Electric energy meter
By setting a snap-fit structure on the meter cover and the transparent cover, a stable snap-fit connection is achieved, which solves the problem of complex connection between the transparent cover and the meter cover, improves assembly efficiency and safety, and reduces the risk of accidents.
Patent Information
- Application Number
- CN202520372464.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-04
AI Technical Summary
In existing electricity meters, the connection between the transparent cover and the meter cover is complicated, the assembly efficiency is low, it is difficult to meet the requirements of electrical clearance and creepage distance, and there is a risk of leakage and electric shock accidents.
The connection method adopts a snap-fit fixing method. By setting a snap-fit structure on the protrusion of the cover and a corresponding snap-fit structure on the transparent cover, a stable connection between the transparent cover and the cover is achieved, which meets the requirements of electrical clearance and creepage distance.
It improves the assembly efficiency of electricity meters, reduces the possibility of the transparent cover loosening or falling off, reduces the risk of leakage and electric shock accidents, and lowers production costs.
Smart Images
Figure CN223897524U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electricity meter technology, specifically to an electricity meter. Background Technology
[0002] An electricity meter typically includes a connected cover and a bottom case. The cover usually has a display area and an indicator light area to display and indicate the working status of the electricity meter. The cover also has a transparent cover that covers the aforementioned areas, providing protection without obstructing them.
[0003] In order for electricity meters to meet the requirements of anti-static properties, and to take into account the requirements of electrical clearance and creepage distance inside and outside the meter cover, a stable connection between the transparent sheet and the meter cover is required. Most existing electricity meters use ultrasonic welding to connect the transparent sheet and the meter cover, but this method is complicated and has low assembly efficiency.
[0004] Therefore, there is an urgent need to propose an electricity meter to solve the problems in the existing technology. Utility Model Content
[0005] The purpose of this application is to provide an electricity meter that simplifies the connection between the meter cover and the transparent cover, thereby improving the assembly efficiency of the electricity meter.
[0006] This application provides an electricity meter, including a meter cover and a transparent cover. The meter cover includes a protrusion, which includes a first sidewall and a second sidewall facing away from each other. A first snap-fit structure is provided on the first sidewall, and a second snap-fit structure is provided on the second sidewall. The transparent cover includes an integrally formed main cover plate, a first side plate, and a second side plate. The first and second side plates are disposed opposite each other on both sides of the main cover plate. A third snap-fit structure is provided on the first side plate, and a fourth snap-fit structure is provided on the second side plate. The transparent cover is disposed over the protrusion, and the main cover plate at least partially abuts the top surface of the protrusion. The first snap-fit structure snaps into the third snap-fit structure, and the second snap-fit structure snaps into the fourth snap-fit structure.
[0007] By incorporating a first and second snap-fit structure on the protruding portion of the meter cover, and corresponding third and fourth snap-fit structures on the transparent cover, the transparent cover can be securely attached to the meter cover using a snap-fit connection method. This snap-fit connection method offers high stability, effectively reducing the possibility of the transparent cover loosening or detaching from the meter cover. It ensures a tight fit between the transparent cover and the meter cover, meeting the electrical clearance and creepage distance requirements of the electricity meter at the meter cover, and reducing the possibility of leakage and electric shock accidents. Simultaneously, this assembly method improves assembly efficiency and reduces production costs while ensuring assembly stability.
[0008] In some examples, the first snap-fit structure is located on the side of the first sidewall away from the top surface, the second snap-fit structure is located on the side of the second sidewall away from the top surface, the third snap-fit structure is located on the side of the first sideplate away from the main cover plate, and the fourth snap-fit structure is located on the side of the second sideplate away from the main cover plate.
[0009] This configuration increases the fit length between the first side plate and the first side wall, as well as the fit length between the second side plate and the second side wall, allowing the transparent cover to cover a larger area of the protrusion. This enhances the assembly stability of the transparent cover on the protrusion and increases the creepage distance between the inside and outside of the protrusion, thereby improving the anti-static performance of the electricity meter.
[0010] In some examples, the first and second snap-fit structures are configured as snap-fit slots, and the third and fourth snap-fit structures are configured as snap-fit bosses corresponding to the snap-fit slots; or, the first and second snap-fit structures are configured as snap-fit bosses, and the third and fourth snap-fit structures are configured as snap-fit slots corresponding to the snap-fit bosses.
