Infrared induction waterproof front plate integrated structure of intelligent electric power meter

Abstract

The application provides a kind of intelligent electric power meter infrared induction waterproof front plate integrated structure, it is related to electric power meter technical field, including front plate main body, infrared induction unit, waterproof sealing system and quick installation and disassembly mechanism, front plate main body includes outer waterproof panel and back cover, infrared induction unit includes infrared induction module, signal transmission module and main control circuit, waterproof sealing system includes negative pressure type sealing ring, miniature vacuum pump and negative pressure linkage control assembly, quick installation and disassembly mechanism includes elastic buckle, clamping groove and magnetic attraction positioning piece.The beneficial effects of the application: through the combination of negative pressure type sealing system and multiple waterproof design, improve waterproof performance, infrared induction and touch module are optimized, accurate and sensitive and waterproof, quick installation and disassembly mechanism and threaded hole reinforcement, easy to maintain, nested structure saves space, sealed cavity and installation cavity separate drainage, multiple function integration and synergistic work, reduce the probability of failure and maintenance cost.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of electric power meters, and in particular to an infrared sensing waterproof front plate integrated structure of an intelligent electric power meter. Background Art

[0002] Smart power meters play a key role in power system monitoring and parameter measurement. In humid and water-prone environments, waterproof performance is key to ensuring their stable operation. The addition of infrared sensing function enables contactless operation and improves user experience. In the actual application of smart power meters, the front panel is a key component for human-computer interaction and protection. Its performance directly affects the user experience and stability of the meter.

[0003] Existing smart power meter front panels mostly use traditional sealing strip structures for waterproof design. The sealing effect relies on physical extrusion. After long-term use, the seal is prone to failure due to aging and deformation, which cannot meet the requirements of reliable operation in humid and water-rich environments. At the same time, when the infrared sensing module is integrated with the front panel, the signal transmission is easily interfered with, the sensing accuracy is insufficient, and the touch panel is not waterproof. Problems such as insensitive operation and accidental touch often occur, seriously affecting the user's convenience and accuracy in operating the meter.

[0004] The existing front panel installation structure is complex, and multiple tools are required for precise alignment during installation, which consumes a lot of time and labor costs. Disassembly and maintenance are difficult, and parts are easily damaged, increasing maintenance costs. In addition, the overall structural design of the front panel does not fully consider space utilization and heat dissipation requirements, resulting in a larger instrument size and poor heat dissipation of internal components, which reduces the reliability and service life of the instrument.

[0005] It should be noted that the above content belongs to the technical knowledge scope of the inventor. Since the technical content in this field is vast and too complicated, the above content of this application does not necessarily constitute prior art. Summary of the Invention

[0006] 1. Technical problem to be solved by the invention:

[0007] The present invention provides an infrared sensing waterproof front plate integrated structure of an intelligent power meter, which is used to solve the technical problems existing in the above-mentioned background technology.

[0008] 2. Technical solution:

[0009] To achieve the above-mentioned purpose, the present invention provides a technical solution: an integrated structure of an infrared sensing waterproof front plate for a smart power meter, comprising a front plate body, an infrared sensing unit, a waterproof sealing system, and a quick installation and disassembly mechanism:

[0010] The front panel body includes an outer waterproof panel and a rear cover plate, wherein the outer waterproof panel and the rear cover plate are respectively provided with a front cavity and a rear cavity, and a heat dissipation fin is provided on the outside of the rear cavity. The front cavity and the rear cavity are assembled together to form an electrical isolation cavity;

[0011] The infrared sensing unit includes an infrared sensing module, a signal transmission module and a main control circuit arranged in the front cavity, and the infrared sensing module, the signal transmission module and the main control circuit are electrically connected through a flexible connection line;

[0012] The waterproof sealing system includes a negative pressure sealing ring, a micro vacuum pump, and a negative pressure linkage control component. The negative pressure sealing ring is embedded between the outer waterproof panel and the rear cover. The micro vacuum pump is disposed in the front cavity and is connected to the negative pressure sealing ring via an air pipe. The negative pressure linkage control component includes multiple sets of sensing contacts disposed at the end surface of the front cavity and a capacitive sensing layer disposed in the rear cavity. The sensing contacts are disposed corresponding to the capacitive sensing layer.

[0013] The quick installation and disassembly mechanism includes an elastic buckle, a slot and a magnetic positioning piece. The elastic buckle is located at the edge of the outer waterproof panel, and the slot is opened on the rear cover and corresponds to the position of the elastic buckle.

