Slot assembly and electric energy meter

Abstract

The utility model provides a slot assembly and an electric energy meter, and the slot assembly comprises a slot frame which comprises a card insertion channel and a first jack, and an electric card can be inserted into the card insertion channel through the first jack; the non-metal support is installed in the slot frame and can move between a first position and a second position in the radial direction of the card insertion channel, when the electric card is not inserted into the card insertion channel, the non-metal support is located at the first position, at least part of the non-metal support extends into the card insertion channel, and when the electric card is inserted into the card insertion channel, the non-metal support is located at the second position. The non-metal support can move from the first position to the second position and can extrude the electric card in the card insertion channel. According to the structure, due to the fact that the hardness of the non-metal support is small, abrasion of the non-metal support to the electric card can be reduced in the card inserting process, the electric card can be protected, and the electric card is prevented from losing efficacy after being used for a long time. Compared with a metal support, the non-metal support is cheaper in price, so that the cost of the slot assembly can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of electric energy meters, and in particular to a slot assembly and an electric energy meter. Background Art

[0002] The energy meter includes a slot assembly, which corrects the skew of the card insertion process, facilitating smooth card insertion and removal, ensuring efficient data reading and writing. In existing solutions, the slot assembly is costly and prone to damage to the energy card.

[0003] Therefore, how to provide a slot assembly with low cost and not easy to damage the electric card has become a problem that needs to be solved urgently. Utility Model Content

[0004] The present application aims to at least solve the problems in the prior art or related art of high cost of slot components and easy damage to the electrical card.

[0005] To this end, a first aspect of the present application is to provide a socket assembly.

[0006] A second aspect of the present application is to provide an electric energy meter.

[0007] The technical solution of the first aspect of the present application provides a slot assembly for an electric energy meter, the electric energy meter includes an electric card, and the slot assembly includes: a slot frame, the slot frame includes a card insertion channel and a first socket connected to the card insertion channel, and the electric card can be inserted into the card insertion channel through the first socket; a non-metallic bracket, installed in the slot frame, and can move between a first position and a second position along the radial direction of the card insertion channel. When no electric card is inserted into the card insertion channel, the non-metallic bracket is in the first position, and at least part of the non-metallic bracket extends into the card insertion channel. When the electric card is inserted into the card insertion channel, the non-metallic bracket can move from the first position to the second position and can squeeze the electric card in the card insertion channel.

[0008] The slot assembly provided in the present application can be specifically used in an electricity meter, which can insert an electric card to manage electricity usage. The slot assembly provides a card insertion channel for the electricity meter. Specifically, the slot assembly in the present application includes a slot frame and a non-metallic bracket. The slot frame is provided with a card insertion channel and a first socket for inserting a power card. The non-metallic bracket is mounted on the slot frame, located on one side of the card insertion channel along a radial direction. The non-metallic bracket is elastic and can move between a first position and a second position along the radial direction of the card insertion channel. Before the card is inserted, the non-metallic bracket is in the first position, also known as the initial position. During the card insertion process, the non-metallic bracket moves radially along the card insertion channel to the second position under the pressure of the electric card. In the second position, the non-metallic bracket is deformed, generating a rebound force that compresses the electric card. This rebound force can squeeze the electric card, thereby clamping the electric card in place with the help of the non-metallic bracket and the slot frame, preventing the electric card from falling. This structure, by providing an elastic bracket, ensures smooth card insertion and removal while also increasing the card's retention force, preventing it from falling. Furthermore, because the non-metallic bracket is relatively soft, this structure reduces wear on the card during insertion, protecting the card and preventing it from failing after prolonged use. Furthermore, non-metallic brackets are more affordable than metal brackets, reducing the cost of the slot assembly.

[0009] In any of the above embodiments, optionally, the non-metallic bracket is located on one side of the card insertion channel along the radial direction of the card insertion channel, and when the non-metallic bracket is in the first position, at least part of the non-metallic bracket abuts against the inner wall of the card insertion channel on the other side of the card insertion channel along the radial direction of the card insertion channel.

