CN220436424U

CN220436424U - Lamp shell

Info

Publication number: CN220436424U
Application number: CN202321520430.7U
Authority: CN
Inventors: 张溶冰; 朱纪罡
Original assignee: Shanghai Zhixian Technology Co ltd
Current assignee: Shanghai Zhixian Technology Co ltd
Priority date: 2023-06-14
Filing date: 2023-06-14
Publication date: 2024-02-02
Anticipated expiration: 2033-06-14

Abstract

The utility model discloses a lamp shell, which comprises an outer metal shell, an inner electrode and a conductive layer positioned between the metal shell and the inner electrode; insulating materials are respectively filled between the conducting layer and the outer metal shell and between the conducting layer and the inner electrode, and a safe distance is kept between the conducting layer and the outer metal shell. The structure can effectively reduce electromagnetic radiation generated by the whole circuit during normal operation, and ensure that the product meets the safety requirement.

Description

Lamp shell

Technical Field

The utility model relates to the field of lamps, in particular to a lamp shell.

Background

In existing light fixture devices, one or more external power supplies are typically used. As shown in fig. 1, these external power supplies are usually connected to the led as a light source by wires, however, this connection method may cause a certain safety problem. The external power supplies can pass the electromagnetic compatibility test in the non-connection state, but once the external power supplies are connected with the light source through the connecting wire, the whole working circuit can generate radiation instead when the light source starts to work normally, so that the electromagnetic compatibility test cannot be passed.

The inventor finds that the above problem occurs through repeated research experiments, and the magnetic property of the metal is excited under the condition of high-frequency oscillation when the metal is in an electrified state, and charges are transferred along the metal body, so that radiation is generated outwards, and the whole working circuit cannot pass the electromagnetic compatibility test.

Disclosure of Invention

In order to solve the above problems, the present utility model provides a lamp housing, in which a conductive layer is disposed between an inner electrode and an outer metal shell, an insulating material is filled between the conductive layer and the outer metal shell, and a safe distance between the conductive layer and the outer metal shell is set according to the property of the insulating material, so that when the inner electrode is in a working state, an overall circuit can pass electromagnetic energy test, and the safety performance of a product is improved.

According to an aspect of the present utility model, there is provided a lamp housing comprising an outer metal shell, an inner electrode, and a conductive layer between the metal shell and the inner electrode; insulating materials are respectively filled between the conducting layer and the outer metal shell and between the conducting layer and the inner electrode, a safe distance is kept between the conducting layer and the outer metal shell, and the product of the dielectric strength coefficient of the insulating materials and the safe distance is not less than 1500.

Drawings

The foregoing and other objects, features and advantages of the utility model will be apparent from the following more particular descriptions of exemplary embodiments of the utility model as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the utility model.

Fig. 1 shows a schematic structural diagram of a lamp device according to the prior art;

FIG. 2 shows a schematic structural view of an embodiment of a luminaire housing cross-section of the present utility model;

figures 3-5 show a schematic structural view of an embodiment of a lamp housing cross-section of the present utility model.

Detailed Description

The utility model will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present utility model are illustrated in the drawings, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art. In order to facilitate understanding of the present utility model, unnecessary components are also illustrated in the drawings, but the present utility model is not limited to the unnecessary components.

Referring to fig. 2, according to some embodiments of the utility model, a luminaire housing comprises: an outer metal case 110, an inner electrode 120, and a conductive layer 130 between the metal case 110 and the inner electrode 120. Wherein, insulating materials are respectively filled between the conductive layer 130 and the outer metal shell 110 and between the conductive layer 130 and the inner electrode 120, a safe distance is kept between the conductive layer 130 and the outer metal shell 110, and the product of the dielectric strength coefficient of the insulating materials and the safe distance is not less than 1500.

By adopting the above structural design, the conductive layer 130 divides the insulating material between the inner electrode 120 and the outer metal shell 110 into two pieces, and when the inner electrode 120 is in a working state, the conductive layer 130 and the inner electrode 120 form a capacitor, so that charges are accumulated in the conductive layer 130 and a certain safety distance is kept between the conductive layer 130 and the outer metal shell 110, thereby enabling electromagnetic energy transmitted through the outer metal shell 110 to meet safety requirements.

According to some embodiments of the present utility model, the conductive layer 130 may employ the same type of pillar structure as the inner electrode 120.

In some embodiments, referring to fig. 3, the outer metal shell 110 is a hollow cylinder and the inner electrode 120 is a cube or cuboid. Wherein the conductive layer 130 may be a hollow cube or a cuboid.

In some embodiments, referring to fig. 4, the outer metal shell 110 is a hollow cylinder and the inner electrode 120 is a cylinder. Wherein the conductive layer 130 may be a hollow cylinder.

In certain embodiments, referring to fig. 5, the outer metal shell 110 is a hollow cylinder and the inner electrode 120 is a cube or cuboid. Wherein, in one embodiment, the conductive layer 130 may be a hollow cube or cuboid, and the safety distance is a space between corners thereof and the outer metal case 110. In another embodiment, the conductive layer 130 may also be a hollow cylinder.

According to another aspect of the utility model, the conductive layer 130 may also be a separate sheet-like housing or housings.

According to some embodiments of the present utility model, the conductive layer 130 may be entirely enclosed by the insulating material or may be partially exposed outside the insulating material.

According to another aspect of the present utility model, the internal electrode may be a light source circuit.

According to the utility model, the existing lamp power supply structure is modified, the conductive layer is arranged between the inner electrode and the outer metal shell, the insulating material is filled between the conductive layer and the outer metal shell, and the safety distance between the conductive layer and the outer metal shell is set according to the property of the insulating material, so that when the inner electrode is in a working state, the whole circuit can pass electromagnetic energy test, and the safety performance of a product is improved.

Claims

1. A luminaire housing, comprising: an outer metal shell, an inner electrode, and a conductive layer between the metal shell and the inner electrode; insulating materials are respectively filled between the conducting layer and the outer metal shell and between the conducting layer and the inner electrode, and a safe distance is kept between the conducting layer and the outer metal shell.

2. A light fixture housing as recited in claim 1, wherein said outer metal shell is a hollow cylinder.

3. A luminaire housing as claimed in claim 2, characterized in that the conductive layer is of the same type of cylinder structure as the inner electrode.

4. A luminaire housing as claimed in claim 2, characterized in that the conductive layer is a separate sheet-like housing or housings.

5. A luminaire housing as claimed in claim 2, characterized in that the conductive layer is enclosed entirely by the insulating material or is partly exposed outside the insulating material.

6. A luminaire housing as claimed in claim 1, characterized in that the inner electrode is a light source circuit.