CN220324762U - Fire control module structure - Google Patents

Abstract

The utility model relates to the technical field of fire-fighting equipment, and particularly discloses a fire-fighting control module structure. It comprises the following steps: the circuit board is fixed in the upper shell to form an upper module assembly; the wiring terminal comprises a substrate, an upper elastic sheet and a lower elastic sheet which are connected with the substrate, and is arranged on the base through the substrate to form a lower module assembly; the upper module assembly and the lower module assembly are folded, the lower surface of the circuit board is elastically abutted against the lower elastic sheet, the elastic sheet pressing mechanism is abutted against the elastic deformation of the upper elastic sheet towards the upper surface of the circuit board, the circuit board is clamped between the upper elastic sheet and the lower elastic sheet, and the upper elastic sheet and/or the lower elastic sheet are in contact with the electric contact sites. The scheme has high assembly efficiency and good connection firmness, and improves the reliability of current transmission and signal transmission of the fire control module structure.

Description

Fire control module structure

Technical Field

The utility model relates to the technical field of fire-fighting equipment, and particularly discloses a fire-fighting control module structure.

Background

The fire control module is an important assembly part in the fire control linkage control system and is generally divided into an input module, an output module, an input/output module, a relay module, an isolation module and the like according to functions.

The existing fire control module structure generally comprises a base, an upper shell, a circuit board, wiring terminals and the like, and the connection of the wiring terminals and the circuit board in the market at present mostly depends on single-sided contact.

One is binding post, line ball screw and line ball board are fixed on the base, and binding post passes through self shell fragment and contacts with the circuit board in circuit board lower part, like the contact assembly of the integration base that patent number CN206461132U discloses, its shell fragment and printed wiring board bottom elasticity butt to switch on the circuit. However, due to mounting problems (such as deformation of the base), the contact between the spring plate and the circuit board is poor, and the circuit board is not electrified.

The other is that the binding post, the line ball screw and the line ball board are fixed on the base, and the lower shell fragment of middle shell fragment contacts with binding post, and the last shell fragment of middle shell fragment contacts with the circuit board in circuit board lower part. The plug-in terminal and the alarm using the plug-in terminal disclosed in the patent number CN203225376U adopt an electric connection mode that the side surfaces of two conducting strips are propped against each other, so that the contact of the conducting strips is more in place, and the electric connection is reliable. Although the structure is convenient to install and use, the production cost is high because the middle spring plate is added, and the circuit board is possibly not electrified because of the installation reason.

Therefore, aiming at the defects of poor connection stability and unintelligible electrical connection reliability of the connecting terminal and the circuit board of the current fire-fighting module structure, a fire-fighting control module structure with a brand new structure needs to be developed.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a fire control module structure.

The utility model discloses a fire control module structure, which adopts the following technical scheme:

a fire control module structure comprising: the circuit board comprises a base, an upper shell, a circuit board and a wiring terminal, wherein a plurality of electric contact sites are arranged on the upper surface and/or the lower surface of the circuit board, the upper shell is provided with an elastic sheet pressing mechanism, and the circuit board is fixed in the upper shell to form an upper module assembly; the wiring terminal comprises a substrate, an upper elastic sheet and a lower elastic sheet which are connected with the substrate, and the wiring terminal is arranged on the base through the substrate to form a lower module assembly; the upper module assembly and the lower module assembly are folded, the lower surface of the circuit board is elastically abutted against the lower elastic sheet, the elastic sheet pressing mechanism is abutted against the elastic deformation of the upper elastic sheet towards the upper surface of the circuit board, the circuit board is clamped between the upper elastic sheet and the lower elastic sheet, and the upper elastic sheet and/or the lower elastic sheet are in contact with the electric contact sites.

Preferably, the circuit board is fixed on the upper shell through the middle buckle, and the elastic sheet pressing mechanism is arranged on the middle buckle.

Further preferably, the substrate, the upper elastic sheet and the lower elastic sheet are integrally formed, the upper elastic sheet is bent to form a vertical portion and a pressing portion, the vertical portion is connected with the substrate, the pressing portion is bent towards one side of the lower elastic sheet, the pressing portion is elastically abutted to the elastic sheet pressing mechanism, and the tail end of the pressing portion is elastically abutted to the upper surface of the circuit board.

Further preferably, the vertical portion is provided with a side bending portion in a bending manner, and the side bending portion bulges outwards away from the direction of the lower elastic sheet.

Still preferably, the spring pressing mechanism is provided with a driving part, the driving part abuts against the lateral bending part, the lateral bending part is elastically deformed towards the lower spring plate, and the pressing part abuts against the upper surface of the circuit board along with the lateral bending of the lateral bending part.

Further preferably, before the upper module assembly and the lower module assembly are folded in place, when the lower surface of the circuit board passes over the tail end of the pressing part of the upper elastic piece and contacts with the lower elastic piece, the driving part starts to generate a tight lateral bending action on the lateral bending part so as to drive the tail end of the pressing part of the upper elastic piece to elastically abut against the upper surface of the circuit board; and as the upper module assembly and the lower module assembly are folded in place, the elastic sheet pressing mechanism and the pressing part of the upper elastic sheet generate a pressing action, and the pressing part of the upper elastic sheet is pressed against the upper surface of the circuit board again.

Further preferably, the elastic sheet pressing mechanism is provided with a limiting part, and the limiting part is positioned at one side of the upper elastic sheet vertical part, which is away from the direction of the lower elastic sheet.

Preferably, the upper elastic sheet pressing part is bent to form an arc shape, the side wall of the elastic sheet pressing mechanism, which is in contact with the pressing part, is provided with an arc surface, and the arc surface of the elastic sheet pressing mechanism is matched with the arc-shaped pressing part.

Preferably, the upper elastic sheet is bent to form a vertical part, a pressing part and a guiding part, the guiding part is arranged at the tail end of the pressing part to form an arc-shaped guiding surface, and the edge of the circuit board slides into the space between the upper elastic sheet and the lower elastic sheet through the arc-shaped guiding surface.

Preferably, a first hook is arranged in the upper shell, and a first buckling position matched and buckled with the first hook is arranged on the middle buckle; the middle buckle is provided with a second hook buckle, and the base is provided with a second buckle position which is matched and buckled with the second hook buckle.

Compared with the prior art, the utility model at least comprises the following beneficial effects:

this scheme is through setting up the binding post that contains the special structure of going up shell fragment and lower shell fragment, set up the shell fragment in the epitheca simultaneously and support tight mechanism for go up the shell fragment and receive the shell fragment and support the tight mechanism and push down back towards circuit board upper surface elasticity butt, thereby make binding post go up shell fragment and lower shell fragment and carry out the centre gripping with circuit board upper and lower surface fixedly, the in-process of module subassembly about the equipment has accomplished the connection to circuit board and binding post, be different from the single face contact of current binding post and circuit board, this scheme is high in packaging efficiency, and the connection fastness is good moreover, has improved the current transmission and the signal transmission's of fire control module structure reliability.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a fire control module structure according to the present embodiment;

FIG. 2 is a schematic diagram of a split structure of an upper module assembly of the fire control module structure according to the present embodiment;

FIG. 3 is an assembled schematic view of an upper module assembly of the fire control module structure according to the present embodiment;

FIG. 4 is an enlarged view of FIG. 3A;

fig. 5 is a schematic view of a connection terminal of a fire control module structure according to the embodiment;

FIG. 6 is an assembly schematic diagram of an upper module assembly and a lower module assembly of a fire control module structure according to the present embodiment;

FIG. 7 is a schematic diagram illustrating an assembly process of a fire control module structure according to the present embodiment;

FIG. 8 is a schematic diagram illustrating an assembling process of a fire control module structure according to the present embodiment;

fig. 9 is a schematic diagram illustrating an assembly process of a fire control module structure according to the present embodiment.

Reference numerals illustrate:

1. an upper case; 11. a first clasp; 2. a circuit board; 3. middle buckle; 31. hole sites; 32. a spring plate pressing mechanism; 33. a limit part; 34. a driving section; 35. a first buckling position; 36. a second clasp; 4. a base; 41. a second buckling position; 5. a connection terminal; 51. a substrate; 52. a spring plate is arranged; 521. a vertical portion; 522. a side bending part; 523. a pressing part; 524. a guide part; 53. a lower spring plate; 100. an upper module assembly; 200. and a lower module assembly.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.