[0011] The snap-fit design using snap-fit grooves and snap-fit bosses features a simple structure, ease of production and processing, simple and easy connection process, and stable connection. Furthermore, the snap-fit grooves and snap-fit bosses can be interchanged on the protrusions and transparent covers, making it highly practical.
[0012] In some examples, a first limiting structure is provided on the protrusion, and a second limiting structure is provided on the transparent cover, with the first limiting structure and the second limiting structure being connected for limiting.
[0013] The first and second limiting structures can limit movement during assembly and restrict the shaking of the transparent cover on the protrusion after assembly, further improving the accuracy and stability of the assembly between the transparent cover and the protrusion.
[0014] In some examples, the first limiting structure includes a first limiting groove and a second limiting groove spaced apart, and the second limiting structure includes a first limiting boss and a second limiting boss, with the first limiting boss correspondingly connected to the first limiting groove and the second limiting boss correspondingly connected to the second limiting groove.
[0015] The first and second limiting structures are both set as two parts, with the first limiting groove connected to the first limiting boss and the second limiting groove connected to the second limiting boss. This design features a simple structure and is easy to assemble. It can also effectively limit the installation position of the transparent cover, which helps to improve assembly accuracy and further reduce the possibility of the transparent cover shaking on the protrusion, thereby reducing the risk of the transparent cover detaching from the watch cover.
[0016] In some examples, the first limiting groove and the second limiting groove are disposed opposite to each other on the two sides of the top surface, and the first limiting boss and the second limiting boss are disposed opposite to each other on the two sides of the main cover plate.
[0017] This configuration can reduce the impact of the first and second limiting grooves on the top surface structure while achieving the limiting function. Similarly, it can reduce the impact of the first and second limiting bosses on the main cover plate structure, thereby reducing the impact on the tightness between the main cover plate and the top surface and the electrical clearance.
[0018] In some examples, the first limiting groove and the second limiting groove both extend to the first sidewall and the second sidewall, and the first limiting boss and the second limiting boss extend to the first sideplate and the second sideplate.
[0019] This configuration extends the fit length between the first limiting groove and the first limiting boss, as well as the fit length between the second limiting groove and the second limiting boss, which helps to further improve the tightness of the fit between the transparent cover and the protrusion.
[0020] In some examples, the electricity meter also includes a first flip cover and a second flip cover, both of which are rotatably connected to the meter cover. The first flip cover is located on the side of the first side plate opposite to the second side plate, and the first flip cover part abuts against the first side plate. The second flip cover is located on the side of the second side plate opposite to the first side plate, and the second flip cover part abuts against the second side plate.
[0021] By having the first flip cover abut against the first side panel, the first side panel can be brought closer to the first side wall, thereby making the engagement between the first and third snap-fit structures more stable and preventing them from detaching. The same principle applies to the second flip cover abutting against the second side panel, and will not be elaborated further here.
[0022] In some examples, the snap-fit boss includes an abutment surface and a guide surface, with the abutment surface located on the side of the snap-fit boss facing the main cover and the guide surface located on the side of the snap-fit boss away from the main cover.
[0023] The abutting surface of the snap-fit boss is used to abut against the wall of the snap-fit groove to achieve the snap-fit function, while the guide surface is set to facilitate the sliding of the transparent cover along the side wall of the protrusion during the assembly process, thereby facilitating assembly.
[0024] In some examples, at least one first snap-fit structure is provided at intervals on the first sidewall, at least one second snap-fit structure is provided at intervals on the second sidewall, at least one third snap-fit structure is provided on the first side plate, and at least one fourth snap-fit structure is provided on the second side plate. The third snap-fit structure corresponds one-to-one with the first snap-fit structure, and the fourth snap-fit structure corresponds one-to-one with the second snap-fit structure.
[0025] Setting up one or more first snap-fit structures and one or more corresponding third snap-fit structures can reduce the shaking of the transparent cover on the protrusion and effectively reduce the risk of the transparent cover detaching from the protrusion. The same applies to the second side wall and the second side plate, which can make the assembly stability of the watch cover and the transparent cover higher. Attached Figure Description
[0026] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0027] Figure 1 This is a schematic diagram of the overall structure of the electricity meter provided in the embodiments of this application.
