CN219965410U

CN219965410U - Flat dispensing head

Info

Publication number: CN219965410U
Application number: CN202321480740.0U
Authority: CN
Inventors: 沈喜源; 程铭; 梁昌盛; 王晶晶
Original assignee: Kunshan Shengxiangyuan Electronic Technology Co ltd
Current assignee: Kunshan Shengxiangyuan Electronic Technology Co ltd
Priority date: 2023-06-12
Filing date: 2023-06-12
Publication date: 2023-11-07
Anticipated expiration: 2033-06-12

Abstract

The utility model discloses a flat dispensing head which is assembled on a dispensing needle head, wherein a dispensing outlet, a transition pipe, a rubber storage pipe and an assembling pipe are sequentially arranged from one end to the other end of the dispensing head along the axial direction, the rubber storage pipe is of a cylindrical structure, the dispensing outlet is a flat square outlet, one end of the transition pipe is circular and connected with the rubber storage pipe, the other end of the transition pipe is tapered and contracted to form a flat shape and connected with the dispensing outlet, and the assembling pipe is assembled on the dispensing needle head. The utility model can uniformly coat the heat-conducting glue on the welding surface of the parts, ensure good welding among the welding parts, greatly reduce the thermal resistance and effectively ensure the heat transfer performance of the radiator.

Description

Flat dispensing head

Technical Field

The utility model relates to a welding fixture, in particular to a flat dispensing head.

Background

The existing dispensing needle heads are single-hole unidirectional dispensing, whether manual dispensing or automatic dispensing is adopted, and the heat conducting glue is linear after dispensing is finished. Because the fluidity of the heat-conducting glue is poor, the glue between the assembled parts is not completely flattened and spread, so that the contact between the upper part and the lower part is poor, the heat resistance is greatly increased, and the performance of the radiator is reduced.

If the screen printing glue brushing mode is adopted, the front surface and the back surface of the same part cannot be simultaneously screen-printed and glued, only one surface can be processed, and the overall efficiency is low.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides a flat dispensing head, wherein a flat square glue outlet can be uniformly coated with heat conducting glue on a part welding surface, so that good welding among welding parts is ensured, the thermal resistance is greatly reduced, and the heat transfer performance of a radiator is effectively ensured.

In order to achieve the above purpose, the present utility model proposes the following technical scheme: the utility model provides a flat type dispensing head, assembles on the dispensing syringe needle, dispensing head is the outlet along axial by one end to the other end in proper order, and the transition pipe stores up rubber tube and assembly pipe, it is cylindrical tubular structure to store up the rubber tube, and the outlet is flat square export, and transition pipe one end is circular and stores up the rubber tube and be connected, and the other end is the toper shrink and forms the platykurtic, is connected with the outlet, assembly pipe assembles on the dispensing syringe needle.

Preferably, the upper edge of the glue outlet is provided with a pressing plate.

Preferably, the assembly pipe is in interference fit with the dispensing needle.

Preferably, the outer diameter of the assembly pipe is smaller than Chu Jiaoguan, and the assembly pipe are in transition through necking.

Compared with the prior art, the flat dispensing head disclosed by the utility model has the following beneficial effects:

the flat glue outlet is matched with the pressing plate, so that heat-conducting glue can be uniformly coated on the welding surface, good welding among parts is ensured, thermal resistance is greatly reduced, and the heat transfer performance of the radiator is effectively ensured;

the large-size rubber storage tube can pre-store heat-conducting rubber, so that the continuity in the subsequent coating process is ensured, and the situation of rubber breakage is avoided;

the small-size assembly pipe can be matched with a conventional dispensing needle for use, so that the assembly flexibility of arrangement is improved, and the modification difficulty is reduced;

the shrinkage transition at the two ends of the rubber storage tube can ensure that the heat conduction rubber flows smoothly, and the problem of dead flowing angle is avoided;

the whole jig can effectively solve the problem of poor welding contact of the radiator welded by the heat conducting glue, greatly improves the product performance yield, reduces the production cost and effectively improves the product competitiveness.

Drawings

In order to more clearly illustrate the embodiments of the present utility model 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. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.

Fig. 1 is a block diagram of an embodiment of the present utility model.

In the drawing, a 1-glue outlet, a 2-transition pipe, a 3-glue storage pipe, a 4-assembly pipe, a 5-pressing plate, a 6-glue dispensing needle head and a 7-shrinkage opening are arranged.

Description of the embodiments

Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.

As shown in fig. 1, the flat dispensing head disclosed by the utility model is assembled on a dispensing needle, the structure of the flat dispensing head is sequentially provided with a glue outlet 1, a transition pipe 2, a glue storage pipe 3 and an assembling pipe 4 from one end to the other end along the axial direction, the glue storage pipe is of a large-size cylindrical structure and is used for pre-storing enough heat-conducting glue, the glue supply amount is enough in the follow-up dispensing process, the glue outlet is a flat square outlet, the extruded heat-conducting glue is ensured to be in a plane shape, a pressing plate 5 is arranged at the upper edge of the glue outlet, and after the heat-conducting glue is discharged, the heat-conducting glue is subjected to trowelling treatment, so that the whole welding surface is uniformly coated.

The glue outlet is connected with the glue storage pipe through a transition pipe, one end of the transition pipe is connected with the glue storage pipe in a round shape, the other end of the transition pipe is in a conical shrinkage shape to form a flat shape, the transition pipe is connected with the glue outlet, and the conical shrinkage transition pipe ensures the smoothness of the heat-conducting glue during glue outlet.

The assembly pipe is assembled on the dispensing needle head 6 and is in interference fit with the dispensing needle head, the outer diameter of the assembly pipe is smaller than Chu Jiaoguan, the assembly pipe and the dispensing needle head are in transition through the shrinkage 7, and the shrinkage structure enables heat-conducting glue extruded by the dispensing needle head to smoothly enter the rubber storage pipe.

The flat dispensing jig disclosed by the utility model effectively solves the problem of poor welding contact of the radiator welded by adopting the heat-conducting glue, greatly improves the product performance yield, reduces the production cost and effectively improves the product competitiveness.

While the foregoing has been disclosed in the specification and drawings, it will be apparent to those skilled in the art that various substitutions and modifications may be made without departing from the spirit of the utility model, and it is intended that the scope of the utility model be limited not by the specific embodiments disclosed, but by the appended claims.

Claims

1. A flat type dispensing head is assembled on a dispensing needle and is characterized in that: the dispensing head is provided with a glue outlet along the axial direction from one end to the other end, a transition pipe, a glue storage pipe and an assembly pipe, wherein the glue storage pipe is of a cylindrical structure, the glue outlet is a flat square outlet, one end of the transition pipe is connected with the glue storage pipe in a round shape, the other end of the transition pipe is contracted in a conical shape to form a flat shape, the transition pipe is connected with the glue outlet, and the assembly pipe is assembled on the dispensing needle.

2. The flat dispensing head of claim 1, wherein: the upper edge of the glue outlet is provided with a pressing plate.

3. The flat dispensing head of claim 1, wherein: the assembly pipe is in interference fit with the dispensing needle head.

4. The flat dispensing head of claim 1, wherein: the outer diameter of the assembly pipe is smaller than Chu Jiaoguan, and the assembly pipe pass through necking transition.