[0010] In this embodiment, the non-metallic bracket is located on one side of the card insertion channel. When in the first position, the non-metallic bracket abuts the inner wall of the card insertion channel on the other side. This allows the non-metallic bracket to block the card insertion channel when no card is inserted, thereby reducing the possibility of external dust, moisture, etc. entering the card insertion channel. This arrangement, by blocking the card insertion channel with the non-metallic bracket, can improve the waterproof and dustproof performance of the entire slot assembly.

[0011] The slot frame includes a housing cavity located radially along the card insertion channel and on one side of the card insertion channel. The housing cavity communicates with the card insertion channel. A non-metallic bracket is mounted within the housing cavity and at least partially inserted into the card insertion channel. The non-metallic bracket is movable radially along the card insertion channel between a first position and a second position.

[0012] In any of the above embodiments, optionally, the non-metallic bracket includes a plastic bracket.

[0013] In this embodiment, the plastic bracket has a low cost and is not easily scratched on the electric card, thereby making the electric card more durable.

[0014] In any of the above embodiments, the non-metallic bracket can optionally undergo elastic deformation to move from a first position to a second position. The non-metallic bracket can undergo elastic deformation under the action of the electrical card, thereby moving from the first position to the second position. This allows the non-metallic bracket to be in an elastically deformed state in the second position, thereby clamping the electrical card through its rebound force and preventing it from falling. Of course, the non-metallic bracket can also be configured as a non-elastic bracket, in which case the elastic force can be provided by a spring or the like.

[0015] In any of the above embodiments, optionally, the non-metallic bracket includes: a bracket portion, installed in the slot frame, located on the radial side of the card insertion channel along the card insertion channel; at least two elastic arms, arranged on the side of the bracket portion away from the card insertion channel; one end of the elastic arm is connected to the bracket portion, and the other end of the elastic arm is suspended and extends obliquely in a direction away from the bracket portion.

[0016] In this embodiment, the non-metallic bracket includes a bracket portion and at least two elastic arms. The bracket portion is used to contact the electrical card to compress the electrical card, thereby providing a clamping force for the electrical card. The provision of the elastic arms ensures the elasticity of the non-metallic bracket, allowing the non-metallic bracket to elastically deform between a first position and a second position. The inclined, suspended ends of the elastic arms ensure good elasticity of the elastic arms.

[0017] In any of the above embodiments, optionally, the at least two elastic arms are divided into two groups and are arranged axially symmetrically on the bracket portion.

[0018] In this embodiment, the number of elastic arms can be set as needed, but at least two elastic arms can be divided into two symmetrically arranged groups, thereby simplifying the structure of the non-metallic bracket and reducing the processing cost of the non-metallic bracket.

[0019] In any of the above embodiments, optionally, the number of the elastic arms is two, and / or the elastic arms and the bracket portion are an integrated structure.

[0020] In this embodiment, there are two elastic arms, and the two elastic arms of the bracket portion are roughly K-shaped, thereby simplifying the structure of the non-metallic bracket. During processing, the elastic arms and the bracket portion can be integrally formed using a mold, so that the elastic arms and the bracket portion form a one-piece structure, thereby ensuring the connection strength between the two.

[0021] In addition, the slot assembly may further comprise elastic members such as springs, which may ensure the elasticity of the non-metallic bracket.

[0022] In any of the above embodiments, optionally, the direction in which the electronic card is inserted into the card insertion channel is the card insertion direction, and the symmetry axes of the two groups of elastic arms are parallel to or perpendicular to the card insertion direction.

[0023] In this embodiment, the two groups of elastic arms can be symmetrically arranged along the card insertion direction, or symmetrically arranged along a symmetry axis perpendicular to the card insertion direction, as long as the elasticity can be ensured.

[0024] In any of the above embodiments, optionally, a guide surface is provided on the side of the bracket portion close to the first socket, and the guide surface extends obliquely from the side close to the first socket to the side away from the first socket along the radial direction of the card insertion channel toward a direction away from the bracket portion.

[0025] In this embodiment, the guide surface allows the electric card to more conveniently and quickly push the non-metallic bracket to move to the second position, thereby making the insertion process of the electric card smoother and faster.

