Junction box for electric energy acquisition terminal

Abstract

The utility model relates to the field of electrical equipment, in particular to a junction box for an electric energy acquisition terminal. The technical problem is that in the operation process of the electric energy acquisition terminal, water vapor enters a junction box of the electric energy acquisition terminal due to the severe environment, and the water vapor is not easy to come out after entering the junction box, so that metal elements in the junction box are continuously corroded, and the service life of the device is shortened. According to the technical scheme, the junction box for the electric energy acquisition terminal comprises a negative pressure assembly and a sealing assembly. According to the utility model, through the arrangement of the air exhaust mechanism and the sealing mechanism, when the electric energy acquisition terminal works in a harsh environment, air and moisture from the outside are not easy to enter the junction box, and air and moisture in the junction box can be discharged after wet air enters the junction box. Therefore, the problems that the moisture continuously corrodes metal elements in the junction box and the service life of the junction box is shortened because the moisture is not easy to discharge after entering the junction box are solved.

Description

Technical Field

[0001] The utility model relates to the field of electrical equipment, in particular to a junction box for an electric energy acquisition terminal. Background Art

[0002] The electric energy acquisition terminal is a main core device for a remote automatic meter reading system. It is responsible for collecting electric energy information and transmitting this information to the master station for processing and analysis. Such a device usually adopts a high-performance hardware platform and a real-time embedded operating system, and can realize functions such as automatic acquisition, storage, and remote transmission of electric energy data. The junction box of the electric energy acquisition terminal is a device for electric energy metering. It is usually installed on the electric energy meter and is used to connect and protect the lines of the electric energy meter. The main function of the junction box is to ensure a safe connection between the electric energy meter and the external circuit, and at the same time facilitate the maintenance and repair of the lines. However, some water vapor may enter the junction box operating in a relatively harsh environment, and it is not easy for this water vapor to come out after entering the junction box, thus continuously corroding the internal metal components and reducing the service life of the device. Summary of the Utility Model

[0003] In order to overcome the problem that during the operation of the electric energy acquisition terminal, due to the harsh environment, water vapor enters the junction box of the electric energy acquisition terminal. It is not easy for this water vapor to come out after entering the junction box, thus continuously corroding the internal metal components of the junction box and reducing the service life of the device.

[0004] The technical solution of the utility model is: a junction box for an electric energy acquisition terminal, including a negative pressure component, a mask component, a sealing component, and an acquisition terminal main body; a mask component is rotatably connected to the negative pressure component; sealing components are fixedly connected inside both the negative pressure component and the mask component; an acquisition terminal main body is arranged at the upper end of the mask component.

[0005] Preferably, the negative pressure component is used to extract air and moisture inside the junction box to prevent moisture from corroding the internal parts of the junction box, the mask component cooperates with the sealing component to prevent external air and moisture from entering the junction box, and the acquisition terminal main body is used to collect electric energy information.

[0006] As a preference, the negative pressure component includes a bottom shell, a sealing gasket, a first embedding groove, clip pieces, a backing plate, an air extraction hole, a compaction bolt, an air extraction pump, and a first threaded block; a sealing gasket is fixedly connected to the bottom shell; a first embedding groove is opened inside the bottom shell; multiple groups of clip pieces are fixedly connected to the upper end of the first embedding groove. Insert the wire between the clip pieces to fix the wire, and then place the copper wire of the wire on the compaction bolt and tighten the compaction bolt to fix the wire and complete the electrical connection.

[0007] Preferably, a backing plate is fixedly connected to the upper end of the clamping piece; an air extraction hole is formed in one side of the backing plate; an air extraction pump is communicated with one side of the air extraction hole, and the air extraction pump is fixedly connected to the bottom shell; a compaction bolt is in clearance fit with the backing plate; a first threaded block is fixedly connected to the lower end of the front end face of the bottom shell. After closing the cover, start the air extraction pump, and the air extraction pump extracts the air and moisture in the junction box through the air extraction hole to prevent the moisture from corroding the metal components in the junction box.

