CN219496489U - Electric energy meter - Google Patents

Abstract

The utility model provides an electric energy meter which comprises a lens and a shell. The lens is provided with a plurality of first through holes at intervals along the circumferential direction. The shell comprises an opening for accommodating the lens, and a plurality of first bosses are arranged at intervals on the periphery of the opening. The shell is configured to enable the first bosses to penetrate into the first through holes in a one-to-one correspondence mode so as to weld the first bosses and the lenses. The utility model also provides another electric energy meter, which comprises a lens and a shell. The lens is provided with a plurality of second bosses along the circumference at intervals. The shell comprises an opening for accommodating the lens, and a plurality of second through holes are formed in the periphery of the opening at intervals. The shell is configured to enable the plurality of second bosses to penetrate into the plurality of second through holes in a one-to-one correspondence manner so as to weld the plurality of second bosses with the shell. According to the electric energy meter, the lens and the shell can be connected through the plurality of bosses, so that the welding power can be reduced, and the welding stability can be improved.

Description

Electric energy meter

Technical Field

The utility model relates to the technical field of electric power metering equipment, in particular to an electric energy meter.

Background

An electric energy meter is an instrument device for measuring electric power, and is provided with a display window for a user to read information such as electric quantity and an indicator lamp, wherein the display window is usually made of transparent lenses.

In the related art, the peripheral edge of the lens is generally fused with the assembly part of the shell of the electric energy meter by ultrasonic welding, so that the lens and the shell are connected into a whole, and the lens part of the electric energy meter has corresponding information interaction and waterproof functions. However, due to the limitation of the power of the ultrasonic welding equipment, when the size of the assembled lens is large, namely, the area of the lens to be welded is large, the welding effect is poor, and the risks of falling off and the like are easily caused after the lens is welded on the shell, so that the size of the selected lens is limited, and the stability of welding the lens and the shell is poor.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the electric energy meter, which can be used for connecting the lens and the shell through welding a plurality of bosses, so that the welding power can be reduced, and the welding stability can be improved.

An embodiment of a first aspect of the present utility model provides an electric energy meter, including:

the lens is provided with a plurality of first through holes at intervals along the circumferential direction;

the shell comprises an opening for accommodating the lens, and a plurality of first bosses are arranged at intervals on the periphery of the opening;

the shell is configured to enable the first bosses to penetrate into the first through holes in a one-to-one correspondence mode so as to weld the first bosses and the lenses.

In some embodiments, the first boss extends a length greater than a depth of the first through hole.

In some embodiments, a sinking platform is disposed between the periphery of the opening and the plurality of first bosses, the sinking platform being capable of accommodating a seal ring.

An embodiment of a second aspect of the present utility model provides an electric energy meter, including:

the lens is provided with a plurality of second bosses at intervals along the circumferential direction;

the shell comprises an opening for accommodating the lens, and a plurality of second through holes are formed in the periphery of the opening at intervals;

the shell is configured to enable the second bosses to penetrate into the second through holes in a one-to-one correspondence mode so as to weld the second bosses and the shell.

In some embodiments, the second boss extends a length greater than a depth of the second through hole.

In some embodiments, a sinking platform is disposed between the periphery of the opening and the plurality of second through holes, and the sinking platform is capable of accommodating the sealing ring.

In some embodiments, the lens includes a body portion and a peripheral portion surrounding the body portion, the body portion protruding from the peripheral portion in a direction facing the power meter.

In some embodiments, the boss is rectangular or circular in cross-section along a direction perpendicular to its extension.

In some embodiments, the seal ring is annular.

In some embodiments, the annular seal ring is made of rubber or silicone.

The electric energy meter according to the embodiment of the first aspect of the utility model has at least the following beneficial effects:

in the technical scheme of this application, through a plurality of first bosses that make on the casing penetrate a plurality of first through-holes on the lens realize preassembling, thereby the back welds a plurality of first bosses and connects casing and lens. Compared with the mode that the whole edges of the shell and the lens are welded to be connected with the shell and the lens, in the scheme, only a plurality of first bosses are required to be welded, the welded area is small, the consumed power is low, the limitation of shell and lens type selection can be solved, the welding device can also be suitable for welding the lens with the shell in various different specifications and sizes, the application range can be enlarged, and the welding stability of the lens and the shell can be improved through pre-assembly and re-welding. Compared with the mode of integrally forming the lens and the shell by using the double injection mold, the shell and the lens can be formed separately, and the utilized mold is simple in structure, can reduce production cost and is convenient for mass production.

