Electricity meter and electricity meter box

Abstract

The present invention relates to the field of electric power equipment, and specifically to an electric energy meter, which includes an electric energy meter housing; the electric energy meter housing includes a housing body and a terminal seat; the terminal seat is arranged at one end of the housing body, and the terminal seat includes a plurality of assembly cavities arranged thereon, each assembly cavity includes an assembly top wall provided with a first opening and an assembly cavity opening, the assembly top wall and the assembly opening are respectively arranged at the upper and lower ends of the assembly cavity, each assembly cavity is provided with a plug-in female head connected to the internal circuit of the electric energy meter, and the plug-in female head is fixedly connected to the assembly top wall; the housing body includes a main body opening arranged corresponding to the assembly cavity opening; the electric energy meter can realize plug-in installation of the electric energy meter through the plug-in female head. The present invention also relates to an electric energy meter box, which includes a plug-in male head, the plug-in male head is plugged and matched with the plug-in female head of the electric energy meter, and the plug-in male head is connected to the external wire, so as to realize the rapid installation and wiring of the electric energy meter.

Description

Technical Field

[0001] The invention relates to the field of electric power equipment, in particular to an electric energy meter and an electric energy meter box. A plug female head of the electric energy meter is plugged and matched with a plug male head of the electric energy meter box. Background Art

[0002] At present, there are two kinds of fixing methods for smart meters in my country, one is wall-mounted fixing and the other is rail-mounted fixing. The wall-mounted fixing method is inconvenient to install and replace the meter, and the wall-mounted electric energy meter needs to be connected to multiple lines, the wiring operation is complicated, and the line needs to be connected again when the meter is replaced. In addition, the existence of multiple wiring terminals also has high requirements for the structural design of the meter. The rail-mounted fixing method has the advantages of small size, easy installation, and easy networking, but it has high requirements for the design of the circuit board of the meter and the design of the production tooling. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects of the prior art and provide an electric energy meter that can be installed in a plug-in manner by plugging in a female connector.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] An electric energy meter comprises an electric energy meter housing 1; the electric energy meter housing 1 comprises a housing body 1a and a terminal seat 1b; the terminal seat 1b is arranged at one end of the housing body 1a, the terminal seat 1b comprises a plurality of assembly cavities 14b arranged thereon, each assembly cavity 14b comprises an assembly top wall 141b provided with a first opening 10b and an assembly cavity opening 140b, the assembly top wall 141b and the assembly cavity opening 140b are respectively arranged at the upper and lower ends of the assembly cavity 14b, each assembly cavity 14b is provided with a plug female connector 3a connected to an internal circuit of the electric energy meter, the plug female connector 3a is fixedly connected to the assembly top wall 141b; the housing body 1a comprises a main body opening arranged corresponding to the assembly cavity opening 140b.

[0006] Preferably, the assembly cavity 14b further includes a first side wall 142b having a second opening 11b, and the first side wall 142b is disposed between the assembly top wall 141b and the assembly cavity opening 140b;

[0007] It also includes an L-shaped electric energy meter terminal block 3d, which includes a terminal block detection portion 30d and a terminal block connection portion 31d that are connected by bending. The terminal block connection portion 31d is fixedly connected to the female plug 3a, and the terminal block detection portion 30d is arranged between the female plug 3a and the second opening 11b.

[0008] Preferably, the female plug connector 3a is used to be plugged and matched with the male plug connector 4a fixed on the electric energy meter box to achieve the fixation and power connection of the electric energy meter.

[0009] Preferably, the plug-in female connector 3a includes a female connector connecting plate 30a and two female connector clamping parts 31a, the two female connector clamping parts 31a are arranged opposite to each other and are respectively connected to the female connector connecting plate 30a by bending; the female connector clamping part 31a includes a female connector outer arm 311a, a female connector transition plate 312a and a female connector inner arm 313a, one end of the female connector outer arm 311a is connected to the female connector connecting plate 30a by bending, and the other end is connected to one end of the female connector transition plate 312a by bending, and the other end of the female connector transition plate 312a is connected to one end of the female connector inner arm 313a by bending; the two female connector outer arms 311a of the plug-in female connector 3a are arranged opposite to each other, and the two female connector inner arms 313a are arranged opposite to each other and are located between the two female connector outer arms 311a.

[0010] Preferably, the connection between the female transition plate 312a and the female inner arm 313a is the first connection portion, and the distance between the two female inner arms 313a gradually decreases from the free end of the female inner arm 313a to the first connection portion. The end of the female transition plate 312a connected to the female inner arm 313a is higher than the end of the female transition plate 312a connected to the female outer arm 311a, and a socket 32a is formed between the two female transition plates 312a of the female connector 3a for easy insertion of the male connector 4a.

