Heating disc capable of improving heat dissipation effect

Abstract

The utility model discloses a heating plate capable of improving heat dissipation effect, which comprises a base plate and a wrapping part which are formed by compression molding, the bottom of the base plate is a plane, the top of the base plate is provided with a downward arc-shaped concave groove which is continuously arranged in a bending way, two ends of the groove are respectively provided with a pin hole which is vertical to the base plate, and an electric contact pin is arranged in the pin hole; the wrapping part is in a strip shape matched with the shape of the groove, the top of the cross section of the wrapping part is an arc-shaped surface, and the bottom of the cross section of the wrapping part is an arch cavity which is arched upwards in an arc shape; the edge of the wrapping part and the edge of the groove are in sealed connection to form an electric heating cavity, an electric heating wire is installed in the electric heating cavity, and the two ends of the electric heating wire are connected to the electric contact pins; the wrapping part is in a strip shape, the height of the groove in the base plate and the height of the arch cavity in the wrapping part are about half of the height of the electric heating wire, the electric heating wire cannot be deeply buried in the base plate, timely heat dissipation is facilitated, the heat dissipation area is increased through the arc-shaped face design of the wrapping part, timely heat dissipation is more facilitated, and the service life of the product is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to an electric heating device, in particular to an electric heating disc. BACKGROUND

[0002] The heating disc in prior art sets up electric heating groove on the bottom disc (pottery), installs and fixes the electric heating wire in the electric heating groove, adopts the filler (pottery) to cover the electric heating groove, the surface of the filler is flush with the surface of the bottom disc, finally the whole is sintered into shape, since the electric heating wire is spiral pipe shape, the electric heating groove needs to be set deeper, the electric heating wire is deeply buried in the bottom disc after forming, is not favorable for the electric heating wire to heat in time, influences the heating efficiency, also easily leads to the electric heating wire to burn off, influences the service life of the product. SUMMARY

[0003] In order to overcome the insufficient of prior art, the utility model provides a heating disc with long service life.

[0004] The utility model discloses the technical scheme that solves its technical problem is:

[0005] A kind of heating disc for improving heat dissipation effect, including the bottom disc and cladding portion of mould pressing forming, the bottom of the bottom disc is plane, top has the concave groove of continuous bending arrangement's downward arc shape recess, the both ends of the concave groove each have a pinhole with the bottom disc vertical, electric contact pin is installed in the pinhole;The shape of the cladding portion is strip shape that is adapted to the shape of the concave groove, the top of the cross section of the cladding portion is arc surface, and the bottom is the arch cavity of upward arc shape arching;The edge of the cladding portion is sealedly connected with the edge of the concave groove to form electric heating cavity, electric heating wire is installed in the electric heating cavity, and both ends of the electric heating wire are connected on the electric contact pin.

[0006] The height of the concave groove is 1-1.2 times of the diameter of the electric heating wire.

[0007] The height of the arch cavity is 1-1.2 times of the diameter of the electric heating wire.

[0008] The pinhole is provided with a fixing hole vertical to the bottom disc between the pinhole.

[0009] The fixing hole is located on the fixed portion, and the lower end of the electric contact pin extends out of the fixed portion.

[0010] The top of the electric contact pin and the connection position of the electric contact pin and the electric heating wire are wrapped by the cladding portion.

[0011] The surface of the bottom disc and the cladding portion is coated with a glaze layer.

[0012] The heat dissipation hole is provided between the concave groove.

[0013] The utility model discloses a beneficial effect is: the utility model discloses the cladding part is stripy, the height of the groove on the bottom disc and the arch cavity on the cladding part is about half of the electric heating wire, makes the electric heating wire not be buried in the bottom disc, is favorable to the timely emission of heat, and, the arc surface design of cladding part has increased the heat dissipation area, is more favorable to the timely emission of heat, prolongs the service life of product. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model is further explained below in combination with the drawings and examples.

[0015] Fig. 1 It is the structure schematic diagram of the utility model;

[0016] Fig. 2 It is the exploded view of the utility model;

[0017] Fig. 3 It is the bottom disc structure schematic diagram of the utility model.

[0018] Fig. 4 It is the cladding part structure schematic diagram of the utility model. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantage of the utility model more clear and obvious, the utility model is further explained in detail below in combination with specific implementation ways and referring to the drawings.It is to be explained that the embodiment of the utility model and the feature in the embodiment can be combined mutually in the case of not conflicting.

[0020] It is understood that these descriptions are only exemplary, and not to limit the scope of the utility model.

