Heating pipe and heater with same

Abstract

The heating pipe comprises a sleeve and a heating wire, the sleeve is provided with a containing cavity, the heating wire is located in the containing cavity, the heating pipe comprises a first limiting piece, the first limiting piece is arranged on the heating wire in a sleeving mode, and the sleeve is arranged on the first limiting piece in a sleeving mode. The heating pipe comprises the first limiting piece, the first limiting piece is arranged on the heating wire in a sleeving mode, the sleeve is arranged on the first limiting piece in a sleeving mode, and deviation of the heating wire is reduced.

Description

[Technical field]

[0001] The present application relates to the field of heating, and in particular to a heating tube and a heater having the same. [Background technology]

[0002] A heating tube comprises a tube shell, magnesium powder and a heating wire, wherein the heating wire and the magnesium powder are located in the tube shell. During assembly, the heating wire is placed in the tube shell and the magnesium powder is filled into the tube shell. In order to improve the uniformity of the distribution of the magnesium powder in the shell tube, the tube shell needs to be vibrated when the magnesium powder is filled into the tube shell. The heating wire vibrates synchronously in the tube shell, thereby causing an offset. The centering degree of the heating wire needs to be further improved. [Contents of the utility model]

[0003] In order to solve the above problems, the following technical solution is provided: a heating tube, comprising a sleeve and a heating wire, the sleeve having a accommodating cavity, the heating wire being located in the accommodating cavity, the heating tube comprising a first limiting member, the first limiting member being sleeved on the heating wire, and the sleeve being sleeved on the first limiting member.

[0004] Such a heating tube comprises a first limiting member, the first limiting member is sleeved on the heating wire, and the sleeve is sleeved on the first limiting member to reduce the deviation of the heating wire.

[0005] The present application also provides a heater, comprising the above-mentioned heating tube, the heating tube comprising a first limiter, the first limiter is sleeved on the heating wire, and the sleeve is sleeved on the first limiter to reduce the deviation of the heating wire.

Brief Description of the Drawings

[0006] Figure 1 It is a schematic diagram of the structure of the heating tube in this application;

[0007] Figure 2 is a cross-sectional view of the heating tube in the present application;

[0008] Figure 3 yes Figure 2 A partial enlarged view of part A;

[0009] Figure 4 It is a structural schematic diagram of an implementation mode of the first limiting member in the present application;

[0010] Figure 5 is a top view of an implementation of the first limiting member in the present application;

[0011] Figure 6 is a schematic structural diagram of the first insulating magnetic bead in this application;

[0012] Figure 7 is a schematic structural diagram of the second insulating magnetic bead in the present application;

[0013] Figure 8 is a structural schematic diagram of another implementation mode of the first limiting member in the present application;

[0014] Fig. 9 It is a top view of another embodiment of the first limiting member in the present application.

[0015] Reference numerals:

[0016] Sleeve 1, second main body 11, first stopper 12,

[0017] Accommodating chamber 2, heating wire 3,

[0018] The first stopper 4, the first main body 41, the top wall 42, the bottom wall 43, the first support 44, the first channel 45, the second support 46, the third support 47, the fourth support 48,

[0019] The first insulating magnetic bead 5 , the second channel 51 , the third body 52 , the first protrusion 53 , the first guide rod 6 , the second insulating magnetic bead 7 , and the second guide rod 8 . [Specific implementation method]

[0020] The technical solution of the specific implementation method is described below in conjunction with the accompanying drawings.

[0021] It should be noted that: although this specification has described the present application in detail with reference to the above-mentioned implementation methods, ordinary technicians in the field should understand that technicians in the relevant technical field can still modify, combine or replace the present application with equivalents, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present application should be included in the scope of the claims of the present application.

[0022] refer to Figure 1-Figure 2 A heating tube, a sleeve 1 and a heating wire 3, the sleeve 1 has a accommodating cavity 2, the heating wire 3 is located in the accommodating cavity 2, the heating tube includes a first limiter 4, the first limiter 4 is sleeved on the heating wire 3, and the sleeve 1 is sleeved on the first limiter 4.

[0023] Such a heating tube comprises a first stopper 4 , wherein the first stopper 4 is sleeved on the heating wire 3 , and the sleeve 1 is sleeved on the first stopper 4 , so as to reduce the deviation of the heating wire 3 .

[0024] refer to Figure 4-Figure 5 The first limiting member 4 includes a first main body portion 41 and a first supporting portion 44. The first main body portion 41 is sleeved on the heating wire 3. The first supporting portion 44 protrudes from the outer peripheral wall of the first main body portion 41. The end of the first supporting portion 44 away from the first main body portion 41 contacts the inner wall of the sleeve 1.

[0025] The material of the first limiting member 4 is magnesium powder, which is the same as the insulating material filled into the heating tube, and the thermal conductivity coefficient is kept consistent, thereby improving the performance of the heating tube.

[0026] refer to Figure 4-Figure 5 The end of the first support portion 44 away from the first main body portion 41 is arc-shaped, and the end of the first support portion 44 away from the first main body portion 41 is adapted to the inner wall of the sleeve 1 to prevent the first limit member 4 from being damaged by impact with the inner wall of the sleeve 1 when filling powder.

