Electric energy meter
By setting a limiting structure and adjustment hole inside the housing of the electricity meter, the stability problem caused by the shaking of the wiring terminals is solved, improving the reliability and safety of the electricity meter, while reducing the entry of impurities and enhancing its aesthetics.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-03-31
AI Technical Summary
The wiring terminals of existing electricity meters are prone to shaking during connection with external wires, affecting their reliability and stability, and posing a risk of dust and water entering.
A limiting structure, including a limiting protrusion and an adjustment hole, is installed inside the housing of the electricity meter. The limiting structure limits the swing amplitude of the wiring terminals and reduces the entry of impurities such as dust and water, ensuring a stable connection between the wiring terminals and other structures.
It effectively reduces the impact of terminal shaking on connection stability, improves the reliability and safety of the electricity meter, reduces the entry of impurities such as dust and water, and enhances aesthetics.
Smart Images
Figure CN224066868U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of low-voltage electrical apparatus, and particularly relates to an electric energy meter. BACKGROUND
[0002] The electric energy meter is a device capable of metering the electricity consumption. The electric energy meter comprises a shell and a terminal. The shell is provided with a first mounting hole. The terminal is provided with a terminal port. The terminal is connected to the shell, and the part of the terminal provided with the terminal port is exposed from the shell at the first mounting hole, so that the external lead wire can be electrically connected to the terminal through the terminal port.
[0003] Based on the cooperation mode of the terminal and the shell, in the process of electrically connecting the terminal and the external lead wire, the terminal is prone to shaking relative to the shell during the wiring process, which affects the use reliability of the electric energy meter. CONTENT OF THE UTILITY MODEL
[0004] The present application provides an electric energy meter. In the process of electrically connecting the terminal and the external lead wire, the terminal can abut against the limiting structure, so that the limiting structure can limit the shaking amplitude of the terminal relative to the shell, thereby reducing the possibility that the large shaking amplitude of the terminal relative to the shell affects the connection stability of the terminal and other structures, and ensuring the use reliability of the electric energy meter.
[0005] In the first aspect, the present application provides an electric energy meter. The electric energy meter comprises a shell and a terminal. The shell comprises a first mounting hole. The terminal is mounted on the shell. The terminal comprises a terminal port. The terminal port is exposed from the shell at the first mounting hole, so that the external lead wire can be electrically connected to the terminal through the terminal port. A limiting structure is arranged in the shell. In the process of electrically connecting the terminal and the external lead wire, the terminal can abut against the limiting structure.
[0006] Based on the above, in the process of electrically connecting the external lead wire and the terminal, the external lead wire will apply a force to the terminal away from the terminal port, so that the terminal shakes relative to the shell. In the example of the present application, the limiting structure is arranged in the shell. In the case that the terminal shakes relative to the shell, the terminal can abut against the limiting structure, so that the limiting structure can limit the shaking amplitude of the terminal relative to the shell, thereby reducing the possibility that the large shaking amplitude of the terminal affects the connection stability of the terminal and other structures, and ensuring the use reliability of the electric energy meter.
[0007] In addition, the shell comprises the first mounting hole, and the terminal port of the terminal can be exposed from the shell at the first mounting hole, so that the external lead wire can be inserted into the terminal port to realize the electrical connection between the external lead wire and the terminal, and further realize the electrical connection between the external lead wire and the electric energy meter.
[0008] In some possible implementation manners, the first mounting hole is arranged on a first mounting wall of the shell, and the limiting structure comprises a first limiting protrusion, the first limiting protrusion is arranged in a spaced manner with the first mounting wall, and in the process of electrically connecting the external lead wire with the terminal, the abutting wall of the terminal can abut against the first limiting protrusion, and the abutting wall is an outer wall of the terminal that faces away from the terminal port.
[0009] Based on the above, in the process of electrically connecting the external lead wire with the terminal, the external lead wire can apply a force to the terminal that faces away from the terminal port, so that the terminal shakes relative to the shell. In the example of the present application, the first limiting protrusion is arranged in the shell, and in the case that the terminal shakes relative to the shell, the terminal can abut against the first limiting protrusion. The first limiting protrusion can limit the amplitude of the shaking of the terminal relative to the shell, thereby reducing the possibility that the terminal is affected by the shaking amplitude that is too large, affecting the stability of the connection of the terminal with other structures, and ensuring the use reliability of the electric energy meter.
[0010] In addition, the first limiting protrusion cooperates with the abutting wall to reduce the possibility that impurities such as dust and water enter the inside of the electric energy meter from the fitting part of the shell and the terminal, and ensure the use safety of the electric energy meter.
