PTC heating single tube

Abstract

The utility model discloses a PTC heating single pipe, including heating sheet, plastic coated electrode sheet, first electrode sheet, insulating ceramic sheet, insulating film and aluminium pipe, plastic coated electrode sheet is by insulating frame body and second electrode sheet is composed, and second electrode sheet sets up in the outside of insulating frame body and is connected as an organic whole with insulating frame body, still equal interval is provided with a plurality of baffle in insulating frame body, and each baffle divides insulating frame body into a plurality of installation chamber, and heating sheet is by a plurality of split main part and is composed, and each main part is inserted in each installation chamber, and one face of each main part is respectively with second electrode sheet abuts, and first electrode sheet closes the other side of insulating frame body and is with another face of each main part abuts, and insulating ceramic sheet has two, and two insulating ceramic sheets are respectively arranged in the outside of first electrode sheet and second electrode sheet, and insulating film is covered in the outside of two insulating ceramic sheets and insulating frame body, and aluminium pipe sleeve is placed in the outside of insulating film, the utility model discloses simple assembly, and when working, it is difficult to produce abnormal sound.

Description

Technical Field

[0001] This utility model relates to a PTC heating single tube. Background Technology

[0002] Patent CN211296972U discloses a heating single tube, a heating core, and a heater. The heating single tube includes a heating element group, an insulating plate, an insulating film, and two opposing and spaced-apart electrode plates. The heating element group is disposed between the two opposing electrode plates. The above-mentioned heating single tube has the following shortcomings: In the heating element group, the heating element body and the insulating plate need to be arranged and assembled separately before being combined with the two electrode plates. The insulating plate is small in size and inconvenient to assemble. Moreover, the heating element body and the insulating plate are prone to displacement when assembled with the two electrode plates, resulting in gaps. These gaps will cause the heating single tube to shake and produce abnormal noise when it is working. Summary of the Invention

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a PTC heating single tube that is easy to assemble and does not easily produce abnormal noise during operation.

[0004] The technical solution of this utility model is: a PTC heating single tube, comprising a heating element, a plastic-coated electrode, a first electrode, an insulating ceramic sheet, an insulating film, and an aluminum tube; The plastic-coated electrode sheet consists of an insulating frame and a second electrode sheet. The second electrode sheet is disposed on the outside of the insulating frame and is integrally connected to the insulating frame. Multiple partitions are also equally spaced inside the insulating frame, and each partition divides the insulating frame into multiple installation chambers. The heating element consists of multiple separate main bodies, each main body is inserted into each installation chamber, and one side of each main body abuts against the second electrode sheet. The first electrode sheet closes the other side of the insulating frame and abuts against the other side of each main body. There are two insulating ceramic sheets, which are respectively disposed outside the first electrode sheet and the second electrode sheet. The insulating film covers the two insulating ceramic sheets and the outside of the insulating frame, and the aluminum tube is sleeved on the outside of the insulating film.

[0005] Furthermore, the insulating frame has multiple slots on the side near the second electrode sheet, and the second electrode sheet has multiple buckles corresponding to each slot on both sides. The second electrode sheet is connected to the insulating frame as a whole by snapping into each corresponding slot through each buckle.

[0006] Furthermore, a limiting part is also provided at one end of the insulating frame.

[0007] Furthermore, the insulating frame is provided with a first insulating plug and a second insulating plug at both ends, and the first insulating plug also forms a limiting part.

[0008] Furthermore, the second insulating seal is cap-shaped and is fastened and snapped onto the end of the insulating frame.

[0009] Specifically, the second insulating seal and the insulating frame are integrally formed.

[0010] Preferably, there are four main bodies, and the two main bodies located in the middle have a length that is twice that of the two main bodies located at the two ends.

[0011] Furthermore, one end of the first electrode sheet and the second electrode sheet are respectively provided with an electrode head, and the two electrode heads extend out of aluminum tubes and are staggered.

