Electric quantity metering device

Abstract

The utility model provides an electric quantity metering device, which is used for measuring the consumption of electric energy passing through a circuit and comprises a protective shell and a mounting assembly. The protective shell comprises a binding face, a display face opposite to the binding face and a plurality of mounting faces used for connecting the binding face and the display face. The installation assembly comprises a plurality of installation supports, the installation supports are fixedly connected with the protection shell and located on the installation face, and the installation supports take the length midpoint of the protection shell as the first axis and the height midpoint of the protection shell as the second axis. And the plurality of mounting brackets are symmetrically arranged along a first axis and a second axis respectively. And the symmetrically distributed mounting brackets are fixedly connected with the protective shell, so that the stability of the whole structure is enhanced, the measurement result fluctuation caused by unstable mounting is effectively prevented, and the measurement accuracy is ensured.

Description

Technical Field

[0001] The present application relates to the field of electricity metering, and in particular to an electricity metering device. Background Art

[0002] The current status of electricity metering devices is reflected in the significant improvement of technical level and the increasing standardization of systems. Electricity metering devices are developing in the direction of digitalization, intelligence, standardization and systematization to meet the needs of different users and adapt to the development trend of the power industry.

[0003] The electric energy metering device is prone to instability due to poor installation. If the electric energy meter is unstable, that is, its measurement results fluctuate due to external factors, then the measurement results may be inaccurate. Therefore, a power metering device with improved stability is needed. Utility Model Content

[0004] In view of this, it is necessary to provide an electric quantity measuring device with improved stability to solve the above problems.

[0005] An embodiment of the present application provides an electricity metering device for measuring the amount of electric energy consumed by a circuit, comprising a protective shell and a mounting assembly. The protective shell comprises a fitting surface, a display surface arranged opposite to the fitting surface, and a plurality of mounting surfaces for connecting the fitting surface and the display surface. The mounting assembly comprises a plurality of mounting brackets. The mounting bracket is fixedly connected to the protective shell, the mounting bracket is located on the mounting surface, and the plurality of mounting brackets have the midpoint of the length of the protective shell as the first axis and the midpoint of the height of the protective shell as the second axis. The plurality of mounting brackets are symmetrically arranged along the first axis and symmetrically arranged along the second axis, respectively.

[0006] In at least one embodiment of the present application, the mounting bracket includes a mounting member and a connecting member. The mounting member is connected to the protective shell. The mounting member is located outside the protective shell, and a mounting area is formed between the mounting member and the protective shell. The connecting member is connected to the mounting member, and the connecting member is fixedly connected to the protective shell.

[0007] In at least one embodiment of the present application, the mounting member includes a first mounting portion, a second mounting portion, and a third mounting portion. One end of the first mounting portion is connected to the connecting member. The first mounting portion is fitted and connected to the protective shell. The second mounting portion is integrally formed with the first mounting portion. The second mounting portion is connected to the other end of the first mounting portion, and the second mounting portion is arranged in a first direction perpendicular to the first mounting portion and away from the protective shell. The third mounting portion is integrally formed with the second mounting portion, the third mounting portion is connected to one end of the second mounting portion away from the first mounting portion, and the third mounting portion is arranged in a second direction perpendicular to the first direction and away from the second mounting portion.

[0008] In at least one embodiment of the present application, the second mounting portion, the third mounting portion, and the protective case form the mounting area.

[0009] In at least one embodiment of the present application, the mounting member further includes a buffer portion. The buffer portion is adhesively connected to a surface of the third mounting portion close to the protective case, and the buffer portion is adhesively connected to a surface of the second mounting portion facing away from the first mounting portion and close to the third mounting portion. The buffer portion is located in the mounting area.

[0010] In at least one embodiment of the present application, the buffer portion is made of foam.

[0011] In at least one embodiment of the present application, the power metering device further includes a display screen. The display screen is fixedly connected to the protective case, and the display screen is located on the display surface.

[0012] In at least one embodiment of the present application, a plurality of display surfaces are connected to a plurality of mounting brackets one by one.

[0013] In at least one embodiment of the present application, the protective case is a cube.

[0014] In at least one embodiment of the present application, the protective case is a cuboid.