[0011] Preferably, the male connector 4a includes a male connector plate 41a, and a gap is provided between the free ends of the two female connector inner arms 313a of the female connector 3a, and the width of the gap is smaller than the thickness of the male connector plate 41a.

[0012] Preferably, a female connecting hole 300a is provided in the middle of the female connecting plate 30a, the upper end of the female outer arm 311a is connected to the female connecting plate 30a at a right angle, and the lower end is connected to the lower end of the female transition plate 312a by bending, the angle between the female outer arm 311a and the female transition plate 312a is α, α<90°, the upper end of the female transition plate 312a is connected to the lower end of the female inner arm 313a by bending, and the angle between the female transition plate 312a and the female inner arm 313a is β, β>90°.

[0013] Preferably, it also includes a clamping member 3c, which includes two clamping arms 30c arranged opposite to each other, and the two clamping arms 30c of the clamping member 3c are respectively arranged on both sides of the two female inner arms 313a of the plug-in female connector 3a, and the clamping arms 30c are arranged parallel to the upper ends of the female inner arms 313a to clamp the two female inner arms 313a.

[0014] Preferably, the clamp arm 30c is a U-shaped structure, including a first clamp arm 300c and a second clamp arm 301c that are arranged opposite to each other.

[0015] Preferably, adjacent assembly cavities 14b are insulated and spaced apart from each other, and a first screw 3b passes through a first opening 10b to connect the female connector board 30a of the female connector 3a, the electric energy meter terminal board 3d and the assembly top wall 141b together.

[0016] Preferably, when a wiring frame is arranged in the assembly cavity 14b to replace the female plug 3a, the wiring screw passes through the first opening 10b to be threadedly connected to the wiring frame, and the external wire 9 passes through the second opening 11b to be connected to the wiring frame.

[0017] Preferably, a terminal seat assembly groove 10a is provided at one end of the shell body 1a, a main body opening is provided on the bottom wall of the terminal seat assembly groove 10a, and external limit grooves 113a are provided on the side walls at both ends of the terminal seat assembly groove 10a, and an external clamping platform 110a is provided on one side of each external limit groove 113a; internal limit columns 13b and internal limit grooves 133b are provided at both ends of the terminal seat 1b, and the internal limit columns 13b include first internal limit columns 131b and second internal limit columns 132b that are arranged opposite to each other. b. The inner limit groove 133b is arranged on one side of the first inner limit column 131b, and an inner clamping platform 130b is provided in the middle of the inner limit groove 133b. The first inner limit column 131b and the second inner limit column 132b are respectively matched with the two ends of the outer limit groove 113a to limit the relative translation between the terminal seat 1b and the shell body 1a. The outer clamping platform 110a is inserted into the inner limit groove 133b and matched with the inner clamping platform 130b to limit the terminal seat 1b from being pulled out of the terminal seat assembly groove 10a.

[0018] An electric energy meter box comprises a plurality of male plugs 4a arranged on the electric energy meter box, the male plugs 4a are plugged and matched with the female plugs 3a of the electric energy meter, and the male plugs 4a are connected to an external wire 9.

[0019] Preferably, the electric energy meter box includes a meter box bottom plate 2, and the plug-in male head 4a includes a male head connecting plate 40a and a male head plugging plate 41a that are bent and connected to each other. The male head connecting plate 40a is provided with a male head connecting hole 400a, the male head connecting plate 40a is fixedly connected to the meter box bottom plate 2, and the male head plugging plate 41a is plugged and matched with the plug-in female head 3a; the meter box bottom plate 2 includes a bottom plate assembly platform 20 and a plurality of bottom plate insulating partitions 21, the bottom plate assembly platform 20 is protrudingly arranged on one side of the meter box bottom plate 2, the second screw 4b passes through the male head connecting hole 400a and is connected to the bottom plate assembly platform 20, fixing the male head connecting plate 40a and the bottom plate assembly platform 20 together, the external wire 9 is connected to the male head connecting plate 40a through the second screw 4b, and the plurality of bottom plate insulating partitions 21 are arranged in parallel and spaced apart to separate adjacent plug-in male heads 4a.

[0020] The electric energy meter of the present invention has a terminal seat of the electric energy meter housing provided with an assembly cavity, and a plug-in female head is provided in the assembly cavity, which can be plugged with the plug-in male head on the electric energy meter box, thereby realizing the plug-in fixed installation of the electric energy meter, which is beneficial to improving the installation efficiency of the electric energy meter. In addition, the electric energy meter of the present invention has an assembly cavity which also includes a first side wall provided with a second opening, and the electric energy meter wiring board includes a wiring board detection part and a wiring board connection part, and the wiring board connection part is fixedly connected with the plug-in female head, and the wiring board detection part is arranged between the plug-in female head and the second opening. When the electric energy meter of the present invention needs to be detected, it is only necessary to extend the probe of the detection device into the second opening and press against the wiring board detection part to detect the electric energy meter, which is simple to operate and efficient.

