Intelligent electric meter

Abstract

The utility model discloses an intelligent electric meter, which comprises an electric meter shell and an infrared emission module arranged in the electric meter shell, and further comprises a through groove arranged on the surface of the electric meter shell and arranged corresponding to an infrared emission end of the infrared emission module; the plugging shell is installed in the electric meter shell and used for containing the through groove, and first plugging grooves are correspondingly formed in the two sides of the plugging shell; and the plugging pull piece is movably arranged in the plugging shell, and a second plugging groove is formed in the plugging pull piece. According to the intelligent electric meter provided by the utility model, the plugging shell and the plugging pull piece are arranged at the position, corresponding to the data reading through groove, of the electric meter shell, so that plugging protection on the data reading area is formed, and meanwhile, when actual data reading is carried out, the data reading area is not damaged. And the plugging pull piece can be directly pulled down, so that the through groove corresponds to the infrared reading hole to quickly realize data reading.

Description

Technical Field

[0001] The utility model relates to the technical field of smart meters, and particularly relates to a smart meter. Background Art

[0002] At present, there are many types of electric meters, and smart meters are one of them, which can directly replace conventional power transmitters and measuring instruments. As an advanced intelligent and digital front-end acquisition element, this power meter has been widely used in various control systems, SCADA systems, and energy management systems. The smart meter adopts AC sampling technology, can measure current parameters in the power grid, can set the magnification through the panel membrane switch, and has functions such as RS485 communication, alarm output, digital input / output, etc.

[0003] Existing smart meters are all equipped with an infrared transmitting end and an infrared receiving end. The infrared transmitting end is installed inside the smart meter to transmit the data information inside the smart meter, and a transmitting hole corresponding to the infrared transmitting end is provided on the meter housing of the smart meter. The infrared receiving end is a receiver independent of the outside of the smart meter. When it is necessary to read the meter and record the data of a certain smart meter, the corresponding infrared receiving end is brought close to the transmitting hole on the smart meter to make it correspond to the infrared transmitting end, and then the data can be transmitted to facilitate the work of the meter reading personnel. For the above smart meter with infrared reading function, since most of the transmitting holes are directly exposed to the outside, affected by external unstable factors, it is easy to cause damage to the reading area and affect the actual data reading. Therefore, a smart meter is proposed. Summary of the Invention

[0004] Based on this, in view of the above technical problems, it is necessary to provide a smart meter, which realizes the protection of the transmitting hole area through the setting of a plugging shell and a locking element.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A smart meter includes a meter housing and an infrared emission module provided inside it, and further includes:

[0007] A through groove, which is provided on the surface of the meter housing and corresponds to the infrared transmitting end of the infrared emission module;

[0008] A plugging shell, which is installed inside the meter housing and is used to accommodate the through groove, and first plugging grooves are correspondingly opened on both sides of the plugging shell;

[0009] A plugging tab, which is movably arranged inside the plugging shell, and a second plugging groove is provided on the plugging tab;

[0010] Locking elements that are commonly inserted into the first plugging groove and the second plugging groove to form a lock on the plugging tab. Pulling the plugging tab within the plugging housing can expose the reading or provide plugging protection through the through slot.

[0011] Further, two side corner portions extend at intervals from the first end of the plugging tab, and the second plugging groove is provided on the side corner portions.

[0012] Further, a pushing and pulling portion extends from the second end of the plugging tab.

[0013] Further, two limiting platforms are provided within the plugging housing. The two limiting platforms are arranged oppositely and jointly form a limiting channel for limiting the pushing and pulling portion.

[0014] Further, the locking element includes a lock beam and a lock body;

[0015] The movable end of the lock beam penetrates into one of the first plugging grooves and sequentially passes through the two second plugging grooves and finally penetrates out of the other first plugging groove to be locked with the lock body.

[0016] Further, an opening groove is provided at the outer end of the plugging housing for the installation of a magnetic attracting steel sheet. Magnetic attraction can be carried out between the magnetic attracting steel sheet and the plugging tab;

[0017] An infrared reading hole is provided on the magnetic attracting steel sheet, and it is correspondingly arranged with the infrared emitting end of the infrared emitting module and the through slot.

