Electric energy meter and shell assembly

Abstract

The utility model provides an electric energy meter and a shell assembly, and belongs to the technical field of electrical equipment. The shell assembly provided by the utility model comprises a base and an antenna assembly. The base comprises a bottom plate and side plates, and the side plates are connected to the bottom plate, so that a containing cavity is formed in the base. A mounting structure is arranged on the side plate and comprises a mounting hole penetrating through the side plate and a limiting block arranged in the accommodating cavity. The antenna assembly comprises an antenna pedestal, the antenna pedestal comprises a first end and a second end which are opposite in position, the first end penetrates through the mounting hole and is located outside the containing cavity, and the second end is located in the containing cavity and is provided with a limiting part. The side plates are matched with the limiting parts to limit the antenna pedestal in the first direction, and the limiting blocks are matched with the limiting parts to limit the antenna pedestal in the second direction. The antenna pedestal can be limited in the first direction and the second direction, the possibility that the antenna pedestal falls off from the base is reduced, and meanwhile the possibility that the antenna pedestal moves into the containing cavity is reduced.

Description

Technical Field

[0001] This application relates to the field of electrical equipment technology, and in particular to an electricity meter and its housing assembly. Background Technology

[0002] With the digital transformation of the power sector, the demand for power consumption monitoring in power grid systems and equipment circuits is increasing. For aging power grids and equipment, digital upgrades are not only costly to control but also extremely difficult. Adding electricity meters to aging power grids or equipment is a very suitable and economical solution.

[0003] After testing the circuit, the electricity meter needs to transmit data, which requires an antenna assembly to be installed in the electricity meter. However, the antenna assembly often shifts during the use of the electricity meter, which not only reduces the reliability of the electricity meter but may also damage the electricity meter. Utility Model Content

[0004] This application provides an energy meter and housing assembly to reduce the possibility of antenna assembly displacement, thereby improving the reliability of the energy meter.

[0005] In a first aspect, this application provides a housing assembly including a base and an antenna assembly. The base includes a bottom plate and a side plate, with the side plate connected to the bottom plate to form a receiving cavity. The side plate has a mounting structure including a mounting hole penetrating the side plate and a limiting block disposed within the receiving cavity. The antenna assembly includes an antenna mount, which has a first end and a second end positioned opposite each other. The first end passes through the mounting hole and is located outside the receiving cavity, while the second end is located inside the receiving cavity and has a limiting portion. The side plate cooperates with the limiting portion to limit the antenna mount in a first direction, and the limiting block cooperates with the limiting portion to limit the antenna mount in a second direction, where the first and second directions are opposite.

[0006] Through the above-described solution, this application utilizes a combination of side plates and a base plate to form a receiving cavity, which can protect some components of the energy meter. The mounting holes allow the antenna mount to be installed on the base. A limiting part is provided at the second end of the antenna mount. This limiting part, in conjunction with the side plate, can limit the antenna mount in the first direction, reducing the probability of the antenna mount falling off the base and improving the reliability of the energy meter. A limiting block is provided within the receiving cavity. This limiting block, in conjunction with the limiting part, can limit the antenna mount in the second direction, reducing the probability of the antenna mount moving into the receiving cavity and causing damage to other components within the cavity, thereby reducing the later maintenance costs of the energy meter.

[0007] In one possible design, the limiting block is connected to the side plate. The limiting block has a baffle, and there is a gap between the baffle and the side plate near the receiving cavity. The limiting part is located within the gap, with one side of the limiting part abutting against the baffle and the other side of the limiting part abutting against the side plate.

[0008] With the above solution, the limiting block is mounted on the side plate, and a baffle is installed on the limiting block. This creates a gap between the baffle and the side plate, providing space for the limiting part and reducing the probability of interference with the limiting part caused by the baffle. This improves the installation reliability of the antenna mount without affecting the limiting block's ability to limit the antenna mount. By using the baffle in conjunction with the side plate, the antenna mount can be limited in both the first and second directions.

[0009] In one possible design, the limiting block includes a first block and a second block, with a mounting hole located between the first block and the second block. The limiting part includes a sidewall that abuts against both the first block and the second block.

