Electric energy meter for assembling outdoor charging pile in cold region and use method of electric energy meter

Abstract

The invention discloses an electric energy meter for assembling an outdoor charging pile in a cold region and a use method and belongs to the field of electric power. The bottom of the ammeter is provided with a groove, and the top end of the groove is provided with a connecting hole communicated with the inner cavity of the ammeter. A wiring device is arranged in the groove; a wire is arranged in the wiring device; the wiring device comprises a binding post fixedly connected in the connecting hole; one end, positioned in the groove, of the binding post is fixedly connected with the circular plate; a sliding rod in sliding fit with each slideway is arranged in the slideway, and the other end of the sliding rod is fixedly connected with the inner wall of the arc-shaped plate I; a cylinder in sliding fit with the groove is arranged in the groove, and a threaded ring is arranged in the cylinder. The wire can be separated from the outside, surface oxidation of the wire, the arc-shaped plate I and the arc-shaped plate II caused by the influence of the external environment on the wiring device is reduced, and the influence on use is avoided; meanwhile, the wire and the arc-shaped plate II can slide relative to the arc-shaped plate I, and the situation that the wire is shrunk and then separated from the wiring device due to the temperature influence is effectively avoided.

Description

Technical Field

[0001] The invention relates to an electric energy meter for outdoor charging piles in cold regions and a use method thereof, belonging to the field of electric power. Background Art

[0002] With the increasing popularity of new energy vehicles, charging stations are increasingly being installed in cities. In colder regions of northern China, charging stations and associated meters are often located outdoors. Due to the low winter temperatures in these regions, wires are more severely affected by thermal expansion and contraction. Currently, the most common method for connecting meters to wires on the market involves tightening the wires with bolts. This can easily cause the wires to detach from the terminals when they contract, impacting performance. Therefore, improvements have been made. Summary of the Invention

[0003] The purpose of the present invention is to solve the above-mentioned problems existing in the background technology and to provide an electric energy meter for outdoor charging piles in cold regions and a method of use.

[0004] The present invention achieves the above-mentioned purpose by adopting the following technical solutions:

[0005] An electric energy meter for outdoor charging piles in cold regions, comprising an electric meter; a groove is provided at the bottom of the electric meter, and a connecting hole communicating with the inner cavity of the electric meter is provided at the top of the groove; a wiring device is provided in the groove; a wire is provided in the wiring device; the wiring device comprises a terminal fixedly connected to the connecting hole; one end of the terminal located inside the groove is fixedly connected to a circular plate; a plurality of slideways are radially provided on the side surface of the circular plate; a sliding rod that slides with the sliding rod is provided in each of the slideways, and the other end of the sliding rod is fixedly connected to the inner wall of an arc-shaped plate I; a limiting block is fixedly connected to the outer wall of the arc-shaped plate I; a cylinder that slides with the sliding rod is provided inside the groove, and a threaded ring is provided inside the cylinder.

[0006] A method for using an electric energy meter for outdoor charging piles in cold regions, the method comprising the following steps:

[0007] Step 1: Install the protective housing on the outside of the insulation layer, and then install the cable thread connector on the outside of the insulation layer;

[0008] Step 2: Insert the wire into the wiring device;

[0009] Step 3: Rotate the cylinder to fix the wire;

[0010] Step 4: Screw the protective housing into the connection slot. Compared to existing technologies, the present invention has the following advantages: it not only isolates the wires from the outside world, reducing the risk of environmental oxidation of the wires, curved plate I, and curved plate II, thus preventing them from affecting their use, but also allows the wires and curved plate II to slide relative to curved plate I, effectively preventing the wires from shrinking and detaching from the wiring device due to temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a cross-sectional view of an electric energy meter for outdoor charging piles in cold regions according to the present invention;

[0012] Figure 2 This is a structural cross-sectional view of an electric energy meter for outdoor charging piles in cold regions according to the present invention;

[0013] Figure 3 This is a structural diagram of a wiring device for an electric energy meter installed on an outdoor charging pile in cold regions according to the present invention;

[0014] Figure 4 This is a structural diagram of a cylinder for an electric energy meter used in an outdoor charging pile in cold regions according to the present invention;

[0015] Figure 5 This is a diagram showing the connection structure of the arc plate I, arc plate II, and circular plate of an electric energy meter for outdoor charging piles in cold regions according to the present invention;

[0016] Figure 6 yes Figure 5 A top view of

[0017] Figure 7 This is a schematic diagram of the connection structure of the arc plate I and the arc plate II of an electric energy meter for outdoor charging piles in cold regions according to the present invention;

[0018] Figure 8 The present invention is a cross-sectional view of a circular plate of an electric energy meter for outdoor charging piles in cold regions. DETAILED DESCRIPTION