According to the electric energy meter of the embodiment of the second aspect of the utility model, the electric energy meter has at least the following beneficial effects:

in the technical scheme of this application, through a plurality of second bosses that make on the lens penetrate a plurality of second through-holes on the casing and realize preassembling, thereby the casing and lens are connected in the welding to a plurality of second bosses afterwards. Compared with the mode of connecting the shell and the lens by welding the whole edges of the shell and the lens, in the scheme, only a plurality of second bosses on the lens are required to be welded, the welded area is small, the consumed power is low, the limitation of shell and lens type selection can be solved, the welding device can be suitable for welding lenses with different specifications and sizes and shells, and the application range can be enlarged. And through pre-assembly and re-welding, the welding stability of the lens and the shell can be improved. Compared with the mode of integrally forming the lens and the shell by using the double injection mold, the shell and the lens can be formed separately, and the utilized mold is simple in structure, can reduce production cost and is convenient for mass production.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an electric energy meter according to an embodiment of the present utility model;

FIG. 2 is an exploded view of an electrical energy meter according to one embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional view of an electrical energy meter according to one embodiment of the utility model; wherein each first boss is an effect diagram of which welding is completed;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a schematic view of a lens according to an embodiment of the utility model;

FIG. 6 is an exploded view of an electric energy meter according to another embodiment of the present utility model;

fig. 7 is a schematic structural view of a housing according to another embodiment of the present utility model.

In the drawings, each reference numeral denotes:

an electric energy meter 10;

a lens 100; a first through hole 110; a main body 120; a peripheral portion 130; a second boss 140;

a housing 200; an opening 210; a first boss 220; a sinking station 230; a first wall 231; a second wall 232; a third wall surface 233; a housing body 240; a second through hole 250;

seal ring 300.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if a directional indication (such as up, down, left, right, front, and rear … …) is included in the embodiment of the present utility model, the directional indication is merely used to explain a relative positional relationship, a movement condition, and the like between the components in a specific posture, and if the specific posture is changed, the directional indication is correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if "and/or", "and/or" and/or "are used throughout, the meaning includes three parallel schemes, for example," a and/or B ", including a scheme, or B scheme, or a scheme where a and B meet simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

An electric energy meter is an instrument device for measuring electric power, and is provided with a display window for a user to read information such as electric quantity and an indicator lamp, wherein the display window is usually made of transparent lenses.

In the related art, the peripheral edge of the lens is generally fused with the assembly part of the shell of the electric energy meter by ultrasonic welding, so that the lens and the shell are connected into a whole, and the lens part of the electric energy meter has corresponding information interaction and waterproof functions. However, due to the limitation of the power of the ultrasonic welding equipment, when the size of the assembled lens is large, namely, the area of the lens to be welded is large, the welding effect is poor, and the risks of falling off and the like are easily caused after the lens is welded on the shell, so that the size of the selected lens is limited, and the stability of welding the lens and the shell is poor. In addition, the lens and the shell are integrally formed by double injection molding, but the double injection molding process is complex, and the injection mold has high cost and is not beneficial to mass production.

In view of this, referring to fig. 1 to 5, an embodiment of the present utility model provides an electric energy meter 10, and the electric energy meter 10 may be used to meter electric energy. Specifically, the power meter 10 includes a lens 100 and a housing 200.

The lens 100 is a part of a display window of the electric energy meter 10, and has a function of protecting the internal circuit structure and related parts of the electric energy meter 10. The lens 100 is generally made of a transparent material so as to facilitate the user to obtain the relevant power information inside the power meter 10 through the lens 100. The lens 100 may be rectangular, circular, etc., depending on the actual requirements. An embodiment of the present utility model is illustrated as a rectangular lens 100 with a rounded transition, as shown in fig. 5.