[0008] Preferably, the mask assembly includes a cover, a second threaded block, a screw, a pressing strip, and a second slot; the cover is rotatably connected to the front end of the bottom shell; the second threaded block is fixedly connected to the lower end of the front end face of the cover. Close the cover and fit the first threaded block and the second threaded block together with the screw, so that the cover and the pressing strip press on the sealing gasket to prevent the outside air and water vapor from entering the junction box.

[0009] Preferably, a screw is in clearance fit with the second threaded block; a pressing strip is fixedly connected to the cover; a second slot is formed in the lower end of the pressing strip.

[0010] Preferably, the sealing assembly includes a clamping block, a resisting block, a positioning block, a spring, a soft sealing strip, and a groove; clamping blocks are fixedly connected to both the first slot and the second slot; a plurality of resisting blocks are fixedly connected to each clamping block; positioning blocks are fixedly connected between the resisting blocks. When the cover is closed, the two soft sealing strips will be simultaneously squeezed by the wire and the soft sealing strip, so that the soft sealing strip fits the wire. At the same time, the spring will make the soft sealing strip fit the wire more tightly to ensure the airtightness of the junction box.

[0011] Preferably, a spring is fixedly connected to each positioning block; a soft sealing strip is fixedly connected to the spring; a groove is formed in each soft sealing strip.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. By setting an air extraction mechanism and a sealing mechanism, when the electric energy acquisition terminal works in a harsh environment, it is not easy for the outside air and moisture to enter the junction box. And after the humid air enters the junction box, the air and moisture in the junction box can also be discharged to prevent the moisture from entering the junction box and being difficult to discharge, so as to avoid the problem that the moisture continuously corrodes the internal metal components of the junction box and reduces the service life of the junction box.

[0014] 2. Insert the wire between the clamping pieces to fix the wire. Then, place the copper wire of the wire on the compaction bolt and tighten the compaction bolt to fix the wire and complete the connection of the circuit. Subsequently, close the cover and fit the first threaded block and the second threaded block through screws, so that the cover and the pressing strip press on the gasket. At the same time, the two soft sealing strips will be squeezed by the wire and the soft sealing strips simultaneously, so that the soft sealing strip fits the wire, and the spring will also make the soft sealing strip fit the wire better to ensure the airtightness of the junction box, thereby preventing external air and water vapor from entering the junction box and preventing external moisture from entering the junction box and corroding the internal metal components of the junction box;

[0015] 3. After closing the cover, the air pump can be started, and the air pump will extract the air and moisture in the junction box through the air extraction hole to avoid the problem that it is not easy to discharge the external moisture entering the junction box, thereby continuously corroding the metal components in the junction box. Description of the Drawings

[0016] Figure 1 Shows the overall structure schematic diagram of the present utility model;

[0017] Figure 2 Shows the schematic diagram of the air extraction hole structure of the present utility model;

[0018] Figure 3 Shows the schematic diagram of the pressing strip structure of the present utility model;

[0019] Figure 4 Shows the schematic diagram of the second groove structure of the present utility model;

[0020] Figure 5 Shows the schematic diagram of the block structure of the present utility model;

[0021] Figure 6 Shows the schematic diagram of the soft sealing strip structure of the present utility model;

[0022] Figure 7 Shows the schematic diagram of the air pump structure of the present utility model.

[0023] Description of the reference numerals: 1. Negative pressure component; 2. Mask component; 3. Sealing component; 4. Acquisition terminal main body; 101. Bottom case; 102. Gasket; 103. First groove; 104. Clamping piece; 105. Backing plate; 106. Air extraction hole; 107. Compaction bolt; 108. Air pump; 109. First threaded block; 201. Cover; 202. Second threaded block; 203. Screw; 204. Pressing strip; 205. Second groove; 301. Block; 302. Abutting block; 303. Positioning block; 304. Spring; 305. Soft sealing strip; 306. Groove. Detailed Embodiment

