CN210668136U

CN210668136U - Switch box and switch

Info

Publication number: CN210668136U
Application number: CN201921369121.8U
Authority: CN
Inventors: 叶龙; 马涛; 田涵朴; 郭春林; 李志敏
Original assignee: Henan Zilian Internet Of Things Technology Co Ltd
Current assignee: Henan Zilian Internet Of Things Technology Co Ltd
Priority date: 2019-08-22
Filing date: 2019-08-22
Publication date: 2020-06-02
Anticipated expiration: 2029-08-22

Abstract

The utility model provides a switch box and switch has solved the poor problem of steadiness behind the circuit board installation in the switch box. The switch box comprises a buckle cover and a bottom shell which are integrally formed by insulating plastics, and the buckle cover and the bottom shell are mutually detachably connected; the middle part of the bottom shell is sunken downwards to form an electronic element mounting groove, and an elastic limiting component for preventing the PCB from sliding and dislocating is arranged on a side plate of the electronic element mounting groove; the elastic limiting component comprises a square hole frame and a plastic straight plate matched with the square hole frame, the square hole frame is arranged on the side plate, the upper end and the lower end of the plastic straight plate are fixedly connected with the frame body of the square hole frame, and gaps are reserved between the left side and the right side of the plastic straight plate and the frame of the square hole frame; the plastic straight plate is provided with a right-angle triangular prism which protrudes inwards. When the circuit board is influenced by upward force, the convex right-angle triangular prism prevents the circuit board from sliding and shifting towards the buckling cover; meanwhile, the elasticity of the elastic limiting component is matched with the right-angled triangular prism, so that the pressing force required when the circuit board is installed is reduced.

Description

Switch box and switch

Technical Field

The utility model relates to an assembly box body field of switch especially indicates a switch box and switch.

Background

Among the prior art, the switch box is when the installation circuit board, is usually the direction of pushing the circuit board to the drain pan from the direction of buckle closure, but often because actual work progress, generally can be harder via the through wires hole, the electric wire of being connected with the circuit board, can outwards have certain butt dynamics to the circuit board for the circuit board installation is unstable, insecure, often can slide and then produce the dislocation to the buckle closure direction.

SUMMERY OF THE UTILITY MODEL

In order to solve the poor problem of steadiness after the circuit board installation in the switch box that exists among the background art, the utility model provides a switch box and switch.

The technical scheme of the utility model is that: a switch box comprises a buckle cover and a bottom shell which are integrally formed by insulating plastics, wherein the buckle cover and the bottom shell are mutually detachably connected; the middle part of the bottom shell is sunken downwards to form an electronic element mounting groove, a PCB is arranged in the electronic element mounting groove, and an elastic limiting component for preventing the PCB from sliding and dislocating is arranged on a side plate of the electronic element mounting groove; the elastic limiting component comprises a square hole frame and a plastic straight plate matched with the square hole frame, the square hole frame is arranged on the side plate, the upper end and the lower end of the plastic straight plate are fixedly connected with the frame body of the square hole frame, and gaps are reserved between the left side and the right side of the plastic straight plate and the frame of the square hole frame; the plastic straight plate is provided with a right-angled triangular prism which protrudes inwards; the bottom shell is provided with a ventilation structure.

An electronic element mounting seat for mounting electronic elements of the PCB is arranged in the bottom shell, and the electronic element mounting seat form a stepped structure; the electronic element mounting base is provided with a plurality of threading holes.

The buckle cover is detachably connected with the bottom shell through a buckle component; the buckle component comprises a columnar positioning clamp and a positioning clamp groove matched with the positioning clamp; the positioning card is fixedly arranged at the four corners of the buckle cover and extends towards the bottom shell, and the positioning card comprises at least two vertical arc-shaped clamping blocks; the lower end of the arc-shaped clamping block is provided with a barb II, the upper part of the inner side surface of the arc-shaped clamping block is provided with a stop block for preventing extrusion deformation and fracture, and the stop block is a right-angled trapezoid block or a right-angled triangle block with a wide upper part and a narrow lower part; the positioning clamping grooves are formed in four corners of the upper panel of the bottom shell.

The downside of buckle closure is equipped with the calibration integrated circuit board that is used for the calibration position, and the lower extreme of calibration integrated circuit board is equipped with inside bellied barb I, and the upper portion of drain pan is equipped with the calibration draw-in groove with calibration integrated circuit board matched with.

The ventilation structure comprises ventilation holes and a ventilation grid; the air holes are arranged at the bottom of the electronic element mounting groove, and the air grids are arranged on the side plates.

A switch comprises a touch screen, a touch screen circuit board for controlling the touch screen, a PCB circuit board and a switch box; the switch box comprises a buckle cover and a bottom shell which are integrally formed by insulating plastics, and the buckle cover and the bottom shell are mutually detachably connected; the touch screen is attached to the buckle cover, a circuit board clamping groove is formed in the middle of the buckle cover, and the touch screen circuit board is arranged in the circuit board clamping groove; the middle part of the bottom shell is sunken downwards to form an electronic element mounting groove, the PCB is arranged in the electronic element mounting groove, and an elastic limiting component for preventing the PCB from sliding and dislocating is arranged on a side plate of the electronic element mounting groove; the elastic limiting component comprises a square hole frame and a plastic straight plate matched with the square hole frame, the square hole frame is arranged on the side plate, the upper end and the lower end of the plastic straight plate are fixedly connected with the frame body of the square hole frame, and gaps are reserved between the left side and the right side of the plastic straight plate and the frame of the square hole frame; the plastic straight plate is provided with a right-angled triangular prism which protrudes inwards; the lower side of the PCB is connected with a plurality of electronic elements; the bottom shell is provided with a ventilation structure.

A calibration board card used for calibrating the direction is arranged on the lower side of the buckle cover, an inward-protruding barb I is arranged at the lower end of the calibration board card, and a calibration clamping groove matched with the calibration board card is arranged at the upper part of the bottom shell; and a limiting groove matched with the calibration board card is arranged at the edge of the touch screen circuit board.

The utility model has the advantages that: the utility model adds the elastic spacing component which is integrally formed by plastic on the bottom shell, when the circuit board is influenced by upward holding force after being installed in place, the right-angle triangular prism which is raised on the elastic spacing component can block the circuit board and prevent the circuit board from sliding and shifting towards the buckle closure direction at the upper part; meanwhile, the elastic limiting component made of plastic has certain elasticity and is matched with the right-angled triangular prism, so that when the circuit board is pressed downwards for installation, the elastic limiting component is easily extruded outwards, the installation of the circuit board is facilitated, the pushing force required by pressing is reduced, and the installation difficulty is further reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 these drawings without creative efforts.

Fig. 1 is an exploded view I of an embodiment of the present invention;

FIG. 2 is an exploded view II from the rear perspective of FIG. 1;

FIG. 3 is a schematic view of the fastening state of the cover and the bottom housing in FIG. 1;

FIG. 4 is an isolated three-dimensional structure of the closure of FIG. 1;

FIG. 5 is an isolated three-dimensional structure of the closure of FIG. 2;

FIG. 6 is an enlarged view of the structure at A in FIG. 5;

FIG. 7 is an enlarged view of the structure at B in FIG. 5;

FIG. 8 is an isolated three-dimensional structure of the bottom case of FIG. 1;

FIG. 9 is an isolated three-dimensional structure of the bottom case of FIG. 2;

fig. 10 is an enlarged view of the structure at C in fig. 8.

In the figure, 1, a touch screen, 2, a buckle cover, 201, a calibration board card, 201-1, barbs I and 202, a positioning card, 202-1, an arc-shaped fixture block, 202-2, a stop block, 202-3, barbs II and 203, a circuit board clamping groove, 3, a touch screen circuit board, 301, a limiting groove, 302, a positioning hole, 4, a PCB circuit board, 5, a bottom shell, 501, a positioning clamping groove, 502, a calibration clamping groove, 503, a bolt hole, 504, an electronic element mounting groove, 504-1, a side plate, 505, an elastic limiting component, 505-1, a square hole frame, 505-2, a plastic straight plate, 505-3, a right triangular prism, 506, an air hole, 507, an air permeable grid, 508, an electronic element mounting seat, 508-1 and a threading hole are arranged.

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 any creative effort belong to the protection scope of the present invention.