[0021] The electric energy meter box of the present invention comprises a plug-in male connector which is plugged and matched with a plug-in female connector of the electric energy meter and connected to an external lead, thereby realizing rapid installation and wiring of the electric energy meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the electric energy meter of the present invention, showing the assembly relationship between the electric energy meter, the electric meter box, and the external wires;

[0023] Figure 2 It is a structural schematic diagram of the plug-in structure of the present invention, showing the assembly relationship between the female connector and the electric energy meter, the assembly relationship between the male connector and the bottom plate of the electric meter box, and the matching relationship between the female connector and the male connector;

[0024] Figure 3 It is a schematic diagram of the exploded structure of the plug-in structure of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the female head of the present invention;

[0026] Figure 5 is a schematic diagram of the structure of the female connector of the present invention, showing the angle α between the female connector outer arm and the female connector transition plate, and the angle β between the female connector transition plate and the female connector inner arm;

[0027] Figure 6 It is a structural schematic diagram of the clamping member of the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of the male plug of the present invention;

[0029] Figure 8 It is a structural schematic diagram of the housing body of the present invention;

[0030] Fig. 9 The structural schematic diagram of the bottom plate of the electric meter box of the present invention shows the assembly relationship between the male connector, the external connecting wire and the bottom plate of the electric meter box. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-8 The following embodiments are provided to further illustrate the specific implementation of the electric energy meter of the present invention. The electric energy meter of the present invention is not limited to the description of the following embodiments.

[0032] The electric energy meter of the present invention comprises an electric energy meter housing 1; the electric energy meter housing 1 comprises a housing body 1a and a terminal seat 1b; the terminal seat 1b is arranged at one end of the housing body 1a, the terminal seat 1b comprises a plurality of assembly cavities 14b arranged thereon, each assembly cavity 14b comprises an assembly top wall 141b provided with a first opening 10b and an assembly cavity opening 140b, the assembly top wall 141b and the assembly cavity opening 140b are respectively arranged at the upper and lower ends of the assembly cavity 14b, each assembly cavity 14b is provided with a plug female connector 3a connected to the internal circuit of the electric energy meter, and the plug female connector 3a is fixedly connected to the assembly top wall 141b; the housing body 1a comprises a main body opening arranged corresponding to the assembly cavity opening 140b.

[0033] The electric energy meter of the present invention has a terminal seat 1b of the electric energy meter housing 1 with an assembly cavity 14b, and a plug-in female connector 3a is provided in the assembly cavity 14b, which can be plugged with a plug-in male connector 4a on the electric energy meter box, thereby realizing plug-in fixation of the electric energy meter and improving the installation efficiency of the electric energy meter.

[0034] Preferably, the female connector 3a is used to plug and cooperate with the male connector 4a on the electric energy meter box to achieve fixed installation and power connection of the electric energy meter, which not only achieves efficient installation of the electric energy meter, but also realizes power connection of the electric energy meter, simplifies the wiring operation of the electric energy meter, and improves wiring efficiency.

[0035] like Figure 1-9 FIG. 1 is an embodiment of the electric energy meter of the present invention.

[0036] like Figure 1-2 As shown, the electric energy meter of the present invention comprises an electric energy meter housing 1, the electric energy meter housing 1 comprises a housing body 1a and a terminal seat 1b, the terminal seat 1b is arranged at one end of the housing body 1a, the terminal seat 1b comprises a plurality of assembly cavities 14b arranged thereon, a plug female head 3a connected to the internal circuit of the electric energy meter is arranged in the assembly cavity 14b, the plug female head 3a is used to be plugged with a plug male head 4a fixed on the electric energy meter box, so as to realize the fixing and power connection of the energy meter. Generally, the electric energy meter is divided into single-phase and three-phase types, wherein the terminal seat 1b of the single-phase electric energy meter is provided with four assembly cavities 14b, each of which is provided with a plug female head 3a, and the terminal seat 1b of the three-phase electric energy meter is provided with six assembly cavities 14b, each of which is provided with a plug female head 3a.

[0037] like Figure 2 and 3As shown, each of the assembly cavities 14b includes an assembly top wall 141b with a first opening 10b, an assembly cavity opening 140b, and a first side wall 142b with a second opening 11b. The assembly top wall 141b and the assembly cavity opening 140b are respectively arranged at the upper and lower ends of the assembly cavity 14b, and the first side wall 142b is arranged between the assembly top wall 141b and the assembly cavity opening 140b. The housing body 1a is provided with a main body opening corresponding to the assembly cavity opening 140b. During assembly, the female plug 3a enters the assembly cavity 14b from the assembly cavity opening 140b.