The lens 100 is provided with a plurality of first through holes 110 at intervals in the circumferential direction, referring to fig. 2 and 5. It is understood that the circumference of the lens 100 refers to the peripheral edge portion of the lens 100. The intervals between the plurality of first through holes 110 may be uniform or non-uniform. The number of the first through holes 110 and the interval between the adjacent first through holes 110 may be determined according to practical situations, and in some embodiments of the present utility model, 8 first through holes 110 are provided and non-uniform intervals are used as an example.

In some embodiments, the first via 110 may be rectangular in shape. In other embodiments, the shape of the first through hole 110 may be circular. In other embodiments, the shape of the first through hole 110 may also be an elongated shape or the like. The present embodiment takes a rectangular first through hole 110 as an example.

The case 200 refers to a housing of the electric energy meter 10, and in particular, the case 200 may be a housing of a front side of the electric energy meter 10. It will be appreciated that the front side herein refers to the side of the power meter 10 that faces the outside and is convenient for manually performing related operations and acquiring power information. The housing 200 includes an aperture 210 for receiving the lens 100. The opening 210 may be provided at an upper portion of the case 200 or may be provided at a lower portion of the case 200. It should be noted that the shape of the opening 210 may be the same as the lens 100, and the area of the opening 210 may be smaller than the area of the lens 100.

The outer circumference of the opening 210 is provided with a plurality of first bosses 220 at intervals, referring to fig. 2 to 4. The outer circumference of the aperture 210 refers to the circumferential area of the housing 200 that is external to the aperture 210. It is understood that the intervals between the plurality of first bosses 220 should be identical to the intervals between the plurality of first through holes 110. The shape of the first boss 220 should be identical to the shape of the first through hole 110. The plurality of first bosses 220 are disposed at the rear side of the housing 200.

Wherein, a plurality of first bosses 220 on the housing 200 can be penetrated into a plurality of first through holes 110 in a one-to-one correspondence, and after the penetrating assembly of the plurality of first bosses 220 and the plurality of first through holes 110 is completed, the plurality of bosses can be ultrasonically welded so as to connect the housing 200 and the lens 100.

In the solution of the present application, the preassembly is achieved by making the first bosses 220 of the housing 200 penetrate the first through holes 110 of the lens 100, and then welding the first bosses 220 to connect the housing 200 and the lens 100. Compared with the method of welding the whole edges of the shell 200 and the lens 100 to connect the shell 200 and the lens 100, in the present embodiment, only the first bosses 220 on the lens 100 are required to be welded, the welding area is small, and thus the consumed power is low, which can solve the limitation of the shell 200 and the lens 100 in the shape selection, and can be suitable for welding the lens 100 and the shell 200 with various different specifications and sizes, so that the application range can be enlarged, and the welding stability of the lens 100 and the shell 200 can be improved through pre-assembly and re-welding. Compared with the mode of integrally forming the lens 100 and the shell 200 by using the two injection molds, the shell 200 and the lens 100 can be formed separately, and the mold has a simple structure, can reduce the production cost and is convenient for mass production.

In some embodiments, the extension length of the first boss 220 is greater than the depth of the first through hole 110, i.e., the first boss 220 may protrude with respect to the first through hole 110 after penetrating into the first through hole 110, so that the protruding portion of the first boss 220 may be melted by ultrasonic welding such that the protruding portion increases in cross section perpendicular to the extension direction of the first boss 220 to connect the boss with the lens 100 as one body, referring to fig. 3 and 4. The extended length of the first boss 220 refers to a protruding length of the first boss with respect to the housing body 240. The extending direction of the first boss 220 may be in a direction perpendicular to the housing body 240. The above arrangement can improve the stability of welding the lens 100 and the housing 200, and prolong the service life of the electric energy meter 10.

A sinking platform 230 is disposed between the periphery of the opening 210 of the housing 200 and the first bosses 220, the sinking platform 230 includes a first wall 231, a second wall 232 and a third wall 233, the third wall 233 is located between the first wall 231 and the second wall 232, and the seal ring 300 can abut against the first wall 231 and the third wall 233 to be accommodated in the sinking platform 230. The arrangement of the sealing ring 300 can simultaneously improve the waterproof property and the sealing property of the electric energy meter 10, and avoid the abnormality of the electric components and the like inside the electric energy meter 10 due to external influence. And the setting of the sinking platform 230 can also improve the stability of the holding sealing ring 300.