[0010] By utilizing the above-described scheme, the simultaneous contact between the limiting part and both the first and second blocks generates friction between the first and second blocks and the limiting part. This clamps the limiting part between the first and second blocks, thus limiting the antenna mount and reducing the angle of rotation of the antenna assembly relative to the base, thereby increasing the reliability of the antenna assembly. Furthermore, the friction between the first and second blocks and the limiting part reduces the possibility of displacement of the antenna mount in the first and second directions, thus also limiting the antenna mount in these directions.

[0011] In one possible design, the limiting part is prism-shaped, and the sidewalls include a first sidewall and a second sidewall. The first sidewall contacts a first surface, and the second sidewall contacts a second surface.

[0012] Through the above scheme, the limiting part of the prism structure can interfere with the base plate during rotation, thus reducing the possibility of the antenna mount rotating within the mounting hole, and consequently reducing the possibility of the antenna mount rotating relative to the base, increasing the reliability of the antenna mount. The first sidewall and the first block have surface contact, and the second sidewall and the second block have surface contact. The first and second blocks can be used to limit the rotation of the limiting part, and also increase the friction between the limiting part and the limiting blocks, making the clamping of the limiting part more secure, thereby reducing the possibility of the antenna mount rotating within the mounting hole. Furthermore, as the friction between the limiting part and the limiting blocks increases, the possibility of displacement of the antenna mount in the first and second directions can be reduced, thus also limiting the antenna mount in the first and second directions.

[0013] In one possible design, the mounting structure further includes a mounting groove disposed on the side of the side plate near the receiving cavity. The mounting groove includes a first groove wall and a second groove wall. The limiting part is prismatic, and the side wall further includes a third side wall and a fourth side wall, with the third side wall contacting the first groove wall surface and the fourth side wall contacting the second groove wall surface.

[0014] With the above solution, a mounting groove is provided on the side of the side plate near the receiving cavity. When the limiting part abuts against the side plate, part of the limiting part can be located in the mounting groove. When part of the limiting part is located in the mounting groove, the third side wall of the limiting part abuts against the first groove wall of the mounting groove, and the fourth side wall of the limiting part abuts against the second groove wall of the mounting groove. In this way, the mounting groove can limit the rotation of the limiting part, thereby reducing the possibility of the antenna mount rotating in the mounting hole, so as to reduce the effect of the antenna mount rotating relative to the base.

[0015] In one possible design, the side of the baffle away from the limiting block is provided with a first guide structure.

[0016] With the above scheme, when the antenna mount is installed on the base, it is installed from inside the receiving cavity to outside the receiving cavity. Since the baffle needs to limit the limiting part, the baffle part is located on the moving path of the mounting base. At this time, the setting of the first guide structure can reduce the resistance of the baffle to the limiting part when the limiting part enters the gap between the baffle and the side plate. This makes the installation of the antenna mount simpler and improves the installation efficiency of the antenna mount.

[0017] In one possible design, the mounting structure also includes a stop. The stop is located within the receiving cavity and is connected to the base plate. There is a gap between the stop and the side plate near the receiving cavity. A limiting part is located within the gap, with one side of the limiting part abutting against the stop and the other side of the limiting part abutting against the side plate.

[0018] The above solution creates a gap between the stop and the side plate, providing space for the limiting part and reducing the probability of interference with the limiting part caused by the stop. The combination of the stop and the side plate further enhances the limiting effect of the mounting structure on the antenna mount in both the first and second directions. This improves the installation reliability of the antenna mount.

[0019] In one possible design, a second guide structure is provided on the side of the stop away from the base plate.

[0020] With the above scheme, when the antenna mount is installed on the base, it is installed from inside the receiving cavity to outside the receiving cavity. Since the stop block needs to limit the limiting part, the stop block part is located on the moving path of the mounting base. At this time, the setting of the second guide structure can reduce the resistance of the stop block to the limiting part when the limiting part enters the gap between the stop block and the side plate. This makes the installation of the antenna mount simpler and improves the installation efficiency of the antenna mount.

[0021] In one possible design, the mounting structure also includes a fastener fitted onto the first end of the antenna mount. The fastener, the limiting part, and the side plate work together to limit the antenna mount in both a first direction and a second direction.

