CN213426628U

CN213426628U - Circuit board assembly structure of electric power instrument

Info

Publication number: CN213426628U
Application number: CN202022418387.6U
Authority: CN
Inventors: 肖云强; 肖若迪
Original assignee: Zhejiang Kaidi Electric Co ltd
Current assignee: Zhejiang Kaidi Electric Co ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-06-11
Anticipated expiration: 2030-10-27

Abstract

The utility model provides a circuit board assembly structure of electric power instrument, includes the main casing body, backplate and a plurality of circuit board, the main casing body is equipped with the chamber that holds the circuit board, it is equipped with a plurality of cartridge grooves to supplying each circuit board cartridge on the lateral wall that holds the chamber, it is each to be equipped with the vertical regulation hole that corresponds the adjustability on the lateral wall between the cartridge groove, the side of vertical regulation hole is equipped with the slide rail that corresponds, be equipped with in the vertical regulation hole rather than constituting the folding extensible member of guide rail complex, folding extensible member one end fixed seal connects in vertical regulation hole one end, folding extensible member can extend the shrink, folding extensible member constitutes the louvre that is equipped with vertical regulation hole to be convenient for adjust the heat dissipation capacity size of electric power instrument.

Description

Circuit board assembly structure of electric power instrument

Technical Field

The utility model relates to an instrument and meter field, concretely relates to circuit board assembly structure of electric power instrument.

Background

The power meter is widely used for measuring power parameters, monitoring and analyzing power quality, controlling electrical equipment and the like in a power system, and is an indispensable power measuring and controlling device for a modern power system. At present, most of common electric power instrument products adopt screws and related supporting and fixing parts to be fixed in an inner cavity of a shell one by one, so that the electric power instrument products have the following defects: firstly, each circuit board is assembled by adopting screws and supporting and fixing parts, so that the assembly process of the product is complicated and complicated, the assembly efficiency is low, and the operation cost of enterprises is high; secondly, each circuit board is not arranged in the cavity of the shell in a reasonable and orderly manner, and has no corresponding heat dissipation structure, so that the problems of poor heat dissipation performance, poor stability and the like of the product are easily caused. Therefore, the electric power instrument product with the technical scheme still has certain defects, and further improvement and optimization of the structure are needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a circuit board assembly structure of electric power instrument:

Preferably, folding extensible member includes a plurality of activity folding connection cloth in proper order and the magnetic metal piece of a pair of fixed connection outermost end connection cloth both sides, two inside walls of slide rail are equipped with and constitute magnetism with the magnetic metal piece and inhale complex iron metal strip. Firstly, the magnetic metal sheet is attracted on the iron metal strip, so that the connecting cloth is stretched and unfolded to the maximum extent; secondly, the iron metal strip has good wear resistance, and the service life of the product is prolonged; finally, because vertical regulation hole is along main casing vertical distribution, and the iron metal strip corresponds vertical regulation hole, consequently can improve the structural stability of main casing.

Preferably, the connecting cloth is made of non-woven fabrics. The non-woven fabric material has good air permeability and filterability, not only can circulate certain air, but also can effectively block external dust.

Preferably, the cartridge groove comprises two vertical protruding muscle strips that set up on main casing body inside wall, two the opposite face of protruding muscle strip all is equipped with a plurality of adjustment tank of evenly distributed, the adjustment tank constitutes the cooperation of pegging graft with the roof that is equipped with, the circuit board is installed in the cartridge inslot and constitutes spacing cooperation with the roof. The circuit boards have corresponding dimension deviation, and the relative sliding condition often occurs due to unstable circuit board installation caused by the dimension deviation in the actual installation process. Can insert the roof according to actual demand in the adjustment tank of corresponding size this moment, then install the circuit board again for the circuit board pushes up on the roof, thereby stabilizes the mounted position of circuit board, prevents that the circuit board from taking place relative slip.

Preferably, the outer end of the accommodating cavity is provided with a first clamping groove and a first clamping hook which are opposite, one end of the back plate is provided with a second clamping hook corresponding to the first clamping groove, and the other end of the back plate is provided with a clamping groove which forms a clamping fit with the first clamping hook

Has the advantages that: when the folding telescopic piece is stretched along the vertical adjusting hole, the heat dissipation holes are continuously reduced, the internal and external interaction ventilation channels are reduced, the heat dissipation capacity of the electric power instrument is reduced, and the dustproof effect is improved; and when folding the extensible member along vertical regulation hole shrink, the louvre constantly increases this moment, and inside and outside mutual ventilation passageway increases, but the heat dissipation capacity increase of electric power instrument, dustproof effect reduces. In addition, the radiating holes are located between the two adjacent circuit boards, and the radiating effect is better.

Drawings

Fig. 1 is a schematic structural diagram 1 of a front case of embodiment 1.

Fig. 2 is a schematic structural diagram 2 of the front case of embodiment 1.

Fig. 3 is a back schematic view of the front case of embodiment 1.

Fig. 4 is a back schematic view of the front case of embodiment 2.

Fig. 5 is an enlarged schematic view of a in fig. 4.

Fig. 6 is a schematic structural diagram of a backplane of embodiment 1.

1. A main housing; 2. a back plate; 3. a circuit board; 4. inserting the slots; 5. a vertical adjustment hole; 6. a slide rail; 7. folding the telescoping piece; 8. connecting cloth; 9. a magnetic metal sheet; 10. a ferrous metal strip; 11. a convex rib; 12. an adjustment groove; 13. a top plate; 14. a first card slot; 15. a first hook; 16. a second card slot; 17. a second hook.

Detailed Description

The present invention will be further described with reference to FIGS. 1-6 and examples 1-2.

