High-protection single-phase intelligent electric energy meter housing

Abstract

The utility model discloses a high-protection single-phase intelligent electric energy meter shell, which comprises a transparent flip cover, a bottom shell and a strong current terminal seat which are integrally formed by injection molding, and an upper cover, a transparent window and a weak current terminal seat which are integrally formed by injection molding, a sealing groove is arranged on the bottom shell, a silica gel pad is arranged in the sealing groove, the upper cover is inserted in the sealing groove and abuts against the silica gel pad, and the transparent window is arranged on the transparent flip cover. The upper cover comprises a module bin, the transparent turning cover is hinged to the upper cover and connected with the module bin in a clamped mode, a silica gel ring is installed on the transparent turning cover, the transparent turning cover is provided with a soft rubber sleeve facilitating pressing operation of display keys of the electric energy meter, and the soft rubber sleeve and the transparent turning cover are integrally formed in an injection molding mode. The high-protection single-phase intelligent electric energy meter shell has the advantages that the sealing and protection performance of the high-protection single-phase intelligent electric energy meter shell meets requirements, the sealing and protection performance is improved, the high-protection single-phase intelligent electric energy meter shell is suitable for being used in southern power grids, external environment factors are prevented from damaging internal elements of the electric energy meter, the damage rate of the electric energy meter is reduced, and the service life of the electric energy meter is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of intelligent electric meters, and more specifically, to a high-protection single-phase intelligent electric energy meter housing. Background Art

[0002] Due to the different geographical environments in my country, the installation environments of smart electricity meters are also different, especially in the south. The coastal areas are hot, humid and have high salt content, which corrode the circuit boards and components in the smart electricity meters, seriously affecting the service life of the electricity meters. In addition, every summer is a season of frequent floods and waterlogging disasters, and the damage rate of conventional electricity meters also increases significantly. Therefore, a highly protective electricity meter casing is extremely important.

[0003] State Grid Corporation of China has released the technical requirements for an IP68 high-protection smart energy meter. After three years of practical application, the advantages of IP68 high-protection smart energy meters have gradually emerged. However, the conventional single-phase smart energy meters of the State Grid Corporation of China have the following key points of weak sealing in their structure:

[0004] 1. The sealing of the upper cover and the transparent window by ultrasonic welding.

[0005] The upper cover of the smart watch body and the transparent window have long been connected by ultrasonic welding, which is simple, reliable and easy to operate. However, during ultrasonic welding, a certain proportion of non-fusion on the welding line is inevitable, making it difficult to pass the waterproof test.

[0006] 2. The sealing of the transparent flip cover.

[0007] For the current standard smart meters of the Southern Power Grid, the transparent flap at the module compartment of the upper cover is matched with the upper cover by flipping and snapping the transparent flap with the hinge on the left side of the transparent flap, and then fixing the transparent flap on the right side with a lead seal nail; there is a gap fit between the transparent flap and the module compartment of the upper cover. If the IP68 level of waterproof effect is to be achieved, the structural solution here needs to be improved.

[0008] 3. The seal of the buttons is displayed on the transparent cover.

[0009] There is a display button on the right side of the transparent flip cover, which is mainly used to operate the electricity meter. This display button runs through the upper cover and the flip cover, and the mounted buttons on the circuit board are operated by pressing. Since this display button runs through the inside and outside of the smart meter case, the waterproof sealing performance here also needs to be improved.

[0010] 4. Sealing between the upper cover and the bottom shell, and between the terminal base and the bottom shell.

[0011] Between the upper cover and the bottom shell is the largest assembly surface of the entire electricity meter and also the longest joint line. This joint line is directly related to the inside and outside of the entire meter. If the seal fails, water can directly enter the interior of the smart meter. The traditional solution here is to install the foam silicone strip into the sealing groove of the bottom shell. When the upper cover and the bottom shell are assembled, the foam silicone strip is compressed to achieve sealing. The sealing performance of the joint between the terminal block and the bottom shell also needs to be improved.

[0012] In view of the IP68 high-protection smart energy meter's sealing and protection performance requirements for the energy meter shell, it is necessary to design a high-protection smart energy meter shell to avoid the above-mentioned sealing problems, improve the sealing and protection performance, make it suitable for use by the Southern Power Grid, avoid damage to the internal components of the energy meter caused by external environmental factors, reduce the damage rate of the energy meter, and extend the service life of the energy meter. Utility Model Content

[0013] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a highly protected intelligent electric energy meter housing.