[0038] It should be pointed out that the terminal block 1b of the present invention can also be used to assemble a wiring frame, that is, the female plug 3a is not set in the assembly cavity 14b of the terminal block 1b, but the wiring frame is set in the assembly cavity 14b and the wiring frame is connected to the internal circuit of the electric energy meter, then the wiring screw passes through the first opening 10b and is threadedly connected to the wiring frame, and the external wire 9 passes through the second opening 11b and is connected to the wiring frame. Therefore, the structure of the terminal block 1a of the electric energy meter of the present invention enables the electric energy meter to be compatible with plug-in fixing and wiring, as well as the traditional wiring method through the wiring frame, and the user can choose according to different working conditions, so the electric energy meter of the present invention is more versatile.

[0039] Preferably, Figure 8 As shown, the main body opening is a plurality of jacks 12a arranged on the shell body 1a, and the jacks 12a are arranged one-to-one correspondingly to the assembly cavity opening 140b. The male plug plate 41a of the male plug 4a passes through the jacks 12a and the assembly cavity opening 140b in sequence and is plugged into and matched with the female plug 3a.

[0040] Preferably, Figure 3 As shown, the electric energy meter of the present invention further includes an electric energy meter wiring board 3d of an L-shaped structure, the electric energy meter wiring board 3d includes a wiring board detection portion 30d and a wiring board connection portion 31d connected by bending, the wiring board connection portion 31d is fixedly connected to the plug female 3a, and the wiring board detection portion 30d is arranged between the plug female 3a and the second opening 11b. When it is necessary to detect the electric energy meter of the present invention, it is only necessary to extend the probe of the detection device into the second opening 11b and press against the wiring board detection portion 30d to detect the electric energy meter, which is easy to operate and efficient.

[0041] It should be noted that the electric energy meter connection board 3d can connect the female connector 3a with the internal circuit of the electric energy meter, and the internal circuit includes components such as mutual inductors and relays.

[0042] Preferably, Figure 2-4As shown, the plug-in female connector 3a includes a female connector connecting plate 30a and two female connector clamping parts 31a, the two female connector clamping parts 31a are arranged opposite to each other and are respectively connected to the female connector connecting plate 30a by bending; the female connector clamping part 31a includes a female connector outer arm 311a, a female connector transition plate 312a and a female connector inner arm 313a, one end of the female connector outer arm 311a is connected to the female connector connecting plate 30a by bending, and the other end is connected to one end of the female connector transition plate 312a by bending, and the other end of the female connector transition plate 312a is connected to one end of the female connector inner arm 313a by bending; the two female connector outer arms 311a of the plug-in female connector 3a are arranged opposite to each other, and the two female connector inner arms 313a are arranged opposite to each other and are located between the two female connector outer arms 311a. Furthermore, a female connecting hole 300a is provided in the middle of the female connecting plate 30a, and the first screw 3b is connected to the female connecting hole 300a through the first opening 10b, thereby fixing the female connecting plate 30a and the assembly top wall 141b together.

[0043] Preferably, Figure 4 and 5 As shown, the connection between the female transition plate 312a and the female inner arm 313a is the first connection part, and the two first connection parts of the plug-in female 3a are connected in a line contact manner. From the free end of the female inner arm 313a to the first connection part, the distance between the two female inner arms 313a gradually decreases, and the end of the female transition plate 312a connected to the female inner arm 313a is higher than the end of the female transition plate 312a connected to the female outer arm 311a. A socket 32a is formed between the two female transition plates 312a of the plug-in female 3a to facilitate the insertion of the plug-in male 4a. Further, as Figure 4 and 5 As shown, a gap is provided between the free ends of the two female inner arms 313a of the plug-in female connector 3a, and the width of the gap is smaller than the thickness of the male connector plug plate 41a of the plug-in male connector 4a.

[0044] Specifically, Figure 2-5 FIG. 1 is a preferred embodiment of the female connector 3a of the present invention.

[0045] The plug-in female connector 3a includes a female connector plate 30a and two female connector clamping portions 31a. The female connector plate 30a is provided with a female connector hole 300a. The two female connector clamping portions 31a are arranged opposite to each other and are respectively connected at right angles to the two ends of the female connector plate 30a. The female connector clamping portion 31a includes a female outer arm 311a, a female transition plate 312a and a female inner arm 313a. The upper end of the female outer arm 311a is connected at a right angle to the end of the female connector plate 30a, and the lower end is connected to the lower end of the female transition plate 312a by bending. The angle between the female outer arm 311a and the female transition plate 312a is α, α<90°. The upper end of the female transition plate 312a is connected to the lower end of the female inner arm 313a by bending. The angle between the female transition plate 312a and the female inner arm 313a is is β, β>90°, the connection between the female transition plate 312a and the female inner arm 313a is the first connection part, and the two first connection parts of the plug-in female 3a are connected in line contact, that is, the lower ends of the two female inner arms 313a are connected in line contact, the upper ends of the two female inner arms 313a are opened at a certain angle, and a gap is formed at the upper ends of the two female inner arms 313a, and the width of the gap is less than the thickness of the male plug plate 41a of the plug-in male 4a, the upper ends of the two female transition plates 312a are connected in line contact, and the lower ends of the two female transition plates 312a are opened at a certain angle, so that the two female transition plates 312a are formed into a ridge-shaped structure as a whole, and a socket 32a is formed between the two female transition plates 312a for easy insertion of the plug-in male 4a.