[0014] Furthermore, the negative pressure sealing ring is arranged around the periphery of the front cavity, and a hollow negative pressure cavity is provided in the negative pressure sealing ring. One side of the negative pressure sealing ring is provided with dense micro-inhalation holes, and the other side is provided with an air inlet.

[0015] Furthermore, the air pipe passes through the side wall of the front cavity and is connected to the air inlet, and a waterproof sealing joint is provided at the connection between the air pipe and the front cavity.

[0016] Furthermore, a touch panel is provided on the other side of the outer waterproof panel away from the front cavity, the rear end of the touch panel is sealed and connected to the front cavity, and waterproof gel is filled between the outer waterproof panel and the touch panel.

[0017] Furthermore, the rear cover plate is provided with an outer edge boss, a plurality of drainage holes are provided on the inner wall of the outer edge boss and at the lower end of the rear cover plate, and a plurality of the card slots are located on the inner side of the outer edge boss.

[0018] Furthermore, a sealing cavity and an installation cavity are formed between the outer waterproof panel and the rear cover plate after being isolated by the negative pressure sealing ring, and the plurality of drainage holes are connected to the installation cavity.

[0019] Furthermore, the magnetic positioning member includes a permanent magnet and a magnetic adsorption sheet, the permanent magnet is arranged on the inner side of the card slot, and the magnetic adsorption sheet is arranged on the inner side of the elastic buckle.

[0020] 3.Beneficial effects:

[0021] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0022] Excellent waterproofing is achieved through the combination of a negative pressure sealing system and multiple waterproof designs. Under the action of a micro vacuum pump, the negative pressure sealing ring uses the negative pressure cavity and micro suction holes to generate suction, tightly adsorbing the sealing ring lip to the outer waterproof panel and the rear cover, forming a strong sealing barrier. Compared with traditional sealing strip waterproof structures, the sealing performance is greatly improved, effectively extending the service life of the instrument;

[0023] The nested structure design of the front and rear cavities makes the waterproof front plate thinner, effectively saving internal space of the instrument. The separation design of the sealing cavity and the installation cavity not only protects the internal electrical components, but also enables the timely drainage of water seepage in the installation cavity through the drainage holes in the rear cover, preventing water accumulation from damaging the internal structure, ensuring that the electronic components operate at an appropriate temperature, and improving the reliability of the overall operation of the instrument.

[0024] It integrates multiple functions such as infrared sensing, touch operation, and waterproof sealing. The functional modules work together through a carefully designed connection structure and control logic, reducing mutual interference between components and improving the stability and reliability of the overall system. The integrated structural design ensures the stable operation of the smart power meter in different application scenarios, reduces the probability of failure, and reduces maintenance costs and frequency.

[0025] The design of the quick installation and removal mechanism makes the installation and removal of the front panel body easy and efficient. Combined with the preliminary positioning function of the magnetic positioning piece, it can be quickly aligned during installation, reducing installation time and difficulty. The firm connection between the elastic clip and the slot ensures stability after installation. During maintenance, the front panel body can be separated with simple operations, facilitating the inspection and replacement of internal electronic components.

[0026] It should be noted that the structures not introduced in the present invention are the same as those in the prior art or can be implemented by using the prior art, and are not described in detail here because they do not involve the design points and improvement directions of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structural assembly of the present invention;

[0028] Figure 2 It is an exploded schematic diagram of the overall structure of the present invention;

[0029] Figure 3 This is a schematic structural diagram of the outer waterproof panel of the present invention;

[0030] Figure 4 This is a schematic diagram of the outer waterproof panel structure of the present invention from another angle;

[0031] Figure 5 It is an enlarged schematic diagram of the local structure of the outer waterproof panel of the present invention;

[0032] Figure 6 This is a schematic diagram of the rear cover structure of the present invention;

[0033] Figure 7 This is a schematic diagram of the rear cover structure from another angle of the present invention;

[0034] Figure 8 It is an enlarged schematic diagram of the local structure of the rear cover plate of the present invention;

[0035] Figure 9 This is a schematic diagram of the structure of the negative pressure sealing ring of the present invention;

[0036] Figure 10 It is a schematic cross-sectional view of the local structure of the negative pressure sealing ring of the present invention.

