CN214252395U

CN214252395U - Modular assembly type electric energy base meter

Info

Publication number: CN214252395U
Application number: CN202023054236.3U
Authority: CN
Inventors: 李萌朝; 张雷; 马亮; 李先怀
Original assignee: Willfar Information Technology Co Ltd
Current assignee: Willfar Information Technology Co Ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-09-21
Anticipated expiration: 2030-12-17

Abstract

The utility model provides a modularization assembled electric energy base table, include: the upper box assembly, the PCB assembly, the CT assembly and the bottom box assembly are sequentially arranged in the bottom box assembly from bottom to top, and the upper box assembly is detachably buckled with the bottom box assembly from top to bottom; the bottom of the inner side of the bottom box body is further provided with a plurality of first positioning portions, the lower PCB board is arranged on the first positioning portions, the opposite sides of the inner portion of the bottom box body are further provided with at least one pair of extending arms, middle clamping grooves and upper clamping grooves are formed in the extending arms respectively, the middle PCB board is arranged in the paired middle clamping grooves, and the upper PCB board is arranged in the paired upper clamping grooves. The PCB assembly and the CT assembly are fixed in a clamping and positioning mode, the assembly efficiency is higher, and the stability is higher.

Description

Modular assembly type electric energy base meter

Technical Field

The utility model belongs to the technical field of the monitoring instrument, concretely relates to modularization assembled electric energy base meter.

Background

At present, with the rapid development of the national smart grid, the demand of the smart meter is increasing day by day. Because the quantity of the electric energy monitors is huge, the electric energy monitors must be assembled reliably and at lower cost, and the development of various manufacturers is severely restricted.

Traditional electric energy base meter design is complicated for the assembly process is complicated, and the installation is inconvenient, for example the fixed of PCB board subassembly and CT subassembly in the electric energy base meter, adopts screw fastening's mode more, wastes time and energy in the assembling process, and assembly efficiency is low, unreliable.

Therefore, there is a need for a modular assembly-type electric energy base meter that can be assembled quickly and reliably.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a modularization assembled electric energy base table adopts the mode of joint to replace the mode of fix with screw when PCB board subassembly and CT subassembly equipment, has improved assembly efficiency and reliability.

In order to achieve the above object, the utility model provides a modularization assembled electric energy base table, include: the upper box assembly, the PCB assembly, the CT assembly and the bottom box assembly are sequentially arranged in the bottom box assembly from bottom to top, the upper box assembly is detachably buckled with the bottom box assembly from top to bottom, the PCB assembly comprises an upper PCB, a middle PCB and a lower PCB which are sequentially arranged in parallel from top to bottom, the bottom box assembly comprises a bottom box body, a clamping supporting assembly is arranged in the bottom box body from bottom to top, and the CT assembly is clamped on the corresponding clamping supporting assembly; the bottom box comprises a bottom box body and is characterized in that a plurality of first positioning parts are further arranged at the bottom of the bottom box body from the bottom, lower PCB boards are arranged on the first positioning parts, at least one pair of extending arms are further arranged at the bottom of the inner opposite sides of the bottom box body from the bottom, middle clamping grooves and upper clamping grooves are respectively arranged on the extending arms, the middle PCB boards are arranged in the paired middle clamping grooves to achieve positioning in a first horizontal direction, and the upper PCB boards are arranged in the paired upper clamping grooves to achieve positioning in the first horizontal direction.

As a further improvement of the above scheme, the clamping support assembly comprises a vertical support member and a horizontal limiting clamping member, wherein the vertical support member is a cylinder and is used for providing vertical support for the arrangement of the copper bar of the CT assembly; the horizontal clamping parts are elastic extending supports with pressing tongues in pairs, and the copper strips of the CT assembly are arranged between the horizontal limiting clamping parts in pairs and are positioned below the pressing tongues.

