A data line and a data line connection structure of a multi-loop table

Abstract

The application provides a data line and a data line connection structure of a multi-loop meter, and relates to the technical field of electrical devices. The data line is used for connecting any two electric meters in a host and multiple slave machines of a multi-loop meter. The data line comprises a first end head, a second end head and a connecting line. The first end head is provided with a connecting plug pin and a first limiting piece. The second end head is provided with a connecting plug female and a second limiting piece. The connecting line is connected between the first end head and the second end head, and is used for realizing signal transmission between the connecting plug pin and the connecting plug female. By using the data line, the multi-loop meter can be used without space limitation, the data line can be kept in good connection between the first electric meter and the second electric meter through the first limiting piece and the second limiting piece, stable signal transmission can be realized between the first electric meter and the second electric meter, the data line is not prone to loosening due to external factors, and the reliability of the multi-loop meter is ensured.

Description

Technical Field

[0001] This application relates to the technical field of electrical devices, and more particularly to a data cable and a data cable connection structure for a multi-circuit meter. Background Technology

[0002] Multi-loop energy meters (MLMs) typically consist of a master unit and multiple slave units. MLMs use a method where the master unit controls the multiple slave units for energy metering. Therefore, signal transmission is required between the slave units and the master unit. Usually, the master unit and the slave units transmit signals through a direct connection, or multiple slave units are connected sequentially with one of them directly connected to the master unit to achieve signal transmission between the multiple slave units and the master unit.

[0003] However, sometimes, due to space constraints, the slave unit cannot be directly connected to the master unit, or the slave unit cannot be directly connected to the slave unit, which makes the installation and use of multi-circuit energy meters difficult. Utility Model Content

[0004] This application provides a data cable and a data cable connection structure for a multi-loop meter to solve the problem of space limitations during the installation and use of multi-loop meters.

[0005] In a first aspect, this application provides a data cable for connecting the master unit of a multi-circuit meter to any two of the multiple slave units, each meter having a jack and pins, and the two meters being designated as a first meter and a second meter. The data cable includes a first terminal, a second terminal, and connecting wires.

[0006] The first end is provided with a connecting pin, which is used to connect to the socket on the first meter; the first end is also provided with a first limiting member, which is used to cooperate with the structure on the side where the socket of the first meter is located to limit the first end and the first meter.

[0007] The second end is provided with a connecting nut, which is used to connect with the pin on the second meter; the second end is also provided with a second limiting member, which is used to cooperate with the structure on the side where the pin of the second meter is located to limit the second end and the second meter.

[0008] The connecting wire is connected between the first end and the second end to realize signal transmission between the connecting pin and the connecting nut.

[0009] The data cable provided in the first aspect connects to a meter at each of its first and second ends. This allows two meters that cannot be directly connected due to space constraints to communicate via the data cable, breaking spatial limitations and improving the spatial applicability of multi-circuit meters. A first limiting component restricts the connection between the first end and the first meter, preventing loosening. Similarly, a second limiting component restricts the connection between the second end and the second meter, ensuring a secure connection. Therefore, the data cable maintains a good connection with both the first and second meters, enabling stable signal transmission between them and preventing loosening due to external factors, thus guaranteeing the reliability of multi-circuit meter use.

[0010] In one possible design, a first connecting hole is provided on the side where the first meter's socket is located. The first limiting member is configured as a first latching hook, which includes a first extension and a first hook section connected to each other; when the connecting pin is inserted into the socket of the first meter, the first extension passes through the first connecting hole, and the first hook section abuts against the wall surface of the first connecting hole at the end away from the first end.

[0011] By using the above solution, the first limiting member is set as the first buckle, which cooperates with the original first connecting hole on the side where the first meter's socket is located, thereby limiting the first end and the first meter. Specifically, the first hook section abuts against the wall surface at the end of the first connecting hole away from the first end, restricting the first end to the state where the first connecting pin is inserted into the socket of the first meter, making it difficult for external force to separate the first end from the first meter.