[0027] refer to Figure 4-Figure 5 The first support portion 44 has a first channel 45. In the axial direction of the sleeve 1, the first channel 45 runs through the first support portion 44 to facilitate powder filling. It is defined that the surface perpendicular to the axis of the sleeve 1 is the first surface. The projection of the first support portion 44 on the first surface is roughly an isosceles trapezoid, which improves the strength of the first limit member 4.

[0028] refer to Figure 4-Figure 5 The first position-limiting member 4 includes a second support portion 46 and a third support portion 47. The second support portion 46 protrudes from the outer peripheral wall portion of the first main body portion 41, and the end of the second support portion 46 away from the first main body portion 41 contacts the inner wall of the sleeve 1. The third support portion 47 protrudes from the outer peripheral wall portion of the first main body portion 41, and the end of the third support portion 47 away from the first main body portion 41 contacts the inner wall of the sleeve 1. The first support portion 44, the second support portion 46 and the third support portion 47 are equidistantly arranged in the circumferential direction of the first main body portion 41, thereby improving the stability of the first position-limiting member 4 in the sleeve 1 and reducing the deviation of the heating wire 3.

[0029] The second supporting portion and the third supporting portion 47 are the same as the first supporting portion 44 or may be different, which will not be described in detail here.

[0030] refer to Figure 2-Figure 3 The heating tube includes a first insulating magnetic bead 5, a sleeve 1 is sleeved on the first insulating magnetic bead 5, the first insulating magnetic bead 5 has a second channel 51, the sleeve 1 has a second main body 11 and a first stopper 12, the first stopper 12 is recessed in the inner wall of the second main body 11, the first support portion 44 is located on the side of the first stopper 12 facing the first insulating magnetic bead 5, the first support portion 44 contacts the first stopper 12, and limits the first limit member 4 in the axial direction of the sleeve 1.

[0031] refer to Figure 2 The projection of the first stop portion 12 on the first surface is located at the projection of the wall portion corresponding to the first channel 45 on the first surface or outside the projection of the wall portion corresponding to the first channel 45 on the first surface. The first stop portion 12 is surrounded by the first main body portion 41. The outer diameter of the first main body portion 41 is D1, and the inner diameter of the first stop portion 12 is D2, 1mm≤D2-D1≤1.6mm.

[0032] refer to Figure 2 , define the surface perpendicular to the axis of the sleeve 1 as the second surface, the first main body 41 has a top wall 42 and a bottom wall 43, the second surface is located between the top wall 42 and the bottom wall 43, the distance between the top wall 42 and the second surface is equal to the distance between the bottom wall 43 and the second surface, the distance between the second surface and one end of the heating wire 3 is L1, the length of the heating wire 3 is L, 1 / 3≤L1 / L≤2 / 3.

[0033] refer to Figure 8-Figure 9 The first limiting member 4 includes a fourth supporting portion 48, which protrudes from the outer peripheral wall portion of the first main body portion 41, and the end of the fourth supporting portion 48 away from the first main body portion 41 contacts the inner wall of the sleeve 1, and in the radial direction of the sleeve 1, the end of the first supporting portion 44 away from the first main body portion 41 and the end of the fourth supporting portion 48 away from the first main body portion 41 at least partially overlap.

[0034] refer to Figure 8-Figure 9 The first support portion 44 and the fourth support portion 48 are symmetrically arranged with respect to the first main body portion 41 .

[0035] refer to Figure 2-Figure 7 The heating tube includes a first lead rod 6, a second insulating magnetic bead 7 and a second lead rod 8. The first lead rod 6 is penetrated by the first insulating magnetic bead 5, one end of the first lead rod 6 is connected to one end of the heating wire 3, the sleeve 1 is sleeved on the second insulating magnetic bead 7, the first insulating magnetic bead 5 is located at one end of the sleeve 1, the second insulating magnetic bead 7 is located at the other end of the sleeve 1, the second lead rod 8 is penetrated by the second insulating magnetic bead 7, and one end of the second lead rod 8 is connected to the other end of the heating wire 3.

[0036] refer to Figure 6 The first insulating magnetic bead 5 includes a third body 52 and a first protrusion 53. The first protrusion 53 protrudes from the first body 52. ​​The number of the first protrusions 53 is multiple, for example, 4. The 4 first protrusions 53 are arranged at intervals in the circumferential direction of the third body 52. ​​A second channel 51 is formed between a first protrusion 53 and the first protrusion 53 adjacent to it.

[0037] Of course, the first support portion 44, the second support portion 46, the third support portion 47 and the fourth support portion 48 can be configured to protrude from the inner wall of the first main body portion 41, and the ends of the first support portion 44, the second support portion 46, the third support portion 47 and the fourth support portion 48 away from the first main body portion 41 are in contact with the heating wire 3, and the outer wall of the first main body portion 41 is in contact with the inner wall of the sleeve 1, which will not be elaborated here.

