High-efficiency energy-saving heating device

Abstract

The utility model relates to high -efficient energy -conserving heating ware, including PTC heating body and the conductor installation axle that penetrates PTC heating body, be equipped with the avoidance hole that avoids the conductor installation axle on PTC heating body, be equipped with a plurality of ventilation holes on the lateral wall of PTC heating body, the first conductive pad ring and the second conductive pad ring are equipped with respectively on the both sides of PTC heating body, and the inner diameter of first conductive pad ring and second conductive pad ring are all less than the diameter of avoidance hole, the both ends of conductor installation axle are equipped with the positioning member that first conductive pad ring and second conductive pad ring are pressed tightly on PTC heating body respectively, the first electrode terminal and the second electrode terminal are equipped with axially in turn in the side of PTC heating body, and first electrode terminal and first conductive pad ring press tightly contact, and another second electrode terminal and conductor installation axle pass through positioning member press tightly contact, the utility model discloses whole simple structure, heating is even, and the thermal efficiency is higher, and can realize constant temperature control without the temperature control circuit of outside.

Description

Technical Field

[0001] This utility model relates to the field of electric heating element technology, and in particular to a high-efficiency energy-saving heater. Background Technology

[0002] In everyday hot air products, such as hair dryers, the heating element currently typically uses iron-chromium or nickel-chromium wire wound around a mica frame to heat the blown air. This winding process involves multiple layers, resulting in a significant heat accumulation effect. Furthermore, the mica frame is quite large, occupying considerable assembly space and preventing further reduction in the overall product size. Additionally, the heating process generates magnetic energy, leading to low heat utilization efficiency. Moreover, the temperature at some points can reach over 1000 degrees Celsius when powered on, indicating uneven heating. This necessitates temperature control circuitry for overheat protection, indirectly increasing costs.

[0003] Therefore, it is necessary to design new electrothermal elements to overcome the shortcomings of traditional products. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a high-efficiency and energy-saving heater, which can effectively solve the aforementioned problems.

[0005] To achieve the above requirements, the technical solution adopted by this utility model to solve its technical problem is as follows:

[0006] A high-efficiency and energy-saving heater is provided, comprising a sheet-shaped PTC heating element and a conductor mounting shaft passing through the PTC heating element; the PTC heating element has a clearance hole to avoid the conductor mounting shaft; multiple ventilation holes are provided on the side wall of the PTC heating element between its edge and the clearance hole; a first conductive washer and a second conductive washer are respectively provided on the two side walls of the PTC heating element, the inner diameter of the first conductive washer and the second conductive washer being smaller than the diameter of the clearance hole; positioning members are respectively provided at both ends of the conductor mounting shaft to press the first conductive washer and the second conductive washer against the PTC heating element; a first electrode terminal and a second electrode terminal are sequentially provided axially on one side of the PTC heating element, the first electrode terminal being in close contact with the first conductive washer, and the second electrode terminal being in close contact with the conductor mounting shaft through the positioning member.

[0007] The high-efficiency energy-saving heater of this utility model has an insulating member between the first electrode terminal and the second electrode terminal; the insulating member is a ring and is sleeved on the conductor mounting shaft; when assembled, the first electrode terminal and the second electrode terminal are respectively located at both ends of the insulating member.

[0008] The high-efficiency energy-saving heater of this utility model has an inner diameter of the first conductive pad ring that is larger than the inner diameter of the second conductive pad ring. The end of the insulating member facing the PTC heating element has an annular extension that passes through the inner cavity of the first conductive pad ring and extends into the clearance hole. The length of the annular extension extending into the clearance hole is at least greater than half the length of the clearance hole.

[0009] The high-efficiency energy-saving heater of this utility model includes two positioning components, one of which is a bolt head coaxially and integrally connected with the conductor mounting shaft, and the other is a conductor nut coaxially and threadedly connected with the conductor mounting shaft; when assembled in place, the conductor nut abuts the second electrode terminal against the insulating component.

[0010] The high-efficiency energy-saving heater of this utility model includes a first electrode terminal and a second electrode terminal, each comprising an annular body and an extension arm radially disposed on the outer peripheral sidewall of the annular body; the annular body of the first electrode terminal is coaxially sleeved on the outside of the annular extension, and the annular body of the second electrode terminal is coaxially sleeved on the outside of the conductor mounting shaft.

[0011] In the high-efficiency energy-saving heater of this utility model, the outer diameter of the second electrode terminal is smaller than the outer diameter of the insulating member, and an annular abutment is coaxially provided on the outer side wall of the conductor nut near the second electrode terminal. The outer diameter of the annular abutment is larger than the outer diameter of the annular body of the second electrode terminal. When assembled, the annular abutment presses the annular body of the second electrode terminal against the insulating member.

[0012] The high-efficiency energy-saving heater of this utility model has a bent portion at the end of the extension arm that is parallel to the conductor mounting axis, and the bent portion is oriented away from the PTC heating element.

[0013] The high-efficiency energy-saving heater of this utility model has an extension arm with a thin sheet structure, and the bent portion has extension portions on both sides in the width direction.

