Ceramic heating sheet

Abstract

The utility model relates to a ceramic heating sheet, which comprises a ceramic heating sheet body, at least two groups of first connecting structures and at least one group of second connecting structures, the ceramic heating sheet body is fan-ring-shaped; the first connecting structure comprises a first connecting piece and a second connecting piece, and the first connecting piece is arranged on one arc edge of the ceramic heating piece body or arranged at the position, close to the arc edge, of the outer side face of the ceramic heating piece body. The second connecting piece is arranged on the other arc edge of the ceramic heating sheet body or is arranged at a position, close to the arc edge, of the outer side surface of the ceramic heating sheet body; the second connecting structure comprises a first magnetic block and a second magnetic block, and the first magnetic block is arranged on the outer side face of the ceramic heating sheet body and connected with the ceramic heating sheet body; the second magnetic block is arranged on the outer side surface of the ceramic heating sheet body and is connected with the ceramic heating sheet body; the ceramic heating sheet body is arranged to be in the sector ring shape, the structural characteristics of a reducing pipe are met, and the stability is guaranteed through the arrangement of the connecting structure.

Description

Technical Field

[0001] This disclosure relates to a heat treatment apparatus for pipe fittings, specifically to a ceramic heating element. Background Technology

[0002] Chinese patent CN110699519A discloses a heat treatment heater for small-diameter irregular-shaped pipe fittings, including a track-type ceramic heating part wound on the straight pipe portion of the irregular-shaped pipe fitting and a rope-type ceramic heating part wound on the reducing pipe portion of the irregular-shaped pipe fitting. The track-type ceramic heating part is fixedly connected to the straight pipe portion of the irregular-shaped pipe fitting, and the rope-type ceramic heating part is fixedly connected to the reducing pipe portion of the irregular-shaped pipe fitting. One end of the track-type ceramic heating part and one end of the rope-type ceramic heating part are fixedly connected.

[0003] The aforementioned patent prevents heater overlap and ensures that certain areas of the heater are not tightly attached to the irregularly shaped pipe by wrapping the tracked ceramic heating element around the straight pipe section and the rope-shaped ceramic heating element around the reducing pipe section. When wrapping the invention with the irregularly shaped pipe, the tracked ceramic heating element is wrapped first and fixedly connected to the straight pipe section of the irregularly shaped pipe. Then, the rope-shaped ceramic heating element is wrapped. Since one end of the tracked ceramic heating element and one end of the rope-shaped ceramic heating element are fixedly connected, the difficulty of wrapping the rope-shaped ceramic heating element is greatly reduced. It also does not require multiple people to cooperate, takes less time, and is less likely to fall off. During processing, the invention can be processed into a size that does not require a large heating area, thus enabling localized heat treatment of small and medium-diameter irregularly shaped pipes.

[0004] Although the aforementioned patents have solved the problem that neither using a tracked ceramic heater alone, nor using a rope-shaped ceramic heater alone, nor using a combination of both, can meet the heat treatment requirements of small and medium-diameter irregular-shaped pipe fittings, the aforementioned patents still have the following drawbacks:

[0005] Existing ceramic heaters, whether tracked or rope-type, cannot completely cover the entire circumference of a reducer on their own. When using a tracked ceramic heater alone to cover the reducer, because the tracked ceramic heater is usually rectangular, there will be parts that are not covered or parts that overlap, which results in uneven heating of the reducer and affects the heat treatment progress and the quality of the reducer. When using a rope-type ceramic heater alone, it is necessary to wrap it, which is time-consuming and labor-intensive, and it is easy to loosen during the heating process, affecting the heating effect, the heat treatment progress, and the quality of the reducer. Utility Model Content

[0006] In order to solve the problems existing in the prior art, the purpose of this disclosure is to provide a ceramic heating element.

[0007] The ceramic heating element disclosed herein includes: a ceramic heating element body, at least two sets of first connecting structures, and at least one set of second connecting structures;

[0008] The ceramic heating element body is fan-shaped;

[0009] The first connection structure includes a first connector and a second connector, which are adapted to each other. The first connector is disposed on one arc edge of the ceramic heating element body or on the outer side of the ceramic heating element body near the arc edge, and is connected to the ceramic heating element body. The second connector is disposed on the other arc edge of the ceramic heating element body or on the outer side of the ceramic heating element body near the arc edge, and is connected to the ceramic heating element body.

[0010] The second connection structure includes a first magnetic block and a second magnetic block that are magnetically attracted to each other. The first magnetic block is disposed on the outer side of the ceramic heating element body and connected to the ceramic heating element body, and one end of the first magnetic block is flush with one chord edge of the ceramic heating element body. The second magnetic block is disposed on the outer side of the ceramic heating element body and connected to the ceramic heating element body, and one end of the second magnetic block is flush with the other chord edge of the ceramic heating element body.