[0014] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0015] A high-protection single-phase smart electric energy meter housing comprises an upper cover assembly, a transparent flip cover and a bottom shell assembly, wherein the bottom shell assembly comprises an integrally-injected bottom shell and a strong current terminal seat, the upper cover assembly comprises an upper cover, a transparent window and a weak current terminal seat, the upper cover, the transparent window and the weak current terminal seat are integrally-injected, a sealing groove matching the upper cover is opened on the bottom shell, a silicone pad is installed in the sealing groove, the upper cover is plugged into the sealing groove and contacts the silicone pad, a connecting screw sleeve is included in the sealing groove, the upper cover is threadedly connected to the connecting screw sleeve by bolts to make the plug-in connection between the upper cover and the sealing groove tighter, the upper cover comprises a module compartment, the transparent flip cover is hinged on the upper cover and clamped with the module compartment, and a silicone ring for sealing the module compartment is installed on the transparent flip cover,

[0016] The inner wall of the module bin includes a guide sleeve, a pressing hole corresponding to the guide sleeve is opened on the transparent flip cover, and a soft rubber sleeve for sealing the pressing hole is provided on the transparent flip cover. The guide sleeve cooperates with the display buttons for operating the electric energy meter so that the display buttons for operating the electric energy meter extend into the module bin and cooperate with the soft rubber sleeve. The soft rubber sleeve and the transparent flip cover are integrally injection molded.

[0017] It is further configured that the module compartment includes a card slot on the inner wall, a card plate connected to the card slot is installed on the transparent flip cover, and a silicone ring is arranged around the card plate and contacts the inner wall of the card slot on the module compartment to seal the module compartment.

[0018] It is further configured that a rotating shaft is installed on one side of the transparent flip cover, one side of the transparent flip cover is hinged to the upper cover through the rotating shaft, and a mounting hole for installing a lead sealing nail is opened on the other side of the transparent flip cover. The inner wall of the module bin also includes a fixing hole for installing the lead sealing nail. A mounting sleeve matching the mounting hole is provided on the transparent flip cover, and the mounting sleeve matches the fixing hole for sealing the fixing hole. The mounting sleeve is integrally formed with the soft rubber sleeve and the transparent flip cover.

[0019] It is further configured that a sealing sleeve is installed in the fixing hole to seal the gap between the lead sealing nail and the fixing hole.

[0020] By adopting the above technical solution, the beneficial effects of the utility model are:

[0021] 1. The upper cover and transparent window are made of one-piece injection molding, which has good sealing and waterproof properties, avoiding the problem of a certain proportion of non-fusion phenomenon in ultrasonic welding, resulting in poor sealing effect and difficulty in passing the waterproof test;

[0022] 2. The transparent flip cover is firmly connected to the module compartment by connecting the card plate and the card slot on the transparent flip cover, and the transparent flip cover is connected to the mounting hole and the fixing hole through the lead sealing nail, thereby strengthening the tightness of the connection between the transparent flip cover and the module compartment of the upper cover, improving the sealing effect, and cooperating with the silicone ring to seal the gap between the transparent flip cover and the module compartment, further strengthening the sealing and waterproofing between the transparent flip cover and the module compartment of the upper cover, avoiding the problem that the smart energy meter is easily damaged due to the unsatisfactory sealing and waterproofing of the transparent flip cover, and improving the service life;

[0023] 3. By applying pressure to the soft rubber sleeve in the pressing hole on the transparent flip cover, the soft rubber sleeve is elastically deformed to facilitate pressing the display button in the module compartment for operating the electric energy meter. The soft rubber sleeve and the transparent flip cover are integrally injection-molded to seal the pressing hole, so that the display button at the transparent flip cover has good sealing and waterproof effects, avoiding poor sealing and waterproofing caused by the display button penetrating the upper cover and the transparent flip cover contacting the external environment;