[0038] During assembly, the first lead rod 6 is installed to the first insulating magnetic bead 5, the second lead rod 8 is installed to the second insulating magnetic bead 7, the first limiter 4 is sleeved on the heating wire 3, one end of the heating wire 3 is connected to the first lead rod 6, and the other end of the heating wire 3 is connected to the second lead rod 8 to form a heating assembly, and the heating assembly is passed through the sleeve 1. After being installed in place, magnesium powder is added to the sleeve 1 through the second channel 51, and then enters the other side of the first limiter 4 through the first channel 45. Since the first limiter 4 is sleeved on the heating wire 3, and the sleeve 1 is sleeved on the first limiter 4, the displacement of the heating wire 3 is reduced when filling powder, and the electrical performance of the heating tube is improved.

[0039] The present application also provides a heater, including the above-mentioned heating tube, the heating tube includes a first limiter 4, the first limiter 4 is sleeved on the heating wire 3, and the sleeve 1 is sleeved on the first limiter 4 to reduce the deviation of the heating wire 3.

[0040] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A heating tube, comprising a sleeve (1) and a heating wire (3), wherein the sleeve (1) has a receiving cavity (2), and the heating wire (3) is located in the receiving cavity (2), characterized in that: The heating tube comprises a first position-limiting member (4), the first position-limiting member (4) is sleeved on the heating wire (3), and the sleeve (1) is sleeved on the first position-limiting member (4).

2. The heating tube according to claim 1, characterized in that: The first limiting member (4) comprises a first main body portion (41) and a first supporting portion (44); the first main body portion (41) is sleeved on the heating wire (3); the first supporting portion (44) protrudes from the outer peripheral wall portion of the first main body portion (41); and the end of the first supporting portion (44) away from the first main body portion (41) contacts the inner wall of the sleeve (1).

3. The heating tube according to claim 2, characterized in that: The end of the first supporting portion (44) away from the first main body portion (41) is arc-shaped, and the end of the first supporting portion (44) away from the first main body portion (41) is adapted to the inner wall of the sleeve (1).

4. The heating tube according to claim 3, characterized in that: The first support portion (44) has a first channel (45). In the axial direction of the sleeve (1), the first channel (45) passes through the first support portion (44). It is defined that the surface perpendicular to the axis of the sleeve (1) is the first surface, and the projection of the first support portion (44) on the first surface is roughly an isosceles trapezoid.

5. The heating tube according to claim 4, characterized in that: The first limiting member (4) comprises a second supporting portion (46) and a third supporting portion (47); the second supporting portion (46) protrudes from the outer peripheral wall portion of the first main body portion (41); the end portion of the second supporting portion (46) away from the first main body portion (41) contacts the inner wall of the sleeve (1); the third supporting portion (47) protrudes from the outer peripheral wall portion of the first main body portion (41); the end portion of the third supporting portion (47) away from the first main body portion (41) contacts the inner wall of the sleeve (1); the first supporting portion (44), the second supporting portion (46) and the third supporting portion (47) are equidistantly arranged in the circumferential direction of the first main body portion (41).

6. The heating tube according to claim 4, characterized in that: The first limiting member (4) comprises a fourth supporting portion (48), the fourth supporting portion (48) protruding from the outer peripheral wall portion of the first main body portion (41), the end of the fourth supporting portion (48) away from the first main body portion (41) contacts the inner wall of the sleeve (1), and in the radial direction of the sleeve (1), the end of the first supporting portion (44) away from the first main body portion (41) and the end of the fourth supporting portion (48) away from the first main body portion (41) at least partially overlap.

7. The heating tube according to claim 6, characterized in that: The first supporting portion (44) and the fourth supporting portion (48) are symmetrically arranged with respect to the first main body portion (41).

8. The heating tube according to any one of claims 4 to 7, characterized in that: The heating tube comprises a first insulating magnetic bead (5), the sleeve (1) is sleeved on the first insulating magnetic bead (5), the first insulating magnetic bead (5) has a second channel (51), the sleeve (1) has a second main body (11) and a first stopper (12), the first stopper (12) is recessed in the inner wall of the second main body (11), the first support portion (44) is located on a side of the first stopper (12) facing the first insulating magnetic bead (5), and the first support portion (44) is in contact with the first stopper (12).

9. The heating tube according to claim 8, characterized in that: The projection of the first stopper (12) on the first surface is located at the projection of the wall corresponding to the first channel (45) on the first surface or outside the projection of the wall corresponding to the first channel (45) on the first surface. The first stopper (12) is arranged around the first main body (41). The outer diameter of the first main body (41) is D1, and the inner diameter of the first stopper (12) is D2, and 1mm≤D2-D1≤1.6mm.

10. The heating tube according to claim 9, characterized in that: A surface perpendicular to the axis of the sleeve (1) is defined as a second surface, the first main body (41) has a top wall (42) and a bottom wall (43), the second surface is located between the top wall (42) and the bottom wall (43), the distance between the top wall (42) and the second surface is equal to the distance between the bottom wall (43) and the second surface, the distance between the second surface and one end of the heating wire (3) is L1, the length of the heating wire (3) is L, 1 / 3≤L1 / L≤2 / 3.

11. A heater, characterized in that: The heating tube comprises the heating tube according to any one of claims 1 to 10.

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