CN205374551U - Electric energy meter clearance fit connector - Google Patents

Abstract

The utility model provides a clearance fit connector for an electric energy meter. The clearance fit connector for an electric energy meter comprises: a base, and a plugging mechanism is fixedly installed at the end of the base; the plugging mechanism includes a housing, n plugs, and n cables and n first fasteners; in addition, after each plug of the plug-in mechanism is inserted into the corresponding slot of the installed electric energy meter 5, the second fastener configured by the electric energy meter is fastened to make the plug and the installed electric energy meter 5 to form an electrical connection; wherein, the plug and the corresponding slot of the installed electric energy meter 5 are clearance fit. The utility model has the following advantages: the utility model can enable the user to quickly and accurately connect the live wire or the neutral wire to the electric energy meter, and has the advantages of convenient and fast installation of the electric energy meter, thereby preventing wrong wiring and ensuring the safety of electrical connection; A good electrical connection is formed between the plug and the live wire or the neutral wire to avoid problems such as poor wiring and ensure reliable power supply to users; it also saves the time for users to connect.

Description

Energy meter clearance fit connector

technical field

The utility model belongs to the technical field of electric energy meter installation and design, and in particular relates to a clearance fit connector for an electric energy meter.

Background technique

An electric energy meter is an instrument used to measure electric energy, also known as an electric watt-hour meter, a fire meter or a kilowatt-hour meter, etc. It is widely used in the field of power supply for users or enterprises.

In the prior art, when installing the electric energy meter, the user mainly adopts the following operations: it is necessary to strip the cable at the head end of the live wire or the neutral wire for a certain distance to expose the electric core; then, insert the electric core into the corresponding plug of the electric energy meter. Finally, turn the crimping screw on the watt-hour meter to make the crimping screw accurately press the battery core instead of the cable sheath, so that the live wire or neutral wire is electrically connected to the watt-hour meter.

The main problems with the above operations are:

(1) During the actual operation, there is a problem that the user cannot accurately distinguish the live wire or the neutral wire, and it is easy to insert the live wire or the neutral wire into the wrong slot of the electric energy meter, which will cause the electric energy meter to fail to work normally. ACCIDENT.

(2) During the operation of stripping the head end of the live wire or the neutral wire to expose the battery core, the length of the stripped battery core is required to be high. If the length of the battery core is too long, it will cause the battery core to be inserted into the slot. When the battery is inserted into the slot, some batteries may be located outside the slot, which may lead to accidents; and if the length of the battery is too short, the wire crimping screw cannot press the battery accurately when the battery is inserted into the slot, resulting in wiring failure. bad situation.

Utility model content

Aiming at the defects in the prior art, the utility model provides a clearance fit connector for an electric energy meter, which can effectively solve the above problems.

The technical scheme that the utility model adopts is as follows:

The utility model provides a clearance fit connector for an electric energy meter, comprising: a base (1), the base (1) is provided with an accommodating groove (2) for placing the electric energy meter; institution(3);

Wherein, the plug-in mechanism (3) includes a housing (3.1), n plugs (3.2), n cables (3.3) and n first fasteners (3.4); the housing (3.1) is provided with n The cavity (3.5), the tail end of each plug (3.2) and the head end of a corresponding cable (3.3) are placed in a cavity (3.5), and fastened by a corresponding first part (3.4), so that the head end of a cable (3.3) corresponding to the tail end of the plug (3.2) forms an electrical connection; wherein, n is a natural number, and the number of n is the same as the number of slots of the installed electric energy meter 5 equal;

In addition, after each plug (3.2) of the plug-in mechanism (3) is inserted into the corresponding slot of the electric energy meter 5 to be installed, the second fastener (4) configured by the electric energy meter is fastened, so that the plug (3.2) and the electric energy meter are connected. The electric energy meter 5 is installed to form an electrical connection; wherein, the plug (3.2) is clearance fit with the corresponding slot of the installed electric energy meter 5 .

Preferably, the plug-in mechanism (3) further includes a protective plate (3.6); the protective plate (3.6) is fixedly installed on the top of the housing (3.1).

Preferably, when the installed electric energy meter is a single-phase electric energy meter, n is equal to 4; when the installed electric energy meter is a three-phase electric energy meter, n is equal to seven.

Preferably, the n cables (3.3) include two arrangements, namely the arrangement of wiring behind the board and the arrangement of wiring in front of the board;

The wiring arrangement behind the board refers to: a through hole (1.1) is opened in the middle of the base (1), and the tail ends of n cables (3.3) pass through the through hole (1.1), so that the n cables (3.3) ) is located below the base (1) and extends backward;

The wiring arrangement in front of the board means that the tail ends of the n cables (3.3) extend directly to the front opposite to the electric energy meter.