[0037] Reference numerals:

[0038] 1. Outer waterproof panel; 2. Back cover; 3. Front cavity; 4. Back cavity; 5. Infrared sensing module; 6. Signal transmission module; 7. Main control circuit; 8. Negative pressure sealing ring; 801. Negative pressure cavity; 802. Micro air intake hole; 803. Air inlet; 9. Micro vacuum pump; 10. Air pipe; 11. Elastic buckle; 12. Card slot; 13. Heat dissipation fins; 14. Negative pressure linkage control component; 15. Sensor touch piece; 16. Capacitive sensing layer; 17. Touch panel; 18. Outer edge boss; 19. Drain hole. DETAILED DESCRIPTION

[0039] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0042] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," "fixed," "provided with," "provided on," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integral connection; they may refer to mechanical connection or electrical connection; they may refer to direct connection or indirect connection through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0043] Refer to the attached Figure 1-10 , an intelligent power meter infrared sensing waterproof front plate integrated structure, including a front plate body, an infrared sensing unit, a waterproof sealing system and a quick installation and disassembly mechanism:

[0044] The front panel body includes an outer waterproof panel 1 and a rear cover 2. The outer waterproof panel 1 and the rear cover 2 are respectively provided with a front cavity 3 and a rear cavity 4. The outside of the rear cavity 4 is provided with a heat dissipation fin 13. The front cavity 3 and the rear cavity 4 are assembled together to form an electrical isolation cavity.

[0045] The infrared sensing unit includes an infrared sensing module 5, a signal transmission module 6 and a main control circuit 7 arranged in the front cavity 3. The infrared sensing module 5, the signal transmission module 6 and the main control circuit 7 are electrically connected through a flexible connection line;

[0046] The waterproof sealing system includes a negative pressure sealing ring 8, a micro vacuum pump 9, and a negative pressure linkage control component 14. The negative pressure sealing ring 8 is embedded between the outer waterproof panel 1 and the rear cover 2. The micro vacuum pump 9 is set in the front cavity 3 and is connected to the negative pressure sealing ring 8 through the air pipe 10.

[0047] The quick installation and disassembly mechanism includes an elastic buckle 11, a slot 12 and a magnetic positioning piece. The elastic buckle 11 is located at the edge of the outer waterproof panel 1, and the slot 12 is opened on the rear cover 2 and corresponds to the position of the elastic buckle 11.

[0048] The integrated structure of the infrared sensing waterproof front panel of the smart power meter is mainly composed of four core parts: the front panel body, the infrared sensing unit, the waterproof sealing system and the quick installation and disassembly mechanism. These parts work together to achieve functions such as waterproofing, infrared sensing and convenient installation, ensuring the stable operation of the smart power meter in complex environments.

[0049] The front panel body serves as the basic framework of the entire integrated structure and is composed of an outer waterproof panel 1 and a rear cover 2. Both the outer waterproof panel 1 and the rear cover 2 are provided with grooves for embedding a negative pressure sealing ring 8, which fits tightly with the lip of the negative pressure sealing ring 8. The outer waterproof panel 1 is made of high-strength waterproof engineering plastic and is formed by a precision injection molding process. The side facing the outside of the instrument is designed with a smooth surface to reduce water stains and has good wear resistance and impact resistance. The rear cover 2 is also made of high-quality waterproof material, which matches the material properties of the outer waterproof panel 1 to ensure the waterproof consistency of the overall structure.

[0050] A front cavity 3 is provided inside the outer waterproof panel 1. The front cavity 3 is integrally formed by a mold, and its shape and size precisely adapt to the electronic components installed inside, providing a stable installation space for the infrared sensing module 5, the signal conduction module 6, etc. A rear cavity 4 is correspondingly provided on the rear cover 2. The front cavity 3 and the rear cavity 4 adopt a nested matching method in structural design. When the outer waterproof panel 1 and the rear cover 2 are assembled, the front cavity 3 can be accurately inserted into the rear cavity 4, and the side walls of the two fit tightly. The matching gap is controlled within a very small range to ensure stability and sealing after assembly. After the front cavity 3 and the rear cavity 4 are installed together, they form an electrical isolation cavity. The isolation cavity can effectively prevent the influence of external electromagnetic interference on the internal electronic components, and also provide physical protection for the internal circuit to prevent the components from being damaged by accidental collision or extrusion. The heat generated by the internal electronic components can meet the heat dissipation requirements through the heat dissipation fins 13 on the outside of the rear cavity 4, avoiding damage and extending the service life of the electrical components.

