CN108564781B

CN108564781B - Concentrator

Info

Publication number: CN108564781B
Application number: CN201810703469.XA
Authority: CN
Inventors: 魏伟; 黄健; 陈欢; 林国庆
Original assignee: Ningbo Sanxing Medical and Electric Co Ltd
Current assignee: Ningbo Sanxing Medical and Electric Co Ltd
Priority date: 2018-06-30
Filing date: 2018-06-30
Publication date: 2023-09-01
Anticipated expiration: 2038-06-30
Also published as: CN108564781A

Abstract

The utility model relates to a concentrator, which comprises an end button box and a current transformer, wherein a voltage terminal and a functional terminal are arranged in the end button box, and a first PCB (printed circuit board) is arranged on the upper side of the end button box, and is characterized in that: the current transformer, the functional terminal and the voltage terminal are sequentially arranged from top to bottom, and the current transformer is inserted in the terminal box and is electrically connected with the first PCB through the second pin; the terminal box is characterized in that a second PCB is arranged in the terminal box, and the functional terminal is fixed on the second PCB and is electrically connected with the first PCB through the second PCB. Compared with the prior art, the utility model has the advantages that: the installation design of the current transformer ensures that the occupied space of the current transformer is small, the space utilization rate of the concentrator is increased, and the structural design is more reasonable; in addition, the installation of function terminal is convenient and fast more and accurate, and prevents to appear that the wire is disordered and then the condition of installation dislocation appears.

Description

Concentrator

Technical Field

The utility model relates in particular to a concentrator.

Background

The concentrator is central management equipment and control equipment of a remote centralized meter reading system, is responsible for the functions of timing reading terminal data, command transmission of the system, data communication, network management, event recording, transverse transmission of data and the like, and is central connection point equipment of a connecting terminal, a computer or communication equipment.

In a number of terminal-intensive areas, typically to reduce communication lines, the terminals are connected to a concentrator, which is then connected to a communication controller of a computer via a high-speed line, and thus the concentrator is also an effective device for sharing lines and improving line utilization.

The concentrator is provided with a terminal box and a PCB, wherein various elements such as a voltage terminal, a functional terminal and a mutual inductor are arranged in the terminal box, the concentrator is provided with a plurality of pad holes, a plurality of pressing plates are further arranged on the pad holes, a plurality of contact pins are arranged on one side of the functional terminal, and the contact pins are in clearance fit with the pad holes. The connection between the functional terminals and the PCB is realized, however, in the process of actual operation, as the functional terminals are multiple, the pins are different in length, the colors of the pins are different, the connection is easy to make mistakes, and the connection difficulty is increased.

For another example, chinese patent No. CN201721315865.2 (grant notice No. CN 207318556U) entitled "terminal box assembly of three-phase electric energy meter", the terminal box assembly includes terminal box, relay and transformer assembly, 4 voltage connector assemblies and circuit board; the left side and the right side of the terminal box are respectively provided with a clamping hook and 2 positioning columns, the relay and transformer assembly comprises a relay assembly and 3 current transformers, and each current transformer is provided with 2 connecting pins; each current transformer all is connected with relay assembly electricity, relay assembly, each current transformer, each voltage joint subassembly and circuit board all are connected with the end button box, and trip, 2 reference columns and each connecting needle all are connected with the circuit board, and this patent discloses current transformer's installation, but, current transformer sets up outside the end button box, occupation space is big, and current transformer passes through screw and end button box fixed connection, has increased contact resistance, adopts screw connection easy problem that the screw is not hard up to appear simultaneously, and the reliability is not high.

Accordingly, there is a need for further improvements to existing concentrators.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a concentrator which has a compact structure and is convenient, quick and accurate to install a current transformer and a functional terminal.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a concentrator, including end button box and current transformer, be provided with voltage terminal and functional terminal in the end button box, the upside of end button box is provided with a PCB board, its characterized in that: the current transformer, the functional terminal and the voltage terminal are sequentially arranged from top to bottom, and the current transformer is inserted in the terminal box and is electrically connected with the first PCB through the second pin; the terminal box is characterized in that a second PCB is arranged in the terminal box, and the functional terminal is fixed on the second PCB and is electrically connected with the first PCB through the second PCB.