A fire control module structure, referring to the figure, comprises an upper shell 1, a circuit board 2, a base 4 and a plurality of wiring terminals 5. The upper surface and/or the lower surface of the circuit board 2 are provided with a plurality of electric contact sites, the upper shell 1 is provided with a plurality of elastic sheet pressing mechanisms 32, and the circuit board 2 is fixed in the upper shell 1 to form an upper module assembly 100; referring to the drawings, the terminal 5 includes a base plate 51, and upper and lower spring plates 52 and 53 connected to the base plate 51, and the terminal 5 is mounted on the base 4 through the base plate 51 to constitute a lower module assembly 200. The upper module assembly 100 and the lower module assembly 200 are folded, the lower surface of the circuit board 2 is elastically abutted against the lower elastic piece 53, the elastic piece pressing mechanism 32 is pressed against the upper elastic piece 52 to elastically deform towards the upper surface of the circuit board 2, the circuit board 2 is clamped between the upper elastic piece 52 and the lower elastic piece 53, and the upper elastic piece 52 and/or the lower elastic piece 53 are in contact with an electrical contact site of the circuit board 2. Compared with the prior art, the upper elastic piece 52 and the lower elastic piece 53 of the wiring terminal 5 in the scheme are respectively contacted with the upper surface and the lower surface of the circuit board 2 at the same time, so that the reliability of current transmission and signal transmission is improved.

In this embodiment, referring to fig. 2, the fire control module structure of the present embodiment further includes a middle buckle 3, the middle buckle 3 clamps the circuit board 2 in the upper shell 1, a first hook buckle 11 is disposed in the upper shell 1, a first buckle position 35 that is engaged with the first hook buckle 11 is disposed on the middle buckle 3, and the first hook buckle 11 and the first buckle position 35 are engaged with each other to form the upper module assembly 100 by assembling the upper shell 1, the circuit board 2 and the middle buckle 3. In other embodiments, the circuit board 2 may also be directly fixedly connected to the upper case 1.

Referring to fig. 3 to 4, the middle buckle 3 is provided with a second hook buckle 36, and the base 4 is provided with a second buckle position 41 matched and buckled with the second hook buckle 36, so that the upper module assembly 100 and the lower module assembly 200 are folded and fixed. The middle buckle 3 is provided with a plurality of hole sites 31, a plurality of spring sheet pressing mechanisms 32 are arranged in the middle buckle 3 and are positioned on one side of the hole sites 31, the hole sites 31 are in one-to-one correspondence with a plurality of electric contact sites on the circuit board 2, so that the electric contact sites on the circuit board 2 are exposed out of the middle buckle 3, the wiring terminal 5 extends into the middle buckle 3 through the corresponding hole sites 31, and the spring sheet pressing mechanisms 32 of the middle buckle 3 press corresponding upper spring sheets 52 of the wiring terminal 5, so that the circuit board 2 is clamped between the upper spring sheets 52 and the lower spring sheets 53. The setting of well knot 3 has not only played the effect of fixed mounting circuit board 2, does benefit to equipment production efficiency and installation stability, can play the effect of compressing tightly shell fragment 52 moreover, improves the connection reliability between circuit board 2 and binding post 5.

Referring to fig. 5, the connection terminal 5 is made of stainless steel, beryllium copper, phosphor copper, or other material with good elasticity, and the base plate 51, the upper spring piece 52, and the lower spring piece 53 are integrally formed by punching and bending. The upper spring plate 52 is bent to form a vertical portion 521 and a pressing portion 523, the vertical portion 521 connects the pressing portion 523 with the substrate 51, the pressing portion 523 is bent toward the lower spring plate 53, the pressing portion 523 elastically abuts against the spring plate pressing mechanism 32, and the end of the pressing portion 523 elastically abuts against the upper surface of the circuit board 2. In this embodiment, the pressing portion 523 is bent to form an arc shape, the side wall of the elastic sheet pressing mechanism 32 in contact with the pressing portion 523 is set to be an arc surface, and the arc surface of the elastic sheet pressing mechanism 32 is adapted to the arc-shaped pressing portion 523, so as to facilitate smoothness of the upper elastic sheet 52 in the process of pressing down and clamping the circuit board 2 by the elastic sheet pressing mechanism 32. The substrate 51 is assembled with the wire pressing screw and the wire pressing plate in a matching way for being connected with an external cable.