[0012] In one possible design, a second latching hook is provided on the side where the pin of the second meter is located. The second latching hook includes a second extension section and a second hook section connected together. The second limiting member is configured as a second connecting hole; when the connecting nut is inserted into the pin of the second meter, the second extension section passes through the second connecting hole, and the second hook section abuts against the wall surface of the second connecting hole at the end away from the second meter.

[0013] By using the above solution, the second limiting member is set as the second connecting hole. The second limiting hole can cooperate with the original second buckle hook on the second meter to limit the second end and the second meter, making it difficult for external force to separate the connecting nut from the pin of the second meter from the plugged state.

[0014] In one possible design, the first end is also provided with a first lead-sealing hole, which is connected to at least one hole structure on the first meter for the lead-sealing wire to pass through.

[0015] The above scheme achieves lead sealing between the first terminal and the first meter by passing the lead seal wire sequentially through the first lead seal hole and a hole structure on the first meter. This prevents unauthorized personnel from deliberately damaging the first terminal, which could lead to communication problems, and ensures the reliability and stability of the connection between the first meter and the second meter.

[0016] In one possible design, the second end is also provided with a second lead-sealing hole, which is connected to at least one hole structure on the second meter for the lead-sealing wire to pass through.

[0017] The above scheme achieves lead sealing between the second terminal and the second meter by passing the lead-sealed wire sequentially through the second lead-sealed hole and a hole structure on the second meter. This prevents unauthorized personnel from deliberately damaging the second terminal, which could lead to communication problems, and ensures the reliability and stability of the connection between the first meter and the second meter.

[0018] In one possible design, the second lead-sealing hole coincides with the second connecting hole.

[0019] With the above solution, only one hole needs to be made at the second end, which can be used for both the lead sealing wire to pass through and the second buckle hook connection, achieving the effect of multiple uses in one structure and saving the processing cost of the data cable.

[0020] In one possible design, the first meter has a groove, and the socket is located on the bottom wall of the groove; the first end has a boss, and the connecting pin is located on the top wall of the boss. When the connecting pin is inserted into the socket of the first meter, the top wall of the boss abuts against the bottom wall of the groove.

[0021] The above solution, by providing a boss on the first end, allows the boss to insert into the groove of the first meter when the connecting pin is plugged in. This seals the groove, reducing the entry of moisture and impurities that could affect the signal stability between the connecting pin and the socket. Furthermore, the top wall of the boss abuts against the bottom wall of the groove, and the boss and groove work together to completely isolate the different pins of the connecting pin, preventing the pin from being exposed between the top wall of the boss and the bottom wall of the groove. This would prevent excessively small electrical clearances and creepage distances between the pins, thus avoiding signal interference. Therefore, although the above design is simple, it effectively reduces signal interference and increases the signal stability between the first and second meters in at least two ways.

[0022] In one possible design, the first end has a first surface, with a boss protruding from the first surface. When the connecting pin is plugged into the socket of the first meter, the first surface abuts against the outer wall of the first meter.

[0023] By having the first surface abut against the outer wall of the first meter, the problem of moisture and impurities in the environment entering through the gap between the first end and the outer wall of the first meter is reduced or even avoided. This reduces the probability of contaminating the connecting pins and the sockets on the first meter, and improves the stability and reliability of signal transmission between the data line and the first meter.

[0024] In one possible design, the second meter has a flange around the pin; the second end has a partition around the connecting nut, and a receiving groove is formed between the partition and the connecting nut. When the connecting nut is inserted into the pin of the second meter, the flange is located in the receiving groove, and the partition abuts against the outer wall of the second meter.

[0025] By having the flange located within the receiving groove and the barrier abutting against the outer wall of the second meter, a double barrier is provided to prevent impurities from the environment from entering between the connecting nut and the pin, thereby improving the stability and reliability of signal transmission between the data line and the second meter.

[0026] Secondly, this application also provides a data line connection structure for a multi-circuit meter, including multiple meters and data lines of any of the above-described embodiments.

[0027] Multiple electricity meters include one main unit and multiple slave units, and each electricity meter is equipped with a socket and pins.