As a further improvement of the above scheme, the first positioning portions are positioning columns which are uniformly distributed around the bottom of the bottom box body, and correspondingly, the lower PCB is provided with first positioning holes which are matched with the first positioning portions.

As a further improvement of the scheme, the positioning columns comprise fixing columns and inserting columns at the upper ends of the fixing columns, and the number and the positions of the positioning columns correspond to the first positioning holes of the lower PCB.

As a further improvement of the above scheme, the bottom of the bottom case body is further provided with a second positioning portion, the second positioning portion is a positioning plate, correspondingly, a second positioning groove is formed in the middle PCB, and the second positioning portion is matched with the second positioning groove to realize positioning of the middle PCB in the second horizontal direction.

As a further improvement of the above scheme, the PCB assembly further comprises a first row of pin row female assembly and a second row of pin row female assembly, the first row of pin row female assembly and the second row of pin row female assembly are respectively arranged between the upper PCB and the middle PCB, and when the electrical connection is realized, the second horizontal direction positioning of the upper PCB is realized.

As a further improvement of the scheme, the buckling connection part of the upper box assembly and the bottom box assembly is also provided with lead sealing paper.

As a further improvement of the scheme, a tunnel opening for the switching pin header to pass through is formed in one side face of the bottom box body, and when the bottom box body is not started, a plug is arranged on the tunnel opening in a blocking mode.

As a further improvement of the scheme, a lock tongue or a lock opening of a locking buckling structure for splicing and locking adjacent modules is further arranged on one side surface of the bottom box body.

As a further improvement of the above scheme, the lateral wall of the bottom box body is provided with a clamping hole, correspondingly, the position of the upper box component corresponding to the clamping hole is provided with a clamping hook, the upper box component and the bottom box component are assembled by inserting the clamping hook into the clamping hole, and the clamping hook and the clamping hole are provided with corresponding assembly inclined planes.

Because the utility model adopts the above technical scheme, make the beneficial effect that this application possesses lie in:

1. the utility model discloses a modularization assembled electric energy base table, include: the upper box assembly, the PCB assembly, the CT assembly and the bottom box assembly are sequentially arranged in the bottom box assembly from bottom to top, and the upper box assembly is detachably buckled with the bottom box assembly from top to bottom; the bottom box comprises a bottom box body and is characterized in that a plurality of first positioning parts are further arranged at the bottom of the bottom box body from the bottom, lower PCB boards are arranged on the first positioning parts, at least one pair of extending arms are further arranged at the bottom of the inner opposite sides of the bottom box body from the bottom, middle clamping grooves and upper clamping grooves are respectively arranged on the extending arms, the middle PCB boards are arranged in the paired middle clamping grooves to achieve positioning in a first horizontal direction, and the upper PCB boards are arranged in the paired upper clamping grooves to achieve positioning in the first horizontal direction. Due to the arrangement, the PCB components are connected in a clamping manner, so that the use of screws is greatly reduced, and the assembly efficiency is improved; in addition, the extension arm has elasticity, so that the middle PCB is stably and reliably arranged under the action of the second positioning part; because the female subassembly of first row of pin row and the female subassembly setting of second row of pin row are between well PCB board and last PCB board, consequently to last PCB board in the communication, also play the effect of support, and under the effect of cantilever arm, go up the PCB board and be the reliable setting that stabilizes. Adopt the mode of joint and location to fix PCB subassembly and CT subassembly, for traditional screw connection mode, the packaging efficiency is higher, and the steadiness is higher.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts;

fig. 1 is a schematic diagram 1 of a local explosion of a modular assembled electric energy base meter according to the present invention;

fig. 2 is a schematic diagram 2 of a local explosion of the modular assembled electric energy base meter of the present invention;

fig. 3 is a schematic perspective view of the bottom case body of the present invention:

fig. 4 is a top view of the bottom case body of the present invention;

the reference numbers are as follows:

1. an upper box assembly; 11. a hook; 2. a PCB board assembly; 21. an upper PCB board; 22. a middle PCB board; 221. a second positioning groove; 23. a lower PCB board; 231. a first positioning hole; 24. a first row of needle row female assemblies; 25. a second row of pin header assemblies; 3. a CT component; 4. a bottom case assembly; 41. a bottom case body; 411. clamping the support component; 4111. a vertical support; 4112. a horizontal limiting clamping piece; 412. a first positioning portion; 413. a reach arm; 414. a middle clamping groove; 415. an upper clamping groove; 416. a second positioning portion; 42. a clamping hole; 5. a tunnel portal; 6. and a lock tongue.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators in the embodiments of the present invention, such as the first, second, upper, lower, left, right, front and rear … …, are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture as shown in the drawings, and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

The invention will be further described with reference to the following figures:

referring to fig. 1-4, the utility model provides a modularization assembled electric energy base meter, include: the upper box assembly 1, the PCB assembly 2, the CT assembly 3 and the bottom box assembly 4, wherein the CT assembly 3 and the PCB assembly 2 are sequentially arranged in the bottom box assembly 4 from bottom to top, the upper box assembly 1 is detachably buckled with the bottom box assembly 4 from top to bottom, the PCB assembly 2 comprises an upper PCB 21, a middle PCB 22 and a lower PCB 23, the bottom box assembly 4 comprises a bottom box body 41, a clamping support assembly 411 is arranged in the bottom box body 41 from bottom to bottom, and the CT assembly 3 is clamped on the corresponding clamping support assembly 411; the bottom of the inner side of the bottom box body 41 is further provided with a plurality of first positioning portions 412 from the bottom, the lower PCB 23 is clamped on the first positioning portions 412, the opposite side of the inner side of the bottom box body 41 is further provided with at least one pair of protruding arms 413 from the bottom, the protruding arms 413 are respectively provided with a middle clamping groove 414 and an upper clamping groove 415, the middle PCB 22 is clamped in the paired middle clamping grooves 414 to realize the positioning in the first horizontal direction, and the upper PCB 21 is clamped in the paired upper clamping grooves 415 to realize the positioning in the first horizontal direction. Due to the arrangement, the PCB components are connected in a clamping manner, so that the use of screws is greatly reduced, and the assembly efficiency is improved; in addition, because the protruding arm 413 has elasticity, the middle PCB 22 is firmly and reliably disposed under the action of the second positioning portion 416; since the first pin row mother assembly 24 and the second pin row mother assembly 25 are disposed between the middle PCB 22 and the upper PCB 21, the upper PCB 21 is supported while communicating with the middle PCB, and the upper PCB 21 is stably and reliably disposed under the action of the extension arm 413. Adopt the mode of joint and location to fix PCB subassembly and CT subassembly 3, for traditional screw connection mode, the packaging efficiency is higher, and the steadiness is higher.

As a preferred embodiment, the clamping support assembly 411 includes a vertical support 411 and a horizontal position-limiting clamping member 4112, wherein the vertical support 411 is a cylinder and is used for providing a vertical support for the copper bar arrangement of the CT assembly 3; the horizontal clamping members are pairs of elastic extending supports with pressing tongues, and the copper bars of the CT assemblies 3 are arranged between the pairs of horizontal limiting clamping members 4112 and under the pressing tongues, so that the positions of the CT assemblies 3 in the first horizontal direction are limited, and therefore the CT assemblies 3 are supported by the vertical support 411 and limited by the positions of the horizontal limiting clamping members 4112 in the first horizontal direction, and the fixation of the CT assemblies 3 is realized.

In a preferred embodiment, the first positioning portions 412 are positioning posts uniformly distributed around the bottom of the bottom case body 41, and correspondingly, the lower PCB 23 is provided with first positioning holes 231 matched with the first positioning portions 412. The positioning columns comprise fixing columns and inserting columns at the upper ends of the fixing columns, and the number and the positions of the positioning columns correspond to the first positioning holes 231 of the lower PCB 23. In this embodiment, the number of the first positioning portions 412 is four, and the four first positioning portions are uniformly distributed at four corners of the bottom case body 41, so as to stably support and position the lower PCB 23, and the installation is convenient.

