Pipe nozzle structure with flange plate

Abstract

The utility model relates to the technical field of radiator assemblies, and particularly discloses a nozzle structure with a flange plate, which comprises a main plate, a nozzle and a soldering lug, the lower part of the nozzle is provided with a flange plate part horizontally extending outwards, a vertical through hole is formed in the main plate in a penetrating manner, and a sinking table is machined on the surface of the main plate at the outer edge of the upper end of the through hole; the inner wall of the sinking table is attached to the outer circumferential wall of the soldering lug and the outer circumferential wall of the flange plate part, the soldering lug, the through hole and the flange plate part are coaxially arranged, and the inner diameter of the soldering lug is not larger than that of the through hole. According to the scheme, the problem that when an existing radiator pipe nozzle is matched with an opponent piece through brazing, brazing filler metal flows into the pipe nozzle and the sealing end face in the radial direction after being melted can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of radiator components, in particular to a nozzle structure with a flange. Background Art

[0002] Since the power system of new energy vehicles is mainly composed of motors and batteries, these components will generate a lot of heat when working. If the heat cannot be dissipated in time, it will have a serious impact on the performance and life of the motors and batteries. Therefore, the promotion of new energy vehicles has accelerated the market demand for related cooling technology, and the energy-saving and environmentally friendly characteristics of new energy vehicles have made them have higher performance requirements for radiators.

[0003] In order to ensure that the radiator can dissipate heat efficiently, the sealing requirements of the radiator products during heat dissipation are very strict. If the sealing is not good, it will cause leakage when matching with the counterpart, affecting the heat dissipation performance. The sealing also affects the service life and safety of the radiator. Radiators with poor sealing may be more prone to damage or failure, requiring more frequent repairs and replacements. At the same time, if the poor sealing causes the heat transfer medium to leak, it may also cause safety problems. The existing radiator nozzles are matched with the counterpart through brazing. Since the nozzle is cylindrical, the nozzle touches the inner wall of the counterpart and then starts welding. After the brazing material melts, it is easy to flow radially into the inside of the nozzle and the sealing end face, resulting in the sealing surface failing to meet the roughness requirements and reducing the sealing of the radiator. Therefore, our company proposes a nozzle structure with a flange to solve the above problems. Utility Model Content

[0004] The utility model provides a nozzle structure with a flange to solve the problem that when the existing radiator nozzle is matched with a counterpart through brazing, the brazing material flows radially into the nozzle interior and the sealing end surface after melting.

[0005] In order to solve the above problems, the technical solution adopted by the utility model is as follows: a nozzle structure with a flange, comprising a main board, a nozzle, and a welding plate, the lower part of the nozzle is provided with a flange portion extending horizontally outward, the main board is penetrated by a vertical through hole, and a sink is processed on the surface of the main board at the outer edge of the upper end of the through hole, the inner wall of the sink is respectively fitted with the outer peripheral wall of the welding plate and the flange portion, the welding plate, through hole, and flange portion are all coaxially arranged, and the inner diameter of the welding plate is not larger than the inner diameter of the through hole.

[0006] The basic principle of this scheme is: use the sinker to initially limit the outer peripheral wall of the nozzle and the welding piece, the welding piece is located between the nozzle and the sinker of the main board, when the nozzle is welded to the main board, the external clamp presses the upper side of the flange, the nozzle and the main board are fixed by spot rivets from the flange, and then the welding piece is heated at high temperature for brazing. After the welding piece melts, the nozzle and the main board on the upper and lower sides are welded together, and the welding position is changed so that the brazing material cannot flow to the radial sealing groove of the nozzle and the upper end face of the nozzle.

[0007] The beneficial effects of this solution are as follows: the existing radiator nozzle is matched with the counterpart through brazing. Since the nozzle is cylindrical, the nozzle starts to weld after it touches the inner wall of the counterpart. After the brazing material melts, it is easy to flow radially into the inside of the nozzle and the sealing end face, resulting in the sealing surface failing to meet the roughness requirements and reducing the sealing performance of the radiator. This solution changes the nozzle structure, designs a flange structure at the lower part of the nozzle, sets the welding point below the flange, changes the clamping position during welding, and keeps it away from the upper end face of the nozzle to ensure that the roughness of the nozzle can be maintained in the state after machining. At the same time, the outer edge portion extending outward from the flange is used as the welding surface, and the welding piece is set in the shape of a circular welding piece to increase the welding contact surface between the nozzle and the main board. After high-temperature melting, the brazing material only flows between the flange part and the top surface of the sink of the main board, away from the radial sealing groove of the nozzle and the upper end face of the nozzle. In addition, the welding piece, the nozzle, and the main board are preliminarily positioned by spot riveting the flange part and the main board to ensure the subsequent welding accuracy and welding quality.

[0008] Furthermore, an annular groove is provided on the upper outer peripheral wall of the nozzle, and a sealing member is detachably installed in the annular groove.

[0009] Furthermore, the height of the sink is not less than the sum of the thickness of the welding piece and the flange portion, so as to ensure that the welding piece and the nozzle are firmly positioned in the sink.

[0010] Furthermore, the front and rear side walls of the sink are horizontally connected to the side walls of the mainboard, so as to facilitate the clamping of the peripherals.

[0011] Furthermore, the nozzle has a channel running through it, and the channels include a first channel, a second channel, and a third channel arranged in sequence from top to bottom, the first channel is a vertical pipe, the second channel is a frustum section, the third channel is a vertical pipe, the lower end of the first channel matches the upper end of the second channel, the inner diameter of the third channel is larger than the inner diameter of the lower end of the second channel, and the inner diameter of the welding piece is not smaller than the inner diameter of the third channel. The internal structure of the nozzle is designed according to the flow of the heat transfer medium.

[0012] Furthermore, vertical mounting holes are processed at the vertices of the mainboard to be used for mounting and fixing the mainboard on external parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1It is an exploded schematic diagram of an embodiment of the utility model;

[0014] Figure 2 A schematic diagram of a nozzle in an embodiment of the utility model;

[0015] Figure 3 It is a cross-sectional view of the nozzle in the embodiment of the utility model. DETAILED DESCRIPTION

[0016] The following is further described in detail through specific implementation methods:

[0017] The reference numerals in the drawings of the specification include: main board 1, through hole 2, sink 3, welding piece 4, nozzle 5, flange 51, first channel 61, second channel 62, third channel 63, mounting hole 7, sealing member 8, and annular groove 9.

[0018] The embodiment is basically as shown in the attached Figure 1 To Attachment Figure 3 As shown:

[0019] A nozzle structure with a flange comprises a main board 1, which is in the shape of a rectangular flat plate. Vertical through holes 2 are symmetrically opened at the left and right ends of the top surface of the main board 1. The vertical through holes 2 are used for heat conduction medium to flow through. A sink 3 is processed on the outer edge of the top surface of the vertical through hole 2. The inner edge of the sink 3 is an incomplete circular surface that can fit a circular ring.

[0020] The welding piece 4 is placed horizontally inside the sinker 3. In the present embodiment, the welding piece 4 is in the shape of a circular ring, and the lower surface of the welding piece 4 is in contact with the top wall of the through hole 2. The inner diameter of the welding piece 4 is not less than the inner diameter of the through hole 2, and the outer peripheral wall of the welding piece 4 is in contact with the inner peripheral wall of the sinker 3. The position of the welding piece 4 is restricted by the sinker 3 so that the welding piece 4 is placed coaxially with the through hole 2.

[0021] A nozzle 5 is horizontally placed above the welding piece 4. The structure of the nozzle 5 is as follows: Figure 2 , 3 As shown, the nozzle 5 is in an inverted "T"-shaped step shape, and the lower part of the nozzle 5 is a flange 51. The flange 51 structure can be used to make a preliminary spot riveting connection between the nozzle 5 and the main board 1, so that the nozzle 5 is preliminarily positioned on the main board 1.

