CN201969980U - Heating element, blower gun and hot air drawing welding station - Google Patents
Heating element, blower gun and hot air drawing welding station Download PDFInfo
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- CN201969980U CN201969980U CN201120011576XU CN201120011576U CN201969980U CN 201969980 U CN201969980 U CN 201969980U CN 201120011576X U CN201120011576X U CN 201120011576XU CN 201120011576 U CN201120011576 U CN 201120011576U CN 201969980 U CN201969980 U CN 201969980U
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Abstract
The utility model provides a heating element, a blower gun and a hot air drawing welding station. The heating element comprises a cylindrical framework, two power supply terminals and a heating pipe formed by spirally winding a heating wire, wherein the surface of the framework is provided with a positioning structure; the heating pipe is spirally wound on the framework; by the positioning structure, a gap is formed between every two adjacent turns of heating pipe wound on the framework; and both ends of the heating pipe are respectively and electrically connected to the two power supply terminals. For the heating element, the heating pipe formed by spirally winding the heating wire is wound on the surface of the framework and by the positioning structure on the surface of the framework, the adjacent turns of heating pipe wound on the framework are difficult to touch, so that the probability of damage to equipment, which is caused by short circuit of the heating wire, is greatly reduced; and moreover, an oxidation layer does not need to be additionally plated on the surface of the heating wire, thus, the process is simplified, and the equipment can also be avoided being damaged due to the short circuit of the heating wire, which is possibly caused by poor oxidation or excessively long using time of the heating wire.
Description
Technical field
The utility model relates to the electric equipment field, relates in particular to a kind of heater, air pressure gun and hot blast soldering table.
Background technology
In circuit connection, electrical equipment assembling or the maintenance of equipment process, sometimes need to remove the components and parts that are encapsulated on the circuit board, these components and parts adopt PLCC (special pin chip encapsulation), SOIC (small outline integrated circuit encapsulation), BGA packaging technologies such as (BGA Package) to be welded on securely on the circuit board usually, can't remove by hand.In order to remove these components and parts smoothly and to avoid damaging product as much as possible, adopt hot blast soldering table shown in Figure 1 to realize sealing-off technology usually.The hot blast soldering table specifically comprises console 1 and air pressure gun 2, and air pressure gun 2 is shelved on the console 1 and conveniently takes off.Parts such as air accumulator, air pump are set in the console 1, the air accumulator stores compression gas, air pump links to each other with air pressure gun 2 by the pipeline with certain-length, is used for the gas that air accumulator provides is delivered to air pressure gun 2.Air pressure gun 2 comprises housing, chimney fan and is encapsulated in the interior heater of chimney fan that as shown in Figure 2, heater is made up of skeleton 22 and the heating wire 21 that is arranged on skeleton 22 peripheries.In the use, at first enter the air inlet of housing from the gas of pipeline, thereby heating heated up the gas in the chimney fan rapidly after heating wire 21 was connected power supply, high-temperature gas is exported from the air outlet of chimney fan again, can directly the weld on the air outlet alignment circuit plate be melted scolding tin, thereby remove the electronic devices and components that are welded on this position.
As shown in Figures 2 and 3, in the air pressure gun 2 of existing hot blast soldering table, the skeleton 22 of heater is a ceramics pole, and single heating wire 21 forms a lot of circles along skeleton 22 surfaces that axially are wrapped in of skeleton 22, and heating wire 21 is also connected power supply by lead 23 and the power supply terminals that are encapsulated in the plastic housing 24.The winding shape of every circle heating wire 21 is similar to triangle, the mutual correspondence in the bight of adjacent two circle heating wires 21 is wrapped on the skeleton 22 heating wire 21 whole profiles triangular in shape, or staggers mutually and make heating wire 21 integral body be hexagram or heptangle star profile is wrapped on the skeleton 22 in the bight of adjacent two circle heating wires 21.The gap is very little between the adjacent two circle heating wires 21 of this heating element structure, is easy under the air-flow effect to move and touches.Cause short circuit for fear of 21 touchings of adjacent two circle heating wires, usually need increase the plating oxide layer on heating wire 21 surfaces by modes such as energising oxidation or chemical agent oxidations, thisly utilize mode that oxidation technology avoids heating wire 21 short circuits not only complex process, cost are higher, if oxidation is bad or caused for a long time under the situation that oxide layer comes off using, adjacent two circle heating wires 21 still may short circuit and damage equipment.
Therefore, demand urgently the heater of existing hot blast soldering table is improved.
The utility model content
The main technical problems to be solved in the utility model is to provide a kind of and avoid the heating wire short circuit and heater, air pressure gun and the hot blast soldering table of damage equipment and simplification production technology.
