CN220931051U

CN220931051U - Emergency light PCB board mounting structure

Info

Publication number: CN220931051U
Application number: CN202322691043.6U
Authority: CN
Inventors: 林川
Original assignee: Fuzhou Kangxin Lighting Co ltd
Current assignee: Fuzhou Kangxin Lighting Co ltd
Priority date: 2023-10-09
Filing date: 2023-10-09
Publication date: 2024-05-10
Anticipated expiration: 2033-10-09

Abstract

The application relates to the technical field of emergency lamps and solves the problem that the existing PCB mounting and dismounting process is troublesome, and discloses an emergency lamp PCB mounting structure. The application can facilitate the disassembly and assembly of the PCB.

Description

Emergency light PCB board mounting structure

Technical Field

The application relates to the technical field of emergency lamps, in particular to an emergency lamp PCB mounting structure.

Background

The emergency lighting lamp can effectively illuminate and display the evacuation channel when the normal lighting power supply fails, and is widely applied to various public places.

The emergency lighting lamp generally comprises a shell and a panel matched with the shell, wherein a PCB and an LED lamp are fixedly arranged in the shell, the PCB is generally fixed in a manner of being provided with a through hole through the PCB, and then a threaded hole is formed in the shell and screwed in the shell through a screw.

Because the PCB is required to be mounted at a fixed position, a plurality of positioning convex blocks are arranged on the bottom surface of the shell at present, and meanwhile, positioning holes are correspondingly formed in the PCB to be matched with the positioning convex blocks for positioning. Therefore, the PCB needs to be additionally perforated, the alignment of the positioning holes and the positioning convex blocks on the PCB needs to be ensured when the PCB is positioned, the PCB can be detached only by completely perpendicular to the bottom surface of the shell when the PCB is detached, and the disassembly and assembly processes are troublesome.

Disclosure of utility model

In order to solve the problem that the existing PCB assembly and disassembly processes are troublesome, the application provides an emergency lamp PCB installation structure.

The application provides an emergency lamp PCB board mounting structure, which adopts the following technical scheme:

The utility model provides an emergency light PCB board mounting structure, includes hollow casing, be provided with the spliced pole in the casing, offer on the spliced pole be used for with the last perforation cooperation of PCB board screw in the screw hole of screw, the bottom in the casing is provided with a plurality of pairs the lower backup pad that the PCB board supported, be provided with in the casing right the upper end of PCB board carries out spacing last spacing post, the lower backup pad with go up being formed with between the spacing post and supplying the location space that the PCB board passed, the casing passes through go up spacing post separation and form installation space and spacing space, lower backup pad at least part set up in the installation space, the PCB board is followed get into in the installation space inside the casing, then pass through location space and get into after in the spacing space, the screw hole can with the perforation alignment of PCB board.

By adopting the technical scheme, the PCB firstly enters the shell from the installation space, then is propped against the lower supporting plate in the installation space, and then is controlled to horizontally move through the positioning space and enter the limiting space; in addition, because the bottom of PCB board is with the bottom backup pad offset down, so still leave the interval between the bottom of PCB board and the bottom of casing, and after the horizontal migration of PCB board offsets with the location portion, have the clearance that makes things convenient for the staff male between lateral wall of casing and the PCB board to the staff shifts out the PCB board when dismantling conveniently.

Optionally, the casing is provided with in the spacing space with the supporting shoe that supports the PCB board.

Through adopting above-mentioned technical scheme, through the design of supporting shoe, the supporting shoe can be realized in two positions of installation space and spacing space to the support of PCB board with lower backup pad cooperation.

Optionally, a chamfer is disposed on a side of the supporting block facing the positioning space, which facilitates the entering of the PCB.

Through adopting above-mentioned technical scheme, the setting of chamfer can make things convenient for the PCB board to get into in the spacing space.

Optionally, the shell is further provided with a positioning column in the limiting space, and the bottom end of the positioning column abuts against the upper end face of the PCB.

Through adopting above-mentioned technical scheme, the reference column cooperates with last spacing post, and lower backup pad and supporting shoe cooperation can form the strong point of two upper ends and two lower extreme to the PCB board.

Optionally, an elastic element is arranged at the bottom of the positioning column.

Through adopting above-mentioned technical scheme, the reference column offsets with the PCB board through the elastic component, and the elastic component can give the PCB board a decurrent tight power of supporting after offset with the PCB board to promote the stability after the PCB board is installed.

Optionally, the casing sets up in spacing space supplies the locating part of PCB board butt, when the PCB board with the locating part offsets, the perforation with the screw hole aligns.