[0011] In some possible implementation manners, the first limiting protrusion is in contact with the abutting wall.
[0012] In the case that the terminal is mounted to the shell, the abutting wall of the terminal can be in contact with the first limiting protrusion. Based on this, in the process of electrically connecting the external lead wire with the terminal, the terminal will deflect in a direction away from the first limiting protrusion under the action of the external lead wire, and the abutting wall of the terminal will abut against the first limiting protrusion. Since the first limiting protrusion is in contact with the abutting wall of the terminal, the amplitude of the shaking of the terminal relative to the shell can be further limited.
[0013] In some possible implementation manners, the abutting wall comprises a first sub-wall and a second sub-wall arranged at an angle, and the first limiting protrusion comprises a first sub-protrusion and a second sub-protrusion arranged at an angle. In the process of electrically connecting the external lead wire with the terminal, the first sub-wall can abut against the first sub-protrusion, and the second sub-wall can abut against the second sub-protrusion.
[0014] In the example of the present application, the abutting wall comprises a first sub-wall and a second sub-wall arranged at an angle, and the first limiting protrusion comprises a first sub-protrusion and a second sub-protrusion arranged at an angle. In the process of electrically connecting the terminal with the external lead wire, the first sub-wall can abut against the first sub-protrusion, and the second sub-wall can abut against the second sub-protrusion. Based on this, the first sub-protrusion can limit the first sub-wall, the second sub-protrusion can limit the second sub-wall, and in the case of the joint action of the first sub-protrusion and the second sub-protrusion, the amplitude of the shaking of the terminal relative to the shell can be further reduced.
[0015] In addition, since the first sub-wall can abut to the first sub-protrusion, the second sub-wall can abut to the second sub-protrusion, and the first sub-wall and the second sub-wall are arranged at an angle, the possibility of impurities such as dust and water entering the inside of the electric energy meter from the fitting position of the first sub-wall and the first sub-protrusion can be prolonged, and the use safety of the electric energy meter is further ensured.
[0016] In some possible implementation manners, the limiting structure further includes a second limiting protrusion, the second limiting protrusion is arranged on a side of the first limiting protrusion facing the first mounting hole, and the second limiting protrusion is arranged in cross with the first limiting protrusion.
[0017] In the examples of the present application, the second limiting protrusion is arranged in cross with the first limiting protrusion, based on which, the second limiting protrusion can limit the wire terminal from different directions in cooperation with the first limiting protrusion, and the amplitude of the wire terminal relative to the shell is further reduced.
[0018] In some possible implementation manners, the limiting structure further includes a third limiting protrusion, the third limiting protrusion is arranged on a side of the first limiting protrusion facing the first mounting hole, and the third limiting protrusion is arranged in cross with the first limiting protrusion. The third limiting protrusion is substantially parallel to the second limiting protrusion.
[0019] In the examples of the present application, the third limiting protrusion and the second limiting protrusion can limit the wire terminal from different directions in cooperation with the first limiting protrusion, and the amplitude of the wire terminal relative to the shell is further reduced in cooperation with the first limiting protrusion.
[0020] In addition, the third limiting protrusion, the second limiting protrusion, and the first limiting protrusion can respectively contact the outer wall of the wire terminal, and the possibility of impurities such as dust and water entering the inside of the electric energy meter from the fitting position of the different limiting protrusions and the wire terminal is further reduced.
[0021] In some possible implementation manners, the third limiting protrusion is connected to a first side of the first limiting protrusion, the second limiting protrusion is connected to a second side of the first limiting protrusion, and the first side and the second side are arranged opposite to each other.
[0022] Compared with the third limiting protrusion, the second limiting protrusion, and the first limiting protrusion arranged in cross, the third limiting protrusion is connected to the first side of the first limiting protrusion, and the second limiting protrusion is connected to the second side of the first limiting protrusion, so that the contact area of the limiting structure and the wire terminal is larger, and the amplitude of the wire terminal relative to the shell under the action of external force is further reduced.
[0023] In addition, by setting the third limiting protrusion connected to the first side of the first limiting protrusion and the second limiting protrusion connected to the second side of the first limiting protrusion, the limiting structure can surround the terminal from multiple directions, further reducing the possibility of foreign matter such as dust and water entering the inside of the electric energy meter from the fitting place of the limiting structure and the terminal.
[0024] In some possible implementation manners, the shell further includes a second mounting wall, the second mounting wall is arranged at an angle with the first mounting wall, and the second mounting wall is provided with a second mounting hole in communication with the first mounting hole. The terminal includes an adjusting hole, the adjusting hole is exposed to the outside of the shell from the second mounting hole.