[0018] Further, a locking post extends from the bottom wall of the plugging housing towards the opening groove, and the magnetic attracting steel sheet is fixed to the surface of the plugging housing through the locking post.

[0019] Further, the meter housing includes a bottom shell and an upper shell that are snap-fitted together, and a PCB board is assembled between the bottom shell and the upper shell;

[0020] Among them, the meter housing further includes a module box and a terminal block cover. The module box is buckled to the first end of the upper shell, the terminal block cover is buckled to the second end of the upper shell, and both the module box and the terminal block cover are locked and connected to the bottom shell;

[0021] The through slot is provided on the upper shell and is correspondingly arranged with the infrared emitting end of the infrared emitting module.

[0022] Further, the infrared emitting module includes an infrared lens and an infrared lamp installed on the PCB board.

[0023] Further, a water guide groove is opened at the top end of the bottom shell;

[0024] Both ends of the water guide groove extend outward along the top of the bottom shell to form water outlet holes outside the module box.

[0025] Compared with the prior art, the utility model has the following beneficial effects:

[0026] For the smart meter provided by the utility model, a plugging shell and a plugging pull tab are arranged at the position of the through groove corresponding to data reading on the meter shell to form plugging protection for the data reading area. At the same time, during actual data reading, the plugging pull tab can be directly pulled down to make the through groove correspond to the infrared reading hole, realizing fast data reading of the smart meter. After the reading is completed, the sliding locking element can be slid to reset to form plugging protection for the through groove, avoiding being affected by external factors and disturbing the actual data reading;

[0027] Through the setting of the locking element, while meeting the requirement of quickly realizing data reading without disassembling the magnetic attracting steel sheet, it can also form protection for the plugging pull tab, enabling it to only slide on the plugging shell without falling off or getting lost, improving the reliability of the protection of the smart meter;

[0028] Through the setting of the water guide groove and the water outlet hole, when the smart meter is assembled and used, the rainwater seeping into it from the top can be discharged to the outside under the action of the water guide groove, ensuring the stable operation of the components inside. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Schematic structural diagram of the infrared reading state of the smart meter provided by the utility model;

[0030] Figure 2 Partial structural schematic diagram of the infrared plugging state of the smart meter provided by the utility model;

[0031] Figure 3 For the smart meter provided by the utility model Figure 2 Enlarged structural schematic diagram at position A;

[0032] Figure 4 Disassembled structural schematic diagram of the plugging shell of the smart meter provided by the utility model;

[0033] Figure 5 Exploded structural schematic diagram of the smart meter provided by the utility model;

[0034] Figure 6 Partial sectional structural schematic diagram of the plugging shell of the smart meter provided by the utility model;

[0035] Figure 7 Structural schematic diagram of the plugging shell and the plugging pull tab of the smart meter provided by the utility model;

[0036] Figure 8 Sectional structural schematic diagram of the smart meter provided by the utility model;

[0037] Figure 9 Schematic diagram of the water guide groove structure of the smart meter provided by the present utility model;

[0038] Figure 10 Schematic diagram of the water outlet hole structure of the smart meter provided by the present utility model.

[0039] The markings in the figure are explained as follows:

[0040] 1. Meter housing; 11. Through groove; 12. Upper shell; 13. PCB board; 14. Terminal block cover; 15. Bottom shell; 16. Module box;

[0041] 150. Water guide groove; 151. Water outlet hole;

[0042] 2. Infrared emission module; 21. Infrared lens; 22. Infrared lamp;

[0043] 3. Sealing shell; 31. First sealing groove; 32. Infrared reading hole; 33. Limiting platform; 34. Magnetic attracting steel sheet; 35. Locking column; 36. Opening groove;

[0044] 4. Locking element; 41. Lock beam; 42. Lock body;

[0045] 5. Sealing pull tab; 51. Second sealing groove; 52. Side corner; 54. Pushing and pulling part. Specific embodiments

[0046] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0047] As described in the background art, in the existing smart meters with infrared reading functions, since most of the emission holes are directly exposed to the outside, affected by external unstable factors, it is easy to cause damage to the reading area and affect the actual data reading.