For solving the problems of the technologies described above, the utility model provides a kind of heater, comprise column skeleton and two power supply terminals, also comprise the heat-generating pipe that forms through screw winding by heating wire, described skeleton surface is provided with location structure, and described heat-generating pipe is spirally wound on the described skeleton and makes by described location structure and forms between the adjacent two circle heat-generating pipes that are wrapped on the skeleton at interval; The two ends of described heat-generating pipe are electrically connected to two power supply terminals respectively.
In a kind of embodiment, described location structure is the axially extended helicla flute along described skeleton, and described heat-generating pipe embeds in the described helicla flute.
In the another kind of embodiment, described location structure is at least one row projection that distributes along described skeleton axially spaced-apart, and described projection is between the adjacent two circle heat-generating pipes that are wrapped on the skeleton.
Preferably, described skeleton is a ceramic skeleton.
Preferably, described skeleton comprises head and afterbody, and described power supply terminal is arranged on described skeleton afterbody; Described skeleton inside is provided with first through hole that connects head and afterbody, power supply terminal directly is connected by the end that lead and described heat-generating pipe are wrapped in described skeleton afterbody, the lead of described first through hole is passed in another power supply terminal utilization, and an end that is wrapped in described skeleton head with described heat-generating pipe is connected.
Preferably, described skeleton comprises axis body and tightly is enclosed within sleeve on the described axis body, and described axis body is the high-strength ceramic axis body, and described sleeve is the heat-stable ceramic sleeve, and described location structure is arranged on the outer surface of described sleeve.
Described first through hole is arranged on described axis body inside.
The utility model has also been protected a kind of air pressure gun, comprises housing, chimney fan and heater, and described chimney fan is installed in the end of described housing, and described heater is encapsulated in the described chimney fan, and described heater is above-described heater.
Further, also comprise circuit board and button, described circuit board links to each other with button with described power supply terminal, and described circuit board is encapsulated in described enclosure interior, and described button exposes described housing.
The utility model has also been protected a kind of hot blast soldering table, comprises console and air pressure gun, and described console is connected by pipeline with air pressure gun, and described air pressure gun is above-described air pressure gun.
The beneficial effects of the utility model are: the utility model heater will be wrapped in the skeleton surface by the heat-generating pipe that heating wire forms through screw winding, and the location structure by the skeleton surface makes and is difficult between the adjacent two circle heat-generating pipes that are wrapped on the skeleton touching, significantly reduce the heating wire short circuit and caused the probability of device damage, improved the stability of equipment.Compare with the mode that directly single heating wire is wrapped in the skeleton surface in the prior art, the utility model heater need not increase the plating oxide layer on the heating wire surface, therefore simplified technology, reduced technology cost and material cost, and can avoid because the heating wire oxidation is bad or the damage equipment using the short circuit that still may cause of a specified duration.
Description of drawings
Fig. 1 is a kind of existing hot blast soldering table structural representation;
Fig. 2 is a kind of existing heating element structure schematic diagram;
Fig. 3 is a kind of existing heater assembling exploded view;
Fig. 4 is the heating element structure schematic diagram of a kind of embodiment of the utility model;
Fig. 5 is the heater assembling exploded view of a kind of embodiment of the utility model;
Fig. 6 is the air pressure gun assembling exploded view of a kind of embodiment of the utility model;
Fig. 7 is the console cut-away view of the hot blast soldering table of a kind of embodiment of the utility model;
Fig. 8 is the hot blast soldering table structural representation of a kind of embodiment of the utility model.
The specific embodiment
In conjunction with the accompanying drawings the utility model is described in further detail below by the specific embodiment.
Please refer to Fig. 4 and Fig. 5, in the air pressure gun 2 of the hot blast soldering table of present embodiment, heater comprises skeleton 22, heat-generating pipe 210 and two power supply terminals that are respectively applied for the connection power positive cathode.Skeleton 22 can adopt resistant to elevated temperatures materials such as plastics, pottery to make, and preferred hear resistance pottery better, with low cost is shaped as column, for example cylindric, prism-shaped etc.Heat-generating pipe 210 is formed through screw winding by single or many heating wires, is spring-like.Skeleton 22 surfaces are provided with location structure, heat-generating pipe 210 is spirally wound on the skeleton 22, and make by location structure between the adjacent two circle heat-generating pipes 22 that are wrapped on the skeleton 22 to form at interval, avoid adjacent two circle heat-generating pipes, 22 hypotelorisms that touching takes place and the short circuit that causes.Two power supply terminals are electrically connected by the two ends of lead with heat-generating pipe 210 respectively, make heat-generating pipe 210 conductings and generate heat, and power supply terminal is encapsulated in the plastic housing 24 usually to be convenient to fix.
