CN108564782B

CN108564782B - Concentrator

Info

Publication number: CN108564782B
Application number: CN201810715736.5A
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: 2023-08-01
Anticipated expiration: 2038-06-30
Also published as: CN108564782A

Abstract

The invention relates to a concentrator, which comprises a terminal box and a first PCB board positioned on the upper side of the terminal box, wherein a first cavity for accommodating a voltage terminal and a second cavity for accommodating a functional terminal are arranged in the terminal box, and the concentrator is characterized in that: the terminal box is provided with a connecting plate for centralizing pins for connecting the voltage terminals in a pairing way, and the pins are inserted on the connecting plate, partially exposed out of the connecting plate and electrically connected with the first PCB; 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 invention has the advantages that: the voltage terminal and the functional terminal are conveniently connected, the situation that the voltage terminal and the functional terminal are installed incorrectly is prevented, time and labor are saved, and the existence of the limiting plate on the connecting plate prevents pins of the voltage terminal from falling out, so that the reliability of the installation of the voltage terminal is improved.

Description

Concentrator

Technical Field

The invention belongs to the field of concentrators, and particularly relates 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.

Be provided with end button box and PCB board in the concentrator, be provided with function terminal and voltage terminal in the end button box, in order to realize the connection of function terminal, voltage terminal and PCB board, be connected with the welding hole on the PCB board through the contact pin on the function terminal generally, the contact pin on the voltage terminal is connected with the welding hole on the PCB board.

In the process of actual operation, as the voltage terminals and the functional terminals are multiple, the corresponding pins are multiple, the colors of the pins may be different, and when the PCB is installed, the pins are required to be connected with the corresponding pad holes, so that the connection is easy to make mistakes, and the connection difficulty of the voltage terminals and the functional terminals and the PCB is increased.

Accordingly, there is a need for further improvements in the mounting structure of existing concentrator function terminals.

Disclosure of Invention

Aiming at the current state of the art, the invention provides a concentrator with accurate and convenient connection of a voltage terminal and a functional terminal.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a concentrator, is including end button box and the first PCB board that is located end button box upside, have the first cavity of holding voltage terminal and the second cavity of holding function terminal in the end button box, its characterized in that: the terminal box is provided with a connecting plate for centralizing pins for connecting the voltage terminals in a pairing way, and the pins are inserted on the connecting plate, partially exposed out of the connecting plate and connected with the first PCB; 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 facilitate the connection between the functional terminal and the second PCB, preferably, the functional terminal has a conductive connection post extending downward, a through hole for the conductive connection post to pass through is formed in the second PCB, the functional terminal is electrically connected with the second PCB through the cooperation of the conductive connection post and the through hole, and a pin header electrically connected with the first PCB is further arranged on the second PCB.

In order to prevent that the second PCB board from receiving the striking, the outside of second PCB board is provided with the dustcoat, be provided with on the terminal box with dustcoat matched with lid, the dustcoat passes through buckle structure to be fixed in the inboard of terminal box. Thus, on one hand, the second PCB is protected, and on the other hand, water and dust are prevented from entering, so that the service life of the second PCB is influenced.

In order to increase the firmness of the installation of the outer cover, preferably, the two opposite outer side walls of the outer cover are provided with first buckles, the inner side walls of the end button boxes are provided with buckling holes, and the outer cover is installed on the end button boxes through the matching of the first buckles and the buckling holes. Thus, the installation of the outer cover is facilitated, and the firmness of the installation of the outer cover is improved.

Preferably, the connecting plate extends along the width direction of the terminal box and is positioned at one side close to the outer cover, and one of the buckling holes is formed in the connecting plate. In this way, the compactness of the structure is increased, and the installation of the outer cover is facilitated.

In order to prevent the dustcoat from popping out, make things convenient for the installation of dustcoat simultaneously, the lower part of dustcoat is provided with the elastic plate, first buckle setting is on the lateral wall of this elastic plate, inwards extending's guide bar has on the inside wall of end button box, under the assembly completion state, the bottom of elastic plate offsets with the guide bar. Thus, the mounting of the outer cover is firmer, the elastic plate of the outer cover is prevented from being ejected, and the reliability of the mounting of the outer cover is improved.

In order to facilitate the installation of the pins of the voltage terminals and prevent the situation of the dislocation of the installation of the voltage terminals, a plurality of slots for inserting the pins of the voltage terminals are formed in the outer side wall of the connecting plate, and the voltage terminals are connected with the connecting plate through the matching of the pins and the slots.

The pin has various structural forms, the pin can be T-shaped or L-shaped, preferably, the longitudinal section of the pin is basically L-shaped, the pin comprises a plugboard and a pin arranged on the plugboard and extending 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 groove for the pin wire assembly to pass through, and the pin is inserted behind the slot and connected with the first PCB.

