PCB guide rail electric energy meter

Abstract

The utility model provides a printed circuit board (PCB) guide rail electric energy meter, which belongs to the technical field of guide rail type electric energy meters, and comprises a PCB electric energy meter, the PCB electric energy meter is used for detecting electric energy consumption, an electric energy meter shell is arranged outside the PCB electric energy meter, a guide rail groove is arranged behind the electric energy meter shell, and the guide rail groove is matched with a guide rail. Limiting devices used for limiting the position of the PCB electric energy meter on the guide rail are arranged on the guide rail groove and the guide rail, and the limiting devices are located at the contact position of the guide rail and the guide rail groove. The limiting device comprises limiting blocks and blocking pieces, the limiting blocks are a plurality of blocky protrusions at the end, making contact with the guide rail groove, of the guide rail, the blocky protrusions are not in contact, the blocking pieces are elastic pieces on the left side and the right side of the end, making contact with the guide rail, of the guide rail groove, one ends of the elastic pieces and the guide rail groove are integrally formed, and the other ends of the elastic pieces face the concave positions formed by the limiting blocks. The elastic sheet inclines relative to the surface of the guide rail groove; according to the utility model, the PCB guide rail electric energy meter can be conveniently moved and fixed, and is convenient to install and use.

Description

Technical Field

[0001] The utility model belongs to the technical field of guide rail type electric energy meters, and in particular relates to a PCB board guide rail electric energy meter. Background Art

[0002] An electric energy meter is a measuring instrument used to measure the amount of electrical energy consumed by users in a power system. It is widely used in homes, commercial buildings, and industrial facilities, and is crucial for the rational allocation and management of power resources. Traditional electric energy meters typically employ mechanical structures. With the advancement of electronic technology, modern electric energy meters increasingly incorporate electronic circuits, particularly those based on printed circuit boards (PCBs).

[0003] PCB energy meters are those whose main components are mounted on a printed circuit board (PCB). These meters offer significant advantages over traditional mechanical meters, including smaller size, lighter weight, higher accuracy, and lower power consumption. Their high level of integration also makes them easy to mass-produce and maintain.

[0004] Modern PCB energy meters often utilize DIN rail mounting for ease of installation and removal. These meters are known as PCB rail meters. DIN rail is a standardized mounting method commonly used in electrical control cabinets and distribution boxes, enabling quick and secure positioning of the device. PCB rail meters offer all the advantages of PCB meters, while also offering the added convenience of DIN rail mounting for easier on-site installation and maintenance.

[0005] However, in practical applications, securing and moving PCB-mounted energy meters still presents some inconveniences. Existing PCB-mounted energy meters mostly use simple clips or screws for fastening. Moving or replacing the meter often requires loosening the screws or other fasteners, a time-consuming and labor-intensive process. Especially in confined environments, operators may need additional tools to complete this task, reducing work efficiency.

[0006] In addition, if the fixing device is improperly designed, it may cause the electricity meter to shake or loosen during normal use, affecting the measurement accuracy and equipment life. Utility Model Content

[0007] In view of this, the utility model provides a PCB board guide rail electric energy meter, which can fix the PCB board guide rail electric energy meter, prevent the electric energy meter from moving left and right, and facilitate the fixation and movement of the PCB board guide rail electric energy meter.

[0008] The utility model is achieved in this way:

[0009] The utility model provides a PCB board guide rail electric energy meter, comprising a PCB board electric energy meter, wherein the PCB board electric energy meter is used to detect electric energy consumption, wherein an electric energy meter housing is provided on the outside of the PCB board electric energy meter, and a guide rail groove is provided at the rear of the electric energy meter housing, wherein the guide rail groove is adapted to the guide rail, wherein a limiting device for limiting the position of the PCB board electric energy meter on the guide rail is provided on the guide rail groove and the guide rail, and the limiting device is located at the contact point between the guide rail and the guide rail groove.

[0010] On the basis of the above technical solution, the PCB board guide electric energy meter of the present invention can also be improved as follows:

[0011] In which, the limiting device includes a limiting block and a blocking piece, the limiting block is a plurality of block-shaped protrusions on the guide rail at one end that contacts the guide rail groove, and the plurality of block-shaped protrusions do not contact, and the blocking piece is an elastic piece on the left and right sides of the end of the guide rail groove that contacts the guide rail, one end of the elastic piece is integrally formed with the guide rail groove, and the other end faces the recess formed by the limiting block, and the elastic piece is inclined to the surface of the guide rail groove.