[0014] The advantages of this invention are: simple overall structure and uniform heating; compared with the traditional resistance wire heating method, it has higher thermal efficiency because it does not generate magnetic energy conversion loss; and by utilizing the heating characteristics of the PTC heating element itself, it can achieve constant temperature control without external temperature control circuit, which greatly reduces the manufacturing cost of the product. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is an overall structural diagram of the present invention.

[0017] Figure 2 yes Figure 1 The diagram shows the state of the explosion.

[0018] Figure 3 yes Figure 2 Another perspective view.

[0019] Figure 4 This is an axial sectional view of the present invention. Detailed Implementation

[0020] The terms "first," "second," "third," and "fourth," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0021] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0022] "Multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0023] Furthermore, the terms indicating orientation, such as "up," "down," "left," "right," "upper end," "lower end," and "longitudinal," are all based on the posture and position of the device or equipment described in this solution during normal use.

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of this utility model. Obviously, the described embodiments are some, but not all, embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] The preferred embodiment of this utility model features a high-efficiency energy-saving heater, such as... Figure 1-4 As shown, it includes a circular PTC heating element 10 and a conductor mounting shaft 20 passing through the PTC heating element 10. Of course, the PTC heating element can also be other shapes, such as quadrilaterals, pentagons, other polygons, or irregular shapes. Its specific shape can be determined according to the actual installation situation. The conductor mounting shaft 20 is a screw. The PTC heating element 10 is provided with a clearance hole 101 to avoid the conductor mounting shaft 20; multiple ventilation holes 102 are provided on the side wall of the PTC heating element 10 between its edge and the clearance hole 101 and are evenly arranged. When installed inside a product with an air duct, the air in the air duct can be evenly distributed to each ventilation hole 102 for independent heating.

[0026] Furthermore, a first conductive washer 30 and a second conductive washer 40 are respectively provided on the two side walls of the PTC heating element 10. The outer contour of the first conductive washer 30 is square, and the outer contour of the second conductive washer 40 is circular. The inner holes of the first conductive washer 30 and the second conductive washer 40 are both circular, and their inner diameters are smaller than the diameter of the clearance hole 101. Positioning members are provided at both ends of the conductor mounting shaft 20 to press the first conductive washer 30 and the second conductive washer 40 against the PTC heating element 10, so as to ensure that the first conductive washer 30 and the second conductive washer 40 are tightly connected to the two pin terminals of the PTC heating element 10.

[0027] Furthermore, a first electrode terminal 50 and a second electrode terminal 60 are sequentially arranged axially on one side of the PTC heating element 10. The first electrode terminal 50 is in close contact with the first conductive pad ring 30, and the second electrode terminal 60 is in close contact with the conductor mounting shaft 20 through a positioning member close to it, so that the conductor mounting shaft 20 and the second conductive pad ring 40 form a connecting line connecting the second electrode terminal 60 and the pin of the PTC heating element 10.

[0028] The heater provided in this embodiment has a simple overall structure and provides uniform heating. Compared with traditional resistance wire heating, it has higher thermal efficiency because it does not generate magnetic energy conversion loss. Moreover, by utilizing the Curie point heating characteristic of the PTC heating element 10, that is, the resistance of the PTC becomes extremely large after the temperature reaches its threshold maximum, which limits the current flow and thus limits the further increase in temperature. This achieves self-temperature control without the need for an external temperature control circuit, greatly reducing the manufacturing cost of the product.

[0029] In this embodiment, an insulating member 70 is provided between the first electrode terminal 50 and the second electrode terminal 60. The insulating member 70 is made of insulating ceramic, but other high-temperature resistant materials, such as commonly used quartz or asbestos products, can also be used. The insulating member 70 is a ring-shaped part and is sleeved on the conductor mounting shaft 20. When assembled, the first electrode terminal 50 and the second electrode terminal 60 are located at the two ends of the insulating member 70, respectively. The insulating member 70 can prevent the first electrode terminal 50 and the second electrode terminal 60 from short-circuiting due to contact.

[0030] In this embodiment, the inner diameter of the first conductive pad ring 30 is larger than the inner diameter of the second conductive pad ring 40. The end of the insulating member 70 facing the PTC heating element 10 has an annular extension 701 that passes through the inner cavity of the first conductive pad ring 30 and extends into the clearance hole 101. The annular extension 701 is cylindrical, and the length of the annular extension 701 extending into the clearance hole 101 is at least greater than half the length of the clearance hole 101. In practice, half of it extends into two-thirds of the clearance hole 101 to prevent the conductor mounting shaft 20 from directly contacting the inner wall of the clearance hole 101 when it is misaligned, thus achieving the effect of protection and correction.

[0031] In this embodiment, one of the two positioning components is a bolt head 80 that is coaxially and integrally connected with the conductor mounting shaft 20, and the other positioning component is a conductor nut 90 that is coaxially and threadedly connected with the conductor mounting shaft 20. When assembled in place, the conductor nut 90 abuts the second electrode terminal 60 against the insulating member 70, thereby pressing the insulating member 70, the first electrode terminal 50, and the first conductive washer ring 30 against the PTC heating element 10, ensuring the stability of the overall structure after installation.