Referring to fig. 5, in this embodiment, a side bending portion 522 is further bent on the vertical portion 521 of the upper elastic sheet 52, the side bending portion 522 is protruded outwards away from the direction of the lower elastic sheet 53, in addition, a guiding portion 524 is further bent at the end of the pressing portion 523, the guiding portion 524 and the end of the pressing portion 523 form an arc guiding surface, and the vertical portion 521, the side bending portion 522, the pressing portion 523 and the guiding portion 524 are all integrally formed by bending. By providing the side bending portion 522, the elasticity of the pressing portion 523 can be made larger, and the circuit board 2 can be more easily pressed down by the spring plate pressing mechanism 32 and deformed to be abutted against the circuit board; by arranging the guiding portion 524, when the upper module assembly 100 and the lower module assembly 200 are folded, the edge of the circuit board 2 can slide into the space between the upper elastic sheet 52 and the lower elastic sheet 53 through the arc guiding surface, so that the reliability and smoothness of assembly are improved, and the scratch condition of the circuit board 2 in the installation process is effectively reduced.

Referring to fig. 4, the spring pressing mechanism 32 in the present embodiment is provided with a limiting portion 33, and the limiting portion 33 is located at a side of the vertical portion 521 of the upper spring 52 away from the direction of the lower spring 53. In the folding process of the upper module assembly 100 and the lower module assembly 200, the limiting part 33 plays a role in limiting the lateral bending of the vertical part 521 in the direction away from the circuit board 2, so that the reliability of assembly is further improved, and the production yield is effectively improved.

Referring to fig. 4, the spring pressing mechanism 32 in the present embodiment is provided with a driving portion 34, and the driving portion 34 is located at one side of the limiting portion 33 and protrudes toward the upper spring 52. When the upper module assembly 100 and the lower module assembly 200 are folded, the driving portion 34 abuts against the lateral bending portion 522, the lateral bending portion 522 is elastically deformed toward the lower elastic sheet 53, and the pressing portion 523 abuts against the upper surface of the circuit board 2 along with the lateral bending portion 522. The driving part 34 of the spring plate pressing mechanism 32 is matched with the side bending part 522 of the upper spring plate 52, so that the clamping firmness of the wiring terminal 5 to the circuit board 2 is further enhanced, and the reliability of current transmission and signal transmission of the fire control module is better improved.

The assembly process and the function of the fire control module structure of the scheme are realized as follows:

after the upper module assembly 100 and the lower module assembly 200 are assembled, the finished product installation can be performed. When installed, the upper module assembly 100 is installed against the lower module assembly 200 in the indicated direction. Before the lower surface of the circuit board 2 of the upper module assembly 100 completely passes over the guiding portion 524 of the upper spring piece 52 of the wiring terminal 5, the spring piece pressing mechanism 32, the limiting portion 33 and the driving portion 34 on the middle buckle 3 do not interact with the upper spring piece 52 of the wiring terminal 5, and at this time, the driving portion 34 only plays a role of guiding and limiting, so that the upper spring piece 52 of the wiring terminal 5 is prevented from being bent sideways in a direction away from the circuit board 2.

Referring to fig. 7, as the upper module assembly 100 continues to move forward, when the lower surface of the circuit board 2 of the upper module assembly 100 completely passes over the upper spring sheet 52 of the wiring terminal 5, the spring sheet pressing mechanism 32, the limiting portion 33 and the driving portion 34 on the middle buckle 3 still do not act on the wiring terminal 5, and at this time, the limiting portion 33 and the driving portion 34 simultaneously play a role in guiding and limiting, so as to prevent the upper spring sheet 52 of the wiring terminal 5 from being laterally bent in a direction away from the circuit board 2.

Referring to fig. 8, the upper module assembly 100 continues to move forward, when the lower surface of the circuit board 2 of the upper module assembly 100 contacts the lower spring plate 53 of the connecting terminal 5, the driving portion on the middle buckle and the lateral bending portion of the upper spring plate start to generate tight lateral bending action, so that the upper spring plate is forced to laterally bend towards the direction of the circuit board, and at this time, the spring plate pressing mechanism on the middle buckle and the connecting terminal still do not act.

Referring to fig. 9, the upper module assembly 100 continues to move forward, the driving portion 34 on the middle buckle 3 and the lateral bending portion 522 of the upper elastic piece 52 continue to act, so that the upper elastic piece 52 of the wiring terminal 5 is forced to further laterally bend towards the direction of the circuit board 2, the upper elastic piece 52 of the wiring terminal 5 contacts with the upper surface of the circuit board 2 and is pressed on the circuit board 2, after reaching the limit position, the second hook buckle 36 on the middle buckle 3 is engaged with the second buckle position 41 on the base, meanwhile, the elastic piece pressing mechanism 32 on the middle buckle 3 is pressed on the pressing portion 523 of the upper elastic piece 52, the upper elastic piece 52 of the wiring terminal 5 is further pressed on the circuit board 2, the installation process is completed, and the product function is achieved.