As a preferred embodiment, the middle PCB 22 is clamped in the paired middle clamping grooves 414, so that the positioning and installation of the middle PCB 22 in the first horizontal direction are realized, in order to be able to define the position of the middle PCB 22 in the second horizontal direction, the bottom of the bottom case body 41 is provided with a second positioning portion 416, the second positioning portion 416 is a positioning plate, correspondingly, the middle PCB 22 is provided with a second positioning groove 221, the second positioning portion 416 and the second positioning groove 221 are matched to realize the positioning and installation of the middle PCB 22 in the second horizontal direction, and the middle PCB 22 is also installed stably and quickly by clamping.

As a preferred embodiment, the PCB assembly further includes a first pin row header assembly 24 and a second pin row header assembly 25, the first pin row header assembly 24 and the second pin row header assembly 25 are respectively disposed between the upper PCB 21 and the middle PCB 22, and the upper PCB 21 is positioned in the second horizontal direction while the electrical connection is achieved.

In a preferred embodiment, the buckling joint of the upper case assembly 1 and the bottom case assembly 4 is further provided with a lead sealing paper for preventing theft, and the lead sealing paper is simple and easy to operate relative to the arrangement of a lead sealing rope.

As a preferred embodiment, a tunnel opening 5 for passing through the switching pin header is formed in one side surface of the bottom case body 41, when the bottom case is not started, a plug is arranged on the tunnel opening 5 in a blocking manner, and the tunnel opening 5 is conveniently electrically connected with other modules, so that modular assembly is realized.

As a preferred embodiment, a lock tongue 6 or a lock notch of a locking fastening structure for splicing and locking adjacent modules is further arranged on one side surface of the bottom case body 41, and the lock tongue 6 or the lock catch is arranged, so that the electric energy base meter is convenient to connect with other module structures, and the modular assembly is realized.

As a preferred embodiment, the sidewall of the bottom case body 41 is provided with a fastening hole 42, correspondingly, the position of the upper case assembly 1 corresponding to the fastening hole 42 is provided with a hook 11, the upper case assembly 1 and the bottom case assembly 4 are assembled by inserting the hook 11 into the fastening hole 42, and the hook 11 and the fastening hole 42 have corresponding assembling slopes.

The assembling steps of the modularized assembled electric energy base meter are as follows:

firstly, arranging copper bars of the CT component 3 on the vertical supporting member 411 in sequence, and enabling the copper bars to be positioned between the horizontal limiting clamping members 4112 and below the pressing tongues of the horizontal limiting clamping members 4112; the first positioning hole 231 of the lower PCB 23 is clamped in the first positioning portion 412 to complete the installation of the lower PCB 23; then, the middle PCB 22 is clamped in the paired middle clamping grooves 414 of the protruding arm 413 to achieve the first horizontal position limitation, and the second horizontal position of the middle PCB 22 is adjusted, so that the second positioning groove 221 of the middle PCB 22 is clamped in the second positioning portion 416 to achieve the second horizontal position limitation; inserting a first row of pin row female assemblies 24 and a second row of pin row female assemblies 25 arranged on a middle PCB 22 into corresponding jacks of an upper PCB 21 respectively, and simultaneously shifting a protruding arm 413 (with certain elasticity) to enable the upper PCB 21 to be clamped in paired upper clamping grooves 415 of the protruding arm 413 to complete the installation of the upper PCB 21, and then buckling an upper box assembly 1 with a bottom box assembly 4 from top to bottom to complete the assembly of the electric energy base meter; and then lead sealing paper is pasted at the joint of the upper box component 1 and the bottom box component 4 to meet the design requirement of anti-theft.