[0022] By employing the above method, a fastener is fitted onto the first end of the antenna mount. This fastener, in conjunction with a limiting part at the second end of the antenna mount, clamps the side plate, thereby improving the limiting effect of the mounting structure on the antenna mount in both the first and second directions. This further enhances the reliability of the electricity meter.

[0023] Secondly, this application provides an electricity meter. The electricity meter includes a top cover, an antenna body, and the housing assembly mentioned in the first aspect. The top cover and the base in the housing assembly are mutually capped. The antenna body is connected to the antenna mount of the housing assembly.

[0024] The beneficial effects of the electricity meter provided in the second aspect above can be found in the first aspect and the beneficial effects of the various possible implementations of the first aspect, and will not be repeated here. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the electricity meter provided in the embodiments of this application.

[0026] Figure 2 This is a schematic diagram of the structure of the base provided in an embodiment of this application.

[0027] Figure 3 This is a schematic diagram of the antenna mount provided in an embodiment of this application from one viewpoint.

[0028] Figure 4 This is an assembly diagram of the base and antenna mount provided in an embodiment of this application.

[0029] Figure 5 This is a schematic diagram of the internal structure of the base after the antenna mount is assembled, as provided in the embodiments of this application.

[0030] Figure 6 for Figure 5 An enlarged view of section A.

[0031] Figure 7 An internal view of the base provided in an embodiment of this application.

[0032] Figure 8 for Figure 7 A magnified view of section B.

[0033] Figure 9 This is a schematic diagram of the antenna mount provided in an embodiment of this application from another perspective.

[0034] Explanation of reference numerals in the attached figures:

[0035] 100. Base; 110. Base plate; 120. Side plate;

[0036] 200. Mounting structure; 210. Mounting hole; 220. Limiting block; 221. First block; 222. Second block; 230. Baffle; 240. Stop block; 250. Mounting groove; 251. First groove wall; 252. Second groove wall; 260. Fastener;

[0037] 300, Antenna assembly; 310, Antenna mount; 320, First end; 330, Second end; 340, Limiting part; 341, First sidewall; 342, Second sidewall; 343, Third sidewall; 344, Fourth sidewall;

[0038] 400. Top cover;

[0039] 500. Antenna body. Detailed Implementation

[0040] 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, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0042] The terms "comprising" and "having," and any variations thereof, used in the specification, claims, and drawings of this application are intended to cover without excluding other meanings. The words "a" or "an" do not exclude the presence of multiples.

[0043] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0044] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0045] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. For example, in the description of this application, terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are used only for the convenience of describing this application and 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.

[0046] Furthermore, the terms "first," "second," etc., in the specification and claims of this application or in the aforementioned drawings are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more of the features.

[0047] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "connection" or "joining" in mechanical structures can refer to a physical connection. A physical connection can be a fixed connection, such as a connection secured by fasteners, such as a connection secured by screws, bolts, or other fasteners; a physical connection can also be a detachable connection, such as a snap-fit ​​or interlocking connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0048] 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.

[0049] Figure 1 This is a schematic diagram of the overall structure of an electricity meter provided in an embodiment of this application. Figure 1 As shown, this application provides an electricity meter. The electricity meter includes a top cover 400, an antenna body 500, and a housing assembly. The top cover 400 and the base 100 in the housing assembly are mutually covered. The antenna body 500 is connected to the antenna mount 310 of the housing assembly.

[0050] For example, the antenna mount 310 may have a thread at one end outside the base 100, and the antenna body 500 may have a threaded hole. The threaded hole of the antenna body 500 is fitted onto the thread of the antenna mount 310, so that the antenna body 500 can be threadedly connected to the antenna mount 310.

[0051] The antenna body 500 is connected to the outside of the base 100, which facilitates the transmission and reception of signals by the energy meter.

[0052] Electricity meters can detect parameters such as current, voltage, and power in external circuits and upload the detected data. Electricity meters are commonly used for the digital upgrading and transformation of aging power grids and equipment.

[0053] The top cover 400 may have a receiving cavity inside, and the base 100 may also have a receiving cavity inside. After the top cover 400 and the base 100 are closed, the receiving cavity inside the top cover 400 can be combined with the receiving cavity inside the base 100 to form an installation space, and some components of the electricity meter can be installed in this installation space.

[0054] The housing components mentioned in this application will now be described clearly and completely with reference to the accompanying drawings.

[0055] Figure 2 This is a schematic diagram of the structure of the base provided in an embodiment of this application. Figure 3 This is a schematic diagram of the antenna mount provided in an embodiment of this application from a certain viewing angle. Figures 1 to 3As shown, this application provides a housing assembly including a base 100 and an antenna assembly 300. The base 100 includes a base plate 110 and a side plate 120, with the side plate 120 connected to the base plate 110 to form a receiving cavity. The side plate 120 is provided with a mounting structure 200, which includes a mounting hole 210 penetrating the side plate 120 and a limiting block 220 disposed within the receiving cavity. The antenna assembly 300 includes an antenna mount 310, which includes a first end 320 and a second end 330 positioned opposite each other. The first end 320 passes through the mounting hole 210 and is located outside the receiving cavity, while the second end 330 is located inside the receiving cavity and is provided with a limiting portion 340. The side plate 120 cooperates with the limiting part 340 to limit the antenna mount 310 in the first direction, and the limiting block 220 cooperates with the limiting part 340 to limit the antenna mount 310 in the second direction. The first direction and the second direction are opposite.

[0056] The base plate 110 can be plate-shaped, and the side plate 120 can be formed by connecting multiple plates end to end. The side plate 120 is connected to the base plate 110, and the space between the side plate 120 and the base plate 110 is the receiving cavity. The mounting hole 210 can be a circular through hole structure provided on the side plate 120. The mounting hole 210 can be integrally formed with the side plate 120, or the mounting hole 210 can be set on the side plate 120 by carving or cutting after the side plate 120 is formed.

[0057] Antenna assembly 300 can be used to transmit signals to an external receiver. Antenna mount 310 can be part of antenna assembly 300, and its arrangement provides mounting conditions for antenna body 500. A first end 320 of antenna mount 310 can extend from inside the receiving cavity through mounting hole 210 to the outside of the receiving cavity, allowing antenna body 500 to be mounted on the first end 320. A second end 330 of antenna mount 310 is located inside the receiving cavity and is connected to components within the receiving cavity via wires.

[0058] The limiting part 340 can be a protrusion structure provided on the second end 330. When the first end 320 of the antenna mount 310 extends from inside the receiving cavity through the mounting hole 210 to outside the receiving cavity, the limiting part 340 can abut against the side plate 120, preventing the second end 330 of the antenna assembly 300 from continuing to move out of the receiving cavity. At this time, the limiting part 340 cooperates with the side plate 120 to limit the antenna mount 310 in a first direction, which is the direction from inside the receiving cavity to outside the receiving cavity along the axis of the mounting hole 210.

[0059] The limiting block 220 can be a protrusion on the base 100, and the limiting block 220 is located inside the receiving cavity. When the first end 320 of the antenna mount 310 extends from inside the receiving cavity through the mounting hole 210 to outside the receiving cavity, the limiting block 220 can abut against the limiting part 340, preventing the second end 330 of the antenna assembly 300 from moving into the receiving cavity. At this time, the limiting block 220 and the limiting part 340 cooperate to limit the antenna mount 310 in a second direction, which is the direction from outside the receiving cavity to inside the receiving cavity along the axis of the mounting hole 210.

[0060] In summary, this application utilizes the combination of the side plate 120 and the base plate 110 to form a receiving cavity in the base 100, which can protect some components of the energy meter. The mounting hole 210 allows the antenna mount 310 to be mounted on the base 100. A limiting part 340 is provided at the second end 330 of the antenna mount 310. By cooperating with the side plate 120, the limiting part 340 can limit the antenna mount 310 in the first direction, reducing the probability of the antenna mount 310 falling off the base 100 and improving the reliability of the energy meter. A limiting block 220 is provided within the receiving cavity. By cooperating with the limiting part 340, the limiting block 220 can limit the antenna mount 310 in the second direction, reducing the probability of the antenna mount 310 moving into the receiving cavity and causing damage to other components within the cavity, thereby reducing the later maintenance costs of the energy meter.

[0061] Figure 4 This is an assembly diagram of the base and antenna mount provided in an embodiment of this application. Figures 2 to 4 As shown, the mounting structure 200 also includes a fastener 260, which is sleeved on the first end 320 of the antenna mount 310. The fastener 260, the limiting part 340, and the side plate 120 cooperate to limit the antenna mount 310 in the first direction and the second direction.

[0062] The fastener 260 may have a through hole, which may be a smooth hole or a threaded hole.

[0063] When the through hole on the fastener 260 is a smooth hole, the first end 320 of the antenna mount 310 may not be threaded. When the fastener 260 is fitted onto the first end 320, the fastener 260 and the first end 320 may be an interference fit.

[0064] When the through hole on the fastener 260 is a threaded hole, the first end 320 of the antenna mount 310 can be threaded. When the fastener 260 is fitted onto the first end 320, the fastener 260 and the first end 320 can be threadedly engaged.

[0065] When the antenna mount 310 is installed on the base 100, the limiting part 340 abuts against the side plate 120 near the receiving cavity, and at the same time, the fastener 260 abuts against the side plate 120 away from the receiving cavity. In this way, the limiting part 340 and the fastener 260 can clamp the side plate 120, thereby limiting the antenna mount 310.

[0066] With the above configuration, a fastener 260 is fitted onto the first end 320 of the antenna mount 310. The fastener 260 cooperates with the limiting part 340 provided on the second end 330 of the antenna mount 310 to clamp the side plate 120, thereby improving the limiting effect of the mounting structure 200 on the antenna mount 310 in the first and second directions. This further improves the reliability of the electricity meter.

[0067] Figure 5 This is a schematic diagram of the internal structure of the base after the antenna mount is assembled, as provided in the embodiments of this application. Figure 6 for Figure 5 An enlarged view of section A. (See image.) Figure 5 as well as Figure 6 As shown, the limiting block 220 is connected to the side plate 120. The limiting block 220 is provided with a baffle 230, and there is a gap between the baffle 230 and the side plate 120 near the receiving cavity. The limiting part 340 is located within the gap, with one side of the limiting part 340 abutting against the baffle 230 and the other side of the limiting part 340 abutting against the side plate 120.

[0068] The limiting block 220 can be a protrusion extending from the side of the side plate 120 near the receiving cavity. The baffle 230 can be a plate-like structure provided on the side of the limiting block 220 away from the side plate 120, so that a gap can be formed between the baffle 230 and the side of the side plate 120 near the receiving cavity. The baffle 230 can be partially located on the moving path of the antenna mount 310, and when the antenna mount 310 is installed on the base 100, the limiting part 340 provided at the second end 330 of the antenna mount 310 can be located within this gap.

[0069] When the limiting part 340 is located within the gap between the baffle 230 and the side plate 120, the side of the limiting part 340 away from the side plate 120 can abut against the baffle 230, and the side of the limiting part 340 close to the side plate 120 can abut against the side plate 120. Thus, when the antenna mount 310 moves outward from the receiving cavity, the side plate 120 can limit the antenna mount 310; when the antenna mount 310 moves inward from the receiving cavity, the baffle 230 can limit the antenna mount 310.

[0070] In summary, the limiting block 220 is disposed on the side plate 120, and the baffle 230 is disposed on the limiting block 220, which creates a gap between the baffle 230 and the side plate 120. This provides space for the limiting part 340, reducing the probability of interference with the setting of the limiting part 340 caused by the baffle 230. Without affecting the limiting block 220's ability to limit the antenna mount 310, the installation reliability of the antenna mount 310 is improved. By using the baffle 230 in conjunction with the side plate 120, the antenna mount 310 can be limited in both the first and second directions.

[0071] like Figure 2 , Figure 3 as well as Figure 6 As shown, a first guide structure may be provided on the side of the baffle 230 away from the limiting block 220.

[0072] The first guide structure can be an arc-shaped chamfer on one side of the baffle 230 on the moving path of the antenna mount 310, with the arc-shaped chamfer facing away from the mounting hole 210.