An embodiment of a switch: as shown in fig. 1 and 2, the touch screen control device comprises a touch screen 1, a touch screen circuit board 3 for controlling the touch screen 1, a PCB circuit board 4 and a switch box; the switch box comprises a buckle cover 2 and a bottom shell 5 which are integrally formed by insulating plastics, the touch screen 1 is attached to the buckle cover 2, and the shape and the size of the touch screen 1 are the same as the upper surface of the buckle cover 2. As shown in fig. 4 and 5, a hollow circuit board slot 203 is disposed in the middle of the buckle cover 2, and a touch screen circuit board 3 (see fig. 1) for controlling the touch screen 1 is disposed in the circuit board slot 203. As shown in fig. 7, a calibration board 201 is disposed on the lower side of the buckle cover 2, and an inward-protruding barb I201-1 is disposed at the lower end of the calibration board 201. The edge of the touch screen circuit board 3 is provided with a limit groove 301 (refer to fig. 1) matched with the calibration board card 201. The limiting groove 301 is matched with the calibration board 201, so that the touch screen circuit board 3 is fixed on the buckle cover 2.

As shown in fig. 3, the buckle cover 2 and the bottom case 5 are detachably connected by a snap member; the disassembly and the assembly of each part of the switch box are convenient. As shown in fig. 2 and 5, the latch member includes a plurality of columnar positioning clips 202 fixedly disposed at four corners of the latch cover 2 and extending in a direction toward the touch screen circuit board 3 and the bottom chassis 5, and four positioning clip slots 501 (refer to fig. 8) disposed at four corners of the upper panel of the bottom chassis 5 and engaged with the positioning clips 202. In this embodiment, the number of the positioning cards 202 is four, and two positioning cards are arranged correspondingly. The touch screen circuit board 3 is provided with four positioning holes 302 (refer to fig. 1 and fig. 2), and the positioning holes 302 and the positioning card slots 501 are the same in number, opposite in position, and matched in shape with the positioning cards 202, and are used for sleeving the positioning cards 202.

As shown in fig. 6, the positioning clip 202 includes at least two vertical arc-shaped clips 202-1, two arc-shaped clips 202-1 in this embodiment are provided, a stopper 202-2 for preventing extrusion deformation and fracture is provided on an upper portion of an inner side surface of the arc-shaped clips 202-1, the stopper 202-2 is a right trapezoid block or a right triangle block with a wide upper portion and a narrow lower portion, and the stopper 202-2 in this embodiment is a right trapezoid block with a wide upper portion and a narrow lower portion.

As shown in fig. 8 and 9, four corners of the upper panel of the bottom case 5 are provided with positioning card slots 501 matched with the positioning cards 202, and the upper panel of the bottom case 5 is provided with calibration card slots 502 matched with the calibration board 201. The middle portion of the bottom chassis 5 is depressed downward to form an electronic component mounting groove 504. As shown in fig. 2, a PCB circuit board 4 is disposed in the electronic component mounting groove 504, a plurality of electronic components are connected to a lower side of the PCB circuit board 4, an electronic component mounting seat 508 for mounting the electronic components is disposed in the bottom case 5, and the electronic component mounting seat 508 and the electronic component mounting groove 504 form a stepped structure. The electronic component mounting base 508 is provided with a plurality of threading holes 508-1 (see fig. 8) through which electric wires of the electronic components of the PCB 4 pass. The bottom of the electronic component mounting groove 504 is provided with a plurality of air holes 506 arranged in an array shape, and the air holes 506 radiate the electronic components mounted in the middle of the electronic component mounting groove 504. The plurality of air holes 506 in this embodiment are gradually decreased from the middle to both sides to accommodate the high heat dissipation capacity in the middle.

As shown in fig. 8 and 9, an elastic stopper 505 for preventing the PCB circuit board 4 from sliding and dislocating is provided on the side plate 504-1 of the electronic component mounting groove 504. As shown in fig. 3 and 10, the elastic limiting member 505 comprises a square hole frame 505-1 and a plastic straight plate 505-2, the square hole frame 505-1 is arranged on the side plate 504-1, as shown in fig. 10, the plastic straight plate 505-2 is arranged in the square hole frame 505-1, the upper end and the lower end of the plastic straight plate 505-2 are fixedly connected with the frame body of the square hole frame 505-1, a gap is reserved between the plastic straight plate 505-2 and the two sides of the square hole frame 505-1, the plastic straight plate 505-2 is provided with a right-angled triangular prism 505-3 protruding inwards, as shown in fig. 8 and 9, the side plate 504-1 is further provided with an air permeable grid 507 for dissipating heat of an electronic element close to the side plate 504-1. In this embodiment, the air-permeable grills 507 are arranged in stripes at intervals.