[0015] A power metering device provided above has a plurality of mounting surfaces through the protective case. The mounting assembly includes a plurality of mounting brackets. These brackets are not only firmly connected to the protective case, but also symmetrically arranged with the midpoints of the length and height of the protective case as the symmetry axes, enhancing the stability and balance of the overall structure. Thus, it effectively prevents the measurement result fluctuations caused by unstable installation of the electric energy meter and ensures the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a perspective view of the power metering device of the present application;

[0017] Figure 2 is a schematic diagram of the symmetry of a plurality of the mounting brackets;

[0018] Figure 3 is Figure 1 a partial enlarged view of A-A in

[0019] LIST OF MAIN ELEMENT SYMBOLS

[0020] 100, Electric quantity measuring device; 10, protective case; 11, fitting surface; 12, display surface; 13, mounting surface; 20, mounting component; 21, mounting bracket; 211, mounting piece; 212, connecting piece; 2111, first mounting portion; 2112, second mounting portion; 2113, third mounting portion; 2010, mounting area; 2114, buffer portion; 30, display screen; F1, first direction; F2, second direction. Detailed implementation manners

[0021] Next, embodiments of the present application will be described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments.

[0022] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. The terms "top", "bottom", "upper", "lower", "left", "right", "front", "rear", and similar expressions used herein are only for the purpose of illustration.

[0023] An embodiment of the present application provides an electric quantity measuring device for measuring the electric energy consumption passing through a circuit, including a protective case and a mounting component. The protective case includes a fitting surface, a display surface disposed opposite to the fitting surface, and a plurality of mounting surfaces for connecting the fitting surface and the display surface.

[0024] The mounting component includes a plurality of mounting brackets. The mounting brackets are fixedly connected to the protective case. The mounting brackets are located on the mounting surfaces, and the plurality of mounting brackets are centered on the midpoint of the length of the protective case as the first axis and the midpoint of the height of the protective case as the second axis. The plurality of mounting brackets are symmetrically arranged along the first axis and symmetrically arranged along the second axis respectively.

[0025] The above-provided electric quantity measuring device has multiple mounting surfaces through the protective case, and the mounting component includes multiple mounting brackets. These brackets are not only firmly connected to the protective case, but also symmetrically arranged with the midpoints of the length and height of the protective case as the symmetry axes, enhancing the stability and balance of the overall structure, thereby effectively preventing the measurement result fluctuations caused by the unstable installation of the electric energy meter and ensuring the accuracy of the measurement.

[0026] Next, some embodiments of the present application will be described in detail with reference to the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0027] Please refer to Figures 1-3, an embodiment of the present application provides an electricity metering device 100 for measuring the power consumption of an electric circuit, including a protective case 10 and a mounting assembly 20. The protective case 10 includes a fitting surface 11, a display surface 12 disposed opposite to the fitting surface 11, and a plurality of mounting surfaces 13 for connecting the fitting surface 11 and the display surface 12. The mounting assembly 20 includes a plurality of mounting brackets 21. The mounting brackets 21 are fixedly connected to the protective case 10, the mounting brackets 21 are located on the mounting surfaces 13, and the plurality of mounting brackets 21 are centered on the midpoint of the length of the protective case 10 as the first axis and the midpoint of the height of the protective case 10 as the second axis. The plurality of mounting brackets 21 are symmetrically arranged along the first axis and symmetrically arranged along the second axis.

[0028] Specifically, the fitting surface 11 mainly plays a role of fixing and supporting, ensuring that the electricity metering device 100 can be firmly attached to the mounting surface 13, such as a wall surface, an equipment housing, etc. The fitting surface 11 increases the stability of the device, preventing it from falling off or shifting due to external forces or vibrations during use, and ensuring the accuracy and continuity of electricity metering.

[0029] Furthermore, the display surface 12 is a window for the electricity metering device 100 to interact with users, and is used to display content such as power consumption data and status information. The intuitive display surface 12 enables users to conveniently obtain power consumption information, which helps users with energy management and cost control.

[0030] Still further, the mounting surface 13 is a bridge connecting the fitting surface 11 and the display surface 12, and at the same time provides connection points for the mounting brackets 21, ensuring the structural integrity and stability of the entire device. The design of the plurality of mounting surfaces 13 makes the electricity metering device 100 more flexible and stable during installation, and can adapt to different installation environments and requirements.

[0031] Even further, the mounting bracket 21 is a key component of the electricity metering device 100, which is used to fix the device on the mounting surface 13, ensuring its stability and reliability in various environments. The sturdy mounting bracket 21 can effectively resist external forces, prevent the device from loosening or falling off, and ensure the accuracy of electricity metering.

[0032] The symmetrical arrangement of the mounting brackets 21 makes the device more balanced and stable in structure, reducing the risk of deformation or damage caused by uneven stress. The symmetrical design not only improves the stability of the device, but also makes the installation process simpler and improves the installation efficiency.