[0046] The plug-in female connector 3a of the present invention has the following technical effects: the socket 32a facilitates the insertion of the male plug-in board 41a of the plug-in male connector 4a between the two female inner arms 313a of the plug-in female connector 3a, thereby facilitating the assembly of the plug-in female connector 3a and the plug-in male connector 4a; the lower ends of the two female inner quilts 313a are connected in a line contact manner, and the width of the gap between the upper ends of the two female inner arms 313a is smaller than the thickness of the male plug-in board 41a. When the male plug-in board 41a is inserted between the two female inner arms 313a, the female outer arm 311a is forced to undergo elastic deformation, so that the relative positions of the two female inner arms 313a undergo adaptive changes, thereby making the two female inner arms 313a basically parallel to the male plug-in board 41a, thereby increasing the contact area between the female inner arms 313a and the male plug-in board 41a, which is beneficial to reducing the contact resistance between the female inner arms 313a and the male plug-in board 41a, so as to reduce the current resistance.

[0047] like Figure 2 , 3As shown in Figure 6, the electric energy meter of the present invention also includes a clamping member 3c, which includes two clamping arms 30c arranged opposite to each other. The two clamping arms 30c of the clamping member 3c are respectively arranged on both sides of the two female inner arms 313a of the female plug 3a, and the clamping arms 30c are arranged in parallel with the upper ends of the female inner arms 313a to clamp the two female inner arms 313a. The clamping member 3c is conducive to further improving the contact force between the female inner arms 313a of the female plug 3a and the male plug board 41a of the male plug 4a, and further improving the contact area between the female inner arms 313a and the male plug board 41a, thereby further reducing the contact resistance between the female inner arms 313a and the male plug board 41a, so as to reduce the current resistance.

[0048] Preferably, Figure 6 As shown, the clamping member 3c is a U-shaped structure, and each clamping arm 30c of the clamping member 3c is a U-shaped structure, including a first clamping arm 300c and a second clamping arm 301c arranged opposite to each other, and the two second clamping arms 301c of the clamping member 3c are arranged on the same side of the clamping member 3c. The clamping arm 30c is a U-shaped structure, which further improves the elasticity and fatigue resistance of the clamping member 3c.

[0049] Preferably, Figure 6 As shown, the clamping member 3c is made of a strip elastic material, the side of the strip elastic material is composed of an arc surface and a plane, and in particular, the cross section of the strip elastic material is generally a D-shaped structure. Further, the strip elastic material is made of metal, and the clamping member 3c is formed by bending the strip elastic material.

[0050] like Figure 6 FIG. 1 is a preferred embodiment of the clamping member 3c of the present invention.

[0051] The clamping member 3c is formed by bending a metal strip elastic material, and the cross-section of the metal strip elastic material is a D-shaped structure. The clamping member 3c is a U-shaped structure, which includes two clamping arms 30c arranged opposite to each other, and each clamping arm 30c is a U-shaped structure, including a first clamping arm 300c and a second clamping arm 301c arranged opposite to each other. The two first clamping arms 300c of the clamping member 3 are bent and connected, and the two second clamping arms 301c are arranged on the same side of the clamping member 3, and the planes of the two first clamping arms 300c are arranged opposite to each other, and the planes of the two second clamping arms 301c are arranged opposite to each other. When the clamping member 3c clamps the female inner arm 313a of the plug-in female connector 3a, the planes of the first clamping arm 300c and the second clamping arm 301c are in contact and connected with the outer side surface of the female inner arm 313.

[0052] like Figure 1-3 FIG. 1 is an embodiment of an electric energy meter housing 1 of the present invention.

