piece vertically acts on the pipe wall of the radiating pipe and is abutted and pressed with the contact surface, so that the radiating pipe is radially deformed in the direction vertical to the extrusion direction and is expanded and fixed with the inner wall of the through hole of the radiating fin, and the heat dissipation pipe is shown in figure 7.

The condenser provided by the invention has the advantages that the complexity of the manufacturing process is reduced by improving the structure of the condenser, the original traditional materials are replaced to reduce the cost of raw materials, and the condenser with the structure is matched, so that the corresponding reasonable manufacturing tool and the manufacturing method are provided, and the problems of high material cost, complex process and high machine equipment investment in the prior art are further solved.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a frock is made to condenser, frock is made to condenser is used for making condenser, its characterized in that: the condenser comprises a plurality of radiating units, each radiating unit comprises a plurality of radiating fins and a radiating pipe, through holes are formed in the radiating fins, the middle parts of the radiating pipes are bent into a U shape, two ends of each radiating pipe penetrate through the through holes of the plurality of radiating fins and then are bent again, the radiating pipes and the through holes of the radiating fins are in interference fit, the pipe walls of the parts, located among the plurality of radiating fins, of the radiating pipes are radially deformed, so that the sections of the parts of the radiating pipes are oval, the parts of the pipe walls are expanded and fixed to act on the inner walls of the through holes of the radiating fins, and the radiating fins and;

the manufacturing tool is a pressing device, the pressing device is provided with a carrying part for carrying radiating fins and radiating tubes and a pressing part capable of extruding the radiating tubes carried on the carrying part, the pressing part extrudes the radiating tubes to enable the radiating tubes to deform in the extrusion direction perpendicular to the direction, and the radiating tubes are expanded and fixed with the inner wall of the through hole of the radiating fins, the carrying part is provided with a base, a carrying table is arranged on the base, the top surface of the carrying table is provided with a contact surface, the pressing part is provided with a top plate, an extrusion piece is arranged below the top plate, the bottom surface of the extrusion piece is provided with an extrusion action point, the extrusion action point vertically acts on the tube wall of the radiating tubes and is pressed against the contact surface, the radial deformation of the radiating tubes in the extrusion direction perpendicular to the direction is realized, and the contact surface and the bottom surface of the extrusion piece, the two are correspondingly matched to realize abutting contact.

2. The condenser manufacturing tool according to claim 1, wherein: the bearing platform is provided with a plurality of rectangular radiating fin bearing grooves, the positions of the bearing platform corresponding to the radiating fin through holes are provided with two arc-shaped grooves for placing radiating tubes, and the positions of the extruded piece corresponding to the radiating fin bearing grooves of the bearing platform are provided with a plurality of radiating fin accommodating grooves.

3. The condenser manufacturing tool according to claim 2, wherein: the fin bears the setting direction of recess and is parallel with the width direction of plummer to length direction align to grid along the plummer, the fin bears the length and the width of recess and the length and the width of fin the same, the setting direction of arc recess is parallel with the length direction of plummer promptly and bears the setting direction of recess perpendicular with the fin, the setting direction of fin holding recess is parallel with the width direction of extruded article to length direction align to grid along the extruded article, the length and the width of fin holding recess are the same with the length and the width of fin.

4. The condenser manufacturing tool according to claim 3, wherein: the width of arc recess is greater than the diameter of cooling tube, and the degree of depth of arc recess is 3mm, the fin bears the weight of the degree of depth sum that recess and fin holding recess equal to the height of fin.

5. A condenser manufacturing method is characterized in that: the condenser manufacturing tool set forth in any one of claims 1 to 4 comprises the following steps: