CN209103508U

CN209103508U - A kind of concentrator

Info

Publication number: CN209103508U
Application number: CN201821029942.2U
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: 2019-07-12
Anticipated expiration: 2028-06-30

Abstract

The utility model relates to a kind of concentrators, it include terminal box and current transformer, voltage terminal and function terminal are provided in the terminal box, the first pcb board is provided on the upside of the terminal box, it is characterized by: the current transformer, function terminal and voltage terminal are sequentially arranged from top to bottom, the current transformer is plugged in terminal box, and is electrically connected by the second pin with the first pcb board；The second pcb board is provided in the terminal box, the function terminal is fixed on the second pcb board, and is electrically connected by the second pcb board with the first pcb board.Compared with the prior art, the advantages of the utility model are: the mounting design of such current transformer increases the space utilization rate of concentrator, and structure design is more reasonable so that current transformer occupies little space；In addition, function terminal is easier for installation quick and accurate, and prevents conducting wire in a jumble and then the case where installation dislocation occur.

Description

A kind of concentrator

Technical field

The utility model relates to be specifically related to a kind of concentrator.

Background technique

Concentrator is the centre management equipment and control equipment of remote auto meter reading system, is responsible for timing reading terminals number Functions, the concentrator such as lateral transport according to the order transmission of, system, data communication, network management, logout, data are companies Connect the central connection point equipment of terminal, computer or communication equipment.

In several terminal compact districts, communication line is usually reduced, terminal is first connected to concentrator, then using height Concentrator is connected to the communication controler of computer by fast route, and therefore, concentrator is also that share wires and raising route utilize A kind of effective equipment of rate.

Terminal box and pcb board are provided in concentrator, wherein voltage terminal, function terminal, mutual inductance are provided in terminal box The various elements such as device, current concentrator, as (Authorization Notice No. is Patent No. CN201721257118.8 CN207183708U " concentrator function terminal connecting structure ", the concentrator function disclosed in Chinese utility model patent) Terminal connecting structure, including pcb board and terminal box, are provided with multiple function ends on the terminal box, below the pcb board It is fixedly installed connection pad, multiple pad holes are provided on the connection pad, are additionally provided in the pad hole more A pressing plate, the side of the function terminal are provided with multiple contact pins, the contact pin and pad hole clearance fit.The patent is real Showed the connection of function terminal and pcb board, still, during practical operation, due to function terminal have it is multiple, contact pin Different in size, there is also differences for color, are easy error in connection, increase connection difficulty.

The for another example Chinese utility model of Patent No. CN201721315865.2 (Authorization Notice No. CN207318556U) Patent " the terminal cartridge of three-phase electric energy meter ", the terminal cartridge include terminal box, relay and transformer component, 4 Voltage jointer component and circuit board；It is equipped with hook and 2 positioning columns at left and right sides of the terminal box, the relay and mutually Sensor component includes relay assembly and 3 current transformers, and 2 connection needles are equipped on each current transformer；Each electricity Current transformer is electrically connected with relay assembly, the relay assembly, each current transformer, each voltage jointer component and Circuit board is connect with terminal box, and hook, 2 positioning columns and each item connection needle are connect with circuit board, and which disclose electricity The installation of current transformer, still, current transformer are arranged outside terminal box, and occupied space is big, and current transformer passes through screw It is fixedly connected with terminal box, increases contact resistance, while easily the problem of screw loosening occur using screw connection, reliability is not It is high.

Therefore, it is necessary to be improved further to existing concentrator.

Utility model content

Technical problem to be solved in the utility model is in view of the above-mentioned state of the art, to provide a kind of compact-sized And current transformer and function terminal is quick and easy for installation, accurate concentrator.

Technical solution adopted by the utility model to solve the above technical problems is as follows: a kind of concentrator, includes terminal box And current transformer, voltage terminal and function terminal are provided in the terminal box, are provided with first on the upside of the terminal box Pcb board, it is characterised in that: the current transformer, function terminal and voltage terminal are sequentially arranged from top to bottom, the electric current Mutual inductor is plugged in terminal box, and is electrically connected by the second pin with the first pcb board；Second is provided in the terminal box Pcb board, the function terminal are fixed on the second pcb board, and are electrically connected by the second pcb board with the first pcb board.