[0011] Preferably, the first connecting structure has two sets, one set of which is disposed at the end of the ceramic heating element body, and the other set is disposed in the middle of the ceramic heating element body.

[0012] Preferably, the first connector includes a first connecting strip, one end of which is connected to the ceramic heating element body, and the other end is provided with a plurality of buttons, which are arranged along the length direction of the first connecting strip; the second connector includes a second connecting strip, one end of which is connected to the ceramic heating element body, and the other end is provided with a fastener adapted to the button, which is arranged along the length direction of the second connecting strip.

[0013] Preferably, the first connector is disposed on the outer surface of the ceramic heating element body near the inner arc edge of the ceramic heating element body and is bonded to the ceramic heating element body; the second connector is disposed on the outer surface of the ceramic heating element body near the outer arc edge of the ceramic heating element body and is bonded to the ceramic heating element body; the second connector is disposed on the outer surface of the ceramic heating element body near the outer arc edge of the ceramic heating element body and is bonded to the ceramic heating element body.

[0014] Preferably, the first connector is bonded to the ceramic heating element body using a heat-insulating adhesive; the second connector is bonded to the ceramic heating element body using a heat-insulating adhesive.

[0015] Preferably, the second connection structure comprises a set, wherein the first magnetic block is disposed on the outer side of the ceramic heating element body, and the length of the first magnetic block is the same as the chord length of the ceramic heating element body; the second magnetic block is disposed on the outer side of the ceramic heating element body, and the length of the second magnetic block is the same as the chord length of the ceramic heating element body.

[0016] Preferably, the first magnetic block is bonded to the ceramic heating element body using a heat-insulating adhesive; the second magnetic block is bonded to the ceramic heating element body using a heat-insulating adhesive.

[0017] Preferably, the heat-insulating adhesive material is a single-component silicone rubber or epoxy AB adhesive.

[0018] The ceramic heating element disclosed herein has the following advantages:

[0019] The ceramic heating element body is designed as a fan-shaped ring, which conforms to the structural characteristics of a reducer whose diameter gradually increases or decreases from one end to the other. This design can completely cover the reducer and prevent overlapping of parts of the ceramic heating element body, thus avoiding uneven heating of the reducer.

[0020] With the first connection structure, after the ceramic heating element body covers the entire reducer, the ceramic heating element body and the reducer are locked together by the first connection structure to prevent loosening during the heating of the reducer and ensure the stability of the connection between the ceramic heating element body and the reducer. With the second connection structure, it is prevented that the two chord edges of the ceramic heating element body are not properly fitted during the covering of the reducer, which would prevent the area from being fully heated and thus cause uneven heating of the reducer. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a ceramic heating element as described in this disclosure;

[0022] Figure 2 This is a schematic diagram of the first connection structure.

[0023] Explanation of reference numerals in the attached drawings: 1-Ceramic heating element body, 2-First connecting structure, 21-First connector, 211-First connecting band, 212-Button, 22-Second connector, 221-Second connecting band, 222-Fastener, 3-Second connecting structure, 31-First magnetic block, 32-Second magnetic block. Detailed Implementation

[0024] like Figure 1 As shown, a ceramic heating element disclosed herein includes a ceramic heating element body 1, at least two sets of first connecting structures 2 and at least one set of second connecting structures 3;

[0025] The ceramic heating element body 1 is fan-shaped;

[0026] The first connecting structure 2 includes a first connecting strip 211 and a first connecting member 21. The first connecting member 21 and the second connecting member 22 are adapted to each other. The first connecting member 21 is disposed on one arc edge of the ceramic heating element body 1 or on the outer side of the ceramic heating element body 1 near the arc edge, and is connected to the ceramic heating element body 1. The second connecting member 22 is disposed on the other arc edge of the ceramic heating element body 1 or on the outer side of the ceramic heating element body 1 near the arc edge, and is connected to the ceramic heating element body 1.

[0027] The second connection structure 3 includes a first magnetic block 31 and a second magnetic block 32 that are magnetically attracted to each other. The first magnetic block 31 is disposed on the outer side of the ceramic heating element body 1 and connected to the ceramic heating element body 1, and one end of the first magnetic block 31 is flush with one chord edge of the ceramic heating element body 1; the second magnetic block 32 is disposed on the outer side of the ceramic heating element body 1 and connected to the ceramic heating element body 1, and one end of the second magnetic block 32 is flush with the other chord edge of the ceramic heating element body 1.

[0028] Specifically, the ceramic heating element body 1 is set as a fan-shaped ring, similar to the unfolded diagram of the reducer. That is, the ceramic heating element body 1 can cover the outer periphery of the reducer well without any part being uncovered or overlapping.

