CN205174811U

CN205174811U - Plenum heating ware

Info

Publication number: CN205174811U
Application number: CN201520984083.2U
Authority: CN
Inventors: 洪子恒
Original assignee: Shenzhen Forestall Exact Equipment Co Ltd
Current assignee: Shenzhen Forestall Exact Equipment Co Ltd
Priority date: 2015-12-02
Filing date: 2015-12-02
Publication date: 2016-04-20
Anticipated expiration: 2025-12-02

Abstract

The utility model relates to a plenum heating ware. The heater includes the casing of the rectangular bodily form and the air pipe of cylinder, and the heater that is used for the heated gas body is laid to the air pipe inner wall, and air pipe's axial is parallel with the length direction of casing, and air pipe is two at least, and air pipe evenly establishes in the casing, is equipped with air intake and air outlet on the casing, and air pipe feeds through with air intake and air outlet respectively. Compared with the prior art, the utility model beneficial effect be: having adopted to be more than an air pipe and to be more than a heater, having enlarged hot -blast air -out scope, the density of heater obtains improving, has improved distributive uniformity of temperature, has improved the heating effect.

Description

A kind of air-supply heater

Technical field

The utility model relates to chip bga rework equipments, particularly relates to a kind of air-supply heater.

Background technology

The chip of BGA package, when reprocessing, needs special purpose machinery to carry out dismantling and welding.The feature of BGA package be leg in chip bottom, shell is generally resin, and this just requires that, when heating, hot blast temperature is wanted evenly.The trend of the miniaturization of chip, also claims to the flowing velocity of hot blast, and speed can not be fast, and hot blast is integrate by chip as far as possible, reduces the interference to small size chip, avoids displacement.Importantly the uniformity of chip temperature of whole heating surface when heating of BGA package is very important in addition.Current heater is exactly a glass pipe, and a heater strip is placed in the inside, and when hot blast sprays, centre position temperature is higher, and the marginal position temperature be in outside air outlet is then lower, and Temperature Distribution is even not, and heating effect is bad.

Utility model content

The purpose of this utility model is the defect for overcoming prior art, and provides a kind of air-supply heater, to improve temperature distribution evenness, improves heating effect.

For achieving the above object, the utility model is by the following technical solutions:

A kind of air-supply heater, comprise the housing of cuboid and columnar ventilation shaft, ventilation shaft inwall is equipped with the heating wire for heated air, the axis of ventilation shaft is parallel with the length direction of housing, ventilation shaft is at least two, ventilation shaft is evenly located in housing, and housing is provided with air inlet and air outlet, and ventilation shaft is communicated with air outlet with air inlet respectively.

Further, ventilation shaft has four, and four ventilation shafts are uniformly distributed round the axis of housing.

Further, ventilation shaft is glass tube, and heating wire is distributed on ventilation shaft inwall in the shape of a spiral.

Further, the location mid-shaft of housing is provided with for being communicated with vavuum pump with the vaccum suction pipe vacuumized.

Further, the sidewall of housing is provided with thermovent.

Further, air inlet is located at housing end face, and air outlet is located at housing bottom surface.

Further, opened by baffle for separating between ventilation shaft.

The utility model beneficial effect is compared with prior art: have employed more than one ventilation shaft and more than one heating wire, that is to say the wind-out range expanding hot blast, the density of heating wire is improved, and improves temperature distribution evenness, improves heating effect.

Accompanying drawing explanation

Fig. 1 is the side sectional view of air-supply heater;

Fig. 2 is the top view of air-supply heater;

Fig. 3 is the side view of air-supply heater.

Detailed description of the invention

In order to more fully understand technology contents of the present utility model, below in conjunction with specific embodiment the technical solution of the utility model being described further and illustrating.

The concrete structure of the utility model embodiment as shown in Figure 1 to Figure 3.

As shown in Figure 1, the air-supply heater of the present embodiment comprises housing 10 and the columnar ventilation shaft 20 of cuboid.Housing 10 has end face 11, bottom surface 12 and four sidewalls 13.The axis of ventilation shaft 20 is parallel with the length direction of housing 10.Housing 10 is provided with air inlet 111 and air outlet 121, and wherein, air inlet 111 is located at housing 10 end face 11, and air outlet 121 is located at housing 10 bottom surface 12.Ventilation shaft 20 is communicated with air outlet 121 with air inlet 111 respectively.

As shown in Figure 2, ventilation shaft 20 has four, and four ventilation shafts 20 are uniformly distributed round the axis of housing 10.Separated by dividing plate (not shown) between ventilation shaft 20, to reduce ventilation shaft 20 direct heat transfer.The location mid-shaft of housing 10 is provided with for being communicated with vavuum pump with the vaccum suction pipe 14 vacuumized.Vaccum suction pipe 14 is communicated with vacuum cups, for being picked up by chip after heating.

As shown in Figure 1, the inwall of each ventilation shaft 20 is all equipped with the heating wire 30 for heated air.Particularly, ventilation shaft 20 is glass tube, and heating wire 30 is distributed on ventilation shaft 20 inwall in the shape of a spiral.

In addition, as shown in Figure 3, the sidewall 13 of housing 10 is provided with thermovent 131, assembles in housing 10 for reducing heat.

More than state only with embodiment to further illustrate technology contents of the present utility model; so that reader is easier to understand; but do not represent embodiment of the present utility model and be only limitted to this, any technology done according to the utility model extends or recreation, all by protection of the present utility model.

Claims

1. an air-supply heater, comprise the housing of cuboid and columnar ventilation shaft, described ventilation shaft inwall is equipped with the heating wire for heated air, it is characterized in that, the axis of described ventilation shaft is parallel with the length direction of housing, and described ventilation shaft is at least two, and described ventilation shaft is evenly located in housing, described housing is provided with air inlet and air outlet, and described ventilation shaft is communicated with air outlet with air inlet respectively.

2. blow as claimed in claim 1 heater, it is characterized in that, described ventilation shaft has four, and four ventilation shafts are uniformly distributed round the axis of housing.

3. blow as claimed in claim 1 or 2 heater, it is characterized in that, described ventilation shaft is glass tube, and described heating wire is distributed on ventilation shaft inwall in the shape of a spiral.

4. blow as claimed in claim 1 heater, it is characterized in that, the location mid-shaft of described housing is provided with for being communicated with vavuum pump with the vaccum suction pipe vacuumized.

5. blow as claimed in claim 1 heater, it is characterized in that, the sidewall of described housing is provided with thermovent.

6. blow as claimed in claim 1 heater, it is characterized in that, described air inlet is located at housing end face, and described air outlet is located at housing bottom surface.

7. to blow as claimed in claim 1 heater, it is characterized in that, opened by baffle for separating between described ventilation shaft.