A kind of preferred embodiment in, location structure is along skeleton 22 axially extended helicla flutes 221, thus heat-generating pipe 210 embeds in this helicla flute 221 and is spirally wound on the skeleton 22.The degree of depth of helicla flute 221, width and the density that is distributed in skeleton 22 surfaces are decided according to concrete needs.When utilizing 221 pairs of heat-generating pipes 210 of helicla flute to support, heat-generating pipe 210 can integral body be embedded in the helicla flute 221 and can't drop out, even heat-generating pipe 210 twined pine or was out of shape under thermal expansion, helicla flute 221 still can limit its change in location, has therefore effectively avoided adjacent two circle electrothermal tubes 210 touching to take place and cause short circuit.
In the another kind of embodiment, location structure is at least one row projection that distributes along skeleton 22 axially spaced-aparts, thereby this projection is separated it between the adjacent two circle heat-generating pipes 22 that are wrapped on the skeleton 22.Columns, the height of projection and the density that is distributed in skeleton 22 surfaces also can be decided according to concrete needs.
According to concrete needs, skeleton 22 can adopt integral type or split-type structural, and when adopting split-type structural, skeleton 22 comprises the axis body of column and tightly is enclosed within sleeve on the axis body, but axis body and sleeve one-shot forming.Axis body adopts high strength ceramic material, has strength and stiffness preferably, thereby can avoid its distortion or fracture to sleeve and effective support of heat-generating pipe 210 formation; Sleeve adopts heat-stable ceramic, can not be damaged under hot environment, and location structure is arranged on the outer surface of sleeve.For split type skeleton 22, preferably first through hole is arranged on axis body inside, make a power supply terminal pass whole axis body and be connected with the end that heat-generating pipe 210 is wrapped in skeleton 22 heads.
For the heating temp to heater control effectively, heater also can further comprise temperature sensor, this temperature sensor has temp probe and two temperature sensor terminal, skeleton 22 inside also are provided with second through hole and the third through-hole that connects head and afterbody, preferably, second through hole and third through-hole all are arranged on axis body inside.Temp probe is arranged on the temperature that skeleton 22 heads are convenient to survey this position, and two temperature sensor terminal utilize the lead 23 that passes second through hole and third through-hole to be connected with temp probe polarity respectively.After temperature sensor utilizes temp probe to detect the heating temp of heater, can be to the console 1 feedback temperature signal of hot blast soldering table, console 2 by the display screen displays temperature in case operating personnel check.
The lead 23 that heater is used to connect power supply and temp probe can adopt rubber to be fastened, for the ease of heater being fixed in the air pressure gun 2, also have clamping part 25 on the plastic housing 24 of heater afterbody, this clamping part 25 can match with the inner walls of air pressure gun 2, dismantles very convenient.
A kind of air pressure gun as shown in Figure 6 comprises housing, chimney fan 26, circuit board 28, button 29 and is encapsulated in heater in the chimney fan 26.Heater is the described heater of above embodiment, and housing is made up of upper casing 271 and lower casing 272, utilizes screw to fix between the two, and housing has air inlet, and chimney fan 26 has air outlet.Air inlet links to each other with console 1 by pipeline and is used to receive the gas that air pump provides, the chimney fan 26 that materials such as stainless steel are made is installed in the end of housing and corresponding with skeleton 22 heads of heater, can utilize the heat of heat-generating pipe that gas is heated and with its output air outlet.Circuit board 28 links to each other with power supply terminal, sensor terminal, circuit board 28 and button 29 etc., and circuit board 28 is encapsulated in enclosure interior, and button 29 exposes housing, is convenient to operating personnel when handing air pressure gun, it is carried out the control of operational factors such as temperature, air quantity.In the air pressure gun assembling process of present embodiment, at first quartz glass tube 211 is inserted chimney fan 26, and long micanite pipe 213 and short micanite pipe 212 lay respectively between the quartz glass tube 211, the chimney fan 26 of again heater being packed into, and power supply terminal and sensor terminal etc. linked to each other with circuit board 28 in the housing, at last housing is fixedlyed connected with the afterbody of chimney fan 26.
A kind of hot blast soldering table as Fig. 7 and Fig. 8, comprise console 1 and air pressure gun 2, console 1 is connected by pipeline 3 with air pressure gun 2, air pressure gun 2 is above-described air pressure gun 2, console 1 comprises shell 11 and the air pump 12, air accumulator 13, transformer 14 and the pcb board 16 that are contained in the shell 1, and an end face of shell 11 is provided with control panel 15.Air pump 12 is used for offering air pressure gun 2 from air accumulator 13 extracting gases and by pipeline 3, transformer 14 is connected to it with air pump 12 voltage-stabilized power supply is provided, pcb board 16 links to each other with control panel 15, control panel 15 is provided with button, display etc., be used to adjust operational factors such as temperature height and air quantity, operating personnel can be provided with by the operational factors such as heating temp of button to air pressure gun 2, also can check the detected current parameters such as heating temp of temperature sensor, so that the duty of hot blast soldering table is monitored by display.