[0028] The connecting pin at the first end of the data cable is inserted into the socket of the first meter, and the first limiting member on the first end cooperates with the structure on the side where the socket of the first meter is located to achieve the limiting of the first end and the first meter; the connecting nut at the second end of the data cable is inserted into the pin on the second meter, and the second limiting member on the second end cooperates with the structure on the side where the pin of the second meter is located to achieve the limiting of the second end and the second meter; the first meter and the second meter are any two meters from a plurality of meters.

[0029] The beneficial effects of the data line connection structure of the multi-loop table provided in the second aspect and the various possible designs of the second aspect can be found in the first aspect and the various possible implementations of the first aspect, and will not be repeated here. Attached Figure Description

[0030] Figure 1 This is a first-view structural schematic diagram of a data cable provided in an embodiment of this application.

[0031] Figure 2 This is a second-view structural schematic diagram of a data cable provided in an embodiment of this application.

[0032] Figure 3 This is a schematic diagram of a structure in which a first terminal is plugged into a first meter, as provided in an embodiment of this application.

[0033] Figure 4 This is a partial cross-sectional view of a first terminal being plugged into a first meter, as provided in an embodiment of this application.

[0034] Figure 5 This is a schematic diagram of a structure for connecting a second terminal to a second meter, as provided in an embodiment of this application.

[0035] Figure 6 This is a partial cross-sectional schematic diagram showing the connection between a second terminal and a second meter, as provided in an embodiment of this application.

[0036] Explanation of reference numerals in the attached drawings: 100, data cable; 110, first end; 111, connecting pin; 112, first limiting member; 113, first snap hook; 114, first extension section; 115, first hook section; 116, first lead-sealed hole; 117, boss; 118, first surface; 120, second end; 121, connecting nut; 122, second connecting hole; 123, second lead-sealed hole; 124, partition; 125, receiving groove; 130, connecting wire; 200, first meter; 210, socket; 220, first connecting hole; 230, groove; 300, second meter; 310, pin; 320, second snap hook; 321, second extension section; 322, second hook section; 330, flange. Detailed Implementation

[0037] 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.

[0038] 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 pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.

[0039] 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.

[0040] 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 mean: A exists, A and B exist simultaneously, or B exists. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0041] 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 the data line or multi-loop meter data line connection structure of this application. For example, in the description of this application, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are 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.

[0042] 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.

[0043] In the description of this application, unless otherwise stated, "multiple" means two or more (including two), and similarly, "multiple groups" means two or more (including two groups).

[0044] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, "connection" or "linkage" in mechanical structures can refer to a physical connection, such as a fixed connection, for example, a connection secured by screws, bolts, or other spacers; 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 based on the specific circumstances. In circuit structures, "connection" or "linkage" can refer not only to a physical connection but also to an electrical connection or a signal connection. For example, it can be a direct connection, i.e., a physical connection, or an indirect connection through at least one intermediate component, as long as the circuit is connected; it can also refer to the internal connection of two components. Signal connection can refer not only to signal connection through a circuit but also to signal connection through a medium, such as radio waves. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0045] A multi-loop meter generally includes at least one master unit and multiple slave units. Hereinafter, both the master unit and the slave units will be referred to as the meter. Where space permits, one master unit and multiple slave units are connected in a row in a certain order to achieve signal transmission. Specifically, the first side of the meter is equipped with pins and the second side is equipped with sockets. In two adjacent meters, the pins of one meter are connected to the sockets of the other meter to achieve the structural splicing and electrical connection of the two meters.

[0046] However, as the application of electricity becomes more and more widespread, the number of meters contained in a multi-circuit meter is increasing, which puts higher and higher demands on installation space. Therefore, the installation and use of multi-circuit meters are often limited by space.

[0047] This application provides a data cable and a data cable connection structure for a multi-loop meter to solve the problem of space limitations during the installation and use of multi-loop meters. The following describes the data cable and data cable connection structure for the multi-loop meter provided in the embodiments of this application.