[0012] Specifically, the insulating film is a polyamide film.

[0013] The beneficial effects of this utility model are as follows: the partitions in the insulating frame form an insulating plate to separate the main body of each heating element. The insulating frame and the second electrode plate form a mounting box. The main body of each heating element is inserted into the corresponding mounting chamber, which facilitates the positioning of each heating element. There is no need to arrange and assemble the heating elements and the insulating plate separately. Moreover, the main body of each heating element is reliably fixed, and it is not easy to cause displacement or shaking during and after assembly, which simplifies the assembly of the entire PTC heating tube. The two insulating ceramic plates are located on the outside of the first electrode plate and the second electrode plate respectively, and are tightly attached to the two electrode plates under the action of the insulating film. On the one hand, it improves the insulation reliability of the inner core of the PTC heating tube. On the other hand, it can also ensure that the two electrode plates abut against the main body of each heating element, avoiding gaps at the abutment point, thereby preventing abnormal noise caused by displacement or shaking of the main body of each heating element during operation. Attached Figure Description

[0014] Figure 1 This is an exploded view of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model.

[0015] In the figure: First electrode 1, insulating ceramic sheet 2, insulating film 3, aluminum tube 4, insulating frame 5, second electrode 6, partition 7, main body 9, first insulating seal 11, second insulating seal 12, electrode head 13. Detailed Implementation

[0016] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0017] Combination Figure 1 and Figure 2 As shown, a PTC heating single tube includes a heating element, a plastic-coated electrode, a first electrode 1, an insulating ceramic sheet 2, an insulating film 3, and an aluminum tube 4; The plastic-coated electrode sheet consists of an insulating frame 5 and a second electrode sheet 6. The second electrode sheet 6 is disposed on the outside of the insulating frame 5 and is connected to the insulating frame 5 as a whole. Multiple partitions 7 are also arranged at equal intervals inside the insulating frame 5. Each partition 7 divides the insulating frame 5 into multiple installation chambers. The heating element consists of multiple split main bodies 9. Each main body 9 is inserted into each installation chamber. One side of each main body 9 abuts against the second electrode sheet 6. The first electrode sheet 1 closes the other side of the insulating frame 5 and abuts against the other side of each main body 9. There are two insulating ceramic sheets 2, which are respectively disposed on the outside of the first electrode sheet 1 and the second electrode sheet 6. The insulating film 3 covers the outside of the two insulating ceramic sheets 2 and the insulating frame 5, and the aluminum tube 4 is sleeved on the outside of the insulating film 3.

[0018] In the above structure, each partition 7 in the insulating frame 5 forms an insulating plate to separate the main body 9 of each heating element. The insulating frame 5 and the second electrode plate 6 form a mounting box. The main body 9 of each heating element is inserted into the corresponding mounting chamber, which facilitates the positioning of each heating element. There is no need to arrange and assemble the heating elements and the insulating plate separately. Moreover, the main body 9 of each heating element is reliably fixed, and it is not easy to cause displacement or shaking during and after assembly, which simplifies the assembly of the entire PTC heating tube. The two insulating ceramic plates 2 are located on the outside of the first electrode plate 1 and the second electrode plate 6, respectively, and are tightly attached to the two electrode plates under the protection of the insulating film 3. On the one hand, this improves the insulation reliability of the PTC heating tube core, and on the other hand, it ensures that the two electrode plates abut against the main body 9 of each heating element, avoiding gaps at the abutment point, and thus preventing the main body 9 of each heating element from making abnormal noise due to displacement or shaking during operation.

[0019] In another embodiment, such as Figure 1 As shown, the insulating frame 5 has multiple slots on the side near the second electrode plate 6, and the second electrode plate 6 has multiple buckles on both sides corresponding to each slot. The second electrode plate 6 is connected to the insulating frame 5 as a whole by each buckle being inserted into the corresponding slot, so as to ensure the reliability of the connection between the second electrode plate 6 and the insulating frame 5.