The second aspect of the present utility model also proposes another electric energy meter 10, referring to fig. 6 and 7. Specifically, the power meter 10 includes a lens 100 and a housing 200. The lens 100 is similar to the lens 100 according to the first embodiment of the present application in terms of materials and functions, and the housing 200 is similar to the housing 200 according to the first embodiment of the present application, and will not be described again.

The lens 100 is provided with a plurality of second bosses 140 circumferentially spaced apart. The second boss 140 is similar to the first boss 220. In some embodiments, the second boss 140 may be rectangular in shape. In other embodiments, the second boss 140 may be circular in shape. In other embodiments, the second boss 140 may also be elongated in shape, etc. The present embodiment takes the rectangular second boss 140 as an example, referring to fig. 6.

The housing 200 has an opening 210 for receiving the lens 100, see fig. 6 and 7. The aperture 210 of this embodiment is similar to the aperture 210 of the first aspect of the present application, which is exemplified by a rectangular aperture with smooth transitions. A plurality of second through holes 250 are provided at circumferential intervals outside the opening 210. It should be noted that the plurality of second through holes 250 need to be adapted to the plurality of second bosses 140.

The second bosses 140 on the lens 100 can be correspondingly inserted into the second through holes 250, and after the second bosses 140 and the second through holes 250 are inserted, the second bosses 140 can be ultrasonically welded to connect the housing 200 and the lens 100.

In the solution of the present application, the preassembly is achieved by penetrating the plurality of second bosses 140 on the lens 100 into the plurality of second through holes 250 on the housing 200, and then welding the plurality of second bosses 140 to connect the housing 200 and the lens 100. Compared with the way of welding the whole edges of the shell 200 and the lens 100 to connect the shell 200 and the lens 100, in the scheme, only the plurality of second bosses 140 on the lens 100 are required to be welded, the welding area is small, the consumed power is low, the limitation of the shell 200 and the lens 100 in the shape selection can be solved, and the method can be suitable for welding the lens 100 and the shell 200 with various different specifications and sizes, and can expand the application range. And the welding stability of the lens 100 and the case 200 can be improved by pre-assembling and re-welding. Compared with the mode of integrally forming the lens 100 and the shell 200 by using the two injection molds, the shell 200 and the lens 100 can be formed separately, and the mold has a simple structure, can reduce the production cost and is convenient for mass production.

In some embodiments, the extension length of the second boss 140 is greater than the depth of the second through hole 250, i.e., the second boss 140 may protrude with respect to the second through hole 250 after penetrating into the second through hole 250, so that the protruding portion of the second boss 140 may be melted by ultrasonic welding such that the protruding portion increases in cross section perpendicular to the extension direction of the second boss 140 to connect the boss with the lens 100 as one body (not shown in the drawings, but the connection effect may refer to fig. 3 and 4). The extended length of the second boss 140 refers to a length protruding with respect to the main body 120 of the lens 100. The above arrangement can improve the stability of welding the lens 100 and the housing 200, and prolong the service life of the electric energy meter 10.

A sinking platform 230 is disposed between the periphery of the opening 210 of the housing 200 and the plurality of second through holes 250, the sinking platform 230 includes a first wall 231, a second wall 232 and a third wall 233, the third wall 233 is located between the first wall 231 and the second wall 232, and the seal ring 300 can abut against the first wall 231 and the third wall 233 to be accommodated in the sinking platform 230. It is understood that the first wall 231 may be parallel to the second wall 232, and the third wall 233 may be perpendicular to both the first wall 231 and the second wall 232. The arrangement of the sealing ring 300 can simultaneously improve the waterproof property and the sealing property of the electric energy meter 10, and avoid the abnormality of the electric components and the like inside the electric energy meter 10 due to external influence. And the setting of the sinking platform 230 can also improve the stability of the holding sealing ring 300.

It should be noted that, the sealing ring 300 may be placed on the sinking platform 230, and then the plurality of second bosses 140 are inserted into the second through holes 250, so that the lens 100 has a pre-compression effect on the sealing ring 300, and then the welding is performed. The sealing effect of the sealing ring 300 can be exerted to the greatest extent.

Referring to fig. 6, the lens 100 includes a body portion 120 and a peripheral portion 130 surrounding the body portion 120, and the body portion 120 protrudes from the peripheral portion 130 in a direction facing the electric energy meter 10. The above arrangement facilitates pre-tightening of the lens 100 against the seal ring 300, further improving the sealing performance of the electric energy meter 10.