Through adopting above-mentioned technical scheme, until the PCB board offsets with the location portion after, thereby the perforation on the PCB board can align with the screw hole in the lower backup pad and screw in follow-up screw conveniently.

Optionally, the positioning part is a plurality of positioning protrusions arranged on the inner wall of the shell.

Through adopting above-mentioned technical scheme, PCB board offsets with the location arch, can make there is certain clearance between lateral wall and the shells inner wall of PCB board, can make things convenient for the heat dissipation of PCB board during operation.

Optionally, a guide angle is arranged at the bottom of the upper limit post, which is convenient for the PCB to enter the positioning space.

Through adopting above-mentioned technical scheme, can make things convenient for the PCB board to get into in the spacing space, need not to make PCB board and location space perfect alignment.

Optionally, an anti-tilting column propped against the middle part of the upper end surface of the PCB is arranged at the upper end of the shell in the limit space.

Through adopting above-mentioned technical scheme, can prevent that the PCB board from being used for too and leading to the perk of PCB board when removing to location portion.

In summary, the present application includes at least one of the following beneficial effects:

1. During the process of installing and dismantling the PCB, the alignment of the perforation on the PCB and the threaded hole on the shell and the threading of the screw for fixing are not required by the alignment of the positioning column on the shell and the positioning hole on the PCB;

2. The PCB board gets into in the casing from the installation space earlier, then offsets with the lower backup pad in the installation space, and then control PCB board horizontal migration passes through the location space and gets into spacing space in, and after the PCB board offsets with the location portion, the perforation on the PCB board can align with the screw hole in the lower backup pad thereby makes things convenient for follow-up screw to twist.

Drawings

Fig. 1 is a schematic structural diagram of an emergency lamp PCB board mounting structure according to a first embodiment of the present application;

FIG. 2 is an exploded view of an emergency light PCB mounting structure in accordance with an embodiment of the present application;

Fig. 3 is a schematic structural view of a PCB mounted in a housing according to a first embodiment of the present application;

Fig. 4 is a cross-sectional view of a PCB mounted in a housing according to a first embodiment of the present application;

fig. 5 is a cross-sectional view of a PCB mounted in a housing in a second embodiment of the present application;

FIG. 6 is a schematic view of another positioning portion according to a second embodiment of the present application;

fig. 7 is a schematic view showing a related structure of an elastic member in a third embodiment of the present application.

Reference numerals illustrate: 1. a housing; 11. a connecting column; 12. a lower support plate; 121. a lap joint; 13. an upper limit column; 14. a support block; 15. positioning columns; 151. an elastic member; 16. an installation space; 17. a limit space; 171. an anti-warp column; 172. a positioning part; 18. positioning space; 19. a notch; 2. a PCB board; 3. a panel.

Detailed Description

In the description of the present utility model, it should be noted that, for convenience of description and simplification of the description, it is only indicated that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, and it is not necessary to indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, the present utility model should not be construed as being limited thereto. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Embodiment one:

Referring to fig. 1, an embodiment of the application discloses an emergency lamp PCB board mounting structure, which comprises a hollow casing 1, wherein the casing 1 is provided with an opening communicated with the inside for a PCB board 2 to enter. The PCB 2 is provided with a through hole and is arranged in the shell 1, the bottom of the shell 1 is provided with a connecting column 11, the connecting column 11 is provided with a threaded hole, and when the through hole is aligned with the threaded hole, a screw is arranged in the through hole in a penetrating way, so that the PCB 2 can be fixed on the shell 1.

The shell 1 is covered at the opening and is provided with a panel 3, the panel 3 is provided with an LED lamp, and the panel 3 can adopt the existing structure, so that the description is omitted.

Further, referring to fig. 2, a plurality of lower support plates 12 for supporting the PCB 2 are disposed at the bottom of the housing 1, and the plurality of lower support plates 12 are symmetrically distributed at positions near the front and rear sidewalls of the bottom of the housing 1, where the front and rear sidewalls refer to two sidewalls of the housing 1 in the longitudinal direction. One side of the lower support plate 12 facing the center direction of the shell 1 is provided with a lap joint 121 which is convenient for the PCB 2 to be clamped in, and the lower support plate 12 can be provided with a round corner which guides the PCB 2 downwards into the lap joint 121. Meanwhile, at least two lower support plates 12 are arranged at intervals at the positions of the bottom of the shell 1, which are close to the front side and the rear side, so that at least two support points for the PCB 2 are formed in the length direction of the shell 1, and the stability of the PCB 2 when being placed on the lower support plates 12 is ensured.