[0053] The electric energy meter housing 1 includes a housing body 1a and a terminal seat 1b, wherein the terminal seat 1b is arranged at one end of the housing body 1a; a terminal seat assembly groove 10a is arranged at one end of the housing body 1a, and a main body opening is arranged on the bottom wall of the terminal seat assembly groove 10a, and external limit grooves 113a are arranged on the side walls at both ends of the terminal seat assembly groove 10a, and an external clamping platform 110a is arranged on one side of each external limit groove 113a; internal limit columns 13b and internal limit grooves 133b are arranged at both ends of the terminal seat 1b, and the internal limit columns 13b include relatively arranged first An inner limit column 131b and a second inner limit column 132b, an inner limit groove 133b is arranged on one side of the first inner limit column 131b, an inner clamping platform 130b is arranged in the middle of the inner limit groove 133b, the first inner limit column 131b and the second inner limit column 132b are respectively limited with the two ends of the outer limit groove 113a to limit the relative translation between the terminal seat 1b and the shell body 1a, and the outer clamping platform 110a is inserted in the inner limit groove 133b and limited with the inner clamping platform 130b to limit the terminal seat 1b from being pulled out of the terminal seat assembly groove 10a. The electric energy meter shell 1 of the present invention has a simple assembly structure between the shell body 1a and the terminal seat 1b, and ensures reliable cooperation between the two, and a full range of relative movement between the shell body 1a and the terminal seat 1b.

[0054] Preferably, a guiding slope is provided at the upper end of the outer card platform 110a to facilitate the cooperation between the inner card platform 130b and the outer card platform 110a.

[0055] like Figure 8 FIG. 1 is a preferred embodiment of the housing body 1 a of the present invention.

[0056] like Figure 8 As shown, the shell body 1a is a box-shaped structure, and a terminal seat assembly groove 10a is provided at its lower end. External limit grooves 113a are provided on the left and right side walls of the terminal seat assembly groove 10a. The limit grooves 113a extend from the bottom to the top of the terminal seat assembly groove 10a. An external card platform 110a is provided on the left side wall of the terminal seat assembly groove 10a. The external card platform 110a is located on the upper side of the external limit groove 110a. Four sockets 12a are arranged side by side on the bottom wall of the terminal seat assembly groove 10a, and the four sockets 12a are spaced apart from each other. The bottom wall of the terminal seat assembly groove 10a can cover the assembly cavity opening 140b of the terminal seat 1a, which is beneficial to further improve the insulation between the phases of the electric energy meter and protect the plug-in female connector 3a. In addition, the male connector plate 41a of the plug-in male connector 4a passes through the socket 12a and is plugged into the plug-in female connector 3a, which is beneficial to improve the strength of the assembly structure between the electric energy meter and the meter box bottom plate 2 of the electric energy meter box, and further ensure the reliability and stability of the electric energy meter assembly.

[0057] like Figure 2 and 3 The figure shows a preferred implementation of the terminal block 1b of the present invention.

[0058] like Figure 2 As shown, the lower part of the terminal block 1b is provided with four assembly cavities 14b in parallel, an insulating side wall 143b is provided between adjacent assembly cavities 14b, an assembly top wall 141b is provided at the upper end of the assembly cavity 14b, a first opening 10b is provided on the assembly top wall 141b, and an assembly cavity opening 140b is provided at the lower end of the assembly cavity 14b; Figure 3 As shown, the assembly cavity 14b includes a first side wall 142b, the first side wall 142b is located between the assembly top wall 141b and the assembly cavity opening 140b and is located on the front side of the terminal seat 1b, and a second opening 11b is provided on the first side wall 142b; the left end side wall and the right end side wall of the assembly cavity 14b are provided with an inner limit column 13b and an inner limit groove 133b, the inner limit column 13b includes a first inner limit column 131b and a second inner limit column 132b arranged in parallel and spaced apart, the inner limit groove 133b is arranged on the rear side of the first inner limit column 131b, and an inner clamping platform 130b is provided in the middle of the inner limit groove 133b, and the first inner limit column 131b, the second inner limit column 132b and the inner limit groove 133b all extend from the bottom side to the top side of the terminal seat 1b.

[0059] Preferably, Figure 2 and 3 As shown, the upper side of the assembly cavity 14b is provided with an auxiliary terminal assembly structure 12b, the middle of the auxiliary terminal assembly structure 12b is provided with an auxiliary terminal assembly hole 120b, and the auxiliary terminal 12 is arranged in the auxiliary terminal assembly hole 120b. Figure 2 and 3 As shown, an auxiliary terminal assembly structure 12b is provided between the two assembly cavities 14b on the left, and an auxiliary terminal assembly structure 12b is provided between the two assembly cavities 14b on the right.

[0060] like Figure 1 , 2 As shown in FIG. 9 , the present invention further discloses an electric energy meter box, which includes a plurality of male plugs 4a arranged on the electric energy meter box, each male plug 4a is plugged into and matched with a female plug 3a of the electric energy meter, and the male plug 4a is connected to an external wire 9.

