Inner hole type double-circuit ceramic heating core

Abstract

The utility model discloses an inner hole type double-circuit ceramic heating core, which comprises an upper ceramic chip, a lower ceramic chip, lower electrode slices, a heating circuit and a wire, the lower electrode slices are positioned at two ends of the heating circuit and are connected with the wire, the upper side surface of the upper ceramic chip is provided with electrode etching holes communicated with the lower electrode slices, and the electrode etching holes are communicated with the heating circuit. An upper electrode plate is arranged in the electrode etching hole, one end, located in the electrode etching hole, of the wire is connected with the opposite side faces of the upper electrode plate and the lower electrode plate, four welding holes are formed in the upper side face of the upper electrode plate in a rectangular mode, and the upper electrode plate and the lower electrode plate are connected and fixed through the welding holes; the utility model has the advantage of preventing the lead from being separated.

Description

Technical Field

[0001] The utility model belongs to the technical field of ceramic heating cores and relates to an inner hole type double circuit ceramic heating core. Background Art

[0002] Ceramic heating core is a kind of element used for heating, which is commonly found in various electrical appliances, such as electric kettles, electric heaters, electronic cigarettes, air humidifiers, etc. Ceramic heating core is made of ceramic material and resistance wire, and has the advantages of excellent high temperature resistance, stable heating effect and long life.

[0003] The utility model patent with authorization announcement number CN219740626U discloses a dual-resistance ceramic heating core, including a ceramic disc and three leads arranged at one end of the ceramic disc, a circular heating core body is arranged inside the ceramic disc, and the heating core body includes a first heating circuit and a second heating circuit arranged offset from the first heating circuit, the first heating circuit and the second heating circuit are parallel and concentric up and down, the three leads are respectively connected to the first heating circuit and the second heating circuit, and the first heating circuit and the second heating circuit are only connected to two leads; this technical solution realizes the function of switching the gears of the heating core by energizing the three wires, but the connection method between the electrode sheet and the wire in this technical solution is only welding, and the connection strength is limited, which may cause the wire to detach from the electrode sheet. Utility Model Content

[0004] In view of the above problems, the utility model proposes an inner hole type double circuit ceramic heating core, which well solves the problems in the prior art.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows; an inner hole type double circuit ceramic heating core, comprising an upper ceramic sheet, a lower ceramic sheet, a lower electrode sheet, a heating circuit and a wire, the lower electrode sheet is located at both ends of the heating circuit, and the lower electrode sheet is connected to the wire, an electrode hole located above the electrode sheet is opened on the upper side of the upper ceramic sheet, an upper electrode sheet is arranged in the electrode hole, one end of the wire located in the electrode hole is connected to the opposite sides of the upper electrode sheet and the lower electrode sheet, the upper side of the upper electrode sheet is rectangularly arranged with four welding holes, and the upper electrode sheet and the lower electrode sheet are connected and fixed by the welding holes.

[0006] Furthermore, the heating circuit includes a first heating circuit and a second heating circuit which are reciprocatingly arranged on opposite sides of the upper ceramic sheet and the lower ceramic sheet, one end of the first heating circuit and the second heating circuit are connected and merged, and both ends of the first heating circuit and the second heating circuit are connected to the lower electrode sheet.

[0007] Furthermore, the upper and lower sides of the upper ceramic sheet and the lower ceramic sheet are vertically provided with interconnected inner holes, and the diameter of the inner holes is 6 mm.

[0008] Further, the wire includes a nickel wire and a Teflon sleeve covering the outer side of the nickel wire, and the front and rear ends of the nickel wire extend out of the Teflon sleeve.

[0009] Further, one end of the tail end of the nickel wire extending out of the Teflon sleeve is smeared with tin water.

[0010] Further, a layer of rubber is filled on the upper side of the upper electrode plate and the side surface of the upper electrode plate in contact with the upper ceramic plate.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model strengthens the connection strength between the wire and the ceramic heating core through the upper electrode plate and the lower electrode plate, prevents the wire from detaching from the ceramic heating core during use, improves the reliability of the ceramic heating core during use, and realizes multi-stage control of the heating efficiency of the ceramic heating core through the first heating circuit and the second heating circuit, thereby improving the practicability of the ceramic heating core. Description of the Drawings

[0013] Figure 1 is a top view of the utility model;

[0014] Figure 2 is the Figure 1 structural schematic diagram of the utility model;

[0015] Figure 3 is the Figure 1 cross-sectional view of part A-A of the utility model.

[0016] In the figure, 1 - upper ceramic plate; 2 - lower ceramic plate; 3 - first heating circuit; 4 - second heating circuit; 5 - lower electrode plate; 6 - upper electrode plate; 7 - inner hole; 8 - wire; 101 - electrode engraving hole; 601 - welding hole; 801 - nickel wire; 802 - Teflon sleeve. Detailed Embodiments

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0018] Such as Figure 1 , Figure 2 , Figure 3As shown in the figure, an inner-hole type double-circuit ceramic heating core includes an upper ceramic sheet 1, a lower ceramic sheet 2, a lower electrode sheet 5, a heating circuit, and a wire 8. The heating circuit is printed on the opposite side surfaces of the upper ceramic sheet 1 and the lower ceramic sheet 2. The lower electrode sheet 5 is located at both ends of the heating circuit, and the upper side surface of the lower electrode sheet 5 is welded to the wire 8. An electrode engraving hole 101 is provided on the upper side surface of the upper ceramic sheet 1 above the lower electrode sheet 5. An upper electrode sheet 6 is arranged in the electrode engraving hole 101. One end of the wire 8 located in the electrode engraving hole 101 is connected to the opposite side surfaces of the upper electrode sheet 6 and the lower electrode sheet 5. Four welding holes 601 are arranged in a rectangular pattern on the upper side surface of the upper electrode sheet 6. The upper electrode sheet 6 and the lower electrode sheet 5 are connected and fixed through the welding holes 601.