[0024] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0025] Please refer to Figures 1-4 , the present utility model provides an embodiment: a junction box for an electric energy acquisition terminal, which includes a negative pressure component 1, a mask component 2, a sealing component 3, and an acquisition terminal body 4; a mask component 2 is rotatably connected to the negative pressure component 1; sealing components 3 are fixedly connected inside both the negative pressure component 1 and the mask component 2; an acquisition terminal body 4 is arranged at the upper end of the mask component 2. The negative pressure component 1 is used to extract air and moisture inside the junction box to prevent moisture from corroding the parts inside the junction box, the mask component 2 cooperates with the sealing component 3 to prevent external air and moisture from entering the junction box, and the acquisition terminal body 4 is used to acquire electric energy information. The negative pressure component 1 includes a bottom shell 101, a sealing gasket 102, a first groove 103, clip pieces 104, a backing plate 105, an air extraction hole 106, a compaction bolt 107, an air extraction pump 108, and a first threaded block 109; a sealing gasket 102 is fixedly connected to the bottom shell 101; a first groove 103 is opened inside the bottom shell 101; multiple groups of clip pieces 104 are fixedly connected to the upper end of the first groove 103. Insert the wire between the clip pieces 104 to fix the wire, and then place the copper wire of the wire on the compaction bolt 107 and tighten the compaction bolt 107 to fix the wire and complete the electrical connection. A backing plate 105 is fixedly connected to the upper end of the clip pieces 104; an air extraction hole 106 is opened on one side of the backing plate 105; one side of the air extraction hole 106 communicates with an air extraction pump 108, and the air extraction pump 108 is fixedly connected to the bottom shell 101; the compaction bolt 107 is in clearance fit with the backing plate 105; a first threaded block 109 is fixedly connected to the lower end of the front end face of the bottom shell 101. After closing the cover 201, start the air extraction pump 108, and the air extraction pump 108 extracts air and moisture inside the junction box through the air extraction hole 106 to avoid moisture from corroding the metal components inside the junction box. The mask component 2 includes a cover 201, a second threaded block 202, a screw 203, a pressing strip 204, and a second groove 205; the cover 201 is rotatably connected to the front end of the bottom shell 101; a second threaded block 202 is fixedly connected to the lower end of the front end face of the cover 201. Close the cover 201 and fit the first threaded block 109 and the second threaded block 202 together through the screw 203, so that the cover 201 and the pressing strip 204 press on the sealing gasket 102 to prevent external air and water vapor from entering the junction box. The screw 203 is in clearance fit with the second threaded block 202; a pressing strip 204 is fixedly connected inside the cover 201; a second groove 205 is opened at the lower end of the pressing strip 204.

[0026] Please refer to Figures 5-7, in this embodiment, the sealing assembly 3 includes a clamping block 301, a resisting block 302, a positioning block 303, a spring 304, a soft sealing strip 305, and a groove 306; clamping blocks 301 are fixedly connected inside both the first embedding groove 103 and the second embedding groove 205; a plurality of resisting blocks 302 are fixedly connected inside each clamping block 301; positioning blocks 303 are fixedly connected between the resisting blocks 302. When closing the cover 201, the two soft sealing strips 305 will be simultaneously squeezed by the wire and the soft sealing strip 305, so that the soft sealing strip 305 fits the wire. At the same time, the spring 304 will make the soft sealing strip 305 fit the wire better to ensure the airtightness of the junction box. Positioning blocks 303 are fixedly connected with springs 304 inside; soft sealing strips 305 are fixedly connected to the springs 304; grooves 306 are formed in the soft sealing strips 305.