In order to conveniently realize the installation of functional terminal, functional terminal has downwardly extending's conductive connection post, offer the perforation that supplies conductive connection post to pass on the second PCB board, functional terminal realizes the electricity with the second PCB board through conductive connection post and fenestrate cooperation and is connected, still be equipped with the row needle of being connected with first PCB board electricity on the second PCB board.

In order to prevent the second PCB and the functional terminal from being contacted with water or dust to influence the service life, the end button box is detachably provided with an outer cover, the end button box is provided with a cover plate matched with the outer cover, the second PCB and the functional terminal are positioned in a space surrounded by the outer cover, and the cover plate is provided with a through hole for the pins of the pin to pass through.

In order to facilitate the installation of the outer cover, a first buckle is arranged on the outer side wall of the outer cover, correspondingly, a first buckle hole matched with the first buckle is formed in the terminal button box, and the outer cover is installed on the terminal button box through the matching of the first buckle and the first buckle hole; or one side of the outer cover is in plug-in fit with the terminal box, and the other side of the outer cover is fixed on the inner side wall of the terminal box through a buckle structure. Thus, the outer cover is convenient to install and detach, and the firmness of the installation of the protective cover is improved. .

In order to facilitate the installation of the current transformer in the terminal button box, the terminal button box is provided with a containing groove for the current transformer to be inserted therein from top to bottom.

In order to prevent the reverse installation of the current transformer, an opening is formed in the side wall of the accommodating groove, a rib is formed in one side wall of the current transformer, and the rib is located in the corresponding opening in the assembled state. Thus, the current transformer is accurately installed in the corresponding accommodating groove, and the problem of reverse installation is prevented, so that the installation efficiency is increased.

In order to conveniently realize the electric connection of voltage terminal and first PCB board, be provided with the connecting plate that is used for connecting the first pin of voltage terminal pair concentrated on the terminal box, offer a plurality of confession voltage terminal pair first pins of connection and insert the slot of establishing on the connecting plate, voltage terminal is connected with the connecting plate through the cooperation of first pin and slot, first pin exposes outside the slot, voltage terminal can realize the electric connection with first PCB board through this first pin.

In order to prevent the first pins of the voltage terminals from falling out, the connecting plate is located at the insertion end of the voltage terminals and extends along the length direction of the first PCB, and the slots are formed in the outer side walls of the connecting plate.

The pin has various structural forms, preferably, the longitudinal section of the first pin is basically L-shaped, the first pin comprises a plugboard and a contact pin which is arranged on the plugboard and extends towards the direction of the first PCB, the upper part of the plugboard is provided with a wire connected with a voltage terminal, the slot comprises a groove for the plugboard to be inserted and a through slot for the contact pin wire assembly to pass through, and the first pin is inserted behind the slot and is connected with the first PCB.

In order to increase the stability of first PCB board installation, the upper portion of end button box is provided with the extension post, set up the locating hole that supplies the extension post to pass on the first PCB board, first PCB board passes through the locating hole and extends the cooperation of post and installs on the end button box.

In order to increase the mounting firmness of the terminal box, the concentrator is provided with a base, and the terminal box is detachably fixed on one side of the base in the length direction.

Further preferably, a clamping block is arranged on the outer side wall of the terminal box, a second buckling hole matched with the clamping block is formed in the corresponding position of the clamping block on the base, and the terminal box is fixedly connected with the base through the matching of the clamping block and the second buckling hole.

In order to realize the fixed of first PCB board, be provided with the second buckle on the inside wall of base, offered on the first PCB board with second buckle matched with draw-in groove, be provided with the supporting shoe that is used for supporting first PCB board on the inside wall of base, the supporting shoe is located the lower part of second buckle, under the assembly completion state, first PCB board is located between second buckle and the supporting shoe.

In order to increase the intensity of base, the shaping has the reinforcing plate on the inside wall of base, second buckle and supporting shoe all set up the upper portion at the reinforcing plate inside wall. Thus, the strength of the base is increased while the fixed mounting of the first PCB is realized.