[0025] In the case where the first mounting hole is in communication with the second mounting hole, when the terminal is mounted to the shell, the adjusting hole of the terminal can be exposed to the outside of the shell from the second mounting hole, facilitating an operator to adjust the connection state of the terminal and the external lead wire from the adjusting hole. In addition, the terminal port can be exposed to the outside of the shell from the first mounting hole, facilitating the external lead wire to be electrically connected to the terminal from the terminal port.
[0026] In some possible implementation manners, the terminal further includes an adjusting wall, and the adjusting hole is arranged on the adjusting wall. In the direction from the mounting wall to the bottom wall of the shell, the distance between the mounting wall and the bottom wall is greater than or equal to the distance between the adjusting wall and the mounting wall.
[0027] Based on the above, in the direction from the mounting wall to the bottom wall of the shell, the distance between the mounting wall and the bottom wall is greater than or equal to the distance between the adjusting wall and the mounting wall, so that the terminal does not protrude from the shell, the probability of accidentally touching the terminal can be reduced, and the possibility of the terminal shaking relative to the shell due to accidental touch can be reduced.
[0028] In addition, the terminal does not protrude from the shell, and the appearance performance is higher compared to the terminal protruding to the outside of the shell.
[0029] In some possible implementation manners, the electric energy meter further includes a circuit board, the circuit board is mounted to the shell, the circuit board is connected to one end of the terminal away from the adjusting wall, and the limiting structure is in contact with the circuit board.
[0030] During transportation or use of the electric energy meter, if the circuit board shakes relative to the shell, since the limiting structure is arranged to be in contact with the circuit board in the example of the present application, the limiting structure can limit the circuit board, the amplitude of the circuit board shaking relative to the shell can be reduced, and then the connection reliability of the circuit board and the terminal can be ensured, and the use reliability of the electric energy meter can be ensured. BRIEF DESCRIPTION OF DRAWINGS
[0031] Figure 1 A structure schematic diagram of the electric energy meter in a first perspective provided in the example of the present application.
[0032] Figure 2 A structural schematic diagram of a second perspective of an electric energy meter according to an example of the present application.
[0033] Figure 3 A sectional view along A-A in FIG. 1. Figure 2
[0034] Figure 4 A partial enlarged schematic view of A in FIG. 1. Figure 3
[0035] Figure 5 A structural schematic diagram of a first perspective of a shell according to an example of the present application.
[0036] Figure 6 A structural schematic diagram of a second perspective of a shell according to an example of the present application.
[0037] Figure 7 A schematic diagram of the cooperation between a wiring terminal and a circuit board according to an example of the present application.
[0038] Figure 8 A schematic diagram of the internal structure of a shell according to an example of the present application.
[0039] Legend of reference signs:
[0040] 100, electric energy meter; 110, wiring terminal; 111, abutting wall; 1111, first sub-wall; 1112, second sub-wall; 112, adjusting wall; 120, shell; 121, first mounting wall; 122, second mounting wall; 130, limiting structure; 131, first limiting protrusion; 1311, first sub-protrusion; 1312, second sub-protrusion; 132, second limiting protrusion; 133, third limiting protrusion; 140, circuit board. DETAILED DESCRIPTION
[0041] In order to make the objects, technical solutions and advantages of the examples of the present application clearer, the technical solutions in the examples of the present application will be described clearly and completely below with reference to the drawings in the examples of the present application. Obviously, the described examples are some but not all of the examples of the present application. Based on the examples in the present application, all other examples obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.
[0042] 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 the present application belongs; the terminology used in the specification of the present application is only for the purpose of describing specific examples and is not intended to limit the present application; the terms “comprise” and “have” and any variations thereof in the specification of the present application and the description of the drawings are intended to cover non-exclusive inclusion.
[0043] Reference within this document to "one example" or "an example" means that a particular feature, structure, or characteristic described in connection with the example is included in at least one example of the application. The appearances of the phrase "in one example" or "an example" in various places in the specification are not necessarily all referring to the same example, nor are they necessarily mutually exclusive or alternative examples to one another.
[0044] The term "and / or", merely describes an associated relationship between associated objects, which means that there can be three relationships, for example, A and / or B, which means that there are A, A and B, and B. In addition, the character " / " in this document generally represents an "or" relationship between the associated objects before and after it.
[0045] The orientation words appearing in the following description are the directions shown in the drawings, and are not limited to the specific structure of the electric energy meter of the application.
[0046] In addition, the terms "first", "second", and the like in the specification and claims of the application or the above drawings are used to distinguish different objects, and are not used to describe a specific order, which can explicitly or implicitly include one or more features.