[0012] The beneficial effect of adopting the above-mentioned improvement scheme is that by providing the card block, the PCB board electric energy meter is fixed in the installation position and cannot be moved left or right.

[0013] Furthermore, the blocking pieces at both ends of the guide rail groove are inclined in opposite directions, the blocking piece on the left is inclined toward the left, and the blocking piece on the right is inclined toward the right.

[0014] The beneficial effect of adopting the above-mentioned improvement scheme is that the card blocking piece can limit the left and right movement of the PCB board electric energy meter through the card blocking piece tilted in opposite directions.

[0015] Furthermore, the included angle between the blocking piece and the surface of the guide rail groove is 30°.

[0016] Furthermore, a reversing mechanism is provided at the top of the card block, which is an elastic band, one end of which is fixedly connected to the top of the card block, and the other end of which is provided with a fixing hook. The side wall of the electric energy meter housing is provided with a protrusion, which is used to fix the fixing hook. When the fixing hook is placed on the protrusion on the side wall of the electric energy meter housing, the surface angle between the card block and the guide rail groove is less than 30°.

[0017] The beneficial effect of adopting the above-mentioned improvement scheme is that by providing a reversing mechanism, the PCB board electric energy meter can be easily moved left and right when it needs to be moved, thereby facilitating installation and use.

[0018] Furthermore, the width of the limit block protrusion is equal to the distance between the two protrusions.

[0019] Furthermore, the limiting device is a plurality of parallel protrusions arranged at the contact point between the guide rail and the guide rail groove, and the guide rail groove and the protrusions on the guide rail match each other.

[0020] The beneficial effect of adopting the above-mentioned improvement scheme is: by setting the guide rail groove and the mutually matching protrusions on the guide rail, the limit device can be easily moved when it needs to be moved, and when it needs to be fixed, the mutually matching protrusions fix the position of the PCB board electricity meter.

[0021] Furthermore, the parallel-arranged protrusions have a cross-section of an isosceles triangle, and the height of the triangle is equal to 2 (square root) 3 times the width of the base of the triangle.

[0022] Furthermore, the cross-section of the parallel-arranged protrusions is arc-shaped, and the radian of the arc-shaped protrusions is π / 3 to 2π / 3.

[0023] Furthermore, the plurality of parallel-arranged protrusions are in contact with each other.

[0024] Compared with the prior art, the beneficial effects of the PCB board guide electric energy meter provided by the utility model are:

[0025] Easy installation: The meter is designed to be mounted on a DIN rail, simplifying the installation process. Users simply slide the meter onto the rail to complete the installation, without the need for additional tools or fasteners. A stopper ensures the meter's position on the rail is fixed, preventing accidental displacement and improving installation reliability and stability.

[0026] Adjustability: The design of the card block allows the energy meter to be easily removed from the guide rail or repositioned when needed, which is convenient for maintenance or replacement of the energy meter. The presence of the reversing mechanism allows the energy meter to be easily moved in certain circumstances (such as for maintenance or replacement) without having to completely disassemble it.

[0027] Stability: The design of the limit block and the card block ensures that the electricity meter will not move laterally during normal use, improving the stability and safety of the electricity meter. The matching structure of the limit block and the card block ensures that the meter can remain well fixed even in a vibrating environment.

[0028] Flexibility: By changing the tilt angle of the card block and using the reversing mechanism, the position of the energy meter can be adjusted without affecting the overall stability; the parallel arrangement of the protrusions ensures the stability of the energy meter while providing sufficient flexibility to adapt to different installation requirements;

[0029] Cost-effective: This design reduces the need for special mounting hardware, helping to reduce costs and simplify maintenance.