[0033] In summary, during the installation process, first determine the installation location, and then attach the fitting surface 11 of the power metering device 100 to the installation surface 13. Next, fix the device to the installation surface 13 through the installation bracket 21, ensuring that the bracket fits tightly and stably with the installation surface 13. Finally, check the stability and display effect of the device. After ensuring that everything is normal, it can be put into use.

[0034] In a specific embodiment, the installation bracket 21 includes an installation member 211 and a connecting member 212. The installation member 211 is connected to the protective shell 10. The installation member 211 is located outside the protective shell 10, and an installation area 2010 is formed between the installation member 211 and the protective shell 10. The connecting member 212 is connected to the installation member 211, and the connecting member 212 is fixedly connected to the protective shell 10.

[0035] Specifically, the connection between the installation member 211 and the protective shell 10 is the basis for the stability of the installation bracket 21, ensuring that the installation member 211 can firmly support the protective shell 10, thereby preventing the entire power metering device 100 from shaking or falling off when subjected to external forces. The stable connection structure ensures the stability and reliability of the power metering device 100 during long-term use, reducing the risk of failures caused by improper installation or loose components.

[0036] Furthermore, the installation member 211 is located outside the protective shell 10 and is used to contact and fix with the external environment (such as walls, brackets, etc.), ensuring that the power metering device 100 can be firmly installed at the predetermined position. The external installation member 211 facilitates the installation and disassembly operations, and can also resist the impact and vibration of the external environment, protecting the internal power metering device 100 from damage.

[0037] Still further, the installation area 2010 formed between the installation member 211 and the protective shell 10 is used to accommodate other components or materials, such as the buffer portion 2114, etc., to enhance the stability and buffering effect of the entire installation structure. The existence of the installation area 2010 enables the power metering device 100 to have a certain degree of flexibility and adaptability during installation, and can adjust the installation structure and the layout of components according to actual needs, improving the installation efficiency and quality.

[0038] Even further, the connection between the connecting member 212 and the installation member 211 is a key link in the entire installation bracket 21 structure, ensuring that the installation member 211 can stably cooperate with the connecting member 212 to jointly support and protect the power metering device 100. The strong connection structure ensures the overall strength and stability of the installation bracket 21, and can resist the impact and vibration of various external forces, ensuring the safe operation of the power metering device 100.

[0039] Furthermore, the fixed connection between the connector 212 and the protective shell 10 is a key step to tightly integrate the mounting bracket 21 with the electricity metering device 100 as a whole, ensuring that the mounting bracket 21 can firmly support and protect the electricity metering device 100. The fixed connection structure enables the electricity metering device 100 to maintain a stable posture and position after installation, and is not easily displaced or deformed due to external forces, thereby ensuring the accuracy and reliability of electricity metering.

[0040] In summary, during the installation process, the mounting member 211 is first fixedly connected to the protective shell 10 through the connecting member 212 to ensure the stability of the mounting bracket 21. Then, the position and angle of the mounting member 211 are adjusted according to actual needs so that it can be closely contacted and fixed with the external environment (such as a wall, bracket, etc.). Finally, the entire electricity metering device 100 is firmly installed in a predetermined position through the mounting bracket 21 to ensure that it can operate stably and reliably.

[0041] In a specific implementation example, the mounting member 211 includes a first mounting portion 2111, a second mounting portion 2112, and a third mounting portion 2113. One end of the first mounting portion 2111 is connected to the connecting member 212. The first mounting portion 2111 is fitted and connected to the protective shell 10. The second mounting portion 2112 is integrally formed with the first mounting portion 2111. The second mounting portion 2112 is connected to the other end of the first mounting portion 2111, and the second mounting portion 2112 is arranged along a first direction F1 perpendicular to the first mounting portion 2111 and away from the protective shell 10. The third mounting portion 2113 is integrally formed with the second mounting portion 2112, the third mounting portion 2113 is connected to one end of the second mounting portion 2112 away from the first mounting portion 2111, and the third mounting portion 2113 is arranged along a second direction F2 perpendicular to the first direction F1 and away from the second mounting portion 2112.