[0048] To solve this technical problem, the present utility model provides a smart meter, which is applied to the meter.

[0049] Specifically, please refer to Figures 1 - 10 , the smart meter specifically includes:

[0050] Meter housing 1 and an infrared emission module 2 provided inside it, and further includes:

[0051] A through slot 11 is provided on the surface of the electricity meter housing 1 and is correspondingly arranged with the infrared emission end of the infrared emission module 2;

[0052] A sealing shell 3 is installed inside the electricity meter housing 1 and is used to accommodate the through slot 11. First sealing grooves 31 are correspondingly formed on both sides of the sealing shell 3;

[0053] A sealing pull tab 5 is movably arranged inside the sealing shell 3, and a second sealing groove 51 is formed on the sealing pull tab 5;

[0054] A locking element 4 passes through the first sealing groove 31 and the second sealing groove 51 together to form a lock on the sealing pull tab 5. Pulling the sealing pull tab 5 inside the sealing shell 3 can expose the reading of the through slot 11 or seal and protect it.

[0055] For the smart electricity meter provided by the present utility model, by arranging the sealing shell 3 and the sealing pull tab 5 at the position of the through slot 11 corresponding to the data reading area on the electricity meter housing 1, a sealing protection for the data reading area is formed. At the same time, during actual data reading, the sealing pull tab 5 can be directly pulled down to expose the through slot 11, realizing the data reading of the smart electricity meter. After the reading is completed, the locking element 4 can be slid to reset to form a sealing protection for the through slot 11, avoiding being affected by external factors and disturbing the actual data reading.

[0056] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

[0057] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments can be combined with each other.

[0058] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0059] Embodiment 1

[0060] Please refer to Figures 1 - 10 As shown in the figure, a smart electricity meter includes an electricity meter housing 1 and an infrared emission module 2 arranged inside it, and further includes: a through slot 11, which is arranged on the surface of the electricity meter housing 1 and is correspondingly arranged with the infrared emission end of the infrared emission module 2;

[0061] A sealing shell 3 is installed inside the electricity meter housing 1 and is used to accommodate the through slot 11. First sealing grooves 31 are correspondingly formed on both sides of the sealing shell 3;

[0062] The plugging tab 5 is movably arranged inside the plugging shell 3. The plugging tab 5 has a second plugging groove 51. The locking element 4 passes through the first plugging groove 31 and the second plugging groove 51 together to form the locking of the plugging tab 5. Pulling the plugging tab 5 inside the plugging shell 3 can expose the through groove 11 for reading or plugging protection.

[0063] As Figure 3 and Figure 4 shown, two side corner portions 52 extend at intervals from the first end of the plugging tab 5, and the second plugging groove 51 is arranged on the side corner portions 52.

[0064] As Figure 1 shown, the through groove 11 is in a state of being exposed to the outside. Therefore, the infrared receiving end outside can directly read the meter data inside the meter housing 1 through the through groove 11. As Figure 2 and Figure 3 shown, at this time, the through groove 11 is blocked by the plugging tab 5 and is in a protected state. Therefore, when there is no need to read data, the through groove 11 and its surrounding area can be protected to avoid interference from external unstable factors.

[0065] Through the above structural design, when data needs to be read from the smart meter, the plugging tab 5 is pulled downward. At this time, since the through groove 11 is not affected by the plugging tab 5, it can be directly used for direct infrared data reading.

[0066] As a further optimization of this embodiment: A pushing and pulling portion 54 extends from the second end of the plugging tab 5. As Figure 4 shown, the pushing and pulling portion 54 extends outside the plugging shell 3, and even after the plugging tab 5 is pushed to the top of the plugging shell 3, part of the pushing and pulling portion 54 can still be located outside the plugging shell 3. In this way, when infrared data needs to be read, the pushing and pulling portion 54 can be directly toggled outside the plugging shell 3 to drive the plugging tab 5 on it to slide inside the plugging shell 3.