[0048] Firstly, such as Figures 1 to 6 As shown, this application provides a data cable 100, which is used to connect the host of a multi-circuit meter to any two of the multiple slave meters. Each meter is provided with a socket 210 and a pin 310. The two meters are the first meter 200 and the second meter 300, respectively.

[0049] like Figure 1 and Figure 2As shown, the data cable 100 includes a first end 110, a second end 120, and a connecting wire 130. The first end 110 is provided with a connecting pin 111, which is used to connect to the socket 210 on the first meter 200 (see reference). Figure 4 The first end 110 is also provided with a first limiting member 112, which is used to cooperate with the structure on the side where the socket 210 of the first meter 200 is located, so as to limit the first end 110 and the first meter 200; the second end 120 is provided with a connecting nut 121, which is used to connect with the pin 310 on the second meter 300 (e.g., Figure 6 (As shown); the second end 120 is also provided with a second limiting member, which is used to cooperate with the structure on the side where the pin 310 of the second meter 300 is located to realize the limiting of the second end 120 and the second meter 300; the connecting line 130 is connected between the first end 110 and the second end 120 to realize the signal transmission between the connecting pin 111 and the connecting nut 121.

[0050] In this embodiment, the first meter 200 and the second meter 300 can both be a master or slave unit in a multi-circuit meter, and this application does not limit this.

[0051] The first end 110 and the second end 120 of the data cable 100 are each connected to an electricity meter. This allows two electricity meters that cannot be directly connected due to space constraints to achieve signal communication through the connection of the data cable 100, breaking the space limitation and improving the spatial applicability of multi-circuit electricity meters.

[0052] For example, if the space for installing multiple meters is insufficient in the horizontal direction, the multiple meters can be installed in two rows. The first end 110 is connected to the last meter in the first row, and the second end is connected to the first meter in the second row, thereby realizing signal transmission between the last meter in the first row and the first meter in the second row.

[0053] Understandably, there are many other possible layouts for the installation of multi-circuit meters. Regardless of the layout, any two meters that cannot be directly connected can be connected via the aforementioned data cable 100 if they require signal transmission.

[0054] Both the first end 110 and the second end 120 can be of any shape, as long as the first end 110 can be provided with a connecting pin 111 that meets the requirements, and the second end 120 can be provided with a connecting nut 121 that meets the requirements. The connecting pin 111 meets the requirements because it can be plugged into the corresponding socket 210 on the first meter 200 to achieve signal transmission. The connecting nut 121 meets the requirements because it can be plugged into the corresponding pin 310 on the second meter 300 to achieve signal transmission.

[0055] The first limiting member 112 is used to cooperate with the structure on the side where the socket 210 of the first meter 200 is located to limit the distance between the first end 110 and the first meter 200. The first limiting member 112 can be any structure, as long as the first limiting member 112 can cooperate with the structure on the side where the socket 210 of the first meter 200 is located to limit the distance between the first end 110 and the first meter 200.

[0056] Similarly, the structure of the second limiting member only needs to be able to cooperate with the structure on the side where the pin 310 of the second meter 300 is located to limit the second end 120 and the second meter 300.

[0057] Understandably, regardless of the structure of the first limiting member 112 and the second limiting member, the first limiting member 112 limits the connection between the first terminal 110 and the first meter 200, making it less likely for the connection between the first terminal 110 and the first meter 200 to become loose. Similarly, the second limiting member limits the connection between the second terminal 120 and the second meter 300, making it less likely for the connection between the second terminal 120 and the second meter 300 to become loose. Therefore, the data line 100 can maintain a good connection with both the first meter 200 and the second meter 300, enabling stable signal transmission between them. This prevents the connection from becoming loose due to external factors and ensures the reliability of the multi-circuit meter.

[0058] The following provides an example illustrating the structure of the first limiting member 112 and the second limiting member.

[0059] like Figure 3 and Figure 4 As shown, in one possible design, when the first connection hole 220 is provided on the side where the socket 210 of the first meter 200 is located, the first limiting member 112 is configured as a first latch hook 113. The first latch hook 113 includes a first extension section 114 and a first hook section 115 connected to each other. When the connecting pin 111 is inserted into the socket 210 of the first meter 200, the first extension section 114 passes through the first connection hole 220, and the first hook section 115 abuts against the wall surface of the first connection hole 220 away from the first end 110.