[0030] In summary, this utility model not only improves the convenience of installation and use through its unique limit device design, but also enhances the stability and reliability of the electricity meter, while maintaining the flexibility of the design, making the product more efficient and practical in actual applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0032] Figure 1 A schematic diagram of a PCB board guide electric energy meter;

[0033] Figure 2 This is a transverse cross-sectional view of a first embodiment of a PCB board guide rail electric energy meter;

[0034] Figure 3 This is a transverse cross-sectional view of a second embodiment of a PCB board guide rail electric energy meter;

[0035] Figure 4 This is a transverse cross-sectional view of a second embodiment of a PCB board guide rail electric energy meter;

[0036] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0037] 1. PCB board electric energy meter; 2. Electric energy meter housing; 3. Guide rail groove; 4. Guide rail; 5. Limit device; 51. Limit block; 52. Card block; 53. Reversing mechanism. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0039] like Figure 1 , Figure 2 As shown, a first embodiment of a PCB board guide rail energy meter provided by the utility model is shown. In this embodiment, it includes a PCB board energy meter 1, which is used to detect energy consumption. The PCB board energy meter 1 is provided with an energy meter housing 2 on the outside, and a guide rail groove 3 is provided at the rear of the energy meter housing 2. The guide rail groove 3 is adapted to the guide rail 4, wherein the guide rail groove 3 and the guide rail 4 are provided with a limit device 5 for limiting the position of the PCB board energy meter 1 on the guide rail 4, and the limit device 5 is located at the contact point between the guide rail 4 and the guide rail groove 3.

[0040] Among them, in the above technical scheme, the limiting device 5 includes a limiting block 51 and a blocking piece 52. The limiting block 51 is a plurality of block-shaped protrusions on the guide rail 4 at one end in contact with the guide rail groove 3, and the plurality of block-shaped protrusions do not contact. The blocking piece 52 is an elastic piece on the left and right sides of the guide rail groove 3 at one end in contact with the guide rail 4. One end of the elastic piece is integrally formed with the guide rail groove 3, and the other end faces the recess formed by the limiting block 51. The elastic piece is inclined to the surface of the guide rail groove 3.

[0041] Furthermore, in the above technical solution, the blocking pieces 52 at both ends of the guide rail groove 3 are inclined in opposite directions, the blocking piece 52 on the left is inclined toward the left, and the blocking piece 52 on the right is inclined toward the right.

[0042] Furthermore, in the above technical solution, the included angle between the blocking piece 52 and the surface of the guide rail groove 3 is 30°.

[0043] Furthermore, in the above technical solution, a reversing mechanism 53 is provided at the top of the blocking piece 52. The reversing mechanism 53 is an elastic band, one end of which is fixedly connected to the top of the blocking piece 52, and the other end is provided with a fixing hook. The side wall of the electric energy meter housing 2 is provided with a protrusion, which is used to fix the fixing hook. When the fixing hook is placed on the protrusion on the side wall of the electric energy meter housing 2, the surface angle between the blocking piece 52 and the guide rail groove 3 is less than 30°.

[0044] When in use, place the fixing hook of the reversing mechanism 53 on the protrusion of the side wall of the electric energy meter housing 2. If it needs to move to the left, hang the fixing hook on the left side on the protrusion on the left side, and the angle between the blocking piece 52 and the guide rail groove 3 becomes smaller, and the PCB board electric energy meter 1 can move to the left. After the movement is completed, release the fixing hook, and the blocking piece 52 is stuck in the recess formed by the adjacent limit block 51, and cannot move, thereby fixing the position of the PCB board electric energy meter 1.

[0045] Furthermore, in the above technical solution, the width of the protrusion of the limiting block 51 is equal to the distance between the two protrusions.

[0046] like Figure 1 , Figure 3 As shown in the figure, it is a second embodiment of a PCB board guide rail electric energy meter provided by the utility model. In this embodiment, it includes a PCB board electric energy meter 1, which is used to detect electric energy consumption. The PCB board electric energy meter 1 is provided with an electric energy meter housing 2 on the outside, and a guide rail groove 3 is provided at the rear of the electric energy meter housing 2. The guide rail groove 3 is adapted to the guide rail 4, wherein the guide rail groove 3 and the guide rail 4 are provided with a limit device 5 for limiting the position of the PCB board electric energy meter 1 on the guide rail 4, and the limit device 5 is located at the contact point between the guide rail 4 and the guide rail groove 3.

[0047] Among them, in the above technical solution, the limiting device 5 is a plurality of parallel protrusions arranged at the contact point between the guide rail 4 and the guide rail groove 3, and the protrusions on the guide rail groove 3 and the guide rail 4 match each other.