[0067] As a further optimization of this embodiment: Two limiting platforms 33 are arranged inside the plugging shell 3. The two limiting platforms 33 are arranged oppositely to jointly form a limiting channel for limiting the pushing and pulling portion 54. When the two side corner portions 52 are affected by the limiting platforms 33, they can only slide inside the plugging shell 3 and cannot slide outside. Therefore, the limiting effect on the plugging tab 5 is formed.

[0068] As Figure 7As shown, an anti-slip portion is formed on the push-pull portion 54. Under the action of the anti-slip portion, the contact area between the push-pull portion 54 and the operator's hand can be increased to achieve the anti-slip function. In this description, the anti-slip portion is specifically a strip-shaped groove. Through the setting of this strip-shaped groove, the friction force between it and the operator's hand contact surface can be increased during the actual pushing and pulling process of the push-pull portion 54, so as to better achieve the pushing and pulling operation. In the actual application process, the strip-shaped groove can also be changed into other forms of grooves. Similarly, the anti-slip portion can also be set as a protrusion protruding from the surface of the push-pull portion 54 to achieve the anti-slip effect.

[0069] Embodiment 2

[0070] Further optimize the smart meter provided in Embodiment 1. Specifically, as Figure 4 shown, the locking element 4 includes a lock beam 41 and a lock body 42. Among them, the movable end of the lock beam 41 penetrates through one of the first sealing grooves 31 and sequentially passes through two second sealing grooves 51 and finally passes out through the other first sealing groove 31 to be locked with the lock body 42.

[0071] As Figure 3 shown, when the positions of the two first sealing grooves 31 and the two second sealing grooves 51 are in a corresponding state, at this time, the first sealing groove 31 and the second sealing groove 51 together form a strip-shaped channel. At this time, the lock beam 41 located inside it is in a natural state. When it is necessary to read the infrared data of the smart meter through the through groove 11, when pulling down the sealing pull tab 5, the pulled sealing pull tab 5 will drive the lock beam 41 located inside the sealing shell 3 to move down through the second sealing groove 51 on it, promoting the inner contraction of the external lock beam 41 to meet the sliding stroke requirement of the sealing pull tab 5. Therefore, at the beginning of the actual design, the length of the lock beam 41 should be set to meet the above usage requirements.

[0072] The two ends of the lock beam 41 are locked through the lock body 42, so that when pulling down the sealing pull tab 5 to expose the through groove 11 for data reading or pushing up the sealing pull tab 5 to seal and protect the through groove 11, there is no need to unlock the locking element 4, and the actual reading or protection requirements can be met, greatly improving the practicability of the smart meter;

[0073] In this embodiment, the lock beam 41 and the lock body 42 in the locking element 4 are respectively made of a lead seal rope and a lead lock body. One end of the lead seal rope is fixed on the lead lock body, and the other end can be finally inserted into the lead lock body for locking after passing through the area to be locked. In the actual application process, the lock beam 41 can also be made of materials other than the lead seal rope, such as other metal ropes, etc.

[0074] Embodiment 3

[0075] Further optimize the smart meter provided in Embodiment 1 or 2. As Figure 4 、 Figure 5and Figure 6 As shown in Figure 6 , an opening groove 36 is provided at the outer end of the plugging shell 3;

[0076] The smart meter further includes a magnetic attracting steel sheet 34, which is installed on the opening groove 36, and magnetic attraction can be carried out between the magnetic attracting steel sheet 34 and the plugging tab 5;

[0077] An infrared reading hole 32 is provided on the magnetic attracting steel sheet 34, and is correspondingly arranged with the infrared emitting end of the infrared emitting module 2 and the through groove 11.

[0078] A locking post 35 extends from the bottom wall of the plugging shell 3 towards the opening groove 36. The magnetic attracting steel sheet 34 is fixed on the surface of the plugging shell 3 through the locking post 35, and the infrared reading hole 32 is located on the magnetic attracting steel sheet 34.

[0079] Through the structural setting of the above-mentioned locking post 35, the magnetic attracting steel sheet 34 can be fixed at the outer end of the plugging shell 3 to form a plugging protection for its internal space. In this way, without damaging the external locking element 4, the plugging tab 5 will not fall off or be lost.