[0029] The first connector 21 and the second connector 22 are connected to keep the ceramic heating element body 1 and the reducer relatively fixed. The first connector 21 can be set on the inner arc edge or the outer arc edge of the ceramic heating element body 1, or it can be set on the outer side of the ceramic heating element body 1 near the inner arc edge or the outer arc edge.

[0030] The second connecting structure 3 is used to make the two chord edges of the ceramic heating element body 1 fit together, so as to avoid gaps between the two chord edges after the ceramic heating element body 1 covers the reducer, which would cause uneven heating of the reducer and thus ensure the stability of the process. The first magnetic block 31 and the second magnetic block 32 can be magnets that attract each other.

[0031] For example, there are two sets of the first connecting structure 2, one set of which is disposed at the end of the ceramic heating element body 1, and the other set is disposed in the middle of the ceramic heating element body 1.

[0032] The first connector 21 is located on the outer side of the ceramic heating element body 1 near the inner arc edge and is connected to the ceramic heating element body 1. The second connector 22 is located on the outer side of the ceramic heating element body 1 near the outer arc edge and is connected to the ceramic heating element body 1.

[0033] The ceramic heating element body 1 is set as a fan-shaped ring, which conforms to the structural characteristics of a reducer whose diameter gradually increases or decreases from one end to the other. It can completely cover the reducer and will not cause partial overlap of the ceramic heating element body 1. Therefore, it can avoid the occurrence of uneven heating of the reducer.

[0034] With the first connecting structure 2, after the ceramic heating element body 1 covers the entire reducer, the ceramic heating element body 1 and the reducer are locked together by the first connecting structure 2, so as to prevent loosening during the heating of the reducer and ensure the stability of the connection between the ceramic heating element body 1 and the reducer. With the second connecting structure 3, it is prevented that the two chord edges of the ceramic heating element body 1 are not in contact during the covering of the reducer, so that the area cannot be fully heated and the reducer is heated unevenly.

[0035] Furthermore, such as Figure 2 As shown, the first connector 21 includes a first connecting strip 211, one end of which is connected to the ceramic heating element body 1, and the other end is provided with a plurality of buttons 212, which are arranged along the length direction of the first connecting strip 211; the second connector 22 includes a second connecting strip 221, one end of which is connected to the ceramic heating element body 1, and the other end is provided with a fastener 222 adapted to the button 212, which is arranged along the length direction of the second connecting strip 221.

[0036] For example, there are three buttons 212 and three fasteners 222. The buttons 212 are disposed on one side of the first connecting strip 211, and the fasteners 222 are disposed on one side of the second connecting strip 221. The orientation of the side of the first connecting strip 211 on which the buttons 212 are disposed can be the same as or opposite to the orientation of the side of the second connecting strip 221 on which the fasteners 222 are disposed. Specifically, the side of the first connecting strip 211 and the second connecting strip 221 facing away from the reducer is the front side, and the other side is the back side. The buttons 212 can be disposed on the front side or the back side of the first connecting strip 211; the fasteners 222 can be disposed on the front side or the back side of the second connecting strip 221. Preferably, the buttons 212 are disposed on the back side of the first connecting strip 211, and the fasteners 222 are disposed on the front side of the second connecting strip 221. Figure 2 The diagram shows a button 212 disposed on the front of the first connecting strip 211 and a fastener 222 disposed on the front of the second connecting strip 221.

[0037] Button 212 and fastener 222 can cooperate to lock. After the ceramic heating element body 1 covers the reducer, the first connecting strip 211 passes through the hollow part of the reducer, and the second connecting strip 221 passes through the hollow part of the reducer and intersects with the first connecting strip 211. After the intersection, adjust the position of button 212 and fastener 222. While ensuring that the ceramic heating element body 1 is in contact with the reducer, press button 212 against fastener 222 to connect button 212 and fastener 222, thereby locking the ceramic heating element body 1 and reducer.

[0038] Furthermore, the first connector 21 is disposed on the outer side of the ceramic heating element body 1 near the inner arc edge of the ceramic heating element body 1 and is bonded to the ceramic heating element body 1; the second connector 22 is disposed on the outer side of the ceramic heating element body 1 near the outer arc edge of the ceramic heating element body 1 and is bonded to the ceramic heating element body 1.

[0039] Furthermore, the first connector 21 is bonded to the ceramic heating element body 1 by a heat-insulating adhesive; the second connector 22 is bonded to the ceramic heating element body 1 by a heat-insulating adhesive.

[0040] Furthermore, the second connecting structure 3 is preferably a set. Specifically, the first magnetic block 31 is disposed on the outer side of the ceramic heating element body 1, and the length of the first magnetic block 31 is the same as the length of the chord edge of the ceramic heating element body 1; the second magnetic block 32 is disposed on the outer side of the ceramic heating element body 1, and the length of the second magnetic block 32 is the same as the length of the chord edge of the ceramic heating element body 1.