Compared with the prior art, the utility model has the advantages that: the current transformer, the functional terminal and the voltage terminal are sequentially arranged from top to bottom, and the current transformer is electrically connected with the first PCB through the second pins, namely, the current transformer is integrated in the terminal box, so that the occupied space of the current transformer in the concentrator is reduced, the space utilization rate of the concentrator is increased, in addition, the current transformer can be installed without screw fixation, and the contact resistance during screw fixation is reduced; in addition, be provided with the second PCB board in the end button box, functional terminal fixes on the second PCB board to be connected with first PCB board electricity through the second PCB board, realize functional terminal's installation through the switching of second PCB board promptly, make its installation more convenient and accurate, prevent that the wire from being in disorder and then appear installing the condition of dislocation, its structural design is more reasonable.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a schematic diagram of an exploded perspective view of an embodiment of the present utility model;

FIG. 3 is a schematic view of the structure of FIG. 2 at another angle;

fig. 4 is a schematic view of the structure of the terminal box (with voltage terminals and functional terminals installed) according to the embodiment of the present utility model;

FIG. 5 is a schematic view of an end box according to an embodiment of the present utility model;

FIG. 6 is a schematic view of an exploded view of an end box according to an embodiment of the present utility model;

fig. 7 is a schematic perspective exploded view of a portion of the structure of fig. 2.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1 to 7, the concentrator of the embodiment of the present utility model includes a base 1 and a terminal box 3 disposed on the base 1, a voltage terminal 31, a functional terminal 32 and a current transformer 30 are disposed in the terminal box 3, a first PCB board 2 is disposed on an upper side of the terminal box 3, the current transformer 30, the functional terminal 32 and the voltage terminal 31 are sequentially disposed from top to bottom,

the terminal box 3 is provided with a connecting plate 33 for centralizing first pins 311 for connecting the voltage terminals 31 in a pairing manner, the connecting plate 33 is provided with a plurality of slots 331 for inserting the first pins 311 for connecting the voltage terminals 31 in a pairing manner, the voltage terminals 31 are connected with the connecting plate 33 through the cooperation of the first pins 311 and the slots 331, the first pins 311 are exposed out of the slots 331 and are connected with the first PCB 2, the connecting plate 33 is positioned at the inserting end of the voltage terminals 31, the connecting plate 33 extends along the length direction of the first PCB 2, the slots 331 are formed in the outer side wall of the connecting plate 33, and the voltage terminals 31 can be electrically connected with the first PCB 2 through the first pins 311. Further, the connection plate 33 has a stopper plate 332 extending downward thereon.

Specifically, the longitudinal section of the first pin 311 is substantially L-shaped, the first pin 311 includes a socket 3111 and pins 3112 disposed on the socket 3111 and extending toward the first PCB 2, wires connected to the voltage terminals 31 are disposed on the upper portion of the socket 3111, the slot 331 includes a groove 3311 for inserting the socket 3111 and a through slot 3312 for passing through the pin wire assembly, and the first pin 311 is inserted into the slot 331 and connected to the first PCB 2. The pin and wire assembly comprises a pin 3112, a wire and a connecting portion connected with the pin 3112 and the wire.

The current transformer 30 is inserted in the terminal box 3, the current transformer 30 is electrically connected with the first PCB board 2 through the second pins 302, specifically, a containing groove 301 in which the current transformer 30 is inserted from top to bottom is formed in the terminal box 3, an opening 3010 is formed in a side wall of the containing groove 301, a rib 303 is formed in a side wall of the current transformer 30, the rib 303 is vertically arranged, and in an assembled state, the rib 303 is located in the corresponding opening 3010.

The terminal box 3 is internally provided with a second PCB 34, and the functional terminal 32 is fixed on the second PCB 34 and electrically connected with the first PCB 2 through the second PCB 34. Specifically, the functional terminal 32 has a conductive connection post 321 extending downward, a through hole 342 for the conductive connection post 321 to pass through is formed on the second PCB 34, the functional terminal 32 is electrically connected with the second PCB 34 through the cooperation of the conductive connection post 321 and the through hole 342, and a pin array 341 electrically connected with the first PCB 2 is further disposed on the second PCB 34.