[0061] like Fig. 9As shown, the electric energy meter box includes a meter box bottom plate 2, and the plug-in male plug 4a includes a male connecting plate 40a and a male plugging plate 41a that are bent and connected to each other. The male connecting plate 40a is provided with a male connecting hole 400a, the male connecting plate 40a is fixedly connected to the meter box bottom plate 2, and the male plugging plate 41a is plugged and matched with the plug-in female plug 3a; the meter box bottom plate 2 includes a bottom plate assembly platform 20 and a plurality of bottom plate insulating partitions 21, the bottom plate assembly platform 20 is protrudingly arranged on one side of the meter box bottom plate 2, the second screw 4b passes through the male connecting hole 400a and is connected to the bottom plate assembly platform 20, fixing the male connecting plate 40a and the bottom plate assembly platform 20 together, the external connecting wire 9 is connected to the male connecting plate 40a through the second screw 4, and the plurality of bottom plate insulating partitions 21 are arranged in parallel and spaced apart to separate adjacent plug-in male plugs 4a.

[0062] The electric energy meter box of the present invention comprises a plug-in male connector which is plugged and matched with a plug-in female connector of the electric energy meter and connected to an external lead, thereby realizing rapid installation and wiring of the electric energy meter.

[0063] It should be pointed out that the electric energy meter of the present invention is not limited to the assembly of the plug-in female connector 3a, and the electric energy meter box is not limited to the assembly of the plug-in male connector 4a. The plug-in male connector 4a can also be arranged in the assembly cavity 14b of the terminal seat 1b of the electric energy meter, and the male connector connecting plate 41a of the plug-in male connector 4a is connected to the assembly top wall of the assembly cavity 14b, and the plug-in female connector 3a is arranged on the bottom plate assembly platform 20 of the bottom plate 2 of the meter box, and the second screw 4a fixes the plug-in female connector 3a to the bottom plate assembly platform 20 through the female connector connecting plate 30a.

[0064] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. An electric energy meter, comprising an electric energy meter housing (1); characterized in that: The electric energy meter housing (1) comprises a housing body (1a) and a terminal seat (1b); the terminal seat (1b) is arranged at one end of the housing body (1a); the terminal seat (1b) comprises a plurality of assembly cavities (14b) arranged thereon; each assembly cavity (14b) comprises an assembly top wall (141b) provided with a first opening (10b) and an assembly cavity opening (140b); the assembly top wall (141b) and the assembly cavity opening (140b) are arranged at the upper and lower ends of the assembly cavity (14b), respectively; each assembly cavity (14b) is provided with a plug female connector (3a) connected to the internal circuit of the electric energy meter; the plug female connector (3a) is fixedly connected to the assembly top wall (141b); the housing body (1a) comprises a main body opening arranged corresponding to the assembly cavity opening (140b); The plug-in female connector (3a) comprises a female connector connecting plate (30a) and two female connector clamping parts (31a), wherein the two female connector clamping parts (31a) are arranged opposite to each other and are respectively connected to the female connector connecting plate (30a) by bending; the female connector clamping part (31a) comprises a female connector outer arm (311a), a female connector transition plate (312a) and a female connector inner arm (313a), wherein one end of the female connector outer arm (311a) is connected to the female connector connecting plate (30a) by bending, and the other end is connected to one end of the female connector transition plate (312a) by bending, and the other end of the female connector transition plate (312a) is connected to the female connector inner arm (313a) by bending. The two ends are bent and connected; the two female outer arms (311a) of the plug-in female connector (3a) are arranged opposite to each other, and the two female inner arms (313a) are arranged opposite to each other and are located between the two female outer arms (311a); the electric energy meter also includes a clamping member (3c), the clamping member (3c) includes two clamping arms (30c) arranged opposite to each other, the two clamping arms (30c) of the clamping member (3c) are respectively arranged on both sides of the two female inner arms (313a) of the plug-in female connector (3a), and the clamping arms (30c) are arranged parallel to the upper ends of the female inner arms (313a) to clamp the two female inner arms (313a).

2. The electric energy meter according to claim 1, characterized in that: The assembly cavity (14b) further comprises a first side wall (142b) provided with a second opening (11b), and the first side wall (142b) is arranged between the assembly top wall (141b) and the assembly cavity opening (140b); The invention also comprises an L-shaped electric energy meter wiring board (3d), the electric energy meter wiring board (3d) comprising a wiring board detection portion (30d) and a wiring board connection portion (31d) connected by bending, the wiring board connection portion (31d) being fixedly connected to the plug female head (3a), and the wiring board detection portion (30d) being arranged between the plug female head (3a) and the second opening (11b).

3. The electric energy meter according to claim 1, characterized in that: The female plug connector (3a) is used for plugging and matching with the male plug connector (4a) fixed on the meter box of the electric energy meter, so as to fix and connect the electric energy meter.

