CN211905477U

CN211905477U - Metering junction box without secondary connection

Info

Publication number: CN211905477U
Application number: CN202020319316.8U
Authority: CN
Inventors: 张培良
Original assignee: Haiyan Guoan Electric Co ltd
Current assignee: Haiyan Guoan Electric Co ltd
Priority date: 2020-03-14
Filing date: 2020-03-14
Publication date: 2020-11-10
Anticipated expiration: 2030-03-14

Abstract

The utility model discloses a no secondary connection measurement terminal box, comprises a box bod and a cover body, be equipped with voltage wiring district and electric current wiring district in the box body, voltage wiring district includes voltage input terminal and voltage output terminal, be equipped with on the voltage input terminal and lead electrical pillar one, be equipped with on the voltage output terminal and lead electrical pillar two, voltage input terminal and lead electrical pillar one-to-one setting, voltage output terminal and lead electrical pillar two-in-one setting, lead electrical pillar one and lead fixedly connected with hookup hook between the electrical pillar two. The conductive column in the junction box is integrally cast with the voltage input terminal and the voltage output terminal, the conductive column and the terminals are connected more stably, the heating phenomenon is not easy to occur, and the safety performance of the junction box is improved.

Description

Metering junction box without secondary connection

Technical Field

The utility model belongs to the technical field of circuit termination's technique and specifically relates to a no secondary connection measurement terminal box is related to.

Background

The metering junction box is a special junction box in a standard junction box of an electric energy metering device, is also suitable for a secondary loop with rated voltage of 660V and rated current of 20A, and is used for safely exchanging or on-site inspecting electric energy meters, electric instruments, leakage protection and other electrical equipment under the condition of load, thereby ensuring personal operation safety and improving on-site working efficiency.

The authorization number is: 207181490U, a Chinese patent discloses a metering secondary junction box, which comprises an insulating box body, the box body is a strip structure, one side of the strip direction is embedded with a voltage input terminal of A/B/C phase voltage and two current input terminals of A/B/C phase current, the other side is embedded with two voltage output terminals and four current output terminals, the voltage input terminals are respectively connected to the two voltage output terminals through two conductive coupling hooks, the two current input terminals are connected to the four current output terminals through a conductive connecting sheet, the two current input terminals are communicated with the two current output terminals on two sides of the output, the connecting sheet is electrically connected to the two current input terminals by a conductive screw in a detachable way, the connecting hook is connected to the voltage input terminal and the voltage output terminal through two conductive columns respectively, the connecting hook is located in the voltage wiring groove, and two ends of each conductive column are connected to the voltage input terminal and the voltage output terminal through screws respectively.

However, two ends of the conductive column in the junction box are respectively connected to the voltage input terminal and the voltage output terminal through screws, so that the conductive column is easy to loose from the voltage input terminal and the voltage output terminal, poor contact is easy to occur after the conductive column loosens, heat is easy to generate, and fire can even occur in serious situations, so that certain potential safety hazards exist in the junction box.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a measurement terminal box is connected to no secondary, the post of leading in this terminal box is integrated into one piece with voltage input terminal and voltage output terminal, leads to be connected more stably between post and the terminal, and the phenomenon of generating heat is difficult for appearing, improves the security performance of terminal box.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a no secondary connection measurement terminal box, includes box body and lid, be equipped with voltage wiring district and electric current wiring district in the box body, voltage wiring district includes voltage input terminal and voltage output terminal, be equipped with on the voltage input terminal and lead electrical pillar one, be equipped with on the voltage output terminal and lead electrical pillar two, voltage input terminal sets up with leading electrical pillar one-tenth, voltage output terminal sets up with leading electrical pillar two integratively, lead electrical pillar one and lead fixedly connected with hookup hook between the electrical pillar two.

Through adopting above-mentioned technical scheme, will lead electrical pillar one and voltage input terminal integrated casting shaping, will lead electrical pillar two and voltage output terminal integrated casting shaping to original secondary connection has been changed, it is more stable to make the terminal with lead to be connected between the electrical pillar, leads the difficult phenomenon that takes place to become flexible of electrical pillar, thereby makes the difficult phenomenon that takes place to generate heat of terminal, improves the security performance of terminal box.

The utility model discloses further set up to: and the current wiring area is provided with a test column communicated with the current wiring area, and the upper end of the test column is provided with a test interface.