Referring to fig. 2 and 3, upper limit posts 13 are symmetrically arranged on the front and rear side walls of the shell 1, a positioning space 18 adapting to the thickness of the PCB 2 is vertically arranged between the upper limit posts 13 and the lower support plate 12, and vertical limit can be realized when the PCB 2 is clamped into the positioning space 18. The inside of the shell 1 is divided into a mounting space 16 and a limiting space 17 at the left side and the right side through an upper limiting column 13, wherein the length of the mounting space 16 is larger than that of the PCB 2, and the length of the limiting space 17 is smaller than that of the PCB 2. The lower support plate 12 and the connecting column 11 are arranged in the installation space 16, the PCB 2 enters the shell 1 from the installation space 16, and then is propped against the lower support plate 12 in the installation space 16, and then transversely moves right to enter the limit space 17 through the positioning space 18, so that the PCB 2 and the shell 1 can be screwed in after the through holes on the PCB 2 are aligned with the threaded holes. In order to facilitate the entering of the PCB 2 into the positioning space 18, the bottom of the side of the upper limit post 13 facing the installation space 16 is also provided with a guide angle which facilitates the entering of the PCB 2 into the positioning space 18.

Further, referring to fig. 4, in order to improve stability of the PCB 2 during the mounting process. The shell 1 is also provided with a limiting mechanism for limiting the PCB 2 up and down in the limiting space 17. The limiting mechanism is arranged on the front side wall and the rear side wall of the shell 1, and specifically comprises a positioning column 15 and a supporting block 14 which are distributed up and down, the positioning column 15 and the supporting block 14 are vertically overlapped, and a distance matched with the thickness of the PCB 2 is also reserved between the positioning column 15 and the supporting block 14. When the PCB 2 enters between the positioning column 15 and the supporting block 14, the positioning column 15 can be propped against the upper end of the PCB 2, and the supporting block 14 can be propped against the lower end of the PCB 2, so that the PCB 2 is effectively positioned. Because the positioning column 15 and the supporting block 14 are arranged in the limiting space 17, the screw fixing points of the PCB 2 are positioned in the mounting space 16, and therefore, the positioning of the two ends of the PCB 2 can be formed by matching the positioning column 15 and the supporting block. In order to facilitate the PCB 2 to enter between the supporting block 14 and the positioning column 15, a chamfer is provided on the side of the supporting block 14 facing the positioning space 18.

In the process of screwing the side of the PCB 2 located in the installation space 16 by the screw, the side of the PCB 2 located in the limit space 17 is easily tilted due to the screwing force. To avoid this phenomenon, the connection of the PCB 2 is unstable. In this embodiment, the housing 1 is further provided with an anti-warpage post 171 in the limit region, which abuts against the middle position of the PCB 2.

Further, referring to fig. 4, the anti-tilting column 171 is provided with an upper threaded hole, the PCB 2 is provided with a through hole at a corresponding position, and the bottom of the housing 1 is provided with a notch 19 at the position of the limit space 17, which is communicated with the limit space 17. The notch 19 is aligned with the position of the anti-warp beam 171, so that the screw can conveniently enter the limit space 17 from bottom to top from the notch 19 and be screwed onto the anti-warp beam 171. In this way, the stability of the PCB 2 after installation can be further enhanced.

The implementation principle of the emergency lamp PCB board mounting structure provided by the embodiment of the application is as follows:

The PCB 2 firstly enters the shell 1 from the installation space 16, then is propped against the lower support plate 12 in the installation space 16, then the PCB 2 is controlled to horizontally move into the limit space 17 through the positioning space 18 until the through holes on the PCB 2 are aligned with the threaded holes, and at the moment, the two sides of the PCB 2 are respectively screwed by the screws so as to fix the PCB 2.

When the PCB is removed, the screws are only required to be unscrewed, and the PCB 2 is moved reversely to be moved out of the limit space 17 and into the installation space 16. The PCB 2 can then be directly removed from the mounting space 16. Due to the arrangement of the connecting column 11 and the lower supporting plate 12, a distance is always reserved between the bottom of the PCB 2 and the bottom of the shell 1, so that the PCB 2 can be conveniently moved by hands.

Embodiment two:

Referring to fig. 5 and 6, an embodiment of the application discloses an emergency lamp PCB board mounting structure, in order to facilitate alignment of a through hole and a threaded hole, a positioning portion 172 for abutting a PCB board 2 is further provided in a limiting space 17 of a housing 1, and when the PCB board 2 abuts against the positioning portion 172, the through hole on the PCB board 2 can be directly aligned with the threaded hole on a connecting post 11.