[0060] By utilizing the structure of the first connecting hole 220, the first limiting member 112 is configured as the first buckle hook 113, which can cooperate with the first connecting hole 220 to limit the first end 110 and the first meter 200. Specifically, the first hook section 115 abuts against the wall surface of the first connecting hole 220 away from the first end 110, restricting the first end 110 to the state where the first connecting pin 111 is inserted into the socket 210 of the first meter 200, making it difficult for external force to separate the first end 110 from the first meter 200.

[0061] More specifically, the first buckle hook 113 can be in an "L" shape. The end of the first buckle hook 113 connected to the first end 110 is the first extension 114, and the part that is set at an angle to the first extension 114 is the first hook section 115. The end of the first hook section 115 away from the first extension 114 can be provided with a chamfer or a rounded corner so that the first buckle hook 113 can smoothly enter the first connecting hole 220 under the guidance of the chamfer or rounded corner.

[0062] When connecting the first end 110 to the first meter 200, the operator holds the first end 110 and inserts the connecting pin 111 into the socket 210 on the first meter 200. Simultaneously, the first latch hook 113 is also located within the first connecting hole 220. During insertion, the end of the first hook section 115 furthest from the first extension section 114 abuts against the wall of the first connecting hole 220. Under the contact of the first hook section 115, the first extension section 114 undergoes elastic deformation. As the first end 110 continues to be inserted, the connecting pin 111 is fully inserted into the socket 210. Simultaneously, the first hook section 115 disengages from the inner wall of the first connecting hole 220, and the first extension section 114 returns to its original shape. Driven by the first extension section 114, the first hook section 115 abuts against the wall of the first connecting hole 220 furthest from the first end 110, thus limiting the connection between the first end 110 and the first meter 200.

[0063] Under the restriction of the first limiting member 112, external shaking, vibration, or forceful pulling will not cause the connecting pin 111 to disengage from the socket 210, thereby improving the stability and reliability of signal transmission between the data line 100 and the first meter 200.

[0064] To remove the first end 110, first use your fingers or tools to push the end of the first hook section 115 away from the first extension section 114, so that the first extension section 114 is deformed. When the first latch hook 113 is completely within the projection range of the first connecting hole 220 along the axial direction, pull the first end 110 outward, so that the connecting pin 111 is disengaged from the socket 210 on the first meter 200.

[0065] Optionally, if a screw hole is provided on the side where the socket 210 is located on the first meter 200, the first limiting member 112 can also be a screw rotatably connected to the first end 110. When the connecting pin 111 is in the plugged-in state with the socket 210 on the first meter 200, the screw on the first end 110 passes through the first end 110 and connects to the screw hole on the first meter 200, thereby limiting the first end 110 and the first meter 200.

[0066] like Figure 5 and Figure 6 As shown, in one possible design, a second latching hook 320 is provided on the side where the pin 310 of the second meter 300 is located. The second latching hook 320 includes a second extension section 321 and a second hook section 322 connected together. The second limiting member is configured as a second connecting hole 122; when the connecting nut 121 is inserted into the pin 310 of the second meter 300, the second extension section 321 passes through the second connecting hole 122, and the second hook section 322 abuts against the wall surface of the second connecting hole 122 away from the second meter 300.

[0067] The structure of the second buckle hook 320 can be the same as or different from that of the first buckle hook 113, as long as the above-mentioned purpose can be achieved.

[0068] By setting the second limiting member as the second connecting hole 122, the second limiting hole can cooperate with the original second buckle hook 320 on the second meter 300 to limit the second end 120 and the second meter 300, making it difficult for external force to separate the connecting nut 121 and the pin 310 of the second meter 300 from the plugged state.