[0028] Figure 2 This is a first-view exploded view of the cover and transparent cover provided in the embodiments of this application.
[0029] Figure 3 This is a second-view exploded view of the cover and transparent cover provided in the embodiments of this application.
[0030] Figure 4 This is a schematic diagram of the structure of the transparent cover provided in an embodiment of this application.
[0031] Figure 5 This is a schematic diagram of the limiting fit structure between the transparent cover and the watch cover provided in the embodiments of this application.
[0032] Figure 6 Provided for the embodiments of this application Figure 5 Enlarged view of point A in the middle.
[0033] Explanation of reference numerals in the attached figures:
[0034] 100. Electricity meter; 1. Meter cover; 11. Protrusion; 111. First side wall; 112. Second side wall; 1111. First snap-fit structure; 1121. Second snap-fit structure; 113. Top surface; 114. First limiting structure; 115. Third side wall; 116. Fourth side wall; 2. Transparent cover; 21. Main cover plate; 22. First side plate; 221. Third snap-fit structure; 23. Second side plate; 231. Fourth snap-fit structure; 24. Second limiting structure; 25. Abutment surface; 26. Guide surface; 3. First flip cover; 4. Second flip cover. Detailed Implementation
[0035] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0036] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0037] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0038] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0039] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0040] Common rail-mounted energy meters typically include a cover and a bottom case. The cover has sections to avoid obstructing the display area and indicator lights. To prevent these display sections from being blocked, existing rail-mounted energy meters have transparent covers on their covers, which both prevent obstruction and provide protection.
[0041] In the assembly of the watch cover and the transparent cover, in order to meet the requirements of electrical clearance and creepage distance between the inside and outside of the watch cover, as well as to meet the electrostatic discharge test standards, the watch cover and the transparent cover need to maintain a fixed and tight connection. Most existing technologies use ultrasonic welding for connection. However, this method not only has problems such as incomplete welding or desoldering, but also has problems such as complicated process, high cost and low assembly efficiency.
[0042] Based on this, this application provides an energy meter that simplifies the connection between the meter cover and the transparent cover, thereby improving the assembly efficiency of the energy meter.
[0043] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.
[0044] Please refer to Figures 1 to 3 This embodiment provides an electricity meter 100, including a meter cover 1 and a transparent cover 2. The meter cover 1 includes a protrusion 11, and the protrusion 11 includes a first sidewall 111 and a second sidewall 112 facing away from each other. A first snap-fit structure 1111 is provided on the first sidewall 111, and a second snap-fit structure 1121 is provided on the second sidewall 112.
[0045] The transparent cover 2 includes an integrally formed main cover plate 21, a first side plate 22 and a second side plate 23. The first side plate 22 and the second side plate 23 are disposed opposite to each other on both sides of the main cover plate 21. A third snap-fit structure 221 is provided on the first side plate 22 and a fourth snap-fit structure 231 is provided on the second side plate 23.
[0046] The transparent cover 2 is provided on the protrusion 11, and the main cover plate 21 is at least partially attached to the top surface 113 of the protrusion 11. The first snap-fit structure 1111 is snapped with the third snap-fit structure 221, and the second snap-fit structure 1121 is snapped with the fourth snap-fit structure 231.
[0047] By providing a first snap-fit structure 1111 and a second snap-fit structure 1121 on the protrusion 11 of the watch cover 1, and providing corresponding third snap-fit structures 221 and fourth snap-fit structures 231 on the transparent cover 2, the transparent cover 2 can be fixedly assembled with the watch cover 1 by snap-fit connection.
[0048] The snap-fit connection provides high stability and effectively reduces the possibility of the transparent cover 2 loosening or falling off the cover 1, ensuring a tight fit between the transparent cover 2 and the cover 1. This meets the electrical clearance and creepage distance requirements of the electricity meter 100 at the cover 1, reducing the possibility of leakage and electric shock accidents. Furthermore, this assembly method ensures assembly stability while improving assembly efficiency and reducing production costs.