[0026] In any of the above embodiments, optionally, the slot assembly further includes: ultrasonic solder, mounted on the outer surface of the slot frame and arranged around the first socket; the ultrasonic solder is arranged in a ring shape around the first socket, and the cross-sectional area of ​​the ultrasonic solder gradually decreases from the slot frame to the direction away from the slot frame.

[0027] In this embodiment, ultrasonic solder can be applied to the outer surface of the slot frame in advance, and then melted using an ultrasonic welder to achieve a connection between the slot frame and the housing. The ultrasonic solder is applied to the side of the slot frame where the first socket is located, and the ultrasonic solder surrounds the first socket. To ensure a secure connection, the ultrasonic solder can be applied around the entire circumference of the first socket. Furthermore, the ultrasonic solder has a structure with a larger bottom and smaller top, meaning that the cross-sectional area of ​​the ultrasonic solder gradually decreases from the slot frame toward the direction away from the slot frame. This ensures that, after the slot assembly is ultrasonically welded to the housing, the welding quality between the two is improved and the connection is more secure.

[0028] In any of the above embodiments, optionally, the cross-sectional area of ​​the ultrasonic solder is triangular or trapezoidal.

[0029] In this embodiment, the cross-sectional area of ​​the ultrasonic solder is triangular or trapezoidal, which can improve the welding quality between the slot assembly and the shell after the slot assembly is installed on the shell by ultrasonic welding, thereby making the connection between the slot assembly and the shell more secure.

[0030] The technical solution of the second aspect of the present application provides an electric energy meter, including the slot assembly provided in the technical solution of the first aspect.

[0031] The electric energy meter provided by the present application includes the slot assembly provided in the technical solution of the first aspect. Therefore, the electric energy meter has all the beneficial effects of the slot assembly provided in the technical solution of the first aspect, which will not be described in detail here.

[0032] In any of the above embodiments, optionally, the electric energy meter further includes: a shell, a slot assembly is installed in the shell by ultrasonic welding, a second socket is provided on the shell, the second socket is provided corresponding to the first socket, and the electric card can be outside the shell and inserted into the shell through the second socket, the first socket and the card insertion channel.

[0033] In this embodiment, the housing is the outer shell structure of the electric energy meter, which is used to accommodate parts such as the slot assembly. The electric card can be inserted into the slot assembly from a second socket outside the housing. When installing the slot assembly in the housing, the slot assembly can be directly welded into the housing, or ultrasonic solder can be installed on the slot rack in advance, and then the slot assembly installed with ultrasonic solder is first installed on the housing. The assembled whole is then placed on an ultrasonic welding machine to use ultrasonic energy to fully contact the ultrasonic solder at the bottom of the slot assembly with the bottom of the housing. Then, by pressing down, the ultrasonic solder on the slot assembly is fused to the housing. After cooling, the ultrasonic solder and the housing are combined. Connecting the slot assembly and the housing by ultrasonic welding makes the connection and installation of the two relatively simple and reliable.

[0034] In any of the above embodiments, optionally, a limiting groove is provided in the housing, and a portion of the slot assembly is limitedly installed in the limiting groove.

[0035] In this embodiment, a limiting groove can be provided in the housing, and the slot assembly can then be installed in the limiting groove. In this way, the slot assembly can be positioned by the limiting groove, thereby preventing the slot assembly from shifting during the installation and fixing process, thereby preventing the slot assembly from being misaligned with the second socket.

[0036] For example, ultrasonic solder can be provided on the slot assembly, and then the slot assembly can be installed in the limiting groove. Thereafter, the whole assembled with the shell and the slot assembly can be placed on an ultrasonic welding machine for ultrasonic welding.

[0037] Of course, ultrasonic solder can also be placed in the limiting groove in advance to achieve ultrasonic welding between the slot assembly and the shell.