As shown in fig. 5 and 6, the positioning clip 202 is formed by combining the arc-shaped clips 202-1 which are separated from each other, and the diameter of the positioning clip 202 is reduced by extruding the arc-shaped clips 202-1, so that the positioning clip 202 can be conveniently inserted into and pulled out of the positioning clip groove 501; the lower end of the arc-shaped fixture block 202-1 is provided with a barb II 202-3, and the barb II 202-3 prevents the positioning fixture 202 from accidentally sliding out of the positioning fixture slot 501 (see fig. 2) when being impacted, so that the buckle cover 2 is separated from the bottom shell 5.

Referring to fig. 1 to 3, in the switch box of the present embodiment, during assembly, only the calibration board 201 of the buckle cover 2 is required to correspond to the calibration slot 502 of the bottom case 5, so as to calibrate the positions of the buckle cover 2 and the bottom case 5 to correspond to each other, and further, the columnar positioning cards 202 are respectively inserted into the positioning slots 501 of the bottom case 5, and meanwhile, opposite forces are applied to the buckle cover 2 and the bottom case 5 slightly, so that the switch box can be conveniently installed.

Referring to fig. 2, 3 and 10, in the present embodiment, when the PCB 4 is mounted in place and the PCB 4 is affected by the abutting force in the direction toward the buckle cover 2, the right triangular prism 505-3 on the plastic straight plate 505-2 blocks the PCB 4 to prevent it from sliding and shifting in the direction toward the buckle cover 2; meanwhile, the plastic straight plate 505-2 made of plastic has certain elasticity, referring to fig. 10, since gaps are reserved between the plastic straight plate 505-2 and two sides of the square hole frame 505-1, when the PCB 4 is pressed downwards for installation, the elastic limiting member 505 is easily extruded to the outer side of the bottom case 5, so that the PCB 4 is fixed and limited, the required thrust force can be reduced when the PCB 4 is installed, and the installation difficulty is reduced.

An embodiment of a switch box: the switch box proposed in this embodiment has the same structure, size and shape as those of the switch box described in the above embodiments, and the detailed structure is not described in detail.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A switch box characterized by: the plastic-insulated plastic combined cover comprises a buckle cover (2) and a bottom shell (5) which are integrally formed by insulating plastic, wherein the buckle cover (2) and the bottom shell (5) are mutually detachably connected; the middle part of the bottom shell (5) is downwards sunken to form an electronic element mounting groove (504), a PCB (printed circuit board) (4) is arranged in the electronic element mounting groove (504), and an elastic limiting component (505) for preventing the PCB (4) from sliding and dislocating is arranged on a side plate (504-1) of the electronic element mounting groove (504); the elastic limiting component (505) comprises a square hole frame (505-1) and a plastic straight plate (505-2) matched with the square hole frame (505-1), the square hole frame (505-1) is arranged on the side plate (504-1), the upper end and the lower end of the plastic straight plate (505-2) are fixedly connected with a frame body of the square hole frame (505-1), and gaps are reserved between the left side and the right side of the plastic straight plate (505-2) and a frame of the square hole frame (505-1); the plastic straight plate (505-2) is provided with a right-angled triangular prism (505-3) which protrudes inwards; the bottom shell (5) is provided with a ventilation structure.

2. A switch box as claimed in claim 1, characterized in that: an electronic element mounting seat (508) for mounting electronic elements of the PCB (4) is arranged in the bottom shell (5), and the electronic element mounting seat (508) and the electronic element mounting groove (504) form a stepped structure; the electronic element mounting seat (508) is provided with a plurality of threading holes (508-1).

3. A switch box as claimed in claim 2, characterized in that: the buckle cover (2) is detachably connected with the bottom shell (5) through a buckle component; the buckle component comprises a columnar positioning card (202) and a positioning card slot (501) matched with the positioning card (202); the positioning clamp (202) is fixedly arranged at the four corners of the buckle cover (2) and extends towards the bottom shell (5), and the positioning clamp (202) comprises at least two vertical arc-shaped clamping blocks (202-1); the lower end of the arc-shaped fixture block (202-1) is provided with a barb II (202-3), the upper part of the inner side surface of the arc-shaped fixture block (202-1) is provided with a stop block (202-2) for preventing extrusion deformation and fracture, and the stop block (202-2) is a right-angled trapezoid block or a right-angled triangle block with a wide upper part and a narrow lower part; the positioning clamping grooves (501) are arranged at the four corners of the upper panel of the bottom shell (5).