[0019] The technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] Specific implementation method 1: Figure 1-8As shown, this embodiment describes an electric energy meter for outdoor charging piles in cold regions, including an electric energy meter 1. The bottom of the electric energy meter 1 is provided with a groove 13, and the top of the groove 13 is provided with a connection hole 14 that communicates with the inner cavity 11 of the electric energy meter 1. A wiring device 3 is provided within the groove 13. A wire 2 is provided within the wiring device 3. The wiring device 3 includes a terminal 38 fixedly connected to the connection hole 14. One end of the terminal 38 located within the groove 13 is fixedly connected to a circular plate 39. The circular plate 39 has multiple radially extending slideways 310. Each slideway 310 has a sliding rod 37 that slidably engages therewith, and the other end of the sliding rod 37 is fixedly connected to the inner wall of an arc-shaped plate I 36. A limit block 35 is fixedly connected to the outer wall of the arc-shaped plate I 36. A cylinder 31 is provided within the groove 13 that slidably engages therewith, and a threaded ring 34 is provided within the cylinder 31. The arc-shaped plate I 36, the sliding rod 37, the circular plate 39, and the terminal 38 are all conductive.

[0021] The stopper 35 is tapered and positioned axially along the arcuate plate I 36. Its outer wall is provided with a spiral groove that mates with the inner threads of the threaded ring 34. The thickness of the stopper 35 decreases linearly from top to bottom. This thickness variation in the stopper 35 causes the threaded ring 34 to rotate, pushing the stopper 35 to move, thereby driving the arcuate plates I 36 and II 311 to clamp the conductor 2.

[0022] The inner wall of the curved plate I 36 is provided with a vertical groove I 312. A slider I 313 slidably engages within the groove I 312, which is fixedly connected to the curved plate II 311. The curved plate II 311 rests against the inner wall of the curved plate I 36. The curved plate II 311 is movable relative to the curved plate I 36, ensuring that after the conductor 2 is clamped, the conductor 2 contracts due to temperature, driving the curved plate II 311 with it. This ensures full contact between the conductor 2 and the curved plate II 311, preventing short circuits or open circuits caused by poor contact.

[0023] The conductor 2 is arranged inside the arc-shaped plate II 311 .

[0024] A sliding groove II 33 is provided on the inner wall of the cylinder 31 , and a slider II 32 is provided in the sliding groove II 33 to slide with the sliding groove II 33 . The slider II 32 is fixedly connected to the threaded ring 34 .

[0025] The bottom of the inner wall of the cylinder 31 is threaded. A cable threaded connector 22 is provided on the outer wall of the insulating layer 21 outside the conductor 2. The cable threaded connector 22 is threadedly connected to the cylinder 31. The threaded connection between the cable threaded connector 22 and the cylinder 31 effectively isolates the inner wall of the cylinder 31 from the outside world, preventing the arc plates II 311 and I 36 from oxidation caused by external environmental influences.

[0026] The bottom of the electric meter 1 is further provided with a connection groove 12 ; the outside of the insulating layer 21 of the wire 2 is further provided with a slidable protective shell 23 ; the protective shell 23 is connected to the connection groove 12 by screw threads.

[0027] The protective shell 23 is made of insulating material.

[0028] A method for using an electric energy meter for outdoor charging piles in cold regions, the method comprising the following steps:

[0029] Step 1: Install the protective housing 23 on the outside of the insulating layer 21, and then install the cable threaded connector 22 on the outside of the insulating layer 21;

[0030] Step 2: Insert the wire 2 into the wiring device 3;

[0031] Step 3: Rotate the cylinder 31 to fix the wire 2;

[0032] Step 4: Screw the protective shell 23 into the connecting groove 12 .

[0033] During the rotation of the cylinder 31 in step 3, the cylinder 31 is always in contact with the top wall of the groove 13 .

[0034] The working principle of the present invention is as follows: when using the device, the protective housing 23 is installed outside the insulating layer 21, and then the cable threaded connector 22 is installed outside the insulating layer 21;

[0035] Insert the wire 2 into the inner side of the curved plate II 311 of the wiring device 3;

[0036] The cylinder 31 is rotated, and the rotation of the cylinder 31 drives the slider II 32 to rotate through the slide groove II 33, and then drives the threaded ring 34 to rotate. The threaded ring 34 cooperates with the spiral groove on the outer wall of the limit block 35. Therefore, during the rotation process, the threaded ring 34 moves upward relative to the limit block 35. Since the thickness of the limit block 35 gradually decreases from top to bottom, the limit block 35 is pushed toward the center of the cylinder 31 during the upward movement of the threaded ring 34. The limit block 35 drives the arc plate I 36 to move, so that the arc plate I 36 pushes the slide rod 37 to slide in the slideway 310. The curved plate I 36 moves, and at the same time, the curved plate II 311 moves together with it during its movement, thereby clamping the wire 2 through the curved plate II 311. As the cylinder 31 rotates, since the bottom of the inner wall of the cylinder 31 is provided with a thread, the cylinder 31 also engages with the thread of the cable threaded connector 22 on the outside of the insulating layer 21 when the cylinder 31 rotates. Therefore, when the cylinder 31 rotates, the cable threaded connector 22 is driven to move toward the groove 13, thereby driving the wire 2 to move toward the inside of the wiring device 3, so as to ensure that the wire 2 can be fully inserted into the wiring device 3;