[0049] Specifically, refer to Figure 1The electricity meter 100 includes a meter cover 1 and a bottom shell connected together. The protrusion 11 provided on the meter cover 1 has a receiving cavity on the side facing the bottom shell. The display component and indicator light component of the electricity meter 100 are usually installed in the receiving cavity and have a clearance hole provided on the top surface 113 of the protrusion 11 to display the working status of the electricity meter 100 to the user.
[0050] The protrusion 11 is located in the middle of the cover 1. The upper side wall of the protrusion 11 is the first side wall 111, and the lower side wall of the protrusion 11 is the second side wall 112. The first side wall 111 and the second side wall 112 are two opposite side walls on the protrusion 11.
[0051] Reference Figure 2 and Figure 3 The transparent cover 2 includes a main cover plate 21 and a first side plate 22 and a second side plate 23 disposed opposite to each other on both sides of the main cover plate 21. The first side plate 22 and the second side plate 23 are both set at an angle to the main cover plate 21 to form a semi-enclosed structure.
[0052] The transparent cover 2 is assembled onto the cover 1 by covering the protrusion 11. The first side plate 22 of the transparent cover 2 is parallel and close to the first side wall 111, the second side plate 23 is parallel and close to the second side wall 112, and the main cover plate 21 is parallel and close to the top surface 113 of the protrusion 11. In this way, the transparent cover 2 can cover part of the protrusion 11, which is convenient for assembly and can reduce the possibility of leakage and electric shock accidents on the protrusion 11 without affecting the display function.
[0053] The third snap-fit structure 221 is located on the side of the first side plate 22 facing the second side plate 23, and the fourth snap-fit structure 231 is located on the side of the second side plate 23 facing the first side plate 22. This means that both the third snap-fit structure 221 and the fourth snap-fit structure 231 are located inside the transparent cover 2. When the transparent cover 2 covers the protrusion 11, the first side plate 22 and the first side wall 111 move relative to each other until the first snap-fit structure 1111 snaps into the third snap-fit structure 221. The second side plate 23 and the second side wall 112 move relative to each other until the second snap-fit structure 1121 snaps into the fourth snap-fit structure 231. This completes the fixed assembly of the transparent cover 2 and the watch cover 1, which has the characteristics of simple operation and high efficiency.
[0054] In this embodiment, the first sidewall 111 and the second sidewall 112 are both perpendicular to the top surface 113. Correspondingly, the first side plate 22 and the second side plate 23 are both perpendicular to the main cover plate 21. After the above-mentioned snap-fit assembly is completed, this structure can use the first sidewall 111 and the second sidewall 112 to restrict the shaking of the transparent cover 2 in the vertical direction, which is beneficial to improving the assembly stability.
[0055] In addition, after the transparent cover 2 is assembled to the protrusion 11, the main cover plate 21 can be partially or completely attached to the top surface 113. This allows the main cover plate 21 and the top surface 113 to maintain a tight fit, meeting the electrical clearance and creepage distance requirements of the electricity meter 100 at this location. This helps to reduce the risk of leakage or electric shock accidents caused by a large gap between the main cover plate 21 and the top surface 113.
[0056] In some examples, refer to Figure 2 and Figure 3 The first snap-fit structure 1111 is located on the side of the first side wall 111 away from the top surface 113, the second snap-fit structure 1121 is located on the side of the second side wall 112 away from the top surface 113, the third snap-fit structure 221 is located on the side of the first side plate 22 away from the main cover plate 21, and the fourth snap-fit structure 231 is located on the side of the second side plate 23 away from the main cover plate 21.
[0057] This arrangement increases the fit length between the first side plate 22 and the first side wall 111, as well as the fit length between the second side plate 23 and the second side wall 112, allowing the transparent cover 2 to cover a larger area of the protrusion 11. This enhances the assembly stability of the transparent cover 2 on the protrusion 11 and increases the creepage distance between the inside and outside of the protrusion 11, thereby improving the anti-static performance of the power meter 100.
[0058] In this embodiment, the width of the first side plate 22 is the same as the width of the first side wall 111, and the width of the second side plate 23 is the same as the width of the second side wall 112.