In order to facilitate the installation for realizing function terminal, the function terminal has the conductive connection column extended downwardly, described The perforation passed through for being conductively connected column is offered on second pcb board, the function terminal is matched by being conductively connected column with what is perforated Conjunction realization is electrically connected with the second pcb board, and the row's needle being electrically connected with the first pcb board is additionally provided on second pcb board.

The second pcb board and function terminal touch water or dust and influence service life in order to prevent, on the terminal box It is removedly provided with outer cover, and there is the cover board matched with outer cover, second pcb board and function terminal on the terminal box The through-hole that the stitch of supply and discharge needle passes through is offered in the space that outer cover encloses, and on the cover board.

In order to facilitate the installation of outer cover, the first buckle is provided on the lateral wall of the outer cover, accordingly, the terminal box Upper to have the first button hole matched with the first buckle, the outer cover is mounted on by the cooperation of the first buckle and the first button hole On terminal box；Alternatively, the side of the outer cover is mating with terminal box, the other side is fixed on terminal box by buckle structure On inner sidewall.In this way, facilitating the installation and removal of outer cover, while increasing the fastness of protective cover installation.

Current transformer is mounted in terminal box for convenience, is formed on the terminal box for current transformer from upper And lower plant accommodation groove therein.

Current transformer installation is anti-in order to prevent, and opening, the current transformer are offered on the side wall of the accommodation groove One side wall on form rib, in the case where assembling completion status, the rib is located in corresponding opening.In this way, making electric current mutual Sensor is accurately fitted within corresponding accommodation groove, prevents anti-loaded problem, to increase installation effectiveness.

In order to facilitate being electrically connected for voltage terminal and the first pcb board is realized, it is provided on the terminal box to by voltage Terminal matches the connecting plate that the first pin of connection is concentrated, and multiple voltage supplied terminals pairing connections are offered on the connecting plate The slot that first pin plugs, the voltage terminal are connect by the cooperation of the first pin and slot with connecting plate, and described first Pin exposes to outside slot, and the voltage terminal is able to achieve by first pin and is electrically connected with the first pcb board.

The first pin of voltage terminal drops out in order to prevent, and the connecting plate is located at the insertion end of voltage terminal, and the company Fishplate bar extends along the length direction of the first pcb board, and the slot is provided on the lateral wall of connecting plate.

There are many structure types of pin, it is preferable that the longitudinal section of first pin is substantially L-shaped, first pin Include plate and be arranged on plate and to the contact pin that the first pcb board direction extends, the top of the plate is provided with and electricity The conducting wire that pressure side is connected, the slot include the groove plugged for plate and pass through for contact pin wire assembly logical Slot, first pin are plugged in after slot and connect with the first pcb board.

In order to increase the stability of the first pcb board installation, the top of the terminal box is provided with extending column, and described first The location hole passed through for extending column is offered on pcb board, first pcb board is installed by the cooperation of location hole and extending column On terminal box.

In order to increase the installation fastness of terminal box, the concentrator has pedestal, and the terminal box is removedly fixed In the side in the base length direction.

Further preferably, fixture block is provided on the lateral wall of the terminal box, the pedestal is in the corresponding position of fixture block On offer the second button hole matched with fixture block, the terminal box is realized by the cooperation of fixture block and the second button hole and pedestal It is fixedly connected.

In order to realize the fixation of the first pcb board, the second buckle, the first PCB are provided on the inner sidewall of the pedestal The card slot matched with the second buckle is offered on plate, is provided on the inner sidewall of the pedestal to support the first PCB plate Supporting block, the supporting block are located at the lower part of the second buckle, assemble under completion status, and first pcb board is located at the second buckle Between supporting block.

In order to increase the intensity of pedestal, stiffening plate, second buckle and support are formed on the inner sidewall of the pedestal Block is arranged at the top of stiffening plate inner sidewall.In this way, increasing pedestal while realizing the fixed installation of the first pcb board Intensity.