[0047] In the description of the application, unless otherwise specified, the meaning of "a plurality of" is two or more (including two), and similarly, "a plurality of groups" means two or more groups (including two groups).
[0048] In the description of the application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, the "connection" or "connection" of mechanical structure can mean physical connection, for example, physical connection can be fixed connection, for example, fixed connection by spacer, for example, fixed connection by screw, bolt or other spacer; physical connection can also be detachable connection, for example, mutual clamping or clamping connection; physical connection can also be integrally connected, for example, welding, bonding or integrally formed connection. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.
[0049] Based on the above, the application provides an electric energy meter.
[0050] In order to enable those skilled in the art to better understand the application, the electric energy meter provided by the application will be described clearly and completely in the following with reference to the drawings.
[0051] Exemplarily, the application provides an electric energy meter. Figure 1A structural schematic diagram of a first perspective of an electric energy meter provided for an example of the present application, Figure 2 A structural schematic diagram of a second perspective of an electric energy meter provided for an example of the present application, Figure 3 A structural schematic diagram of a second perspective of an electric energy meter provided for an example of the present application, Figure 2 A sectional view at A-A in FIG. 1, Figure 4 A structural schematic diagram of a second perspective of an electric energy meter provided for an example of the present application, Figure 3 A partial enlarged schematic view at A in FIG. 1.
[0052] Please refer to Figures 1 to 4 The electric energy meter 100 comprises a housing 120 and a terminal 110. The housing 120 comprises a first mounting hole. The terminal 110 is mounted in the housing 120, and the terminal 110 comprises a terminal port which is exposed outside the housing 120 from the first mounting hole, so that an external lead wire can be electrically connected to the terminal 110 from the terminal port. The housing 120 is provided with a limiting structure 130, and the terminal 110 can abut against the limiting structure 130 during the electrical connection of the terminal 110 and the external lead wire.
[0053] The housing 120 is made of insulating material, such as polyvinyl chloride, polycarbonate (also known as PC plastic), etc.
[0054] The housing 120 can be mounted with a circuit board 140 and other conductive structures. The housing 120 made of insulating material can reduce the possibility of current escaping from the inside of the housing 120 to the outside of the housing 120, thereby ensuring the safety of the housing 120.
[0055] The housing 120 is provided with a first mounting hole, and the terminal 110 is provided with a terminal port. At least part of the terminal port can be exposed outside the housing 120 from the first mounting hole when the terminal 110 is mounted in the housing 120. At this time, the external lead wire can be inserted into the terminal port and then electrically connected to the terminal 110.
[0056] The terminal 110 can be used only for the electrical connection of the electric energy meter 100 and the external lead wire, or the terminal 110 can be used not only for the electrical connection of the external lead wire and the electric energy meter 100, but also for the information interaction between the circuit board 140 and the external structure of the electric energy meter 100.
[0057] The limiting structure 130 is arranged in the housing 120, and the limiting structure 130 can be integrally formed with the housing 120, or the limiting structure 130 can be connected to the housing 120 by insertion, adhesion or other means.
[0058] When the terminal 110 is mounted in the housing 120, the terminal 110 can be in contact with the limiting structure 130, or there can be a gap between the terminal 110 and the limiting structure 130, as long as the terminal 110 can abut against the limiting structure 130 during the electrical connection of the external lead wire to the terminal 110.
[0059] Based on the above, in the process of electrically connecting the external lead wire and the terminal 110, the external lead wire will apply a force away from the terminal port to the terminal 110, so that the terminal 110 will shake relative to the shell 120. In the example of the present application, the shell 120 is provided with a limiting structure 130. In the case that the terminal 110 shakes relative to the shell 120, the terminal 110 can abut against the limiting structure 130, so that the terminal 110 can limit the amplitude of the shaking of the terminal 110 relative to the shell 120, thereby reducing the possibility that the terminal 110 will affect the stability of the connection of the terminal 110 with other structures due to excessive shaking amplitude, and ensuring the use reliability of the electric energy meter 100.
[0060] In addition, the shell 120 includes a first mounting hole, and the terminal port of the terminal 110 can be exposed from the first mounting hole of the shell 120, so that the external lead wire can be inserted into the terminal port to achieve electrical connection between the external lead wire and the terminal 110, and further achieve electrical connection between the external lead wire and the electric energy meter 100.