[0042] Specifically, as a bridge between the mounting member 211 and the connecting member 212, the first mounting portion 2111 ensures that the mounting member 211 can be firmly connected to the connecting member 212, forming a stable support structure. The first mounting portion 2111 is adhesively connected to the protective case 10, enhancing the connection strength between the mounting member 211 and the protective case 10 and improving the stability of the entire mounting structure. Since the first mounting portion 2111 is tightly connected to both the connecting member 212 and the protective case 10, the structure of the entire mounting bracket 21 is more stable and not prone to loosening or falling off. The adhesive connection method can reduce structural deformation caused by vibration or external forces, thus ensuring the stable operation of the power metering device 100. During the installation process, first connect one end of the first mounting portion 2111 to the connecting member 212 to ensure a firm connection; then adhesively connect the other end of the first mounting portion 2111 to the protective case 10 to ensure a tight fit between the mounting member 211 and the protective case 10.

[0043] Furthermore, as an extension of the mounting member 211, the second mounting portion 2112 provides an additional support area, enhancing the overall stability of the mounting member 211. The setting direction of the second mounting portion 2112 helps to accurately position during installation, ensuring the correct fit between the mounting member 211 and the mounting surface 13.

[0044] Still further, the integrally formed structure makes the connection between the second mounting portion 2112 and the first mounting portion 2111 more secure and not prone to breakage or detachment. By increasing the support area and positioning function, the stability and accuracy of the mounting member 211 during the installation process are improved. During the installation process, the second mounting portion 2112, as the support part of the mounting member 211, contacts and supports the mounting surface 13. By adjusting the position and angle of the second mounting portion 2112, it can be ensured that the mounting member 211 is tightly fitted to the mounting surface 13 and correctly installed.

[0045] The setting of the third mounting portion 2113 further increases the support area of the mounting member 211, thereby enhancing the stability of the entire mounting structure. A certain buffer space can be formed between the third mounting portion 2113 and the mounting surface 13, reducing the impact on the power metering device 100 caused by vibration or shock. By adding the third mounting portion 2113, the support capacity of the mounting member 211 is further improved, making the entire mounting structure more stable and reliable. The existence of the buffer space can effectively reduce the interference of the external environment on the power metering device 100 and ensure its stable operation.

[0046] Even further, during the installation process, the third mounting portion 2113 contacts the mounting surface 13, forming a stable support structure. At the same time, the space between the third mounting portion 2113 and the second mounting portion 2112 can absorb part of the vibration and shock, protecting the power metering device 100 from damage.

[0047] In a specific embodiment, the second mounting portion 2112, the third mounting portion 2113 and the protective case 10 form the mounting area 2010.

[0048] Specifically, the second mounting portion 2112 is integrally formed with the first mounting portion 2111 and is arranged in a first direction F1 perpendicular to the first mounting portion 2111 and away from the protective case 10; the third mounting portion 2113 is integrally formed with the second mounting portion 2112 and is arranged in a second direction F2 perpendicular to the first direction F1 and away from the second mounting portion 2112. A specific space, namely the mounting area 2010, is jointly formed among these three components and the protective case 10.

[0049] Furthermore, the formation of the mounting area 2010 creates a clear area between the mounting bracket 21 and the protective case 10, which can be used to place other components or perform other necessary installation operations, improving the space utilization rate.

[0050] Still further, through the pre-formed mounting area 2010, installers can more conveniently install other components or assemblies onto the power metering device 100, reducing the adjustment and positioning work during installation and improving the installation efficiency. The existence of the mounting area 2010 helps to disperse the stress between it and the protective case 10, enhancing the structural stability of the entire power metering device 100 and reducing the risk of deformation or damage caused by external forces. Inside the mounting area 2010, some maintenance tools or spare parts can be conveniently placed, facilitating subsequent maintenance and replacement work.

[0051] Even further, during the installation process, the mounting member 211 is first connected to the protective case 10 and fixed outside the protective case 10. With the arrangement of the second mounting portion 2112 and the third mounting portion 2113, a space, namely the mounting area 2010, is naturally formed between them and the protective case 10. Other components or assemblies to be installed can then be placed inside this mounting area 2010 or necessary connections and fixations can be made through the mounting area 2010.

[0052] In a specific embodiment, the mounting member 211 further includes a buffer portion 2114. The buffer portion 2114 is adhesively connected to a surface of the third mounting portion 2113 close to the protective case 10, and the buffer portion 2114 is adhesively connected to a surface of the second mounting portion 2112 away from the first mounting portion 2111 and close to the third mounting portion 2113. The buffer portion 2114 is located in the mounting area 2010.

[0053] Specifically, the introduction of the buffer part 2114 significantly improves the anti-vibration performance of the power metering device 100. When the device is subjected to external vibration or impact, the buffer part 2114 can effectively absorb and disperse these forces, thereby protecting the internal electronic components from damage.

