Novel heat gun heating body structure

Abstract

The utility model relates to a novel heat gun heating body structure, which comprises a ceramic cylinder, a supporting mica sheet and a heating resistance wire assembly fixed on the supporting mica sheet, and is characterized in that one end of the supporting mica sheet connected with the ceramic cylinder is U-shaped, the ceramic cylinder is formed by connecting an air outlet end head and a heating seat body into a whole, and the heating resistance wire assembly is fixed on the supporting mica sheet. First connecting grooves are formed in the positions, opposite to the connecting positions of the supporting mica sheets, of the air outlet end head and the outer wall of the heating base body, four heating air channels which are through front and back are formed in the air outlet end head and the heating base body, and the heating air channels are conical; and two groups of heating resistance wire assemblies which are arranged in parallel are fixed on the supporting mica sheet. According to the utility model, a straight barrel-shaped heating air channel is changed into a conical flow channel with a large inlet and a small outlet, so that the temperature of pressure gas can be automatically increased in the flowing process, and the effect of improving the heating efficiency is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hot -air gun technical field, specifically a new type hot -air gun heating body structure. BACKGROUND

[0002] Hot -air gun mainly is the hot air that the gun core of heating heating wire blows to carry out heating treatment to work piece, and the performance of hot -air gun mainly depends on the structure and manufacturing process of heating core, and the structure of heating core, the installation of heating wire, the arrangement of lead wire have great influence on the use of hot -air gun.

[0003] Hot -air gun heating body structure belongs to the important component of hot -air gun, and it often adopts straight cylinder heating air duct, and the existing hot -air gun heating body structure often does not have the function of temperature feedback, when its heating appears the failure, often needs manual use after a period of time to find, therefore in order to solve the above problem design a new type hot -air gun heating body structure then is particularly important. SUMMARY

[0004] The utility model discloses in order to solve above -mentioned problem designs a new type hot -air gun heating body structure, it changes the straight cylinder heating air duct into the tapered runner of import big export small, makes pressure gas in the process of flowing from oneself can be warmed, has played the role of improving heating efficiency.

[0005] In order to solve the above technical problem, the utility model provides a new type hot -air gun heating body structure, including ceramic cylinder, support mica sheet and the heating resistance wire subassembly of fixed on support mica sheet, its characterized in that: support mica sheet and the one end of ceramic cylinder connection is U-shaped, the ceramic cylinder is by the outflow end head and heating seat body and is connected into an organic whole and is composed, and the first connecting groove is set up on the outer wall of outflow end head and heating seat body relative to the connecting position of support mica sheet, the inside of outflow end head and heating seat body is equipped with four front and back through heating air duct, the heating air duct is the tapered runner of import big export small, the support mica sheet is fixed with two groups of parallelly connected heating resistance wire subassembly, and two groups of heating resistance wire subassembly are fixed on the upper and lower two end surfaces of support mica sheet respectively, and two high resistance value heating sections on each heating resistance wire subassembly respectively extend into two heating air ducts.

[0006] Further: the length of heating air duct is 20-28mm, the import end diameter of heating air duct is 7-8mm, and the export end diameter of heating air duct is 4-5mm.

[0007] Further, the support mica sheet is vertically connected with an auxiliary mica sheet, the auxiliary mica sheet is detachably inserted into the support mica sheet through the gap of the support mica sheet, the end of the auxiliary mica sheet connected with the ceramic cylinder is also U-shaped, a second connecting groove is formed on the outer wall of the head of the air outlet end and the heating seat body relative to the connecting position of the auxiliary mica sheet, and the end of the support mica sheet and the auxiliary mica sheet respectively extends to the outside of the head of the air outlet end along the first connecting groove and the second connecting groove.

[0008] Further, the high-resistance heating section is spiral-shaped, two high-resistance heating sections in the same group of heating resistance wire assemblies are connected through a transition connecting section, the two ends of the transition connecting section respectively extend into the two heating air ducts and are connected with the high-resistance heating sections, and a first placing groove for placing the transition connecting section is formed on the end face of the head of the air outlet end.

[0009] Further, the support mica sheet is vertically connected with an auxiliary mica sheet, the auxiliary mica sheet is detachably inserted into the support mica sheet through the gap of the support mica sheet, the end of the auxiliary mica sheet connected with the ceramic cylinder is also U-shaped, a second connecting groove is formed on the outer wall of the head of the air outlet end and the heating seat body relative to the connecting position of the auxiliary mica sheet, and the end of the support mica sheet and the auxiliary mica sheet respectively extends to the outside of the head of the air outlet end along the first connecting groove and the second connecting groove.

[0010] Further, the vertical section of the head of the air outlet end is circular, the vertical section of the heating seat body is square, the diameter of the head of the air outlet end is longer than the diagonal length of the heating seat body, and the four edges of the heating seat body are further provided with chamfered surfaces for winding mica paper in cooperation with the support mica sheet and the auxiliary mica sheet.

[0011] Further, two second placing grooves for installing thermocouples are formed on the end face of the head of the air outlet end, one end of the second placing groove is connected with the heating air duct, and the other end of the second placing groove is provided with a through hole penetrating through the head of the air outlet end.