[0021] Referring to Figs. 1 to 4The utility model provides a heat -generating disc of improving the heat dissipation effect, including the bottom disc 1 and the cladding part 2 of mould pressing forming, the bottom of bottom disc 1 is plane, and the top has the concave groove 11 of continuous bending arrangement's downward arc concave, the both ends of concave groove 11 each have a pinhole 12 with bottom disc 1 vertical, and the electric contact pin 3 is installed in pinhole 12, the shape of cladding part 2 is the strip with the shape of concave groove 11 adapts, and the cross section top of cladding part 2 is arc surface, and the bottom is the arch cavity 21 of upward arc arch, the height of concave groove 11 and the height of arch cavity 21 are 1-1.2 times of electric heating wire 4 diameter, the edge of cladding part 2 is sealedly connected with the edge of concave groove 11 and forms electric heating cavity, and electric heating wire 4 is installed in electric heating cavity, and the both ends of electric heating wire 4 are connected on electric contact pin 3, the cladding part of the utility model is strip, and the height of the concave groove on the bottom disc and the arch cavity on the cladding part is about half of the electric heating wire, so that the electric heating wire will not be buried in the bottom disc, is favorable for the timely emission of heat, and, the arc surface design of cladding part increases the heat dissipation area, is more favorable for the timely emission of heat, prolongs the service life of product.

[0022] The pinhole 12 is provided with the fixed hole 13 vertical with the bottom disc 1, and the fixed part 5 extending downward is integrally formed in the pinhole 12 part, the fixed hole 13 is located on the fixed part 5, and the lower end of electric contact pin 3 extends outside the fixed part 5, in use, the electric contact pin is connected with the electricity taking hole on the electricity taking connector, and is connected with the external power supply, to supply power for electric heating wire.

[0023] The cladding part 2 wraps the top of electric contact pin 3 and the connecting part of electric contact pin 3 and electric heating wire 4, the cladding part covers the end of electric contact pin 3, forms a closed space in electric heating cavity, and improves the safety of heat -generating disc.

[0024] The surface of bottom disc 1 and cladding part 2 is coated with glaze, the glaze has high heat radiation rate, coating glaze on the surface of bottom disc 1 and cladding part 2 can efficiently transfer the heat energy generated by heating disc to the heated object, and the glaze can also fill the tiny pores on the surface of heating disc, so that the contact between heating disc and heated object is more close, and the heat conduction efficiency is improved.

[0025] The heat dissipation hole 6 is arranged between the concave groove 11, and the heat dissipation hole is favorable for reducing the amount of raw materials, reducing the weight of product, and making the product applicable to the products such as air heater for airflow heating.

[0026] In the present application, the term "a plurality of" means two or more, unless otherwise expressly specified. The term "and / or" as used herein encompasses all possibilities of combinations of one or more relevant items. The terms "mounting", "connected", "connecting", "fixed", and the like, should be interpreted broadly, for example, "connected" can be fixed connection, or detachable connection, or integrally connected; "connected" can be directly connected, or indirectly connected through intermediate media. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] It should be noted that when an element is referred to as being "mounted", "attached", "fixed" or "disposed" on another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar expressions used herein are for illustrative purposes only and are not intended to be limiting.

[0028] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "a specific embodiment", and the like, means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0029] Although embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A heating plate with improved heat dissipation effect, characterized in that The invention comprises a molded chassis (1) and a covering portion (2), wherein the bottom of the chassis (1) is a plane, and the top has a continuously bent and arranged downward arc-shaped recessed groove (11), and each end of the groove (11) has a pin hole (12) perpendicular to the chassis (1), and an electric contact pin (3) is installed in the pin hole (12); the shape of the covering portion (2) is a strip adapted to the shape of the groove (11), the top of the cross section of the covering portion (2) is an arc surface, and the bottom is an upward arc-shaped arched cavity (21); the edge of the covering portion (2) is sealed and connected to the edge of the groove (11) to form an electric heating cavity, and an electric heating wire (4) is installed in the electric heating cavity, and the two ends of the electric heating wire (4) are connected to the electric contact pin (3).

2. The heating plate for improving heat dissipation according to claim 1, characterized in that The height of the groove (11) is 1-1.2 times the diameter of the heating wire (4).

3. The heating plate for improving heat dissipation according to claim 1, characterized in that The height of the arch cavity (21) is 1-1.2 times the diameter of the heating wire (4).

4. The heating plate for improving heat dissipation according to claim 1, characterized in that A fixing hole (13) perpendicular to the chassis (1) is provided between the pin holes (12).

5. The heating plate for improving heat dissipation according to claim 4, characterized in that A downwardly extending fixing portion (5) is integrally formed at the pin hole (12), the fixing hole (13) is located on the fixing portion (5), and the lower end of the electric contact pin (3) extends out of the fixing portion (5).

6. The heating plate for improving heat dissipation according to claim 1, characterized in that The covering portion (2) covers the top of the electric contact needle (3) and the connection portion between the electric contact needle (3) and the heating wire (4).

7. The heating plate for improving heat dissipation according to claim 1, characterized in that A glaze layer is coated on the surface of the chassis (1) and the covering portion (2).

8. The heating plate for improving heat dissipation according to claim 1, characterized in that Heat dissipation holes (6) are provided between the grooves (11).

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