[0032] In this embodiment, both the first electrode terminal 50 and the second electrode terminal 60 include an annular body a1 and an extension arm a2 radially disposed on the outer peripheral sidewall of the annular body a1. When assembled, the two extension arms a2 are located on both sides of the conductor mounting shaft 20. The annular body a1 of the first electrode terminal 50 is coaxially sleeved on the outside of the annular extension 701, and the annular body a1 of the second electrode terminal 60 is coaxially sleeved on the outside of the conductor mounting shaft 20 and is abutted against the insulating member 70 by the conductor nut 90.

[0033] In this embodiment, the outer diameter of the second electrode terminal 60 is smaller than the outer diameter of the insulating member 70. The conductor nut 90 has a coaxial annular abutment portion 901 on the outer side wall of one end near the second electrode terminal 60. The outer diameter of the annular abutment portion 901 is larger than the outer diameter of the annular body a1 of the second electrode terminal 60. The end face of the annular abutment portion 901 facing the PTC heating element is flush with the adjacent end face of the conductor nut. When assembled, the annular abutment portion 901 presses the annular body a1 of the second electrode terminal 60 against the insulating member 70. Through the double fixing effect of the annular body a1 and the conductor nut 90, the fit of the first electrode terminal 50 and the second electrode terminal 60 and the stability after installation can be guaranteed.

[0034] In this embodiment, the end of the extension arm a2 has a bent portion a21 parallel to the conductor mounting axis 20, and the bent portion a21 faces away from the PTC heating element 10. Specifically, the extension arm a2 is a thin sheet structure, and the bent portion a21 has extension portions a22 on both sides in its width direction. That is, the width of the bent portion a21 is greater than the width of the end of the extension arm a2 near the annular body a1, so as to ensure that there is more area for welding operation when connecting external wires.

[0035] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A high-efficiency energy-saving heater, characterized in that, The device includes a sheet-shaped PTC heating element and a conductor mounting shaft passing through the PTC heating element; the PTC heating element has a clearance hole to avoid the conductor mounting shaft; multiple ventilation holes are provided on the side wall of the PTC heating element between its edge and the clearance hole; a first conductive washer and a second conductive washer are respectively provided on the two side walls of the PTC heating element, the inner diameter of the first conductive washer and the second conductive washer are both smaller than the diameter of the clearance hole; positioning members are provided at both ends of the conductor mounting shaft to press the first conductive washer and the second conductive washer against the PTC heating element; a first electrode terminal and a second electrode terminal are sequentially provided on one side of the PTC heating element, the first electrode terminal is in close contact with the first conductive washer, and the second electrode terminal is in close contact with the conductor mounting shaft through the positioning member.

2. The high-efficiency energy-saving heater according to claim 1, characterized in that, An insulating member is provided between the first electrode terminal and the second electrode terminal; the insulating member is an annular part and is sleeved on the conductor mounting shaft; when assembled, the first electrode terminal and the second electrode terminal are respectively located at both ends of the insulating member.

3. The high-efficiency energy-saving heater according to claim 2, characterized in that, The inner diameter of the first conductive pad ring is larger than the inner diameter of the second conductive pad ring. The end of the insulating member facing the PTC heating element has an annular extension that passes through the inner cavity of the first conductive pad ring and extends into the clearance hole. The length of the annular extension extending into the clearance hole is at least greater than half the length of the clearance hole.

4. The high-efficiency energy-saving heater according to claim 3, characterized in that, The two positioning components are, firstly, a bolt head coaxially and integrally connected to the conductor mounting shaft, and secondly, a conductor nut coaxially and threadedly connected to the conductor mounting shaft; when assembled in place, the conductor nut abuts the second electrode terminal against the insulating component.

5. The high-efficiency energy-saving heater according to claim 4, characterized in that, Both the first electrode terminal and the second electrode terminal include an annular body and an extension arm radially disposed on the outer peripheral sidewall of the annular body; the annular body of the first electrode terminal is coaxially sleeved on the outside of the annular extension, and the annular body of the second electrode terminal is coaxially sleeved on the outside of the conductor mounting shaft.

6. The high-efficiency energy-saving heater according to claim 5, characterized in that, The outer diameter of the second electrode terminal is smaller than the outer diameter of the insulating member. The outer side wall of the conductor nut near the second electrode terminal is coaxially provided with an annular abutment portion. The outer diameter of the annular abutment portion is larger than the outer diameter of the annular body of the second electrode terminal. When assembled, the annular abutment portion presses the annular body of the second electrode terminal against the insulating member.

7. The high-efficiency energy-saving heater according to claim 5, characterized in that, The end of the extension arm has a bend parallel to the conductor mounting axis, the bend being oriented away from the PTC heating element.

8. The high-efficiency energy-saving heater according to claim 7, characterized in that, The extension arm is a thin sheet structure, and the bent portion has extension portions on both sides in its width direction.

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