Example 1: a circuit board assembly structure of an electric instrument comprises a main shell 1, a back plate 2 and a plurality of circuit boards 3. The outer end of the accommodating cavity is provided with a first clamping groove 14 and a first clamping hook 15 which are opposite, one end of the back plate 2 is provided with a second clamping hook 17 corresponding to the first clamping groove 14, and the other end is provided with a clamping groove which forms a clamping fit with the first clamping hook 15

The main casing body 1 is equipped with the chamber that holds circuit board 3, it is equipped with a plurality of cartridge grooves 4 to supplying each circuit board 3 cartridge to hold on the lateral wall in chamber, each pair be equipped with the vertical regulation hole 5 of corresponding adjustability on the lateral wall between cartridge groove 4, the side of vertical regulation hole 5 is equipped with corresponding slide rail 6. Be equipped with in the vertical regulation hole 5 rather than constituting the folding extensible member 7 of guide rail complex, folding extensible member 7 one end fixed seal connects in vertical regulation hole 5 one end, folding extensible member 7 can stretch out and draw back, folding extensible member 7 constitutes the louvre that is equipped with vertical regulation hole 5 to be convenient for adjust the heat dissipation capacity size of electric power instrument. Folding extensible member 7 includes a plurality of activity folding connection cloth 8 in proper order and a pair of fixed connection outermost end connection cloth 8 both sides's magnetic metal piece 9, two inside walls of slide rail 6 are equipped with and constitute magnetism with magnetic metal piece 9 and inhale complex iron metal strip 10. Firstly, the magnetic metal sheet 9 is sucked on the iron metal strip 10, so that the connecting cloth 8 is stretched and unfolded to the maximum extent; secondly, the iron metal strip 10 has good wear resistance, and the service life of the product is prolonged; finally, since the vertical adjustment holes 5 are vertically distributed along the main housing 1 and the ferrous metal strip 10 corresponds to the vertical adjustment holes 5, the structural stability of the main housing 1 can be improved. The connecting cloth 8 is made of non-woven fabrics. The non-woven fabric material has good air permeability and filterability, not only can circulate certain air, but also can effectively block external dust.

Example 2: a circuit board assembly structure of an electric instrument comprises a main shell 1, a back plate 2 and a plurality of circuit boards 3. The outer end of the accommodating cavity is provided with a first clamping groove 14 and a first clamping hook 15 which are opposite, one end of the back plate 2 is provided with a second clamping hook 17 corresponding to the first clamping groove 14, and the other end is provided with a clamping groove which forms a clamping fit with the first clamping hook 15

Cartridge groove 4 comprises two vertical protruding ribs 11 that set up on main casing body 1 inside wall, two the opposite face of protruding rib 11 all is equipped with a plurality of adjustment tank 12 of evenly distributed, adjustment tank 12 constitutes the cooperation of pegging graft with the roof 13 that is equipped with, circuit board 3 installs in cartridge groove 4 and constitutes spacing cooperation with roof 13. The circuit boards 3 have corresponding dimension deviation, and the relative sliding condition often occurs due to unstable circuit board installation caused by the dimension deviation in the actual installation process. At this time, according to actual requirements, the top plate 13 is inserted into the adjusting groove 12 with the corresponding size, and then the circuit board is mounted, so that the circuit board is supported on the top plate 13, thereby stabilizing the mounting position of the circuit board and preventing the circuit board from sliding relatively.

It is obvious that the above embodiments of the present invention are only examples for illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. There is no need or no way to give poor examples of all embodiments. And that such obvious changes and modifications are within the scope of the present invention as defined by the appended claims.

Claims

1. The utility model provides a circuit board assembly structure of electric power instrument which characterized in that: including main casing body (1), backplate (2) and a plurality of circuit board (3), main casing body (1) is equipped with the chamber that holds circuit board (3), it is equipped with a plurality of cartridge grooves (4) to supplying each circuit board (3) cartridge on the lateral wall that holds the chamber, and each is every be equipped with vertical regulation hole (5) that correspond the adjustability on the lateral wall between cartridge groove (4), the side of vertical regulation hole (5) is equipped with corresponding slide rail (6), be equipped with in vertical regulation hole (5) and constitute the folding extensible member (7) of guide rail complex rather than, folding extensible member (7) one end fixed seal connects in vertical regulation hole (5) one end, folding extensible member (7) can extend the shrink, folding extensible member (7) constitute the louvre that is equipped with vertical regulation hole (5).

2. A circuit board assembling structure of an electric power instrument according to claim 1, characterized in that: folding extensible member (7) include a plurality of activity folding connection cloth (8) in proper order and a pair of fixed connection outermost end connect the magnetism sheetmetal (9) of cloth (8) both sides, two inside walls of slide rail (6) are equipped with and constitute magnetism with magnetism sheetmetal (9) and inhale complex iron metal strip (10).

3. A circuit board assembling structure of an electric power instrument according to claim 2, characterized in that: the connecting cloth (8) is made of non-woven fabrics.

4. A circuit board assembling structure of an electric power instrument according to claim 1, characterized in that: cartridge groove (4) comprise two vertical setting protruding rib (11) on main casing body (1) inside wall, two the opposite face of protruding rib (11) all is equipped with a plurality of adjustment tank (12) of evenly distributed, adjustment tank (12) constitute the cooperation of pegging graft with roof (13) that is equipped with, circuit board (3) are installed in cartridge groove (4) and are constituted spacing cooperation with roof (13).

5. A circuit board assembling structure of an electric power instrument according to claim 1, characterized in that: the outer end of the accommodating cavity is provided with a first clamping groove (14) and a first clamping hook (15) which are opposite, one end of the back plate (2) is provided with a second clamping hook (17) corresponding to the first clamping groove (14), and the other end of the back plate is provided with a clamping groove which forms a clamping fit with the first clamping hook (15).