[0024] 4. The strong current terminal seat and the bottom shell are integrally injection molded, and the weak current terminal seat and the upper cover are integrally injection molded, so that the strong current terminal seat and the bottom shell, and the weak current terminal seat and the upper cover achieve ideal sealing and waterproofness. The bottom shell is plugged into the upper cover through the sealing groove, and when the upper cover is plugged into the sealing groove, it contacts the silicone pad to improve the sealing and waterproofness between the upper cover and the bottom shell. The upper cover is threadedly connected with the connecting screw sleeve in the sealing groove through bolts to make the plug-in of the upper cover and the sealing groove tighter, so that the upper cover and the silicone pad in the sealing groove fit closely, further improving the sealing and waterproofness between the upper cover and the bottom shell;

[0025] 5. The mounting holes on the transparent cover and the fixing holes on the module compartment facilitate the transparent cover to be firmly connected to the module compartment through the lead sealing nails, so that the transparent cover and the module compartment are more tightly connected, which is conducive to improving the sealing performance. When the mounting holes and the fixing holes are connected with the lead sealing nails, the mounting sleeve seals the fixing holes, and the mounting sleeve is integrally formed with the soft rubber sleeve and the transparent cover to prevent water or moisture from entering the housing of the smart electric energy meter through the mounting holes on the transparent cover and the fixing holes on the module compartment to corrode and damage the components;

[0026] Ultimately, the goal of improving the sealing and protection performance is achieved, so that the sealing and protection performance of the high-protection single-phase smart electricity meter housing meets the requirements, is suitable for use by the Southern Power Grid, avoids damage to the internal components of the electricity meter by external environmental factors, reduces the damage rate of the electricity meter, and extends the service life of the electricity meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic structural diagram of an embodiment of the utility model.

[0028] Figure 2 It is a structural schematic diagram of the upper cover assembly.

[0029] Figure 3 It is a structural schematic diagram of the cooperation between the bottom shell and the sealing groove.

[0030] Figure 4 It is a schematic diagram of the structure of the transparent flip cover and the silicone ring.

[0031] Figure 5 It is a schematic diagram of the structure of the press hole and the soft rubber sleeve.

[0032] In the figure: upper cover 1, bottom shell 2, transparent window 3, transparent flip cover 4, high-voltage terminal seat 5, low-voltage terminal seat 6, sealing groove 7, silicone pad 8, connecting screw sleeve 9, module compartment 10, silicone ring 11, guide sleeve 12, display button 121, pressing hole 13, soft rubber sleeve 14, card slot 15, card plate 16, rotating shaft 17, mounting hole 18, fixing hole 19, mounting sleeve 20, sealing sleeve 21. DETAILED DESCRIPTION

[0033] Reference Figures 1 to 5 The utility model is further described in detail.

[0034] A high-protection single-phase smart energy meter housing, comprising an upper cover 1 component, a transparent flip cover 4 and a bottom shell 2 component, wherein the bottom shell 2 component comprises an integrally injection-molded bottom shell 2 and a strong current terminal seat 5, and the upper cover 1 component comprises an upper cover 1, a transparent window 3 and a weak current terminal seat 6;

[0035] Since the upper cover 1 and the transparent window 3 are integrally injection molded, the sealing and waterproof properties are good, and the problem of a certain proportion of non-fusion phenomenon in ultrasonic welding resulting in poor sealing effect and difficulty in passing the waterproof test can be avoided.

[0036] The upper cover 1 is integrally injection molded with the transparent window 3 and the weak current terminal seat 6. A sealing groove 7 matching with the upper cover 1 is opened on the bottom shell 2. A silicone pad 8 is installed in the sealing groove 7. The upper cover 1 is inserted into the sealing groove 7 and contacts with the silicone pad 8. The sealing groove 7 includes a connecting screw sleeve 9. The upper cover 1 is threadedly connected with the connecting screw sleeve 9 by bolts to make the upper cover 1 and the sealing groove 7 more tightly plugged, so that the upper cover 1 and the silicone pad 8 fit more closely;

[0037] The high-current terminal seat 5 and the bottom shell 2 are integrally injection molded, and the low-current terminal seat 6 and the upper cover 1 are integrally injection molded, so that ideal sealing and waterproof properties are achieved between the high-current terminal seat 5 and the bottom shell 2, and between the low-current terminal seat 6 and the upper cover 1. The bottom shell 2 is plugged into the upper cover 1 through the sealing groove 7, and when the upper cover 1 is plugged into the sealing groove 7, it contacts the silicone pad 8 to improve the sealing and waterproof properties between the upper cover 1 and the bottom shell 2. The upper cover 1 is threadedly connected to the connecting screw sleeve 9 in the sealing groove 7 through bolts to make the plug-in of the upper cover 1 and the sealing groove 7 tighter, and the connection between the upper cover and the bottom shell is more secure, so that the upper cover 1 and the silicone pad 8 in the sealing groove 7 fit more closely, further improving the sealing and waterproof properties of the joint between the upper cover 1 and the bottom shell 2.