[0048] When moving the PCB board electric energy meter 1, if the PCB board electric energy meter 1 needs to be moved to the left, the PCB board electric energy meter 1 is moved. At this time, the mutually matching protrusions on the guide groove 3 and the guide rail 4 are displaced, and the highest points of the relative protrusions contact each other, causing the guide groove 3 and the guide rail 4 to deform. Continue to move, and the highest points of the relative protrusions separate. The movement is completed, and the PCB board electric energy meter 1 moves to the left; when fixed, since the highest points of the relative protrusions need to contact each other if the PCB board electric energy meter 1 is to move, and thus the guide groove 3 and the guide rail 4 need to deform significantly, the PCB board electric energy meter 1 cannot move left or right.

[0049] Furthermore, in the above technical solution, the parallel-arranged protrusions have a cross-section of an isosceles triangle, and the height of the triangle is equal to 2 (square root) 3 times the width of the base of the triangle.

[0050] like Figure 1 , Figure 4 As shown, it is a third embodiment of a PCB board guide rail energy meter provided by the utility model. In this embodiment, it includes a PCB board energy meter 1, which is used to detect energy consumption. The PCB board energy meter 1 is provided with an energy meter housing 2 on the outside, and a guide rail groove 3 is provided at the rear of the energy meter housing 2. The guide rail groove 3 is adapted to the guide rail 4, wherein the guide rail groove 3 and the guide rail 4 are provided with a limit device 5 for limiting the position of the PCB board energy meter 1 on the guide rail 4, and the limit device 5 is located at the contact point between the guide rail 4 and the guide rail groove 3.

[0051] Among them, in the above technical solution, the limiting device 5 is a plurality of parallel protrusions arranged at the contact point between the guide rail 4 and the guide rail groove 3, and the protrusions on the guide rail groove 3 and the guide rail 4 match each other.

[0052] When moving the PCB board electric energy meter 1, if the PCB board electric energy meter 1 needs to be moved to the left, the PCB board electric energy meter 1 is moved. At this time, the mutually matching protrusions on the guide groove 3 and the guide rail 4 are displaced, and the highest points of the relative protrusions contact each other, causing the guide groove 3 and the guide rail 4 to deform. Continue to move, and the highest points of the relative protrusions separate. The movement is completed, and the PCB board electric energy meter 1 moves to the left; when fixed, since the highest points of the relative protrusions need to contact each other if the PCB board electric energy meter 1 is to move, and thus the guide groove 3 and the guide rail 4 need to deform significantly, the PCB board electric energy meter 1 cannot move left or right.

[0053] Furthermore, in the above technical solution, the cross-section of the parallel-arranged protrusions is arc-shaped, and the curvature of the arc-shaped protrusions is π / 3 to 2π / 3.

[0054] Furthermore, in the above technical solution, a plurality of protrusions arranged in parallel are in contact with each other.

[0055] Specifically, the principle of the present utility model is:

[0056] Basic structure: PCB board energy meter: used to detect energy consumption; energy meter housing: protects the internal PCB board energy meter from the influence of the external environment.

[0057] Guide rail slot: located at the rear of the energy meter housing and compatible with standard DIN rails;

[0058] Limiting device: Limiting block: It is set on the guide rail and consists of multiple non-contact block-shaped protrusions, which play a limiting role; The blocking piece is located on the left and right sides of the end where the guide rail groove contacts the guide rail, made of elastic material, one end is integrally formed with the guide rail groove, and the other end faces the depression formed by the limiting block, and is inclined at a certain angle to the surface of the guide rail groove.

[0059] Working principle:

[0060] Installation process:

[0061] Slide the guide rail groove of the energy meter housing into the guide rail 4.

[0062] The blocking piece in the guide rail groove is compressed due to elasticity until the inclined end of the blocking piece contacts the limiting block.

[0063] When the blocking piece contacts the limit block, the elastic piece returns to its original shape, fixing the electric energy meter in a proper position.

[0064] Fixed state:

[0065] The inclined design of the card block and the cooperation of the limit block prevent the electric energy meter from moving left and right under normal conditions.

[0066] The card holder has a tilt angle of 30°, ensuring a stable fixing effect.

[0067] move:

[0068] When the electric energy meter needs to be moved, the reversing mechanism can be used to change the state of the card blocking piece.