[0061] Based on the above example of the electric energy meter 100, Figure 5 A structural schematic diagram of a first perspective of a shell provided in the example of the present application, Figure 6 A structural schematic diagram of a second perspective of a shell provided in the example of the present application, please refer to Figure 5 And Figure 6 The first mounting hole is arranged on the first mounting wall 121 of the shell 120, and the limiting structure 130 includes a first limiting protrusion 131, which is arranged in a spaced manner with the first mounting wall 121. In the process of electrically connecting the external lead wire and the terminal 110, the abutting wall 111 of the terminal 110 can abut against the first limiting protrusion 131, and the abutting wall 111 is an outer wall of the terminal 110 away from the terminal port.
[0062] The first limiting protrusion 131 can be at least one of a plate-shaped structure, a strip-shaped structure, etc.
[0063] The first limiting protrusion 131 can be one, and the first limiting protrusion 131 can also be spaced and provided with a plurality of first limiting protrusions 131.
[0064] The first limiting protrusion 131 can be integrally formed with the shell 120, and the first limiting protrusion 131 can also be connected with the shell 120 by means of insertion or the like.
[0065] The first mounting wall 121 is substantially perpendicular to the bottom wall of the electric energy meter 100, and the outer wall is provided with the first mounting hole.
[0066] The first mounting wall 121 is substantially perpendicular to the bottom wall, which can be understood as that the included angle between the first mounting wall 121 and the bottom wall is greater than 85° and less than 95°.
[0067] The first limiting protrusion 131 can be parallel to the first mounting wall 121, or the first limiting protrusion 131 and the first mounting wall 121 can form an included angle, which is not specifically limited in the examples of the present application.
[0068] Based on the above, in the process of electrically connecting the external lead wire and the terminal 110, the external lead wire will apply a force away from the terminal port to the terminal 110, so that the terminal 110 will shake relative to the shell 120. In the examples of the present application, the shell 120 is provided with a first limiting protrusion 131, and in the case that the terminal 110 shakes relative to the shell 120, the terminal 110 can abut against the first limiting protrusion 131, and the first limiting protrusion 131 can limit the amplitude of the shaking of the terminal 110 relative to the shell 120, thereby reducing the possibility that the terminal 110 will affect the stability of the connection of the terminal 110 with other structures due to excessive shaking amplitude, and ensuring the use reliability of the electric energy meter 100.
[0069] In addition, the first limiting protrusion 131 cooperates with the abutting wall 111 to reduce the possibility that dust, water and other impurities will enter the inside of the electric energy meter 100 from the cooperation between the shell 120 and the terminal 110, thereby ensuring the use safety of the electric energy meter 100.
[0070] Based on the electric energy meter 100 provided in the above examples, the first limiting protrusion 131 is in contact with the abutting wall 111.
[0071] In the case that the terminal 110 is installed to the shell 120, the abutting wall 111 of the terminal 110 can be in contact with the first limiting protrusion 131. Based on this, in the process of electrically connecting the external lead wire and the terminal 110, the terminal 110 will deflect in a direction away from the first limiting protrusion 131 under the action of the external lead wire, which will cause the abutting wall 111 of the terminal 110 to abut against the first limiting protrusion 131. Since the first limiting protrusion 131 is in contact with the abutting wall 111 of the terminal 110, the amplitude of the shaking of the terminal 110 relative to the shell 120 can be further limited.
[0072] Based on the electric energy meter 100 provided in the above examples, Figure 7 a cooperation schematic diagram of a terminal and a circuit board provided in the examples of the present application, Figure 8 an internal structure schematic diagram of a shell provided in the examples of the present application, please refer to Figure 7 and Figure 8The abutting wall 111 includes the first sub-wall 1111 and the second sub-wall 1112 arranged at an angle, and the first limiting protrusion 131 includes the first sub-protrusion 1311 and the second sub-protrusion 1312 arranged at an angle. During the electrical connection of the external lead wire and the terminal 110, the first sub-wall 1111 can abut against the first sub-protrusion 1311, and the second sub-wall 1112 can abut against the second sub-protrusion 1312.
[0073] The included angle formed by the first sub-wall 1111 and the second sub-wall 1112 can be an obtuse angle. Based on the design of the terminal 110, the included angle between the first sub-wall 1111 and the second sub-wall 1112 can also be a right angle or other angles. The present application does not specifically limit this.
[0074] The angle formed by the first sub-protrusion 1311 and the second sub-protrusion 1312 can be substantially equal to the angle formed by the first sub-wall 1111 and the second sub-wall 1112. If the included angle formed by the first sub-wall and the second sub-wall is a first included angle, and the included angle formed by the first sub-protrusion 1311 and the second sub-protrusion 1312 is a second included angle, the second included angle substantially equal to the first included angle can be understood as the angle difference between the second included angle and the first included angle being less than or equal to 5°.