[0037] When the length of the wire 2 shrinks due to the influence of temperature, the wire 2 will move in the direction away from the wiring device 3. Since the arc plate II 311 clamps the wire 2, the arc plate II 311 will move together with the wire 2 under the action of friction, thereby driving the slider I 313 to slide in the slide groove I 312, ensuring that the relative position of the arc plate II 311 and the wire 2 remains unchanged. At the same time, since the cable threaded joint 22 is threadedly connected to the cylinder 31, when the wire 2 moves, the cable threaded joint 22 will also drive the cylinder 31 to slide relative to the groove 13, ensuring that the relative position of the cable threaded joint 22 and the cylinder 31 remains unchanged, thereby ensuring that the wire 2 and the arc plate II 31 can fully contact each other, effectively avoiding insufficient contact between the wire 2 and the arc plate II 311 due to the shrinkage of the wire 2 due to the influence of temperature, thereby affecting the use of the charging pile.

[0038] The cylinder 31 and the cable threaded connector 22 seal the interior of the cylinder 31, which can effectively prevent the arc plate II 311 and the arc plate I 36 from contacting the outside world, thereby effectively preventing the arc plate II 311 and the arc plate I 36 from being oxidized by the external environment.

[0039] The protective shell 23 is screwed into the connecting groove 12. The protective shell 23 can prevent the electric shock caused by the staff accidentally touching the cylinder 31 when the power is not turned off.

[0040] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other configurations without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations coming within the meaning and range of equivalents of the claims are intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0041] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An electric energy meter for outdoor charging piles in cold regions, characterized by: The utility model comprises an electric meter (1); a groove (13) is provided at the bottom of the electric meter (1), and a connection hole (14) communicating with the inner cavity (11) of the electric meter (1) is provided at the top of the groove (13); a wiring device (3) is provided in the groove (13); a wire (2) is provided in the wiring device (3); the wiring device (3) comprises a terminal (38) fixedly connected in the connection hole (14); one end of the terminal (38) located in the groove (13) is fixedly connected to a circular plate (39); a plurality of slideways (310) are radially provided on the side surface of the circular plate (39); each of the slideways (310) is provided with a slide rod (37) that is slidably matched with the slide rod, and the other end of the slide rod (37) is fixedly connected to the inner wall of the arc plate I (36); the outer wall of the arc plate I (36) is fixedly connected to a limit block (35); a cylinder (31) that is slidably matched with the groove (13) is provided in the interior of the cylinder (31), and a threaded ring (34) is provided in the interior of the cylinder (31).

2. The electric energy meter for outdoor charging piles in cold regions according to claim 1, characterized in that: The limit block (35) is conical and is arranged along the axial direction of the arc plate I (36); a spiral groove matching the inner wall thread of the threaded ring (34) is provided on the outer wall of the limit block (35).

3. The electric energy meter for outdoor charging piles in cold regions according to claim 2, characterized in that: A vertical slide groove I (312) is provided on the inner wall of the arc-shaped plate I (36); a slider I (313) is provided in the slide groove I (312) and is slidably matched therewith, and the slider I (313) is fixedly connected to the arc-shaped plate II (311); the arc-shaped plate II (311) is abutted against the inner wall of the arc-shaped plate I (36).

4. The electric energy meter for outdoor charging piles in cold regions according to claim 3, characterized in that: The wire (2) is arranged inside the arc-shaped plate II (311).

5. The electric energy meter for outdoor charging piles in cold regions according to claim 3, characterized in that: A slide groove II (33) is provided on the inner wall of the cylinder (31), and a slider II (32) is provided in the slide groove II (33) and is slidably matched with the slide groove II. The slider II (32) is fixedly connected to the threaded ring (34).

6. The electric energy meter for outdoor charging piles in cold regions according to claim 5, characterized in that: The bottom of the inner wall of the cylinder (31) is provided with a thread; the outer wall of the insulating layer (21) outside the wire (2) is provided with a cable threaded joint (22); the cable threaded joint (22) is threadedly connected to the cylinder (31).

7. The electric energy meter for outdoor charging piles in cold regions according to claim 6, characterized in that: The bottom of the electric meter (1) is further provided with a connection groove (12); the outside of the insulating layer (21) of the wire (2) is further provided with a slidable protective shell (23); the protective shell (23) is connected to the connection groove (12) through a thread.

8. The electric energy meter for outdoor charging piles in cold regions according to claim 7, characterized in that: The protective shell (23) is made of insulating material.

9. The method for using an electric energy meter for outdoor charging piles in cold regions according to claim 8, characterized in that: The method of use comprises the following steps: Step 1: Install the protective housing (23) outside the insulating layer (21), and then install the cable threaded connector (22) outside the insulating layer (21); Step 2: Insert the wire (2) into the wiring device (3); Step 3: Rotate the cylinder (31) to fix the wire (2); Step 4: Screw the protective housing (23) into the connecting groove (12).

10. The method for using an electric energy meter for outdoor charging piles in cold regions according to claim 9, characterized in that: During the rotation of the cylinder (31) in step three, the cylinder (31) always rests against the top wall of the groove (13).

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