[0038] The upper cover 1 includes a module compartment 10, the inner wall of the module compartment 10 includes a card slot 15, a card plate 16 connected to the card slot 15 is installed on the transparent flip cover 4, and a silicone ring 11 matched with the card slot 15 is installed on the transparent flip cover 4. The silicone ring 11 is arranged around the card plate 16 and contacts the inner wall of the card slot 15 on the module compartment 10 for sealing the module compartment 10. A rotating shaft 17 is installed on one side of the transparent flip cover 4. One side of the transparent flip cover 4 is hinged to the upper cover 1 through the rotating shaft 17. The other side of the transparent flip cover 4 is provided with a mounting hole 18 for mounting a lead sealing nail. The inner wall of the block bin 10 also includes a fixing hole 19 for installing a lead sealing nail. The other side of the transparent flip cover 4 is connected to the mounting hole 18 and the fixing hole 19 by a lead sealing nail and is fixed on the upper cover 1. The transparent flip cover 4 is provided with a mounting sleeve 20 that matches the mounting hole 18. The mounting sleeve 20 matches the fixing hole 19 and is used to seal the fixing hole 19. The mounting sleeve 20 is integrally formed with the soft rubber sleeve 14 and the transparent flip cover 4 to facilitate sealing the mounting hole 18. A sealing sleeve 21 for sealing the gap between the lead sealing nail and the fixing hole 19 is installed in the fixing hole 19;

[0039] The transparent flip cover 4 is firmly connected to the module bin 10 by the clamping plate 16 on the transparent flip cover 4 and the clamping groove 15 on the inner wall of the module bin 10, and the transparent flip cover 4 is connected to the mounting hole 18 and the fixing hole 19 by the lead sealing nail, so as to strengthen the tightness of the clamping between the transparent flip cover 4 and the module bin 10 of the upper cover 1, improve the sealing between the transparent flip cover 4 and the module bin 10, and cooperate with the silicone ring 11 on the clamping plate 16 to contact with the clamping groove 15 on the inner wall of the module bin 10 to seal the gap between the transparent flip cover 4 and the module bin 10, further strengthen and improve the sealing and waterproofness between the transparent flip cover 4 and the module bin 10 of the upper cover 1, avoid the problem that the smart electric energy meter is easily damaged due to the unsatisfactory sealing and waterproofness of the transparent flip cover 4, and improve the service life.

[0040] The inner wall of the module compartment 10 includes a guide sleeve 12, a pressing hole 13 corresponding to the guide sleeve 12 is opened on the transparent flip cover 4, and a soft rubber sleeve 14 for sealing the pressing hole 13 is provided on the transparent flip cover 4. The guide sleeve 12 cooperates with a display button 121 for operating the electric energy meter so that the display button 121 for operating the electric energy meter extends into the module compartment 10 and cooperates with the soft rubber sleeve 14. The soft rubber sleeve 14 and the transparent flip cover 4 are integrally injection molded;

[0041] By applying pressure to the soft rubber sleeve 14 in the pressing hole 13 on the transparent flip cover 4, the soft rubber sleeve 14 is elastically deformed to facilitate pressing the display button 121 in the module compartment 10 for operating the electric energy meter. The soft rubber sleeve 14 and the transparent flip cover 4 are integrally injection-molded to seal the pressing hole 13, so that the display button 121 at the transparent flip cover 4 has good sealing and waterproof effects, avoiding poor sealing and waterproofing caused by the display button 121 penetrating the upper cover 1 and the transparent flip cover 4 and contacting the external environment.