[0019] During use, the staff energizes the heating circuit through the wire 8 and the lower electrode sheet 5. After being energized, the heating circuit generates heat and conducts the heat generated by the heating circuit to the outside through the upper ceramic sheet 1 and the lower ceramic sheet 2. When installing the wire 8, the staff places the front and back of the wire 8 on the upper side surface of the lower electrode sheet 5 and fixes it by welding. Then, the upper electrode sheet 6 is placed in the electrode engraving hole 101, and the upper electrode sheet 6 is pressed so that the wire 8 is clamped between the upper electrode sheet 6 and the lower electrode sheet 5. Then, the staff welds and fixes the upper electrode sheet 6 and the lower electrode sheet 5 together through the welding holes 601, thereby increasing the connection strength between the upper electrode sheet 6 and the lower electrode sheet 5, and at the same time enhancing the connection strength between the wire 8 and the upper electrode sheet 6 and the lower electrode sheet 5, preventing the wire 8 from detaching from the upper electrode sheet 6 and the lower electrode sheet 5, and improving the reliability of the ceramic heating core during use.

[0020] In this embodiment, the heating circuit includes a first heating circuit 3 and a second heating circuit 4 printed in a reciprocating and tortuous manner on the opposite side surfaces of the upper ceramic sheet 1 and the lower ceramic sheet 2. One end of the first heating circuit 3 and the second heating circuit 4 is connected and converged. Both ends of the first heating circuit 3 and the second heating circuit 4 are connected to the lower electrode sheet 5. During use, the staff can connect different wires 8 to the non-contact ends of the first heating circuit 3 and the second heating circuit 4 respectively, and then switch the voltages in the first heating circuit 3 and the second heating circuit 4 by connecting different wires 8, thereby controlling the different heating efficiencies of the ceramic heating core and realizing multi-stage control during the heating of the ceramic heating core.

[0021] In this embodiment, inner holes 7 are vertically opened on the upper and lower side surfaces of the upper ceramic sheet 1 and the lower ceramic sheet 2, and the diameter of the inner holes 7 is 6 mm. During use, the inner holes 7 can facilitate the convenience of installing and positioning the ceramic heating core and improve the installation efficiency of the ceramic heating core.

[0022] In this embodiment, the wire 8 includes a nickel wire 801 and a Teflon sleeve 802 coated on the outer side of the nickel wire 801. The front and rear ends of the nickel wire 801 extend out of the Teflon sleeve 802. During use, the Teflon sleeve 802 has good insulation and corrosion resistance, can provide good protection for the nickel wire 801, reduce the risk of electric shock to the staff, and extend the service life of the ceramic heating core.

[0023] In this embodiment, one end of the tail of the nickel wire 801 extending out of the Teflon sleeve 802 is dipped with solder. During use, the solder at the tail of the nickel wire 801 can facilitate the welding and fixing of the nickel wire 801 to the external wire circuit, and improve the solderability of the nickel wire 801.

[0024] In this embodiment, a layer of rubber is filled on the upper side of the upper electrode plate 6 and the side surface where the upper electrode plate 6 contacts the upper ceramic plate 1. During use, the rubber strengthens the connection strength between the upper electrode plate 6 and the upper ceramic plate 1 during connection. At the same time, the rubber has excellent insulation and can prevent the staff from directly contacting the upper electrode plate 6, thereby reducing the risk of electric shock to the staff.

[0025] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An inner hole type double circuit ceramic heating core, comprising an upper ceramic sheet, a lower ceramic sheet, a lower electrode sheet, a heating circuit and a wire, wherein the lower electrode sheet is located at both ends of the heating circuit and is connected to the wire, characterized in that: An electrode hole located above the electrode sheet is provided on the upper side of the upper ceramic sheet, an upper electrode sheet is provided in the electrode hole, one end of the wire located in the electrode hole is connected to the opposite sides of the upper electrode sheet and the lower electrode sheet, four welding holes are arranged in a rectangular shape on the upper side of the upper electrode sheet, and the upper electrode sheet is connected and fixed to the lower electrode sheet through the welding holes.

2. The inner hole type double circuit ceramic heating core according to claim 1, characterized in that: The heating circuit includes a first heating circuit and a second heating circuit which are reciprocatingly arranged on opposite sides of the upper ceramic sheet and the lower ceramic sheet, one end of the first heating circuit and the second heating circuit are connected and merged, and both ends of the first heating circuit and the second heating circuit are connected to the lower electrode sheet.

3. The inner hole type double circuit ceramic heating core according to claim 1, characterized in that: The upper and lower sides of the upper ceramic sheet and the lower ceramic sheet are vertically provided with interconnected inner holes, and the diameter of the inner holes is 6 mm.

4. The inner hole type double circuit ceramic heating core according to claim 1, characterized in that: The conductor comprises a nickel wire conductor and a Teflon sleeve wrapped on the outer side of the nickel wire conductor, and the front and rear ends of the nickel wire conductor extend out of the Teflon sleeve.

5. The inner hole type double circuit ceramic heating core according to claim 4, characterized in that: One end of the nickel wire lead extending out of the Teflon sleeve is stained with tin water.

6. The inner hole type double circuit ceramic heating core according to claim 1, characterized in that: The upper side surface of the upper electrode sheet and the side surface of the upper electrode sheet in contact with the upper ceramic sheet are filled with a layer of rubber.

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