4. A switch box according to claim 3, characterized in that: the lower side of the buckle cover (2) is provided with a calibration board card (201) used for calibrating the direction, the lower end of the calibration board card (201) is provided with an inward convex barb I (201-1), and the upper part of the bottom shell (5) is provided with a calibration clamping groove (502) matched with the calibration board card (201).

5. A switch box according to claim 4, characterized in that: the ventilation structure comprises ventilation holes (506) and a ventilation grid (507); the air holes (506) are arranged at the bottom of the electronic element mounting groove (504), and the air grids (507) are arranged on the side plates (504-1).

6. A switch, characterized by: the touch screen control circuit board comprises a touch screen (1), a touch screen circuit board (3) for controlling the touch screen (1), a PCB circuit board (4) and a switch box; the switch box comprises a buckle cover (2) and a bottom shell (5) which are integrally formed by insulating plastics, and the buckle cover (2) and the bottom shell (5) are mutually detachably connected; the touch screen (1) is attached to the buckle cover (2), a circuit board clamping groove (203) is formed in the middle of the buckle cover (2), and the touch screen circuit board (3) is arranged in the circuit board clamping groove (203); the middle part of the bottom shell (5) is downwards sunken to form an electronic element mounting groove (504), the PCB (4) is arranged in the electronic element mounting groove (504), and an elastic limiting component (505) for preventing the PCB (4) from sliding and dislocating is arranged on a side plate (504-1) of the electronic element mounting groove (504); the elastic limiting component (505) comprises a square hole frame (505-1) and a plastic straight plate (505-2) matched with the square hole frame (505-1), the square hole frame (505-1) is arranged on the side plate (504-1), the upper end and the lower end of the plastic straight plate (505-2) are fixedly connected with a frame body of the square hole frame (505-1), and gaps are reserved between the left side and the right side of the plastic straight plate (505-2) and a frame of the square hole frame (505-1); the plastic straight plate (505-2) is provided with a right-angled triangular prism (505-3) which protrudes inwards; the lower side of the PCB (4) is connected with a plurality of electronic elements; the bottom shell (5) is provided with a ventilation structure.

7. A switch as claimed in claim 6, wherein: an electronic element mounting seat (508) for mounting electronic elements of the PCB (4) is arranged in the bottom shell (5), and the electronic element mounting seat (508) and the electronic element mounting groove (504) form a stepped structure; the electronic element mounting seat (508) is provided with a plurality of threading holes (508-1).

8. A switch as claimed in claim 7, wherein: the buckle cover (2) is detachably connected with the bottom shell (5) through a buckle component; the buckle component comprises a columnar positioning card (202) and a positioning card slot (501) matched with the positioning card (202); the positioning clamp (202) is fixedly arranged at the four corners of the buckle cover (2) and extends towards the bottom shell (5), and the positioning clamp (202) comprises at least two vertical arc-shaped clamping blocks (202-1); the lower end of the arc-shaped fixture block (202-1) is provided with a barb II (202-3), the upper part of the inner side surface of the arc-shaped fixture block (202-1) is provided with a stop block (202-2) for preventing extrusion deformation and fracture, and the stop block (202-2) is a right-angled trapezoid block or a right-angled triangle block with a wide upper part and a narrow lower part; the positioning clamping grooves (501) are arranged at the four corners of the upper panel of the bottom shell (5).

9. A switch as claimed in claim 8, wherein: a calibration board card (201) used for calibrating the direction is arranged on the lower side of the buckle cover (2), an inward-protruding barb I (201-1) is arranged at the lower end of the calibration board card (201), and a calibration clamping groove (502) matched with the calibration board card (201) is arranged on the upper part of the bottom shell (5); the edge of the touch screen circuit board (3) is provided with a limit groove (301) matched with the calibration board card (201).

10. A switch as claimed in claim 9, wherein: the ventilation structure comprises ventilation holes (506) and a ventilation grid (507); the air holes (506) are arranged at the bottom of the electronic element mounting groove (504), and the air grids (507) are arranged on the side plates (504-1).