[0042] The mounting hole 18 on the transparent flip cover 4 and the fixing hole 19 on the module compartment 10 facilitate the transparent flip cover 4 to be firmly clamped on the module compartment 10 through the lead sealing nail, so that the transparent flip cover 4 and the module compartment 10 are clamped and fastened more tightly, which is beneficial to improve the sealing performance. When the mounting hole 18 and the fixing hole 19 are connected with the lead sealing nail, the mounting sleeve 20 cooperates with the fixing hole 19 to seal the fixing hole 19, and the setting of the sealing sleeve 21 in the fixing hole 19 further seals the fixing hole 19, and the mounting sleeve 20 is integrally formed with the soft rubber sleeve 14 and the transparent flip cover 4 to seal the mounting hole 18, so as to prevent water or moisture from entering the housing of the smart electric energy meter from the mounting hole 18 on the transparent flip cover 4 and the fixing hole 19 on the module compartment 10 to corrode and damage components, and to prevent the poor sealing of the installation place of the lead sealing nail on the upper cover 1 from affecting the overall sealing effect, thereby improving the sealing and protection performance of the housing of the high-protection single-phase smart electric energy meter.

[0043] To sum up, the goal of improving the sealing and protection performance is ultimately achieved, so that the sealing and protection performance of the high-protection single-phase smart electricity meter housing meets the requirements, is suitable for use by the Southern Power Grid, avoids damage to the internal components of the electricity meter by external environmental factors, reduces the damage rate of the electricity meter, and extends the service life of the electricity meter.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any common changes and substitutions made by those skilled in the art within the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A high protection single-phase smart energy meter housing, characterized in that: The invention comprises an upper cover (1) component, a transparent flip cover (4) and a bottom shell (2) component, wherein the bottom shell (2) component comprises an integrally injection-molded bottom shell (2) and a strong current terminal seat (5), and the upper cover (1) component comprises an upper cover (1), a transparent window (3) and a weak current terminal seat (6), wherein the upper cover (1), the transparent window (3) and the weak current terminal seat (6) are integrally injection-molded, and a sealing groove (7) is provided on the bottom shell (2) to match the upper cover (1), and a silicone pad (8) is installed in the sealing groove (7). The upper cover (1) is inserted into the sealing groove (7) and contacts the silicone pad (8). The sealing groove (7) includes a connecting screw sleeve (9). The upper cover (1) is threadedly connected to the connecting screw sleeve (9) by bolts so that the upper cover (1) and the sealing groove (7) are more tightly plugged. The upper cover (1) includes a module compartment (10). The transparent flip cover (4) is hinged on the upper cover (1) and is clamped with the module compartment (10). A silicone ring (11) for sealing the module compartment (10) is installed on the transparent flip cover (4). The inner wall of the module compartment (10) includes a guide sleeve (12); a pressing hole (13) corresponding to the guide sleeve (12) is formed on the transparent flip cover (4); a soft rubber sleeve (14) for sealing the pressing hole (13) is provided on the transparent flip cover (4); the guide sleeve (12) cooperates with a display button (121) for operating the electric energy meter so that the display button (121) for operating the electric energy meter extends into the module compartment (10) and cooperates with the soft rubber sleeve (14); the soft rubber sleeve (14) and the transparent flip cover (4) are integrally injection molded.

2. The high protection single-phase smart energy meter housing according to claim 1 is characterized in that: The module compartment (10) comprises a card slot (15) on the inner wall thereof, a card plate (16) engaged with the card slot (15) is mounted on the transparent flip cover (4), and a silicone ring (11) is arranged around the card plate (16) and contacts the inner wall of the card slot (15) on the module compartment (10) for sealing the module compartment (10).

3. The high protection single-phase smart energy meter housing according to claim 2 is characterized in that: A rotating shaft (17) is installed on one side of the transparent flip cover (4), and one side of the transparent flip cover (4) is hinged to the upper cover (1) via the rotating shaft (17). A mounting hole (18) for mounting a lead sealing nail is opened on the other side of the transparent flip cover (4). The inner wall of the module compartment (10) also includes a fixing hole (19) for mounting a lead sealing nail. A mounting sleeve (20) is provided on the transparent flip cover (4) and cooperates with the mounting hole (18). The mounting sleeve (20) cooperates with the fixing hole (19) to seal the fixing hole (19). The mounting sleeve (20) is integrally formed with the soft rubber sleeve (14) and the transparent flip cover (4).

4. The high-protection single-phase smart energy meter housing according to claim 3 is characterized in that: A sealing sleeve (21) is installed in the fixing hole (19) and is used to seal the gap between the lead sealing nail and the fixing hole (19).

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