[0012] Further, the head of the air outlet end is disc-shaped, an annular outer edge is arranged on the outer circle of the head of the air outlet end and is integrated with the head of the air outlet end, the heating seat body is composed of four cylindrical pieces which are integrated, and strip-shaped protruding portions are arranged on the outer walls of the four cylindrical pieces for winding mica paper in cooperation with the support mica sheet and the auxiliary mica sheet.

[0013] After the above structure is adopted, the beneficial effects of the present application are as follows:

[0014] 1. The heating air duct of the present application is changed from a straight cylinder into a tapered flow channel with a large inlet and a small outlet, so that the pressure gas can be heated automatically during the flowing process, thereby improving the heating efficiency.

[0015] 2. The ceramic cylinder of the present application is composed of the head of the air outlet end and the heating seat body, which replaces the traditional straight cylinder ceramic cylinder, and the use amount of the ceramic can be reduced by changing the shape structure of the heating seat body, thereby reducing the cost.

[0016] 3、 The utility model discloses can set up thermocouple at the air outlet end head part, and the temperature of air outlet end is accurately fed back through thermocouple, and the effect of increasing practicality is played. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further explained in detail in combination with the drawings and specific embodiments.

[0018] Figure 1 It is structural schematic diagram of the utility model embodiment one.

[0019] Figure 2 It is Figure 1 The enlarged view of A.

[0020] Figure 3 It is structural view of ceramic cylinder in the utility model embodiment one.

[0021] Figure 4 It is structural schematic diagram of the utility model embodiment two.

[0022] Figure 5 It is structural view of ceramic cylinder in the utility model embodiment two.

[0023] Figure 6 It is the connection schematic diagram of supporting mica sheet and auxiliary mica sheet.

[0024] In the drawing: 1 is ceramic cylinder, 1-1 is air outlet end head part, 1-1-1 is first placement groove, 1-1-2 is second placement groove, 1-1-3 is through -hole, 1-2 is heating seat body, 2 is supporting mica sheet, 3 is high resistance heating section, 4 is auxiliary mica sheet, 5 is temperature controller, 6 is temperature protector. DETAILED DESCRIPTION

[0025] Embodiment one

[0026] As Figure 1 And Figure 3The utility model provides a novel hot -air gun heating body structure, including ceramic cylinder 1, support mica piece 2 and fixed heating resistance wire subassembly on support mica piece 2, support mica piece 2 with the one end of ceramic cylinder 1 connection is U-shaped, the ceramic cylinder 1 is by the head of air outlet 1-1 and heating seat body 1-2 are connected into an organic whole and are composed, the first connecting groove is set up on the outer wall of head of air outlet 1-1 and heating seat body 1-2 relative to the connecting position of support mica piece, the inside of head of air outlet and heating seat body 1-2 is set up four front and rear through heating air duct, the heating air duct is the taper of import big export small, the support mica piece 2 is fixed with two groups of parallelly connected heating resistance wire subassembly, and two groups of heating resistance wire subassembly are fixed on the upper and lower two end surfaces of support mica piece respectively, and two high resistance heating sections 3 on each group of heating resistance wire subassembly respectively extend into two heating air ducts.

[0027] The length of the heating air duct is 20-28mm, the diameter of the import end of the heating air duct is 7-8mm, and the diameter of the export end of the heating air duct is 4-5mm.

[0028] As shown in Figure 1 and Figure 6 The support mica piece is also vertically connected with an auxiliary mica piece 4, which is detachably inserted into the support mica piece through the gap formed in the support mica piece. The end of the auxiliary mica piece connected with the ceramic cylinder 1 is also U-shaped. The outer wall of the head of air outlet 1-1 and the heating seat body 1-2 is provided with a second connecting groove relative to the connecting position of the auxiliary mica piece. The end of the support mica piece and the auxiliary mica piece respectively extends to the outside of the head of air outlet along the first connecting groove and the second connecting groove. The structure further improves the stability of the structure.

[0029] As shown in Figure 2 The high resistance heating section is in a spiral shape. The two high resistance heating sections in the same group of heating resistance wire subassembly are connected through a transition communication section. The two ends of the transition communication section respectively extend into the two heating air ducts and are connected with a high resistance heating section. The end surface of the head of air outlet is provided with a first placement groove 1-1-1 for placing the transition communication section.

[0030] As shown in Figure 1 The support mica piece is also detachably provided with a temperature controller 5 and a temperature protector 6. The temperature controller and the temperature protector are respectively electrically connected with the two groups of heating resistance wire subassembly in parallel. The temperature controller can control the heating temperature. The temperature protector can automatically limit the heating temperature to prevent unnecessary loss.

[0031] As Figure 3 The vertical section of the air outlet end head is circular, the vertical section of the heating seat body is square, the diameter length of the air outlet end head is longer than the diagonal length of the heating seat body, and the four edges of the heating seat body are further provided with chamfered slopes for winding mica paper in cooperation with the supporting mica sheets and the auxiliary mica sheets.