[0069] In some embodiments, the position of the first latch hook 113 on the first end 110 relative to the connecting pin 111 is the same as or substantially the same as the position of the second latch hook 320 on the second meter 300 relative to the pin 310. Simultaneously, the position of the second connecting hole 122 on the second end 120 relative to the connecting nut 121 is the same as or substantially the same as the position of the first connecting hole 220 on the first meter 200 relative to the socket 210. In this way, when space permits, the first meter 200 and the second meter 300 can be directly plugged in and mutually restrained. When space is limited, the first meter 200 and the second meter 300 can also be connected via the data cable 100 and mutually restrained, providing a structural basis for different connection methods of multi-circuit meters and greatly improving the applicability of multi-circuit meters.

[0070] like Figure 1 and Figure 2As shown, in one possible design, the first end 110 is also provided with a first lead-sealing hole 116, which is connected to at least one hole structure on the first meter 200 for allowing the lead-sealing wire to pass through.

[0071] The first lead-sealed hole 116 can be connected to one hole structure on the first meter 200, or it can be connected to multiple hole structures on the first meter 200. The hole structures on the first meter 200 can be existing lead-sealed holes or holes that originally served other functions. The connection can be directly opposite, partially opposite, or not directly opposite, but the lead-sealed wire can pass through other channels between the first end 110 and the first meter 200 and then enter the first lead-sealed hole 116 and at least one hole structure on the first meter 200.

[0072] By passing the lead-sealed wire sequentially through the first lead-sealed hole 116 and a hole structure on the first meter 200, the lead seal is secured to the first terminal 110 and the first meter 200, preventing unauthorized personnel from deliberately damaging the first terminal 110 and causing communication problems, thus ensuring the reliability and stability of the connection between the first meter 200 and the second meter 300.

[0073] For similar reasons, such as Figure 1 and Figure 2 As shown, in one possible design, the second end 120 is also provided with a second lead-sealing hole 123, which is connected to at least one hole structure on the second meter 300 for the lead-sealing wire to pass through.

[0074] Various possible structures in which the second lead-sealed hole 123 connects to at least one hole structure on the second meter 300 can be referred to the hole structure on the first lead-sealed hole 116 and the first meter 200, and will not be described again in this embodiment of the application.

[0075] By passing the lead-sealed wire sequentially through the second lead-sealed hole 123 and a hole structure on the second meter 300, the lead seals on the second terminal 120 and the second meter 300 are secured, preventing unauthorized personnel from deliberately damaging the second terminal 120 and causing communication problems, thus ensuring the reliability and stability of the connection between the first meter 200 and the second meter 300.

[0076] like Figure 1 , Figure 2 and Figure 6 As shown, in one possible design, the second lead-sealing hole 123 coincides with the second connecting hole 122.

[0077] With the above solution, by opening only one hole on the second end 120, the hole can be used for both the lead sealing wire to pass through and the second buckle hook 320 to connect, achieving the effect of one structure serving multiple purposes and saving the processing cost of the data cable 100.

[0078] like Figure 4 As shown, in one possible design, the first meter 200 is provided with a groove 230, and the socket 210 is provided on the bottom wall of the groove 230; the first end 110 is provided with a boss 117, and the connecting pin 111 is provided on the top wall of the boss 117. When the connecting pin 111 is inserted into the socket 210 of the first meter 200, the top wall of the boss 117 abuts against the bottom wall of the groove 230.

[0079] A groove 230 is provided on the first meter 200, and a socket 210 is provided on the bottom wall of the groove 230. This can protect the socket 210 and prevent the first meter 200 from contacting other objects and damaging the end of the socket 210, which would make it difficult to insert the pin 310 or the connecting pin 111.