The foregoing has outlined rather broadly the more detailed description of the utility model in order that the detailed description of the utility model that follows may be better understood, and in order that the present principles and embodiments may be better understood; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present utility model, the present description should not be construed as limiting the present utility model in view of the above.

Claims (10)

1. The fire control module structure comprises a base, an upper shell, a circuit board and a wiring terminal, and is characterized in that a plurality of electric contact sites are arranged on the upper surface and/or the lower surface of the circuit board, the upper shell is provided with an elastic sheet pressing mechanism, and the circuit board is fixed in the upper shell to form an upper module assembly; the wiring terminal comprises a substrate, an upper elastic sheet and a lower elastic sheet which are connected with the substrate, and the wiring terminal is arranged on the base through the substrate to form a lower module assembly; the upper module assembly and the lower module assembly are folded, the lower surface of the circuit board is elastically abutted against the lower elastic sheet, the elastic sheet pressing mechanism is abutted against the elastic deformation of the upper elastic sheet towards the upper surface of the circuit board, the circuit board is clamped between the upper elastic sheet and the lower elastic sheet, and the upper elastic sheet and/or the lower elastic sheet are in contact with the electric contact sites.

2. The fire control module structure of claim 1, further comprising a middle buckle, wherein the circuit board is fixed on the upper shell by the middle buckle, and the spring plate pressing mechanism is arranged on the middle buckle.

3. The fire control module structure according to claim 1, wherein the base sheet, the upper spring sheet and the lower spring sheet are integrally formed, the upper spring sheet is bent to form a vertical portion and a pressing portion, the vertical portion connects the pressing portion with the base sheet, the pressing portion is bent towards one side of the lower spring sheet, the pressing portion is elastically abutted with the spring sheet pressing mechanism, and the tail end of the pressing portion is elastically abutted with the upper surface of the circuit board.

4. A fire control module structure according to claim 3, wherein the vertical portion is provided with a lateral bending portion, and the lateral bending portion bulges outwards away from the direction of the lower spring plate.

5. The fire control module structure according to claim 4, wherein the spring pressing mechanism is provided with a driving part, the driving part abuts against the lateral bending part, the lateral bending part is elastically laterally bent towards the lower spring, and the pressing part abuts against the upper surface of the circuit board along with the lateral bending of the lateral bending part.

6. The fire control module structure according to claim 5, wherein when the lower surface of the circuit board passes over the end of the pressing part of the upper spring plate and contacts with the lower spring plate before the upper module assembly and the lower module assembly are folded in place, the driving part starts to generate a tight lateral bending action on the lateral bending part to drive the end of the pressing part of the upper spring plate to elastically abut against the upper surface of the circuit board; and as the upper module assembly and the lower module assembly are folded in place, the elastic sheet pressing mechanism and the pressing part of the upper elastic sheet generate a pressing action, and the pressing part of the upper elastic sheet is pressed against the upper surface of the circuit board again.

7. The fire control module structure according to claim 3, wherein the spring pressing mechanism is provided with a limiting portion, and the limiting portion is located at one side of the upper spring vertical portion away from the direction of the lower spring.

8. The fire control module structure according to claim 3, wherein the upper spring pressing portion is bent to form an arc shape, a side wall of the spring pressing mechanism, which is in contact with the pressing portion, is provided with an arc surface, and the arc surface of the spring pressing mechanism is adapted to the arc-shaped pressing portion.

9. The fire control module structure according to claim 3, wherein the upper spring plate is bent to form a vertical portion, a pressing portion and a guiding portion, the guiding portion is arranged at the tail end of the pressing portion to form an arc-shaped guiding surface, and the edge of the circuit board slides into the space between the upper spring plate and the lower spring plate through the arc-shaped guiding surface.

10. The fire control module structure according to claim 2, wherein a first clasp is arranged in the upper shell, and a first clasp position matched and buckled with the first clasp is arranged on the middle clasp; the middle buckle is provided with a second hook buckle, and the base is provided with a second buckle position which is matched and buckled with the second hook buckle.