[0051] The infrared sensing unit is the core component for realizing non-contact operation of the smart power meter, including an infrared sensing module 5, a signal transmission module 6 and a main control circuit 7 arranged in the front cavity 3. The infrared sensing module 5 is installed in a specific area of ​​the front cavity 3. This area has been specially designed and has reserved precise mounting holes and fixing structures. The infrared sensing module 5 is firmly fixed by screws or buckles to ensure that it will not move during the operation of the meter. The infrared sensing module 5 is mainly composed of an infrared transmitting tube and an infrared receiving tube. It can emit and receive infrared signals to realize sensing of the approaching human body or object.

[0052] The signal conduction module 6 is installed next to the infrared sensing module 5 and is electrically connected to the infrared sensing module 5 through a specific interface to ensure the stability and reliability of signal transmission. The signal conduction module 6 is responsible for preliminary processing and amplification of the signal output by the infrared sensing module 5 so that it can meet the requirements of long-distance transmission. The main control circuit 7, as the control core of the entire infrared sensing unit, is installed in a relatively independent and convenient wiring position in the front cavity 3. The infrared sensing module 5, the signal conduction module 6 and the main control circuit 7 are electrically connected through a flexible connecting line. The flexible connecting line is wrapped with highly flexible insulating material, and the internal wires are specially shielded, which can effectively reduce interference during signal transmission. The two ends of the flexible connecting line are connected to each module through a dedicated connector. This connection method is not only convenient for installation and disassembly, but also ensures the tightness and stability of the electrical connection.

[0053] The waterproof sealing system is the key to ensuring the waterproof performance of the smart power meter. It mainly includes a negative pressure sealing ring 8, a micro vacuum pump 9 and a negative pressure linkage control component 14. The negative pressure sealing ring 8 is made of high-performance elastic rubber material, has good flexibility and weather resistance, and can maintain stable sealing performance under different temperature and humidity environments. The negative pressure sealing ring 8 has an annular structure, and its size is precisely adapted to the edge contours of the outer waterproof panel 1 and the rear cover 2. It is embedded in the sealing groove between the outer waterproof panel 1 and the rear cover 2. During the installation process, the negative pressure sealing ring 8 is accurately embedded in the sealing groove using special tools to ensure that the sealing ring fits tightly against the groove wall without obvious gaps.

[0054] The micro vacuum pump 9 is arranged in the front cavity 3. Its installation position has been carefully planned to ensure convenient connection with the air pipe of the negative pressure sealing ring 8 and to avoid interference with other electronic components. The micro vacuum pump 9 is connected to the negative pressure sealing ring 8 through the air pipe 10. The air pipe 10 is made of high-strength and bending-resistant material. Its inner diameter is accurately calculated to ensure smooth flow of gas. The air pipe 10 passes through the side wall of the front cavity 3 and is connected to the air inlet 803 of the negative pressure sealing ring 8. A waterproof sealing joint is provided at the connection between the air pipe 10 and the front cavity 3. The waterproof sealing joint adopts a double sealing structure with a rubber sealing ring inside and a threaded fastener on the outside, which can effectively prevent moisture from penetrating into the electrical isolation cavity through the connection of the air pipe 10.

[0055] The negative pressure linkage control component 14 includes multiple groups of sensing contacts 15 arranged at the end face of the front cavity 3 and a capacitive sensing layer 16 arranged in the rear cavity 4. The sensing contacts 15 are made of a metal material with good conductive properties and are fixed to the end face of the front cavity 3 through printed circuit board technology. Their positions correspond to the capacitive sensing layer 16 in the rear cavity 4. When the outer waterproof panel 1 and the rear cover 2 are assembled, as the front cavity 3 is gradually inserted into the rear cavity 4, the sensing contacts 15 on the front cavity 3 will gradually approach and contact the capacitive sensing layer 16 in the rear cavity. The capacitive sensing layer 16 can detect the approach of the sensing contacts 15 The capacitance change caused by the contact is converted into an electrical signal and transmitted to the main control circuit 7. After receiving the signal, the main control circuit 7 makes a logical judgment and processes it, and issues an instruction to drive the micro vacuum pump 9 to work. After the micro vacuum pump 9 is started, the negative pressure cavity 801 inside the negative pressure sealing ring 8 is evacuated, so that a negative pressure environment is formed in the negative pressure cavity. Through the dense micro suction holes 802 opened on the surface of one side of the negative pressure cavity 801, a strong suction force is generated, and the lip of the negative pressure sealing ring 8 is tightly adsorbed on the outer waterproof panel 1 and the back cover 2, thereby achieving an efficient sealing effect and effectively preventing moisture from entering the electrical isolation cavity.