[0080] The connecting pin 111 is located on the top wall of the boss 117. During the process of inserting the connecting pin 111 into the socket 210, the boss 117 and the groove 230 play a certain guiding role, preventing the connecting pin 111 from being worn or broken due to poor alignment between the connecting pin 111 and the socket 210. Furthermore, by providing a boss 117 on the first end 110, when the connecting pin 111 is inserted into the socket 210 of the first meter 200, the boss 117 can be inserted into the groove 230 of the first meter 200, sealing the groove 230 and reducing the entry of moisture, impurities, etc., into the groove 230, which would affect the signal stability between the connecting pin 111 and the socket 210. Moreover, the top wall of the boss 117 abuts against the bottom wall of the groove 230, and the boss 117 and the groove 230 cooperate to completely isolate the different pins of the connecting pin 111, preventing the connecting pin 111 from being partially exposed between the top wall of the boss 117 and the bottom wall of the groove 230, which would result in excessively small electrical clearance and creepage distance between the pins, leading to signal interference. Therefore, although the above arrangement is simple in structure, it can reduce signal interference and increase the signal stability between the first meter 200 and the second meter 300 in at least two ways.

[0081] In some embodiments, the cross-sectional area of ​​the boss 117 gradually decreases from the end furthest from the top wall to the end closest to the top wall. In this way, during the engagement of the boss 117 with the groove 230, the end of the boss 117 with the smaller cross-sectional area enters the groove 230 first, facilitating the connection between the first end 110 and the first meter 200.

[0082] Please continue to refer to Figure 4In one possible design, the first end 110 has a first surface 118, and a boss 117 protrudes from the first surface 118. When the connecting pin 111 is plugged into the socket 210 of the first meter 200, the first surface 118 abuts against the outer wall of the first meter 200.

[0083] By having the first surface 118 abut against the outer wall of the first meter 200, the problem of moisture and impurities in the environment entering through the gap between the first end 110 and the outer wall of the first meter 200 is reduced or even avoided. This reduces the probability of contaminating the connecting pin 111 and the socket 210 on the first meter 200, and further improves the stability and reliability of signal transmission between the data line 100 and the first meter 200.

[0084] Alternatively, in one possible design, when the connecting pin 111 is plugged into the socket 210 of the first meter 200, the first surface 118 abuts against other surfaces of the first meter 200. This arrangement can also achieve the same effect as the first surface 118 abutting against the outer wall of the first meter 200.

[0085] like Figure 6 As shown, in one possible design, the second meter 300 has a flange 330 around the pin 310; the second end 120 has a partition 124 around the connecting nut 121, and a receiving groove 125 is formed between the partition 124 and the connecting nut 121. When the connecting nut 121 is inserted into the pin 310 of the second meter 300, the flange 330 is located in the receiving groove 125, and the partition 124 abuts against the outer wall of the second meter 300.

[0086] The flange 330 on the second meter 300 surrounds the pin 310, making it less susceptible to damage from external impacts. When the connecting nut 121 is inserted into the pin 310 of the second meter 300, the flange 330 is housed in the receiving groove 125 formed between the partition 124 and the connecting nut 121, thus not occupying extra space between the second end 120 and the second meter 300, and not affecting the insertion of the connecting nut 121 and the pin 310.

[0087] With the flange 330 located within the receiving groove 125 and the partition 124 abutting against the outer wall of the second meter 300, a double barrier is provided to prevent impurities in the environment from entering between the connecting nut 121 and the pin 310, thereby improving the stability and reliability of signal transmission between the data line 100 and the second meter 300.

[0088] Please refer to Figures 3 to 6 This application also provides a data line 100 connection structure for a multi-circuit meter, including multiple meters and a data line 100 of any of the above-described embodiments.

[0089] The multiple electricity meters include a main unit and multiple slave units, and each electricity meter is equipped with a socket 210 and a pin 310.

[0090] The connecting pin 111 of the first end 110 of the data cable 100 is inserted into the socket 210 of the first meter 200. The first limiting member 112 on the first end 110 is structurally matched with the side of the socket 210 of the first meter 200 to limit the first end 110 and the first meter 200. The connecting nut 121 of the second end 120 of the data cable 100 is inserted into the pin 310 of the second meter 300. The second limiting member on the second end 120 is structurally matched with the side of the pin 310 of the second meter 300 to limit the second end 120 and the second meter 300. The first meter 200 and the second meter 300 are any two meters from a plurality of meters.