In some embodiments, the boss is rectangular in cross-section perpendicular to its direction of extension. In other embodiments, the boss is circular in cross-section along a direction perpendicular to its extension. In other embodiments, the convex edge has an elongated shape in cross section perpendicular to its extension. The shape of the boss is convenient for the boss to penetrate into the through hole. The specific extension of the boss may depend on the thickness of the lens 100 and the actual configuration of the housing 200 of the power meter 10.

It should be noted that, the boss herein may refer to the first boss 220, the second boss 140, and both the first boss 220 and the second boss 140.

In some embodiments, the sealing ring 300 is annular, and the annular sealing ring 300 enables the periphery of the lens 100 to be subjected to the sealing effect of the sealing ring 300, so that water, dust and the like are prevented from entering the electric energy meter 10 along gaps when the sealing ring 300 is spliced, the sealing effect of the electric energy meter 10 can be improved, and the service life of the electric energy meter 10 is prolonged.

The sealing ring 300 is made of rubber or silica gel, the rubber or silica gel material is convenient to obtain and low in cost, the sealing effect is good, the cost of the electric energy meter 10 can be further reduced, and a good waterproof effect can be achieved.

A method for welding the electric energy meter 10 (taking the electric energy meter 10 according to the embodiment of the first aspect of the present utility model as an example) is described below. First, the seal ring 300 is placed on the sinking stage 230 of the housing 200 such that the peripheral wall of the seal ring 300 abuts against the first wall surface 231 and the third wall surface 233, or the seal ring 300 is directly fitted over the portion where the main body 120 of the lens 100 and the peripheral portion 130 are connected. Then, the first bosses 220 on the housing 200 are correspondingly inserted into the first through holes 110 on the lens 100, and the sealing ring 300 is deformed between the lens 100 and the housing 200 by pre-pressing, and the lens 100 abuts against the first wall 231 and the third wall 233 of the sinking stage 230. And finally, welding a plurality of first bumps by utilizing ultrasonic welding joints of ultrasonic welding equipment. It should be noted that, the plurality of first bumps may be grouped during soldering, and each group includes two first bumps, which are opposite to each other. And then the first convex blocks in each group are welded step by step, so that stable and reliable connection between the lens 100 and the shell 200 is realized, and the waterproof performance of the electric energy meter 10 is improved.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An electric energy meter, comprising:

the lens is provided with a plurality of first through holes at intervals along the circumferential direction;

the shell comprises an opening for accommodating the lens, and a plurality of first bosses are arranged at intervals on the periphery of the opening;

the shell is configured to enable the first bosses to penetrate into the first through holes in a one-to-one correspondence mode so as to weld the first bosses and the lenses.

2. The electrical energy meter of claim 1, wherein the first boss extends a length greater than a depth of the first through hole.

3. The electric energy meter of claim 2, wherein a sinking table is disposed between the periphery of the opening and the plurality of first bosses, the sinking table being capable of accommodating a seal ring.

4. An electric energy meter, comprising:

the lens is provided with a plurality of second bosses at intervals along the circumferential direction;

the shell comprises an opening for accommodating the lens, and a plurality of second through holes are formed in the periphery of the opening at intervals;

the shell is configured to enable the second bosses to penetrate into the second through holes in a one-to-one correspondence mode so as to weld the second bosses and the shell.

5. The electrical energy meter of claim 4, wherein the second boss extends a length greater than a depth of the second through hole.

6. The electric energy meter of claim 5, wherein a sinking table is disposed between the periphery of the opening and the plurality of second through holes, the sinking table being capable of accommodating a seal ring.

7. The electric energy meter of claim 1 or 4, wherein the lens comprises a main body portion and a peripheral portion surrounding the main body portion, the main body portion protruding from the peripheral portion in a direction facing the electric energy meter.

8. The electric energy meter of claim 1 or 4, wherein the boss is rectangular or circular in cross section perpendicular to the direction in which it extends.

9. The electric energy meter of claim 3 or 6, wherein the sealing ring is annular.

10. The electric energy meter of claim 9, wherein the annular sealing ring is made of rubber or silica gel.