[0054] Furthermore, since the buffer part 2114 can reduce the impact of external vibration on the device, the service life of the power metering device 100 can be extended, and the number of failures and repairs caused by vibration can be reduced. The presence of the buffer part 2114 makes the entire installation structure more stable, and even in complex or harsh environments, the power metering device 100 can maintain stable operation. By reducing vibration and noise, the buffer part 2114 can also improve the user experience, making the power metering device 100 work more quietly and smoothly.

[0055] Furthermore, when the power metering device 100 is subjected to external vibration or impact, these forces first act on the buffer part 2114. The buffer part 2114 absorbs and disperses these forces through the elasticity and shock absorption performance of its material. At the same time, since the buffer part 2114 is closely attached to the third installation part 2113 and the second installation part 2112, it can also transfer part of the force to these installation parts, further dispersing and reducing the impact on the protective shell 10 and internal components.

[0056] In a specific embodiment, the buffer part 2114 is made of foam.

[0057] Specifically, the foam buffer part 2114 can significantly enhance the anti-vibration performance of the power metering device 100, enabling it to maintain stable operation when subjected to vibration or impact, and reducing failures and damages caused by vibration.

[0058] Furthermore, by reducing the impact of vibration and shock on the internal components of the device, the foam buffer part 2114 helps to extend the service life of the power metering device 100 and reduce maintenance and replacement costs. The foam buffer part 2114 can reduce the noise generated by the device during vibration, improve the user experience, and make it operate more quietly and smoothly. Foam materials usually have good recyclability and environmental friendliness, meeting the current development trend of green and low-carbon.

[0059] Furthermore, when the power metering device 100 is subjected to external vibration or impact, the foam buffer part 2114 first comes into contact with these forces. Due to the elasticity and compressibility of the foam material, it will deform under the action of external forces, absorbing and dispersing the impact energy. At the same time, the foam buffer part 2114 is closely attached to other parts of the mounting member 211 (such as the second installation part 2112 and the third installation part 2113), forming an integral buffer structure, further enhancing its ability to absorb and disperse impact forces.

[0060] In a specific embodiment, the power metering device 100 further includes a display screen 30, which is fixedly connected to the protective case 10, and the display screen 30 is located on the display surface 12.

[0061] Specifically, the main function of the display screen 30 is to display the power consumption measured by the power metering device 100, as well as other relevant information, such as time, voltage, current, etc. Through intuitive numbers or graphics, users can conveniently obtain the required information.

[0062] Furthermore, as an interaction interface between the power metering device 100 and users, the display screen 30 can realize interactive operations between users and the device, such as setting parameters, viewing historical data, etc. By displaying the power consumption and other relevant information on the display screen 30, users can more intuitively understand the power consumption situation, which is convenient for power consumption management and energy-saving control. At the same time, the user interaction function also improves the convenience and comfort of user operations.

[0063] The addition of the display screen 30 makes the power metering device 100 not only a simple measurement tool, but also has more information display and user interaction functions, enhancing the comprehensive performance of the device.

[0064] Furthermore, when the power metering device 100 measures the power consumption in the circuit, it will transmit relevant information to the display screen 30. After receiving the information, the display screen 30 will perform corresponding display processing, and display parameters such as power consumption, voltage, and current to users in the form of numbers or graphics. Users can perform operations such as parameter setting and data viewing through the operation interface on the display screen 30. The power metering device 100 will receive the input instructions from users and perform corresponding processing or feedback according to the instructions.

[0065] In a specific embodiment, multiple display surfaces 12 are connected to multiple mounting brackets 21 one by one.

[0066] Specifically, by connecting multiple display surfaces 12 to multiple mounting brackets 21 one by one, the structure of the power metering device 100 can be made more stable, reducing structural looseness or deformation caused by vibration or impact.

[0067] Furthermore, the one-by-one connection design enables each display surface 12 to have a corresponding mounting bracket 21, which greatly simplifies the installation process and improves the installation efficiency. Due to the one-to-one connection between the display surface 12 and the mounting bracket 21, the position of the display surface 12 is fixed, which ensures that users can accurately and conveniently view the display content during use.

[0068] Furthermore, the enhanced structural stability makes the power metering device 100 less likely to be damaged during long-term use, improving the durability of the device. The fixation of the display surface 12 and the enhanced installation convenience enable users to obtain the required information more conveniently and quickly when using the power metering device 100, thus optimizing the user experience.