[0080] Since the magnetic attracting steel sheet 34 has magnetic attraction, and as shown in Figure 6 , the inner side of the magnetic attracting steel sheet 34 is closely attached to the outer side of the plugging tab 5. Therefore, it not only ensures the stable sliding of the plugging tab 5 inside the plugging shell 3 and avoids front-back shaking, but also can reduce the gap between the plugging tab 5 and the magnetic attracting steel sheet 34 when the plugging tab 5 is used for plugging to achieve a better blocking effect on the outside. At this time, sundries outside the infrared reading hole 32 are blocked outside by the action of the plugging tab 5, so as to realize the protection of the inside of the plugging shell 3 and the through groove 11. Figure 8 In the actual design process, the plugging tab 5 is made of a magnetic metal that can attract each other with the magnetic attracting steel sheet 34. In this way, the plugging tab 5 inside the plugging shell 3 can form a stable magnetic attraction with the magnetic attracting steel sheet 34 on the outside, which not only ensures the tight contact of the mutual contact surface and meets the requirements of plugging protection, but also can realize the positioning of its own height after pulling the plugging tab 5 for plugging, and will not lose the plugging protection of the through groove 11 due to self-sliding.

[0081] Example 4

[0082] The smart meter provided in Example 3 is further optimized. As shown in Figure 5 , Figure 8 , Figure 9 and Figure 10 ,

[0083] such as Figure 5 , Figure 8 , Figure 9 and Figure 10 , Figure 5 、 Figure 8 、 Figure 9 and Figure 10As shown in the figure, the electricity meter housing 1 includes a bottom case 15 and an upper case 12 that are snap-fitted together. A PCB board 13 is assembled between the bottom case 15 and the upper case 12. Among them, the electricity meter housing 1 further includes a module box 16 and a terminal block cover 14. The module box 16 is snapped onto the first end of the upper case 12, and the terminal block cover 14 is snapped onto the second end of the upper case 12. Both the module box 16 and the terminal block cover 14 are locked and connected to the bottom case 15.

[0084] A through slot 11 is provided on the upper case 12 and is correspondingly arranged with the infrared emission end of the infrared emission module 2. The infrared emission module 2 includes an infrared lens 21 and an infrared lamp 22 mounted on the PCB board 13.

[0085] In this embodiment, the through slot 11, the plugging shell 3, and the locking element 4 are provided on the surface of the upper case 12. However, in the actual application process, according to the different positions of the infrared emission end of the infrared emission module 2 inside the smart electricity meter, the through slot 11 can also be set at the corresponding position to meet the usage requirements in different situations.

[0086] Specifically, the infrared emission module 2 is electrically connected to the PCB board 13. Therefore, the data information of the smart electricity meter can be transmitted through the through slot 11 to the outside. At this time, the outside can receive the infrared information transmitted by the through slot 11 through the infrared receiving end close to the infrared reading hole 32 to meet the actual meter reading use.

[0087] Embodiment 5

[0088] Further optimize the smart electricity meter provided in Embodiment 4, such as Figure 5 , Figure 8 , Figure 9 and Figure 10 As shown, a water guide groove 150 is opened at the top of the bottom case 15.

[0089] Both ends of the water guide groove 150 extend outward along the top of the bottom case 15 to form water outlet holes 151 outside the module box 16.

[0090] Through the above structural design of the water guide groove 150, when water seeps at the connection between the bottom case 15 and the module box 16, the infiltrated liquid can collect inside the water guide groove 150. Since the water guide groove 150 extends along the width direction of the bottom case 15, the infiltrated liquid inside it will eventually be discharged through the water outlet holes 151.

[0091] Compared with the traditional structure with a single sealing rubber ring, it not only reduces the packaging difficulty but also can timely discharge the infiltrated rainwater, thus ensuring the protection of the internal components of the smart electricity meter.

[0092] The usage process of the intelligent electric meter provided by the present utility model is as follows: When it is necessary to read the electric meter data inside the intelligent electric meter, the plugging pull tab 5 is pulled down inside the plugging shell 3 to expose the through slot 11 thereon, and then an external infrared reading device is brought close to the plugging shell 3 and corresponds to the infrared reading hole 32. At this time, the shell receives and reads the emission signal of the internal infrared emission module 2 through the infrared reading hole 32 and the through slot 11. After the data reading is completed, the plugging pull tab 5 is slid upward to slide it back to its original position and form a plugging protection for the through slot 11.