[0032] As Figure 2 The end surface of the air outlet end head is further provided with two second placing grooves 1-1-2 for installing thermocouples, one end of the second placing grooves is connected with the heating air duct in communication, and the other end of the second placing grooves is provided with a through hole 1-1-3 penetrating through the air outlet end head. The present application can set thermocouples on the air outlet end head, accurately feedback the temperature of the air outlet end through the thermocouples, and has the effect of increasing the practical performance.

[0033] Embodiment Two

[0034] The structure of Embodiment Two is substantially the same as that of Embodiment One, and the difference lies in the structure of the ceramic cylinder. Figure 4 and Figure 5 The air outlet end head is in the shape of a disc, the outer circle of the air outlet end head is provided with an annular outer edge part connected integrally therewith, the heating seat body is composed of four cylindrical parts connected integrally, and the outer walls of the four cylindrical parts are provided with strip-shaped protruding parts for winding mica paper in cooperation with the supporting mica sheets and the auxiliary mica sheets. The present application can further reduce the amount of ceramic used, and has the effect of further reducing the cost.

[0035] The above is only the preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments, and any technical solution falling within the idea of the present application belongs to the protection scope of the present application. It should be noted that, for ordinary skilled persons in the technical field, some improvements and decorations without departing from the principle of the present application should be considered as the protection scope of the present application.

Claims

1. A novel hot air gun heating element structure, comprising a ceramic tube (1), a supporting mica sheet (2) and a heating resistance wire assembly fixed on the supporting mica sheet (2), characterized in that: The support mica sheet (2) is connected with the ceramic cylinder (1) at one end in U shape, the ceramic cylinder (1) is composed of the air outlet end head (1-1) and the heating seat body (1-2) connected into one body, the outer wall of the air outlet end head (1-1) and the heating seat body (1-2) is provided with the first connecting groove relative to the connecting position of the support mica sheet, the air outlet end head and the heating seat body (1-2) are provided with four front and rear through heating air ducts, the heating air ducts are tapered with large inlet and small outlet, two groups of parallel arranged heating resistance wire assemblies are fixed on the support mica sheet (2), two groups of heating resistance wire assemblies are fixed on the upper and lower end surfaces of the support mica sheet respectively, two high resistance heating sections (3) on each group of heating resistance wire assemblies are inserted into two heating air ducts respectively.

2. The structure of the heating element of a new type of hot air gun according to claim 1, characterized in that: The length of the heating air duct is 20-28mm, the diameter of the inlet end of the heating air duct is 7-8mm, and the diameter of the outlet end of the heating air duct is 4-5mm.

3. The structure of the heating element of a new type of hot air gun according to claim 1, characterized in that: The support mica sheet is also vertically connected with the auxiliary mica sheet (4), the auxiliary mica sheet is detachably inserted into the support mica sheet through the gap provided in the support mica sheet, the end of the auxiliary mica sheet connected with the ceramic cylinder (1) is also in U shape, the outer wall of the air outlet end head (1-1) and the heating seat body (1-2) is provided with the second connecting groove relative to the connecting position of the auxiliary mica sheet, the end of the support mica sheet and the auxiliary mica sheet is respectively extended to the outside of the air outlet end head along the first connecting groove and the second connecting groove.

4. The structure of the heating element of a new type of hot air gun according to claim 1, characterized in that: The high resistance heating section is spiral, two high resistance heating sections in the same group of heating resistance wire assemblies are connected through a transition communication section, the two ends of the transition communication section are respectively inserted into two heating air ducts and connected with a high resistance heating section, the end surface of the air outlet end head is provided with the first placing groove (1-1-1) for placing the transition communication section.

5. The novel heat gun heater structure according to claim 1, characterized in that: The temperature controller (5) and the temperature protector (6) are detachably installed on the support mica sheet, the temperature controller and the temperature protector are respectively electrically connected with the two groups of heating resistance wire assemblies in parallel.

6. The novel heat gun heater structure according to any one of claims 1-5, characterized in that: The vertical section of the air outlet end head is circular, the vertical section of the heating seat body is square, the diameter length of the air outlet end head is longer than the diagonal length of the heating seat body, and the four edges of the heating seat body are further provided with chamfered surfaces for winding mica paper in cooperation with the support mica sheet and the auxiliary mica sheet.

7. The novel heat gun heater structure according to claim 6, characterized in that: The end surface of the air outlet end head is further provided with two second placing grooves (1-1-2) for installing thermocouples, one end of the second placing groove is communicated with the heating air duct, and the other end of the second placing groove is provided with a through hole (1-1-3) penetrating through the air outlet end head.

8. The novel heat gun heater structure according to any one of claims 1-5, characterized in that: The air outlet end head is disc-shaped, the outer ring of the air outlet end head is provided with an annular outer edge connected with the air outlet end head, the heating seat body is composed of four cylindrical pieces connected into one body, and the outer wall of the four cylindrical pieces is provided with a strip-shaped protruding part for winding mica paper in cooperation with the support mica sheet and the auxiliary mica sheet.

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