Through adopting above-mentioned technical scheme, the setting up of test column makes things convenient for detecting instrument to insert and detects whole return circuit.

The utility model discloses further set up to: the test column and the copper bar on the current wiring area are integrally arranged.

Through adopting above-mentioned technical scheme, with the copper bar on test post and the electric current wiring district also integrated into one piece cast shaping for be connected more stably between test post and the copper bar, the difficult phenomenon that becomes flexible that takes place of test post is difficult for taking place the phenomenon that generates heat, further improves the security of terminal box.

The utility model discloses further set up to: the box body is connected with the cover body through a bolt, a rubber pad is sleeved on the bolt, a first through hole for the bolt to pass through is formed in the rubber pad, and the rubber pad is located between the head of the bolt and the upper surface of the cover body.

Box body and lid generally adopt plastics to make, and the lid is crushed easily to too tight of bolt-up, through adopting above-mentioned technical scheme, the effect of protection can be played to the lid to the setting of rubber pad for the lid is not fragile in long-term use, through the leakproofness that also can improve between screw thread and the lid.

The utility model discloses further set up to: the cover is equipped with the anticreep pad on the screw thread section of bolt, set up the second through-hole that the screw thread section that supplies the bolt passed on the anticreep pad, the screw thread section outer wall interference fit of second through-hole inner wall and bolt, the anticreep pad is located between lid and the box body, and lid, rubber pad and anticreep pad and box body threaded connection are passed to the screw thread section of bolt.

Through adopting above-mentioned technical scheme, the second through-hole inner wall on the anticreep pad is interference fit with the screw thread section outer wall of bolt, so the anticreep pad is difficult for coming off from the bolt to make when the lid dismantles the back from the box body, the bolt is difficult for appearing because of falling the phenomenon that can not find from the lid.

The utility model discloses further set up to: the side wall of the head part of the bolt is provided with a through hole.

Through adopting above-mentioned technical scheme, the setting up of through-hole makes can penetrate the body of rod and can rotate the bolt, does not need dedicated equipment to go to rotate the bolt for fastening and the unscrewing of bolt are more convenient.

The utility model discloses further set up to: a bulge is arranged on the cover body near the head of the bolt, and a through groove arranged towards the head of the bolt is formed in the bulge.

Through adopting above-mentioned technical scheme, use an external body of rod to insert logical groove and through-hole back, can play further spacing effect to the bolt for the difficult not hard up phenomenon that takes place of bolt.

To sum up, the utility model discloses a beneficial technological effect does:

the conductive column in the junction box is integrally cast with the voltage input terminal and the voltage output terminal, and a secondary connection structure is avoided, so that the conductive column and the terminals are connected more stably, the heating phenomenon is not easy to occur, and the safety performance of the junction box is improved.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view showing the structure of the anti-separation pad of the present invention;

FIG. 3 is a perspective view of FIG. 1 with the cover removed;

fig. 4 is a schematic structural diagram of the present invention;

FIG. 5 is a schematic perspective view of the voltage connection region of FIG. 1;

fig. 6 is a schematic perspective view of the current connection region of fig. 1.

In the figure, 1, a box body; 2. a cover body; 3. a voltage wiring region; 31. a voltage input terminal; 32. a voltage output terminal; 4. a current wiring region; 5. a first conductive post; 6. a second conductive column; 7. a coupling hook; 8. testing the column; 9. a test interface; 10. a rubber pad; 11. a first through hole; 12. an anti-drop pad; 13. a second through hole; 14. a through hole; 15. a protrusion; 16. a through groove; 17. a bolt; 18. mounting grooves; 19. a base plate.

Detailed Description

Referring to fig. 1 and 2, for the utility model discloses a no secondary connection measurement terminal box, including box body 1 and lid 2, box body 1 and lid 2 realize fixedly through two bolts 17, the cover is equipped with rubber pad 10 on the screw thread section of bolt 17, be equipped with the first through-hole 11 that supplies the screw thread section of bolt 17 to pass on rubber pad 10, rubber pad 10 is compressed tightly between lid 2 outer wall and bolt 17 head, still the cover is equipped with anticreep pad 12 on the screw thread section of bolt 17, be equipped with the second through-hole 13 that supplies the screw thread section of bolt 17 to pass on anticreep pad 12, the inner wall of second through-hole 13 and the screw thread section interference fit of bolt 17, anticreep pad 12 is the plastic sheet; two through holes 14 are uniformly formed in the outer side wall of the head of the bolt 17 around the axis of the bolt, a bulge 15 is fixedly arranged on the outer side wall of the cover body 2 near the bolt 17, the bulge 15 is provided with a through groove 16 arranged towards the head of the bolt 17, after the bolt 17 is screwed, the bolt 17 penetrates between the through hole 14 and the through groove 16 through an external rod body, further limiting can be achieved on the bolt 17, and the bolt 17 is enabled not to rotate easily.