[0059] Reference Figure 2 The first snap-fit structure 1111 is located on the side of the first side wall 111 away from the top surface 113 of the protrusion 11, and the third snap-fit structure 221 is located on the side of the first side plate 22 away from the main cover plate 21. In this way, during the assembly process, the first side plate 22 needs to be moved along the first side wall 111 to the bottom end of the protrusion 11, and then the first side plate 22 is fixed to the bottom end of the first side wall 111 by the snap-fit of the first snap-fit structure 1111 and the third snap-fit structure 221, so that the first side plate 22 completely covers the first side wall 111.
[0060] Reference Figure 3 The second snap-fit structure 1121 is located on the side of the second side wall 112 away from the top surface 113 of the protrusion 11, and the fourth snap-fit structure 231 is located on the side of the second side plate 23 away from the main cover plate 21. In this way, during the assembly process, the second side plate 23 needs to be moved along the second side wall 112 to the bottom end of the protrusion 11, and then the second side plate 23 is fixed to the bottom end of the second side wall 112 by the snap-fit of the second snap-fit structure 1121 and the fourth snap-fit structure 231, so that the second side plate 23 completely covers the second side wall 112.
[0061] By combining the cooperation between the first side plate 22 and the first side wall 111, the transparent cover 2 can completely cover the protrusion 11, which has the characteristics of simple assembly operation, high efficiency, good stability, and meets the electrical clearance requirements of the protrusion 11.
[0062] In some examples, refer to Figure 2 and Figure 3 The first snap-fit structure 1111 and the second snap-fit structure 1121 are configured as snap-fit slots, and the third snap-fit structure 221 and the fourth snap-fit structure 231 are configured as snap-fit bosses corresponding to the snap-fit slots. In some examples, the first snap-fit structure 1111 and the second snap-fit structure 1121 are configured as snap-fit bosses, and the third snap-fit structure 221 and the fourth snap-fit structure 231 are configured as snap-fit slots corresponding to the snap-fit bosses.
[0063] The snap-fit design using snap-fit grooves and snap-fit bosses features simple structure, easy production and processing, simple and easy connection process, and stable connection. Furthermore, the snap-fit grooves and snap-fit bosses can be interchanged on the protrusion 11 and the transparent cover 2, making it highly practical.
[0064] In this embodiment, both the first sidewall 111 and the second sidewall 112 are provided with snap-fit grooves, and both the first sideplate 22 and the second sideplate 23 are provided with snap-fit protrusions. The positions of the snap-fit grooves correspond to the positions of the snap-fit protrusions. When assembling the transparent cover 2, the first sideplate 22 moves along the first sidewall 111, and the second sideplate 23 moves along the second sidewall 112 until the snap-fit protrusion on the first sideplate 22 snaps into the snap-fit groove on the first sidewall 111, and the snap-fit protrusion on the second sideplate 23 snaps into the snap-fit groove on the second sidewall 112, thereby achieving the fixed assembly of the transparent cover 2.
[0065] Of course, the snap-fit grooves on the first sidewall 111 and the second sidewall 112 can also be replaced with snap-fit bosses, and correspondingly, the snap-fit bosses on the first sideplate 22 and the second sideplate 23 can be replaced with snap-fit grooves, which can also achieve fixed assembly. In addition, snap-fit bosses and snap-fit grooves can be provided on both the first sidewall 111 and the second sidewall 112, and snap-fit grooves and snap-fit bosses can be provided on the first sideplate 22 and the second sideplate 23 respectively. This dual-structure snap-fit method provides higher stability.
[0066] In some examples, refer to Figure 2 and Figure 3 The protrusion 11 is also provided with a first limiting structure 114, and the transparent cover 2 is also provided with a second limiting structure 24. The first limiting structure 114 and the second limiting structure 24 are connected in a limiting manner.
[0067] The first limiting structure 114 and the second limiting structure 24 can play a limiting role during the assembly process, and can also limit the shaking of the transparent cover 2 on the protrusion 11 after the assembly is completed, thereby further improving the assembly accuracy and stability between the transparent cover 2 and the protrusion 11.
[0068] The first limiting structure 114 and the second limiting structure 24 can be configured as limiting blocks, limiting grooves, limiting bosses, or limiting holes, etc. For example, the first limiting structure 114 can be configured as a guide rail, and the second limiting structure 24 can be configured as a limiting boss. During the assembly of the transparent cover 2 to the protrusion 11, the limiting boss can cooperate with the guide rail and move along the guide rail to make the transparent cover 2 completely cover the protrusion 11.