In order to protect the second PCB 34 and the functional terminals 32, the terminal box 3 is detachably provided with an outer cover 35, and the terminal box 3 is provided with a cover plate 38 that is matched with the outer cover 35, the second PCB 34 and the functional terminals 32 are located in the space of the outer cover 35, and the cover plate 38 is provided with a through hole 381 through which the pins of the pin array 341 pass.

In order to realize the mounting of the outer cover, the outer side wall of the outer cover 35 is provided with a first buckle 351, correspondingly, the terminal box 3 is provided with a first buckle hole 300 matched with the first buckle 351, and the outer cover 35 is mounted on the terminal box 3 through the matching of the first buckle 351 and the first buckle hole 300; or, one side of the outer cover 35 is in plug-in fit with the terminal box 3, the other side of the outer cover 35 is fixed on the inner side wall of the terminal box 3 through a buckle structure, specifically, a bump is arranged on one side of the outer cover 35, a first buckle is arranged on the other side of the outer cover, correspondingly, a jack for inserting the bump therein and a first buckle hole matched with the first buckle are formed in the terminal box 3.

In order to prevent the outer cover from falling out, an elastic plate 36 is arranged at the lower part of the outer cover 35, a first buckle 351 is arranged on the outer side wall of the elastic plate 36, a guiding rib 37 extending inwards is arranged on the inner side wall of the terminal box 3, and in the assembled state, the bottom of the elastic plate 36 is propped against the guiding rib 37.

In this embodiment, the terminal box 3 is detachably fixed on one side of the base 1 in the length direction, the base 1 is provided with a limiting plate 14 extending along the width direction, and in the assembled state, the outer side wall of the terminal box 3 abuts against the inner side wall of the limiting plate 14 and is fixed on the base 1 through a fastening structure. Specifically, a clamping block 39 is arranged on the outer side wall of the terminal box 3, a second buckling hole 13 matched with the clamping block 39 is formed in the corresponding position of the clamping block 39 on the base 1, and the terminal box 3 is fixedly connected with the base 1 through the matching of the clamping block 39 and the second buckling hole 13.

In order to realize the fixed of first PCB board, be provided with second buckle 11 on the inside wall of base 1, offered on the first PCB board 2 with second buckle 11 matched with draw-in groove 21, be provided with the supporting shoe 111 that is used for supporting first PCB board 2 on the inside wall of base 1, supporting shoe 111 is located the lower part of second buckle 11, under the assembly completion state, first PCB board 2 is located between second buckle 11 and the supporting shoe 111. In this embodiment, the inner sidewall of the base 1 is formed with a reinforcing plate 19, and the second buckle 11 and the supporting block 111 are disposed on the upper portion of the inner sidewall of the reinforcing plate 19.

In order to realize the positioning of the first PCB board, the extension column 304 is provided at the upper part of the terminal box 3, the first PCB board 2 is provided with the positioning hole 24 for the extension column 304 to pass through, and the first PCB board 2 is mounted on the terminal box 3 through the cooperation of the positioning hole 24 and the extension column 304. In addition, the inner sidewall of the base 1 is provided with a supporting member 12 for supporting the first PCB 2, the top of the supporting member 12 and the top of the supporting block 111 are substantially on the same plane, so as to support the first PCB, the supporting member 12 has a post 121 extending upwards, the first PCB 2 is provided with a through hole 22 through which the post 121 passes, and the first PCB 2 is disposed on the base 1 through the cooperation of the post 121 and the through hole 22.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The utility model provides a concentrator, including end button box (3) and current transformer (30), be provided with voltage terminal (31) and functional terminal (32) in end button box (3), the upside of end button box (3) is provided with first PCB board (2), its characterized in that: the current transformer (30), the functional terminal (32) and the voltage terminal (31) are sequentially arranged from top to bottom, and the current transformer (30) is inserted into the terminal box (3) and is electrically connected with the first PCB (2) through the second pins (302); the terminal box (3) is internally provided with a second PCB (34), and the functional terminal (32) is fixed on the second PCB (34) and is electrically connected with the first PCB (2) through the second PCB (34).

2. The concentrator as in claim 1, wherein: the functional terminal (32) is provided with a conductive connecting post (321) extending downwards, a through hole (342) for the conductive connecting post (321) to pass through is formed in the second PCB (34), the functional terminal (32) is electrically connected with the second PCB (34) through the cooperation of the conductive connecting post (321) and the through hole (342), and a pin (341) electrically connected with the first PCB (2) is further arranged on the second PCB (34).