Preferably, the shape of the plug (3.2) is oval or semicircular.

The electric energy meter gap fit connector provided by the utility model has the following advantages:

The utility model can enable the user to quickly and accurately connect the live wire or the neutral wire to the electric energy meter, and has the advantages of convenient and fast installation of the electric energy meter, thereby preventing wrong wiring and ensuring the safety of electrical connection; Or the neutral line forms a good electrical connection, avoids problems such as poor wiring, and ensures reliable power supply to users; it also saves the time for users to connect.

Description of drawings

Fig. 1 is a structural schematic diagram of a gap-fit connector suitable for installing a single-phase electric energy meter provided by the utility model and wiring behind the board;

Fig. 2 is a schematic diagram of the structure of the plug-in mechanism in Fig. 1 when no cables are installed;

Fig. 3 is a schematic diagram of the state where the cable and the plug are fastened by the first fastener in Fig. 1;

Fig. 4 is a schematic structural diagram of the plug in Fig. 1;

Fig. 5 is a schematic diagram of the combination state of the clearance fit connector of Fig. 1 and the electric energy meter and the electric energy meter cover is not installed;

Fig. 6 is a schematic diagram when Fig. 5 is equipped with an electric energy meter cover;

Fig. 7 is a schematic diagram of the combination state of the clearance fit connector and the electric energy meter and the electric energy meter cover is installed;

Fig. 8 is a sectional view along A-A of Fig. 7;

Fig. 9 is a structural schematic diagram of a gap-fit connector suitable for installing a single-phase electric energy meter provided by the utility model and wiring in front of the board;

Fig. 10 is a schematic diagram of the state where the cable and the plug are fastened by the first fastener in Fig. 9;

Fig. 11 is a schematic structural diagram of the plug in Fig. 9;

Fig. 12 is a schematic diagram of a single-phase electric energy meter and a gap-fit connector of the wiring in front of the board in a combined state;

Fig. 13 is a sectional view along B-B of Fig. 12;

Fig. 14 is a structural schematic diagram of a gap-fit connector suitable for installing a three-phase electric energy meter provided by the utility model and wiring in front of the board;

Fig. 15 is a schematic diagram of the state where the cable and the plug are fastened by the first fastener in Fig. 14;

Fig. 16 is a schematic structural diagram of the plug in Fig. 14;

Fig. 17 is a schematic diagram of the state where the clearance fit connector of Fig. 14 is combined with the electric energy meter and the electric energy meter cover is not installed;

Fig. 18 is a schematic diagram of Fig. 17 when an electric energy meter cover is added.

detailed description

In order to make the technical problems, technical solutions and beneficial effects solved by the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

The utility model provides a gap-fit connector for an electric energy meter. Referring to FIG. 1, it is a structural schematic diagram of a gap-fit connector suitable for installing a single-phase electric energy meter and wiring behind the board, including: a base 1, which is provided with a The accommodation slot 2 for placing the electric energy meter; the plug-in mechanism 3 is fixedly installed at the end of the base 1;

Referring to Fig. 2, it is a schematic diagram of the structure of the plug-in mechanism in Fig. 1 when no cables are installed. The plug-in mechanism 3 includes a housing 3.1, n plugs 3.2, n cables 3.3 and n first fasteners 3.4; The body 3.1 is provided with n cavities 3.5, the tail end of each plug 3.2 and the head end of a corresponding cable 3.3 are placed in a cavity 3.5, and pass through a corresponding first fastener 3.4 Tighten, so that the head end of a cable 3.3 corresponding to the tail end of the plug 3.2 forms an electrical connection; refer to Figure 3, which is a schematic diagram of the cable and the plug in Figure 1 being fastened by the first fastener; refer to Figure 4 is a schematic structural diagram of the plug in FIG. 1 . Wherein, n is a natural number, and the number of n is equal to the number of slots where the electric energy meter 5 is installed. For example, when the installed electric energy meter is a single-phase electric energy meter, n is equal to 4, and the four cables represented are: the incoming terminal of the live wire, the outgoing terminal of the live wire, the incoming terminal of the neutral wire and the outgoing terminal of the neutral wire; When the installed electric energy meter is a three-phase electric energy meter, n is equal to 7, and the seven cables represented are: U-phase electric incoming terminal, U-phase electric outgoing terminal, V-phase electric incoming terminal, V-phase electric outgoing terminal, W-phase power incoming terminal, W-phase power outgoing terminal and neutral wire.