[0069] In some examples, refer to Figures 2 to 4 The first limiting structure 114 includes a first limiting groove and a second limiting groove that are spaced apart. The second limiting structure 24 includes a first limiting boss and a second limiting boss. The first limiting boss is connected to the first limiting groove, and the second limiting boss is connected to the second limiting groove.
[0070] The first limiting structure 114 and the second limiting structure 24 are both set as two parts. The first limiting groove is connected to the first limiting boss, and the second limiting groove is connected to the second limiting boss. This has the characteristics of simple structure and easy assembly. It can also effectively limit the installation position of the transparent cover 2, which is conducive to improving the assembly accuracy and further reducing the possibility of the transparent cover 2 shaking on the protrusion 11, thereby reducing the risk of the transparent cover 2 detaching from the cover 1.
[0071] The first limiting groove and the second limiting groove can be formed on the top surface 113 of the protrusion 11, or they can be formed on the first side wall 111 or the second side wall 112. Correspondingly, the first limiting boss and the second limiting boss can be set on the main cover plate 21, the first side plate 22 or the second side plate 23.
[0072] The first and second limiting grooves can be arranged parallel to each other in the same plane or perpendicular to each other in the same plane, and the arrangement of the first and second limiting bosses corresponds accordingly. When arranged parallelly, the transparent cover 2 can be restricted from swaying in two directions, and when arranged perpendicularly, the transparent cover 2 can be restricted from swaying in four directions, resulting in higher accuracy and stability.
[0073] Reference Figures 2 to 5 In some examples, the first limiting groove and the second limiting groove are disposed opposite to each other on the two sides of the top surface 113, and the first limiting boss and the second limiting boss are disposed opposite to each other on the two sides of the main cover plate 21.
[0074] This configuration can reduce the impact of the first and second limiting grooves on the top surface 113 structure while achieving the limiting function. Similarly, it can reduce the impact of the first and second limiting bosses on the main cover plate 21 structure, thereby reducing the impact on the tightness and electrical clearance between the main cover plate 21 and the top surface 113.
[0075] Specifically, the protrusion 11 also includes a third sidewall 115 and a fourth sidewall 116. The third sidewall 115 and the fourth sidewall 116 are two opposite sidewalls and are adjacent to the first sidewall 111 and the second sidewall 112. The first limiting groove is formed between the top surface 113 and the third sidewall 115, and the second limiting groove is formed between the top surface 113 and the fourth sidewall 116.
[0076] Reference Figure 4 The first limiting boss is provided on the first side of the main cover plate 21, which is adjacent to the first side plate 22 and the second side plate 23. The second limiting boss is provided on the second side of the main cover plate 21, which is opposite to the first side plate and is also adjacent to the first side plate 22 and the second side plate 23.
[0077] During the assembly of the transparent cover 2, the first limiting boss is inserted into the first limiting groove, and the second limiting boss is inserted into the second limiting groove, so as to achieve the limiting cooperation of the first limiting structure 114 and the second limiting structure 24, and prevent the transparent cover 2 from swaying left and right on the watch cover 1.
[0078] In some examples, refer to Figure 2 and Figure 3 The first limiting groove and the second limiting groove both extend to the first side wall 111 and the second side wall 112, and the first limiting boss and the second limiting boss extend to the first side plate 22 and the second side plate 23.
[0079] This arrangement can extend the mating length between the first limiting groove and the first limiting boss, as well as the mating length between the second limiting groove and the second limiting boss, which helps to further improve the tightness of the fit between the transparent cover 2 and the protrusion 11.
[0080] The first limiting groove extends from the third sidewall 115 toward the first sidewall 111 and the second sidewall 112, and the second limiting groove extends from the fourth sidewall 116 toward the first sidewall 111 and the second sidewall 112. The first limiting boss extends from the first side simultaneously toward the first side plate 22 and the second side plate 23, and the second limiting boss extends from the second side simultaneously toward the first side plate 22 and the second side plate 23. This allows for more accurate assembly of the transparent cover 2 to the protrusion 11 and further reduces the risk of shaking or detachment.