[0056] The design of the quick installation and removal mechanism is intended to improve the installation and maintenance efficiency of the front panel of the smart power meter. It includes an elastic clip 11, a slot 12, and a magnetic positioning piece. The elastic clip 11 is made of high-strength elastic metal material and formed through a precision stamping process, which has good elasticity and durability. The elastic clips 11 are evenly distributed at the edge of the outer waterproof panel 1. Their number and position are reasonably designed according to the size and shape of the outer waterproof panel 1. One end of each elastic clip 11 is fixed to a specific position on the edge of the outer waterproof panel 1, and the other end is a movable clip tongue. The end of the clip tongue is designed with a guide slope to facilitate smooth insertion into the slot 12 during installation.

[0057] The card slot 12 is opened on the rear cover 2 and corresponds to the position of the elastic card buckle 11. The shape and size of the card slot 12 are precisely matched with the card buckle tongue of the elastic card buckle 11. During installation, the outer waterproof panel 1 is placed close to the rear cover 2. The card buckle tongue of the elastic card buckle 11 automatically slides into the card slot 12 under the guidance of the guide slope. With further pressing, the card buckle tongue will be snapped into the bottom of the card slot 12 under the action of elasticity, realizing a firm mechanical connection.

[0058] The magnetic positioning part includes a permanent magnet and a magnetic adsorption sheet. The permanent magnet is arranged on the inner side of the slot 12, and the magnetic adsorption sheet is arranged on the inner side of the elastic buckle 11. In the initial stage of installation, when the outer waterproof panel 1 and the rear cover 2 are close, the magnetic force between the permanent magnet and the magnetic adsorption sheet can make the two initially aligned and positioned, providing assistance for the accurate matching of the elastic buckle 11 and the slot 12, reducing the difficulty of alignment during the installation process, and improving the installation efficiency. When disassembling, it is only necessary to apply appropriate external force to overcome the elastic force of the elastic buckle 11 to separate the outer waterproof panel 1 and the rear cover 2. The operation is simple and quick.

[0059] The negative pressure sealing ring 8 is arranged around the periphery of the front cavity 3, and a hollow negative pressure chamber 801 is provided inside it. The shape of the negative pressure chamber 801 has been optimized and is runway-shaped in cross section, with semicircular ends and a parallel straight-edge structure in the middle. This shape can ensure sufficient cavity volume to maintain negative pressure while making the various parts of the sealing ring more evenly stressed when under pressure, avoiding seal failure caused by stress concentration. The semicircular end design helps to reduce the resistance of gas flow in the cavity, ensuring that the negative pressure can be quickly and evenly distributed throughout the sealing ring.

[0060] A micro-suction hole 802 is provided on one side of the negative pressure sealing ring 8. The micro-suction hole 802 is circular and has a very small diameter, generally between 0.1 and 0.3 mm, to ensure that sufficient suction can be generated without causing external water vapor or impurities to enter the negative pressure chamber 801 due to the excessive aperture. The micro-suction holes 802 are arranged in a matrix on the surface of the sealing ring, and the spacing between two adjacent micro-suction holes 802 is consistent to ensure that the negative pressure can act evenly on the sealing surface, tightly adsorbing the sealing ring on the outer waterproof panel 1 and the rear cover plate 2. An air inlet 803 is provided on the other side, and an internal thread is provided inside the air inlet 803 for threaded connection with the trachea 10. A rubber sealing ring is also provided at the connection between the air inlet 803 and the trachea 10 to further ensure the sealing of the connection and prevent gas leakage.

[0061] The trachea 10 passes through the side wall of the front cavity 3 and is connected to the air inlet 803. In order to ensure the waterproof performance of the connection between the trachea 10 and the front cavity 3, a waterproof sealing joint is set at this position. The waterproof sealing joint consists of two parts, which are respectively fixed on the inner and outer sides of the side wall of the front cavity 3. The inner part is tightly fitted with the trachea 10, and the outer part is tightened with the inner part through a thread. Between the inner and outer parts, there are multiple layers of rubber sealing rings. Under the pressure of tightening the threads, these sealing rings can fit tightly against the trachea 10 and the side walls of the front cavity 3, forming a reliable waterproof barrier, effectively preventing moisture from penetrating into the electrical isolation cavity through the connection between the trachea 10 and the front cavity 3.