3. The concentrator as in claim 2, wherein: the terminal box (3) is detachably provided with an outer cover (35), the terminal box (3) is provided with a cover plate (38) matched with the outer cover (35), the second PCB (34) and the functional terminals (32) are located in a space surrounded by the outer cover (35), and the cover plate (38) is provided with a through hole (381) for the pins of the pin array (341) to pass through.

4. A concentrator as claimed in claim 3, wherein: a first buckle (351) is arranged on the outer side wall of the outer cover (35), correspondingly, a first buckle hole (300) matched with the first buckle (351) is formed in the end button box (3), and the outer cover (35) is installed on the end button box (3) through the matching of the first buckle (351) and the first buckle hole (300); or one side of the outer cover (35) is in plug-in fit with the end button box (3), and the other side of the outer cover is fixed on the inner side wall of the end button box (3) through a buckle structure.

5. The concentrator as in claim 1, wherein: the terminal box (3) is provided with a containing groove (301) in which the power supply transformer (30) is inserted from top to bottom.

6. The concentrator as defined in claim 5, wherein: an opening (3010) is formed in the side wall of the accommodating groove (301), a rib (303) is formed in one side wall of the current transformer (30), and the rib (303) is located in the corresponding opening (3010) in the assembled state.

7. The concentrator as in claim 1, wherein: be provided with on terminal box (3) and be used for connecting voltage terminal (31) pair first connecting pin (311) concentrated connecting plate (33), set up on connecting plate (33) a plurality of first inserting pin (311) of power supply terminal (31) pair connection and insert slot (331), voltage terminal (31) are connected with connecting plate (33) through the cooperation of first inserting pin (311) with slot (331), first inserting pin (311) expose outside slot (331), voltage terminal (31) can realize the electricity with first PCB board (2) through this first inserting pin (311).

8. The concentrator as recited in claim 7, wherein: the connecting plate (33) is located at the insertion end of the voltage terminal (31), the connecting plate (33) extends along the length direction of the first PCB (2), and the slot (331) is formed in the outer side wall of the connecting plate (33).

9. The concentrator as recited in claim 8, wherein: the longitudinal section of first pin (311) is L type basically, and this first pin (311) is including picture peg (3111) and set up on picture peg (3111) and to contact pin (3112) that first PCB board (2) direction extends, the upper portion of picture peg (3111) is provided with the wire that is connected with voltage terminal (31), slot (331) are including recess (3311) and logical groove (3312) that supply contact pin wire subassembly to pass that supply picture peg (3111) to insert, first pin (311) are inserted and are established behind slot (331) and are connected with first PCB board (2).

10. The concentrator of any one of claims 1 to 9, wherein: the upper portion of end button box (3) is provided with extension post (304), set up the locating hole that supplies extension post (304) to pass on first PCB board (2), first PCB board (2) are installed on end button box (3) through the cooperation of locating hole and extension post (304).

11. The concentrator as in claim 10, wherein: the concentrator is provided with a base (1), and the terminal box (3) is detachably fixed on one side of the base (1) in the length direction.

12. The concentrator as recited in claim 11, wherein: the end button box (3) is provided with a clamping block (39) on the outer side wall, a second buckling hole (13) matched with the clamping block (39) is formed in the corresponding position of the clamping block (39) in the base (1), and the end button box (3) is fixedly connected with the base (1) through the matching of the clamping block (39) and the second buckling hole (13).

13. The concentrator as in claim 12, wherein: be provided with second buckle (11) on the inside wall of base (1), set up on first PCB board (2) with second buckle (11) matched with draw-in groove (21), be provided with on the inside wall of base (1) and be used for supporting shoe (111) of first PCB board (2), supporting shoe (111) are located the lower part of second buckle (11), under the assembly completion state, first PCB board (2) are located between second buckle (11) and supporting shoe (111).

14. The concentrator as in claim 13, wherein: the base (1) is provided with a reinforcing plate (19) formed on the inner side wall, and the second buckle (11) and the supporting block (111) are arranged on the upper portion of the inner side wall of the reinforcing plate (19).