[0081] Reference Figures 1 to 3In some examples, the electricity meter 100 also includes a first flip cover 3 and a second flip cover 4, both of which are rotatably connected to the meter cover 1. The first flip cover 3 is located on the side of the first side plate 22 away from the second side plate 23, and the first flip cover 3 partially abuts against the first side plate 22. The second flip cover 4 is located on the side of the second side plate 23 away from the first side plate 22, and the second flip cover 4 partially abuts against the second side plate 23.
[0082] By having the first flip cover 3 abut against the first side plate 22, the first side plate 22 can be brought closer to the first side wall 111, thereby making the first snap-fit structure 1111 and the third snap-fit structure 221 more stable and preventing them from separating from each other. The same principle applies to the second flip cover 4 abutting against the second side plate 23, and will not be described in detail here.
[0083] The first flip cover 3 abuts against the first side plate 22 from the side of the first side plate 22 away from the second side plate 23, which can prevent the first side plate 22 from moving or bending away from the second side plate 23, thereby preventing the first side plate 22 from moving away from the first side wall 111, and thus preventing the third snap-fit structure 221 from moving away from the first snap-fit structure 1111.
[0084] The second flip cover 4 abuts against the second side plate 23 from the side of the second side plate 23 away from the first side plate 22, which can prevent the second side plate 23 from moving or bending away from the first side plate 22, thereby preventing the second side plate 23 from moving away from the second side wall 112, and thus preventing the fourth snap-fit structure 231 from moving away from the second snap-fit structure 1121.
[0085] In addition, the first flip cover 3 abuts against the first side plate 22 near the main cover plate 21, and the second flip cover 4 abuts against the second side plate 23 near the main cover plate 21. This can prevent the transparent cover 2 from detaching from the protrusion 11 due to misoperation or misdisassembly.
[0086] Reference Figure 6 In some examples, the snap-fit boss includes an abutment surface 25 and a guide surface 26, with the abutment surface 25 located on the side of the snap-fit boss facing the main cover plate 21 and the guide surface 26 located on the side of the snap-fit boss away from the main cover plate 21.
[0087] The abutting surface 25 of the snap-fit boss is used to abut against the groove wall of the snap-fit groove to realize the snap-fit function, while the guide surface 26 is provided to facilitate the sliding of the transparent cover 2 along the side wall of the protrusion 11 during the assembly process, thereby facilitating assembly.
[0088] When the third snap-fit structure 221 and the fourth snap-fit structure 231 are configured as snap-fit bosses, the abutment surface 25 is located on the side of the snap-fit boss closer to the main cover plate 21, and the guide surface 26 is located on the side away from the main cover plate 21. During the assembly of the transparent cover 2, the guide surface 26 on the snap-fit boss first contacts the first side wall 111 so that the first side plate 22 can slide smoothly along the first side wall 111, thereby facilitating the assembly into place.
[0089] Reference Figure 2 and Figure 3 In some examples, at least one first snap-fit structure 1111 is provided at intervals on the first sidewall 111, at least one second snap-fit structure 1121 is provided at intervals on the second sidewall 112, at least one third snap-fit structure 221 is provided on the first sideplate 22, and at least one fourth snap-fit structure 231 is provided on the second sideplate 23. The third snap-fit structure 221 corresponds one-to-one with the first snap-fit structure 1111, and the fourth snap-fit structure 231 corresponds one-to-one with the second snap-fit structure 1121.
[0090] Setting up one or more first snap-fit structures 1111 and one or more corresponding third snap-fit structures 221 can reduce the shaking of the transparent cover 2 on the protrusion 11 and effectively reduce the risk of the transparent cover 2 detaching from the protrusion 11. The same applies to the second side wall 112 and the second side plate 23. This can make the assembly stability of the watch cover 1 and the transparent cover 2 higher.
[0091] In this embodiment, the first snap-fit structure 1111 and the second snap-fit structure 1121 are configured as snap-fit grooves. Two snap-fit grooves are provided on the first sidewall 111, and these grooves are spaced apart on the side of the first sidewall 111 away from the top surface 113. The second sidewall 112 is the same as the first sidewall 111. Correspondingly, the third snap-fit structure 221 and the fourth snap-fit structure 231 are configured as snap-fit bosses. Two snap-fit bosses are provided on the first sideplate 22, and these bosses are spaced apart on the side of the first sideplate 22 away from the main cover plate 21. The second sideplate 23 is the same as the first sideplate 22.