[0069] A reversing mechanism (such as an elastic band and a fixing hook) can be used to change the angle between the blocking piece and the surface of the guide rail groove to be less than 30 degrees, so that the electric energy meter can be easily moved.

[0070] In this way, the energy meter can slide on the guide rail for easy position adjustment or removal.

[0071] Improvements to limit blocks and guide rail grooves

[0072] Improvement of the limit block: the width of the protrusion of the limit block is equal to the distance between the two protrusions, ensuring the stability of the limit block.

[0073] The guide rail groove and the protrusions on the guide rail: The mutually matching design ensures better positioning and fixing effects.

[0074] Summarize

[0075] This utility model, through its unique limiter design, not only simplifies the installation process but also improves the stability and reliability of the energy meter. Furthermore, the adjustable reversing mechanism allows the energy meter to be easily moved or disassembled when necessary, thus meeting the needs of different application scenarios.

Claims

1. A PCB board guide rail electric energy meter, comprising a PCB board electric energy meter (1), wherein the PCB board electric energy meter (1) is used to detect electric energy consumption, wherein an electric energy meter housing (2) is provided on the outside of the PCB board electric energy meter (1), and a guide rail groove (3) is provided at the rear of the electric energy meter housing (2), wherein the guide rail groove (3) is adapted to a guide rail (4), and wherein: A limiting device (5) for limiting the position of the PCB board electric energy meter (1) on the guide rail (4) is provided on the guide rail groove (3) and the guide rail (4); the limiting device (5) is located at the point where the guide rail (4) and the guide rail groove (3) contact each other.

2. A PCB board guide electric energy meter according to claim 1, characterized in that: The limiting device (5) comprises a limiting block (51) and a blocking piece (52), wherein the limiting block (51) is a plurality of block-shaped protrusions on the guide rail (4) at one end in contact with the guide rail groove (3), and the plurality of block-shaped protrusions are not in contact with each other, and the blocking piece (52) is an elastic piece on the left and right sides of the end in contact with the guide rail groove (3) and the guide rail (4), wherein one end of the elastic piece is integrally formed with the guide rail groove (3), and the other end faces a recess formed by the limiting block (51), and the elastic piece is inclined with respect to the surface of the guide rail groove (3).

3. A PCB board guide electric energy meter according to claim 2, characterized in that: The blocking pieces (52) at both ends of the guide rail groove (3) are inclined in opposite directions, with the blocking piece (52) on the left side being inclined towards the left side, and the blocking piece (52) on the right side being inclined towards the right side.

4. A PCB board guide electric energy meter according to claim 3, characterized in that: The included angle between the blocking piece (52) and the surface of the guide rail groove (3) is 30°.

5. The PCB guide rail electric energy meter according to claim 4, characterized in that: The top end of the blocking piece (52) is provided with a reversing mechanism (53), the reversing mechanism (53) being an elastic band, one end of which is fixedly connected to the top end of the blocking piece (52), and the other end of which is provided with a fixing hook. The side wall of the electric energy meter housing (2) is provided with a protrusion, the protrusion being used to fix the fixing hook. When the fixing hook is placed on the protrusion on the side wall of the electric energy meter housing (2), the surface angle between the blocking piece (52) and the guide rail groove (3) is less than 30°.

6. The PCB board guide electric energy meter according to claim 5, characterized in that: The width of the protrusion of the limiting block (51) is equal to the distance between the two protrusions.

7. The PCB board guide electric energy meter according to claim 6, characterized in that: The limiting device (5) is a plurality of parallel protrusions arranged at the contact points between the guide rail (4) and the guide rail groove (3), and the protrusions on the guide rail groove (3) and the guide rail (4) match each other.

8. The PCB board guide electric energy meter according to claim 7, characterized in that: The parallel-arranged protrusions have a cross-section of an isosceles triangle, and the height of the triangle is equal to 2 (square root) 3 times the width of the base of the triangle.

9. The PCB board guide electric energy meter according to claim 8, characterized in that: The cross section of the parallel-arranged protrusions is arc-shaped, and the radian of the arc-shaped protrusions is π / 3 to 2π / 3.

10. The PCB board guide electric energy meter according to claim 9, characterized in that: The plurality of protrusions arranged in parallel are in contact with each other.

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