[0073] In summary, when the antenna mount 310 is installed onto the base 100, it is installed from inside the receiving cavity to outside the receiving cavity. Since the baffle 230 needs to limit the limiting part 340, part of the baffle 230 is located on the moving path of the mounting base. At this time, the setting of the first guide structure can reduce the resistance of the baffle 230 to the limiting part 340 when the limiting part 340 enters the gap between the baffle 230 and the side plate 120. This makes the installation of the antenna mount 310 simpler and improves the installation efficiency of the antenna mount 310.

[0074] Please continue to refer to the following: Figure 2 , Figure 5 as well as Figure 6 As shown, the mounting structure 200 also includes a stop 240. The stop 240 is located within the receiving cavity and is connected to the base plate 110. There is a gap between the stop 240 and the side plate 120 near the receiving cavity. A limiting part 340 is located within the gap, with one side of the limiting part 340 abutting against the stop 240 and the other side of the limiting part 340 abutting against the side plate 120.

[0075] The stop block 240 can be a protrusion on the base plate 110. The mounting hole 210 is provided on the side plate 120, and there is a gap between the mounting hole 210 and the base plate 110. The part of the stop block 240 away from the base plate 110 can correspond to the mounting hole 210, so that part of the stop block 240 can be located on the moving path of the antenna mount 310. The side of the stop block 240 facing the side plate 120 can be on the same plane as the side of the stop plate 230 facing the side plate 120.

[0076] In summary, the gap between the stop 240 and the side plate 120 provides space for the limiting part 340, reducing the probability of interference with the setting of the limiting part 340 caused by the stop 240. By using the cooperation between the stop 240 and the side plate 120, the limiting effect of the mounting structure 200 on the antenna mount 310 in the first and second directions can be further improved. This improves the installation reliability of the antenna mount 310.

[0077] Please continue to refer to Figure 2 , Figure 3 as well as Figure 6 As shown, the side of the stop block 240 away from the base plate 110 is provided with a second guide structure.

[0078] The second guide structure can be an arc-shaped chamfer on one side of the moving path of the stop 240 on the antenna mount 310, with the arc-shaped chamfer facing away from the mounting hole 210.

[0079] In summary, when the antenna mount 310 is installed onto the base 100, it is installed from inside the receiving cavity to outside the receiving cavity. Since the stop block 240 needs to limit the limiting part 340, part of the stop block 240 is located on the moving path of the mounting base. At this time, the setting of the second guide structure can reduce the resistance of the stop block 240 to the limiting part 340 when the limiting part 340 enters the gap between the stop block 240 and the side plate 120. This makes the installation of the antenna mount 310 simpler and improves the installation efficiency of the antenna mount 310.

[0080] Since the mounting hole 210 is a circular through hole structure, the antenna assembly 300 is prone to rotate within the mounting groove 250 during the use of the energy meter, which will affect the reliability of the energy meter. Therefore, the housing assembly provided in this application can also limit the rotation of the antenna assembly 300, which will be explained in detail below with reference to the accompanying drawings.

[0081] Figure 7 An internal view of the base provided in an embodiment of this application. Figure 8 This is an enlarged view of part B in the diagram. For example... Figure 3 , Figure 7 as well as Figure 8 As shown, the limiting block 220 includes a first block 221 and a second block 222, and the mounting hole 210 is located between the first block 221 and the second block 222. The limiting part 340 includes a side wall that abuts against both the first block 221 and the second block 222.

[0082] The first piece 221 and the second piece 222 can be the same size and shape, and can be symmetrically arranged on both sides of the mounting hole 210. The baffle 230 can be provided only on the first piece 221, or only on the second piece 222, or both the first piece 221 and the second piece 222 can have baffles 230. The sidewall of the limiting part 340 can be a surface that does not contact the baffle 230 or the side plate 120.

[0083] The distance between the first block 221 and the second block 222 can be equal to the width of the cross-section of the limiting part 340, or the distance between the first block 221 and the second block 222 can be slightly smaller than the width of the cross-section of the limiting part 340. The cross-section of the limiting part 340 is perpendicular to the axial direction of the mounting hole 310, and the width of the cross-section of the limiting part 340 refers to the dimension of this cross-section in the direction in which the first block 221 and the second block 222 are arranged.