Compared with the prior art, the advantages of the utility model are: being inserted with Current Mutual Inductance in the terminal box of the concentrator Device, current transformer, function terminal and voltage terminal are sequentially arranged from top to bottom, and current transformer passes through the second pin and the The electrical connection of one pcb board, i.e., current transformer is integrated in terminal box, so that occupied space of the current transformer in concentrator subtracts It is small, to increase the space utilization rate of concentrator, in addition, installation can be realized without screw fixation in current transformer, reduce Contact resistance when screw is fixed；In addition, being provided with the second pcb board in terminal box, function terminal is fixed on the second pcb board On, and be electrically connected by the second pcb board with the first pcb board, i.e., the installation of function terminal is realized by the switching of the second pcb board, So that its is easier for installation and accurate, prevents conducting wire in a jumble and then the case where installation dislocation occur, structure designs more Adduction reason.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model embodiment；

Fig. 2 is the dimensional decomposition structure diagram of the utility model embodiment；

Fig. 3 is the structural schematic diagram of another angle of Fig. 2；

Fig. 4 is the structural schematic diagram of the terminal box (being equipped with voltage terminal and function terminal) of the utility model embodiment；

Fig. 5 is the structural schematic diagram of the terminal box of the utility model embodiment；

Fig. 6 is the dimensional decomposition structure diagram of the terminal box of the utility model embodiment；

Fig. 7 is the dimensional decomposition structure diagram of part-structure in Fig. 2.

Specific embodiment

The utility model is described in further detail below in conjunction with figure embodiment.

As shown in Figures 1 to 7, the concentrator of the utility model embodiment includes pedestal 1 and the end that is arranged on pedestal 1 Button box 3 is provided with voltage terminal 31, function terminal 32 and current transformer 30, the upside setting of terminal box 3 in terminal box 3 There is the first pcb board 2, current transformer 30, function terminal 32 and voltage terminal 31 are sequentially arranged from top to bottom, wherein

The connecting plate 33 to concentrate the first pin 311 of the pairing connection of voltage terminal 31 is provided on terminal box 3, even The slot 331 that the first pin 311 of the multiple pairing of voltage supplied terminal 31 connections plugs is offered on fishplate bar 33, voltage terminal 31 is logical It crosses the first pin 311 to connect with the cooperation of slot 331 with connecting plate 33, it is outer and with first that the first pin 311 exposes to slot 331 Pcb board 2 connects, and connecting plate 33 is located at the insertion end of voltage terminal 31, and the connecting plate 33 is along the length direction of the first pcb board 2 Extend, slot 331 is provided on the lateral wall of connecting plate 33, and voltage terminal 31 is able to achieve and first by the first pin 311 The electrical connection of pcb board 2.In addition, having the limit plate 332 extended downwardly on connecting plate 33.

Specifically, the longitudinal section of the first pin 311 is substantially L-shaped, which includes plate 3111 and setting On plate 3111 and to the contact pin 3112 that 2 direction of the first pcb board extends, the top of plate 3111 is provided with and voltage terminal 31 The conducting wire being connected, slot 331 include the groove 3311 plugged for plate 3111 and pass through for contact pin wire assembly logical Slot 3312, the first pin 311 are plugged in after slot 331 and connect with the first pcb board 2.Wherein, contact pin wire assembly includes slotting Needle 3112, conducting wire and the interconnecting piece being connected with contact pin 3112 and conducting wire.

Current transformer 30 is plugged in terminal box 3, and current transformer 30 passes through the second pin 302 and the first PCB plate 2 Electrical connection, specifically, forms on terminal box 3 and plants accommodation groove 301 therein from top to bottom for current transformer 30, accommodates Opening 3010 is offered on the side wall of slot 301, rib 303 is formed in the one side wall of current transformer 30, and rib 303 is vertically set It sets, in the case where assembling completion status, rib 303 is located in corresponding opening 3010.

The second pcb board 34 is provided in terminal box 3, function terminal 32 is fixed on the second pcb board 34, and passes through second Pcb board 34 is electrically connected with the first pcb board 2.Specifically, function terminal 32 has the conductive connection column 321 that extends downwardly, and second The perforation 342 passed through for being conductively connected column 321 is offered on pcb board 34, function terminal 32 is by being conductively connected column 321 and perforation 342 cooperation realization is electrically connected with the second pcb board 34, and the row being electrically connected with the first pcb board 2 is additionally provided on the second pcb board 34 Needle 341.