Referring to fig. 3 and 4, a mounting groove 18 is formed in the bottom of the box body 1, a voltage wiring area 3 and a current wiring area 4 are formed in the mounting groove 18, a bottom plate 19 for sealing the mounting groove 18 is formed in the bottom of the box body 1, and the bottom plate 19 is fixedly connected with the box body 1 in a sealing manner through glue.

Referring to fig. 4 and 5, the voltage connection region 3 includes a voltage input terminal 31 and a voltage output terminal 32, a first conductive pillar 5 is disposed on the voltage input terminal 31, the first conductive pillar 5 is integrally cast with the voltage input terminal 31, a second conductive pillar 6 is disposed on the voltage output terminal 32, the second conductive pillar 6 is integrally cast with the voltage output terminal 32, the first conductive pillar 5 and the second conductive pillar 6 extend into the box body 1 through the bottom wall of the mounting groove 18, a coupling hook 7 is connected between the first conductive pillar 5 and the second conductive pillar 6, and the coupling hook 7 and the first conductive pillar 5 and the second conductive pillar 6 are respectively fixed by screws.

Referring to fig. 3 and 6, be equipped with the test post 8 rather than the intercommunication on the terminal in electric current wiring district 4, seted up test interface 9 on the test post 8, the setting up of test post 8 makes things convenient for detecting instrument to insert and detects whole return circuit, and the test post 8 passes the mounting groove 18 and goes up the diapire and extend to inside the box body 1.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a no secondary connection measurement terminal box, includes box body (1) and lid (2), be equipped with voltage wiring district (3) and electric current wiring district (4) in box body (1), voltage wiring district (3) are including voltage input terminal (31) and voltage output terminal (32), be equipped with on voltage input terminal (31) and lead electrical pillar one (5), be equipped with on voltage output terminal (32) and lead electrical pillar two (6), its characterized in that: the voltage input terminal (31) and the first conductive column (5) are integrally arranged, the voltage output terminal (32) and the second conductive column (6) are integrally arranged, and a connecting hook (7) is fixedly connected between the first conductive column (5) and the second conductive column (6).

2. The no secondary connection metering junction box of claim 1, wherein: the testing device is characterized in that a testing column (8) communicated with the current wiring area (4) is arranged on the current wiring area, and a testing interface (9) is arranged at the upper end of the testing column (8).

3. The no secondary connection metering junction box of claim 2, wherein: the test column (8) and the copper bar on the current wiring area (4) are integrally arranged.

4. The no secondary connection metering junction box of claim 1, wherein: the box body (1) is connected with the cover body (2) through a bolt (17), a rubber pad (10) is sleeved on the bolt (17), a first through hole (11) for the bolt (17) to penetrate through is formed in the rubber pad (10), and the rubber pad (10) is located between the head of the bolt (17) and the upper surface of the cover body (2).

5. The no secondary connection metering junction box of claim 4, wherein: the cover is equipped with anticreep pad (12) on the screw thread section of bolt (17), set up second through-hole (13) that the screw thread section that supplies bolt (17) to pass on anticreep pad (12), the screw thread section outer wall interference fit of second through-hole (13) inner wall and bolt (17), anticreep pad (12) are located between lid (2) and box body (1), and the screw thread section of bolt (17) passes lid (2), rubber pad (10) and anticreep pad (12) and box body (1) threaded connection.

6. The no secondary connection metering junction box of claim 5, wherein: the side wall of the head part of the bolt (17) is provided with a through hole (14).

7. The no secondary connection metering junction box of claim 6, wherein: a bulge (15) is arranged on the cover body (2) near the head of the bolt (17), and a through groove (16) arranged towards the head of the bolt (17) is formed in the bulge (15).