[0084] When the antenna mount 310 is installed on the base 100, the limiting part 340 abuts against the side plate 120. At this time, the side wall of the first piece 221 facing the second piece 222 abuts against the side wall of the limiting part 340, and at the same time, the side wall of the second piece 222 facing the first piece 221 also abuts against the side wall of the limiting part 340.

[0085] In summary, by simultaneously abutting the limiting part 340 against the first block 221 and the second block 222, frictional forces are generated between the first block 221 and the limiting part 340, and between the second block 222 and the limiting part 340. This allows the first block 221 and the second block 222 to clamp the limiting part 340, thereby limiting the antenna mount 310 and reducing the possibility of rotation of the antenna assembly 300 relative to the base 100, thus increasing the reliability of the antenna assembly 300. Furthermore, the frictional forces generated between the first block 221 and the limiting part 340, and between the second block 222 and the limiting part 340, reduce the possibility of displacement of the antenna mount 310 in the first and second directions, thus also limiting the antenna mount 310 in the first and second directions.

[0086] Figure 9 This is a schematic diagram of the antenna mount provided in an embodiment of this application from another perspective. (See diagram below.) Figure 2 , Figure 3 , Figure 7 , Figure 8 as well as Figure 9 As shown, the limiting part 340 is prismatic, and its sidewalls include a first sidewall 341 and a second sidewall 342. The first sidewall 341 is in contact with the surface of the first block 221, and the second sidewall 342 is in contact with the surface of the second block 222.

[0087] The cross-section of the limiting part 340 can be polygonal, wherein the cross-section of the limiting part 340 is perpendicular to the axial direction of the mounting hole 310. The limiting part 340 can be a square prism, pentagonal prism, or hexagonal prism, etc. Because the limiting part 340 has a prism structure, the limiting part 340 can have multiple sidewalls, wherein the first sidewall 341 and the second sidewall 342 can be two opposite sidewalls among the multiple sidewalls.

[0088] When the second end 330 of the antenna mount 310 is located in the receiving cavity, the limiting part 340 simultaneously abuts against the first block 221 and the second block 222. At this time, the first side wall 341 can contact the surface of the first block 221, and the second side wall 342 can contact the surface of the second block 222.

[0089] With the above settings, the limiting part 340 of the prism structure can interfere with the base plate 110 during rotation, which can reduce the possibility of the antenna mount 310 rotating in the mounting hole 210, thereby reducing the possibility of the antenna mount 310 rotating relative to the base 100 and increasing the reliability of the antenna mount 310.

[0090] The first sidewall 341 is in surface contact with the first block 221, and the second sidewall 342 is in surface contact with the second block 222. The first block 221 and the second block 222 can be used to limit the rotation of the limiting part 340, and can also increase the friction between the limiting part 340 and the limiting block 220. This can make the first block 221 and the second block 222 clamp the limiting part 340 more firmly, thereby reducing the possibility of the antenna mount 310 rotating in the mounting hole 210.

[0091] Furthermore, when the friction between the limiting part 340 and the limiting block 220 increases, the possibility of displacement of the antenna mount 310 in the first direction and the second direction can be reduced, thereby limiting the antenna mount 310 in the first direction and the second direction.

[0092] like Figure 3 , Figure 8 as well as Figure 9 As shown, the mounting structure 200 also includes a mounting groove 250, which is disposed on the side of the side plate 120 near the receiving cavity. The mounting groove 250 includes a first groove wall 251 and a second groove wall 252. The limiting part 340 is prismatic, and the side wall also includes a third side wall 343 and a fourth side wall 344. The third side wall 343 is in contact with the surface of the first groove wall 251, and the fourth side wall 344 is in contact with the surface of the second groove wall 252.

[0093] The mounting groove 250 can be a blind groove opened on the side of the side plate 120 near the receiving cavity. Since the side plate 120 is relatively thin, a thickening layer can be provided on the side of the side plate 120 near the receiving cavity, and then the mounting groove 250 can be opened on the thickening layer to facilitate the opening of the mounting groove 250 on the side plate 120.