4. The electric energy meter according to claim 1, characterized in that: The connection between the female transition plate (312a) and the female inner arm (313a) is a first connection portion. From the free end of the female inner arm (313a) to the first connection portion, the distance between the two female inner arms (313a) gradually decreases. The end of the female transition plate (312a) connected to the female inner arm (313a) is higher than the end of the female transition plate (312a) connected to the female outer arm (311a). A socket (32a) for facilitating the insertion of the male connector (4a) is formed between the two female transition plates (312a) for plugging in the female connector (3a). When the male plug plate (41a) of the male plug (4a) is inserted between the two female inner arms (313a), the female outer arms (311a) are forced to undergo elastic deformation, causing the relative positions of the two female inner arms (313a) to change adaptively, thereby making the two female inner arms (313a) basically parallel to the male plug plate (41a).

5. The electric energy meter according to claim 4, characterized in that: The plug-in male connector (4a) comprises a male connector plug plate (41a), and a gap is arranged between the free ends of the two female connector inner arms (313a) of the plug-in female connector (3a), wherein the width of the gap is smaller than the thickness of the male connector plug plate (41a).

6. The electric energy meter according to claim 1, characterized in that: A female connection hole (300a) is provided in the middle of the female connection plate (30a); the upper end of the female outer arm (311a) is connected to the female connection plate (30a) at a right angle, and the lower end is connected to the lower end of the female transition plate (312a) by bending; the angle between the female outer arm (311a) and the female transition plate (312a) is α, α<90°; the upper end of the female transition plate (312a) is connected to the lower end of the female inner arm (313a) by bending; the angle between the female transition plate (312a) and the female inner arm (313a) is β, β>90°.

7. The electric energy meter according to claim 1, characterized in that: The clamping arm (30c) is a U-shaped structure, comprising a first clamping arm (300c) and a second clamping arm (301c) which are arranged opposite to each other.

8. The electric energy meter according to claim 2, characterized in that: Adjacent assembly cavities (14b) are insulated and spaced apart from each other, and a first screw (3b) passes through a first opening (10b) to connect a female connector plate (30a) of a plug-in female connector (3a), an electric energy meter wiring board (3d) and an assembly top wall (141b).

9. The electric energy meter according to claim 1, characterized in that: When a wiring frame is arranged in the assembly cavity (14b) to replace the female plug (3a), the wiring screw passes through the first opening (10b) and is threadedly connected to the wiring frame, and the external wire (9) passes through the second opening (11b) and is connected to the wiring frame.

10. The electric energy meter according to claim 1, characterized in that: A terminal seat assembly groove (10a) is provided at one end of the shell body (1a), a main body opening is provided on the bottom wall of the terminal seat assembly groove (10a), external limit grooves (113a) are provided on the side walls at both ends of the terminal seat assembly groove (10a), and an external clamping platform (110a) is provided on one side of each external limit groove (113a); internal limit columns (13b) and internal limit grooves (133b) are provided at both ends of the terminal seat (1b), and the internal limit columns (13b) include a first internal limit column (131b) and a second internal limit column (132b) arranged opposite to each other, and the internal limit columns (131b) and the second internal limit column (132b) are provided opposite to each other. The limiting groove (133b) is arranged on one side of the first inner limiting column (131b); an inner clamping platform (130b) is arranged in the middle of the inner limiting groove (133b); the first inner limiting column (131b) and the second inner limiting column (132b) respectively cooperate with the two ends of the outer limiting groove (113a) to limit the relative translation between the terminal seat (1b) and the shell body (1a); the outer clamping platform (110a) is inserted into the inner limiting groove (133b) and cooperates with the inner clamping platform (130b) to limit the terminal seat (1b) from being pulled out of the terminal seat assembly groove (10a).

11. An electric energy meter box, characterized in that: It comprises a plurality of male plugs (4a) arranged on an electric energy meter box, the male plugs (4a) are plugged into and matched with the female plugs (3a) of the electric energy meter according to any one of claims 1 to 10, and the male plugs (4a) are connected to an external wire (9).

12. The electric energy meter box according to claim 11, characterized in that: The electric energy meter box comprises a meter box bottom plate (2); the plug-in male connector (4a) comprises a male connector connecting plate (40a) and a male connector plug plate (41a) connected by bending; the male connector connecting plate (40a) is provided with a male connector connecting hole (400a); the male connector connecting plate (40a) is fixedly connected to the meter box bottom plate (2); the male connector plug plate (41a) is plugged and matched with the plug-in female connector (3a); the meter box bottom plate (2) comprises a bottom plate assembly platform (20) and a plurality of bottom plate insulating partitions ( 21), a bottom plate assembly platform (20) is protrudingly arranged on one side of the bottom plate (2) of the meter box, a second screw (4b) passes through the male head connection hole (400a) and is connected to the bottom plate assembly platform (20), the male head connection plate (40a) and the bottom plate assembly platform (20) are fixed together, the external connection wire (9) is connected to the male head connection plate (40a) through the second screw (4b), and a plurality of bottom plate insulating partitions (21) are arranged in parallel and spaced apart to separate adjacent plug-in male heads (4a).

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