The utility model heater will be wrapped in the skeleton surface by the heat-generating pipe that heating wire forms through screw winding, and the location structure by the skeleton surface makes and is difficult between the adjacent two circle heat-generating pipes that are wrapped on the skeleton touching, significantly reduce the heating wire short circuit and caused the probability of device damage, improved the stability of equipment.Compare with the mode that directly single heating wire is wrapped in the skeleton surface in the prior art, the utility model heater need not increase the plating oxide layer on the heating wire surface, therefore simplified technology, reduced technology cost and material cost, and can avoid because the heating wire oxidation is bad or the damage equipment using the short circuit that still may cause of a specified duration.
Above content be in conjunction with concrete embodiment to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (10)
1. heater, comprise column skeleton and two power supply terminals, it is characterized in that, also comprise the heat-generating pipe that forms through screw winding by heating wire, described skeleton surface is provided with location structure, and described heat-generating pipe is spirally wound on the described skeleton and makes by described location structure and forms between the adjacent two circle heat-generating pipes that are wrapped on the skeleton at interval; The two ends of described heat-generating pipe are electrically connected to two power supply terminals respectively.
2. heater as claimed in claim 1 is characterized in that, described location structure is the axially extended helicla flute along described skeleton, and described heat-generating pipe embeds in the described helicla flute.
3. heater as claimed in claim 1 is characterized in that, described location structure is at least one row projection that distributes along described skeleton axially spaced-apart, and described projection is between the adjacent two circle heat-generating pipes that are wrapped on the skeleton.
4. as each described heater among the claim 1-3, it is characterized in that described skeleton is a ceramic skeleton.
5. heater as claimed in claim 4 is characterized in that described skeleton comprises head and afterbody, and described power supply terminal is arranged on described skeleton afterbody; Described skeleton inside is provided with first through hole that connects head and afterbody, power supply terminal directly is connected by the end that lead and described heat-generating pipe are wrapped in described skeleton afterbody, the lead of described first through hole is passed in another power supply terminal utilization, and an end that is wrapped in described skeleton head with described heat-generating pipe is connected.
6. heater as claimed in claim 5, it is characterized in that described skeleton comprises axis body and tightly be enclosed within sleeve on the described axis body that described axis body is the high-strength ceramic axis body, described sleeve is the heat-stable ceramic sleeve, and described location structure is arranged on the outer surface of described sleeve.
7. heater as claimed in claim 6 is characterized in that, described first through hole is arranged on described axis body inside.
8. an air pressure gun comprises housing, chimney fan and heater, and described chimney fan is installed in the end of described housing, and described heater is encapsulated in the described chimney fan, it is characterized in that, described heater is each described heater in the claim 1 to 7.
9. air pressure gun as claimed in claim 8 is characterized in that, also comprises circuit board and button, and described circuit board links to each other with button with described power supply terminal, and described circuit board is encapsulated in described enclosure interior, and described button exposes described housing.
10. a hot blast soldering table comprises console and air pressure gun, and described console is connected by pipeline with air pressure gun, it is characterized in that, described air pressure gun is the described air pressure gun of claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120011576XU CN201969980U (en) | 2011-01-14 | 2011-01-14 | Heating element, blower gun and hot air drawing welding station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120011576XU CN201969980U (en) | 2011-01-14 | 2011-01-14 | Heating element, blower gun and hot air drawing welding station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201969980U true CN201969980U (en) | 2011-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120011576XU Expired - Fee Related CN201969980U (en) | 2011-01-14 | 2011-01-14 | Heating element, blower gun and hot air drawing welding station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201969980U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104209617A (en) * | 2014-08-22 | 2014-12-17 | 常州快克锡焊股份有限公司 | High-temperature breeze generation device |
| CN110579016A (en) * | 2019-07-31 | 2019-12-17 | 山东碳垣纳米科技有限公司 | Gas heating device and gas heating method |
-
2011
- 2011-01-14 CN CN201120011576XU patent/CN201969980U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104209617A (en) * | 2014-08-22 | 2014-12-17 | 常州快克锡焊股份有限公司 | High-temperature breeze generation device |
| CN110579016A (en) * | 2019-07-31 | 2019-12-17 | 山东碳垣纳米科技有限公司 | Gas heating device and gas heating method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20190114 |