[0094] The mounting groove 250 can communicate with the mounting hole 210, and the groove opening of the mounting groove 250 can face the cavity. The mounting groove 250 can be a polygonal groove, and the shape of the mounting groove 250 can be the same as the cross-sectional shape of the limiting part 340, so that when the limiting part 340 abuts against the side plate 120, part of the limiting part 340 can be located in the mounting groove 250.

[0095] The third sidewall 343 and the fourth sidewall 344 can be two of the more than one sidewall of the limiting part 340. The third sidewall 343 and the fourth sidewall 344 can be adjacent to each other, or the third sidewall 343 and the fourth sidewall 344 can be opposite each other.

[0096] In summary, a mounting groove 250 is provided on the side of the side plate 120 near the receiving cavity. When the limiting part 340 abuts against the side plate 120, part of the limiting part 340 can be located within the mounting groove 250. When part of the limiting part 340 is located within the mounting groove 250, the third side wall 343 of the limiting part 340 abuts against the first groove wall 251 of the mounting groove 250, and the fourth side wall 344 of the limiting part 340 abuts against the second groove wall 252 of the mounting groove 250. In this way, the mounting groove 250 can limit the rotation of the limiting part 340, thereby reducing the possibility of the antenna mount 310 rotating within the mounting hole 210, thus achieving the effect of reducing the rotation of the antenna mount 310 relative to the base 100.

Claims

1. A housing assembly, characterized by, The base comprises a bottom plate and a side plate connected to the bottom plate, so that the base forms a receiving cavity; The side plate is provided with a mounting structure comprising a mounting hole penetrating through the side plate and a limiting block arranged in the receiving cavity; The antenna assembly comprises an antenna base comprising a first end and a second end opposite to each other, the first end penetrating through the mounting hole and being located outside the receiving cavity, and the second end being located in the receiving cavity; the second end is provided with a limiting portion; The side plate and the limiting portion cooperate to limit the antenna base in a first direction, and the limiting block and the limiting portion cooperate to limit the antenna base in a second direction, the first direction being opposite to the second direction. The limiting block is connected to the side plate; 2. The housing assembly of claim 1, wherein, The limiting block is provided with a baffle, and a gap is formed between the baffle and the side of the side plate close to the receiving cavity; The limiting portion is located in the gap, one side of the limiting portion abuts against the baffle, and the other side of the limiting portion abuts against the side plate. The limiting block comprises a first block and a second block, and the mounting hole is located between the first block and the second block; 3. The housing assembly of claim 1 or 2, wherein, The limiting portion comprises a side wall, and the side wall abuts against both the first block and the second block. The limiting portion is prismatic, and the side wall comprises a first side wall and a second side wall; 4. The housing assembly of claim 3, wherein, The first side wall abuts against the first block, and the second side wall abuts against the second block. The mounting structure further comprises a mounting groove arranged on the side of the side plate close to the receiving cavity; 5. The housing assembly of claim 3, wherein, The mounting groove comprises a first groove wall and a second groove wall; The limiting portion is prismatic, and the side wall further comprises a third side wall and a fourth side wall, the third side wall abuts against the first groove wall, and the fourth side wall abuts against the second groove wall. The side of the baffle away from the limiting block is provided with a first guide structure.

6. The housing assembly of claim 2, wherein, The mounting structure further comprises a stop block; 7. The housing assembly of claim 2, wherein, The stop block is located in the receiving cavity, and the stop block is connected to the bottom plate; A gap is formed between the stop block and the side of the side plate close to the receiving cavity; The limiting portion is located in the gap, one side of the limiting portion abuts against the stop block, and the other side of the limiting portion abuts against the side plate. The side of the stop block away from the bottom plate is provided with a second guide structure.

8. The housing assembly of claim 7, wherein, The mounting structure further comprises a fastener sleeved on the first end of the antenna base; 9. The housing assembly of claim 1, wherein, The fastener, the limiting portion, and the side plate cooperate to limit the antenna base in the first direction and the second direction. The top cover, the antenna body, and the shell assembly as claimed in any one of claims 1 to 9 are comprised; 10. An electric energy meter, characterized by The top cover and the base of the shell assembly are mutually covered; The antenna body is connected to the antenna base of the shell assembly. ​

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