[0075] The shapes of the first sub-protrusion 1311 and the second sub-protrusion 1312 can be the same or different.
[0076] In the example of the present application, the abutting wall 111 includes the first sub-wall 1111 and the second sub-wall 1112 arranged at an angle, and the first limiting protrusion 131 includes the first sub-protrusion 1311 and the second sub-protrusion 1312 arranged at an angle. During the electrical connection of the terminal 110 and the external lead wire, the first sub-wall 1111 can abut against the first sub-protrusion 1311, and the second sub-wall 1112 can abut against the second sub-protrusion 1312. Based on this, the first sub-protrusion 1311 can limit the first sub-wall 1111, and the second sub-protrusion 1312 can limit the second sub-wall 1112. Under the joint action of the first sub-protrusion 1311 and the second sub-protrusion 1312, the amplitude of the terminal 110 relative to the shell 120 can be further reduced.
[0077] In addition, since the first sub-wall 1111 can abut against the first sub-protrusion 1311, and the second sub-wall 1112 can abut against the second sub-protrusion 1312, and the first sub-wall 1111 and the second sub-wall 1112 are arranged at an angle, the possibility of impurities such as dust and water entering the inside of the electric energy meter 100 from the joint of the first sub-wall 1111 and the first sub-protrusion 1311 can be prolonged, further ensuring the use safety of the electric energy meter 100.
[0078] Based on the power meter 100 provided in the above example, please refer to Figure 6 The limiting structure 130 further comprises a second limiting protrusion 132, which is arranged on the side of the first limiting protrusion 131 facing the first mounting hole, and the second limiting protrusion 132 is arranged transversely to the first limiting protrusion 131.
[0079] The second limiting protrusion 132 can have a plate structure, a strip structure or other protruding structure. The structure of the second limiting protrusion 132 can be the same as that of the first limiting protrusion 131, or different from that of the first limiting protrusion 131.
[0080] In the case of placing the power meter 100 as shown in Figure 6 , the second limiting protrusion 132 can be arranged on the right side of the first limiting protrusion 131, or on the left side of the first limiting protrusion 131. The present application does not make specific limitations on this.
[0081] The second limiting protrusion can be arranged separately from the first limiting protrusion 131 (not shown in the figure), or can be connected to the first limiting protrusion 131.
[0082] In the example of the present application, the second limiting protrusion 132 is arranged transversely to the first limiting protrusion 131. Based on this, the second limiting protrusion 132 can cooperate with the first limiting protrusion 131 to limit the wire terminal 110 from different directions, further reducing the amplitude of the wire terminal 110 relative to the shell 120.
[0083] Based on the power meter 100 provided in the above example, please refer to Figure 6 The limiting structure 130 further comprises a third limiting protrusion 133, which is arranged on the side of the first limiting protrusion 131 facing the first mounting hole, and the third limiting protrusion 133 is arranged transversely to the first limiting protrusion 131. Among them, the third limiting protrusion 133 is substantially parallel to the second limiting protrusion 132.
[0084] The third limiting protrusion 133 is substantially parallel to the second limiting protrusion 132, which means that the included angle formed by the third limiting protrusion 133 and the second limiting protrusion 132 is less than or equal to 5°.
[0085] The third limiting protrusion 133, the second limiting protrusion 132 and the first limiting protrusion 131 cooperate to form a cavity for accommodating the wire terminal 110. In the case of installing the wire terminal 110 to the shell 120, at least one of the third limiting protrusion 133, the second limiting protrusion 132 and the first limiting protrusion 131 can be in contact with the outer wall of the wire terminal 110.
[0086] The first limiting protrusion 131 can be connected to at least one of the second limiting protrusion 132 and the third limiting protrusion 133, or can be spaced apart from the second limiting protrusion 132 and the third limiting protrusion 133.
[0087] In the example, the third limiting protrusion 133 and the second limiting protrusion 132 can cooperate to limit the terminal 110 from different directions than the first limiting protrusion 131, and the cooperation of the first limiting protrusion 131 further reduces the amplitude of the terminal 110 relative to the shell 120.
[0088] In addition, the third limiting protrusion 133, the second limiting protrusion 132, and the first limiting protrusion 131 can be in contact with the outer wall of the terminal 110, respectively, further reducing the possibility of impurities such as dust and water entering the inside of the electric energy meter 100 from the positions where the limiting protrusions cooperate with the terminal 110.
[0089] Based on the electric energy meter 100 provided in the above example, please refer to Figure 6 The third limiting protrusion 133 is connected to the first side of the first limiting protrusion 131, and the second limiting protrusion 132 is connected to the second side of the first limiting protrusion 131, and the first side and the second side are arranged opposite to each other.