[0038] Additional aspects and advantages of the present application will become apparent in the following description or may be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0040] Figure 1 One of the structural schematic diagrams of a slot assembly according to an embodiment of the present application is shown;

[0041] Figure 2 for Figure 1 Cross-sectional view at AA in the middle;

[0042] Figure 3 A second structural diagram of a slot assembly according to an embodiment of the present application is shown;

[0043] Figure 4 One of the structural schematic diagrams of an electric energy meter according to an embodiment of the present application is shown;

[0044] Figure 5 A second structural diagram of an electric energy meter according to an embodiment of the present application is shown;

[0045] Figure 6 A schematic structural diagram of an electric energy meter with an electric card inserted in one embodiment of the present application is shown;

[0046] Figure 7 The third structural diagram of an electric energy meter according to an embodiment of the present application is shown.

[0047] Reference numerals:

[0048] 100 slot assembly, 200 electric energy meter, 1 slot rack, 12 card insertion channels, 14 first sockets, 16 accommodating cavity, 2 non-metallic brackets, 22 bracket parts, 222 guide surfaces, 24 elastic arms, 3 ultrasonic solder, 4 shells, 42 limit grooves, 44 second sockets, 5 electric cards. DETAILED DESCRIPTION

[0049] In order to more clearly understand the above-mentioned objects, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other in the absence of conflict.

[0050] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0051] Refer to the following Figures 1 to 7 To describe the slot assembly and the electric energy meter in the embodiments of the present application.

[0052] like Figures 1 to 7As shown, an embodiment of the first aspect of the present application provides a slot assembly 100 for an electric energy meter 200, which includes an electric card 5. The slot assembly 100 includes a slot frame 1 and a non-metallic bracket 2. The slot frame 1 includes a card insertion channel 12 and a first socket 14 connected to the card insertion channel 12, and the electric card 5 can be inserted into the card insertion channel 12 through the first socket 14. The non-metallic bracket 2 is installed in the slot frame 1 and can move between a first position and a second position along the radial direction of the card insertion channel 12. When the electric card 5 is not inserted into the card insertion channel 12, the non-metallic bracket 2 is in the first position, and at least a part of the non-metallic bracket 2 extends into the card insertion channel 12. When the electric card 5 is inserted into the card insertion channel 12, the non-metallic bracket 2 can move from the first position to the second position and can squeeze the electric card 5 in the card insertion channel 12.

[0053] The slot assembly 100 provided in the present application can be specifically used for an electric energy meter 200, which can be inserted with an electric card 5 to achieve electricity management. The slot assembly 100 provides a card insertion channel 12 for the electric energy meter 200. Specifically, the slot assembly 100 in the present application includes a slot frame 1 and a non-metallic bracket 2. The slot frame 1 is provided with a card insertion channel 12 and a first socket 14 for inserting the power supply card 5. The non-metallic bracket 2 is installed on the slot frame 1 and is located on the side of the card insertion channel 12 arranged radially. The non-metallic bracket 2 is elastic and can move between a first position and a second position along the radial direction of the card insertion channel 12. Before the card is inserted, the non-metallic bracket 2 is in the first position, that is, the initial position. During card insertion, the non-metallic bracket 2, squeezed by the electrical card 5, moves radially along the card insertion channel 12 to a second position. In the second position, the non-metallic bracket 2 is deformed, generating a rebound force that compresses the electrical card 5. This rebound force compresses the electrical card 5, thereby clamping the electrical card 5 in place and preventing it from falling. This structure, by providing an elastic bracket, ensures smooth insertion and removal of the electrical card 5 while also increasing the retention force on the electrical card 5, preventing it from falling. Furthermore, due to the relatively low hardness of the non-metallic bracket 2, this structure reduces wear on the electrical card 5 during card insertion, thereby protecting the electrical card 5 and preventing it from failing after long-term use. Furthermore, the non-metallic bracket 2 is more affordable than metal brackets, thereby reducing the cost of the slot assembly 100.

[0054] In any of the above embodiments, optionally, Figure 2 As shown, the non-metallic bracket 2 is located on one side of the card insertion channel 12 along the radial direction of the card insertion channel 12. When the non-metallic bracket 2 is in the first position, at least part of the non-metallic bracket 2 abuts against the inner wall of the card insertion channel 12 on the other side of the radial direction of the card insertion channel 12.