[0093] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0094] Obviously, the embodiments described above are only a part of the embodiments of the present utility model, rather than all of the embodiments. The accompanying drawings show the preferred embodiments of the present utility model, but do not limit the patent scope of the present utility model. The present utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present utility model more thorough and comprehensive. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements for some of the technical features. Any equivalent structure directly or indirectly using the content of the specification and drawings of the present utility model in other related technical fields is similarly within the scope of the patent protection of the present utility model.

Claims

1. An intelligent electric meter, comprising an electric meter housing (1) and an infrared emission module (2) disposed inside thereof, characterized in that, Further included are: A through groove (11) which is arranged on the surface of the meter housing (1) and corresponds to the infrared emission end of the infrared emission module (2); A plugging shell (3) which is installed on the surface of the meter housing (1) and is used to accommodate the through groove (11), and first plugging grooves (31) are correspondingly opened on both sides of the plugging shell (3); A plugging pull tab (5) which is movably arranged inside the plugging shell (3), and a second plugging groove (51) is formed on the plugging pull tab (5); A locking element (4) which passes through the first plugging groove (31) and the second plugging groove (51) together to form a lock on the plugging pull tab (5). Pulling the plugging pull tab (5) inside the plugging shell (3) can expose the reading of the through groove (11) or perform plugging protection.

2. The smart meter according to claim 1, characterized in that, Two side corner parts (52) are spaced and extended from the first end of the plugging pull tab (5), and the second plugging groove (51) is arranged on the side corner parts (52).

3. The smart meter according to claim 2, characterized in that, A pushing and pulling part (54) is extended from the second end of the plugging pull tab (5).

4. The smart meter according to claim 3, characterized in that, Two limiting platforms (33) are arranged inside the plugging shell (3), and the two limiting platforms (33) are arranged oppositely to jointly form a limiting channel for limiting the pushing and pulling part (54).

5. The smart meter according to claim 4, characterized in that The locking element (4) includes a lock beam (41) and a lock body (42); The movable end of the lock beam (41) penetrates into one of the first plugging grooves (31), sequentially passes through the two second plugging grooves (51), and finally penetrates out of the other first plugging groove (31) and is locked with the lock body (42).

6. The smart meter according to claim 1, characterized in that, An opening groove (36) is formed at the outer end of the plugging shell (3) for installing a magnetic attracting steel sheet (34), and magnetic attraction can be performed between the magnetic attracting steel sheet (34) and the plugging pull tab (5); An infrared reading hole (32) is arranged on the magnetic attracting steel sheet (34), and is correspondingly arranged with the infrared emission end of the infrared emission module (2) and the through groove (11).

7. The smart meter according to claim 6, characterized in that, A locking column (35) extends from the bottom wall of the plugging shell (3) towards the opening groove (36), and the magnetic attracting steel sheet (34) is fixed on the surface of the plugging shell (3) through the locking column (35).

8. The smart meter according to any one of claims 1-7, characterized in that, The meter housing (1) includes a bottom shell (15) and an upper shell (12) which are snap-fitted together, and a PCB board (13) is assembled between the bottom shell (15) and the upper shell (12); Among them, the meter housing (1) further includes a module box (16) and a terminal block cover (14). The module box (16) is buckled on the first end of the upper shell (12), the terminal block cover (14) is buckled on the second end of the upper shell (12), and both the module box (16) and the terminal block cover (14) are locked and connected to the bottom shell (15); The through groove (11) is arranged on the upper shell (12) and corresponds to the infrared emission end of the infrared emission module (2).

9. The smart meter according to claim 8, characterized in that, The infrared emission module (2) includes an infrared lens (21) and an infrared lamp (22) which are installed on the PCB board (13).

10. The smart meter according to claim 8, characterized in that, A water guide groove (150) is opened at the top end of the bottom shell (15); Both ends of the water guide groove (150) extend outward along the top of the bottom shell (15) to form water outlet holes (151) outside the module box (16).

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