[0062] A touch panel 17 is provided on the other side of the outer waterproof panel 1 away from the front cavity 3. The touch panel 17 is made of highly transparent and wear-resistant glass material, and its surface has been specially treated with anti-fingerprint and anti-glare treatments to enhance the user's operating experience. The rear end of the touch panel 17 is sealed to the front cavity 3 by a sealant. The sealant is a high-performance waterproof sealant with good adhesion and water resistance. It can form a continuous and uniform sealing layer between the touch panel 17 and the front cavity 3 to prevent moisture from penetrating from the connection between the two. A waterproof gel is filled between the outer waterproof panel 1 and the touch panel 17. The waterproof gel has good fluidity and sealing properties. During the filling process, it can fully fill the tiny gap between the two, further enhancing the waterproof effect and ensuring touch Waterproof performance of the panel 17 area; the touch panel 17 is integrated with a capacitive touch sensing circuit, which is connected to the main control circuit 7 in the front cavity 3 through a flexible circuit board. The flexible circuit board has the characteristics of good flexibility and small space occupation. One end is precisely welded to the pin of the touch sensing circuit of the touch panel 17 through a connector, and the other end passes through the waterproof threading hole reserved on the side wall of the front cavity 3 and is connected to the corresponding interface on the main control circuit 7. A waterproof sealing joint is provided at the waterproof threading hole, and a rubber sealing ring is contained inside the joint. When the flexible circuit board passes through, the rubber sealing ring can be tightly wrapped around the flexible circuit board by tightening the threaded part on the outside of the joint to prevent moisture from entering the front cavity 3 along the threading hole, thereby ensuring the stability and waterproofness of the electrical connection.

[0063] The rear cover 2 is also provided with an outer edge boss 18. The outer edge boss 18 is made of the same waterproof material as the rear cover 2 and is manufactured through an integrated molding process. A plurality of drainage holes 19 are provided on the inner wall of the outer edge boss 18 and at the lower end of the rear cover 2. The diameter of the drainage hole 19 is very small, generally controlled between 1-2 mm. This small diameter design can effectively prevent larger particles of impurities from entering, while ensuring that moisture can be discharged smoothly. A plurality of card slots 12 are located on the inner side of the outer edge boss 18. While ensuring the quick installation and disassembly function, the design of the outer edge boss 18 and the drainage hole 19 provides a drainage channel for the installation cavity.

[0064] The outer waterproof panel 1 and the back cover plate 2 are separated by the negative pressure sealing ring 8 to form a sealed cavity and a mounting cavity, the sealed cavity is used for protecting internal electrical elements, and the mounting cavity is a mounting gap after assembly, and a small amount of water will inevitably enter the mounting cavity during use of the instrument, at this time, the water can be discharged through the drain hole 19 at the bottom of the back cover plate 2, so that water accumulation in the mounting cavity is avoided, damage to the internal structure is avoided, and the reliability and durability of the waterproof front panel integrated structure are further improved.

[0065] When the outer waterproof panel 1 and the back cover plate 2 are assembled, the front cavity 3 is inserted into the rear cavity 4, and the nested structure design makes the waterproof front panel thinner in volume, effectively saves the installation space of the instrument, meets the design requirements of miniaturization and lightness of modern intelligent power meters, and simultaneously, the close cooperation of the front cavity 3 and the rear cavity 4 and the sealing effect of the negative pressure sealing ring 8 further enhance the sealing performance, the side walls of the front cavity 3 and the rear cavity 4 are extruded during the insertion of the front cavity 3 into the rear cavity 4, so that the sealing effect is further improved, and water and external impurities are effectively prevented from entering the electrical isolation cavity, so that a more reliable protection environment is provided for internal electronic elements of the intelligent power meter.