[0020] In another embodiment, such as Figure 1 As shown, one end of the insulating frame 5 is also provided with a limiting part so that the assembled PTC heating tube can be installed onto the support of the heating core.

[0021] In another embodiment, such as Figure 1 As shown, the insulating frame 5 is further provided with a first insulating plug 11 and a second insulating plug 12 at both ends, and the first insulating plug 11 also forms a limiting part.

[0022] In another embodiment, such as Figure 1As shown, the second insulating plug 12 is cap-shaped and is snapped onto and locked to the end of the insulating frame 5 to facilitate the assembly of the second insulating plug 12 and ensure the reliability of the connection between the second insulating plug 12 and the insulating frame 5.

[0023] In another embodiment, such as Figure 1 As shown, the second insulating plug 12 and the insulating frame 5 are integrally formed to ensure the reliability of the connection between the second insulating plug 12 and the insulating frame 5.

[0024] Specifically, such as Figure 1 As shown, there are four main bodies 9. The two main bodies 9 located in the middle have a length that is twice that of the two main bodies 9 located at both ends.

[0025] In another embodiment, such as Figure 2 As shown, the first electrode plate 1 and the second electrode plate 6 are respectively provided with an electrode head 13 at one end. The two electrode heads 13 extend out of the aluminum tube 4 and are staggered to facilitate wiring.

[0026] Specifically, the insulating film 3 is a polyamide film.

Claims

1. A PTC heating single tube, characterized in that, It includes a heating element, a plastic-coated electrode, a first electrode (1), an insulating ceramic sheet (2), an insulating film (3), and an aluminum tube (4); The plastic-coated electrode sheet is composed of an insulating frame (5) and a second electrode sheet (6). The second electrode sheet (6) is disposed on the outside of the insulating frame (5) and is connected to the insulating frame (5) as a whole. Multiple partitions (7) are also arranged at equal intervals inside the insulating frame (5). Each partition (7) divides the insulating frame (5) into multiple installation chambers. The heating element is composed of multiple split main bodies (9). Each main body (9) is inserted into each installation chamber. One side of each main body (9) abuts against the second electrode sheet (6). The first electrode sheet (1) closes the other side of the insulating frame (5) and abuts against the other side of each main body (9). There are two insulating ceramic sheets (2), which are respectively disposed on the outside of the first electrode sheet (1) and the second electrode sheet (6). The insulating film (3) covers the outside of the two insulating ceramic sheets (2) and the insulating frame (5), and the aluminum tube (4) is sleeved on the outside of the insulating film (3).

2. The PTC heating single tube as described in claim 1, characterized in that, The insulating frame (5) has multiple slots on the side near the second electrode plate (6), and the second electrode plate (6) has multiple buckles on both sides corresponding to each slot. The second electrode plate (6) is connected to the insulating frame (5) as a whole by each buckle being inserted into the corresponding slot.

3. A PTC heating single tube as described in claim 2, characterized in that, The insulating frame (5) is also provided with a limiting part at one end.

4. A PTC heating single tube as described in claim 3, characterized in that, The insulating frame (5) is further provided with a first insulating plug (11) and a second insulating plug (12) at both ends, and the first insulating plug (11) also forms a limiting part.

5. A PTC heating single tube as described in claim 4, characterized in that, The second insulating plug (12) is cap-shaped and is fastened and snapped onto the end of the insulating frame (5).

6. A PTC heating single tube as described in claim 5, characterized in that, The second insulating seal (12) and the insulating frame (5) are integrally formed.

7. A PTC heating single tube as described in claim 6, characterized in that, There are four main bodies (9), and the two main bodies (9) located in the middle are twice the length of the two main bodies (9) located at the two ends.

8. A PTC heating single tube as described in claim 7, characterized in that, The first electrode plate (1) and the second electrode plate (6) are respectively provided with an electrode head (13) at one end, and the two electrode heads (13) extend out of the aluminum tube (4) and are staggered.

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