[0022] The upper part of the nozzle 5 is cylindrical, and an annular groove 9 is formed on the outer peripheral wall of the nozzle 5. The annular groove 9 is used to install an annular seal 8 when docking with an external pipe. A vertical channel is formed inside the nozzle 5. The vertical channel includes a first channel 61, a second channel 62, and a third channel 63 from top to bottom. The first channel 61 is in the shape of a vertical pipe, the second channel 62 is a frustum section, and the third channel 63 is in the shape of a vertical pipe. The inner diameter of the first channel 61 matches the inner diameter of the upper end of the second channel 62, and the inner diameter of the third channel 63 is larger than the inner diameter of the lower end of the second channel 62, thereby forming a trumpet-shaped channel that is narrow at the top and wide at the bottom in the nozzle 5, which facilitates the radial outward diffusion and distribution of the heat transfer medium along the channel.

[0023] In this embodiment, the inner diameter of the welding piece 4 is not less than the inner diameter of the third channel 63, the outer diameter of the welding piece 4 matches the outer diameter of the pipe, and the pipe, the welding piece 4, and the through hole 2 on the main board 1 are all coaxially arranged.

[0024] In this embodiment, mounting holes 7 are processed at the vertices of the mainboard 1 for fixing the entire mainboard 1 to the heat sink body.

[0025] In this embodiment, the height of the sinker 3 is not less than the sum of the thicknesses of the welding plate 4 and the pipe flange 51. The front and rear sides of the sinker 3 and the side walls of the two sinkers 3 at the ends away from each other respectively penetrate the side walls of the main board 1 to form a platform connected to the side walls of the main board 1, which is convenient for the external clamp to reach in to clamp the lower part of the nozzle 5, the welding ring, and the main board 1, and is convenient for manual alignment and adjustment of the position of the welding ring and the nozzle 5 from the outside.

[0026] The specific implementation process is as follows: place the mainboard 1 horizontally and fix it on the fixture of the peripheral device, place the welding ring horizontally into the sinker 3 from top to bottom, then place the nozzle 5 into the sinker 3 from top to bottom and press the welding piece 4, use the fixture to clamp the flange 51 of the nozzle 5, the welding piece 4, and the upper and lower sides of the mainboard 1, and use the spot riveting machine to spot rivet from top to bottom to initially fix the three into a whole, and then use the heating device to heat the welding piece 4. After the welding piece 4 is melted into liquid at high temperature, the nozzle 5 and the mainboard 1 are welded into one.

[0027] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A nozzle structure with a flange, characterized in that: It includes a main board, a nozzle, and a welding piece. The lower part of the nozzle is provided with a flange portion extending horizontally outward. A vertical through hole runs through the main board. A sink is processed on the surface of the main board at the outer edge of the upper end of the through hole. The inner wall of the sink is respectively fitted with the outer peripheral wall of the welding piece and the flange portion. The welding piece, through hole, and flange portion are all coaxially arranged, and the inner diameter of the welding piece is not larger than the inner diameter of the through hole.

2. A nozzle structure with a flange according to claim 1, characterized in that: An annular groove is arranged on the outer peripheral wall of the upper part of the nozzle, and a sealing member can be detachably installed in the annular groove.

3. A nozzle structure with a flange according to claim 2, characterized in that: The height of the sink is not less than the sum of the thickness of the welding piece and the flange portion.

4. A nozzle structure with a flange according to claim 3, characterized in that: The front and rear side walls of the sink are horizontally connected to the side walls of the main board.

5. A nozzle structure with a flange according to claim 4, characterized in that: A channel runs through the inside of the nozzle, and the channel includes a first channel, a second channel, and a third channel arranged in sequence from top to bottom. The first channel is a vertical pipe shape, the second channel is a frustum section, and the third channel is a vertical pipe shape. The lower end of the first channel matches the upper end of the second channel, the inner diameter of the third channel is larger than the inner diameter of the lower end of the second channel, and the inner diameter of the welding piece is not smaller than the inner diameter of the third channel.

6. A nozzle structure with a flange according to claim 5, characterized in that: Vertical mounting holes are respectively processed at the vertices of the mainboard.

Images