[0055] In this embodiment, the non-metallic bracket 2 is located on one side of the card insertion channel 12. When the non-metallic bracket 2 is in the first position, it abuts the inner wall of the other side of the card insertion channel 12. This allows the non-metallic bracket 2 to block the card insertion channel 12 when no electronic card 5 is inserted, thereby reducing the probability of external dust, moisture, etc. entering the card insertion channel 12. This arrangement, by blocking the card insertion channel 12 with the non-metallic bracket 2, can improve the waterproof and dustproof performance of the entire slot assembly 100.

[0056] Among them, such as Figure 2 and Figure 3 As shown, a receiving cavity 16 is provided within the slot frame 1. The receiving cavity 16 is located on one side of the card insertion channel 12 along a radial direction thereof. The receiving cavity 16 communicates with the card insertion channel 12. A non-metallic bracket 2 is mounted within the receiving cavity 16 and at least partially inserted into the card insertion channel 12. The non-metallic bracket 2 is movable along the radial direction of the card insertion channel 12 between a first position and a second position.

[0057] In any of the above embodiments, optionally, the non-metallic bracket 2 includes a plastic bracket.

[0058] In this embodiment, the plastic bracket has a low cost and is not easily scratched by the electric card 5 , thereby making the electric card 5 more durable.

[0059] In any of the above embodiments, the non-metallic bracket 2 can optionally undergo elastic deformation to move from the first position to the second position. The non-metallic bracket 2 can undergo elastic deformation under the action of the electrical card 5, thereby moving from the first position to the second position. This allows the non-metallic bracket 2 to be in an elastically deformed state in the second position, thereby clamping the electrical card 5 through its resilience, preventing it from falling. Of course, the non-metallic bracket 2 can also be configured as a non-elastic bracket, in which case the elastic force can be provided by a spring or the like.

[0060] In any of the above embodiments, optionally, Figure 4 and Figure 7 As shown, the non-metallic bracket 2 includes: a bracket portion 22, which is installed in the slot frame 1 and is located on one side of the card insertion channel 12 along the radial direction of the card insertion channel 12; at least two elastic arms 24, which are arranged on the side of the bracket portion 22 away from the card insertion channel 12; one end of the elastic arm 24 is connected to the bracket portion 22, and the other end of the elastic arm 24 is suspended and extends obliquely in a direction away from the bracket portion 22.

[0061] In this embodiment, the non-metallic holder 2 comprises a holder portion 22 and at least two elastic arms 24. The holder portion 22 is used to contact the electrical card 5 to press the electrical card 5, thereby providing a clamping force to the electrical card 5. The elastic arms 24 are arranged to ensure the elasticity of the non-metallic holder 2, so that the non-metallic holder 2 can be elastically deformed between the first position and the second position. The inclined free end of the elastic arm 24 can ensure that the elastic arm 24 has better elasticity.

[0062] In any of the above embodiments, optionally, as shown in Figure 4 and Figure 7 , the at least two elastic arms 24 are divided into two groups and are arranged on the holder portion 22 in axial symmetry.

[0063] In this embodiment, the number of elastic arms 24 can be arranged as needed, but at least two elastic arms 24 can be divided into two groups arranged symmetrically, which can simplify the structure of the non-metallic holder 2 and reduce the processing cost of the non-metallic holder 2.

[0064] In any of the above embodiments, optionally, as shown in Figure 4 and Figure 7 , the number of elastic arms 24 is two, and / or the elastic arm 24 and the holder portion 22 are an integral structure.

[0065] In this embodiment, the elastic arm 24 is 2, and the two elastic arms 24 of the holder portion 22 are substantially K-shaped, which makes the structure of the non-metallic holder 2 relatively simple. Among them, when processing, the elastic arm 24 and the holder portion 22 can be integrally formed by a mold, so that the elastic arm 24 and the holder portion 22 are an integral structure, which can ensure the connection strength between the two.

[0066] In addition, the slot assembly 100 can also include a spring or the like elastic member, and the spring can ensure the elasticity of the non-metallic holder 2. At this time, the elastic arm 24 can also not be arranged on the non-metallic holder 2.

[0067] In any of the above embodiments, optionally, as shown in Figure 2 , Figure 6 and Figure 7 , the direction of the electrical card 5 inserted into the card slot 12 is the card insertion direction, and the symmetry axis of the two groups of elastic arms 24 is parallel to or perpendicular to the card insertion direction.