[0090] The third limiting protrusion 133 can be integrally formed with the first limiting protrusion 131, or the third limiting protrusion 133 can be connected to the first side of the first limiting protrusion 131 by insertion or the like.
[0091] The second limiting protrusion 132 can be integrally formed with the first limiting protrusion 131, or the second limiting protrusion 132 can be connected to the second side of the first limiting protrusion 131 by insertion or the like.
[0092] Compared with the third limiting protrusion 133, the second limiting protrusion 132, and the first limiting protrusion 131 being spaced apart, the third limiting protrusion 133 is connected to the first side of the first limiting protrusion 131, and the second limiting protrusion 132 is connected to the second side of the first limiting protrusion 131, which can make the contact area of the limiting structure 130 and the terminal 110 larger, and further reduce the amplitude of the terminal 110 relative to the shell 120 under external force.
[0093] In addition, by arranging the third limiting protrusion 133 connected to the first side of the first limiting protrusion 131 and the second limiting protrusion 132 connected to the second side of the first limiting protrusion 131, the limiting structure 130 can surround the wiring terminal 110 from multiple directions, improve the sealing performance between the limiting structure 130 and the wiring terminal 110, and further reduce the possibility of foreign matter such as dust and water entering the inside of the electric energy meter 100 from the fitting part of the limiting structure 130 and the wiring terminal 110.
[0094] Based on the electric energy meter 100 provided in the above example, please refer to Figure 5 , the shell 120 further comprises a second mounting wall 122, the second mounting wall 122 is arranged at an angle with the first mounting wall 121, and the second mounting wall 122 is provided with a second mounting hole, which is in communication with the first mounting hole. The wiring terminal 110 comprises an adjusting hole, which is exposed outside the shell 120 from the second mounting hole.
[0095] The mounting terminal can comprise an adjusting screw, which can be threadedly connected with the adjusting hole, and the connection state of the wiring terminal 110 and the external lead wire can be adjusted by adjusting the adjusting screw.
[0096] The second mounting wall 122 can be substantially perpendicular to the first mounting wall 121, that is, the included angle between the second mounting wall 122 and the first mounting wall 121 is greater than or equal to 85° and less than or equal to 95°.
[0097] In the case that the first mounting hole is in communication with the second mounting hole, when the wiring terminal 110 is mounted to the shell 120, the adjusting hole of the wiring terminal 110 can be exposed outside the shell 120 from the second mounting hole, so as to facilitate the operator to adjust the connection state of the wiring terminal 110 and the external lead wire from the adjusting hole. In addition, the wiring port can be exposed outside the shell 120 from the first mounting hole, so as to facilitate the external lead wire to be electrically connected with the wiring terminal 110 from the wiring port.
[0098] Based on the electric energy meter 100 provided in the above example, please refer to Figure 3 , Figure 4 and Figure 7 , the wiring terminal 110 further comprises an adjusting wall 112, and the adjusting hole is arranged on the adjusting wall 112. In the direction from the mounting wall to the bottom wall of the shell 120, the distance between the mounting wall and the bottom wall is greater than or equal to the distance between the adjusting wall 112 and the mounting wall.
[0099] The adjusting wall 112 can be substantially parallel to the bottom wall of the electric energy meter 100, that is, the angle between the adjusting wall 112 and the bottom wall of the electric energy meter 100 is less than or equal to 3°.
[0100] In the direction from the mounting wall to the bottom wall of the shell 120, the distance between the mounting wall and the bottom wall is greater than or equal to the distance between the adjusting wall 112 and the mounting wall, which can be understood as that, in the direction from the mounting wall to the bottom wall of the shell 120, the adjusting wall 112 is flush with the mounting wall, or the adjusting wall 112 is lower than the mounting wall, and the present application does not specifically limit this.
[0101] Based on the above, in the direction from the mounting wall to the bottom wall of the shell 120, the distance between the mounting wall and the bottom wall is greater than or equal to the distance between the adjusting wall 112 and the mounting wall, which can make the wiring terminal 110 not protrude from the shell 120, can reduce the probability of accidentally touching the wiring terminal 110, and reduce the possibility of the wiring terminal 110 shaking relative to the shell 120 due to accidental touch.
[0102] In addition, the wiring terminal 110 does not protrude from the shell 120, and compared with the wiring terminal 110 protruding out of the shell 120, the appearance performance is higher.