[0041] Since the length of the first magnetic block 31 is the same as the length of the chord edge of the ceramic heating element body 1, and the length of the second magnetic block 32 is the same as the length of the chord edge of the ceramic heating element body 1, the situation where the two chord edges of the ceramic heating element body 1 cannot be completely fitted due to different lengths can be avoided. Setting the lengths of both the first magnetic block 31 and the second magnetic block 32 to be the same as the length of the chord edge of the ceramic heating element body 1 can ensure that the two chord edges of the ceramic heating element body 1 fit together, avoiding uneven heating of the reducing tube.

[0042] Furthermore, the first magnetic block 31 is bonded to the ceramic heating element body 1 by a heat-insulating adhesive material; the second magnetic block 32 is bonded to the ceramic heating element body 1 by a heat-insulating adhesive material.

[0043] Specifically, the heat-insulating adhesive material is a single-component silicone rubber or an epoxy AB adhesive; for example, the single-component silicone rubber can be the 705 single-component silicone rubber produced by Dazexi; the epoxy AB adhesive can be the HR-420AB fast-drying silicone adhesive produced by Dongguan Huirui Adhesive Co., Ltd.

[0044] In the description of this disclosure, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing this disclosure and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this disclosure.

[0045] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims disclosed herein.

Claims

1. A ceramic heating element, characterized in that, include: The ceramic heating element body (1), at least two sets of first connecting structures (2) and at least one set of second connecting structures (3); The ceramic heating element body (1) is fan-shaped; The first connection structure (2) includes a first connector (21) and a second connector (22). The first connector (21) and the second connector (22) are adapted to each other. The first connector (21) is disposed on one arc edge of the ceramic heating element body (1) or on the outer side of the ceramic heating element body (1) near the arc edge, and is connected to the ceramic heating element body (1). The second connector (22) is disposed on the other arc edge of the ceramic heating element body (1) or on the outer side of the ceramic heating element body (1) near the arc edge, and is connected to the ceramic heating element body (1). The second connection structure (3) includes a first magnetic block (31) and a second magnetic block (32) that are magnetically attracted to each other. The first magnetic block (31) is disposed on the outer side of the ceramic heating element body (1) and connected to the ceramic heating element body (1). One end of the first magnetic block (31) is flush with one chord edge of the ceramic heating element body (1). The second magnetic block (32) is disposed on the outer side of the ceramic heating element body (1) and connected to the ceramic heating element body (1). One end of the second magnetic block (32) is flush with the other chord edge of the ceramic heating element body (1).

2. The ceramic heating element according to claim 1, characterized in that, The first connecting structure (2) has two sets, one set of which is located at the end of the ceramic heating element body (1), and the other set is located in the middle of the ceramic heating element body (1).

3. The ceramic heating element according to claim 1, characterized in that, The first connector (21) includes a first connecting strip (211), one end of which is connected to the ceramic heating element body (1), and the other end is provided with a plurality of buttons (212), which are arranged along the length direction of the first connecting strip (211); the second connector (22) includes a second connecting strip (221), one end of which is connected to the ceramic heating element body (1), and the other end is provided with a fastener (222) adapted to the button (212), which is arranged along the length direction of the second connecting strip (221).

4. The ceramic heating element according to claim 1, characterized in that, The first connector (21) is disposed on the outer side of the ceramic heating element body (1) near the inner arc edge of the ceramic heating element body (1) and is bonded to the ceramic heating element body (1); the second connector (22) is disposed on the outer side of the ceramic heating element body (1) near the outer arc edge of the ceramic heating element body (1) and is bonded to the ceramic heating element body (1); the second connector (22) is disposed on the outer side of the ceramic heating element body (1) near the outer arc edge of the ceramic heating element body (1) and is bonded to the ceramic heating element body (1).

5. The ceramic heating element according to claim 4, characterized in that, The first connector (21) is bonded to the ceramic heating element body (1) by a heat-insulating adhesive material; the second connector (22) is bonded to the ceramic heating element body (1) by a heat-insulating adhesive material.

6. The ceramic heating element according to claim 1, characterized in that, The second connection structure (3) has one set, the first magnetic block (31) is disposed on the outer side of the ceramic heating element body (1), and the length of the first magnetic block (31) is the same as the chord length of the ceramic heating element body (1); the second magnetic block (32) is disposed on the outer side of the ceramic heating element body (1), and the length of the second magnetic block (32) is the same as the chord length of the ceramic heating element body (1).

7. The ceramic heating element according to claim 6, characterized in that, The first magnetic block (31) is bonded to the ceramic heating element body (1) by a heat-insulating adhesive material; the second magnetic block (32) is bonded to the ceramic heating element body (1) by a heat-insulating adhesive material.

8. The ceramic heating element according to claim 5 or 7, characterized in that, The heat-insulating adhesive material is a single-component silicone rubber or epoxy AB adhesive.

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