In an embodiment, referring to fig. 5, the right side wall of the housing 1 may be directly used as the positioning portion 172 for abutting against the PCB board 2, and when the PCB board 2 abuts against the positioning portion 172, the through hole on the PCB board 2 can be directly aligned with the threaded hole on the connection post 11.

In another embodiment, referring to fig. 6, the positioning part 172 is a set of positioning protrusions provided on the right wall of the housing 1, and a plurality of positioning protrusions are provided along a linear array, and the positioning protrusions are arranged at the same height position as when the PCB board 2 is placed on the lower support plate 12. When the PCB 2 is abutted against the positioning protrusions, the through holes in the PCB 2 can be directly aligned with the threaded holes in the connecting columns 11, and compared with the case that the PCB is directly abutted against the inner wall of the shell 1, gaps are reserved between the positioning protrusions, so that heat dissipation of the PCB 2 is facilitated.

Embodiment III:

Referring to fig. 7, an embodiment of the present application discloses an emergency lamp PCB board mounting structure, and the first difference of the embodiment is that the distance between the positioning post 15 and the supporting block 14 is larger than the thickness of the PCB board 2, and an elastic member 151 is disposed on the bottom of the positioning post 15. The elastic piece 151 is a metal elastic piece, the metal elastic piece is arranged into an arc structure, one end of the metal elastic piece is connected to one side of the positioning column 15 close to the positioning space 18, and the other end of the metal elastic piece is a free end and has an elastic trend towards the direction of the supporting block 14. When the PCB 2 enters between the positioning column 15 and the supporting block 14, the metal spring plate can also guide the movement of the PCB 2, and meanwhile, the metal spring plate can be pushed to deform in the entering process of the PCB 2, so that the metal spring plate abuts against the PCB 2.

Of course, in other embodiments, the elastic member 151 may be a rubber pad, where the rubber pad is fixed at the bottom of the positioning post 15, and the rubber pad may be a hemispherical structure, so that the guiding effect may be achieved when the PCB 2 enters between the positioning post 15 and the supporting block 14.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims

1. The utility model provides an emergency light PCB board mounting structure, includes hollow casing (1), its characterized in that: be provided with spliced pole (11) in casing (1), be provided with on spliced pole (11) be used for with PCB board (2) on the screw hole of perforation cooperation screw-in, the bottom in casing (1) is provided with a plurality of pairs lower backup pad (12) that support are carried out to PCB board (2), be provided with in casing (1) right go up spacing post (13) of spacing are carried out to the upper end of PCB board (2), lower backup pad (12) with go up and be formed with between spacing post (13) and supply location space (18) that PCB board (2) passed, casing (1) are passed through go up spacing post (13) separation formation installation space (16) and spacing space (17), lower backup pad (12) at least part set up in installation space (16), PCB board (2) follow in installation space (16) get into inside casing (1), then pass through location space (18) and get into behind spacing space (17), threaded hole board (2) can align with the perforation of PCB board (2).

2. The emergency light PCB board mounting structure of claim 1, wherein: the shell (1) is provided with a supporting block (14) in the limiting space (17) for supporting the PCB (2).

3. The emergency light PCB board mounting structure of claim 2, wherein: and a chamfer angle which is convenient for the PCB (2) to enter is arranged on one side of the supporting block (14) facing the positioning space (18).

4. The emergency light PCB board mounting structure of claim 1, wherein: the shell (1) is further provided with a positioning column (15) in the limiting space (17), and the bottom end of the positioning column (15) abuts against the upper end face of the PCB (2).

5. The emergency light PCB board mounting structure of claim 4, wherein: the bottom of the positioning column (15) is provided with an elastic piece (151).

6. The emergency light PCB board mounting structure of claim 1, wherein: the shell (1) is provided with a positioning part (172) for the PCB (2) to abut in the limiting space (17), and when the PCB (2) abuts against the positioning part (172), the through hole is aligned with the threaded hole.

7. The emergency light PCB board mounting structure of claim 6, wherein: the positioning part (172) is a plurality of positioning protrusions arranged on the inner wall of the shell (1).

8. The emergency light PCB board mounting structure of claim 1, wherein: the bottom of the upper limit column (13) is provided with a guide angle which facilitates the PCB to enter the positioning space (18).

9. The emergency light PCB board mounting structure of claim 1, wherein: an anti-tilting column (171) which is propped against the middle part of the upper end surface of the PCB (2) is arranged at the upper end of the shell (1) in the limit space (17).