The above is a detailed introduction of the present invention, and the principles and embodiments of the present invention have been explained herein using specific embodiments, and the explanations of the above embodiments are only used to help understand the methods and core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. A modular fabricated electrical energy base meter, comprising: the upper box assembly, the PCB assembly, the CT assembly and the bottom box assembly are sequentially arranged in the bottom box assembly from bottom to top, the upper box assembly is detachably buckled with the bottom box assembly from top to bottom, the PCB assembly comprises an upper PCB, a middle PCB and a lower PCB which are sequentially arranged in parallel from top to bottom, the bottom box assembly comprises a bottom box body, the bottom of the inner side of the bottom box body is provided with a clamping support assembly, and the CT assembly is clamped on the corresponding clamping support assembly; the bottom box comprises a bottom box body and is characterized in that a plurality of first positioning parts are further arranged at the bottom of the bottom box body from the bottom, lower PCB boards are arranged on the first positioning parts, at least one pair of extending arms are further arranged at the bottom of the inner opposite sides of the bottom box body from the bottom, middle clamping grooves and upper clamping grooves are respectively arranged on the extending arms, the middle PCB boards are arranged in the paired middle clamping grooves to achieve positioning in a first horizontal direction, and the upper PCB boards are arranged in the paired upper clamping grooves to achieve positioning in the first horizontal direction.

2. The modular assembled electrical energy base meter according to claim 1, wherein the retaining support assembly comprises a vertical support member and a horizontal limiting retaining member, the vertical support member is a cylinder for providing vertical support for the copper bar arrangement of the CT assembly; the horizontal limiting clamping parts are elastic extending supports with pressing tongues in pairs, and the copper strips of the CT assembly are arranged between the horizontal limiting clamping parts in pairs and are positioned below the pressing tongues.

3. The modular assembly type electric energy base meter according to claim 1 or 2, wherein the first positioning portions are positioning posts which are uniformly arranged around the bottom of the bottom box body, and correspondingly, the lower PCB is provided with first positioning holes matched with the first positioning portions.

4. The modular assembly type electric energy base meter as claimed in claim 3, wherein the positioning posts comprise fixing posts and inserting posts at upper ends thereof, and the number and positions of the positioning posts correspond to the first positioning holes of the lower PCB.

5. The modular assembly type electric energy base meter according to claim 1 or 2, wherein the bottom of the bottom case body is further provided with a second positioning portion, the second positioning portion is a positioning plate, correspondingly, a second positioning groove is formed in the middle PCB, and the second positioning portion and the second positioning groove are matched to realize the positioning of the middle PCB in the second horizontal direction.

6. The modular fabricated electrical energy base meter of claim 1 or 2, wherein the PCB assembly further comprises a first pin header assembly and a second pin header assembly, the first pin header assembly and the second pin header assembly being disposed between the upper PCB and the middle PCB, respectively.

7. The modular assembly type electric energy base meter according to claim 1 or 2, wherein the fastening joint of the upper case assembly and the bottom case assembly is further provided with lead sealing paper.

8. The modular assembly type electric energy base meter according to claim 1 or 2, wherein a tunnel opening for the through connection pin header to pass through is formed in one side face of the bottom case body, and a plug is arranged on the tunnel opening in a blocking mode when the bottom case body is not started.

9. The modular assembly type electric energy base meter according to claim 1 or 2, wherein a lock tongue or a lock notch of a locking fastening structure for splicing and locking adjacent modules is further arranged on one side surface of the bottom box body.

10. The modular assembly type electric energy base meter as claimed in claim 1 or 2, wherein the side wall of the bottom case body is provided with a clamping hole, correspondingly, a clamping hook is arranged at a position of the upper case assembly corresponding to the clamping hole, the upper case assembly and the bottom case assembly are assembled by inserting the clamping hook into the clamping hole, and the clamping hook and the clamping hole have corresponding assembling inclined surfaces.