[0068] In this embodiment, the two groups of elastic arms 24 can be symmetrically arranged along the card insertion direction, or can be symmetrically arranged along the symmetry axis perpendicular to the card insertion direction, as long as the elasticity can be ensured.

[0069] In any of the above embodiments, optionally, as shown in Figure 2 and Figure 7As shown, a guide surface 222 is provided on the side of the bracket portion 22 close to the first socket 14 , and the guide surface 222 extends obliquely from the side close to the first socket 14 to the side away from the first socket 14 along the radial direction of the card insertion channel 12 toward a direction away from the bracket portion 22 .

[0070] In this embodiment, the guide surface 222 allows the electric card 5 to more conveniently and quickly push the non-metallic bracket 2 to move to the second position, thereby making the insertion process of the electric card 5 smoother and faster.

[0071] In any of the above embodiments, optionally, Figure 1 and Figure 2 As shown, the slot assembly 100 also includes: ultrasonic solder 3, which is installed on the outer surface of the slot frame 1 and arranged around the first socket 14; the ultrasonic solder 3 is arranged in a ring shape around the first socket 14, and the cross-sectional area of ​​the ultrasonic solder 3 gradually decreases from the slot frame 1 to the direction away from the slot frame 1.

[0072] In this embodiment, ultrasonic solder 3 can be pre-applied on the outer surface of the slot frame 1, and then melted using an ultrasonic welder to achieve a connection between the slot frame 1 and the housing 4. The ultrasonic solder 3 is disposed on one side of the slot frame 1 where the first socket 14 is located, and surrounds the first socket 14. To ensure a secure connection, the ultrasonic solder 3 can be applied around the entire circumference of the first socket 14. Furthermore, the ultrasonic solder 3 has a larger bottom and smaller top structure, meaning that the cross-sectional area of ​​the ultrasonic solder 3 gradually decreases from the slot frame 1 as it moves away from the slot frame 1. This ensures that, after the slot assembly 100 is ultrasonically welded to the housing 4, the weld quality between the two is improved and the connection is more secure.

[0073] In any of the above embodiments, optionally, Figure 1 and Figure 2 As shown, the cross-sectional area of ​​the ultrasonic solder 3 is triangular or trapezoidal.

[0074] In this embodiment, the cross-sectional area of ​​the ultrasonic solder 3 is triangular or trapezoidal, which enables the slot assembly 100 to be installed on the shell 4 by ultrasonic welding, and the welding quality between the two is better, thus making the connection between the slot assembly 100 and the shell 4 more secure.

[0075] like Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown, an embodiment of the second aspect of the present application provides an electric energy meter 200, including the slot assembly 100 provided in the embodiment of the first aspect.

[0076] The electric energy meter 200 provided in this application includes the slot assembly 100 provided in the first embodiment. Therefore, the electric energy meter 200 has all the beneficial effects of the slot assembly 100 provided in the first embodiment, which will not be described in detail here.

[0077] In any of the above embodiments, optionally, Figures 1 to 7 As shown, the electric energy meter 200 also includes: a shell 4, a slot assembly 100 is installed in the shell 4 by ultrasonic welding, a second socket 44 is provided on the shell 4, and the second socket 44 is provided corresponding to the first socket 14. The electric card 5 can be inserted into the shell 4 from the outside of the shell 4 through the second socket 44, the first socket 14 and the card insertion channel 12.

[0078] In this embodiment, the housing 4 is the outer shell structure of the electric energy meter 200 and is used to accommodate parts such as the slot assembly 100. The electric card 5 can be inserted into the slot assembly 100 through the second socket 44 outside the housing 4. When installing the slot assembly 100 in the housing 4, the slot assembly 100 can be directly welded to the housing 4, or ultrasonic solder 3 can be installed on the slot frame 1 in advance, and then the slot assembly 100 installed with the ultrasonic solder 3 is first installed on the housing 4. The assembled whole is then placed on an ultrasonic welding machine, so that the ultrasonic solder 3 at the bottom of the slot assembly 100 is fully contacted with the bottom of the housing 4 using ultrasonic energy. Then, by pressing downward, the ultrasonic solder 3 on the slot assembly 100 is fused to the housing 4. After cooling, the ultrasonic solder 3 and the housing 4 are combined. Connecting the slot assembly 100 and the housing 4 through ultrasonic welding makes the connection and installation of the two relatively simple and reliable.