[0027] When working, insert the wire between the clip pieces 104 to fix the wire, then place the copper wire of the wire on the compaction bolt 107 and tighten the compaction bolt 107 to fix the wire and complete the connection of the circuit;

[0028] Subsequently, close the cover 201 and fit the first threaded block 109 and the second threaded block 202 through the screw 203, so that the cover 201 and the pressure strip 204 press on the sealing gasket 102. At the same time, the two soft sealing strips 305 will be simultaneously squeezed by the wire and the soft sealing strip 305, so that the soft sealing strip 305 fits the wire, and the spring 304 will also make the soft sealing strip 305 fit the wire better to ensure the airtightness of the junction box, thereby preventing the outside air and water vapor from entering the junction box and preventing the outside moisture from entering the junction box and corroding the internal metal components of the junction box;

[0029] After closing the cover 201, the air pump 108 can be started, and the air pump 108 will extract the air and moisture in the junction box through the air extraction hole 106 to avoid the problem that it is not easy to discharge the outside moisture entering the junction box, thereby continuously corroding the metal components in the junction box.

[0030] Through the above steps, by setting the air extraction mechanism and the sealing mechanism, when the electric energy acquisition terminal works in a harsh environment, it is not easy for the outside air and moisture to enter its junction box, and after the humid air enters the junction box, the air and moisture in the junction box can also be discharged to prevent the moisture from being not easy to discharge after entering the junction box, so as to prevent the moisture from continuously corroding the internal metal components of the junction box and reducing the service life of the junction box.

[0031] The above has described in detail the embodiments of the present invention in conjunction with the drawings, but the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the purpose of the present invention.

Claims

1. A junction box for an electric energy acquisition terminal, comprising a negative pressure component (1); characterized in that: It further includes a masking component (2), a sealing component (3), and a collection terminal main body (4); the masking component (2) is rotatably connected to the negative pressure component (1); the sealing component (3) is fixedly connected inside both the negative pressure component (1) and the masking component (2); the collection terminal main body (4) is arranged at the upper end of the masking component (2).

2. The junction box for an electric energy collection terminal according to claim 1, characterized in that: The negative pressure component (1) includes a bottom shell (101), a sealing gasket (102), a first groove (103), a clip (104), a backing plate (105), an air extraction hole (106), a compaction bolt (107), an air extraction pump (108), and a first threaded block (109); the sealing gasket (102) is fixedly connected to the bottom shell (101); the first groove (103) is formed inside the bottom shell (101); multiple clips (104) are fixedly connected to the upper end of the first groove (103).

3. The junction box for an electric energy acquisition terminal according to claim 2, characterized in that: The clip (104) is fixedly connected to the backing plate (105) at the upper end; the air extraction hole (106) is formed on one side of the backing plate (105); the air extraction pump (108) is communicated with one side of the air extraction hole (106) and is fixedly connected to the bottom shell (101); the compaction bolt (107) is in clearance fit with the backing plate (105); the first threaded block (109) is fixedly connected to the lower end of the front face of the bottom shell (101).

4. The junction box for an electric energy acquisition terminal according to claim 2, characterized in that: The masking component (2) includes a cover (201), a second threaded block (202), a screw (203), a pressing strip (204), and a second groove (205); the cover (201) is rotatably connected to the front end of the bottom shell (101); the second threaded block (202) is fixedly connected to the lower end of the front face of the cover (201).

5. The junction box for an electric energy acquisition terminal according to claim 4, characterized in that: The screw (203) is in clearance fit with the second threaded block (202); the pressing strip (204) is fixedly connected inside the cover (201); the second groove (205) is formed at the lower end of the pressing strip (204).

6. The terminal block for an electric energy collection terminal according to claim 5, characterized in that: The sealing component (3) includes a clamping block (301), a resisting block (302), a positioning block (303), a spring (304), a soft sealing strip (305), and a groove (306); the clamping block (301) is fixedly connected inside both the first groove (103) and the second groove (205); multiple resisting blocks (302) are fixedly connected inside the clamping block (301); the positioning block (303) is fixedly connected between the resisting blocks (302).

7. The terminal block for an electric energy collection terminal according to claim 5, characterized in that: The spring (304) is fixedly connected inside the positioning block (303); the soft sealing strip (305) is fixedly connected to the spring (304); the groove (306) is formed on the soft sealing strip (305).

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