[0066] In another embodiment, the outer waterproof panel 1 and the back cover plate 2 can be reinforced and installed through threaded holes, so as to further enhance the structural stability of the front panel body, the threaded holes are arranged at the mounting cavity position, and are specially designed and processed, so as not to affect the sealing effect of the sealed cavity;

[0067] The outer waterproof panel 1 and the back cover plate 2 are molded in a mold, that is, threaded holes are arranged at the machining position of the corresponding mounting cavity, the threaded holes are designed in a stepped manner, the hole diameter near the sealed cavity is small, and the hole wall of this part is smooth and has no thread, so as to ensure that the integrity of the sealed cavity is not damaged, the hole diameter near the outside is large, and a standard thread is processed, so that the threaded hole forms a buffer area inside the mounting cavity, even if a small amount of debris is generated during installation, the sealed cavity will not be entered, and the waterproof and dustproof performance of the sealed cavity is ensured.

[0068] The above-described embodiments only express certain embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the present application; it should be pointed out that, for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application; therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. An infrared sensing waterproof front plate integrated structure for an intelligent power meter, characterized by: Including the front panel body, infrared sensing unit, waterproof sealing system and quick installation and removal mechanism: The front panel body comprises an outer waterproof panel (1) and a rear cover (2); a front cavity (3) and a rear cavity (4) are respectively provided on the outer waterproof panel (1) and the rear cover (2); a heat dissipation fin (13) is provided on the outside of the rear cavity (4); and the front cavity (3) and the rear cavity (4) are assembled together to form an electrical isolation cavity; The infrared sensing unit comprises an infrared sensing module (5), a signal transmission module (6) and a main control circuit (7) arranged in the front cavity (3); the infrared sensing module (5), the signal transmission module (6) and the main control circuit (7) are electrically connected via a flexible connection line; The waterproof sealing system comprises a negative pressure sealing ring (8), a micro vacuum pump (9) and a negative pressure linkage control component (14), wherein the negative pressure sealing ring (8) is embedded between the outer waterproof panel (1) and the rear cover (2), the micro vacuum pump (9) is arranged in the front cavity (3) and is connected to the negative pressure sealing ring (8) through an air pipe (10), and the negative pressure linkage control component (14) comprises a plurality of groups of sensing touch pieces (15) arranged at the end surface of the front cavity (3) and a capacitive sensing layer (16) arranged in the rear cavity (4), wherein the sensing touch pieces (15) and the capacitive sensing layer (16) are arranged correspondingly; The quick installation and removal mechanism comprises an elastic buckle (11), a slot (12) and a magnetic positioning piece, wherein the elastic buckle (11) is located at the edge of the outer waterproof panel (1), and the slot (12) is provided on the rear cover (2) and corresponds to the position of the elastic buckle (11).

2. The infrared sensing waterproof front plate integrated structure of a smart power meter according to claim 1, characterized in that: The negative pressure sealing ring (8) is arranged around the periphery of the front cavity (3), and a hollow negative pressure cavity (801) is provided in the negative pressure sealing ring (8), one side of which is provided with dense micro-inhalation holes (802) and the other side is provided with an air inlet (803).

3. The infrared sensing waterproof front plate integrated structure of a smart power meter according to claim 2, characterized in that: The air pipe (10) passes through the side wall of the front cavity (3) and is connected to the air inlet (803). The connection between the air pipe (10) and the front cavity (3) is provided with a waterproof sealing joint.

4. The infrared sensing waterproof front plate integrated structure of a smart power meter according to claim 1, characterized in that: A touch panel (17) is provided on the other side of the outer waterproof panel (1) away from the front cavity (3); a rear end of the touch panel (17) is sealedly connected to the front cavity (3); and waterproof gel is filled between the outer waterproof panel (1) and the touch panel (17).

5. The infrared sensing waterproof front plate integrated structure of a smart power meter according to claim 1, characterized in that: The rear cover (2) is further provided with an outer edge boss (18), a plurality of drainage holes (19) are provided on the inner wall of the outer edge boss (18) and at the lower end of the rear cover (2), and a plurality of the card slots (12) are located on the inner side of the outer edge boss (18).

6. The infrared sensing waterproof front plate integrated structure of a smart power meter according to claim 5, characterized in that: The outer waterproof panel (1) and the rear cover plate (2) are isolated by the negative pressure sealing ring (8) to form a sealing cavity and an installation cavity, and the plurality of drainage holes (19) are connected to the installation cavity.

7. The infrared sensing waterproof front plate integrated structure of a smart power meter according to claim 1, characterized in that: The magnetic attraction positioning member comprises a permanent magnet and a magnetic attraction sheet, wherein the permanent magnet is arranged on the inner side of the card slot (12), and the magnetic attraction sheet is arranged on the inner side of the elastic buckle (11).

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