[0091] Through the above solution, even in space-constrained situations, the first end 110 of the data cable 100 connects to the first meter 200, and the second end 120 connects to the second meter 300. This allows two meters that cannot be directly connected due to space limitations to achieve signal exchange through the connection of the data cable 100, breaking the space limitation and improving the spatial applicability of the multi-circuit meter. Simultaneously, the cooperation between the first limiting member 112 and the first meter 200, and the cooperation between the second limiting member and the second meter 300, ensures that the connection between the data cable 100 and the two meters is not prone to loosening. This guarantees stable signal transmission between the first meter 200 and the second meter 300 connected by the data cable 100, preventing loosening due to external factors and ensuring the reliability of the multi-circuit meter.

Claims

1. A data cable, characterized in that, A master unit for connecting multiple circuit meters to any two meters from multiple slave units, each meter having a socket and pins, wherein the two meters are designated as a first meter and a second meter, and the data cable includes: The first end is provided with a connecting pin, which is used to connect to the socket on the first meter; the first end is also provided with a first limiting member, which is used to cooperate with the structure on the side where the socket of the first meter is located to limit the first end to the first meter. The second end is provided with a connecting nut, which is used to connect with the pin on the second meter; the second end is also provided with a second limiting member, which is used to cooperate with the structure on the side where the pin of the second meter is located to limit the second end and the second meter. A connecting wire is connected between the first end and the second end to enable signal transmission between the connecting pin and the connecting nut.

2. The data cable according to claim 1, characterized in that, The first meter has a first connection hole on the side where the socket is located; The first limiting member is configured as a first latching hook, the first latching hook including a first extension section and a first bent hook section connected to each other; When the connecting pin is inserted into the socket of the first meter, the first extension section passes through the first connecting hole, and the first hook section abuts against the wall surface of the first connecting hole away from the first end.

3. The data cable according to claim 1, characterized in that, The second meter has a second latch hook on the side where the pin is located. The second latch hook includes a second extension section and a second hook section connected to each other. The second limiting member is configured as a second connecting hole; When the connecting nut is inserted into the pin of the second meter, the second extension section passes through the second connecting hole, and the second hook section abuts against the wall surface of the second connecting hole away from the second meter.

4. The data cable according to claim 1, characterized in that, The first end is also provided with a first lead-sealing hole, which is connected to at least one hole structure on the first meter for the lead-sealing wire to pass through.

5. The data cable according to claim 3, characterized in that, The second end is also provided with a second lead-sealing hole, which is connected to at least one hole structure on the second meter for the lead-sealing wire to pass through.

6. The data cable according to claim 5, characterized in that, The second lead seal hole coincides with the second connecting hole.

7. The data cable according to any one of claims 1 to 6, characterized in that, The first meter has a groove, and the socket is located on the bottom wall of the groove; The first end has a boss, and the connecting pin is located on the top wall of the boss. When the connecting pin is inserted into the socket of the first meter, the top wall of the boss abuts against the bottom wall of the groove.

8. The data cable according to claim 7, characterized in that, The first end has a first surface, and the boss protrudes from the first surface. When the connecting pin is inserted into the socket of the first meter, the first surface abuts against the outer wall of the first meter.

9. The data cable according to any one of claims 1 to 6, characterized in that, The second meter has a flange around the pin; The second end has a ring of spacers around the connecting nut, and a groove is formed between the spacers and the connecting nut. When the connecting nut is inserted into the pin of the second meter, the flange is located in the groove, and the spacers abut against the outer wall of the second meter.

10. A data line connection structure for a multi-loop meter, characterized in that, include: Multiple electricity meters, the multiple electricity meters including a master unit and multiple slave units, each of the electricity meters being provided with a socket and pins; and, The data cable as described in any one of claims 1 to 9, wherein the connecting pin at the first end of the data cable is inserted into the socket of the first meter, and the first limiting member at the first end cooperates with the structure on the side where the socket of the first meter is located to limit the first end to the first meter; the connecting nut at the second end of the data cable is inserted into the pin on the second meter, and the second limiting member at the second end cooperates with the structure on the side where the pin of the second meter is located to limit the second end to the second meter; The first electricity meter and the second electricity meter are any two of the plurality of electricity meters.

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