[0103] Based on the above example provided by the electric energy meter 100, please refer to Figure 4 and Figure 7 The electric energy meter 100 further comprises a circuit board 140, the circuit board 140 is mounted to the shell 120, the circuit board 140 is connected to one end of the wiring terminal 110 away from the adjusting wall 112, and the limiting structure 130 is in contact with the circuit board 140.
[0104] The circuit board 140 can be electrically connected with the wiring terminal 110.
[0105] In the case that the wiring terminal 110 is a pulse terminal, the circuit board 140 can realize information interaction with the structure outside the electric energy meter 100 through the wiring terminal 110. The pulse terminal can be electrically connected with the circuit board 140 through the hole shaft connection mode.
[0106] In the case that the limiting structure 130 comprises a plurality of limiting protrusions, at least one of the first limiting protrusion 131, the second limiting protrusion 132 and the third limiting protrusion 133 can be in contact with the circuit board 140, and at least one of the first limiting protrusion 131, the second limiting protrusion 132 and the third limiting protrusion 133 can also be in abutment with the circuit board 140.
[0107] During the transportation or use of the electric energy meter 100, if the circuit board 140 shakes compared with the shell 120, since the limiting structure 130 in the present application is in contact with the circuit board 140, the limiting structure 130 can limit the circuit board 140, reduce the amplitude of the circuit board 140 shaking compared with the shell 120, and further ensure the connection reliability of the circuit board 140 and the wiring terminal 110, and ensure the use reliability of the electric energy meter 100.
[0108] Finally, it should be noted that the above embodiments are merely specific embodiments of the present application, and the protection scope of the present application is not limited thereto. Any changes or replacements within the technical scope disclosed by the present application should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. An electric energy meter, characterized by, The utility model relates to a terminal, including: A shell, including first mounting hole; A terminal is installed to the shell, the terminal includes the terminal mouth, the terminal mouth exposes from the first mounting hole to the shell outside to enable the external wire to be electrically connected from the terminal mouth with the terminal; Wherein, the shell is equipped with the limiting structure, and in the process that the terminal is electrically connected with the external wire, the terminal can abut to the limiting structure.
2. The electric energy meter according to claim 1, characterized in that, The first mounting hole is equipped with the first installation wall of the shell, and the limiting structure includes the first limiting protrusion, the first limiting protrusion is arranged at intervals with the first installation wall, and in the process that the external wire is electrically connected with the terminal, the abutment wall of the terminal can abut to the first limiting protrusion, and the abutment wall is the outer wall of the terminal away from the terminal mouth.
3. The electric energy meter of claim 2, wherein, The first limiting protrusion is in contact with the abutment wall.
4. The electric energy meter according to claim 2 or 3, characterized in that, The abutment wall includes the first partial wall and the second partial wall arranged at an angle, and the first limiting protrusion includes the first sub-protrusion and the second sub-protrusion arranged at an angle, in the process that the external wire is electrically connected with the terminal, the first partial wall can abut to the first sub-protrusion, and the second partial wall can abut to the second sub-protrusion.
5. The electric energy meter of claim 2, wherein, The limiting structure further includes a second limiting protrusion, the second limiting protrusion is arranged on one side of the first limiting protrusion facing the first mounting hole, and the second limiting protrusion and the first limiting protrusion are arranged in cross.
6. The electric energy meter of claim 5, wherein, The limiting structure further includes a third limiting protrusion, the third limiting protrusion is arranged on one side of the first limiting protrusion facing the first mounting hole, and the third limiting protrusion and the first limiting protrusion are arranged in cross. Wherein, the third limiting protrusion and the second limiting protrusion are substantially parallel.
7. The electric energy meter of claim 6, wherein, The third limiting protrusion is connected to the first side of the first limiting protrusion, the second limiting protrusion is connected to the second side of the first limiting protrusion, and the first side and the second side are arranged opposite.
8. The electric energy meter of claim 2, wherein, The shell further includes a second mounting wall, the second mounting wall is arranged at an angle with the first mounting wall, the second mounting wall is provided with a second mounting hole, and the second mounting hole is in communication with the first mounting hole. The terminal includes an adjusting hole, and the adjusting hole is exposed to the shell outside from the second mounting hole.
9. The electric energy meter of claim 8, wherein, The terminal further includes an adjusting wall, the adjusting hole is arranged on the adjusting wall, and the distance between the mounting wall and the bottom wall in the direction from the mounting wall to the bottom wall of the shell is greater than or equal to the distance between the adjusting wall and the mounting wall.
10. The electric energy meter of claim 9, wherein, Further including a circuit board, the circuit board is installed to the shell, and the circuit board is connected to one end of the terminal away from the adjusting wall, and the limiting structure is in contact with the circuit board.