[0079] In any of the above embodiments, optionally, Figure 4 and Figure 5 As shown, a limiting groove 42 is provided in the housing 4 , and a portion of the slot assembly 100 is installed in the limiting groove 42 by ultrasonic welding.

[0080] In this embodiment, a limiting groove 42 can be provided in the housing 4, and the slot assembly 100 can then be installed in the limiting groove 42. In this way, the slot assembly 100 can be positioned by the limiting groove 42, thereby preventing the slot assembly 100 from shifting during the installation and fixing process, thereby preventing the slot assembly 100 from being misaligned with the second socket 44.

[0081] For example, ultrasonic solder 3 may be provided on the slot assembly 100 , and then the slot assembly 100 may be installed in the limiting groove 42 , after which the whole assembled with the shell 4 and the slot assembly 100 may be placed on an ultrasonic welder for ultrasonic welding.

[0082] Of course, ultrasonic solder 3 may also be placed in the limiting groove 42 in advance to achieve ultrasonic welding between the slot assembly 100 and the shell 4 .

[0083] Additional aspects and advantages of the present application will become apparent in the following description or may be learned through practice of the present application.

[0084] The following describes a CPU slot assembly of a card-type electric energy meter in a specific embodiment, wherein a user inserts a CPU electric card (a smart electric card).

[0085] The CPU slot assembly is an indispensable part of the local smart electricity meter. Its main function is to correct the card insertion deflection, making it easier for users to insert and remove the card smoothly and ensuring effective data reading and writing.

[0086] Common methods for securing the CPU slot to the outer casing of electricity meters include snap-on fastening and screw-on fastening. Snap-on fastening can easily cause the slot to fall out if dropped, resulting in low reliability. Screw fastening offers high reliability but carries high manufacturing and labor costs, making it unsuitable for mass production. Furthermore, in these solutions, the CPU card can easily wear out when inserted into the slot, and they require a metal bracket, increasing the cost of the electricity meter.

[0087] Among them, the commonly used energy meter CPU slot component structures are as follows:

[0088] Single-slot structure: There are no other parts inside to hold the CPU card. If the user inserts the card smoothly, the CPU card may fall out, resulting in a poor user experience.

[0089] Hook structure: The CPU slot is fixed with hooks at the upper and lower ends. The assembly is simple, but due to the structural limitations of the slot, the hook structure is small. When the product falls, the hook is easy to pop open, causing the slot to fall off. The reliability is low and there are quality risks.

[0090] Screw locking structure: The CPU slot is fixed with screws at the upper and lower ends. This assembly method is firm, but it increases the cost of screws, consumes more man-hours, and is costly, making it unsuitable for mass production.

[0091] like Figures 1 to 7 As shown, this embodiment provides a new CPU slot assembly structure for an electricity meter, wherein a slot bracket (i.e., a non-metallic bracket 2) is added inside the slot to enhance the holding force of the CPU card, and a circle of triangular ultrasonic welding wire (ultrasonic solder 3) is added around the bottom of the slot to be fixed to the outer shell by ultrasonic welding, which not only saves the cost of screws and assembly labor, but also ensures the welding firmness of the slot, thereby improving product quality and production efficiency, and simultaneously reducing process and labor costs.

[0092] The electric energy meter of this embodiment specifically includes a housing, a plastic bracket, and a slot frame. During assembly, the plastic bracket can be installed on the left inner side of the slot frame to form a slot assembly, which is then assembled into the housing. A limit frame can be added to the bottom of the housing to limit the slot assembly.