In order to protect the second pcb board 34 and function terminal 32, outer cover 35, and the end are removedly provided on terminal box 3 There is the cover board 38 matched with outer cover 35, the second pcb board 34 and function terminal 32 are located in 35 space of outer cover, cover on button box 3 The through-hole 381 that the stitch of supply and discharge needle 341 passes through is offered on plate 38.

In order to realize the installation of outer cover, the first buckle 351, accordingly, terminal box 3 are provided on the lateral wall of outer cover 35 It is upper with the first button holes 300 matched with the first buckle 351, outer cover 35 passes through the first buckle 351 and the first button hole 300 Cooperate and is mounted on terminal box 3；Alternatively, the side of outer cover 35 and terminal box 3 are mating, the other side is solid by buckle structure It is scheduled on the inner sidewall of terminal box 3, specifically, the side of outer cover 35 is provided with convex block, and the other side is provided with the first buckle, corresponding Ground offers on terminal box 3 and plants jack therein, and compatible first button hole with the first buckle for convex block.

Outer cover drops out in order to prevent, and the lower part of outer cover 35 is provided with elastic plate 36, and the first buckle 351 is arranged in the elastic plate On 36 lateral wall, there is the guiding rib 37 to extend internally on the inner sidewall of terminal box 3, assembles under completion status, elastic plate 36 Bottom offset with guiding rib 37.

In the present embodiment, terminal box 3 is removedly fixed on the side of 1 length direction of pedestal, is provided on pedestal 1 along width Spend the limit plate 14 that direction extends, in the case where assemble completion status, the lateral wall of terminal box 3 and the inner sidewall of limit plate 14 offset and It is fixed on pedestal 1 by buckle structure.Specifically, fixture block 39 is provided on the lateral wall of terminal box 3, pedestal 1 is in fixture block 39 The second button hole 13 matched with fixture block 39 is offered on corresponding position, terminal box 3 passes through fixture block 39 and the second button hole 13 Cooperation realize and be fixedly connected with pedestal 1.

In order to realize the fixation of the first pcb board, it is provided with the second buckle 11 on the inner sidewall of pedestal 1, on the first pcb board 2 The card slot 21 matched with the second buckle 11 is offered, the branch to support the first PCB plate 2 is provided on the inner sidewall of pedestal 1 Bracer 111, supporting block 111 are located at the lower part of the second buckle 11, assemble under completion status, and the first PCB plate 2 is located at the second buckle Between 11 and supporting block 111.In the present embodiment, stiffening plate 19, the second buckle 11 and supporting block are formed on the inner sidewall of pedestal 1 111 are arranged at the top of 19 inner sidewall of stiffening plate.

In order to realize the positioning of the first pcb board, the top of terminal box 3 is provided with extending column 304, opens on the first pcb board 2 Equipped with the location hole 24 passed through for extending column 304, the first pcb board 2 is mounted on by location hole 24 and the cooperation of extending column 304 On terminal box 3.In addition, being provided with the supporting element 12 to support the first pcb board 2, the top of supporting element 12 on the inner sidewall of pedestal 1 The top of portion and supporting block 111 substantially in the same plane, to realize the support to the first pcb board, supporting element 12 have to On be extended with pillar 121, the through-hole 22 passed through for pillar 121 is offered on the first pcb board 2, the first pcb board 2 passes through pillar 121 and through-hole 22 cooperation and be arranged on pedestal 1.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model Protection scope within.

Claims

1. a kind of concentrator includes terminal box (3) and current transformer (30), live end is arranged in the terminal box (3) Sub (31) and function terminal (32) are provided with the first pcb board (2) on the upside of the terminal box (3), it is characterised in that: the electricity Current transformer (30), function terminal (32) and voltage terminal (31) are sequentially arranged from top to bottom, the current transformer (30) It is plugged in terminal box (3), and is electrically connected by the second pin (302) with the first pcb board (2)；Setting in the terminal box (3) Have the second pcb board (34), the function terminal (32) is fixed on the second pcb board (34), and passes through the second pcb board (34) and the One pcb board (2) electrical connection.

2. concentrator according to claim 1, it is characterised in that: the function terminal (32) has the conduction extended downwardly Connecting column (321) offers the perforation (342) passed through for being conductively connected column (321), the function on second pcb board (34) Energy terminal (32) is by being conductively connected column (321) and perforate the cooperation realization of (342) and being electrically connected for the second pcb board (34), institute State the row's needle (341) for being additionally provided on the second pcb board (34) and being electrically connected with the first pcb board (2).