In order to realize the location of first PCB board, the terminal box has the reference column that upwards extends, offer the locating hole that supplies the reference column to pass on the first PCB board, the first PCB board passes through the cooperation of locating hole and reference column and installs on the terminal box.

In order to realize the fixed of end button box, still including the base, be provided with the limiting plate that extends along the length direction of end button box on the base, under the assembly completion state, the lateral wall of end button box offsets and this end button box passes through buckle structure to be fixed on the base with the limiting plate.

Further preferably, a supporting member and a supporting block for supporting the first PCB board are arranged on the inner side wall of the base, the supporting member is connected to the inner side wall of the base through a side rib plate, and the top of the supporting member and the top of the supporting block are on the same plane. Thus, the mounting stability of the first PCB is increased.

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, 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, have the reinforcing plate that upwards extends on the base inside wall, second buckle and supporting shoe all set up on the inside wall of reinforcing plate. Thus, the PCB is convenient to install and fix, and the strength of the base is increased.

Compared with the prior art, the invention has the advantages that: 1. the connecting plate on the terminal box in the concentrator concentrates the pins connected with the voltage terminal in a pairing way, and the pin parts are exposed out of the connecting plate and connected with the first PCB, so that the connection of the voltage terminal is conveniently realized, the situation that the pins connected with the voltage terminal in a pairing way are disordered in installation and even in connection errors occur is prevented, and the time and the labor are saved; the existence of the limiting plate on the connecting plate prevents pins of the voltage terminal from falling out, so that the reliability of the installation of the voltage terminal is improved; 2. the functional terminals in the terminal button box are concentrated through the second PCB and are electrically connected with the first PCB, so that the connection of the functional terminals is convenient, the mounting errors of the functional terminals are prevented, and the accuracy of the mounting of the functional terminals is improved; 3. the second PCB board is provided with the dustcoat outward to prevent dust, water etc. to contact the second PCB board, and then increased the life of second PCB board.

Drawings

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

FIG. 2 is a schematic view of a part of the structure of an embodiment of the present invention;

FIG. 3 is a schematic view of the exploded perspective view of FIG. 1;

FIG. 4 is a schematic view of the exploded perspective view of FIG. 2;

fig. 5 is a schematic view of the structure of the terminal box (with functional terminals and voltage terminals installed) according to the embodiment of the present invention;

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

FIG. 7 is a schematic view of an exploded view of an end box according to an embodiment of the present invention;

FIG. 8 is a schematic view of another exploded view of an end box according to an embodiment of the present invention;

FIG. 9 is a schematic perspective exploded view of a part of the structure of an embodiment of the present invention;

fig. 10 is a schematic diagram of a mounting structure of a first PCB board, a thermistor, and a protective cover according to an embodiment of the present invention;

FIG. 11 is a schematic view of a protective cover of a thermistor according to an embodiment of the present invention;

fig. 12 is a schematic view of another angle of fig. 11.

Detailed Description

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

As shown in fig. 1 to 12, the concentrator of the embodiment of the present invention includes a terminal box 3 and a first PCB board 2 positioned on the upper side of the terminal box 3, a second PCB board 34 is disposed in the terminal box 3, wherein,

the terminal box 3 is provided with a first chamber 301 for accommodating the voltage terminal 31 and a second chamber 302 for accommodating the functional terminal 32, wherein the terminal box 3 is provided with a connecting plate 33 for centralizing pins 311 for connecting the voltage terminal 31 in a pairing manner, and the pins 311 are inserted on the connecting plate 33 and partially exposed out of the connecting plate 33 and are electrically connected with the first PCB 2. Wherein, in order to protect the second PCB 34, an outer cover 35 is disposed on the outer side of the second PCB 34, and a cover plate 38 matched with the outer cover 35 is disposed on the terminal box 3.

The connecting plate 33 of the present embodiment extends along the width direction of the terminal box 3 and is located at a side close to the outer cover 35, wherein a fastening hole 300 is formed on the connecting plate 33, a plurality of slots 331 are formed on the outer side wall of the connecting plate 33, the pins 311 of the power supply terminal 31 are inserted into the slots 331, the voltage terminal 31 is connected with the connecting plate 33 through the cooperation of the pins 311 and the slots 331, and in addition, a limiting plate 332 extending downward is arranged on the connecting plate 33.

In this embodiment, the longitudinal section of the pin 311 is substantially L-shaped, the 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 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 where the pin 3112 and the wire are connected.