[0093] Among them, a circle of triangular ultrasonic welding wire is added at the bottom of the slot frame. When assembling the slot frame, the slot frame can be directly placed in the limit frame inside the shell, and then placed in the ultrasonic welding machine for ultrasonic welding. The ultrasonic energy is used to fully contact the triangular ultrasonic welding wire at the bottom of the slot frame with the bottom of the shell, and then the triangular ultrasonic welding wire at the bottom of the slot frame is fused to the bottom of the shell by pressing down. After cooling, the slot frame assembly and the shell are combined together. The operation is simple and firm.

[0094] Among them, the plastic bracket is a cantilever structure. When the CPU card is inserted into the slot frame and contacts the plastic bracket, the cantilever on the right side of the plastic bracket is stressed, which ensures smooth insertion and removal of the CPU card while also increasing the holding force to prevent the CPU card from falling.

[0095] This type of slot assembly and energy meter improves the holding force of the CPU card, saves the cost of screws and assembly time, and the ultrasonic welding has high strength and firm bonding, which improves product quality and production efficiency, and simultaneously reduces process and labor costs.

[0096] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0097] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A slot assembly, characterized in that: Used for an electric energy meter, the electric energy meter includes an electric card, and the slot assembly includes: a slot frame, the slot frame comprising a card insertion channel and a first socket communicating with the card insertion channel, the electrical card being capable of being inserted into the card insertion channel through the first socket; A non-metallic bracket is installed in the slot frame and can move between a first position and a second position along the radial direction of the card insertion channel. When the electrical card is not inserted into the card insertion channel, the non-metallic bracket is in the first position, and at least part of the non-metallic bracket extends into the card insertion channel. When the electrical card is inserted into the card insertion channel, the non-metallic bracket can move from the first position to the second position and can squeeze the electrical card in the card insertion channel.

2. The socket assembly according to claim 1, wherein: The non-metallic bracket is located on one side of the card insertion channel along the radial direction of the card insertion channel. When the non-metallic bracket is in the first position, at least part of the non-metallic bracket abuts against the inner wall of the card insertion channel on the other side of the card insertion channel along the radial direction of the card insertion channel.

3. The socket assembly according to claim 1, wherein: The non-metallic bracket includes a plastic bracket; and / or The non-metallic bracket is elastically deformable to move from the first position to the second position.

4. The socket assembly according to any one of claims 1 to 3, wherein: The non-metallic bracket includes: a bracket portion, installed in the slot frame and located on one side of the card insertion channel along the radial direction of the card insertion channel; At least two elastic arms are provided on a side of the bracket portion facing away from the card insertion channel; One end of the elastic arm is connected to the bracket portion, and the other end of the elastic arm is suspended and extends obliquely in a direction away from the bracket portion.

5. The socket assembly according to claim 4, wherein: At least two of the elastic arms are divided into two groups and are arranged axially symmetrically on the bracket portion.

6. The socket assembly according to claim 4, wherein: The number of the elastic arms is two, and / or the elastic arms and the bracket portion are an integrated structure; and / or The direction in which the electric card is inserted into the card insertion channel is the card insertion direction, and the symmetry axes of the two groups of elastic arms are parallel to or perpendicular to the card insertion direction.

7. The socket assembly according to claim 4, wherein: A guide surface is provided on a side of the bracket portion close to the first socket, and the guide surface extends obliquely from the side close to the first socket to the side away from the first socket along the radial direction of the card insertion channel toward a direction away from the bracket portion.

8. The socket assembly according to any one of claims 1 to 3, wherein: Also includes: Ultrasonic solder is installed on the outer surface of the slot frame and is arranged around the first socket; The ultrasonic solder is arranged in a ring shape around the first socket, and the cross-sectional area of ​​the ultrasonic solder gradually decreases from the slot frame to a direction away from the slot frame.

9. An electric energy meter, characterized in that: Comprising the socket assembly according to any one of claims 1 to 8.

10. The electric energy meter according to claim 9, characterized in that: Also includes: a housing, wherein the slot assembly is mounted in the housing by ultrasonic welding; a second socket is provided on the housing, and the second socket is provided corresponding to the first socket; the electrical card can be inserted into the housing from outside the housing through the second socket, the first socket, and the card insertion channel; A limiting groove is provided in the shell, and a portion of the slot assembly is limited in the limiting groove.

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