In addition, after each plug 3.2 of the plug-in mechanism 3 is inserted into the corresponding slot of the installed electric energy meter 5, the second fastener 4 configured by the electric energy meter is fastened, so that the plug 3.2 is electrically connected to the installed electric energy meter 5; Wherein, the plug 3.2 is clearance fit with the corresponding slot of the electric energy meter 5 to be installed. Referring to Fig. 5, it is a schematic diagram of the combination state of the clearance fit connector of Fig. 1 and the electric energy meter and the electric energy meter cover is not installed; referring to Fig. 6, it is a schematic diagram when the electric energy meter cover is installed in Fig. 5 . Referring to FIG. 7 , it is a schematic diagram of the combination state of the clearance fit connector and the electric energy meter and the electric energy meter cover is installed; referring to FIG. 8 , it is a cross-sectional view along A-A of FIG. 7 . It can be clearly seen from Fig. 8 that under the fastening effect of the second fastener 4 configured on the electric energy meter, the plug is fastened in the corresponding slot of the electric energy meter, and, as can be seen from Fig. 8, the plug 3.2 and the The corresponding slot of the installed electric energy meter 5 is clearance fit.

On the basis of the above, the utility model also carries out the following improvements:

Improvement 1:

The plugging mechanism 3 also includes a protective plate 3.6; the protective plate 3.6 is fixedly installed on the top of the housing 3.1, and the protective plate is installed to prevent the plug from being touched when the live operation is performed, thereby causing electric shock and ensuring safety during operation.

Improvement 2:

In the present utility model, the n cables 3.3 may include two layouts, respectively, the wiring layout behind the panel and the wiring layout in front of the panel; the wiring layout behind the panel refers to: a through hole is opened in the middle of the base 1 1.1, the tail ends of n cables 3.3 pass through the through hole 1.1, so that the n cables 3.3 are located under the base 1 and extend backwards; the wiring arrangement before the board refers to: the tail ends of n cables 3.3 Extend directly to the front opposite to the energy meter.

In the accompanying drawings of the present utility model, Fig. 1-Fig. 8 are structural diagrams corresponding to the single-phase electric energy meter and the components in the state of wiring behind the board; Fig. 9-Fig. 13 are corresponding to the single-phase electric energy meter and are Schematic diagram of the structure of each component in the state of wiring before the board; Figure 14-Figure 18 is a schematic diagram of the structure of each component corresponding to the three-phase electric energy meter and in the state of wiring in front of the board. Specifically, Fig. 9 is a structural schematic diagram of a clearance-fit connector suitable for installing a single-phase electric energy meter provided by the utility model and wiring before the board; Fig. 10 is a fastening of the cable and the plug by the first fastener in Fig. 9 Figure 11 is a schematic diagram of the structure of the plug in Figure 9; Figure 12 is a schematic diagram of the single-phase electric energy meter and the gap-fit connector of the front wiring in the combined state; Figure 13 is a cross-sectional view along B-B of Figure 12; 14 is a structural schematic diagram of a gap-fit connector suitable for installing a three-phase electric energy meter provided by the utility model and wiring in front of the board; FIG. 15 is a schematic diagram of the state where the cable and the plug are fastened by the first fastener in FIG. 14 ; Figure 16 is a schematic diagram of the structure of the plug in Figure 14; Figure 17 is a schematic diagram of the joint state of the clearance fit connector and the electric energy meter in Figure 14 and the electric energy meter cover is not installed; Figure 18 is when the electric energy meter cover is installed in Figure 17 schematic diagram.

In practical application, regardless of the single-phase electric energy meter or the three-phase electric energy meter, the gap fit connector can be set as the wiring behind the board or the wiring in front of the board. The specific wiring method is adjusted according to the actual construction process. The new type does not limit this.

Improvement 3:

For plug 3.2, its shape can be designed as oval or semicircular. For example, FIG. 4 is a schematic structural diagram of an oval plug; FIG. 11 is a schematic structural diagram of a semicircular plug; FIG. 16 is a schematic structural diagram of another semicircular plug. In each drawing of the utility model, when adopting the wiring arrangement behind the board, the plug is designed as an ellipse; when adopting the wiring arrangement before the board, the plug is designed as a semicircle.