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. Specifically, the functional terminal 32 has a conductive connection post 321 extending downward, a through hole 342 through which the conductive connection post 321 passes 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, a pin 341 electrically connected with the first PCB 2 is further formed on the second PCB 34, a through hole 381 through which a pin 3411 of the pin 341 passes is formed on the cover plate 38 of the terminal box 3, and the pin 341 passes through the through hole 381 and is electrically connected with the first PCB 2.

The outer cover 35 is fixed on the terminal box 3 through a fastening structure, specifically, two opposite outer side walls of the outer cover 35 are provided with first fasteners 351, the inner side wall of the terminal box 3 is provided with fastening holes 300, and the outer cover 35 is installed on the terminal box 3 through the cooperation of the first fasteners 351 and the fastening holes 300; 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 order to realize the fixation of the terminal box, a limiting plate 16 extending along the length direction of the terminal box 3 is arranged on the base 1, and in the assembled state, the outer side wall of the terminal box 3 abuts against the inner side wall of the limiting plate 16 and the terminal box 3 is fixed on the base 1 through a fastening structure. Specifically, the terminal box 3 is connected to one side of the base 1 of the concentrator in the length direction in a buckling manner, specifically, a first clamping block 39 is arranged on the outer side wall of the terminal box 3, a first buckling hole 13 matched with the first clamping block 39 is formed in a position corresponding to the first clamping block 39 on the base 1, and the terminal box 3 is fixedly connected with the base 1 through the matching of the first clamping block 39 and the first buckling hole 13.

In order to facilitate positioning and supporting the first PCB, the terminal box 3 has a positioning post 303 extending upwards, the first PCB 2 is provided with a positioning hole 24 through which the positioning post 303 passes, and the terminal box 3 is mounted on the first PCB 2 by matching the positioning post 303 and the positioning hole 24. In addition, be provided with the support piece 12 that is used for supporting first PCB board 2 on the inside wall of base 1, support piece 12 passes through side rib 122 to be connected on the inside wall of base 1, has increased the intensity of base, in addition, all have upwards to extend on support piece 12 and the side rib 122 have projection 121, offer the through-hole 20 that supplies projection 121 to pass on the first PCB board 2, first PCB board 2 passes through the cooperation of projection 121 and through-hole 20 and sets up on base 1. Thus, the first PCB is more firmly installed.

In order to realize the fixation of the first PCB board, the first PCB board 2 is fixed on the base 1 in a buckling way, the second buckling buckle 11 is arranged on the inner side wall of the base 1, the clamping groove 21 matched with the second buckling buckle 11 is formed in the first PCB board 2, and the first PCB board 2 is installed on the base through the matching of the clamping groove 21 and the second buckling buckle 11. Specifically, the inner side wall of the base 1 is provided with a supporting block 111 for supporting the first PCB 2, the supporting block 111 is located at the lower portion of the second buckle 11, and in the assembled state, the first PCB 2 is located between the second buckle 11 and the supporting block 111. In this embodiment, the inner side wall of the base 1 has an upwardly extending reinforcing plate 17, and the second buckle 11 and the supporting block 111 are disposed on the inner side wall of the reinforcing plate 17. Further, the top of the support 12 is substantially on the same plane as the top of the support block 111, thereby achieving support of the first PCB board.

The thermistor 4 is inserted in the first PCB, the protective cover 22 is sleeved outside the thermistor 4, the protective cover 22 can be detachably arranged on the first PCB 2, specifically, pins 222 extend downwards at two ends of the protective cover 22, insertion holes 201 for inserting corresponding pins 222 are formed in the first PCB 2, and the protective cover 22 is fixedly connected with the first PCB 2 through the cooperation of the pins 222 and the insertion holes 23. The shape of the protection cover 22 is basically U-shaped, the protection cover 22 includes a middle part 223 and an extension part 224 extending from the middle part 223 to two sides, the pin 222 is disposed on the extension part 224, the first PCB 2 is provided with an insertion hole 23 for inserting the corresponding pin 222, the protection cover 22 is fixedly connected with the first PCB 2 through the cooperation of the pin 222 and the insertion hole 23, the lower end of the pin 222 extends outwards to form a fixture block 222a, the pin 222 is inserted into the insertion hole 23 and is clamped on the first PCB 2 through the fixture block 222a in the assembled state, and the lower end face of the extension part 224 abuts against the first PCB 2.

Specifically, each pin 222 includes a first extending leg 2221, a second extending leg 2222, and a connection base 2223 for connecting the first extending leg 2221 and the second extending leg 2222, the fixture block 222a is disposed on an outer sidewall of the second extending leg 2222, and in an assembled state, the PCB 2 is located between the connection base 2213 and the fixture block 222 a.

