CN216626369U - Full-sealed electric power instrument - Google Patents

Abstract

The utility model provides a fully-sealed electric instrument, which relates to the technical field of electric instruments and comprises a shell, a rear end plate and a front panel, wherein the front panel is arranged on the front surface of the shell; through be provided with insulating heat-conducting layer between metal inner shell and metal casing, avoid outside moisture directly to get into the instrument through the bleeder vent inside, adopt the electric power instrument of totally closed design, can use in many environments, the casing adopts the metallic design, effectively promotes the firmness and the toughness of electric power instrument, does not influence the insulating properties of electric power instrument simultaneously yet.

Description

Full-sealed electric power instrument

Technical Field

The utility model relates to the technical field of electric power instruments, in particular to a fully-sealed electric power instrument.

Background

Current electric power instrument adopts plastic housing usually to set up the through-hole in casing both sides, give off the heat that the instrument operation produced, electric power instrument is precision instrument mostly, and open through-hole, outside moisture and dust get into inside the casing easily, lead to the phenomenon that the electric elements in the casing wets to take place occasionally, have reduced electric power instrument's life.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a fully-sealed electric power meter.

The utility model solves the technical problems through the following technical means: the utility model provides a totally enclosed electric power instrument, includes casing, back end plate and front panel, the casing front surface is provided with the front panel, the casing rear surface is provided with the back end plate, the casing includes metal casing and metal inner shell, the metal outer shell cover is established in the metal inner shell outside, be provided with insulating heat-conducting layer between metal inner shell and the metal outer shell.

Furthermore, the outer wall of the metal inner shell is in close contact with the inner wall of the metal outer shell through an insulating heat conduction layer.

Further, the length of the metal inner shell is consistent with that of the metal outer shell.

Further, the length of the insulating and heat conducting layer is consistent with that of the metal shell.

Furthermore, the metal inner shell is made of a copper material, and the metal outer shell is made of an aluminum material.

Furthermore, a plurality of fins are fixed on two sides of the shell.

Further, the strip fins are integrally formed with the metal shell.

The utility model has the beneficial effects that:

according to the electric power instrument, the insulating heat conduction layer is arranged between the metal inner shell and the metal outer shell, when an electric element in the electric power instrument runs, generated heat is conducted to the metal inner shell, the metal inner shell is transmitted to the insulating heat conduction layer, the insulating heat conduction layer is transmitted to the metal outer shell, the insulating heat conduction layer is emitted outwards through the metal outer shell, the design of the air holes is removed, external moisture is prevented from directly entering the instrument through the air holes, the electric power instrument adopting a fully-closed design can be used in various environments, the shell adopts a metal design, the firmness and toughness of the electric power instrument are effectively improved, and meanwhile, the insulating performance of the electric power instrument is not influenced.

Drawings

FIG. 1 is a schematic diagram of a conventional power meter;

FIG. 2 is a schematic diagram of the structure of the power meter of the present invention;

fig. 3 is a schematic cross-sectional view of the housing of the present invention.

In the figure: 1. a housing; 11. a metal housing; 12. a metal inner shell; 2. a rear end plate; 3. a front panel; 4. air holes are formed; 5. a fin; 6. a thermally conductive layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Examples

Referring to fig. 1, a conventional power meter is shown, which includes a casing 1, a rear end plate 2 and a front panel 3, wherein the casing 1 is a rectangular body with a hollow interior and two open ends, an electrical component is installed in the casing 1, the front panel 3 is installed at an opening at the front end of the casing 1, the rear end plate 2 is installed at an opening at the rear end of the casing 1, air holes 4 are formed in a side surface of the casing 1, and heat generated when the power meter operates is dissipated outwards through the air holes 4.

Referring to fig. 3, in the fully sealed electric power meter according to the present embodiment, the housing 1 includes a metal outer shell 11 and a metal inner shell 12, the metal outer shell 11 is sleeved outside the metal inner shell 12, an insulating and heat conducting layer 6 is disposed between the metal inner shell 12 and the metal outer shell 11, and an outer wall of the metal inner shell 12 is in close contact with an inner wall of the metal outer shell 11 through the insulating and heat conducting layer 6.

During the use, electric elements in the electric power instrument moves, the heat that produces is conducted to metal inner shell 12 through not seeing in the heat conduction spare picture, the heat conduction spare can the copper pipe, copper pipe one end is connected with metal inner shell 12, the other end and the core element that generates heat are connected, metal inner shell 12 transmits to insulating heat-conducting layer 6, insulating heat-conducting layer 6 transmits to metal outer shell 11, outwards give off through metal outer shell 11, remove the design of bleeder vent 4, avoid outside moisture directly to get into inside the instrument through bleeder vent 4, adopt the electric power instrument of totally closed design, can use in many environments.

Secondly, casing 1 adopts the metal design, effectively promotes electric power instrument's firmness and toughness, does not also influence electric power instrument's insulating properties simultaneously.

The length of the metal inner shell 12 is the same as that of the metal outer shell 11, namely, the distance between the rear end plate 2 and the front panel 3, and the length of the insulating and heat conducting layer 6 is also the same as that of the metal outer shell 11, so that the metal inner shell 12 can be effectively separated from the metal outer shell 11; the metal outer shell 11 and the metal inner shell 12 can be made of the same metal material; but is not limited herein, and may be made of copper or other metal with good thermal conductivity.

In this embodiment, the metal inner shell 12 is made of copper material, copper has good heat conductivity, the metal outer shell 11 is made of aluminum material, aluminum has good heat dissipation performance, copper absorbs heat quickly, the heat is conducted to the aluminum material through the insulating heat conduction layer 6 to make the metal outer shell 11, and the heat is dissipated outwards quickly by the metal outer shell 11.

The material of the insulating and heat conducting layer 6 is heat conducting silicone or other insulating and heat conducting materials, and is not limited in particular.

Referring to fig. 2, a plurality of fins 5 are fixed on two sides of the casing 1, the fins 5 are used for increasing the contact area between the casing 1 and the outside air and improving the heat dissipation performance of the metal casing 11, and similarly, the fins 5 are made of an aluminum material and are integrally formed with the metal casing 11.

It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (7)

1. The utility model provides a totally enclosed electric power instrument, includes casing (1), rear end plate (2) and front panel (3), casing (1) front surface is provided with front panel (3), casing (1) rear surface is provided with rear end plate (2), its characterized in that: the shell (1) comprises a metal outer shell (11) and a metal inner shell (12), wherein the metal outer shell (11) is sleeved on the outer side of the metal inner shell (12), and an insulating heat conduction layer (6) is arranged between the metal inner shell (12) and the metal outer shell (11).

2. A fully sealed power meter according to claim 1, wherein: the outer wall of the metal inner shell (12) is in close contact with the inner wall of the metal outer shell (11) through the insulating heat conduction layer (6).

3. A fully sealed power meter according to claim 2, wherein: the length of the metal inner shell (12) is consistent with that of the metal outer shell (11).

4. A totally enclosed electrical power meter as claimed in claim 3, wherein: the length of the insulating heat conduction layer (6) is consistent with that of the metal shell (11).

5. A totally enclosed electrical power meter as claimed in any one of claims 1 to 4, wherein: the metal inner shell (12) is made of a copper material, and the metal outer shell (11) is made of an aluminum material.

6. A totally enclosed electrical power meter as claimed in claim 5, wherein: and a plurality of fins (5) are fixed on two sides of the shell (1).

7. A totally enclosed electrical power meter as claimed in claim 6, wherein: the strip fins (5) and the metal shell (11) are integrally formed.

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