[0069] In a specific embodiment, the protective case 10 is a cube.

[0070] Specifically, the cube-shaped protective case 10 has a stable geometric structure, and its six faces are all squares, which enables the protective case 10 to have uniform stress-bearing capacity in all directions, thereby improving the structural stability of the entire power metering device 100.

[0071] Furthermore, the cube-shaped protective case 10 can maximize the use of the installation space. Especially when installing the power metering device 100 in a limited space, the cube-shaped protective case 10 can ensure that the device is compact and does not occupy too much space. And it is relatively simple in the manufacturing process because all the faces are squares, which reduces the production difficulty and cost and improves the production efficiency.

[0072] In a specific embodiment, the protective case 10 is a cuboid.

[0073] Specifically, due to the structural stability of the cuboid protective case 10, the power metering device 100 can better resist deformation and damage when subjected to external forces such as vibration and impact, extending the service life of the device.

[0074] Furthermore, the cuboid-shaped protective case 10 makes the power metering device 100 more aesthetically pleasing visually. At the same time, the compact design also facilitates the installation and use by users, enhancing the user experience.

[0075] Furthermore, the cuboid-shaped protective case 10 can adapt to different installation environments and requirements. Whether in the home, commercial or industrial fields, it can exhibit its stable and practical characteristics.

[0076] Thereby, the provided power metering device 100 has multiple mounting surfaces 13 through the protective case 10. The mounting assembly 20 includes multiple mounting brackets 21. These brackets are not only firmly connected to the protective case 10 but also symmetrically arranged with the midpoints of the length and height of the protective case 10 as the symmetry axes, enhancing the overall structural stability and balance, thereby effectively preventing the measurement result fluctuations caused by the unstable installation of the electric energy meter and ensuring the measurement accuracy.

[0077] The above are only the embodiments of the present application. It should be noted here that for those of ordinary skill in the art, improvements can be made without departing from the creative concept of the present application, but these all fall within the protection scope of the present application.

Claims

1. An electric power metering device for measuring the amount of electric energy consumed by a circuit, characterized in that: include: A protective shell, comprising a fitting surface, a display surface arranged opposite to the fitting surface, and a plurality of mounting surfaces for connecting the fitting surface and the display surface; The mounting assembly includes a plurality of mounting brackets, which are fixedly connected to the protective shell and located on the mounting surface. The plurality of mounting brackets have the midpoint of the length of the protective shell as the first axis and the midpoint of the height of the protective shell as the second axis. The plurality of mounting brackets are symmetrically arranged along the first axis and symmetrically arranged along the second axis.

2. The electric quantity measuring device according to claim 1, characterized in that: The mounting bracket comprises: A mounting member connected to the protective shell and located outside the protective shell, with a mounting area formed between the mounting member and the protective shell; A connecting piece is connected to the mounting piece and fixedly connected to the protective shell.

3. The electric quantity measuring device according to claim 2, characterized in that: The mounting member comprises: A first mounting portion, one end of which is connected to the connecting member and is fittedly connected to the protective shell; A second mounting portion is integrally formed with the first mounting portion, connected to the other end of the first mounting portion, and arranged along a first direction perpendicular to the first mounting portion and away from the protective shell; The third mounting portion is integrally formed with the second mounting portion, connected to an end of the second mounting portion away from the first mounting portion, and arranged along a second direction perpendicular to the first direction and away from the second mounting portion.

4. The electric quantity measuring device according to claim 3, characterized in that: The second mounting portion, the third mounting portion and the protective shell form the mounting area.

5. The electric quantity measuring device according to claim 4, characterized in that: The mounting member further includes a buffer portion, which is fitted and connected to a surface of the third mounting portion close to the protective shell, and is fitted and connected to a surface of the second mounting portion facing away from the first mounting portion and close to the third mounting portion, and the buffer portion is located in the mounting area.

6. The electric quantity measuring device according to claim 5, characterized in that: The buffer part is made of foam.

7. The electric quantity measuring device according to claim 1, characterized in that: The electricity metering device further comprises a display screen, which is fixedly connected to the protective shell and is located on the display surface.

8. The electric quantity measuring device according to claim 1, characterized in that: The multiple display surfaces are connected one by one to the multiple mounting brackets.

9. The electric quantity measuring device according to claim 1, characterized in that: The protective shell is a cube.

10. The electric quantity measuring device according to claim 1, characterized in that: The protective shell is a rectangular parallelepiped.

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