[0092] The two snap-fit protrusions on the first side plate 22 are snapped into the two snap-fit grooves on the first side wall 111, and the two snap-fit protrusions on the second side plate 23 are snapped into the two snap-fit grooves on the second side wall 112. This can limit the left and right swaying of the transparent cover 2 as well as the back and forth swaying of the transparent cover 2, and significantly improve the assembly stability.
[0093] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. An electricity meter, characterized in that, include: The watch cover includes a protrusion, the protrusion including a first sidewall and a second sidewall facing away from each other, the first sidewall being provided with a first snap-fit structure, and the second sidewall being provided with a second snap-fit structure. A transparent cover includes an integrally formed main cover plate, a first side plate, and a second side plate. The first side plate and the second side plate are disposed opposite to each other on both sides of the main cover plate. A third snap-fit structure is provided on the first side plate, and a fourth snap-fit structure is provided on the second side plate. The transparent cover is disposed on the protrusion, the main cover plate is at least partially attached to the top surface of the protrusion, and the first snap-fit structure is snapped with the third snap-fit structure, and the second snap-fit structure is snapped with the fourth snap-fit structure.
2. The electricity meter according to claim 1, characterized in that, The first snap-fit structure is disposed on the side of the first sidewall away from the top surface, the second snap-fit structure is disposed on the side of the second sidewall away from the top surface, the third snap-fit structure is disposed on the side of the first sideplate away from the main cover plate, and the fourth snap-fit structure is disposed on the side of the second sideplate away from the main cover plate.
3. The electricity meter according to claim 2, characterized in that, The first and second snap-fit structures are configured as snap-fit slots, and the third and fourth snap-fit structures are configured as snap-fit bosses corresponding to the snap-fit slots; Alternatively, the first and second snap-fit structures may be configured as snap-fit protrusions, and the third and fourth snap-fit structures may be configured as snap-fit grooves corresponding to the snap-fit protrusions.
4. The electricity meter according to claim 1, characterized in that, The protrusion is further provided with a first limiting structure, and the transparent cover is further provided with a second limiting structure. The first limiting structure and the second limiting structure are connected in a limiting manner.
5. The electricity meter according to claim 4, characterized in that, The first limiting structure includes a first limiting groove and a second limiting groove that are spaced apart. The second limiting structure includes a first limiting boss and a second limiting boss. The first limiting boss is connected to the first limiting groove, and the second limiting boss is connected to the second limiting groove.
6. The electricity meter according to claim 5, characterized in that, The first limiting groove and the second limiting groove are disposed opposite to each other on the two sides of the top surface, and the first limiting boss and the second limiting boss are disposed opposite to each other on the two sides of the main cover plate.
7. The electricity meter according to claim 6, characterized in that, Both the first limiting groove and the second limiting groove extend to the first side wall and the second side wall, and the first limiting boss and the second limiting boss extend to the first side plate and the second side plate.
8. The electricity meter according to any one of claims 1-7, characterized in that, The electricity meter also includes a first flip cover and a second flip cover, both of which are rotatably connected to the meter cover. The first flip cover is located on the side of the first side plate away from the second side plate, and the first flip cover part abuts against the first side plate. The second flip cover is located on the side of the second side plate away from the first side plate, and the second flip cover part abuts against the second side plate.
9. The electricity meter according to claim 3, characterized in that, The snap-fit boss includes an abutting surface and a guiding surface. The abutting surface is located on the side of the snap-fit boss facing the main cover plate, and the guiding surface is located on the side of the snap-fit boss away from the main cover plate.
10. The electricity meter according to any one of claims 1-7, characterized in that, At least one first snap-fit structure is provided at intervals on the first sidewall, at least one second snap-fit structure is provided at intervals on the second sidewall, at least one third snap-fit structure is provided on the first side plate, and at least one fourth snap-fit structure is provided on the second side plate. The third snap-fit structure corresponds one-to-one with the first snap-fit structure, and the fourth snap-fit structure corresponds one-to-one with the second snap-fit structure.