3. concentrator according to claim 2, it is characterised in that: be removedly provided with outer cover on the terminal box (3) (35), and there is the cover board (38) matched with outer cover (35), second pcb board (34) and function end on the terminal box (3) Sub (32) are located in the space of outer cover (35) enclosing, and offer that the stitch of supply and discharge needle (341) passes through on the cover board (38) leads to Hole (381).

4. concentrator according to claim 3, it is characterised in that: be provided with the first card on the lateral wall of the outer cover (35) It detains (351), accordingly, on the terminal box (3) there is the first button hole (300) matched with the first buckle (351), it is described outer Cover (35) is mounted on terminal box (3) by the cooperation of the first buckle (351) and the first button hole (300)；Alternatively, the outer cover (35) side and terminal box (3) are mating, and the other side is fixed on the inner sidewall of terminal box (3) by buckle structure.

5. concentrator according to claim 1, it is characterised in that: form on the terminal box (3) for current transformer (30) accommodation groove therein (301) are planted from top to bottom.

6. concentrator according to claim 5, it is characterised in that: offer opening on the side wall of the accommodation groove (301) (3010), rib (303) are formed in the one side wall of the current transformer (30), in the case where assembling completion status, the rib (303) it is located in corresponding opening (3010).

7. concentrator according to claim 1, it is characterised in that: be provided on the terminal box (3) to by voltage end Sub (31) match the connecting plate (33) that the first pin (311) of connection is concentrated, and offer multiple power supplies on the connecting plate (33) The slot (331) that the first pin (311) of pressure side (31) pairing connection plugs, the voltage terminal (31) pass through the first pin (311) it is connect with the cooperation of slot (331) with connecting plate (33), first pin (311) exposes to slot (331) outside, institute It states voltage terminal (31) and is able to achieve by first pin (311) and is electrically connected with the first pcb board (2).

8. concentrator according to claim 7, it is characterised in that: the connecting plate (33) is located at inserting for voltage terminal (31) Enter end, and the connecting plate (33) extends along the length direction of the first pcb board (2), the slot (331) is provided with connecting plate (33) Lateral wall on.

9. concentrator according to claim 8, it is characterised in that: the longitudinal section of first pin (311) is in L substantially Type, first pin (311) include plate (3111) and are arranged on plate (3111) and prolong to the first pcb board (2) direction The top of the contact pin (3112) stretched, the plate (3111) is provided with the conducting wire being connected with voltage terminal (31), the slot It (331) include the groove (3311) plugged for plate (3111) and the through slot (3312) passed through for contact pin wire assembly, institute The first pin (311) is stated to be plugged in slot (331) afterwards and connect with the first pcb board (2).

10. according to claim 1 to concentrator described in any one of 9 claims, it is characterised in that: the terminal box (3) Top be provided with extending column (304), offer the location hole passed through for extending column (304), institute on first pcb board (2) The first pcb board (2) is stated to be mounted on terminal box (3) by the cooperation of location hole and extending column (304).

11. concentrator according to claim 10, it is characterised in that: the concentrator has pedestal (1), the terminal box (3) removedly it is fixed on the side of the pedestal (1) length direction.

12. concentrator according to claim 11, it is characterised in that: be provided with card on the lateral wall of the terminal box (3) Block (39), the pedestal (1) offer the second button hole matched with fixture block (39) on the corresponding position of fixture block (39) (13), the terminal box (3) being fixedly connected by fixture block (39) and the cooperation realization of the second button hole (13) and pedestal (1).

13. concentrator according to claim 12, it is characterised in that: be provided with second on the inner sidewall of the pedestal (1) It buckles (11), the card slot (21) matched with the second buckle (11) is offered on first pcb board (2), the pedestal (1) The supporting block (111) to support the first pcb board (2) is provided on inner sidewall, the supporting block (111) is located at the second buckle (11) lower part is assembled under completion status, and first pcb board (2) is located between the second buckle (11) and supporting block (111).

14. concentrator according to claim 13, it is characterised in that: form reinforcement on the inner sidewall of the pedestal (1) Plate (19), second buckle (11) and supporting block (111) are arranged at the top of stiffening plate (19) inner sidewall.