In order to protect components on the base, a cover 5 is disposed on the base, in this embodiment, one side of the cover 5 is rotatably connected with the base 1, and the other side is fixed on the base 1 through a first connecting piece. Specifically, the inner side wall of the base 1 is provided with a positioning convex part 14, the cover body 5 is provided with a hook 52 matched with the positioning convex part 14, and one side of the cover body 5 is rotatably arranged on the base 1 through the matching of the hook 52 and the positioning convex part 14.

In order to realize the protection of the terminal box, in this embodiment, the outer side of the terminal box 3 is provided with a protecting cover 6, one side of the protecting cover 6 is provided with a convex portion 61 extending inwards, the other side is provided with a mounting hole 62 for a second connecting piece to pass through, correspondingly, the top of the cover body 5 is provided with a groove 51 for accommodating the convex portion 61, the base 1 is provided with a connecting hole 15 corresponding to the mounting hole 62, and the second connecting piece sequentially passes through the mounting hole 62 and the connecting hole 15 to realize the mounting of the protecting cover 6 and the base 1.

The foregoing description of the preferred embodiments of the invention 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 invention.

Claims

1. The utility model provides a concentrator, is including end button box (3) and be located first PCB board (2) of end button box (3) upside, have first cavity (301) of holding voltage terminal (31) and second cavity (302) of holding function terminal (32) in end button box (3), its characterized in that: the terminal box (3) is provided with a connecting plate (33) for centralizing pins (311) for connecting the voltage terminals (31) in a pairing mode, the connecting plate (33) extends along the width direction of the terminal box (3), and the pins (311) are inserted on the connecting plate (33) and partially exposed out of the connecting plate (33) and are connected with the first PCB (2); 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 outer side of the second PCB (34) is provided with an outer cover (35), the end button box (3) is provided with a cover body (38) matched with the outer cover (35), and the outer cover (35) is fixed on the inner side of the end button box (3) through a fastening structure.

4. A concentrator as claimed in claim 3, wherein: the utility model discloses a terminal button box, including outer cover (35), terminal button box (3), terminal button box (3), be provided with first buckle (351) on the opposite lateral wall of outer cover (35), the lower part of outer cover (35) is provided with elastic plate (36), first buckle (351) set up on the lateral wall of this elastic plate (36), detain hole (300) have been seted up on the inside wall of terminal button box (3), outer cover (35) are installed on terminal button box (3) through the cooperation of first buckle (351) and detaining hole (300).

5. The concentrator as defined in claim 4, wherein: the connecting plate (33) is positioned at one side close to the outer cover (35), and one buckling hole (300) is formed in the connecting plate (33).

6. The concentrator as defined in claim 5, wherein: the inner side wall of the terminal box (3) is provided with a guide rib (37) extending inwards, and the bottom of the elastic plate (36) abuts against the guide rib (37) when the terminal box is assembled.

7. The concentrator as defined in claim 6, wherein: the outer side wall of the connecting plate (33) is provided with a plurality of slots (331) for inserting pins (311) of the power supply terminal (31), and the voltage terminal (31) is connected with the connecting plate (33) through the cooperation of the pins (311) and the slots (331).

8. The concentrator as recited in claim 7, wherein: the longitudinal section of the pin (311) is basically L-shaped, the pin (311) comprises a plug board (3111) and a pin (3112) which is arranged on the plug board (3111) and extends towards the direction of the first PCB (2), a wire connected with the voltage terminal (31) is arranged on the upper portion of the plug board (3111), the slot (331) comprises a groove (3311) for the plug board (3111) to be inserted and a through groove (3312) for the pin wire assembly to pass through, and the pin (311) is inserted behind the slot (331) and connected with the first PCB (2).

9. The concentrator of any one of claims 1 to 8, wherein: still including base (1), be provided with limiting plate (16) that extend along the length direction of end button box (3) on base (1), under the assembly completion state, the lateral wall of end button box (3) offsets and this end button box (3) are fixed on base (1) through buckle structure with limiting plate (16).

10. The concentrator as in claim 9, wherein: the terminal box (3) is provided with a positioning column (303) extending upwards, a positioning hole (24) for the positioning column (303) to pass through is formed in the first PCB (2), and the first PCB (2) is installed on the terminal box (3) through the matching of the positioning hole (24) and the positioning column (303).

11. The concentrator as in claim 10, wherein: be provided with support piece (12) and supporting shoe (111) that are used for supporting first PCB board (2) on the inside wall of base (1), support piece (12) are connected on the inside wall of base (1) through side floor (122), the top of support piece (12) and the top of supporting shoe (111) are on the coplanar.

12. The concentrator as recited in claim 11, 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), 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).

13. The concentrator as in claim 12, wherein: the base (1) is provided with a reinforcing plate (17) extending upwards, and the second buckle (11) and the supporting block (111) are arranged on the inner side wall of the reinforcing plate (17).