The utility model also provides a clearance fit installation method for an electric energy meter, which includes the following steps:

Step 1, place the electric energy meter in the receiving slot 2 of the base 1, and at the same time, insert the n plugs 3.2 of the plug-in mechanism 3 into the corresponding slots of the electric energy meter, so that the plugs 3.2 and the slots are in clearance fit;

Step 2, on the one hand, rotate the second fastener 4 configured by the electric energy meter, and through the pressing action of the second fastener 4, the plug 3.2 is fastened in the slot of the electric energy meter, and finally the plug 3.2 is connected with the installed electric energy The meter 5 is electrically connected; on the other hand, the housing of the electric energy meter is fixed in the receiving groove 2 of the base 1 .

It can be seen that for the clearance fit connector provided by the utility model, since each cable has been connected with the corresponding plug in advance, after the clearance fit connector is sold to the user, after the user uses the gap provided by the utility model In the process of mating the connectors, the installation direction of the electric energy meter is directly limited by the arrangement of the base accommodation groove of the clearance fit connector, therefore, the user only needs to place the electric energy meter in the accommodation groove 2 of the base 1 in a certain direction, that is, Each plug of the plug-in mechanism can be quickly inserted into the corresponding slot of the electric energy meter, and then the fastener is operated to realize the purpose of connecting the live wire or the neutral wire to the electric energy meter.

To sum up, the advantages of the electric energy meter gap fit connector and the electric energy meter gap fit installation method provided by the utility model are as follows:

(1) Since the live and neutral wires in the gap-fit connector are electrically connected to the corresponding plugs, and the arrangement of the plugs is consistent with the arrangement of the electric energy meter slots, the user only needs to simply adjust the installation of the electric energy meter Direction, you can quickly and correctly insert each plug into the corresponding slot of the electric energy meter, on the one hand, avoid the occurrence of wrong wiring, and ensure the normal operation of the electric energy meter; on the other hand, the user does not need to strip the cable end The outer skin reduces the cumbersomeness of user wiring.

(2) When inserting the plug into the corresponding slot of the electric energy meter, since the length of the plug is equal to the depth of the electric energy meter slot, it is convenient to insert the slot in place to ensure that the crimping fastener is accurately pressed to the plug to prevent In the case of poor wiring, it also has the advantage of easy operation.

The above are only preferred embodiments of the present utility model, and it should be pointed out that for those of ordinary skill in the art, some improvements and modifications can also be made without departing from the principles of the present utility model. It should be regarded as the protection scope of the present utility model.

Claims (5)

1. an electric energy meter matched in clearance connector, it is characterised in that including: base (1), base (1) offers the holding tank (2) for placing electric energy meter；It is installed with plug-in connection (3) in the end of base (1)；

Wherein, plug-in connection (3) includes housing (3.1), n plug (3.2), n cable (3.3) and n the 1st securing member (3.4)；Housing (3.1) is provided with n cavity (3.5), the head end of the tail end of each plug (3.2) and 1 corresponding cable (3.3) is placed in 1 cavity (3.5), and by 1 corresponding the 1st securing member (3.4) fastening, make the head end of 1 cable (3.3) that the tail end of plug (3.2) is corresponding form electrical connection；Wherein, n is natural number, and the quantity of n is equal with the slot quantity of mounted electric energy meter 5；

Additionally, after each plug (3.2) of plug-in connection (3) is inserted into the corresponding slot of mounted electric energy meter 5, by the 2nd securing member (4) fastening that electric energy meter configures, make plug (3.2) be formed with mounted electric energy meter 5 and electrically connect；Wherein, plug (3.2) is matched in clearance with the corresponding slot of mounted electric energy meter 5.

2. electric energy meter matched in clearance connector according to claim 1, it is characterised in that plug-in connection (3) also includes protective plate (3.6)；Protective plate (3.6) is fixedly installed in above housing (3.1).

3. electric energy meter matched in clearance connector according to claim 1, it is characterised in that when mounted electric energy meter is single-phase electric energy meter, n is equal to 4；When mounted electric energy meter is three-phase electric energy meter, n is equal to 7.

4. electric energy meter matched in clearance connector according to claim 1, it is characterised in that n cable (3.3) includes two kinds of arrangements, respectively cabling arrangement before cabling arrangement and plate after plate；

After plate, cabling arrangement refers to: offer through hole (1.1) at the middle part of base (1), tail end traverse through hole (1.1) of n cable (3.3), and then make n cable (3.3) be positioned at below base (1), and extend back；

Before plate, cabling arrangement refers to: the tail end of n cable (3.3) directly extends to the front contrary with electric energy meter.

5. electric energy meter matched in clearance connector according to claim 1, it is characterised in that plug (3.2) be shaped as ellipse or semicircle.